diff options
| author | Andrii Nakryiko <andriin@fb.com> | 2019-11-19 16:35:48 -0800 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2019-11-24 16:58:45 -0800 |
| commit | a8fdaad5cfd250b9effcec942b3bf7bc5a6c8b17 (patch) | |
| tree | 5df857b4e1a49deb284ffa7ba42461d6550a2e20 /tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c | |
| parent | 5940c5bf6504f66f57f03f1d0046abfaf2198b3a (diff) | |
selftests/bpf: Integrate verbose verifier log into test_progs
Add exra level of verboseness, activated by -vvv argument. When -vv is
specified, verbose libbpf and verifier log (level 1) is output, even for
successful tests. With -vvv, verifier log goes to level 2.
This is extremely useful to debug verifier failures, as well as just see the
state and flow of verification. Before this, you'd have to go and modify
load_program()'s source code inside libbpf to specify extra log_level flags,
which is suboptimal to say the least.
Currently -vv and -vvv triggering verifier output is integrated into
test_stub's bpf_prog_load as well as bpf_verif_scale.c tests.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191120003548.4159797-1-andriin@fb.com
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c b/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c index 1c01ee2600a9..9486c13af6b2 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c @@ -15,6 +15,8 @@ static int libbpf_debug_print(enum libbpf_print_level level, return 0; } +extern int extra_prog_load_log_flags; + static int check_load(const char *file, enum bpf_prog_type type) { struct bpf_prog_load_attr attr; @@ -24,7 +26,7 @@ static int check_load(const char *file, enum bpf_prog_type type) memset(&attr, 0, sizeof(struct bpf_prog_load_attr)); attr.file = file; attr.prog_type = type; - attr.log_level = 4; + attr.log_level = 4 | extra_prog_load_log_flags; attr.prog_flags = BPF_F_TEST_RND_HI32; err = bpf_prog_load_xattr(&attr, &obj, &prog_fd); bpf_object__close(obj); |