diff options
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/log_fixup.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/log_fixup.c | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/log_fixup.c b/tools/testing/selftests/bpf/prog_tests/log_fixup.c index f4ffdcabf4e4..dba71d98a227 100644 --- a/tools/testing/selftests/bpf/prog_tests/log_fixup.c +++ b/tools/testing/selftests/bpf/prog_tests/log_fixup.c @@ -24,6 +24,7 @@ static void bad_core_relo(size_t log_buf_size, enum trunc_type trunc_type) bpf_program__set_autoload(skel->progs.bad_relo, true); memset(log_buf, 0, sizeof(log_buf)); bpf_program__set_log_buf(skel->progs.bad_relo, log_buf, log_buf_size ?: sizeof(log_buf)); + bpf_program__set_log_level(skel->progs.bad_relo, 1 | 8); /* BPF_LOG_FIXED to force truncation */ err = test_log_fixup__load(skel); if (!ASSERT_ERR(err, "load_fail")) @@ -134,6 +135,35 @@ cleanup: test_log_fixup__destroy(skel); } +static void missing_kfunc(void) +{ + char log_buf[8 * 1024]; + struct test_log_fixup* skel; + int err; + + skel = test_log_fixup__open(); + if (!ASSERT_OK_PTR(skel, "skel_open")) + return; + + bpf_program__set_autoload(skel->progs.use_missing_kfunc, true); + bpf_program__set_log_buf(skel->progs.use_missing_kfunc, log_buf, sizeof(log_buf)); + + err = test_log_fixup__load(skel); + if (!ASSERT_ERR(err, "load_fail")) + goto cleanup; + + ASSERT_HAS_SUBSTR(log_buf, + "0: <invalid kfunc call>\n" + "kfunc 'bpf_nonexistent_kfunc' is referenced but wasn't resolved\n", + "log_buf"); + + if (env.verbosity > VERBOSE_NONE) + printf("LOG: \n=================\n%s=================\n", log_buf); + +cleanup: + test_log_fixup__destroy(skel); +} + void test_log_fixup(void) { if (test__start_subtest("bad_core_relo_trunc_none")) @@ -141,9 +171,11 @@ void test_log_fixup(void) if (test__start_subtest("bad_core_relo_trunc_partial")) bad_core_relo(300, TRUNC_PARTIAL /* truncate original log a bit */); if (test__start_subtest("bad_core_relo_trunc_full")) - bad_core_relo(250, TRUNC_FULL /* truncate also libbpf's message patch */); + bad_core_relo(210, TRUNC_FULL /* truncate also libbpf's message patch */); if (test__start_subtest("bad_core_relo_subprog")) bad_core_relo_subprog(); if (test__start_subtest("missing_map")) missing_map(); + if (test__start_subtest("missing_kfunc")) + missing_kfunc(); } |