Commit Graph

458 Commits

Author SHA1 Message Date
Daniel Jacobowitz d962ef8246 PR gdb/2474
* remote.c (remote_read_description_p): New function.
	(remote_start_remote): Try to fetch the target description
	before adding shared libraries.  Try again later if the
	target is running but stopped.
	(remote_open_1): Mark extended targets as exited by default.
	(remote_read_description): Check target_has_execution.
2008-11-24 16:53:44 +00:00
Pedro Alves 6e5abd65ae * remote.c (escape_buffer): New.
(putpkt_binary, read_frame, getpkt_or_notif_sane_1): Use it.  Make
	sure debug output printing a packet buffer goes through a single
	fprintf_unfiltered call.
	* utils.c (vfprintf_unfiltered): If outputting timestamps, end
	output with a newline if it wasn't going to already.
2008-11-19 14:45:09 +00:00
Vladimir Prus 136d6dae62 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 11:27:18 +00:00
Pedro Alves 29c87f7ff2 * remote.c (notice_new_inferiors): Add a new inferior only when
we're going to add a new thread.
2008-11-05 21:19:45 +00:00
Pedro Alves d3fd534293 * inf-loop.c (inferior_event_handler): On INF_ERROR and
INF_REG_EVENT throwing, don't call target_async or pop_target.
	Call pop_all_targets_above.
	* remote.c (remote_close): Call remote_terminal_ours.  Don't call
	signal or target_async.
2008-11-04 20:52:24 +00:00
Pedro Alves 50c71eaf0e * remote.c (remote_start_remote): If the solib list is global,
fetch libraries and insert breakpoints after connecting.
	* infcmd.c (post_create_inferior): If the solist is shared between
	inferiors, no need to refetch it on every new inferior.
	(detach_command): If the shared library list is shared between
	inferiors, then don't clear it on every inferior detach.
	* gdbarch.sh (has_global_solist): New.
	* i386-dicos-tdep.c (i386_dicos_init_abi): Set
	gdbarch_has_global_solist.
	* target.c (target_pre_inferior): If the shared library list is
	shared between inferiors, then don't clear it here, neither
	invalidate the memory regions or clear the target description.
	(target_detach): If the shared library list is shared between
	inferiors, then don't remove breakpoints from the target here.
	(target_disconnect): Comment.
	* solib.c (update_solib_list): Check for null_ptid.
	* breakpoint.c (insert_breakpoints, update_global_location_list):
	If the shared library list is shared between inferiors, insert
	breakpoints even if there's no execution.
	(breakpoint_init_inferior): If the shared library list is shared
	between inferiors, don't delete breakpoints or mark them
	uninserted here.

	* gdbarch.c, gdbarch.h: Regenerate.
2008-11-03 14:01:27 +00:00
Tom Tromey 7c8a8b0498 * cli/cli-script.c (do_fclose_cleanup): Remove.
(script_from_file): Use make_cleanup_fclose.
	* xml-tdesc.c (do_cleanup_fclose): Remove.
	(fetch_xml_from_file): Use make_cleanup_fclose.
	* tracepoint.c (tracepoint_save_command): Use
	make_cleanup_fclose.  Always free pathname.
	* source.c (print_source_lines_base): Use make_cleanup_fclose.
	* remote.c (fclose_cleanup): Remove.
	(remote_file_put): Use make_cleanup_fclose.
	(remote_file_get): Likewise.
	* linux-nat.c (linux_nat_find_memory_regions): Use
	make_cleanup_fclose.
	(linux_nat_info_proc_cmd): Likewise.
	(linux_proc_pending_signals): Likewise.
	* fbsd-nat.c (fbsd_find_memory_regions): Use make_cleanup_fclose.
	Free file name.
	* cli/cli-dump.c (do_fclose_cleanup): Remove.
	(make_cleanup_fclose): Remove.
	* defs.h (make_cleanup_fclose): Declare.
	* utils.c (do_fclose_cleanup): New function.
	(make_cleanup_fclose): Likewise.
2008-10-28 15:22:13 +00:00
Pedro Alves 8a30517206 * target.h (struct target_ops) <to_supports_multi_process>: New
field.
	(target_supports_multi_process): New define.
	* target.c (update_current_target): Inherit and de_fault
	to_supports_multi_process.
	* infcmd.c (attach_command): Allow attaching to multiple processes
	if the target supports it.
	(detach_command): If the target claims there is still execution,
	don't clear the thread list.
	* remote.c (remote_supports_multi_process): New.
	(init_remote_ops): Register remote_supports_multi_process.
2008-10-27 12:43:24 +00:00
Pedro Alves 74531fed1f Remote non-stop mode support.
* remote.c (pending_stop_reply): New.
	(struct remote_state) <non_stop_aware, support_vCont_t>: New
	fields.
	(remote_async_inferior_event_token)
	(remote_async_get_pending_events_token): New.
	(notice_new_inferiors): New, abstracted out from record_currthread.
	(record_currthread): Call it.
	(remote_threads_info): Default threads to running in non-stop
	mode.  In non-stop mode, only qfThreadInfo is supported.
	(remote_close): Discard all pending stop_replies.  Close the event
	sources.
	(set_stop_requested_callback): New.
	(remote_start_remote): Implement non-stop mode startup.  In
	all-stop, don't clear the thread list here.
	(remote_non_stop_feature): New.
	(remote_protocol_features): Add a "QNonStop" feature.
	(remote_open_1): Clear cached_wait_status and non_stop_aware.
	Clear the thread list here.
	(remote_detach_1): Discard pending stop replies of the process we
	detached from.
	(extended_remote_attach_1): Implement non-stop mode.
	(remote_vcont_probe): Recognize `vCont;t'.
	(remote_vcont_resume): Implement non-stop mode.
	(remote_resume): Don't set waiting_for_stop_reply in non-stop
	mode.
	(remote_stop_ns): New.
	(remote_stop): Rename to ...
	(remote_stop_as): ... this.  If we have a cached wait status,
	don't bother interrupting the remote.
	(remote_stop): Reimplement as wrapper around remote_stop_as and
	remote_stop_ns.
	(interrupt_query): Don't query in async mode.
	(struct cached_reg, cahed_reg_t): New.
	(struct stop_reply): New.
	(stop_reply_queue): New.
	(stop_reply_xmalloc, stop_reply_xfree)
	(discard_pending_stop_replies, do_stop_reply_xfree)
	(queued_stop_reply, push_stop_reply, peek_stop_reply)
	(remote_parse_stop_reply, remote_get_pending_stop_replies)
	(process_stop_reply): New.
	(remote_wait_ns): New.
	(remote_wait_as): Use remote_parse_stop_reply.  Invalidate the
	notion of current general thread is a process exit was reported.
	(remote_wait): Call remote_wait_ns in non-stop mode.
	(handle_notification): New.
	(putpkt_binary): Handle notifications.  Don't care for
	waiting_for_stop_reply in non-stop mode.
	(getpkt_sane): Rename to ...
	(getpkt_or_notif_sane_1): ... this.  Add `expecting_notif'
	argument.  Handle it.  Handle notifications.
	(getpkt_sane): Reimplement as wrapper around getpkt_or_notif_sane_1.
	(getpkt_or_notif_sane): New.
	(select_new_thread_callback): Check for exited state instead of
	comparing the ptid against minus_one_ptid.
	(extended_remote_create_inferior_1): Query the remote about the
	current thread.
	(remote_supports_non_stop): New.
	(init_remote_ops): Register it.
	(remote_async_inferior_event_handler): New.
	(remote_async_get_pending_events_handler): New.

	* infcmd.c (proceed_thread_callback): Comment.
	(proceed_after_attach_callback, proceed_after_attach): New.
	(attach_command_post_wait): In background attach, resume all
	threads, but only if they are unsignalled, and not explicitly
	stopped.  In foreground attach, in non-stop mode, make sure to
	stop all threads of the just attached to process.
	(attach_command): In non-stop mode: If doing a background attach,
	stop at least one thread.  If a foreground attach, stop all
	threads.
2008-10-24 20:38:26 +00:00
Michael Snyder b2175913c5 2008-10-17 Michael Snyder <msnyder@vmware.com>
Target interface for reverse debugging.
	* target.h (enum target_waitkind):
	Add new wait event, TARGET_WAITKIND_NO_HISTORY.
	(struct target_ops): New method to_can_execute_reverse.
	(target_can_execute_reverse): New macro.
	* target.c (update_current_target): Inherit to_can_execute_reverse.

	Remote interface for reverse debugging.
	* remote.c (remote_can_execute_reverse): New target method.
	(remote_resume): Check for reverse exec direction, and send
	appropriate command to target.
	(remote_wait_as): Check target response for NO_HISTORY status.
	Also check for empty reply (target doesn't understand "bs" or "bc).
	(remote_vcont_resume): Jump out if attempting reverse execution.

	Event handling interface for reverse debugging.
	* infrun.c (execution_direction): New state variable.
	(enum inferior_stop_reason): Add NO_HISTORY reason.
	(handle_inferior_event): Handle TARGET_WAITKIND_NO_HISTORY.
	Handle stepping over a function call in reverse.
	Handle stepping thru a line range in reverse.
	Handle setting a step-resume breakpoint in reverse.
	Handle stepping into a function in reverse.
	Handle stepping between line ranges in reverse.
	(print_stop_reason): Print reason for NO_HISTORY.
	(step_into_function): Rename to handle_step_into_function.
	(handle_step_into_function_backward): New function.
	(set_exec_direction_func, show_exec_direction_func): New funcs.
	(proceed): No need to singlestep over a breakpoint
	when resuming in reverse.

	* inferior.h (enum exec_direction_kind): New enum.
	(execution_direction): Export new execution state variable.

	* breakpoint.c (make_breakpoint_silent): New function.
	* breakpoint.h (make_breakpoint_silent): Export.
	* infcmd.c (finish_command): Check for reverse exec direction.
	(finish_backward): New function, handle finish cmd in reverse.

	User interface for reverse execution.
	* Makefile.in (reverse.c): New file.
	* reverse.c: New file.  User interface for reverse execution.
2008-10-17 19:43:47 +00:00
Pedro Alves 153ccabd86 * remote.c (record_currthread): Add inferior before child threads.
(remote_threads_info): Check for exited threads.  Mention
	notification order.
2008-10-17 01:08:08 +00:00
Pedro Alves 3c9c4b83df * remote.c (set_general_process): New.
(remote_check_symbols): Use it.
2008-10-16 14:39:54 +00:00
Pedro Alves 5c952c9bcb * remote.c (push_remote_target): Delete.
* target.h (push_remote_target): Delete declaration.
2008-10-16 14:03:18 +00:00
Pedro Alves ce5ce7eded * remote.c (remote_close): Unregister remote_desc from the event
loop.  Always restore the SIGINT handler.  Discard all inferiors
	here.
	(remote_detach_1, remote_disconnect): Don't unregister the file
	descriptor from the event loop here.
	(interrupt_query, readchar, getpkt_sane): Pop the target instead
	of morning the current inferior.
	(remote_kill): Don't unregister the file descriptor from the event
	loop here.
	(remote_mourn_1): Don't discard inferiors here.
2008-10-15 21:39:53 +00:00
Pedro Alves 5fe0451782 * remote.c (remote_start_remote): Always tell the stub if we're in
extended-remote.
2008-10-10 14:46:31 +00:00
Pedro Alves c8e38a496b * remote.c (remote_wait): Rename to...
(remote_wait_as): ... this.  Don't loop here.  If the remote
	didn't stop, return TARGET_WAITKIND_IGNORE.
	(remote_wait): New, reimplemented on top of remote_wait_as.
2008-10-09 18:45:44 +00:00
Pedro Alves c8d104ad69 * remote.c (remote_open_1): Move acknowledging any pending ack,
querying supported features, activating noack mode, finding the
	target description, enabling extended remote, and checking remote
	symbols from here ...
	(remote_start_remote): ... to here.
	(remote_open_1): Don't pop the target if it is already gone.
	* target.c (unpush_target): Check for the dummy target.
2008-10-09 03:24:51 +00:00
Pedro Alves e24a49d86d * remote.c (struct remote_state) <waiting_for_stop_reply>: New
field.
	(remote_open_1): Clear waiting_for_stop_reply.
	(remote_resume): Set waiting_for_stop_reply.
	(remote_wait): Clear or set waiting_for_stop_reply accordingly.
	(putpkt_binary): If we're in async mode and waiting for a stop
	reply, bail out with an error.
	(extended_remote_mourn_1): Clear waiting_for_stop_reply.
2008-10-08 19:16:31 +00:00
Pedro Alves 3084dd775a * remote.c (remote_get_thread_info): If the remote doesn't support
the query, bail out.
2008-10-08 15:00:29 +00:00
Paul Pluzhnikov d1a4106143 2008-10-03 Paul Pluzhnikov <ppluzhnikov@google.com>
* utils.c, defs.h (gdb_buildargv): New fn. Wrap buildargv
	and check for out-of-memory condition.
	* exec.c (exec_file_command): Call it.
	* infrun.c (handle_command, xdb_handle_command): Likewise.
	* interps.c (interpreter_exec_cmd): Likewise.
	* linux-nat.c (linux_nat_info_proc_cmd): Likewise.
	* procfs.c (info_proc_cmd): Likewise.
	* remote-mips.c (common_open): Likewise.
	* remote-sim.c (gdbsim_kill, gdbsim_create_inferior)
	(gdbsim_open): Likewise.
	* remote.c (extended_remote_run, remote_put_command)
	(remote_get_command, remote_delete_command): Likewise.
	* ser-mingw.c (pipe_windows_open): Likesise.
	* source.c (add_path, show_substitute_path_command)
	(unset_substitute_path_command, set_substitute_path_command):
	Likewise.
	* stack.c (backtrace_command): Likewise.
	* symfile.c (symbol_file_command, generic_load)
	(add_symbol_file_command): Likesise.
	* symmisc.c (maintenance_print_symbols, maintenance_print_psymbols)
	(maintenance_print_msymbols): Likewise.
2008-10-03 16:36:10 +00:00
Pedro Alves 181e7f9393 Remove the attach_flag global, and make it per-inferior.
* inferior.h (attach_flag): Delete.
	(inferior_process): Declare.
	* solib.c (update_solib_list): Adjust.
	* gnu-nat.c (gnu_create_inferior, gnu_attach): Adjust.
	* inf-ptrace.c (inf_ptrace_detach): Adjust.
	(inf_ptrace_files_info): Get it from the current inferior.
	* inf-ttrace.c (inf_ttrace_attach): Adjust.
	(inf_ttrace_files_info): Get it from the current
	inferior.
	* inflow.c (terminal_inferior, terminal_ours_1, set_sigint_trap)
	(clear_sigint_trap): Get it from the current process.
	* remote.c (extended_remote_attach_1)
	(extended_remote_create_inferior_1): Adjust.
	* top.c (quit_confirm, quit_target): Get it from the current inferior.
	* procfs.c (do_detach): Adjust.
	(procfs_wait): Get it from the event inferior.
	(procfs_files_info): Get it from the current inferior.
	* nto-procfs.c (procfs_files_info): Likewise.
	(procfs_attach): Adjust.  Set the attach_flag here.
	(do_attach): Don't set it here.
	(procfs_detach): Don't clear it.
	(procfs_mourn_inferior): Don't clear it.
	* solib-osf.c (osf_solib_create_inferior_hook): Adjust.
	* target.c (attach_flag): Delete.
	(generic_mourn_inferior): Don't clear it.
	* win32-nat.c (get_win32_debug_event): Get it from the event
	process.
	(do_initial_win32_stuff): Add attaching argument.  Set attach_flag
	in the inferior accordingly.
	(win32_attach): Don't set the attach_flag here.  Pass 1 to
	do_intial_win32_stuff.
	(win32_files_info): Get it from the current inferior.
	(win32_create_inferior): Dont clear attach_flag here.  Pass 0 to
	do_intial_win32_stuff.
2008-09-22 15:21:30 +00:00
Pedro Alves 82f7388440 Implement remote multi-process extensions.
* remote.c (struct remote_state): Add extended and
	multi_process_aware fields.
	(remote_multi_process_p): New.
	(PACKET_vKill): New.
	(record_currthread): Use thread_change_ptid.  Notice new
	inferiors.
	(set_thread, remote_thread_alive): Use write_ptid.
	(write_ptid, read_ptid): New.
	(remote_current_thread, remote_threads_extra_info): Use them.
	(remote_threads_info): Likewise.  Detect new inferiors.
	(remote_start_remote): Add inferior to inferior list.
	(remote_multi_process_feature): New.
	(remote_protocol_features): Add "multiprocess" feature.
	(remote_query_supported): Pass "multiprocess+" as supported
	features.
	(remote_open_1): Clear multi_process_aware.  Set extended
	accordingly.
	(remote_detach_1): Detach current process.  Use extended packet
	format for extended-remote multi-process.  Detach process from the
	inferior list.  Only mourn after printing output.
	(extended_remote_attach_1): Add process to the inferior list.
	(remote_vcont_resume): Use write_ptid to pass the thread ids.
	(remote_wait): Use read_ptid.  Implement the extended
	multi-process extension format of the 'W' and 'X' reply packets.
	Remove exited inferiors from inferior list.
	(remote_xfer_memory): Set general thread.
	(remote_vkill): New.
	(extended_remote_kill): New.
	(remote_mourn_1): Discard all inferiors.
	(select_new_thread_callback): New.
	(extended_remote_mourn_1): If there are more processes to debug,
	switch to a thread in another process, and don't pop the target.
	(extended_remote_create_inferior_1): Add the new process to the
	inferior list.
	(remote_stopped_by_watchpoint): Indenting.
	(remote_xfer_partial): Set the general thread.
	(remote_pid_to_str): If the remote is multi-process aware, print
	the process id as well as the thread id.
	(remote_get_thread_local_address): Use write_ptid.
	(init_extended_remote_ops): Register extended_remote_kill.
	(_initialize_remote): Register new packets.  Change
	magic_null_ptid's, not_sent_ptid's and any_thread_ptid's pid
	member to 42000.

	* thread.c (thread_change_ptid): Also account for the inferior pid
	changing.

	* inferior.h (discard_all_inferiors): Declare.
	* inferior.c (discard_all_inferiors): New.
2008-09-22 15:18:30 +00:00
Ulrich Weigand 3e88cf8dfb * remote.c: Include "gdb_stat.h". 2008-08-27 13:25:21 +00:00
Ulrich Weigand f1838a9841 ChangeLog:
* remote.h (remote_filename_p, remote_bfd_open): Add prototypes.
	* remote.c (remote_bfd_iovec_open, remote_bfd_iovec_close,
	remote_bfd_iovec_pread, remote_bfd_iovec_stat, remote_filename_p,
	remote_bfd_open): New functions.
	(remote_hostio_send_command): Fail safely if remote connection
	is not set up.

	* solist.h (solib_open): Remove prototype.
	(solib_bfd_open): Add prototype.
	* solib.c: Include "remote.h".
	(solib_open): Remove, replace by ...
	(solib_bfd_open): ... this new function.  Handle remote BFDs.
	(solib_map_sections): Replace solib_open by solib_bfd_open.
	* solib-frv.c: Include "exceptions.h".
	(enable_break2): Replace solib_open by solib_bfd_open.
	* solib-svr4.c: Include "exceptions.h".
	(enable_break): Replace solib_open by solib_bfd_open.

	* symfile.c: Include "remote.h".
	(build_id_verify): Handle remote BFDs.
	(separate_debug_file_exists): Use BFD to access file.  Handle
	remote BFDs.
	(symfile_bfd_open): Handle remote BFDs.
	(reread_symbols): Handle remote BFDs.

	* NEWS: Mention "remote:" argument prefix to "set sysroot".

doc/ChangeLog:

	* gdb.texinfo (Commands to Specify Files): Document "remote:"
	argument prefix to "set sysroot".
2008-08-26 17:30:35 +00:00
Ulrich Weigand 1cf3db46a6 * gdbarch.sh (target_gdbarch): New global variable.
(deprecated_current_gdbarch_select_hack): Set it.
	* gdbarch.c, gdbarch.h: Regenerate.

	* arch-utils.c (gdbarch_update_p): Use target_gdbarch instead
	of current_gdbarch.
	* target-descriptions.c (target_find_description): Likewise.
	* arm-tdep.c (arm_update_current_architecture): Likewise.
	(show_fp_model, arm_show_abi, arm_show_fallback_mode,
	arm_show_force_mode): Likewise.
	* mips-tdep.c (show_mask_address, show_mipsfpu_command,
	show_mips_abi): Likewise.
	* mep-tdep.c (me_module_register_set, current_me_module): Likewise.

	* target.c (target_translate_tls_address): Use target_gdbarch
	instead of current_gdbarch.
	* remote.c (struct packet_reg): Likewise.
	(get_remote_arch_state, packet_reg_from_regnum,
	packet_reg_from_pnum, remote_check_symbols, remote_wait,
	remote_address_masked, remote_insert_breakpoint,
	remote_insert_hw_breakpoint, remote_read_description): Likewise.
	* remote-m32r-sdi.c (m32r_resume, m32r_wait): Likewise.
	* remote-mips.c (mips_open, mips_common_breakpoint): Likewise.
	* cris-tdep.c (cris_can_use_hardware_watchpoint): Likewise.

	* solib.c (solib_open, solib_map_sections, solib_read_symbols,
	solib_add, info_sharedlibrary_command, solib_address,
	solib_create_inferior_hook, in_solib_dynsym_resolve_code,
	solib_global_lookup): Likewise.
	* solib-frv.c (enable_break2, frv_relocate_main_executable): Likewise.
	* solib-irix.c (irix_current_sos, irix_open_symbol_file_object):
	Likewise.
	* solib-sunos.c (sunos_solib_create_inferior_hook): Likewise.
	* solib-svr4.c (exec_entry_point, enable_break, svr4_free_so,
	set_solib_svr4_fetch_link_map_offsets, svr4_fetch_link_map_offsets):
	Likewise.
	* nto-tdep.c (nto_find_and_open_solib, nto_init_solib_absolute_prefix,
	nto_truncate_ptr): Likewise.
	* mips-linux-tdep.c (mips_linux_in_dynsym_stub): Likewise.
2008-08-26 17:21:29 +00:00
Vladimir Prus c6ebd6cf99 * target.c (target_async_permitted, target_async_permitted_1)
(set_maintenance_target_async_permitted)
        (show_maintenance_target_async_permitted): New.
        (initialize_targets): Register 'set target-async'.
        * target.h (target_async_permitted): Declare.
        * linux-nat.c (linux_nat_async_enabled)
        (linux_nat_async_permitted, set_maintenance_linux_async_permitted)
        (show_maintenance_linux_async_permitted): Remove.
        (sigchld_handler, linux_nat_is_async_p, linux_nat_can_async_p)
        (get_pending_events, linux_nat_async): Use target_async_permitted.
        (linux_nat_set_async_mode): Remove, moving the only used bits
        into...
        (linux_nat_setup_async): This.
        (_initialize_linux_nat): Do not register 'maint set linux-async'.
        Use linux_nat_setup_async.
        * remote.c (remote_async_permitted, remote_async_permitted_set)
        (set_maintenance_remote_async_permitted)
        (show_maintenance_remote_async_permitted): Remove.
        (remote_open_1, remote_terminal_inferior, remote_can_async_p)
        (remote_is_async_p): Use target_async_permitted.
        (_initialize_remote): Don't register 'main set remote-async'.
        * mi/mi-cmds.c (mi_cmds): Register -list-target-features.
        * mi/mi-cmds.h (mi_cmd_list_target_features): New.
        * mi/mi-main.c (mi_cmd_list_target_features): New.
2008-08-19 13:05:02 +00:00
Sandra Loosemore a6f3e723d3 gdb/doc/
2008-08-12  Sandra Loosemore  <sandra@codesourcery.com>

	* gdb.texinfo (Remote Configuration): Document set remote noack-packet.
	(Remote Protocol): Add Packet Acknowledgment to menu.
	(Overview): Mention +/- can be disabled, and point to new section
	where this is discussed in detail.
	(General Query Packets): Document QStartNoAckMode packet, and
	corresponding qSupported reply.
	(Packet Acknowledgment): New section.

gdb/
2008-08-12  Pedro Alves  <pedro@codesourcery.com>

	Add no-ack mode to the remote protocol --- optionally stop ACKing
	packets and responses when we have a reliable communication
	medium.

	Based on Apple's GDB, by Jason Molenda <jmolenda@apple.com>

	* remote.c (struct remote_state): Add noack_mode field.
	(PACKET_QStartNoAckMode): New.
	(remote_start_remote): Don't any outstanding packet here.
	(remote_open_1): Clear noack_mode.  Ack any outstanding packet
	here.  Activate noack mode if requested.
	(remote_protocol_features): Add QStartNoAckMode.
	(remote_open_1):
	(putpkt_binary): Don't send ack in noack mode.
	(read_frame): Don't recompute the checksum in noack mode.
	(getpkt_sane): Skip sending ack if in noack mode.
	(_initialize_remote): Add set/show remote noack mode.
	* NEWS:  Note the new features.

gdb/gdbserver/
2008-08-12  Pedro Alves  <pedro@codesourcery.com>

	* remote-utils.c (noack_mode, transport_is_reliable): New globals.
	(remote_open): Set or clear transport_is_reliable.
	(putpkt_binary): Don't expect acks in noack mode.
	(getpkt): Don't send ack/nac in noack mode.
	* server.c (handle_general_set): Handle QStartNoAckMode.
	(handle_query): If connected by tcp pass QStartNoAckMode+ in
	qSupported.
	(main): Reset noack_mode on every connection.
	* server.h (noack_mode): Declare.
2008-08-12 15:18:31 +00:00
Pedro Alves 60e569b986 * remote.c (remote_threads_extra_info): Don't query the remote
server about info on the internally added main thread.
2008-07-24 15:28:42 +00:00
Pedro Alves 94cc34afe2 Non-stop inferior control.
* infrun.c (resume): In non-stop mode, always resume just one
	thread.
	(proceed): Don't call prepare_to_proceed in non-stop mode.
	(fetch_inferior_event): In non-stop mode, switch context before
	handling the event.
	(error_is_running, ensure_not_running): New.
	(handle_inferior_event): In non-stop mode: Mark only the event
	thread as stopped.  Require that the target module manages adding
	threads to the thread list.  Assert that there isn't a
	deferred_step_ptid set.  Don't switch to infwait_thread_hop_state.
	(normal_stop): Only mark not-running if inferior hasn't exited.
	In non-stop mode, only mark the event thread.

	* thread.c:Include "cli/cli-decode.h".
	(print_thread_info): Don't read from a running thread.
	Output "(running)" if thread is running.
	(switch_to_thread): Don't read stop_pc if thread is executing.
	(do_restore_current_thread_cleanup): Don't write to a running
	thread.
	(thread_apply_all_command): Don't read from a running thread.  In
	non-stop mode, do a full context-switch instead of just switching
	threads.
	(thread_apply_command): In non-stop mode, do a full context-switch
	instead of just switching threads.
	(do_captured_thread_select): Likewise.  Inform user if selected
	thread is running.
	(_initialize_thread): Mark "info threads" and "thread" and
	async_ok.

	* inf-loop.c (inferior_event_handler): In non-stop mode, don't
	unregister the target from the event loop.

	* infcmd.c (continue_command, step_1, jump_command)
	(signal_command): Ensure the selected thread isn't running.
	(interrupt_target_command): In non-stop mode, interrupt only the
	selected thread.

	* inferior.h (error_is_running, ensure_not_running): Declare.

	* target.h (struct target_ops): Add ptid argument to the to_stop
	member.
	(target_stop): Add ptid_t argument.

	* target.c (update_current_target): Add ptid argument to to_stop's
	type.
	(debug_to_stop): Add ptid_t argument.
	(debug_to_rcmd): Set to_stop_ptid.

	* remote.c (remote_stop): Add ptid_t argument.
	(async_remote_interrupt): Add inferior_ptid to target_stop.
	* inf-ptrace.c (inf_ptrace_stop): Add ptid argument.

	* Makefile.in (thread.o): Depend on $(cli_decode_h).
2008-07-09 22:42:43 +00:00
Pedro Alves 8ea051c51f 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).
2008-07-09 22:16:15 +00:00
Jonathan Larmour 7c0f6dcc1a * remote.c (remote_insert_breakpoint): Ensure that if Z0
unsupported and we fall back to memory_insert_breakpoint, we
        use the unmodified requested address.
2008-06-27 18:56:34 +00:00
Pedro Alves c0a2216eb3 * infrun.c (start_remote): Don't clear thread list here.
* monitor.c (monitor_open): Include "gdbthread.h".  Clear thread
	list here.
	* remote.c (record_currthread): Upgrade the main thread and its
	entry in the thread list if this is the first time we hear about
	threads.
	(remote_thread_alive): Consider magic_null_ptid or a ptid without
	a tid member always alive.
	(remote_find_new_threads): Don't update the main thread here.
	(remote_start_remote): Clear thread list here.  Always add the
	main thread.
	(extended_remote_attach_1): Add the main thread here.
	(extended_remote_mourn_1): Re-add the main thread here.
	(extended_remote_create_inferior_1): Add a main thread.

	* Makefile.in (monitor.o): Depend on $(gdbthread_h).
2008-06-27 11:54:21 +00:00
Pedro Alves 79d7f22901 Use ptid_t.tid to store thread ids instead of ptid_t.pid.
* remote.c (magic_null_ptid, not_sent_ptid, any_thread_ptid): New
	globals.
	(general_thread, continue_thread): Change type to ptid_t.
	(record_currthread): Take a ptid_t parameter instead of an
	integer.
	(MAGIC_NULL_PID): Delete.
	(set_thread): Take a ptid_t parameter and adjust.
	(set_general_thread, set_continue_thread): New.
	(remote_thread_alive, remote_newthread_step)
	(remote_current_thread, remote_find_new_threads)
	(remote_threads_info, remote_start_remote, remote_vcont_resume)
	(remote_resume_1, remote_wait, extended_remote_create_inferior_1)
	(threadalive_test, remote_pid_to_str)
	(remote_get_thread_local_address): Adjust.
	(_initialize_remote): Initialize magic_null_ptid, not_sent_ptid
	and any_thread_ptid.
2008-06-27 11:31:40 +00:00
Pedro Alves 060871df59 * NEWS: Mention support removal of undocumented S AA p PID stop
reply packet.

	* remote.c (remote_wait): Remove undocumented S AA p PID support.
2008-06-11 12:56:36 +00:00
Doug Evans b4f62b573f * remote.c (remote_wait): Include beginning of malformed packet
in error output.
2008-06-09 20:43:48 +00:00
Pedro Alves 75c9938534 Replace 'target async' by 'maintenance set remote-async' and
'target remote' combination.

	* remote.c (remote_async_wait): Merge into remote_wait, and
	remove.
	(remote_async_permitted, remote_async_permitted_set): New
	variables.
	(set_maintenance_remote_async_permitted)
	(show_maintenance_remote_async_permitted): New functions.
	(remote_async_ops, extended_async_remote_ops): Delete.
	(remote_async_open, extended_remote_async_open): Delete.
	(remote_open_1): Drop async_p parameter.  Update callers.  Replace
	async_p with remote_async_permitted checks.
	(extended_async_remote_attach): Delete.
	(remote_resume, remote_async_resume): Merge and leave remote_resume.
	(remote_async_terminal_inferior): Rename to...
	(remote_terminal_inferior): ... this, and add
	remote_async_termitted check.
	(remote_async_terminal_ours): Rename to...
	(remote_terminal_ours): ... this, and add remote_async_termitted
	check.
	(remote_wait, remote_async_wait): Merge and leave remote_wait
	only.
	(remote_kill, remote_async_kill): Merge and leave remote_kill
	only.
	(remote_async_mourn, extended_async_remote_mourn): Delete.
	(extended_remote_create_inferior_1): Drop async_p parameter.
	Update callers.  Always use extended_remote_ops.
	(extended_remote_async_create_inferior): Delete.
	(remote_return_zero): Delete.
	(init_remote_ops): Register remote_can_async_p, remote_async,
	remote_async_mask, remote_terminal_inferior and
	remote_terminal_ours.
	(remote_can_async_p, remote_is_async_p): Check for
	remote_async_permitted.
	(init_remote_async_ops, init_extended_async_remote_ops): Remove.
	(set_remote_cmd): Don't add async and extended-async targets.
	(_initialize_remote): Add set/show remote-async maintenance
	commands.

	gdb/doc/
	* gdb.texinfo (-target-select): Remove reference to target async.
	(Maintenance Commands): Document "maint set/show remote-async".
2008-06-05 21:35:00 +00:00
Pedro Alves cf30943b93 * remote.c (kill_kludge): Delete.
(remote_wait, remote_async_wait): Don't set it.
	(remote_kill, remote_async_kill): Don't do anything with it.
2008-06-05 21:13:58 +00:00
Daniel Jacobowitz 8d38543126 * remote.c (get_offsets): Handle a single segment.
* symfile.c (symfile_map_offsets_to_segments): Allow more bases
	than segments.
2008-06-05 16:17:54 +00:00
Pedro Alves 39237dd126 * remote.c (init_extended_remote_ops): Fix typo. 2008-05-17 11:28:30 +00:00
Doug Evans 10e0fa18cb * remote.c (remote_search_memory): Fix capilization in error messages. 2008-05-09 17:45:58 +00:00
Doug Evans 08388c79d5 New "find" command.
* NEWS: Document find command and qSearch:memory packet.
	* Makefile.in (SFILES): Add findcmd.c.
	(COMMON_OBJS): Add findcmd.o.
	(findcmd.o): New rule.
	* findcmd.c: New file.
	* target.h (target_ops): New member to_search_memory.
	(simple_search_memory): Declare.
	(target_search_memory): Declare.
	* target.c (simple_search_memory): New fn.
	(target_search_memory): New fn.
	* remote.c (PACKET_qSearch_memory): New packet kind.
	(remote_search_memory): New fn.
	(init_remote_ops): Init to_search_memory.
	(init_extended_remote_ops): Ditto.
	(_initialize_remote): Add qSearch:memory packet config command.

	* gdbserver/server.h (decode_search_memory_packet): Declare.
	* gdbserver/remote-utils.c (decode_search_memory_packet): New fn.
	* gdbserver/server.c (handle_search_memory_1): New fn.
	(handle_search_memory): New fn.
	(handle_query): Process qSearch:memory packets.

	* doc/gdb.texinfo: Document "find" command, qSearch:memory packet.

	* testsuite/gdb.base/find.exp: New file.
	* testsuite/gdb.base/find.c: New file.
2008-05-09 17:02:03 +00:00
Ulrich Weigand 96ef33845a * remote.c (extended_remote_attach_1): Call target_find_description. 2008-05-08 19:48:55 +00:00
Daniel Jacobowitz 45280a5259 * remote.c (extended_remote_create_inferior_1): Clean up
before marking the target running.
2008-05-08 16:08:10 +00:00
Jie Zhang 4fff24118a * remote.c (remote_insert_breakpoint): Call get_remote_state
after gdbarch_breakpoint_from_pc is called.
	(remote_insert_hw_breakpoint): Likewise.
2008-05-07 11:54:41 +00:00
Pedro Alves b84876c212 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 17:09:35 +00:00
Vladimir Prus 32c1e744c1 Async mode fixes.
* Makefile.in (infcmd.o, inf-loop.o): Update dependencies.
        * breakpoint.c (bpstat_do_actions): In async mode,
        don't jump to top expecting stop_bpstat to be already
        updated.
        * event-loop.c (start_event_loop): Call async_enable_stdin
        on exception.
        * event-top.c (async_enable_stdin): Do nothing if sync_execution
        is not set.
        (command_handler): Do not setup continuation here.
        (command_line_handler_continuation): Move to...
        * top.c (command_line_handler_continuation): ... here.
        (execute_command): In async mode, register continuation.
        Don't check frame's language in running in async mode.
        * exceptions.c (throw_exception): Don't do exec_error_cleanups.
        * inf-loop.c (complete_execution): Inline into...
        (inferior_event_handler): ... here.  Clear target_executing before
        doing any cleanups.  Don't try to show prompt if the target was
        resumed.
        * infcmd.c (signal_command): Add support for async mode.
        (finish_command): Only add continuation if the target was
        successfully resumed.
        * remote.c (init_async_opts): Register to_get_thread_local_address
        handler.
        * mi/mi-interp.c (mi_cmd_interpreter_exec): Don't mess
        with sync_execution.
        * tui/tui-interp.c (tui_command_loop): Call async_enable_stdin
        on exception.
2008-03-14 18:57:44 +00:00
Vladimir Prus 4cf46804f3 Remove unused remote.c hooks.
* remote.c (deprecated_target_resume_hook)
        (deprecated_target_wait_loop_hook): Remove.
        (remote_resume): Do not call deprecated_target_resume_hook.
        (remote_wait): Do not call deprecated_target_wait_loop_hook.
        (remote_async_wait): Likewise.
2008-03-14 17:44:43 +00:00
Joel Brobecker be86555cb7 * remote.c (extended_remote_attach_1): Make local variable pid an int
instead of a pid_t.
2008-03-07 19:41:06 +00:00
Daniel Jacobowitz b803fb0f0f * Makefile.in (mingw-hdep.o, posix-hdep.o, remote-fileio.o): Update.
* event-loop.c (call_async_signal_handler): New.
	* event-loop.h (call_async_signal_handler)
	(gdb_call_async_signal_handler): Declare.
	(mark_async_signal_handler): Add comments.
	* event-top.c (handle_sigint): Use gdb_call_async_signal_handler.
	* mingw-hdep.c (sigint_event, sigint_handler): New.
	(gdb_select): Use them.  Wait for the readline signal handler
	to finish.
	(gdb_call_async_signal_handler, _initialize_mingw_hdep): New functions.
	* posix-hdep.c (gdb_call_async_signal_handler): New function.
	* remote-fileio.c (sigint_fileio_token, async_remote_fileio_interrupt):
	New.
	(remote_fileio_ctrl_c_signal_handler): Use
	gdb_call_async_signal_handler.
	(initialize_remote_fileio): Initialize sigint_fileio_token.
	* remote.c (initialize_sigint_signal_handler, handle_remote_sigint): Do
	not initialize tokens here.
	(handle_remote_sigint_twice): Likewise.  Reinstall
	handle_remote_sigint.
	(async_remote_interrupt_twice): Just call interrupt_query.
	(cleanup_sigint_signal_handler): Do not delete tokens.
	(remote_interrupt, remote_interrupt_twice): Use
	gdb_call_async_signal_handler.
	(interrupt_query): Reinstall the default signal handler.
	(_initialize_remote): Initialize tokens here.
2008-03-05 17:21:10 +00:00
Daniel Jacobowitz 20b4711e05 * remote.c (remote_wait, remote_async_wait): Stop if we receive
an error.
2008-02-27 21:00:01 +00:00