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[src/trunk]: src/sys/arch/pmax/stand/boot Second stage bootblocks based on or...
details: https://anonhg.NetBSD.org/src/rev/93f5f03b4a13
branches: trunk
changeset: 467511:93f5f03b4a13
user: simonb <simonb%NetBSD.org@localhost>
date: Thu Mar 25 12:11:41 1999 +0000
description:
Second stage bootblocks based on original single stage blocks.
diffstat:
sys/arch/pmax/stand/boot/boot.c | 238 ++++++++++++++++++++++++++++++++++++++++
1 files changed, 238 insertions(+), 0 deletions(-)
diffs (242 lines):
diff -r 734baa280512 -r 93f5f03b4a13 sys/arch/pmax/stand/boot/boot.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/pmax/stand/boot/boot.c Thu Mar 25 12:11:41 1999 +0000
@@ -0,0 +1,238 @@
+/* $NetBSD: boot.c,v 1.1 1999/03/25 12:11:41 simonb 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
+ */
+
+#undef OLD_LOADFILE /* XXX */
+
+#define PMAX_BOOT_AOUT
+#define PMAX_BOOT_ECOFF
+#define PMAX_BOOT_ELF
+
+#include <sys/param.h>
+#include <sys/exec.h>
+#include <sys/exec_elf.h>
+#include <stand.h>
+#include <machine/dec_prom.h>
+
+#ifndef OLD_LOADFILE
+#include "loadfile.h"
+#endif
+
+#include "bootinfo.h"
+#include "byteswap.h"
+
+int errno;
+extern char bootprog_name[], bootprog_rev[], bootprog_date[], bootprog_maker[];
+
+/*
+ * 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 entry;
+#ifndef OLD_LOADFILE
+ u_long marks[MARK_MAX];
+ struct btinfo_symtab bi_syms;
+#endif
+ struct btinfo_bootpath bi_bpath;
+
+ /* initialise bootinfo structure early */
+ bi_init(BOOTINFO_ADDR);
+
+ /* check for DS5000 boot */
+ if (strcmp(argv[0], "boot") == 0) {
+ argc--;
+ argv++;
+ }
+ cp = *argv;
+ printf(">> %s, Revision %s\n", bootprog_name, bootprog_rev);
+ printf(">> (%s, %s)\n", bootprog_maker, bootprog_date);
+
+ printf("Boot: %s\n", cp);
+ strncpy(bi_bpath.bootpath, cp, BTINFO_BOOTPATH_LEN);
+ bi_add(&bi_bpath, BTINFO_BOOTPATH, sizeof(bi_bpath));
+#ifdef OLD_LOADFILE
+ entry = loadfile(cp);
+ if (entry == -1)
+ return 0;
+#else
+ marks[MARK_START] = 0;
+ if (loadfile(cp, marks, LOAD_ALL) == -1)
+ return 0;
+ entry = marks[MARK_ENTRY];
+ bi_syms.nsym = marks[MARK_NSYM];
+ bi_syms.ssym = marks[MARK_SYM];
+ bi_syms.esym = marks[MARK_END];
+ bi_add(&bi_syms, BTINFO_SYMTAB, sizeof(bi_syms));
+#endif
+
+ printf("Starting at 0x%x\n\n", entry);
+ if (callv == &callvec)
+ startprog(entry, entry, argc, argv, 0, 0,
+ BOOTINFO_MAGIC, BOOTINFO_ADDR);
+ else
+ startprog(entry, entry, argc, argv, DEC_PROM_MAGIC,
+ callv, BOOTINFO_MAGIC, BOOTINFO_ADDR);
+}
+
+#ifdef OLD_LOADFILE
+/*
+ * 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;
+ union {
+#ifdef PMAX_BOOT_ELF
+ Elf32_Ehdr ehdr;
+#endif
+#ifdef PMAX_BOOT_AOUT
+ struct exec aout;
+#endif
+ } hdr;
+
+ if ((fd = open(fname, 0)) < 0) {
+ printf("open(%s) failed: %d\n", fname, errno);
+ goto err;
+ }
+
+ /* read the exec header */
+ i = read(fd, (char *)&hdr, sizeof(hdr));
+ if (i != sizeof(hdr)) {
+ printf("short header\n");
+ goto cerr;
+ }
+#ifdef PMAX_BOOT_ELF
+ if (bcmp(hdr.ehdr.e_ident, Elf32_e_ident, Elf32_e_siz) == 0) {
+ int first;
+ Elf32_Phdr phdr;
+ printf("Elfboot: [");
+ for (i = 0, first=1; i < hdr.ehdr.e_phnum; ++i) {
+ if (lseek(fd, (off_t) hdr.ehdr.e_phoff + i * sizeof(phdr), 0) < 0)
+ goto cerr;
+ if (read(fd, &phdr, sizeof(phdr)) != sizeof(phdr))
+ goto cerr;
+ if (phdr.p_type != Elf_pt_load)
+ continue;
+ if (lseek(fd, (off_t)phdr.p_offset, 0) < 0)
+ goto cerr;
+ printf("%d+", phdr.p_filesz);
+ if (read(fd, (char *)phdr.p_paddr, phdr.p_filesz) != phdr.p_filesz)
+ goto cerr;
+ if (!first && phdr.p_filesz != phdr.p_memsz)
+ printf("%d]\n", phdr.p_memsz - phdr.p_filesz);
+ first = 0;
+ }
+ return (hdr.ehdr.e_entry);
+ } else
+#endif
+#ifdef PMAX_BOOT_AOUT
+ if ((N_GETMAGIC(hdr.aout) == OMAGIC)
+ || (hdr.aout.a_midmag & 0xfff) == OMAGIC) {
+ char *buf;
+
+ /* read the code ... */
+ printf("Size: %d", hdr.aout.a_text);
+ /* In an OMAGIC file, we're already there. */
+ if (lseek(fd, (off_t)N_TXTOFF(hdr.aout), 0) < 0) {
+ goto cerr;
+ }
+ n = read(fd, buf = (char *)hdr.aout.a_entry, hdr.aout.a_text);
+ /* ... and initialized data */
+ printf("+%d", hdr.aout.a_data);
+ n += read(fd, buf + hdr.aout.a_text, hdr.aout.a_data);
+ i = hdr.aout.a_text + hdr.aout.a_data;
+
+ if (hdr.aout.a_syms) {
+ /*
+ * Copy exec header to start of bss.
+ * Load symbols into end + sizeof(int).
+ */
+ memcpy(buf += i, (char *)&hdr.aout, sizeof(hdr.aout));
+ printf("+[%d", hdr.aout.a_syms + 4);
+ n += read(fd, buf += hdr.aout.a_bss + 4, hdr.aout.a_syms + 4);
+ i += hdr.aout.a_syms + 4;
+ buf += hdr.aout.a_syms;
+ /* printf("+%d]", *(long *)buf); */
+ n += read(fd, buf + 4, *(long *)buf);
+ i += *(long *)buf;
+ }
+#ifndef UFS_NOCLOSE
+ (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 = hdr.aout.a_bss;
+ printf("+%d\n", n);
+
+ return ((int)hdr.aout.a_entry);
+ } else
+#endif
+ {
+ printf("%s: Unknown executable format\n", fname);
+ }
+
+cerr:
+#ifndef UFS_NOCLOSE
+ (void) close(fd);
+#endif
+err:
+ printf("Can't boot '%s'\n", fname);
+ return (-1);
+}
+#endif
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