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Date:	Mon,  9 Jul 2007 19:52:11 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	andi@...stfloor.org, akpm@...ux-foundation.org
Cc:	"H. Peter Anvin" <hpa@...or.com>
Subject: [x86 setup 32/33] Use the new x86 setup code for x86-64; unify with i386

From: H. Peter Anvin <hpa@...or.com>

This unifies arch/*/boot (except arch/*/boot/compressed) between
i386 and x86-64, and uses the new x86 setup code for x86-64 as well.

Signed-off-by: H. Peter Anvin <hpa@...or.com>
---
 arch/x86_64/boot/Makefile            |  136 +------
 arch/x86_64/boot/bootsect.S          |   98 ----
 arch/x86_64/boot/compressed/Makefile |    9 +-
 arch/x86_64/boot/install.sh          |    2 -
 arch/x86_64/boot/mtools.conf.in      |   17 -
 arch/x86_64/boot/setup.S             |  826 ----------------------------------
 arch/x86_64/boot/tools/build.c       |  185 --------
 7 files changed, 10 insertions(+), 1263 deletions(-)
 delete mode 100644 arch/x86_64/boot/bootsect.S
 delete mode 100644 arch/x86_64/boot/install.sh
 delete mode 100644 arch/x86_64/boot/mtools.conf.in
 delete mode 100644 arch/x86_64/boot/setup.S
 delete mode 100644 arch/x86_64/boot/tools/build.c

diff --git a/arch/x86_64/boot/Makefile b/arch/x86_64/boot/Makefile
index ee6f650..6709638 100644
--- a/arch/x86_64/boot/Makefile
+++ b/arch/x86_64/boot/Makefile
@@ -1,135 +1,9 @@
 #
 # arch/x86_64/boot/Makefile
 #
-# 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 by Linus Torvalds
-#
-
-# ROOT_DEV specifies the default root-device when making the image.
-# This can be either FLOPPY, CURRENT, /dev/xxxx or empty, in which case
-# the default of FLOPPY is used by 'build'.
-
-ROOT_DEV := CURRENT
-
-# If you want to preset the SVGA mode, uncomment the next line and
-# set SVGA_MODE to whatever number you want.
-# Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
-# The number is the same as you would ordinarily press at bootup.
-
-SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
-
-# If you want the RAM disk device, define this to be the size in blocks.
-
-#RAMDISK := -DRAMDISK=512
-
-targets		:= vmlinux.bin bootsect bootsect.o \
-		   setup setup.o bzImage mtools.conf
-
-EXTRA_CFLAGS := -m32
-
-hostprogs-y	:= tools/build
-HOST_EXTRACFLAGS += $(LINUXINCLUDE)
-subdir-		:= compressed/	#Let make clean descend in compressed/
-# ---------------------------------------------------------------------------
-
-$(obj)/bzImage: IMAGE_OFFSET := 0x100000
-$(obj)/bzImage: EXTRA_AFLAGS := $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__
-$(obj)/bzImage: BUILDFLAGS   := -b
-
-quiet_cmd_image = BUILD   $@
-cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/bootsect $(obj)/setup \
-	    $(obj)/vmlinux.bin $(ROOT_DEV) > $@
-
-$(obj)/bzImage: $(obj)/bootsect $(obj)/setup \
-			      $(obj)/vmlinux.bin $(obj)/tools/build FORCE
-	$(call if_changed,image)
-	@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
-
-$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
-	$(call if_changed,objcopy)
-
-LDFLAGS_bootsect := -Ttext 0x0 -s --oformat binary
-LDFLAGS_setup	 := -Ttext 0x0 -s --oformat binary -e begtext
-
-$(obj)/setup $(obj)/bootsect: %: %.o FORCE
-	$(call if_changed,ld)
-
-$(obj)/compressed/vmlinux: FORCE
-	$(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@
-
-# Set this if you want to pass append arguments to the zdisk/fdimage/isoimage kernel
-FDARGS = 
-# Set this if you want an initrd included with the zdisk/fdimage/isoimage kernel
-FDINITRD =
-
-image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
-
-$(obj)/mtools.conf: $(src)/mtools.conf.in
-	sed -e 's|@OBJ@|$(obj)|g' < $< > $@
-
-# This requires write access to /dev/fd0
-zdisk: $(BOOTIMAGE) $(obj)/mtools.conf
-	MTOOLSRC=$(obj)/mtools.conf mformat a:			; sync
-	syslinux /dev/fd0					; sync
-	echo '$(image_cmdline)' | \
-		MTOOLSRC=$(obj)/mtools.conf mcopy - a:syslinux.cfg
-	if [ -f '$(FDINITRD)' ] ; then \
-		MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
-	fi
-	MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) a:linux	; sync
-
-# These require being root or having syslinux 2.02 or higher installed
-fdimage fdimage144: $(BOOTIMAGE) $(obj)/mtools.conf
-	dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
-	MTOOLSRC=$(obj)/mtools.conf mformat v:			; sync
-	syslinux $(obj)/fdimage					; sync
-	echo '$(image_cmdline)' | \
-		MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
-	if [ -f '$(FDINITRD)' ] ; then \
-		MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
-	fi
-	MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) v:linux	; sync
-
-fdimage288: $(BOOTIMAGE) $(obj)/mtools.conf
-	dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
-	MTOOLSRC=$(obj)/mtools.conf mformat w:			; sync
-	syslinux $(obj)/fdimage					; sync
-	echo '$(image_cmdline)' | \
-		MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
-	if [ -f '$(FDINITRD)' ] ; then \
-		MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
-	fi
-	MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) w:linux	; sync
-
-isoimage: $(BOOTIMAGE)
-	-rm -rf $(obj)/isoimage
-	mkdir $(obj)/isoimage
-	for i in lib lib64 share end ; do \
-		if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
-			cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
-			break ; \
-		fi ; \
-		if [ $$i = end ] ; then exit 1 ; fi ; \
-	done
-	cp $(BOOTIMAGE) $(obj)/isoimage/linux
-	echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
-	if [ -f '$(FDINITRD)' ] ; then \
-		cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
-	fi
-	mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
-		-no-emul-boot -boot-load-size 4 -boot-info-table \
-		$(obj)/isoimage
-	rm -rf $(obj)/isoimage
-
-zlilo: $(BOOTIMAGE)
-	if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
-	if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
-	cat $(BOOTIMAGE) > $(INSTALL_PATH)/vmlinuz
-	cp System.map $(INSTALL_PATH)/
-	if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
+# The actual boot code is shared with i386 including the Makefile.
+# So tell kbuild that we fetch the code from i386 and include the
+# Makefile from i386 too.
 
-install:
-	sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"
+src := arch/i386/boot
+include $(src)/Makefile
diff --git a/arch/x86_64/boot/bootsect.S b/arch/x86_64/boot/bootsect.S
deleted file mode 100644
index 011b7a4..0000000
--- a/arch/x86_64/boot/bootsect.S
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- *	bootsect.S		Copyright (C) 1991, 1992 Linus Torvalds
- *
- *	modified by Drew Eckhardt
- *	modified by Bruce Evans (bde)
- *	modified by Chris Noe (May 1999) (as86 -> gas)
- *	gutted by H. Peter Anvin (Jan 2003)
- *
- * BIG FAT NOTE: We're in real mode using 64k segments.  Therefore segment
- * addresses must be multiplied by 16 to obtain their respective linear
- * addresses. To avoid confusion, linear addresses are written using leading
- * hex while segment addresses are written as segment:offset.
- *
- */
-
-#include <asm/boot.h>
-
-SETUPSECTS	= 4			/* default nr of setup-sectors */
-BOOTSEG		= 0x07C0		/* original address of boot-sector */
-INITSEG		= DEF_INITSEG		/* we move boot here - out of the way */
-SETUPSEG	= DEF_SETUPSEG		/* setup starts here */
-SYSSEG		= DEF_SYSSEG		/* system loaded at 0x10000 (65536) */
-SYSSIZE		= DEF_SYSSIZE		/* system size: # of 16-byte clicks */
-					/* to be loaded */
-ROOT_DEV	= 0 			/* ROOT_DEV is now written by "build" */
-SWAP_DEV	= 0			/* SWAP_DEV is now written by "build" */
-
-#ifndef SVGA_MODE
-#define SVGA_MODE ASK_VGA
-#endif
-
-#ifndef RAMDISK
-#define RAMDISK 0
-#endif
-
-#ifndef ROOT_RDONLY
-#define ROOT_RDONLY 1
-#endif
-
-.code16
-.text
-
-.global _start
-_start:
-
-	# Normalize the start address
-	jmpl	$BOOTSEG, $start2
-
-start2:
-	movw	%cs, %ax
-	movw	%ax, %ds
-	movw	%ax, %es
-	movw	%ax, %ss
-	movw	$0x7c00, %sp
-	sti
-	cld
-
-	movw	$bugger_off_msg, %si
-
-msg_loop:
-	lodsb
-	andb	%al, %al
-	jz	die
-	movb	$0xe, %ah
-	movw	$7, %bx
-	int	$0x10
-	jmp	msg_loop
-
-die:
-	# Allow the user to press a key, then reboot
-	xorw	%ax, %ax
-	int	$0x16
-	int	$0x19
-
-	# int 0x19 should never return.  In case it does anyway,
-	# invoke the BIOS reset code...
-	ljmp	$0xf000,$0xfff0
-
-
-bugger_off_msg:
-	.ascii	"Direct booting from floppy is no longer supported.\r\n"
-	.ascii	"Please use a boot loader program instead.\r\n"
-	.ascii	"\n"
-	.ascii	"Remove disk and press any key to reboot . . .\r\n"
-	.byte	0
-
-
-	# Kernel attributes; used by setup
-
-	.org 497
-setup_sects:	.byte SETUPSECTS
-root_flags:	.word ROOT_RDONLY
-syssize:	.word SYSSIZE
-swap_dev:	.word SWAP_DEV
-ram_size:	.word RAMDISK
-vid_mode:	.word SVGA_MODE
-root_dev:	.word ROOT_DEV
-boot_flag:	.word 0xAA55
diff --git a/arch/x86_64/boot/compressed/Makefile b/arch/x86_64/boot/compressed/Makefile
index 705a3e3..c9f2da7 100644
--- a/arch/x86_64/boot/compressed/Makefile
+++ b/arch/x86_64/boot/compressed/Makefile
@@ -7,11 +7,12 @@
 #
 
 targets		:= vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o
-EXTRA_AFLAGS	:= -traditional
 
-# cannot use EXTRA_CFLAGS because base CFLAGS contains -mkernel which conflicts with
-# -m32
-CFLAGS := -m64 -D__KERNEL__ -Iinclude -O2  -fno-strict-aliasing -fPIC -mcmodel=small -fno-builtin
+CFLAGS := -m64 -D__KERNEL__ $(LINUXINCLUDE) -O2  \
+	  -fno-strict-aliasing -fPIC -mcmodel=small \
+	   $(call cc-option, -ffreestanding) \
+	   $(call cc-option, -fno-stack-protector)
+AFLAGS  := $(CFLAGS) -D__ASSEMBLY__
 LDFLAGS := -m elf_x86_64
 
 LDFLAGS_vmlinux := -T
diff --git a/arch/x86_64/boot/install.sh b/arch/x86_64/boot/install.sh
deleted file mode 100644
index baaa236..0000000
--- a/arch/x86_64/boot/install.sh
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-. $srctree/arch/i386/boot/install.sh
diff --git a/arch/x86_64/boot/mtools.conf.in b/arch/x86_64/boot/mtools.conf.in
deleted file mode 100644
index efd6d24..0000000
--- a/arch/x86_64/boot/mtools.conf.in
+++ /dev/null
@@ -1,17 +0,0 @@
-#
-# mtools configuration file for "make (b)zdisk"
-#
-
-# Actual floppy drive
-drive a:
-  file="/dev/fd0"
-
-# 1.44 MB floppy disk image
-drive v:
-  file="@OBJ@...image" cylinders=80 heads=2 sectors=18 filter
-
-# 2.88 MB floppy disk image (mostly for virtual uses)
-drive w:
-  file="@OBJ@...image" cylinders=80 heads=2 sectors=36 filter
-
-
diff --git a/arch/x86_64/boot/setup.S b/arch/x86_64/boot/setup.S
deleted file mode 100644
index e9e33f9..0000000
--- a/arch/x86_64/boot/setup.S
+++ /dev/null
@@ -1,826 +0,0 @@
-/*
- *	setup.S		Copyright (C) 1991, 1992 Linus Torvalds
- *
- * setup.s is responsible for getting the system data from the BIOS,
- * and putting them into the appropriate places in system memory.
- * both setup.s and system has been loaded by the bootblock.
- *
- * This code asks the bios for memory/disk/other parameters, and
- * puts them in a "safe" place: 0x90000-0x901FF, ie where the
- * boot-block used to be. It is then up to the protected mode
- * system to read them from there before the area is overwritten
- * for buffer-blocks.
- *
- * Move PS/2 aux init code to psaux.c
- * (troyer@...fr00.cfsat.Honeywell.COM) 03Oct92
- *
- * some changes and additional features by Christoph Niemann,
- * March 1993/June 1994 (Christoph.Niemann@...ux.org)
- *
- * add APM BIOS checking by Stephen Rothwell, May 1994
- * (sfr@...b.auug.org.au)
- *
- * High load stuff, initrd support and position independency
- * by Hans Lermen & Werner Almesberger, February 1996
- * <lermen@...erv.ffm.fgan.de>, <almesber@....epfl.ch>
- *
- * Video handling moved to video.S by Martin Mares, March 1996
- * <mj@...2.feld.cvut.cz>
- *
- * Extended memory detection scheme retwiddled by orc@...l.chi.il.us (david
- * parsons) to avoid loadlin confusion, July 1997
- *
- * Transcribed from Intel (as86) -> AT&T (gas) by Chris Noe, May 1999.
- * <stiker@...thlink.com>
- *
- * Fix to work around buggy BIOSes which don't use carry bit correctly
- * and/or report extended memory in CX/DX for e801h memory size detection 
- * call.  As a result the kernel got wrong figures.  The int15/e801h docs
- * from Ralf Brown interrupt list seem to indicate AX/BX should be used
- * anyway.  So to avoid breaking many machines (presumably there was a reason
- * to orginally use CX/DX instead of AX/BX), we do a kludge to see
- * if CX/DX have been changed in the e801 call and if so use AX/BX .
- * Michael Miller, April 2001 <michaelm@...m.org>
- *
- * Added long mode checking and SSE force. March 2003, Andi Kleen.		
- */
-
-#include <asm/segment.h>
-#include <linux/utsrelease.h>
-#include <linux/compile.h>
-#include <asm/boot.h>
-#include <asm/e820.h>
-#include <asm/page.h>
-#include <asm/setup.h>
-
-/* Signature words to ensure LILO loaded us right */
-#define SIG1	0xAA55
-#define SIG2	0x5A5A
-
-INITSEG  = DEF_INITSEG		# 0x9000, we move boot here, out of the way
-SYSSEG   = DEF_SYSSEG		# 0x1000, system loaded at 0x10000 (65536).
-SETUPSEG = DEF_SETUPSEG		# 0x9020, this is the current segment
-				# ... and the former contents of CS
-
-DELTA_INITSEG = SETUPSEG - INITSEG	# 0x0020
-
-.code16
-.globl begtext, begdata, begbss, endtext, enddata, endbss
-
-.text
-begtext:
-.data
-begdata:
-.bss
-begbss:
-.text
-
-start:
-	jmp	trampoline
-
-# This is the setup header, and it must start at %cs:2 (old 0x9020:2)
-
-		.ascii	"HdrS"		# header signature
-		.word	0x0206		# header version number (>= 0x0105)
-					# or else old loadlin-1.5 will fail)
-realmode_swtch:	.word	0, 0		# default_switch, SETUPSEG
-start_sys_seg:	.word	SYSSEG
-		.word	kernel_version	# pointing to kernel version string
-					# above section of header is compatible
-					# with loadlin-1.5 (header v1.5). Don't
-					# change it.
-
-type_of_loader:	.byte	0		# = 0, old one (LILO, Loadlin,
-					#      Bootlin, SYSLX, bootsect...)
-					# See Documentation/i386/boot.txt for
-					# assigned ids
-	
-# flags, unused bits must be zero (RFU) bit within loadflags
-loadflags:
-LOADED_HIGH	= 1			# If set, the kernel is loaded high
-CAN_USE_HEAP	= 0x80			# If set, the loader also has set
-					# heap_end_ptr to tell how much
-					# space behind setup.S can be used for
-					# heap purposes.
-					# Only the loader knows what is free
-#ifndef __BIG_KERNEL__
-		.byte	0
-#else
-		.byte	LOADED_HIGH
-#endif
-
-setup_move_size: .word  0x8000		# size to move, when setup is not
-					# loaded at 0x90000. We will move setup 
-					# to 0x90000 then just before jumping
-					# into the kernel. However, only the
-					# loader knows how much data behind
-					# us also needs to be loaded.
-
-code32_start:				# here loaders can put a different
-					# start address for 32-bit code.
-#ifndef __BIG_KERNEL__
-		.long	0x1000		#   0x1000 = default for zImage
-#else
-		.long	0x100000	# 0x100000 = default for big kernel
-#endif
-
-ramdisk_image:	.long	0		# address of loaded ramdisk image
-					# Here the loader puts the 32-bit
-					# address where it loaded the image.
-					# This only will be read by the kernel.
-
-ramdisk_size:	.long	0		# its size in bytes
-
-bootsect_kludge:
-		.long	0		# obsolete
-
-heap_end_ptr:	.word	modelist+1024	# (Header version 0x0201 or later)
-					# space from here (exclusive) down to
-					# end of setup code can be used by setup
-					# for local heap purposes.
-
-pad1:		.word	0
-cmd_line_ptr:	.long 0			# (Header version 0x0202 or later)
-					# If nonzero, a 32-bit pointer
-					# to the kernel command line.
-					# The command line should be
-					# located between the start of
-					# setup and the end of low
-					# memory (0xa0000), or it may
-					# get overwritten before it
-					# gets read.  If this field is
-					# used, there is no longer
-					# anything magical about the
-					# 0x90000 segment; the setup
-					# can be located anywhere in
-					# low memory 0x10000 or higher.
-
-ramdisk_max:	.long 0xffffffff
-kernel_alignment:  .long 0x200000       # physical addr alignment required for
-					# protected mode relocatable kernel
-#ifdef CONFIG_RELOCATABLE
-relocatable_kernel:    .byte 1
-#else
-relocatable_kernel:    .byte 0
-#endif
-pad2:                  .byte 0
-pad3:                  .word 0
-
-cmdline_size:   .long   COMMAND_LINE_SIZE-1     #length of the command line,
-                                                #added with boot protocol
-                                                #version 2.06
-
-trampoline:	call	start_of_setup
-		.align 16
-					# The offset at this point is 0x240
-		.space  (0xeff-0x240+1)	# E820 & EDD space (ending at 0xeff)
-# End of setup header #####################################################
-
-start_of_setup:
-# Bootlin depends on this being done early
-	movw	$0x01500, %ax
-	movb	$0x81, %dl
-	int	$0x13
-
-#ifdef SAFE_RESET_DISK_CONTROLLER
-# Reset the disk controller.
-	movw	$0x0000, %ax
-	movb	$0x80, %dl
-	int	$0x13
-#endif
-
-# Set %ds = %cs, we know that SETUPSEG = %cs at this point
-	movw	%cs, %ax		# aka SETUPSEG
-	movw	%ax, %ds
-# Check signature at end of setup
-	cmpw	$SIG1, setup_sig1
-	jne	bad_sig
-
-	cmpw	$SIG2, setup_sig2
-	jne	bad_sig
-
-	jmp	good_sig1
-
-# Routine to print asciiz string at ds:si
-prtstr:
-	lodsb
-	andb	%al, %al
-	jz	fin
-
-	call	prtchr
-	jmp	prtstr
-
-fin:	ret
-
-# Space printing
-prtsp2:	call	prtspc		# Print double space
-prtspc:	movb	$0x20, %al	# Print single space (note: fall-thru)
-
-prtchr:	
-	pushw	%ax
-	pushw	%cx
-	movw	$0007,%bx
-	movw	$0x01, %cx
-	movb	$0x0e, %ah
-	int	$0x10
-	popw	%cx
-	popw	%ax
-	ret
-
-beep:	movb	$0x07, %al
-	jmp	prtchr
-	
-no_sig_mess: .string	"No setup signature found ..."
-
-good_sig1:
-	jmp	good_sig
-
-# We now have to find the rest of the setup code/data
-bad_sig:
-	movw	%cs, %ax			# SETUPSEG
-	subw	$DELTA_INITSEG, %ax		# INITSEG
-	movw	%ax, %ds
-	xorb	%bh, %bh
-	movb	(497), %bl			# get setup sect from bootsect
-	subw	$4, %bx				# LILO loads 4 sectors of setup
-	shlw	$8, %bx				# convert to words (1sect=2^8 words)
-	movw	%bx, %cx
-	shrw	$3, %bx				# convert to segment
-	addw	$SYSSEG, %bx
-	movw	%bx, %cs:start_sys_seg
-# Move rest of setup code/data to here
-	movw	$2048, %di			# four sectors loaded by LILO
-	subw	%si, %si
-	movw	%cs, %ax			# aka SETUPSEG
-	movw	%ax, %es
-	movw	$SYSSEG, %ax
-	movw	%ax, %ds
-	rep
-	movsw
-	movw	%cs, %ax			# aka SETUPSEG
-	movw	%ax, %ds
-	cmpw	$SIG1, setup_sig1
-	jne	no_sig
-
-	cmpw	$SIG2, setup_sig2
-	jne	no_sig
-
-	jmp	good_sig
-
-no_sig:
-	lea	no_sig_mess, %si
-	call	prtstr
-
-no_sig_loop:
-	jmp	no_sig_loop
-
-good_sig:
-	movw	%cs, %ax			# aka SETUPSEG
-	subw	$DELTA_INITSEG, %ax 		# aka INITSEG
-	movw	%ax, %ds
-# Check if an old loader tries to load a big-kernel
-	testb	$LOADED_HIGH, %cs:loadflags	# Do we have a big kernel?
-	jz	loader_ok			# No, no danger for old loaders.
-
-	cmpb	$0, %cs:type_of_loader 		# Do we have a loader that
-						# can deal with us?
-	jnz	loader_ok			# Yes, continue.
-
-	pushw	%cs				# No, we have an old loader,
-	popw	%ds				# die. 
-	lea	loader_panic_mess, %si
-	call	prtstr
-
-	jmp	no_sig_loop
-
-loader_panic_mess: .string "Wrong loader, giving up..."
-
-loader_ok:
-	/* check for long mode. */
-	/* we have to do this before the VESA setup, otherwise the user
-	   can't see the error message. */
-	
-	pushw	%ds
-	movw	%cs,%ax
-	movw	%ax,%ds
-	
-	call verify_cpu
-	testl %eax,%eax
-	jz sse_ok
-
-no_longmode:
-	call	beep
-	lea	long_mode_panic,%si
-	call	prtstr
-no_longmode_loop:		
-	jmp	no_longmode_loop
-long_mode_panic:
-	.string "Your CPU does not support long mode. Use a 32bit distribution."
-	.byte 0
-
-#include "../kernel/verify_cpu.S"
-sse_ok:
-	popw	%ds
-	
-# tell BIOS we want to go to long mode
-	movl  $0xec00,%eax	# declare target operating mode
-	movl  $2,%ebx		# long mode
-	int $0x15			
-	
-# Get memory size (extended mem, kB)
-
-	xorl	%eax, %eax
-	movl	%eax, (0x1e0)
-#ifndef STANDARD_MEMORY_BIOS_CALL
-	movb	%al, (E820NR)
-# Try three different memory detection schemes.  First, try
-# e820h, which lets us assemble a memory map, then try e801h,
-# which returns a 32-bit memory size, and finally 88h, which
-# returns 0-64m
-
-# method E820H:
-# the memory map from hell.  e820h returns memory classified into
-# a whole bunch of different types, and allows memory holes and
-# everything.  We scan through this memory map and build a list
-# of the first 32 memory areas, which we return at [E820MAP].
-# This is documented at http://www.acpi.info/, in the ACPI 2.0 specification.
-
-#define SMAP  0x534d4150
-
-meme820:
-	xorl	%ebx, %ebx			# continuation counter
-	movw	$E820MAP, %di			# point into the whitelist
-						# so we can have the bios
-						# directly write into it.
-
-jmpe820:
-	movl	$0x0000e820, %eax		# e820, upper word zeroed
-	movl	$SMAP, %edx			# ascii 'SMAP'
-	movl	$20, %ecx			# size of the e820rec
-	pushw	%ds				# data record.
-	popw	%es
-	int	$0x15				# make the call
-	jc	bail820				# fall to e801 if it fails
-
-	cmpl	$SMAP, %eax			# check the return is `SMAP'
-	jne	bail820				# fall to e801 if it fails
-
-#	cmpl	$1, 16(%di)			# is this usable memory?
-#	jne	again820
-
-	# If this is usable memory, we save it by simply advancing %di by
-	# sizeof(e820rec).
-	#
-good820:
-	movb	(E820NR), %al			# up to 128 entries
-	cmpb	$E820MAX, %al
-	jae	bail820
-
-	incb	(E820NR)
-	movw	%di, %ax
-	addw	$20, %ax
-	movw	%ax, %di
-again820:
-	cmpl	$0, %ebx			# check to see if
-	jne	jmpe820				# %ebx is set to EOF
-bail820:
-
-
-# method E801H:
-# memory size is in 1k chunksizes, to avoid confusing loadlin.
-# we store the 0xe801 memory size in a completely different place,
-# because it will most likely be longer than 16 bits.
-# (use 1e0 because that's what Larry Augustine uses in his
-# alternative new memory detection scheme, and it's sensible
-# to write everything into the same place.)
-
-meme801:
-	stc					# fix to work around buggy
-	xorw	%cx,%cx				# BIOSes which don't clear/set
-	xorw	%dx,%dx				# carry on pass/error of
-						# e801h memory size call
-						# or merely pass cx,dx though
-						# without changing them.
-	movw	$0xe801, %ax
-	int	$0x15
-	jc	mem88
-
-	cmpw	$0x0, %cx			# Kludge to handle BIOSes
-	jne	e801usecxdx			# which report their extended
-	cmpw	$0x0, %dx			# memory in AX/BX rather than
-	jne	e801usecxdx			# CX/DX.  The spec I have read
-	movw	%ax, %cx			# seems to indicate AX/BX 
-	movw	%bx, %dx			# are more reasonable anyway...
-
-e801usecxdx:
-	andl	$0xffff, %edx			# clear sign extend
-	shll	$6, %edx			# and go from 64k to 1k chunks
-	movl	%edx, (0x1e0)			# store extended memory size
-	andl	$0xffff, %ecx			# clear sign extend
- 	addl	%ecx, (0x1e0)			# and add lower memory into
-						# total size.
-
-# Ye Olde Traditional Methode.  Returns the memory size (up to 16mb or
-# 64mb, depending on the bios) in ax.
-mem88:
-
-#endif
-	movb	$0x88, %ah
-	int	$0x15
-	movw	%ax, (2)
-
-# Set the keyboard repeat rate to the max
-	movw	$0x0305, %ax
-	xorw	%bx, %bx
-	int	$0x16
-
-# Check for video adapter and its parameters and allow the
-# user to browse video modes.
-	call	video				# NOTE: we need %ds pointing
-						# to bootsector
-
-# Get hd0 data...
-	xorw	%ax, %ax
-	movw	%ax, %ds
-	ldsw	(4 * 0x41), %si
-	movw	%cs, %ax			# aka SETUPSEG
-	subw	$DELTA_INITSEG, %ax		# aka INITSEG
-	pushw	%ax
-	movw	%ax, %es
-	movw	$0x0080, %di
-	movw	$0x10, %cx
-	pushw	%cx
-	cld
-	rep
- 	movsb
-# Get hd1 data...
-	xorw	%ax, %ax
-	movw	%ax, %ds
-	ldsw	(4 * 0x46), %si
-	popw	%cx
-	popw	%es
-	movw	$0x0090, %di
-	rep
-	movsb
-# Check that there IS a hd1 :-)
-	movw	$0x01500, %ax
-	movb	$0x81, %dl
-	int	$0x13
-	jc	no_disk1
-	
-	cmpb	$3, %ah
-	je	is_disk1
-
-no_disk1:
-	movw	%cs, %ax			# aka SETUPSEG
-	subw	$DELTA_INITSEG, %ax 		# aka INITSEG
-	movw	%ax, %es
-	movw	$0x0090, %di
-	movw	$0x10, %cx
-	xorw	%ax, %ax
-	cld
-	rep
-	stosb
-is_disk1:
-
-# Check for PS/2 pointing device
-	movw	%cs, %ax			# aka SETUPSEG
-	subw	$DELTA_INITSEG, %ax		# aka INITSEG
-	movw	%ax, %ds
-	movb	$0, (0x1ff)			# default is no pointing device
-	int	$0x11				# int 0x11: equipment list
-	testb	$0x04, %al			# check if mouse installed
-	jz	no_psmouse
-
-	movb	$0xAA, (0x1ff)			# device present
-no_psmouse:
-
-#include "../../i386/boot/edd.S"
-
-# Now we want to move to protected mode ...
-	cmpw	$0, %cs:realmode_swtch
-	jz	rmodeswtch_normal
-
-	lcall	*%cs:realmode_swtch
-
-	jmp	rmodeswtch_end
-
-rmodeswtch_normal:
-        pushw	%cs
-	call	default_switch
-
-rmodeswtch_end:
-# we get the code32 start address and modify the below 'jmpi'
-# (loader may have changed it)
-	movl	%cs:code32_start, %eax
-	movl	%eax, %cs:code32
-
-# Now we move the system to its rightful place ... but we check if we have a
-# big-kernel. In that case we *must* not move it ...
-	testb	$LOADED_HIGH, %cs:loadflags
-	jz	do_move0			# .. then we have a normal low
-						# loaded zImage
-						# .. or else we have a high
-						# loaded bzImage
-	jmp	end_move			# ... and we skip moving
-
-do_move0:
-	movw	$0x100, %ax			# start of destination segment
-	movw	%cs, %bp			# aka SETUPSEG
-	subw	$DELTA_INITSEG, %bp		# aka INITSEG
-	movw	%cs:start_sys_seg, %bx		# start of source segment
-	cld
-do_move:
-	movw	%ax, %es			# destination segment
-	incb	%ah				# instead of add ax,#0x100
-	movw	%bx, %ds			# source segment
-	addw	$0x100, %bx
-	subw	%di, %di
-	subw	%si, %si
-	movw 	$0x800, %cx
-	rep
-	movsw
-	cmpw	%bp, %bx			# assume start_sys_seg > 0x200,
-						# so we will perhaps read one
-						# page more than needed, but
-						# never overwrite INITSEG
-						# because destination is a
-						# minimum one page below source
-	jb	do_move
-
-end_move:
-# then we load the segment descriptors
-	movw	%cs, %ax			# aka SETUPSEG
-	movw	%ax, %ds
-		
-# Check whether we need to be downward compatible with version <=201
-	cmpl	$0, cmd_line_ptr
-	jne	end_move_self		# loader uses version >=202 features
-	cmpb	$0x20, type_of_loader
-	je	end_move_self		# bootsect loader, we know of it
-
-# Boot loader doesnt support boot protocol version 2.02.
-# If we have our code not at 0x90000, we need to move it there now.
-# We also then need to move the params behind it (commandline)
-# Because we would overwrite the code on the current IP, we move
-# it in two steps, jumping high after the first one.
-	movw	%cs, %ax
-	cmpw	$SETUPSEG, %ax
-	je	end_move_self
-
-	cli					# make sure we really have
-						# interrupts disabled !
-						# because after this the stack
-						# should not be used
-	subw	$DELTA_INITSEG, %ax		# aka INITSEG
-	movw	%ss, %dx
-	cmpw	%ax, %dx
-	jb	move_self_1
-
-	addw	$INITSEG, %dx
-	subw	%ax, %dx			# this will go into %ss after
-						# the move
-move_self_1:
-	movw	%ax, %ds
-	movw	$INITSEG, %ax			# real INITSEG
-	movw	%ax, %es
-	movw	%cs:setup_move_size, %cx
-	std					# we have to move up, so we use
-						# direction down because the
-						# areas may overlap
-	movw	%cx, %di
-	decw	%di
-	movw	%di, %si
-	subw	$move_self_here+0x200, %cx
-	rep
-	movsb
-	ljmp	$SETUPSEG, $move_self_here
-
-move_self_here:
-	movw	$move_self_here+0x200, %cx
-	rep
-	movsb
-	movw	$SETUPSEG, %ax
-	movw	%ax, %ds
-	movw	%dx, %ss
-end_move_self:					# now we are at the right place
-	lidt	idt_48				# load idt with 0,0
-	xorl	%eax, %eax			# Compute gdt_base
-	movw	%ds, %ax			# (Convert %ds:gdt to a linear ptr)
-	shll	$4, %eax
-	addl	$gdt, %eax
-	movl	%eax, (gdt_48+2)
-	lgdt	gdt_48				# load gdt with whatever is
-						# appropriate
-
-# that was painless, now we enable a20
-	call	empty_8042
-
-	movb	$0xD1, %al			# command write
-	outb	%al, $0x64
-	call	empty_8042
-
-	movb	$0xDF, %al			# A20 on
-	outb	%al, $0x60
-	call	empty_8042
-
-#
-#	You must preserve the other bits here. Otherwise embarrasing things
-#	like laptops powering off on boot happen. Corrected version by Kira
-#	Brown from Linux 2.2
-#
-	inb	$0x92, %al			# 
-	orb	$02, %al			# "fast A20" version
-	outb	%al, $0x92			# some chips have only this
-
-# wait until a20 really *is* enabled; it can take a fair amount of
-# time on certain systems; Toshiba Tecras are known to have this
-# problem.  The memory location used here (0x200) is the int 0x80
-# vector, which should be safe to use.
-
-	xorw	%ax, %ax			# segment 0x0000
-	movw	%ax, %fs
-	decw	%ax				# segment 0xffff (HMA)
-	movw	%ax, %gs
-a20_wait:
-	incw	%ax				# unused memory location <0xfff0
-	movw	%ax, %fs:(0x200)		# we use the "int 0x80" vector
-	cmpw	%gs:(0x210), %ax		# and its corresponding HMA addr
-	je	a20_wait			# loop until no longer aliased
-
-# make sure any possible coprocessor is properly reset..
-	xorw	%ax, %ax
-	outb	%al, $0xf0
-	call	delay
-
-	outb	%al, $0xf1
-	call	delay
-
-# well, that went ok, I hope. Now we mask all interrupts - the rest
-# is done in init_IRQ().
-	movb	$0xFF, %al			# mask all interrupts for now
-	outb	%al, $0xA1
-	call	delay
-	
-	movb	$0xFB, %al			# mask all irq's but irq2 which
-	outb	%al, $0x21			# is cascaded
-
-# Well, that certainly wasn't fun :-(. Hopefully it works, and we don't
-# need no steenking BIOS anyway (except for the initial loading :-).
-# The BIOS-routine wants lots of unnecessary data, and it's less
-# "interesting" anyway. This is how REAL programmers do it.
-#
-# Well, now's the time to actually move into protected mode. To make
-# things as simple as possible, we do no register set-up or anything,
-# we let the gnu-compiled 32-bit programs do that. We just jump to
-# absolute address 0x1000 (or the loader supplied one),
-# in 32-bit protected mode.
-#
-# Note that the short jump isn't strictly needed, although there are
-# reasons why it might be a good idea. It won't hurt in any case.
-	movw	$1, %ax				# protected mode (PE) bit
-	lmsw	%ax				# This is it!
-	jmp	flush_instr
-
-flush_instr:
-	xorw	%bx, %bx			# Flag to indicate a boot
-	xorl	%esi, %esi			# Pointer to real-mode code
-	movw	%cs, %si
-	subw	$DELTA_INITSEG, %si
-	shll	$4, %esi			# Convert to 32-bit pointer
-# NOTE: For high loaded big kernels we need a
-#	jmpi    0x100000,__KERNEL_CS
-#
-#	but we yet haven't reloaded the CS register, so the default size 
-#	of the target offset still is 16 bit.
-#	However, using an operand prefix (0x66), the CPU will properly
-#	take our 48 bit far pointer. (INTeL 80386 Programmer's Reference
-#	Manual, Mixing 16-bit and 32-bit code, page 16-6)
-
-	.byte 0x66, 0xea			# prefix + jmpi-opcode
-code32:	.long	0x1000				# will be set to 0x100000
-						# for big kernels
-	.word	__KERNEL_CS
-
-# Here's a bunch of information about your current kernel..
-kernel_version:	.ascii	UTS_RELEASE
-		.ascii	" ("
-		.ascii	LINUX_COMPILE_BY
-		.ascii	"@"
-		.ascii	LINUX_COMPILE_HOST
-		.ascii	") "
-		.ascii	UTS_VERSION
-		.byte	0
-
-# This is the default real mode switch routine.
-# to be called just before protected mode transition
-default_switch:
-	cli					# no interrupts allowed !
-	movb	$0x80, %al			# disable NMI for bootup
-						# sequence
-	outb	%al, $0x70
-	lret
-
-
-# This routine checks that the keyboard command queue is empty
-# (after emptying the output buffers)
-#
-# Some machines have delusions that the keyboard buffer is always full
-# with no keyboard attached...
-#
-# If there is no keyboard controller, we will usually get 0xff
-# to all the reads.  With each IO taking a microsecond and
-# a timeout of 100,000 iterations, this can take about half a
-# second ("delay" == outb to port 0x80). That should be ok,
-# and should also be plenty of time for a real keyboard controller
-# to empty.
-#
-
-empty_8042:
-	pushl	%ecx
-	movl	$100000, %ecx
-
-empty_8042_loop:
-	decl	%ecx
-	jz	empty_8042_end_loop
-
-	call	delay
-
-	inb	$0x64, %al			# 8042 status port
-	testb	$1, %al				# output buffer?
-	jz	no_output
-
-	call	delay
-	inb	$0x60, %al			# read it
-	jmp	empty_8042_loop
-
-no_output:
-	testb	$2, %al				# is input buffer full?
-	jnz	empty_8042_loop			# yes - loop
-empty_8042_end_loop:
-	popl	%ecx
-	ret
-
-# Read the cmos clock. Return the seconds in al
-gettime:
-	pushw	%cx
-	movb	$0x02, %ah
-	int	$0x1a
-	movb	%dh, %al			# %dh contains the seconds
-	andb	$0x0f, %al
-	movb	%dh, %ah
-	movb	$0x04, %cl
-	shrb	%cl, %ah
-	aad
-	popw	%cx
-	ret
-
-# Delay is needed after doing I/O
-delay:
-	outb	%al,$0x80
-	ret
-
-# Descriptor tables
-gdt:
-	.word	0, 0, 0, 0			# dummy
-
-	.word	0, 0, 0, 0			# unused
-
-	.word	0xFFFF				# 4Gb - (0x100000*0x1000 = 4Gb)
-	.word	0				# base address = 0
-	.word	0x9A00				# code read/exec
-	.word	0x00CF				# granularity = 4096, 386
-						#  (+5th nibble of limit)
-
-	.word	0xFFFF				# 4Gb - (0x100000*0x1000 = 4Gb)
-	.word	0				# base address = 0
-	.word	0x9200				# data read/write
-	.word	0x00CF				# granularity = 4096, 386
-						#  (+5th nibble of limit)
-gdt_end:
-idt_48:
-	.word	0				# idt limit = 0
-	.word	0, 0				# idt base = 0L
-gdt_48:
-	.word	gdt_end-gdt-1			# gdt limit
-	.word	0, 0				# gdt base (filled in later)
-
-# Include video setup & detection code
-
-#include "../../i386/boot/video.S"
-
-# Setup signature -- must be last
-setup_sig1:	.word	SIG1
-setup_sig2:	.word	SIG2
-
-# After this point, there is some free space which is used by the video mode
-# handling code to store the temporary mode table (not used by the kernel).
-
-modelist:
-
-.text
-endtext:
-.data
-enddata:
-.bss
-endbss:
diff --git a/arch/x86_64/boot/tools/build.c b/arch/x86_64/boot/tools/build.c
deleted file mode 100644
index eae8669..0000000
--- a/arch/x86_64/boot/tools/build.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- *  Copyright (C) 1991, 1992  Linus Torvalds
- *  Copyright (C) 1997 Martin Mares
- */
-
-/*
- * This file builds a disk-image from three different files:
- *
- * - bootsect: compatibility mbr which prints an error message if
- *             someone tries to boot the kernel directly.
- * - setup: 8086 machine code, sets up system parm
- * - system: 80386 code for actual system
- *
- * It does some checking that all files are of the correct type, and
- * just writes the result to stdout, removing headers and padding to
- * the right amount. It also writes some system data to stderr.
- */
-
-/*
- * Changes by tytso to allow root device specification
- * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996
- * Cross compiling fixes by Gertjan van Wingerde, July 1996
- * Rewritten by Martin Mares, April 1997
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/sysmacros.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <asm/boot.h>
-
-typedef unsigned char byte;
-typedef unsigned short word;
-typedef unsigned long u32;
-
-#define DEFAULT_MAJOR_ROOT 0
-#define DEFAULT_MINOR_ROOT 0
-
-/* Minimal number of setup sectors (see also bootsect.S) */
-#define SETUP_SECTS 4
-
-byte buf[1024];
-int fd;
-int is_big_kernel;
-
-void die(const char * str, ...)
-{
-	va_list args;
-	va_start(args, str);
-	vfprintf(stderr, str, args);
-	fputc('\n', stderr);
-	exit(1);
-}
-
-void file_open(const char *name)
-{
-	if ((fd = open(name, O_RDONLY, 0)) < 0)
-		die("Unable to open `%s': %m", name);
-}
-
-void usage(void)
-{
-	die("Usage: build [-b] bootsect setup system [rootdev] [> image]");
-}
-
-int main(int argc, char ** argv)
-{
-	unsigned int i, c, sz, setup_sectors;
-	u32 sys_size;
-	byte major_root, minor_root;
-	struct stat sb;
-
-	if (argc > 2 && !strcmp(argv[1], "-b"))
-	  {
-	    is_big_kernel = 1;
-	    argc--, argv++;
-	  }
-	if ((argc < 4) || (argc > 5))
-		usage();
-	if (argc > 4) {
-		if (!strcmp(argv[4], "CURRENT")) {
-			if (stat("/", &sb)) {
-				perror("/");
-				die("Couldn't stat /");
-			}
-			major_root = major(sb.st_dev);
-			minor_root = minor(sb.st_dev);
-		} else if (strcmp(argv[4], "FLOPPY")) {
-			if (stat(argv[4], &sb)) {
-				perror(argv[4]);
-				die("Couldn't stat root device.");
-			}
-			major_root = major(sb.st_rdev);
-			minor_root = minor(sb.st_rdev);
-		} else {
-			major_root = 0;
-			minor_root = 0;
-		}
-	} else {
-		major_root = DEFAULT_MAJOR_ROOT;
-		minor_root = DEFAULT_MINOR_ROOT;
-	}
-	fprintf(stderr, "Root device is (%d, %d)\n", major_root, minor_root);
-
-	file_open(argv[1]);
-	i = read(fd, buf, sizeof(buf));
-	fprintf(stderr,"Boot sector %d bytes.\n",i);
-	if (i != 512)
-		die("Boot block must be exactly 512 bytes");
-	if (buf[510] != 0x55 || buf[511] != 0xaa)
-		die("Boot block hasn't got boot flag (0xAA55)");
-	buf[508] = minor_root;
-	buf[509] = major_root;
-	if (write(1, buf, 512) != 512)
-		die("Write call failed");
-	close (fd);
-
-	file_open(argv[2]);				    /* Copy the setup code */
-	for (i=0 ; (c=read(fd, buf, sizeof(buf)))>0 ; i+=c )
-		if (write(1, buf, c) != c)
-			die("Write call failed");
-	if (c != 0)
-		die("read-error on `setup'");
-	close (fd);
-
-	setup_sectors = (i + 511) / 512;	/* Pad unused space with zeros */
-	/* for compatibility with ancient versions of LILO. */
-	if (setup_sectors < SETUP_SECTS)
-		setup_sectors = SETUP_SECTS;
-	fprintf(stderr, "Setup is %d bytes.\n", i);
-	memset(buf, 0, sizeof(buf));
-	while (i < setup_sectors * 512) {
-		c = setup_sectors * 512 - i;
-		if (c > sizeof(buf))
-			c = sizeof(buf);
-		if (write(1, buf, c) != c)
-			die("Write call failed");
-		i += c;
-	}
-
-	file_open(argv[3]);
-	if (fstat (fd, &sb))
-		die("Unable to stat `%s': %m", argv[3]);
-	sz = sb.st_size;
-	fprintf (stderr, "System is %d kB\n", sz/1024);
-	sys_size = (sz + 15) / 16;
-	if (!is_big_kernel && sys_size > DEF_SYSSIZE)
-		die("System is too big. Try using bzImage or modules.");
-	while (sz > 0) {
-		int l, n;
-
-		l = (sz > sizeof(buf)) ? sizeof(buf) : sz;
-		if ((n=read(fd, buf, l)) != l) {
-			if (n < 0)
-				die("Error reading %s: %m", argv[3]);
-			else
-				die("%s: Unexpected EOF", argv[3]);
-		}
-		if (write(1, buf, l) != l)
-			die("Write failed");
-		sz -= l;
-	}
-	close(fd);
-
-	if (lseek(1, 497, SEEK_SET) != 497)		    /* Write sizes to the bootsector */
-		die("Output: seek failed");
-	buf[0] = setup_sectors;
-	if (write(1, buf, 1) != 1)
-		die("Write of setup sector count failed");
-	if (lseek(1, 500, SEEK_SET) != 500)
-		die("Output: seek failed");
-	buf[0] = (sys_size & 0xff);
-	buf[1] = ((sys_size >> 8) & 0xff);
-	buf[2] = ((sys_size >> 16) & 0xff);
-	buf[3] = ((sys_size >> 24) & 0xff);
-	if (write(1, buf, 4) != 4)
-		die("Write of image length failed");
-
-	return 0;					    /* Everything is OK */
-}
-- 
1.5.2.2

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