Line data Source code
1 : /* Manipulate ELF program header flags.
2 : Copyright (C) 1999, 2000, 2001, 2002, 2015 Red Hat, Inc.
3 : This file is part of elfutils.
4 : Written by Ulrich Drepper <drepper@redhat.com>, 1999.
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 <libelf.h>
35 : #include <stddef.h>
36 :
37 : #include "libelfP.h"
38 :
39 :
40 : unsigned int
41 4 : elf_flagphdr (Elf *elf, Elf_Cmd cmd, unsigned int flags)
42 : {
43 : unsigned int result;
44 :
45 4 : if (elf == NULL)
46 : return 0;
47 :
48 4 : if (unlikely (elf->kind != ELF_K_ELF))
49 : {
50 0 : __libelf_seterrno (ELF_E_INVALID_HANDLE);
51 0 : return 0;
52 : }
53 :
54 4 : if (likely (cmd == ELF_C_SET))
55 4 : result = (elf->state.elf.phdr_flags |= (flags & ELF_F_DIRTY));
56 0 : else if (likely (cmd == ELF_C_CLR))
57 0 : result = (elf->state.elf.phdr_flags &= ~(flags & ELF_F_DIRTY));
58 : else
59 : {
60 0 : __libelf_seterrno (ELF_E_INVALID_COMMAND);
61 0 : return 0;
62 : }
63 :
64 : return result;
65 : }
|