mirror of
https://github.com/shadps4-emu/ext-cryptopp.git
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104 lines
4.2 KiB
C
104 lines
4.2 KiB
C
// config_cpu.h - written and placed in public domain by Jeffrey Walton
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// the bits that make up this source file are from the
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// library's monolithic config.h.
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/// \file config_cpu.h
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/// \brief Library configuration file
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/// \details <tt>config.h</tt> was split into components in May 2019 to better
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/// integrate with Autoconf and its feature tests. The splitting occured so
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/// users could continue to include <tt>config.h</tt> while allowing Autoconf
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/// to write new <tt>config_asm.h</tt> and new <tt>config_cxx.h</tt> using
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/// its feature tests.
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/// \sa <A HREF="https://github.com/weidai11/cryptopp/issues/835">Issue 835</A>
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/// <A HREF="https://sourceforge.net/p/predef/wiki/Architectures/">Sourceforge
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/// Pre-defined Compiler Macros</A>
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/// \since Crypto++ 8.3
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#ifndef CRYPTOPP_CONFIG_CPU_H
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#define CRYPTOPP_CONFIG_CPU_H
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#include "config_ver.h"
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#if (defined(__ILP32__) || defined(_ILP32)) && defined(__x86_64__)
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#define CRYPTOPP_BOOL_X32 1
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#elif (defined(_M_X64) || defined(__x86_64__))
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#define CRYPTOPP_BOOL_X64 1
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#elif (defined(_M_IX86) || defined(__i386__) || defined(__i386) || defined(_X86_) || defined(__I86__) || defined(__INTEL__))
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#define CRYPTOPP_BOOL_X86 1
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#endif
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// Microsoft added ARM64 define December 2017.
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#if defined(__arm64__) || defined(__aarch32__) || defined(__aarch64__) || defined(_M_ARM64)
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#define CRYPTOPP_BOOL_ARMV8 1
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#endif
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#if defined(__arm64__) || defined(__aarch64__) || defined(_M_ARM64)
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#define CRYPTOPP_BOOL_ARM64 1
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#elif defined(__arm__) || defined(_M_ARM)
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#define CRYPTOPP_BOOL_ARM32 1
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#endif
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// And PowerPC.
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#if defined(__ppc64__) || defined(__powerpc64__) || defined(__PPC64__) || defined(_ARCH_PPC64)
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#define CRYPTOPP_BOOL_PPC64 1
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#elif defined(__powerpc__) || defined(__ppc__) || defined(__PPC__) || defined(_ARCH_PPC)
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#define CRYPTOPP_BOOL_PPC32 1
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#endif
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// And MIPS. TODO: finish these defines
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#if defined(__mips64__)
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#define CRYPTOPP_BOOL_MIPS64 1
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#elif defined(__mips__)
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#define CRYPTOPP_BOOL_MIPS32 1
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#endif
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// And SPARC.
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#if defined(__sparc64__) || defined(__sparc64) || defined(__sparcv9) || defined(__sparc_v9__)
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#define CRYPTOPP_BOOL_SPARC64 1
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#elif defined(__sparc__) || defined(__sparc) || defined(__sparcv8) || defined(__sparc_v8__)
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#define CRYPTOPP_BOOL_SPARC32 1
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#endif
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// This should be a lower bound on the L1 cache line size.
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// It's used for defense against timing attacks.
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#ifndef CRYPTOPP_L1_CACHE_LINE_SIZE
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#if defined(CRYPTOPP_BOOL_X32) || defined(CRYPTOPP_BOOL_X64) || defined(CRYPTOPP_BOOL_ARMV8) || \
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defined(CRYPTOPP_BOOL_PPC64) || defined(CRYPTOPP_BOOL_MIPS64) || defined(CRYPTOPP_BOOL_SPARC64)
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#define CRYPTOPP_L1_CACHE_LINE_SIZE 64
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#else
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// L1 cache line size is 32 on Pentium III and earlier
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#define CRYPTOPP_L1_CACHE_LINE_SIZE 32
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#endif
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#endif
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// The section attribute attempts to initialize CPU flags to avoid Valgrind findings above -O1
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#if ((defined(__MACH__) && defined(__APPLE__)) && ((CRYPTOPP_LLVM_CLANG_VERSION >= 30600) || (CRYPTOPP_APPLE_CLANG_VERSION >= 70100) || (CRYPTOPP_GCC_VERSION >= 40300)))
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#define CRYPTOPP_SECTION_INIT __attribute__((section ("__DATA,__data")))
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#elif (defined(__ELF__) && (CRYPTOPP_GCC_VERSION >= 40300))
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#define CRYPTOPP_SECTION_INIT __attribute__((section ("nocommon")))
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#elif defined(__ELF__) && (defined(__xlC__) || defined(__ibmxl__))
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#define CRYPTOPP_SECTION_INIT __attribute__((section ("nocommon")))
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#else
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#define CRYPTOPP_SECTION_INIT
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#endif
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// How to disable CPU feature probing. We determine machine
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// capabilities by performing an os/platform *query* first,
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// like getauxv(). If the *query* fails, we move onto a
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// cpu *probe*. The cpu *probe* tries to exeute an instruction
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// and then catches a SIGILL on Linux or the exception
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// EXCEPTION_ILLEGAL_INSTRUCTION on Windows. Some OSes
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// fail to hangle a SIGILL gracefully, like Apple OSes. Apple
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// machines corrupt memory and variables around the probe.
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#if defined(__APPLE__)
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#define CRYPTOPP_NO_CPU_FEATURE_PROBES 1
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#endif
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// Flavor of inline assembly language
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#if defined(_MSC_VER) || defined(__BORLANDC__)
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#define CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY 1
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#else
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#define CRYPTOPP_GNU_STYLE_INLINE_ASSEMBLY 1
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#endif
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#endif
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