Adding test to check the unique uprobe attchment together
with not-unique uprobe on top perf uprobe pmu.
Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
---
.../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
