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77008252 | 1 | /* Object size checking support macros. |
a5544970 | 2 | Copyright (C) 2004-2019 Free Software Foundation, Inc. |
77008252 JJ |
3 | |
4 | This file is part of GCC. | |
5 | ||
6 | GCC is free software; you can redistribute it and/or modify it under | |
7 | the terms of the GNU General Public License as published by the Free | |
748086b7 | 8 | Software Foundation; either version 3, or (at your option) any later |
77008252 JJ |
9 | version. |
10 | ||
11 | In addition to the permissions in the GNU General Public License, the | |
12 | Free Software Foundation gives you unlimited permission to link the | |
13 | compiled version of this file into combinations with other programs, | |
14 | and to distribute those combinations without any restriction coming | |
15 | from the use of this file. (The General Public License restrictions | |
16 | do apply in other respects; for example, they cover modification of | |
17 | the file, and distribution when not linked into a combine | |
18 | executable.) | |
19 | ||
20 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
21 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
22 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
23 | for more details. | |
24 | ||
748086b7 JJ |
25 | Under Section 7 of GPL version 3, you are granted additional |
26 | permissions described in the GCC Runtime Library Exception, version | |
27 | 3.1, as published by the Free Software Foundation. | |
28 | ||
29 | You should have received a copy of the GNU General Public License and | |
30 | a copy of the GCC Runtime Library Exception along with this program; | |
31 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
32 | <http://www.gnu.org/licenses/>. */ | |
77008252 | 33 | |
77008252 JJ |
34 | |
35 | #ifndef _SSP_H | |
36 | #define _SSP_H 1 | |
37 | ||
38 | #if _FORTIFY_SOURCE > 0 && __OPTIMIZE__ > 0 \ | |
39 | && defined __GNUC__ \ | |
40 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)) \ | |
41 | && !defined __cplusplus | |
42 | # if _FORTIFY_SOURCE == 1 | |
43 | # define __SSP_FORTIFY_LEVEL 1 | |
44 | # elif _FORTIFY_SOURCE > 1 | |
45 | # define __SSP_FORTIFY_LEVEL 2 | |
46 | # endif | |
47 | #endif | |
48 | ||
49 | #if __SSP_FORTIFY_LEVEL > 0 | |
50 | # include <stddef.h> | |
51 | # define __ssp_bos(ptr) __builtin_object_size (ptr, __SSP_FORTIFY_LEVEL > 1) | |
52 | # define __ssp_bos0(ptr) __builtin_object_size (ptr, 0) | |
53 | ||
54 | # define __SSP_REDIRECT(name, proto, alias) \ | |
55 | name proto __asm__ (__SSP_ASMNAME (#alias)) | |
56 | # define __SSP_ASMNAME(cname) __SSP_ASMNAME2 (__USER_LABEL_PREFIX__, cname) | |
57 | # define __SSP_ASMNAME2(prefix, cname) __SSP_ASMNAME3 (prefix) cname | |
58 | # define __SSP_ASMNAME3(prefix) #prefix | |
59 | ||
60 | # @ssp_have_usable_vsnprintf@ __SSP_HAVE_VSNPRINTF | |
61 | ||
62 | extern void __chk_fail (void) __attribute__((__noreturn__)); | |
63 | #endif | |
64 | ||
65 | #endif /* _SSP_H */ |