1 // RUN: %clangxx -O0 -g %s -lutil -o %t && %run %t
2 // This test depends on the glibc layout of struct sem_t and checks that we
3 // don't leave sem_t::private uninitialized.
4 // UNSUPPORTED: android
5 #include <assert.h>
6 #include <semaphore.h>
7 #include <string.h>
8
my_sem_init(bool priv,int value,unsigned * a,unsigned char * b)9 void my_sem_init(bool priv, int value, unsigned *a, unsigned char *b) {
10 sem_t sem;
11 memset(&sem, 0xAB, sizeof(sem));
12 sem_init(&sem, priv, value);
13
14 char *p = (char *)&sem;
15 memcpy(a, p, sizeof(unsigned));
16 memcpy(b, p + sizeof(unsigned), sizeof(char));
17
18 sem_destroy(&sem);
19 }
20
main()21 int main() {
22 unsigned a;
23 unsigned char b;
24
25 my_sem_init(false, 42, &a, &b);
26 assert(a == 42);
27 assert(b != 0xAB);
28
29 my_sem_init(true, 43, &a, &b);
30 assert(a == 43);
31 assert(b != 0xAB);
32 }
33