poky/scripts/poky-qemu

#!/bin/bash

Handle running Poky images standalone with QEMU

Copyright (C) 2006-2010 Intel Corp.

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 "" echo "Examples:" echo " $0 qemuarm" echo " $0 qemux86-64 poky-image-sato ext3" echo " $0 path/to/bzImage-qemux86.bin path/to/nfsrootdir/ serial" exit 1 }

if [ "x$1" = "x" ]; then usage fi

MACHINE=${MACHINE:=""} KERNEL="" FSTYPE="" ROOTFS="" LAZY_ROOTFS="" SCRIPT_QEMU_OPT="" SCRIPT_KERNEL_OPT=""

TMPDIR=""

Parse command line args without requiring specific ordering. It's a

bit more complex, but offers a great user experience.

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" ]; then FSTYPE=$arg else echo "Error: conflicting FSTYPE types [$FSTYPE] and [$arg]" usage fi ;; -image-) if [ -z "$ROOTFS" ]; then if [ -e "$arg" ]; then ROOTFS=$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" ;; *) # A directory name is an nfs rootfs if [ -d "$arg" ]; then echo "Assuming $arg is an nfs rootfs" if -z "$FSTYPE" ; 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
            # Extract the filename extension
            EXT=`echo $arg | awk -F . '{ print \$NF }'`
            # A file ending in .bin is a kernel
            if [ "x$EXT" = "xbin" ]; then
                if [ -z "$KERNEL" ]; then
                    KERNEL=$arg
                else
                    echo "Error: conflicting KERNEL args [$KERNEL] and [$arg]"
                    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=$EXT
                     ROOTFS=$arg
                 else
                     echo "Error: conflicting FSTYPE types [$FSTYPE] and [$arg]"
                     usage
                 fi
            else
                echo "Error: unknown file arg [$arg]"
                usage
            fi
        else
            echo "Error: unable to classify arg [$arg]"
            usage
        fi
        ;;
esac
i=$((i + 1))

done

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 ; then echo "Error: NFS booting without an explicit ROOTFS path is not yet supported" usage fi

if [ -z "$MACHINE" ]; then MACHINE=basename $KERNEL | sed -r -e 's#.*-([a-z]+[0-9\-]*)-?[0-9]*..*#\1#' if [ -z "$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="poky-image-sdk poky-image-sato poky-image-lsb poky-image-basic poky-image-minimal"

QEMUX86_64_DEFAULT_KERNEL=bzImage-qemux86-64.bin QEMUX86_64_DEFAULT_FSTYPE=ext3 QEMUX86_64_DEFAULT_ROOTFS="poky-image-sdk poky-image-sato poky-image-lsb poky-image-basic poky-image-minimal"

QEMUARM_DEFAULT_KERNEL=zImage-qemuarm.bin QEMUARM_DEFAULT_FSTYPE=ext3 QEMUARM_DEFAULT_ROOTFS="poky-image-sdk poky-image-sato poky-image-lsb poky-image-basic poky-image-minimal"

QEMUMIPS_DEFAULT_KERNEL=vmlinux-qemumips.bin QEMUMIPS_DEFAULT_FSTYPE=ext3 QEMUMIPS_DEFAULT_ROOTFS="poky-image-sdk poky-image-sato poky-image-lsb poky-image-basic poky-image-minimal"

QEMUPPC_DEFAULT_KERNEL=zImage-qemuppc.bin QEMUPPC_DEFAULT_FSTYPE=ext3 QEMUPPC_DEFAULT_ROOTFS="poky-image-sdk poky-image-sato poky-image-lsb poky-image-basic poky-image-minimal"

AKITA_DEFAULT_KERNEL=zImage-akita.bin AKITA_DEFAULT_FSTYPE=jffs2 AKITA_DEFAULT_ROOTFS="poky-image-sato"

SPITZ_DEFAULT_KERNEL=zImage-spitz.bin SPITZ_DEFAULT_FSTYPE=ext3 SPITZ_DEFAULT_ROOTFS="poky-image-sato"

setup_tmpdir() { if [ -z "$TMPDIR" ]; then if [ "x$BUILDDIR" = "x" ]; 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 poky-init-build-env"; echo "before running this script" >&2; exit 1; }

        # We have bitbake in PATH, get TMPDIR and BUILD_SYS
        # from the environment
        TMPDIR=`bitbake -e | grep TMPDIR=\" | cut -d '=' -f2 | cut -d '"' -f2`
        BUILD_SYS=`bitbake -e | grep BUILD_SYS=\" | cut -d '=' -f2 | cut -d '"' -f2`
    else
        BUILD_ARCH=`uname -m`
        BUILD_OS=`uname | tr '[A-Z]' '[a-z]'`
        BUILD_SYS="$BUILD_ARCH-$BUILD_OS"
        TMPDIR=$BUILDDIR/tmp
    fi
    if [ -z "$POKY_NATIVE_SYSROOT" ]; then
        POKY_NATIVE_SYSROOT=$TMPDIR/sysroots/$BUILD_SYS
    fi
    CROSSPATH=$POKY_NATIVE_SYSROOT/usr/bin
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 setup_tmpdir

# 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 setup_tmpdir 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.

poky-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]"

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 poky-qemu-internal

. $INTERNAL_SCRIPT