1// SPDX-License-Identifier: GPL-2.0
2#include <test_progs.h>
3#include "stacktrace_map_skip.skel.h"
4
5#define TEST_STACK_DEPTH  2
6
7void test_stacktrace_map_skip(void)
8{
9	struct stacktrace_map_skip *skel;
10	int stackid_hmap_fd, stackmap_fd, stack_amap_fd;
11	int err, stack_trace_len;
12
13	skel = stacktrace_map_skip__open_and_load();
14	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
15		return;
16
17	/* find map fds */
18	stackid_hmap_fd = bpf_map__fd(skel->maps.stackid_hmap);
19	if (!ASSERT_GE(stackid_hmap_fd, 0, "stackid_hmap fd"))
20		goto out;
21
22	stackmap_fd = bpf_map__fd(skel->maps.stackmap);
23	if (!ASSERT_GE(stackmap_fd, 0, "stackmap fd"))
24		goto out;
25
26	stack_amap_fd = bpf_map__fd(skel->maps.stack_amap);
27	if (!ASSERT_GE(stack_amap_fd, 0, "stack_amap fd"))
28		goto out;
29
30	skel->bss->pid = getpid();
31
32	err = stacktrace_map_skip__attach(skel);
33	if (!ASSERT_OK(err, "skel_attach"))
34		goto out;
35
36	/* give some time for bpf program run */
37	sleep(1);
38
39	/* disable stack trace collection */
40	skel->bss->control = 1;
41
42	/* for every element in stackid_hmap, we can find a corresponding one
43	 * in stackmap, and vise versa.
44	 */
45	err = compare_map_keys(stackid_hmap_fd, stackmap_fd);
46	if (!ASSERT_OK(err, "compare_map_keys stackid_hmap vs. stackmap"))
47		goto out;
48
49	err = compare_map_keys(stackmap_fd, stackid_hmap_fd);
50	if (!ASSERT_OK(err, "compare_map_keys stackmap vs. stackid_hmap"))
51		goto out;
52
53	stack_trace_len = TEST_STACK_DEPTH * sizeof(__u64);
54	err = compare_stack_ips(stackmap_fd, stack_amap_fd, stack_trace_len);
55	if (!ASSERT_OK(err, "compare_stack_ips stackmap vs. stack_amap"))
56		goto out;
57
58	if (!ASSERT_EQ(skel->bss->failed, 0, "skip_failed"))
59		goto out;
60
61out:
62	stacktrace_map_skip__destroy(skel);
63}
64