selftest/bpf: Add relocatable bitfield reading tests
authorAndrii Nakryiko <andriin@fb.com>
Fri, 1 Nov 2019 22:28:09 +0000 (15:28 -0700)
committerDaniel Borkmann <daniel@iogearbox.net>
Mon, 4 Nov 2019 15:06:56 +0000 (16:06 +0100)
commit8b1cb1c9601f835c025af5b3cf0e98c8048ad30b
tree85f2c8256c7046b8cfdb1d52182c4ae064f6f690
parent94f060e98495e26fd02e18c14e78c61f0d643fd6
selftest/bpf: Add relocatable bitfield reading tests

Add a bunch of selftests verifying correctness of relocatable bitfield reading
support in libbpf. Both bpf_probe_read()-based and direct read-based bitfield
macros are tested. core_reloc.c "test_harness" is extended to support raw
tracepoint and new typed raw tracepoints as test BPF program types.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20191101222810.1246166-5-andriin@fb.com
tools/testing/selftests/bpf/prog_tests/core_reloc.c
tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields.c [new file with mode: 0644]
tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields___bit_sz_change.c [new file with mode: 0644]
tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields___bitfield_vs_int.c [new file with mode: 0644]
tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields___err_too_big_bitfield.c [new file with mode: 0644]
tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields___just_big_enough.c [new file with mode: 0644]
tools/testing/selftests/bpf/progs/core_reloc_types.h
tools/testing/selftests/bpf/progs/test_core_reloc_bitfields_direct.c [new file with mode: 0644]
tools/testing/selftests/bpf/progs/test_core_reloc_bitfields_probed.c [new file with mode: 0644]