31 lines · cpp
1// RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s2#include "test.h"3#include <signal.h>4#include <sys/types.h>5 6static void handler(int, siginfo_t*, void*) {7 // CHECK: WARNING: ThreadSanitizer: signal-unsafe call inside of a signal8 // CHECK: #0 malloc9 // CHECK: #{{(1|2)}} handler(int, {{(__)?}}siginfo{{(_t)?}}*, void*) {{.*}}signal_malloc.cpp:[[@LINE+2]]10 // CHECK: SUMMARY: ThreadSanitizer: signal-unsafe call inside of a signal{{.*}}handler11 volatile char *p = (char*)malloc(1);12 p[0] = 0;13 // CHECK: WARNING: ThreadSanitizer: signal-unsafe call inside of a signal14 // CHECK: #0 free15 // CHECK: #{{(1|2)}} handler(int, {{(__)?}}siginfo{{(_t)?}}*, void*) {{.*}}signal_malloc.cpp:[[@LINE+2]]16 // CHECK: SUMMARY: ThreadSanitizer: signal-unsafe call inside of a signal{{.*}}handler17 free((void*)p);18}19 20int main() {21 struct sigaction act = {};22 act.sa_sigaction = &handler;23 sigaction(SIGPROF, &act, 0);24 kill(getpid(), SIGPROF);25 sleep(1); // let the signal handler run26 fprintf(stderr, "DONE\n");27 // CHECK: DONE28 return 0;29}30 31