1/* Object size checking support macros. 2 Copyright (C) 2004, 2005 Free Software Foundation, Inc. 3 4This file is part of GCC. 5 6GCC is free software; you can redistribute it and/or modify it under 7the terms of the GNU General Public License as published by the Free 8Software Foundation; either version 2, or (at your option) any later 9version. 10 11In addition to the permissions in the GNU General Public License, the 12Free Software Foundation gives you unlimited permission to link the 13compiled version of this file into combinations with other programs, 14and to distribute those combinations without any restriction coming 15from the use of this file. (The General Public License restrictions 16do apply in other respects; for example, they cover modification of 17the file, and distribution when not linked into a combine 18executable.) 19 20GCC is distributed in the hope that it will be useful, but WITHOUT ANY 21WARRANTY; without even the implied warranty of MERCHANTABILITY or 22FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 23for more details. 24 25You should have received a copy of the GNU General Public License 26along with GCC; see the file COPYING. If not, write to the Free 27Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 2802110-1301, USA. */ 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 63extern void __chk_fail (void) __attribute__((__noreturn__)); 64#endif 65 66#endif /* _SSP_H */ 67