On Sun, Feb 04, 2024 at 11:40:37AM -0700, Daniel Xu wrote:
> Add a feature flag to guard tagging of kfuncs. The next commit will
> implement the actual tagging.
>
> Signed-off-by: Daniel Xu <dxu@xxxxxxxxx>
> ---
> btf_encoder.c | 2 ++
> dwarves.h | 1 +
> pahole.c | 1 +
> 3 files changed, 4 insertions(+)
we should update man page as well
also we need to update the kernel's scripts/Makefile.btf with
the new option for the next pahole version (1.26 I guess)
jirka
>
> diff --git a/btf_encoder.c b/btf_encoder.c
> index fd04008..e325f66 100644
> --- a/btf_encoder.c
> +++ b/btf_encoder.c
> @@ -77,6 +77,7 @@ struct btf_encoder {
> verbose,
> force,
> gen_floats,
> + tag_kfuncs,
> is_rel;
> uint32_t array_index_id;
> struct {
> @@ -1642,6 +1643,7 @@ struct btf_encoder *btf_encoder__new(struct cu *cu, const char *detached_filenam
> encoder->force = conf_load->btf_encode_force;
> encoder->gen_floats = conf_load->btf_gen_floats;
> encoder->skip_encoding_vars = conf_load->skip_encoding_btf_vars;
> + encoder->tag_kfuncs = conf_load->btf_decl_tag_kfuncs;
> encoder->verbose = verbose;
> encoder->has_index_type = false;
> encoder->need_index_type = false;
> diff --git a/dwarves.h b/dwarves.h
> index 857b37c..996eb70 100644
> --- a/dwarves.h
> +++ b/dwarves.h
> @@ -87,6 +87,7 @@ struct conf_load {
> bool skip_encoding_btf_vars;
> bool btf_gen_floats;
> bool btf_encode_force;
> + bool btf_decl_tag_kfuncs;
> uint8_t hashtable_bits;
> uint8_t max_hashtable_bits;
> uint16_t kabi_prefix_len;
> diff --git a/pahole.c b/pahole.c
> index 768a2fe..48c19b7 100644
> --- a/pahole.c
> +++ b/pahole.c
> @@ -1278,6 +1278,7 @@ struct btf_feature {
> BTF_FEATURE(enum64, skip_encoding_btf_enum64, true),
> BTF_FEATURE(optimized_func, btf_gen_optimized, false),
> BTF_FEATURE(consistent_func, skip_encoding_btf_inconsistent_proto, false),
> + BTF_FEATURE(decl_tag_kfuncs, btf_decl_tag_kfuncs, false),
> };
>
> #define BTF_MAX_FEATURE_STR 1024
> --
> 2.42.1
>
