96 lines
3.1 KiB
C
96 lines
3.1 KiB
C
/* $NetBSD: bootinfo.c,v 1.1 1999/04/30 09:29:40 christos Exp $ */
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/*-
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* Copyright (c) 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jonathan Stone, Michael Hitch and Simon Burge.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <machine/types.h>
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#include <lib/libsa/stand.h>
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#include <lib/libkern/libkern.h>
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#include "bootinfo.h"
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static char *bootinfo = NULL;
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static char *bi_next;
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static int bi_size;
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u_long
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bi_init(addr)
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u_long addr;
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{
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struct btinfo_common *bi;
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struct btinfo_magic bi_magic;
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u_long *endp;
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endp = (u_long *)ALIGN(addr);
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/*
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* For the first word we load our end address,
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* giving enough space for the bootinfo structure.
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*/
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endp[0] = (u_long)((char *)endp + BOOTINFO_SIZE);
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bootinfo = (char *)ALIGN(&endp[2]);
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endp[1] = (u_long)bootinfo;
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bi = (struct btinfo_common *)bootinfo;
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bi->next = bi->type = 0;
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bi_next = bootinfo;
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bi_size = 0;
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bi_magic.magic = BOOTINFO_MAGIC;
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bi_add(&bi_magic, BTINFO_MAGIC, sizeof(bi_magic));
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return (u_long) endp;
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}
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void
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bi_add(new, type, size)
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void *new;
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int type;
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size_t size;
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{
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struct btinfo_common *bi;
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if (bi_size + size > BOOTINFO_SIZE)
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return; /* XXX error? */
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bi = new;
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bi->next = ALIGN(size);
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bi->type = type;
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memcpy(bi_next, new, size);
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bi_next += ALIGN(size);
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bi = (struct btinfo_common *)bi_next;
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bi->next = bi->type = 0;
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}
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