1// RUN: %clangxx_msan -std=c++11 -O0 -g %s -o %t && %run %t
2
3#include <assert.h>
4#include <sanitizer/msan_interface.h>
5#include <signal.h>
6#include <sys/time.h>
7#include <unistd.h>
8
9void test_sigwaitinfo() {
10 sigset_t s;
11 sigemptyset(set: &s);
12 sigaddset(set: &s, SIGUSR1);
13 sigprocmask(SIG_BLOCK, set: &s, oset: 0);
14
15 if (pid_t pid = fork()) {
16 kill(pid: pid, SIGUSR1);
17 _exit(status: 0);
18 } else {
19 siginfo_t info;
20 int res = sigwaitinfo(set: &s, info: &info);
21 assert(!res);
22 // The following checks that sig is initialized.
23 assert(info.si_signo == SIGUSR1);
24 assert(-1 == __msan_test_shadow(&info, sizeof(info)));
25 }
26}
27
28int main(void) {
29 test_sigwaitinfo();
30 return 0;
31}
32

source code of compiler-rt/test/msan/sigwaitinfo.cpp