src/gallium/include/pipe/p_compiler.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2007-2008 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
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  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 #ifndef P_COMPILER_H
  29 #define P_COMPILER_H
  30
  31
  32 #include "c99_compat.h" /* inline, __func__, etc. */
  33
  34 #include "p_config.h"
  35
  36 #include "util/macros.h"
  37
  38 #include <stdlib.h>
  39 #include <string.h>
  40 #include <stddef.h>
  41 #include <stdarg.h>
  42 #include <limits.h>
  43
  44
  45 #if defined(_WIN32) && !defined(__WIN32__)
  46 #define __WIN32__
  47 #endif
  48
  49 #if defined(_MSC_VER)
  50
  51 #include <intrin.h>
  52
  53 /* Avoid 'expression is always true' warning */
  54 #pragma warning(disable: 4296)
  55
  56 #endif /* _MSC_VER */
  57
  58
  59 /*
  60  * Alternative stdint.h and stdbool.h headers are supplied in include/c99 for
  61  * systems that lack it.
  62  */
  63 #include <stdint.h>
  64 #include <stdbool.h>
  65
  66
  67 #ifdef __cplusplus
  68 extern "C" {
  69 #endif
  70
  71
  72 #if !defined(__HAIKU__) && !defined(__USE_MISC)
  73 #if !defined(PIPE_OS_ANDROID)
  74 typedef unsigned int       uint;
  75 #endif
  76 typedef unsigned short     ushort;
  77 #endif
  78 typedef unsigned char      ubyte;
  79
  80 typedef unsigned char boolean;
  81 #ifndef TRUE
  82 #define TRUE  true
  83 #endif
  84 #ifndef FALSE
  85 #define FALSE false
  86 #endif
  87
  88 #ifndef va_copy
  89 #ifdef __va_copy
  90 #define va_copy(dest, src) __va_copy((dest), (src))
  91 #else
  92 #define va_copy(dest, src) (dest) = (src)
  93 #endif
  94 #endif
  95
  96 /* Forced function inlining */
  97 #ifndef ALWAYS_INLINE
  98 #  ifdef __GNUC__
  99 #    define ALWAYS_INLINE inline __attribute__((always_inline))
 100 #  elif defined(_MSC_VER)
 101 #    define ALWAYS_INLINE __forceinline
 102 #  else
 103 #    define ALWAYS_INLINE inline
 104 #  endif
 105 #endif
 106
 107
 108 /* XXX: Use standard `__func__` instead */
 109 #ifndef __FUNCTION__
 110 #  define __FUNCTION__ __func__
 111 #endif
 112
 113
 114 /* This should match linux gcc cdecl semantics everywhere, so that we
 115  * just codegen one calling convention on all platforms.
 116  */
 117 #ifdef _MSC_VER
 118 #define PIPE_CDECL __cdecl
 119 #else
 120 #define PIPE_CDECL
 121 #endif
 122
 123
 124
 125 #if defined(__GNUC__)
 126 #define PIPE_DEPRECATED  __attribute__((__deprecated__))
 127 #else
 128 #define PIPE_DEPRECATED
 129 #endif
 130
 131
 132
 133 /* Macros for data alignment. */
 134 #if defined(__GNUC__)
 135
 136 /* See http://gcc.gnu.org/onlinedocs/gcc-4.4.2/gcc/Type-Attributes.html */
 137 #define PIPE_ALIGN_TYPE(_alignment, _type) _type __attribute__((aligned(_alignment)))
 138
 139 /* See http://gcc.gnu.org/onlinedocs/gcc-4.4.2/gcc/Variable-Attributes.html */
 140 #define PIPE_ALIGN_VAR(_alignment) __attribute__((aligned(_alignment)))
 141
 142 #if defined(__GNUC__) && !defined(PIPE_ARCH_X86_64)
 143 #define PIPE_ALIGN_STACK __attribute__((force_align_arg_pointer))
 144 #else
 145 #define PIPE_ALIGN_STACK
 146 #endif
 147
 148 #elif defined(_MSC_VER)
 149
 150 /* See http://msdn.microsoft.com/en-us/library/83ythb65.aspx */
 151 #define PIPE_ALIGN_TYPE(_alignment, _type) __declspec(align(_alignment)) _type
 152 #define PIPE_ALIGN_VAR(_alignment) __declspec(align(_alignment))
 153
 154 #define PIPE_ALIGN_STACK
 155
 156 #elif defined(SWIG)
 157
 158 #define PIPE_ALIGN_TYPE(_alignment, _type) _type
 159 #define PIPE_ALIGN_VAR(_alignment)
 160
 161 #define PIPE_ALIGN_STACK
 162
 163 #else
 164
 165 #error "Unsupported compiler"
 166
 167 #endif
 168
 169
 170 #if defined(__GNUC__)
 171
 172 #define PIPE_READ_WRITE_BARRIER() __asm__("":::"memory")
 173
 174 #elif defined(_MSC_VER)
 175
 176 #define PIPE_READ_WRITE_BARRIER() _ReadWriteBarrier()
 177
 178 #else
 179
 180 #warning "Unsupported compiler"
 181 #define PIPE_READ_WRITE_BARRIER() /* */
 182
 183 #endif
 184
 185 #if defined(__cplusplus)
 186 }
 187 #endif
 188
 189
 190 #endif /* P_COMPILER_H */