diff options
Diffstat (limited to 'libgo/go/runtime/stubs.go')
| -rw-r--r-- | libgo/go/runtime/stubs.go | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/libgo/go/runtime/stubs.go b/libgo/go/runtime/stubs.go index b0c5b38..6d20c38 100644 --- a/libgo/go/runtime/stubs.go +++ b/libgo/go/runtime/stubs.go @@ -89,7 +89,15 @@ func badsystemstack() { // *ptr is uninitialized memory (e.g., memory that's being reused // for a new allocation) and hence contains only "junk". // +// memclrNoHeapPointers ensures that if ptr is pointer-aligned, and n +// is a multiple of the pointer size, then any pointer-aligned, +// pointer-sized portion is cleared atomically. Despite the function +// name, this is necessary because this function is the underlying +// implementation of typedmemclr and memclrHasPointers. See the doc of +// memmove for more details. +// // The (CPU-specific) implementations of this function are in memclr_*.s. +// //go:noescape func memclrNoHeapPointers(ptr unsafe.Pointer, n uintptr) |