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selftests/bpf: Add uprobe_multi api test 

Adding uprobe_multi test for bpf_program__attach_uprobe_multi
attach function.

Testing attachment using glob patterns and via bpf_uprobe_multi_opts
paths/syms fields.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20230809083440.3209381-21-jolsa@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Jiri Olsa 2023-08-09 10:34:32 +02:00 committed by Alexei Starovoitov
parent 75b3715720
commit ffc6890361
1 changed files with 65 additions and 0 deletions
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65
tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c
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@ -69,8 +69,73 @@ cleanup:
uprobe_multi__destroy(skel);
}
static void
test_attach_api(const char *binary, const char *pattern, struct bpf_uprobe_multi_opts *opts)
{
struct uprobe_multi *skel = NULL;
skel = uprobe_multi__open_and_load();
if (!ASSERT_OK_PTR(skel, "uprobe_multi__open_and_load"))
goto cleanup;
opts->retprobe = false;
skel->links.uprobe = bpf_program__attach_uprobe_multi(skel->progs.uprobe, -1,
binary, pattern, opts);
if (!ASSERT_OK_PTR(skel->links.uprobe, "bpf_program__attach_uprobe_multi"))
goto cleanup;
opts->retprobe = true;
skel->links.uretprobe = bpf_program__attach_uprobe_multi(skel->progs.uretprobe, -1,
binary, pattern, opts);
if (!ASSERT_OK_PTR(skel->links.uretprobe, "bpf_program__attach_uprobe_multi"))
goto cleanup;
opts->retprobe = false;
skel->links.uprobe_sleep = bpf_program__attach_uprobe_multi(skel->progs.uprobe_sleep, -1,
binary, pattern, opts);
if (!ASSERT_OK_PTR(skel->links.uprobe_sleep, "bpf_program__attach_uprobe_multi"))
goto cleanup;
opts->retprobe = true;
skel->links.uretprobe_sleep = bpf_program__attach_uprobe_multi(skel->progs.uretprobe_sleep,
-1, binary, pattern, opts);
if (!ASSERT_OK_PTR(skel->links.uretprobe_sleep, "bpf_program__attach_uprobe_multi"))
goto cleanup;
uprobe_multi_test_run(skel);
cleanup:
uprobe_multi__destroy(skel);
}
static void test_attach_api_pattern(void)
{
LIBBPF_OPTS(bpf_uprobe_multi_opts, opts);
test_attach_api("/proc/self/exe", "uprobe_multi_func_*", &opts);
test_attach_api("/proc/self/exe", "uprobe_multi_func_?", &opts);
}
static void test_attach_api_syms(void)
{
LIBBPF_OPTS(bpf_uprobe_multi_opts, opts);
const char *syms[3] = {
"uprobe_multi_func_1",
"uprobe_multi_func_2",
"uprobe_multi_func_3",
};
opts.syms = syms;
opts.cnt = ARRAY_SIZE(syms);
test_attach_api("/proc/self/exe", NULL, &opts);
}
void test_uprobe_multi_test(void)
{
if (test__start_subtest("skel_api"))
test_skel_api();
if (test__start_subtest("attach_api_pattern"))
test_attach_api_pattern();
if (test__start_subtest("attach_api_syms"))
test_attach_api_syms();
}