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63 lines · 1.7 KiB

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 vice 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}