reinsert auto-delete breakpoints.
* mem-break.c (struct breakpoint): Change return type of handler to
int.
(set_breakpoint_at): Update handler type.
(reinsert_breakpoint_handler): Return 1 instead of calling
delete_breakpoint.
(reinsert_breakpoint_by_bp): Check for the original breakpoint before
setting a new one.
(check_breakpoints): Delete auto-delete breakpoints and return 2.
* mem-break.h (set_breakpoint_at): Update handler type.
* thread-db.c (thread_db_create_event, thread_db_create_event): Update.
* win32-low.c (auto_delete_breakpoint): New.
(get_child_debug_event): Use it.
(add_pid_to_list, pull_pid_from_list): New.
* linux-low.c (PTRACE_SETOPTIONS, PTRACE_GETEVENTMSG)
(PTRACE_O_TRACESYSGOOD, PTRACE_O_TRACEFORK, PTRACE_O_TRACEVFORK)
(PTRACE_O_TRACECLONE, PTRACE_O_TRACEEXEC, PTRACE_O_TRACEVFORKDONE)
(PTRACE_O_TRACEEXIT, PTRACE_EVENT_FORK, PTRACE_EVENT_VFORK)
(PTRACE_EVENT_CLONE, PTRACE_EVENT_EXEC, PTRACE_EVENT_VFORK_DONE)
(PTRACE_EVENT_EXIT, __WALL): Provide default definitions.
(stopped_pids, thread_db_active, must_set_ptrace_flags): New variables.
(using_threads): Always set to 1.
(handle_extended_wait): New.
(add_process): Do not set TID.
(linux_create_inferior): Set must_set_ptrace_flags.
(linux_attach_lwp): Remove TID argument. Do not check using_threads.
Use PTRACE_SETOPTIONS. Call new_thread_notify. Update all callers.
(linux_thread_alive): Rename TID argument to LWPID.
(linux_wait_for_process): Handle unknown processes. Do not use TID.
(linux_wait_for_event): Do not use TID or check using_threads. Update
call to dead_thread_notify. Call handle_extended_wait.
(linux_create_inferior): Use PTRACE_SETOPTIONS.
(send_sigstop): Delete sigstop_sent.
(wait_for_sigstop): Avoid TID.
(linux_supports_tracefork_flag, linux_tracefork_child, my_waitpid)
(linux_test_for_tracefork): New.
(linux_lookup_signals): Use thread_db_active and
linux_supports_tracefork_flag.
(initialize_low): Use thread_db_active and linux_test_for_tracefork.
* linux-low.h (get_process_thread): Avoid TID.
(struct process_ifo): Move thread_known and tid to the end. Remove
sigstop_sent.
(linux_attach_lwp, thread_db_init): Update prototypes.
* server.h (change_inferior_id): Delete prototype.
(add_pid_to_list, pull_pid_from_list): New prototypes.
* thread-db.c (thread_db_use_events): New.
(find_first_thread): Rename to...
(find_one_thread): ...this. Update callers and messages. Do not
call fatal. Check thread_db_use_events. Do not call
change_inferior_id or new_thread_notify.
(maybe_attach_thread): Update. Do not call new_thread_notify.
(thread_db_init): Set thread_db_use_events. Check use_events.
* utils.c (fatal, warning): Correct message prefix.
(linux_resume_one_process): Take a siginfo_t *. Update all
callers. Queue it if necessary. Use PTRACE_SETSIGINFO.
(struct pending_signals): Add a siginfo_t.
(linux_wait_for_process): Always set last_status.
(linux_wait_for_event): Use PTRACE_GETSIGINFO.
(linux_queue_one_thread): Use PTRACE_GETSIGINFO.
* linux-low.h (struct process_info): Add last_status.
* configure.tgt: Build gdbserver for Cygwin and mingw32.
gdb/gdbserver/
* configure.ac: Check for more headers which are missing on
Windows. Automatically supply -lwsock32 and USE_WIN32API.
* configure.srv: Add Cygwin and mingw32.
* remote-utils.c: Don't include headers unconditionally which
are missing on mingw32. Include <winsock.h> for mingw32.
(remote_open): Adjust for mingw32 support. Flush
standard error after writing to it.
(remote_close, putpkt_binary, input_interrupt, block_async_io)
(unblock_async_io, enable_async_io, disable_async_io)
(readchar, getpkt): Update for Winsock support.
(prepare_resume_reply): Expect a protocol signal number.
* server.c: Disable <sys/wait.h> on mingw32.
(start_inferior): Adjust for mingw32 support. Flush
standard error after writing to it.
(attach_inferior): Likewise. Use protocol signal
numbers.
(main): Skip 'D' packet on mingw32. Use protocol signal numbers
and names.
* win32-i386-low.c: New file.
* Makefile.in (XM_CLIBS): Set.
(gdbserver, gdbreplay): Use $(INTERNAL_CFLAGS).
(win32-i386-low.o): New dependency rule.
* linux-low.c (linux_wait): Use target signal numbers.
* target.h (struct target_ops): Doc fix.
* server.h (target_signal_to_name): New prototype.
* gdbreplay.c: Don't include headers unconditionally which
are missing on mingw32. Include <winsock.h> for mingw32.
(remote_close, remote_open): Adjust for Winsock support.
* configure, config.in: Regenerated.
is not available. Define HAVE_PTRACE_GETREGS if it is.
* config.in, configure: Regenerated.
* configure.srv: Set srv_linux_regsets for PowerPC and PowerPC64.
* linux-i386-low.c, linux-m68k-low.c: Update to use
HAVE_PTRACE_GETREGS.
* linux-low.c (regsets_fetch_inferior_registers)
(regsets_store_inferior_registers): Only return 0 if we processed
GENERAL_REGS.
* linux-ppc-low.c (ppc_fill_gregset, target_regsets): New.
* linux-ppc64-low.c (ppc_fill_gregset, target_regsets): New.
Take unsigned long arguments for PIDs.
* linux-low.c (add_process, linux_attach_lwp, linux_attach)
(linux_thread_alive, linux_wait_for_event, kill_lwp, send_sigstop)
(wait_for_sigstop, linux_resume_one_process)
(regsets_fetch_inferior_registers, linux_send_signal)
(linux_read_auxv): Likewise. Update the types of variables holding
PIDs. Update format string specifiers.
* linux-low.h (struct process_info, linux_attach_lwp): Likewise.
* remote-utils.c (prepare_resume_reply): Likewise.
* server.c (cont_thread, general_thread, step_thread)
(thread_from_wait, old_thread_from_wait, signal_pid): Change type to
unsigned long.
(handle_query): Update format specifiers.
(handle_v_cont, main): Use strtoul for thread IDs.
* server.h (struct inferior_list_entry): Use unsigned long for ID.
(add_thread, find_inferior_id, change_inferior_id, cont_thread)
(general_thread, step_thread, thread_from_wait)
(old_thread_from_wait): Update.
* target.h (struct thread_resume): Use unsigned long for THREAD.
(struct target_ops): Use unsigned long for arguments to attach and
thread_alive.
* linux-x86-64-low.c (ps_get_thread_area): New.
* linux-low.c: Include <sys/syscall.h>.
(linux_kill_one_process): Don't kill the first thread here.
(linux_kill): Kill the first thread here.
(kill_lwp): New function.
(send_sigstop, linux_send_signal): Use it.
* proc-service.c: Clean up #ifdefs.
(fpregset_info): Delete.
(ps_lgetregs): Update and enable implementation.
(ps_lsetregs, ps_lgetfpregs, ps_lsetfpregs): Remove disabled
implementations.
* remote-utils.c (struct sym_cache, symbol_cache): New.
(input_interrupt): Print a clearer message.
(async_io_enabled): New variable.
(enable_async_io, disable_async_io): Use it. Update comments.
(look_up_one_symbol): Use the symbol cache.
* thread-db.c (thread_db_look_up_symbols): New function.
(thread_db_init): Update comments. Call thread_db_look_up_symbols.
int. Check for and return error from ptrace().
* target.c (read_inferior_memory): Change return type to int. Pass
back return status from the_target->read_memory().
* target.h (struct target_ops): Adapt *read_memory() prototype.
Update comment.
(read_inferior_memory): Adapt prototype.
* server.c (main): Return an error packet if
read_inferior_memory() returns an error.
* target.h (struct target_ops): New member `read_auxv'.
* server.c (handle_query): Handle qPart:auxv:read: query using that.
* linux-low.c (linux_read_auxv): New function.
(linux_target_ops): Initialize `read_auxv' member to that.
(check_removed_breakpoint): Clear pending_is_breakpoint.
(linux_set_resume_request, linux_queue_one_thread)
(resume_status_pending_p): New functions.
(linux_continue_one_thread): Use process->resume.
(linux_resume): Only resume threads if there are no pending events.
* linux-low.h (struct process_info): Add resume request
pointer.
PTRACE_XFER_TYPE-sized chunks, not int-sized chunks. Otherwise,
if 'int' is smaller than PTRACE_XFER_TYPE, you end up throwing
away part of the register's value.
the new PID.
(unstopped_p, linux_signal_pid): Remove.
(linux_target_ops): Remove linux_signal_pid.
* remote-utils.c (putpkt, input_interrupt): Use signal_pid
global instead of target method.
* target.h (struct target_ops): Remove signal_pid. Update comment
for create_inferior.
* server.c (signal_pid): New variable.
(create_inferior): Set signal_pid. Block SIGTTOU and SIGTTIN in
gdbserver. Set the child to be the foreground process group.
(attach_inferior): Set signal_pid.
