1#!/bin/sh 2# 3# Copyright 2003 Wichert Akkerman <[email protected]> 4# 5# Simple script to generate a debian/ directory for a Linux kernel. 6 7set -e 8 9is_enabled() { 10 grep -q "^$1=y" include/config/auto.conf 11} 12 13if_enabled_echo() { 14 if is_enabled "$1"; then 15 echo -n "$2" 16 elif [ $# -ge 3 ]; then 17 echo -n "$3" 18 fi 19} 20 21set_debarch() { 22 if [ -n "$KBUILD_DEBARCH" ] ; then 23 debarch="$KBUILD_DEBARCH" 24 return 25 fi 26 27 # Attempt to find the correct Debian architecture 28 case "$UTS_MACHINE" in 29 i386|alpha|m68k|riscv*) 30 debarch="$UTS_MACHINE" ;; 31 x86_64) 32 debarch=amd64 ;; 33 sparc*) 34 debarch=sparc$(if_enabled_echo CONFIG_64BIT 64) ;; 35 s390*) 36 debarch=s390x ;; 37 ppc*) 38 if is_enabled CONFIG_64BIT; then 39 debarch=ppc64$(if_enabled_echo CONFIG_CPU_LITTLE_ENDIAN el) 40 else 41 debarch=powerpc$(if_enabled_echo CONFIG_SPE spe) 42 fi 43 ;; 44 parisc*) 45 debarch=hppa ;; 46 mips*) 47 if is_enabled CONFIG_CPU_LITTLE_ENDIAN; then 48 debarch=mips$(if_enabled_echo CONFIG_64BIT 64)$(if_enabled_echo CONFIG_CPU_MIPSR6 r6)el 49 elif is_enabled CONFIG_CPU_MIPSR6; then 50 debarch=mips$(if_enabled_echo CONFIG_64BIT 64)r6 51 else 52 debarch=mips 53 fi 54 ;; 55 aarch64|arm64) 56 debarch=arm64 ;; 57 arm*) 58 if is_enabled CONFIG_AEABI; then 59 debarch=arm$(if_enabled_echo CONFIG_VFP hf el) 60 else 61 debarch=arm 62 fi 63 ;; 64 openrisc) 65 debarch=or1k ;; 66 sh) 67 if is_enabled CONFIG_CPU_SH3; then 68 debarch=sh3$(if_enabled_echo CONFIG_CPU_BIG_ENDIAN eb) 69 elif is_enabled CONFIG_CPU_SH4; then 70 debarch=sh4$(if_enabled_echo CONFIG_CPU_BIG_ENDIAN eb) 71 fi 72 ;; 73 esac 74 if [ -z "$debarch" ]; then 75 debarch=$(dpkg-architecture -qDEB_HOST_ARCH) 76 echo "" >&2 77 echo "** ** ** WARNING ** ** **" >&2 78 echo "" >&2 79 echo "Your architecture doesn't have its equivalent" >&2 80 echo "Debian userspace architecture defined!" >&2 81 echo "Falling back to the current host architecture ($debarch)." >&2 82 echo "Please add support for $UTS_MACHINE to ${0} ..." >&2 83 echo "" >&2 84 fi 85} 86 87# Create debian/source/ if it is a source package build 88gen_source () 89{ 90 mkdir -p debian/source 91 92 echo "3.0 (quilt)" > debian/source/format 93 94 { 95 echo "diff-ignore" 96 echo "extend-diff-ignore = .*" 97 } > debian/source/local-options 98 99 # Add .config as a patch 100 mkdir -p debian/patches 101 { 102 echo "Subject: Add .config" 103 echo "Author: ${maintainer}" 104 echo 105 echo "--- /dev/null" 106 echo "+++ linux/.config" 107 diff -u /dev/null "${KCONFIG_CONFIG}" | tail -n +3 108 } > debian/patches/config.patch 109 echo config.patch > debian/patches/series 110 111 "${srctree}/scripts/package/gen-diff-patch" debian/patches/diff.patch 112 if [ -s debian/patches/diff.patch ]; then 113 sed -i " 114 1iSubject: Add local diff 115 1iAuthor: ${maintainer} 116 1i 117 " debian/patches/diff.patch 118 119 echo diff.patch >> debian/patches/series 120 else 121 rm -f debian/patches/diff.patch 122 fi 123} 124 125rm -rf debian 126mkdir debian 127 128user=${KBUILD_BUILD_USER-$(id -nu)} 129name=${DEBFULLNAME-${user}} 130if [ "${DEBEMAIL:+set}" ]; then 131 email=${DEBEMAIL} 132else 133 buildhost=${KBUILD_BUILD_HOST-$(hostname -f 2>/dev/null || hostname)} 134 email="${user}@${buildhost}" 135fi 136maintainer="${name} <${email}>" 137 138if [ "$1" = --need-source ]; then 139 gen_source 140fi 141 142# Some variables and settings used throughout the script 143version=$KERNELRELEASE 144if [ -n "$KDEB_PKGVERSION" ]; then 145 packageversion=$KDEB_PKGVERSION 146else 147 packageversion=$(${srctree}/scripts/setlocalversion --no-local ${srctree})-$($srctree/scripts/build-version) 148fi 149sourcename=${KDEB_SOURCENAME:-linux-upstream} 150 151if [ "$ARCH" = "um" ] ; then 152 packagename=user-mode-linux 153else 154 packagename=linux-image 155fi 156 157debarch= 158set_debarch 159 160# Try to determine distribution 161if [ -n "$KDEB_CHANGELOG_DIST" ]; then 162 distribution=$KDEB_CHANGELOG_DIST 163# In some cases lsb_release returns the codename as n/a, which breaks dpkg-parsechangelog 164elif distribution=$(lsb_release -cs 2>/dev/null) && [ -n "$distribution" ] && [ "$distribution" != "n/a" ]; then 165 : # nothing to do in this case 166else 167 distribution="unstable" 168 echo >&2 "Using default distribution of 'unstable' in the changelog" 169 echo >&2 "Install lsb-release or set \$KDEB_CHANGELOG_DIST explicitly" 170fi 171 172echo $debarch > debian/arch 173 174# Generate a simple changelog template 175cat <<EOF > debian/changelog 176$sourcename ($packageversion) $distribution; urgency=low 177 178 * Custom built Linux kernel. 179 180 -- $maintainer $(date -R) 181EOF 182 183# Generate a control file 184cat <<EOF > debian/control 185Source: $sourcename 186Section: kernel 187Priority: optional 188Maintainer: $maintainer 189Rules-Requires-Root: no 190Build-Depends: debhelper-compat (= 12) 191Build-Depends-Arch: bc, bison, cpio, flex, kmod, libelf-dev:native, libssl-dev:native, rsync 192Homepage: https://www.kernel.org/ 193 194Package: $packagename-$version 195Architecture: $debarch 196Description: Linux kernel, version $version 197 This package contains the Linux kernel, modules and corresponding other 198 files, version: $version. 199EOF 200 201if [ "${SRCARCH}" != um ]; then 202cat <<EOF >> debian/control 203 204Package: linux-libc-dev 205Section: devel 206Provides: linux-kernel-headers 207Architecture: $debarch 208Description: Linux support headers for userspace development 209 This package provides userspaces headers from the Linux kernel. These headers 210 are used by the installed headers for GNU glibc and other system libraries. 211Multi-Arch: same 212EOF 213 214if is_enabled CONFIG_MODULES; then 215cat <<EOF >> debian/control 216 217Package: linux-headers-$version 218Architecture: $debarch 219Description: Linux kernel headers for $version on $debarch 220 This package provides kernel header files for $version on $debarch 221 . 222 This is useful for people who need to build external modules 223EOF 224fi 225fi 226 227if is_enabled CONFIG_DEBUG_INFO; then 228cat <<EOF >> debian/control 229 230Package: linux-image-$version-dbg 231Section: debug 232Architecture: $debarch 233Description: Linux kernel debugging symbols for $version 234 This package will come in handy if you need to debug the kernel. It provides 235 all the necessary debug symbols for the kernel and its modules. 236EOF 237fi 238 239cat <<EOF > debian/rules.vars 240ARCH := ${ARCH} 241KERNELRELEASE := ${KERNELRELEASE} 242EOF 243 244cp "${srctree}/scripts/package/debian/copyright" debian/ 245cp "${srctree}/scripts/package/debian/rules" debian/ 246 247exit 0 248