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selftests/bpf: Add cookie test for bpf_program__attach_kprobe_multi_opts

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Adding bpf_cookie test for programs attached by
bpf_program__attach_kprobe_multi_opts API.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220316122419.933957-14-jolsa@kernel.org
This commit is contained in:
Jiri Olsa 2022-03-16 13:24:19 +01:00 committed by Alexei Starovoitov
parent 9271a0c7ae
commit 318c812ceb
1 changed files with 68 additions and 0 deletions
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68
tools/testing/selftests/bpf/prog_tests/bpf_cookie.c
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@ -170,6 +170,72 @@ cleanup:
kprobe_multi__destroy(skel);
}
static void kprobe_multi_attach_api_subtest(void)
{
struct bpf_link *link1 = NULL, *link2 = NULL;
LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
LIBBPF_OPTS(bpf_test_run_opts, topts);
struct kprobe_multi *skel = NULL;
const char *syms[8] = {
"bpf_fentry_test1",
"bpf_fentry_test2",
"bpf_fentry_test3",
"bpf_fentry_test4",
"bpf_fentry_test5",
"bpf_fentry_test6",
"bpf_fentry_test7",
"bpf_fentry_test8",
};
__u64 cookies[8];
skel = kprobe_multi__open_and_load();
if (!ASSERT_OK_PTR(skel, "fentry_raw_skel_load"))
goto cleanup;
skel->bss->pid = getpid();
skel->bss->test_cookie = true;
cookies[0] = 1;
cookies[1] = 2;
cookies[2] = 3;
cookies[3] = 4;
cookies[4] = 5;
cookies[5] = 6;
cookies[6] = 7;
cookies[7] = 8;
opts.syms = syms;
opts.cnt = ARRAY_SIZE(syms);
opts.cookies = cookies;
link1 = bpf_program__attach_kprobe_multi_opts(skel->progs.test_kprobe,
NULL, &opts);
if (!ASSERT_OK_PTR(link1, "bpf_program__attach_kprobe_multi_opts"))
goto cleanup;
cookies[0] = 8;
cookies[1] = 7;
cookies[2] = 6;
cookies[3] = 5;
cookies[4] = 4;
cookies[5] = 3;
cookies[6] = 2;
cookies[7] = 1;
opts.retprobe = true;
link2 = bpf_program__attach_kprobe_multi_opts(skel->progs.test_kretprobe,
NULL, &opts);
if (!ASSERT_OK_PTR(link2, "bpf_program__attach_kprobe_multi_opts"))
goto cleanup;
kprobe_multi_test_run(skel);
cleanup:
bpf_link__destroy(link2);
bpf_link__destroy(link1);
kprobe_multi__destroy(skel);
}
static void uprobe_subtest(struct test_bpf_cookie *skel)
{
DECLARE_LIBBPF_OPTS(bpf_uprobe_opts, opts);
@ -358,6 +424,8 @@ void test_bpf_cookie(void)
kprobe_subtest(skel);
if (test__start_subtest("multi_kprobe_link_api"))
kprobe_multi_link_api_subtest();
if (test__start_subtest("multi_kprobe_attach_api"))
kprobe_multi_attach_api_subtest();
if (test__start_subtest("uprobe"))
uprobe_subtest(skel);
if (test__start_subtest("tracepoint"))