go libgo4 源码
golang libgo4 代码
文件路径：/misc/cgo/testcshared/testdata/libgo4/libgo4.go
// 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 "C"
import (
"fmt"
"os"
"runtime"
)
// RunGoroutines starts some goroutines that don't do anything.
// The idea is to get some threads going, so that a signal will be delivered
// to a thread started by Go.
//export RunGoroutines
func RunGoroutines() {
for i := 0; i < 4; i++ {
go func() {
runtime.LockOSThread()
select {}
}()
}
}
var P *byte
// TestSEGV makes sure that an invalid address turns into a run-time Go panic.
//export TestSEGV
func TestSEGV() {
defer func() {
if recover() == nil {
fmt.Fprintln(os.Stderr, "no panic from segv")
os.Exit(1)
}
}()
*P = 0
fmt.Fprintln(os.Stderr, "continued after segv")
os.Exit(1)
}
func main() {
}
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