mirror of
https://github.com/golang/go
synced 2024-11-24 14:30:17 -07:00
e16f64c094
Otherwise, these tests produce no output, which can make the overall output of all.bash a bit tricky to decipher. Updates #30316 Updates #29062 Change-Id: I33b9e070fd28b9f21ece128e9e603a982c08b7cc Reviewed-on: https://go-review.googlesource.com/c/go/+/208483 Run-TryBot: Bryan C. Mills <bcmills@google.com> Reviewed-by: Jay Conrod <jayconrod@google.com>
115 lines
2.0 KiB
Go
115 lines
2.0 KiB
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 "fmt"
|
|
|
|
/*
|
|
#cgo CFLAGS: -pthread
|
|
#cgo LDFLAGS: -pthread
|
|
|
|
#include <signal.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <pthread.h>
|
|
|
|
int *p;
|
|
static void sigsegv() {
|
|
*p = 1;
|
|
fprintf(stderr, "ERROR: C SIGSEGV not thrown on caught?.\n");
|
|
exit(2);
|
|
}
|
|
|
|
static void segvhandler(int signum) {
|
|
if (signum == SIGSEGV) {
|
|
fprintf(stdout, "ok\ttestsigfwd\n");
|
|
exit(0); // success
|
|
}
|
|
}
|
|
|
|
static volatile sig_atomic_t sigioSeen;
|
|
|
|
// Use up some stack space.
|
|
static void recur(int i, char *p) {
|
|
char a[1024];
|
|
|
|
*p = '\0';
|
|
if (i > 0) {
|
|
recur(i - 1, a);
|
|
}
|
|
}
|
|
|
|
static void iohandler(int signum) {
|
|
char a[1024];
|
|
|
|
recur(4, a);
|
|
sigioSeen = 1;
|
|
}
|
|
|
|
static void* sigioThread(void* arg __attribute__ ((unused))) {
|
|
raise(SIGIO);
|
|
return NULL;
|
|
}
|
|
|
|
static void sigioOnThread() {
|
|
pthread_t tid;
|
|
int i;
|
|
|
|
pthread_create(&tid, NULL, sigioThread, NULL);
|
|
pthread_join(tid, NULL);
|
|
|
|
// Wait until the signal has been delivered.
|
|
i = 0;
|
|
while (!sigioSeen) {
|
|
if (sched_yield() < 0) {
|
|
perror("sched_yield");
|
|
}
|
|
i++;
|
|
if (i > 10000) {
|
|
fprintf(stderr, "looping too long waiting for signal\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void __attribute__ ((constructor)) sigsetup(void) {
|
|
struct sigaction act;
|
|
|
|
memset(&act, 0, sizeof act);
|
|
act.sa_handler = segvhandler;
|
|
sigaction(SIGSEGV, &act, NULL);
|
|
|
|
act.sa_handler = iohandler;
|
|
sigaction(SIGIO, &act, NULL);
|
|
}
|
|
*/
|
|
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()
|
|
}
|