static void resume_cleanups (void *);
-static int hook_stop_stub (void *);
-
-static int restore_selected_frame (void *);
-
static int follow_fork (void);
static int follow_fork_inferior (int follow_child, int detach_fork);
static int currently_stepping (struct thread_info *tp);
-void _initialize_infrun (void);
-
void nullify_last_target_wait_ptid (void);
static void insert_hp_step_resume_breakpoint_at_frame (struct frame_info *);
/* Ensure that we have a process ptid. */
ptid_t process_ptid = pid_to_ptid (ptid_get_pid (child_ptid));
- target_terminal_ours_for_output ();
+ target_terminal::ours_for_output ();
fprintf_filtered (gdb_stdlog,
_("Detaching after %s from child %s.\n"),
has_vforked ? "vfork" : "fork",
if (info_verbose || debug_infrun)
{
- target_terminal_ours_for_output ();
+ target_terminal::ours_for_output ();
fprintf_filtered (gdb_stdlog,
_("Attaching after %s %s to child %s.\n"),
target_pid_to_str (parent_ptid),
/* Ensure that we have a process ptid. */
ptid_t process_ptid = pid_to_ptid (ptid_get_pid (child_ptid));
- target_terminal_ours_for_output ();
+ target_terminal::ours_for_output ();
fprintf_filtered (gdb_stdlog,
_("Detaching after fork from "
"child %s.\n"),
if (debug_infrun || info_verbose)
{
- target_terminal_ours_for_output ();
+ target_terminal::ours_for_output ();
if (exec)
{
set_current_inferior (inf);
set_current_program_space (inf->pspace);
- add_thread (ptid);
}
else
{
registers. */
target_find_description ();
+ /* The add_thread call ends up reading registers, so do it after updating the
+ target description. */
+ if (follow_exec_mode_string == follow_exec_mode_new)
+ add_thread (ptid);
+
solib_create_inferior_hook (0);
jit_inferior_created_hook ();
gdb_assert (!tp->stop_requested);
/* Install inferior's terminal modes. */
- target_terminal_inferior ();
+ target_terminal::inferior ();
/* Avoid confusing the next resume, if the next stop/resume
happens to apply to another thread. */
struct execution_control_state ecss;
struct execution_control_state *ecs = &ecss;
struct cleanup *old_chain;
- struct cleanup *defer_resume_cleanup;
int started;
/* If we're stopped at a fork/vfork, follow the branch set by the
until the target stops again. */
tp->prev_pc = regcache_read_pc (regcache);
- defer_resume_cleanup = make_cleanup_defer_target_commit_resume ();
+ {
+ scoped_restore save_defer_tc = make_scoped_defer_target_commit_resume ();
- started = start_step_over ();
+ started = start_step_over ();
- if (step_over_info_valid_p ())
- {
- /* Either this thread started a new in-line step over, or some
- other thread was already doing one. In either case, don't
- resume anything else until the step-over is finished. */
- }
- else if (started && !target_is_non_stop_p ())
- {
- /* A new displaced stepping sequence was started. In all-stop,
- we can't talk to the target anymore until it next stops. */
- }
- else if (!non_stop && target_is_non_stop_p ())
- {
- /* In all-stop, but the target is always in non-stop mode.
- Start all other threads that are implicitly resumed too. */
- ALL_NON_EXITED_THREADS (tp)
+ if (step_over_info_valid_p ())
+ {
+ /* Either this thread started a new in-line step over, or some
+ other thread was already doing one. In either case, don't
+ resume anything else until the step-over is finished. */
+ }
+ else if (started && !target_is_non_stop_p ())
+ {
+ /* A new displaced stepping sequence was started. In all-stop,
+ we can't talk to the target anymore until it next stops. */
+ }
+ else if (!non_stop && target_is_non_stop_p ())
+ {
+ /* In all-stop, but the target is always in non-stop mode.
+ Start all other threads that are implicitly resumed too. */
+ ALL_NON_EXITED_THREADS (tp)
{
/* Ignore threads of processes we're not resuming. */
if (!ptid_match (tp->ptid, resume_ptid))
if (!ecs->wait_some_more)
error (_("Command aborted."));
}
- }
- else if (!tp->resumed && !thread_is_in_step_over_chain (tp))
- {
- /* The thread wasn't started, and isn't queued, run it now. */
- reset_ecs (ecs, tp);
- switch_to_thread (tp->ptid);
- keep_going_pass_signal (ecs);
- if (!ecs->wait_some_more)
- error (_("Command aborted."));
- }
+ }
+ else if (!tp->resumed && !thread_is_in_step_over_chain (tp))
+ {
+ /* The thread wasn't started, and isn't queued, run it now. */
+ reset_ecs (ecs, tp);
+ switch_to_thread (tp->ptid);
+ keep_going_pass_signal (ecs);
+ if (!ecs->wait_some_more)
+ error (_("Command aborted."));
+ }
+ }
- do_cleanups (defer_resume_cleanup);
target_commit_resume ();
discard_cleanups (old_chain);
&& ui->async
&& !gdb_in_secondary_prompt_p (ui))
{
- target_terminal_ours ();
+ target_terminal::ours ();
observer_notify_sync_execution_done ();
ui_register_input_event_handler (ui);
}
|| (target_is_non_stop_p ()
&& moribund_breakpoint_here_p (aspace, breakpoint_pc)))
{
- struct cleanup *old_cleanups = make_cleanup (null_cleanup, NULL);
+ gdb::optional<scoped_restore_tmpl<int>> restore_operation_disable;
if (record_full_is_used ())
- record_full_gdb_operation_disable_set ();
+ restore_operation_disable.emplace
+ (record_full_gdb_operation_disable_set ());
/* When using hardware single-step, a SIGTRAP is reported for both
a completed single-step and a software breakpoint. Need to
|| (thread->stepped_breakpoint
&& thread->prev_pc == breakpoint_pc))
regcache_write_pc (regcache, breakpoint_pc);
-
- do_cleanups (old_cleanups);
}
}
set_current_inferior (find_inferior_ptid (ecs->ptid));
set_current_program_space (current_inferior ()->pspace);
handle_vfork_child_exec_or_exit (0);
- target_terminal_ours (); /* Must do this before mourn anyway. */
+ target_terminal::ours (); /* Must do this before mourn anyway. */
/* Clearing any previous state of convenience variables. */
clear_exit_convenience_vars ();
if (debug_infrun)
fprintf_unfiltered (gdb_stdlog, "infrun: TARGET_WAITKIND_EXECD\n");
+ /* Note we can't read registers yet (the stop_pc), because we
+ don't yet know the inferior's post-exec architecture.
+ 'stop_pc' is explicitly read below instead. */
if (!ptid_equal (ecs->ptid, inferior_ptid))
- context_switch (ecs->ptid);
-
- stop_pc = regcache_read_pc (get_thread_regcache (ecs->ptid));
+ switch_to_thread_no_regs (ecs->event_thread);
/* Do whatever is necessary to the parent branch of the vfork. */
handle_vfork_child_exec_or_exit (1);
stop. */
follow_exec (inferior_ptid, ecs->ws.value.execd_pathname);
+ stop_pc = regcache_read_pc (get_thread_regcache (ecs->ptid));
+
/* In follow_exec we may have deleted the original thread and
created a new one. Make sure that the event thread is the
execd thread for that case (this is a nop otherwise). */
decr_pc = gdbarch_decr_pc_after_break (gdbarch);
if (decr_pc != 0)
{
- struct cleanup *old_cleanups = make_cleanup (null_cleanup, NULL);
+ gdb::optional<scoped_restore_tmpl<int>>
+ restore_operation_disable;
if (record_full_is_used ())
- record_full_gdb_operation_disable_set ();
+ restore_operation_disable.emplace
+ (record_full_gdb_operation_disable_set ());
regcache_write_pc (regcache, stop_pc + decr_pc);
-
- do_cleanups (old_cleanups);
}
}
else
if (signal_print[ecs->event_thread->suspend.stop_signal])
{
/* The signal table tells us to print about this signal. */
- target_terminal_ours_for_output ();
+ target_terminal::ours_for_output ();
observer_notify_signal_received (ecs->event_thread->suspend.stop_signal);
- target_terminal_inferior ();
+ target_terminal::inferior ();
}
/* Clear the signal if it should not be passed. */
{
/* Set up a step-resume breakpoint at the address
indicated by SKIP_SOLIB_RESOLVER. */
- struct symtab_and_line sr_sal;
-
- init_sal (&sr_sal);
+ symtab_and_line sr_sal;
sr_sal.pc = pc_after_resolver;
sr_sal.pspace = get_frame_program_space (frame);
if (real_stop_pc)
{
/* And put the step-breakpoint there and go until there. */
- struct symtab_and_line sr_sal;
-
- init_sal (&sr_sal); /* initialize to zeroes */
+ symtab_and_line sr_sal;
sr_sal.pc = real_stop_pc;
sr_sal.section = find_pc_overlay (sr_sal.pc);
sr_sal.pspace = get_frame_program_space (frame);
to the caller. */
if (ecs->stop_func_start != stop_pc && ecs->stop_func_start != 0)
{
- struct symtab_and_line sr_sal;
-
/* Normal function call return (static or dynamic). */
- init_sal (&sr_sal);
+ symtab_and_line sr_sal;
sr_sal.pc = ecs->stop_func_start;
sr_sal.pspace = get_frame_program_space (frame);
insert_step_resume_breakpoint_at_sal (gdbarch,
if (real_stop_pc != 0 && in_solib_dynsym_resolve_code (real_stop_pc))
{
- struct symtab_and_line sr_sal;
-
- init_sal (&sr_sal);
+ symtab_and_line sr_sal;
sr_sal.pc = ecs->stop_func_start;
sr_sal.pspace = get_frame_program_space (frame);
{
/* Set a breakpoint at callee's start address.
From there we can step once and be back in the caller. */
- struct symtab_and_line sr_sal;
-
- init_sal (&sr_sal);
+ symtab_and_line sr_sal;
sr_sal.pc = ecs->stop_func_start;
sr_sal.pspace = get_frame_program_space (frame);
insert_step_resume_breakpoint_at_sal (gdbarch,
/* Stepped backward into the solib dynsym resolver.
Set a breakpoint at its start and continue, then
one more step will take us out. */
- struct symtab_and_line sr_sal;
-
- init_sal (&sr_sal);
+ symtab_and_line sr_sal;
sr_sal.pc = ecs->stop_func_start;
sr_sal.pspace = get_frame_program_space (frame);
insert_step_resume_breakpoint_at_sal (gdbarch,
ecs->event_thread->control.step_frame_id)
&& inline_skipped_frames (ecs->ptid))
{
- struct symtab_and_line call_sal;
-
if (debug_infrun)
fprintf_unfiltered (gdb_stdlog,
"infrun: stepped into inlined function\n");
- find_frame_sal (get_current_frame (), &call_sal);
+ symtab_and_line call_sal = find_frame_sal (get_current_frame ());
if (ecs->event_thread->control.step_over_calls != STEP_OVER_ALL)
{
handle_step_into_function (struct gdbarch *gdbarch,
struct execution_control_state *ecs)
{
- struct compunit_symtab *cust;
- struct symtab_and_line stop_func_sal, sr_sal;
-
fill_in_stop_func (gdbarch, ecs);
- cust = find_pc_compunit_symtab (stop_pc);
+ compunit_symtab *cust = find_pc_compunit_symtab (stop_pc);
if (cust != NULL && compunit_language (cust) != language_asm)
ecs->stop_func_start
= gdbarch_skip_prologue_noexcept (gdbarch, ecs->stop_func_start);
- stop_func_sal = find_pc_line (ecs->stop_func_start, 0);
+ symtab_and_line stop_func_sal = find_pc_line (ecs->stop_func_start, 0);
/* Use the step_resume_break to step until the end of the prologue,
even if that involves jumps (as it seems to on the vax under
4.2). */
else
{
/* Put the step-breakpoint there and go until there. */
- init_sal (&sr_sal); /* initialize to zeroes */
+ symtab_and_line sr_sal;
sr_sal.pc = ecs->stop_func_start;
sr_sal.section = find_pc_overlay (ecs->stop_func_start);
sr_sal.pspace = get_frame_program_space (get_current_frame ());
static void
insert_hp_step_resume_breakpoint_at_frame (struct frame_info *return_frame)
{
- struct symtab_and_line sr_sal;
- struct gdbarch *gdbarch;
-
gdb_assert (return_frame != NULL);
- init_sal (&sr_sal); /* initialize to zeros */
- gdbarch = get_frame_arch (return_frame);
+ struct gdbarch *gdbarch = get_frame_arch (return_frame);
+
+ symtab_and_line sr_sal;
sr_sal.pc = gdbarch_addr_bits_remove (gdbarch, get_frame_pc (return_frame));
sr_sal.section = find_pc_overlay (sr_sal.pc);
sr_sal.pspace = get_frame_program_space (return_frame);
static void
insert_step_resume_breakpoint_at_caller (struct frame_info *next_frame)
{
- struct symtab_and_line sr_sal;
- struct gdbarch *gdbarch;
-
/* We shouldn't have gotten here if we don't know where the call site
is. */
gdb_assert (frame_id_p (frame_unwind_caller_id (next_frame)));
- init_sal (&sr_sal); /* initialize to zeros */
+ struct gdbarch *gdbarch = frame_unwind_caller_arch (next_frame);
- gdbarch = frame_unwind_caller_arch (next_frame);
+ symtab_and_line sr_sal;
sr_sal.pc = gdbarch_addr_bits_remove (gdbarch,
frame_unwind_caller_pc (next_frame));
sr_sal.section = find_pc_overlay (sr_sal.pc);
{
if (remove_breakpoints ())
{
- target_terminal_ours_for_output ();
+ target_terminal::ours_for_output ();
printf_filtered (_("Cannot remove breakpoints because "
"program is no longer writable.\nFurther "
"execution is probably impossible.\n"));
{
SWITCH_THRU_ALL_UIS ()
{
- target_terminal_ours_for_output ();
+ target_terminal::ours_for_output ();
printf_filtered (_("[Switching to %s]\n"),
target_pid_to_str (inferior_ptid));
annotate_thread_changed ();
SWITCH_THRU_ALL_UIS ()
if (current_ui->prompt_state == PROMPT_BLOCKED)
{
- target_terminal_ours_for_output ();
+ target_terminal::ours_for_output ();
printf_filtered (_("No unwaited-for children left.\n"));
}
}
struct cleanup *old_chain
= make_cleanup (release_stop_context_cleanup, saved_context);
- catch_errors (hook_stop_stub, stop_command,
- "Error while running hook_stop:\n", RETURN_MASK_ALL);
+ TRY
+ {
+ execute_cmd_pre_hook (stop_command);
+ }
+ CATCH (ex, RETURN_MASK_ALL)
+ {
+ exception_fprintf (gdb_stderr, ex,
+ "Error while running hook_stop:\n");
+ }
+ END_CATCH
/* If the stop hook resumes the target, then there's no point in
trying to notify about the previous stop; its context is
return 0;
}
-
-static int
-hook_stop_stub (void *cmd)
-{
- execute_cmd_pre_hook ((struct cmd_list_element *) cmd);
- return (0);
-}
\f
int
signal_stop_state (int signo)
void
discard_infcall_suspend_state (struct infcall_suspend_state *inf_state)
{
- regcache_xfree (inf_state->registers);
+ delete inf_state->registers;
xfree (inf_state->siginfo_data);
xfree (inf_state);
}
return inf_status;
}
-static int
-restore_selected_frame (void *args)
+static void
+restore_selected_frame (const frame_id &fid)
{
- struct frame_id *fid = (struct frame_id *) args;
- struct frame_info *frame;
-
- frame = frame_find_by_id (*fid);
+ frame_info *frame = frame_find_by_id (fid);
/* If inf_status->selected_frame_id is NULL, there was no previously
selected frame. */
if (frame == NULL)
{
warning (_("Unable to restore previously selected frame."));
- return 0;
+ return;
}
select_frame (frame);
-
- return (1);
}
/* Restore inferior session state to INF_STATUS. */
if (target_has_stack)
{
- /* The point of catch_errors is that if the stack is clobbered,
+ /* The point of the try/catch is that if the stack is clobbered,
walking the stack might encounter a garbage pointer and
error() trying to dereference it. */
- if (catch_errors
- (restore_selected_frame, &inf_status->selected_frame_id,
- "Unable to restore previously selected frame:\n",
- RETURN_MASK_ERROR) == 0)
- /* Error in restoring the selected frame. Select the innermost
- frame. */
- select_frame (get_current_frame ());
+ TRY
+ {
+ restore_selected_frame (inf_status->selected_frame_id);
+ }
+ CATCH (ex, RETURN_MASK_ERROR)
+ {
+ exception_fprintf (gdb_stderr, ex,
+ "Unable to restore previously selected frame:\n");
+ /* Error in restoring the selected frame. Select the
+ innermost frame. */
+ select_frame (get_current_frame ());
+ }
+ END_CATCH
}
xfree (inf_status);
projects / deliverable / binutils-gdb.git / blobdiff