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Move CPU manufacturer code into unnamed namespace

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This commit is contained in:
Jeffrey Walton 2020-02-07 16:53:22 -05:00
parent dd67e1eee4
commit 1ccf9d5ab3
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GPG Key ID: B36AB348921B1838
1 changed files with 82 additions and 77 deletions
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159
cpu.cpp
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@ -64,8 +64,69 @@ extern "C" unsigned long long __fastcall XGETBV64(unsigned int);
extern "C" unsigned long long __fastcall CPUID64(unsigned int, unsigned int, unsigned int*);
#endif
#ifndef CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY
extern "C" {
typedef void (*SigHandler)(int);
}
extern "C"
{
static jmp_buf s_jmpNoCPUID;
static void SigIllHandlerCPUID(int unused)
{
CRYPTOPP_UNUSED(unused);
longjmp(s_jmpNoCPUID, 1);
}
}
#endif // Not CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY
ANONYMOUS_NAMESPACE_BEGIN
#if (CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64)
using CryptoPP::word32;
inline bool IsIntel(const word32 output[4])
{
// This is the "GenuineIntel" string
return (output[1] /*EBX*/ == 0x756e6547) &&
(output[2] /*ECX*/ == 0x6c65746e) &&
(output[3] /*EDX*/ == 0x49656e69);
}
inline bool IsAMD(const word32 output[4])
{
// This is the "AuthenticAMD" string.
return ((output[1] /*EBX*/ == 0x68747541) &&
(output[2] /*ECX*/ == 0x444D4163) &&
(output[3] /*EDX*/ == 0x69746E65)) ||
// Some early K5's can return "AMDisbetter!"
((output[1] /*EBX*/ == 0x69444d41) &&
(output[2] /*ECX*/ == 0x74656273) &&
(output[3] /*EDX*/ == 0x21726574));
}
inline bool IsHygon(const word32 output[4])
{
// This is the "HygonGenuine" string.
return (output[1] /*EBX*/ == 0x6f677948) &&
(output[2] /*ECX*/ == 0x656e6975) &&
(output[3] /*EDX*/ == 0x6e65476e);
}
inline bool IsVIA(const word32 output[4])
{
// This is the "CentaurHauls" string.
return ((output[1] /*EBX*/ == 0x746e6543) &&
(output[2] /*ECX*/ == 0x736c7561) &&
(output[3] /*EDX*/ == 0x48727561)) ||
// Some non-PadLock's return "VIA VIA VIA "
((output[1] /*EBX*/ == 0x32414956) &&
(output[2] /*ECX*/ == 0x32414956) &&
(output[3] /*EDX*/ == 0x32414956));
}
#endif // X86, X32 and X64
#if defined(__APPLE__)
enum {PowerMac=1, Mac, iPhone, iPod, iPad, AppleTV, AppleWatch};
void GetAppleMachineInfo(unsigned int& device, unsigned int& version)
@ -122,26 +183,31 @@ ANONYMOUS_NAMESPACE_END
NAMESPACE_BEGIN(CryptoPP)
#ifndef CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY
extern "C" {
typedef void (*SigHandler)(int);
}
extern "C"
{
static jmp_buf s_jmpNoCPUID;
static void SigIllHandlerCPUID(int unused)
{
CRYPTOPP_UNUSED(unused);
longjmp(s_jmpNoCPUID, 1);
}
}
#endif // Not CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY
// *************************** IA-32 CPUs ***************************
#if (CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64)
bool CRYPTOPP_SECTION_INIT g_x86DetectionDone = false;
bool CRYPTOPP_SECTION_INIT g_hasSSE2 = false;
bool CRYPTOPP_SECTION_INIT g_hasSSSE3 = false;
bool CRYPTOPP_SECTION_INIT g_hasSSE41 = false;
bool CRYPTOPP_SECTION_INIT g_hasSSE42 = false;
bool CRYPTOPP_SECTION_INIT g_hasAVX = false;
bool CRYPTOPP_SECTION_INIT g_hasAVX2 = false;
bool CRYPTOPP_SECTION_INIT g_hasAESNI = false;
bool CRYPTOPP_SECTION_INIT g_hasCLMUL = false;
bool CRYPTOPP_SECTION_INIT g_hasADX = false;
bool CRYPTOPP_SECTION_INIT g_hasSHA = false;
bool CRYPTOPP_SECTION_INIT g_hasRDRAND = false;
bool CRYPTOPP_SECTION_INIT g_hasRDSEED = false;
bool CRYPTOPP_SECTION_INIT g_isP4 = false;
bool CRYPTOPP_SECTION_INIT g_hasPadlockRNG = false;
bool CRYPTOPP_SECTION_INIT g_hasPadlockACE = false;
bool CRYPTOPP_SECTION_INIT g_hasPadlockACE2 = false;
bool CRYPTOPP_SECTION_INIT g_hasPadlockPHE = false;
bool CRYPTOPP_SECTION_INIT g_hasPadlockPMM = false;
word32 CRYPTOPP_SECTION_INIT g_cacheLineSize = CRYPTOPP_L1_CACHE_LINE_SIZE;
extern bool CPU_ProbeSSE2();
// No inline due to Borland/Embarcadero and Issue 498
@ -235,67 +301,6 @@ bool CpuId(word32 func, word32 subfunc, word32 output[4])
#endif
}
bool CRYPTOPP_SECTION_INIT g_x86DetectionDone = false;
bool CRYPTOPP_SECTION_INIT g_hasSSE2 = false;
bool CRYPTOPP_SECTION_INIT g_hasSSSE3 = false;
bool CRYPTOPP_SECTION_INIT g_hasSSE41 = false;
bool CRYPTOPP_SECTION_INIT g_hasSSE42 = false;
bool CRYPTOPP_SECTION_INIT g_hasAVX = false;
bool CRYPTOPP_SECTION_INIT g_hasAVX2 = false;
bool CRYPTOPP_SECTION_INIT g_hasAESNI = false;
bool CRYPTOPP_SECTION_INIT g_hasCLMUL = false;
bool CRYPTOPP_SECTION_INIT g_hasADX = false;
bool CRYPTOPP_SECTION_INIT g_hasSHA = false;
bool CRYPTOPP_SECTION_INIT g_hasRDRAND = false;
bool CRYPTOPP_SECTION_INIT g_hasRDSEED = false;
bool CRYPTOPP_SECTION_INIT g_isP4 = false;
bool CRYPTOPP_SECTION_INIT g_hasPadlockRNG = false;
bool CRYPTOPP_SECTION_INIT g_hasPadlockACE = false;
bool CRYPTOPP_SECTION_INIT g_hasPadlockACE2 = false;
bool CRYPTOPP_SECTION_INIT g_hasPadlockPHE = false;
bool CRYPTOPP_SECTION_INIT g_hasPadlockPMM = false;
word32 CRYPTOPP_SECTION_INIT g_cacheLineSize = CRYPTOPP_L1_CACHE_LINE_SIZE;
static inline bool IsIntel(const word32 output[4])
{
// This is the "GenuineIntel" string
return (output[1] /*EBX*/ == 0x756e6547) &&
(output[2] /*ECX*/ == 0x6c65746e) &&
(output[3] /*EDX*/ == 0x49656e69);
}
static inline bool IsAMD(const word32 output[4])
{
// This is the "AuthenticAMD" string.
return ((output[1] /*EBX*/ == 0x68747541) &&
(output[2] /*ECX*/ == 0x444D4163) &&
(output[3] /*EDX*/ == 0x69746E65)) ||
// Some early K5's can return "AMDisbetter!"
((output[1] /*EBX*/ == 0x69444d41) &&
(output[2] /*ECX*/ == 0x74656273) &&
(output[3] /*EDX*/ == 0x21726574));
}
static inline bool IsHygon(const word32 output[4])
{
// This is the "HygonGenuine" string.
return (output[1] /*EBX*/ == 0x6f677948) &&
(output[2] /*ECX*/ == 0x656e6975) &&
(output[3] /*EDX*/ == 0x6e65476e);
}
static inline bool IsVIA(const word32 output[4])
{
// This is the "CentaurHauls" string.
return ((output[1] /*EBX*/ == 0x746e6543) &&
(output[2] /*ECX*/ == 0x736c7561) &&
(output[3] /*EDX*/ == 0x48727561)) ||
// Some non-PadLock's return "VIA VIA VIA "
((output[1] /*EBX*/ == 0x32414956) &&
(output[2] /*ECX*/ == 0x32414956) &&
(output[3] /*EDX*/ == 0x32414956));
}
void DetectX86Features()
{
// Coverity finding CID 171239. Initialize arrays.