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 -eu
   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 "$3"
  18         fi
  19 }
  20
  21 set_debarch() {
  22         if [ "${KBUILD_DEBARCH:+set}" ]; 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|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 # Create debian/source/ if it is a source package build
  88 gen_source ()
  89 {
  90         mkdir -p debian/source
  91
  92         echo "3.0 (quilt)" > debian/source/format
  93
  94         {
  95                 echo "diff-ignore"
  96                 echo "extend-diff-ignore = .*"
  97         } > debian/source/local-options
  98
  99         # Add .config as a patch
 100         mkdir -p debian/patches
 101         {
 102                 echo "Subject: Add .config"
 103                 echo "Author: ${maintainer}"
 104                 echo
 105                 echo "--- /dev/null"
 106                 echo "+++ linux/.config"
 107                 diff -u /dev/null "${KCONFIG_CONFIG}" | tail -n +3
 108         } > debian/patches/config.patch
 109         echo config.patch > debian/patches/series
 110
 111         "${srctree}/scripts/package/gen-diff-patch" debian/patches/diff.patch
 112         if [ -s debian/patches/diff.patch ]; then
 113                 sed -i "
 114                         1iSubject: Add local diff
 115                         1iAuthor: ${maintainer}
 116                         1i
 117                 " debian/patches/diff.patch
 118
 119                 echo diff.patch >> debian/patches/series
 120         else
 121                 rm -f debian/patches/diff.patch
 122         fi
 123 }
 124
 125 rm -rf debian
 126 mkdir debian
 127
 128 user=${KBUILD_BUILD_USER:-$(id -nu)}
 129 name=${DEBFULLNAME:-${user}}
 130 if [ "${DEBEMAIL:+set}" ]; then
 131         email=${DEBEMAIL}
 132 else
 133         buildhost=${KBUILD_BUILD_HOST:-$(hostname -f 2>/dev/null || hostname)}
 134         email="${user}@${buildhost}"
 135 fi
 136 maintainer="${name} <${email}>"
 137
 138 while [ $# -gt 0 ]; do
 139         case "$1" in
 140         --need-source)
 141                 gen_source
 142                 shift
 143                 ;;
 144         *)
 145                 break
 146                 ;;
 147         esac
 148 done
 149
 150 # Some variables and settings used throughout the script
 151 version=$KERNELRELEASE
 152 if [ "${KDEB_PKGVERSION:+set}" ]; then
 153         packageversion=$KDEB_PKGVERSION
 154 else
 155         packageversion=$(${srctree}/scripts/setlocalversion --no-local ${srctree})-$($srctree/scripts/build-version)
 156 fi
 157 sourcename=${KDEB_SOURCENAME:-linux-upstream}
 158
 159 if [ "$ARCH" = "um" ] ; then
 160         packagename=user-mode-linux
 161 else
 162         packagename=linux-image
 163 fi
 164
 165 debarch=
 166 set_debarch
 167
 168 # Try to determine distribution
 169 if [ "${KDEB_CHANGELOG_DIST:+set}" ]; then
 170         distribution=$KDEB_CHANGELOG_DIST
 171 # In some cases lsb_release returns the codename as n/a, which breaks dpkg-parsechangelog
 172 elif distribution=$(lsb_release -cs 2>/dev/null) && [ -n "$distribution" ] && [ "$distribution" != "n/a" ]; then
 173         : # nothing to do in this case
 174 else
 175         distribution="unstable"
 176         echo >&2 "Using default distribution of 'unstable' in the changelog"
 177         echo >&2 "Install lsb-release or set \$KDEB_CHANGELOG_DIST explicitly"
 178 fi
 179
 180 echo $debarch > debian/arch
 181
 182 # Generate a simple changelog template
 183 cat <<EOF > debian/changelog
 184 $sourcename ($packageversion) $distribution; urgency=low
 185
 186   * Custom built Linux kernel.
 187
 188  -- $maintainer  $(date -R)
 189 EOF
 190
 191 # Generate a control file
 192 cat <<EOF > debian/control
 193 Source: $sourcename
 194 Section: kernel
 195 Priority: optional
 196 Maintainer: $maintainer
 197 Rules-Requires-Root: no
 198 Build-Depends: debhelper-compat (= 12)
 199 Build-Depends-Arch: bc, bison, cpio, flex, kmod, libelf-dev:native, libssl-dev:native, rsync
 200 Homepage: https://www.kernel.org/
 201
 202 Package: $packagename-$version
 203 Architecture: $debarch
 204 Description: Linux kernel, version $version
 205  This package contains the Linux kernel, modules and corresponding other
 206  files, version: $version.
 207 EOF
 208
 209 if [ "${SRCARCH}" != um ]; then
 210 cat <<EOF >> debian/control
 211
 212 Package: linux-libc-dev
 213 Section: devel
 214 Provides: linux-kernel-headers
 215 Architecture: $debarch
 216 Description: Linux support headers for userspace development
 217  This package provides userspaces headers from the Linux kernel.  These headers
 218  are used by the installed headers for GNU glibc and other system libraries.
 219 Multi-Arch: same
 220 EOF
 221
 222 if is_enabled CONFIG_MODULES; then
 223 cat <<EOF >> debian/control
 224
 225 Package: linux-headers-$version
 226 Architecture: $debarch
 227 Description: Linux kernel headers for $version on $debarch
 228  This package provides kernel header files for $version on $debarch
 229  .
 230  This is useful for people who need to build external modules
 231 EOF
 232 fi
 233 fi
 234
 235 if is_enabled CONFIG_DEBUG_INFO; then
 236 cat <<EOF >> debian/control
 237
 238 Package: linux-image-$version-dbg
 239 Section: debug
 240 Architecture: $debarch
 241 Description: Linux kernel debugging symbols for $version
 242  This package will come in handy if you need to debug the kernel. It provides
 243  all the necessary debug symbols for the kernel and its modules.
 244 EOF
 245 fi
 246
 247 cat <<EOF > debian/rules.vars
 248 ARCH := ${ARCH}
 249 KERNELRELEASE := ${KERNELRELEASE}
 250 EOF
 251
 252 cp "${srctree}/scripts/package/debian/copyright" debian/
 253 cp "${srctree}/scripts/package/debian/rules" debian/
 254
 255 exit 0