1 // Copyright 2015 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package main 6 7 import "C" 8 9 import ( 10 "fmt" 11 "os" 12 "runtime" 13 ) 14 15 // RunGoroutines starts some goroutines that don't do anything. 16 // The idea is to get some threads going, so that a signal will be delivered 17 // to a thread started by Go. 18 //export RunGoroutines 19 func RunGoroutines() { 20 for i := 0; i < 4; i++ { 21 go func() { 22 runtime.LockOSThread() 23 select {} 24 }() 25 } 26 } 27 28 var P *byte 29 30 // TestSEGV makes sure that an invalid address turns into a run-time Go panic. 31 //export TestSEGV 32 func TestSEGV() { 33 defer func() { 34 if recover() == nil { 35 fmt.Fprintln(os.Stderr, "no panic from segv") 36 os.Exit(1) 37 } 38 }() 39 *P = 0 40 fmt.Fprintln(os.Stderr, "continued after segv") 41 os.Exit(1) 42 } 43 44 // Noop ensures that the Go runtime is initialized. 45 //export Noop 46 func Noop() { 47 } 48 49 func main() { 50 } 51
