| Age | Commit message (Collapse) | Author | Files | Lines |
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* breakpoint.h (enum bptype): Remove bp_catch_load and bp_catch_unload.
(struct breakpoint): Remove fields dll_pathname and
triggered_dll_pathname.
(bpstat_get_triggered_catchpoints, ep_is_shlib_catchpoint): Delete.
* breakpoint.c (ep_is_catchpoint): Remove handling of
bp_catch_load and bp_catch_unload.
(print_it_typical, bpstat_check_location, bpstat_what)
(print_one_breakpoint_location, print_one_breakpoint_location)
(user_settable_breakpoint, allocate_bp_location)
(set_raw_breakpoint_without_location, mention, delete_breakpoint,
(breakpoint_re_set_one, disable_command, enable_command): Likewise.
(ep_is_shlib_catchpoint, bpstat_get_triggered_catchpoints)
(catch_load_command_1, catch_unload_command_1): Delete.
(_initialize_breakpoint): Remove the "catch load" and "catch unload"
command creation.
* infrun.c (handle_inferior_event): Remove the handling of
load/unload catchpoint events.
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(do_all_inferior_continuations)
(discard_all_inferior_continuations): Declare.
* utils.c (add_inferior_continuation)
(do_all_inferior_continuations)
(discard_all_inferior_continuations): New.
* inferior.h (struct inferior) <continuations>: New field.
* inferior.c (free_inferior): Discard all the inferior
continuations.
* inf-loop.c (inferior_event_handler): Do all current inferior
continuations.
* infcmd.c (attach_command): Register an inferior continuation
instead of a thread continuation.
* infrun.c (handle_inferior_event): If stop_soon is
STOP_QUIETLY_NO_SIGSTOP, also expect a TARGET_SIGNAL_0.
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* infrun.c (write_inferior_status_register): Delete.
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* infrun.c (handle_inferior_event): Handle dynamic symbol
resolution in reverse.
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Pedro Alves <pedro@codesourcery.com>
* infrun.c (can_use_displaced_stepping): Change type to
const char pointer.
(can_use_displaced_stepping_auto): New string.
(can_use_displaced_stepping_on): New string.
(can_use_displaced_stepping_off): New string.
(can_use_displaced_stepping_enum): New array.
(show_can_use_displaced_stepping): In auto mode, also show
the current effect of the option.
(use_displaced_stepping): Return non-zero if displaced
stepping is auto, and can be used with GDBARCH, and in
non-stop mode. Return non-zero if displaced stepping is on,
and can be used with GDBARCH. Return zero otherwise.
(_initialize_infrun): Make the "set displaced-stepping"
command an enum command. Change its class to class_run.
Place it in the top level set list. Extend help to describe
the auto mode.
2008-10-24 Hui Zhu <teawater@gmail.com>
Pedro Alves <pedro@codesourcery.com>
* gdb.texinfo (displaced-stepping): Describe the auto mode
setting, and say it's the default. This is now a mainstream
setting instead of a maintenance setting.
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2008-10-23 Pedro Alves <pedro@codesourcery.com>
* defs.h: Mention ptid_is_pid.
* inferior.h (ptid_is_pid): Declare.
* gdbthread.h (struct thread_info) <stop_requested>: New field.
(set_stop_requested): Declare.
* infcmd.c (interrupt_target_1): Call set_stop_requested.
* infrun.c (clear_proceed_status): Clear stop_requested.
(infrun_thread_stop_requested_callback,
infrun_thread_stop_requested): New.
(handle_inferior_event): If a TARGET_SIGNAL_TRAP is reported on a
thread that had an explicit stop request, pretend we got a
TARGET_SIGNAL_0. Always stop if the thread had an explicit stop
request.
(print_stop_reason): In the SIGNAL_RECEIVED case, if we're not
outputting to MI, and we got a TARGET_SIGNAL_0, print "# Stopped",
instead of mentioning signal 0.
(ptid_is_pid): New.
* thread.c (set_stop_requested): New.
* linux-nat.c (queued_waitpid): Rename to ...
(queued_waitpid_1): ... this. Add `peek' argument. Handle it.
(queued_waitpid): New, as wrapper to queued_waitpid_1.
(push_waitpid): Push the SIGTRAP to the local event queue, to the
kernel's.
(send_sigint_callback): Delete.
(linux_nat_stop_lwp): New.
(linux_nat_stop): Use it.
gdb/doc/
2008-10-23 Pedro Alves <pedro@codesourcery.com>
* observer.texi (thread_stop_requested): New.
gdb/testsuite/
2008-10-23 Pedro Alves <pedro@codesourcery.com>
* lib/mi-support.exp (mi_expect_interrupt): Expect signal 0
instead of SIGINT.
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* infrun.c (handle_inferior_event): Set "stop_pc" when
TARGET_WAITKIND_NO_HISTORY.
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reverse.
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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.
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* breakpoint.c (breakpoint_init_inferior): Clean up the moribund
locations list.
(moribund_breakpoint_here_p): Record the moribund
location in the moribund_locations vector.
* breakpoint.h (moribund_breakpoint_here_p): Declare.
(displaced_step_fixup): Check if the breakpoint the thread was
trying to step over has been removed since having been placed in
the displaced stepping queue.
(adjust_pc_after_break): In non-stop mode, check for a moribund
breakpoint at the stop pc.
(handle_inferior_event): Don't retire moribund breakpoints on
TARGET_WAITKIND_IGNORE.
gdb/testsuite/
* gdb.mi/mi-nsmoribund.exp, gdb.mi/nsmoribund.c: New test.
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while we're here.
(displaced_step_fixup): Make sure target_resume sees ptid as
inferior_ptid. Add debug output.
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* infrun.c (handle_inferior_event): Fix typo in comment.
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* 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.
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comments.
(mips_linux_skip_resolver): Also use glibc_skip_solib_resolver.
(mips_linux_init_abi): Do not override skip_trampoline_code.
* configure.tgt (mips*-*-linux*): Add glibc-tdep.o.
* mips-tdep.c (mips32_scan_prologue): Stop scanning at branches.
(mips_stub_frame_sniffer): Use the stub frame sniffer for PIC stubs.
(mips_skip_mips16_trampoline_code): Rename from
mips_skip_trampoline_code.
(mips_skip_pic_trampoline_code, mips_skip_trampoline_code): New.
* infrun.c (handle_inferior_event): Do not pass zero to
in_solib_dynsym_resolve_code.
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inline the required bits.
* breakpoint.h (enum inf_context): Add inf_execd.
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context-switch before doing anything else.
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* infcmd.c (attach_command_post_wait): Adjust.
(attach_command): Likewise.
* inferior.h (stop_soon): Delete.
(struct inferior): Add stop_soon member.
* infrun.c (stop_soon): Delete.
(clear_proceed_status, start_remote)
(fetch_inferior_event, handle_inferior_event): Adjust.
(signal_stop_state): Don't check stop_soon here. Check in callers
instead.
(save_inferior_status, restore_inferior_status): Adjust.
* linux-nat.c (linux_nat_resume, linux_nat_wait): Always pass
signals to common code if starting up the inferior.
* inferior.h (struct inferior_info): Added stop_soon member.
* inferior.c (add_inferior) Clear stop_soon.
* mips-tdep.c (heuristic_proc_start): Adjust.
* nto-procfs.c (procfs_create_inferior): Adjust.
* solib-irix.c (irix_solib_create_inferior_hook): Adjust.
* solib-osf.c (osf_solib_create_inferior_hook): Adjust.
* solib-sunos.c (sunos_solib_create_inferior_hook): Adjust.
* solib-svr4.c (svr4_solib_create_inferior_hook): Adjust.
* win32-nat.c (do_initial_win32_stuff): Adjust.
* alpha-tdep.c (alpha_heuristic_proc_start): Adjust.
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* infrun.c (wait_for_inferior): Move this ECS->EVENT_THREAD
initialization ...
(fetch_inferior_event): ... and this ECS->EVENT_THREAD initialization
...
(handle_inferior_event): ... here after the add_thread call together
with the local adjust_pc_after_break and reinit_frame_cache calls.
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(set_next_address): Add GDBARCH argument.
* printcmd.c (set_next_address): Use it to find pointer type.
* breakpoint.c (breakpoint_1): Update call.
* source.c (line_info): Likewise.
* findcmd.c (find_command): Use current_gdbarch to find pointer type.
* breakpoint.c (set_breakpoint_count): Use platform-neutral
types for internal variable values.
* infrun.c (handle_inferior_event): Likewise.
* source.c (forward_search_command, reverse_search_command): Likewise.
* tracepoint.c (set_tracepoint_count, set_traceframe_num,
set_tracepoint_num, set_traceframe_context): Likewise.
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* infrun.c (normal_stop): Run hook-stop last.
gdb/testsuite/
* gdb.base/hook-stop-continue.c: New.
* gdb.base/hook-stop-continue.exp: New.
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* infrun.c (context_switch): Don't save and load infrun state.
(context_switch_to): Delete.
* infcmd.c (proceed_thread_callback): Replace context_switch_to
calls by switch_to_thread calls.
* gdbthread.h (save_infrun_state, load_infrun_state): Delete.
* thread.c (main_thread_state, main_thread_executing): Delete.
(inferior_thread): Delete references to them.
(add_thread_silent): Fix case where we're adding a thread with the
same ptid as an exited thread. Remove references to
context-switching.
(load_infrun_state, save_infrun_state): Delete.
(thread_alive, is_thread_state, any_running, is_executing)
(set_executing): Remove the special handling for targets that
don't register any thread.
(restore_current_thread, thread_apply_all_command)
(do_captured_thread_select): Unconditionally call
switch_to_thread.
* mi/mi-main.c (mi_cmd_execute): Check for exited threads.
Call switch_to_thread instead of context_switch_to.
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stop_step.
* inferior.h (stop_step): Delete.
* gdbthread.h (struct thread_info): Add comments to stop_step.
(save_infrun_state, load_infrun_state): Remove stop_step argument.
* thread.c (load_infrun_state, save_infrun_state): Remove
stop_step argument, and references to it.
* infrun.c (clear_proceed_status): Clear stop_step.
(fetch_inferior_event): Adjust.
(context_switch): Don't context-switch stop_step.
(handle_inferior_event): Adjust.
(normal_stop): Adjust.
(save_inferior_status, restore_inferior_status): Adjust.
* infcmd.c (stop_step): Delete.
(step_1, step_1_continuation, step_once, until_next_command):
Adjust.
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step_multi.
* inferior.h (step_multi): Delete.
* gdbthread.h (struct thread_info): Add comments around
step_multi.
(save_infrun_state, load_infrun_state): Remove step_multi
parameter.
* thread.c (load_infrun_state, save_infrun_state): Remove
step_multi argument, and references to it.
* infcmd.c (step_multi): Delete.
(step_1): Adjust.
(step_1_continuation, until_next_command): Adjust.
* infrun.c (fetch_inferior_event): Adjust.
(context_switch): Don't context-switch step_multi.
(print_stop_reason, normal_stop): Adjust.
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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.
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proceed_to_finish.
(save_infrun_state, load_infrun_state): Remove proceed_to_finish
argument.
* thread.c (load_infrun_state, save_infrun_state): Delete
proceed_to_finish argument and references to it.
* infcall.c (call_function_by_hand): Adjust.
* infcmd.c (finish_command): Adjust.
* infrun.c (proceed_to_finish): Delete.
(clear_proceed_status): Adjust.
(context_switch): Don't context-switch proceed_to_finish.
(normal_stop, save_inferior_status, restore_inferior_status):
Adjust.
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* breakpoint.h (bpstat_do_actions): Remove bpstat* argument.
* breakpoint.c (bpstat_do_actions): Rename to ...
(bpstat_do_actions_1): ... this. Make static. Change return type
to int. Return true if a breakpoint proceeded.
(bpstat_do_actions): New, as wrapper around bpstat_do_actions_1.
(delete_breakpoint): Don't reference the global stop_bpstat; it's
gone.
* gdbthread.h (struct thread_info): Add stop_bpstat.
(save_infrun_state, load_infrun_state): Remove stop_bpstat
argument.
* thread.c (load_infrun_state, save_infrun_state): Remove
stop_bpstat argument, and the code referencing it.
* infcall.c: Include "gdbthread.h".
(call_function_by_hand): Adjust.
* exceptions.c: Include "gdbthread.h".
(throw_exception): Adjust.
* infcmd.c (stop_bpstat): Delete.
(continue_command): In all-stop, set the ignore count on the
thread that reported the stop. In non-stop, set it on the current
thread.
(finish_command_continuation): Adjust.
(program_info): Adjust.
* infrun.c (clear_proceed_status): Adjust.
(context_switch): Don't context-switch stop_bpstat.
(handle_inferior_event): Adjust.
(normal_stop): Adjust.
(save_inferior_status, restore_inferior_status): Adjust.
* inf-loop.c (inferior_event_handler): Remove parameter to
bpstat_do_actions call.
* top.c (command_loop): Remove parameter to bpstat_do_actions
call. Call it unconditionally.
* event-top.c (command_handler): Ditto.
* python/python.c (execute_gdb_command): Ditto.
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* gdbthread.h (save_infrun_state, load_infrun_state): Remove
step_over_calls argument.
* thread.c (save_infrun_state, load_infrun_state): Remove
step_over_calls argument. Adjust.
* infcmd.c (step_over_calls): Delete.
(step_1): Adjust.
* infrun.c (clear_proceed_status): Adjust.
(context_switch): Don't context-switch step_over_calls.
(handle_inferior_event, save_inferior_status)
(restore_inferior_status): Adjust.
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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.
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* dummy-frame.c: Include "observer.h".
(dummy_frame_push): Do not check for stale frames.
(dummy_frame_pop): New function.
(cleanup_dummy_frames): New function.
(_initialize_dummy_frame): Install it as inferior_created observer.
* frame.h (struct frame_id): Update comments.
(frame_id_inner): Remove prototype.
* frame.c (frame_id_inner): Make static. Add comments.
(frame_find_by_id): Update frame_id_inner safety net check to avoid
false positives for targets using non-contiguous stack ranges.
(get_prev_frame_1): Update frame_id_inner safety net check.
(frame_pop): Call dummy_frame_pop when popping a dummy frame.
* stack.c (return_command): Directly pop the selected frame.
* infrun.c (handle_inferior_event): Remove dead code.
* i386-tdep.c (i386_push_dummy_call): Update comment.
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if the thread has already exited.
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from here ...
(wait_for_inferior): ... to here.
(fetch_inferior_event): ... and here.
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queue, mark it as running.
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gdb/doc/
* observer.texi (thread_ptid_changed): New.
gdb/
* gdbthread.h (thread_change_ptid): Declare.
* infrun.c (infrun_thread_ptid_changed): New.
(_initialize_infrun): Attach infrun_thread_ptid_changed to the
thread_ptid_changed observer.
* regcache.c (regcache_thread_ptid_changed): New.
(_initialize_regcache): Attach regcache_thread_ptid_changed to the
thread_ptid_changed observer.
* thread.c (thread_change_ptid): New.
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stopping quietly.
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* gdbarch.sh: Adjust comment to refer to
in_solib_dynsym_resolve_code().
* gdbarch.h, gdbarch.c: Update.
* solib-osf.c: Ditto.
* infrun.c: Ditto.
(handle_inferior_event): Use in_solib_dynsym_resolve_code
unconditionally.
* config/mips/nm-irix5.h: Remove undef of
IN_SOLIB_DYNSYM_RESOLVE_CODE.
* gdbint.texinfo: Refer to target_so_ops.in_dynsym_resolve_code
instead of IN_SOLIB_DYNSYM_RESOLVE_CODE.
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(frame_unwind_caller_id): ... this. All callers updated.
(frame_pc_unwind): Renamed to ...
(frame_unwind_caller_pc): ... this. All callers updated.
* frame.h: Document frame_unwind_caller_WHAT functions.
(frame_unwind_id): Renamed to ...
(frame_unwind_caller_id): ... this.
(frame_pc_unwind): Renamed to ...
(frame_unwind_caller_pc): ... this.
* hppa-tdep.c (hppa_find_unwind_entry_in_block): Correct comment.
* stack.c (parse_frame_specification_1): Do not rely on
frame_unwind_id.
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before inserting breakpoints.
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* infrun.c (struct thread_stepping_state): Delete sal member.
(init_thread_stepping_state): Add local sal. Use it instead of
tss->sal.
(handle_inferior_event): New local stop_pc_sal. Use it instead of
tss->sal.
(step_into_function): Add local stop_func_sal. Use it instead of
tss->sal.
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were stopped.
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TARGET_SIGNAL_TRAP on a STOP_QUIETLY_NO_SIGSTOP.
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* 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).
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* 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).
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* infrun.c (proceed): Clear the stepping state, set
previous_inferior_ptid and clear infwait state.
(wait_for_inferior): Don't clear the stepping state, set
previous_inferior_ptid, or clear the infwait state here.
(fetch_inferior_event): Don't clear the stepping state, set
previous_inferior_ptid, or clear the infwait state here. Don't
condition on wait_for_more.
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* infrun.c (currently_stepping): Take a struct
thread_stepping_state instead of an execution_control_state.
(struct thread_stepping_state): New, split from
execution_control_state.
(gtss, tss): New globals.
(proceed): Clear the stepping state, set previous_inferior_ptid
and clear infwait state.
(init_wait_for_inferior): Clear the stepping state,
previous_inferior_ptid and infwait state.
(waiton_ptid, infwait_state): New, split from
execution_control_state.
(struct execution_control_state): Members that persist through
events moved out to either struct thred_stepping_state or made
global. Deleted unneeded wp, saved_inferior_ptid, tmpstatus.
(wait_for_inferior, fetch_inferior_event): Use local
execution_control_state. Update to execution_control_state split.
(init_execution_control_state): Adjust.
(init_thread_stepping_state): New, extracted from
init_execution_control_state.
(context_switch): Take a ptid instead of an
execution_control_state.
(context_switch_to): Adjust.
(adjust_pc_after_break): Adjust.
(init_infwait_state): New.
(handle_inferior_event): Adjust.
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* gdbthread.h: Remove unneeded forward declarations.
Include "inferior.h".
(struct thread_info): Add continuations,
intermediate_continuations, proceed_to_finish, step_over_calls,
stop_step, step_multi and stop_signal members.
(save_infrun_state): Add continuations,
intermediate_continuations, proceed_to_finish, step_over_calls,
stop_step, step_multi, stop_signal and stop_bpstat parameters.
(load_infrun_state): Add continuations,
intermediate_continuations, proceed_to_finish, step_over_calls,
stop_step, step_multi, stop_signal and stop_bpstat parameters.
* thread.c (load_infrun_state): In non-stop mode, load
continuations, intermediate_continuations, proceed_to_finish,
step_over_calls, stop_step, step_multi and stop_signal.
(save_infrun_state): Store continuations,
intermediate_continuations, proceed_to_finish, step_over_calls,
stop_step, step_multi, stop_signal and stop_bpstat.
(save_infrun_state): Store continuations,
intermediate_continuations, proceed_to_finish, step_over_calls,
stop_step, step_multi, stop_signal and stop_bpstat.
(free_thread): Clear The thread's stop_bpstat.
* inferior.h (context_switch_to): Declare.
* infrun.c (ecss): New global.
(context_switch): Context switch continuations,
intermediate_continuations, proceed_to_finish, step_over_calls,
stop_step, step_multi, stop_signal and stop_bpstat.
(wait_for_inferior): Use global ecss.
(async_ecss, async_ecs): Delete.
(fetch_inferior_event): Use global ecss.
(context_switch_to): New.
* top.c (execute_command): In non-stop, only check if the current
thread is running, in all-stop, check if there's any thread
running.
* breakpoint.c (bpstat_remove_breakpoint): New.
(bpstat_remove_breakpoint_callback): New.
(delete_breakpoint): Clear the stop_bpstats of all threads.
* mi/mi-main.c (mi_cmd_execute): In non-stop, only check if the
current thread is running, in all-stop, check if there's any
thread running.
* Makefile.in (gdbthread_h): Depend on $(inferior_h).
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* inferior.h (non_stop): Declare.
* infrun.c (non_stop, non_stop_1): New.
(set_non_stop, show_non_stop): New.
(_initialize_infrun): Add "set/show non-stop" command.
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