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File indexing completed on 2025-01-18 09:54:55
0001 // config_cpu.h - written and placed in public domain by Jeffrey Walton 0002 // the bits that make up this source file are from the 0003 // library's monolithic config.h. 0004 0005 /// \file config_cpu.h 0006 /// \brief Library configuration file 0007 /// \details <tt>config_cpu.h</tt> provides defines for the cpu and machine 0008 /// architecture. 0009 /// \details <tt>config.h</tt> was split into components in May 2019 to better 0010 /// integrate with Autoconf and its feature tests. The splitting occurred so 0011 /// users could continue to include <tt>config.h</tt> while allowing Autoconf 0012 /// to write new <tt>config_asm.h</tt> and new <tt>config_cxx.h</tt> using 0013 /// its feature tests. 0014 /// \note You should include <tt>config.h</tt> rather than <tt>config_cpu.h</tt> 0015 /// directly. 0016 /// \sa <A HREF="https://github.com/weidai11/cryptopp/issues/835">Issue 835, 0017 /// Make config.h more autoconf friendly</A>, 0018 /// <A HREF="https://www.cryptopp.com/wiki/Configure.sh">Configure.sh script</A> 0019 /// on the Crypto++ wiki, 0020 /// <A HREF="https://sourceforge.net/p/predef/wiki/Architectures/">Sourceforge 0021 /// Pre-defined Compiler Macros</A> 0022 /// \since Crypto++ 8.3 0023 0024 #ifndef CRYPTOPP_CONFIG_CPU_H 0025 #define CRYPTOPP_CONFIG_CPU_H 0026 0027 #include "config_ver.h" 0028 0029 #if defined(CRYPTOPP_DOXYGEN_PROCESSING) 0030 /// \brief 32-bit x32 platform 0031 /// \details CRYPTOPP_BOOL_X32 is defined to 1 when building the library 0032 /// for a 32-bit x32 platform. Otherwise, the macro is not defined. 0033 /// \details x32 is sometimes referred to as x86_32. x32 is the ILP32 data 0034 /// model on a 64-bit cpu. Integers, longs and pointers are 32-bit but the 0035 /// program runs on a 64-bit cpu. 0036 /// \details The significance of x32 is, inline assembly must operate on 0037 /// 64-bit registers, not 32-bit registers. That means, for example, 0038 /// function prologues and epilogues must push and pop RSP, not ESP. 0039 /// \note: Clang defines __ILP32__ on any 32-bit platform. Therefore, 0040 /// CRYPTOPP_BOOL_X32 depends upon both __ILP32__ and __x86_64__. 0041 /// \sa <A HREF="https://wiki.debian.org/X32Port">Debian X32 Port</A>, 0042 /// <A HREF="https://wiki.gentoo.org/wiki/Project:Multilib/Concepts">Gentoo 0043 /// Multilib Concepts</A> 0044 #define CRYPTOPP_BOOL_X32 ... 0045 /// \brief 32-bit x86 platform 0046 /// \details CRYPTOPP_BOOL_X64 is defined to 1 when building the library 0047 /// for a 64-bit x64 platform. Otherwise, the macro is not defined. 0048 #define CRYPTOPP_BOOL_X64 ... 0049 /// \brief 32-bit x86 platform 0050 /// \details CRYPTOPP_BOOL_X86 is defined to 1 when building the library 0051 /// for a 32-bit x86 platform. Otherwise, the macro is not defined. 0052 #define CRYPTOPP_BOOL_X86 ... 0053 #elif (defined(__ILP32__) || defined(_ILP32)) && defined(__x86_64__) 0054 #define CRYPTOPP_BOOL_X32 1 0055 #elif (defined(_M_X64) || defined(__x86_64__)) 0056 #define CRYPTOPP_BOOL_X64 1 0057 #elif (defined(_M_IX86) || defined(__i386__) || defined(__i386) || defined(_X86_) || defined(__I86__) || defined(__INTEL__)) 0058 #define CRYPTOPP_BOOL_X86 1 0059 #endif 0060 0061 #if defined(CRYPTOPP_DOXYGEN_PROCESSING) 0062 /// \brief ARMv8 platform 0063 /// \details CRYPTOPP_BOOL_ARMV8 is defined to 1 when building the library 0064 /// for an ARMv8 platform. Otherwise, the macro is not defined. 0065 /// \details ARMv8 includes both Aarch32 and Aarch64. Aarch32 is a 32-bit 0066 /// execution environment on Aarch64. 0067 #define CRYPTOPP_BOOL_ARMV8 ... 0068 /// \brief 64-bit ARM platform 0069 /// \details CRYPTOPP_BOOL_ARM64 is defined to 1 when building the library 0070 /// for a 64-bit x64 platform. Otherwise, the macro is not defined. 0071 /// \details Currently the macro indicates an ARM 64-bit architecture. 0072 #define CRYPTOPP_BOOL_ARM64 ... 0073 /// \brief 32-bit ARM platform 0074 /// \details CRYPTOPP_BOOL_ARM32 is defined to 1 when building the library 0075 /// for a 32-bit ARM platform. Otherwise, the macro is not defined. 0076 /// \details Currently the macro indicates an ARM A-32 architecture. 0077 #define CRYPTOPP_BOOL_ARM32 ... 0078 #elif defined(__arm64__) || defined(__aarch32__) || defined(__aarch64__) || defined(_M_ARM64) 0079 // Microsoft added ARM64 define December 2017. 0080 #define CRYPTOPP_BOOL_ARMV8 1 0081 #endif 0082 #if defined(__arm64__) || defined(__aarch64__) || defined(_M_ARM64) 0083 #define CRYPTOPP_BOOL_ARM64 1 0084 #elif defined(__arm__) || defined(_M_ARM) 0085 #define CRYPTOPP_BOOL_ARM32 1 0086 #endif 0087 0088 #if defined(CRYPTOPP_DOXYGEN_PROCESSING) 0089 /// \brief 64-bit PowerPC platform 0090 /// \details CRYPTOPP_BOOL_PPC64 is defined to 1 when building the library 0091 /// for a 64-bit PowerPC platform. Otherwise, the macro is not defined. 0092 #define CRYPTOPP_BOOL_PPC64 ... 0093 /// \brief 32-bit PowerPC platform 0094 /// \details CRYPTOPP_BOOL_PPC32 is defined to 1 when building the library 0095 /// for a 32-bit PowerPC platform. Otherwise, the macro is not defined. 0096 #define CRYPTOPP_BOOL_PPC32 ... 0097 #elif defined(__ppc64__) || defined(__powerpc64__) || defined(__PPC64__) || defined(_ARCH_PPC64) 0098 #define CRYPTOPP_BOOL_PPC64 1 0099 #elif defined(__powerpc__) || defined(__ppc__) || defined(__PPC__) || defined(_ARCH_PPC) 0100 #define CRYPTOPP_BOOL_PPC32 1 0101 #endif 0102 0103 #if defined(CRYPTOPP_DOXYGEN_PROCESSING) 0104 /// \brief 64-bit MIPS platform 0105 /// \details CRYPTOPP_BOOL_MIPS64 is defined to 1 when building the library 0106 /// for a 64-bit MIPS platform. Otherwise, the macro is not defined. 0107 #define CRYPTOPP_BOOL_MIPS64 ... 0108 /// \brief 64-bit MIPS platform 0109 /// \details CRYPTOPP_BOOL_MIPS32 is defined to 1 when building the library 0110 /// for a 32-bit MIPS platform. Otherwise, the macro is not defined. 0111 #define CRYPTOPP_BOOL_MIPS32 ... 0112 #elif defined(__mips64__) 0113 #define CRYPTOPP_BOOL_MIPS64 1 0114 #elif defined(__mips__) 0115 #define CRYPTOPP_BOOL_MIPS32 1 0116 #endif 0117 0118 #if defined(CRYPTOPP_DOXYGEN_PROCESSING) 0119 /// \brief 64-bit SPARC platform 0120 /// \details CRYPTOPP_BOOL_SPARC64 is defined to 1 when building the library 0121 /// for a 64-bit SPARC platform. Otherwise, the macro is not defined. 0122 #define CRYPTOPP_BOOL_SPARC64 ... 0123 /// \brief 32-bit SPARC platform 0124 /// \details CRYPTOPP_BOOL_SPARC32 is defined to 1 when building the library 0125 /// for a 32-bit SPARC platform. Otherwise, the macro is not defined. 0126 #define CRYPTOPP_BOOL_SPARC32 ... 0127 #elif defined(__sparc64__) || defined(__sparc64) || defined(__sparcv9) || defined(__sparc_v9__) 0128 #define CRYPTOPP_BOOL_SPARC64 1 0129 #elif defined(__sparc__) || defined(__sparc) || defined(__sparcv8) || defined(__sparc_v8__) 0130 #define CRYPTOPP_BOOL_SPARC32 1 0131 #endif 0132 0133 #if defined(CRYPTOPP_DOXYGEN_PROCESSING) 0134 /// \brief L1 data cache line size 0135 /// \details CRYPTOPP_L1_CACHE_LINE_SIZE should be a lower bound on the L1 0136 /// data cache line size. It is used for defense against some timing attacks. 0137 /// \details CRYPTOPP_L1_CACHE_LINE_SIZE default value on 32-bit platforms 0138 /// is 32, and the default value on 64-bit platforms is 64. On PowerPC the 0139 /// default value is 128 since all PowerPC cpu's starting at PPC 970 provide 0140 /// it. 0141 /// \note The runtime library on some PowerPC platforms misreport the size 0142 /// of the cache line size. The runtime library reports 64, while the cpu 0143 /// has a cache line size of 128. 0144 /// \sa <A HREF="https://bugs.centos.org/view.php?id=14599">CentOS Issue 0145 /// 14599: sysconf(_SC_LEVEL1_DCACHE_LINESIZE) returns 0 instead of 128</A> 0146 /// \since Crypto++ 5.3 0147 #define CRYPTOPP_L1_CACHE_LINE_SIZE ... 0148 #else 0149 #ifndef CRYPTOPP_L1_CACHE_LINE_SIZE 0150 #if defined(CRYPTOPP_BOOL_X32) || defined(CRYPTOPP_BOOL_X64) || defined(CRYPTOPP_BOOL_ARMV8) || \ 0151 defined(CRYPTOPP_BOOL_MIPS64) || defined(CRYPTOPP_BOOL_SPARC64) 0152 #define CRYPTOPP_L1_CACHE_LINE_SIZE 64 0153 #elif defined(CRYPTOPP_BOOL_PPC32) || defined(CRYPTOPP_BOOL_PPC64) 0154 // http://lists.llvm.org/pipermail/llvm-dev/2017-March/110982.html 0155 #define CRYPTOPP_L1_CACHE_LINE_SIZE 128 0156 #else 0157 // L1 cache line size is 32 on Pentium III and earlier 0158 #define CRYPTOPP_L1_CACHE_LINE_SIZE 32 0159 #endif 0160 #endif 0161 #endif 0162 0163 #if defined(CRYPTOPP_DOXYGEN_PROCESSING) 0164 /// \brief Initialized data section 0165 /// \details CRYPTOPP_SECTION_INIT is added to variables to place them in the 0166 /// initialized data section (sometimes denoted <tt>.data</tt>). The placement 0167 /// helps avoid "uninitialized variable" warnings from Valgrind and other tools. 0168 #define CRYPTOPP_SECTION_INIT ... 0169 #else 0170 // The section attribute attempts to initialize CPU flags to avoid Valgrind findings above -O1 0171 #if ((defined(__MACH__) && defined(__APPLE__)) && ((CRYPTOPP_LLVM_CLANG_VERSION >= 30600) || \ 0172 (CRYPTOPP_APPLE_CLANG_VERSION >= 70100) || (CRYPTOPP_GCC_VERSION >= 40300))) 0173 #define CRYPTOPP_SECTION_INIT __attribute__((section ("__DATA,__data"))) 0174 #elif (defined(__ELF__) && (CRYPTOPP_GCC_VERSION >= 40300)) 0175 #define CRYPTOPP_SECTION_INIT __attribute__((section ("nocommon"))) 0176 #elif defined(__ELF__) && (defined(__xlC__) || defined(__ibmxl__)) 0177 #define CRYPTOPP_SECTION_INIT __attribute__((section ("nocommon"))) 0178 #else 0179 #define CRYPTOPP_SECTION_INIT 0180 #endif 0181 #endif 0182 0183 // How to disable CPU feature probing. We determine machine 0184 // capabilities by performing an os/platform *query* first, 0185 // like getauxv(). If the *query* fails, we move onto a 0186 // cpu *probe*. The cpu *probe* tries to exeute an instruction 0187 // and then catches a SIGILL on Linux or the exception 0188 // EXCEPTION_ILLEGAL_INSTRUCTION on Windows. Some OSes 0189 // fail to hangle a SIGILL gracefully, like Apple OSes. Apple 0190 // machines corrupt memory and variables around the probe. 0191 #if defined(__APPLE__) 0192 #define CRYPTOPP_NO_CPU_FEATURE_PROBES 1 0193 #endif 0194 0195 // Flavor of inline assembly language 0196 #if defined(CRYPTOPP_DOXYGEN_PROCESSING) 0197 /// \brief Microsoft style inline assembly 0198 /// \details CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY is defined when either 0199 /// <tt>_MSC_VER</tt> or <tt>__BORLANDC__</tt> are defined. 0200 #define CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY ... 0201 /// \brief GNU style inline assembly 0202 /// \details CRYPTOPP_GNU_STYLE_INLINE_ASSEMBLY is defined when neither 0203 /// <tt>_MSC_VER</tt> nor <tt>__BORLANDC__</tt> are defined. 0204 #define CRYPTOPP_GNU_STYLE_INLINE_ASSEMBLY ... 0205 #elif defined(CRYPTOPP_MSC_VERSION) || defined(__BORLANDC__) || \ 0206 (defined(CRYPTOPP_WIN32_AVAILABLE) && defined(CRYPTOPP_LLVM_CLANG_VERSION)) 0207 #define CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY 1 0208 #else 0209 #define CRYPTOPP_GNU_STYLE_INLINE_ASSEMBLY 1 0210 #endif 0211 0212 #endif // CRYPTOPP_CONFIG_CPU_H
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