1 files changed, 46 insertions, 0 deletions
diff --git a/src/runtime/testdata/testprogcgo/gprof.go b/src/runtime/testdata/testprogcgo/gprof.go
new file mode 100644
index 0000000..d453b4d
--- /dev/null
+++ b/src/runtime/testdata/testprogcgo/gprof.go
@@ -0,0 +1,46 @@
+// Copyright 2021 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
+
+// Test taking a goroutine profile with C traceback.
+
+/*
+// Defined in gprof_c.c.
+void CallGoSleep(void);
+void gprofCgoTraceback(void* parg);
+void gprofCgoContext(void* parg);
+*/
+import "C"
+
+import (
+	"fmt"
+	"io"
+	"runtime"
+	"runtime/pprof"
+	"time"
+	"unsafe"
+)
+
+func init() {
+	register("GoroutineProfile", GoroutineProfile)
+}
+
+func GoroutineProfile() {
+	runtime.SetCgoTraceback(0, unsafe.Pointer(C.gprofCgoTraceback), unsafe.Pointer(C.gprofCgoContext), nil)
+
+	go C.CallGoSleep()
+	go C.CallGoSleep()
+	go C.CallGoSleep()
+	time.Sleep(1 * time.Second)
+
+	prof := pprof.Lookup("goroutine")
+	prof.WriteTo(io.Discard, 1)
+	fmt.Println("OK")
+}
+
+//export GoSleep
+func GoSleep() {
+	time.Sleep(time.Hour)
+}