Line data Source code
1 : /* Return machine flag names.
2 : Copyright (C) 2001, 2002 Red Hat, Inc.
3 : This file is part of elfutils.
4 : Written by Ulrich Drepper <drepper@redhat.com>, 2001.
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 <stdio.h>
35 : #include <string.h>
36 : #include <system.h>
37 : #include <libeblP.h>
38 :
39 :
40 : const char *
41 32 : ebl_machine_flag_name (Ebl *ebl, Elf64_Word flags, char *buf, size_t len)
42 : {
43 : const char *res;
44 :
45 32 : if (flags == 0)
46 : res = "";
47 : else
48 : {
49 : char *cp = buf;
50 : int first = 1;
51 : const char *machstr;
52 : size_t machstrlen;
53 :
54 : do
55 : {
56 : if (! first)
57 : {
58 0 : if (cp + 1 >= buf + len)
59 : break;
60 0 : *cp++ = ',';
61 : }
62 :
63 2 : machstr = ebl != NULL ? ebl->machine_flag_name (&flags) : NULL;
64 2 : if (machstr == NULL)
65 : {
66 : /* No more known flag. */
67 2 : snprintf (cp, buf + len - cp, "%#x", flags);
68 : break;
69 : }
70 :
71 0 : machstrlen = strlen (machstr) + 1;
72 0 : if ((size_t) (buf + len - cp) < machstrlen)
73 : {
74 0 : *((char *) mempcpy (cp, machstr, buf + len - cp - 1)) = '\0';
75 0 : break;
76 : }
77 :
78 0 : cp = mempcpy (cp, machstr, machstrlen);
79 :
80 0 : first = 0;
81 : }
82 0 : while (flags != 0);
83 :
84 : res = buf;
85 : }
86 :
87 32 : return res;
88 : }
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