77 skip_mods_and_typedefs(const struct btf *btf, __u32 id, __u32 *res_id);
464 	struct btf *btf;  member
468 	struct btf *btf_vmlinux;
703 find_member_by_name(const struct btf *btf, const struct btf_type *t,  in find_member_by_name()  argument
710 		if (!strcmp(btf__name_by_offset(btf, m->name_off), name))  in find_member_by_name()
718 static int find_btf_by_prefix_kind(const struct btf *btf, const char *prefix,
722 find_struct_ops_kern_types(const struct btf *btf, const char *tname,  in find_struct_ops_kern_types()  argument
732 	kern_type_id = btf__find_by_name_kind(btf, tname, BTF_KIND_STRUCT);  in find_struct_ops_kern_types()
738 	kern_type = btf__type_by_id(btf, kern_type_id);  in find_struct_ops_kern_types()
745 	kern_vtype_id = find_btf_by_prefix_kind(btf, STRUCT_OPS_VALUE_PREFIX,  in find_struct_ops_kern_types()
752 	kern_vtype = btf__type_by_id(btf, kern_vtype_id);  in find_struct_ops_kern_types()
787 					 const struct btf *btf,  in bpf_map__init_kern_struct_ops()  argument
788 					 const struct btf *kern_btf)  in bpf_map__init_kern_struct_ops()
832 		mname = btf__name_by_offset(btf, member->name_off);  in bpf_map__init_kern_struct_ops()
854 		mtype = skip_mods_and_typedefs(btf, member->type, &mtype_id);  in bpf_map__init_kern_struct_ops()
868 			mtype = skip_mods_and_typedefs(btf, mtype->type, &mtype_id);  in bpf_map__init_kern_struct_ops()
898 		msize = btf__resolve_size(btf, mtype_id);  in bpf_map__init_kern_struct_ops()
928 		err = bpf_map__init_kern_struct_ops(map, obj->btf,  in bpf_object__init_kern_struct_ops_maps()
944 	const struct btf *btf;  in bpf_object__init_struct_ops_maps()  local
951 	btf = obj->btf;  in bpf_object__init_struct_ops_maps()
952 	datasec_id = btf__find_by_name_kind(btf, STRUCT_OPS_SEC,  in bpf_object__init_struct_ops_maps()
960 	datasec = btf__type_by_id(btf, datasec_id);  in bpf_object__init_struct_ops_maps()
963 		type = btf__type_by_id(obj->btf, vsi->type);  in bpf_object__init_struct_ops_maps()
964 		var_name = btf__name_by_offset(obj->btf, type->name_off);  in bpf_object__init_struct_ops_maps()
966 		type_id = btf__resolve_type(obj->btf, vsi->type);  in bpf_object__init_struct_ops_maps()
973 		type = btf__type_by_id(obj->btf, type_id);  in bpf_object__init_struct_ops_maps()
974 		tname = btf__name_by_offset(obj->btf, type->name_off);  in bpf_object__init_struct_ops_maps()
1870 skip_mods_and_typedefs(const struct btf *btf, __u32 id, __u32 *res_id)  in skip_mods_and_typedefs()  argument
1872 	const struct btf_type *t = btf__type_by_id(btf, id);  in skip_mods_and_typedefs()
1880 		t = btf__type_by_id(btf, t->type);  in skip_mods_and_typedefs()
1887 resolve_func_ptr(const struct btf *btf, __u32 id, __u32 *res_id)  in resolve_func_ptr()  argument
1891 	t = skip_mods_and_typedefs(btf, id, NULL);  in resolve_func_ptr()
1895 	t = skip_mods_and_typedefs(btf, t->type, res_id);  in resolve_func_ptr()
1930 static bool get_map_field_int(const char *map_name, const struct btf *btf,  in get_map_field_int()  argument
1933 	const struct btf_type *t = skip_mods_and_typedefs(btf, m->type, NULL);  in get_map_field_int()
1934 	const char *name = btf__name_by_offset(btf, m->name_off);  in get_map_field_int()
1944 	arr_t = btf__type_by_id(btf, t->type);  in get_map_field_int()
1991 		const char *name = btf__name_by_offset(obj->btf, m->name_off);  in parse_btf_map_def()
1998 			if (!get_map_field_int(map->name, obj->btf, m,  in parse_btf_map_def()
2004 			if (!get_map_field_int(map->name, obj->btf, m,  in parse_btf_map_def()
2010 			if (!get_map_field_int(map->name, obj->btf, m,  in parse_btf_map_def()
2016 			if (!get_map_field_int(map->name, obj->btf, m, &map->numa_node))  in parse_btf_map_def()
2022 			if (!get_map_field_int(map->name, obj->btf, m, &sz))  in parse_btf_map_def()
2035 			t = btf__type_by_id(obj->btf, m->type);  in parse_btf_map_def()
2046 			sz = btf__resolve_size(obj->btf, t->type);  in parse_btf_map_def()
2064 			if (!get_map_field_int(map->name, obj->btf, m, &sz))  in parse_btf_map_def()
2077 			t = btf__type_by_id(obj->btf, m->type);  in parse_btf_map_def()
2088 			sz = btf__resolve_size(obj->btf, t->type);  in parse_btf_map_def()
2128 			t = btf__type_by_id(obj->btf, m->type);  in parse_btf_map_def()
2139 			t = skip_mods_and_typedefs(obj->btf, btf_array(t)->type,  in parse_btf_map_def()
2146 			t = skip_mods_and_typedefs(obj->btf, t->type, NULL);  in parse_btf_map_def()
2176 			if (!get_map_field_int(map->name, obj->btf, m, &val))  in parse_btf_map_def()
2227 	var = btf__type_by_id(obj->btf, vi->type);  in bpf_object__init_user_btf_map()
2229 	map_name = btf__name_by_offset(obj->btf, var->name_off);  in bpf_object__init_user_btf_map()
2251 	def = skip_mods_and_typedefs(obj->btf, var->type, NULL);  in bpf_object__init_user_btf_map()
2302 	nr_types = btf__get_nr_types(obj->btf);  in bpf_object__init_user_btf_maps()
2304 		t = btf__type_by_id(obj->btf, i);  in bpf_object__init_user_btf_maps()
2307 		name = btf__name_by_offset(obj->btf, t->name_off);  in bpf_object__init_user_btf_maps()
2373 static void bpf_object__sanitize_btf(struct bpf_object *obj, struct btf *btf)  in bpf_object__sanitize_btf()  argument
2381 	for (i = 1; i <= btf__get_nr_types(btf); i++) {  in bpf_object__sanitize_btf()
2382 		t = (struct btf_type *)btf__type_by_id(btf, i);  in bpf_object__sanitize_btf()
2401 			name = (char *)btf__name_by_offset(btf, t->name_off);  in bpf_object__sanitize_btf()
2415 				vt = (void *)btf__type_by_id(btf, v->type);  in bpf_object__sanitize_btf()
2452 		obj->btf = btf__new(btf_data->d_buf, btf_data->d_size);  in bpf_object__init_btf()
2453 		if (IS_ERR(obj->btf)) {  in bpf_object__init_btf()
2454 			err = PTR_ERR(obj->btf);  in bpf_object__init_btf()
2455 			obj->btf = NULL;  in bpf_object__init_btf()
2461 		btf__set_pointer_size(obj->btf, 8);  in bpf_object__init_btf()
2465 		if (!obj->btf) {  in bpf_object__init_btf()
2491 	if (!obj->btf)  in bpf_object__finalize_btf()
2494 	err = btf__finalize_data(obj, obj->btf);  in bpf_object__finalize_btf()
2563 	struct btf *kern_btf = obj->btf;  in bpf_object__sanitize_and_load_btf()
2567 	if (!obj->btf)  in bpf_object__sanitize_and_load_btf()
2585 		raw_data = btf__get_raw_data(obj->btf, &sz);  in bpf_object__sanitize_and_load_btf()
2591 		btf__set_pointer_size(obj->btf, 8);  in bpf_object__sanitize_and_load_btf()
2599 			btf__set_fd(obj->btf, btf__fd(kern_btf));  in bpf_object__sanitize_and_load_btf()
2952 static int find_extern_btf_id(const struct btf *btf, const char *ext_name)  in find_extern_btf_id()  argument
2958 	if (!btf)  in find_extern_btf_id()
2961 	n = btf__get_nr_types(btf);  in find_extern_btf_id()
2963 		t = btf__type_by_id(btf, i);  in find_extern_btf_id()
2968 		var_name = btf__name_by_offset(btf, t->name_off);  in find_extern_btf_id()
2981 static int find_extern_sec_btf_id(struct btf *btf, int ext_btf_id) {  in find_extern_sec_btf_id()  argument
2986 	if (!btf)  in find_extern_sec_btf_id()
2989 	n = btf__get_nr_types(btf);  in find_extern_sec_btf_id()
2991 		t = btf__type_by_id(btf, i);  in find_extern_sec_btf_id()
3006 static enum kcfg_type find_kcfg_type(const struct btf *btf, int id,  in find_kcfg_type()  argument
3012 	t = skip_mods_and_typedefs(btf, id, NULL);  in find_kcfg_type()
3013 	name = btf__name_by_offset(btf, t->name_off);  in find_kcfg_type()
3040 		if (find_kcfg_type(btf, btf_array(t)->type, NULL) != KCFG_CHAR)  in find_kcfg_type()
3069 static int find_int_btf_id(const struct btf *btf)  in find_int_btf_id()  argument
3074 	n = btf__get_nr_types(btf);  in find_int_btf_id()
3076 		t = btf__type_by_id(btf, i);  in find_int_btf_id()
3125 		ext->btf_id = find_extern_btf_id(obj->btf, ext_name);  in bpf_object__collect_externs()
3131 		t = btf__type_by_id(obj->btf, ext->btf_id);  in bpf_object__collect_externs()
3132 		ext->name = btf__name_by_offset(obj->btf, t->name_off);  in bpf_object__collect_externs()
3136 		ext->sec_btf_id = find_extern_sec_btf_id(obj->btf, ext->btf_id);  in bpf_object__collect_externs()
3142 		sec = (void *)btf__type_by_id(obj->btf, ext->sec_btf_id);  in bpf_object__collect_externs()
3143 		sec_name = btf__name_by_offset(obj->btf, sec->name_off);  in bpf_object__collect_externs()
3148 			ext->kcfg.sz = btf__resolve_size(obj->btf, t->type);  in bpf_object__collect_externs()
3154 			ext->kcfg.align = btf__align_of(obj->btf, t->type);  in bpf_object__collect_externs()
3160 			ext->kcfg.type = find_kcfg_type(obj->btf, t->type,  in bpf_object__collect_externs()
3169 			skip_mods_and_typedefs(obj->btf, t->type,  in bpf_object__collect_externs()
3192 		int int_btf_id = find_int_btf_id(obj->btf);  in bpf_object__collect_externs()
3208 			vt = (void *)btf__type_by_id(obj->btf, vs->type);  in bpf_object__collect_externs()
3209 			ext_name = btf__name_by_offset(obj->btf, vt->name_off);  in bpf_object__collect_externs()
3243 			t = btf__type_by_id(obj->btf, vs->type);  in bpf_object__collect_externs()
3244 			ext_name = btf__name_by_offset(obj->btf, t->name_off);  in bpf_object__collect_externs()
3595 		ret = btf__get_map_kv_tids(obj->btf, map->name, def->key_size,  in bpf_map_find_btf_info()
3603 		ret = btf__find_by_name(obj->btf,  in bpf_map_find_btf_info()
4159 	if (obj->btf && btf__fd(obj->btf) >= 0 && !bpf_map_find_btf_info(obj, map)) {  in bpf_object__create_map()
4160 		create_attr.btf_fd = btf__fd(obj->btf);  in bpf_object__create_map()
4319 	const struct btf *btf;  member
4341 static bool is_flex_arr(const struct btf *btf,  in is_flex_arr()  argument
4352 	t = btf__type_by_id(btf, acc->type_id);  in is_flex_arr()
4451 static int bpf_core_parse_spec(const struct btf *btf,  in bpf_core_parse_spec()  argument
4468 	spec->btf = btf;  in bpf_core_parse_spec()
4494 	t = skip_mods_and_typedefs(btf, type_id, &id);  in bpf_core_parse_spec()
4509 		acc->name = btf__name_by_offset(btf, btf_enum(t)[access_idx].name_off);  in bpf_core_parse_spec()
4516 	sz = btf__resolve_size(btf, id);  in bpf_core_parse_spec()
4522 		t = skip_mods_and_typedefs(btf, id, &id);  in bpf_core_parse_spec()
4541 				name = btf__name_by_offset(btf, m->name_off);  in bpf_core_parse_spec()
4556 			t = skip_mods_and_typedefs(btf, a->type, &id);  in bpf_core_parse_spec()
4560 			flex = is_flex_arr(btf, acc - 1, a);  in bpf_core_parse_spec()
4568 			sz = btf__resolve_size(btf, id);  in bpf_core_parse_spec()
4618 static struct ids_vec *bpf_core_find_cands(const struct btf *local_btf,  in bpf_core_find_cands()
4620 					   const struct btf *targ_btf)  in bpf_core_find_cands()
4693 static int bpf_core_fields_are_compat(const struct btf *local_btf,  in bpf_core_fields_are_compat()
4695 				      const struct btf *targ_btf,  in bpf_core_fields_are_compat()
4762 static int bpf_core_match_member(const struct btf *local_btf,  in bpf_core_match_member()
4764 				 const struct btf *targ_btf,  in bpf_core_match_member()
4853 static int bpf_core_types_are_compat(const struct btf *local_btf, __u32 local_id,  in bpf_core_types_are_compat()
4854 				     const struct btf *targ_btf, __u32 targ_id)  in bpf_core_types_are_compat()
4933 			       const struct btf *targ_btf, __u32 targ_id,  in bpf_core_spec_match()
4942 	targ_spec->btf = targ_btf;  in bpf_core_spec_match()
4947 		return bpf_core_types_are_compat(local_spec->btf,  in bpf_core_spec_match()
4961 		targ_type = skip_mods_and_typedefs(targ_spec->btf, targ_id, &targ_id);  in bpf_core_spec_match()
4968 			targ_name = btf__name_by_offset(targ_spec->btf, e->name_off);  in bpf_core_spec_match()
4989 		targ_type = skip_mods_and_typedefs(targ_spec->btf, targ_id,  in bpf_core_spec_match()
4995 			matched = bpf_core_match_member(local_spec->btf,  in bpf_core_spec_match()
5068 	t = btf__type_by_id(spec->btf, acc->type_id);  in bpf_core_calc_field_relo()
5075 			sz = btf__resolve_size(spec->btf, acc->type_id);  in bpf_core_calc_field_relo()
5081 			sz = btf__resolve_size(spec->btf, acc->type_id);  in bpf_core_calc_field_relo()
5096 	mt = skip_mods_and_typedefs(spec->btf, m->type, &field_type_id);  in bpf_core_calc_field_relo()
5116 		sz = btf__resolve_size(spec->btf, field_type_id);  in bpf_core_calc_field_relo()
5189 		sz = btf__resolve_size(spec->btf, spec->root_type_id);  in bpf_core_calc_type_relo()
5217 		t = btf__type_by_id(spec->btf, spec->spec[0].type_id);  in bpf_core_calc_enumval_relo()
5293 			orig_t = btf__type_by_id(local_spec->btf, res->orig_type_id);  in bpf_core_calc_relo()
5294 			new_t = btf__type_by_id(targ_spec->btf, res->new_type_id);  in bpf_core_calc_relo()
5560 	t = btf__type_by_id(spec->btf, type_id);  in bpf_core_dump_spec()
5561 	s = btf__name_by_offset(spec->btf, t->name_off);  in bpf_core_dump_spec()
5569 		t = skip_mods_and_typedefs(spec->btf, type_id, NULL);  in bpf_core_dump_spec()
5571 		s = btf__name_by_offset(spec->btf, e->name_off);  in bpf_core_dump_spec()
5666 			       const struct btf *local_btf,  in bpf_core_apply_relo()
5667 			       const struct btf *targ_btf,  in bpf_core_apply_relo()
5840 	struct btf *targ_btf;  in bpf_object__relocate_core()
5864 		sec_name = btf__name_by_offset(obj->btf, sec->sec_name_off);  in bpf_object__relocate_core()
5905 			err = bpf_core_apply_relo(prog, rec, i, obj->btf,  in bpf_object__relocate_core()
5999 		sec_name = btf__name_by_offset(obj->btf, sec->sec_name_off);  in adjust_prog_btf_ext_info()
6433 	if (!obj->efile.btf_maps_sec_btf_id || !obj->btf)  in bpf_object__collect_map_relos()
6435 	sec = btf__type_by_id(obj->btf, obj->efile.btf_maps_sec_btf_id);  in bpf_object__collect_map_relos()
6491 		var = btf__type_by_id(obj->btf, vi->type);  in bpf_object__collect_map_relos()
6492 		def = skip_mods_and_typedefs(obj->btf, var->type, NULL);  in bpf_object__collect_map_relos()
6496 		mname = btf__name_by_offset(obj->btf, member->name_off);  in bpf_object__collect_map_relos()
7134 		ret = bpf_core_types_are_compat(obj->btf, local_type_id,  in bpf_object__resolve_ksyms_btf_id()
7140 			local_type = btf__type_by_id(obj->btf, local_type_id);  in bpf_object__resolve_ksyms_btf_id()
7141 			local_name = btf__name_by_offset(obj->btf,  in bpf_object__resolve_ksyms_btf_id()
7880 	btf__free(obj->btf);  in bpf_object__close()
7932 struct btf *bpf_object__btf(const struct bpf_object *obj)  in bpf_object__btf()
7934 	return obj ? obj->btf : NULL;  in bpf_object__btf()
7939 	return obj->btf ? btf__fd(obj->btf) : -1;  in bpf_object__btf_fd()
8480 	const struct btf *btf;  in bpf_object__collect_st_ops_relos()  local
8491 	btf = obj->btf;  in bpf_object__collect_st_ops_relos()
8542 		name = btf__name_by_offset(btf, member->name_off);  in bpf_object__collect_st_ops_relos()
8544 		if (!resolve_func_ptr(btf, member->type, NULL)) {  in bpf_object__collect_st_ops_relos()
8593 static int find_btf_by_prefix_kind(const struct btf *btf, const char *prefix,  in find_btf_by_prefix_kind()  argument
8607 	return btf__find_by_name_kind(btf, btf_type_name, kind);  in find_btf_by_prefix_kind()
8610 static inline int __find_vmlinux_btf_id(struct btf *btf, const char *name,  in __find_vmlinux_btf_id()  argument
8616 		err = find_btf_by_prefix_kind(btf, BTF_TRACE_PREFIX, name,  in __find_vmlinux_btf_id()
8619 		err = find_btf_by_prefix_kind(btf, BTF_LSM_PREFIX, name,  in __find_vmlinux_btf_id()
8622 		err = find_btf_by_prefix_kind(btf, BTF_ITER_PREFIX, name,  in __find_vmlinux_btf_id()
8625 		err = btf__find_by_name_kind(btf, name, BTF_KIND_FUNC);  in __find_vmlinux_btf_id()
8636 	struct btf *btf;  in libbpf_find_vmlinux_btf_id()  local
8639 	btf = libbpf_find_kernel_btf();  in libbpf_find_vmlinux_btf_id()
8640 	if (IS_ERR(btf)) {  in libbpf_find_vmlinux_btf_id()
8645 	err = __find_vmlinux_btf_id(btf, name, attach_type);  in libbpf_find_vmlinux_btf_id()
8646 	btf__free(btf);  in libbpf_find_vmlinux_btf_id()
8654 	struct btf *btf = NULL;  in libbpf_find_prog_btf_id()  local
8668 	if (btf__get_from_id(info->btf_id, &btf)) {  in libbpf_find_prog_btf_id()
8672 	err = btf__find_by_name_kind(btf, name, BTF_KIND_FUNC);  in libbpf_find_prog_btf_id()
8673 	btf__free(btf);  in libbpf_find_prog_btf_id()