binutils-gdb/gdb/linux-nat.c

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/* GNU/Linux native-dependent code common to multiple platforms.
Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
This file is part of GDB.
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
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "inferior.h"
#include "target.h"
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
#include "gdb_string.h"
#include "gdb_wait.h"
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
#include "gdb_assert.h"
#ifdef HAVE_TKILL_SYSCALL
#include <unistd.h>
#include <sys/syscall.h>
#endif
#include <sys/ptrace.h>
#include "linux-nat.h"
#include "linux-fork.h"
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
#include "gdbthread.h"
#include "gdbcmd.h"
#include "regcache.h"
#include "regset.h"
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
#include "inf-ptrace.h"
#include "auxv.h"
#include <sys/param.h> /* for MAXPATHLEN */
#include <sys/procfs.h> /* for elf_gregset etc. */
#include "elf-bfd.h" /* for elfcore_write_* */
#include "gregset.h" /* for gregset */
#include "gdbcore.h" /* for get_exec_file */
#include <ctype.h> /* for isdigit */
#include "gdbthread.h" /* for struct thread_info etc. */
#include "gdb_stat.h" /* for struct stat */
#include <fcntl.h> /* for O_RDONLY */
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
#include "inf-loop.h"
#include "event-loop.h"
#include "event-top.h"
#include <pwd.h>
#include <sys/types.h>
#include "gdb_dirent.h"
#include "xml-support.h"
#ifdef HAVE_PERSONALITY
# include <sys/personality.h>
# if !HAVE_DECL_ADDR_NO_RANDOMIZE
# define ADDR_NO_RANDOMIZE 0x0040000
# endif
#endif /* HAVE_PERSONALITY */
/* This comment documents high-level logic of this file.
Waiting for events in sync mode
===============================
When waiting for an event in a specific thread, we just use waitpid, passing
the specific pid, and not passing WNOHANG.
When waiting for an event in all threads, waitpid is not quite good. Prior to
version 2.4, Linux can either wait for event in main thread, or in secondary
threads. (2.4 has the __WALL flag). So, if we use blocking waitpid, we might
miss an event. The solution is to use non-blocking waitpid, together with
sigsuspend. First, we use non-blocking waitpid to get an event in the main
process, if any. Second, we use non-blocking waitpid with the __WCLONED
flag to check for events in cloned processes. If nothing is found, we use
sigsuspend to wait for SIGCHLD. When SIGCHLD arrives, it means something
happened to a child process -- and SIGCHLD will be delivered both for events
in main debugged process and in cloned processes. As soon as we know there's
an event, we get back to calling nonblocking waitpid with and without __WCLONED.
Note that SIGCHLD should be blocked between waitpid and sigsuspend calls,
so that we don't miss a signal. If SIGCHLD arrives in between, when it's
blocked, the signal becomes pending and sigsuspend immediately
notices it and returns.
Waiting for events in async mode
================================
In async mode, GDB should always be ready to handle both user input and target
events, so neither blocking waitpid nor sigsuspend are viable
options. Instead, we should notify the GDB main event loop whenever there's
unprocessed event from the target. The only way to notify this event loop is
to make it wait on input from a pipe, and write something to the pipe whenever
there's event. Obviously, if we fail to notify the event loop if there's
target event, it's bad. If we notify the event loop when there's no event
from target, linux-nat.c will detect that there's no event, actually, and
report event of type TARGET_WAITKIND_IGNORE, but it will waste time and
better avoided.
The main design point is that every time GDB is outside linux-nat.c, we have a
SIGCHLD handler installed that is called when something happens to the target
and notifies the GDB event loop. Also, the event is extracted from the target
using waitpid and stored for future use. Whenever GDB core decides to handle
the event, and calls into linux-nat.c, we disable SIGCHLD and process things
as in sync mode, except that before waitpid call we check if there are any
previously read events.
It could happen that during event processing, we'll try to get more events
than there are events in the local queue, which will result to waitpid call.
Those waitpid calls, while blocking, are guarantied to always have
something for waitpid to return. E.g., stopping a thread with SIGSTOP, and
waiting for the lwp to stop.
The event loop is notified about new events using a pipe. SIGCHLD handler does
waitpid and writes the results in to a pipe. GDB event loop has the other end
of the pipe among the sources. When event loop starts to process the event
and calls a function in linux-nat.c, all events from the pipe are transferred
into a local queue and SIGCHLD is blocked. Further processing goes as in sync
mode. Before we return from linux_nat_wait, we transfer all unprocessed events
from local queue back to the pipe, so that when we get back to event loop,
event loop will notice there's something more to do.
SIGCHLD is blocked when we're inside target_wait, so that should we actually
want to wait for some more events, SIGCHLD handler does not steal them from
us. Technically, it would be possible to add new events to the local queue but
it's about the same amount of work as blocking SIGCHLD.
This moving of events from pipe into local queue and back into pipe when we
enter/leave linux-nat.c is somewhat ugly. Unfortunately, GDB event loop is
home-grown and incapable to wait on any queue.
Use of signals
==============
We stop threads by sending a SIGSTOP. The use of SIGSTOP instead of another
signal is not entirely significant; we just need for a signal to be delivered,
so that we can intercept it. SIGSTOP's advantage is that it can not be
blocked. A disadvantage is that it is not a real-time signal, so it can only
be queued once; we do not keep track of other sources of SIGSTOP.
Two other signals that can't be blocked are SIGCONT and SIGKILL. But we can't
use them, because they have special behavior when the signal is generated -
not when it is delivered. SIGCONT resumes the entire thread group and SIGKILL
kills the entire thread group.
A delivered SIGSTOP would stop the entire thread group, not just the thread we
tkill'd. But we never let the SIGSTOP be delivered; we always intercept and
cancel it (by PTRACE_CONT without passing SIGSTOP).
We could use a real-time signal instead. This would solve those problems; we
could use PTRACE_GETSIGINFO to locate the specific stop signals sent by GDB.
But we would still have to have some support for SIGSTOP, since PTRACE_ATTACH
generates it, and there are races with trying to find a signal that is not
blocked. */
#ifndef O_LARGEFILE
#define O_LARGEFILE 0
#endif
/* If the system headers did not provide the constants, hard-code the normal
values. */
#ifndef PTRACE_EVENT_FORK
#define PTRACE_SETOPTIONS 0x4200
#define PTRACE_GETEVENTMSG 0x4201
/* options set using PTRACE_SETOPTIONS */
#define PTRACE_O_TRACESYSGOOD 0x00000001
#define PTRACE_O_TRACEFORK 0x00000002
#define PTRACE_O_TRACEVFORK 0x00000004
#define PTRACE_O_TRACECLONE 0x00000008
#define PTRACE_O_TRACEEXEC 0x00000010
#define PTRACE_O_TRACEVFORKDONE 0x00000020
#define PTRACE_O_TRACEEXIT 0x00000040
/* Wait extended result codes for the above trace options. */
#define PTRACE_EVENT_FORK 1
#define PTRACE_EVENT_VFORK 2
#define PTRACE_EVENT_CLONE 3
#define PTRACE_EVENT_EXEC 4
#define PTRACE_EVENT_VFORK_DONE 5
#define PTRACE_EVENT_EXIT 6
#endif /* PTRACE_EVENT_FORK */
/* We can't always assume that this flag is available, but all systems
with the ptrace event handlers also have __WALL, so it's safe to use
here. */
#ifndef __WALL
#define __WALL 0x40000000 /* Wait for any child. */
#endif
#ifndef PTRACE_GETSIGINFO
#define PTRACE_GETSIGINFO 0x4202
#endif
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
/* The single-threaded native GNU/Linux target_ops. We save a pointer for
the use of the multi-threaded target. */
static struct target_ops *linux_ops;
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
static struct target_ops linux_ops_saved;
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
/* The method to call, if any, when a new thread is attached. */
static void (*linux_nat_new_thread) (ptid_t);
/* The saved to_xfer_partial method, inherited from inf-ptrace.c.
Called by our to_xfer_partial. */
static LONGEST (*super_xfer_partial) (struct target_ops *,
enum target_object,
const char *, gdb_byte *,
const gdb_byte *,
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
ULONGEST, LONGEST);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
static int debug_linux_nat;
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_debug_linux_nat (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
fprintf_filtered (file, _("Debugging of GNU/Linux lwp module is %s.\n"),
value);
}
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
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
static int debug_linux_nat_async = 0;
static void
show_debug_linux_nat_async (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
fprintf_filtered (file, _("Debugging of GNU/Linux async lwp module is %s.\n"),
value);
}
static int disable_randomization = 1;
static void
show_disable_randomization (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
#ifdef HAVE_PERSONALITY
fprintf_filtered (file, _("\
Disabling randomization of debuggee's virtual address space is %s.\n"),
value);
#else /* !HAVE_PERSONALITY */
fputs_filtered (_("\
Disabling randomization of debuggee's virtual address space is unsupported on\n\
this platform.\n"), file);
#endif /* !HAVE_PERSONALITY */
}
static void
set_disable_randomization (char *args, int from_tty, struct cmd_list_element *c)
{
#ifndef HAVE_PERSONALITY
error (_("\
Disabling randomization of debuggee's virtual address space is unsupported on\n\
this platform."));
#endif /* !HAVE_PERSONALITY */
}
static int linux_parent_pid;
struct simple_pid_list
{
int pid;
int status;
struct simple_pid_list *next;
};
struct simple_pid_list *stopped_pids;
/* This variable is a tri-state flag: -1 for unknown, 0 if PTRACE_O_TRACEFORK
can not be used, 1 if it can. */
static int linux_supports_tracefork_flag = -1;
/* If we have PTRACE_O_TRACEFORK, this flag indicates whether we also have
PTRACE_O_TRACEVFORKDONE. */
static int linux_supports_tracevforkdone_flag = -1;
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
/* Async mode support */
/* Zero if the async mode, although enabled, is masked, which means
linux_nat_wait should behave as if async mode was off. */
static int linux_nat_async_mask_value = 1;
/* The read/write ends of the pipe registered as waitable file in the
event loop. */
static int linux_nat_event_pipe[2] = { -1, -1 };
/* Number of queued events in the pipe. */
static volatile int linux_nat_num_queued_events;
/* The possible SIGCHLD handling states. */
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
enum sigchld_state
{
/* SIGCHLD disabled, with action set to sigchld_handler, for the
sigsuspend in linux_nat_wait. */
sigchld_sync,
/* SIGCHLD enabled, with action set to async_sigchld_handler. */
sigchld_async,
/* Set SIGCHLD to default action. Used while creating an
inferior. */
sigchld_default
};
/* The current SIGCHLD handling state. */
static enum sigchld_state linux_nat_async_events_state;
static enum sigchld_state linux_nat_async_events (enum sigchld_state enable);
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
static void pipe_to_local_event_queue (void);
static void local_event_queue_to_pipe (void);
static void linux_nat_event_pipe_push (int pid, int status, int options);
static int linux_nat_event_pipe_pop (int* ptr_status, int* ptr_options);
static void linux_nat_set_async_mode (int on);
static void linux_nat_async (void (*callback)
(enum inferior_event_type event_type, void *context),
void *context);
static int linux_nat_async_mask (int mask);
static int kill_lwp (int lwpid, int signo);
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
static int stop_callback (struct lwp_info *lp, void *data);
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
/* Captures the result of a successful waitpid call, along with the
options used in that call. */
struct waitpid_result
{
int pid;
int status;
int options;
struct waitpid_result *next;
};
/* A singly-linked list of the results of the waitpid calls performed
in the async SIGCHLD handler. */
static struct waitpid_result *waitpid_queue = NULL;
/* Similarly to `waitpid', but check the local event queue instead of
querying the kernel queue. If PEEK, don't remove the event found
from the queue. */
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
static int
queued_waitpid_1 (int pid, int *status, int flags, int peek)
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
{
struct waitpid_result *msg = waitpid_queue, *prev = NULL;
if (debug_linux_nat_async)
fprintf_unfiltered (gdb_stdlog,
"\
QWPID: linux_nat_async_events_state(%d), linux_nat_num_queued_events(%d)\n",
linux_nat_async_events_state,
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
linux_nat_num_queued_events);
if (flags & __WALL)
{
for (; msg; prev = msg, msg = msg->next)
if (pid == -1 || pid == msg->pid)
break;
}
else if (flags & __WCLONE)
{
for (; msg; prev = msg, msg = msg->next)
if (msg->options & __WCLONE
&& (pid == -1 || pid == msg->pid))
break;
}
else
{
for (; msg; prev = msg, msg = msg->next)
if ((msg->options & __WCLONE) == 0
&& (pid == -1 || pid == msg->pid))
break;
}
if (msg)
{
int pid;
if (status)
*status = msg->status;
pid = msg->pid;
if (debug_linux_nat_async)
fprintf_unfiltered (gdb_stdlog, "QWPID: pid(%d), status(%x)\n",
pid, msg->status);
if (!peek)
{
if (prev)
prev->next = msg->next;
else
waitpid_queue = msg->next;
msg->next = NULL;
xfree (msg);
}
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
return pid;
}
if (debug_linux_nat_async)
fprintf_unfiltered (gdb_stdlog, "QWPID: miss\n");
if (status)
*status = 0;
return -1;
}
/* Similarly to `waitpid', but check the local event queue. */
static int
queued_waitpid (int pid, int *status, int flags)
{
return queued_waitpid_1 (pid, status, flags, 0);
}
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
static void
push_waitpid (int pid, int status, int options)
{
struct waitpid_result *event, *new_event;
new_event = xmalloc (sizeof (*new_event));
new_event->pid = pid;
new_event->status = status;
new_event->options = options;
new_event->next = NULL;
if (waitpid_queue)
{
for (event = waitpid_queue;
event && event->next;
event = event->next)
;
event->next = new_event;
}
else
waitpid_queue = new_event;
}
/* Drain all queued events of PID. If PID is -1, the effect is of
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
draining all events. */
static void
drain_queued_events (int pid)
{
while (queued_waitpid (pid, NULL, __WALL) != -1)
;
}
/* Trivial list manipulation functions to keep track of a list of
new stopped processes. */
static void
add_to_pid_list (struct simple_pid_list **listp, int pid, int status)
{
struct simple_pid_list *new_pid = xmalloc (sizeof (struct simple_pid_list));
new_pid->pid = pid;
new_pid->status = status;
new_pid->next = *listp;
*listp = new_pid;
}
static int
pull_pid_from_list (struct simple_pid_list **listp, int pid, int *status)
{
struct simple_pid_list **p;
for (p = listp; *p != NULL; p = &(*p)->next)
if ((*p)->pid == pid)
{
struct simple_pid_list *next = (*p)->next;
*status = (*p)->status;
xfree (*p);
*p = next;
return 1;
}
return 0;
}
static void
linux_record_stopped_pid (int pid, int status)
{
add_to_pid_list (&stopped_pids, pid, status);
}
/* A helper function for linux_test_for_tracefork, called after fork (). */
static void
linux_tracefork_child (void)
{
int ret;
ptrace (PTRACE_TRACEME, 0, 0, 0);
kill (getpid (), SIGSTOP);
fork ();
_exit (0);
}
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
/* Wrapper function for waitpid which handles EINTR, and checks for
locally queued events. */
static int
my_waitpid (int pid, int *status, int flags)
{
int ret;
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
/* There should be no concurrent calls to waitpid. */
gdb_assert (linux_nat_async_events_state == sigchld_sync);
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
ret = queued_waitpid (pid, status, flags);
if (ret != -1)
return ret;
do
{
ret = waitpid (pid, status, flags);
}
while (ret == -1 && errno == EINTR);
return ret;
}
/* Determine if PTRACE_O_TRACEFORK can be used to follow fork events.
First, we try to enable fork tracing on ORIGINAL_PID. If this fails,
we know that the feature is not available. This may change the tracing
options for ORIGINAL_PID, but we'll be setting them shortly anyway.
However, if it succeeds, we don't know for sure that the feature is
available; old versions of PTRACE_SETOPTIONS ignored unknown options. We
create a child process, attach to it, use PTRACE_SETOPTIONS to enable
fork tracing, and let it fork. If the process exits, we assume that we
can't use TRACEFORK; if we get the fork notification, and we can extract
the new child's PID, then we assume that we can. */
static void
linux_test_for_tracefork (int original_pid)
{
int child_pid, ret, status;
long second_pid;
enum sigchld_state async_events_original_state;
async_events_original_state = linux_nat_async_events (sigchld_sync);
linux_supports_tracefork_flag = 0;
linux_supports_tracevforkdone_flag = 0;
ret = ptrace (PTRACE_SETOPTIONS, original_pid, 0, PTRACE_O_TRACEFORK);
if (ret != 0)
return;
child_pid = fork ();
if (child_pid == -1)
2005-02-11 Andrew Cagney <cagney@gnu.org> Mark up error_no_arg, query, perror_with_name, complaint, and internal_error. * breakpoint.c, cp-abi.c, cp-namespace.c, cp-support.c: Update. * cris-tdep.c, dbxread.c, dictionary.c, dsrec.c: Update. * dummy-frame.c, dve3900-rom.c, dwarf2-frame.c, dwarf2expr.c: Update. * dwarf2read.c, dwarfread.c, elfread.c, event-loop.c: Update. * exceptions.c, exec.c, f-lang.c, findvar.c, fork-child.c: Update. * frame-unwind.c, frame.c, frv-linux-tdep.c, frv-tdep.c: Update. * gdb_assert.h, gdbarch.c, gdbtypes.c, gnu-nat.c: Update. * go32-nat.c, hppa-tdep.c, hppabsd-nat.c, hpread.c: Update. * i386-linux-nat.c, i386-nat.c, i386-tdep.c, i386bsd-nat.c: Update. * i386fbsd-nat.c, inf-ptrace.c, inf-ttrace.c, infcall.c: Update. * infcmd.c, inflow.c, infptrace.c, infrun.c, inftarg.c: Update. * interps.c, language.c, linespec.c, linux-nat.c: Update. * m32r-linux-nat.c, m68k-tdep.c, m68kbsd-nat.c: Update. * m68klinux-nat.c, m88kbsd-nat.c, macroexp.c, macroscope.c: Update. * macrotab.c, maint.c, mdebugread.c, memattr.c: Update. * mips-linux-tdep.c, mips-tdep.c, mips64obsd-nat.c: Update. * mipsnbsd-nat.c, mn10300-tdep.c, monitor.c, nto-procfs.c: Update. * objc-lang.c, objfiles.c, objfiles.h, ocd.c, osabi.c: Update. * parse.c, ppc-bdm.c, ppc-linux-nat.c, ppc-sysv-tdep.c: Update. * ppcnbsd-nat.c, ppcobsd-nat.c, printcmd.c, procfs.c: Update. * regcache.c, reggroups.c, remote-e7000.c, remote-mips.c: Update. * remote-rdp.c, remote-sds.c, remote-sim.c, remote-st.c: Update. * remote-utils.c, remote.c, rs6000-nat.c, rs6000-tdep.c: Update. * s390-nat.c, s390-tdep.c, sentinel-frame.c, serial.c: Update. * sh-tdep.c, sh3-rom.c, sh64-tdep.c, shnbsd-nat.c: Update. * solib-aix5.c, solib-svr4.c, solib.c, source.c: Update. * sparc-nat.c, stabsread.c, stack.c, symfile.c, symtab.c: Update. * symtab.h, target.c, tracepoint.c, ui-file.c, ui-out.c: Update. * utils.c, valops.c, valprint.c, vax-nat.c, vaxbsd-nat.c: Update. * win32-nat.c, xcoffread.c, xstormy16-tdep.c: Update. * cli/cli-cmds.c, cli/cli-logging.c, cli/cli-script.c: Update. * cli/cli-setshow.c, mi/mi-cmd-break.c, mi/mi-cmds.c: Update. * mi/mi-console.c, mi/mi-getopt.c, mi/mi-out.c: Update. * tui/tui-file.c, tui/tui-interp.c: Update.
2005-02-11 19:13:55 +01:00
perror_with_name (("fork"));
if (child_pid == 0)
linux_tracefork_child ();
ret = my_waitpid (child_pid, &status, 0);
if (ret == -1)
2005-02-11 Andrew Cagney <cagney@gnu.org> Mark up error_no_arg, query, perror_with_name, complaint, and internal_error. * breakpoint.c, cp-abi.c, cp-namespace.c, cp-support.c: Update. * cris-tdep.c, dbxread.c, dictionary.c, dsrec.c: Update. * dummy-frame.c, dve3900-rom.c, dwarf2-frame.c, dwarf2expr.c: Update. * dwarf2read.c, dwarfread.c, elfread.c, event-loop.c: Update. * exceptions.c, exec.c, f-lang.c, findvar.c, fork-child.c: Update. * frame-unwind.c, frame.c, frv-linux-tdep.c, frv-tdep.c: Update. * gdb_assert.h, gdbarch.c, gdbtypes.c, gnu-nat.c: Update. * go32-nat.c, hppa-tdep.c, hppabsd-nat.c, hpread.c: Update. * i386-linux-nat.c, i386-nat.c, i386-tdep.c, i386bsd-nat.c: Update. * i386fbsd-nat.c, inf-ptrace.c, inf-ttrace.c, infcall.c: Update. * infcmd.c, inflow.c, infptrace.c, infrun.c, inftarg.c: Update. * interps.c, language.c, linespec.c, linux-nat.c: Update. * m32r-linux-nat.c, m68k-tdep.c, m68kbsd-nat.c: Update. * m68klinux-nat.c, m88kbsd-nat.c, macroexp.c, macroscope.c: Update. * macrotab.c, maint.c, mdebugread.c, memattr.c: Update. * mips-linux-tdep.c, mips-tdep.c, mips64obsd-nat.c: Update. * mipsnbsd-nat.c, mn10300-tdep.c, monitor.c, nto-procfs.c: Update. * objc-lang.c, objfiles.c, objfiles.h, ocd.c, osabi.c: Update. * parse.c, ppc-bdm.c, ppc-linux-nat.c, ppc-sysv-tdep.c: Update. * ppcnbsd-nat.c, ppcobsd-nat.c, printcmd.c, procfs.c: Update. * regcache.c, reggroups.c, remote-e7000.c, remote-mips.c: Update. * remote-rdp.c, remote-sds.c, remote-sim.c, remote-st.c: Update. * remote-utils.c, remote.c, rs6000-nat.c, rs6000-tdep.c: Update. * s390-nat.c, s390-tdep.c, sentinel-frame.c, serial.c: Update. * sh-tdep.c, sh3-rom.c, sh64-tdep.c, shnbsd-nat.c: Update. * solib-aix5.c, solib-svr4.c, solib.c, source.c: Update. * sparc-nat.c, stabsread.c, stack.c, symfile.c, symtab.c: Update. * symtab.h, target.c, tracepoint.c, ui-file.c, ui-out.c: Update. * utils.c, valops.c, valprint.c, vax-nat.c, vaxbsd-nat.c: Update. * win32-nat.c, xcoffread.c, xstormy16-tdep.c: Update. * cli/cli-cmds.c, cli/cli-logging.c, cli/cli-script.c: Update. * cli/cli-setshow.c, mi/mi-cmd-break.c, mi/mi-cmds.c: Update. * mi/mi-console.c, mi/mi-getopt.c, mi/mi-out.c: Update. * tui/tui-file.c, tui/tui-interp.c: Update.
2005-02-11 19:13:55 +01:00
perror_with_name (("waitpid"));
else if (ret != child_pid)
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 (_("linux_test_for_tracefork: waitpid: unexpected result %d."), ret);
if (! WIFSTOPPED (status))
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 (_("linux_test_for_tracefork: waitpid: unexpected status %d."), status);
ret = ptrace (PTRACE_SETOPTIONS, child_pid, 0, PTRACE_O_TRACEFORK);
if (ret != 0)
{
ret = ptrace (PTRACE_KILL, child_pid, 0, 0);
if (ret != 0)
{
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
warning (_("linux_test_for_tracefork: failed to kill child"));
linux_nat_async_events (async_events_original_state);
return;
}
ret = my_waitpid (child_pid, &status, 0);
if (ret != child_pid)
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
warning (_("linux_test_for_tracefork: failed to wait for killed child"));
else if (!WIFSIGNALED (status))
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
warning (_("linux_test_for_tracefork: unexpected wait status 0x%x from "
"killed child"), status);
linux_nat_async_events (async_events_original_state);
return;
}
/* Check whether PTRACE_O_TRACEVFORKDONE is available. */
ret = ptrace (PTRACE_SETOPTIONS, child_pid, 0,
PTRACE_O_TRACEFORK | PTRACE_O_TRACEVFORKDONE);
linux_supports_tracevforkdone_flag = (ret == 0);
ret = ptrace (PTRACE_CONT, child_pid, 0, 0);
if (ret != 0)
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
warning (_("linux_test_for_tracefork: failed to resume child"));
ret = my_waitpid (child_pid, &status, 0);
if (ret == child_pid && WIFSTOPPED (status)
&& status >> 16 == PTRACE_EVENT_FORK)
{
second_pid = 0;
ret = ptrace (PTRACE_GETEVENTMSG, child_pid, 0, &second_pid);
if (ret == 0 && second_pid != 0)
{
int second_status;
linux_supports_tracefork_flag = 1;
my_waitpid (second_pid, &second_status, 0);
ret = ptrace (PTRACE_KILL, second_pid, 0, 0);
if (ret != 0)
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
warning (_("linux_test_for_tracefork: failed to kill second child"));
my_waitpid (second_pid, &status, 0);
}
}
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
warning (_("linux_test_for_tracefork: unexpected result from waitpid "
"(%d, status 0x%x)"), ret, status);
ret = ptrace (PTRACE_KILL, child_pid, 0, 0);
if (ret != 0)
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
warning (_("linux_test_for_tracefork: failed to kill child"));
my_waitpid (child_pid, &status, 0);
linux_nat_async_events (async_events_original_state);
}
/* Return non-zero iff we have tracefork functionality available.
This function also sets linux_supports_tracefork_flag. */
static int
linux_supports_tracefork (int pid)
{
if (linux_supports_tracefork_flag == -1)
linux_test_for_tracefork (pid);
return linux_supports_tracefork_flag;
}
static int
linux_supports_tracevforkdone (int pid)
{
if (linux_supports_tracefork_flag == -1)
linux_test_for_tracefork (pid);
return linux_supports_tracevforkdone_flag;
}
void
linux_enable_event_reporting (ptid_t ptid)
{
int pid = ptid_get_lwp (ptid);
int options;
if (pid == 0)
pid = ptid_get_pid (ptid);
if (! linux_supports_tracefork (pid))
return;
options = PTRACE_O_TRACEFORK | PTRACE_O_TRACEVFORK | PTRACE_O_TRACEEXEC
| PTRACE_O_TRACECLONE;
if (linux_supports_tracevforkdone (pid))
options |= PTRACE_O_TRACEVFORKDONE;
/* Do not enable PTRACE_O_TRACEEXIT until GDB is more prepared to support
read-only process state. */
ptrace (PTRACE_SETOPTIONS, pid, 0, options);
}
static void
linux_child_post_attach (int pid)
{
linux_enable_event_reporting (pid_to_ptid (pid));
check_for_thread_db ();
}
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
static void
linux_child_post_startup_inferior (ptid_t ptid)
{
linux_enable_event_reporting (ptid);
check_for_thread_db ();
}
static int
linux_child_follow_fork (struct target_ops *ops, int follow_child)
{
ptid_t last_ptid;
struct target_waitstatus last_status;
int has_vforked;
int parent_pid, child_pid;
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
if (target_can_async_p ())
target_async (NULL, 0);
get_last_target_status (&last_ptid, &last_status);
has_vforked = (last_status.kind == TARGET_WAITKIND_VFORKED);
parent_pid = ptid_get_lwp (last_ptid);
if (parent_pid == 0)
parent_pid = ptid_get_pid (last_ptid);
child_pid = PIDGET (last_status.value.related_pid);
if (! follow_child)
{
/* We're already attached to the parent, by default. */
/* Before detaching from the child, remove all breakpoints from
it. (This won't actually modify the breakpoint list, but will
physically remove the breakpoints from the child.) */
/* If we vforked this will remove the breakpoints from the parent
also, but they'll be reinserted below. */
detach_breakpoints (child_pid);
/* Detach new forked process? */
if (detach_fork)
{
if (info_verbose || debug_linux_nat)
{
target_terminal_ours ();
fprintf_filtered (gdb_stdlog,
"Detaching after fork from child process %d.\n",
child_pid);
}
ptrace (PTRACE_DETACH, child_pid, 0, 0);
}
else
{
struct fork_info *fp;
* gnu-nat.c (gnu_attach): Add process to inferiors table. (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.
2008-09-22 17:16:51 +02:00
/* Add process to GDB's tables. */
add_inferior (child_pid);
/* Retain child fork in ptrace (stopped) state. */
fp = find_fork_pid (child_pid);
if (!fp)
fp = add_fork (child_pid);
fork_save_infrun_state (fp, 0);
}
if (has_vforked)
{
gdb_assert (linux_supports_tracefork_flag >= 0);
if (linux_supports_tracevforkdone (0))
{
int status;
ptrace (PTRACE_CONT, parent_pid, 0, 0);
my_waitpid (parent_pid, &status, __WALL);
if ((status >> 16) != PTRACE_EVENT_VFORK_DONE)
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
warning (_("Unexpected waitpid result %06x when waiting for "
"vfork-done"), status);
}
else
{
/* We can't insert breakpoints until the child has
finished with the shared memory region. We need to
wait until that happens. Ideal would be to just
call:
- ptrace (PTRACE_SYSCALL, parent_pid, 0, 0);
- waitpid (parent_pid, &status, __WALL);
However, most architectures can't handle a syscall
being traced on the way out if it wasn't traced on
the way in.
We might also think to loop, continuing the child
until it exits or gets a SIGTRAP. One problem is
that the child might call ptrace with PTRACE_TRACEME.
There's no simple and reliable way to figure out when
the vforked child will be done with its copy of the
shared memory. We could step it out of the syscall,
two instructions, let it go, and then single-step the
parent once. When we have hardware single-step, this
would work; with software single-step it could still
be made to work but we'd have to be able to insert
single-step breakpoints in the child, and we'd have
to insert -just- the single-step breakpoint in the
parent. Very awkward.
In the end, the best we can do is to make sure it
runs for a little while. Hopefully it will be out of
range of any breakpoints we reinsert. Usually this
is only the single-step breakpoint at vfork's return
point. */
usleep (10000);
}
/* Since we vforked, breakpoints were removed in the parent
too. Put them back. */
reattach_breakpoints (parent_pid);
}
}
else
{
Remove context switching in favour of accessing thread_info fields directly. * infrun.c (stepping_over_breakpoint, step_resume_breakpoint): Delete. (struct thread_stepping_state): Delete. (gtss, tss): Delete. (follow_inferior_reset_breakpoints, follow_exec) (resume, clear_proceed_status): Adjust. (prev_pc): Delete. (proceed, start_remote, init_wait_for_inferior): Adjust. (struct execution_control_state): Add event_thread member. (delete_step_resume_breakpoint_callback) (delete_step_thread_step_resume_breakpoint) (delete_step_thread_step_resume_breakpoint_cleanup) (delete_step_thread_step_resume_breakpoint): New. (wait_for_inferior, init_execution_control_state): Use delete_step_thread_step_resume_breakpoint_cleanup. (wait_for_inferior): Set the event_thread. (fetch_inferior_event): Ditto. Delete the step-resume breakpoint with delete_step_thread_step_resume_breakpoint. (init_thread_stepping_state): Change parameter type to thread_info. Adjust. (context_switch): Don't context switch prev_pc, stepping_over_breakpoint, step_resume_breakpoint, step_range_start, step_range_end, step_frame_id, tss->stepping_over_breakpoint, tss->stepping_through_solib_after_catch, tss->stepping_through_solib_catchpoints, tss->current_line, or tss->current_symtab. (adjust_pc_after_break, handle_inferior_event) (currently_stepping, step_into_function) (insert_step_resume_breakpoint_at_sal) (insert_longjmp_resume_breakpoint, keep_going): Adjust. (clear_stepping_state): New. (normal_stop): Adjust. (save_inferior_status, restore_inferior_status): Adjust. * gdbthread.h (struct thread_info): Comments describing the members moved here. Add step_after_step_resume_breakpoint. (delete_step_resume_breakpoint): Add thread_info argument. (save_infrun_state, load_infrun_state): Remove prev_pc, trap_expected, step_resume_breakpoint, step_range_start, step_range_end, step_frame_id, another_trap, stepping_through_solib_after_catch, stepping_through_solib_catchpoints, current_line and current_symtab function arguments. (inferior_thread): Declare. * thread.c (inferior_thread): New. (delete_step_resume_breakpoint): Add a thread_info parameter and rewrite. (load_infrun_state, save_infrun_state): Remove prev_pc, trap_expected, step_resume_breakpoint, step_range_start, step_range_end, step_frame_id, stepping_over_breakpoint, stepping_through_solib_after_catch, stepping_through_solib_catchpoints, current_line and current_symtab args. Remove code referencing them. * infcmd.c (step_range_start, step_range_end, step_frame_id): Delete. (step_1, step_once, until_next_command): Adjust. * inferior.h (step_range_start, step_range_end, step_frame_id): Delete. * linux-nat.c (linux_child_follow_fork): If following the child, move the step state to it. Adjust. * inf-ptrace.c (inf_ptrace_follow_fork): Ditto. * inf-ttrace.c (inf_ttrace_follow_fork): Ditto.
2008-09-08 23:40:39 +02:00
struct thread_info *last_tp = find_thread_pid (last_ptid);
struct thread_info *tp;
char child_pid_spelling[40];
Remove context switching in favour of accessing thread_info fields directly. * infrun.c (stepping_over_breakpoint, step_resume_breakpoint): Delete. (struct thread_stepping_state): Delete. (gtss, tss): Delete. (follow_inferior_reset_breakpoints, follow_exec) (resume, clear_proceed_status): Adjust. (prev_pc): Delete. (proceed, start_remote, init_wait_for_inferior): Adjust. (struct execution_control_state): Add event_thread member. (delete_step_resume_breakpoint_callback) (delete_step_thread_step_resume_breakpoint) (delete_step_thread_step_resume_breakpoint_cleanup) (delete_step_thread_step_resume_breakpoint): New. (wait_for_inferior, init_execution_control_state): Use delete_step_thread_step_resume_breakpoint_cleanup. (wait_for_inferior): Set the event_thread. (fetch_inferior_event): Ditto. Delete the step-resume breakpoint with delete_step_thread_step_resume_breakpoint. (init_thread_stepping_state): Change parameter type to thread_info. Adjust. (context_switch): Don't context switch prev_pc, stepping_over_breakpoint, step_resume_breakpoint, step_range_start, step_range_end, step_frame_id, tss->stepping_over_breakpoint, tss->stepping_through_solib_after_catch, tss->stepping_through_solib_catchpoints, tss->current_line, or tss->current_symtab. (adjust_pc_after_break, handle_inferior_event) (currently_stepping, step_into_function) (insert_step_resume_breakpoint_at_sal) (insert_longjmp_resume_breakpoint, keep_going): Adjust. (clear_stepping_state): New. (normal_stop): Adjust. (save_inferior_status, restore_inferior_status): Adjust. * gdbthread.h (struct thread_info): Comments describing the members moved here. Add step_after_step_resume_breakpoint. (delete_step_resume_breakpoint): Add thread_info argument. (save_infrun_state, load_infrun_state): Remove prev_pc, trap_expected, step_resume_breakpoint, step_range_start, step_range_end, step_frame_id, another_trap, stepping_through_solib_after_catch, stepping_through_solib_catchpoints, current_line and current_symtab function arguments. (inferior_thread): Declare. * thread.c (inferior_thread): New. (delete_step_resume_breakpoint): Add a thread_info parameter and rewrite. (load_infrun_state, save_infrun_state): Remove prev_pc, trap_expected, step_resume_breakpoint, step_range_start, step_range_end, step_frame_id, stepping_over_breakpoint, stepping_through_solib_after_catch, stepping_through_solib_catchpoints, current_line and current_symtab args. Remove code referencing them. * infcmd.c (step_range_start, step_range_end, step_frame_id): Delete. (step_1, step_once, until_next_command): Adjust. * inferior.h (step_range_start, step_range_end, step_frame_id): Delete. * linux-nat.c (linux_child_follow_fork): If following the child, move the step state to it. Adjust. * inf-ptrace.c (inf_ptrace_follow_fork): Ditto. * inf-ttrace.c (inf_ttrace_follow_fork): Ditto.
2008-09-08 23:40:39 +02:00
/* Copy user stepping state to the new inferior thread. */
struct breakpoint *step_resume_breakpoint = last_tp->step_resume_breakpoint;
CORE_ADDR step_range_start = last_tp->step_range_start;
CORE_ADDR step_range_end = last_tp->step_range_end;
struct frame_id step_frame_id = last_tp->step_frame_id;
/* Otherwise, deleting the parent would get rid of this
breakpoint. */
last_tp->step_resume_breakpoint = NULL;
/* Needed to keep the breakpoint lists in sync. */
if (! has_vforked)
detach_breakpoints (child_pid);
/* Before detaching from the parent, remove all breakpoints from it. */
remove_breakpoints ();
if (info_verbose || debug_linux_nat)
{
target_terminal_ours ();
fprintf_filtered (gdb_stdlog,
"Attaching after fork to child process %d.\n",
child_pid);
}
/* Add the new inferior first, so that the target_detach below
doesn't unpush the target. */
add_inferior (child_pid);
/* If we're vforking, we may want to hold on to the parent until
the child exits or execs. At exec time we can remove the old
breakpoints from the parent and detach it; at exit time we
could do the same (or even, sneakily, resume debugging it - the
child's exec has failed, or something similar).
This doesn't clean up "properly", because we can't call
target_detach, but that's OK; if the current target is "child",
then it doesn't need any further cleanups, and lin_lwp will
generally not encounter vfork (vfork is defined to fork
in libpthread.so).
The holding part is very easy if we have VFORKDONE events;
but keeping track of both processes is beyond GDB at the
moment. So we don't expose the parent to the rest of GDB.
Instead we quietly hold onto it until such time as we can
safely resume it. */
if (has_vforked)
* gnu-nat.c (gnu_attach): Add process to inferiors table. (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.
2008-09-22 17:16:51 +02:00
{
linux_parent_pid = parent_pid;
detach_inferior (parent_pid);
}
else if (!detach_fork)
{
struct fork_info *fp;
/* Retain parent fork in ptrace (stopped) state. */
fp = find_fork_pid (parent_pid);
if (!fp)
fp = add_fork (parent_pid);
fork_save_infrun_state (fp, 0);
/* Also add an entry for the child fork. */
fp = find_fork_pid (child_pid);
if (!fp)
fp = add_fork (child_pid);
fork_save_infrun_state (fp, 0);
}
else
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
target_detach (NULL, 0);
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
inferior_ptid = ptid_build (child_pid, child_pid, 0);
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
linux_nat_switch_fork (inferior_ptid);
check_for_thread_db ();
Remove context switching in favour of accessing thread_info fields directly. * infrun.c (stepping_over_breakpoint, step_resume_breakpoint): Delete. (struct thread_stepping_state): Delete. (gtss, tss): Delete. (follow_inferior_reset_breakpoints, follow_exec) (resume, clear_proceed_status): Adjust. (prev_pc): Delete. (proceed, start_remote, init_wait_for_inferior): Adjust. (struct execution_control_state): Add event_thread member. (delete_step_resume_breakpoint_callback) (delete_step_thread_step_resume_breakpoint) (delete_step_thread_step_resume_breakpoint_cleanup) (delete_step_thread_step_resume_breakpoint): New. (wait_for_inferior, init_execution_control_state): Use delete_step_thread_step_resume_breakpoint_cleanup. (wait_for_inferior): Set the event_thread. (fetch_inferior_event): Ditto. Delete the step-resume breakpoint with delete_step_thread_step_resume_breakpoint. (init_thread_stepping_state): Change parameter type to thread_info. Adjust. (context_switch): Don't context switch prev_pc, stepping_over_breakpoint, step_resume_breakpoint, step_range_start, step_range_end, step_frame_id, tss->stepping_over_breakpoint, tss->stepping_through_solib_after_catch, tss->stepping_through_solib_catchpoints, tss->current_line, or tss->current_symtab. (adjust_pc_after_break, handle_inferior_event) (currently_stepping, step_into_function) (insert_step_resume_breakpoint_at_sal) (insert_longjmp_resume_breakpoint, keep_going): Adjust. (clear_stepping_state): New. (normal_stop): Adjust. (save_inferior_status, restore_inferior_status): Adjust. * gdbthread.h (struct thread_info): Comments describing the members moved here. Add step_after_step_resume_breakpoint. (delete_step_resume_breakpoint): Add thread_info argument. (save_infrun_state, load_infrun_state): Remove prev_pc, trap_expected, step_resume_breakpoint, step_range_start, step_range_end, step_frame_id, another_trap, stepping_through_solib_after_catch, stepping_through_solib_catchpoints, current_line and current_symtab function arguments. (inferior_thread): Declare. * thread.c (inferior_thread): New. (delete_step_resume_breakpoint): Add a thread_info parameter and rewrite. (load_infrun_state, save_infrun_state): Remove prev_pc, trap_expected, step_resume_breakpoint, step_range_start, step_range_end, step_frame_id, stepping_over_breakpoint, stepping_through_solib_after_catch, stepping_through_solib_catchpoints, current_line and current_symtab args. Remove code referencing them. * infcmd.c (step_range_start, step_range_end, step_frame_id): Delete. (step_1, step_once, until_next_command): Adjust. * inferior.h (step_range_start, step_range_end, step_frame_id): Delete. * linux-nat.c (linux_child_follow_fork): If following the child, move the step state to it. Adjust. * inf-ptrace.c (inf_ptrace_follow_fork): Ditto. * inf-ttrace.c (inf_ttrace_follow_fork): Ditto.
2008-09-08 23:40:39 +02:00
tp = inferior_thread ();
tp->step_resume_breakpoint = step_resume_breakpoint;
tp->step_range_start = step_range_start;
tp->step_range_end = step_range_end;
tp->step_frame_id = step_frame_id;
/* Reset breakpoints in the child as appropriate. */
follow_inferior_reset_breakpoints ();
}
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
if (target_can_async_p ())
target_async (inferior_event_handler, 0);
return 0;
}
static void
linux_child_insert_fork_catchpoint (int pid)
{
if (! linux_supports_tracefork (pid))
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 (_("Your system does not support fork catchpoints."));
}
static void
linux_child_insert_vfork_catchpoint (int pid)
{
if (!linux_supports_tracefork (pid))
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 (_("Your system does not support vfork catchpoints."));
}
static void
linux_child_insert_exec_catchpoint (int pid)
{
if (!linux_supports_tracefork (pid))
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 (_("Your system does not support exec catchpoints."));
}
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
/* On GNU/Linux there are no real LWP's. The closest thing to LWP's
are processes sharing the same VM space. A multi-threaded process
is basically a group of such processes. However, such a grouping
is almost entirely a user-space issue; the kernel doesn't enforce
such a grouping at all (this might change in the future). In
general, we'll rely on the threads library (i.e. the GNU/Linux
Threads library) to provide such a grouping.
It is perfectly well possible to write a multi-threaded application
without the assistance of a threads library, by using the clone
system call directly. This module should be able to give some
rudimentary support for debugging such applications if developers
specify the CLONE_PTRACE flag in the clone system call, and are
using the Linux kernel 2.4 or above.
Note that there are some peculiarities in GNU/Linux that affect
this code:
- In general one should specify the __WCLONE flag to waitpid in
order to make it report events for any of the cloned processes
(and leave it out for the initial process). However, if a cloned
process has exited the exit status is only reported if the
__WCLONE flag is absent. Linux kernel 2.4 has a __WALL flag, but
we cannot use it since GDB must work on older systems too.
- When a traced, cloned process exits and is waited for by the
debugger, the kernel reassigns it to the original parent and
keeps it around as a "zombie". Somehow, the GNU/Linux Threads
library doesn't notice this, which leads to the "zombie problem":
When debugged a multi-threaded process that spawns a lot of
threads will run out of processes, even if the threads exit,
because the "zombies" stay around. */
/* List of known LWPs. */
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
struct lwp_info *lwp_list;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
/* Number of LWPs in the list. */
static int num_lwps;
/* Original signal mask. */
static sigset_t normal_mask;
/* Signal mask for use with sigsuspend in linux_nat_wait, initialized in
_initialize_linux_nat. */
static sigset_t suspend_mask;
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
/* SIGCHLD action for synchronous mode. */
struct sigaction sync_sigchld_action;
/* SIGCHLD action for asynchronous mode. */
static struct sigaction async_sigchld_action;
/* SIGCHLD default action, to pass to new inferiors. */
static struct sigaction sigchld_default_action;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
/* Prototypes for local functions. */
static int stop_wait_callback (struct lwp_info *lp, void *data);
static int linux_nat_thread_alive (ptid_t ptid);
static char *linux_child_pid_to_exec_file (int pid);
static int cancel_breakpoint (struct lwp_info *lp);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
/* Convert wait status STATUS to a string. Used for printing debug
messages only. */
static char *
status_to_str (int status)
{
static char buf[64];
if (WIFSTOPPED (status))
snprintf (buf, sizeof (buf), "%s (stopped)",
strsignal (WSTOPSIG (status)));
else if (WIFSIGNALED (status))
snprintf (buf, sizeof (buf), "%s (terminated)",
strsignal (WSTOPSIG (status)));
else
snprintf (buf, sizeof (buf), "%d (exited)", WEXITSTATUS (status));
return buf;
}
/* Initialize the list of LWPs. Note that this module, contrary to
what GDB's generic threads layer does for its thread list,
re-initializes the LWP lists whenever we mourn or detach (which
doesn't involve mourning) the inferior. */
static void
init_lwp_list (void)
{
struct lwp_info *lp, *lpnext;
for (lp = lwp_list; lp; lp = lpnext)
{
lpnext = lp->next;
xfree (lp);
}
lwp_list = NULL;
num_lwps = 0;
}
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
/* Add the LWP specified by PID to the list. Return a pointer to the
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
structure describing the new LWP. The LWP should already be stopped
(with an exception for the very first LWP). */
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
static struct lwp_info *
add_lwp (ptid_t ptid)
{
struct lwp_info *lp;
gdb_assert (is_lwp (ptid));
lp = (struct lwp_info *) xmalloc (sizeof (struct lwp_info));
memset (lp, 0, sizeof (struct lwp_info));
lp->waitstatus.kind = TARGET_WAITKIND_IGNORE;
lp->ptid = ptid;
lp->next = lwp_list;
lwp_list = lp;
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
++num_lwps;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
if (num_lwps > 1 && linux_nat_new_thread != NULL)
linux_nat_new_thread (ptid);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
return lp;
}
/* Remove the LWP specified by PID from the list. */
static void
delete_lwp (ptid_t ptid)
{
struct lwp_info *lp, *lpprev;
lpprev = NULL;
for (lp = lwp_list; lp; lpprev = lp, lp = lp->next)
if (ptid_equal (lp->ptid, ptid))
break;
if (!lp)
return;
num_lwps--;
if (lpprev)
lpprev->next = lp->next;
else
lwp_list = lp->next;
xfree (lp);
}
/* Return a pointer to the structure describing the LWP corresponding
to PID. If no corresponding LWP could be found, return NULL. */
static struct lwp_info *
find_lwp_pid (ptid_t ptid)
{
struct lwp_info *lp;
int lwp;
if (is_lwp (ptid))
lwp = GET_LWP (ptid);
else
lwp = GET_PID (ptid);
for (lp = lwp_list; lp; lp = lp->next)
if (lwp == GET_LWP (lp->ptid))
return lp;
return NULL;
}
/* Call CALLBACK with its second argument set to DATA for every LWP in
the list. If CALLBACK returns 1 for a particular LWP, return a
pointer to the structure describing that LWP immediately.
Otherwise return NULL. */
struct lwp_info *
iterate_over_lwps (int (*callback) (struct lwp_info *, void *), void *data)
{
struct lwp_info *lp, *lpnext;
for (lp = lwp_list; lp; lp = lpnext)
{
lpnext = lp->next;
if ((*callback) (lp, data))
return lp;
}
return NULL;
}
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
/* Update our internal state when changing from one fork (checkpoint,
et cetera) to another indicated by NEW_PTID. We can only switch
single-threaded applications, so we only create one new LWP, and
the previous list is discarded. */
void
linux_nat_switch_fork (ptid_t new_ptid)
{
struct lwp_info *lp;
init_lwp_list ();
lp = add_lwp (new_ptid);
lp->stopped = 1;
Exited threads. * thread.c (enum thread_state): New. (thread_state main_thread_running): Delete, in favor of... (thread_state main_thread_state): ... this. Update throughout. (clear_thread_inferior_resources): New, split from free_thread. (free_thread): Call clear_thread_inferior_resources. (init_thread_list): Set main thread to stopped state. (add_thread_silent): Take care of PTID reuses. (delete_thread): If deleting inferior_ptid or a thread with refcount > 0, mark it as exited, but still keep it in the list. Only notify of thread exits, if we haven't done so yet. (iterate_over_threads): Make it safe to delete threads while iterating over them. (do_captured_list_thread_ids): Don't account for exited threads. (thread_alive): Check for the THREAD_EXITED state, and don't set ptid to -1 on exited threads. (set_running): Update to account for extra possible states. (is_thread_state): New. (is_stopped, is_exited): New. (is_running): Implement in terms of is_thread_state. (any_running): Update. (print_thread_info): Update. Account for exited threads. Don't warn about missed frame restoring here, its done in the cleanup. (switch_to_thread): Don't read from a thread that has gone. (restore_current_thread): In non-stop mode, do a full context switch. (restore_selected_frame): Add a frame_level argument. Rewrite. (struct current_thread_cleanup): Add selected_frame_level and was_stopped members. (do_restore_current_thread_cleanup): Check if thread was stopped and still is, and if the target has registers, stack and memory before restoring the selected frame. Don't delete the cleanup argument here. (restore_current_thread_cleanup_dtor): New. (make_cleanup_restore_current_thread): Remove all arguments. Rewrite. (thread_apply_all_command): Update. Prune threads. (thread_apply_command): Update. (thread_command): Account for currently selected exited thread. (do_captured_thread_select): Check for a running thread. Prune threads. (_initialize_thread): Make "info threads", "thread", "thread apply", and "thread apply all" appliable without a selected thread. * gdbthread.h (struct thread_info): Replace running_ by state_. Add refcount. (is_exited, is_stopped): Declare. (make_cleanup_restore_current_thread): Remove all arguments. * infrun.c: Include "event-top.h". (fetch_inferior_event): In non-stop mode, restore selected thread and frame after handling the event and running breakpoint commands. Display GDB prompt if needed. (normal_stop): In non-stop mode, don't print thread switching notice. * cli/cli-decode.c (set_cmd_no_selected_thread_ok) (get_cmd_no_selected_thread_ok): New. * cli/cli-decode.h (CMD_NO_SELECTED_THREAD_OK): New. (set_cmd_no_selected_thread_ok, get_cmd_no_selected_thread_ok): Declare. * cli/cli-cmds.c: Set "pwd", "help", "info", "show" as no-selected-thread ok. * top.c (execute_command): Check for non no-selected-thread-ok commands. * linux-nat.c (struct saved_ptids, threads_to_delete) (record_dead_thread, prune_lwps): Delete. (exit_lwp): Unconditionally delete thread. (linux_nat_resume): Remove prune_lwps call. * infcmd.c (proceed_thread_callback): Check if !is_stopped instead of is_running. Adjust to make_cleanup_restore_current_thread interface change. * mi/mi-main.c (mi_cmd_execute): Only allow a few commands if the selected thread has exited. * inf-loop.c (inferior_event_handler): Don't display the prompt here. * varobj.c (c_value_of_root): Update. * defs.h (make_cleanup_dtor): Declare. * utils.c (make_cleanup_dtor): New. * Makefile.in (infrun.o): Depend on $(event_top_h).
2008-07-11 13:07:39 +02:00
init_thread_list ();
add_thread_silent (new_ptid);
}
/* Handle the exit of a single thread LP. */
static void
exit_lwp (struct lwp_info *lp)
{
struct thread_info *th = find_thread_pid (lp->ptid);
if (th)
{
2008-03-21 Daniel Jacobowitz <dan@codesourcery.com> * 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.
2008-03-21 16:44:53 +01:00
if (print_thread_events)
printf_unfiltered (_("[%s exited]\n"), target_pid_to_str (lp->ptid));
Exited threads. * thread.c (enum thread_state): New. (thread_state main_thread_running): Delete, in favor of... (thread_state main_thread_state): ... this. Update throughout. (clear_thread_inferior_resources): New, split from free_thread. (free_thread): Call clear_thread_inferior_resources. (init_thread_list): Set main thread to stopped state. (add_thread_silent): Take care of PTID reuses. (delete_thread): If deleting inferior_ptid or a thread with refcount > 0, mark it as exited, but still keep it in the list. Only notify of thread exits, if we haven't done so yet. (iterate_over_threads): Make it safe to delete threads while iterating over them. (do_captured_list_thread_ids): Don't account for exited threads. (thread_alive): Check for the THREAD_EXITED state, and don't set ptid to -1 on exited threads. (set_running): Update to account for extra possible states. (is_thread_state): New. (is_stopped, is_exited): New. (is_running): Implement in terms of is_thread_state. (any_running): Update. (print_thread_info): Update. Account for exited threads. Don't warn about missed frame restoring here, its done in the cleanup. (switch_to_thread): Don't read from a thread that has gone. (restore_current_thread): In non-stop mode, do a full context switch. (restore_selected_frame): Add a frame_level argument. Rewrite. (struct current_thread_cleanup): Add selected_frame_level and was_stopped members. (do_restore_current_thread_cleanup): Check if thread was stopped and still is, and if the target has registers, stack and memory before restoring the selected frame. Don't delete the cleanup argument here. (restore_current_thread_cleanup_dtor): New. (make_cleanup_restore_current_thread): Remove all arguments. Rewrite. (thread_apply_all_command): Update. Prune threads. (thread_apply_command): Update. (thread_command): Account for currently selected exited thread. (do_captured_thread_select): Check for a running thread. Prune threads. (_initialize_thread): Make "info threads", "thread", "thread apply", and "thread apply all" appliable without a selected thread. * gdbthread.h (struct thread_info): Replace running_ by state_. Add refcount. (is_exited, is_stopped): Declare. (make_cleanup_restore_current_thread): Remove all arguments. * infrun.c: Include "event-top.h". (fetch_inferior_event): In non-stop mode, restore selected thread and frame after handling the event and running breakpoint commands. Display GDB prompt if needed. (normal_stop): In non-stop mode, don't print thread switching notice. * cli/cli-decode.c (set_cmd_no_selected_thread_ok) (get_cmd_no_selected_thread_ok): New. * cli/cli-decode.h (CMD_NO_SELECTED_THREAD_OK): New. (set_cmd_no_selected_thread_ok, get_cmd_no_selected_thread_ok): Declare. * cli/cli-cmds.c: Set "pwd", "help", "info", "show" as no-selected-thread ok. * top.c (execute_command): Check for non no-selected-thread-ok commands. * linux-nat.c (struct saved_ptids, threads_to_delete) (record_dead_thread, prune_lwps): Delete. (exit_lwp): Unconditionally delete thread. (linux_nat_resume): Remove prune_lwps call. * infcmd.c (proceed_thread_callback): Check if !is_stopped instead of is_running. Adjust to make_cleanup_restore_current_thread interface change. * mi/mi-main.c (mi_cmd_execute): Only allow a few commands if the selected thread has exited. * inf-loop.c (inferior_event_handler): Don't display the prompt here. * varobj.c (c_value_of_root): Update. * defs.h (make_cleanup_dtor): Declare. * utils.c (make_cleanup_dtor): New. * Makefile.in (infrun.o): Depend on $(event_top_h).
2008-07-11 13:07:39 +02:00
delete_thread (lp->ptid);
}
delete_lwp (lp->ptid);
}
/* Detect `T (stopped)' in `/proc/PID/status'.
Other states including `T (tracing stop)' are reported as false. */
static int
pid_is_stopped (pid_t pid)
{
FILE *status_file;
char buf[100];
int retval = 0;
snprintf (buf, sizeof (buf), "/proc/%d/status", (int) pid);
status_file = fopen (buf, "r");
if (status_file != NULL)
{
int have_state = 0;
while (fgets (buf, sizeof (buf), status_file))
{
if (strncmp (buf, "State:", 6) == 0)
{
have_state = 1;
break;
}
}
if (have_state && strstr (buf, "T (stopped)") != NULL)
retval = 1;
fclose (status_file);
}
return retval;
}
/* Wait for the LWP specified by LP, which we have just attached to.
Returns a wait status for that LWP, to cache. */
static int
linux_nat_post_attach_wait (ptid_t ptid, int first, int *cloned,
int *signalled)
{
pid_t new_pid, pid = GET_LWP (ptid);
int status;
if (pid_is_stopped (pid))
{
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LNPAW: Attaching to a stopped process\n");
/* The process is definitely stopped. It is in a job control
stop, unless the kernel predates the TASK_STOPPED /
TASK_TRACED distinction, in which case it might be in a
ptrace stop. Make sure it is in a ptrace stop; from there we
can kill it, signal it, et cetera.
First make sure there is a pending SIGSTOP. Since we are
already attached, the process can not transition from stopped
to running without a PTRACE_CONT; so we know this signal will
go into the queue. The SIGSTOP generated by PTRACE_ATTACH is
probably already in the queue (unless this kernel is old
enough to use TASK_STOPPED for ptrace stops); but since SIGSTOP
is not an RT signal, it can only be queued once. */
kill_lwp (pid, SIGSTOP);
/* Finally, resume the stopped process. This will deliver the SIGSTOP
(or a higher priority signal, just like normal PTRACE_ATTACH). */
ptrace (PTRACE_CONT, pid, 0, 0);
}
/* Make sure the initial process is stopped. The user-level threads
layer might want to poke around in the inferior, and that won't
work if things haven't stabilized yet. */
new_pid = my_waitpid (pid, &status, 0);
if (new_pid == -1 && errno == ECHILD)
{
if (first)
warning (_("%s is a cloned process"), target_pid_to_str (ptid));
/* Try again with __WCLONE to check cloned processes. */
new_pid = my_waitpid (pid, &status, __WCLONE);
*cloned = 1;
}
gdb_assert (pid == new_pid && WIFSTOPPED (status));
if (WSTOPSIG (status) != SIGSTOP)
{
*signalled = 1;
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LNPAW: Received %s after attaching\n",
status_to_str (status));
}
return status;
}
/* Attach to the LWP specified by PID. Return 0 if successful or -1
if the new LWP could not be attached. */
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
int
lin_lwp_attach_lwp (ptid_t ptid)
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
struct lwp_info *lp;
enum sigchld_state async_events_original_state;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
gdb_assert (is_lwp (ptid));
async_events_original_state = linux_nat_async_events (sigchld_sync);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
lp = find_lwp_pid (ptid);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
/* We assume that we're already attached to any LWP that has an id
equal to the overall process id, and to any LWP that is already
in our list of LWPs. If we're not seeing exit events from threads
and we've had PID wraparound since we last tried to stop all threads,
this assumption might be wrong; fortunately, this is very unlikely
to happen. */
if (GET_LWP (ptid) != GET_PID (ptid) && lp == NULL)
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
int status, cloned = 0, signalled = 0;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (ptrace (PTRACE_ATTACH, GET_LWP (ptid), 0, 0) < 0)
{
/* If we fail to attach to the thread, issue a warning,
but continue. One way this can happen is if thread
creation is interrupted; as of Linux kernel 2.6.19, a
bug may place threads in the thread list and then fail
to create them. */
warning (_("Can't attach %s: %s"), target_pid_to_str (ptid),
safe_strerror (errno));
return -1;
}
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LLAL: PTRACE_ATTACH %s, 0, 0 (OK)\n",
target_pid_to_str (ptid));
status = linux_nat_post_attach_wait (ptid, 0, &cloned, &signalled);
lp = add_lwp (ptid);
lp->stopped = 1;
lp->cloned = cloned;
lp->signalled = signalled;
if (WSTOPSIG (status) != SIGSTOP)
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
lp->resumed = 1;
lp->status = status;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
target_post_attach (GET_LWP (lp->ptid));
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (debug_linux_nat)
{
fprintf_unfiltered (gdb_stdlog,
"LLAL: waitpid %s received %s\n",
target_pid_to_str (ptid),
status_to_str (status));
}
}
else
{
/* We assume that the LWP representing the original process is
already stopped. Mark it as stopped in the data structure
that the GNU/linux ptrace layer uses to keep track of
threads. Note that this won't have already been done since
the main thread will have, we assume, been stopped by an
attach from a different layer. */
if (lp == NULL)
lp = add_lwp (ptid);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
lp->stopped = 1;
}
linux_nat_async_events (async_events_original_state);
return 0;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
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
static void
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
linux_nat_create_inferior (struct target_ops *ops,
char *exec_file, char *allargs, char **env,
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
int from_tty)
{
int saved_async = 0;
#ifdef HAVE_PERSONALITY
int personality_orig = 0, personality_set = 0;
#endif /* HAVE_PERSONALITY */
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
/* The fork_child mechanism is synchronous and calls target_wait, so
we have to mask the async mode. */
if (target_can_async_p ())
/* Mask async mode. Creating a child requires a loop calling
wait_for_inferior currently. */
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
saved_async = linux_nat_async_mask (0);
else
{
/* Restore the original signal mask. */
sigprocmask (SIG_SETMASK, &normal_mask, NULL);
/* Make sure we don't block SIGCHLD during a sigsuspend. */
suspend_mask = normal_mask;
sigdelset (&suspend_mask, SIGCHLD);
}
/* Set SIGCHLD to the default action, until after execing the child,
since the inferior inherits the superior's signal mask. It will
be blocked again in linux_nat_wait, which is only reached after
the inferior execing. */
linux_nat_async_events (sigchld_default);
#ifdef HAVE_PERSONALITY
if (disable_randomization)
{
errno = 0;
personality_orig = personality (0xffffffff);
if (errno == 0 && !(personality_orig & ADDR_NO_RANDOMIZE))
{
personality_set = 1;
personality (personality_orig | ADDR_NO_RANDOMIZE);
}
if (errno != 0 || (personality_set
&& !(personality (0xffffffff) & ADDR_NO_RANDOMIZE)))
warning (_("Error disabling address space randomization: %s"),
safe_strerror (errno));
}
#endif /* HAVE_PERSONALITY */
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
linux_ops->to_create_inferior (ops, exec_file, allargs, env, from_tty);
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
#ifdef HAVE_PERSONALITY
if (personality_set)
{
errno = 0;
personality (personality_orig);
if (errno != 0)
warning (_("Error restoring address space randomization: %s"),
safe_strerror (errno));
}
#endif /* HAVE_PERSONALITY */
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
if (saved_async)
linux_nat_async_mask (saved_async);
}
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
static void
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
linux_nat_attach (struct target_ops *ops, char *args, int from_tty)
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
struct lwp_info *lp;
int status;
ptid_t ptid;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
/* FIXME: We should probably accept a list of process id's, and
attach all of them. */
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
linux_ops->to_attach (ops, args, from_tty);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
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
if (!target_can_async_p ())
{
/* Restore the original signal mask. */
sigprocmask (SIG_SETMASK, &normal_mask, NULL);
/* Make sure we don't block SIGCHLD during a sigsuspend. */
suspend_mask = normal_mask;
sigdelset (&suspend_mask, SIGCHLD);
}
/* The ptrace base target adds the main thread with (pid,0,0)
format. Decorate it with lwp info. */
ptid = BUILD_LWP (GET_PID (inferior_ptid), GET_PID (inferior_ptid));
thread_change_ptid (inferior_ptid, ptid);
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
/* Add the initial process as the first LWP to the list. */
lp = add_lwp (ptid);
status = linux_nat_post_attach_wait (lp->ptid, 1, &lp->cloned,
&lp->signalled);
lp->stopped = 1;
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
/* Save the wait status to report later. */
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
lp->resumed = 1;
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LNA: waitpid %ld, saving status %s\n",
(long) GET_PID (lp->ptid), status_to_str (status));
if (!target_can_async_p ())
lp->status = status;
else
{
/* We already waited for this LWP, so put the wait result on the
pipe. The event loop will wake up and gets us to handling
this event. */
linux_nat_event_pipe_push (GET_PID (lp->ptid), status,
lp->cloned ? __WCLONE : 0);
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
/* Register in the event loop. */
target_async (inferior_event_handler, 0);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
}
/* Get pending status of LP. */
static int
get_pending_status (struct lwp_info *lp, int *status)
{
struct target_waitstatus last;
ptid_t last_ptid;
get_last_target_status (&last_ptid, &last);
/* If this lwp is the ptid that GDB is processing an event from, the
signal will be in stop_signal. Otherwise, in all-stop + sync
mode, we may cache pending events in lp->status while trying to
stop all threads (see stop_wait_callback). In async mode, the
events are always cached in waitpid_queue. */
*status = 0;
if (non_stop)
{
enum target_signal signo = TARGET_SIGNAL_0;
if (is_executing (lp->ptid))
{
/* If the core thought this lwp was executing --- e.g., the
executing property hasn't been updated yet, but the
thread has been stopped with a stop_callback /
stop_wait_callback sequence (see linux_nat_detach for
example) --- we can only have pending events in the local
queue. */
if (queued_waitpid (GET_LWP (lp->ptid), status, __WALL) != -1)
{
if (WIFSTOPPED (*status))
signo = target_signal_from_host (WSTOPSIG (*status));
/* If not stopped, then the lwp is gone, no use in
resending a signal. */
}
}
else
{
/* If the core knows the thread is not executing, then we
have the last signal recorded in
Remove the global stop_signal in favour of a per-thread stop_signal. * inferior.h (stop_signal): Delete. * gdbthread.h (save_infrun_state, load_infrun_state): Remove stop_signal argument. * thread.c (load_infrun_state, save_infrun_state): Remove stop_signal argument. Don't reference it. * infcmd.c (stop_signal): Delete. (program_info): Adjust. * infrun.c (resume): Clear stop_signal. (proceed): Adjust. Pass the last stop_signal to the thread we're resuming. (context_switch): Don't context-switch stop_signal. (handle_inferior_event, keep_going): Adjust. (save_inferior_status, restore_inferior_status): Adjust. * fbsd-nat.c: Include "gdbthread.h". (find_signalled_thread, find_stop_signal): New. (fbsd_make_corefile_notes): Use it. * fork-child.c (startup_inferior): Adjust. * linux-nat.c (get_pending_status): Adjust. (linux_nat_do_thread_registers): Adjust. (find_signalled_thread, find_stop_signal): New. (linux_nat_do_thread_registers): Add stop_signal parameter. (struct linux_nat_corefile_thread_data): Add stop_signal member. (linux_nat_corefile_thread_callback): Pass stop_signal. (linux_nat_do_registers): Delete. (linux_nat_make_corefile_notes): Use find_stop_signal. Assume there's always a thread. * procfs.c (find_signalled_thread, find_stop_signal): New. (find_stop_signal): New. (procfs_do_thread_registers): Add stop_signal parameter. (struct procfs_corefile_thread_data): Add stop_signal member. (procfs_corefile_thread_callback): Pass args->stop_signal. (procfs_make_note_section): Find the last stop_signal. * solib-irix.c: Include gdbthread.h. (irix_solib_create_inferior_hook): Adjust. * solib-osf.c: Include gdbthread.h. (osf_solib_create_inferior_hook): Adjust. * solib-sunos.c: Include gdbthread.h. (sunos_solib_create_inferior_hook): Adjust. * solib-svr4.c: Include gdbthread.h. (svr4_solib_create_inferior_hook): Adjust. * win32-nat.c (do_initial_win32_stuff): Adjust.
2008-09-08 23:51:18 +02:00
thread_info->stop_signal. */
Remove the global stop_signal in favour of a per-thread stop_signal. * inferior.h (stop_signal): Delete. * gdbthread.h (save_infrun_state, load_infrun_state): Remove stop_signal argument. * thread.c (load_infrun_state, save_infrun_state): Remove stop_signal argument. Don't reference it. * infcmd.c (stop_signal): Delete. (program_info): Adjust. * infrun.c (resume): Clear stop_signal. (proceed): Adjust. Pass the last stop_signal to the thread we're resuming. (context_switch): Don't context-switch stop_signal. (handle_inferior_event, keep_going): Adjust. (save_inferior_status, restore_inferior_status): Adjust. * fbsd-nat.c: Include "gdbthread.h". (find_signalled_thread, find_stop_signal): New. (fbsd_make_corefile_notes): Use it. * fork-child.c (startup_inferior): Adjust. * linux-nat.c (get_pending_status): Adjust. (linux_nat_do_thread_registers): Adjust. (find_signalled_thread, find_stop_signal): New. (linux_nat_do_thread_registers): Add stop_signal parameter. (struct linux_nat_corefile_thread_data): Add stop_signal member. (linux_nat_corefile_thread_callback): Pass stop_signal. (linux_nat_do_registers): Delete. (linux_nat_make_corefile_notes): Use find_stop_signal. Assume there's always a thread. * procfs.c (find_signalled_thread, find_stop_signal): New. (find_stop_signal): New. (procfs_do_thread_registers): Add stop_signal parameter. (struct procfs_corefile_thread_data): Add stop_signal member. (procfs_corefile_thread_callback): Pass args->stop_signal. (procfs_make_note_section): Find the last stop_signal. * solib-irix.c: Include gdbthread.h. (irix_solib_create_inferior_hook): Adjust. * solib-osf.c: Include gdbthread.h. (osf_solib_create_inferior_hook): Adjust. * solib-sunos.c: Include gdbthread.h. (sunos_solib_create_inferior_hook): Adjust. * solib-svr4.c: Include gdbthread.h. (svr4_solib_create_inferior_hook): Adjust. * win32-nat.c (do_initial_win32_stuff): Adjust.
2008-09-08 23:51:18 +02:00
struct thread_info *tp = find_thread_pid (lp->ptid);
signo = tp->stop_signal;
}
if (signo != TARGET_SIGNAL_0
&& !signal_pass_state (signo))
{
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog, "\
GPT: lwp %s had signal %s, but it is in no pass state\n",
target_pid_to_str (lp->ptid),
target_signal_to_string (signo));
}
else
{
if (signo != TARGET_SIGNAL_0)
*status = W_STOPCODE (target_signal_to_host (signo));
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"GPT: lwp %s as pending signal %s\n",
target_pid_to_str (lp->ptid),
target_signal_to_string (signo));
}
}
else
{
if (GET_LWP (lp->ptid) == GET_LWP (last_ptid))
{
Remove the global stop_signal in favour of a per-thread stop_signal. * inferior.h (stop_signal): Delete. * gdbthread.h (save_infrun_state, load_infrun_state): Remove stop_signal argument. * thread.c (load_infrun_state, save_infrun_state): Remove stop_signal argument. Don't reference it. * infcmd.c (stop_signal): Delete. (program_info): Adjust. * infrun.c (resume): Clear stop_signal. (proceed): Adjust. Pass the last stop_signal to the thread we're resuming. (context_switch): Don't context-switch stop_signal. (handle_inferior_event, keep_going): Adjust. (save_inferior_status, restore_inferior_status): Adjust. * fbsd-nat.c: Include "gdbthread.h". (find_signalled_thread, find_stop_signal): New. (fbsd_make_corefile_notes): Use it. * fork-child.c (startup_inferior): Adjust. * linux-nat.c (get_pending_status): Adjust. (linux_nat_do_thread_registers): Adjust. (find_signalled_thread, find_stop_signal): New. (linux_nat_do_thread_registers): Add stop_signal parameter. (struct linux_nat_corefile_thread_data): Add stop_signal member. (linux_nat_corefile_thread_callback): Pass stop_signal. (linux_nat_do_registers): Delete. (linux_nat_make_corefile_notes): Use find_stop_signal. Assume there's always a thread. * procfs.c (find_signalled_thread, find_stop_signal): New. (find_stop_signal): New. (procfs_do_thread_registers): Add stop_signal parameter. (struct procfs_corefile_thread_data): Add stop_signal member. (procfs_corefile_thread_callback): Pass args->stop_signal. (procfs_make_note_section): Find the last stop_signal. * solib-irix.c: Include gdbthread.h. (irix_solib_create_inferior_hook): Adjust. * solib-osf.c: Include gdbthread.h. (osf_solib_create_inferior_hook): Adjust. * solib-sunos.c: Include gdbthread.h. (sunos_solib_create_inferior_hook): Adjust. * solib-svr4.c: Include gdbthread.h. (svr4_solib_create_inferior_hook): Adjust. * win32-nat.c (do_initial_win32_stuff): Adjust.
2008-09-08 23:51:18 +02:00
struct thread_info *tp = find_thread_pid (lp->ptid);
if (tp->stop_signal != TARGET_SIGNAL_0
&& signal_pass_state (tp->stop_signal))
*status = W_STOPCODE (target_signal_to_host (tp->stop_signal));
}
else if (target_can_async_p ())
queued_waitpid (GET_LWP (lp->ptid), status, __WALL);
else
*status = lp->status;
}
return 0;
}
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
static int
detach_callback (struct lwp_info *lp, void *data)
{
gdb_assert (lp->status == 0 || WIFSTOPPED (lp->status));
if (debug_linux_nat && lp->status)
fprintf_unfiltered (gdb_stdlog, "DC: Pending %s for %s on detach.\n",
strsignal (WSTOPSIG (lp->status)),
target_pid_to_str (lp->ptid));
/* If there is a pending SIGSTOP, get rid of it. */
if (lp->signalled)
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"DC: Sending SIGCONT to %s\n",
target_pid_to_str (lp->ptid));
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
kill_lwp (GET_LWP (lp->ptid), SIGCONT);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
lp->signalled = 0;
}
/* We don't actually detach from the LWP that has an id equal to the
overall process id just yet. */
if (GET_LWP (lp->ptid) != GET_PID (lp->ptid))
{
int status = 0;
/* Pass on any pending signal for this LWP. */
get_pending_status (lp, &status);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
errno = 0;
if (ptrace (PTRACE_DETACH, GET_LWP (lp->ptid), 0,
WSTOPSIG (status)) < 0)
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 (_("Can't detach %s: %s"), target_pid_to_str (lp->ptid),
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
safe_strerror (errno));
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"PTRACE_DETACH (%s, %s, 0) (OK)\n",
target_pid_to_str (lp->ptid),
strsignal (WSTOPSIG (lp->status)));
delete_lwp (lp->ptid);
}
return 0;
}
static void
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
linux_nat_detach (struct target_ops *ops, char *args, int from_tty)
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
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
int pid;
int status;
enum target_signal sig;
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
if (target_can_async_p ())
linux_nat_async (NULL, 0);
/* Stop all threads before detaching. ptrace requires that the
thread is stopped to sucessfully detach. */
iterate_over_lwps (stop_callback, NULL);
/* ... and wait until all of them have reported back that
they're no longer running. */
iterate_over_lwps (stop_wait_callback, NULL);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
iterate_over_lwps (detach_callback, NULL);
/* Only the initial process should be left right now. */
gdb_assert (num_lwps == 1);
/* Pass on any pending signal for the last LWP. */
if ((args == NULL || *args == '\0')
&& get_pending_status (lwp_list, &status) != -1
&& WIFSTOPPED (status))
{
/* Put the signal number in ARGS so that inf_ptrace_detach will
pass it along with PTRACE_DETACH. */
args = alloca (8);
sprintf (args, "%d", (int) WSTOPSIG (status));
fprintf_unfiltered (gdb_stdlog,
"LND: Sending signal %s to %s\n",
args,
target_pid_to_str (lwp_list->ptid));
}
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
/* Destroy LWP info; it's no longer valid. */
init_lwp_list ();
pid = ptid_get_pid (inferior_ptid);
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
if (target_can_async_p ())
drain_queued_events (pid);
if (forks_exist_p ())
{
/* Multi-fork case. The current inferior_ptid is being detached
from, but there are other viable forks to debug. Detach from
the current fork, and context-switch to the first
available. */
linux_fork_detach (args, from_tty);
if (non_stop && target_can_async_p ())
target_async (inferior_event_handler, 0);
}
else
linux_ops->to_detach (ops, args, from_tty);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
/* Resume LP. */
static int
resume_callback (struct lwp_info *lp, void *data)
{
if (lp->stopped && lp->status == 0)
{
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
linux_ops->to_resume (pid_to_ptid (GET_LWP (lp->ptid)),
0, TARGET_SIGNAL_0);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"RC: PTRACE_CONT %s, 0, 0 (resume sibling)\n",
target_pid_to_str (lp->ptid));
lp->stopped = 0;
lp->step = 0;
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
memset (&lp->siginfo, 0, sizeof (lp->siginfo));
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
else if (lp->stopped && debug_linux_nat)
fprintf_unfiltered (gdb_stdlog, "RC: Not resuming sibling %s (has pending)\n",
target_pid_to_str (lp->ptid));
else if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog, "RC: Not resuming sibling %s (not stopped)\n",
target_pid_to_str (lp->ptid));
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
return 0;
}
static int
resume_clear_callback (struct lwp_info *lp, void *data)
{
lp->resumed = 0;
return 0;
}
static int
resume_set_callback (struct lwp_info *lp, void *data)
{
lp->resumed = 1;
return 0;
}
static void
linux_nat_resume (ptid_t ptid, int step, enum target_signal signo)
{
struct lwp_info *lp;
int resume_all;
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LLR: Preparing to %s %s, %s, inferior_ptid %s\n",
step ? "step" : "resume",
target_pid_to_str (ptid),
signo ? strsignal (signo) : "0",
target_pid_to_str (inferior_ptid));
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
if (target_can_async_p ())
/* Block events while we're here. */
linux_nat_async_events (sigchld_sync);
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
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
/* A specific PTID means `step only this process id'. */
resume_all = (PIDGET (ptid) == -1);
if (non_stop && resume_all)
internal_error (__FILE__, __LINE__,
"can't resume all in non-stop mode");
if (!non_stop)
{
if (resume_all)
iterate_over_lwps (resume_set_callback, NULL);
else
iterate_over_lwps (resume_clear_callback, NULL);
}
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
/* If PID is -1, it's the current inferior that should be
handled specially. */
if (PIDGET (ptid) == -1)
ptid = inferior_ptid;
lp = find_lwp_pid (ptid);
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
gdb_assert (lp != NULL);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
/* Convert to something the lower layer understands. */
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
ptid = pid_to_ptid (GET_LWP (lp->ptid));
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
/* Remember if we're stepping. */
lp->step = step;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
/* Mark this LWP as resumed. */
lp->resumed = 1;
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
/* If we have a pending wait status for this thread, there is no
point in resuming the process. But first make sure that
linux_nat_wait won't preemptively handle the event - we
should never take this short-circuit if we are going to
leave LP running, since we have skipped resuming all the
other threads. This bit of code needs to be synchronized
with linux_nat_wait. */
/* In async mode, we never have pending wait status. */
if (target_can_async_p () && lp->status)
internal_error (__FILE__, __LINE__, "Pending status in async mode");
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
if (lp->status && WIFSTOPPED (lp->status))
{
int saved_signo;
struct inferior *inf;
inf = find_inferior_pid (ptid_get_pid (ptid));
gdb_assert (inf);
saved_signo = target_signal_from_host (WSTOPSIG (lp->status));
/* Defer to common code if we're gaining control of the
inferior. */
if (inf->stop_soon == NO_STOP_QUIETLY
&& signal_stop_state (saved_signo) == 0
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
&& signal_print_state (saved_signo) == 0
&& signal_pass_state (saved_signo) == 1)
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LLR: Not short circuiting for ignored "
"status 0x%x\n", lp->status);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
/* FIXME: What should we do if we are supposed to continue
this thread with a signal? */
gdb_assert (signo == TARGET_SIGNAL_0);
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
signo = saved_signo;
lp->status = 0;
}
}
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
if (lp->status)
{
/* FIXME: What should we do if we are supposed to continue
this thread with a signal? */
gdb_assert (signo == TARGET_SIGNAL_0);
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LLR: Short circuiting for status 0x%x\n",
lp->status);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
return;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
/* Mark LWP as not stopped to prevent it from being continued by
resume_callback. */
lp->stopped = 0;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (resume_all)
iterate_over_lwps (resume_callback, NULL);
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
linux_ops->to_resume (ptid, step, signo);
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
memset (&lp->siginfo, 0, sizeof (lp->siginfo));
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LLR: %s %s, %s (resume event thread)\n",
step ? "PTRACE_SINGLESTEP" : "PTRACE_CONT",
target_pid_to_str (ptid),
signo ? strsignal (signo) : "0");
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
if (target_can_async_p ())
Add "executing" property to threads. * inferior.h (target_executing): Delete. * gdbthread.h (struct thread_info): Add executing_ field. (set_executing, is_executing): New. * thread.c (main_thread_executing): New. (init_thread_list): Clear it and also main_thread_running. (is_running): Return false if target has no execution. (any_running, is_executing, set_executing): New. * top.c: Include "gdbthread.h". (target_executing): Delete. (execute_command): Replace target_executing check by any_running. * event-top.c: Include "gdbthread.h". (display_gdb_prompt, command_handler): Replace target_executing by is_running. * inf-loop.c: Include "gdbthread.h". Don't mark as not executing here. Replace target_executing by is_running. * infrun.c (handle_inferior_event): Mark all threads as not-executing. * linux-nat.c (linux_nat_resume): Don't mark thread as executing here. * stack.c (get_selected_block): Return null if inferior is executing. * target.c (target_resume): Mark resumed ptid as executing. * breakpoint.c (until_break_command): Replace target_executing check by is_executing. * remote.c (remote_async_resume): Don't mark inferior as executing here. * mi/mi-interp.c (mi_cmd_interpreter_exec): Replace target_executing by any_running. * mi/mi-main.c (mi_cmd_exec_interrupt, mi_cmd_execute) (mi_execute_async_cli_command): Replace target_executing by is_running. * frame.c (get_current_frame): Error out if the current thread is executing. (has_stack_frames): New. (get_selected_frame, deprecated_safe_get_selected_frame): Check has_stack_frames. * Makefile.in (event-top.o, frame.o, inf-loop.o, top.o): Depend on $(gdbthread_h).
2008-07-10 00:16:15 +02:00
target_async (inferior_event_handler, 0);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
/* Issue kill to specified lwp. */
static int tkill_failed;
static int
kill_lwp (int lwpid, int signo)
{
errno = 0;
/* Use tkill, if possible, in case we are using nptl threads. If tkill
fails, then we are not using nptl threads and we should be using kill. */
#ifdef HAVE_TKILL_SYSCALL
if (!tkill_failed)
{
int ret = syscall (__NR_tkill, lwpid, signo);
if (errno != ENOSYS)
return ret;
errno = 0;
tkill_failed = 1;
}
#endif
return kill (lwpid, signo);
}
/* Handle a GNU/Linux extended wait response. If we see a clone
event, we need to add the new LWP to our list (and not report the
trap to higher layers). This function returns non-zero if the
event should be ignored and we should wait again. If STOPPING is
true, the new LWP remains stopped, otherwise it is continued. */
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
static int
linux_handle_extended_wait (struct lwp_info *lp, int status,
int stopping)
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
int pid = GET_LWP (lp->ptid);
struct target_waitstatus *ourstatus = &lp->waitstatus;
struct lwp_info *new_lp = NULL;
int event = status >> 16;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (event == PTRACE_EVENT_FORK || event == PTRACE_EVENT_VFORK
|| event == PTRACE_EVENT_CLONE)
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
unsigned long new_pid;
int ret;
ptrace (PTRACE_GETEVENTMSG, pid, 0, &new_pid);
/* If we haven't already seen the new PID stop, wait for it now. */
if (! pull_pid_from_list (&stopped_pids, new_pid, &status))
{
/* The new child has a pending SIGSTOP. We can't affect it until it
hits the SIGSTOP, but we're already attached. */
ret = my_waitpid (new_pid, &status,
(event == PTRACE_EVENT_CLONE) ? __WCLONE : 0);
if (ret == -1)
perror_with_name (_("waiting for new child"));
else if (ret != new_pid)
internal_error (__FILE__, __LINE__,
_("wait returned unexpected PID %d"), ret);
else if (!WIFSTOPPED (status))
internal_error (__FILE__, __LINE__,
_("wait returned unexpected status 0x%x"), status);
}
ourstatus->value.related_pid = ptid_build (new_pid, new_pid, 0);
if (event == PTRACE_EVENT_FORK)
ourstatus->kind = TARGET_WAITKIND_FORKED;
else if (event == PTRACE_EVENT_VFORK)
ourstatus->kind = TARGET_WAITKIND_VFORKED;
else
{
struct cleanup *old_chain;
ourstatus->kind = TARGET_WAITKIND_IGNORE;
new_lp = add_lwp (BUILD_LWP (new_pid, GET_PID (inferior_ptid)));
new_lp->cloned = 1;
new_lp->stopped = 1;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (WSTOPSIG (status) != SIGSTOP)
{
/* This can happen if someone starts sending signals to
the new thread before it gets a chance to run, which
have a lower number than SIGSTOP (e.g. SIGUSR1).
This is an unlikely case, and harder to handle for
fork / vfork than for clone, so we do not try - but
we handle it for clone events here. We'll send
the other signal on to the thread below. */
new_lp->signalled = 1;
}
else
status = 0;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (non_stop)
{
/* Add the new thread to GDB's lists as soon as possible
so that:
1) the frontend doesn't have to wait for a stop to
display them, and,
2) we tag it with the correct running state. */
/* If the thread_db layer is active, let it know about
this new thread, and add it to GDB's list. */
if (!thread_db_attach_lwp (new_lp->ptid))
{
/* We're not using thread_db. Add it to GDB's
list. */
target_post_attach (GET_LWP (new_lp->ptid));
add_thread (new_lp->ptid);
}
if (!stopping)
{
set_running (new_lp->ptid, 1);
set_executing (new_lp->ptid, 1);
}
}
if (!stopping)
{
new_lp->stopped = 0;
new_lp->resumed = 1;
ptrace (PTRACE_CONT, new_pid, 0,
status ? WSTOPSIG (status) : 0);
}
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LHEW: Got clone event from LWP %ld, resuming\n",
GET_LWP (lp->ptid));
ptrace (PTRACE_CONT, GET_LWP (lp->ptid), 0, 0);
return 1;
}
return 0;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
if (event == PTRACE_EVENT_EXEC)
{
ourstatus->kind = TARGET_WAITKIND_EXECD;
ourstatus->value.execd_pathname
= xstrdup (linux_child_pid_to_exec_file (pid));
if (linux_parent_pid)
{
detach_breakpoints (linux_parent_pid);
ptrace (PTRACE_DETACH, linux_parent_pid, 0, 0);
linux_parent_pid = 0;
}
/* At this point, all inserted breakpoints are gone. Doing this
as soon as we detect an exec prevents the badness of deleting
a breakpoint writing the current "shadow contents" to lift
the bp. That shadow is NOT valid after an exec.
Note that we have to do this after the detach_breakpoints
call above, otherwise breakpoints wouldn't be lifted from the
parent on a vfork, because detach_breakpoints would think
that breakpoints are not inserted. */
mark_breakpoints_out ();
return 0;
}
internal_error (__FILE__, __LINE__,
_("unknown ptrace event %d"), event);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
/* Wait for LP to stop. Returns the wait status, or 0 if the LWP has
exited. */
static int
wait_lwp (struct lwp_info *lp)
{
pid_t pid;
int status;
int thread_dead = 0;
gdb_assert (!lp->stopped);
gdb_assert (lp->status == 0);
pid = my_waitpid (GET_LWP (lp->ptid), &status, 0);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (pid == -1 && errno == ECHILD)
{
pid = my_waitpid (GET_LWP (lp->ptid), &status, __WCLONE);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (pid == -1 && errno == ECHILD)
{
/* The thread has previously exited. We need to delete it
now because, for some vendor 2.4 kernels with NPTL
support backported, there won't be an exit event unless
it is the main thread. 2.6 kernels will report an exit
event for each thread that exits, as expected. */
thread_dead = 1;
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog, "WL: %s vanished.\n",
target_pid_to_str (lp->ptid));
}
}
if (!thread_dead)
{
gdb_assert (pid == GET_LWP (lp->ptid));
if (debug_linux_nat)
{
fprintf_unfiltered (gdb_stdlog,
"WL: waitpid %s received %s\n",
target_pid_to_str (lp->ptid),
status_to_str (status));
}
}
/* Check if the thread has exited. */
if (WIFEXITED (status) || WIFSIGNALED (status))
{
thread_dead = 1;
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog, "WL: %s exited.\n",
target_pid_to_str (lp->ptid));
}
if (thread_dead)
{
exit_lwp (lp);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
return 0;
}
gdb_assert (WIFSTOPPED (status));
/* Handle GNU/Linux's extended waitstatus for trace events. */
if (WIFSTOPPED (status) && WSTOPSIG (status) == SIGTRAP && status >> 16 != 0)
{
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"WL: Handling extended status 0x%06x\n",
status);
if (linux_handle_extended_wait (lp, status, 1))
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
return wait_lwp (lp);
}
return status;
}
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
/* Save the most recent siginfo for LP. This is currently only called
for SIGTRAP; some ports use the si_addr field for
target_stopped_data_address. In the future, it may also be used to
restore the siginfo of requeued signals. */
static void
save_siginfo (struct lwp_info *lp)
{
errno = 0;
ptrace (PTRACE_GETSIGINFO, GET_LWP (lp->ptid),
(PTRACE_TYPE_ARG3) 0, &lp->siginfo);
if (errno != 0)
memset (&lp->siginfo, 0, sizeof (lp->siginfo));
}
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
/* Send a SIGSTOP to LP. */
static int
stop_callback (struct lwp_info *lp, void *data)
{
if (!lp->stopped && !lp->signalled)
{
int ret;
if (debug_linux_nat)
{
fprintf_unfiltered (gdb_stdlog,
"SC: kill %s **<SIGSTOP>**\n",
target_pid_to_str (lp->ptid));
}
errno = 0;
ret = kill_lwp (GET_LWP (lp->ptid), SIGSTOP);
if (debug_linux_nat)
{
fprintf_unfiltered (gdb_stdlog,
"SC: lwp kill %d %s\n",
ret,
errno ? safe_strerror (errno) : "ERRNO-OK");
}
lp->signalled = 1;
gdb_assert (lp->status == 0);
}
return 0;
}
/* Return non-zero if LWP PID has a pending SIGINT. */
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
static int
linux_nat_has_pending_sigint (int pid)
{
sigset_t pending, blocked, ignored;
int i;
linux_proc_pending_signals (pid, &pending, &blocked, &ignored);
if (sigismember (&pending, SIGINT)
&& !sigismember (&ignored, SIGINT))
return 1;
return 0;
}
/* Set a flag in LP indicating that we should ignore its next SIGINT. */
static int
set_ignore_sigint (struct lwp_info *lp, void *data)
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
/* If a thread has a pending SIGINT, consume it; otherwise, set a
flag to consume the next one. */
if (lp->stopped && lp->status != 0 && WIFSTOPPED (lp->status)
&& WSTOPSIG (lp->status) == SIGINT)
lp->status = 0;
else
lp->ignore_sigint = 1;
return 0;
}
/* If LP does not have a SIGINT pending, then clear the ignore_sigint flag.
This function is called after we know the LWP has stopped; if the LWP
stopped before the expected SIGINT was delivered, then it will never have
arrived. Also, if the signal was delivered to a shared queue and consumed
by a different thread, it will never be delivered to this LWP. */
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
static void
maybe_clear_ignore_sigint (struct lwp_info *lp)
{
if (!lp->ignore_sigint)
return;
if (!linux_nat_has_pending_sigint (GET_LWP (lp->ptid)))
{
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"MCIS: Clearing bogus flag for %s\n",
target_pid_to_str (lp->ptid));
lp->ignore_sigint = 0;
}
}
/* Wait until LP is stopped. */
static int
stop_wait_callback (struct lwp_info *lp, void *data)
{
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (!lp->stopped)
{
int status;
status = wait_lwp (lp);
if (status == 0)
return 0;
if (lp->ignore_sigint && WIFSTOPPED (status)
&& WSTOPSIG (status) == SIGINT)
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
lp->ignore_sigint = 0;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
errno = 0;
ptrace (PTRACE_CONT, GET_LWP (lp->ptid), 0, 0);
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"PTRACE_CONT %s, 0, 0 (%s) (discarding SIGINT)\n",
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
target_pid_to_str (lp->ptid),
errno ? safe_strerror (errno) : "OK");
return stop_wait_callback (lp, NULL);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
maybe_clear_ignore_sigint (lp);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (WSTOPSIG (status) != SIGSTOP)
{
if (WSTOPSIG (status) == SIGTRAP)
{
/* If a LWP other than the LWP that we're reporting an
event for has hit a GDB breakpoint (as opposed to
some random trap signal), then just arrange for it to
hit it again later. We don't keep the SIGTRAP status
and don't forward the SIGTRAP signal to the LWP. We
will handle the current event, eventually we will
resume all LWPs, and this one will get its breakpoint
trap again.
If we do not do this, then we run the risk that the
user will delete or disable the breakpoint, but the
thread will have already tripped on it. */
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
/* Save the trap's siginfo in case we need it later. */
save_siginfo (lp);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
/* Now resume this LWP and get the SIGSTOP event. */
errno = 0;
ptrace (PTRACE_CONT, GET_LWP (lp->ptid), 0, 0);
if (debug_linux_nat)
{
fprintf_unfiltered (gdb_stdlog,
"PTRACE_CONT %s, 0, 0 (%s)\n",
target_pid_to_str (lp->ptid),
errno ? safe_strerror (errno) : "OK");
fprintf_unfiltered (gdb_stdlog,
"SWC: Candidate SIGTRAP event in %s\n",
target_pid_to_str (lp->ptid));
}
/* Hold this event/waitstatus while we check to see if
there are any more (we still want to get that SIGSTOP). */
stop_wait_callback (lp, NULL);
if (target_can_async_p ())
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
/* Don't leave a pending wait status in async mode.
Retrigger the breakpoint. */
if (!cancel_breakpoint (lp))
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
/* There was no gdb breakpoint set at pc. Put
the event back in the queue. */
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog, "\
SWC: leaving SIGTRAP in local queue of %s\n", target_pid_to_str (lp->ptid));
push_waitpid (GET_LWP (lp->ptid),
W_STOPCODE (SIGTRAP),
lp->cloned ? __WCLONE : 0);
}
}
else
{
/* Hold the SIGTRAP for handling by
linux_nat_wait. */
/* If there's another event, throw it back into the
queue. */
if (lp->status)
{
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"SWC: kill %s, %s\n",
target_pid_to_str (lp->ptid),
status_to_str ((int) status));
kill_lwp (GET_LWP (lp->ptid), WSTOPSIG (lp->status));
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
/* Save the sigtrap event. */
lp->status = status;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
return 0;
}
else
{
/* The thread was stopped with a signal other than
SIGSTOP, and didn't accidentally trip a breakpoint. */
if (debug_linux_nat)
{
fprintf_unfiltered (gdb_stdlog,
"SWC: Pending event %s in %s\n",
status_to_str ((int) status),
target_pid_to_str (lp->ptid));
}
/* Now resume this LWP and get the SIGSTOP event. */
errno = 0;
ptrace (PTRACE_CONT, GET_LWP (lp->ptid), 0, 0);
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"SWC: PTRACE_CONT %s, 0, 0 (%s)\n",
target_pid_to_str (lp->ptid),
errno ? safe_strerror (errno) : "OK");
/* Hold this event/waitstatus while we check to see if
there are any more (we still want to get that SIGSTOP). */
stop_wait_callback (lp, NULL);
/* If the lp->status field is still empty, use it to
hold this event. If not, then this event must be
returned to the event queue of the LWP. */
if (lp->status || target_can_async_p ())
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
if (debug_linux_nat)
{
fprintf_unfiltered (gdb_stdlog,
"SWC: kill %s, %s\n",
target_pid_to_str (lp->ptid),
status_to_str ((int) status));
}
kill_lwp (GET_LWP (lp->ptid), WSTOPSIG (status));
}
else
lp->status = status;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
return 0;
}
}
else
{
/* We caught the SIGSTOP that we intended to catch, so
there's no SIGSTOP pending. */
lp->stopped = 1;
lp->signalled = 0;
}
}
return 0;
}
/* Return non-zero if LP has a wait status pending. */
static int
status_callback (struct lwp_info *lp, void *data)
{
/* Only report a pending wait status if we pretend that this has
indeed been resumed. */
return (lp->status != 0 && lp->resumed);
}
/* Return non-zero if LP isn't stopped. */
static int
running_callback (struct lwp_info *lp, void *data)
{
return (lp->stopped == 0 || (lp->status != 0 && lp->resumed));
}
/* Count the LWP's that have had events. */
static int
count_events_callback (struct lwp_info *lp, void *data)
{
int *count = data;
gdb_assert (count != NULL);
/* Count only resumed LWPs that have a SIGTRAP event pending. */
if (lp->status != 0 && lp->resumed
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
&& WIFSTOPPED (lp->status) && WSTOPSIG (lp->status) == SIGTRAP)
(*count)++;
return 0;
}
/* Select the LWP (if any) that is currently being single-stepped. */
static int
select_singlestep_lwp_callback (struct lwp_info *lp, void *data)
{
if (lp->step && lp->status != 0)
return 1;
else
return 0;
}
/* Select the Nth LWP that has had a SIGTRAP event. */
static int
select_event_lwp_callback (struct lwp_info *lp, void *data)
{
int *selector = data;
gdb_assert (selector != NULL);
/* Select only resumed LWPs that have a SIGTRAP event pending. */
if (lp->status != 0 && lp->resumed
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
&& WIFSTOPPED (lp->status) && WSTOPSIG (lp->status) == SIGTRAP)
if ((*selector)-- == 0)
return 1;
return 0;
}
static int
cancel_breakpoint (struct lwp_info *lp)
{
/* Arrange for a breakpoint to be hit again later. We don't keep
the SIGTRAP status and don't forward the SIGTRAP signal to the
LWP. We will handle the current event, eventually we will resume
this LWP, and this breakpoint will trap again.
If we do not do this, then we run the risk that the user will
delete or disable the breakpoint, but the LWP will have already
tripped on it. */
struct regcache *regcache = get_thread_regcache (lp->ptid);
struct gdbarch *gdbarch = get_regcache_arch (regcache);
CORE_ADDR pc;
pc = regcache_read_pc (regcache) - gdbarch_decr_pc_after_break (gdbarch);
if (breakpoint_inserted_here_p (pc))
{
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"CB: Push back breakpoint for %s\n",
target_pid_to_str (lp->ptid));
/* Back up the PC if necessary. */
if (gdbarch_decr_pc_after_break (gdbarch))
regcache_write_pc (regcache, pc);
return 1;
}
return 0;
}
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
static int
cancel_breakpoints_callback (struct lwp_info *lp, void *data)
{
struct lwp_info *event_lp = data;
/* Leave the LWP that has been elected to receive a SIGTRAP alone. */
if (lp == event_lp)
return 0;
/* If a LWP other than the LWP that we're reporting an event for has
hit a GDB breakpoint (as opposed to some random trap signal),
then just arrange for it to hit it again later. We don't keep
the SIGTRAP status and don't forward the SIGTRAP signal to the
LWP. We will handle the current event, eventually we will resume
all LWPs, and this one will get its breakpoint trap again.
If we do not do this, then we run the risk that the user will
delete or disable the breakpoint, but the LWP will have already
tripped on it. */
if (lp->status != 0
&& WIFSTOPPED (lp->status) && WSTOPSIG (lp->status) == SIGTRAP
&& cancel_breakpoint (lp))
/* Throw away the SIGTRAP. */
lp->status = 0;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
return 0;
}
/* Select one LWP out of those that have events pending. */
static void
select_event_lwp (struct lwp_info **orig_lp, int *status)
{
int num_events = 0;
int random_selector;
struct lwp_info *event_lp;
/* Record the wait status for the original LWP. */
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
(*orig_lp)->status = *status;
/* Give preference to any LWP that is being single-stepped. */
event_lp = iterate_over_lwps (select_singlestep_lwp_callback, NULL);
if (event_lp != NULL)
{
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"SEL: Select single-step %s\n",
target_pid_to_str (event_lp->ptid));
}
else
{
/* No single-stepping LWP. Select one at random, out of those
which have had SIGTRAP events. */
/* First see how many SIGTRAP events we have. */
iterate_over_lwps (count_events_callback, &num_events);
/* Now randomly pick a LWP out of those that have had a SIGTRAP. */
random_selector = (int)
((num_events * (double) rand ()) / (RAND_MAX + 1.0));
if (debug_linux_nat && num_events > 1)
fprintf_unfiltered (gdb_stdlog,
"SEL: Found %d SIGTRAP events, selecting #%d\n",
num_events, random_selector);
event_lp = iterate_over_lwps (select_event_lwp_callback,
&random_selector);
}
if (event_lp != NULL)
{
/* Switch the event LWP. */
*orig_lp = event_lp;
*status = event_lp->status;
}
/* Flush the wait status for the event LWP. */
(*orig_lp)->status = 0;
}
/* Return non-zero if LP has been resumed. */
static int
resumed_callback (struct lwp_info *lp, void *data)
{
return lp->resumed;
}
/* Stop an active thread, verify it still exists, then resume it. */
static int
stop_and_resume_callback (struct lwp_info *lp, void *data)
{
struct lwp_info *ptr;
if (!lp->stopped && !lp->signalled)
{
stop_callback (lp, NULL);
stop_wait_callback (lp, NULL);
/* Resume if the lwp still exists. */
for (ptr = lwp_list; ptr; ptr = ptr->next)
if (lp == ptr)
{
resume_callback (lp, NULL);
resume_set_callback (lp, NULL);
}
}
return 0;
}
/* Check if we should go on and pass this event to common code.
Return the affected lwp if we are, or NULL otherwise. */
static struct lwp_info *
linux_nat_filter_event (int lwpid, int status, int options)
{
struct lwp_info *lp;
lp = find_lwp_pid (pid_to_ptid (lwpid));
/* Check for stop events reported by a process we didn't already
know about - anything not already in our LWP list.
If we're expecting to receive stopped processes after
fork, vfork, and clone events, then we'll just add the
new one to our list and go back to waiting for the event
to be reported - the stopped process might be returned
from waitpid before or after the event is. */
if (WIFSTOPPED (status) && !lp)
{
linux_record_stopped_pid (lwpid, status);
return NULL;
}
/* Make sure we don't report an event for the exit of an LWP not in
our list, i.e. not part of the current process. This can happen
if we detach from a program we original forked and then it
exits. */
if (!WIFSTOPPED (status) && !lp)
return NULL;
/* NOTE drow/2003-06-17: This code seems to be meant for debugging
CLONE_PTRACE processes which do not use the thread library -
otherwise we wouldn't find the new LWP this way. That doesn't
currently work, and the following code is currently unreachable
due to the two blocks above. If it's fixed some day, this code
should be broken out into a function so that we can also pick up
LWPs from the new interface. */
if (!lp)
{
lp = add_lwp (BUILD_LWP (lwpid, GET_PID (inferior_ptid)));
if (options & __WCLONE)
lp->cloned = 1;
gdb_assert (WIFSTOPPED (status)
&& WSTOPSIG (status) == SIGSTOP);
lp->signalled = 1;
if (!in_thread_list (inferior_ptid))
{
inferior_ptid = BUILD_LWP (GET_PID (inferior_ptid),
GET_PID (inferior_ptid));
add_thread (inferior_ptid);
}
add_thread (lp->ptid);
}
/* Save the trap's siginfo in case we need it later. */
if (WIFSTOPPED (status) && WSTOPSIG (status) == SIGTRAP)
save_siginfo (lp);
/* Handle GNU/Linux's extended waitstatus for trace events. */
if (WIFSTOPPED (status) && WSTOPSIG (status) == SIGTRAP && status >> 16 != 0)
{
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LLW: Handling extended status 0x%06x\n",
status);
if (linux_handle_extended_wait (lp, status, 0))
return NULL;
}
/* Check if the thread has exited. */
if ((WIFEXITED (status) || WIFSIGNALED (status)) && num_lwps > 1)
{
/* If this is the main thread, we must stop all threads and
verify if they are still alive. This is because in the nptl
thread model, there is no signal issued for exiting LWPs
other than the main thread. We only get the main thread exit
signal once all child threads have already exited. If we
stop all the threads and use the stop_wait_callback to check
if they have exited we can determine whether this signal
should be ignored or whether it means the end of the debugged
application, regardless of which threading model is being
used. */
if (GET_PID (lp->ptid) == GET_LWP (lp->ptid))
{
lp->stopped = 1;
iterate_over_lwps (stop_and_resume_callback, NULL);
}
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LLW: %s exited.\n",
target_pid_to_str (lp->ptid));
exit_lwp (lp);
/* If there is at least one more LWP, then the exit signal was
not the end of the debugged application and should be
ignored. */
if (num_lwps > 0)
return NULL;
}
/* Check if the current LWP has previously exited. In the nptl
thread model, LWPs other than the main thread do not issue
signals when they exit so we must check whenever the thread has
stopped. A similar check is made in stop_wait_callback(). */
if (num_lwps > 1 && !linux_nat_thread_alive (lp->ptid))
{
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LLW: %s exited.\n",
target_pid_to_str (lp->ptid));
exit_lwp (lp);
/* Make sure there is at least one thread running. */
gdb_assert (iterate_over_lwps (running_callback, NULL));
/* Discard the event. */
return NULL;
}
/* Make sure we don't report a SIGSTOP that we sent ourselves in
an attempt to stop an LWP. */
if (lp->signalled
&& WIFSTOPPED (status) && WSTOPSIG (status) == SIGSTOP)
{
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LLW: Delayed SIGSTOP caught for %s.\n",
target_pid_to_str (lp->ptid));
/* This is a delayed SIGSTOP. */
lp->signalled = 0;
registers_changed ();
linux_ops->to_resume (pid_to_ptid (GET_LWP (lp->ptid)),
lp->step, TARGET_SIGNAL_0);
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LLW: %s %s, 0, 0 (discard SIGSTOP)\n",
lp->step ?
"PTRACE_SINGLESTEP" : "PTRACE_CONT",
target_pid_to_str (lp->ptid));
lp->stopped = 0;
gdb_assert (lp->resumed);
/* Discard the event. */
return NULL;
}
/* Make sure we don't report a SIGINT that we have already displayed
for another thread. */
if (lp->ignore_sigint
&& WIFSTOPPED (status) && WSTOPSIG (status) == SIGINT)
{
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LLW: Delayed SIGINT caught for %s.\n",
target_pid_to_str (lp->ptid));
/* This is a delayed SIGINT. */
lp->ignore_sigint = 0;
registers_changed ();
linux_ops->to_resume (pid_to_ptid (GET_LWP (lp->ptid)),
lp->step, TARGET_SIGNAL_0);
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LLW: %s %s, 0, 0 (discard SIGINT)\n",
lp->step ?
"PTRACE_SINGLESTEP" : "PTRACE_CONT",
target_pid_to_str (lp->ptid));
lp->stopped = 0;
gdb_assert (lp->resumed);
/* Discard the event. */
return NULL;
}
/* An interesting event. */
gdb_assert (lp);
return lp;
}
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
/* Get the events stored in the pipe into the local queue, so they are
accessible to queued_waitpid. We need to do this, since it is not
always the case that the event at the head of the pipe is the event
we want. */
static void
pipe_to_local_event_queue (void)
{
if (debug_linux_nat_async)
fprintf_unfiltered (gdb_stdlog,
"PTLEQ: linux_nat_num_queued_events(%d)\n",
linux_nat_num_queued_events);
while (linux_nat_num_queued_events)
{
int lwpid, status, options;
lwpid = linux_nat_event_pipe_pop (&status, &options);
gdb_assert (lwpid > 0);
push_waitpid (lwpid, status, options);
}
}
/* Get the unprocessed events stored in the local queue back into the
pipe, so the event loop realizes there's something else to
process. */
static void
local_event_queue_to_pipe (void)
{
struct waitpid_result *w = waitpid_queue;
while (w)
{
struct waitpid_result *next = w->next;
linux_nat_event_pipe_push (w->pid,
w->status,
w->options);
xfree (w);
w = next;
}
waitpid_queue = NULL;
if (debug_linux_nat_async)
fprintf_unfiltered (gdb_stdlog,
"LEQTP: linux_nat_num_queued_events(%d)\n",
linux_nat_num_queued_events);
}
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
static ptid_t
linux_nat_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
{
struct lwp_info *lp = NULL;
int options = 0;
int status = 0;
pid_t pid = PIDGET (ptid);
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
if (debug_linux_nat_async)
fprintf_unfiltered (gdb_stdlog, "LLW: enter\n");
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
/* The first time we get here after starting a new inferior, we may
not have added it to the LWP list yet - this is the earliest
moment at which we know its PID. */
if (num_lwps == 0)
{
gdb_assert (!is_lwp (inferior_ptid));
/* Upgrade the main thread's ptid. */
thread_change_ptid (inferior_ptid,
BUILD_LWP (GET_PID (inferior_ptid),
GET_PID (inferior_ptid)));
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
lp = add_lwp (inferior_ptid);
lp->resumed = 1;
}
/* Block events while we're here. */
linux_nat_async_events (sigchld_sync);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
retry:
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
/* Make sure there is at least one LWP that has been resumed. */
gdb_assert (iterate_over_lwps (resumed_callback, NULL));
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
/* First check if there is a LWP with a wait status pending. */
if (pid == -1)
{
/* Any LWP that's been resumed will do. */
lp = iterate_over_lwps (status_callback, NULL);
if (lp)
{
if (target_can_async_p ())
internal_error (__FILE__, __LINE__,
"Found an LWP with a pending status in async mode.");
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
status = lp->status;
lp->status = 0;
if (debug_linux_nat && status)
fprintf_unfiltered (gdb_stdlog,
"LLW: Using pending wait status %s for %s.\n",
status_to_str (status),
target_pid_to_str (lp->ptid));
}
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
/* But if we don't find one, we'll have to wait, and check both
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
cloned and uncloned processes. We start with the cloned
processes. */
options = __WCLONE | WNOHANG;
}
else if (is_lwp (ptid))
{
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LLW: Waiting for specific LWP %s.\n",
target_pid_to_str (ptid));
/* We have a specific LWP to check. */
lp = find_lwp_pid (ptid);
gdb_assert (lp);
status = lp->status;
lp->status = 0;
if (debug_linux_nat && status)
fprintf_unfiltered (gdb_stdlog,
"LLW: Using pending wait status %s for %s.\n",
status_to_str (status),
target_pid_to_str (lp->ptid));
/* If we have to wait, take into account whether PID is a cloned
process or not. And we have to convert it to something that
the layer beneath us can understand. */
options = lp->cloned ? __WCLONE : 0;
pid = GET_LWP (ptid);
}
if (status && lp->signalled)
{
/* A pending SIGSTOP may interfere with the normal stream of
events. In a typical case where interference is a problem,
we have a SIGSTOP signal pending for LWP A while
single-stepping it, encounter an event in LWP B, and take the
pending SIGSTOP while trying to stop LWP A. After processing
the event in LWP B, LWP A is continued, and we'll never see
the SIGTRAP associated with the last time we were
single-stepping LWP A. */
/* Resume the thread. It should halt immediately returning the
pending SIGSTOP. */
registers_changed ();
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
linux_ops->to_resume (pid_to_ptid (GET_LWP (lp->ptid)),
lp->step, TARGET_SIGNAL_0);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LLW: %s %s, 0, 0 (expect SIGSTOP)\n",
lp->step ? "PTRACE_SINGLESTEP" : "PTRACE_CONT",
target_pid_to_str (lp->ptid));
lp->stopped = 0;
gdb_assert (lp->resumed);
/* This should catch the pending SIGSTOP. */
stop_wait_callback (lp, NULL);
}
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
if (!target_can_async_p ())
{
/* Causes SIGINT to be passed on to the attached process. */
set_sigint_trap ();
}
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
while (status == 0)
{
pid_t lwpid;
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
if (target_can_async_p ())
/* In async mode, don't ever block. Only look at the locally
queued events. */
lwpid = queued_waitpid (pid, &status, options);
else
lwpid = my_waitpid (pid, &status, options);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (lwpid > 0)
{
gdb_assert (pid == -1 || lwpid == pid);
if (debug_linux_nat)
{
fprintf_unfiltered (gdb_stdlog,
"LLW: waitpid %ld received %s\n",
(long) lwpid, status_to_str (status));
}
lp = linux_nat_filter_event (lwpid, status, options);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (!lp)
{
/* A discarded event. */
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
status = 0;
continue;
}
break;
}
if (pid == -1)
{
/* Alternate between checking cloned and uncloned processes. */
options ^= __WCLONE;
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
/* And every time we have checked both:
In async mode, return to event loop;
In sync mode, suspend waiting for a SIGCHLD signal. */
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (options & __WCLONE)
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
{
if (target_can_async_p ())
{
/* No interesting event. */
ourstatus->kind = TARGET_WAITKIND_IGNORE;
/* Get ready for the next event. */
target_async (inferior_event_handler, 0);
if (debug_linux_nat_async)
fprintf_unfiltered (gdb_stdlog, "LLW: exit (ignore)\n");
return minus_one_ptid;
}
sigsuspend (&suspend_mask);
}
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
/* We shouldn't end up here unless we want to try again. */
gdb_assert (status == 0);
}
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
if (!target_can_async_p ())
clear_sigint_trap ();
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
gdb_assert (lp);
/* Don't report signals that GDB isn't interested in, such as
signals that are neither printed nor stopped upon. Stopping all
threads can be a bit time-consuming so if we want decent
performance with heavily multi-threaded programs, especially when
they're using a high frequency timer, we'd better avoid it if we
can. */
if (WIFSTOPPED (status))
{
int signo = target_signal_from_host (WSTOPSIG (status));
struct inferior *inf;
inf = find_inferior_pid (ptid_get_pid (lp->ptid));
gdb_assert (inf);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
/* Defer to common code if we get a signal while
single-stepping, since that may need special care, e.g. to
skip the signal handler, or, if we're gaining control of the
inferior. */
if (!lp->step
&& inf->stop_soon == NO_STOP_QUIETLY
&& signal_stop_state (signo) == 0
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
&& signal_print_state (signo) == 0
&& signal_pass_state (signo) == 1)
{
/* FIMXE: kettenis/2001-06-06: Should we resume all threads
here? It is not clear we should. GDB may not expect
other threads to run. On the other hand, not resuming
newly attached threads may cause an unwanted delay in
getting them running. */
registers_changed ();
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
linux_ops->to_resume (pid_to_ptid (GET_LWP (lp->ptid)),
lp->step, signo);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LLW: %s %s, %s (preempt 'handle')\n",
lp->step ?
"PTRACE_SINGLESTEP" : "PTRACE_CONT",
target_pid_to_str (lp->ptid),
signo ? strsignal (signo) : "0");
lp->stopped = 0;
status = 0;
goto retry;
}
if (!non_stop)
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
/* Only do the below in all-stop, as we currently use SIGINT
to implement target_stop (see linux_nat_stop) in
non-stop. */
if (signo == TARGET_SIGNAL_INT && signal_pass_state (signo) == 0)
{
/* If ^C/BREAK is typed at the tty/console, SIGINT gets
forwarded to the entire process group, that is, all LWPs
will receive it - unless they're using CLONE_THREAD to
share signals. Since we only want to report it once, we
mark it as ignored for all LWPs except this one. */
iterate_over_lwps (set_ignore_sigint, NULL);
lp->ignore_sigint = 0;
}
else
maybe_clear_ignore_sigint (lp);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
}
/* This LWP is stopped now. */
lp->stopped = 1;
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog, "LLW: Candidate event %s in %s.\n",
status_to_str (status), target_pid_to_str (lp->ptid));
if (!non_stop)
{
/* Now stop all other LWP's ... */
iterate_over_lwps (stop_callback, NULL);
/* ... and wait until all of them have reported back that
they're no longer running. */
iterate_over_lwps (stop_wait_callback, NULL);
/* If we're not waiting for a specific LWP, choose an event LWP
from among those that have had events. Giving equal priority
to all LWPs that have had events helps prevent
starvation. */
if (pid == -1)
select_event_lwp (&lp, &status);
}
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
/* Now that we've selected our final event LWP, cancel any
breakpoints in other LWPs that have hit a GDB breakpoint. See
the comment in cancel_breakpoints_callback to find out why. */
iterate_over_lwps (cancel_breakpoints_callback, lp);
if (WIFSTOPPED (status) && WSTOPSIG (status) == SIGTRAP)
{
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LLW: trap ptid is %s.\n",
target_pid_to_str (lp->ptid));
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
if (lp->waitstatus.kind != TARGET_WAITKIND_IGNORE)
{
*ourstatus = lp->waitstatus;
lp->waitstatus.kind = TARGET_WAITKIND_IGNORE;
}
else
store_waitstatus (ourstatus, status);
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
/* Get ready for the next event. */
if (target_can_async_p ())
target_async (inferior_event_handler, 0);
if (debug_linux_nat_async)
fprintf_unfiltered (gdb_stdlog, "LLW: exit\n");
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
return lp->ptid;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
static int
kill_callback (struct lwp_info *lp, void *data)
{
errno = 0;
ptrace (PTRACE_KILL, GET_LWP (lp->ptid), 0, 0);
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"KC: PTRACE_KILL %s, 0, 0 (%s)\n",
target_pid_to_str (lp->ptid),
errno ? safe_strerror (errno) : "OK");
return 0;
}
static int
kill_wait_callback (struct lwp_info *lp, void *data)
{
pid_t pid;
/* We must make sure that there are no pending events (delayed
SIGSTOPs, pending SIGTRAPs, etc.) to make sure the current
program doesn't interfere with any following debugging session. */
/* For cloned processes we must check both with __WCLONE and
without, since the exit status of a cloned process isn't reported
with __WCLONE. */
if (lp->cloned)
{
do
{
pid = my_waitpid (GET_LWP (lp->ptid), NULL, __WCLONE);
if (pid != (pid_t) -1)
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"KWC: wait %s received unknown.\n",
target_pid_to_str (lp->ptid));
/* The Linux kernel sometimes fails to kill a thread
completely after PTRACE_KILL; that goes from the stop
point in do_fork out to the one in
get_signal_to_deliever and waits again. So kill it
again. */
kill_callback (lp, NULL);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
}
while (pid == GET_LWP (lp->ptid));
gdb_assert (pid == -1 && errno == ECHILD);
}
do
{
pid = my_waitpid (GET_LWP (lp->ptid), NULL, 0);
if (pid != (pid_t) -1)
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"KWC: wait %s received unk.\n",
target_pid_to_str (lp->ptid));
/* See the call to kill_callback above. */
kill_callback (lp, NULL);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
}
while (pid == GET_LWP (lp->ptid));
gdb_assert (pid == -1 && errno == ECHILD);
return 0;
}
static void
linux_nat_kill (void)
{
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
struct target_waitstatus last;
ptid_t last_ptid;
int status;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
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
if (target_can_async_p ())
target_async (NULL, 0);
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
/* If we're stopped while forking and we haven't followed yet,
kill the other task. We need to do this first because the
parent will be sleeping if this is a vfork. */
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
get_last_target_status (&last_ptid, &last);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
if (last.kind == TARGET_WAITKIND_FORKED
|| last.kind == TARGET_WAITKIND_VFORKED)
{
ptrace (PT_KILL, PIDGET (last.value.related_pid), 0, 0);
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
wait (&status);
}
if (forks_exist_p ())
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
{
linux_fork_killall ();
drain_queued_events (-1);
}
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
else
{
/* Stop all threads before killing them, since ptrace requires
that the thread is stopped to sucessfully PTRACE_KILL. */
iterate_over_lwps (stop_callback, NULL);
/* ... and wait until all of them have reported back that
they're no longer running. */
iterate_over_lwps (stop_wait_callback, NULL);
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
/* Kill all LWP's ... */
iterate_over_lwps (kill_callback, NULL);
/* ... and wait until we've flushed all events. */
iterate_over_lwps (kill_wait_callback, NULL);
}
target_mourn_inferior ();
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
static void
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
linux_nat_mourn_inferior (struct target_ops *ops)
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
/* Destroy LWP info; it's no longer valid. */
init_lwp_list ();
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
if (! forks_exist_p ())
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
{
/* Normal case, no other forks available. */
if (target_can_async_p ())
linux_nat_async (NULL, 0);
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
linux_ops->to_mourn_inferior (ops);
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
}
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
else
/* Multi-fork case. The current inferior_ptid has exited, but
there are other viable forks to debug. Delete the exiting
one and context-switch to the first available. */
linux_fork_mourn_inferior ();
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
static LONGEST
linux_nat_xfer_partial (struct target_ops *ops, enum target_object object,
const char *annex, gdb_byte *readbuf,
const gdb_byte *writebuf,
ULONGEST offset, LONGEST len)
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
struct cleanup *old_chain = save_inferior_ptid ();
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
LONGEST xfer;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (is_lwp (inferior_ptid))
inferior_ptid = pid_to_ptid (GET_LWP (inferior_ptid));
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
xfer = linux_ops->to_xfer_partial (ops, object, annex, readbuf, writebuf,
offset, len);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
do_cleanups (old_chain);
return xfer;
}
static int
linux_nat_thread_alive (ptid_t ptid)
{
int err;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
gdb_assert (is_lwp (ptid));
/* Send signal 0 instead of anything ptrace, because ptracing a
running thread errors out claiming that the thread doesn't
exist. */
err = kill_lwp (GET_LWP (ptid), 0);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LLTA: KILL(SIG0) %s (%s)\n",
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
target_pid_to_str (ptid),
err ? safe_strerror (err) : "OK");
if (err != 0)
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
return 0;
return 1;
}
static char *
linux_nat_pid_to_str (ptid_t ptid)
{
static char buf[64];
if (is_lwp (ptid)
&& ((lwp_list && lwp_list->next)
|| GET_PID (ptid) != GET_LWP (ptid)))
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
{
snprintf (buf, sizeof (buf), "LWP %ld", GET_LWP (ptid));
return buf;
}
return normal_pid_to_str (ptid);
}
static void
sigchld_handler (int signo)
{
if (target_async_permitted
&& linux_nat_async_events_state != sigchld_sync
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
&& signo == SIGCHLD)
/* It is *always* a bug to hit this. */
internal_error (__FILE__, __LINE__,
"sigchld_handler called when async events are enabled");
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
/* Do nothing. The only reason for this handler is that it allows
us to use sigsuspend in linux_nat_wait above to wait for the
arrival of a SIGCHLD. */
}
/* Accepts an integer PID; Returns a string representing a file that
can be opened to get the symbols for the child process. */
static char *
linux_child_pid_to_exec_file (int pid)
{
char *name1, *name2;
name1 = xmalloc (MAXPATHLEN);
name2 = xmalloc (MAXPATHLEN);
make_cleanup (xfree, name1);
make_cleanup (xfree, name2);
memset (name2, 0, MAXPATHLEN);
sprintf (name1, "/proc/%d/exe", pid);
if (readlink (name1, name2, MAXPATHLEN) > 0)
return name2;
else
return name1;
}
/* Service function for corefiles and info proc. */
static int
read_mapping (FILE *mapfile,
long long *addr,
long long *endaddr,
char *permissions,
long long *offset,
char *device, long long *inode, char *filename)
{
int ret = fscanf (mapfile, "%llx-%llx %s %llx %s %llx",
addr, endaddr, permissions, offset, device, inode);
filename[0] = '\0';
if (ret > 0 && ret != EOF)
{
/* Eat everything up to EOL for the filename. This will prevent
weird filenames (such as one with embedded whitespace) from
confusing this code. It also makes this code more robust in
respect to annotations the kernel may add after the filename.
Note the filename is used for informational purposes
only. */
ret += fscanf (mapfile, "%[^\n]\n", filename);
}
return (ret != 0 && ret != EOF);
}
/* Fills the "to_find_memory_regions" target vector. Lists the memory
regions in the inferior for a corefile. */
static int
linux_nat_find_memory_regions (int (*func) (CORE_ADDR,
unsigned long,
int, int, int, void *), void *obfd)
{
long long pid = PIDGET (inferior_ptid);
char mapsfilename[MAXPATHLEN];
FILE *mapsfile;
long long addr, endaddr, size, offset, inode;
char permissions[8], device[8], filename[MAXPATHLEN];
int read, write, exec;
int ret;
struct cleanup *cleanup;
/* Compose the filename for the /proc memory map, and open it. */
sprintf (mapsfilename, "/proc/%lld/maps", pid);
if ((mapsfile = fopen (mapsfilename, "r")) == NULL)
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 (_("Could not open %s."), mapsfilename);
cleanup = make_cleanup_fclose (mapsfile);
if (info_verbose)
fprintf_filtered (gdb_stdout,
"Reading memory regions from %s\n", mapsfilename);
/* Now iterate until end-of-file. */
while (read_mapping (mapsfile, &addr, &endaddr, &permissions[0],
&offset, &device[0], &inode, &filename[0]))
{
size = endaddr - addr;
/* Get the segment's permissions. */
read = (strchr (permissions, 'r') != 0);
write = (strchr (permissions, 'w') != 0);
exec = (strchr (permissions, 'x') != 0);
if (info_verbose)
{
fprintf_filtered (gdb_stdout,
"Save segment, %lld bytes at 0x%s (%c%c%c)",
size, paddr_nz (addr),
read ? 'r' : ' ',
write ? 'w' : ' ', exec ? 'x' : ' ');
if (filename[0])
fprintf_filtered (gdb_stdout, " for %s", filename);
fprintf_filtered (gdb_stdout, "\n");
}
/* Invoke the callback function to create the corefile
segment. */
func (addr, size, read, write, exec, obfd);
}
do_cleanups (cleanup);
return 0;
}
Remove the global stop_signal in favour of a per-thread stop_signal. * inferior.h (stop_signal): Delete. * gdbthread.h (save_infrun_state, load_infrun_state): Remove stop_signal argument. * thread.c (load_infrun_state, save_infrun_state): Remove stop_signal argument. Don't reference it. * infcmd.c (stop_signal): Delete. (program_info): Adjust. * infrun.c (resume): Clear stop_signal. (proceed): Adjust. Pass the last stop_signal to the thread we're resuming. (context_switch): Don't context-switch stop_signal. (handle_inferior_event, keep_going): Adjust. (save_inferior_status, restore_inferior_status): Adjust. * fbsd-nat.c: Include "gdbthread.h". (find_signalled_thread, find_stop_signal): New. (fbsd_make_corefile_notes): Use it. * fork-child.c (startup_inferior): Adjust. * linux-nat.c (get_pending_status): Adjust. (linux_nat_do_thread_registers): Adjust. (find_signalled_thread, find_stop_signal): New. (linux_nat_do_thread_registers): Add stop_signal parameter. (struct linux_nat_corefile_thread_data): Add stop_signal member. (linux_nat_corefile_thread_callback): Pass stop_signal. (linux_nat_do_registers): Delete. (linux_nat_make_corefile_notes): Use find_stop_signal. Assume there's always a thread. * procfs.c (find_signalled_thread, find_stop_signal): New. (find_stop_signal): New. (procfs_do_thread_registers): Add stop_signal parameter. (struct procfs_corefile_thread_data): Add stop_signal member. (procfs_corefile_thread_callback): Pass args->stop_signal. (procfs_make_note_section): Find the last stop_signal. * solib-irix.c: Include gdbthread.h. (irix_solib_create_inferior_hook): Adjust. * solib-osf.c: Include gdbthread.h. (osf_solib_create_inferior_hook): Adjust. * solib-sunos.c: Include gdbthread.h. (sunos_solib_create_inferior_hook): Adjust. * solib-svr4.c: Include gdbthread.h. (svr4_solib_create_inferior_hook): Adjust. * win32-nat.c (do_initial_win32_stuff): Adjust.
2008-09-08 23:51:18 +02:00
static int
find_signalled_thread (struct thread_info *info, void *data)
{
if (info->stop_signal != TARGET_SIGNAL_0
&& ptid_get_pid (info->ptid) == ptid_get_pid (inferior_ptid))
return 1;
return 0;
}
static enum target_signal
find_stop_signal (void)
{
struct thread_info *info =
iterate_over_threads (find_signalled_thread, NULL);
if (info)
return info->stop_signal;
else
return TARGET_SIGNAL_0;
}
/* Records the thread's register state for the corefile note
section. */
static char *
linux_nat_do_thread_registers (bfd *obfd, ptid_t ptid,
Remove the global stop_signal in favour of a per-thread stop_signal. * inferior.h (stop_signal): Delete. * gdbthread.h (save_infrun_state, load_infrun_state): Remove stop_signal argument. * thread.c (load_infrun_state, save_infrun_state): Remove stop_signal argument. Don't reference it. * infcmd.c (stop_signal): Delete. (program_info): Adjust. * infrun.c (resume): Clear stop_signal. (proceed): Adjust. Pass the last stop_signal to the thread we're resuming. (context_switch): Don't context-switch stop_signal. (handle_inferior_event, keep_going): Adjust. (save_inferior_status, restore_inferior_status): Adjust. * fbsd-nat.c: Include "gdbthread.h". (find_signalled_thread, find_stop_signal): New. (fbsd_make_corefile_notes): Use it. * fork-child.c (startup_inferior): Adjust. * linux-nat.c (get_pending_status): Adjust. (linux_nat_do_thread_registers): Adjust. (find_signalled_thread, find_stop_signal): New. (linux_nat_do_thread_registers): Add stop_signal parameter. (struct linux_nat_corefile_thread_data): Add stop_signal member. (linux_nat_corefile_thread_callback): Pass stop_signal. (linux_nat_do_registers): Delete. (linux_nat_make_corefile_notes): Use find_stop_signal. Assume there's always a thread. * procfs.c (find_signalled_thread, find_stop_signal): New. (find_stop_signal): New. (procfs_do_thread_registers): Add stop_signal parameter. (struct procfs_corefile_thread_data): Add stop_signal member. (procfs_corefile_thread_callback): Pass args->stop_signal. (procfs_make_note_section): Find the last stop_signal. * solib-irix.c: Include gdbthread.h. (irix_solib_create_inferior_hook): Adjust. * solib-osf.c: Include gdbthread.h. (osf_solib_create_inferior_hook): Adjust. * solib-sunos.c: Include gdbthread.h. (sunos_solib_create_inferior_hook): Adjust. * solib-svr4.c: Include gdbthread.h. (svr4_solib_create_inferior_hook): Adjust. * win32-nat.c (do_initial_win32_stuff): Adjust.
2008-09-08 23:51:18 +02:00
char *note_data, int *note_size,
enum target_signal stop_signal)
{
gdb_gregset_t gregs;
gdb_fpregset_t fpregs;
unsigned long lwp = ptid_get_lwp (ptid);
* regcache.c (struct regcache): Add ptid_t member. (regcache_xmalloc): Initialize it. (regcache_cpy_no_passthrough): Do not refer to current_regcache. (regcache_dup): Likewise. (regcache_dup_no_passthrough): Likewise. (current_regcache): Make static. (registers_ptid): Remove variable. (get_thread_regcache): New function. (get_current_regcache): New function. (registers_changed): Implement by freeing current regcache. (regcache_raw_read): Do not refer to current_regcache. Set inferior_ptid to regcache->ptid while calling target routines. (regcache_raw_write): Likewise. (regcache_raw_supply): Do not refer to current_regcache. (read_pc_pid): Use thread regcache. Do not modify inferior_ptid. (write_pc_pid): Likewise. (build_regcache): Remove. (_initialize_regcache): Do not call DEPRECATED_REGISTER_GDBARCH_SWAP or deprecated_register_gdbarch_swap. Do not initialize registers_ptid. * regcache.h (get_current_regcache): Add prototype. (get_thread_regcache): Likewise. (current_regcache): Remove declaration. * corelow.c (core_open): Replace current_regcache by get_current_regcache (). * frame.c (frame_pop): Likewise. (put_frame_register): Likewise. (get_current_frame, create_new_frame): Likewise. * mi/mi-main.c (mi_cmd_data_write_register_values): Likewise. * stack.c (return_command): Likewise. * infcall.c (call_function_by_hand): Likewise. * infrun.c (resume): Likewise. (save_inferior_status, restore_inferior_status): Likewise. * linux-fork.c (fork_load_infrun_state): Likewise. (fork_save_infrun_state): Likewise. * win32-nat.c (win32_resume): Likewise. * i386fbsd-nat.c (i386fbsd_resume): Likewise. * monitor.c (monitor_wait): Likewise. * remote.c (remote_wait): Likewise. * remote-mips.c (mips_wait): Likewise. * bsd-kvm.c (bsd_kvm_open): Likewise (bsd_kvm_proc_cmd, bsd_kvm_pcb_cmd): Likewise. * fbsd-nat.c (fbsd_make_corefile_notes): Likewise. * i386-linux-nat.c (i386_linux_resume): Likewise. * ia64-linux-nat.c (ia64_linux_insert_watchpoint): Likewise. (ia64_linux_stopped_data_address): Likewise. * frv-tdep.c (frv_fdpic_loadmap_addresses): Likewise. * m32c-tdep.c (m32c_virtual_frame_pointer): Likewise. * mep-tdep.c (current_me_module, current_options): Likewise. * mips-tdep.c (deprecated_mips_set_processor_regs_hack): Likewise. * linux-nat.c (linux_nat_do_thread_registers): Use thread regcache instead of current_regcache. Call target_fetch_registers. (linux_nat_corefile_thread_callback): Update call site. (linux_nat_do_registers): Likewise. * procfs.c (procfs_do_thread_registers): Use thread regcache instead of current_regcache. (procfs_make_note_section): Likewise. * proc-service.c (ps_lgetregs, ps_lsetregs): Likewise. (ps_lgetfpregs, ps_lsetfpregs): Likewise. * sol-thread.c (ps_lgetregs, ps_lsetregs): Likewise. (ps_lgetfpregs, ps_lsetfpregs): Likewise.
2007-06-16 19:16:26 +02:00
struct regcache *regcache = get_thread_regcache (ptid);
struct gdbarch *gdbarch = get_regcache_arch (regcache);
const struct regset *regset;
int core_regset_p;
* regcache.c (struct regcache): Add ptid_t member. (regcache_xmalloc): Initialize it. (regcache_cpy_no_passthrough): Do not refer to current_regcache. (regcache_dup): Likewise. (regcache_dup_no_passthrough): Likewise. (current_regcache): Make static. (registers_ptid): Remove variable. (get_thread_regcache): New function. (get_current_regcache): New function. (registers_changed): Implement by freeing current regcache. (regcache_raw_read): Do not refer to current_regcache. Set inferior_ptid to regcache->ptid while calling target routines. (regcache_raw_write): Likewise. (regcache_raw_supply): Do not refer to current_regcache. (read_pc_pid): Use thread regcache. Do not modify inferior_ptid. (write_pc_pid): Likewise. (build_regcache): Remove. (_initialize_regcache): Do not call DEPRECATED_REGISTER_GDBARCH_SWAP or deprecated_register_gdbarch_swap. Do not initialize registers_ptid. * regcache.h (get_current_regcache): Add prototype. (get_thread_regcache): Likewise. (current_regcache): Remove declaration. * corelow.c (core_open): Replace current_regcache by get_current_regcache (). * frame.c (frame_pop): Likewise. (put_frame_register): Likewise. (get_current_frame, create_new_frame): Likewise. * mi/mi-main.c (mi_cmd_data_write_register_values): Likewise. * stack.c (return_command): Likewise. * infcall.c (call_function_by_hand): Likewise. * infrun.c (resume): Likewise. (save_inferior_status, restore_inferior_status): Likewise. * linux-fork.c (fork_load_infrun_state): Likewise. (fork_save_infrun_state): Likewise. * win32-nat.c (win32_resume): Likewise. * i386fbsd-nat.c (i386fbsd_resume): Likewise. * monitor.c (monitor_wait): Likewise. * remote.c (remote_wait): Likewise. * remote-mips.c (mips_wait): Likewise. * bsd-kvm.c (bsd_kvm_open): Likewise (bsd_kvm_proc_cmd, bsd_kvm_pcb_cmd): Likewise. * fbsd-nat.c (fbsd_make_corefile_notes): Likewise. * i386-linux-nat.c (i386_linux_resume): Likewise. * ia64-linux-nat.c (ia64_linux_insert_watchpoint): Likewise. (ia64_linux_stopped_data_address): Likewise. * frv-tdep.c (frv_fdpic_loadmap_addresses): Likewise. * m32c-tdep.c (m32c_virtual_frame_pointer): Likewise. * mep-tdep.c (current_me_module, current_options): Likewise. * mips-tdep.c (deprecated_mips_set_processor_regs_hack): Likewise. * linux-nat.c (linux_nat_do_thread_registers): Use thread regcache instead of current_regcache. Call target_fetch_registers. (linux_nat_corefile_thread_callback): Update call site. (linux_nat_do_registers): Likewise. * procfs.c (procfs_do_thread_registers): Use thread regcache instead of current_regcache. (procfs_make_note_section): Likewise. * proc-service.c (ps_lgetregs, ps_lsetregs): Likewise. (ps_lgetfpregs, ps_lsetfpregs): Likewise. * sol-thread.c (ps_lgetregs, ps_lsetregs): Likewise. (ps_lgetfpregs, ps_lsetfpregs): Likewise.
2007-06-16 19:16:26 +02:00
struct cleanup *old_chain;
struct core_regset_section *sect_list;
char *gdb_regset;
* regcache.c (struct regcache): Add ptid_t member. (regcache_xmalloc): Initialize it. (regcache_cpy_no_passthrough): Do not refer to current_regcache. (regcache_dup): Likewise. (regcache_dup_no_passthrough): Likewise. (current_regcache): Make static. (registers_ptid): Remove variable. (get_thread_regcache): New function. (get_current_regcache): New function. (registers_changed): Implement by freeing current regcache. (regcache_raw_read): Do not refer to current_regcache. Set inferior_ptid to regcache->ptid while calling target routines. (regcache_raw_write): Likewise. (regcache_raw_supply): Do not refer to current_regcache. (read_pc_pid): Use thread regcache. Do not modify inferior_ptid. (write_pc_pid): Likewise. (build_regcache): Remove. (_initialize_regcache): Do not call DEPRECATED_REGISTER_GDBARCH_SWAP or deprecated_register_gdbarch_swap. Do not initialize registers_ptid. * regcache.h (get_current_regcache): Add prototype. (get_thread_regcache): Likewise. (current_regcache): Remove declaration. * corelow.c (core_open): Replace current_regcache by get_current_regcache (). * frame.c (frame_pop): Likewise. (put_frame_register): Likewise. (get_current_frame, create_new_frame): Likewise. * mi/mi-main.c (mi_cmd_data_write_register_values): Likewise. * stack.c (return_command): Likewise. * infcall.c (call_function_by_hand): Likewise. * infrun.c (resume): Likewise. (save_inferior_status, restore_inferior_status): Likewise. * linux-fork.c (fork_load_infrun_state): Likewise. (fork_save_infrun_state): Likewise. * win32-nat.c (win32_resume): Likewise. * i386fbsd-nat.c (i386fbsd_resume): Likewise. * monitor.c (monitor_wait): Likewise. * remote.c (remote_wait): Likewise. * remote-mips.c (mips_wait): Likewise. * bsd-kvm.c (bsd_kvm_open): Likewise (bsd_kvm_proc_cmd, bsd_kvm_pcb_cmd): Likewise. * fbsd-nat.c (fbsd_make_corefile_notes): Likewise. * i386-linux-nat.c (i386_linux_resume): Likewise. * ia64-linux-nat.c (ia64_linux_insert_watchpoint): Likewise. (ia64_linux_stopped_data_address): Likewise. * frv-tdep.c (frv_fdpic_loadmap_addresses): Likewise. * m32c-tdep.c (m32c_virtual_frame_pointer): Likewise. * mep-tdep.c (current_me_module, current_options): Likewise. * mips-tdep.c (deprecated_mips_set_processor_regs_hack): Likewise. * linux-nat.c (linux_nat_do_thread_registers): Use thread regcache instead of current_regcache. Call target_fetch_registers. (linux_nat_corefile_thread_callback): Update call site. (linux_nat_do_registers): Likewise. * procfs.c (procfs_do_thread_registers): Use thread regcache instead of current_regcache. (procfs_make_note_section): Likewise. * proc-service.c (ps_lgetregs, ps_lsetregs): Likewise. (ps_lgetfpregs, ps_lsetfpregs): Likewise. * sol-thread.c (ps_lgetregs, ps_lsetregs): Likewise. (ps_lgetfpregs, ps_lsetfpregs): Likewise.
2007-06-16 19:16:26 +02:00
old_chain = save_inferior_ptid ();
inferior_ptid = ptid;
target_fetch_registers (regcache, -1);
do_cleanups (old_chain);
core_regset_p = gdbarch_regset_from_core_section_p (gdbarch);
sect_list = gdbarch_core_regset_sections (gdbarch);
if (core_regset_p
&& (regset = gdbarch_regset_from_core_section (gdbarch, ".reg",
sizeof (gregs))) != NULL
&& regset->collect_regset != NULL)
* regcache.c (struct regcache): Add ptid_t member. (regcache_xmalloc): Initialize it. (regcache_cpy_no_passthrough): Do not refer to current_regcache. (regcache_dup): Likewise. (regcache_dup_no_passthrough): Likewise. (current_regcache): Make static. (registers_ptid): Remove variable. (get_thread_regcache): New function. (get_current_regcache): New function. (registers_changed): Implement by freeing current regcache. (regcache_raw_read): Do not refer to current_regcache. Set inferior_ptid to regcache->ptid while calling target routines. (regcache_raw_write): Likewise. (regcache_raw_supply): Do not refer to current_regcache. (read_pc_pid): Use thread regcache. Do not modify inferior_ptid. (write_pc_pid): Likewise. (build_regcache): Remove. (_initialize_regcache): Do not call DEPRECATED_REGISTER_GDBARCH_SWAP or deprecated_register_gdbarch_swap. Do not initialize registers_ptid. * regcache.h (get_current_regcache): Add prototype. (get_thread_regcache): Likewise. (current_regcache): Remove declaration. * corelow.c (core_open): Replace current_regcache by get_current_regcache (). * frame.c (frame_pop): Likewise. (put_frame_register): Likewise. (get_current_frame, create_new_frame): Likewise. * mi/mi-main.c (mi_cmd_data_write_register_values): Likewise. * stack.c (return_command): Likewise. * infcall.c (call_function_by_hand): Likewise. * infrun.c (resume): Likewise. (save_inferior_status, restore_inferior_status): Likewise. * linux-fork.c (fork_load_infrun_state): Likewise. (fork_save_infrun_state): Likewise. * win32-nat.c (win32_resume): Likewise. * i386fbsd-nat.c (i386fbsd_resume): Likewise. * monitor.c (monitor_wait): Likewise. * remote.c (remote_wait): Likewise. * remote-mips.c (mips_wait): Likewise. * bsd-kvm.c (bsd_kvm_open): Likewise (bsd_kvm_proc_cmd, bsd_kvm_pcb_cmd): Likewise. * fbsd-nat.c (fbsd_make_corefile_notes): Likewise. * i386-linux-nat.c (i386_linux_resume): Likewise. * ia64-linux-nat.c (ia64_linux_insert_watchpoint): Likewise. (ia64_linux_stopped_data_address): Likewise. * frv-tdep.c (frv_fdpic_loadmap_addresses): Likewise. * m32c-tdep.c (m32c_virtual_frame_pointer): Likewise. * mep-tdep.c (current_me_module, current_options): Likewise. * mips-tdep.c (deprecated_mips_set_processor_regs_hack): Likewise. * linux-nat.c (linux_nat_do_thread_registers): Use thread regcache instead of current_regcache. Call target_fetch_registers. (linux_nat_corefile_thread_callback): Update call site. (linux_nat_do_registers): Likewise. * procfs.c (procfs_do_thread_registers): Use thread regcache instead of current_regcache. (procfs_make_note_section): Likewise. * proc-service.c (ps_lgetregs, ps_lsetregs): Likewise. (ps_lgetfpregs, ps_lsetfpregs): Likewise. * sol-thread.c (ps_lgetregs, ps_lsetregs): Likewise. (ps_lgetfpregs, ps_lsetfpregs): Likewise.
2007-06-16 19:16:26 +02:00
regset->collect_regset (regset, regcache, -1,
&gregs, sizeof (gregs));
else
* regcache.c (struct regcache): Add ptid_t member. (regcache_xmalloc): Initialize it. (regcache_cpy_no_passthrough): Do not refer to current_regcache. (regcache_dup): Likewise. (regcache_dup_no_passthrough): Likewise. (current_regcache): Make static. (registers_ptid): Remove variable. (get_thread_regcache): New function. (get_current_regcache): New function. (registers_changed): Implement by freeing current regcache. (regcache_raw_read): Do not refer to current_regcache. Set inferior_ptid to regcache->ptid while calling target routines. (regcache_raw_write): Likewise. (regcache_raw_supply): Do not refer to current_regcache. (read_pc_pid): Use thread regcache. Do not modify inferior_ptid. (write_pc_pid): Likewise. (build_regcache): Remove. (_initialize_regcache): Do not call DEPRECATED_REGISTER_GDBARCH_SWAP or deprecated_register_gdbarch_swap. Do not initialize registers_ptid. * regcache.h (get_current_regcache): Add prototype. (get_thread_regcache): Likewise. (current_regcache): Remove declaration. * corelow.c (core_open): Replace current_regcache by get_current_regcache (). * frame.c (frame_pop): Likewise. (put_frame_register): Likewise. (get_current_frame, create_new_frame): Likewise. * mi/mi-main.c (mi_cmd_data_write_register_values): Likewise. * stack.c (return_command): Likewise. * infcall.c (call_function_by_hand): Likewise. * infrun.c (resume): Likewise. (save_inferior_status, restore_inferior_status): Likewise. * linux-fork.c (fork_load_infrun_state): Likewise. (fork_save_infrun_state): Likewise. * win32-nat.c (win32_resume): Likewise. * i386fbsd-nat.c (i386fbsd_resume): Likewise. * monitor.c (monitor_wait): Likewise. * remote.c (remote_wait): Likewise. * remote-mips.c (mips_wait): Likewise. * bsd-kvm.c (bsd_kvm_open): Likewise (bsd_kvm_proc_cmd, bsd_kvm_pcb_cmd): Likewise. * fbsd-nat.c (fbsd_make_corefile_notes): Likewise. * i386-linux-nat.c (i386_linux_resume): Likewise. * ia64-linux-nat.c (ia64_linux_insert_watchpoint): Likewise. (ia64_linux_stopped_data_address): Likewise. * frv-tdep.c (frv_fdpic_loadmap_addresses): Likewise. * m32c-tdep.c (m32c_virtual_frame_pointer): Likewise. * mep-tdep.c (current_me_module, current_options): Likewise. * mips-tdep.c (deprecated_mips_set_processor_regs_hack): Likewise. * linux-nat.c (linux_nat_do_thread_registers): Use thread regcache instead of current_regcache. Call target_fetch_registers. (linux_nat_corefile_thread_callback): Update call site. (linux_nat_do_registers): Likewise. * procfs.c (procfs_do_thread_registers): Use thread regcache instead of current_regcache. (procfs_make_note_section): Likewise. * proc-service.c (ps_lgetregs, ps_lsetregs): Likewise. (ps_lgetfpregs, ps_lsetfpregs): Likewise. * sol-thread.c (ps_lgetregs, ps_lsetregs): Likewise. (ps_lgetfpregs, ps_lsetfpregs): Likewise.
2007-06-16 19:16:26 +02:00
fill_gregset (regcache, &gregs, -1);
note_data = (char *) elfcore_write_prstatus (obfd,
note_data,
note_size,
lwp,
stop_signal, &gregs);
/* The loop below uses the new struct core_regset_section, which stores
the supported section names and sizes for the core file. Note that
note PRSTATUS needs to be treated specially. But the other notes are
structurally the same, so they can benefit from the new struct. */
if (core_regset_p && sect_list != NULL)
while (sect_list->sect_name != NULL)
{
/* .reg was already handled above. */
if (strcmp (sect_list->sect_name, ".reg") == 0)
{
sect_list++;
continue;
}
regset = gdbarch_regset_from_core_section (gdbarch,
sect_list->sect_name,
sect_list->size);
gdb_assert (regset && regset->collect_regset);
gdb_regset = xmalloc (sect_list->size);
regset->collect_regset (regset, regcache, -1,
gdb_regset, sect_list->size);
note_data = (char *) elfcore_write_register_note (obfd,
note_data,
note_size,
sect_list->sect_name,
gdb_regset,
sect_list->size);
xfree (gdb_regset);
sect_list++;
}
/* For architectures that does not have the struct core_regset_section
implemented, we use the old method. When all the architectures have
the new support, the code below should be deleted. */
else
{
if (core_regset_p
&& (regset = gdbarch_regset_from_core_section (gdbarch, ".reg2",
sizeof (fpregs))) != NULL
&& regset->collect_regset != NULL)
regset->collect_regset (regset, regcache, -1,
&fpregs, sizeof (fpregs));
else
fill_fpregset (regcache, &fpregs, -1);
note_data = (char *) elfcore_write_prfpreg (obfd,
note_data,
note_size,
&fpregs, sizeof (fpregs));
}
return note_data;
}
struct linux_nat_corefile_thread_data
{
bfd *obfd;
char *note_data;
int *note_size;
int num_notes;
Remove the global stop_signal in favour of a per-thread stop_signal. * inferior.h (stop_signal): Delete. * gdbthread.h (save_infrun_state, load_infrun_state): Remove stop_signal argument. * thread.c (load_infrun_state, save_infrun_state): Remove stop_signal argument. Don't reference it. * infcmd.c (stop_signal): Delete. (program_info): Adjust. * infrun.c (resume): Clear stop_signal. (proceed): Adjust. Pass the last stop_signal to the thread we're resuming. (context_switch): Don't context-switch stop_signal. (handle_inferior_event, keep_going): Adjust. (save_inferior_status, restore_inferior_status): Adjust. * fbsd-nat.c: Include "gdbthread.h". (find_signalled_thread, find_stop_signal): New. (fbsd_make_corefile_notes): Use it. * fork-child.c (startup_inferior): Adjust. * linux-nat.c (get_pending_status): Adjust. (linux_nat_do_thread_registers): Adjust. (find_signalled_thread, find_stop_signal): New. (linux_nat_do_thread_registers): Add stop_signal parameter. (struct linux_nat_corefile_thread_data): Add stop_signal member. (linux_nat_corefile_thread_callback): Pass stop_signal. (linux_nat_do_registers): Delete. (linux_nat_make_corefile_notes): Use find_stop_signal. Assume there's always a thread. * procfs.c (find_signalled_thread, find_stop_signal): New. (find_stop_signal): New. (procfs_do_thread_registers): Add stop_signal parameter. (struct procfs_corefile_thread_data): Add stop_signal member. (procfs_corefile_thread_callback): Pass args->stop_signal. (procfs_make_note_section): Find the last stop_signal. * solib-irix.c: Include gdbthread.h. (irix_solib_create_inferior_hook): Adjust. * solib-osf.c: Include gdbthread.h. (osf_solib_create_inferior_hook): Adjust. * solib-sunos.c: Include gdbthread.h. (sunos_solib_create_inferior_hook): Adjust. * solib-svr4.c: Include gdbthread.h. (svr4_solib_create_inferior_hook): Adjust. * win32-nat.c (do_initial_win32_stuff): Adjust.
2008-09-08 23:51:18 +02:00
enum target_signal stop_signal;
};
/* Called by gdbthread.c once per thread. Records the thread's
register state for the corefile note section. */
static int
linux_nat_corefile_thread_callback (struct lwp_info *ti, void *data)
{
struct linux_nat_corefile_thread_data *args = data;
args->note_data = linux_nat_do_thread_registers (args->obfd,
ti->ptid,
args->note_data,
Remove the global stop_signal in favour of a per-thread stop_signal. * inferior.h (stop_signal): Delete. * gdbthread.h (save_infrun_state, load_infrun_state): Remove stop_signal argument. * thread.c (load_infrun_state, save_infrun_state): Remove stop_signal argument. Don't reference it. * infcmd.c (stop_signal): Delete. (program_info): Adjust. * infrun.c (resume): Clear stop_signal. (proceed): Adjust. Pass the last stop_signal to the thread we're resuming. (context_switch): Don't context-switch stop_signal. (handle_inferior_event, keep_going): Adjust. (save_inferior_status, restore_inferior_status): Adjust. * fbsd-nat.c: Include "gdbthread.h". (find_signalled_thread, find_stop_signal): New. (fbsd_make_corefile_notes): Use it. * fork-child.c (startup_inferior): Adjust. * linux-nat.c (get_pending_status): Adjust. (linux_nat_do_thread_registers): Adjust. (find_signalled_thread, find_stop_signal): New. (linux_nat_do_thread_registers): Add stop_signal parameter. (struct linux_nat_corefile_thread_data): Add stop_signal member. (linux_nat_corefile_thread_callback): Pass stop_signal. (linux_nat_do_registers): Delete. (linux_nat_make_corefile_notes): Use find_stop_signal. Assume there's always a thread. * procfs.c (find_signalled_thread, find_stop_signal): New. (find_stop_signal): New. (procfs_do_thread_registers): Add stop_signal parameter. (struct procfs_corefile_thread_data): Add stop_signal member. (procfs_corefile_thread_callback): Pass args->stop_signal. (procfs_make_note_section): Find the last stop_signal. * solib-irix.c: Include gdbthread.h. (irix_solib_create_inferior_hook): Adjust. * solib-osf.c: Include gdbthread.h. (osf_solib_create_inferior_hook): Adjust. * solib-sunos.c: Include gdbthread.h. (sunos_solib_create_inferior_hook): Adjust. * solib-svr4.c: Include gdbthread.h. (svr4_solib_create_inferior_hook): Adjust. * win32-nat.c (do_initial_win32_stuff): Adjust.
2008-09-08 23:51:18 +02:00
args->note_size,
args->stop_signal);
args->num_notes++;
* 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
return 0;
}
/* Fills the "to_make_corefile_note" target vector. Builds the note
section for a corefile, and returns it in a malloc buffer. */
static char *
linux_nat_make_corefile_notes (bfd *obfd, int *note_size)
{
struct linux_nat_corefile_thread_data thread_args;
struct cleanup *old_chain;
/* The variable size must be >= sizeof (prpsinfo_t.pr_fname). */
char fname[16] = { '\0' };
/* The variable size must be >= sizeof (prpsinfo_t.pr_psargs). */
char psargs[80] = { '\0' };
char *note_data = NULL;
ptid_t current_ptid = inferior_ptid;
gdb_byte *auxv;
int auxv_len;
if (get_exec_file (0))
{
strncpy (fname, strrchr (get_exec_file (0), '/') + 1, sizeof (fname));
strncpy (psargs, get_exec_file (0), sizeof (psargs));
if (get_inferior_args ())
{
char *string_end;
char *psargs_end = psargs + sizeof (psargs);
/* linux_elfcore_write_prpsinfo () handles zero unterminated
strings fine. */
string_end = memchr (psargs, 0, sizeof (psargs));
if (string_end != NULL)
{
*string_end++ = ' ';
strncpy (string_end, get_inferior_args (),
psargs_end - string_end);
}
}
note_data = (char *) elfcore_write_prpsinfo (obfd,
note_data,
note_size, fname, psargs);
}
/* Dump information for threads. */
thread_args.obfd = obfd;
thread_args.note_data = note_data;
thread_args.note_size = note_size;
thread_args.num_notes = 0;
Remove the global stop_signal in favour of a per-thread stop_signal. * inferior.h (stop_signal): Delete. * gdbthread.h (save_infrun_state, load_infrun_state): Remove stop_signal argument. * thread.c (load_infrun_state, save_infrun_state): Remove stop_signal argument. Don't reference it. * infcmd.c (stop_signal): Delete. (program_info): Adjust. * infrun.c (resume): Clear stop_signal. (proceed): Adjust. Pass the last stop_signal to the thread we're resuming. (context_switch): Don't context-switch stop_signal. (handle_inferior_event, keep_going): Adjust. (save_inferior_status, restore_inferior_status): Adjust. * fbsd-nat.c: Include "gdbthread.h". (find_signalled_thread, find_stop_signal): New. (fbsd_make_corefile_notes): Use it. * fork-child.c (startup_inferior): Adjust. * linux-nat.c (get_pending_status): Adjust. (linux_nat_do_thread_registers): Adjust. (find_signalled_thread, find_stop_signal): New. (linux_nat_do_thread_registers): Add stop_signal parameter. (struct linux_nat_corefile_thread_data): Add stop_signal member. (linux_nat_corefile_thread_callback): Pass stop_signal. (linux_nat_do_registers): Delete. (linux_nat_make_corefile_notes): Use find_stop_signal. Assume there's always a thread. * procfs.c (find_signalled_thread, find_stop_signal): New. (find_stop_signal): New. (procfs_do_thread_registers): Add stop_signal parameter. (struct procfs_corefile_thread_data): Add stop_signal member. (procfs_corefile_thread_callback): Pass args->stop_signal. (procfs_make_note_section): Find the last stop_signal. * solib-irix.c: Include gdbthread.h. (irix_solib_create_inferior_hook): Adjust. * solib-osf.c: Include gdbthread.h. (osf_solib_create_inferior_hook): Adjust. * solib-sunos.c: Include gdbthread.h. (sunos_solib_create_inferior_hook): Adjust. * solib-svr4.c: Include gdbthread.h. (svr4_solib_create_inferior_hook): Adjust. * win32-nat.c (do_initial_win32_stuff): Adjust.
2008-09-08 23:51:18 +02:00
thread_args.stop_signal = find_stop_signal ();
iterate_over_lwps (linux_nat_corefile_thread_callback, &thread_args);
Remove the global stop_signal in favour of a per-thread stop_signal. * inferior.h (stop_signal): Delete. * gdbthread.h (save_infrun_state, load_infrun_state): Remove stop_signal argument. * thread.c (load_infrun_state, save_infrun_state): Remove stop_signal argument. Don't reference it. * infcmd.c (stop_signal): Delete. (program_info): Adjust. * infrun.c (resume): Clear stop_signal. (proceed): Adjust. Pass the last stop_signal to the thread we're resuming. (context_switch): Don't context-switch stop_signal. (handle_inferior_event, keep_going): Adjust. (save_inferior_status, restore_inferior_status): Adjust. * fbsd-nat.c: Include "gdbthread.h". (find_signalled_thread, find_stop_signal): New. (fbsd_make_corefile_notes): Use it. * fork-child.c (startup_inferior): Adjust. * linux-nat.c (get_pending_status): Adjust. (linux_nat_do_thread_registers): Adjust. (find_signalled_thread, find_stop_signal): New. (linux_nat_do_thread_registers): Add stop_signal parameter. (struct linux_nat_corefile_thread_data): Add stop_signal member. (linux_nat_corefile_thread_callback): Pass stop_signal. (linux_nat_do_registers): Delete. (linux_nat_make_corefile_notes): Use find_stop_signal. Assume there's always a thread. * procfs.c (find_signalled_thread, find_stop_signal): New. (find_stop_signal): New. (procfs_do_thread_registers): Add stop_signal parameter. (struct procfs_corefile_thread_data): Add stop_signal member. (procfs_corefile_thread_callback): Pass args->stop_signal. (procfs_make_note_section): Find the last stop_signal. * solib-irix.c: Include gdbthread.h. (irix_solib_create_inferior_hook): Adjust. * solib-osf.c: Include gdbthread.h. (osf_solib_create_inferior_hook): Adjust. * solib-sunos.c: Include gdbthread.h. (sunos_solib_create_inferior_hook): Adjust. * solib-svr4.c: Include gdbthread.h. (svr4_solib_create_inferior_hook): Adjust. * win32-nat.c (do_initial_win32_stuff): Adjust.
2008-09-08 23:51:18 +02:00
gdb_assert (thread_args.num_notes != 0);
note_data = thread_args.note_data;
auxv_len = target_read_alloc (&current_target, TARGET_OBJECT_AUXV,
NULL, &auxv);
if (auxv_len > 0)
{
note_data = elfcore_write_note (obfd, note_data, note_size,
"CORE", NT_AUXV, auxv, auxv_len);
xfree (auxv);
}
make_cleanup (xfree, note_data);
return note_data;
}
/* Implement the "info proc" command. */
static void
linux_nat_info_proc_cmd (char *args, int from_tty)
{
long long pid = PIDGET (inferior_ptid);
FILE *procfile;
char **argv = NULL;
char buffer[MAXPATHLEN];
char fname1[MAXPATHLEN], fname2[MAXPATHLEN];
int cmdline_f = 1;
int cwd_f = 1;
int exe_f = 1;
int mappings_f = 0;
int environ_f = 0;
int status_f = 0;
int stat_f = 0;
int all = 0;
struct stat dummy;
if (args)
{
/* Break up 'args' into an argv array. */
argv = gdb_buildargv (args);
make_cleanup_freeargv (argv);
}
while (argv != NULL && *argv != NULL)
{
if (isdigit (argv[0][0]))
{
pid = strtoul (argv[0], NULL, 10);
}
else if (strncmp (argv[0], "mappings", strlen (argv[0])) == 0)
{
mappings_f = 1;
}
else if (strcmp (argv[0], "status") == 0)
{
status_f = 1;
}
else if (strcmp (argv[0], "stat") == 0)
{
stat_f = 1;
}
else if (strcmp (argv[0], "cmd") == 0)
{
cmdline_f = 1;
}
else if (strncmp (argv[0], "exe", strlen (argv[0])) == 0)
{
exe_f = 1;
}
else if (strcmp (argv[0], "cwd") == 0)
{
cwd_f = 1;
}
else if (strncmp (argv[0], "all", strlen (argv[0])) == 0)
{
all = 1;
}
else
{
/* [...] (future options here) */
}
argv++;
}
if (pid == 0)
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 (_("No current process: you must name one."));
sprintf (fname1, "/proc/%lld", pid);
if (stat (fname1, &dummy) != 0)
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 (_("No /proc directory: '%s'"), fname1);
printf_filtered (_("process %lld\n"), pid);
if (cmdline_f || all)
{
sprintf (fname1, "/proc/%lld/cmdline", pid);
Warning fixes. * ada-lang.c (find_struct_field): Initialize *byte_offset_p. * breakpoint.c (do_enable_breakpoint): Ignore both mem_cnt and i. * c-typeprint.c (c_type_print_varspec_suffix): Don't test length greater than or equal to zero. * m2-typeprint.c (m2_array): Likewise. * p-typeprint.c (pascal_type_print_varspec_prefix): Likewise. * gdbtypes.c (copy_type_recursive): Correct == typo. * i386-tdep.c (i386_skip_prologue): Remove stray semicolon. * linux-nat.c (linux_nat_info_proc_cmd): Don't compare a pointer greater than zero. * macroscope.c (sal_macro_scope): Don't name a local variable "main". (default_macro_scope): Remove unused variable. * prologue-value.h (pv_area_find_reg): Don't name an argument "register". * remote-fileio.c (remote_fio_func_map): Add missing braces. * remote.c (sigint_remote_twice_token, sigint_remote_token): Change type. (cleanup_sigint_signal_handler): Remove casts. * valprint.c (val_print): Use a volatile local for the modified argument. * varobj.c (languages): Remove extra array dimension. (varobj_create): Correct access to languages array. * mi/mi-cmd-break.c (mi_cmd_break_insert, mi_cmd_break_watch): Add missing braces. * mi/mi-cmd-disas.c (mi_cmd_disassemble): Likewise. * mi/mi-cmd-env.c (mi_cmd_env_path, mi_cmd_env_dir): Likewise. * mi/mi-getopt.c (mi_valid_noargs): Likewise. * mi/mi-main.c (mi_cmd_data_read_memory): Likewise. (mi_cmd_data_write_memory): Likewise. * signals/signals.c (target_signal_to_string): Cast to int before comparing. * tui/tui-layout.c (init_and_make_win): Take and return a void *. Update all callers.
2007-01-03 20:01:25 +01:00
if ((procfile = fopen (fname1, "r")) != NULL)
{
struct cleanup *cleanup = make_cleanup_fclose (procfile);
if (fgets (buffer, sizeof (buffer), procfile))
printf_filtered ("cmdline = '%s'\n", buffer);
else
warning (_("unable to read '%s'"), fname1);
do_cleanups (cleanup);
}
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
warning (_("unable to open /proc file '%s'"), fname1);
}
if (cwd_f || all)
{
sprintf (fname1, "/proc/%lld/cwd", pid);
memset (fname2, 0, sizeof (fname2));
if (readlink (fname1, fname2, sizeof (fname2)) > 0)
printf_filtered ("cwd = '%s'\n", fname2);
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
warning (_("unable to read link '%s'"), fname1);
}
if (exe_f || all)
{
sprintf (fname1, "/proc/%lld/exe", pid);
memset (fname2, 0, sizeof (fname2));
if (readlink (fname1, fname2, sizeof (fname2)) > 0)
printf_filtered ("exe = '%s'\n", fname2);
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
warning (_("unable to read link '%s'"), fname1);
}
if (mappings_f || all)
{
sprintf (fname1, "/proc/%lld/maps", pid);
Warning fixes. * ada-lang.c (find_struct_field): Initialize *byte_offset_p. * breakpoint.c (do_enable_breakpoint): Ignore both mem_cnt and i. * c-typeprint.c (c_type_print_varspec_suffix): Don't test length greater than or equal to zero. * m2-typeprint.c (m2_array): Likewise. * p-typeprint.c (pascal_type_print_varspec_prefix): Likewise. * gdbtypes.c (copy_type_recursive): Correct == typo. * i386-tdep.c (i386_skip_prologue): Remove stray semicolon. * linux-nat.c (linux_nat_info_proc_cmd): Don't compare a pointer greater than zero. * macroscope.c (sal_macro_scope): Don't name a local variable "main". (default_macro_scope): Remove unused variable. * prologue-value.h (pv_area_find_reg): Don't name an argument "register". * remote-fileio.c (remote_fio_func_map): Add missing braces. * remote.c (sigint_remote_twice_token, sigint_remote_token): Change type. (cleanup_sigint_signal_handler): Remove casts. * valprint.c (val_print): Use a volatile local for the modified argument. * varobj.c (languages): Remove extra array dimension. (varobj_create): Correct access to languages array. * mi/mi-cmd-break.c (mi_cmd_break_insert, mi_cmd_break_watch): Add missing braces. * mi/mi-cmd-disas.c (mi_cmd_disassemble): Likewise. * mi/mi-cmd-env.c (mi_cmd_env_path, mi_cmd_env_dir): Likewise. * mi/mi-getopt.c (mi_valid_noargs): Likewise. * mi/mi-main.c (mi_cmd_data_read_memory): Likewise. (mi_cmd_data_write_memory): Likewise. * signals/signals.c (target_signal_to_string): Cast to int before comparing. * tui/tui-layout.c (init_and_make_win): Take and return a void *. Update all callers.
2007-01-03 20:01:25 +01:00
if ((procfile = fopen (fname1, "r")) != NULL)
{
long long addr, endaddr, size, offset, inode;
char permissions[8], device[8], filename[MAXPATHLEN];
struct cleanup *cleanup;
cleanup = make_cleanup_fclose (procfile);
printf_filtered (_("Mapped address spaces:\n\n"));
if (gdbarch_addr_bit (current_gdbarch) == 32)
{
printf_filtered ("\t%10s %10s %10s %10s %7s\n",
"Start Addr",
" End Addr",
" Size", " Offset", "objfile");
}
else
{
printf_filtered (" %18s %18s %10s %10s %7s\n",
"Start Addr",
" End Addr",
" Size", " Offset", "objfile");
}
while (read_mapping (procfile, &addr, &endaddr, &permissions[0],
&offset, &device[0], &inode, &filename[0]))
{
size = endaddr - addr;
/* FIXME: carlton/2003-08-27: Maybe the printf_filtered
calls here (and possibly above) should be abstracted
out into their own functions? Andrew suggests using
a generic local_address_string instead to print out
the addresses; that makes sense to me, too. */
if (gdbarch_addr_bit (current_gdbarch) == 32)
{
printf_filtered ("\t%#10lx %#10lx %#10x %#10x %7s\n",
(unsigned long) addr, /* FIXME: pr_addr */
(unsigned long) endaddr,
(int) size,
(unsigned int) offset,
filename[0] ? filename : "");
}
else
{
printf_filtered (" %#18lx %#18lx %#10x %#10x %7s\n",
(unsigned long) addr, /* FIXME: pr_addr */
(unsigned long) endaddr,
(int) size,
(unsigned int) offset,
filename[0] ? filename : "");
}
}
do_cleanups (cleanup);
}
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
warning (_("unable to open /proc file '%s'"), fname1);
}
if (status_f || all)
{
sprintf (fname1, "/proc/%lld/status", pid);
Warning fixes. * ada-lang.c (find_struct_field): Initialize *byte_offset_p. * breakpoint.c (do_enable_breakpoint): Ignore both mem_cnt and i. * c-typeprint.c (c_type_print_varspec_suffix): Don't test length greater than or equal to zero. * m2-typeprint.c (m2_array): Likewise. * p-typeprint.c (pascal_type_print_varspec_prefix): Likewise. * gdbtypes.c (copy_type_recursive): Correct == typo. * i386-tdep.c (i386_skip_prologue): Remove stray semicolon. * linux-nat.c (linux_nat_info_proc_cmd): Don't compare a pointer greater than zero. * macroscope.c (sal_macro_scope): Don't name a local variable "main". (default_macro_scope): Remove unused variable. * prologue-value.h (pv_area_find_reg): Don't name an argument "register". * remote-fileio.c (remote_fio_func_map): Add missing braces. * remote.c (sigint_remote_twice_token, sigint_remote_token): Change type. (cleanup_sigint_signal_handler): Remove casts. * valprint.c (val_print): Use a volatile local for the modified argument. * varobj.c (languages): Remove extra array dimension. (varobj_create): Correct access to languages array. * mi/mi-cmd-break.c (mi_cmd_break_insert, mi_cmd_break_watch): Add missing braces. * mi/mi-cmd-disas.c (mi_cmd_disassemble): Likewise. * mi/mi-cmd-env.c (mi_cmd_env_path, mi_cmd_env_dir): Likewise. * mi/mi-getopt.c (mi_valid_noargs): Likewise. * mi/mi-main.c (mi_cmd_data_read_memory): Likewise. (mi_cmd_data_write_memory): Likewise. * signals/signals.c (target_signal_to_string): Cast to int before comparing. * tui/tui-layout.c (init_and_make_win): Take and return a void *. Update all callers.
2007-01-03 20:01:25 +01:00
if ((procfile = fopen (fname1, "r")) != NULL)
{
struct cleanup *cleanup = make_cleanup_fclose (procfile);
while (fgets (buffer, sizeof (buffer), procfile) != NULL)
puts_filtered (buffer);
do_cleanups (cleanup);
}
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
warning (_("unable to open /proc file '%s'"), fname1);
}
if (stat_f || all)
{
sprintf (fname1, "/proc/%lld/stat", pid);
Warning fixes. * ada-lang.c (find_struct_field): Initialize *byte_offset_p. * breakpoint.c (do_enable_breakpoint): Ignore both mem_cnt and i. * c-typeprint.c (c_type_print_varspec_suffix): Don't test length greater than or equal to zero. * m2-typeprint.c (m2_array): Likewise. * p-typeprint.c (pascal_type_print_varspec_prefix): Likewise. * gdbtypes.c (copy_type_recursive): Correct == typo. * i386-tdep.c (i386_skip_prologue): Remove stray semicolon. * linux-nat.c (linux_nat_info_proc_cmd): Don't compare a pointer greater than zero. * macroscope.c (sal_macro_scope): Don't name a local variable "main". (default_macro_scope): Remove unused variable. * prologue-value.h (pv_area_find_reg): Don't name an argument "register". * remote-fileio.c (remote_fio_func_map): Add missing braces. * remote.c (sigint_remote_twice_token, sigint_remote_token): Change type. (cleanup_sigint_signal_handler): Remove casts. * valprint.c (val_print): Use a volatile local for the modified argument. * varobj.c (languages): Remove extra array dimension. (varobj_create): Correct access to languages array. * mi/mi-cmd-break.c (mi_cmd_break_insert, mi_cmd_break_watch): Add missing braces. * mi/mi-cmd-disas.c (mi_cmd_disassemble): Likewise. * mi/mi-cmd-env.c (mi_cmd_env_path, mi_cmd_env_dir): Likewise. * mi/mi-getopt.c (mi_valid_noargs): Likewise. * mi/mi-main.c (mi_cmd_data_read_memory): Likewise. (mi_cmd_data_write_memory): Likewise. * signals/signals.c (target_signal_to_string): Cast to int before comparing. * tui/tui-layout.c (init_and_make_win): Take and return a void *. Update all callers.
2007-01-03 20:01:25 +01:00
if ((procfile = fopen (fname1, "r")) != NULL)
{
int itmp;
char ctmp;
long ltmp;
struct cleanup *cleanup = make_cleanup_fclose (procfile);
if (fscanf (procfile, "%d ", &itmp) > 0)
printf_filtered (_("Process: %d\n"), itmp);
if (fscanf (procfile, "(%[^)]) ", &buffer[0]) > 0)
printf_filtered (_("Exec file: %s\n"), buffer);
if (fscanf (procfile, "%c ", &ctmp) > 0)
printf_filtered (_("State: %c\n"), ctmp);
if (fscanf (procfile, "%d ", &itmp) > 0)
printf_filtered (_("Parent process: %d\n"), itmp);
if (fscanf (procfile, "%d ", &itmp) > 0)
printf_filtered (_("Process group: %d\n"), itmp);
if (fscanf (procfile, "%d ", &itmp) > 0)
printf_filtered (_("Session id: %d\n"), itmp);
if (fscanf (procfile, "%d ", &itmp) > 0)
printf_filtered (_("TTY: %d\n"), itmp);
if (fscanf (procfile, "%d ", &itmp) > 0)
printf_filtered (_("TTY owner process group: %d\n"), itmp);
if (fscanf (procfile, "%lu ", &ltmp) > 0)
printf_filtered (_("Flags: 0x%lx\n"), ltmp);
if (fscanf (procfile, "%lu ", &ltmp) > 0)
printf_filtered (_("Minor faults (no memory page): %lu\n"),
(unsigned long) ltmp);
if (fscanf (procfile, "%lu ", &ltmp) > 0)
printf_filtered (_("Minor faults, children: %lu\n"),
(unsigned long) ltmp);
if (fscanf (procfile, "%lu ", &ltmp) > 0)
printf_filtered (_("Major faults (memory page faults): %lu\n"),
(unsigned long) ltmp);
if (fscanf (procfile, "%lu ", &ltmp) > 0)
printf_filtered (_("Major faults, children: %lu\n"),
(unsigned long) ltmp);
if (fscanf (procfile, "%ld ", &ltmp) > 0)
printf_filtered (_("utime: %ld\n"), ltmp);
if (fscanf (procfile, "%ld ", &ltmp) > 0)
printf_filtered (_("stime: %ld\n"), ltmp);
if (fscanf (procfile, "%ld ", &ltmp) > 0)
printf_filtered (_("utime, children: %ld\n"), ltmp);
if (fscanf (procfile, "%ld ", &ltmp) > 0)
printf_filtered (_("stime, children: %ld\n"), ltmp);
if (fscanf (procfile, "%ld ", &ltmp) > 0)
printf_filtered (_("jiffies remaining in current time slice: %ld\n"),
ltmp);
if (fscanf (procfile, "%ld ", &ltmp) > 0)
printf_filtered (_("'nice' value: %ld\n"), ltmp);
if (fscanf (procfile, "%lu ", &ltmp) > 0)
printf_filtered (_("jiffies until next timeout: %lu\n"),
(unsigned long) ltmp);
if (fscanf (procfile, "%lu ", &ltmp) > 0)
printf_filtered (_("jiffies until next SIGALRM: %lu\n"),
(unsigned long) ltmp);
if (fscanf (procfile, "%ld ", &ltmp) > 0)
printf_filtered (_("start time (jiffies since system boot): %ld\n"),
ltmp);
if (fscanf (procfile, "%lu ", &ltmp) > 0)
printf_filtered (_("Virtual memory size: %lu\n"),
(unsigned long) ltmp);
if (fscanf (procfile, "%lu ", &ltmp) > 0)
printf_filtered (_("Resident set size: %lu\n"), (unsigned long) ltmp);
if (fscanf (procfile, "%lu ", &ltmp) > 0)
printf_filtered (_("rlim: %lu\n"), (unsigned long) ltmp);
if (fscanf (procfile, "%lu ", &ltmp) > 0)
printf_filtered (_("Start of text: 0x%lx\n"), ltmp);
if (fscanf (procfile, "%lu ", &ltmp) > 0)
printf_filtered (_("End of text: 0x%lx\n"), ltmp);
if (fscanf (procfile, "%lu ", &ltmp) > 0)
printf_filtered (_("Start of stack: 0x%lx\n"), ltmp);
#if 0 /* Don't know how architecture-dependent the rest is...
Anyway the signal bitmap info is available from "status". */
if (fscanf (procfile, "%lu ", &ltmp) > 0) /* FIXME arch? */
printf_filtered (_("Kernel stack pointer: 0x%lx\n"), ltmp);
if (fscanf (procfile, "%lu ", &ltmp) > 0) /* FIXME arch? */
printf_filtered (_("Kernel instr pointer: 0x%lx\n"), ltmp);
if (fscanf (procfile, "%ld ", &ltmp) > 0)
printf_filtered (_("Pending signals bitmap: 0x%lx\n"), ltmp);
if (fscanf (procfile, "%ld ", &ltmp) > 0)
printf_filtered (_("Blocked signals bitmap: 0x%lx\n"), ltmp);
if (fscanf (procfile, "%ld ", &ltmp) > 0)
printf_filtered (_("Ignored signals bitmap: 0x%lx\n"), ltmp);
if (fscanf (procfile, "%ld ", &ltmp) > 0)
printf_filtered (_("Catched signals bitmap: 0x%lx\n"), ltmp);
if (fscanf (procfile, "%lu ", &ltmp) > 0) /* FIXME arch? */
printf_filtered (_("wchan (system call): 0x%lx\n"), ltmp);
#endif
do_cleanups (cleanup);
}
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
warning (_("unable to open /proc file '%s'"), fname1);
}
}
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
/* Implement the to_xfer_partial interface for memory reads using the /proc
filesystem. Because we can use a single read() call for /proc, this
can be much more efficient than banging away at PTRACE_PEEKTEXT,
but it doesn't support writes. */
static LONGEST
linux_proc_xfer_partial (struct target_ops *ops, enum target_object object,
const char *annex, gdb_byte *readbuf,
const gdb_byte *writebuf,
ULONGEST offset, LONGEST len)
{
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
LONGEST ret;
int fd;
char filename[64];
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
if (object != TARGET_OBJECT_MEMORY || !readbuf)
return 0;
/* Don't bother for one word. */
if (len < 3 * sizeof (long))
return 0;
/* We could keep this file open and cache it - possibly one per
thread. That requires some juggling, but is even faster. */
sprintf (filename, "/proc/%d/mem", PIDGET (inferior_ptid));
fd = open (filename, O_RDONLY | O_LARGEFILE);
if (fd == -1)
return 0;
/* If pread64 is available, use it. It's faster if the kernel
supports it (only one syscall), and it's 64-bit safe even on
32-bit platforms (for instance, SPARC debugging a SPARC64
application). */
#ifdef HAVE_PREAD64
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
if (pread64 (fd, readbuf, len, offset) != len)
#else
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
if (lseek (fd, offset, SEEK_SET) == -1 || read (fd, readbuf, len) != len)
#endif
ret = 0;
else
ret = len;
close (fd);
return ret;
}
/* Parse LINE as a signal set and add its set bits to SIGS. */
static void
add_line_to_sigset (const char *line, sigset_t *sigs)
{
int len = strlen (line) - 1;
const char *p;
int signum;
if (line[len] != '\n')
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 (_("Could not parse signal set: %s"), line);
p = line;
signum = len * 4;
while (len-- > 0)
{
int digit;
if (*p >= '0' && *p <= '9')
digit = *p - '0';
else if (*p >= 'a' && *p <= 'f')
digit = *p - 'a' + 10;
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 (_("Could not parse signal set: %s"), line);
signum -= 4;
if (digit & 1)
sigaddset (sigs, signum + 1);
if (digit & 2)
sigaddset (sigs, signum + 2);
if (digit & 4)
sigaddset (sigs, signum + 3);
if (digit & 8)
sigaddset (sigs, signum + 4);
p++;
}
}
/* Find process PID's pending signals from /proc/pid/status and set
SIGS to match. */
void
linux_proc_pending_signals (int pid, sigset_t *pending, sigset_t *blocked, sigset_t *ignored)
{
FILE *procfile;
char buffer[MAXPATHLEN], fname[MAXPATHLEN];
int signum;
struct cleanup *cleanup;
sigemptyset (pending);
sigemptyset (blocked);
sigemptyset (ignored);
sprintf (fname, "/proc/%d/status", pid);
procfile = fopen (fname, "r");
if (procfile == NULL)
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 (_("Could not open %s"), fname);
cleanup = make_cleanup_fclose (procfile);
while (fgets (buffer, MAXPATHLEN, procfile) != NULL)
{
/* Normal queued signals are on the SigPnd line in the status
file. However, 2.6 kernels also have a "shared" pending
queue for delivering signals to a thread group, so check for
a ShdPnd line also.
Unfortunately some Red Hat kernels include the shared pending
queue but not the ShdPnd status field. */
if (strncmp (buffer, "SigPnd:\t", 8) == 0)
add_line_to_sigset (buffer + 8, pending);
else if (strncmp (buffer, "ShdPnd:\t", 8) == 0)
add_line_to_sigset (buffer + 8, pending);
else if (strncmp (buffer, "SigBlk:\t", 8) == 0)
add_line_to_sigset (buffer + 8, blocked);
else if (strncmp (buffer, "SigIgn:\t", 8) == 0)
add_line_to_sigset (buffer + 8, ignored);
}
do_cleanups (cleanup);
}
static LONGEST
linux_nat_xfer_osdata (struct target_ops *ops, enum target_object object,
const char *annex, gdb_byte *readbuf,
const gdb_byte *writebuf, ULONGEST offset, LONGEST len)
{
/* We make the process list snapshot when the object starts to be
read. */
static const char *buf;
static LONGEST len_avail = -1;
static struct obstack obstack;
DIR *dirp;
gdb_assert (object == TARGET_OBJECT_OSDATA);
if (strcmp (annex, "processes") != 0)
return 0;
gdb_assert (readbuf && !writebuf);
if (offset == 0)
{
if (len_avail != -1 && len_avail != 0)
obstack_free (&obstack, NULL);
len_avail = 0;
buf = NULL;
obstack_init (&obstack);
obstack_grow_str (&obstack, "<osdata type=\"processes\">\n");
dirp = opendir ("/proc");
if (dirp)
{
struct dirent *dp;
while ((dp = readdir (dirp)) != NULL)
{
struct stat statbuf;
char procentry[sizeof ("/proc/4294967295")];
if (!isdigit (dp->d_name[0])
|| strlen (dp->d_name) > sizeof ("4294967295") - 1)
continue;
sprintf (procentry, "/proc/%s", dp->d_name);
if (stat (procentry, &statbuf) == 0
&& S_ISDIR (statbuf.st_mode))
{
char *pathname;
FILE *f;
char cmd[MAXPATHLEN + 1];
struct passwd *entry;
pathname = xstrprintf ("/proc/%s/cmdline", dp->d_name);
entry = getpwuid (statbuf.st_uid);
if ((f = fopen (pathname, "r")) != NULL)
{
size_t len = fread (cmd, 1, sizeof (cmd) - 1, f);
if (len > 0)
{
int i;
for (i = 0; i < len; i++)
if (cmd[i] == '\0')
cmd[i] = ' ';
cmd[len] = '\0';
obstack_xml_printf (
&obstack,
"<item>"
"<column name=\"pid\">%s</column>"
"<column name=\"user\">%s</column>"
"<column name=\"command\">%s</column>"
"</item>",
dp->d_name,
entry ? entry->pw_name : "?",
cmd);
}
fclose (f);
}
xfree (pathname);
}
}
closedir (dirp);
}
obstack_grow_str0 (&obstack, "</osdata>\n");
buf = obstack_finish (&obstack);
len_avail = strlen (buf);
}
if (offset >= len_avail)
{
/* Done. Get rid of the obstack. */
obstack_free (&obstack, NULL);
buf = NULL;
len_avail = 0;
return 0;
}
if (len > len_avail - offset)
len = len_avail - offset;
memcpy (readbuf, buf + offset, len);
return len;
}
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
static LONGEST
linux_xfer_partial (struct target_ops *ops, enum target_object object,
const char *annex, gdb_byte *readbuf,
const gdb_byte *writebuf, ULONGEST offset, LONGEST len)
{
LONGEST xfer;
if (object == TARGET_OBJECT_AUXV)
return procfs_xfer_auxv (ops, object, annex, readbuf, writebuf,
offset, len);
if (object == TARGET_OBJECT_OSDATA)
return linux_nat_xfer_osdata (ops, object, annex, readbuf, writebuf,
offset, len);
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
xfer = linux_proc_xfer_partial (ops, object, annex, readbuf, writebuf,
offset, len);
if (xfer != 0)
return xfer;
return super_xfer_partial (ops, object, annex, readbuf, writebuf,
offset, len);
}
/* Create a prototype generic GNU/Linux target. The client can override
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
it with local methods. */
* linux-nat.c (linux_register_u_offset): Remove. (linux_target_install_ops): New function. (linux_target): Use it. (linux_trad_target): New function. * linux-nat.h (linux_trad_target): Declare. * alpha-linux-nat.c: Include "gdbcore.h". (alpha_linux_register_u_offset): New function. (_initialize_alpha_linux_nat): Use linux_trad_target. * mips-linux-nat.c: Include "gdbcore.h". (mips_linux_register_u_offset): New function. (_initialize_mips_linux_nat): Use linux_trad_target. * config/arm/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/arm/nm-linux.h: Delete file. * config/i386/nm-linux64.h (FETCH_INFERIOR_REGISTERS): Remove. * config/i386/nm-linux.h (FETCH_INFERIOR_REGISTERS): Remove. * config/ia64/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/ia64/nm-linux.h: Delete file. * config/m32r/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/m32r/nm-linux.h: Delete file. * config/m68k/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/m68k/nm-linux.h: Delete file. * config/pa/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/pa/nm-linux.h: Delete file. * config/powerpc/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/powerpc/ppc64-linux.mh (NAT_FILE): Likewise. * config/powerpc/nm-linux.h: Delete file. * config/s390/s390.mh (NAT_FILE): Set to config/nm-linux.h. * config/s390/nm-linux.h: Delete file. * config/sparc/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/sparc/linux64.mh (NAT_FILE): Likewise. * config/sparc/nm-linux.h: Delete file. * Makefile.in (alpha-linux-nat.o): Update dependencies. (mips-linux-nat.o): Likewise.
2007-04-26 00:17:48 +02:00
static void
linux_target_install_ops (struct target_ops *t)
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
{
t->to_insert_fork_catchpoint = linux_child_insert_fork_catchpoint;
t->to_insert_vfork_catchpoint = linux_child_insert_vfork_catchpoint;
t->to_insert_exec_catchpoint = linux_child_insert_exec_catchpoint;
t->to_pid_to_exec_file = linux_child_pid_to_exec_file;
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
t->to_post_startup_inferior = linux_child_post_startup_inferior;
t->to_post_attach = linux_child_post_attach;
t->to_follow_fork = linux_child_follow_fork;
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
t->to_find_memory_regions = linux_nat_find_memory_regions;
t->to_make_corefile_notes = linux_nat_make_corefile_notes;
super_xfer_partial = t->to_xfer_partial;
t->to_xfer_partial = linux_xfer_partial;
* linux-nat.c (linux_register_u_offset): Remove. (linux_target_install_ops): New function. (linux_target): Use it. (linux_trad_target): New function. * linux-nat.h (linux_trad_target): Declare. * alpha-linux-nat.c: Include "gdbcore.h". (alpha_linux_register_u_offset): New function. (_initialize_alpha_linux_nat): Use linux_trad_target. * mips-linux-nat.c: Include "gdbcore.h". (mips_linux_register_u_offset): New function. (_initialize_mips_linux_nat): Use linux_trad_target. * config/arm/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/arm/nm-linux.h: Delete file. * config/i386/nm-linux64.h (FETCH_INFERIOR_REGISTERS): Remove. * config/i386/nm-linux.h (FETCH_INFERIOR_REGISTERS): Remove. * config/ia64/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/ia64/nm-linux.h: Delete file. * config/m32r/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/m32r/nm-linux.h: Delete file. * config/m68k/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/m68k/nm-linux.h: Delete file. * config/pa/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/pa/nm-linux.h: Delete file. * config/powerpc/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/powerpc/ppc64-linux.mh (NAT_FILE): Likewise. * config/powerpc/nm-linux.h: Delete file. * config/s390/s390.mh (NAT_FILE): Set to config/nm-linux.h. * config/s390/nm-linux.h: Delete file. * config/sparc/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/sparc/linux64.mh (NAT_FILE): Likewise. * config/sparc/nm-linux.h: Delete file. * Makefile.in (alpha-linux-nat.o): Update dependencies. (mips-linux-nat.o): Likewise.
2007-04-26 00:17:48 +02:00
}
struct target_ops *
linux_target (void)
{
struct target_ops *t;
t = inf_ptrace_target ();
linux_target_install_ops (t);
return t;
}
struct target_ops *
linux_trad_target (CORE_ADDR (*register_u_offset)(struct gdbarch *, int, int))
* linux-nat.c (linux_register_u_offset): Remove. (linux_target_install_ops): New function. (linux_target): Use it. (linux_trad_target): New function. * linux-nat.h (linux_trad_target): Declare. * alpha-linux-nat.c: Include "gdbcore.h". (alpha_linux_register_u_offset): New function. (_initialize_alpha_linux_nat): Use linux_trad_target. * mips-linux-nat.c: Include "gdbcore.h". (mips_linux_register_u_offset): New function. (_initialize_mips_linux_nat): Use linux_trad_target. * config/arm/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/arm/nm-linux.h: Delete file. * config/i386/nm-linux64.h (FETCH_INFERIOR_REGISTERS): Remove. * config/i386/nm-linux.h (FETCH_INFERIOR_REGISTERS): Remove. * config/ia64/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/ia64/nm-linux.h: Delete file. * config/m32r/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/m32r/nm-linux.h: Delete file. * config/m68k/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/m68k/nm-linux.h: Delete file. * config/pa/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/pa/nm-linux.h: Delete file. * config/powerpc/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/powerpc/ppc64-linux.mh (NAT_FILE): Likewise. * config/powerpc/nm-linux.h: Delete file. * config/s390/s390.mh (NAT_FILE): Set to config/nm-linux.h. * config/s390/nm-linux.h: Delete file. * config/sparc/linux.mh (NAT_FILE): Set to config/nm-linux.h. * config/sparc/linux64.mh (NAT_FILE): Likewise. * config/sparc/nm-linux.h: Delete file. * Makefile.in (alpha-linux-nat.o): Update dependencies. (mips-linux-nat.o): Likewise.
2007-04-26 00:17:48 +02:00
{
struct target_ops *t;
t = inf_ptrace_trad_target (register_u_offset);
linux_target_install_ops (t);
* Makefile.in (ALLDEPFILES): Update. (alpha-linux-nat.o, sparc-linux-nat.o): New rules. (amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o) (i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o) (m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o) (sparc64-linux-nat.o): Update dependencies. * alpha-linux-nat.c, sparc-linux-nat.c: New files. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (amd64_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (amd64_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_amd64_linux_nat): Set it. Call linux_target and add_target. * arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (arm_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_arm_linux_nat): Add a prototype. Use linux_target and add_target. * hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (hppa_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_hppa_linux_nat): New function. * i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (i386_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (i386_linux_resume): Renamed from child_resume and made static. (i386_linux_child_post_start_inferior): Renamed from child_post_startup_inferior and made static. Call super_post_startup_inferior. (super_post_startup_inferior): New. (_initialize_i386_linux_nat): New function. * i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef. * ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove. (super_xfer_partial): New. (ia64_linux_xfer_partial): New function. Use it. (_initialize_ia64_linux_nat): New function. * ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use target_read_partial and document the problem. * inf-ptrace.c (inf_ptrace_fetch_register): Use CANNOT_FETCH_REGISTER. Fix some comments. (inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some comments. * linux-nat.c: Include "inf-ptrace.h" and "auxv.h". (linux_ops, super_xfer_partial): New variables. (linux_child_post_startup_inferior): Make static. (child_post_startup_inferior): Delete. (linux_nat_attach, linux_nat_detach, resume_callback) (linux_nat_resume, linux_nat_wait, linux_nat_create_inferior) (linux_nat_mourn_inferior): Use linux_ops instead of deprecated_child_ops. (child_wait): Do not depend on CHILD_WAIT. (linux_nat_xfer_memory): Remove, replace by ... (linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial instead of linux_proc_xfer_memory and child_xfer_memory. (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior): New functions. (init_linux_nat_ops): Use the new functions. (linux_proc_xfer_memory): Remove, replace by ... (linux_proc_xfer_partial): ... this. Make static. (linux_xfer_partial, linux_register_u_offset, linux_target): New functions. (_initialize_linux_nat): Do not modify deprecated_child_ops. * linux-nat.h (linux_proc_xfer_memory): Remove prototype. (struct mem_attrib, struct target_ops): Remove forward declarations. (linux_child_post_startup_inferior): Remove prototype. (linux_target): Add prototype. * linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ... (thread_db_xfer_partial): ... this. (init_thread_db_ops): Set to_xfer_partial instead of deprecated_xfer_memory. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m32r_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_m32r_linux_nat): New function. * m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (m68k_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (old_fetch_inferior_registers, old_store_inferior_registers): Made static. (_initialize_m68k_linux_nat): Use linux_target and add_target. * mips-linux-nat.c (_initialize_mips_linux_nat): New function. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (ppc_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_ppc_linux_nat): New function. * s390-nat.c (s390_linux_fetch_inferior_registers): Renamed from fetch_inferior_registers and made static. (s390_linux_store_inferior_registers): Renamed from store_inferior_registers and made static. (_initialize_s390_nat): New function. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use linux_target and add_target. * config/nm-linux.h: Don't include "auxv.h". (struct target_waitstatus, child_wait, CHILD_WAIT) (CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT) (CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT) (CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK) (DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete. * config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o and alpha-linux-nat.o. * config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with sparc-linux-nat.o. * config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. * config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and inftarg.o with inf-ptrace.o. * config/i386/linux.mh (NATDEPFILES): Likewise. * config/i386/linux64.mh (NATDEPFILES): Likewise. * config/ia64/linux.mh (NATDEPFILES): Likewise. * config/m32r/linux.mh (NATDEPFILES): Likewise. * config/m68k/linux.mh (NATDEPFILES): Likewise. * config/mips/linux.mh (NATDEPFILES): Likewise. * config/pa/linux.mh (NATDEPFILES): Likewise. * config/powerpc/linux.mh (NATDEPFILES): Likewise. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise. * config/s390/s390.mh (NATDEPFILES): Likewise. * config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define. (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define. * config/ia64/nm-linux.h: Don't include "target.h". (NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove. * config/djgpp/fnchange.lst: Add alpha-linux-tdep.c, alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
2005-09-10 20:11:14 +02:00
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
/* target_is_async_p implementation. */
static int
linux_nat_is_async_p (void)
{
/* NOTE: palves 2008-03-21: We're only async when the user requests
it explicitly with the "maintenance set target-async" command.
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
Someday, linux will always be async. */
if (!target_async_permitted)
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
return 0;
return 1;
}
/* target_can_async_p implementation. */
static int
linux_nat_can_async_p (void)
{
/* NOTE: palves 2008-03-21: We're only async when the user requests
it explicitly with the "maintenance set target-async" command.
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
Someday, linux will always be async. */
if (!target_async_permitted)
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
return 0;
/* See target.h/target_async_mask. */
return linux_nat_async_mask_value;
}
static int
linux_nat_supports_non_stop (void)
{
return 1;
}
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
/* target_async_mask implementation. */
static int
linux_nat_async_mask (int mask)
{
int current_state;
current_state = linux_nat_async_mask_value;
if (current_state != mask)
{
if (mask == 0)
{
linux_nat_async (NULL, 0);
linux_nat_async_mask_value = mask;
}
else
{
linux_nat_async_mask_value = mask;
linux_nat_async (inferior_event_handler, 0);
}
}
return current_state;
}
/* Pop an event from the event pipe. */
static int
linux_nat_event_pipe_pop (int* ptr_status, int* ptr_options)
{
struct waitpid_result event = {0};
int ret;
do
{
ret = read (linux_nat_event_pipe[0], &event, sizeof (event));
}
while (ret == -1 && errno == EINTR);
gdb_assert (ret == sizeof (event));
*ptr_status = event.status;
*ptr_options = event.options;
linux_nat_num_queued_events--;
return event.pid;
}
/* Push an event into the event pipe. */
static void
linux_nat_event_pipe_push (int pid, int status, int options)
{
int ret;
struct waitpid_result event = {0};
event.pid = pid;
event.status = status;
event.options = options;
do
{
ret = write (linux_nat_event_pipe[1], &event, sizeof (event));
gdb_assert ((ret == -1 && errno == EINTR) || ret == sizeof (event));
} while (ret == -1 && errno == EINTR);
linux_nat_num_queued_events++;
}
static void
get_pending_events (void)
{
int status, options, pid;
if (!target_async_permitted
|| linux_nat_async_events_state != sigchld_async)
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
internal_error (__FILE__, __LINE__,
"get_pending_events called with async masked");
while (1)
{
status = 0;
options = __WCLONE | WNOHANG;
do
{
pid = waitpid (-1, &status, options);
}
while (pid == -1 && errno == EINTR);
if (pid <= 0)
{
options = WNOHANG;
do
{
pid = waitpid (-1, &status, options);
}
while (pid == -1 && errno == EINTR);
}
if (pid <= 0)
/* No more children reporting events. */
break;
if (debug_linux_nat_async)
fprintf_unfiltered (gdb_stdlog, "\
get_pending_events: pid(%d), status(%x), options (%x)\n",
pid, status, options);
linux_nat_event_pipe_push (pid, status, options);
}
if (debug_linux_nat_async)
fprintf_unfiltered (gdb_stdlog, "\
get_pending_events: linux_nat_num_queued_events(%d)\n",
linux_nat_num_queued_events);
}
/* SIGCHLD handler for async mode. */
static void
async_sigchld_handler (int signo)
{
if (debug_linux_nat_async)
fprintf_unfiltered (gdb_stdlog, "async_sigchld_handler\n");
get_pending_events ();
}
/* Set SIGCHLD handling state to STATE. Returns previous state. */
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
static enum sigchld_state
linux_nat_async_events (enum sigchld_state state)
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
{
enum sigchld_state current_state = linux_nat_async_events_state;
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
if (debug_linux_nat_async)
fprintf_unfiltered (gdb_stdlog,
"LNAE: state(%d): linux_nat_async_events_state(%d), "
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
"linux_nat_num_queued_events(%d)\n",
state, linux_nat_async_events_state,
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
linux_nat_num_queued_events);
if (current_state != state)
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
{
sigset_t mask;
sigemptyset (&mask);
sigaddset (&mask, SIGCHLD);
/* Always block before changing state. */
sigprocmask (SIG_BLOCK, &mask, NULL);
/* Set new state. */
linux_nat_async_events_state = state;
switch (state)
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
{
case sigchld_sync:
{
/* Block target events. */
sigprocmask (SIG_BLOCK, &mask, NULL);
sigaction (SIGCHLD, &sync_sigchld_action, NULL);
/* Get events out of queue, and make them available to
queued_waitpid / my_waitpid. */
pipe_to_local_event_queue ();
}
break;
case sigchld_async:
{
/* Unblock target events for async mode. */
sigprocmask (SIG_BLOCK, &mask, NULL);
/* Put events we already waited on, in the pipe first, so
events are FIFO. */
local_event_queue_to_pipe ();
/* While in masked async, we may have not collected all
the pending events. Get them out now. */
get_pending_events ();
/* Let'em come. */
sigaction (SIGCHLD, &async_sigchld_action, NULL);
sigprocmask (SIG_UNBLOCK, &mask, NULL);
}
break;
case sigchld_default:
{
/* SIGCHLD default mode. */
sigaction (SIGCHLD, &sigchld_default_action, NULL);
/* Get events out of queue, and make them available to
queued_waitpid / my_waitpid. */
pipe_to_local_event_queue ();
/* Unblock SIGCHLD. */
sigprocmask (SIG_UNBLOCK, &mask, NULL);
}
break;
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
}
}
return current_state;
}
static int async_terminal_is_ours = 1;
/* target_terminal_inferior implementation. */
static void
linux_nat_terminal_inferior (void)
{
if (!target_is_async_p ())
{
/* Async mode is disabled. */
terminal_inferior ();
return;
}
/* GDB should never give the terminal to the inferior, if the
inferior is running in the background (run&, continue&, etc.).
This check can be removed when the common code is fixed. */
if (!sync_execution)
return;
terminal_inferior ();
if (!async_terminal_is_ours)
return;
delete_file_handler (input_fd);
async_terminal_is_ours = 0;
set_sigint_trap ();
}
/* target_terminal_ours implementation. */
void
linux_nat_terminal_ours (void)
{
if (!target_is_async_p ())
{
/* Async mode is disabled. */
terminal_ours ();
return;
}
/* GDB should never give the terminal to the inferior if the
inferior is running in the background (run&, continue&, etc.),
but claiming it sure should. */
terminal_ours ();
if (!sync_execution)
return;
if (async_terminal_is_ours)
return;
clear_sigint_trap ();
add_file_handler (input_fd, stdin_event_handler, 0);
async_terminal_is_ours = 1;
}
static void (*async_client_callback) (enum inferior_event_type event_type,
void *context);
static void *async_client_context;
static void
linux_nat_async_file_handler (int error, gdb_client_data client_data)
{
async_client_callback (INF_REG_EVENT, async_client_context);
}
/* target_async implementation. */
static void
linux_nat_async (void (*callback) (enum inferior_event_type event_type,
void *context), void *context)
{
if (linux_nat_async_mask_value == 0 || !target_async_permitted)
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
internal_error (__FILE__, __LINE__,
"Calling target_async when async is masked");
if (callback != NULL)
{
async_client_callback = callback;
async_client_context = context;
add_file_handler (linux_nat_event_pipe[0],
linux_nat_async_file_handler, NULL);
linux_nat_async_events (sigchld_async);
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
}
else
{
async_client_callback = callback;
async_client_context = context;
linux_nat_async_events (sigchld_sync);
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
delete_file_handler (linux_nat_event_pipe[0]);
}
return;
}
/* Stop an LWP, and push a TARGET_SIGNAL_0 stop status if no other
event came out. */
static int
linux_nat_stop_lwp (struct lwp_info *lwp, void *data)
{
ptid_t ptid = * (ptid_t *) data;
if (ptid_equal (lwp->ptid, ptid)
|| ptid_equal (minus_one_ptid, ptid)
|| (ptid_is_pid (ptid)
&& ptid_get_pid (ptid) == ptid_get_pid (lwp->ptid)))
{
if (!lwp->stopped)
{
int pid, status;
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
"LNSL: running -> suspending %s\n",
target_pid_to_str (lwp->ptid));
/* Peek once, to check if we've already waited for this
LWP. */
pid = queued_waitpid_1 (ptid_get_lwp (lwp->ptid), &status,
lwp->cloned ? __WCLONE : 0, 1 /* peek */);
if (pid == -1)
{
ptid_t ptid = lwp->ptid;
stop_callback (lwp, NULL);
stop_wait_callback (lwp, NULL);
/* If the lwp exits while we try to stop it, there's
nothing else to do. */
lwp = find_lwp_pid (ptid);
if (lwp == NULL)
return 0;
pid = queued_waitpid_1 (ptid_get_lwp (lwp->ptid), &status,
lwp->cloned ? __WCLONE : 0,
1 /* peek */);
}
/* If we didn't collect any signal other than SIGSTOP while
stopping the LWP, push a SIGNAL_0 event. In either case,
the event-loop will end up calling target_wait which will
collect these. */
if (pid == -1)
push_waitpid (ptid_get_lwp (lwp->ptid), W_STOPCODE (0),
lwp->cloned ? __WCLONE : 0);
}
else
{
/* Already known to be stopped; do nothing. */
if (debug_linux_nat)
{
if (find_thread_pid (lwp->ptid)->stop_requested)
fprintf_unfiltered (gdb_stdlog, "\
LNSL: already stopped/stop_requested %s\n",
target_pid_to_str (lwp->ptid));
else
fprintf_unfiltered (gdb_stdlog, "\
LNSL: already stopped/no stop_requested yet %s\n",
target_pid_to_str (lwp->ptid));
}
}
}
return 0;
}
static void
linux_nat_stop (ptid_t ptid)
{
if (non_stop)
{
linux_nat_async_events (sigchld_sync);
iterate_over_lwps (linux_nat_stop_lwp, &ptid);
target_async (inferior_event_handler, 0);
}
else
linux_ops->to_stop (ptid);
}
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
void
linux_nat_add_target (struct target_ops *t)
{
/* Save the provided single-threaded target. We save this in a separate
variable because another target we've inherited from (e.g. inf-ptrace)
may have saved a pointer to T; we want to use it for the final
process stratum target. */
linux_ops_saved = *t;
linux_ops = &linux_ops_saved;
/* Override some methods for multithreading. */
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
t->to_create_inferior = linux_nat_create_inferior;
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
t->to_attach = linux_nat_attach;
t->to_detach = linux_nat_detach;
t->to_resume = linux_nat_resume;
t->to_wait = linux_nat_wait;
t->to_xfer_partial = linux_nat_xfer_partial;
t->to_kill = linux_nat_kill;
t->to_mourn_inferior = linux_nat_mourn_inferior;
t->to_thread_alive = linux_nat_thread_alive;
t->to_pid_to_str = linux_nat_pid_to_str;
t->to_has_thread_control = tc_schedlock;
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
t->to_can_async_p = linux_nat_can_async_p;
t->to_is_async_p = linux_nat_is_async_p;
t->to_supports_non_stop = linux_nat_supports_non_stop;
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
t->to_async = linux_nat_async;
t->to_async_mask = linux_nat_async_mask;
t->to_terminal_inferior = linux_nat_terminal_inferior;
t->to_terminal_ours = linux_nat_terminal_ours;
/* Methods for non-stop support. */
t->to_stop = linux_nat_stop;
* linux-nat.c (linux_ops_saved): New. (super_mourn_inferior, kill_inferior, threaded, linux_nat_ops) (child_mourn_inferior, child_wait, linux_nat_create_inferior) (linux_nat_fetch_registers, linux_nat_store_registers) (linux_nat_child_post_startup_inferior, init_linux_nat_ops): Delete. (init_lwp_list): Don't set threaded. (add_lwp): Don't modify threaded. (delete_lwp): Don't mention non-threaded mode. (linux_nat_switch_fork): New. (linux_nat_attach): Update inferior_ptid. (linux_nat_wait): Handle num_lwps == 0 at entry. Don't check threaded flag. (linux_nat_kill): Handle pending forks and saved forks. (linux_nat_mourn_inferior): Handle saved forks. (linux_nat_pid_to_str): Don't use the LWP form when there is only one thread. (linux_target): Don't set to_wait, to_kill, or to_mourn_inferior. (linux_nat_add_target): New. (_initialize_linux_nat): Don't initialize the linux native target here. * linux-nat.h (linux_nat_add_target, linux_nat_switch_fork): New prototypes. * linux-fork.c: Include "linux-nat.h". (add_fork): Update initial PID. (fork_load_infrun_state): Call linux_nat_switch_fork. * Makefile.in (linux-fork.o): Update. * alpha-linux-nat.c (_initialize_alpha_linux_nat): Use linux_nat_add_target instead of add_target. * amd64-linux-nat.c (_initialize_amd64_linux_nat): Likewise. * arm-linux-nat.c (_initialize_arm_linux_nat): Likewise. * hppa-linux-nat.c (_initialize_hppa_linux_nat): Likewise. * ia64-linux-nat.c (_initialize_ia64_linux_nat): Likewise. * i386-linux-nat.c (_initialize_i386_linux_nat): Likewise. * m32r-linux-nat.c (_initialize_m32r_linux_nat): Likewise. * m68klinux-nat.c (_initialize_m68k_linux_nat): Likewise. * mips-linux-nat.c (_initialize_mips_linux_nat): Likewise. * ppc-linux-nat.c (_initialize_ppc_linux_nat): Likewise. * s390-nat.c (_initialize_s390_nat): Likewise. * sparc-linux-nat.c (_initialize_sparc_linux_nat): Likewise. * sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Likewise.
2006-03-25 00:08:16 +01:00
/* We don't change the stratum; this target will sit at
process_stratum and thread_db will set at thread_stratum. This
is a little strange, since this is a multi-threaded-capable
target, but we want to be on the stack below thread_db, and we
also want to be used for single-threaded processes. */
add_target (t);
/* TODO: Eliminate this and have libthread_db use
find_target_beneath. */
thread_db_init (t);
}
* linux-nat.c (linux_nat_new_thread): New variable. (linux_child_follow_fork): Set inferior_ptid to include LWP ID. Use linux_nat_switch_fork. (lwp_list): Make public. (add_lwp): Call linux_nat_new_thread. (lin_lwp_attach_lwp, linux_nat_attach): Call add_lwp after stopping the new thread. (resume_callback): Clear lp->siginfo. Remove unused variable. (linux_nat_resume): Assert that the LWP list is already initialized. Clear lp->siginfo. (save_siginfo): New. (stop_wait_callback, linux_nat_wait): Call it. (linux_nat_set_new_thread, linux_nat_get_siginfo): New. * linux-nat.h (struct lwp_info): Add siginfo. (lwp_list, linux_nat_set_new_thread, linux_nat_get_siginfo): Declare. (ALL_LWPS): Define. * amd64-linux-nat.c (amd64_linux_dr): New. (amd64_linux_dr_get): Take a PTID argument. Correct typo. (amd64_linux_dr_set): Take a PTID argument. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use ALL_LWPS. (amd64_linux_dr_reset_addr): Use amd64_linux_dr_set_addr. (amd64_linux_dr_get_status): Pass inferior_ptid to amd64_linux_dr_get. (amd64_linux_new_thread): New. (_initialize_amd64_linux_nat): Call linux_nat_set_new_thread. * i386-linux-nat.c (i386_linux_dr): New. (i386_linux_dr_get, i386_linux_dr_set): Take a PTID argument. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use ALL_LWPS. (i386_linux_dr_reset_addr): Use i386_linux_dr_set_addr. (i386_linux_dr_get_status): Pass inferior_ptid to i386_linux_dr_get. (i386_linux_new_thread): New. (i386_linux_resume): Remove unnecessary PID check. (_initialize_i386_linux_nat): Call linux_nat_set_new_thread. * ia64-linux-nat.c (enable_watchpoints_in_psr): Take PTID argument. (fetch_debug_register, fetch_debug_register_pair): Delete. (debug_registers): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint): Use ALL_LWPS and debug_registers. (ia64_linux_new_thread): New. (ia64_linux_stopped_data_address): Use linux_nat_get_siginfo. (_initialize_ia64_linux_nat): Call linux_nat_set_new_thread. * ppc-linux-nat.c (last_stopped_data_address): Delete. (saved_dabr_value): New. (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use ALL_LWPS. (ppc_linux_new_thread): New. (ppc_linux_stopped_data_address): Use linux_nat_get_siginfo. (ppc_linux_stopped_by_watchpoint): Call ppc_linux_stopped_data_address. (_initialize_ppc_linux_nat): Call linux_nat_set_new_thread. * s390-nat.c (s390_stopped_by_watchpoint): Clear the watchpoint status after reading it. (s390_fix_watch_points): Take a PTID argument. (s390_insert_watchpoint, s390_remove_watchpoint): Use ALL_LWPS. (_initialize_s390_nat): Call linux_nat_set_new_thread.
2007-10-01 02:22:50 +02:00
/* Register a method to call whenever a new thread is attached. */
void
linux_nat_set_new_thread (struct target_ops *t, void (*new_thread) (ptid_t))
{
/* Save the pointer. We only support a single registered instance
of the GNU/Linux native target, so we do not need to map this to
T. */
linux_nat_new_thread = new_thread;
}
/* Return the saved siginfo associated with PTID. */
struct siginfo *
linux_nat_get_siginfo (ptid_t ptid)
{
struct lwp_info *lp = find_lwp_pid (ptid);
gdb_assert (lp != NULL);
return &lp->siginfo;
}
/* Enable/Disable async mode. */
static void
linux_nat_setup_async (void)
{
if (pipe (linux_nat_event_pipe) == -1)
internal_error (__FILE__, __LINE__,
"creating event pipe failed.");
fcntl (linux_nat_event_pipe[0], F_SETFL, O_NONBLOCK);
fcntl (linux_nat_event_pipe[1], F_SETFL, O_NONBLOCK);
}
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
void
_initialize_linux_nat (void)
{
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
sigset_t mask;
add_info ("proc", linux_nat_info_proc_cmd, _("\
Show /proc process information about any running process.\n\
Specify any process id, or use the program being debugged by default.\n\
Specify any of the following keywords for detailed info:\n\
mappings -- list of mapped memory regions.\n\
stat -- list a bunch of random process info.\n\
status -- list a different bunch of random process info.\n\
all -- list all available /proc info."));
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
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
add_setshow_zinteger_cmd ("lin-lwp", class_maintenance,
&debug_linux_nat, _("\
Set debugging of GNU/Linux lwp module."), _("\
Show debugging of GNU/Linux lwp module."), _("\
Enables printf debugging output."),
NULL,
show_debug_linux_nat,
&setdebuglist, &showdebuglist);
add_setshow_zinteger_cmd ("lin-lwp-async", class_maintenance,
&debug_linux_nat_async, _("\
Set debugging of GNU/Linux async lwp module."), _("\
Show debugging of GNU/Linux async lwp module."), _("\
Enables printf debugging output."),
NULL,
show_debug_linux_nat_async,
&setdebuglist, &showdebuglist);
/* Get the default SIGCHLD action. Used while forking an inferior
(see linux_nat_create_inferior/linux_nat_async_events). */
sigaction (SIGCHLD, NULL, &sigchld_default_action);
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
/* Block SIGCHLD by default. Doing this early prevents it getting
unblocked if an exception is thrown due to an error while the
inferior is starting (sigsetjmp/siglongjmp). */
sigemptyset (&mask);
sigaddset (&mask, SIGCHLD);
sigprocmask (SIG_BLOCK, &mask, NULL);
/* Save this mask as the default. */
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
sigprocmask (SIG_SETMASK, NULL, &normal_mask);
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
/* The synchronous SIGCHLD handler. */
sync_sigchld_action.sa_handler = sigchld_handler;
sigemptyset (&sync_sigchld_action.sa_mask);
sync_sigchld_action.sa_flags = SA_RESTART;
/* Make it the default. */
sigaction (SIGCHLD, &sync_sigchld_action, NULL);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
/* Make sure we don't block SIGCHLD during a sigsuspend. */
sigprocmask (SIG_SETMASK, NULL, &suspend_mask);
sigdelset (&suspend_mask, SIGCHLD);
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
/* SIGCHLD handler for async mode. */
async_sigchld_action.sa_handler = async_sigchld_handler;
sigemptyset (&async_sigchld_action.sa_mask);
async_sigchld_action.sa_flags = SA_RESTART;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
linux_nat_setup_async ();
add_setshow_boolean_cmd ("disable-randomization", class_support,
&disable_randomization, _("\
Set disabling of debuggee's virtual address space randomization."), _("\
Show disabling of debuggee's virtual address space randomization."), _("\
When this mode is on (which is the default), randomization of the virtual\n\
address space is disabled. Standalone programs run with the randomization\n\
enabled by default on some platforms."),
&set_disable_randomization,
&show_disable_randomization,
&setlist, &showlist);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
}
/* FIXME: kettenis/2000-08-26: The stuff on this page is specific to
the GNU/Linux Threads library and therefore doesn't really belong
here. */
/* Read variable NAME in the target and return its value if found.
Otherwise return zero. It is assumed that the type of the variable
is `int'. */
static int
get_signo (const char *name)
{
struct minimal_symbol *ms;
int signo;
ms = lookup_minimal_symbol (name, NULL, NULL);
if (ms == NULL)
return 0;
if (target_read_memory (SYMBOL_VALUE_ADDRESS (ms), (gdb_byte *) &signo,
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
sizeof (signo)) != 0)
return 0;
return signo;
}
/* Return the set of signals used by the threads library in *SET. */
void
lin_thread_get_thread_signals (sigset_t *set)
{
struct sigaction action;
int restart, cancel;
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
sigset_t blocked_mask;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
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
sigemptyset (&blocked_mask);
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
sigemptyset (set);
restart = get_signo ("__pthread_sig_restart");
cancel = get_signo ("__pthread_sig_cancel");
/* LinuxThreads normally uses the first two RT signals, but in some legacy
cases may use SIGUSR1/SIGUSR2. NPTL always uses RT signals, but does
not provide any way for the debugger to query the signal numbers -
fortunately they don't change! */
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (restart == 0)
restart = __SIGRTMIN;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
if (cancel == 0)
cancel = __SIGRTMIN + 1;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
sigaddset (set, restart);
sigaddset (set, cancel);
/* The GNU/Linux Threads library makes terminating threads send a
special "cancel" signal instead of SIGCHLD. Make sure we catch
those (to prevent them from terminating GDB itself, which is
likely to be their default action) and treat them the same way as
SIGCHLD. */
action.sa_handler = sigchld_handler;
sigemptyset (&action.sa_mask);
action.sa_flags = SA_RESTART;
2004-09-16 Andrew Cagney <cagney@gnu.org> * lin-lwp.c: Delete file. * linux-nat.c: Include "gdb_assert.h", "gdb_string.h", <unistd.h>, <sys/syscall.h>, "gdbthread.h", "gdbcmd.h", "regcache.h". (status_to_str, init_lwp_list, add_lwp, delete_lwp) (find_lwp_pid, iterate_over_lwps, lin_lwp_attach_lwp) (linux_nat_attach, detach_callback, linux_nat_detach) (resume_callback, resume_clear_callback, linux_nat_resume) (kill_lwp, linux_nat_handle_extended, wait_lwp, stop_callback) (stop_wait_callback, linux_nat_has_pending, flush_callback) (status_callback, running_callback, count_events_callback) (select_singlestep_lwp_callback, select_event_lwp_callback) (cancel_breakpoints_callback, select_event_lwp, resumed_callback) (child_wait, stop_and_resume_callback, linux_nat_wait) (kill_callback, kill_wait_callback, linux_nat_kill) (linux_nat_create_inferior, linux_nat_mourn_inferior) (linux_nat_xfer_memory, linux_nat_thread_alive) (linux_nat_pid_to_str, init_linux_nat_ops, sigchld_handler) (_initialize_linux_nat): New functions. * Makefile.in: Update all dependencies. * config/sparc/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/sparc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/s390/s390.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/powerpc/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/pa/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/mips/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/m68k/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/ia64/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux64.mh (NATDEPFILES): Remove lin-lwp.o. * config/i386/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/arm/linux.mh (NATDEPFILES): Remove lin-lwp.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Remove lin-lwp.o.
2004-09-27 21:55:18 +02:00
sigaction (cancel, &action, NULL);
/* We block the "cancel" signal throughout this code ... */
sigaddset (&blocked_mask, cancel);
sigprocmask (SIG_BLOCK, &blocked_mask, NULL);
/* ... except during a sigsuspend. */
sigdelset (&suspend_mask, cancel);
}