Commit ffc68903 authored by Jiri Olsa's avatar Jiri Olsa Committed by Alexei Starovoitov
Browse files

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: default avatarJiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20230809083440.3209381-21-jolsa@kernel.org


Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent 75b37157

tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c

+65 −0
Original line number Diff line number Diff line
@@ -69,8 +69,73 @@ static void test_skel_api(void) 
	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();

}