[PATCH v2 bpf-next 0/5] libbpf: BTF field iterator

[Andrii Nakryiko <andrii@xxxxxxxxxx>]

Add BTF field (type and string fields, right now) iterator support instead of
using existing callback-based approaches, which make it harder to understand
and support BTF-processing code.

v1->v2:
  - t_cnt -> t_off_cnt, m_cnt -> m_off_cnt (Eduard);
  - simpified code in linker.c (Jiri);
rfcv1->v1:
  - check errors when initializing iterators (Jiri);
  - split RFC patch into separate patches.

Andrii Nakryiko (5):
  libbpf: add BTF field iterator
  libbpf: make use of BTF field iterator in BPF linker code
  libbpf: make use of BTF field iterator in BTF handling code
  bpftool: use BTF field iterator in btfgen
  libbpf: remove callback-based type/string BTF field visitor helpers

 tools/bpf/bpftool/gen.c         |  16 +-
 tools/lib/bpf/btf.c             | 328 +++++++++++++++++++-------------
 tools/lib/bpf/libbpf_internal.h |  26 ++-
 tools/lib/bpf/linker.c          |  58 +++---
 4 files changed, 262 insertions(+), 166 deletions(-)

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2.43.0