On Fri, Jun 30, 2023 at 1:37 AM Jiri Olsa <jolsa@xxxxxxxxxx> wrote:
>
> Adding uprobe_multi test for bpf_link_create attach function.
>
> Testing attachment using the struct bpf_link_create_opts.
>
> Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
> ---
> .../bpf/prog_tests/uprobe_multi_test.c | 68 +++++++++++++++++++
> 1 file changed, 68 insertions(+)
>
[...]
> + opts.kprobe_multi.flags = BPF_F_UPROBE_MULTI_RETURN;
> + prog_fd = bpf_program__fd(skel->progs.test_uretprobe);
> + link2_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
> + if (!ASSERT_GE(link2_fd, 0, "link2_fd"))
> + goto cleanup;
> +
> + opts.kprobe_multi.flags = 0;
> + prog_fd = bpf_program__fd(skel->progs.test_uprobe_sleep);
> + link3_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
> + if (!ASSERT_GE(link1_fd, 0, "link3_fd"))
link3_fd
> + goto cleanup;
> +
> + opts.kprobe_multi.flags = BPF_F_UPROBE_MULTI_RETURN;
> + prog_fd = bpf_program__fd(skel->progs.test_uretprobe_sleep);
> + link4_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
> + if (!ASSERT_GE(link2_fd, 0, "link4_fd"))
link4_fd
> + goto cleanup;
> + uprobe_multi_test_run(skel);
> +
> +cleanup:
> + if (link1_fd >= 0)
> + close(link1_fd);
> + if (link2_fd >= 0)
> + close(link2_fd);
> + if (link3_fd >= 0)
> + close(link3_fd);
> + if (link4_fd >= 0)
> + close(link4_fd);
> +
> + uprobe_multi__destroy(skel);
> + free(offsets);
> +}
> +
> void test_uprobe_multi_test(void)
> {
> if (test__start_subtest("skel_api"))
> @@ -144,4 +210,6 @@ void test_uprobe_multi_test(void)
> test_attach_api_pattern();
> if (test__start_subtest("attach_api_syms"))
> test_attach_api_syms();
> + if (test__start_subtest("link_api"))
> + test_link_api();
> }
> --
> 2.41.0
>
