| // Copyright 2017 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. |
| |
| // +build !plan9,!windows |
| |
| package main |
| |
| /* |
| #include <signal.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| static void abrthandler(int signum) { |
| if (signum == SIGABRT) { |
| exit(0); // success |
| } |
| } |
| |
| void registerAbortHandler() { |
| struct sigaction act; |
| memset(&act, 0, sizeof act); |
| act.sa_handler = abrthandler; |
| sigaction(SIGABRT, &act, NULL); |
| } |
| |
| static void __attribute__ ((constructor)) sigsetup(void) { |
| if (getenv("CGOCATCHPANIC_EARLY_HANDLER") == NULL) |
| return; |
| registerAbortHandler(); |
| } |
| */ |
| import "C" |
| import "os" |
| |
| func init() { |
| register("CgoCatchPanic", CgoCatchPanic) |
| } |
| |
| // Test that the SIGABRT raised by panic can be caught by an early signal handler. |
| func CgoCatchPanic() { |
| if _, ok := os.LookupEnv("CGOCATCHPANIC_EARLY_HANDLER"); !ok { |
| C.registerAbortHandler() |
| } |
| panic("catch me") |
| } |
