#!/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} # Create debian/source/ if it is a source package buildgen_source (){	mkdir -p debian/source 	echo "3.0 (quilt)" > debian/source/format 	{		echo "diff-ignore"		echo "extend-diff-ignore = .*"	} > debian/source/local-options 	# Add .config as a patch	mkdir -p debian/patches	{		echo "Subject: Add .config"		echo "Author: ${maintainer}"		echo		echo "--- /dev/null"		echo "+++ linux/.config"		diff -u /dev/null "${KCONFIG_CONFIG}" | tail -n +3	} > debian/patches/config.patch	echo config.patch > debian/patches/series 	"${srctree}/scripts/package/gen-diff-patch" debian/patches/diff.patch	if [ -s debian/patches/diff.patch ]; then		sed -i "			1iSubject: Add local diff			1iAuthor: ${maintainer}			1i		" debian/patches/diff.patch 		echo diff.patch >> debian/patches/series	else		rm -f debian/patches/diff.patch	fi} rm -rf debianmkdir debian email=${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 if [ "$1" = --need-source ]; then	gen_sourcefi # Some variables and settings used throughout the scriptversion=$KERNELRELEASEif [ -n "$KDEB_PKGVERSION" ]; then	packageversion=$KDEB_PKGVERSIONelse	packageversion=$(${srctree}/scripts/setlocalversion --no-local ${srctree})-$($srctree/init/build-version)fisourcename=${KDEB_SOURCENAME:-linux-upstream} if [ "$ARCH" = "um" ] ; then	packagename=user-mode-linuxelse	packagename=linux-imagefi debarch=set_debarch # Try to determine distributionif [ -n "$KDEB_CHANGELOG_DIST" ]; then        distribution=$KDEB_CHANGELOG_DIST# In some cases lsb_release returns the codename as n/a, which breaks dpkg-parsechangelogelif distribution=$(lsb_release -cs 2>/dev/null) && [ -n "$distribution" ] && [ "$distribution" != "n/a" ]; then        : # nothing to do in this caseelse        distribution="unstable"        echo >&2 "Using default distribution of 'unstable' in the changelog"        echo >&2 "Install lsb-release or set \$KDEB_CHANGELOG_DIST explicitly"fi echo $debarch > debian/archextra_build_depends=", $(if_enabled_echo CONFIG_UNWINDER_ORC libelf-dev:native)"extra_build_depends="$extra_build_depends, $(if_enabled_echo CONFIG_SYSTEM_TRUSTED_KEYRING libssl-dev:native)" # Generate a simple changelog templatecat <<EOF > debian/changelog$sourcename ($packageversion) $distribution; urgency=low   * Custom built Linux kernel.  -- $maintainer  $(date -R)EOF # Generate copyright filecat <<EOF > debian/copyrightThis is a packaged 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 PublicLicense version 2 can be found in \`/usr/share/common-licenses/GPL-2'.EOF # Generate a control filecat <<EOF > debian/controlSource: $sourcenameSection: kernelPriority: optionalMaintainer: $maintainerRules-Requires-Root: noBuild-Depends: bc, debhelper, rsync, kmod, cpio, bison, flex $extra_build_dependsHomepage: https://www.kernel.org/ Package: $packagename-$versionArchitecture: $debarchDescription: Linux kernel, version $version This package contains the Linux kernel, modules and corresponding other files, version: $version.EOF if [ "${SRCARCH}" != um ]; thencat <<EOF >> debian/control Package: linux-libc-devSection: develProvides: linux-kernel-headersArchitecture: $debarchDescription: Linux support headers for userspace development This package provides userspaces headers from the Linux kernel.  These headers are used by the installed headers for GNU glibc and other system libraries.Multi-Arch: sameEOF if is_enabled CONFIG_MODULES; thencat <<EOF >> debian/control Package: linux-headers-$versionArchitecture: $debarchDescription: Linux kernel headers for $version on $debarch This package provides kernel header files for $version on $debarch . This is useful for people who need to build external modulesEOFfifi if is_enabled CONFIG_DEBUG_INFO; thencat <<EOF >> debian/control Package: linux-image-$version-dbgSection: debugArchitecture: $debarchDescription: Linux kernel debugging symbols for $version This package will come in handy if you need to debug the kernel. It provides all the necessary debug symbols for the kernel and its modules.EOFfi cat <<EOF > debian/rules#!$(command -v $MAKE) -f srctree ?= .KERNELRELEASE = ${KERNELRELEASE} .PHONY: clean build build-arch build-indep binary binary-arch binary-indep build-indep:build-arch:	\$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} \	KERNELRELEASE=\$(KERNELRELEASE) \	\$(shell \$(srctree)/scripts/package/deb-build-option) \	olddefconfig all build: build-arch binary-indep:binary-arch: build-arch	\$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} \	KERNELRELEASE=\$(KERNELRELEASE) intdeb-pkg clean:	rm -rf debian/files debian/linux-*	\$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} clean binary: binary-archEOFchmod +x debian/rules exit 0