/* $NetBSD: bootinfo.c,v 1.1.66.1 2019/12/18 20:04:32 martin Exp $ */ /*- * Copyright (c) 1999 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jonathan Stone, Michael Hitch and Simon Burge. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include "bootinfo.h" char *bootinfo = NULL; static char *bi_next; static int bi_size; void bi_init(paddr_t addr) { struct btinfo_common *bi; struct btinfo_magic bi_magic; bootinfo = (char *)addr; bi = (struct btinfo_common *)bootinfo; bi->next = bi->type = 0; bi_next = bootinfo; bi_size = 0; bi_magic.magic = BOOTINFO_MAGIC; bi_add(&bi_magic, BTINFO_MAGIC, sizeof(bi_magic)); } void bi_add(void *new, int type, int size) { struct btinfo_common *bi; if (bi_size + size > BOOTINFO_SIZE) return; /* XXX error? */ bi = new; bi->next = size; bi->type = type; memcpy(bi_next, new, size); bi_next += size; bi = (struct btinfo_common *)bi_next; bi->next = bi->type = 0; }