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| author | David CARLIER <devnexen@gmail.com> | 2020-12-31 14:52:57 +0000 |
|---|---|---|
| committer | Nikita Popov <nikita.ppv@gmail.com> | 2021-01-04 11:41:52 +0100 |
| commit | 6e90c7550759508b394cb15f34699a12ffa61318 (patch) | |
| tree | e4ec376159aa3108a5da8d6334e0e71ad634b4d6 /ext/standard/crc32.c | |
| parent | 151fce1129dd08e16375b2fe16474db448c228c2 (diff) | |
| download | php-git-6e90c7550759508b394cb15f34699a12ffa61318.tar.gz | |
Mac M1 crc32 detection support
Closes GH-6556.
Diffstat (limited to 'ext/standard/crc32.c')
| -rw-r--r-- | ext/standard/crc32.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/ext/standard/crc32.c b/ext/standard/crc32.c index 40d9404053..83f4314b69 100644 --- a/ext/standard/crc32.c +++ b/ext/standard/crc32.c @@ -24,6 +24,8 @@ # if defined(__linux__) # include <sys/auxv.h> # include <asm/hwcap.h> +# elif defined(__APPLE__) +# include <sys/sysctl.h> # endif static inline int has_crc32_insn() { @@ -37,6 +39,10 @@ static inline int has_crc32_insn() { # elif defined(HWCAP2_CRC32) res = getauxval(AT_HWCAP2) & HWCAP2_CRC32; return res; +# elif defined(__APPLE__) + size_t reslen = sizeof(res); + if (sysctlbyname("hw.optional.armv8_crc32", &res, &reslen, NULL, 0) < 0) + res = 0; # else res = 0; return res; |