[PATCH dwarves 0/3] btf_encoder: emit type tags for bpf_arena pointers

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

This patch series implements emitting appropriate BTF type tags for
argument and return types of kfuncs marked with KF_ARENA_* flags.

For additional context see the description of BPF patch
"bpf: define KF_ARENA_* flags for bpf_arena kfuncs" [1].

The feature depends on recent changes in libbpf [2].

[1] https://lore.kernel.org/bpf/20250206003148.2308659-1-ihor.solodrai@linux.dev/
[2] https://lore.kernel.org/bpf/20250130201239.1429648-1-ihor.solodrai@linux.dev/

Ihor Solodrai (3):
  btf_encoder: collect kfuncs info in btf_encoder__new
  btf_encoder: emit type tags for bpf_arena pointers
  pahole: introduce --btf_feature=attributes

 btf_encoder.c | 190 ++++++++++++++++++++++++++++++++++++++++++++------
 dwarves.h     |   1 +
 pahole.c      |  11 +++
 3 files changed, 179 insertions(+), 23 deletions(-)

-- 
2.48.1