1999-04-16 03:35:26 +02:00
|
|
|
|
/* Select target systems and architectures at runtime for GDB.
|
2003-10-17 18:09:20 +02:00
|
|
|
|
|
2015-01-01 10:32:14 +01:00
|
|
|
|
Copyright (C) 1990-2015 Free Software Foundation, Inc.
|
2003-10-17 18:09:20 +02:00
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
Contributed by Cygnus Support.
|
|
|
|
|
|
1999-07-07 22:19:36 +02:00
|
|
|
|
This file is part of GDB.
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
1999-07-07 22:19:36 +02:00
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
|
|
|
it under the terms of the GNU General Public License as published by
|
2007-08-23 20:08:50 +02:00
|
|
|
|
the Free Software Foundation; either version 3 of the License, or
|
1999-07-07 22:19:36 +02:00
|
|
|
|
(at your option) any later version.
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
1999-07-07 22:19:36 +02:00
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
|
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
GNU General Public License for more details.
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
1999-07-07 22:19:36 +02:00
|
|
|
|
You should have received a copy of the GNU General Public License
|
2007-08-23 20:08:50 +02:00
|
|
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
#include "defs.h"
|
|
|
|
|
#include "target.h"
|
2013-10-31 09:50:15 +01:00
|
|
|
|
#include "target-dcache.h"
|
1999-04-16 03:35:26 +02:00
|
|
|
|
#include "gdbcmd.h"
|
|
|
|
|
#include "symtab.h"
|
|
|
|
|
#include "inferior.h"
|
Add new infrun.h header.
Move infrun.c declarations out of inferior.h to a new infrun.h file.
Tested by building on:
i686-w64-mingw32, enable-targets=all
x86_64-linux, enable-targets=all
i586-pc-msdosdjgpp
And also grepped the whole tree for each symbol moved to find where
infrun.h might be necessary.
gdb/
2014-05-22 Pedro Alves <palves@redhat.com>
* inferior.h (debug_infrun, debug_displaced, stop_on_solib_events)
(sync_execution, sched_multi, step_stop_if_no_debug, non_stop)
(disable_randomization, enum exec_direction_kind)
(execution_direction, stop_registers, start_remote)
(clear_proceed_status, proceed, resume, user_visible_resume_ptid)
(wait_for_inferior, normal_stop, get_last_target_status)
(prepare_for_detach, fetch_inferior_event, init_wait_for_inferior)
(insert_step_resume_breakpoint_at_sal)
(follow_inferior_reset_breakpoints, stepping_past_instruction_at)
(set_step_info, print_stop_event, signal_stop_state)
(signal_print_state, signal_pass_state, signal_stop_update)
(signal_print_update, signal_pass_update)
(update_signals_program_target, clear_exit_convenience_vars)
(displaced_step_dump_bytes, update_observer_mode)
(signal_catch_update, gdb_signal_from_command): Move
declarations ...
* infrun.h: ... to this new file.
* amd64-tdep.c: Include infrun.h.
* annotate.c: Include infrun.h.
* arch-utils.c: Include infrun.h.
* arm-linux-tdep.c: Include infrun.h.
* arm-tdep.c: Include infrun.h.
* break-catch-sig.c: Include infrun.h.
* breakpoint.c: Include infrun.h.
* common/agent.c: Include infrun.h instead of inferior.h.
* corelow.c: Include infrun.h.
* event-top.c: Include infrun.h.
* go32-nat.c: Include infrun.h.
* i386-tdep.c: Include infrun.h.
* inf-loop.c: Include infrun.h.
* infcall.c: Include infrun.h.
* infcmd.c: Include infrun.h.
* infrun.c: Include infrun.h.
* linux-fork.c: Include infrun.h.
* linux-nat.c: Include infrun.h.
* linux-thread-db.c: Include infrun.h.
* monitor.c: Include infrun.h.
* nto-tdep.c: Include infrun.h.
* procfs.c: Include infrun.h.
* record-btrace.c: Include infrun.h.
* record-full.c: Include infrun.h.
* remote-m32r-sdi.c: Include infrun.h.
* remote-mips.c: Include infrun.h.
* remote-notif.c: Include infrun.h.
* remote-sim.c: Include infrun.h.
* remote.c: Include infrun.h.
* reverse.c: Include infrun.h.
* rs6000-tdep.c: Include infrun.h.
* s390-linux-tdep.c: Include infrun.h.
* solib-irix.c: Include infrun.h.
* solib-osf.c: Include infrun.h.
* solib-svr4.c: Include infrun.h.
* target.c: Include infrun.h.
* top.c: Include infrun.h.
* windows-nat.c: Include infrun.h.
* mi/mi-interp.c: Include infrun.h.
* mi/mi-main.c: Include infrun.h.
* python/py-threadevent.c: Include infrun.h.
2014-05-22 13:29:11 +02:00
|
|
|
|
#include "infrun.h"
|
1999-04-16 03:35:26 +02:00
|
|
|
|
#include "bfd.h"
|
|
|
|
|
#include "symfile.h"
|
|
|
|
|
#include "objfiles.h"
|
2000-11-03 23:00:56 +01:00
|
|
|
|
#include "dcache.h"
|
1999-04-16 03:35:26 +02:00
|
|
|
|
#include <signal.h>
|
2001-03-01 02:39:22 +01:00
|
|
|
|
#include "regcache.h"
|
2003-10-24 22:24:06 +02:00
|
|
|
|
#include "gdbcore.h"
|
2006-11-28 23:10:26 +01:00
|
|
|
|
#include "target-descriptions.h"
|
2008-06-10 12:23:54 +02:00
|
|
|
|
#include "gdbthread.h"
|
2008-08-09 14:15:10 +02:00
|
|
|
|
#include "solib.h"
|
2009-06-03 20:50:36 +02:00
|
|
|
|
#include "exec.h"
|
gdb/
* NEWS: Document inlined function support.
* Makefile.in (SFILES): Add inline-frame.c.
(COMMON_OBS): Add inline-frame.o.
* block.c (contained_in): Rewrite to use lexical nesting.
(block_linkage_function): Skip inlined function blocks.
(block_inlined_p): New.
* block.h (struct block): Update comment.
(block_inlined_p): New prototype.
* blockframe.c (get_frame_block): Handle inlined functions.
(get_frame_function): Do not use block_linkage_function.
(block_innermost_frame): Use get_frame_block and contained_in.
* breakpoint.c (watchpoint_check): Remove extra reinit_frame_cache.
Skip over inlined functions. Simplify epilogue check.
(bpstat_check_breakpoint_conditions): Use get_stack_frame_id.
Update comments.
(set_momentary_breakpoint): Only accept non-inlined frames.
(watch_command_1): Use frame_unwind_caller_pc and
frame_unwind_caller_id instead of get_prev_frame.
(until_break_command): Likewise. Use get_stack_frame_id.
* buildsym.c (end_symtab): Set SYMBOL_SYMTAB for block functions.
* dwarf2loc.c (dwarf_expr_frame_base): Use block_linkage_function.
* dwarf2read.c (process_die): Handle DW_TAG_inlined_subroutine.
(read_func_scope, new_symbol): Likewise. Handle arguments specially
for inlined functions without call site information.
(inherit_abstract_dies): Allow tag mismatch for inlined subroutines.
(die_specification): Treat DW_AT_abstract_origin as a specification.
(read_type_die): Handle DW_TAG_inlined_subroutine.
* frame-unwind.c (frame_unwind_init): Add inline_frame_unwind.
* frame.c (fprint_frame_id): Print inline depth.
(fprint_frame_type): Handle INLINE_FRAME and SENTINEL_FRAME.
(skip_inlined_frames, get_stack_frame_id): New.
(frame_unwind_caller_id): Use skip_inlined_frames.
(frame_id_inlined_p): New.
(frame_id_eq): Make the logic match the comments. Add inline_depth
check.
(frame_id_inner): Handle inlined functions.
(frame_unwind_pc): New function, copied from frame_unwind_caller_pc.
(frame_unwind_caller_pc): Use skip_inlined_frames and frame_unwind_pc.
(get_prev_frame_1): Check for inline frames. Split out frame
allocation to get_prev_frame_raw.
(get_prev_frame_raw): New function.
(get_prev_frame): Handle inline frames.
(get_frame_pc): Use frame_unwind_pc.
(get_frame_address_in_block): Skip inlined frames on both sides.
(pc_notcurrent): Delete.
(find_frame_sal): Rewrite to handle inline call sites. Use
get_frame_address_in_block.
(deprecated_update_frame_pc_hack): Make static.
* frame.h: Update comments.
(struct frame_id): Add inline_depth.
(enum frame_type): Add INLINE_FRAME.
(frame_id_inlined_p, get_stack_frame_id): New prototypes.
* gdbthread.h (struct thread_info): Add step_stack_frame_id field.
* infcmd.c (set_step_frame): New function.
(step_once): Use set_step_frame. Handle inlined functions.
(until_next_command): Use set_step_frame.
(finish_backward), finish_forward): Use get_stack_frame_id.
(finish_command): Support inlined functions.
* inferior.h (set_step_info): New prototype.
* infrun.c (RESUME_ALL): Use minus_one_ptid.
(clear_proceed_status): Clear step_stack_frame_id.
(init_wait_for_inferior): Call clear_inline_frame_state.
(init_execution_control_state): Make static.
(set_step_info): New function.
(init_thread_stepping_state): Do not set the symtab or line here.
(stepped_in_from): New function.
(handle_inferior_event): Handle inlined functions. Use set_step_info.
(insert_step_resume_breakpoint_at_frame): Use get_stack_frame_id.
(struct inferior_status): Add step_stack_frame_id.
(save_inferior_status, restore_inferior_status): Save and restore
step_stack_frame_id.
* inline-frame.c, inline-frame.h: New files.
* minsyms.c (prim_record_minimal_symbol_and_info): Use XCALLOC.
* regcache.c (regcache_write_pc): Call reinit_frame_cache.
* s390-tdep.c (s390_prologue_frame_unwind_cache): Handle INLINE_FRAME.
* stack.c (frame_show_address): New.
(print_frame_info, print_frame): Use it.
(find_frame_funname): Use get_frame_function. Handle inlined blocks.
(frame_info): Mark inlined functions.
(backtrace_command_1): Use get_current_user_frame.
(print_frame_local_vars, print_frame_label_vars): Update comments.
(return_command): Refuse inlined functions.
* symtab.c (lookup_symbol_aux_local): Stop at inlined function
boundaries.
(find_function_start_sal): Avoid inlined functions.
(completion_list_add_fields): New function.
(default_make_symbol_completion_list): Use it. Use block_static_block
and block_global_block. Check for inlined functions.
(skip_prologue_using_sal): Avoid line number comparison across
inlining.
* symtab.h (struct symbol): Add is_inlined.
(SYMBOL_INLINED): New.
* target.c (target_resume): Call clear_inline_frame_state.
* valops.c (value_of_variable): Check block_inlined_p.
gdb/doc/
* gdb.texinfo (Debugging Optimized Code): New chapter.
(Compiling for Debugging): Reference it. Move some
text to the new section.
gdb/testsuite/
* gdb.base/break.exp: Add an XFAIL for gcc/36748.
* gdb.cp/annota2.exp: Accept frames-invalid in more places.
* gdb.opt/Makefile.in (EXECUTABLES): Update.
* gdb.opt/clobbered-registers-O2.exp: Update to GPL v3.
* gdb.opt/inline-bt.c, gdb.opt/inline-bt.exp,
gdb.opt/inline-cmds.c, gdb.opt/inline-cmds.exp,
gdb.opt/inline-locals.c, gdb.opt/inline-locals.exp,
gdb.opt/inline-markers.c: New files.
* lib/gdb.exp (skip_inline_frame_tests): New function.
(skip_inline_var_tests): New function.
2009-06-28 02:20:24 +02:00
|
|
|
|
#include "inline-frame.h"
|
2010-03-12 04:54:45 +01:00
|
|
|
|
#include "tracepoint.h"
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
#include "gdb/fileio.h"
|
2012-03-03 05:04:35 +01:00
|
|
|
|
#include "agent.h"
|
2013-12-19 15:56:20 +01:00
|
|
|
|
#include "auxv.h"
|
auto-generate most target debug methods
The target debug methods are inconsistently maintained. Most to_*
methods have some kind of targetdebug awareness, but not all of them
do. The ones that do vary in the quantity and quality of output they
generate.
This patch changes most of the target debug methods to be
automatically generated. All the arguments are printed, and separate
lines are printed for entering and existing the outermost call to the
target stack.
For example now you'd see:
-> multi-thread->to_terminal_ours (...)
-> multi-thread->to_is_async_p (...)
<- multi-thread->to_is_async_p (0x1ebb580) = 1
<- multi-thread->to_terminal_ours (0x1ebb580)
-> multi-thread->to_thread_address_space (...)
<- multi-thread->to_thread_address_space (0x1ebb580, 26802) = 1
In this case you can see nested calls. The "multi-thread" on the left
hand side is the topmost target's shortname.
There are some oddities with this patch. I'm on the fence about it
all, I really just wrote it on a whim.
It's not simple to convert every possible method, since a few don't
participate in target delegation.
Printing is done by type, so I introduced some new
debug-printing-specific typedefs to handle cases where it is nicer to
do something else.
On the plus side, this lays the groundwork for making targetdebug
affect every layer of the target stack. The idea would be to wrap
each target_ops in the stack with its own debug_target, and then you
could see calls propagate down the stack and back up; I suppose with
indentation to make it prettier. (That said there are some gotchas
lurking in this idea due to target stack introspection.)
Regtested on x86-64 Fedora 20.
2014-07-24 Tom Tromey <tromey@redhat.com>
* make-target-delegates (munge_type, write_debugmethod): New
functions.
(debug_names): New global.
($TARGET_DEBUG_PRINTER): New global.
(write_function_header): Strip TARGET_DEBUG_PRINTER from the type
name.
Write debug methods. Generate init_debug_target.
* target-debug.h: New file.
* target-delegates.c: Rebuild.
* target.c: Include target-debug.h.
(debug_target): Hoist definition.
(target_kill, target_get_section_table, target_memory_map)
(target_flash_erase, target_flash_done, target_detach)
(target_disconnect, target_wait, target_resume)
(target_pass_signals, target_program_signals, target_follow_fork)
(target_mourn_inferior, target_search_memory)
(target_thread_address_space, target_close)
(target_find_new_threads, target_core_of_thread)
(target_verify_memory, target_insert_mask_watchpoint)
(target_remove_mask_watchpoint): Remove targetdebug code.
(debug_to_post_attach, debug_to_prepare_to_store)
(debug_to_files_info, debug_to_insert_breakpoint)
(debug_to_remove_breakpoint, debug_to_can_use_hw_breakpoint)
(debug_to_region_ok_for_hw_watchpoint)
(debug_to_can_accel_watchpoint_condition)
(debug_to_stopped_by_watchpoint, debug_to_stopped_data_address)
(debug_to_watchpoint_addr_within_range)
(debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint)
(debug_to_insert_watchpoint, debug_to_remove_watchpoint)
(debug_to_terminal_init, debug_to_terminal_inferior)
(debug_to_terminal_ours_for_output, debug_to_terminal_ours)
(debug_to_terminal_save_ours, debug_to_terminal_info)
(debug_to_load, debug_to_post_startup_inferior)
(debug_to_insert_fork_catchpoint)
(debug_to_remove_fork_catchpoint)
(debug_to_insert_vfork_catchpoint)
(debug_to_remove_vfork_catchpoint)
(debug_to_insert_exec_catchpoint)
(debug_to_remove_exec_catchpoint, debug_to_has_exited)
(debug_to_can_run, debug_to_thread_architecture, debug_to_stop)
(debug_to_rcmd, debug_to_pid_to_exec_file): Remove.
(setup_target_debug): Call init_debug_target.
* target.h (TARGET_DEBUG_PRINTER): New macro.
(struct target_ops) <to_resume, to_wait, to_pass_signals,
to_program_signals>: Use TARGET_DEBUG_PRINTER.
2014-06-16 05:28:57 +02:00
|
|
|
|
#include "target-debug.h"
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2000-05-28 03:12:42 +02:00
|
|
|
|
static void target_info (char *, int);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2014-06-25 18:16:55 +02:00
|
|
|
|
static void generic_tls_error (void) ATTRIBUTE_NORETURN;
|
|
|
|
|
|
2013-12-18 05:31:14 +01:00
|
|
|
|
static void default_terminal_info (struct target_ops *, const char *, int);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2008-05-02 13:07:25 +02:00
|
|
|
|
static int default_watchpoint_addr_within_range (struct target_ops *,
|
|
|
|
|
CORE_ADDR, CORE_ADDR, int);
|
|
|
|
|
|
2013-12-18 05:29:45 +01:00
|
|
|
|
static int default_region_ok_for_hw_watchpoint (struct target_ops *,
|
|
|
|
|
CORE_ADDR, int);
|
2006-02-08 06:41:06 +01:00
|
|
|
|
|
2014-06-06 21:19:53 +02:00
|
|
|
|
static void default_rcmd (struct target_ops *, const char *, struct ui_file *);
|
2013-12-18 17:35:21 +01:00
|
|
|
|
|
2013-12-18 21:53:09 +01:00
|
|
|
|
static ptid_t default_get_ada_task_ptid (struct target_ops *self,
|
|
|
|
|
long lwp, long tid);
|
|
|
|
|
|
2013-12-18 22:38:04 +01:00
|
|
|
|
static int default_follow_fork (struct target_ops *self, int follow_child,
|
|
|
|
|
int detach_fork);
|
|
|
|
|
|
2013-12-18 22:40:23 +01:00
|
|
|
|
static void default_mourn_inferior (struct target_ops *self);
|
|
|
|
|
|
2013-12-19 16:12:26 +01:00
|
|
|
|
static int default_search_memory (struct target_ops *ops,
|
|
|
|
|
CORE_ADDR start_addr,
|
|
|
|
|
ULONGEST search_space_len,
|
|
|
|
|
const gdb_byte *pattern,
|
|
|
|
|
ULONGEST pattern_len,
|
|
|
|
|
CORE_ADDR *found_addrp);
|
|
|
|
|
|
Make compare-sections work against all targets; add compare-sections [-r] tests.
This does two things:
1. Adds a test.
Recently compare-sections got a new "-r" switch, but given no test
existed for compare-sections, the patch was allowed in with no
testsuite addition. This now adds a test for both compare-sections
and compare-sections -r.
2. Makes the compare-sections command work against all targets.
Currently, compare-sections only works with remote targets, and only
those that support the qCRC packet. The patch makes it so that if the
target doesn't support accelerating memory verification, then GDB
falls back to comparing memory itself. This is of course slower, but
it's better than nothing, IMO. While testing against extended-remote
GDBserver I noticed that we send the qCRC request to the target if
we're connected, but not yet running a program. That can't work of
course -- the patch fixes that. This all also goes in the direction
of bridging the local/remote parity gap.
I didn't decouple 1. from 2., because that would mean that the test
would need to handle the case of the target not supporting the
command.
Tested on x86_64 Fedora 17, native, remote GDBserver, and
extended-remote GDBserver. I also hack-disabled qCRC support to make
sure the fallback paths in remote.c work.
gdb/doc/
2014-05-20 Pedro Alves <palves@redhat.com>
* gdb.texinfo (Memory) <compare-sections>: Generalize comments to
not be remote specific. Add cross reference to the qCRC packet.
(Separate Debug Files): Update cross reference to the qCRC packet.
(General Query Packets) <qCRC packet>: Add anchor.
gdb/
2014-05-20 Pedro Alves <palves@redhat.com>
* NEWS: Mention that compare-sections now works with all targets.
* remote.c (PACKET_qCRC): New enum value.
(remote_verify_memory): Don't send qCRC if the target has no
execution. Use packet_support/packet_ok. If the target doesn't
support the qCRC packet, fallback to a deep memory copy.
(compare_sections_command): Say "target image" instead of "remote
executable".
(_initialize_remote): Add PACKET_qCRC to the list of config
packets that have no associated command. Extend comment.
* target.c (simple_verify_memory, default_verify_memory): New
function.
* target.h (struct target_ops) <to_verify_memory>: Default to
default_verify_memory.
(simple_verify_memory): New declaration.
* target-delegates.c: Regenerate.
gdb/testsuite/
2014-05-20 Pedro Alves <palves@redhat.com>
* gdb.base/compare-sections.c: New file.
* gdb.base/compare-sections.exp: New file.
2014-05-20 20:11:39 +02:00
|
|
|
|
static int default_verify_memory (struct target_ops *self,
|
|
|
|
|
const gdb_byte *data,
|
|
|
|
|
CORE_ADDR memaddr, ULONGEST size);
|
|
|
|
|
|
2014-02-21 18:33:42 +01:00
|
|
|
|
static struct address_space *default_thread_address_space
|
|
|
|
|
(struct target_ops *self, ptid_t ptid);
|
|
|
|
|
|
gdb/
* cli/cli-cmds.h (error_no_arg): Remove. Move the comment ...
* command.h (error_no_arg): ... here. Remove NORETURN, change
ATTR_NORETURN to ATTRIBUTE_NORETURN.
* defs.h (NORETURN, ATTR_NORETURN): Remove.
(perror_with_name, verror, error, error_stream, vfatal, fatal)
(internal_verror, internal_error, nomem): Remove NORETURN, change
ATTR_NORETURN to ATTRIBUTE_NORETURN.
* exceptions.c (throw_exception, deprecated_throw_reason, throw_verror)
(throw_vfatal, throw_error): Remove NORETURN.
(throw_it): Remove NORETURN, change ATTR_NORETURN to ATTRIBUTE_NORETURN.
* exceptions.h (throw_exception, throw_verror, throw_vfatal)
(throw_error, deprecated_throw_reason): Remove NORETURN, change
ATTR_NORETURN to ATTRIBUTE_NORETURN.
* linespec.c (cplusplus_error): Remove NORETURN, change ATTR_NORETURN
to ATTRIBUTE_NORETURN for prototype, for the definition only remove
NORETURN.
* remote-mips.c (mips_error): Change NORETURN to ATTRIBUTE_NORETURN.
* remote-sim.c (gdb_os_error): Change ATTR_NORETURN to
ATTRIBUTE_NORETURN.
* target.c (tcomplain): Likewise.
* target.h (noprocess): Remove NORETURN, change ATTR_NORETURN to
ATTRIBUTE_NORETURN.
* utils.c (verror, error, vfatal, fatal, error_stream, internal_verror)
(internal_error, perror_with_name, nomem): Remove NORETURN.
* xml-support.h (gdb_xml_error): Change ATTR_NORETURN to
ATTRIBUTE_NORETURN.
gdb/doc/
* gdbint.texinfo (Host Definition): Remove items NORETURN and
ATTR_NORETURN.
2010-05-03 01:52:14 +02:00
|
|
|
|
static void tcomplain (void) ATTRIBUTE_NORETURN;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2014-01-13 20:16:41 +01:00
|
|
|
|
static int return_zero (struct target_ops *);
|
|
|
|
|
|
|
|
|
|
static int return_zero_has_execution (struct target_ops *, ptid_t);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2000-05-28 03:12:42 +02:00
|
|
|
|
static void target_command (char *, int);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2000-05-28 03:12:42 +02:00
|
|
|
|
static struct target_ops *find_default_run_target (char *);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2009-07-02 19:06:44 +02:00
|
|
|
|
static struct gdbarch *default_thread_architecture (struct target_ops *ops,
|
|
|
|
|
ptid_t ptid);
|
|
|
|
|
|
2013-12-18 18:55:34 +01:00
|
|
|
|
static int dummy_find_memory_regions (struct target_ops *self,
|
|
|
|
|
find_memory_region_ftype ignore1,
|
|
|
|
|
void *ignore2);
|
|
|
|
|
|
2013-12-18 18:57:18 +01:00
|
|
|
|
static char *dummy_make_corefile_notes (struct target_ops *self,
|
|
|
|
|
bfd *ignore1, int *ignore2);
|
|
|
|
|
|
2013-12-18 22:46:03 +01:00
|
|
|
|
static char *default_pid_to_str (struct target_ops *ops, ptid_t ptid);
|
|
|
|
|
|
2013-12-18 19:15:21 +01:00
|
|
|
|
static enum exec_direction_kind default_execution_direction
|
|
|
|
|
(struct target_ops *self);
|
|
|
|
|
|
auto-generate most target debug methods
The target debug methods are inconsistently maintained. Most to_*
methods have some kind of targetdebug awareness, but not all of them
do. The ones that do vary in the quantity and quality of output they
generate.
This patch changes most of the target debug methods to be
automatically generated. All the arguments are printed, and separate
lines are printed for entering and existing the outermost call to the
target stack.
For example now you'd see:
-> multi-thread->to_terminal_ours (...)
-> multi-thread->to_is_async_p (...)
<- multi-thread->to_is_async_p (0x1ebb580) = 1
<- multi-thread->to_terminal_ours (0x1ebb580)
-> multi-thread->to_thread_address_space (...)
<- multi-thread->to_thread_address_space (0x1ebb580, 26802) = 1
In this case you can see nested calls. The "multi-thread" on the left
hand side is the topmost target's shortname.
There are some oddities with this patch. I'm on the fence about it
all, I really just wrote it on a whim.
It's not simple to convert every possible method, since a few don't
participate in target delegation.
Printing is done by type, so I introduced some new
debug-printing-specific typedefs to handle cases where it is nicer to
do something else.
On the plus side, this lays the groundwork for making targetdebug
affect every layer of the target stack. The idea would be to wrap
each target_ops in the stack with its own debug_target, and then you
could see calls propagate down the stack and back up; I suppose with
indentation to make it prettier. (That said there are some gotchas
lurking in this idea due to target stack introspection.)
Regtested on x86-64 Fedora 20.
2014-07-24 Tom Tromey <tromey@redhat.com>
* make-target-delegates (munge_type, write_debugmethod): New
functions.
(debug_names): New global.
($TARGET_DEBUG_PRINTER): New global.
(write_function_header): Strip TARGET_DEBUG_PRINTER from the type
name.
Write debug methods. Generate init_debug_target.
* target-debug.h: New file.
* target-delegates.c: Rebuild.
* target.c: Include target-debug.h.
(debug_target): Hoist definition.
(target_kill, target_get_section_table, target_memory_map)
(target_flash_erase, target_flash_done, target_detach)
(target_disconnect, target_wait, target_resume)
(target_pass_signals, target_program_signals, target_follow_fork)
(target_mourn_inferior, target_search_memory)
(target_thread_address_space, target_close)
(target_find_new_threads, target_core_of_thread)
(target_verify_memory, target_insert_mask_watchpoint)
(target_remove_mask_watchpoint): Remove targetdebug code.
(debug_to_post_attach, debug_to_prepare_to_store)
(debug_to_files_info, debug_to_insert_breakpoint)
(debug_to_remove_breakpoint, debug_to_can_use_hw_breakpoint)
(debug_to_region_ok_for_hw_watchpoint)
(debug_to_can_accel_watchpoint_condition)
(debug_to_stopped_by_watchpoint, debug_to_stopped_data_address)
(debug_to_watchpoint_addr_within_range)
(debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint)
(debug_to_insert_watchpoint, debug_to_remove_watchpoint)
(debug_to_terminal_init, debug_to_terminal_inferior)
(debug_to_terminal_ours_for_output, debug_to_terminal_ours)
(debug_to_terminal_save_ours, debug_to_terminal_info)
(debug_to_load, debug_to_post_startup_inferior)
(debug_to_insert_fork_catchpoint)
(debug_to_remove_fork_catchpoint)
(debug_to_insert_vfork_catchpoint)
(debug_to_remove_vfork_catchpoint)
(debug_to_insert_exec_catchpoint)
(debug_to_remove_exec_catchpoint, debug_to_has_exited)
(debug_to_can_run, debug_to_thread_architecture, debug_to_stop)
(debug_to_rcmd, debug_to_pid_to_exec_file): Remove.
(setup_target_debug): Call init_debug_target.
* target.h (TARGET_DEBUG_PRINTER): New macro.
(struct target_ops) <to_resume, to_wait, to_pass_signals,
to_program_signals>: Use TARGET_DEBUG_PRINTER.
2014-06-16 05:28:57 +02:00
|
|
|
|
static struct target_ops debug_target;
|
|
|
|
|
|
2013-12-19 17:38:11 +01:00
|
|
|
|
#include "target-delegates.c"
|
|
|
|
|
|
2000-05-28 03:12:42 +02:00
|
|
|
|
static void init_dummy_target (void);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2014-07-28 20:53:35 +02:00
|
|
|
|
static void update_current_target (void);
|
|
|
|
|
|
2014-08-15 22:34:34 +02:00
|
|
|
|
/* Vector of existing target structures. */
|
|
|
|
|
typedef struct target_ops *target_ops_p;
|
|
|
|
|
DEF_VEC_P (target_ops_p);
|
|
|
|
|
static VEC (target_ops_p) *target_structs;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
/* The initial current target, so that there is always a semi-valid
|
|
|
|
|
current target. */
|
|
|
|
|
|
|
|
|
|
static struct target_ops dummy_target;
|
|
|
|
|
|
|
|
|
|
/* Top of target stack. */
|
|
|
|
|
|
2003-10-17 15:59:27 +02:00
|
|
|
|
static struct target_ops *target_stack;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
/* The target structure we are currently using to talk to a process
|
|
|
|
|
or file or whatever "inferior" we have. */
|
|
|
|
|
|
|
|
|
|
struct target_ops current_target;
|
|
|
|
|
|
|
|
|
|
/* Command list for target. */
|
|
|
|
|
|
|
|
|
|
static struct cmd_list_element *targetlist = NULL;
|
|
|
|
|
|
2006-08-15 20:46:25 +02:00
|
|
|
|
/* Nonzero if we should trust readonly sections from the
|
|
|
|
|
executable when reading memory. */
|
|
|
|
|
|
|
|
|
|
static int trust_readonly = 0;
|
|
|
|
|
|
* breakpoint.h (breakpoint_restore_shadows): New
declaration.
* breakpoint.c (breakpoint_restore_shadows): New.
(read_memory_nobpt): Delete.
* gdbcore.h (read_memory_nobpt): Delete declaration.
* target.c (memory_xfer_partial): Call
breakpoint_restore_shadows.
(restore_show_memory_breakpoints)
(make_show_memory_beakpoints_cleanup): New.
(show_memory_breakpoints): New.
* target.h (make_show_memory_beakpoints_cleanup): Declare.
* ppc-linux-tdep.c (ppc_linux_memory_remove_breakpoint):
Make sure we see memory breakpoints when checking if
breakpoint is still there.
* alpha-tdep.c, alphanbsd-tdep.c, frame.c, frv-tdep.c,
hppa-linux-tdep.c, hppa-tdep.c, i386-linux-nat.c, i386-tdep.c,
m68klinux-tdep.c, mips-tdep.c, mn10300-tdep.c, s390-tdep.c,
sparc-tdep.c: Use target_read_memory instead of read_memory_nobpt.
2008-03-13 13:22:14 +01:00
|
|
|
|
/* Nonzero if we should show true memory content including
|
|
|
|
|
memory breakpoint inserted by gdb. */
|
|
|
|
|
|
|
|
|
|
static int show_memory_breakpoints = 0;
|
|
|
|
|
|
2010-06-12 02:05:22 +02:00
|
|
|
|
/* These globals control whether GDB attempts to perform these
|
|
|
|
|
operations; they are useful for targets that need to prevent
|
|
|
|
|
inadvertant disruption, such as in non-stop mode. */
|
|
|
|
|
|
|
|
|
|
int may_write_registers = 1;
|
|
|
|
|
|
|
|
|
|
int may_write_memory = 1;
|
|
|
|
|
|
|
|
|
|
int may_insert_breakpoints = 1;
|
|
|
|
|
|
|
|
|
|
int may_insert_tracepoints = 1;
|
|
|
|
|
|
|
|
|
|
int may_insert_fast_tracepoints = 1;
|
|
|
|
|
|
|
|
|
|
int may_stop = 1;
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
/* Non-zero if we want to see trace of target level stuff. */
|
|
|
|
|
|
2012-08-02 11:36:40 +02:00
|
|
|
|
static unsigned int targetdebug = 0;
|
2014-07-28 20:53:35 +02:00
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
set_targetdebug (char *args, int from_tty, struct cmd_list_element *c)
|
|
|
|
|
{
|
|
|
|
|
update_current_target ();
|
|
|
|
|
}
|
|
|
|
|
|
2005-02-24 Andrew Cagney <cagney@gnu.org>
Add show_VARIABLE functions, update add_setshow call.
* varobj.c (_initialize_varobj, show_varobjdebug): Add and update.
* valprint.c (_initialize_valprint, show_print_max)
(show_stop_print_at_null, show_repeat_count_threshold)
(show_prettyprint_structs, show_unionprint)
(show_prettyprint_arrays, show_addressprint, show_input_radix)
(show_output_radix): Ditto.
* valops.c (_initialize_valops, show_overload_resolution): Ditto.
* utils.c (initialize_utils, show_chars_per_line)
(show_lines_per_page, show_demangle, show_pagination_enabled)
(show_sevenbit_strings, show_asm_demangle): Ditto
* tui/tui-win.c (_initialize_tui_win, show_tui_border_kind)
(show_tui_border_mode, show_tui_active_border_mode): Ditto.
* top.c (init_main, show_new_async_prompt)
(show_async_command_editing_p, show_write_history_p)
(show_history_size, show_history_filename, show_caution)
(show_annotation_level, init_main): Ditto.
* target.c (initialize_targets, show_targetdebug)
(show_trust_readonly): Ditto.
* symfile.c (_initialize_symfile, show_symbol_reloading)
(show_ext_args, show_download_write_size)
(show_debug_file_directory): Ditto.
* source.c (_initialize_source, show_lines_to_list): Ditto.
* solib.c (_initialize_solib, show_auto_solib_add)
(show_solib_search_path): Ditto.
* p-valprint.c (_initialize_pascal_valprint)
(show_pascal_static_field_print): Ditto.
* printcmd.c (_initialize_printcmd, show_max_symbolic_offset)
(show_print_symbol_filename): Add and update.
* parse.c (_initialize_parse, show_expressiondebug): Dito.
* observer.c (_initialize_observer, show_observer_debug): Dito.
* maint.c (_initialize_maint_cmds, show_watchdog)
(show_maintenance_profile_p): Dito.
* linux-nat.c (_initialize_linux_nat, show_debug_linux_nat): Dito.
* infrun.c (_initialize_infrun, show_debug_infrun)
(show_stop_on_solib_events, show_follow_fork_mode_string)
(show_scheduler_mode, show_step_stop_if_no_debug): Ditto.
* infcall.c (_initialize_infcall, show_coerce_float_to_double_p)
(show_unwind_on_signal_p): Ditto.
* gdbtypes.c (build_gdbtypes, show_opaque_type_resolution)
(_initialize_gdbtypes, show_overload_debug): Ditto.
* gdb-events.c, gdb-events.sh (_initialize_gdb_events)
(show_gdb_events_debug): Ditto.
* gdbarch.c, gdbarch.sh (show_gdbarch_debug)
(_initialize_gdbarch): Ditto.
* frame.c (_initialize_frame, show_backtrace_past_main)
(show_backtrace_past_entry, show_backtrace_limit)
(show_frame_debug): Ditto.
* exec.c (_initialize_exec, show_write_files): Ditto.
* dwarf2read.c (_initialize_dwarf2_read)
(show_dwarf2_max_cache_age): Ditto.
* demangle.c (_initialize_demangler)
(show_demangling_style_names): Ditto.
* dcache.c (_initialize_dcache, show_dcache_enabled_p): Ditto.
* cp-valprint.c (show_static_field_print)
(_initialize_cp_valprint, show_vtblprint, show_objectprint): Ditto.
* corefile.c (_initialize_core, show_gnutarget_string): Ditto.
* cli/cli-logging.c (_initialize_cli_logging)
(show_logging_overwrite, show_logging_redirect)
(show_logging_filename): Ditto.
* cli/cli-cmds.c (show_info_verbose, show_history_expansion_p)
(init_cli_cmds, show_baud_rate, show_remote_debug)
(show_remote_timeout, show_max_user_call_depth): Ditto.
* charset.c (show_host_charset_name, show_target_charset_name)
(initialize_charset): Ditto.
* breakpoint.c (show_can_use_hw_watchpoints)
(show_pending_break_support, _initialize_breakpoint): Ditto.
2005-02-24 14:51:36 +01:00
|
|
|
|
static void
|
|
|
|
|
show_targetdebug (struct ui_file *file, int from_tty,
|
|
|
|
|
struct cmd_list_element *c, const char *value)
|
|
|
|
|
{
|
|
|
|
|
fprintf_filtered (file, _("Target debugging is %s.\n"), value);
|
|
|
|
|
}
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2000-05-28 03:12:42 +02:00
|
|
|
|
static void setup_target_debug (void);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
/* The user just typed 'target' without the name of a target. */
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
target_command (char *arg, int from_tty)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
fputs_filtered ("Argument required (target name). Try `help target'\n",
|
|
|
|
|
gdb_stdout);
|
|
|
|
|
}
|
|
|
|
|
|
* target.h (struct target_ops): Make to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
methods instead of variables.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1)
(target_has_registers_1, target_has_execution_1): Declare
functions.
(target_has_all_memory): Rewrite to call target_has_all_memory_1.
(target_has_memory): Rewrite to call target_has_memory_1.
(target_has_stack): Rewrite to call target_has_all_stack_1.
(target_has_registers): Rewrite to call target_has_registers_1.
(target_has_execution): Rewrite to call target_has_execution_1.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Declare.
(target_mark_running, target_mark_exited): Delete declarations.
* target.c (default_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution): New.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1,
target_has_registers_1, target_has_execution_1): New.
(add_target): Default the to_has_all_memory, to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
callbacks to return 0.
(update_current_target): Do not inherit to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers or to_has_execution.
(target_mark_running, target_mark_exited): Delete.
(memory_xfer_partial): Adjust.
(target_read_memory, target_write_memory, target_search_memory):
Dispatch to the the top-most target, not the flattened
current_target.
(target_info): Adjust.
(init_dummy_target): Install return_zero as callback for
to_has_all_memory, to_has_memory, to_has_stack, to_has_registers,
to_has_execution.
(set_maintenance_target_async_permitted): Use have_live_inferiors
instead of target_has_execution.
* target-memory.c (target_write_memory_blocks): Dispatch memory
writes to the the top-most target, not the flattened
current_target.
* breakpoint.c (insert_breakpoints): Don't check for
target_has_execution here.
(update_global_location_list): Check if there are live inferiors
to debug instead of target_has_execution.
* infcmd.c (kill_command, detach_command): Check if there are
inferiors instead of target_has_execution.
* inferior.h (have_live_inferiors): Declare.
* inferior.c (have_live_inferiors): New.
* infrun.c (normal_stop): Don't check for target_has_execution to
finish the thread states.
* thread.c (is_thread_state, is_stopped, is_exited, is_running)
(any_running, is_executing): Remove checks for
target_has_execution.
* top.c (kill_or_detach): Don't try to kill core inferiors.
(quit_target): Don't check for target_has_execution.
* corelow.c (core_has_memory, core_has_stack, core_has_registers):
New.
(init_core_ops): Install core_has_memory, core_has_stack and
core_has_registers.
* exec.c (exec_has_memory): New.
(init_exec_ops): Install exec_has_memory.
* remote.c (remote_add_inferior): Don't call target_mark_running.
(remote_start_remote): Don't call target_mark_exited or call
target_mark_running.
(remote_open_1): Use have_inferiors instead of
target_has_execution. Don't use target_mark_exited.
(init_remote_ops): Install deafult_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution.
* bsd-kvm.c (bsd_kvm_return_one): New.
(bsd_kvm_add_target): Register bsd_kvm_return_one as
to_has_memory, to_has_stack and to_has_registers callbacks.
* remote-m32r-sdi.c (m32r_return_one): New.
(init_m32r_ops): Register it.
* inf-child.c (inf_child_target): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* gnu-nat.c (init_gnu_ops): Likewise.
* go32-nat.c (init_go32_ops): Likewise.
* hpux-thread.c (init_hpux_thread_ops): Likewise.
* monitor.c (init_base_monitor_ops): Likewise.
* nto-procfs.c (init_procfs_ops): Likewise.
* remote-mips.c (_initialize_remote_mips): Likewise.
* windows-nat.c (init_windows_ops): Likewise.
* remote-sim.c (gdbsim_create_inferior): Don't use
target_mark_running or target_mark_exited.
(gdbsim_mourn_inferior): Don't call target_mark_exited.
(init_gdbsim_ops): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* linux-nat.c (linux_nat_xfer_partial): If reading memory, and
there's no inferior selected, defer to a lower stratum.
2009-06-07 18:46:48 +02:00
|
|
|
|
/* Default target_has_* methods for process_stratum targets. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
default_child_has_all_memory (struct target_ops *ops)
|
|
|
|
|
{
|
|
|
|
|
/* If no inferior selected, then we can't read memory here. */
|
|
|
|
|
if (ptid_equal (inferior_ptid, null_ptid))
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
default_child_has_memory (struct target_ops *ops)
|
|
|
|
|
{
|
|
|
|
|
/* If no inferior selected, then we can't read memory here. */
|
|
|
|
|
if (ptid_equal (inferior_ptid, null_ptid))
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
default_child_has_stack (struct target_ops *ops)
|
|
|
|
|
{
|
|
|
|
|
/* If no inferior selected, there's no stack. */
|
|
|
|
|
if (ptid_equal (inferior_ptid, null_ptid))
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
default_child_has_registers (struct target_ops *ops)
|
|
|
|
|
{
|
|
|
|
|
/* Can't read registers from no inferior. */
|
|
|
|
|
if (ptid_equal (inferior_ptid, null_ptid))
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
2011-03-07 16:58:13 +01:00
|
|
|
|
default_child_has_execution (struct target_ops *ops, ptid_t the_ptid)
|
* target.h (struct target_ops): Make to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
methods instead of variables.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1)
(target_has_registers_1, target_has_execution_1): Declare
functions.
(target_has_all_memory): Rewrite to call target_has_all_memory_1.
(target_has_memory): Rewrite to call target_has_memory_1.
(target_has_stack): Rewrite to call target_has_all_stack_1.
(target_has_registers): Rewrite to call target_has_registers_1.
(target_has_execution): Rewrite to call target_has_execution_1.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Declare.
(target_mark_running, target_mark_exited): Delete declarations.
* target.c (default_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution): New.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1,
target_has_registers_1, target_has_execution_1): New.
(add_target): Default the to_has_all_memory, to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
callbacks to return 0.
(update_current_target): Do not inherit to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers or to_has_execution.
(target_mark_running, target_mark_exited): Delete.
(memory_xfer_partial): Adjust.
(target_read_memory, target_write_memory, target_search_memory):
Dispatch to the the top-most target, not the flattened
current_target.
(target_info): Adjust.
(init_dummy_target): Install return_zero as callback for
to_has_all_memory, to_has_memory, to_has_stack, to_has_registers,
to_has_execution.
(set_maintenance_target_async_permitted): Use have_live_inferiors
instead of target_has_execution.
* target-memory.c (target_write_memory_blocks): Dispatch memory
writes to the the top-most target, not the flattened
current_target.
* breakpoint.c (insert_breakpoints): Don't check for
target_has_execution here.
(update_global_location_list): Check if there are live inferiors
to debug instead of target_has_execution.
* infcmd.c (kill_command, detach_command): Check if there are
inferiors instead of target_has_execution.
* inferior.h (have_live_inferiors): Declare.
* inferior.c (have_live_inferiors): New.
* infrun.c (normal_stop): Don't check for target_has_execution to
finish the thread states.
* thread.c (is_thread_state, is_stopped, is_exited, is_running)
(any_running, is_executing): Remove checks for
target_has_execution.
* top.c (kill_or_detach): Don't try to kill core inferiors.
(quit_target): Don't check for target_has_execution.
* corelow.c (core_has_memory, core_has_stack, core_has_registers):
New.
(init_core_ops): Install core_has_memory, core_has_stack and
core_has_registers.
* exec.c (exec_has_memory): New.
(init_exec_ops): Install exec_has_memory.
* remote.c (remote_add_inferior): Don't call target_mark_running.
(remote_start_remote): Don't call target_mark_exited or call
target_mark_running.
(remote_open_1): Use have_inferiors instead of
target_has_execution. Don't use target_mark_exited.
(init_remote_ops): Install deafult_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution.
* bsd-kvm.c (bsd_kvm_return_one): New.
(bsd_kvm_add_target): Register bsd_kvm_return_one as
to_has_memory, to_has_stack and to_has_registers callbacks.
* remote-m32r-sdi.c (m32r_return_one): New.
(init_m32r_ops): Register it.
* inf-child.c (inf_child_target): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* gnu-nat.c (init_gnu_ops): Likewise.
* go32-nat.c (init_go32_ops): Likewise.
* hpux-thread.c (init_hpux_thread_ops): Likewise.
* monitor.c (init_base_monitor_ops): Likewise.
* nto-procfs.c (init_procfs_ops): Likewise.
* remote-mips.c (_initialize_remote_mips): Likewise.
* windows-nat.c (init_windows_ops): Likewise.
* remote-sim.c (gdbsim_create_inferior): Don't use
target_mark_running or target_mark_exited.
(gdbsim_mourn_inferior): Don't call target_mark_exited.
(init_gdbsim_ops): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* linux-nat.c (linux_nat_xfer_partial): If reading memory, and
there's no inferior selected, defer to a lower stratum.
2009-06-07 18:46:48 +02:00
|
|
|
|
{
|
|
|
|
|
/* If there's no thread selected, then we can't make it run through
|
|
|
|
|
hoops. */
|
2011-03-07 16:58:13 +01:00
|
|
|
|
if (ptid_equal (the_ptid, null_ptid))
|
* target.h (struct target_ops): Make to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
methods instead of variables.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1)
(target_has_registers_1, target_has_execution_1): Declare
functions.
(target_has_all_memory): Rewrite to call target_has_all_memory_1.
(target_has_memory): Rewrite to call target_has_memory_1.
(target_has_stack): Rewrite to call target_has_all_stack_1.
(target_has_registers): Rewrite to call target_has_registers_1.
(target_has_execution): Rewrite to call target_has_execution_1.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Declare.
(target_mark_running, target_mark_exited): Delete declarations.
* target.c (default_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution): New.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1,
target_has_registers_1, target_has_execution_1): New.
(add_target): Default the to_has_all_memory, to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
callbacks to return 0.
(update_current_target): Do not inherit to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers or to_has_execution.
(target_mark_running, target_mark_exited): Delete.
(memory_xfer_partial): Adjust.
(target_read_memory, target_write_memory, target_search_memory):
Dispatch to the the top-most target, not the flattened
current_target.
(target_info): Adjust.
(init_dummy_target): Install return_zero as callback for
to_has_all_memory, to_has_memory, to_has_stack, to_has_registers,
to_has_execution.
(set_maintenance_target_async_permitted): Use have_live_inferiors
instead of target_has_execution.
* target-memory.c (target_write_memory_blocks): Dispatch memory
writes to the the top-most target, not the flattened
current_target.
* breakpoint.c (insert_breakpoints): Don't check for
target_has_execution here.
(update_global_location_list): Check if there are live inferiors
to debug instead of target_has_execution.
* infcmd.c (kill_command, detach_command): Check if there are
inferiors instead of target_has_execution.
* inferior.h (have_live_inferiors): Declare.
* inferior.c (have_live_inferiors): New.
* infrun.c (normal_stop): Don't check for target_has_execution to
finish the thread states.
* thread.c (is_thread_state, is_stopped, is_exited, is_running)
(any_running, is_executing): Remove checks for
target_has_execution.
* top.c (kill_or_detach): Don't try to kill core inferiors.
(quit_target): Don't check for target_has_execution.
* corelow.c (core_has_memory, core_has_stack, core_has_registers):
New.
(init_core_ops): Install core_has_memory, core_has_stack and
core_has_registers.
* exec.c (exec_has_memory): New.
(init_exec_ops): Install exec_has_memory.
* remote.c (remote_add_inferior): Don't call target_mark_running.
(remote_start_remote): Don't call target_mark_exited or call
target_mark_running.
(remote_open_1): Use have_inferiors instead of
target_has_execution. Don't use target_mark_exited.
(init_remote_ops): Install deafult_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution.
* bsd-kvm.c (bsd_kvm_return_one): New.
(bsd_kvm_add_target): Register bsd_kvm_return_one as
to_has_memory, to_has_stack and to_has_registers callbacks.
* remote-m32r-sdi.c (m32r_return_one): New.
(init_m32r_ops): Register it.
* inf-child.c (inf_child_target): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* gnu-nat.c (init_gnu_ops): Likewise.
* go32-nat.c (init_go32_ops): Likewise.
* hpux-thread.c (init_hpux_thread_ops): Likewise.
* monitor.c (init_base_monitor_ops): Likewise.
* nto-procfs.c (init_procfs_ops): Likewise.
* remote-mips.c (_initialize_remote_mips): Likewise.
* windows-nat.c (init_windows_ops): Likewise.
* remote-sim.c (gdbsim_create_inferior): Don't use
target_mark_running or target_mark_exited.
(gdbsim_mourn_inferior): Don't call target_mark_exited.
(init_gdbsim_ops): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* linux-nat.c (linux_nat_xfer_partial): If reading memory, and
there's no inferior selected, defer to a lower stratum.
2009-06-07 18:46:48 +02:00
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
target_has_all_memory_1 (void)
|
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
|
|
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
|
|
|
|
if (t->to_has_all_memory (t))
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
target_has_memory_1 (void)
|
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
|
|
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
|
|
|
|
if (t->to_has_memory (t))
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
target_has_stack_1 (void)
|
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
|
|
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
|
|
|
|
if (t->to_has_stack (t))
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
target_has_registers_1 (void)
|
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
|
|
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
|
|
|
|
if (t->to_has_registers (t))
|
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
2011-03-07 16:58:13 +01:00
|
|
|
|
target_has_execution_1 (ptid_t the_ptid)
|
* target.h (struct target_ops): Make to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
methods instead of variables.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1)
(target_has_registers_1, target_has_execution_1): Declare
functions.
(target_has_all_memory): Rewrite to call target_has_all_memory_1.
(target_has_memory): Rewrite to call target_has_memory_1.
(target_has_stack): Rewrite to call target_has_all_stack_1.
(target_has_registers): Rewrite to call target_has_registers_1.
(target_has_execution): Rewrite to call target_has_execution_1.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Declare.
(target_mark_running, target_mark_exited): Delete declarations.
* target.c (default_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution): New.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1,
target_has_registers_1, target_has_execution_1): New.
(add_target): Default the to_has_all_memory, to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
callbacks to return 0.
(update_current_target): Do not inherit to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers or to_has_execution.
(target_mark_running, target_mark_exited): Delete.
(memory_xfer_partial): Adjust.
(target_read_memory, target_write_memory, target_search_memory):
Dispatch to the the top-most target, not the flattened
current_target.
(target_info): Adjust.
(init_dummy_target): Install return_zero as callback for
to_has_all_memory, to_has_memory, to_has_stack, to_has_registers,
to_has_execution.
(set_maintenance_target_async_permitted): Use have_live_inferiors
instead of target_has_execution.
* target-memory.c (target_write_memory_blocks): Dispatch memory
writes to the the top-most target, not the flattened
current_target.
* breakpoint.c (insert_breakpoints): Don't check for
target_has_execution here.
(update_global_location_list): Check if there are live inferiors
to debug instead of target_has_execution.
* infcmd.c (kill_command, detach_command): Check if there are
inferiors instead of target_has_execution.
* inferior.h (have_live_inferiors): Declare.
* inferior.c (have_live_inferiors): New.
* infrun.c (normal_stop): Don't check for target_has_execution to
finish the thread states.
* thread.c (is_thread_state, is_stopped, is_exited, is_running)
(any_running, is_executing): Remove checks for
target_has_execution.
* top.c (kill_or_detach): Don't try to kill core inferiors.
(quit_target): Don't check for target_has_execution.
* corelow.c (core_has_memory, core_has_stack, core_has_registers):
New.
(init_core_ops): Install core_has_memory, core_has_stack and
core_has_registers.
* exec.c (exec_has_memory): New.
(init_exec_ops): Install exec_has_memory.
* remote.c (remote_add_inferior): Don't call target_mark_running.
(remote_start_remote): Don't call target_mark_exited or call
target_mark_running.
(remote_open_1): Use have_inferiors instead of
target_has_execution. Don't use target_mark_exited.
(init_remote_ops): Install deafult_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution.
* bsd-kvm.c (bsd_kvm_return_one): New.
(bsd_kvm_add_target): Register bsd_kvm_return_one as
to_has_memory, to_has_stack and to_has_registers callbacks.
* remote-m32r-sdi.c (m32r_return_one): New.
(init_m32r_ops): Register it.
* inf-child.c (inf_child_target): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* gnu-nat.c (init_gnu_ops): Likewise.
* go32-nat.c (init_go32_ops): Likewise.
* hpux-thread.c (init_hpux_thread_ops): Likewise.
* monitor.c (init_base_monitor_ops): Likewise.
* nto-procfs.c (init_procfs_ops): Likewise.
* remote-mips.c (_initialize_remote_mips): Likewise.
* windows-nat.c (init_windows_ops): Likewise.
* remote-sim.c (gdbsim_create_inferior): Don't use
target_mark_running or target_mark_exited.
(gdbsim_mourn_inferior): Don't call target_mark_exited.
(init_gdbsim_ops): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* linux-nat.c (linux_nat_xfer_partial): If reading memory, and
there's no inferior selected, defer to a lower stratum.
2009-06-07 18:46:48 +02:00
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
|
|
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
2011-03-07 16:58:13 +01:00
|
|
|
|
if (t->to_has_execution (t, the_ptid))
|
* target.h (struct target_ops): Make to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
methods instead of variables.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1)
(target_has_registers_1, target_has_execution_1): Declare
functions.
(target_has_all_memory): Rewrite to call target_has_all_memory_1.
(target_has_memory): Rewrite to call target_has_memory_1.
(target_has_stack): Rewrite to call target_has_all_stack_1.
(target_has_registers): Rewrite to call target_has_registers_1.
(target_has_execution): Rewrite to call target_has_execution_1.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Declare.
(target_mark_running, target_mark_exited): Delete declarations.
* target.c (default_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution): New.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1,
target_has_registers_1, target_has_execution_1): New.
(add_target): Default the to_has_all_memory, to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
callbacks to return 0.
(update_current_target): Do not inherit to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers or to_has_execution.
(target_mark_running, target_mark_exited): Delete.
(memory_xfer_partial): Adjust.
(target_read_memory, target_write_memory, target_search_memory):
Dispatch to the the top-most target, not the flattened
current_target.
(target_info): Adjust.
(init_dummy_target): Install return_zero as callback for
to_has_all_memory, to_has_memory, to_has_stack, to_has_registers,
to_has_execution.
(set_maintenance_target_async_permitted): Use have_live_inferiors
instead of target_has_execution.
* target-memory.c (target_write_memory_blocks): Dispatch memory
writes to the the top-most target, not the flattened
current_target.
* breakpoint.c (insert_breakpoints): Don't check for
target_has_execution here.
(update_global_location_list): Check if there are live inferiors
to debug instead of target_has_execution.
* infcmd.c (kill_command, detach_command): Check if there are
inferiors instead of target_has_execution.
* inferior.h (have_live_inferiors): Declare.
* inferior.c (have_live_inferiors): New.
* infrun.c (normal_stop): Don't check for target_has_execution to
finish the thread states.
* thread.c (is_thread_state, is_stopped, is_exited, is_running)
(any_running, is_executing): Remove checks for
target_has_execution.
* top.c (kill_or_detach): Don't try to kill core inferiors.
(quit_target): Don't check for target_has_execution.
* corelow.c (core_has_memory, core_has_stack, core_has_registers):
New.
(init_core_ops): Install core_has_memory, core_has_stack and
core_has_registers.
* exec.c (exec_has_memory): New.
(init_exec_ops): Install exec_has_memory.
* remote.c (remote_add_inferior): Don't call target_mark_running.
(remote_start_remote): Don't call target_mark_exited or call
target_mark_running.
(remote_open_1): Use have_inferiors instead of
target_has_execution. Don't use target_mark_exited.
(init_remote_ops): Install deafult_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution.
* bsd-kvm.c (bsd_kvm_return_one): New.
(bsd_kvm_add_target): Register bsd_kvm_return_one as
to_has_memory, to_has_stack and to_has_registers callbacks.
* remote-m32r-sdi.c (m32r_return_one): New.
(init_m32r_ops): Register it.
* inf-child.c (inf_child_target): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* gnu-nat.c (init_gnu_ops): Likewise.
* go32-nat.c (init_go32_ops): Likewise.
* hpux-thread.c (init_hpux_thread_ops): Likewise.
* monitor.c (init_base_monitor_ops): Likewise.
* nto-procfs.c (init_procfs_ops): Likewise.
* remote-mips.c (_initialize_remote_mips): Likewise.
* windows-nat.c (init_windows_ops): Likewise.
* remote-sim.c (gdbsim_create_inferior): Don't use
target_mark_running or target_mark_exited.
(gdbsim_mourn_inferior): Don't call target_mark_exited.
(init_gdbsim_ops): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* linux-nat.c (linux_nat_xfer_partial): If reading memory, and
there's no inferior selected, defer to a lower stratum.
2009-06-07 18:46:48 +02:00
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2011-03-07 16:58:13 +01:00
|
|
|
|
int
|
|
|
|
|
target_has_execution_current (void)
|
|
|
|
|
{
|
|
|
|
|
return target_has_execution_1 (inferior_ptid);
|
|
|
|
|
}
|
|
|
|
|
|
2013-07-25 16:28:15 +02:00
|
|
|
|
/* Complete initialization of T. This ensures that various fields in
|
|
|
|
|
T are set, if needed by the target implementation. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
void
|
2013-07-25 16:28:15 +02:00
|
|
|
|
complete_target_initialization (struct target_ops *t)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2003-10-23 02:13:53 +02:00
|
|
|
|
/* Provide default values for all "must have" methods. */
|
|
|
|
|
|
* target.h (struct target_ops): Make to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
methods instead of variables.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1)
(target_has_registers_1, target_has_execution_1): Declare
functions.
(target_has_all_memory): Rewrite to call target_has_all_memory_1.
(target_has_memory): Rewrite to call target_has_memory_1.
(target_has_stack): Rewrite to call target_has_all_stack_1.
(target_has_registers): Rewrite to call target_has_registers_1.
(target_has_execution): Rewrite to call target_has_execution_1.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Declare.
(target_mark_running, target_mark_exited): Delete declarations.
* target.c (default_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution): New.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1,
target_has_registers_1, target_has_execution_1): New.
(add_target): Default the to_has_all_memory, to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
callbacks to return 0.
(update_current_target): Do not inherit to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers or to_has_execution.
(target_mark_running, target_mark_exited): Delete.
(memory_xfer_partial): Adjust.
(target_read_memory, target_write_memory, target_search_memory):
Dispatch to the the top-most target, not the flattened
current_target.
(target_info): Adjust.
(init_dummy_target): Install return_zero as callback for
to_has_all_memory, to_has_memory, to_has_stack, to_has_registers,
to_has_execution.
(set_maintenance_target_async_permitted): Use have_live_inferiors
instead of target_has_execution.
* target-memory.c (target_write_memory_blocks): Dispatch memory
writes to the the top-most target, not the flattened
current_target.
* breakpoint.c (insert_breakpoints): Don't check for
target_has_execution here.
(update_global_location_list): Check if there are live inferiors
to debug instead of target_has_execution.
* infcmd.c (kill_command, detach_command): Check if there are
inferiors instead of target_has_execution.
* inferior.h (have_live_inferiors): Declare.
* inferior.c (have_live_inferiors): New.
* infrun.c (normal_stop): Don't check for target_has_execution to
finish the thread states.
* thread.c (is_thread_state, is_stopped, is_exited, is_running)
(any_running, is_executing): Remove checks for
target_has_execution.
* top.c (kill_or_detach): Don't try to kill core inferiors.
(quit_target): Don't check for target_has_execution.
* corelow.c (core_has_memory, core_has_stack, core_has_registers):
New.
(init_core_ops): Install core_has_memory, core_has_stack and
core_has_registers.
* exec.c (exec_has_memory): New.
(init_exec_ops): Install exec_has_memory.
* remote.c (remote_add_inferior): Don't call target_mark_running.
(remote_start_remote): Don't call target_mark_exited or call
target_mark_running.
(remote_open_1): Use have_inferiors instead of
target_has_execution. Don't use target_mark_exited.
(init_remote_ops): Install deafult_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution.
* bsd-kvm.c (bsd_kvm_return_one): New.
(bsd_kvm_add_target): Register bsd_kvm_return_one as
to_has_memory, to_has_stack and to_has_registers callbacks.
* remote-m32r-sdi.c (m32r_return_one): New.
(init_m32r_ops): Register it.
* inf-child.c (inf_child_target): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* gnu-nat.c (init_gnu_ops): Likewise.
* go32-nat.c (init_go32_ops): Likewise.
* hpux-thread.c (init_hpux_thread_ops): Likewise.
* monitor.c (init_base_monitor_ops): Likewise.
* nto-procfs.c (init_procfs_ops): Likewise.
* remote-mips.c (_initialize_remote_mips): Likewise.
* windows-nat.c (init_windows_ops): Likewise.
* remote-sim.c (gdbsim_create_inferior): Don't use
target_mark_running or target_mark_exited.
(gdbsim_mourn_inferior): Don't call target_mark_exited.
(init_gdbsim_ops): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* linux-nat.c (linux_nat_xfer_partial): If reading memory, and
there's no inferior selected, defer to a lower stratum.
2009-06-07 18:46:48 +02:00
|
|
|
|
if (t->to_has_all_memory == NULL)
|
2014-01-13 20:16:41 +01:00
|
|
|
|
t->to_has_all_memory = return_zero;
|
* target.h (struct target_ops): Make to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
methods instead of variables.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1)
(target_has_registers_1, target_has_execution_1): Declare
functions.
(target_has_all_memory): Rewrite to call target_has_all_memory_1.
(target_has_memory): Rewrite to call target_has_memory_1.
(target_has_stack): Rewrite to call target_has_all_stack_1.
(target_has_registers): Rewrite to call target_has_registers_1.
(target_has_execution): Rewrite to call target_has_execution_1.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Declare.
(target_mark_running, target_mark_exited): Delete declarations.
* target.c (default_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution): New.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1,
target_has_registers_1, target_has_execution_1): New.
(add_target): Default the to_has_all_memory, to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
callbacks to return 0.
(update_current_target): Do not inherit to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers or to_has_execution.
(target_mark_running, target_mark_exited): Delete.
(memory_xfer_partial): Adjust.
(target_read_memory, target_write_memory, target_search_memory):
Dispatch to the the top-most target, not the flattened
current_target.
(target_info): Adjust.
(init_dummy_target): Install return_zero as callback for
to_has_all_memory, to_has_memory, to_has_stack, to_has_registers,
to_has_execution.
(set_maintenance_target_async_permitted): Use have_live_inferiors
instead of target_has_execution.
* target-memory.c (target_write_memory_blocks): Dispatch memory
writes to the the top-most target, not the flattened
current_target.
* breakpoint.c (insert_breakpoints): Don't check for
target_has_execution here.
(update_global_location_list): Check if there are live inferiors
to debug instead of target_has_execution.
* infcmd.c (kill_command, detach_command): Check if there are
inferiors instead of target_has_execution.
* inferior.h (have_live_inferiors): Declare.
* inferior.c (have_live_inferiors): New.
* infrun.c (normal_stop): Don't check for target_has_execution to
finish the thread states.
* thread.c (is_thread_state, is_stopped, is_exited, is_running)
(any_running, is_executing): Remove checks for
target_has_execution.
* top.c (kill_or_detach): Don't try to kill core inferiors.
(quit_target): Don't check for target_has_execution.
* corelow.c (core_has_memory, core_has_stack, core_has_registers):
New.
(init_core_ops): Install core_has_memory, core_has_stack and
core_has_registers.
* exec.c (exec_has_memory): New.
(init_exec_ops): Install exec_has_memory.
* remote.c (remote_add_inferior): Don't call target_mark_running.
(remote_start_remote): Don't call target_mark_exited or call
target_mark_running.
(remote_open_1): Use have_inferiors instead of
target_has_execution. Don't use target_mark_exited.
(init_remote_ops): Install deafult_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution.
* bsd-kvm.c (bsd_kvm_return_one): New.
(bsd_kvm_add_target): Register bsd_kvm_return_one as
to_has_memory, to_has_stack and to_has_registers callbacks.
* remote-m32r-sdi.c (m32r_return_one): New.
(init_m32r_ops): Register it.
* inf-child.c (inf_child_target): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* gnu-nat.c (init_gnu_ops): Likewise.
* go32-nat.c (init_go32_ops): Likewise.
* hpux-thread.c (init_hpux_thread_ops): Likewise.
* monitor.c (init_base_monitor_ops): Likewise.
* nto-procfs.c (init_procfs_ops): Likewise.
* remote-mips.c (_initialize_remote_mips): Likewise.
* windows-nat.c (init_windows_ops): Likewise.
* remote-sim.c (gdbsim_create_inferior): Don't use
target_mark_running or target_mark_exited.
(gdbsim_mourn_inferior): Don't call target_mark_exited.
(init_gdbsim_ops): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* linux-nat.c (linux_nat_xfer_partial): If reading memory, and
there's no inferior selected, defer to a lower stratum.
2009-06-07 18:46:48 +02:00
|
|
|
|
|
|
|
|
|
if (t->to_has_memory == NULL)
|
2014-01-13 20:16:41 +01:00
|
|
|
|
t->to_has_memory = return_zero;
|
* target.h (struct target_ops): Make to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
methods instead of variables.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1)
(target_has_registers_1, target_has_execution_1): Declare
functions.
(target_has_all_memory): Rewrite to call target_has_all_memory_1.
(target_has_memory): Rewrite to call target_has_memory_1.
(target_has_stack): Rewrite to call target_has_all_stack_1.
(target_has_registers): Rewrite to call target_has_registers_1.
(target_has_execution): Rewrite to call target_has_execution_1.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Declare.
(target_mark_running, target_mark_exited): Delete declarations.
* target.c (default_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution): New.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1,
target_has_registers_1, target_has_execution_1): New.
(add_target): Default the to_has_all_memory, to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
callbacks to return 0.
(update_current_target): Do not inherit to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers or to_has_execution.
(target_mark_running, target_mark_exited): Delete.
(memory_xfer_partial): Adjust.
(target_read_memory, target_write_memory, target_search_memory):
Dispatch to the the top-most target, not the flattened
current_target.
(target_info): Adjust.
(init_dummy_target): Install return_zero as callback for
to_has_all_memory, to_has_memory, to_has_stack, to_has_registers,
to_has_execution.
(set_maintenance_target_async_permitted): Use have_live_inferiors
instead of target_has_execution.
* target-memory.c (target_write_memory_blocks): Dispatch memory
writes to the the top-most target, not the flattened
current_target.
* breakpoint.c (insert_breakpoints): Don't check for
target_has_execution here.
(update_global_location_list): Check if there are live inferiors
to debug instead of target_has_execution.
* infcmd.c (kill_command, detach_command): Check if there are
inferiors instead of target_has_execution.
* inferior.h (have_live_inferiors): Declare.
* inferior.c (have_live_inferiors): New.
* infrun.c (normal_stop): Don't check for target_has_execution to
finish the thread states.
* thread.c (is_thread_state, is_stopped, is_exited, is_running)
(any_running, is_executing): Remove checks for
target_has_execution.
* top.c (kill_or_detach): Don't try to kill core inferiors.
(quit_target): Don't check for target_has_execution.
* corelow.c (core_has_memory, core_has_stack, core_has_registers):
New.
(init_core_ops): Install core_has_memory, core_has_stack and
core_has_registers.
* exec.c (exec_has_memory): New.
(init_exec_ops): Install exec_has_memory.
* remote.c (remote_add_inferior): Don't call target_mark_running.
(remote_start_remote): Don't call target_mark_exited or call
target_mark_running.
(remote_open_1): Use have_inferiors instead of
target_has_execution. Don't use target_mark_exited.
(init_remote_ops): Install deafult_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution.
* bsd-kvm.c (bsd_kvm_return_one): New.
(bsd_kvm_add_target): Register bsd_kvm_return_one as
to_has_memory, to_has_stack and to_has_registers callbacks.
* remote-m32r-sdi.c (m32r_return_one): New.
(init_m32r_ops): Register it.
* inf-child.c (inf_child_target): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* gnu-nat.c (init_gnu_ops): Likewise.
* go32-nat.c (init_go32_ops): Likewise.
* hpux-thread.c (init_hpux_thread_ops): Likewise.
* monitor.c (init_base_monitor_ops): Likewise.
* nto-procfs.c (init_procfs_ops): Likewise.
* remote-mips.c (_initialize_remote_mips): Likewise.
* windows-nat.c (init_windows_ops): Likewise.
* remote-sim.c (gdbsim_create_inferior): Don't use
target_mark_running or target_mark_exited.
(gdbsim_mourn_inferior): Don't call target_mark_exited.
(init_gdbsim_ops): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* linux-nat.c (linux_nat_xfer_partial): If reading memory, and
there's no inferior selected, defer to a lower stratum.
2009-06-07 18:46:48 +02:00
|
|
|
|
|
|
|
|
|
if (t->to_has_stack == NULL)
|
2014-01-13 20:16:41 +01:00
|
|
|
|
t->to_has_stack = return_zero;
|
* target.h (struct target_ops): Make to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
methods instead of variables.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1)
(target_has_registers_1, target_has_execution_1): Declare
functions.
(target_has_all_memory): Rewrite to call target_has_all_memory_1.
(target_has_memory): Rewrite to call target_has_memory_1.
(target_has_stack): Rewrite to call target_has_all_stack_1.
(target_has_registers): Rewrite to call target_has_registers_1.
(target_has_execution): Rewrite to call target_has_execution_1.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Declare.
(target_mark_running, target_mark_exited): Delete declarations.
* target.c (default_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution): New.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1,
target_has_registers_1, target_has_execution_1): New.
(add_target): Default the to_has_all_memory, to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
callbacks to return 0.
(update_current_target): Do not inherit to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers or to_has_execution.
(target_mark_running, target_mark_exited): Delete.
(memory_xfer_partial): Adjust.
(target_read_memory, target_write_memory, target_search_memory):
Dispatch to the the top-most target, not the flattened
current_target.
(target_info): Adjust.
(init_dummy_target): Install return_zero as callback for
to_has_all_memory, to_has_memory, to_has_stack, to_has_registers,
to_has_execution.
(set_maintenance_target_async_permitted): Use have_live_inferiors
instead of target_has_execution.
* target-memory.c (target_write_memory_blocks): Dispatch memory
writes to the the top-most target, not the flattened
current_target.
* breakpoint.c (insert_breakpoints): Don't check for
target_has_execution here.
(update_global_location_list): Check if there are live inferiors
to debug instead of target_has_execution.
* infcmd.c (kill_command, detach_command): Check if there are
inferiors instead of target_has_execution.
* inferior.h (have_live_inferiors): Declare.
* inferior.c (have_live_inferiors): New.
* infrun.c (normal_stop): Don't check for target_has_execution to
finish the thread states.
* thread.c (is_thread_state, is_stopped, is_exited, is_running)
(any_running, is_executing): Remove checks for
target_has_execution.
* top.c (kill_or_detach): Don't try to kill core inferiors.
(quit_target): Don't check for target_has_execution.
* corelow.c (core_has_memory, core_has_stack, core_has_registers):
New.
(init_core_ops): Install core_has_memory, core_has_stack and
core_has_registers.
* exec.c (exec_has_memory): New.
(init_exec_ops): Install exec_has_memory.
* remote.c (remote_add_inferior): Don't call target_mark_running.
(remote_start_remote): Don't call target_mark_exited or call
target_mark_running.
(remote_open_1): Use have_inferiors instead of
target_has_execution. Don't use target_mark_exited.
(init_remote_ops): Install deafult_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution.
* bsd-kvm.c (bsd_kvm_return_one): New.
(bsd_kvm_add_target): Register bsd_kvm_return_one as
to_has_memory, to_has_stack and to_has_registers callbacks.
* remote-m32r-sdi.c (m32r_return_one): New.
(init_m32r_ops): Register it.
* inf-child.c (inf_child_target): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* gnu-nat.c (init_gnu_ops): Likewise.
* go32-nat.c (init_go32_ops): Likewise.
* hpux-thread.c (init_hpux_thread_ops): Likewise.
* monitor.c (init_base_monitor_ops): Likewise.
* nto-procfs.c (init_procfs_ops): Likewise.
* remote-mips.c (_initialize_remote_mips): Likewise.
* windows-nat.c (init_windows_ops): Likewise.
* remote-sim.c (gdbsim_create_inferior): Don't use
target_mark_running or target_mark_exited.
(gdbsim_mourn_inferior): Don't call target_mark_exited.
(init_gdbsim_ops): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* linux-nat.c (linux_nat_xfer_partial): If reading memory, and
there's no inferior selected, defer to a lower stratum.
2009-06-07 18:46:48 +02:00
|
|
|
|
|
|
|
|
|
if (t->to_has_registers == NULL)
|
2014-01-13 20:16:41 +01:00
|
|
|
|
t->to_has_registers = return_zero;
|
* target.h (struct target_ops): Make to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
methods instead of variables.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1)
(target_has_registers_1, target_has_execution_1): Declare
functions.
(target_has_all_memory): Rewrite to call target_has_all_memory_1.
(target_has_memory): Rewrite to call target_has_memory_1.
(target_has_stack): Rewrite to call target_has_all_stack_1.
(target_has_registers): Rewrite to call target_has_registers_1.
(target_has_execution): Rewrite to call target_has_execution_1.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Declare.
(target_mark_running, target_mark_exited): Delete declarations.
* target.c (default_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution): New.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1,
target_has_registers_1, target_has_execution_1): New.
(add_target): Default the to_has_all_memory, to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
callbacks to return 0.
(update_current_target): Do not inherit to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers or to_has_execution.
(target_mark_running, target_mark_exited): Delete.
(memory_xfer_partial): Adjust.
(target_read_memory, target_write_memory, target_search_memory):
Dispatch to the the top-most target, not the flattened
current_target.
(target_info): Adjust.
(init_dummy_target): Install return_zero as callback for
to_has_all_memory, to_has_memory, to_has_stack, to_has_registers,
to_has_execution.
(set_maintenance_target_async_permitted): Use have_live_inferiors
instead of target_has_execution.
* target-memory.c (target_write_memory_blocks): Dispatch memory
writes to the the top-most target, not the flattened
current_target.
* breakpoint.c (insert_breakpoints): Don't check for
target_has_execution here.
(update_global_location_list): Check if there are live inferiors
to debug instead of target_has_execution.
* infcmd.c (kill_command, detach_command): Check if there are
inferiors instead of target_has_execution.
* inferior.h (have_live_inferiors): Declare.
* inferior.c (have_live_inferiors): New.
* infrun.c (normal_stop): Don't check for target_has_execution to
finish the thread states.
* thread.c (is_thread_state, is_stopped, is_exited, is_running)
(any_running, is_executing): Remove checks for
target_has_execution.
* top.c (kill_or_detach): Don't try to kill core inferiors.
(quit_target): Don't check for target_has_execution.
* corelow.c (core_has_memory, core_has_stack, core_has_registers):
New.
(init_core_ops): Install core_has_memory, core_has_stack and
core_has_registers.
* exec.c (exec_has_memory): New.
(init_exec_ops): Install exec_has_memory.
* remote.c (remote_add_inferior): Don't call target_mark_running.
(remote_start_remote): Don't call target_mark_exited or call
target_mark_running.
(remote_open_1): Use have_inferiors instead of
target_has_execution. Don't use target_mark_exited.
(init_remote_ops): Install deafult_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution.
* bsd-kvm.c (bsd_kvm_return_one): New.
(bsd_kvm_add_target): Register bsd_kvm_return_one as
to_has_memory, to_has_stack and to_has_registers callbacks.
* remote-m32r-sdi.c (m32r_return_one): New.
(init_m32r_ops): Register it.
* inf-child.c (inf_child_target): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* gnu-nat.c (init_gnu_ops): Likewise.
* go32-nat.c (init_go32_ops): Likewise.
* hpux-thread.c (init_hpux_thread_ops): Likewise.
* monitor.c (init_base_monitor_ops): Likewise.
* nto-procfs.c (init_procfs_ops): Likewise.
* remote-mips.c (_initialize_remote_mips): Likewise.
* windows-nat.c (init_windows_ops): Likewise.
* remote-sim.c (gdbsim_create_inferior): Don't use
target_mark_running or target_mark_exited.
(gdbsim_mourn_inferior): Don't call target_mark_exited.
(init_gdbsim_ops): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* linux-nat.c (linux_nat_xfer_partial): If reading memory, and
there's no inferior selected, defer to a lower stratum.
2009-06-07 18:46:48 +02:00
|
|
|
|
|
|
|
|
|
if (t->to_has_execution == NULL)
|
2014-01-13 20:16:41 +01:00
|
|
|
|
t->to_has_execution = return_zero_has_execution;
|
2013-12-19 17:38:11 +01:00
|
|
|
|
|
fix regressions with target-async
A patch in the target cleanup series caused a regression when using
record with target-async. Version 4 of the patch is here:
https://sourceware.org/ml/gdb-patches/2014-03/msg00159.html
The immediate problem is that record supplies to_can_async_p and
to_is_async_p methods, but does not supply a to_async method. So,
when target-async is set, record claims to support async -- but if the
underlying target does not support async, then the to_async method
call will end up in that method's default implementation, namely
tcomplain.
This worked previously because the record target used to provide a
to_async method; one that (erroneously, only at push time) checked the
other members of the target stack, and then simply dropped to_async
calls in the "does not implement async" case.
My first thought was to simply drop tcomplain as the default for
to_async. This works, but Pedro pointed out that the only reason
record has to supply to_can_async_p and to_is_async_p is that these
default to using the find_default_run_target machinery -- and these
defaults are only needed by "run" and "attach".
So, a nicer solution presents itself: change run and attach to
explicitly call into the default run target when needed; and change
to_is_async_p and to_can_async_p to default to "return 0". This makes
the target stack simpler to use and lets us remove the method
implementations from record. This is also in harmony with other plans
for the target stack; namely trying to reduce the impact of
find_default_run_target. This approach makes it clear that
find_default_is_async_p is not needed -- it is asking whether a target
that may not even be pushed is actually async, which seems like a
nonsensical question.
While an improvement, this approach proved to introduce the same bug
when using the core target. Looking a bit deeper, the issue is that
code in "attach" and "run" may need to use either the current target
stack or the default run target -- but different calls into the target
API in those functions could wind up querying different targets.
This new patch makes the target to use more explicit in "run" and
"attach". Then these commands explicitly make the needed calls
against that target. This ensures that a single target is used for
all relevant operations. This lets us remove a couple find_default_*
functions from various targets, including the dummy target. I think
this is a decent understandability improvement.
One issue I see with this patch is that the new calls in "run" and
"attach" are not very much like the rest of the target API. I think
fundamentally this is due to bad factoring in the target API, which
may need to be fixed for multi-target. Tackling that seemed ambitious
for a regression fix.
While working on this I noticed that there don't seem to be any test
cases that involve both target-async and record, so this patch changes
break-precsave.exp to add some. It also changes corefile.exp to add
some target-async tests; these pass with current trunk and with this
patch applied, but fail with the v1 patch.
This patch differs from v4 in that it moves initialization of
to_can_async_p and to_supports_non_stop into inf-child, adds some
assertions to complete_target_initialization, and adds some comments
to target.h.
Built and regtested on x86-64 Fedora 20.
2014-03-12 Tom Tromey <tromey@redhat.com>
* inf-child.c (return_zero): New function.
(inf_child_target): Set to_can_async_p, to_supports_non_stop.
* aix-thread.c (aix_thread_inferior_created): New function.
(aix_thread_attach): Remove.
(init_aix_thread_ops): Don't set to_attach.
(_initialize_aix_thread): Register inferior_created observer.
* corelow.c (init_core_ops): Don't set to_attach or
to_create_inferior.
* exec.c (init_exec_ops): Don't set to_attach or
to_create_inferior.
* infcmd.c (run_command_1): Use find_run_target. Make direct
target calls.
(attach_command): Use find_attach_target. Make direct target
calls.
* record-btrace.c (init_record_btrace_ops): Don't set
to_create_inferior.
* record-full.c (record_full_can_async_p, record_full_is_async_p):
Remove.
(init_record_full_ops, init_record_full_core_ops): Update. Don't
set to_create_inferior.
* target.c (complete_target_initialization): Add assertion.
(target_create_inferior): Remove.
(find_default_attach, find_default_create_inferior): Remove.
(find_attach_target, find_run_target): New functions.
(find_default_is_async_p, find_default_can_async_p)
(target_supports_non_stop, target_attach): Remove.
(init_dummy_target): Don't set to_create_inferior or
to_supports_non_stop.
* target.h (struct target_ops) <to_attach>: Add comment. Remove
TARGET_DEFAULT_FUNC.
<to_create_inferior>: Add comment.
<to_can_async_p, to_is_async_p, to_supports_non_stop>: Use
TARGET_DEFAULT_RETURN.
<to_can_async_p, to_supports_non_stop, to_can_run>: Add comments.
(find_attach_target, find_run_target): Declare.
(target_create_inferior): Remove.
(target_has_execution_1): Update comment.
(target_supports_non_stop): Remove.
* target-delegates.c: Rebuild.
2014-03-12 Tom Tromey <tromey@redhat.com>
* gdb.base/corefile.exp (corefile_test_run, corefile_test_attach):
New procs. Add target-async tests.
* gdb.reverse/break-precsave.exp (precsave_tests): New proc.
Add target-async tests.
2014-02-28 17:47:34 +01:00
|
|
|
|
/* These methods can be called on an unpushed target and so require
|
|
|
|
|
a default implementation if the target might plausibly be the
|
|
|
|
|
default run target. */
|
|
|
|
|
gdb_assert (t->to_can_run == NULL || (t->to_can_async_p != NULL
|
|
|
|
|
&& t->to_supports_non_stop != NULL));
|
|
|
|
|
|
2013-12-19 17:38:11 +01:00
|
|
|
|
install_delegators (t);
|
2013-07-25 16:28:15 +02:00
|
|
|
|
}
|
|
|
|
|
|
2014-07-21 22:32:43 +02:00
|
|
|
|
/* This is used to implement the various target commands. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
open_target (char *args, int from_tty, struct cmd_list_element *command)
|
|
|
|
|
{
|
|
|
|
|
struct target_ops *ops = get_cmd_context (command);
|
|
|
|
|
|
|
|
|
|
if (targetdebug)
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog, "-> %s->to_open (...)\n",
|
|
|
|
|
ops->to_shortname);
|
|
|
|
|
|
|
|
|
|
ops->to_open (args, from_tty);
|
|
|
|
|
|
|
|
|
|
if (targetdebug)
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog, "<- %s->to_open (%s, %d)\n",
|
|
|
|
|
ops->to_shortname, args, from_tty);
|
|
|
|
|
}
|
|
|
|
|
|
2013-07-25 16:28:15 +02:00
|
|
|
|
/* Add possible target architecture T to the list and add a new
|
|
|
|
|
command 'target T->to_shortname'. Set COMPLETER as the command's
|
|
|
|
|
completer if not NULL. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
add_target_with_completer (struct target_ops *t,
|
|
|
|
|
completer_ftype *completer)
|
|
|
|
|
{
|
|
|
|
|
struct cmd_list_element *c;
|
|
|
|
|
|
|
|
|
|
complete_target_initialization (t);
|
* target.h (struct target_ops): Make to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
methods instead of variables.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1)
(target_has_registers_1, target_has_execution_1): Declare
functions.
(target_has_all_memory): Rewrite to call target_has_all_memory_1.
(target_has_memory): Rewrite to call target_has_memory_1.
(target_has_stack): Rewrite to call target_has_all_stack_1.
(target_has_registers): Rewrite to call target_has_registers_1.
(target_has_execution): Rewrite to call target_has_execution_1.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Declare.
(target_mark_running, target_mark_exited): Delete declarations.
* target.c (default_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution): New.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1,
target_has_registers_1, target_has_execution_1): New.
(add_target): Default the to_has_all_memory, to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
callbacks to return 0.
(update_current_target): Do not inherit to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers or to_has_execution.
(target_mark_running, target_mark_exited): Delete.
(memory_xfer_partial): Adjust.
(target_read_memory, target_write_memory, target_search_memory):
Dispatch to the the top-most target, not the flattened
current_target.
(target_info): Adjust.
(init_dummy_target): Install return_zero as callback for
to_has_all_memory, to_has_memory, to_has_stack, to_has_registers,
to_has_execution.
(set_maintenance_target_async_permitted): Use have_live_inferiors
instead of target_has_execution.
* target-memory.c (target_write_memory_blocks): Dispatch memory
writes to the the top-most target, not the flattened
current_target.
* breakpoint.c (insert_breakpoints): Don't check for
target_has_execution here.
(update_global_location_list): Check if there are live inferiors
to debug instead of target_has_execution.
* infcmd.c (kill_command, detach_command): Check if there are
inferiors instead of target_has_execution.
* inferior.h (have_live_inferiors): Declare.
* inferior.c (have_live_inferiors): New.
* infrun.c (normal_stop): Don't check for target_has_execution to
finish the thread states.
* thread.c (is_thread_state, is_stopped, is_exited, is_running)
(any_running, is_executing): Remove checks for
target_has_execution.
* top.c (kill_or_detach): Don't try to kill core inferiors.
(quit_target): Don't check for target_has_execution.
* corelow.c (core_has_memory, core_has_stack, core_has_registers):
New.
(init_core_ops): Install core_has_memory, core_has_stack and
core_has_registers.
* exec.c (exec_has_memory): New.
(init_exec_ops): Install exec_has_memory.
* remote.c (remote_add_inferior): Don't call target_mark_running.
(remote_start_remote): Don't call target_mark_exited or call
target_mark_running.
(remote_open_1): Use have_inferiors instead of
target_has_execution. Don't use target_mark_exited.
(init_remote_ops): Install deafult_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution.
* bsd-kvm.c (bsd_kvm_return_one): New.
(bsd_kvm_add_target): Register bsd_kvm_return_one as
to_has_memory, to_has_stack and to_has_registers callbacks.
* remote-m32r-sdi.c (m32r_return_one): New.
(init_m32r_ops): Register it.
* inf-child.c (inf_child_target): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* gnu-nat.c (init_gnu_ops): Likewise.
* go32-nat.c (init_go32_ops): Likewise.
* hpux-thread.c (init_hpux_thread_ops): Likewise.
* monitor.c (init_base_monitor_ops): Likewise.
* nto-procfs.c (init_procfs_ops): Likewise.
* remote-mips.c (_initialize_remote_mips): Likewise.
* windows-nat.c (init_windows_ops): Likewise.
* remote-sim.c (gdbsim_create_inferior): Don't use
target_mark_running or target_mark_exited.
(gdbsim_mourn_inferior): Don't call target_mark_exited.
(init_gdbsim_ops): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* linux-nat.c (linux_nat_xfer_partial): If reading memory, and
there's no inferior selected, defer to a lower stratum.
2009-06-07 18:46:48 +02:00
|
|
|
|
|
2014-08-15 22:34:34 +02:00
|
|
|
|
VEC_safe_push (target_ops_p, target_structs, t);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
if (targetlist == NULL)
|
2005-02-15 Andrew Cagney <cagney@gnu.org>
Mark up add_com, add_info and add_prefix_cmd.
* breakpoint.c, cp-support.c, dcache.c, dwarf2read.c: Update.
* exec.c, f-valprint.c, frame.c, gcore.c, gnu-nat.c: Update.
* go32-nat.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Update.
* kod.c, language.c, linux-nat.c, m32r-rom.c, macrocmd.c: Update.
* maint.c, memattr.c, mips-tdep.c, nto-procfs.c, objc-lang.c: Update.
* ocd.c, pa64solib.c, printcmd.c, procfs.c, regcache.c: Update.
* remote-e7000.c, remote-m32r-sdi.c, remote-mips.c: Update.
* remote-sds.c, remote-sim.c, remote-st.c, remote-utils.c: Update.
* remote.c, rs6000-tdep.c, ser-go32.c, serial.c: Update.
* sh-tdep.c, solib.c, somsolib.c, source.c, stack.c: Update.
* symfile.c, symtab.c, target.c, thread.c, top.c: Update.
* tracepoint.c, typeprint.c, utils.c, valprint.c: Update.
* win32-nat.c, xcoffsolib.c, cli/cli-cmds.c, cli/cli-dump.c: Update.
* cli/cli-logging.c, tui/tui-layout.c, tui/tui-regs.c: Update.
* tui/tui-stack.c, tui/tui-win.c: Update.
2005-02-15 16:49:28 +01:00
|
|
|
|
add_prefix_cmd ("target", class_run, target_command, _("\
|
|
|
|
|
Connect to a target machine or process.\n\
|
1999-04-16 03:35:26 +02:00
|
|
|
|
The first argument is the type or protocol of the target machine.\n\
|
|
|
|
|
Remaining arguments are interpreted by the target protocol. For more\n\
|
|
|
|
|
information on the arguments for a particular protocol, type\n\
|
2005-02-15 Andrew Cagney <cagney@gnu.org>
Mark up add_com, add_info and add_prefix_cmd.
* breakpoint.c, cp-support.c, dcache.c, dwarf2read.c: Update.
* exec.c, f-valprint.c, frame.c, gcore.c, gnu-nat.c: Update.
* go32-nat.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Update.
* kod.c, language.c, linux-nat.c, m32r-rom.c, macrocmd.c: Update.
* maint.c, memattr.c, mips-tdep.c, nto-procfs.c, objc-lang.c: Update.
* ocd.c, pa64solib.c, printcmd.c, procfs.c, regcache.c: Update.
* remote-e7000.c, remote-m32r-sdi.c, remote-mips.c: Update.
* remote-sds.c, remote-sim.c, remote-st.c, remote-utils.c: Update.
* remote.c, rs6000-tdep.c, ser-go32.c, serial.c: Update.
* sh-tdep.c, solib.c, somsolib.c, source.c, stack.c: Update.
* symfile.c, symtab.c, target.c, thread.c, top.c: Update.
* tracepoint.c, typeprint.c, utils.c, valprint.c: Update.
* win32-nat.c, xcoffsolib.c, cli/cli-cmds.c, cli/cli-dump.c: Update.
* cli/cli-logging.c, tui/tui-layout.c, tui/tui-regs.c: Update.
* tui/tui-stack.c, tui/tui-win.c: Update.
2005-02-15 16:49:28 +01:00
|
|
|
|
`help target ' followed by the protocol name."),
|
1999-04-16 03:35:26 +02:00
|
|
|
|
&targetlist, "target ", 0, &cmdlist);
|
2014-07-21 22:32:43 +02:00
|
|
|
|
c = add_cmd (t->to_shortname, no_class, NULL, t->to_doc, &targetlist);
|
|
|
|
|
set_cmd_sfunc (c, open_target);
|
|
|
|
|
set_cmd_context (c, t);
|
2013-03-29 16:21:23 +01:00
|
|
|
|
if (completer != NULL)
|
|
|
|
|
set_cmd_completer (c, completer);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Add a possible target architecture to the list. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
add_target (struct target_ops *t)
|
|
|
|
|
{
|
|
|
|
|
add_target_with_completer (t, NULL);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
2013-03-11 09:39:38 +01:00
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
add_deprecated_target_alias (struct target_ops *t, char *alias)
|
|
|
|
|
{
|
|
|
|
|
struct cmd_list_element *c;
|
|
|
|
|
char *alt;
|
|
|
|
|
|
|
|
|
|
/* If we use add_alias_cmd, here, we do not get the deprecated warning,
|
|
|
|
|
see PR cli/15104. */
|
2014-07-21 22:32:43 +02:00
|
|
|
|
c = add_cmd (alias, no_class, NULL, t->to_doc, &targetlist);
|
|
|
|
|
set_cmd_sfunc (c, open_target);
|
|
|
|
|
set_cmd_context (c, t);
|
2013-03-11 09:39:38 +01:00
|
|
|
|
alt = xstrprintf ("target %s", t->to_shortname);
|
|
|
|
|
deprecate_cmd (c, alt);
|
|
|
|
|
}
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
/* Stub functions */
|
|
|
|
|
|
Add a target_ops parameter to the to_kill method in struct target_ops.
* target.h (struct target_ops): Add a "target_ops *" parameter to
method to_kill.
(target_kill): Remove macro. Add declaration.
* target.c (debug_to_kill): Delete, no longer necessary.
(target_kill): New function.
(update_current_target): Stop inheriting the to_kill method.
Do not de_fault it to no_process either.
(setup_target_debug): Do not set current_target.to_kill.
* gnu-nat.c, go32-nat.c, hpux-thread.c, inf-ptrace.c, inf-ttrace.c,
linux-nat.c, monitor.c, nto-procfs.c, procfs.c, remote-m32r-sdi.c,
remote-mips.c, remote-sim.c, remote.c, windows-nat.c: Update
accordingly.
2009-03-17 20:28:09 +01:00
|
|
|
|
void
|
|
|
|
|
target_kill (void)
|
|
|
|
|
{
|
2013-12-18 22:35:15 +01:00
|
|
|
|
current_target.to_kill (¤t_target);
|
Add a target_ops parameter to the to_kill method in struct target_ops.
* target.h (struct target_ops): Add a "target_ops *" parameter to
method to_kill.
(target_kill): Remove macro. Add declaration.
* target.c (debug_to_kill): Delete, no longer necessary.
(target_kill): New function.
(update_current_target): Stop inheriting the to_kill method.
Do not de_fault it to no_process either.
(setup_target_debug): Do not set current_target.to_kill.
* gnu-nat.c, go32-nat.c, hpux-thread.c, inf-ptrace.c, inf-ttrace.c,
linux-nat.c, monitor.c, nto-procfs.c, procfs.c, remote-m32r-sdi.c,
remote-mips.c, remote-sim.c, remote.c, windows-nat.c: Update
accordingly.
2009-03-17 20:28:09 +01:00
|
|
|
|
}
|
|
|
|
|
|
1999-11-09 02:23:30 +01:00
|
|
|
|
void
|
2013-03-27 21:14:26 +01:00
|
|
|
|
target_load (const char *arg, int from_tty)
|
1999-11-09 02:23:30 +01:00
|
|
|
|
{
|
2009-08-31 22:18:46 +02:00
|
|
|
|
target_dcache_invalidate ();
|
2013-12-18 05:31:27 +01:00
|
|
|
|
(*current_target.to_load) (¤t_target, arg, from_tty);
|
1999-11-09 02:23:30 +01:00
|
|
|
|
}
|
|
|
|
|
|
2014-10-17 14:31:25 +02:00
|
|
|
|
/* Possible terminal states. */
|
|
|
|
|
|
|
|
|
|
enum terminal_state
|
|
|
|
|
{
|
|
|
|
|
/* The inferior's terminal settings are in effect. */
|
|
|
|
|
terminal_is_inferior = 0,
|
|
|
|
|
|
|
|
|
|
/* Some of our terminal settings are in effect, enough to get
|
|
|
|
|
proper output. */
|
|
|
|
|
terminal_is_ours_for_output = 1,
|
|
|
|
|
|
|
|
|
|
/* Our terminal settings are in effect, for output and input. */
|
|
|
|
|
terminal_is_ours = 2
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static enum terminal_state terminal_state;
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_terminal_init (void)
|
|
|
|
|
{
|
|
|
|
|
(*current_target.to_terminal_init) (¤t_target);
|
|
|
|
|
|
|
|
|
|
terminal_state = terminal_is_ours;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
PR gdb/17472: With annotations, input while executing in the foreground crashes readline/GDB
Jan caught an intermittent GDB crash with the annota1.exp test:
Starting program: .../gdb/testsuite/gdb.base/annota1 ^M
[...]
FAIL: gdb.base/annota1.exp: run until main breakpoint (timeout)
[...]
readline: readline_callback_read_char() called with no handler!^M
ERROR: Process no longer exists
All we need to is to continue the inferior in the foreground, and type
a command while the inferior is running. E.g.:
(gdb) set annotate 2
▒▒pre-prompt
(gdb)
▒▒prompt
c
▒▒post-prompt
Continuing.
▒▒starting
▒▒frames-invalid
*inferior is running now*
p 1<ret>
readline: readline_callback_read_char() called with no handler!
Aborted (core dumped)
$
When we run a foreground execution command we call
target_terminal_inferior to stop GDB from processing input, and to put
the inferior's terminal settings in effect. Then we tell readline to
hide the prompt with display_gdb_prompt, which clears readline's input
callback too. When the target stops, we call target_terminal_ours,
which re-installs stdin in the event loop, and then we redisplay the
prompt, reinstalling the readline callbacks.
However, when annotations are in effect, the "frames-invalid"
annotation code calls target_terminal_ours after 'resume' had already
called target_terminal_inferior:
(top-gdb) bt
#0 0x000000000056b82f in annotate_frames_invalid () at gdb/annotate.c:219
#1 0x000000000072e6cc in reinit_frame_cache () at gdb/frame.c:1705
#2 0x0000000000594bb9 in registers_changed_ptid (ptid=...) at gdb/regcache.c:612
#3 0x000000000064cca1 in target_resume (ptid=..., step=1, signal=GDB_SIGNAL_0) at gdb/target.c:2136
#4 0x00000000005f57af in resume (step=1, sig=GDB_SIGNAL_0) at gdb/infrun.c:2263
#5 0x00000000005f6051 in proceed (addr=18446744073709551615, siggnal=GDB_SIGNAL_DEFAULT, step=1) at gdb/infrun.c:2613
And then once we hide the prompt and remove readline's input handler
callback, we're in a bad state. We end up with the target running
supposedly in the foreground, but with stdin still installed on the
event loop. Any input then calls into readline, which aborts because
no rl_linefunc callback handler is installed:
Program received signal SIGABRT, Aborted.
0x0000003b36a35877 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
56 return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig);
(top-gdb) bt
#0 0x0000003b36a35877 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1 0x0000003b36a36f68 in __GI_abort () at abort.c:89
During symbol reading, debug info gives source 9 included from file at zero line 0.
During symbol reading, debug info gives command-line macro definition with non-zero line 19: _STDC_PREDEF_H 1.
#2 0x0000000000784a25 in rl_callback_read_char () at src/readline/callback.c:116
#3 0x0000000000619111 in rl_callback_read_char_wrapper (client_data=0x0) at src/gdb/event-top.c:167
#4 0x00000000006194e7 in stdin_event_handler (error=0, client_data=0x0) at src/gdb/event-top.c:373
#5 0x00000000006180da in handle_file_event (data=...) at src/gdb/event-loop.c:763
#6 0x00000000006175c1 in process_event () at src/gdb/event-loop.c:340
#7 0x0000000000617688 in gdb_do_one_event () at src/gdb/event-loop.c:404
#8 0x00000000006176d8 in start_event_loop () at src/gdb/event-loop.c:429
#9 0x0000000000619143 in cli_command_loop (data=0x0) at src/gdb/event-top.c:182
#10 0x000000000060f4c8 in current_interp_command_loop () at src/gdb/interps.c:318
#11 0x0000000000610691 in captured_command_loop (data=0x0) at src/gdb/main.c:323
#12 0x000000000060c385 in catch_errors (func=0x610676 <captured_command_loop>, func_args=0x0, errstring=0x900241 "", mask=RETURN_MASK_ALL)
at src/gdb/exceptions.c:237
#13 0x0000000000611b8f in captured_main (data=0x7fffffffd7b0) at src/gdb/main.c:1151
#14 0x000000000060c385 in catch_errors (func=0x610a8e <captured_main>, func_args=0x7fffffffd7b0, errstring=0x900241 "", mask=RETURN_MASK_ALL)
at src/gdb/exceptions.c:237
#15 0x0000000000611bb8 in gdb_main (args=0x7fffffffd7b0) at src/gdb/main.c:1159
#16 0x000000000045ef57 in main (argc=3, argv=0x7fffffffd8b8) at src/gdb/gdb.c:32
The fix is to make the annotation code call target_terminal_inferior
again after printing, if the inferior's settings were in effect.
While at it, when we're doing output only, instead of
target_terminal_ours, we should call target_terminal_ours_for_output.
The latter doesn't actually remove stdin from the event loop, and also
leaves SIGINT forwarded to the target.
New test included.
Tested on x86_64 Fedora 20, native and gdbserver.
gdb/
2014-10-17 Pedro Alves <palves@redhat.com>
PR gdb/17472
* annotate.c (annotate_breakpoints_invalid): Use
target_terminal_our_for_output instead of target_terminal_ours.
Give back the terminal to the target.
(annotate_frames_invalid): Likewise.
gdb/testsuite/
2014-10-17 Pedro Alves <palves@redhat.com>
PR gdb/17472
* gdb.base/annota-input-while-running.c: New file.
* gdb.base/annota-input-while-running.exp: New file.
2014-10-17 14:31:25 +02:00
|
|
|
|
int
|
|
|
|
|
target_terminal_is_inferior (void)
|
|
|
|
|
{
|
|
|
|
|
return (terminal_state == terminal_is_inferior);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
2009-05-21 18:00:14 +02:00
|
|
|
|
void
|
|
|
|
|
target_terminal_inferior (void)
|
|
|
|
|
{
|
|
|
|
|
/* A background resume (``run&'') should leave GDB in control of the
|
2011-01-11 22:53:25 +01:00
|
|
|
|
terminal. Use target_can_async_p, not target_is_async_p, since at
|
2009-11-28 18:00:55 +01:00
|
|
|
|
this point the target is not async yet. However, if sync_execution
|
|
|
|
|
is not set, we know it will become async prior to resume. */
|
|
|
|
|
if (target_can_async_p () && !sync_execution)
|
2009-05-21 18:00:14 +02:00
|
|
|
|
return;
|
|
|
|
|
|
2014-10-17 14:31:25 +02:00
|
|
|
|
if (terminal_state == terminal_is_inferior)
|
|
|
|
|
return;
|
|
|
|
|
|
2009-05-21 18:00:14 +02:00
|
|
|
|
/* If GDB is resuming the inferior in the foreground, install
|
|
|
|
|
inferior's terminal modes. */
|
2013-12-18 05:30:23 +01:00
|
|
|
|
(*current_target.to_terminal_inferior) (¤t_target);
|
2014-10-17 14:31:25 +02:00
|
|
|
|
terminal_state = terminal_is_inferior;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_terminal_ours (void)
|
|
|
|
|
{
|
|
|
|
|
if (terminal_state == terminal_is_ours)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
(*current_target.to_terminal_ours) (¤t_target);
|
|
|
|
|
terminal_state = terminal_is_ours;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_terminal_ours_for_output (void)
|
|
|
|
|
{
|
|
|
|
|
if (terminal_state != terminal_is_inferior)
|
|
|
|
|
return;
|
|
|
|
|
(*current_target.to_terminal_ours_for_output) (¤t_target);
|
|
|
|
|
terminal_state = terminal_is_ours_for_output;
|
2009-05-21 18:00:14 +02:00
|
|
|
|
}
|
Kill pthread_ops_hack
* target.h (struct target_ops): Make to_attach, to_detach,
to_create_inferior and to_mourn_inferior accept a pointer
to struct target_ops.
(target_attach, target_create_inferior, target_create_inferior):
Convert from macros to function. Find the right target to
invoke a method of.
(find_default_attach, find_default_create_inferior): New parameter
ops.
* corefile.c (core_file_command): Pass target to to_detach.
* corelow.c (core_detach): Add 'ops' parameter.
* fork-child.c (fork_inferior): Return the pid. Allow
init_trace_fun to be NULL.
* inf-ptrace (ptrace_ops_hack): Remove.
(inf_ptrace_him): Remove, moving all logic into....
(inf_ptrace_create_inferior): ... here. Push the target
passed as parameter.
(inf_ptrace_mourn_inferior, inf_ptrace_attach, inf_ptrace_detach):
Push/pop target passed as parameter, no ptrace_ops_hack.
(inf_ptrace_target): Don't remember result.
* inferior.h (fork_inferior): Adjust prototype.
* linux-nat.c (linux_nat_create_inferior, linux_nat_attach)
(linux_nat_detach, linux_nat_mourn_inferior): New parameter ops.
Pass it to linux_ops target.
* linux-thread-db.c (thread_db_detach, thread_db_mourn_inferior):
New parameter ops. Pass it to the target beneath.
* remote.c (remote_mourn, extended_remote_mourn, remote_detach)
(extended_remote_create_inferior): New parameter ops. Pass it
further.
* target.c (debug_to_attach, debug_to_detach)
(debug_to_mourn_inferior): New parameter ops.
(target_create_inferior): New.
(update_current_target): Do not inherit to_attach, to_detach,
to_create_inferiour, to_mourn_inferior. Do not default
to_detach and to_mourn_inferior.
(target_detach): Find the right target to use.
(target_mourn_inferior): New.
(find_default_attach, find_default_create_inferior): New parameter
ops. Pass the found target when calling its method.
(init_dummy_target): Provide fallback definition of to_detach.
(target_attach): New.
(debug_to_attach, debug_to_detach, debug_to_create_inferior)
(debug_to_mourn_inferiour): New parameter ops.
* aix-thread.c: Adjust.
* bsd-uthread.c: Adjust.
* gnu-nat.c: Adjust.
* go32-nat.c: Adjust.
* hpux-thread.c: Adjust.
* inf-ttrace.c: Ajust.
* monitor.c: Adjust.
* nto-procfs.c: Adjust.
* procfs.c: Adjust.
* remote-m32r-sdi.c: Adjust.
* remote-mips.c: Adjust.
* remote-sim.c: Adjust.
* rs6000-nat.c: Adjust.
* sol-thread.c: Adjust.
* win32-nat.c: Adjust.
* dec-thread.c: Adjust.
2008-11-09 12:27:18 +01:00
|
|
|
|
|
2014-07-11 16:30:34 +02:00
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
target_supports_terminal_ours (void)
|
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
|
|
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
|
|
|
|
{
|
|
|
|
|
if (t->to_terminal_ours != delegate_terminal_ours
|
|
|
|
|
&& t->to_terminal_ours != tdefault_terminal_ours)
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2014-12-10 19:03:47 +01:00
|
|
|
|
/* Restore the terminal to its previous state (helper for
|
|
|
|
|
make_cleanup_restore_target_terminal). */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
cleanup_restore_target_terminal (void *arg)
|
|
|
|
|
{
|
|
|
|
|
enum terminal_state *previous_state = arg;
|
|
|
|
|
|
|
|
|
|
switch (*previous_state)
|
|
|
|
|
{
|
|
|
|
|
case terminal_is_ours:
|
|
|
|
|
target_terminal_ours ();
|
|
|
|
|
break;
|
|
|
|
|
case terminal_is_ours_for_output:
|
|
|
|
|
target_terminal_ours_for_output ();
|
|
|
|
|
break;
|
|
|
|
|
case terminal_is_inferior:
|
|
|
|
|
target_terminal_inferior ();
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
struct cleanup *
|
|
|
|
|
make_cleanup_restore_target_terminal (void)
|
|
|
|
|
{
|
|
|
|
|
enum terminal_state *ts = xmalloc (sizeof (*ts));
|
|
|
|
|
|
|
|
|
|
*ts = terminal_state;
|
|
|
|
|
|
|
|
|
|
return make_cleanup_dtor (cleanup_restore_target_terminal, ts, xfree);
|
|
|
|
|
}
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
static void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
tcomplain (void)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2005-02-10 Andrew Cagney <cagney@gnu.org>
Mark up all error and warning messages.
* ada-lang.c, amd64-tdep.c, arch-utils.c, breakpoint.c: Update.
* bsd-kvm.c, bsd-uthread.c, coff-solib.h, coffread.c: Update.
* core-aout.c, core-regset.c, corefile.c, corelow.c: Update.
* cp-abi.c, cp-support.c, cp-valprint.c, cris-tdep.c: Update.
* dbxread.c, demangle.c, doublest.c, dsrec.c: Update.
* dve3900-rom.c, dwarf2expr.c, dwarf2loc.c: Update.
* dwarf2read.c, dwarfread.c, elfread.c, eval.c: Update.
* event-top.c, exec.c, expprint.c, f-lang.c: Update.
* f-typeprint.c, f-valprint.c, fbsd-nat.c, findvar.c: Update.
* frame.c, frv-linux-tdep.c, gcore.c, gdbtypes.c: Update.
* gnu-nat.c, gnu-v2-abi.c, gnu-v3-abi.c, go32-nat.c: Update.
* hpacc-abi.c, hppa-hpux-nat.c, hppa-hpux-tdep.c: Update.
* hppa-linux-nat.c, hppa-linux-tdep.c, hppa-tdep.c: Update.
* hpread.c, hpux-thread.c, i386-linux-nat.c: Update.
* i386-linux-tdep.c, i386-tdep.c, i386bsd-nat.c: Update.
* i386gnu-nat.c, i387-tdep.c, ia64-linux-nat.c: Update.
* ia64-tdep.c, inf-child.c, inf-ptrace.c, inf-ttrace.c: Update.
* infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Update.
* inftarg.c, interps.c, irix5-nat.c, jv-lang.c: Update.
* kod-cisco.c, kod.c, language.c, libunwind-frame.c: Update.
* linespec.c, linux-nat.c, linux-thread-db.c, m2-lang.c: Update.
* m32r-rom.c, m68hc11-tdep.c, m68k-tdep.c: Update.
* m68klinux-nat.c, macrocmd.c, macroexp.c, main.c: Update.
* maint.c, mdebugread.c, mem-break.c, memattr.c: Update.
* mips-linux-tdep.c, mips-tdep.c, mipsread.c, monitor.c: Update.
* nlmread.c, nto-procfs.c, objc-lang.c, objfiles.c: Update.
* observer.c, ocd.c, p-lang.c, p-typeprint.c: Update.
* p-valprint.c, pa64solib.c, parse.c, ppc-linux-tdep.c: Update.
* ppcnbsd-tdep.c, printcmd.c, procfs.c, remote-e7000.c: Update.
* remote-fileio.c, remote-m32r-sdi.c, remote-rdi.c: Update.
* remote-rdp.c, remote-sim.c, remote-st.c: Update.
* remote-utils.c, remote-utils.h, remote.c: Update.
* rom68k-rom.c, rs6000-nat.c, s390-tdep.c, scm-lang.c: Update.
* ser-e7kpc.c, ser-tcp.c, ser-unix.c, sh-tdep.c: Update.
* sh3-rom.c, shnbsd-tdep.c, sol-thread.c, solib-aix5.c: Update.
* solib-frv.c, solib-irix.c, solib-osf.c, solib-pa64.c: Update.
* solib-som.c, solib-sunos.c, solib-svr4.c, solib.c: Update.
* somread.c, somsolib.c, source.c, stabsread.c: Update.
* stack.c, std-regs.c, symfile-mem.c, symfile.c: Update.
* symmisc.c, symtab.c, target.c, thread.c, top.c: Update.
* tracepoint.c, trad-frame.c, typeprint.c, utils.c: Update.
* uw-thread.c, valarith.c, valops.c, valprint.c: Update.
* value.c, varobj.c, version.in, win32-nat.c, wince.c: Update.
* xcoffread.c, xcoffsolib.c, cli/cli-cmds.c: Update.
* cli/cli-decode.c, cli/cli-dump.c, cli/cli-logging.c: Update.
* cli/cli-script.c, cli/cli-setshow.c, mi/mi-cmd-break.c: Update.
* mi/mi-cmd-disas.c, mi/mi-cmd-env.c, mi/mi-cmd-file.c: Update.
* mi/mi-cmd-stack.c, mi/mi-cmd-var.c, mi/mi-getopt.c: Update.
* mi/mi-symbol-cmds.c, tui/tui-layout.c, tui/tui-stack.c: Update.
* tui/tui-win.c: Update.
2005-02-11 05:06:14 +01:00
|
|
|
|
error (_("You can't do that when your target is `%s'"),
|
1999-04-16 03:35:26 +02:00
|
|
|
|
current_target.to_shortname);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
noprocess (void)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2005-02-10 Andrew Cagney <cagney@gnu.org>
Mark up all error and warning messages.
* ada-lang.c, amd64-tdep.c, arch-utils.c, breakpoint.c: Update.
* bsd-kvm.c, bsd-uthread.c, coff-solib.h, coffread.c: Update.
* core-aout.c, core-regset.c, corefile.c, corelow.c: Update.
* cp-abi.c, cp-support.c, cp-valprint.c, cris-tdep.c: Update.
* dbxread.c, demangle.c, doublest.c, dsrec.c: Update.
* dve3900-rom.c, dwarf2expr.c, dwarf2loc.c: Update.
* dwarf2read.c, dwarfread.c, elfread.c, eval.c: Update.
* event-top.c, exec.c, expprint.c, f-lang.c: Update.
* f-typeprint.c, f-valprint.c, fbsd-nat.c, findvar.c: Update.
* frame.c, frv-linux-tdep.c, gcore.c, gdbtypes.c: Update.
* gnu-nat.c, gnu-v2-abi.c, gnu-v3-abi.c, go32-nat.c: Update.
* hpacc-abi.c, hppa-hpux-nat.c, hppa-hpux-tdep.c: Update.
* hppa-linux-nat.c, hppa-linux-tdep.c, hppa-tdep.c: Update.
* hpread.c, hpux-thread.c, i386-linux-nat.c: Update.
* i386-linux-tdep.c, i386-tdep.c, i386bsd-nat.c: Update.
* i386gnu-nat.c, i387-tdep.c, ia64-linux-nat.c: Update.
* ia64-tdep.c, inf-child.c, inf-ptrace.c, inf-ttrace.c: Update.
* infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Update.
* inftarg.c, interps.c, irix5-nat.c, jv-lang.c: Update.
* kod-cisco.c, kod.c, language.c, libunwind-frame.c: Update.
* linespec.c, linux-nat.c, linux-thread-db.c, m2-lang.c: Update.
* m32r-rom.c, m68hc11-tdep.c, m68k-tdep.c: Update.
* m68klinux-nat.c, macrocmd.c, macroexp.c, main.c: Update.
* maint.c, mdebugread.c, mem-break.c, memattr.c: Update.
* mips-linux-tdep.c, mips-tdep.c, mipsread.c, monitor.c: Update.
* nlmread.c, nto-procfs.c, objc-lang.c, objfiles.c: Update.
* observer.c, ocd.c, p-lang.c, p-typeprint.c: Update.
* p-valprint.c, pa64solib.c, parse.c, ppc-linux-tdep.c: Update.
* ppcnbsd-tdep.c, printcmd.c, procfs.c, remote-e7000.c: Update.
* remote-fileio.c, remote-m32r-sdi.c, remote-rdi.c: Update.
* remote-rdp.c, remote-sim.c, remote-st.c: Update.
* remote-utils.c, remote-utils.h, remote.c: Update.
* rom68k-rom.c, rs6000-nat.c, s390-tdep.c, scm-lang.c: Update.
* ser-e7kpc.c, ser-tcp.c, ser-unix.c, sh-tdep.c: Update.
* sh3-rom.c, shnbsd-tdep.c, sol-thread.c, solib-aix5.c: Update.
* solib-frv.c, solib-irix.c, solib-osf.c, solib-pa64.c: Update.
* solib-som.c, solib-sunos.c, solib-svr4.c, solib.c: Update.
* somread.c, somsolib.c, source.c, stabsread.c: Update.
* stack.c, std-regs.c, symfile-mem.c, symfile.c: Update.
* symmisc.c, symtab.c, target.c, thread.c, top.c: Update.
* tracepoint.c, trad-frame.c, typeprint.c, utils.c: Update.
* uw-thread.c, valarith.c, valops.c, valprint.c: Update.
* value.c, varobj.c, version.in, win32-nat.c, wince.c: Update.
* xcoffread.c, xcoffsolib.c, cli/cli-cmds.c: Update.
* cli/cli-decode.c, cli/cli-dump.c, cli/cli-logging.c: Update.
* cli/cli-script.c, cli/cli-setshow.c, mi/mi-cmd-break.c: Update.
* mi/mi-cmd-disas.c, mi/mi-cmd-env.c, mi/mi-cmd-file.c: Update.
* mi/mi-cmd-stack.c, mi/mi-cmd-var.c, mi/mi-getopt.c: Update.
* mi/mi-symbol-cmds.c, tui/tui-layout.c, tui/tui-stack.c: Update.
* tui/tui-win.c: Update.
2005-02-11 05:06:14 +01:00
|
|
|
|
error (_("You can't do that without a process to debug."));
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
2013-12-18 05:31:14 +01:00
|
|
|
|
default_terminal_info (struct target_ops *self, const char *args, int from_tty)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2005-02-11 Andrew Cagney <cagney@gnu.org>
Mark up some of printf_filtered and printf_unfiltered.
* ada-lang.c, annotate.c, arch-utils.c, breakpoint.c: Update.
* corelow.c, cp-namespace.c, cp-support.c, dcache.c: Update.
* demangle.c, dsrec.c, dwarf2read.c, dwarfread.c: Update.
* event-loop.c, event-top.c, exec.c, f-valprint.c: Update.
* gdbtypes.c, inf-loop.c, inf-ptrace.c, inf-ttrace.c: Update.
* infcmd.c, inflow.c, infrun.c, inftarg.c, language.c: Update.
* linespec.c, linux-nat.c, linux-thread-db.c, maint.c: Update.
* mdebugread.c, memattr.c, monitor.c, objc-lang.c: Update.
* ocd.c, osabi.c, printcmd.c, procfs.c, regcache.c: Update.
* remote.c, solib-som.c, solib.c, somsolib.c, source.c: Update.
* stack.c, symfile.c, symmisc.c, target.c, thread.c: Update.
* top.c, utils.c, valprint.c, value.c, cli/cli-cmds.c: Update.
* cli/cli-dump.c, cli/cli-logging.c, tui/tui-hooks.c: Update.
* tui/tui-regs.c, tui/tui-win.c: Update.
2005-02-12 01:39:24 +01:00
|
|
|
|
printf_unfiltered (_("No saved terminal information.\n"));
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
2008-10-22 21:45:05 +02:00
|
|
|
|
/* A default implementation for the to_get_ada_task_ptid target method.
|
|
|
|
|
|
|
|
|
|
This function builds the PTID by using both LWP and TID as part of
|
|
|
|
|
the PTID lwp and tid elements. The pid used is the pid of the
|
|
|
|
|
inferior_ptid. */
|
|
|
|
|
|
2008-02-21 Pedro Alves <pedro@codesorcery.com>
Silence a few -Wmissing-prototypes warnings.
PR build/9877:
* amd64-nat.c: Include "amd64-nat.h".
* fork-child.c (_initialize_fork_child): Ditto.
* gcore.c (_initialize_gcore): Ditto.
* inf-ptrace.c: Include "inf-ptrace.h".
(inf_ptrace_store_registers): Make it static.
* linux-nat.c (linux_nat_terminal_ours): Make it static.
(_initialize_linux_nat): Declare before definition.
* linux-tdep.c: Include "linux-tdep.h".
* linux-thread-db.c (_initialize_thread_db): Declare before
definition.
* proc-service.c (_initialize_proc_service): Ditto.
* remote.c (remote_send_printf): Make it static.
* solib.c: Include "solib.h".
* symfile-mem.c (_initialize_symfile_mem): Declare before
definition.
* ada-lang.c (ada_la_decode, ada_match_name)
(ada_suppress_symbol_printing, ada_is_array_type)
(ada_value_ptr_subscript, ada_array_length)
(ada_to_static_fixed_value): Make them static.
(_initialize_ada_language): Declare before definition.
* ada-tasks.c (ada_get_task_number, ada_get_environment_task)
(ada_task_list_changed, ada_new_objfile_observer): Make them
static.
(_initialize_tasks): Declare before definition.
* addrmap.c (_initialize_addrmap): Declare before definition.
* auxv.c (default_auxv_parse): Make it static.
* bfd-target.c (target_bfd_xfer_partial, target_bfd_xclose): Make
them static.
* breakpoint.c (remove_sal): Add line break.
(expand_line_sal_maybe): Make it static.
* cp-name-parser.y: Include "cp-support.h".
* cp-valprint.c (cp_find_class_member): Make it static.
* eval.c (value_f90_subarray): Ditto.
* exceptions.c (print_any_exception): Ditto.
* findcmd.c (_initialize_mem_search): Declare before definition.
* frame.c (frame_observer_target_changed): Make it static.
* gnu-v3-abi.c (gnuv3_find_method_in): Make it static.
* inf-child.c: Include "inf-child.h".
* inferior.h (valid_inferior_id): Rename to ...
(valid_gdb_inferior_id): ... this.
* infrun.c (infrun_thread_stop_requested, siginfo_make_value):
Make them static.
* jv-lang.c (java_language_arch_info): Make it static.
* m2-typeprint.c (m2_get_discrete_bounds): Ditto.
* osdata.c (info_osdata_command): Make it static.
* regcache.c (regcache_observer_target_changed): Make it static.
* reverse.c (_initialize_reverse): Declare before definition.
* stabsread.c (cleanup_undefined_types_noname)
(cleanup_undefined_types_1): Make them static.
* symfile.c (place_section): Make it static.
* symtab.c (find_pc_sect_psymtab_closer): Make it static.
* target-descriptions.c (_initialize_target_descriptions): Declare
before definition.
* target.c (default_get_ada_task_ptid, find_default_can_async_p)
(find_default_is_async_p, find_default_supports_non_stop): Make
them static.
(target_supports_non_stop): Add prototype.
(dummy_pid_to_str): Make it static.
* utils.c (_initialize_utils): Declare before definition.
* ada-exp.y (_initialize_ada_exp): Declare before definition.
* solib-svr4.c (HAS_LM_DYNAMIC_FROM_LINK_MAP): Add a prototype.
* target.h (struct target_ops): Add a prototype to the
to_can_execute_reverse callback.
* macroscope.c (_initialize_macroscope): Declare before definition.
* cp-namespace.c (_initialize_cp_namespace): Declare before definition.
* python/python.c (_initialize_python): Declare before definition.
* tui/tui-command.c: Include "tui/tui-command.h".
* tui/tui-data.c (init_content_element, init_win_info): Make them
static.
* tui/tui-disasm.c: Include "tui/tui-disasm.h".
* tui/tui-interp.c (_initialize_tui_interp): Declare before
definition.
* tui/tui-layout.c: Include "tui/tui-layout.h".
(_initialize_tui_layout): Declare before definition.
* tui/tui-regs.c: Include "tui/tui-regs.h".
(tui_display_reg_element_at_line): Make it static.
(_initialize_tui_regs): Declare before definition.
* tui/tui-stack.c (_initialize_tui_stack): Declare before
definition.
* tui/tui-win.c: Include "tui/tui-win.h".
(_initialize_tui_win): Declare before definition.
(tui_sigwinch_handler): Make it static. Wrap in ifdef SIGWINCH.
* tui/tui-win.h (tui_sigwinch_handler): Delete declaration.
(tui_get_cmd_list): Add a prototype.
* tui/tui-windata.c: Include tui-windata.h.
* tui/tui-wingeneral.c (box_win): Make it static.
* cli/cli-logging.c (show_logging_command): Make it static.
(_initialize_cli_logging): Declare before definition.
* mi/mi-common.c (_initialize_gdb_mi_common): Declare before
definition.
2009-02-21 17:14:50 +01:00
|
|
|
|
static ptid_t
|
2013-12-18 05:36:30 +01:00
|
|
|
|
default_get_ada_task_ptid (struct target_ops *self, long lwp, long tid)
|
2008-10-22 21:45:05 +02:00
|
|
|
|
{
|
|
|
|
|
return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid);
|
|
|
|
|
}
|
|
|
|
|
|
2011-05-26 20:11:33 +02:00
|
|
|
|
static enum exec_direction_kind
|
2013-12-18 05:36:54 +01:00
|
|
|
|
default_execution_direction (struct target_ops *self)
|
2011-05-26 20:11:33 +02:00
|
|
|
|
{
|
|
|
|
|
if (!target_can_execute_reverse)
|
|
|
|
|
return EXEC_FORWARD;
|
|
|
|
|
else if (!target_can_async_p ())
|
|
|
|
|
return EXEC_FORWARD;
|
|
|
|
|
else
|
|
|
|
|
gdb_assert_not_reached ("\
|
|
|
|
|
to_execution_direction must be implemented for reverse async");
|
|
|
|
|
}
|
|
|
|
|
|
2003-10-17 18:09:20 +02:00
|
|
|
|
/* Go through the target stack from top to bottom, copying over zero
|
|
|
|
|
entries in current_target, then filling in still empty entries. In
|
|
|
|
|
effect, we are doing class inheritance through the pushed target
|
|
|
|
|
vectors.
|
|
|
|
|
|
|
|
|
|
NOTE: cagney/2003-10-17: The problem with this inheritance, as it
|
|
|
|
|
is currently implemented, is that it discards any knowledge of
|
|
|
|
|
which target an inherited method originally belonged to.
|
|
|
|
|
Consequently, new new target methods should instead explicitly and
|
|
|
|
|
locally search the target stack for the target that can handle the
|
|
|
|
|
request. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
static void
|
2003-10-17 18:09:20 +02:00
|
|
|
|
update_current_target (void)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2003-10-17 18:09:20 +02:00
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
2007-01-23 14:03:20 +01:00
|
|
|
|
/* First, reset current's contents. */
|
2003-10-17 18:09:20 +02:00
|
|
|
|
memset (¤t_target, 0, sizeof (current_target));
|
|
|
|
|
|
2013-12-19 17:38:11 +01:00
|
|
|
|
/* Install the delegators. */
|
|
|
|
|
install_delegators (¤t_target);
|
|
|
|
|
|
2014-01-13 19:49:32 +01:00
|
|
|
|
current_target.to_stratum = target_stack->to_stratum;
|
|
|
|
|
|
2003-10-17 18:09:20 +02:00
|
|
|
|
#define INHERIT(FIELD, TARGET) \
|
|
|
|
|
if (!current_target.FIELD) \
|
|
|
|
|
current_target.FIELD = (TARGET)->FIELD
|
|
|
|
|
|
2014-01-13 19:49:32 +01:00
|
|
|
|
/* Do not add any new INHERITs here. Instead, use the delegation
|
|
|
|
|
mechanism provided by make-target-delegates. */
|
2003-10-17 18:09:20 +02:00
|
|
|
|
for (t = target_stack; t; t = t->beneath)
|
|
|
|
|
{
|
|
|
|
|
INHERIT (to_shortname, t);
|
|
|
|
|
INHERIT (to_longname, t);
|
2008-07-03 19:38:08 +02:00
|
|
|
|
INHERIT (to_attach_no_wait, t);
|
* arch-utils.c (legacy_pc_in_sigtramp): Remove.
* arch-utils.h (legacy_pc_in_sigtramp): Remove.
* config/ia64/linux.mt (DEPRECATED_TM_FILE): Remove.
* config/ia64/tm-linux.h: Remove file.
* ia64-tdep.h (struct gdbarch_tdep): Add pc_in_sigtramp callback.
* ia64-tdep.c (ia64_sigtramp_frame_sniffer): Use it instead of
legacy_pc_in_sigtramp.
(ia64_gdbarch_init): Initialize tdep->pc_in_sigtramp.
* ia64-linux-tdep.c (ia64_linux_pc_in_sigtramp): Make static.
Remove func_name argument.
(ia64_linux_init_abi): Install it as tdep->pc_in_sigtramp.
* infrun.c (HAVE_STEPPABLE_WATCHPOINT): Do not redefine.
* target.c (update_current_target): Add to_have_steppable_watchpoint.
* target.h (struct target_ops): Add to_have_steppable_watchpoint.
(HAVE_STEPPABLE_WATCHPOINT): Define.
* config/ia64/linux.mh (NATDEPFILES): Remove core-aout.o.
* config/ia64/nm-linux.h (KERNEL_U_ADDR, U_REGS_OFFSET,
CANNOT_FETCH_REGISTER, CANNOT_STORE_REGISTER,
TARGET_CAN_USE_HARDWARE_WATCHPOINT, HAVE_STEPPABLE_WATCHPOINT,
STOPPED_BY_WATCHPOINT, target_stopped_data_address,
target_insert_watchpoint, target_remove_watchpoint): Remove.
(FETCH_INFERIOR_REGISTERS): Define.
* ia64-linux-nat.c (ia64_register_addr): Make static.
(ia64_cannot_fetch_register, ia64_cannot_store_register): Likewise.
(ia64_linux_insert_watchpoint): Make static. Remove ptid_p argument.
(ia64_linux_remove_watchpoint): Likewise. Add type argument.
(ia64_linux_stopped_data_address): Make static. Add target_ops.
(ia64_linux_stopped_by_watchpoint): Make static.
(ia64_linux_can_use_hw_breakpoint): New function.
(ia64_linux_fetch_register, ia64_linux_fetch_registers): Likewise.
(ia64_linux_store_register, ia64_linux_store_registers): Likewise.
(_initialize_ia64_linux_nat): Install register and watchpoint ops.
2007-03-28 20:56:07 +02:00
|
|
|
|
INHERIT (to_have_steppable_watchpoint, t);
|
2003-10-17 18:09:20 +02:00
|
|
|
|
INHERIT (to_have_continuable_watchpoint, t);
|
|
|
|
|
INHERIT (to_has_thread_control, t);
|
|
|
|
|
}
|
|
|
|
|
#undef INHERIT
|
|
|
|
|
|
|
|
|
|
/* Finally, position the target-stack beneath the squashed
|
|
|
|
|
"current_target". That way code looking for a non-inherited
|
|
|
|
|
target method can quickly and simply find it. */
|
|
|
|
|
current_target.beneath = target_stack;
|
2007-10-10 15:28:43 +02:00
|
|
|
|
|
|
|
|
|
if (targetdebug)
|
|
|
|
|
setup_target_debug ();
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Push a new target type into the stack of the existing target accessors,
|
|
|
|
|
possibly superseding some of the existing accessors.
|
|
|
|
|
|
|
|
|
|
Rather than allow an empty stack, we always have the dummy target at
|
|
|
|
|
the bottom stratum, so we can call the function vectors without
|
|
|
|
|
checking them. */
|
|
|
|
|
|
2010-05-23 16:23:31 +02:00
|
|
|
|
void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
push_target (struct target_ops *t)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2003-10-17 15:59:27 +02:00
|
|
|
|
struct target_ops **cur;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
/* Check magic number. If wrong, it probably means someone changed
|
|
|
|
|
the struct definition, but not all the places that initialize one. */
|
|
|
|
|
if (t->to_magic != OPS_MAGIC)
|
|
|
|
|
{
|
1999-07-07 22:19:36 +02:00
|
|
|
|
fprintf_unfiltered (gdb_stderr,
|
|
|
|
|
"Magic number of %s target struct wrong\n",
|
|
|
|
|
t->to_shortname);
|
2011-01-05 23:22:53 +01:00
|
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
|
_("failed internal consistency check"));
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
2003-10-17 15:59:27 +02:00
|
|
|
|
/* Find the proper stratum to install this target in. */
|
|
|
|
|
for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2003-10-17 15:59:27 +02:00
|
|
|
|
if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
2003-10-17 15:59:27 +02:00
|
|
|
|
/* If there's already targets at this stratum, remove them. */
|
2006-03-17 01:30:34 +01:00
|
|
|
|
/* FIXME: cagney/2003-10-15: I think this should be popping all
|
2003-10-17 15:59:27 +02:00
|
|
|
|
targets to CUR, and not just those at this stratum level. */
|
|
|
|
|
while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum)
|
|
|
|
|
{
|
|
|
|
|
/* There's already something at this stratum level. Close it,
|
|
|
|
|
and un-hook it from the stack. */
|
|
|
|
|
struct target_ops *tmp = (*cur);
|
2010-05-17 03:15:20 +02:00
|
|
|
|
|
2003-10-17 15:59:27 +02:00
|
|
|
|
(*cur) = (*cur)->beneath;
|
|
|
|
|
tmp->beneath = NULL;
|
2013-03-20 16:46:24 +01:00
|
|
|
|
target_close (tmp);
|
2003-10-17 15:59:27 +02:00
|
|
|
|
}
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
/* We have removed all targets in our stratum, now add the new one. */
|
2003-10-17 15:59:27 +02:00
|
|
|
|
t->beneath = (*cur);
|
|
|
|
|
(*cur) = t;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
update_current_target ();
|
|
|
|
|
}
|
|
|
|
|
|
2006-08-16 20:31:03 +02:00
|
|
|
|
/* Remove a target_ops vector from the stack, wherever it may be.
|
1999-04-16 03:35:26 +02:00
|
|
|
|
Return how many times it was removed (0 or 1). */
|
|
|
|
|
|
|
|
|
|
int
|
2000-07-30 03:48:28 +02:00
|
|
|
|
unpush_target (struct target_ops *t)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2003-10-17 15:59:27 +02:00
|
|
|
|
struct target_ops **cur;
|
|
|
|
|
struct target_ops *tmp;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2008-10-09 05:24:51 +02:00
|
|
|
|
if (t->to_stratum == dummy_stratum)
|
|
|
|
|
internal_error (__FILE__, __LINE__,
|
2011-01-11 16:10:03 +01:00
|
|
|
|
_("Attempt to unpush the dummy target"));
|
2008-10-09 05:24:51 +02:00
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
/* Look for the specified target. Note that we assume that a target
|
2011-01-11 22:53:25 +01:00
|
|
|
|
can only occur once in the target stack. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2003-10-17 15:59:27 +02:00
|
|
|
|
for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath)
|
|
|
|
|
{
|
|
|
|
|
if ((*cur) == t)
|
|
|
|
|
break;
|
|
|
|
|
}
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2012-01-19 17:32:59 +01:00
|
|
|
|
/* If we don't find target_ops, quit. Only open targets should be
|
|
|
|
|
closed. */
|
2003-10-17 15:59:27 +02:00
|
|
|
|
if ((*cur) == NULL)
|
2012-01-19 17:32:59 +01:00
|
|
|
|
return 0;
|
2004-01-05 23:32:23 +01:00
|
|
|
|
|
2011-01-11 22:53:25 +01:00
|
|
|
|
/* Unchain the target. */
|
2003-10-17 15:59:27 +02:00
|
|
|
|
tmp = (*cur);
|
|
|
|
|
(*cur) = (*cur)->beneath;
|
|
|
|
|
tmp->beneath = NULL;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
update_current_target ();
|
|
|
|
|
|
2012-01-19 17:32:59 +01:00
|
|
|
|
/* Finally close the target. Note we do this after unchaining, so
|
|
|
|
|
any target method calls from within the target_close
|
|
|
|
|
implementation don't end up in T anymore. */
|
2013-03-20 16:46:24 +01:00
|
|
|
|
target_close (t);
|
2012-01-19 17:32:59 +01:00
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
2008-08-17 00:12:18 +02:00
|
|
|
|
void
|
2013-03-20 16:46:24 +01:00
|
|
|
|
pop_all_targets_above (enum strata above_stratum)
|
2008-08-17 00:12:18 +02:00
|
|
|
|
{
|
2008-08-19 01:12:40 +02:00
|
|
|
|
while ((int) (current_target.to_stratum) > (int) above_stratum)
|
2008-08-17 00:12:18 +02:00
|
|
|
|
{
|
|
|
|
|
if (!unpush_target (target_stack))
|
|
|
|
|
{
|
|
|
|
|
fprintf_unfiltered (gdb_stderr,
|
|
|
|
|
"pop_all_targets couldn't find target %s\n",
|
2008-09-05 13:50:57 +02:00
|
|
|
|
target_stack->to_shortname);
|
2008-08-17 00:12:18 +02:00
|
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
|
_("failed internal consistency check"));
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2008-08-19 01:12:40 +02:00
|
|
|
|
void
|
2013-03-20 16:46:24 +01:00
|
|
|
|
pop_all_targets (void)
|
2008-08-19 01:12:40 +02:00
|
|
|
|
{
|
2013-03-20 16:46:24 +01:00
|
|
|
|
pop_all_targets_above (dummy_stratum);
|
2008-08-19 01:12:40 +02:00
|
|
|
|
}
|
|
|
|
|
|
2010-07-19 19:51:25 +02:00
|
|
|
|
/* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
target_is_pushed (struct target_ops *t)
|
|
|
|
|
{
|
2014-07-18 16:48:43 +02:00
|
|
|
|
struct target_ops *cur;
|
2010-07-19 19:51:25 +02:00
|
|
|
|
|
|
|
|
|
/* Check magic number. If wrong, it probably means someone changed
|
|
|
|
|
the struct definition, but not all the places that initialize one. */
|
|
|
|
|
if (t->to_magic != OPS_MAGIC)
|
|
|
|
|
{
|
|
|
|
|
fprintf_unfiltered (gdb_stderr,
|
|
|
|
|
"Magic number of %s target struct wrong\n",
|
|
|
|
|
t->to_shortname);
|
2011-01-05 23:22:53 +01:00
|
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
|
_("failed internal consistency check"));
|
2010-07-19 19:51:25 +02:00
|
|
|
|
}
|
|
|
|
|
|
2014-07-18 16:48:43 +02:00
|
|
|
|
for (cur = target_stack; cur != NULL; cur = cur->beneath)
|
|
|
|
|
if (cur == t)
|
2010-07-19 19:51:25 +02:00
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2014-06-25 18:16:55 +02:00
|
|
|
|
/* Default implementation of to_get_thread_local_address. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
generic_tls_error (void)
|
|
|
|
|
{
|
|
|
|
|
throw_error (TLS_GENERIC_ERROR,
|
|
|
|
|
_("Cannot find thread-local variables on this target"));
|
|
|
|
|
}
|
|
|
|
|
|
2008-01-11 01:12:43 +01:00
|
|
|
|
/* Using the objfile specified in OBJFILE, find the address for the
|
2006-10-10 05:17:53 +02:00
|
|
|
|
current thread's thread-local storage with offset OFFSET. */
|
|
|
|
|
CORE_ADDR
|
|
|
|
|
target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset)
|
|
|
|
|
{
|
|
|
|
|
volatile CORE_ADDR addr = 0;
|
2014-06-25 18:16:55 +02:00
|
|
|
|
struct target_ops *target = ¤t_target;
|
2006-10-10 05:17:53 +02:00
|
|
|
|
|
2014-06-25 18:16:55 +02:00
|
|
|
|
if (gdbarch_fetch_tls_load_module_address_p (target_gdbarch ()))
|
2006-10-10 05:17:53 +02:00
|
|
|
|
{
|
|
|
|
|
ptid_t ptid = inferior_ptid;
|
|
|
|
|
|
Split TRY_CATCH into TRY + CATCH
This patch splits the TRY_CATCH macro into three, so that we go from
this:
~~~
volatile gdb_exception ex;
TRY_CATCH (ex, RETURN_MASK_ERROR)
{
}
if (ex.reason < 0)
{
}
~~~
to this:
~~~
TRY
{
}
CATCH (ex, RETURN_MASK_ERROR)
{
}
END_CATCH
~~~
Thus, we'll be getting rid of the local volatile exception object, and
declaring the caught exception in the catch block.
This allows reimplementing TRY/CATCH in terms of C++ exceptions when
building in C++ mode, while still allowing to build GDB in C mode
(using setjmp/longjmp), as a transition step.
TBC, after this patch, is it _not_ valid to have code between the TRY
and the CATCH blocks, like:
TRY
{
}
// some code here.
CATCH (ex, RETURN_MASK_ERROR)
{
}
END_CATCH
Just like it isn't valid to do that with C++'s native try/catch.
By switching to creating the exception object inside the CATCH block
scope, we can get rid of all the explicitly allocated volatile
exception objects all over the tree, and map the CATCH block more
directly to C++'s catch blocks.
The majority of the TRY_CATCH -> TRY+CATCH+END_CATCH conversion was
done with a script, rerun from scratch at every rebase, no manual
editing involved. After the mechanical conversion, a few places
needed manual intervention, to fix preexisting cases where we were
using the exception object outside of the TRY_CATCH block, and cases
where we were using "else" after a 'if (ex.reason) < 0)' [a CATCH
after this patch]. The result was folded into this patch so that GDB
still builds at each incremental step.
END_CATCH is necessary for two reasons:
First, because we name the exception object in the CATCH block, which
requires creating a scope, which in turn must be closed somewhere.
Declaring the exception variable in the initializer field of a for
block, like:
#define CATCH(EXCEPTION, mask) \
for (struct gdb_exception EXCEPTION; \
exceptions_state_mc_catch (&EXCEPTION, MASK); \
EXCEPTION = exception_none)
would avoid needing END_CATCH, but alas, in C mode, we build with C90,
which doesn't allow mixed declarations and code.
Second, because when TRY/CATCH are wired to real C++ try/catch, as
long as we need to handle cleanup chains, even if there's no CATCH
block that wants to catch the exception, we need for stop at every
frame in the unwind chain and run cleanups, then rethrow. That will
be done in END_CATCH.
After we require C++, we'll still need TRY/CATCH/END_CATCH until
cleanups are completely phased out -- TRY/CATCH in C++ mode will
save/restore the current cleanup chain, like in C mode, and END_CATCH
catches otherwise uncaugh exceptions, runs cleanups and rethrows, so
that C++ cleanups and exceptions can coexist.
IMO, this still makes the TRY/CATCH code look a bit more like a
newcomer would expect, so IMO worth it even if we weren't considering
C++.
gdb/ChangeLog.
2015-03-07 Pedro Alves <palves@redhat.com>
* common/common-exceptions.c (struct catcher) <exception>: No
longer a pointer to volatile exception. Now an exception value.
<mask>: Delete field.
(exceptions_state_mc_init): Remove all parameters. Adjust.
(exceptions_state_mc): No longer pop the catcher here.
(exceptions_state_mc_catch): New function.
(throw_exception): Adjust.
* common/common-exceptions.h (exceptions_state_mc_init): Remove
all parameters.
(exceptions_state_mc_catch): Declare.
(TRY_CATCH): Rename to ...
(TRY): ... this. Remove EXCEPTION and MASK parameters.
(CATCH, END_CATCH): New.
All callers adjusted.
gdb/gdbserver/ChangeLog:
2015-03-07 Pedro Alves <palves@redhat.com>
Adjust all callers of TRY_CATCH to use TRY/CATCH/END_CATCH
instead.
2015-03-07 16:14:14 +01:00
|
|
|
|
TRY
|
2006-10-10 05:17:53 +02:00
|
|
|
|
{
|
|
|
|
|
CORE_ADDR lm_addr;
|
|
|
|
|
|
|
|
|
|
/* Fetch the load module address for this objfile. */
|
* gdbarch.sh (target_gdbarch): Remove macro.
(get_target_gdbarch): Rename to target_gdbarch.
* gdbarch.c, gdbarch.h: Rebuild.
* ada-tasks.c, aix-thread.c, amd64-linux-nat.c, arch-utils.c,
arm-tdep.c, auxv.c, breakpoint.c, bsd-uthread.c, corefile.c,
darwin-nat-info.c, dcache.c, dsrec.c, exec.c, fbsd-nat.c,
filesystem.c, gcore.c, gnu-nat.c, i386-darwin-nat.c, i386-nat.c,
ia64-vms-tdep.c, inf-ptrace.c, infcmd.c, jit.c, linux-nat.c,
linux-tdep.c, linux-thread-db.c, m32r-rom.c, memattr.c,
mep-tdep.c, microblaze-tdep.c, mips-linux-nat.c,
mips-linux-tdep.c, mips-tdep.c, monitor.c, moxie-tdep.c,
nto-procfs.c, nto-tdep.c, ppc-linux-nat.c, proc-service.c,
procfs.c, progspace.c, ravenscar-thread.c, record.c,
remote-m32r-sdi.c, remote-mips.c, remote-sim.c, remote.c,
rl78-tdep.c, rs6000-nat.c, rx-tdep.c, s390-nat.c, sol-thread.c,
solib-darwin.c, solib-dsbt.c, solib-frv.c, solib-ia64-hpux.c,
solib-irix.c, solib-pa64.c, solib-som.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, solib.c, spu-linux-nat.c,
spu-multiarch.c, spu-tdep.c, symfile-mem.c, symfile.c, symtab.c,
target-descriptions.c, target.c, target.h, tracepoint.c,
windows-nat.c, windows-tdep.c, xcoffsolib.c, cli/cli-dump.c,
common/agent.c, mi/mi-interp.c, python/py-finishbreakpoint.c,
python/py-inferior.c, python/python.c: Update.
2012-11-09 20:58:03 +01:00
|
|
|
|
lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (),
|
2006-10-10 05:17:53 +02:00
|
|
|
|
objfile);
|
|
|
|
|
|
2011-01-05 23:22:53 +01:00
|
|
|
|
addr = target->to_get_thread_local_address (target, ptid,
|
|
|
|
|
lm_addr, offset);
|
2006-10-10 05:17:53 +02:00
|
|
|
|
}
|
|
|
|
|
/* If an error occurred, print TLS related messages here. Otherwise,
|
|
|
|
|
throw the error to some higher catcher. */
|
Split TRY_CATCH into TRY + CATCH
This patch splits the TRY_CATCH macro into three, so that we go from
this:
~~~
volatile gdb_exception ex;
TRY_CATCH (ex, RETURN_MASK_ERROR)
{
}
if (ex.reason < 0)
{
}
~~~
to this:
~~~
TRY
{
}
CATCH (ex, RETURN_MASK_ERROR)
{
}
END_CATCH
~~~
Thus, we'll be getting rid of the local volatile exception object, and
declaring the caught exception in the catch block.
This allows reimplementing TRY/CATCH in terms of C++ exceptions when
building in C++ mode, while still allowing to build GDB in C mode
(using setjmp/longjmp), as a transition step.
TBC, after this patch, is it _not_ valid to have code between the TRY
and the CATCH blocks, like:
TRY
{
}
// some code here.
CATCH (ex, RETURN_MASK_ERROR)
{
}
END_CATCH
Just like it isn't valid to do that with C++'s native try/catch.
By switching to creating the exception object inside the CATCH block
scope, we can get rid of all the explicitly allocated volatile
exception objects all over the tree, and map the CATCH block more
directly to C++'s catch blocks.
The majority of the TRY_CATCH -> TRY+CATCH+END_CATCH conversion was
done with a script, rerun from scratch at every rebase, no manual
editing involved. After the mechanical conversion, a few places
needed manual intervention, to fix preexisting cases where we were
using the exception object outside of the TRY_CATCH block, and cases
where we were using "else" after a 'if (ex.reason) < 0)' [a CATCH
after this patch]. The result was folded into this patch so that GDB
still builds at each incremental step.
END_CATCH is necessary for two reasons:
First, because we name the exception object in the CATCH block, which
requires creating a scope, which in turn must be closed somewhere.
Declaring the exception variable in the initializer field of a for
block, like:
#define CATCH(EXCEPTION, mask) \
for (struct gdb_exception EXCEPTION; \
exceptions_state_mc_catch (&EXCEPTION, MASK); \
EXCEPTION = exception_none)
would avoid needing END_CATCH, but alas, in C mode, we build with C90,
which doesn't allow mixed declarations and code.
Second, because when TRY/CATCH are wired to real C++ try/catch, as
long as we need to handle cleanup chains, even if there's no CATCH
block that wants to catch the exception, we need for stop at every
frame in the unwind chain and run cleanups, then rethrow. That will
be done in END_CATCH.
After we require C++, we'll still need TRY/CATCH/END_CATCH until
cleanups are completely phased out -- TRY/CATCH in C++ mode will
save/restore the current cleanup chain, like in C mode, and END_CATCH
catches otherwise uncaugh exceptions, runs cleanups and rethrows, so
that C++ cleanups and exceptions can coexist.
IMO, this still makes the TRY/CATCH code look a bit more like a
newcomer would expect, so IMO worth it even if we weren't considering
C++.
gdb/ChangeLog.
2015-03-07 Pedro Alves <palves@redhat.com>
* common/common-exceptions.c (struct catcher) <exception>: No
longer a pointer to volatile exception. Now an exception value.
<mask>: Delete field.
(exceptions_state_mc_init): Remove all parameters. Adjust.
(exceptions_state_mc): No longer pop the catcher here.
(exceptions_state_mc_catch): New function.
(throw_exception): Adjust.
* common/common-exceptions.h (exceptions_state_mc_init): Remove
all parameters.
(exceptions_state_mc_catch): Declare.
(TRY_CATCH): Rename to ...
(TRY): ... this. Remove EXCEPTION and MASK parameters.
(CATCH, END_CATCH): New.
All callers adjusted.
gdb/gdbserver/ChangeLog:
2015-03-07 Pedro Alves <palves@redhat.com>
Adjust all callers of TRY_CATCH to use TRY/CATCH/END_CATCH
instead.
2015-03-07 16:14:14 +01:00
|
|
|
|
CATCH (ex, RETURN_MASK_ALL)
|
2006-10-10 05:17:53 +02:00
|
|
|
|
{
|
|
|
|
|
int objfile_is_library = (objfile->flags & OBJF_SHARED);
|
|
|
|
|
|
|
|
|
|
switch (ex.error)
|
|
|
|
|
{
|
|
|
|
|
case TLS_NO_LIBRARY_SUPPORT_ERROR:
|
2011-01-05 23:22:53 +01:00
|
|
|
|
error (_("Cannot find thread-local variables "
|
|
|
|
|
"in this thread library."));
|
2006-10-10 05:17:53 +02:00
|
|
|
|
break;
|
|
|
|
|
case TLS_LOAD_MODULE_NOT_FOUND_ERROR:
|
|
|
|
|
if (objfile_is_library)
|
|
|
|
|
error (_("Cannot find shared library `%s' in dynamic"
|
Code cleanup: Add objfile_name accessor
gdb/
2013-09-24 Jan Kratochvil <jan.kratochvil@redhat.com>
Code cleanup: Add objfile_name accessor function.
* ada-lang.c (is_known_support_routine): Use objfile_name.
* auto-load.c (source_gdb_script_for_objfile)
(auto_load_objfile_script): Likewise.
* coffread.c (coff_symtab_read, read_one_sym): Likewise.
* dbxread.c (dbx_symfile_read): Likewise.
* dwarf2-frame.c (dwarf2_build_frame_info): Likewise.
* dwarf2loc.c (locexpr_describe_location_piece): Likewise.
* dwarf2read.c (dwarf2_get_dwz_file, dwarf2_read_index)
(dw2_symtab_iter_next, dw2_expand_symtabs_matching)
(lookup_dwp_signatured_type, lookup_dwo_unit)
(dwarf2_build_psymtabs_hard, scan_partial_symbols, process_queue)
(fixup_go_packaging, process_imported_unit_die, dwarf2_physname)
(read_import_statement, create_dwo_cu, open_and_init_dwp_file)
(lookup_dwo_cutu, read_call_site_scope, dwarf2_ranges_read)
(dwarf2_record_block_ranges, read_common_block, read_typedef)
(read_subrange_type, load_partial_dies, read_partial_die)
(read_addr_index_1, read_str_index, dwarf_decode_lines_1)
(die_containing_type, build_error_marker_type, lookup_die_type)
(follow_die_ref_or_sig, follow_die_ref, dwarf2_fetch_die_loc_sect_off)
(dwarf2_fetch_constant_bytes, follow_die_sig, get_signatured_type)
(get_DW_AT_signature_type, write_psymtabs_to_index)
(save_gdb_index_command): Likewise.
* elfread.c (find_separate_debug_file_by_buildid, elf_symfile_read):
Likewise.
* expprint.c (dump_subexp_body_standard): Likewise.
* gdbtypes.c (type_name_no_tag_or_error): Likewise.
* jit.c (jit_object_close_impl): Use the objfile field name renamed to
original_name.
* linux-thread-db.c (try_thread_db_load_from_pdir_1): New variable
obj_name, use objfile_name for it, use the variable.
(try_thread_db_load_from_pdir, has_libpthread, thread_db_new_objfile):
Use objfile_name.
* machoread.c (macho_symtab_read, macho_check_dsym)
(macho_symfile_relocate): Likewise.
* maint.c (maintenance_translate_address): Likewise.
* minidebug.c (find_separate_debug_file_in_section): Likewise.
* minsyms.c (install_minimal_symbols): Likewise.
* objfiles.c (allocate_objfile): Use the objfile field name renamed to
original_name.
(filter_overlapping_sections): Use objfile_name.
(objfile_name): New function.
* objfiles.h (struct objfile): Rename field name to original_name.
(objfile_name): New prototype.
* printcmd.c (sym_info, address_info): Use objfile_name.
* probe.c (parse_probes, collect_probes, compare_probes)
(info_probes_for_ops): Likewise.
* progspace.c (clone_program_space): Likewise.
* psymtab.c (require_partial_symbols, dump_psymtab, allocate_psymtab)
(maintenance_info_psymtabs): Likewise.
* python/py-auto-load.c (gdbpy_load_auto_script_for_objfile)
(source_section_scripts): Likewise.
* python/py-objfile.c (objfpy_get_filename): Likewise.
* python/py-progspace.c (pspy_get_filename): Likewise.
* solib-aix.c (solib_aix_get_toc_value): Likewise.
* solib-som.c (match_main, som_solib_section_offsets): Likewise.
* solib.c (solib_read_symbols): Likewise.
* stabsread.c (scan_file_globals): Likewise.
* stap-probe.c (handle_stap_probe): Likewise.
* symfile.c (symbol_file_clear, separate_debug_file_exists)
(find_separate_debug_file_by_debuglink): Likewise.
(reread_symbols): Likewise. Use the objfile field name renamed to
original_name.
(allocate_symtab): Use objfile_name.
* symmisc.c (print_symbol_bcache_statistics, print_objfile_statistics)
(dump_objfile, dump_msymbols, dump_symtab_1)
(maintenance_print_msymbols, maintenance_print_objfiles)
(maintenance_info_symtabs, maintenance_check_symtabs): Likewise.
* target.c (target_translate_tls_address, target_info): Likewise.
* xcoffread.c (xcoff_initial_scan): Make variable name const. Use
objfile_name.
2013-09-24 15:57:38 +02:00
|
|
|
|
" linker's load module list"), objfile_name (objfile));
|
2006-10-10 05:17:53 +02:00
|
|
|
|
else
|
|
|
|
|
error (_("Cannot find executable file `%s' in dynamic"
|
Code cleanup: Add objfile_name accessor
gdb/
2013-09-24 Jan Kratochvil <jan.kratochvil@redhat.com>
Code cleanup: Add objfile_name accessor function.
* ada-lang.c (is_known_support_routine): Use objfile_name.
* auto-load.c (source_gdb_script_for_objfile)
(auto_load_objfile_script): Likewise.
* coffread.c (coff_symtab_read, read_one_sym): Likewise.
* dbxread.c (dbx_symfile_read): Likewise.
* dwarf2-frame.c (dwarf2_build_frame_info): Likewise.
* dwarf2loc.c (locexpr_describe_location_piece): Likewise.
* dwarf2read.c (dwarf2_get_dwz_file, dwarf2_read_index)
(dw2_symtab_iter_next, dw2_expand_symtabs_matching)
(lookup_dwp_signatured_type, lookup_dwo_unit)
(dwarf2_build_psymtabs_hard, scan_partial_symbols, process_queue)
(fixup_go_packaging, process_imported_unit_die, dwarf2_physname)
(read_import_statement, create_dwo_cu, open_and_init_dwp_file)
(lookup_dwo_cutu, read_call_site_scope, dwarf2_ranges_read)
(dwarf2_record_block_ranges, read_common_block, read_typedef)
(read_subrange_type, load_partial_dies, read_partial_die)
(read_addr_index_1, read_str_index, dwarf_decode_lines_1)
(die_containing_type, build_error_marker_type, lookup_die_type)
(follow_die_ref_or_sig, follow_die_ref, dwarf2_fetch_die_loc_sect_off)
(dwarf2_fetch_constant_bytes, follow_die_sig, get_signatured_type)
(get_DW_AT_signature_type, write_psymtabs_to_index)
(save_gdb_index_command): Likewise.
* elfread.c (find_separate_debug_file_by_buildid, elf_symfile_read):
Likewise.
* expprint.c (dump_subexp_body_standard): Likewise.
* gdbtypes.c (type_name_no_tag_or_error): Likewise.
* jit.c (jit_object_close_impl): Use the objfile field name renamed to
original_name.
* linux-thread-db.c (try_thread_db_load_from_pdir_1): New variable
obj_name, use objfile_name for it, use the variable.
(try_thread_db_load_from_pdir, has_libpthread, thread_db_new_objfile):
Use objfile_name.
* machoread.c (macho_symtab_read, macho_check_dsym)
(macho_symfile_relocate): Likewise.
* maint.c (maintenance_translate_address): Likewise.
* minidebug.c (find_separate_debug_file_in_section): Likewise.
* minsyms.c (install_minimal_symbols): Likewise.
* objfiles.c (allocate_objfile): Use the objfile field name renamed to
original_name.
(filter_overlapping_sections): Use objfile_name.
(objfile_name): New function.
* objfiles.h (struct objfile): Rename field name to original_name.
(objfile_name): New prototype.
* printcmd.c (sym_info, address_info): Use objfile_name.
* probe.c (parse_probes, collect_probes, compare_probes)
(info_probes_for_ops): Likewise.
* progspace.c (clone_program_space): Likewise.
* psymtab.c (require_partial_symbols, dump_psymtab, allocate_psymtab)
(maintenance_info_psymtabs): Likewise.
* python/py-auto-load.c (gdbpy_load_auto_script_for_objfile)
(source_section_scripts): Likewise.
* python/py-objfile.c (objfpy_get_filename): Likewise.
* python/py-progspace.c (pspy_get_filename): Likewise.
* solib-aix.c (solib_aix_get_toc_value): Likewise.
* solib-som.c (match_main, som_solib_section_offsets): Likewise.
* solib.c (solib_read_symbols): Likewise.
* stabsread.c (scan_file_globals): Likewise.
* stap-probe.c (handle_stap_probe): Likewise.
* symfile.c (symbol_file_clear, separate_debug_file_exists)
(find_separate_debug_file_by_debuglink): Likewise.
(reread_symbols): Likewise. Use the objfile field name renamed to
original_name.
(allocate_symtab): Use objfile_name.
* symmisc.c (print_symbol_bcache_statistics, print_objfile_statistics)
(dump_objfile, dump_msymbols, dump_symtab_1)
(maintenance_print_msymbols, maintenance_print_objfiles)
(maintenance_info_symtabs, maintenance_check_symtabs): Likewise.
* target.c (target_translate_tls_address, target_info): Likewise.
* xcoffread.c (xcoff_initial_scan): Make variable name const. Use
objfile_name.
2013-09-24 15:57:38 +02:00
|
|
|
|
" linker's load module list"), objfile_name (objfile));
|
2006-10-10 05:17:53 +02:00
|
|
|
|
break;
|
|
|
|
|
case TLS_NOT_ALLOCATED_YET_ERROR:
|
|
|
|
|
if (objfile_is_library)
|
|
|
|
|
error (_("The inferior has not yet allocated storage for"
|
|
|
|
|
" thread-local variables in\n"
|
|
|
|
|
"the shared library `%s'\n"
|
|
|
|
|
"for %s"),
|
Code cleanup: Add objfile_name accessor
gdb/
2013-09-24 Jan Kratochvil <jan.kratochvil@redhat.com>
Code cleanup: Add objfile_name accessor function.
* ada-lang.c (is_known_support_routine): Use objfile_name.
* auto-load.c (source_gdb_script_for_objfile)
(auto_load_objfile_script): Likewise.
* coffread.c (coff_symtab_read, read_one_sym): Likewise.
* dbxread.c (dbx_symfile_read): Likewise.
* dwarf2-frame.c (dwarf2_build_frame_info): Likewise.
* dwarf2loc.c (locexpr_describe_location_piece): Likewise.
* dwarf2read.c (dwarf2_get_dwz_file, dwarf2_read_index)
(dw2_symtab_iter_next, dw2_expand_symtabs_matching)
(lookup_dwp_signatured_type, lookup_dwo_unit)
(dwarf2_build_psymtabs_hard, scan_partial_symbols, process_queue)
(fixup_go_packaging, process_imported_unit_die, dwarf2_physname)
(read_import_statement, create_dwo_cu, open_and_init_dwp_file)
(lookup_dwo_cutu, read_call_site_scope, dwarf2_ranges_read)
(dwarf2_record_block_ranges, read_common_block, read_typedef)
(read_subrange_type, load_partial_dies, read_partial_die)
(read_addr_index_1, read_str_index, dwarf_decode_lines_1)
(die_containing_type, build_error_marker_type, lookup_die_type)
(follow_die_ref_or_sig, follow_die_ref, dwarf2_fetch_die_loc_sect_off)
(dwarf2_fetch_constant_bytes, follow_die_sig, get_signatured_type)
(get_DW_AT_signature_type, write_psymtabs_to_index)
(save_gdb_index_command): Likewise.
* elfread.c (find_separate_debug_file_by_buildid, elf_symfile_read):
Likewise.
* expprint.c (dump_subexp_body_standard): Likewise.
* gdbtypes.c (type_name_no_tag_or_error): Likewise.
* jit.c (jit_object_close_impl): Use the objfile field name renamed to
original_name.
* linux-thread-db.c (try_thread_db_load_from_pdir_1): New variable
obj_name, use objfile_name for it, use the variable.
(try_thread_db_load_from_pdir, has_libpthread, thread_db_new_objfile):
Use objfile_name.
* machoread.c (macho_symtab_read, macho_check_dsym)
(macho_symfile_relocate): Likewise.
* maint.c (maintenance_translate_address): Likewise.
* minidebug.c (find_separate_debug_file_in_section): Likewise.
* minsyms.c (install_minimal_symbols): Likewise.
* objfiles.c (allocate_objfile): Use the objfile field name renamed to
original_name.
(filter_overlapping_sections): Use objfile_name.
(objfile_name): New function.
* objfiles.h (struct objfile): Rename field name to original_name.
(objfile_name): New prototype.
* printcmd.c (sym_info, address_info): Use objfile_name.
* probe.c (parse_probes, collect_probes, compare_probes)
(info_probes_for_ops): Likewise.
* progspace.c (clone_program_space): Likewise.
* psymtab.c (require_partial_symbols, dump_psymtab, allocate_psymtab)
(maintenance_info_psymtabs): Likewise.
* python/py-auto-load.c (gdbpy_load_auto_script_for_objfile)
(source_section_scripts): Likewise.
* python/py-objfile.c (objfpy_get_filename): Likewise.
* python/py-progspace.c (pspy_get_filename): Likewise.
* solib-aix.c (solib_aix_get_toc_value): Likewise.
* solib-som.c (match_main, som_solib_section_offsets): Likewise.
* solib.c (solib_read_symbols): Likewise.
* stabsread.c (scan_file_globals): Likewise.
* stap-probe.c (handle_stap_probe): Likewise.
* symfile.c (symbol_file_clear, separate_debug_file_exists)
(find_separate_debug_file_by_debuglink): Likewise.
(reread_symbols): Likewise. Use the objfile field name renamed to
original_name.
(allocate_symtab): Use objfile_name.
* symmisc.c (print_symbol_bcache_statistics, print_objfile_statistics)
(dump_objfile, dump_msymbols, dump_symtab_1)
(maintenance_print_msymbols, maintenance_print_objfiles)
(maintenance_info_symtabs, maintenance_check_symtabs): Likewise.
* target.c (target_translate_tls_address, target_info): Likewise.
* xcoffread.c (xcoff_initial_scan): Make variable name const. Use
objfile_name.
2013-09-24 15:57:38 +02:00
|
|
|
|
objfile_name (objfile), target_pid_to_str (ptid));
|
2006-10-10 05:17:53 +02:00
|
|
|
|
else
|
|
|
|
|
error (_("The inferior has not yet allocated storage for"
|
|
|
|
|
" thread-local variables in\n"
|
|
|
|
|
"the executable `%s'\n"
|
|
|
|
|
"for %s"),
|
Code cleanup: Add objfile_name accessor
gdb/
2013-09-24 Jan Kratochvil <jan.kratochvil@redhat.com>
Code cleanup: Add objfile_name accessor function.
* ada-lang.c (is_known_support_routine): Use objfile_name.
* auto-load.c (source_gdb_script_for_objfile)
(auto_load_objfile_script): Likewise.
* coffread.c (coff_symtab_read, read_one_sym): Likewise.
* dbxread.c (dbx_symfile_read): Likewise.
* dwarf2-frame.c (dwarf2_build_frame_info): Likewise.
* dwarf2loc.c (locexpr_describe_location_piece): Likewise.
* dwarf2read.c (dwarf2_get_dwz_file, dwarf2_read_index)
(dw2_symtab_iter_next, dw2_expand_symtabs_matching)
(lookup_dwp_signatured_type, lookup_dwo_unit)
(dwarf2_build_psymtabs_hard, scan_partial_symbols, process_queue)
(fixup_go_packaging, process_imported_unit_die, dwarf2_physname)
(read_import_statement, create_dwo_cu, open_and_init_dwp_file)
(lookup_dwo_cutu, read_call_site_scope, dwarf2_ranges_read)
(dwarf2_record_block_ranges, read_common_block, read_typedef)
(read_subrange_type, load_partial_dies, read_partial_die)
(read_addr_index_1, read_str_index, dwarf_decode_lines_1)
(die_containing_type, build_error_marker_type, lookup_die_type)
(follow_die_ref_or_sig, follow_die_ref, dwarf2_fetch_die_loc_sect_off)
(dwarf2_fetch_constant_bytes, follow_die_sig, get_signatured_type)
(get_DW_AT_signature_type, write_psymtabs_to_index)
(save_gdb_index_command): Likewise.
* elfread.c (find_separate_debug_file_by_buildid, elf_symfile_read):
Likewise.
* expprint.c (dump_subexp_body_standard): Likewise.
* gdbtypes.c (type_name_no_tag_or_error): Likewise.
* jit.c (jit_object_close_impl): Use the objfile field name renamed to
original_name.
* linux-thread-db.c (try_thread_db_load_from_pdir_1): New variable
obj_name, use objfile_name for it, use the variable.
(try_thread_db_load_from_pdir, has_libpthread, thread_db_new_objfile):
Use objfile_name.
* machoread.c (macho_symtab_read, macho_check_dsym)
(macho_symfile_relocate): Likewise.
* maint.c (maintenance_translate_address): Likewise.
* minidebug.c (find_separate_debug_file_in_section): Likewise.
* minsyms.c (install_minimal_symbols): Likewise.
* objfiles.c (allocate_objfile): Use the objfile field name renamed to
original_name.
(filter_overlapping_sections): Use objfile_name.
(objfile_name): New function.
* objfiles.h (struct objfile): Rename field name to original_name.
(objfile_name): New prototype.
* printcmd.c (sym_info, address_info): Use objfile_name.
* probe.c (parse_probes, collect_probes, compare_probes)
(info_probes_for_ops): Likewise.
* progspace.c (clone_program_space): Likewise.
* psymtab.c (require_partial_symbols, dump_psymtab, allocate_psymtab)
(maintenance_info_psymtabs): Likewise.
* python/py-auto-load.c (gdbpy_load_auto_script_for_objfile)
(source_section_scripts): Likewise.
* python/py-objfile.c (objfpy_get_filename): Likewise.
* python/py-progspace.c (pspy_get_filename): Likewise.
* solib-aix.c (solib_aix_get_toc_value): Likewise.
* solib-som.c (match_main, som_solib_section_offsets): Likewise.
* solib.c (solib_read_symbols): Likewise.
* stabsread.c (scan_file_globals): Likewise.
* stap-probe.c (handle_stap_probe): Likewise.
* symfile.c (symbol_file_clear, separate_debug_file_exists)
(find_separate_debug_file_by_debuglink): Likewise.
(reread_symbols): Likewise. Use the objfile field name renamed to
original_name.
(allocate_symtab): Use objfile_name.
* symmisc.c (print_symbol_bcache_statistics, print_objfile_statistics)
(dump_objfile, dump_msymbols, dump_symtab_1)
(maintenance_print_msymbols, maintenance_print_objfiles)
(maintenance_info_symtabs, maintenance_check_symtabs): Likewise.
* target.c (target_translate_tls_address, target_info): Likewise.
* xcoffread.c (xcoff_initial_scan): Make variable name const. Use
objfile_name.
2013-09-24 15:57:38 +02:00
|
|
|
|
objfile_name (objfile), target_pid_to_str (ptid));
|
2006-10-10 05:17:53 +02:00
|
|
|
|
break;
|
|
|
|
|
case TLS_GENERIC_ERROR:
|
|
|
|
|
if (objfile_is_library)
|
|
|
|
|
error (_("Cannot find thread-local storage for %s, "
|
|
|
|
|
"shared library %s:\n%s"),
|
|
|
|
|
target_pid_to_str (ptid),
|
Code cleanup: Add objfile_name accessor
gdb/
2013-09-24 Jan Kratochvil <jan.kratochvil@redhat.com>
Code cleanup: Add objfile_name accessor function.
* ada-lang.c (is_known_support_routine): Use objfile_name.
* auto-load.c (source_gdb_script_for_objfile)
(auto_load_objfile_script): Likewise.
* coffread.c (coff_symtab_read, read_one_sym): Likewise.
* dbxread.c (dbx_symfile_read): Likewise.
* dwarf2-frame.c (dwarf2_build_frame_info): Likewise.
* dwarf2loc.c (locexpr_describe_location_piece): Likewise.
* dwarf2read.c (dwarf2_get_dwz_file, dwarf2_read_index)
(dw2_symtab_iter_next, dw2_expand_symtabs_matching)
(lookup_dwp_signatured_type, lookup_dwo_unit)
(dwarf2_build_psymtabs_hard, scan_partial_symbols, process_queue)
(fixup_go_packaging, process_imported_unit_die, dwarf2_physname)
(read_import_statement, create_dwo_cu, open_and_init_dwp_file)
(lookup_dwo_cutu, read_call_site_scope, dwarf2_ranges_read)
(dwarf2_record_block_ranges, read_common_block, read_typedef)
(read_subrange_type, load_partial_dies, read_partial_die)
(read_addr_index_1, read_str_index, dwarf_decode_lines_1)
(die_containing_type, build_error_marker_type, lookup_die_type)
(follow_die_ref_or_sig, follow_die_ref, dwarf2_fetch_die_loc_sect_off)
(dwarf2_fetch_constant_bytes, follow_die_sig, get_signatured_type)
(get_DW_AT_signature_type, write_psymtabs_to_index)
(save_gdb_index_command): Likewise.
* elfread.c (find_separate_debug_file_by_buildid, elf_symfile_read):
Likewise.
* expprint.c (dump_subexp_body_standard): Likewise.
* gdbtypes.c (type_name_no_tag_or_error): Likewise.
* jit.c (jit_object_close_impl): Use the objfile field name renamed to
original_name.
* linux-thread-db.c (try_thread_db_load_from_pdir_1): New variable
obj_name, use objfile_name for it, use the variable.
(try_thread_db_load_from_pdir, has_libpthread, thread_db_new_objfile):
Use objfile_name.
* machoread.c (macho_symtab_read, macho_check_dsym)
(macho_symfile_relocate): Likewise.
* maint.c (maintenance_translate_address): Likewise.
* minidebug.c (find_separate_debug_file_in_section): Likewise.
* minsyms.c (install_minimal_symbols): Likewise.
* objfiles.c (allocate_objfile): Use the objfile field name renamed to
original_name.
(filter_overlapping_sections): Use objfile_name.
(objfile_name): New function.
* objfiles.h (struct objfile): Rename field name to original_name.
(objfile_name): New prototype.
* printcmd.c (sym_info, address_info): Use objfile_name.
* probe.c (parse_probes, collect_probes, compare_probes)
(info_probes_for_ops): Likewise.
* progspace.c (clone_program_space): Likewise.
* psymtab.c (require_partial_symbols, dump_psymtab, allocate_psymtab)
(maintenance_info_psymtabs): Likewise.
* python/py-auto-load.c (gdbpy_load_auto_script_for_objfile)
(source_section_scripts): Likewise.
* python/py-objfile.c (objfpy_get_filename): Likewise.
* python/py-progspace.c (pspy_get_filename): Likewise.
* solib-aix.c (solib_aix_get_toc_value): Likewise.
* solib-som.c (match_main, som_solib_section_offsets): Likewise.
* solib.c (solib_read_symbols): Likewise.
* stabsread.c (scan_file_globals): Likewise.
* stap-probe.c (handle_stap_probe): Likewise.
* symfile.c (symbol_file_clear, separate_debug_file_exists)
(find_separate_debug_file_by_debuglink): Likewise.
(reread_symbols): Likewise. Use the objfile field name renamed to
original_name.
(allocate_symtab): Use objfile_name.
* symmisc.c (print_symbol_bcache_statistics, print_objfile_statistics)
(dump_objfile, dump_msymbols, dump_symtab_1)
(maintenance_print_msymbols, maintenance_print_objfiles)
(maintenance_info_symtabs, maintenance_check_symtabs): Likewise.
* target.c (target_translate_tls_address, target_info): Likewise.
* xcoffread.c (xcoff_initial_scan): Make variable name const. Use
objfile_name.
2013-09-24 15:57:38 +02:00
|
|
|
|
objfile_name (objfile), ex.message);
|
2006-10-10 05:17:53 +02:00
|
|
|
|
else
|
|
|
|
|
error (_("Cannot find thread-local storage for %s, "
|
|
|
|
|
"executable file %s:\n%s"),
|
|
|
|
|
target_pid_to_str (ptid),
|
Code cleanup: Add objfile_name accessor
gdb/
2013-09-24 Jan Kratochvil <jan.kratochvil@redhat.com>
Code cleanup: Add objfile_name accessor function.
* ada-lang.c (is_known_support_routine): Use objfile_name.
* auto-load.c (source_gdb_script_for_objfile)
(auto_load_objfile_script): Likewise.
* coffread.c (coff_symtab_read, read_one_sym): Likewise.
* dbxread.c (dbx_symfile_read): Likewise.
* dwarf2-frame.c (dwarf2_build_frame_info): Likewise.
* dwarf2loc.c (locexpr_describe_location_piece): Likewise.
* dwarf2read.c (dwarf2_get_dwz_file, dwarf2_read_index)
(dw2_symtab_iter_next, dw2_expand_symtabs_matching)
(lookup_dwp_signatured_type, lookup_dwo_unit)
(dwarf2_build_psymtabs_hard, scan_partial_symbols, process_queue)
(fixup_go_packaging, process_imported_unit_die, dwarf2_physname)
(read_import_statement, create_dwo_cu, open_and_init_dwp_file)
(lookup_dwo_cutu, read_call_site_scope, dwarf2_ranges_read)
(dwarf2_record_block_ranges, read_common_block, read_typedef)
(read_subrange_type, load_partial_dies, read_partial_die)
(read_addr_index_1, read_str_index, dwarf_decode_lines_1)
(die_containing_type, build_error_marker_type, lookup_die_type)
(follow_die_ref_or_sig, follow_die_ref, dwarf2_fetch_die_loc_sect_off)
(dwarf2_fetch_constant_bytes, follow_die_sig, get_signatured_type)
(get_DW_AT_signature_type, write_psymtabs_to_index)
(save_gdb_index_command): Likewise.
* elfread.c (find_separate_debug_file_by_buildid, elf_symfile_read):
Likewise.
* expprint.c (dump_subexp_body_standard): Likewise.
* gdbtypes.c (type_name_no_tag_or_error): Likewise.
* jit.c (jit_object_close_impl): Use the objfile field name renamed to
original_name.
* linux-thread-db.c (try_thread_db_load_from_pdir_1): New variable
obj_name, use objfile_name for it, use the variable.
(try_thread_db_load_from_pdir, has_libpthread, thread_db_new_objfile):
Use objfile_name.
* machoread.c (macho_symtab_read, macho_check_dsym)
(macho_symfile_relocate): Likewise.
* maint.c (maintenance_translate_address): Likewise.
* minidebug.c (find_separate_debug_file_in_section): Likewise.
* minsyms.c (install_minimal_symbols): Likewise.
* objfiles.c (allocate_objfile): Use the objfile field name renamed to
original_name.
(filter_overlapping_sections): Use objfile_name.
(objfile_name): New function.
* objfiles.h (struct objfile): Rename field name to original_name.
(objfile_name): New prototype.
* printcmd.c (sym_info, address_info): Use objfile_name.
* probe.c (parse_probes, collect_probes, compare_probes)
(info_probes_for_ops): Likewise.
* progspace.c (clone_program_space): Likewise.
* psymtab.c (require_partial_symbols, dump_psymtab, allocate_psymtab)
(maintenance_info_psymtabs): Likewise.
* python/py-auto-load.c (gdbpy_load_auto_script_for_objfile)
(source_section_scripts): Likewise.
* python/py-objfile.c (objfpy_get_filename): Likewise.
* python/py-progspace.c (pspy_get_filename): Likewise.
* solib-aix.c (solib_aix_get_toc_value): Likewise.
* solib-som.c (match_main, som_solib_section_offsets): Likewise.
* solib.c (solib_read_symbols): Likewise.
* stabsread.c (scan_file_globals): Likewise.
* stap-probe.c (handle_stap_probe): Likewise.
* symfile.c (symbol_file_clear, separate_debug_file_exists)
(find_separate_debug_file_by_debuglink): Likewise.
(reread_symbols): Likewise. Use the objfile field name renamed to
original_name.
(allocate_symtab): Use objfile_name.
* symmisc.c (print_symbol_bcache_statistics, print_objfile_statistics)
(dump_objfile, dump_msymbols, dump_symtab_1)
(maintenance_print_msymbols, maintenance_print_objfiles)
(maintenance_info_symtabs, maintenance_check_symtabs): Likewise.
* target.c (target_translate_tls_address, target_info): Likewise.
* xcoffread.c (xcoff_initial_scan): Make variable name const. Use
objfile_name.
2013-09-24 15:57:38 +02:00
|
|
|
|
objfile_name (objfile), ex.message);
|
2006-10-10 05:17:53 +02:00
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
throw_exception (ex);
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
Split TRY_CATCH into TRY + CATCH
This patch splits the TRY_CATCH macro into three, so that we go from
this:
~~~
volatile gdb_exception ex;
TRY_CATCH (ex, RETURN_MASK_ERROR)
{
}
if (ex.reason < 0)
{
}
~~~
to this:
~~~
TRY
{
}
CATCH (ex, RETURN_MASK_ERROR)
{
}
END_CATCH
~~~
Thus, we'll be getting rid of the local volatile exception object, and
declaring the caught exception in the catch block.
This allows reimplementing TRY/CATCH in terms of C++ exceptions when
building in C++ mode, while still allowing to build GDB in C mode
(using setjmp/longjmp), as a transition step.
TBC, after this patch, is it _not_ valid to have code between the TRY
and the CATCH blocks, like:
TRY
{
}
// some code here.
CATCH (ex, RETURN_MASK_ERROR)
{
}
END_CATCH
Just like it isn't valid to do that with C++'s native try/catch.
By switching to creating the exception object inside the CATCH block
scope, we can get rid of all the explicitly allocated volatile
exception objects all over the tree, and map the CATCH block more
directly to C++'s catch blocks.
The majority of the TRY_CATCH -> TRY+CATCH+END_CATCH conversion was
done with a script, rerun from scratch at every rebase, no manual
editing involved. After the mechanical conversion, a few places
needed manual intervention, to fix preexisting cases where we were
using the exception object outside of the TRY_CATCH block, and cases
where we were using "else" after a 'if (ex.reason) < 0)' [a CATCH
after this patch]. The result was folded into this patch so that GDB
still builds at each incremental step.
END_CATCH is necessary for two reasons:
First, because we name the exception object in the CATCH block, which
requires creating a scope, which in turn must be closed somewhere.
Declaring the exception variable in the initializer field of a for
block, like:
#define CATCH(EXCEPTION, mask) \
for (struct gdb_exception EXCEPTION; \
exceptions_state_mc_catch (&EXCEPTION, MASK); \
EXCEPTION = exception_none)
would avoid needing END_CATCH, but alas, in C mode, we build with C90,
which doesn't allow mixed declarations and code.
Second, because when TRY/CATCH are wired to real C++ try/catch, as
long as we need to handle cleanup chains, even if there's no CATCH
block that wants to catch the exception, we need for stop at every
frame in the unwind chain and run cleanups, then rethrow. That will
be done in END_CATCH.
After we require C++, we'll still need TRY/CATCH/END_CATCH until
cleanups are completely phased out -- TRY/CATCH in C++ mode will
save/restore the current cleanup chain, like in C mode, and END_CATCH
catches otherwise uncaugh exceptions, runs cleanups and rethrows, so
that C++ cleanups and exceptions can coexist.
IMO, this still makes the TRY/CATCH code look a bit more like a
newcomer would expect, so IMO worth it even if we weren't considering
C++.
gdb/ChangeLog.
2015-03-07 Pedro Alves <palves@redhat.com>
* common/common-exceptions.c (struct catcher) <exception>: No
longer a pointer to volatile exception. Now an exception value.
<mask>: Delete field.
(exceptions_state_mc_init): Remove all parameters. Adjust.
(exceptions_state_mc): No longer pop the catcher here.
(exceptions_state_mc_catch): New function.
(throw_exception): Adjust.
* common/common-exceptions.h (exceptions_state_mc_init): Remove
all parameters.
(exceptions_state_mc_catch): Declare.
(TRY_CATCH): Rename to ...
(TRY): ... this. Remove EXCEPTION and MASK parameters.
(CATCH, END_CATCH): New.
All callers adjusted.
gdb/gdbserver/ChangeLog:
2015-03-07 Pedro Alves <palves@redhat.com>
Adjust all callers of TRY_CATCH to use TRY/CATCH/END_CATCH
instead.
2015-03-07 16:14:14 +01:00
|
|
|
|
END_CATCH
|
2006-10-10 05:17:53 +02:00
|
|
|
|
}
|
|
|
|
|
/* It wouldn't be wrong here to try a gdbarch method, too; finding
|
|
|
|
|
TLS is an ABI-specific thing. But we don't do that yet. */
|
|
|
|
|
else
|
|
|
|
|
error (_("Cannot find thread-local variables on this target"));
|
|
|
|
|
|
|
|
|
|
return addr;
|
|
|
|
|
}
|
|
|
|
|
|
PR gdb/15871: Unavailable entry value is not shown correctly
In entry-values.exp, we have a test where the entry value of 'j' is
unavailable, so it is expected that printing j@entry yields
"<unavailable>". However, the actual output is:
(gdb) frame
#0 0x0000000000400540 in foo (i=0, i@entry=2, j=2, j@entry=<error reading variable: Cannot access memory at address 0x6009e8>)
The error is thrown here:
#0 throw_it (reason=RETURN_ERROR, error=MEMORY_ERROR, fmt=0x8cd550 "Cannot access memory at address %s", ap=0x7fffffffc8e8) at ../../src/gdb/exceptions.c:373
#1 0x00000000005e2f9c in throw_error (error=MEMORY_ERROR, fmt=0x8cd550 "Cannot access memory at address %s") at ../../src/gdb/exceptions.c:422
#2 0x0000000000673a5f in memory_error (status=5, memaddr=6293992) at ../../src/gdb/corefile.c:204
#3 0x0000000000673aea in read_memory (memaddr=6293992, myaddr=0x7fffffffca60 "\200\316\377\377\377\177", len=4) at ../../src/gdb/corefile.c:223
#4 0x00000000006784d1 in dwarf_expr_read_mem (baton=0x7fffffffcd50, buf=0x7fffffffca60 "\200\316\377\377\377\177", addr=6293992, len=4) at ../../src/gdb/dwarf2loc.c:334
#5 0x000000000067645e in execute_stack_op (ctx=0x1409480, op_ptr=0x7fffffffce87 "\237<\005@", op_end=0x7fffffffce88 "<\005@") at ../../src/gdb/dwarf2expr.c:1045
#6 0x0000000000674e29 in dwarf_expr_eval (ctx=0x1409480, addr=0x7fffffffce80 "\003\350\t`", len=8) at ../../src/gdb/dwarf2expr.c:364
#7 0x000000000067c5b2 in dwarf2_evaluate_loc_desc_full (type=0x10876d0, frame=0xd8ecc0, data=0x7fffffffce80 "\003\350\t`", size=8, per_cu=0xf24c40, byte_offset=0)
at ../../src/gdb/dwarf2loc.c:2236
#8 0x000000000067cc65 in dwarf2_evaluate_loc_desc (type=0x10876d0, frame=0xd8ecc0, data=0x7fffffffce80 "\003\350\t`", size=8, per_cu=0xf24c40)
at ../../src/gdb/dwarf2loc.c:2407
#9 0x000000000067a5d4 in dwarf_entry_parameter_to_value (parameter=0x13a7960, deref_size=18446744073709551615, type=0x10876d0, caller_frame=0xd8ecc0, per_cu=0xf24c40)
at ../../src/gdb/dwarf2loc.c:1160
#10 0x000000000067a962 in value_of_dwarf_reg_entry (type=0x10876d0, frame=0xd8de70, kind=CALL_SITE_PARAMETER_DWARF_REG, kind_u=...) at ../../src/gdb/dwarf2loc.c:1310
#11 0x000000000067aaca in value_of_dwarf_block_entry (type=0x10876d0, frame=0xd8de70, block=0xf1c2d4 "Q", block_len=1) at ../../src/gdb/dwarf2loc.c:1363
#12 0x000000000067e7c9 in locexpr_read_variable_at_entry (symbol=0x13a7540, frame=0xd8de70) at ../../src/gdb/dwarf2loc.c:3326
#13 0x00000000005daab6 in read_frame_arg (sym=0x13a7540, frame=0xd8de70, argp=0x7fffffffd0e0, entryargp=0x7fffffffd100) at ../../src/gdb/stack.c:362
#14 0x00000000005db384 in print_frame_args (func=0x13a7470, frame=0xd8de70, num=-1, stream=0xea3890) at ../../src/gdb/stack.c:669
#15 0x00000000005dc338 in print_frame (frame=0xd8de70, print_level=1, print_what=SRC_AND_LOC, print_args=1, sal=...) at ../../src/gdb/stack.c:1199
#16 0x00000000005db8ee in print_frame_info (frame=0xd8de70, print_level=1, print_what=SRC_AND_LOC, print_args=1) at ../../src/gdb/stack.c:851
#17 0x00000000005da2bb in print_stack_frame (frame=0xd8de70, print_level=1, print_what=SRC_AND_LOC) at ../../src/gdb/stack.c:169
#18 0x00000000005de236 in frame_command (level_exp=0x0, from_tty=1) at ../../src/gdb/stack.c:2265
dwarf2_evaluate_loc_desc_full (frame #7) knows to handle
NOT_AVAILABLE_ERROR errors, but read_memory always throws
a generic error.
Presently, only the value machinery knows to handle unavailable
memory. We need to push the awareness down to the target_xfer layer,
making it return a finer grained error indication. We can only return
a generic -1 nowadays, which leaves the upper layers with no clue on
why the xfer failed. Use target_xfer_partial directly, rather than
propagating the error through target_read_memory so as to get a better
address to display in the error message.
(target_read_memory & friends build on top of target_read (thus the
target_xfer machinery), but turn all errors to EIO, an errno value. I
think this is a mistake, and we'd better convert all these to return a
target_xfer_error too, but that can be done separately. I looked
around a bit over memory_error calls, and the need to handle random
errno values, other than the EIOs gdb itself hardcodes, probably comes
(only) from deprecated_xfer_memory, which uses errno for error
indication, but I didn't look exhaustively. We should really get rid
of deprecated_xfer_memory and of passing down errno values as error
indication in target_read & friends methods).
Tested on x86_64 Fedora 17, native and gdbserver. Fixes the test in
the PR, which will be added to the testsuite later.
gdb/
2013-08-22 Pedro Alves <palves@redhat.com>
PR gdb/15871
* corefile.c (target_xfer_memory_error): New function.
(memory_error): Defer EIO to target_memory_error.
(read_memory): Use target_xfer_partial, and handle finer-grained
target xfer errors.
* target.c (target_xfer_error_to_string): New function.
(memory_xfer_partial_1): If memory is known to be
unavailable, return TARGET_XFER_E_UNAVAILABLE instead of -1.
(target_xfer_partial): Make extern.
* target.h (enum target_xfer_error): New enum.
(target_xfer_error_to_string): Declare function.
(target_xfer_partial): Declare function.
(struct target_ops) <xfer_partial>: Adjust describing comment.
2013-08-22 12:00:05 +02:00
|
|
|
|
const char *
|
2014-02-23 07:27:17 +01:00
|
|
|
|
target_xfer_status_to_string (enum target_xfer_status status)
|
PR gdb/15871: Unavailable entry value is not shown correctly
In entry-values.exp, we have a test where the entry value of 'j' is
unavailable, so it is expected that printing j@entry yields
"<unavailable>". However, the actual output is:
(gdb) frame
#0 0x0000000000400540 in foo (i=0, i@entry=2, j=2, j@entry=<error reading variable: Cannot access memory at address 0x6009e8>)
The error is thrown here:
#0 throw_it (reason=RETURN_ERROR, error=MEMORY_ERROR, fmt=0x8cd550 "Cannot access memory at address %s", ap=0x7fffffffc8e8) at ../../src/gdb/exceptions.c:373
#1 0x00000000005e2f9c in throw_error (error=MEMORY_ERROR, fmt=0x8cd550 "Cannot access memory at address %s") at ../../src/gdb/exceptions.c:422
#2 0x0000000000673a5f in memory_error (status=5, memaddr=6293992) at ../../src/gdb/corefile.c:204
#3 0x0000000000673aea in read_memory (memaddr=6293992, myaddr=0x7fffffffca60 "\200\316\377\377\377\177", len=4) at ../../src/gdb/corefile.c:223
#4 0x00000000006784d1 in dwarf_expr_read_mem (baton=0x7fffffffcd50, buf=0x7fffffffca60 "\200\316\377\377\377\177", addr=6293992, len=4) at ../../src/gdb/dwarf2loc.c:334
#5 0x000000000067645e in execute_stack_op (ctx=0x1409480, op_ptr=0x7fffffffce87 "\237<\005@", op_end=0x7fffffffce88 "<\005@") at ../../src/gdb/dwarf2expr.c:1045
#6 0x0000000000674e29 in dwarf_expr_eval (ctx=0x1409480, addr=0x7fffffffce80 "\003\350\t`", len=8) at ../../src/gdb/dwarf2expr.c:364
#7 0x000000000067c5b2 in dwarf2_evaluate_loc_desc_full (type=0x10876d0, frame=0xd8ecc0, data=0x7fffffffce80 "\003\350\t`", size=8, per_cu=0xf24c40, byte_offset=0)
at ../../src/gdb/dwarf2loc.c:2236
#8 0x000000000067cc65 in dwarf2_evaluate_loc_desc (type=0x10876d0, frame=0xd8ecc0, data=0x7fffffffce80 "\003\350\t`", size=8, per_cu=0xf24c40)
at ../../src/gdb/dwarf2loc.c:2407
#9 0x000000000067a5d4 in dwarf_entry_parameter_to_value (parameter=0x13a7960, deref_size=18446744073709551615, type=0x10876d0, caller_frame=0xd8ecc0, per_cu=0xf24c40)
at ../../src/gdb/dwarf2loc.c:1160
#10 0x000000000067a962 in value_of_dwarf_reg_entry (type=0x10876d0, frame=0xd8de70, kind=CALL_SITE_PARAMETER_DWARF_REG, kind_u=...) at ../../src/gdb/dwarf2loc.c:1310
#11 0x000000000067aaca in value_of_dwarf_block_entry (type=0x10876d0, frame=0xd8de70, block=0xf1c2d4 "Q", block_len=1) at ../../src/gdb/dwarf2loc.c:1363
#12 0x000000000067e7c9 in locexpr_read_variable_at_entry (symbol=0x13a7540, frame=0xd8de70) at ../../src/gdb/dwarf2loc.c:3326
#13 0x00000000005daab6 in read_frame_arg (sym=0x13a7540, frame=0xd8de70, argp=0x7fffffffd0e0, entryargp=0x7fffffffd100) at ../../src/gdb/stack.c:362
#14 0x00000000005db384 in print_frame_args (func=0x13a7470, frame=0xd8de70, num=-1, stream=0xea3890) at ../../src/gdb/stack.c:669
#15 0x00000000005dc338 in print_frame (frame=0xd8de70, print_level=1, print_what=SRC_AND_LOC, print_args=1, sal=...) at ../../src/gdb/stack.c:1199
#16 0x00000000005db8ee in print_frame_info (frame=0xd8de70, print_level=1, print_what=SRC_AND_LOC, print_args=1) at ../../src/gdb/stack.c:851
#17 0x00000000005da2bb in print_stack_frame (frame=0xd8de70, print_level=1, print_what=SRC_AND_LOC) at ../../src/gdb/stack.c:169
#18 0x00000000005de236 in frame_command (level_exp=0x0, from_tty=1) at ../../src/gdb/stack.c:2265
dwarf2_evaluate_loc_desc_full (frame #7) knows to handle
NOT_AVAILABLE_ERROR errors, but read_memory always throws
a generic error.
Presently, only the value machinery knows to handle unavailable
memory. We need to push the awareness down to the target_xfer layer,
making it return a finer grained error indication. We can only return
a generic -1 nowadays, which leaves the upper layers with no clue on
why the xfer failed. Use target_xfer_partial directly, rather than
propagating the error through target_read_memory so as to get a better
address to display in the error message.
(target_read_memory & friends build on top of target_read (thus the
target_xfer machinery), but turn all errors to EIO, an errno value. I
think this is a mistake, and we'd better convert all these to return a
target_xfer_error too, but that can be done separately. I looked
around a bit over memory_error calls, and the need to handle random
errno values, other than the EIOs gdb itself hardcodes, probably comes
(only) from deprecated_xfer_memory, which uses errno for error
indication, but I didn't look exhaustively. We should really get rid
of deprecated_xfer_memory and of passing down errno values as error
indication in target_read & friends methods).
Tested on x86_64 Fedora 17, native and gdbserver. Fixes the test in
the PR, which will be added to the testsuite later.
gdb/
2013-08-22 Pedro Alves <palves@redhat.com>
PR gdb/15871
* corefile.c (target_xfer_memory_error): New function.
(memory_error): Defer EIO to target_memory_error.
(read_memory): Use target_xfer_partial, and handle finer-grained
target xfer errors.
* target.c (target_xfer_error_to_string): New function.
(memory_xfer_partial_1): If memory is known to be
unavailable, return TARGET_XFER_E_UNAVAILABLE instead of -1.
(target_xfer_partial): Make extern.
* target.h (enum target_xfer_error): New enum.
(target_xfer_error_to_string): Declare function.
(target_xfer_partial): Declare function.
(struct target_ops) <xfer_partial>: Adjust describing comment.
2013-08-22 12:00:05 +02:00
|
|
|
|
{
|
|
|
|
|
#define CASE(X) case X: return #X
|
2014-02-23 07:27:17 +01:00
|
|
|
|
switch (status)
|
PR gdb/15871: Unavailable entry value is not shown correctly
In entry-values.exp, we have a test where the entry value of 'j' is
unavailable, so it is expected that printing j@entry yields
"<unavailable>". However, the actual output is:
(gdb) frame
#0 0x0000000000400540 in foo (i=0, i@entry=2, j=2, j@entry=<error reading variable: Cannot access memory at address 0x6009e8>)
The error is thrown here:
#0 throw_it (reason=RETURN_ERROR, error=MEMORY_ERROR, fmt=0x8cd550 "Cannot access memory at address %s", ap=0x7fffffffc8e8) at ../../src/gdb/exceptions.c:373
#1 0x00000000005e2f9c in throw_error (error=MEMORY_ERROR, fmt=0x8cd550 "Cannot access memory at address %s") at ../../src/gdb/exceptions.c:422
#2 0x0000000000673a5f in memory_error (status=5, memaddr=6293992) at ../../src/gdb/corefile.c:204
#3 0x0000000000673aea in read_memory (memaddr=6293992, myaddr=0x7fffffffca60 "\200\316\377\377\377\177", len=4) at ../../src/gdb/corefile.c:223
#4 0x00000000006784d1 in dwarf_expr_read_mem (baton=0x7fffffffcd50, buf=0x7fffffffca60 "\200\316\377\377\377\177", addr=6293992, len=4) at ../../src/gdb/dwarf2loc.c:334
#5 0x000000000067645e in execute_stack_op (ctx=0x1409480, op_ptr=0x7fffffffce87 "\237<\005@", op_end=0x7fffffffce88 "<\005@") at ../../src/gdb/dwarf2expr.c:1045
#6 0x0000000000674e29 in dwarf_expr_eval (ctx=0x1409480, addr=0x7fffffffce80 "\003\350\t`", len=8) at ../../src/gdb/dwarf2expr.c:364
#7 0x000000000067c5b2 in dwarf2_evaluate_loc_desc_full (type=0x10876d0, frame=0xd8ecc0, data=0x7fffffffce80 "\003\350\t`", size=8, per_cu=0xf24c40, byte_offset=0)
at ../../src/gdb/dwarf2loc.c:2236
#8 0x000000000067cc65 in dwarf2_evaluate_loc_desc (type=0x10876d0, frame=0xd8ecc0, data=0x7fffffffce80 "\003\350\t`", size=8, per_cu=0xf24c40)
at ../../src/gdb/dwarf2loc.c:2407
#9 0x000000000067a5d4 in dwarf_entry_parameter_to_value (parameter=0x13a7960, deref_size=18446744073709551615, type=0x10876d0, caller_frame=0xd8ecc0, per_cu=0xf24c40)
at ../../src/gdb/dwarf2loc.c:1160
#10 0x000000000067a962 in value_of_dwarf_reg_entry (type=0x10876d0, frame=0xd8de70, kind=CALL_SITE_PARAMETER_DWARF_REG, kind_u=...) at ../../src/gdb/dwarf2loc.c:1310
#11 0x000000000067aaca in value_of_dwarf_block_entry (type=0x10876d0, frame=0xd8de70, block=0xf1c2d4 "Q", block_len=1) at ../../src/gdb/dwarf2loc.c:1363
#12 0x000000000067e7c9 in locexpr_read_variable_at_entry (symbol=0x13a7540, frame=0xd8de70) at ../../src/gdb/dwarf2loc.c:3326
#13 0x00000000005daab6 in read_frame_arg (sym=0x13a7540, frame=0xd8de70, argp=0x7fffffffd0e0, entryargp=0x7fffffffd100) at ../../src/gdb/stack.c:362
#14 0x00000000005db384 in print_frame_args (func=0x13a7470, frame=0xd8de70, num=-1, stream=0xea3890) at ../../src/gdb/stack.c:669
#15 0x00000000005dc338 in print_frame (frame=0xd8de70, print_level=1, print_what=SRC_AND_LOC, print_args=1, sal=...) at ../../src/gdb/stack.c:1199
#16 0x00000000005db8ee in print_frame_info (frame=0xd8de70, print_level=1, print_what=SRC_AND_LOC, print_args=1) at ../../src/gdb/stack.c:851
#17 0x00000000005da2bb in print_stack_frame (frame=0xd8de70, print_level=1, print_what=SRC_AND_LOC) at ../../src/gdb/stack.c:169
#18 0x00000000005de236 in frame_command (level_exp=0x0, from_tty=1) at ../../src/gdb/stack.c:2265
dwarf2_evaluate_loc_desc_full (frame #7) knows to handle
NOT_AVAILABLE_ERROR errors, but read_memory always throws
a generic error.
Presently, only the value machinery knows to handle unavailable
memory. We need to push the awareness down to the target_xfer layer,
making it return a finer grained error indication. We can only return
a generic -1 nowadays, which leaves the upper layers with no clue on
why the xfer failed. Use target_xfer_partial directly, rather than
propagating the error through target_read_memory so as to get a better
address to display in the error message.
(target_read_memory & friends build on top of target_read (thus the
target_xfer machinery), but turn all errors to EIO, an errno value. I
think this is a mistake, and we'd better convert all these to return a
target_xfer_error too, but that can be done separately. I looked
around a bit over memory_error calls, and the need to handle random
errno values, other than the EIOs gdb itself hardcodes, probably comes
(only) from deprecated_xfer_memory, which uses errno for error
indication, but I didn't look exhaustively. We should really get rid
of deprecated_xfer_memory and of passing down errno values as error
indication in target_read & friends methods).
Tested on x86_64 Fedora 17, native and gdbserver. Fixes the test in
the PR, which will be added to the testsuite later.
gdb/
2013-08-22 Pedro Alves <palves@redhat.com>
PR gdb/15871
* corefile.c (target_xfer_memory_error): New function.
(memory_error): Defer EIO to target_memory_error.
(read_memory): Use target_xfer_partial, and handle finer-grained
target xfer errors.
* target.c (target_xfer_error_to_string): New function.
(memory_xfer_partial_1): If memory is known to be
unavailable, return TARGET_XFER_E_UNAVAILABLE instead of -1.
(target_xfer_partial): Make extern.
* target.h (enum target_xfer_error): New enum.
(target_xfer_error_to_string): Declare function.
(target_xfer_partial): Declare function.
(struct target_ops) <xfer_partial>: Adjust describing comment.
2013-08-22 12:00:05 +02:00
|
|
|
|
{
|
|
|
|
|
CASE(TARGET_XFER_E_IO);
|
2014-02-23 07:34:29 +01:00
|
|
|
|
CASE(TARGET_XFER_UNAVAILABLE);
|
PR gdb/15871: Unavailable entry value is not shown correctly
In entry-values.exp, we have a test where the entry value of 'j' is
unavailable, so it is expected that printing j@entry yields
"<unavailable>". However, the actual output is:
(gdb) frame
#0 0x0000000000400540 in foo (i=0, i@entry=2, j=2, j@entry=<error reading variable: Cannot access memory at address 0x6009e8>)
The error is thrown here:
#0 throw_it (reason=RETURN_ERROR, error=MEMORY_ERROR, fmt=0x8cd550 "Cannot access memory at address %s", ap=0x7fffffffc8e8) at ../../src/gdb/exceptions.c:373
#1 0x00000000005e2f9c in throw_error (error=MEMORY_ERROR, fmt=0x8cd550 "Cannot access memory at address %s") at ../../src/gdb/exceptions.c:422
#2 0x0000000000673a5f in memory_error (status=5, memaddr=6293992) at ../../src/gdb/corefile.c:204
#3 0x0000000000673aea in read_memory (memaddr=6293992, myaddr=0x7fffffffca60 "\200\316\377\377\377\177", len=4) at ../../src/gdb/corefile.c:223
#4 0x00000000006784d1 in dwarf_expr_read_mem (baton=0x7fffffffcd50, buf=0x7fffffffca60 "\200\316\377\377\377\177", addr=6293992, len=4) at ../../src/gdb/dwarf2loc.c:334
#5 0x000000000067645e in execute_stack_op (ctx=0x1409480, op_ptr=0x7fffffffce87 "\237<\005@", op_end=0x7fffffffce88 "<\005@") at ../../src/gdb/dwarf2expr.c:1045
#6 0x0000000000674e29 in dwarf_expr_eval (ctx=0x1409480, addr=0x7fffffffce80 "\003\350\t`", len=8) at ../../src/gdb/dwarf2expr.c:364
#7 0x000000000067c5b2 in dwarf2_evaluate_loc_desc_full (type=0x10876d0, frame=0xd8ecc0, data=0x7fffffffce80 "\003\350\t`", size=8, per_cu=0xf24c40, byte_offset=0)
at ../../src/gdb/dwarf2loc.c:2236
#8 0x000000000067cc65 in dwarf2_evaluate_loc_desc (type=0x10876d0, frame=0xd8ecc0, data=0x7fffffffce80 "\003\350\t`", size=8, per_cu=0xf24c40)
at ../../src/gdb/dwarf2loc.c:2407
#9 0x000000000067a5d4 in dwarf_entry_parameter_to_value (parameter=0x13a7960, deref_size=18446744073709551615, type=0x10876d0, caller_frame=0xd8ecc0, per_cu=0xf24c40)
at ../../src/gdb/dwarf2loc.c:1160
#10 0x000000000067a962 in value_of_dwarf_reg_entry (type=0x10876d0, frame=0xd8de70, kind=CALL_SITE_PARAMETER_DWARF_REG, kind_u=...) at ../../src/gdb/dwarf2loc.c:1310
#11 0x000000000067aaca in value_of_dwarf_block_entry (type=0x10876d0, frame=0xd8de70, block=0xf1c2d4 "Q", block_len=1) at ../../src/gdb/dwarf2loc.c:1363
#12 0x000000000067e7c9 in locexpr_read_variable_at_entry (symbol=0x13a7540, frame=0xd8de70) at ../../src/gdb/dwarf2loc.c:3326
#13 0x00000000005daab6 in read_frame_arg (sym=0x13a7540, frame=0xd8de70, argp=0x7fffffffd0e0, entryargp=0x7fffffffd100) at ../../src/gdb/stack.c:362
#14 0x00000000005db384 in print_frame_args (func=0x13a7470, frame=0xd8de70, num=-1, stream=0xea3890) at ../../src/gdb/stack.c:669
#15 0x00000000005dc338 in print_frame (frame=0xd8de70, print_level=1, print_what=SRC_AND_LOC, print_args=1, sal=...) at ../../src/gdb/stack.c:1199
#16 0x00000000005db8ee in print_frame_info (frame=0xd8de70, print_level=1, print_what=SRC_AND_LOC, print_args=1) at ../../src/gdb/stack.c:851
#17 0x00000000005da2bb in print_stack_frame (frame=0xd8de70, print_level=1, print_what=SRC_AND_LOC) at ../../src/gdb/stack.c:169
#18 0x00000000005de236 in frame_command (level_exp=0x0, from_tty=1) at ../../src/gdb/stack.c:2265
dwarf2_evaluate_loc_desc_full (frame #7) knows to handle
NOT_AVAILABLE_ERROR errors, but read_memory always throws
a generic error.
Presently, only the value machinery knows to handle unavailable
memory. We need to push the awareness down to the target_xfer layer,
making it return a finer grained error indication. We can only return
a generic -1 nowadays, which leaves the upper layers with no clue on
why the xfer failed. Use target_xfer_partial directly, rather than
propagating the error through target_read_memory so as to get a better
address to display in the error message.
(target_read_memory & friends build on top of target_read (thus the
target_xfer machinery), but turn all errors to EIO, an errno value. I
think this is a mistake, and we'd better convert all these to return a
target_xfer_error too, but that can be done separately. I looked
around a bit over memory_error calls, and the need to handle random
errno values, other than the EIOs gdb itself hardcodes, probably comes
(only) from deprecated_xfer_memory, which uses errno for error
indication, but I didn't look exhaustively. We should really get rid
of deprecated_xfer_memory and of passing down errno values as error
indication in target_read & friends methods).
Tested on x86_64 Fedora 17, native and gdbserver. Fixes the test in
the PR, which will be added to the testsuite later.
gdb/
2013-08-22 Pedro Alves <palves@redhat.com>
PR gdb/15871
* corefile.c (target_xfer_memory_error): New function.
(memory_error): Defer EIO to target_memory_error.
(read_memory): Use target_xfer_partial, and handle finer-grained
target xfer errors.
* target.c (target_xfer_error_to_string): New function.
(memory_xfer_partial_1): If memory is known to be
unavailable, return TARGET_XFER_E_UNAVAILABLE instead of -1.
(target_xfer_partial): Make extern.
* target.h (enum target_xfer_error): New enum.
(target_xfer_error_to_string): Declare function.
(target_xfer_partial): Declare function.
(struct target_ops) <xfer_partial>: Adjust describing comment.
2013-08-22 12:00:05 +02:00
|
|
|
|
default:
|
|
|
|
|
return "<unknown>";
|
|
|
|
|
}
|
|
|
|
|
#undef CASE
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
#undef MIN
|
|
|
|
|
#define MIN(A, B) (((A) <= (B)) ? (A) : (B))
|
|
|
|
|
|
|
|
|
|
/* target_read_string -- read a null terminated string, up to LEN bytes,
|
|
|
|
|
from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful.
|
|
|
|
|
Set *STRING to a pointer to malloc'd memory containing the data; the caller
|
|
|
|
|
is responsible for freeing it. Return the number of bytes successfully
|
|
|
|
|
read. */
|
|
|
|
|
|
|
|
|
|
int
|
2000-07-30 03:48:28 +02:00
|
|
|
|
target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2013-01-31 17:32:44 +01:00
|
|
|
|
int tlen, offset, i;
|
2005-05-16 Andrew Cagney <cagney@gnu.org>
* target.h (target_read_partial, target_write_partial)
(do_xfer_memory, xfer_memory, target_read, target_write)
(get_target_memory): For buffers, change "void*" to gdb_byte.
(struct target_ops): Ditto for to_xfer_partial and
deprecated_xfer_memory.
* dcache.h (dcache_xfer_memory): Ditto.
* target.c (default_xfer_partial, target_read_partial)
(target_write_partial, target_read, target_write)
(do_xfer_memory, update_current_target, get_target_memory): Update.
(target_read_string): Change buf to a gdb_byte.
* dcache.c (dcache_xfer_memory): Update.
* exec.c (xfer_memory): Make buffer type to gdb_byte.
* mem-break.c (default_memory_insert_breakpoint): Remove cast.
* disasm.c (dis_asm_read_memory): Remove cast, use gdb_byte.
2005-05-16 06:45:43 +02:00
|
|
|
|
gdb_byte buf[4];
|
1999-04-16 03:35:26 +02:00
|
|
|
|
int errcode = 0;
|
|
|
|
|
char *buffer;
|
|
|
|
|
int buffer_allocated;
|
|
|
|
|
char *bufptr;
|
|
|
|
|
unsigned int nbytes_read = 0;
|
|
|
|
|
|
2007-08-09 00:02:43 +02:00
|
|
|
|
gdb_assert (string);
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
/* Small for testing. */
|
|
|
|
|
buffer_allocated = 4;
|
|
|
|
|
buffer = xmalloc (buffer_allocated);
|
|
|
|
|
bufptr = buffer;
|
|
|
|
|
|
|
|
|
|
while (len > 0)
|
|
|
|
|
{
|
|
|
|
|
tlen = MIN (len, 4 - (memaddr & 3));
|
|
|
|
|
offset = memaddr & 3;
|
|
|
|
|
|
2005-05-16 Andrew Cagney <cagney@gnu.org>
* target.h (target_read_partial, target_write_partial)
(do_xfer_memory, xfer_memory, target_read, target_write)
(get_target_memory): For buffers, change "void*" to gdb_byte.
(struct target_ops): Ditto for to_xfer_partial and
deprecated_xfer_memory.
* dcache.h (dcache_xfer_memory): Ditto.
* target.c (default_xfer_partial, target_read_partial)
(target_write_partial, target_read, target_write)
(do_xfer_memory, update_current_target, get_target_memory): Update.
(target_read_string): Change buf to a gdb_byte.
* dcache.c (dcache_xfer_memory): Update.
* exec.c (xfer_memory): Make buffer type to gdb_byte.
* mem-break.c (default_memory_insert_breakpoint): Remove cast.
* disasm.c (dis_asm_read_memory): Remove cast, use gdb_byte.
2005-05-16 06:45:43 +02:00
|
|
|
|
errcode = target_read_memory (memaddr & ~3, buf, sizeof buf);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
if (errcode != 0)
|
|
|
|
|
{
|
|
|
|
|
/* The transfer request might have crossed the boundary to an
|
2011-01-11 22:53:25 +01:00
|
|
|
|
unallocated region of memory. Retry the transfer, requesting
|
1999-04-16 03:35:26 +02:00
|
|
|
|
a single byte. */
|
|
|
|
|
tlen = 1;
|
|
|
|
|
offset = 0;
|
2004-09-30 16:16:20 +02:00
|
|
|
|
errcode = target_read_memory (memaddr, buf, 1);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
if (errcode != 0)
|
|
|
|
|
goto done;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (bufptr - buffer + tlen > buffer_allocated)
|
|
|
|
|
{
|
|
|
|
|
unsigned int bytes;
|
2010-05-17 03:15:20 +02:00
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
bytes = bufptr - buffer;
|
|
|
|
|
buffer_allocated *= 2;
|
|
|
|
|
buffer = xrealloc (buffer, buffer_allocated);
|
|
|
|
|
bufptr = buffer + bytes;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < tlen; i++)
|
|
|
|
|
{
|
|
|
|
|
*bufptr++ = buf[i + offset];
|
|
|
|
|
if (buf[i + offset] == '\000')
|
|
|
|
|
{
|
|
|
|
|
nbytes_read += i + 1;
|
|
|
|
|
goto done;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
memaddr += tlen;
|
|
|
|
|
len -= tlen;
|
|
|
|
|
nbytes_read += tlen;
|
|
|
|
|
}
|
1999-07-07 22:19:36 +02:00
|
|
|
|
done:
|
2007-08-09 00:02:43 +02:00
|
|
|
|
*string = buffer;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
if (errnop != NULL)
|
|
|
|
|
*errnop = errcode;
|
|
|
|
|
return nbytes_read;
|
|
|
|
|
}
|
|
|
|
|
|
2009-06-03 20:50:36 +02:00
|
|
|
|
struct target_section_table *
|
|
|
|
|
target_get_section_table (struct target_ops *target)
|
|
|
|
|
{
|
2013-12-18 22:47:06 +01:00
|
|
|
|
return (*target->to_get_section_table) (target);
|
2009-06-03 20:50:36 +02:00
|
|
|
|
}
|
|
|
|
|
|
2003-10-17 22:17:51 +02:00
|
|
|
|
/* Find a section containing ADDR. */
|
2009-06-03 20:50:36 +02:00
|
|
|
|
|
2009-05-23 01:49:14 +02:00
|
|
|
|
struct target_section *
|
2003-10-17 22:17:51 +02:00
|
|
|
|
target_section_by_addr (struct target_ops *target, CORE_ADDR addr)
|
|
|
|
|
{
|
2009-06-03 20:50:36 +02:00
|
|
|
|
struct target_section_table *table = target_get_section_table (target);
|
2009-05-23 01:49:14 +02:00
|
|
|
|
struct target_section *secp;
|
2009-06-03 20:50:36 +02:00
|
|
|
|
|
|
|
|
|
if (table == NULL)
|
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
|
|
for (secp = table->sections; secp < table->sections_end; secp++)
|
2003-10-17 22:17:51 +02:00
|
|
|
|
{
|
|
|
|
|
if (addr >= secp->addr && addr < secp->endaddr)
|
|
|
|
|
return secp;
|
|
|
|
|
}
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
|
|
|
|
|
Really fail inserting software breakpoints on read-only regions
Currently, with "set breakpoint auto-hw off", we'll still try to
insert a software breakpoint at addresses covered by supposedly
read-only or inacessible regions:
(top-gdb) mem 0x443000 0x450000 ro
(top-gdb) set mem inaccessible-by-default off
(top-gdb) disassemble
Dump of assembler code for function main:
0x0000000000443956 <+34>: movq $0x0,0x10(%rax)
=> 0x000000000044395e <+42>: movq $0x0,0x18(%rax)
0x0000000000443966 <+50>: mov -0x24(%rbp),%eax
0x0000000000443969 <+53>: mov %eax,-0x20(%rbp)
End of assembler dump.
(top-gdb) b *0x0000000000443969
Breakpoint 5 at 0x443969: file ../../src/gdb/gdb.c, line 29.
(top-gdb) c
Continuing.
warning: cannot set software breakpoint at readonly address 0x443969
Breakpoint 5, 0x0000000000443969 in main (argc=1, argv=0x7fffffffd918) at ../../src/gdb/gdb.c:29
29 args.argc = argc;
(top-gdb)
We warn, saying that the insertion can't be done, but then proceed
attempting the insertion anyway, and in case of manually added
regions, the insert actually succeeds.
This is a regression; GDB used to fail inserting the breakpoint. More
below.
I stumbled on this as I wrote a test that manually sets up a read-only
memory region with the "mem" command, in order to test GDB's behavior
with breakpoints set on read-only regions, even when the real memory
the breakpoints are set at isn't really read-only. I wanted that in
order to add a test that exercises software single-stepping through
read-only regions.
Note that the memory regions that target_memory_map returns aren't
like e.g., what would expect to see in /proc/PID/maps on Linux.
Instead, they're the physical memory map from the _debuggers_
perspective. E.g., a read-only region would be real ROM or flash
memory, while a read-only+execute mapping in /proc/PID/maps is still
read-write to the debugger (otherwise the debugger wouldn't be able to
set software breakpoints in the code segment).
If one tries to manually write to memory that falls within a memory
region that is known to be read-only, with e.g., "p foo = 1", then we
hit a check in memory_xfer_partial_1 before the write mananges to make
it to the target side.
But writing a software/memory breakpoint nowadays goes through
target_write_raw_memory, and unlike when writing memory with
TARGET_OBJECT_MEMORY, nothing on the TARGET_OBJECT_RAW_MEMORY path
checks whether we're trying to write to a read-only region.
At the time "breakpoint auto-hw" was added, we didn't have the
TARGET_OBJECT_MEMORY vs TARGET_OBJECT_RAW_MEMORY target object
distinction yet, and the code path in memory_xfer_partial that blocks
writes to read-only memory was hit for memory breakpoints too. With
GDB 6.8 we had:
warning: cannot set software breakpoint at readonly address 0000000000443943
Warning:
Cannot insert breakpoint 1.
Error accessing memory address 0x443943: Input/output error.
So I started out by fixing this by adding the memory region validation
to TARGET_OBJECT_RAW_MEMORY too.
But later, when testing against GDBserver, I realized that that would
only block software/memory breakpoints GDB itself inserts with
gdb/mem-break.c. If a target has a to_insert_breakpoint method, the
insertion request will still pass through to the target. So I ended
up converting the "cannot set breakpoint" warning in breakpoint.c to a
real error return, thus blocking the insertion sooner.
With that, we'll end up no longer needing the TARGET_OBJECT_RAW_MEMORY
changes once software single-step breakpoints are converted to real
breakpoints. We need them today as software single-step breakpoints
bypass insert_bp_location. But, it'll be best to leave that in as
safeguard anyway, for other direct uses of TARGET_OBJECT_RAW_MEMORY.
Tested on x86_64 Fedora 20, native and gdbserver.
gdb/
2014-10-01 Pedro Alves <palves@redhat.com>
* breakpoint.c (insert_bp_location): Error out if inserting a
software breakpoint at a read-only address.
* target.c (memory_xfer_check_region): New function, factored out
from ...
(memory_xfer_partial_1): ... this. Make the 'reg_len' local a
ULONGEST.
(target_xfer_partial) <TARGET_OBJECT_RAW_MEMORY>: Check the access
against the memory region attributes.
gdb/testsuite/
2014-10-01 Pedro Alves <palves@redhat.com>
* gdb.base/breakpoint-in-ro-region.c: New file.
* gdb.base/breakpoint-in-ro-region.exp: New file.
2014-10-02 00:31:55 +02:00
|
|
|
|
|
|
|
|
|
/* Helper for the memory xfer routines. Checks the attributes of the
|
|
|
|
|
memory region of MEMADDR against the read or write being attempted.
|
|
|
|
|
If the access is permitted returns true, otherwise returns false.
|
|
|
|
|
REGION_P is an optional output parameter. If not-NULL, it is
|
|
|
|
|
filled with a pointer to the memory region of MEMADDR. REG_LEN
|
|
|
|
|
returns LEN trimmed to the end of the region. This is how much the
|
|
|
|
|
caller can continue requesting, if the access is permitted. A
|
|
|
|
|
single xfer request must not straddle memory region boundaries. */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
memory_xfer_check_region (gdb_byte *readbuf, const gdb_byte *writebuf,
|
|
|
|
|
ULONGEST memaddr, ULONGEST len, ULONGEST *reg_len,
|
|
|
|
|
struct mem_region **region_p)
|
|
|
|
|
{
|
|
|
|
|
struct mem_region *region;
|
|
|
|
|
|
|
|
|
|
region = lookup_mem_region (memaddr);
|
|
|
|
|
|
|
|
|
|
if (region_p != NULL)
|
|
|
|
|
*region_p = region;
|
|
|
|
|
|
|
|
|
|
switch (region->attrib.mode)
|
|
|
|
|
{
|
|
|
|
|
case MEM_RO:
|
|
|
|
|
if (writebuf != NULL)
|
|
|
|
|
return 0;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case MEM_WO:
|
|
|
|
|
if (readbuf != NULL)
|
|
|
|
|
return 0;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case MEM_FLASH:
|
|
|
|
|
/* We only support writing to flash during "load" for now. */
|
|
|
|
|
if (writebuf != NULL)
|
|
|
|
|
error (_("Writing to flash memory forbidden in this context"));
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case MEM_NONE:
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* region->hi == 0 means there's no upper bound. */
|
|
|
|
|
if (memaddr + len < region->hi || region->hi == 0)
|
|
|
|
|
*reg_len = len;
|
|
|
|
|
else
|
|
|
|
|
*reg_len = region->hi - memaddr;
|
|
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
Delegate to target_ops->beneath for TARGET_OBJECT_RAW_MEMORY
GDB on x86_64-linux is unable to disassemble on core-file target.
$ ./gdb ./testsuite/gdb.base/corefile
(gdb) core-file ./testsuite/gdb.base/corefile.core
(gdb) disassemble main
Dump of assembler code for function main:
0x0000000000400976 <+0>: Cannot access memory at address 0x400976
However, it works if we turn code-cache off.
(gdb) set code-cache off
(gdb) disassemble main,+4
Dump of assembler code from 0x400976 to 0x40097a:
0x0000000000400976 <main+0>: push %rbp
0x0000000000400977 <main+1>: mov %rsp,%rbp
End of assembler dump.
When code-cache is off, GDB will iterate target_ops from top to bottom
and call to_xfer_partial. When current_target is "core", it will call
to_xfer_partial of target "exec", which reads the contents for
disassemble. However, dcache uses TARGET_OBJECT_RAW_MEMORY to read,
but target_xfer_partial doesn't delegate requests to beneath for
TARGET_OBJECT_RAW_MEMORY.
This patch factors out the iteration from top to bottom to a new
function, raw_memory_xfer_partial, and use it for
TARGET_OBJECT_RAW_MEMORY.
Regression tested on x86_64-linux.
gdb:
2013-11-29 Yao Qi <yao@codesourcery.com>
Pedro Alves <palves@redhat.com>
* dcache.c (dcache_read_line): Use current_target.beneath
instead of ¤t_target.
* target.c (memory_xfer_partial_1): Factor code out to ...
(raw_memory_xfer_partial): ... it. New function.
(target_xfer_partial): Call raw_memory_xfer_partial if OBJECT
is TARGET_OBJECT_RAW_MEMORY.
2013-11-27 11:01:05 +01:00
|
|
|
|
/* Read memory from more than one valid target. A core file, for
|
|
|
|
|
instance, could have some of memory but delegate other bits to
|
|
|
|
|
the target below it. So, we must manually try all targets. */
|
|
|
|
|
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
static enum target_xfer_status
|
2013-12-16 07:39:12 +01:00
|
|
|
|
raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf,
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len,
|
|
|
|
|
ULONGEST *xfered_len)
|
Delegate to target_ops->beneath for TARGET_OBJECT_RAW_MEMORY
GDB on x86_64-linux is unable to disassemble on core-file target.
$ ./gdb ./testsuite/gdb.base/corefile
(gdb) core-file ./testsuite/gdb.base/corefile.core
(gdb) disassemble main
Dump of assembler code for function main:
0x0000000000400976 <+0>: Cannot access memory at address 0x400976
However, it works if we turn code-cache off.
(gdb) set code-cache off
(gdb) disassemble main,+4
Dump of assembler code from 0x400976 to 0x40097a:
0x0000000000400976 <main+0>: push %rbp
0x0000000000400977 <main+1>: mov %rsp,%rbp
End of assembler dump.
When code-cache is off, GDB will iterate target_ops from top to bottom
and call to_xfer_partial. When current_target is "core", it will call
to_xfer_partial of target "exec", which reads the contents for
disassemble. However, dcache uses TARGET_OBJECT_RAW_MEMORY to read,
but target_xfer_partial doesn't delegate requests to beneath for
TARGET_OBJECT_RAW_MEMORY.
This patch factors out the iteration from top to bottom to a new
function, raw_memory_xfer_partial, and use it for
TARGET_OBJECT_RAW_MEMORY.
Regression tested on x86_64-linux.
gdb:
2013-11-29 Yao Qi <yao@codesourcery.com>
Pedro Alves <palves@redhat.com>
* dcache.c (dcache_read_line): Use current_target.beneath
instead of ¤t_target.
* target.c (memory_xfer_partial_1): Factor code out to ...
(raw_memory_xfer_partial): ... it. New function.
(target_xfer_partial): Call raw_memory_xfer_partial if OBJECT
is TARGET_OBJECT_RAW_MEMORY.
2013-11-27 11:01:05 +01:00
|
|
|
|
{
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
enum target_xfer_status res;
|
Delegate to target_ops->beneath for TARGET_OBJECT_RAW_MEMORY
GDB on x86_64-linux is unable to disassemble on core-file target.
$ ./gdb ./testsuite/gdb.base/corefile
(gdb) core-file ./testsuite/gdb.base/corefile.core
(gdb) disassemble main
Dump of assembler code for function main:
0x0000000000400976 <+0>: Cannot access memory at address 0x400976
However, it works if we turn code-cache off.
(gdb) set code-cache off
(gdb) disassemble main,+4
Dump of assembler code from 0x400976 to 0x40097a:
0x0000000000400976 <main+0>: push %rbp
0x0000000000400977 <main+1>: mov %rsp,%rbp
End of assembler dump.
When code-cache is off, GDB will iterate target_ops from top to bottom
and call to_xfer_partial. When current_target is "core", it will call
to_xfer_partial of target "exec", which reads the contents for
disassemble. However, dcache uses TARGET_OBJECT_RAW_MEMORY to read,
but target_xfer_partial doesn't delegate requests to beneath for
TARGET_OBJECT_RAW_MEMORY.
This patch factors out the iteration from top to bottom to a new
function, raw_memory_xfer_partial, and use it for
TARGET_OBJECT_RAW_MEMORY.
Regression tested on x86_64-linux.
gdb:
2013-11-29 Yao Qi <yao@codesourcery.com>
Pedro Alves <palves@redhat.com>
* dcache.c (dcache_read_line): Use current_target.beneath
instead of ¤t_target.
* target.c (memory_xfer_partial_1): Factor code out to ...
(raw_memory_xfer_partial): ... it. New function.
(target_xfer_partial): Call raw_memory_xfer_partial if OBJECT
is TARGET_OBJECT_RAW_MEMORY.
2013-11-27 11:01:05 +01:00
|
|
|
|
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL,
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
readbuf, writebuf, memaddr, len,
|
|
|
|
|
xfered_len);
|
|
|
|
|
if (res == TARGET_XFER_OK)
|
Delegate to target_ops->beneath for TARGET_OBJECT_RAW_MEMORY
GDB on x86_64-linux is unable to disassemble on core-file target.
$ ./gdb ./testsuite/gdb.base/corefile
(gdb) core-file ./testsuite/gdb.base/corefile.core
(gdb) disassemble main
Dump of assembler code for function main:
0x0000000000400976 <+0>: Cannot access memory at address 0x400976
However, it works if we turn code-cache off.
(gdb) set code-cache off
(gdb) disassemble main,+4
Dump of assembler code from 0x400976 to 0x40097a:
0x0000000000400976 <main+0>: push %rbp
0x0000000000400977 <main+1>: mov %rsp,%rbp
End of assembler dump.
When code-cache is off, GDB will iterate target_ops from top to bottom
and call to_xfer_partial. When current_target is "core", it will call
to_xfer_partial of target "exec", which reads the contents for
disassemble. However, dcache uses TARGET_OBJECT_RAW_MEMORY to read,
but target_xfer_partial doesn't delegate requests to beneath for
TARGET_OBJECT_RAW_MEMORY.
This patch factors out the iteration from top to bottom to a new
function, raw_memory_xfer_partial, and use it for
TARGET_OBJECT_RAW_MEMORY.
Regression tested on x86_64-linux.
gdb:
2013-11-29 Yao Qi <yao@codesourcery.com>
Pedro Alves <palves@redhat.com>
* dcache.c (dcache_read_line): Use current_target.beneath
instead of ¤t_target.
* target.c (memory_xfer_partial_1): Factor code out to ...
(raw_memory_xfer_partial): ... it. New function.
(target_xfer_partial): Call raw_memory_xfer_partial if OBJECT
is TARGET_OBJECT_RAW_MEMORY.
2013-11-27 11:01:05 +01:00
|
|
|
|
break;
|
|
|
|
|
|
2013-04-24 13:24:11 +02:00
|
|
|
|
/* Stop if the target reports that the memory is not available. */
|
2014-02-23 07:34:29 +01:00
|
|
|
|
if (res == TARGET_XFER_UNAVAILABLE)
|
2013-04-24 13:24:11 +02:00
|
|
|
|
break;
|
|
|
|
|
|
Delegate to target_ops->beneath for TARGET_OBJECT_RAW_MEMORY
GDB on x86_64-linux is unable to disassemble on core-file target.
$ ./gdb ./testsuite/gdb.base/corefile
(gdb) core-file ./testsuite/gdb.base/corefile.core
(gdb) disassemble main
Dump of assembler code for function main:
0x0000000000400976 <+0>: Cannot access memory at address 0x400976
However, it works if we turn code-cache off.
(gdb) set code-cache off
(gdb) disassemble main,+4
Dump of assembler code from 0x400976 to 0x40097a:
0x0000000000400976 <main+0>: push %rbp
0x0000000000400977 <main+1>: mov %rsp,%rbp
End of assembler dump.
When code-cache is off, GDB will iterate target_ops from top to bottom
and call to_xfer_partial. When current_target is "core", it will call
to_xfer_partial of target "exec", which reads the contents for
disassemble. However, dcache uses TARGET_OBJECT_RAW_MEMORY to read,
but target_xfer_partial doesn't delegate requests to beneath for
TARGET_OBJECT_RAW_MEMORY.
This patch factors out the iteration from top to bottom to a new
function, raw_memory_xfer_partial, and use it for
TARGET_OBJECT_RAW_MEMORY.
Regression tested on x86_64-linux.
gdb:
2013-11-29 Yao Qi <yao@codesourcery.com>
Pedro Alves <palves@redhat.com>
* dcache.c (dcache_read_line): Use current_target.beneath
instead of ¤t_target.
* target.c (memory_xfer_partial_1): Factor code out to ...
(raw_memory_xfer_partial): ... it. New function.
(target_xfer_partial): Call raw_memory_xfer_partial if OBJECT
is TARGET_OBJECT_RAW_MEMORY.
2013-11-27 11:01:05 +01:00
|
|
|
|
/* We want to continue past core files to executables, but not
|
|
|
|
|
past a running target's memory. */
|
|
|
|
|
if (ops->to_has_all_memory (ops))
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
ops = ops->beneath;
|
|
|
|
|
}
|
|
|
|
|
while (ops != NULL);
|
|
|
|
|
|
PR gdb/16575: stale breakpoint instructions in the code cache
In non-stop mode, or rather, breakpoints always-inserted mode, the
code cache can easily end up with stale breakpoint instructions:
All it takes is filling a cache line when breakpoints already exist in
that memory region, and then delete the breakpoint.
Vis. (from the new test):
(gdb) set breakpoint always-inserted on
(gdb) b 23
Breakpoint 2 at 0x400540: file ../../../src/gdb/testsuite/gdb.base/breakpoint-shadow.c, line 23.
(gdb) b 24
Breakpoint 3 at 0x400547: file ../../../src/gdb/testsuite/gdb.base/breakpoint-shadow.c, line 24.
disass main
Dump of assembler code for function main:
0x000000000040053c <+0>: push %rbp
0x000000000040053d <+1>: mov %rsp,%rbp
=> 0x0000000000400540 <+4>: movl $0x1,-0x4(%rbp)
0x0000000000400547 <+11>: movl $0x2,-0x4(%rbp)
0x000000000040054e <+18>: mov $0x0,%eax
0x0000000000400553 <+23>: pop %rbp
0x0000000000400554 <+24>: retq
End of assembler dump.
So far so good. Now flush the code cache:
(gdb) set code-cache off
(gdb) set code-cache on
Requesting a disassembly works as expected, breakpoint shadowing is
applied:
(gdb) disass main
Dump of assembler code for function main:
0x000000000040053c <+0>: push %rbp
0x000000000040053d <+1>: mov %rsp,%rbp
=> 0x0000000000400540 <+4>: movl $0x1,-0x4(%rbp)
0x0000000000400547 <+11>: movl $0x2,-0x4(%rbp)
0x000000000040054e <+18>: mov $0x0,%eax
0x0000000000400553 <+23>: pop %rbp
0x0000000000400554 <+24>: retq
End of assembler dump.
However, now delete the breakpoints:
(gdb) delete
Delete all breakpoints? (y or n) y
And disassembly shows the old breakpoint instructions:
(gdb) disass main
Dump of assembler code for function main:
0x000000000040053c <+0>: push %rbp
0x000000000040053d <+1>: mov %rsp,%rbp
=> 0x0000000000400540 <+4>: int3
0x0000000000400541 <+5>: rex.RB cld
0x0000000000400543 <+7>: add %eax,(%rax)
0x0000000000400545 <+9>: add %al,(%rax)
0x0000000000400547 <+11>: int3
0x0000000000400548 <+12>: rex.RB cld
0x000000000040054a <+14>: add (%rax),%al
0x000000000040054c <+16>: add %al,(%rax)
0x000000000040054e <+18>: mov $0x0,%eax
0x0000000000400553 <+23>: pop %rbp
0x0000000000400554 <+24>: retq
End of assembler dump.
Those breakpoint instructions are no longer installed in target memory
they're stale in the code cache. Easily confirmed by just disabling
the code cache:
(gdb) set code-cache off
(gdb) disass main
Dump of assembler code for function main:
0x000000000040053c <+0>: push %rbp
0x000000000040053d <+1>: mov %rsp,%rbp
=> 0x0000000000400540 <+4>: movl $0x1,-0x4(%rbp)
0x0000000000400547 <+11>: movl $0x2,-0x4(%rbp)
0x000000000040054e <+18>: mov $0x0,%eax
0x0000000000400553 <+23>: pop %rbp
0x0000000000400554 <+24>: retq
End of assembler dump.
I stumbled upon this when writing a patch to infrun.c, that made
handle_inferior_event & co fill in the cache before breakpoints were
removed from the target. Recall that wait_for_inferior flushes the
dcache for every event. So in that case, always-inserted mode was not
necessary to trigger this. It's just a convenient way to expose the
issue.
The dcache works at the raw memory level. We need to update it
whenever memory is written, no matter what kind of target memory
object was originally passed down by the caller. The issue is that
the dcache update code isn't reached when a caller explicitly writes
raw memory. Breakpoint insertion/removal is one such case --
mem-break.c uses target_write_read_memory/target_write_raw_memory.
The fix is to move the dcache update code from memory_xfer_partial_1
to raw_memory_xfer_partial so that it's always reachable.
When we do that, we can actually simplify a series of things.
memory_xfer_partial_1 no longer needs to handle writes for any kind of
memory object, and therefore dcache_xfer_memory no longer needs to
handle writes either. So the latter (dcache_xfer_memory) and its
callees can be simplified to only care about reads. While we're
touching dcache_xfer_memory's prototype, might as well rename it to
reflect that fact that it only handles reads, and make it follow the
new target_xfer_status/xfered_len style. This made me notice that
dcache_xfer_memory loses the real error status if a memory read fails:
we could have failed to read due to TARGET_XFER_E_UNAVAILABLE, for
instance, but we always return TARGET_XFER_E_IO, hence the FIXME note.
I felt that fixing that fell out of the scope of this patch.
Currently dcache_xfer_memory handles the case of a write failing. The
whole cache line is invalidated when that happens. However,
dcache_update, the sole mechanism for handling writes that will remain
after the patch, does not presently handle that scenario. That's a
bug. The patch makes it handle that, by passing down the
target_xfer_status status from the caller, so that it can better
decide what to do itself. While I was changing the function's
prototype, I constified the myaddr parameter, getting rid of the need
for the cast as seen in its existing caller.
Tested on x86_64 Fedora 17, native and gdbserver.
gdb/
2014-03-05 Pedro Alves <palves@redhat.com>
PR gdb/16575
* dcache.c (dcache_poke_byte): Constify ptr parameter. Return
void. Update comment.
(dcache_xfer_memory): Delete.
(dcache_read_memory_partial): New, based on the read bits of
dcache_xfer_memory.
(dcache_update): Add status parameter. Use ULONGEST for len, and
adjust. Discard cache lines if the reason for the update was
error.
* dcache.h (dcache_xfer_memory): Delete declaration.
(dcache_read_memory_partial): New declaration.
(dcache_update): Update prototype.
* target.c (raw_memory_xfer_partial): Update the dcache here.
(memory_xfer_partial_1): Don't handle dcache writes here.
gdb/testsuite/
2014-03-05 Pedro Alves <palves@redhat.com>
PR gdb/16575
* gdb.base/breakpoint-shadow.exp (compare_disassembly): New
procedure.
(top level): Adjust to use it. Add tests that exercise breakpoint
interaction with the code-cache.
2014-03-05 15:18:28 +01:00
|
|
|
|
/* The cache works at the raw memory level. Make sure the cache
|
|
|
|
|
gets updated with raw contents no matter what kind of memory
|
|
|
|
|
object was originally being written. Note we do write-through
|
|
|
|
|
first, so that if it fails, we don't write to the cache contents
|
|
|
|
|
that never made it to the target. */
|
|
|
|
|
if (writebuf != NULL
|
|
|
|
|
&& !ptid_equal (inferior_ptid, null_ptid)
|
|
|
|
|
&& target_dcache_init_p ()
|
|
|
|
|
&& (stack_cache_enabled_p () || code_cache_enabled_p ()))
|
|
|
|
|
{
|
|
|
|
|
DCACHE *dcache = target_dcache_get ();
|
|
|
|
|
|
|
|
|
|
/* Note that writing to an area of memory which wasn't present
|
|
|
|
|
in the cache doesn't cause it to be loaded in. */
|
|
|
|
|
dcache_update (dcache, res, memaddr, writebuf, *xfered_len);
|
|
|
|
|
}
|
|
|
|
|
|
Delegate to target_ops->beneath for TARGET_OBJECT_RAW_MEMORY
GDB on x86_64-linux is unable to disassemble on core-file target.
$ ./gdb ./testsuite/gdb.base/corefile
(gdb) core-file ./testsuite/gdb.base/corefile.core
(gdb) disassemble main
Dump of assembler code for function main:
0x0000000000400976 <+0>: Cannot access memory at address 0x400976
However, it works if we turn code-cache off.
(gdb) set code-cache off
(gdb) disassemble main,+4
Dump of assembler code from 0x400976 to 0x40097a:
0x0000000000400976 <main+0>: push %rbp
0x0000000000400977 <main+1>: mov %rsp,%rbp
End of assembler dump.
When code-cache is off, GDB will iterate target_ops from top to bottom
and call to_xfer_partial. When current_target is "core", it will call
to_xfer_partial of target "exec", which reads the contents for
disassemble. However, dcache uses TARGET_OBJECT_RAW_MEMORY to read,
but target_xfer_partial doesn't delegate requests to beneath for
TARGET_OBJECT_RAW_MEMORY.
This patch factors out the iteration from top to bottom to a new
function, raw_memory_xfer_partial, and use it for
TARGET_OBJECT_RAW_MEMORY.
Regression tested on x86_64-linux.
gdb:
2013-11-29 Yao Qi <yao@codesourcery.com>
Pedro Alves <palves@redhat.com>
* dcache.c (dcache_read_line): Use current_target.beneath
instead of ¤t_target.
* target.c (memory_xfer_partial_1): Factor code out to ...
(raw_memory_xfer_partial): ... it. New function.
(target_xfer_partial): Call raw_memory_xfer_partial if OBJECT
is TARGET_OBJECT_RAW_MEMORY.
2013-11-27 11:01:05 +01:00
|
|
|
|
return res;
|
|
|
|
|
}
|
|
|
|
|
|
2009-11-14 00:26:19 +01:00
|
|
|
|
/* Perform a partial memory transfer.
|
|
|
|
|
For docs see target.h, to_xfer_partial. */
|
2006-08-15 20:46:25 +02:00
|
|
|
|
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
static enum target_xfer_status
|
2011-12-06 21:03:14 +01:00
|
|
|
|
memory_xfer_partial_1 (struct target_ops *ops, enum target_object object,
|
2013-12-16 07:39:12 +01:00
|
|
|
|
gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr,
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
ULONGEST len, ULONGEST *xfered_len)
|
2004-09-30 18:18:57 +02:00
|
|
|
|
{
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
enum target_xfer_status res;
|
Really fail inserting software breakpoints on read-only regions
Currently, with "set breakpoint auto-hw off", we'll still try to
insert a software breakpoint at addresses covered by supposedly
read-only or inacessible regions:
(top-gdb) mem 0x443000 0x450000 ro
(top-gdb) set mem inaccessible-by-default off
(top-gdb) disassemble
Dump of assembler code for function main:
0x0000000000443956 <+34>: movq $0x0,0x10(%rax)
=> 0x000000000044395e <+42>: movq $0x0,0x18(%rax)
0x0000000000443966 <+50>: mov -0x24(%rbp),%eax
0x0000000000443969 <+53>: mov %eax,-0x20(%rbp)
End of assembler dump.
(top-gdb) b *0x0000000000443969
Breakpoint 5 at 0x443969: file ../../src/gdb/gdb.c, line 29.
(top-gdb) c
Continuing.
warning: cannot set software breakpoint at readonly address 0x443969
Breakpoint 5, 0x0000000000443969 in main (argc=1, argv=0x7fffffffd918) at ../../src/gdb/gdb.c:29
29 args.argc = argc;
(top-gdb)
We warn, saying that the insertion can't be done, but then proceed
attempting the insertion anyway, and in case of manually added
regions, the insert actually succeeds.
This is a regression; GDB used to fail inserting the breakpoint. More
below.
I stumbled on this as I wrote a test that manually sets up a read-only
memory region with the "mem" command, in order to test GDB's behavior
with breakpoints set on read-only regions, even when the real memory
the breakpoints are set at isn't really read-only. I wanted that in
order to add a test that exercises software single-stepping through
read-only regions.
Note that the memory regions that target_memory_map returns aren't
like e.g., what would expect to see in /proc/PID/maps on Linux.
Instead, they're the physical memory map from the _debuggers_
perspective. E.g., a read-only region would be real ROM or flash
memory, while a read-only+execute mapping in /proc/PID/maps is still
read-write to the debugger (otherwise the debugger wouldn't be able to
set software breakpoints in the code segment).
If one tries to manually write to memory that falls within a memory
region that is known to be read-only, with e.g., "p foo = 1", then we
hit a check in memory_xfer_partial_1 before the write mananges to make
it to the target side.
But writing a software/memory breakpoint nowadays goes through
target_write_raw_memory, and unlike when writing memory with
TARGET_OBJECT_MEMORY, nothing on the TARGET_OBJECT_RAW_MEMORY path
checks whether we're trying to write to a read-only region.
At the time "breakpoint auto-hw" was added, we didn't have the
TARGET_OBJECT_MEMORY vs TARGET_OBJECT_RAW_MEMORY target object
distinction yet, and the code path in memory_xfer_partial that blocks
writes to read-only memory was hit for memory breakpoints too. With
GDB 6.8 we had:
warning: cannot set software breakpoint at readonly address 0000000000443943
Warning:
Cannot insert breakpoint 1.
Error accessing memory address 0x443943: Input/output error.
So I started out by fixing this by adding the memory region validation
to TARGET_OBJECT_RAW_MEMORY too.
But later, when testing against GDBserver, I realized that that would
only block software/memory breakpoints GDB itself inserts with
gdb/mem-break.c. If a target has a to_insert_breakpoint method, the
insertion request will still pass through to the target. So I ended
up converting the "cannot set breakpoint" warning in breakpoint.c to a
real error return, thus blocking the insertion sooner.
With that, we'll end up no longer needing the TARGET_OBJECT_RAW_MEMORY
changes once software single-step breakpoints are converted to real
breakpoints. We need them today as software single-step breakpoints
bypass insert_bp_location. But, it'll be best to leave that in as
safeguard anyway, for other direct uses of TARGET_OBJECT_RAW_MEMORY.
Tested on x86_64 Fedora 20, native and gdbserver.
gdb/
2014-10-01 Pedro Alves <palves@redhat.com>
* breakpoint.c (insert_bp_location): Error out if inserting a
software breakpoint at a read-only address.
* target.c (memory_xfer_check_region): New function, factored out
from ...
(memory_xfer_partial_1): ... this. Make the 'reg_len' local a
ULONGEST.
(target_xfer_partial) <TARGET_OBJECT_RAW_MEMORY>: Check the access
against the memory region attributes.
gdb/testsuite/
2014-10-01 Pedro Alves <palves@redhat.com>
* gdb.base/breakpoint-in-ro-region.c: New file.
* gdb.base/breakpoint-in-ro-region.exp: New file.
2014-10-02 00:31:55 +02:00
|
|
|
|
ULONGEST reg_len;
|
2006-08-15 20:46:25 +02:00
|
|
|
|
struct mem_region *region;
|
2009-08-31 22:18:46 +02:00
|
|
|
|
struct inferior *inf;
|
2006-08-15 20:46:25 +02:00
|
|
|
|
|
2009-06-03 20:50:36 +02:00
|
|
|
|
/* For accesses to unmapped overlay sections, read directly from
|
|
|
|
|
files. Must do this first, as MEMADDR may need adjustment. */
|
|
|
|
|
if (readbuf != NULL && overlay_debugging)
|
|
|
|
|
{
|
|
|
|
|
struct obj_section *section = find_pc_overlay (memaddr);
|
2010-05-17 03:15:20 +02:00
|
|
|
|
|
2009-06-03 20:50:36 +02:00
|
|
|
|
if (pc_in_unmapped_range (memaddr, section))
|
|
|
|
|
{
|
|
|
|
|
struct target_section_table *table
|
|
|
|
|
= target_get_section_table (ops);
|
|
|
|
|
const char *section_name = section->the_bfd_section->name;
|
2010-05-17 03:15:20 +02:00
|
|
|
|
|
2009-06-03 20:50:36 +02:00
|
|
|
|
memaddr = overlay_mapped_address (memaddr, section);
|
|
|
|
|
return section_table_xfer_memory_partial (readbuf, writebuf,
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
memaddr, len, xfered_len,
|
2009-06-03 20:50:36 +02:00
|
|
|
|
table->sections,
|
|
|
|
|
table->sections_end,
|
|
|
|
|
section_name);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Try the executable files, if "trust-readonly-sections" is set. */
|
2006-08-15 20:46:25 +02:00
|
|
|
|
if (readbuf != NULL && trust_readonly)
|
|
|
|
|
{
|
2009-05-23 01:49:14 +02:00
|
|
|
|
struct target_section *secp;
|
2009-06-03 20:50:36 +02:00
|
|
|
|
struct target_section_table *table;
|
2006-08-15 20:46:25 +02:00
|
|
|
|
|
|
|
|
|
secp = target_section_by_addr (ops, memaddr);
|
|
|
|
|
if (secp != NULL
|
2013-07-16 22:41:55 +02:00
|
|
|
|
&& (bfd_get_section_flags (secp->the_bfd_section->owner,
|
|
|
|
|
secp->the_bfd_section)
|
2006-08-15 20:46:25 +02:00
|
|
|
|
& SEC_READONLY))
|
2009-06-03 20:50:36 +02:00
|
|
|
|
{
|
|
|
|
|
table = target_get_section_table (ops);
|
|
|
|
|
return section_table_xfer_memory_partial (readbuf, writebuf,
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
memaddr, len, xfered_len,
|
2009-06-03 20:50:36 +02:00
|
|
|
|
table->sections,
|
|
|
|
|
table->sections_end,
|
|
|
|
|
NULL);
|
|
|
|
|
}
|
2007-07-24 14:49:24 +02:00
|
|
|
|
}
|
|
|
|
|
|
2006-08-15 20:46:25 +02:00
|
|
|
|
/* Try GDB's internal data cache. */
|
|
|
|
|
|
Really fail inserting software breakpoints on read-only regions
Currently, with "set breakpoint auto-hw off", we'll still try to
insert a software breakpoint at addresses covered by supposedly
read-only or inacessible regions:
(top-gdb) mem 0x443000 0x450000 ro
(top-gdb) set mem inaccessible-by-default off
(top-gdb) disassemble
Dump of assembler code for function main:
0x0000000000443956 <+34>: movq $0x0,0x10(%rax)
=> 0x000000000044395e <+42>: movq $0x0,0x18(%rax)
0x0000000000443966 <+50>: mov -0x24(%rbp),%eax
0x0000000000443969 <+53>: mov %eax,-0x20(%rbp)
End of assembler dump.
(top-gdb) b *0x0000000000443969
Breakpoint 5 at 0x443969: file ../../src/gdb/gdb.c, line 29.
(top-gdb) c
Continuing.
warning: cannot set software breakpoint at readonly address 0x443969
Breakpoint 5, 0x0000000000443969 in main (argc=1, argv=0x7fffffffd918) at ../../src/gdb/gdb.c:29
29 args.argc = argc;
(top-gdb)
We warn, saying that the insertion can't be done, but then proceed
attempting the insertion anyway, and in case of manually added
regions, the insert actually succeeds.
This is a regression; GDB used to fail inserting the breakpoint. More
below.
I stumbled on this as I wrote a test that manually sets up a read-only
memory region with the "mem" command, in order to test GDB's behavior
with breakpoints set on read-only regions, even when the real memory
the breakpoints are set at isn't really read-only. I wanted that in
order to add a test that exercises software single-stepping through
read-only regions.
Note that the memory regions that target_memory_map returns aren't
like e.g., what would expect to see in /proc/PID/maps on Linux.
Instead, they're the physical memory map from the _debuggers_
perspective. E.g., a read-only region would be real ROM or flash
memory, while a read-only+execute mapping in /proc/PID/maps is still
read-write to the debugger (otherwise the debugger wouldn't be able to
set software breakpoints in the code segment).
If one tries to manually write to memory that falls within a memory
region that is known to be read-only, with e.g., "p foo = 1", then we
hit a check in memory_xfer_partial_1 before the write mananges to make
it to the target side.
But writing a software/memory breakpoint nowadays goes through
target_write_raw_memory, and unlike when writing memory with
TARGET_OBJECT_MEMORY, nothing on the TARGET_OBJECT_RAW_MEMORY path
checks whether we're trying to write to a read-only region.
At the time "breakpoint auto-hw" was added, we didn't have the
TARGET_OBJECT_MEMORY vs TARGET_OBJECT_RAW_MEMORY target object
distinction yet, and the code path in memory_xfer_partial that blocks
writes to read-only memory was hit for memory breakpoints too. With
GDB 6.8 we had:
warning: cannot set software breakpoint at readonly address 0000000000443943
Warning:
Cannot insert breakpoint 1.
Error accessing memory address 0x443943: Input/output error.
So I started out by fixing this by adding the memory region validation
to TARGET_OBJECT_RAW_MEMORY too.
But later, when testing against GDBserver, I realized that that would
only block software/memory breakpoints GDB itself inserts with
gdb/mem-break.c. If a target has a to_insert_breakpoint method, the
insertion request will still pass through to the target. So I ended
up converting the "cannot set breakpoint" warning in breakpoint.c to a
real error return, thus blocking the insertion sooner.
With that, we'll end up no longer needing the TARGET_OBJECT_RAW_MEMORY
changes once software single-step breakpoints are converted to real
breakpoints. We need them today as software single-step breakpoints
bypass insert_bp_location. But, it'll be best to leave that in as
safeguard anyway, for other direct uses of TARGET_OBJECT_RAW_MEMORY.
Tested on x86_64 Fedora 20, native and gdbserver.
gdb/
2014-10-01 Pedro Alves <palves@redhat.com>
* breakpoint.c (insert_bp_location): Error out if inserting a
software breakpoint at a read-only address.
* target.c (memory_xfer_check_region): New function, factored out
from ...
(memory_xfer_partial_1): ... this. Make the 'reg_len' local a
ULONGEST.
(target_xfer_partial) <TARGET_OBJECT_RAW_MEMORY>: Check the access
against the memory region attributes.
gdb/testsuite/
2014-10-01 Pedro Alves <palves@redhat.com>
* gdb.base/breakpoint-in-ro-region.c: New file.
* gdb.base/breakpoint-in-ro-region.exp: New file.
2014-10-02 00:31:55 +02:00
|
|
|
|
if (!memory_xfer_check_region (readbuf, writebuf, memaddr, len, ®_len,
|
|
|
|
|
®ion))
|
|
|
|
|
return TARGET_XFER_E_IO;
|
2006-08-15 20:46:25 +02:00
|
|
|
|
|
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
Add base multi-executable/process support to GDB.
gdb/
* Makefile.in (SFILES): Add progspace.c.
(COMMON_OBS): Add progspace.o.
* progspace.h: New.
* progspace.c: New.
* breakpoint.h (struct bp_target_info) <placed_address_space>: New
field.
(struct bp_location) <pspace>: New field.
(struct breakpoint) <pspace>: New field.
(bpstat_stop_status, breakpoint_here_p)
(moribund_breakpoint_here_p, breakpoint_inserted_here_p)
(regular_breakpoint_inserted_here_p)
(software_breakpoint_inserted_here_p, breakpoint_thread_match)
(set_default_breakpoint): Adjust prototypes.
(remove_breakpoints_pid, breakpoint_program_space_exit): Declare.
(insert_single_step_breakpoint, deprecated_insert_raw_breakpoint):
Adjust prototypes.
* breakpoint.c (executing_startup): Delete.
(default_breakpoint_sspace): New.
(breakpoint_restore_shadows): Skip if the address space doesn't
match.
(update_watchpoint): Record the frame's program space in the
breakpoint location.
(insert_bp_location): Record the address space in target_info.
Adjust to pass the symbol space to solib_name_from_address.
(breakpoint_program_space_exit): New.
(insert_breakpoint_locations): Switch the symbol space and thread
when inserting breakpoints. Don't insert breakpoints in a vfork
parent waiting for vfork done if we're not attached to the vfork
child.
(remove_breakpoints_pid): New.
(reattach_breakpoints): Switch to a thread of PID. Ignore
breakpoints of other symbol spaces.
(create_internal_breakpoint): Store the symbol space in the sal.
(create_longjmp_master_breakpoint): Iterate over all symbol
spaces.
(update_breakpoints_after_exec): Ignore breakpoints for other
symbol spaces.
(remove_breakpoint): Rename to ...
(remove_breakpoint_1): ... this. Pass the breakpoints symbol
space to solib_name_from_address.
(remove_breakpoint): New.
(mark_breakpoints_out): Ignore breakpoints from other symbol
spaces.
(breakpoint_init_inferior): Ditto.
(breakpoint_here_p): Add an address space argument and adjust to
use breakpoint_address_match.
(moribund_breakpoint_here_p): Ditto.
(regular_breakpoint_inserted_here_p): Ditto.
(breakpoint_inserted_here_p): Ditto.
(software_breakpoint_inserted_here_p): Ditto.
(breakpoint_thread_match): Ditto.
(bpstat_check_location): Ditto.
(bpstat_stop_status): Ditto.
(print_breakpoint_location): If there's a location to print,
switch the current symbol space.
(print_one_breakpoint_location): Add `allflag' argument.
(print_one_breakpoint): Ditto. Adjust.
(do_captured_breakpoint_query): Adjust.
(breakpoint_1): Adjust.
(breakpoint_has_pc): Also match the symbol space.
(describe_other_breakpoints): Add a symbol space argument and
adjust.
(set_default_breakpoint): Add a symbol space argument. Set
default_breakpoint_sspace.
(breakpoint_address_match): New.
(check_duplicates_for): Add an address space argument, and adjust.
(set_raw_breakpoint): Record the symbol space in the location and
in the breakpoint.
(set_longjmp_breakpoint): Skip longjmp master breakpoints from
other symbol spaces.
(remove_thread_event_breakpoints, remove_solib_event_breakpoints)
(disable_breakpoints_in_shlibs): Skip breakpoints from other
symbol spaces.
(disable_breakpoints_in_unloaded_shlib): Match symbol spaces.
(create_catchpoint): Set the symbol space in the sal.
(disable_breakpoints_before_startup): Skip breakpoints from other
symbol spaces. Set executing_startup in the current symbol space.
(enable_breakpoints_after_startup): Clear executing_startup in the
current symbol space. Skip breakpoints from other symbol spaces.
(clone_momentary_breakpoint): Also copy the symbol space.
(add_location_to_breakpoint): Set the location's symbol space.
(bp_loc_is_permanent): Switch thread and symbol space.
(create_breakpoint): Adjust.
(expand_line_sal_maybe): Expand comment to mention symbol spaces.
Switch thread and symbol space when reading memory.
(parse_breakpoint_sals): Set the symbol space in the sal.
(break_command_really): Ditto.
(skip_prologue_sal): Switch and space.
(resolve_sal_pc): Ditto.
(watch_command_1): Record the symbol space in the sal.
(create_ada_exception_breakpoint): Adjust.
(clear_command): Adjust. Match symbol spaces.
(update_global_location_list): Use breakpoint_address_match.
(breakpoint_re_set_one): Switch thread and space.
(breakpoint_re_set): Save symbol space.
(breakpoint_re_set_thread): Also reset the symbol space.
(deprecated_insert_raw_breakpoint): Add an address space argument.
Adjust.
(insert_single_step_breakpoint): Ditto.
(single_step_breakpoint_inserted_here_p): Ditto.
(clear_syscall_counts): New.
(_initialize_breakpoint): Install it as inferior_exit observer.
* exec.h: Include "progspace.h".
(exec_bfd, exec_bfd_mtime): New defines.
(exec_close): Declare.
* exec.c: Include "gdbthread.h" and "progspace.h".
(exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete.
(using_exec_ops): New.
(exec_close_1): Rename to exec_close, and make public.
(exec_close): Rename to exec_close_1, and adjust all callers. Add
description. Remove target sections and close executables from
all program spaces.
(exec_file_attach): Add comment.
(add_target_sections): Check on `using_exec_ops' to check if the
target should be pushed.
(remove_target_sections): Only unpush the target if there are no
more target sections in any symbol space.
* gdbcore.h: Include "exec.h".
(exec_bfd, exec_bfd_mtime): Remove declarations.
* frame.h (get_frame_program_space, get_frame_address_space)
(frame_unwind_program_space): Declare.
* frame.c (struct frame_info) <pspace, aspace>: New fields.
(create_sentinel_frame): Add program space argument. Set the
pspace and aspace fields of the frame object.
(get_current_frame, create_new_frame): Adjust.
(get_frame_program_space): New.
(frame_unwind_program_space): New.
(get_frame_address_space): New.
* stack.c (print_frame_info): Adjust.
(print_frame): Use the frame's program space.
* gdbthread.h (any_live_thread_of_process): Declare.
* thread.c (any_live_thread_of_process): New.
(switch_to_thread): Switch the program space as well.
(restore_selected_frame): Don't warn if trying to restore frame
level 0.
* inferior.h: Include "progspace.h".
(detach_fork): Declare.
(struct inferior) <removable, aspace, pspace>
<vfork_parent, vfork_child, pending_detach>
<waiting_for_vfork_done>: New fields.
<terminal_info>: Remove field.
<data, num_data>: New fields.
(register_inferior_data, register_inferior_data_with_cleanup)
(clear_inferior_data, set_inferior_data, inferior_data): Declare.
(exit_inferior, exit_inferior_silent, exit_inferior_num_silent)
(inferior_appeared): Declare.
(find_inferior_pid): Typo.
(find_inferior_id, find_inferior_for_program_space): Declare.
(set_current_inferior, save_current_inferior, prune_inferiors)
(number_of_inferiors): Declare.
(inferior_list): Declare.
* inferior.c: Include "gdbcore.h" and "symfile.h".
(inferior_list): Make public.
(delete_inferior_1): Always delete thread silently.
(find_inferior_id): Make public.
(current_inferior_): New.
(current_inferior): Use it.
(set_current_inferior): New.
(restore_inferior): New.
(save_current_inferior): New.
(free_inferior): Free the per-inferior data.
(add_inferior_silent): Allocate per-inferior data.
Call inferior_appeared.
(delete_threads_of_inferior): New.
(delete_inferior_1): Adjust interface to take an inferior pointer.
(delete_inferior): Adjust.
(delete_inferior_silent): Adjust.
(exit_inferior_1): New.
(exit_inferior): New.
(exit_inferior_silent): New.
(exit_inferior_num_silent): New.
(detach_inferior): Adjust.
(inferior_appeared): New.
(discard_all_inferiors): Adjust.
(find_inferior_id): Make public. Assert pid is not zero.
(find_inferior_for_program_space): New.
(have_inferiors): Check if we have any inferior with pid not zero.
(have_live_inferiors): Go over all pushed targets looking for
process_stratum.
(prune_inferiors): New.
(number_of_inferiors): New.
(print_inferior): Add executable column. Print vfork parent/child
relationships.
(inferior_command): Adjust to cope with not running inferiors.
(remove_inferior_command): New.
(add_inferior_command): New.
(clone_inferior_command): New.
(struct inferior_data): New.
(struct inferior_data_registration): New.
(struct inferior_data_registry): New.
(inferior_data_registry): New.
(register_inferior_data_with_cleanup): New.
(register_inferior_data): New.
(inferior_alloc_data): New.
(inferior_free_data): New.
(clear_inferior_data): New.
(set_inferior_data): New.
(inferior_data): New.
(initialize_inferiors): New.
(_initialize_inferiors): Register "add-inferior",
"remove-inferior" and "clone-inferior" commands.
* objfiles.h: Include "progspace.h".
(struct objfile) <pspace>: New field.
(symfile_objfile, object_files): Don't declare.
(ALL_PSPACE_OBJFILES): New.
(ALL_PSPACE_OBJFILES_SAFE): New.
(ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust.
(ALL_PSPACE_SYMTABS): New.
(ALL_PRIMARY_SYMTABS): Adjust.
(ALL_PSPACE_PRIMARY_SYMTABS): New.
(ALL_PSYMTABS): Adjust.
(ALL_PSPACE_PSYMTABS): New.
* objfiles.c (object_files, symfile_objfile): Delete.
(struct objfile_sspace_info): New.
(objfiles_pspace_data): New.
(objfiles_pspace_data_cleanup): New.
(get_objfile_pspace_data): New.
(objfiles_changed_p): Delete.
(allocate_objfile): Set the objfile's program space. Adjust to
reference objfiles_changed_p in pspace data.
(free_objfile): Adjust to reference objfiles_changed_p in pspace
data.
(objfile_relocate): Ditto.
(update_section_map): Add pspace argument. Adjust to iterate over
objfiles in the passed in pspace.
(find_pc_section): Delete sections and num_sections statics.
Adjust to refer to program space's objfiles_changed_p. Adjust to
refer to sections and num_sections store in the objfile's pspace
data.
(objfiles_changed): Adjust to reference objfiles_changed_p in
pspace data.
(_initialize_objfiles): New.
* linespec.c (decode_all_digits, decode_dollar): Set the sal's
program space.
* source.c (current_source_pspace): New.
(get_current_source_symtab_and_line): Set the sal's program space.
(set_current_source_symtab_and_line): Set current_source_pspace.
(select_source_symtab): Ditto. Use ALL_OBJFILES.
(forget_cached_source_info): Iterate over all program spaces.
* symfile.c (clear_symtab_users): Adjust.
* symmisc.c (print_symbol_bcache_statistics): Iterate over all
program spaces.
(print_objfile_statistics): Ditto.
(maintenance_print_msymbols): Ditto.
(maintenance_print_objfiles): Ditto.
(maintenance_info_symtabs): Ditto.
(maintenance_info_psymtabs): Ditto.
* symtab.h (SYMTAB_PSPACE): New.
(struct symtab_and_line) <pspace>: New field.
* symtab.c (init_sal): Clear the sal's program space.
(find_pc_sect_symtab): Set the sal's program space. Switch thread
and space.
(append_expanded_sal): Add program space argument. Iterate over
all program spaces.
(expand_line_sal): Iterate over all program spaces. Switch
program space.
* target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New.
(struct target_ops) <to_thread_address_space>: New field.
(target_thread_address_space): Define.
* target.c (target_detach): Only remove breakpoints from the
inferior we're detaching.
(target_thread_address_space): New.
* defs.h (initialize_progspace): Declare.
* top.c (gdb_init): Call it.
* solist.h (struct so_list) <sspace>: New field.
* solib.h (struct program_space): Forward declare.
(solib_name_from_address): Adjust prototype.
* solib.c (so_list_head): Replace with a macro referencing the
program space.
(update_solib_list): Set the so's program space.
(solib_name_from_address): Add a program space argument and adjust.
* solib-svr4.c (struct svr4_info) <pid>: Delete field.
<interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low>
<interp_plt_sect_high>: New fields.
(svr4_info_p, svr4_info): Delete.
(solib_svr4_sspace_data): New.
(get_svr4_info): Rewrite.
(svr4_sspace_data_cleanup): New.
(open_symbol_file_object): Adjust.
(svr4_default_sos): Adjust.
(svr4_fetch_objfile_link_map): Adjust.
(interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low)
(interp_plt_sect_high): Delete.
(svr4_in_dynsym_resolve_code): Adjust.
(enable_break): Adjust.
(svr4_clear_solib): Revert bit that removed the svr4_info here,
and reinstate clearing debug_base, debug_loader_offset_p,
debug_loader_offset and debug_loader_name.
(_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't
install an inferior_exit observer anymore.
* printcmd.c (struct display) <pspace>: New field.
(display_command): Set the display's sspace.
(do_one_display): Match the display's sspace.
(display_uses_solib_p): Ditto.
* linux-fork.c (detach_fork): Moved to infrun.c.
(_initialize_linux_fork): Moved "detach-on-fork" command to
infrun.c.
* infrun.c (detach_fork): Moved from linux-fork.c.
(proceed_after_vfork_done): New.
(handle_vfork_child_exec_or_exit): New.
(follow_exec_mode_replace, follow_exec_mode_keep)
(follow_exec_mode_names, follow_exec_mode_string)
(show_follow_exec_mode_string): New.
(follow_exec): New. Reinstate the mark_breakpoints_out call.
Remove shared libraries before attaching new executable. If user
wants to keep the inferior, keep it.
(displaced_step_fixup): Adjust to pass an address space to the
breakpoints module.
(resume): Ditto.
(clear_proceed_status): In all-stop mode, always clear the proceed
status of all threads.
(prepare_to_proceed): Adjust to pass an address space to the
breakpoints module.
(proceed): Ditto.
(adjust_pc_after_break): Ditto.
(handle_inferior_event): When handling a process exit, switch the
program space to the inferior's that had exited. Call
handle_vfork_child_exec_or_exit. Adjust to pass an address space
to the breakpoints module. In non-stop mode, when following a
fork and detach-fork is off, also resume the other branch. Handle
TARGET_WAITKIND_VFORK_DONE. Set the program space in sals.
(normal_stop): Prune inferiors.
(_initialize_infrun): Install the new "follow-exec-mode" command.
"detach-on-fork" moved here.
* regcache.h (get_regcache_aspace): Declare.
* regcache.c (struct regcache) <aspace>: New field.
(regcache_xmalloc): Clear the aspace.
(get_regcache_aspace): New.
(regcache_cpy): Copy the aspace field.
(regcache_cpy_no_passthrough): Ditto.
(get_thread_regcache): Fetch the thread's address space from the
target, and store it in the regcache.
* infcall.c (call_function_by_hand): Set the sal's pspace.
* arch-utils.c (default_has_shared_address_space): New.
* arch-utils.h (default_has_shared_address_space): Declare.
* gdbarch.sh (has_shared_address_space): New.
* gdbarch.h, gdbarch.c: Regenerate.
* linux-tdep.c: Include auxv.h, target.h, elf/common.h.
(linux_has_shared_address_space): New.
(_initialize_linux_tdep): Declare.
* arm-tdep.c (arm_software_single_step): Pass the frame's address
space to insert_single_step_breakpoint.
* arm-linux-tdep.c (arm_linux_software_single_step): Pass the
frame's pspace to breakpoint functions.
* cris-tdep.c (crisv32_single_step_through_delay): Ditto.
(cris_software_single_step): Ditto.
* mips-tdep.c (deal_with_atomic_sequence): Add frame argument.
Pass the frame's pspace to breakpoint functions.
(mips_software_single_step): Adjust.
(mips_single_step_through_delay): Adjust.
* rs6000-aix-tdep.c (rs6000_software_single_step): Adjust.
* rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust.
* solib-irix.c (enable_break): Adjust to pass the current frame's
address space to breakpoint functions.
* sparc-tdep.c (sparc_software_single_step): Ditto.
* spu-tdep.c (spu_software_single_step): Ditto.
* alpha-tdep.c (alpha_software_single_step): Ditto.
* record.c (record_wait): Adjust to pass an address space to the
breakpoints module.
* fork-child.c (fork_inferior): Set the new inferior's program and
address spaces.
* inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program
and address spaces.
(inf_ptrace_attach): Set the inferior's program and address spaces.
* linux-nat.c: Include "solib.h".
(linux_child_follow_fork): Manage parent and child's program and
address spaces. Clone the parent's program space if necessary.
Don't wait for the vfork to be done here. Refuse to resume if
following the vfork parent while leaving the child stopped.
(resume_callback): Don't resume a vfork parent.
(linux_nat_resume): Also check for pending events in the
lp->waitstatus field.
(linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE
events to the core.
(stop_wait_callback): Don't wait for SIGSTOP on vfork parents.
(cancel_breakpoint): Adjust.
* linux-thread-db.c (thread_db_wait): Don't remove thread event
breakpoints here.
(thread_db_mourn_inferior): Don't mark breakpoints out here.
Remove thread event breakpoints after mourning.
* corelow.c: Include progspace.h.
(core_open): Set the inferior's program and address spaces.
* remote.c (remote_add_inferior): Set the new inferior's program
and address spaces.
(remote_start_remote): Update address spaces.
(extended_remote_create_inferior_1): Don't init the thread list if
we already debugging other inferiors.
* darwin-nat.c (darwin_attach): Set the new inferior's program and
address spaces.
* gnu-nat.c (gnu_attach): Ditto.
* go32-nat.c (go32_create_inferior): Ditto.
* inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto.
* monitor.c (monitor_open): Ditto.
* nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto.
* procfs.c (do_attach): Ditto.
* windows-nat.c (do_initial_windows_stuff): Ditto.
* inflow.c (inferior_process_group)
(terminal_init_inferior_with_pgrp, terminal_inferior,
(terminal_ours_1, inflow_inferior_exit, copy_terminal_info)
(child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust
to use per-inferior data instead of inferior->terminal_info.
(inflow_inferior_data): New.
(inflow_new_inferior): Delete.
(inflow_inferior_data_cleanup): New.
(get_inflow_inferior_data): New.
* mi/mi-interp.c (mi_new_inferior): Rename to...
(mi_inferior_appeared): ... this.
(mi_interpreter_init): Adjust.
* tui/tui-disasm.c: Include "progspace.h".
(tui_set_disassem_content): Pass an address space to
breakpoint_here_p.
* NEWS: Mention multi-program debugging support. Mention new
commands "add-inferior", "clone-inferior", "remove-inferior",
"maint info program-spaces", and new option "set
follow-exec-mode".
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/doc/
* observer.texi (new_inferior): Rename to...
(inferior_appeared): ... this.
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/testsuite/
* gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork".
* gdb.base/foll-exec.exp: Adjust to expect a process id before
"Executing new program".
* gdb.base/foll-fork.exp: Adjust to spell out "follow-fork".
* gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being
left listed after having been killed.
* gdb.base/attach.exp: Adjust to spell out "symbol-file".
* gdb.base/maint.exp: Adjust test.
* Makefile.in (ALL_SUBDIRS): Add gdb.multi.
* gdb.multi/Makefile.in: New.
* gdb.multi/base.exp: New.
* gdb.multi/goodbye.c: New.
* gdb.multi/hangout.c: New.
* gdb.multi/hello.c: New.
* gdb.multi/bkpt-multi-exec.c: New.
* gdb.multi/bkpt-multi-exec.exp: New.
* gdb.multi/crashme.c: New.
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/doc/
* gdb.texinfo (Inferiors): Rename node to ...
(Inferiors and Programs): ... this. Mention running multiple
programs in the same debug session.
<info inferiors>: Mention the new 'Executable' column if "info
inferiors". Update examples. Document the "add-inferior",
"clone-inferior", "remove-inferior" and "maint info
program-spaces" commands.
(Process): Rename node to...
(Forks): ... this. Document "set|show follow-exec-mode".
2009-10-19 11:51:43 +02:00
|
|
|
|
if (!ptid_equal (inferior_ptid, null_ptid))
|
2014-12-15 18:00:55 +01:00
|
|
|
|
inf = find_inferior_ptid (inferior_ptid);
|
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
Add base multi-executable/process support to GDB.
gdb/
* Makefile.in (SFILES): Add progspace.c.
(COMMON_OBS): Add progspace.o.
* progspace.h: New.
* progspace.c: New.
* breakpoint.h (struct bp_target_info) <placed_address_space>: New
field.
(struct bp_location) <pspace>: New field.
(struct breakpoint) <pspace>: New field.
(bpstat_stop_status, breakpoint_here_p)
(moribund_breakpoint_here_p, breakpoint_inserted_here_p)
(regular_breakpoint_inserted_here_p)
(software_breakpoint_inserted_here_p, breakpoint_thread_match)
(set_default_breakpoint): Adjust prototypes.
(remove_breakpoints_pid, breakpoint_program_space_exit): Declare.
(insert_single_step_breakpoint, deprecated_insert_raw_breakpoint):
Adjust prototypes.
* breakpoint.c (executing_startup): Delete.
(default_breakpoint_sspace): New.
(breakpoint_restore_shadows): Skip if the address space doesn't
match.
(update_watchpoint): Record the frame's program space in the
breakpoint location.
(insert_bp_location): Record the address space in target_info.
Adjust to pass the symbol space to solib_name_from_address.
(breakpoint_program_space_exit): New.
(insert_breakpoint_locations): Switch the symbol space and thread
when inserting breakpoints. Don't insert breakpoints in a vfork
parent waiting for vfork done if we're not attached to the vfork
child.
(remove_breakpoints_pid): New.
(reattach_breakpoints): Switch to a thread of PID. Ignore
breakpoints of other symbol spaces.
(create_internal_breakpoint): Store the symbol space in the sal.
(create_longjmp_master_breakpoint): Iterate over all symbol
spaces.
(update_breakpoints_after_exec): Ignore breakpoints for other
symbol spaces.
(remove_breakpoint): Rename to ...
(remove_breakpoint_1): ... this. Pass the breakpoints symbol
space to solib_name_from_address.
(remove_breakpoint): New.
(mark_breakpoints_out): Ignore breakpoints from other symbol
spaces.
(breakpoint_init_inferior): Ditto.
(breakpoint_here_p): Add an address space argument and adjust to
use breakpoint_address_match.
(moribund_breakpoint_here_p): Ditto.
(regular_breakpoint_inserted_here_p): Ditto.
(breakpoint_inserted_here_p): Ditto.
(software_breakpoint_inserted_here_p): Ditto.
(breakpoint_thread_match): Ditto.
(bpstat_check_location): Ditto.
(bpstat_stop_status): Ditto.
(print_breakpoint_location): If there's a location to print,
switch the current symbol space.
(print_one_breakpoint_location): Add `allflag' argument.
(print_one_breakpoint): Ditto. Adjust.
(do_captured_breakpoint_query): Adjust.
(breakpoint_1): Adjust.
(breakpoint_has_pc): Also match the symbol space.
(describe_other_breakpoints): Add a symbol space argument and
adjust.
(set_default_breakpoint): Add a symbol space argument. Set
default_breakpoint_sspace.
(breakpoint_address_match): New.
(check_duplicates_for): Add an address space argument, and adjust.
(set_raw_breakpoint): Record the symbol space in the location and
in the breakpoint.
(set_longjmp_breakpoint): Skip longjmp master breakpoints from
other symbol spaces.
(remove_thread_event_breakpoints, remove_solib_event_breakpoints)
(disable_breakpoints_in_shlibs): Skip breakpoints from other
symbol spaces.
(disable_breakpoints_in_unloaded_shlib): Match symbol spaces.
(create_catchpoint): Set the symbol space in the sal.
(disable_breakpoints_before_startup): Skip breakpoints from other
symbol spaces. Set executing_startup in the current symbol space.
(enable_breakpoints_after_startup): Clear executing_startup in the
current symbol space. Skip breakpoints from other symbol spaces.
(clone_momentary_breakpoint): Also copy the symbol space.
(add_location_to_breakpoint): Set the location's symbol space.
(bp_loc_is_permanent): Switch thread and symbol space.
(create_breakpoint): Adjust.
(expand_line_sal_maybe): Expand comment to mention symbol spaces.
Switch thread and symbol space when reading memory.
(parse_breakpoint_sals): Set the symbol space in the sal.
(break_command_really): Ditto.
(skip_prologue_sal): Switch and space.
(resolve_sal_pc): Ditto.
(watch_command_1): Record the symbol space in the sal.
(create_ada_exception_breakpoint): Adjust.
(clear_command): Adjust. Match symbol spaces.
(update_global_location_list): Use breakpoint_address_match.
(breakpoint_re_set_one): Switch thread and space.
(breakpoint_re_set): Save symbol space.
(breakpoint_re_set_thread): Also reset the symbol space.
(deprecated_insert_raw_breakpoint): Add an address space argument.
Adjust.
(insert_single_step_breakpoint): Ditto.
(single_step_breakpoint_inserted_here_p): Ditto.
(clear_syscall_counts): New.
(_initialize_breakpoint): Install it as inferior_exit observer.
* exec.h: Include "progspace.h".
(exec_bfd, exec_bfd_mtime): New defines.
(exec_close): Declare.
* exec.c: Include "gdbthread.h" and "progspace.h".
(exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete.
(using_exec_ops): New.
(exec_close_1): Rename to exec_close, and make public.
(exec_close): Rename to exec_close_1, and adjust all callers. Add
description. Remove target sections and close executables from
all program spaces.
(exec_file_attach): Add comment.
(add_target_sections): Check on `using_exec_ops' to check if the
target should be pushed.
(remove_target_sections): Only unpush the target if there are no
more target sections in any symbol space.
* gdbcore.h: Include "exec.h".
(exec_bfd, exec_bfd_mtime): Remove declarations.
* frame.h (get_frame_program_space, get_frame_address_space)
(frame_unwind_program_space): Declare.
* frame.c (struct frame_info) <pspace, aspace>: New fields.
(create_sentinel_frame): Add program space argument. Set the
pspace and aspace fields of the frame object.
(get_current_frame, create_new_frame): Adjust.
(get_frame_program_space): New.
(frame_unwind_program_space): New.
(get_frame_address_space): New.
* stack.c (print_frame_info): Adjust.
(print_frame): Use the frame's program space.
* gdbthread.h (any_live_thread_of_process): Declare.
* thread.c (any_live_thread_of_process): New.
(switch_to_thread): Switch the program space as well.
(restore_selected_frame): Don't warn if trying to restore frame
level 0.
* inferior.h: Include "progspace.h".
(detach_fork): Declare.
(struct inferior) <removable, aspace, pspace>
<vfork_parent, vfork_child, pending_detach>
<waiting_for_vfork_done>: New fields.
<terminal_info>: Remove field.
<data, num_data>: New fields.
(register_inferior_data, register_inferior_data_with_cleanup)
(clear_inferior_data, set_inferior_data, inferior_data): Declare.
(exit_inferior, exit_inferior_silent, exit_inferior_num_silent)
(inferior_appeared): Declare.
(find_inferior_pid): Typo.
(find_inferior_id, find_inferior_for_program_space): Declare.
(set_current_inferior, save_current_inferior, prune_inferiors)
(number_of_inferiors): Declare.
(inferior_list): Declare.
* inferior.c: Include "gdbcore.h" and "symfile.h".
(inferior_list): Make public.
(delete_inferior_1): Always delete thread silently.
(find_inferior_id): Make public.
(current_inferior_): New.
(current_inferior): Use it.
(set_current_inferior): New.
(restore_inferior): New.
(save_current_inferior): New.
(free_inferior): Free the per-inferior data.
(add_inferior_silent): Allocate per-inferior data.
Call inferior_appeared.
(delete_threads_of_inferior): New.
(delete_inferior_1): Adjust interface to take an inferior pointer.
(delete_inferior): Adjust.
(delete_inferior_silent): Adjust.
(exit_inferior_1): New.
(exit_inferior): New.
(exit_inferior_silent): New.
(exit_inferior_num_silent): New.
(detach_inferior): Adjust.
(inferior_appeared): New.
(discard_all_inferiors): Adjust.
(find_inferior_id): Make public. Assert pid is not zero.
(find_inferior_for_program_space): New.
(have_inferiors): Check if we have any inferior with pid not zero.
(have_live_inferiors): Go over all pushed targets looking for
process_stratum.
(prune_inferiors): New.
(number_of_inferiors): New.
(print_inferior): Add executable column. Print vfork parent/child
relationships.
(inferior_command): Adjust to cope with not running inferiors.
(remove_inferior_command): New.
(add_inferior_command): New.
(clone_inferior_command): New.
(struct inferior_data): New.
(struct inferior_data_registration): New.
(struct inferior_data_registry): New.
(inferior_data_registry): New.
(register_inferior_data_with_cleanup): New.
(register_inferior_data): New.
(inferior_alloc_data): New.
(inferior_free_data): New.
(clear_inferior_data): New.
(set_inferior_data): New.
(inferior_data): New.
(initialize_inferiors): New.
(_initialize_inferiors): Register "add-inferior",
"remove-inferior" and "clone-inferior" commands.
* objfiles.h: Include "progspace.h".
(struct objfile) <pspace>: New field.
(symfile_objfile, object_files): Don't declare.
(ALL_PSPACE_OBJFILES): New.
(ALL_PSPACE_OBJFILES_SAFE): New.
(ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust.
(ALL_PSPACE_SYMTABS): New.
(ALL_PRIMARY_SYMTABS): Adjust.
(ALL_PSPACE_PRIMARY_SYMTABS): New.
(ALL_PSYMTABS): Adjust.
(ALL_PSPACE_PSYMTABS): New.
* objfiles.c (object_files, symfile_objfile): Delete.
(struct objfile_sspace_info): New.
(objfiles_pspace_data): New.
(objfiles_pspace_data_cleanup): New.
(get_objfile_pspace_data): New.
(objfiles_changed_p): Delete.
(allocate_objfile): Set the objfile's program space. Adjust to
reference objfiles_changed_p in pspace data.
(free_objfile): Adjust to reference objfiles_changed_p in pspace
data.
(objfile_relocate): Ditto.
(update_section_map): Add pspace argument. Adjust to iterate over
objfiles in the passed in pspace.
(find_pc_section): Delete sections and num_sections statics.
Adjust to refer to program space's objfiles_changed_p. Adjust to
refer to sections and num_sections store in the objfile's pspace
data.
(objfiles_changed): Adjust to reference objfiles_changed_p in
pspace data.
(_initialize_objfiles): New.
* linespec.c (decode_all_digits, decode_dollar): Set the sal's
program space.
* source.c (current_source_pspace): New.
(get_current_source_symtab_and_line): Set the sal's program space.
(set_current_source_symtab_and_line): Set current_source_pspace.
(select_source_symtab): Ditto. Use ALL_OBJFILES.
(forget_cached_source_info): Iterate over all program spaces.
* symfile.c (clear_symtab_users): Adjust.
* symmisc.c (print_symbol_bcache_statistics): Iterate over all
program spaces.
(print_objfile_statistics): Ditto.
(maintenance_print_msymbols): Ditto.
(maintenance_print_objfiles): Ditto.
(maintenance_info_symtabs): Ditto.
(maintenance_info_psymtabs): Ditto.
* symtab.h (SYMTAB_PSPACE): New.
(struct symtab_and_line) <pspace>: New field.
* symtab.c (init_sal): Clear the sal's program space.
(find_pc_sect_symtab): Set the sal's program space. Switch thread
and space.
(append_expanded_sal): Add program space argument. Iterate over
all program spaces.
(expand_line_sal): Iterate over all program spaces. Switch
program space.
* target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New.
(struct target_ops) <to_thread_address_space>: New field.
(target_thread_address_space): Define.
* target.c (target_detach): Only remove breakpoints from the
inferior we're detaching.
(target_thread_address_space): New.
* defs.h (initialize_progspace): Declare.
* top.c (gdb_init): Call it.
* solist.h (struct so_list) <sspace>: New field.
* solib.h (struct program_space): Forward declare.
(solib_name_from_address): Adjust prototype.
* solib.c (so_list_head): Replace with a macro referencing the
program space.
(update_solib_list): Set the so's program space.
(solib_name_from_address): Add a program space argument and adjust.
* solib-svr4.c (struct svr4_info) <pid>: Delete field.
<interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low>
<interp_plt_sect_high>: New fields.
(svr4_info_p, svr4_info): Delete.
(solib_svr4_sspace_data): New.
(get_svr4_info): Rewrite.
(svr4_sspace_data_cleanup): New.
(open_symbol_file_object): Adjust.
(svr4_default_sos): Adjust.
(svr4_fetch_objfile_link_map): Adjust.
(interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low)
(interp_plt_sect_high): Delete.
(svr4_in_dynsym_resolve_code): Adjust.
(enable_break): Adjust.
(svr4_clear_solib): Revert bit that removed the svr4_info here,
and reinstate clearing debug_base, debug_loader_offset_p,
debug_loader_offset and debug_loader_name.
(_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't
install an inferior_exit observer anymore.
* printcmd.c (struct display) <pspace>: New field.
(display_command): Set the display's sspace.
(do_one_display): Match the display's sspace.
(display_uses_solib_p): Ditto.
* linux-fork.c (detach_fork): Moved to infrun.c.
(_initialize_linux_fork): Moved "detach-on-fork" command to
infrun.c.
* infrun.c (detach_fork): Moved from linux-fork.c.
(proceed_after_vfork_done): New.
(handle_vfork_child_exec_or_exit): New.
(follow_exec_mode_replace, follow_exec_mode_keep)
(follow_exec_mode_names, follow_exec_mode_string)
(show_follow_exec_mode_string): New.
(follow_exec): New. Reinstate the mark_breakpoints_out call.
Remove shared libraries before attaching new executable. If user
wants to keep the inferior, keep it.
(displaced_step_fixup): Adjust to pass an address space to the
breakpoints module.
(resume): Ditto.
(clear_proceed_status): In all-stop mode, always clear the proceed
status of all threads.
(prepare_to_proceed): Adjust to pass an address space to the
breakpoints module.
(proceed): Ditto.
(adjust_pc_after_break): Ditto.
(handle_inferior_event): When handling a process exit, switch the
program space to the inferior's that had exited. Call
handle_vfork_child_exec_or_exit. Adjust to pass an address space
to the breakpoints module. In non-stop mode, when following a
fork and detach-fork is off, also resume the other branch. Handle
TARGET_WAITKIND_VFORK_DONE. Set the program space in sals.
(normal_stop): Prune inferiors.
(_initialize_infrun): Install the new "follow-exec-mode" command.
"detach-on-fork" moved here.
* regcache.h (get_regcache_aspace): Declare.
* regcache.c (struct regcache) <aspace>: New field.
(regcache_xmalloc): Clear the aspace.
(get_regcache_aspace): New.
(regcache_cpy): Copy the aspace field.
(regcache_cpy_no_passthrough): Ditto.
(get_thread_regcache): Fetch the thread's address space from the
target, and store it in the regcache.
* infcall.c (call_function_by_hand): Set the sal's pspace.
* arch-utils.c (default_has_shared_address_space): New.
* arch-utils.h (default_has_shared_address_space): Declare.
* gdbarch.sh (has_shared_address_space): New.
* gdbarch.h, gdbarch.c: Regenerate.
* linux-tdep.c: Include auxv.h, target.h, elf/common.h.
(linux_has_shared_address_space): New.
(_initialize_linux_tdep): Declare.
* arm-tdep.c (arm_software_single_step): Pass the frame's address
space to insert_single_step_breakpoint.
* arm-linux-tdep.c (arm_linux_software_single_step): Pass the
frame's pspace to breakpoint functions.
* cris-tdep.c (crisv32_single_step_through_delay): Ditto.
(cris_software_single_step): Ditto.
* mips-tdep.c (deal_with_atomic_sequence): Add frame argument.
Pass the frame's pspace to breakpoint functions.
(mips_software_single_step): Adjust.
(mips_single_step_through_delay): Adjust.
* rs6000-aix-tdep.c (rs6000_software_single_step): Adjust.
* rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust.
* solib-irix.c (enable_break): Adjust to pass the current frame's
address space to breakpoint functions.
* sparc-tdep.c (sparc_software_single_step): Ditto.
* spu-tdep.c (spu_software_single_step): Ditto.
* alpha-tdep.c (alpha_software_single_step): Ditto.
* record.c (record_wait): Adjust to pass an address space to the
breakpoints module.
* fork-child.c (fork_inferior): Set the new inferior's program and
address spaces.
* inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program
and address spaces.
(inf_ptrace_attach): Set the inferior's program and address spaces.
* linux-nat.c: Include "solib.h".
(linux_child_follow_fork): Manage parent and child's program and
address spaces. Clone the parent's program space if necessary.
Don't wait for the vfork to be done here. Refuse to resume if
following the vfork parent while leaving the child stopped.
(resume_callback): Don't resume a vfork parent.
(linux_nat_resume): Also check for pending events in the
lp->waitstatus field.
(linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE
events to the core.
(stop_wait_callback): Don't wait for SIGSTOP on vfork parents.
(cancel_breakpoint): Adjust.
* linux-thread-db.c (thread_db_wait): Don't remove thread event
breakpoints here.
(thread_db_mourn_inferior): Don't mark breakpoints out here.
Remove thread event breakpoints after mourning.
* corelow.c: Include progspace.h.
(core_open): Set the inferior's program and address spaces.
* remote.c (remote_add_inferior): Set the new inferior's program
and address spaces.
(remote_start_remote): Update address spaces.
(extended_remote_create_inferior_1): Don't init the thread list if
we already debugging other inferiors.
* darwin-nat.c (darwin_attach): Set the new inferior's program and
address spaces.
* gnu-nat.c (gnu_attach): Ditto.
* go32-nat.c (go32_create_inferior): Ditto.
* inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto.
* monitor.c (monitor_open): Ditto.
* nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto.
* procfs.c (do_attach): Ditto.
* windows-nat.c (do_initial_windows_stuff): Ditto.
* inflow.c (inferior_process_group)
(terminal_init_inferior_with_pgrp, terminal_inferior,
(terminal_ours_1, inflow_inferior_exit, copy_terminal_info)
(child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust
to use per-inferior data instead of inferior->terminal_info.
(inflow_inferior_data): New.
(inflow_new_inferior): Delete.
(inflow_inferior_data_cleanup): New.
(get_inflow_inferior_data): New.
* mi/mi-interp.c (mi_new_inferior): Rename to...
(mi_inferior_appeared): ... this.
(mi_interpreter_init): Adjust.
* tui/tui-disasm.c: Include "progspace.h".
(tui_set_disassem_content): Pass an address space to
breakpoint_here_p.
* NEWS: Mention multi-program debugging support. Mention new
commands "add-inferior", "clone-inferior", "remove-inferior",
"maint info program-spaces", and new option "set
follow-exec-mode".
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/doc/
* observer.texi (new_inferior): Rename to...
(inferior_appeared): ... this.
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/testsuite/
* gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork".
* gdb.base/foll-exec.exp: Adjust to expect a process id before
"Executing new program".
* gdb.base/foll-fork.exp: Adjust to spell out "follow-fork".
* gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being
left listed after having been killed.
* gdb.base/attach.exp: Adjust to spell out "symbol-file".
* gdb.base/maint.exp: Adjust test.
* Makefile.in (ALL_SUBDIRS): Add gdb.multi.
* gdb.multi/Makefile.in: New.
* gdb.multi/base.exp: New.
* gdb.multi/goodbye.c: New.
* gdb.multi/hangout.c: New.
* gdb.multi/hello.c: New.
* gdb.multi/bkpt-multi-exec.c: New.
* gdb.multi/bkpt-multi-exec.exp: New.
* gdb.multi/crashme.c: New.
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/doc/
* gdb.texinfo (Inferiors): Rename node to ...
(Inferiors and Programs): ... this. Mention running multiple
programs in the same debug session.
<info inferiors>: Mention the new 'Executable' column if "info
inferiors". Update examples. Document the "add-inferior",
"clone-inferior", "remove-inferior" and "maint info
program-spaces" commands.
(Process): Rename node to...
(Forks): ... this. Document "set|show follow-exec-mode".
2009-10-19 11:51:43 +02:00
|
|
|
|
else
|
|
|
|
|
inf = NULL;
|
2009-08-31 22:18:46 +02:00
|
|
|
|
|
|
|
|
|
if (inf != NULL
|
PR gdb/16575: stale breakpoint instructions in the code cache
In non-stop mode, or rather, breakpoints always-inserted mode, the
code cache can easily end up with stale breakpoint instructions:
All it takes is filling a cache line when breakpoints already exist in
that memory region, and then delete the breakpoint.
Vis. (from the new test):
(gdb) set breakpoint always-inserted on
(gdb) b 23
Breakpoint 2 at 0x400540: file ../../../src/gdb/testsuite/gdb.base/breakpoint-shadow.c, line 23.
(gdb) b 24
Breakpoint 3 at 0x400547: file ../../../src/gdb/testsuite/gdb.base/breakpoint-shadow.c, line 24.
disass main
Dump of assembler code for function main:
0x000000000040053c <+0>: push %rbp
0x000000000040053d <+1>: mov %rsp,%rbp
=> 0x0000000000400540 <+4>: movl $0x1,-0x4(%rbp)
0x0000000000400547 <+11>: movl $0x2,-0x4(%rbp)
0x000000000040054e <+18>: mov $0x0,%eax
0x0000000000400553 <+23>: pop %rbp
0x0000000000400554 <+24>: retq
End of assembler dump.
So far so good. Now flush the code cache:
(gdb) set code-cache off
(gdb) set code-cache on
Requesting a disassembly works as expected, breakpoint shadowing is
applied:
(gdb) disass main
Dump of assembler code for function main:
0x000000000040053c <+0>: push %rbp
0x000000000040053d <+1>: mov %rsp,%rbp
=> 0x0000000000400540 <+4>: movl $0x1,-0x4(%rbp)
0x0000000000400547 <+11>: movl $0x2,-0x4(%rbp)
0x000000000040054e <+18>: mov $0x0,%eax
0x0000000000400553 <+23>: pop %rbp
0x0000000000400554 <+24>: retq
End of assembler dump.
However, now delete the breakpoints:
(gdb) delete
Delete all breakpoints? (y or n) y
And disassembly shows the old breakpoint instructions:
(gdb) disass main
Dump of assembler code for function main:
0x000000000040053c <+0>: push %rbp
0x000000000040053d <+1>: mov %rsp,%rbp
=> 0x0000000000400540 <+4>: int3
0x0000000000400541 <+5>: rex.RB cld
0x0000000000400543 <+7>: add %eax,(%rax)
0x0000000000400545 <+9>: add %al,(%rax)
0x0000000000400547 <+11>: int3
0x0000000000400548 <+12>: rex.RB cld
0x000000000040054a <+14>: add (%rax),%al
0x000000000040054c <+16>: add %al,(%rax)
0x000000000040054e <+18>: mov $0x0,%eax
0x0000000000400553 <+23>: pop %rbp
0x0000000000400554 <+24>: retq
End of assembler dump.
Those breakpoint instructions are no longer installed in target memory
they're stale in the code cache. Easily confirmed by just disabling
the code cache:
(gdb) set code-cache off
(gdb) disass main
Dump of assembler code for function main:
0x000000000040053c <+0>: push %rbp
0x000000000040053d <+1>: mov %rsp,%rbp
=> 0x0000000000400540 <+4>: movl $0x1,-0x4(%rbp)
0x0000000000400547 <+11>: movl $0x2,-0x4(%rbp)
0x000000000040054e <+18>: mov $0x0,%eax
0x0000000000400553 <+23>: pop %rbp
0x0000000000400554 <+24>: retq
End of assembler dump.
I stumbled upon this when writing a patch to infrun.c, that made
handle_inferior_event & co fill in the cache before breakpoints were
removed from the target. Recall that wait_for_inferior flushes the
dcache for every event. So in that case, always-inserted mode was not
necessary to trigger this. It's just a convenient way to expose the
issue.
The dcache works at the raw memory level. We need to update it
whenever memory is written, no matter what kind of target memory
object was originally passed down by the caller. The issue is that
the dcache update code isn't reached when a caller explicitly writes
raw memory. Breakpoint insertion/removal is one such case --
mem-break.c uses target_write_read_memory/target_write_raw_memory.
The fix is to move the dcache update code from memory_xfer_partial_1
to raw_memory_xfer_partial so that it's always reachable.
When we do that, we can actually simplify a series of things.
memory_xfer_partial_1 no longer needs to handle writes for any kind of
memory object, and therefore dcache_xfer_memory no longer needs to
handle writes either. So the latter (dcache_xfer_memory) and its
callees can be simplified to only care about reads. While we're
touching dcache_xfer_memory's prototype, might as well rename it to
reflect that fact that it only handles reads, and make it follow the
new target_xfer_status/xfered_len style. This made me notice that
dcache_xfer_memory loses the real error status if a memory read fails:
we could have failed to read due to TARGET_XFER_E_UNAVAILABLE, for
instance, but we always return TARGET_XFER_E_IO, hence the FIXME note.
I felt that fixing that fell out of the scope of this patch.
Currently dcache_xfer_memory handles the case of a write failing. The
whole cache line is invalidated when that happens. However,
dcache_update, the sole mechanism for handling writes that will remain
after the patch, does not presently handle that scenario. That's a
bug. The patch makes it handle that, by passing down the
target_xfer_status status from the caller, so that it can better
decide what to do itself. While I was changing the function's
prototype, I constified the myaddr parameter, getting rid of the need
for the cast as seen in its existing caller.
Tested on x86_64 Fedora 17, native and gdbserver.
gdb/
2014-03-05 Pedro Alves <palves@redhat.com>
PR gdb/16575
* dcache.c (dcache_poke_byte): Constify ptr parameter. Return
void. Update comment.
(dcache_xfer_memory): Delete.
(dcache_read_memory_partial): New, based on the read bits of
dcache_xfer_memory.
(dcache_update): Add status parameter. Use ULONGEST for len, and
adjust. Discard cache lines if the reason for the update was
error.
* dcache.h (dcache_xfer_memory): Delete declaration.
(dcache_read_memory_partial): New declaration.
(dcache_update): Update prototype.
* target.c (raw_memory_xfer_partial): Update the dcache here.
(memory_xfer_partial_1): Don't handle dcache writes here.
gdb/testsuite/
2014-03-05 Pedro Alves <palves@redhat.com>
PR gdb/16575
* gdb.base/breakpoint-shadow.exp (compare_disassembly): New
procedure.
(top level): Adjust to use it. Add tests that exercise breakpoint
interaction with the code-cache.
2014-03-05 15:18:28 +01:00
|
|
|
|
&& readbuf != NULL
|
2010-03-12 04:54:45 +01:00
|
|
|
|
/* The dcache reads whole cache lines; that doesn't play well
|
|
|
|
|
with reading from a trace buffer, because reading outside of
|
|
|
|
|
the collected memory range fails. */
|
|
|
|
|
&& get_traceframe_number () == -1
|
2009-08-31 22:18:46 +02:00
|
|
|
|
&& (region->attrib.cache
|
2013-11-01 05:26:10 +01:00
|
|
|
|
|| (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY)
|
|
|
|
|
|| (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY)))
|
2006-08-15 20:46:25 +02:00
|
|
|
|
{
|
2013-10-29 14:34:20 +01:00
|
|
|
|
DCACHE *dcache = target_dcache_get_or_init ();
|
|
|
|
|
|
PR gdb/16575: stale breakpoint instructions in the code cache
In non-stop mode, or rather, breakpoints always-inserted mode, the
code cache can easily end up with stale breakpoint instructions:
All it takes is filling a cache line when breakpoints already exist in
that memory region, and then delete the breakpoint.
Vis. (from the new test):
(gdb) set breakpoint always-inserted on
(gdb) b 23
Breakpoint 2 at 0x400540: file ../../../src/gdb/testsuite/gdb.base/breakpoint-shadow.c, line 23.
(gdb) b 24
Breakpoint 3 at 0x400547: file ../../../src/gdb/testsuite/gdb.base/breakpoint-shadow.c, line 24.
disass main
Dump of assembler code for function main:
0x000000000040053c <+0>: push %rbp
0x000000000040053d <+1>: mov %rsp,%rbp
=> 0x0000000000400540 <+4>: movl $0x1,-0x4(%rbp)
0x0000000000400547 <+11>: movl $0x2,-0x4(%rbp)
0x000000000040054e <+18>: mov $0x0,%eax
0x0000000000400553 <+23>: pop %rbp
0x0000000000400554 <+24>: retq
End of assembler dump.
So far so good. Now flush the code cache:
(gdb) set code-cache off
(gdb) set code-cache on
Requesting a disassembly works as expected, breakpoint shadowing is
applied:
(gdb) disass main
Dump of assembler code for function main:
0x000000000040053c <+0>: push %rbp
0x000000000040053d <+1>: mov %rsp,%rbp
=> 0x0000000000400540 <+4>: movl $0x1,-0x4(%rbp)
0x0000000000400547 <+11>: movl $0x2,-0x4(%rbp)
0x000000000040054e <+18>: mov $0x0,%eax
0x0000000000400553 <+23>: pop %rbp
0x0000000000400554 <+24>: retq
End of assembler dump.
However, now delete the breakpoints:
(gdb) delete
Delete all breakpoints? (y or n) y
And disassembly shows the old breakpoint instructions:
(gdb) disass main
Dump of assembler code for function main:
0x000000000040053c <+0>: push %rbp
0x000000000040053d <+1>: mov %rsp,%rbp
=> 0x0000000000400540 <+4>: int3
0x0000000000400541 <+5>: rex.RB cld
0x0000000000400543 <+7>: add %eax,(%rax)
0x0000000000400545 <+9>: add %al,(%rax)
0x0000000000400547 <+11>: int3
0x0000000000400548 <+12>: rex.RB cld
0x000000000040054a <+14>: add (%rax),%al
0x000000000040054c <+16>: add %al,(%rax)
0x000000000040054e <+18>: mov $0x0,%eax
0x0000000000400553 <+23>: pop %rbp
0x0000000000400554 <+24>: retq
End of assembler dump.
Those breakpoint instructions are no longer installed in target memory
they're stale in the code cache. Easily confirmed by just disabling
the code cache:
(gdb) set code-cache off
(gdb) disass main
Dump of assembler code for function main:
0x000000000040053c <+0>: push %rbp
0x000000000040053d <+1>: mov %rsp,%rbp
=> 0x0000000000400540 <+4>: movl $0x1,-0x4(%rbp)
0x0000000000400547 <+11>: movl $0x2,-0x4(%rbp)
0x000000000040054e <+18>: mov $0x0,%eax
0x0000000000400553 <+23>: pop %rbp
0x0000000000400554 <+24>: retq
End of assembler dump.
I stumbled upon this when writing a patch to infrun.c, that made
handle_inferior_event & co fill in the cache before breakpoints were
removed from the target. Recall that wait_for_inferior flushes the
dcache for every event. So in that case, always-inserted mode was not
necessary to trigger this. It's just a convenient way to expose the
issue.
The dcache works at the raw memory level. We need to update it
whenever memory is written, no matter what kind of target memory
object was originally passed down by the caller. The issue is that
the dcache update code isn't reached when a caller explicitly writes
raw memory. Breakpoint insertion/removal is one such case --
mem-break.c uses target_write_read_memory/target_write_raw_memory.
The fix is to move the dcache update code from memory_xfer_partial_1
to raw_memory_xfer_partial so that it's always reachable.
When we do that, we can actually simplify a series of things.
memory_xfer_partial_1 no longer needs to handle writes for any kind of
memory object, and therefore dcache_xfer_memory no longer needs to
handle writes either. So the latter (dcache_xfer_memory) and its
callees can be simplified to only care about reads. While we're
touching dcache_xfer_memory's prototype, might as well rename it to
reflect that fact that it only handles reads, and make it follow the
new target_xfer_status/xfered_len style. This made me notice that
dcache_xfer_memory loses the real error status if a memory read fails:
we could have failed to read due to TARGET_XFER_E_UNAVAILABLE, for
instance, but we always return TARGET_XFER_E_IO, hence the FIXME note.
I felt that fixing that fell out of the scope of this patch.
Currently dcache_xfer_memory handles the case of a write failing. The
whole cache line is invalidated when that happens. However,
dcache_update, the sole mechanism for handling writes that will remain
after the patch, does not presently handle that scenario. That's a
bug. The patch makes it handle that, by passing down the
target_xfer_status status from the caller, so that it can better
decide what to do itself. While I was changing the function's
prototype, I constified the myaddr parameter, getting rid of the need
for the cast as seen in its existing caller.
Tested on x86_64 Fedora 17, native and gdbserver.
gdb/
2014-03-05 Pedro Alves <palves@redhat.com>
PR gdb/16575
* dcache.c (dcache_poke_byte): Constify ptr parameter. Return
void. Update comment.
(dcache_xfer_memory): Delete.
(dcache_read_memory_partial): New, based on the read bits of
dcache_xfer_memory.
(dcache_update): Add status parameter. Use ULONGEST for len, and
adjust. Discard cache lines if the reason for the update was
error.
* dcache.h (dcache_xfer_memory): Delete declaration.
(dcache_read_memory_partial): New declaration.
(dcache_update): Update prototype.
* target.c (raw_memory_xfer_partial): Update the dcache here.
(memory_xfer_partial_1): Don't handle dcache writes here.
gdb/testsuite/
2014-03-05 Pedro Alves <palves@redhat.com>
PR gdb/16575
* gdb.base/breakpoint-shadow.exp (compare_disassembly): New
procedure.
(top level): Adjust to use it. Add tests that exercise breakpoint
interaction with the code-cache.
2014-03-05 15:18:28 +01:00
|
|
|
|
return dcache_read_memory_partial (ops, dcache, memaddr, readbuf,
|
|
|
|
|
reg_len, xfered_len);
|
2006-08-15 20:46:25 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If none of those methods found the memory we wanted, fall back
|
|
|
|
|
to a target partial transfer. Normally a single call to
|
|
|
|
|
to_xfer_partial is enough; if it doesn't recognize an object
|
|
|
|
|
it will call the to_xfer_partial of the next target down.
|
|
|
|
|
But for memory this won't do. Memory is the only target
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
object which can be read from more than one valid target.
|
|
|
|
|
A core file, for instance, could have some of memory but
|
|
|
|
|
delegate other bits to the target below it. So, we must
|
|
|
|
|
manually try all targets. */
|
|
|
|
|
|
|
|
|
|
res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len,
|
|
|
|
|
xfered_len);
|
2006-08-15 20:46:25 +02:00
|
|
|
|
|
|
|
|
|
/* If we still haven't got anything, return the last error. We
|
|
|
|
|
give up. */
|
|
|
|
|
return res;
|
2004-09-30 18:18:57 +02:00
|
|
|
|
}
|
|
|
|
|
|
2011-12-06 21:03:14 +01:00
|
|
|
|
/* Perform a partial memory transfer. For docs see target.h,
|
|
|
|
|
to_xfer_partial. */
|
|
|
|
|
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
static enum target_xfer_status
|
2011-12-06 21:03:14 +01:00
|
|
|
|
memory_xfer_partial (struct target_ops *ops, enum target_object object,
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
gdb_byte *readbuf, const gdb_byte *writebuf,
|
|
|
|
|
ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len)
|
2011-12-06 21:03:14 +01:00
|
|
|
|
{
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
enum target_xfer_status res;
|
2011-12-06 21:03:14 +01:00
|
|
|
|
|
|
|
|
|
/* Zero length requests are ok and require no work. */
|
|
|
|
|
if (len == 0)
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
return TARGET_XFER_EOF;
|
2011-12-06 21:03:14 +01:00
|
|
|
|
|
|
|
|
|
/* Fill in READBUF with breakpoint shadows, or WRITEBUF with
|
|
|
|
|
breakpoint insns, thus hiding out from higher layers whether
|
|
|
|
|
there are software breakpoints inserted in the code stream. */
|
|
|
|
|
if (readbuf != NULL)
|
|
|
|
|
{
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len,
|
|
|
|
|
xfered_len);
|
2011-12-06 21:03:14 +01:00
|
|
|
|
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
if (res == TARGET_XFER_OK && !show_memory_breakpoints)
|
2014-02-21 15:55:37 +01:00
|
|
|
|
breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, *xfered_len);
|
2011-12-06 21:03:14 +01:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
void *buf;
|
|
|
|
|
struct cleanup *old_chain;
|
|
|
|
|
|
2013-11-04 11:39:20 +01:00
|
|
|
|
/* A large write request is likely to be partially satisfied
|
|
|
|
|
by memory_xfer_partial_1. We will continually malloc
|
|
|
|
|
and free a copy of the entire write request for breakpoint
|
|
|
|
|
shadow handling even though we only end up writing a small
|
|
|
|
|
subset of it. Cap writes to 4KB to mitigate this. */
|
|
|
|
|
len = min (4096, len);
|
|
|
|
|
|
2011-12-06 21:03:14 +01:00
|
|
|
|
buf = xmalloc (len);
|
|
|
|
|
old_chain = make_cleanup (xfree, buf);
|
|
|
|
|
memcpy (buf, writebuf, len);
|
|
|
|
|
|
|
|
|
|
breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len);
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len,
|
|
|
|
|
xfered_len);
|
2011-12-06 21:03:14 +01:00
|
|
|
|
|
|
|
|
|
do_cleanups (old_chain);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return res;
|
|
|
|
|
}
|
|
|
|
|
|
* breakpoint.h (breakpoint_restore_shadows): New
declaration.
* breakpoint.c (breakpoint_restore_shadows): New.
(read_memory_nobpt): Delete.
* gdbcore.h (read_memory_nobpt): Delete declaration.
* target.c (memory_xfer_partial): Call
breakpoint_restore_shadows.
(restore_show_memory_breakpoints)
(make_show_memory_beakpoints_cleanup): New.
(show_memory_breakpoints): New.
* target.h (make_show_memory_beakpoints_cleanup): Declare.
* ppc-linux-tdep.c (ppc_linux_memory_remove_breakpoint):
Make sure we see memory breakpoints when checking if
breakpoint is still there.
* alpha-tdep.c, alphanbsd-tdep.c, frame.c, frv-tdep.c,
hppa-linux-tdep.c, hppa-tdep.c, i386-linux-nat.c, i386-tdep.c,
m68klinux-tdep.c, mips-tdep.c, mn10300-tdep.c, s390-tdep.c,
sparc-tdep.c: Use target_read_memory instead of read_memory_nobpt.
2008-03-13 13:22:14 +01:00
|
|
|
|
static void
|
|
|
|
|
restore_show_memory_breakpoints (void *arg)
|
|
|
|
|
{
|
|
|
|
|
show_memory_breakpoints = (uintptr_t) arg;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
struct cleanup *
|
|
|
|
|
make_show_memory_breakpoints_cleanup (int show)
|
|
|
|
|
{
|
|
|
|
|
int current = show_memory_breakpoints;
|
|
|
|
|
|
2010-05-17 03:15:20 +02:00
|
|
|
|
show_memory_breakpoints = show;
|
* breakpoint.h (breakpoint_restore_shadows): New
declaration.
* breakpoint.c (breakpoint_restore_shadows): New.
(read_memory_nobpt): Delete.
* gdbcore.h (read_memory_nobpt): Delete declaration.
* target.c (memory_xfer_partial): Call
breakpoint_restore_shadows.
(restore_show_memory_breakpoints)
(make_show_memory_beakpoints_cleanup): New.
(show_memory_breakpoints): New.
* target.h (make_show_memory_beakpoints_cleanup): Declare.
* ppc-linux-tdep.c (ppc_linux_memory_remove_breakpoint):
Make sure we see memory breakpoints when checking if
breakpoint is still there.
* alpha-tdep.c, alphanbsd-tdep.c, frame.c, frv-tdep.c,
hppa-linux-tdep.c, hppa-tdep.c, i386-linux-nat.c, i386-tdep.c,
m68klinux-tdep.c, mips-tdep.c, mn10300-tdep.c, s390-tdep.c,
sparc-tdep.c: Use target_read_memory instead of read_memory_nobpt.
2008-03-13 13:22:14 +01:00
|
|
|
|
return make_cleanup (restore_show_memory_breakpoints,
|
|
|
|
|
(void *) (uintptr_t) current);
|
|
|
|
|
}
|
|
|
|
|
|
2009-11-14 00:26:19 +01:00
|
|
|
|
/* For docs see target.h, to_xfer_partial. */
|
|
|
|
|
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
enum target_xfer_status
|
2004-09-30 22:36:27 +02:00
|
|
|
|
target_xfer_partial (struct target_ops *ops,
|
|
|
|
|
enum target_object object, const char *annex,
|
2013-11-04 10:53:56 +01:00
|
|
|
|
gdb_byte *readbuf, const gdb_byte *writebuf,
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
ULONGEST offset, ULONGEST len,
|
|
|
|
|
ULONGEST *xfered_len)
|
2004-09-30 22:36:27 +02:00
|
|
|
|
{
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
enum target_xfer_status retval;
|
2004-09-30 22:36:27 +02:00
|
|
|
|
|
|
|
|
|
gdb_assert (ops->to_xfer_partial != NULL);
|
2006-08-15 20:46:25 +02:00
|
|
|
|
|
2014-01-29 04:48:40 +01:00
|
|
|
|
/* Transfer is done when LEN is zero. */
|
|
|
|
|
if (len == 0)
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
return TARGET_XFER_EOF;
|
2014-01-29 04:48:40 +01:00
|
|
|
|
|
2010-06-12 02:05:22 +02:00
|
|
|
|
if (writebuf && !may_write_memory)
|
|
|
|
|
error (_("Writing to memory is not allowed (addr %s, len %s)"),
|
|
|
|
|
core_addr_to_string_nz (offset), plongest (len));
|
|
|
|
|
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
*xfered_len = 0;
|
|
|
|
|
|
2006-08-15 20:46:25 +02:00
|
|
|
|
/* If this is a memory transfer, let the memory-specific code
|
|
|
|
|
have a look at it instead. Memory transfers are more
|
|
|
|
|
complicated. */
|
2013-11-01 05:26:10 +01:00
|
|
|
|
if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY
|
|
|
|
|
|| object == TARGET_OBJECT_CODE_MEMORY)
|
2009-08-31 22:18:46 +02:00
|
|
|
|
retval = memory_xfer_partial (ops, object, readbuf,
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
writebuf, offset, len, xfered_len);
|
Delegate to target_ops->beneath for TARGET_OBJECT_RAW_MEMORY
GDB on x86_64-linux is unable to disassemble on core-file target.
$ ./gdb ./testsuite/gdb.base/corefile
(gdb) core-file ./testsuite/gdb.base/corefile.core
(gdb) disassemble main
Dump of assembler code for function main:
0x0000000000400976 <+0>: Cannot access memory at address 0x400976
However, it works if we turn code-cache off.
(gdb) set code-cache off
(gdb) disassemble main,+4
Dump of assembler code from 0x400976 to 0x40097a:
0x0000000000400976 <main+0>: push %rbp
0x0000000000400977 <main+1>: mov %rsp,%rbp
End of assembler dump.
When code-cache is off, GDB will iterate target_ops from top to bottom
and call to_xfer_partial. When current_target is "core", it will call
to_xfer_partial of target "exec", which reads the contents for
disassemble. However, dcache uses TARGET_OBJECT_RAW_MEMORY to read,
but target_xfer_partial doesn't delegate requests to beneath for
TARGET_OBJECT_RAW_MEMORY.
This patch factors out the iteration from top to bottom to a new
function, raw_memory_xfer_partial, and use it for
TARGET_OBJECT_RAW_MEMORY.
Regression tested on x86_64-linux.
gdb:
2013-11-29 Yao Qi <yao@codesourcery.com>
Pedro Alves <palves@redhat.com>
* dcache.c (dcache_read_line): Use current_target.beneath
instead of ¤t_target.
* target.c (memory_xfer_partial_1): Factor code out to ...
(raw_memory_xfer_partial): ... it. New function.
(target_xfer_partial): Call raw_memory_xfer_partial if OBJECT
is TARGET_OBJECT_RAW_MEMORY.
2013-11-27 11:01:05 +01:00
|
|
|
|
else if (object == TARGET_OBJECT_RAW_MEMORY)
|
2006-08-15 20:46:25 +02:00
|
|
|
|
{
|
Really fail inserting software breakpoints on read-only regions
Currently, with "set breakpoint auto-hw off", we'll still try to
insert a software breakpoint at addresses covered by supposedly
read-only or inacessible regions:
(top-gdb) mem 0x443000 0x450000 ro
(top-gdb) set mem inaccessible-by-default off
(top-gdb) disassemble
Dump of assembler code for function main:
0x0000000000443956 <+34>: movq $0x0,0x10(%rax)
=> 0x000000000044395e <+42>: movq $0x0,0x18(%rax)
0x0000000000443966 <+50>: mov -0x24(%rbp),%eax
0x0000000000443969 <+53>: mov %eax,-0x20(%rbp)
End of assembler dump.
(top-gdb) b *0x0000000000443969
Breakpoint 5 at 0x443969: file ../../src/gdb/gdb.c, line 29.
(top-gdb) c
Continuing.
warning: cannot set software breakpoint at readonly address 0x443969
Breakpoint 5, 0x0000000000443969 in main (argc=1, argv=0x7fffffffd918) at ../../src/gdb/gdb.c:29
29 args.argc = argc;
(top-gdb)
We warn, saying that the insertion can't be done, but then proceed
attempting the insertion anyway, and in case of manually added
regions, the insert actually succeeds.
This is a regression; GDB used to fail inserting the breakpoint. More
below.
I stumbled on this as I wrote a test that manually sets up a read-only
memory region with the "mem" command, in order to test GDB's behavior
with breakpoints set on read-only regions, even when the real memory
the breakpoints are set at isn't really read-only. I wanted that in
order to add a test that exercises software single-stepping through
read-only regions.
Note that the memory regions that target_memory_map returns aren't
like e.g., what would expect to see in /proc/PID/maps on Linux.
Instead, they're the physical memory map from the _debuggers_
perspective. E.g., a read-only region would be real ROM or flash
memory, while a read-only+execute mapping in /proc/PID/maps is still
read-write to the debugger (otherwise the debugger wouldn't be able to
set software breakpoints in the code segment).
If one tries to manually write to memory that falls within a memory
region that is known to be read-only, with e.g., "p foo = 1", then we
hit a check in memory_xfer_partial_1 before the write mananges to make
it to the target side.
But writing a software/memory breakpoint nowadays goes through
target_write_raw_memory, and unlike when writing memory with
TARGET_OBJECT_MEMORY, nothing on the TARGET_OBJECT_RAW_MEMORY path
checks whether we're trying to write to a read-only region.
At the time "breakpoint auto-hw" was added, we didn't have the
TARGET_OBJECT_MEMORY vs TARGET_OBJECT_RAW_MEMORY target object
distinction yet, and the code path in memory_xfer_partial that blocks
writes to read-only memory was hit for memory breakpoints too. With
GDB 6.8 we had:
warning: cannot set software breakpoint at readonly address 0000000000443943
Warning:
Cannot insert breakpoint 1.
Error accessing memory address 0x443943: Input/output error.
So I started out by fixing this by adding the memory region validation
to TARGET_OBJECT_RAW_MEMORY too.
But later, when testing against GDBserver, I realized that that would
only block software/memory breakpoints GDB itself inserts with
gdb/mem-break.c. If a target has a to_insert_breakpoint method, the
insertion request will still pass through to the target. So I ended
up converting the "cannot set breakpoint" warning in breakpoint.c to a
real error return, thus blocking the insertion sooner.
With that, we'll end up no longer needing the TARGET_OBJECT_RAW_MEMORY
changes once software single-step breakpoints are converted to real
breakpoints. We need them today as software single-step breakpoints
bypass insert_bp_location. But, it'll be best to leave that in as
safeguard anyway, for other direct uses of TARGET_OBJECT_RAW_MEMORY.
Tested on x86_64 Fedora 20, native and gdbserver.
gdb/
2014-10-01 Pedro Alves <palves@redhat.com>
* breakpoint.c (insert_bp_location): Error out if inserting a
software breakpoint at a read-only address.
* target.c (memory_xfer_check_region): New function, factored out
from ...
(memory_xfer_partial_1): ... this. Make the 'reg_len' local a
ULONGEST.
(target_xfer_partial) <TARGET_OBJECT_RAW_MEMORY>: Check the access
against the memory region attributes.
gdb/testsuite/
2014-10-01 Pedro Alves <palves@redhat.com>
* gdb.base/breakpoint-in-ro-region.c: New file.
* gdb.base/breakpoint-in-ro-region.exp: New file.
2014-10-02 00:31:55 +02:00
|
|
|
|
/* Skip/avoid accessing the target if the memory region
|
|
|
|
|
attributes block the access. Check this here instead of in
|
|
|
|
|
raw_memory_xfer_partial as otherwise we'd end up checking
|
|
|
|
|
this twice in the case of the memory_xfer_partial path is
|
|
|
|
|
taken; once before checking the dcache, and another in the
|
|
|
|
|
tail call to raw_memory_xfer_partial. */
|
|
|
|
|
if (!memory_xfer_check_region (readbuf, writebuf, offset, len, &len,
|
|
|
|
|
NULL))
|
|
|
|
|
return TARGET_XFER_E_IO;
|
|
|
|
|
|
Delegate to target_ops->beneath for TARGET_OBJECT_RAW_MEMORY
GDB on x86_64-linux is unable to disassemble on core-file target.
$ ./gdb ./testsuite/gdb.base/corefile
(gdb) core-file ./testsuite/gdb.base/corefile.core
(gdb) disassemble main
Dump of assembler code for function main:
0x0000000000400976 <+0>: Cannot access memory at address 0x400976
However, it works if we turn code-cache off.
(gdb) set code-cache off
(gdb) disassemble main,+4
Dump of assembler code from 0x400976 to 0x40097a:
0x0000000000400976 <main+0>: push %rbp
0x0000000000400977 <main+1>: mov %rsp,%rbp
End of assembler dump.
When code-cache is off, GDB will iterate target_ops from top to bottom
and call to_xfer_partial. When current_target is "core", it will call
to_xfer_partial of target "exec", which reads the contents for
disassemble. However, dcache uses TARGET_OBJECT_RAW_MEMORY to read,
but target_xfer_partial doesn't delegate requests to beneath for
TARGET_OBJECT_RAW_MEMORY.
This patch factors out the iteration from top to bottom to a new
function, raw_memory_xfer_partial, and use it for
TARGET_OBJECT_RAW_MEMORY.
Regression tested on x86_64-linux.
gdb:
2013-11-29 Yao Qi <yao@codesourcery.com>
Pedro Alves <palves@redhat.com>
* dcache.c (dcache_read_line): Use current_target.beneath
instead of ¤t_target.
* target.c (memory_xfer_partial_1): Factor code out to ...
(raw_memory_xfer_partial): ... it. New function.
(target_xfer_partial): Call raw_memory_xfer_partial if OBJECT
is TARGET_OBJECT_RAW_MEMORY.
2013-11-27 11:01:05 +01:00
|
|
|
|
/* Request the normal memory object from other layers. */
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len,
|
|
|
|
|
xfered_len);
|
2006-08-15 20:46:25 +02:00
|
|
|
|
}
|
Delegate to target_ops->beneath for TARGET_OBJECT_RAW_MEMORY
GDB on x86_64-linux is unable to disassemble on core-file target.
$ ./gdb ./testsuite/gdb.base/corefile
(gdb) core-file ./testsuite/gdb.base/corefile.core
(gdb) disassemble main
Dump of assembler code for function main:
0x0000000000400976 <+0>: Cannot access memory at address 0x400976
However, it works if we turn code-cache off.
(gdb) set code-cache off
(gdb) disassemble main,+4
Dump of assembler code from 0x400976 to 0x40097a:
0x0000000000400976 <main+0>: push %rbp
0x0000000000400977 <main+1>: mov %rsp,%rbp
End of assembler dump.
When code-cache is off, GDB will iterate target_ops from top to bottom
and call to_xfer_partial. When current_target is "core", it will call
to_xfer_partial of target "exec", which reads the contents for
disassemble. However, dcache uses TARGET_OBJECT_RAW_MEMORY to read,
but target_xfer_partial doesn't delegate requests to beneath for
TARGET_OBJECT_RAW_MEMORY.
This patch factors out the iteration from top to bottom to a new
function, raw_memory_xfer_partial, and use it for
TARGET_OBJECT_RAW_MEMORY.
Regression tested on x86_64-linux.
gdb:
2013-11-29 Yao Qi <yao@codesourcery.com>
Pedro Alves <palves@redhat.com>
* dcache.c (dcache_read_line): Use current_target.beneath
instead of ¤t_target.
* target.c (memory_xfer_partial_1): Factor code out to ...
(raw_memory_xfer_partial): ... it. New function.
(target_xfer_partial): Call raw_memory_xfer_partial if OBJECT
is TARGET_OBJECT_RAW_MEMORY.
2013-11-27 11:01:05 +01:00
|
|
|
|
else
|
|
|
|
|
retval = ops->to_xfer_partial (ops, object, annex, readbuf,
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
writebuf, offset, len, xfered_len);
|
2006-08-15 20:46:25 +02:00
|
|
|
|
|
2004-09-30 22:36:27 +02:00
|
|
|
|
if (targetdebug)
|
|
|
|
|
{
|
|
|
|
|
const unsigned char *myaddr = NULL;
|
|
|
|
|
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog,
|
2011-01-05 23:22:53 +01:00
|
|
|
|
"%s:target_xfer_partial "
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
"(%d, %s, %s, %s, %s, %s) = %d, %s",
|
2004-09-30 22:36:27 +02:00
|
|
|
|
ops->to_shortname,
|
|
|
|
|
(int) object,
|
|
|
|
|
(annex ? annex : "(null)"),
|
2009-01-11 14:23:42 +01:00
|
|
|
|
host_address_to_string (readbuf),
|
|
|
|
|
host_address_to_string (writebuf),
|
2008-09-05 14:57:16 +02:00
|
|
|
|
core_addr_to_string_nz (offset),
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
pulongest (len), retval,
|
|
|
|
|
pulongest (*xfered_len));
|
2004-09-30 22:36:27 +02:00
|
|
|
|
|
|
|
|
|
if (readbuf)
|
|
|
|
|
myaddr = readbuf;
|
|
|
|
|
if (writebuf)
|
|
|
|
|
myaddr = writebuf;
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
if (retval == TARGET_XFER_OK && myaddr != NULL)
|
2004-09-30 22:36:27 +02:00
|
|
|
|
{
|
|
|
|
|
int i;
|
2006-08-16 20:31:03 +02:00
|
|
|
|
|
2004-09-30 22:36:27 +02:00
|
|
|
|
fputs_unfiltered (", bytes =", gdb_stdlog);
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
for (i = 0; i < *xfered_len; i++)
|
2004-09-30 22:36:27 +02:00
|
|
|
|
{
|
2009-01-11 14:23:42 +01:00
|
|
|
|
if ((((intptr_t) &(myaddr[i])) & 0xf) == 0)
|
2004-09-30 22:36:27 +02:00
|
|
|
|
{
|
|
|
|
|
if (targetdebug < 2 && i > 0)
|
|
|
|
|
{
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog, " ...");
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog, "\n");
|
|
|
|
|
}
|
2006-08-16 20:31:03 +02:00
|
|
|
|
|
2004-09-30 22:36:27 +02:00
|
|
|
|
fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff);
|
|
|
|
|
}
|
|
|
|
|
}
|
2006-08-16 20:31:03 +02:00
|
|
|
|
|
2004-09-30 22:36:27 +02:00
|
|
|
|
fputc_unfiltered ('\n', gdb_stdlog);
|
|
|
|
|
}
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
|
|
|
|
|
/* Check implementations of to_xfer_partial update *XFERED_LEN
|
|
|
|
|
properly. Do assertion after printing debug messages, so that we
|
|
|
|
|
can find more clues on assertion failure from debugging messages. */
|
2014-02-23 07:34:29 +01:00
|
|
|
|
if (retval == TARGET_XFER_OK || retval == TARGET_XFER_UNAVAILABLE)
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
gdb_assert (*xfered_len > 0);
|
|
|
|
|
|
2004-09-30 22:36:27 +02:00
|
|
|
|
return retval;
|
|
|
|
|
}
|
|
|
|
|
|
Stop using errno values around target_xfer interfaces and memory errors.
target_read_memory & friends build on top of target_read (thus on top
of the target_xfer machinery), but turn all errors to EIO, an errno
value. I think we'd better convert all these to return a
target_xfer_error too, like target_xfer_partial in a previous patch.
The patch starts by doing that.
(The patch does not add a enum target_xfer_error value for '0'/no
error, and likewise does not change the return type of several of
these functions to enum target_xfer_error, because different functions
return '0' with different semantics.)
I audited the tree for memory_error calls, EIO checks, places where
GDB hardcodes 'errno = EIO', and also for strerror calls. What I
found is that nowadays there's really no need to handle random errno
values, other than the EIOs gdb itself hardcodes. No doubt errno
values would appear in common code back in the day when
target_xfer_memory was the main interface to access memory, but
nowadays, any errno value that deprecated interface could return is
just absorved by default_xfer_partial:
else if (xfered == 0 && errno == 0)
/* "deprecated_xfer_memory" uses 0, cross checked against
ERRNO as one indication of an error. */
return 0;
else
return -1;
There are two places in the code that check for EIO and print "out of
bounds", and defer to strerror for other errors. That's
c-lang.c:c_get_string, and valprint.c.:val_print_string. AFAICT, the
strerror branch can never be reached nowadays, as the only error
possible to get at those points is EIO, given that it's GDB itself
that set that errno value (in target_read_memory, etc.).
breakpoint.c:insert_bp_location always prints the error val as if an
errno, returned by target_insert_breakpoint, with strerr. Now the
error here is either always EIO for mem-break.c targets (again
hardcoded by the target_read_memory/target_write_memory functions), so
this always prints "Input/output error" or similar (depending on
host), or, for remote targets (and probably others), this gem:
Error accessing memory address 0x80200400: Unknown error -1.
This patch makes these 3 places print the exact same error
memory_error prints. This changes output, but I think this is better,
for making memory error output consistent with other commands, and, it
means we have a central place to tweak for memory errors.
E.g., this changes:
Cannot insert breakpoint 1.
Error accessing memory address 0x5fc660: Input/output error.
to:
Cannot insert breakpoint 1.
Cannot access memory at address 0x5fc660
Which I find pretty much acceptable.
Surprisingly, only py-prettyprint.exp had a regression, for needing an
adjustment. I also grepped the testsuite for the old errors, and
found no other hits.
Now that errno values aren't used anywhere in any of these memory
access related routines, I made memory_error itself take a
target_xfer_error instead of an errno. The new
target_xfer_memory_error function added recently is no longer
necessary, and is thus removed.
Tested on x86_64 Fedora 17, native and gdbserver.
gdb/
2013-10-09 Pedro Alves <palves@redhat.com>
* breakpoint.c (insert_bp_location): Use memory_error_message to
build the memory error string.
* c-lang.c: Include "gdbcore.h".
(c_get_string): Use memory_error to throw error.
(target_xfer_memory_error): Delete.
(memory_error_message): New, factored out from
target_xfer_memory_error.
(memory_error): Change parameter type to target_xfer_error.
Rewrite.
(read_memory): Use memory_error instead of
target_xfer_memory_error.
* gdbcore.h: Include "target.h".
(memory_error): Change parameter type to target_xfer_error.
(memory_error_message): Declare function.
* target.c (target_read_memory, target_read_stack)
(target_write_memory, target_write_raw_memory): Return
TARGET_XFER_E_IO on error. Adjust comments.
(get_target_memory): Pass TARGET_XFER_E_IO to memory_error,
instead of EIO.
* target.h (target_read, target_insert_breakpoint)
(target_remove_breakpoint): Adjust comments.
* valprint.c (partial_memory_read): Rename parameter, and adjust
comment.
(val_print_string): Use memory_error_message to build the memory
error string.
gdb/testsuite/
2013-10-09 Pedro Alves <palves@redhat.com>
* gdb.python/py-prettyprint.exp (run_lang_tests): Adjust expected
output.
2013-10-09 19:00:00 +02:00
|
|
|
|
/* Read LEN bytes of target memory at address MEMADDR, placing the
|
|
|
|
|
results in GDB's memory at MYADDR. Returns either 0 for success or
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
TARGET_XFER_E_IO if any error occurs.
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
If an error occurs, no guarantee is made about the contents of the data at
|
|
|
|
|
MYADDR. In particular, the caller should not depend upon partial reads
|
|
|
|
|
filling the buffer with good data. There is no way for the caller to know
|
|
|
|
|
how much good data might have been transfered anyway. Callers that can
|
2006-08-15 20:46:25 +02:00
|
|
|
|
deal with partial reads should call target_read (which will retry until
|
2011-01-11 22:53:25 +01:00
|
|
|
|
it makes no progress, and then return how much was transferred). */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
int
|
2012-06-05 23:18:05 +02:00
|
|
|
|
target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
* target.h (struct target_ops): Make to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
methods instead of variables.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1)
(target_has_registers_1, target_has_execution_1): Declare
functions.
(target_has_all_memory): Rewrite to call target_has_all_memory_1.
(target_has_memory): Rewrite to call target_has_memory_1.
(target_has_stack): Rewrite to call target_has_all_stack_1.
(target_has_registers): Rewrite to call target_has_registers_1.
(target_has_execution): Rewrite to call target_has_execution_1.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Declare.
(target_mark_running, target_mark_exited): Delete declarations.
* target.c (default_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution): New.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1,
target_has_registers_1, target_has_execution_1): New.
(add_target): Default the to_has_all_memory, to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
callbacks to return 0.
(update_current_target): Do not inherit to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers or to_has_execution.
(target_mark_running, target_mark_exited): Delete.
(memory_xfer_partial): Adjust.
(target_read_memory, target_write_memory, target_search_memory):
Dispatch to the the top-most target, not the flattened
current_target.
(target_info): Adjust.
(init_dummy_target): Install return_zero as callback for
to_has_all_memory, to_has_memory, to_has_stack, to_has_registers,
to_has_execution.
(set_maintenance_target_async_permitted): Use have_live_inferiors
instead of target_has_execution.
* target-memory.c (target_write_memory_blocks): Dispatch memory
writes to the the top-most target, not the flattened
current_target.
* breakpoint.c (insert_breakpoints): Don't check for
target_has_execution here.
(update_global_location_list): Check if there are live inferiors
to debug instead of target_has_execution.
* infcmd.c (kill_command, detach_command): Check if there are
inferiors instead of target_has_execution.
* inferior.h (have_live_inferiors): Declare.
* inferior.c (have_live_inferiors): New.
* infrun.c (normal_stop): Don't check for target_has_execution to
finish the thread states.
* thread.c (is_thread_state, is_stopped, is_exited, is_running)
(any_running, is_executing): Remove checks for
target_has_execution.
* top.c (kill_or_detach): Don't try to kill core inferiors.
(quit_target): Don't check for target_has_execution.
* corelow.c (core_has_memory, core_has_stack, core_has_registers):
New.
(init_core_ops): Install core_has_memory, core_has_stack and
core_has_registers.
* exec.c (exec_has_memory): New.
(init_exec_ops): Install exec_has_memory.
* remote.c (remote_add_inferior): Don't call target_mark_running.
(remote_start_remote): Don't call target_mark_exited or call
target_mark_running.
(remote_open_1): Use have_inferiors instead of
target_has_execution. Don't use target_mark_exited.
(init_remote_ops): Install deafult_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution.
* bsd-kvm.c (bsd_kvm_return_one): New.
(bsd_kvm_add_target): Register bsd_kvm_return_one as
to_has_memory, to_has_stack and to_has_registers callbacks.
* remote-m32r-sdi.c (m32r_return_one): New.
(init_m32r_ops): Register it.
* inf-child.c (inf_child_target): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* gnu-nat.c (init_gnu_ops): Likewise.
* go32-nat.c (init_go32_ops): Likewise.
* hpux-thread.c (init_hpux_thread_ops): Likewise.
* monitor.c (init_base_monitor_ops): Likewise.
* nto-procfs.c (init_procfs_ops): Likewise.
* remote-mips.c (_initialize_remote_mips): Likewise.
* windows-nat.c (init_windows_ops): Likewise.
* remote-sim.c (gdbsim_create_inferior): Don't use
target_mark_running or target_mark_exited.
(gdbsim_mourn_inferior): Don't call target_mark_exited.
(init_gdbsim_ops): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* linux-nat.c (linux_nat_xfer_partial): If reading memory, and
there's no inferior selected, defer to a lower stratum.
2009-06-07 18:46:48 +02:00
|
|
|
|
/* Dispatch to the topmost target, not the flattened current_target.
|
|
|
|
|
Memory accesses check target->to_has_(all_)memory, and the
|
|
|
|
|
flattened target doesn't inherit those. */
|
|
|
|
|
if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL,
|
2006-08-15 20:46:25 +02:00
|
|
|
|
myaddr, memaddr, len) == len)
|
|
|
|
|
return 0;
|
2004-09-30 18:18:57 +02:00
|
|
|
|
else
|
Stop using errno values around target_xfer interfaces and memory errors.
target_read_memory & friends build on top of target_read (thus on top
of the target_xfer machinery), but turn all errors to EIO, an errno
value. I think we'd better convert all these to return a
target_xfer_error too, like target_xfer_partial in a previous patch.
The patch starts by doing that.
(The patch does not add a enum target_xfer_error value for '0'/no
error, and likewise does not change the return type of several of
these functions to enum target_xfer_error, because different functions
return '0' with different semantics.)
I audited the tree for memory_error calls, EIO checks, places where
GDB hardcodes 'errno = EIO', and also for strerror calls. What I
found is that nowadays there's really no need to handle random errno
values, other than the EIOs gdb itself hardcodes. No doubt errno
values would appear in common code back in the day when
target_xfer_memory was the main interface to access memory, but
nowadays, any errno value that deprecated interface could return is
just absorved by default_xfer_partial:
else if (xfered == 0 && errno == 0)
/* "deprecated_xfer_memory" uses 0, cross checked against
ERRNO as one indication of an error. */
return 0;
else
return -1;
There are two places in the code that check for EIO and print "out of
bounds", and defer to strerror for other errors. That's
c-lang.c:c_get_string, and valprint.c.:val_print_string. AFAICT, the
strerror branch can never be reached nowadays, as the only error
possible to get at those points is EIO, given that it's GDB itself
that set that errno value (in target_read_memory, etc.).
breakpoint.c:insert_bp_location always prints the error val as if an
errno, returned by target_insert_breakpoint, with strerr. Now the
error here is either always EIO for mem-break.c targets (again
hardcoded by the target_read_memory/target_write_memory functions), so
this always prints "Input/output error" or similar (depending on
host), or, for remote targets (and probably others), this gem:
Error accessing memory address 0x80200400: Unknown error -1.
This patch makes these 3 places print the exact same error
memory_error prints. This changes output, but I think this is better,
for making memory error output consistent with other commands, and, it
means we have a central place to tweak for memory errors.
E.g., this changes:
Cannot insert breakpoint 1.
Error accessing memory address 0x5fc660: Input/output error.
to:
Cannot insert breakpoint 1.
Cannot access memory at address 0x5fc660
Which I find pretty much acceptable.
Surprisingly, only py-prettyprint.exp had a regression, for needing an
adjustment. I also grepped the testsuite for the old errors, and
found no other hits.
Now that errno values aren't used anywhere in any of these memory
access related routines, I made memory_error itself take a
target_xfer_error instead of an errno. The new
target_xfer_memory_error function added recently is no longer
necessary, and is thus removed.
Tested on x86_64 Fedora 17, native and gdbserver.
gdb/
2013-10-09 Pedro Alves <palves@redhat.com>
* breakpoint.c (insert_bp_location): Use memory_error_message to
build the memory error string.
* c-lang.c: Include "gdbcore.h".
(c_get_string): Use memory_error to throw error.
(target_xfer_memory_error): Delete.
(memory_error_message): New, factored out from
target_xfer_memory_error.
(memory_error): Change parameter type to target_xfer_error.
Rewrite.
(read_memory): Use memory_error instead of
target_xfer_memory_error.
* gdbcore.h: Include "target.h".
(memory_error): Change parameter type to target_xfer_error.
(memory_error_message): Declare function.
* target.c (target_read_memory, target_read_stack)
(target_write_memory, target_write_raw_memory): Return
TARGET_XFER_E_IO on error. Adjust comments.
(get_target_memory): Pass TARGET_XFER_E_IO to memory_error,
instead of EIO.
* target.h (target_read, target_insert_breakpoint)
(target_remove_breakpoint): Adjust comments.
* valprint.c (partial_memory_read): Rename parameter, and adjust
comment.
(val_print_string): Use memory_error_message to build the memory
error string.
gdb/testsuite/
2013-10-09 Pedro Alves <palves@redhat.com>
* gdb.python/py-prettyprint.exp (run_lang_tests): Adjust expected
output.
2013-10-09 19:00:00 +02:00
|
|
|
|
return TARGET_XFER_E_IO;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
2014-09-11 12:19:56 +02:00
|
|
|
|
/* See target/target.h. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
target_read_uint32 (CORE_ADDR memaddr, uint32_t *result)
|
|
|
|
|
{
|
|
|
|
|
gdb_byte buf[4];
|
|
|
|
|
int r;
|
|
|
|
|
|
|
|
|
|
r = target_read_memory (memaddr, buf, sizeof buf);
|
|
|
|
|
if (r != 0)
|
|
|
|
|
return r;
|
|
|
|
|
*result = extract_unsigned_integer (buf, sizeof buf,
|
|
|
|
|
gdbarch_byte_order (target_gdbarch ()));
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2013-12-02 11:12:24 +01:00
|
|
|
|
/* Like target_read_memory, but specify explicitly that this is a read
|
|
|
|
|
from the target's raw memory. That is, this read bypasses the
|
|
|
|
|
dcache, breakpoint shadowing, etc. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len)
|
|
|
|
|
{
|
|
|
|
|
/* See comment in target_read_memory about why the request starts at
|
|
|
|
|
current_target.beneath. */
|
|
|
|
|
if (target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL,
|
|
|
|
|
myaddr, memaddr, len) == len)
|
|
|
|
|
return 0;
|
|
|
|
|
else
|
|
|
|
|
return TARGET_XFER_E_IO;
|
|
|
|
|
}
|
|
|
|
|
|
2009-08-31 22:18:46 +02:00
|
|
|
|
/* Like target_read_memory, but specify explicitly that this is a read from
|
|
|
|
|
the target's stack. This may trigger different cache behavior. */
|
|
|
|
|
|
|
|
|
|
int
|
2012-06-05 23:22:31 +02:00
|
|
|
|
target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len)
|
2009-08-31 22:18:46 +02:00
|
|
|
|
{
|
2013-12-02 11:12:24 +01:00
|
|
|
|
/* See comment in target_read_memory about why the request starts at
|
|
|
|
|
current_target.beneath. */
|
2009-08-31 22:18:46 +02:00
|
|
|
|
if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL,
|
|
|
|
|
myaddr, memaddr, len) == len)
|
|
|
|
|
return 0;
|
|
|
|
|
else
|
Stop using errno values around target_xfer interfaces and memory errors.
target_read_memory & friends build on top of target_read (thus on top
of the target_xfer machinery), but turn all errors to EIO, an errno
value. I think we'd better convert all these to return a
target_xfer_error too, like target_xfer_partial in a previous patch.
The patch starts by doing that.
(The patch does not add a enum target_xfer_error value for '0'/no
error, and likewise does not change the return type of several of
these functions to enum target_xfer_error, because different functions
return '0' with different semantics.)
I audited the tree for memory_error calls, EIO checks, places where
GDB hardcodes 'errno = EIO', and also for strerror calls. What I
found is that nowadays there's really no need to handle random errno
values, other than the EIOs gdb itself hardcodes. No doubt errno
values would appear in common code back in the day when
target_xfer_memory was the main interface to access memory, but
nowadays, any errno value that deprecated interface could return is
just absorved by default_xfer_partial:
else if (xfered == 0 && errno == 0)
/* "deprecated_xfer_memory" uses 0, cross checked against
ERRNO as one indication of an error. */
return 0;
else
return -1;
There are two places in the code that check for EIO and print "out of
bounds", and defer to strerror for other errors. That's
c-lang.c:c_get_string, and valprint.c.:val_print_string. AFAICT, the
strerror branch can never be reached nowadays, as the only error
possible to get at those points is EIO, given that it's GDB itself
that set that errno value (in target_read_memory, etc.).
breakpoint.c:insert_bp_location always prints the error val as if an
errno, returned by target_insert_breakpoint, with strerr. Now the
error here is either always EIO for mem-break.c targets (again
hardcoded by the target_read_memory/target_write_memory functions), so
this always prints "Input/output error" or similar (depending on
host), or, for remote targets (and probably others), this gem:
Error accessing memory address 0x80200400: Unknown error -1.
This patch makes these 3 places print the exact same error
memory_error prints. This changes output, but I think this is better,
for making memory error output consistent with other commands, and, it
means we have a central place to tweak for memory errors.
E.g., this changes:
Cannot insert breakpoint 1.
Error accessing memory address 0x5fc660: Input/output error.
to:
Cannot insert breakpoint 1.
Cannot access memory at address 0x5fc660
Which I find pretty much acceptable.
Surprisingly, only py-prettyprint.exp had a regression, for needing an
adjustment. I also grepped the testsuite for the old errors, and
found no other hits.
Now that errno values aren't used anywhere in any of these memory
access related routines, I made memory_error itself take a
target_xfer_error instead of an errno. The new
target_xfer_memory_error function added recently is no longer
necessary, and is thus removed.
Tested on x86_64 Fedora 17, native and gdbserver.
gdb/
2013-10-09 Pedro Alves <palves@redhat.com>
* breakpoint.c (insert_bp_location): Use memory_error_message to
build the memory error string.
* c-lang.c: Include "gdbcore.h".
(c_get_string): Use memory_error to throw error.
(target_xfer_memory_error): Delete.
(memory_error_message): New, factored out from
target_xfer_memory_error.
(memory_error): Change parameter type to target_xfer_error.
Rewrite.
(read_memory): Use memory_error instead of
target_xfer_memory_error.
* gdbcore.h: Include "target.h".
(memory_error): Change parameter type to target_xfer_error.
(memory_error_message): Declare function.
* target.c (target_read_memory, target_read_stack)
(target_write_memory, target_write_raw_memory): Return
TARGET_XFER_E_IO on error. Adjust comments.
(get_target_memory): Pass TARGET_XFER_E_IO to memory_error,
instead of EIO.
* target.h (target_read, target_insert_breakpoint)
(target_remove_breakpoint): Adjust comments.
* valprint.c (partial_memory_read): Rename parameter, and adjust
comment.
(val_print_string): Use memory_error_message to build the memory
error string.
gdb/testsuite/
2013-10-09 Pedro Alves <palves@redhat.com>
* gdb.python/py-prettyprint.exp (run_lang_tests): Adjust expected
output.
2013-10-09 19:00:00 +02:00
|
|
|
|
return TARGET_XFER_E_IO;
|
2009-08-31 22:18:46 +02:00
|
|
|
|
}
|
|
|
|
|
|
2013-11-01 05:26:10 +01:00
|
|
|
|
/* Like target_read_memory, but specify explicitly that this is a read from
|
|
|
|
|
the target's code. This may trigger different cache behavior. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len)
|
|
|
|
|
{
|
2013-12-02 11:12:24 +01:00
|
|
|
|
/* See comment in target_read_memory about why the request starts at
|
|
|
|
|
current_target.beneath. */
|
2013-11-01 05:26:10 +01:00
|
|
|
|
if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL,
|
|
|
|
|
myaddr, memaddr, len) == len)
|
|
|
|
|
return 0;
|
|
|
|
|
else
|
|
|
|
|
return TARGET_XFER_E_IO;
|
|
|
|
|
}
|
|
|
|
|
|
2009-11-14 00:26:19 +01:00
|
|
|
|
/* Write LEN bytes from MYADDR to target memory at address MEMADDR.
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
Returns either 0 for success or TARGET_XFER_E_IO if any
|
Stop using errno values around target_xfer interfaces and memory errors.
target_read_memory & friends build on top of target_read (thus on top
of the target_xfer machinery), but turn all errors to EIO, an errno
value. I think we'd better convert all these to return a
target_xfer_error too, like target_xfer_partial in a previous patch.
The patch starts by doing that.
(The patch does not add a enum target_xfer_error value for '0'/no
error, and likewise does not change the return type of several of
these functions to enum target_xfer_error, because different functions
return '0' with different semantics.)
I audited the tree for memory_error calls, EIO checks, places where
GDB hardcodes 'errno = EIO', and also for strerror calls. What I
found is that nowadays there's really no need to handle random errno
values, other than the EIOs gdb itself hardcodes. No doubt errno
values would appear in common code back in the day when
target_xfer_memory was the main interface to access memory, but
nowadays, any errno value that deprecated interface could return is
just absorved by default_xfer_partial:
else if (xfered == 0 && errno == 0)
/* "deprecated_xfer_memory" uses 0, cross checked against
ERRNO as one indication of an error. */
return 0;
else
return -1;
There are two places in the code that check for EIO and print "out of
bounds", and defer to strerror for other errors. That's
c-lang.c:c_get_string, and valprint.c.:val_print_string. AFAICT, the
strerror branch can never be reached nowadays, as the only error
possible to get at those points is EIO, given that it's GDB itself
that set that errno value (in target_read_memory, etc.).
breakpoint.c:insert_bp_location always prints the error val as if an
errno, returned by target_insert_breakpoint, with strerr. Now the
error here is either always EIO for mem-break.c targets (again
hardcoded by the target_read_memory/target_write_memory functions), so
this always prints "Input/output error" or similar (depending on
host), or, for remote targets (and probably others), this gem:
Error accessing memory address 0x80200400: Unknown error -1.
This patch makes these 3 places print the exact same error
memory_error prints. This changes output, but I think this is better,
for making memory error output consistent with other commands, and, it
means we have a central place to tweak for memory errors.
E.g., this changes:
Cannot insert breakpoint 1.
Error accessing memory address 0x5fc660: Input/output error.
to:
Cannot insert breakpoint 1.
Cannot access memory at address 0x5fc660
Which I find pretty much acceptable.
Surprisingly, only py-prettyprint.exp had a regression, for needing an
adjustment. I also grepped the testsuite for the old errors, and
found no other hits.
Now that errno values aren't used anywhere in any of these memory
access related routines, I made memory_error itself take a
target_xfer_error instead of an errno. The new
target_xfer_memory_error function added recently is no longer
necessary, and is thus removed.
Tested on x86_64 Fedora 17, native and gdbserver.
gdb/
2013-10-09 Pedro Alves <palves@redhat.com>
* breakpoint.c (insert_bp_location): Use memory_error_message to
build the memory error string.
* c-lang.c: Include "gdbcore.h".
(c_get_string): Use memory_error to throw error.
(target_xfer_memory_error): Delete.
(memory_error_message): New, factored out from
target_xfer_memory_error.
(memory_error): Change parameter type to target_xfer_error.
Rewrite.
(read_memory): Use memory_error instead of
target_xfer_memory_error.
* gdbcore.h: Include "target.h".
(memory_error): Change parameter type to target_xfer_error.
(memory_error_message): Declare function.
* target.c (target_read_memory, target_read_stack)
(target_write_memory, target_write_raw_memory): Return
TARGET_XFER_E_IO on error. Adjust comments.
(get_target_memory): Pass TARGET_XFER_E_IO to memory_error,
instead of EIO.
* target.h (target_read, target_insert_breakpoint)
(target_remove_breakpoint): Adjust comments.
* valprint.c (partial_memory_read): Rename parameter, and adjust
comment.
(val_print_string): Use memory_error_message to build the memory
error string.
gdb/testsuite/
2013-10-09 Pedro Alves <palves@redhat.com>
* gdb.python/py-prettyprint.exp (run_lang_tests): Adjust expected
output.
2013-10-09 19:00:00 +02:00
|
|
|
|
error occurs. If an error occurs, no guarantee is made about how
|
|
|
|
|
much data got written. Callers that can deal with partial writes
|
|
|
|
|
should call target_write. */
|
2009-11-14 00:26:19 +01:00
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
int
|
2012-06-05 23:22:31 +02:00
|
|
|
|
target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2013-12-02 11:12:24 +01:00
|
|
|
|
/* See comment in target_read_memory about why the request starts at
|
|
|
|
|
current_target.beneath. */
|
* target.h (struct target_ops): Make to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
methods instead of variables.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1)
(target_has_registers_1, target_has_execution_1): Declare
functions.
(target_has_all_memory): Rewrite to call target_has_all_memory_1.
(target_has_memory): Rewrite to call target_has_memory_1.
(target_has_stack): Rewrite to call target_has_all_stack_1.
(target_has_registers): Rewrite to call target_has_registers_1.
(target_has_execution): Rewrite to call target_has_execution_1.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Declare.
(target_mark_running, target_mark_exited): Delete declarations.
* target.c (default_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution): New.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1,
target_has_registers_1, target_has_execution_1): New.
(add_target): Default the to_has_all_memory, to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
callbacks to return 0.
(update_current_target): Do not inherit to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers or to_has_execution.
(target_mark_running, target_mark_exited): Delete.
(memory_xfer_partial): Adjust.
(target_read_memory, target_write_memory, target_search_memory):
Dispatch to the the top-most target, not the flattened
current_target.
(target_info): Adjust.
(init_dummy_target): Install return_zero as callback for
to_has_all_memory, to_has_memory, to_has_stack, to_has_registers,
to_has_execution.
(set_maintenance_target_async_permitted): Use have_live_inferiors
instead of target_has_execution.
* target-memory.c (target_write_memory_blocks): Dispatch memory
writes to the the top-most target, not the flattened
current_target.
* breakpoint.c (insert_breakpoints): Don't check for
target_has_execution here.
(update_global_location_list): Check if there are live inferiors
to debug instead of target_has_execution.
* infcmd.c (kill_command, detach_command): Check if there are
inferiors instead of target_has_execution.
* inferior.h (have_live_inferiors): Declare.
* inferior.c (have_live_inferiors): New.
* infrun.c (normal_stop): Don't check for target_has_execution to
finish the thread states.
* thread.c (is_thread_state, is_stopped, is_exited, is_running)
(any_running, is_executing): Remove checks for
target_has_execution.
* top.c (kill_or_detach): Don't try to kill core inferiors.
(quit_target): Don't check for target_has_execution.
* corelow.c (core_has_memory, core_has_stack, core_has_registers):
New.
(init_core_ops): Install core_has_memory, core_has_stack and
core_has_registers.
* exec.c (exec_has_memory): New.
(init_exec_ops): Install exec_has_memory.
* remote.c (remote_add_inferior): Don't call target_mark_running.
(remote_start_remote): Don't call target_mark_exited or call
target_mark_running.
(remote_open_1): Use have_inferiors instead of
target_has_execution. Don't use target_mark_exited.
(init_remote_ops): Install deafult_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution.
* bsd-kvm.c (bsd_kvm_return_one): New.
(bsd_kvm_add_target): Register bsd_kvm_return_one as
to_has_memory, to_has_stack and to_has_registers callbacks.
* remote-m32r-sdi.c (m32r_return_one): New.
(init_m32r_ops): Register it.
* inf-child.c (inf_child_target): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* gnu-nat.c (init_gnu_ops): Likewise.
* go32-nat.c (init_go32_ops): Likewise.
* hpux-thread.c (init_hpux_thread_ops): Likewise.
* monitor.c (init_base_monitor_ops): Likewise.
* nto-procfs.c (init_procfs_ops): Likewise.
* remote-mips.c (_initialize_remote_mips): Likewise.
* windows-nat.c (init_windows_ops): Likewise.
* remote-sim.c (gdbsim_create_inferior): Don't use
target_mark_running or target_mark_exited.
(gdbsim_mourn_inferior): Don't call target_mark_exited.
(init_gdbsim_ops): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* linux-nat.c (linux_nat_xfer_partial): If reading memory, and
there's no inferior selected, defer to a lower stratum.
2009-06-07 18:46:48 +02:00
|
|
|
|
if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL,
|
2006-08-15 20:46:25 +02:00
|
|
|
|
myaddr, memaddr, len) == len)
|
|
|
|
|
return 0;
|
2004-09-30 18:18:57 +02:00
|
|
|
|
else
|
Stop using errno values around target_xfer interfaces and memory errors.
target_read_memory & friends build on top of target_read (thus on top
of the target_xfer machinery), but turn all errors to EIO, an errno
value. I think we'd better convert all these to return a
target_xfer_error too, like target_xfer_partial in a previous patch.
The patch starts by doing that.
(The patch does not add a enum target_xfer_error value for '0'/no
error, and likewise does not change the return type of several of
these functions to enum target_xfer_error, because different functions
return '0' with different semantics.)
I audited the tree for memory_error calls, EIO checks, places where
GDB hardcodes 'errno = EIO', and also for strerror calls. What I
found is that nowadays there's really no need to handle random errno
values, other than the EIOs gdb itself hardcodes. No doubt errno
values would appear in common code back in the day when
target_xfer_memory was the main interface to access memory, but
nowadays, any errno value that deprecated interface could return is
just absorved by default_xfer_partial:
else if (xfered == 0 && errno == 0)
/* "deprecated_xfer_memory" uses 0, cross checked against
ERRNO as one indication of an error. */
return 0;
else
return -1;
There are two places in the code that check for EIO and print "out of
bounds", and defer to strerror for other errors. That's
c-lang.c:c_get_string, and valprint.c.:val_print_string. AFAICT, the
strerror branch can never be reached nowadays, as the only error
possible to get at those points is EIO, given that it's GDB itself
that set that errno value (in target_read_memory, etc.).
breakpoint.c:insert_bp_location always prints the error val as if an
errno, returned by target_insert_breakpoint, with strerr. Now the
error here is either always EIO for mem-break.c targets (again
hardcoded by the target_read_memory/target_write_memory functions), so
this always prints "Input/output error" or similar (depending on
host), or, for remote targets (and probably others), this gem:
Error accessing memory address 0x80200400: Unknown error -1.
This patch makes these 3 places print the exact same error
memory_error prints. This changes output, but I think this is better,
for making memory error output consistent with other commands, and, it
means we have a central place to tweak for memory errors.
E.g., this changes:
Cannot insert breakpoint 1.
Error accessing memory address 0x5fc660: Input/output error.
to:
Cannot insert breakpoint 1.
Cannot access memory at address 0x5fc660
Which I find pretty much acceptable.
Surprisingly, only py-prettyprint.exp had a regression, for needing an
adjustment. I also grepped the testsuite for the old errors, and
found no other hits.
Now that errno values aren't used anywhere in any of these memory
access related routines, I made memory_error itself take a
target_xfer_error instead of an errno. The new
target_xfer_memory_error function added recently is no longer
necessary, and is thus removed.
Tested on x86_64 Fedora 17, native and gdbserver.
gdb/
2013-10-09 Pedro Alves <palves@redhat.com>
* breakpoint.c (insert_bp_location): Use memory_error_message to
build the memory error string.
* c-lang.c: Include "gdbcore.h".
(c_get_string): Use memory_error to throw error.
(target_xfer_memory_error): Delete.
(memory_error_message): New, factored out from
target_xfer_memory_error.
(memory_error): Change parameter type to target_xfer_error.
Rewrite.
(read_memory): Use memory_error instead of
target_xfer_memory_error.
* gdbcore.h: Include "target.h".
(memory_error): Change parameter type to target_xfer_error.
(memory_error_message): Declare function.
* target.c (target_read_memory, target_read_stack)
(target_write_memory, target_write_raw_memory): Return
TARGET_XFER_E_IO on error. Adjust comments.
(get_target_memory): Pass TARGET_XFER_E_IO to memory_error,
instead of EIO.
* target.h (target_read, target_insert_breakpoint)
(target_remove_breakpoint): Adjust comments.
* valprint.c (partial_memory_read): Rename parameter, and adjust
comment.
(val_print_string): Use memory_error_message to build the memory
error string.
gdb/testsuite/
2013-10-09 Pedro Alves <palves@redhat.com>
* gdb.python/py-prettyprint.exp (run_lang_tests): Adjust expected
output.
2013-10-09 19:00:00 +02:00
|
|
|
|
return TARGET_XFER_E_IO;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
1999-07-07 22:19:36 +02:00
|
|
|
|
|
2011-12-06 21:03:14 +01:00
|
|
|
|
/* Write LEN bytes from MYADDR to target raw memory at address
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO
|
Stop using errno values around target_xfer interfaces and memory errors.
target_read_memory & friends build on top of target_read (thus on top
of the target_xfer machinery), but turn all errors to EIO, an errno
value. I think we'd better convert all these to return a
target_xfer_error too, like target_xfer_partial in a previous patch.
The patch starts by doing that.
(The patch does not add a enum target_xfer_error value for '0'/no
error, and likewise does not change the return type of several of
these functions to enum target_xfer_error, because different functions
return '0' with different semantics.)
I audited the tree for memory_error calls, EIO checks, places where
GDB hardcodes 'errno = EIO', and also for strerror calls. What I
found is that nowadays there's really no need to handle random errno
values, other than the EIOs gdb itself hardcodes. No doubt errno
values would appear in common code back in the day when
target_xfer_memory was the main interface to access memory, but
nowadays, any errno value that deprecated interface could return is
just absorved by default_xfer_partial:
else if (xfered == 0 && errno == 0)
/* "deprecated_xfer_memory" uses 0, cross checked against
ERRNO as one indication of an error. */
return 0;
else
return -1;
There are two places in the code that check for EIO and print "out of
bounds", and defer to strerror for other errors. That's
c-lang.c:c_get_string, and valprint.c.:val_print_string. AFAICT, the
strerror branch can never be reached nowadays, as the only error
possible to get at those points is EIO, given that it's GDB itself
that set that errno value (in target_read_memory, etc.).
breakpoint.c:insert_bp_location always prints the error val as if an
errno, returned by target_insert_breakpoint, with strerr. Now the
error here is either always EIO for mem-break.c targets (again
hardcoded by the target_read_memory/target_write_memory functions), so
this always prints "Input/output error" or similar (depending on
host), or, for remote targets (and probably others), this gem:
Error accessing memory address 0x80200400: Unknown error -1.
This patch makes these 3 places print the exact same error
memory_error prints. This changes output, but I think this is better,
for making memory error output consistent with other commands, and, it
means we have a central place to tweak for memory errors.
E.g., this changes:
Cannot insert breakpoint 1.
Error accessing memory address 0x5fc660: Input/output error.
to:
Cannot insert breakpoint 1.
Cannot access memory at address 0x5fc660
Which I find pretty much acceptable.
Surprisingly, only py-prettyprint.exp had a regression, for needing an
adjustment. I also grepped the testsuite for the old errors, and
found no other hits.
Now that errno values aren't used anywhere in any of these memory
access related routines, I made memory_error itself take a
target_xfer_error instead of an errno. The new
target_xfer_memory_error function added recently is no longer
necessary, and is thus removed.
Tested on x86_64 Fedora 17, native and gdbserver.
gdb/
2013-10-09 Pedro Alves <palves@redhat.com>
* breakpoint.c (insert_bp_location): Use memory_error_message to
build the memory error string.
* c-lang.c: Include "gdbcore.h".
(c_get_string): Use memory_error to throw error.
(target_xfer_memory_error): Delete.
(memory_error_message): New, factored out from
target_xfer_memory_error.
(memory_error): Change parameter type to target_xfer_error.
Rewrite.
(read_memory): Use memory_error instead of
target_xfer_memory_error.
* gdbcore.h: Include "target.h".
(memory_error): Change parameter type to target_xfer_error.
(memory_error_message): Declare function.
* target.c (target_read_memory, target_read_stack)
(target_write_memory, target_write_raw_memory): Return
TARGET_XFER_E_IO on error. Adjust comments.
(get_target_memory): Pass TARGET_XFER_E_IO to memory_error,
instead of EIO.
* target.h (target_read, target_insert_breakpoint)
(target_remove_breakpoint): Adjust comments.
* valprint.c (partial_memory_read): Rename parameter, and adjust
comment.
(val_print_string): Use memory_error_message to build the memory
error string.
gdb/testsuite/
2013-10-09 Pedro Alves <palves@redhat.com>
* gdb.python/py-prettyprint.exp (run_lang_tests): Adjust expected
output.
2013-10-09 19:00:00 +02:00
|
|
|
|
if any error occurs. If an error occurs, no guarantee is made
|
|
|
|
|
about how much data got written. Callers that can deal with
|
|
|
|
|
partial writes should call target_write. */
|
2011-12-06 21:03:14 +01:00
|
|
|
|
|
|
|
|
|
int
|
2012-06-05 23:22:31 +02:00
|
|
|
|
target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len)
|
2011-12-06 21:03:14 +01:00
|
|
|
|
{
|
2013-12-02 11:12:24 +01:00
|
|
|
|
/* See comment in target_read_memory about why the request starts at
|
|
|
|
|
current_target.beneath. */
|
2011-12-06 21:03:14 +01:00
|
|
|
|
if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL,
|
|
|
|
|
myaddr, memaddr, len) == len)
|
|
|
|
|
return 0;
|
|
|
|
|
else
|
Stop using errno values around target_xfer interfaces and memory errors.
target_read_memory & friends build on top of target_read (thus on top
of the target_xfer machinery), but turn all errors to EIO, an errno
value. I think we'd better convert all these to return a
target_xfer_error too, like target_xfer_partial in a previous patch.
The patch starts by doing that.
(The patch does not add a enum target_xfer_error value for '0'/no
error, and likewise does not change the return type of several of
these functions to enum target_xfer_error, because different functions
return '0' with different semantics.)
I audited the tree for memory_error calls, EIO checks, places where
GDB hardcodes 'errno = EIO', and also for strerror calls. What I
found is that nowadays there's really no need to handle random errno
values, other than the EIOs gdb itself hardcodes. No doubt errno
values would appear in common code back in the day when
target_xfer_memory was the main interface to access memory, but
nowadays, any errno value that deprecated interface could return is
just absorved by default_xfer_partial:
else if (xfered == 0 && errno == 0)
/* "deprecated_xfer_memory" uses 0, cross checked against
ERRNO as one indication of an error. */
return 0;
else
return -1;
There are two places in the code that check for EIO and print "out of
bounds", and defer to strerror for other errors. That's
c-lang.c:c_get_string, and valprint.c.:val_print_string. AFAICT, the
strerror branch can never be reached nowadays, as the only error
possible to get at those points is EIO, given that it's GDB itself
that set that errno value (in target_read_memory, etc.).
breakpoint.c:insert_bp_location always prints the error val as if an
errno, returned by target_insert_breakpoint, with strerr. Now the
error here is either always EIO for mem-break.c targets (again
hardcoded by the target_read_memory/target_write_memory functions), so
this always prints "Input/output error" or similar (depending on
host), or, for remote targets (and probably others), this gem:
Error accessing memory address 0x80200400: Unknown error -1.
This patch makes these 3 places print the exact same error
memory_error prints. This changes output, but I think this is better,
for making memory error output consistent with other commands, and, it
means we have a central place to tweak for memory errors.
E.g., this changes:
Cannot insert breakpoint 1.
Error accessing memory address 0x5fc660: Input/output error.
to:
Cannot insert breakpoint 1.
Cannot access memory at address 0x5fc660
Which I find pretty much acceptable.
Surprisingly, only py-prettyprint.exp had a regression, for needing an
adjustment. I also grepped the testsuite for the old errors, and
found no other hits.
Now that errno values aren't used anywhere in any of these memory
access related routines, I made memory_error itself take a
target_xfer_error instead of an errno. The new
target_xfer_memory_error function added recently is no longer
necessary, and is thus removed.
Tested on x86_64 Fedora 17, native and gdbserver.
gdb/
2013-10-09 Pedro Alves <palves@redhat.com>
* breakpoint.c (insert_bp_location): Use memory_error_message to
build the memory error string.
* c-lang.c: Include "gdbcore.h".
(c_get_string): Use memory_error to throw error.
(target_xfer_memory_error): Delete.
(memory_error_message): New, factored out from
target_xfer_memory_error.
(memory_error): Change parameter type to target_xfer_error.
Rewrite.
(read_memory): Use memory_error instead of
target_xfer_memory_error.
* gdbcore.h: Include "target.h".
(memory_error): Change parameter type to target_xfer_error.
(memory_error_message): Declare function.
* target.c (target_read_memory, target_read_stack)
(target_write_memory, target_write_raw_memory): Return
TARGET_XFER_E_IO on error. Adjust comments.
(get_target_memory): Pass TARGET_XFER_E_IO to memory_error,
instead of EIO.
* target.h (target_read, target_insert_breakpoint)
(target_remove_breakpoint): Adjust comments.
* valprint.c (partial_memory_read): Rename parameter, and adjust
comment.
(val_print_string): Use memory_error_message to build the memory
error string.
gdb/testsuite/
2013-10-09 Pedro Alves <palves@redhat.com>
* gdb.python/py-prettyprint.exp (run_lang_tests): Adjust expected
output.
2013-10-09 19:00:00 +02:00
|
|
|
|
return TARGET_XFER_E_IO;
|
2011-12-06 21:03:14 +01:00
|
|
|
|
}
|
|
|
|
|
|
gdb/
2006-09-21 Vladimir Prus <vladimir@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
Nathan Sidwell <nathan@codesourcery.com>
* Makefile.in (SFILES): Add memory-map.c and xml-support.c.
(memory_map_h, xml_support_h): New.
(target_h): Add vec_h dependency.
(COMMON_OBS): Add memory-map.o and xml-support.o.
(memory-map.o, xml-support.o): New rules.
(remote.o): Update.
* exceptions.h (enum errors): Add XML_PARSE_ERROR.
* infcmd.c (run_command_1, attach_command): Call target_pre_inferior.
* memattr.c (default_mem_attrib): Initialize blocksize.
(target_mem_region_list, mem_use_target)
(target_mem_regions_valid, mem_region_cmp, mem_region_init)
(require_user_regions, require_target_regions)
(invalidate_target_mem_regions): New.
(create_mem_region): Use mem_region_init.
(mem_clear): Move higher.
(lookup_mem_region): Use require_target_regions.
(mem_command): Implement "mem auto".
(mem_info_command): Handle target-supplied regions and flash
attributes.
(mem_enable_command, mem_disable_command, mem_delete_command): Use
require_user_regions.
(_initialize_mem): Mention "mem auto" in help.
* memattr.h (enum mem_access_mode): Add MEM_FLASH.
(struct mem_attrib): Add blocksize.
(invalidate_target_mem_regions, mem_region_init, mem_region_cmp): New
prototypes.
* remote.c: Include "memory-map.h".
(PACKET_qXfer_memory_map): New enum value.
(remote_protocol_features): Add qXfer:memory-map:read.
(remote_xfer_partial): Handle memory maps.
(remote_memory_map): New.
(init_remote_ops, init_remote_async_ops): Set to_memory_map.
(_initialize_remote): Register qXfer:memory-map:read.
* target.c (update_current_target): Mention to_memory_map.
(target_memory_map, target_pre_inferior): New.
(target_preopen): Call target_pre_inferior.
* target.h: Include "vec.h".
(enum target_object): Add TARGET_OBJECT_MEMORY_MAP.
(struct target_ops): Add to_memory_map.
(target_memory_map, target_pre_inferior): New prototypes.
* memory-map.c, memory-map.h, xml-support.c, xml-support.h: New files.
gdb/doc/
2006-09-21 Vladimir Prus <vladimir@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* gdb.texinfo (Memory Region Attributes): Mention target-supplied
memory regions and "mem auto".
2006-09-21 15:54:03 +02:00
|
|
|
|
/* Fetch the target's memory map. */
|
|
|
|
|
|
|
|
|
|
VEC(mem_region_s) *
|
|
|
|
|
target_memory_map (void)
|
|
|
|
|
{
|
|
|
|
|
VEC(mem_region_s) *result;
|
|
|
|
|
struct mem_region *last_one, *this_one;
|
|
|
|
|
int ix;
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
2013-12-19 15:47:11 +01:00
|
|
|
|
result = current_target.to_memory_map (¤t_target);
|
gdb/
2006-09-21 Vladimir Prus <vladimir@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
Nathan Sidwell <nathan@codesourcery.com>
* Makefile.in (SFILES): Add memory-map.c and xml-support.c.
(memory_map_h, xml_support_h): New.
(target_h): Add vec_h dependency.
(COMMON_OBS): Add memory-map.o and xml-support.o.
(memory-map.o, xml-support.o): New rules.
(remote.o): Update.
* exceptions.h (enum errors): Add XML_PARSE_ERROR.
* infcmd.c (run_command_1, attach_command): Call target_pre_inferior.
* memattr.c (default_mem_attrib): Initialize blocksize.
(target_mem_region_list, mem_use_target)
(target_mem_regions_valid, mem_region_cmp, mem_region_init)
(require_user_regions, require_target_regions)
(invalidate_target_mem_regions): New.
(create_mem_region): Use mem_region_init.
(mem_clear): Move higher.
(lookup_mem_region): Use require_target_regions.
(mem_command): Implement "mem auto".
(mem_info_command): Handle target-supplied regions and flash
attributes.
(mem_enable_command, mem_disable_command, mem_delete_command): Use
require_user_regions.
(_initialize_mem): Mention "mem auto" in help.
* memattr.h (enum mem_access_mode): Add MEM_FLASH.
(struct mem_attrib): Add blocksize.
(invalidate_target_mem_regions, mem_region_init, mem_region_cmp): New
prototypes.
* remote.c: Include "memory-map.h".
(PACKET_qXfer_memory_map): New enum value.
(remote_protocol_features): Add qXfer:memory-map:read.
(remote_xfer_partial): Handle memory maps.
(remote_memory_map): New.
(init_remote_ops, init_remote_async_ops): Set to_memory_map.
(_initialize_remote): Register qXfer:memory-map:read.
* target.c (update_current_target): Mention to_memory_map.
(target_memory_map, target_pre_inferior): New.
(target_preopen): Call target_pre_inferior.
* target.h: Include "vec.h".
(enum target_object): Add TARGET_OBJECT_MEMORY_MAP.
(struct target_ops): Add to_memory_map.
(target_memory_map, target_pre_inferior): New prototypes.
* memory-map.c, memory-map.h, xml-support.c, xml-support.h: New files.
gdb/doc/
2006-09-21 Vladimir Prus <vladimir@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* gdb.texinfo (Memory Region Attributes): Mention target-supplied
memory regions and "mem auto".
2006-09-21 15:54:03 +02:00
|
|
|
|
if (result == NULL)
|
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
|
|
qsort (VEC_address (mem_region_s, result),
|
|
|
|
|
VEC_length (mem_region_s, result),
|
|
|
|
|
sizeof (struct mem_region), mem_region_cmp);
|
|
|
|
|
|
|
|
|
|
/* Check that regions do not overlap. Simultaneously assign
|
|
|
|
|
a numbering for the "mem" commands to use to refer to
|
|
|
|
|
each region. */
|
|
|
|
|
last_one = NULL;
|
|
|
|
|
for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++)
|
|
|
|
|
{
|
|
|
|
|
this_one->number = ix;
|
|
|
|
|
|
|
|
|
|
if (last_one && last_one->hi > this_one->lo)
|
|
|
|
|
{
|
|
|
|
|
warning (_("Overlapping regions in memory map: ignoring"));
|
|
|
|
|
VEC_free (mem_region_s, result);
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
|
|
|
|
last_one = this_one;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
* Makefile.in (SFILES): Add target-memory.c.
(COMMON_OBS): Add target-memory.o.
* memattr.c (lookup_mem_region): Adjust handling for
the top of memory. Improve comments.
* remote.c (packet_check_result): New function, split out
from packet_ok. Recognize "E." as an error prefix.
(packet_ok): Use it.
(remote_write_bytes_aux): New function, renamed from
remote_write_bytes. Take packet header, packet format,
and length flag as arguments.
(remote_write_bytes): Rewrite to use remote_write_bytes_aux.
(remote_send_printf, restore_remote_timeout)
(remote_flash_timeout, remote_flash_erase, remote_flash_write)
(remote_flash_done): New.
(remote_xfer_partial): Handle flash writes.
(init_remote_ops, init_remote_async_ops): Set to_flash_erase
and to_flash_done.
* symfile.c (struct load_section_data): Include a pointer to
the cumulative stats and a request queue. Move most members
to other types.
(struct load_progress_data, struct load_progress_section_data): New
types.
(load_progress): Handle a NULL baton and zero bytes. Update for
type changes.
(load_section_callback): Create memory write requests instead of
writing to memory. Don't print the progress message here.
(clear_memory_write_data): New function.
(generic_load): Use target_write_memory_blocks.
* target-memory.c: New file.
* target.c (update_current_target): Mention new uninherited methods.
(memory_xfer_partial): Issue an error for flash writes.
(target_flash_erase, target_flash_done): New functions.
(target_write_with_progress): Call the progress callback at the
start also.
* target.h (enum target_object): Add TARGET_OBJECT_FLASH.
(target_write_with_progress): Update comment.
(struct target_ops): Add to_flash_erase and to_flash_done.
(target_flash_erase, target_flash_done, struct memory_write_request)
(memory_write_request_s, enum flash_preserve_mode)
(target_write_memory_blocks): New, including a vector type
for memory_write_request_s.
2006-09-21 16:00:53 +02:00
|
|
|
|
void
|
|
|
|
|
target_flash_erase (ULONGEST address, LONGEST length)
|
|
|
|
|
{
|
2013-12-18 22:50:56 +01:00
|
|
|
|
current_target.to_flash_erase (¤t_target, address, length);
|
* Makefile.in (SFILES): Add target-memory.c.
(COMMON_OBS): Add target-memory.o.
* memattr.c (lookup_mem_region): Adjust handling for
the top of memory. Improve comments.
* remote.c (packet_check_result): New function, split out
from packet_ok. Recognize "E." as an error prefix.
(packet_ok): Use it.
(remote_write_bytes_aux): New function, renamed from
remote_write_bytes. Take packet header, packet format,
and length flag as arguments.
(remote_write_bytes): Rewrite to use remote_write_bytes_aux.
(remote_send_printf, restore_remote_timeout)
(remote_flash_timeout, remote_flash_erase, remote_flash_write)
(remote_flash_done): New.
(remote_xfer_partial): Handle flash writes.
(init_remote_ops, init_remote_async_ops): Set to_flash_erase
and to_flash_done.
* symfile.c (struct load_section_data): Include a pointer to
the cumulative stats and a request queue. Move most members
to other types.
(struct load_progress_data, struct load_progress_section_data): New
types.
(load_progress): Handle a NULL baton and zero bytes. Update for
type changes.
(load_section_callback): Create memory write requests instead of
writing to memory. Don't print the progress message here.
(clear_memory_write_data): New function.
(generic_load): Use target_write_memory_blocks.
* target-memory.c: New file.
* target.c (update_current_target): Mention new uninherited methods.
(memory_xfer_partial): Issue an error for flash writes.
(target_flash_erase, target_flash_done): New functions.
(target_write_with_progress): Call the progress callback at the
start also.
* target.h (enum target_object): Add TARGET_OBJECT_FLASH.
(target_write_with_progress): Update comment.
(struct target_ops): Add to_flash_erase and to_flash_done.
(target_flash_erase, target_flash_done, struct memory_write_request)
(memory_write_request_s, enum flash_preserve_mode)
(target_write_memory_blocks): New, including a vector type
for memory_write_request_s.
2006-09-21 16:00:53 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_flash_done (void)
|
|
|
|
|
{
|
2013-12-18 22:52:02 +01:00
|
|
|
|
current_target.to_flash_done (¤t_target);
|
* Makefile.in (SFILES): Add target-memory.c.
(COMMON_OBS): Add target-memory.o.
* memattr.c (lookup_mem_region): Adjust handling for
the top of memory. Improve comments.
* remote.c (packet_check_result): New function, split out
from packet_ok. Recognize "E." as an error prefix.
(packet_ok): Use it.
(remote_write_bytes_aux): New function, renamed from
remote_write_bytes. Take packet header, packet format,
and length flag as arguments.
(remote_write_bytes): Rewrite to use remote_write_bytes_aux.
(remote_send_printf, restore_remote_timeout)
(remote_flash_timeout, remote_flash_erase, remote_flash_write)
(remote_flash_done): New.
(remote_xfer_partial): Handle flash writes.
(init_remote_ops, init_remote_async_ops): Set to_flash_erase
and to_flash_done.
* symfile.c (struct load_section_data): Include a pointer to
the cumulative stats and a request queue. Move most members
to other types.
(struct load_progress_data, struct load_progress_section_data): New
types.
(load_progress): Handle a NULL baton and zero bytes. Update for
type changes.
(load_section_callback): Create memory write requests instead of
writing to memory. Don't print the progress message here.
(clear_memory_write_data): New function.
(generic_load): Use target_write_memory_blocks.
* target-memory.c: New file.
* target.c (update_current_target): Mention new uninherited methods.
(memory_xfer_partial): Issue an error for flash writes.
(target_flash_erase, target_flash_done): New functions.
(target_write_with_progress): Call the progress callback at the
start also.
* target.h (enum target_object): Add TARGET_OBJECT_FLASH.
(target_write_with_progress): Update comment.
(struct target_ops): Add to_flash_erase and to_flash_done.
(target_flash_erase, target_flash_done, struct memory_write_request)
(memory_write_request_s, enum flash_preserve_mode)
(target_write_memory_blocks): New, including a vector type
for memory_write_request_s.
2006-09-21 16:00:53 +02:00
|
|
|
|
}
|
|
|
|
|
|
2005-02-24 Andrew Cagney <cagney@gnu.org>
Add show_VARIABLE functions, update add_setshow call.
* varobj.c (_initialize_varobj, show_varobjdebug): Add and update.
* valprint.c (_initialize_valprint, show_print_max)
(show_stop_print_at_null, show_repeat_count_threshold)
(show_prettyprint_structs, show_unionprint)
(show_prettyprint_arrays, show_addressprint, show_input_radix)
(show_output_radix): Ditto.
* valops.c (_initialize_valops, show_overload_resolution): Ditto.
* utils.c (initialize_utils, show_chars_per_line)
(show_lines_per_page, show_demangle, show_pagination_enabled)
(show_sevenbit_strings, show_asm_demangle): Ditto
* tui/tui-win.c (_initialize_tui_win, show_tui_border_kind)
(show_tui_border_mode, show_tui_active_border_mode): Ditto.
* top.c (init_main, show_new_async_prompt)
(show_async_command_editing_p, show_write_history_p)
(show_history_size, show_history_filename, show_caution)
(show_annotation_level, init_main): Ditto.
* target.c (initialize_targets, show_targetdebug)
(show_trust_readonly): Ditto.
* symfile.c (_initialize_symfile, show_symbol_reloading)
(show_ext_args, show_download_write_size)
(show_debug_file_directory): Ditto.
* source.c (_initialize_source, show_lines_to_list): Ditto.
* solib.c (_initialize_solib, show_auto_solib_add)
(show_solib_search_path): Ditto.
* p-valprint.c (_initialize_pascal_valprint)
(show_pascal_static_field_print): Ditto.
* printcmd.c (_initialize_printcmd, show_max_symbolic_offset)
(show_print_symbol_filename): Add and update.
* parse.c (_initialize_parse, show_expressiondebug): Dito.
* observer.c (_initialize_observer, show_observer_debug): Dito.
* maint.c (_initialize_maint_cmds, show_watchdog)
(show_maintenance_profile_p): Dito.
* linux-nat.c (_initialize_linux_nat, show_debug_linux_nat): Dito.
* infrun.c (_initialize_infrun, show_debug_infrun)
(show_stop_on_solib_events, show_follow_fork_mode_string)
(show_scheduler_mode, show_step_stop_if_no_debug): Ditto.
* infcall.c (_initialize_infcall, show_coerce_float_to_double_p)
(show_unwind_on_signal_p): Ditto.
* gdbtypes.c (build_gdbtypes, show_opaque_type_resolution)
(_initialize_gdbtypes, show_overload_debug): Ditto.
* gdb-events.c, gdb-events.sh (_initialize_gdb_events)
(show_gdb_events_debug): Ditto.
* gdbarch.c, gdbarch.sh (show_gdbarch_debug)
(_initialize_gdbarch): Ditto.
* frame.c (_initialize_frame, show_backtrace_past_main)
(show_backtrace_past_entry, show_backtrace_limit)
(show_frame_debug): Ditto.
* exec.c (_initialize_exec, show_write_files): Ditto.
* dwarf2read.c (_initialize_dwarf2_read)
(show_dwarf2_max_cache_age): Ditto.
* demangle.c (_initialize_demangler)
(show_demangling_style_names): Ditto.
* dcache.c (_initialize_dcache, show_dcache_enabled_p): Ditto.
* cp-valprint.c (show_static_field_print)
(_initialize_cp_valprint, show_vtblprint, show_objectprint): Ditto.
* corefile.c (_initialize_core, show_gnutarget_string): Ditto.
* cli/cli-logging.c (_initialize_cli_logging)
(show_logging_overwrite, show_logging_redirect)
(show_logging_filename): Ditto.
* cli/cli-cmds.c (show_info_verbose, show_history_expansion_p)
(init_cli_cmds, show_baud_rate, show_remote_debug)
(show_remote_timeout, show_max_user_call_depth): Ditto.
* charset.c (show_host_charset_name, show_target_charset_name)
(initialize_charset): Ditto.
* breakpoint.c (show_can_use_hw_watchpoints)
(show_pending_break_support, _initialize_breakpoint): Ditto.
2005-02-24 14:51:36 +01:00
|
|
|
|
static void
|
|
|
|
|
show_trust_readonly (struct ui_file *file, int from_tty,
|
|
|
|
|
struct cmd_list_element *c, const char *value)
|
|
|
|
|
{
|
2011-01-05 23:22:53 +01:00
|
|
|
|
fprintf_filtered (file,
|
|
|
|
|
_("Mode for reading from readonly sections is %s.\n"),
|
2005-02-24 Andrew Cagney <cagney@gnu.org>
Add show_VARIABLE functions, update add_setshow call.
* varobj.c (_initialize_varobj, show_varobjdebug): Add and update.
* valprint.c (_initialize_valprint, show_print_max)
(show_stop_print_at_null, show_repeat_count_threshold)
(show_prettyprint_structs, show_unionprint)
(show_prettyprint_arrays, show_addressprint, show_input_radix)
(show_output_radix): Ditto.
* valops.c (_initialize_valops, show_overload_resolution): Ditto.
* utils.c (initialize_utils, show_chars_per_line)
(show_lines_per_page, show_demangle, show_pagination_enabled)
(show_sevenbit_strings, show_asm_demangle): Ditto
* tui/tui-win.c (_initialize_tui_win, show_tui_border_kind)
(show_tui_border_mode, show_tui_active_border_mode): Ditto.
* top.c (init_main, show_new_async_prompt)
(show_async_command_editing_p, show_write_history_p)
(show_history_size, show_history_filename, show_caution)
(show_annotation_level, init_main): Ditto.
* target.c (initialize_targets, show_targetdebug)
(show_trust_readonly): Ditto.
* symfile.c (_initialize_symfile, show_symbol_reloading)
(show_ext_args, show_download_write_size)
(show_debug_file_directory): Ditto.
* source.c (_initialize_source, show_lines_to_list): Ditto.
* solib.c (_initialize_solib, show_auto_solib_add)
(show_solib_search_path): Ditto.
* p-valprint.c (_initialize_pascal_valprint)
(show_pascal_static_field_print): Ditto.
* printcmd.c (_initialize_printcmd, show_max_symbolic_offset)
(show_print_symbol_filename): Add and update.
* parse.c (_initialize_parse, show_expressiondebug): Dito.
* observer.c (_initialize_observer, show_observer_debug): Dito.
* maint.c (_initialize_maint_cmds, show_watchdog)
(show_maintenance_profile_p): Dito.
* linux-nat.c (_initialize_linux_nat, show_debug_linux_nat): Dito.
* infrun.c (_initialize_infrun, show_debug_infrun)
(show_stop_on_solib_events, show_follow_fork_mode_string)
(show_scheduler_mode, show_step_stop_if_no_debug): Ditto.
* infcall.c (_initialize_infcall, show_coerce_float_to_double_p)
(show_unwind_on_signal_p): Ditto.
* gdbtypes.c (build_gdbtypes, show_opaque_type_resolution)
(_initialize_gdbtypes, show_overload_debug): Ditto.
* gdb-events.c, gdb-events.sh (_initialize_gdb_events)
(show_gdb_events_debug): Ditto.
* gdbarch.c, gdbarch.sh (show_gdbarch_debug)
(_initialize_gdbarch): Ditto.
* frame.c (_initialize_frame, show_backtrace_past_main)
(show_backtrace_past_entry, show_backtrace_limit)
(show_frame_debug): Ditto.
* exec.c (_initialize_exec, show_write_files): Ditto.
* dwarf2read.c (_initialize_dwarf2_read)
(show_dwarf2_max_cache_age): Ditto.
* demangle.c (_initialize_demangler)
(show_demangling_style_names): Ditto.
* dcache.c (_initialize_dcache, show_dcache_enabled_p): Ditto.
* cp-valprint.c (show_static_field_print)
(_initialize_cp_valprint, show_vtblprint, show_objectprint): Ditto.
* corefile.c (_initialize_core, show_gnutarget_string): Ditto.
* cli/cli-logging.c (_initialize_cli_logging)
(show_logging_overwrite, show_logging_redirect)
(show_logging_filename): Ditto.
* cli/cli-cmds.c (show_info_verbose, show_history_expansion_p)
(init_cli_cmds, show_baud_rate, show_remote_debug)
(show_remote_timeout, show_max_user_call_depth): Ditto.
* charset.c (show_host_charset_name, show_target_charset_name)
(initialize_charset): Ditto.
* breakpoint.c (show_can_use_hw_watchpoints)
(show_pending_break_support, _initialize_breakpoint): Ditto.
2005-02-24 14:51:36 +01:00
|
|
|
|
value);
|
|
|
|
|
}
|
2002-01-31 03:31:06 +01:00
|
|
|
|
|
2009-11-14 00:26:19 +01:00
|
|
|
|
/* Target vector read/write partial wrapper functions. */
|
2003-10-23 02:13:53 +02:00
|
|
|
|
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
static enum target_xfer_status
|
2003-10-17 20:24:49 +02:00
|
|
|
|
target_read_partial (struct target_ops *ops,
|
|
|
|
|
enum target_object object,
|
2005-05-16 Andrew Cagney <cagney@gnu.org>
* target.h (target_read_partial, target_write_partial)
(do_xfer_memory, xfer_memory, target_read, target_write)
(get_target_memory): For buffers, change "void*" to gdb_byte.
(struct target_ops): Ditto for to_xfer_partial and
deprecated_xfer_memory.
* dcache.h (dcache_xfer_memory): Ditto.
* target.c (default_xfer_partial, target_read_partial)
(target_write_partial, target_read, target_write)
(do_xfer_memory, update_current_target, get_target_memory): Update.
(target_read_string): Change buf to a gdb_byte.
* dcache.c (dcache_xfer_memory): Update.
* exec.c (xfer_memory): Make buffer type to gdb_byte.
* mem-break.c (default_memory_insert_breakpoint): Remove cast.
* disasm.c (dis_asm_read_memory): Remove cast, use gdb_byte.
2005-05-16 06:45:43 +02:00
|
|
|
|
const char *annex, gdb_byte *buf,
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
ULONGEST offset, ULONGEST len,
|
|
|
|
|
ULONGEST *xfered_len)
|
2003-10-17 20:24:49 +02:00
|
|
|
|
{
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
return target_xfer_partial (ops, object, annex, buf, NULL, offset, len,
|
|
|
|
|
xfered_len);
|
2003-10-17 20:24:49 +02:00
|
|
|
|
}
|
|
|
|
|
|
2014-02-14 23:57:37 +01:00
|
|
|
|
static enum target_xfer_status
|
2003-10-17 20:24:49 +02:00
|
|
|
|
target_write_partial (struct target_ops *ops,
|
|
|
|
|
enum target_object object,
|
2005-05-16 Andrew Cagney <cagney@gnu.org>
* target.h (target_read_partial, target_write_partial)
(do_xfer_memory, xfer_memory, target_read, target_write)
(get_target_memory): For buffers, change "void*" to gdb_byte.
(struct target_ops): Ditto for to_xfer_partial and
deprecated_xfer_memory.
* dcache.h (dcache_xfer_memory): Ditto.
* target.c (default_xfer_partial, target_read_partial)
(target_write_partial, target_read, target_write)
(do_xfer_memory, update_current_target, get_target_memory): Update.
(target_read_string): Change buf to a gdb_byte.
* dcache.c (dcache_xfer_memory): Update.
* exec.c (xfer_memory): Make buffer type to gdb_byte.
* mem-break.c (default_memory_insert_breakpoint): Remove cast.
* disasm.c (dis_asm_read_memory): Remove cast, use gdb_byte.
2005-05-16 06:45:43 +02:00
|
|
|
|
const char *annex, const gdb_byte *buf,
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
ULONGEST offset, LONGEST len, ULONGEST *xfered_len)
|
2003-10-17 20:24:49 +02:00
|
|
|
|
{
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
return target_xfer_partial (ops, object, annex, NULL, buf, offset, len,
|
|
|
|
|
xfered_len);
|
2003-10-17 20:24:49 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Wrappers to perform the full transfer. */
|
2009-11-14 00:26:19 +01:00
|
|
|
|
|
|
|
|
|
/* For docs on target_read see target.h. */
|
|
|
|
|
|
2003-10-17 20:24:49 +02:00
|
|
|
|
LONGEST
|
|
|
|
|
target_read (struct target_ops *ops,
|
|
|
|
|
enum target_object object,
|
2005-05-16 Andrew Cagney <cagney@gnu.org>
* target.h (target_read_partial, target_write_partial)
(do_xfer_memory, xfer_memory, target_read, target_write)
(get_target_memory): For buffers, change "void*" to gdb_byte.
(struct target_ops): Ditto for to_xfer_partial and
deprecated_xfer_memory.
* dcache.h (dcache_xfer_memory): Ditto.
* target.c (default_xfer_partial, target_read_partial)
(target_write_partial, target_read, target_write)
(do_xfer_memory, update_current_target, get_target_memory): Update.
(target_read_string): Change buf to a gdb_byte.
* dcache.c (dcache_xfer_memory): Update.
* exec.c (xfer_memory): Make buffer type to gdb_byte.
* mem-break.c (default_memory_insert_breakpoint): Remove cast.
* disasm.c (dis_asm_read_memory): Remove cast, use gdb_byte.
2005-05-16 06:45:43 +02:00
|
|
|
|
const char *annex, gdb_byte *buf,
|
2003-10-17 20:24:49 +02:00
|
|
|
|
ULONGEST offset, LONGEST len)
|
|
|
|
|
{
|
|
|
|
|
LONGEST xfered = 0;
|
2010-05-17 03:15:20 +02:00
|
|
|
|
|
2003-10-17 20:24:49 +02:00
|
|
|
|
while (xfered < len)
|
|
|
|
|
{
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
ULONGEST xfered_len;
|
|
|
|
|
enum target_xfer_status status;
|
|
|
|
|
|
|
|
|
|
status = target_read_partial (ops, object, annex,
|
|
|
|
|
(gdb_byte *) buf + xfered,
|
|
|
|
|
offset + xfered, len - xfered,
|
|
|
|
|
&xfered_len);
|
2010-05-17 03:15:20 +02:00
|
|
|
|
|
2003-10-17 20:24:49 +02:00
|
|
|
|
/* Call an observer, notifying them of the xfer progress? */
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
if (status == TARGET_XFER_EOF)
|
2006-07-12 20:13:45 +02:00
|
|
|
|
return xfered;
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
else if (status == TARGET_XFER_OK)
|
|
|
|
|
{
|
|
|
|
|
xfered += xfered_len;
|
|
|
|
|
QUIT;
|
|
|
|
|
}
|
|
|
|
|
else
|
2003-10-23 02:13:53 +02:00
|
|
|
|
return -1;
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
|
2003-10-17 20:24:49 +02:00
|
|
|
|
}
|
|
|
|
|
return len;
|
|
|
|
|
}
|
|
|
|
|
|
2011-03-08 05:53:36 +01:00
|
|
|
|
/* Assuming that the entire [begin, end) range of memory cannot be
|
|
|
|
|
read, try to read whatever subrange is possible to read.
|
|
|
|
|
|
|
|
|
|
The function returns, in RESULT, either zero or one memory block.
|
|
|
|
|
If there's a readable subrange at the beginning, it is completely
|
|
|
|
|
read and returned. Any further readable subrange will not be read.
|
|
|
|
|
Otherwise, if there's a readable subrange at the end, it will be
|
|
|
|
|
completely read and returned. Any readable subranges before it
|
|
|
|
|
(obviously, not starting at the beginning), will be ignored. In
|
|
|
|
|
other cases -- either no readable subrange, or readable subrange(s)
|
|
|
|
|
that is neither at the beginning, or end, nothing is returned.
|
|
|
|
|
|
|
|
|
|
The purpose of this function is to handle a read across a boundary
|
|
|
|
|
of accessible memory in a case when memory map is not available.
|
|
|
|
|
The above restrictions are fine for this case, but will give
|
|
|
|
|
incorrect results if the memory is 'patchy'. However, supporting
|
|
|
|
|
'patchy' memory would require trying to read every single byte,
|
|
|
|
|
and it seems unacceptable solution. Explicit memory map is
|
|
|
|
|
recommended for this case -- and target_read_memory_robust will
|
|
|
|
|
take care of reading multiple ranges then. */
|
2010-08-13 15:22:44 +02:00
|
|
|
|
|
|
|
|
|
static void
|
2011-01-05 23:22:53 +01:00
|
|
|
|
read_whatever_is_readable (struct target_ops *ops,
|
|
|
|
|
ULONGEST begin, ULONGEST end,
|
2010-08-13 15:22:44 +02:00
|
|
|
|
VEC(memory_read_result_s) **result)
|
2008-06-26 17:10:48 +02:00
|
|
|
|
{
|
2011-03-08 05:53:36 +01:00
|
|
|
|
gdb_byte *buf = xmalloc (end - begin);
|
2010-08-13 15:22:44 +02:00
|
|
|
|
ULONGEST current_begin = begin;
|
|
|
|
|
ULONGEST current_end = end;
|
|
|
|
|
int forward;
|
|
|
|
|
memory_read_result_s r;
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
ULONGEST xfered_len;
|
2010-08-13 15:22:44 +02:00
|
|
|
|
|
|
|
|
|
/* If we previously failed to read 1 byte, nothing can be done here. */
|
|
|
|
|
if (end - begin <= 1)
|
2011-03-08 19:58:54 +01:00
|
|
|
|
{
|
|
|
|
|
xfree (buf);
|
|
|
|
|
return;
|
|
|
|
|
}
|
2010-08-13 15:22:44 +02:00
|
|
|
|
|
|
|
|
|
/* Check that either first or the last byte is readable, and give up
|
2011-01-11 22:53:25 +01:00
|
|
|
|
if not. This heuristic is meant to permit reading accessible memory
|
2010-08-13 15:22:44 +02:00
|
|
|
|
at the boundary of accessible region. */
|
|
|
|
|
if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL,
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
buf, begin, 1, &xfered_len) == TARGET_XFER_OK)
|
2010-08-13 15:22:44 +02:00
|
|
|
|
{
|
|
|
|
|
forward = 1;
|
|
|
|
|
++current_begin;
|
|
|
|
|
}
|
|
|
|
|
else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL,
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
buf + (end-begin) - 1, end - 1, 1,
|
|
|
|
|
&xfered_len) == TARGET_XFER_OK)
|
2010-08-13 15:22:44 +02:00
|
|
|
|
{
|
|
|
|
|
forward = 0;
|
|
|
|
|
--current_end;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
2011-03-08 19:58:54 +01:00
|
|
|
|
xfree (buf);
|
2010-08-13 15:22:44 +02:00
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Loop invariant is that the [current_begin, current_end) was previously
|
|
|
|
|
found to be not readable as a whole.
|
|
|
|
|
|
|
|
|
|
Note loop condition -- if the range has 1 byte, we can't divide the range
|
|
|
|
|
so there's no point trying further. */
|
|
|
|
|
while (current_end - current_begin > 1)
|
|
|
|
|
{
|
|
|
|
|
ULONGEST first_half_begin, first_half_end;
|
|
|
|
|
ULONGEST second_half_begin, second_half_end;
|
|
|
|
|
LONGEST xfer;
|
|
|
|
|
ULONGEST middle = current_begin + (current_end - current_begin)/2;
|
2011-03-08 05:53:36 +01:00
|
|
|
|
|
2010-08-13 15:22:44 +02:00
|
|
|
|
if (forward)
|
|
|
|
|
{
|
|
|
|
|
first_half_begin = current_begin;
|
|
|
|
|
first_half_end = middle;
|
|
|
|
|
second_half_begin = middle;
|
|
|
|
|
second_half_end = current_end;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
first_half_begin = middle;
|
|
|
|
|
first_half_end = current_end;
|
|
|
|
|
second_half_begin = current_begin;
|
|
|
|
|
second_half_end = middle;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL,
|
|
|
|
|
buf + (first_half_begin - begin),
|
|
|
|
|
first_half_begin,
|
|
|
|
|
first_half_end - first_half_begin);
|
|
|
|
|
|
|
|
|
|
if (xfer == first_half_end - first_half_begin)
|
|
|
|
|
{
|
2011-01-11 22:53:25 +01:00
|
|
|
|
/* This half reads up fine. So, the error must be in the
|
2011-01-05 23:22:53 +01:00
|
|
|
|
other half. */
|
2010-08-13 15:22:44 +02:00
|
|
|
|
current_begin = second_half_begin;
|
|
|
|
|
current_end = second_half_end;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
2011-01-11 22:53:25 +01:00
|
|
|
|
/* This half is not readable. Because we've tried one byte, we
|
|
|
|
|
know some part of this half if actually redable. Go to the next
|
2010-08-13 15:22:44 +02:00
|
|
|
|
iteration to divide again and try to read.
|
|
|
|
|
|
|
|
|
|
We don't handle the other half, because this function only tries
|
|
|
|
|
to read a single readable subrange. */
|
|
|
|
|
current_begin = first_half_begin;
|
|
|
|
|
current_end = first_half_end;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (forward)
|
|
|
|
|
{
|
|
|
|
|
/* The [begin, current_begin) range has been read. */
|
|
|
|
|
r.begin = begin;
|
|
|
|
|
r.end = current_begin;
|
|
|
|
|
r.data = buf;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* The [current_end, end) range has been read. */
|
|
|
|
|
LONGEST rlen = end - current_end;
|
2011-03-08 05:53:36 +01:00
|
|
|
|
|
2010-08-13 15:22:44 +02:00
|
|
|
|
r.data = xmalloc (rlen);
|
|
|
|
|
memcpy (r.data, buf + current_end - begin, rlen);
|
|
|
|
|
r.begin = current_end;
|
|
|
|
|
r.end = end;
|
|
|
|
|
xfree (buf);
|
|
|
|
|
}
|
|
|
|
|
VEC_safe_push(memory_read_result_s, (*result), &r);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
free_memory_read_result_vector (void *x)
|
|
|
|
|
{
|
|
|
|
|
VEC(memory_read_result_s) *v = x;
|
|
|
|
|
memory_read_result_s *current;
|
|
|
|
|
int ix;
|
|
|
|
|
|
|
|
|
|
for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix)
|
|
|
|
|
{
|
|
|
|
|
xfree (current->data);
|
|
|
|
|
}
|
|
|
|
|
VEC_free (memory_read_result_s, v);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
VEC(memory_read_result_s) *
|
|
|
|
|
read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len)
|
|
|
|
|
{
|
|
|
|
|
VEC(memory_read_result_s) *result = 0;
|
|
|
|
|
|
|
|
|
|
LONGEST xfered = 0;
|
2008-06-26 17:10:48 +02:00
|
|
|
|
while (xfered < len)
|
|
|
|
|
{
|
2010-08-13 15:22:44 +02:00
|
|
|
|
struct mem_region *region = lookup_mem_region (offset + xfered);
|
|
|
|
|
LONGEST rlen;
|
2010-05-17 03:15:20 +02:00
|
|
|
|
|
2010-08-13 15:22:44 +02:00
|
|
|
|
/* If there is no explicit region, a fake one should be created. */
|
|
|
|
|
gdb_assert (region);
|
|
|
|
|
|
|
|
|
|
if (region->hi == 0)
|
|
|
|
|
rlen = len - xfered;
|
|
|
|
|
else
|
|
|
|
|
rlen = region->hi - offset;
|
|
|
|
|
|
|
|
|
|
if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO)
|
2008-06-26 17:10:48 +02:00
|
|
|
|
{
|
2011-01-11 22:53:25 +01:00
|
|
|
|
/* Cannot read this region. Note that we can end up here only
|
2010-08-13 15:22:44 +02:00
|
|
|
|
if the region is explicitly marked inaccessible, or
|
|
|
|
|
'inaccessible-by-default' is in effect. */
|
|
|
|
|
xfered += rlen;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
LONGEST to_read = min (len - xfered, rlen);
|
|
|
|
|
gdb_byte *buffer = (gdb_byte *)xmalloc (to_read);
|
|
|
|
|
|
|
|
|
|
LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL,
|
|
|
|
|
(gdb_byte *) buffer,
|
|
|
|
|
offset + xfered, to_read);
|
|
|
|
|
/* Call an observer, notifying them of the xfer progress? */
|
2008-06-26 17:10:48 +02:00
|
|
|
|
if (xfer <= 0)
|
|
|
|
|
{
|
2011-01-11 22:53:25 +01:00
|
|
|
|
/* Got an error reading full chunk. See if maybe we can read
|
2010-08-13 15:22:44 +02:00
|
|
|
|
some subrange. */
|
|
|
|
|
xfree (buffer);
|
2011-01-05 23:22:53 +01:00
|
|
|
|
read_whatever_is_readable (ops, offset + xfered,
|
|
|
|
|
offset + xfered + to_read, &result);
|
2010-08-13 15:22:44 +02:00
|
|
|
|
xfered += to_read;
|
2008-06-26 17:10:48 +02:00
|
|
|
|
}
|
2010-08-13 15:22:44 +02:00
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
struct memory_read_result r;
|
|
|
|
|
r.data = buffer;
|
|
|
|
|
r.begin = offset + xfered;
|
|
|
|
|
r.end = r.begin + xfer;
|
|
|
|
|
VEC_safe_push (memory_read_result_s, result, &r);
|
|
|
|
|
xfered += xfer;
|
|
|
|
|
}
|
|
|
|
|
QUIT;
|
2008-06-26 17:10:48 +02:00
|
|
|
|
}
|
|
|
|
|
}
|
2010-08-13 15:22:44 +02:00
|
|
|
|
return result;
|
2008-06-26 17:10:48 +02:00
|
|
|
|
}
|
|
|
|
|
|
2010-08-13 15:22:44 +02:00
|
|
|
|
|
2006-08-15 20:46:25 +02:00
|
|
|
|
/* An alternative to target_write with progress callbacks. */
|
|
|
|
|
|
2003-10-17 20:24:49 +02:00
|
|
|
|
LONGEST
|
2006-08-15 20:46:25 +02:00
|
|
|
|
target_write_with_progress (struct target_ops *ops,
|
|
|
|
|
enum target_object object,
|
|
|
|
|
const char *annex, const gdb_byte *buf,
|
|
|
|
|
ULONGEST offset, LONGEST len,
|
|
|
|
|
void (*progress) (ULONGEST, void *), void *baton)
|
2003-10-17 20:24:49 +02:00
|
|
|
|
{
|
|
|
|
|
LONGEST xfered = 0;
|
* Makefile.in (SFILES): Add target-memory.c.
(COMMON_OBS): Add target-memory.o.
* memattr.c (lookup_mem_region): Adjust handling for
the top of memory. Improve comments.
* remote.c (packet_check_result): New function, split out
from packet_ok. Recognize "E." as an error prefix.
(packet_ok): Use it.
(remote_write_bytes_aux): New function, renamed from
remote_write_bytes. Take packet header, packet format,
and length flag as arguments.
(remote_write_bytes): Rewrite to use remote_write_bytes_aux.
(remote_send_printf, restore_remote_timeout)
(remote_flash_timeout, remote_flash_erase, remote_flash_write)
(remote_flash_done): New.
(remote_xfer_partial): Handle flash writes.
(init_remote_ops, init_remote_async_ops): Set to_flash_erase
and to_flash_done.
* symfile.c (struct load_section_data): Include a pointer to
the cumulative stats and a request queue. Move most members
to other types.
(struct load_progress_data, struct load_progress_section_data): New
types.
(load_progress): Handle a NULL baton and zero bytes. Update for
type changes.
(load_section_callback): Create memory write requests instead of
writing to memory. Don't print the progress message here.
(clear_memory_write_data): New function.
(generic_load): Use target_write_memory_blocks.
* target-memory.c: New file.
* target.c (update_current_target): Mention new uninherited methods.
(memory_xfer_partial): Issue an error for flash writes.
(target_flash_erase, target_flash_done): New functions.
(target_write_with_progress): Call the progress callback at the
start also.
* target.h (enum target_object): Add TARGET_OBJECT_FLASH.
(target_write_with_progress): Update comment.
(struct target_ops): Add to_flash_erase and to_flash_done.
(target_flash_erase, target_flash_done, struct memory_write_request)
(memory_write_request_s, enum flash_preserve_mode)
(target_write_memory_blocks): New, including a vector type
for memory_write_request_s.
2006-09-21 16:00:53 +02:00
|
|
|
|
|
|
|
|
|
/* Give the progress callback a chance to set up. */
|
|
|
|
|
if (progress)
|
|
|
|
|
(*progress) (0, baton);
|
|
|
|
|
|
2003-10-17 20:24:49 +02:00
|
|
|
|
while (xfered < len)
|
|
|
|
|
{
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
ULONGEST xfered_len;
|
|
|
|
|
enum target_xfer_status status;
|
|
|
|
|
|
|
|
|
|
status = target_write_partial (ops, object, annex,
|
|
|
|
|
(gdb_byte *) buf + xfered,
|
|
|
|
|
offset + xfered, len - xfered,
|
|
|
|
|
&xfered_len);
|
2006-08-15 20:46:25 +02:00
|
|
|
|
|
2014-02-23 05:24:08 +01:00
|
|
|
|
if (status != TARGET_XFER_OK)
|
|
|
|
|
return status == TARGET_XFER_EOF ? xfered : -1;
|
2006-08-15 20:46:25 +02:00
|
|
|
|
|
|
|
|
|
if (progress)
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
(*progress) (xfered_len, baton);
|
2006-08-15 20:46:25 +02:00
|
|
|
|
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
xfered += xfered_len;
|
2003-10-17 20:24:49 +02:00
|
|
|
|
QUIT;
|
|
|
|
|
}
|
|
|
|
|
return len;
|
|
|
|
|
}
|
|
|
|
|
|
2009-11-14 00:26:19 +01:00
|
|
|
|
/* For docs on target_write see target.h. */
|
|
|
|
|
|
2006-08-15 20:46:25 +02:00
|
|
|
|
LONGEST
|
|
|
|
|
target_write (struct target_ops *ops,
|
|
|
|
|
enum target_object object,
|
|
|
|
|
const char *annex, const gdb_byte *buf,
|
|
|
|
|
ULONGEST offset, LONGEST len)
|
|
|
|
|
{
|
|
|
|
|
return target_write_with_progress (ops, object, annex, buf, offset, len,
|
|
|
|
|
NULL, NULL);
|
|
|
|
|
}
|
|
|
|
|
|
2006-07-27 23:23:42 +02:00
|
|
|
|
/* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
|
|
|
|
|
the size of the transferred data. PADDING additional bytes are
|
|
|
|
|
available in *BUF_P. This is a helper function for
|
|
|
|
|
target_read_alloc; see the declaration of that function for more
|
|
|
|
|
information. */
|
2006-07-12 20:13:45 +02:00
|
|
|
|
|
2006-07-27 23:23:42 +02:00
|
|
|
|
static LONGEST
|
|
|
|
|
target_read_alloc_1 (struct target_ops *ops, enum target_object object,
|
|
|
|
|
const char *annex, gdb_byte **buf_p, int padding)
|
2006-07-12 20:13:45 +02:00
|
|
|
|
{
|
|
|
|
|
size_t buf_alloc, buf_pos;
|
|
|
|
|
gdb_byte *buf;
|
|
|
|
|
|
|
|
|
|
/* This function does not have a length parameter; it reads the
|
|
|
|
|
entire OBJECT). Also, it doesn't support objects fetched partly
|
|
|
|
|
from one target and partly from another (in a different stratum,
|
|
|
|
|
e.g. a core file and an executable). Both reasons make it
|
|
|
|
|
unsuitable for reading memory. */
|
|
|
|
|
gdb_assert (object != TARGET_OBJECT_MEMORY);
|
|
|
|
|
|
|
|
|
|
/* Start by reading up to 4K at a time. The target will throttle
|
|
|
|
|
this number down if necessary. */
|
|
|
|
|
buf_alloc = 4096;
|
|
|
|
|
buf = xmalloc (buf_alloc);
|
|
|
|
|
buf_pos = 0;
|
|
|
|
|
while (1)
|
|
|
|
|
{
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
ULONGEST xfered_len;
|
|
|
|
|
enum target_xfer_status status;
|
|
|
|
|
|
|
|
|
|
status = target_read_partial (ops, object, annex, &buf[buf_pos],
|
|
|
|
|
buf_pos, buf_alloc - buf_pos - padding,
|
|
|
|
|
&xfered_len);
|
|
|
|
|
|
|
|
|
|
if (status == TARGET_XFER_EOF)
|
2006-07-12 20:13:45 +02:00
|
|
|
|
{
|
|
|
|
|
/* Read all there was. */
|
|
|
|
|
if (buf_pos == 0)
|
|
|
|
|
xfree (buf);
|
|
|
|
|
else
|
|
|
|
|
*buf_p = buf;
|
|
|
|
|
return buf_pos;
|
|
|
|
|
}
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
else if (status != TARGET_XFER_OK)
|
|
|
|
|
{
|
|
|
|
|
/* An error occurred. */
|
|
|
|
|
xfree (buf);
|
|
|
|
|
return TARGET_XFER_E_IO;
|
|
|
|
|
}
|
2006-07-12 20:13:45 +02:00
|
|
|
|
|
Return target_xfer_status in to_xfer_partial
This patch does the conversion of to_xfer_partial from
LONGEST (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len);
to
enum target_xfer_status (*to_xfer_partial) (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len);
It changes to_xfer_partial return the transfer status and the transfered
length by *XFERED_LEN. Generally, the return status has three stats,
- TARGET_XFER_OK,
- TARGET_XFER_EOF,
- TARGET_XFER_E_XXXX,
See the comments to them in 'enum target_xfer_status'. Note that
Pedro suggested not name TARGET_XFER_DONE, as it is confusing,
compared with "TARGET_XFER_OK". We finally name it TARGET_XFER_EOF.
With this change, GDB core can handle unavailable data in a convenient
way.
The rationale behind this change was mentioned here
https://sourceware.org/ml/gdb-patches/2013-10/msg00761.html
Consider an object/value like this:
0 100 150 200 512
DDDDDDDDDDDxxxxxxxxxDDDDDD...DDIIIIIIIIIIII..III
where D is valid data, and xxx is unavailable data, and I is beyond
the end of the object (Invalid). Currently, if we start the
xfer at 0, requesting, say 512 bytes, we'll first get back 100 bytes.
The xfer machinery then retries fetching [100,512), and gets back
TARGET_XFER_E_UNAVAILABLE. That's sufficient when you're either
interested in either having the whole of the 512 bytes available,
or erroring out. But, in this scenario, we're interested in
the data at [150,512). The problem is that the last
TARGET_XFER_E_UNAVAILABLE gives us no indication where to
start the read next. We'd need something like:
get me [0,512) >>>
<<< here's [0,100), *xfered_len is 100, returns TARGET_XFER_OK
get me [100,512) >>> (**1)
<<< [100,150) is unavailable, *xfered_len is 50, return TARGET_XFER_E_UNAVAILABLE.
get me [150,512) >>>
<<< here's [150,200), *xfered_len is 50, return TARGET_XFER_OK.
get me [200,512) >>>
<<< no more data, return TARGET_XFER_EOF.
This naturally implies pushing down the decision of whether
to return TARGET_XFER_E_UNAVAILABLE or something else
down to the target. (Which kinds of leads back to tfile
itself reading from RO memory from file (though we could
export a function in exec.c for that that tfile delegates to,
instead of re-adding the old code).
Beside this change, we also add a macro TARGET_XFER_STATUS_ERROR_P to
check whether a status is an error or not, to stop using "status < 0".
This patch also eliminates the comparison between status and 0.
No target implementations to to_xfer_partial adapts this new
interface. The interface still behaves as before.
gdb:
2014-02-11 Yao Qi <yao@codesourcery.com>
* target.h (enum target_xfer_error): Rename to ...
(enum target_xfer_status): ... it. New. All users updated.
(enum target_xfer_status) <TARGET_XFER_OK>, <TARGET_XFER_EOF>:
New.
(TARGET_XFER_STATUS_ERROR_P): New macro.
(target_xfer_error_to_string): Remove declaration.
(target_xfer_status_to_string): Declare.
(target_xfer_partial_ftype): Adjust it.
(struct target_ops) <to_xfer_partial>: Return
target_xfer_status. Add argument xfered_len. Update
comments.
* target.c (target_xfer_error_to_string): Rename to ...
(target_xfer_status_to_string): ... it. New. All callers
updated.
(target_read_live_memory): Likewise. Call target_xfer_partial
instead of target_read.
(memory_xfer_live_readonly_partial): Return
target_xfer_status. Add argument xfered_len.
(raw_memory_xfer_partial): Likewise.
(memory_xfer_partial_1): Likewise.
(memory_xfer_partial): Likewise.
(target_xfer_partial): Likewise. Check *XFERED_LEN is set
properly. Update debug message.
(default_xfer_partial, current_xfer_partial): Likewise.
(target_write_partial): Likewise.
(target_read_partial): Likewise. All callers updated.
(read_whatever_is_readable): Likewise.
(target_write_with_progress): Likewise.
(target_read_alloc_1): Likewise.
* aix-thread.c (aix_thread_xfer_partial): Likewise.
* auxv.c (procfs_xfer_auxv): Likewise.
(ld_so_xfer_auxv, memory_xfer_auxv): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
* bsd-kvm.c (bsd_kvm_xfer_partial): Likewise.
* bsd-uthread.c (bsd_uthread_xfer_partia): Likewise.
* corefile.c (read_memory): Adjust.
* corelow.c (core_xfer_partial): Likewise.
* ctf.c (ctf_xfer_partial): Likewise.
* darwin-nat.c (darwin_read_dyld_info): Likewise. All callers
updated.
(darwin_xfer_partial): Likewise.
* exec.c (section_table_xfer_memory_partial): Likewise. All
callers updated.
(exec_xfer_partial): Likewise.
* exec.h (section_table_xfer_memory_partial): Update
declaration.
* gnu-nat.c (gnu_xfer_memory): Likewise. Assert 'res' is not
negative.
(gnu_xfer_partial): Likewise.
* ia64-hpux-nat.c (ia64_hpux_xfer_memory_no_bs): Likewise.
(ia64_hpux_xfer_memory, ia64_hpux_xfer_uregs): Likewise.
(ia64_hpux_xfer_solib_got): Likewise.
* inf-ptrace.c (inf_ptrace_xfer_partial): Likewise. Change
type of 'partial_len' to ULONGEST.
* inf-ttrace.c (inf_ttrace_xfer_partial): Likewise.
* linux-nat.c (linux_xfer_siginfo ): Likewise.
(linux_nat_xfer_partial): Likewise.
(linux_proc_xfer_partial, linux_xfer_partial): Likewise.
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
(monitor_xfer_partial): Likewise.
* procfs.c (procfs_xfer_partial): Likewise.
* record-btrace.c (record_btrace_xfer_partial): Likewise.
* record-full.c (record_full_xfer_partial): Likewise.
(record_full_core_xfer_partial): Likewise.
* remote-sim.c (gdbsim_xfer_memory): Likewise.
(gdbsim_xfer_partial): Likewise.
* remote.c (remote_write_bytes_aux): Likewise. All callers
updated.
(remote_write_bytes, remote_read_bytes): Likewise. All
callers updated.
(remote_flash_erase): Likewise. All callers updated.
(remote_write_qxfer): Likewise. All callers updated.
(remote_read_qxfer): Likewise. All callers updated.
(remote_xfer_partial): Likewise.
* rs6000-nat.c (rs6000_xfer_partial): Likewise.
(rs6000_xfer_shared_libraries): Likewise.
* sol-thread.c (sol_thread_xfer_partial): Likewise.
(sol_thread_xfer_partial): Likewise.
* sparc-nat.c (sparc_xfer_wcookie): Likewise.
(sparc_xfer_partial): Likewise.
* spu-linux-nat.c (spu_proc_xfer_spu): Likewise. All callers
updated.
(spu_xfer_partial): Likewise.
* spu-multiarch.c (spu_xfer_partial): Likewise.
* tracepoint.c (tfile_xfer_partial): Likewise.
* windows-nat.c (windows_xfer_memory): Likewise.
(windows_xfer_shared_libraries): Likewise.
(windows_xfer_partial): Likewise.
* valprint.c: Replace 'target_xfer_error' with
'target_xfer_status' in comments.
2014-01-27 13:35:33 +01:00
|
|
|
|
buf_pos += xfered_len;
|
2006-07-12 20:13:45 +02:00
|
|
|
|
|
|
|
|
|
/* If the buffer is filling up, expand it. */
|
|
|
|
|
if (buf_alloc < buf_pos * 2)
|
|
|
|
|
{
|
|
|
|
|
buf_alloc *= 2;
|
|
|
|
|
buf = xrealloc (buf, buf_alloc);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
QUIT;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2006-07-27 23:23:42 +02:00
|
|
|
|
/* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
|
|
|
|
|
the size of the transferred data. See the declaration in "target.h"
|
|
|
|
|
function for more information about the return value. */
|
|
|
|
|
|
|
|
|
|
LONGEST
|
|
|
|
|
target_read_alloc (struct target_ops *ops, enum target_object object,
|
|
|
|
|
const char *annex, gdb_byte **buf_p)
|
|
|
|
|
{
|
|
|
|
|
return target_read_alloc_1 (ops, object, annex, buf_p, 0);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
|
|
|
|
|
returned as a string, allocated using xmalloc. If an error occurs
|
|
|
|
|
or the transfer is unsupported, NULL is returned. Empty objects
|
|
|
|
|
are returned as allocated but empty strings. A warning is issued
|
|
|
|
|
if the result contains any embedded NUL bytes. */
|
|
|
|
|
|
|
|
|
|
char *
|
|
|
|
|
target_read_stralloc (struct target_ops *ops, enum target_object object,
|
|
|
|
|
const char *annex)
|
|
|
|
|
{
|
Avoid invalid pointer to pointer conversions.
Casts between 'char **' <-> 'unsigned char **' and 'char **' <-> const
char **' are actually invalid:
http://gcc.gnu.org/ml/gcc-help/2013-03/msg00118.html
In a nutshell, char (and variants) can alias anything, but pointers to
chars get no special treatment (cf. C99/N1256, 6.5/7).
Turns out older gcc's actually warn/complain on these constructs,
though newer one's don't:
http://sourceware.org/ml/gdb-patches/2013-03/msg00429.html
http://sourceware.org/ml/gdb-patches/2013-03/msg00430.html
This patch fixes the cases I added last week. It also fixes one other
preexisting case in charset.c, though it seems even older gccs don't
complain of char * <-> const char * aliasing.
Tested on x86_64 Fedora 17.
gdb/
2013-03-11 Pedro Alves <palves@redhat.com>
* charset.c (convert_between_encodings): Don't cast between
different pointer to pointer types. Instead, make the 'inp' local
be of the type iconv expects.
(wchar_iterate): Don't cast between different pointer to pointer
types. Instead, use new pointer local of the type iconv expects.
* target.c (target_read_stralloc, target_fileio_read_stralloc):
Add new local of type char pointer, and use it to get a
char/string view of the byte buffer, instead of casting between
pointer to pointer types.
2013-03-11 13:22:20 +01:00
|
|
|
|
gdb_byte *buffer;
|
|
|
|
|
char *bufstr;
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
LONGEST i, transferred;
|
2006-07-27 23:23:42 +02:00
|
|
|
|
|
Avoid invalid pointer to pointer conversions.
Casts between 'char **' <-> 'unsigned char **' and 'char **' <-> const
char **' are actually invalid:
http://gcc.gnu.org/ml/gcc-help/2013-03/msg00118.html
In a nutshell, char (and variants) can alias anything, but pointers to
chars get no special treatment (cf. C99/N1256, 6.5/7).
Turns out older gcc's actually warn/complain on these constructs,
though newer one's don't:
http://sourceware.org/ml/gdb-patches/2013-03/msg00429.html
http://sourceware.org/ml/gdb-patches/2013-03/msg00430.html
This patch fixes the cases I added last week. It also fixes one other
preexisting case in charset.c, though it seems even older gccs don't
complain of char * <-> const char * aliasing.
Tested on x86_64 Fedora 17.
gdb/
2013-03-11 Pedro Alves <palves@redhat.com>
* charset.c (convert_between_encodings): Don't cast between
different pointer to pointer types. Instead, make the 'inp' local
be of the type iconv expects.
(wchar_iterate): Don't cast between different pointer to pointer
types. Instead, use new pointer local of the type iconv expects.
* target.c (target_read_stralloc, target_fileio_read_stralloc):
Add new local of type char pointer, and use it to get a
char/string view of the byte buffer, instead of casting between
pointer to pointer types.
2013-03-11 13:22:20 +01:00
|
|
|
|
transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1);
|
|
|
|
|
bufstr = (char *) buffer;
|
2006-07-27 23:23:42 +02:00
|
|
|
|
|
|
|
|
|
if (transferred < 0)
|
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
|
|
if (transferred == 0)
|
|
|
|
|
return xstrdup ("");
|
|
|
|
|
|
Avoid invalid pointer to pointer conversions.
Casts between 'char **' <-> 'unsigned char **' and 'char **' <-> const
char **' are actually invalid:
http://gcc.gnu.org/ml/gcc-help/2013-03/msg00118.html
In a nutshell, char (and variants) can alias anything, but pointers to
chars get no special treatment (cf. C99/N1256, 6.5/7).
Turns out older gcc's actually warn/complain on these constructs,
though newer one's don't:
http://sourceware.org/ml/gdb-patches/2013-03/msg00429.html
http://sourceware.org/ml/gdb-patches/2013-03/msg00430.html
This patch fixes the cases I added last week. It also fixes one other
preexisting case in charset.c, though it seems even older gccs don't
complain of char * <-> const char * aliasing.
Tested on x86_64 Fedora 17.
gdb/
2013-03-11 Pedro Alves <palves@redhat.com>
* charset.c (convert_between_encodings): Don't cast between
different pointer to pointer types. Instead, make the 'inp' local
be of the type iconv expects.
(wchar_iterate): Don't cast between different pointer to pointer
types. Instead, use new pointer local of the type iconv expects.
* target.c (target_read_stralloc, target_fileio_read_stralloc):
Add new local of type char pointer, and use it to get a
char/string view of the byte buffer, instead of casting between
pointer to pointer types.
2013-03-11 13:22:20 +01:00
|
|
|
|
bufstr[transferred] = 0;
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
|
|
|
|
|
/* Check for embedded NUL bytes; but allow trailing NULs. */
|
Avoid invalid pointer to pointer conversions.
Casts between 'char **' <-> 'unsigned char **' and 'char **' <-> const
char **' are actually invalid:
http://gcc.gnu.org/ml/gcc-help/2013-03/msg00118.html
In a nutshell, char (and variants) can alias anything, but pointers to
chars get no special treatment (cf. C99/N1256, 6.5/7).
Turns out older gcc's actually warn/complain on these constructs,
though newer one's don't:
http://sourceware.org/ml/gdb-patches/2013-03/msg00429.html
http://sourceware.org/ml/gdb-patches/2013-03/msg00430.html
This patch fixes the cases I added last week. It also fixes one other
preexisting case in charset.c, though it seems even older gccs don't
complain of char * <-> const char * aliasing.
Tested on x86_64 Fedora 17.
gdb/
2013-03-11 Pedro Alves <palves@redhat.com>
* charset.c (convert_between_encodings): Don't cast between
different pointer to pointer types. Instead, make the 'inp' local
be of the type iconv expects.
(wchar_iterate): Don't cast between different pointer to pointer
types. Instead, use new pointer local of the type iconv expects.
* target.c (target_read_stralloc, target_fileio_read_stralloc):
Add new local of type char pointer, and use it to get a
char/string view of the byte buffer, instead of casting between
pointer to pointer types.
2013-03-11 13:22:20 +01:00
|
|
|
|
for (i = strlen (bufstr); i < transferred; i++)
|
|
|
|
|
if (bufstr[i] != 0)
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
{
|
|
|
|
|
warning (_("target object %d, annex %s, "
|
|
|
|
|
"contained unexpected null characters"),
|
|
|
|
|
(int) object, annex ? annex : "(none)");
|
|
|
|
|
break;
|
|
|
|
|
}
|
2006-07-27 23:23:42 +02:00
|
|
|
|
|
Avoid invalid pointer to pointer conversions.
Casts between 'char **' <-> 'unsigned char **' and 'char **' <-> const
char **' are actually invalid:
http://gcc.gnu.org/ml/gcc-help/2013-03/msg00118.html
In a nutshell, char (and variants) can alias anything, but pointers to
chars get no special treatment (cf. C99/N1256, 6.5/7).
Turns out older gcc's actually warn/complain on these constructs,
though newer one's don't:
http://sourceware.org/ml/gdb-patches/2013-03/msg00429.html
http://sourceware.org/ml/gdb-patches/2013-03/msg00430.html
This patch fixes the cases I added last week. It also fixes one other
preexisting case in charset.c, though it seems even older gccs don't
complain of char * <-> const char * aliasing.
Tested on x86_64 Fedora 17.
gdb/
2013-03-11 Pedro Alves <palves@redhat.com>
* charset.c (convert_between_encodings): Don't cast between
different pointer to pointer types. Instead, make the 'inp' local
be of the type iconv expects.
(wchar_iterate): Don't cast between different pointer to pointer
types. Instead, use new pointer local of the type iconv expects.
* target.c (target_read_stralloc, target_fileio_read_stralloc):
Add new local of type char pointer, and use it to get a
char/string view of the byte buffer, instead of casting between
pointer to pointer types.
2013-03-11 13:22:20 +01:00
|
|
|
|
return bufstr;
|
2006-07-27 23:23:42 +02:00
|
|
|
|
}
|
|
|
|
|
|
2003-10-24 22:24:06 +02:00
|
|
|
|
/* Memory transfer methods. */
|
|
|
|
|
|
|
|
|
|
void
|
2005-05-16 Andrew Cagney <cagney@gnu.org>
* target.h (target_read_partial, target_write_partial)
(do_xfer_memory, xfer_memory, target_read, target_write)
(get_target_memory): For buffers, change "void*" to gdb_byte.
(struct target_ops): Ditto for to_xfer_partial and
deprecated_xfer_memory.
* dcache.h (dcache_xfer_memory): Ditto.
* target.c (default_xfer_partial, target_read_partial)
(target_write_partial, target_read, target_write)
(do_xfer_memory, update_current_target, get_target_memory): Update.
(target_read_string): Change buf to a gdb_byte.
* dcache.c (dcache_xfer_memory): Update.
* exec.c (xfer_memory): Make buffer type to gdb_byte.
* mem-break.c (default_memory_insert_breakpoint): Remove cast.
* disasm.c (dis_asm_read_memory): Remove cast, use gdb_byte.
2005-05-16 06:45:43 +02:00
|
|
|
|
get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf,
|
2003-10-24 22:24:06 +02:00
|
|
|
|
LONGEST len)
|
|
|
|
|
{
|
2009-06-03 20:50:36 +02:00
|
|
|
|
/* This method is used to read from an alternate, non-current
|
|
|
|
|
target. This read must bypass the overlay support (as symbols
|
|
|
|
|
don't match this target), and GDB's internal cache (wrong cache
|
|
|
|
|
for this target). */
|
|
|
|
|
if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len)
|
2003-10-24 22:24:06 +02:00
|
|
|
|
!= len)
|
Stop using errno values around target_xfer interfaces and memory errors.
target_read_memory & friends build on top of target_read (thus on top
of the target_xfer machinery), but turn all errors to EIO, an errno
value. I think we'd better convert all these to return a
target_xfer_error too, like target_xfer_partial in a previous patch.
The patch starts by doing that.
(The patch does not add a enum target_xfer_error value for '0'/no
error, and likewise does not change the return type of several of
these functions to enum target_xfer_error, because different functions
return '0' with different semantics.)
I audited the tree for memory_error calls, EIO checks, places where
GDB hardcodes 'errno = EIO', and also for strerror calls. What I
found is that nowadays there's really no need to handle random errno
values, other than the EIOs gdb itself hardcodes. No doubt errno
values would appear in common code back in the day when
target_xfer_memory was the main interface to access memory, but
nowadays, any errno value that deprecated interface could return is
just absorved by default_xfer_partial:
else if (xfered == 0 && errno == 0)
/* "deprecated_xfer_memory" uses 0, cross checked against
ERRNO as one indication of an error. */
return 0;
else
return -1;
There are two places in the code that check for EIO and print "out of
bounds", and defer to strerror for other errors. That's
c-lang.c:c_get_string, and valprint.c.:val_print_string. AFAICT, the
strerror branch can never be reached nowadays, as the only error
possible to get at those points is EIO, given that it's GDB itself
that set that errno value (in target_read_memory, etc.).
breakpoint.c:insert_bp_location always prints the error val as if an
errno, returned by target_insert_breakpoint, with strerr. Now the
error here is either always EIO for mem-break.c targets (again
hardcoded by the target_read_memory/target_write_memory functions), so
this always prints "Input/output error" or similar (depending on
host), or, for remote targets (and probably others), this gem:
Error accessing memory address 0x80200400: Unknown error -1.
This patch makes these 3 places print the exact same error
memory_error prints. This changes output, but I think this is better,
for making memory error output consistent with other commands, and, it
means we have a central place to tweak for memory errors.
E.g., this changes:
Cannot insert breakpoint 1.
Error accessing memory address 0x5fc660: Input/output error.
to:
Cannot insert breakpoint 1.
Cannot access memory at address 0x5fc660
Which I find pretty much acceptable.
Surprisingly, only py-prettyprint.exp had a regression, for needing an
adjustment. I also grepped the testsuite for the old errors, and
found no other hits.
Now that errno values aren't used anywhere in any of these memory
access related routines, I made memory_error itself take a
target_xfer_error instead of an errno. The new
target_xfer_memory_error function added recently is no longer
necessary, and is thus removed.
Tested on x86_64 Fedora 17, native and gdbserver.
gdb/
2013-10-09 Pedro Alves <palves@redhat.com>
* breakpoint.c (insert_bp_location): Use memory_error_message to
build the memory error string.
* c-lang.c: Include "gdbcore.h".
(c_get_string): Use memory_error to throw error.
(target_xfer_memory_error): Delete.
(memory_error_message): New, factored out from
target_xfer_memory_error.
(memory_error): Change parameter type to target_xfer_error.
Rewrite.
(read_memory): Use memory_error instead of
target_xfer_memory_error.
* gdbcore.h: Include "target.h".
(memory_error): Change parameter type to target_xfer_error.
(memory_error_message): Declare function.
* target.c (target_read_memory, target_read_stack)
(target_write_memory, target_write_raw_memory): Return
TARGET_XFER_E_IO on error. Adjust comments.
(get_target_memory): Pass TARGET_XFER_E_IO to memory_error,
instead of EIO.
* target.h (target_read, target_insert_breakpoint)
(target_remove_breakpoint): Adjust comments.
* valprint.c (partial_memory_read): Rename parameter, and adjust
comment.
(val_print_string): Use memory_error_message to build the memory
error string.
gdb/testsuite/
2013-10-09 Pedro Alves <palves@redhat.com>
* gdb.python/py-prettyprint.exp (run_lang_tests): Adjust expected
output.
2013-10-09 19:00:00 +02:00
|
|
|
|
memory_error (TARGET_XFER_E_IO, addr);
|
2003-10-24 22:24:06 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
ULONGEST
|
2010-05-17 03:15:20 +02:00
|
|
|
|
get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr,
|
|
|
|
|
int len, enum bfd_endian byte_order)
|
2003-10-24 22:24:06 +02:00
|
|
|
|
{
|
2006-01-10 23:38:51 +01:00
|
|
|
|
gdb_byte buf[sizeof (ULONGEST)];
|
2003-10-24 22:24:06 +02:00
|
|
|
|
|
|
|
|
|
gdb_assert (len <= sizeof (buf));
|
|
|
|
|
get_target_memory (ops, addr, buf, len);
|
* defs.h (extract_signed_integer, extract_unsigned_integer,
extract_long_unsigned_integer, store_signed_integer,
store_unsigned_integer): Add BYTE_ORDER parameter.
* findvar.c (extract_signed_integer, extract_unsigned_integer,
extract_long_unsigned_integer, store_signed_integer,
store_unsigned_integer): Add BYTE_ORDER parameter. Use it
instead of current_gdbarch.
* gdbcore.h (read_memory_integer, safe_read_memory_integer,
read_memory_unsigned_integer, write_memory_signed_integer,
write_memory_unsigned_integer): Add BYTE_ORDER parameter.
* corefile.c (struct captured_read_memory_integer_arguments): Add
BYTE_ORDER member.
(safe_read_memory_integer): Add BYTE_ORDER parameter. Store it into
struct captured_read_memory_integer_arguments.
(do_captured_read_memory_integer): Pass it to read_memory_integer.
(read_memory_integer): Add BYTE_ORDER parameter. Pass it to
extract_signed_integer.
(read_memory_unsigned_integer): Add BYTE_ORDER parameter. Pass it to
extract_unsigned_integer.
(write_memory_signed_integer): Add BYTE_ORDER parameter. Pass it
to store_signed_integer.
(write_memory_unsigned_integer): Add BYTE_ORDER parameter. Pass it
to store_unsigned_integer.
* target.h (get_target_memory_unsigned): Add BYTE_ORDER parameter.
* target.c (get_target_memory_unsigned): Add BYTE_ORDER parameter.
Pass it to extract_unsigned_integer.
Update calls to extract_signed_integer, extract_unsigned_integer,
extract_long_unsigned_integer, store_signed_integer,
store_unsigned_integer, read_memory_integer,
read_memory_unsigned_integer, safe_read_memory_integer,
write_memory_signed_integer, write_memory_unsigned_integer, and
get_target_memory_unsigned to pass byte order:
* ada-lang.c (ada_value_binop): Update.
* ada-valprint.c (char_at): Update.
* alpha-osf1-tdep.c (alpha_osf1_sigcontext_addr): Update.
* alpha-tdep.c (alpha_lds, alpha_sts, alpha_push_dummy_call,
alpha_extract_return_value, alpha_read_insn,
alpha_get_longjmp_target): Update.
* amd64-linux-tdep.c (amd64_linux_sigcontext_addr): Update.
* amd64obsd-tdep.c (amd64obsd_supply_uthread,
amd64obsd_collect_uthread, amd64obsd_trapframe_cache): Update.
* amd64-tdep.c (amd64_push_dummy_call, amd64_analyze_prologue,
amd64_frame_cache, amd64_sigtramp_frame_cache, fixup_riprel,
amd64_displaced_step_fixup): Update.
* arm-linux-tdep.c (arm_linux_sigreturn_init,
arm_linux_rt_sigreturn_init, arm_linux_supply_gregset): Update.
* arm-tdep.c (thumb_analyze_prologue, arm_skip_prologue,
arm_scan_prologue, arm_push_dummy_call, thumb_get_next_pc,
arm_get_next_pc, arm_extract_return_value, arm_store_return_value,
arm_return_value): Update.
* arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update.
* auxv.c (default_auxv_parse): Update.
* avr-tdep.c (avr_address_to_pointer, avr_pointer_to_address,
avr_scan_prologue, avr_extract_return_value,
avr_frame_prev_register, avr_push_dummy_call): Update.
* bsd-uthread.c (bsd_uthread_check_magic, bsd_uthread_lookup_offset,
bsd_uthread_wait, bsd_uthread_thread_alive,
bsd_uthread_extra_thread_info): Update.
* c-lang.c (c_printstr, print_wchar): Update.
* cp-valprint.c (cp_print_class_member): Update.
* cris-tdep.c (cris_sigcontext_addr, cris_sigtramp_frame_unwind_cache,
cris_push_dummy_call, cris_scan_prologue, cris_store_return_value,
cris_extract_return_value, find_step_target, dip_prefix,
sixteen_bit_offset_branch_op, none_reg_mode_jump_op,
move_mem_to_reg_movem_op, get_data_from_address): Update.
* dwarf2expr.c (dwarf2_read_address, execute_stack_op): Update.
* dwarf2-frame.c (execute_cfa_program): Update.
* dwarf2loc.c (find_location_expression): Update.
* dwarf2read.c (dwarf2_const_value): Update.
* expprint.c (print_subexp_standard): Update.
* findvar.c (unsigned_pointer_to_address, signed_pointer_to_address,
unsigned_address_to_pointer, address_to_signed_pointer,
read_var_value): Update.
* frame.c (frame_unwind_register_signed,
frame_unwind_register_unsigned, get_frame_memory_signed,
get_frame_memory_unsigned): Update.
* frame-unwind.c (frame_unwind_got_constant): Update.
* frv-linux-tdep.c (frv_linux_pc_in_sigtramp,
frv_linux_sigcontext_reg_addr, frv_linux_sigtramp_frame_cache):
Update.
* frv-tdep.c (frv_analyze_prologue, frv_skip_main_prologue,
frv_extract_return_value, find_func_descr,
frv_convert_from_func_ptr_addr, frv_push_dummy_call): Update.
* f-valprint.c (f_val_print): Update.
* gnu-v3-abi.c (gnuv3_decode_method_ptr, gnuv3_make_method_ptr):
Update.
* h8300-tdep.c (h8300_is_argument_spill, h8300_analyze_prologue,
h8300_push_dummy_call, h8300_extract_return_value,
h8300h_extract_return_value, h8300_store_return_value,
h8300h_store_return_value): Update.
* hppabsd-tdep.c (hppabsd_find_global_pointer): Update.
* hppa-hpux-nat.c (hppa_hpux_fetch_register, hppa_hpux_store_register):
Update.
* hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline,
hppa64_hpux_in_solib_call_trampoline,
hppa_hpux_in_solib_return_trampoline, hppa_hpux_skip_trampoline_code,
hppa_hpux_sigtramp_frame_unwind_cache,
hppa_hpux_sigtramp_unwind_sniffer, hppa32_hpux_find_global_pointer,
hppa64_hpux_find_global_pointer, hppa_hpux_search_pattern,
hppa32_hpux_search_dummy_call_sequence,
hppa64_hpux_search_dummy_call_sequence, hppa_hpux_supply_save_state,
hppa_hpux_unwind_adjust_stub): Update.
* hppa-linux-tdep.c (insns_match_pattern,
hppa_linux_find_global_pointer): Update.
* hppa-tdep.c (hppa_in_function_epilogue_p, hppa32_push_dummy_call,
hppa64_convert_code_addr_to_fptr, hppa64_push_dummy_call,
skip_prologue_hard_way, hppa_frame_cache, hppa_fallback_frame_cache,
hppa_pseudo_register_read, hppa_frame_prev_register_helper,
hppa_match_insns): Update.
* hpux-thread.c (hpux_thread_fetch_registers): Update.
* i386-tdep.c (i386bsd_sigcontext_addr): Update.
* i386-cygwin-tdep.c (core_process_module_section): Update.
* i386-darwin-nat.c (i386_darwin_sstep_at_sigreturn,
amd64_darwin_sstep_at_sigreturn): Update.
* i386-darwin-tdep.c (i386_darwin_sigcontext_addr,
amd64_darwin_sigcontext_addr): Likewise.
* i386-linux-nat.c (i386_linux_sigcontext_addr): Update.
* i386nbsd-tdep.c (i386nbsd_sigtramp_cache_init): Update.
* i386-nto-tdep.c (i386nto_sigcontext_addr): Update.
* i386obsd-nat.c (i386obsd_supply_pcb): Update.
* i386obsd-tdep.c (i386obsd_supply_uthread, i386obsd_collect_uthread,
i386obsd_trapframe_cache): Update.
* i386-tdep.c (i386_displaced_step_fixup, i386_follow_jump,
i386_analyze_frame_setup, i386_analyze_prologue,
i386_skip_main_prologue, i386_frame_cache, i386_sigtramp_frame_cache,
i386_get_longjmp_target, i386_push_dummy_call,
i386_pe_skip_trampoline_code, i386_svr4_sigcontext_addr,
i386_fetch_pointer_argument): Update.
* i387-tdep.c (i387_supply_fsave): Update.
* ia64-linux-tdep.c (ia64_linux_sigcontext_register_address): Update.
* ia64-tdep.c (ia64_pseudo_register_read, ia64_pseudo_register_write,
examine_prologue, ia64_frame_cache, ia64_frame_prev_register,
ia64_sigtramp_frame_cache, ia64_sigtramp_frame_prev_register,
ia64_access_reg, ia64_access_rse_reg, ia64_libunwind_frame_this_id,
ia64_libunwind_frame_prev_register,
ia64_libunwind_sigtramp_frame_this_id,
ia64_libunwind_sigtramp_frame_prev_register, ia64_find_global_pointer,
find_extant_func_descr, find_func_descr,
ia64_convert_from_func_ptr_addr, ia64_push_dummy_call, ia64_dummy_id,
ia64_unwind_pc): Update.
* iq2000-tdep.c (iq2000_pointer_to_address, iq2000_address_to_pointer,
iq2000_scan_prologue, iq2000_extract_return_value,
iq2000_push_dummy_call): Update.
* irix5nat.c (fill_gregset): Update.
* jv-lang.c (evaluate_subexp_java): Update.
* jv-valprint.c (java_value_print): Update.
* lm32-tdep.c (lm32_analyze_prologue, lm32_push_dummy_call,
lm32_extract_return_value, lm32_store_return_value): Update.
* m32c-tdep.c (m32c_push_dummy_call, m32c_return_value,
m32c_skip_trampoline_code, m32c_m16c_address_to_pointer,
m32c_m16c_pointer_to_address): Update.
* m32r-tdep.c (m32r_store_return_value, decode_prologue,
m32r_skip_prologue, m32r_push_dummy_call, m32r_extract_return_value):
Update.
* m68hc11-tdep.c (m68hc11_pseudo_register_read,
m68hc11_pseudo_register_write, m68hc11_analyze_instruction,
m68hc11_push_dummy_call): Update.
* m68linux-tdep.c (m68k_linux_pc_in_sigtramp,
m68k_linux_get_sigtramp_info, m68k_linux_sigtramp_frame_cache):
Update.
* m68k-tdep.c (m68k_push_dummy_call, m68k_analyze_frame_setup,
m68k_analyze_register_saves, m68k_analyze_prologue, m68k_frame_cache,
m68k_get_longjmp_target): Update.
* m88k-tdep.c (m88k_fetch_instruction): Update.
* mep-tdep.c (mep_pseudo_cr32_read, mep_pseudo_csr_write,
mep_pseudo_cr32_write, mep_get_insn, mep_push_dummy_call): Update.
* mi/mi-main.c (mi_cmd_data_write_memory): Update.
* mips-linux-tdep.c (mips_linux_get_longjmp_target, supply_32bit_reg,
mips64_linux_get_longjmp_target, mips64_fill_gregset,
mips64_fill_fpregset, mips_linux_in_dynsym_stub): Update.
* mipsnbdsd-tdep.c (mipsnbsd_get_longjmp_target): Update.
* mips-tdep.c (mips_fetch_instruction, fetch_mips_16,
mips_eabi_push_dummy_call, mips_n32n64_push_dummy_call,
mips_o32_push_dummy_call, mips_o64_push_dummy_call,
mips_single_step_through_delay, mips_skip_pic_trampoline_code,
mips_integer_to_address): Update.
* mn10300-tdep.c (mn10300_analyze_prologue, mn10300_push_dummy_call):
Update.
* monitor.c (monitor_supply_register, monitor_write_memory,
monitor_read_memory_single): Update.
* moxie-tdep.c (moxie_store_return_value, moxie_extract_return_value,
moxie_analyze_prologue): Update.
* mt-tdep.c (mt_return_value, mt_skip_prologue, mt_select_coprocessor,
mt_pseudo_register_read, mt_pseudo_register_write, mt_registers_info,
mt_push_dummy_call): Update.
* objc-lang.c (read_objc_method, read_objc_methlist_nmethods,
read_objc_methlist_method, read_objc_object, read_objc_super,
read_objc_class, find_implementation_from_class): Update.
* ppc64-linux-tdep.c (ppc64_desc_entry_point,
ppc64_linux_convert_from_func_ptr_addr, ppc_linux_sigtramp_cache):
Update.
* ppcobsd-tdep.c (ppcobsd_sigtramp_frame_sniffer,
ppcobsd_sigtramp_frame_cache): Update.
* ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call,
do_ppc_sysv_return_value, ppc64_sysv_abi_push_dummy_call,
ppc64_sysv_abi_return_value): Update.
* ppc-linux-nat.c (ppc_linux_auxv_parse): Update.
* procfs.c (procfs_auxv_parse): Update.
* p-valprint.c (pascal_val_print): Update.
* regcache.c (regcache_raw_read_signed, regcache_raw_read_unsigned,
regcache_raw_write_signed, regcache_raw_write_unsigned,
regcache_cooked_read_signed, regcache_cooked_read_unsigned,
regcache_cooked_write_signed, regcache_cooked_write_unsigned): Update.
* remote-m32r-sdi.c (m32r_fetch_register): Update.
* remote-mips.c (mips_wait, mips_fetch_registers, mips_xfer_memory):
Update.
* rs6000-aix-tdep.c (rs6000_push_dummy_call, rs6000_return_value,
rs6000_convert_from_func_ptr_addr, branch_dest,
rs6000_software_single_step): Update.
* rs6000-tdep.c (rs6000_in_function_epilogue_p,
ppc_displaced_step_fixup, ppc_deal_with_atomic_sequence,
bl_to_blrl_insn_p, rs6000_fetch_instruction, skip_prologue,
rs6000_skip_main_prologue, rs6000_skip_trampoline_code,
rs6000_frame_cache): Update.
* s390-tdep.c (s390_pseudo_register_read, s390_pseudo_register_write,
s390x_pseudo_register_read, s390x_pseudo_register_write, s390_load,
s390_backchain_frame_unwind_cache, s390_sigtramp_frame_unwind_cache,
extend_simple_arg, s390_push_dummy_call, s390_return_value): Update.
* scm-exp.c (scm_lreadr): Update.
* scm-lang.c (scm_get_field, scm_unpack): Update.
* scm-valprint.c (scm_val_print): Update.
* score-tdep.c (score_breakpoint_from_pc, score_push_dummy_call,
score_fetch_inst): Update.
* sh64-tdep.c (look_for_args_moves, sh64_skip_prologue_hard_way,
sh64_analyze_prologue, sh64_push_dummy_call, sh64_extract_return_value,
sh64_pseudo_register_read, sh64_pseudo_register_write,
sh64_frame_prev_register): Update:
* sh-tdep.c (sh_analyze_prologue, sh_push_dummy_call_fpu,
sh_push_dummy_call_nofpu, sh_extract_return_value_nofpu,
sh_store_return_value_nofpu, sh_in_function_epilogue_p): Update.
* solib-darwin.c (darwin_load_image_infos): Update.
* solib-frv.c (fetch_loadmap, lm_base, frv_current_sos, enable_break2,
find_canonical_descriptor_in_load_object): Update.
* solib-irix.c (extract_mips_address, fetch_lm_info, irix_current_sos,
irix_open_symbol_file_object): Update.
* solib-som.c (som_solib_create_inferior_hook, link_map_start,
som_current_sos, som_open_symbol_file_object): Update.
* solib-sunos.c (SOLIB_EXTRACT_ADDRESS, LM_ADDR, LM_NEXT, LM_NAME):
Update.
* solib-svr4.c (read_program_header, scan_dyntag_auxv,
solib_svr4_r_ldsomap): Update.
* sparc64-linux-tdep.c (sparc64_linux_step_trap): Update.
* sparc64obsd-tdep.c (sparc64obsd_supply_uthread,
sparc64obsd_collect_uthread): Update.
* sparc64-tdep.c (sparc64_pseudo_register_read,
sparc64_pseudo_register_write, sparc64_supply_gregset,
sparc64_collect_gregset): Update.
* sparc-linux-tdep.c (sparc32_linux_step_trap): Update.
* sparcobsd-tdep.c (sparc32obsd_supply_uthread,
sparc32obsd_collect_uthread): Update.
* sparc-tdep.c (sparc_fetch_wcookie, sparc32_push_dummy_code,
sparc32_store_arguments, sparc32_return_value, sparc_supply_rwindow,
sparc_collect_rwindow): Update.
* spu-linux-nat.c (parse_spufs_run): Update.
* spu-tdep.c (spu_pseudo_register_read_spu,
spu_pseudo_register_write_spu, spu_pointer_to_address,
spu_analyze_prologue, spu_in_function_epilogue_p,
spu_frame_unwind_cache, spu_push_dummy_call, spu_software_single_step,
spu_get_longjmp_target, spu_get_overlay_table, spu_overlay_update_osect,
info_spu_signal_command, info_spu_mailbox_list, info_spu_dma_cmdlist,
info_spu_dma_command, info_spu_proxydma_command): Update.
* stack.c (print_frame_nameless_args, frame_info): Update.
* symfile.c (read_target_long_array, simple_read_overlay_table,
simple_read_overlay_region_table): Update.
* target.c (debug_print_register): Update.
* tramp-frame.c (tramp_frame_start): Update.
* v850-tdep.c (v850_analyze_prologue, v850_push_dummy_call,
v850_extract_return_value, v850_store_return_value,
* valarith.c (value_binop, value_bit_index): Update.
* valops.c (value_cast): Update.
* valprint.c (val_print_type_code_int, val_print_string,
read_string): Update.
* value.c (unpack_long, unpack_double, unpack_field_as_long,
modify_field, pack_long): Update.
* vax-tdep.c (vax_store_arguments, vax_push_dummy_call,
vax_skip_prologue): Update.
* xstormy16-tdep.c (xstormy16_push_dummy_call,
xstormy16_analyze_prologue, xstormy16_in_function_epilogue_p,
xstormy16_resolve_jmp_table_entry, xstormy16_find_jmp_table_entry,
xstormy16_pointer_to_address, xstormy16_address_to_pointer): Update.
* xtensa-tdep.c (extract_call_winsize, xtensa_pseudo_register_read,
xtensa_pseudo_register_write, xtensa_frame_cache,
xtensa_push_dummy_call, call0_track_op, call0_frame_cache): Update.
* dfp.h (decimal_to_string, decimal_from_string, decimal_from_integral,
decimal_from_floating, decimal_to_doublest, decimal_is_zero): Add
BYTE_ORDER parameter.
(decimal_binop): Add BYTE_ORDER_X, BYTE_ORDER_Y, and BYTE_ORDER_RESULT
parameters.
(decimal_compare): Add BYTE_ORDER_X and BYTE_ORDER_Y parameters.
(decimal_convert): Add BYTE_ORDER_FROM and BYTE_ORDER_TO parameters.
* dfp.c (match_endianness): Add BYTE_ORDER parameter. Use it
instead of current_gdbarch.
(decimal_to_string, decimal_from_integral, decimal_from_floating,
decimal_to_doublest, decimal_is_zero): Add BYTE_ORDER parameter.
Pass it to match_endianness.
(decimal_binop): Add BYTE_ORDER_X, BYTE_ORDER_Y, and BYTE_ORDER_RESULT
parameters. Pass them to match_endianness.
(decimal_compare): Add BYTE_ORDER_X and BYTE_ORDER_Y parameters.
Pass them to match_endianness.
(decimal_convert): Add BYTE_ORDER_FROM and BYTE_ORDER_TO parameters.
Pass them to match_endianness.
* valarith.c (value_args_as_decimal): Add BYTE_ORDER_X and
BYTE_ORDER_Y output parameters.
(value_binop): Update call to value_args_as_decimal.
Update calls to decimal_to_string, decimal_from_string,
decimal_from_integral, decimal_from_floating, decimal_to_doublest,
decimal_is_zero, decimal_binop, decimal_compare and decimal_convert
to pass/receive byte order:
* c-exp.y (parse_number): Update.
* printcmd.c (printf_command): Update.
* valarith.c (value_args_as_decimal, value_binop, value_logical_not,
value_equal, value_less): Update.
* valops.c (value_cast, value_one): Update.
* valprint.c (print_decimal_floating): Update.
* value.c (unpack_long, unpack_double): Update.
* python/python-value.c (valpy_nonzero): Update.
* ada-valprint.c (char_at): Add BYTE_ORDER parameter.
(printstr): Update calls to char_at.
(ada_val_print_array): Likewise.
* valprint.c (read_string): Add BYTE_ORDER parameter.
(val_print_string): Update call to read_string.
* c-lang.c (c_get_string): Likewise.
* charset.h (target_wide_charset): Add BYTE_ORDER parameter.
* charset.c (target_wide_charset): Add BYTE_ORDER parameter.
Use it instead of current_gdbarch.
* printcmd.c (printf_command): Update calls to target_wide_charset.
* c-lang.c (charset_for_string_type): Add BYTE_ORDER parameter.
Pass to target_wide_charset. Use it instead of current_gdbarch.
(classify_type): Add BYTE_ORDER parameter. Pass to
charset_for_string_type. Allow NULL encoding pointer.
(print_wchar): Add BYTE_ORDER parameter.
(c_emit_char): Update calls to classify_type and print_wchar.
(c_printchar, c_printstr): Likewise.
* gdbarch.sh (in_solib_return_trampoline): Convert to type "m".
* gdbarch.c, gdbarch.h: Regenerate.
* arch-utils.h (generic_in_solib_return_trampoline): Add GDBARCH
parameter.
* arch-utils.c (generic_in_solib_return_trampoline): Likewise.
* hppa-hpux-tdep.c (hppa_hpux_in_solib_return_trampoline): Likewise.
* rs6000-tdep.c (rs6000_in_solib_return_trampoline): Likewise.
(rs6000_skip_trampoline_code): Update call.
* alpha-tdep.h (struct gdbarch_tdep): Add GDBARCH parameter to
dynamic_sigtramp_offset and pc_in_sigtramp callbacks.
(alpha_read_insn): Add GDBARCH parameter.
* alpha-tdep.c (alpha_lds, alpha_sts): Add GDBARCH parameter.
(alpha_register_to_value): Pass architecture to alpha_sts.
(alpha_extract_return_value): Likewise.
(alpha_value_to_register): Pass architecture to alpha_lds.
(alpha_store_return_value): Likewise.
(alpha_read_insn): Add GDBARCH parameter.
(alpha_skip_prologue): Pass architecture to alpha_read_insn.
(alpha_heuristic_proc_start): Likewise.
(alpha_heuristic_frame_unwind_cache): Likewise.
(alpha_next_pc): Likewise.
(alpha_sigtramp_frame_this_id): Pass architecture to
tdep->dynamic_sigtramp_offset callback.
(alpha_sigtramp_frame_sniffer): Pass architecture to
tdep->pc_in_sigtramp callback.
* alphafbsd-tdep.c (alphafbsd_pc_in_sigtramp): Add GDBARCH parameter.
(alphafbsd_sigtramp_offset): Likewise.
* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): Add GDBARCH
parameter. Pass to alpha_read_insn.
(alpha_linux_sigtramp_offset): Add GDBARCH parameter. Pass to
alpha_linux_sigtramp_offset_1.
(alpha_linux_pc_in_sigtramp): Add GDBARCH parameter. Pass to
alpha_linux_sigtramp_offset.
(alpha_linux_sigcontext_addr): Pass architecture to alpha_read_insn
and alpha_linux_sigtramp_offset.
* alphanbsd-tdep.c (alphanbsd_sigtramp_offset): Add GDBARCH parameter.
(alphanbsd_pc_in_sigtramp): Add GDBARCH parameter. Pass to
alphanbsd_sigtramp_offset.
* alphaobsd-tdep.c (alphaobsd_sigtramp_offset): Add GDBARCH parameter.
(alphaobsd_pc_in_sigtramp): Add GDBARCH parameter. Pass to
alpha_read_insn.
(alphaobsd_sigcontext_addr): Pass architecture to
alphaobsd_sigtramp_offset.
* alpha-osf1-tdep.c (alpha_osf1_pc_in_sigtramp): Add GDBARCH
parameter.
* amd64-tdep.c (amd64_analyze_prologue): Add GDBARCH parameter.
(amd64_skip_prologue): Pass architecture to amd64_analyze_prologue.
(amd64_frame_cache): Likewise.
* arm-tdep.c (SWAP_SHORT, SWAP_INT): Remove.
(thumb_analyze_prologue, arm_skip_prologue, arm_scan_prologue,
thumb_get_next_pc, arm_get_next_pc): Do not use SWAP_ macros.
* arm-wince-tdep.c: Include "frame.h".
* avr-tdep.c (EXTRACT_INSN): Remove.
(avr_scan_prologue): Add GDBARCH argument, inline EXTRACT_INSN.
(avr_skip_prologue): Pass architecture to avr_scan_prologue.
(avr_frame_unwind_cache): Likewise.
* cris-tdep.c (struct instruction_environment): Add BYTE_ORDER member.
(find_step_target): Initialize it.
(get_data_from_address): Add BYTE_ORDER parameter.
(bdap_prefix): Pass byte order to get_data_from_address.
(handle_prefix_assign_mode_for_aritm_op): Likewise.
(three_operand_add_sub_cmp_and_or_op): Likewise.
(handle_inc_and_index_mode_for_aritm_op): Likewise.
* frv-linux-tdep.c (frv_linux_pc_in_sigtramp): Add GDBARCH parameter.
(frv_linux_sigcontext_reg_addr): Pass architecture to
frv_linux_pc_in_sigtramp.
(frv_linux_sigtramp_frame_sniffer): Likewise.
* h8300-tdep.c (h8300_is_argument_spill): Add GDBARCH parameter.
(h8300_analyze_prologue): Add GDBARCH parameter. Pass to
h8300_is_argument_spill.
(h8300_frame_cache, h8300_skip_prologue): Pass architecture
to h8300_analyze_prologue.
* hppa-tdep.h (struct gdbarch_tdep): Add GDBARCH parameter to
in_solib_call_trampoline callback.
(hppa_in_solib_call_trampoline): Add GDBARCH parameter.
* hppa-tdep.c (hppa64_convert_code_addr_to_fptr): Add GDBARCH
parameter.
(hppa64_push_dummy_call): Pass architecture to
hppa64_convert_code_addr_to_fptr.
(hppa_match_insns): Add GDBARCH parameter.
(hppa_match_insns_relaxed): Add GDBARCH parameter. Pass to
hppa_match_insns.
(hppa_skip_trampoline_code): Pass architecture to hppa_match_insns.
(hppa_in_solib_call_trampoline): Add GDBARCH parameter. Pass to
hppa_match_insns_relaxed.
(hppa_stub_unwind_sniffer): Pass architecture to
tdep->in_solib_call_trampoline callback.
* hppa-hpux-tdep.c (hppa_hpux_search_pattern): Add GDBARCH parameter.
(hppa32_hpux_search_dummy_call_sequence): Pass architecture to
hppa_hpux_search_pattern.
* hppa-linux-tdep.c (insns_match_pattern): Add GDBARCH parameter.
(hppa_linux_sigtramp_find_sigcontext): Add GDBARCH parameter.
Pass to insns_match_pattern.
(hppa_linux_sigtramp_frame_unwind_cache): Pass architecture to
hppa_linux_sigtramp_find_sigcontext.
(hppa_linux_sigtramp_frame_sniffer): Likewise.
(hppa32_hpux_in_solib_call_trampoline): Add GDBARCH parameter.
(hppa64_hpux_in_solib_call_trampoline): Likewise.
* i386-tdep.c (i386_follow_jump): Add GDBARCH parameter.
(i386_analyze_frame_setup): Add GDBARCH parameter.
(i386_analyze_prologue): Add GDBARCH parameter. Pass to
i386_follow_jump and i386_analyze_frame_setup.
(i386_skip_prologue): Pass architecture to i386_analyze_prologue
and i386_follow_jump.
(i386_frame_cache): Pass architecture to i386_analyze_prologue.
(i386_pe_skip_trampoline_code): Add FRAME parameter.
* i386-tdep.h (i386_pe_skip_trampoline_code): Add FRAME parameter.
* i386-cygwin-tdep.c (i386_cygwin_skip_trampoline_code): Pass
frame to i386_pe_skip_trampoline_code.
* ia64-tdep.h (struct gdbarch_tdep): Add GDBARCH parameter
to sigcontext_register_address callback.
* ia64-tdep.c (ia64_find_global_pointer): Add GDBARCH parameter.
(ia64_find_unwind_table): Pass architecture to
ia64_find_global_pointer.
(find_extant_func_descr): Add GDBARCH parameter.
(find_func_descr): Pass architecture to find_extant_func_descr
and ia64_find_global_pointer.
(ia64_sigtramp_frame_init_saved_regs): Pass architecture to
tdep->sigcontext_register_address callback.
* ia64-linux-tdep.c (ia64_linux_sigcontext_register_address): Add
GDBARCH parameter.
* iq2000-tdep.c (iq2000_scan_prologue): Add GDBARCH parameter.
(iq2000_frame_cache): Pass architecture to iq2000_scan_prologue.
* lm32-tdep.c (lm32_analyze_prologue): Add GDBARCH parameter.
(lm32_skip_prologue, lm32_frame_cache): Pass architecture to
lm32_analyze_prologue.
* m32r-tdep.c (decode_prologue): Add GDBARCH parameter.
(m32r_skip_prologue): Pass architecture to decode_prologue.
* m68hc11-tdep.c (m68hc11_analyze_instruction): Add GDBARCH parameter.
(m68hc11_scan_prologue): Pass architecture to
m68hc11_analyze_instruction.
* m68k-tdep.c (m68k_analyze_frame_setup): Add GDBARCH parameter.
(m68k_analyze_prologue): Pass architecture to
m68k_analyze_frame_setup.
* m88k-tdep.c (m88k_fetch_instruction): Add BYTE_ORDER parameter.
(m88k_analyze_prologue): Add GDBARCH parameter. Pass byte order
to m88k_fetch_instruction.
(m88k_skip_prologue): Pass architecture to m88k_analyze_prologue.
(m88k_frame_cache): Likewise.
* mep-tdep.c (mep_get_insn): Add GDBARCH parameter.
(mep_analyze_prologue): Pass architecture to mep_get_insn.
* mips-tdep.c (mips_fetch_instruction): Add GDBARCH parameter.
(mips32_next_pc): Pass architecture to mips_fetch_instruction.
(deal_with_atomic_sequence): Likewise.
(unpack_mips16): Add GDBARCH parameter, pass to mips_fetch_instruction.
(mips16_scan_prologue): Likewise.
(mips32_scan_prologue): Likewise.
(mips16_in_function_epilogue_p): Likewise.
(mips32_in_function_epilogue_p): Likewise.
(mips_about_to_return): Likewise.
(mips_insn16_frame_cache): Pass architecture to mips16_scan_prologue.
(mips_insn32_frame_cache): Pass architecture to mips32_scan_prologue.
(mips_skip_prologue): Pass architecture to mips16_scan_prologue
and mips32_scan_prologue.
(mips_in_function_epilogue_p): Pass architecture to
mips16_in_function_epilogue_p and
mips32_in_function_epilogue_p.
(heuristic_proc_start): Pass architecture to mips_fetch_instruction
and mips_about_to_return.
(mips_skip_mips16_trampoline_code): Pass architecture to
mips_fetch_instruction.
(fetch_mips_16): Add GDBARCH parameter.
(mips16_next_pc): Pass architecture to fetch_mips_16.
(extended_mips16_next_pc): Pass architecture to unpack_mips16 and
fetch_mips_16.
* objc-lang.c (read_objc_method, read_objc_methlist_nmethods,
read_objc_methlist_method, read_objc_object, read_objc_super,
read_objc_class): Add GDBARCH parameter.
(find_implementation_from_class): Add GDBARCH parameter, pass
to read_objc_class, read_objc_methlist_nmethods, and
read_objc_methlist_method.
(find_implementation): Add GDBARCH parameter, pass to
read_objc_object and find_implementation_from_class.
(resolve_msgsend, resolve_msgsend_stret): Pass architecture
to find_implementation.
(resolve_msgsend_super, resolve_msgsend_super_stret): Pass
architecture to read_objc_super and find_implementation_from_class.
* ppc64-linux-tdep.c (ppc64_desc_entry_point): Add GDBARCH parameter.
(ppc64_standard_linkage1_target, ppc64_standard_linkage2_target,
ppc64_standard_linkage3_target): Pass architecture to
ppc64_desc_entry_point.
* rs6000-tdep.c (bl_to_blrl_insn_p): Add BYTE_ORDER parameter.
(skip_prologue): Pass byte order to bl_to_blrl_insn_p.
(rs6000_fetch_instruction): Add GDBARCH parameter.
(rs6000_skip_stack_check): Add GDBARCH parameter, pass to
rs6000_fetch_instruction.
(skip_prologue): Pass architecture to rs6000_fetch_instruction.
* remote-mips.c (mips_store_word): Return old_contents as host
integer value instead of target bytes.
* s390-tdep.c (struct s390_prologue_data): Add BYTE_ORDER member.
(s390_analyze_prologue): Initialize it.
(extend_simple_arg): Add GDBARCH parameter.
(s390_push_dummy_call): Pass architecture to extend_simple_arg.
* scm-lang.c (scm_get_field): Add BYTE_ORDER parameter.
* scm-lang.h (scm_get_field): Add BYTE_ORDER parameter.
(SCM_CAR, SCM_CDR): Pass SCM_BYTE_ORDER to scm_get_field.
* scm-valprint.c (scm_scmval_print): Likewise.
(scm_scmlist_print, scm_ipruk, scm_scmval_print): Define
SCM_BYTE_ORDER.
* sh64-tdep.c (look_for_args_moves): Add GDBARCH parameter.
(sh64_skip_prologue_hard_way): Add GDBARCH parameter, pass to
look_for_args_moves.
(sh64_skip_prologue): Pass architecture to
sh64_skip_prologue_hard_way.
* sh-tdep.c (sh_analyze_prologue): Add GDBARCH parameter.
(sh_skip_prologue): Pass architecture to sh_analyze_prologue.
(sh_frame_cache): Likewise.
* solib-irix.c (extract_mips_address): Add GDBARCH parameter.
(fetch_lm_info, irix_current_sos, irix_open_symbol_file_object):
Pass architecture to extract_mips_address.
* sparc-tdep.h (sparc_fetch_wcookie): Add GDBARCH parameter.
* sparc-tdep.c (sparc_fetch_wcookie): Add GDBARCH parameter.
(sparc_supply_rwindow, sparc_collect_rwindow): Pass architecture
to sparc_fetch_wcookie.
(sparc32_frame_prev_register): Likewise.
* sparc64-tdep.c (sparc64_frame_prev_register): Likewise.
* sparc32nbsd-tdep.c (sparc32nbsd_sigcontext_saved_regs): Likewise.
* sparc64nbsd-tdep.c (sparc64nbsd_sigcontext_saved_regs): Likewise.
* spu-tdep.c (spu_analyze_prologue): Add GDBARCH parameter.
(spu_skip_prologue): Pass architecture to spu_analyze_prologue.
(spu_virtual_frame_pointer): Likewise.
(spu_frame_unwind_cache): Likewise.
(info_spu_mailbox_list): Add BYTE_ORER parameter.
(info_spu_mailbox_command): Pass byte order to info_spu_mailbox_list.
(info_spu_dma_cmdlist): Add BYTE_ORER parameter.
(info_spu_dma_command, info_spu_proxydma_command): Pass byte order
to info_spu_dma_cmdlist.
* symfile.c (read_target_long_array): Add GDBARCH parameter.
(simple_read_overlay_table, simple_read_overlay_region_table,
simple_overlay_update_1): Pass architecture to read_target_long_array.
* v850-tdep.c (v850_analyze_prologue): Add GDBARCH parameter.
(v850_frame_cache): Pass architecture to v850_analyze_prologue.
* xstormy16-tdep.c (xstormy16_analyze_prologue): Add GDBARCH
parameter.
(xstormy16_skip_prologue, xstormy16_frame_cache): Pass architecture
to xstormy16_analyze_prologue.
(xstormy16_resolve_jmp_table_entry): Add GDBARCH parameter.
(xstormy16_find_jmp_table_entry): Likewise.
(xstormy16_skip_trampoline_code): Pass architecture to
xstormy16_resolve_jmp_table_entry.
(xstormy16_pointer_to_address): Likewise.
(xstormy16_address_to_pointer): Pass architecture to
xstormy16_find_jmp_table_entry.
* xtensa-tdep.c (call0_track_op): Add GDBARCH parameter.
(call0_analyze_prologue): Add GDBARCH parameter, pass to
call0_track_op.
(call0_frame_cache): Pass architecture to call0_analyze_prologue.
(xtensa_skip_prologue): Likewise.
2009-07-02 19:25:59 +02:00
|
|
|
|
return extract_unsigned_integer (buf, len, byte_order);
|
2003-10-24 22:24:06 +02:00
|
|
|
|
}
|
|
|
|
|
|
target, breakpoint: allow insert/remove breakpoint to be forwarded
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* target.h (target_ops) <to_insert_breakpoint>
<to_remove_breakpoint>: Add target_ops parameter.
(forward_target_insert_breakpoint): New.
(forward_target_remove_breakpoint): New.
(memory_remove_breakpoint, memory_insert_breakpoint):
Add target_ops parameter.
* target.c (target_insert_breakpoint): Split into this and ...
(forward_target_insert_breakpoint): ... this.
(target_remove_breakpoint): Split into this and ...
(forward_target_remove_breakpoint): ... this.
(debug_to_insert_breakpoint): Add target_ops parameter.
Call forward_target_insert_breakpoint.
(debug_to_remove_breakpoint): Add target_ops parameter.
Call forward_target_remove_breakpoint.
(update_current_target): Do not inherit or default to_insert_breakpoint
and to_remove_breakpoint.
* corelow.c (ignore): Add target_ops parameter.
* exec.c (ignore): Add target_ops parameter.
* mem-break.c (memory_insert_breakpoint, memory_remove_breakpoint):
Add target_ops parameter.
* monitor.c (monitor_insert_breakpoint, monitor_remove_breakpoint):
Add target_ops parameter.
* nto-procfs.c (procfs_insert_breakpoint, procfs_remove_breakpoint):
Add target_ops parameter.
* record-full.c (record_full_beneath_to_insert_breakpoint)
(record_full_beneath_to_remove_breakpoint, tmp_to_insert_breakpoint)
(tmp_to_remove_breakpoint, record_full_insert_breakpoint)
(record_full_remove_breakpoint, record_full_core_insert_breakpoint)
(record_full_core_remove_breakpoint): Add target_ops parameter.
Update users.
(record_full_beneath_to_insert_breakpoint_ops)
(record_full_beneath_to_remove_breakpoint_ops)
(tmp_to_insert_breakpoint_ops, tmp_to_remove_breakpoint_ops): New.
(record_full_open): Initialize tmp_to_insert_breakpoint_ops,
tmp_to_remove_breakpoint_ops,
record_full_beneath_to_insert_breakpoint_ops, and
record_full_beneath_to_remove_breakpoint_ops.
* remote-m32r-sdi.c (m32r_insert_breakpoint)
(m32r_remove_breakpoint): Add target_ops parameter.
* remote-mips.c (mips_insert_breakpoint, mips_remove_breakpoint):
Add target_ops parameter.
* remote.c (remote_insert_breakpoint, remote_remove_breakpoint):
Add target_ops parameter.
2013-12-17 10:49:03 +01:00
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
2010-06-12 02:05:22 +02:00
|
|
|
|
int
|
|
|
|
|
target_insert_breakpoint (struct gdbarch *gdbarch,
|
|
|
|
|
struct bp_target_info *bp_tgt)
|
|
|
|
|
{
|
|
|
|
|
if (!may_insert_breakpoints)
|
|
|
|
|
{
|
|
|
|
|
warning (_("May not insert breakpoints"));
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
add target method delegation
This patch replaces some code in the record targets with target method
delegation.
record-full.c stores pointers to many target methods when the record
target is pushed. Then it later delegates some calls via these. This
is wrong because it violates the target stack contract. In particular
it is ok to unpush a target at any stratum, but record-full does not
keep track of this, so it could potentially call into an unpushed
target.
This patch fixes the problem by using the newly-introduced generic
approach to target delegation for the methods in question.
2014-02-19 Tom Tromey <tromey@redhat.com>
* record-full.c (record_full_beneath_to_resume_ops)
(record_full_beneath_to_resume, record_full_beneath_to_wait_ops)
(record_full_beneath_to_wait)
(record_full_beneath_to_store_registers_ops)
(record_full_beneath_to_store_registers)
(record_full_beneath_to_xfer_partial_ops)
(record_full_beneath_to_xfer_partial)
(record_full_beneath_to_insert_breakpoint_ops)
(record_full_beneath_to_insert_breakpoint)
(record_full_beneath_to_remove_breakpoint_ops)
(record_full_beneath_to_remove_breakpoint)
(record_full_beneath_to_stopped_by_watchpoint)
(record_full_beneath_to_stopped_data_address)
(record_full_beneath_to_async, tmp_to_resume_ops, tmp_to_resume)
(tmp_to_wait_ops, tmp_to_wait, tmp_to_store_registers_ops)
(tmp_to_store_registers, tmp_to_xfer_partial_ops)
(tmp_to_xfer_partial, tmp_to_instmp_to_insert_breakpoint_ops)
(tmp_to_insert_breakpoint, tmp_to_remove_breakpoint_ops)
(tmp_to_remove_breakpoint, tmp_to_stopped_by_watchpoint)
(tmp_to_stopped_data_address, tmp_to_async): Remove.
(record_full_open_1, record_full_open): Update. Use RECORD_IS_USED.
(record_full_resume, record_full_wait_1)
(record_full_stopped_by_watchpoint, record_full_stopped_data_address)
(record_full_store_registers, record_full_xfer_partial)
(record_full_insert_breakpoint, record_full_remove_breakpoint)
(record_full_async, record_full_core_xfer_partial): Use target
delegation.
* target-delegates.c: Rebuild.
* target.c (current_xfer_partial): Remove.
(update_current_target): Do not INHERIT or de_fault
to_insert_breakpoint, to_remove_breakpoint,
to_stopped_data_address, to_stopped_by_watchpoint, to_can_async_p,
to_is_async_p, to_async. Do not set to_xfer_partial field.
(default_xfer_partial): Simplify.
(current_xfer_partial): Remove.
(target_wait, target_resume): Simplify.
(find_default_can_async_p, find_default_is_async_p): Update.
(init_dummy_target): Don't set to_can_async_p, to_is_async_p,
to_xfer_partial, to_stopped_by_watchpoint,
to_stopped_data_address.
(target_store_registers): Simplify.
(forward_target_remove_breakpoint)
(forward_target_insert_breakpoint): Remove.
(target_remove_breakpoint, target_insert_breakpoint)
(debug_to_insert_breakpoint, debug_to_remove_breakpoint): Update.
* target.h (struct target_ops) <to_resume, to_wait,
to_store_registers, to_insert_breakpoint, to_remove_breakpoint,
to_stopped_by_watchpoint, to_stopped_data_address, to_can_async_p,
to_is_async_p, to_async, to_xfer_partial>: Add TARGET_DEFAULT
markup.
(forward_target_remove_breakpoint)
(forward_target_insert_breakpoint): Remove.
* record-btrace.c (record_btrace_remove_breakpoint): Delegate
directly.
(record_btrace_insert_breakpoint): Delegate directly.
2013-07-12 21:00:34 +02:00
|
|
|
|
return current_target.to_insert_breakpoint (¤t_target,
|
|
|
|
|
gdbarch, bp_tgt);
|
2010-06-12 02:05:22 +02:00
|
|
|
|
}
|
|
|
|
|
|
target, breakpoint: allow insert/remove breakpoint to be forwarded
2014-01-16 Markus Metzger <markus.t.metzger@intel.com>
* target.h (target_ops) <to_insert_breakpoint>
<to_remove_breakpoint>: Add target_ops parameter.
(forward_target_insert_breakpoint): New.
(forward_target_remove_breakpoint): New.
(memory_remove_breakpoint, memory_insert_breakpoint):
Add target_ops parameter.
* target.c (target_insert_breakpoint): Split into this and ...
(forward_target_insert_breakpoint): ... this.
(target_remove_breakpoint): Split into this and ...
(forward_target_remove_breakpoint): ... this.
(debug_to_insert_breakpoint): Add target_ops parameter.
Call forward_target_insert_breakpoint.
(debug_to_remove_breakpoint): Add target_ops parameter.
Call forward_target_remove_breakpoint.
(update_current_target): Do not inherit or default to_insert_breakpoint
and to_remove_breakpoint.
* corelow.c (ignore): Add target_ops parameter.
* exec.c (ignore): Add target_ops parameter.
* mem-break.c (memory_insert_breakpoint, memory_remove_breakpoint):
Add target_ops parameter.
* monitor.c (monitor_insert_breakpoint, monitor_remove_breakpoint):
Add target_ops parameter.
* nto-procfs.c (procfs_insert_breakpoint, procfs_remove_breakpoint):
Add target_ops parameter.
* record-full.c (record_full_beneath_to_insert_breakpoint)
(record_full_beneath_to_remove_breakpoint, tmp_to_insert_breakpoint)
(tmp_to_remove_breakpoint, record_full_insert_breakpoint)
(record_full_remove_breakpoint, record_full_core_insert_breakpoint)
(record_full_core_remove_breakpoint): Add target_ops parameter.
Update users.
(record_full_beneath_to_insert_breakpoint_ops)
(record_full_beneath_to_remove_breakpoint_ops)
(tmp_to_insert_breakpoint_ops, tmp_to_remove_breakpoint_ops): New.
(record_full_open): Initialize tmp_to_insert_breakpoint_ops,
tmp_to_remove_breakpoint_ops,
record_full_beneath_to_insert_breakpoint_ops, and
record_full_beneath_to_remove_breakpoint_ops.
* remote-m32r-sdi.c (m32r_insert_breakpoint)
(m32r_remove_breakpoint): Add target_ops parameter.
* remote-mips.c (mips_insert_breakpoint, mips_remove_breakpoint):
Add target_ops parameter.
* remote.c (remote_insert_breakpoint, remote_remove_breakpoint):
Add target_ops parameter.
2013-12-17 10:49:03 +01:00
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
2010-06-12 02:05:22 +02:00
|
|
|
|
int
|
add target method delegation
This patch replaces some code in the record targets with target method
delegation.
record-full.c stores pointers to many target methods when the record
target is pushed. Then it later delegates some calls via these. This
is wrong because it violates the target stack contract. In particular
it is ok to unpush a target at any stratum, but record-full does not
keep track of this, so it could potentially call into an unpushed
target.
This patch fixes the problem by using the newly-introduced generic
approach to target delegation for the methods in question.
2014-02-19 Tom Tromey <tromey@redhat.com>
* record-full.c (record_full_beneath_to_resume_ops)
(record_full_beneath_to_resume, record_full_beneath_to_wait_ops)
(record_full_beneath_to_wait)
(record_full_beneath_to_store_registers_ops)
(record_full_beneath_to_store_registers)
(record_full_beneath_to_xfer_partial_ops)
(record_full_beneath_to_xfer_partial)
(record_full_beneath_to_insert_breakpoint_ops)
(record_full_beneath_to_insert_breakpoint)
(record_full_beneath_to_remove_breakpoint_ops)
(record_full_beneath_to_remove_breakpoint)
(record_full_beneath_to_stopped_by_watchpoint)
(record_full_beneath_to_stopped_data_address)
(record_full_beneath_to_async, tmp_to_resume_ops, tmp_to_resume)
(tmp_to_wait_ops, tmp_to_wait, tmp_to_store_registers_ops)
(tmp_to_store_registers, tmp_to_xfer_partial_ops)
(tmp_to_xfer_partial, tmp_to_instmp_to_insert_breakpoint_ops)
(tmp_to_insert_breakpoint, tmp_to_remove_breakpoint_ops)
(tmp_to_remove_breakpoint, tmp_to_stopped_by_watchpoint)
(tmp_to_stopped_data_address, tmp_to_async): Remove.
(record_full_open_1, record_full_open): Update. Use RECORD_IS_USED.
(record_full_resume, record_full_wait_1)
(record_full_stopped_by_watchpoint, record_full_stopped_data_address)
(record_full_store_registers, record_full_xfer_partial)
(record_full_insert_breakpoint, record_full_remove_breakpoint)
(record_full_async, record_full_core_xfer_partial): Use target
delegation.
* target-delegates.c: Rebuild.
* target.c (current_xfer_partial): Remove.
(update_current_target): Do not INHERIT or de_fault
to_insert_breakpoint, to_remove_breakpoint,
to_stopped_data_address, to_stopped_by_watchpoint, to_can_async_p,
to_is_async_p, to_async. Do not set to_xfer_partial field.
(default_xfer_partial): Simplify.
(current_xfer_partial): Remove.
(target_wait, target_resume): Simplify.
(find_default_can_async_p, find_default_is_async_p): Update.
(init_dummy_target): Don't set to_can_async_p, to_is_async_p,
to_xfer_partial, to_stopped_by_watchpoint,
to_stopped_data_address.
(target_store_registers): Simplify.
(forward_target_remove_breakpoint)
(forward_target_insert_breakpoint): Remove.
(target_remove_breakpoint, target_insert_breakpoint)
(debug_to_insert_breakpoint, debug_to_remove_breakpoint): Update.
* target.h (struct target_ops) <to_resume, to_wait,
to_store_registers, to_insert_breakpoint, to_remove_breakpoint,
to_stopped_by_watchpoint, to_stopped_data_address, to_can_async_p,
to_is_async_p, to_async, to_xfer_partial>: Add TARGET_DEFAULT
markup.
(forward_target_remove_breakpoint)
(forward_target_insert_breakpoint): Remove.
* record-btrace.c (record_btrace_remove_breakpoint): Delegate
directly.
(record_btrace_insert_breakpoint): Delegate directly.
2013-07-12 21:00:34 +02:00
|
|
|
|
target_remove_breakpoint (struct gdbarch *gdbarch,
|
|
|
|
|
struct bp_target_info *bp_tgt)
|
2010-06-12 02:05:22 +02:00
|
|
|
|
{
|
|
|
|
|
/* This is kind of a weird case to handle, but the permission might
|
|
|
|
|
have been changed after breakpoints were inserted - in which case
|
|
|
|
|
we should just take the user literally and assume that any
|
|
|
|
|
breakpoints should be left in place. */
|
|
|
|
|
if (!may_insert_breakpoints)
|
|
|
|
|
{
|
|
|
|
|
warning (_("May not remove breakpoints"));
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
add target method delegation
This patch replaces some code in the record targets with target method
delegation.
record-full.c stores pointers to many target methods when the record
target is pushed. Then it later delegates some calls via these. This
is wrong because it violates the target stack contract. In particular
it is ok to unpush a target at any stratum, but record-full does not
keep track of this, so it could potentially call into an unpushed
target.
This patch fixes the problem by using the newly-introduced generic
approach to target delegation for the methods in question.
2014-02-19 Tom Tromey <tromey@redhat.com>
* record-full.c (record_full_beneath_to_resume_ops)
(record_full_beneath_to_resume, record_full_beneath_to_wait_ops)
(record_full_beneath_to_wait)
(record_full_beneath_to_store_registers_ops)
(record_full_beneath_to_store_registers)
(record_full_beneath_to_xfer_partial_ops)
(record_full_beneath_to_xfer_partial)
(record_full_beneath_to_insert_breakpoint_ops)
(record_full_beneath_to_insert_breakpoint)
(record_full_beneath_to_remove_breakpoint_ops)
(record_full_beneath_to_remove_breakpoint)
(record_full_beneath_to_stopped_by_watchpoint)
(record_full_beneath_to_stopped_data_address)
(record_full_beneath_to_async, tmp_to_resume_ops, tmp_to_resume)
(tmp_to_wait_ops, tmp_to_wait, tmp_to_store_registers_ops)
(tmp_to_store_registers, tmp_to_xfer_partial_ops)
(tmp_to_xfer_partial, tmp_to_instmp_to_insert_breakpoint_ops)
(tmp_to_insert_breakpoint, tmp_to_remove_breakpoint_ops)
(tmp_to_remove_breakpoint, tmp_to_stopped_by_watchpoint)
(tmp_to_stopped_data_address, tmp_to_async): Remove.
(record_full_open_1, record_full_open): Update. Use RECORD_IS_USED.
(record_full_resume, record_full_wait_1)
(record_full_stopped_by_watchpoint, record_full_stopped_data_address)
(record_full_store_registers, record_full_xfer_partial)
(record_full_insert_breakpoint, record_full_remove_breakpoint)
(record_full_async, record_full_core_xfer_partial): Use target
delegation.
* target-delegates.c: Rebuild.
* target.c (current_xfer_partial): Remove.
(update_current_target): Do not INHERIT or de_fault
to_insert_breakpoint, to_remove_breakpoint,
to_stopped_data_address, to_stopped_by_watchpoint, to_can_async_p,
to_is_async_p, to_async. Do not set to_xfer_partial field.
(default_xfer_partial): Simplify.
(current_xfer_partial): Remove.
(target_wait, target_resume): Simplify.
(find_default_can_async_p, find_default_is_async_p): Update.
(init_dummy_target): Don't set to_can_async_p, to_is_async_p,
to_xfer_partial, to_stopped_by_watchpoint,
to_stopped_data_address.
(target_store_registers): Simplify.
(forward_target_remove_breakpoint)
(forward_target_insert_breakpoint): Remove.
(target_remove_breakpoint, target_insert_breakpoint)
(debug_to_insert_breakpoint, debug_to_remove_breakpoint): Update.
* target.h (struct target_ops) <to_resume, to_wait,
to_store_registers, to_insert_breakpoint, to_remove_breakpoint,
to_stopped_by_watchpoint, to_stopped_data_address, to_can_async_p,
to_is_async_p, to_async, to_xfer_partial>: Add TARGET_DEFAULT
markup.
(forward_target_remove_breakpoint)
(forward_target_insert_breakpoint): Remove.
* record-btrace.c (record_btrace_remove_breakpoint): Delegate
directly.
(record_btrace_insert_breakpoint): Delegate directly.
2013-07-12 21:00:34 +02:00
|
|
|
|
return current_target.to_remove_breakpoint (¤t_target,
|
|
|
|
|
gdbarch, bp_tgt);
|
2010-06-12 02:05:22 +02:00
|
|
|
|
}
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
static void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
target_info (char *args, int from_tty)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
int has_all_mem = 0;
|
1999-07-07 22:19:36 +02:00
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
if (symfile_objfile != NULL)
|
Code cleanup: Add objfile_name accessor
gdb/
2013-09-24 Jan Kratochvil <jan.kratochvil@redhat.com>
Code cleanup: Add objfile_name accessor function.
* ada-lang.c (is_known_support_routine): Use objfile_name.
* auto-load.c (source_gdb_script_for_objfile)
(auto_load_objfile_script): Likewise.
* coffread.c (coff_symtab_read, read_one_sym): Likewise.
* dbxread.c (dbx_symfile_read): Likewise.
* dwarf2-frame.c (dwarf2_build_frame_info): Likewise.
* dwarf2loc.c (locexpr_describe_location_piece): Likewise.
* dwarf2read.c (dwarf2_get_dwz_file, dwarf2_read_index)
(dw2_symtab_iter_next, dw2_expand_symtabs_matching)
(lookup_dwp_signatured_type, lookup_dwo_unit)
(dwarf2_build_psymtabs_hard, scan_partial_symbols, process_queue)
(fixup_go_packaging, process_imported_unit_die, dwarf2_physname)
(read_import_statement, create_dwo_cu, open_and_init_dwp_file)
(lookup_dwo_cutu, read_call_site_scope, dwarf2_ranges_read)
(dwarf2_record_block_ranges, read_common_block, read_typedef)
(read_subrange_type, load_partial_dies, read_partial_die)
(read_addr_index_1, read_str_index, dwarf_decode_lines_1)
(die_containing_type, build_error_marker_type, lookup_die_type)
(follow_die_ref_or_sig, follow_die_ref, dwarf2_fetch_die_loc_sect_off)
(dwarf2_fetch_constant_bytes, follow_die_sig, get_signatured_type)
(get_DW_AT_signature_type, write_psymtabs_to_index)
(save_gdb_index_command): Likewise.
* elfread.c (find_separate_debug_file_by_buildid, elf_symfile_read):
Likewise.
* expprint.c (dump_subexp_body_standard): Likewise.
* gdbtypes.c (type_name_no_tag_or_error): Likewise.
* jit.c (jit_object_close_impl): Use the objfile field name renamed to
original_name.
* linux-thread-db.c (try_thread_db_load_from_pdir_1): New variable
obj_name, use objfile_name for it, use the variable.
(try_thread_db_load_from_pdir, has_libpthread, thread_db_new_objfile):
Use objfile_name.
* machoread.c (macho_symtab_read, macho_check_dsym)
(macho_symfile_relocate): Likewise.
* maint.c (maintenance_translate_address): Likewise.
* minidebug.c (find_separate_debug_file_in_section): Likewise.
* minsyms.c (install_minimal_symbols): Likewise.
* objfiles.c (allocate_objfile): Use the objfile field name renamed to
original_name.
(filter_overlapping_sections): Use objfile_name.
(objfile_name): New function.
* objfiles.h (struct objfile): Rename field name to original_name.
(objfile_name): New prototype.
* printcmd.c (sym_info, address_info): Use objfile_name.
* probe.c (parse_probes, collect_probes, compare_probes)
(info_probes_for_ops): Likewise.
* progspace.c (clone_program_space): Likewise.
* psymtab.c (require_partial_symbols, dump_psymtab, allocate_psymtab)
(maintenance_info_psymtabs): Likewise.
* python/py-auto-load.c (gdbpy_load_auto_script_for_objfile)
(source_section_scripts): Likewise.
* python/py-objfile.c (objfpy_get_filename): Likewise.
* python/py-progspace.c (pspy_get_filename): Likewise.
* solib-aix.c (solib_aix_get_toc_value): Likewise.
* solib-som.c (match_main, som_solib_section_offsets): Likewise.
* solib.c (solib_read_symbols): Likewise.
* stabsread.c (scan_file_globals): Likewise.
* stap-probe.c (handle_stap_probe): Likewise.
* symfile.c (symbol_file_clear, separate_debug_file_exists)
(find_separate_debug_file_by_debuglink): Likewise.
(reread_symbols): Likewise. Use the objfile field name renamed to
original_name.
(allocate_symtab): Use objfile_name.
* symmisc.c (print_symbol_bcache_statistics, print_objfile_statistics)
(dump_objfile, dump_msymbols, dump_symtab_1)
(maintenance_print_msymbols, maintenance_print_objfiles)
(maintenance_info_symtabs, maintenance_check_symtabs): Likewise.
* target.c (target_translate_tls_address, target_info): Likewise.
* xcoffread.c (xcoff_initial_scan): Make variable name const. Use
objfile_name.
2013-09-24 15:57:38 +02:00
|
|
|
|
printf_unfiltered (_("Symbols from \"%s\".\n"),
|
|
|
|
|
objfile_name (symfile_objfile));
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2003-10-17 15:59:27 +02:00
|
|
|
|
for (t = target_stack; t != NULL; t = t->beneath)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
* target.h (struct target_ops): Make to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
methods instead of variables.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1)
(target_has_registers_1, target_has_execution_1): Declare
functions.
(target_has_all_memory): Rewrite to call target_has_all_memory_1.
(target_has_memory): Rewrite to call target_has_memory_1.
(target_has_stack): Rewrite to call target_has_all_stack_1.
(target_has_registers): Rewrite to call target_has_registers_1.
(target_has_execution): Rewrite to call target_has_execution_1.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Declare.
(target_mark_running, target_mark_exited): Delete declarations.
* target.c (default_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution): New.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1,
target_has_registers_1, target_has_execution_1): New.
(add_target): Default the to_has_all_memory, to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
callbacks to return 0.
(update_current_target): Do not inherit to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers or to_has_execution.
(target_mark_running, target_mark_exited): Delete.
(memory_xfer_partial): Adjust.
(target_read_memory, target_write_memory, target_search_memory):
Dispatch to the the top-most target, not the flattened
current_target.
(target_info): Adjust.
(init_dummy_target): Install return_zero as callback for
to_has_all_memory, to_has_memory, to_has_stack, to_has_registers,
to_has_execution.
(set_maintenance_target_async_permitted): Use have_live_inferiors
instead of target_has_execution.
* target-memory.c (target_write_memory_blocks): Dispatch memory
writes to the the top-most target, not the flattened
current_target.
* breakpoint.c (insert_breakpoints): Don't check for
target_has_execution here.
(update_global_location_list): Check if there are live inferiors
to debug instead of target_has_execution.
* infcmd.c (kill_command, detach_command): Check if there are
inferiors instead of target_has_execution.
* inferior.h (have_live_inferiors): Declare.
* inferior.c (have_live_inferiors): New.
* infrun.c (normal_stop): Don't check for target_has_execution to
finish the thread states.
* thread.c (is_thread_state, is_stopped, is_exited, is_running)
(any_running, is_executing): Remove checks for
target_has_execution.
* top.c (kill_or_detach): Don't try to kill core inferiors.
(quit_target): Don't check for target_has_execution.
* corelow.c (core_has_memory, core_has_stack, core_has_registers):
New.
(init_core_ops): Install core_has_memory, core_has_stack and
core_has_registers.
* exec.c (exec_has_memory): New.
(init_exec_ops): Install exec_has_memory.
* remote.c (remote_add_inferior): Don't call target_mark_running.
(remote_start_remote): Don't call target_mark_exited or call
target_mark_running.
(remote_open_1): Use have_inferiors instead of
target_has_execution. Don't use target_mark_exited.
(init_remote_ops): Install deafult_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution.
* bsd-kvm.c (bsd_kvm_return_one): New.
(bsd_kvm_add_target): Register bsd_kvm_return_one as
to_has_memory, to_has_stack and to_has_registers callbacks.
* remote-m32r-sdi.c (m32r_return_one): New.
(init_m32r_ops): Register it.
* inf-child.c (inf_child_target): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* gnu-nat.c (init_gnu_ops): Likewise.
* go32-nat.c (init_go32_ops): Likewise.
* hpux-thread.c (init_hpux_thread_ops): Likewise.
* monitor.c (init_base_monitor_ops): Likewise.
* nto-procfs.c (init_procfs_ops): Likewise.
* remote-mips.c (_initialize_remote_mips): Likewise.
* windows-nat.c (init_windows_ops): Likewise.
* remote-sim.c (gdbsim_create_inferior): Don't use
target_mark_running or target_mark_exited.
(gdbsim_mourn_inferior): Don't call target_mark_exited.
(init_gdbsim_ops): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* linux-nat.c (linux_nat_xfer_partial): If reading memory, and
there's no inferior selected, defer to a lower stratum.
2009-06-07 18:46:48 +02:00
|
|
|
|
if (!(*t->to_has_memory) (t))
|
1999-04-16 03:35:26 +02:00
|
|
|
|
continue;
|
|
|
|
|
|
1999-07-07 22:19:36 +02:00
|
|
|
|
if ((int) (t->to_stratum) <= (int) dummy_stratum)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
continue;
|
|
|
|
|
if (has_all_mem)
|
2011-01-05 23:22:53 +01:00
|
|
|
|
printf_unfiltered (_("\tWhile running this, "
|
|
|
|
|
"GDB does not access memory from...\n"));
|
1999-07-07 22:19:36 +02:00
|
|
|
|
printf_unfiltered ("%s:\n", t->to_longname);
|
|
|
|
|
(t->to_files_info) (t);
|
* target.h (struct target_ops): Make to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
methods instead of variables.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1)
(target_has_registers_1, target_has_execution_1): Declare
functions.
(target_has_all_memory): Rewrite to call target_has_all_memory_1.
(target_has_memory): Rewrite to call target_has_memory_1.
(target_has_stack): Rewrite to call target_has_all_stack_1.
(target_has_registers): Rewrite to call target_has_registers_1.
(target_has_execution): Rewrite to call target_has_execution_1.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Declare.
(target_mark_running, target_mark_exited): Delete declarations.
* target.c (default_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution): New.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1,
target_has_registers_1, target_has_execution_1): New.
(add_target): Default the to_has_all_memory, to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
callbacks to return 0.
(update_current_target): Do not inherit to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers or to_has_execution.
(target_mark_running, target_mark_exited): Delete.
(memory_xfer_partial): Adjust.
(target_read_memory, target_write_memory, target_search_memory):
Dispatch to the the top-most target, not the flattened
current_target.
(target_info): Adjust.
(init_dummy_target): Install return_zero as callback for
to_has_all_memory, to_has_memory, to_has_stack, to_has_registers,
to_has_execution.
(set_maintenance_target_async_permitted): Use have_live_inferiors
instead of target_has_execution.
* target-memory.c (target_write_memory_blocks): Dispatch memory
writes to the the top-most target, not the flattened
current_target.
* breakpoint.c (insert_breakpoints): Don't check for
target_has_execution here.
(update_global_location_list): Check if there are live inferiors
to debug instead of target_has_execution.
* infcmd.c (kill_command, detach_command): Check if there are
inferiors instead of target_has_execution.
* inferior.h (have_live_inferiors): Declare.
* inferior.c (have_live_inferiors): New.
* infrun.c (normal_stop): Don't check for target_has_execution to
finish the thread states.
* thread.c (is_thread_state, is_stopped, is_exited, is_running)
(any_running, is_executing): Remove checks for
target_has_execution.
* top.c (kill_or_detach): Don't try to kill core inferiors.
(quit_target): Don't check for target_has_execution.
* corelow.c (core_has_memory, core_has_stack, core_has_registers):
New.
(init_core_ops): Install core_has_memory, core_has_stack and
core_has_registers.
* exec.c (exec_has_memory): New.
(init_exec_ops): Install exec_has_memory.
* remote.c (remote_add_inferior): Don't call target_mark_running.
(remote_start_remote): Don't call target_mark_exited or call
target_mark_running.
(remote_open_1): Use have_inferiors instead of
target_has_execution. Don't use target_mark_exited.
(init_remote_ops): Install deafult_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution.
* bsd-kvm.c (bsd_kvm_return_one): New.
(bsd_kvm_add_target): Register bsd_kvm_return_one as
to_has_memory, to_has_stack and to_has_registers callbacks.
* remote-m32r-sdi.c (m32r_return_one): New.
(init_m32r_ops): Register it.
* inf-child.c (inf_child_target): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* gnu-nat.c (init_gnu_ops): Likewise.
* go32-nat.c (init_go32_ops): Likewise.
* hpux-thread.c (init_hpux_thread_ops): Likewise.
* monitor.c (init_base_monitor_ops): Likewise.
* nto-procfs.c (init_procfs_ops): Likewise.
* remote-mips.c (_initialize_remote_mips): Likewise.
* windows-nat.c (init_windows_ops): Likewise.
* remote-sim.c (gdbsim_create_inferior): Don't use
target_mark_running or target_mark_exited.
(gdbsim_mourn_inferior): Don't call target_mark_exited.
(init_gdbsim_ops): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* linux-nat.c (linux_nat_xfer_partial): If reading memory, and
there's no inferior selected, defer to a lower stratum.
2009-06-07 18:46:48 +02:00
|
|
|
|
has_all_mem = (*t->to_has_all_memory) (t);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
gdb/
2006-09-21 Vladimir Prus <vladimir@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
Nathan Sidwell <nathan@codesourcery.com>
* Makefile.in (SFILES): Add memory-map.c and xml-support.c.
(memory_map_h, xml_support_h): New.
(target_h): Add vec_h dependency.
(COMMON_OBS): Add memory-map.o and xml-support.o.
(memory-map.o, xml-support.o): New rules.
(remote.o): Update.
* exceptions.h (enum errors): Add XML_PARSE_ERROR.
* infcmd.c (run_command_1, attach_command): Call target_pre_inferior.
* memattr.c (default_mem_attrib): Initialize blocksize.
(target_mem_region_list, mem_use_target)
(target_mem_regions_valid, mem_region_cmp, mem_region_init)
(require_user_regions, require_target_regions)
(invalidate_target_mem_regions): New.
(create_mem_region): Use mem_region_init.
(mem_clear): Move higher.
(lookup_mem_region): Use require_target_regions.
(mem_command): Implement "mem auto".
(mem_info_command): Handle target-supplied regions and flash
attributes.
(mem_enable_command, mem_disable_command, mem_delete_command): Use
require_user_regions.
(_initialize_mem): Mention "mem auto" in help.
* memattr.h (enum mem_access_mode): Add MEM_FLASH.
(struct mem_attrib): Add blocksize.
(invalidate_target_mem_regions, mem_region_init, mem_region_cmp): New
prototypes.
* remote.c: Include "memory-map.h".
(PACKET_qXfer_memory_map): New enum value.
(remote_protocol_features): Add qXfer:memory-map:read.
(remote_xfer_partial): Handle memory maps.
(remote_memory_map): New.
(init_remote_ops, init_remote_async_ops): Set to_memory_map.
(_initialize_remote): Register qXfer:memory-map:read.
* target.c (update_current_target): Mention to_memory_map.
(target_memory_map, target_pre_inferior): New.
(target_preopen): Call target_pre_inferior.
* target.h: Include "vec.h".
(enum target_object): Add TARGET_OBJECT_MEMORY_MAP.
(struct target_ops): Add to_memory_map.
(target_memory_map, target_pre_inferior): New prototypes.
* memory-map.c, memory-map.h, xml-support.c, xml-support.h: New files.
gdb/doc/
2006-09-21 Vladimir Prus <vladimir@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* gdb.texinfo (Memory Region Attributes): Mention target-supplied
memory regions and "mem auto".
2006-09-21 15:54:03 +02:00
|
|
|
|
/* This function is called before any new inferior is created, e.g.
|
|
|
|
|
by running a program, attaching, or connecting to a target.
|
|
|
|
|
It cleans up any state from previous invocations which might
|
|
|
|
|
change between runs. This is a subset of what target_preopen
|
|
|
|
|
resets (things which might change between targets). */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_pre_inferior (int from_tty)
|
|
|
|
|
{
|
2011-01-11 22:53:25 +01:00
|
|
|
|
/* Clear out solib state. Otherwise the solib state of the previous
|
2008-08-09 14:15:10 +02:00
|
|
|
|
inferior might have survived and is entirely wrong for the new
|
2011-01-11 22:53:25 +01:00
|
|
|
|
target. This has been observed on GNU/Linux using glibc 2.3. How
|
2008-08-09 14:15:10 +02:00
|
|
|
|
to reproduce:
|
|
|
|
|
|
|
|
|
|
bash$ ./foo&
|
|
|
|
|
[1] 4711
|
|
|
|
|
bash$ ./foo&
|
|
|
|
|
[1] 4712
|
|
|
|
|
bash$ gdb ./foo
|
|
|
|
|
[...]
|
|
|
|
|
(gdb) attach 4711
|
|
|
|
|
(gdb) detach
|
|
|
|
|
(gdb) attach 4712
|
|
|
|
|
Cannot access memory at address 0xdeadbeef
|
|
|
|
|
*/
|
|
|
|
|
|
* remote.c (remote_start_remote): If the solib list is global,
fetch libraries and insert breakpoints after connecting.
* infcmd.c (post_create_inferior): If the solist is shared between
inferiors, no need to refetch it on every new inferior.
(detach_command): If the shared library list is shared between
inferiors, then don't clear it on every inferior detach.
* gdbarch.sh (has_global_solist): New.
* i386-dicos-tdep.c (i386_dicos_init_abi): Set
gdbarch_has_global_solist.
* target.c (target_pre_inferior): If the shared library list is
shared between inferiors, then don't clear it here, neither
invalidate the memory regions or clear the target description.
(target_detach): If the shared library list is shared between
inferiors, then don't remove breakpoints from the target here.
(target_disconnect): Comment.
* solib.c (update_solib_list): Check for null_ptid.
* breakpoint.c (insert_breakpoints, update_global_location_list):
If the shared library list is shared between inferiors, insert
breakpoints even if there's no execution.
(breakpoint_init_inferior): If the shared library list is shared
between inferiors, don't delete breakpoints or mark them
uninserted here.
* gdbarch.c, gdbarch.h: Regenerate.
2008-11-03 15:01:27 +01:00
|
|
|
|
/* In some OSs, the shared library list is the same/global/shared
|
|
|
|
|
across inferiors. If code is shared between processes, so are
|
|
|
|
|
memory regions and features. */
|
* gdbarch.sh (target_gdbarch): Remove macro.
(get_target_gdbarch): Rename to target_gdbarch.
* gdbarch.c, gdbarch.h: Rebuild.
* ada-tasks.c, aix-thread.c, amd64-linux-nat.c, arch-utils.c,
arm-tdep.c, auxv.c, breakpoint.c, bsd-uthread.c, corefile.c,
darwin-nat-info.c, dcache.c, dsrec.c, exec.c, fbsd-nat.c,
filesystem.c, gcore.c, gnu-nat.c, i386-darwin-nat.c, i386-nat.c,
ia64-vms-tdep.c, inf-ptrace.c, infcmd.c, jit.c, linux-nat.c,
linux-tdep.c, linux-thread-db.c, m32r-rom.c, memattr.c,
mep-tdep.c, microblaze-tdep.c, mips-linux-nat.c,
mips-linux-tdep.c, mips-tdep.c, monitor.c, moxie-tdep.c,
nto-procfs.c, nto-tdep.c, ppc-linux-nat.c, proc-service.c,
procfs.c, progspace.c, ravenscar-thread.c, record.c,
remote-m32r-sdi.c, remote-mips.c, remote-sim.c, remote.c,
rl78-tdep.c, rs6000-nat.c, rx-tdep.c, s390-nat.c, sol-thread.c,
solib-darwin.c, solib-dsbt.c, solib-frv.c, solib-ia64-hpux.c,
solib-irix.c, solib-pa64.c, solib-som.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, solib.c, spu-linux-nat.c,
spu-multiarch.c, spu-tdep.c, symfile-mem.c, symfile.c, symtab.c,
target-descriptions.c, target.c, target.h, tracepoint.c,
windows-nat.c, windows-tdep.c, xcoffsolib.c, cli/cli-dump.c,
common/agent.c, mi/mi-interp.c, python/py-finishbreakpoint.c,
python/py-inferior.c, python/python.c: Update.
2012-11-09 20:58:03 +01:00
|
|
|
|
if (!gdbarch_has_global_solist (target_gdbarch ()))
|
* remote.c (remote_start_remote): If the solib list is global,
fetch libraries and insert breakpoints after connecting.
* infcmd.c (post_create_inferior): If the solist is shared between
inferiors, no need to refetch it on every new inferior.
(detach_command): If the shared library list is shared between
inferiors, then don't clear it on every inferior detach.
* gdbarch.sh (has_global_solist): New.
* i386-dicos-tdep.c (i386_dicos_init_abi): Set
gdbarch_has_global_solist.
* target.c (target_pre_inferior): If the shared library list is
shared between inferiors, then don't clear it here, neither
invalidate the memory regions or clear the target description.
(target_detach): If the shared library list is shared between
inferiors, then don't remove breakpoints from the target here.
(target_disconnect): Comment.
* solib.c (update_solib_list): Check for null_ptid.
* breakpoint.c (insert_breakpoints, update_global_location_list):
If the shared library list is shared between inferiors, insert
breakpoints even if there's no execution.
(breakpoint_init_inferior): If the shared library list is shared
between inferiors, don't delete breakpoints or mark them
uninserted here.
* gdbarch.c, gdbarch.h: Regenerate.
2008-11-03 15:01:27 +01:00
|
|
|
|
{
|
|
|
|
|
no_shared_libraries (NULL, from_tty);
|
|
|
|
|
|
|
|
|
|
invalidate_target_mem_regions ();
|
2006-11-28 23:10:26 +01:00
|
|
|
|
|
* remote.c (remote_start_remote): If the solib list is global,
fetch libraries and insert breakpoints after connecting.
* infcmd.c (post_create_inferior): If the solist is shared between
inferiors, no need to refetch it on every new inferior.
(detach_command): If the shared library list is shared between
inferiors, then don't clear it on every inferior detach.
* gdbarch.sh (has_global_solist): New.
* i386-dicos-tdep.c (i386_dicos_init_abi): Set
gdbarch_has_global_solist.
* target.c (target_pre_inferior): If the shared library list is
shared between inferiors, then don't clear it here, neither
invalidate the memory regions or clear the target description.
(target_detach): If the shared library list is shared between
inferiors, then don't remove breakpoints from the target here.
(target_disconnect): Comment.
* solib.c (update_solib_list): Check for null_ptid.
* breakpoint.c (insert_breakpoints, update_global_location_list):
If the shared library list is shared between inferiors, insert
breakpoints even if there's no execution.
(breakpoint_init_inferior): If the shared library list is shared
between inferiors, don't delete breakpoints or mark them
uninserted here.
* gdbarch.c, gdbarch.h: Regenerate.
2008-11-03 15:01:27 +01:00
|
|
|
|
target_clear_description ();
|
|
|
|
|
}
|
2012-03-03 05:04:35 +01:00
|
|
|
|
|
|
|
|
|
agent_capability_invalidate ();
|
gdb/
2006-09-21 Vladimir Prus <vladimir@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
Nathan Sidwell <nathan@codesourcery.com>
* Makefile.in (SFILES): Add memory-map.c and xml-support.c.
(memory_map_h, xml_support_h): New.
(target_h): Add vec_h dependency.
(COMMON_OBS): Add memory-map.o and xml-support.o.
(memory-map.o, xml-support.o): New rules.
(remote.o): Update.
* exceptions.h (enum errors): Add XML_PARSE_ERROR.
* infcmd.c (run_command_1, attach_command): Call target_pre_inferior.
* memattr.c (default_mem_attrib): Initialize blocksize.
(target_mem_region_list, mem_use_target)
(target_mem_regions_valid, mem_region_cmp, mem_region_init)
(require_user_regions, require_target_regions)
(invalidate_target_mem_regions): New.
(create_mem_region): Use mem_region_init.
(mem_clear): Move higher.
(lookup_mem_region): Use require_target_regions.
(mem_command): Implement "mem auto".
(mem_info_command): Handle target-supplied regions and flash
attributes.
(mem_enable_command, mem_disable_command, mem_delete_command): Use
require_user_regions.
(_initialize_mem): Mention "mem auto" in help.
* memattr.h (enum mem_access_mode): Add MEM_FLASH.
(struct mem_attrib): Add blocksize.
(invalidate_target_mem_regions, mem_region_init, mem_region_cmp): New
prototypes.
* remote.c: Include "memory-map.h".
(PACKET_qXfer_memory_map): New enum value.
(remote_protocol_features): Add qXfer:memory-map:read.
(remote_xfer_partial): Handle memory maps.
(remote_memory_map): New.
(init_remote_ops, init_remote_async_ops): Set to_memory_map.
(_initialize_remote): Register qXfer:memory-map:read.
* target.c (update_current_target): Mention to_memory_map.
(target_memory_map, target_pre_inferior): New.
(target_preopen): Call target_pre_inferior.
* target.h: Include "vec.h".
(enum target_object): Add TARGET_OBJECT_MEMORY_MAP.
(struct target_ops): Add to_memory_map.
(target_memory_map, target_pre_inferior): New prototypes.
* memory-map.c, memory-map.h, xml-support.c, xml-support.h: New files.
gdb/doc/
2006-09-21 Vladimir Prus <vladimir@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* gdb.texinfo (Memory Region Attributes): Mention target-supplied
memory regions and "mem auto".
2006-09-21 15:54:03 +02:00
|
|
|
|
}
|
|
|
|
|
|
2009-08-14 16:28:15 +02:00
|
|
|
|
/* Callback for iterate_over_inferiors. Gets rid of the given
|
|
|
|
|
inferior. */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
dispose_inferior (struct inferior *inf, void *args)
|
|
|
|
|
{
|
|
|
|
|
struct thread_info *thread;
|
|
|
|
|
|
|
|
|
|
thread = any_thread_of_process (inf->pid);
|
|
|
|
|
if (thread)
|
|
|
|
|
{
|
|
|
|
|
switch_to_thread (thread->ptid);
|
|
|
|
|
|
|
|
|
|
/* Core inferiors actually should be detached, not killed. */
|
|
|
|
|
if (target_has_execution)
|
|
|
|
|
target_kill ();
|
|
|
|
|
else
|
|
|
|
|
target_detach (NULL, 0);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
/* This is to be called by the open routine before it does
|
|
|
|
|
anything. */
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
target_preopen (int from_tty)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
1999-07-07 22:19:36 +02:00
|
|
|
|
dont_repeat ();
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2009-08-14 16:28:15 +02:00
|
|
|
|
if (have_inferiors ())
|
1999-07-07 22:19:36 +02:00
|
|
|
|
{
|
1999-07-20 01:30:11 +02:00
|
|
|
|
if (!from_tty
|
2009-08-14 16:28:15 +02:00
|
|
|
|
|| !have_live_inferiors ()
|
|
|
|
|
|| query (_("A program is being debugged already. Kill it? ")))
|
|
|
|
|
iterate_over_inferiors (dispose_inferior, NULL);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
else
|
2005-02-10 Andrew Cagney <cagney@gnu.org>
Mark up all error and warning messages.
* ada-lang.c, amd64-tdep.c, arch-utils.c, breakpoint.c: Update.
* bsd-kvm.c, bsd-uthread.c, coff-solib.h, coffread.c: Update.
* core-aout.c, core-regset.c, corefile.c, corelow.c: Update.
* cp-abi.c, cp-support.c, cp-valprint.c, cris-tdep.c: Update.
* dbxread.c, demangle.c, doublest.c, dsrec.c: Update.
* dve3900-rom.c, dwarf2expr.c, dwarf2loc.c: Update.
* dwarf2read.c, dwarfread.c, elfread.c, eval.c: Update.
* event-top.c, exec.c, expprint.c, f-lang.c: Update.
* f-typeprint.c, f-valprint.c, fbsd-nat.c, findvar.c: Update.
* frame.c, frv-linux-tdep.c, gcore.c, gdbtypes.c: Update.
* gnu-nat.c, gnu-v2-abi.c, gnu-v3-abi.c, go32-nat.c: Update.
* hpacc-abi.c, hppa-hpux-nat.c, hppa-hpux-tdep.c: Update.
* hppa-linux-nat.c, hppa-linux-tdep.c, hppa-tdep.c: Update.
* hpread.c, hpux-thread.c, i386-linux-nat.c: Update.
* i386-linux-tdep.c, i386-tdep.c, i386bsd-nat.c: Update.
* i386gnu-nat.c, i387-tdep.c, ia64-linux-nat.c: Update.
* ia64-tdep.c, inf-child.c, inf-ptrace.c, inf-ttrace.c: Update.
* infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Update.
* inftarg.c, interps.c, irix5-nat.c, jv-lang.c: Update.
* kod-cisco.c, kod.c, language.c, libunwind-frame.c: Update.
* linespec.c, linux-nat.c, linux-thread-db.c, m2-lang.c: Update.
* m32r-rom.c, m68hc11-tdep.c, m68k-tdep.c: Update.
* m68klinux-nat.c, macrocmd.c, macroexp.c, main.c: Update.
* maint.c, mdebugread.c, mem-break.c, memattr.c: Update.
* mips-linux-tdep.c, mips-tdep.c, mipsread.c, monitor.c: Update.
* nlmread.c, nto-procfs.c, objc-lang.c, objfiles.c: Update.
* observer.c, ocd.c, p-lang.c, p-typeprint.c: Update.
* p-valprint.c, pa64solib.c, parse.c, ppc-linux-tdep.c: Update.
* ppcnbsd-tdep.c, printcmd.c, procfs.c, remote-e7000.c: Update.
* remote-fileio.c, remote-m32r-sdi.c, remote-rdi.c: Update.
* remote-rdp.c, remote-sim.c, remote-st.c: Update.
* remote-utils.c, remote-utils.h, remote.c: Update.
* rom68k-rom.c, rs6000-nat.c, s390-tdep.c, scm-lang.c: Update.
* ser-e7kpc.c, ser-tcp.c, ser-unix.c, sh-tdep.c: Update.
* sh3-rom.c, shnbsd-tdep.c, sol-thread.c, solib-aix5.c: Update.
* solib-frv.c, solib-irix.c, solib-osf.c, solib-pa64.c: Update.
* solib-som.c, solib-sunos.c, solib-svr4.c, solib.c: Update.
* somread.c, somsolib.c, source.c, stabsread.c: Update.
* stack.c, std-regs.c, symfile-mem.c, symfile.c: Update.
* symmisc.c, symtab.c, target.c, thread.c, top.c: Update.
* tracepoint.c, trad-frame.c, typeprint.c, utils.c: Update.
* uw-thread.c, valarith.c, valops.c, valprint.c: Update.
* value.c, varobj.c, version.in, win32-nat.c, wince.c: Update.
* xcoffread.c, xcoffsolib.c, cli/cli-cmds.c: Update.
* cli/cli-decode.c, cli/cli-dump.c, cli/cli-logging.c: Update.
* cli/cli-script.c, cli/cli-setshow.c, mi/mi-cmd-break.c: Update.
* mi/mi-cmd-disas.c, mi/mi-cmd-env.c, mi/mi-cmd-file.c: Update.
* mi/mi-cmd-stack.c, mi/mi-cmd-var.c, mi/mi-getopt.c: Update.
* mi/mi-symbol-cmds.c, tui/tui-layout.c, tui/tui-stack.c: Update.
* tui/tui-win.c: Update.
2005-02-11 05:06:14 +01:00
|
|
|
|
error (_("Program not killed."));
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Calling target_kill may remove the target from the stack. But if
|
|
|
|
|
it doesn't (which seems like a win for UDI), remove it now. */
|
2008-08-19 01:12:40 +02:00
|
|
|
|
/* Leave the exec target, though. The user may be switching from a
|
|
|
|
|
live process to a core of the same program. */
|
2013-03-20 16:46:24 +01:00
|
|
|
|
pop_all_targets_above (file_stratum);
|
gdb/
2006-09-21 Vladimir Prus <vladimir@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
Nathan Sidwell <nathan@codesourcery.com>
* Makefile.in (SFILES): Add memory-map.c and xml-support.c.
(memory_map_h, xml_support_h): New.
(target_h): Add vec_h dependency.
(COMMON_OBS): Add memory-map.o and xml-support.o.
(memory-map.o, xml-support.o): New rules.
(remote.o): Update.
* exceptions.h (enum errors): Add XML_PARSE_ERROR.
* infcmd.c (run_command_1, attach_command): Call target_pre_inferior.
* memattr.c (default_mem_attrib): Initialize blocksize.
(target_mem_region_list, mem_use_target)
(target_mem_regions_valid, mem_region_cmp, mem_region_init)
(require_user_regions, require_target_regions)
(invalidate_target_mem_regions): New.
(create_mem_region): Use mem_region_init.
(mem_clear): Move higher.
(lookup_mem_region): Use require_target_regions.
(mem_command): Implement "mem auto".
(mem_info_command): Handle target-supplied regions and flash
attributes.
(mem_enable_command, mem_disable_command, mem_delete_command): Use
require_user_regions.
(_initialize_mem): Mention "mem auto" in help.
* memattr.h (enum mem_access_mode): Add MEM_FLASH.
(struct mem_attrib): Add blocksize.
(invalidate_target_mem_regions, mem_region_init, mem_region_cmp): New
prototypes.
* remote.c: Include "memory-map.h".
(PACKET_qXfer_memory_map): New enum value.
(remote_protocol_features): Add qXfer:memory-map:read.
(remote_xfer_partial): Handle memory maps.
(remote_memory_map): New.
(init_remote_ops, init_remote_async_ops): Set to_memory_map.
(_initialize_remote): Register qXfer:memory-map:read.
* target.c (update_current_target): Mention to_memory_map.
(target_memory_map, target_pre_inferior): New.
(target_preopen): Call target_pre_inferior.
* target.h: Include "vec.h".
(enum target_object): Add TARGET_OBJECT_MEMORY_MAP.
(struct target_ops): Add to_memory_map.
(target_memory_map, target_pre_inferior): New prototypes.
* memory-map.c, memory-map.h, xml-support.c, xml-support.h: New files.
gdb/doc/
2006-09-21 Vladimir Prus <vladimir@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* gdb.texinfo (Memory Region Attributes): Mention target-supplied
memory regions and "mem auto".
2006-09-21 15:54:03 +02:00
|
|
|
|
|
|
|
|
|
target_pre_inferior (from_tty);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Detach a target after doing deferred register stores. */
|
|
|
|
|
|
|
|
|
|
void
|
constify to_detach
This patch constifies the target_ops method to_detach.
This is a small cleanup, but also, I think, a bug-prevention fix,
since gdb already acts as if the "args" argument here was const.
In particular, top.c:quit_force calls kill_or_detach via
iterate_over_inferiors. kill_or_detach calls target_detach, passing
the same argument each time. So, if one of these methods was not
const-correct, then kill_or_detach would change its behavior in a
strange way.
I could not build every target I modified in this patch. I've
inspected them all by hand, though. Many targets do not use the
"args" parameter; a couple pass it to atoi; and a few pass it on to
the to_detach method of the target beneath. The only code that
required a real change was in linux-nat.c, and that only needed the
introduction of a temporary variable for const-correctness.
2013-11-08 Tom Tromey <tromey@redhat.com>
* aix-thread.c (aix_thread_detach): Update.
* corelow.c (core_detach): Update.
* darwin-nat.c (darwin_detach): Update.
* dec-thread.c (dec_thread_detach): Update.
* gnu-nat.c (gnu_detach): Update.
* go32-nat.c (go32_detach): Update.
* inf-ptrace.c (inf_ptrace_detach): Update.
* inf-ttrace.c (inf_ttrace_detach): Update.
* linux-fork.c (linux_fork_detach): Update.
* linux-fork.h (linux_fork_detach): Update.
* linux-nat.c (linux_nat_detach): Update. Introduce "tem"
local for const-correctness.
* linux-thread-db.c (thread_db_detach): Update.
* monitor.c (monitor_detach): Update.
* nto-procfs.c (procfs_detach): Update.
* procfs.c (procfs_detach): Update.
* record.c (record_detach): Update.
* record.h (record_detach): Update.
* remote-m32r-sdi.c (m32r_detach): Update.
* remote-mips.c (mips_detach): Update.
* remote-sim.c (gdbsim_detach): Update.
* remote.c (remote_detach_1, remote_detach)
(extended_remote_detach): Update.
* sol-thread.c (sol_thread_detach): Update.
* target.c (target_detach): Make "args" const.
(init_dummy_target): Update.
* target.h (struct target_ops) <to_detach>: Make argument const.
(target_detach): Likewise.
* windows-nat.c (windows_detach): Update.
2013-03-19 16:23:17 +01:00
|
|
|
|
target_detach (const char *args, int from_tty)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
Kill pthread_ops_hack
* target.h (struct target_ops): Make to_attach, to_detach,
to_create_inferior and to_mourn_inferior accept a pointer
to struct target_ops.
(target_attach, target_create_inferior, target_create_inferior):
Convert from macros to function. Find the right target to
invoke a method of.
(find_default_attach, find_default_create_inferior): New parameter
ops.
* corefile.c (core_file_command): Pass target to to_detach.
* corelow.c (core_detach): Add 'ops' parameter.
* fork-child.c (fork_inferior): Return the pid. Allow
init_trace_fun to be NULL.
* inf-ptrace (ptrace_ops_hack): Remove.
(inf_ptrace_him): Remove, moving all logic into....
(inf_ptrace_create_inferior): ... here. Push the target
passed as parameter.
(inf_ptrace_mourn_inferior, inf_ptrace_attach, inf_ptrace_detach):
Push/pop target passed as parameter, no ptrace_ops_hack.
(inf_ptrace_target): Don't remember result.
* inferior.h (fork_inferior): Adjust prototype.
* linux-nat.c (linux_nat_create_inferior, linux_nat_attach)
(linux_nat_detach, linux_nat_mourn_inferior): New parameter ops.
Pass it to linux_ops target.
* linux-thread-db.c (thread_db_detach, thread_db_mourn_inferior):
New parameter ops. Pass it to the target beneath.
* remote.c (remote_mourn, extended_remote_mourn, remote_detach)
(extended_remote_create_inferior): New parameter ops. Pass it
further.
* target.c (debug_to_attach, debug_to_detach)
(debug_to_mourn_inferior): New parameter ops.
(target_create_inferior): New.
(update_current_target): Do not inherit to_attach, to_detach,
to_create_inferiour, to_mourn_inferior. Do not default
to_detach and to_mourn_inferior.
(target_detach): Find the right target to use.
(target_mourn_inferior): New.
(find_default_attach, find_default_create_inferior): New parameter
ops. Pass the found target when calling its method.
(init_dummy_target): Provide fallback definition of to_detach.
(target_attach): New.
(debug_to_attach, debug_to_detach, debug_to_create_inferior)
(debug_to_mourn_inferiour): New parameter ops.
* aix-thread.c: Adjust.
* bsd-uthread.c: Adjust.
* gnu-nat.c: Adjust.
* go32-nat.c: Adjust.
* hpux-thread.c: Adjust.
* inf-ttrace.c: Ajust.
* monitor.c: Adjust.
* nto-procfs.c: Adjust.
* procfs.c: Adjust.
* remote-m32r-sdi.c: Adjust.
* remote-mips.c: Adjust.
* remote-sim.c: Adjust.
* rs6000-nat.c: Adjust.
* sol-thread.c: Adjust.
* win32-nat.c: Adjust.
* dec-thread.c: Adjust.
2008-11-09 12:27:18 +01:00
|
|
|
|
struct target_ops* t;
|
|
|
|
|
|
* gdbarch.sh (target_gdbarch): Remove macro.
(get_target_gdbarch): Rename to target_gdbarch.
* gdbarch.c, gdbarch.h: Rebuild.
* ada-tasks.c, aix-thread.c, amd64-linux-nat.c, arch-utils.c,
arm-tdep.c, auxv.c, breakpoint.c, bsd-uthread.c, corefile.c,
darwin-nat-info.c, dcache.c, dsrec.c, exec.c, fbsd-nat.c,
filesystem.c, gcore.c, gnu-nat.c, i386-darwin-nat.c, i386-nat.c,
ia64-vms-tdep.c, inf-ptrace.c, infcmd.c, jit.c, linux-nat.c,
linux-tdep.c, linux-thread-db.c, m32r-rom.c, memattr.c,
mep-tdep.c, microblaze-tdep.c, mips-linux-nat.c,
mips-linux-tdep.c, mips-tdep.c, monitor.c, moxie-tdep.c,
nto-procfs.c, nto-tdep.c, ppc-linux-nat.c, proc-service.c,
procfs.c, progspace.c, ravenscar-thread.c, record.c,
remote-m32r-sdi.c, remote-mips.c, remote-sim.c, remote.c,
rl78-tdep.c, rs6000-nat.c, rx-tdep.c, s390-nat.c, sol-thread.c,
solib-darwin.c, solib-dsbt.c, solib-frv.c, solib-ia64-hpux.c,
solib-irix.c, solib-pa64.c, solib-som.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, solib.c, spu-linux-nat.c,
spu-multiarch.c, spu-tdep.c, symfile-mem.c, symfile.c, symtab.c,
target-descriptions.c, target.c, target.h, tracepoint.c,
windows-nat.c, windows-tdep.c, xcoffsolib.c, cli/cli-dump.c,
common/agent.c, mi/mi-interp.c, python/py-finishbreakpoint.c,
python/py-inferior.c, python/python.c: Update.
2012-11-09 20:58:03 +01:00
|
|
|
|
if (gdbarch_has_global_breakpoints (target_gdbarch ()))
|
* remote.c (remote_start_remote): If the solib list is global,
fetch libraries and insert breakpoints after connecting.
* infcmd.c (post_create_inferior): If the solist is shared between
inferiors, no need to refetch it on every new inferior.
(detach_command): If the shared library list is shared between
inferiors, then don't clear it on every inferior detach.
* gdbarch.sh (has_global_solist): New.
* i386-dicos-tdep.c (i386_dicos_init_abi): Set
gdbarch_has_global_solist.
* target.c (target_pre_inferior): If the shared library list is
shared between inferiors, then don't clear it here, neither
invalidate the memory regions or clear the target description.
(target_detach): If the shared library list is shared between
inferiors, then don't remove breakpoints from the target here.
(target_disconnect): Comment.
* solib.c (update_solib_list): Check for null_ptid.
* breakpoint.c (insert_breakpoints, update_global_location_list):
If the shared library list is shared between inferiors, insert
breakpoints even if there's no execution.
(breakpoint_init_inferior): If the shared library list is shared
between inferiors, don't delete breakpoints or mark them
uninserted here.
* gdbarch.c, gdbarch.h: Regenerate.
2008-11-03 15:01:27 +01:00
|
|
|
|
/* Don't remove global breakpoints here. They're removed on
|
|
|
|
|
disconnection from the target. */
|
|
|
|
|
;
|
|
|
|
|
else
|
|
|
|
|
/* If we're in breakpoints-always-inserted mode, have to remove
|
|
|
|
|
them before detaching. */
|
2013-09-30 13:50:12 +02:00
|
|
|
|
remove_breakpoints_pid (ptid_get_pid (inferior_ptid));
|
2008-04-24 12:21:45 +02:00
|
|
|
|
|
2010-02-24 21:49:50 +01:00
|
|
|
|
prepare_for_detach ();
|
|
|
|
|
|
2013-12-13 21:33:08 +01:00
|
|
|
|
current_target.to_detach (¤t_target, args, from_tty);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
2003-06-17 22:28:14 +02:00
|
|
|
|
void
|
2014-06-06 21:26:53 +02:00
|
|
|
|
target_disconnect (const char *args, int from_tty)
|
2003-06-17 22:28:14 +02:00
|
|
|
|
{
|
* remote.c (remote_start_remote): If the solib list is global,
fetch libraries and insert breakpoints after connecting.
* infcmd.c (post_create_inferior): If the solist is shared between
inferiors, no need to refetch it on every new inferior.
(detach_command): If the shared library list is shared between
inferiors, then don't clear it on every inferior detach.
* gdbarch.sh (has_global_solist): New.
* i386-dicos-tdep.c (i386_dicos_init_abi): Set
gdbarch_has_global_solist.
* target.c (target_pre_inferior): If the shared library list is
shared between inferiors, then don't clear it here, neither
invalidate the memory regions or clear the target description.
(target_detach): If the shared library list is shared between
inferiors, then don't remove breakpoints from the target here.
(target_disconnect): Comment.
* solib.c (update_solib_list): Check for null_ptid.
* breakpoint.c (insert_breakpoints, update_global_location_list):
If the shared library list is shared between inferiors, insert
breakpoints even if there's no execution.
(breakpoint_init_inferior): If the shared library list is shared
between inferiors, don't delete breakpoints or mark them
uninserted here.
* gdbarch.c, gdbarch.h: Regenerate.
2008-11-03 15:01:27 +01:00
|
|
|
|
/* If we're in breakpoints-always-inserted mode or if breakpoints
|
|
|
|
|
are global across processes, we have to remove them before
|
|
|
|
|
disconnecting. */
|
2008-04-24 12:21:45 +02:00
|
|
|
|
remove_breakpoints ();
|
|
|
|
|
|
2013-12-20 18:30:13 +01:00
|
|
|
|
current_target.to_disconnect (¤t_target, args, from_tty);
|
2003-06-17 22:28:14 +02:00
|
|
|
|
}
|
|
|
|
|
|
* linux-nat.c (linux_nat_wait): Adjust.
(linux_nat_pid_to_str): Adjust. Remove call to thread_db_init.
* linux-nat.h (thread_db_init): Delete declaration.
* linux-thread-db.c (target_beneath): Delete.
(thread_db_init): Delete.
(thread_db_detach): Use find_target_beneath.
(thread_db_wait): Adjust interface. Use find_target_beneath.
(thread_db_mourn_inferior): Use find_target_beneath.
(thread_db_can_async_p, thread_db_is_async_p, thread_db_async)
(thread_db_async_mask): Delete.
(thread_db_pid_to_str): Adjust interface. Use
find_target_beneath.
(thread_db_get_thread_local_address): Adjust interface. Use
find_target_beneath.
(init_thread_db_ops): Delete references to delete functions.
* target.c (update_current_target): Don't inherit or default
to_wait. Don't inherit to_pid_to_str and
to_get_thread_local_address.
(target_translate_tls_address): Look for a pushed target that
implements to_get_thread_local_address, and use it instead of
checking for target_get_thread_local_address_p.
(target_wait, target_pid_to_str): Reimplement as functions.
(dummy_pid_to_str): New.
(init_dummy_target): Register it.
(debug_to_wait): Delete.
* target.h (struct target_ops): Make to_wait, to_pid_to_str and
to_get_thread_local_address accept a pointer to struct target_ops.
(target_wait): Delete macro, and declare as function.
(target_pid_to_str): Likewise.
(target_get_thread_local_address)
(target_get_thread_local_address_p): Delete.
(noprocess): Add NORETURN and ATTR_NORETURN tags.
* inf-ptrace.c (inf_ptrace_wait): Adjust.
(inf_ptrace_pid_to_str): New.
(inf_ptrace_target): Use inf_ptrace_pid_to_str.
* aix-thread.c (aix_thread_wait, aix_thread_pid_to_str): Adjust.
* bsd-kvm.c (bsd_kvm_pid_to_str): Adjust.
* bsd-uthread.c (bsd_uthread_wait, bsd_uthread_pid_to_str):
Adjust.
* corelow.c (core_pid_to_str): Adjust.
* darwin-nat.c (darwin_wait, darwin_pid_to_str): Adjust.
* dec-thread.c (dec_thread_wait, dec_thread_pid_to_str): Adjust.
* gnu-nat.c (gnu_wait, gnu_pid_to_str): Adjust.
* go32-nat.c (go32_wait, go32_pid_to_str): Adjust.
* hpux-thread.c (hpux_thread_wait): Adjust.
* inf-ttrace.c (inf_ttrace_wait, inf_ttrace_pid_to_str): Adjust.
* monitor.c (monitor_wait, monitor_pid_to_str): Adjust.
* nto-procfs.c (procfs_wait, procfs_pid_to_str): Adjust.
* procfs.c (procfs_pid_to_str): Adjust.
* remote-m32r-sdi.c (m32r_wait, m32r_pid_to_str): Adjust.
* remote-mips.c (mips_wait): Adjust.
* remote-sim.c (gdbsim_wait, gdbsim_pid_to_str): Adjust.
* remote.c (remote_wait, remote_pid_to_str)
(remote_get_thread_local_address): Adjust.
* rs6000-nat.c (rs6000_wait): Adjust.
* sol-thread.c (procfs_pid_to_str): Adjust declaration.
(sol_thread_wait, solaris_pid_to_str): Adjust.
* spu-linux-nat.c (spu_child_wait): Adjust.
* windows-nat.c (windows_wait, windows_pid_to_str): Adjust.
2009-02-06 23:21:26 +01:00
|
|
|
|
ptid_t
|
2009-05-21 17:48:42 +02:00
|
|
|
|
target_wait (ptid_t ptid, struct target_waitstatus *status, int options)
|
* linux-nat.c (linux_nat_wait): Adjust.
(linux_nat_pid_to_str): Adjust. Remove call to thread_db_init.
* linux-nat.h (thread_db_init): Delete declaration.
* linux-thread-db.c (target_beneath): Delete.
(thread_db_init): Delete.
(thread_db_detach): Use find_target_beneath.
(thread_db_wait): Adjust interface. Use find_target_beneath.
(thread_db_mourn_inferior): Use find_target_beneath.
(thread_db_can_async_p, thread_db_is_async_p, thread_db_async)
(thread_db_async_mask): Delete.
(thread_db_pid_to_str): Adjust interface. Use
find_target_beneath.
(thread_db_get_thread_local_address): Adjust interface. Use
find_target_beneath.
(init_thread_db_ops): Delete references to delete functions.
* target.c (update_current_target): Don't inherit or default
to_wait. Don't inherit to_pid_to_str and
to_get_thread_local_address.
(target_translate_tls_address): Look for a pushed target that
implements to_get_thread_local_address, and use it instead of
checking for target_get_thread_local_address_p.
(target_wait, target_pid_to_str): Reimplement as functions.
(dummy_pid_to_str): New.
(init_dummy_target): Register it.
(debug_to_wait): Delete.
* target.h (struct target_ops): Make to_wait, to_pid_to_str and
to_get_thread_local_address accept a pointer to struct target_ops.
(target_wait): Delete macro, and declare as function.
(target_pid_to_str): Likewise.
(target_get_thread_local_address)
(target_get_thread_local_address_p): Delete.
(noprocess): Add NORETURN and ATTR_NORETURN tags.
* inf-ptrace.c (inf_ptrace_wait): Adjust.
(inf_ptrace_pid_to_str): New.
(inf_ptrace_target): Use inf_ptrace_pid_to_str.
* aix-thread.c (aix_thread_wait, aix_thread_pid_to_str): Adjust.
* bsd-kvm.c (bsd_kvm_pid_to_str): Adjust.
* bsd-uthread.c (bsd_uthread_wait, bsd_uthread_pid_to_str):
Adjust.
* corelow.c (core_pid_to_str): Adjust.
* darwin-nat.c (darwin_wait, darwin_pid_to_str): Adjust.
* dec-thread.c (dec_thread_wait, dec_thread_pid_to_str): Adjust.
* gnu-nat.c (gnu_wait, gnu_pid_to_str): Adjust.
* go32-nat.c (go32_wait, go32_pid_to_str): Adjust.
* hpux-thread.c (hpux_thread_wait): Adjust.
* inf-ttrace.c (inf_ttrace_wait, inf_ttrace_pid_to_str): Adjust.
* monitor.c (monitor_wait, monitor_pid_to_str): Adjust.
* nto-procfs.c (procfs_wait, procfs_pid_to_str): Adjust.
* procfs.c (procfs_pid_to_str): Adjust.
* remote-m32r-sdi.c (m32r_wait, m32r_pid_to_str): Adjust.
* remote-mips.c (mips_wait): Adjust.
* remote-sim.c (gdbsim_wait, gdbsim_pid_to_str): Adjust.
* remote.c (remote_wait, remote_pid_to_str)
(remote_get_thread_local_address): Adjust.
* rs6000-nat.c (rs6000_wait): Adjust.
* sol-thread.c (procfs_pid_to_str): Adjust declaration.
(sol_thread_wait, solaris_pid_to_str): Adjust.
* spu-linux-nat.c (spu_child_wait): Adjust.
* windows-nat.c (windows_wait, windows_pid_to_str): Adjust.
2009-02-06 23:21:26 +01:00
|
|
|
|
{
|
auto-generate most target debug methods
The target debug methods are inconsistently maintained. Most to_*
methods have some kind of targetdebug awareness, but not all of them
do. The ones that do vary in the quantity and quality of output they
generate.
This patch changes most of the target debug methods to be
automatically generated. All the arguments are printed, and separate
lines are printed for entering and existing the outermost call to the
target stack.
For example now you'd see:
-> multi-thread->to_terminal_ours (...)
-> multi-thread->to_is_async_p (...)
<- multi-thread->to_is_async_p (0x1ebb580) = 1
<- multi-thread->to_terminal_ours (0x1ebb580)
-> multi-thread->to_thread_address_space (...)
<- multi-thread->to_thread_address_space (0x1ebb580, 26802) = 1
In this case you can see nested calls. The "multi-thread" on the left
hand side is the topmost target's shortname.
There are some oddities with this patch. I'm on the fence about it
all, I really just wrote it on a whim.
It's not simple to convert every possible method, since a few don't
participate in target delegation.
Printing is done by type, so I introduced some new
debug-printing-specific typedefs to handle cases where it is nicer to
do something else.
On the plus side, this lays the groundwork for making targetdebug
affect every layer of the target stack. The idea would be to wrap
each target_ops in the stack with its own debug_target, and then you
could see calls propagate down the stack and back up; I suppose with
indentation to make it prettier. (That said there are some gotchas
lurking in this idea due to target stack introspection.)
Regtested on x86-64 Fedora 20.
2014-07-24 Tom Tromey <tromey@redhat.com>
* make-target-delegates (munge_type, write_debugmethod): New
functions.
(debug_names): New global.
($TARGET_DEBUG_PRINTER): New global.
(write_function_header): Strip TARGET_DEBUG_PRINTER from the type
name.
Write debug methods. Generate init_debug_target.
* target-debug.h: New file.
* target-delegates.c: Rebuild.
* target.c: Include target-debug.h.
(debug_target): Hoist definition.
(target_kill, target_get_section_table, target_memory_map)
(target_flash_erase, target_flash_done, target_detach)
(target_disconnect, target_wait, target_resume)
(target_pass_signals, target_program_signals, target_follow_fork)
(target_mourn_inferior, target_search_memory)
(target_thread_address_space, target_close)
(target_find_new_threads, target_core_of_thread)
(target_verify_memory, target_insert_mask_watchpoint)
(target_remove_mask_watchpoint): Remove targetdebug code.
(debug_to_post_attach, debug_to_prepare_to_store)
(debug_to_files_info, debug_to_insert_breakpoint)
(debug_to_remove_breakpoint, debug_to_can_use_hw_breakpoint)
(debug_to_region_ok_for_hw_watchpoint)
(debug_to_can_accel_watchpoint_condition)
(debug_to_stopped_by_watchpoint, debug_to_stopped_data_address)
(debug_to_watchpoint_addr_within_range)
(debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint)
(debug_to_insert_watchpoint, debug_to_remove_watchpoint)
(debug_to_terminal_init, debug_to_terminal_inferior)
(debug_to_terminal_ours_for_output, debug_to_terminal_ours)
(debug_to_terminal_save_ours, debug_to_terminal_info)
(debug_to_load, debug_to_post_startup_inferior)
(debug_to_insert_fork_catchpoint)
(debug_to_remove_fork_catchpoint)
(debug_to_insert_vfork_catchpoint)
(debug_to_remove_vfork_catchpoint)
(debug_to_insert_exec_catchpoint)
(debug_to_remove_exec_catchpoint, debug_to_has_exited)
(debug_to_can_run, debug_to_thread_architecture, debug_to_stop)
(debug_to_rcmd, debug_to_pid_to_exec_file): Remove.
(setup_target_debug): Call init_debug_target.
* target.h (TARGET_DEBUG_PRINTER): New macro.
(struct target_ops) <to_resume, to_wait, to_pass_signals,
to_program_signals>: Use TARGET_DEBUG_PRINTER.
2014-06-16 05:28:57 +02:00
|
|
|
|
return (current_target.to_wait) (¤t_target, ptid, status, options);
|
* linux-nat.c (linux_nat_wait): Adjust.
(linux_nat_pid_to_str): Adjust. Remove call to thread_db_init.
* linux-nat.h (thread_db_init): Delete declaration.
* linux-thread-db.c (target_beneath): Delete.
(thread_db_init): Delete.
(thread_db_detach): Use find_target_beneath.
(thread_db_wait): Adjust interface. Use find_target_beneath.
(thread_db_mourn_inferior): Use find_target_beneath.
(thread_db_can_async_p, thread_db_is_async_p, thread_db_async)
(thread_db_async_mask): Delete.
(thread_db_pid_to_str): Adjust interface. Use
find_target_beneath.
(thread_db_get_thread_local_address): Adjust interface. Use
find_target_beneath.
(init_thread_db_ops): Delete references to delete functions.
* target.c (update_current_target): Don't inherit or default
to_wait. Don't inherit to_pid_to_str and
to_get_thread_local_address.
(target_translate_tls_address): Look for a pushed target that
implements to_get_thread_local_address, and use it instead of
checking for target_get_thread_local_address_p.
(target_wait, target_pid_to_str): Reimplement as functions.
(dummy_pid_to_str): New.
(init_dummy_target): Register it.
(debug_to_wait): Delete.
* target.h (struct target_ops): Make to_wait, to_pid_to_str and
to_get_thread_local_address accept a pointer to struct target_ops.
(target_wait): Delete macro, and declare as function.
(target_pid_to_str): Likewise.
(target_get_thread_local_address)
(target_get_thread_local_address_p): Delete.
(noprocess): Add NORETURN and ATTR_NORETURN tags.
* inf-ptrace.c (inf_ptrace_wait): Adjust.
(inf_ptrace_pid_to_str): New.
(inf_ptrace_target): Use inf_ptrace_pid_to_str.
* aix-thread.c (aix_thread_wait, aix_thread_pid_to_str): Adjust.
* bsd-kvm.c (bsd_kvm_pid_to_str): Adjust.
* bsd-uthread.c (bsd_uthread_wait, bsd_uthread_pid_to_str):
Adjust.
* corelow.c (core_pid_to_str): Adjust.
* darwin-nat.c (darwin_wait, darwin_pid_to_str): Adjust.
* dec-thread.c (dec_thread_wait, dec_thread_pid_to_str): Adjust.
* gnu-nat.c (gnu_wait, gnu_pid_to_str): Adjust.
* go32-nat.c (go32_wait, go32_pid_to_str): Adjust.
* hpux-thread.c (hpux_thread_wait): Adjust.
* inf-ttrace.c (inf_ttrace_wait, inf_ttrace_pid_to_str): Adjust.
* monitor.c (monitor_wait, monitor_pid_to_str): Adjust.
* nto-procfs.c (procfs_wait, procfs_pid_to_str): Adjust.
* procfs.c (procfs_pid_to_str): Adjust.
* remote-m32r-sdi.c (m32r_wait, m32r_pid_to_str): Adjust.
* remote-mips.c (mips_wait): Adjust.
* remote-sim.c (gdbsim_wait, gdbsim_pid_to_str): Adjust.
* remote.c (remote_wait, remote_pid_to_str)
(remote_get_thread_local_address): Adjust.
* rs6000-nat.c (rs6000_wait): Adjust.
* sol-thread.c (procfs_pid_to_str): Adjust declaration.
(sol_thread_wait, solaris_pid_to_str): Adjust.
* spu-linux-nat.c (spu_child_wait): Adjust.
* windows-nat.c (windows_wait, windows_pid_to_str): Adjust.
2009-02-06 23:21:26 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
char *
|
|
|
|
|
target_pid_to_str (ptid_t ptid)
|
|
|
|
|
{
|
2013-12-18 22:46:03 +01:00
|
|
|
|
return (*current_target.to_pid_to_str) (¤t_target, ptid);
|
* linux-nat.c (linux_nat_wait): Adjust.
(linux_nat_pid_to_str): Adjust. Remove call to thread_db_init.
* linux-nat.h (thread_db_init): Delete declaration.
* linux-thread-db.c (target_beneath): Delete.
(thread_db_init): Delete.
(thread_db_detach): Use find_target_beneath.
(thread_db_wait): Adjust interface. Use find_target_beneath.
(thread_db_mourn_inferior): Use find_target_beneath.
(thread_db_can_async_p, thread_db_is_async_p, thread_db_async)
(thread_db_async_mask): Delete.
(thread_db_pid_to_str): Adjust interface. Use
find_target_beneath.
(thread_db_get_thread_local_address): Adjust interface. Use
find_target_beneath.
(init_thread_db_ops): Delete references to delete functions.
* target.c (update_current_target): Don't inherit or default
to_wait. Don't inherit to_pid_to_str and
to_get_thread_local_address.
(target_translate_tls_address): Look for a pushed target that
implements to_get_thread_local_address, and use it instead of
checking for target_get_thread_local_address_p.
(target_wait, target_pid_to_str): Reimplement as functions.
(dummy_pid_to_str): New.
(init_dummy_target): Register it.
(debug_to_wait): Delete.
* target.h (struct target_ops): Make to_wait, to_pid_to_str and
to_get_thread_local_address accept a pointer to struct target_ops.
(target_wait): Delete macro, and declare as function.
(target_pid_to_str): Likewise.
(target_get_thread_local_address)
(target_get_thread_local_address_p): Delete.
(noprocess): Add NORETURN and ATTR_NORETURN tags.
* inf-ptrace.c (inf_ptrace_wait): Adjust.
(inf_ptrace_pid_to_str): New.
(inf_ptrace_target): Use inf_ptrace_pid_to_str.
* aix-thread.c (aix_thread_wait, aix_thread_pid_to_str): Adjust.
* bsd-kvm.c (bsd_kvm_pid_to_str): Adjust.
* bsd-uthread.c (bsd_uthread_wait, bsd_uthread_pid_to_str):
Adjust.
* corelow.c (core_pid_to_str): Adjust.
* darwin-nat.c (darwin_wait, darwin_pid_to_str): Adjust.
* dec-thread.c (dec_thread_wait, dec_thread_pid_to_str): Adjust.
* gnu-nat.c (gnu_wait, gnu_pid_to_str): Adjust.
* go32-nat.c (go32_wait, go32_pid_to_str): Adjust.
* hpux-thread.c (hpux_thread_wait): Adjust.
* inf-ttrace.c (inf_ttrace_wait, inf_ttrace_pid_to_str): Adjust.
* monitor.c (monitor_wait, monitor_pid_to_str): Adjust.
* nto-procfs.c (procfs_wait, procfs_pid_to_str): Adjust.
* procfs.c (procfs_pid_to_str): Adjust.
* remote-m32r-sdi.c (m32r_wait, m32r_pid_to_str): Adjust.
* remote-mips.c (mips_wait): Adjust.
* remote-sim.c (gdbsim_wait, gdbsim_pid_to_str): Adjust.
* remote.c (remote_wait, remote_pid_to_str)
(remote_get_thread_local_address): Adjust.
* rs6000-nat.c (rs6000_wait): Adjust.
* sol-thread.c (procfs_pid_to_str): Adjust declaration.
(sol_thread_wait, solaris_pid_to_str): Adjust.
* spu-linux-nat.c (spu_child_wait): Adjust.
* windows-nat.c (windows_wait, windows_pid_to_str): Adjust.
2009-02-06 23:21:26 +01:00
|
|
|
|
}
|
|
|
|
|
|
2011-01-19 18:21:39 +01:00
|
|
|
|
char *
|
|
|
|
|
target_thread_name (struct thread_info *info)
|
|
|
|
|
{
|
2013-12-18 18:49:35 +01:00
|
|
|
|
return current_target.to_thread_name (¤t_target, info);
|
2011-01-19 18:21:39 +01:00
|
|
|
|
}
|
|
|
|
|
|
2008-06-10 12:23:54 +02:00
|
|
|
|
void
|
2012-05-24 18:39:15 +02:00
|
|
|
|
target_resume (ptid_t ptid, int step, enum gdb_signal signal)
|
2008-06-10 12:23:54 +02:00
|
|
|
|
{
|
* corelow.c (get_core_registers): Adjust.
(core_file_thread_alive): Rename to...
(core_thread_alive): ... this.
(core_pid_to_str): Try gdbarch_core_pid_to_str first.
(init_core_ops): Adjust.
(coreops_suppress_target): Delete.
(_initialize_corelow): Unconditionally add core_ops.
* procfs.c: Include "inf-child.h".
(procfs_ops): Delete.
(init_procfs_ops): Delete. Reimplement as...
(procfs_target): ... this, inheriting from inf-child.
(procfs_attach, procfs_detach, procfs_fetch_registers): Adjust.
(procfs_prepare_to_store): Delete.
(procfs_store_registers, procfs_resume): Adjust.
(procfs_open): Delete.
(procfs_suppress_run): Delete.
(procfs_can_run): Delete.
(procfs_mourn_inferior): Adjust.
(procfs_init_inferior): Add target_ops parameter. Adjust.
(procfs_create_inferior): Don't pass procfs_init_inferior to
fork_inferior. Instead call it after fork_inferior returns.
(procfs_find_new_threads): Adjust.
(_initialize_procfs): Adjust to use procfs_target instead of
init_procfs_ops.
* sol-thread.c (orig_core_ops, sol_core_ops): Delete.
(lwp_to_thread): Use target_thread_alive.
(sol_thread_open): Delete.
(sol_thread_attach): Delete.
(sol_thread_detach, sol_thread_resume, sol_thread_wait)
(sol_thread_fetch_registers, sol_thread_store_registers): Adjust
to use find_target_beneath.
(sol_thread_prepare_to_store, sol_thread_xfer_memory): Delete.
(sol_thread_xfer_partial): Adjust to use find_target_beneath.
(sol_thread_files_info, sol_thread_kill_inferior): Delete.
(check_for_thread_db): New.
(sol_thread_notice_signals, sol_thread_create_inferior): Delete.
(sol_thread_new_objfile): Call check_for_thread_db.
(sol_thread_mourn_inferior): Adjust to use find_target_beneath.
(sol_thread_can_run): Delete.
(sol_thread_alive): Adjust to use find_target_beneath.
(sol_thread_stop): Delete.
(rw_common): Use target_write_memory or target_read_memory.
(ps_lgetregs, ps_lgetfpregs): Use target_fetch_registers.
(ps_lsetregs, ps_lsetfpregs): Use target_store_registers.
(solaris_pid_to_str): Remove check for libthread_db initialization
failing.
(sol_find_new_threads): Remove check for libthread_db
initialization failing, or for an invalid inferior_ptid. Adjust
to use find_target_beneath.
(sol_core_open, sol_core_close, sol_core_detach,
sol_core_files_info, sol_find_memory_regions,
sol_make_note_section, ignore): Delete.
(init_sol_thread_ops): Make it a thread_stratum target. Remove
unneeded callback settings.
(init_sol_core_ops): Delete.
(_initialize_sol_thread): No longer call init_sol_core_ops, set
procfs_suppress_run, or hack with core_ops.
* target.h (struct target_ops): Add a target_ops * parameter to
to_resume, to_fetch_registers, to_store_registers, to_thread_alive
and to_find_new_threads.
(target_fetch_registers, target_store_registers)
(target_thread_alive, target_find_new_threads): Redeclare as
function.
* target.c (update_current_target): Do not inherit or de_fault
to_resume, to_fetch_registers, to_store_registers,
to_thread_alive, to_find_new_threads.
(target_resume): Adjust.
(target_thread_alive, target_find_new_threads): New.
(debug_to_resume, debug_to_fetch_registers): Delete.
(target_fetch_registers): New.
(debug_to_store_registers): Delete.
(target_store_registers): New.
(debug_to_thread_alive, debug_to_find_new_threads): Delete.
(setup_target_debug): Adjust.
* gdbcore.h (core_ops): Delete declaration.
* inf-ptrace.c, linux-nat.c, remote.c, amd64-linux-nat.c,
inf-child.c, linux-thread-db.c, bsd-uthread.c, inf-ttrace.c,
i386-sol2-tdep.c, darwin-nat.c, gnu-nat.c, go32-nat.c,
hpux-thread.c, i386-linux-nat.c, i386fbsd-nat.c, monitor.c,
nto-procfs.c, remote-m32r-sdi.c, remote-mips.c, windows-nat.c,
alphabsd-nat.c, amd64bsd-nat.c, arm-linux-nat.c, armnbsd-nat.c,
bsd-kvm.c, hppa-hpux-nat.c, hppa-linux-nat.c, hppabsd-nat.c,
hppanbsd-nat.c, i386-darwin-nat.c, i386bsd-nat.c,
ia64-linux-nat.c, m32r-linux-nat.c, m68kbsd-nat.c,
m68klinux-nat.c, m88kbsd-nat.c, mips-linux-nat.c,
mips64obsd-nat.c, mipsnbsd-nat.c, ppc-linux-nat.c, ppcnbsd-nat.c,
ppcobsd-nat.c, remote-sim.c, rs6000-nat.c, s390-nat.c,
shnbsd-nat.c, sparc-nat.c, sparc-nat.h, spu-linux-nat.c,
vaxbsd-nat.c, xtensa-linux-nat.c: Adjust to target_ops changes.
* gdbarch.sh (core_pid_to_str): New gdbarch callback.
* gdbarch.h, gdbarch.c: Regenerate.
* sol2-tdep.c: Include "inferior.h".
(sol2_core_pid_to_str): New.
* sol2-tdep.h (sol2_core_pid_to_str): Declare.
* amd64-sol2-tdep.c (amd64_sol2_init_abi): Set it.
* sparc-sol2-tdep.c (sparc32_sol2_init_abi): Set it.
* sparc64-sol2-tdep.c (sparc64_sol2_init_abi): Set it.
* i386-sol2-tdep.c (i386_sol2_init_abi): Set it.
2009-02-23 01:03:50 +01:00
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
2009-08-31 22:18:46 +02:00
|
|
|
|
target_dcache_invalidate ();
|
* corelow.c (get_core_registers): Adjust.
(core_file_thread_alive): Rename to...
(core_thread_alive): ... this.
(core_pid_to_str): Try gdbarch_core_pid_to_str first.
(init_core_ops): Adjust.
(coreops_suppress_target): Delete.
(_initialize_corelow): Unconditionally add core_ops.
* procfs.c: Include "inf-child.h".
(procfs_ops): Delete.
(init_procfs_ops): Delete. Reimplement as...
(procfs_target): ... this, inheriting from inf-child.
(procfs_attach, procfs_detach, procfs_fetch_registers): Adjust.
(procfs_prepare_to_store): Delete.
(procfs_store_registers, procfs_resume): Adjust.
(procfs_open): Delete.
(procfs_suppress_run): Delete.
(procfs_can_run): Delete.
(procfs_mourn_inferior): Adjust.
(procfs_init_inferior): Add target_ops parameter. Adjust.
(procfs_create_inferior): Don't pass procfs_init_inferior to
fork_inferior. Instead call it after fork_inferior returns.
(procfs_find_new_threads): Adjust.
(_initialize_procfs): Adjust to use procfs_target instead of
init_procfs_ops.
* sol-thread.c (orig_core_ops, sol_core_ops): Delete.
(lwp_to_thread): Use target_thread_alive.
(sol_thread_open): Delete.
(sol_thread_attach): Delete.
(sol_thread_detach, sol_thread_resume, sol_thread_wait)
(sol_thread_fetch_registers, sol_thread_store_registers): Adjust
to use find_target_beneath.
(sol_thread_prepare_to_store, sol_thread_xfer_memory): Delete.
(sol_thread_xfer_partial): Adjust to use find_target_beneath.
(sol_thread_files_info, sol_thread_kill_inferior): Delete.
(check_for_thread_db): New.
(sol_thread_notice_signals, sol_thread_create_inferior): Delete.
(sol_thread_new_objfile): Call check_for_thread_db.
(sol_thread_mourn_inferior): Adjust to use find_target_beneath.
(sol_thread_can_run): Delete.
(sol_thread_alive): Adjust to use find_target_beneath.
(sol_thread_stop): Delete.
(rw_common): Use target_write_memory or target_read_memory.
(ps_lgetregs, ps_lgetfpregs): Use target_fetch_registers.
(ps_lsetregs, ps_lsetfpregs): Use target_store_registers.
(solaris_pid_to_str): Remove check for libthread_db initialization
failing.
(sol_find_new_threads): Remove check for libthread_db
initialization failing, or for an invalid inferior_ptid. Adjust
to use find_target_beneath.
(sol_core_open, sol_core_close, sol_core_detach,
sol_core_files_info, sol_find_memory_regions,
sol_make_note_section, ignore): Delete.
(init_sol_thread_ops): Make it a thread_stratum target. Remove
unneeded callback settings.
(init_sol_core_ops): Delete.
(_initialize_sol_thread): No longer call init_sol_core_ops, set
procfs_suppress_run, or hack with core_ops.
* target.h (struct target_ops): Add a target_ops * parameter to
to_resume, to_fetch_registers, to_store_registers, to_thread_alive
and to_find_new_threads.
(target_fetch_registers, target_store_registers)
(target_thread_alive, target_find_new_threads): Redeclare as
function.
* target.c (update_current_target): Do not inherit or de_fault
to_resume, to_fetch_registers, to_store_registers,
to_thread_alive, to_find_new_threads.
(target_resume): Adjust.
(target_thread_alive, target_find_new_threads): New.
(debug_to_resume, debug_to_fetch_registers): Delete.
(target_fetch_registers): New.
(debug_to_store_registers): Delete.
(target_store_registers): New.
(debug_to_thread_alive, debug_to_find_new_threads): Delete.
(setup_target_debug): Adjust.
* gdbcore.h (core_ops): Delete declaration.
* inf-ptrace.c, linux-nat.c, remote.c, amd64-linux-nat.c,
inf-child.c, linux-thread-db.c, bsd-uthread.c, inf-ttrace.c,
i386-sol2-tdep.c, darwin-nat.c, gnu-nat.c, go32-nat.c,
hpux-thread.c, i386-linux-nat.c, i386fbsd-nat.c, monitor.c,
nto-procfs.c, remote-m32r-sdi.c, remote-mips.c, windows-nat.c,
alphabsd-nat.c, amd64bsd-nat.c, arm-linux-nat.c, armnbsd-nat.c,
bsd-kvm.c, hppa-hpux-nat.c, hppa-linux-nat.c, hppabsd-nat.c,
hppanbsd-nat.c, i386-darwin-nat.c, i386bsd-nat.c,
ia64-linux-nat.c, m32r-linux-nat.c, m68kbsd-nat.c,
m68klinux-nat.c, m88kbsd-nat.c, mips-linux-nat.c,
mips64obsd-nat.c, mipsnbsd-nat.c, ppc-linux-nat.c, ppcnbsd-nat.c,
ppcobsd-nat.c, remote-sim.c, rs6000-nat.c, s390-nat.c,
shnbsd-nat.c, sparc-nat.c, sparc-nat.h, spu-linux-nat.c,
vaxbsd-nat.c, xtensa-linux-nat.c: Adjust to target_ops changes.
* gdbarch.sh (core_pid_to_str): New gdbarch callback.
* gdbarch.h, gdbarch.c: Regenerate.
* sol2-tdep.c: Include "inferior.h".
(sol2_core_pid_to_str): New.
* sol2-tdep.h (sol2_core_pid_to_str): Declare.
* amd64-sol2-tdep.c (amd64_sol2_init_abi): Set it.
* sparc-sol2-tdep.c (sparc32_sol2_init_abi): Set it.
* sparc64-sol2-tdep.c (sparc64_sol2_init_abi): Set it.
* i386-sol2-tdep.c (i386_sol2_init_abi): Set it.
2009-02-23 01:03:50 +01:00
|
|
|
|
|
add target method delegation
This patch replaces some code in the record targets with target method
delegation.
record-full.c stores pointers to many target methods when the record
target is pushed. Then it later delegates some calls via these. This
is wrong because it violates the target stack contract. In particular
it is ok to unpush a target at any stratum, but record-full does not
keep track of this, so it could potentially call into an unpushed
target.
This patch fixes the problem by using the newly-introduced generic
approach to target delegation for the methods in question.
2014-02-19 Tom Tromey <tromey@redhat.com>
* record-full.c (record_full_beneath_to_resume_ops)
(record_full_beneath_to_resume, record_full_beneath_to_wait_ops)
(record_full_beneath_to_wait)
(record_full_beneath_to_store_registers_ops)
(record_full_beneath_to_store_registers)
(record_full_beneath_to_xfer_partial_ops)
(record_full_beneath_to_xfer_partial)
(record_full_beneath_to_insert_breakpoint_ops)
(record_full_beneath_to_insert_breakpoint)
(record_full_beneath_to_remove_breakpoint_ops)
(record_full_beneath_to_remove_breakpoint)
(record_full_beneath_to_stopped_by_watchpoint)
(record_full_beneath_to_stopped_data_address)
(record_full_beneath_to_async, tmp_to_resume_ops, tmp_to_resume)
(tmp_to_wait_ops, tmp_to_wait, tmp_to_store_registers_ops)
(tmp_to_store_registers, tmp_to_xfer_partial_ops)
(tmp_to_xfer_partial, tmp_to_instmp_to_insert_breakpoint_ops)
(tmp_to_insert_breakpoint, tmp_to_remove_breakpoint_ops)
(tmp_to_remove_breakpoint, tmp_to_stopped_by_watchpoint)
(tmp_to_stopped_data_address, tmp_to_async): Remove.
(record_full_open_1, record_full_open): Update. Use RECORD_IS_USED.
(record_full_resume, record_full_wait_1)
(record_full_stopped_by_watchpoint, record_full_stopped_data_address)
(record_full_store_registers, record_full_xfer_partial)
(record_full_insert_breakpoint, record_full_remove_breakpoint)
(record_full_async, record_full_core_xfer_partial): Use target
delegation.
* target-delegates.c: Rebuild.
* target.c (current_xfer_partial): Remove.
(update_current_target): Do not INHERIT or de_fault
to_insert_breakpoint, to_remove_breakpoint,
to_stopped_data_address, to_stopped_by_watchpoint, to_can_async_p,
to_is_async_p, to_async. Do not set to_xfer_partial field.
(default_xfer_partial): Simplify.
(current_xfer_partial): Remove.
(target_wait, target_resume): Simplify.
(find_default_can_async_p, find_default_is_async_p): Update.
(init_dummy_target): Don't set to_can_async_p, to_is_async_p,
to_xfer_partial, to_stopped_by_watchpoint,
to_stopped_data_address.
(target_store_registers): Simplify.
(forward_target_remove_breakpoint)
(forward_target_insert_breakpoint): Remove.
(target_remove_breakpoint, target_insert_breakpoint)
(debug_to_insert_breakpoint, debug_to_remove_breakpoint): Update.
* target.h (struct target_ops) <to_resume, to_wait,
to_store_registers, to_insert_breakpoint, to_remove_breakpoint,
to_stopped_by_watchpoint, to_stopped_data_address, to_can_async_p,
to_is_async_p, to_async, to_xfer_partial>: Add TARGET_DEFAULT
markup.
(forward_target_remove_breakpoint)
(forward_target_insert_breakpoint): Remove.
* record-btrace.c (record_btrace_remove_breakpoint): Delegate
directly.
(record_btrace_insert_breakpoint): Delegate directly.
2013-07-12 21:00:34 +02:00
|
|
|
|
current_target.to_resume (¤t_target, ptid, step, signal);
|
* corelow.c (get_core_registers): Adjust.
(core_file_thread_alive): Rename to...
(core_thread_alive): ... this.
(core_pid_to_str): Try gdbarch_core_pid_to_str first.
(init_core_ops): Adjust.
(coreops_suppress_target): Delete.
(_initialize_corelow): Unconditionally add core_ops.
* procfs.c: Include "inf-child.h".
(procfs_ops): Delete.
(init_procfs_ops): Delete. Reimplement as...
(procfs_target): ... this, inheriting from inf-child.
(procfs_attach, procfs_detach, procfs_fetch_registers): Adjust.
(procfs_prepare_to_store): Delete.
(procfs_store_registers, procfs_resume): Adjust.
(procfs_open): Delete.
(procfs_suppress_run): Delete.
(procfs_can_run): Delete.
(procfs_mourn_inferior): Adjust.
(procfs_init_inferior): Add target_ops parameter. Adjust.
(procfs_create_inferior): Don't pass procfs_init_inferior to
fork_inferior. Instead call it after fork_inferior returns.
(procfs_find_new_threads): Adjust.
(_initialize_procfs): Adjust to use procfs_target instead of
init_procfs_ops.
* sol-thread.c (orig_core_ops, sol_core_ops): Delete.
(lwp_to_thread): Use target_thread_alive.
(sol_thread_open): Delete.
(sol_thread_attach): Delete.
(sol_thread_detach, sol_thread_resume, sol_thread_wait)
(sol_thread_fetch_registers, sol_thread_store_registers): Adjust
to use find_target_beneath.
(sol_thread_prepare_to_store, sol_thread_xfer_memory): Delete.
(sol_thread_xfer_partial): Adjust to use find_target_beneath.
(sol_thread_files_info, sol_thread_kill_inferior): Delete.
(check_for_thread_db): New.
(sol_thread_notice_signals, sol_thread_create_inferior): Delete.
(sol_thread_new_objfile): Call check_for_thread_db.
(sol_thread_mourn_inferior): Adjust to use find_target_beneath.
(sol_thread_can_run): Delete.
(sol_thread_alive): Adjust to use find_target_beneath.
(sol_thread_stop): Delete.
(rw_common): Use target_write_memory or target_read_memory.
(ps_lgetregs, ps_lgetfpregs): Use target_fetch_registers.
(ps_lsetregs, ps_lsetfpregs): Use target_store_registers.
(solaris_pid_to_str): Remove check for libthread_db initialization
failing.
(sol_find_new_threads): Remove check for libthread_db
initialization failing, or for an invalid inferior_ptid. Adjust
to use find_target_beneath.
(sol_core_open, sol_core_close, sol_core_detach,
sol_core_files_info, sol_find_memory_regions,
sol_make_note_section, ignore): Delete.
(init_sol_thread_ops): Make it a thread_stratum target. Remove
unneeded callback settings.
(init_sol_core_ops): Delete.
(_initialize_sol_thread): No longer call init_sol_core_ops, set
procfs_suppress_run, or hack with core_ops.
* target.h (struct target_ops): Add a target_ops * parameter to
to_resume, to_fetch_registers, to_store_registers, to_thread_alive
and to_find_new_threads.
(target_fetch_registers, target_store_registers)
(target_thread_alive, target_find_new_threads): Redeclare as
function.
* target.c (update_current_target): Do not inherit or de_fault
to_resume, to_fetch_registers, to_store_registers,
to_thread_alive, to_find_new_threads.
(target_resume): Adjust.
(target_thread_alive, target_find_new_threads): New.
(debug_to_resume, debug_to_fetch_registers): Delete.
(target_fetch_registers): New.
(debug_to_store_registers): Delete.
(target_store_registers): New.
(debug_to_thread_alive, debug_to_find_new_threads): Delete.
(setup_target_debug): Adjust.
* gdbcore.h (core_ops): Delete declaration.
* inf-ptrace.c, linux-nat.c, remote.c, amd64-linux-nat.c,
inf-child.c, linux-thread-db.c, bsd-uthread.c, inf-ttrace.c,
i386-sol2-tdep.c, darwin-nat.c, gnu-nat.c, go32-nat.c,
hpux-thread.c, i386-linux-nat.c, i386fbsd-nat.c, monitor.c,
nto-procfs.c, remote-m32r-sdi.c, remote-mips.c, windows-nat.c,
alphabsd-nat.c, amd64bsd-nat.c, arm-linux-nat.c, armnbsd-nat.c,
bsd-kvm.c, hppa-hpux-nat.c, hppa-linux-nat.c, hppabsd-nat.c,
hppanbsd-nat.c, i386-darwin-nat.c, i386bsd-nat.c,
ia64-linux-nat.c, m32r-linux-nat.c, m68kbsd-nat.c,
m68klinux-nat.c, m88kbsd-nat.c, mips-linux-nat.c,
mips64obsd-nat.c, mipsnbsd-nat.c, ppc-linux-nat.c, ppcnbsd-nat.c,
ppcobsd-nat.c, remote-sim.c, rs6000-nat.c, s390-nat.c,
shnbsd-nat.c, sparc-nat.c, sparc-nat.h, spu-linux-nat.c,
vaxbsd-nat.c, xtensa-linux-nat.c: Adjust to target_ops changes.
* gdbarch.sh (core_pid_to_str): New gdbarch callback.
* gdbarch.h, gdbarch.c: Regenerate.
* sol2-tdep.c: Include "inferior.h".
(sol2_core_pid_to_str): New.
* sol2-tdep.h (sol2_core_pid_to_str): Declare.
* amd64-sol2-tdep.c (amd64_sol2_init_abi): Set it.
* sparc-sol2-tdep.c (sparc32_sol2_init_abi): Set it.
* sparc64-sol2-tdep.c (sparc64_sol2_init_abi): Set it.
* i386-sol2-tdep.c (i386_sol2_init_abi): Set it.
2009-02-23 01:03:50 +01:00
|
|
|
|
|
add target method delegation
This patch replaces some code in the record targets with target method
delegation.
record-full.c stores pointers to many target methods when the record
target is pushed. Then it later delegates some calls via these. This
is wrong because it violates the target stack contract. In particular
it is ok to unpush a target at any stratum, but record-full does not
keep track of this, so it could potentially call into an unpushed
target.
This patch fixes the problem by using the newly-introduced generic
approach to target delegation for the methods in question.
2014-02-19 Tom Tromey <tromey@redhat.com>
* record-full.c (record_full_beneath_to_resume_ops)
(record_full_beneath_to_resume, record_full_beneath_to_wait_ops)
(record_full_beneath_to_wait)
(record_full_beneath_to_store_registers_ops)
(record_full_beneath_to_store_registers)
(record_full_beneath_to_xfer_partial_ops)
(record_full_beneath_to_xfer_partial)
(record_full_beneath_to_insert_breakpoint_ops)
(record_full_beneath_to_insert_breakpoint)
(record_full_beneath_to_remove_breakpoint_ops)
(record_full_beneath_to_remove_breakpoint)
(record_full_beneath_to_stopped_by_watchpoint)
(record_full_beneath_to_stopped_data_address)
(record_full_beneath_to_async, tmp_to_resume_ops, tmp_to_resume)
(tmp_to_wait_ops, tmp_to_wait, tmp_to_store_registers_ops)
(tmp_to_store_registers, tmp_to_xfer_partial_ops)
(tmp_to_xfer_partial, tmp_to_instmp_to_insert_breakpoint_ops)
(tmp_to_insert_breakpoint, tmp_to_remove_breakpoint_ops)
(tmp_to_remove_breakpoint, tmp_to_stopped_by_watchpoint)
(tmp_to_stopped_data_address, tmp_to_async): Remove.
(record_full_open_1, record_full_open): Update. Use RECORD_IS_USED.
(record_full_resume, record_full_wait_1)
(record_full_stopped_by_watchpoint, record_full_stopped_data_address)
(record_full_store_registers, record_full_xfer_partial)
(record_full_insert_breakpoint, record_full_remove_breakpoint)
(record_full_async, record_full_core_xfer_partial): Use target
delegation.
* target-delegates.c: Rebuild.
* target.c (current_xfer_partial): Remove.
(update_current_target): Do not INHERIT or de_fault
to_insert_breakpoint, to_remove_breakpoint,
to_stopped_data_address, to_stopped_by_watchpoint, to_can_async_p,
to_is_async_p, to_async. Do not set to_xfer_partial field.
(default_xfer_partial): Simplify.
(current_xfer_partial): Remove.
(target_wait, target_resume): Simplify.
(find_default_can_async_p, find_default_is_async_p): Update.
(init_dummy_target): Don't set to_can_async_p, to_is_async_p,
to_xfer_partial, to_stopped_by_watchpoint,
to_stopped_data_address.
(target_store_registers): Simplify.
(forward_target_remove_breakpoint)
(forward_target_insert_breakpoint): Remove.
(target_remove_breakpoint, target_insert_breakpoint)
(debug_to_insert_breakpoint, debug_to_remove_breakpoint): Update.
* target.h (struct target_ops) <to_resume, to_wait,
to_store_registers, to_insert_breakpoint, to_remove_breakpoint,
to_stopped_by_watchpoint, to_stopped_data_address, to_can_async_p,
to_is_async_p, to_async, to_xfer_partial>: Add TARGET_DEFAULT
markup.
(forward_target_remove_breakpoint)
(forward_target_insert_breakpoint): Remove.
* record-btrace.c (record_btrace_remove_breakpoint): Delegate
directly.
(record_btrace_insert_breakpoint): Delegate directly.
2013-07-12 21:00:34 +02:00
|
|
|
|
registers_changed_ptid (ptid);
|
PR15693 - Fix spurious *running events, thread state, dprintf-style call
If one sets a breakpoint with a condition that involves calling a
function in the inferior, and then the condition evaluates false, GDB
outputs one *running event for each time the program hits the
breakpoint. E.g.,
$ gdb return-false -i=mi
(gdb)
start
...
(gdb)
b 14 if return_false ()
&"b 14 if return_false ()\n"
~"Breakpoint 2 at 0x4004eb: file return-false.c, line 14.\n"
...
^done
(gdb)
c
&"c\n"
~"Continuing.\n"
^running
*running,thread-id=(...)
(gdb)
*running,thread-id=(...)
*running,thread-id=(...)
*running,thread-id=(...)
*running,thread-id=(...)
*running,thread-id=(...)
... repeat forever ...
An easy way a user can trip on this is with a dprintf with "set
dprintf-style call". In that case, a dprintf is just a breakpoint
that when hit GDB calls the printf function in the inferior, and then
resumes it, just like the case above.
If the breakpoint/dprintf is set in a loop, then these spurious events
can potentially slow down a frontend much, if it decides to refresh
its GUI whenever it sees this event (Eclipse is one such case).
When we run an infcall, we pretend we don't actually run the inferior.
This is already handled for the usual case of calling a function
directly from the CLI:
(gdb)
p return_false ()
&"p return_false ()\n"
~"$1 = 0"
~"\n"
^done
(gdb)
Note no *running, nor *stopped events. That's handled by:
static void
mi_on_resume (ptid_t ptid)
{
...
/* Suppress output while calling an inferior function. */
if (tp->control.in_infcall)
return;
and equivalent code on normal_stop.
However, in the cases of the PR, after finishing the infcall there's
one more resume, and mi_on_resume doesn't know that it should suppress
output then too, somehow.
The "running/stopped" state is a high level user/frontend state.
Internal stops are invisible to the frontend. If follows from that
that we should be setting the thread to running at a higher level
where we still know the set of threads the user _intends_ to resume.
Currently we mark a thread as running from within target_resume, a low
level target operation. As consequence, today, if we resume a
multi-threaded program while stopped at a breakpoint, we see this:
-exec-continue
^running
*running,thread-id="1"
(gdb)
*running,thread-id="all"
The first *running was GDB stepping over the breakpoint, and the
second is GDB finally resuming everything.
Between those two *running's, threads other than "1" still have their
state set to stopped. That's bogus -- in async mode, this opens a
tiny window between both resumes where the user might try to run
another execution command to threads other than thread 1, and very
much confuse GDB.
That is, the "step" below should fail the "step", complaining that the
thread is running:
(gdb) c -a &
(gdb) thread 2
(gdb) step
IOW, threads that GDB happens to not resume immediately (say, because
it needs to step over a breakpoint) shall still be marked as running.
Then, if we move marking threads as running to a higher layer,
decoupled from target_resume, plus skip marking threads as running
when running an infcall, the spurious *running events disappear,
because there will be no state transitions at all.
I think we might end up adding a new thread state -- THREAD_INFCALL or
some such, however since infcalls are always synchronous today, I
didn't find a need. There's no way to execute a CLI/MI command
directly from the prompt if some thread is running an infcall.
Tested on x86_64 Fedora 20.
gdb/
2014-05-29 Pedro Alves <palves@redhat.com>
PR PR15693
* infrun.c (resume): Determine how much to resume depending on
whether the caller wanted a step, not whether we can hardware step
the target. Mark all threads that we intend to run as running,
unless we're calling an inferior function.
(normal_stop): If the thread is running an infcall, don't finish
thread state.
* target.c (target_resume): Don't mark threads as running here.
gdb/testsuite/
2014-05-29 Pedro Alves <palves@redhat.com>
Hui Zhu <hui@codesourcery.com>
PR PR15693
* gdb.mi/mi-condbreak-call-thr-state-mt.c: New file.
* gdb.mi/mi-condbreak-call-thr-state-st.c: New file.
* gdb.mi/mi-condbreak-call-thr-state.c: New file.
* gdb.mi/mi-condbreak-call-thr-state.exp: New file.
2014-05-29 13:27:01 +02:00
|
|
|
|
/* We only set the internal executing state here. The user/frontend
|
|
|
|
|
running state is set at a higher level. */
|
add target method delegation
This patch replaces some code in the record targets with target method
delegation.
record-full.c stores pointers to many target methods when the record
target is pushed. Then it later delegates some calls via these. This
is wrong because it violates the target stack contract. In particular
it is ok to unpush a target at any stratum, but record-full does not
keep track of this, so it could potentially call into an unpushed
target.
This patch fixes the problem by using the newly-introduced generic
approach to target delegation for the methods in question.
2014-02-19 Tom Tromey <tromey@redhat.com>
* record-full.c (record_full_beneath_to_resume_ops)
(record_full_beneath_to_resume, record_full_beneath_to_wait_ops)
(record_full_beneath_to_wait)
(record_full_beneath_to_store_registers_ops)
(record_full_beneath_to_store_registers)
(record_full_beneath_to_xfer_partial_ops)
(record_full_beneath_to_xfer_partial)
(record_full_beneath_to_insert_breakpoint_ops)
(record_full_beneath_to_insert_breakpoint)
(record_full_beneath_to_remove_breakpoint_ops)
(record_full_beneath_to_remove_breakpoint)
(record_full_beneath_to_stopped_by_watchpoint)
(record_full_beneath_to_stopped_data_address)
(record_full_beneath_to_async, tmp_to_resume_ops, tmp_to_resume)
(tmp_to_wait_ops, tmp_to_wait, tmp_to_store_registers_ops)
(tmp_to_store_registers, tmp_to_xfer_partial_ops)
(tmp_to_xfer_partial, tmp_to_instmp_to_insert_breakpoint_ops)
(tmp_to_insert_breakpoint, tmp_to_remove_breakpoint_ops)
(tmp_to_remove_breakpoint, tmp_to_stopped_by_watchpoint)
(tmp_to_stopped_data_address, tmp_to_async): Remove.
(record_full_open_1, record_full_open): Update. Use RECORD_IS_USED.
(record_full_resume, record_full_wait_1)
(record_full_stopped_by_watchpoint, record_full_stopped_data_address)
(record_full_store_registers, record_full_xfer_partial)
(record_full_insert_breakpoint, record_full_remove_breakpoint)
(record_full_async, record_full_core_xfer_partial): Use target
delegation.
* target-delegates.c: Rebuild.
* target.c (current_xfer_partial): Remove.
(update_current_target): Do not INHERIT or de_fault
to_insert_breakpoint, to_remove_breakpoint,
to_stopped_data_address, to_stopped_by_watchpoint, to_can_async_p,
to_is_async_p, to_async. Do not set to_xfer_partial field.
(default_xfer_partial): Simplify.
(current_xfer_partial): Remove.
(target_wait, target_resume): Simplify.
(find_default_can_async_p, find_default_is_async_p): Update.
(init_dummy_target): Don't set to_can_async_p, to_is_async_p,
to_xfer_partial, to_stopped_by_watchpoint,
to_stopped_data_address.
(target_store_registers): Simplify.
(forward_target_remove_breakpoint)
(forward_target_insert_breakpoint): Remove.
(target_remove_breakpoint, target_insert_breakpoint)
(debug_to_insert_breakpoint, debug_to_remove_breakpoint): Update.
* target.h (struct target_ops) <to_resume, to_wait,
to_store_registers, to_insert_breakpoint, to_remove_breakpoint,
to_stopped_by_watchpoint, to_stopped_data_address, to_can_async_p,
to_is_async_p, to_async, to_xfer_partial>: Add TARGET_DEFAULT
markup.
(forward_target_remove_breakpoint)
(forward_target_insert_breakpoint): Remove.
* record-btrace.c (record_btrace_remove_breakpoint): Delegate
directly.
(record_btrace_insert_breakpoint): Delegate directly.
2013-07-12 21:00:34 +02:00
|
|
|
|
set_executing (ptid, 1);
|
|
|
|
|
clear_inline_frame_state (ptid);
|
2008-06-10 12:23:54 +02:00
|
|
|
|
}
|
2011-04-27 15:29:15 +02:00
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_pass_signals (int numsigs, unsigned char *pass_signals)
|
|
|
|
|
{
|
2013-12-18 22:42:10 +01:00
|
|
|
|
(*current_target.to_pass_signals) (¤t_target, numsigs, pass_signals);
|
2011-04-27 15:29:15 +02:00
|
|
|
|
}
|
|
|
|
|
|
2012-03-07 20:25:39 +01:00
|
|
|
|
void
|
|
|
|
|
target_program_signals (int numsigs, unsigned char *program_signals)
|
|
|
|
|
{
|
2013-12-18 22:42:54 +01:00
|
|
|
|
(*current_target.to_program_signals) (¤t_target,
|
|
|
|
|
numsigs, program_signals);
|
2012-03-07 20:25:39 +01:00
|
|
|
|
}
|
|
|
|
|
|
2013-12-18 22:38:04 +01:00
|
|
|
|
static int
|
|
|
|
|
default_follow_fork (struct target_ops *self, int follow_child,
|
|
|
|
|
int detach_fork)
|
|
|
|
|
{
|
|
|
|
|
/* Some target returned a fork event, but did not know how to follow it. */
|
|
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
|
_("could not find a target to follow fork"));
|
|
|
|
|
}
|
|
|
|
|
|
2005-09-04 18:18:20 +02:00
|
|
|
|
/* Look through the list of possible targets for a target that can
|
|
|
|
|
follow forks. */
|
|
|
|
|
|
|
|
|
|
int
|
2013-09-03 19:22:45 +02:00
|
|
|
|
target_follow_fork (int follow_child, int detach_fork)
|
2005-09-04 18:18:20 +02:00
|
|
|
|
{
|
auto-generate most target debug methods
The target debug methods are inconsistently maintained. Most to_*
methods have some kind of targetdebug awareness, but not all of them
do. The ones that do vary in the quantity and quality of output they
generate.
This patch changes most of the target debug methods to be
automatically generated. All the arguments are printed, and separate
lines are printed for entering and existing the outermost call to the
target stack.
For example now you'd see:
-> multi-thread->to_terminal_ours (...)
-> multi-thread->to_is_async_p (...)
<- multi-thread->to_is_async_p (0x1ebb580) = 1
<- multi-thread->to_terminal_ours (0x1ebb580)
-> multi-thread->to_thread_address_space (...)
<- multi-thread->to_thread_address_space (0x1ebb580, 26802) = 1
In this case you can see nested calls. The "multi-thread" on the left
hand side is the topmost target's shortname.
There are some oddities with this patch. I'm on the fence about it
all, I really just wrote it on a whim.
It's not simple to convert every possible method, since a few don't
participate in target delegation.
Printing is done by type, so I introduced some new
debug-printing-specific typedefs to handle cases where it is nicer to
do something else.
On the plus side, this lays the groundwork for making targetdebug
affect every layer of the target stack. The idea would be to wrap
each target_ops in the stack with its own debug_target, and then you
could see calls propagate down the stack and back up; I suppose with
indentation to make it prettier. (That said there are some gotchas
lurking in this idea due to target stack introspection.)
Regtested on x86-64 Fedora 20.
2014-07-24 Tom Tromey <tromey@redhat.com>
* make-target-delegates (munge_type, write_debugmethod): New
functions.
(debug_names): New global.
($TARGET_DEBUG_PRINTER): New global.
(write_function_header): Strip TARGET_DEBUG_PRINTER from the type
name.
Write debug methods. Generate init_debug_target.
* target-debug.h: New file.
* target-delegates.c: Rebuild.
* target.c: Include target-debug.h.
(debug_target): Hoist definition.
(target_kill, target_get_section_table, target_memory_map)
(target_flash_erase, target_flash_done, target_detach)
(target_disconnect, target_wait, target_resume)
(target_pass_signals, target_program_signals, target_follow_fork)
(target_mourn_inferior, target_search_memory)
(target_thread_address_space, target_close)
(target_find_new_threads, target_core_of_thread)
(target_verify_memory, target_insert_mask_watchpoint)
(target_remove_mask_watchpoint): Remove targetdebug code.
(debug_to_post_attach, debug_to_prepare_to_store)
(debug_to_files_info, debug_to_insert_breakpoint)
(debug_to_remove_breakpoint, debug_to_can_use_hw_breakpoint)
(debug_to_region_ok_for_hw_watchpoint)
(debug_to_can_accel_watchpoint_condition)
(debug_to_stopped_by_watchpoint, debug_to_stopped_data_address)
(debug_to_watchpoint_addr_within_range)
(debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint)
(debug_to_insert_watchpoint, debug_to_remove_watchpoint)
(debug_to_terminal_init, debug_to_terminal_inferior)
(debug_to_terminal_ours_for_output, debug_to_terminal_ours)
(debug_to_terminal_save_ours, debug_to_terminal_info)
(debug_to_load, debug_to_post_startup_inferior)
(debug_to_insert_fork_catchpoint)
(debug_to_remove_fork_catchpoint)
(debug_to_insert_vfork_catchpoint)
(debug_to_remove_vfork_catchpoint)
(debug_to_insert_exec_catchpoint)
(debug_to_remove_exec_catchpoint, debug_to_has_exited)
(debug_to_can_run, debug_to_thread_architecture, debug_to_stop)
(debug_to_rcmd, debug_to_pid_to_exec_file): Remove.
(setup_target_debug): Call init_debug_target.
* target.h (TARGET_DEBUG_PRINTER): New macro.
(struct target_ops) <to_resume, to_wait, to_pass_signals,
to_program_signals>: Use TARGET_DEBUG_PRINTER.
2014-06-16 05:28:57 +02:00
|
|
|
|
return current_target.to_follow_fork (¤t_target,
|
|
|
|
|
follow_child, detach_fork);
|
2005-09-04 18:18:20 +02:00
|
|
|
|
}
|
|
|
|
|
|
2013-12-18 22:40:23 +01:00
|
|
|
|
static void
|
|
|
|
|
default_mourn_inferior (struct target_ops *self)
|
|
|
|
|
{
|
|
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
|
_("could not find a target to follow mourn inferior"));
|
|
|
|
|
}
|
|
|
|
|
|
Kill pthread_ops_hack
* target.h (struct target_ops): Make to_attach, to_detach,
to_create_inferior and to_mourn_inferior accept a pointer
to struct target_ops.
(target_attach, target_create_inferior, target_create_inferior):
Convert from macros to function. Find the right target to
invoke a method of.
(find_default_attach, find_default_create_inferior): New parameter
ops.
* corefile.c (core_file_command): Pass target to to_detach.
* corelow.c (core_detach): Add 'ops' parameter.
* fork-child.c (fork_inferior): Return the pid. Allow
init_trace_fun to be NULL.
* inf-ptrace (ptrace_ops_hack): Remove.
(inf_ptrace_him): Remove, moving all logic into....
(inf_ptrace_create_inferior): ... here. Push the target
passed as parameter.
(inf_ptrace_mourn_inferior, inf_ptrace_attach, inf_ptrace_detach):
Push/pop target passed as parameter, no ptrace_ops_hack.
(inf_ptrace_target): Don't remember result.
* inferior.h (fork_inferior): Adjust prototype.
* linux-nat.c (linux_nat_create_inferior, linux_nat_attach)
(linux_nat_detach, linux_nat_mourn_inferior): New parameter ops.
Pass it to linux_ops target.
* linux-thread-db.c (thread_db_detach, thread_db_mourn_inferior):
New parameter ops. Pass it to the target beneath.
* remote.c (remote_mourn, extended_remote_mourn, remote_detach)
(extended_remote_create_inferior): New parameter ops. Pass it
further.
* target.c (debug_to_attach, debug_to_detach)
(debug_to_mourn_inferior): New parameter ops.
(target_create_inferior): New.
(update_current_target): Do not inherit to_attach, to_detach,
to_create_inferiour, to_mourn_inferior. Do not default
to_detach and to_mourn_inferior.
(target_detach): Find the right target to use.
(target_mourn_inferior): New.
(find_default_attach, find_default_create_inferior): New parameter
ops. Pass the found target when calling its method.
(init_dummy_target): Provide fallback definition of to_detach.
(target_attach): New.
(debug_to_attach, debug_to_detach, debug_to_create_inferior)
(debug_to_mourn_inferiour): New parameter ops.
* aix-thread.c: Adjust.
* bsd-uthread.c: Adjust.
* gnu-nat.c: Adjust.
* go32-nat.c: Adjust.
* hpux-thread.c: Adjust.
* inf-ttrace.c: Ajust.
* monitor.c: Adjust.
* nto-procfs.c: Adjust.
* procfs.c: Adjust.
* remote-m32r-sdi.c: Adjust.
* remote-mips.c: Adjust.
* remote-sim.c: Adjust.
* rs6000-nat.c: Adjust.
* sol-thread.c: Adjust.
* win32-nat.c: Adjust.
* dec-thread.c: Adjust.
2008-11-09 12:27:18 +01:00
|
|
|
|
void
|
|
|
|
|
target_mourn_inferior (void)
|
|
|
|
|
{
|
2013-12-18 22:40:23 +01:00
|
|
|
|
current_target.to_mourn_inferior (¤t_target);
|
Kill pthread_ops_hack
* target.h (struct target_ops): Make to_attach, to_detach,
to_create_inferior and to_mourn_inferior accept a pointer
to struct target_ops.
(target_attach, target_create_inferior, target_create_inferior):
Convert from macros to function. Find the right target to
invoke a method of.
(find_default_attach, find_default_create_inferior): New parameter
ops.
* corefile.c (core_file_command): Pass target to to_detach.
* corelow.c (core_detach): Add 'ops' parameter.
* fork-child.c (fork_inferior): Return the pid. Allow
init_trace_fun to be NULL.
* inf-ptrace (ptrace_ops_hack): Remove.
(inf_ptrace_him): Remove, moving all logic into....
(inf_ptrace_create_inferior): ... here. Push the target
passed as parameter.
(inf_ptrace_mourn_inferior, inf_ptrace_attach, inf_ptrace_detach):
Push/pop target passed as parameter, no ptrace_ops_hack.
(inf_ptrace_target): Don't remember result.
* inferior.h (fork_inferior): Adjust prototype.
* linux-nat.c (linux_nat_create_inferior, linux_nat_attach)
(linux_nat_detach, linux_nat_mourn_inferior): New parameter ops.
Pass it to linux_ops target.
* linux-thread-db.c (thread_db_detach, thread_db_mourn_inferior):
New parameter ops. Pass it to the target beneath.
* remote.c (remote_mourn, extended_remote_mourn, remote_detach)
(extended_remote_create_inferior): New parameter ops. Pass it
further.
* target.c (debug_to_attach, debug_to_detach)
(debug_to_mourn_inferior): New parameter ops.
(target_create_inferior): New.
(update_current_target): Do not inherit to_attach, to_detach,
to_create_inferiour, to_mourn_inferior. Do not default
to_detach and to_mourn_inferior.
(target_detach): Find the right target to use.
(target_mourn_inferior): New.
(find_default_attach, find_default_create_inferior): New parameter
ops. Pass the found target when calling its method.
(init_dummy_target): Provide fallback definition of to_detach.
(target_attach): New.
(debug_to_attach, debug_to_detach, debug_to_create_inferior)
(debug_to_mourn_inferiour): New parameter ops.
* aix-thread.c: Adjust.
* bsd-uthread.c: Adjust.
* gnu-nat.c: Adjust.
* go32-nat.c: Adjust.
* hpux-thread.c: Adjust.
* inf-ttrace.c: Ajust.
* monitor.c: Adjust.
* nto-procfs.c: Adjust.
* procfs.c: Adjust.
* remote-m32r-sdi.c: Adjust.
* remote-mips.c: Adjust.
* remote-sim.c: Adjust.
* rs6000-nat.c: Adjust.
* sol-thread.c: Adjust.
* win32-nat.c: Adjust.
* dec-thread.c: Adjust.
2008-11-09 12:27:18 +01:00
|
|
|
|
|
2013-12-18 22:40:23 +01:00
|
|
|
|
/* We no longer need to keep handles on any of the object files.
|
|
|
|
|
Make sure to release them to avoid unnecessarily locking any
|
|
|
|
|
of them while we're not actually debugging. */
|
|
|
|
|
bfd_cache_close_all ();
|
Kill pthread_ops_hack
* target.h (struct target_ops): Make to_attach, to_detach,
to_create_inferior and to_mourn_inferior accept a pointer
to struct target_ops.
(target_attach, target_create_inferior, target_create_inferior):
Convert from macros to function. Find the right target to
invoke a method of.
(find_default_attach, find_default_create_inferior): New parameter
ops.
* corefile.c (core_file_command): Pass target to to_detach.
* corelow.c (core_detach): Add 'ops' parameter.
* fork-child.c (fork_inferior): Return the pid. Allow
init_trace_fun to be NULL.
* inf-ptrace (ptrace_ops_hack): Remove.
(inf_ptrace_him): Remove, moving all logic into....
(inf_ptrace_create_inferior): ... here. Push the target
passed as parameter.
(inf_ptrace_mourn_inferior, inf_ptrace_attach, inf_ptrace_detach):
Push/pop target passed as parameter, no ptrace_ops_hack.
(inf_ptrace_target): Don't remember result.
* inferior.h (fork_inferior): Adjust prototype.
* linux-nat.c (linux_nat_create_inferior, linux_nat_attach)
(linux_nat_detach, linux_nat_mourn_inferior): New parameter ops.
Pass it to linux_ops target.
* linux-thread-db.c (thread_db_detach, thread_db_mourn_inferior):
New parameter ops. Pass it to the target beneath.
* remote.c (remote_mourn, extended_remote_mourn, remote_detach)
(extended_remote_create_inferior): New parameter ops. Pass it
further.
* target.c (debug_to_attach, debug_to_detach)
(debug_to_mourn_inferior): New parameter ops.
(target_create_inferior): New.
(update_current_target): Do not inherit to_attach, to_detach,
to_create_inferiour, to_mourn_inferior. Do not default
to_detach and to_mourn_inferior.
(target_detach): Find the right target to use.
(target_mourn_inferior): New.
(find_default_attach, find_default_create_inferior): New parameter
ops. Pass the found target when calling its method.
(init_dummy_target): Provide fallback definition of to_detach.
(target_attach): New.
(debug_to_attach, debug_to_detach, debug_to_create_inferior)
(debug_to_mourn_inferiour): New parameter ops.
* aix-thread.c: Adjust.
* bsd-uthread.c: Adjust.
* gnu-nat.c: Adjust.
* go32-nat.c: Adjust.
* hpux-thread.c: Adjust.
* inf-ttrace.c: Ajust.
* monitor.c: Adjust.
* nto-procfs.c: Adjust.
* procfs.c: Adjust.
* remote-m32r-sdi.c: Adjust.
* remote-mips.c: Adjust.
* remote-sim.c: Adjust.
* rs6000-nat.c: Adjust.
* sol-thread.c: Adjust.
* win32-nat.c: Adjust.
* dec-thread.c: Adjust.
2008-11-09 12:27:18 +01:00
|
|
|
|
}
|
|
|
|
|
|
2006-11-28 23:10:26 +01:00
|
|
|
|
/* Look for a target which can describe architectural features, starting
|
|
|
|
|
from TARGET. If we find one, return its description. */
|
|
|
|
|
|
|
|
|
|
const struct target_desc *
|
|
|
|
|
target_read_description (struct target_ops *target)
|
|
|
|
|
{
|
2014-01-13 17:30:30 +01:00
|
|
|
|
return target->to_read_description (target);
|
2006-11-28 23:10:26 +01:00
|
|
|
|
}
|
|
|
|
|
|
2013-12-19 16:12:26 +01:00
|
|
|
|
/* This implements a basic search of memory, reading target memory and
|
2008-05-09 19:02:03 +02:00
|
|
|
|
performing the search here (as opposed to performing the search in on the
|
|
|
|
|
target side with, for example, gdbserver). */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
simple_search_memory (struct target_ops *ops,
|
|
|
|
|
CORE_ADDR start_addr, ULONGEST search_space_len,
|
|
|
|
|
const gdb_byte *pattern, ULONGEST pattern_len,
|
|
|
|
|
CORE_ADDR *found_addrp)
|
|
|
|
|
{
|
|
|
|
|
/* NOTE: also defined in find.c testcase. */
|
|
|
|
|
#define SEARCH_CHUNK_SIZE 16000
|
|
|
|
|
const unsigned chunk_size = SEARCH_CHUNK_SIZE;
|
|
|
|
|
/* Buffer to hold memory contents for searching. */
|
|
|
|
|
gdb_byte *search_buf;
|
|
|
|
|
unsigned search_buf_size;
|
|
|
|
|
struct cleanup *old_cleanups;
|
|
|
|
|
|
|
|
|
|
search_buf_size = chunk_size + pattern_len - 1;
|
|
|
|
|
|
|
|
|
|
/* No point in trying to allocate a buffer larger than the search space. */
|
|
|
|
|
if (search_space_len < search_buf_size)
|
|
|
|
|
search_buf_size = search_space_len;
|
|
|
|
|
|
|
|
|
|
search_buf = malloc (search_buf_size);
|
|
|
|
|
if (search_buf == NULL)
|
2008-05-09 19:37:36 +02:00
|
|
|
|
error (_("Unable to allocate memory to perform the search."));
|
2008-05-09 19:02:03 +02:00
|
|
|
|
old_cleanups = make_cleanup (free_current_contents, &search_buf);
|
|
|
|
|
|
|
|
|
|
/* Prime the search buffer. */
|
|
|
|
|
|
|
|
|
|
if (target_read (ops, TARGET_OBJECT_MEMORY, NULL,
|
|
|
|
|
search_buf, start_addr, search_buf_size) != search_buf_size)
|
|
|
|
|
{
|
2012-10-01 14:02:13 +02:00
|
|
|
|
warning (_("Unable to access %s bytes of target "
|
|
|
|
|
"memory at %s, halting search."),
|
|
|
|
|
pulongest (search_buf_size), hex_string (start_addr));
|
2008-05-09 19:02:03 +02:00
|
|
|
|
do_cleanups (old_cleanups);
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Perform the search.
|
|
|
|
|
|
|
|
|
|
The loop is kept simple by allocating [N + pattern-length - 1] bytes.
|
|
|
|
|
When we've scanned N bytes we copy the trailing bytes to the start and
|
|
|
|
|
read in another N bytes. */
|
|
|
|
|
|
|
|
|
|
while (search_space_len >= pattern_len)
|
|
|
|
|
{
|
|
|
|
|
gdb_byte *found_ptr;
|
|
|
|
|
unsigned nr_search_bytes = min (search_space_len, search_buf_size);
|
|
|
|
|
|
|
|
|
|
found_ptr = memmem (search_buf, nr_search_bytes,
|
|
|
|
|
pattern, pattern_len);
|
|
|
|
|
|
|
|
|
|
if (found_ptr != NULL)
|
|
|
|
|
{
|
|
|
|
|
CORE_ADDR found_addr = start_addr + (found_ptr - search_buf);
|
2010-05-17 03:15:20 +02:00
|
|
|
|
|
2008-05-09 19:02:03 +02:00
|
|
|
|
*found_addrp = found_addr;
|
|
|
|
|
do_cleanups (old_cleanups);
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Not found in this chunk, skip to next chunk. */
|
|
|
|
|
|
|
|
|
|
/* Don't let search_space_len wrap here, it's unsigned. */
|
|
|
|
|
if (search_space_len >= chunk_size)
|
|
|
|
|
search_space_len -= chunk_size;
|
|
|
|
|
else
|
|
|
|
|
search_space_len = 0;
|
|
|
|
|
|
|
|
|
|
if (search_space_len >= pattern_len)
|
|
|
|
|
{
|
|
|
|
|
unsigned keep_len = search_buf_size - chunk_size;
|
2009-10-29 21:12:26 +01:00
|
|
|
|
CORE_ADDR read_addr = start_addr + chunk_size + keep_len;
|
2008-05-09 19:02:03 +02:00
|
|
|
|
int nr_to_read;
|
|
|
|
|
|
|
|
|
|
/* Copy the trailing part of the previous iteration to the front
|
|
|
|
|
of the buffer for the next iteration. */
|
|
|
|
|
gdb_assert (keep_len == pattern_len - 1);
|
|
|
|
|
memcpy (search_buf, search_buf + chunk_size, keep_len);
|
|
|
|
|
|
|
|
|
|
nr_to_read = min (search_space_len - keep_len, chunk_size);
|
|
|
|
|
|
|
|
|
|
if (target_read (ops, TARGET_OBJECT_MEMORY, NULL,
|
|
|
|
|
search_buf + keep_len, read_addr,
|
|
|
|
|
nr_to_read) != nr_to_read)
|
|
|
|
|
{
|
2012-10-01 14:02:13 +02:00
|
|
|
|
warning (_("Unable to access %s bytes of target "
|
2011-01-11 16:10:03 +01:00
|
|
|
|
"memory at %s, halting search."),
|
2012-10-01 14:02:13 +02:00
|
|
|
|
plongest (nr_to_read),
|
2008-05-09 19:02:03 +02:00
|
|
|
|
hex_string (read_addr));
|
|
|
|
|
do_cleanups (old_cleanups);
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
start_addr += chunk_size;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Not found. */
|
|
|
|
|
|
|
|
|
|
do_cleanups (old_cleanups);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2013-12-19 16:12:26 +01:00
|
|
|
|
/* Default implementation of memory-searching. */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
default_search_memory (struct target_ops *self,
|
|
|
|
|
CORE_ADDR start_addr, ULONGEST search_space_len,
|
|
|
|
|
const gdb_byte *pattern, ULONGEST pattern_len,
|
|
|
|
|
CORE_ADDR *found_addrp)
|
|
|
|
|
{
|
|
|
|
|
/* Start over from the top of the target stack. */
|
|
|
|
|
return simple_search_memory (current_target.beneath,
|
|
|
|
|
start_addr, search_space_len,
|
|
|
|
|
pattern, pattern_len, found_addrp);
|
|
|
|
|
}
|
|
|
|
|
|
2008-05-09 19:02:03 +02:00
|
|
|
|
/* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the
|
|
|
|
|
sequence of bytes in PATTERN with length PATTERN_LEN.
|
|
|
|
|
|
|
|
|
|
The result is 1 if found, 0 if not found, and -1 if there was an error
|
|
|
|
|
requiring halting of the search (e.g. memory read error).
|
|
|
|
|
If the pattern is found the address is recorded in FOUND_ADDRP. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len,
|
|
|
|
|
const gdb_byte *pattern, ULONGEST pattern_len,
|
|
|
|
|
CORE_ADDR *found_addrp)
|
|
|
|
|
{
|
auto-generate most target debug methods
The target debug methods are inconsistently maintained. Most to_*
methods have some kind of targetdebug awareness, but not all of them
do. The ones that do vary in the quantity and quality of output they
generate.
This patch changes most of the target debug methods to be
automatically generated. All the arguments are printed, and separate
lines are printed for entering and existing the outermost call to the
target stack.
For example now you'd see:
-> multi-thread->to_terminal_ours (...)
-> multi-thread->to_is_async_p (...)
<- multi-thread->to_is_async_p (0x1ebb580) = 1
<- multi-thread->to_terminal_ours (0x1ebb580)
-> multi-thread->to_thread_address_space (...)
<- multi-thread->to_thread_address_space (0x1ebb580, 26802) = 1
In this case you can see nested calls. The "multi-thread" on the left
hand side is the topmost target's shortname.
There are some oddities with this patch. I'm on the fence about it
all, I really just wrote it on a whim.
It's not simple to convert every possible method, since a few don't
participate in target delegation.
Printing is done by type, so I introduced some new
debug-printing-specific typedefs to handle cases where it is nicer to
do something else.
On the plus side, this lays the groundwork for making targetdebug
affect every layer of the target stack. The idea would be to wrap
each target_ops in the stack with its own debug_target, and then you
could see calls propagate down the stack and back up; I suppose with
indentation to make it prettier. (That said there are some gotchas
lurking in this idea due to target stack introspection.)
Regtested on x86-64 Fedora 20.
2014-07-24 Tom Tromey <tromey@redhat.com>
* make-target-delegates (munge_type, write_debugmethod): New
functions.
(debug_names): New global.
($TARGET_DEBUG_PRINTER): New global.
(write_function_header): Strip TARGET_DEBUG_PRINTER from the type
name.
Write debug methods. Generate init_debug_target.
* target-debug.h: New file.
* target-delegates.c: Rebuild.
* target.c: Include target-debug.h.
(debug_target): Hoist definition.
(target_kill, target_get_section_table, target_memory_map)
(target_flash_erase, target_flash_done, target_detach)
(target_disconnect, target_wait, target_resume)
(target_pass_signals, target_program_signals, target_follow_fork)
(target_mourn_inferior, target_search_memory)
(target_thread_address_space, target_close)
(target_find_new_threads, target_core_of_thread)
(target_verify_memory, target_insert_mask_watchpoint)
(target_remove_mask_watchpoint): Remove targetdebug code.
(debug_to_post_attach, debug_to_prepare_to_store)
(debug_to_files_info, debug_to_insert_breakpoint)
(debug_to_remove_breakpoint, debug_to_can_use_hw_breakpoint)
(debug_to_region_ok_for_hw_watchpoint)
(debug_to_can_accel_watchpoint_condition)
(debug_to_stopped_by_watchpoint, debug_to_stopped_data_address)
(debug_to_watchpoint_addr_within_range)
(debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint)
(debug_to_insert_watchpoint, debug_to_remove_watchpoint)
(debug_to_terminal_init, debug_to_terminal_inferior)
(debug_to_terminal_ours_for_output, debug_to_terminal_ours)
(debug_to_terminal_save_ours, debug_to_terminal_info)
(debug_to_load, debug_to_post_startup_inferior)
(debug_to_insert_fork_catchpoint)
(debug_to_remove_fork_catchpoint)
(debug_to_insert_vfork_catchpoint)
(debug_to_remove_vfork_catchpoint)
(debug_to_insert_exec_catchpoint)
(debug_to_remove_exec_catchpoint, debug_to_has_exited)
(debug_to_can_run, debug_to_thread_architecture, debug_to_stop)
(debug_to_rcmd, debug_to_pid_to_exec_file): Remove.
(setup_target_debug): Call init_debug_target.
* target.h (TARGET_DEBUG_PRINTER): New macro.
(struct target_ops) <to_resume, to_wait, to_pass_signals,
to_program_signals>: Use TARGET_DEBUG_PRINTER.
2014-06-16 05:28:57 +02:00
|
|
|
|
return current_target.to_search_memory (¤t_target, start_addr,
|
|
|
|
|
search_space_len,
|
|
|
|
|
pattern, pattern_len, found_addrp);
|
2008-05-09 19:02:03 +02:00
|
|
|
|
}
|
|
|
|
|
|
2008-02-28 17:26:18 +01:00
|
|
|
|
/* Look through the currently pushed targets. If none of them will
|
|
|
|
|
be able to restart the currently running process, issue an error
|
|
|
|
|
message. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_require_runnable (void)
|
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
|
|
|
|
for (t = target_stack; t != NULL; t = t->beneath)
|
|
|
|
|
{
|
|
|
|
|
/* If this target knows how to create a new program, then
|
|
|
|
|
assume we will still be able to after killing the current
|
|
|
|
|
one. Either killing and mourning will not pop T, or else
|
|
|
|
|
find_default_run_target will find it again. */
|
|
|
|
|
if (t->to_create_inferior != NULL)
|
|
|
|
|
return;
|
|
|
|
|
|
2014-07-01 19:43:00 +02:00
|
|
|
|
/* Do not worry about targets at certain strata that can not
|
2008-02-28 17:26:18 +01:00
|
|
|
|
create inferiors. Assume they will be pushed again if
|
|
|
|
|
necessary, and continue to the process_stratum. */
|
2009-07-31 17:28:27 +02:00
|
|
|
|
if (t->to_stratum == thread_stratum
|
2014-07-01 19:43:00 +02:00
|
|
|
|
|| t->to_stratum == record_stratum
|
2009-07-31 17:28:27 +02:00
|
|
|
|
|| t->to_stratum == arch_stratum)
|
2008-02-28 17:26:18 +01:00
|
|
|
|
continue;
|
|
|
|
|
|
2011-01-05 23:22:53 +01:00
|
|
|
|
error (_("The \"%s\" target does not support \"run\". "
|
|
|
|
|
"Try \"help target\" or \"continue\"."),
|
2008-02-28 17:26:18 +01:00
|
|
|
|
t->to_shortname);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This function is only called if the target is running. In that
|
|
|
|
|
case there should have been a process_stratum target and it
|
2011-01-11 22:53:25 +01:00
|
|
|
|
should either know how to create inferiors, or not... */
|
2011-01-11 16:10:03 +01:00
|
|
|
|
internal_error (__FILE__, __LINE__, _("No targets found"));
|
2008-02-28 17:26:18 +01:00
|
|
|
|
}
|
|
|
|
|
|
Allow making GDB not automatically connect to the native target.
Sometimes it's useful to be able to disable the automatic connection
to the native target. E.g., sometimes GDB disconnects from the
extended-remote target I was debugging, without me noticing it, and
then I do "run". That starts the program locally, and only after a
little head scratch session do I figure out the program is running
locally instead of remotely as intended. Same thing with "attach",
"info os", etc.
With the patch, we now can have this instead:
(gdb) set auto-connect-native-target off
(gdb) target extended-remote :9999
...
*gdb disconnects*
(gdb) run
Don't know how to run. Try "help target".
To still be able to connect to the native target with
auto-connect-native-target set to off, I've made "target native" work
instead of erroring out as today.
Before:
(gdb) target native
Use the "run" command to start a native process.
After:
(gdb) target native
Done. Use the "run" command to start a process.
(gdb) maint print target-stack
The current target stack is:
- native (Native process)
- exec (Local exec file)
- None (None)
(gdb) run
Starting program: ./a.out
...
I've also wanted this for the testsuite, when running against the
native-extended-gdbserver.exp board (runs against gdbserver in
extended-remote mode). With a non-native-target board, it's always a
bug to launch a program with the native target. Turns out we still
have one such case this patch catches:
(gdb) break main
Breakpoint 1 at 0x4009e5: file ../../../src/gdb/testsuite/gdb.base/coremaker.c, line 138.
(gdb) run
Don't know how to run. Try "help target".
(gdb) FAIL: gdb.base/corefile.exp: run: with core
On the patch itself, probably the least obvious bit is the need to go
through all targets, and move the unpush_target call to after the
generic_mourn_inferior call instead of before. This is what
inf-ptrace.c does too, ever since multi-process support was added.
The reason inf-ptrace.c does things in that order is that in the
current multi-process/single-target model, we shouldn't unpush the
target if there are still other live inferiors being debugged. The
check for that is "have_inferiors ()" (a misnomer nowadays...), which
does:
have_inferiors (void)
{
for (inf = inferior_list; inf; inf = inf->next)
if (inf->pid != 0)
return 1;
It's generic_mourn_inferior that ends up clearing inf->pid, so we need
to call it before the have_inferiors check. To make all native
targets behave the same WRT to explicit "target native", I've added an
inf_child_maybe_unpush_target function that targets call instead of
calling unpush_target directly, and as that includes the
have_inferiors check, I needed to adjust the targets.
Tested on x86_64 Fedora 20, native, and also with the
extended-gdbserver board.
Confirmed a cross build of djgpp gdb still builds.
Smoke tested a cross build of Windows gdb under Wine.
Untested otherwise.
gdb/
2014-05-21 Pedro Alves <palves@redhat.com>
* inf-child.c (inf_child_ops, inf_child_explicitly_opened): New
globals.
(inf_child_open_target): New function.
(inf_child_open): Use inf_child_open_target to push the target
instead of erroring out.
(inf_child_disconnect, inf_child_close)
(inf_child_maybe_unpush_target): New functions.
(inf_child_target): Install inf_child_disconnect and
inf_child_close. Store a pointer to the returned object.
* inf-child.h (inf_child_open_target, inf_child_maybe_unpush): New
declarations.
* target.c (auto_connect_native_target): New global.
(show_default_run_target): New function.
(find_default_run_target): Return NULL if automatically connecting
to the native target is disabled.
(_initialize_target): Install set/show auto-connect-native-target.
* NEWS: Mention "set auto-connect-native-target", and "target
native".
* linux-nat.c (super_close): New global.
(linux_nat_close): Call super_close.
(linux_nat_add_target): Store a pointer to the base class's
to_close method.
* inf-ptrace.c (inf_ptrace_mourn_inferior, inf_ptrace_detach): Use
inf_child_maybe_unpush.
* inf-ttrace.c (inf_ttrace_him): Don't push the target if it is
already pushed.
(inf_ttrace_mourn_inferior): Only unpush the target after mourning
the inferior. Use inf_child_maybe_unpush_target.
(inf_ttrace_attach): Don't push the target if it is already
pushed.
(inf_ttrace_detach): Use inf_child_maybe_unpush_target.
* darwin-nat.c (darwin_mourn_inferior): Only unpush the target
after mourning the inferior. Use inf_child_maybe_unpush_target.
(darwin_attach_pid): Don't push the target if it is already
pushed.
* gnu-nat.c (gnu_mourn_inferior): Only unpush the target after
mourning the inferior. Use inf_child_maybe_unpush_target.
(gnu_detach): Use inf_child_maybe_unpush_target.
* go32-nat.c (go32_create_inferior): Don't push the target if it
is already pushed.
(go32_mourn_inferior): Use inf_child_maybe_unpush_target.
* nto-procfs.c (procfs_is_nto_target): Adjust comment.
(procfs_open): Rename to ...
(procfs_open_1): ... this. Add target_ops parameter. Adjust
comments. Can target_preopen before changing node. Call
inf_child_open_target to push the target explicitly.
(procfs_attach): Don't push the target if it is already pushed.
(procfs_detach): Use inf_child_maybe_unpush_target.
(procfs_create_inferior): Don't push the target if it is already
pushed.
(nto_native_ops): New global.
(procfs_open): Reimplement.
(procfs_native_open): New function.
(init_procfs_targets): Install procfs_native_open as to_open of
"target native". Store a pointer to the "native" target in
nto_native_ops.
* procfs.c (procfs_attach): Don't push the target if it is already
pushed.
(procfs_detach): Use inf_child_maybe_unpush_target.
(procfs_mourn_inferior): Only unpush the target after mourning the
inferior. Use inf_child_maybe_unpush_target.
(procfs_init_inferior): Don't push the target if it is already
pushed.
* windows-nat.c (do_initial_windows_stuff): Don't push the target
if it is already pushed.
(windows_detach): Use inf_child_maybe_unpush_target.
(windows_mourn_inferior): Only unpush the target after mourning
the inferior. Use inf_child_maybe_unpush_target.
gdb/doc/
2014-05-21 Pedro Alves <palves@redhat.com>
* gdb.texinfo (Starting): Document "set/show
auto-connect-native-target".
(Target Commands): Document "target native".
gdb/testsuite/
2014-05-21 Pedro Alves <palves@redhat.com>
* boards/gdbserver-base.exp (GDBFLAGS): Set to "set
auto-connect-native-target off".
* gdb.base/auto-connect-native-target.c: New file.
* gdb.base/auto-connect-native-target.exp: New file.
2014-05-21 19:30:47 +02:00
|
|
|
|
/* Whether GDB is allowed to fall back to the default run target for
|
|
|
|
|
"run", "attach", etc. when no target is connected yet. */
|
|
|
|
|
static int auto_connect_native_target = 1;
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
show_auto_connect_native_target (struct ui_file *file, int from_tty,
|
|
|
|
|
struct cmd_list_element *c, const char *value)
|
|
|
|
|
{
|
|
|
|
|
fprintf_filtered (file,
|
|
|
|
|
_("Whether GDB may automatically connect to the "
|
|
|
|
|
"native target is %s.\n"),
|
|
|
|
|
value);
|
|
|
|
|
}
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
/* Look through the list of possible targets for a target that can
|
|
|
|
|
execute a run or attach command without any other data. This is
|
|
|
|
|
used to locate the default process stratum.
|
|
|
|
|
|
2008-03-28 17:37:08 +01:00
|
|
|
|
If DO_MESG is not NULL, the result is always valid (error() is
|
|
|
|
|
called for errors); else, return NULL on error. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
static struct target_ops *
|
2000-07-30 03:48:28 +02:00
|
|
|
|
find_default_run_target (char *do_mesg)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
struct target_ops *runable = NULL;
|
|
|
|
|
|
Allow making GDB not automatically connect to the native target.
Sometimes it's useful to be able to disable the automatic connection
to the native target. E.g., sometimes GDB disconnects from the
extended-remote target I was debugging, without me noticing it, and
then I do "run". That starts the program locally, and only after a
little head scratch session do I figure out the program is running
locally instead of remotely as intended. Same thing with "attach",
"info os", etc.
With the patch, we now can have this instead:
(gdb) set auto-connect-native-target off
(gdb) target extended-remote :9999
...
*gdb disconnects*
(gdb) run
Don't know how to run. Try "help target".
To still be able to connect to the native target with
auto-connect-native-target set to off, I've made "target native" work
instead of erroring out as today.
Before:
(gdb) target native
Use the "run" command to start a native process.
After:
(gdb) target native
Done. Use the "run" command to start a process.
(gdb) maint print target-stack
The current target stack is:
- native (Native process)
- exec (Local exec file)
- None (None)
(gdb) run
Starting program: ./a.out
...
I've also wanted this for the testsuite, when running against the
native-extended-gdbserver.exp board (runs against gdbserver in
extended-remote mode). With a non-native-target board, it's always a
bug to launch a program with the native target. Turns out we still
have one such case this patch catches:
(gdb) break main
Breakpoint 1 at 0x4009e5: file ../../../src/gdb/testsuite/gdb.base/coremaker.c, line 138.
(gdb) run
Don't know how to run. Try "help target".
(gdb) FAIL: gdb.base/corefile.exp: run: with core
On the patch itself, probably the least obvious bit is the need to go
through all targets, and move the unpush_target call to after the
generic_mourn_inferior call instead of before. This is what
inf-ptrace.c does too, ever since multi-process support was added.
The reason inf-ptrace.c does things in that order is that in the
current multi-process/single-target model, we shouldn't unpush the
target if there are still other live inferiors being debugged. The
check for that is "have_inferiors ()" (a misnomer nowadays...), which
does:
have_inferiors (void)
{
for (inf = inferior_list; inf; inf = inf->next)
if (inf->pid != 0)
return 1;
It's generic_mourn_inferior that ends up clearing inf->pid, so we need
to call it before the have_inferiors check. To make all native
targets behave the same WRT to explicit "target native", I've added an
inf_child_maybe_unpush_target function that targets call instead of
calling unpush_target directly, and as that includes the
have_inferiors check, I needed to adjust the targets.
Tested on x86_64 Fedora 20, native, and also with the
extended-gdbserver board.
Confirmed a cross build of djgpp gdb still builds.
Smoke tested a cross build of Windows gdb under Wine.
Untested otherwise.
gdb/
2014-05-21 Pedro Alves <palves@redhat.com>
* inf-child.c (inf_child_ops, inf_child_explicitly_opened): New
globals.
(inf_child_open_target): New function.
(inf_child_open): Use inf_child_open_target to push the target
instead of erroring out.
(inf_child_disconnect, inf_child_close)
(inf_child_maybe_unpush_target): New functions.
(inf_child_target): Install inf_child_disconnect and
inf_child_close. Store a pointer to the returned object.
* inf-child.h (inf_child_open_target, inf_child_maybe_unpush): New
declarations.
* target.c (auto_connect_native_target): New global.
(show_default_run_target): New function.
(find_default_run_target): Return NULL if automatically connecting
to the native target is disabled.
(_initialize_target): Install set/show auto-connect-native-target.
* NEWS: Mention "set auto-connect-native-target", and "target
native".
* linux-nat.c (super_close): New global.
(linux_nat_close): Call super_close.
(linux_nat_add_target): Store a pointer to the base class's
to_close method.
* inf-ptrace.c (inf_ptrace_mourn_inferior, inf_ptrace_detach): Use
inf_child_maybe_unpush.
* inf-ttrace.c (inf_ttrace_him): Don't push the target if it is
already pushed.
(inf_ttrace_mourn_inferior): Only unpush the target after mourning
the inferior. Use inf_child_maybe_unpush_target.
(inf_ttrace_attach): Don't push the target if it is already
pushed.
(inf_ttrace_detach): Use inf_child_maybe_unpush_target.
* darwin-nat.c (darwin_mourn_inferior): Only unpush the target
after mourning the inferior. Use inf_child_maybe_unpush_target.
(darwin_attach_pid): Don't push the target if it is already
pushed.
* gnu-nat.c (gnu_mourn_inferior): Only unpush the target after
mourning the inferior. Use inf_child_maybe_unpush_target.
(gnu_detach): Use inf_child_maybe_unpush_target.
* go32-nat.c (go32_create_inferior): Don't push the target if it
is already pushed.
(go32_mourn_inferior): Use inf_child_maybe_unpush_target.
* nto-procfs.c (procfs_is_nto_target): Adjust comment.
(procfs_open): Rename to ...
(procfs_open_1): ... this. Add target_ops parameter. Adjust
comments. Can target_preopen before changing node. Call
inf_child_open_target to push the target explicitly.
(procfs_attach): Don't push the target if it is already pushed.
(procfs_detach): Use inf_child_maybe_unpush_target.
(procfs_create_inferior): Don't push the target if it is already
pushed.
(nto_native_ops): New global.
(procfs_open): Reimplement.
(procfs_native_open): New function.
(init_procfs_targets): Install procfs_native_open as to_open of
"target native". Store a pointer to the "native" target in
nto_native_ops.
* procfs.c (procfs_attach): Don't push the target if it is already
pushed.
(procfs_detach): Use inf_child_maybe_unpush_target.
(procfs_mourn_inferior): Only unpush the target after mourning the
inferior. Use inf_child_maybe_unpush_target.
(procfs_init_inferior): Don't push the target if it is already
pushed.
* windows-nat.c (do_initial_windows_stuff): Don't push the target
if it is already pushed.
(windows_detach): Use inf_child_maybe_unpush_target.
(windows_mourn_inferior): Only unpush the target after mourning
the inferior. Use inf_child_maybe_unpush_target.
gdb/doc/
2014-05-21 Pedro Alves <palves@redhat.com>
* gdb.texinfo (Starting): Document "set/show
auto-connect-native-target".
(Target Commands): Document "target native".
gdb/testsuite/
2014-05-21 Pedro Alves <palves@redhat.com>
* boards/gdbserver-base.exp (GDBFLAGS): Set to "set
auto-connect-native-target off".
* gdb.base/auto-connect-native-target.c: New file.
* gdb.base/auto-connect-native-target.exp: New file.
2014-05-21 19:30:47 +02:00
|
|
|
|
if (auto_connect_native_target)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2014-08-15 22:34:34 +02:00
|
|
|
|
struct target_ops *t;
|
Allow making GDB not automatically connect to the native target.
Sometimes it's useful to be able to disable the automatic connection
to the native target. E.g., sometimes GDB disconnects from the
extended-remote target I was debugging, without me noticing it, and
then I do "run". That starts the program locally, and only after a
little head scratch session do I figure out the program is running
locally instead of remotely as intended. Same thing with "attach",
"info os", etc.
With the patch, we now can have this instead:
(gdb) set auto-connect-native-target off
(gdb) target extended-remote :9999
...
*gdb disconnects*
(gdb) run
Don't know how to run. Try "help target".
To still be able to connect to the native target with
auto-connect-native-target set to off, I've made "target native" work
instead of erroring out as today.
Before:
(gdb) target native
Use the "run" command to start a native process.
After:
(gdb) target native
Done. Use the "run" command to start a process.
(gdb) maint print target-stack
The current target stack is:
- native (Native process)
- exec (Local exec file)
- None (None)
(gdb) run
Starting program: ./a.out
...
I've also wanted this for the testsuite, when running against the
native-extended-gdbserver.exp board (runs against gdbserver in
extended-remote mode). With a non-native-target board, it's always a
bug to launch a program with the native target. Turns out we still
have one such case this patch catches:
(gdb) break main
Breakpoint 1 at 0x4009e5: file ../../../src/gdb/testsuite/gdb.base/coremaker.c, line 138.
(gdb) run
Don't know how to run. Try "help target".
(gdb) FAIL: gdb.base/corefile.exp: run: with core
On the patch itself, probably the least obvious bit is the need to go
through all targets, and move the unpush_target call to after the
generic_mourn_inferior call instead of before. This is what
inf-ptrace.c does too, ever since multi-process support was added.
The reason inf-ptrace.c does things in that order is that in the
current multi-process/single-target model, we shouldn't unpush the
target if there are still other live inferiors being debugged. The
check for that is "have_inferiors ()" (a misnomer nowadays...), which
does:
have_inferiors (void)
{
for (inf = inferior_list; inf; inf = inf->next)
if (inf->pid != 0)
return 1;
It's generic_mourn_inferior that ends up clearing inf->pid, so we need
to call it before the have_inferiors check. To make all native
targets behave the same WRT to explicit "target native", I've added an
inf_child_maybe_unpush_target function that targets call instead of
calling unpush_target directly, and as that includes the
have_inferiors check, I needed to adjust the targets.
Tested on x86_64 Fedora 20, native, and also with the
extended-gdbserver board.
Confirmed a cross build of djgpp gdb still builds.
Smoke tested a cross build of Windows gdb under Wine.
Untested otherwise.
gdb/
2014-05-21 Pedro Alves <palves@redhat.com>
* inf-child.c (inf_child_ops, inf_child_explicitly_opened): New
globals.
(inf_child_open_target): New function.
(inf_child_open): Use inf_child_open_target to push the target
instead of erroring out.
(inf_child_disconnect, inf_child_close)
(inf_child_maybe_unpush_target): New functions.
(inf_child_target): Install inf_child_disconnect and
inf_child_close. Store a pointer to the returned object.
* inf-child.h (inf_child_open_target, inf_child_maybe_unpush): New
declarations.
* target.c (auto_connect_native_target): New global.
(show_default_run_target): New function.
(find_default_run_target): Return NULL if automatically connecting
to the native target is disabled.
(_initialize_target): Install set/show auto-connect-native-target.
* NEWS: Mention "set auto-connect-native-target", and "target
native".
* linux-nat.c (super_close): New global.
(linux_nat_close): Call super_close.
(linux_nat_add_target): Store a pointer to the base class's
to_close method.
* inf-ptrace.c (inf_ptrace_mourn_inferior, inf_ptrace_detach): Use
inf_child_maybe_unpush.
* inf-ttrace.c (inf_ttrace_him): Don't push the target if it is
already pushed.
(inf_ttrace_mourn_inferior): Only unpush the target after mourning
the inferior. Use inf_child_maybe_unpush_target.
(inf_ttrace_attach): Don't push the target if it is already
pushed.
(inf_ttrace_detach): Use inf_child_maybe_unpush_target.
* darwin-nat.c (darwin_mourn_inferior): Only unpush the target
after mourning the inferior. Use inf_child_maybe_unpush_target.
(darwin_attach_pid): Don't push the target if it is already
pushed.
* gnu-nat.c (gnu_mourn_inferior): Only unpush the target after
mourning the inferior. Use inf_child_maybe_unpush_target.
(gnu_detach): Use inf_child_maybe_unpush_target.
* go32-nat.c (go32_create_inferior): Don't push the target if it
is already pushed.
(go32_mourn_inferior): Use inf_child_maybe_unpush_target.
* nto-procfs.c (procfs_is_nto_target): Adjust comment.
(procfs_open): Rename to ...
(procfs_open_1): ... this. Add target_ops parameter. Adjust
comments. Can target_preopen before changing node. Call
inf_child_open_target to push the target explicitly.
(procfs_attach): Don't push the target if it is already pushed.
(procfs_detach): Use inf_child_maybe_unpush_target.
(procfs_create_inferior): Don't push the target if it is already
pushed.
(nto_native_ops): New global.
(procfs_open): Reimplement.
(procfs_native_open): New function.
(init_procfs_targets): Install procfs_native_open as to_open of
"target native". Store a pointer to the "native" target in
nto_native_ops.
* procfs.c (procfs_attach): Don't push the target if it is already
pushed.
(procfs_detach): Use inf_child_maybe_unpush_target.
(procfs_mourn_inferior): Only unpush the target after mourning the
inferior. Use inf_child_maybe_unpush_target.
(procfs_init_inferior): Don't push the target if it is already
pushed.
* windows-nat.c (do_initial_windows_stuff): Don't push the target
if it is already pushed.
(windows_detach): Use inf_child_maybe_unpush_target.
(windows_mourn_inferior): Only unpush the target after mourning
the inferior. Use inf_child_maybe_unpush_target.
gdb/doc/
2014-05-21 Pedro Alves <palves@redhat.com>
* gdb.texinfo (Starting): Document "set/show
auto-connect-native-target".
(Target Commands): Document "target native".
gdb/testsuite/
2014-05-21 Pedro Alves <palves@redhat.com>
* boards/gdbserver-base.exp (GDBFLAGS): Set to "set
auto-connect-native-target off".
* gdb.base/auto-connect-native-target.c: New file.
* gdb.base/auto-connect-native-target.exp: New file.
2014-05-21 19:30:47 +02:00
|
|
|
|
int count = 0;
|
2014-08-15 22:34:34 +02:00
|
|
|
|
int i;
|
Allow making GDB not automatically connect to the native target.
Sometimes it's useful to be able to disable the automatic connection
to the native target. E.g., sometimes GDB disconnects from the
extended-remote target I was debugging, without me noticing it, and
then I do "run". That starts the program locally, and only after a
little head scratch session do I figure out the program is running
locally instead of remotely as intended. Same thing with "attach",
"info os", etc.
With the patch, we now can have this instead:
(gdb) set auto-connect-native-target off
(gdb) target extended-remote :9999
...
*gdb disconnects*
(gdb) run
Don't know how to run. Try "help target".
To still be able to connect to the native target with
auto-connect-native-target set to off, I've made "target native" work
instead of erroring out as today.
Before:
(gdb) target native
Use the "run" command to start a native process.
After:
(gdb) target native
Done. Use the "run" command to start a process.
(gdb) maint print target-stack
The current target stack is:
- native (Native process)
- exec (Local exec file)
- None (None)
(gdb) run
Starting program: ./a.out
...
I've also wanted this for the testsuite, when running against the
native-extended-gdbserver.exp board (runs against gdbserver in
extended-remote mode). With a non-native-target board, it's always a
bug to launch a program with the native target. Turns out we still
have one such case this patch catches:
(gdb) break main
Breakpoint 1 at 0x4009e5: file ../../../src/gdb/testsuite/gdb.base/coremaker.c, line 138.
(gdb) run
Don't know how to run. Try "help target".
(gdb) FAIL: gdb.base/corefile.exp: run: with core
On the patch itself, probably the least obvious bit is the need to go
through all targets, and move the unpush_target call to after the
generic_mourn_inferior call instead of before. This is what
inf-ptrace.c does too, ever since multi-process support was added.
The reason inf-ptrace.c does things in that order is that in the
current multi-process/single-target model, we shouldn't unpush the
target if there are still other live inferiors being debugged. The
check for that is "have_inferiors ()" (a misnomer nowadays...), which
does:
have_inferiors (void)
{
for (inf = inferior_list; inf; inf = inf->next)
if (inf->pid != 0)
return 1;
It's generic_mourn_inferior that ends up clearing inf->pid, so we need
to call it before the have_inferiors check. To make all native
targets behave the same WRT to explicit "target native", I've added an
inf_child_maybe_unpush_target function that targets call instead of
calling unpush_target directly, and as that includes the
have_inferiors check, I needed to adjust the targets.
Tested on x86_64 Fedora 20, native, and also with the
extended-gdbserver board.
Confirmed a cross build of djgpp gdb still builds.
Smoke tested a cross build of Windows gdb under Wine.
Untested otherwise.
gdb/
2014-05-21 Pedro Alves <palves@redhat.com>
* inf-child.c (inf_child_ops, inf_child_explicitly_opened): New
globals.
(inf_child_open_target): New function.
(inf_child_open): Use inf_child_open_target to push the target
instead of erroring out.
(inf_child_disconnect, inf_child_close)
(inf_child_maybe_unpush_target): New functions.
(inf_child_target): Install inf_child_disconnect and
inf_child_close. Store a pointer to the returned object.
* inf-child.h (inf_child_open_target, inf_child_maybe_unpush): New
declarations.
* target.c (auto_connect_native_target): New global.
(show_default_run_target): New function.
(find_default_run_target): Return NULL if automatically connecting
to the native target is disabled.
(_initialize_target): Install set/show auto-connect-native-target.
* NEWS: Mention "set auto-connect-native-target", and "target
native".
* linux-nat.c (super_close): New global.
(linux_nat_close): Call super_close.
(linux_nat_add_target): Store a pointer to the base class's
to_close method.
* inf-ptrace.c (inf_ptrace_mourn_inferior, inf_ptrace_detach): Use
inf_child_maybe_unpush.
* inf-ttrace.c (inf_ttrace_him): Don't push the target if it is
already pushed.
(inf_ttrace_mourn_inferior): Only unpush the target after mourning
the inferior. Use inf_child_maybe_unpush_target.
(inf_ttrace_attach): Don't push the target if it is already
pushed.
(inf_ttrace_detach): Use inf_child_maybe_unpush_target.
* darwin-nat.c (darwin_mourn_inferior): Only unpush the target
after mourning the inferior. Use inf_child_maybe_unpush_target.
(darwin_attach_pid): Don't push the target if it is already
pushed.
* gnu-nat.c (gnu_mourn_inferior): Only unpush the target after
mourning the inferior. Use inf_child_maybe_unpush_target.
(gnu_detach): Use inf_child_maybe_unpush_target.
* go32-nat.c (go32_create_inferior): Don't push the target if it
is already pushed.
(go32_mourn_inferior): Use inf_child_maybe_unpush_target.
* nto-procfs.c (procfs_is_nto_target): Adjust comment.
(procfs_open): Rename to ...
(procfs_open_1): ... this. Add target_ops parameter. Adjust
comments. Can target_preopen before changing node. Call
inf_child_open_target to push the target explicitly.
(procfs_attach): Don't push the target if it is already pushed.
(procfs_detach): Use inf_child_maybe_unpush_target.
(procfs_create_inferior): Don't push the target if it is already
pushed.
(nto_native_ops): New global.
(procfs_open): Reimplement.
(procfs_native_open): New function.
(init_procfs_targets): Install procfs_native_open as to_open of
"target native". Store a pointer to the "native" target in
nto_native_ops.
* procfs.c (procfs_attach): Don't push the target if it is already
pushed.
(procfs_detach): Use inf_child_maybe_unpush_target.
(procfs_mourn_inferior): Only unpush the target after mourning the
inferior. Use inf_child_maybe_unpush_target.
(procfs_init_inferior): Don't push the target if it is already
pushed.
* windows-nat.c (do_initial_windows_stuff): Don't push the target
if it is already pushed.
(windows_detach): Use inf_child_maybe_unpush_target.
(windows_mourn_inferior): Only unpush the target after mourning
the inferior. Use inf_child_maybe_unpush_target.
gdb/doc/
2014-05-21 Pedro Alves <palves@redhat.com>
* gdb.texinfo (Starting): Document "set/show
auto-connect-native-target".
(Target Commands): Document "target native".
gdb/testsuite/
2014-05-21 Pedro Alves <palves@redhat.com>
* boards/gdbserver-base.exp (GDBFLAGS): Set to "set
auto-connect-native-target off".
* gdb.base/auto-connect-native-target.c: New file.
* gdb.base/auto-connect-native-target.exp: New file.
2014-05-21 19:30:47 +02:00
|
|
|
|
|
2014-08-15 22:34:34 +02:00
|
|
|
|
for (i = 0; VEC_iterate (target_ops_p, target_structs, i, t); ++i)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2014-08-15 22:34:34 +02:00
|
|
|
|
if (t->to_can_run != delegate_can_run && target_can_run (t))
|
Allow making GDB not automatically connect to the native target.
Sometimes it's useful to be able to disable the automatic connection
to the native target. E.g., sometimes GDB disconnects from the
extended-remote target I was debugging, without me noticing it, and
then I do "run". That starts the program locally, and only after a
little head scratch session do I figure out the program is running
locally instead of remotely as intended. Same thing with "attach",
"info os", etc.
With the patch, we now can have this instead:
(gdb) set auto-connect-native-target off
(gdb) target extended-remote :9999
...
*gdb disconnects*
(gdb) run
Don't know how to run. Try "help target".
To still be able to connect to the native target with
auto-connect-native-target set to off, I've made "target native" work
instead of erroring out as today.
Before:
(gdb) target native
Use the "run" command to start a native process.
After:
(gdb) target native
Done. Use the "run" command to start a process.
(gdb) maint print target-stack
The current target stack is:
- native (Native process)
- exec (Local exec file)
- None (None)
(gdb) run
Starting program: ./a.out
...
I've also wanted this for the testsuite, when running against the
native-extended-gdbserver.exp board (runs against gdbserver in
extended-remote mode). With a non-native-target board, it's always a
bug to launch a program with the native target. Turns out we still
have one such case this patch catches:
(gdb) break main
Breakpoint 1 at 0x4009e5: file ../../../src/gdb/testsuite/gdb.base/coremaker.c, line 138.
(gdb) run
Don't know how to run. Try "help target".
(gdb) FAIL: gdb.base/corefile.exp: run: with core
On the patch itself, probably the least obvious bit is the need to go
through all targets, and move the unpush_target call to after the
generic_mourn_inferior call instead of before. This is what
inf-ptrace.c does too, ever since multi-process support was added.
The reason inf-ptrace.c does things in that order is that in the
current multi-process/single-target model, we shouldn't unpush the
target if there are still other live inferiors being debugged. The
check for that is "have_inferiors ()" (a misnomer nowadays...), which
does:
have_inferiors (void)
{
for (inf = inferior_list; inf; inf = inf->next)
if (inf->pid != 0)
return 1;
It's generic_mourn_inferior that ends up clearing inf->pid, so we need
to call it before the have_inferiors check. To make all native
targets behave the same WRT to explicit "target native", I've added an
inf_child_maybe_unpush_target function that targets call instead of
calling unpush_target directly, and as that includes the
have_inferiors check, I needed to adjust the targets.
Tested on x86_64 Fedora 20, native, and also with the
extended-gdbserver board.
Confirmed a cross build of djgpp gdb still builds.
Smoke tested a cross build of Windows gdb under Wine.
Untested otherwise.
gdb/
2014-05-21 Pedro Alves <palves@redhat.com>
* inf-child.c (inf_child_ops, inf_child_explicitly_opened): New
globals.
(inf_child_open_target): New function.
(inf_child_open): Use inf_child_open_target to push the target
instead of erroring out.
(inf_child_disconnect, inf_child_close)
(inf_child_maybe_unpush_target): New functions.
(inf_child_target): Install inf_child_disconnect and
inf_child_close. Store a pointer to the returned object.
* inf-child.h (inf_child_open_target, inf_child_maybe_unpush): New
declarations.
* target.c (auto_connect_native_target): New global.
(show_default_run_target): New function.
(find_default_run_target): Return NULL if automatically connecting
to the native target is disabled.
(_initialize_target): Install set/show auto-connect-native-target.
* NEWS: Mention "set auto-connect-native-target", and "target
native".
* linux-nat.c (super_close): New global.
(linux_nat_close): Call super_close.
(linux_nat_add_target): Store a pointer to the base class's
to_close method.
* inf-ptrace.c (inf_ptrace_mourn_inferior, inf_ptrace_detach): Use
inf_child_maybe_unpush.
* inf-ttrace.c (inf_ttrace_him): Don't push the target if it is
already pushed.
(inf_ttrace_mourn_inferior): Only unpush the target after mourning
the inferior. Use inf_child_maybe_unpush_target.
(inf_ttrace_attach): Don't push the target if it is already
pushed.
(inf_ttrace_detach): Use inf_child_maybe_unpush_target.
* darwin-nat.c (darwin_mourn_inferior): Only unpush the target
after mourning the inferior. Use inf_child_maybe_unpush_target.
(darwin_attach_pid): Don't push the target if it is already
pushed.
* gnu-nat.c (gnu_mourn_inferior): Only unpush the target after
mourning the inferior. Use inf_child_maybe_unpush_target.
(gnu_detach): Use inf_child_maybe_unpush_target.
* go32-nat.c (go32_create_inferior): Don't push the target if it
is already pushed.
(go32_mourn_inferior): Use inf_child_maybe_unpush_target.
* nto-procfs.c (procfs_is_nto_target): Adjust comment.
(procfs_open): Rename to ...
(procfs_open_1): ... this. Add target_ops parameter. Adjust
comments. Can target_preopen before changing node. Call
inf_child_open_target to push the target explicitly.
(procfs_attach): Don't push the target if it is already pushed.
(procfs_detach): Use inf_child_maybe_unpush_target.
(procfs_create_inferior): Don't push the target if it is already
pushed.
(nto_native_ops): New global.
(procfs_open): Reimplement.
(procfs_native_open): New function.
(init_procfs_targets): Install procfs_native_open as to_open of
"target native". Store a pointer to the "native" target in
nto_native_ops.
* procfs.c (procfs_attach): Don't push the target if it is already
pushed.
(procfs_detach): Use inf_child_maybe_unpush_target.
(procfs_mourn_inferior): Only unpush the target after mourning the
inferior. Use inf_child_maybe_unpush_target.
(procfs_init_inferior): Don't push the target if it is already
pushed.
* windows-nat.c (do_initial_windows_stuff): Don't push the target
if it is already pushed.
(windows_detach): Use inf_child_maybe_unpush_target.
(windows_mourn_inferior): Only unpush the target after mourning
the inferior. Use inf_child_maybe_unpush_target.
gdb/doc/
2014-05-21 Pedro Alves <palves@redhat.com>
* gdb.texinfo (Starting): Document "set/show
auto-connect-native-target".
(Target Commands): Document "target native".
gdb/testsuite/
2014-05-21 Pedro Alves <palves@redhat.com>
* boards/gdbserver-base.exp (GDBFLAGS): Set to "set
auto-connect-native-target off".
* gdb.base/auto-connect-native-target.c: New file.
* gdb.base/auto-connect-native-target.exp: New file.
2014-05-21 19:30:47 +02:00
|
|
|
|
{
|
2014-08-15 22:34:34 +02:00
|
|
|
|
runable = t;
|
Allow making GDB not automatically connect to the native target.
Sometimes it's useful to be able to disable the automatic connection
to the native target. E.g., sometimes GDB disconnects from the
extended-remote target I was debugging, without me noticing it, and
then I do "run". That starts the program locally, and only after a
little head scratch session do I figure out the program is running
locally instead of remotely as intended. Same thing with "attach",
"info os", etc.
With the patch, we now can have this instead:
(gdb) set auto-connect-native-target off
(gdb) target extended-remote :9999
...
*gdb disconnects*
(gdb) run
Don't know how to run. Try "help target".
To still be able to connect to the native target with
auto-connect-native-target set to off, I've made "target native" work
instead of erroring out as today.
Before:
(gdb) target native
Use the "run" command to start a native process.
After:
(gdb) target native
Done. Use the "run" command to start a process.
(gdb) maint print target-stack
The current target stack is:
- native (Native process)
- exec (Local exec file)
- None (None)
(gdb) run
Starting program: ./a.out
...
I've also wanted this for the testsuite, when running against the
native-extended-gdbserver.exp board (runs against gdbserver in
extended-remote mode). With a non-native-target board, it's always a
bug to launch a program with the native target. Turns out we still
have one such case this patch catches:
(gdb) break main
Breakpoint 1 at 0x4009e5: file ../../../src/gdb/testsuite/gdb.base/coremaker.c, line 138.
(gdb) run
Don't know how to run. Try "help target".
(gdb) FAIL: gdb.base/corefile.exp: run: with core
On the patch itself, probably the least obvious bit is the need to go
through all targets, and move the unpush_target call to after the
generic_mourn_inferior call instead of before. This is what
inf-ptrace.c does too, ever since multi-process support was added.
The reason inf-ptrace.c does things in that order is that in the
current multi-process/single-target model, we shouldn't unpush the
target if there are still other live inferiors being debugged. The
check for that is "have_inferiors ()" (a misnomer nowadays...), which
does:
have_inferiors (void)
{
for (inf = inferior_list; inf; inf = inf->next)
if (inf->pid != 0)
return 1;
It's generic_mourn_inferior that ends up clearing inf->pid, so we need
to call it before the have_inferiors check. To make all native
targets behave the same WRT to explicit "target native", I've added an
inf_child_maybe_unpush_target function that targets call instead of
calling unpush_target directly, and as that includes the
have_inferiors check, I needed to adjust the targets.
Tested on x86_64 Fedora 20, native, and also with the
extended-gdbserver board.
Confirmed a cross build of djgpp gdb still builds.
Smoke tested a cross build of Windows gdb under Wine.
Untested otherwise.
gdb/
2014-05-21 Pedro Alves <palves@redhat.com>
* inf-child.c (inf_child_ops, inf_child_explicitly_opened): New
globals.
(inf_child_open_target): New function.
(inf_child_open): Use inf_child_open_target to push the target
instead of erroring out.
(inf_child_disconnect, inf_child_close)
(inf_child_maybe_unpush_target): New functions.
(inf_child_target): Install inf_child_disconnect and
inf_child_close. Store a pointer to the returned object.
* inf-child.h (inf_child_open_target, inf_child_maybe_unpush): New
declarations.
* target.c (auto_connect_native_target): New global.
(show_default_run_target): New function.
(find_default_run_target): Return NULL if automatically connecting
to the native target is disabled.
(_initialize_target): Install set/show auto-connect-native-target.
* NEWS: Mention "set auto-connect-native-target", and "target
native".
* linux-nat.c (super_close): New global.
(linux_nat_close): Call super_close.
(linux_nat_add_target): Store a pointer to the base class's
to_close method.
* inf-ptrace.c (inf_ptrace_mourn_inferior, inf_ptrace_detach): Use
inf_child_maybe_unpush.
* inf-ttrace.c (inf_ttrace_him): Don't push the target if it is
already pushed.
(inf_ttrace_mourn_inferior): Only unpush the target after mourning
the inferior. Use inf_child_maybe_unpush_target.
(inf_ttrace_attach): Don't push the target if it is already
pushed.
(inf_ttrace_detach): Use inf_child_maybe_unpush_target.
* darwin-nat.c (darwin_mourn_inferior): Only unpush the target
after mourning the inferior. Use inf_child_maybe_unpush_target.
(darwin_attach_pid): Don't push the target if it is already
pushed.
* gnu-nat.c (gnu_mourn_inferior): Only unpush the target after
mourning the inferior. Use inf_child_maybe_unpush_target.
(gnu_detach): Use inf_child_maybe_unpush_target.
* go32-nat.c (go32_create_inferior): Don't push the target if it
is already pushed.
(go32_mourn_inferior): Use inf_child_maybe_unpush_target.
* nto-procfs.c (procfs_is_nto_target): Adjust comment.
(procfs_open): Rename to ...
(procfs_open_1): ... this. Add target_ops parameter. Adjust
comments. Can target_preopen before changing node. Call
inf_child_open_target to push the target explicitly.
(procfs_attach): Don't push the target if it is already pushed.
(procfs_detach): Use inf_child_maybe_unpush_target.
(procfs_create_inferior): Don't push the target if it is already
pushed.
(nto_native_ops): New global.
(procfs_open): Reimplement.
(procfs_native_open): New function.
(init_procfs_targets): Install procfs_native_open as to_open of
"target native". Store a pointer to the "native" target in
nto_native_ops.
* procfs.c (procfs_attach): Don't push the target if it is already
pushed.
(procfs_detach): Use inf_child_maybe_unpush_target.
(procfs_mourn_inferior): Only unpush the target after mourning the
inferior. Use inf_child_maybe_unpush_target.
(procfs_init_inferior): Don't push the target if it is already
pushed.
* windows-nat.c (do_initial_windows_stuff): Don't push the target
if it is already pushed.
(windows_detach): Use inf_child_maybe_unpush_target.
(windows_mourn_inferior): Only unpush the target after mourning
the inferior. Use inf_child_maybe_unpush_target.
gdb/doc/
2014-05-21 Pedro Alves <palves@redhat.com>
* gdb.texinfo (Starting): Document "set/show
auto-connect-native-target".
(Target Commands): Document "target native".
gdb/testsuite/
2014-05-21 Pedro Alves <palves@redhat.com>
* boards/gdbserver-base.exp (GDBFLAGS): Set to "set
auto-connect-native-target off".
* gdb.base/auto-connect-native-target.c: New file.
* gdb.base/auto-connect-native-target.exp: New file.
2014-05-21 19:30:47 +02:00
|
|
|
|
++count;
|
|
|
|
|
}
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
Allow making GDB not automatically connect to the native target.
Sometimes it's useful to be able to disable the automatic connection
to the native target. E.g., sometimes GDB disconnects from the
extended-remote target I was debugging, without me noticing it, and
then I do "run". That starts the program locally, and only after a
little head scratch session do I figure out the program is running
locally instead of remotely as intended. Same thing with "attach",
"info os", etc.
With the patch, we now can have this instead:
(gdb) set auto-connect-native-target off
(gdb) target extended-remote :9999
...
*gdb disconnects*
(gdb) run
Don't know how to run. Try "help target".
To still be able to connect to the native target with
auto-connect-native-target set to off, I've made "target native" work
instead of erroring out as today.
Before:
(gdb) target native
Use the "run" command to start a native process.
After:
(gdb) target native
Done. Use the "run" command to start a process.
(gdb) maint print target-stack
The current target stack is:
- native (Native process)
- exec (Local exec file)
- None (None)
(gdb) run
Starting program: ./a.out
...
I've also wanted this for the testsuite, when running against the
native-extended-gdbserver.exp board (runs against gdbserver in
extended-remote mode). With a non-native-target board, it's always a
bug to launch a program with the native target. Turns out we still
have one such case this patch catches:
(gdb) break main
Breakpoint 1 at 0x4009e5: file ../../../src/gdb/testsuite/gdb.base/coremaker.c, line 138.
(gdb) run
Don't know how to run. Try "help target".
(gdb) FAIL: gdb.base/corefile.exp: run: with core
On the patch itself, probably the least obvious bit is the need to go
through all targets, and move the unpush_target call to after the
generic_mourn_inferior call instead of before. This is what
inf-ptrace.c does too, ever since multi-process support was added.
The reason inf-ptrace.c does things in that order is that in the
current multi-process/single-target model, we shouldn't unpush the
target if there are still other live inferiors being debugged. The
check for that is "have_inferiors ()" (a misnomer nowadays...), which
does:
have_inferiors (void)
{
for (inf = inferior_list; inf; inf = inf->next)
if (inf->pid != 0)
return 1;
It's generic_mourn_inferior that ends up clearing inf->pid, so we need
to call it before the have_inferiors check. To make all native
targets behave the same WRT to explicit "target native", I've added an
inf_child_maybe_unpush_target function that targets call instead of
calling unpush_target directly, and as that includes the
have_inferiors check, I needed to adjust the targets.
Tested on x86_64 Fedora 20, native, and also with the
extended-gdbserver board.
Confirmed a cross build of djgpp gdb still builds.
Smoke tested a cross build of Windows gdb under Wine.
Untested otherwise.
gdb/
2014-05-21 Pedro Alves <palves@redhat.com>
* inf-child.c (inf_child_ops, inf_child_explicitly_opened): New
globals.
(inf_child_open_target): New function.
(inf_child_open): Use inf_child_open_target to push the target
instead of erroring out.
(inf_child_disconnect, inf_child_close)
(inf_child_maybe_unpush_target): New functions.
(inf_child_target): Install inf_child_disconnect and
inf_child_close. Store a pointer to the returned object.
* inf-child.h (inf_child_open_target, inf_child_maybe_unpush): New
declarations.
* target.c (auto_connect_native_target): New global.
(show_default_run_target): New function.
(find_default_run_target): Return NULL if automatically connecting
to the native target is disabled.
(_initialize_target): Install set/show auto-connect-native-target.
* NEWS: Mention "set auto-connect-native-target", and "target
native".
* linux-nat.c (super_close): New global.
(linux_nat_close): Call super_close.
(linux_nat_add_target): Store a pointer to the base class's
to_close method.
* inf-ptrace.c (inf_ptrace_mourn_inferior, inf_ptrace_detach): Use
inf_child_maybe_unpush.
* inf-ttrace.c (inf_ttrace_him): Don't push the target if it is
already pushed.
(inf_ttrace_mourn_inferior): Only unpush the target after mourning
the inferior. Use inf_child_maybe_unpush_target.
(inf_ttrace_attach): Don't push the target if it is already
pushed.
(inf_ttrace_detach): Use inf_child_maybe_unpush_target.
* darwin-nat.c (darwin_mourn_inferior): Only unpush the target
after mourning the inferior. Use inf_child_maybe_unpush_target.
(darwin_attach_pid): Don't push the target if it is already
pushed.
* gnu-nat.c (gnu_mourn_inferior): Only unpush the target after
mourning the inferior. Use inf_child_maybe_unpush_target.
(gnu_detach): Use inf_child_maybe_unpush_target.
* go32-nat.c (go32_create_inferior): Don't push the target if it
is already pushed.
(go32_mourn_inferior): Use inf_child_maybe_unpush_target.
* nto-procfs.c (procfs_is_nto_target): Adjust comment.
(procfs_open): Rename to ...
(procfs_open_1): ... this. Add target_ops parameter. Adjust
comments. Can target_preopen before changing node. Call
inf_child_open_target to push the target explicitly.
(procfs_attach): Don't push the target if it is already pushed.
(procfs_detach): Use inf_child_maybe_unpush_target.
(procfs_create_inferior): Don't push the target if it is already
pushed.
(nto_native_ops): New global.
(procfs_open): Reimplement.
(procfs_native_open): New function.
(init_procfs_targets): Install procfs_native_open as to_open of
"target native". Store a pointer to the "native" target in
nto_native_ops.
* procfs.c (procfs_attach): Don't push the target if it is already
pushed.
(procfs_detach): Use inf_child_maybe_unpush_target.
(procfs_mourn_inferior): Only unpush the target after mourning the
inferior. Use inf_child_maybe_unpush_target.
(procfs_init_inferior): Don't push the target if it is already
pushed.
* windows-nat.c (do_initial_windows_stuff): Don't push the target
if it is already pushed.
(windows_detach): Use inf_child_maybe_unpush_target.
(windows_mourn_inferior): Only unpush the target after mourning
the inferior. Use inf_child_maybe_unpush_target.
gdb/doc/
2014-05-21 Pedro Alves <palves@redhat.com>
* gdb.texinfo (Starting): Document "set/show
auto-connect-native-target".
(Target Commands): Document "target native".
gdb/testsuite/
2014-05-21 Pedro Alves <palves@redhat.com>
* boards/gdbserver-base.exp (GDBFLAGS): Set to "set
auto-connect-native-target off".
* gdb.base/auto-connect-native-target.c: New file.
* gdb.base/auto-connect-native-target.exp: New file.
2014-05-21 19:30:47 +02:00
|
|
|
|
|
|
|
|
|
if (count != 1)
|
|
|
|
|
runable = NULL;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
Allow making GDB not automatically connect to the native target.
Sometimes it's useful to be able to disable the automatic connection
to the native target. E.g., sometimes GDB disconnects from the
extended-remote target I was debugging, without me noticing it, and
then I do "run". That starts the program locally, and only after a
little head scratch session do I figure out the program is running
locally instead of remotely as intended. Same thing with "attach",
"info os", etc.
With the patch, we now can have this instead:
(gdb) set auto-connect-native-target off
(gdb) target extended-remote :9999
...
*gdb disconnects*
(gdb) run
Don't know how to run. Try "help target".
To still be able to connect to the native target with
auto-connect-native-target set to off, I've made "target native" work
instead of erroring out as today.
Before:
(gdb) target native
Use the "run" command to start a native process.
After:
(gdb) target native
Done. Use the "run" command to start a process.
(gdb) maint print target-stack
The current target stack is:
- native (Native process)
- exec (Local exec file)
- None (None)
(gdb) run
Starting program: ./a.out
...
I've also wanted this for the testsuite, when running against the
native-extended-gdbserver.exp board (runs against gdbserver in
extended-remote mode). With a non-native-target board, it's always a
bug to launch a program with the native target. Turns out we still
have one such case this patch catches:
(gdb) break main
Breakpoint 1 at 0x4009e5: file ../../../src/gdb/testsuite/gdb.base/coremaker.c, line 138.
(gdb) run
Don't know how to run. Try "help target".
(gdb) FAIL: gdb.base/corefile.exp: run: with core
On the patch itself, probably the least obvious bit is the need to go
through all targets, and move the unpush_target call to after the
generic_mourn_inferior call instead of before. This is what
inf-ptrace.c does too, ever since multi-process support was added.
The reason inf-ptrace.c does things in that order is that in the
current multi-process/single-target model, we shouldn't unpush the
target if there are still other live inferiors being debugged. The
check for that is "have_inferiors ()" (a misnomer nowadays...), which
does:
have_inferiors (void)
{
for (inf = inferior_list; inf; inf = inf->next)
if (inf->pid != 0)
return 1;
It's generic_mourn_inferior that ends up clearing inf->pid, so we need
to call it before the have_inferiors check. To make all native
targets behave the same WRT to explicit "target native", I've added an
inf_child_maybe_unpush_target function that targets call instead of
calling unpush_target directly, and as that includes the
have_inferiors check, I needed to adjust the targets.
Tested on x86_64 Fedora 20, native, and also with the
extended-gdbserver board.
Confirmed a cross build of djgpp gdb still builds.
Smoke tested a cross build of Windows gdb under Wine.
Untested otherwise.
gdb/
2014-05-21 Pedro Alves <palves@redhat.com>
* inf-child.c (inf_child_ops, inf_child_explicitly_opened): New
globals.
(inf_child_open_target): New function.
(inf_child_open): Use inf_child_open_target to push the target
instead of erroring out.
(inf_child_disconnect, inf_child_close)
(inf_child_maybe_unpush_target): New functions.
(inf_child_target): Install inf_child_disconnect and
inf_child_close. Store a pointer to the returned object.
* inf-child.h (inf_child_open_target, inf_child_maybe_unpush): New
declarations.
* target.c (auto_connect_native_target): New global.
(show_default_run_target): New function.
(find_default_run_target): Return NULL if automatically connecting
to the native target is disabled.
(_initialize_target): Install set/show auto-connect-native-target.
* NEWS: Mention "set auto-connect-native-target", and "target
native".
* linux-nat.c (super_close): New global.
(linux_nat_close): Call super_close.
(linux_nat_add_target): Store a pointer to the base class's
to_close method.
* inf-ptrace.c (inf_ptrace_mourn_inferior, inf_ptrace_detach): Use
inf_child_maybe_unpush.
* inf-ttrace.c (inf_ttrace_him): Don't push the target if it is
already pushed.
(inf_ttrace_mourn_inferior): Only unpush the target after mourning
the inferior. Use inf_child_maybe_unpush_target.
(inf_ttrace_attach): Don't push the target if it is already
pushed.
(inf_ttrace_detach): Use inf_child_maybe_unpush_target.
* darwin-nat.c (darwin_mourn_inferior): Only unpush the target
after mourning the inferior. Use inf_child_maybe_unpush_target.
(darwin_attach_pid): Don't push the target if it is already
pushed.
* gnu-nat.c (gnu_mourn_inferior): Only unpush the target after
mourning the inferior. Use inf_child_maybe_unpush_target.
(gnu_detach): Use inf_child_maybe_unpush_target.
* go32-nat.c (go32_create_inferior): Don't push the target if it
is already pushed.
(go32_mourn_inferior): Use inf_child_maybe_unpush_target.
* nto-procfs.c (procfs_is_nto_target): Adjust comment.
(procfs_open): Rename to ...
(procfs_open_1): ... this. Add target_ops parameter. Adjust
comments. Can target_preopen before changing node. Call
inf_child_open_target to push the target explicitly.
(procfs_attach): Don't push the target if it is already pushed.
(procfs_detach): Use inf_child_maybe_unpush_target.
(procfs_create_inferior): Don't push the target if it is already
pushed.
(nto_native_ops): New global.
(procfs_open): Reimplement.
(procfs_native_open): New function.
(init_procfs_targets): Install procfs_native_open as to_open of
"target native". Store a pointer to the "native" target in
nto_native_ops.
* procfs.c (procfs_attach): Don't push the target if it is already
pushed.
(procfs_detach): Use inf_child_maybe_unpush_target.
(procfs_mourn_inferior): Only unpush the target after mourning the
inferior. Use inf_child_maybe_unpush_target.
(procfs_init_inferior): Don't push the target if it is already
pushed.
* windows-nat.c (do_initial_windows_stuff): Don't push the target
if it is already pushed.
(windows_detach): Use inf_child_maybe_unpush_target.
(windows_mourn_inferior): Only unpush the target after mourning
the inferior. Use inf_child_maybe_unpush_target.
gdb/doc/
2014-05-21 Pedro Alves <palves@redhat.com>
* gdb.texinfo (Starting): Document "set/show
auto-connect-native-target".
(Target Commands): Document "target native".
gdb/testsuite/
2014-05-21 Pedro Alves <palves@redhat.com>
* boards/gdbserver-base.exp (GDBFLAGS): Set to "set
auto-connect-native-target off".
* gdb.base/auto-connect-native-target.c: New file.
* gdb.base/auto-connect-native-target.exp: New file.
2014-05-21 19:30:47 +02:00
|
|
|
|
if (runable == NULL)
|
2008-03-28 17:37:08 +01:00
|
|
|
|
{
|
|
|
|
|
if (do_mesg)
|
|
|
|
|
error (_("Don't know how to %s. Try \"help target\"."), do_mesg);
|
|
|
|
|
else
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
return runable;
|
|
|
|
|
}
|
|
|
|
|
|
fix regressions with target-async
A patch in the target cleanup series caused a regression when using
record with target-async. Version 4 of the patch is here:
https://sourceware.org/ml/gdb-patches/2014-03/msg00159.html
The immediate problem is that record supplies to_can_async_p and
to_is_async_p methods, but does not supply a to_async method. So,
when target-async is set, record claims to support async -- but if the
underlying target does not support async, then the to_async method
call will end up in that method's default implementation, namely
tcomplain.
This worked previously because the record target used to provide a
to_async method; one that (erroneously, only at push time) checked the
other members of the target stack, and then simply dropped to_async
calls in the "does not implement async" case.
My first thought was to simply drop tcomplain as the default for
to_async. This works, but Pedro pointed out that the only reason
record has to supply to_can_async_p and to_is_async_p is that these
default to using the find_default_run_target machinery -- and these
defaults are only needed by "run" and "attach".
So, a nicer solution presents itself: change run and attach to
explicitly call into the default run target when needed; and change
to_is_async_p and to_can_async_p to default to "return 0". This makes
the target stack simpler to use and lets us remove the method
implementations from record. This is also in harmony with other plans
for the target stack; namely trying to reduce the impact of
find_default_run_target. This approach makes it clear that
find_default_is_async_p is not needed -- it is asking whether a target
that may not even be pushed is actually async, which seems like a
nonsensical question.
While an improvement, this approach proved to introduce the same bug
when using the core target. Looking a bit deeper, the issue is that
code in "attach" and "run" may need to use either the current target
stack or the default run target -- but different calls into the target
API in those functions could wind up querying different targets.
This new patch makes the target to use more explicit in "run" and
"attach". Then these commands explicitly make the needed calls
against that target. This ensures that a single target is used for
all relevant operations. This lets us remove a couple find_default_*
functions from various targets, including the dummy target. I think
this is a decent understandability improvement.
One issue I see with this patch is that the new calls in "run" and
"attach" are not very much like the rest of the target API. I think
fundamentally this is due to bad factoring in the target API, which
may need to be fixed for multi-target. Tackling that seemed ambitious
for a regression fix.
While working on this I noticed that there don't seem to be any test
cases that involve both target-async and record, so this patch changes
break-precsave.exp to add some. It also changes corefile.exp to add
some target-async tests; these pass with current trunk and with this
patch applied, but fail with the v1 patch.
This patch differs from v4 in that it moves initialization of
to_can_async_p and to_supports_non_stop into inf-child, adds some
assertions to complete_target_initialization, and adds some comments
to target.h.
Built and regtested on x86-64 Fedora 20.
2014-03-12 Tom Tromey <tromey@redhat.com>
* inf-child.c (return_zero): New function.
(inf_child_target): Set to_can_async_p, to_supports_non_stop.
* aix-thread.c (aix_thread_inferior_created): New function.
(aix_thread_attach): Remove.
(init_aix_thread_ops): Don't set to_attach.
(_initialize_aix_thread): Register inferior_created observer.
* corelow.c (init_core_ops): Don't set to_attach or
to_create_inferior.
* exec.c (init_exec_ops): Don't set to_attach or
to_create_inferior.
* infcmd.c (run_command_1): Use find_run_target. Make direct
target calls.
(attach_command): Use find_attach_target. Make direct target
calls.
* record-btrace.c (init_record_btrace_ops): Don't set
to_create_inferior.
* record-full.c (record_full_can_async_p, record_full_is_async_p):
Remove.
(init_record_full_ops, init_record_full_core_ops): Update. Don't
set to_create_inferior.
* target.c (complete_target_initialization): Add assertion.
(target_create_inferior): Remove.
(find_default_attach, find_default_create_inferior): Remove.
(find_attach_target, find_run_target): New functions.
(find_default_is_async_p, find_default_can_async_p)
(target_supports_non_stop, target_attach): Remove.
(init_dummy_target): Don't set to_create_inferior or
to_supports_non_stop.
* target.h (struct target_ops) <to_attach>: Add comment. Remove
TARGET_DEFAULT_FUNC.
<to_create_inferior>: Add comment.
<to_can_async_p, to_is_async_p, to_supports_non_stop>: Use
TARGET_DEFAULT_RETURN.
<to_can_async_p, to_supports_non_stop, to_can_run>: Add comments.
(find_attach_target, find_run_target): Declare.
(target_create_inferior): Remove.
(target_has_execution_1): Update comment.
(target_supports_non_stop): Remove.
* target-delegates.c: Rebuild.
2014-03-12 Tom Tromey <tromey@redhat.com>
* gdb.base/corefile.exp (corefile_test_run, corefile_test_attach):
New procs. Add target-async tests.
* gdb.reverse/break-precsave.exp (precsave_tests): New proc.
Add target-async tests.
2014-02-28 17:47:34 +01:00
|
|
|
|
/* See target.h. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
fix regressions with target-async
A patch in the target cleanup series caused a regression when using
record with target-async. Version 4 of the patch is here:
https://sourceware.org/ml/gdb-patches/2014-03/msg00159.html
The immediate problem is that record supplies to_can_async_p and
to_is_async_p methods, but does not supply a to_async method. So,
when target-async is set, record claims to support async -- but if the
underlying target does not support async, then the to_async method
call will end up in that method's default implementation, namely
tcomplain.
This worked previously because the record target used to provide a
to_async method; one that (erroneously, only at push time) checked the
other members of the target stack, and then simply dropped to_async
calls in the "does not implement async" case.
My first thought was to simply drop tcomplain as the default for
to_async. This works, but Pedro pointed out that the only reason
record has to supply to_can_async_p and to_is_async_p is that these
default to using the find_default_run_target machinery -- and these
defaults are only needed by "run" and "attach".
So, a nicer solution presents itself: change run and attach to
explicitly call into the default run target when needed; and change
to_is_async_p and to_can_async_p to default to "return 0". This makes
the target stack simpler to use and lets us remove the method
implementations from record. This is also in harmony with other plans
for the target stack; namely trying to reduce the impact of
find_default_run_target. This approach makes it clear that
find_default_is_async_p is not needed -- it is asking whether a target
that may not even be pushed is actually async, which seems like a
nonsensical question.
While an improvement, this approach proved to introduce the same bug
when using the core target. Looking a bit deeper, the issue is that
code in "attach" and "run" may need to use either the current target
stack or the default run target -- but different calls into the target
API in those functions could wind up querying different targets.
This new patch makes the target to use more explicit in "run" and
"attach". Then these commands explicitly make the needed calls
against that target. This ensures that a single target is used for
all relevant operations. This lets us remove a couple find_default_*
functions from various targets, including the dummy target. I think
this is a decent understandability improvement.
One issue I see with this patch is that the new calls in "run" and
"attach" are not very much like the rest of the target API. I think
fundamentally this is due to bad factoring in the target API, which
may need to be fixed for multi-target. Tackling that seemed ambitious
for a regression fix.
While working on this I noticed that there don't seem to be any test
cases that involve both target-async and record, so this patch changes
break-precsave.exp to add some. It also changes corefile.exp to add
some target-async tests; these pass with current trunk and with this
patch applied, but fail with the v1 patch.
This patch differs from v4 in that it moves initialization of
to_can_async_p and to_supports_non_stop into inf-child, adds some
assertions to complete_target_initialization, and adds some comments
to target.h.
Built and regtested on x86-64 Fedora 20.
2014-03-12 Tom Tromey <tromey@redhat.com>
* inf-child.c (return_zero): New function.
(inf_child_target): Set to_can_async_p, to_supports_non_stop.
* aix-thread.c (aix_thread_inferior_created): New function.
(aix_thread_attach): Remove.
(init_aix_thread_ops): Don't set to_attach.
(_initialize_aix_thread): Register inferior_created observer.
* corelow.c (init_core_ops): Don't set to_attach or
to_create_inferior.
* exec.c (init_exec_ops): Don't set to_attach or
to_create_inferior.
* infcmd.c (run_command_1): Use find_run_target. Make direct
target calls.
(attach_command): Use find_attach_target. Make direct target
calls.
* record-btrace.c (init_record_btrace_ops): Don't set
to_create_inferior.
* record-full.c (record_full_can_async_p, record_full_is_async_p):
Remove.
(init_record_full_ops, init_record_full_core_ops): Update. Don't
set to_create_inferior.
* target.c (complete_target_initialization): Add assertion.
(target_create_inferior): Remove.
(find_default_attach, find_default_create_inferior): Remove.
(find_attach_target, find_run_target): New functions.
(find_default_is_async_p, find_default_can_async_p)
(target_supports_non_stop, target_attach): Remove.
(init_dummy_target): Don't set to_create_inferior or
to_supports_non_stop.
* target.h (struct target_ops) <to_attach>: Add comment. Remove
TARGET_DEFAULT_FUNC.
<to_create_inferior>: Add comment.
<to_can_async_p, to_is_async_p, to_supports_non_stop>: Use
TARGET_DEFAULT_RETURN.
<to_can_async_p, to_supports_non_stop, to_can_run>: Add comments.
(find_attach_target, find_run_target): Declare.
(target_create_inferior): Remove.
(target_has_execution_1): Update comment.
(target_supports_non_stop): Remove.
* target-delegates.c: Rebuild.
2014-03-12 Tom Tromey <tromey@redhat.com>
* gdb.base/corefile.exp (corefile_test_run, corefile_test_attach):
New procs. Add target-async tests.
* gdb.reverse/break-precsave.exp (precsave_tests): New proc.
Add target-async tests.
2014-02-28 17:47:34 +01:00
|
|
|
|
struct target_ops *
|
|
|
|
|
find_attach_target (void)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
fix regressions with target-async
A patch in the target cleanup series caused a regression when using
record with target-async. Version 4 of the patch is here:
https://sourceware.org/ml/gdb-patches/2014-03/msg00159.html
The immediate problem is that record supplies to_can_async_p and
to_is_async_p methods, but does not supply a to_async method. So,
when target-async is set, record claims to support async -- but if the
underlying target does not support async, then the to_async method
call will end up in that method's default implementation, namely
tcomplain.
This worked previously because the record target used to provide a
to_async method; one that (erroneously, only at push time) checked the
other members of the target stack, and then simply dropped to_async
calls in the "does not implement async" case.
My first thought was to simply drop tcomplain as the default for
to_async. This works, but Pedro pointed out that the only reason
record has to supply to_can_async_p and to_is_async_p is that these
default to using the find_default_run_target machinery -- and these
defaults are only needed by "run" and "attach".
So, a nicer solution presents itself: change run and attach to
explicitly call into the default run target when needed; and change
to_is_async_p and to_can_async_p to default to "return 0". This makes
the target stack simpler to use and lets us remove the method
implementations from record. This is also in harmony with other plans
for the target stack; namely trying to reduce the impact of
find_default_run_target. This approach makes it clear that
find_default_is_async_p is not needed -- it is asking whether a target
that may not even be pushed is actually async, which seems like a
nonsensical question.
While an improvement, this approach proved to introduce the same bug
when using the core target. Looking a bit deeper, the issue is that
code in "attach" and "run" may need to use either the current target
stack or the default run target -- but different calls into the target
API in those functions could wind up querying different targets.
This new patch makes the target to use more explicit in "run" and
"attach". Then these commands explicitly make the needed calls
against that target. This ensures that a single target is used for
all relevant operations. This lets us remove a couple find_default_*
functions from various targets, including the dummy target. I think
this is a decent understandability improvement.
One issue I see with this patch is that the new calls in "run" and
"attach" are not very much like the rest of the target API. I think
fundamentally this is due to bad factoring in the target API, which
may need to be fixed for multi-target. Tackling that seemed ambitious
for a regression fix.
While working on this I noticed that there don't seem to be any test
cases that involve both target-async and record, so this patch changes
break-precsave.exp to add some. It also changes corefile.exp to add
some target-async tests; these pass with current trunk and with this
patch applied, but fail with the v1 patch.
This patch differs from v4 in that it moves initialization of
to_can_async_p and to_supports_non_stop into inf-child, adds some
assertions to complete_target_initialization, and adds some comments
to target.h.
Built and regtested on x86-64 Fedora 20.
2014-03-12 Tom Tromey <tromey@redhat.com>
* inf-child.c (return_zero): New function.
(inf_child_target): Set to_can_async_p, to_supports_non_stop.
* aix-thread.c (aix_thread_inferior_created): New function.
(aix_thread_attach): Remove.
(init_aix_thread_ops): Don't set to_attach.
(_initialize_aix_thread): Register inferior_created observer.
* corelow.c (init_core_ops): Don't set to_attach or
to_create_inferior.
* exec.c (init_exec_ops): Don't set to_attach or
to_create_inferior.
* infcmd.c (run_command_1): Use find_run_target. Make direct
target calls.
(attach_command): Use find_attach_target. Make direct target
calls.
* record-btrace.c (init_record_btrace_ops): Don't set
to_create_inferior.
* record-full.c (record_full_can_async_p, record_full_is_async_p):
Remove.
(init_record_full_ops, init_record_full_core_ops): Update. Don't
set to_create_inferior.
* target.c (complete_target_initialization): Add assertion.
(target_create_inferior): Remove.
(find_default_attach, find_default_create_inferior): Remove.
(find_attach_target, find_run_target): New functions.
(find_default_is_async_p, find_default_can_async_p)
(target_supports_non_stop, target_attach): Remove.
(init_dummy_target): Don't set to_create_inferior or
to_supports_non_stop.
* target.h (struct target_ops) <to_attach>: Add comment. Remove
TARGET_DEFAULT_FUNC.
<to_create_inferior>: Add comment.
<to_can_async_p, to_is_async_p, to_supports_non_stop>: Use
TARGET_DEFAULT_RETURN.
<to_can_async_p, to_supports_non_stop, to_can_run>: Add comments.
(find_attach_target, find_run_target): Declare.
(target_create_inferior): Remove.
(target_has_execution_1): Update comment.
(target_supports_non_stop): Remove.
* target-delegates.c: Rebuild.
2014-03-12 Tom Tromey <tromey@redhat.com>
* gdb.base/corefile.exp (corefile_test_run, corefile_test_attach):
New procs. Add target-async tests.
* gdb.reverse/break-precsave.exp (precsave_tests): New proc.
Add target-async tests.
2014-02-28 17:47:34 +01:00
|
|
|
|
/* If a target on the current stack can attach, use it. */
|
|
|
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
|
|
|
|
{
|
|
|
|
|
if (t->to_attach != NULL)
|
|
|
|
|
break;
|
|
|
|
|
}
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
fix regressions with target-async
A patch in the target cleanup series caused a regression when using
record with target-async. Version 4 of the patch is here:
https://sourceware.org/ml/gdb-patches/2014-03/msg00159.html
The immediate problem is that record supplies to_can_async_p and
to_is_async_p methods, but does not supply a to_async method. So,
when target-async is set, record claims to support async -- but if the
underlying target does not support async, then the to_async method
call will end up in that method's default implementation, namely
tcomplain.
This worked previously because the record target used to provide a
to_async method; one that (erroneously, only at push time) checked the
other members of the target stack, and then simply dropped to_async
calls in the "does not implement async" case.
My first thought was to simply drop tcomplain as the default for
to_async. This works, but Pedro pointed out that the only reason
record has to supply to_can_async_p and to_is_async_p is that these
default to using the find_default_run_target machinery -- and these
defaults are only needed by "run" and "attach".
So, a nicer solution presents itself: change run and attach to
explicitly call into the default run target when needed; and change
to_is_async_p and to_can_async_p to default to "return 0". This makes
the target stack simpler to use and lets us remove the method
implementations from record. This is also in harmony with other plans
for the target stack; namely trying to reduce the impact of
find_default_run_target. This approach makes it clear that
find_default_is_async_p is not needed -- it is asking whether a target
that may not even be pushed is actually async, which seems like a
nonsensical question.
While an improvement, this approach proved to introduce the same bug
when using the core target. Looking a bit deeper, the issue is that
code in "attach" and "run" may need to use either the current target
stack or the default run target -- but different calls into the target
API in those functions could wind up querying different targets.
This new patch makes the target to use more explicit in "run" and
"attach". Then these commands explicitly make the needed calls
against that target. This ensures that a single target is used for
all relevant operations. This lets us remove a couple find_default_*
functions from various targets, including the dummy target. I think
this is a decent understandability improvement.
One issue I see with this patch is that the new calls in "run" and
"attach" are not very much like the rest of the target API. I think
fundamentally this is due to bad factoring in the target API, which
may need to be fixed for multi-target. Tackling that seemed ambitious
for a regression fix.
While working on this I noticed that there don't seem to be any test
cases that involve both target-async and record, so this patch changes
break-precsave.exp to add some. It also changes corefile.exp to add
some target-async tests; these pass with current trunk and with this
patch applied, but fail with the v1 patch.
This patch differs from v4 in that it moves initialization of
to_can_async_p and to_supports_non_stop into inf-child, adds some
assertions to complete_target_initialization, and adds some comments
to target.h.
Built and regtested on x86-64 Fedora 20.
2014-03-12 Tom Tromey <tromey@redhat.com>
* inf-child.c (return_zero): New function.
(inf_child_target): Set to_can_async_p, to_supports_non_stop.
* aix-thread.c (aix_thread_inferior_created): New function.
(aix_thread_attach): Remove.
(init_aix_thread_ops): Don't set to_attach.
(_initialize_aix_thread): Register inferior_created observer.
* corelow.c (init_core_ops): Don't set to_attach or
to_create_inferior.
* exec.c (init_exec_ops): Don't set to_attach or
to_create_inferior.
* infcmd.c (run_command_1): Use find_run_target. Make direct
target calls.
(attach_command): Use find_attach_target. Make direct target
calls.
* record-btrace.c (init_record_btrace_ops): Don't set
to_create_inferior.
* record-full.c (record_full_can_async_p, record_full_is_async_p):
Remove.
(init_record_full_ops, init_record_full_core_ops): Update. Don't
set to_create_inferior.
* target.c (complete_target_initialization): Add assertion.
(target_create_inferior): Remove.
(find_default_attach, find_default_create_inferior): Remove.
(find_attach_target, find_run_target): New functions.
(find_default_is_async_p, find_default_can_async_p)
(target_supports_non_stop, target_attach): Remove.
(init_dummy_target): Don't set to_create_inferior or
to_supports_non_stop.
* target.h (struct target_ops) <to_attach>: Add comment. Remove
TARGET_DEFAULT_FUNC.
<to_create_inferior>: Add comment.
<to_can_async_p, to_is_async_p, to_supports_non_stop>: Use
TARGET_DEFAULT_RETURN.
<to_can_async_p, to_supports_non_stop, to_can_run>: Add comments.
(find_attach_target, find_run_target): Declare.
(target_create_inferior): Remove.
(target_has_execution_1): Update comment.
(target_supports_non_stop): Remove.
* target-delegates.c: Rebuild.
2014-03-12 Tom Tromey <tromey@redhat.com>
* gdb.base/corefile.exp (corefile_test_run, corefile_test_attach):
New procs. Add target-async tests.
* gdb.reverse/break-precsave.exp (precsave_tests): New proc.
Add target-async tests.
2014-02-28 17:47:34 +01:00
|
|
|
|
/* Otherwise, use the default run target for attaching. */
|
|
|
|
|
if (t == NULL)
|
|
|
|
|
t = find_default_run_target ("attach");
|
gdb/
* target.h (struct target_ops): Delete to_async_mask_value and add
to_async_mask.
(target_is_async_p, target_async): Formatting.
(target_async_mask_value): Delete.
(target_async_mask): Delete function declaration, and add new
target macro with the same name.
* target.c (update_current_target): Replace to_async_mask_value by
to_async_mask. Default to_async_mask to return_one.
(target_async_mask): Delete.
(find_default_can_async_p, find_default_is_async_p): New.
(init_dummy_target): register find_default_can_async_p and
find_default_is_async_p on the dummy target.
* linux-nat.c: Include inf-loop.h, event-loop.h and event-top.h.
(debug_linux_nat_async): New global.
(show_debug_linux_nat_async): New function.
(linux_nat_async_enabled, linux_nat_async_mask_value)
(linux_nat_event_pipe, linux_nat_num_queued_events)
(linux_nat_async_events_enabled): New globals.
(struct waitpid_result): New struct.
(waitpid_queue): New global.
(queued_waitpid, push_waitpid, drain_queued_events): New.
(my_waitpid): Call queued_waitpid.
(linux_child_follow_fork): Disable async events during the call.
(blocked_mask): Delete.
(sync_sigchld_action, async_sigchld_action): New globals.
(lin_lwp_attach_lwp): In sync mode, don't reblock SIGCHLD. In
async mode, block events during the call.
(linux_nat_create_inferior): New.
(linux_nat_attach): In sync mode, restore the mask states. In
async mode, wake the event loop immediatelly.
(detach_callback): Drain all queued events of the lwp we're
detaching from.
(linux_nat_detach): Block async mode, and drain events of the main
process.
(linux_nat_resume): If in async mode, mask async events during the
call. If short circuiting, force event loop to wake up. If
resuming, set target_executing, and register target events in the
event loop.
(pipe_to_local_event_queue, local_event_queue_to_pipe): New.
(linux_nat_wait): In async mode, block events during the call.
Only enable/disable passing SIGINT to the inferior in sync mode.
Get events from local waitpid queue. If no interesting events was
found, return to events loop. Reregister target events in the
event loop on exit. In sync mode, no need to reblock SIGCHLD.
(linux_nat_kill): Disable events on entry.
(linux_nat_mourn_inferior): In sync mode, don't restore the masks
here. Detach async mode from the event loop if there are no more
forks available, otherwise leave it on.
(sigchld_handler): Assure this is called only in sync mode.
(linux_async_permitted, linux_async_permitted_1): New globals.
(set_maintenance_linux_async_permitted)
(show_maintenance_linux_async_permitted): New functions.
(linux_nat_is_async_p, linux_nat_can_async_p)
(linux_nat_async_mask): New.
(linux_nat_event_pipe_pop, linux_nat_event_pipe_push): New.
(get_pending_events, async_sigchld_handler): New.
(linux_nat_async_events): New.
(async_terminal_is_ours): New global.
(linux_nat_terminal_inferior, linux_nat_terminal_ours): New.
(async_client_callback, async_client_context): New.
(linux_nat_async_file_handler, linux_nat_async)
(linux_nat_disable_async, linux_nat_enable_async): New.
(linux_nat_add_target): Register linux_nat_create_inferior,
linux_nat_can_async_p, linux_nat_is_async_p, linux_nat_async,
linux_nat_async_mask, linux_nat_terminal_inferior and
linux_nat_terminal_ours.
(_initialize_linux_nat): Remove local action variable, and update
code that used it to use sync_sigchld_action. Add new
"lin-lwp-async" debug set/show command. Put the "lin-lwp" debug
set/show command in the maintenance class. Add new "linux-async"
maintenance set/show command. Block SIGCHLD by default. Setup
async_sichld_action, and sync_sigchld_action. Install the default
async mode.
(lin_thread_get_thread_signals): Use a local sigset_t for blocking
the cancel signals.
* linux-thread-db.c (re_check_for_thread_db): New.
(clear_lwpid_callback): Handle TARGET_WAITKIND_IGNORE.
(thread_db_can_async_p, thread_db_is_async_p, thread_db_async)
(thread_db_async_mask): New.
(init_thread_db_ops): Register thread_db_can_async_p,
thread_db_is_async_p, thread_db_async and thread_db_async_mask.
* remote.c (remote_async_mask_value): New.
(remote_return_zero): New.
(init_remote_ops): Register remote_return_zero as callbacks of
to_can_async_p and to_is_async_p.
(remote_can_async_p, remote_is_async_p, remote_async): Update to
use remote_async_mask_value.
(remote_async_mask): New.
(init_remote_async_ops): Remove to_async_mask_value setting and
register remote_async_mask as to_async_mask callback in
remote_async_ops.
* Makefile.in (linux-nat.o): Update.
gdb/doc/
* gdb.texinfo (Debugging Output): Document
"set/show debug lin-lwp-async".
(Maintenance Commands): Document "maint set/show linux-async".
2008-03-21 18:09:35 +01:00
|
|
|
|
|
fix regressions with target-async
A patch in the target cleanup series caused a regression when using
record with target-async. Version 4 of the patch is here:
https://sourceware.org/ml/gdb-patches/2014-03/msg00159.html
The immediate problem is that record supplies to_can_async_p and
to_is_async_p methods, but does not supply a to_async method. So,
when target-async is set, record claims to support async -- but if the
underlying target does not support async, then the to_async method
call will end up in that method's default implementation, namely
tcomplain.
This worked previously because the record target used to provide a
to_async method; one that (erroneously, only at push time) checked the
other members of the target stack, and then simply dropped to_async
calls in the "does not implement async" case.
My first thought was to simply drop tcomplain as the default for
to_async. This works, but Pedro pointed out that the only reason
record has to supply to_can_async_p and to_is_async_p is that these
default to using the find_default_run_target machinery -- and these
defaults are only needed by "run" and "attach".
So, a nicer solution presents itself: change run and attach to
explicitly call into the default run target when needed; and change
to_is_async_p and to_can_async_p to default to "return 0". This makes
the target stack simpler to use and lets us remove the method
implementations from record. This is also in harmony with other plans
for the target stack; namely trying to reduce the impact of
find_default_run_target. This approach makes it clear that
find_default_is_async_p is not needed -- it is asking whether a target
that may not even be pushed is actually async, which seems like a
nonsensical question.
While an improvement, this approach proved to introduce the same bug
when using the core target. Looking a bit deeper, the issue is that
code in "attach" and "run" may need to use either the current target
stack or the default run target -- but different calls into the target
API in those functions could wind up querying different targets.
This new patch makes the target to use more explicit in "run" and
"attach". Then these commands explicitly make the needed calls
against that target. This ensures that a single target is used for
all relevant operations. This lets us remove a couple find_default_*
functions from various targets, including the dummy target. I think
this is a decent understandability improvement.
One issue I see with this patch is that the new calls in "run" and
"attach" are not very much like the rest of the target API. I think
fundamentally this is due to bad factoring in the target API, which
may need to be fixed for multi-target. Tackling that seemed ambitious
for a regression fix.
While working on this I noticed that there don't seem to be any test
cases that involve both target-async and record, so this patch changes
break-precsave.exp to add some. It also changes corefile.exp to add
some target-async tests; these pass with current trunk and with this
patch applied, but fail with the v1 patch.
This patch differs from v4 in that it moves initialization of
to_can_async_p and to_supports_non_stop into inf-child, adds some
assertions to complete_target_initialization, and adds some comments
to target.h.
Built and regtested on x86-64 Fedora 20.
2014-03-12 Tom Tromey <tromey@redhat.com>
* inf-child.c (return_zero): New function.
(inf_child_target): Set to_can_async_p, to_supports_non_stop.
* aix-thread.c (aix_thread_inferior_created): New function.
(aix_thread_attach): Remove.
(init_aix_thread_ops): Don't set to_attach.
(_initialize_aix_thread): Register inferior_created observer.
* corelow.c (init_core_ops): Don't set to_attach or
to_create_inferior.
* exec.c (init_exec_ops): Don't set to_attach or
to_create_inferior.
* infcmd.c (run_command_1): Use find_run_target. Make direct
target calls.
(attach_command): Use find_attach_target. Make direct target
calls.
* record-btrace.c (init_record_btrace_ops): Don't set
to_create_inferior.
* record-full.c (record_full_can_async_p, record_full_is_async_p):
Remove.
(init_record_full_ops, init_record_full_core_ops): Update. Don't
set to_create_inferior.
* target.c (complete_target_initialization): Add assertion.
(target_create_inferior): Remove.
(find_default_attach, find_default_create_inferior): Remove.
(find_attach_target, find_run_target): New functions.
(find_default_is_async_p, find_default_can_async_p)
(target_supports_non_stop, target_attach): Remove.
(init_dummy_target): Don't set to_create_inferior or
to_supports_non_stop.
* target.h (struct target_ops) <to_attach>: Add comment. Remove
TARGET_DEFAULT_FUNC.
<to_create_inferior>: Add comment.
<to_can_async_p, to_is_async_p, to_supports_non_stop>: Use
TARGET_DEFAULT_RETURN.
<to_can_async_p, to_supports_non_stop, to_can_run>: Add comments.
(find_attach_target, find_run_target): Declare.
(target_create_inferior): Remove.
(target_has_execution_1): Update comment.
(target_supports_non_stop): Remove.
* target-delegates.c: Rebuild.
2014-03-12 Tom Tromey <tromey@redhat.com>
* gdb.base/corefile.exp (corefile_test_run, corefile_test_attach):
New procs. Add target-async tests.
* gdb.reverse/break-precsave.exp (precsave_tests): New proc.
Add target-async tests.
2014-02-28 17:47:34 +01:00
|
|
|
|
return t;
|
gdb/
* target.h (struct target_ops): Delete to_async_mask_value and add
to_async_mask.
(target_is_async_p, target_async): Formatting.
(target_async_mask_value): Delete.
(target_async_mask): Delete function declaration, and add new
target macro with the same name.
* target.c (update_current_target): Replace to_async_mask_value by
to_async_mask. Default to_async_mask to return_one.
(target_async_mask): Delete.
(find_default_can_async_p, find_default_is_async_p): New.
(init_dummy_target): register find_default_can_async_p and
find_default_is_async_p on the dummy target.
* linux-nat.c: Include inf-loop.h, event-loop.h and event-top.h.
(debug_linux_nat_async): New global.
(show_debug_linux_nat_async): New function.
(linux_nat_async_enabled, linux_nat_async_mask_value)
(linux_nat_event_pipe, linux_nat_num_queued_events)
(linux_nat_async_events_enabled): New globals.
(struct waitpid_result): New struct.
(waitpid_queue): New global.
(queued_waitpid, push_waitpid, drain_queued_events): New.
(my_waitpid): Call queued_waitpid.
(linux_child_follow_fork): Disable async events during the call.
(blocked_mask): Delete.
(sync_sigchld_action, async_sigchld_action): New globals.
(lin_lwp_attach_lwp): In sync mode, don't reblock SIGCHLD. In
async mode, block events during the call.
(linux_nat_create_inferior): New.
(linux_nat_attach): In sync mode, restore the mask states. In
async mode, wake the event loop immediatelly.
(detach_callback): Drain all queued events of the lwp we're
detaching from.
(linux_nat_detach): Block async mode, and drain events of the main
process.
(linux_nat_resume): If in async mode, mask async events during the
call. If short circuiting, force event loop to wake up. If
resuming, set target_executing, and register target events in the
event loop.
(pipe_to_local_event_queue, local_event_queue_to_pipe): New.
(linux_nat_wait): In async mode, block events during the call.
Only enable/disable passing SIGINT to the inferior in sync mode.
Get events from local waitpid queue. If no interesting events was
found, return to events loop. Reregister target events in the
event loop on exit. In sync mode, no need to reblock SIGCHLD.
(linux_nat_kill): Disable events on entry.
(linux_nat_mourn_inferior): In sync mode, don't restore the masks
here. Detach async mode from the event loop if there are no more
forks available, otherwise leave it on.
(sigchld_handler): Assure this is called only in sync mode.
(linux_async_permitted, linux_async_permitted_1): New globals.
(set_maintenance_linux_async_permitted)
(show_maintenance_linux_async_permitted): New functions.
(linux_nat_is_async_p, linux_nat_can_async_p)
(linux_nat_async_mask): New.
(linux_nat_event_pipe_pop, linux_nat_event_pipe_push): New.
(get_pending_events, async_sigchld_handler): New.
(linux_nat_async_events): New.
(async_terminal_is_ours): New global.
(linux_nat_terminal_inferior, linux_nat_terminal_ours): New.
(async_client_callback, async_client_context): New.
(linux_nat_async_file_handler, linux_nat_async)
(linux_nat_disable_async, linux_nat_enable_async): New.
(linux_nat_add_target): Register linux_nat_create_inferior,
linux_nat_can_async_p, linux_nat_is_async_p, linux_nat_async,
linux_nat_async_mask, linux_nat_terminal_inferior and
linux_nat_terminal_ours.
(_initialize_linux_nat): Remove local action variable, and update
code that used it to use sync_sigchld_action. Add new
"lin-lwp-async" debug set/show command. Put the "lin-lwp" debug
set/show command in the maintenance class. Add new "linux-async"
maintenance set/show command. Block SIGCHLD by default. Setup
async_sichld_action, and sync_sigchld_action. Install the default
async mode.
(lin_thread_get_thread_signals): Use a local sigset_t for blocking
the cancel signals.
* linux-thread-db.c (re_check_for_thread_db): New.
(clear_lwpid_callback): Handle TARGET_WAITKIND_IGNORE.
(thread_db_can_async_p, thread_db_is_async_p, thread_db_async)
(thread_db_async_mask): New.
(init_thread_db_ops): Register thread_db_can_async_p,
thread_db_is_async_p, thread_db_async and thread_db_async_mask.
* remote.c (remote_async_mask_value): New.
(remote_return_zero): New.
(init_remote_ops): Register remote_return_zero as callbacks of
to_can_async_p and to_is_async_p.
(remote_can_async_p, remote_is_async_p, remote_async): Update to
use remote_async_mask_value.
(remote_async_mask): New.
(init_remote_async_ops): Remove to_async_mask_value setting and
register remote_async_mask as to_async_mask callback in
remote_async_ops.
* Makefile.in (linux-nat.o): Update.
gdb/doc/
* gdb.texinfo (Debugging Output): Document
"set/show debug lin-lwp-async".
(Maintenance Commands): Document "maint set/show linux-async".
2008-03-21 18:09:35 +01:00
|
|
|
|
}
|
|
|
|
|
|
fix regressions with target-async
A patch in the target cleanup series caused a regression when using
record with target-async. Version 4 of the patch is here:
https://sourceware.org/ml/gdb-patches/2014-03/msg00159.html
The immediate problem is that record supplies to_can_async_p and
to_is_async_p methods, but does not supply a to_async method. So,
when target-async is set, record claims to support async -- but if the
underlying target does not support async, then the to_async method
call will end up in that method's default implementation, namely
tcomplain.
This worked previously because the record target used to provide a
to_async method; one that (erroneously, only at push time) checked the
other members of the target stack, and then simply dropped to_async
calls in the "does not implement async" case.
My first thought was to simply drop tcomplain as the default for
to_async. This works, but Pedro pointed out that the only reason
record has to supply to_can_async_p and to_is_async_p is that these
default to using the find_default_run_target machinery -- and these
defaults are only needed by "run" and "attach".
So, a nicer solution presents itself: change run and attach to
explicitly call into the default run target when needed; and change
to_is_async_p and to_can_async_p to default to "return 0". This makes
the target stack simpler to use and lets us remove the method
implementations from record. This is also in harmony with other plans
for the target stack; namely trying to reduce the impact of
find_default_run_target. This approach makes it clear that
find_default_is_async_p is not needed -- it is asking whether a target
that may not even be pushed is actually async, which seems like a
nonsensical question.
While an improvement, this approach proved to introduce the same bug
when using the core target. Looking a bit deeper, the issue is that
code in "attach" and "run" may need to use either the current target
stack or the default run target -- but different calls into the target
API in those functions could wind up querying different targets.
This new patch makes the target to use more explicit in "run" and
"attach". Then these commands explicitly make the needed calls
against that target. This ensures that a single target is used for
all relevant operations. This lets us remove a couple find_default_*
functions from various targets, including the dummy target. I think
this is a decent understandability improvement.
One issue I see with this patch is that the new calls in "run" and
"attach" are not very much like the rest of the target API. I think
fundamentally this is due to bad factoring in the target API, which
may need to be fixed for multi-target. Tackling that seemed ambitious
for a regression fix.
While working on this I noticed that there don't seem to be any test
cases that involve both target-async and record, so this patch changes
break-precsave.exp to add some. It also changes corefile.exp to add
some target-async tests; these pass with current trunk and with this
patch applied, but fail with the v1 patch.
This patch differs from v4 in that it moves initialization of
to_can_async_p and to_supports_non_stop into inf-child, adds some
assertions to complete_target_initialization, and adds some comments
to target.h.
Built and regtested on x86-64 Fedora 20.
2014-03-12 Tom Tromey <tromey@redhat.com>
* inf-child.c (return_zero): New function.
(inf_child_target): Set to_can_async_p, to_supports_non_stop.
* aix-thread.c (aix_thread_inferior_created): New function.
(aix_thread_attach): Remove.
(init_aix_thread_ops): Don't set to_attach.
(_initialize_aix_thread): Register inferior_created observer.
* corelow.c (init_core_ops): Don't set to_attach or
to_create_inferior.
* exec.c (init_exec_ops): Don't set to_attach or
to_create_inferior.
* infcmd.c (run_command_1): Use find_run_target. Make direct
target calls.
(attach_command): Use find_attach_target. Make direct target
calls.
* record-btrace.c (init_record_btrace_ops): Don't set
to_create_inferior.
* record-full.c (record_full_can_async_p, record_full_is_async_p):
Remove.
(init_record_full_ops, init_record_full_core_ops): Update. Don't
set to_create_inferior.
* target.c (complete_target_initialization): Add assertion.
(target_create_inferior): Remove.
(find_default_attach, find_default_create_inferior): Remove.
(find_attach_target, find_run_target): New functions.
(find_default_is_async_p, find_default_can_async_p)
(target_supports_non_stop, target_attach): Remove.
(init_dummy_target): Don't set to_create_inferior or
to_supports_non_stop.
* target.h (struct target_ops) <to_attach>: Add comment. Remove
TARGET_DEFAULT_FUNC.
<to_create_inferior>: Add comment.
<to_can_async_p, to_is_async_p, to_supports_non_stop>: Use
TARGET_DEFAULT_RETURN.
<to_can_async_p, to_supports_non_stop, to_can_run>: Add comments.
(find_attach_target, find_run_target): Declare.
(target_create_inferior): Remove.
(target_has_execution_1): Update comment.
(target_supports_non_stop): Remove.
* target-delegates.c: Rebuild.
2014-03-12 Tom Tromey <tromey@redhat.com>
* gdb.base/corefile.exp (corefile_test_run, corefile_test_attach):
New procs. Add target-async tests.
* gdb.reverse/break-precsave.exp (precsave_tests): New proc.
Add target-async tests.
2014-02-28 17:47:34 +01:00
|
|
|
|
/* See target.h. */
|
gdb/
* target.h (struct target_ops): Delete to_async_mask_value and add
to_async_mask.
(target_is_async_p, target_async): Formatting.
(target_async_mask_value): Delete.
(target_async_mask): Delete function declaration, and add new
target macro with the same name.
* target.c (update_current_target): Replace to_async_mask_value by
to_async_mask. Default to_async_mask to return_one.
(target_async_mask): Delete.
(find_default_can_async_p, find_default_is_async_p): New.
(init_dummy_target): register find_default_can_async_p and
find_default_is_async_p on the dummy target.
* linux-nat.c: Include inf-loop.h, event-loop.h and event-top.h.
(debug_linux_nat_async): New global.
(show_debug_linux_nat_async): New function.
(linux_nat_async_enabled, linux_nat_async_mask_value)
(linux_nat_event_pipe, linux_nat_num_queued_events)
(linux_nat_async_events_enabled): New globals.
(struct waitpid_result): New struct.
(waitpid_queue): New global.
(queued_waitpid, push_waitpid, drain_queued_events): New.
(my_waitpid): Call queued_waitpid.
(linux_child_follow_fork): Disable async events during the call.
(blocked_mask): Delete.
(sync_sigchld_action, async_sigchld_action): New globals.
(lin_lwp_attach_lwp): In sync mode, don't reblock SIGCHLD. In
async mode, block events during the call.
(linux_nat_create_inferior): New.
(linux_nat_attach): In sync mode, restore the mask states. In
async mode, wake the event loop immediatelly.
(detach_callback): Drain all queued events of the lwp we're
detaching from.
(linux_nat_detach): Block async mode, and drain events of the main
process.
(linux_nat_resume): If in async mode, mask async events during the
call. If short circuiting, force event loop to wake up. If
resuming, set target_executing, and register target events in the
event loop.
(pipe_to_local_event_queue, local_event_queue_to_pipe): New.
(linux_nat_wait): In async mode, block events during the call.
Only enable/disable passing SIGINT to the inferior in sync mode.
Get events from local waitpid queue. If no interesting events was
found, return to events loop. Reregister target events in the
event loop on exit. In sync mode, no need to reblock SIGCHLD.
(linux_nat_kill): Disable events on entry.
(linux_nat_mourn_inferior): In sync mode, don't restore the masks
here. Detach async mode from the event loop if there are no more
forks available, otherwise leave it on.
(sigchld_handler): Assure this is called only in sync mode.
(linux_async_permitted, linux_async_permitted_1): New globals.
(set_maintenance_linux_async_permitted)
(show_maintenance_linux_async_permitted): New functions.
(linux_nat_is_async_p, linux_nat_can_async_p)
(linux_nat_async_mask): New.
(linux_nat_event_pipe_pop, linux_nat_event_pipe_push): New.
(get_pending_events, async_sigchld_handler): New.
(linux_nat_async_events): New.
(async_terminal_is_ours): New global.
(linux_nat_terminal_inferior, linux_nat_terminal_ours): New.
(async_client_callback, async_client_context): New.
(linux_nat_async_file_handler, linux_nat_async)
(linux_nat_disable_async, linux_nat_enable_async): New.
(linux_nat_add_target): Register linux_nat_create_inferior,
linux_nat_can_async_p, linux_nat_is_async_p, linux_nat_async,
linux_nat_async_mask, linux_nat_terminal_inferior and
linux_nat_terminal_ours.
(_initialize_linux_nat): Remove local action variable, and update
code that used it to use sync_sigchld_action. Add new
"lin-lwp-async" debug set/show command. Put the "lin-lwp" debug
set/show command in the maintenance class. Add new "linux-async"
maintenance set/show command. Block SIGCHLD by default. Setup
async_sichld_action, and sync_sigchld_action. Install the default
async mode.
(lin_thread_get_thread_signals): Use a local sigset_t for blocking
the cancel signals.
* linux-thread-db.c (re_check_for_thread_db): New.
(clear_lwpid_callback): Handle TARGET_WAITKIND_IGNORE.
(thread_db_can_async_p, thread_db_is_async_p, thread_db_async)
(thread_db_async_mask): New.
(init_thread_db_ops): Register thread_db_can_async_p,
thread_db_is_async_p, thread_db_async and thread_db_async_mask.
* remote.c (remote_async_mask_value): New.
(remote_return_zero): New.
(init_remote_ops): Register remote_return_zero as callbacks of
to_can_async_p and to_is_async_p.
(remote_can_async_p, remote_is_async_p, remote_async): Update to
use remote_async_mask_value.
(remote_async_mask): New.
(init_remote_async_ops): Remove to_async_mask_value setting and
register remote_async_mask as to_async_mask callback in
remote_async_ops.
* Makefile.in (linux-nat.o): Update.
gdb/doc/
* gdb.texinfo (Debugging Output): Document
"set/show debug lin-lwp-async".
(Maintenance Commands): Document "maint set/show linux-async".
2008-03-21 18:09:35 +01:00
|
|
|
|
|
fix regressions with target-async
A patch in the target cleanup series caused a regression when using
record with target-async. Version 4 of the patch is here:
https://sourceware.org/ml/gdb-patches/2014-03/msg00159.html
The immediate problem is that record supplies to_can_async_p and
to_is_async_p methods, but does not supply a to_async method. So,
when target-async is set, record claims to support async -- but if the
underlying target does not support async, then the to_async method
call will end up in that method's default implementation, namely
tcomplain.
This worked previously because the record target used to provide a
to_async method; one that (erroneously, only at push time) checked the
other members of the target stack, and then simply dropped to_async
calls in the "does not implement async" case.
My first thought was to simply drop tcomplain as the default for
to_async. This works, but Pedro pointed out that the only reason
record has to supply to_can_async_p and to_is_async_p is that these
default to using the find_default_run_target machinery -- and these
defaults are only needed by "run" and "attach".
So, a nicer solution presents itself: change run and attach to
explicitly call into the default run target when needed; and change
to_is_async_p and to_can_async_p to default to "return 0". This makes
the target stack simpler to use and lets us remove the method
implementations from record. This is also in harmony with other plans
for the target stack; namely trying to reduce the impact of
find_default_run_target. This approach makes it clear that
find_default_is_async_p is not needed -- it is asking whether a target
that may not even be pushed is actually async, which seems like a
nonsensical question.
While an improvement, this approach proved to introduce the same bug
when using the core target. Looking a bit deeper, the issue is that
code in "attach" and "run" may need to use either the current target
stack or the default run target -- but different calls into the target
API in those functions could wind up querying different targets.
This new patch makes the target to use more explicit in "run" and
"attach". Then these commands explicitly make the needed calls
against that target. This ensures that a single target is used for
all relevant operations. This lets us remove a couple find_default_*
functions from various targets, including the dummy target. I think
this is a decent understandability improvement.
One issue I see with this patch is that the new calls in "run" and
"attach" are not very much like the rest of the target API. I think
fundamentally this is due to bad factoring in the target API, which
may need to be fixed for multi-target. Tackling that seemed ambitious
for a regression fix.
While working on this I noticed that there don't seem to be any test
cases that involve both target-async and record, so this patch changes
break-precsave.exp to add some. It also changes corefile.exp to add
some target-async tests; these pass with current trunk and with this
patch applied, but fail with the v1 patch.
This patch differs from v4 in that it moves initialization of
to_can_async_p and to_supports_non_stop into inf-child, adds some
assertions to complete_target_initialization, and adds some comments
to target.h.
Built and regtested on x86-64 Fedora 20.
2014-03-12 Tom Tromey <tromey@redhat.com>
* inf-child.c (return_zero): New function.
(inf_child_target): Set to_can_async_p, to_supports_non_stop.
* aix-thread.c (aix_thread_inferior_created): New function.
(aix_thread_attach): Remove.
(init_aix_thread_ops): Don't set to_attach.
(_initialize_aix_thread): Register inferior_created observer.
* corelow.c (init_core_ops): Don't set to_attach or
to_create_inferior.
* exec.c (init_exec_ops): Don't set to_attach or
to_create_inferior.
* infcmd.c (run_command_1): Use find_run_target. Make direct
target calls.
(attach_command): Use find_attach_target. Make direct target
calls.
* record-btrace.c (init_record_btrace_ops): Don't set
to_create_inferior.
* record-full.c (record_full_can_async_p, record_full_is_async_p):
Remove.
(init_record_full_ops, init_record_full_core_ops): Update. Don't
set to_create_inferior.
* target.c (complete_target_initialization): Add assertion.
(target_create_inferior): Remove.
(find_default_attach, find_default_create_inferior): Remove.
(find_attach_target, find_run_target): New functions.
(find_default_is_async_p, find_default_can_async_p)
(target_supports_non_stop, target_attach): Remove.
(init_dummy_target): Don't set to_create_inferior or
to_supports_non_stop.
* target.h (struct target_ops) <to_attach>: Add comment. Remove
TARGET_DEFAULT_FUNC.
<to_create_inferior>: Add comment.
<to_can_async_p, to_is_async_p, to_supports_non_stop>: Use
TARGET_DEFAULT_RETURN.
<to_can_async_p, to_supports_non_stop, to_can_run>: Add comments.
(find_attach_target, find_run_target): Declare.
(target_create_inferior): Remove.
(target_has_execution_1): Update comment.
(target_supports_non_stop): Remove.
* target-delegates.c: Rebuild.
2014-03-12 Tom Tromey <tromey@redhat.com>
* gdb.base/corefile.exp (corefile_test_run, corefile_test_attach):
New procs. Add target-async tests.
* gdb.reverse/break-precsave.exp (precsave_tests): New proc.
Add target-async tests.
2014-02-28 17:47:34 +01:00
|
|
|
|
struct target_ops *
|
|
|
|
|
find_run_target (void)
|
2008-08-19 15:22:14 +02:00
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
fix regressions with target-async
A patch in the target cleanup series caused a regression when using
record with target-async. Version 4 of the patch is here:
https://sourceware.org/ml/gdb-patches/2014-03/msg00159.html
The immediate problem is that record supplies to_can_async_p and
to_is_async_p methods, but does not supply a to_async method. So,
when target-async is set, record claims to support async -- but if the
underlying target does not support async, then the to_async method
call will end up in that method's default implementation, namely
tcomplain.
This worked previously because the record target used to provide a
to_async method; one that (erroneously, only at push time) checked the
other members of the target stack, and then simply dropped to_async
calls in the "does not implement async" case.
My first thought was to simply drop tcomplain as the default for
to_async. This works, but Pedro pointed out that the only reason
record has to supply to_can_async_p and to_is_async_p is that these
default to using the find_default_run_target machinery -- and these
defaults are only needed by "run" and "attach".
So, a nicer solution presents itself: change run and attach to
explicitly call into the default run target when needed; and change
to_is_async_p and to_can_async_p to default to "return 0". This makes
the target stack simpler to use and lets us remove the method
implementations from record. This is also in harmony with other plans
for the target stack; namely trying to reduce the impact of
find_default_run_target. This approach makes it clear that
find_default_is_async_p is not needed -- it is asking whether a target
that may not even be pushed is actually async, which seems like a
nonsensical question.
While an improvement, this approach proved to introduce the same bug
when using the core target. Looking a bit deeper, the issue is that
code in "attach" and "run" may need to use either the current target
stack or the default run target -- but different calls into the target
API in those functions could wind up querying different targets.
This new patch makes the target to use more explicit in "run" and
"attach". Then these commands explicitly make the needed calls
against that target. This ensures that a single target is used for
all relevant operations. This lets us remove a couple find_default_*
functions from various targets, including the dummy target. I think
this is a decent understandability improvement.
One issue I see with this patch is that the new calls in "run" and
"attach" are not very much like the rest of the target API. I think
fundamentally this is due to bad factoring in the target API, which
may need to be fixed for multi-target. Tackling that seemed ambitious
for a regression fix.
While working on this I noticed that there don't seem to be any test
cases that involve both target-async and record, so this patch changes
break-precsave.exp to add some. It also changes corefile.exp to add
some target-async tests; these pass with current trunk and with this
patch applied, but fail with the v1 patch.
This patch differs from v4 in that it moves initialization of
to_can_async_p and to_supports_non_stop into inf-child, adds some
assertions to complete_target_initialization, and adds some comments
to target.h.
Built and regtested on x86-64 Fedora 20.
2014-03-12 Tom Tromey <tromey@redhat.com>
* inf-child.c (return_zero): New function.
(inf_child_target): Set to_can_async_p, to_supports_non_stop.
* aix-thread.c (aix_thread_inferior_created): New function.
(aix_thread_attach): Remove.
(init_aix_thread_ops): Don't set to_attach.
(_initialize_aix_thread): Register inferior_created observer.
* corelow.c (init_core_ops): Don't set to_attach or
to_create_inferior.
* exec.c (init_exec_ops): Don't set to_attach or
to_create_inferior.
* infcmd.c (run_command_1): Use find_run_target. Make direct
target calls.
(attach_command): Use find_attach_target. Make direct target
calls.
* record-btrace.c (init_record_btrace_ops): Don't set
to_create_inferior.
* record-full.c (record_full_can_async_p, record_full_is_async_p):
Remove.
(init_record_full_ops, init_record_full_core_ops): Update. Don't
set to_create_inferior.
* target.c (complete_target_initialization): Add assertion.
(target_create_inferior): Remove.
(find_default_attach, find_default_create_inferior): Remove.
(find_attach_target, find_run_target): New functions.
(find_default_is_async_p, find_default_can_async_p)
(target_supports_non_stop, target_attach): Remove.
(init_dummy_target): Don't set to_create_inferior or
to_supports_non_stop.
* target.h (struct target_ops) <to_attach>: Add comment. Remove
TARGET_DEFAULT_FUNC.
<to_create_inferior>: Add comment.
<to_can_async_p, to_is_async_p, to_supports_non_stop>: Use
TARGET_DEFAULT_RETURN.
<to_can_async_p, to_supports_non_stop, to_can_run>: Add comments.
(find_attach_target, find_run_target): Declare.
(target_create_inferior): Remove.
(target_has_execution_1): Update comment.
(target_supports_non_stop): Remove.
* target-delegates.c: Rebuild.
2014-03-12 Tom Tromey <tromey@redhat.com>
* gdb.base/corefile.exp (corefile_test_run, corefile_test_attach):
New procs. Add target-async tests.
* gdb.reverse/break-precsave.exp (precsave_tests): New proc.
Add target-async tests.
2014-02-28 17:47:34 +01:00
|
|
|
|
/* If a target on the current stack can attach, use it. */
|
|
|
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
|
|
|
|
{
|
|
|
|
|
if (t->to_create_inferior != NULL)
|
|
|
|
|
break;
|
|
|
|
|
}
|
2010-05-17 03:15:20 +02:00
|
|
|
|
|
fix regressions with target-async
A patch in the target cleanup series caused a regression when using
record with target-async. Version 4 of the patch is here:
https://sourceware.org/ml/gdb-patches/2014-03/msg00159.html
The immediate problem is that record supplies to_can_async_p and
to_is_async_p methods, but does not supply a to_async method. So,
when target-async is set, record claims to support async -- but if the
underlying target does not support async, then the to_async method
call will end up in that method's default implementation, namely
tcomplain.
This worked previously because the record target used to provide a
to_async method; one that (erroneously, only at push time) checked the
other members of the target stack, and then simply dropped to_async
calls in the "does not implement async" case.
My first thought was to simply drop tcomplain as the default for
to_async. This works, but Pedro pointed out that the only reason
record has to supply to_can_async_p and to_is_async_p is that these
default to using the find_default_run_target machinery -- and these
defaults are only needed by "run" and "attach".
So, a nicer solution presents itself: change run and attach to
explicitly call into the default run target when needed; and change
to_is_async_p and to_can_async_p to default to "return 0". This makes
the target stack simpler to use and lets us remove the method
implementations from record. This is also in harmony with other plans
for the target stack; namely trying to reduce the impact of
find_default_run_target. This approach makes it clear that
find_default_is_async_p is not needed -- it is asking whether a target
that may not even be pushed is actually async, which seems like a
nonsensical question.
While an improvement, this approach proved to introduce the same bug
when using the core target. Looking a bit deeper, the issue is that
code in "attach" and "run" may need to use either the current target
stack or the default run target -- but different calls into the target
API in those functions could wind up querying different targets.
This new patch makes the target to use more explicit in "run" and
"attach". Then these commands explicitly make the needed calls
against that target. This ensures that a single target is used for
all relevant operations. This lets us remove a couple find_default_*
functions from various targets, including the dummy target. I think
this is a decent understandability improvement.
One issue I see with this patch is that the new calls in "run" and
"attach" are not very much like the rest of the target API. I think
fundamentally this is due to bad factoring in the target API, which
may need to be fixed for multi-target. Tackling that seemed ambitious
for a regression fix.
While working on this I noticed that there don't seem to be any test
cases that involve both target-async and record, so this patch changes
break-precsave.exp to add some. It also changes corefile.exp to add
some target-async tests; these pass with current trunk and with this
patch applied, but fail with the v1 patch.
This patch differs from v4 in that it moves initialization of
to_can_async_p and to_supports_non_stop into inf-child, adds some
assertions to complete_target_initialization, and adds some comments
to target.h.
Built and regtested on x86-64 Fedora 20.
2014-03-12 Tom Tromey <tromey@redhat.com>
* inf-child.c (return_zero): New function.
(inf_child_target): Set to_can_async_p, to_supports_non_stop.
* aix-thread.c (aix_thread_inferior_created): New function.
(aix_thread_attach): Remove.
(init_aix_thread_ops): Don't set to_attach.
(_initialize_aix_thread): Register inferior_created observer.
* corelow.c (init_core_ops): Don't set to_attach or
to_create_inferior.
* exec.c (init_exec_ops): Don't set to_attach or
to_create_inferior.
* infcmd.c (run_command_1): Use find_run_target. Make direct
target calls.
(attach_command): Use find_attach_target. Make direct target
calls.
* record-btrace.c (init_record_btrace_ops): Don't set
to_create_inferior.
* record-full.c (record_full_can_async_p, record_full_is_async_p):
Remove.
(init_record_full_ops, init_record_full_core_ops): Update. Don't
set to_create_inferior.
* target.c (complete_target_initialization): Add assertion.
(target_create_inferior): Remove.
(find_default_attach, find_default_create_inferior): Remove.
(find_attach_target, find_run_target): New functions.
(find_default_is_async_p, find_default_can_async_p)
(target_supports_non_stop, target_attach): Remove.
(init_dummy_target): Don't set to_create_inferior or
to_supports_non_stop.
* target.h (struct target_ops) <to_attach>: Add comment. Remove
TARGET_DEFAULT_FUNC.
<to_create_inferior>: Add comment.
<to_can_async_p, to_is_async_p, to_supports_non_stop>: Use
TARGET_DEFAULT_RETURN.
<to_can_async_p, to_supports_non_stop, to_can_run>: Add comments.
(find_attach_target, find_run_target): Declare.
(target_create_inferior): Remove.
(target_has_execution_1): Update comment.
(target_supports_non_stop): Remove.
* target-delegates.c: Rebuild.
2014-03-12 Tom Tromey <tromey@redhat.com>
* gdb.base/corefile.exp (corefile_test_run, corefile_test_attach):
New procs. Add target-async tests.
* gdb.reverse/break-precsave.exp (precsave_tests): New proc.
Add target-async tests.
2014-02-28 17:47:34 +01:00
|
|
|
|
/* Otherwise, use the default run target. */
|
|
|
|
|
if (t == NULL)
|
|
|
|
|
t = find_default_run_target ("run");
|
2008-08-19 15:22:14 +02:00
|
|
|
|
|
fix regressions with target-async
A patch in the target cleanup series caused a regression when using
record with target-async. Version 4 of the patch is here:
https://sourceware.org/ml/gdb-patches/2014-03/msg00159.html
The immediate problem is that record supplies to_can_async_p and
to_is_async_p methods, but does not supply a to_async method. So,
when target-async is set, record claims to support async -- but if the
underlying target does not support async, then the to_async method
call will end up in that method's default implementation, namely
tcomplain.
This worked previously because the record target used to provide a
to_async method; one that (erroneously, only at push time) checked the
other members of the target stack, and then simply dropped to_async
calls in the "does not implement async" case.
My first thought was to simply drop tcomplain as the default for
to_async. This works, but Pedro pointed out that the only reason
record has to supply to_can_async_p and to_is_async_p is that these
default to using the find_default_run_target machinery -- and these
defaults are only needed by "run" and "attach".
So, a nicer solution presents itself: change run and attach to
explicitly call into the default run target when needed; and change
to_is_async_p and to_can_async_p to default to "return 0". This makes
the target stack simpler to use and lets us remove the method
implementations from record. This is also in harmony with other plans
for the target stack; namely trying to reduce the impact of
find_default_run_target. This approach makes it clear that
find_default_is_async_p is not needed -- it is asking whether a target
that may not even be pushed is actually async, which seems like a
nonsensical question.
While an improvement, this approach proved to introduce the same bug
when using the core target. Looking a bit deeper, the issue is that
code in "attach" and "run" may need to use either the current target
stack or the default run target -- but different calls into the target
API in those functions could wind up querying different targets.
This new patch makes the target to use more explicit in "run" and
"attach". Then these commands explicitly make the needed calls
against that target. This ensures that a single target is used for
all relevant operations. This lets us remove a couple find_default_*
functions from various targets, including the dummy target. I think
this is a decent understandability improvement.
One issue I see with this patch is that the new calls in "run" and
"attach" are not very much like the rest of the target API. I think
fundamentally this is due to bad factoring in the target API, which
may need to be fixed for multi-target. Tackling that seemed ambitious
for a regression fix.
While working on this I noticed that there don't seem to be any test
cases that involve both target-async and record, so this patch changes
break-precsave.exp to add some. It also changes corefile.exp to add
some target-async tests; these pass with current trunk and with this
patch applied, but fail with the v1 patch.
This patch differs from v4 in that it moves initialization of
to_can_async_p and to_supports_non_stop into inf-child, adds some
assertions to complete_target_initialization, and adds some comments
to target.h.
Built and regtested on x86-64 Fedora 20.
2014-03-12 Tom Tromey <tromey@redhat.com>
* inf-child.c (return_zero): New function.
(inf_child_target): Set to_can_async_p, to_supports_non_stop.
* aix-thread.c (aix_thread_inferior_created): New function.
(aix_thread_attach): Remove.
(init_aix_thread_ops): Don't set to_attach.
(_initialize_aix_thread): Register inferior_created observer.
* corelow.c (init_core_ops): Don't set to_attach or
to_create_inferior.
* exec.c (init_exec_ops): Don't set to_attach or
to_create_inferior.
* infcmd.c (run_command_1): Use find_run_target. Make direct
target calls.
(attach_command): Use find_attach_target. Make direct target
calls.
* record-btrace.c (init_record_btrace_ops): Don't set
to_create_inferior.
* record-full.c (record_full_can_async_p, record_full_is_async_p):
Remove.
(init_record_full_ops, init_record_full_core_ops): Update. Don't
set to_create_inferior.
* target.c (complete_target_initialization): Add assertion.
(target_create_inferior): Remove.
(find_default_attach, find_default_create_inferior): Remove.
(find_attach_target, find_run_target): New functions.
(find_default_is_async_p, find_default_can_async_p)
(target_supports_non_stop, target_attach): Remove.
(init_dummy_target): Don't set to_create_inferior or
to_supports_non_stop.
* target.h (struct target_ops) <to_attach>: Add comment. Remove
TARGET_DEFAULT_FUNC.
<to_create_inferior>: Add comment.
<to_can_async_p, to_is_async_p, to_supports_non_stop>: Use
TARGET_DEFAULT_RETURN.
<to_can_async_p, to_supports_non_stop, to_can_run>: Add comments.
(find_attach_target, find_run_target): Declare.
(target_create_inferior): Remove.
(target_has_execution_1): Update comment.
(target_supports_non_stop): Remove.
* target-delegates.c: Rebuild.
2014-03-12 Tom Tromey <tromey@redhat.com>
* gdb.base/corefile.exp (corefile_test_run, corefile_test_attach):
New procs. Add target-async tests.
* gdb.reverse/break-precsave.exp (precsave_tests): New proc.
Add target-async tests.
2014-02-28 17:47:34 +01:00
|
|
|
|
return t;
|
2008-08-19 15:22:14 +02:00
|
|
|
|
}
|
|
|
|
|
|
2012-01-20 10:49:01 +01:00
|
|
|
|
/* Implement the "info proc" command. */
|
|
|
|
|
|
2012-12-14 16:30:38 +01:00
|
|
|
|
int
|
2014-06-06 21:38:16 +02:00
|
|
|
|
target_info_proc (const char *args, enum info_proc_what what)
|
2012-01-20 10:49:01 +01:00
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
|
|
|
|
/* If we're already connected to something that can get us OS
|
|
|
|
|
related data, use it. Otherwise, try using the native
|
|
|
|
|
target. */
|
|
|
|
|
if (current_target.to_stratum >= process_stratum)
|
|
|
|
|
t = current_target.beneath;
|
|
|
|
|
else
|
|
|
|
|
t = find_default_run_target (NULL);
|
|
|
|
|
|
|
|
|
|
for (; t != NULL; t = t->beneath)
|
|
|
|
|
{
|
|
|
|
|
if (t->to_info_proc != NULL)
|
|
|
|
|
{
|
|
|
|
|
t->to_info_proc (t, args, what);
|
|
|
|
|
|
|
|
|
|
if (targetdebug)
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
|
|
|
"target_info_proc (\"%s\", %d)\n", args, what);
|
|
|
|
|
|
2012-12-14 16:30:38 +01:00
|
|
|
|
return 1;
|
2012-01-20 10:49:01 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2012-12-14 16:30:38 +01:00
|
|
|
|
return 0;
|
2012-01-20 10:49:01 +01:00
|
|
|
|
}
|
|
|
|
|
|
2011-10-07 14:06:48 +02:00
|
|
|
|
static int
|
2013-12-18 05:37:32 +01:00
|
|
|
|
find_default_supports_disable_randomization (struct target_ops *self)
|
2011-10-07 14:06:48 +02:00
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
|
|
|
|
t = find_default_run_target (NULL);
|
|
|
|
|
if (t && t->to_supports_disable_randomization)
|
2013-12-18 05:37:32 +01:00
|
|
|
|
return (t->to_supports_disable_randomization) (t);
|
2011-10-07 14:06:48 +02:00
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
target_supports_disable_randomization (void)
|
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
|
|
|
|
for (t = ¤t_target; t != NULL; t = t->beneath)
|
|
|
|
|
if (t->to_supports_disable_randomization)
|
2013-12-18 05:37:32 +01:00
|
|
|
|
return t->to_supports_disable_randomization (t);
|
2011-10-07 14:06:48 +02:00
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
2008-08-19 15:22:14 +02:00
|
|
|
|
|
2008-12-02 08:57:38 +01:00
|
|
|
|
char *
|
|
|
|
|
target_get_osdata (const char *type)
|
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
2009-02-06 03:08:48 +01:00
|
|
|
|
/* If we're already connected to something that can get us OS
|
|
|
|
|
related data, use it. Otherwise, try using the native
|
|
|
|
|
target. */
|
|
|
|
|
if (current_target.to_stratum >= process_stratum)
|
2009-02-06 02:23:00 +01:00
|
|
|
|
t = current_target.beneath;
|
2009-02-06 03:08:48 +01:00
|
|
|
|
else
|
|
|
|
|
t = find_default_run_target ("get OS data");
|
2008-12-02 08:57:38 +01:00
|
|
|
|
|
|
|
|
|
if (!t)
|
|
|
|
|
return NULL;
|
|
|
|
|
|
2009-02-06 02:23:00 +01:00
|
|
|
|
return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type);
|
2008-12-02 08:57:38 +01:00
|
|
|
|
}
|
|
|
|
|
|
2014-02-21 18:33:42 +01:00
|
|
|
|
static struct address_space *
|
|
|
|
|
default_thread_address_space (struct target_ops *self, ptid_t ptid)
|
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
Add base multi-executable/process support to GDB.
gdb/
* Makefile.in (SFILES): Add progspace.c.
(COMMON_OBS): Add progspace.o.
* progspace.h: New.
* progspace.c: New.
* breakpoint.h (struct bp_target_info) <placed_address_space>: New
field.
(struct bp_location) <pspace>: New field.
(struct breakpoint) <pspace>: New field.
(bpstat_stop_status, breakpoint_here_p)
(moribund_breakpoint_here_p, breakpoint_inserted_here_p)
(regular_breakpoint_inserted_here_p)
(software_breakpoint_inserted_here_p, breakpoint_thread_match)
(set_default_breakpoint): Adjust prototypes.
(remove_breakpoints_pid, breakpoint_program_space_exit): Declare.
(insert_single_step_breakpoint, deprecated_insert_raw_breakpoint):
Adjust prototypes.
* breakpoint.c (executing_startup): Delete.
(default_breakpoint_sspace): New.
(breakpoint_restore_shadows): Skip if the address space doesn't
match.
(update_watchpoint): Record the frame's program space in the
breakpoint location.
(insert_bp_location): Record the address space in target_info.
Adjust to pass the symbol space to solib_name_from_address.
(breakpoint_program_space_exit): New.
(insert_breakpoint_locations): Switch the symbol space and thread
when inserting breakpoints. Don't insert breakpoints in a vfork
parent waiting for vfork done if we're not attached to the vfork
child.
(remove_breakpoints_pid): New.
(reattach_breakpoints): Switch to a thread of PID. Ignore
breakpoints of other symbol spaces.
(create_internal_breakpoint): Store the symbol space in the sal.
(create_longjmp_master_breakpoint): Iterate over all symbol
spaces.
(update_breakpoints_after_exec): Ignore breakpoints for other
symbol spaces.
(remove_breakpoint): Rename to ...
(remove_breakpoint_1): ... this. Pass the breakpoints symbol
space to solib_name_from_address.
(remove_breakpoint): New.
(mark_breakpoints_out): Ignore breakpoints from other symbol
spaces.
(breakpoint_init_inferior): Ditto.
(breakpoint_here_p): Add an address space argument and adjust to
use breakpoint_address_match.
(moribund_breakpoint_here_p): Ditto.
(regular_breakpoint_inserted_here_p): Ditto.
(breakpoint_inserted_here_p): Ditto.
(software_breakpoint_inserted_here_p): Ditto.
(breakpoint_thread_match): Ditto.
(bpstat_check_location): Ditto.
(bpstat_stop_status): Ditto.
(print_breakpoint_location): If there's a location to print,
switch the current symbol space.
(print_one_breakpoint_location): Add `allflag' argument.
(print_one_breakpoint): Ditto. Adjust.
(do_captured_breakpoint_query): Adjust.
(breakpoint_1): Adjust.
(breakpoint_has_pc): Also match the symbol space.
(describe_other_breakpoints): Add a symbol space argument and
adjust.
(set_default_breakpoint): Add a symbol space argument. Set
default_breakpoint_sspace.
(breakpoint_address_match): New.
(check_duplicates_for): Add an address space argument, and adjust.
(set_raw_breakpoint): Record the symbol space in the location and
in the breakpoint.
(set_longjmp_breakpoint): Skip longjmp master breakpoints from
other symbol spaces.
(remove_thread_event_breakpoints, remove_solib_event_breakpoints)
(disable_breakpoints_in_shlibs): Skip breakpoints from other
symbol spaces.
(disable_breakpoints_in_unloaded_shlib): Match symbol spaces.
(create_catchpoint): Set the symbol space in the sal.
(disable_breakpoints_before_startup): Skip breakpoints from other
symbol spaces. Set executing_startup in the current symbol space.
(enable_breakpoints_after_startup): Clear executing_startup in the
current symbol space. Skip breakpoints from other symbol spaces.
(clone_momentary_breakpoint): Also copy the symbol space.
(add_location_to_breakpoint): Set the location's symbol space.
(bp_loc_is_permanent): Switch thread and symbol space.
(create_breakpoint): Adjust.
(expand_line_sal_maybe): Expand comment to mention symbol spaces.
Switch thread and symbol space when reading memory.
(parse_breakpoint_sals): Set the symbol space in the sal.
(break_command_really): Ditto.
(skip_prologue_sal): Switch and space.
(resolve_sal_pc): Ditto.
(watch_command_1): Record the symbol space in the sal.
(create_ada_exception_breakpoint): Adjust.
(clear_command): Adjust. Match symbol spaces.
(update_global_location_list): Use breakpoint_address_match.
(breakpoint_re_set_one): Switch thread and space.
(breakpoint_re_set): Save symbol space.
(breakpoint_re_set_thread): Also reset the symbol space.
(deprecated_insert_raw_breakpoint): Add an address space argument.
Adjust.
(insert_single_step_breakpoint): Ditto.
(single_step_breakpoint_inserted_here_p): Ditto.
(clear_syscall_counts): New.
(_initialize_breakpoint): Install it as inferior_exit observer.
* exec.h: Include "progspace.h".
(exec_bfd, exec_bfd_mtime): New defines.
(exec_close): Declare.
* exec.c: Include "gdbthread.h" and "progspace.h".
(exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete.
(using_exec_ops): New.
(exec_close_1): Rename to exec_close, and make public.
(exec_close): Rename to exec_close_1, and adjust all callers. Add
description. Remove target sections and close executables from
all program spaces.
(exec_file_attach): Add comment.
(add_target_sections): Check on `using_exec_ops' to check if the
target should be pushed.
(remove_target_sections): Only unpush the target if there are no
more target sections in any symbol space.
* gdbcore.h: Include "exec.h".
(exec_bfd, exec_bfd_mtime): Remove declarations.
* frame.h (get_frame_program_space, get_frame_address_space)
(frame_unwind_program_space): Declare.
* frame.c (struct frame_info) <pspace, aspace>: New fields.
(create_sentinel_frame): Add program space argument. Set the
pspace and aspace fields of the frame object.
(get_current_frame, create_new_frame): Adjust.
(get_frame_program_space): New.
(frame_unwind_program_space): New.
(get_frame_address_space): New.
* stack.c (print_frame_info): Adjust.
(print_frame): Use the frame's program space.
* gdbthread.h (any_live_thread_of_process): Declare.
* thread.c (any_live_thread_of_process): New.
(switch_to_thread): Switch the program space as well.
(restore_selected_frame): Don't warn if trying to restore frame
level 0.
* inferior.h: Include "progspace.h".
(detach_fork): Declare.
(struct inferior) <removable, aspace, pspace>
<vfork_parent, vfork_child, pending_detach>
<waiting_for_vfork_done>: New fields.
<terminal_info>: Remove field.
<data, num_data>: New fields.
(register_inferior_data, register_inferior_data_with_cleanup)
(clear_inferior_data, set_inferior_data, inferior_data): Declare.
(exit_inferior, exit_inferior_silent, exit_inferior_num_silent)
(inferior_appeared): Declare.
(find_inferior_pid): Typo.
(find_inferior_id, find_inferior_for_program_space): Declare.
(set_current_inferior, save_current_inferior, prune_inferiors)
(number_of_inferiors): Declare.
(inferior_list): Declare.
* inferior.c: Include "gdbcore.h" and "symfile.h".
(inferior_list): Make public.
(delete_inferior_1): Always delete thread silently.
(find_inferior_id): Make public.
(current_inferior_): New.
(current_inferior): Use it.
(set_current_inferior): New.
(restore_inferior): New.
(save_current_inferior): New.
(free_inferior): Free the per-inferior data.
(add_inferior_silent): Allocate per-inferior data.
Call inferior_appeared.
(delete_threads_of_inferior): New.
(delete_inferior_1): Adjust interface to take an inferior pointer.
(delete_inferior): Adjust.
(delete_inferior_silent): Adjust.
(exit_inferior_1): New.
(exit_inferior): New.
(exit_inferior_silent): New.
(exit_inferior_num_silent): New.
(detach_inferior): Adjust.
(inferior_appeared): New.
(discard_all_inferiors): Adjust.
(find_inferior_id): Make public. Assert pid is not zero.
(find_inferior_for_program_space): New.
(have_inferiors): Check if we have any inferior with pid not zero.
(have_live_inferiors): Go over all pushed targets looking for
process_stratum.
(prune_inferiors): New.
(number_of_inferiors): New.
(print_inferior): Add executable column. Print vfork parent/child
relationships.
(inferior_command): Adjust to cope with not running inferiors.
(remove_inferior_command): New.
(add_inferior_command): New.
(clone_inferior_command): New.
(struct inferior_data): New.
(struct inferior_data_registration): New.
(struct inferior_data_registry): New.
(inferior_data_registry): New.
(register_inferior_data_with_cleanup): New.
(register_inferior_data): New.
(inferior_alloc_data): New.
(inferior_free_data): New.
(clear_inferior_data): New.
(set_inferior_data): New.
(inferior_data): New.
(initialize_inferiors): New.
(_initialize_inferiors): Register "add-inferior",
"remove-inferior" and "clone-inferior" commands.
* objfiles.h: Include "progspace.h".
(struct objfile) <pspace>: New field.
(symfile_objfile, object_files): Don't declare.
(ALL_PSPACE_OBJFILES): New.
(ALL_PSPACE_OBJFILES_SAFE): New.
(ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust.
(ALL_PSPACE_SYMTABS): New.
(ALL_PRIMARY_SYMTABS): Adjust.
(ALL_PSPACE_PRIMARY_SYMTABS): New.
(ALL_PSYMTABS): Adjust.
(ALL_PSPACE_PSYMTABS): New.
* objfiles.c (object_files, symfile_objfile): Delete.
(struct objfile_sspace_info): New.
(objfiles_pspace_data): New.
(objfiles_pspace_data_cleanup): New.
(get_objfile_pspace_data): New.
(objfiles_changed_p): Delete.
(allocate_objfile): Set the objfile's program space. Adjust to
reference objfiles_changed_p in pspace data.
(free_objfile): Adjust to reference objfiles_changed_p in pspace
data.
(objfile_relocate): Ditto.
(update_section_map): Add pspace argument. Adjust to iterate over
objfiles in the passed in pspace.
(find_pc_section): Delete sections and num_sections statics.
Adjust to refer to program space's objfiles_changed_p. Adjust to
refer to sections and num_sections store in the objfile's pspace
data.
(objfiles_changed): Adjust to reference objfiles_changed_p in
pspace data.
(_initialize_objfiles): New.
* linespec.c (decode_all_digits, decode_dollar): Set the sal's
program space.
* source.c (current_source_pspace): New.
(get_current_source_symtab_and_line): Set the sal's program space.
(set_current_source_symtab_and_line): Set current_source_pspace.
(select_source_symtab): Ditto. Use ALL_OBJFILES.
(forget_cached_source_info): Iterate over all program spaces.
* symfile.c (clear_symtab_users): Adjust.
* symmisc.c (print_symbol_bcache_statistics): Iterate over all
program spaces.
(print_objfile_statistics): Ditto.
(maintenance_print_msymbols): Ditto.
(maintenance_print_objfiles): Ditto.
(maintenance_info_symtabs): Ditto.
(maintenance_info_psymtabs): Ditto.
* symtab.h (SYMTAB_PSPACE): New.
(struct symtab_and_line) <pspace>: New field.
* symtab.c (init_sal): Clear the sal's program space.
(find_pc_sect_symtab): Set the sal's program space. Switch thread
and space.
(append_expanded_sal): Add program space argument. Iterate over
all program spaces.
(expand_line_sal): Iterate over all program spaces. Switch
program space.
* target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New.
(struct target_ops) <to_thread_address_space>: New field.
(target_thread_address_space): Define.
* target.c (target_detach): Only remove breakpoints from the
inferior we're detaching.
(target_thread_address_space): New.
* defs.h (initialize_progspace): Declare.
* top.c (gdb_init): Call it.
* solist.h (struct so_list) <sspace>: New field.
* solib.h (struct program_space): Forward declare.
(solib_name_from_address): Adjust prototype.
* solib.c (so_list_head): Replace with a macro referencing the
program space.
(update_solib_list): Set the so's program space.
(solib_name_from_address): Add a program space argument and adjust.
* solib-svr4.c (struct svr4_info) <pid>: Delete field.
<interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low>
<interp_plt_sect_high>: New fields.
(svr4_info_p, svr4_info): Delete.
(solib_svr4_sspace_data): New.
(get_svr4_info): Rewrite.
(svr4_sspace_data_cleanup): New.
(open_symbol_file_object): Adjust.
(svr4_default_sos): Adjust.
(svr4_fetch_objfile_link_map): Adjust.
(interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low)
(interp_plt_sect_high): Delete.
(svr4_in_dynsym_resolve_code): Adjust.
(enable_break): Adjust.
(svr4_clear_solib): Revert bit that removed the svr4_info here,
and reinstate clearing debug_base, debug_loader_offset_p,
debug_loader_offset and debug_loader_name.
(_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't
install an inferior_exit observer anymore.
* printcmd.c (struct display) <pspace>: New field.
(display_command): Set the display's sspace.
(do_one_display): Match the display's sspace.
(display_uses_solib_p): Ditto.
* linux-fork.c (detach_fork): Moved to infrun.c.
(_initialize_linux_fork): Moved "detach-on-fork" command to
infrun.c.
* infrun.c (detach_fork): Moved from linux-fork.c.
(proceed_after_vfork_done): New.
(handle_vfork_child_exec_or_exit): New.
(follow_exec_mode_replace, follow_exec_mode_keep)
(follow_exec_mode_names, follow_exec_mode_string)
(show_follow_exec_mode_string): New.
(follow_exec): New. Reinstate the mark_breakpoints_out call.
Remove shared libraries before attaching new executable. If user
wants to keep the inferior, keep it.
(displaced_step_fixup): Adjust to pass an address space to the
breakpoints module.
(resume): Ditto.
(clear_proceed_status): In all-stop mode, always clear the proceed
status of all threads.
(prepare_to_proceed): Adjust to pass an address space to the
breakpoints module.
(proceed): Ditto.
(adjust_pc_after_break): Ditto.
(handle_inferior_event): When handling a process exit, switch the
program space to the inferior's that had exited. Call
handle_vfork_child_exec_or_exit. Adjust to pass an address space
to the breakpoints module. In non-stop mode, when following a
fork and detach-fork is off, also resume the other branch. Handle
TARGET_WAITKIND_VFORK_DONE. Set the program space in sals.
(normal_stop): Prune inferiors.
(_initialize_infrun): Install the new "follow-exec-mode" command.
"detach-on-fork" moved here.
* regcache.h (get_regcache_aspace): Declare.
* regcache.c (struct regcache) <aspace>: New field.
(regcache_xmalloc): Clear the aspace.
(get_regcache_aspace): New.
(regcache_cpy): Copy the aspace field.
(regcache_cpy_no_passthrough): Ditto.
(get_thread_regcache): Fetch the thread's address space from the
target, and store it in the regcache.
* infcall.c (call_function_by_hand): Set the sal's pspace.
* arch-utils.c (default_has_shared_address_space): New.
* arch-utils.h (default_has_shared_address_space): Declare.
* gdbarch.sh (has_shared_address_space): New.
* gdbarch.h, gdbarch.c: Regenerate.
* linux-tdep.c: Include auxv.h, target.h, elf/common.h.
(linux_has_shared_address_space): New.
(_initialize_linux_tdep): Declare.
* arm-tdep.c (arm_software_single_step): Pass the frame's address
space to insert_single_step_breakpoint.
* arm-linux-tdep.c (arm_linux_software_single_step): Pass the
frame's pspace to breakpoint functions.
* cris-tdep.c (crisv32_single_step_through_delay): Ditto.
(cris_software_single_step): Ditto.
* mips-tdep.c (deal_with_atomic_sequence): Add frame argument.
Pass the frame's pspace to breakpoint functions.
(mips_software_single_step): Adjust.
(mips_single_step_through_delay): Adjust.
* rs6000-aix-tdep.c (rs6000_software_single_step): Adjust.
* rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust.
* solib-irix.c (enable_break): Adjust to pass the current frame's
address space to breakpoint functions.
* sparc-tdep.c (sparc_software_single_step): Ditto.
* spu-tdep.c (spu_software_single_step): Ditto.
* alpha-tdep.c (alpha_software_single_step): Ditto.
* record.c (record_wait): Adjust to pass an address space to the
breakpoints module.
* fork-child.c (fork_inferior): Set the new inferior's program and
address spaces.
* inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program
and address spaces.
(inf_ptrace_attach): Set the inferior's program and address spaces.
* linux-nat.c: Include "solib.h".
(linux_child_follow_fork): Manage parent and child's program and
address spaces. Clone the parent's program space if necessary.
Don't wait for the vfork to be done here. Refuse to resume if
following the vfork parent while leaving the child stopped.
(resume_callback): Don't resume a vfork parent.
(linux_nat_resume): Also check for pending events in the
lp->waitstatus field.
(linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE
events to the core.
(stop_wait_callback): Don't wait for SIGSTOP on vfork parents.
(cancel_breakpoint): Adjust.
* linux-thread-db.c (thread_db_wait): Don't remove thread event
breakpoints here.
(thread_db_mourn_inferior): Don't mark breakpoints out here.
Remove thread event breakpoints after mourning.
* corelow.c: Include progspace.h.
(core_open): Set the inferior's program and address spaces.
* remote.c (remote_add_inferior): Set the new inferior's program
and address spaces.
(remote_start_remote): Update address spaces.
(extended_remote_create_inferior_1): Don't init the thread list if
we already debugging other inferiors.
* darwin-nat.c (darwin_attach): Set the new inferior's program and
address spaces.
* gnu-nat.c (gnu_attach): Ditto.
* go32-nat.c (go32_create_inferior): Ditto.
* inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto.
* monitor.c (monitor_open): Ditto.
* nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto.
* procfs.c (do_attach): Ditto.
* windows-nat.c (do_initial_windows_stuff): Ditto.
* inflow.c (inferior_process_group)
(terminal_init_inferior_with_pgrp, terminal_inferior,
(terminal_ours_1, inflow_inferior_exit, copy_terminal_info)
(child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust
to use per-inferior data instead of inferior->terminal_info.
(inflow_inferior_data): New.
(inflow_new_inferior): Delete.
(inflow_inferior_data_cleanup): New.
(get_inflow_inferior_data): New.
* mi/mi-interp.c (mi_new_inferior): Rename to...
(mi_inferior_appeared): ... this.
(mi_interpreter_init): Adjust.
* tui/tui-disasm.c: Include "progspace.h".
(tui_set_disassem_content): Pass an address space to
breakpoint_here_p.
* NEWS: Mention multi-program debugging support. Mention new
commands "add-inferior", "clone-inferior", "remove-inferior",
"maint info program-spaces", and new option "set
follow-exec-mode".
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/doc/
* observer.texi (new_inferior): Rename to...
(inferior_appeared): ... this.
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/testsuite/
* gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork".
* gdb.base/foll-exec.exp: Adjust to expect a process id before
"Executing new program".
* gdb.base/foll-fork.exp: Adjust to spell out "follow-fork".
* gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being
left listed after having been killed.
* gdb.base/attach.exp: Adjust to spell out "symbol-file".
* gdb.base/maint.exp: Adjust test.
* Makefile.in (ALL_SUBDIRS): Add gdb.multi.
* gdb.multi/Makefile.in: New.
* gdb.multi/base.exp: New.
* gdb.multi/goodbye.c: New.
* gdb.multi/hangout.c: New.
* gdb.multi/hello.c: New.
* gdb.multi/bkpt-multi-exec.c: New.
* gdb.multi/bkpt-multi-exec.exp: New.
* gdb.multi/crashme.c: New.
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/doc/
* gdb.texinfo (Inferiors): Rename node to ...
(Inferiors and Programs): ... this. Mention running multiple
programs in the same debug session.
<info inferiors>: Mention the new 'Executable' column if "info
inferiors". Update examples. Document the "add-inferior",
"clone-inferior", "remove-inferior" and "maint info
program-spaces" commands.
(Process): Rename node to...
(Forks): ... this. Document "set|show follow-exec-mode".
2009-10-19 11:51:43 +02:00
|
|
|
|
{
|
|
|
|
|
struct inferior *inf;
|
|
|
|
|
|
|
|
|
|
/* Fall-back to the "main" address space of the inferior. */
|
2014-12-15 18:00:55 +01:00
|
|
|
|
inf = find_inferior_ptid (ptid);
|
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
Add base multi-executable/process support to GDB.
gdb/
* Makefile.in (SFILES): Add progspace.c.
(COMMON_OBS): Add progspace.o.
* progspace.h: New.
* progspace.c: New.
* breakpoint.h (struct bp_target_info) <placed_address_space>: New
field.
(struct bp_location) <pspace>: New field.
(struct breakpoint) <pspace>: New field.
(bpstat_stop_status, breakpoint_here_p)
(moribund_breakpoint_here_p, breakpoint_inserted_here_p)
(regular_breakpoint_inserted_here_p)
(software_breakpoint_inserted_here_p, breakpoint_thread_match)
(set_default_breakpoint): Adjust prototypes.
(remove_breakpoints_pid, breakpoint_program_space_exit): Declare.
(insert_single_step_breakpoint, deprecated_insert_raw_breakpoint):
Adjust prototypes.
* breakpoint.c (executing_startup): Delete.
(default_breakpoint_sspace): New.
(breakpoint_restore_shadows): Skip if the address space doesn't
match.
(update_watchpoint): Record the frame's program space in the
breakpoint location.
(insert_bp_location): Record the address space in target_info.
Adjust to pass the symbol space to solib_name_from_address.
(breakpoint_program_space_exit): New.
(insert_breakpoint_locations): Switch the symbol space and thread
when inserting breakpoints. Don't insert breakpoints in a vfork
parent waiting for vfork done if we're not attached to the vfork
child.
(remove_breakpoints_pid): New.
(reattach_breakpoints): Switch to a thread of PID. Ignore
breakpoints of other symbol spaces.
(create_internal_breakpoint): Store the symbol space in the sal.
(create_longjmp_master_breakpoint): Iterate over all symbol
spaces.
(update_breakpoints_after_exec): Ignore breakpoints for other
symbol spaces.
(remove_breakpoint): Rename to ...
(remove_breakpoint_1): ... this. Pass the breakpoints symbol
space to solib_name_from_address.
(remove_breakpoint): New.
(mark_breakpoints_out): Ignore breakpoints from other symbol
spaces.
(breakpoint_init_inferior): Ditto.
(breakpoint_here_p): Add an address space argument and adjust to
use breakpoint_address_match.
(moribund_breakpoint_here_p): Ditto.
(regular_breakpoint_inserted_here_p): Ditto.
(breakpoint_inserted_here_p): Ditto.
(software_breakpoint_inserted_here_p): Ditto.
(breakpoint_thread_match): Ditto.
(bpstat_check_location): Ditto.
(bpstat_stop_status): Ditto.
(print_breakpoint_location): If there's a location to print,
switch the current symbol space.
(print_one_breakpoint_location): Add `allflag' argument.
(print_one_breakpoint): Ditto. Adjust.
(do_captured_breakpoint_query): Adjust.
(breakpoint_1): Adjust.
(breakpoint_has_pc): Also match the symbol space.
(describe_other_breakpoints): Add a symbol space argument and
adjust.
(set_default_breakpoint): Add a symbol space argument. Set
default_breakpoint_sspace.
(breakpoint_address_match): New.
(check_duplicates_for): Add an address space argument, and adjust.
(set_raw_breakpoint): Record the symbol space in the location and
in the breakpoint.
(set_longjmp_breakpoint): Skip longjmp master breakpoints from
other symbol spaces.
(remove_thread_event_breakpoints, remove_solib_event_breakpoints)
(disable_breakpoints_in_shlibs): Skip breakpoints from other
symbol spaces.
(disable_breakpoints_in_unloaded_shlib): Match symbol spaces.
(create_catchpoint): Set the symbol space in the sal.
(disable_breakpoints_before_startup): Skip breakpoints from other
symbol spaces. Set executing_startup in the current symbol space.
(enable_breakpoints_after_startup): Clear executing_startup in the
current symbol space. Skip breakpoints from other symbol spaces.
(clone_momentary_breakpoint): Also copy the symbol space.
(add_location_to_breakpoint): Set the location's symbol space.
(bp_loc_is_permanent): Switch thread and symbol space.
(create_breakpoint): Adjust.
(expand_line_sal_maybe): Expand comment to mention symbol spaces.
Switch thread and symbol space when reading memory.
(parse_breakpoint_sals): Set the symbol space in the sal.
(break_command_really): Ditto.
(skip_prologue_sal): Switch and space.
(resolve_sal_pc): Ditto.
(watch_command_1): Record the symbol space in the sal.
(create_ada_exception_breakpoint): Adjust.
(clear_command): Adjust. Match symbol spaces.
(update_global_location_list): Use breakpoint_address_match.
(breakpoint_re_set_one): Switch thread and space.
(breakpoint_re_set): Save symbol space.
(breakpoint_re_set_thread): Also reset the symbol space.
(deprecated_insert_raw_breakpoint): Add an address space argument.
Adjust.
(insert_single_step_breakpoint): Ditto.
(single_step_breakpoint_inserted_here_p): Ditto.
(clear_syscall_counts): New.
(_initialize_breakpoint): Install it as inferior_exit observer.
* exec.h: Include "progspace.h".
(exec_bfd, exec_bfd_mtime): New defines.
(exec_close): Declare.
* exec.c: Include "gdbthread.h" and "progspace.h".
(exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete.
(using_exec_ops): New.
(exec_close_1): Rename to exec_close, and make public.
(exec_close): Rename to exec_close_1, and adjust all callers. Add
description. Remove target sections and close executables from
all program spaces.
(exec_file_attach): Add comment.
(add_target_sections): Check on `using_exec_ops' to check if the
target should be pushed.
(remove_target_sections): Only unpush the target if there are no
more target sections in any symbol space.
* gdbcore.h: Include "exec.h".
(exec_bfd, exec_bfd_mtime): Remove declarations.
* frame.h (get_frame_program_space, get_frame_address_space)
(frame_unwind_program_space): Declare.
* frame.c (struct frame_info) <pspace, aspace>: New fields.
(create_sentinel_frame): Add program space argument. Set the
pspace and aspace fields of the frame object.
(get_current_frame, create_new_frame): Adjust.
(get_frame_program_space): New.
(frame_unwind_program_space): New.
(get_frame_address_space): New.
* stack.c (print_frame_info): Adjust.
(print_frame): Use the frame's program space.
* gdbthread.h (any_live_thread_of_process): Declare.
* thread.c (any_live_thread_of_process): New.
(switch_to_thread): Switch the program space as well.
(restore_selected_frame): Don't warn if trying to restore frame
level 0.
* inferior.h: Include "progspace.h".
(detach_fork): Declare.
(struct inferior) <removable, aspace, pspace>
<vfork_parent, vfork_child, pending_detach>
<waiting_for_vfork_done>: New fields.
<terminal_info>: Remove field.
<data, num_data>: New fields.
(register_inferior_data, register_inferior_data_with_cleanup)
(clear_inferior_data, set_inferior_data, inferior_data): Declare.
(exit_inferior, exit_inferior_silent, exit_inferior_num_silent)
(inferior_appeared): Declare.
(find_inferior_pid): Typo.
(find_inferior_id, find_inferior_for_program_space): Declare.
(set_current_inferior, save_current_inferior, prune_inferiors)
(number_of_inferiors): Declare.
(inferior_list): Declare.
* inferior.c: Include "gdbcore.h" and "symfile.h".
(inferior_list): Make public.
(delete_inferior_1): Always delete thread silently.
(find_inferior_id): Make public.
(current_inferior_): New.
(current_inferior): Use it.
(set_current_inferior): New.
(restore_inferior): New.
(save_current_inferior): New.
(free_inferior): Free the per-inferior data.
(add_inferior_silent): Allocate per-inferior data.
Call inferior_appeared.
(delete_threads_of_inferior): New.
(delete_inferior_1): Adjust interface to take an inferior pointer.
(delete_inferior): Adjust.
(delete_inferior_silent): Adjust.
(exit_inferior_1): New.
(exit_inferior): New.
(exit_inferior_silent): New.
(exit_inferior_num_silent): New.
(detach_inferior): Adjust.
(inferior_appeared): New.
(discard_all_inferiors): Adjust.
(find_inferior_id): Make public. Assert pid is not zero.
(find_inferior_for_program_space): New.
(have_inferiors): Check if we have any inferior with pid not zero.
(have_live_inferiors): Go over all pushed targets looking for
process_stratum.
(prune_inferiors): New.
(number_of_inferiors): New.
(print_inferior): Add executable column. Print vfork parent/child
relationships.
(inferior_command): Adjust to cope with not running inferiors.
(remove_inferior_command): New.
(add_inferior_command): New.
(clone_inferior_command): New.
(struct inferior_data): New.
(struct inferior_data_registration): New.
(struct inferior_data_registry): New.
(inferior_data_registry): New.
(register_inferior_data_with_cleanup): New.
(register_inferior_data): New.
(inferior_alloc_data): New.
(inferior_free_data): New.
(clear_inferior_data): New.
(set_inferior_data): New.
(inferior_data): New.
(initialize_inferiors): New.
(_initialize_inferiors): Register "add-inferior",
"remove-inferior" and "clone-inferior" commands.
* objfiles.h: Include "progspace.h".
(struct objfile) <pspace>: New field.
(symfile_objfile, object_files): Don't declare.
(ALL_PSPACE_OBJFILES): New.
(ALL_PSPACE_OBJFILES_SAFE): New.
(ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust.
(ALL_PSPACE_SYMTABS): New.
(ALL_PRIMARY_SYMTABS): Adjust.
(ALL_PSPACE_PRIMARY_SYMTABS): New.
(ALL_PSYMTABS): Adjust.
(ALL_PSPACE_PSYMTABS): New.
* objfiles.c (object_files, symfile_objfile): Delete.
(struct objfile_sspace_info): New.
(objfiles_pspace_data): New.
(objfiles_pspace_data_cleanup): New.
(get_objfile_pspace_data): New.
(objfiles_changed_p): Delete.
(allocate_objfile): Set the objfile's program space. Adjust to
reference objfiles_changed_p in pspace data.
(free_objfile): Adjust to reference objfiles_changed_p in pspace
data.
(objfile_relocate): Ditto.
(update_section_map): Add pspace argument. Adjust to iterate over
objfiles in the passed in pspace.
(find_pc_section): Delete sections and num_sections statics.
Adjust to refer to program space's objfiles_changed_p. Adjust to
refer to sections and num_sections store in the objfile's pspace
data.
(objfiles_changed): Adjust to reference objfiles_changed_p in
pspace data.
(_initialize_objfiles): New.
* linespec.c (decode_all_digits, decode_dollar): Set the sal's
program space.
* source.c (current_source_pspace): New.
(get_current_source_symtab_and_line): Set the sal's program space.
(set_current_source_symtab_and_line): Set current_source_pspace.
(select_source_symtab): Ditto. Use ALL_OBJFILES.
(forget_cached_source_info): Iterate over all program spaces.
* symfile.c (clear_symtab_users): Adjust.
* symmisc.c (print_symbol_bcache_statistics): Iterate over all
program spaces.
(print_objfile_statistics): Ditto.
(maintenance_print_msymbols): Ditto.
(maintenance_print_objfiles): Ditto.
(maintenance_info_symtabs): Ditto.
(maintenance_info_psymtabs): Ditto.
* symtab.h (SYMTAB_PSPACE): New.
(struct symtab_and_line) <pspace>: New field.
* symtab.c (init_sal): Clear the sal's program space.
(find_pc_sect_symtab): Set the sal's program space. Switch thread
and space.
(append_expanded_sal): Add program space argument. Iterate over
all program spaces.
(expand_line_sal): Iterate over all program spaces. Switch
program space.
* target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New.
(struct target_ops) <to_thread_address_space>: New field.
(target_thread_address_space): Define.
* target.c (target_detach): Only remove breakpoints from the
inferior we're detaching.
(target_thread_address_space): New.
* defs.h (initialize_progspace): Declare.
* top.c (gdb_init): Call it.
* solist.h (struct so_list) <sspace>: New field.
* solib.h (struct program_space): Forward declare.
(solib_name_from_address): Adjust prototype.
* solib.c (so_list_head): Replace with a macro referencing the
program space.
(update_solib_list): Set the so's program space.
(solib_name_from_address): Add a program space argument and adjust.
* solib-svr4.c (struct svr4_info) <pid>: Delete field.
<interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low>
<interp_plt_sect_high>: New fields.
(svr4_info_p, svr4_info): Delete.
(solib_svr4_sspace_data): New.
(get_svr4_info): Rewrite.
(svr4_sspace_data_cleanup): New.
(open_symbol_file_object): Adjust.
(svr4_default_sos): Adjust.
(svr4_fetch_objfile_link_map): Adjust.
(interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low)
(interp_plt_sect_high): Delete.
(svr4_in_dynsym_resolve_code): Adjust.
(enable_break): Adjust.
(svr4_clear_solib): Revert bit that removed the svr4_info here,
and reinstate clearing debug_base, debug_loader_offset_p,
debug_loader_offset and debug_loader_name.
(_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't
install an inferior_exit observer anymore.
* printcmd.c (struct display) <pspace>: New field.
(display_command): Set the display's sspace.
(do_one_display): Match the display's sspace.
(display_uses_solib_p): Ditto.
* linux-fork.c (detach_fork): Moved to infrun.c.
(_initialize_linux_fork): Moved "detach-on-fork" command to
infrun.c.
* infrun.c (detach_fork): Moved from linux-fork.c.
(proceed_after_vfork_done): New.
(handle_vfork_child_exec_or_exit): New.
(follow_exec_mode_replace, follow_exec_mode_keep)
(follow_exec_mode_names, follow_exec_mode_string)
(show_follow_exec_mode_string): New.
(follow_exec): New. Reinstate the mark_breakpoints_out call.
Remove shared libraries before attaching new executable. If user
wants to keep the inferior, keep it.
(displaced_step_fixup): Adjust to pass an address space to the
breakpoints module.
(resume): Ditto.
(clear_proceed_status): In all-stop mode, always clear the proceed
status of all threads.
(prepare_to_proceed): Adjust to pass an address space to the
breakpoints module.
(proceed): Ditto.
(adjust_pc_after_break): Ditto.
(handle_inferior_event): When handling a process exit, switch the
program space to the inferior's that had exited. Call
handle_vfork_child_exec_or_exit. Adjust to pass an address space
to the breakpoints module. In non-stop mode, when following a
fork and detach-fork is off, also resume the other branch. Handle
TARGET_WAITKIND_VFORK_DONE. Set the program space in sals.
(normal_stop): Prune inferiors.
(_initialize_infrun): Install the new "follow-exec-mode" command.
"detach-on-fork" moved here.
* regcache.h (get_regcache_aspace): Declare.
* regcache.c (struct regcache) <aspace>: New field.
(regcache_xmalloc): Clear the aspace.
(get_regcache_aspace): New.
(regcache_cpy): Copy the aspace field.
(regcache_cpy_no_passthrough): Ditto.
(get_thread_regcache): Fetch the thread's address space from the
target, and store it in the regcache.
* infcall.c (call_function_by_hand): Set the sal's pspace.
* arch-utils.c (default_has_shared_address_space): New.
* arch-utils.h (default_has_shared_address_space): Declare.
* gdbarch.sh (has_shared_address_space): New.
* gdbarch.h, gdbarch.c: Regenerate.
* linux-tdep.c: Include auxv.h, target.h, elf/common.h.
(linux_has_shared_address_space): New.
(_initialize_linux_tdep): Declare.
* arm-tdep.c (arm_software_single_step): Pass the frame's address
space to insert_single_step_breakpoint.
* arm-linux-tdep.c (arm_linux_software_single_step): Pass the
frame's pspace to breakpoint functions.
* cris-tdep.c (crisv32_single_step_through_delay): Ditto.
(cris_software_single_step): Ditto.
* mips-tdep.c (deal_with_atomic_sequence): Add frame argument.
Pass the frame's pspace to breakpoint functions.
(mips_software_single_step): Adjust.
(mips_single_step_through_delay): Adjust.
* rs6000-aix-tdep.c (rs6000_software_single_step): Adjust.
* rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust.
* solib-irix.c (enable_break): Adjust to pass the current frame's
address space to breakpoint functions.
* sparc-tdep.c (sparc_software_single_step): Ditto.
* spu-tdep.c (spu_software_single_step): Ditto.
* alpha-tdep.c (alpha_software_single_step): Ditto.
* record.c (record_wait): Adjust to pass an address space to the
breakpoints module.
* fork-child.c (fork_inferior): Set the new inferior's program and
address spaces.
* inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program
and address spaces.
(inf_ptrace_attach): Set the inferior's program and address spaces.
* linux-nat.c: Include "solib.h".
(linux_child_follow_fork): Manage parent and child's program and
address spaces. Clone the parent's program space if necessary.
Don't wait for the vfork to be done here. Refuse to resume if
following the vfork parent while leaving the child stopped.
(resume_callback): Don't resume a vfork parent.
(linux_nat_resume): Also check for pending events in the
lp->waitstatus field.
(linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE
events to the core.
(stop_wait_callback): Don't wait for SIGSTOP on vfork parents.
(cancel_breakpoint): Adjust.
* linux-thread-db.c (thread_db_wait): Don't remove thread event
breakpoints here.
(thread_db_mourn_inferior): Don't mark breakpoints out here.
Remove thread event breakpoints after mourning.
* corelow.c: Include progspace.h.
(core_open): Set the inferior's program and address spaces.
* remote.c (remote_add_inferior): Set the new inferior's program
and address spaces.
(remote_start_remote): Update address spaces.
(extended_remote_create_inferior_1): Don't init the thread list if
we already debugging other inferiors.
* darwin-nat.c (darwin_attach): Set the new inferior's program and
address spaces.
* gnu-nat.c (gnu_attach): Ditto.
* go32-nat.c (go32_create_inferior): Ditto.
* inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto.
* monitor.c (monitor_open): Ditto.
* nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto.
* procfs.c (do_attach): Ditto.
* windows-nat.c (do_initial_windows_stuff): Ditto.
* inflow.c (inferior_process_group)
(terminal_init_inferior_with_pgrp, terminal_inferior,
(terminal_ours_1, inflow_inferior_exit, copy_terminal_info)
(child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust
to use per-inferior data instead of inferior->terminal_info.
(inflow_inferior_data): New.
(inflow_new_inferior): Delete.
(inflow_inferior_data_cleanup): New.
(get_inflow_inferior_data): New.
* mi/mi-interp.c (mi_new_inferior): Rename to...
(mi_inferior_appeared): ... this.
(mi_interpreter_init): Adjust.
* tui/tui-disasm.c: Include "progspace.h".
(tui_set_disassem_content): Pass an address space to
breakpoint_here_p.
* NEWS: Mention multi-program debugging support. Mention new
commands "add-inferior", "clone-inferior", "remove-inferior",
"maint info program-spaces", and new option "set
follow-exec-mode".
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/doc/
* observer.texi (new_inferior): Rename to...
(inferior_appeared): ... this.
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/testsuite/
* gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork".
* gdb.base/foll-exec.exp: Adjust to expect a process id before
"Executing new program".
* gdb.base/foll-fork.exp: Adjust to spell out "follow-fork".
* gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being
left listed after having been killed.
* gdb.base/attach.exp: Adjust to spell out "symbol-file".
* gdb.base/maint.exp: Adjust test.
* Makefile.in (ALL_SUBDIRS): Add gdb.multi.
* gdb.multi/Makefile.in: New.
* gdb.multi/base.exp: New.
* gdb.multi/goodbye.c: New.
* gdb.multi/hangout.c: New.
* gdb.multi/hello.c: New.
* gdb.multi/bkpt-multi-exec.c: New.
* gdb.multi/bkpt-multi-exec.exp: New.
* gdb.multi/crashme.c: New.
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/doc/
* gdb.texinfo (Inferiors): Rename node to ...
(Inferiors and Programs): ... this. Mention running multiple
programs in the same debug session.
<info inferiors>: Mention the new 'Executable' column if "info
inferiors". Update examples. Document the "add-inferior",
"clone-inferior", "remove-inferior" and "maint info
program-spaces" commands.
(Process): Rename node to...
(Forks): ... this. Document "set|show follow-exec-mode".
2009-10-19 11:51:43 +02:00
|
|
|
|
|
|
|
|
|
if (inf == NULL || inf->aspace == NULL)
|
2011-01-05 23:22:53 +01:00
|
|
|
|
internal_error (__FILE__, __LINE__,
|
2011-01-11 16:10:03 +01:00
|
|
|
|
_("Can't determine the current "
|
|
|
|
|
"address space of thread %s\n"),
|
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
Add base multi-executable/process support to GDB.
gdb/
* Makefile.in (SFILES): Add progspace.c.
(COMMON_OBS): Add progspace.o.
* progspace.h: New.
* progspace.c: New.
* breakpoint.h (struct bp_target_info) <placed_address_space>: New
field.
(struct bp_location) <pspace>: New field.
(struct breakpoint) <pspace>: New field.
(bpstat_stop_status, breakpoint_here_p)
(moribund_breakpoint_here_p, breakpoint_inserted_here_p)
(regular_breakpoint_inserted_here_p)
(software_breakpoint_inserted_here_p, breakpoint_thread_match)
(set_default_breakpoint): Adjust prototypes.
(remove_breakpoints_pid, breakpoint_program_space_exit): Declare.
(insert_single_step_breakpoint, deprecated_insert_raw_breakpoint):
Adjust prototypes.
* breakpoint.c (executing_startup): Delete.
(default_breakpoint_sspace): New.
(breakpoint_restore_shadows): Skip if the address space doesn't
match.
(update_watchpoint): Record the frame's program space in the
breakpoint location.
(insert_bp_location): Record the address space in target_info.
Adjust to pass the symbol space to solib_name_from_address.
(breakpoint_program_space_exit): New.
(insert_breakpoint_locations): Switch the symbol space and thread
when inserting breakpoints. Don't insert breakpoints in a vfork
parent waiting for vfork done if we're not attached to the vfork
child.
(remove_breakpoints_pid): New.
(reattach_breakpoints): Switch to a thread of PID. Ignore
breakpoints of other symbol spaces.
(create_internal_breakpoint): Store the symbol space in the sal.
(create_longjmp_master_breakpoint): Iterate over all symbol
spaces.
(update_breakpoints_after_exec): Ignore breakpoints for other
symbol spaces.
(remove_breakpoint): Rename to ...
(remove_breakpoint_1): ... this. Pass the breakpoints symbol
space to solib_name_from_address.
(remove_breakpoint): New.
(mark_breakpoints_out): Ignore breakpoints from other symbol
spaces.
(breakpoint_init_inferior): Ditto.
(breakpoint_here_p): Add an address space argument and adjust to
use breakpoint_address_match.
(moribund_breakpoint_here_p): Ditto.
(regular_breakpoint_inserted_here_p): Ditto.
(breakpoint_inserted_here_p): Ditto.
(software_breakpoint_inserted_here_p): Ditto.
(breakpoint_thread_match): Ditto.
(bpstat_check_location): Ditto.
(bpstat_stop_status): Ditto.
(print_breakpoint_location): If there's a location to print,
switch the current symbol space.
(print_one_breakpoint_location): Add `allflag' argument.
(print_one_breakpoint): Ditto. Adjust.
(do_captured_breakpoint_query): Adjust.
(breakpoint_1): Adjust.
(breakpoint_has_pc): Also match the symbol space.
(describe_other_breakpoints): Add a symbol space argument and
adjust.
(set_default_breakpoint): Add a symbol space argument. Set
default_breakpoint_sspace.
(breakpoint_address_match): New.
(check_duplicates_for): Add an address space argument, and adjust.
(set_raw_breakpoint): Record the symbol space in the location and
in the breakpoint.
(set_longjmp_breakpoint): Skip longjmp master breakpoints from
other symbol spaces.
(remove_thread_event_breakpoints, remove_solib_event_breakpoints)
(disable_breakpoints_in_shlibs): Skip breakpoints from other
symbol spaces.
(disable_breakpoints_in_unloaded_shlib): Match symbol spaces.
(create_catchpoint): Set the symbol space in the sal.
(disable_breakpoints_before_startup): Skip breakpoints from other
symbol spaces. Set executing_startup in the current symbol space.
(enable_breakpoints_after_startup): Clear executing_startup in the
current symbol space. Skip breakpoints from other symbol spaces.
(clone_momentary_breakpoint): Also copy the symbol space.
(add_location_to_breakpoint): Set the location's symbol space.
(bp_loc_is_permanent): Switch thread and symbol space.
(create_breakpoint): Adjust.
(expand_line_sal_maybe): Expand comment to mention symbol spaces.
Switch thread and symbol space when reading memory.
(parse_breakpoint_sals): Set the symbol space in the sal.
(break_command_really): Ditto.
(skip_prologue_sal): Switch and space.
(resolve_sal_pc): Ditto.
(watch_command_1): Record the symbol space in the sal.
(create_ada_exception_breakpoint): Adjust.
(clear_command): Adjust. Match symbol spaces.
(update_global_location_list): Use breakpoint_address_match.
(breakpoint_re_set_one): Switch thread and space.
(breakpoint_re_set): Save symbol space.
(breakpoint_re_set_thread): Also reset the symbol space.
(deprecated_insert_raw_breakpoint): Add an address space argument.
Adjust.
(insert_single_step_breakpoint): Ditto.
(single_step_breakpoint_inserted_here_p): Ditto.
(clear_syscall_counts): New.
(_initialize_breakpoint): Install it as inferior_exit observer.
* exec.h: Include "progspace.h".
(exec_bfd, exec_bfd_mtime): New defines.
(exec_close): Declare.
* exec.c: Include "gdbthread.h" and "progspace.h".
(exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete.
(using_exec_ops): New.
(exec_close_1): Rename to exec_close, and make public.
(exec_close): Rename to exec_close_1, and adjust all callers. Add
description. Remove target sections and close executables from
all program spaces.
(exec_file_attach): Add comment.
(add_target_sections): Check on `using_exec_ops' to check if the
target should be pushed.
(remove_target_sections): Only unpush the target if there are no
more target sections in any symbol space.
* gdbcore.h: Include "exec.h".
(exec_bfd, exec_bfd_mtime): Remove declarations.
* frame.h (get_frame_program_space, get_frame_address_space)
(frame_unwind_program_space): Declare.
* frame.c (struct frame_info) <pspace, aspace>: New fields.
(create_sentinel_frame): Add program space argument. Set the
pspace and aspace fields of the frame object.
(get_current_frame, create_new_frame): Adjust.
(get_frame_program_space): New.
(frame_unwind_program_space): New.
(get_frame_address_space): New.
* stack.c (print_frame_info): Adjust.
(print_frame): Use the frame's program space.
* gdbthread.h (any_live_thread_of_process): Declare.
* thread.c (any_live_thread_of_process): New.
(switch_to_thread): Switch the program space as well.
(restore_selected_frame): Don't warn if trying to restore frame
level 0.
* inferior.h: Include "progspace.h".
(detach_fork): Declare.
(struct inferior) <removable, aspace, pspace>
<vfork_parent, vfork_child, pending_detach>
<waiting_for_vfork_done>: New fields.
<terminal_info>: Remove field.
<data, num_data>: New fields.
(register_inferior_data, register_inferior_data_with_cleanup)
(clear_inferior_data, set_inferior_data, inferior_data): Declare.
(exit_inferior, exit_inferior_silent, exit_inferior_num_silent)
(inferior_appeared): Declare.
(find_inferior_pid): Typo.
(find_inferior_id, find_inferior_for_program_space): Declare.
(set_current_inferior, save_current_inferior, prune_inferiors)
(number_of_inferiors): Declare.
(inferior_list): Declare.
* inferior.c: Include "gdbcore.h" and "symfile.h".
(inferior_list): Make public.
(delete_inferior_1): Always delete thread silently.
(find_inferior_id): Make public.
(current_inferior_): New.
(current_inferior): Use it.
(set_current_inferior): New.
(restore_inferior): New.
(save_current_inferior): New.
(free_inferior): Free the per-inferior data.
(add_inferior_silent): Allocate per-inferior data.
Call inferior_appeared.
(delete_threads_of_inferior): New.
(delete_inferior_1): Adjust interface to take an inferior pointer.
(delete_inferior): Adjust.
(delete_inferior_silent): Adjust.
(exit_inferior_1): New.
(exit_inferior): New.
(exit_inferior_silent): New.
(exit_inferior_num_silent): New.
(detach_inferior): Adjust.
(inferior_appeared): New.
(discard_all_inferiors): Adjust.
(find_inferior_id): Make public. Assert pid is not zero.
(find_inferior_for_program_space): New.
(have_inferiors): Check if we have any inferior with pid not zero.
(have_live_inferiors): Go over all pushed targets looking for
process_stratum.
(prune_inferiors): New.
(number_of_inferiors): New.
(print_inferior): Add executable column. Print vfork parent/child
relationships.
(inferior_command): Adjust to cope with not running inferiors.
(remove_inferior_command): New.
(add_inferior_command): New.
(clone_inferior_command): New.
(struct inferior_data): New.
(struct inferior_data_registration): New.
(struct inferior_data_registry): New.
(inferior_data_registry): New.
(register_inferior_data_with_cleanup): New.
(register_inferior_data): New.
(inferior_alloc_data): New.
(inferior_free_data): New.
(clear_inferior_data): New.
(set_inferior_data): New.
(inferior_data): New.
(initialize_inferiors): New.
(_initialize_inferiors): Register "add-inferior",
"remove-inferior" and "clone-inferior" commands.
* objfiles.h: Include "progspace.h".
(struct objfile) <pspace>: New field.
(symfile_objfile, object_files): Don't declare.
(ALL_PSPACE_OBJFILES): New.
(ALL_PSPACE_OBJFILES_SAFE): New.
(ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust.
(ALL_PSPACE_SYMTABS): New.
(ALL_PRIMARY_SYMTABS): Adjust.
(ALL_PSPACE_PRIMARY_SYMTABS): New.
(ALL_PSYMTABS): Adjust.
(ALL_PSPACE_PSYMTABS): New.
* objfiles.c (object_files, symfile_objfile): Delete.
(struct objfile_sspace_info): New.
(objfiles_pspace_data): New.
(objfiles_pspace_data_cleanup): New.
(get_objfile_pspace_data): New.
(objfiles_changed_p): Delete.
(allocate_objfile): Set the objfile's program space. Adjust to
reference objfiles_changed_p in pspace data.
(free_objfile): Adjust to reference objfiles_changed_p in pspace
data.
(objfile_relocate): Ditto.
(update_section_map): Add pspace argument. Adjust to iterate over
objfiles in the passed in pspace.
(find_pc_section): Delete sections and num_sections statics.
Adjust to refer to program space's objfiles_changed_p. Adjust to
refer to sections and num_sections store in the objfile's pspace
data.
(objfiles_changed): Adjust to reference objfiles_changed_p in
pspace data.
(_initialize_objfiles): New.
* linespec.c (decode_all_digits, decode_dollar): Set the sal's
program space.
* source.c (current_source_pspace): New.
(get_current_source_symtab_and_line): Set the sal's program space.
(set_current_source_symtab_and_line): Set current_source_pspace.
(select_source_symtab): Ditto. Use ALL_OBJFILES.
(forget_cached_source_info): Iterate over all program spaces.
* symfile.c (clear_symtab_users): Adjust.
* symmisc.c (print_symbol_bcache_statistics): Iterate over all
program spaces.
(print_objfile_statistics): Ditto.
(maintenance_print_msymbols): Ditto.
(maintenance_print_objfiles): Ditto.
(maintenance_info_symtabs): Ditto.
(maintenance_info_psymtabs): Ditto.
* symtab.h (SYMTAB_PSPACE): New.
(struct symtab_and_line) <pspace>: New field.
* symtab.c (init_sal): Clear the sal's program space.
(find_pc_sect_symtab): Set the sal's program space. Switch thread
and space.
(append_expanded_sal): Add program space argument. Iterate over
all program spaces.
(expand_line_sal): Iterate over all program spaces. Switch
program space.
* target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New.
(struct target_ops) <to_thread_address_space>: New field.
(target_thread_address_space): Define.
* target.c (target_detach): Only remove breakpoints from the
inferior we're detaching.
(target_thread_address_space): New.
* defs.h (initialize_progspace): Declare.
* top.c (gdb_init): Call it.
* solist.h (struct so_list) <sspace>: New field.
* solib.h (struct program_space): Forward declare.
(solib_name_from_address): Adjust prototype.
* solib.c (so_list_head): Replace with a macro referencing the
program space.
(update_solib_list): Set the so's program space.
(solib_name_from_address): Add a program space argument and adjust.
* solib-svr4.c (struct svr4_info) <pid>: Delete field.
<interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low>
<interp_plt_sect_high>: New fields.
(svr4_info_p, svr4_info): Delete.
(solib_svr4_sspace_data): New.
(get_svr4_info): Rewrite.
(svr4_sspace_data_cleanup): New.
(open_symbol_file_object): Adjust.
(svr4_default_sos): Adjust.
(svr4_fetch_objfile_link_map): Adjust.
(interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low)
(interp_plt_sect_high): Delete.
(svr4_in_dynsym_resolve_code): Adjust.
(enable_break): Adjust.
(svr4_clear_solib): Revert bit that removed the svr4_info here,
and reinstate clearing debug_base, debug_loader_offset_p,
debug_loader_offset and debug_loader_name.
(_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't
install an inferior_exit observer anymore.
* printcmd.c (struct display) <pspace>: New field.
(display_command): Set the display's sspace.
(do_one_display): Match the display's sspace.
(display_uses_solib_p): Ditto.
* linux-fork.c (detach_fork): Moved to infrun.c.
(_initialize_linux_fork): Moved "detach-on-fork" command to
infrun.c.
* infrun.c (detach_fork): Moved from linux-fork.c.
(proceed_after_vfork_done): New.
(handle_vfork_child_exec_or_exit): New.
(follow_exec_mode_replace, follow_exec_mode_keep)
(follow_exec_mode_names, follow_exec_mode_string)
(show_follow_exec_mode_string): New.
(follow_exec): New. Reinstate the mark_breakpoints_out call.
Remove shared libraries before attaching new executable. If user
wants to keep the inferior, keep it.
(displaced_step_fixup): Adjust to pass an address space to the
breakpoints module.
(resume): Ditto.
(clear_proceed_status): In all-stop mode, always clear the proceed
status of all threads.
(prepare_to_proceed): Adjust to pass an address space to the
breakpoints module.
(proceed): Ditto.
(adjust_pc_after_break): Ditto.
(handle_inferior_event): When handling a process exit, switch the
program space to the inferior's that had exited. Call
handle_vfork_child_exec_or_exit. Adjust to pass an address space
to the breakpoints module. In non-stop mode, when following a
fork and detach-fork is off, also resume the other branch. Handle
TARGET_WAITKIND_VFORK_DONE. Set the program space in sals.
(normal_stop): Prune inferiors.
(_initialize_infrun): Install the new "follow-exec-mode" command.
"detach-on-fork" moved here.
* regcache.h (get_regcache_aspace): Declare.
* regcache.c (struct regcache) <aspace>: New field.
(regcache_xmalloc): Clear the aspace.
(get_regcache_aspace): New.
(regcache_cpy): Copy the aspace field.
(regcache_cpy_no_passthrough): Ditto.
(get_thread_regcache): Fetch the thread's address space from the
target, and store it in the regcache.
* infcall.c (call_function_by_hand): Set the sal's pspace.
* arch-utils.c (default_has_shared_address_space): New.
* arch-utils.h (default_has_shared_address_space): Declare.
* gdbarch.sh (has_shared_address_space): New.
* gdbarch.h, gdbarch.c: Regenerate.
* linux-tdep.c: Include auxv.h, target.h, elf/common.h.
(linux_has_shared_address_space): New.
(_initialize_linux_tdep): Declare.
* arm-tdep.c (arm_software_single_step): Pass the frame's address
space to insert_single_step_breakpoint.
* arm-linux-tdep.c (arm_linux_software_single_step): Pass the
frame's pspace to breakpoint functions.
* cris-tdep.c (crisv32_single_step_through_delay): Ditto.
(cris_software_single_step): Ditto.
* mips-tdep.c (deal_with_atomic_sequence): Add frame argument.
Pass the frame's pspace to breakpoint functions.
(mips_software_single_step): Adjust.
(mips_single_step_through_delay): Adjust.
* rs6000-aix-tdep.c (rs6000_software_single_step): Adjust.
* rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust.
* solib-irix.c (enable_break): Adjust to pass the current frame's
address space to breakpoint functions.
* sparc-tdep.c (sparc_software_single_step): Ditto.
* spu-tdep.c (spu_software_single_step): Ditto.
* alpha-tdep.c (alpha_software_single_step): Ditto.
* record.c (record_wait): Adjust to pass an address space to the
breakpoints module.
* fork-child.c (fork_inferior): Set the new inferior's program and
address spaces.
* inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program
and address spaces.
(inf_ptrace_attach): Set the inferior's program and address spaces.
* linux-nat.c: Include "solib.h".
(linux_child_follow_fork): Manage parent and child's program and
address spaces. Clone the parent's program space if necessary.
Don't wait for the vfork to be done here. Refuse to resume if
following the vfork parent while leaving the child stopped.
(resume_callback): Don't resume a vfork parent.
(linux_nat_resume): Also check for pending events in the
lp->waitstatus field.
(linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE
events to the core.
(stop_wait_callback): Don't wait for SIGSTOP on vfork parents.
(cancel_breakpoint): Adjust.
* linux-thread-db.c (thread_db_wait): Don't remove thread event
breakpoints here.
(thread_db_mourn_inferior): Don't mark breakpoints out here.
Remove thread event breakpoints after mourning.
* corelow.c: Include progspace.h.
(core_open): Set the inferior's program and address spaces.
* remote.c (remote_add_inferior): Set the new inferior's program
and address spaces.
(remote_start_remote): Update address spaces.
(extended_remote_create_inferior_1): Don't init the thread list if
we already debugging other inferiors.
* darwin-nat.c (darwin_attach): Set the new inferior's program and
address spaces.
* gnu-nat.c (gnu_attach): Ditto.
* go32-nat.c (go32_create_inferior): Ditto.
* inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto.
* monitor.c (monitor_open): Ditto.
* nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto.
* procfs.c (do_attach): Ditto.
* windows-nat.c (do_initial_windows_stuff): Ditto.
* inflow.c (inferior_process_group)
(terminal_init_inferior_with_pgrp, terminal_inferior,
(terminal_ours_1, inflow_inferior_exit, copy_terminal_info)
(child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust
to use per-inferior data instead of inferior->terminal_info.
(inflow_inferior_data): New.
(inflow_new_inferior): Delete.
(inflow_inferior_data_cleanup): New.
(get_inflow_inferior_data): New.
* mi/mi-interp.c (mi_new_inferior): Rename to...
(mi_inferior_appeared): ... this.
(mi_interpreter_init): Adjust.
* tui/tui-disasm.c: Include "progspace.h".
(tui_set_disassem_content): Pass an address space to
breakpoint_here_p.
* NEWS: Mention multi-program debugging support. Mention new
commands "add-inferior", "clone-inferior", "remove-inferior",
"maint info program-spaces", and new option "set
follow-exec-mode".
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/doc/
* observer.texi (new_inferior): Rename to...
(inferior_appeared): ... this.
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/testsuite/
* gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork".
* gdb.base/foll-exec.exp: Adjust to expect a process id before
"Executing new program".
* gdb.base/foll-fork.exp: Adjust to spell out "follow-fork".
* gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being
left listed after having been killed.
* gdb.base/attach.exp: Adjust to spell out "symbol-file".
* gdb.base/maint.exp: Adjust test.
* Makefile.in (ALL_SUBDIRS): Add gdb.multi.
* gdb.multi/Makefile.in: New.
* gdb.multi/base.exp: New.
* gdb.multi/goodbye.c: New.
* gdb.multi/hangout.c: New.
* gdb.multi/hello.c: New.
* gdb.multi/bkpt-multi-exec.c: New.
* gdb.multi/bkpt-multi-exec.exp: New.
* gdb.multi/crashme.c: New.
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/doc/
* gdb.texinfo (Inferiors): Rename node to ...
(Inferiors and Programs): ... this. Mention running multiple
programs in the same debug session.
<info inferiors>: Mention the new 'Executable' column if "info
inferiors". Update examples. Document the "add-inferior",
"clone-inferior", "remove-inferior" and "maint info
program-spaces" commands.
(Process): Rename node to...
(Forks): ... this. Document "set|show follow-exec-mode".
2009-10-19 11:51:43 +02:00
|
|
|
|
target_pid_to_str (ptid));
|
|
|
|
|
|
|
|
|
|
return inf->aspace;
|
|
|
|
|
}
|
|
|
|
|
|
2014-02-21 18:33:42 +01:00
|
|
|
|
/* Determine the current address space of thread PTID. */
|
|
|
|
|
|
|
|
|
|
struct address_space *
|
|
|
|
|
target_thread_address_space (ptid_t ptid)
|
|
|
|
|
{
|
|
|
|
|
struct address_space *aspace;
|
|
|
|
|
|
|
|
|
|
aspace = current_target.to_thread_address_space (¤t_target, ptid);
|
|
|
|
|
gdb_assert (aspace != NULL);
|
|
|
|
|
|
|
|
|
|
return aspace;
|
|
|
|
|
}
|
|
|
|
|
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
|
|
|
|
|
/* Target file operations. */
|
|
|
|
|
|
|
|
|
|
static struct target_ops *
|
|
|
|
|
default_fileio_target (void)
|
|
|
|
|
{
|
|
|
|
|
/* If we're already connected to something that can perform
|
|
|
|
|
file I/O, use it. Otherwise, try using the native target. */
|
|
|
|
|
if (current_target.to_stratum >= process_stratum)
|
|
|
|
|
return current_target.beneath;
|
|
|
|
|
else
|
|
|
|
|
return find_default_run_target ("file I/O");
|
|
|
|
|
}
|
|
|
|
|
|
2015-03-25 12:26:43 +01:00
|
|
|
|
/* File handle for target file operations. */
|
|
|
|
|
|
|
|
|
|
typedef struct
|
|
|
|
|
{
|
|
|
|
|
/* The target on which this file is open. */
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
|
|
|
|
/* The file descriptor on the target. */
|
|
|
|
|
int fd;
|
|
|
|
|
} fileio_fh_t;
|
|
|
|
|
|
|
|
|
|
DEF_VEC_O (fileio_fh_t);
|
|
|
|
|
|
|
|
|
|
/* Vector of currently open file handles. The value returned by
|
|
|
|
|
target_fileio_open and passed as the FD argument to other
|
|
|
|
|
target_fileio_* functions is an index into this vector. This
|
|
|
|
|
vector's entries are never freed; instead, files are marked as
|
|
|
|
|
closed, and the handle becomes available for reuse. */
|
|
|
|
|
static VEC (fileio_fh_t) *fileio_fhandles;
|
|
|
|
|
|
|
|
|
|
/* Macro to check whether a fileio_fh_t represents a closed file. */
|
|
|
|
|
#define is_closed_fileio_fh(fd) ((fd) < 0)
|
|
|
|
|
|
|
|
|
|
/* Index into fileio_fhandles of the lowest handle that might be
|
|
|
|
|
closed. This permits handle reuse without searching the whole
|
|
|
|
|
list each time a new file is opened. */
|
|
|
|
|
static int lowest_closed_fd;
|
|
|
|
|
|
|
|
|
|
/* Acquire a target fileio file descriptor. */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
acquire_fileio_fd (struct target_ops *t, int fd)
|
|
|
|
|
{
|
|
|
|
|
fileio_fh_t *fh, buf;
|
|
|
|
|
|
|
|
|
|
gdb_assert (!is_closed_fileio_fh (fd));
|
|
|
|
|
|
|
|
|
|
/* Search for closed handles to reuse. */
|
|
|
|
|
for (;
|
|
|
|
|
VEC_iterate (fileio_fh_t, fileio_fhandles,
|
|
|
|
|
lowest_closed_fd, fh);
|
|
|
|
|
lowest_closed_fd++)
|
|
|
|
|
if (is_closed_fileio_fh (fh->fd))
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
/* Push a new handle if no closed handles were found. */
|
|
|
|
|
if (lowest_closed_fd == VEC_length (fileio_fh_t, fileio_fhandles))
|
|
|
|
|
fh = VEC_safe_push (fileio_fh_t, fileio_fhandles, NULL);
|
|
|
|
|
|
|
|
|
|
/* Fill in the handle. */
|
|
|
|
|
fh->t = t;
|
|
|
|
|
fh->fd = fd;
|
|
|
|
|
|
|
|
|
|
/* Return its index, and start the next lookup at
|
|
|
|
|
the next index. */
|
|
|
|
|
return lowest_closed_fd++;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Release a target fileio file descriptor. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
release_fileio_fd (int fd, fileio_fh_t *fh)
|
|
|
|
|
{
|
|
|
|
|
fh->fd = -1;
|
|
|
|
|
lowest_closed_fd = min (lowest_closed_fd, fd);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Return a pointer to the fileio_fhandle_t corresponding to FD. */
|
|
|
|
|
|
|
|
|
|
#define fileio_fd_to_fh(fd) \
|
|
|
|
|
VEC_index (fileio_fh_t, fileio_fhandles, (fd))
|
|
|
|
|
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
/* Open FILENAME on the target, using FLAGS and MODE. Return a
|
|
|
|
|
target file descriptor, or -1 if an error occurs (and set
|
|
|
|
|
*TARGET_ERRNO). */
|
|
|
|
|
int
|
|
|
|
|
target_fileio_open (const char *filename, int flags, int mode,
|
|
|
|
|
int *target_errno)
|
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
|
|
|
|
for (t = default_fileio_target (); t != NULL; t = t->beneath)
|
|
|
|
|
{
|
|
|
|
|
if (t->to_fileio_open != NULL)
|
|
|
|
|
{
|
2013-12-18 05:38:21 +01:00
|
|
|
|
int fd = t->to_fileio_open (t, filename, flags, mode, target_errno);
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
|
2015-03-25 12:26:43 +01:00
|
|
|
|
if (fd < 0)
|
|
|
|
|
fd = -1;
|
|
|
|
|
else
|
|
|
|
|
fd = acquire_fileio_fd (t, fd);
|
|
|
|
|
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
if (targetdebug)
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
|
|
|
"target_fileio_open (%s,0x%x,0%o) = %d (%d)\n",
|
|
|
|
|
filename, flags, mode,
|
|
|
|
|
fd, fd != -1 ? 0 : *target_errno);
|
|
|
|
|
return fd;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
*target_errno = FILEIO_ENOSYS;
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Write up to LEN bytes from WRITE_BUF to FD on the target.
|
|
|
|
|
Return the number of bytes written, or -1 if an error occurs
|
|
|
|
|
(and set *TARGET_ERRNO). */
|
|
|
|
|
int
|
|
|
|
|
target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len,
|
|
|
|
|
ULONGEST offset, int *target_errno)
|
|
|
|
|
{
|
2015-03-25 12:26:43 +01:00
|
|
|
|
fileio_fh_t *fh = fileio_fd_to_fh (fd);
|
|
|
|
|
int ret = -1;
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
|
2015-03-25 12:26:43 +01:00
|
|
|
|
if (is_closed_fileio_fh (fh->fd))
|
|
|
|
|
*target_errno = EBADF;
|
|
|
|
|
else
|
|
|
|
|
ret = fh->t->to_fileio_pwrite (fh->t, fh->fd, write_buf,
|
|
|
|
|
len, offset, target_errno);
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
|
2015-03-25 12:26:43 +01:00
|
|
|
|
if (targetdebug)
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
|
|
|
"target_fileio_pwrite (%d,...,%d,%s) "
|
|
|
|
|
"= %d (%d)\n",
|
|
|
|
|
fd, len, pulongest (offset),
|
|
|
|
|
ret, ret != -1 ? 0 : *target_errno);
|
|
|
|
|
return ret;
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Read up to LEN bytes FD on the target into READ_BUF.
|
|
|
|
|
Return the number of bytes read, or -1 if an error occurs
|
|
|
|
|
(and set *TARGET_ERRNO). */
|
|
|
|
|
int
|
|
|
|
|
target_fileio_pread (int fd, gdb_byte *read_buf, int len,
|
|
|
|
|
ULONGEST offset, int *target_errno)
|
|
|
|
|
{
|
2015-03-25 12:26:43 +01:00
|
|
|
|
fileio_fh_t *fh = fileio_fd_to_fh (fd);
|
|
|
|
|
int ret = -1;
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
|
2015-03-25 12:26:43 +01:00
|
|
|
|
if (is_closed_fileio_fh (fh->fd))
|
|
|
|
|
*target_errno = EBADF;
|
|
|
|
|
else
|
|
|
|
|
ret = fh->t->to_fileio_pread (fh->t, fh->fd, read_buf,
|
|
|
|
|
len, offset, target_errno);
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
|
2015-03-25 12:26:43 +01:00
|
|
|
|
if (targetdebug)
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
|
|
|
"target_fileio_pread (%d,...,%d,%s) "
|
|
|
|
|
"= %d (%d)\n",
|
|
|
|
|
fd, len, pulongest (offset),
|
|
|
|
|
ret, ret != -1 ? 0 : *target_errno);
|
2015-04-02 14:38:28 +02:00
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
int
|
|
|
|
|
target_fileio_fstat (int fd, struct stat *sb, int *target_errno)
|
|
|
|
|
{
|
|
|
|
|
fileio_fh_t *fh = fileio_fd_to_fh (fd);
|
|
|
|
|
int ret = -1;
|
|
|
|
|
|
|
|
|
|
if (is_closed_fileio_fh (fh->fd))
|
|
|
|
|
*target_errno = EBADF;
|
|
|
|
|
else
|
|
|
|
|
ret = fh->t->to_fileio_fstat (fh->t, fh->fd, sb, target_errno);
|
|
|
|
|
|
|
|
|
|
if (targetdebug)
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
|
|
|
"target_fileio_fstat (%d) = %d (%d)\n",
|
|
|
|
|
fd, ret, ret != -1 ? 0 : *target_errno);
|
2015-03-25 12:26:43 +01:00
|
|
|
|
return ret;
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Close FD on the target. Return 0, or -1 if an error occurs
|
|
|
|
|
(and set *TARGET_ERRNO). */
|
|
|
|
|
int
|
|
|
|
|
target_fileio_close (int fd, int *target_errno)
|
|
|
|
|
{
|
2015-03-25 12:26:43 +01:00
|
|
|
|
fileio_fh_t *fh = fileio_fd_to_fh (fd);
|
|
|
|
|
int ret = -1;
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
|
2015-03-25 12:26:43 +01:00
|
|
|
|
if (is_closed_fileio_fh (fh->fd))
|
|
|
|
|
*target_errno = EBADF;
|
|
|
|
|
else
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
{
|
2015-03-25 12:26:43 +01:00
|
|
|
|
ret = fh->t->to_fileio_close (fh->t, fh->fd, target_errno);
|
|
|
|
|
release_fileio_fd (fd, fh);
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
}
|
|
|
|
|
|
2015-03-25 12:26:43 +01:00
|
|
|
|
if (targetdebug)
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
|
|
|
"target_fileio_close (%d) = %d (%d)\n",
|
|
|
|
|
fd, ret, ret != -1 ? 0 : *target_errno);
|
|
|
|
|
return ret;
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Unlink FILENAME on the target. Return 0, or -1 if an error
|
|
|
|
|
occurs (and set *TARGET_ERRNO). */
|
|
|
|
|
int
|
|
|
|
|
target_fileio_unlink (const char *filename, int *target_errno)
|
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
|
|
|
|
for (t = default_fileio_target (); t != NULL; t = t->beneath)
|
|
|
|
|
{
|
|
|
|
|
if (t->to_fileio_unlink != NULL)
|
|
|
|
|
{
|
2013-12-18 05:39:11 +01:00
|
|
|
|
int ret = t->to_fileio_unlink (t, filename, target_errno);
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
|
|
|
|
|
if (targetdebug)
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
|
|
|
"target_fileio_unlink (%s) = %d (%d)\n",
|
|
|
|
|
filename, ret, ret != -1 ? 0 : *target_errno);
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
*target_errno = FILEIO_ENOSYS;
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
|
2012-01-20 10:47:32 +01:00
|
|
|
|
/* Read value of symbolic link FILENAME on the target. Return a
|
|
|
|
|
null-terminated string allocated via xmalloc, or NULL if an error
|
|
|
|
|
occurs (and set *TARGET_ERRNO). */
|
|
|
|
|
char *
|
|
|
|
|
target_fileio_readlink (const char *filename, int *target_errno)
|
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
|
|
|
|
for (t = default_fileio_target (); t != NULL; t = t->beneath)
|
|
|
|
|
{
|
|
|
|
|
if (t->to_fileio_readlink != NULL)
|
|
|
|
|
{
|
2013-12-18 05:39:24 +01:00
|
|
|
|
char *ret = t->to_fileio_readlink (t, filename, target_errno);
|
2012-01-20 10:47:32 +01:00
|
|
|
|
|
|
|
|
|
if (targetdebug)
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog,
|
|
|
|
|
"target_fileio_readlink (%s) = %s (%d)\n",
|
|
|
|
|
filename, ret? ret : "(nil)",
|
|
|
|
|
ret? 0 : *target_errno);
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
*target_errno = FILEIO_ENOSYS;
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
|
|
|
|
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
static void
|
|
|
|
|
target_fileio_close_cleanup (void *opaque)
|
|
|
|
|
{
|
|
|
|
|
int fd = *(int *) opaque;
|
|
|
|
|
int target_errno;
|
|
|
|
|
|
|
|
|
|
target_fileio_close (fd, &target_errno);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Read target file FILENAME. Store the result in *BUF_P and
|
|
|
|
|
return the size of the transferred data. PADDING additional bytes are
|
|
|
|
|
available in *BUF_P. This is a helper function for
|
|
|
|
|
target_fileio_read_alloc; see the declaration of that function for more
|
|
|
|
|
information. */
|
|
|
|
|
|
|
|
|
|
static LONGEST
|
|
|
|
|
target_fileio_read_alloc_1 (const char *filename,
|
|
|
|
|
gdb_byte **buf_p, int padding)
|
|
|
|
|
{
|
|
|
|
|
struct cleanup *close_cleanup;
|
|
|
|
|
size_t buf_alloc, buf_pos;
|
|
|
|
|
gdb_byte *buf;
|
|
|
|
|
LONGEST n;
|
|
|
|
|
int fd;
|
|
|
|
|
int target_errno;
|
|
|
|
|
|
|
|
|
|
fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno);
|
|
|
|
|
if (fd == -1)
|
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
|
|
close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd);
|
|
|
|
|
|
|
|
|
|
/* Start by reading up to 4K at a time. The target will throttle
|
|
|
|
|
this number down if necessary. */
|
|
|
|
|
buf_alloc = 4096;
|
|
|
|
|
buf = xmalloc (buf_alloc);
|
|
|
|
|
buf_pos = 0;
|
|
|
|
|
while (1)
|
|
|
|
|
{
|
|
|
|
|
n = target_fileio_pread (fd, &buf[buf_pos],
|
|
|
|
|
buf_alloc - buf_pos - padding, buf_pos,
|
|
|
|
|
&target_errno);
|
|
|
|
|
if (n < 0)
|
|
|
|
|
{
|
|
|
|
|
/* An error occurred. */
|
|
|
|
|
do_cleanups (close_cleanup);
|
|
|
|
|
xfree (buf);
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
else if (n == 0)
|
|
|
|
|
{
|
|
|
|
|
/* Read all there was. */
|
|
|
|
|
do_cleanups (close_cleanup);
|
|
|
|
|
if (buf_pos == 0)
|
|
|
|
|
xfree (buf);
|
|
|
|
|
else
|
|
|
|
|
*buf_p = buf;
|
|
|
|
|
return buf_pos;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
buf_pos += n;
|
|
|
|
|
|
|
|
|
|
/* If the buffer is filling up, expand it. */
|
|
|
|
|
if (buf_alloc < buf_pos * 2)
|
|
|
|
|
{
|
|
|
|
|
buf_alloc *= 2;
|
|
|
|
|
buf = xrealloc (buf, buf_alloc);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
QUIT;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Read target file FILENAME. Store the result in *BUF_P and return
|
|
|
|
|
the size of the transferred data. See the declaration in "target.h"
|
|
|
|
|
function for more information about the return value. */
|
|
|
|
|
|
|
|
|
|
LONGEST
|
|
|
|
|
target_fileio_read_alloc (const char *filename, gdb_byte **buf_p)
|
|
|
|
|
{
|
|
|
|
|
return target_fileio_read_alloc_1 (filename, buf_p, 0);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Read target file FILENAME. The result is NUL-terminated and
|
|
|
|
|
returned as a string, allocated using xmalloc. If an error occurs
|
|
|
|
|
or the transfer is unsupported, NULL is returned. Empty objects
|
|
|
|
|
are returned as allocated but empty strings. A warning is issued
|
|
|
|
|
if the result contains any embedded NUL bytes. */
|
|
|
|
|
|
|
|
|
|
char *
|
|
|
|
|
target_fileio_read_stralloc (const char *filename)
|
|
|
|
|
{
|
Avoid invalid pointer to pointer conversions.
Casts between 'char **' <-> 'unsigned char **' and 'char **' <-> const
char **' are actually invalid:
http://gcc.gnu.org/ml/gcc-help/2013-03/msg00118.html
In a nutshell, char (and variants) can alias anything, but pointers to
chars get no special treatment (cf. C99/N1256, 6.5/7).
Turns out older gcc's actually warn/complain on these constructs,
though newer one's don't:
http://sourceware.org/ml/gdb-patches/2013-03/msg00429.html
http://sourceware.org/ml/gdb-patches/2013-03/msg00430.html
This patch fixes the cases I added last week. It also fixes one other
preexisting case in charset.c, though it seems even older gccs don't
complain of char * <-> const char * aliasing.
Tested on x86_64 Fedora 17.
gdb/
2013-03-11 Pedro Alves <palves@redhat.com>
* charset.c (convert_between_encodings): Don't cast between
different pointer to pointer types. Instead, make the 'inp' local
be of the type iconv expects.
(wchar_iterate): Don't cast between different pointer to pointer
types. Instead, use new pointer local of the type iconv expects.
* target.c (target_read_stralloc, target_fileio_read_stralloc):
Add new local of type char pointer, and use it to get a
char/string view of the byte buffer, instead of casting between
pointer to pointer types.
2013-03-11 13:22:20 +01:00
|
|
|
|
gdb_byte *buffer;
|
|
|
|
|
char *bufstr;
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
LONGEST i, transferred;
|
|
|
|
|
|
Avoid invalid pointer to pointer conversions.
Casts between 'char **' <-> 'unsigned char **' and 'char **' <-> const
char **' are actually invalid:
http://gcc.gnu.org/ml/gcc-help/2013-03/msg00118.html
In a nutshell, char (and variants) can alias anything, but pointers to
chars get no special treatment (cf. C99/N1256, 6.5/7).
Turns out older gcc's actually warn/complain on these constructs,
though newer one's don't:
http://sourceware.org/ml/gdb-patches/2013-03/msg00429.html
http://sourceware.org/ml/gdb-patches/2013-03/msg00430.html
This patch fixes the cases I added last week. It also fixes one other
preexisting case in charset.c, though it seems even older gccs don't
complain of char * <-> const char * aliasing.
Tested on x86_64 Fedora 17.
gdb/
2013-03-11 Pedro Alves <palves@redhat.com>
* charset.c (convert_between_encodings): Don't cast between
different pointer to pointer types. Instead, make the 'inp' local
be of the type iconv expects.
(wchar_iterate): Don't cast between different pointer to pointer
types. Instead, use new pointer local of the type iconv expects.
* target.c (target_read_stralloc, target_fileio_read_stralloc):
Add new local of type char pointer, and use it to get a
char/string view of the byte buffer, instead of casting between
pointer to pointer types.
2013-03-11 13:22:20 +01:00
|
|
|
|
transferred = target_fileio_read_alloc_1 (filename, &buffer, 1);
|
|
|
|
|
bufstr = (char *) buffer;
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
|
|
|
|
|
if (transferred < 0)
|
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
|
|
if (transferred == 0)
|
|
|
|
|
return xstrdup ("");
|
|
|
|
|
|
Avoid invalid pointer to pointer conversions.
Casts between 'char **' <-> 'unsigned char **' and 'char **' <-> const
char **' are actually invalid:
http://gcc.gnu.org/ml/gcc-help/2013-03/msg00118.html
In a nutshell, char (and variants) can alias anything, but pointers to
chars get no special treatment (cf. C99/N1256, 6.5/7).
Turns out older gcc's actually warn/complain on these constructs,
though newer one's don't:
http://sourceware.org/ml/gdb-patches/2013-03/msg00429.html
http://sourceware.org/ml/gdb-patches/2013-03/msg00430.html
This patch fixes the cases I added last week. It also fixes one other
preexisting case in charset.c, though it seems even older gccs don't
complain of char * <-> const char * aliasing.
Tested on x86_64 Fedora 17.
gdb/
2013-03-11 Pedro Alves <palves@redhat.com>
* charset.c (convert_between_encodings): Don't cast between
different pointer to pointer types. Instead, make the 'inp' local
be of the type iconv expects.
(wchar_iterate): Don't cast between different pointer to pointer
types. Instead, use new pointer local of the type iconv expects.
* target.c (target_read_stralloc, target_fileio_read_stralloc):
Add new local of type char pointer, and use it to get a
char/string view of the byte buffer, instead of casting between
pointer to pointer types.
2013-03-11 13:22:20 +01:00
|
|
|
|
bufstr[transferred] = 0;
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
|
|
|
|
|
/* Check for embedded NUL bytes; but allow trailing NULs. */
|
Avoid invalid pointer to pointer conversions.
Casts between 'char **' <-> 'unsigned char **' and 'char **' <-> const
char **' are actually invalid:
http://gcc.gnu.org/ml/gcc-help/2013-03/msg00118.html
In a nutshell, char (and variants) can alias anything, but pointers to
chars get no special treatment (cf. C99/N1256, 6.5/7).
Turns out older gcc's actually warn/complain on these constructs,
though newer one's don't:
http://sourceware.org/ml/gdb-patches/2013-03/msg00429.html
http://sourceware.org/ml/gdb-patches/2013-03/msg00430.html
This patch fixes the cases I added last week. It also fixes one other
preexisting case in charset.c, though it seems even older gccs don't
complain of char * <-> const char * aliasing.
Tested on x86_64 Fedora 17.
gdb/
2013-03-11 Pedro Alves <palves@redhat.com>
* charset.c (convert_between_encodings): Don't cast between
different pointer to pointer types. Instead, make the 'inp' local
be of the type iconv expects.
(wchar_iterate): Don't cast between different pointer to pointer
types. Instead, use new pointer local of the type iconv expects.
* target.c (target_read_stralloc, target_fileio_read_stralloc):
Add new local of type char pointer, and use it to get a
char/string view of the byte buffer, instead of casting between
pointer to pointer types.
2013-03-11 13:22:20 +01:00
|
|
|
|
for (i = strlen (bufstr); i < transferred; i++)
|
|
|
|
|
if (bufstr[i] != 0)
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
{
|
|
|
|
|
warning (_("target file %s "
|
|
|
|
|
"contained unexpected null characters"),
|
|
|
|
|
filename);
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
Avoid invalid pointer to pointer conversions.
Casts between 'char **' <-> 'unsigned char **' and 'char **' <-> const
char **' are actually invalid:
http://gcc.gnu.org/ml/gcc-help/2013-03/msg00118.html
In a nutshell, char (and variants) can alias anything, but pointers to
chars get no special treatment (cf. C99/N1256, 6.5/7).
Turns out older gcc's actually warn/complain on these constructs,
though newer one's don't:
http://sourceware.org/ml/gdb-patches/2013-03/msg00429.html
http://sourceware.org/ml/gdb-patches/2013-03/msg00430.html
This patch fixes the cases I added last week. It also fixes one other
preexisting case in charset.c, though it seems even older gccs don't
complain of char * <-> const char * aliasing.
Tested on x86_64 Fedora 17.
gdb/
2013-03-11 Pedro Alves <palves@redhat.com>
* charset.c (convert_between_encodings): Don't cast between
different pointer to pointer types. Instead, make the 'inp' local
be of the type iconv expects.
(wchar_iterate): Don't cast between different pointer to pointer
types. Instead, use new pointer local of the type iconv expects.
* target.c (target_read_stralloc, target_fileio_read_stralloc):
Add new local of type char pointer, and use it to get a
char/string view of the byte buffer, instead of casting between
pointer to pointer types.
2013-03-11 13:22:20 +01:00
|
|
|
|
return bufstr;
|
2012-01-20 Pedro Alves <palves@redhat.com>
Ulrich Weigand <ulrich.weigand@linaro.org>
* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
* config.in, configure: Regenerate.
* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
to_fileio_pread, to_fileio_close, to_fileio_unlink.
(target_fileio_open): Add prototype.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* target.c: Include "gdb/fileio.h".
(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
(default_fileio_target): New function.
(target_fileio_open): Likewise.
(target_fileio_pwrite): Likewise.
(target_fileio_pread): Likewise.
(target_fileio_close): Likewise.
(target_fileio_unlink): Likewise.
(target_fileio_close_cleanup): Likewise.
(target_fileio_read_alloc_1): Likewise.
(target_fileio_read_alloc): Likewise.
(target_fileio_read_stralloc): Likewise.
* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
<fcntl.h>, and <unistd.h>.
(inf_child_fileio_open_flags_to_host): New function.
(inf_child_errno_to_fileio_error): Likewise.
(inf_child_fileio_open): Likewise.
(inf_child_fileio_pwrite): Likewise.
(inf_child_fileio_pread): Likewise.
(inf_child_fileio_close): Likewise.
(inf_child_fileio_unlink): Likewise.
(inf_child_target): Install to_fileio routines.
* remote.c (init_remote_ops): Install to_fileio routines.
2012-01-20 10:45:51 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
2006-02-08 06:41:06 +01:00
|
|
|
|
static int
|
2013-12-18 05:29:45 +01:00
|
|
|
|
default_region_ok_for_hw_watchpoint (struct target_ops *self,
|
|
|
|
|
CORE_ADDR addr, int len)
|
2006-02-08 06:41:06 +01:00
|
|
|
|
{
|
* gdbarch.sh (target_gdbarch): Remove macro.
(get_target_gdbarch): Rename to target_gdbarch.
* gdbarch.c, gdbarch.h: Rebuild.
* ada-tasks.c, aix-thread.c, amd64-linux-nat.c, arch-utils.c,
arm-tdep.c, auxv.c, breakpoint.c, bsd-uthread.c, corefile.c,
darwin-nat-info.c, dcache.c, dsrec.c, exec.c, fbsd-nat.c,
filesystem.c, gcore.c, gnu-nat.c, i386-darwin-nat.c, i386-nat.c,
ia64-vms-tdep.c, inf-ptrace.c, infcmd.c, jit.c, linux-nat.c,
linux-tdep.c, linux-thread-db.c, m32r-rom.c, memattr.c,
mep-tdep.c, microblaze-tdep.c, mips-linux-nat.c,
mips-linux-tdep.c, mips-tdep.c, monitor.c, moxie-tdep.c,
nto-procfs.c, nto-tdep.c, ppc-linux-nat.c, proc-service.c,
procfs.c, progspace.c, ravenscar-thread.c, record.c,
remote-m32r-sdi.c, remote-mips.c, remote-sim.c, remote.c,
rl78-tdep.c, rs6000-nat.c, rx-tdep.c, s390-nat.c, sol-thread.c,
solib-darwin.c, solib-dsbt.c, solib-frv.c, solib-ia64-hpux.c,
solib-irix.c, solib-pa64.c, solib-som.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, solib.c, spu-linux-nat.c,
spu-multiarch.c, spu-tdep.c, symfile-mem.c, symfile.c, symtab.c,
target-descriptions.c, target.c, target.h, tracepoint.c,
windows-nat.c, windows-tdep.c, xcoffsolib.c, cli/cli-dump.c,
common/agent.c, mi/mi-interp.c, python/py-finishbreakpoint.c,
python/py-inferior.c, python/python.c: Update.
2012-11-09 20:58:03 +01:00
|
|
|
|
return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT);
|
* target.h: Add to_insert_hw_breakpoint, to_remove_hw_breakpoint,
to_insert_watchpoint, to_remove_watchpoint,
to_stopped_by_watchpoint, to_stopped_data_address,
to_region_size_ok_for_hw_watchpoint, to_can_use_hw_breakpoint to
target vecctor. Define their corresponding macros so they call
them.
* target.c: Add default and debug versions of for
to_insert_hw_breakpoint, to_remove_hw_breakpoint,
to_insert_watchpoint, to_remove_watchpoint,
to_stopped_by_watchpoint, to_stopped_data_address,
to_region_size_ok_for_hw_watchpoint, to_can_use_hw_breakpoint.
2002-08-01 23:20:14 +02:00
|
|
|
|
}
|
|
|
|
|
|
2008-05-02 13:07:25 +02:00
|
|
|
|
static int
|
|
|
|
|
default_watchpoint_addr_within_range (struct target_ops *target,
|
|
|
|
|
CORE_ADDR addr,
|
|
|
|
|
CORE_ADDR start, int length)
|
|
|
|
|
{
|
|
|
|
|
return addr >= start && addr < start + length;
|
|
|
|
|
}
|
|
|
|
|
|
2009-07-02 19:06:44 +02:00
|
|
|
|
static struct gdbarch *
|
|
|
|
|
default_thread_architecture (struct target_ops *ops, ptid_t ptid)
|
|
|
|
|
{
|
* gdbarch.sh (target_gdbarch): Remove macro.
(get_target_gdbarch): Rename to target_gdbarch.
* gdbarch.c, gdbarch.h: Rebuild.
* ada-tasks.c, aix-thread.c, amd64-linux-nat.c, arch-utils.c,
arm-tdep.c, auxv.c, breakpoint.c, bsd-uthread.c, corefile.c,
darwin-nat-info.c, dcache.c, dsrec.c, exec.c, fbsd-nat.c,
filesystem.c, gcore.c, gnu-nat.c, i386-darwin-nat.c, i386-nat.c,
ia64-vms-tdep.c, inf-ptrace.c, infcmd.c, jit.c, linux-nat.c,
linux-tdep.c, linux-thread-db.c, m32r-rom.c, memattr.c,
mep-tdep.c, microblaze-tdep.c, mips-linux-nat.c,
mips-linux-tdep.c, mips-tdep.c, monitor.c, moxie-tdep.c,
nto-procfs.c, nto-tdep.c, ppc-linux-nat.c, proc-service.c,
procfs.c, progspace.c, ravenscar-thread.c, record.c,
remote-m32r-sdi.c, remote-mips.c, remote-sim.c, remote.c,
rl78-tdep.c, rs6000-nat.c, rx-tdep.c, s390-nat.c, sol-thread.c,
solib-darwin.c, solib-dsbt.c, solib-frv.c, solib-ia64-hpux.c,
solib-irix.c, solib-pa64.c, solib-som.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, solib.c, spu-linux-nat.c,
spu-multiarch.c, spu-tdep.c, symfile-mem.c, symfile.c, symtab.c,
target-descriptions.c, target.c, target.h, tracepoint.c,
windows-nat.c, windows-tdep.c, xcoffsolib.c, cli/cli-dump.c,
common/agent.c, mi/mi-interp.c, python/py-finishbreakpoint.c,
python/py-inferior.c, python/python.c: Update.
2012-11-09 20:58:03 +01:00
|
|
|
|
return target_gdbarch ();
|
2009-07-02 19:06:44 +02:00
|
|
|
|
}
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
static int
|
2014-01-13 20:16:41 +01:00
|
|
|
|
return_zero (struct target_ops *ignore)
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
return_zero_has_execution (struct target_ops *ignore, ptid_t ignore2)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
1999-12-22 22:45:38 +01:00
|
|
|
|
/*
|
|
|
|
|
* Find the next target down the stack from the specified target.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
struct target_ops *
|
2000-07-30 03:48:28 +02:00
|
|
|
|
find_target_beneath (struct target_ops *t)
|
1999-12-22 22:45:38 +01:00
|
|
|
|
{
|
2003-10-17 15:59:27 +02:00
|
|
|
|
return t->beneath;
|
1999-12-22 22:45:38 +01:00
|
|
|
|
}
|
|
|
|
|
|
2013-10-28 19:16:24 +01:00
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
struct target_ops *
|
|
|
|
|
find_target_at (enum strata stratum)
|
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
|
|
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
|
|
|
|
if (t->to_stratum == stratum)
|
|
|
|
|
return t;
|
|
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
/* The inferior process has died. Long live the inferior! */
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
generic_mourn_inferior (void)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2008-09-22 17:16:51 +02:00
|
|
|
|
ptid_t ptid;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2008-09-22 17:16:51 +02:00
|
|
|
|
ptid = inferior_ptid;
|
2001-05-04 06:15:33 +02:00
|
|
|
|
inferior_ptid = null_ptid;
|
2008-09-22 17:16:51 +02:00
|
|
|
|
|
2012-03-02 20:26:10 +01:00
|
|
|
|
/* Mark breakpoints uninserted in case something tries to delete a
|
|
|
|
|
breakpoint while we delete the inferior's threads (which would
|
|
|
|
|
fail, since the inferior is long gone). */
|
|
|
|
|
mark_breakpoints_out ();
|
|
|
|
|
|
2008-09-22 17:16:51 +02:00
|
|
|
|
if (!ptid_equal (ptid, null_ptid))
|
|
|
|
|
{
|
|
|
|
|
int pid = ptid_get_pid (ptid);
|
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
Add base multi-executable/process support to GDB.
gdb/
* Makefile.in (SFILES): Add progspace.c.
(COMMON_OBS): Add progspace.o.
* progspace.h: New.
* progspace.c: New.
* breakpoint.h (struct bp_target_info) <placed_address_space>: New
field.
(struct bp_location) <pspace>: New field.
(struct breakpoint) <pspace>: New field.
(bpstat_stop_status, breakpoint_here_p)
(moribund_breakpoint_here_p, breakpoint_inserted_here_p)
(regular_breakpoint_inserted_here_p)
(software_breakpoint_inserted_here_p, breakpoint_thread_match)
(set_default_breakpoint): Adjust prototypes.
(remove_breakpoints_pid, breakpoint_program_space_exit): Declare.
(insert_single_step_breakpoint, deprecated_insert_raw_breakpoint):
Adjust prototypes.
* breakpoint.c (executing_startup): Delete.
(default_breakpoint_sspace): New.
(breakpoint_restore_shadows): Skip if the address space doesn't
match.
(update_watchpoint): Record the frame's program space in the
breakpoint location.
(insert_bp_location): Record the address space in target_info.
Adjust to pass the symbol space to solib_name_from_address.
(breakpoint_program_space_exit): New.
(insert_breakpoint_locations): Switch the symbol space and thread
when inserting breakpoints. Don't insert breakpoints in a vfork
parent waiting for vfork done if we're not attached to the vfork
child.
(remove_breakpoints_pid): New.
(reattach_breakpoints): Switch to a thread of PID. Ignore
breakpoints of other symbol spaces.
(create_internal_breakpoint): Store the symbol space in the sal.
(create_longjmp_master_breakpoint): Iterate over all symbol
spaces.
(update_breakpoints_after_exec): Ignore breakpoints for other
symbol spaces.
(remove_breakpoint): Rename to ...
(remove_breakpoint_1): ... this. Pass the breakpoints symbol
space to solib_name_from_address.
(remove_breakpoint): New.
(mark_breakpoints_out): Ignore breakpoints from other symbol
spaces.
(breakpoint_init_inferior): Ditto.
(breakpoint_here_p): Add an address space argument and adjust to
use breakpoint_address_match.
(moribund_breakpoint_here_p): Ditto.
(regular_breakpoint_inserted_here_p): Ditto.
(breakpoint_inserted_here_p): Ditto.
(software_breakpoint_inserted_here_p): Ditto.
(breakpoint_thread_match): Ditto.
(bpstat_check_location): Ditto.
(bpstat_stop_status): Ditto.
(print_breakpoint_location): If there's a location to print,
switch the current symbol space.
(print_one_breakpoint_location): Add `allflag' argument.
(print_one_breakpoint): Ditto. Adjust.
(do_captured_breakpoint_query): Adjust.
(breakpoint_1): Adjust.
(breakpoint_has_pc): Also match the symbol space.
(describe_other_breakpoints): Add a symbol space argument and
adjust.
(set_default_breakpoint): Add a symbol space argument. Set
default_breakpoint_sspace.
(breakpoint_address_match): New.
(check_duplicates_for): Add an address space argument, and adjust.
(set_raw_breakpoint): Record the symbol space in the location and
in the breakpoint.
(set_longjmp_breakpoint): Skip longjmp master breakpoints from
other symbol spaces.
(remove_thread_event_breakpoints, remove_solib_event_breakpoints)
(disable_breakpoints_in_shlibs): Skip breakpoints from other
symbol spaces.
(disable_breakpoints_in_unloaded_shlib): Match symbol spaces.
(create_catchpoint): Set the symbol space in the sal.
(disable_breakpoints_before_startup): Skip breakpoints from other
symbol spaces. Set executing_startup in the current symbol space.
(enable_breakpoints_after_startup): Clear executing_startup in the
current symbol space. Skip breakpoints from other symbol spaces.
(clone_momentary_breakpoint): Also copy the symbol space.
(add_location_to_breakpoint): Set the location's symbol space.
(bp_loc_is_permanent): Switch thread and symbol space.
(create_breakpoint): Adjust.
(expand_line_sal_maybe): Expand comment to mention symbol spaces.
Switch thread and symbol space when reading memory.
(parse_breakpoint_sals): Set the symbol space in the sal.
(break_command_really): Ditto.
(skip_prologue_sal): Switch and space.
(resolve_sal_pc): Ditto.
(watch_command_1): Record the symbol space in the sal.
(create_ada_exception_breakpoint): Adjust.
(clear_command): Adjust. Match symbol spaces.
(update_global_location_list): Use breakpoint_address_match.
(breakpoint_re_set_one): Switch thread and space.
(breakpoint_re_set): Save symbol space.
(breakpoint_re_set_thread): Also reset the symbol space.
(deprecated_insert_raw_breakpoint): Add an address space argument.
Adjust.
(insert_single_step_breakpoint): Ditto.
(single_step_breakpoint_inserted_here_p): Ditto.
(clear_syscall_counts): New.
(_initialize_breakpoint): Install it as inferior_exit observer.
* exec.h: Include "progspace.h".
(exec_bfd, exec_bfd_mtime): New defines.
(exec_close): Declare.
* exec.c: Include "gdbthread.h" and "progspace.h".
(exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete.
(using_exec_ops): New.
(exec_close_1): Rename to exec_close, and make public.
(exec_close): Rename to exec_close_1, and adjust all callers. Add
description. Remove target sections and close executables from
all program spaces.
(exec_file_attach): Add comment.
(add_target_sections): Check on `using_exec_ops' to check if the
target should be pushed.
(remove_target_sections): Only unpush the target if there are no
more target sections in any symbol space.
* gdbcore.h: Include "exec.h".
(exec_bfd, exec_bfd_mtime): Remove declarations.
* frame.h (get_frame_program_space, get_frame_address_space)
(frame_unwind_program_space): Declare.
* frame.c (struct frame_info) <pspace, aspace>: New fields.
(create_sentinel_frame): Add program space argument. Set the
pspace and aspace fields of the frame object.
(get_current_frame, create_new_frame): Adjust.
(get_frame_program_space): New.
(frame_unwind_program_space): New.
(get_frame_address_space): New.
* stack.c (print_frame_info): Adjust.
(print_frame): Use the frame's program space.
* gdbthread.h (any_live_thread_of_process): Declare.
* thread.c (any_live_thread_of_process): New.
(switch_to_thread): Switch the program space as well.
(restore_selected_frame): Don't warn if trying to restore frame
level 0.
* inferior.h: Include "progspace.h".
(detach_fork): Declare.
(struct inferior) <removable, aspace, pspace>
<vfork_parent, vfork_child, pending_detach>
<waiting_for_vfork_done>: New fields.
<terminal_info>: Remove field.
<data, num_data>: New fields.
(register_inferior_data, register_inferior_data_with_cleanup)
(clear_inferior_data, set_inferior_data, inferior_data): Declare.
(exit_inferior, exit_inferior_silent, exit_inferior_num_silent)
(inferior_appeared): Declare.
(find_inferior_pid): Typo.
(find_inferior_id, find_inferior_for_program_space): Declare.
(set_current_inferior, save_current_inferior, prune_inferiors)
(number_of_inferiors): Declare.
(inferior_list): Declare.
* inferior.c: Include "gdbcore.h" and "symfile.h".
(inferior_list): Make public.
(delete_inferior_1): Always delete thread silently.
(find_inferior_id): Make public.
(current_inferior_): New.
(current_inferior): Use it.
(set_current_inferior): New.
(restore_inferior): New.
(save_current_inferior): New.
(free_inferior): Free the per-inferior data.
(add_inferior_silent): Allocate per-inferior data.
Call inferior_appeared.
(delete_threads_of_inferior): New.
(delete_inferior_1): Adjust interface to take an inferior pointer.
(delete_inferior): Adjust.
(delete_inferior_silent): Adjust.
(exit_inferior_1): New.
(exit_inferior): New.
(exit_inferior_silent): New.
(exit_inferior_num_silent): New.
(detach_inferior): Adjust.
(inferior_appeared): New.
(discard_all_inferiors): Adjust.
(find_inferior_id): Make public. Assert pid is not zero.
(find_inferior_for_program_space): New.
(have_inferiors): Check if we have any inferior with pid not zero.
(have_live_inferiors): Go over all pushed targets looking for
process_stratum.
(prune_inferiors): New.
(number_of_inferiors): New.
(print_inferior): Add executable column. Print vfork parent/child
relationships.
(inferior_command): Adjust to cope with not running inferiors.
(remove_inferior_command): New.
(add_inferior_command): New.
(clone_inferior_command): New.
(struct inferior_data): New.
(struct inferior_data_registration): New.
(struct inferior_data_registry): New.
(inferior_data_registry): New.
(register_inferior_data_with_cleanup): New.
(register_inferior_data): New.
(inferior_alloc_data): New.
(inferior_free_data): New.
(clear_inferior_data): New.
(set_inferior_data): New.
(inferior_data): New.
(initialize_inferiors): New.
(_initialize_inferiors): Register "add-inferior",
"remove-inferior" and "clone-inferior" commands.
* objfiles.h: Include "progspace.h".
(struct objfile) <pspace>: New field.
(symfile_objfile, object_files): Don't declare.
(ALL_PSPACE_OBJFILES): New.
(ALL_PSPACE_OBJFILES_SAFE): New.
(ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust.
(ALL_PSPACE_SYMTABS): New.
(ALL_PRIMARY_SYMTABS): Adjust.
(ALL_PSPACE_PRIMARY_SYMTABS): New.
(ALL_PSYMTABS): Adjust.
(ALL_PSPACE_PSYMTABS): New.
* objfiles.c (object_files, symfile_objfile): Delete.
(struct objfile_sspace_info): New.
(objfiles_pspace_data): New.
(objfiles_pspace_data_cleanup): New.
(get_objfile_pspace_data): New.
(objfiles_changed_p): Delete.
(allocate_objfile): Set the objfile's program space. Adjust to
reference objfiles_changed_p in pspace data.
(free_objfile): Adjust to reference objfiles_changed_p in pspace
data.
(objfile_relocate): Ditto.
(update_section_map): Add pspace argument. Adjust to iterate over
objfiles in the passed in pspace.
(find_pc_section): Delete sections and num_sections statics.
Adjust to refer to program space's objfiles_changed_p. Adjust to
refer to sections and num_sections store in the objfile's pspace
data.
(objfiles_changed): Adjust to reference objfiles_changed_p in
pspace data.
(_initialize_objfiles): New.
* linespec.c (decode_all_digits, decode_dollar): Set the sal's
program space.
* source.c (current_source_pspace): New.
(get_current_source_symtab_and_line): Set the sal's program space.
(set_current_source_symtab_and_line): Set current_source_pspace.
(select_source_symtab): Ditto. Use ALL_OBJFILES.
(forget_cached_source_info): Iterate over all program spaces.
* symfile.c (clear_symtab_users): Adjust.
* symmisc.c (print_symbol_bcache_statistics): Iterate over all
program spaces.
(print_objfile_statistics): Ditto.
(maintenance_print_msymbols): Ditto.
(maintenance_print_objfiles): Ditto.
(maintenance_info_symtabs): Ditto.
(maintenance_info_psymtabs): Ditto.
* symtab.h (SYMTAB_PSPACE): New.
(struct symtab_and_line) <pspace>: New field.
* symtab.c (init_sal): Clear the sal's program space.
(find_pc_sect_symtab): Set the sal's program space. Switch thread
and space.
(append_expanded_sal): Add program space argument. Iterate over
all program spaces.
(expand_line_sal): Iterate over all program spaces. Switch
program space.
* target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New.
(struct target_ops) <to_thread_address_space>: New field.
(target_thread_address_space): Define.
* target.c (target_detach): Only remove breakpoints from the
inferior we're detaching.
(target_thread_address_space): New.
* defs.h (initialize_progspace): Declare.
* top.c (gdb_init): Call it.
* solist.h (struct so_list) <sspace>: New field.
* solib.h (struct program_space): Forward declare.
(solib_name_from_address): Adjust prototype.
* solib.c (so_list_head): Replace with a macro referencing the
program space.
(update_solib_list): Set the so's program space.
(solib_name_from_address): Add a program space argument and adjust.
* solib-svr4.c (struct svr4_info) <pid>: Delete field.
<interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low>
<interp_plt_sect_high>: New fields.
(svr4_info_p, svr4_info): Delete.
(solib_svr4_sspace_data): New.
(get_svr4_info): Rewrite.
(svr4_sspace_data_cleanup): New.
(open_symbol_file_object): Adjust.
(svr4_default_sos): Adjust.
(svr4_fetch_objfile_link_map): Adjust.
(interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low)
(interp_plt_sect_high): Delete.
(svr4_in_dynsym_resolve_code): Adjust.
(enable_break): Adjust.
(svr4_clear_solib): Revert bit that removed the svr4_info here,
and reinstate clearing debug_base, debug_loader_offset_p,
debug_loader_offset and debug_loader_name.
(_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't
install an inferior_exit observer anymore.
* printcmd.c (struct display) <pspace>: New field.
(display_command): Set the display's sspace.
(do_one_display): Match the display's sspace.
(display_uses_solib_p): Ditto.
* linux-fork.c (detach_fork): Moved to infrun.c.
(_initialize_linux_fork): Moved "detach-on-fork" command to
infrun.c.
* infrun.c (detach_fork): Moved from linux-fork.c.
(proceed_after_vfork_done): New.
(handle_vfork_child_exec_or_exit): New.
(follow_exec_mode_replace, follow_exec_mode_keep)
(follow_exec_mode_names, follow_exec_mode_string)
(show_follow_exec_mode_string): New.
(follow_exec): New. Reinstate the mark_breakpoints_out call.
Remove shared libraries before attaching new executable. If user
wants to keep the inferior, keep it.
(displaced_step_fixup): Adjust to pass an address space to the
breakpoints module.
(resume): Ditto.
(clear_proceed_status): In all-stop mode, always clear the proceed
status of all threads.
(prepare_to_proceed): Adjust to pass an address space to the
breakpoints module.
(proceed): Ditto.
(adjust_pc_after_break): Ditto.
(handle_inferior_event): When handling a process exit, switch the
program space to the inferior's that had exited. Call
handle_vfork_child_exec_or_exit. Adjust to pass an address space
to the breakpoints module. In non-stop mode, when following a
fork and detach-fork is off, also resume the other branch. Handle
TARGET_WAITKIND_VFORK_DONE. Set the program space in sals.
(normal_stop): Prune inferiors.
(_initialize_infrun): Install the new "follow-exec-mode" command.
"detach-on-fork" moved here.
* regcache.h (get_regcache_aspace): Declare.
* regcache.c (struct regcache) <aspace>: New field.
(regcache_xmalloc): Clear the aspace.
(get_regcache_aspace): New.
(regcache_cpy): Copy the aspace field.
(regcache_cpy_no_passthrough): Ditto.
(get_thread_regcache): Fetch the thread's address space from the
target, and store it in the regcache.
* infcall.c (call_function_by_hand): Set the sal's pspace.
* arch-utils.c (default_has_shared_address_space): New.
* arch-utils.h (default_has_shared_address_space): Declare.
* gdbarch.sh (has_shared_address_space): New.
* gdbarch.h, gdbarch.c: Regenerate.
* linux-tdep.c: Include auxv.h, target.h, elf/common.h.
(linux_has_shared_address_space): New.
(_initialize_linux_tdep): Declare.
* arm-tdep.c (arm_software_single_step): Pass the frame's address
space to insert_single_step_breakpoint.
* arm-linux-tdep.c (arm_linux_software_single_step): Pass the
frame's pspace to breakpoint functions.
* cris-tdep.c (crisv32_single_step_through_delay): Ditto.
(cris_software_single_step): Ditto.
* mips-tdep.c (deal_with_atomic_sequence): Add frame argument.
Pass the frame's pspace to breakpoint functions.
(mips_software_single_step): Adjust.
(mips_single_step_through_delay): Adjust.
* rs6000-aix-tdep.c (rs6000_software_single_step): Adjust.
* rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust.
* solib-irix.c (enable_break): Adjust to pass the current frame's
address space to breakpoint functions.
* sparc-tdep.c (sparc_software_single_step): Ditto.
* spu-tdep.c (spu_software_single_step): Ditto.
* alpha-tdep.c (alpha_software_single_step): Ditto.
* record.c (record_wait): Adjust to pass an address space to the
breakpoints module.
* fork-child.c (fork_inferior): Set the new inferior's program and
address spaces.
* inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program
and address spaces.
(inf_ptrace_attach): Set the inferior's program and address spaces.
* linux-nat.c: Include "solib.h".
(linux_child_follow_fork): Manage parent and child's program and
address spaces. Clone the parent's program space if necessary.
Don't wait for the vfork to be done here. Refuse to resume if
following the vfork parent while leaving the child stopped.
(resume_callback): Don't resume a vfork parent.
(linux_nat_resume): Also check for pending events in the
lp->waitstatus field.
(linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE
events to the core.
(stop_wait_callback): Don't wait for SIGSTOP on vfork parents.
(cancel_breakpoint): Adjust.
* linux-thread-db.c (thread_db_wait): Don't remove thread event
breakpoints here.
(thread_db_mourn_inferior): Don't mark breakpoints out here.
Remove thread event breakpoints after mourning.
* corelow.c: Include progspace.h.
(core_open): Set the inferior's program and address spaces.
* remote.c (remote_add_inferior): Set the new inferior's program
and address spaces.
(remote_start_remote): Update address spaces.
(extended_remote_create_inferior_1): Don't init the thread list if
we already debugging other inferiors.
* darwin-nat.c (darwin_attach): Set the new inferior's program and
address spaces.
* gnu-nat.c (gnu_attach): Ditto.
* go32-nat.c (go32_create_inferior): Ditto.
* inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto.
* monitor.c (monitor_open): Ditto.
* nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto.
* procfs.c (do_attach): Ditto.
* windows-nat.c (do_initial_windows_stuff): Ditto.
* inflow.c (inferior_process_group)
(terminal_init_inferior_with_pgrp, terminal_inferior,
(terminal_ours_1, inflow_inferior_exit, copy_terminal_info)
(child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust
to use per-inferior data instead of inferior->terminal_info.
(inflow_inferior_data): New.
(inflow_new_inferior): Delete.
(inflow_inferior_data_cleanup): New.
(get_inflow_inferior_data): New.
* mi/mi-interp.c (mi_new_inferior): Rename to...
(mi_inferior_appeared): ... this.
(mi_interpreter_init): Adjust.
* tui/tui-disasm.c: Include "progspace.h".
(tui_set_disassem_content): Pass an address space to
breakpoint_here_p.
* NEWS: Mention multi-program debugging support. Mention new
commands "add-inferior", "clone-inferior", "remove-inferior",
"maint info program-spaces", and new option "set
follow-exec-mode".
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/doc/
* observer.texi (new_inferior): Rename to...
(inferior_appeared): ... this.
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/testsuite/
* gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork".
* gdb.base/foll-exec.exp: Adjust to expect a process id before
"Executing new program".
* gdb.base/foll-fork.exp: Adjust to spell out "follow-fork".
* gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being
left listed after having been killed.
* gdb.base/attach.exp: Adjust to spell out "symbol-file".
* gdb.base/maint.exp: Adjust test.
* Makefile.in (ALL_SUBDIRS): Add gdb.multi.
* gdb.multi/Makefile.in: New.
* gdb.multi/base.exp: New.
* gdb.multi/goodbye.c: New.
* gdb.multi/hangout.c: New.
* gdb.multi/hello.c: New.
* gdb.multi/bkpt-multi-exec.c: New.
* gdb.multi/bkpt-multi-exec.exp: New.
* gdb.multi/crashme.c: New.
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/doc/
* gdb.texinfo (Inferiors): Rename node to ...
(Inferiors and Programs): ... this. Mention running multiple
programs in the same debug session.
<info inferiors>: Mention the new 'Executable' column if "info
inferiors". Update examples. Document the "add-inferior",
"clone-inferior", "remove-inferior" and "maint info
program-spaces" commands.
(Process): Rename node to...
(Forks): ... this. Document "set|show follow-exec-mode".
2009-10-19 11:51:43 +02:00
|
|
|
|
exit_inferior (pid);
|
2008-09-22 17:16:51 +02:00
|
|
|
|
}
|
|
|
|
|
|
2012-03-02 20:26:10 +01:00
|
|
|
|
/* Note this wipes step-resume breakpoints, so needs to be done
|
|
|
|
|
after exit_inferior, which ends up referencing the step-resume
|
|
|
|
|
breakpoints through clear_thread_inferior_resources. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
breakpoint_init_inferior (inf_exited);
|
2012-03-02 20:26:10 +01:00
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
registers_changed ();
|
|
|
|
|
|
|
|
|
|
reopen_exec_file ();
|
|
|
|
|
reinit_frame_cache ();
|
|
|
|
|
|
2004-04-21 Andrew Cagney <cagney@redhat.com>
* annotate.h (deprecated_annotate_starting_hook)
(deprecated_annotate_stopped_hook)
(deprecated_annotate_exited_hook)
(deprecated_annotate_signal_hook)
(deprecated_annotate_signalled_hook): Deprecate.
* tracepoint.h (deprecated_create_tracepoint_hook)
(deprecated_delete_tracepoint_hook)
(deprecated_modify_tracepoint_hook)
(deprecated_trace_find_hook)
(deprecated_trace_start_stop_hook): Deprecate.
* target.h (deprecated_target_new_objfile_hook): Deprecate.
* remote.h (deprecated_target_resume_hook)
(deprecated_target_wait_loop_hook): Deprecate.
* gdbcore.h (deprecated_exec_file_display_hook)
(deprecated_file_changed_hook): Deprecate.
* frame.h (deprecated_selected_frame_level_changed_hook): Deprecate.
* defs.h (deprecated_modify_breakpoint_hook)
(deprecated_command_loop_hook, deprecated_show_load_progress)
(deprecated_print_frame_info_listing_hook)
(deprecated_query_hook, deprecated_warning_hook)
(deprecated_flush_hook, deprecated_create_breakpoint_hook)
(deprecated_delete_breakpoint_hook)
(deprecated_interactive_hook, deprecated_registers_changed_hook)
(deprecated_readline_begin_hook, deprecated_readline_hook)
(deprecated_readline_end_hook, deprecated_register_changed_hook)
(deprecated_memory_changed_hook, deprecated_init_ui_hook)
(deprecated_context_hook, deprecated_target_wait_hook)
(deprecated_attach_hook, deprecated_detach_hook)
(deprecated_call_command_hook, deprecated_set_hook)
(deprecated_error_hook, deprecated_error_begin_hook)
(deprecated_ui_load_progress_hook): Deprecate.
* valops.c, uw-thread.c, utils.c, tui/tui-io.c: Update.
* tui/tui-hooks.c, tracepoint.c, top.c, thread-db.c: Update.
* target.c, symfile.c, stack.c, sol-thread.c, rs6000-nat.c: Update.
* remote.c, remote-mips.c, regcache.c, mi/mi-interp.c: Update.
* main.c, interps.c, infcmd.c, hpux-thread.c, frame.c: Update.
* exec.c, dsrec.c, d10v-tdep.c, corefile.c, complaints.c: Update.
* cli/cli-script.c, cli/cli-setshow.c, breakpoint.c: Update.
* annotate.c, aix-thread.c: Update.
2004-04-22 01:52:21 +02:00
|
|
|
|
if (deprecated_detach_hook)
|
|
|
|
|
deprecated_detach_hook ();
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
2005-03-13 23:06:10 +01:00
|
|
|
|
/* Convert a normal process ID to a string. Returns the string in a
|
|
|
|
|
static buffer. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
char *
|
2001-05-04 06:15:33 +02:00
|
|
|
|
normal_pid_to_str (ptid_t ptid)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2005-03-13 23:06:10 +01:00
|
|
|
|
static char buf[32];
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2005-07-18 23:00:50 +02:00
|
|
|
|
xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid));
|
1999-04-16 03:35:26 +02:00
|
|
|
|
return buf;
|
|
|
|
|
}
|
|
|
|
|
|
2008-02-21 Pedro Alves <pedro@codesorcery.com>
Silence a few -Wmissing-prototypes warnings.
PR build/9877:
* amd64-nat.c: Include "amd64-nat.h".
* fork-child.c (_initialize_fork_child): Ditto.
* gcore.c (_initialize_gcore): Ditto.
* inf-ptrace.c: Include "inf-ptrace.h".
(inf_ptrace_store_registers): Make it static.
* linux-nat.c (linux_nat_terminal_ours): Make it static.
(_initialize_linux_nat): Declare before definition.
* linux-tdep.c: Include "linux-tdep.h".
* linux-thread-db.c (_initialize_thread_db): Declare before
definition.
* proc-service.c (_initialize_proc_service): Ditto.
* remote.c (remote_send_printf): Make it static.
* solib.c: Include "solib.h".
* symfile-mem.c (_initialize_symfile_mem): Declare before
definition.
* ada-lang.c (ada_la_decode, ada_match_name)
(ada_suppress_symbol_printing, ada_is_array_type)
(ada_value_ptr_subscript, ada_array_length)
(ada_to_static_fixed_value): Make them static.
(_initialize_ada_language): Declare before definition.
* ada-tasks.c (ada_get_task_number, ada_get_environment_task)
(ada_task_list_changed, ada_new_objfile_observer): Make them
static.
(_initialize_tasks): Declare before definition.
* addrmap.c (_initialize_addrmap): Declare before definition.
* auxv.c (default_auxv_parse): Make it static.
* bfd-target.c (target_bfd_xfer_partial, target_bfd_xclose): Make
them static.
* breakpoint.c (remove_sal): Add line break.
(expand_line_sal_maybe): Make it static.
* cp-name-parser.y: Include "cp-support.h".
* cp-valprint.c (cp_find_class_member): Make it static.
* eval.c (value_f90_subarray): Ditto.
* exceptions.c (print_any_exception): Ditto.
* findcmd.c (_initialize_mem_search): Declare before definition.
* frame.c (frame_observer_target_changed): Make it static.
* gnu-v3-abi.c (gnuv3_find_method_in): Make it static.
* inf-child.c: Include "inf-child.h".
* inferior.h (valid_inferior_id): Rename to ...
(valid_gdb_inferior_id): ... this.
* infrun.c (infrun_thread_stop_requested, siginfo_make_value):
Make them static.
* jv-lang.c (java_language_arch_info): Make it static.
* m2-typeprint.c (m2_get_discrete_bounds): Ditto.
* osdata.c (info_osdata_command): Make it static.
* regcache.c (regcache_observer_target_changed): Make it static.
* reverse.c (_initialize_reverse): Declare before definition.
* stabsread.c (cleanup_undefined_types_noname)
(cleanup_undefined_types_1): Make them static.
* symfile.c (place_section): Make it static.
* symtab.c (find_pc_sect_psymtab_closer): Make it static.
* target-descriptions.c (_initialize_target_descriptions): Declare
before definition.
* target.c (default_get_ada_task_ptid, find_default_can_async_p)
(find_default_is_async_p, find_default_supports_non_stop): Make
them static.
(target_supports_non_stop): Add prototype.
(dummy_pid_to_str): Make it static.
* utils.c (_initialize_utils): Declare before definition.
* ada-exp.y (_initialize_ada_exp): Declare before definition.
* solib-svr4.c (HAS_LM_DYNAMIC_FROM_LINK_MAP): Add a prototype.
* target.h (struct target_ops): Add a prototype to the
to_can_execute_reverse callback.
* macroscope.c (_initialize_macroscope): Declare before definition.
* cp-namespace.c (_initialize_cp_namespace): Declare before definition.
* python/python.c (_initialize_python): Declare before definition.
* tui/tui-command.c: Include "tui/tui-command.h".
* tui/tui-data.c (init_content_element, init_win_info): Make them
static.
* tui/tui-disasm.c: Include "tui/tui-disasm.h".
* tui/tui-interp.c (_initialize_tui_interp): Declare before
definition.
* tui/tui-layout.c: Include "tui/tui-layout.h".
(_initialize_tui_layout): Declare before definition.
* tui/tui-regs.c: Include "tui/tui-regs.h".
(tui_display_reg_element_at_line): Make it static.
(_initialize_tui_regs): Declare before definition.
* tui/tui-stack.c (_initialize_tui_stack): Declare before
definition.
* tui/tui-win.c: Include "tui/tui-win.h".
(_initialize_tui_win): Declare before definition.
(tui_sigwinch_handler): Make it static. Wrap in ifdef SIGWINCH.
* tui/tui-win.h (tui_sigwinch_handler): Delete declaration.
(tui_get_cmd_list): Add a prototype.
* tui/tui-windata.c: Include tui-windata.h.
* tui/tui-wingeneral.c (box_win): Make it static.
* cli/cli-logging.c (show_logging_command): Make it static.
(_initialize_cli_logging): Declare before definition.
* mi/mi-common.c (_initialize_gdb_mi_common): Declare before
definition.
2009-02-21 17:14:50 +01:00
|
|
|
|
static char *
|
2013-12-18 22:46:03 +01:00
|
|
|
|
default_pid_to_str (struct target_ops *ops, ptid_t ptid)
|
* linux-nat.c (linux_nat_wait): Adjust.
(linux_nat_pid_to_str): Adjust. Remove call to thread_db_init.
* linux-nat.h (thread_db_init): Delete declaration.
* linux-thread-db.c (target_beneath): Delete.
(thread_db_init): Delete.
(thread_db_detach): Use find_target_beneath.
(thread_db_wait): Adjust interface. Use find_target_beneath.
(thread_db_mourn_inferior): Use find_target_beneath.
(thread_db_can_async_p, thread_db_is_async_p, thread_db_async)
(thread_db_async_mask): Delete.
(thread_db_pid_to_str): Adjust interface. Use
find_target_beneath.
(thread_db_get_thread_local_address): Adjust interface. Use
find_target_beneath.
(init_thread_db_ops): Delete references to delete functions.
* target.c (update_current_target): Don't inherit or default
to_wait. Don't inherit to_pid_to_str and
to_get_thread_local_address.
(target_translate_tls_address): Look for a pushed target that
implements to_get_thread_local_address, and use it instead of
checking for target_get_thread_local_address_p.
(target_wait, target_pid_to_str): Reimplement as functions.
(dummy_pid_to_str): New.
(init_dummy_target): Register it.
(debug_to_wait): Delete.
* target.h (struct target_ops): Make to_wait, to_pid_to_str and
to_get_thread_local_address accept a pointer to struct target_ops.
(target_wait): Delete macro, and declare as function.
(target_pid_to_str): Likewise.
(target_get_thread_local_address)
(target_get_thread_local_address_p): Delete.
(noprocess): Add NORETURN and ATTR_NORETURN tags.
* inf-ptrace.c (inf_ptrace_wait): Adjust.
(inf_ptrace_pid_to_str): New.
(inf_ptrace_target): Use inf_ptrace_pid_to_str.
* aix-thread.c (aix_thread_wait, aix_thread_pid_to_str): Adjust.
* bsd-kvm.c (bsd_kvm_pid_to_str): Adjust.
* bsd-uthread.c (bsd_uthread_wait, bsd_uthread_pid_to_str):
Adjust.
* corelow.c (core_pid_to_str): Adjust.
* darwin-nat.c (darwin_wait, darwin_pid_to_str): Adjust.
* dec-thread.c (dec_thread_wait, dec_thread_pid_to_str): Adjust.
* gnu-nat.c (gnu_wait, gnu_pid_to_str): Adjust.
* go32-nat.c (go32_wait, go32_pid_to_str): Adjust.
* hpux-thread.c (hpux_thread_wait): Adjust.
* inf-ttrace.c (inf_ttrace_wait, inf_ttrace_pid_to_str): Adjust.
* monitor.c (monitor_wait, monitor_pid_to_str): Adjust.
* nto-procfs.c (procfs_wait, procfs_pid_to_str): Adjust.
* procfs.c (procfs_pid_to_str): Adjust.
* remote-m32r-sdi.c (m32r_wait, m32r_pid_to_str): Adjust.
* remote-mips.c (mips_wait): Adjust.
* remote-sim.c (gdbsim_wait, gdbsim_pid_to_str): Adjust.
* remote.c (remote_wait, remote_pid_to_str)
(remote_get_thread_local_address): Adjust.
* rs6000-nat.c (rs6000_wait): Adjust.
* sol-thread.c (procfs_pid_to_str): Adjust declaration.
(sol_thread_wait, solaris_pid_to_str): Adjust.
* spu-linux-nat.c (spu_child_wait): Adjust.
* windows-nat.c (windows_wait, windows_pid_to_str): Adjust.
2009-02-06 23:21:26 +01:00
|
|
|
|
{
|
|
|
|
|
return normal_pid_to_str (ptid);
|
|
|
|
|
}
|
|
|
|
|
|
2009-10-26 19:30:39 +01:00
|
|
|
|
/* Error-catcher for target_find_memory_regions. */
|
|
|
|
|
static int
|
2013-12-18 05:35:39 +01:00
|
|
|
|
dummy_find_memory_regions (struct target_ops *self,
|
|
|
|
|
find_memory_region_ftype ignore1, void *ignore2)
|
2002-01-09 01:37:02 +01:00
|
|
|
|
{
|
2009-10-26 19:30:39 +01:00
|
|
|
|
error (_("Command not implemented for this target."));
|
2002-01-09 01:37:02 +01:00
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2009-10-26 19:30:39 +01:00
|
|
|
|
/* Error-catcher for target_make_corefile_notes. */
|
|
|
|
|
static char *
|
2013-12-18 05:35:52 +01:00
|
|
|
|
dummy_make_corefile_notes (struct target_ops *self,
|
|
|
|
|
bfd *ignore1, int *ignore2)
|
2002-01-09 01:37:02 +01:00
|
|
|
|
{
|
2009-10-26 19:30:39 +01:00
|
|
|
|
error (_("Command not implemented for this target."));
|
2002-01-09 01:37:02 +01:00
|
|
|
|
return NULL;
|
|
|
|
|
}
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
/* Set up the handful of non-empty slots needed by the dummy target
|
|
|
|
|
vector. */
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
init_dummy_target (void)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
dummy_target.to_shortname = "None";
|
|
|
|
|
dummy_target.to_longname = "None";
|
|
|
|
|
dummy_target.to_doc = "";
|
2011-10-07 14:06:48 +02:00
|
|
|
|
dummy_target.to_supports_disable_randomization
|
|
|
|
|
= find_default_supports_disable_randomization;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
dummy_target.to_stratum = dummy_stratum;
|
2014-01-13 20:16:41 +01:00
|
|
|
|
dummy_target.to_has_all_memory = return_zero;
|
|
|
|
|
dummy_target.to_has_memory = return_zero;
|
|
|
|
|
dummy_target.to_has_stack = return_zero;
|
|
|
|
|
dummy_target.to_has_registers = return_zero;
|
|
|
|
|
dummy_target.to_has_execution = return_zero_has_execution;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
dummy_target.to_magic = OPS_MAGIC;
|
2013-12-19 17:38:11 +01:00
|
|
|
|
|
|
|
|
|
install_dummy_methods (&dummy_target);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
2003-10-22 23:39:09 +02:00
|
|
|
|
void
|
2013-03-20 16:46:24 +01:00
|
|
|
|
target_close (struct target_ops *targ)
|
2003-10-22 23:39:09 +02:00
|
|
|
|
{
|
remove pop_target
This patch fixes the target double-close problem (PR remote/15266),
and in the process removes pop_target entire (PR remote/15256).
The first issue is that pop_target calls target_close. However, it
then calls unpush_target, which also calls target_close. This means
targets must be able to be closed twice. Not only is this strange,
but it also directly contradicts the contract of to_xclose targets.
(We currently have just a single such target, and it is never pushed;
but I plan to add more, and so this latent bug is triggered.)
The second issue is that it seems to me that calling pop_target is
often unsafe. This is what cropped up in 15256, where the remote
target assumed that it could pop_target -- but there was another
target higher on the stack, leading to confusion.
But, it is always just as easy to call unpush_target as it is to call
pop_target; and it is also safer. So, removing pop_target seemed like
an improvement.
Finally, this adds an assertion to target_close to ensure that no
currently-pushed target can be closed.
Built and regtested on x86-64 Fedora 18; both natively and using the
native-gdbserver board file.
PR remote/15256, PR remote/15266:
* bfd-target.c (target_bfd_reopen): Initialize to_magic.
* monitor.c (monitor_detach): Use unpush_target.
* remote-m32r-sdi.c (m32r_detach): Use unpush_target.
* remote-mips.c (mips_detach): Use unpush_target. Don't
call mips_close.
* remote-sim.c (gdbsim_detach): Use unpush_target.
* target.c (pop_target): Remove.
(pop_all_targets_above): Don't call target_close.
(target_close): Assert that the target is unpushed.
* target.h (pop_target): Don't declare.
* tracepoint.c (tfile_open): Use unpush_target.
2013-07-25 16:34:51 +02:00
|
|
|
|
gdb_assert (!target_is_pushed (targ));
|
|
|
|
|
|
2003-10-22 23:39:09 +02:00
|
|
|
|
if (targ->to_xclose != NULL)
|
2013-03-20 16:46:24 +01:00
|
|
|
|
targ->to_xclose (targ);
|
2003-10-22 23:39:09 +02:00
|
|
|
|
else if (targ->to_close != NULL)
|
2013-12-18 05:27:56 +01:00
|
|
|
|
targ->to_close (targ);
|
2009-02-06 01:27:58 +01:00
|
|
|
|
|
|
|
|
|
if (targetdebug)
|
2013-03-20 16:46:24 +01:00
|
|
|
|
fprintf_unfiltered (gdb_stdlog, "target_close ()\n");
|
2003-10-22 23:39:09 +02:00
|
|
|
|
}
|
|
|
|
|
|
* corelow.c (get_core_registers): Adjust.
(core_file_thread_alive): Rename to...
(core_thread_alive): ... this.
(core_pid_to_str): Try gdbarch_core_pid_to_str first.
(init_core_ops): Adjust.
(coreops_suppress_target): Delete.
(_initialize_corelow): Unconditionally add core_ops.
* procfs.c: Include "inf-child.h".
(procfs_ops): Delete.
(init_procfs_ops): Delete. Reimplement as...
(procfs_target): ... this, inheriting from inf-child.
(procfs_attach, procfs_detach, procfs_fetch_registers): Adjust.
(procfs_prepare_to_store): Delete.
(procfs_store_registers, procfs_resume): Adjust.
(procfs_open): Delete.
(procfs_suppress_run): Delete.
(procfs_can_run): Delete.
(procfs_mourn_inferior): Adjust.
(procfs_init_inferior): Add target_ops parameter. Adjust.
(procfs_create_inferior): Don't pass procfs_init_inferior to
fork_inferior. Instead call it after fork_inferior returns.
(procfs_find_new_threads): Adjust.
(_initialize_procfs): Adjust to use procfs_target instead of
init_procfs_ops.
* sol-thread.c (orig_core_ops, sol_core_ops): Delete.
(lwp_to_thread): Use target_thread_alive.
(sol_thread_open): Delete.
(sol_thread_attach): Delete.
(sol_thread_detach, sol_thread_resume, sol_thread_wait)
(sol_thread_fetch_registers, sol_thread_store_registers): Adjust
to use find_target_beneath.
(sol_thread_prepare_to_store, sol_thread_xfer_memory): Delete.
(sol_thread_xfer_partial): Adjust to use find_target_beneath.
(sol_thread_files_info, sol_thread_kill_inferior): Delete.
(check_for_thread_db): New.
(sol_thread_notice_signals, sol_thread_create_inferior): Delete.
(sol_thread_new_objfile): Call check_for_thread_db.
(sol_thread_mourn_inferior): Adjust to use find_target_beneath.
(sol_thread_can_run): Delete.
(sol_thread_alive): Adjust to use find_target_beneath.
(sol_thread_stop): Delete.
(rw_common): Use target_write_memory or target_read_memory.
(ps_lgetregs, ps_lgetfpregs): Use target_fetch_registers.
(ps_lsetregs, ps_lsetfpregs): Use target_store_registers.
(solaris_pid_to_str): Remove check for libthread_db initialization
failing.
(sol_find_new_threads): Remove check for libthread_db
initialization failing, or for an invalid inferior_ptid. Adjust
to use find_target_beneath.
(sol_core_open, sol_core_close, sol_core_detach,
sol_core_files_info, sol_find_memory_regions,
sol_make_note_section, ignore): Delete.
(init_sol_thread_ops): Make it a thread_stratum target. Remove
unneeded callback settings.
(init_sol_core_ops): Delete.
(_initialize_sol_thread): No longer call init_sol_core_ops, set
procfs_suppress_run, or hack with core_ops.
* target.h (struct target_ops): Add a target_ops * parameter to
to_resume, to_fetch_registers, to_store_registers, to_thread_alive
and to_find_new_threads.
(target_fetch_registers, target_store_registers)
(target_thread_alive, target_find_new_threads): Redeclare as
function.
* target.c (update_current_target): Do not inherit or de_fault
to_resume, to_fetch_registers, to_store_registers,
to_thread_alive, to_find_new_threads.
(target_resume): Adjust.
(target_thread_alive, target_find_new_threads): New.
(debug_to_resume, debug_to_fetch_registers): Delete.
(target_fetch_registers): New.
(debug_to_store_registers): Delete.
(target_store_registers): New.
(debug_to_thread_alive, debug_to_find_new_threads): Delete.
(setup_target_debug): Adjust.
* gdbcore.h (core_ops): Delete declaration.
* inf-ptrace.c, linux-nat.c, remote.c, amd64-linux-nat.c,
inf-child.c, linux-thread-db.c, bsd-uthread.c, inf-ttrace.c,
i386-sol2-tdep.c, darwin-nat.c, gnu-nat.c, go32-nat.c,
hpux-thread.c, i386-linux-nat.c, i386fbsd-nat.c, monitor.c,
nto-procfs.c, remote-m32r-sdi.c, remote-mips.c, windows-nat.c,
alphabsd-nat.c, amd64bsd-nat.c, arm-linux-nat.c, armnbsd-nat.c,
bsd-kvm.c, hppa-hpux-nat.c, hppa-linux-nat.c, hppabsd-nat.c,
hppanbsd-nat.c, i386-darwin-nat.c, i386bsd-nat.c,
ia64-linux-nat.c, m32r-linux-nat.c, m68kbsd-nat.c,
m68klinux-nat.c, m88kbsd-nat.c, mips-linux-nat.c,
mips64obsd-nat.c, mipsnbsd-nat.c, ppc-linux-nat.c, ppcnbsd-nat.c,
ppcobsd-nat.c, remote-sim.c, rs6000-nat.c, s390-nat.c,
shnbsd-nat.c, sparc-nat.c, sparc-nat.h, spu-linux-nat.c,
vaxbsd-nat.c, xtensa-linux-nat.c: Adjust to target_ops changes.
* gdbarch.sh (core_pid_to_str): New gdbarch callback.
* gdbarch.h, gdbarch.c: Regenerate.
* sol2-tdep.c: Include "inferior.h".
(sol2_core_pid_to_str): New.
* sol2-tdep.h (sol2_core_pid_to_str): Declare.
* amd64-sol2-tdep.c (amd64_sol2_init_abi): Set it.
* sparc-sol2-tdep.c (sparc32_sol2_init_abi): Set it.
* sparc64-sol2-tdep.c (sparc64_sol2_init_abi): Set it.
* i386-sol2-tdep.c (i386_sol2_init_abi): Set it.
2009-02-23 01:03:50 +01:00
|
|
|
|
int
|
|
|
|
|
target_thread_alive (ptid_t ptid)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
auto-generate most target debug methods
The target debug methods are inconsistently maintained. Most to_*
methods have some kind of targetdebug awareness, but not all of them
do. The ones that do vary in the quantity and quality of output they
generate.
This patch changes most of the target debug methods to be
automatically generated. All the arguments are printed, and separate
lines are printed for entering and existing the outermost call to the
target stack.
For example now you'd see:
-> multi-thread->to_terminal_ours (...)
-> multi-thread->to_is_async_p (...)
<- multi-thread->to_is_async_p (0x1ebb580) = 1
<- multi-thread->to_terminal_ours (0x1ebb580)
-> multi-thread->to_thread_address_space (...)
<- multi-thread->to_thread_address_space (0x1ebb580, 26802) = 1
In this case you can see nested calls. The "multi-thread" on the left
hand side is the topmost target's shortname.
There are some oddities with this patch. I'm on the fence about it
all, I really just wrote it on a whim.
It's not simple to convert every possible method, since a few don't
participate in target delegation.
Printing is done by type, so I introduced some new
debug-printing-specific typedefs to handle cases where it is nicer to
do something else.
On the plus side, this lays the groundwork for making targetdebug
affect every layer of the target stack. The idea would be to wrap
each target_ops in the stack with its own debug_target, and then you
could see calls propagate down the stack and back up; I suppose with
indentation to make it prettier. (That said there are some gotchas
lurking in this idea due to target stack introspection.)
Regtested on x86-64 Fedora 20.
2014-07-24 Tom Tromey <tromey@redhat.com>
* make-target-delegates (munge_type, write_debugmethod): New
functions.
(debug_names): New global.
($TARGET_DEBUG_PRINTER): New global.
(write_function_header): Strip TARGET_DEBUG_PRINTER from the type
name.
Write debug methods. Generate init_debug_target.
* target-debug.h: New file.
* target-delegates.c: Rebuild.
* target.c: Include target-debug.h.
(debug_target): Hoist definition.
(target_kill, target_get_section_table, target_memory_map)
(target_flash_erase, target_flash_done, target_detach)
(target_disconnect, target_wait, target_resume)
(target_pass_signals, target_program_signals, target_follow_fork)
(target_mourn_inferior, target_search_memory)
(target_thread_address_space, target_close)
(target_find_new_threads, target_core_of_thread)
(target_verify_memory, target_insert_mask_watchpoint)
(target_remove_mask_watchpoint): Remove targetdebug code.
(debug_to_post_attach, debug_to_prepare_to_store)
(debug_to_files_info, debug_to_insert_breakpoint)
(debug_to_remove_breakpoint, debug_to_can_use_hw_breakpoint)
(debug_to_region_ok_for_hw_watchpoint)
(debug_to_can_accel_watchpoint_condition)
(debug_to_stopped_by_watchpoint, debug_to_stopped_data_address)
(debug_to_watchpoint_addr_within_range)
(debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint)
(debug_to_insert_watchpoint, debug_to_remove_watchpoint)
(debug_to_terminal_init, debug_to_terminal_inferior)
(debug_to_terminal_ours_for_output, debug_to_terminal_ours)
(debug_to_terminal_save_ours, debug_to_terminal_info)
(debug_to_load, debug_to_post_startup_inferior)
(debug_to_insert_fork_catchpoint)
(debug_to_remove_fork_catchpoint)
(debug_to_insert_vfork_catchpoint)
(debug_to_remove_vfork_catchpoint)
(debug_to_insert_exec_catchpoint)
(debug_to_remove_exec_catchpoint, debug_to_has_exited)
(debug_to_can_run, debug_to_thread_architecture, debug_to_stop)
(debug_to_rcmd, debug_to_pid_to_exec_file): Remove.
(setup_target_debug): Call init_debug_target.
* target.h (TARGET_DEBUG_PRINTER): New macro.
(struct target_ops) <to_resume, to_wait, to_pass_signals,
to_program_signals>: Use TARGET_DEBUG_PRINTER.
2014-06-16 05:28:57 +02:00
|
|
|
|
return current_target.to_thread_alive (¤t_target, ptid);
|
* corelow.c (get_core_registers): Adjust.
(core_file_thread_alive): Rename to...
(core_thread_alive): ... this.
(core_pid_to_str): Try gdbarch_core_pid_to_str first.
(init_core_ops): Adjust.
(coreops_suppress_target): Delete.
(_initialize_corelow): Unconditionally add core_ops.
* procfs.c: Include "inf-child.h".
(procfs_ops): Delete.
(init_procfs_ops): Delete. Reimplement as...
(procfs_target): ... this, inheriting from inf-child.
(procfs_attach, procfs_detach, procfs_fetch_registers): Adjust.
(procfs_prepare_to_store): Delete.
(procfs_store_registers, procfs_resume): Adjust.
(procfs_open): Delete.
(procfs_suppress_run): Delete.
(procfs_can_run): Delete.
(procfs_mourn_inferior): Adjust.
(procfs_init_inferior): Add target_ops parameter. Adjust.
(procfs_create_inferior): Don't pass procfs_init_inferior to
fork_inferior. Instead call it after fork_inferior returns.
(procfs_find_new_threads): Adjust.
(_initialize_procfs): Adjust to use procfs_target instead of
init_procfs_ops.
* sol-thread.c (orig_core_ops, sol_core_ops): Delete.
(lwp_to_thread): Use target_thread_alive.
(sol_thread_open): Delete.
(sol_thread_attach): Delete.
(sol_thread_detach, sol_thread_resume, sol_thread_wait)
(sol_thread_fetch_registers, sol_thread_store_registers): Adjust
to use find_target_beneath.
(sol_thread_prepare_to_store, sol_thread_xfer_memory): Delete.
(sol_thread_xfer_partial): Adjust to use find_target_beneath.
(sol_thread_files_info, sol_thread_kill_inferior): Delete.
(check_for_thread_db): New.
(sol_thread_notice_signals, sol_thread_create_inferior): Delete.
(sol_thread_new_objfile): Call check_for_thread_db.
(sol_thread_mourn_inferior): Adjust to use find_target_beneath.
(sol_thread_can_run): Delete.
(sol_thread_alive): Adjust to use find_target_beneath.
(sol_thread_stop): Delete.
(rw_common): Use target_write_memory or target_read_memory.
(ps_lgetregs, ps_lgetfpregs): Use target_fetch_registers.
(ps_lsetregs, ps_lsetfpregs): Use target_store_registers.
(solaris_pid_to_str): Remove check for libthread_db initialization
failing.
(sol_find_new_threads): Remove check for libthread_db
initialization failing, or for an invalid inferior_ptid. Adjust
to use find_target_beneath.
(sol_core_open, sol_core_close, sol_core_detach,
sol_core_files_info, sol_find_memory_regions,
sol_make_note_section, ignore): Delete.
(init_sol_thread_ops): Make it a thread_stratum target. Remove
unneeded callback settings.
(init_sol_core_ops): Delete.
(_initialize_sol_thread): No longer call init_sol_core_ops, set
procfs_suppress_run, or hack with core_ops.
* target.h (struct target_ops): Add a target_ops * parameter to
to_resume, to_fetch_registers, to_store_registers, to_thread_alive
and to_find_new_threads.
(target_fetch_registers, target_store_registers)
(target_thread_alive, target_find_new_threads): Redeclare as
function.
* target.c (update_current_target): Do not inherit or de_fault
to_resume, to_fetch_registers, to_store_registers,
to_thread_alive, to_find_new_threads.
(target_resume): Adjust.
(target_thread_alive, target_find_new_threads): New.
(debug_to_resume, debug_to_fetch_registers): Delete.
(target_fetch_registers): New.
(debug_to_store_registers): Delete.
(target_store_registers): New.
(debug_to_thread_alive, debug_to_find_new_threads): Delete.
(setup_target_debug): Adjust.
* gdbcore.h (core_ops): Delete declaration.
* inf-ptrace.c, linux-nat.c, remote.c, amd64-linux-nat.c,
inf-child.c, linux-thread-db.c, bsd-uthread.c, inf-ttrace.c,
i386-sol2-tdep.c, darwin-nat.c, gnu-nat.c, go32-nat.c,
hpux-thread.c, i386-linux-nat.c, i386fbsd-nat.c, monitor.c,
nto-procfs.c, remote-m32r-sdi.c, remote-mips.c, windows-nat.c,
alphabsd-nat.c, amd64bsd-nat.c, arm-linux-nat.c, armnbsd-nat.c,
bsd-kvm.c, hppa-hpux-nat.c, hppa-linux-nat.c, hppabsd-nat.c,
hppanbsd-nat.c, i386-darwin-nat.c, i386bsd-nat.c,
ia64-linux-nat.c, m32r-linux-nat.c, m68kbsd-nat.c,
m68klinux-nat.c, m88kbsd-nat.c, mips-linux-nat.c,
mips64obsd-nat.c, mipsnbsd-nat.c, ppc-linux-nat.c, ppcnbsd-nat.c,
ppcobsd-nat.c, remote-sim.c, rs6000-nat.c, s390-nat.c,
shnbsd-nat.c, sparc-nat.c, sparc-nat.h, spu-linux-nat.c,
vaxbsd-nat.c, xtensa-linux-nat.c: Adjust to target_ops changes.
* gdbarch.sh (core_pid_to_str): New gdbarch callback.
* gdbarch.h, gdbarch.c: Regenerate.
* sol2-tdep.c: Include "inferior.h".
(sol2_core_pid_to_str): New.
* sol2-tdep.h (sol2_core_pid_to_str): Declare.
* amd64-sol2-tdep.c (amd64_sol2_init_abi): Set it.
* sparc-sol2-tdep.c (sparc32_sol2_init_abi): Set it.
* sparc64-sol2-tdep.c (sparc64_sol2_init_abi): Set it.
* i386-sol2-tdep.c (i386_sol2_init_abi): Set it.
2009-02-23 01:03:50 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
Push pruning old threads down to the target
When GDB wants to sync the thread list with the target's (e.g., due to
"info threads"), it calls update_thread_list:
update_thread_list (void)
{
prune_threads ();
target_find_new_threads ();
update_threads_executing ();
}
And then prune_threads does:
prune_threads (void)
{
struct thread_info *tp, *next;
for (tp = thread_list; tp; tp = next)
{
next = tp->next;
if (!thread_alive (tp))
delete_thread (tp->ptid);
}
}
Calling thread_live on each thread one by one is expensive.
E.g., on Linux, it ends up doing kill(SIG0) once for each thread. Not
a big deal, but still a bunch of syscalls...
With the remote target, it's cumbersome. That thread_alive call ends
up generating one T packet per thread:
Sending packet: $Tp2141.2150#82...Packet received: OK
Sending packet: $Tp2141.214f#b7...Packet received: OK
Sending packet: $Tp2141.2141#82...Packet received: OK
Sending packet: $qXfer:threads:read::0,fff#03...Packet received: l<threads>\n<thread id="p2141.2141" core="2"/>\n<thread id="p2141.214f" core="1"/>\n<thread id="p2141.2150" core="2"/>\n</threads>\n
That seems a bit silly when target_find_new_threads method
implementations will always fetch the whole current set of target
threads, and then add those that are not in GDB's thread list, to
GDB's thread list.
This patch thus pushes down the responsibility of pruning dead threads
to the target_find_new_threads method instead, so a target may
implement pruning dead threads however it wants.
Once we do that, target_find_new_threads becomes a misnomer, so the
patch renames it to target_update_thread_list.
The patch doesn't attempt to do any optimization to any target yet.
It simply exports prune_threads, and makes all implementations of
target_update_thread_list call that. It's meant to be a no-op.
gdb/
2014-10-15 Pedro Alves <palves@redhat.com>
* ada-tasks.c (print_ada_task_info, task_command_1): Adjust.
* bsd-uthread.c (bsd_uthread_find_new_threads): Rename to ...
(bsd_uthread_update_thread_list): ... this. Call prune_threads.
(bsd_uthread_target): Adjust.
* corelow.c (core_open): Adjust.
* dec-thread.c (dec_thread_find_new_threads): Update comment.
(dec_thread_update_thread_list): New function.
(init_dec_thread_ops): Adjust.
* gdbthread.h (prune_threads): New declaration.
* linux-thread-db.c (thread_db_find_new_threads): Rename to ...
(thread_db_update_thread_list): ... this. Call prune_threads.
(init_thread_db_ops): Adjust.
* nto-procfs.c (procfs_find_new_threads): Rename to ...
(procfs_update_thread_list): ... this. Call prune_threads.
(procfs_attach, procfs_create_inferior, init_procfs_targets):
Adjust.
* obsd-nat.c (obsd_find_new_threads): Rename to ...
(obsd_update_thread_list): ... this. Call prune_threads.
(obsd_add_target): Adjust.
* procfs.c (procfs_target): Adjust.
(procfs_notice_thread): Update comment.
(procfs_find_new_threads): Rename to ...
(procfs_update_thread_list): ... this. Call prune_threads.
* ravenscar-thread.c (ravenscar_update_inferior_ptid): Update
comment.
(ravenscar_wait): Adjust.
(ravenscar_find_new_threads): Rename to ...
(ravenscar_update_thread_list): ... this. Call prune_threads.
(init_ravenscar_thread_ops): Adjust.
* record-btrace.c (record_btrace_find_new_threads): Rename to ...
(record_btrace_update_thread_list): ... this. Adjust comment.
(init_record_btrace_ops): Adjust.
* remote.c (remote_threads_info): Rename to ...
(remote_update_thread_list): ... this. Call prune_threads.
(remote_start_remote, extended_remote_attach_1, init_remote_ops):
Adjust.
* sol-thread.c (check_for_thread_db): Adjust.
(sol_find_new_threads_callback): Rename to ...
(sol_update_thread_list_callback): ... this.
(sol_find_new_threads): Rename to ...
(sol_update_thread_list): ... this. Call prune_threads. Adjust.
(sol_get_ada_task_ptid, init_sol_thread_ops): Adjust.
* target-delegates.c: Regenerate.
* target.c (target_find_new_threads): Rename to ...
(target_update_thread_list): ... this.
* target.h (struct target_ops): Rename to_find_new_threads field
to to_update_thread_list.
(target_find_new_threads): Rename to ...
(target_update_thread_list): ... this.
* thread.c (prune_threads): Make extern.
(update_thread_list): Adjust.
2014-10-15 23:44:00 +02:00
|
|
|
|
target_update_thread_list (void)
|
* corelow.c (get_core_registers): Adjust.
(core_file_thread_alive): Rename to...
(core_thread_alive): ... this.
(core_pid_to_str): Try gdbarch_core_pid_to_str first.
(init_core_ops): Adjust.
(coreops_suppress_target): Delete.
(_initialize_corelow): Unconditionally add core_ops.
* procfs.c: Include "inf-child.h".
(procfs_ops): Delete.
(init_procfs_ops): Delete. Reimplement as...
(procfs_target): ... this, inheriting from inf-child.
(procfs_attach, procfs_detach, procfs_fetch_registers): Adjust.
(procfs_prepare_to_store): Delete.
(procfs_store_registers, procfs_resume): Adjust.
(procfs_open): Delete.
(procfs_suppress_run): Delete.
(procfs_can_run): Delete.
(procfs_mourn_inferior): Adjust.
(procfs_init_inferior): Add target_ops parameter. Adjust.
(procfs_create_inferior): Don't pass procfs_init_inferior to
fork_inferior. Instead call it after fork_inferior returns.
(procfs_find_new_threads): Adjust.
(_initialize_procfs): Adjust to use procfs_target instead of
init_procfs_ops.
* sol-thread.c (orig_core_ops, sol_core_ops): Delete.
(lwp_to_thread): Use target_thread_alive.
(sol_thread_open): Delete.
(sol_thread_attach): Delete.
(sol_thread_detach, sol_thread_resume, sol_thread_wait)
(sol_thread_fetch_registers, sol_thread_store_registers): Adjust
to use find_target_beneath.
(sol_thread_prepare_to_store, sol_thread_xfer_memory): Delete.
(sol_thread_xfer_partial): Adjust to use find_target_beneath.
(sol_thread_files_info, sol_thread_kill_inferior): Delete.
(check_for_thread_db): New.
(sol_thread_notice_signals, sol_thread_create_inferior): Delete.
(sol_thread_new_objfile): Call check_for_thread_db.
(sol_thread_mourn_inferior): Adjust to use find_target_beneath.
(sol_thread_can_run): Delete.
(sol_thread_alive): Adjust to use find_target_beneath.
(sol_thread_stop): Delete.
(rw_common): Use target_write_memory or target_read_memory.
(ps_lgetregs, ps_lgetfpregs): Use target_fetch_registers.
(ps_lsetregs, ps_lsetfpregs): Use target_store_registers.
(solaris_pid_to_str): Remove check for libthread_db initialization
failing.
(sol_find_new_threads): Remove check for libthread_db
initialization failing, or for an invalid inferior_ptid. Adjust
to use find_target_beneath.
(sol_core_open, sol_core_close, sol_core_detach,
sol_core_files_info, sol_find_memory_regions,
sol_make_note_section, ignore): Delete.
(init_sol_thread_ops): Make it a thread_stratum target. Remove
unneeded callback settings.
(init_sol_core_ops): Delete.
(_initialize_sol_thread): No longer call init_sol_core_ops, set
procfs_suppress_run, or hack with core_ops.
* target.h (struct target_ops): Add a target_ops * parameter to
to_resume, to_fetch_registers, to_store_registers, to_thread_alive
and to_find_new_threads.
(target_fetch_registers, target_store_registers)
(target_thread_alive, target_find_new_threads): Redeclare as
function.
* target.c (update_current_target): Do not inherit or de_fault
to_resume, to_fetch_registers, to_store_registers,
to_thread_alive, to_find_new_threads.
(target_resume): Adjust.
(target_thread_alive, target_find_new_threads): New.
(debug_to_resume, debug_to_fetch_registers): Delete.
(target_fetch_registers): New.
(debug_to_store_registers): Delete.
(target_store_registers): New.
(debug_to_thread_alive, debug_to_find_new_threads): Delete.
(setup_target_debug): Adjust.
* gdbcore.h (core_ops): Delete declaration.
* inf-ptrace.c, linux-nat.c, remote.c, amd64-linux-nat.c,
inf-child.c, linux-thread-db.c, bsd-uthread.c, inf-ttrace.c,
i386-sol2-tdep.c, darwin-nat.c, gnu-nat.c, go32-nat.c,
hpux-thread.c, i386-linux-nat.c, i386fbsd-nat.c, monitor.c,
nto-procfs.c, remote-m32r-sdi.c, remote-mips.c, windows-nat.c,
alphabsd-nat.c, amd64bsd-nat.c, arm-linux-nat.c, armnbsd-nat.c,
bsd-kvm.c, hppa-hpux-nat.c, hppa-linux-nat.c, hppabsd-nat.c,
hppanbsd-nat.c, i386-darwin-nat.c, i386bsd-nat.c,
ia64-linux-nat.c, m32r-linux-nat.c, m68kbsd-nat.c,
m68klinux-nat.c, m88kbsd-nat.c, mips-linux-nat.c,
mips64obsd-nat.c, mipsnbsd-nat.c, ppc-linux-nat.c, ppcnbsd-nat.c,
ppcobsd-nat.c, remote-sim.c, rs6000-nat.c, s390-nat.c,
shnbsd-nat.c, sparc-nat.c, sparc-nat.h, spu-linux-nat.c,
vaxbsd-nat.c, xtensa-linux-nat.c: Adjust to target_ops changes.
* gdbarch.sh (core_pid_to_str): New gdbarch callback.
* gdbarch.h, gdbarch.c: Regenerate.
* sol2-tdep.c: Include "inferior.h".
(sol2_core_pid_to_str): New.
* sol2-tdep.h (sol2_core_pid_to_str): Declare.
* amd64-sol2-tdep.c (amd64_sol2_init_abi): Set it.
* sparc-sol2-tdep.c (sparc32_sol2_init_abi): Set it.
* sparc64-sol2-tdep.c (sparc64_sol2_init_abi): Set it.
* i386-sol2-tdep.c (i386_sol2_init_abi): Set it.
2009-02-23 01:03:50 +01:00
|
|
|
|
{
|
Push pruning old threads down to the target
When GDB wants to sync the thread list with the target's (e.g., due to
"info threads"), it calls update_thread_list:
update_thread_list (void)
{
prune_threads ();
target_find_new_threads ();
update_threads_executing ();
}
And then prune_threads does:
prune_threads (void)
{
struct thread_info *tp, *next;
for (tp = thread_list; tp; tp = next)
{
next = tp->next;
if (!thread_alive (tp))
delete_thread (tp->ptid);
}
}
Calling thread_live on each thread one by one is expensive.
E.g., on Linux, it ends up doing kill(SIG0) once for each thread. Not
a big deal, but still a bunch of syscalls...
With the remote target, it's cumbersome. That thread_alive call ends
up generating one T packet per thread:
Sending packet: $Tp2141.2150#82...Packet received: OK
Sending packet: $Tp2141.214f#b7...Packet received: OK
Sending packet: $Tp2141.2141#82...Packet received: OK
Sending packet: $qXfer:threads:read::0,fff#03...Packet received: l<threads>\n<thread id="p2141.2141" core="2"/>\n<thread id="p2141.214f" core="1"/>\n<thread id="p2141.2150" core="2"/>\n</threads>\n
That seems a bit silly when target_find_new_threads method
implementations will always fetch the whole current set of target
threads, and then add those that are not in GDB's thread list, to
GDB's thread list.
This patch thus pushes down the responsibility of pruning dead threads
to the target_find_new_threads method instead, so a target may
implement pruning dead threads however it wants.
Once we do that, target_find_new_threads becomes a misnomer, so the
patch renames it to target_update_thread_list.
The patch doesn't attempt to do any optimization to any target yet.
It simply exports prune_threads, and makes all implementations of
target_update_thread_list call that. It's meant to be a no-op.
gdb/
2014-10-15 Pedro Alves <palves@redhat.com>
* ada-tasks.c (print_ada_task_info, task_command_1): Adjust.
* bsd-uthread.c (bsd_uthread_find_new_threads): Rename to ...
(bsd_uthread_update_thread_list): ... this. Call prune_threads.
(bsd_uthread_target): Adjust.
* corelow.c (core_open): Adjust.
* dec-thread.c (dec_thread_find_new_threads): Update comment.
(dec_thread_update_thread_list): New function.
(init_dec_thread_ops): Adjust.
* gdbthread.h (prune_threads): New declaration.
* linux-thread-db.c (thread_db_find_new_threads): Rename to ...
(thread_db_update_thread_list): ... this. Call prune_threads.
(init_thread_db_ops): Adjust.
* nto-procfs.c (procfs_find_new_threads): Rename to ...
(procfs_update_thread_list): ... this. Call prune_threads.
(procfs_attach, procfs_create_inferior, init_procfs_targets):
Adjust.
* obsd-nat.c (obsd_find_new_threads): Rename to ...
(obsd_update_thread_list): ... this. Call prune_threads.
(obsd_add_target): Adjust.
* procfs.c (procfs_target): Adjust.
(procfs_notice_thread): Update comment.
(procfs_find_new_threads): Rename to ...
(procfs_update_thread_list): ... this. Call prune_threads.
* ravenscar-thread.c (ravenscar_update_inferior_ptid): Update
comment.
(ravenscar_wait): Adjust.
(ravenscar_find_new_threads): Rename to ...
(ravenscar_update_thread_list): ... this. Call prune_threads.
(init_ravenscar_thread_ops): Adjust.
* record-btrace.c (record_btrace_find_new_threads): Rename to ...
(record_btrace_update_thread_list): ... this. Adjust comment.
(init_record_btrace_ops): Adjust.
* remote.c (remote_threads_info): Rename to ...
(remote_update_thread_list): ... this. Call prune_threads.
(remote_start_remote, extended_remote_attach_1, init_remote_ops):
Adjust.
* sol-thread.c (check_for_thread_db): Adjust.
(sol_find_new_threads_callback): Rename to ...
(sol_update_thread_list_callback): ... this.
(sol_find_new_threads): Rename to ...
(sol_update_thread_list): ... this. Call prune_threads. Adjust.
(sol_get_ada_task_ptid, init_sol_thread_ops): Adjust.
* target-delegates.c: Regenerate.
* target.c (target_find_new_threads): Rename to ...
(target_update_thread_list): ... this.
* target.h (struct target_ops): Rename to_find_new_threads field
to to_update_thread_list.
(target_find_new_threads): Rename to ...
(target_update_thread_list): ... this.
* thread.c (prune_threads): Make extern.
(update_thread_list): Adjust.
2014-10-15 23:44:00 +02:00
|
|
|
|
current_target.to_update_thread_list (¤t_target);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
2010-06-12 02:05:22 +02:00
|
|
|
|
void
|
|
|
|
|
target_stop (ptid_t ptid)
|
|
|
|
|
{
|
|
|
|
|
if (!may_stop)
|
|
|
|
|
{
|
|
|
|
|
warning (_("May not interrupt or stop the target, ignoring attempt"));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
2013-12-18 05:34:36 +01:00
|
|
|
|
(*current_target.to_stop) (¤t_target, ptid);
|
2010-06-12 02:05:22 +02:00
|
|
|
|
}
|
|
|
|
|
|
2014-09-11 12:19:56 +02:00
|
|
|
|
/* See target/target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
2014-09-22 12:33:59 +02:00
|
|
|
|
target_stop_and_wait (ptid_t ptid)
|
2014-09-11 12:19:56 +02:00
|
|
|
|
{
|
|
|
|
|
struct target_waitstatus status;
|
|
|
|
|
int was_non_stop = non_stop;
|
|
|
|
|
|
|
|
|
|
non_stop = 1;
|
|
|
|
|
target_stop (ptid);
|
|
|
|
|
|
|
|
|
|
memset (&status, 0, sizeof (status));
|
|
|
|
|
target_wait (ptid, &status, 0);
|
|
|
|
|
|
|
|
|
|
non_stop = was_non_stop;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target/target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
2014-09-22 12:33:59 +02:00
|
|
|
|
target_continue_no_signal (ptid_t ptid)
|
2014-09-11 12:19:56 +02:00
|
|
|
|
{
|
|
|
|
|
target_resume (ptid, 0, GDB_SIGNAL_0);
|
|
|
|
|
}
|
|
|
|
|
|
2012-07-20 18:57:32 +02:00
|
|
|
|
/* Concatenate ELEM to LIST, a comma separate list, and return the
|
|
|
|
|
result. The LIST incoming argument is released. */
|
|
|
|
|
|
|
|
|
|
static char *
|
|
|
|
|
str_comma_list_concat_elem (char *list, const char *elem)
|
|
|
|
|
{
|
|
|
|
|
if (list == NULL)
|
|
|
|
|
return xstrdup (elem);
|
|
|
|
|
else
|
|
|
|
|
return reconcat (list, list, ", ", elem, (char *) NULL);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Helper for target_options_to_string. If OPT is present in
|
|
|
|
|
TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET.
|
|
|
|
|
Returns the new resulting string. OPT is removed from
|
|
|
|
|
TARGET_OPTIONS. */
|
|
|
|
|
|
|
|
|
|
static char *
|
|
|
|
|
do_option (int *target_options, char *ret,
|
|
|
|
|
int opt, char *opt_str)
|
|
|
|
|
{
|
|
|
|
|
if ((*target_options & opt) != 0)
|
|
|
|
|
{
|
|
|
|
|
ret = str_comma_list_concat_elem (ret, opt_str);
|
|
|
|
|
*target_options &= ~opt;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
char *
|
|
|
|
|
target_options_to_string (int target_options)
|
|
|
|
|
{
|
|
|
|
|
char *ret = NULL;
|
|
|
|
|
|
|
|
|
|
#define DO_TARG_OPTION(OPT) \
|
|
|
|
|
ret = do_option (&target_options, ret, OPT, #OPT)
|
|
|
|
|
|
|
|
|
|
DO_TARG_OPTION (TARGET_WNOHANG);
|
|
|
|
|
|
|
|
|
|
if (target_options != 0)
|
|
|
|
|
ret = str_comma_list_concat_elem (ret, "unknown???");
|
|
|
|
|
|
|
|
|
|
if (ret == NULL)
|
|
|
|
|
ret = xstrdup ("");
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
2002-05-04 16:19:21 +02:00
|
|
|
|
static void
|
* target.h (struct regcache): Add forward declaration.
(struct target_ops): Add REGCACHE parameter to to_fetch_registers
and to_store_registers target operations.
(target_fetch_registers, target_store_registers): Update.
* regcache.c (regcache_raw_read): Replace register_cached by
regcache_valid_p. Pass regcache to target_fetch_registers.
(regcache_raw_write): Pass regcache to target_store_registers.
* arm-linux-nat.c (store_fpregister, store_fpregs, store_register,
store_regs, store_wmmx_regs): Replace register_cached by
regcache_valid_p.
* bsd-kvm.c (bsd_kvm_open, bsd_kvm_proc_cmd): Pass current_regcache
to target_fetch_registers calls.
* corelow.c (core_open): Likewise.
* linux-nat.c (linux_nat_corefile_thread_callback): Likewise.
* proc-service.c (ps_lgetregs, ps_lsetregs, ps_lgetfpregs,
ps_lsetfpregs): Likewise.
* sol-thread.c (ps_lgetregs, ps_lsetregs, ps_lgetfpregs,
ps_lsetfpregs): Likewise.
* win32-nat.c (win32_resume): Likewise.
* ia64-tdep.c (ia64_store_return_value): Pass current_regcache
to target_store_registers call.
* rs6000-tdep.c (rs6000_push_dummy_call): Likewise.
* inferior.h (store_inferior_registers): Update prototype.
(fetch_inferior_registers): Likewise.
* gnu-nat.c (gnu_store_registers, gnu_fetch_registers): Likewise.
* mips-linux-nat.c (super_fetch_registers, super_store_registers):
Update function pointer signatures.
* aix-thread.c (aix_thread_fetch_registers): Add REGCACHE parameter,
use it instead of current_regcache, update calls.
(aix_thread_store_registers): Likewise.
* alphabsd-nat.c (alphabsd_fetch_inferior_registers): Likewise.
(alphabsd_store_inferior_registers): Likewise.
* amd64bsd-nat.c (amd64bsd_fetch_inferior_registers): Likewise.
(amd64bsd_store_inferior_registers): Likewise.
* amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Likewise.
(amd64_linux_store_inferior_registers): Likewise.
* arm-linux-nat.c (fetch_fpregister, fetch_fpregs, store_fpregister,
store_fpregs, fetch_register, fetch_regs, store_register, store_regs,
fetch_wmmx_regs, store_wmmx_regs): Likewise.
(arm_linux_fetch_inferior_registers): Likewise.
(arm_linux_store_inferior_registers): Likewise.
* armnbsd-nat.c (fetch_register, fetch_regs, fetch_fp_register,
fetch_fp_regs, armnbsd_fetch_registers): Likewise.
(store_register, store_regs, store_fp_register, store_fp_regs,
armnbsd_store_registers): Likewise.
* bsd-kvm.c (bsd_kvm_fetch_pcb, bsd_kvm_fetch_registers): Likewise.
* bsd-uthread.c (bsd_uthread_fetch_registers): Likewise.
(bsd_uthread_store_registers): Likewise.
* corelow.c (get_core_registers): Likewise.
* go32-nat.c (fetch_register, go32_fetch_registers, store_register,
go32_store_registers): Likewise.
* hppabsd-nat.c (hppabsd_fetch_registers): Likewise.
(hppabsd_store_registers): Likewise.
* hppa-hpux-nat.c (hppa_hpux_fetch_register): Likewise.
(hppa_hpux_fetch_inferior_registers): Likewise.
(hppa_hpux_store_register): Likewise.
(hppa_hpux_store_inferior_registers): Likewise.
* hppa-linux-nat.c (fetch_register, store_register): Likewise.
(hppa_linux_fetch_inferior_registers): Likewise.
(hppa_linux_store_inferior_registers): Likewise.
* hpux-thread.c (hpux_thread_fetch_registers): Likewise.
(hpux_thread_store_registers): Likewise.
* i386bsd-nat.c (i386bsd_fetch_inferior_registers): Likewise.
(i386bsd_store_inferior_registers): Likewise.
* i386gnu-nat.c (fetch_fpregs, gnu_fetch_registers, store_fpregs,
gnu_store_registers): Likewise.
* i386-linux-nat.c (fetch_register, store_register, fetch_regs,
store_regs, fetch_fpregs, store_fpregs, fetch_fpxregs, store_fpxregs):
Likewise.
(i386_linux_fetch_inferior_registers): Likewise.
(i386_linux_store_inferior_registers): Likewise.
* ia64-linux-nat.c (ia64_linux_fetch_register): Likewise.
(ia64_linux_fetch_registers): Likewise.
(ia64_linux_store_register): Likewise.
(ia64_linux_store_registers): Likewise.
* inf-child.c (inf_child_fetch_inferior_registers): Likewise.
(inf_child_store_inferior_registers): Likewise.
* inf-ptrace.c (inf_ptrace_fetch_register): Likewise.
(inf_ptrace_fetch_registers): Likewise.
(inf_ptrace_store_register): Likewise.
(inf_ptrace_store_registers): Likewise.
* infptrace.c (fetch_register, store_register): Likewise.
(fetch_inferior_registers, store_inferior_registers): Likewise.
* m32r-linux-nat.c (fetch_regs, store_regs): Likewise.
(m32r_linux_fetch_inferior_registers): Likewise.
(m32r_linux_store_inferior_registers): Likewise.
* m68kbsd-nat.c (m68kbsd_fetch_inferior_registers): Likewise.
(m68kbsd_store_inferior_registers): Likewise.
* m68klinux-nat.c (fetch_register, old_fetch_inferior_registers,
store_register, old_store_inferior_registers, fetch_regs, store_regs,
fetch_fpregs, store_fpregs): Likewise.
(m68k_linux_fetch_inferior_registers): Likewise.
(m68k_linux_store_inferior_registers): Likewise.
* m88kbsd-nat.c (m88kbsd_fetch_inferior_registers): Likewise.
(m88kbsd_store_inferior_registers): Likewise.
* mips64obsd-nat.c (mips64obsd_fetch_inferior_registers): Likewise.
(mips64obsd_store_inferior_registers): Likewise.
* mips-linux-nat.c (mips64_linux_regsets_fetch_registers): Likewise.
(mips64_linux_regsets_store_registers): Likewise.
(mips64_linux_fetch_registers): Likewise.
(mips64_linux_store_registers): Likewise.
* mipsnbsd-nat.c (mipsnbsd_fetch_inferior_registers): Likewise.
(mipsnbsd_store_inferior_registers): Likewise.
* monitor.c (monitor_fetch_register, monitor_store_register): Likewise.
(monitor_fetch_registers, monitor_store_registers): Likewise.
* nto-procfs.c (procfs_fetch_registers): Likewise.
(procfs_store_registers): Likewise.
* ppc-linux-nat.c (fetch_altivec_register, fetch_spe_register,
fetch_register, supply_vrregset, fetch_altivec_registers,
fetch_ppc_registers, ppc_linux_fetch_inferior_registers): Likewise.
(store_altivec_register, store_spe_register, store_register,
fill_vrregset, store_altivec_registers, store_ppc_registers,
ppc_linux_store_inferior_registers): Likewise.
* ppcnbsd-nat.c (ppcnbsd_fetch_inferior_registers): Likewise.
(ppcnbsd_store_inferior_registers): Likewise.
* ppcobsd-nat.c (ppcobsd_fetch_registers): Likewise.
(ppcobsd_store_registers): Likewise.
* procfs.c (procfs_fetch_registers, procfs_store_registers): Likewise.
* remote.c (fetch_register_using_p, process_g_packet,
fetch_registers_using_g, remote_fetch_registers): Likewise.
(store_register_using_P, store_registers_using_G,
remote_store_registers): Likewise.
* remote-m32r-sdi.c (m32r_fetch_registers, m32r_fetch_register,
m32r_store_register, m32r_store_register): Likewise.
* remote-mips.c (mips_fetch_registers, mips_store_registers): Likewise.
* remote-sim.c (gdbsim_fetch_register): Likewise.
(gdbsim_store_register): Likewise.
* rs6000-nat.c (fetch_register, store_register): Likewise.
(rs6000_fetch_inferior_registers): Likewise.
(rs6000_store_inferior_registers): Likewise.
* s390-nat.c (fetch_regs, store_regs): Likewise.
(fetch_fpregs, store_fpregs): Likewise.
(s390_linux_fetch_inferior_registers): Likewise.
(s390_linux_store_inferior_registers): Likewise.
* shnbsd-nat.c (shnbsd_fetch_inferior_registers): Likewise.
(shnbsd_store_inferior_registers): Likewise.
* sol-thread.c (sol_thread_fetch_registers): Likewise.
(sol_thread_store_registers): Likewise.
* sparc-nat.c (fetch_inferior_registers): Likewise.
(store_inferior_registers): Likewise.
* spu-linux-nat.c (spu_fetch_inferior_registers): Likewise.
(spu_store_inferior_registers): Likewise.
* target.c (debug_print_register): Likewise.
(debug_to_fetch_registers, debug_to_store_registers): Likewise.
* vaxbsd-nat.c (vaxbsd_fetch_inferior_registers): Likewise.
(vaxbsd_store_inferior_registers): Likewise.
* win32-nat.c (do_win32_fetch_inferior_registers): Likewise.
(win32_fetch_inferior_registers): Likewise.
(win32_store_inferior_registers): Likewise.
2007-05-06 16:34:38 +02:00
|
|
|
|
debug_print_register (const char * func,
|
|
|
|
|
struct regcache *regcache, int regno)
|
2002-05-04 16:19:21 +02:00
|
|
|
|
{
|
2007-10-22 16:03:37 +02:00
|
|
|
|
struct gdbarch *gdbarch = get_regcache_arch (regcache);
|
2010-05-17 03:15:20 +02:00
|
|
|
|
|
2002-05-04 16:19:21 +02:00
|
|
|
|
fprintf_unfiltered (gdb_stdlog, "%s ", func);
|
2007-10-22 16:03:37 +02:00
|
|
|
|
if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)
|
|
|
|
|
&& gdbarch_register_name (gdbarch, regno) != NULL
|
|
|
|
|
&& gdbarch_register_name (gdbarch, regno)[0] != '\0')
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog, "(%s)",
|
|
|
|
|
gdbarch_register_name (gdbarch, regno));
|
2002-05-04 16:19:21 +02:00
|
|
|
|
else
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog, "(%d)", regno);
|
2008-08-26 14:42:00 +02:00
|
|
|
|
if (regno >= 0 && regno < gdbarch_num_regs (gdbarch))
|
2002-05-04 16:19:21 +02:00
|
|
|
|
{
|
* defs.h (extract_signed_integer, extract_unsigned_integer,
extract_long_unsigned_integer, store_signed_integer,
store_unsigned_integer): Add BYTE_ORDER parameter.
* findvar.c (extract_signed_integer, extract_unsigned_integer,
extract_long_unsigned_integer, store_signed_integer,
store_unsigned_integer): Add BYTE_ORDER parameter. Use it
instead of current_gdbarch.
* gdbcore.h (read_memory_integer, safe_read_memory_integer,
read_memory_unsigned_integer, write_memory_signed_integer,
write_memory_unsigned_integer): Add BYTE_ORDER parameter.
* corefile.c (struct captured_read_memory_integer_arguments): Add
BYTE_ORDER member.
(safe_read_memory_integer): Add BYTE_ORDER parameter. Store it into
struct captured_read_memory_integer_arguments.
(do_captured_read_memory_integer): Pass it to read_memory_integer.
(read_memory_integer): Add BYTE_ORDER parameter. Pass it to
extract_signed_integer.
(read_memory_unsigned_integer): Add BYTE_ORDER parameter. Pass it to
extract_unsigned_integer.
(write_memory_signed_integer): Add BYTE_ORDER parameter. Pass it
to store_signed_integer.
(write_memory_unsigned_integer): Add BYTE_ORDER parameter. Pass it
to store_unsigned_integer.
* target.h (get_target_memory_unsigned): Add BYTE_ORDER parameter.
* target.c (get_target_memory_unsigned): Add BYTE_ORDER parameter.
Pass it to extract_unsigned_integer.
Update calls to extract_signed_integer, extract_unsigned_integer,
extract_long_unsigned_integer, store_signed_integer,
store_unsigned_integer, read_memory_integer,
read_memory_unsigned_integer, safe_read_memory_integer,
write_memory_signed_integer, write_memory_unsigned_integer, and
get_target_memory_unsigned to pass byte order:
* ada-lang.c (ada_value_binop): Update.
* ada-valprint.c (char_at): Update.
* alpha-osf1-tdep.c (alpha_osf1_sigcontext_addr): Update.
* alpha-tdep.c (alpha_lds, alpha_sts, alpha_push_dummy_call,
alpha_extract_return_value, alpha_read_insn,
alpha_get_longjmp_target): Update.
* amd64-linux-tdep.c (amd64_linux_sigcontext_addr): Update.
* amd64obsd-tdep.c (amd64obsd_supply_uthread,
amd64obsd_collect_uthread, amd64obsd_trapframe_cache): Update.
* amd64-tdep.c (amd64_push_dummy_call, amd64_analyze_prologue,
amd64_frame_cache, amd64_sigtramp_frame_cache, fixup_riprel,
amd64_displaced_step_fixup): Update.
* arm-linux-tdep.c (arm_linux_sigreturn_init,
arm_linux_rt_sigreturn_init, arm_linux_supply_gregset): Update.
* arm-tdep.c (thumb_analyze_prologue, arm_skip_prologue,
arm_scan_prologue, arm_push_dummy_call, thumb_get_next_pc,
arm_get_next_pc, arm_extract_return_value, arm_store_return_value,
arm_return_value): Update.
* arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update.
* auxv.c (default_auxv_parse): Update.
* avr-tdep.c (avr_address_to_pointer, avr_pointer_to_address,
avr_scan_prologue, avr_extract_return_value,
avr_frame_prev_register, avr_push_dummy_call): Update.
* bsd-uthread.c (bsd_uthread_check_magic, bsd_uthread_lookup_offset,
bsd_uthread_wait, bsd_uthread_thread_alive,
bsd_uthread_extra_thread_info): Update.
* c-lang.c (c_printstr, print_wchar): Update.
* cp-valprint.c (cp_print_class_member): Update.
* cris-tdep.c (cris_sigcontext_addr, cris_sigtramp_frame_unwind_cache,
cris_push_dummy_call, cris_scan_prologue, cris_store_return_value,
cris_extract_return_value, find_step_target, dip_prefix,
sixteen_bit_offset_branch_op, none_reg_mode_jump_op,
move_mem_to_reg_movem_op, get_data_from_address): Update.
* dwarf2expr.c (dwarf2_read_address, execute_stack_op): Update.
* dwarf2-frame.c (execute_cfa_program): Update.
* dwarf2loc.c (find_location_expression): Update.
* dwarf2read.c (dwarf2_const_value): Update.
* expprint.c (print_subexp_standard): Update.
* findvar.c (unsigned_pointer_to_address, signed_pointer_to_address,
unsigned_address_to_pointer, address_to_signed_pointer,
read_var_value): Update.
* frame.c (frame_unwind_register_signed,
frame_unwind_register_unsigned, get_frame_memory_signed,
get_frame_memory_unsigned): Update.
* frame-unwind.c (frame_unwind_got_constant): Update.
* frv-linux-tdep.c (frv_linux_pc_in_sigtramp,
frv_linux_sigcontext_reg_addr, frv_linux_sigtramp_frame_cache):
Update.
* frv-tdep.c (frv_analyze_prologue, frv_skip_main_prologue,
frv_extract_return_value, find_func_descr,
frv_convert_from_func_ptr_addr, frv_push_dummy_call): Update.
* f-valprint.c (f_val_print): Update.
* gnu-v3-abi.c (gnuv3_decode_method_ptr, gnuv3_make_method_ptr):
Update.
* h8300-tdep.c (h8300_is_argument_spill, h8300_analyze_prologue,
h8300_push_dummy_call, h8300_extract_return_value,
h8300h_extract_return_value, h8300_store_return_value,
h8300h_store_return_value): Update.
* hppabsd-tdep.c (hppabsd_find_global_pointer): Update.
* hppa-hpux-nat.c (hppa_hpux_fetch_register, hppa_hpux_store_register):
Update.
* hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline,
hppa64_hpux_in_solib_call_trampoline,
hppa_hpux_in_solib_return_trampoline, hppa_hpux_skip_trampoline_code,
hppa_hpux_sigtramp_frame_unwind_cache,
hppa_hpux_sigtramp_unwind_sniffer, hppa32_hpux_find_global_pointer,
hppa64_hpux_find_global_pointer, hppa_hpux_search_pattern,
hppa32_hpux_search_dummy_call_sequence,
hppa64_hpux_search_dummy_call_sequence, hppa_hpux_supply_save_state,
hppa_hpux_unwind_adjust_stub): Update.
* hppa-linux-tdep.c (insns_match_pattern,
hppa_linux_find_global_pointer): Update.
* hppa-tdep.c (hppa_in_function_epilogue_p, hppa32_push_dummy_call,
hppa64_convert_code_addr_to_fptr, hppa64_push_dummy_call,
skip_prologue_hard_way, hppa_frame_cache, hppa_fallback_frame_cache,
hppa_pseudo_register_read, hppa_frame_prev_register_helper,
hppa_match_insns): Update.
* hpux-thread.c (hpux_thread_fetch_registers): Update.
* i386-tdep.c (i386bsd_sigcontext_addr): Update.
* i386-cygwin-tdep.c (core_process_module_section): Update.
* i386-darwin-nat.c (i386_darwin_sstep_at_sigreturn,
amd64_darwin_sstep_at_sigreturn): Update.
* i386-darwin-tdep.c (i386_darwin_sigcontext_addr,
amd64_darwin_sigcontext_addr): Likewise.
* i386-linux-nat.c (i386_linux_sigcontext_addr): Update.
* i386nbsd-tdep.c (i386nbsd_sigtramp_cache_init): Update.
* i386-nto-tdep.c (i386nto_sigcontext_addr): Update.
* i386obsd-nat.c (i386obsd_supply_pcb): Update.
* i386obsd-tdep.c (i386obsd_supply_uthread, i386obsd_collect_uthread,
i386obsd_trapframe_cache): Update.
* i386-tdep.c (i386_displaced_step_fixup, i386_follow_jump,
i386_analyze_frame_setup, i386_analyze_prologue,
i386_skip_main_prologue, i386_frame_cache, i386_sigtramp_frame_cache,
i386_get_longjmp_target, i386_push_dummy_call,
i386_pe_skip_trampoline_code, i386_svr4_sigcontext_addr,
i386_fetch_pointer_argument): Update.
* i387-tdep.c (i387_supply_fsave): Update.
* ia64-linux-tdep.c (ia64_linux_sigcontext_register_address): Update.
* ia64-tdep.c (ia64_pseudo_register_read, ia64_pseudo_register_write,
examine_prologue, ia64_frame_cache, ia64_frame_prev_register,
ia64_sigtramp_frame_cache, ia64_sigtramp_frame_prev_register,
ia64_access_reg, ia64_access_rse_reg, ia64_libunwind_frame_this_id,
ia64_libunwind_frame_prev_register,
ia64_libunwind_sigtramp_frame_this_id,
ia64_libunwind_sigtramp_frame_prev_register, ia64_find_global_pointer,
find_extant_func_descr, find_func_descr,
ia64_convert_from_func_ptr_addr, ia64_push_dummy_call, ia64_dummy_id,
ia64_unwind_pc): Update.
* iq2000-tdep.c (iq2000_pointer_to_address, iq2000_address_to_pointer,
iq2000_scan_prologue, iq2000_extract_return_value,
iq2000_push_dummy_call): Update.
* irix5nat.c (fill_gregset): Update.
* jv-lang.c (evaluate_subexp_java): Update.
* jv-valprint.c (java_value_print): Update.
* lm32-tdep.c (lm32_analyze_prologue, lm32_push_dummy_call,
lm32_extract_return_value, lm32_store_return_value): Update.
* m32c-tdep.c (m32c_push_dummy_call, m32c_return_value,
m32c_skip_trampoline_code, m32c_m16c_address_to_pointer,
m32c_m16c_pointer_to_address): Update.
* m32r-tdep.c (m32r_store_return_value, decode_prologue,
m32r_skip_prologue, m32r_push_dummy_call, m32r_extract_return_value):
Update.
* m68hc11-tdep.c (m68hc11_pseudo_register_read,
m68hc11_pseudo_register_write, m68hc11_analyze_instruction,
m68hc11_push_dummy_call): Update.
* m68linux-tdep.c (m68k_linux_pc_in_sigtramp,
m68k_linux_get_sigtramp_info, m68k_linux_sigtramp_frame_cache):
Update.
* m68k-tdep.c (m68k_push_dummy_call, m68k_analyze_frame_setup,
m68k_analyze_register_saves, m68k_analyze_prologue, m68k_frame_cache,
m68k_get_longjmp_target): Update.
* m88k-tdep.c (m88k_fetch_instruction): Update.
* mep-tdep.c (mep_pseudo_cr32_read, mep_pseudo_csr_write,
mep_pseudo_cr32_write, mep_get_insn, mep_push_dummy_call): Update.
* mi/mi-main.c (mi_cmd_data_write_memory): Update.
* mips-linux-tdep.c (mips_linux_get_longjmp_target, supply_32bit_reg,
mips64_linux_get_longjmp_target, mips64_fill_gregset,
mips64_fill_fpregset, mips_linux_in_dynsym_stub): Update.
* mipsnbdsd-tdep.c (mipsnbsd_get_longjmp_target): Update.
* mips-tdep.c (mips_fetch_instruction, fetch_mips_16,
mips_eabi_push_dummy_call, mips_n32n64_push_dummy_call,
mips_o32_push_dummy_call, mips_o64_push_dummy_call,
mips_single_step_through_delay, mips_skip_pic_trampoline_code,
mips_integer_to_address): Update.
* mn10300-tdep.c (mn10300_analyze_prologue, mn10300_push_dummy_call):
Update.
* monitor.c (monitor_supply_register, monitor_write_memory,
monitor_read_memory_single): Update.
* moxie-tdep.c (moxie_store_return_value, moxie_extract_return_value,
moxie_analyze_prologue): Update.
* mt-tdep.c (mt_return_value, mt_skip_prologue, mt_select_coprocessor,
mt_pseudo_register_read, mt_pseudo_register_write, mt_registers_info,
mt_push_dummy_call): Update.
* objc-lang.c (read_objc_method, read_objc_methlist_nmethods,
read_objc_methlist_method, read_objc_object, read_objc_super,
read_objc_class, find_implementation_from_class): Update.
* ppc64-linux-tdep.c (ppc64_desc_entry_point,
ppc64_linux_convert_from_func_ptr_addr, ppc_linux_sigtramp_cache):
Update.
* ppcobsd-tdep.c (ppcobsd_sigtramp_frame_sniffer,
ppcobsd_sigtramp_frame_cache): Update.
* ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call,
do_ppc_sysv_return_value, ppc64_sysv_abi_push_dummy_call,
ppc64_sysv_abi_return_value): Update.
* ppc-linux-nat.c (ppc_linux_auxv_parse): Update.
* procfs.c (procfs_auxv_parse): Update.
* p-valprint.c (pascal_val_print): Update.
* regcache.c (regcache_raw_read_signed, regcache_raw_read_unsigned,
regcache_raw_write_signed, regcache_raw_write_unsigned,
regcache_cooked_read_signed, regcache_cooked_read_unsigned,
regcache_cooked_write_signed, regcache_cooked_write_unsigned): Update.
* remote-m32r-sdi.c (m32r_fetch_register): Update.
* remote-mips.c (mips_wait, mips_fetch_registers, mips_xfer_memory):
Update.
* rs6000-aix-tdep.c (rs6000_push_dummy_call, rs6000_return_value,
rs6000_convert_from_func_ptr_addr, branch_dest,
rs6000_software_single_step): Update.
* rs6000-tdep.c (rs6000_in_function_epilogue_p,
ppc_displaced_step_fixup, ppc_deal_with_atomic_sequence,
bl_to_blrl_insn_p, rs6000_fetch_instruction, skip_prologue,
rs6000_skip_main_prologue, rs6000_skip_trampoline_code,
rs6000_frame_cache): Update.
* s390-tdep.c (s390_pseudo_register_read, s390_pseudo_register_write,
s390x_pseudo_register_read, s390x_pseudo_register_write, s390_load,
s390_backchain_frame_unwind_cache, s390_sigtramp_frame_unwind_cache,
extend_simple_arg, s390_push_dummy_call, s390_return_value): Update.
* scm-exp.c (scm_lreadr): Update.
* scm-lang.c (scm_get_field, scm_unpack): Update.
* scm-valprint.c (scm_val_print): Update.
* score-tdep.c (score_breakpoint_from_pc, score_push_dummy_call,
score_fetch_inst): Update.
* sh64-tdep.c (look_for_args_moves, sh64_skip_prologue_hard_way,
sh64_analyze_prologue, sh64_push_dummy_call, sh64_extract_return_value,
sh64_pseudo_register_read, sh64_pseudo_register_write,
sh64_frame_prev_register): Update:
* sh-tdep.c (sh_analyze_prologue, sh_push_dummy_call_fpu,
sh_push_dummy_call_nofpu, sh_extract_return_value_nofpu,
sh_store_return_value_nofpu, sh_in_function_epilogue_p): Update.
* solib-darwin.c (darwin_load_image_infos): Update.
* solib-frv.c (fetch_loadmap, lm_base, frv_current_sos, enable_break2,
find_canonical_descriptor_in_load_object): Update.
* solib-irix.c (extract_mips_address, fetch_lm_info, irix_current_sos,
irix_open_symbol_file_object): Update.
* solib-som.c (som_solib_create_inferior_hook, link_map_start,
som_current_sos, som_open_symbol_file_object): Update.
* solib-sunos.c (SOLIB_EXTRACT_ADDRESS, LM_ADDR, LM_NEXT, LM_NAME):
Update.
* solib-svr4.c (read_program_header, scan_dyntag_auxv,
solib_svr4_r_ldsomap): Update.
* sparc64-linux-tdep.c (sparc64_linux_step_trap): Update.
* sparc64obsd-tdep.c (sparc64obsd_supply_uthread,
sparc64obsd_collect_uthread): Update.
* sparc64-tdep.c (sparc64_pseudo_register_read,
sparc64_pseudo_register_write, sparc64_supply_gregset,
sparc64_collect_gregset): Update.
* sparc-linux-tdep.c (sparc32_linux_step_trap): Update.
* sparcobsd-tdep.c (sparc32obsd_supply_uthread,
sparc32obsd_collect_uthread): Update.
* sparc-tdep.c (sparc_fetch_wcookie, sparc32_push_dummy_code,
sparc32_store_arguments, sparc32_return_value, sparc_supply_rwindow,
sparc_collect_rwindow): Update.
* spu-linux-nat.c (parse_spufs_run): Update.
* spu-tdep.c (spu_pseudo_register_read_spu,
spu_pseudo_register_write_spu, spu_pointer_to_address,
spu_analyze_prologue, spu_in_function_epilogue_p,
spu_frame_unwind_cache, spu_push_dummy_call, spu_software_single_step,
spu_get_longjmp_target, spu_get_overlay_table, spu_overlay_update_osect,
info_spu_signal_command, info_spu_mailbox_list, info_spu_dma_cmdlist,
info_spu_dma_command, info_spu_proxydma_command): Update.
* stack.c (print_frame_nameless_args, frame_info): Update.
* symfile.c (read_target_long_array, simple_read_overlay_table,
simple_read_overlay_region_table): Update.
* target.c (debug_print_register): Update.
* tramp-frame.c (tramp_frame_start): Update.
* v850-tdep.c (v850_analyze_prologue, v850_push_dummy_call,
v850_extract_return_value, v850_store_return_value,
* valarith.c (value_binop, value_bit_index): Update.
* valops.c (value_cast): Update.
* valprint.c (val_print_type_code_int, val_print_string,
read_string): Update.
* value.c (unpack_long, unpack_double, unpack_field_as_long,
modify_field, pack_long): Update.
* vax-tdep.c (vax_store_arguments, vax_push_dummy_call,
vax_skip_prologue): Update.
* xstormy16-tdep.c (xstormy16_push_dummy_call,
xstormy16_analyze_prologue, xstormy16_in_function_epilogue_p,
xstormy16_resolve_jmp_table_entry, xstormy16_find_jmp_table_entry,
xstormy16_pointer_to_address, xstormy16_address_to_pointer): Update.
* xtensa-tdep.c (extract_call_winsize, xtensa_pseudo_register_read,
xtensa_pseudo_register_write, xtensa_frame_cache,
xtensa_push_dummy_call, call0_track_op, call0_frame_cache): Update.
* dfp.h (decimal_to_string, decimal_from_string, decimal_from_integral,
decimal_from_floating, decimal_to_doublest, decimal_is_zero): Add
BYTE_ORDER parameter.
(decimal_binop): Add BYTE_ORDER_X, BYTE_ORDER_Y, and BYTE_ORDER_RESULT
parameters.
(decimal_compare): Add BYTE_ORDER_X and BYTE_ORDER_Y parameters.
(decimal_convert): Add BYTE_ORDER_FROM and BYTE_ORDER_TO parameters.
* dfp.c (match_endianness): Add BYTE_ORDER parameter. Use it
instead of current_gdbarch.
(decimal_to_string, decimal_from_integral, decimal_from_floating,
decimal_to_doublest, decimal_is_zero): Add BYTE_ORDER parameter.
Pass it to match_endianness.
(decimal_binop): Add BYTE_ORDER_X, BYTE_ORDER_Y, and BYTE_ORDER_RESULT
parameters. Pass them to match_endianness.
(decimal_compare): Add BYTE_ORDER_X and BYTE_ORDER_Y parameters.
Pass them to match_endianness.
(decimal_convert): Add BYTE_ORDER_FROM and BYTE_ORDER_TO parameters.
Pass them to match_endianness.
* valarith.c (value_args_as_decimal): Add BYTE_ORDER_X and
BYTE_ORDER_Y output parameters.
(value_binop): Update call to value_args_as_decimal.
Update calls to decimal_to_string, decimal_from_string,
decimal_from_integral, decimal_from_floating, decimal_to_doublest,
decimal_is_zero, decimal_binop, decimal_compare and decimal_convert
to pass/receive byte order:
* c-exp.y (parse_number): Update.
* printcmd.c (printf_command): Update.
* valarith.c (value_args_as_decimal, value_binop, value_logical_not,
value_equal, value_less): Update.
* valops.c (value_cast, value_one): Update.
* valprint.c (print_decimal_floating): Update.
* value.c (unpack_long, unpack_double): Update.
* python/python-value.c (valpy_nonzero): Update.
* ada-valprint.c (char_at): Add BYTE_ORDER parameter.
(printstr): Update calls to char_at.
(ada_val_print_array): Likewise.
* valprint.c (read_string): Add BYTE_ORDER parameter.
(val_print_string): Update call to read_string.
* c-lang.c (c_get_string): Likewise.
* charset.h (target_wide_charset): Add BYTE_ORDER parameter.
* charset.c (target_wide_charset): Add BYTE_ORDER parameter.
Use it instead of current_gdbarch.
* printcmd.c (printf_command): Update calls to target_wide_charset.
* c-lang.c (charset_for_string_type): Add BYTE_ORDER parameter.
Pass to target_wide_charset. Use it instead of current_gdbarch.
(classify_type): Add BYTE_ORDER parameter. Pass to
charset_for_string_type. Allow NULL encoding pointer.
(print_wchar): Add BYTE_ORDER parameter.
(c_emit_char): Update calls to classify_type and print_wchar.
(c_printchar, c_printstr): Likewise.
* gdbarch.sh (in_solib_return_trampoline): Convert to type "m".
* gdbarch.c, gdbarch.h: Regenerate.
* arch-utils.h (generic_in_solib_return_trampoline): Add GDBARCH
parameter.
* arch-utils.c (generic_in_solib_return_trampoline): Likewise.
* hppa-hpux-tdep.c (hppa_hpux_in_solib_return_trampoline): Likewise.
* rs6000-tdep.c (rs6000_in_solib_return_trampoline): Likewise.
(rs6000_skip_trampoline_code): Update call.
* alpha-tdep.h (struct gdbarch_tdep): Add GDBARCH parameter to
dynamic_sigtramp_offset and pc_in_sigtramp callbacks.
(alpha_read_insn): Add GDBARCH parameter.
* alpha-tdep.c (alpha_lds, alpha_sts): Add GDBARCH parameter.
(alpha_register_to_value): Pass architecture to alpha_sts.
(alpha_extract_return_value): Likewise.
(alpha_value_to_register): Pass architecture to alpha_lds.
(alpha_store_return_value): Likewise.
(alpha_read_insn): Add GDBARCH parameter.
(alpha_skip_prologue): Pass architecture to alpha_read_insn.
(alpha_heuristic_proc_start): Likewise.
(alpha_heuristic_frame_unwind_cache): Likewise.
(alpha_next_pc): Likewise.
(alpha_sigtramp_frame_this_id): Pass architecture to
tdep->dynamic_sigtramp_offset callback.
(alpha_sigtramp_frame_sniffer): Pass architecture to
tdep->pc_in_sigtramp callback.
* alphafbsd-tdep.c (alphafbsd_pc_in_sigtramp): Add GDBARCH parameter.
(alphafbsd_sigtramp_offset): Likewise.
* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): Add GDBARCH
parameter. Pass to alpha_read_insn.
(alpha_linux_sigtramp_offset): Add GDBARCH parameter. Pass to
alpha_linux_sigtramp_offset_1.
(alpha_linux_pc_in_sigtramp): Add GDBARCH parameter. Pass to
alpha_linux_sigtramp_offset.
(alpha_linux_sigcontext_addr): Pass architecture to alpha_read_insn
and alpha_linux_sigtramp_offset.
* alphanbsd-tdep.c (alphanbsd_sigtramp_offset): Add GDBARCH parameter.
(alphanbsd_pc_in_sigtramp): Add GDBARCH parameter. Pass to
alphanbsd_sigtramp_offset.
* alphaobsd-tdep.c (alphaobsd_sigtramp_offset): Add GDBARCH parameter.
(alphaobsd_pc_in_sigtramp): Add GDBARCH parameter. Pass to
alpha_read_insn.
(alphaobsd_sigcontext_addr): Pass architecture to
alphaobsd_sigtramp_offset.
* alpha-osf1-tdep.c (alpha_osf1_pc_in_sigtramp): Add GDBARCH
parameter.
* amd64-tdep.c (amd64_analyze_prologue): Add GDBARCH parameter.
(amd64_skip_prologue): Pass architecture to amd64_analyze_prologue.
(amd64_frame_cache): Likewise.
* arm-tdep.c (SWAP_SHORT, SWAP_INT): Remove.
(thumb_analyze_prologue, arm_skip_prologue, arm_scan_prologue,
thumb_get_next_pc, arm_get_next_pc): Do not use SWAP_ macros.
* arm-wince-tdep.c: Include "frame.h".
* avr-tdep.c (EXTRACT_INSN): Remove.
(avr_scan_prologue): Add GDBARCH argument, inline EXTRACT_INSN.
(avr_skip_prologue): Pass architecture to avr_scan_prologue.
(avr_frame_unwind_cache): Likewise.
* cris-tdep.c (struct instruction_environment): Add BYTE_ORDER member.
(find_step_target): Initialize it.
(get_data_from_address): Add BYTE_ORDER parameter.
(bdap_prefix): Pass byte order to get_data_from_address.
(handle_prefix_assign_mode_for_aritm_op): Likewise.
(three_operand_add_sub_cmp_and_or_op): Likewise.
(handle_inc_and_index_mode_for_aritm_op): Likewise.
* frv-linux-tdep.c (frv_linux_pc_in_sigtramp): Add GDBARCH parameter.
(frv_linux_sigcontext_reg_addr): Pass architecture to
frv_linux_pc_in_sigtramp.
(frv_linux_sigtramp_frame_sniffer): Likewise.
* h8300-tdep.c (h8300_is_argument_spill): Add GDBARCH parameter.
(h8300_analyze_prologue): Add GDBARCH parameter. Pass to
h8300_is_argument_spill.
(h8300_frame_cache, h8300_skip_prologue): Pass architecture
to h8300_analyze_prologue.
* hppa-tdep.h (struct gdbarch_tdep): Add GDBARCH parameter to
in_solib_call_trampoline callback.
(hppa_in_solib_call_trampoline): Add GDBARCH parameter.
* hppa-tdep.c (hppa64_convert_code_addr_to_fptr): Add GDBARCH
parameter.
(hppa64_push_dummy_call): Pass architecture to
hppa64_convert_code_addr_to_fptr.
(hppa_match_insns): Add GDBARCH parameter.
(hppa_match_insns_relaxed): Add GDBARCH parameter. Pass to
hppa_match_insns.
(hppa_skip_trampoline_code): Pass architecture to hppa_match_insns.
(hppa_in_solib_call_trampoline): Add GDBARCH parameter. Pass to
hppa_match_insns_relaxed.
(hppa_stub_unwind_sniffer): Pass architecture to
tdep->in_solib_call_trampoline callback.
* hppa-hpux-tdep.c (hppa_hpux_search_pattern): Add GDBARCH parameter.
(hppa32_hpux_search_dummy_call_sequence): Pass architecture to
hppa_hpux_search_pattern.
* hppa-linux-tdep.c (insns_match_pattern): Add GDBARCH parameter.
(hppa_linux_sigtramp_find_sigcontext): Add GDBARCH parameter.
Pass to insns_match_pattern.
(hppa_linux_sigtramp_frame_unwind_cache): Pass architecture to
hppa_linux_sigtramp_find_sigcontext.
(hppa_linux_sigtramp_frame_sniffer): Likewise.
(hppa32_hpux_in_solib_call_trampoline): Add GDBARCH parameter.
(hppa64_hpux_in_solib_call_trampoline): Likewise.
* i386-tdep.c (i386_follow_jump): Add GDBARCH parameter.
(i386_analyze_frame_setup): Add GDBARCH parameter.
(i386_analyze_prologue): Add GDBARCH parameter. Pass to
i386_follow_jump and i386_analyze_frame_setup.
(i386_skip_prologue): Pass architecture to i386_analyze_prologue
and i386_follow_jump.
(i386_frame_cache): Pass architecture to i386_analyze_prologue.
(i386_pe_skip_trampoline_code): Add FRAME parameter.
* i386-tdep.h (i386_pe_skip_trampoline_code): Add FRAME parameter.
* i386-cygwin-tdep.c (i386_cygwin_skip_trampoline_code): Pass
frame to i386_pe_skip_trampoline_code.
* ia64-tdep.h (struct gdbarch_tdep): Add GDBARCH parameter
to sigcontext_register_address callback.
* ia64-tdep.c (ia64_find_global_pointer): Add GDBARCH parameter.
(ia64_find_unwind_table): Pass architecture to
ia64_find_global_pointer.
(find_extant_func_descr): Add GDBARCH parameter.
(find_func_descr): Pass architecture to find_extant_func_descr
and ia64_find_global_pointer.
(ia64_sigtramp_frame_init_saved_regs): Pass architecture to
tdep->sigcontext_register_address callback.
* ia64-linux-tdep.c (ia64_linux_sigcontext_register_address): Add
GDBARCH parameter.
* iq2000-tdep.c (iq2000_scan_prologue): Add GDBARCH parameter.
(iq2000_frame_cache): Pass architecture to iq2000_scan_prologue.
* lm32-tdep.c (lm32_analyze_prologue): Add GDBARCH parameter.
(lm32_skip_prologue, lm32_frame_cache): Pass architecture to
lm32_analyze_prologue.
* m32r-tdep.c (decode_prologue): Add GDBARCH parameter.
(m32r_skip_prologue): Pass architecture to decode_prologue.
* m68hc11-tdep.c (m68hc11_analyze_instruction): Add GDBARCH parameter.
(m68hc11_scan_prologue): Pass architecture to
m68hc11_analyze_instruction.
* m68k-tdep.c (m68k_analyze_frame_setup): Add GDBARCH parameter.
(m68k_analyze_prologue): Pass architecture to
m68k_analyze_frame_setup.
* m88k-tdep.c (m88k_fetch_instruction): Add BYTE_ORDER parameter.
(m88k_analyze_prologue): Add GDBARCH parameter. Pass byte order
to m88k_fetch_instruction.
(m88k_skip_prologue): Pass architecture to m88k_analyze_prologue.
(m88k_frame_cache): Likewise.
* mep-tdep.c (mep_get_insn): Add GDBARCH parameter.
(mep_analyze_prologue): Pass architecture to mep_get_insn.
* mips-tdep.c (mips_fetch_instruction): Add GDBARCH parameter.
(mips32_next_pc): Pass architecture to mips_fetch_instruction.
(deal_with_atomic_sequence): Likewise.
(unpack_mips16): Add GDBARCH parameter, pass to mips_fetch_instruction.
(mips16_scan_prologue): Likewise.
(mips32_scan_prologue): Likewise.
(mips16_in_function_epilogue_p): Likewise.
(mips32_in_function_epilogue_p): Likewise.
(mips_about_to_return): Likewise.
(mips_insn16_frame_cache): Pass architecture to mips16_scan_prologue.
(mips_insn32_frame_cache): Pass architecture to mips32_scan_prologue.
(mips_skip_prologue): Pass architecture to mips16_scan_prologue
and mips32_scan_prologue.
(mips_in_function_epilogue_p): Pass architecture to
mips16_in_function_epilogue_p and
mips32_in_function_epilogue_p.
(heuristic_proc_start): Pass architecture to mips_fetch_instruction
and mips_about_to_return.
(mips_skip_mips16_trampoline_code): Pass architecture to
mips_fetch_instruction.
(fetch_mips_16): Add GDBARCH parameter.
(mips16_next_pc): Pass architecture to fetch_mips_16.
(extended_mips16_next_pc): Pass architecture to unpack_mips16 and
fetch_mips_16.
* objc-lang.c (read_objc_method, read_objc_methlist_nmethods,
read_objc_methlist_method, read_objc_object, read_objc_super,
read_objc_class): Add GDBARCH parameter.
(find_implementation_from_class): Add GDBARCH parameter, pass
to read_objc_class, read_objc_methlist_nmethods, and
read_objc_methlist_method.
(find_implementation): Add GDBARCH parameter, pass to
read_objc_object and find_implementation_from_class.
(resolve_msgsend, resolve_msgsend_stret): Pass architecture
to find_implementation.
(resolve_msgsend_super, resolve_msgsend_super_stret): Pass
architecture to read_objc_super and find_implementation_from_class.
* ppc64-linux-tdep.c (ppc64_desc_entry_point): Add GDBARCH parameter.
(ppc64_standard_linkage1_target, ppc64_standard_linkage2_target,
ppc64_standard_linkage3_target): Pass architecture to
ppc64_desc_entry_point.
* rs6000-tdep.c (bl_to_blrl_insn_p): Add BYTE_ORDER parameter.
(skip_prologue): Pass byte order to bl_to_blrl_insn_p.
(rs6000_fetch_instruction): Add GDBARCH parameter.
(rs6000_skip_stack_check): Add GDBARCH parameter, pass to
rs6000_fetch_instruction.
(skip_prologue): Pass architecture to rs6000_fetch_instruction.
* remote-mips.c (mips_store_word): Return old_contents as host
integer value instead of target bytes.
* s390-tdep.c (struct s390_prologue_data): Add BYTE_ORDER member.
(s390_analyze_prologue): Initialize it.
(extend_simple_arg): Add GDBARCH parameter.
(s390_push_dummy_call): Pass architecture to extend_simple_arg.
* scm-lang.c (scm_get_field): Add BYTE_ORDER parameter.
* scm-lang.h (scm_get_field): Add BYTE_ORDER parameter.
(SCM_CAR, SCM_CDR): Pass SCM_BYTE_ORDER to scm_get_field.
* scm-valprint.c (scm_scmval_print): Likewise.
(scm_scmlist_print, scm_ipruk, scm_scmval_print): Define
SCM_BYTE_ORDER.
* sh64-tdep.c (look_for_args_moves): Add GDBARCH parameter.
(sh64_skip_prologue_hard_way): Add GDBARCH parameter, pass to
look_for_args_moves.
(sh64_skip_prologue): Pass architecture to
sh64_skip_prologue_hard_way.
* sh-tdep.c (sh_analyze_prologue): Add GDBARCH parameter.
(sh_skip_prologue): Pass architecture to sh_analyze_prologue.
(sh_frame_cache): Likewise.
* solib-irix.c (extract_mips_address): Add GDBARCH parameter.
(fetch_lm_info, irix_current_sos, irix_open_symbol_file_object):
Pass architecture to extract_mips_address.
* sparc-tdep.h (sparc_fetch_wcookie): Add GDBARCH parameter.
* sparc-tdep.c (sparc_fetch_wcookie): Add GDBARCH parameter.
(sparc_supply_rwindow, sparc_collect_rwindow): Pass architecture
to sparc_fetch_wcookie.
(sparc32_frame_prev_register): Likewise.
* sparc64-tdep.c (sparc64_frame_prev_register): Likewise.
* sparc32nbsd-tdep.c (sparc32nbsd_sigcontext_saved_regs): Likewise.
* sparc64nbsd-tdep.c (sparc64nbsd_sigcontext_saved_regs): Likewise.
* spu-tdep.c (spu_analyze_prologue): Add GDBARCH parameter.
(spu_skip_prologue): Pass architecture to spu_analyze_prologue.
(spu_virtual_frame_pointer): Likewise.
(spu_frame_unwind_cache): Likewise.
(info_spu_mailbox_list): Add BYTE_ORER parameter.
(info_spu_mailbox_command): Pass byte order to info_spu_mailbox_list.
(info_spu_dma_cmdlist): Add BYTE_ORER parameter.
(info_spu_dma_command, info_spu_proxydma_command): Pass byte order
to info_spu_dma_cmdlist.
* symfile.c (read_target_long_array): Add GDBARCH parameter.
(simple_read_overlay_table, simple_read_overlay_region_table,
simple_overlay_update_1): Pass architecture to read_target_long_array.
* v850-tdep.c (v850_analyze_prologue): Add GDBARCH parameter.
(v850_frame_cache): Pass architecture to v850_analyze_prologue.
* xstormy16-tdep.c (xstormy16_analyze_prologue): Add GDBARCH
parameter.
(xstormy16_skip_prologue, xstormy16_frame_cache): Pass architecture
to xstormy16_analyze_prologue.
(xstormy16_resolve_jmp_table_entry): Add GDBARCH parameter.
(xstormy16_find_jmp_table_entry): Likewise.
(xstormy16_skip_trampoline_code): Pass architecture to
xstormy16_resolve_jmp_table_entry.
(xstormy16_pointer_to_address): Likewise.
(xstormy16_address_to_pointer): Pass architecture to
xstormy16_find_jmp_table_entry.
* xtensa-tdep.c (call0_track_op): Add GDBARCH parameter.
(call0_analyze_prologue): Add GDBARCH parameter, pass to
call0_track_op.
(call0_frame_cache): Pass architecture to call0_analyze_prologue.
(xtensa_skip_prologue): Likewise.
2009-07-02 19:25:59 +02:00
|
|
|
|
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
2007-10-22 16:03:37 +02:00
|
|
|
|
int i, size = register_size (gdbarch, regno);
|
Use gdb_byte for bytes from the program being debugged.
gdb_byte should be used for bytes from the program being debugged. We
have many places using char or unsigned char instead all over the
existing ports, and more ends up added over time due to copy/paste as
new code is based on old code.
I've greped the tree for "char buf[", and fixed all I found.
Tested by building with --enable-targets=all.
2013-03-01 Pedro Alves <palves@redhat.com>
Use gdb_byte for bytes from the program being debugged.
* arm-tdep.c (arm_store_return_value, arm_get_longjmp_target):
Change type of local 'buf' to gdb_byte.
* avr-tdep.c (avr_frame_prev_register, avr_push_dummy_call): Likewise.
* bfin-tdep.c (bfin_push_dummy_call): Likewise.
* cris-tdep.c (cris_sigcontext_addr)
(cris_sigtramp_frame_unwind_cache): Likewise.
* frv-linux-tdep.c (frv_linux_pc_in_sigtramp)
(frv_linux_sigcontext_reg_addr, frv_linux_sigtramp_frame_cache):
Likewise.
* frv-tdep.c (frv_pseudo_register_write, frv_analyze_prologue): Likewise.
* hppa-hpux-tdep.c (hppa32_hpux_find_global_pointer)
(hppa32_hpux_search_dummy_call_sequence)
(hppa_hpux_supply_save_state): Likewise.
* hppa-linux-tdep.c (insns_match_pattern)
(hppa_linux_find_global_pointer): Likewise.
* hppa-tdep.c (hppa_in_function_epilogue_p)
(skip_prologue_hard_way, hppa_frame_cache): Likewise.
* i386-nto-tdep.c (i386nto_sigcontext_addr): Likewise.
* i386fbsd-tdep.c (i386fbsd_supply_uthread)
(i386fbsd_collect_uthread): Likewise.
* ia64-hpux-tdep.c (ia64_hpux_push_dummy_code): Likewise.
* ia64-linux-tdep.c (ia64_linux_sigcontext_register_address): Likewise.
* ia64-tdep.c (examine_prologue, ia64_frame_cache)
(ia64_frame_prev_register, ia64_sigtramp_frame_cache)
(ia64_sigtramp_frame_prev_register, ia64_access_reg)
(ia64_access_rse_reg, ia64_libunwind_frame_this_id)
(ia64_libunwind_frame_prev_register)
(ia64_libunwind_sigtramp_frame_this_id)
(ia64_find_global_pointer_from_dynamic_section)
(find_extant_func_descr, find_func_descr, ia64_dummy_id)
(ia64_unwind_pc): Likewise.
* iq2000-tdep.c (iq2000_store_return_value): Likewise.
* m68hc11-tdep.c (m68hc11_push_dummy_call)
(m68hc11_extract_return_value): Likewise.
* m68klinux-nat.c (fetch_register, store_register): Likewise.
* mep-tdep.c (mep_pseudo_cr32_read, mep_pseudo_cr32_write)
(mep_get_insn, mep_push_dummy_call): Likewise.
* mips-linux-tdep.c (mips_linux_get_longjmp_target)
(mips_linux_in_dynsym_stub): Likewise.
* mn10300-tdep.c (mep_pseudo_cr32_write): Likewise.
* ppc-linux-nat.c (fetch_register, store_register): Likewise.
* regcache.c (dump_endian_bytes): Change type of parameter 'buf'
to gdb_byte.
* remote-mips.c (mips_set_register): Likewise.
* remote-sim.c (gdbsim_fetch_register): Likewise.
* score-tdep.c (score7_fetch_inst): Change type of parameter
'memblock' and local 'buf' to gdb_byte.
(score7_malloc_and_get_memblock): Change return type to gdb_byte.
Change type of local 'buf' to gdb_byte. Adjust.
(score7_adjust_memblock_ptr): Change type of parameter 'memblock'
to gdb_byte**.
(score7_analyze_prologue): Change type of 'memblock' and
'memblock_ptr' locals to gdb_byte*.
* sh64-tdep.c (sh64_extract_return_value)
(sh64_store_return_value): Change type of local 'buf' to gdb_byte.
* solib-darwin.c (darwin_current_sos, darwin_read_exec_load_addr):
* solib-pa64.c (pa64_solib_create_inferior_hook)
(pa64_open_symbol_file_object): Remove local 'buf'.
* solib-som.c (som_solib_create_inferior_hook, link_map_start)
(som_open_symbol_file_object): Likewise.
* solib-spu.c (spu_current_sos): Likewise.
* spu-linux-nat.c (spu_fetch_inferior_registers): Likewise.
* spu-multiarch.c (parse_spufs_run, spu_fetch_registers)
(spu_store_registers): Likewise.
* target.c (debug_print_register): Likewise.
* tic6x-tdep.c (tic6x_get_longjmp_target): Likewise.
* xstormy16-tdep.c (xstormy16_store_return_value)
(xstormy16_push_dummy_call, xstormy16_resolve_jmp_table_entry)
(xstormy16_find_jmp_table_entry): Likewise.
2013-03-01 16:38:27 +01:00
|
|
|
|
gdb_byte buf[MAX_REGISTER_SIZE];
|
2010-05-17 03:15:20 +02:00
|
|
|
|
|
2008-08-26 14:42:00 +02:00
|
|
|
|
regcache_raw_collect (regcache, regno, buf);
|
2002-05-04 16:19:21 +02:00
|
|
|
|
fprintf_unfiltered (gdb_stdlog, " = ");
|
2007-04-29 03:51:51 +02:00
|
|
|
|
for (i = 0; i < size; i++)
|
2002-05-04 16:19:21 +02:00
|
|
|
|
{
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]);
|
|
|
|
|
}
|
2007-04-29 03:51:51 +02:00
|
|
|
|
if (size <= sizeof (LONGEST))
|
2002-05-04 16:19:21 +02:00
|
|
|
|
{
|
* defs.h (extract_signed_integer, extract_unsigned_integer,
extract_long_unsigned_integer, store_signed_integer,
store_unsigned_integer): Add BYTE_ORDER parameter.
* findvar.c (extract_signed_integer, extract_unsigned_integer,
extract_long_unsigned_integer, store_signed_integer,
store_unsigned_integer): Add BYTE_ORDER parameter. Use it
instead of current_gdbarch.
* gdbcore.h (read_memory_integer, safe_read_memory_integer,
read_memory_unsigned_integer, write_memory_signed_integer,
write_memory_unsigned_integer): Add BYTE_ORDER parameter.
* corefile.c (struct captured_read_memory_integer_arguments): Add
BYTE_ORDER member.
(safe_read_memory_integer): Add BYTE_ORDER parameter. Store it into
struct captured_read_memory_integer_arguments.
(do_captured_read_memory_integer): Pass it to read_memory_integer.
(read_memory_integer): Add BYTE_ORDER parameter. Pass it to
extract_signed_integer.
(read_memory_unsigned_integer): Add BYTE_ORDER parameter. Pass it to
extract_unsigned_integer.
(write_memory_signed_integer): Add BYTE_ORDER parameter. Pass it
to store_signed_integer.
(write_memory_unsigned_integer): Add BYTE_ORDER parameter. Pass it
to store_unsigned_integer.
* target.h (get_target_memory_unsigned): Add BYTE_ORDER parameter.
* target.c (get_target_memory_unsigned): Add BYTE_ORDER parameter.
Pass it to extract_unsigned_integer.
Update calls to extract_signed_integer, extract_unsigned_integer,
extract_long_unsigned_integer, store_signed_integer,
store_unsigned_integer, read_memory_integer,
read_memory_unsigned_integer, safe_read_memory_integer,
write_memory_signed_integer, write_memory_unsigned_integer, and
get_target_memory_unsigned to pass byte order:
* ada-lang.c (ada_value_binop): Update.
* ada-valprint.c (char_at): Update.
* alpha-osf1-tdep.c (alpha_osf1_sigcontext_addr): Update.
* alpha-tdep.c (alpha_lds, alpha_sts, alpha_push_dummy_call,
alpha_extract_return_value, alpha_read_insn,
alpha_get_longjmp_target): Update.
* amd64-linux-tdep.c (amd64_linux_sigcontext_addr): Update.
* amd64obsd-tdep.c (amd64obsd_supply_uthread,
amd64obsd_collect_uthread, amd64obsd_trapframe_cache): Update.
* amd64-tdep.c (amd64_push_dummy_call, amd64_analyze_prologue,
amd64_frame_cache, amd64_sigtramp_frame_cache, fixup_riprel,
amd64_displaced_step_fixup): Update.
* arm-linux-tdep.c (arm_linux_sigreturn_init,
arm_linux_rt_sigreturn_init, arm_linux_supply_gregset): Update.
* arm-tdep.c (thumb_analyze_prologue, arm_skip_prologue,
arm_scan_prologue, arm_push_dummy_call, thumb_get_next_pc,
arm_get_next_pc, arm_extract_return_value, arm_store_return_value,
arm_return_value): Update.
* arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update.
* auxv.c (default_auxv_parse): Update.
* avr-tdep.c (avr_address_to_pointer, avr_pointer_to_address,
avr_scan_prologue, avr_extract_return_value,
avr_frame_prev_register, avr_push_dummy_call): Update.
* bsd-uthread.c (bsd_uthread_check_magic, bsd_uthread_lookup_offset,
bsd_uthread_wait, bsd_uthread_thread_alive,
bsd_uthread_extra_thread_info): Update.
* c-lang.c (c_printstr, print_wchar): Update.
* cp-valprint.c (cp_print_class_member): Update.
* cris-tdep.c (cris_sigcontext_addr, cris_sigtramp_frame_unwind_cache,
cris_push_dummy_call, cris_scan_prologue, cris_store_return_value,
cris_extract_return_value, find_step_target, dip_prefix,
sixteen_bit_offset_branch_op, none_reg_mode_jump_op,
move_mem_to_reg_movem_op, get_data_from_address): Update.
* dwarf2expr.c (dwarf2_read_address, execute_stack_op): Update.
* dwarf2-frame.c (execute_cfa_program): Update.
* dwarf2loc.c (find_location_expression): Update.
* dwarf2read.c (dwarf2_const_value): Update.
* expprint.c (print_subexp_standard): Update.
* findvar.c (unsigned_pointer_to_address, signed_pointer_to_address,
unsigned_address_to_pointer, address_to_signed_pointer,
read_var_value): Update.
* frame.c (frame_unwind_register_signed,
frame_unwind_register_unsigned, get_frame_memory_signed,
get_frame_memory_unsigned): Update.
* frame-unwind.c (frame_unwind_got_constant): Update.
* frv-linux-tdep.c (frv_linux_pc_in_sigtramp,
frv_linux_sigcontext_reg_addr, frv_linux_sigtramp_frame_cache):
Update.
* frv-tdep.c (frv_analyze_prologue, frv_skip_main_prologue,
frv_extract_return_value, find_func_descr,
frv_convert_from_func_ptr_addr, frv_push_dummy_call): Update.
* f-valprint.c (f_val_print): Update.
* gnu-v3-abi.c (gnuv3_decode_method_ptr, gnuv3_make_method_ptr):
Update.
* h8300-tdep.c (h8300_is_argument_spill, h8300_analyze_prologue,
h8300_push_dummy_call, h8300_extract_return_value,
h8300h_extract_return_value, h8300_store_return_value,
h8300h_store_return_value): Update.
* hppabsd-tdep.c (hppabsd_find_global_pointer): Update.
* hppa-hpux-nat.c (hppa_hpux_fetch_register, hppa_hpux_store_register):
Update.
* hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline,
hppa64_hpux_in_solib_call_trampoline,
hppa_hpux_in_solib_return_trampoline, hppa_hpux_skip_trampoline_code,
hppa_hpux_sigtramp_frame_unwind_cache,
hppa_hpux_sigtramp_unwind_sniffer, hppa32_hpux_find_global_pointer,
hppa64_hpux_find_global_pointer, hppa_hpux_search_pattern,
hppa32_hpux_search_dummy_call_sequence,
hppa64_hpux_search_dummy_call_sequence, hppa_hpux_supply_save_state,
hppa_hpux_unwind_adjust_stub): Update.
* hppa-linux-tdep.c (insns_match_pattern,
hppa_linux_find_global_pointer): Update.
* hppa-tdep.c (hppa_in_function_epilogue_p, hppa32_push_dummy_call,
hppa64_convert_code_addr_to_fptr, hppa64_push_dummy_call,
skip_prologue_hard_way, hppa_frame_cache, hppa_fallback_frame_cache,
hppa_pseudo_register_read, hppa_frame_prev_register_helper,
hppa_match_insns): Update.
* hpux-thread.c (hpux_thread_fetch_registers): Update.
* i386-tdep.c (i386bsd_sigcontext_addr): Update.
* i386-cygwin-tdep.c (core_process_module_section): Update.
* i386-darwin-nat.c (i386_darwin_sstep_at_sigreturn,
amd64_darwin_sstep_at_sigreturn): Update.
* i386-darwin-tdep.c (i386_darwin_sigcontext_addr,
amd64_darwin_sigcontext_addr): Likewise.
* i386-linux-nat.c (i386_linux_sigcontext_addr): Update.
* i386nbsd-tdep.c (i386nbsd_sigtramp_cache_init): Update.
* i386-nto-tdep.c (i386nto_sigcontext_addr): Update.
* i386obsd-nat.c (i386obsd_supply_pcb): Update.
* i386obsd-tdep.c (i386obsd_supply_uthread, i386obsd_collect_uthread,
i386obsd_trapframe_cache): Update.
* i386-tdep.c (i386_displaced_step_fixup, i386_follow_jump,
i386_analyze_frame_setup, i386_analyze_prologue,
i386_skip_main_prologue, i386_frame_cache, i386_sigtramp_frame_cache,
i386_get_longjmp_target, i386_push_dummy_call,
i386_pe_skip_trampoline_code, i386_svr4_sigcontext_addr,
i386_fetch_pointer_argument): Update.
* i387-tdep.c (i387_supply_fsave): Update.
* ia64-linux-tdep.c (ia64_linux_sigcontext_register_address): Update.
* ia64-tdep.c (ia64_pseudo_register_read, ia64_pseudo_register_write,
examine_prologue, ia64_frame_cache, ia64_frame_prev_register,
ia64_sigtramp_frame_cache, ia64_sigtramp_frame_prev_register,
ia64_access_reg, ia64_access_rse_reg, ia64_libunwind_frame_this_id,
ia64_libunwind_frame_prev_register,
ia64_libunwind_sigtramp_frame_this_id,
ia64_libunwind_sigtramp_frame_prev_register, ia64_find_global_pointer,
find_extant_func_descr, find_func_descr,
ia64_convert_from_func_ptr_addr, ia64_push_dummy_call, ia64_dummy_id,
ia64_unwind_pc): Update.
* iq2000-tdep.c (iq2000_pointer_to_address, iq2000_address_to_pointer,
iq2000_scan_prologue, iq2000_extract_return_value,
iq2000_push_dummy_call): Update.
* irix5nat.c (fill_gregset): Update.
* jv-lang.c (evaluate_subexp_java): Update.
* jv-valprint.c (java_value_print): Update.
* lm32-tdep.c (lm32_analyze_prologue, lm32_push_dummy_call,
lm32_extract_return_value, lm32_store_return_value): Update.
* m32c-tdep.c (m32c_push_dummy_call, m32c_return_value,
m32c_skip_trampoline_code, m32c_m16c_address_to_pointer,
m32c_m16c_pointer_to_address): Update.
* m32r-tdep.c (m32r_store_return_value, decode_prologue,
m32r_skip_prologue, m32r_push_dummy_call, m32r_extract_return_value):
Update.
* m68hc11-tdep.c (m68hc11_pseudo_register_read,
m68hc11_pseudo_register_write, m68hc11_analyze_instruction,
m68hc11_push_dummy_call): Update.
* m68linux-tdep.c (m68k_linux_pc_in_sigtramp,
m68k_linux_get_sigtramp_info, m68k_linux_sigtramp_frame_cache):
Update.
* m68k-tdep.c (m68k_push_dummy_call, m68k_analyze_frame_setup,
m68k_analyze_register_saves, m68k_analyze_prologue, m68k_frame_cache,
m68k_get_longjmp_target): Update.
* m88k-tdep.c (m88k_fetch_instruction): Update.
* mep-tdep.c (mep_pseudo_cr32_read, mep_pseudo_csr_write,
mep_pseudo_cr32_write, mep_get_insn, mep_push_dummy_call): Update.
* mi/mi-main.c (mi_cmd_data_write_memory): Update.
* mips-linux-tdep.c (mips_linux_get_longjmp_target, supply_32bit_reg,
mips64_linux_get_longjmp_target, mips64_fill_gregset,
mips64_fill_fpregset, mips_linux_in_dynsym_stub): Update.
* mipsnbdsd-tdep.c (mipsnbsd_get_longjmp_target): Update.
* mips-tdep.c (mips_fetch_instruction, fetch_mips_16,
mips_eabi_push_dummy_call, mips_n32n64_push_dummy_call,
mips_o32_push_dummy_call, mips_o64_push_dummy_call,
mips_single_step_through_delay, mips_skip_pic_trampoline_code,
mips_integer_to_address): Update.
* mn10300-tdep.c (mn10300_analyze_prologue, mn10300_push_dummy_call):
Update.
* monitor.c (monitor_supply_register, monitor_write_memory,
monitor_read_memory_single): Update.
* moxie-tdep.c (moxie_store_return_value, moxie_extract_return_value,
moxie_analyze_prologue): Update.
* mt-tdep.c (mt_return_value, mt_skip_prologue, mt_select_coprocessor,
mt_pseudo_register_read, mt_pseudo_register_write, mt_registers_info,
mt_push_dummy_call): Update.
* objc-lang.c (read_objc_method, read_objc_methlist_nmethods,
read_objc_methlist_method, read_objc_object, read_objc_super,
read_objc_class, find_implementation_from_class): Update.
* ppc64-linux-tdep.c (ppc64_desc_entry_point,
ppc64_linux_convert_from_func_ptr_addr, ppc_linux_sigtramp_cache):
Update.
* ppcobsd-tdep.c (ppcobsd_sigtramp_frame_sniffer,
ppcobsd_sigtramp_frame_cache): Update.
* ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call,
do_ppc_sysv_return_value, ppc64_sysv_abi_push_dummy_call,
ppc64_sysv_abi_return_value): Update.
* ppc-linux-nat.c (ppc_linux_auxv_parse): Update.
* procfs.c (procfs_auxv_parse): Update.
* p-valprint.c (pascal_val_print): Update.
* regcache.c (regcache_raw_read_signed, regcache_raw_read_unsigned,
regcache_raw_write_signed, regcache_raw_write_unsigned,
regcache_cooked_read_signed, regcache_cooked_read_unsigned,
regcache_cooked_write_signed, regcache_cooked_write_unsigned): Update.
* remote-m32r-sdi.c (m32r_fetch_register): Update.
* remote-mips.c (mips_wait, mips_fetch_registers, mips_xfer_memory):
Update.
* rs6000-aix-tdep.c (rs6000_push_dummy_call, rs6000_return_value,
rs6000_convert_from_func_ptr_addr, branch_dest,
rs6000_software_single_step): Update.
* rs6000-tdep.c (rs6000_in_function_epilogue_p,
ppc_displaced_step_fixup, ppc_deal_with_atomic_sequence,
bl_to_blrl_insn_p, rs6000_fetch_instruction, skip_prologue,
rs6000_skip_main_prologue, rs6000_skip_trampoline_code,
rs6000_frame_cache): Update.
* s390-tdep.c (s390_pseudo_register_read, s390_pseudo_register_write,
s390x_pseudo_register_read, s390x_pseudo_register_write, s390_load,
s390_backchain_frame_unwind_cache, s390_sigtramp_frame_unwind_cache,
extend_simple_arg, s390_push_dummy_call, s390_return_value): Update.
* scm-exp.c (scm_lreadr): Update.
* scm-lang.c (scm_get_field, scm_unpack): Update.
* scm-valprint.c (scm_val_print): Update.
* score-tdep.c (score_breakpoint_from_pc, score_push_dummy_call,
score_fetch_inst): Update.
* sh64-tdep.c (look_for_args_moves, sh64_skip_prologue_hard_way,
sh64_analyze_prologue, sh64_push_dummy_call, sh64_extract_return_value,
sh64_pseudo_register_read, sh64_pseudo_register_write,
sh64_frame_prev_register): Update:
* sh-tdep.c (sh_analyze_prologue, sh_push_dummy_call_fpu,
sh_push_dummy_call_nofpu, sh_extract_return_value_nofpu,
sh_store_return_value_nofpu, sh_in_function_epilogue_p): Update.
* solib-darwin.c (darwin_load_image_infos): Update.
* solib-frv.c (fetch_loadmap, lm_base, frv_current_sos, enable_break2,
find_canonical_descriptor_in_load_object): Update.
* solib-irix.c (extract_mips_address, fetch_lm_info, irix_current_sos,
irix_open_symbol_file_object): Update.
* solib-som.c (som_solib_create_inferior_hook, link_map_start,
som_current_sos, som_open_symbol_file_object): Update.
* solib-sunos.c (SOLIB_EXTRACT_ADDRESS, LM_ADDR, LM_NEXT, LM_NAME):
Update.
* solib-svr4.c (read_program_header, scan_dyntag_auxv,
solib_svr4_r_ldsomap): Update.
* sparc64-linux-tdep.c (sparc64_linux_step_trap): Update.
* sparc64obsd-tdep.c (sparc64obsd_supply_uthread,
sparc64obsd_collect_uthread): Update.
* sparc64-tdep.c (sparc64_pseudo_register_read,
sparc64_pseudo_register_write, sparc64_supply_gregset,
sparc64_collect_gregset): Update.
* sparc-linux-tdep.c (sparc32_linux_step_trap): Update.
* sparcobsd-tdep.c (sparc32obsd_supply_uthread,
sparc32obsd_collect_uthread): Update.
* sparc-tdep.c (sparc_fetch_wcookie, sparc32_push_dummy_code,
sparc32_store_arguments, sparc32_return_value, sparc_supply_rwindow,
sparc_collect_rwindow): Update.
* spu-linux-nat.c (parse_spufs_run): Update.
* spu-tdep.c (spu_pseudo_register_read_spu,
spu_pseudo_register_write_spu, spu_pointer_to_address,
spu_analyze_prologue, spu_in_function_epilogue_p,
spu_frame_unwind_cache, spu_push_dummy_call, spu_software_single_step,
spu_get_longjmp_target, spu_get_overlay_table, spu_overlay_update_osect,
info_spu_signal_command, info_spu_mailbox_list, info_spu_dma_cmdlist,
info_spu_dma_command, info_spu_proxydma_command): Update.
* stack.c (print_frame_nameless_args, frame_info): Update.
* symfile.c (read_target_long_array, simple_read_overlay_table,
simple_read_overlay_region_table): Update.
* target.c (debug_print_register): Update.
* tramp-frame.c (tramp_frame_start): Update.
* v850-tdep.c (v850_analyze_prologue, v850_push_dummy_call,
v850_extract_return_value, v850_store_return_value,
* valarith.c (value_binop, value_bit_index): Update.
* valops.c (value_cast): Update.
* valprint.c (val_print_type_code_int, val_print_string,
read_string): Update.
* value.c (unpack_long, unpack_double, unpack_field_as_long,
modify_field, pack_long): Update.
* vax-tdep.c (vax_store_arguments, vax_push_dummy_call,
vax_skip_prologue): Update.
* xstormy16-tdep.c (xstormy16_push_dummy_call,
xstormy16_analyze_prologue, xstormy16_in_function_epilogue_p,
xstormy16_resolve_jmp_table_entry, xstormy16_find_jmp_table_entry,
xstormy16_pointer_to_address, xstormy16_address_to_pointer): Update.
* xtensa-tdep.c (extract_call_winsize, xtensa_pseudo_register_read,
xtensa_pseudo_register_write, xtensa_frame_cache,
xtensa_push_dummy_call, call0_track_op, call0_frame_cache): Update.
* dfp.h (decimal_to_string, decimal_from_string, decimal_from_integral,
decimal_from_floating, decimal_to_doublest, decimal_is_zero): Add
BYTE_ORDER parameter.
(decimal_binop): Add BYTE_ORDER_X, BYTE_ORDER_Y, and BYTE_ORDER_RESULT
parameters.
(decimal_compare): Add BYTE_ORDER_X and BYTE_ORDER_Y parameters.
(decimal_convert): Add BYTE_ORDER_FROM and BYTE_ORDER_TO parameters.
* dfp.c (match_endianness): Add BYTE_ORDER parameter. Use it
instead of current_gdbarch.
(decimal_to_string, decimal_from_integral, decimal_from_floating,
decimal_to_doublest, decimal_is_zero): Add BYTE_ORDER parameter.
Pass it to match_endianness.
(decimal_binop): Add BYTE_ORDER_X, BYTE_ORDER_Y, and BYTE_ORDER_RESULT
parameters. Pass them to match_endianness.
(decimal_compare): Add BYTE_ORDER_X and BYTE_ORDER_Y parameters.
Pass them to match_endianness.
(decimal_convert): Add BYTE_ORDER_FROM and BYTE_ORDER_TO parameters.
Pass them to match_endianness.
* valarith.c (value_args_as_decimal): Add BYTE_ORDER_X and
BYTE_ORDER_Y output parameters.
(value_binop): Update call to value_args_as_decimal.
Update calls to decimal_to_string, decimal_from_string,
decimal_from_integral, decimal_from_floating, decimal_to_doublest,
decimal_is_zero, decimal_binop, decimal_compare and decimal_convert
to pass/receive byte order:
* c-exp.y (parse_number): Update.
* printcmd.c (printf_command): Update.
* valarith.c (value_args_as_decimal, value_binop, value_logical_not,
value_equal, value_less): Update.
* valops.c (value_cast, value_one): Update.
* valprint.c (print_decimal_floating): Update.
* value.c (unpack_long, unpack_double): Update.
* python/python-value.c (valpy_nonzero): Update.
* ada-valprint.c (char_at): Add BYTE_ORDER parameter.
(printstr): Update calls to char_at.
(ada_val_print_array): Likewise.
* valprint.c (read_string): Add BYTE_ORDER parameter.
(val_print_string): Update call to read_string.
* c-lang.c (c_get_string): Likewise.
* charset.h (target_wide_charset): Add BYTE_ORDER parameter.
* charset.c (target_wide_charset): Add BYTE_ORDER parameter.
Use it instead of current_gdbarch.
* printcmd.c (printf_command): Update calls to target_wide_charset.
* c-lang.c (charset_for_string_type): Add BYTE_ORDER parameter.
Pass to target_wide_charset. Use it instead of current_gdbarch.
(classify_type): Add BYTE_ORDER parameter. Pass to
charset_for_string_type. Allow NULL encoding pointer.
(print_wchar): Add BYTE_ORDER parameter.
(c_emit_char): Update calls to classify_type and print_wchar.
(c_printchar, c_printstr): Likewise.
* gdbarch.sh (in_solib_return_trampoline): Convert to type "m".
* gdbarch.c, gdbarch.h: Regenerate.
* arch-utils.h (generic_in_solib_return_trampoline): Add GDBARCH
parameter.
* arch-utils.c (generic_in_solib_return_trampoline): Likewise.
* hppa-hpux-tdep.c (hppa_hpux_in_solib_return_trampoline): Likewise.
* rs6000-tdep.c (rs6000_in_solib_return_trampoline): Likewise.
(rs6000_skip_trampoline_code): Update call.
* alpha-tdep.h (struct gdbarch_tdep): Add GDBARCH parameter to
dynamic_sigtramp_offset and pc_in_sigtramp callbacks.
(alpha_read_insn): Add GDBARCH parameter.
* alpha-tdep.c (alpha_lds, alpha_sts): Add GDBARCH parameter.
(alpha_register_to_value): Pass architecture to alpha_sts.
(alpha_extract_return_value): Likewise.
(alpha_value_to_register): Pass architecture to alpha_lds.
(alpha_store_return_value): Likewise.
(alpha_read_insn): Add GDBARCH parameter.
(alpha_skip_prologue): Pass architecture to alpha_read_insn.
(alpha_heuristic_proc_start): Likewise.
(alpha_heuristic_frame_unwind_cache): Likewise.
(alpha_next_pc): Likewise.
(alpha_sigtramp_frame_this_id): Pass architecture to
tdep->dynamic_sigtramp_offset callback.
(alpha_sigtramp_frame_sniffer): Pass architecture to
tdep->pc_in_sigtramp callback.
* alphafbsd-tdep.c (alphafbsd_pc_in_sigtramp): Add GDBARCH parameter.
(alphafbsd_sigtramp_offset): Likewise.
* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): Add GDBARCH
parameter. Pass to alpha_read_insn.
(alpha_linux_sigtramp_offset): Add GDBARCH parameter. Pass to
alpha_linux_sigtramp_offset_1.
(alpha_linux_pc_in_sigtramp): Add GDBARCH parameter. Pass to
alpha_linux_sigtramp_offset.
(alpha_linux_sigcontext_addr): Pass architecture to alpha_read_insn
and alpha_linux_sigtramp_offset.
* alphanbsd-tdep.c (alphanbsd_sigtramp_offset): Add GDBARCH parameter.
(alphanbsd_pc_in_sigtramp): Add GDBARCH parameter. Pass to
alphanbsd_sigtramp_offset.
* alphaobsd-tdep.c (alphaobsd_sigtramp_offset): Add GDBARCH parameter.
(alphaobsd_pc_in_sigtramp): Add GDBARCH parameter. Pass to
alpha_read_insn.
(alphaobsd_sigcontext_addr): Pass architecture to
alphaobsd_sigtramp_offset.
* alpha-osf1-tdep.c (alpha_osf1_pc_in_sigtramp): Add GDBARCH
parameter.
* amd64-tdep.c (amd64_analyze_prologue): Add GDBARCH parameter.
(amd64_skip_prologue): Pass architecture to amd64_analyze_prologue.
(amd64_frame_cache): Likewise.
* arm-tdep.c (SWAP_SHORT, SWAP_INT): Remove.
(thumb_analyze_prologue, arm_skip_prologue, arm_scan_prologue,
thumb_get_next_pc, arm_get_next_pc): Do not use SWAP_ macros.
* arm-wince-tdep.c: Include "frame.h".
* avr-tdep.c (EXTRACT_INSN): Remove.
(avr_scan_prologue): Add GDBARCH argument, inline EXTRACT_INSN.
(avr_skip_prologue): Pass architecture to avr_scan_prologue.
(avr_frame_unwind_cache): Likewise.
* cris-tdep.c (struct instruction_environment): Add BYTE_ORDER member.
(find_step_target): Initialize it.
(get_data_from_address): Add BYTE_ORDER parameter.
(bdap_prefix): Pass byte order to get_data_from_address.
(handle_prefix_assign_mode_for_aritm_op): Likewise.
(three_operand_add_sub_cmp_and_or_op): Likewise.
(handle_inc_and_index_mode_for_aritm_op): Likewise.
* frv-linux-tdep.c (frv_linux_pc_in_sigtramp): Add GDBARCH parameter.
(frv_linux_sigcontext_reg_addr): Pass architecture to
frv_linux_pc_in_sigtramp.
(frv_linux_sigtramp_frame_sniffer): Likewise.
* h8300-tdep.c (h8300_is_argument_spill): Add GDBARCH parameter.
(h8300_analyze_prologue): Add GDBARCH parameter. Pass to
h8300_is_argument_spill.
(h8300_frame_cache, h8300_skip_prologue): Pass architecture
to h8300_analyze_prologue.
* hppa-tdep.h (struct gdbarch_tdep): Add GDBARCH parameter to
in_solib_call_trampoline callback.
(hppa_in_solib_call_trampoline): Add GDBARCH parameter.
* hppa-tdep.c (hppa64_convert_code_addr_to_fptr): Add GDBARCH
parameter.
(hppa64_push_dummy_call): Pass architecture to
hppa64_convert_code_addr_to_fptr.
(hppa_match_insns): Add GDBARCH parameter.
(hppa_match_insns_relaxed): Add GDBARCH parameter. Pass to
hppa_match_insns.
(hppa_skip_trampoline_code): Pass architecture to hppa_match_insns.
(hppa_in_solib_call_trampoline): Add GDBARCH parameter. Pass to
hppa_match_insns_relaxed.
(hppa_stub_unwind_sniffer): Pass architecture to
tdep->in_solib_call_trampoline callback.
* hppa-hpux-tdep.c (hppa_hpux_search_pattern): Add GDBARCH parameter.
(hppa32_hpux_search_dummy_call_sequence): Pass architecture to
hppa_hpux_search_pattern.
* hppa-linux-tdep.c (insns_match_pattern): Add GDBARCH parameter.
(hppa_linux_sigtramp_find_sigcontext): Add GDBARCH parameter.
Pass to insns_match_pattern.
(hppa_linux_sigtramp_frame_unwind_cache): Pass architecture to
hppa_linux_sigtramp_find_sigcontext.
(hppa_linux_sigtramp_frame_sniffer): Likewise.
(hppa32_hpux_in_solib_call_trampoline): Add GDBARCH parameter.
(hppa64_hpux_in_solib_call_trampoline): Likewise.
* i386-tdep.c (i386_follow_jump): Add GDBARCH parameter.
(i386_analyze_frame_setup): Add GDBARCH parameter.
(i386_analyze_prologue): Add GDBARCH parameter. Pass to
i386_follow_jump and i386_analyze_frame_setup.
(i386_skip_prologue): Pass architecture to i386_analyze_prologue
and i386_follow_jump.
(i386_frame_cache): Pass architecture to i386_analyze_prologue.
(i386_pe_skip_trampoline_code): Add FRAME parameter.
* i386-tdep.h (i386_pe_skip_trampoline_code): Add FRAME parameter.
* i386-cygwin-tdep.c (i386_cygwin_skip_trampoline_code): Pass
frame to i386_pe_skip_trampoline_code.
* ia64-tdep.h (struct gdbarch_tdep): Add GDBARCH parameter
to sigcontext_register_address callback.
* ia64-tdep.c (ia64_find_global_pointer): Add GDBARCH parameter.
(ia64_find_unwind_table): Pass architecture to
ia64_find_global_pointer.
(find_extant_func_descr): Add GDBARCH parameter.
(find_func_descr): Pass architecture to find_extant_func_descr
and ia64_find_global_pointer.
(ia64_sigtramp_frame_init_saved_regs): Pass architecture to
tdep->sigcontext_register_address callback.
* ia64-linux-tdep.c (ia64_linux_sigcontext_register_address): Add
GDBARCH parameter.
* iq2000-tdep.c (iq2000_scan_prologue): Add GDBARCH parameter.
(iq2000_frame_cache): Pass architecture to iq2000_scan_prologue.
* lm32-tdep.c (lm32_analyze_prologue): Add GDBARCH parameter.
(lm32_skip_prologue, lm32_frame_cache): Pass architecture to
lm32_analyze_prologue.
* m32r-tdep.c (decode_prologue): Add GDBARCH parameter.
(m32r_skip_prologue): Pass architecture to decode_prologue.
* m68hc11-tdep.c (m68hc11_analyze_instruction): Add GDBARCH parameter.
(m68hc11_scan_prologue): Pass architecture to
m68hc11_analyze_instruction.
* m68k-tdep.c (m68k_analyze_frame_setup): Add GDBARCH parameter.
(m68k_analyze_prologue): Pass architecture to
m68k_analyze_frame_setup.
* m88k-tdep.c (m88k_fetch_instruction): Add BYTE_ORDER parameter.
(m88k_analyze_prologue): Add GDBARCH parameter. Pass byte order
to m88k_fetch_instruction.
(m88k_skip_prologue): Pass architecture to m88k_analyze_prologue.
(m88k_frame_cache): Likewise.
* mep-tdep.c (mep_get_insn): Add GDBARCH parameter.
(mep_analyze_prologue): Pass architecture to mep_get_insn.
* mips-tdep.c (mips_fetch_instruction): Add GDBARCH parameter.
(mips32_next_pc): Pass architecture to mips_fetch_instruction.
(deal_with_atomic_sequence): Likewise.
(unpack_mips16): Add GDBARCH parameter, pass to mips_fetch_instruction.
(mips16_scan_prologue): Likewise.
(mips32_scan_prologue): Likewise.
(mips16_in_function_epilogue_p): Likewise.
(mips32_in_function_epilogue_p): Likewise.
(mips_about_to_return): Likewise.
(mips_insn16_frame_cache): Pass architecture to mips16_scan_prologue.
(mips_insn32_frame_cache): Pass architecture to mips32_scan_prologue.
(mips_skip_prologue): Pass architecture to mips16_scan_prologue
and mips32_scan_prologue.
(mips_in_function_epilogue_p): Pass architecture to
mips16_in_function_epilogue_p and
mips32_in_function_epilogue_p.
(heuristic_proc_start): Pass architecture to mips_fetch_instruction
and mips_about_to_return.
(mips_skip_mips16_trampoline_code): Pass architecture to
mips_fetch_instruction.
(fetch_mips_16): Add GDBARCH parameter.
(mips16_next_pc): Pass architecture to fetch_mips_16.
(extended_mips16_next_pc): Pass architecture to unpack_mips16 and
fetch_mips_16.
* objc-lang.c (read_objc_method, read_objc_methlist_nmethods,
read_objc_methlist_method, read_objc_object, read_objc_super,
read_objc_class): Add GDBARCH parameter.
(find_implementation_from_class): Add GDBARCH parameter, pass
to read_objc_class, read_objc_methlist_nmethods, and
read_objc_methlist_method.
(find_implementation): Add GDBARCH parameter, pass to
read_objc_object and find_implementation_from_class.
(resolve_msgsend, resolve_msgsend_stret): Pass architecture
to find_implementation.
(resolve_msgsend_super, resolve_msgsend_super_stret): Pass
architecture to read_objc_super and find_implementation_from_class.
* ppc64-linux-tdep.c (ppc64_desc_entry_point): Add GDBARCH parameter.
(ppc64_standard_linkage1_target, ppc64_standard_linkage2_target,
ppc64_standard_linkage3_target): Pass architecture to
ppc64_desc_entry_point.
* rs6000-tdep.c (bl_to_blrl_insn_p): Add BYTE_ORDER parameter.
(skip_prologue): Pass byte order to bl_to_blrl_insn_p.
(rs6000_fetch_instruction): Add GDBARCH parameter.
(rs6000_skip_stack_check): Add GDBARCH parameter, pass to
rs6000_fetch_instruction.
(skip_prologue): Pass architecture to rs6000_fetch_instruction.
* remote-mips.c (mips_store_word): Return old_contents as host
integer value instead of target bytes.
* s390-tdep.c (struct s390_prologue_data): Add BYTE_ORDER member.
(s390_analyze_prologue): Initialize it.
(extend_simple_arg): Add GDBARCH parameter.
(s390_push_dummy_call): Pass architecture to extend_simple_arg.
* scm-lang.c (scm_get_field): Add BYTE_ORDER parameter.
* scm-lang.h (scm_get_field): Add BYTE_ORDER parameter.
(SCM_CAR, SCM_CDR): Pass SCM_BYTE_ORDER to scm_get_field.
* scm-valprint.c (scm_scmval_print): Likewise.
(scm_scmlist_print, scm_ipruk, scm_scmval_print): Define
SCM_BYTE_ORDER.
* sh64-tdep.c (look_for_args_moves): Add GDBARCH parameter.
(sh64_skip_prologue_hard_way): Add GDBARCH parameter, pass to
look_for_args_moves.
(sh64_skip_prologue): Pass architecture to
sh64_skip_prologue_hard_way.
* sh-tdep.c (sh_analyze_prologue): Add GDBARCH parameter.
(sh_skip_prologue): Pass architecture to sh_analyze_prologue.
(sh_frame_cache): Likewise.
* solib-irix.c (extract_mips_address): Add GDBARCH parameter.
(fetch_lm_info, irix_current_sos, irix_open_symbol_file_object):
Pass architecture to extract_mips_address.
* sparc-tdep.h (sparc_fetch_wcookie): Add GDBARCH parameter.
* sparc-tdep.c (sparc_fetch_wcookie): Add GDBARCH parameter.
(sparc_supply_rwindow, sparc_collect_rwindow): Pass architecture
to sparc_fetch_wcookie.
(sparc32_frame_prev_register): Likewise.
* sparc64-tdep.c (sparc64_frame_prev_register): Likewise.
* sparc32nbsd-tdep.c (sparc32nbsd_sigcontext_saved_regs): Likewise.
* sparc64nbsd-tdep.c (sparc64nbsd_sigcontext_saved_regs): Likewise.
* spu-tdep.c (spu_analyze_prologue): Add GDBARCH parameter.
(spu_skip_prologue): Pass architecture to spu_analyze_prologue.
(spu_virtual_frame_pointer): Likewise.
(spu_frame_unwind_cache): Likewise.
(info_spu_mailbox_list): Add BYTE_ORER parameter.
(info_spu_mailbox_command): Pass byte order to info_spu_mailbox_list.
(info_spu_dma_cmdlist): Add BYTE_ORER parameter.
(info_spu_dma_command, info_spu_proxydma_command): Pass byte order
to info_spu_dma_cmdlist.
* symfile.c (read_target_long_array): Add GDBARCH parameter.
(simple_read_overlay_table, simple_read_overlay_region_table,
simple_overlay_update_1): Pass architecture to read_target_long_array.
* v850-tdep.c (v850_analyze_prologue): Add GDBARCH parameter.
(v850_frame_cache): Pass architecture to v850_analyze_prologue.
* xstormy16-tdep.c (xstormy16_analyze_prologue): Add GDBARCH
parameter.
(xstormy16_skip_prologue, xstormy16_frame_cache): Pass architecture
to xstormy16_analyze_prologue.
(xstormy16_resolve_jmp_table_entry): Add GDBARCH parameter.
(xstormy16_find_jmp_table_entry): Likewise.
(xstormy16_skip_trampoline_code): Pass architecture to
xstormy16_resolve_jmp_table_entry.
(xstormy16_pointer_to_address): Likewise.
(xstormy16_address_to_pointer): Pass architecture to
xstormy16_find_jmp_table_entry.
* xtensa-tdep.c (call0_track_op): Add GDBARCH parameter.
(call0_analyze_prologue): Add GDBARCH parameter, pass to
call0_track_op.
(call0_frame_cache): Pass architecture to call0_analyze_prologue.
(xtensa_skip_prologue): Likewise.
2009-07-02 19:25:59 +02:00
|
|
|
|
ULONGEST val = extract_unsigned_integer (buf, size, byte_order);
|
2010-05-17 03:15:20 +02:00
|
|
|
|
|
2008-09-05 14:57:16 +02:00
|
|
|
|
fprintf_unfiltered (gdb_stdlog, " %s %s",
|
|
|
|
|
core_addr_to_string_nz (val), plongest (val));
|
2002-05-04 16:19:21 +02:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog, "\n");
|
|
|
|
|
}
|
|
|
|
|
|
* corelow.c (get_core_registers): Adjust.
(core_file_thread_alive): Rename to...
(core_thread_alive): ... this.
(core_pid_to_str): Try gdbarch_core_pid_to_str first.
(init_core_ops): Adjust.
(coreops_suppress_target): Delete.
(_initialize_corelow): Unconditionally add core_ops.
* procfs.c: Include "inf-child.h".
(procfs_ops): Delete.
(init_procfs_ops): Delete. Reimplement as...
(procfs_target): ... this, inheriting from inf-child.
(procfs_attach, procfs_detach, procfs_fetch_registers): Adjust.
(procfs_prepare_to_store): Delete.
(procfs_store_registers, procfs_resume): Adjust.
(procfs_open): Delete.
(procfs_suppress_run): Delete.
(procfs_can_run): Delete.
(procfs_mourn_inferior): Adjust.
(procfs_init_inferior): Add target_ops parameter. Adjust.
(procfs_create_inferior): Don't pass procfs_init_inferior to
fork_inferior. Instead call it after fork_inferior returns.
(procfs_find_new_threads): Adjust.
(_initialize_procfs): Adjust to use procfs_target instead of
init_procfs_ops.
* sol-thread.c (orig_core_ops, sol_core_ops): Delete.
(lwp_to_thread): Use target_thread_alive.
(sol_thread_open): Delete.
(sol_thread_attach): Delete.
(sol_thread_detach, sol_thread_resume, sol_thread_wait)
(sol_thread_fetch_registers, sol_thread_store_registers): Adjust
to use find_target_beneath.
(sol_thread_prepare_to_store, sol_thread_xfer_memory): Delete.
(sol_thread_xfer_partial): Adjust to use find_target_beneath.
(sol_thread_files_info, sol_thread_kill_inferior): Delete.
(check_for_thread_db): New.
(sol_thread_notice_signals, sol_thread_create_inferior): Delete.
(sol_thread_new_objfile): Call check_for_thread_db.
(sol_thread_mourn_inferior): Adjust to use find_target_beneath.
(sol_thread_can_run): Delete.
(sol_thread_alive): Adjust to use find_target_beneath.
(sol_thread_stop): Delete.
(rw_common): Use target_write_memory or target_read_memory.
(ps_lgetregs, ps_lgetfpregs): Use target_fetch_registers.
(ps_lsetregs, ps_lsetfpregs): Use target_store_registers.
(solaris_pid_to_str): Remove check for libthread_db initialization
failing.
(sol_find_new_threads): Remove check for libthread_db
initialization failing, or for an invalid inferior_ptid. Adjust
to use find_target_beneath.
(sol_core_open, sol_core_close, sol_core_detach,
sol_core_files_info, sol_find_memory_regions,
sol_make_note_section, ignore): Delete.
(init_sol_thread_ops): Make it a thread_stratum target. Remove
unneeded callback settings.
(init_sol_core_ops): Delete.
(_initialize_sol_thread): No longer call init_sol_core_ops, set
procfs_suppress_run, or hack with core_ops.
* target.h (struct target_ops): Add a target_ops * parameter to
to_resume, to_fetch_registers, to_store_registers, to_thread_alive
and to_find_new_threads.
(target_fetch_registers, target_store_registers)
(target_thread_alive, target_find_new_threads): Redeclare as
function.
* target.c (update_current_target): Do not inherit or de_fault
to_resume, to_fetch_registers, to_store_registers,
to_thread_alive, to_find_new_threads.
(target_resume): Adjust.
(target_thread_alive, target_find_new_threads): New.
(debug_to_resume, debug_to_fetch_registers): Delete.
(target_fetch_registers): New.
(debug_to_store_registers): Delete.
(target_store_registers): New.
(debug_to_thread_alive, debug_to_find_new_threads): Delete.
(setup_target_debug): Adjust.
* gdbcore.h (core_ops): Delete declaration.
* inf-ptrace.c, linux-nat.c, remote.c, amd64-linux-nat.c,
inf-child.c, linux-thread-db.c, bsd-uthread.c, inf-ttrace.c,
i386-sol2-tdep.c, darwin-nat.c, gnu-nat.c, go32-nat.c,
hpux-thread.c, i386-linux-nat.c, i386fbsd-nat.c, monitor.c,
nto-procfs.c, remote-m32r-sdi.c, remote-mips.c, windows-nat.c,
alphabsd-nat.c, amd64bsd-nat.c, arm-linux-nat.c, armnbsd-nat.c,
bsd-kvm.c, hppa-hpux-nat.c, hppa-linux-nat.c, hppabsd-nat.c,
hppanbsd-nat.c, i386-darwin-nat.c, i386bsd-nat.c,
ia64-linux-nat.c, m32r-linux-nat.c, m68kbsd-nat.c,
m68klinux-nat.c, m88kbsd-nat.c, mips-linux-nat.c,
mips64obsd-nat.c, mipsnbsd-nat.c, ppc-linux-nat.c, ppcnbsd-nat.c,
ppcobsd-nat.c, remote-sim.c, rs6000-nat.c, s390-nat.c,
shnbsd-nat.c, sparc-nat.c, sparc-nat.h, spu-linux-nat.c,
vaxbsd-nat.c, xtensa-linux-nat.c: Adjust to target_ops changes.
* gdbarch.sh (core_pid_to_str): New gdbarch callback.
* gdbarch.h, gdbarch.c: Regenerate.
* sol2-tdep.c: Include "inferior.h".
(sol2_core_pid_to_str): New.
* sol2-tdep.h (sol2_core_pid_to_str): Declare.
* amd64-sol2-tdep.c (amd64_sol2_init_abi): Set it.
* sparc-sol2-tdep.c (sparc32_sol2_init_abi): Set it.
* sparc64-sol2-tdep.c (sparc64_sol2_init_abi): Set it.
* i386-sol2-tdep.c (i386_sol2_init_abi): Set it.
2009-02-23 01:03:50 +01:00
|
|
|
|
void
|
|
|
|
|
target_fetch_registers (struct regcache *regcache, int regno)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2013-12-18 22:30:22 +01:00
|
|
|
|
current_target.to_fetch_registers (¤t_target, regcache, regno);
|
|
|
|
|
if (targetdebug)
|
|
|
|
|
debug_print_register ("target_fetch_registers", regcache, regno);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
* corelow.c (get_core_registers): Adjust.
(core_file_thread_alive): Rename to...
(core_thread_alive): ... this.
(core_pid_to_str): Try gdbarch_core_pid_to_str first.
(init_core_ops): Adjust.
(coreops_suppress_target): Delete.
(_initialize_corelow): Unconditionally add core_ops.
* procfs.c: Include "inf-child.h".
(procfs_ops): Delete.
(init_procfs_ops): Delete. Reimplement as...
(procfs_target): ... this, inheriting from inf-child.
(procfs_attach, procfs_detach, procfs_fetch_registers): Adjust.
(procfs_prepare_to_store): Delete.
(procfs_store_registers, procfs_resume): Adjust.
(procfs_open): Delete.
(procfs_suppress_run): Delete.
(procfs_can_run): Delete.
(procfs_mourn_inferior): Adjust.
(procfs_init_inferior): Add target_ops parameter. Adjust.
(procfs_create_inferior): Don't pass procfs_init_inferior to
fork_inferior. Instead call it after fork_inferior returns.
(procfs_find_new_threads): Adjust.
(_initialize_procfs): Adjust to use procfs_target instead of
init_procfs_ops.
* sol-thread.c (orig_core_ops, sol_core_ops): Delete.
(lwp_to_thread): Use target_thread_alive.
(sol_thread_open): Delete.
(sol_thread_attach): Delete.
(sol_thread_detach, sol_thread_resume, sol_thread_wait)
(sol_thread_fetch_registers, sol_thread_store_registers): Adjust
to use find_target_beneath.
(sol_thread_prepare_to_store, sol_thread_xfer_memory): Delete.
(sol_thread_xfer_partial): Adjust to use find_target_beneath.
(sol_thread_files_info, sol_thread_kill_inferior): Delete.
(check_for_thread_db): New.
(sol_thread_notice_signals, sol_thread_create_inferior): Delete.
(sol_thread_new_objfile): Call check_for_thread_db.
(sol_thread_mourn_inferior): Adjust to use find_target_beneath.
(sol_thread_can_run): Delete.
(sol_thread_alive): Adjust to use find_target_beneath.
(sol_thread_stop): Delete.
(rw_common): Use target_write_memory or target_read_memory.
(ps_lgetregs, ps_lgetfpregs): Use target_fetch_registers.
(ps_lsetregs, ps_lsetfpregs): Use target_store_registers.
(solaris_pid_to_str): Remove check for libthread_db initialization
failing.
(sol_find_new_threads): Remove check for libthread_db
initialization failing, or for an invalid inferior_ptid. Adjust
to use find_target_beneath.
(sol_core_open, sol_core_close, sol_core_detach,
sol_core_files_info, sol_find_memory_regions,
sol_make_note_section, ignore): Delete.
(init_sol_thread_ops): Make it a thread_stratum target. Remove
unneeded callback settings.
(init_sol_core_ops): Delete.
(_initialize_sol_thread): No longer call init_sol_core_ops, set
procfs_suppress_run, or hack with core_ops.
* target.h (struct target_ops): Add a target_ops * parameter to
to_resume, to_fetch_registers, to_store_registers, to_thread_alive
and to_find_new_threads.
(target_fetch_registers, target_store_registers)
(target_thread_alive, target_find_new_threads): Redeclare as
function.
* target.c (update_current_target): Do not inherit or de_fault
to_resume, to_fetch_registers, to_store_registers,
to_thread_alive, to_find_new_threads.
(target_resume): Adjust.
(target_thread_alive, target_find_new_threads): New.
(debug_to_resume, debug_to_fetch_registers): Delete.
(target_fetch_registers): New.
(debug_to_store_registers): Delete.
(target_store_registers): New.
(debug_to_thread_alive, debug_to_find_new_threads): Delete.
(setup_target_debug): Adjust.
* gdbcore.h (core_ops): Delete declaration.
* inf-ptrace.c, linux-nat.c, remote.c, amd64-linux-nat.c,
inf-child.c, linux-thread-db.c, bsd-uthread.c, inf-ttrace.c,
i386-sol2-tdep.c, darwin-nat.c, gnu-nat.c, go32-nat.c,
hpux-thread.c, i386-linux-nat.c, i386fbsd-nat.c, monitor.c,
nto-procfs.c, remote-m32r-sdi.c, remote-mips.c, windows-nat.c,
alphabsd-nat.c, amd64bsd-nat.c, arm-linux-nat.c, armnbsd-nat.c,
bsd-kvm.c, hppa-hpux-nat.c, hppa-linux-nat.c, hppabsd-nat.c,
hppanbsd-nat.c, i386-darwin-nat.c, i386bsd-nat.c,
ia64-linux-nat.c, m32r-linux-nat.c, m68kbsd-nat.c,
m68klinux-nat.c, m88kbsd-nat.c, mips-linux-nat.c,
mips64obsd-nat.c, mipsnbsd-nat.c, ppc-linux-nat.c, ppcnbsd-nat.c,
ppcobsd-nat.c, remote-sim.c, rs6000-nat.c, s390-nat.c,
shnbsd-nat.c, sparc-nat.c, sparc-nat.h, spu-linux-nat.c,
vaxbsd-nat.c, xtensa-linux-nat.c: Adjust to target_ops changes.
* gdbarch.sh (core_pid_to_str): New gdbarch callback.
* gdbarch.h, gdbarch.c: Regenerate.
* sol2-tdep.c: Include "inferior.h".
(sol2_core_pid_to_str): New.
* sol2-tdep.h (sol2_core_pid_to_str): Declare.
* amd64-sol2-tdep.c (amd64_sol2_init_abi): Set it.
* sparc-sol2-tdep.c (sparc32_sol2_init_abi): Set it.
* sparc64-sol2-tdep.c (sparc64_sol2_init_abi): Set it.
* i386-sol2-tdep.c (i386_sol2_init_abi): Set it.
2009-02-23 01:03:50 +01:00
|
|
|
|
void
|
|
|
|
|
target_store_registers (struct regcache *regcache, int regno)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
* corelow.c (get_core_registers): Adjust.
(core_file_thread_alive): Rename to...
(core_thread_alive): ... this.
(core_pid_to_str): Try gdbarch_core_pid_to_str first.
(init_core_ops): Adjust.
(coreops_suppress_target): Delete.
(_initialize_corelow): Unconditionally add core_ops.
* procfs.c: Include "inf-child.h".
(procfs_ops): Delete.
(init_procfs_ops): Delete. Reimplement as...
(procfs_target): ... this, inheriting from inf-child.
(procfs_attach, procfs_detach, procfs_fetch_registers): Adjust.
(procfs_prepare_to_store): Delete.
(procfs_store_registers, procfs_resume): Adjust.
(procfs_open): Delete.
(procfs_suppress_run): Delete.
(procfs_can_run): Delete.
(procfs_mourn_inferior): Adjust.
(procfs_init_inferior): Add target_ops parameter. Adjust.
(procfs_create_inferior): Don't pass procfs_init_inferior to
fork_inferior. Instead call it after fork_inferior returns.
(procfs_find_new_threads): Adjust.
(_initialize_procfs): Adjust to use procfs_target instead of
init_procfs_ops.
* sol-thread.c (orig_core_ops, sol_core_ops): Delete.
(lwp_to_thread): Use target_thread_alive.
(sol_thread_open): Delete.
(sol_thread_attach): Delete.
(sol_thread_detach, sol_thread_resume, sol_thread_wait)
(sol_thread_fetch_registers, sol_thread_store_registers): Adjust
to use find_target_beneath.
(sol_thread_prepare_to_store, sol_thread_xfer_memory): Delete.
(sol_thread_xfer_partial): Adjust to use find_target_beneath.
(sol_thread_files_info, sol_thread_kill_inferior): Delete.
(check_for_thread_db): New.
(sol_thread_notice_signals, sol_thread_create_inferior): Delete.
(sol_thread_new_objfile): Call check_for_thread_db.
(sol_thread_mourn_inferior): Adjust to use find_target_beneath.
(sol_thread_can_run): Delete.
(sol_thread_alive): Adjust to use find_target_beneath.
(sol_thread_stop): Delete.
(rw_common): Use target_write_memory or target_read_memory.
(ps_lgetregs, ps_lgetfpregs): Use target_fetch_registers.
(ps_lsetregs, ps_lsetfpregs): Use target_store_registers.
(solaris_pid_to_str): Remove check for libthread_db initialization
failing.
(sol_find_new_threads): Remove check for libthread_db
initialization failing, or for an invalid inferior_ptid. Adjust
to use find_target_beneath.
(sol_core_open, sol_core_close, sol_core_detach,
sol_core_files_info, sol_find_memory_regions,
sol_make_note_section, ignore): Delete.
(init_sol_thread_ops): Make it a thread_stratum target. Remove
unneeded callback settings.
(init_sol_core_ops): Delete.
(_initialize_sol_thread): No longer call init_sol_core_ops, set
procfs_suppress_run, or hack with core_ops.
* target.h (struct target_ops): Add a target_ops * parameter to
to_resume, to_fetch_registers, to_store_registers, to_thread_alive
and to_find_new_threads.
(target_fetch_registers, target_store_registers)
(target_thread_alive, target_find_new_threads): Redeclare as
function.
* target.c (update_current_target): Do not inherit or de_fault
to_resume, to_fetch_registers, to_store_registers,
to_thread_alive, to_find_new_threads.
(target_resume): Adjust.
(target_thread_alive, target_find_new_threads): New.
(debug_to_resume, debug_to_fetch_registers): Delete.
(target_fetch_registers): New.
(debug_to_store_registers): Delete.
(target_store_registers): New.
(debug_to_thread_alive, debug_to_find_new_threads): Delete.
(setup_target_debug): Adjust.
* gdbcore.h (core_ops): Delete declaration.
* inf-ptrace.c, linux-nat.c, remote.c, amd64-linux-nat.c,
inf-child.c, linux-thread-db.c, bsd-uthread.c, inf-ttrace.c,
i386-sol2-tdep.c, darwin-nat.c, gnu-nat.c, go32-nat.c,
hpux-thread.c, i386-linux-nat.c, i386fbsd-nat.c, monitor.c,
nto-procfs.c, remote-m32r-sdi.c, remote-mips.c, windows-nat.c,
alphabsd-nat.c, amd64bsd-nat.c, arm-linux-nat.c, armnbsd-nat.c,
bsd-kvm.c, hppa-hpux-nat.c, hppa-linux-nat.c, hppabsd-nat.c,
hppanbsd-nat.c, i386-darwin-nat.c, i386bsd-nat.c,
ia64-linux-nat.c, m32r-linux-nat.c, m68kbsd-nat.c,
m68klinux-nat.c, m88kbsd-nat.c, mips-linux-nat.c,
mips64obsd-nat.c, mipsnbsd-nat.c, ppc-linux-nat.c, ppcnbsd-nat.c,
ppcobsd-nat.c, remote-sim.c, rs6000-nat.c, s390-nat.c,
shnbsd-nat.c, sparc-nat.c, sparc-nat.h, spu-linux-nat.c,
vaxbsd-nat.c, xtensa-linux-nat.c: Adjust to target_ops changes.
* gdbarch.sh (core_pid_to_str): New gdbarch callback.
* gdbarch.h, gdbarch.c: Regenerate.
* sol2-tdep.c: Include "inferior.h".
(sol2_core_pid_to_str): New.
* sol2-tdep.h (sol2_core_pid_to_str): Declare.
* amd64-sol2-tdep.c (amd64_sol2_init_abi): Set it.
* sparc-sol2-tdep.c (sparc32_sol2_init_abi): Set it.
* sparc64-sol2-tdep.c (sparc64_sol2_init_abi): Set it.
* i386-sol2-tdep.c (i386_sol2_init_abi): Set it.
2009-02-23 01:03:50 +01:00
|
|
|
|
struct target_ops *t;
|
2010-05-17 03:15:20 +02:00
|
|
|
|
|
2010-06-12 02:05:22 +02:00
|
|
|
|
if (!may_write_registers)
|
|
|
|
|
error (_("Writing to registers is not allowed (regno %d)"), regno);
|
|
|
|
|
|
add target method delegation
This patch replaces some code in the record targets with target method
delegation.
record-full.c stores pointers to many target methods when the record
target is pushed. Then it later delegates some calls via these. This
is wrong because it violates the target stack contract. In particular
it is ok to unpush a target at any stratum, but record-full does not
keep track of this, so it could potentially call into an unpushed
target.
This patch fixes the problem by using the newly-introduced generic
approach to target delegation for the methods in question.
2014-02-19 Tom Tromey <tromey@redhat.com>
* record-full.c (record_full_beneath_to_resume_ops)
(record_full_beneath_to_resume, record_full_beneath_to_wait_ops)
(record_full_beneath_to_wait)
(record_full_beneath_to_store_registers_ops)
(record_full_beneath_to_store_registers)
(record_full_beneath_to_xfer_partial_ops)
(record_full_beneath_to_xfer_partial)
(record_full_beneath_to_insert_breakpoint_ops)
(record_full_beneath_to_insert_breakpoint)
(record_full_beneath_to_remove_breakpoint_ops)
(record_full_beneath_to_remove_breakpoint)
(record_full_beneath_to_stopped_by_watchpoint)
(record_full_beneath_to_stopped_data_address)
(record_full_beneath_to_async, tmp_to_resume_ops, tmp_to_resume)
(tmp_to_wait_ops, tmp_to_wait, tmp_to_store_registers_ops)
(tmp_to_store_registers, tmp_to_xfer_partial_ops)
(tmp_to_xfer_partial, tmp_to_instmp_to_insert_breakpoint_ops)
(tmp_to_insert_breakpoint, tmp_to_remove_breakpoint_ops)
(tmp_to_remove_breakpoint, tmp_to_stopped_by_watchpoint)
(tmp_to_stopped_data_address, tmp_to_async): Remove.
(record_full_open_1, record_full_open): Update. Use RECORD_IS_USED.
(record_full_resume, record_full_wait_1)
(record_full_stopped_by_watchpoint, record_full_stopped_data_address)
(record_full_store_registers, record_full_xfer_partial)
(record_full_insert_breakpoint, record_full_remove_breakpoint)
(record_full_async, record_full_core_xfer_partial): Use target
delegation.
* target-delegates.c: Rebuild.
* target.c (current_xfer_partial): Remove.
(update_current_target): Do not INHERIT or de_fault
to_insert_breakpoint, to_remove_breakpoint,
to_stopped_data_address, to_stopped_by_watchpoint, to_can_async_p,
to_is_async_p, to_async. Do not set to_xfer_partial field.
(default_xfer_partial): Simplify.
(current_xfer_partial): Remove.
(target_wait, target_resume): Simplify.
(find_default_can_async_p, find_default_is_async_p): Update.
(init_dummy_target): Don't set to_can_async_p, to_is_async_p,
to_xfer_partial, to_stopped_by_watchpoint,
to_stopped_data_address.
(target_store_registers): Simplify.
(forward_target_remove_breakpoint)
(forward_target_insert_breakpoint): Remove.
(target_remove_breakpoint, target_insert_breakpoint)
(debug_to_insert_breakpoint, debug_to_remove_breakpoint): Update.
* target.h (struct target_ops) <to_resume, to_wait,
to_store_registers, to_insert_breakpoint, to_remove_breakpoint,
to_stopped_by_watchpoint, to_stopped_data_address, to_can_async_p,
to_is_async_p, to_async, to_xfer_partial>: Add TARGET_DEFAULT
markup.
(forward_target_remove_breakpoint)
(forward_target_insert_breakpoint): Remove.
* record-btrace.c (record_btrace_remove_breakpoint): Delegate
directly.
(record_btrace_insert_breakpoint): Delegate directly.
2013-07-12 21:00:34 +02:00
|
|
|
|
current_target.to_store_registers (¤t_target, regcache, regno);
|
|
|
|
|
if (targetdebug)
|
* corelow.c (get_core_registers): Adjust.
(core_file_thread_alive): Rename to...
(core_thread_alive): ... this.
(core_pid_to_str): Try gdbarch_core_pid_to_str first.
(init_core_ops): Adjust.
(coreops_suppress_target): Delete.
(_initialize_corelow): Unconditionally add core_ops.
* procfs.c: Include "inf-child.h".
(procfs_ops): Delete.
(init_procfs_ops): Delete. Reimplement as...
(procfs_target): ... this, inheriting from inf-child.
(procfs_attach, procfs_detach, procfs_fetch_registers): Adjust.
(procfs_prepare_to_store): Delete.
(procfs_store_registers, procfs_resume): Adjust.
(procfs_open): Delete.
(procfs_suppress_run): Delete.
(procfs_can_run): Delete.
(procfs_mourn_inferior): Adjust.
(procfs_init_inferior): Add target_ops parameter. Adjust.
(procfs_create_inferior): Don't pass procfs_init_inferior to
fork_inferior. Instead call it after fork_inferior returns.
(procfs_find_new_threads): Adjust.
(_initialize_procfs): Adjust to use procfs_target instead of
init_procfs_ops.
* sol-thread.c (orig_core_ops, sol_core_ops): Delete.
(lwp_to_thread): Use target_thread_alive.
(sol_thread_open): Delete.
(sol_thread_attach): Delete.
(sol_thread_detach, sol_thread_resume, sol_thread_wait)
(sol_thread_fetch_registers, sol_thread_store_registers): Adjust
to use find_target_beneath.
(sol_thread_prepare_to_store, sol_thread_xfer_memory): Delete.
(sol_thread_xfer_partial): Adjust to use find_target_beneath.
(sol_thread_files_info, sol_thread_kill_inferior): Delete.
(check_for_thread_db): New.
(sol_thread_notice_signals, sol_thread_create_inferior): Delete.
(sol_thread_new_objfile): Call check_for_thread_db.
(sol_thread_mourn_inferior): Adjust to use find_target_beneath.
(sol_thread_can_run): Delete.
(sol_thread_alive): Adjust to use find_target_beneath.
(sol_thread_stop): Delete.
(rw_common): Use target_write_memory or target_read_memory.
(ps_lgetregs, ps_lgetfpregs): Use target_fetch_registers.
(ps_lsetregs, ps_lsetfpregs): Use target_store_registers.
(solaris_pid_to_str): Remove check for libthread_db initialization
failing.
(sol_find_new_threads): Remove check for libthread_db
initialization failing, or for an invalid inferior_ptid. Adjust
to use find_target_beneath.
(sol_core_open, sol_core_close, sol_core_detach,
sol_core_files_info, sol_find_memory_regions,
sol_make_note_section, ignore): Delete.
(init_sol_thread_ops): Make it a thread_stratum target. Remove
unneeded callback settings.
(init_sol_core_ops): Delete.
(_initialize_sol_thread): No longer call init_sol_core_ops, set
procfs_suppress_run, or hack with core_ops.
* target.h (struct target_ops): Add a target_ops * parameter to
to_resume, to_fetch_registers, to_store_registers, to_thread_alive
and to_find_new_threads.
(target_fetch_registers, target_store_registers)
(target_thread_alive, target_find_new_threads): Redeclare as
function.
* target.c (update_current_target): Do not inherit or de_fault
to_resume, to_fetch_registers, to_store_registers,
to_thread_alive, to_find_new_threads.
(target_resume): Adjust.
(target_thread_alive, target_find_new_threads): New.
(debug_to_resume, debug_to_fetch_registers): Delete.
(target_fetch_registers): New.
(debug_to_store_registers): Delete.
(target_store_registers): New.
(debug_to_thread_alive, debug_to_find_new_threads): Delete.
(setup_target_debug): Adjust.
* gdbcore.h (core_ops): Delete declaration.
* inf-ptrace.c, linux-nat.c, remote.c, amd64-linux-nat.c,
inf-child.c, linux-thread-db.c, bsd-uthread.c, inf-ttrace.c,
i386-sol2-tdep.c, darwin-nat.c, gnu-nat.c, go32-nat.c,
hpux-thread.c, i386-linux-nat.c, i386fbsd-nat.c, monitor.c,
nto-procfs.c, remote-m32r-sdi.c, remote-mips.c, windows-nat.c,
alphabsd-nat.c, amd64bsd-nat.c, arm-linux-nat.c, armnbsd-nat.c,
bsd-kvm.c, hppa-hpux-nat.c, hppa-linux-nat.c, hppabsd-nat.c,
hppanbsd-nat.c, i386-darwin-nat.c, i386bsd-nat.c,
ia64-linux-nat.c, m32r-linux-nat.c, m68kbsd-nat.c,
m68klinux-nat.c, m88kbsd-nat.c, mips-linux-nat.c,
mips64obsd-nat.c, mipsnbsd-nat.c, ppc-linux-nat.c, ppcnbsd-nat.c,
ppcobsd-nat.c, remote-sim.c, rs6000-nat.c, s390-nat.c,
shnbsd-nat.c, sparc-nat.c, sparc-nat.h, spu-linux-nat.c,
vaxbsd-nat.c, xtensa-linux-nat.c: Adjust to target_ops changes.
* gdbarch.sh (core_pid_to_str): New gdbarch callback.
* gdbarch.h, gdbarch.c: Regenerate.
* sol2-tdep.c: Include "inferior.h".
(sol2_core_pid_to_str): New.
* sol2-tdep.h (sol2_core_pid_to_str): Declare.
* amd64-sol2-tdep.c (amd64_sol2_init_abi): Set it.
* sparc-sol2-tdep.c (sparc32_sol2_init_abi): Set it.
* sparc64-sol2-tdep.c (sparc64_sol2_init_abi): Set it.
* i386-sol2-tdep.c (i386_sol2_init_abi): Set it.
2009-02-23 01:03:50 +01:00
|
|
|
|
{
|
add target method delegation
This patch replaces some code in the record targets with target method
delegation.
record-full.c stores pointers to many target methods when the record
target is pushed. Then it later delegates some calls via these. This
is wrong because it violates the target stack contract. In particular
it is ok to unpush a target at any stratum, but record-full does not
keep track of this, so it could potentially call into an unpushed
target.
This patch fixes the problem by using the newly-introduced generic
approach to target delegation for the methods in question.
2014-02-19 Tom Tromey <tromey@redhat.com>
* record-full.c (record_full_beneath_to_resume_ops)
(record_full_beneath_to_resume, record_full_beneath_to_wait_ops)
(record_full_beneath_to_wait)
(record_full_beneath_to_store_registers_ops)
(record_full_beneath_to_store_registers)
(record_full_beneath_to_xfer_partial_ops)
(record_full_beneath_to_xfer_partial)
(record_full_beneath_to_insert_breakpoint_ops)
(record_full_beneath_to_insert_breakpoint)
(record_full_beneath_to_remove_breakpoint_ops)
(record_full_beneath_to_remove_breakpoint)
(record_full_beneath_to_stopped_by_watchpoint)
(record_full_beneath_to_stopped_data_address)
(record_full_beneath_to_async, tmp_to_resume_ops, tmp_to_resume)
(tmp_to_wait_ops, tmp_to_wait, tmp_to_store_registers_ops)
(tmp_to_store_registers, tmp_to_xfer_partial_ops)
(tmp_to_xfer_partial, tmp_to_instmp_to_insert_breakpoint_ops)
(tmp_to_insert_breakpoint, tmp_to_remove_breakpoint_ops)
(tmp_to_remove_breakpoint, tmp_to_stopped_by_watchpoint)
(tmp_to_stopped_data_address, tmp_to_async): Remove.
(record_full_open_1, record_full_open): Update. Use RECORD_IS_USED.
(record_full_resume, record_full_wait_1)
(record_full_stopped_by_watchpoint, record_full_stopped_data_address)
(record_full_store_registers, record_full_xfer_partial)
(record_full_insert_breakpoint, record_full_remove_breakpoint)
(record_full_async, record_full_core_xfer_partial): Use target
delegation.
* target-delegates.c: Rebuild.
* target.c (current_xfer_partial): Remove.
(update_current_target): Do not INHERIT or de_fault
to_insert_breakpoint, to_remove_breakpoint,
to_stopped_data_address, to_stopped_by_watchpoint, to_can_async_p,
to_is_async_p, to_async. Do not set to_xfer_partial field.
(default_xfer_partial): Simplify.
(current_xfer_partial): Remove.
(target_wait, target_resume): Simplify.
(find_default_can_async_p, find_default_is_async_p): Update.
(init_dummy_target): Don't set to_can_async_p, to_is_async_p,
to_xfer_partial, to_stopped_by_watchpoint,
to_stopped_data_address.
(target_store_registers): Simplify.
(forward_target_remove_breakpoint)
(forward_target_insert_breakpoint): Remove.
(target_remove_breakpoint, target_insert_breakpoint)
(debug_to_insert_breakpoint, debug_to_remove_breakpoint): Update.
* target.h (struct target_ops) <to_resume, to_wait,
to_store_registers, to_insert_breakpoint, to_remove_breakpoint,
to_stopped_by_watchpoint, to_stopped_data_address, to_can_async_p,
to_is_async_p, to_async, to_xfer_partial>: Add TARGET_DEFAULT
markup.
(forward_target_remove_breakpoint)
(forward_target_insert_breakpoint): Remove.
* record-btrace.c (record_btrace_remove_breakpoint): Delegate
directly.
(record_btrace_insert_breakpoint): Delegate directly.
2013-07-12 21:00:34 +02:00
|
|
|
|
debug_print_register ("target_store_registers", regcache, regno);
|
* corelow.c (get_core_registers): Adjust.
(core_file_thread_alive): Rename to...
(core_thread_alive): ... this.
(core_pid_to_str): Try gdbarch_core_pid_to_str first.
(init_core_ops): Adjust.
(coreops_suppress_target): Delete.
(_initialize_corelow): Unconditionally add core_ops.
* procfs.c: Include "inf-child.h".
(procfs_ops): Delete.
(init_procfs_ops): Delete. Reimplement as...
(procfs_target): ... this, inheriting from inf-child.
(procfs_attach, procfs_detach, procfs_fetch_registers): Adjust.
(procfs_prepare_to_store): Delete.
(procfs_store_registers, procfs_resume): Adjust.
(procfs_open): Delete.
(procfs_suppress_run): Delete.
(procfs_can_run): Delete.
(procfs_mourn_inferior): Adjust.
(procfs_init_inferior): Add target_ops parameter. Adjust.
(procfs_create_inferior): Don't pass procfs_init_inferior to
fork_inferior. Instead call it after fork_inferior returns.
(procfs_find_new_threads): Adjust.
(_initialize_procfs): Adjust to use procfs_target instead of
init_procfs_ops.
* sol-thread.c (orig_core_ops, sol_core_ops): Delete.
(lwp_to_thread): Use target_thread_alive.
(sol_thread_open): Delete.
(sol_thread_attach): Delete.
(sol_thread_detach, sol_thread_resume, sol_thread_wait)
(sol_thread_fetch_registers, sol_thread_store_registers): Adjust
to use find_target_beneath.
(sol_thread_prepare_to_store, sol_thread_xfer_memory): Delete.
(sol_thread_xfer_partial): Adjust to use find_target_beneath.
(sol_thread_files_info, sol_thread_kill_inferior): Delete.
(check_for_thread_db): New.
(sol_thread_notice_signals, sol_thread_create_inferior): Delete.
(sol_thread_new_objfile): Call check_for_thread_db.
(sol_thread_mourn_inferior): Adjust to use find_target_beneath.
(sol_thread_can_run): Delete.
(sol_thread_alive): Adjust to use find_target_beneath.
(sol_thread_stop): Delete.
(rw_common): Use target_write_memory or target_read_memory.
(ps_lgetregs, ps_lgetfpregs): Use target_fetch_registers.
(ps_lsetregs, ps_lsetfpregs): Use target_store_registers.
(solaris_pid_to_str): Remove check for libthread_db initialization
failing.
(sol_find_new_threads): Remove check for libthread_db
initialization failing, or for an invalid inferior_ptid. Adjust
to use find_target_beneath.
(sol_core_open, sol_core_close, sol_core_detach,
sol_core_files_info, sol_find_memory_regions,
sol_make_note_section, ignore): Delete.
(init_sol_thread_ops): Make it a thread_stratum target. Remove
unneeded callback settings.
(init_sol_core_ops): Delete.
(_initialize_sol_thread): No longer call init_sol_core_ops, set
procfs_suppress_run, or hack with core_ops.
* target.h (struct target_ops): Add a target_ops * parameter to
to_resume, to_fetch_registers, to_store_registers, to_thread_alive
and to_find_new_threads.
(target_fetch_registers, target_store_registers)
(target_thread_alive, target_find_new_threads): Redeclare as
function.
* target.c (update_current_target): Do not inherit or de_fault
to_resume, to_fetch_registers, to_store_registers,
to_thread_alive, to_find_new_threads.
(target_resume): Adjust.
(target_thread_alive, target_find_new_threads): New.
(debug_to_resume, debug_to_fetch_registers): Delete.
(target_fetch_registers): New.
(debug_to_store_registers): Delete.
(target_store_registers): New.
(debug_to_thread_alive, debug_to_find_new_threads): Delete.
(setup_target_debug): Adjust.
* gdbcore.h (core_ops): Delete declaration.
* inf-ptrace.c, linux-nat.c, remote.c, amd64-linux-nat.c,
inf-child.c, linux-thread-db.c, bsd-uthread.c, inf-ttrace.c,
i386-sol2-tdep.c, darwin-nat.c, gnu-nat.c, go32-nat.c,
hpux-thread.c, i386-linux-nat.c, i386fbsd-nat.c, monitor.c,
nto-procfs.c, remote-m32r-sdi.c, remote-mips.c, windows-nat.c,
alphabsd-nat.c, amd64bsd-nat.c, arm-linux-nat.c, armnbsd-nat.c,
bsd-kvm.c, hppa-hpux-nat.c, hppa-linux-nat.c, hppabsd-nat.c,
hppanbsd-nat.c, i386-darwin-nat.c, i386bsd-nat.c,
ia64-linux-nat.c, m32r-linux-nat.c, m68kbsd-nat.c,
m68klinux-nat.c, m88kbsd-nat.c, mips-linux-nat.c,
mips64obsd-nat.c, mipsnbsd-nat.c, ppc-linux-nat.c, ppcnbsd-nat.c,
ppcobsd-nat.c, remote-sim.c, rs6000-nat.c, s390-nat.c,
shnbsd-nat.c, sparc-nat.c, sparc-nat.h, spu-linux-nat.c,
vaxbsd-nat.c, xtensa-linux-nat.c: Adjust to target_ops changes.
* gdbarch.sh (core_pid_to_str): New gdbarch callback.
* gdbarch.h, gdbarch.c: Regenerate.
* sol2-tdep.c: Include "inferior.h".
(sol2_core_pid_to_str): New.
* sol2-tdep.h (sol2_core_pid_to_str): Declare.
* amd64-sol2-tdep.c (amd64_sol2_init_abi): Set it.
* sparc-sol2-tdep.c (sparc32_sol2_init_abi): Set it.
* sparc64-sol2-tdep.c (sparc64_sol2_init_abi): Set it.
* i386-sol2-tdep.c (i386_sol2_init_abi): Set it.
2009-02-23 01:03:50 +01:00
|
|
|
|
}
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
Implement core awareness.
* bcache.c (compare_ints): Remove
(print_percentage): Use compare_positive_ints.
* defs.h (compare_positive_ints): Declare.
* linux-nat.h (struct lin_lwp): New field core.
(linux_nat_core_of_thread_1): Declare.
* linux-nat.c (add_lwp): Init the 'core' field.
(linux_nat_wait_1): Record the core.
(linux_nat_core_of_thread_1, linux_nat_core_of_thread): New.
(linux_nat_add_target): Register the above.
* linux-thread-db.c (update_thread_core): New.
(thread_db_find_new_threads): Update core information for
every thread.
* remote.c (struct private_thread_info): New.
(free_private_thread_info, demand_private_info): New.
(PACKET_qXfer_threads, use_osdata_threads): New.
(struct thread_item, threads_parsing_context
(start_thread, end_thread, thread_attributes)
(thread_children, threads_children, threads_elements): New.
(remote_threads_info): Try qXfer:threads before anything
else.
(remote_protocol_packets): Register qXfer:threads.
(remote_open_1): Init use_osdata_threads.
(struct stop_reply): New field 'core'.
(remote_parse_stop_reply): Parse core number.
(process_stop_reply): Record core number.
(remote_xfer_partial): Handle qXfer:threads.
(remote_core_of_thread): New.
(init_remote_ops): Register remote_core_of_thread.
(_initialize_remote): Register qXfer:read.
* target.c (target_core_of_thread): New
* target.h (enum target_object): New value TARGET_OBJECT_THREADS.
(struct target_ops): New field to_core_of_threads.
(target_core_of_thread): Declare.
* gdbthread.h (struct thread_info): New field private_dtor.
* thread.c (print_thread_info): Report the core.
* ui-out.c (MAX_UI_OUT_LEVELS): Increase.
* utils.c (compare_positive_ints): New.
* features/threads.dtd: New.
* mi/mi-interp.c (mi_on_normal_stop): Report the core.
* mi/mi-main.c (struct collect_cores_data, collect_cores)
(do_nothing, free_vector_of_osdata_items)
(splay_tree_int_comparator, free_splay_tree): New.
(print_one_inferior_data): Implemented printing of selected
inferiors. Collect and print cores.
(output_cores): New.
(mi_cmd_list_thread_groups): Support --recurse. Permit specifying
thread groups together with --available.
2010-01-12 22:40:25 +01:00
|
|
|
|
int
|
|
|
|
|
target_core_of_thread (ptid_t ptid)
|
|
|
|
|
{
|
auto-generate most target debug methods
The target debug methods are inconsistently maintained. Most to_*
methods have some kind of targetdebug awareness, but not all of them
do. The ones that do vary in the quantity and quality of output they
generate.
This patch changes most of the target debug methods to be
automatically generated. All the arguments are printed, and separate
lines are printed for entering and existing the outermost call to the
target stack.
For example now you'd see:
-> multi-thread->to_terminal_ours (...)
-> multi-thread->to_is_async_p (...)
<- multi-thread->to_is_async_p (0x1ebb580) = 1
<- multi-thread->to_terminal_ours (0x1ebb580)
-> multi-thread->to_thread_address_space (...)
<- multi-thread->to_thread_address_space (0x1ebb580, 26802) = 1
In this case you can see nested calls. The "multi-thread" on the left
hand side is the topmost target's shortname.
There are some oddities with this patch. I'm on the fence about it
all, I really just wrote it on a whim.
It's not simple to convert every possible method, since a few don't
participate in target delegation.
Printing is done by type, so I introduced some new
debug-printing-specific typedefs to handle cases where it is nicer to
do something else.
On the plus side, this lays the groundwork for making targetdebug
affect every layer of the target stack. The idea would be to wrap
each target_ops in the stack with its own debug_target, and then you
could see calls propagate down the stack and back up; I suppose with
indentation to make it prettier. (That said there are some gotchas
lurking in this idea due to target stack introspection.)
Regtested on x86-64 Fedora 20.
2014-07-24 Tom Tromey <tromey@redhat.com>
* make-target-delegates (munge_type, write_debugmethod): New
functions.
(debug_names): New global.
($TARGET_DEBUG_PRINTER): New global.
(write_function_header): Strip TARGET_DEBUG_PRINTER from the type
name.
Write debug methods. Generate init_debug_target.
* target-debug.h: New file.
* target-delegates.c: Rebuild.
* target.c: Include target-debug.h.
(debug_target): Hoist definition.
(target_kill, target_get_section_table, target_memory_map)
(target_flash_erase, target_flash_done, target_detach)
(target_disconnect, target_wait, target_resume)
(target_pass_signals, target_program_signals, target_follow_fork)
(target_mourn_inferior, target_search_memory)
(target_thread_address_space, target_close)
(target_find_new_threads, target_core_of_thread)
(target_verify_memory, target_insert_mask_watchpoint)
(target_remove_mask_watchpoint): Remove targetdebug code.
(debug_to_post_attach, debug_to_prepare_to_store)
(debug_to_files_info, debug_to_insert_breakpoint)
(debug_to_remove_breakpoint, debug_to_can_use_hw_breakpoint)
(debug_to_region_ok_for_hw_watchpoint)
(debug_to_can_accel_watchpoint_condition)
(debug_to_stopped_by_watchpoint, debug_to_stopped_data_address)
(debug_to_watchpoint_addr_within_range)
(debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint)
(debug_to_insert_watchpoint, debug_to_remove_watchpoint)
(debug_to_terminal_init, debug_to_terminal_inferior)
(debug_to_terminal_ours_for_output, debug_to_terminal_ours)
(debug_to_terminal_save_ours, debug_to_terminal_info)
(debug_to_load, debug_to_post_startup_inferior)
(debug_to_insert_fork_catchpoint)
(debug_to_remove_fork_catchpoint)
(debug_to_insert_vfork_catchpoint)
(debug_to_remove_vfork_catchpoint)
(debug_to_insert_exec_catchpoint)
(debug_to_remove_exec_catchpoint, debug_to_has_exited)
(debug_to_can_run, debug_to_thread_architecture, debug_to_stop)
(debug_to_rcmd, debug_to_pid_to_exec_file): Remove.
(setup_target_debug): Call init_debug_target.
* target.h (TARGET_DEBUG_PRINTER): New macro.
(struct target_ops) <to_resume, to_wait, to_pass_signals,
to_program_signals>: Use TARGET_DEBUG_PRINTER.
2014-06-16 05:28:57 +02:00
|
|
|
|
return current_target.to_core_of_thread (¤t_target, ptid);
|
Implement core awareness.
* bcache.c (compare_ints): Remove
(print_percentage): Use compare_positive_ints.
* defs.h (compare_positive_ints): Declare.
* linux-nat.h (struct lin_lwp): New field core.
(linux_nat_core_of_thread_1): Declare.
* linux-nat.c (add_lwp): Init the 'core' field.
(linux_nat_wait_1): Record the core.
(linux_nat_core_of_thread_1, linux_nat_core_of_thread): New.
(linux_nat_add_target): Register the above.
* linux-thread-db.c (update_thread_core): New.
(thread_db_find_new_threads): Update core information for
every thread.
* remote.c (struct private_thread_info): New.
(free_private_thread_info, demand_private_info): New.
(PACKET_qXfer_threads, use_osdata_threads): New.
(struct thread_item, threads_parsing_context
(start_thread, end_thread, thread_attributes)
(thread_children, threads_children, threads_elements): New.
(remote_threads_info): Try qXfer:threads before anything
else.
(remote_protocol_packets): Register qXfer:threads.
(remote_open_1): Init use_osdata_threads.
(struct stop_reply): New field 'core'.
(remote_parse_stop_reply): Parse core number.
(process_stop_reply): Record core number.
(remote_xfer_partial): Handle qXfer:threads.
(remote_core_of_thread): New.
(init_remote_ops): Register remote_core_of_thread.
(_initialize_remote): Register qXfer:read.
* target.c (target_core_of_thread): New
* target.h (enum target_object): New value TARGET_OBJECT_THREADS.
(struct target_ops): New field to_core_of_threads.
(target_core_of_thread): Declare.
* gdbthread.h (struct thread_info): New field private_dtor.
* thread.c (print_thread_info): Report the core.
* ui-out.c (MAX_UI_OUT_LEVELS): Increase.
* utils.c (compare_positive_ints): New.
* features/threads.dtd: New.
* mi/mi-interp.c (mi_on_normal_stop): Report the core.
* mi/mi-main.c (struct collect_cores_data, collect_cores)
(do_nothing, free_vector_of_osdata_items)
(splay_tree_int_comparator, free_splay_tree): New.
(print_one_inferior_data): Implemented printing of selected
inferiors. Collect and print cores.
(output_cores): New.
(mi_cmd_list_thread_groups): Support --recurse. Permit specifying
thread groups together with --available.
2010-01-12 22:40:25 +01:00
|
|
|
|
}
|
|
|
|
|
|
Make compare-sections work against all targets; add compare-sections [-r] tests.
This does two things:
1. Adds a test.
Recently compare-sections got a new "-r" switch, but given no test
existed for compare-sections, the patch was allowed in with no
testsuite addition. This now adds a test for both compare-sections
and compare-sections -r.
2. Makes the compare-sections command work against all targets.
Currently, compare-sections only works with remote targets, and only
those that support the qCRC packet. The patch makes it so that if the
target doesn't support accelerating memory verification, then GDB
falls back to comparing memory itself. This is of course slower, but
it's better than nothing, IMO. While testing against extended-remote
GDBserver I noticed that we send the qCRC request to the target if
we're connected, but not yet running a program. That can't work of
course -- the patch fixes that. This all also goes in the direction
of bridging the local/remote parity gap.
I didn't decouple 1. from 2., because that would mean that the test
would need to handle the case of the target not supporting the
command.
Tested on x86_64 Fedora 17, native, remote GDBserver, and
extended-remote GDBserver. I also hack-disabled qCRC support to make
sure the fallback paths in remote.c work.
gdb/doc/
2014-05-20 Pedro Alves <palves@redhat.com>
* gdb.texinfo (Memory) <compare-sections>: Generalize comments to
not be remote specific. Add cross reference to the qCRC packet.
(Separate Debug Files): Update cross reference to the qCRC packet.
(General Query Packets) <qCRC packet>: Add anchor.
gdb/
2014-05-20 Pedro Alves <palves@redhat.com>
* NEWS: Mention that compare-sections now works with all targets.
* remote.c (PACKET_qCRC): New enum value.
(remote_verify_memory): Don't send qCRC if the target has no
execution. Use packet_support/packet_ok. If the target doesn't
support the qCRC packet, fallback to a deep memory copy.
(compare_sections_command): Say "target image" instead of "remote
executable".
(_initialize_remote): Add PACKET_qCRC to the list of config
packets that have no associated command. Extend comment.
* target.c (simple_verify_memory, default_verify_memory): New
function.
* target.h (struct target_ops) <to_verify_memory>: Default to
default_verify_memory.
(simple_verify_memory): New declaration.
* target-delegates.c: Regenerate.
gdb/testsuite/
2014-05-20 Pedro Alves <palves@redhat.com>
* gdb.base/compare-sections.c: New file.
* gdb.base/compare-sections.exp: New file.
2014-05-20 20:11:39 +02:00
|
|
|
|
int
|
|
|
|
|
simple_verify_memory (struct target_ops *ops,
|
|
|
|
|
const gdb_byte *data, CORE_ADDR lma, ULONGEST size)
|
|
|
|
|
{
|
|
|
|
|
LONGEST total_xfered = 0;
|
|
|
|
|
|
|
|
|
|
while (total_xfered < size)
|
|
|
|
|
{
|
|
|
|
|
ULONGEST xfered_len;
|
|
|
|
|
enum target_xfer_status status;
|
|
|
|
|
gdb_byte buf[1024];
|
|
|
|
|
ULONGEST howmuch = min (sizeof (buf), size - total_xfered);
|
|
|
|
|
|
|
|
|
|
status = target_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL,
|
|
|
|
|
buf, NULL, lma + total_xfered, howmuch,
|
|
|
|
|
&xfered_len);
|
|
|
|
|
if (status == TARGET_XFER_OK
|
|
|
|
|
&& memcmp (data + total_xfered, buf, xfered_len) == 0)
|
|
|
|
|
{
|
|
|
|
|
total_xfered += xfered_len;
|
|
|
|
|
QUIT;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Default implementation of memory verification. */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
default_verify_memory (struct target_ops *self,
|
|
|
|
|
const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size)
|
|
|
|
|
{
|
|
|
|
|
/* Start over from the top of the target stack. */
|
|
|
|
|
return simple_verify_memory (current_target.beneath,
|
|
|
|
|
data, memaddr, size);
|
|
|
|
|
}
|
|
|
|
|
|
2010-03-24 02:12:13 +01:00
|
|
|
|
int
|
|
|
|
|
target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size)
|
|
|
|
|
{
|
auto-generate most target debug methods
The target debug methods are inconsistently maintained. Most to_*
methods have some kind of targetdebug awareness, but not all of them
do. The ones that do vary in the quantity and quality of output they
generate.
This patch changes most of the target debug methods to be
automatically generated. All the arguments are printed, and separate
lines are printed for entering and existing the outermost call to the
target stack.
For example now you'd see:
-> multi-thread->to_terminal_ours (...)
-> multi-thread->to_is_async_p (...)
<- multi-thread->to_is_async_p (0x1ebb580) = 1
<- multi-thread->to_terminal_ours (0x1ebb580)
-> multi-thread->to_thread_address_space (...)
<- multi-thread->to_thread_address_space (0x1ebb580, 26802) = 1
In this case you can see nested calls. The "multi-thread" on the left
hand side is the topmost target's shortname.
There are some oddities with this patch. I'm on the fence about it
all, I really just wrote it on a whim.
It's not simple to convert every possible method, since a few don't
participate in target delegation.
Printing is done by type, so I introduced some new
debug-printing-specific typedefs to handle cases where it is nicer to
do something else.
On the plus side, this lays the groundwork for making targetdebug
affect every layer of the target stack. The idea would be to wrap
each target_ops in the stack with its own debug_target, and then you
could see calls propagate down the stack and back up; I suppose with
indentation to make it prettier. (That said there are some gotchas
lurking in this idea due to target stack introspection.)
Regtested on x86-64 Fedora 20.
2014-07-24 Tom Tromey <tromey@redhat.com>
* make-target-delegates (munge_type, write_debugmethod): New
functions.
(debug_names): New global.
($TARGET_DEBUG_PRINTER): New global.
(write_function_header): Strip TARGET_DEBUG_PRINTER from the type
name.
Write debug methods. Generate init_debug_target.
* target-debug.h: New file.
* target-delegates.c: Rebuild.
* target.c: Include target-debug.h.
(debug_target): Hoist definition.
(target_kill, target_get_section_table, target_memory_map)
(target_flash_erase, target_flash_done, target_detach)
(target_disconnect, target_wait, target_resume)
(target_pass_signals, target_program_signals, target_follow_fork)
(target_mourn_inferior, target_search_memory)
(target_thread_address_space, target_close)
(target_find_new_threads, target_core_of_thread)
(target_verify_memory, target_insert_mask_watchpoint)
(target_remove_mask_watchpoint): Remove targetdebug code.
(debug_to_post_attach, debug_to_prepare_to_store)
(debug_to_files_info, debug_to_insert_breakpoint)
(debug_to_remove_breakpoint, debug_to_can_use_hw_breakpoint)
(debug_to_region_ok_for_hw_watchpoint)
(debug_to_can_accel_watchpoint_condition)
(debug_to_stopped_by_watchpoint, debug_to_stopped_data_address)
(debug_to_watchpoint_addr_within_range)
(debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint)
(debug_to_insert_watchpoint, debug_to_remove_watchpoint)
(debug_to_terminal_init, debug_to_terminal_inferior)
(debug_to_terminal_ours_for_output, debug_to_terminal_ours)
(debug_to_terminal_save_ours, debug_to_terminal_info)
(debug_to_load, debug_to_post_startup_inferior)
(debug_to_insert_fork_catchpoint)
(debug_to_remove_fork_catchpoint)
(debug_to_insert_vfork_catchpoint)
(debug_to_remove_vfork_catchpoint)
(debug_to_insert_exec_catchpoint)
(debug_to_remove_exec_catchpoint, debug_to_has_exited)
(debug_to_can_run, debug_to_thread_architecture, debug_to_stop)
(debug_to_rcmd, debug_to_pid_to_exec_file): Remove.
(setup_target_debug): Call init_debug_target.
* target.h (TARGET_DEBUG_PRINTER): New macro.
(struct target_ops) <to_resume, to_wait, to_pass_signals,
to_program_signals>: Use TARGET_DEBUG_PRINTER.
2014-06-16 05:28:57 +02:00
|
|
|
|
return current_target.to_verify_memory (¤t_target,
|
|
|
|
|
data, memaddr, size);
|
2010-03-24 02:12:13 +01:00
|
|
|
|
}
|
|
|
|
|
|
2011-05-06 Sergio Durigan Junior <sergiodj@linux.vnet.ibm.com>
Thiago Jung Bauermann <bauerman@br.ibm.com>
Implement support for PowerPC BookE masked watchpoints.
gdb/
* NEWS: Mention masked watchpoint support. Create "Changed commands"
section.
* breakpoint.h (struct breakpoint_ops) <works_in_software_mode>: New
method. Initialize to NULL in all existing breakpoint_ops instances.
(struct breakpoint) <hw_wp_mask>: New field.
* breakpoint.c (is_masked_watchpoint): Add prototype.
(update_watchpoint): Don't set b->val for masked watchpoints. Call
breakpoint's breakpoint_ops.works_in_software_mode if available.
(watchpoints_triggered): Handle the case of a hardware masked
watchpoint trigger.
(watchpoint_check): Likewise.
(works_in_software_mode_watchpoint): New function.
(insert_masked_watchpoint, remove_masked_watchpoint)
(resources_needed_masked_watchpoint)
(works_in_software_mode_masked_watchpoint, print_it_masked_watchpoint)
(print_one_detail_masked_watchpoint, print_mention_masked_watchpoint)
(print_recreate_masked_watchpoint, is_masked_watchpoint): New
functions.
(masked_watchpoint_breakpoint_ops): New structure.
(watch_command_1): Check for the existence of the `mask' parameter.
Set b->ops according to the type of hardware watchpoint being created.
* ppc-linux-nat.c (ppc_linux_insert_mask_watchpoint)
(ppc_linux_remove_mask_watchpoint)
(ppc_linux_masked_watch_num_registers): New functions.
(_initialize_ppc_linux_nat): Initialize to_insert_mask_watchpoint,
to_remove_mask_watchpoint and to_masked_watch_num_registers.
* target.c (update_current_target): Mention to_insert_mask_watchpoint,
to_remove_mask_watchpoint, and to_masked_watch_num_registers.
(target_insert_mask_watchpoint, target_remove_mask_watchpoint)
(target_masked_watch_num_registers): New functions.
* target.h (struct target_ops) <to_insert_mask_watchpoint>,
<to_remove_mask_watchpoint>, <to_masked_watch_num_registers>: New
methods.
(target_insert_mask_watchpoint, target_remove_mask_watchpoint)
(target_masked_watch_num_registers): Add prototypes.
gdb/doc/
* gdb.texinfo (Set Watchpoints): Document mask parameter.
(PowerPC Embedded): Mention support of masked watchpoints.
2011-05-06 20:46:33 +02:00
|
|
|
|
/* The documentation for this function is in its prototype declaration in
|
|
|
|
|
target.h. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw)
|
|
|
|
|
{
|
auto-generate most target debug methods
The target debug methods are inconsistently maintained. Most to_*
methods have some kind of targetdebug awareness, but not all of them
do. The ones that do vary in the quantity and quality of output they
generate.
This patch changes most of the target debug methods to be
automatically generated. All the arguments are printed, and separate
lines are printed for entering and existing the outermost call to the
target stack.
For example now you'd see:
-> multi-thread->to_terminal_ours (...)
-> multi-thread->to_is_async_p (...)
<- multi-thread->to_is_async_p (0x1ebb580) = 1
<- multi-thread->to_terminal_ours (0x1ebb580)
-> multi-thread->to_thread_address_space (...)
<- multi-thread->to_thread_address_space (0x1ebb580, 26802) = 1
In this case you can see nested calls. The "multi-thread" on the left
hand side is the topmost target's shortname.
There are some oddities with this patch. I'm on the fence about it
all, I really just wrote it on a whim.
It's not simple to convert every possible method, since a few don't
participate in target delegation.
Printing is done by type, so I introduced some new
debug-printing-specific typedefs to handle cases where it is nicer to
do something else.
On the plus side, this lays the groundwork for making targetdebug
affect every layer of the target stack. The idea would be to wrap
each target_ops in the stack with its own debug_target, and then you
could see calls propagate down the stack and back up; I suppose with
indentation to make it prettier. (That said there are some gotchas
lurking in this idea due to target stack introspection.)
Regtested on x86-64 Fedora 20.
2014-07-24 Tom Tromey <tromey@redhat.com>
* make-target-delegates (munge_type, write_debugmethod): New
functions.
(debug_names): New global.
($TARGET_DEBUG_PRINTER): New global.
(write_function_header): Strip TARGET_DEBUG_PRINTER from the type
name.
Write debug methods. Generate init_debug_target.
* target-debug.h: New file.
* target-delegates.c: Rebuild.
* target.c: Include target-debug.h.
(debug_target): Hoist definition.
(target_kill, target_get_section_table, target_memory_map)
(target_flash_erase, target_flash_done, target_detach)
(target_disconnect, target_wait, target_resume)
(target_pass_signals, target_program_signals, target_follow_fork)
(target_mourn_inferior, target_search_memory)
(target_thread_address_space, target_close)
(target_find_new_threads, target_core_of_thread)
(target_verify_memory, target_insert_mask_watchpoint)
(target_remove_mask_watchpoint): Remove targetdebug code.
(debug_to_post_attach, debug_to_prepare_to_store)
(debug_to_files_info, debug_to_insert_breakpoint)
(debug_to_remove_breakpoint, debug_to_can_use_hw_breakpoint)
(debug_to_region_ok_for_hw_watchpoint)
(debug_to_can_accel_watchpoint_condition)
(debug_to_stopped_by_watchpoint, debug_to_stopped_data_address)
(debug_to_watchpoint_addr_within_range)
(debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint)
(debug_to_insert_watchpoint, debug_to_remove_watchpoint)
(debug_to_terminal_init, debug_to_terminal_inferior)
(debug_to_terminal_ours_for_output, debug_to_terminal_ours)
(debug_to_terminal_save_ours, debug_to_terminal_info)
(debug_to_load, debug_to_post_startup_inferior)
(debug_to_insert_fork_catchpoint)
(debug_to_remove_fork_catchpoint)
(debug_to_insert_vfork_catchpoint)
(debug_to_remove_vfork_catchpoint)
(debug_to_insert_exec_catchpoint)
(debug_to_remove_exec_catchpoint, debug_to_has_exited)
(debug_to_can_run, debug_to_thread_architecture, debug_to_stop)
(debug_to_rcmd, debug_to_pid_to_exec_file): Remove.
(setup_target_debug): Call init_debug_target.
* target.h (TARGET_DEBUG_PRINTER): New macro.
(struct target_ops) <to_resume, to_wait, to_pass_signals,
to_program_signals>: Use TARGET_DEBUG_PRINTER.
2014-06-16 05:28:57 +02:00
|
|
|
|
return current_target.to_insert_mask_watchpoint (¤t_target,
|
|
|
|
|
addr, mask, rw);
|
2011-05-06 Sergio Durigan Junior <sergiodj@linux.vnet.ibm.com>
Thiago Jung Bauermann <bauerman@br.ibm.com>
Implement support for PowerPC BookE masked watchpoints.
gdb/
* NEWS: Mention masked watchpoint support. Create "Changed commands"
section.
* breakpoint.h (struct breakpoint_ops) <works_in_software_mode>: New
method. Initialize to NULL in all existing breakpoint_ops instances.
(struct breakpoint) <hw_wp_mask>: New field.
* breakpoint.c (is_masked_watchpoint): Add prototype.
(update_watchpoint): Don't set b->val for masked watchpoints. Call
breakpoint's breakpoint_ops.works_in_software_mode if available.
(watchpoints_triggered): Handle the case of a hardware masked
watchpoint trigger.
(watchpoint_check): Likewise.
(works_in_software_mode_watchpoint): New function.
(insert_masked_watchpoint, remove_masked_watchpoint)
(resources_needed_masked_watchpoint)
(works_in_software_mode_masked_watchpoint, print_it_masked_watchpoint)
(print_one_detail_masked_watchpoint, print_mention_masked_watchpoint)
(print_recreate_masked_watchpoint, is_masked_watchpoint): New
functions.
(masked_watchpoint_breakpoint_ops): New structure.
(watch_command_1): Check for the existence of the `mask' parameter.
Set b->ops according to the type of hardware watchpoint being created.
* ppc-linux-nat.c (ppc_linux_insert_mask_watchpoint)
(ppc_linux_remove_mask_watchpoint)
(ppc_linux_masked_watch_num_registers): New functions.
(_initialize_ppc_linux_nat): Initialize to_insert_mask_watchpoint,
to_remove_mask_watchpoint and to_masked_watch_num_registers.
* target.c (update_current_target): Mention to_insert_mask_watchpoint,
to_remove_mask_watchpoint, and to_masked_watch_num_registers.
(target_insert_mask_watchpoint, target_remove_mask_watchpoint)
(target_masked_watch_num_registers): New functions.
* target.h (struct target_ops) <to_insert_mask_watchpoint>,
<to_remove_mask_watchpoint>, <to_masked_watch_num_registers>: New
methods.
(target_insert_mask_watchpoint, target_remove_mask_watchpoint)
(target_masked_watch_num_registers): Add prototypes.
gdb/doc/
* gdb.texinfo (Set Watchpoints): Document mask parameter.
(PowerPC Embedded): Mention support of masked watchpoints.
2011-05-06 20:46:33 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* The documentation for this function is in its prototype declaration in
|
|
|
|
|
target.h. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw)
|
|
|
|
|
{
|
auto-generate most target debug methods
The target debug methods are inconsistently maintained. Most to_*
methods have some kind of targetdebug awareness, but not all of them
do. The ones that do vary in the quantity and quality of output they
generate.
This patch changes most of the target debug methods to be
automatically generated. All the arguments are printed, and separate
lines are printed for entering and existing the outermost call to the
target stack.
For example now you'd see:
-> multi-thread->to_terminal_ours (...)
-> multi-thread->to_is_async_p (...)
<- multi-thread->to_is_async_p (0x1ebb580) = 1
<- multi-thread->to_terminal_ours (0x1ebb580)
-> multi-thread->to_thread_address_space (...)
<- multi-thread->to_thread_address_space (0x1ebb580, 26802) = 1
In this case you can see nested calls. The "multi-thread" on the left
hand side is the topmost target's shortname.
There are some oddities with this patch. I'm on the fence about it
all, I really just wrote it on a whim.
It's not simple to convert every possible method, since a few don't
participate in target delegation.
Printing is done by type, so I introduced some new
debug-printing-specific typedefs to handle cases where it is nicer to
do something else.
On the plus side, this lays the groundwork for making targetdebug
affect every layer of the target stack. The idea would be to wrap
each target_ops in the stack with its own debug_target, and then you
could see calls propagate down the stack and back up; I suppose with
indentation to make it prettier. (That said there are some gotchas
lurking in this idea due to target stack introspection.)
Regtested on x86-64 Fedora 20.
2014-07-24 Tom Tromey <tromey@redhat.com>
* make-target-delegates (munge_type, write_debugmethod): New
functions.
(debug_names): New global.
($TARGET_DEBUG_PRINTER): New global.
(write_function_header): Strip TARGET_DEBUG_PRINTER from the type
name.
Write debug methods. Generate init_debug_target.
* target-debug.h: New file.
* target-delegates.c: Rebuild.
* target.c: Include target-debug.h.
(debug_target): Hoist definition.
(target_kill, target_get_section_table, target_memory_map)
(target_flash_erase, target_flash_done, target_detach)
(target_disconnect, target_wait, target_resume)
(target_pass_signals, target_program_signals, target_follow_fork)
(target_mourn_inferior, target_search_memory)
(target_thread_address_space, target_close)
(target_find_new_threads, target_core_of_thread)
(target_verify_memory, target_insert_mask_watchpoint)
(target_remove_mask_watchpoint): Remove targetdebug code.
(debug_to_post_attach, debug_to_prepare_to_store)
(debug_to_files_info, debug_to_insert_breakpoint)
(debug_to_remove_breakpoint, debug_to_can_use_hw_breakpoint)
(debug_to_region_ok_for_hw_watchpoint)
(debug_to_can_accel_watchpoint_condition)
(debug_to_stopped_by_watchpoint, debug_to_stopped_data_address)
(debug_to_watchpoint_addr_within_range)
(debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint)
(debug_to_insert_watchpoint, debug_to_remove_watchpoint)
(debug_to_terminal_init, debug_to_terminal_inferior)
(debug_to_terminal_ours_for_output, debug_to_terminal_ours)
(debug_to_terminal_save_ours, debug_to_terminal_info)
(debug_to_load, debug_to_post_startup_inferior)
(debug_to_insert_fork_catchpoint)
(debug_to_remove_fork_catchpoint)
(debug_to_insert_vfork_catchpoint)
(debug_to_remove_vfork_catchpoint)
(debug_to_insert_exec_catchpoint)
(debug_to_remove_exec_catchpoint, debug_to_has_exited)
(debug_to_can_run, debug_to_thread_architecture, debug_to_stop)
(debug_to_rcmd, debug_to_pid_to_exec_file): Remove.
(setup_target_debug): Call init_debug_target.
* target.h (TARGET_DEBUG_PRINTER): New macro.
(struct target_ops) <to_resume, to_wait, to_pass_signals,
to_program_signals>: Use TARGET_DEBUG_PRINTER.
2014-06-16 05:28:57 +02:00
|
|
|
|
return current_target.to_remove_mask_watchpoint (¤t_target,
|
|
|
|
|
addr, mask, rw);
|
2011-05-06 Sergio Durigan Junior <sergiodj@linux.vnet.ibm.com>
Thiago Jung Bauermann <bauerman@br.ibm.com>
Implement support for PowerPC BookE masked watchpoints.
gdb/
* NEWS: Mention masked watchpoint support. Create "Changed commands"
section.
* breakpoint.h (struct breakpoint_ops) <works_in_software_mode>: New
method. Initialize to NULL in all existing breakpoint_ops instances.
(struct breakpoint) <hw_wp_mask>: New field.
* breakpoint.c (is_masked_watchpoint): Add prototype.
(update_watchpoint): Don't set b->val for masked watchpoints. Call
breakpoint's breakpoint_ops.works_in_software_mode if available.
(watchpoints_triggered): Handle the case of a hardware masked
watchpoint trigger.
(watchpoint_check): Likewise.
(works_in_software_mode_watchpoint): New function.
(insert_masked_watchpoint, remove_masked_watchpoint)
(resources_needed_masked_watchpoint)
(works_in_software_mode_masked_watchpoint, print_it_masked_watchpoint)
(print_one_detail_masked_watchpoint, print_mention_masked_watchpoint)
(print_recreate_masked_watchpoint, is_masked_watchpoint): New
functions.
(masked_watchpoint_breakpoint_ops): New structure.
(watch_command_1): Check for the existence of the `mask' parameter.
Set b->ops according to the type of hardware watchpoint being created.
* ppc-linux-nat.c (ppc_linux_insert_mask_watchpoint)
(ppc_linux_remove_mask_watchpoint)
(ppc_linux_masked_watch_num_registers): New functions.
(_initialize_ppc_linux_nat): Initialize to_insert_mask_watchpoint,
to_remove_mask_watchpoint and to_masked_watch_num_registers.
* target.c (update_current_target): Mention to_insert_mask_watchpoint,
to_remove_mask_watchpoint, and to_masked_watch_num_registers.
(target_insert_mask_watchpoint, target_remove_mask_watchpoint)
(target_masked_watch_num_registers): New functions.
* target.h (struct target_ops) <to_insert_mask_watchpoint>,
<to_remove_mask_watchpoint>, <to_masked_watch_num_registers>: New
methods.
(target_insert_mask_watchpoint, target_remove_mask_watchpoint)
(target_masked_watch_num_registers): Add prototypes.
gdb/doc/
* gdb.texinfo (Set Watchpoints): Document mask parameter.
(PowerPC Embedded): Mention support of masked watchpoints.
2011-05-06 20:46:33 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* The documentation for this function is in its prototype declaration
|
|
|
|
|
in target.h. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask)
|
|
|
|
|
{
|
2013-12-18 22:34:15 +01:00
|
|
|
|
return current_target.to_masked_watch_num_registers (¤t_target,
|
|
|
|
|
addr, mask);
|
2011-05-06 Sergio Durigan Junior <sergiodj@linux.vnet.ibm.com>
Thiago Jung Bauermann <bauerman@br.ibm.com>
Implement support for PowerPC BookE masked watchpoints.
gdb/
* NEWS: Mention masked watchpoint support. Create "Changed commands"
section.
* breakpoint.h (struct breakpoint_ops) <works_in_software_mode>: New
method. Initialize to NULL in all existing breakpoint_ops instances.
(struct breakpoint) <hw_wp_mask>: New field.
* breakpoint.c (is_masked_watchpoint): Add prototype.
(update_watchpoint): Don't set b->val for masked watchpoints. Call
breakpoint's breakpoint_ops.works_in_software_mode if available.
(watchpoints_triggered): Handle the case of a hardware masked
watchpoint trigger.
(watchpoint_check): Likewise.
(works_in_software_mode_watchpoint): New function.
(insert_masked_watchpoint, remove_masked_watchpoint)
(resources_needed_masked_watchpoint)
(works_in_software_mode_masked_watchpoint, print_it_masked_watchpoint)
(print_one_detail_masked_watchpoint, print_mention_masked_watchpoint)
(print_recreate_masked_watchpoint, is_masked_watchpoint): New
functions.
(masked_watchpoint_breakpoint_ops): New structure.
(watch_command_1): Check for the existence of the `mask' parameter.
Set b->ops according to the type of hardware watchpoint being created.
* ppc-linux-nat.c (ppc_linux_insert_mask_watchpoint)
(ppc_linux_remove_mask_watchpoint)
(ppc_linux_masked_watch_num_registers): New functions.
(_initialize_ppc_linux_nat): Initialize to_insert_mask_watchpoint,
to_remove_mask_watchpoint and to_masked_watch_num_registers.
* target.c (update_current_target): Mention to_insert_mask_watchpoint,
to_remove_mask_watchpoint, and to_masked_watch_num_registers.
(target_insert_mask_watchpoint, target_remove_mask_watchpoint)
(target_masked_watch_num_registers): New functions.
* target.h (struct target_ops) <to_insert_mask_watchpoint>,
<to_remove_mask_watchpoint>, <to_masked_watch_num_registers>: New
methods.
(target_insert_mask_watchpoint, target_remove_mask_watchpoint)
(target_masked_watch_num_registers): Add prototypes.
gdb/doc/
* gdb.texinfo (Set Watchpoints): Document mask parameter.
(PowerPC Embedded): Mention support of masked watchpoints.
2011-05-06 20:46:33 +02:00
|
|
|
|
}
|
|
|
|
|
|
2011-03-31 16:32:49 +02:00
|
|
|
|
/* The documentation for this function is in its prototype declaration
|
|
|
|
|
in target.h. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
target_ranged_break_num_registers (void)
|
|
|
|
|
{
|
2013-12-18 22:31:42 +01:00
|
|
|
|
return current_target.to_ranged_break_num_registers (¤t_target);
|
2011-03-31 16:32:49 +02:00
|
|
|
|
}
|
|
|
|
|
|
2013-03-11 09:17:08 +01:00
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
2014-01-17 13:29:19 +01:00
|
|
|
|
int
|
|
|
|
|
target_supports_btrace (enum btrace_format format)
|
|
|
|
|
{
|
|
|
|
|
return current_target.to_supports_btrace (¤t_target, format);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
2013-03-11 09:17:08 +01:00
|
|
|
|
struct btrace_target_info *
|
2013-11-28 15:44:13 +01:00
|
|
|
|
target_enable_btrace (ptid_t ptid, const struct btrace_config *conf)
|
2013-03-11 09:17:08 +01:00
|
|
|
|
{
|
2013-11-28 15:44:13 +01:00
|
|
|
|
return current_target.to_enable_btrace (¤t_target, ptid, conf);
|
2013-03-11 09:17:08 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_disable_btrace (struct btrace_target_info *btinfo)
|
|
|
|
|
{
|
2013-12-19 16:17:16 +01:00
|
|
|
|
current_target.to_disable_btrace (¤t_target, btinfo);
|
2013-03-11 09:17:08 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_teardown_btrace (struct btrace_target_info *btinfo)
|
|
|
|
|
{
|
2013-12-19 16:18:04 +01:00
|
|
|
|
current_target.to_teardown_btrace (¤t_target, btinfo);
|
2013-03-11 09:17:08 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
2013-06-03 15:39:35 +02:00
|
|
|
|
enum btrace_error
|
2013-11-13 15:31:07 +01:00
|
|
|
|
target_read_btrace (struct btrace_data *btrace,
|
2013-06-03 15:39:35 +02:00
|
|
|
|
struct btrace_target_info *btinfo,
|
2013-03-11 09:17:08 +01:00
|
|
|
|
enum btrace_read_type type)
|
|
|
|
|
{
|
2013-12-19 16:19:02 +01:00
|
|
|
|
return current_target.to_read_btrace (¤t_target, btrace, btinfo, type);
|
2013-03-11 09:17:08 +01:00
|
|
|
|
}
|
|
|
|
|
|
Split record.h into record.h and record-full.h.
Split record.c into record.c and record-full.c.
The split leaves the command part in record.c and moves the target part into
record-full.c.
gdb/
* record.h: Split into this and ...
* record-full.h: ... this.
* record.c: Split into this and ...
* record-full.c: ... this.
* target.h (target_ops): Add new fields to_info_record,
to_save_record, to_delete_record, to_record_is_replaying,
to_goto_record_begin, to_goto_record_end, to_goto_record.
(target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* target.c (target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* record.h: Declare struct cmd_list_element.
(record_cmdlist): New declaration.
(set_record_cmdlist): New declaration.
(show_record_cmdlist): New declaration.
(info_record_cmdlist): New declaration.
(cmd_record_goto): New declaration.
* record.c: Remove unnecessary includes.
Include inferior.h.
(cmd_record_goto): Remove declaration.
(record_cmdlist): Now extern. Initialize.
(set_record_cmdlist): Now extern. Initialize.
(show_record_cmdlist): Now extern. Initialize.
(info_record_cmdlist): Now extern. Initialize.
(find_record_target): New.
(require_record_target): New.
(cmd_record_start): Update.
(cmd_record_delete): Remove target-specific code.
Call target_delete_record.
(cmd_record_stop): Unpush any record target.
(set_record_insn_max_num): Move to record-full.c
(set_record_command): Add comment.
(show_record_command): Add comment.
(info_record_command): Update comment.
Remove target-specific code.
Call the record target's to_info_record.
(cmd_record_start): New.
(cmd_record_goto): Now extern.
Remove target-specific code.
Call target_goto_begin, target_goto_end, or target_goto.
(_initialize_record): Move record target ops initialization to
record-full.c.
Change "record" command help text.
Move "record restore", "record set", and "record show" commands to
record-full.c.
* Makefile.in (SFILES): Add record-full.c.
(HFILES_NO_SRCDIR): Add record-full.h.
(COMMON_OBS): Add record-full.o.
* amd64-linux-tdep.c: Include record-full.h instead of record.h.
* arm-tdep.c: Include record-full.h.
* i386-linux-tdep.c: Include record-full.h instead of record.h.
* i386-tdep.c: Include record-full.h.
* infrun.c: Include record-full.h.
* linux-record.c: Include record-full.h.
* moxie-tdep.c: Include record-full.h.
* record-full.c: Include record-full.h.
Change module comment.
(set_record_full_cmdlist): New.
(show_record_full_cmdlist): New.
(record_full_cmdlist): New.
(record_goto_insn): New declaration.
(record_save): New declaration.
(record_check_insn_num): Change query string.
(record_info): New.
(record_delete): New.
(record_is_replaying): New.
(record_goto_entry): New.
(record_goto_begin): New.
(record_goto_end): New.
(record_goto): New.
(init_record_ops): Update.
(init_record_core_ops): Update.
(cmd_record_save): Rename to record_save. Remove target and arg checks.
(cmd_record_start): New.
(set_record_insn_max_num): Moved from record.c
(set_record_full_command): New.
(show_record_full_command): New.
(_initialize_record_full): New.
2013-03-11 09:42:55 +01:00
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
2013-11-28 15:44:13 +01:00
|
|
|
|
const struct btrace_config *
|
|
|
|
|
target_btrace_conf (const struct btrace_target_info *btinfo)
|
|
|
|
|
{
|
|
|
|
|
return current_target.to_btrace_conf (¤t_target, btinfo);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
2013-03-11 09:47:10 +01:00
|
|
|
|
void
|
|
|
|
|
target_stop_recording (void)
|
|
|
|
|
{
|
2013-12-19 16:21:20 +01:00
|
|
|
|
current_target.to_stop_recording (¤t_target);
|
2013-03-11 09:47:10 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
Split record.h into record.h and record-full.h.
Split record.c into record.c and record-full.c.
The split leaves the command part in record.c and moves the target part into
record-full.c.
gdb/
* record.h: Split into this and ...
* record-full.h: ... this.
* record.c: Split into this and ...
* record-full.c: ... this.
* target.h (target_ops): Add new fields to_info_record,
to_save_record, to_delete_record, to_record_is_replaying,
to_goto_record_begin, to_goto_record_end, to_goto_record.
(target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* target.c (target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* record.h: Declare struct cmd_list_element.
(record_cmdlist): New declaration.
(set_record_cmdlist): New declaration.
(show_record_cmdlist): New declaration.
(info_record_cmdlist): New declaration.
(cmd_record_goto): New declaration.
* record.c: Remove unnecessary includes.
Include inferior.h.
(cmd_record_goto): Remove declaration.
(record_cmdlist): Now extern. Initialize.
(set_record_cmdlist): Now extern. Initialize.
(show_record_cmdlist): Now extern. Initialize.
(info_record_cmdlist): Now extern. Initialize.
(find_record_target): New.
(require_record_target): New.
(cmd_record_start): Update.
(cmd_record_delete): Remove target-specific code.
Call target_delete_record.
(cmd_record_stop): Unpush any record target.
(set_record_insn_max_num): Move to record-full.c
(set_record_command): Add comment.
(show_record_command): Add comment.
(info_record_command): Update comment.
Remove target-specific code.
Call the record target's to_info_record.
(cmd_record_start): New.
(cmd_record_goto): Now extern.
Remove target-specific code.
Call target_goto_begin, target_goto_end, or target_goto.
(_initialize_record): Move record target ops initialization to
record-full.c.
Change "record" command help text.
Move "record restore", "record set", and "record show" commands to
record-full.c.
* Makefile.in (SFILES): Add record-full.c.
(HFILES_NO_SRCDIR): Add record-full.h.
(COMMON_OBS): Add record-full.o.
* amd64-linux-tdep.c: Include record-full.h instead of record.h.
* arm-tdep.c: Include record-full.h.
* i386-linux-tdep.c: Include record-full.h instead of record.h.
* i386-tdep.c: Include record-full.h.
* infrun.c: Include record-full.h.
* linux-record.c: Include record-full.h.
* moxie-tdep.c: Include record-full.h.
* record-full.c: Include record-full.h.
Change module comment.
(set_record_full_cmdlist): New.
(show_record_full_cmdlist): New.
(record_full_cmdlist): New.
(record_goto_insn): New declaration.
(record_save): New declaration.
(record_check_insn_num): Change query string.
(record_info): New.
(record_delete): New.
(record_is_replaying): New.
(record_goto_entry): New.
(record_goto_begin): New.
(record_goto_end): New.
(record_goto): New.
(init_record_ops): Update.
(init_record_core_ops): Update.
(cmd_record_save): Rename to record_save. Remove target and arg checks.
(cmd_record_start): New.
(set_record_insn_max_num): Moved from record.c
(set_record_full_command): New.
(show_record_full_command): New.
(_initialize_record_full): New.
2013-03-11 09:42:55 +01:00
|
|
|
|
void
|
2013-05-14 22:30:48 +02:00
|
|
|
|
target_save_record (const char *filename)
|
Split record.h into record.h and record-full.h.
Split record.c into record.c and record-full.c.
The split leaves the command part in record.c and moves the target part into
record-full.c.
gdb/
* record.h: Split into this and ...
* record-full.h: ... this.
* record.c: Split into this and ...
* record-full.c: ... this.
* target.h (target_ops): Add new fields to_info_record,
to_save_record, to_delete_record, to_record_is_replaying,
to_goto_record_begin, to_goto_record_end, to_goto_record.
(target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* target.c (target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* record.h: Declare struct cmd_list_element.
(record_cmdlist): New declaration.
(set_record_cmdlist): New declaration.
(show_record_cmdlist): New declaration.
(info_record_cmdlist): New declaration.
(cmd_record_goto): New declaration.
* record.c: Remove unnecessary includes.
Include inferior.h.
(cmd_record_goto): Remove declaration.
(record_cmdlist): Now extern. Initialize.
(set_record_cmdlist): Now extern. Initialize.
(show_record_cmdlist): Now extern. Initialize.
(info_record_cmdlist): Now extern. Initialize.
(find_record_target): New.
(require_record_target): New.
(cmd_record_start): Update.
(cmd_record_delete): Remove target-specific code.
Call target_delete_record.
(cmd_record_stop): Unpush any record target.
(set_record_insn_max_num): Move to record-full.c
(set_record_command): Add comment.
(show_record_command): Add comment.
(info_record_command): Update comment.
Remove target-specific code.
Call the record target's to_info_record.
(cmd_record_start): New.
(cmd_record_goto): Now extern.
Remove target-specific code.
Call target_goto_begin, target_goto_end, or target_goto.
(_initialize_record): Move record target ops initialization to
record-full.c.
Change "record" command help text.
Move "record restore", "record set", and "record show" commands to
record-full.c.
* Makefile.in (SFILES): Add record-full.c.
(HFILES_NO_SRCDIR): Add record-full.h.
(COMMON_OBS): Add record-full.o.
* amd64-linux-tdep.c: Include record-full.h instead of record.h.
* arm-tdep.c: Include record-full.h.
* i386-linux-tdep.c: Include record-full.h instead of record.h.
* i386-tdep.c: Include record-full.h.
* infrun.c: Include record-full.h.
* linux-record.c: Include record-full.h.
* moxie-tdep.c: Include record-full.h.
* record-full.c: Include record-full.h.
Change module comment.
(set_record_full_cmdlist): New.
(show_record_full_cmdlist): New.
(record_full_cmdlist): New.
(record_goto_insn): New declaration.
(record_save): New declaration.
(record_check_insn_num): Change query string.
(record_info): New.
(record_delete): New.
(record_is_replaying): New.
(record_goto_entry): New.
(record_goto_begin): New.
(record_goto_end): New.
(record_goto): New.
(init_record_ops): Update.
(init_record_core_ops): Update.
(cmd_record_save): Rename to record_save. Remove target and arg checks.
(cmd_record_start): New.
(set_record_insn_max_num): Moved from record.c
(set_record_full_command): New.
(show_record_full_command): New.
(_initialize_record_full): New.
2013-03-11 09:42:55 +01:00
|
|
|
|
{
|
2013-12-19 04:26:34 +01:00
|
|
|
|
current_target.to_save_record (¤t_target, filename);
|
Split record.h into record.h and record-full.h.
Split record.c into record.c and record-full.c.
The split leaves the command part in record.c and moves the target part into
record-full.c.
gdb/
* record.h: Split into this and ...
* record-full.h: ... this.
* record.c: Split into this and ...
* record-full.c: ... this.
* target.h (target_ops): Add new fields to_info_record,
to_save_record, to_delete_record, to_record_is_replaying,
to_goto_record_begin, to_goto_record_end, to_goto_record.
(target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* target.c (target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* record.h: Declare struct cmd_list_element.
(record_cmdlist): New declaration.
(set_record_cmdlist): New declaration.
(show_record_cmdlist): New declaration.
(info_record_cmdlist): New declaration.
(cmd_record_goto): New declaration.
* record.c: Remove unnecessary includes.
Include inferior.h.
(cmd_record_goto): Remove declaration.
(record_cmdlist): Now extern. Initialize.
(set_record_cmdlist): Now extern. Initialize.
(show_record_cmdlist): Now extern. Initialize.
(info_record_cmdlist): Now extern. Initialize.
(find_record_target): New.
(require_record_target): New.
(cmd_record_start): Update.
(cmd_record_delete): Remove target-specific code.
Call target_delete_record.
(cmd_record_stop): Unpush any record target.
(set_record_insn_max_num): Move to record-full.c
(set_record_command): Add comment.
(show_record_command): Add comment.
(info_record_command): Update comment.
Remove target-specific code.
Call the record target's to_info_record.
(cmd_record_start): New.
(cmd_record_goto): Now extern.
Remove target-specific code.
Call target_goto_begin, target_goto_end, or target_goto.
(_initialize_record): Move record target ops initialization to
record-full.c.
Change "record" command help text.
Move "record restore", "record set", and "record show" commands to
record-full.c.
* Makefile.in (SFILES): Add record-full.c.
(HFILES_NO_SRCDIR): Add record-full.h.
(COMMON_OBS): Add record-full.o.
* amd64-linux-tdep.c: Include record-full.h instead of record.h.
* arm-tdep.c: Include record-full.h.
* i386-linux-tdep.c: Include record-full.h instead of record.h.
* i386-tdep.c: Include record-full.h.
* infrun.c: Include record-full.h.
* linux-record.c: Include record-full.h.
* moxie-tdep.c: Include record-full.h.
* record-full.c: Include record-full.h.
Change module comment.
(set_record_full_cmdlist): New.
(show_record_full_cmdlist): New.
(record_full_cmdlist): New.
(record_goto_insn): New declaration.
(record_save): New declaration.
(record_check_insn_num): Change query string.
(record_info): New.
(record_delete): New.
(record_is_replaying): New.
(record_goto_entry): New.
(record_goto_begin): New.
(record_goto_end): New.
(record_goto): New.
(init_record_ops): Update.
(init_record_core_ops): Update.
(cmd_record_save): Rename to record_save. Remove target and arg checks.
(cmd_record_start): New.
(set_record_insn_max_num): Moved from record.c
(set_record_full_command): New.
(show_record_full_command): New.
(_initialize_record_full): New.
2013-03-11 09:42:55 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
target_supports_delete_record (void)
|
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
|
|
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
2014-07-11 16:30:34 +02:00
|
|
|
|
if (t->to_delete_record != delegate_delete_record
|
|
|
|
|
&& t->to_delete_record != tdefault_delete_record)
|
Split record.h into record.h and record-full.h.
Split record.c into record.c and record-full.c.
The split leaves the command part in record.c and moves the target part into
record-full.c.
gdb/
* record.h: Split into this and ...
* record-full.h: ... this.
* record.c: Split into this and ...
* record-full.c: ... this.
* target.h (target_ops): Add new fields to_info_record,
to_save_record, to_delete_record, to_record_is_replaying,
to_goto_record_begin, to_goto_record_end, to_goto_record.
(target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* target.c (target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* record.h: Declare struct cmd_list_element.
(record_cmdlist): New declaration.
(set_record_cmdlist): New declaration.
(show_record_cmdlist): New declaration.
(info_record_cmdlist): New declaration.
(cmd_record_goto): New declaration.
* record.c: Remove unnecessary includes.
Include inferior.h.
(cmd_record_goto): Remove declaration.
(record_cmdlist): Now extern. Initialize.
(set_record_cmdlist): Now extern. Initialize.
(show_record_cmdlist): Now extern. Initialize.
(info_record_cmdlist): Now extern. Initialize.
(find_record_target): New.
(require_record_target): New.
(cmd_record_start): Update.
(cmd_record_delete): Remove target-specific code.
Call target_delete_record.
(cmd_record_stop): Unpush any record target.
(set_record_insn_max_num): Move to record-full.c
(set_record_command): Add comment.
(show_record_command): Add comment.
(info_record_command): Update comment.
Remove target-specific code.
Call the record target's to_info_record.
(cmd_record_start): New.
(cmd_record_goto): Now extern.
Remove target-specific code.
Call target_goto_begin, target_goto_end, or target_goto.
(_initialize_record): Move record target ops initialization to
record-full.c.
Change "record" command help text.
Move "record restore", "record set", and "record show" commands to
record-full.c.
* Makefile.in (SFILES): Add record-full.c.
(HFILES_NO_SRCDIR): Add record-full.h.
(COMMON_OBS): Add record-full.o.
* amd64-linux-tdep.c: Include record-full.h instead of record.h.
* arm-tdep.c: Include record-full.h.
* i386-linux-tdep.c: Include record-full.h instead of record.h.
* i386-tdep.c: Include record-full.h.
* infrun.c: Include record-full.h.
* linux-record.c: Include record-full.h.
* moxie-tdep.c: Include record-full.h.
* record-full.c: Include record-full.h.
Change module comment.
(set_record_full_cmdlist): New.
(show_record_full_cmdlist): New.
(record_full_cmdlist): New.
(record_goto_insn): New declaration.
(record_save): New declaration.
(record_check_insn_num): Change query string.
(record_info): New.
(record_delete): New.
(record_is_replaying): New.
(record_goto_entry): New.
(record_goto_begin): New.
(record_goto_end): New.
(record_goto): New.
(init_record_ops): Update.
(init_record_core_ops): Update.
(cmd_record_save): Rename to record_save. Remove target and arg checks.
(cmd_record_start): New.
(set_record_insn_max_num): Moved from record.c
(set_record_full_command): New.
(show_record_full_command): New.
(_initialize_record_full): New.
2013-03-11 09:42:55 +01:00
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_delete_record (void)
|
|
|
|
|
{
|
2013-12-19 04:25:47 +01:00
|
|
|
|
current_target.to_delete_record (¤t_target);
|
Split record.h into record.h and record-full.h.
Split record.c into record.c and record-full.c.
The split leaves the command part in record.c and moves the target part into
record-full.c.
gdb/
* record.h: Split into this and ...
* record-full.h: ... this.
* record.c: Split into this and ...
* record-full.c: ... this.
* target.h (target_ops): Add new fields to_info_record,
to_save_record, to_delete_record, to_record_is_replaying,
to_goto_record_begin, to_goto_record_end, to_goto_record.
(target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* target.c (target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* record.h: Declare struct cmd_list_element.
(record_cmdlist): New declaration.
(set_record_cmdlist): New declaration.
(show_record_cmdlist): New declaration.
(info_record_cmdlist): New declaration.
(cmd_record_goto): New declaration.
* record.c: Remove unnecessary includes.
Include inferior.h.
(cmd_record_goto): Remove declaration.
(record_cmdlist): Now extern. Initialize.
(set_record_cmdlist): Now extern. Initialize.
(show_record_cmdlist): Now extern. Initialize.
(info_record_cmdlist): Now extern. Initialize.
(find_record_target): New.
(require_record_target): New.
(cmd_record_start): Update.
(cmd_record_delete): Remove target-specific code.
Call target_delete_record.
(cmd_record_stop): Unpush any record target.
(set_record_insn_max_num): Move to record-full.c
(set_record_command): Add comment.
(show_record_command): Add comment.
(info_record_command): Update comment.
Remove target-specific code.
Call the record target's to_info_record.
(cmd_record_start): New.
(cmd_record_goto): Now extern.
Remove target-specific code.
Call target_goto_begin, target_goto_end, or target_goto.
(_initialize_record): Move record target ops initialization to
record-full.c.
Change "record" command help text.
Move "record restore", "record set", and "record show" commands to
record-full.c.
* Makefile.in (SFILES): Add record-full.c.
(HFILES_NO_SRCDIR): Add record-full.h.
(COMMON_OBS): Add record-full.o.
* amd64-linux-tdep.c: Include record-full.h instead of record.h.
* arm-tdep.c: Include record-full.h.
* i386-linux-tdep.c: Include record-full.h instead of record.h.
* i386-tdep.c: Include record-full.h.
* infrun.c: Include record-full.h.
* linux-record.c: Include record-full.h.
* moxie-tdep.c: Include record-full.h.
* record-full.c: Include record-full.h.
Change module comment.
(set_record_full_cmdlist): New.
(show_record_full_cmdlist): New.
(record_full_cmdlist): New.
(record_goto_insn): New declaration.
(record_save): New declaration.
(record_check_insn_num): Change query string.
(record_info): New.
(record_delete): New.
(record_is_replaying): New.
(record_goto_entry): New.
(record_goto_begin): New.
(record_goto_end): New.
(record_goto): New.
(init_record_ops): Update.
(init_record_core_ops): Update.
(cmd_record_save): Rename to record_save. Remove target and arg checks.
(cmd_record_start): New.
(set_record_insn_max_num): Moved from record.c
(set_record_full_command): New.
(show_record_full_command): New.
(_initialize_record_full): New.
2013-03-11 09:42:55 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
target_record_is_replaying (void)
|
|
|
|
|
{
|
2013-12-19 04:25:01 +01:00
|
|
|
|
return current_target.to_record_is_replaying (¤t_target);
|
Split record.h into record.h and record-full.h.
Split record.c into record.c and record-full.c.
The split leaves the command part in record.c and moves the target part into
record-full.c.
gdb/
* record.h: Split into this and ...
* record-full.h: ... this.
* record.c: Split into this and ...
* record-full.c: ... this.
* target.h (target_ops): Add new fields to_info_record,
to_save_record, to_delete_record, to_record_is_replaying,
to_goto_record_begin, to_goto_record_end, to_goto_record.
(target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* target.c (target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* record.h: Declare struct cmd_list_element.
(record_cmdlist): New declaration.
(set_record_cmdlist): New declaration.
(show_record_cmdlist): New declaration.
(info_record_cmdlist): New declaration.
(cmd_record_goto): New declaration.
* record.c: Remove unnecessary includes.
Include inferior.h.
(cmd_record_goto): Remove declaration.
(record_cmdlist): Now extern. Initialize.
(set_record_cmdlist): Now extern. Initialize.
(show_record_cmdlist): Now extern. Initialize.
(info_record_cmdlist): Now extern. Initialize.
(find_record_target): New.
(require_record_target): New.
(cmd_record_start): Update.
(cmd_record_delete): Remove target-specific code.
Call target_delete_record.
(cmd_record_stop): Unpush any record target.
(set_record_insn_max_num): Move to record-full.c
(set_record_command): Add comment.
(show_record_command): Add comment.
(info_record_command): Update comment.
Remove target-specific code.
Call the record target's to_info_record.
(cmd_record_start): New.
(cmd_record_goto): Now extern.
Remove target-specific code.
Call target_goto_begin, target_goto_end, or target_goto.
(_initialize_record): Move record target ops initialization to
record-full.c.
Change "record" command help text.
Move "record restore", "record set", and "record show" commands to
record-full.c.
* Makefile.in (SFILES): Add record-full.c.
(HFILES_NO_SRCDIR): Add record-full.h.
(COMMON_OBS): Add record-full.o.
* amd64-linux-tdep.c: Include record-full.h instead of record.h.
* arm-tdep.c: Include record-full.h.
* i386-linux-tdep.c: Include record-full.h instead of record.h.
* i386-tdep.c: Include record-full.h.
* infrun.c: Include record-full.h.
* linux-record.c: Include record-full.h.
* moxie-tdep.c: Include record-full.h.
* record-full.c: Include record-full.h.
Change module comment.
(set_record_full_cmdlist): New.
(show_record_full_cmdlist): New.
(record_full_cmdlist): New.
(record_goto_insn): New declaration.
(record_save): New declaration.
(record_check_insn_num): Change query string.
(record_info): New.
(record_delete): New.
(record_is_replaying): New.
(record_goto_entry): New.
(record_goto_begin): New.
(record_goto_end): New.
(record_goto): New.
(init_record_ops): Update.
(init_record_core_ops): Update.
(cmd_record_save): Rename to record_save. Remove target and arg checks.
(cmd_record_start): New.
(set_record_insn_max_num): Moved from record.c
(set_record_full_command): New.
(show_record_full_command): New.
(_initialize_record_full): New.
2013-03-11 09:42:55 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_goto_record_begin (void)
|
|
|
|
|
{
|
2013-12-19 04:24:04 +01:00
|
|
|
|
current_target.to_goto_record_begin (¤t_target);
|
Split record.h into record.h and record-full.h.
Split record.c into record.c and record-full.c.
The split leaves the command part in record.c and moves the target part into
record-full.c.
gdb/
* record.h: Split into this and ...
* record-full.h: ... this.
* record.c: Split into this and ...
* record-full.c: ... this.
* target.h (target_ops): Add new fields to_info_record,
to_save_record, to_delete_record, to_record_is_replaying,
to_goto_record_begin, to_goto_record_end, to_goto_record.
(target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* target.c (target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* record.h: Declare struct cmd_list_element.
(record_cmdlist): New declaration.
(set_record_cmdlist): New declaration.
(show_record_cmdlist): New declaration.
(info_record_cmdlist): New declaration.
(cmd_record_goto): New declaration.
* record.c: Remove unnecessary includes.
Include inferior.h.
(cmd_record_goto): Remove declaration.
(record_cmdlist): Now extern. Initialize.
(set_record_cmdlist): Now extern. Initialize.
(show_record_cmdlist): Now extern. Initialize.
(info_record_cmdlist): Now extern. Initialize.
(find_record_target): New.
(require_record_target): New.
(cmd_record_start): Update.
(cmd_record_delete): Remove target-specific code.
Call target_delete_record.
(cmd_record_stop): Unpush any record target.
(set_record_insn_max_num): Move to record-full.c
(set_record_command): Add comment.
(show_record_command): Add comment.
(info_record_command): Update comment.
Remove target-specific code.
Call the record target's to_info_record.
(cmd_record_start): New.
(cmd_record_goto): Now extern.
Remove target-specific code.
Call target_goto_begin, target_goto_end, or target_goto.
(_initialize_record): Move record target ops initialization to
record-full.c.
Change "record" command help text.
Move "record restore", "record set", and "record show" commands to
record-full.c.
* Makefile.in (SFILES): Add record-full.c.
(HFILES_NO_SRCDIR): Add record-full.h.
(COMMON_OBS): Add record-full.o.
* amd64-linux-tdep.c: Include record-full.h instead of record.h.
* arm-tdep.c: Include record-full.h.
* i386-linux-tdep.c: Include record-full.h instead of record.h.
* i386-tdep.c: Include record-full.h.
* infrun.c: Include record-full.h.
* linux-record.c: Include record-full.h.
* moxie-tdep.c: Include record-full.h.
* record-full.c: Include record-full.h.
Change module comment.
(set_record_full_cmdlist): New.
(show_record_full_cmdlist): New.
(record_full_cmdlist): New.
(record_goto_insn): New declaration.
(record_save): New declaration.
(record_check_insn_num): Change query string.
(record_info): New.
(record_delete): New.
(record_is_replaying): New.
(record_goto_entry): New.
(record_goto_begin): New.
(record_goto_end): New.
(record_goto): New.
(init_record_ops): Update.
(init_record_core_ops): Update.
(cmd_record_save): Rename to record_save. Remove target and arg checks.
(cmd_record_start): New.
(set_record_insn_max_num): Moved from record.c
(set_record_full_command): New.
(show_record_full_command): New.
(_initialize_record_full): New.
2013-03-11 09:42:55 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_goto_record_end (void)
|
|
|
|
|
{
|
2013-12-19 04:23:23 +01:00
|
|
|
|
current_target.to_goto_record_end (¤t_target);
|
Split record.h into record.h and record-full.h.
Split record.c into record.c and record-full.c.
The split leaves the command part in record.c and moves the target part into
record-full.c.
gdb/
* record.h: Split into this and ...
* record-full.h: ... this.
* record.c: Split into this and ...
* record-full.c: ... this.
* target.h (target_ops): Add new fields to_info_record,
to_save_record, to_delete_record, to_record_is_replaying,
to_goto_record_begin, to_goto_record_end, to_goto_record.
(target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* target.c (target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* record.h: Declare struct cmd_list_element.
(record_cmdlist): New declaration.
(set_record_cmdlist): New declaration.
(show_record_cmdlist): New declaration.
(info_record_cmdlist): New declaration.
(cmd_record_goto): New declaration.
* record.c: Remove unnecessary includes.
Include inferior.h.
(cmd_record_goto): Remove declaration.
(record_cmdlist): Now extern. Initialize.
(set_record_cmdlist): Now extern. Initialize.
(show_record_cmdlist): Now extern. Initialize.
(info_record_cmdlist): Now extern. Initialize.
(find_record_target): New.
(require_record_target): New.
(cmd_record_start): Update.
(cmd_record_delete): Remove target-specific code.
Call target_delete_record.
(cmd_record_stop): Unpush any record target.
(set_record_insn_max_num): Move to record-full.c
(set_record_command): Add comment.
(show_record_command): Add comment.
(info_record_command): Update comment.
Remove target-specific code.
Call the record target's to_info_record.
(cmd_record_start): New.
(cmd_record_goto): Now extern.
Remove target-specific code.
Call target_goto_begin, target_goto_end, or target_goto.
(_initialize_record): Move record target ops initialization to
record-full.c.
Change "record" command help text.
Move "record restore", "record set", and "record show" commands to
record-full.c.
* Makefile.in (SFILES): Add record-full.c.
(HFILES_NO_SRCDIR): Add record-full.h.
(COMMON_OBS): Add record-full.o.
* amd64-linux-tdep.c: Include record-full.h instead of record.h.
* arm-tdep.c: Include record-full.h.
* i386-linux-tdep.c: Include record-full.h instead of record.h.
* i386-tdep.c: Include record-full.h.
* infrun.c: Include record-full.h.
* linux-record.c: Include record-full.h.
* moxie-tdep.c: Include record-full.h.
* record-full.c: Include record-full.h.
Change module comment.
(set_record_full_cmdlist): New.
(show_record_full_cmdlist): New.
(record_full_cmdlist): New.
(record_goto_insn): New declaration.
(record_save): New declaration.
(record_check_insn_num): Change query string.
(record_info): New.
(record_delete): New.
(record_is_replaying): New.
(record_goto_entry): New.
(record_goto_begin): New.
(record_goto_end): New.
(record_goto): New.
(init_record_ops): Update.
(init_record_core_ops): Update.
(cmd_record_save): Rename to record_save. Remove target and arg checks.
(cmd_record_start): New.
(set_record_insn_max_num): Moved from record.c
(set_record_full_command): New.
(show_record_full_command): New.
(_initialize_record_full): New.
2013-03-11 09:42:55 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_goto_record (ULONGEST insn)
|
|
|
|
|
{
|
2013-12-19 04:22:36 +01:00
|
|
|
|
current_target.to_goto_record (¤t_target, insn);
|
Split record.h into record.h and record-full.h.
Split record.c into record.c and record-full.c.
The split leaves the command part in record.c and moves the target part into
record-full.c.
gdb/
* record.h: Split into this and ...
* record-full.h: ... this.
* record.c: Split into this and ...
* record-full.c: ... this.
* target.h (target_ops): Add new fields to_info_record,
to_save_record, to_delete_record, to_record_is_replaying,
to_goto_record_begin, to_goto_record_end, to_goto_record.
(target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* target.c (target_info_record): New.
(target_save_record): New.
(target_supports_delete_record): New.
(target_delete_record): New.
(target_record_is_replaying): New.
(target_goto_record_begin): New.
(target_goto_record_end): New.
(target_goto_record): New.
* record.h: Declare struct cmd_list_element.
(record_cmdlist): New declaration.
(set_record_cmdlist): New declaration.
(show_record_cmdlist): New declaration.
(info_record_cmdlist): New declaration.
(cmd_record_goto): New declaration.
* record.c: Remove unnecessary includes.
Include inferior.h.
(cmd_record_goto): Remove declaration.
(record_cmdlist): Now extern. Initialize.
(set_record_cmdlist): Now extern. Initialize.
(show_record_cmdlist): Now extern. Initialize.
(info_record_cmdlist): Now extern. Initialize.
(find_record_target): New.
(require_record_target): New.
(cmd_record_start): Update.
(cmd_record_delete): Remove target-specific code.
Call target_delete_record.
(cmd_record_stop): Unpush any record target.
(set_record_insn_max_num): Move to record-full.c
(set_record_command): Add comment.
(show_record_command): Add comment.
(info_record_command): Update comment.
Remove target-specific code.
Call the record target's to_info_record.
(cmd_record_start): New.
(cmd_record_goto): Now extern.
Remove target-specific code.
Call target_goto_begin, target_goto_end, or target_goto.
(_initialize_record): Move record target ops initialization to
record-full.c.
Change "record" command help text.
Move "record restore", "record set", and "record show" commands to
record-full.c.
* Makefile.in (SFILES): Add record-full.c.
(HFILES_NO_SRCDIR): Add record-full.h.
(COMMON_OBS): Add record-full.o.
* amd64-linux-tdep.c: Include record-full.h instead of record.h.
* arm-tdep.c: Include record-full.h.
* i386-linux-tdep.c: Include record-full.h instead of record.h.
* i386-tdep.c: Include record-full.h.
* infrun.c: Include record-full.h.
* linux-record.c: Include record-full.h.
* moxie-tdep.c: Include record-full.h.
* record-full.c: Include record-full.h.
Change module comment.
(set_record_full_cmdlist): New.
(show_record_full_cmdlist): New.
(record_full_cmdlist): New.
(record_goto_insn): New declaration.
(record_save): New declaration.
(record_check_insn_num): Change query string.
(record_info): New.
(record_delete): New.
(record_is_replaying): New.
(record_goto_entry): New.
(record_goto_begin): New.
(record_goto_end): New.
(record_goto): New.
(init_record_ops): Update.
(init_record_core_ops): Update.
(cmd_record_save): Rename to record_save. Remove target and arg checks.
(cmd_record_start): New.
(set_record_insn_max_num): Moved from record.c
(set_record_full_command): New.
(show_record_full_command): New.
(_initialize_record_full): New.
2013-03-11 09:42:55 +01:00
|
|
|
|
}
|
|
|
|
|
|
2013-03-11 09:48:38 +01:00
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_insn_history (int size, int flags)
|
|
|
|
|
{
|
2013-12-19 04:18:49 +01:00
|
|
|
|
current_target.to_insn_history (¤t_target, size, flags);
|
2013-03-11 09:48:38 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_insn_history_from (ULONGEST from, int size, int flags)
|
|
|
|
|
{
|
2013-12-19 04:16:56 +01:00
|
|
|
|
current_target.to_insn_history_from (¤t_target, from, size, flags);
|
2013-03-11 09:48:38 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_insn_history_range (ULONGEST begin, ULONGEST end, int flags)
|
|
|
|
|
{
|
2013-12-19 04:15:44 +01:00
|
|
|
|
current_target.to_insn_history_range (¤t_target, begin, end, flags);
|
2013-03-11 09:48:38 +01:00
|
|
|
|
}
|
|
|
|
|
|
2013-03-11 09:50:05 +01:00
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_call_history (int size, int flags)
|
|
|
|
|
{
|
2013-12-19 04:13:40 +01:00
|
|
|
|
current_target.to_call_history (¤t_target, size, flags);
|
2013-03-11 09:50:05 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_call_history_from (ULONGEST begin, int size, int flags)
|
|
|
|
|
{
|
2013-12-19 04:11:49 +01:00
|
|
|
|
current_target.to_call_history_from (¤t_target, begin, size, flags);
|
2013-03-11 09:50:05 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_call_history_range (ULONGEST begin, ULONGEST end, int flags)
|
|
|
|
|
{
|
2013-12-19 04:10:20 +01:00
|
|
|
|
current_target.to_call_history_range (¤t_target, begin, end, flags);
|
2013-03-11 09:50:05 +01:00
|
|
|
|
}
|
|
|
|
|
|
2013-03-18 16:43:05 +01:00
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
const struct frame_unwind *
|
|
|
|
|
target_get_unwinder (void)
|
|
|
|
|
{
|
2014-01-16 21:00:07 +01:00
|
|
|
|
return current_target.to_get_unwinder (¤t_target);
|
2013-03-18 16:43:05 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
const struct frame_unwind *
|
|
|
|
|
target_get_tailcall_unwinder (void)
|
|
|
|
|
{
|
2014-01-16 21:00:07 +01:00
|
|
|
|
return current_target.to_get_tailcall_unwinder (¤t_target);
|
2013-03-18 16:43:05 +01:00
|
|
|
|
}
|
|
|
|
|
|
2014-05-20 15:22:53 +02:00
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_prepare_to_generate_core (void)
|
|
|
|
|
{
|
|
|
|
|
current_target.to_prepare_to_generate_core (¤t_target);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See target.h. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
target_done_generating_core (void)
|
|
|
|
|
{
|
|
|
|
|
current_target.to_done_generating_core (¤t_target);
|
|
|
|
|
}
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
static void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
setup_target_debug (void)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
memcpy (&debug_target, ¤t_target, sizeof debug_target);
|
|
|
|
|
|
auto-generate most target debug methods
The target debug methods are inconsistently maintained. Most to_*
methods have some kind of targetdebug awareness, but not all of them
do. The ones that do vary in the quantity and quality of output they
generate.
This patch changes most of the target debug methods to be
automatically generated. All the arguments are printed, and separate
lines are printed for entering and existing the outermost call to the
target stack.
For example now you'd see:
-> multi-thread->to_terminal_ours (...)
-> multi-thread->to_is_async_p (...)
<- multi-thread->to_is_async_p (0x1ebb580) = 1
<- multi-thread->to_terminal_ours (0x1ebb580)
-> multi-thread->to_thread_address_space (...)
<- multi-thread->to_thread_address_space (0x1ebb580, 26802) = 1
In this case you can see nested calls. The "multi-thread" on the left
hand side is the topmost target's shortname.
There are some oddities with this patch. I'm on the fence about it
all, I really just wrote it on a whim.
It's not simple to convert every possible method, since a few don't
participate in target delegation.
Printing is done by type, so I introduced some new
debug-printing-specific typedefs to handle cases where it is nicer to
do something else.
On the plus side, this lays the groundwork for making targetdebug
affect every layer of the target stack. The idea would be to wrap
each target_ops in the stack with its own debug_target, and then you
could see calls propagate down the stack and back up; I suppose with
indentation to make it prettier. (That said there are some gotchas
lurking in this idea due to target stack introspection.)
Regtested on x86-64 Fedora 20.
2014-07-24 Tom Tromey <tromey@redhat.com>
* make-target-delegates (munge_type, write_debugmethod): New
functions.
(debug_names): New global.
($TARGET_DEBUG_PRINTER): New global.
(write_function_header): Strip TARGET_DEBUG_PRINTER from the type
name.
Write debug methods. Generate init_debug_target.
* target-debug.h: New file.
* target-delegates.c: Rebuild.
* target.c: Include target-debug.h.
(debug_target): Hoist definition.
(target_kill, target_get_section_table, target_memory_map)
(target_flash_erase, target_flash_done, target_detach)
(target_disconnect, target_wait, target_resume)
(target_pass_signals, target_program_signals, target_follow_fork)
(target_mourn_inferior, target_search_memory)
(target_thread_address_space, target_close)
(target_find_new_threads, target_core_of_thread)
(target_verify_memory, target_insert_mask_watchpoint)
(target_remove_mask_watchpoint): Remove targetdebug code.
(debug_to_post_attach, debug_to_prepare_to_store)
(debug_to_files_info, debug_to_insert_breakpoint)
(debug_to_remove_breakpoint, debug_to_can_use_hw_breakpoint)
(debug_to_region_ok_for_hw_watchpoint)
(debug_to_can_accel_watchpoint_condition)
(debug_to_stopped_by_watchpoint, debug_to_stopped_data_address)
(debug_to_watchpoint_addr_within_range)
(debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint)
(debug_to_insert_watchpoint, debug_to_remove_watchpoint)
(debug_to_terminal_init, debug_to_terminal_inferior)
(debug_to_terminal_ours_for_output, debug_to_terminal_ours)
(debug_to_terminal_save_ours, debug_to_terminal_info)
(debug_to_load, debug_to_post_startup_inferior)
(debug_to_insert_fork_catchpoint)
(debug_to_remove_fork_catchpoint)
(debug_to_insert_vfork_catchpoint)
(debug_to_remove_vfork_catchpoint)
(debug_to_insert_exec_catchpoint)
(debug_to_remove_exec_catchpoint, debug_to_has_exited)
(debug_to_can_run, debug_to_thread_architecture, debug_to_stop)
(debug_to_rcmd, debug_to_pid_to_exec_file): Remove.
(setup_target_debug): Call init_debug_target.
* target.h (TARGET_DEBUG_PRINTER): New macro.
(struct target_ops) <to_resume, to_wait, to_pass_signals,
to_program_signals>: Use TARGET_DEBUG_PRINTER.
2014-06-16 05:28:57 +02:00
|
|
|
|
init_debug_target (¤t_target);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
1999-07-07 22:19:36 +02:00
|
|
|
|
|
|
|
|
|
static char targ_desc[] =
|
2011-01-05 23:22:53 +01:00
|
|
|
|
"Names of targets and files being debugged.\nShows the entire \
|
|
|
|
|
stack of targets currently in use (including the exec-file,\n\
|
1999-04-16 03:35:26 +02:00
|
|
|
|
core-file, and process, if any), as well as the symbol file name.";
|
|
|
|
|
|
2013-12-18 17:35:21 +01:00
|
|
|
|
static void
|
2014-06-06 21:19:53 +02:00
|
|
|
|
default_rcmd (struct target_ops *self, const char *command,
|
|
|
|
|
struct ui_file *output)
|
2013-12-18 17:35:21 +01:00
|
|
|
|
{
|
|
|
|
|
error (_("\"monitor\" command not supported by this target."));
|
|
|
|
|
}
|
|
|
|
|
|
1999-08-09 23:36:23 +02:00
|
|
|
|
static void
|
|
|
|
|
do_monitor_command (char *cmd,
|
|
|
|
|
int from_tty)
|
|
|
|
|
{
|
|
|
|
|
target_rcmd (cmd, gdb_stdtarg);
|
|
|
|
|
}
|
|
|
|
|
|
2007-01-29 17:36:01 +01:00
|
|
|
|
/* Print the name of each layers of our target stack. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
maintenance_print_target_stack (char *cmd, int from_tty)
|
|
|
|
|
{
|
|
|
|
|
struct target_ops *t;
|
|
|
|
|
|
|
|
|
|
printf_filtered (_("The current target stack is:\n"));
|
|
|
|
|
|
|
|
|
|
for (t = target_stack; t != NULL; t = t->beneath)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
enable target async by default; separate MI and target notions of async
This finally makes background execution commands possible by default.
However, in order to do that, there's one last thing we need to do --
we need to separate the MI and target notions of "async". Unlike the
CLI, where the user explicitly requests foreground vs background
execution in the execution command itself (c vs c&), MI chose to treat
"set target-async" specially -- setting it changes the default
behavior of execution commands.
So, we can't simply "set target-async" default to on, as that would
affect MI frontends. Instead we have to make the setting MI-specific,
and teach MI about sync commands on top of an async target.
Because the "target" word in "set target-async" ends up as a potential
source of confusion, the patch adds a "set mi-async" option, and makes
"set target-async" a deprecated alias.
Rather than make the targets always async, this patch introduces a new
"maint set target-async" option so that the GDB developer can control
whether the target is async. This makes it simpler to debug issues
arising only in the synchronous mode; important because sync mode
seems unlikely to go away.
Unlike in previous revisions, "set target-async" does not affect this
new maint parameter. The rationale for this is that then one can
easily run the test suite in the "maint set target-async off" mode and
have tests that enable mi-async fail just like they fail on
non-async-capable targets. This emulation is exactly the point of the
maint option.
I had asked Tom in a previous iteration to split the actual change of
the target async default to a separate patch, but it turns out that
that is quite awkward in this version of the patch, because with MI
async and target async decoupled (unlike in previous versions), if we
don't flip the default at the same time, then just "set target-async
on" alone never actually manages to do anything. It's best to not
have that transitory state in the tree.
Given "set target-async on" now only has effect for MI, the patch goes
through the testsuite removing it from non-MI tests. MI tests are
adjusted to use the new and less confusing "mi-async" spelling.
2014-05-29 Pedro Alves <palves@redhat.com>
Tom Tromey <tromey@redhat.com>
* NEWS: Mention "maint set target-async", "set mi-async", and that
background execution commands are now always available.
* target.h (target_async_permitted): Update comment.
* target.c (target_async_permitted, target_async_permitted_1):
Default to 1.
(set_target_async_command): Rename to ...
(maint_set_target_async_command): ... this.
(show_target_async_command): Rename to ...
(maint_show_target_async_command): ... this.
(_initialize_target): Adjust.
* infcmd.c (prepare_execution_command): Make extern.
* inferior.h (prepare_execution_command): Declare.
* infrun.c (set_observer_mode): Leave target async alone.
* mi/mi-interp.c (mi_interpreter_init): Install
mi_on_sync_execution_done as sync_execution_done observer.
(mi_on_sync_execution_done): New function.
(mi_execute_command_input_handler): Don't print the prompt if we
just started a synchronous command with an async target.
(mi_on_resume): Check sync_execution before printing prompt.
* mi/mi-main.h (mi_async_p): Declare.
* mi/mi-main.c: Include gdbcmd.h.
(mi_async_p): New function.
(mi_async, mi_async_1): New globals.
(set_mi_async_command, show_mi_async_command, mi_async): New
functions.
(exec_continue): Call prepare_execution_command.
(run_one_inferior, mi_cmd_exec_run, mi_cmd_list_target_features)
(mi_execute_async_cli_command): Use mi_async_p.
(_initialize_mi_main): Install "set mi-async". Make
"target-async" a deprecated alias.
2014-05-29 Pedro Alves <palves@redhat.com>
Tom Tromey <tromey@redhat.com>
* gdb.texinfo (Non-Stop Mode): Remove "set target-async 1"
from example.
(Asynchronous and non-stop modes): Document '-gdb-set mi-async'.
Mention that target-async is now deprecated.
(Maintenance Commands): Document maint set/show target-async.
2014-05-29 Pedro Alves <palves@redhat.com>
Tom Tromey <tromey@redhat.com>
* gdb.base/async-shell.exp: Don't enable target-async.
* gdb.base/async.exp
* gdb.base/corefile.exp (corefile_test_attach): Remove 'async'
parameter. Adjust.
(top level): Don't test with "target-async".
* gdb.base/dprintf-non-stop.exp: Don't enable target-async.
* gdb.base/gdb-sigterm.exp: Don't test with "target-async".
* gdb.base/inferior-died.exp: Don't enable target-async.
* gdb.base/interrupt-noterm.exp: Likewise.
* gdb.mi/mi-async.exp: Use "mi-async" instead of "target-async".
* gdb.mi/mi-nonstop-exit.exp: Likewise.
* gdb.mi/mi-nonstop.exp: Likewise.
* gdb.mi/mi-ns-stale-regcache.exp: Likewise.
* gdb.mi/mi-nsintrall.exp: Likewise.
* gdb.mi/mi-nsmoribund.exp: Likewise.
* gdb.mi/mi-nsthrexec.exp: Likewise.
* gdb.mi/mi-watch-nonstop.exp: Likewise.
* gdb.multi/watchpoint-multi.exp: Adjust comment.
* gdb.python/py-evsignal.exp: Don't enable target-async.
* gdb.python/py-evthreads.exp: Likewise.
* gdb.python/py-prompt.exp: Likewise.
* gdb.reverse/break-precsave.exp: Don't test with "target-async".
* gdb.server/solib-list.exp: Don't enable target-async.
* gdb.threads/thread-specific-bp.exp: Likewise.
* lib/mi-support.exp: Adjust to use mi-async.
2014-05-29 20:58:57 +02:00
|
|
|
|
/* Controls if targets can report that they can/are async. This is
|
|
|
|
|
just for maintainers to use when debugging gdb. */
|
|
|
|
|
int target_async_permitted = 1;
|
2008-08-19 15:05:02 +02:00
|
|
|
|
|
|
|
|
|
/* The set command writes to this variable. If the inferior is
|
2013-07-29 23:27:46 +02:00
|
|
|
|
executing, target_async_permitted is *not* updated. */
|
enable target async by default; separate MI and target notions of async
This finally makes background execution commands possible by default.
However, in order to do that, there's one last thing we need to do --
we need to separate the MI and target notions of "async". Unlike the
CLI, where the user explicitly requests foreground vs background
execution in the execution command itself (c vs c&), MI chose to treat
"set target-async" specially -- setting it changes the default
behavior of execution commands.
So, we can't simply "set target-async" default to on, as that would
affect MI frontends. Instead we have to make the setting MI-specific,
and teach MI about sync commands on top of an async target.
Because the "target" word in "set target-async" ends up as a potential
source of confusion, the patch adds a "set mi-async" option, and makes
"set target-async" a deprecated alias.
Rather than make the targets always async, this patch introduces a new
"maint set target-async" option so that the GDB developer can control
whether the target is async. This makes it simpler to debug issues
arising only in the synchronous mode; important because sync mode
seems unlikely to go away.
Unlike in previous revisions, "set target-async" does not affect this
new maint parameter. The rationale for this is that then one can
easily run the test suite in the "maint set target-async off" mode and
have tests that enable mi-async fail just like they fail on
non-async-capable targets. This emulation is exactly the point of the
maint option.
I had asked Tom in a previous iteration to split the actual change of
the target async default to a separate patch, but it turns out that
that is quite awkward in this version of the patch, because with MI
async and target async decoupled (unlike in previous versions), if we
don't flip the default at the same time, then just "set target-async
on" alone never actually manages to do anything. It's best to not
have that transitory state in the tree.
Given "set target-async on" now only has effect for MI, the patch goes
through the testsuite removing it from non-MI tests. MI tests are
adjusted to use the new and less confusing "mi-async" spelling.
2014-05-29 Pedro Alves <palves@redhat.com>
Tom Tromey <tromey@redhat.com>
* NEWS: Mention "maint set target-async", "set mi-async", and that
background execution commands are now always available.
* target.h (target_async_permitted): Update comment.
* target.c (target_async_permitted, target_async_permitted_1):
Default to 1.
(set_target_async_command): Rename to ...
(maint_set_target_async_command): ... this.
(show_target_async_command): Rename to ...
(maint_show_target_async_command): ... this.
(_initialize_target): Adjust.
* infcmd.c (prepare_execution_command): Make extern.
* inferior.h (prepare_execution_command): Declare.
* infrun.c (set_observer_mode): Leave target async alone.
* mi/mi-interp.c (mi_interpreter_init): Install
mi_on_sync_execution_done as sync_execution_done observer.
(mi_on_sync_execution_done): New function.
(mi_execute_command_input_handler): Don't print the prompt if we
just started a synchronous command with an async target.
(mi_on_resume): Check sync_execution before printing prompt.
* mi/mi-main.h (mi_async_p): Declare.
* mi/mi-main.c: Include gdbcmd.h.
(mi_async_p): New function.
(mi_async, mi_async_1): New globals.
(set_mi_async_command, show_mi_async_command, mi_async): New
functions.
(exec_continue): Call prepare_execution_command.
(run_one_inferior, mi_cmd_exec_run, mi_cmd_list_target_features)
(mi_execute_async_cli_command): Use mi_async_p.
(_initialize_mi_main): Install "set mi-async". Make
"target-async" a deprecated alias.
2014-05-29 Pedro Alves <palves@redhat.com>
Tom Tromey <tromey@redhat.com>
* gdb.texinfo (Non-Stop Mode): Remove "set target-async 1"
from example.
(Asynchronous and non-stop modes): Document '-gdb-set mi-async'.
Mention that target-async is now deprecated.
(Maintenance Commands): Document maint set/show target-async.
2014-05-29 Pedro Alves <palves@redhat.com>
Tom Tromey <tromey@redhat.com>
* gdb.base/async-shell.exp: Don't enable target-async.
* gdb.base/async.exp
* gdb.base/corefile.exp (corefile_test_attach): Remove 'async'
parameter. Adjust.
(top level): Don't test with "target-async".
* gdb.base/dprintf-non-stop.exp: Don't enable target-async.
* gdb.base/gdb-sigterm.exp: Don't test with "target-async".
* gdb.base/inferior-died.exp: Don't enable target-async.
* gdb.base/interrupt-noterm.exp: Likewise.
* gdb.mi/mi-async.exp: Use "mi-async" instead of "target-async".
* gdb.mi/mi-nonstop-exit.exp: Likewise.
* gdb.mi/mi-nonstop.exp: Likewise.
* gdb.mi/mi-ns-stale-regcache.exp: Likewise.
* gdb.mi/mi-nsintrall.exp: Likewise.
* gdb.mi/mi-nsmoribund.exp: Likewise.
* gdb.mi/mi-nsthrexec.exp: Likewise.
* gdb.mi/mi-watch-nonstop.exp: Likewise.
* gdb.multi/watchpoint-multi.exp: Adjust comment.
* gdb.python/py-evsignal.exp: Don't enable target-async.
* gdb.python/py-evthreads.exp: Likewise.
* gdb.python/py-prompt.exp: Likewise.
* gdb.reverse/break-precsave.exp: Don't test with "target-async".
* gdb.server/solib-list.exp: Don't enable target-async.
* gdb.threads/thread-specific-bp.exp: Likewise.
* lib/mi-support.exp: Adjust to use mi-async.
2014-05-29 20:58:57 +02:00
|
|
|
|
static int target_async_permitted_1 = 1;
|
2008-08-19 15:05:02 +02:00
|
|
|
|
|
|
|
|
|
static void
|
enable target async by default; separate MI and target notions of async
This finally makes background execution commands possible by default.
However, in order to do that, there's one last thing we need to do --
we need to separate the MI and target notions of "async". Unlike the
CLI, where the user explicitly requests foreground vs background
execution in the execution command itself (c vs c&), MI chose to treat
"set target-async" specially -- setting it changes the default
behavior of execution commands.
So, we can't simply "set target-async" default to on, as that would
affect MI frontends. Instead we have to make the setting MI-specific,
and teach MI about sync commands on top of an async target.
Because the "target" word in "set target-async" ends up as a potential
source of confusion, the patch adds a "set mi-async" option, and makes
"set target-async" a deprecated alias.
Rather than make the targets always async, this patch introduces a new
"maint set target-async" option so that the GDB developer can control
whether the target is async. This makes it simpler to debug issues
arising only in the synchronous mode; important because sync mode
seems unlikely to go away.
Unlike in previous revisions, "set target-async" does not affect this
new maint parameter. The rationale for this is that then one can
easily run the test suite in the "maint set target-async off" mode and
have tests that enable mi-async fail just like they fail on
non-async-capable targets. This emulation is exactly the point of the
maint option.
I had asked Tom in a previous iteration to split the actual change of
the target async default to a separate patch, but it turns out that
that is quite awkward in this version of the patch, because with MI
async and target async decoupled (unlike in previous versions), if we
don't flip the default at the same time, then just "set target-async
on" alone never actually manages to do anything. It's best to not
have that transitory state in the tree.
Given "set target-async on" now only has effect for MI, the patch goes
through the testsuite removing it from non-MI tests. MI tests are
adjusted to use the new and less confusing "mi-async" spelling.
2014-05-29 Pedro Alves <palves@redhat.com>
Tom Tromey <tromey@redhat.com>
* NEWS: Mention "maint set target-async", "set mi-async", and that
background execution commands are now always available.
* target.h (target_async_permitted): Update comment.
* target.c (target_async_permitted, target_async_permitted_1):
Default to 1.
(set_target_async_command): Rename to ...
(maint_set_target_async_command): ... this.
(show_target_async_command): Rename to ...
(maint_show_target_async_command): ... this.
(_initialize_target): Adjust.
* infcmd.c (prepare_execution_command): Make extern.
* inferior.h (prepare_execution_command): Declare.
* infrun.c (set_observer_mode): Leave target async alone.
* mi/mi-interp.c (mi_interpreter_init): Install
mi_on_sync_execution_done as sync_execution_done observer.
(mi_on_sync_execution_done): New function.
(mi_execute_command_input_handler): Don't print the prompt if we
just started a synchronous command with an async target.
(mi_on_resume): Check sync_execution before printing prompt.
* mi/mi-main.h (mi_async_p): Declare.
* mi/mi-main.c: Include gdbcmd.h.
(mi_async_p): New function.
(mi_async, mi_async_1): New globals.
(set_mi_async_command, show_mi_async_command, mi_async): New
functions.
(exec_continue): Call prepare_execution_command.
(run_one_inferior, mi_cmd_exec_run, mi_cmd_list_target_features)
(mi_execute_async_cli_command): Use mi_async_p.
(_initialize_mi_main): Install "set mi-async". Make
"target-async" a deprecated alias.
2014-05-29 Pedro Alves <palves@redhat.com>
Tom Tromey <tromey@redhat.com>
* gdb.texinfo (Non-Stop Mode): Remove "set target-async 1"
from example.
(Asynchronous and non-stop modes): Document '-gdb-set mi-async'.
Mention that target-async is now deprecated.
(Maintenance Commands): Document maint set/show target-async.
2014-05-29 Pedro Alves <palves@redhat.com>
Tom Tromey <tromey@redhat.com>
* gdb.base/async-shell.exp: Don't enable target-async.
* gdb.base/async.exp
* gdb.base/corefile.exp (corefile_test_attach): Remove 'async'
parameter. Adjust.
(top level): Don't test with "target-async".
* gdb.base/dprintf-non-stop.exp: Don't enable target-async.
* gdb.base/gdb-sigterm.exp: Don't test with "target-async".
* gdb.base/inferior-died.exp: Don't enable target-async.
* gdb.base/interrupt-noterm.exp: Likewise.
* gdb.mi/mi-async.exp: Use "mi-async" instead of "target-async".
* gdb.mi/mi-nonstop-exit.exp: Likewise.
* gdb.mi/mi-nonstop.exp: Likewise.
* gdb.mi/mi-ns-stale-regcache.exp: Likewise.
* gdb.mi/mi-nsintrall.exp: Likewise.
* gdb.mi/mi-nsmoribund.exp: Likewise.
* gdb.mi/mi-nsthrexec.exp: Likewise.
* gdb.mi/mi-watch-nonstop.exp: Likewise.
* gdb.multi/watchpoint-multi.exp: Adjust comment.
* gdb.python/py-evsignal.exp: Don't enable target-async.
* gdb.python/py-evthreads.exp: Likewise.
* gdb.python/py-prompt.exp: Likewise.
* gdb.reverse/break-precsave.exp: Don't test with "target-async".
* gdb.server/solib-list.exp: Don't enable target-async.
* gdb.threads/thread-specific-bp.exp: Likewise.
* lib/mi-support.exp: Adjust to use mi-async.
2014-05-29 20:58:57 +02:00
|
|
|
|
maint_set_target_async_command (char *args, int from_tty,
|
|
|
|
|
struct cmd_list_element *c)
|
2008-08-19 15:05:02 +02:00
|
|
|
|
{
|
* target.h (struct target_ops): Make to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
methods instead of variables.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1)
(target_has_registers_1, target_has_execution_1): Declare
functions.
(target_has_all_memory): Rewrite to call target_has_all_memory_1.
(target_has_memory): Rewrite to call target_has_memory_1.
(target_has_stack): Rewrite to call target_has_all_stack_1.
(target_has_registers): Rewrite to call target_has_registers_1.
(target_has_execution): Rewrite to call target_has_execution_1.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Declare.
(target_mark_running, target_mark_exited): Delete declarations.
* target.c (default_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution): New.
(target_has_all_memory_1, target_has_memory_1, target_has_stack_1,
target_has_registers_1, target_has_execution_1): New.
(add_target): Default the to_has_all_memory, to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers and to_has_execution
callbacks to return 0.
(update_current_target): Do not inherit to_has_all_memory,
to_has_memory, to_has_stack, to_has_registers or to_has_execution.
(target_mark_running, target_mark_exited): Delete.
(memory_xfer_partial): Adjust.
(target_read_memory, target_write_memory, target_search_memory):
Dispatch to the the top-most target, not the flattened
current_target.
(target_info): Adjust.
(init_dummy_target): Install return_zero as callback for
to_has_all_memory, to_has_memory, to_has_stack, to_has_registers,
to_has_execution.
(set_maintenance_target_async_permitted): Use have_live_inferiors
instead of target_has_execution.
* target-memory.c (target_write_memory_blocks): Dispatch memory
writes to the the top-most target, not the flattened
current_target.
* breakpoint.c (insert_breakpoints): Don't check for
target_has_execution here.
(update_global_location_list): Check if there are live inferiors
to debug instead of target_has_execution.
* infcmd.c (kill_command, detach_command): Check if there are
inferiors instead of target_has_execution.
* inferior.h (have_live_inferiors): Declare.
* inferior.c (have_live_inferiors): New.
* infrun.c (normal_stop): Don't check for target_has_execution to
finish the thread states.
* thread.c (is_thread_state, is_stopped, is_exited, is_running)
(any_running, is_executing): Remove checks for
target_has_execution.
* top.c (kill_or_detach): Don't try to kill core inferiors.
(quit_target): Don't check for target_has_execution.
* corelow.c (core_has_memory, core_has_stack, core_has_registers):
New.
(init_core_ops): Install core_has_memory, core_has_stack and
core_has_registers.
* exec.c (exec_has_memory): New.
(init_exec_ops): Install exec_has_memory.
* remote.c (remote_add_inferior): Don't call target_mark_running.
(remote_start_remote): Don't call target_mark_exited or call
target_mark_running.
(remote_open_1): Use have_inferiors instead of
target_has_execution. Don't use target_mark_exited.
(init_remote_ops): Install deafult_child_has_all_memory,
default_child_has_memory, default_child_has_stack,
default_child_has_registers, default_child_has_execution.
* bsd-kvm.c (bsd_kvm_return_one): New.
(bsd_kvm_add_target): Register bsd_kvm_return_one as
to_has_memory, to_has_stack and to_has_registers callbacks.
* remote-m32r-sdi.c (m32r_return_one): New.
(init_m32r_ops): Register it.
* inf-child.c (inf_child_target): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* gnu-nat.c (init_gnu_ops): Likewise.
* go32-nat.c (init_go32_ops): Likewise.
* hpux-thread.c (init_hpux_thread_ops): Likewise.
* monitor.c (init_base_monitor_ops): Likewise.
* nto-procfs.c (init_procfs_ops): Likewise.
* remote-mips.c (_initialize_remote_mips): Likewise.
* windows-nat.c (init_windows_ops): Likewise.
* remote-sim.c (gdbsim_create_inferior): Don't use
target_mark_running or target_mark_exited.
(gdbsim_mourn_inferior): Don't call target_mark_exited.
(init_gdbsim_ops): Adjust to register
default_child_has_all_memory, default_child_has_memory,
default_child_has_stack, default_child_has_registers,
default_child_has_execution callbacks.
* linux-nat.c (linux_nat_xfer_partial): If reading memory, and
there's no inferior selected, defer to a lower stratum.
2009-06-07 18:46:48 +02:00
|
|
|
|
if (have_live_inferiors ())
|
2008-08-19 15:05:02 +02:00
|
|
|
|
{
|
|
|
|
|
target_async_permitted_1 = target_async_permitted;
|
|
|
|
|
error (_("Cannot change this setting while the inferior is running."));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
target_async_permitted = target_async_permitted_1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
enable target async by default; separate MI and target notions of async
This finally makes background execution commands possible by default.
However, in order to do that, there's one last thing we need to do --
we need to separate the MI and target notions of "async". Unlike the
CLI, where the user explicitly requests foreground vs background
execution in the execution command itself (c vs c&), MI chose to treat
"set target-async" specially -- setting it changes the default
behavior of execution commands.
So, we can't simply "set target-async" default to on, as that would
affect MI frontends. Instead we have to make the setting MI-specific,
and teach MI about sync commands on top of an async target.
Because the "target" word in "set target-async" ends up as a potential
source of confusion, the patch adds a "set mi-async" option, and makes
"set target-async" a deprecated alias.
Rather than make the targets always async, this patch introduces a new
"maint set target-async" option so that the GDB developer can control
whether the target is async. This makes it simpler to debug issues
arising only in the synchronous mode; important because sync mode
seems unlikely to go away.
Unlike in previous revisions, "set target-async" does not affect this
new maint parameter. The rationale for this is that then one can
easily run the test suite in the "maint set target-async off" mode and
have tests that enable mi-async fail just like they fail on
non-async-capable targets. This emulation is exactly the point of the
maint option.
I had asked Tom in a previous iteration to split the actual change of
the target async default to a separate patch, but it turns out that
that is quite awkward in this version of the patch, because with MI
async and target async decoupled (unlike in previous versions), if we
don't flip the default at the same time, then just "set target-async
on" alone never actually manages to do anything. It's best to not
have that transitory state in the tree.
Given "set target-async on" now only has effect for MI, the patch goes
through the testsuite removing it from non-MI tests. MI tests are
adjusted to use the new and less confusing "mi-async" spelling.
2014-05-29 Pedro Alves <palves@redhat.com>
Tom Tromey <tromey@redhat.com>
* NEWS: Mention "maint set target-async", "set mi-async", and that
background execution commands are now always available.
* target.h (target_async_permitted): Update comment.
* target.c (target_async_permitted, target_async_permitted_1):
Default to 1.
(set_target_async_command): Rename to ...
(maint_set_target_async_command): ... this.
(show_target_async_command): Rename to ...
(maint_show_target_async_command): ... this.
(_initialize_target): Adjust.
* infcmd.c (prepare_execution_command): Make extern.
* inferior.h (prepare_execution_command): Declare.
* infrun.c (set_observer_mode): Leave target async alone.
* mi/mi-interp.c (mi_interpreter_init): Install
mi_on_sync_execution_done as sync_execution_done observer.
(mi_on_sync_execution_done): New function.
(mi_execute_command_input_handler): Don't print the prompt if we
just started a synchronous command with an async target.
(mi_on_resume): Check sync_execution before printing prompt.
* mi/mi-main.h (mi_async_p): Declare.
* mi/mi-main.c: Include gdbcmd.h.
(mi_async_p): New function.
(mi_async, mi_async_1): New globals.
(set_mi_async_command, show_mi_async_command, mi_async): New
functions.
(exec_continue): Call prepare_execution_command.
(run_one_inferior, mi_cmd_exec_run, mi_cmd_list_target_features)
(mi_execute_async_cli_command): Use mi_async_p.
(_initialize_mi_main): Install "set mi-async". Make
"target-async" a deprecated alias.
2014-05-29 Pedro Alves <palves@redhat.com>
Tom Tromey <tromey@redhat.com>
* gdb.texinfo (Non-Stop Mode): Remove "set target-async 1"
from example.
(Asynchronous and non-stop modes): Document '-gdb-set mi-async'.
Mention that target-async is now deprecated.
(Maintenance Commands): Document maint set/show target-async.
2014-05-29 Pedro Alves <palves@redhat.com>
Tom Tromey <tromey@redhat.com>
* gdb.base/async-shell.exp: Don't enable target-async.
* gdb.base/async.exp
* gdb.base/corefile.exp (corefile_test_attach): Remove 'async'
parameter. Adjust.
(top level): Don't test with "target-async".
* gdb.base/dprintf-non-stop.exp: Don't enable target-async.
* gdb.base/gdb-sigterm.exp: Don't test with "target-async".
* gdb.base/inferior-died.exp: Don't enable target-async.
* gdb.base/interrupt-noterm.exp: Likewise.
* gdb.mi/mi-async.exp: Use "mi-async" instead of "target-async".
* gdb.mi/mi-nonstop-exit.exp: Likewise.
* gdb.mi/mi-nonstop.exp: Likewise.
* gdb.mi/mi-ns-stale-regcache.exp: Likewise.
* gdb.mi/mi-nsintrall.exp: Likewise.
* gdb.mi/mi-nsmoribund.exp: Likewise.
* gdb.mi/mi-nsthrexec.exp: Likewise.
* gdb.mi/mi-watch-nonstop.exp: Likewise.
* gdb.multi/watchpoint-multi.exp: Adjust comment.
* gdb.python/py-evsignal.exp: Don't enable target-async.
* gdb.python/py-evthreads.exp: Likewise.
* gdb.python/py-prompt.exp: Likewise.
* gdb.reverse/break-precsave.exp: Don't test with "target-async".
* gdb.server/solib-list.exp: Don't enable target-async.
* gdb.threads/thread-specific-bp.exp: Likewise.
* lib/mi-support.exp: Adjust to use mi-async.
2014-05-29 20:58:57 +02:00
|
|
|
|
maint_show_target_async_command (struct ui_file *file, int from_tty,
|
|
|
|
|
struct cmd_list_element *c,
|
|
|
|
|
const char *value)
|
2008-08-19 15:05:02 +02:00
|
|
|
|
{
|
2011-01-05 23:22:53 +01:00
|
|
|
|
fprintf_filtered (file,
|
|
|
|
|
_("Controlling the inferior in "
|
|
|
|
|
"asynchronous mode is %s.\n"), value);
|
2008-08-19 15:05:02 +02:00
|
|
|
|
}
|
|
|
|
|
|
2010-06-12 02:05:22 +02:00
|
|
|
|
/* Temporary copies of permission settings. */
|
|
|
|
|
|
|
|
|
|
static int may_write_registers_1 = 1;
|
|
|
|
|
static int may_write_memory_1 = 1;
|
|
|
|
|
static int may_insert_breakpoints_1 = 1;
|
|
|
|
|
static int may_insert_tracepoints_1 = 1;
|
|
|
|
|
static int may_insert_fast_tracepoints_1 = 1;
|
|
|
|
|
static int may_stop_1 = 1;
|
|
|
|
|
|
|
|
|
|
/* Make the user-set values match the real values again. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
update_target_permissions (void)
|
|
|
|
|
{
|
|
|
|
|
may_write_registers_1 = may_write_registers;
|
|
|
|
|
may_write_memory_1 = may_write_memory;
|
|
|
|
|
may_insert_breakpoints_1 = may_insert_breakpoints;
|
|
|
|
|
may_insert_tracepoints_1 = may_insert_tracepoints;
|
|
|
|
|
may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints;
|
|
|
|
|
may_stop_1 = may_stop;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* The one function handles (most of) the permission flags in the same
|
|
|
|
|
way. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
set_target_permissions (char *args, int from_tty,
|
|
|
|
|
struct cmd_list_element *c)
|
|
|
|
|
{
|
|
|
|
|
if (target_has_execution)
|
|
|
|
|
{
|
|
|
|
|
update_target_permissions ();
|
|
|
|
|
error (_("Cannot change this setting while the inferior is running."));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Make the real values match the user-changed values. */
|
|
|
|
|
may_write_registers = may_write_registers_1;
|
|
|
|
|
may_insert_breakpoints = may_insert_breakpoints_1;
|
|
|
|
|
may_insert_tracepoints = may_insert_tracepoints_1;
|
|
|
|
|
may_insert_fast_tracepoints = may_insert_fast_tracepoints_1;
|
|
|
|
|
may_stop = may_stop_1;
|
|
|
|
|
update_observer_mode ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Set memory write permission independently of observer mode. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
set_write_memory_permission (char *args, int from_tty,
|
|
|
|
|
struct cmd_list_element *c)
|
|
|
|
|
{
|
|
|
|
|
/* Make the real values match the user-changed values. */
|
|
|
|
|
may_write_memory = may_write_memory_1;
|
|
|
|
|
update_observer_mode ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
initialize_targets (void)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
init_dummy_target ();
|
|
|
|
|
push_target (&dummy_target);
|
|
|
|
|
|
|
|
|
|
add_info ("target", target_info, targ_desc);
|
|
|
|
|
add_info ("files", target_info, targ_desc);
|
|
|
|
|
|
2012-08-02 11:36:40 +02:00
|
|
|
|
add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\
|
2005-02-18 Andrew Cagney <cagney@gnu.org>
Use add_setshow_zinteger_cmd through out. Re-sync gdbarch.sh
and gdbarch.c.
* breakpoint.c, frame.c, gdb-events.sh, gdbarch.sh: Update.
* gdbtypes.c, infrun.c, linux-nat.c, maint.c, monitor.c: Update.
* pa64solib.c, parse.c, remote-mips.c, ser-go32.c: Update.
* serial.c, solib-frv.c, somsolib.c, target.c, top.c: Update.
* varobj.c, cli/cli-cmds.c: Update.
* gdbarch.c, gdb-events.c: Regenerate.
2005-02-18 19:58:56 +01:00
|
|
|
|
Set target debugging."), _("\
|
|
|
|
|
Show target debugging."), _("\
|
2004-03-09 17:16:52 +01:00
|
|
|
|
When non-zero, target debugging is enabled. Higher numbers are more\n\
|
2014-07-28 20:53:35 +02:00
|
|
|
|
verbose."),
|
|
|
|
|
set_targetdebug,
|
2012-08-02 11:36:40 +02:00
|
|
|
|
show_targetdebug,
|
|
|
|
|
&setdebuglist, &showdebuglist);
|
2002-01-31 03:31:06 +01:00
|
|
|
|
|
2006-08-16 20:31:03 +02:00
|
|
|
|
add_setshow_boolean_cmd ("trust-readonly-sections", class_support,
|
2005-02-14 Andrew Cagney <cagney@gnu.org>
Mark up add_setshow functions, replace "PRINT:" comment prefix
with "FIXME: i18n:".
* aix-thread.c, alpha-tdep.c, arm-tdep.c, breakpoint.c: Update.
* cris-tdep.c, dwarf2read.c, frame.c, hppa-tdep.c: Update.
* infcall.c, m32r-rom.c, maint.c, mips-tdep.c: Update.
* nto-tdep.c, observer.c, remote-rdi.c, remote.c: Update.
* target.c, cli/cli-logging.c: Update.
2005-02-14 17:18:43 +01:00
|
|
|
|
&trust_readonly, _("\
|
|
|
|
|
Set mode for reading from readonly sections."), _("\
|
|
|
|
|
Show mode for reading from readonly sections."), _("\
|
2002-01-31 03:31:06 +01:00
|
|
|
|
When this mode is on, memory reads from readonly sections (such as .text)\n\
|
|
|
|
|
will be read from the object file instead of from the target. This will\n\
|
2005-02-14 Andrew Cagney <cagney@gnu.org>
Mark up add_setshow functions, replace "PRINT:" comment prefix
with "FIXME: i18n:".
* aix-thread.c, alpha-tdep.c, arm-tdep.c, breakpoint.c: Update.
* cris-tdep.c, dwarf2read.c, frame.c, hppa-tdep.c: Update.
* infcall.c, m32r-rom.c, maint.c, mips-tdep.c: Update.
* nto-tdep.c, observer.c, remote-rdi.c, remote.c: Update.
* target.c, cli/cli-logging.c: Update.
2005-02-14 17:18:43 +01:00
|
|
|
|
result in significant performance improvement for remote targets."),
|
2005-02-17 Andrew Cagney <cagney@gnu.org>
* cli/cli-decode.c (add_setshow_cmd_full, add_setshow_enum_cmd)
(add_setshow_auto_boolean_cmd, add_setshow_boolean_cmd)
(add_setshow_filename_cmd, add_setshow_string_cmd)
(add_setshow_uinteger_cmd, add_setshow_zinteger_cmd): Delete
fprint_setshow parameter.
* command.h (fprint_setshow_ftype): Delete.
(add_setshow_cmd_full, add_setshow_enum_cmd)
(add_setshow_auto_boolean_cmd, add_setshow_boolean_cmd)
(add_setshow_filename_cmd, add_setshow_string_cmd)
(add_setshow_uinteger_cmd, add_setshow_zinteger_cmd): Delete
fprint_setshow parameter.
* aix-thread.c, alpha-tdep.c, arm-tdep.c, breakpoint.c: Update.
* complaints.c, cris-tdep.c, dwarf2read.c, frame.c: Update.
* hppa-tdep.c, infcall.c, m32r-rom.c, maint.c: Update.
* mips-tdep.c, nto-tdep.c, observer.c, remote-rdi.c: Update
* remote.c, target.c, cli/cli-logging.c: Update.
2005-02-17 14:49:56 +01:00
|
|
|
|
NULL,
|
2005-02-24 Andrew Cagney <cagney@gnu.org>
Add show_VARIABLE functions, update add_setshow call.
* varobj.c (_initialize_varobj, show_varobjdebug): Add and update.
* valprint.c (_initialize_valprint, show_print_max)
(show_stop_print_at_null, show_repeat_count_threshold)
(show_prettyprint_structs, show_unionprint)
(show_prettyprint_arrays, show_addressprint, show_input_radix)
(show_output_radix): Ditto.
* valops.c (_initialize_valops, show_overload_resolution): Ditto.
* utils.c (initialize_utils, show_chars_per_line)
(show_lines_per_page, show_demangle, show_pagination_enabled)
(show_sevenbit_strings, show_asm_demangle): Ditto
* tui/tui-win.c (_initialize_tui_win, show_tui_border_kind)
(show_tui_border_mode, show_tui_active_border_mode): Ditto.
* top.c (init_main, show_new_async_prompt)
(show_async_command_editing_p, show_write_history_p)
(show_history_size, show_history_filename, show_caution)
(show_annotation_level, init_main): Ditto.
* target.c (initialize_targets, show_targetdebug)
(show_trust_readonly): Ditto.
* symfile.c (_initialize_symfile, show_symbol_reloading)
(show_ext_args, show_download_write_size)
(show_debug_file_directory): Ditto.
* source.c (_initialize_source, show_lines_to_list): Ditto.
* solib.c (_initialize_solib, show_auto_solib_add)
(show_solib_search_path): Ditto.
* p-valprint.c (_initialize_pascal_valprint)
(show_pascal_static_field_print): Ditto.
* printcmd.c (_initialize_printcmd, show_max_symbolic_offset)
(show_print_symbol_filename): Add and update.
* parse.c (_initialize_parse, show_expressiondebug): Dito.
* observer.c (_initialize_observer, show_observer_debug): Dito.
* maint.c (_initialize_maint_cmds, show_watchdog)
(show_maintenance_profile_p): Dito.
* linux-nat.c (_initialize_linux_nat, show_debug_linux_nat): Dito.
* infrun.c (_initialize_infrun, show_debug_infrun)
(show_stop_on_solib_events, show_follow_fork_mode_string)
(show_scheduler_mode, show_step_stop_if_no_debug): Ditto.
* infcall.c (_initialize_infcall, show_coerce_float_to_double_p)
(show_unwind_on_signal_p): Ditto.
* gdbtypes.c (build_gdbtypes, show_opaque_type_resolution)
(_initialize_gdbtypes, show_overload_debug): Ditto.
* gdb-events.c, gdb-events.sh (_initialize_gdb_events)
(show_gdb_events_debug): Ditto.
* gdbarch.c, gdbarch.sh (show_gdbarch_debug)
(_initialize_gdbarch): Ditto.
* frame.c (_initialize_frame, show_backtrace_past_main)
(show_backtrace_past_entry, show_backtrace_limit)
(show_frame_debug): Ditto.
* exec.c (_initialize_exec, show_write_files): Ditto.
* dwarf2read.c (_initialize_dwarf2_read)
(show_dwarf2_max_cache_age): Ditto.
* demangle.c (_initialize_demangler)
(show_demangling_style_names): Ditto.
* dcache.c (_initialize_dcache, show_dcache_enabled_p): Ditto.
* cp-valprint.c (show_static_field_print)
(_initialize_cp_valprint, show_vtblprint, show_objectprint): Ditto.
* corefile.c (_initialize_core, show_gnutarget_string): Ditto.
* cli/cli-logging.c (_initialize_cli_logging)
(show_logging_overwrite, show_logging_redirect)
(show_logging_filename): Ditto.
* cli/cli-cmds.c (show_info_verbose, show_history_expansion_p)
(init_cli_cmds, show_baud_rate, show_remote_debug)
(show_remote_timeout, show_max_user_call_depth): Ditto.
* charset.c (show_host_charset_name, show_target_charset_name)
(initialize_charset): Ditto.
* breakpoint.c (show_can_use_hw_watchpoints)
(show_pending_break_support, _initialize_breakpoint): Ditto.
2005-02-24 14:51:36 +01:00
|
|
|
|
show_trust_readonly,
|
2002-06-15 23:07:59 +02:00
|
|
|
|
&setlist, &showlist);
|
1999-08-09 23:36:23 +02:00
|
|
|
|
|
|
|
|
|
add_com ("monitor", class_obscure, do_monitor_command,
|
2005-02-15 Andrew Cagney <cagney@gnu.org>
Mark up add_com, add_info and add_prefix_cmd.
* breakpoint.c, cp-support.c, dcache.c, dwarf2read.c: Update.
* exec.c, f-valprint.c, frame.c, gcore.c, gnu-nat.c: Update.
* go32-nat.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Update.
* kod.c, language.c, linux-nat.c, m32r-rom.c, macrocmd.c: Update.
* maint.c, memattr.c, mips-tdep.c, nto-procfs.c, objc-lang.c: Update.
* ocd.c, pa64solib.c, printcmd.c, procfs.c, regcache.c: Update.
* remote-e7000.c, remote-m32r-sdi.c, remote-mips.c: Update.
* remote-sds.c, remote-sim.c, remote-st.c, remote-utils.c: Update.
* remote.c, rs6000-tdep.c, ser-go32.c, serial.c: Update.
* sh-tdep.c, solib.c, somsolib.c, source.c, stack.c: Update.
* symfile.c, symtab.c, target.c, thread.c, top.c: Update.
* tracepoint.c, typeprint.c, utils.c, valprint.c: Update.
* win32-nat.c, xcoffsolib.c, cli/cli-cmds.c, cli/cli-dump.c: Update.
* cli/cli-logging.c, tui/tui-layout.c, tui/tui-regs.c: Update.
* tui/tui-stack.c, tui/tui-win.c: Update.
2005-02-15 16:49:28 +01:00
|
|
|
|
_("Send a command to the remote monitor (remote targets only)."));
|
1999-08-09 23:36:23 +02:00
|
|
|
|
|
2007-01-29 17:36:01 +01:00
|
|
|
|
add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack,
|
|
|
|
|
_("Print the name of each layer of the internal target stack."),
|
|
|
|
|
&maintenanceprintlist);
|
|
|
|
|
|
2008-08-19 15:05:02 +02:00
|
|
|
|
add_setshow_boolean_cmd ("target-async", no_class,
|
|
|
|
|
&target_async_permitted_1, _("\
|
|
|
|
|
Set whether gdb controls the inferior in asynchronous mode."), _("\
|
|
|
|
|
Show whether gdb controls the inferior in asynchronous mode."), _("\
|
|
|
|
|
Tells gdb whether to control the inferior in asynchronous mode."),
|
enable target async by default; separate MI and target notions of async
This finally makes background execution commands possible by default.
However, in order to do that, there's one last thing we need to do --
we need to separate the MI and target notions of "async". Unlike the
CLI, where the user explicitly requests foreground vs background
execution in the execution command itself (c vs c&), MI chose to treat
"set target-async" specially -- setting it changes the default
behavior of execution commands.
So, we can't simply "set target-async" default to on, as that would
affect MI frontends. Instead we have to make the setting MI-specific,
and teach MI about sync commands on top of an async target.
Because the "target" word in "set target-async" ends up as a potential
source of confusion, the patch adds a "set mi-async" option, and makes
"set target-async" a deprecated alias.
Rather than make the targets always async, this patch introduces a new
"maint set target-async" option so that the GDB developer can control
whether the target is async. This makes it simpler to debug issues
arising only in the synchronous mode; important because sync mode
seems unlikely to go away.
Unlike in previous revisions, "set target-async" does not affect this
new maint parameter. The rationale for this is that then one can
easily run the test suite in the "maint set target-async off" mode and
have tests that enable mi-async fail just like they fail on
non-async-capable targets. This emulation is exactly the point of the
maint option.
I had asked Tom in a previous iteration to split the actual change of
the target async default to a separate patch, but it turns out that
that is quite awkward in this version of the patch, because with MI
async and target async decoupled (unlike in previous versions), if we
don't flip the default at the same time, then just "set target-async
on" alone never actually manages to do anything. It's best to not
have that transitory state in the tree.
Given "set target-async on" now only has effect for MI, the patch goes
through the testsuite removing it from non-MI tests. MI tests are
adjusted to use the new and less confusing "mi-async" spelling.
2014-05-29 Pedro Alves <palves@redhat.com>
Tom Tromey <tromey@redhat.com>
* NEWS: Mention "maint set target-async", "set mi-async", and that
background execution commands are now always available.
* target.h (target_async_permitted): Update comment.
* target.c (target_async_permitted, target_async_permitted_1):
Default to 1.
(set_target_async_command): Rename to ...
(maint_set_target_async_command): ... this.
(show_target_async_command): Rename to ...
(maint_show_target_async_command): ... this.
(_initialize_target): Adjust.
* infcmd.c (prepare_execution_command): Make extern.
* inferior.h (prepare_execution_command): Declare.
* infrun.c (set_observer_mode): Leave target async alone.
* mi/mi-interp.c (mi_interpreter_init): Install
mi_on_sync_execution_done as sync_execution_done observer.
(mi_on_sync_execution_done): New function.
(mi_execute_command_input_handler): Don't print the prompt if we
just started a synchronous command with an async target.
(mi_on_resume): Check sync_execution before printing prompt.
* mi/mi-main.h (mi_async_p): Declare.
* mi/mi-main.c: Include gdbcmd.h.
(mi_async_p): New function.
(mi_async, mi_async_1): New globals.
(set_mi_async_command, show_mi_async_command, mi_async): New
functions.
(exec_continue): Call prepare_execution_command.
(run_one_inferior, mi_cmd_exec_run, mi_cmd_list_target_features)
(mi_execute_async_cli_command): Use mi_async_p.
(_initialize_mi_main): Install "set mi-async". Make
"target-async" a deprecated alias.
2014-05-29 Pedro Alves <palves@redhat.com>
Tom Tromey <tromey@redhat.com>
* gdb.texinfo (Non-Stop Mode): Remove "set target-async 1"
from example.
(Asynchronous and non-stop modes): Document '-gdb-set mi-async'.
Mention that target-async is now deprecated.
(Maintenance Commands): Document maint set/show target-async.
2014-05-29 Pedro Alves <palves@redhat.com>
Tom Tromey <tromey@redhat.com>
* gdb.base/async-shell.exp: Don't enable target-async.
* gdb.base/async.exp
* gdb.base/corefile.exp (corefile_test_attach): Remove 'async'
parameter. Adjust.
(top level): Don't test with "target-async".
* gdb.base/dprintf-non-stop.exp: Don't enable target-async.
* gdb.base/gdb-sigterm.exp: Don't test with "target-async".
* gdb.base/inferior-died.exp: Don't enable target-async.
* gdb.base/interrupt-noterm.exp: Likewise.
* gdb.mi/mi-async.exp: Use "mi-async" instead of "target-async".
* gdb.mi/mi-nonstop-exit.exp: Likewise.
* gdb.mi/mi-nonstop.exp: Likewise.
* gdb.mi/mi-ns-stale-regcache.exp: Likewise.
* gdb.mi/mi-nsintrall.exp: Likewise.
* gdb.mi/mi-nsmoribund.exp: Likewise.
* gdb.mi/mi-nsthrexec.exp: Likewise.
* gdb.mi/mi-watch-nonstop.exp: Likewise.
* gdb.multi/watchpoint-multi.exp: Adjust comment.
* gdb.python/py-evsignal.exp: Don't enable target-async.
* gdb.python/py-evthreads.exp: Likewise.
* gdb.python/py-prompt.exp: Likewise.
* gdb.reverse/break-precsave.exp: Don't test with "target-async".
* gdb.server/solib-list.exp: Don't enable target-async.
* gdb.threads/thread-specific-bp.exp: Likewise.
* lib/mi-support.exp: Adjust to use mi-async.
2014-05-29 20:58:57 +02:00
|
|
|
|
maint_set_target_async_command,
|
|
|
|
|
maint_show_target_async_command,
|
|
|
|
|
&maintenance_set_cmdlist,
|
|
|
|
|
&maintenance_show_cmdlist);
|
2008-08-19 15:05:02 +02:00
|
|
|
|
|
2010-06-12 02:05:22 +02:00
|
|
|
|
add_setshow_boolean_cmd ("may-write-registers", class_support,
|
|
|
|
|
&may_write_registers_1, _("\
|
|
|
|
|
Set permission to write into registers."), _("\
|
|
|
|
|
Show permission to write into registers."), _("\
|
|
|
|
|
When this permission is on, GDB may write into the target's registers.\n\
|
|
|
|
|
Otherwise, any sort of write attempt will result in an error."),
|
|
|
|
|
set_target_permissions, NULL,
|
|
|
|
|
&setlist, &showlist);
|
|
|
|
|
|
|
|
|
|
add_setshow_boolean_cmd ("may-write-memory", class_support,
|
|
|
|
|
&may_write_memory_1, _("\
|
|
|
|
|
Set permission to write into target memory."), _("\
|
|
|
|
|
Show permission to write into target memory."), _("\
|
|
|
|
|
When this permission is on, GDB may write into the target's memory.\n\
|
|
|
|
|
Otherwise, any sort of write attempt will result in an error."),
|
|
|
|
|
set_write_memory_permission, NULL,
|
|
|
|
|
&setlist, &showlist);
|
|
|
|
|
|
|
|
|
|
add_setshow_boolean_cmd ("may-insert-breakpoints", class_support,
|
|
|
|
|
&may_insert_breakpoints_1, _("\
|
|
|
|
|
Set permission to insert breakpoints in the target."), _("\
|
|
|
|
|
Show permission to insert breakpoints in the target."), _("\
|
|
|
|
|
When this permission is on, GDB may insert breakpoints in the program.\n\
|
|
|
|
|
Otherwise, any sort of insertion attempt will result in an error."),
|
|
|
|
|
set_target_permissions, NULL,
|
|
|
|
|
&setlist, &showlist);
|
|
|
|
|
|
|
|
|
|
add_setshow_boolean_cmd ("may-insert-tracepoints", class_support,
|
|
|
|
|
&may_insert_tracepoints_1, _("\
|
|
|
|
|
Set permission to insert tracepoints in the target."), _("\
|
|
|
|
|
Show permission to insert tracepoints in the target."), _("\
|
|
|
|
|
When this permission is on, GDB may insert tracepoints in the program.\n\
|
|
|
|
|
Otherwise, any sort of insertion attempt will result in an error."),
|
|
|
|
|
set_target_permissions, NULL,
|
|
|
|
|
&setlist, &showlist);
|
|
|
|
|
|
|
|
|
|
add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support,
|
|
|
|
|
&may_insert_fast_tracepoints_1, _("\
|
|
|
|
|
Set permission to insert fast tracepoints in the target."), _("\
|
|
|
|
|
Show permission to insert fast tracepoints in the target."), _("\
|
|
|
|
|
When this permission is on, GDB may insert fast tracepoints.\n\
|
|
|
|
|
Otherwise, any sort of insertion attempt will result in an error."),
|
|
|
|
|
set_target_permissions, NULL,
|
|
|
|
|
&setlist, &showlist);
|
|
|
|
|
|
|
|
|
|
add_setshow_boolean_cmd ("may-interrupt", class_support,
|
|
|
|
|
&may_stop_1, _("\
|
|
|
|
|
Set permission to interrupt or signal the target."), _("\
|
|
|
|
|
Show permission to interrupt or signal the target."), _("\
|
|
|
|
|
When this permission is on, GDB may interrupt/stop the target's execution.\n\
|
|
|
|
|
Otherwise, any attempt to interrupt or stop will be ignored."),
|
|
|
|
|
set_target_permissions, NULL,
|
|
|
|
|
&setlist, &showlist);
|
Allow making GDB not automatically connect to the native target.
Sometimes it's useful to be able to disable the automatic connection
to the native target. E.g., sometimes GDB disconnects from the
extended-remote target I was debugging, without me noticing it, and
then I do "run". That starts the program locally, and only after a
little head scratch session do I figure out the program is running
locally instead of remotely as intended. Same thing with "attach",
"info os", etc.
With the patch, we now can have this instead:
(gdb) set auto-connect-native-target off
(gdb) target extended-remote :9999
...
*gdb disconnects*
(gdb) run
Don't know how to run. Try "help target".
To still be able to connect to the native target with
auto-connect-native-target set to off, I've made "target native" work
instead of erroring out as today.
Before:
(gdb) target native
Use the "run" command to start a native process.
After:
(gdb) target native
Done. Use the "run" command to start a process.
(gdb) maint print target-stack
The current target stack is:
- native (Native process)
- exec (Local exec file)
- None (None)
(gdb) run
Starting program: ./a.out
...
I've also wanted this for the testsuite, when running against the
native-extended-gdbserver.exp board (runs against gdbserver in
extended-remote mode). With a non-native-target board, it's always a
bug to launch a program with the native target. Turns out we still
have one such case this patch catches:
(gdb) break main
Breakpoint 1 at 0x4009e5: file ../../../src/gdb/testsuite/gdb.base/coremaker.c, line 138.
(gdb) run
Don't know how to run. Try "help target".
(gdb) FAIL: gdb.base/corefile.exp: run: with core
On the patch itself, probably the least obvious bit is the need to go
through all targets, and move the unpush_target call to after the
generic_mourn_inferior call instead of before. This is what
inf-ptrace.c does too, ever since multi-process support was added.
The reason inf-ptrace.c does things in that order is that in the
current multi-process/single-target model, we shouldn't unpush the
target if there are still other live inferiors being debugged. The
check for that is "have_inferiors ()" (a misnomer nowadays...), which
does:
have_inferiors (void)
{
for (inf = inferior_list; inf; inf = inf->next)
if (inf->pid != 0)
return 1;
It's generic_mourn_inferior that ends up clearing inf->pid, so we need
to call it before the have_inferiors check. To make all native
targets behave the same WRT to explicit "target native", I've added an
inf_child_maybe_unpush_target function that targets call instead of
calling unpush_target directly, and as that includes the
have_inferiors check, I needed to adjust the targets.
Tested on x86_64 Fedora 20, native, and also with the
extended-gdbserver board.
Confirmed a cross build of djgpp gdb still builds.
Smoke tested a cross build of Windows gdb under Wine.
Untested otherwise.
gdb/
2014-05-21 Pedro Alves <palves@redhat.com>
* inf-child.c (inf_child_ops, inf_child_explicitly_opened): New
globals.
(inf_child_open_target): New function.
(inf_child_open): Use inf_child_open_target to push the target
instead of erroring out.
(inf_child_disconnect, inf_child_close)
(inf_child_maybe_unpush_target): New functions.
(inf_child_target): Install inf_child_disconnect and
inf_child_close. Store a pointer to the returned object.
* inf-child.h (inf_child_open_target, inf_child_maybe_unpush): New
declarations.
* target.c (auto_connect_native_target): New global.
(show_default_run_target): New function.
(find_default_run_target): Return NULL if automatically connecting
to the native target is disabled.
(_initialize_target): Install set/show auto-connect-native-target.
* NEWS: Mention "set auto-connect-native-target", and "target
native".
* linux-nat.c (super_close): New global.
(linux_nat_close): Call super_close.
(linux_nat_add_target): Store a pointer to the base class's
to_close method.
* inf-ptrace.c (inf_ptrace_mourn_inferior, inf_ptrace_detach): Use
inf_child_maybe_unpush.
* inf-ttrace.c (inf_ttrace_him): Don't push the target if it is
already pushed.
(inf_ttrace_mourn_inferior): Only unpush the target after mourning
the inferior. Use inf_child_maybe_unpush_target.
(inf_ttrace_attach): Don't push the target if it is already
pushed.
(inf_ttrace_detach): Use inf_child_maybe_unpush_target.
* darwin-nat.c (darwin_mourn_inferior): Only unpush the target
after mourning the inferior. Use inf_child_maybe_unpush_target.
(darwin_attach_pid): Don't push the target if it is already
pushed.
* gnu-nat.c (gnu_mourn_inferior): Only unpush the target after
mourning the inferior. Use inf_child_maybe_unpush_target.
(gnu_detach): Use inf_child_maybe_unpush_target.
* go32-nat.c (go32_create_inferior): Don't push the target if it
is already pushed.
(go32_mourn_inferior): Use inf_child_maybe_unpush_target.
* nto-procfs.c (procfs_is_nto_target): Adjust comment.
(procfs_open): Rename to ...
(procfs_open_1): ... this. Add target_ops parameter. Adjust
comments. Can target_preopen before changing node. Call
inf_child_open_target to push the target explicitly.
(procfs_attach): Don't push the target if it is already pushed.
(procfs_detach): Use inf_child_maybe_unpush_target.
(procfs_create_inferior): Don't push the target if it is already
pushed.
(nto_native_ops): New global.
(procfs_open): Reimplement.
(procfs_native_open): New function.
(init_procfs_targets): Install procfs_native_open as to_open of
"target native". Store a pointer to the "native" target in
nto_native_ops.
* procfs.c (procfs_attach): Don't push the target if it is already
pushed.
(procfs_detach): Use inf_child_maybe_unpush_target.
(procfs_mourn_inferior): Only unpush the target after mourning the
inferior. Use inf_child_maybe_unpush_target.
(procfs_init_inferior): Don't push the target if it is already
pushed.
* windows-nat.c (do_initial_windows_stuff): Don't push the target
if it is already pushed.
(windows_detach): Use inf_child_maybe_unpush_target.
(windows_mourn_inferior): Only unpush the target after mourning
the inferior. Use inf_child_maybe_unpush_target.
gdb/doc/
2014-05-21 Pedro Alves <palves@redhat.com>
* gdb.texinfo (Starting): Document "set/show
auto-connect-native-target".
(Target Commands): Document "target native".
gdb/testsuite/
2014-05-21 Pedro Alves <palves@redhat.com>
* boards/gdbserver-base.exp (GDBFLAGS): Set to "set
auto-connect-native-target off".
* gdb.base/auto-connect-native-target.c: New file.
* gdb.base/auto-connect-native-target.exp: New file.
2014-05-21 19:30:47 +02:00
|
|
|
|
|
|
|
|
|
add_setshow_boolean_cmd ("auto-connect-native-target", class_support,
|
|
|
|
|
&auto_connect_native_target, _("\
|
|
|
|
|
Set whether GDB may automatically connect to the native target."), _("\
|
|
|
|
|
Show whether GDB may automatically connect to the native target."), _("\
|
|
|
|
|
When on, and GDB is not connected to a target yet, GDB\n\
|
|
|
|
|
attempts \"run\" and other commands with the native target."),
|
|
|
|
|
NULL, show_auto_connect_native_target,
|
|
|
|
|
&setlist, &showlist);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|