[PATCH dwarves v1 0/2] btf_encoder: KF_IMPLICIT_PROG_AUX_ARG support

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

This series implements KF_IMPLICIT_PROG_AUX_ARG kfunc flag in pahole's
BTF encoding.

The kfunc flag indicates that the last argument of a BPF kfunc is a
pointer to struct bpf_prog_aux implicitly set by the verifier.

BTF function prototype of such a function must omit its last parameter
(expected to be of `struct bpf_prog_aux *` type), despite it being
present in the kernel declaration of the kfunc.

See also a the patch series for BPF:
"bpf: implicit bpf_prog_aux argument for kfuncs"

Ihor Solodrai (2):
  btf_encoder: refactor btf_encoder__add_func_proto
  btf_encoder: implement KF_IMPLICIT_PROG_AUX_ARG kfunc flag handling

 btf_encoder.c | 172 ++++++++++++++++++++++++++++++++++----------------
 1 file changed, 116 insertions(+), 56 deletions(-)

-- 
2.51.0