Fix few tricky issues in libbpf's BTF-to-C converter, discovered thanks to
Per's reports and his randomized testing script.
Most notably there is a much improved and correct padding handling. But also
it turned out that some corner cases with enums weren't handled correctly
(mode(byte) attribute was a new discovery for me). See respective patches for
more details.
Cc: Eduard Zingerman <eddyz87@xxxxxxxxx>
Cc: Per Sundström XP <per.xp.sundstrom@xxxxxxxxxxxx>
Andrii Nakryiko (6):
libbpf: fix single-line struct definition output in btf_dump
libbpf: handle non-standardly sized enums better in BTF-to-C dumper
selftests/bpf: add non-standardly sized enum tests for btf_dump
libbpf: fix btf__align_of() by taking into account field offsets
libbpf: fix BTF-to-C converter's padding logic
selftests/bpf: add few corner cases to test padding handling of
btf_dump
tools/lib/bpf/btf.c | 13 ++
tools/lib/bpf/btf_dump.c | 214 ++++++++++++++----
.../bpf/progs/btf_dump_test_case_bitfields.c | 2 +-
.../bpf/progs/btf_dump_test_case_packing.c | 61 ++++-
.../bpf/progs/btf_dump_test_case_padding.c | 146 ++++++++++--
.../bpf/progs/btf_dump_test_case_syntax.c | 36 +++
6 files changed, 404 insertions(+), 68 deletions(-)
--
2.30.2
