scripts/package/mkdebian

   1 #!/bin/sh
   2 #
   3 # Copyright 2003 Wichert Akkerman <wichert@wiggy.net>
   4 #
   5 # Simple script to generate a debian/ directory for a Linux kernel.
   6
   7 set -e
   8
   9 is_enabled() {
  10         grep -q "^$1=y" include/config/auto.conf
  11 }
  12
  13 if_enabled_echo() {
  14         if is_enabled "$1"; then
  15                 echo -n "$2"
  16         elif [ $# -ge 3 ]; then
  17                 echo -n "$3"
  18         fi
  19 }
  20
  21 set_debarch() {
  22         if [ -n "$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|ia64|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 ${0} ..." >&2
  83                 echo "" >&2
  84         fi
  85 }
  86
  87 rm -rf debian
  88
  89 # Some variables and settings used throughout the script
  90 version=$KERNELRELEASE
  91 if [ -n "$KDEB_PKGVERSION" ]; then
  92         packageversion=$KDEB_PKGVERSION
  93 else
  94         packageversion=$(${srctree}/scripts/setlocalversion --no-local ${srctree})-$($srctree/init/build-version)
  95 fi
  96 sourcename=${KDEB_SOURCENAME:-linux-upstream}
  97
  98 if [ "$ARCH" = "um" ] ; then
  99         packagename=user-mode-linux
 100 else
 101         packagename=linux-image
 102 fi
 103
 104 debarch=
 105 set_debarch
 106
 107 email=${DEBEMAIL-$EMAIL}
 108
 109 # use email string directly if it contains <email>
 110 if echo $email | grep -q '<.*>'; then
 111         maintainer=$email
 112 else
 113         # or construct the maintainer string
 114         user=${KBUILD_BUILD_USER-$(id -nu)}
 115         name=${DEBFULLNAME-$user}
 116         if [ -z "$email" ]; then
 117                 buildhost=${KBUILD_BUILD_HOST-$(hostname -f 2>/dev/null || hostname)}
 118                 email="$user@$buildhost"
 119         fi
 120         maintainer="$name <$email>"
 121 fi
 122
 123 # Try to determine distribution
 124 if [ -n "$KDEB_CHANGELOG_DIST" ]; then
 125         distribution=$KDEB_CHANGELOG_DIST
 126 # In some cases lsb_release returns the codename as n/a, which breaks dpkg-parsechangelog
 127 elif distribution=$(lsb_release -cs 2>/dev/null) && [ -n "$distribution" ] && [ "$distribution" != "n/a" ]; then
 128         : # nothing to do in this case
 129 else
 130         distribution="unstable"
 131         echo >&2 "Using default distribution of 'unstable' in the changelog"
 132         echo >&2 "Install lsb-release or set \$KDEB_CHANGELOG_DIST explicitly"
 133 fi
 134
 135 mkdir -p debian/source/
 136 echo "3.0 (quilt)" > debian/source/format
 137
 138 {
 139         echo "diff-ignore"
 140         echo "extend-diff-ignore = .*"
 141 } > debian/source/local-options
 142
 143 # Add .config as a patch
 144 mkdir -p debian/patches
 145 {
 146         echo "Subject: Add .config"
 147         echo "Author: ${maintainer}"
 148         echo
 149         echo "--- /dev/null"
 150         echo "+++ linux/.config"
 151         diff -u /dev/null "${KCONFIG_CONFIG}" | tail -n +3
 152 } > debian/patches/config
 153 echo config > debian/patches/series
 154
 155 $(dirname $0)/gen-diff-patch debian/patches/diff.patch debian/patches/untracked.patch
 156 if [ -f debian/patches/diff.patch ]; then
 157         echo diff.patch >> debian/patches/series
 158 fi
 159 if [ -f debian/patches/untracked.patch ]; then
 160         echo untracked.patch >> debian/patches/series
 161 fi
 162
 163 echo $debarch > debian/arch
 164 extra_build_depends=", $(if_enabled_echo CONFIG_UNWINDER_ORC libelf-dev:native)"
 165 extra_build_depends="$extra_build_depends, $(if_enabled_echo CONFIG_SYSTEM_TRUSTED_KEYRING libssl-dev:native)"
 166
 167 # Generate a simple changelog template
 168 cat <<EOF > debian/changelog
 169 $sourcename ($packageversion) $distribution; urgency=low
 170
 171   * Custom built Linux kernel.
 172
 173  -- $maintainer  $(date -R)
 174 EOF
 175
 176 # Generate copyright file
 177 cat <<EOF > debian/copyright
 178 This is a packacked upstream version of the Linux kernel.
 179
 180 The sources may be found at most Linux archive sites, including:
 181 https://www.kernel.org/pub/linux/kernel
 182
 183 Copyright: 1991 - 2018 Linus Torvalds and others.
 184
 185 The git repository for mainline kernel development is at:
 186 git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
 187
 188     This program is free software; you can redistribute it and/or modify
 189     it under the terms of the GNU General Public License as published by
 190     the Free Software Foundation; version 2 dated June, 1991.
 191
 192 On Debian GNU/Linux systems, the complete text of the GNU General Public
 193 License version 2 can be found in \`/usr/share/common-licenses/GPL-2'.
 194 EOF
 195
 196 # Generate a control file
 197 cat <<EOF > debian/control
 198 Source: $sourcename
 199 Section: kernel
 200 Priority: optional
 201 Maintainer: $maintainer
 202 Rules-Requires-Root: no
 203 Build-Depends: bc, debhelper, rsync, kmod, cpio, bison, flex $extra_build_depends
 204 Homepage: https://www.kernel.org/
 205
 206 Package: $packagename-$version
 207 Architecture: $debarch
 208 Description: Linux kernel, version $version
 209  This package contains the Linux kernel, modules and corresponding other
 210  files, version: $version.
 211 EOF
 212
 213 if [ "${SRCARCH}" != um ]; then
 214 cat <<EOF >> debian/control
 215
 216 Package: linux-libc-dev
 217 Section: devel
 218 Provides: linux-kernel-headers
 219 Architecture: $debarch
 220 Description: Linux support headers for userspace development
 221  This package provides userspaces headers from the Linux kernel.  These headers
 222  are used by the installed headers for GNU glibc and other system libraries.
 223 Multi-Arch: same
 224 EOF
 225
 226 if is_enabled CONFIG_MODULES; then
 227 cat <<EOF >> debian/control
 228
 229 Package: linux-headers-$version
 230 Architecture: $debarch
 231 Description: Linux kernel headers for $version on $debarch
 232  This package provides kernel header files for $version on $debarch
 233  .
 234  This is useful for people who need to build external modules
 235 EOF
 236 fi
 237 fi
 238
 239 if is_enabled CONFIG_DEBUG_INFO; then
 240 cat <<EOF >> debian/control
 241
 242 Package: linux-image-$version-dbg
 243 Section: debug
 244 Architecture: $debarch
 245 Description: Linux kernel debugging symbols for $version
 246  This package will come in handy if you need to debug the kernel. It provides
 247  all the necessary debug symbols for the kernel and its modules.
 248 EOF
 249 fi
 250
 251 cat <<EOF > debian/rules
 252 #!$(command -v $MAKE) -f
 253
 254 srctree ?= .
 255 KERNELRELEASE = ${KERNELRELEASE}
 256
 257 build-indep:
 258 build-arch:
 259         \$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} \
 260         KERNELRELEASE=\$(KERNELRELEASE) \
 261         \$(shell \$(srctree)/scripts/package/deb-build-option) \
 262         olddefconfig all
 263
 264 build: build-arch
 265
 266 binary-indep:
 267 binary-arch: build-arch
 268         \$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} \
 269         KERNELRELEASE=\$(KERNELRELEASE) intdeb-pkg
 270
 271 clean:
 272         rm -rf debian/files debian/linux-*
 273         \$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} clean
 274
 275 binary: binary-arch
 276 EOF
 277 chmod +x debian/rules
 278
 279 exit 0