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| author | Dave Marchevsky <davemarchevsky@fb.com> | 2021-09-17 11:29:10 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2021-09-17 14:02:06 -0700 |
| commit | 7606729fe24e163923430a5df9d50a246b22d287 (patch) | |
| tree | 3ef4883927fe379215ff359f4a6d226c672e8b86 /tools/testing/selftests/bpf/Makefile | |
| parent | d313d45a226fdc59739c3da05bbd065f71bae5a6 (diff) | |
| download | lwn-7606729fe24e163923430a5df9d50a246b22d287.tar.gz lwn-7606729fe24e163923430a5df9d50a246b22d287.zip | |
selftests/bpf: Add trace_vprintk test prog
This commit adds a test prog for vprintk which confirms that:
* bpf_trace_vprintk is writing to /sys/kernel/debug/tracing/trace_pipe
* __bpf_vprintk macro works as expected
* >3 args are printed
* bpf_printk w/ 0 format args compiles
* bpf_trace_vprintk call w/ a fmt specifier but NULL fmt data fails
Approach and code are borrowed from trace_printk test.
Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210917182911.2426606-9-davemarchevsky@fb.com
Diffstat (limited to 'tools/testing/selftests/bpf/Makefile')
| -rw-r--r-- | tools/testing/selftests/bpf/Makefile | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 1a4d30ff3275..326ea75ce99e 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -315,7 +315,8 @@ LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h \ linked_vars.skel.h linked_maps.skel.h LSKELS := kfunc_call_test.c fentry_test.c fexit_test.c fexit_sleep.c \ - test_ksyms_module.c test_ringbuf.c atomics.c trace_printk.c + test_ksyms_module.c test_ringbuf.c atomics.c trace_printk.c \ + trace_vprintk.c SKEL_BLACKLIST += $$(LSKELS) test_static_linked.skel.h-deps := test_static_linked1.o test_static_linked2.o |