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kernel
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linux
selftests/bpf: Add stacktrace ips test for raw_tp
Adding test that verifies we get expected initial 2 entries from
stacktrace for rawtp probe via ORC unwind.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20251104215405.168643-5-jolsa@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
authored by
Jiri Olsa
and committed by
Alexei Starovoitov
3490d299
c9e208fa
+54
+46
tools/testing/selftests/bpf/prog_tests/stacktrace_ips.c
+46
tools/testing/selftests/bpf/prog_tests/stacktrace_ips.c
···
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stacktrace_ips__destroy(skel);
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}
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+
static void test_stacktrace_ips_raw_tp(void)
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{
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__u32 info_len = sizeof(struct bpf_prog_info);
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LIBBPF_OPTS(bpf_test_run_opts, topts);
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struct bpf_prog_info info = {};
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struct stacktrace_ips *skel;
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__u64 bpf_prog_ksym = 0;
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int err;
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skel = stacktrace_ips__open_and_load();
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if (!ASSERT_OK_PTR(skel, "stacktrace_ips__open_and_load"))
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return;
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if (!skel->kconfig->CONFIG_UNWINDER_ORC) {
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test__skip();
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goto cleanup;
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}
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skel->links.rawtp_test = bpf_program__attach_raw_tracepoint(
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skel->progs.rawtp_test,
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"bpf_testmod_test_read");
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if (!ASSERT_OK_PTR(skel->links.rawtp_test, "bpf_program__attach_raw_tracepoint"))
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goto cleanup;
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/* get bpf program address */
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info.jited_ksyms = ptr_to_u64(&bpf_prog_ksym);
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info.nr_jited_ksyms = 1;
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err = bpf_prog_get_info_by_fd(bpf_program__fd(skel->progs.rawtp_test),
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&info, &info_len);
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if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd"))
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goto cleanup;
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trigger_module_test_read(1);
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load_kallsyms();
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check_stacktrace_ips(bpf_map__fd(skel->maps.stackmap), skel->bss->stack_key, 2,
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bpf_prog_ksym,
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ksym_get_addr("bpf_trace_run2"));
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cleanup:
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stacktrace_ips__destroy(skel);
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}
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+
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static void __test_stacktrace_ips(void)
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{
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if (test__start_subtest("kprobe_multi"))
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test_stacktrace_ips_kprobe_multi(false);
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if (test__start_subtest("kretprobe_multi"))
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test_stacktrace_ips_kprobe_multi(true);
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if (test__start_subtest("raw_tp"))
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test_stacktrace_ips_raw_tp();
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}
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#else
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static void __test_stacktrace_ips(void)
+8
tools/testing/selftests/bpf/progs/stacktrace_ips.c
+8
tools/testing/selftests/bpf/progs/stacktrace_ips.c