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d66e34cd RM |
1 | /* Error handling for runtime dynamic linker. |
2 | Copyright (C) 1995 Free Software Foundation, Inc. | |
3 | This file is part of the GNU C Library. | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Library General Public License as | |
7 | published by the Free Software Foundation; either version 2 of the | |
8 | License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Library General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Library General Public | |
16 | License along with the GNU C Library; see the file COPYING.LIB. If | |
17 | not, write to the Free Software Foundation, Inc., 675 Mass Ave, | |
18 | Cambridge, MA 02139, USA. */ | |
19 | ||
20 | #include <stddef.h> | |
21 | #include <link.h> | |
22 | #include <setjmp.h> | |
23 | ||
24 | static jmp_buf catch_env; | |
421f82e5 | 25 | static const char *signalled_errstring, *signalled_objname; |
d66e34cd RM |
26 | |
27 | void | |
421f82e5 RM |
28 | _dl_signal_error (int errcode, |
29 | const char *objname, | |
30 | const char *errstring) | |
d66e34cd RM |
31 | { |
32 | signalled_errstring = errstring ?: "DYNAMIC LINKER BUG!!!"; | |
33 | longjmp (catch_env, errcode ?: -1); | |
34 | } | |
35 | ||
36 | int | |
421f82e5 RM |
37 | _dl_catch_error (const char **errstring, |
38 | const char **objname, | |
39 | void (*operate) (void)) | |
d66e34cd RM |
40 | { |
41 | int errcode; | |
42 | ||
421f82e5 | 43 | signalled_errstring = signalled_objname = NULL; |
d66e34cd | 44 | errcode = setjmp (catch_env); |
e4448b6f | 45 | (*operate) (); |
d66e34cd | 46 | *errstring = signalled_errstring; |
421f82e5 | 47 | *objname = signalled_objname; |
d66e34cd RM |
48 | return *errstring ? errcode : 0; |
49 | } |