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  *
  26  **************************************************************************/
  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 #include "util/u_endian.h"
 130 #if !defined(PIPE_ARCH_LITTLE_ENDIAN) && !defined(PIPE_ARCH_BIG_ENDIAN)
 131
 132 #if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64) || defined(PIPE_ARCH_ARM) || defined(PIPE_ARCH_AARCH64)
 133 #define PIPE_ARCH_LITTLE_ENDIAN
 134 #elif defined(PIPE_ARCH_PPC) || defined(PIPE_ARCH_PPC_64) || defined(PIPE_ARCH_S390)
 135 #define PIPE_ARCH_BIG_ENDIAN
 136 #endif
 137
 138 #endif
 139
 140 #if !defined(PIPE_ARCH_LITTLE_ENDIAN) && !defined(PIPE_ARCH_BIG_ENDIAN)
 141 #error Unknown Endianness
 142 #endif
 143
 144 /*
 145  * Auto-detect the operating system family.
 146  *
 147  * See subsystem below for a more fine-grained distinction.
 148  */
 149
 150 #if defined(__linux__)
 151 #define PIPE_OS_LINUX
 152 #define PIPE_OS_UNIX
 153 #endif
 154
 155 /*
 156  * Android defines __linux__ so PIPE_OS_LINUX and PIPE_OS_UNIX will also be
 157  * defined.
 158  */
 159 #if defined(ANDROID)
 160 #define PIPE_OS_ANDROID
 161 #endif
 162
 163 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
 164 #define PIPE_OS_FREEBSD
 165 #define PIPE_OS_BSD
 166 #define PIPE_OS_UNIX
 167 #endif
 168
 169 #if defined(__OpenBSD__)
 170 #define PIPE_OS_OPENBSD
 171 #define PIPE_OS_BSD
 172 #define PIPE_OS_UNIX
 173 #endif
 174
 175 #if defined(__NetBSD__)
 176 #define PIPE_OS_NETBSD
 177 #define PIPE_OS_BSD
 178 #define PIPE_OS_UNIX
 179 #endif
 180
 181 #if defined(__DragonFly__)
 182 #define PIPE_OS_DRAGONFLY
 183 #define PIPE_OS_BSD
 184 #define PIPE_OS_UNIX
 185 #endif
 186
 187 #if defined(__GNU__)
 188 #define PIPE_OS_HURD
 189 #define PIPE_OS_UNIX
 190 #endif
 191
 192 #if defined(__sun)
 193 #define PIPE_OS_SOLARIS
 194 #define PIPE_OS_UNIX
 195 #endif
 196
 197 #if defined(__APPLE__)
 198 #define PIPE_OS_APPLE
 199 #define PIPE_OS_UNIX
 200 #endif
 201
 202 #if defined(_WIN32) || defined(WIN32)
 203 #define PIPE_OS_WINDOWS
 204 #endif
 205
 206 #if defined(__HAIKU__)
 207 #define PIPE_OS_HAIKU
 208 #define PIPE_OS_UNIX
 209 #endif
 210
 211 #if defined(__CYGWIN__)
 212 #define PIPE_OS_CYGWIN
 213 #define PIPE_OS_UNIX
 214 #endif
 215
 216 /*
 217  * Try to auto-detect the subsystem.
 218  *
 219  * NOTE: There is no way to auto-detect most of these.
 220  */
 221
 222 #if defined(PIPE_OS_WINDOWS)
 223 #if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
 224 /* Windows User-space Library */
 225 #else
 226 #define PIPE_SUBSYSTEM_WINDOWS_USER
 227 #endif
 228 #endif /* PIPE_OS_WINDOWS */
 229
 230
 231 #endif /* P_CONFIG_H_ */