#!/bin/sh
#
# Copyright 2003 Wichert Akkerman <[email protected]>
#
# Simple script to generate a debian/ directory for a Linux kernel.
set -eu
is_enabled() {
grep -q "^$1=y" include/config/auto.conf
}
if_enabled_echo() {
if is_enabled "$1"; then
echo -n "$2"
elif [ $# -ge 3 ]; then
echo -n "$3"
fi
}
set_debarch() {
if [ "${KBUILD_DEBARCH:+set}" ]; then
debarch="$KBUILD_DEBARCH"
return
fi
# Attempt to find the correct Debian architecture
case "$UTS_MACHINE" in
i386|alpha|m68k|riscv*)
debarch="$UTS_MACHINE" ;;
x86_64)
debarch=amd64 ;;
sparc*)
debarch=sparc$(if_enabled_echo CONFIG_64BIT 64) ;;
s390*)
debarch=s390x ;;
ppc*)
if is_enabled CONFIG_64BIT; then
debarch=ppc64$(if_enabled_echo CONFIG_CPU_LITTLE_ENDIAN el)
else
debarch=powerpc$(if_enabled_echo CONFIG_SPE spe)
fi
;;
parisc*)
debarch=hppa ;;
mips*)
if is_enabled CONFIG_CPU_LITTLE_ENDIAN; then
debarch=mips$(if_enabled_echo CONFIG_64BIT 64)$(if_enabled_echo CONFIG_CPU_MIPSR6 r6)el
elif is_enabled CONFIG_CPU_MIPSR6; then
debarch=mips$(if_enabled_echo CONFIG_64BIT 64)r6
else
debarch=mips
fi
;;
aarch64|arm64)
debarch=arm64 ;;
arm*)
if is_enabled CONFIG_AEABI; then
debarch=arm$(if_enabled_echo CONFIG_VFP hf el)
else
debarch=arm
fi
;;
openrisc)
debarch=or1k ;;
sh)
if is_enabled CONFIG_CPU_SH3; then
debarch=sh3$(if_enabled_echo CONFIG_CPU_BIG_ENDIAN eb)
elif is_enabled CONFIG_CPU_SH4; then
debarch=sh4$(if_enabled_echo CONFIG_CPU_BIG_ENDIAN eb)
fi
;;
esac
if [ -z "$debarch" ]; then
debarch=$(dpkg-architecture -qDEB_HOST_ARCH)
echo "" >&2
echo "** ** ** WARNING ** ** **" >&2
echo "" >&2
echo "Your architecture doesn't have its equivalent" >&2
echo "Debian userspace architecture defined!" >&2
echo "Falling back to the current host architecture ($debarch)." >&2
echo "Please add support for $UTS_MACHINE to ${0} ..." >&2
echo "" >&2
fi
}
# Create debian/source/ if it is a source package build
gen_source ()
{
mkdir -p debian/source
echo "3.0 (quilt)" > debian/source/format
{
echo "diff-ignore"
echo "extend-diff-ignore = .*"
} > debian/source/local-options
# Add .config as a patch
mkdir -p debian/patches
{
echo "Subject: Add .config"
echo "Author: ${maintainer}"
echo
echo "--- /dev/null"
echo "+++ linux/.config"
diff -u /dev/null "${KCONFIG_CONFIG}" | tail -n +3
} > debian/patches/config.patch
echo config.patch > debian/patches/series
"${srctree}/scripts/package/gen-diff-patch" debian/patches/diff.patch
if [ -s debian/patches/diff.patch ]; then
sed -i "
1iSubject: Add local diff
1iAuthor: ${maintainer}
1i
" debian/patches/diff.patch
echo diff.patch >> debian/patches/series
else
rm -f debian/patches/diff.patch
fi
}
rm -rf debian
mkdir debian
user=${KBUILD_BUILD_USER:-$(id -nu)}
name=${DEBFULLNAME:-${user}}
if [ "${DEBEMAIL:+set}" ]; then
email=${DEBEMAIL}
else
buildhost=${KBUILD_BUILD_HOST:-$(hostname -f 2>/dev/null || hostname)}
email="${user}@${buildhost}"
fi
maintainer="${name} <${email}>"
while [ $# -gt 0 ]; do
case "$1" in
--need-source)
gen_source
shift
;;
*)
break
;;
esac
done
# Some variables and settings used throughout the script
version=$KERNELRELEASE
if [ "${KDEB_PKGVERSION:+set}" ]; then
packageversion=$KDEB_PKGVERSION
else
packageversion=$(${srctree}/scripts/setlocalversion --no-local ${srctree})-$($srctree/scripts/build-version)
fi
sourcename=${KDEB_SOURCENAME:-linux-upstream}
if [ "$ARCH" = "um" ] ; then
packagename=user-mode-linux
else
packagename=linux-image
fi
debarch=
set_debarch
# Try to determine distribution
if [ "${KDEB_CHANGELOG_DIST:+set}" ]; then
distribution=$KDEB_CHANGELOG_DIST
# In some cases lsb_release returns the codename as n/a, which breaks dpkg-parsechangelog
elif distribution=$(lsb_release -cs 2>/dev/null) && [ -n "$distribution" ] && [ "$distribution" != "n/a" ]; then
: # nothing to do in this case
else
distribution="unstable"
echo >&2 "Using default distribution of 'unstable' in the changelog"
echo >&2 "Install lsb-release or set \$KDEB_CHANGELOG_DIST explicitly"
fi
echo $debarch > debian/arch
# Generate a simple changelog template
cat <<EOF > debian/changelog
$sourcename ($packageversion) $distribution; urgency=low
* Custom built Linux kernel.
-- $maintainer $(date -R)
EOF
# Generate a control file
cat <<EOF > debian/control
Source: $sourcename
Section: kernel
Priority: optional
Maintainer: $maintainer
Rules-Requires-Root: no
Build-Depends: debhelper-compat (= 12)
Build-Depends-Arch: bc, bison, cpio, flex, kmod, libelf-dev:native, libssl-dev:native, rsync
Homepage: https://www.kernel.org/
Package: $packagename-$version
Architecture: $debarch
Description: Linux kernel, version $version
This package contains the Linux kernel, modules and corresponding other
files, version: $version.
EOF
if [ "${SRCARCH}" != um ]; then
cat <<EOF >> debian/control
Package: linux-libc-dev
Section: devel
Provides: linux-kernel-headers
Architecture: $debarch
Description: Linux support headers for userspace development
This package provides userspaces headers from the Linux kernel. These headers
are used by the installed headers for GNU glibc and other system libraries.
Multi-Arch: same
EOF
if is_enabled CONFIG_MODULES; then
cat <<EOF >> debian/control
Package: linux-headers-$version
Architecture: $debarch
Description: Linux kernel headers for $version on $debarch
This package provides kernel header files for $version on $debarch
.
This is useful for people who need to build external modules
EOF
fi
fi
if is_enabled CONFIG_DEBUG_INFO; then
cat <<EOF >> debian/control
Package: linux-image-$version-dbg
Section: debug
Architecture: $debarch
Description: Linux kernel debugging symbols for $version
This package will come in handy if you need to debug the kernel. It provides
all the necessary debug symbols for the kernel and its modules.
EOF
fi
cat <<EOF > debian/rules.vars
ARCH := ${ARCH}
KERNELRELEASE := ${KERNELRELEASE}
EOF
cp "${srctree}/scripts/package/debian/copyright" debian/
cp "${srctree}/scripts/package/debian/rules" debian/
exit 0
Codebase Browser
linux