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main.go
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main.go
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// 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"
/*
#include <signal.h>
#include <stdlib.h>
#include <stdio.h>
int *p;
static void sigsegv() {
*p = 1;
fprintf(stderr, "ERROR: C SIGSEGV not thrown on caught?.\n");
exit(2);
}
static void sighandler(int signum) {
if (signum == SIGSEGV) {
exit(0); // success
}
}
static void __attribute__ ((constructor)) sigsetup(void) {
struct sigaction act;
act.sa_handler = &sighandler;
sigaction(SIGSEGV, &act, 0);
}
*/
import "C"
var p *byte
func f() (ret bool) {
defer func() {
if recover() == nil {
fmt.Errorf("ERROR: couldn't raise SIGSEGV in Go.")
C.exit(2)
}
ret = true
}()
*p = 1
return false
}
func main() {
// Test that the signal originating in Go is handled (and recovered) by Go.
if !f() {
fmt.Errorf("couldn't recover from SIGSEGV in Go.")
C.exit(2)
}
// Test that the signal originating in C is handled by C.
C.sigsegv()
}