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77008252 JJ |
1 | /* Object size checking support macros. |
2 | Copyright (C) 2004, 2005 Free Software Foundation, Inc. | |
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 | |
8 | Software Foundation; either version 2, or (at your option) any later | |
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 | ||
25 | You should have received a copy of the GNU General Public License | |
26 | along with GCC; see the file COPYING. If not, write to the Free | |
cf398b1e KC |
27 | Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA |
28 | 02110-1301, USA. */ | |
77008252 JJ |
29 | |
30 | /* As a special exception, if you link this library with files compiled with | |
31 | GCC to produce an executable, this does not cause the resulting executable | |
32 | to be covered by the GNU General Public License. This exception does not | |
33 | however invalidate any other reasons why the executable file might be | |
34 | covered by the GNU General Public License. */ | |
35 | ||
36 | #ifndef _SSP_H | |
37 | #define _SSP_H 1 | |
38 | ||
39 | #if _FORTIFY_SOURCE > 0 && __OPTIMIZE__ > 0 \ | |
40 | && defined __GNUC__ \ | |
41 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)) \ | |
42 | && !defined __cplusplus | |
43 | # if _FORTIFY_SOURCE == 1 | |
44 | # define __SSP_FORTIFY_LEVEL 1 | |
45 | # elif _FORTIFY_SOURCE > 1 | |
46 | # define __SSP_FORTIFY_LEVEL 2 | |
47 | # endif | |
48 | #endif | |
49 | ||
50 | #if __SSP_FORTIFY_LEVEL > 0 | |
51 | # include <stddef.h> | |
52 | # define __ssp_bos(ptr) __builtin_object_size (ptr, __SSP_FORTIFY_LEVEL > 1) | |
53 | # define __ssp_bos0(ptr) __builtin_object_size (ptr, 0) | |
54 | ||
55 | # define __SSP_REDIRECT(name, proto, alias) \ | |
56 | name proto __asm__ (__SSP_ASMNAME (#alias)) | |
57 | # define __SSP_ASMNAME(cname) __SSP_ASMNAME2 (__USER_LABEL_PREFIX__, cname) | |
58 | # define __SSP_ASMNAME2(prefix, cname) __SSP_ASMNAME3 (prefix) cname | |
59 | # define __SSP_ASMNAME3(prefix) #prefix | |
60 | ||
61 | # @ssp_have_usable_vsnprintf@ __SSP_HAVE_VSNPRINTF | |
62 | ||
63 | extern void __chk_fail (void) __attribute__((__noreturn__)); | |
64 | #endif | |
65 | ||
66 | #endif /* _SSP_H */ |