[PATCH bpf-next v1 0/4] bpftool, selftests: Add tests for C dump and fix a dropped type

[Ihor Solodrai <ihor.solodrai@linux.dev>]

"bpftool btf dump format c" generates the vmlinux.h that BPF programs
are built against, and it has no direct test coverage. Building
against the header is not a substitute for testing it, nothing a
compiler accepts would break the build.

Patch #3 is an example of a bug that might have been caught by a
dedicated "format c" test.

---

Ihor Solodrai (4):
  selftests/bpf: NUL-terminate bpftool command output
  selftests/bpf: Add tests for bpftool btf dump format c
  bpftool: Don't drop a type in the sorted C dump
  selftests/bpf: Check that sorting preserves types in bpftool dump

 tools/bpf/bpftool/btf.c                       |   6 +-
 tools/testing/selftests/bpf/bpftool_helpers.c |   7 +-
 .../bpf/prog_tests/bpftool_btf_dump.c         | 223 ++++++++++++++++++
 3 files changed, 233 insertions(+), 3 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/prog_tests/bpftool_btf_dump.c

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2.55.0