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 "^CONFIG_$1=y" $KCONFIG_CONFIG
  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 64BIT 64) ;;
  35         s390*)
  36                 debarch=s390x ;;
  37         ppc*)
  38                 if is_enabled 64BIT; then
  39                         debarch=ppc64$(if_enabled_echo CPU_LITTLE_ENDIAN el)
  40                 else
  41                         debarch=powerpc$(if_enabled_echo SPE spe)
  42                 fi
  43                 ;;
  44         parisc*)
  45                 debarch=hppa ;;
  46         mips*)
  47                 if is_enabled CPU_LITTLE_ENDIAN; then
  48                         debarch=mips$(if_enabled_echo 64BIT 64)$(if_enabled_echo CPU_MIPSR6 r6)el
  49                 elif is_enabled CPU_MIPSR6; then
  50                         debarch=mips$(if_enabled_echo 64BIT 64)r6
  51                 else
  52                         debarch=mips
  53                 fi
  54                 ;;
  55         aarch64|arm64)
  56                 debarch=arm64 ;;
  57         arm*)
  58                 if is_enabled AEABI; then
  59                         debarch=arm$(if_enabled_echo VFP hf el)
  60                 else
  61                         debarch=arm
  62                 fi
  63                 ;;
  64         openrisc)
  65                 debarch=or1k ;;
  66         sh)
  67                 if is_enabled CPU_SH3; then
  68                         debarch=sh3$(if_enabled_echo CPU_BIG_ENDIAN eb)
  69                 elif is_enabled CPU_SH4; then
  70                         debarch=sh4$(if_enabled_echo 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 ${0} ..." >&2
  83                 echo "" >&2
  84         fi
  85 }
  86
  87 # Some variables and settings used throughout the script
  88 version=$KERNELRELEASE
  89 if [ -n "$KDEB_PKGVERSION" ]; then
  90         packageversion=$KDEB_PKGVERSION
  91         revision=${packageversion##*-}
  92 else
  93         revision=$(cat .version 2>/dev/null||echo 1)
  94         packageversion=$version-$revision
  95 fi
  96 sourcename=$KDEB_SOURCENAME
  97 packagename=linux-image-$version
  98 kernel_headers_packagename=linux-headers-$version
  99 dbg_packagename=$packagename-dbg
 100 debarch=
 101 set_debarch
 102
 103 if [ "$ARCH" = "um" ] ; then
 104         packagename=user-mode-linux-$version
 105 fi
 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/
 136 echo $debarch > debian/arch
 137
 138 # Generate a simple changelog template
 139 cat <<EOF > debian/changelog
 140 $sourcename ($packageversion) $distribution; urgency=low
 141
 142   * Custom built Linux kernel.
 143
 144  -- $maintainer  $(date -R)
 145 EOF
 146
 147 # Generate copyright file
 148 cat <<EOF > debian/copyright
 149 This is a packacked upstream version of the Linux kernel.
 150
 151 The sources may be found at most Linux archive sites, including:
 152 https://www.kernel.org/pub/linux/kernel
 153
 154 Copyright: 1991 - 2018 Linus Torvalds and others.
 155
 156 The git repository for mainline kernel development is at:
 157 git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
 158
 159     This program is free software; you can redistribute it and/or modify
 160     it under the terms of the GNU General Public License as published by
 161     the Free Software Foundation; version 2 dated June, 1991.
 162
 163 On Debian GNU/Linux systems, the complete text of the GNU General Public
 164 License version 2 can be found in \`/usr/share/common-licenses/GPL-2'.
 165 EOF
 166
 167 # Generate a control file
 168 cat <<EOF > debian/control
 169 Source: $sourcename
 170 Section: kernel
 171 Priority: optional
 172 Maintainer: $maintainer
 173 Build-Depends: bc, kmod, cpio
 174 Homepage: http://www.kernel.org/
 175
 176 Package: $packagename
 177 Architecture: $debarch
 178 Description: Linux kernel, version $version
 179  This package contains the Linux kernel, modules and corresponding other
 180  files, version: $version.
 181
 182 Package: $kernel_headers_packagename
 183 Architecture: $debarch
 184 Description: Linux kernel headers for $version on $debarch
 185  This package provides kernel header files for $version on $debarch
 186  .
 187  This is useful for people who need to build external modules
 188
 189 Package: linux-libc-dev
 190 Section: devel
 191 Provides: linux-kernel-headers
 192 Architecture: $debarch
 193 Description: Linux support headers for userspace development
 194  This package provides userspaces headers from the Linux kernel.  These headers
 195  are used by the installed headers for GNU glibc and other system libraries.
 196
 197 Package: $dbg_packagename
 198 Section: debug
 199 Architecture: $debarch
 200 Description: Linux kernel debugging symbols for $version
 201  This package will come in handy if you need to debug the kernel. It provides
 202  all the necessary debug symbols for the kernel and its modules.
 203 EOF
 204
 205 cat <<EOF > debian/rules
 206 #!$(command -v $MAKE) -f
 207
 208 build:
 209         \$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} \
 210         KBUILD_BUILD_VERSION=${revision} KBUILD_SRC=
 211
 212 binary-arch:
 213         \$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} \
 214         KBUILD_BUILD_VERSION=${revision} KBUILD_SRC= intdeb-pkg
 215
 216 clean:
 217         rm -rf debian/*tmp debian/files
 218         \$(MAKE) clean
 219
 220 binary: binary-arch
 221 EOF
 222
 223 exit 0