arne
/
cryptopp
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Move from 'static' to 'enum' for class constants 

Enums don't take up space in class objects. Its should result in smaller objects and faster code
pull/461/head
Jeffrey Walton 2017-08-11 17:13:15 -04:00
parent 173dd0b530
commit 953252e44d
No known key found for this signature in database
GPG Key ID: B36AB348921B1838
3 changed files with 67 additions and 68 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
config.h
View File

@ -490,7 +490,7 @@ NAMESPACE_END
// Microsoft plans to support ARM-64, but its not clear how to detect it. // Microsoft plans to support ARM-64, but its not clear how to detect it.
// TODO: Add MSC_VER and ARM-64 platform define when available // TODO: Add MSC_VER and ARM-64 platform define when available
#if !defined(CRYPTOPP_BOOL_ARM_CRYPTO_INTRINSICS_AVAILABLE) && !defined(CRYPTOPP_DISABLE_ASM) #if !defined(CRYPTOPP_BOOL_ARM_CRYPTO_INTRINSICS_AVAILABLE) && !defined(CRYPTOPP_DISABLE_ASM)
# if defined(__ARM_FEATURE_CRYPTO) # if defined(__ARM_FEATURE_CRYPTO) || (CRYPTOPP_MSC_VERSION >= 1910)
# define CRYPTOPP_BOOL_ARM_CRYPTO_INTRINSICS_AVAILABLE 1 # define CRYPTOPP_BOOL_ARM_CRYPTO_INTRINSICS_AVAILABLE 1
# endif # endif
#endif #endif
@ -530,11 +530,12 @@ NAMESPACE_END
#endif #endif
// How to declare class constants // How to declare class constants
#if (_MSC_VER == 1300) || defined(__INTEL_COMPILER) || defined(__BORLANDC__) //#if (_MSC_VER == 1300) || defined(__INTEL_COMPILER) || defined(__BORLANDC__)
//# define CRYPTOPP_CONSTANT(x) enum {x};
//#else
//# define CRYPTOPP_CONSTANT(x) static const int x;
//#endif
#define CRYPTOPP_CONSTANT(x) enum {x}; #define CRYPTOPP_CONSTANT(x) enum {x};
#else
# define CRYPTOPP_CONSTANT(x) static const int x;
#endif
// Linux provides X32, which is 32-bit integers, longs and pointers on x86_64 using the full x86_64 register set. // Linux provides X32, which is 32-bit integers, longs and pointers on x86_64 using the full x86_64 register set.
// Detect via __ILP32__ (http://wiki.debian.org/X32Port). However, __ILP32__ shows up in more places than // Detect via __ILP32__ (http://wiki.debian.org/X32Port). However, __ILP32__ shows up in more places than

118
cpu.cpp
View File

@ -219,90 +219,88 @@ static inline bool IsVIA(const word32 output[4])
void DetectX86Features() void DetectX86Features()
{ {
// Coverity finding CID 171239... // Coverity finding CID 171239...
word32 cpuid1[4]={0}, cpuid2[4]={0}, cpuid3[4]={0}; word32 cpuid0[4]={0}, cpuid1[4]={0}, cpuid2[4]={0};
if (!CpuId(0, cpuid1)) if (!CpuId(0, cpuid0))
return; return;
if (!CpuId(1, cpuid2)) if (!CpuId(1, cpuid1))
return; return;
g_hasMMX = (cpuid2[3] & (1 << 23)) != 0; g_hasMMX = (cpuid1[3] & (1 << 23)) != 0;
if ((cpuid2[3] & (1 << 26)) != 0) if ((cpuid1[3] & (1 << 26)) != 0)
g_hasSSE2 = TrySSE2(); g_hasSSE2 = TrySSE2();
g_hasSSSE3 = g_hasSSE2 && (cpuid2[2] & (1<<9)); g_hasSSSE3 = g_hasSSE2 && (cpuid1[2] & (1<<9));
g_hasSSE4 = g_hasSSE2 && ((cpuid2[2] & (1<<19)) && (cpuid2[2] & (1<<20))); g_hasSSE4 = g_hasSSE2 && ((cpuid1[2] & (1<<19)) && (cpuid1[2] & (1<<20)));
g_hasAESNI = g_hasSSE2 && (cpuid2[2] & (1<<25)); g_hasAESNI = g_hasSSE2 && (cpuid1[2] & (1<<25));
g_hasCLMUL = g_hasSSE2 && (cpuid2[2] & (1<<1)); g_hasCLMUL = g_hasSSE2 && (cpuid1[2] & (1<<1));
if ((cpuid2[3] & (1 << 25)) != 0) if ((cpuid1[3] & (1 << 25)) != 0)
g_hasISSE = true; g_hasISSE = true;
else else
{ {
CpuId(0x080000000, cpuid3); CpuId(0x080000000, cpuid2);
if (cpuid3[0] >= 0x080000001) if (cpuid2[0] >= 0x080000001)
{ {
CpuId(0x080000001, cpuid3); CpuId(0x080000001, cpuid2);
g_hasISSE = (cpuid3[3] & (1 << 22)) != 0; g_hasISSE = (cpuid2[3] & (1 << 22)) != 0;
} }
} }
if (IsIntel(cpuid1)) if (IsIntel(cpuid0))
{ {
static const unsigned int RDRAND_FLAG = (1 << 30); enum { RDRAND_FLAG = (1 << 30) };
static const unsigned int RDSEED_FLAG = (1 << 18); enum { RDSEED_FLAG = (1 << 18) };
static const unsigned int SHA_FLAG = (1 << 29); enum { SHA_FLAG = (1 << 29) };
g_isP4 = ((cpuid2[0] >> 8) & 0xf) == 0xf; g_isP4 = ((cpuid1[0] >> 8) & 0xf) == 0xf;
g_cacheLineSize = 8 * GETBYTE(cpuid2[1], 1); g_cacheLineSize = 8 * GETBYTE(cpuid1[1], 1);
g_hasRDRAND = !!(cpuid2[2] /*ECX*/ & RDRAND_FLAG);
if (cpuid1[0] /*EAX*/ >= 7)
{
if (CpuId(7, cpuid3))
{
g_hasRDSEED = !!(cpuid3[1] /*EBX*/ & RDSEED_FLAG);
g_hasSHA = !!(cpuid3[1] /*EBX*/ & SHA_FLAG);
}
}
}
else if (IsAMD(cpuid1))
{
static const unsigned int RDRAND_FLAG = (1 << 30);
static const unsigned int RDSEED_FLAG = (1 << 18);
static const unsigned int SHA_FLAG = (1 << 29);
CpuId(0x01, cpuid1);
g_hasRDRAND = !!(cpuid1[2] /*ECX*/ & RDRAND_FLAG); g_hasRDRAND = !!(cpuid1[2] /*ECX*/ & RDRAND_FLAG);
if (cpuid1[0] /*EAX*/ >= 7) if (cpuid0[0] /*EAX*/ >= 7)
{ {
if (CpuId(7, cpuid3)) if (CpuId(7, cpuid2))
{ {
g_hasRDSEED = !!(cpuid3[1] /*EBX*/ & RDSEED_FLAG); g_hasRDSEED = !!(cpuid2[1] /*EBX*/ & RDSEED_FLAG);
g_hasSHA = !!(cpuid3[1] /*EBX*/ & SHA_FLAG); g_hasSHA = !!(cpuid2[1] /*EBX*/ & SHA_FLAG);
} }
} }
}
else if (IsAMD(cpuid0))
{
enum { RDRAND_FLAG = (1 << 30) };
enum { RDSEED_FLAG = (1 << 18) };
enum { SHA_FLAG = (1 << 29) };
CpuId(0x80000005, cpuid1); CpuId(0x80000005, cpuid2);
g_cacheLineSize = GETBYTE(cpuid1[2], 0); g_cacheLineSize = GETBYTE(cpuid2[2], 0);
} g_hasRDRAND = !!(cpuid1[2] /*ECX*/ & RDRAND_FLAG);
else if (IsVIA(cpuid1))
{
static const unsigned int RNG_FLAGS = (0x3 << 2);
static const unsigned int ACE_FLAGS = (0x3 << 6);
static const unsigned int ACE2_FLAGS = (0x3 << 8);
static const unsigned int PHE_FLAGS = (0x3 << 10);
static const unsigned int PMM_FLAGS = (0x3 << 12);
CpuId(0xC0000000, cpuid1); if (cpuid0[0] /*EAX*/ >= 7)
if (cpuid1[0] >= 0xC0000001) {
if (CpuId(7, cpuid2))
{
g_hasRDSEED = !!(cpuid2[1] /*EBX*/ & RDSEED_FLAG);
g_hasSHA = !!(cpuid2[1] /*EBX*/ & SHA_FLAG);
}
}
}
else if (IsVIA(cpuid0))
{
enum { RNG_FLAGS = (0x3 << 2) };
enum { ACE_FLAGS = (0x3 << 6) };
enum { ACE2_FLAGS = (0x3 << 8) };
enum { PHE_FLAGS = (0x3 << 10) };
enum { PMM_FLAGS = (0x3 << 12) };
CpuId(0xC0000000, cpuid0);
if (cpuid0[0] >= 0xC0000001)
{ {
// Extended features available // Extended features available
CpuId(0xC0000001, cpuid1); CpuId(0xC0000001, cpuid0);
g_hasPadlockRNG = !!(cpuid1[3] /*EDX*/ & RNG_FLAGS); g_hasPadlockRNG = !!(cpuid0[3] /*EDX*/ & RNG_FLAGS);
g_hasPadlockACE = !!(cpuid1[3] /*EDX*/ & ACE_FLAGS); g_hasPadlockACE = !!(cpuid0[3] /*EDX*/ & ACE_FLAGS);
g_hasPadlockACE2 = !!(cpuid1[3] /*EDX*/ & ACE2_FLAGS); g_hasPadlockACE2 = !!(cpuid0[3] /*EDX*/ & ACE2_FLAGS);
g_hasPadlockPHE = !!(cpuid1[3] /*EDX*/ & PHE_FLAGS); g_hasPadlockPHE = !!(cpuid0[3] /*EDX*/ & PHE_FLAGS);
g_hasPadlockPMM = !!(cpuid1[3] /*EDX*/ & PMM_FLAGS); g_hasPadlockPMM = !!(cpuid0[3] /*EDX*/ & PMM_FLAGS);
} }
} }

6
validat1.cpp
View File

@ -342,7 +342,6 @@ bool TestSettings()
std::cout << std::endl; std::cout << std::endl;
#ifdef CRYPTOPP_CPUID_AVAILABLE #ifdef CRYPTOPP_CPUID_AVAILABLE
bool hasISSE = HasISSE();
bool hasSSE2 = HasSSE2(); bool hasSSE2 = HasSSE2();
bool hasSSSE3 = HasSSSE3(); bool hasSSSE3 = HasSSSE3();
bool hasSSE4 = HasSSE4(); bool hasSSE4 = HasSSE4();
@ -357,8 +356,9 @@ bool TestSettings()
else else
std::cout << "passed: "; std::cout << "passed: ";
std::cout << "hasISSE == " << hasISSE << "hasSSE2 == " << hasSSE2 << ", hasSSSE3 == " << hasSSSE3 << ", hasSSE4 == " << hasSSE4; std::cout << "hasSSE2 == " << hasSSE2 << ", hasSSSE3 == " << hasSSSE3 << ", hasSSE4 == " << hasSSE4;
std::cout << ", hasAESNI == " << HasAESNI() << ", hasCLMUL == " << HasCLMUL() << ", hasRDRAND == " << HasRDRAND() << ", hasRDSEED == " << HasRDSEED(); std::cout << ", hasAESNI == " << HasAESNI() << ", hasCLMUL == " << HasCLMUL();
std::cout << ", hasRDRAND == " << HasRDRAND() << ", hasRDSEED == " << HasRDSEED();
std::cout << ", hasSHA == " << HasSHA() << ", isP4 == " << isP4 << ", cacheLineSize == " << cacheLineSize << std::endl; std::cout << ", hasSHA == " << HasSHA() << ", isP4 == " << isP4 << ", cacheLineSize == " << cacheLineSize << std::endl;
#elif (CRYPTOPP_BOOL_ARM32 || CRYPTOPP_BOOL_ARM64) #elif (CRYPTOPP_BOOL_ARM32 || CRYPTOPP_BOOL_ARM64)