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 #endif
  57
  58 /*
  59  * Meaning of _MSC_VER value:
  60  * - 1800: Visual Studio 2013
  61  * - 1700: Visual Studio 2012
  62  * - 1600: Visual Studio 2010
  63  * - 1500: Visual Studio 2008
  64  * - 1400: Visual C++ 2005
  65  * - 1310: Visual C++ .NET 2003
  66  * - 1300: Visual C++ .NET 2002
  67  *
  68  * __MSC__ seems to be an old macro -- it is not pre-defined on recent MSVC
  69  * versions.
  70  */
  71 #if defined(_MSC_VER) || defined(__MSC__)
  72 #define PIPE_CC_MSVC
  73 #endif
  74
  75 #if defined(__ICL)
  76 #define PIPE_CC_ICL
  77 #endif
  78
  79
  80 /*
  81  * Processor architecture
  82  */
  83
  84 #if defined(__i386__) /* gcc */ || defined(_M_IX86) /* msvc */ || defined(_X86_) || defined(__386__) || defined(i386) || defined(__i386) /* Sun cc */
  85 #define PIPE_ARCH_X86
  86 #endif
  87
  88 #if defined(__x86_64__) /* gcc */ || defined(_M_X64) /* msvc */ || defined(_M_AMD64) /* msvc */ || defined(__x86_64) /* Sun cc */
  89 #define PIPE_ARCH_X86_64
  90 #endif
  91
  92 #if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
  93 #if defined(PIPE_CC_GCC) && !defined(__SSE2__)
  94 /* #warning SSE2 support requires -msse -msse2 compiler options */
  95 #else
  96 #define PIPE_ARCH_SSE
  97 #endif
  98 #if defined(PIPE_CC_GCC) && (__GNUC__ * 100 + __GNUC_MINOR__) < 409 && !defined(__SSSE3__)
  99 /* #warning SSE3 support requires -msse3 compiler options before GCC 4.9 */
 100 #else
 101 #define PIPE_ARCH_SSSE3
 102 #endif
 103 #endif
 104
 105 #if defined(__ppc__) || defined(__ppc64__) || defined(__PPC__)
 106 #define PIPE_ARCH_PPC
 107 #if defined(__ppc64__) || defined(__PPC64__)
 108 #define PIPE_ARCH_PPC_64
 109 #endif
 110 #endif
 111
 112 #if defined(__s390x__)
 113 #define PIPE_ARCH_S390
 114 #endif
 115
 116 #if defined(__arm__)
 117 #define PIPE_ARCH_ARM
 118 #endif
 119
 120 #if defined(__aarch64__)
 121 #define PIPE_ARCH_AARCH64
 122 #endif
 123
 124 /*
 125  * Endian detection.
 126  */
 127
 128 #include "util/u_endian.h"
 129 #if !defined(PIPE_ARCH_LITTLE_ENDIAN) && !defined(PIPE_ARCH_BIG_ENDIAN)
 130
 131 #if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64) || defined(PIPE_ARCH_ARM) || defined(PIPE_ARCH_AARCH64)
 132 #define PIPE_ARCH_LITTLE_ENDIAN
 133 #elif defined(PIPE_ARCH_PPC) || defined(PIPE_ARCH_PPC_64) || defined(PIPE_ARCH_S390)
 134 #define PIPE_ARCH_BIG_ENDIAN
 135 #endif
 136
 137 #endif
 138
 139 #if !defined(PIPE_ARCH_LITTLE_ENDIAN) && !defined(PIPE_ARCH_BIG_ENDIAN)
 140 #error Unknown Endianness
 141 #endif
 142
 143 /*
 144  * Auto-detect the operating system family.
 145  *
 146  * See subsystem below for a more fine-grained distinction.
 147  */
 148
 149 #if defined(__linux__)
 150 #define PIPE_OS_LINUX
 151 #define PIPE_OS_UNIX
 152 #endif
 153
 154 /*
 155  * Android defines __linux__ so PIPE_OS_LINUX and PIPE_OS_UNIX will also be
 156  * defined.
 157  */
 158 #if defined(ANDROID)
 159 #define PIPE_OS_ANDROID
 160 #endif
 161
 162 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
 163 #define PIPE_OS_FREEBSD
 164 #define PIPE_OS_BSD
 165 #define PIPE_OS_UNIX
 166 #endif
 167
 168 #if defined(__OpenBSD__)
 169 #define PIPE_OS_OPENBSD
 170 #define PIPE_OS_BSD
 171 #define PIPE_OS_UNIX
 172 #endif
 173
 174 #if defined(__NetBSD__)
 175 #define PIPE_OS_NETBSD
 176 #define PIPE_OS_BSD
 177 #define PIPE_OS_UNIX
 178 #endif
 179
 180 #if defined(__DragonFly__)
 181 #define PIPE_OS_DRAGONFLY
 182 #define PIPE_OS_BSD
 183 #define PIPE_OS_UNIX
 184 #endif
 185
 186 #if defined(__GNU__)
 187 #define PIPE_OS_HURD
 188 #define PIPE_OS_UNIX
 189 #endif
 190
 191 #if defined(__sun)
 192 #define PIPE_OS_SOLARIS
 193 #define PIPE_OS_UNIX
 194 #endif
 195
 196 #if defined(__APPLE__)
 197 #define PIPE_OS_APPLE
 198 #define PIPE_OS_UNIX
 199 #endif
 200
 201 #if defined(_WIN32) || defined(WIN32)
 202 #define PIPE_OS_WINDOWS
 203 #endif
 204
 205 #if defined(__HAIKU__)
 206 #define PIPE_OS_HAIKU
 207 #define PIPE_OS_UNIX
 208 #endif
 209
 210 #if defined(__CYGWIN__)
 211 #define PIPE_OS_CYGWIN
 212 #define PIPE_OS_UNIX
 213 #endif
 214
 215 /*
 216  * Try to auto-detect the subsystem.
 217  *
 218  * NOTE: There is no way to auto-detect most of these.
 219  */
 220
 221 #if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS)
 222 #define PIPE_SUBSYSTEM_DRI
 223 #endif /* PIPE_OS_LINUX || PIPE_OS_BSD || PIPE_OS_SOLARIS */
 224
 225 #if defined(PIPE_OS_WINDOWS)
 226 #if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
 227 /* Windows User-space Library */
 228 #else
 229 #define PIPE_SUBSYSTEM_WINDOWS_USER
 230 #endif
 231 #endif /* PIPE_OS_WINDOWS */
 232
 233
 234 #endif /* P_CONFIG_H_ */