diff options
Diffstat (limited to 'vendor/github.com/tetratelabs/wazero/internal/engine/wazevo/engine_cache.go')
| -rw-r--r-- | vendor/github.com/tetratelabs/wazero/internal/engine/wazevo/engine_cache.go | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/vendor/github.com/tetratelabs/wazero/internal/engine/wazevo/engine_cache.go b/vendor/github.com/tetratelabs/wazero/internal/engine/wazevo/engine_cache.go index f7c0450ae..e49353dc8 100644 --- a/vendor/github.com/tetratelabs/wazero/internal/engine/wazevo/engine_cache.go +++ b/vendor/github.com/tetratelabs/wazero/internal/engine/wazevo/engine_cache.go @@ -31,6 +31,13 @@ func fileCacheKey(m *wasm.Module) (ret filecache.Key) { s := sha256.New() s.Write(m.ID[:]) s.Write(magic) + // Write the CPU features so that we can cache the compiled module for the same CPU. + // This prevents the incompatible CPU features from being used. + cpu := platform.CpuFeatures.Raw() + // Reuse the `ret` buffer to write the first 8 bytes of the CPU features so that we can avoid the allocation. + binary.LittleEndian.PutUint64(ret[:8], cpu) + s.Write(ret[:8]) + // Finally, write the hash to the ret buffer. s.Sum(ret[:0]) return } |