initial import of NetBSD tree

1 files changed, 170 insertions, 0 deletions

diff --git a/sys/arch/pmax/stand/boot.c b/sys/arch/pmax/stand/boot.c
new file mode 100644
index 00000000000..d1f4b1649a8
--- /dev/null
+++ b/sys/arch/pmax/stand/boot.c
@@ -0,0 +1,170 @@
+/*	$NetBSD: boot.c,v 1.6 1995/06/28 10:22:32 jonathan Exp $	*/
+
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * 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
+ */
+
+#include <sys/param.h>
+#include <sys/exec.h>
+#include <stand.h>
+#include <pmax/stand/dec_prom.h>
+
+
+#include "byteswap.h"
+
+char	line[1024];
+
+/*
+ * This gets arguments from the PROM, calls other routines to open
+ * and load the program to boot, and then transfers execution to that
+ * new program.
+ * Argv[0] should be something like "rz(0,0,0)vmunix" on a DECstation 3100.
+ * Argv[0,1] should be something like "boot 5/rz0/vmunix" on a DECstation 5000.
+ * The argument "-a" means vmunix should do an automatic reboot.
+ */
+int
+main(argc, argv)
+	int argc;
+	char **argv;
+{
+	register char *cp;
+	int ask, entry;
+
+#ifdef DIAGNOSTIC
+	extern int prom_id; /* hack, saved by standalone startup */
+
+	(*(callvec._printf))("hello, world\n");
+
+	printf ((callv == &callvec)?  "No REX %x\n" : "have REX %x\n",
+		 prom_id);
+#endif
+
+#ifdef JUSTASK
+	ask = 1;
+#else
+	/* check for DS5000 boot */
+	if (strcmp(argv[0], "boot") == 0) {
+		argc--;
+		argv++;
+	}
+	cp = *argv;
+	ask = 0;
+#endif /* JUSTASK */
+
+  	printf("Boot: ");
+	if (ask) {
+		gets(line);
+		if (line[0] == '\0')
+			return 0;
+		cp = line;
+		argv[0] = cp;
+		argc = 1;
+	} else
+		printf("%s\n", cp);
+	entry = loadfile(cp);
+	if (entry == -1)
+		return 0;
+
+	printf("Starting at 0x%x\n\n", entry);
+	if (callv == &callvec)
+		((void (*)())entry)(argc, argv, 0, 0);
+	else
+		((void (*)())entry)(argc, argv, DEC_PROM_MAGIC, callv);
+}
+
+/*
+ * Open 'filename', read in program and return the entry point or -1 if error.
+ */
+loadfile(fname)
+	register char *fname;
+{
+	register struct devices *dp;
+	register int fd, i, n;
+	struct exec aout;
+
+	if ((fd = open(fname, 0)) < 0) {
+		printf("open(%s) failed: %d\n", fname, errno);
+		goto err;
+	}
+
+	/* read the exec header */
+	i = read(fd, (char *)&aout, sizeof(aout));
+	if (i != sizeof(aout)) {
+		printf("no aout header\n");
+		goto cerr;
+	} else if ((N_GETMAGIC(aout) != OMAGIC)
+		   && (aout.a_midmag & 0xfff) != OMAGIC) {
+		printf("%s: bad magic %x\n", fname, aout.a_midmag);
+		goto cerr;
+	}
+
+	/* read the code and initialized data */
+	printf("Size: %d+%d", aout.a_text, aout.a_data);
+#if 0
+	/* In an OMAGIC file, we're already there. */
+	if (lseek(fd, (off_t)N_TXTOFF(aout), 0) < 0) {
+		goto cerr;
+	}
+#endif
+	i = aout.a_text + aout.a_data;
+	n = read(fd, (char *)aout.a_entry, i);
+#ifndef SMALL
+	(void) close(fd);
+#endif
+	if (n < 0) {
+		printf("read error %d\n", errno);
+		goto err;
+	} else if (n != i) {
+		printf("read() short %d bytes\n", i - n);
+		goto err;
+		
+	}
+
+	/* kernel will zero out its own bss */
+	n = aout.a_bss;
+	printf("+%d\n", n);
+
+	return ((int)aout.a_entry);
+
+cerr:
+#ifndef SMALL
+	(void) close(fd);
+#endif
+err:
+	printf("Can't boot '%s'\n", fname);
+	return (-1);
+}