Line data Source code
1 : /* Find EH CFI for a module in libdwfl.
2 : Copyright (C) 2009-2010 Red Hat, Inc.
3 : This file is part of elfutils.
4 :
5 : This file is free software; you can redistribute it and/or modify
6 : it under the terms of either
7 :
8 : * the GNU Lesser General Public License as published by the Free
9 : Software Foundation; either version 3 of the License, or (at
10 : your option) any later version
11 :
12 : or
13 :
14 : * the GNU General Public License as published by the Free
15 : Software Foundation; either version 2 of the License, or (at
16 : your option) any later version
17 :
18 : or both in parallel, as here.
19 :
20 : elfutils is distributed in the hope that it will be useful, but
21 : WITHOUT ANY WARRANTY; without even the implied warranty of
22 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 : General Public License for more details.
24 :
25 : You should have received copies of the GNU General Public License and
26 : the GNU Lesser General Public License along with this program. If
27 : not, see <http://www.gnu.org/licenses/>. */
28 :
29 : #ifdef HAVE_CONFIG_H
30 : # include <config.h>
31 : #endif
32 :
33 : #include "libdwflP.h"
34 : #include "../libdw/cfi.h"
35 :
36 : Dwarf_CFI *
37 2027 : dwfl_module_eh_cfi (Dwfl_Module *mod, Dwarf_Addr *bias)
38 : {
39 2027 : if (mod == NULL)
40 : return NULL;
41 :
42 2027 : if (mod->eh_cfi != NULL)
43 : {
44 1923 : *bias = dwfl_adjusted_address (mod, 0);
45 1923 : return mod->eh_cfi;
46 : }
47 :
48 104 : __libdwfl_getelf (mod);
49 104 : if (mod->elferr != DWFL_E_NOERROR)
50 : {
51 10 : __libdwfl_seterrno (mod->elferr);
52 10 : return NULL;
53 : }
54 :
55 94 : *bias = dwfl_adjusted_address (mod, 0);
56 94 : return __libdwfl_set_cfi (mod, &mod->eh_cfi,
57 : INTUSE(dwarf_getcfi_elf) (mod->main.elf));
58 : }
59 : INTDEF (dwfl_module_eh_cfi)
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