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* infrun.c (struct execution_control_state): New member
	stop_func_filled_in.
	(clear_stop_func, fill_in_stop_func): New functions.
	(handle_inferior_event): Call clear_stop_func rather than
	manipulating the execution control state directly.
	Call fill_in_stop_func lazily as required rather than
	directly calling find_pc_partial_function in all cases.
This commit is contained in:
Gary Benson 2011-07-19 12:24:34 +00:00
parent c8057f624e
commit 7e324e482f
2 changed files with 48 additions and 9 deletions
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10
gdb/ChangeLog
View File

@ -1,3 +1,13 @@
2011-07-19 Gary Benson <gbenson@redhat.com>
* infrun.c (struct execution_control_state): New member
stop_func_filled_in.
(clear_stop_func, fill_in_stop_func): New functions.
(handle_inferior_event): Call clear_stop_func rather than
manipulating the execution control state directly.
Call fill_in_stop_func lazily as required rather than
directly calling find_pc_partial_function in all cases.
2011-07-18 Tom Tromey <tromey@redhat.com>
* dwarf2read.c (read_subrange_type): Use attr_form_is_block when

47
gdb/infrun.c
View File

@ -2326,6 +2326,7 @@ struct execution_control_state
struct target_waitstatus ws;
int random_signal;
int stop_func_filled_in;
CORE_ADDR stop_func_start;
CORE_ADDR stop_func_end;
char *stop_func_name;
@ -3080,6 +3081,36 @@ handle_syscall_event (struct execution_control_state *ecs)
return 1;
}
/* Clear the supplied execution_control_state's stop_func_* fields. */
static void
clear_stop_func (struct execution_control_state *ecs)
{
ecs->stop_func_filled_in = 0;
ecs->stop_func_start = 0;
ecs->stop_func_end = 0;
ecs->stop_func_name = NULL;
}
/* Lazily fill in the execution_control_state's stop_func_* fields. */
static void
fill_in_stop_func (struct gdbarch *gdbarch,
struct execution_control_state *ecs)
{
if (!ecs->stop_func_filled_in)
{
/* Don't care about return value; stop_func_start and stop_func_name
will both be 0 if it doesn't work. */
find_pc_partial_function (stop_pc, &ecs->stop_func_name,
&ecs->stop_func_start, &ecs->stop_func_end);
ecs->stop_func_start
+= gdbarch_deprecated_function_start_offset (gdbarch);
ecs->stop_func_filled_in = 1;
}
}
/* Given an execution control state that has been freshly filled in
by an event from the inferior, figure out what it means and take
appropriate action. */
@ -3925,15 +3956,7 @@ handle_inferior_event (struct execution_control_state *ecs)
return;
}
ecs->stop_func_start = 0;
ecs->stop_func_end = 0;
ecs->stop_func_name = 0;
/* Don't care about return value; stop_func_start and stop_func_name
will both be 0 if it doesn't work. */
find_pc_partial_function (stop_pc, &ecs->stop_func_name,
&ecs->stop_func_start, &ecs->stop_func_end);
ecs->stop_func_start
+= gdbarch_deprecated_function_start_offset (gdbarch);
clear_stop_func (ecs);
ecs->event_thread->stepping_over_breakpoint = 0;
bpstat_clear (&ecs->event_thread->control.stop_bpstat);
ecs->event_thread->control.stop_step = 0;
@ -4377,6 +4400,7 @@ process_event_stop_test:
keep_going (ecs);
return;
}
fill_in_stop_func (gdbarch, ecs);
if (stop_pc == ecs->stop_func_start
&& execution_direction == EXEC_REVERSE)
{
@ -4568,6 +4592,7 @@ process_event_stop_test:
a dangling pointer. */
frame = get_current_frame ();
gdbarch = get_frame_arch (frame);
fill_in_stop_func (gdbarch, ecs);
/* If stepping through a line, keep going if still within it.
@ -5128,6 +5153,8 @@ handle_step_into_function (struct gdbarch *gdbarch,
struct symtab *s;
struct symtab_and_line stop_func_sal, sr_sal;
fill_in_stop_func (gdbarch, ecs);
s = find_pc_symtab (stop_pc);
if (s && s->language != language_asm)
ecs->stop_func_start = gdbarch_skip_prologue (gdbarch,
@ -5207,6 +5234,8 @@ handle_step_into_function_backward (struct gdbarch *gdbarch,
struct symtab *s;
struct symtab_and_line stop_func_sal;
fill_in_stop_func (gdbarch, ecs);
s = find_pc_symtab (stop_pc);
if (s && s->language != language_asm)
ecs->stop_func_start = gdbarch_skip_prologue (gdbarch,