97 	struct btf *base_btf;  member
278 	if (btf->base_btf && hdr->str_len == 0)  in btf_parse_str_sec()
284 	if (!btf->base_btf && start[0]) {  in btf_parse_str_sec()
620 	return btf->base_btf;  in btf__base_btf()
629 		return btf_type_by_id(btf->base_btf, type_id);  in btf_type_by_id()
659 	if (btf->base_btf && btf->base_btf->ptr_sz > 0)  in determine_ptr_size()
660 		return btf->base_btf->ptr_sz;  in determine_ptr_size()
976 		btf__free(btf->base_btf);  in btf__free()
980 static struct btf *btf_new_empty(struct btf *base_btf)  in btf_new_empty()  argument
995 	if (base_btf) {  in btf_new_empty()
996 		btf->base_btf = base_btf;  in btf_new_empty()
997 		btf->start_id = btf__type_cnt(base_btf);  in btf_new_empty()
998 		btf->start_str_off = base_btf->hdr->str_len;  in btf_new_empty()
999 		btf->swapped_endian = base_btf->swapped_endian;  in btf_new_empty()
1003 	btf->raw_size = sizeof(struct btf_header) + (base_btf ? 0 : 1);  in btf_new_empty()
1017 	btf->hdr->str_len = base_btf ? 0 : 1; /* empty string at offset 0 */  in btf_new_empty()
1027 struct btf *btf__new_empty_split(struct btf *base_btf)  in btf__new_empty_split()  argument
1029 	return libbpf_ptr(btf_new_empty(base_btf));  in btf__new_empty_split()
1032 static struct btf *btf_new(const void *data, __u32 size, struct btf *base_btf)  in btf_new()  argument
1046 	if (base_btf) {  in btf_new()
1047 		btf->base_btf = base_btf;  in btf_new()
1048 		btf->start_id = btf__type_cnt(base_btf);  in btf_new()
1049 		btf->start_str_off = base_btf->hdr->str_len;  in btf_new()
1088 struct btf *btf__new_split(const void *data, __u32 size, struct btf *base_btf)  in btf__new_split()  argument
1090 	return libbpf_ptr(btf_new(data, size, base_btf));  in btf__new_split()
1165 static struct btf *btf_parse_elf(const char *path, struct btf *base_btf,  in btf_parse_elf()  argument
1213 		      dist_base_btf ?: base_btf);  in btf_parse_elf()
1218 	if (dist_base_btf && base_btf) {  in btf_parse_elf()
1219 		err = btf__relocate(btf, base_btf);  in btf_parse_elf()
1271 struct btf *btf__parse_elf_split(const char *path, struct btf *base_btf)  in btf__parse_elf_split()  argument
1273 	return libbpf_ptr(btf_parse_elf(path, base_btf, NULL));  in btf__parse_elf_split()
1276 static struct btf *btf_parse_raw(const char *path, struct btf *base_btf)  in btf_parse_raw()  argument
1330 	btf = btf_new(data, sz, base_btf);  in btf_parse_raw()
1344 struct btf *btf__parse_raw_split(const char *path, struct btf *base_btf)  in btf__parse_raw_split()  argument
1346 	return libbpf_ptr(btf_parse_raw(path, base_btf));  in btf__parse_raw_split()
1349 static struct btf *btf_parse(const char *path, struct btf *base_btf, struct btf_ext **btf_ext)  in btf_parse()  argument
1357 	btf = btf_parse_raw(path, base_btf);  in btf_parse()
1363 	return btf_parse_elf(path, base_btf, btf_ext);  in btf_parse()
1371 struct btf *btf__parse_split(const char *path, struct btf *base_btf)  in btf__parse_split()  argument
1373 	return libbpf_ptr(btf_parse(path, base_btf, NULL));  in btf__parse_split()
1554 		return btf__str_by_offset(btf->base_btf, offset);  in btf__str_by_offset()
1566 struct btf *btf_get_from_fd(int btf_fd, struct btf *base_btf)  in btf_get_from_fd()  argument
1613 	btf = btf_new(ptr, btf_info.btf_size, base_btf);  in btf_get_from_fd()
1620 struct btf *btf__load_from_kernel_by_id_split(__u32 id, struct btf *base_btf)  in btf__load_from_kernel_by_id_split()  argument
1629 	btf = btf_get_from_fd(btf_fd, base_btf);  in btf__load_from_kernel_by_id_split()
1695 	if (!btf->base_btf && btf->hdr->str_len == 1)  in btf_ensure_modifiable()
1720 	if (btf->base_btf) {  in btf__find_str()
1721 		off = btf__find_str(btf->base_btf, s);  in btf__find_str()
1746 	if (btf->base_btf) {  in btf__add_str()
1747 		off = btf__find_str(btf->base_btf, s);  in btf__add_str()
1878 	if (src_btf->base_btf)  in btf__add_btf()
3563 	if (d->btf->base_btf) {  in strs_dedup_remap_str_off()
3564 		err = btf__find_str(d->btf->base_btf, s);  in strs_dedup_remap_str_off()
3605 	if (!d->btf->base_btf) {  in btf_dedup_strings()
3935 	if (!d->btf->base_btf)  in btf_dedup_prep()
5486 void btf_set_base_btf(struct btf *btf, const struct btf *base_btf)  in btf_set_base_btf()  argument
5488 	btf->base_btf = (struct btf *)base_btf;  in btf_set_base_btf()
5489 	btf->start_id = btf__type_cnt(base_btf);  in btf_set_base_btf()
5490 	btf->start_str_off = base_btf->hdr->str_len;  in btf_set_base_btf()
5493 int btf__relocate(struct btf *btf, const struct btf *base_btf)  in btf__relocate()  argument
5495 	int err = btf_relocate(btf, base_btf, NULL);  in btf__relocate()