/* Object size checking support macros. Copyright (C) 2004, 2005 Free Software Foundation, Inc. This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. In addition to the permissions in the GNU General Public License, the Free Software Foundation gives you unlimited permission to link the compiled version of this file into combinations with other programs, and to distribute those combinations without any restriction coming from the use of this file. (The General Public License restrictions do apply in other respects; for example, they cover modification of the file, and distribution when not linked into a combine executable.) GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GCC; see the file COPYING. If not, write to the Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ /* As a special exception, if you link this library with files compiled with GCC to produce an executable, this does not cause the resulting executable to be covered by the GNU General Public License. This exception does not however invalidate any other reasons why the executable file might be covered by the GNU General Public License. */ #ifndef _SSP_H #define _SSP_H 1 #if _FORTIFY_SOURCE > 0 && __OPTIMIZE__ > 0 \ && defined __GNUC__ \ && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)) \ && !defined __cplusplus # if _FORTIFY_SOURCE == 1 # define __SSP_FORTIFY_LEVEL 1 # elif _FORTIFY_SOURCE > 1 # define __SSP_FORTIFY_LEVEL 2 # endif #endif #if __SSP_FORTIFY_LEVEL > 0 # include <stddef.h> # define __ssp_bos(ptr) __builtin_object_size (ptr, __SSP_FORTIFY_LEVEL > 1) # define __ssp_bos0(ptr) __builtin_object_size (ptr, 0) # define __SSP_REDIRECT(name, proto, alias) \ name proto __asm__ (__SSP_ASMNAME (#alias)) # define __SSP_ASMNAME(cname) __SSP_ASMNAME2 (__USER_LABEL_PREFIX__, cname) # define __SSP_ASMNAME2(prefix, cname) __SSP_ASMNAME3 (prefix) cname # define __SSP_ASMNAME3(prefix) #prefix # @ssp_have_usable_vsnprintf@ __SSP_HAVE_VSNPRINTF extern void __chk_fail (void) __attribute__((__noreturn__)); #endif #endif /* _SSP_H */ |