diff options
Diffstat (limited to 'vendor/sha-1-0.8.2/src/aarch64.rs')
| -rw-r--r-- | vendor/sha-1-0.8.2/src/aarch64.rs | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/vendor/sha-1-0.8.2/src/aarch64.rs b/vendor/sha-1-0.8.2/src/aarch64.rs new file mode 100644 index 000000000..d3cffecd7 --- /dev/null +++ b/vendor/sha-1-0.8.2/src/aarch64.rs @@ -0,0 +1,9 @@ +// TODO: Import those from libc, see https://github.com/rust-lang/libc/pull/1638 +const AT_HWCAP: u64 = 16; +const HWCAP_SHA1: u64 = 32; + +#[inline(always)] +pub fn sha1_supported() -> bool { + let hwcaps: u64 = unsafe { ::libc::getauxval(AT_HWCAP) }; + (hwcaps & HWCAP_SHA1) != 0 +} |