src/gallium/include/pipe/p_config.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
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  27
  28 /**
  29  * @file
  30  * Gallium configuration defines.
  31  *
  32  * This header file sets several defines based on the compiler, processor
  33  * architecture, and operating system being used. These defines should be used
  34  * throughout the code to facilitate porting to new platforms. It is likely that
  35  * this file is auto-generated by an autoconf-like tool at some point, as some
  36  * things cannot be determined by pre-defined environment alone.
  37  *
  38  * See also:
  39  * - http://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html
  40  * - echo | gcc -dM -E - | sort
  41  * - http://msdn.microsoft.com/en-us/library/b0084kay.aspx
  42  *
  43  * @author José Fonseca <jfonseca@vmware.com>
  44  */
  45
  46 #ifndef P_CONFIG_H_
  47 #define P_CONFIG_H_
  48
  49 #include <limits.h>
  50 /*
  51  * Compiler
  52  */
  53
  54 #if defined(__GNUC__)
  55 #define PIPE_CC_GCC
  56 #define PIPE_CC_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
  57 #endif
  58
  59 /*
  60  * Meaning of _MSC_VER value:
  61  * - 1800: Visual Studio 2013
  62  * - 1700: Visual Studio 2012
  63  * - 1600: Visual Studio 2010
  64  * - 1500: Visual Studio 2008
  65  * - 1400: Visual C++ 2005
  66  * - 1310: Visual C++ .NET 2003
  67  * - 1300: Visual C++ .NET 2002
  68  *
  69  * __MSC__ seems to be an old macro -- it is not pre-defined on recent MSVC
  70  * versions.
  71  */
  72 #if defined(_MSC_VER) || defined(__MSC__)
  73 #define PIPE_CC_MSVC
  74 #endif
  75
  76 #if defined(__ICL)
  77 #define PIPE_CC_ICL
  78 #endif
  79
  80
  81 /*
  82  * Processor architecture
  83  */
  84
  85 #if defined(__i386__) /* gcc */ || defined(_M_IX86) /* msvc */ || defined(_X86_) || defined(__386__) || defined(i386) || defined(__i386) /* Sun cc */
  86 #define PIPE_ARCH_X86
  87 #endif
  88
  89 #if defined(__x86_64__) /* gcc */ || defined(_M_X64) /* msvc */ || defined(_M_AMD64) /* msvc */ || defined(__x86_64) /* Sun cc */
  90 #define PIPE_ARCH_X86_64
  91 #endif
  92
  93 #if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
  94 #if defined(PIPE_CC_GCC) && !defined(__SSE2__)
  95 /* #warning SSE2 support requires -msse -msse2 compiler options */
  96 #else
  97 #define PIPE_ARCH_SSE
  98 #endif
  99 #if defined(PIPE_CC_GCC) && (__GNUC__ * 100 + __GNUC_MINOR__) < 409 && !defined(__SSSE3__)
 100 /* #warning SSE3 support requires -msse3 compiler options before GCC 4.9 */
 101 #else
 102 #define PIPE_ARCH_SSSE3
 103 #endif
 104 #endif
 105
 106 #if defined(__ppc__) || defined(__ppc64__) || defined(__PPC__)
 107 #define PIPE_ARCH_PPC
 108 #if defined(__ppc64__) || defined(__PPC64__)
 109 #define PIPE_ARCH_PPC_64
 110 #endif
 111 #endif
 112
 113 #if defined(__s390x__)
 114 #define PIPE_ARCH_S390
 115 #endif
 116
 117 #if defined(__arm__)
 118 #define PIPE_ARCH_ARM
 119 #endif
 120
 121 #if defined(__aarch64__)
 122 #define PIPE_ARCH_AARCH64
 123 #endif
 124
 125 /*
 126  * Endian detection.
 127  */
 128
 129 #ifdef __GLIBC__
 130 #include <endian.h>
 131
 132 #if __BYTE_ORDER == __LITTLE_ENDIAN
 133 # define PIPE_ARCH_LITTLE_ENDIAN
 134 #elif __BYTE_ORDER == __BIG_ENDIAN
 135 # define PIPE_ARCH_BIG_ENDIAN
 136 #endif
 137
 138 #elif defined(__APPLE__)
 139 #include <machine/endian.h>
 140
 141 #if __DARWIN_BYTE_ORDER == __DARWIN_LITTLE_ENDIAN
 142 # define PIPE_ARCH_LITTLE_ENDIAN
 143 #elif __DARWIN_BYTE_ORDER == __DARWIN_BIG_ENDIAN
 144 # define PIPE_ARCH_BIG_ENDIAN
 145 #endif
 146
 147 #elif defined(__sun)
 148 #include <sys/isa_defs.h>
 149
 150 #if defined(_LITTLE_ENDIAN)
 151 # define PIPE_ARCH_LITTLE_ENDIAN
 152 #elif defined(_BIG_ENDIAN)
 153 # define PIPE_ARCH_BIG_ENDIAN
 154 #endif
 155
 156 #elif defined(__OpenBSD__) || defined(__NetBSD__)
 157 #include <sys/types.h>
 158 #include <machine/endian.h>
 159
 160 #if _BYTE_ORDER == _LITTLE_ENDIAN
 161 # define PIPE_ARCH_LITTLE_ENDIAN
 162 #elif _BYTE_ORDER == _BIG_ENDIAN
 163 # define PIPE_ARCH_BIG_ENDIAN
 164 #endif
 165
 166 #else
 167
 168 #if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64) || defined(PIPE_ARCH_ARM) || defined(PIPE_ARCH_AARCH64)
 169 #define PIPE_ARCH_LITTLE_ENDIAN
 170 #elif defined(PIPE_ARCH_PPC) || defined(PIPE_ARCH_PPC_64) || defined(PIPE_ARCH_S390)
 171 #define PIPE_ARCH_BIG_ENDIAN
 172 #endif
 173
 174 #endif
 175
 176 #if !defined(PIPE_ARCH_LITTLE_ENDIAN) && !defined(PIPE_ARCH_BIG_ENDIAN)
 177 #error Unknown Endianness
 178 #endif
 179
 180 /*
 181  * Auto-detect the operating system family.
 182  *
 183  * See subsystem below for a more fine-grained distinction.
 184  */
 185
 186 #if defined(__linux__)
 187 #define PIPE_OS_LINUX
 188 #define PIPE_OS_UNIX
 189 #endif
 190
 191 /*
 192  * Android defines __linux__ so PIPE_OS_LINUX and PIPE_OS_UNIX will also be
 193  * defined.
 194  */
 195 #if defined(ANDROID)
 196 #define PIPE_OS_ANDROID
 197 #endif
 198
 199 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
 200 #define PIPE_OS_FREEBSD
 201 #define PIPE_OS_BSD
 202 #define PIPE_OS_UNIX
 203 #endif
 204
 205 #if defined(__OpenBSD__)
 206 #define PIPE_OS_OPENBSD
 207 #define PIPE_OS_BSD
 208 #define PIPE_OS_UNIX
 209 #endif
 210
 211 #if defined(__NetBSD__)
 212 #define PIPE_OS_NETBSD
 213 #define PIPE_OS_BSD
 214 #define PIPE_OS_UNIX
 215 #endif
 216
 217 #if defined(__DragonFly__)
 218 #define PIPE_OS_DRAGONFLY
 219 #define PIPE_OS_BSD
 220 #define PIPE_OS_UNIX
 221 #endif
 222
 223 #if defined(__GNU__)
 224 #define PIPE_OS_HURD
 225 #define PIPE_OS_UNIX
 226 #endif
 227
 228 #if defined(__sun)
 229 #define PIPE_OS_SOLARIS
 230 #define PIPE_OS_UNIX
 231 #endif
 232
 233 #if defined(__APPLE__)
 234 #define PIPE_OS_APPLE
 235 #define PIPE_OS_UNIX
 236 #endif
 237
 238 #if defined(_WIN32) || defined(WIN32)
 239 #define PIPE_OS_WINDOWS
 240 #endif
 241
 242 #if defined(__HAIKU__)
 243 #define PIPE_OS_HAIKU
 244 #define PIPE_OS_UNIX
 245 #endif
 246
 247 #if defined(__CYGWIN__)
 248 #define PIPE_OS_CYGWIN
 249 #define PIPE_OS_UNIX
 250 #endif
 251
 252 /*
 253  * Try to auto-detect the subsystem.
 254  *
 255  * NOTE: There is no way to auto-detect most of these.
 256  */
 257
 258 #if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS)
 259 #define PIPE_SUBSYSTEM_DRI
 260 #endif /* PIPE_OS_LINUX || PIPE_OS_BSD || PIPE_OS_SOLARIS */
 261
 262 #if defined(PIPE_OS_WINDOWS)
 263 #if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
 264 /* Windows User-space Library */
 265 #else
 266 #define PIPE_SUBSYSTEM_WINDOWS_USER
 267 #endif
 268 #endif /* PIPE_OS_WINDOWS */
 269
 270
 271 #endif /* P_CONFIG_H_ */