* infrun.c: Backout the previous change.
This commit is contained in:
Joel Brobecker
parent
c2df3ea5c0
commit
ef52e463d0
2 changed files with 85 additions and 91 deletions
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@ -1,3 +1,7 @@
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2004-01-03 J. Brobecker <brobecker@gnat.com>
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* infrun.c: Back out the previous change.
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2004-01-03 Mark Kettenis <kettenis@gnu.org>
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* NEWS: Mention revised SPARC target. Add sparc-*-lynxos* and
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172
gdb/infrun.c
172
gdb/infrun.c
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@ -987,8 +987,6 @@ struct execution_control_state
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void init_execution_control_state (struct execution_control_state *ecs);
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static void handle_step_into_function (struct execution_control_state *ecs,
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CORE_ADDR real_stop_pc);
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void handle_inferior_event (struct execution_control_state *ecs);
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static void check_sigtramp2 (struct execution_control_state *ecs);
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@ -1238,94 +1236,6 @@ pc_in_sigtramp (CORE_ADDR pc)
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return PC_IN_SIGTRAMP (pc, name);
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}
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/* Handle the inferior event in the cases when we just stepped
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into a function. */
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static void
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handle_step_into_function (struct execution_control_state *ecs,
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CORE_ADDR real_stop_pc)
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{
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if ((step_over_calls == STEP_OVER_NONE)
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|| ((step_range_end == 1)
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&& in_prologue (prev_pc, ecs->stop_func_start)))
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{
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/* I presume that step_over_calls is only 0 when we're
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supposed to be stepping at the assembly language level
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("stepi"). Just stop. */
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/* Also, maybe we just did a "nexti" inside a prolog,
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so we thought it was a subroutine call but it was not.
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Stop as well. FENN */
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stop_step = 1;
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print_stop_reason (END_STEPPING_RANGE, 0);
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stop_stepping (ecs);
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return;
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}
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if (step_over_calls == STEP_OVER_ALL || IGNORE_HELPER_CALL (stop_pc))
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{
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/* We're doing a "next". */
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if (pc_in_sigtramp (stop_pc)
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&& frame_id_inner (step_frame_id,
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frame_id_build (read_sp (), 0)))
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/* We stepped out of a signal handler, and into its
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calling trampoline. This is misdetected as a
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subroutine call, but stepping over the signal
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trampoline isn't such a bad idea. In order to do that,
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we have to ignore the value in step_frame_id, since
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that doesn't represent the frame that'll reach when we
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return from the signal trampoline. Otherwise we'll
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probably continue to the end of the program. */
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step_frame_id = null_frame_id;
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step_over_function (ecs);
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keep_going (ecs);
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return;
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}
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/* If we are in a function call trampoline (a stub between
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the calling routine and the real function), locate the real
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function. That's what tells us (a) whether we want to step
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into it at all, and (b) what prologue we want to run to
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the end of, if we do step into it. */
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real_stop_pc = skip_language_trampoline (stop_pc);
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if (real_stop_pc == 0)
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real_stop_pc = SKIP_TRAMPOLINE_CODE (stop_pc);
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if (real_stop_pc != 0)
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ecs->stop_func_start = real_stop_pc;
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/* If we have line number information for the function we
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are thinking of stepping into, step into it.
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If there are several symtabs at that PC (e.g. with include
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files), just want to know whether *any* of them have line
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numbers. find_pc_line handles this. */
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{
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struct symtab_and_line tmp_sal;
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tmp_sal = find_pc_line (ecs->stop_func_start, 0);
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if (tmp_sal.line != 0)
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{
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step_into_function (ecs);
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return;
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}
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}
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/* If we have no line number and the step-stop-if-no-debug
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is set, we stop the step so that the user has a chance to
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switch in assembly mode. */
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if (step_over_calls == STEP_OVER_UNDEBUGGABLE && step_stop_if_no_debug)
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{
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stop_step = 1;
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print_stop_reason (END_STEPPING_RANGE, 0);
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stop_stepping (ecs);
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return;
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}
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step_over_function (ecs);
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keep_going (ecs);
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return;
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}
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/* Given an execution control state that has been freshly filled in
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by an event from the inferior, figure out what it means and take
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@ -2569,8 +2479,88 @@ process_event_stop_test:
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|| ecs->stop_func_name == 0)
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{
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/* It's a subroutine call. */
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handle_step_into_function (ecs, real_stop_pc);
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if ((step_over_calls == STEP_OVER_NONE)
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|| ((step_range_end == 1)
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&& in_prologue (prev_pc, ecs->stop_func_start)))
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{
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/* I presume that step_over_calls is only 0 when we're
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supposed to be stepping at the assembly language level
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("stepi"). Just stop. */
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/* Also, maybe we just did a "nexti" inside a prolog,
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so we thought it was a subroutine call but it was not.
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Stop as well. FENN */
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stop_step = 1;
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print_stop_reason (END_STEPPING_RANGE, 0);
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stop_stepping (ecs);
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return;
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}
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if (step_over_calls == STEP_OVER_ALL || IGNORE_HELPER_CALL (stop_pc))
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{
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/* We're doing a "next". */
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if (pc_in_sigtramp (stop_pc)
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&& frame_id_inner (step_frame_id,
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frame_id_build (read_sp (), 0)))
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/* We stepped out of a signal handler, and into its
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calling trampoline. This is misdetected as a
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subroutine call, but stepping over the signal
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trampoline isn't such a bad idea. In order to do that,
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we have to ignore the value in step_frame_id, since
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that doesn't represent the frame that'll reach when we
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return from the signal trampoline. Otherwise we'll
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probably continue to the end of the program. */
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step_frame_id = null_frame_id;
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step_over_function (ecs);
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keep_going (ecs);
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return;
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}
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/* If we are in a function call trampoline (a stub between
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the calling routine and the real function), locate the real
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function. That's what tells us (a) whether we want to step
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into it at all, and (b) what prologue we want to run to
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the end of, if we do step into it. */
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real_stop_pc = skip_language_trampoline (stop_pc);
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if (real_stop_pc == 0)
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real_stop_pc = SKIP_TRAMPOLINE_CODE (stop_pc);
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if (real_stop_pc != 0)
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ecs->stop_func_start = real_stop_pc;
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/* If we have line number information for the function we
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are thinking of stepping into, step into it.
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If there are several symtabs at that PC (e.g. with include
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files), just want to know whether *any* of them have line
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numbers. find_pc_line handles this. */
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{
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struct symtab_and_line tmp_sal;
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tmp_sal = find_pc_line (ecs->stop_func_start, 0);
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if (tmp_sal.line != 0)
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{
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step_into_function (ecs);
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return;
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}
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}
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/* If we have no line number and the step-stop-if-no-debug
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is set, we stop the step so that the user has a chance to
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switch in assembly mode. */
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if (step_over_calls == STEP_OVER_UNDEBUGGABLE && step_stop_if_no_debug)
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{
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stop_step = 1;
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print_stop_reason (END_STEPPING_RANGE, 0);
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stop_stepping (ecs);
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return;
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}
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step_over_function (ecs);
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keep_going (ecs);
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return;
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}
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/* We've wandered out of the step range. */
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