Commit e14ef4bf authored by Andrii Nakryiko's avatar Andrii Nakryiko Committed by Alexei Starovoitov
Browse files

libbpf: Expose btf_type_by_id() internally 



btf_type_by_id() is internal-only convenience API returning non-const pointer
to struct btf_type. Expose it outside of btf.c for re-use.

Signed-off-by: default avatarAndrii Nakryiko <andrii@kernel.org>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210318194036.3521577-2-andrii@kernel.org
parent fdc13979

tools/lib/bpf/btf.c

+1 −1
Original line number Diff line number Diff line
@@ -435,7 +435,7 @@ const struct btf *btf__base_btf(const struct btf *btf) 
}



/* internal helper returning non-const pointer to a type */

static struct btf_type *btf_type_by_id(struct btf *btf, __u32 type_id)

struct btf_type *btf_type_by_id(struct btf *btf, __u32 type_id)

{

	if (type_id == 0)

		return &btf_void;

tools/lib/bpf/libbpf_internal.h

+5 −0
Original line number Diff line number Diff line
@@ -107,6 +107,11 @@ static inline void *libbpf_reallocarray(void *ptr, size_t nmemb, size_t size) 
	return realloc(ptr, total);

}



struct btf;

struct btf_type;



struct btf_type *btf_type_by_id(struct btf *btf, __u32 type_id);



void *btf_add_mem(void **data, size_t *cap_cnt, size_t elem_sz,

		  size_t cur_cnt, size_t max_cnt, size_t add_cnt);

int btf_ensure_mem(void **data, size_t *cap_cnt, size_t elem_sz, size_t need_cnt);