| // RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s |
| #include "test.h" |
| #include <signal.h> |
| #include <sys/types.h> |
| |
| static void handler(int, siginfo_t*, void*) { |
| // CHECK: WARNING: ThreadSanitizer: signal-unsafe call inside of a signal |
| // CHECK: #0 malloc |
| // CHECK: #{{(1|2)}} handler(int, {{(__)?}}siginfo{{(_t)?}}*, void*) {{.*}}signal_malloc.cc:[[@LINE+2]] |
| // CHECK: SUMMARY: ThreadSanitizer: signal-unsafe call inside of a signal{{.*}}handler |
| volatile char *p = (char*)malloc(1); |
| p[0] = 0; |
| free((void*)p); |
| } |
| |
| int main() { |
| struct sigaction act = {}; |
| act.sa_sigaction = &handler; |
| sigaction(SIGPROF, &act, 0); |
| kill(getpid(), SIGPROF); |
| sleep(1); // let the signal handler run |
| return 0; |
| } |
| |