blob: 5018a1987caca01ea8913906ef1d7f983f6a8eed [file] [log] [blame]
// 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.
package main
// This program produced false race reports when run under the C/C++
// ThreadSanitizer, as it did not understand the synchronization in
// the Go code.
#cgo CFLAGS: -fsanitize=thread
#cgo LDFLAGS: -fsanitize=thread
extern void GoRun(void);
// Yes, you can have definitions if you use //export, as long as they are weak.
int val __attribute__ ((weak));
int run(void) __attribute__ ((weak));
int run() {
val = 1;
return val;
void setVal(int) __attribute__ ((weak));
void setVal(int i) {
val = i;
import "C"
import "runtime"
//export GoRun
func GoRun() {
c := make(chan bool)
go func() {
c <- true
func main() {
if v :=; v != 2 {