1 files changed, 108 insertions, 0 deletions
diff --git a/src/runtime/testdata/testprogcgo/cgo.go b/src/runtime/testdata/testprogcgo/cgo.go
new file mode 100644
index 0000000..a587db3
--- /dev/null
+++ b/src/runtime/testdata/testprogcgo/cgo.go
@@ -0,0 +1,108 @@
+// 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
+
+/*
+void foo1(void) {}
+void foo2(void* p) {}
+*/
+import "C"
+import (
+	"fmt"
+	"os"
+	"runtime"
+	"strconv"
+	"time"
+	"unsafe"
+)
+
+func init() {
+	register("CgoSignalDeadlock", CgoSignalDeadlock)
+	register("CgoTraceback", CgoTraceback)
+	register("CgoCheckBytes", CgoCheckBytes)
+}
+
+func CgoSignalDeadlock() {
+	runtime.GOMAXPROCS(100)
+	ping := make(chan bool)
+	go func() {
+		for i := 0; ; i++ {
+			runtime.Gosched()
+			select {
+			case done := <-ping:
+				if done {
+					ping <- true
+					return
+				}
+				ping <- true
+			default:
+			}
+			func() {
+				defer func() {
+					recover()
+				}()
+				var s *string
+				*s = ""
+				fmt.Printf("continued after expected panic\n")
+			}()
+		}
+	}()
+	time.Sleep(time.Millisecond)
+	start := time.Now()
+	var times []time.Duration
+	n := 64
+	if os.Getenv("RUNTIME_TEST_SHORT") != "" {
+		n = 16
+	}
+	for i := 0; i < n; i++ {
+		go func() {
+			runtime.LockOSThread()
+			select {}
+		}()
+		go func() {
+			runtime.LockOSThread()
+			select {}
+		}()
+		time.Sleep(time.Millisecond)
+		ping <- false
+		select {
+		case <-ping:
+			times = append(times, time.Since(start))
+		case <-time.After(time.Second):
+			fmt.Printf("HANG 1 %v\n", times)
+			return
+		}
+	}
+	ping <- true
+	select {
+	case <-ping:
+	case <-time.After(time.Second):
+		fmt.Printf("HANG 2 %v\n", times)
+		return
+	}
+	fmt.Printf("OK\n")
+}
+
+func CgoTraceback() {
+	C.foo1()
+	buf := make([]byte, 1)
+	runtime.Stack(buf, true)
+	fmt.Printf("OK\n")
+}
+
+func CgoCheckBytes() {
+	try, _ := strconv.Atoi(os.Getenv("GO_CGOCHECKBYTES_TRY"))
+	if try <= 0 {
+		try = 1
+	}
+	b := make([]byte, 1e6*try)
+	start := time.Now()
+	for i := 0; i < 1e3*try; i++ {
+		C.foo2(unsafe.Pointer(&b[0]))
+		if time.Since(start) > time.Second {
+			break
+		}
+	}
+}