Commit 87fdd476 authored by Jan Kiszka's avatar Jan Kiszka Committed by Marcelo Tosatti
Browse files

Add kernel header update script 



This helper pulls the required kernel headers for KVM and vhost into a
specified directory. The update is triggered via

    scripts/update-linux-headers.sh LINUX_PATH

and will place the output under linux-headers/linux and linux-headers/asm-*.
It also imports the COPYING to care for headers without an explicit license.

CC: Alexander Graf <agraf@suse.de>
CC: Christoph Hellwig <hch@lst.de>
CC: Peter Maydell <peter.maydell@linaro.org>
CC: Andreas Färber <andreas.faerber@web.de>
Signed-off-by: default avatarJan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: default avatarPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
parent 42cc8fa6

linux-headers/README

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Automatically imported Linux kernel headers.

Only use scripts/update-linux-headers.sh to update!

scripts/update-linux-headers.sh

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#!/bin/sh -e

#

# Update Linux kernel headers QEMU requires from a specified kernel tree.

#

# Copyright (C) 2011 Siemens AG

#

# Authors:

#  Jan Kiszka        <jan.kiszka@siemens.com>

#

# This work is licensed under the terms of the GNU GPL version 2.

# See the COPYING file in the top-level directory.



tmpdir=`mktemp -d`

linux="$1"

output="$2"



if [ -z "$linux" ] || ! [ -d "$linux" ]; then

    cat << EOF

usage: update-kernel-headers.sh LINUX_PATH [OUTPUT_PATH]



LINUX_PATH      Linux kernel directory to obtain the headers from

OUTPUT_PATH     output directory, usually the qemu source tree (default: $PWD)

EOF

    exit 1

fi



if [ -z "$output" ]; then

    output="$PWD"

fi



for arch in x86 powerpc s390; do

    make -C "$linux" INSTALL_HDR_PATH="$tmpdir" SRCARCH=$arch headers_install



    rm -rf "$output/linux-headers/asm-$arch"

    mkdir -p "$output/linux-headers/asm-$arch"

    for header in kvm.h kvm_para.h; do

        cp "$tmpdir/include/asm/$header" "$output/linux-headers/asm-$arch"

    done

    if [ $arch = x86 ]; then

        cp "$tmpdir/include/asm/hyperv.h" "$output/linux-headers/asm-x86"

    fi

done



rm -rf "$output/linux-headers/linux"

mkdir -p "$output/linux-headers/linux"

for header in kvm.h kvm_para.h vhost.h virtio_config.h virtio_ring.h; do

    cp "$tmpdir/include/linux/$header" "$output/linux-headers/linux"

done

if [ -L "$linux/source" ]; then

    cp "$linux/source/COPYING" "$output/linux-headers"

else

    cp "$linux/COPYING" "$output/linux-headers"

fi



rm -rf "$tmpdir"