e2e4d78b22
Remove stale dummy frames. * breakpoint.c: Include dummy-frame.h. (longjmp_breakpoint_ops): New variable. (update_breakpoints_after_exec, breakpoint_init_inferior): Delete also bp_longjmp_call_dummy. (bpstat_what, bptype_string, print_one_breakpoint_location) (init_bp_location): Support bp_longjmp_call_dummy. (set_longjmp_breakpoint): Use longjmp_breakpoint_ops. Comment why. (set_longjmp_breakpoint_for_call_dummy) (check_longjmp_breakpoint_for_call_dummy, longjmp_bkpt_dtor): New functions. (initialize_breakpoint_ops): Initialize longjmp_breakpoint_ops. * breakpoint.h (enum bptype): New item bp_longjmp_call_dummy. Delete FIXME comment and extend the other comment for bp_call_dummy. (set_longjmp_breakpoint_for_call_dummy) (check_longjmp_breakpoint_for_call_dummy): New declarations. * dummy-frame.c: Include gdbthread.h. (pop_dummy_frame_bpt): New function. (pop_dummy_frame): Call pop_dummy_frame_bpt. (dummy_frame_discard): New function. (cleanup_dummy_frames): Update the comment about longjmps. * dummy-frame.h (dummy_frame_discard): New declaration. * gdbthread.h (struct thread_info): Extend initiating_frame comment. * infcall.c (call_function_by_hand): New variable longjmp_b. Call set_longjmp_breakpoint_for_call_dummy. Chain its breakpoints with BPT. * infrun.c (handle_inferior_event) <BPSTAT_WHAT_CLEAR_LONGJMP_RESUME>: Add case 4 comment. Call check_longjmp_breakpoint_for_call_dummy and keep_going if IS_LONGJMP and there is no other reason to stop. gdb/testsuite/ Remove stale dummy frames. * gdb.base/call-signal-resume.exp (maintenance print dummy-frames) (maintenance info breakpoints): New tests. * gdb.base/stale-infcall.c: New file. * gdb.base/stale-infcall.exp: New file.
63 lines
2.3 KiB
C
63 lines
2.3 KiB
C
/* Code dealing with dummy stack frames, for GDB, the GNU debugger.
|
|
|
|
Copyright (C) 2002, 2004, 2007-2012 Free Software Foundation, Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#if !defined (DUMMY_FRAME_H)
|
|
#define DUMMY_FRAME_H 1
|
|
|
|
#include "frame.h"
|
|
|
|
struct infcall_suspend_state;
|
|
struct frame_unwind;
|
|
|
|
/* Push the information needed to identify, and unwind from, a dummy
|
|
frame onto the dummy frame stack. */
|
|
|
|
/* NOTE: cagney/2004-08-02: This interface will eventually need to be
|
|
parameterized with the caller's thread - that will allow per-thread
|
|
dummy-frame stacks and, hence, per-thread inferior function
|
|
calls. */
|
|
|
|
/* NOTE: cagney/2004-08-02: In the case of ABIs using push_dummy_code
|
|
containing more than one instruction, this interface many need to
|
|
be expanded so that it knowns the lower/upper extent of the dummy
|
|
frame's code. */
|
|
|
|
extern void dummy_frame_push (struct infcall_suspend_state *caller_state,
|
|
const struct frame_id *dummy_id);
|
|
|
|
/* Pop the dummy frame DUMMY_ID, restoring program state to that before the
|
|
frame was created.
|
|
On return reinit_frame_cache has been called.
|
|
If the frame isn't found, flag an internal error.
|
|
|
|
NOTE: This can only pop the one frame, even if it is in the middle of the
|
|
stack, because the other frames may be for different threads, and there's
|
|
currently no way to tell which stack frame is for which thread. */
|
|
|
|
extern void dummy_frame_pop (struct frame_id dummy_id);
|
|
|
|
extern void dummy_frame_discard (struct frame_id dummy_id);
|
|
|
|
/* If the PC falls in a dummy frame, return a dummy frame
|
|
unwinder. */
|
|
|
|
extern const struct frame_unwind dummy_frame_unwind;
|
|
|
|
#endif /* !defined (DUMMY_FRAME_H) */
|