BaseTools/Source/C/LzmaCompress/Sdk/C/CpuArch.h

   1 /* CpuArch.h -- CPU specific code
   2 2016-06-09: Igor Pavlov : Public domain */
   3
   4 #ifndef __CPU_ARCH_H
   5 #define __CPU_ARCH_H
   6
   7 #include "7zTypes.h"
   8
   9 EXTERN_C_BEGIN
  10
  11 /*
  12 MY_CPU_LE means that CPU is LITTLE ENDIAN.
  13 MY_CPU_BE means that CPU is BIG ENDIAN.
  14 If MY_CPU_LE and MY_CPU_BE are not defined, we don't know about ENDIANNESS of platform.
  15
  16 MY_CPU_LE_UNALIGN means that CPU is LITTLE ENDIAN and CPU supports unaligned memory accesses.
  17 */
  18
  19 #if defined(_M_X64) \
  20    || defined(_M_AMD64) \
  21    || defined(__x86_64__) \
  22    || defined(__AMD64__) \
  23    || defined(__amd64__)
  24   #define MY_CPU_AMD64
  25 #endif
  26
  27 #if defined(MY_CPU_AMD64) \
  28     || defined(_M_IA64) \
  29     || defined(__AARCH64EL__) \
  30     || defined(__AARCH64EB__)
  31   #define MY_CPU_64BIT
  32 #endif
  33
  34 #if defined(_M_IX86) || defined(__i386__)
  35 #define MY_CPU_X86
  36 #endif
  37
  38 #if defined(MY_CPU_X86) || defined(MY_CPU_AMD64)
  39 #define MY_CPU_X86_OR_AMD64
  40 #endif
  41
  42 #if defined(MY_CPU_X86) \
  43     || defined(_M_ARM) \
  44     || defined(__ARMEL__) \
  45     || defined(__THUMBEL__) \
  46     || defined(__ARMEB__) \
  47     || defined(__THUMBEB__)
  48   #define MY_CPU_32BIT
  49 #endif
  50
  51 #if defined(_WIN32) && defined(_M_ARM)
  52 #define MY_CPU_ARM_LE
  53 #endif
  54
  55 #if defined(_WIN32) && defined(_M_IA64)
  56 #define MY_CPU_IA64_LE
  57 #endif
  58
  59 #if defined(MY_CPU_X86_OR_AMD64) \
  60     || defined(MY_CPU_ARM_LE) \
  61     || defined(MY_CPU_IA64_LE) \
  62     || defined(__LITTLE_ENDIAN__) \
  63     || defined(__ARMEL__) \
  64     || defined(__THUMBEL__) \
  65     || defined(__AARCH64EL__) \
  66     || defined(__MIPSEL__) \
  67     || defined(__MIPSEL) \
  68     || defined(_MIPSEL) \
  69     || defined(__BFIN__) \
  70     || (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__))
  71   #define MY_CPU_LE
  72 #endif
  73
  74 #if defined(__BIG_ENDIAN__) \
  75     || defined(__ARMEB__) \
  76     || defined(__THUMBEB__) \
  77     || defined(__AARCH64EB__) \
  78     || defined(__MIPSEB__) \
  79     || defined(__MIPSEB) \
  80     || defined(_MIPSEB) \
  81     || defined(__m68k__) \
  82     || defined(__s390__) \
  83     || defined(__s390x__) \
  84     || defined(__zarch__) \
  85     || (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__))
  86   #define MY_CPU_BE
  87 #endif
  88
  89 #if defined(MY_CPU_LE) && defined(MY_CPU_BE)
  90 Stop_Compiling_Bad_Endian
  91 #endif
  92
  93
  94 #ifdef MY_CPU_LE
  95   #if defined(MY_CPU_X86_OR_AMD64) \
  96       /* || defined(__AARCH64EL__) */
  97     #define MY_CPU_LE_UNALIGN
  98   #endif
  99 #endif
 100
 101
 102 #ifdef MY_CPU_LE_UNALIGN
 103
 104 #define GetUi16(p) (*(const UInt16 *)(const void *)(p))
 105 #define GetUi32(p) (*(const UInt32 *)(const void *)(p))
 106 #define GetUi64(p) (*(const UInt64 *)(const void *)(p))
 107
 108 #define SetUi16(p, v) { *(UInt16 *)(p) = (v); }
 109 #define SetUi32(p, v) { *(UInt32 *)(p) = (v); }
 110 #define SetUi64(p, v) { *(UInt64 *)(p) = (v); }
 111
 112 #else
 113
 114 #define GetUi16(p) ( (UInt16) ( \
 115              ((const Byte *)(p))[0] | \
 116     ((UInt16)((const Byte *)(p))[1] << 8) ))
 117
 118 #define GetUi32(p) ( \
 119              ((const Byte *)(p))[0]        | \
 120     ((UInt32)((const Byte *)(p))[1] <<  8) | \
 121     ((UInt32)((const Byte *)(p))[2] << 16) | \
 122     ((UInt32)((const Byte *)(p))[3] << 24))
 123
 124 #define GetUi64(p) (GetUi32(p) | ((UInt64)GetUi32(((const Byte *)(p)) + 4) << 32))
 125
 126 #define SetUi16(p, v) { Byte *_ppp_ = (Byte *)(p); UInt32 _vvv_ = (v); \
 127     _ppp_[0] = (Byte)_vvv_; \
 128     _ppp_[1] = (Byte)(_vvv_ >> 8); }
 129
 130 #define SetUi32(p, v) { Byte *_ppp_ = (Byte *)(p); UInt32 _vvv_ = (v); \
 131     _ppp_[0] = (Byte)_vvv_; \
 132     _ppp_[1] = (Byte)(_vvv_ >> 8); \
 133     _ppp_[2] = (Byte)(_vvv_ >> 16); \
 134     _ppp_[3] = (Byte)(_vvv_ >> 24); }
 135
 136 #define SetUi64(p, v) { Byte *_ppp2_ = (Byte *)(p); UInt64 _vvv2_ = (v); \
 137     SetUi32(_ppp2_    , (UInt32)_vvv2_); \
 138     SetUi32(_ppp2_ + 4, (UInt32)(_vvv2_ >> 32)); }
 139
 140 #endif
 141
 142
 143 #if defined(MY_CPU_LE_UNALIGN) && /* defined(_WIN64) && */ (_MSC_VER >= 1300)
 144
 145 /* Note: we use bswap instruction, that is unsupported in 386 cpu */
 146
 147 #include <stdlib.h>
 148
 149 #pragma intrinsic(_byteswap_ulong)
 150 #pragma intrinsic(_byteswap_uint64)
 151 #define GetBe32(p) _byteswap_ulong(*(const UInt32 *)(const Byte *)(p))
 152 #define GetBe64(p) _byteswap_uint64(*(const UInt64 *)(const Byte *)(p))
 153
 154 #define SetBe32(p, v) (*(UInt32 *)(void *)(p)) = _byteswap_ulong(v)
 155
 156 #elif defined(MY_CPU_LE_UNALIGN) && defined (__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
 157
 158 #define GetBe32(p) __builtin_bswap32(*(const UInt32 *)(const Byte *)(p))
 159 #define GetBe64(p) __builtin_bswap64(*(const UInt64 *)(const Byte *)(p))
 160
 161 #define SetBe32(p, v) (*(UInt32 *)(void *)(p)) = __builtin_bswap32(v)
 162
 163 #else
 164
 165 #define GetBe32(p) ( \
 166     ((UInt32)((const Byte *)(p))[0] << 24) | \
 167     ((UInt32)((const Byte *)(p))[1] << 16) | \
 168     ((UInt32)((const Byte *)(p))[2] <<  8) | \
 169              ((const Byte *)(p))[3] )
 170
 171 #define GetBe64(p) (((UInt64)GetBe32(p) << 32) | GetBe32(((const Byte *)(p)) + 4))
 172
 173 #define SetBe32(p, v) { Byte *_ppp_ = (Byte *)(p); UInt32 _vvv_ = (v); \
 174     _ppp_[0] = (Byte)(_vvv_ >> 24); \
 175     _ppp_[1] = (Byte)(_vvv_ >> 16); \
 176     _ppp_[2] = (Byte)(_vvv_ >> 8); \
 177     _ppp_[3] = (Byte)_vvv_; }
 178
 179 #endif
 180
 181
 182 #define GetBe16(p) ( (UInt16) ( \
 183     ((UInt16)((const Byte *)(p))[0] << 8) | \
 184              ((const Byte *)(p))[1] ))
 185
 186
 187
 188 #ifdef MY_CPU_X86_OR_AMD64
 189
 190 typedef struct
 191 {
 192   UInt32 maxFunc;
 193   UInt32 vendor[3];
 194   UInt32 ver;
 195   UInt32 b;
 196   UInt32 c;
 197   UInt32 d;
 198 } Cx86cpuid;
 199
 200 enum
 201 {
 202   CPU_FIRM_INTEL,
 203   CPU_FIRM_AMD,
 204   CPU_FIRM_VIA
 205 };
 206
 207 void MyCPUID(UInt32 function, UInt32 *a, UInt32 *b, UInt32 *c, UInt32 *d);
 208
 209 Bool x86cpuid_CheckAndRead(Cx86cpuid *p);
 210 int x86cpuid_GetFirm(const Cx86cpuid *p);
 211
 212 #define x86cpuid_GetFamily(ver) (((ver >> 16) & 0xFF0) | ((ver >> 8) & 0xF))
 213 #define x86cpuid_GetModel(ver)  (((ver >> 12) &  0xF0) | ((ver >> 4) & 0xF))
 214 #define x86cpuid_GetStepping(ver) (ver & 0xF)
 215
 216 Bool CPU_Is_InOrder();
 217 Bool CPU_Is_Aes_Supported();
 218
 219 #endif
 220
 221 EXTERN_C_END
 222
 223 #endif