Adding test to check the unique uprobe attchment together with not-unique uprobe on top perf uprobe pmu.
Signed-off-by: Jiri Olsa <[email protected]> --- .../testing/selftests/bpf/prog_tests/uprobe.c | 111 +++++++++++++++++- 1 file changed, 110 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/prog_tests/uprobe.c b/tools/testing/selftests/bpf/prog_tests/uprobe.c index cf3e0e7a64fa..4e1be03d863d 100644 --- a/tools/testing/selftests/bpf/prog_tests/uprobe.c +++ b/tools/testing/selftests/bpf/prog_tests/uprobe.c @@ -33,7 +33,7 @@ static int urand_trigger(FILE **urand_pipe) return exit_code; } -void test_uprobe(void) +static void test_uprobe_urandlib(void) { LIBBPF_OPTS(bpf_uprobe_opts, uprobe_opts); struct test_uprobe *skel; @@ -93,3 +93,112 @@ void test_uprobe(void) pclose(urand_pipe); test_uprobe__destroy(skel); } + +static noinline void uprobe_unique_trigger(void) +{ + asm volatile (""); +} + +static void test_uprobe_unique(void) +{ + LIBBPF_OPTS(bpf_uprobe_opts, uprobe_opts, + .func_name = "uprobe_unique_trigger", + ); + struct bpf_link *link_1, *link_2 = NULL; + struct bpf_program *prog_1, *prog_2; + struct test_uprobe *skel; + + skel = test_uprobe__open_and_load(); + if (!ASSERT_OK_PTR(skel, "test_uprobe__open_and_load")) + return; + + skel->bss->my_pid = getpid(); + + prog_1 = skel->progs.test1; + prog_2 = skel->progs.test2; + + /* not-unique and unique */ + uprobe_opts.unique = false; + link_1 = bpf_program__attach_uprobe_opts(prog_1, -1, "/proc/self/exe", + 0 /* offset */, &uprobe_opts); + if (!ASSERT_OK_PTR(link_1, "bpf_program__attach_uprobe_opts_1")) + goto cleanup; + + uprobe_opts.unique = true; + link_2 = bpf_program__attach_uprobe_opts(prog_2, -1, "/proc/self/exe", + 0 /* offset */, &uprobe_opts); + if (!ASSERT_ERR_PTR(link_2, "bpf_program__attach_uprobe_opts_2")) { + bpf_link__destroy(link_2); + goto cleanup; + } + + bpf_link__destroy(link_1); + + /* unique and unique */ + uprobe_opts.unique = true; + link_1 = bpf_program__attach_uprobe_opts(prog_1, -1, "/proc/self/exe", + 0 /* offset */, &uprobe_opts); + if (!ASSERT_OK_PTR(link_1, "bpf_program__attach_uprobe_opts_1")) + goto cleanup; + + uprobe_opts.unique = true; + link_2 = bpf_program__attach_uprobe_opts(prog_2, -1, "/proc/self/exe", + 0 /* offset */, &uprobe_opts); + if (!ASSERT_ERR_PTR(link_2, "bpf_program__attach_uprobe_opts_2")) { + bpf_link__destroy(link_2); + goto cleanup; + } + + bpf_link__destroy(link_1); + + /* unique and not-unique */ + uprobe_opts.unique = true; + link_1 = bpf_program__attach_uprobe_opts(prog_1, -1, "/proc/self/exe", + 0 /* offset */, &uprobe_opts); + if (!ASSERT_OK_PTR(link_1, "bpf_program__attach_uprobe_opts_1")) + goto cleanup; + + uprobe_opts.unique = false; + link_2 = bpf_program__attach_uprobe_opts(prog_2, -1, "/proc/self/exe", + 0 /* offset */, &uprobe_opts); + if (!ASSERT_ERR_PTR(link_2, "bpf_program__attach_uprobe_opts_2")) { + bpf_link__destroy(link_2); + goto cleanup; + } + + bpf_link__destroy(link_1); + + /* not-unique and not-unique */ + uprobe_opts.unique = false; + link_1 = bpf_program__attach_uprobe_opts(prog_1, -1, "/proc/self/exe", + 0 /* offset */, &uprobe_opts); + if (!ASSERT_OK_PTR(link_1, "bpf_program__attach_uprobe_opts_1")) + goto cleanup; + + uprobe_opts.unique = false; + link_2 = bpf_program__attach_uprobe_opts(prog_2, -1, "/proc/self/exe", + 0 /* offset */, &uprobe_opts); + if (!ASSERT_OK_PTR(link_2, "bpf_program__attach_uprobe_opts_2")) { + bpf_link__destroy(link_1); + goto cleanup; + } + + uprobe_unique_trigger(); + + ASSERT_EQ(skel->bss->test1_result, 1, "test1_result"); + ASSERT_EQ(skel->bss->test2_result, 1, "test2_result"); + + bpf_link__destroy(link_1); + bpf_link__destroy(link_2); + +cleanup: + test_uprobe__destroy(skel); +} + +void test_uprobe(void) +{ + if (test__start_subtest("urandlib")) + test_uprobe_urandlib(); + if (test__start_subtest("unique")) + test_uprobe_unique(); +} -- 2.51.0
