// cpu.h - originally written and placed in the public domain by Wei Dai // updated for ARM and PowerPC by Jeffrey Walton. // updated to split CPU_Query() and CPU_Probe() by Jeffrey Walton. /// \file cpu.h /// \brief Functions for CPU features and intrinsics /// \details The CPU functions are used in IA-32, ARM and PowerPC code paths. The /// functions provide cpu specific feature testing on IA-32, ARM and PowerPC machines. /// \details Feature detection uses CPUID on IA-32, like Intel and AMD. On other platforms /// a two-part strategy is used. First, the library attempts to *Query* the OS for a feature, /// like using Linux getauxval() or android_getCpuFeatures(). If that fails, then *Probe* /// the cpu executing an instruction and an observe a SIGILL if unsupported. The general /// pattern used by the library is: ///
///     g_hasCRC32 = CPU_QueryCRC32() || CPU_ProbeCRC32();
///     g_hasPMULL = CPU_QueryPMULL() || CPU_ProbePMULL();
///     g_hasAES  = CPU_QueryAES() || CPU_ProbeAES();
/// 
/// \details Generally speaking, CPU_Query() is in the source file cpu.cpp because it /// does not require special architectural flags. CPU_Probe() is in a source file that recieves /// architectural flags, like sse_simd.cpp, neon_simd.cpp and /// ppc_simd.cpp. For example, compiling neon_simd.cpp on an ARM64 machine will /// have -march=armv8-a applied during a compile to make the instruction set architecture /// (ISA) available. /// \details The cpu probes are expensive when compared to a standard OS feature query. The library /// also avoids probes on Apple platforms because Apple's signal handling for SIGILLs appears to /// corrupt memory. CPU_Probe() will unconditionally return false for Apple platforms. OpenSSL /// experienced the same problem and moved away from SIGILL probes on Apple. #ifndef CRYPTOPP_CPU_H #define CRYPTOPP_CPU_H #include "config.h" // Issue 340 #if CRYPTOPP_GCC_DIAGNOSTIC_AVAILABLE # pragma GCC diagnostic push # pragma GCC diagnostic ignored "-Wconversion" # pragma GCC diagnostic ignored "-Wsign-conversion" #endif // Applies to both X86/X32/X64 and ARM32/ARM64 #if defined(CRYPTOPP_LLVM_CLANG_VERSION) || defined(CRYPTOPP_APPLE_CLANG_VERSION) #define NEW_LINE "\n" #define INTEL_PREFIX ".intel_syntax;" #define INTEL_NOPREFIX ".intel_syntax;" #define ATT_PREFIX ".att_syntax;" #define ATT_NOPREFIX ".att_syntax;" #elif defined(__GNUC__) #define NEW_LINE #define INTEL_PREFIX ".intel_syntax prefix;" #define INTEL_NOPREFIX ".intel_syntax noprefix;" #define ATT_PREFIX ".att_syntax prefix;" #define ATT_NOPREFIX ".att_syntax noprefix;" #else #define NEW_LINE #define INTEL_PREFIX #define INTEL_NOPREFIX #define ATT_PREFIX #define ATT_NOPREFIX #endif #ifdef CRYPTOPP_GENERATE_X64_MASM #define CRYPTOPP_X86_ASM_AVAILABLE #define CRYPTOPP_BOOL_X64 1 #define CRYPTOPP_SSE2_ASM_AVAILABLE 1 #define NAMESPACE_END #else NAMESPACE_BEGIN(CryptoPP) // ***************************** IA-32 ***************************** // #if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64 || CRYPTOPP_DOXYGEN_PROCESSING #define CRYPTOPP_CPUID_AVAILABLE 1 // Hide from Doxygen #ifndef CRYPTOPP_DOXYGEN_PROCESSING // These should not be used directly extern CRYPTOPP_DLL bool g_x86DetectionDone; extern CRYPTOPP_DLL bool g_hasSSE2; extern CRYPTOPP_DLL bool g_hasSSSE3; extern CRYPTOPP_DLL bool g_hasSSE41; extern CRYPTOPP_DLL bool g_hasSSE42; extern CRYPTOPP_DLL bool g_hasAVX; extern CRYPTOPP_DLL bool g_hasAVX2; extern CRYPTOPP_DLL bool g_hasAESNI; extern CRYPTOPP_DLL bool g_hasCLMUL; extern CRYPTOPP_DLL bool g_hasSHA; extern CRYPTOPP_DLL bool g_hasADX; extern CRYPTOPP_DLL bool g_isP4; extern CRYPTOPP_DLL bool g_hasRDRAND; extern CRYPTOPP_DLL bool g_hasRDSEED; extern CRYPTOPP_DLL bool g_hasPadlockRNG; extern CRYPTOPP_DLL bool g_hasPadlockACE; extern CRYPTOPP_DLL bool g_hasPadlockACE2; extern CRYPTOPP_DLL bool g_hasPadlockPHE; extern CRYPTOPP_DLL bool g_hasPadlockPMM; extern CRYPTOPP_DLL word32 g_cacheLineSize; CRYPTOPP_DLL void CRYPTOPP_API DetectX86Features(); CRYPTOPP_DLL bool CRYPTOPP_API CpuId(word32 func, word32 subfunc, word32 output[4]); #endif // CRYPTOPP_DOXYGEN_PROCESSING /// \name IA-32 CPU FEATURES //@{ /// \brief Determines SSE2 availability /// \returns true if SSE2 is determined to be available, false otherwise /// \details MMX, SSE and SSE2 are core processor features for x86_64, and /// the function always returns true for the platform. /// \note This function is only available on Intel IA-32 platforms inline bool HasSSE2() { #if CRYPTOPP_BOOL_X64 return true; #else if (!g_x86DetectionDone) DetectX86Features(); return g_hasSSE2; #endif } /// \brief Determines SSSE3 availability /// \returns true if SSSE3 is determined to be available, false otherwise /// \details HasSSSE3() is a runtime check performed using CPUID /// \note This function is only available on Intel IA-32 platforms inline bool HasSSSE3() { if (!g_x86DetectionDone) DetectX86Features(); return g_hasSSSE3; } /// \brief Determines SSE4.1 availability /// \returns true if SSE4.1 is determined to be available, false otherwise /// \details HasSSE41() is a runtime check performed using CPUID /// \note This function is only available on Intel IA-32 platforms inline bool HasSSE41() { if (!g_x86DetectionDone) DetectX86Features(); return g_hasSSE41; } /// \brief Determines SSE4.2 availability /// \returns true if SSE4.2 is determined to be available, false otherwise /// \details HasSSE42() is a runtime check performed using CPUID /// \note This function is only available on Intel IA-32 platforms inline bool HasSSE42() { if (!g_x86DetectionDone) DetectX86Features(); return g_hasSSE42; } /// \brief Determines AES-NI availability /// \returns true if AES-NI is determined to be available, false otherwise /// \details HasAESNI() is a runtime check performed using CPUID /// \since Crypto++ 5.6.1 /// \note This function is only available on Intel IA-32 platforms inline bool HasAESNI() { if (!g_x86DetectionDone) DetectX86Features(); return g_hasAESNI; } /// \brief Determines Carryless Multiply availability /// \returns true if pclmulqdq is determined to be available, false otherwise /// \details HasCLMUL() is a runtime check performed using CPUID /// \since Crypto++ 5.6.1 /// \note This function is only available on Intel IA-32 platforms inline bool HasCLMUL() { if (!g_x86DetectionDone) DetectX86Features(); return g_hasCLMUL; } /// \brief Determines SHA availability /// \returns true if SHA is determined to be available, false otherwise /// \details HasSHA() is a runtime check performed using CPUID /// \since Crypto++ 6.0 /// \note This function is only available on Intel IA-32 platforms inline bool HasSHA() { if (!g_x86DetectionDone) DetectX86Features(); return g_hasSHA; } /// \brief Determines ADX availability /// \returns true if ADX is determined to be available, false otherwise /// \details HasADX() is a runtime check performed using CPUID /// \since Crypto++ 7.0 /// \note This function is only available on Intel IA-32 platforms inline bool HasADX() { if (!g_x86DetectionDone) DetectX86Features(); return g_hasADX; } /// \brief Determines AVX availability /// \returns true if AVX is determined to be available, false otherwise /// \details HasAVX() is a runtime check performed using CPUID /// \since Crypto++ 7.1 /// \note This function is only available on Intel IA-32 platforms inline bool HasAVX() { if (!g_x86DetectionDone) DetectX86Features(); return g_hasAVX; } /// \brief Determines AVX2 availability /// \returns true if AVX2 is determined to be available, false otherwise /// \details HasAVX2() is a runtime check performed using CPUID /// \since Crypto++ 7.1 /// \note This function is only available on Intel IA-32 platforms inline bool HasAVX2() { if (!g_x86DetectionDone) DetectX86Features(); return g_hasAVX2; } /// \brief Determines if the CPU is an Intel P4 /// \returns true if the CPU is a P4, false otherwise /// \details IsP4() is a runtime check performed using CPUID /// \note This function is only available on Intel IA-32 platforms inline bool IsP4() { if (!g_x86DetectionDone) DetectX86Features(); return g_isP4; } /// \brief Determines RDRAND availability /// \returns true if RDRAND is determined to be available, false otherwise /// \details HasRDRAND() is a runtime check performed using CPUID /// \note This function is only available on Intel IA-32 platforms inline bool HasRDRAND() { if (!g_x86DetectionDone) DetectX86Features(); return g_hasRDRAND; } /// \brief Determines RDSEED availability /// \returns true if RDSEED is determined to be available, false otherwise /// \details HasRDSEED() is a runtime check performed using CPUID /// \note This function is only available on Intel IA-32 platforms inline bool HasRDSEED() { if (!g_x86DetectionDone) DetectX86Features(); return g_hasRDSEED; } /// \brief Determines Padlock RNG availability /// \returns true if VIA Padlock RNG is determined to be available, false otherwise /// \details HasPadlockRNG() is a runtime check performed using CPUID /// \note This function is only available on Intel IA-32 platforms inline bool HasPadlockRNG() { if (!g_x86DetectionDone) DetectX86Features(); return g_hasPadlockRNG; } /// \brief Determines Padlock ACE availability /// \returns true if VIA Padlock ACE is determined to be available, false otherwise /// \details HasPadlockACE() is a runtime check performed using CPUID /// \note This function is only available on Intel IA-32 platforms inline bool HasPadlockACE() { if (!g_x86DetectionDone) DetectX86Features(); return g_hasPadlockACE; } /// \brief Determines Padlock ACE2 availability /// \returns true if VIA Padlock ACE2 is determined to be available, false otherwise /// \details HasPadlockACE2() is a runtime check performed using CPUID /// \note This function is only available on Intel IA-32 platforms inline bool HasPadlockACE2() { if (!g_x86DetectionDone) DetectX86Features(); return g_hasPadlockACE2; } /// \brief Determines Padlock PHE availability /// \returns true if VIA Padlock PHE is determined to be available, false otherwise /// \details HasPadlockPHE() is a runtime check performed using CPUID /// \note This function is only available on Intel IA-32 platforms inline bool HasPadlockPHE() { if (!g_x86DetectionDone) DetectX86Features(); return g_hasPadlockPHE; } /// \brief Determines Padlock PMM availability /// \returns true if VIA Padlock PMM is determined to be available, false otherwise /// \details HasPadlockPMM() is a runtime check performed using CPUID /// \note This function is only available on Intel IA-32 platforms inline bool HasPadlockPMM() { if (!g_x86DetectionDone) DetectX86Features(); return g_hasPadlockPMM; } /// \brief Provides the cache line size /// \returns 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_x86DetectionDone) DetectX86Features(); return g_cacheLineSize; } //@} #endif // CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64 // ***************************** ARM-32, Aarch32 and Aarch64 ***************************** // #if CRYPTOPP_BOOL_ARM32 || CRYPTOPP_BOOL_ARMV8 || CRYPTOPP_DOXYGEN_PROCESSING // Hide from Doxygen #ifndef CRYPTOPP_DOXYGEN_PROCESSING extern bool g_ArmDetectionDone; extern bool g_hasARMv7; extern bool g_hasNEON; extern bool g_hasPMULL; extern bool g_hasCRC32; extern bool g_hasAES; extern bool g_hasSHA1; extern bool g_hasSHA2; extern bool g_hasSHA512; extern bool g_hasSHA3; extern bool g_hasSM3; extern bool g_hasSM4; void CRYPTOPP_API DetectArmFeatures(); #endif // CRYPTOPP_DOXYGEN_PROCESSING /// \name ARM A-32, Aarch32 and AArch64 CPU FEATURES //@{ /// \brief Determine if an ARM processor is ARMv7 or above /// \returns true if the hardware is ARMv7 or above, false otherwise. /// \details Some AES code requires ARMv7 or above /// \since Crypto++ 7.1 /// \note This function is only available on ARM-32, Aarch32 and Aarch64 platforms inline bool HasARMv7() { // ASIMD is a core feature on Aarch32 and Aarch64 like SSE2 is a core feature on x86_64 #if defined(__aarch32__) || defined(__aarch64__) return true; #else if (!g_ArmDetectionDone) DetectArmFeatures(); return g_hasARMv7; #endif } /// \brief Determine if an ARM processor has Advanced SIMD available /// \returns true if the hardware is capable of Advanced SIMD at runtime, false otherwise. /// \details Advanced SIMD instructions are available under most ARMv7, Aarch32 and Aarch64. /// \details Runtime support requires compile time support. When compiling with GCC, you may /// need to compile with -mfpu=neon (32-bit) or -march=armv8-a /// (64-bit). Also see ARM's __ARM_NEON preprocessor macro. /// \since Crypto++ 5.6.4 /// \note This function is only available on ARM-32, Aarch32 and Aarch64 platforms inline bool HasNEON() { // ASIMD is a core feature on Aarch32 and Aarch64 like SSE2 is a core feature on x86_64 #if defined(__aarch32__) || defined(__aarch64__) return true; #else if (!g_ArmDetectionDone) DetectArmFeatures(); return g_hasNEON; #endif } /// \brief Determine if an ARM processor provides Polynomial Multiplication /// \returns 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 -march=armv8-a+crypto; while Apple requires /// -arch arm64. Also see ARM's __ARM_FEATURE_CRYPTO preprocessor macro. /// \since Crypto++ 5.6.4 /// \note This function is only available on Aarch32 and Aarch64 platforms inline bool HasPMULL() { #if defined(__aarch32__) || defined(__aarch64__) if (!g_ArmDetectionDone) DetectArmFeatures(); return g_hasPMULL; #else return false; #endif } /// \brief Determine if an ARM processor has CRC32 available /// \returns 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 -march=armv8-a+crc; while Apple requires /// -arch arm64. Also see ARM's __ARM_FEATURE_CRC32 preprocessor macro. /// \since Crypto++ 5.6.4 /// \note This function is only available on Aarch32 and Aarch64 platforms inline bool HasCRC32() { #if defined(__aarch32__) || defined(__aarch64__) if (!g_ArmDetectionDone) DetectArmFeatures(); return g_hasCRC32; #else return false; #endif } /// \brief Determine if an ARM processor has AES available /// \returns 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 -march=armv8-a+crypto; while Apple requires /// -arch arm64. Also see ARM's __ARM_FEATURE_CRYPTO preprocessor macro. /// \since Crypto++ 5.6.4 /// \note This function is only available on Aarch32 and Aarch64 platforms inline bool HasAES() { #if defined(__aarch32__) || defined(__aarch64__) if (!g_ArmDetectionDone) DetectArmFeatures(); return g_hasAES; #else return false; #endif } /// \brief Determine if an ARM processor has SHA1 available /// \returns 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 -march=armv8-a+crypto; while Apple requires /// -arch arm64. Also see ARM's __ARM_FEATURE_CRYPTO preprocessor macro. /// \since Crypto++ 5.6.4 /// \note This function is only available on Aarch32 and Aarch64 platforms inline bool HasSHA1() { #if defined(__aarch32__) || defined(__aarch64__) if (!g_ArmDetectionDone) DetectArmFeatures(); return g_hasSHA1; #else return false; #endif } /// \brief Determine if an ARM processor has SHA256 available /// \returns 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 -march=armv8-a+crypto; while Apple requires /// -arch arm64. Also see ARM's __ARM_FEATURE_CRYPTO preprocessor macro. /// \since Crypto++ 5.6.4 /// \note This function is only available on Aarch32 and Aarch64 platforms inline bool HasSHA2() { #if defined(__aarch32__) || defined(__aarch64__) if (!g_ArmDetectionDone) DetectArmFeatures(); return g_hasSHA2; #else return false; #endif } /// \brief Determine if an ARM processor has SHA512 available /// \returns true if the hardware is capable of SHA512 at runtime, false otherwise. /// \details SHA512 is part of the ARMv8.4 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 -march=armv8.4-a+crypto; while Apple requires /// -arch arm64. Also see ARM's __ARM_FEATURE_CRYPTO preprocessor macro. /// \since Crypto++ 7.1 /// \note This function is only available on Aarch32 and Aarch64 platforms inline bool HasSHA512() { #if defined(__aarch32__) || defined(__aarch64__) if (!g_ArmDetectionDone) DetectArmFeatures(); return g_hasSHA512; #else return false; #endif } /// \brief Determine if an ARM processor has SHA3 available /// \returns true if the hardware is capable of SHA3 at runtime, false otherwise. /// \details SHA3 is part of the ARMv8.4 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 -march=armv8.4-a+crypto; while Apple requires /// -arch arm64. Also see ARM's __ARM_FEATURE_CRYPTO preprocessor macro. /// \since Crypto++ 7.1 /// \note This function is only available on Aarch32 and Aarch64 platforms inline bool HasSHA3() { #if defined(__aarch32__) || defined(__aarch64__) if (!g_ArmDetectionDone) DetectArmFeatures(); return g_hasSHA3; #else return false; #endif } /// \brief Determine if an ARM processor has SM3 available /// \returns true if the hardware is capable of SM3 at runtime, false otherwise. /// \details SM3 is part of the ARMv8.4 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 -march=armv8.4-a+crypto; while Apple requires /// -arch arm64. Also see ARM's __ARM_FEATURE_CRYPTO preprocessor macro. /// \since Crypto++ 7.1 /// \note This function is only available on Aarch32 and Aarch64 platforms inline bool HasSM3() { #if defined(__aarch32__) || defined(__aarch64__) if (!g_ArmDetectionDone) DetectArmFeatures(); return g_hasSM3; #else return false; #endif } /// \brief Determine if an ARM processor has SM4 available /// \returns true if the hardware is capable of SM4 at runtime, false otherwise. /// \details SM4 is part of the ARMv8.4 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 -march=armv8.4-a+crypto; while Apple requires /// -arch arm64. Also see ARM's __ARM_FEATURE_CRYPTO preprocessor macro. /// \since Crypto++ 7.1 /// \note This function is only available on Aarch32 and Aarch64 platforms inline bool HasSM4() { #if defined(__aarch32__) || defined(__aarch64__) 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 /// \returns 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 -mcpu=power4; while IBM XL C/C++ compilers require /// -qarch=pwr6 -qaltivec. Also see PowerPC's _ALTIVEC_ preprocessor macro. /// \note This function is only available on PowerPC and PowerPC-64 platforms inline bool HasAltivec() { if (!g_PowerpcDetectionDone) DetectPowerpcFeatures(); return g_hasAltivec; } /// \brief Determine if a PowerPC processor has Power7 available /// \returns 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 -mcpu=power7; while IBM XL C/C++ compilers require /// -qarch=pwr7 -qaltivec. Also see PowerPC's _ALTIVEC_ preprocessor macro. /// \note This function is only available on PowerPC and PowerPC-64 platforms inline bool HasPower7() { if (!g_PowerpcDetectionDone) DetectPowerpcFeatures(); return g_hasPower7; } /// \brief Determine if a PowerPC processor has Power8 available /// \returns 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 -mcpu=power8; while IBM XL C/C++ compilers require /// -qarch=pwr8 -qaltivec. Also see PowerPC's _ALTIVEC_ preprocessor macro. /// \note This function is only available on PowerPC and PowerPC-64 platforms inline bool HasPower8() { if (!g_PowerpcDetectionDone) DetectPowerpcFeatures(); return g_hasPower8; } /// \brief Determine if a PowerPC processor has Power9 available /// \returns 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 -mcpu=power9; while IBM XL C/C++ compilers require /// -qarch=pwr9 -qaltivec. Also see PowerPC's _ALTIVEC_ preprocessor macro. /// \note This function is only available on PowerPC and PowerPC-64 platforms inline bool HasPower9() { if (!g_PowerpcDetectionDone) DetectPowerpcFeatures(); return g_hasPower9; } /// \brief Determine if a PowerPC processor has AES available /// \returns 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 -mcpu=power8; while IBM XL C/C++ compilers require /// -qarch=pwr8 -qaltivec. Also see PowerPC's __CRYPTO preprocessor macro. /// \note This function is only available on PowerPC and PowerPC-64 platforms inline bool HasAES() { if (!g_PowerpcDetectionDone) DetectPowerpcFeatures(); return g_hasAES; } /// \brief Determine if a PowerPC processor has Polynomial Multiply available /// \returns 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 -mcpu=power8; while IBM XL C/C++ compilers require /// -qarch=pwr8 -qaltivec. Also see PowerPC's __CRYPTO preprocessor macro. /// \note This function is only available on PowerPC and PowerPC-64 platforms inline bool HasPMULL() { if (!g_PowerpcDetectionDone) DetectPowerpcFeatures(); return g_hasPMULL; } /// \brief Determine if a PowerPC processor has SHA256 available /// \returns 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 -mcpu=power8; while IBM XL C/C++ compilers require /// -qarch=pwr8 -qaltivec. Also see PowerPC's __CRYPTO preprocessor macro. /// \note This function is only available on PowerPC and PowerPC-64 platforms inline bool HasSHA256() { if (!g_PowerpcDetectionDone) DetectPowerpcFeatures(); return g_hasSHA256; } /// \brief Determine if a PowerPC processor has SHA512 available /// \returns 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 -mcpu=power8; while IBM XL C/C++ compilers require /// -qarch=pwr8 -qaltivec. Also see PowerPC's __CRYPTO preprocessor macro. /// \note This function is only available on PowerPC and PowerPC-64 platforms inline bool HasSHA512() { if (!g_PowerpcDetectionDone) DetectPowerpcFeatures(); return g_hasSHA512; } /// \brief Determine if a PowerPC processor has DARN available /// \returns 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 -mcpu=power9; while IBM XL C/C++ compilers require /// -qarch=pwr9 -qaltivec. Also see PowerPC's _ALTIVEC_ preprocessor macro. /// \note This function is only available on PowerPC and PowerPC-64 platforms inline bool HasDARN() { if (!g_PowerpcDetectionDone) DetectPowerpcFeatures(); // see comments in cpu.cpp #if defined(__ibmxl__) && defined(__linux__) return false; #else return g_hasDARN; #endif } /// \brief Provides the cache line size /// \returns 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 /// \returns 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} #define CRYPTOPP_NAKED __declspec(naked) #define AS_HEX(y) 0x##y #else // define these in two steps to allow arguments to be expanded #define GNU_AS1(x) #x ";" NEW_LINE #define GNU_AS2(x, y) #x ", " #y ";" NEW_LINE #define GNU_AS3(x, y, z) #x ", " #y ", " #z ";" NEW_LINE #define GNU_ASL(x) "\n" #x ":" NEW_LINE // clang 5.0.0 and apple clang 9.0.0 don't support numerical backward jumps #if (CRYPTOPP_LLVM_CLANG_VERSION >= 50000) || (CRYPTOPP_APPLE_CLANG_VERSION >= 90000) #define GNU_ASJ(x, y, z) ATT_PREFIX ";" NEW_LINE #x " " #y #z ";" NEW_LINE INTEL_PREFIX ";" NEW_LINE #else #define GNU_ASJ(x, y, z) #x " " #y #z ";" NEW_LINE #endif #define AS1(x) GNU_AS1(x) #define AS2(x, y) GNU_AS2(x, y) #define AS3(x, y, z) GNU_AS3(x, y, z) #define ASS(x, y, a, b, c, d) #x ", " #y ", " #a "*64+" #b "*16+" #c "*4+" #d ";" #define ASL(x) GNU_ASL(x) #define ASJ(x, y, z) GNU_ASJ(x, y, z) #define ASC(x, y) #x " " #y ";" #define CRYPTOPP_NAKED #define AS_HEX(y) 0x##y #endif #define IF0(y) #define IF1(y) y #ifdef CRYPTOPP_GENERATE_X64_MASM #define ASM_MOD(x, y) ((x) MOD (y)) #define XMMWORD_PTR XMMWORD PTR #else // GNU assembler doesn't seem to have mod operator #define ASM_MOD(x, y) ((x)-((x)/(y))*(y)) // GAS 2.15 doesn't support XMMWORD PTR. it seems necessary only for MASM #define XMMWORD_PTR #endif #if CRYPTOPP_BOOL_X86 #define AS_REG_1 ecx #define AS_REG_2 edx #define AS_REG_3 esi #define AS_REG_4 edi #define AS_REG_5 eax #define AS_REG_6 ebx #define AS_REG_7 ebp #define AS_REG_1d ecx #define AS_REG_2d edx #define AS_REG_3d esi #define AS_REG_4d edi #define AS_REG_5d eax #define AS_REG_6d ebx #define AS_REG_7d ebp #define WORD_SZ 4 #define WORD_REG(x) e##x #define WORD_PTR DWORD PTR #define AS_PUSH_IF86(x) AS1(push e##x) #define AS_POP_IF86(x) AS1(pop e##x) #define AS_JCXZ jecxz #elif CRYPTOPP_BOOL_X32 #define AS_REG_1 ecx #define AS_REG_2 edx #define AS_REG_3 r8d #define AS_REG_4 r9d #define AS_REG_5 eax #define AS_REG_6 r10d #define AS_REG_7 r11d #define AS_REG_1d ecx #define AS_REG_2d edx #define AS_REG_3d r8d #define AS_REG_4d r9d #define AS_REG_5d eax #define AS_REG_6d r10d #define AS_REG_7d r11d #define WORD_SZ 4 #define WORD_REG(x) e##x #define WORD_PTR DWORD PTR #define AS_PUSH_IF86(x) AS1(push r##x) #define AS_POP_IF86(x) AS1(pop r##x) #define AS_JCXZ jecxz #elif CRYPTOPP_BOOL_X64 #ifdef CRYPTOPP_GENERATE_X64_MASM #define AS_REG_1 rcx #define AS_REG_2 rdx #define AS_REG_3 r8 #define AS_REG_4 r9 #define AS_REG_5 rax #define AS_REG_6 r10 #define AS_REG_7 r11 #define AS_REG_1d ecx #define AS_REG_2d edx #define AS_REG_3d r8d #define AS_REG_4d r9d #define AS_REG_5d eax #define AS_REG_6d r10d #define AS_REG_7d r11d #else #define AS_REG_1 rdi #define AS_REG_2 rsi #define AS_REG_3 rdx #define AS_REG_4 rcx #define AS_REG_5 r8 #define AS_REG_6 r9 #define AS_REG_7 r10 #define AS_REG_1d edi #define AS_REG_2d esi #define AS_REG_3d edx #define AS_REG_4d ecx #define AS_REG_5d r8d #define AS_REG_6d r9d #define AS_REG_7d r10d #endif #define WORD_SZ 8 #define WORD_REG(x) r##x #define WORD_PTR QWORD PTR #define AS_PUSH_IF86(x) #define AS_POP_IF86(x) #define AS_JCXZ jrcxz #endif // helper macro for stream cipher output #define AS_XMM_OUTPUT4(labelPrefix, inputPtr, outputPtr, x0, x1, x2, x3, t, p0, p1, p2, p3, increment)\ AS2( test inputPtr, inputPtr)\ ASC( jz, labelPrefix##3)\ AS2( test inputPtr, 15)\ ASC( jnz, labelPrefix##7)\ AS2( pxor xmm##x0, [inputPtr+p0*16])\ AS2( pxor xmm##x1, [inputPtr+p1*16])\ AS2( pxor xmm##x2, [inputPtr+p2*16])\ AS2( pxor xmm##x3, [inputPtr+p3*16])\ AS2( add inputPtr, increment*16)\ ASC( jmp, labelPrefix##3)\ ASL(labelPrefix##7)\ AS2( movdqu xmm##t, [inputPtr+p0*16])\ AS2( pxor xmm##x0, xmm##t)\ AS2( movdqu xmm##t, [inputPtr+p1*16])\ AS2( pxor xmm##x1, xmm##t)\ AS2( movdqu xmm##t, [inputPtr+p2*16])\ AS2( pxor xmm##x2, xmm##t)\ AS2( movdqu xmm##t, [inputPtr+p3*16])\ AS2( pxor xmm##x3, xmm##t)\ AS2( add inputPtr, increment*16)\ ASL(labelPrefix##3)\ AS2( test outputPtr, 15)\ ASC( jnz, labelPrefix##8)\ AS2( movdqa [outputPtr+p0*16], xmm##x0)\ AS2( movdqa [outputPtr+p1*16], xmm##x1)\ AS2( movdqa [outputPtr+p2*16], xmm##x2)\ AS2( movdqa [outputPtr+p3*16], xmm##x3)\ ASC( jmp, labelPrefix##9)\ ASL(labelPrefix##8)\ AS2( movdqu [outputPtr+p0*16], xmm##x0)\ AS2( movdqu [outputPtr+p1*16], xmm##x1)\ AS2( movdqu [outputPtr+p2*16], xmm##x2)\ AS2( movdqu [outputPtr+p3*16], xmm##x3)\ ASL(labelPrefix##9)\ AS2( add outputPtr, increment*16) #endif // CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64 #endif // Not CRYPTOPP_DOXYGEN_PROCESSING NAMESPACE_END // Issue 340 #if CRYPTOPP_GCC_DIAGNOSTIC_AVAILABLE # pragma GCC diagnostic pop #endif #endif // CRYPTOPP_CPU_H