#!/bin/bash # # Handle running OE images standalone with QEMU # # Copyright (C) 2006-2011 Linux Foundation # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License version 2 as # published by the Free Software Foundation. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License along # with this program; if not, write to the Free Software Foundation, Inc., # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. usage() { MYNAME=`basename $0` echo "" echo "Usage: you can run this script with any valid combination" echo "of the following options (in any order):" echo " QEMUARCH - the qemu machine architecture to use" echo " KERNEL - the kernel image file to use" echo " ROOTFS - the rootfs image file or nfsroot directory to use" echo " MACHINE=xyz - the machine name (optional, autodetected from KERNEL filename if unspecified)" echo " Additional QEMU command-line options can be passed with:" echo " nographic - disables video console" echo " serial - enables a serial console on /dev/ttyS0" echo " kvm - enables KVM when running qemux86/qemux86-64, VT capable CPU required" echo " \"<extra-qemu-options>\" - enables extra qemu options, excluding serial and kvm" echo "" echo "Examples:" echo " $MYNAME qemuarm" echo " $MYNAME qemux86-64 core-image-sato ext3" echo " $MYNAME path/to/bzImage-qemux86.bin path/to/nfsrootdir/ serial" echo " $MYNAME qemux86 \"<-m 256>\"" exit 1 } if [ "x$1" = "x" ]; then usage fi MACHINE=${MACHINE:=""} KERNEL="" FSTYPE="" ROOTFS="" LAZY_ROOTFS="" SCRIPT_QEMU_OPT="" SCRIPT_QEMU_EXTRA_OPT="" SCRIPT_KERNEL_OPT="" TMPDIR="" # Determine whether the file is a kernel or QEMU image, and set the # appropriate variables process_filename() { filename=$1 # Extract the filename extension EXT=`echo $filename | awk -F . '{ print \$NF }'` # A file ending in .bin is a kernel if [ "x$EXT" = "xbin" ]; then if [ -z "$KERNEL" ]; then KERNEL=$filename else echo "Error: conflicting KERNEL args [$KERNEL] and [$filename]" usage fi elif [[ "x$EXT" == "xext2" || "x$EXT" == "xext3" || "x$EXT" == "xjffs2" ]]; then # A file ending in a supportted fs type is a rootfs image if [[ -z "$FSTYPE" || "$FSTYPE" == "$EXT" ]]; then FSTYPE=$EXT ROOTFS=$filename else echo "Error: conflicting FSTYPE types [$FSTYPE] and [$EXT]" usage fi else echo "Error: unknown file arg [$filename]" usage fi } # Parse command line args without requiring specific ordering. It's a # bit more complex, but offers a great user experience. KVM_ENABLED="no" i=1 while [ $i -le $# ]; do arg=${!i} case $arg in "qemux86" | "qemux86-64" | "qemuarm" | "qemumips" | "qemuppc") if [ -z "$MACHINE" ]; then MACHINE=$arg else echo "Error: conflicting MACHINE types [$MACHINE] and [$arg]" usage fi ;; "ext2" | "ext3" | "jffs2" | "nfs") if [[ -z "$FSTYPE" || "$FSTYPE" == "$arg" ]]; then FSTYPE=$arg else echo "Error: conflicting FSTYPE types [$FSTYPE] and [$arg]" usage fi ;; *-image-*) if [ -z "$ROOTFS" ]; then if [ -f "$arg" ]; then process_filename $arg elif [ -d "$arg" ]; then # Handle the case where the nfsroot dir has -image- # in the pathname echo "Assuming $arg is an nfs rootfs" FSTYPE=nfs ROOTFS=$arg else ROOTFS=$arg LAZY_ROOTFS="true" fi else echo "Error: conflicting ROOTFS args [$ROOTFS] and [$arg]" usage fi ;; "nographic") SCRIPT_QEMU_OPT="$SCRIPT_QEMU_OPT -nographic" ;; "serial") SCRIPT_QEMU_OPT="$SCRIPT_QEMU_OPT -serial stdio" SCRIPT_KERNEL_OPT="$SCRIPT_KERNEL_OPT console=ttyS0" ;; "audio") if [[ "x$MACHINE" == "xqemux86" || "x$MACHINE" == "xqemux86-64" ]]; then echo "Enable audio on qemu. Pls. install snd_intel8x0 or snd_ens1370 driver in linux guest."; QEMU_AUDIO_DRV="alsa" SCRIPT_QEMU_OPT="$SCRIPT_QEMU_OPT -soundhw ac97,es1370" fi ;; "kvm") KVM_ENABLED="yes" KVM_CAPABLE=`grep 'vmx\|smx' /proc/cpuinfo` ;; \<*\>) SCRIPT_QEMU_EXTRA_OPT=$arg serial_option=`expr "$SCRIPT_QEMU_EXTRA_OPT" : '.*\(-serial\)'` kvm_option=`expr "$SCRIPT_QEMU_EXTRA_OPT" : '.*\(-enable-kvm\)'` echo "$kvm_option" if [[ ! -z "$serial_option" || ! -z "$kvm_option" ]]; then echo "Error: Please use serial or kvm params instead!" usage fi ;; *) # A directory name is an nfs rootfs if [ -d "$arg" ]; then echo "Assuming $arg is an nfs rootfs" if [[ -z "$FSTYPE" || "$FSTYPE" == "nfs" ]]; then FSTYPE=nfs else echo "Error: conflicting FSTYPE types [$arg] and nfs" usage fi if [ -z "$ROOTFS" ]; then ROOTFS=$arg else echo "Error: conflicting ROOTFS args [$ROOTFS] and [$arg]" usage fi elif [ -f "$arg" ]; then process_filename $arg else echo "Error: unable to classify arg [$arg]" usage fi ;; esac i=$((i + 1)) done YOCTO_KVM_WIKI="https://wiki.yoctoproject.org/wiki/How_to_enable_KVM_for_Poky_qemu" # Detect KVM configuration if [[ "x$KVM_ENABLED" == "xyes" ]]; then if [[ -z "$KVM_CAPABLE" ]]; then echo "You are tring to enable KVM on cpu without VT support. Remove kvm from the command-line, or refer"; echo "$YOCTO_KVM_WIKI"; exit 1; fi if [[ "x$MACHINE" != "xqemux86" && "x$MACHINE" != "xqemux86-64" ]]; then echo "KVM only support x86 & x86-64. Remove kvm from the command-line"; exit 1; fi if [ ! -e /dev/kvm ]; then echo "Missing KVM device. Have you inserted kvm modules? Pls. refer"; echo "$YOCTO_KVM_WIKI"; exit 1; fi if 9<>/dev/kvm ; then SCRIPT_QEMU_OPT="$SCRIPT_QEMU_OPT -enable-kvm" else echo "You have no rights on /dev/kvm. Pls. change the owndership as described at"; echo "$YOCTO_KVM_WIKI"; exit 1; fi fi # Report errors for missing combinations of options if [[ -z "$MACHINE" && -z "$KERNEL" ]]; then echo "Error: you must specify at least a MACHINE or KERNEL argument" usage fi if [[ "$FSTYPE" == "nfs" && -z "$ROOTFS" ]]; then echo "Error: NFS booting without an explicit ROOTFS path is not yet supported" usage fi if [ -z "$MACHINE" ]; then MACHINE=`basename $KERNEL | sed 's/.*-\(qemux86-64\|qemux86\|qemuarm\|qemumips\|qemuppc\).*/\1/'` if [ -z "$MACHINE" ]; then echo "Error: Unable to set MACHINE from kernel filename [$KERNEL]" usage fi echo "Set MACHINE to [$MACHINE] based on kernel [$KERNEL]" fi machine2=`echo $MACHINE | tr 'a-z' 'A-Z' | sed 's/-/_/'` # MACHINE is now set for all cases # Defaults used when these vars need to be inferred QEMUX86_DEFAULT_KERNEL=bzImage-qemux86.bin QEMUX86_DEFAULT_FSTYPE=ext3 QEMUX86_DEFAULT_ROOTFS="core-image-sato-sdk core-image-sato core-image-lsb core-image-basic core-image-minimal" QEMUX86_64_DEFAULT_KERNEL=bzImage-qemux86-64.bin QEMUX86_64_DEFAULT_FSTYPE=ext3 QEMUX86_64_DEFAULT_ROOTFS="core-image-sato-sdk core-image-sato core-image-lsb core-image-basic core-image-minimal" QEMUARM_DEFAULT_KERNEL=zImage-qemuarm.bin QEMUARM_DEFAULT_FSTYPE=ext3 QEMUARM_DEFAULT_ROOTFS="core-image-sato-sdk core-image-sato core-image-lsb core-image-basic core-image-minimal" QEMUMIPS_DEFAULT_KERNEL=vmlinux-qemumips.bin QEMUMIPS_DEFAULT_FSTYPE=ext3 QEMUMIPS_DEFAULT_ROOTFS="core-image-sato-sdk core-image-sato core-image-lsb core-image-basic core-image-minimal" QEMUPPC_DEFAULT_KERNEL=zImage-qemuppc.bin QEMUPPC_DEFAULT_FSTYPE=ext3 QEMUPPC_DEFAULT_ROOTFS="core-image-sato-sdk core-image-sato core-image-lsb core-image-basic core-image-minimal" AKITA_DEFAULT_KERNEL=zImage-akita.bin AKITA_DEFAULT_FSTYPE=jffs2 AKITA_DEFAULT_ROOTFS="core-image-sato" SPITZ_DEFAULT_KERNEL=zImage-spitz.bin SPITZ_DEFAULT_FSTYPE=ext3 SPITZ_DEFAULT_ROOTFS="core-image-sato" setup_tmpdir() { if [ -z "$TMPDIR" ]; then if [ "x$BUILDDIR" = "x" -o ! -d "$BUILDDIR/tmp" ]; then # BUILDDIR unset, try and get TMPDIR from bitbake type -P bitbake &>/dev/null || { echo "In order for this script to dynamically infer paths"; echo "to kernels or filesystem images, you either need"; echo "bitbake in your PATH or to source oe-init-build-env"; echo "before running this script" >&2; exit 1; } # We have bitbake in PATH, get TMPDIR from bitbake TMPDIR=`bitbake -e | grep TMPDIR=\" | cut -d '=' -f2 | cut -d '"' -f2` else TMPDIR=$BUILDDIR/tmp fi fi } setup_sysroot() { # Toolchain installs set up $OECORE_NATIVE_SYSROOT in their # environment script. If that variable isn't set, we're # either in an in-tree build scenario or the environment # script wasn't source'd. if [ -z "$OECORE_NATIVE_SYSROOT" ]; then setup_tmpdir BUILD_ARCH=`uname -m` BUILD_OS=`uname | tr '[A-Z]' '[a-z]'` BUILD_SYS="$BUILD_ARCH-$BUILD_OS" OECORE_NATIVE_SYSROOT=$TMPDIR/sysroots/$BUILD_SYS fi } # Locate a rootfs image based on defaults defined above findimage() { where=$1 machine=$2 extension=$3 names=$4 for name in $names; do fullname=$where/$name-$machine.$extension if [ -e "$fullname" ]; then ROOTFS=$fullname return fi done echo "Couldn't find image in $where. Attempted image names were:" for name in $names; do echo $name-$machine.$extension done exit 1 } if [[ -e "$ROOTFS" && -z "$FSTYPE" ]]; then # Extract the filename extension EXT=`echo $ROOTFS | awk -F . '{ print \$NF }'` if [[ "x$EXT" == "xext2" || "x$EXT" == "xext3" || "x$EXT" == "xjffs2" ]]; then FSTYPE=$EXT else echo "Note: Unable to determine filesystem extension for $ROOTFS" echo "We will use the default FSTYPE for $MACHINE" # ...which is done further below... fi fi if [ -z "$KERNEL" ]; then setup_tmpdir eval kernel_file=\$${machine2}_DEFAULT_KERNEL KERNEL=$TMPDIR/deploy/images/$kernel_file if [ -z "$KERNEL" ]; then echo "Error: Unable to determine default kernel for MACHINE [$MACHINE]" usage fi fi # KERNEL is now set for all cases if [ -z "$FSTYPE" ]; then eval FSTYPE=\$${machine2}_DEFAULT_FSTYPE if [ -z "$FSTYPE" ]; then echo "Error: Unable to determine default fstype for MACHINE [$MACHINE]" usage fi fi # FSTYPE is now set for all cases # Handle cases where a ROOTFS type is given instead of a filename, e.g. # core-image-sato if [ "$LAZY_ROOTFS" = "true" ]; then setup_tmpdir echo "Assuming $ROOTFS really means $TMPDIR/deploy/images/$ROOTFS-$MACHINE.$FSTYPE" ROOTFS=$TMPDIR/deploy/images/$ROOTFS-$MACHINE.$FSTYPE fi if [ -z "$ROOTFS" ]; then setup_tmpdir T=$TMPDIR/deploy/images eval rootfs_list=\$${machine2}_DEFAULT_ROOTFS findimage $T $MACHINE $FSTYPE "$rootfs_list" if [ -z "$ROOTFS" ]; then echo "Error: Unable to determine default rootfs for MACHINE [$MACHINE]" usage fi fi # ROOTFS is now set for all cases echo "" echo "Continuing with the following parameters:" echo "KERNEL: [$KERNEL]" echo "ROOTFS: [$ROOTFS]" echo "FSTYPE: [$FSTYPE]" setup_sysroot # OECORE_NATIVE_SYSROOT is now set for all cases # We can't run without a libGL.so libgl='no' test -e /usr/lib/libGL.so -a -e /usr/lib/libGLU.so && libgl='yes' test -e /usr/lib64/libGL.so -a -e /usr/lib64/libGLU.so && libgl='yes' if [ "$libgl" != 'yes' ]; then echo "You need libGL.so and libGLU.so to exist in your library path to run the QEMU emulator. Ubuntu package names are: libgl1-mesa-dev and libglu1-mesa-dev." exit 1; fi INTERNAL_SCRIPT=`which runqemu-internal` . $INTERNAL_SCRIPT