kernel/tools/testing/selftests/bpf/prog_tests/trace_printk.c, branch linux-6.2.y

selftests/bpf: Add weak/typeless ksym test for light skeleton

2021-10-28T23:30:07Z

Also, avoid using CO-RE features, as lskel doesn't support CO-RE, yet. Include both light and libbpf skeleton in same file to test both of them together. In c48e51c8b07a ("bpf: selftests: Add selftests for module kfunc support"), I added support for generating both lskel and libbpf skel for a BPF object, however the name parameter for bpftool caused collisions when included in same file together. This meant that every test needed a separate file for a libbpf/light skeleton separation instead of subtests. Change that by appending a "_lskel" suffix to the name for files using light skeleton, and convert all existing users. Signed-off-by: Kumar Kartikeya Dwivedi Signed-off-by: Alexei Starovoitov Acked-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20211028063501.2239335-7-memxor@gmail.com

selfetest/bpf: Make some tests serial

2021-10-08T22:17:00Z

Change tests that often fails in parallel execution mode to serial. Signed-off-by: Yucong Sun Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20211006185619.364369-15-fallentree@fb.com

selftests/bpf: Migrate prog_tests/trace_printk CHECKs to ASSERTs

2021-09-17T21:02:05Z

Guidance for new tests is to use ASSERT macros instead of CHECK. Since trace_vprintk test will borrow heavily from trace_printk's, migrate its CHECKs so it remains obvious that the two are closely related. Signed-off-by: Dave Marchevsky Signed-off-by: Alexei Starovoitov Acked-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20210917182911.2426606-8-davemarchevsky@fb.com

selftests/bpf: Convert test trace_printk to lskel.

2021-05-18T22:42:20Z

Convert test trace_printk to light skeleton to check rodata support in lskel. Signed-off-by: Alexei Starovoitov Signed-off-by: Daniel Borkmann Acked-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20210514003623.28033-22-alexei.starovoitov@gmail.com

selftests/bpf: Convert test printk to use rodata.

2021-05-18T22:42:08Z

Convert test trace_printk to more aggressively validate and use rodata. Signed-off-by: Alexei Starovoitov Signed-off-by: Daniel Borkmann Acked-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20210514003623.28033-21-alexei.starovoitov@gmail.com

selftests/bpf: Add selftests verifying bpf_trace_printk() behaviour

2020-07-13T23:55:49Z

Simple selftests that verifies bpf_trace_printk() returns a sensible value and tracing messages appear. Signed-off-by: Alan Maguire Signed-off-by: Alexei Starovoitov Acked-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/1594641154-18897-3-git-send-email-alan.maguire@oracle.com