SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
targets := vmlinux.bin setup.bin setup.elf bzImage
-targets += fdimage fdimage144 fdimage288 image.iso mtools.conf
+targets += fdimage fdimage144 fdimage288 image.iso hdimage
subdir- := compressed
setup-y += a20.o bioscall.o cmdline.o copy.o cpu.o cpuflags.o cpucheck.o
$(Q)$(MAKE) $(build)=$(obj)/compressed $@
# Set this if you want to pass append arguments to the
-# bzdisk/fdimage/isoimage kernel
+# bzdisk/fdimage/hdimage/isoimage kernel
FDARGS =
-# Set this if you want an initrd included with the
-# bzdisk/fdimage/isoimage kernel
+# Set this if you want one or more initrds included in the image
FDINITRD =
-image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
+imgdeps = $(obj)/bzImage $(obj)/mtools.conf $(src)/genimage.sh
$(obj)/mtools.conf: $(src)/mtools.conf.in
sed -e 's|@OBJ@|$(obj)|g' < $< > $@
+targets += mtools.conf
+
+# genimage.sh requires bash, but it also has a bunch of other
+# external dependencies.
quiet_cmd_genimage = GENIMAGE $3
-cmd_genimage = sh $(srctree)/$(src)/genimage.sh $2 $3 $(obj)/bzImage \
- $(obj)/mtools.conf '$(image_cmdline)' $(FDINITRD)
+cmd_genimage = $(BASH) $(srctree)/$(src)/genimage.sh $2 $3 $(obj)/bzImage \
+ $(obj)/mtools.conf '$(FDARGS)' $(FDINITRD)
-PHONY += bzdisk fdimage fdimage144 fdimage288 isoimage bzlilo install
+PHONY += bzdisk fdimage fdimage144 fdimage288 hdimage isoimage install
# This requires write access to /dev/fd0
-bzdisk: $(obj)/bzImage $(obj)/mtools.conf
+# All images require syslinux to be installed; hdimage also requires
+# EDK2/OVMF if the kernel is compiled with the EFI stub.
+bzdisk: $(imgdeps)
$(call cmd,genimage,bzdisk,/dev/fd0)
-# These require being root or having syslinux 2.02 or higher installed
-fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf
+fdimage fdimage144: $(imgdeps)
$(call cmd,genimage,fdimage144,$(obj)/fdimage)
@$(kecho) 'Kernel: $(obj)/fdimage is ready'
-fdimage288: $(obj)/bzImage $(obj)/mtools.conf
+fdimage288: $(imgdeps)
$(call cmd,genimage,fdimage288,$(obj)/fdimage)
@$(kecho) 'Kernel: $(obj)/fdimage is ready'
-isoimage: $(obj)/bzImage
+hdimage: $(imgdeps)
+ $(call cmd,genimage,hdimage,$(obj)/hdimage)
+ @$(kecho) 'Kernel: $(obj)/hdimage is ready'
+
+isoimage: $(imgdeps)
$(call cmd,genimage,isoimage,$(obj)/image.iso)
@$(kecho) 'Kernel: $(obj)/image.iso is ready'
-bzlilo:
- 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 $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz
- cp System.map $(INSTALL_PATH)/
- if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
-
install:
- sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
+ $(CONFIG_SHELL) $(srctree)/$(src)/install.sh \
+ $(KERNELRELEASE) $(obj)/bzImage \
System.map "$(INSTALL_PATH)"
-#!/bin/sh
+#!/bin/bash
#
# 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
#
# Adapted from code in arch/x86/boot/Makefile by H. Peter Anvin and others
#
-# "make fdimage/fdimage144/fdimage288/isoimage" script for x86 architecture
+# "make fdimage/fdimage144/fdimage288/hdimage/isoimage"
+# script for x86 architecture
#
# Arguments:
-# $1 - fdimage format
-# $2 - target image file
-# $3 - kernel bzImage file
-# $4 - mtool configuration file
-# $5 - kernel cmdline
-# $6 - inird image file
+# $1 - fdimage format
+# $2 - target image file
+# $3 - kernel bzImage file
+# $4 - mtools configuration file
+# $5 - kernel cmdline
+# $6+ - initrd image file(s)
+#
+# This script requires:
+# bash
+# syslinux
+# mtools (for fdimage* and hdimage)
+# edk2/OVMF (for hdimage)
+#
+# Otherwise try to stick to POSIX shell commands...
#
# Use "make V=1" to debug this script
;;
esac
-verify () {
- if [ ! -f "$1" ]; then
- echo "" 1>&2
- echo " *** Missing file: $1" 1>&2
- echo "" 1>&2
- exit 1
+# Exit the top-level shell with an error
+topshell=$$
+trap 'exit 1' USR1
+die() {
+ echo "" 1>&2
+ echo " *** $*" 1>&2
+ echo "" 1>&2
+ kill -USR1 $topshell
+}
+
+# Verify the existence and readability of a file
+verify() {
+ if [ ! -f "$1" -o ! -r "$1" ]; then
+ die "Missing file: $1"
fi
}
+diskfmt="$1"
+FIMAGE="$2"
+FBZIMAGE="$3"
+MTOOLSRC="$4"
+KCMDLINE="$5"
+shift 5 # Remaining arguments = initrd files
+
+export MTOOLSRC
-export MTOOLSRC=$4
-FIMAGE=$2
-FBZIMAGE=$3
-KCMDLINE=$5
-FDINITRD=$6
+# common options for dd
+dd='dd iflag=fullblock'
# Make sure the files actually exist
verify "$FBZIMAGE"
-genbzdisk() {
- verify "$MTOOLSRC"
- mformat a:
- syslinux $FIMAGE
- echo "$KCMDLINE" | mcopy - a:syslinux.cfg
- if [ -f "$FDINITRD" ] ; then
- mcopy "$FDINITRD" a:initrd.img
+declare -a FDINITRDS
+irdpfx=' initrd='
+initrdopts_syslinux=''
+initrdopts_efi=''
+for f in "$@"; do
+ if [ -f "$f" -a -r "$f" ]; then
+ FDINITRDS=("${FDINITRDS[@]}" "$f")
+ fname="$(basename "$f")"
+ initrdopts_syslinux="${initrdopts_syslinux}${irdpfx}${fname}"
+ irdpfx=,
+ initrdopts_efi="${initrdopts_efi} initrd=${fname}"
fi
- mcopy $FBZIMAGE a:linux
+done
+
+# Read a $3-byte littleendian unsigned value at offset $2 from file $1
+le() {
+ local n=0
+ local m=1
+ for b in $(od -A n -v -j $2 -N $3 -t u1 "$1"); do
+ n=$((n + b*m))
+ m=$((m * 256))
+ done
+ echo $n
}
-genfdimage144() {
- verify "$MTOOLSRC"
- dd if=/dev/zero of=$FIMAGE bs=1024 count=1440 2> /dev/null
- mformat v:
- syslinux $FIMAGE
- echo "$KCMDLINE" | mcopy - v:syslinux.cfg
- if [ -f "$FDINITRD" ] ; then
- mcopy "$FDINITRD" v:initrd.img
- fi
- mcopy $FBZIMAGE v:linux
+# Get the EFI architecture name such that boot{name}.efi is the default
+# boot file name. Returns false with no output if the file is not an
+# EFI image or otherwise unknown.
+efiarch() {
+ [ -f "$1" ] || return
+ [ $(le "$1" 0 2) -eq 23117 ] || return # MZ magic
+ peoffs=$(le "$1" 60 4) # PE header offset
+ [ $peoffs -ge 64 ] || return
+ [ $(le "$1" $peoffs 4) -eq 17744 ] || return # PE magic
+ case $(le "$1" $((peoffs+4+20)) 2) in # PE type
+ 267) ;; # PE32
+ 523) ;; # PE32+
+ *) return 1 ;; # Invalid
+ esac
+ [ $(le "$1" $((peoffs+4+20+68)) 2) -eq 10 ] || return # EFI app
+ case $(le "$1" $((peoffs+4)) 2) in # Machine type
+ 332) echo i386 ;;
+ 450) echo arm ;;
+ 512) echo ia64 ;;
+ 20530) echo riscv32 ;;
+ 20580) echo riscv64 ;;
+ 20776) echo riscv128 ;;
+ 34404) echo x64 ;;
+ 43620) echo aa64 ;;
+ esac
}
-genfdimage288() {
- verify "$MTOOLSRC"
- dd if=/dev/zero of=$FIMAGE bs=1024 count=2880 2> /dev/null
- mformat w:
- syslinux $FIMAGE
- echo "$KCMDLINE" | mcopy - W:syslinux.cfg
- if [ -f "$FDINITRD" ] ; then
- mcopy "$FDINITRD" w:initrd.img
- fi
- mcopy $FBZIMAGE w:linux
+# Get the combined sizes in bytes of the files given, counting sparse
+# files as full length, and padding each file to a 4K block size
+filesizes() {
+ local t=0
+ local s
+ for s in $(ls -lnL "$@" 2>/dev/null | awk '/^-/{ print $5; }'); do
+ t=$((t + ((s+4095)/4096)*4096))
+ done
+ echo $t
}
-geniso() {
- tmp_dir=`dirname $FIMAGE`/isoimage
- rm -rf $tmp_dir
- mkdir $tmp_dir
- for i in lib lib64 share ; do
- for j in syslinux ISOLINUX ; do
- if [ -f /usr/$i/$j/isolinux.bin ] ; then
- isolinux=/usr/$i/$j/isolinux.bin
- fi
+# Expand directory names which should be in /usr/share into a list
+# of possible alternatives
+sharedirs() {
+ local dir file
+ for dir in /usr/share /usr/lib64 /usr/lib; do
+ for file; do
+ echo "$dir/$file"
+ echo "$dir/${file^^}"
done
- for j in syslinux syslinux/modules/bios ; do
- if [ -f /usr/$i/$j/ldlinux.c32 ]; then
- ldlinux=/usr/$i/$j/ldlinux.c32
- fi
+ done
+}
+efidirs() {
+ local dir file
+ for dir in /usr/share /boot /usr/lib64 /usr/lib; do
+ for file; do
+ echo "$dir/$file"
+ echo "$dir/${file^^}"
done
- if [ -n "$isolinux" -a -n "$ldlinux" ] ; then
- break
+ done
+}
+
+findsyslinux() {
+ local f="$(find -L $(sharedirs syslinux isolinux) \
+ -name "$1" -readable -type f -print -quit 2>/dev/null)"
+ if [ ! -f "$f" ]; then
+ die "Need a $1 file, please install syslinux/isolinux."
+ fi
+ echo "$f"
+ return 0
+}
+
+findovmf() {
+ local arch="$1"
+ shift
+ local -a names=(-false)
+ local name f
+ for name; do
+ names=("${names[@]}" -or -iname "$name")
+ done
+ for f in $(find -L $(efidirs edk2 ovmf) \
+ \( "${names[@]}" \) -readable -type f \
+ -print 2>/dev/null); do
+ if [ "$(efiarch "$f")" = "$arch" ]; then
+ echo "$f"
+ return 0
fi
done
- if [ -z "$isolinux" ] ; then
- echo 'Need an isolinux.bin file, please install syslinux/isolinux.'
- exit 1
+ die "Need a $1 file for $arch, please install EDK2/OVMF."
+}
+
+do_mcopy() {
+ if [ ${#FDINITRDS[@]} -gt 0 ]; then
+ mcopy "${FDINITRDS[@]}" "$1"
+ fi
+ if [ -n "$efishell" ]; then
+ mmd "$1"EFI "$1"EFI/Boot
+ mcopy "$efishell" "$1"EFI/Boot/boot${kefiarch}.efi
fi
- if [ -z "$ldlinux" ] ; then
- echo 'Need an ldlinux.c32 file, please install syslinux/isolinux.'
- exit 1
+ if [ -n "$kefiarch" ]; then
+ echo linux "$KCMDLINE$initrdopts_efi" | \
+ mcopy - "$1"startup.nsh
fi
- cp $isolinux $tmp_dir
- cp $ldlinux $tmp_dir
- cp $FBZIMAGE $tmp_dir/linux
- echo "$KCMDLINE" > $tmp_dir/isolinux.cfg
- if [ -f "$FDINITRD" ] ; then
- cp "$FDINITRD" $tmp_dir/initrd.img
+ echo default linux "$KCMDLINE$initrdopts_syslinux" | \
+ mcopy - "$1"syslinux.cfg
+ mcopy "$FBZIMAGE" "$1"linux
+}
+
+genbzdisk() {
+ verify "$MTOOLSRC"
+ mformat -v 'LINUX_BOOT' a:
+ syslinux "$FIMAGE"
+ do_mcopy a:
+}
+
+genfdimage144() {
+ verify "$MTOOLSRC"
+ $dd if=/dev/zero of="$FIMAGE" bs=1024 count=1440 2>/dev/null
+ mformat -v 'LINUX_BOOT' v:
+ syslinux "$FIMAGE"
+ do_mcopy v:
+}
+
+genfdimage288() {
+ verify "$MTOOLSRC"
+ $dd if=/dev/zero of="$FIMAGE" bs=1024 count=2880 2>/dev/null
+ mformat -v 'LINUX_BOOT' w:
+ syslinux "$FIMAGE"
+ do_mcopy w:
+}
+
+genhdimage() {
+ verify "$MTOOLSRC"
+ mbr="$(findsyslinux mbr.bin)"
+ kefiarch="$(efiarch "$FBZIMAGE")"
+ if [ -n "$kefiarch" ]; then
+ # The efishell provides command line handling
+ efishell="$(findovmf $kefiarch shell.efi shell${kefiarch}.efi)"
+ ptype='-T 0xef' # EFI system partition, no GPT
fi
- genisoimage -J -r -input-charset=utf-8 -quiet -o $FIMAGE \
- -b isolinux.bin -c boot.cat -no-emul-boot -boot-load-size 4 \
- -boot-info-table $tmp_dir
- isohybrid $FIMAGE 2>/dev/null || true
- rm -rf $tmp_dir
+ sizes=$(filesizes "$FBZIMAGE" "${FDINITRDS[@]}" "$efishell")
+ # Allow 1% + 1 MiB for filesystem and partition table overhead,
+ # syslinux, and config files
+ megs=$(((sizes + sizes/100 + 2*1024*1024 - 1)/(1024*1024)))
+ $dd if=/dev/zero of="$FIMAGE" bs=$((1024*1024)) count=$megs 2>/dev/null
+ mpartition -I -c -s 32 -h 64 -t $megs $ptype -b 512 -a h:
+ $dd if="$mbr" of="$FIMAGE" bs=440 count=1 conv=notrunc 2>/dev/null
+ mformat -v 'LINUX_BOOT' -s 32 -h 64 -t $megs h:
+ syslinux --offset $((512*512)) "$FIMAGE"
+ do_mcopy h:
+}
+
+geniso() {
+ tmp_dir="$(dirname "$FIMAGE")/isoimage"
+ rm -rf "$tmp_dir"
+ mkdir "$tmp_dir"
+ isolinux=$(findsyslinux isolinux.bin)
+ ldlinux=$(findsyslinux ldlinux.c32)
+ cp "$isolinux" "$ldlinux" "$tmp_dir"
+ cp "$FBZIMAGE" "$tmp_dir"/linux
+ echo default linux "$KCMDLINE" > "$tmp_dir"/isolinux.cfg
+ cp "${FDINITRDS[@]}" "$tmp_dir"/
+ genisoimage -J -r -appid 'LINUX_BOOT' -input-charset=utf-8 \
+ -quiet -o "$FIMAGE" -b isolinux.bin \
+ -c boot.cat -no-emul-boot -boot-load-size 4 \
+ -boot-info-table "$tmp_dir"
+ isohybrid "$FIMAGE" 2>/dev/null || true
+ rm -rf "$tmp_dir"
}
-case $1 in
+rm -f "$FIMAGE"
+
+case "$diskfmt" in
bzdisk) genbzdisk;;
fdimage144) genfdimage144;;
fdimage288) genfdimage288;;
+ hdimage) genhdimage;;
isoimage) geniso;;
- *) echo 'Unknown image format'; exit 1;
+ *) die "Unknown image format: $diskfmt";;
esac
projects / users / jedix / linux-maple.git / commitdiff