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2005-01-24  Andrew Cagney  <cagney@gnu.org>

	* infrun.c (handle_inferior_event): Handle back-to-back and nested
	signals where the step_resume_breakpoint may have already been
	inserted.

Index: testsuite/ChangeLog
2005-01-24  Andrew Cagney  <cagney@gnu.org>

	* gdb.base/sigrepeat.exp, gdb.base/sigrepeat.c: New test.
This commit is contained in:
Andrew Cagney
2005-01-24 22:00:59 +00:00
parent 45181ed16d
commit 9d799f85e0
5 changed files with 194 additions and 5 deletions
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23
gdb/infrun.c
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@@ -1933,12 +1933,16 @@ process_event_stop_test:
breakpoint. */
insert_step_resume_breakpoint_at_frame (get_current_frame ());
ecs->step_after_step_resume_breakpoint = 1;
keep_going (ecs);
return;
}
else if (step_range_end != 0
&& stop_signal != TARGET_SIGNAL_0
&& stop_pc >= step_range_start && stop_pc < step_range_end
&& frame_id_eq (get_frame_id (get_current_frame ()),
step_frame_id))
if (step_range_end != 0
&& stop_signal != TARGET_SIGNAL_0
&& stop_pc >= step_range_start && stop_pc < step_range_end
&& frame_id_eq (get_frame_id (get_current_frame ()),
step_frame_id)
&& step_resume_breakpoint == NULL)
{
/* The inferior is about to take a signal that will take it
out of the single step range. Set a breakpoint at the
@@ -1950,7 +1954,16 @@ process_event_stop_test:
while in the single-step range. Nested signals aren't a
problem as they eventually all return. */
insert_step_resume_breakpoint_at_frame (get_current_frame ());
keep_going (ecs);
return;
}
/* Note: step_resume_breakpoint may be non-NULL. This occures
when either there's a nested signal, or when there's a
pending signal enabled just as the signal handler returns
(leaving the inferior at the step-resume-breakpoint without
actually executing it). Either way continue until the
breakpoint is really hit. */
keep_going (ecs);
return;
}