1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
#!/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 192.168.1.1
# netmask 255.255.255.0
# gateway 192.168.1.254
# 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 mipsel 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="yes"
nfsboot="yes"
staticip="yes"
case $arch in
arm)
address="192.168.1.101"
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="192.168.1.102"
macaddr="00:16:3e:00:00:02"
machine="malta"
gdbport="1235"
consoleopt="console=ttyS0"
rootdisk="hda"
qemuopts="-nographic"
kernel="vmlinux"
image="native-sdk-image"
;;
mipsel)
address="192.168.1.103"
macaddr="00:16:3e:00:00:03"
machine="malta"
gdbport="1235"
consoleopt="console=ttyS0"
rootdisk="hda"
qemuopts="-nographic"
kernel="vmlinux"
image="native-sdk-image"
;;
ppc|powerpc)
arch=ppc
address="192.168.1.104"
macaddr="00:16:3e:00:00:04"
machine="g3beige"
gdbport="1236"
mem="1024"
consoleopt="console=ttyS0"
rootdisk="hdc"
qemuopts="-nographic"
kernel="vmlinux"
image="minimalist-image"
;;
sh|sh4)
arch=sh4
address="192.168.1.105"
macaddr="00:16:3e:00:00:05"
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="192.168.1.106"
macaddr="00:16:3e:00:00:06"
gdbport="1237"
machine="pc"
mem="1024"
consoleopt="console=ttyS0"
rootdisk="hda"
qemuopts=""
kernel="bzImage"
image="minimalist-image"
;;
*)
echo "Specify one architectures out of $supported_archs to emulate."
exit 1
;;
esac
nfsserver="192.168.1.1" # address of NFS server
gateway="192.168.1.254" # default gateway
netmask="255.255.255.0" # subnet mask
hostname="qemu$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 -S" # debug the kernel using gdb
# 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
if [ $nfsboot != "yes" ]; then
qemuopts="$qemuopts -drive file=$hdimage"
fi
echo "Starting QEMU ..."
set -x
$qemu -M $machine --snapshot $gdbit -m $mem \
-kernel $kernelimage \
-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
|
