blob: 3638bbee7f1bc85414de1e42e8be98a0f16d8cc8 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
/* __frame_state_for unwinder helper function wrapper.
Copyright (C) 2001, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2001.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <dlfcn.h>
#include <stdlib.h>
#define STATIC static
#define __frame_state_for fallback_frame_state_for
#include <unwind-dw2.c>
#undef __frame_state_for
#include <libgcc_s.h>
typedef struct frame_state * (*framesf)(void *pc, struct frame_state *);
struct frame_state *__frame_state_for (void *pc,
struct frame_state *frame_state);
struct frame_state *
__frame_state_for (void *pc, struct frame_state *frame_state)
{
static framesf frame_state_for;
if (frame_state_for == NULL)
{
void *handle = __libc_dlopen (LIBGCC_S_SO);
if (handle == NULL
|| (frame_state_for
= (framesf) __libc_dlsym (handle, "__frame_state_for")) == NULL)
#ifndef __USING_SJLJ_EXCEPTIONS__
frame_state_for = fallback_frame_state_for;
#else
frame_state_for = abort;
#endif
}
return frame_state_for (pc, frame_state);
}
|
