kernel/bpf/verifier.c

435 	if (!env->prog->aux->func_info)
438 	info = &env->prog->aux->func_info[subprog];
2509 	main_btf_id = aux->func_info[0].type_id;
2513 		verbose(env, "invalid btf id for main subprog in func_info\n");
2541 		if (aux->func_info[i].type_id != id)
2543 		ret = aux->func_info[i].insn_off;
2544 		/* Further func_info and subprog checks will also happen
2548 			verbose(env, "invalid exception callback insn_off in func_info: 0\n");
2553 		verbose(env, "exception callback type id not found in func_info\n");
9448 	if (!prog->aux->func_info)
9451 	btf_id = prog->aux->func_info[subprog].type_id;
15226 		if (!aux->func_info) {
15227 			verbose(env, "missing btf func_info\n");
15932 	urecord = make_bpfptr(attr->func_info, uattr.is_kernel);
15993 	prog->aux->func_info = krecord;
16023 		verbose(env, "number of funcs in func_info doesn't match number of subprogs\n");
16032 	urecord = make_bpfptr(attr->func_info, uattr.is_kernel);
16034 	krecord = prog->aux->func_info;
16044 			verbose(env, "func_info BTF section doesn't match subprog layout in BPF program\n");
16082 	if (!aux->func_info)
16085 	/* func_info is not available for hidden subprogs */
16087 		aux->func_info[i].insn_off = env->subprog_info[i].start;
16252 	/* Unlike func_info and line_info, copy and apply each CO-RE
18572 		/* remove func_info */
18573 		if (aux->func_info) {
18576 			memmove(aux->func_info + i,
18577 				aux->func_info + j,
18578 				sizeof(*aux->func_info) * move);
18580 			/* func_info->insn_off is set after all code rewrites,
19187 		func[i]->aux->func_info = prog->aux->func_info;
20558 	if (!aux->func_info)
20792 			if (aux->func_info[i].type_id == btf_id) {