include/portability.h

   1 /*
   2  * Copyright 2008, Google Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met:
   8  *
   9  *     * Redistributions of source code must retain the above copyright
  10  * notice, this list of conditions and the following disclaimer.
  11  *     * Redistributions in binary form must reproduce the above
  12  * copyright notice, this list of conditions and the following disclaimer
  13  * in the documentation and/or other materials provided with the
  14  * distribution.
  15  *     * Neither the name of Google Inc. nor the names of its
  16  * contributors may be used to endorse or promote products derived from
  17  * this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #ifndef _PORTABILITY_H
  33 #define _PORTABILITY_H
  34
  35 #include <stdlib.h>
  36
  37 #if NACL_WINDOWS
  38 # include <malloc.h>
  39 # include "win/port_win.h"
  40 #else
  41 # include <sys/types.h>
  42 # include <stdint.h>
  43 #endif  /*NACL_WINDOWS*/
  44
  45 #if NACL_OSX
  46 #include "osx/port_osx.h"
  47 #endif
  48
  49 // MSVC supports "inline" only in C++
  50 #if NACL_WINDOWS
  51 # define INLINE __inline
  52 #else
  53 # define INLINE inline
  54 #endif
  55
  56
  57 #if NACL_WINDOWS
  58 # define DLLEXPORT __declspec(dllexport)
  59 #elif NACL_OSX
  60 # define DLLEXPORT
  61 #elif  NACL_LINUX
  62 # define DLLEXPORT __attribute__ ((visibility("default")))
  63 #else
  64 # error "what platform?"
  65 #endif
  66
  67
  68 #if NACL_WINDOWS
  69 # define UNREFERENCED_PARAMETER(P) (P)
  70 #else
  71 # define UNREFERENCED_PARAMETER(P) do { ; } while (0)
  72 #endif
  73
  74 #if NACL_WINDOWS
  75 # define NORETURN __declspec(noreturn)
  76 #else
  77 # define NORETURN __attribute__((noreturn))  /* assumes gcc */
  78 # define _cdecl /* empty */
  79 #endif
  80
  81 #if NACL_WINDOWS
  82 # define THREAD __declspec(thread)
  83 #else
  84 # define THREAD __thread
  85 # define WINAPI
  86 #endif
  87
  88 /*
  89 Per C99 7.8.14, define __STDC_CONSTANT_MACROS before including <stdint.h>
  90 to get the INTn_C and UINTn_C macros for integer constants.  It's difficult
  91 to guarantee any specific ordering of header includes, so it's difficult to
  92 guarantee that the INTn_C macros can be defined by including <stdint.h> at
  93 any specific point.  Provide GG_INTn_C macros instead.
  94 */
  95
  96 #define GG_INT8_C(x)    (x)
  97 #define GG_INT16_C(x)   (x)
  98 #define GG_INT32_C(x)   (x)
  99 #define GG_INT64_C(x)   GG_LONGLONG(x)
 100
 101 #define GG_UINT8_C(x)   (x ## U)
 102 #define GG_UINT16_C(x)  (x ## U)
 103 #define GG_UINT32_C(x)  (x ## U)
 104 #define GG_UINT64_C(x)  GG_ULONGLONG(x)
 105
 106 #if NACL_WINDOWS
 107 #define SNPRINTF _snprintf
 108 #else
 109 #define SNPRINTF snprintf
 110 #endif
 111
 112 /*
 113  * printf macros for size_t, in the style of inttypes.h.  this is
 114  * needed since the windows compiler does not understand %zd etc.
 115  */
 116 #if NACL_WINDOWS
 117 # define  __PRIS_PREFIX
 118 #else
 119 # define  __PRIS_PREFIX "z"
 120 #endif
 121
 122 #define PRIdS __PRIS_PREFIX "d"
 123 #define PRIxS __PRIS_PREFIX "x"
 124 #define PRIuS __PRIS_PREFIX "u"
 125 #define PRIXS __PRIS_PREFIX "X"
 126 #define PRIoS __PRIS_PREFIX "o"
 127
 128 #endif // _PORTABILITY_H