43 lines
929 B
C++
43 lines
929 B
C++
// RUN: %clangxx_msan -O0 -std=c++11 -g %s -o %t
|
|
// RUN: %run %t _ 2>&1 | FileCheck %s --check-prefix=CLEAN
|
|
// RUN: not %run %t A 2>&1 | FileCheck %s --check-prefix=A
|
|
// RUN: not %run %t B 2>&1 | FileCheck %s --check-prefix=B
|
|
|
|
#include <assert.h>
|
|
#include <poll.h>
|
|
#include <signal.h>
|
|
#include <stdio.h>
|
|
|
|
#include <sanitizer/msan_interface.h>
|
|
|
|
int main(int argc, char **argv) {
|
|
char T = argv[1][0];
|
|
|
|
struct timespec ts;
|
|
ts.tv_sec = 0;
|
|
ts.tv_nsec = 1000;
|
|
int res = ppoll(nullptr, 0, &ts, nullptr);
|
|
assert(res == 0);
|
|
|
|
if (T == 'A') {
|
|
__msan_poison(&ts.tv_sec, sizeof(ts.tv_sec));
|
|
ppoll(nullptr, 0, &ts, nullptr);
|
|
// A: use-of-uninitialized-value
|
|
}
|
|
|
|
// A-NOT: ==1
|
|
// B: ==1
|
|
fprintf(stderr, "==1\n");
|
|
|
|
sigset_t sig;
|
|
if (T != 'B')
|
|
sigemptyset(&sig);
|
|
ppoll(nullptr, 0, &ts, &sig);
|
|
// B: use-of-uninitialized-value
|
|
|
|
// B-NOT: ==2
|
|
// CLEAN: ==2
|
|
fprintf(stderr, "==2\n");
|
|
return 0;
|
|
}
|