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=$version-$($srctree/init/build-version)
  95 fi
  96 sourcename=${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 echo $debarch > debian/arch
 156 extra_build_depends=", $(if_enabled_echo CONFIG_UNWINDER_ORC libelf-dev:native)"
 157 extra_build_depends="$extra_build_depends, $(if_enabled_echo CONFIG_SYSTEM_TRUSTED_KEYRING libssl-dev:native)"
 158
 159 # Generate a simple changelog template
 160 cat <<EOF > debian/changelog
 161 $sourcename ($packageversion) $distribution; urgency=low
 162
 163   * Custom built Linux kernel.
 164
 165  -- $maintainer  $(date -R)
 166 EOF
 167
 168 # Generate copyright file
 169 cat <<EOF > debian/copyright
 170 This is a packacked upstream version of the Linux kernel.
 171
 172 The sources may be found at most Linux archive sites, including:
 173 https://www.kernel.org/pub/linux/kernel
 174
 175 Copyright: 1991 - 2018 Linus Torvalds and others.
 176
 177 The git repository for mainline kernel development is at:
 178 git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
 179
 180     This program is free software; you can redistribute it and/or modify
 181     it under the terms of the GNU General Public License as published by
 182     the Free Software Foundation; version 2 dated June, 1991.
 183
 184 On Debian GNU/Linux systems, the complete text of the GNU General Public
 185 License version 2 can be found in \`/usr/share/common-licenses/GPL-2'.
 186 EOF
 187
 188 # Generate a control file
 189 cat <<EOF > debian/control
 190 Source: $sourcename
 191 Section: kernel
 192 Priority: optional
 193 Maintainer: $maintainer
 194 Rules-Requires-Root: no
 195 Build-Depends: bc, rsync, kmod, cpio, bison, flex $extra_build_depends
 196 Homepage: https://www.kernel.org/
 197
 198 Package: $packagename-$version
 199 Architecture: $debarch
 200 Description: Linux kernel, version $version
 201  This package contains the Linux kernel, modules and corresponding other
 202  files, version: $version.
 203
 204 Package: linux-libc-dev
 205 Section: devel
 206 Provides: linux-kernel-headers
 207 Architecture: $debarch
 208 Description: Linux support headers for userspace development
 209  This package provides userspaces headers from the Linux kernel.  These headers
 210  are used by the installed headers for GNU glibc and other system libraries.
 211 Multi-Arch: same
 212 EOF
 213
 214 if is_enabled CONFIG_MODULES; then
 215 cat <<EOF >> debian/control
 216
 217 Package: linux-headers-$version
 218 Architecture: $debarch
 219 Description: Linux kernel headers for $version on $debarch
 220  This package provides kernel header files for $version on $debarch
 221  .
 222  This is useful for people who need to build external modules
 223 EOF
 224 fi
 225
 226 if is_enabled CONFIG_DEBUG_INFO; then
 227 cat <<EOF >> debian/control
 228
 229 Package: linux-image-$version-dbg
 230 Section: debug
 231 Architecture: $debarch
 232 Description: Linux kernel debugging symbols for $version
 233  This package will come in handy if you need to debug the kernel. It provides
 234  all the necessary debug symbols for the kernel and its modules.
 235 EOF
 236 fi
 237
 238 cat <<EOF > debian/rules
 239 #!$(command -v $MAKE) -f
 240
 241 srctree ?= .
 242
 243 build-indep:
 244 build-arch:
 245         \$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} \
 246         \$(shell \$(srctree)/scripts/package/deb-build-option) \
 247         olddefconfig all
 248
 249 build: build-arch
 250
 251 binary-indep:
 252 binary-arch: build-arch
 253         \$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} intdeb-pkg
 254 clean:
 255         rm -rf debian/files debian/linux-*
 256         \$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} clean
 257
 258 binary: binary-arch
 259 EOF
 260 chmod +x debian/rules
 261
 262 exit 0