* server.h (decode_xfer_write): Change prototype.
* remote-utils.c (decode_xfer_write): Remove `annex' parameter,
and don't extract the annex here.
* server.c (decode_xfer_read): Remove `annex' parameter,
and don't extract the annex here.
(decode_xfer): New.
(struct qxfer): New.
(handle_qxfer_auxv, handle_qxfer_features, handle_qxfer_libraries)
(handle_qxfer_osdata, handle_qxfer_siginfo, handle_qxfer_spu)
(handle_qxfer_statictrace): New functions, abstracted out from
handle_query, and made to use the struct qxfer interface.
(handle_threads_qxfer_proper): Rename to ...
(handle_qxfer_threads_proper): ... this.
(handle_threads_qxfer): Rename to ...
(handle_qxfer_threads): ... this. Adjust.
(qxfer_packets): New array.
(handle_qxfer): New function.
(handle_query): Use handle_qxfer.
gdb/ChangeLog:
* top.c (print_gdb_version): Update copyright year in version output.
gdb/gdbserverChangeLog:
* server.c (gdbserver_version): Update copyright year in version
output.
* gdbreplay.c (gdbreplay_version): Ditto.
This patch moves all includes of malloc.h, which were introduced
purely to get access to alloca's declaration, to server.h, next
to the include of alloca.h.
There is one exception: gdbreplay.c, which does not include server.h.
In this case, the include of alloca.h was simply moved up a bit, next
to the include of malloc.h.
gdb/gdbserver/ChangeLog:
* gdbreplay.c: Move include of alloca.h up, next to include of
malloc.h.
* server.h: Add include of malloc.h.
* mem-break.c: Remove include of malloc.h.
* server.c, tracepoint.c, utils.c, win32-low.c: Likewise.
* server.c (push_event, queue_stop_reply_callback): Assert we're
not pushing a TARGET_WAITKIND_IGNORE event.
(start_inferior, start_inferior, attach_inferior, handle_v_cont)
(myresume, handle_target_event): Set the thread's last_resume_kind
and last_status from the target returned status.
This is on GNU/Linux.
GDBserver does not exit properly when the inferior exits, as demonstrated
with any program using the procedure below:
% gdbserver-head :4444 simple_main
Process simple_main created; pid = 25681
Listening on port 4444
Then, in another terminal, start GDB, connect to GDBserver, and run
the program to completion:
% gdb-head simple_main
(gdb) tar rem :4444
(gdb) cont
Continuing.
Program exited normally.
Going back to the terminal where GDBserver is running, we see the following
output:
Child exited with status 0
readchar: Got EOF
Remote side has terminated connection. GDBserver will reopen the connection.
Listening on port 4444
The problem is that we're missing a call to mourn_inferior. As a result,
after we've handled the vCont packet, we fail to notice that there are
no process left to debug (target_running() returns true), and thus try
to continue reading from the remote socket. However, since GDB just
disconnected after having received the "exit with status 0" reply to the
vCont request, the read triggers the EOF exception.
gdb/gdbserver/ChangeLog:
* server.c (handle_v_cont): Call mourn_inferior if process
just exited.
(myresume): Likewise.
I just happened to notice that this function was exclusively used in
server.c, and thus could be made static.
2010-07-06 Joel Brobecker <brobecker@adacore.com>
* server.c (myresume): Make static.
(status_pending_p_callback): Remove redundant statement. Check
for !TARGET_WAITIKIND_IGNORE, instead of
TARGET_WAITKIND_STOPPED.
(handle_tracepoints): Make sure LWP is locked. Adjust.
(linux_wait_for_event_1): Adjust.
(linux_cancel_breakpoints): New.
(unsuspend_one_lwp): New.
(unsuspend_all_lwps): New.
(linux_wait_1): If finishing a step-over, unsuspend all lwps.
(send_sigstop_callback): Change return type to int, add new
`except' parameter and handle it.
(suspend_and_send_sigstop_callback): New.
(stop_all_lwps): Add new `suspend' and `expect' parameters, and
pass them down. If SUSPEND, also increment the lwp's suspend
count.
(linux_resume_one_lwp): Add notice about resuming a suspended LWP.
(need_step_over_p): Don't consider suspended LWPs.
(start_step_over): Adjust.
(proceed_one_lwp): Change return type to int, add new `except'
parameter and handle it.
(unsuspend_and_proceed_one_lwp): New.
(proceed_all_lwps): Use find_inferior instead of
for_each_inferior.
(unstop_all_lwps): Add `unsuspend' parameter. If UNSUSPEND, them
also decrement the suspend count of LWPs. Pass `except' down,
instead of hacking its suspend count.
(linux_pause_all): Add `freeze' parameter. Adjust.
(linux_unpause_all): New.
(linux_target_ops): Install linux_unpause_all.
* server.c (handle_status): Adjust.
* target.h (struct target_ops): New fields `unpause_all' and
`cancel_breakpoints'. Add new parameter to `pause_all'.
(pause_all): Add new `freeze' parameter.
(unpause_all): New.
(cancel_breakpoints): New.
* tracepoint.c (clear_installed_tracepoints): Pause threads, and
cancel breakpoints.
(cmd_qtstart): Pause threads.
(stop_tracing): Pause threads, and cancel breakpoints.
* win32-low.c (win32_target_ops): Adjust.
(linux_kill): Stop all lwps here. Don't delete the main lwp here.
(linux_detach_one_lwp): Assume the lwp is stopped.
(any_thread_of): Delete.
(linux_detach): Stop all lwps here. Don't blindly delete all
breakpoints.
(delete_lwp_callback): New.
(linux_mourn): Delete all lwps of the process that is gone.
(linux_wait_1): Don't delete the last lwp of the process here.
* mem-break.h (mark_breakpoints_out): Declare.
* mem-break.c (mark_breakpoints_out): New.
(free_all_breakpoints): Use it.
* server.c (handle_target_event): If the process is gone, mark
breakpoints out.
* thread-db.c (struct thread_db) <create_bp>: New field.
(thread_db_enable_reporting): Fix prototype. Store a thread event
breakpoint reference in the thread_db struct.
(thread_db_load_search): Clear the thread_db object.
(try_thread_db_load_1): Ditto.
(switch_to_process): New.
(disable_thread_event_reporting): Use it.
(remove_thread_event_breakpoints): New.
(thread_db_detach, thread_db_mourn): Use it.
* NEWS: Document new feature.
* remote.c (PACKET_qGetTIBAddr): New enum element.
(remote_get_tib_address): New function.
(init_remote_ops): Set to_get_tib_address field
to remote_get_tib_address.
(_initialize_remote): Add add_packet_config_cmd
for PACKET_qGetTIBAddr.
* target.c (update_current_target): Set default value for
new to_get_tib_address field.
* target.h (target_ops): New field to_get_tib_address.
(target_get_tib_address): New macro.
* windows-nat.c (thread_info): Add thread_local_base field.
(windows_add_thread): Add tlb argument of type 'void *'.
(fake_create_process): Adapt windows_add_thread call.
(get_windows_debug_event): Idem.
(windows_get_tib_address): New function.
(init_windows_ops): Set to_get_tib_address field
to remote_get_tib_address.
(_initialize_windows_nat): Replace info_w32_cmdlist
initialization by a call to init_w32_command_list.
(info_w32_command, info_w32_cmdlist): Removed from here...
to windows-tdep.c file.
* windows-tdep.h (info_w32_cmdlist): Declare.
(init_w32_command_list): New external function
declaration.
* windows-tdep.c: Add several headers.
(info_w32_cmdlist): to here, made global.
(thread_information_32): New struct.
(thread_information_64): New struct.
(TIB_NAME): New char array.
(MAX_TIB32, MAX_TIB64, FULL_TIB_SIZE): New constants.
(maint_display_all_tib): New static variable.
(windows_get_tlb_type): New function.
(tlb_value_read, tlb_value_write): New functions.
(tlb_value_funcs): New static struct.
(tlb_make_value): New function.
(display_one_tib): New function.
(display_tib): New function.
(show_maint_show_all_tib):New function.
(info_w32_command): Moved from windows-nat.c.
(init_w32_command_list): New function.
(_initialize_windows_tdep): New function.
New "maint set/show show-all-tib" command
New "$_tlb" internal variable.
gdbserver/ChangeLog entry:
* server.c (handle_query): Handle 'qGetTIBAddr' query.
* target.h (target_ops): New get_tib_address field.
* win32-low.h (win32_thread_info): Add thread_local_base field.
* win32-low.c (child_add_thread): Add tlb argument.
Set thread_local_base field to TLB.
(get_child_debug_event): Adapt to child_add_thread change.
(win32_get_tib_address): New function.
(win32_target_ops): Set get_tib_address field to
win32_get_tib_address.
* linux-low.c (linux_target_ops): Set get_tib_address field to NULL.
doc/ChangeLog entry:
gdb.texinfo ($_tlb): Document new automatic convinience variable.
(info w32 thread-information-block): Document new command.
(qGetTIBAddress): Document new gdbserver query.
(maint set/show show-all-tib): Document new command.
* linux-low.c (linux_remove_process): Delete.
(add_lwp): Don't set last_resume_kind here.
(linux_kill): Use `mourn'.
(linux_detach): Use `thread_db_detach', and `mourn'.
(linux_mourn): New.
(linux_attach_lwp_1): Adjust comment.
(linux_attach): last_resume_kind moved the thread_info; adjust.
(status_pending_p_callback): Adjust.
(linux_wait_for_event_1): Adjust.
(count_events_callback, select_singlestep_lwp_callback)
(select_event_lwp_callback, cancel_breakpoints_callback)
(db_wants_lwp_stopped, linux_wait_1, need_step_over_p)
(proceed_one_lwp): Adjust.
(linux_async): Add debug output.
(linux_thread_stopped): New.
(linux_pause_all): New.
(linux_target_ops): Install linux_mourn, linux_thread_stopped and
linux_pause_all.
* linux-low.h (struct lwp_info): Delete last_resume_kind field.
(thread_db_free): Delete declaration.
(thread_db_detach, thread_db_mourn): Declare.
* thread-db.c (thread_db_init): Use thread_db_mourn.
(thread_db_free): Delete, split in two.
(disable_thread_event_reporting): New.
(thread_db_detach): New.
(thread_db_mourn): New.
* server.h (struct thread_info) <last_resume_kind>: New field.
<attached>: Add comment.
<gdb_detached>: New field.
(handler_func): Change return type to int.
(handle_serial_event, handle_target_event): Ditto.
(gdb_connected): Declare.
(tracing): Delete.
(disconnected_tracing): Declare.
(stop_tracing): Declare.
* server.c (handle_query) <qSupported>: Report support for
disconnected tracing.
(queue_stop_reply_callback): Account for running threads.
(gdb_wants_thread_stopped): New.
(gdb_wants_all_threads_stopped): New.
(gdb_reattached_process): New.
(handle_status): Clear the `gdb_detached' flag of all processes.
In all-stop, stop all threads.
(main): Be sure to leave tfind mode. Handle disconnected tracing.
(process_serial_event): If the remote connection breaks, or if an
exit was forced with "monitor exit", force an event loop exit.
Handle disconnected tracing on detach.
(handle_serial_event): Adjust.
(handle_target_event): If GDB isn't connected, forward events back
to the inferior, unless the last process exited, in which case,
exit gdbserver. Adjust interface.
* remote-utils.c (remote_open): Don't block in accept. Instead
register an event loop source on the listen socket file
descriptor. Refactor bits into ...
(listen_desc): ... this new global.
(gdb_connected): ... this new function.
(enable_async_notification): ... this new function.
(handle_accept_event): ... this new function.
(remote_close): Clear remote_desc.
* inferiors.c (add_thread): Set the new thread's last_resume_kind.
* target.h (struct target_ops) <mourn, thread_stopped, pause_all>:
New fields.
(mourn_inferior): Define.
(target_process_qsupported): Avoid the dangling else problem.
(thread_stopped): Define.
(pause_all): Define.
(target_waitstatus_to_string): Declare.
* target.c (target_waitstatus_to_string): New.
* tracepoint.c (tracing): Make extern.
(disconnected_tracing): New.
(stop_tracing): Make extern. Handle tracing stops due to GDB
disconnecting.
(cmd_qtdisconnected): New.
(cmd_qtstatus): Report disconnected tracing status in trace reply.
(handle_tracepoint_general_set): Handle QTDisconnected.
* event-loop.c (event_handler_func): Change return type to int.
(process_event): Bail out if the event handler wants the event
loop to stop.
(handle_file_event): Ditto.
(start_event_loop): Bail out if the event handler wants the event
loop to stop.
* nto-low.c (nto_target_ops): Adjust.
* spu-low.c (spu_wait): Don't remove the process here.
(spu_target_ops): Adjust.
* win32-low.c (win32_wait): Don't remove the process here.
(win32_target_ops): Adjust.
(set_gdb_breakpoint_at): If GDB is inserting a breakpoint on top
of another, then delete the previous, and validate all
breakpoints.
(validate_inserted_breakpoint): New.
(delete_disabled_breakpoints): New.
(validate_breakpoints): New.
(check_mem_read): Validate breakpoints before trusting their
shadow. Delete disabled breakpoints.
(check_mem_write): Validate breakpoints before trusting they
should be inserted. Delete disabled breakpoints.
* mem-break.h (validate_breakpoints):
* server.c (handle_query): Validate breakpoints when we see a
qSymbol query.
Pedro Alves <pedro@codesourcery.com>
* target.h (struct target_ops) <supports_multi_process>: New
callback.
(target_supports_multi_process): New.
* server.c (handle_query): Even if GDB reports support, only
enable multi-process if the target also supports it. Report
multi-process support only if the target backend supports it.
* linux-low.c (linux_supports_multi_process): New function.
(linux_target_ops): Install it as target_supports_multi_process
callback.
Global renaming of find_thread_pid to find_thread_ptid.
* gdbthread.h (find_thread_ptid): Renamed from find_thread_pid.
* thread.c (find_thread_ptid): Renamed from find_thread_pid.
All callers updated.
gdbserver:
Global renaming of find_thread_pid to find_thread_ptid.
* server.h (find_thread_ptid): Renamed from find_thread_pid.
* inferiors.c (find_thread_ptid): Renamed from find_thread_pid.
All callers updated.
(attached_inferior_callback): New function.
(have_started_inferiors_p, have_attached_inferiors_p): New functions.
* server.c (print_started_pid, print_attached_pid): New functions.
(detach_or_kill_for_exit): New function.
(main): Call it instead of for_each_inferior (kill_inferior_callback).
* server.h (have_started_inferiors_p): Declare.
(have_attached_inferiors_p): Declare.
Implement the multiprocess extensions, and add linux multiprocess
support.
* server.h (ULONGEST): Declare.
(struct ptid, ptid_t): New.
(minus_one_ptid, null_ptid): Declare.
(ptid_build, pid_to_ptid, ptid_get_pid, ptid_get_lwp)
(ptid_get_tid, ptid_equal, ptid_is_pid): Declare.
(struct inferior_list_entry): Change `id' type from unsigned from
to ptid_t.
(struct sym_cache, struct breakpoint, struct
process_info_private): Forward declare.
(struct process_info): Declare.
(current_process): Declare.
(all_processes): Declare.
(initialize_inferiors): Declare.
(add_thread): Adjust to use ptid_t.
(thread_id_to_gdb_id, thread_to_gdb_id, gdb_id_to_thread_id): Ditto.
(add_process, remove_process, find_thread_pid): Declare.
(find_inferior_id): Adjust to use ptid_t.
(cont_thread, general_thread, step_thread): Change type to ptid_t.
(multi_process): Declare.
(push_event): Adjust to use ptid_t.
(read_ptid, write_ptid): Declare.
(prepare_resume_reply): Adjust to use ptid_t.
(clear_symbol_cache): Declare.
* inferiors.c (all_processes): New.
(null_ptid, minus_one_ptid): New.
(ptid_build, pid_to_ptid, ptid_get_pid, ptid_get_lwp)
(ptid_get_tid, ptid_equal, ptid_is_pid): New.
(add_thread): Change unsigned long to ptid. Remove gdb_id
parameter. Adjust.
(thread_id_to_gdb_id, thread_to_gdb_id): Change unsigned long to ptid.
(gdb_id_to_thread): Rename to ...
(find_thread_pid): ... this. Change unsigned long to ptid.
(gdb_id_to_thread_id, find_inferior_id): Change unsigned long to ptid.
(loaded_dll, pull_pid_from_list): Adjust.
(add_process, remove_process, find_process_pid)
(get_thread_process, current_process, initialize_inferiors): New.
* target.h (struct thread_resume) <thread>: Change type to ptid_t.
(struct target_waitstatus) <related_pid>: Ditto.
(struct target_ops) <kill, detach>: Add `pid' argument. Change
return type to int.
(struct target_ops) <join>: Add `pid' argument.
(struct target_ops) <thread_alive>: Change pid's type to ptid_t.
(struct target_ops) <wait>: Add `ptid' field. Change return type
to ptid.
(kill_inferior, detach_inferior, join_inferior): Add `pid' argument.
(mywait): Add `ptid' argument. Change return type to ptid_t.
(target_pid_to_str): Declare.
* target.c (set_desired_inferior): Adjust to use ptids.
(mywait): Add new `ptid' argument. Adjust.
(target_pid_to_str): New.
* mem-break.h (free_all_breakpoints): Declare.
* mem-break.c (breakpoints): Delelete.
(set_breakpoint_at, delete_breakpoint, find_breakpoint_at)
(check_mem_read, check_mem_write, delete_all_breakpoints): Adjust
to use per-process breakpoint list.
(free_all_breakpoints): New.
* remote-utils.c (struct sym_cache) <name>: Drop `const'.
(symbol_cache, all_symbols_looked_up): Delete.
(hexchars): New.
(ishex, unpack_varlen_hex, write_ptid, hex_or_minus_one,
read_ptid): New.
(prepare_resume_reply): Change ptid argument's type from unsigned
long to ptid_t. Adjust. Implement W;process and X;process.
(free_sym_cache, clear_symbol_cache): New.
(look_up_one_symbol): Adjust to per-process symbol cache. *
* server.c (cont_thread, general_thread, step_thread): Change type
to ptid_t.
(attached): Delete.
(multi_process): New.
(last_ptid): Change type to ptid_t.
(struct vstop_notif) <ptid>: Change type to ptid_t.
(queue_stop_reply, push_event): Change `ptid' argument's type to
ptid_t.
(discard_queued_stop_replies): Add `pid' argument.
(start_inferior): Adjust to use ptids. Adjust to mywait interface
changes. Don't reference the `attached' global.
(attach_inferior): Adjust to mywait interface changes.
(handle_query): Adjust to use ptids. Parse GDB's qSupported
features. Handle and report "multiprocess+". Handle
"qAttached:PID".
(handle_v_cont): Adjust to use ptids. Adjust to mywait interface
changes.
(handle_v_kill): New.
(handle_v_stopped): Adjust to use target_pid_to_str.
(handle_v_requests): Allow multiple attaches and runs when
multiprocess extensions are in effect. Handle "vKill".
(myresume): Adjust to use ptids.
(queue_stop_reply_callback): Add `arg' parameter. Handle it.
(handle_status): Adjust to discard_queued_stop_replies interface
change.
(first_thread_of, kill_inferior_callback)
(detach_or_kill_inferior_callback, join_inferiors_callback): New.
(main): Call initialize_inferiors. Adjust to use ptids, killing
and detaching from all inferiors. Handle multiprocess packet
variants.
* linux-low.h: Include gdb_proc_service.h.
(struct process_info_private): New.
(struct linux_target_ops) <pid_of>: Use ptid_get_pid.
<lwpid_of>: Use ptid_get_lwp.
(get_lwp_thread): Adjust.
(struct lwp_info): Add `dead' member.
(find_lwp_pid): Declare.
* linux-low.c (thread_db_active): Delete.
(new_inferior): Adjust comment.
(inferior_pid): Delete.
(linux_add_process): New.
(handle_extended_wait): Adjust.
(add_lwp): Change unsigned long to ptid.
(linux_create_inferior): Add process to processes table. Adjust
to use ptids. Don't set new_inferior here.
(linux_attach_lwp): Rename to ...
(linux_attach_lwp_1): ... this. Add `initial' argument. Handle
it. Adjust to use ptids.
(linux_attach_lwp): New.
(linux_attach): Add process to processes table. Don't set
new_inferior here.
(struct counter): New.
(second_thread_of_pid_p, last_thread_of_process_p): New.
(linux_kill_one_lwp): Add `args' parameter. Handle it. Adjust to
multiple processes.
(linux_kill): Add `pid' argument. Handle it. Adjust to multiple
processes. Remove process from process table.
(linux_detach_one_lwp): Add `args' parameter. Handle it. Adjust
to multiple processes.
(any_thread_of): New.
(linux_detach): Add `pid' argument, and handle it. Remove process
from processes table.
(linux_join): Add `pid' argument. Handle it.
(linux_thread_alive): Change unsighed long argument to ptid_t.
Consider dead lwps as not being alive.
(status_pending_p): Rename `dummy' argument to `arg'. Filter out
threads we're not interested in.
(same_lwp, find_lwp_pid): New.
(linux_wait_for_lwp): Change `pid' argument's type from int to
ptid_t. Adjust.
(linux_wait_for_event): Rename to ...
(linux_wait_for_event_1): ... this. Change `pid' argument's type
from int to ptid_t. Adjust.
(linux_wait_for_event): New.
(linux_wait_1): Add `ptid' argument. Change return type to
ptid_t. Adjust. Use last_thread_of_process_p. Remove processes
that exit from the process table.
(linux_wait): Add `ptid' argument. Change return type to ptid_t.
Adjust.
(mark_lwp_dead): New.
(wait_for_sigstop): Adjust to use ptids. If a process exits while
stopping all threads, mark its main lwp as dead.
(linux_set_resume_request, linux_resume_one_thread): Adjust to use
ptids.
(fetch_register, usr_store_inferior_registers)
(regsets_fetch_inferior_registers)
(regsets_store_inferior_registers, linux_read_memory)
(linux_write_memory): Inline `inferior_pid'.
(linux_look_up_symbols): Adjust to use per-process
`thread_db_active'.
(linux_request_interrupt): Adjust to use ptids.
(linux_read_auxv): Inline `inferior_pid'.
(initialize_low): Don't reference thread_db_active.
* gdb_proc_service.h (struct ps_prochandle) <pid>: Remove.
* proc-service.c (ps_lgetregs): Use find_lwp_pid.
(ps_getpid): Return the pid of the current inferior.
* thread-db.c (proc_handle, thread_agent): Delete.
(thread_db_create_event, thread_db_enable_reporting): Adjust to
per-process data.
(find_one_thread): Change argument type to ptid_t. Adjust to
per-process data.
(maybe_attach_thread): Adjust to per-process data and ptids.
(thread_db_find_new_threads): Ditto.
(thread_db_init): Ditto.
* spu-low.c (spu_create_inferior, spu_attach): Add process to
processes table. Adjust to use ptids.
(spu_kill, spu_detach): Adjust interface. Remove process from
processes table.
(spu_join, spu_thread_alive): Adjust interface.
(spu_wait): Adjust interface. Remove process from processes
table. Adjust to use ptids.
* win32-low.c (current_inferior_tid): Delete.
(current_inferior_ptid): New.
(debug_event_ptid): New.
(thread_rec): Take a ptid. Adjust.
(child_add_thread): Add `pid' argument. Adjust to use ptids.
(child_delete_thread): Ditto.
(do_initial_child_stuff): Add `attached' argument. Add process to
processes table.
(child_fetch_inferior_registers, child_store_inferior_registers):
Adjust.
(win32_create_inferior): Pass 0 to do_initial_child_stuff.
(win32_attach): Pass 1 to do_initial_child_stuff.
(win32_kill): Adjust interface. Remove process from processes
table.
(win32_detach): Ditto.
(win32_join): Adjust interface.
(win32_thread_alive): Take a ptid.
(win32_resume): Adjust to use ptids.
(get_child_debug_event): Ditto.
(win32_wait): Adjust interface. Remove exiting process from
processes table.
* server.h (non_stop): Declare.
(gdb_client_data, handler_func): Declare.
(delete_file_handler, add_file_handler, start_event_loop):
Declare.
(handle_serial_event, handle_target_event, push_event)
(putpkt_notif): Declare.
* target.h (enum resume_kind): New.
(struct thread_resume): Replace `step' field by `kind' field.
(TARGET_WNOHANG): Define.
(struct target_ops) <wait>: Add `options' argument.
<supports_non_stop, async, start_non_stop>: New fields.
(target_supports_non_stop, target_async): New.
(start_non_stop): Declare.
(mywait): Add `options' argument.
* target.c (mywait): Add `options' argument. Print child exit
notifications here.
(start_non_stop): New.
* server.c (non_stop, own_buf, mem_buf): New globals.
(struct vstop_notif): New.
(notif_queue): New global.
(queue_stop_reply, push_event, discard_queued_stop_replies)
(send_next_stop_reply): New.
(start_inferior): Adjust to use resume_kind. Adjust to mywait
interface changes.
(attach_inferior): In non-stop mode, don't wait for the target
here.
(handle_general_set): Handle QNonStop.
(handle_query): When handling qC, return the current general
thread, instead of the first thread of the list.
(handle_query): If the backend supports non-stop mode, include
QNonStop+ in the qSupported query response.
(handle_v_cont): Adjust to use resume_kind. Handle resume_stop
and non-stop mode.
(handle_v_attach, handle_v_run): Handle non-stop mode.
(handle_v_stopped): New.
(handle_v_requests): Report support for vCont;t. Handle vStopped.
(myresume): Adjust to use resume_kind. Handle non-stop.
(queue_stop_reply_callback): New.
(handle_status): Handle non-stop mode.
(main): Clear non_stop flag on reconnection. Use the event-loop.
Refactor serial protocol handling from here ...
(process_serial_event): ... to this new function. When GDB
selects any thread, select one here. In non-stop mode, wait until
GDB acks all pending events before exiting.
(handle_serial_event, handle_target_event): New.
* remote-utils.c (remote_open): Install remote_desc in the event
loop.
(remote_close): Remove remote_desc from the event loop.
(putpkt_binary): Rename to...
(putpkt_binary_1): ... this. Add `is_notic' argument. Handle it.
(putpkt_binary): New as wrapper around putpkt_binary_1.
(putpkt_notif): New.
(prepare_resume_reply): In non-stop mode, don't change the
general_thread.
* event-loop.c: New.
* Makefile.in (OBJ): Add event-loop.o.
(event-loop.o): New rule.
* linux-low.h (pid_of): Moved here.
(lwpid_of): New.
(get_lwp_thread): Use lwpid_of.
(struct lwp_info): Delete `lwpid' field. Add `suspended' field.
* linux-low.c (pid_of): Delete.
(inferior_pid): Use lwpid_of.
(linux_event_pipe): New.
(target_is_async_p): New.
(delete_lwp): New.
(handle_extended_wait): Use lwpid_of.
(add_lwp): Don't set lwpid field.
(linux_attach_lwp): Adjust debug output. Use lwpid_of.
(linux_kill_one_lwp): If killing a running lwp, stop it first.
Use lwpid_of. Adjust to linux_wait_for_event interface changes.
(linux_detach_one_lwp): If detaching from a running lwp, stop it
first. Adjust to linux_wait_for_event interface changes. Use
lwpid_of.
(linux_detach): Don't delete the main lwp here.
(linux_join): Use my_waitpid. Avoid signal_pid. Use lwpid_of.
(status_pending_p): Don't consider explicitly suspended lwps.
(linux_wait_for_lwp): Take an integer pid instead of a lwp_info
pointer. Add OPTIONS argument. Change return type to int. Use
my_waitpid instead of sleeping. Handle WNOHANG. Use lwpid_of.
(linux_wait_for_event): Take an integer pid instead of a lwp_info
pointer. Add status pointer argument. Return a pid instead of a
status. Use lwpid_of. Adjust to linux_wait_for_lwp interface
changes. In non-stop mode, don't switch to a random thread.
(linux_wait): Rename to...
(linux_wait_1): ... this. Add target_options argument, and handle
it. Adjust to use resume_kind. Use lwpid_of. In non-stop mode,
don't handle the continue thread. Handle TARGET_WNOHANG. Merge
clean exit and signal exit code. Don't stop all threads in
non-stop mode. In all-stop mode, only stop all threads when
reporting a stop to GDB. Handle explicit thread stop requests.
(async_file_flush, async_file_mark): New.
(linux_wait): New.
(send_sigstop): Use lwpid_of.
(wait_for_sigstop): Use lwpid_of. Adjust to linux_wait_for_event
interface changes. In non-stop mode, don't switch to a random
thread.
(linux_resume_one_lwp): Use lwpid_of.
(linux_continue_one_thread, linux_queue_one_thread): Merge into ...
(linux_resume_one_thread): ... this. Handle resume_stop. In
non-stop mode, don't look for pending flag in all threads.
(resume_status_pending_p): Don't consider explicitly suspended
threads.
(my_waitpid): Reimplement. Emulate __WALL.
(linux_request_interrupt, linux_read_offsets, linux_xfer_siginfo):
Use lwpid_of.
(sigchld_handler, linux_supports_non_stop, linux_async)
(linux_start_non_stop): New.
(linux_target_ops): Register linux_supports_non_stop, linux_async
and linux_start_non_stop.
(initialize_low): Install SIGCHLD handler.
* thread-db.c (thread_db_create_event, find_one_thread)
(thread_db_get_tls_address): Use lwpid_of.
* win32-low.c (win32_detach): Adjust to use resume_kind.
(win32_wait): Add `options' argument.
* spu-low.c (spu_resume): Adjust to use resume_kind.
(spu_wait): Add `options' argument.
* target.h (enum target_waitkind): New.
(struct target_waitstatus): New.
(struct target_ops) <wait>: Return an unsigned long. Take a
target_waitstatus pointer instead of a char pointer.
(mywait): Likewise.
* target.c (mywait): Change prototype to return an unsigned long.
Take a target_waitstatus pointer instead of a char pointer. Adjust.
* server.h (thread_from_wait, old_thread_from_wait): Delete
declarations.
(prepare_resume_reply): Change prototype to take a
target_waitstatus.
* server.c (thread_from_wait, old_thread_from_wait): Delete.
(last_status, last_ptid): New.
(start_inferior): Remove "statusptr" argument. Adjust. Return a
pid instead of a signal.
(attach_inferior): Remove "status" and "signal" parameters.
Adjust.
(handle_query): For qGetTLSAddr, parse the thread id with strtol,
not as an address.
(handle_v_cont, handle_v_attach, handle_v_run, handle_v_kill)
(handle_v_requests, myresume): Remove "status" and "signal"
parameters. Adjust.
(handle_status): New.
(main): Delete local `status'. Adjust.
* remote-utils.c: Include target.h.
(prepare_resume_reply): Change prototype to take a
target_waitstatus. Adjust.
* linux-low.c (linux_wait): Adjust to new target_ops->wait
interface.
* spu-low.c (spu_wait): Adjust.
* win32-low.c (enum target_waitkind, struct target_waitstatus):
Delete.
(win32_wait): Adjust.
(struct target_ops): Add a `n' argument to the `resume' callback.
* server.c (start_inferior): Adjust.
(handle_v_cont, myresume): Adjust.
* linux-low.c (check_removed_breakpoint): Adjust to resume
interface change, and to removed leave_stopped field.
(resume_ptr): Delete.
(struct thread_resume_array): New.
(linux_set_resume_request): Add new `arg' parameter. Adjust to
resume interface change.
(linux_continue_one_thread, linux_queue_one_thread)
(resume_status_pending_p): Check if the resume field is NULL
instead of checking the leave_stopped member.
(linux_resume): Adjust to the target resume interface change.
* spu-low.c (spu_resume): Adjust to the target resume interface
change.
* win32-low.c (win32_detach, win32_resume): Ditto.
