From: Eduard Zingerman <eddyz87@xxxxxxxxx> [ Upstream commit d503f1176b14f722a40ea5110312614982f9a80b ] Structures with zero regular fields but some padding constitute a special case in btf_dump.c:btf_dump_emit_struct_def with regards to newline before closing '}'. Signed-off-by: Eduard Zingerman <eddyz87@xxxxxxxxx> Signed-off-by: Andrii Nakryiko <andrii@xxxxxxxxxx> Link: https://lore.kernel.org/bpf/20221001104425.415768-2-eddyz87@xxxxxxxxx Stable-dep-of: ea2ce1ba99aa ("libbpf: Fix BTF-to-C converter's padding logic") Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- .../selftests/bpf/progs/btf_dump_test_case_padding.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c b/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c index 35c512818a56b..db5458da61826 100644 --- a/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c +++ b/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c @@ -102,12 +102,21 @@ struct zone { struct zone_padding __pad__; }; +/* ----- START-EXPECTED-OUTPUT ----- */ +struct padding_wo_named_members { + long: 64; + long: 64; +}; + +/* ------ END-EXPECTED-OUTPUT ------ */ + int f(struct { struct padded_implicitly _1; struct padded_explicitly _2; struct padded_a_lot _3; struct padded_cache_line _4; struct zone _5; + struct padding_wo_named_members _6; } *_) { return 0; -- 2.39.2
