#!/bin/bash

if [ ! -f config.mak ]; then
	echo run ./configure first. See ./configure -h
	exit 2
fi
source config.mak

qemu="${QEMU:-qemu-system-arm}"
qpath=$(which $qemu 2>/dev/null)

if [ -z "$qpath" ]; then
	echo $qemu not found.
	exit 2
fi

if ! $qemu -machine '?' 2>&1 | grep 'ARM Virtual Machine' > /dev/null; then
	echo "$qpath doesn't support mach-virt ('-machine virt'). Exiting."
	exit 2
fi

M='-machine virt'

if ! $qemu $M -device '?' 2>&1 | grep virtconsole > /dev/null; then
	echo "$qpath doesn't support virtio-console for chr-testdev. Exiting."
	exit 2
fi

if $qemu $M -chardev testdev,id=id -kernel . 2>&1 \
		| grep backend > /dev/null; then
	echo "$qpath doesn't support chr-testdev. Exiting."
	exit 2
fi

M='-machine virt,accel=kvm:tcg'
chr_testdev='-device virtio-serial-device'
chr_testdev+=' -device virtconsole,chardev=ctd -chardev testdev,id=ctd'

command="$qemu $M -cpu $PROCESSOR $chr_testdev"
command+=" -display none -serial stdio -kernel"

echo $command "$@"
$command "$@"
ret=$?
echo Return value from qemu: $ret
exit $ret