src/gallium/include/pipe/p_compiler.h

   1 /**************************************************************************
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   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,
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  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  *
  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 /* Avoid 'expression is always true' warning */
  52 #pragma warning(disable: 4296)
  53
  54 #endif /* _MSC_VER */
  55
  56
  57 /*
  58  * Alternative stdint.h and stdbool.h headers are supplied in include/c99 for
  59  * systems that lack it.
  60  */
  61 #ifndef __STDC_LIMIT_MACROS
  62 #define __STDC_LIMIT_MACROS 1
  63 #endif
  64 #include <stdint.h>
  65 #include <stdbool.h>
  66
  67
  68 #ifdef __cplusplus
  69 extern "C" {
  70 #endif
  71
  72
  73 #if !defined(__HAIKU__) && !defined(__USE_MISC)
  74 #if !defined(PIPE_OS_ANDROID)
  75 typedef unsigned int       uint;
  76 #endif
  77 typedef unsigned short     ushort;
  78 #endif
  79 typedef unsigned char      ubyte;
  80
  81 typedef unsigned char boolean;
  82 #ifndef TRUE
  83 #define TRUE  true
  84 #endif
  85 #ifndef FALSE
  86 #define FALSE false
  87 #endif
  88
  89 #ifndef va_copy
  90 #ifdef __va_copy
  91 #define va_copy(dest, src) __va_copy((dest), (src))
  92 #else
  93 #define va_copy(dest, src) (dest) = (src)
  94 #endif
  95 #endif
  96
  97 /* Forced function inlining */
  98 #ifndef ALWAYS_INLINE
  99 #  ifdef __GNUC__
 100 #    define ALWAYS_INLINE inline __attribute__((always_inline))
 101 #  elif defined(_MSC_VER)
 102 #    define ALWAYS_INLINE __forceinline
 103 #  else
 104 #    define ALWAYS_INLINE inline
 105 #  endif
 106 #endif
 107
 108
 109 /* XXX: Use standard `__func__` instead */
 110 #ifndef __FUNCTION__
 111 #  define __FUNCTION__ __func__
 112 #endif
 113
 114
 115 /* This should match linux gcc cdecl semantics everywhere, so that we
 116  * just codegen one calling convention on all platforms.
 117  */
 118 #ifdef _MSC_VER
 119 #define PIPE_CDECL __cdecl
 120 #else
 121 #define PIPE_CDECL
 122 #endif
 123
 124
 125
 126 #if defined(__GNUC__)
 127 #define PIPE_DEPRECATED  __attribute__((__deprecated__))
 128 #else
 129 #define PIPE_DEPRECATED
 130 #endif
 131
 132
 133
 134 /* Macros for data alignment. */
 135 #if defined(__GNUC__)
 136
 137 /* See http://gcc.gnu.org/onlinedocs/gcc-4.4.2/gcc/Type-Attributes.html */
 138 #define PIPE_ALIGN_TYPE(_alignment, _type) _type __attribute__((aligned(_alignment)))
 139
 140 /* See http://gcc.gnu.org/onlinedocs/gcc-4.4.2/gcc/Variable-Attributes.html */
 141 #define PIPE_ALIGN_VAR(_alignment) __attribute__((aligned(_alignment)))
 142
 143 #if defined(__GNUC__) && !defined(PIPE_ARCH_X86_64)
 144 #define PIPE_ALIGN_STACK __attribute__((force_align_arg_pointer))
 145 #else
 146 #define PIPE_ALIGN_STACK
 147 #endif
 148
 149 #elif defined(_MSC_VER)
 150
 151 /* See http://msdn.microsoft.com/en-us/library/83ythb65.aspx */
 152 #define PIPE_ALIGN_TYPE(_alignment, _type) __declspec(align(_alignment)) _type
 153 #define PIPE_ALIGN_VAR(_alignment) __declspec(align(_alignment))
 154
 155 #define PIPE_ALIGN_STACK
 156
 157 #elif defined(SWIG)
 158
 159 #define PIPE_ALIGN_TYPE(_alignment, _type) _type
 160 #define PIPE_ALIGN_VAR(_alignment)
 161
 162 #define PIPE_ALIGN_STACK
 163
 164 #else
 165
 166 #error "Unsupported compiler"
 167
 168 #endif
 169
 170
 171 #if defined(__GNUC__)
 172
 173 #define PIPE_READ_WRITE_BARRIER() __asm__("":::"memory")
 174
 175 #elif defined(_MSC_VER)
 176
 177 void _ReadWriteBarrier(void);
 178 #pragma intrinsic(_ReadWriteBarrier)
 179 #define PIPE_READ_WRITE_BARRIER() _ReadWriteBarrier()
 180
 181 #else
 182
 183 #warning "Unsupported compiler"
 184 #define PIPE_READ_WRITE_BARRIER() /* */
 185
 186 #endif
 187
 188 #if defined(__cplusplus)
 189 }
 190 #endif
 191
 192
 193 #endif /* P_COMPILER_H */