runtime: run init on main thread
Fixes #3125.
R=golang-dev, r, minux.ma
CC=golang-dev
https://golang.org/cl/5714049
diff --git a/src/pkg/runtime/runtime_linux_test.go b/src/pkg/runtime/runtime_linux_test.go
new file mode 100644
index 0000000..5344ed2
--- /dev/null
+++ b/src/pkg/runtime/runtime_linux_test.go
@@ -0,0 +1,29 @@
+// Copyright 2012 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 runtime_test
+
+import (
+ . "runtime"
+ "syscall"
+ "testing"
+)
+
+var pid, tid int
+
+func init() {
+ // Record pid and tid of init thread for use during test.
+ // The call to LockOSThread is just to exercise it;
+ // we can't test that it does anything.
+ // Instead we're testing that the conditions are good
+ // for how it is used in init (must be on main thread).
+ pid, tid = syscall.Getpid(), syscall.Gettid()
+ LockOSThread()
+}
+
+func TestLockOSThread(t *testing.T) {
+ if pid != tid {
+ t.Fatalf("pid=%d but tid=%d", pid, tid)
+ }
+}
