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 ${0} ..." >&2
  83                 echo "" >&2
  84         fi
  85 }
  86
  87 # Some variables and settings used throughout the script
  88 version=$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 extra_build_depends=", $(if_enabled_echo CONFIG_UNWINDER_ORC libelf-dev)"
 138 extra_build_depends="$extra_build_depends, $(if_enabled_echo CONFIG_SYSTEM_TRUSTED_KEYRING libssl-dev:native)"
 139
 140 # Generate a simple changelog template
 141 cat <<EOF > debian/changelog
 142 $sourcename ($packageversion) $distribution; urgency=low
 143
 144   * Custom built Linux kernel.
 145
 146  -- $maintainer  $(date -R)
 147 EOF
 148
 149 # Generate copyright file
 150 cat <<EOF > debian/copyright
 151 This is a packacked upstream version of the Linux kernel.
 152
 153 The sources may be found at most Linux archive sites, including:
 154 https://www.kernel.org/pub/linux/kernel
 155
 156 Copyright: 1991 - 2018 Linus Torvalds and others.
 157
 158 The git repository for mainline kernel development is at:
 159 git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
 160
 161     This program is free software; you can redistribute it and/or modify
 162     it under the terms of the GNU General Public License as published by
 163     the Free Software Foundation; version 2 dated June, 1991.
 164
 165 On Debian GNU/Linux systems, the complete text of the GNU General Public
 166 License version 2 can be found in \`/usr/share/common-licenses/GPL-2'.
 167 EOF
 168
 169 # Generate a control file
 170 cat <<EOF > debian/control
 171 Source: $sourcename
 172 Section: kernel
 173 Priority: optional
 174 Maintainer: $maintainer
 175 Build-Depends: bc, kmod, cpio, bison, flex | flex:native $extra_build_depends
 176 Homepage: http://www.kernel.org/
 177
 178 Package: $packagename
 179 Architecture: $debarch
 180 Description: Linux kernel, version $version
 181  This package contains the Linux kernel, modules and corresponding other
 182  files, version: $version.
 183
 184 Package: $kernel_headers_packagename
 185 Architecture: $debarch
 186 Description: Linux kernel headers for $version on $debarch
 187  This package provides kernel header files for $version on $debarch
 188  .
 189  This is useful for people who need to build external modules
 190
 191 Package: linux-libc-dev
 192 Section: devel
 193 Provides: linux-kernel-headers
 194 Architecture: $debarch
 195 Description: Linux support headers for userspace development
 196  This package provides userspaces headers from the Linux kernel.  These headers
 197  are used by the installed headers for GNU glibc and other system libraries.
 198
 199 Package: $dbg_packagename
 200 Section: debug
 201 Architecture: $debarch
 202 Description: Linux kernel debugging symbols for $version
 203  This package will come in handy if you need to debug the kernel. It provides
 204  all the necessary debug symbols for the kernel and its modules.
 205 EOF
 206
 207 cat <<EOF > debian/rules
 208 #!$(command -v $MAKE) -f
 209
 210 srctree ?= .
 211
 212 build:
 213         \$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} \
 214         KBUILD_BUILD_VERSION=${revision} -f \$(srctree)/Makefile
 215
 216 binary-arch:
 217         \$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} \
 218         KBUILD_BUILD_VERSION=${revision} -f \$(srctree)/Makefile intdeb-pkg
 219
 220 clean:
 221         rm -rf debian/*tmp debian/files
 222         \$(MAKE) clean
 223
 224 binary: binary-arch
 225 EOF
 226
 227 exit 0