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// RUN: %clangxx_msan -std=c++11 -O0 -g %s -o %t && %run %t
// RUN: %clangxx_msan -DPOSITIVE -std=c++11 -O0 -g %s -o %t && not %run %t 2>&1 | FileCheck %s
#include <assert.h>
#include <signal.h>
#include <sys/time.h>
#include <unistd.h>
#include <sanitizer/msan_interface.h>
void test_sigwait() {
sigset_t s;
#ifndef POSITIVE
sigemptyset(&s);
sigaddset(&s, SIGUSR1);
#endif
sigprocmask(SIG_BLOCK, &s, 0);
// CHECK: MemorySanitizer: use-of-uninitialized-value
if (pid_t pid = fork()) {
kill(pid, SIGUSR1);
_exit(0);
} else {
int sig;
int res = sigwait(&s, &sig);
assert(!res);
// The following checks that sig is initialized.
assert(sig == SIGUSR1);
}
}
int main(void) {
test_sigwait();
return 0;
}
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