llvm-project/compiler-rt/test/msan/sigwaitinfo.cc

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// RUN: %clangxx_msan -std=c++11 -O0 -g %s -o %t && %run %t
#include <assert.h>
#include <sanitizer/msan_interface.h>
#include <signal.h>
#include <sys/time.h>
#include <unistd.h>
void test_sigwaitinfo() {
sigset_t s;
sigemptyset(&s);
sigaddset(&s, SIGUSR1);
sigprocmask(SIG_BLOCK, &s, 0);
if (pid_t pid = fork()) {
kill(pid, SIGUSR1);
_exit(0);
} else {
siginfo_t info;
int res = sigwaitinfo(&s, &info);
assert(!res);
// The following checks that sig is initialized.
assert(info.si_signo == SIGUSR1);
assert(-1 == __msan_test_shadow(&info, sizeof(info)));
}
}
int main(void) {
test_sigwaitinfo();
return 0;
}