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#!/bin/sh # # Copyright 2003 Wichert Akkerman <wichert@wiggy.net> # # Simple script to generate a debian/ directory for a Linux kernel. set -e is_enabled() { grep -q "^$1=y" include/config/auto.conf } if_enabled_echo() { if is_enabled "$1"; then echo -n "$2" elif [ $# -ge 3 ]; then echo -n "$3" fi } set_debarch() { if [ -n "$KBUILD_DEBARCH" ] ; then debarch="$KBUILD_DEBARCH" return fi # Attempt to find the correct Debian architecture case "$UTS_MACHINE" in i386|ia64|alpha|m68k|riscv*) debarch="$UTS_MACHINE" ;; x86_64) debarch=amd64 ;; sparc*) debarch=sparc$(if_enabled_echo CONFIG_64BIT 64) ;; s390*) debarch=s390x ;; ppc*) if is_enabled CONFIG_64BIT; then debarch=ppc64$(if_enabled_echo CONFIG_CPU_LITTLE_ENDIAN el) else debarch=powerpc$(if_enabled_echo CONFIG_SPE spe) fi ;; parisc*) debarch=hppa ;; mips*) if is_enabled CONFIG_CPU_LITTLE_ENDIAN; then debarch=mips$(if_enabled_echo CONFIG_64BIT 64)$(if_enabled_echo CONFIG_CPU_MIPSR6 r6)el elif is_enabled CONFIG_CPU_MIPSR6; then debarch=mips$(if_enabled_echo CONFIG_64BIT 64)r6 else debarch=mips fi ;; aarch64|arm64) debarch=arm64 ;; arm*) if is_enabled CONFIG_AEABI; then debarch=arm$(if_enabled_echo CONFIG_VFP hf el) else debarch=arm fi ;; openrisc) debarch=or1k ;; sh) if is_enabled CONFIG_CPU_SH3; then debarch=sh3$(if_enabled_echo CONFIG_CPU_BIG_ENDIAN eb) elif is_enabled CONFIG_CPU_SH4; then debarch=sh4$(if_enabled_echo CONFIG_CPU_BIG_ENDIAN eb) fi ;; esac if [ -z "$debarch" ]; then debarch=$(dpkg-architecture -qDEB_HOST_ARCH) echo "" >&2 echo "** ** ** WARNING ** ** **" >&2 echo "" >&2 echo "Your architecture doesn't have its equivalent" >&2 echo "Debian userspace architecture defined!" >&2 echo "Falling back to the current host architecture ($debarch)." >&2 echo "Please add support for $UTS_MACHINE to ${0} ..." >&2 echo "" >&2 fi } # Some variables and settings used throughout the script version=$KERNELRELEASE if [ -n "$KDEB_PKGVERSION" ]; then packageversion=$KDEB_PKGVERSION revision=${packageversion##*-} else revision=$(cat .version 2>/dev/null||echo 1) packageversion=$version-$revision fi sourcename=$KDEB_SOURCENAME packagename=linux-image-$version kernel_headers_packagename=linux-headers-$version dbg_packagename=$packagename-dbg debarch= set_debarch if [ "$ARCH" = "um" ] ; then packagename=user-mode-linux-$version fi email=${DEBEMAIL-$EMAIL} # use email string directly if it contains <email> if echo $email | grep -q '<.*>'; then maintainer=$email else # or construct the maintainer string user=${KBUILD_BUILD_USER-$(id -nu)} name=${DEBFULLNAME-$user} if [ -z "$email" ]; then buildhost=${KBUILD_BUILD_HOST-$(hostname -f 2>/dev/null || hostname)} email="$user@$buildhost" fi maintainer="$name <$email>" fi # Try to determine distribution if [ -n "$KDEB_CHANGELOG_DIST" ]; then distribution=$KDEB_CHANGELOG_DIST # In some cases lsb_release returns the codename as n/a, which breaks dpkg-parsechangelog elif distribution=$(lsb_release -cs 2>/dev/null) && [ -n "$distribution" ] && [ "$distribution" != "n/a" ]; then : # nothing to do in this case else distribution="unstable" echo >&2 "Using default distribution of 'unstable' in the changelog" echo >&2 "Install lsb-release or set \$KDEB_CHANGELOG_DIST explicitly" fi mkdir -p debian/source/ echo "1.0" > debian/source/format echo $debarch > debian/arch extra_build_depends=", $(if_enabled_echo CONFIG_UNWINDER_ORC libelf-dev:native)" extra_build_depends="$extra_build_depends, $(if_enabled_echo CONFIG_SYSTEM_TRUSTED_KEYRING libssl-dev:native)" # Generate a simple changelog template cat <<EOF > debian/changelog $sourcename ($packageversion) $distribution; urgency=low * Custom built Linux kernel. -- $maintainer $(date -R) EOF # Generate copyright file cat <<EOF > debian/copyright This is a packacked upstream version of the Linux kernel. The sources may be found at most Linux archive sites, including: https://www.kernel.org/pub/linux/kernel Copyright: 1991 - 2018 Linus Torvalds and others. The git repository for mainline kernel development is at: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 dated June, 1991. On Debian GNU/Linux systems, the complete text of the GNU General Public License version 2 can be found in \`/usr/share/common-licenses/GPL-2'. EOF # Generate a control file cat <<EOF > debian/control Source: $sourcename Section: kernel Priority: optional Maintainer: $maintainer Build-Depends: bc, rsync, kmod, cpio, bison, flex | flex:native $extra_build_depends Homepage: http://www.kernel.org/ Package: $packagename Architecture: $debarch Description: Linux kernel, version $version This package contains the Linux kernel, modules and corresponding other files, version: $version. Package: $kernel_headers_packagename Architecture: $debarch Description: Linux kernel headers for $version on $debarch This package provides kernel header files for $version on $debarch . This is useful for people who need to build external modules Package: linux-libc-dev Section: devel Provides: linux-kernel-headers Architecture: $debarch Description: Linux support headers for userspace development This package provides userspaces headers from the Linux kernel. These headers are used by the installed headers for GNU glibc and other system libraries. Multi-Arch: same Package: $dbg_packagename Section: debug Architecture: $debarch Description: Linux kernel debugging symbols for $version This package will come in handy if you need to debug the kernel. It provides all the necessary debug symbols for the kernel and its modules. EOF cat <<EOF > debian/rules #!$(command -v $MAKE) -f srctree ?= . build: \$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} \ KBUILD_BUILD_VERSION=${revision} -f \$(srctree)/Makefile binary-arch: \$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} \ KBUILD_BUILD_VERSION=${revision} -f \$(srctree)/Makefile intdeb-pkg clean: rm -rf debian/*tmp debian/files \$(MAKE) clean binary: binary-arch EOF chmod +x debian/rules exit 0