runtime, syscall: add calls to msan functions
Add explicit memory sanitizer instrumentation to the runtime and syscall
packages. The compiler does not instrument the runtime package. It
does instrument the syscall package, but we need to add a couple of
cases that it can't see.
Change-Id: I2d66073f713fe67e33a6720460d2bb8f72f31394
Reviewed-on: https://go-review.googlesource.com/16164
Reviewed-by: David Crawshaw <crawshaw@golang.org>
diff --git a/src/syscall/msan.go b/src/syscall/msan.go
new file mode 100644
index 0000000..edd8d1e
--- /dev/null
+++ b/src/syscall/msan.go
@@ -0,0 +1,22 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build msan
+
+package syscall
+
+import (
+ "runtime"
+ "unsafe"
+)
+
+const msanenabled = true
+
+func msanRead(addr unsafe.Pointer, len int) {
+ runtime.MSanRead(addr, len)
+}
+
+func msanWrite(addr unsafe.Pointer, len int) {
+ runtime.MSanWrite(addr, len)
+}
