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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  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  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 #if defined(__SUNPRO_C) || defined(__SUNPRO_CC)
  81 #define PIPE_CC_SUNPRO
  82 #endif
  83
  84
  85 /*
  86  * Processor architecture
  87  */
  88
  89 #if defined(__i386__) /* gcc */ || defined(_M_IX86) /* msvc */ || defined(_X86_) || defined(__386__) || defined(i386) || defined(__i386) /* Sun cc */
  90 #define PIPE_ARCH_X86
  91 #endif
  92
  93 #if defined(__x86_64__) /* gcc */ || defined(_M_X64) /* msvc */ || defined(_M_AMD64) /* msvc */ || defined(__x86_64) /* Sun cc */
  94 #define PIPE_ARCH_X86_64
  95 #endif
  96
  97 #if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
  98 #if defined(PIPE_CC_GCC) && !defined(__SSE2__)
  99 /* #warning SSE2 support requires -msse -msse2 compiler options */
 100 #else
 101 #define PIPE_ARCH_SSE
 102 #endif
 103 #if defined(PIPE_CC_GCC) && (__GNUC__ * 100 + __GNUC_MINOR__) < 409 && !defined(__SSSE3__)
 104 /* #warning SSE3 support requires -msse3 compiler options before GCC 4.9 */
 105 #else
 106 #define PIPE_ARCH_SSSE3
 107 #endif
 108 #endif
 109
 110 #if defined(__ppc__) || defined(__ppc64__) || defined(__PPC__)
 111 #define PIPE_ARCH_PPC
 112 #if defined(__ppc64__) || defined(__PPC64__)
 113 #define PIPE_ARCH_PPC_64
 114 #endif
 115 #endif
 116
 117 #if defined(__s390x__)
 118 #define PIPE_ARCH_S390
 119 #endif
 120
 121 #if defined(__arm__)
 122 #define PIPE_ARCH_ARM
 123 #endif
 124
 125 #if defined(__aarch64__)
 126 #define PIPE_ARCH_AARCH64
 127 #endif
 128
 129 /*
 130  * Endian detection.
 131  */
 132
 133 #ifdef __GLIBC__
 134 #include <endian.h>
 135
 136 #if __BYTE_ORDER == __LITTLE_ENDIAN
 137 # define PIPE_ARCH_LITTLE_ENDIAN
 138 #elif __BYTE_ORDER == __BIG_ENDIAN
 139 # define PIPE_ARCH_BIG_ENDIAN
 140 #endif
 141
 142 #elif defined(__APPLE__)
 143 #include <machine/endian.h>
 144
 145 #if __DARWIN_BYTE_ORDER == __DARWIN_LITTLE_ENDIAN
 146 # define PIPE_ARCH_LITTLE_ENDIAN
 147 #elif __DARWIN_BYTE_ORDER == __DARWIN_BIG_ENDIAN
 148 # define PIPE_ARCH_BIG_ENDIAN
 149 #endif
 150
 151 #elif defined(__sun)
 152 #include <sys/isa_defs.h>
 153
 154 #if defined(_LITTLE_ENDIAN)
 155 # define PIPE_ARCH_LITTLE_ENDIAN
 156 #elif defined(_BIG_ENDIAN)
 157 # define PIPE_ARCH_BIG_ENDIAN
 158 #endif
 159
 160 #elif defined(__OpenBSD__) || defined(__NetBSD__)
 161 #include <sys/types.h>
 162 #include <machine/endian.h>
 163
 164 #if _BYTE_ORDER == _LITTLE_ENDIAN
 165 # define PIPE_ARCH_LITTLE_ENDIAN
 166 #elif _BYTE_ORDER == _BIG_ENDIAN
 167 # define PIPE_ARCH_BIG_ENDIAN
 168 #endif
 169
 170 #else
 171
 172 #if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64) || defined(PIPE_ARCH_ARM) || defined(PIPE_ARCH_AARCH64)
 173 #define PIPE_ARCH_LITTLE_ENDIAN
 174 #elif defined(PIPE_ARCH_PPC) || defined(PIPE_ARCH_PPC_64) || defined(PIPE_ARCH_S390)
 175 #define PIPE_ARCH_BIG_ENDIAN
 176 #endif
 177
 178 #endif
 179
 180 #if !defined(PIPE_ARCH_LITTLE_ENDIAN) && !defined(PIPE_ARCH_BIG_ENDIAN)
 181 #error Unknown Endianness
 182 #endif
 183
 184 /*
 185  * Auto-detect the operating system family.
 186  *
 187  * See subsystem below for a more fine-grained distinction.
 188  */
 189
 190 #if defined(__linux__)
 191 #define PIPE_OS_LINUX
 192 #define PIPE_OS_UNIX
 193 #endif
 194
 195 /*
 196  * Android defines __linux__ so PIPE_OS_LINUX and PIPE_OS_UNIX will also be
 197  * defined.
 198  */
 199 #if defined(ANDROID)
 200 #define PIPE_OS_ANDROID
 201 #endif
 202
 203 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
 204 #define PIPE_OS_FREEBSD
 205 #define PIPE_OS_BSD
 206 #define PIPE_OS_UNIX
 207 #endif
 208
 209 #if defined(__OpenBSD__)
 210 #define PIPE_OS_OPENBSD
 211 #define PIPE_OS_BSD
 212 #define PIPE_OS_UNIX
 213 #endif
 214
 215 #if defined(__NetBSD__)
 216 #define PIPE_OS_NETBSD
 217 #define PIPE_OS_BSD
 218 #define PIPE_OS_UNIX
 219 #endif
 220
 221 #if defined(__DragonFly__)
 222 #define PIPE_OS_DRAGONFLY
 223 #define PIPE_OS_BSD
 224 #define PIPE_OS_UNIX
 225 #endif
 226
 227 #if defined(__GNU__)
 228 #define PIPE_OS_HURD
 229 #define PIPE_OS_UNIX
 230 #endif
 231
 232 #if defined(__sun)
 233 #define PIPE_OS_SOLARIS
 234 #define PIPE_OS_UNIX
 235 #endif
 236
 237 #if defined(__APPLE__)
 238 #define PIPE_OS_APPLE
 239 #define PIPE_OS_UNIX
 240 #endif
 241
 242 #if defined(_WIN32) || defined(WIN32)
 243 #define PIPE_OS_WINDOWS
 244 #endif
 245
 246 #if defined(__HAIKU__)
 247 #define PIPE_OS_HAIKU
 248 #define PIPE_OS_UNIX
 249 #endif
 250
 251 #if defined(__CYGWIN__)
 252 #define PIPE_OS_CYGWIN
 253 #define PIPE_OS_UNIX
 254 #endif
 255
 256 /*
 257  * Try to auto-detect the subsystem.
 258  *
 259  * NOTE: There is no way to auto-detect most of these.
 260  */
 261
 262 #if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS)
 263 #define PIPE_SUBSYSTEM_DRI
 264 #endif /* PIPE_OS_LINUX || PIPE_OS_BSD || PIPE_OS_SOLARIS */
 265
 266 #if defined(PIPE_OS_WINDOWS)
 267 #if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
 268 /* Windows User-space Library */
 269 #else
 270 #define PIPE_SUBSYSTEM_WINDOWS_USER
 271 #endif
 272 #endif /* PIPE_OS_WINDOWS */
 273
 274
 275 #endif /* P_CONFIG_H_ */