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|
#!/bin/sh
# set -x
# This script helps in launching QEMU to emulate OE based target systems
# It accepts 2 arguments
# First argument is the target architectures
# second argument is empty if you want to do a complete init or
# 'single' if booting into /bin/sh
# It assumes that bridge is setup on the eth0 device on the host systems
# on debian-like systems
# set up bridge aptitude install bridge-utils
#
# change /etc/network/interfaces to something like below and restart
# network
#auto lo
#iface lo inet loopback
#
#auto br0
#iface br0 inet static
# address 10.0.1.37
# netmask 255.255.0.0
# gateway 10.0.0.1
# bridge_ports eth0
# bridge_maxwait 0
# bridge_fd 9
# bridge_stp off
#
#iface eth0 inet ipv4ll
#
#auto eth0
# before using this script make sure that the following variables are set
# as per your build system environment
# oetmpdir - Same as $TMPDIR set in OE local.conf
# oesrcdir - Absolute path to OE metadata
# kernel - Kernel image e.g. uImage, zImage, vmlinux etc.
# image - The root file system created by OE console-image, x11-image etc.
# imagetype - Image file system type e.g. ext2, ext3 etc.
# libc - uclibc/glibc/eglibc
# server - NFS server hosting the root file system.
# gateway
# netmask
# address - IP Address of the target. You may have diffrent LAN setup
# hostname - Name of the target
# nfsdir - Absolute path to directory having the root file system on NFS
# device
# nfsboot - 'yes' if root file system is to be mounted over NFS, if booting from
# disk image then set it to 'no'
# networking - If target should enable networking over bridge set to 'yes' else 'no'
# This will be set to 'yes' automatically if nfsboot is enabled
# staticip - Set to 'yes' if IP address is assigned statically or 'no' if getting
# from dhcp server. Note that this option is not entertained if networking
# is disabled
supported_archs="{arm mips ppc sh4 x86}"
if [ $# -lt 2 ]; then
echo -en "
Usage: `basename $0` <arch> <libc>
where <arch> is one $supported_archs
libc is uclibc glibc or eglibc
Example: `basename $0` arm eglibc
"
exit 0
fi
arch=$1
libc=$2
mem=256 # memory for guest server in Mb
imagetype="ext2"
networking="no"
nfsboot="no"
staticip="yes"
case $arch in
arm)
address="10.0.1.101"
macaddr="00:16:3e:00:00:01"
machine="versatilepb"
gdbport="1234"
consoleopt="console=ttyAMA0 console=ttyS0"
rootdisk="sda"
qemuopts="-nographic"
kernel="zImage"
image="native-sdk-image"
;;
mips)
address="10.0.1.102"
macaddr="00:16:3e:00:00:02"
machine="malta"
gdbport="1235"
consoleopt="console=ttyS0"
rootdisk="hda"
qemuopts="-nographic"
kernel="vmlinux"
image="minimalist-image"
;;
ppc|powerpc)
arch=ppc
address="10.0.1.103"
macaddr="00:16:3e:00:00:03"
machine="g3beige"
gdbport="1236"
consoleopt="console=ttyS0"
rootdisk="hdc"
qemuopts="-nographic"
kernel="vmlinux"
image="minimalist-image"
;;
sh|sh4)
arch=sh4
address="10.0.1.104"
macaddr="00:16:3e:00:00:04"
machine="r2d"
gdbport="1237"
mem="512"
consoleopt="console=ttySC1 noiotrap earlyprintk=sh-sci.1"
rootdisk="sda"
qemuopts="-monitor null -serial vc -serial stdio"
kernel="zImage"
image="minimalist-image"
;;
x86)
address="10.0.1.105"
macaddr="00:16:3e:00:00:05"
gdbport="1237"
machine="pc"
consoleopt="console=ttyS0"
rootdisk="hda"
qemuopts="-nographic"
kernel="bzImage"
image="minimalist-image"
;;
*)
echo "Specify one architectures out of $supported_archs to emulate."
exit 1
;;
esac
nfsserver="10.0.1.37" # address of NFS server
gateway="10.0.0.1" # default gateway
netmask="255.255.0.0" # subnet mask
hostname="qemu$arch" # hostname for guest server
nfsdir="/opt/oe/$hostname" # nfs directory where root file system is
device="eth0" # interface that guest server will use
gdbit="-redir tcp:2222::22 -gdb tcp::$gdbport" # debug the kernel using gdb set it to -s
# add -S to stop after launch and wait for
# gdb to connect
oetmpdir=/scratch/oe
oesrcdir=$HOME/work/oe/openembedded
nfsopts="rsize=8192,wsize=8192,hard,intr,tcp,nolock" # nfs options
if [ $nfsboot = "yes" ]; then
# for NFS root
rootfs="root=/dev/nfs rw nfsroot=$nfsserver:$nfsdir,$nfsopts"
# without networking nfsroot wouldnt be possible so enable it explicitly.
networking="yes"
else
# Boot from a Disk Image
rootfs="root=/dev/$rootdisk rw"
fi
if [ $networking != "yes" ]; then
ipopt=""
else
if [ $staticip = "yes" ]; then
# ip format
#ip=<client-ip>:<server-ip>:<gw-ip>:<netmask>:<hostname>:<device>:<autoconf>
ipopt="ip=$address::$gateway:$netmask:$hostname:$device:off"
else
# get IP from DHCP server on network
ipopt="ip=dhcp"
fi
fi
qemuifup="$oesrcdir/contrib/qemu/qemu-ifup"
qemuifdown="$oesrcdir/contrib/qemu/qemu-ifdown"
if [ $networking = "yes" ]; then
uid=`whoami`
iface=`sudo tunctl -b -u $uid`
netopt="-net nic,vlan=0,macaddr=$macaddr -net tap,vlan=0,ifname=$iface,script=$qemuifup,downscript=$qemuifdown"
else
netopt="-net none"
fi
if [ "x$3" == "xsingle" ]; then
init="init=/bin/sh"
else
init=""
fi
qemupath="$oetmpdir/sysroots/`uname -m`-linux/usr/bin"
if [ $arch = "x86" ]; then
qemu=$qemupath/qemu
else
qemu=$qemupath/qemu-system-$arch
fi
kernelimage=$oetmpdir/deploy/$libc/images/qemu$arch/$kernel-qemu$arch.bin
hdimage=$oetmpdir/deploy/$libc/images/qemu$arch/$image-qemu$arch.$imagetype
echo "Starting QEMU ..."
set -x
$qemu -M $machine --snapshot $gdbit -m $mem \
-kernel $kernelimage -drive file=$hdimage \
-usb -usbdevice wacom-tablet --no-reboot -localtime \
$qemuopts \
-append "$consoleopt $rootfs $ipopt $init debug user_debug=-1" \
$netopt
set +x
if [ $networking = "yes" ]; then
#destroy the tap interface
sudo tunctl -b -d $iface
fi
stty sane
|
