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      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 #ifndef __STDC_LIMIT_MACROS
     64 #define __STDC_LIMIT_MACROS 1
     65 #endif
     66 #include <stdint.h>
     67 #include <stdbool.h>
     68 
     69 
     70 #ifdef __cplusplus
     71 extern "C" {
     72 #endif
     73 
     74 
     75 #if !defined(__HAIKU__) && !defined(__USE_MISC)
     76 #if !defined(PIPE_OS_ANDROID)
     77 typedef unsigned int       uint;
     78 #endif
     79 typedef unsigned short     ushort;
     80 #endif
     81 typedef unsigned char      ubyte;
     82 
     83 typedef unsigned char boolean;
     84 #ifndef TRUE
     85 #define TRUE  true
     86 #endif
     87 #ifndef FALSE
     88 #define FALSE false
     89 #endif
     90 
     91 #ifndef va_copy
     92 #ifdef __va_copy
     93 #define va_copy(dest, src) __va_copy((dest), (src))
     94 #else
     95 #define va_copy(dest, src) (dest) = (src)
     96 #endif
     97 #endif
     98 
     99 /* Forced function inlining */
    100 #ifndef ALWAYS_INLINE
    101 #  ifdef __GNUC__
    102 #    define ALWAYS_INLINE inline __attribute__((always_inline))
    103 #  elif defined(_MSC_VER)
    104 #    define ALWAYS_INLINE __forceinline
    105 #  else
    106 #    define ALWAYS_INLINE inline
    107 #  endif
    108 #endif
    109 
    110 
    111 /* XXX: Use standard `__func__` instead */
    112 #ifndef __FUNCTION__
    113 #  define __FUNCTION__ __func__
    114 #endif
    115 
    116 
    117 /* This should match linux gcc cdecl semantics everywhere, so that we
    118  * just codegen one calling convention on all platforms.
    119  */
    120 #ifdef _MSC_VER
    121 #define PIPE_CDECL __cdecl
    122 #else
    123 #define PIPE_CDECL
    124 #endif
    125 
    126 
    127 
    128 #if defined(__GNUC__)
    129 #define PIPE_DEPRECATED  __attribute__((__deprecated__))
    130 #else
    131 #define PIPE_DEPRECATED
    132 #endif
    133 
    134 
    135 
    136 /* Macros for data alignment. */
    137 #if defined(__GNUC__)
    138 
    139 /* See http://gcc.gnu.org/onlinedocs/gcc-4.4.2/gcc/Type-Attributes.html */
    140 #define PIPE_ALIGN_TYPE(_alignment, _type) _type __attribute__((aligned(_alignment)))
    141 
    142 /* See http://gcc.gnu.org/onlinedocs/gcc-4.4.2/gcc/Variable-Attributes.html */
    143 #define PIPE_ALIGN_VAR(_alignment) __attribute__((aligned(_alignment)))
    144 
    145 #if defined(__GNUC__) && !defined(PIPE_ARCH_X86_64)
    146 #define PIPE_ALIGN_STACK __attribute__((force_align_arg_pointer))
    147 #else
    148 #define PIPE_ALIGN_STACK
    149 #endif
    150 
    151 #elif defined(_MSC_VER)
    152 
    153 /* See http://msdn.microsoft.com/en-us/library/83ythb65.aspx */
    154 #define PIPE_ALIGN_TYPE(_alignment, _type) __declspec(align(_alignment)) _type
    155 #define PIPE_ALIGN_VAR(_alignment) __declspec(align(_alignment))
    156 
    157 #define PIPE_ALIGN_STACK
    158 
    159 #elif defined(SWIG)
    160 
    161 #define PIPE_ALIGN_TYPE(_alignment, _type) _type
    162 #define PIPE_ALIGN_VAR(_alignment)
    163 
    164 #define PIPE_ALIGN_STACK
    165 
    166 #else
    167 
    168 #error "Unsupported compiler"
    169 
    170 #endif
    171 
    172 
    173 #if defined(__GNUC__)
    174 
    175 #define PIPE_READ_WRITE_BARRIER() __asm__("":::"memory")
    176 
    177 #elif defined(_MSC_VER)
    178 
    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 */
    194