| 1 | /* Object size checking support macros.
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| 2 | Copyright (C) 2004, 2005, 2009 Free Software Foundation, Inc.
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| 3 |
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| 4 | This file is part of GCC.
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| 5 |
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| 6 | GCC is free software; you can redistribute it and/or modify it under
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| 7 | the terms of the GNU General Public License as published by the Free
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| 8 | Software Foundation; either version 3, or (at your option) any later
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| 9 | version.
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| 10 |
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| 11 | In addition to the permissions in the GNU General Public License, the
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| 12 | Free Software Foundation gives you unlimited permission to link the
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| 13 | compiled version of this file into combinations with other programs,
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| 14 | and to distribute those combinations without any restriction coming
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| 15 | from the use of this file. (The General Public License restrictions
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| 16 | do apply in other respects; for example, they cover modification of
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| 17 | the file, and distribution when not linked into a combine
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| 18 | executable.)
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| 19 |
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| 20 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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| 21 | WARRANTY; without even the implied warranty of MERCHANTABILITY or
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| 22 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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| 23 | for more details.
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| 24 |
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| 25 | Under Section 7 of GPL version 3, you are granted additional
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| 26 | permissions described in the GCC Runtime Library Exception, version
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| 27 | 3.1, as published by the Free Software Foundation.
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| 28 |
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| 29 | You should have received a copy of the GNU General Public License and
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| 30 | a copy of the GCC Runtime Library Exception along with this program;
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| 31 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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| 32 | <http://www.gnu.org/licenses/>. */
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| 33 |
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| 34 |
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| 35 | #ifndef _SSP_H
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| 36 | #define _SSP_H 1
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| 37 |
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| 38 | #if _FORTIFY_SOURCE > 0 && __OPTIMIZE__ > 0 \
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| 39 | && defined __GNUC__ \
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| 40 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)) \
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| 41 | && !defined __cplusplus
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| 42 | # if _FORTIFY_SOURCE == 1
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| 43 | # define __SSP_FORTIFY_LEVEL 1
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| 44 | # elif _FORTIFY_SOURCE > 1
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| 45 | # define __SSP_FORTIFY_LEVEL 2
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| 46 | # endif
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| 47 | #endif
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| 48 |
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| 49 | #if __SSP_FORTIFY_LEVEL > 0
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| 50 | # include <stddef.h>
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| 51 | # define __ssp_bos(ptr) __builtin_object_size (ptr, __SSP_FORTIFY_LEVEL > 1)
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| 52 | # define __ssp_bos0(ptr) __builtin_object_size (ptr, 0)
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| 53 |
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| 54 | # define __SSP_REDIRECT(name, proto, alias) \
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| 55 | name proto __asm__ (__SSP_ASMNAME (#alias))
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| 56 | # define __SSP_ASMNAME(cname) __SSP_ASMNAME2 (__USER_LABEL_PREFIX__, cname)
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| 57 | # define __SSP_ASMNAME2(prefix, cname) __SSP_ASMNAME3 (prefix) cname
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| 58 | # define __SSP_ASMNAME3(prefix) #prefix
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| 59 |
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| 60 | # undef __SSP_HAVE_VSNPRINTF
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| 61 |
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| 62 | extern void __chk_fail (void) __attribute__((__noreturn__));
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| 63 | #endif
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| 64 |
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| 65 | #endif /* _SSP_H */
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