1 // Copyright 2017 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 // +build !plan9,!windows 6 7 package main 8 9 /* 10 #include <signal.h> 11 #include <stdlib.h> 12 #include <string.h> 13 14 static void abrthandler(int signum) { 15 if (signum == SIGABRT) { 16 exit(0); // success 17 } 18 } 19 20 void registerAbortHandler() { 21 struct sigaction act; 22 memset(&act, 0, sizeof act); 23 act.sa_handler = abrthandler; 24 sigaction(SIGABRT, &act, NULL); 25 } 26 27 static void __attribute__ ((constructor)) sigsetup(void) { 28 if (getenv("CGOCATCHPANIC_EARLY_HANDLER") == NULL) 29 return; 30 registerAbortHandler(); 31 } 32 */ 33 import "C" 34 import "os" 35 36 func init() { 37 register("CgoCatchPanic", CgoCatchPanic) 38 } 39 40 // Test that the SIGABRT raised by panic can be caught by an early signal handler. 41 func CgoCatchPanic() { 42 if _, ok := os.LookupEnv("CGOCATCHPANIC_EARLY_HANDLER"); !ok { 43 C.registerAbortHandler() 44 } 45 panic("catch me") 46 } 47
