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| author | David CARLIER <devnexen@gmail.com> | 2021-01-30 15:04:27 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-01-30 17:04:27 +0200 |
| commit | b1241585b2baf2e62b75febdee2757fc2d3f6488 (patch) | |
| tree | 5f1016bcf62492024dbf05688195f82f1d0a58a8 /mysys/crc32 | |
| parent | 52795c2f7831575b9d6284eaea7dfbb1c39eba90 (diff) | |
| download | mariadb-git-b1241585b2baf2e62b75febdee2757fc2d3f6488.tar.gz | |
Mac M1 build support proposal (minus rocksdb option) (#1743)
Diffstat (limited to 'mysys/crc32')
| -rw-r--r-- | mysys/crc32/crc32_arm64.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/mysys/crc32/crc32_arm64.c b/mysys/crc32/crc32_arm64.c index 02c43c350c8..62606c7ddea 100644 --- a/mysys/crc32/crc32_arm64.c +++ b/mysys/crc32/crc32_arm64.c @@ -4,6 +4,29 @@ #if defined(HAVE_ARMV8_CRC) +#if defined(__APPLE__) +#include <sys/sysctl.h> + +static int pmull_supported; + +int crc32_aarch64_available(void) +{ + int ret; + size_t len = sizeof(ret); + if (sysctlbyname("hw.optional.armv8_crc32", &ret, &len, NULL, 0) == -1) + return 0; + return ret; +} + +const char *crc32c_aarch64_available(void) +{ + if (crc32_aarch64_available() == 0) + return NULL; + pmull_supported = 1; + return "Using ARMv8 crc32 + pmull instructions"; +} + +#else #include <sys/auxv.h> #if defined(__FreeBSD__) static unsigned long getauxval(unsigned int key) @@ -50,6 +73,7 @@ const char *crc32c_aarch64_available(void) return "Using ARMv8 crc32 instructions"; } +#endif /* __APPLE__ */ #endif /* HAVE_ARMV8_CRC */ #ifndef HAVE_ARMV8_CRC_CRYPTO_INTRINSICS |