C/C++ 宏获取当前编译程序工作的CPU指令集平台（综合大全覆盖各类CPU）

xcywt

发布于 2023-07-24 16:36:29

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发布于 2023-07-24 16:36:29

文章被收录于专栏：xcywtxcywt

参考：https://blog.csdn.net/liulilittle/article/details/126644547?spm=1001.2101.3001.6650.6&utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7ERate-6-126644547-blog-43935465.235%5Ev38%5Epc_relevant_default_base3&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7ERate-6-126644547-blog-43935465.235%5Ev38%5Epc_relevant_default_base3&utm_relevant_index=11

可以参考下方连接头文件内的部分代码

Platform.h (apple.com)

GetCipherSuites 函数获取当前缺省SSL/TLS加密算法列表6

ARM64以前跑 chacha20，ARM32的CPU速度快。

    const char* GetCipherSuites() noexcept {
#if !(defined(__aarch64__) || defined(_M_ARM64))
        if (strstr(GetPlatformCode(), "ARM")) {
            return "TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384";
        }
#endif
        return "TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256";
    }

GetPlatformCode 函数获取当前CPU指令集平台

    const char* GetPlatformCode() noexcept {
#if defined(__x86_64__) || defined(_M_X64)
        return "x86_64";
#elif defined(i386) || defined(__i386__) || defined(__i386) || defined(_M_IX86)
        return "x86_32";
#elif defined(__ARM_ARCH_2__)
        return "ARM2";
#elif defined(__ARM_ARCH_3__) || defined(__ARM_ARCH_3M__)
        return "ARM3";
#elif defined(__ARM_ARCH_4T__) || defined(__TARGET_ARM_4T)
        return "ARM4T";
#elif defined(__ARM_ARCH_5_) || defined(__ARM_ARCH_5E_)
        return "ARM5"
#elif defined(__ARM_ARCH_6T2_) || defined(__ARM_ARCH_6T2_)
        return "ARM6T2";
#elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__)
        return "ARM6";
#elif defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7S__)
        return "ARM7";
#elif defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7S__)
        return "ARM7A";
#elif defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7S__)
        return "ARM7R";
#elif defined(__ARM_ARCH_7M__)
        return "ARM7M";
#elif defined(__ARM_ARCH_7S__)
        return "ARM7S";
#elif defined(__aarch64__) || defined(_M_ARM64)
        return "ARM64";
#elif defined(mips) || defined(__mips__) || defined(__mips)
        return "MIPS";
#elif defined(__sh__)
        return "SUPERH";
#elif defined(__powerpc) || defined(__powerpc__) || defined(__powerpc64__) || defined(__POWERPC__) || defined(__ppc__) || defined(__PPC__) || defined(_ARCH_PPC)
        return "POWERPC";
#elif defined(__PPC64__) || defined(__ppc64__) || defined(_ARCH_PPC64)
        return "POWERPC64";
#elif defined(__sparc__) || defined(__sparc)
        return "SPARC";
#elif defined(__m68k__)
        return "M68K";
#elif defined(__s390x__)
        return "S390X";
#else
        return "UNKNOWN";
#endif
    }

实测有用：