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 #if NACL_WINDOWS
  57 # define DLLEXPORT __declspec(dllexport)
  58 #elif NACL_OSX
  59 # define DLLEXPORT
  60 #elif  NACL_LINUX
  61 # define DLLEXPORT __attribute__ ((visibility("default")))
  62 #else
  63 # error "what platform?"
  64 #endif
  65
  66
  67 #if NACL_WINDOWS
  68 # define UNREFERENCED_PARAMETER(P) (P)
  69 #else
  70 # define UNREFERENCED_PARAMETER(P) do { ; } while (0)
  71 #endif
  72
  73 #if NACL_WINDOWS
  74 # define NORETURN __declspec(noreturn)
  75 #else
  76 # define NORETURN __attribute__((noreturn))  /* assumes gcc */
  77 # define _cdecl /* empty */
  78 #endif
  79
  80 #if NACL_WINDOWS
  81 # define THREAD __declspec(thread)
  82 #else
  83 # define THREAD __thread
  84 # define WINAPI
  85 #endif
  86
  87 /*
  88 Per C99 7.8.14, define __STDC_CONSTANT_MACROS before including <stdint.h>
  89 to get the INTn_C and UINTn_C macros for integer constants.  It's difficult
  90 to guarantee any specific ordering of header includes, so it's difficult to
  91 guarantee that the INTn_C macros can be defined by including <stdint.h> at
  92 any specific point.  Provide GG_INTn_C macros instead.
  93 */
  94
  95 #define GG_INT8_C(x)    (x)
  96 #define GG_INT16_C(x)   (x)
  97 #define GG_INT32_C(x)   (x)
  98 #define GG_INT64_C(x)   GG_LONGLONG(x)
  99
 100 #define GG_UINT8_C(x)   (x ## U)
 101 #define GG_UINT16_C(x)  (x ## U)
 102 #define GG_UINT32_C(x)  (x ## U)
 103 #define GG_UINT64_C(x)  GG_ULONGLONG(x)
 104
 105 #if NACL_WINDOWS
 106 #define SNPRINTF _snprintf
 107 #define STRNCPY(dest, size, src, len) strncpy_s(dest, size, src, len)
 108 #define STRDUP _strdup
 109 #else
 110 #define SNPRINTF snprintf
 111 #define STRNCPY(dest, size, src, len) strncpy(dest, src, len)
 112 #define STRDUP strdup
 113 #endif
 114
 115 /*
 116  * printf macros for size_t, in the style of inttypes.h.  this is
 117  * needed since the windows compiler does not understand %zd etc.
 118  */
 119 #if NACL_WINDOWS
 120 # define  __PRIS_PREFIX
 121 #else
 122 # define  __PRIS_PREFIX "z"
 123 #endif
 124
 125 #define PRIdS __PRIS_PREFIX "d"
 126 #define PRIxS __PRIS_PREFIX "x"
 127 #define PRIuS __PRIS_PREFIX "u"
 128 #define PRIXS __PRIS_PREFIX "X"
 129 #define PRIoS __PRIS_PREFIX "o"
 130
 131 /*
 132  * printf macros for intptr_t and uintptr_t, int{8,16,32,64}
 133  */
 134 #if !NACL_WINDOWS
 135 # define __STDC_FORMAT_MACROS  /* C++ */
 136 # include <inttypes.h>
 137 #else
 138 # define __PRIPTR_PREFIX "l"
 139 # define PRIdPTR __PRIPTR_PREFIX "d"
 140 # define PRIiPTR __PRIPTR_PREFIX "i"
 141 # define PRIoPTR __PRIPTR_PREFIX "o"
 142 # define PRIuPTR __PRIPTR_PREFIX "u"
 143 # define PRIxPTR __PRIPTR_PREFIX "x"
 144 # define PRIXPTR __PRIPTR_PREFIX "X"
 145
 146 # define PRId8  "d"
 147 # define PRIi8  "i"
 148 # define PRIo8  "o"
 149 # define PRIu8  "u"
 150 # define PRIx8  "x"
 151 # define PRIX8  "X"
 152
 153 # define PRId16 "d"
 154 # define PRIi16 "i"
 155 # define PRIo16 "o"
 156 # define PRIu16 "u"
 157 # define PRIx16 "x"
 158 # define PRIX16 "X"
 159
 160 # define __PRI32_PREFIX "I32"
 161
 162 # define PRId32 __PRI32_PREFIX "d"
 163 # define PRIi32 __PRI32_PREFIX "i"
 164 # define PRIo32 __PRI32_PREFIX "o"
 165 # define PRIu32 __PRI32_PREFIX "u"
 166 # define PRIx32 __PRI32_PREFIX "x"
 167 # define PRIX32 __PRI32_PREFIX "X"
 168
 169 # define __PRI64_PREFIX "I32"
 170
 171 # define PRId64 __PRI64_PREFIX "d"
 172 # define PRIi64 __PRI64_PREFIX "i"
 173 # define PRIo64 __PRI64_PREFIX "o"
 174 # define PRIu64 __PRI64_PREFIX "u"
 175 # define PRIx64 __PRI64_PREFIX "x"
 176 # define PRIX64 __PRI64_PREFIX "X"
 177
 178 #endif
 179
 180 #endif /* _PORTABILITY_H */