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#!/bin/bash
#
# This script is aimed at generating the headers from the kernel sources.
# Please do a git checkout of the kernel sources, or run until %prep step of
# kernel rpm build. Then go into the directory with the sources, and run this
# script
#
# Author: Herton R. Krzesinski <herton@redhat.com>
# ARCH_LIST below has the default list of supported architectures
# (the architectures names may be different from rpm, you list here the
# names of arch/<arch> directories in the kernel sources)
ARCH_LIST="arm arm64 powerpc s390 x86"
# If the kernel Makefile doesn't contain enough information for the tarball
# release, you can specify the release of the package so it'll be included
# in the name of the created tarball
TB_RELEASE=""
# If kernel Makefile has the package release number, you can specify the name of
# Makefile variable here.
MAKE_RELEASE=""
# Extra string (usually dist tag) that goes into the tarball name
EXTRA=""
while [ ! -z "$1" ]; do
opt="$1"
case $opt in
--arch-list|-a)
ARCH_LIST="$2"
shift
;;
--extra|-e)
EXTRA="$2"
shift
;;
--make-release|-m)
MAKE_RELEASE=$2
shift
;;
--release|-r)
TB_RELEASE=$2
shift
;;
*)
echo "Unknown option ($1) to $0"
exit
;;
esac
shift
done
KVERSION=$(cat Makefile | sed -ne '/^VERSION\ =\ /{s///;p;q}')
KPATCHLEVEL=$(cat Makefile | sed -ne '/^PATCHLEVEL\ =\ /{s///;p;q}')
KSUBLEVEL=$(cat Makefile | sed -ne '/^SUBLEVEL\ =\ /{s///;p;q}')
TB_VERSION=$KVERSION.$KPATCHLEVEL.$KSUBLEVEL
if [ -z "$TB_RELEASE" ]; then
KEXTRAVERSION=$(cat Makefile | sed -ne '/^EXTRAVERSION\ =\ /{s///;p;q}')
DISTRO_RELEASE=""
if [ -n "$MAKE_RELEASE" ]; then
DISTRO_RELEASE=.$(cat Makefile | sed -ne "/^$MAKE_RELEASE\ =\ /{s///;p;q}")
fi
if [ -n "$KEXTRAVERSION" ]; then
KEXTRAVERSION=$(echo $KEXTRAVERSION | sed -e s/-/./)
TB_RELEASE=0$KEXTRAVERSION$DISTRO_RELEASE$EXTRA
else
TB_RELEASE=$DISTRO_RELEASE$EXTRA
fi
fi
headers_dir=$(mktemp -d)
trap 'rm -rf "$headers_dir"' SIGHUP SIGINT SIGTERM EXIT
make HDR_ARCH_LIST="$ARCH_LIST" INSTALL_HDR_PATH=$headers_dir headers_install_all
find $headers_dir \
\( -name .install -o -name .check -o \
-name ..install.cmd -o -name ..check.cmd \) | xargs rm -f
TARBALL=$PWD/kernel-headers-$TB_VERSION-$TB_RELEASE.tar.xz
pushd $headers_dir
tar -Jcf $TARBALL *
popd
echo wrote $TARBALL
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