1 #include "test/jemalloc_test.h"
2
3 #ifdef JEMALLOC_FILL
4 const char *malloc_conf =
5 "abort:false,junk:false,zero:true";
6 #endif
7
8 static void
test_zero(size_t sz_min,size_t sz_max)9 test_zero(size_t sz_min, size_t sz_max)
10 {
11 uint8_t *s;
12 size_t sz_prev, sz, i;
13 #define MAGIC ((uint8_t)0x61)
14
15 sz_prev = 0;
16 s = (uint8_t *)mallocx(sz_min, 0);
17 assert_ptr_not_null((void *)s, "Unexpected mallocx() failure");
18
19 for (sz = sallocx(s, 0); sz <= sz_max;
20 sz_prev = sz, sz = sallocx(s, 0)) {
21 if (sz_prev > 0) {
22 assert_u_eq(s[0], MAGIC,
23 "Previously allocated byte %zu/%zu is corrupted",
24 ZU(0), sz_prev);
25 assert_u_eq(s[sz_prev-1], MAGIC,
26 "Previously allocated byte %zu/%zu is corrupted",
27 sz_prev-1, sz_prev);
28 }
29
30 for (i = sz_prev; i < sz; i++) {
31 assert_u_eq(s[i], 0x0,
32 "Newly allocated byte %zu/%zu isn't zero-filled",
33 i, sz);
34 s[i] = MAGIC;
35 }
36
37 if (xallocx(s, sz+1, 0, 0) == sz) {
38 s = (uint8_t *)rallocx(s, sz+1, 0);
39 assert_ptr_not_null((void *)s,
40 "Unexpected rallocx() failure");
41 }
42 }
43
44 dallocx(s, 0);
45 #undef MAGIC
46 }
47
TEST_BEGIN(test_zero_small)48 TEST_BEGIN(test_zero_small)
49 {
50 test_skip_if(!config_fill);
51 test_zero(1, SMALL_MAXCLASS-1);
52 }
53 TEST_END
54
TEST_BEGIN(test_zero_large)55 TEST_BEGIN(test_zero_large)
56 {
57 test_skip_if(!config_fill);
58 test_zero(SMALL_MAXCLASS+1, (1U << (LG_LARGE_MINCLASS+1)));
59 }
60 TEST_END
61
62 int
main(void)63 main(void)
64 {
65 return (test(
66 test_zero_small,
67 test_zero_large));
68 }
69