Adding upstream version 1.21.8.upstream/1.21.8

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 32 insertions, 0 deletions

diff --git a/src/runtime/msan/msan.go b/src/runtime/msan/msan.go
new file mode 100644
index 0000000..4e41f85
--- /dev/null
+++ b/src/runtime/msan/msan.go
@@ -0,0 +1,32 @@
+// 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.
+
+//go:build msan && ((linux && (amd64 || arm64)) || (freebsd && amd64))
+
+package msan
+
+/*
+#cgo CFLAGS: -fsanitize=memory
+#cgo LDFLAGS: -fsanitize=memory
+
+#include <stdint.h>
+#include <sanitizer/msan_interface.h>
+
+void __msan_read_go(void *addr, uintptr_t sz) {
+	__msan_check_mem_is_initialized(addr, sz);
+}
+
+void __msan_write_go(void *addr, uintptr_t sz) {
+	__msan_unpoison(addr, sz);
+}
+
+void __msan_malloc_go(void *addr, uintptr_t sz) {
+	__msan_unpoison(addr, sz);
+}
+
+void __msan_free_go(void *addr, uintptr_t sz) {
+	__msan_poison(addr, sz);
+}
+*/
+import "C"