When attaching to a process, the ttrace interface was creating a ptid
with a null LWP, because it did not have it yet. This LWP was then
set as soon as we received our first event from our inferior, during
our first wait. Similarly, the allocation of the thread private info
was also defered.
This works on PA/HP-UX, because we immediately perform a wait to pop
the event triggered by the attach. We can use that event to extract
the thread's LWP. But this does not work for IA64/HP-UX, because
the attach no longer triggers an event, and thus a wait should NOT
be performed (such a wait would simply block indefinitely).
It is actually possible, however, to determine the thread's LWP.
This change therefore adjusts the attach code to create a thread with
the correct LWP set, as well as with its private info allocated.
Same thing for all the other threads.
gdb/ChangeLog:
[ttrace] Compute thread list immediately after attach.
* inf_ttrace_attach (inf_ttrace_create_threads_after_attach):
New subprogram.
(inf_ttrace_attach): Use it.
This target_ops routine appears to be unused in practice, so this patch
removes it.
gdb/ChangeLog:
* inf-child.c (inf_child_acknowledge_created_inferior): Delete.
(inf_child_target): Do not set t->to_acknowledge_created_inferior.
* inf-ptrace.c (inf_ptrace_create_inferior): Remove call to
target_acknowledge_created_inferior.
* inf-ttrace.c (inf_ttrace_him): Likewise.
* target.h (struct target_ops): Delete to_acknowledge_created_inferior
field.
(target_acknowledge_created_inferior): Delete.
* target.c (update_current_target): Remove setting of
to_acknowledge_created_inferior field. Do default value for that
field either.
(debug_to_acknowledge_created_inferior): Delete.
(setup_target_debug): Remove setting of
current_target.to_acknowledge_created_inferior.
Thiago Jung Bauermann <bauerman@br.ibm.com>
Support for hw accelerated condition watchpoints in booke powerpc.
* breakpoint.c (fetch_watchpoint_value): Rename to fetch_subexp_value
and move to eval.c. Change callers.
(insert_bp_location): Pass watchpoint condition in
target_insert_watchpoint.
(remove_breakpoint_1) Pass watchpoint condition in
target_remove_watchpoint.
(watchpoint_locations_match): Call
target_can_accel_watchpoint_condition.
* eval.c: Include wrapper.h.
(fetch_subexp_value): Moved from breakpoint.c.
* ppc-linux-nat.c (ppc_linux_region_ok_for_hw_watchpoint):
Formatting fix.
(can_use_watchpoint_cond_accel): New function.
(calculate_dvc): Likewise.
(num_memory_accesses): Likewise.
(check_condition): Likewise.
(ppc_linux_can_accel_watchpoint_condition): Likewise
(ppc_linux_insert_watchpoint): Call can_use_watchpoint_cond_accel,
check_condition and calculate_dvc.
(ppc_linux_remove_watchpoint): Likewise.
(_initialize_ppc_linux_nat): Set to_can_accel_watchpoint_condition to
ppc_linux_can_accel_watchpoint_condition
* target.c (debug_to_insert_watchpoint): Add argument for watchpoint
condition.
(debug_to_remove_watchpoint): Likewise.
(debug_to_can_accel_watchpoint_condition): New function.
(update_current_target): Set to_can_accel_watchpoint_condition.
(setup_target_debug): Set to_can_accel_watchpoint_condition.
* target.h: Add opaque declaration for struct expression.
(struct target_ops) <to_insert_watchpoint>,
<to_remove_watchpoint>: Add new arguments to pass the watchpoint
<to_can_accel_watchpoint_condition>: New member.
condition. Update all callers and implementations.
(target_can_accel_watchpoint_condition): New macro.
* value.c (free_value_chain): New function.
* value.h (fetch_subexp_value): New prototype.
(free_value_chain): Likewise.
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".
* gdb_ptrace.h (PT_SYSCALL): Define here if not already defined.
* inf-ttrace.c (inf_ttrace_wait): Fix compilation failure
introduced after field syscall_id inside struct target_waitstatus
has been renamed into syscall_number.
Global renaming of find_thread_pid to find_thread_ptid.
* gdbthread.h (find_thread_ptid): Renamed from find_thread_pid.
* thread.c (find_thread_ptid): Renamed from find_thread_pid.
All callers updated.
gdbserver:
Global renaming of find_thread_pid to find_thread_ptid.
* server.h (find_thread_ptid): Renamed from find_thread_pid.
* inferiors.c (find_thread_ptid): Renamed from find_thread_pid.
All callers updated.
* gdbthread.h (struct thread_info): New `pending_follow' field.
* thread.c (new_thread): New function.
(add_thread_silent): Use it.
* breakpoint.c (internal_breakpoint_number): New global, moved
from inside...
(create_internal_breakpoint): ... this.
(clone_momentary_breakpoint): New.
* breakpoint.h (clone_momentary_breakpoint): Declare.
* infrun.c (nullify_last_target_wait_ptid): Move declaration
higher.
(pending_follow): Delete.
(follow_fork): Handle pending follow fork event here. Moved the
preserving of thread stepping state here.
(resume): Don't handle pending follow fork events here. Only
install the inferior's terminal modes if we're about to resume it.
(proceed): Handle possible pending follow fork events here.
(init_wait_for_inferior): No need to clear pending_follow anymore,
it's gone.
(handle_inferior_event): Adjust to per-thread `pending_follow'.
Call `follow_fork' to handle following the fork. If the
follow-fork is cancelled, stop stepping.
* linux-nat.c (linux_child_follow_fork): Adjust to per-thread
`pending_follow' events. Remove code that handled preserving the
thread stepping state.
* inf-ptrace.c (inf_ptrace_follow_fork): Ditto.
* inf-ttrace.c (inf_ttrace_follow_fork): Ditto.
gdb/testsuite/
* gdb.threads/fork-thread-pending.c: New.
* gdb.threads/fork-thread-pending.exp: New.
(fork_inferior): Call new_tty_postfork after forking adn adding
the child to the inferior list.
* inferior.h (new_tty_prefork, gdb_has_a_terminal): Don't declare
here.
* inflow.c (struct terminal_info): Remove const qualifier from
`run_terminal' field.
(inferior_thisrun_terminal): Tweak comment.
(inflow_inferior_exit): Release the `run_terminal' field.
(copy_terminal_info): New function.
(new_tty_postfork): New function.
* terminal.h (new_tty_prefork, new_tty, new_tty_postfork,
(copy_terminal_info, gdb_has_a_terminal, gdb_setpgid): Declare.
* inf-ptrace.c: Include terminal.h.
(inf_ptrace_follow_fork): Copy the parent's terminal info to the
child.
* linux-nat.c: Include terminal.h.
(linux_child_follow_fork): Copy the parent's terminal info to the
child.
* inf-ttrace.c: Include terminal.h.
(inf_ttrace_follow_fork): Copy the parent's terminal info to the
child.
parent to the child.
* inf-ttrace.c (inf_ttrace_follow_fork): Likewise.
* inf-ptrace.c (inf_ptrace_follow_fork): Likewise. Use
remove_breakpoints to remove breakpoints from the parent.
* inferior.h (attach_flag): Delete.
(inferior_process): Declare.
* solib.c (update_solib_list): Adjust.
* gnu-nat.c (gnu_create_inferior, gnu_attach): Adjust.
* inf-ptrace.c (inf_ptrace_detach): Adjust.
(inf_ptrace_files_info): Get it from the current inferior.
* inf-ttrace.c (inf_ttrace_attach): Adjust.
(inf_ttrace_files_info): Get it from the current
inferior.
* inflow.c (terminal_inferior, terminal_ours_1, set_sigint_trap)
(clear_sigint_trap): Get it from the current process.
* remote.c (extended_remote_attach_1)
(extended_remote_create_inferior_1): Adjust.
* top.c (quit_confirm, quit_target): Get it from the current inferior.
* procfs.c (do_detach): Adjust.
(procfs_wait): Get it from the event inferior.
(procfs_files_info): Get it from the current inferior.
* nto-procfs.c (procfs_files_info): Likewise.
(procfs_attach): Adjust. Set the attach_flag here.
(do_attach): Don't set it here.
(procfs_detach): Don't clear it.
(procfs_mourn_inferior): Don't clear it.
* solib-osf.c (osf_solib_create_inferior_hook): Adjust.
* target.c (attach_flag): Delete.
(generic_mourn_inferior): Don't clear it.
* win32-nat.c (get_win32_debug_event): Get it from the event
process.
(do_initial_win32_stuff): Add attaching argument. Set attach_flag
in the inferior accordingly.
(win32_attach): Don't set the attach_flag here. Pass 1 to
do_intial_win32_stuff.
(win32_files_info): Get it from the current inferior.
(win32_create_inferior): Dont clear attach_flag here. Pass 0 to
do_intial_win32_stuff.
(gnu_detach): Remove it.
* go32-nat.c (go32_create_inferior): Add process to gdb's inferior
table.
* inf-ptrace.c (inf_ptrace_follow_fork): Delete and add inferiors
to inferior table accordingly.
(inf_ptrace_attach): Add new process to inferior table.
(inf_ptrace_detach): Remove it.
* inf-ttrace.c (inf_ttrace_follow_fork): Delete and add inferiors
to inferior table accordingly.
(inf_ttrace_attach): Add process to inferior table.
(inf_ttrace_detach): Remove it.
* linux-fork.c (init_fork_list): Delete any left over inferior.
(linux_fork_mourn_inferior, detach_fork_command): Also delete
processes from inferior list.
* monitor.c (monitor_open): Add process to inferior list.
(monitor_close): Remove it.
* nto-procfs.c (procfs_attach): Add process to inferior list.
Find threads after pushing the target.
(procfs_detach): Remove process from inferior list.
(procfs_create_inferior): Add process to inferior list.
* procfs.c (procfs_detach): Remove process from inferior list.
(do_attach): Add process to inferior list.
* remote-sim.c (sim_create_inferior): Add process to inferior list.
(gdbsim_close): Remove it.
* target.c (generic_mourn_inferior): If inferior_ptid is not
null_ptid, remove the corresponding inferior from inferior list.
* win32-nat.c (do_initial_win32_stuff): Add process to inferior list.
(win32_detach): Remove it.
* linux-nat.c (linux_child_follow_fork): Delete and add inferiors
to inferior list accordingly.
* fork-child.c (fork_inferior): Add process to inferior list.
* corelow.c (CORELOW_PID): Define.
(core_close): Remove core from inferior list.
(core_open): Add it.
LWP_TERMINATE, resume the caller thread. On TTEVT_LWP_CREATE,
TTEVT_LWP_EXIT and TTEVT_LWP_TERMINATE, don't stop the whole
process, and return TARGET_WAITKIND_IGNORE.
(inf_ttrace_delete_dead_threads_callback): New.
(inf_ttrace_resume_lwp): New.
(inf_ttrace_resume_callback, inf_ttrace_resume): Rewrite. Don't
delete dying threads until they are really dead.
(inf_ttrace_wait): After stopping the whole process, delete any
dying thread that is really dead by now.
(inf_ttrace_thread_alive): Return 1.
(inf_ttrace_extra_thread_info): New.
(inf_ttrace_target): Register inf_ttrace_extra_thread_info.
of the child fork.
(inf_ttrace_attach): Add the main thread.
(inf_ttrace_resume_callback): Check for exited threads. Adjust
for always a thread.
(inf_ttrace_wait): Decorate the main thread's ptid with lwp info
using thread_change_ptid, and set its private data. Don't add the
main thread here.
(inf_ttrace_pid_to_str): Adjust.
* target.h (struct target_waitstatus): Store related_pid as a ptid.
(inferior_has_forked, inferior_has_vforked, inferior_has_execd):
Take a ptid_t.
* breakpoint.h (struct breakpoint): Change forked_inferior_pid
type to ptid.
* breakpoint.c (print_it_typical, bpstat_check_location)
(print_one_breakpoint_location, set_raw_breakpoint_without_location)
(create_fork_vfork_event_catchpoint): Adjust.
* infrun.c (fork_event): Change parent_pid and child_pid types to
ptid.
(follow_exec, inferior_has_forked, inferior_has_vforked)
(inferior_has_execd): Take a ptid_t and don't trim it.
* linux-thread-db.c (thread_db_wait): Don't trim the returned ptid.
* linux-nat.c (linux_child_follow_fork): Adjust.
* inf-ptrace.c (inf_ptrace_wait): Adjust.
* inf-ttrace.c (inf_ttrace_wait): Adjust.
* win32-nat.c (get_win32_debug_event): Don't set related_pid.
* gdbthread.h (add_thread_with_info): New.
* linux-thread-db.c: Add some documentation.
(GET_LWP, GET_PID, GET_THREAD, is_lwp, is_thread, BUILD_LWP): Delete.
(struct private_thread_info): Remove th_valid and ti_valid.
Replace ti with tid.
(thread_get_info_callback): Do not add TID to the new ptid. Do
not cache th or ti.
(thread_db_map_id2thr, lwp_from_thread): Delete functions.
(thread_from_lwp): Assert that the LWP is set. Do not add TID to the
new PTID.
(attach_thread): Handle an already-existing thread. Use
add_thread_with_info. Cache the th and tid.
(detach_thread): Verify that private was set. Remove verbose
argument and printing. Update caller.
(thread_db_detach): Do not adjust inferior_ptid.
(clear_lwpid_callback, thread_db_resume, thread_db_kill): Delete.
(check_event, find_new_threads_callback): Do not add TID to the new PTID.
(thread_db_wait): Do not use lwp_from_thread.
(thread_db_pid_to_str): Use the cached TID.
(thread_db_extra_thread_info): Check that private is set.
(same_ptid_callback): Delete.
(thread_db_get_thread_local_address): Do not use it or check
is_thread. Check that private is set. Assume that the thread
handle is already cached.
(init_thread_db_ops): Remove to_resume and to_kill.
* thread.c (add_thread_with_info): New.
(add_thread): Use it.
* linux-nat.c (find_thread_from_lwp): Delete.
(exit_lwp): Do not use it. Check print_thread_events. Print before
deleting the thread.
(GET_PID, GET_LWP, BUILD_LWP, is_lwp): Move to...
* linux-nat.h (GET_PID, GET_LWP, BUILD_LWP, is_lwp): ...here.
* inf-ttrace.c (inf_ttrace_wait): Use print_thread_events and
printf_unfiltered for thread exits.
* procfs.c (procfs_wait): Likewise.
2008-03-21 Pedro Alves <pedro@codesourcery.com>
* gdb.threads/fork-child-threads.exp: Test next over fork.
* thread.c (add_thread_silent): Renamed
from add_thread.
(print_thread_events): New variable definition.
(show_print_thread_events): New function.
(_initialize_thread): Add "set print thread-events" and
"show print thread-events" commands.
(add_thread): Announce new thread.
* gdbthread.h (add_thread_silent): Declare.
(print_thread_events): New variable declaration.
* inf-ttrace.c (inf_ttrace_wait): Don't
inform about new thread, as add_thread is always
called too, and will take care of that.
* infrun.c (handle_inferior_event): Likewise.
* procfs.c (procfs_wait): Likewise.
* remote.c (remote_currthread): Likewise.
* sol-thread.c (sol_thread_wait): Likewise.
* win32-nat.c (get_win32_debug_event): Likewise.
* linux-thread-db.c (attach_thread): Likewise.
Remove the verbose parameter.
(check_event): Make detach_thread be verbose
only if print_thread_events is set.
* linux-nat.c (lin_lwp_attach_lwp): Don't inform
about new thread. This is called only from
linux-thread-db.c:attach_thread, which will take care.
Remove the verbose parameter.
* linux-nat.h (lin_lwp_attach_lwp): Adjust prototype.
(inf_ttrace_delete_dying_threads_callback): New function.
(inf_ttrace_resume): After resuming the execution, iterate over
the dying threads to delete them for the thread list.
(inf_ttrace_wait): on TTEVT_LWP_EXIT and TTEVT_LWP_TERMINATE,
mark the corresponding thread as dying instead of removing it
from the thread list.
(inf_ttrace_thread_alive): return 0 for dying threads.
(inf_ttrace_follow_fork): New function.
(inf_ttrace_him, inf_ttrace_attach): Ask for TTEVT_FORK and
TTEVT_VFORK events. Replace TTEO_NOSTRCHLD option with
TTEO_PROC_INHERIT.
(inf_ttrace_create_inferior, inf_ttrace_attach): Add checks for
inf_ttrace_vfork_ppid.
(inf_ttrace_kill_inferior, inf_ttrace_detach): Detach from waiting
parent if appropriate.
(inf_ttrace_wait): Handle TTEVT_FORK and TTEVT_VFORK.
(inf_ttrace_target): Set to_follow_fork.
Joel Brobecker