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 set_debarch() {
  10         # Attempt to find the correct Debian architecture
  11         case "$UTS_MACHINE" in
  12         i386|ia64|alpha)
  13                 debarch="$UTS_MACHINE" ;;
  14         x86_64)
  15                 debarch=amd64 ;;
  16         sparc*)
  17                 debarch=sparc ;;
  18         s390*)
  19                 debarch=s390$(grep -q CONFIG_64BIT=y $KCONFIG_CONFIG && echo x || true) ;;
  20         ppc*)
  21                 debarch=$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo ppc64el || echo powerpc) ;;
  22         parisc*)
  23                 debarch=hppa ;;
  24         mips*)
  25                 debarch=mips$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo el || true) ;;
  26         aarch64|arm64)
  27                 debarch=arm64 ;;
  28         arm*)
  29                 if grep -q CONFIG_AEABI=y $KCONFIG_CONFIG; then
  30                     if grep -q CONFIG_VFP=y $KCONFIG_CONFIG; then
  31                         debarch=armhf
  32                     else
  33                         debarch=armel
  34                     fi
  35                 else
  36                     debarch=arm
  37                 fi
  38                 ;;
  39         *)
  40                 debarch=$(dpkg --print-architecture)
  41                 echo "" >&2
  42                 echo "** ** **  WARNING  ** ** **" >&2
  43                 echo "" >&2
  44                 echo "Your architecture doesn't have its equivalent" >&2
  45                 echo "Debian userspace architecture defined!" >&2
  46                 echo "Falling back to using your current userspace instead!" >&2
  47                 echo "Please add support for $UTS_MACHINE to ${0} ..." >&2
  48                 echo "" >&2
  49         esac
  50         if [ -n "$KBUILD_DEBARCH" ] ; then
  51                 debarch="$KBUILD_DEBARCH"
  52         fi
  53 }
  54
  55 # Some variables and settings used throughout the script
  56 version=$KERNELRELEASE
  57 if [ -n "$KDEB_PKGVERSION" ]; then
  58         packageversion=$KDEB_PKGVERSION
  59 else
  60         revision=$(cat .version 2>/dev/null||echo 1)
  61         packageversion=$version-$revision
  62 fi
  63 sourcename=$KDEB_SOURCENAME
  64 packagename=linux-image-$version
  65 kernel_headers_packagename=linux-headers-$version
  66 dbg_packagename=$packagename-dbg
  67 debarch=
  68 set_debarch
  69
  70 if [ "$ARCH" = "um" ] ; then
  71         packagename=user-mode-linux-$version
  72 fi
  73
  74 email=${DEBEMAIL-$EMAIL}
  75
  76 # use email string directly if it contains <email>
  77 if echo $email | grep -q '<.*>'; then
  78         maintainer=$email
  79 else
  80         # or construct the maintainer string
  81         user=${KBUILD_BUILD_USER-$(id -nu)}
  82         name=${DEBFULLNAME-$user}
  83         if [ -z "$email" ]; then
  84                 buildhost=${KBUILD_BUILD_HOST-$(hostname -f 2>/dev/null || hostname)}
  85                 email="$user@$buildhost"
  86         fi
  87         maintainer="$name <$email>"
  88 fi
  89
  90 # Try to determine distribution
  91 if [ -n "$KDEB_CHANGELOG_DIST" ]; then
  92         distribution=$KDEB_CHANGELOG_DIST
  93 # In some cases lsb_release returns the codename as n/a, which breaks dpkg-parsechangelog
  94 elif distribution=$(lsb_release -cs 2>/dev/null) && [ -n "$distribution" ] && [ "$distribution" != "n/a" ]; then
  95         : # nothing to do in this case
  96 else
  97         distribution="unstable"
  98         echo >&2 "Using default distribution of 'unstable' in the changelog"
  99         echo >&2 "Install lsb-release or set \$KDEB_CHANGELOG_DIST explicitly"
 100 fi
 101
 102 mkdir -p debian/
 103 echo $debarch > debian/arch
 104
 105 # Generate a simple changelog template
 106 cat <<EOF > debian/changelog
 107 $sourcename ($packageversion) $distribution; urgency=low
 108
 109   * Custom built Linux kernel.
 110
 111  -- $maintainer  $(date -R)
 112 EOF
 113
 114 # Generate copyright file
 115 cat <<EOF > debian/copyright
 116 This is a packacked upstream version of the Linux kernel.
 117
 118 The sources may be found at most Linux archive sites, including:
 119 https://www.kernel.org/pub/linux/kernel
 120
 121 Copyright: 1991 - 2018 Linus Torvalds and others.
 122
 123 The git repository for mainline kernel development is at:
 124 git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
 125
 126     This program is free software; you can redistribute it and/or modify
 127     it under the terms of the GNU General Public License as published by
 128     the Free Software Foundation; version 2 dated June, 1991.
 129
 130 On Debian GNU/Linux systems, the complete text of the GNU General Public
 131 License version 2 can be found in \`/usr/share/common-licenses/GPL-2'.
 132 EOF
 133
 134 # Generate a control file
 135 cat <<EOF > debian/control
 136 Source: $sourcename
 137 Section: kernel
 138 Priority: optional
 139 Maintainer: $maintainer
 140 Build-Depends: bc, kmod, cpio
 141 Homepage: http://www.kernel.org/
 142
 143 Package: $packagename
 144 Architecture: $debarch
 145 Description: Linux kernel, version $version
 146  This package contains the Linux kernel, modules and corresponding other
 147  files, version: $version.
 148
 149 Package: $kernel_headers_packagename
 150 Architecture: $debarch
 151 Description: Linux kernel headers for $version on $debarch
 152  This package provides kernel header files for $version on $debarch
 153  .
 154  This is useful for people who need to build external modules
 155
 156 Package: linux-libc-dev
 157 Section: devel
 158 Provides: linux-kernel-headers
 159 Architecture: $debarch
 160 Description: Linux support headers for userspace development
 161  This package provides userspaces headers from the Linux kernel.  These headers
 162  are used by the installed headers for GNU glibc and other system libraries.
 163
 164 Package: $dbg_packagename
 165 Section: debug
 166 Architecture: $debarch
 167 Description: Linux kernel debugging symbols for $version
 168  This package will come in handy if you need to debug the kernel. It provides
 169  all the necessary debug symbols for the kernel and its modules.
 170 EOF
 171
 172 cat <<EOF > debian/rules
 173 #!$(command -v $MAKE) -f
 174
 175 build:
 176         \$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} KBUILD_SRC=
 177
 178 binary-arch:
 179         \$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} KBUILD_SRC= intdeb-pkg
 180
 181 clean:
 182         rm -rf debian/*tmp debian/files
 183         \$(MAKE) clean
 184
 185 binary: binary-arch
 186 EOF
 187
 188 exit 0