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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 -eu 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 "$3" fi } set_debarch() { if [ "${KBUILD_DEBARCH:+set}" ]; then debarch="$KBUILD_DEBARCH" return fi # Attempt to find the correct Debian architecture case "$UTS_MACHINE" in i386|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 ;; um) if is_enabled CONFIG_64BIT; then debarch=amd64 else debarch=i386 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 build gen_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: ${maintainer} 1i " debian/patches/diff.patch echo diff.patch >> debian/patches/series else rm -f debian/patches/diff.patch fi } rm -rf debian mkdir debian user=${KBUILD_BUILD_USER:-$(id -nu)} name=${DEBFULLNAME:-${user}} if [ "${DEBEMAIL:+set}" ]; then email=${DEBEMAIL} else buildhost=${KBUILD_BUILD_HOST:-$(hostname -f 2>/dev/null || hostname)} email="${user}@${buildhost}" fi maintainer="${name} <${email}>" while [ $# -gt 0 ]; do case "$1" in --need-source) gen_source shift ;; *) break ;; esac done # Some variables and settings used throughout the script version=$KERNELRELEASE if [ "${KDEB_PKGVERSION:+set}" ]; then packageversion=$KDEB_PKGVERSION else packageversion=$(${srctree}/scripts/setlocalversion --no-local ${srctree})-$($srctree/scripts/build-version) fi sourcename=${KDEB_SOURCENAME:-linux-upstream} if [ "$ARCH" = "um" ] ; then packagename=user-mode-linux else packagename=linux-image fi debarch= set_debarch # Try to determine distribution if [ "${KDEB_CHANGELOG_DIST:+set}" ]; 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 echo $debarch > debian/arch host_gnu=$(dpkg-architecture -a "${debarch}" -q DEB_HOST_GNU_TYPE | sed 's/_/-/g') # Generate a simple changelog template cat <<EOF > debian/changelog $sourcename ($packageversion) $distribution; urgency=low * Custom built Linux kernel. -- $maintainer $(date -R) EOF # Generate a control file cat <<EOF > debian/control Source: $sourcename Section: kernel Priority: optional Maintainer: $maintainer Rules-Requires-Root: no Build-Depends: debhelper-compat (= 12) Build-Depends-Arch: bc, bison, flex, gcc-${host_gnu} <!pkg.${sourcename}.nokernelheaders>, kmod, libelf-dev:native, libssl-dev:native, libssl-dev <!pkg.${sourcename}.nokernelheaders>, python3:native, rsync Homepage: https://www.kernel.org/ Package: $packagename-$version Architecture: $debarch Description: Linux kernel, version $version This package contains the Linux kernel, modules and corresponding other files, version: $version. EOF if [ "${SRCARCH}" != um ]; then cat <<EOF >> debian/control Package: linux-libc-dev Section: devel Provides: linux-kernel-headers Architecture: $debarch Description: Linux support headers for userspace development This package provides userspaces headers from the Linux kernel. These headers are used by the installed headers for GNU glibc and other system libraries. Multi-Arch: same EOF if is_enabled CONFIG_MODULES; then cat <<EOF >> debian/control Package: linux-headers-$version Architecture: $debarch Build-Profiles: <!pkg.${sourcename}.nokernelheaders> Description: Linux kernel headers for $version on $debarch This package provides kernel header files for $version on $debarch . This is useful for people who need to build external modules EOF fi fi if is_enabled CONFIG_DEBUG_INFO; then cat <<EOF >> debian/control Package: linux-image-$version-dbg Section: debug Architecture: $debarch Build-Profiles: <!pkg.${sourcename}.nokerneldbg> 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 fi cat <<EOF > debian/rules.vars ARCH := ${ARCH} KERNELRELEASE := ${KERNELRELEASE} EOF cp "${srctree}/scripts/package/debian/copyright" debian/ cp "${srctree}/scripts/package/debian/rules" debian/ exit 0