diff options
Diffstat (limited to 'pkg/gohacks/gohacks_unsafe.go')
| -rw-r--r-- | pkg/gohacks/gohacks_unsafe.go | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/pkg/gohacks/gohacks_unsafe.go b/pkg/gohacks/gohacks_unsafe.go index 10bbb1f58..374aac2b4 100644 --- a/pkg/gohacks/gohacks_unsafe.go +++ b/pkg/gohacks/gohacks_unsafe.go @@ -75,3 +75,17 @@ func StringFromImmutableBytes(bs []byte) string { // strings.Builder.String(). return *(*string)(unsafe.Pointer(&bs)) } + +// Note that go:linkname silently doesn't work if the local name is exported, +// necessitating an indirection for exported functions. + +// Memmove is runtime.memmove, exported for SeqAtomicLoad/SeqAtomicTryLoad<T>. +// +//go:nosplit +func Memmove(to, from unsafe.Pointer, n uintptr) { + memmove(to, from, n) +} + +//go:linkname memmove runtime.memmove +//go:noescape +func memmove(to, from unsafe.Pointer, n uintptr) |