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 else
  92         revision=$(cat .version 2>/dev/null||echo 1)
  93         packageversion=$version-$revision
  94 fi
  95 sourcename=$KDEB_SOURCENAME
  96 packagename=linux-image-$version
  97 kernel_headers_packagename=linux-headers-$version
  98 dbg_packagename=$packagename-dbg
  99 debarch=
 100 set_debarch
 101
 102 if [ "$ARCH" = "um" ] ; then
 103         packagename=user-mode-linux-$version
 104 fi
 105
 106 email=${DEBEMAIL-$EMAIL}
 107
 108 # use email string directly if it contains <email>
 109 if echo $email | grep -q '<.*>'; then
 110         maintainer=$email
 111 else
 112         # or construct the maintainer string
 113         user=${KBUILD_BUILD_USER-$(id -nu)}
 114         name=${DEBFULLNAME-$user}
 115         if [ -z "$email" ]; then
 116                 buildhost=${KBUILD_BUILD_HOST-$(hostname -f 2>/dev/null || hostname)}
 117                 email="$user@$buildhost"
 118         fi
 119         maintainer="$name <$email>"
 120 fi
 121
 122 # Try to determine distribution
 123 if [ -n "$KDEB_CHANGELOG_DIST" ]; then
 124         distribution=$KDEB_CHANGELOG_DIST
 125 # In some cases lsb_release returns the codename as n/a, which breaks dpkg-parsechangelog
 126 elif distribution=$(lsb_release -cs 2>/dev/null) && [ -n "$distribution" ] && [ "$distribution" != "n/a" ]; then
 127         : # nothing to do in this case
 128 else
 129         distribution="unstable"
 130         echo >&2 "Using default distribution of 'unstable' in the changelog"
 131         echo >&2 "Install lsb-release or set \$KDEB_CHANGELOG_DIST explicitly"
 132 fi
 133
 134 mkdir -p debian/
 135 echo $debarch > debian/arch
 136
 137 # Generate a simple changelog template
 138 cat <<EOF > debian/changelog
 139 $sourcename ($packageversion) $distribution; urgency=low
 140
 141   * Custom built Linux kernel.
 142
 143  -- $maintainer  $(date -R)
 144 EOF
 145
 146 # Generate copyright file
 147 cat <<EOF > debian/copyright
 148 This is a packacked upstream version of the Linux kernel.
 149
 150 The sources may be found at most Linux archive sites, including:
 151 https://www.kernel.org/pub/linux/kernel
 152
 153 Copyright: 1991 - 2018 Linus Torvalds and others.
 154
 155 The git repository for mainline kernel development is at:
 156 git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
 157
 158     This program is free software; you can redistribute it and/or modify
 159     it under the terms of the GNU General Public License as published by
 160     the Free Software Foundation; version 2 dated June, 1991.
 161
 162 On Debian GNU/Linux systems, the complete text of the GNU General Public
 163 License version 2 can be found in \`/usr/share/common-licenses/GPL-2'.
 164 EOF
 165
 166 # Generate a control file
 167 cat <<EOF > debian/control
 168 Source: $sourcename
 169 Section: kernel
 170 Priority: optional
 171 Maintainer: $maintainer
 172 Build-Depends: bc, kmod, cpio
 173 Homepage: http://www.kernel.org/
 174
 175 Package: $packagename
 176 Architecture: $debarch
 177 Description: Linux kernel, version $version
 178  This package contains the Linux kernel, modules and corresponding other
 179  files, version: $version.
 180
 181 Package: $kernel_headers_packagename
 182 Architecture: $debarch
 183 Description: Linux kernel headers for $version on $debarch
 184  This package provides kernel header files for $version on $debarch
 185  .
 186  This is useful for people who need to build external modules
 187
 188 Package: linux-libc-dev
 189 Section: devel
 190 Provides: linux-kernel-headers
 191 Architecture: $debarch
 192 Description: Linux support headers for userspace development
 193  This package provides userspaces headers from the Linux kernel.  These headers
 194  are used by the installed headers for GNU glibc and other system libraries.
 195
 196 Package: $dbg_packagename
 197 Section: debug
 198 Architecture: $debarch
 199 Description: Linux kernel debugging symbols for $version
 200  This package will come in handy if you need to debug the kernel. It provides
 201  all the necessary debug symbols for the kernel and its modules.
 202 EOF
 203
 204 cat <<EOF > debian/rules
 205 #!$(command -v $MAKE) -f
 206
 207 build:
 208         \$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} KBUILD_SRC=
 209
 210 binary-arch:
 211         \$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} KBUILD_SRC= intdeb-pkg
 212
 213 clean:
 214         rm -rf debian/*tmp debian/files
 215         \$(MAKE) clean
 216
 217 binary: binary-arch
 218 EOF
 219
 220 exit 0