1086 lines
38 KiB
C
1086 lines
38 KiB
C
// cpu.h - originally written and placed in the public domain by Wei Dai
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// updated for ARM and PowerPC by Jeffrey Walton.
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// updated to split CPU_Query() and CPU_Probe() by Jeffrey Walton.
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/// \file cpu.h
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/// \brief Functions for CPU features and intrinsics
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/// \details The CPU functions are used in IA-32, ARM and PowerPC code paths. The
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/// functions provide cpu specific feature testing on IA-32, ARM and PowerPC machines.
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/// \details Feature detection uses CPUID on IA-32, like Intel and AMD. On other platforms
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/// a two-part strategy is used. First, the library attempts to *Query* the OS for a feature,
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/// like using Linux getauxval() or android_getCpuFeatures(). If that fails, then *Probe*
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/// the cpu executing an instruction and an observe a SIGILL if unsupported. The general
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/// pattern used by the library is:
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/// <pre>
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/// g_hasCRC32 = CPU_QueryCRC32() || CPU_ProbeCRC32();
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/// g_hasPMULL = CPU_QueryPMULL() || CPU_ProbePMULL();
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/// g_hasAES = CPU_QueryAES() || CPU_ProbeAES();
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/// </pre>
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/// \details Generally speaking, CPU_Query() is in the source file <tt>cpu.cpp</tt> because it
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/// does not require special architectural flags. CPU_Probe() is in a source file that receives
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/// architectural flags, like <tt>sse_simd.cpp</tt>, <tt>neon_simd.cpp</tt> and
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/// <tt>ppc_simd.cpp</tt>. For example, compiling <tt>neon_simd.cpp</tt> on an ARM64 machine will
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/// have <tt>-march=armv8-a</tt> applied during a compile to make the instruction set architecture
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/// (ISA) available.
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/// \details The cpu probes are expensive when compared to a standard OS feature query. The library
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/// also avoids probes on Apple platforms because Apple's signal handling for SIGILLs appears to
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/// corrupt memory. CPU_Probe() will unconditionally return false for Apple platforms. OpenSSL
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/// experienced the same problem and moved away from SIGILL probes on Apple.
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#ifndef CRYPTOPP_CPU_H
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#define CRYPTOPP_CPU_H
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#include "config.h"
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// Issue 340
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#if CRYPTOPP_GCC_DIAGNOSTIC_AVAILABLE
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# pragma GCC diagnostic push
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# pragma GCC diagnostic ignored "-Wconversion"
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# pragma GCC diagnostic ignored "-Wsign-conversion"
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#endif
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// Applies to both X86/X32/X64 and ARM32/ARM64
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#if defined(CRYPTOPP_LLVM_CLANG_VERSION) || defined(CRYPTOPP_APPLE_CLANG_VERSION)
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#define NEW_LINE "\n"
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#define INTEL_PREFIX ".intel_syntax;"
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#define INTEL_NOPREFIX ".intel_syntax;"
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#define ATT_PREFIX ".att_syntax;"
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#define ATT_NOPREFIX ".att_syntax;"
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#elif defined(__GNUC__)
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#define NEW_LINE
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#define INTEL_PREFIX ".intel_syntax prefix;"
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#define INTEL_NOPREFIX ".intel_syntax noprefix;"
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#define ATT_PREFIX ".att_syntax prefix;"
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#define ATT_NOPREFIX ".att_syntax noprefix;"
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#else
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#define NEW_LINE
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#define INTEL_PREFIX
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#define INTEL_NOPREFIX
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#define ATT_PREFIX
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#define ATT_NOPREFIX
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#endif
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#ifdef CRYPTOPP_GENERATE_X64_MASM
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#define CRYPTOPP_X86_ASM_AVAILABLE
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#define CRYPTOPP_BOOL_X64 1
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#define CRYPTOPP_SSE2_ASM_AVAILABLE 1
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#define NAMESPACE_END
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#else
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NAMESPACE_BEGIN(CryptoPP)
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// ***************************** IA-32 ***************************** //
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#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64 || CRYPTOPP_DOXYGEN_PROCESSING
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#define CRYPTOPP_CPUID_AVAILABLE 1
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// Hide from Doxygen
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#ifndef CRYPTOPP_DOXYGEN_PROCESSING
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// These should not be used directly
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extern CRYPTOPP_DLL bool g_x86DetectionDone;
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extern CRYPTOPP_DLL bool g_hasSSE2;
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extern CRYPTOPP_DLL bool g_hasSSSE3;
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extern CRYPTOPP_DLL bool g_hasSSE41;
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extern CRYPTOPP_DLL bool g_hasSSE42;
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extern CRYPTOPP_DLL bool g_hasMOVBE;
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extern CRYPTOPP_DLL bool g_hasAESNI;
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extern CRYPTOPP_DLL bool g_hasCLMUL;
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extern CRYPTOPP_DLL bool g_hasAVX;
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extern CRYPTOPP_DLL bool g_hasAVX2;
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extern CRYPTOPP_DLL bool g_hasSHA;
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extern CRYPTOPP_DLL bool g_hasADX;
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extern CRYPTOPP_DLL bool g_isP4;
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extern CRYPTOPP_DLL bool g_hasRDRAND;
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extern CRYPTOPP_DLL bool g_hasRDSEED;
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extern CRYPTOPP_DLL bool g_hasPadlockRNG;
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extern CRYPTOPP_DLL bool g_hasPadlockACE;
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extern CRYPTOPP_DLL bool g_hasPadlockACE2;
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extern CRYPTOPP_DLL bool g_hasPadlockPHE;
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extern CRYPTOPP_DLL bool g_hasPadlockPMM;
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extern CRYPTOPP_DLL word32 g_cacheLineSize;
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CRYPTOPP_DLL void CRYPTOPP_API DetectX86Features();
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CRYPTOPP_DLL bool CRYPTOPP_API CpuId(word32 func, word32 subfunc, word32 output[4]);
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#endif // CRYPTOPP_DOXYGEN_PROCESSING
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/// \name IA-32 CPU FEATURES
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//@{
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/// \brief Determine SSE2 availability
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/// \return true if SSE2 is determined to be available, false otherwise
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/// \details MMX, SSE and SSE2 are core processor features for x86_64, and
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/// the function return value is based on OSXSAVE. On i386 both
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/// SSE2 and OSXSAVE are used for the return value.
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/// \note This function is only available on Intel IA-32 platforms
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inline bool HasSSE2()
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{
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#if (CRYPTOPP_SSE2_ASM_AVAILABLE || CRYPTOPP_SSE2_INTRIN_AVAILABLE)
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasSSE2;
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#else
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return false;
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#endif
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}
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/// \brief Determine SSSE3 availability
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/// \return true if SSSE3 is determined to be available, false otherwise
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/// \details HasSSSE3() is a runtime check performed using CPUID
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/// \note This function is only available on Intel IA-32 platforms
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inline bool HasSSSE3()
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{
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#if CRYPTOPP_SSSE3_AVAILABLE
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasSSSE3;
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#else
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return false;
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#endif
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}
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/// \brief Determine SSE4.1 availability
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/// \return true if SSE4.1 is determined to be available, false otherwise
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/// \details HasSSE41() is a runtime check performed using CPUID
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/// \note This function is only available on Intel IA-32 platforms
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inline bool HasSSE41()
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{
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#if CRYPTOPP_SSE41_AVAILABLE
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasSSE41;
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#else
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return false;
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#endif
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}
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/// \brief Determine SSE4.2 availability
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/// \return true if SSE4.2 is determined to be available, false otherwise
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/// \details HasSSE42() is a runtime check performed using CPUID
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/// \note This function is only available on Intel IA-32 platforms
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inline bool HasSSE42()
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{
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#if CRYPTOPP_SSE42_AVAILABLE
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasSSE42;
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#else
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return false;
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#endif
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}
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/// \brief Determine MOVBE availability
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/// \return true if MOVBE is determined to be available, false otherwise
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/// \details HasMOVBE() is a runtime check performed using CPUID
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/// \since Crypto++ 8.3
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/// \note This function is only available on Intel IA-32 platforms
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inline bool HasMOVBE()
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{
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#if CRYPTOPP_SSE42_AVAILABLE
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasMOVBE;
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#else
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return false;
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#endif
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}
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/// \brief Determine AES-NI availability
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/// \return true if AES-NI is determined to be available, false otherwise
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/// \details HasAESNI() is a runtime check performed using CPUID
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/// \since Crypto++ 5.6.1
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/// \note This function is only available on Intel IA-32 platforms
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inline bool HasAESNI()
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{
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#if CRYPTOPP_AESNI_AVAILABLE
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasAESNI;
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#else
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return false;
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#endif
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}
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/// \brief Determine Carryless Multiply availability
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/// \return true if pclmulqdq is determined to be available, false otherwise
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/// \details HasCLMUL() is a runtime check performed using CPUID
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/// \since Crypto++ 5.6.1
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/// \note This function is only available on Intel IA-32 platforms
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inline bool HasCLMUL()
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{
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#if CRYPTOPP_CLMUL_AVAILABLE
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasCLMUL;
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#else
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return false;
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#endif
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}
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/// \brief Determine SHA availability
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/// \return true if SHA is determined to be available, false otherwise
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/// \details HasSHA() is a runtime check performed using CPUID
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/// \since Crypto++ 6.0
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/// \note This function is only available on Intel IA-32 platforms
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inline bool HasSHA()
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{
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#if CRYPTOPP_SHANI_AVAILABLE
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasSHA;
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#else
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return false;
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#endif
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}
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/// \brief Determine ADX availability
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/// \return true if ADX is determined to be available, false otherwise
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/// \details HasADX() is a runtime check performed using CPUID
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/// \since Crypto++ 7.0
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/// \note This function is only available on Intel IA-32 platforms
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inline bool HasADX()
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{
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#if CRYPTOPP_ADX_AVAILABLE
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasADX;
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#else
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return false;
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#endif
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}
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/// \brief Determine AVX availability
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/// \return true if AVX is determined to be available, false otherwise
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/// \details HasAVX() is a runtime check performed using CPUID
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/// \since Crypto++ 8.0
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/// \note This function is only available on Intel IA-32 platforms
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inline bool HasAVX()
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{
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#if CRYPTOPP_AVX_AVAILABLE
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasAVX;
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#else
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return false;
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#endif
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}
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/// \brief Determine AVX2 availability
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/// \return true if AVX2 is determined to be available, false otherwise
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/// \details HasAVX2() is a runtime check performed using CPUID
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/// \since Crypto++ 8.0
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/// \note This function is only available on Intel IA-32 platforms
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inline bool HasAVX2()
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{
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#if CRYPTOPP_AVX2_AVAILABLE
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasAVX2;
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#else
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return false;
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#endif
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}
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/// \brief Determine RDRAND availability
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/// \return true if RDRAND is determined to be available, false otherwise
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/// \details HasRDRAND() is a runtime check performed using CPUID
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/// \note This function is only available on Intel IA-32 platforms
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inline bool HasRDRAND()
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{
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#if CRYPTOPP_RDRAND_AVAILABLE
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasRDRAND;
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#else
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return false;
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#endif
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}
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/// \brief Determine RDSEED availability
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/// \return true if RDSEED is determined to be available, false otherwise
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/// \details HasRDSEED() is a runtime check performed using CPUID
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/// \note This function is only available on Intel IA-32 platforms
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inline bool HasRDSEED()
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{
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#if CRYPTOPP_RDSEED_AVAILABLE
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasRDSEED;
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#else
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return false;
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#endif
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}
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/// \brief Determine Padlock RNG availability
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/// \return true if VIA Padlock RNG is determined to be available, false otherwise
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/// \details HasPadlockRNG() is a runtime check performed using CPUID
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/// \note This function is only available on Intel IA-32 platforms
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inline bool HasPadlockRNG()
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{
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#if CRYPTOPP_PADLOCK_RNG_AVAILABLE
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasPadlockRNG;
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#else
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return false;
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#endif
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}
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/// \brief Determine Padlock ACE availability
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/// \return true if VIA Padlock ACE is determined to be available, false otherwise
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/// \details HasPadlockACE() is a runtime check performed using CPUID
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/// \note This function is only available on Intel IA-32 platforms
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inline bool HasPadlockACE()
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{
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#if CRYPTOPP_PADLOCK_ACE_AVAILABLE
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasPadlockACE;
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#else
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return false;
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#endif
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}
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/// \brief Determine Padlock ACE2 availability
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/// \return true if VIA Padlock ACE2 is determined to be available, false otherwise
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/// \details HasPadlockACE2() is a runtime check performed using CPUID
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/// \note This function is only available on Intel IA-32 platforms
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inline bool HasPadlockACE2()
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{
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#if CRYPTOPP_PADLOCK_ACE2_AVAILABLE
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasPadlockACE2;
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#else
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return false;
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#endif
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}
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/// \brief Determine Padlock PHE availability
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/// \return true if VIA Padlock PHE is determined to be available, false otherwise
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/// \details HasPadlockPHE() is a runtime check performed using CPUID
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/// \note This function is only available on Intel IA-32 platforms
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inline bool HasPadlockPHE()
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{
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#if CRYPTOPP_PADLOCK_PHE_AVAILABLE
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasPadlockPHE;
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#else
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return false;
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#endif
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}
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/// \brief Determine Padlock PMM availability
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/// \return true if VIA Padlock PMM is determined to be available, false otherwise
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/// \details HasPadlockPMM() is a runtime check performed using CPUID
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/// \note This function is only available on Intel IA-32 platforms
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inline bool HasPadlockPMM()
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{
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#if CRYPTOPP_PADLOCK_PMM_AVAILABLE
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasPadlockPMM;
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#else
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return false;
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#endif
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}
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/// \brief Determine if the CPU is an Intel P4
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/// \return true if the CPU is a P4, false otherwise
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/// \details IsP4() is a runtime check performed using CPUID
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/// \note This function is only available on Intel IA-32 platforms
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inline bool IsP4()
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{
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_isP4;
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}
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/// \brief Provides the cache line size
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/// \return lower bound on the size of a cache line in bytes, if available
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/// \details GetCacheLineSize() returns the lower bound on the size of a cache line, if it
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/// is available. If the value is not available at runtime, then 32 is returned for a 32-bit
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/// processor and 64 is returned for a 64-bit processor.
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/// \details x86/x32/x64 uses CPUID to determine the value and it is usually accurate. PowerPC
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/// and AIX also makes the value available to user space and it is also usually accurate. The
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/// ARM processor equivalent is a privileged instruction, so a compile time value is returned.
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inline int GetCacheLineSize()
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{
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_cacheLineSize;
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}
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//@}
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#endif // CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64
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// ***************************** ARM-32, Aarch32 and Aarch64 ***************************** //
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#if CRYPTOPP_BOOL_ARM32 || CRYPTOPP_BOOL_ARMV8 || CRYPTOPP_DOXYGEN_PROCESSING
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// Hide from Doxygen
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#ifndef CRYPTOPP_DOXYGEN_PROCESSING
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extern bool g_ArmDetectionDone;
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extern bool g_hasARMv7;
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extern bool g_hasNEON;
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extern bool g_hasPMULL;
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extern bool g_hasCRC32;
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extern bool g_hasAES;
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extern bool g_hasSHA1;
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extern bool g_hasSHA2;
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extern bool g_hasSHA512;
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extern bool g_hasSHA3;
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extern bool g_hasSM3;
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extern bool g_hasSM4;
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void CRYPTOPP_API DetectArmFeatures();
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#endif // CRYPTOPP_DOXYGEN_PROCESSING
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/// \name ARM A-32, Aarch32 and AArch64 CPU FEATURES
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//@{
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/// \brief Determine if an ARM processor is ARMv7 or above
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/// \return true if the hardware is ARMv7 or above, false otherwise.
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/// \details Some AES code requires ARMv7 or above
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/// \since Crypto++ 8.0
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/// \note This function is only available on ARM-32, Aarch32 and Aarch64 platforms
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inline bool HasARMv7()
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{
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// ASIMD is a core feature on Aarch32 and Aarch64 like SSE2 is a core feature on x86_64
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#if defined(__aarch32__) || defined(__aarch64__)
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return true;
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#else
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if (!g_ArmDetectionDone)
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DetectArmFeatures();
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return g_hasARMv7;
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#endif
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}
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/// \brief Determine if an ARM processor has Advanced SIMD available
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/// \return true if the hardware is capable of Advanced SIMD at runtime, false otherwise.
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/// \details Advanced SIMD instructions are available under most ARMv7, Aarch32 and Aarch64.
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/// \details Runtime support requires compile time support. When compiling with GCC, you may
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/// need to compile with <tt>-mfpu=neon</tt> (32-bit) or <tt>-march=armv8-a</tt>
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/// (64-bit). Also see ARM's <tt>__ARM_NEON</tt> preprocessor macro.
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/// \since Crypto++ 5.6.4
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/// \note This function is only available on ARM-32, Aarch32 and Aarch64 platforms
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inline bool HasNEON()
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{
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// ASIMD is a core feature on Aarch32 and Aarch64 like SSE2 is a core feature on x86_64
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#if defined(CRYPTOPP_ARM_ASIMD_AVAILABLE)
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return true;
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#elif defined(CRYPTOPP_ARM_NEON_AVAILABLE)
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if (!g_ArmDetectionDone)
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DetectArmFeatures();
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return g_hasNEON;
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#else
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return false;
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#endif
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}
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/// \brief Determine if an ARM processor has CRC32 available
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/// \return true if the hardware is capable of CRC32 at runtime, false otherwise.
|
|
/// \details CRC32 instructions provide access to the processor's CRC-32 and CRC-32C
|
|
/// instructions. They are provided by ARM C Language Extensions 2.0 (ACLE 2.0) and
|
|
/// available under Aarch32 and Aarch64.
|
|
/// \details Runtime support requires compile time support. When compiling with GCC,
|
|
/// you may need to compile with <tt>-march=armv8-a+crc</tt>; while Apple requires
|
|
/// <tt>-arch arm64</tt>. Also see ARM's <tt>__ARM_FEATURE_CRC32</tt> preprocessor macro.
|
|
/// \since Crypto++ 5.6.4
|
|
/// \note This function is only available on Aarch32 and Aarch64 platforms
|
|
inline bool HasCRC32()
|
|
{
|
|
#if defined(CRYPTOPP_ARM_CRC32_AVAILABLE)
|
|
if (!g_ArmDetectionDone)
|
|
DetectArmFeatures();
|
|
return g_hasCRC32;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
/// \brief Determine if an ARM processor has AES available
|
|
/// \return true if the hardware is capable of AES at runtime, false otherwise.
|
|
/// \details AES is part of the optional Crypto extensions on Aarch32 and Aarch64. They are
|
|
/// accessed using ARM C Language Extensions 2.0 (ACLE 2.0).
|
|
/// \details Runtime support requires compile time support. When compiling with GCC, you may
|
|
/// need to compile with <tt>-march=armv8-a+crypto</tt>; while Apple requires
|
|
/// <tt>-arch arm64</tt>. Also see ARM's <tt>__ARM_FEATURE_CRYPTO</tt> preprocessor macro.
|
|
/// \since Crypto++ 5.6.4
|
|
/// \note This function is only available on Aarch32 and Aarch64 platforms
|
|
inline bool HasAES()
|
|
{
|
|
#if defined(CRYPTOPP_ARM_AES_AVAILABLE)
|
|
if (!g_ArmDetectionDone)
|
|
DetectArmFeatures();
|
|
return g_hasAES;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
/// \brief Determine if an ARM processor provides Polynomial Multiplication
|
|
/// \return true if the hardware is capable of polynomial multiplications at runtime,
|
|
/// false otherwise.
|
|
/// \details The multiplication instructions are available under Aarch32 and Aarch64.
|
|
/// \details Runtime support requires compile time support. When compiling with GCC,
|
|
/// you may need to compile with <tt>-march=armv8-a+crypto</tt>; while Apple requires
|
|
/// <tt>-arch arm64</tt>. Also see ARM's <tt>__ARM_FEATURE_CRYPTO</tt> preprocessor macro.
|
|
/// \since Crypto++ 5.6.4
|
|
/// \note This function is only available on Aarch32 and Aarch64 platforms
|
|
inline bool HasPMULL()
|
|
{
|
|
#if defined(CRYPTOPP_ARM_PMULL_AVAILABLE)
|
|
if (!g_ArmDetectionDone)
|
|
DetectArmFeatures();
|
|
return g_hasPMULL;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
/// \brief Determine if an ARM processor has SHA1 available
|
|
/// \return true if the hardware is capable of SHA1 at runtime, false otherwise.
|
|
/// \details SHA1 is part of the optional Crypto extensions on Aarch32 and Aarch64. They are
|
|
/// accessed using ARM C Language Extensions 2.0 (ACLE 2.0).
|
|
/// \details Runtime support requires compile time support. When compiling with GCC, you may
|
|
/// need to compile with <tt>-march=armv8-a+crypto</tt>; while Apple requires
|
|
/// <tt>-arch arm64</tt>. Also see ARM's <tt>__ARM_FEATURE_CRYPTO</tt> preprocessor macro.
|
|
/// \since Crypto++ 5.6.4
|
|
/// \note This function is only available on Aarch32 and Aarch64 platforms
|
|
inline bool HasSHA1()
|
|
{
|
|
#if defined(CRYPTOPP_ARM_SHA1_AVAILABLE)
|
|
if (!g_ArmDetectionDone)
|
|
DetectArmFeatures();
|
|
return g_hasSHA1;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
/// \brief Determine if an ARM processor has SHA256 available
|
|
/// \return true if the hardware is capable of SHA256 at runtime, false otherwise.
|
|
/// \details SHA256 is part of the optional Crypto extensions on Aarch32 and Aarch64. They are
|
|
/// accessed using ARM C Language Extensions 2.0 (ACLE 2.0).
|
|
/// \details Runtime support requires compile time support. When compiling with GCC, you may
|
|
/// need to compile with <tt>-march=armv8-a+crypto</tt>; while Apple requires
|
|
/// <tt>-arch arm64</tt>. Also see ARM's <tt>__ARM_FEATURE_CRYPTO</tt> preprocessor macro.
|
|
/// \since Crypto++ 5.6.4
|
|
/// \note This function is only available on Aarch32 and Aarch64 platforms
|
|
inline bool HasSHA2()
|
|
{
|
|
#if defined(CRYPTOPP_ARM_SHA2_AVAILABLE)
|
|
if (!g_ArmDetectionDone)
|
|
DetectArmFeatures();
|
|
return g_hasSHA2;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
/// \brief Determine if an ARM processor has SHA3 available
|
|
/// \return true if the hardware is capable of SHA3 at runtime, false otherwise.
|
|
/// \details SHA3 is part of the ARMv8.2 Crypto extensions on Aarch32 and Aarch64. They
|
|
/// are accessed using ARM C Language Extensions 2.0 (ACLE 2.0).
|
|
/// \details Runtime support requires compile time support. When compiling with GCC, you
|
|
/// may need to compile with <tt>-march=armv8.2-a+crypto</tt>; while Apple requires
|
|
/// <tt>-arch arm64</tt>. Also see ARM's <tt>__ARM_FEATURE_CRYPTO</tt> preprocessor macro.
|
|
/// \since Crypto++ 8.0
|
|
/// \note This function is only available on Aarch32 and Aarch64 platforms
|
|
inline bool HasSHA3()
|
|
{
|
|
#if defined(CRYPTOPP_ARM_SHA3_AVAILABLE)
|
|
if (!g_ArmDetectionDone)
|
|
DetectArmFeatures();
|
|
return g_hasSHA3;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
/// \brief Determine if an ARM processor has SHA512 available
|
|
/// \return true if the hardware is capable of SHA512 at runtime, false otherwise.
|
|
/// \details SHA512 is part of the ARMv8.2 Crypto extensions on Aarch32 and Aarch64. They
|
|
/// are accessed using ARM C Language Extensions 2.0 (ACLE 2.0).
|
|
/// \details Runtime support requires compile time support. When compiling with GCC, you
|
|
/// may need to compile with <tt>-march=armv8.2-a+crypto</tt>; while Apple requires
|
|
/// <tt>-arch arm64</tt>. Also see ARM's <tt>__ARM_FEATURE_CRYPTO</tt> preprocessor macro.
|
|
/// \since Crypto++ 8.0
|
|
/// \note This function is only available on Aarch32 and Aarch64 platforms
|
|
inline bool HasSHA512()
|
|
{
|
|
#if defined(CRYPTOPP_ARM_SHA512_AVAILABLE)
|
|
if (!g_ArmDetectionDone)
|
|
DetectArmFeatures();
|
|
return g_hasSHA512;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
/// \brief Determine if an ARM processor has SM3 available
|
|
/// \return true if the hardware is capable of SM3 at runtime, false otherwise.
|
|
/// \details SM3 is part of the ARMv8.2 Crypto extensions on Aarch32 and Aarch64. They
|
|
/// are accessed using ARM C Language Extensions 2.0 (ACLE 2.0).
|
|
/// \details Runtime support requires compile time support. When compiling with GCC, you
|
|
/// may need to compile with <tt>-march=armv8.2-a+crypto</tt>; while Apple requires
|
|
/// <tt>-arch arm64</tt>. Also see ARM's <tt>__ARM_FEATURE_CRYPTO</tt> preprocessor macro.
|
|
/// \since Crypto++ 8.0
|
|
/// \note This function is only available on Aarch32 and Aarch64 platforms
|
|
inline bool HasSM3()
|
|
{
|
|
#if defined(CRYPTOPP_ARM_SM3_AVAILABLE)
|
|
if (!g_ArmDetectionDone)
|
|
DetectArmFeatures();
|
|
return g_hasSM3;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
/// \brief Determine if an ARM processor has SM4 available
|
|
/// \return true if the hardware is capable of SM4 at runtime, false otherwise.
|
|
/// \details SM4 is part of the ARMv8.2 Crypto extensions on Aarch32 and Aarch64. They
|
|
/// are accessed using ARM C Language Extensions 2.0 (ACLE 2.0).
|
|
/// \details Runtime support requires compile time support. When compiling with GCC, you
|
|
/// may need to compile with <tt>-march=armv8.2-a+crypto</tt>; while Apple requires
|
|
/// <tt>-arch arm64</tt>. Also see ARM's <tt>__ARM_FEATURE_CRYPTO</tt> preprocessor macro.
|
|
/// \since Crypto++ 8.0
|
|
/// \note This function is only available on Aarch32 and Aarch64 platforms
|
|
inline bool HasSM4()
|
|
{
|
|
#if defined(CRYPTOPP_ARM_SM4_AVAILABLE)
|
|
if (!g_ArmDetectionDone)
|
|
DetectArmFeatures();
|
|
return g_hasSM4;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
//@}
|
|
|
|
#endif // CRYPTOPP_BOOL_ARM32 || CRYPTOPP_BOOL_ARMV8
|
|
|
|
// ***************************** PowerPC ***************************** //
|
|
|
|
#if CRYPTOPP_BOOL_PPC32 || CRYPTOPP_BOOL_PPC64 || CRYPTOPP_DOXYGEN_PROCESSING
|
|
|
|
// Hide from Doxygen
|
|
#ifndef CRYPTOPP_DOXYGEN_PROCESSING
|
|
extern bool g_PowerpcDetectionDone;
|
|
extern bool g_hasAltivec;
|
|
extern bool g_hasPower7;
|
|
extern bool g_hasPower8;
|
|
extern bool g_hasPower9;
|
|
extern bool g_hasAES;
|
|
extern bool g_hasPMULL;
|
|
extern bool g_hasSHA256;
|
|
extern bool g_hasSHA512;
|
|
extern bool g_hasDARN;
|
|
extern word32 g_cacheLineSize;
|
|
void CRYPTOPP_API DetectPowerpcFeatures();
|
|
#endif // CRYPTOPP_DOXYGEN_PROCESSING
|
|
|
|
/// \name POWERPC CPU FEATURES
|
|
//@{
|
|
|
|
/// \brief Determine if a PowerPC processor has Altivec available
|
|
/// \return true if the hardware is capable of Altivec at runtime, false otherwise.
|
|
/// \details Altivec instructions are available on modern PowerPCs.
|
|
/// \details Runtime support requires compile time support. When compiling with GCC, you may
|
|
/// need to compile with <tt>-mcpu=power4</tt>; while IBM XL C/C++ compilers require
|
|
/// <tt>-qarch=pwr6 -qaltivec</tt>. Also see PowerPC's <tt>_ALTIVEC_</tt> preprocessor macro.
|
|
/// \note This function is only available on PowerPC and PowerPC-64 platforms
|
|
inline bool HasAltivec()
|
|
{
|
|
#if CRYPTOPP_ALTIVEC_AVAILABLE
|
|
if (!g_PowerpcDetectionDone)
|
|
DetectPowerpcFeatures();
|
|
return g_hasAltivec;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
/// \brief Determine if a PowerPC processor has Power7 available
|
|
/// \return true if the hardware is capable of Power7 at runtime, false otherwise.
|
|
/// \details Runtime support requires compile time support. When compiling with GCC, you may
|
|
/// need to compile with <tt>-mcpu=power7</tt>; while IBM XL C/C++ compilers require
|
|
/// <tt>-qarch=pwr7 -qaltivec</tt>. Also see PowerPC's <tt>_ALTIVEC_</tt> preprocessor macro.
|
|
/// \note This function is only available on PowerPC and PowerPC-64 platforms
|
|
inline bool HasPower7()
|
|
{
|
|
#if CRYPTOPP_POWER7_AVAILABLE
|
|
if (!g_PowerpcDetectionDone)
|
|
DetectPowerpcFeatures();
|
|
return g_hasPower7;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
/// \brief Determine if a PowerPC processor has Power8 available
|
|
/// \return true if the hardware is capable of Power8 at runtime, false otherwise.
|
|
/// \details Runtime support requires compile time support. When compiling with GCC, you may
|
|
/// need to compile with <tt>-mcpu=power8</tt>; while IBM XL C/C++ compilers require
|
|
/// <tt>-qarch=pwr8 -qaltivec</tt>. Also see PowerPC's <tt>_ALTIVEC_</tt> preprocessor macro.
|
|
/// \note This function is only available on PowerPC and PowerPC-64 platforms
|
|
inline bool HasPower8()
|
|
{
|
|
#if CRYPTOPP_POWER8_AVAILABLE
|
|
if (!g_PowerpcDetectionDone)
|
|
DetectPowerpcFeatures();
|
|
return g_hasPower8;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
/// \brief Determine if a PowerPC processor has Power9 available
|
|
/// \return true if the hardware is capable of Power9 at runtime, false otherwise.
|
|
/// \details Runtime support requires compile time support. When compiling with GCC, you may
|
|
/// need to compile with <tt>-mcpu=power9</tt>; while IBM XL C/C++ compilers require
|
|
/// <tt>-qarch=pwr9 -qaltivec</tt>. Also see PowerPC's <tt>_ALTIVEC_</tt> preprocessor macro.
|
|
/// \note This function is only available on PowerPC and PowerPC-64 platforms
|
|
inline bool HasPower9()
|
|
{
|
|
#if CRYPTOPP_POWER9_AVAILABLE
|
|
if (!g_PowerpcDetectionDone)
|
|
DetectPowerpcFeatures();
|
|
return g_hasPower9;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
/// \brief Determine if a PowerPC processor has AES available
|
|
/// \return true if the hardware is capable of AES at runtime, false otherwise.
|
|
/// \details AES is part of the in-crypto extensions on Power8 and Power9.
|
|
/// \details Runtime support requires compile time support. When compiling with GCC, you may
|
|
/// need to compile with <tt>-mcpu=power8</tt>; while IBM XL C/C++ compilers require
|
|
/// <tt>-qarch=pwr8 -qaltivec</tt>. Also see PowerPC's <tt>__CRYPTO</tt> preprocessor macro.
|
|
/// \note This function is only available on PowerPC and PowerPC-64 platforms
|
|
inline bool HasAES()
|
|
{
|
|
#if CRYPTOPP_POWER8_AES_AVAILABLE
|
|
if (!g_PowerpcDetectionDone)
|
|
DetectPowerpcFeatures();
|
|
return g_hasAES;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
/// \brief Determine if a PowerPC processor has Polynomial Multiply available
|
|
/// \return true if the hardware is capable of PMULL at runtime, false otherwise.
|
|
/// \details PMULL is part of the in-crypto extensions on Power8 and Power9.
|
|
/// \details Runtime support requires compile time support. When compiling with GCC, you may
|
|
/// need to compile with <tt>-mcpu=power8</tt>; while IBM XL C/C++ compilers require
|
|
/// <tt>-qarch=pwr8 -qaltivec</tt>. Also see PowerPC's <tt>__CRYPTO</tt> preprocessor macro.
|
|
/// \note This function is only available on PowerPC and PowerPC-64 platforms
|
|
inline bool HasPMULL()
|
|
{
|
|
#if CRYPTOPP_POWER8_VMULL_AVAILABLE
|
|
if (!g_PowerpcDetectionDone)
|
|
DetectPowerpcFeatures();
|
|
return g_hasPMULL;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
/// \brief Determine if a PowerPC processor has SHA256 available
|
|
/// \return true if the hardware is capable of SHA256 at runtime, false otherwise.
|
|
/// \details SHA is part of the in-crypto extensions on Power8 and Power9.
|
|
/// \details Runtime support requires compile time support. When compiling with GCC, you may
|
|
/// need to compile with <tt>-mcpu=power8</tt>; while IBM XL C/C++ compilers require
|
|
/// <tt>-qarch=pwr8 -qaltivec</tt>. Also see PowerPC's <tt>__CRYPTO</tt> preprocessor macro.
|
|
/// \note This function is only available on PowerPC and PowerPC-64 platforms
|
|
inline bool HasSHA256()
|
|
{
|
|
#if CRYPTOPP_POWER8_SHA_AVAILABLE
|
|
if (!g_PowerpcDetectionDone)
|
|
DetectPowerpcFeatures();
|
|
return g_hasSHA256;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
/// \brief Determine if a PowerPC processor has SHA512 available
|
|
/// \return true if the hardware is capable of SHA512 at runtime, false otherwise.
|
|
/// \details SHA is part of the in-crypto extensions on Power8 and Power9.
|
|
/// \details Runtime support requires compile time support. When compiling with GCC, you may
|
|
/// need to compile with <tt>-mcpu=power8</tt>; while IBM XL C/C++ compilers require
|
|
/// <tt>-qarch=pwr8 -qaltivec</tt>. Also see PowerPC's <tt>__CRYPTO</tt> preprocessor macro.
|
|
/// \note This function is only available on PowerPC and PowerPC-64 platforms
|
|
inline bool HasSHA512()
|
|
{
|
|
#if CRYPTOPP_POWER8_SHA_AVAILABLE
|
|
if (!g_PowerpcDetectionDone)
|
|
DetectPowerpcFeatures();
|
|
return g_hasSHA512;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
/// \brief Determine if a PowerPC processor has DARN available
|
|
/// \return true if the hardware is capable of DARN at runtime, false otherwise.
|
|
/// \details Runtime support requires compile time support. When compiling with GCC, you may
|
|
/// need to compile with <tt>-mcpu=power9</tt>; while IBM XL C/C++ compilers require
|
|
/// <tt>-qarch=pwr9 -qaltivec</tt>. Also see PowerPC's <tt>_ALTIVEC_</tt> preprocessor macro.
|
|
/// \note This function is only available on PowerPC and PowerPC-64 platforms
|
|
inline bool HasDARN()
|
|
{
|
|
#if CRYPTOPP_POWER9_AVAILABLE
|
|
if (!g_PowerpcDetectionDone)
|
|
DetectPowerpcFeatures();
|
|
// see comments in cpu.cpp
|
|
# if defined(__ibmxl__) && defined(__linux__)
|
|
return false;
|
|
# else
|
|
return g_hasDARN;
|
|
# endif
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
/// \brief Provides the cache line size
|
|
/// \return lower bound on the size of a cache line in bytes, if available
|
|
/// \details GetCacheLineSize() returns the lower bound on the size of a cache line, if it
|
|
/// is available. If the value is not available at runtime, then 32 is returned for a 32-bit
|
|
/// processor and 64 is returned for a 64-bit processor.
|
|
/// \details x86/x32/x64 uses CPUID to determine the value and it is usually accurate. PowerPC
|
|
/// and AIX also makes the value available to user space and it is also usually accurate. The
|
|
/// ARM processor equivalent is a privileged instruction, so a compile time value is returned.
|
|
inline int GetCacheLineSize()
|
|
{
|
|
if (!g_PowerpcDetectionDone)
|
|
DetectPowerpcFeatures();
|
|
return g_cacheLineSize;
|
|
}
|
|
|
|
//@}
|
|
|
|
#endif // CRYPTOPP_BOOL_PPC32 || CRYPTOPP_BOOL_PPC64
|
|
|
|
// ***************************** L1 cache line ***************************** //
|
|
|
|
// Non-Intel systems
|
|
#if !(CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64 || CRYPTOPP_BOOL_PPC32 || CRYPTOPP_BOOL_PPC64)
|
|
/// \brief Provides the cache line size
|
|
/// \return lower bound on the size of a cache line in bytes, if available
|
|
/// \details GetCacheLineSize() returns the lower bound on the size of a cache line, if it
|
|
/// is available. If the value is not available at runtime, then 32 is returned for a 32-bit
|
|
/// processor and 64 is returned for a 64-bit processor.
|
|
/// \details x86/x32/x64 uses CPUID to determine the value and it is usually accurate. PowerPC
|
|
/// and AIX also makes the value available to user space and it is also usually accurate. The
|
|
/// ARM processor equivalent is a privileged instruction, so a compile time value is returned.
|
|
inline int GetCacheLineSize()
|
|
{
|
|
return CRYPTOPP_L1_CACHE_LINE_SIZE;
|
|
}
|
|
#endif // Non-Intel systems
|
|
|
|
#endif // CRYPTOPP_GENERATE_X64_MASM
|
|
|
|
// ***************************** Inline ASM Helper ***************************** //
|
|
|
|
#ifndef CRYPTOPP_DOXYGEN_PROCESSING
|
|
|
|
#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64
|
|
|
|
#ifdef CRYPTOPP_GENERATE_X64_MASM
|
|
#define AS1(x) x*newline*
|
|
#define AS2(x, y) x, y*newline*
|
|
#define AS3(x, y, z) x, y, z*newline*
|
|
#define ASS(x, y, a, b, c, d) x, y, a*64+b*16+c*4+d*newline*
|
|
#define ASL(x) label##x:*newline*
|
|
#define ASJ(x, y, z) x label##y*newline*
|
|
#define ASC(x, y) x label##y*newline*
|
|
#define AS_HEX(y) 0##y##h
|
|
#elif defined(_MSC_VER) || defined(__BORLANDC__)
|
|
#define AS1(x) __asm {x}
|
|
#define AS2(x, y) __asm {x, y}
|
|
#define AS3(x, y, z) __asm {x, y, z}
|
|
#define ASS(x, y, a, b, c, d) __asm {x, y, (a)*64+(b)*16+(c)*4+(d)}
|
|
#define ASL(x) __asm {label##x:}
|
|
#define ASJ(x, y, z) __asm {x label##y}
|
|
#define ASC(x, y) __asm {x label##y}
|
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#define CRYPTOPP_NAKED __declspec(naked)
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#define AS_HEX(y) 0x##y
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#else
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// define these in two steps to allow arguments to be expanded
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#define GNU_AS1(x) #x ";" NEW_LINE
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#define GNU_AS2(x, y) #x ", " #y ";" NEW_LINE
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#define GNU_AS3(x, y, z) #x ", " #y ", " #z ";" NEW_LINE
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#define GNU_ASL(x) "\n" #x ":" NEW_LINE
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// clang 5.0.0 and apple clang 9.0.0 don't support numerical backward jumps
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#if (CRYPTOPP_LLVM_CLANG_VERSION >= 50000) || (CRYPTOPP_APPLE_CLANG_VERSION >= 90000)
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#define GNU_ASJ(x, y, z) ATT_PREFIX ";" NEW_LINE #x " " #y #z ";" NEW_LINE INTEL_PREFIX ";" NEW_LINE
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#else
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#define GNU_ASJ(x, y, z) #x " " #y #z ";" NEW_LINE
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#endif
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#define AS1(x) GNU_AS1(x)
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#define AS2(x, y) GNU_AS2(x, y)
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#define AS3(x, y, z) GNU_AS3(x, y, z)
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#define ASS(x, y, a, b, c, d) #x ", " #y ", " #a "*64+" #b "*16+" #c "*4+" #d ";"
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#define ASL(x) GNU_ASL(x)
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#define ASJ(x, y, z) GNU_ASJ(x, y, z)
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#define ASC(x, y) #x " " #y ";"
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#define CRYPTOPP_NAKED
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#define AS_HEX(y) 0x##y
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#endif
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#define IF0(y)
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#define IF1(y) y
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#ifdef CRYPTOPP_GENERATE_X64_MASM
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#define ASM_MOD(x, y) ((x) MOD (y))
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#define XMMWORD_PTR XMMWORD PTR
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#else
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// GNU assembler doesn't seem to have mod operator
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#define ASM_MOD(x, y) ((x)-((x)/(y))*(y))
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// GAS 2.15 doesn't support XMMWORD PTR. it seems necessary only for MASM
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#define XMMWORD_PTR
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#endif
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#if CRYPTOPP_BOOL_X86
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#define AS_REG_1 ecx
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#define AS_REG_2 edx
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#define AS_REG_3 esi
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#define AS_REG_4 edi
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#define AS_REG_5 eax
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#define AS_REG_6 ebx
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#define AS_REG_7 ebp
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#define AS_REG_1d ecx
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#define AS_REG_2d edx
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#define AS_REG_3d esi
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#define AS_REG_4d edi
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#define AS_REG_5d eax
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#define AS_REG_6d ebx
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#define AS_REG_7d ebp
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#define WORD_SZ 4
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#define WORD_REG(x) e##x
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#define WORD_PTR DWORD PTR
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#define AS_PUSH_IF86(x) AS1(push e##x)
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#define AS_POP_IF86(x) AS1(pop e##x)
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#define AS_JCXZ jecxz
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#elif CRYPTOPP_BOOL_X32
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#define AS_REG_1 ecx
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#define AS_REG_2 edx
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#define AS_REG_3 r8d
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#define AS_REG_4 r9d
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#define AS_REG_5 eax
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#define AS_REG_6 r10d
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#define AS_REG_7 r11d
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#define AS_REG_1d ecx
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#define AS_REG_2d edx
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#define AS_REG_3d r8d
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#define AS_REG_4d r9d
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#define AS_REG_5d eax
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#define AS_REG_6d r10d
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#define AS_REG_7d r11d
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#define WORD_SZ 4
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#define WORD_REG(x) e##x
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#define WORD_PTR DWORD PTR
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#define AS_PUSH_IF86(x) AS1(push r##x)
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#define AS_POP_IF86(x) AS1(pop r##x)
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#define AS_JCXZ jecxz
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#elif CRYPTOPP_BOOL_X64
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#ifdef CRYPTOPP_GENERATE_X64_MASM
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#define AS_REG_1 rcx
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#define AS_REG_2 rdx
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#define AS_REG_3 r8
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#define AS_REG_4 r9
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#define AS_REG_5 rax
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#define AS_REG_6 r10
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#define AS_REG_7 r11
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#define AS_REG_1d ecx
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#define AS_REG_2d edx
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#define AS_REG_3d r8d
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#define AS_REG_4d r9d
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#define AS_REG_5d eax
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#define AS_REG_6d r10d
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#define AS_REG_7d r11d
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#else
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#define AS_REG_1 rdi
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#define AS_REG_2 rsi
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#define AS_REG_3 rdx
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#define AS_REG_4 rcx
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#define AS_REG_5 r8
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#define AS_REG_6 r9
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#define AS_REG_7 r10
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#define AS_REG_1d edi
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#define AS_REG_2d esi
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#define AS_REG_3d edx
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#define AS_REG_4d ecx
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#define AS_REG_5d r8d
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#define AS_REG_6d r9d
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#define AS_REG_7d r10d
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#endif
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#define WORD_SZ 8
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#define WORD_REG(x) r##x
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#define WORD_PTR QWORD PTR
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#define AS_PUSH_IF86(x)
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#define AS_POP_IF86(x)
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#define AS_JCXZ jrcxz
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#endif
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// helper macro for stream cipher output
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#define AS_XMM_OUTPUT4(labelPrefix, inputPtr, outputPtr, x0, x1, x2, x3, t, p0, p1, p2, p3, increment)\
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AS2( test inputPtr, inputPtr)\
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ASC( jz, labelPrefix##3)\
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AS2( test inputPtr, 15)\
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ASC( jnz, labelPrefix##7)\
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AS2( pxor xmm##x0, [inputPtr+p0*16])\
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AS2( pxor xmm##x1, [inputPtr+p1*16])\
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AS2( pxor xmm##x2, [inputPtr+p2*16])\
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AS2( pxor xmm##x3, [inputPtr+p3*16])\
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AS2( add inputPtr, increment*16)\
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ASC( jmp, labelPrefix##3)\
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ASL(labelPrefix##7)\
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AS2( movdqu xmm##t, [inputPtr+p0*16])\
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AS2( pxor xmm##x0, xmm##t)\
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AS2( movdqu xmm##t, [inputPtr+p1*16])\
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AS2( pxor xmm##x1, xmm##t)\
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AS2( movdqu xmm##t, [inputPtr+p2*16])\
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AS2( pxor xmm##x2, xmm##t)\
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AS2( movdqu xmm##t, [inputPtr+p3*16])\
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AS2( pxor xmm##x3, xmm##t)\
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AS2( add inputPtr, increment*16)\
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ASL(labelPrefix##3)\
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AS2( test outputPtr, 15)\
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ASC( jnz, labelPrefix##8)\
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AS2( movdqa [outputPtr+p0*16], xmm##x0)\
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AS2( movdqa [outputPtr+p1*16], xmm##x1)\
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AS2( movdqa [outputPtr+p2*16], xmm##x2)\
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AS2( movdqa [outputPtr+p3*16], xmm##x3)\
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ASC( jmp, labelPrefix##9)\
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ASL(labelPrefix##8)\
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AS2( movdqu [outputPtr+p0*16], xmm##x0)\
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AS2( movdqu [outputPtr+p1*16], xmm##x1)\
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AS2( movdqu [outputPtr+p2*16], xmm##x2)\
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AS2( movdqu [outputPtr+p3*16], xmm##x3)\
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ASL(labelPrefix##9)\
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AS2( add outputPtr, increment*16)
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#endif // CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64
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|
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#endif // Not CRYPTOPP_DOXYGEN_PROCESSING
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NAMESPACE_END
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// Issue 340
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#if CRYPTOPP_GCC_DIAGNOSTIC_AVAILABLE
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# pragma GCC diagnostic pop
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#endif
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#endif // CRYPTOPP_CPU_H
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