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| author | gVisor bot <gvisor-bot@google.com> | 2019-10-10 12:46:46 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2019-10-10 12:46:46 -0700 |
| commit | 14952d01fb5fa03a40dbb241b4c12f5a400a3577 (patch) | |
| tree | 247cfaf9f707a2c2fb63b8207479415e37b95c2b /pkg/atomicbitops/atomic_bitops.go | |
| parent | bf870c1a423063eb86a62c6268fe5d83fb6b87ba (diff) | |
| parent | ebbf2b7fbdcda80d158b72276786a4a1dcad664a (diff) | |
Merge pull request #909 from xiaobo55x:atomic_bitsops
PiperOrigin-RevId: 274011064
Diffstat (limited to 'pkg/atomicbitops/atomic_bitops.go')
| -rw-r--r-- | pkg/atomicbitops/atomic_bitops.go | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/pkg/atomicbitops/atomic_bitops.go b/pkg/atomicbitops/atomic_bitops.go index 63aa2b7f1..fcc41a9ea 100644 --- a/pkg/atomicbitops/atomic_bitops.go +++ b/pkg/atomicbitops/atomic_bitops.go @@ -12,11 +12,12 @@ // See the License for the specific language governing permissions and // limitations under the License. -// +build amd64 +// +build amd64 arm64 // Package atomicbitops provides basic bitwise operations in an atomic way. // The implementation on amd64 leverages the LOCK prefix directly instead of -// relying on the generic cas primitives. +// relying on the generic cas primitives, and the arm64 leverages the LDAXR +// and STLXR pair primitives. // // WARNING: the bitwise ops provided in this package doesn't imply any memory // ordering. Using them to construct locks must employ proper memory barriers. |