1 files changed, 66 insertions, 0 deletions
diff --git a/src/runtime/testdata/testprog/crash.go b/src/runtime/testdata/testprog/crash.go
new file mode 100644
index 0000000..c4990cd
--- /dev/null
+++ b/src/runtime/testdata/testprog/crash.go
@@ -0,0 +1,66 @@
+// 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
+
+import (
+	"fmt"
+	"runtime"
+)
+
+func init() {
+	register("Crash", Crash)
+	register("DoublePanic", DoublePanic)
+}
+
+func test(name string) {
+	defer func() {
+		if x := recover(); x != nil {
+			fmt.Printf(" recovered")
+		}
+		fmt.Printf(" done\n")
+	}()
+	fmt.Printf("%s:", name)
+	var s *string
+	_ = *s
+	fmt.Print("SHOULD NOT BE HERE")
+}
+
+func testInNewThread(name string) {
+	c := make(chan bool)
+	go func() {
+		runtime.LockOSThread()
+		test(name)
+		c <- true
+	}()
+	<-c
+}
+
+func Crash() {
+	runtime.LockOSThread()
+	test("main")
+	testInNewThread("new-thread")
+	testInNewThread("second-new-thread")
+	test("main-again")
+}
+
+type P string
+
+func (p P) String() string {
+	// Try to free the "YYY" string header when the "XXX"
+	// panic is stringified.
+	runtime.GC()
+	runtime.GC()
+	runtime.GC()
+	return string(p)
+}
+
+// Test that panic message is not clobbered.
+// See issue 30150.
+func DoublePanic() {
+	defer func() {
+		panic(P("YYY"))
+	}()
+	panic(P("XXX"))
+}