e24168e6c3
* Fix a raft of warnings, printf and otherwise. * Allocate the correct amount in mod_searchmodule to prevent an overflow. * Fix the makefiles so they work outside my home directory (oops).
189 lines
3.1 KiB
C
189 lines
3.1 KiB
C
/*
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* $Id: boot1.c,v 1.1.1.1 1998/08/21 03:17:41 msmith Exp $
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* From $NetBSD: bootxx.c,v 1.4 1997/09/06 14:08:29 drochner Exp $
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*/
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/*
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* Copyright (c) 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include <sys/param.h>
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#include <machine/prom.h>
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#define DEBUGxx
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extern end[];
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int errno;
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char *heap = (char*) end;
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void
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putchar(int c)
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{
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if (c == '\n')
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prom_putchar('\r');
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prom_putchar(c);
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}
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void
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puts(const char *s)
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{
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while (*s)
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putchar(*s++);
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}
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void *
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malloc(size_t size)
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{
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char *p = heap;
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size = (size + 7) & ~7;
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heap += size;
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return p;
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}
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void
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free(void * p)
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{
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}
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void
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panic(const char *message, ...)
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{
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puts(message);
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puts("\r\n");
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halt();
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}
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int prom_fd = 0;
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int
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devopen()
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{
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prom_return_t ret;
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char devname[64];
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if (prom_fd)
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return;
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ret.bits = prom_getenv(PROM_E_BOOTED_DEV, devname, sizeof devname);
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ret.bits = prom_open(devname, ret.u.retval + 1);
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if (ret.u.status)
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panic("devopen: open failed\n");
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prom_fd = ret.u.retval;
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/* XXX read disklabel and setup partition offset */
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return 0;
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}
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#ifdef DEBUG
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void
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puthex(u_long v)
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{
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int digit;
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char hex[] = "0123456789abcdef";
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if (!v) {
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puts("0");
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return;
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}
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for (digit = 0; v >= (0x10L << digit); digit += 4)
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;
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for (; digit >= 0; digit -= 4)
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putchar(hex[(v >> digit) & 0xf]);
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}
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#endif
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void
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devread(char *buf, int block, size_t size)
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{
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#ifdef DEBUG
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puts("devread(");
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puthex((u_long)buf);
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puts(",");
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puthex(block);
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puts(",");
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puthex(size);
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puts(")\n");
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#endif
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prom_read(prom_fd, size, buf, block);
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}
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void
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devclose()
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{
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if (prom_fd) {
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prom_close(prom_fd);
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prom_fd = 0;
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}
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}
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void
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loadfile(char *name, char *addr)
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{
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int n;
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if (openrd(name)) {
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puts("Can't open file ");
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puts(name);
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puts("\n");
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halt();
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}
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do {
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n = readit(addr, 1024);
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addr += n;
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twiddle();
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} while (n > 0);
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devclose();
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}
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void
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main()
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{
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char *loadaddr = (char*) SECONDARY_LOAD_ADDRESS;
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char *p;
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void (*entry) __P((void));
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int i;
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init_prom_calls();
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loadfile("/boot/boot2", loadaddr);
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entry = (void (*)())loadaddr;
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(*entry)();
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}
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