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
53
54
55
56
57
|
/* Error handling for runtime dynamic linker.
Copyright (C) 1995 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <stddef.h>
#include <link.h>
#include <setjmp.h>
static jmp_buf catch_env;
static const char *signalled_errstring, *signalled_objname;
void
_dl_signal_error (int errcode,
const char *objname,
const char *errstring)
{
signalled_errstring = errstring ?: "DYNAMIC LINKER BUG!!!";
signalled_objname = objname;
longjmp (catch_env, errcode ?: -1);
}
int
_dl_catch_error (const char **errstring,
const char **objname,
void (*operate) (void))
{
int errcode;
signalled_errstring = signalled_objname = NULL;
errcode = setjmp (catch_env);
if (errcode == 0)
{
(*operate) ();
*errstring = *objname = NULL;
return 0;
}
/* We get here only if we longjmp'd out of OPERATE. */
*errstring = signalled_errstring;
*objname = signalled_objname;
return errcode == -1 ? 0 : errcode;
}
|
GitWeb
