initial import of NetBSD tree

1 files changed, 279 insertions, 0 deletions

diff --git a/sys/arch/pc532/stand/boot.c b/sys/arch/pc532/stand/boot.c
new file mode 100644
index 00000000000..6301d6f1cd6
--- /dev/null
+++ b/sys/arch/pc532/stand/boot.c
@@ -0,0 +1,279 @@
+/*	$NetBSD: boot.c,v 1.4.2.1 1995/10/17 00:19:15 phil Exp $	*/
+
+/*-
+ * Copyright (c) 1982, 1986, 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ *
+ *	@(#)boot.c	8.1 (Berkeley) 6/10/93
+ */
+
+#ifndef lint
+static char rcsid[] = "$NetBSD: boot.c,v 1.4.2.1 1995/10/17 00:19:15 phil Exp $";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/reboot.h>
+#include <a.out.h>
+#include "stand.h"
+#include "samachdep.h"
+
+/*
+ * Boot program... bits in `howto' determine whether boot stops to
+ * ask for system name.	 Boot device is derived from ROM provided
+ * information.
+ */
+
+extern	unsigned opendev;
+extern	int noconsole;
+extern	int testing;
+
+char *ssym, *esym;
+
+char *name;
+char *names[] = {
+	"/netbsd", "/onetbsd", "/netbsd.old",
+};
+#define NUMNAMES	(sizeof(names)/sizeof(char *))
+#define LOADADDR	((char *)0x2000)
+
+static int bdev, bctlr, bunit, bpart;
+
+main()
+{
+	int currname = 0;
+	int io;
+
+	cninit();
+	scsiinit();
+
+	printf("\n>> NetBSD BOOT pc532 [$Revision: 1.1 $]\n");
+
+	bdev  = B_TYPE(bootdev);
+	bctlr = B_CONTROLLER(bootdev);
+	bunit = B_UNIT(bootdev);
+	bpart = B_PARTITION(bootdev);
+
+	for (;;) {
+		name = names[currname++];
+		if (currname == NUMNAMES)
+		    currname = 0;
+
+		if (!noconsole) {
+		    howto = 0;
+		    getbootdev(&howto);
+		}
+		else
+		    printf(": %s\n", name);
+
+		io = open(name, 0);
+
+		if (io >= 0) {
+			copyunix(howto, opendev, io);
+			close(io);
+		}
+		else
+		    printf("boot: %s\n", strerror(errno));
+	}
+}
+
+/*ARGSUSED*/
+copyunix(howto, devtype, io)
+	register int howto;	/* boot flags */
+	register u_int devtype;	/* boot device */
+	register int io;
+{
+	struct exec x;
+	int i;
+	register char *load;	/* load addr for unix */
+	register char *addr;
+	char *file;
+	int dev, ctlr, unit, part;
+
+	/* XXX use devtype? */
+	dev = B_TYPE(opendev);
+	ctlr = B_CONTROLLER(opendev);
+	unit = B_UNIT(opendev);
+	part = B_PARTITION(opendev);
+	/* get the file name part of name */
+	devparse(name, &i, &i, &i, &i, &i, &file);
+
+	i = read(io, (char *)&x, sizeof(x));
+	if (i != sizeof(x) || N_BADMAG(x)) {
+		printf("Bad format\n");
+		return;
+	}
+	addr = LOADADDR;	/* Always load at LOADADDR */
+	load = (char *)(x.a_entry & 0x00ffff00); /* XXX make less magical? */
+	printf("Booting %s%d%c:%s @ 0x%x\n",
+	    devsw[dev].dv_name, unit + (8*ctlr), 'a' + part, file, load);
+
+	if (testing) {
+		load = addr = alloc(2*1024*1024); /* XXX stat the file? */
+		if (!addr) {
+			printf("alloc failed\n");
+			exit(1);
+		}
+	}
+
+	/* Text */
+	printf("%d", x.a_text);
+	if (N_GETMAGIC(x) == ZMAGIC && lseek(io, 0, SEEK_SET) == -1)
+		goto shread;
+	if (read(io, addr, x.a_text) != x.a_text)
+		goto shread;
+	addr += x.a_text;
+	if (N_GETMAGIC(x) == NMAGIC)
+		while ((int)addr & CLOFSET)
+			*addr++ = 0;
+	/* Data */
+	printf("+%d", x.a_data);
+	if (read(io, addr, x.a_data) != x.a_data)
+		goto shread;
+	addr += x.a_data;
+
+	/* Bss */
+	printf("+%d", x.a_bss);
+	bzero( addr, x.a_bss );
+	addr += x.a_bss;
+
+	/* Symbols */
+	ssym = load + (addr - LOADADDR);
+	bcopy(&x.a_syms, addr, sizeof(x.a_syms));
+	addr += sizeof(x.a_syms);
+	printf(" [%d+", x.a_syms);
+	if (x.a_syms && read(io, addr, x.a_syms) != x.a_syms)
+		goto shread;
+	addr += x.a_syms;
+
+	/* read size of string table */
+	i = 0;
+	if (x.a_syms && read(io, &i, sizeof(int)) != sizeof(int))
+		goto shread;
+
+	/* read strings */
+	printf("%d]", i);
+	bcopy(&i, addr, sizeof(int));
+	if (i) {
+		i -= sizeof(int);
+		addr += sizeof(int);
+		if (read(io, addr, i) != i)
+		    goto shread;
+		addr += i;
+	}
+
+	if (load != LOADADDR) {
+		bcopy(LOADADDR, load, addr - LOADADDR);
+		addr = load + (addr - LOADADDR);
+	}
+#define	round_to_size(x,t) \
+	(((int)(x) + sizeof(t) - 1) & ~(sizeof(t) - 1))
+	esym = (char *)round_to_size(addr - load,int);
+#undef round_to_size
+
+	/* and note the end address of all this	*/
+	printf(" total=0x%x", addr);
+
+	x.a_entry &= 0xffffff;
+	printf(" start 0x%x\n", x.a_entry);
+
+#ifdef DEBUG
+	printf("ssym=0x%x esym=0x%x\n", ssym, esym);
+	printf("\n\nReturn to boot...\n");
+	getchar();
+#endif
+
+	if (!testing) {
+#ifdef __GNUC__
+		/* do NOT change order!!
+		 * the following are passed as args, and are in registers
+		 * clobbered by the last two movd's!!!
+		 */
+		asm("	movd %0,r5" : : "g" (load));
+		asm("	movd %0,r6" : : "g" (devtype));
+		asm("	movd %0,r7" : : "g" (howto));
+
+		/* magic value for locore.s to look for (3253232532) */
+		asm("	movd %0,r3" : : "i" (0xc1e86394));
+		asm("	movd %0,r4" : : "g" (esym));
+#endif /* __GNUC__ */
+		(*((int (*)()) x.a_entry))();
+	}
+	return;
+shread:
+	printf("Short read\n");
+	return;
+}
+
+char line[100];
+
+getbootdev(howto)
+     int *howto;
+{
+	char c, *ptr = line;
+
+	printf("Boot: [[[%s%d%c:]%s][-abdrs]] :- ",
+	    devsw[bdev].dv_name, bunit + (8 * bctlr), 'a'+bpart, name);
+
+	if (tgets(line)) {
+		while (c = *ptr) {
+			while (c == ' ')
+				c = *++ptr;
+			if (!c)
+				return;
+			if (c == '-')
+				while ((c = *++ptr) && c != ' ')
+					switch (c) {
+					case 'a':
+						*howto |= RB_ASKNAME;
+						continue;
+					case 'b':
+						*howto |= RB_HALT;
+						continue;
+					case 'd':
+						*howto |= RB_KDB;
+						continue;
+					case 'r':
+						*howto |= RB_DFLTROOT;
+						continue;
+					case 's':
+						*howto |= RB_SINGLE;
+						continue;
+					}
+			else {
+				name = ptr;
+				while ((c = *++ptr) && c != ' ');
+				if (c)
+					*ptr++ = 0;
+			}
+		}
+	} else
+		printf("\n");
+}