1 #include "test/jemalloc_test.h"
2
3 static bool did_prof_dump_open;
4
5 static int
prof_dump_open_intercept(bool propagate_err,const char * filename)6 prof_dump_open_intercept(bool propagate_err, const char *filename) {
7 int fd;
8
9 did_prof_dump_open = true;
10
11 fd = open("/dev/null", O_WRONLY);
12 assert_d_ne(fd, -1, "Unexpected open() failure");
13
14 return fd;
15 }
16
TEST_BEGIN(test_gdump)17 TEST_BEGIN(test_gdump) {
18 bool active, gdump, gdump_old;
19 void *p, *q, *r, *s;
20 size_t sz;
21
22 test_skip_if(!config_prof);
23
24 active = true;
25 assert_d_eq(mallctl("prof.active", NULL, NULL, (void *)&active,
26 sizeof(active)), 0,
27 "Unexpected mallctl failure while activating profiling");
28
29 prof_dump_open = prof_dump_open_intercept;
30
31 did_prof_dump_open = false;
32 p = mallocx((1U << LG_LARGE_MINCLASS), 0);
33 assert_ptr_not_null(p, "Unexpected mallocx() failure");
34 assert_true(did_prof_dump_open, "Expected a profile dump");
35
36 did_prof_dump_open = false;
37 q = mallocx((1U << LG_LARGE_MINCLASS), 0);
38 assert_ptr_not_null(q, "Unexpected mallocx() failure");
39 assert_true(did_prof_dump_open, "Expected a profile dump");
40
41 gdump = false;
42 sz = sizeof(gdump_old);
43 assert_d_eq(mallctl("prof.gdump", (void *)&gdump_old, &sz,
44 (void *)&gdump, sizeof(gdump)), 0,
45 "Unexpected mallctl failure while disabling prof.gdump");
46 assert(gdump_old);
47 did_prof_dump_open = false;
48 r = mallocx((1U << LG_LARGE_MINCLASS), 0);
49 assert_ptr_not_null(q, "Unexpected mallocx() failure");
50 assert_false(did_prof_dump_open, "Unexpected profile dump");
51
52 gdump = true;
53 sz = sizeof(gdump_old);
54 assert_d_eq(mallctl("prof.gdump", (void *)&gdump_old, &sz,
55 (void *)&gdump, sizeof(gdump)), 0,
56 "Unexpected mallctl failure while enabling prof.gdump");
57 assert(!gdump_old);
58 did_prof_dump_open = false;
59 s = mallocx((1U << LG_LARGE_MINCLASS), 0);
60 assert_ptr_not_null(q, "Unexpected mallocx() failure");
61 assert_true(did_prof_dump_open, "Expected a profile dump");
62
63 dallocx(p, 0);
64 dallocx(q, 0);
65 dallocx(r, 0);
66 dallocx(s, 0);
67 }
68 TEST_END
69
70 int
main(void)71 main(void) {
72 return test_no_reentrancy(
73 test_gdump);
74 }
75