Line data Source code
1 : /* Error handling in libasm.
2 : Copyright (C) 2002, 2004, 2005, 2009 Red Hat, Inc.
3 : This file is part of elfutils.
4 : Written by Ulrich Drepper <drepper@redhat.com>, 2002.
5 :
6 : This file is free software; you can redistribute it and/or modify
7 : it under the terms of either
8 :
9 : * the GNU Lesser General Public License as published by the Free
10 : Software Foundation; either version 3 of the License, or (at
11 : your option) any later version
12 :
13 : or
14 :
15 : * the GNU General Public License as published by the Free
16 : Software Foundation; either version 2 of the License, or (at
17 : your option) any later version
18 :
19 : or both in parallel, as here.
20 :
21 : elfutils is distributed in the hope that it will be useful, but
22 : WITHOUT ANY WARRANTY; without even the implied warranty of
23 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
24 : General Public License for more details.
25 :
26 : You should have received copies of the GNU General Public License and
27 : the GNU Lesser General Public License along with this program. If
28 : not, see <http://www.gnu.org/licenses/>. */
29 :
30 : #ifdef HAVE_CONFIG_H
31 : # include <config.h>
32 : #endif
33 :
34 : #include <libintl.h>
35 : #include <stdbool.h>
36 : #include <stdlib.h>
37 :
38 : #include "libasmP.h"
39 :
40 :
41 : /* This is the key for the thread specific memory. */
42 : static __thread int global_error;
43 :
44 :
45 : int
46 0 : asm_errno (void)
47 : {
48 0 : int result = global_error;
49 0 : global_error = ASM_E_NOERROR;
50 0 : return result;
51 : }
52 :
53 :
54 : void
55 : internal_function
56 0 : __libasm_seterrno (int value)
57 : {
58 0 : global_error = value;
59 0 : }
60 :
61 :
62 : /* Return the appropriate message for the error. */
63 : static const char *msgs[ASM_E_NUM] =
64 : {
65 : [ASM_E_NOERROR] = N_("no error"),
66 : [ASM_E_NOMEM] = N_("out of memory"),
67 : [ASM_E_CANNOT_CREATE] = N_("cannot create output file"),
68 : [ASM_E_INVALID] = N_("invalid parameter"),
69 : [ASM_E_CANNOT_CHMOD] = N_("cannot change mode of output file"),
70 : [ASM_E_CANNOT_RENAME] = N_("cannot rename output file"),
71 : [ASM_E_DUPLSYM] = N_("duplicate symbol"),
72 : [ASM_E_TYPE] = N_("invalid section type for operation"),
73 : [ASM_E_IOERROR] = N_("error during output of data"),
74 : [ASM_E_ENOSUP] = N_("no backend support available"),
75 : };
76 :
77 : const char *
78 0 : asm_errmsg (int error)
79 : {
80 0 : int last_error = global_error;
81 :
82 0 : if (error < -1)
83 0 : return _("unknown error");
84 0 : if (error == 0 && last_error == 0)
85 : /* No error. */
86 : return NULL;
87 :
88 0 : if (error != -1)
89 0 : last_error = error;
90 :
91 0 : if (last_error == ASM_E_LIBELF)
92 0 : return elf_errmsg (-1);
93 :
94 0 : return _(msgs[last_error]);
95 : }
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