#!/bin/sh
# Start up an mld system on a ARM system under QEMU

color_black="\\033[1;38m"
color_reset="\\033[0;39m"
color_red="\\033[1;31m"

help()
{
	echo "Usage: $0 [MLD_ARCHIVE]"
	echo "       [MLD_ARCHIVE]  Create MLD image from the given MLD archive file"
}

if [ "$1" = "-h" -o "$1" = "--help" ]; then
	help
	exit
fi

if ! qemu --version > /dev/null; then
	echo "${color_red}QEMU not installed${color_reset}"
	exit 1
fi

cpu=$(qemu-system-arm -M versatilepb -cpu ? | grep arm1176  || qemu-system-arm -M versatilepb -cpu ? | grep arm1136-r2)
archive=${1}

if [ -n "$archive" ]; then
	echo "${color_black}Create MLD image${color_reset}"
	mkdir mld
	qemu-img create -f raw mld.img 100M
	mkfs.vfat mld.img
	sudo mount mld.img mld -o loop,uid=$(id -u),gid=$(id -g)
	tar -xzf $archive -C mld
	cp mld/kernel.img kernel
	cp mld/boot/initramfs .
	sudo umount mld
	rmdir mld
	echo
fi

if [ ! -e mld.img ]; then
	echo "${color_red}No MLD image exists${color_reset}"
	help
	exit 2
fi

echo -n $color_black
cat <<-EOF
	Start MLD for ARM processors on QEMU
	====================================
EOF
echo -n $color_reset
echo "CPU: $cpu"

qemu-system-arm -m 256 -M versatilepb -cpu $cpu -ctrl-grab -hda mld.img -kernel kernel -initrd initramfs -append "panic=5 QUIET=1 quiet splash=silent" -daemonize -usbdevice tablet #-vnc :0
#sudo qemu-system-arm -m 256 -M versatilepb -cpu $cpu -ctrl-grab -hda mld.img -kernel kernel -initrd initramfs -append "panic=5 QUIET=1 quiet splash=silent" -net tap -net nic,macaddr=52:54:00:12:34:58 -daemonize -usbdevice tablet #-vnc :0