Branch data 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 <stdbool.h>
35 : : #include <stdlib.h>
36 : :
37 : : #include "libasmP.h"
38 : :
39 : :
40 : : /* This is the key for the thread specific memory. */
41 : : static __thread int global_error;
42 : :
43 : :
44 : : int
45 : 0 : asm_errno (void)
46 : : {
47 : 0 : int result = global_error;
48 : 0 : global_error = ASM_E_NOERROR;
49 : 0 : return result;
50 : : }
51 : :
52 : :
53 : : void
54 : : internal_function
55 : 0 : __libasm_seterrno (int value)
56 : : {
57 : 0 : global_error = value;
58 : 0 : }
59 : :
60 : :
61 : : /* Return the appropriate message for the error. */
62 : : static const char *msgs[ASM_E_NUM] =
63 : : {
64 : : [ASM_E_NOERROR] = N_("no error"),
65 : : [ASM_E_NOMEM] = N_("out of memory"),
66 : : [ASM_E_CANNOT_CREATE] = N_("cannot create output file"),
67 : : [ASM_E_INVALID] = N_("invalid parameter"),
68 : : [ASM_E_CANNOT_CHMOD] = N_("cannot change mode of output file"),
69 : : [ASM_E_CANNOT_RENAME] = N_("cannot rename output file"),
70 : : [ASM_E_DUPLSYM] = N_("duplicate symbol"),
71 : : [ASM_E_TYPE] = N_("invalid section type for operation"),
72 : : [ASM_E_IOERROR] = N_("error during output of data"),
73 : : [ASM_E_ENOSUP] = N_("no backend support available"),
74 : : };
75 : :
76 : : const char *
77 : 0 : asm_errmsg (int error)
78 : : {
79 : 0 : int last_error = global_error;
80 : :
81 [ # # ]: 0 : if (error < -1)
82 : 0 : return _("unknown error");
83 [ # # # # ]: 0 : if (error == 0 && last_error == 0)
84 : : /* No error. */
85 : 0 : return NULL;
86 : :
87 [ # # ]: 0 : if (error != -1)
88 : 0 : last_error = error;
89 : :
90 [ # # ]: 0 : if (last_error == ASM_E_LIBELF)
91 : 0 : return elf_errmsg (-1);
92 : :
93 : 0 : return _(msgs[last_error]);
94 : : }
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