include/secure/_common.h

   1 /*
   2  * Copyright (c) 2007, 2008 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 #ifndef _SECURE__COMMON_H_
  25 #define _SECURE__COMMON_H_
  26
  27 #undef _USE_FORTIFY_LEVEL
  28 #if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0
  29 #  if _FORTIFY_SOURCE > 1
  30 #    define _USE_FORTIFY_LEVEL 2
  31 #  else
  32 #    define _USE_FORTIFY_LEVEL 1
  33 #  endif
  34 #else
  35 #  define _USE_FORTIFY_LEVEL 0
  36 #endif
  37
  38 #define __darwin_obsz0(object) __builtin_object_size (object, 0)
  39 #define __darwin_obsz(object) __builtin_object_size (object, _USE_FORTIFY_LEVEL > 1 ? 1 : 0)
  40
  41 #endif