summaryrefslogtreecommitdiffstats
path: root/arch/mips/boot
diff options
context:
space:
mode:
authorAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
committerAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
commitb4b6116a13633898cf868f2f103c96a90c4c20f8 (patch)
tree93d1b7e2cfcdf473d8d4ff3ad141fa864f8491f6 /arch/mips/boot
parentedd4be777c953e5faafc80d091d3084b4343f5d3 (diff)
downloadkernel-uprobes-b4b6116a13633898cf868f2f103c96a90c4c20f8.tar.gz
kernel-uprobes-b4b6116a13633898cf868f2f103c96a90c4c20f8.tar.xz
kernel-uprobes-b4b6116a13633898cf868f2f103c96a90c4c20f8.zip
fedora kernel: d9aad82f3319f3cfd1aebc01234254ef0c37ad84v3.3.2-1
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/mips/boot')
-rw-r--r--arch/mips/boot/Makefile42
-rw-r--r--arch/mips/boot/compressed/Makefile108
-rw-r--r--arch/mips/boot/compressed/calc_vmlinuz_load_addr.c57
-rw-r--r--arch/mips/boot/compressed/dbg.c37
-rw-r--r--arch/mips/boot/compressed/decompress.c110
-rw-r--r--arch/mips/boot/compressed/dummy.c4
-rw-r--r--arch/mips/boot/compressed/head.S56
-rw-r--r--arch/mips/boot/compressed/ld.script50
-rw-r--r--arch/mips/boot/compressed/uart-16550.c43
-rw-r--r--arch/mips/boot/compressed/uart-alchemy.c10
-rw-r--r--arch/mips/boot/ecoff.h62
-rw-r--r--arch/mips/boot/elf2ecoff.c616
12 files changed, 1195 insertions, 0 deletions
diff --git a/arch/mips/boot/Makefile b/arch/mips/boot/Makefile
new file mode 100644
index 00000000000..85bcb5adc7c
--- /dev/null
+++ b/arch/mips/boot/Makefile
@@ -0,0 +1,42 @@
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License. See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 1995, 1998, 2001, 2002 by Ralf Baechle
+# Copyright (C) 2004 Maciej W. Rozycki
+#
+
+#
+# Some DECstations need all possible sections of an ECOFF executable
+#
+ifdef CONFIG_MACH_DECSTATION
+ e2eflag := -a
+endif
+
+#
+# Drop some uninteresting sections in the kernel.
+# This is only relevant for ELF kernels but doesn't hurt a.out
+#
+drop-sections := .reginfo .mdebug .comment .note .pdr .options .MIPS.options
+strip-flags := $(addprefix --remove-section=,$(drop-sections))
+
+hostprogs-y := elf2ecoff
+
+targets := vmlinux.ecoff
+quiet_cmd_ecoff = ECOFF $@
+ cmd_ecoff = $(obj)/elf2ecoff $(VMLINUX) $@ $(e2eflag)
+$(obj)/vmlinux.ecoff: $(obj)/elf2ecoff $(VMLINUX) FORCE
+ $(call if_changed,ecoff)
+
+targets += vmlinux.bin
+quiet_cmd_bin = OBJCOPY $@
+ cmd_bin = $(OBJCOPY) -O binary $(strip-flags) $(VMLINUX) $@
+$(obj)/vmlinux.bin: $(VMLINUX) FORCE
+ $(call if_changed,bin)
+
+targets += vmlinux.srec
+quiet_cmd_srec = OBJCOPY $@
+ cmd_srec = $(OBJCOPY) -S -O srec $(strip-flags) $(VMLINUX) $@
+$(obj)/vmlinux.srec: $(VMLINUX) FORCE
+ $(call if_changed,srec)
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
new file mode 100644
index 00000000000..5042d51b051
--- /dev/null
+++ b/arch/mips/boot/compressed/Makefile
@@ -0,0 +1,108 @@
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.
+#
+# Adapted for MIPS Pete Popov, Dan Malek
+#
+# Copyright (C) 1994 by Linus Torvalds
+# Adapted for PowerPC by Gary Thomas
+# modified by Cort (cort@cs.nmt.edu)
+#
+# Copyright (C) 2009 Lemote Inc. & DSLab, Lanzhou University
+# Author: Wu Zhangjin <wuzhangjin@gmail.com>
+#
+
+# set the default size of the mallocing area for decompressing
+BOOT_HEAP_SIZE := 0x400000
+
+# Disable Function Tracer
+KBUILD_CFLAGS := $(shell echo $(KBUILD_CFLAGS) | sed -e "s/-pg//")
+
+KBUILD_CFLAGS := $(LINUXINCLUDE) $(KBUILD_CFLAGS) -D__KERNEL__ \
+ -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) -D"VMLINUX_LOAD_ADDRESS_ULL=$(VMLINUX_LOAD_ADDRESS)ull"
+
+KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \
+ -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \
+ -DKERNEL_ENTRY=0x$(shell $(NM) $(objtree)/$(KBUILD_IMAGE) 2>/dev/null | grep " kernel_entry" | cut -f1 -d \ )
+
+targets := head.o decompress.o dbg.o uart-16550.o uart-alchemy.o
+
+# decompressor objects (linked with vmlinuz)
+vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/dbg.o
+
+ifdef CONFIG_DEBUG_ZBOOT
+vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
+vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY) += $(obj)/uart-alchemy.o
+endif
+
+targets += vmlinux.bin
+OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S
+$(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE
+ $(call if_changed,objcopy)
+
+tool_$(CONFIG_KERNEL_GZIP) = gzip
+tool_$(CONFIG_KERNEL_BZIP2) = bzip2
+tool_$(CONFIG_KERNEL_LZMA) = lzma
+tool_$(CONFIG_KERNEL_LZO) = lzo
+
+targets += vmlinux.bin.z
+$(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE
+ $(call if_changed,$(tool_y))
+
+targets += piggy.o
+OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \
+ --set-section-flags=.image=contents,alloc,load,readonly,data
+$(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
+ $(call if_changed,objcopy)
+
+# Calculate the load address of the compressed kernel image
+hostprogs-y := calc_vmlinuz_load_addr
+
+VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
+ $(obj)/vmlinux.bin $(VMLINUX_LOAD_ADDRESS))
+
+vmlinuzobjs-y += $(obj)/piggy.o
+
+quiet_cmd_zld = LD $@
+ cmd_zld = $(LD) $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@
+quiet_cmd_strip = STRIP $@
+ cmd_strip = $(STRIP) -s $@
+vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr
+ $(call cmd,zld)
+ $(call cmd,strip)
+
+#
+# Some DECstations need all possible sections of an ECOFF executable
+#
+ifdef CONFIG_MACH_DECSTATION
+ e2eflag := -a
+endif
+
+# elf2ecoff can only handle 32bit image
+hostprogs-y += ../elf2ecoff
+
+ifdef CONFIG_32BIT
+ VMLINUZ = vmlinuz
+else
+ VMLINUZ = vmlinuz.32
+endif
+
+quiet_cmd_32 = OBJCOPY $@
+ cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
+vmlinuz.32: vmlinuz
+ $(call cmd,32)
+
+quiet_cmd_ecoff = ECOFF $@
+ cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag)
+vmlinuz.ecoff: $(obj)/../elf2ecoff $(VMLINUZ)
+ $(call cmd,ecoff)
+
+OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary
+vmlinuz.bin: vmlinuz
+ $(call cmd,objcopy)
+
+OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec
+vmlinuz.srec: vmlinuz
+ $(call cmd,objcopy)
+
+clean-files := $(objtree)/vmlinuz $(objtree)/vmlinuz.{32,ecoff,bin,srec}
diff --git a/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c b/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c
new file mode 100644
index 00000000000..9a6243676e2
--- /dev/null
+++ b/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2010 "Wu Zhangjin" <wuzhangjin@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, char *argv[])
+{
+ unsigned long long vmlinux_size, vmlinux_load_addr, vmlinuz_load_addr;
+ struct stat sb;
+
+ if (argc != 3) {
+ fprintf(stderr, "Usage: %s <pathname> <vmlinux_load_addr>\n",
+ argv[0]);
+ return EXIT_FAILURE;
+ }
+
+ if (stat(argv[1], &sb) == -1) {
+ perror("stat");
+ return EXIT_FAILURE;
+ }
+
+ /* Convert hex characters to dec number */
+ errno = 0;
+ if (sscanf(argv[2], "%llx", &vmlinux_load_addr) != 1) {
+ if (errno != 0)
+ perror("sscanf");
+ else
+ fprintf(stderr, "No matching characters\n");
+
+ return EXIT_FAILURE;
+ }
+
+ vmlinux_size = (uint64_t)sb.st_size;
+ vmlinuz_load_addr = vmlinux_load_addr + vmlinux_size;
+
+ /*
+ * Align with 16 bytes: "greater than that used for any standard data
+ * types by a MIPS compiler." -- See MIPS Run Linux (Second Edition).
+ */
+
+ vmlinuz_load_addr += (16 - vmlinux_size % 16);
+
+ printf("0x%llx\n", vmlinuz_load_addr);
+
+ return EXIT_SUCCESS;
+}
diff --git a/arch/mips/boot/compressed/dbg.c b/arch/mips/boot/compressed/dbg.c
new file mode 100644
index 00000000000..134a6162e39
--- /dev/null
+++ b/arch/mips/boot/compressed/dbg.c
@@ -0,0 +1,37 @@
+/*
+ * MIPS-specific debug support for pre-boot environment
+ *
+ * NOTE: putc() is board specific, if your board have a 16550 compatible uart,
+ * please select SYS_SUPPORTS_ZBOOT_UART16550 for your machine. othewise, you
+ * need to implement your own putc().
+ */
+#include <linux/compiler.h>
+#include <linux/init.h>
+#include <linux/types.h>
+
+void __weak putc(char c)
+{
+}
+
+void puts(const char *s)
+{
+ char c;
+ while ((c = *s++) != '\0') {
+ putc(c);
+ if (c == '\n')
+ putc('\r');
+ }
+}
+
+void puthex(unsigned long long val)
+{
+
+ unsigned char buf[10];
+ int i;
+ for (i = 7; i >= 0; i--) {
+ buf[i] = "0123456789ABCDEF"[val & 0x0F];
+ val >>= 4;
+ }
+ buf[8] = '\0';
+ puts(buf);
+}
diff --git a/arch/mips/boot/compressed/decompress.c b/arch/mips/boot/compressed/decompress.c
new file mode 100644
index 00000000000..5cad0faefa1
--- /dev/null
+++ b/arch/mips/boot/compressed/decompress.c
@@ -0,0 +1,110 @@
+/*
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: Matt Porter <mporter@mvista.com>
+ *
+ * Copyright (C) 2009 Lemote, Inc.
+ * Author: Wu Zhangjin <wuzhangjin@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+
+#include <asm/addrspace.h>
+
+/*
+ * These two variables specify the free mem region
+ * that can be used for temporary malloc area
+ */
+unsigned long free_mem_ptr;
+unsigned long free_mem_end_ptr;
+
+/* The linker tells us where the image is. */
+extern unsigned char __image_begin, __image_end;
+
+/* debug interfaces */
+extern void puts(const char *s);
+extern void puthex(unsigned long long val);
+
+void error(char *x)
+{
+ puts("\n\n");
+ puts(x);
+ puts("\n\n -- System halted");
+
+ while (1)
+ ; /* Halt */
+}
+
+/* activate the code for pre-boot environment */
+#define STATIC static
+
+#ifdef CONFIG_KERNEL_GZIP
+void *memcpy(void *dest, const void *src, size_t n)
+{
+ int i;
+ const char *s = src;
+ char *d = dest;
+
+ for (i = 0; i < n; i++)
+ d[i] = s[i];
+ return dest;
+}
+#include "../../../../lib/decompress_inflate.c"
+#endif
+
+#ifdef CONFIG_KERNEL_BZIP2
+void *memset(void *s, int c, size_t n)
+{
+ int i;
+ char *ss = s;
+
+ for (i = 0; i < n; i++)
+ ss[i] = c;
+ return s;
+}
+#include "../../../../lib/decompress_bunzip2.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZMA
+#include "../../../../lib/decompress_unlzma.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZO
+#include "../../../../lib/decompress_unlzo.c"
+#endif
+
+void decompress_kernel(unsigned long boot_heap_start)
+{
+ unsigned long zimage_start, zimage_size;
+
+ zimage_start = (unsigned long)(&__image_begin);
+ zimage_size = (unsigned long)(&__image_end) -
+ (unsigned long)(&__image_begin);
+
+ puts("zimage at: ");
+ puthex(zimage_start);
+ puts(" ");
+ puthex(zimage_size + zimage_start);
+ puts("\n");
+
+ /* This area are prepared for mallocing when decompressing */
+ free_mem_ptr = boot_heap_start;
+ free_mem_end_ptr = boot_heap_start + BOOT_HEAP_SIZE;
+
+ /* Display standard Linux/MIPS boot prompt */
+ puts("Uncompressing Linux at load address ");
+ puthex(VMLINUX_LOAD_ADDRESS_ULL);
+ puts("\n");
+
+ /* Decompress the kernel with according algorithm */
+ decompress((char *)zimage_start, zimage_size, 0, 0,
+ (void *)VMLINUX_LOAD_ADDRESS_ULL, 0, error);
+
+ /* FIXME: should we flush cache here? */
+ puts("Now, booting the kernel...\n");
+}
diff --git a/arch/mips/boot/compressed/dummy.c b/arch/mips/boot/compressed/dummy.c
new file mode 100644
index 00000000000..31dbf45bf99
--- /dev/null
+++ b/arch/mips/boot/compressed/dummy.c
@@ -0,0 +1,4 @@
+int main(void)
+{
+ return 0;
+}
diff --git a/arch/mips/boot/compressed/head.S b/arch/mips/boot/compressed/head.S
new file mode 100644
index 00000000000..4e65a8420be
--- /dev/null
+++ b/arch/mips/boot/compressed/head.S
@@ -0,0 +1,56 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1994, 1995 Waldorf Electronics
+ * Written by Ralf Baechle and Andreas Busse
+ * Copyright (C) 1995 - 1999 Ralf Baechle
+ * Copyright (C) 1996 Paul M. Antoine
+ * Modified for DECStation and hence R3000 support by Paul M. Antoine
+ * Further modifications by David S. Miller and Harald Koerfgen
+ * Copyright (C) 1999 Silicon Graphics, Inc.
+ */
+
+#include <asm/asm.h>
+#include <asm/regdef.h>
+
+ .set noreorder
+ .cprestore
+ LEAF(start)
+start:
+ /* Save boot rom start args */
+ move s0, a0
+ move s1, a1
+ move s2, a2
+ move s3, a3
+
+ /* Clear BSS */
+ PTR_LA a0, _edata
+ PTR_LA a2, _end
+1: sw zero, 0(a0)
+ bne a2, a0, 1b
+ addiu a0, a0, 4
+
+ PTR_LA a0, (.heap) /* heap address */
+ PTR_LA sp, (.stack + 8192) /* stack address */
+
+ PTR_LA ra, 2f
+ PTR_LA k0, decompress_kernel
+ jr k0
+ nop
+2:
+ move a0, s0
+ move a1, s1
+ move a2, s2
+ move a3, s3
+ PTR_LI k0, KERNEL_ENTRY
+ jr k0
+ nop
+3:
+ b 3b
+ nop
+ END(start)
+
+ .comm .heap,BOOT_HEAP_SIZE,4
+ .comm .stack,4096*2,4
diff --git a/arch/mips/boot/compressed/ld.script b/arch/mips/boot/compressed/ld.script
new file mode 100644
index 00000000000..8e6b07ca2f5
--- /dev/null
+++ b/arch/mips/boot/compressed/ld.script
@@ -0,0 +1,50 @@
+/*
+ * ld.script for compressed kernel support of MIPS
+ *
+ * Copyright (C) 2009 Lemote Inc.
+ * Author: Wu Zhangjin <wuzhanjing@gmail.com>
+ * Copyright (C) 2010 "Wu Zhangjin" <wuzhanjing@gmail.com>
+ */
+
+OUTPUT_ARCH(mips)
+ENTRY(start)
+SECTIONS
+{
+ /* Text and read-only data */
+ /* . = VMLINUZ_LOAD_ADDRESS; */
+ .text : {
+ *(.text)
+ *(.rodata)
+ }
+ /* End of text section */
+
+ /* Writable data */
+ .data : {
+ *(.data)
+ /* Put the compressed image here */
+ __image_begin = .;
+ *(.image)
+ __image_end = .;
+ CONSTRUCTORS
+ }
+ . = ALIGN(16);
+ _edata = .;
+ /* End of data section */
+
+ /* BSS */
+ .bss : {
+ *(.bss)
+ }
+ . = ALIGN(16);
+ _end = .;
+
+ /* Sections to be discarded */
+ /DISCARD/ : {
+ *(.MIPS.options)
+ *(.options)
+ *(.pdr)
+ *(.reginfo)
+ *(.comment)
+ *(.note)
+ }
+}
diff --git a/arch/mips/boot/compressed/uart-16550.c b/arch/mips/boot/compressed/uart-16550.c
new file mode 100644
index 00000000000..c9caaf4fbf6
--- /dev/null
+++ b/arch/mips/boot/compressed/uart-16550.c
@@ -0,0 +1,43 @@
+/*
+ * 16550 compatible uart based serial debug support for zboot
+ */
+
+#include <linux/types.h>
+#include <linux/serial_reg.h>
+#include <linux/init.h>
+
+#include <asm/addrspace.h>
+
+#if defined(CONFIG_MACH_LOONGSON) || defined(CONFIG_MIPS_MALTA)
+#define UART_BASE 0x1fd003f8
+#define PORT(offset) (CKSEG1ADDR(UART_BASE) + (offset))
+#endif
+
+#ifdef CONFIG_AR7
+#include <ar7.h>
+#define PORT(offset) (CKSEG1ADDR(AR7_REGS_UART0) + (4 * offset))
+#endif
+
+#ifndef PORT
+#error please define the serial port address for your own machine
+#endif
+
+static inline unsigned int serial_in(int offset)
+{
+ return *((char *)PORT(offset));
+}
+
+static inline void serial_out(int offset, int value)
+{
+ *((char *)PORT(offset)) = value;
+}
+
+void putc(char c)
+{
+ int timeout = 1024;
+
+ while (((serial_in(UART_LSR) & UART_LSR_THRE) == 0) && (timeout-- > 0))
+ ;
+
+ serial_out(UART_TX, c);
+}
diff --git a/arch/mips/boot/compressed/uart-alchemy.c b/arch/mips/boot/compressed/uart-alchemy.c
new file mode 100644
index 00000000000..3112df8f90d
--- /dev/null
+++ b/arch/mips/boot/compressed/uart-alchemy.c
@@ -0,0 +1,10 @@
+#include <asm/mach-au1x00/au1000.h>
+
+void putc(char c)
+{
+#ifdef CONFIG_MIPS_DB1300
+ alchemy_uart_putchar(AU1300_UART2_PHYS_ADDR, c);
+#else
+ alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
+#endif
+}
diff --git a/arch/mips/boot/ecoff.h b/arch/mips/boot/ecoff.h
new file mode 100644
index 00000000000..8c3eed2877f
--- /dev/null
+++ b/arch/mips/boot/ecoff.h
@@ -0,0 +1,62 @@
+/*
+ * Some ECOFF definitions.
+ */
+typedef struct filehdr {
+ unsigned short f_magic; /* magic number */
+ unsigned short f_nscns; /* number of sections */
+ long f_timdat; /* time & date stamp */
+ long f_symptr; /* file pointer to symbolic header */
+ long f_nsyms; /* sizeof(symbolic hdr) */
+ unsigned short f_opthdr; /* sizeof(optional hdr) */
+ unsigned short f_flags; /* flags */
+} FILHDR;
+#define FILHSZ sizeof(FILHDR)
+
+#define OMAGIC 0407
+#define MIPSEBMAGIC 0x160
+#define MIPSELMAGIC 0x162
+
+typedef struct scnhdr {
+ char s_name[8]; /* section name */
+ long s_paddr; /* physical address, aliased s_nlib */
+ long s_vaddr; /* virtual address */
+ long s_size; /* section size */
+ long s_scnptr; /* file ptr to raw data for section */
+ long s_relptr; /* file ptr to relocation */
+ long s_lnnoptr; /* file ptr to gp histogram */
+ unsigned short s_nreloc; /* number of relocation entries */
+ unsigned short s_nlnno; /* number of gp histogram entries */
+ long s_flags; /* flags */
+} SCNHDR;
+#define SCNHSZ sizeof(SCNHDR)
+#define SCNROUND ((long)16)
+
+typedef struct aouthdr {
+ short magic; /* see above */
+ short vstamp; /* version stamp */
+ long tsize; /* text size in bytes, padded to DW bdry*/
+ long dsize; /* initialized data " " */
+ long bsize; /* uninitialized data " " */
+ long entry; /* entry pt. */
+ long text_start; /* base of text used for this file */
+ long data_start; /* base of data used for this file */
+ long bss_start; /* base of bss used for this file */
+ long gprmask; /* general purpose register mask */
+ long cprmask[4]; /* co-processor register masks */
+ long gp_value; /* the gp value used for this object */
+} AOUTHDR;
+#define AOUTHSZ sizeof(AOUTHDR)
+
+#define OMAGIC 0407
+#define NMAGIC 0410
+#define ZMAGIC 0413
+#define SMAGIC 0411
+#define LIBMAGIC 0443
+
+#define N_TXTOFF(f, a) \
+ ((a).magic == ZMAGIC || (a).magic == LIBMAGIC ? 0 : \
+ ((a).vstamp < 23 ? \
+ ((FILHSZ + AOUTHSZ + (f).f_nscns * SCNHSZ + 7) & 0xfffffff8) : \
+ ((FILHSZ + AOUTHSZ + (f).f_nscns * SCNHSZ + SCNROUND-1) & ~(SCNROUND-1)) ) )
+#define N_DATOFF(f, a) \
+ N_TXTOFF(f, a) + (a).tsize;
diff --git a/arch/mips/boot/elf2ecoff.c b/arch/mips/boot/elf2ecoff.c
new file mode 100644
index 00000000000..e19d906236a
--- /dev/null
+++ b/arch/mips/boot/elf2ecoff.c
@@ -0,0 +1,616 @@
+/*
+ * Copyright (c) 1995
+ * Ted Lemon (hereinafter referred to as the author)
+ *
+ * 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. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+/* elf2ecoff.c
+
+ This program converts an elf executable to an ECOFF executable.
+ No symbol table is retained. This is useful primarily in building
+ net-bootable kernels for machines (e.g., DECstation and Alpha) which
+ only support the ECOFF object file format. */
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <elf.h>
+#include <limits.h>
+#include <netinet/in.h>
+#include <stdlib.h>
+
+#include "ecoff.h"
+
+/*
+ * Some extra ELF definitions
+ */
+#define PT_MIPS_REGINFO 0x70000000 /* Register usage information */
+
+/* -------------------------------------------------------------------- */
+
+struct sect {
+ unsigned long vaddr;
+ unsigned long len;
+};
+
+int *symTypeTable;
+int must_convert_endian;
+int format_bigendian;
+
+static void copy(int out, int in, off_t offset, off_t size)
+{
+ char ibuf[4096];
+ int remaining, cur, count;
+
+ /* Go to the start of the ELF symbol table... */
+ if (lseek(in, offset, SEEK_SET) < 0) {
+ perror("copy: lseek");
+ exit(1);
+ }
+
+ remaining = size;
+ while (remaining) {
+ cur = remaining;
+ if (cur > sizeof ibuf)
+ cur = sizeof ibuf;
+ remaining -= cur;
+ if ((count = read(in, ibuf, cur)) != cur) {
+ fprintf(stderr, "copy: read: %s\n",
+ count ? strerror(errno) :
+ "premature end of file");
+ exit(1);
+ }
+ if ((count = write(out, ibuf, cur)) != cur) {
+ perror("copy: write");
+ exit(1);
+ }
+ }
+}
+
+/*
+ * Combine two segments, which must be contiguous. If pad is true, it's
+ * okay for there to be padding between.
+ */
+static void combine(struct sect *base, struct sect *new, int pad)
+{
+ if (!base->len)
+ *base = *new;
+ else if (new->len) {
+ if (base->vaddr + base->len != new->vaddr) {
+ if (pad)
+ base->len = new->vaddr - base->vaddr;
+ else {
+ fprintf(stderr,
+ "Non-contiguous data can't be converted.\n");
+ exit(1);
+ }
+ }
+ base->len += new->len;
+ }
+}
+
+static int phcmp(const void *v1, const void *v2)
+{
+ const Elf32_Phdr *h1 = v1;
+ const Elf32_Phdr *h2 = v2;
+
+ if (h1->p_vaddr > h2->p_vaddr)
+ return 1;
+ else if (h1->p_vaddr < h2->p_vaddr)
+ return -1;
+ else
+ return 0;
+}
+
+static char *saveRead(int file, off_t offset, off_t len, char *name)
+{
+ char *tmp;
+ int count;
+ off_t off;
+ if ((off = lseek(file, offset, SEEK_SET)) < 0) {
+ fprintf(stderr, "%s: fseek: %s\n", name, strerror(errno));
+ exit(1);
+ }
+ if (!(tmp = (char *) malloc(len))) {
+ fprintf(stderr, "%s: Can't allocate %ld bytes.\n", name,
+ len);
+ exit(1);
+ }
+ count = read(file, tmp, len);
+ if (count != len) {
+ fprintf(stderr, "%s: read: %s.\n",
+ name,
+ count ? strerror(errno) : "End of file reached");
+ exit(1);
+ }
+ return tmp;
+}
+
+#define swab16(x) \
+ ((unsigned short)( \
+ (((unsigned short)(x) & (unsigned short)0x00ffU) << 8) | \
+ (((unsigned short)(x) & (unsigned short)0xff00U) >> 8) ))
+
+#define swab32(x) \
+ ((unsigned int)( \
+ (((unsigned int)(x) & (unsigned int)0x000000ffUL) << 24) | \
+ (((unsigned int)(x) & (unsigned int)0x0000ff00UL) << 8) | \
+ (((unsigned int)(x) & (unsigned int)0x00ff0000UL) >> 8) | \
+ (((unsigned int)(x) & (unsigned int)0xff000000UL) >> 24) ))
+
+static void convert_elf_hdr(Elf32_Ehdr * e)
+{
+ e->e_type = swab16(e->e_type);
+ e->e_machine = swab16(e->e_machine);
+ e->e_version = swab32(e->e_version);
+ e->e_entry = swab32(e->e_entry);
+ e->e_phoff = swab32(e->e_phoff);
+ e->e_shoff = swab32(e->e_shoff);
+ e->e_flags = swab32(e->e_flags);
+ e->e_ehsize = swab16(e->e_ehsize);
+ e->e_phentsize = swab16(e->e_phentsize);
+ e->e_phnum = swab16(e->e_phnum);
+ e->e_shentsize = swab16(e->e_shentsize);
+ e->e_shnum = swab16(e->e_shnum);
+ e->e_shstrndx = swab16(e->e_shstrndx);
+}
+
+static void convert_elf_phdrs(Elf32_Phdr * p, int num)
+{
+ int i;
+
+ for (i = 0; i < num; i++, p++) {
+ p->p_type = swab32(p->p_type);
+ p->p_offset = swab32(p->p_offset);
+ p->p_vaddr = swab32(p->p_vaddr);
+ p->p_paddr = swab32(p->p_paddr);
+ p->p_filesz = swab32(p->p_filesz);
+ p->p_memsz = swab32(p->p_memsz);
+ p->p_flags = swab32(p->p_flags);
+ p->p_align = swab32(p->p_align);
+ }
+
+}
+
+static void convert_elf_shdrs(Elf32_Shdr * s, int num)
+{
+ int i;
+
+ for (i = 0; i < num; i++, s++) {
+ s->sh_name = swab32(s->sh_name);
+ s->sh_type = swab32(s->sh_type);
+ s->sh_flags = swab32(s->sh_flags);
+ s->sh_addr = swab32(s->sh_addr);
+ s->sh_offset = swab32(s->sh_offset);
+ s->sh_size = swab32(s->sh_size);
+ s->sh_link = swab32(s->sh_link);
+ s->sh_info = swab32(s->sh_info);
+ s->sh_addralign = swab32(s->sh_addralign);
+ s->sh_entsize = swab32(s->sh_entsize);
+ }
+}
+
+static void convert_ecoff_filehdr(struct filehdr *f)
+{
+ f->f_magic = swab16(f->f_magic);
+ f->f_nscns = swab16(f->f_nscns);
+ f->f_timdat = swab32(f->f_timdat);
+ f->f_symptr = swab32(f->f_symptr);
+ f->f_nsyms = swab32(f->f_nsyms);
+ f->f_opthdr = swab16(f->f_opthdr);
+ f->f_flags = swab16(f->f_flags);
+}
+
+static void convert_ecoff_aouthdr(struct aouthdr *a)
+{
+ a->magic = swab16(a->magic);
+ a->vstamp = swab16(a->vstamp);
+ a->tsize = swab32(a->tsize);
+ a->dsize = swab32(a->dsize);
+ a->bsize = swab32(a->bsize);
+ a->entry = swab32(a->entry);
+ a->text_start = swab32(a->text_start);
+ a->data_start = swab32(a->data_start);
+ a->bss_start = swab32(a->bss_start);
+ a->gprmask = swab32(a->gprmask);
+ a->cprmask[0] = swab32(a->cprmask[0]);
+ a->cprmask[1] = swab32(a->cprmask[1]);
+ a->cprmask[2] = swab32(a->cprmask[2]);
+ a->cprmask[3] = swab32(a->cprmask[3]);
+ a->gp_value = swab32(a->gp_value);
+}
+
+static void convert_ecoff_esecs(struct scnhdr *s, int num)
+{
+ int i;
+
+ for (i = 0; i < num; i++, s++) {
+ s->s_paddr = swab32(s->s_paddr);
+ s->s_vaddr = swab32(s->s_vaddr);
+ s->s_size = swab32(s->s_size);
+ s->s_scnptr = swab32(s->s_scnptr);
+ s->s_relptr = swab32(s->s_relptr);
+ s->s_lnnoptr = swab32(s->s_lnnoptr);
+ s->s_nreloc = swab16(s->s_nreloc);
+ s->s_nlnno = swab16(s->s_nlnno);
+ s->s_flags = swab32(s->s_flags);
+ }
+}
+
+int main(int argc, char *argv[])
+{
+ Elf32_Ehdr ex;
+ Elf32_Phdr *ph;
+ Elf32_Shdr *sh;
+ char *shstrtab;
+ int i, pad;
+ struct sect text, data, bss;
+ struct filehdr efh;
+ struct aouthdr eah;
+ struct scnhdr esecs[6];
+ int infile, outfile;
+ unsigned long cur_vma = ULONG_MAX;
+ int addflag = 0;
+ int nosecs;
+
+ text.len = data.len = bss.len = 0;
+ text.vaddr = data.vaddr = bss.vaddr = 0;
+
+ /* Check args... */
+ if (argc < 3 || argc > 4) {
+ usage:
+ fprintf(stderr,
+ "usage: elf2ecoff <elf executable> <ecoff executable> [-a]\n");
+ exit(1);
+ }
+ if (argc == 4) {
+ if (strcmp(argv[3], "-a"))
+ goto usage;
+ addflag = 1;
+ }
+
+ /* Try the input file... */
+ if ((infile = open(argv[1], O_RDONLY)) < 0) {
+ fprintf(stderr, "Can't open %s for read: %s\n",
+ argv[1], strerror(errno));
+ exit(1);
+ }
+
+ /* Read the header, which is at the beginning of the file... */
+ i = read(infile, &ex, sizeof ex);
+ if (i != sizeof ex) {
+ fprintf(stderr, "ex: %s: %s.\n",
+ argv[1],
+ i ? strerror(errno) : "End of file reached");
+ exit(1);
+ }
+
+ if (ex.e_ident[EI_DATA] == ELFDATA2MSB)
+ format_bigendian = 1;
+
+ if (ntohs(0xaa55) == 0xaa55) {
+ if (!format_bigendian)
+ must_convert_endian = 1;
+ } else {
+ if (format_bigendian)
+ must_convert_endian = 1;
+ }
+ if (must_convert_endian)
+ convert_elf_hdr(&ex);
+
+ /* Read the program headers... */
+ ph = (Elf32_Phdr *) saveRead(infile, ex.e_phoff,
+ ex.e_phnum * sizeof(Elf32_Phdr),
+ "ph");
+ if (must_convert_endian)
+ convert_elf_phdrs(ph, ex.e_phnum);
+ /* Read the section headers... */
+ sh = (Elf32_Shdr *) saveRead(infile, ex.e_shoff,
+ ex.e_shnum * sizeof(Elf32_Shdr),
+ "sh");
+ if (must_convert_endian)
+ convert_elf_shdrs(sh, ex.e_shnum);
+ /* Read in the section string table. */
+ shstrtab = saveRead(infile, sh[ex.e_shstrndx].sh_offset,
+ sh[ex.e_shstrndx].sh_size, "shstrtab");
+
+ /* Figure out if we can cram the program header into an ECOFF
+ header... Basically, we can't handle anything but loadable
+ segments, but we can ignore some kinds of segments. We can't
+ handle holes in the address space. Segments may be out of order,
+ so we sort them first. */
+
+ qsort(ph, ex.e_phnum, sizeof(Elf32_Phdr), phcmp);
+
+ for (i = 0; i < ex.e_phnum; i++) {
+ /* Section types we can ignore... */
+ if (ph[i].p_type == PT_NULL || ph[i].p_type == PT_NOTE ||
+ ph[i].p_type == PT_PHDR
+ || ph[i].p_type == PT_MIPS_REGINFO)
+ continue;
+ /* Section types we can't handle... */
+ else if (ph[i].p_type != PT_LOAD) {
+ fprintf(stderr,
+ "Program header %d type %d can't be converted.\n",
+ ex.e_phnum, ph[i].p_type);
+ exit(1);
+ }
+ /* Writable (data) segment? */
+ if (ph[i].p_flags & PF_W) {
+ struct sect ndata, nbss;
+
+ ndata.vaddr = ph[i].p_vaddr;
+ ndata.len = ph[i].p_filesz;
+ nbss.vaddr = ph[i].p_vaddr + ph[i].p_filesz;
+ nbss.len = ph[i].p_memsz - ph[i].p_filesz;
+
+ combine(&data, &ndata, 0);
+ combine(&bss, &nbss, 1);
+ } else {
+ struct sect ntxt;
+
+ ntxt.vaddr = ph[i].p_vaddr;
+ ntxt.len = ph[i].p_filesz;
+
+ combine(&text, &ntxt, 0);
+ }
+ /* Remember the lowest segment start address. */
+ if (ph[i].p_vaddr < cur_vma)
+ cur_vma = ph[i].p_vaddr;
+ }
+
+ /* Sections must be in order to be converted... */
+ if (text.vaddr > data.vaddr || data.vaddr > bss.vaddr ||
+ text.vaddr + text.len > data.vaddr
+ || data.vaddr + data.len > bss.vaddr) {
+ fprintf(stderr,
+ "Sections ordering prevents a.out conversion.\n");
+ exit(1);
+ }
+
+ /* If there's a data section but no text section, then the loader
+ combined everything into one section. That needs to be the
+ text section, so just make the data section zero length following
+ text. */
+ if (data.len && !text.len) {
+ text = data;
+ data.vaddr = text.vaddr + text.len;
+ data.len = 0;
+ }
+
+ /* If there is a gap between text and data, we'll fill it when we copy
+ the data, so update the length of the text segment as represented in
+ a.out to reflect that, since a.out doesn't allow gaps in the program
+ address space. */
+ if (text.vaddr + text.len < data.vaddr)
+ text.len = data.vaddr - text.vaddr;
+
+ /* We now have enough information to cons up an a.out header... */
+ eah.magic = OMAGIC;
+ eah.vstamp = 200;
+ eah.tsize = text.len;
+ eah.dsize = data.len;
+ eah.bsize = bss.len;
+ eah.entry = ex.e_entry;
+ eah.text_start = text.vaddr;
+ eah.data_start = data.vaddr;
+ eah.bss_start = bss.vaddr;
+ eah.gprmask = 0xf3fffffe;
+ memset(&eah.cprmask, '\0', sizeof eah.cprmask);
+ eah.gp_value = 0; /* unused. */
+
+ if (format_bigendian)
+ efh.f_magic = MIPSEBMAGIC;
+ else
+ efh.f_magic = MIPSELMAGIC;
+ if (addflag)
+ nosecs = 6;
+ else
+ nosecs = 3;
+ efh.f_nscns = nosecs;
+ efh.f_timdat = 0; /* bogus */
+ efh.f_symptr = 0;
+ efh.f_nsyms = 0;
+ efh.f_opthdr = sizeof eah;
+ efh.f_flags = 0x100f; /* Stripped, not sharable. */
+
+ memset(esecs, 0, sizeof esecs);
+ strcpy(esecs[0].s_name, ".text");
+ strcpy(esecs[1].s_name, ".data");
+ strcpy(esecs[2].s_name, ".bss");
+ if (addflag) {
+ strcpy(esecs[3].s_name, ".rdata");
+ strcpy(esecs[4].s_name, ".sdata");
+ strcpy(esecs[5].s_name, ".sbss");
+ }
+ esecs[0].s_paddr = esecs[0].s_vaddr = eah.text_start;
+ esecs[1].s_paddr = esecs[1].s_vaddr = eah.data_start;
+ esecs[2].s_paddr = esecs[2].s_vaddr = eah.bss_start;
+ if (addflag) {
+ esecs[3].s_paddr = esecs[3].s_vaddr = 0;
+ esecs[4].s_paddr = esecs[4].s_vaddr = 0;
+ esecs[5].s_paddr = esecs[5].s_vaddr = 0;
+ }
+ esecs[0].s_size = eah.tsize;
+ esecs[1].s_size = eah.dsize;
+ esecs[2].s_size = eah.bsize;
+ if (addflag) {
+ esecs[3].s_size = 0;
+ esecs[4].s_size = 0;
+ esecs[5].s_size = 0;
+ }
+ esecs[0].s_scnptr = N_TXTOFF(efh, eah);
+ esecs[1].s_scnptr = N_DATOFF(efh, eah);
+#define ECOFF_SEGMENT_ALIGNMENT(a) 0x10
+#define ECOFF_ROUND(s, a) (((s)+(a)-1)&~((a)-1))
+ esecs[2].s_scnptr = esecs[1].s_scnptr +
+ ECOFF_ROUND(esecs[1].s_size, ECOFF_SEGMENT_ALIGNMENT(&eah));
+ if (addflag) {
+ esecs[3].s_scnptr = 0;
+ esecs[4].s_scnptr = 0;
+ esecs[5].s_scnptr = 0;
+ }
+ esecs[0].s_relptr = esecs[1].s_relptr = esecs[2].s_relptr = 0;
+ esecs[0].s_lnnoptr = esecs[1].s_lnnoptr = esecs[2].s_lnnoptr = 0;
+ esecs[0].s_nreloc = esecs[1].s_nreloc = esecs[2].s_nreloc = 0;
+ esecs[0].s_nlnno = esecs[1].s_nlnno = esecs[2].s_nlnno = 0;
+ if (addflag) {
+ esecs[3].s_relptr = esecs[4].s_relptr
+ = esecs[5].s_relptr = 0;
+ esecs[3].s_lnnoptr = esecs[4].s_lnnoptr
+ = esecs[5].s_lnnoptr = 0;
+ esecs[3].s_nreloc = esecs[4].s_nreloc = esecs[5].s_nreloc =
+ 0;
+ esecs[3].s_nlnno = esecs[4].s_nlnno = esecs[5].s_nlnno = 0;
+ }
+ esecs[0].s_flags = 0x20;
+ esecs[1].s_flags = 0x40;
+ esecs[2].s_flags = 0x82;
+ if (addflag) {
+ esecs[3].s_flags = 0x100;
+ esecs[4].s_flags = 0x200;
+ esecs[5].s_flags = 0x400;
+ }
+
+ /* Make the output file... */
+ if ((outfile = open(argv[2], O_WRONLY | O_CREAT, 0777)) < 0) {
+ fprintf(stderr, "Unable to create %s: %s\n", argv[2],
+ strerror(errno));
+ exit(1);
+ }
+
+ if (must_convert_endian)
+ convert_ecoff_filehdr(&efh);
+ /* Write the headers... */
+ i = write(outfile, &efh, sizeof efh);
+ if (i != sizeof efh) {
+ perror("efh: write");
+ exit(1);
+
+ for (i = 0; i < nosecs; i++) {
+ printf
+ ("Section %d: %s phys %lx size %lx file offset %lx\n",
+ i, esecs[i].s_name, esecs[i].s_paddr,
+ esecs[i].s_size, esecs[i].s_scnptr);
+ }
+ }
+ fprintf(stderr, "wrote %d byte file header.\n", i);
+
+ if (must_convert_endian)
+ convert_ecoff_aouthdr(&eah);
+ i = write(outfile, &eah, sizeof eah);
+ if (i != sizeof eah) {
+ perror("eah: write");
+ exit(1);
+ }
+ fprintf(stderr, "wrote %d byte a.out header.\n", i);
+
+ if (must_convert_endian)
+ convert_ecoff_esecs(&esecs[0], nosecs);
+ i = write(outfile, &esecs, nosecs * sizeof(struct scnhdr));
+ if (i != nosecs * sizeof(struct scnhdr)) {
+ perror("esecs: write");
+ exit(1);
+ }
+ fprintf(stderr, "wrote %d bytes of section headers.\n", i);
+
+ pad = (sizeof(efh) + sizeof(eah) + nosecs * sizeof(struct scnhdr)) & 15;
+ if (pad) {
+ pad = 16 - pad;
+ i = write(outfile, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0", pad);
+ if (i < 0) {
+ perror("ipad: write");
+ exit(1);
+ }
+ fprintf(stderr, "wrote %d byte pad.\n", i);
+ }
+
+ /*
+ * Copy the loadable sections. Zero-fill any gaps less than 64k;
+ * complain about any zero-filling, and die if we're asked to zero-fill
+ * more than 64k.
+ */
+ for (i = 0; i < ex.e_phnum; i++) {
+ /* Unprocessable sections were handled above, so just verify that
+ the section can be loaded before copying. */
+ if (ph[i].p_type == PT_LOAD && ph[i].p_filesz) {
+ if (cur_vma != ph[i].p_vaddr) {
+ unsigned long gap =
+ ph[i].p_vaddr - cur_vma;
+ char obuf[1024];
+ if (gap > 65536) {
+ fprintf(stderr,
+ "Intersegment gap (%ld bytes) too large.\n",
+ gap);
+ exit(1);
+ }
+ fprintf(stderr,
+ "Warning: %ld byte intersegment gap.\n",
+ gap);
+ memset(obuf, 0, sizeof obuf);
+ while (gap) {
+ int count =
+ write(outfile, obuf,
+ (gap >
+ sizeof obuf ? sizeof
+ obuf : gap));
+ if (count < 0) {
+ fprintf(stderr,
+ "Error writing gap: %s\n",
+ strerror(errno));
+ exit(1);
+ }
+ gap -= count;
+ }
+ }
+ fprintf(stderr, "writing %d bytes...\n",
+ ph[i].p_filesz);
+ copy(outfile, infile, ph[i].p_offset,
+ ph[i].p_filesz);
+ cur_vma = ph[i].p_vaddr + ph[i].p_filesz;
+ }
+ }
+
+ /*
+ * Write a page of padding for boot PROMS that read entire pages.
+ * Without this, they may attempt to read past the end of the
+ * data section, incur an error, and refuse to boot.
+ */
+ {
+ char obuf[4096];
+ memset(obuf, 0, sizeof obuf);
+ if (write(outfile, obuf, sizeof(obuf)) != sizeof(obuf)) {
+ fprintf(stderr, "Error writing PROM padding: %s\n",
+ strerror(errno));
+ exit(1);
+ }
+ }
+
+ /* Looks like we won... */
+ exit(0);
+}