265 			struct bpf_core_spec *spec)  in bpf_core_parse_spec()  argument
278 	memset(spec, 0, sizeof(*spec));  in bpf_core_parse_spec()
279 	spec->btf = btf;  in bpf_core_parse_spec()
280 	spec->root_type_id = relo->type_id;  in bpf_core_parse_spec()
281 	spec->relo_kind = relo->kind;  in bpf_core_parse_spec()
296 		if (spec->raw_len == BPF_CORE_SPEC_MAX_LEN)  in bpf_core_parse_spec()
299 		spec->raw_spec[spec->raw_len++] = access_idx;  in bpf_core_parse_spec()
302 	if (spec->raw_len == 0)  in bpf_core_parse_spec()
309 	access_idx = spec->raw_spec[0];  in bpf_core_parse_spec()
310 	acc = &spec->spec[0];  in bpf_core_parse_spec()
313 	spec->len++;  in bpf_core_parse_spec()
316 		if (!btf_is_any_enum(t) || spec->raw_len > 1 || access_idx >= btf_vlen(t))  in bpf_core_parse_spec()
332 	spec->bit_offset = access_idx * sz * 8;  in bpf_core_parse_spec()
334 	for (i = 1; i < spec->raw_len; i++) {  in bpf_core_parse_spec()
339 		access_idx = spec->raw_spec[i];  in bpf_core_parse_spec()
340 		acc = &spec->spec[spec->len];  in bpf_core_parse_spec()
350 			spec->bit_offset += bit_offset;  in bpf_core_parse_spec()
361 				spec->len++;  in bpf_core_parse_spec()
377 			spec->spec[spec->len].type_id = id;  in bpf_core_parse_spec()
378 			spec->spec[spec->len].idx = access_idx;  in bpf_core_parse_spec()
379 			spec->len++;  in bpf_core_parse_spec()
384 			spec->bit_offset += access_idx * sz * 8;  in bpf_core_parse_spec()
485 				 struct bpf_core_spec *spec,  in bpf_core_match_member()  argument
513 		if (spec->raw_len == BPF_CORE_SPEC_MAX_LEN)  in bpf_core_match_member()
517 		spec->bit_offset += bit_offset;  in bpf_core_match_member()
518 		spec->raw_spec[spec->raw_len++] = i;  in bpf_core_match_member()
525 						      spec, next_targ_id);  in bpf_core_match_member()
532 			targ_acc = &spec->spec[spec->len++];  in bpf_core_match_member()
542 				spec->len--; /* pop accessor */  in bpf_core_match_member()
546 		spec->bit_offset -= bit_offset;  in bpf_core_match_member()
547 		spec->raw_len--;  in bpf_core_match_member()
583 	local_acc = &local_spec->spec[0];  in bpf_core_spec_match()
584 	targ_acc = &targ_spec->spec[0];  in bpf_core_spec_match()
680 				    const struct bpf_core_spec *spec,  in bpf_core_calc_field_relo()  argument
695 		*val = spec ? 1 : 0;  in bpf_core_calc_field_relo()
699 	if (!spec)  in bpf_core_calc_field_relo()
702 	acc = &spec->spec[spec->len - 1];  in bpf_core_calc_field_relo()
703 	t = btf_type_by_id(spec->btf, acc->type_id);  in bpf_core_calc_field_relo()
708 			*val = spec->bit_offset / 8;  in bpf_core_calc_field_relo()
710 			sz = btf__resolve_size(spec->btf, acc->type_id);  in bpf_core_calc_field_relo()
716 			sz = btf__resolve_size(spec->btf, acc->type_id);  in bpf_core_calc_field_relo()
731 	mt = skip_mods_and_typedefs(spec->btf, m->type, &field_type_id);  in bpf_core_calc_field_relo()
732 	bit_off = spec->bit_offset;  in bpf_core_calc_field_relo()
751 		sz = btf__resolve_size(spec->btf, field_type_id);  in bpf_core_calc_field_relo()
755 		byte_off = spec->bit_offset / 8;  in bpf_core_calc_field_relo()
804 				   const struct bpf_core_spec *spec,  in bpf_core_calc_type_relo()  argument
814 	if (!spec) {  in bpf_core_calc_type_relo()
821 		*val = spec->root_type_id;  in bpf_core_calc_type_relo()
833 		sz = btf__resolve_size(spec->btf, spec->root_type_id);  in bpf_core_calc_type_relo()
848 				      const struct bpf_core_spec *spec,  in bpf_core_calc_enumval_relo()  argument
855 		*val = spec ? 1 : 0;  in bpf_core_calc_enumval_relo()
858 		if (!spec)  in bpf_core_calc_enumval_relo()
860 		t = btf_type_by_id(spec->btf, spec->spec[0].type_id);  in bpf_core_calc_enumval_relo()
862 			*val = btf_enum(t)[spec->spec[0].idx].val;  in bpf_core_calc_enumval_relo()
864 			*val = btf_enum64_value(btf_enum64(t) + spec->spec[0].idx);  in bpf_core_calc_enumval_relo()
1156 int bpf_core_format_spec(char *buf, size_t buf_sz, const struct bpf_core_spec *spec)  in bpf_core_format_spec()  argument
1174 	type_id = spec->root_type_id;  in bpf_core_format_spec()
1175 	t = btf_type_by_id(spec->btf, type_id);  in bpf_core_format_spec()
1176 	s = btf__name_by_offset(spec->btf, t->name_off);  in bpf_core_format_spec()
1179 		   core_relo_kind_str(spec->relo_kind),  in bpf_core_format_spec()
1182 	if (core_relo_is_type_based(spec->relo_kind))  in bpf_core_format_spec()
1185 	if (core_relo_is_enumval_based(spec->relo_kind)) {  in bpf_core_format_spec()
1186 		t = skip_mods_and_typedefs(spec->btf, type_id, NULL);  in bpf_core_format_spec()
1191 			e = btf_enum(t) + spec->raw_spec[0];  in bpf_core_format_spec()
1192 			s = btf__name_by_offset(spec->btf, e->name_off);  in bpf_core_format_spec()
1199 			e = btf_enum64(t) + spec->raw_spec[0];  in bpf_core_format_spec()
1200 			s = btf__name_by_offset(spec->btf, e->name_off);  in bpf_core_format_spec()
1207 	if (core_relo_is_field_based(spec->relo_kind)) {  in bpf_core_format_spec()
1208 		for (i = 0; i < spec->len; i++) {  in bpf_core_format_spec()
1209 			if (spec->spec[i].name)  in bpf_core_format_spec()
1210 				append_buf(".%s", spec->spec[i].name);  in bpf_core_format_spec()
1211 			else if (i > 0 || spec->spec[i].idx > 0)  in bpf_core_format_spec()
1212 				append_buf("[%u]", spec->spec[i].idx);  in bpf_core_format_spec()
1216 		for (i = 0; i < spec->raw_len; i++)  in bpf_core_format_spec()
1217 			append_buf("%s%d", i == 0 ? "" : ":", spec->raw_spec[i]);  in bpf_core_format_spec()
1219 		if (spec->bit_offset % 8)  in bpf_core_format_spec()
1220 			append_buf(" @ offset %u.%u)", spec->bit_offset / 8, spec->bit_offset % 8);  in bpf_core_format_spec()
1222 			append_buf(" @ offset %u)", spec->bit_offset / 8);  in bpf_core_format_spec()