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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#!/bin/sh
2#
Frans Pop49644512009-04-23 01:09:25 +02003# builddeb 1.3
Linus Torvalds1da177e2005-04-16 15:20:36 -07004# Copyright 2003 Wichert Akkerman <wichert@wiggy.net>
5#
6# Simple script to generate a deb package for a Linux kernel. All the
Frans Pop4f661992009-04-23 01:08:31 +02007# complexity of what to do with a kernel after it is installed or removed
Linus Torvalds1da177e2005-04-16 15:20:36 -07008# is left to other scripts and packages: they can install scripts in the
Frans Popfe233cb2009-04-23 01:10:10 +02009# /etc/kernel/{pre,post}{inst,rm}.d/ directories (or an alternative location
10# specified in KDEB_HOOKDIR) that will be called on package install and
11# removal.
Linus Torvalds1da177e2005-04-16 15:20:36 -070012
13set -e
14
Masahiro Yamada515f4c62019-03-08 18:56:24 +090015is_enabled() {
Masahiro Yamada6fb7ef52019-03-08 18:56:25 +090016 grep -q "^$1=y" include/config/auto.conf
Masahiro Yamada515f4c62019-03-08 18:56:24 +090017}
18
19if_enabled_echo() {
20 if is_enabled "$1"; then
21 echo -n "$2"
22 elif [ $# -ge 3 ]; then
23 echo -n "$3"
24 fi
25}
26
Frans Pop3e2ab252009-04-23 01:08:44 +020027create_package() {
28 local pname="$1" pdir="$2"
29
Riku Voipiobf7b0052015-05-28 12:11:14 +030030 mkdir -m 755 -p "$pdir/DEBIAN"
31 mkdir -p "$pdir/usr/share/doc/$pname"
Frans Pop9461f662009-04-24 19:08:24 +020032 cp debian/copyright "$pdir/usr/share/doc/$pname/"
maximilian attems1ab18482009-06-26 20:04:36 +020033 cp debian/changelog "$pdir/usr/share/doc/$pname/changelog.Debian"
34 gzip -9 "$pdir/usr/share/doc/$pname/changelog.Debian"
FEJES Jozsefb59a1222010-03-05 18:19:36 +010035 sh -c "cd '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \
36 | xargs -r0 md5sum > DEBIAN/md5sums"
Frans Pop9461f662009-04-24 19:08:24 +020037
Frans Pop3e2ab252009-04-23 01:08:44 +020038 # Fix ownership and permissions
39 chown -R root:root "$pdir"
40 chmod -R go-w "$pdir"
Henning Schildca617dc2016-07-22 14:46:52 +020041 # in case we are in a restrictive umask environment like 0077
42 chmod -R a+rX "$pdir"
Frans Pop3e2ab252009-04-23 01:08:44 +020043
Riku Voipiodca0c022015-04-16 16:42:46 +030044 # Create the package
Riku Voipiob41d9202018-04-05 14:22:29 +030045 dpkg-gencontrol -p$pname -P"$pdir"
Riku Voipiodca0c022015-04-16 16:42:46 +030046 dpkg --build "$pdir" ..
47}
48
Linus Torvalds1da177e2005-04-16 15:20:36 -070049version=$KERNELRELEASE
50tmpdir="$objtree/debian/tmp"
maximilian attemsee81b782011-01-07 16:13:06 +010051kernel_headers_dir="$objtree/debian/hdrtmp"
52libc_headers_dir="$objtree/debian/headertmp"
Anisse Astier810e8432013-07-03 16:02:04 +020053dbg_dir="$objtree/debian/dbgtmp"
maximilian attemsf7a2c312009-04-23 01:12:01 +020054packagename=linux-image-$version
maximilian attemsee81b782011-01-07 16:13:06 +010055kernel_headers_packagename=linux-headers-$version
56libc_headers_packagename=linux-libc-dev
Anisse Astier810e8432013-07-03 16:02:04 +020057dbg_packagename=$packagename-dbg
Sam Ravnborg687c3da2005-07-14 20:24:00 +000058
Frans Pop4f661992009-04-23 01:08:31 +020059if [ "$ARCH" = "um" ] ; then
Sam Ravnborg687c3da2005-07-14 20:24:00 +000060 packagename=user-mode-linux-$version
61fi
Linus Torvalds1da177e2005-04-16 15:20:36 -070062
Anisse Astier9de70172013-07-03 16:02:05 +020063# Not all arches have the same installed path in debian
64# XXX: have each arch Makefile export a variable of the canonical image install
65# path instead
66case $ARCH in
67um)
68 installed_image_path="usr/bin/linux-$version"
69 ;;
70parisc|mips|powerpc)
71 installed_image_path="boot/vmlinux-$version"
72 ;;
73*)
74 installed_image_path="boot/vmlinuz-$version"
75esac
76
Masahiro Yamada515f4c62019-03-08 18:56:24 +090077BUILD_DEBUG=$(if_enabled_echo CONFIG_DEBUG_INFO Yes)
Anisse Astier810e8432013-07-03 16:02:04 +020078
Linus Torvalds1da177e2005-04-16 15:20:36 -070079# Setup the directory structure
Masahiro Yamadacc18abb2017-09-18 18:22:19 +090080rm -rf "$tmpdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir" $objtree/debian/files
maximilian attemse86c2412010-10-29 15:55:50 +020081mkdir -m 755 -p "$tmpdir/DEBIAN"
Riku Voipiobf7b0052015-05-28 12:11:14 +030082mkdir -p "$tmpdir/lib" "$tmpdir/boot"
Joerg Roedela47b6c62012-02-15 17:38:26 +010083mkdir -p "$kernel_headers_dir/lib/modules/$version/"
Linus Torvalds1da177e2005-04-16 15:20:36 -070084
85# Build and install the kernel
Frans Pop4f661992009-04-23 01:08:31 +020086if [ "$ARCH" = "um" ] ; then
Riku Voipiobf7b0052015-05-28 12:11:14 +030087 mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin" "$tmpdir/usr/share/doc/$packagename"
Sam Ravnborg687c3da2005-07-14 20:24:00 +000088 $MAKE linux
89 cp System.map "$tmpdir/usr/lib/uml/modules/$version/System.map"
Anisse Astierd2091762013-07-03 16:02:03 +020090 cp $KCONFIG_CONFIG "$tmpdir/usr/share/doc/$packagename/config"
Sam Ravnborg687c3da2005-07-14 20:24:00 +000091 gzip "$tmpdir/usr/share/doc/$packagename/config"
Masahiro Yamada38385f82014-04-28 16:26:18 +090092else
Sam Ravnborg687c3da2005-07-14 20:24:00 +000093 cp System.map "$tmpdir/boot/System.map-$version"
Anisse Astierd2091762013-07-03 16:02:03 +020094 cp $KCONFIG_CONFIG "$tmpdir/boot/config-$version"
Anisse Astier9de70172013-07-03 16:02:05 +020095fi
Masahiro Yamada02826a62018-11-05 16:52:34 +090096cp "$($MAKE -s -f $srctree/Makefile image_name)" "$tmpdir/$installed_image_path"
Linus Torvalds1da177e2005-04-16 15:20:36 -070097
Masahiro Yamada515f4c62019-03-08 18:56:24 +090098if is_enabled CONFIG_OF_EARLY_FLATTREE; then
Arnaud Patard (Rtp)ca2a9d22015-02-03 13:16:33 +010099 # Only some architectures with OF support have this target
Rob Herringd5615e42018-11-07 08:36:46 -0600100 if [ -d "${srctree}/arch/$SRCARCH/boot/dts" ]; then
Masahiro Yamada175209c2019-02-14 12:05:14 +0900101 $MAKE -f $srctree/Makefile INSTALL_DTBS_PATH="$tmpdir/usr/lib/$packagename" dtbs_install
Arnaud Patard (Rtp)ca2a9d22015-02-03 13:16:33 +0100102 fi
103fi
104
Masahiro Yamada515f4c62019-03-08 18:56:24 +0900105if is_enabled CONFIG_MODULES; then
Masahiro Yamada175209c2019-02-14 12:05:14 +0900106 INSTALL_MOD_PATH="$tmpdir" $MAKE -f $srctree/Makefile modules_install
Joerg Roedela47b6c62012-02-15 17:38:26 +0100107 rm -f "$tmpdir/lib/modules/$version/build"
108 rm -f "$tmpdir/lib/modules/$version/source"
Frans Pop4f661992009-04-23 01:08:31 +0200109 if [ "$ARCH" = "um" ] ; then
Sam Ravnborg687c3da2005-07-14 20:24:00 +0000110 mv "$tmpdir/lib/modules/$version"/* "$tmpdir/usr/lib/uml/modules/$version/"
111 rmdir "$tmpdir/lib/modules/$version"
112 fi
Anisse Astier810e8432013-07-03 16:02:04 +0200113 if [ -n "$BUILD_DEBUG" ] ; then
Michal Marek2d087132014-08-22 15:51:03 +0200114 for module in $(find $tmpdir/lib/modules/ -name *.ko -printf '%P\n'); do
115 module=lib/modules/$module
116 mkdir -p $(dirname $dbg_dir/usr/lib/debug/$module)
117 # only keep debug symbols in the debug file
118 $OBJCOPY --only-keep-debug $tmpdir/$module $dbg_dir/usr/lib/debug/$module
119 # strip original module from debug symbols
120 $OBJCOPY --strip-debug $tmpdir/$module
121 # then add a link to those
122 $OBJCOPY --add-gnu-debuglink=$dbg_dir/usr/lib/debug/$module $tmpdir/$module
123 done
Andrey Skvortsov64178cb2015-03-16 11:20:54 +0300124
125 # resign stripped modules
Masahiro Yamada515f4c62019-03-08 18:56:24 +0900126 if is_enabled CONFIG_MODULE_SIG_ALL; then
Masahiro Yamada175209c2019-02-14 12:05:14 +0900127 INSTALL_MOD_PATH="$tmpdir" $MAKE -f $srctree/Makefile modules_sign
Andrey Skvortsov64178cb2015-03-16 11:20:54 +0300128 fi
Anisse Astier810e8432013-07-03 16:02:04 +0200129 fi
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130fi
131
Joerg Roedeld7d357b2012-02-15 17:38:27 +0100132if [ "$ARCH" != "um" ]; then
Masahiro Yamada0315bb72019-06-04 19:14:06 +0900133 $MAKE -f $srctree/Makefile headers
Masahiro Yamada175209c2019-02-14 12:05:14 +0900134 $MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH="$libc_headers_dir/usr"
Cedric Hombourger5a464212019-07-09 09:43:35 +0200135 # move asm headers to /usr/include/<libc-machine>/asm to match the structure
136 # used by Debian-based distros (to support multi-arch)
137 host_arch=$(dpkg-architecture -a$(cat debian/arch) -qDEB_HOST_MULTIARCH)
138 mkdir $libc_headers_dir/usr/include/$host_arch
139 mv $libc_headers_dir/usr/include/asm $libc_headers_dir/usr/include/$host_arch/
Joerg Roedeld7d357b2012-02-15 17:38:27 +0100140fi
maximilian attemse6807782011-01-01 16:44:13 +0100141
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142# Install the maintainer scripts
Frans Popfe233cb2009-04-23 01:10:10 +0200143# Note: hook scripts under /etc/kernel are also executed by official Debian
Ben Hutchings1c8ddae2013-11-15 03:03:25 +0000144# kernel packages, as well as kernel packages built using make-kpkg.
145# make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and
146# so do we; recent versions of dracut and initramfs-tools will obey this.
Frans Popfe233cb2009-04-23 01:10:10 +0200147debhookdir=${KDEB_HOOKDIR:-/etc/kernel}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148for script in postinst postrm preinst prerm ; do
Frans Popfe233cb2009-04-23 01:10:10 +0200149 mkdir -p "$tmpdir$debhookdir/$script.d"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150 cat <<EOF > "$tmpdir/DEBIAN/$script"
151#!/bin/sh
152
153set -e
154
Frans Pop49644512009-04-23 01:09:25 +0200155# Pass maintainer script parameters to hook scripts
maximilian attems241ad112009-07-05 20:17:34 +0200156export DEB_MAINT_PARAMS="\$*"
Frans Pop49644512009-04-23 01:09:25 +0200157
Ben Hutchings1c8ddae2013-11-15 03:03:25 +0000158# Tell initramfs builder whether it's wanted
Masahiro Yamada515f4c62019-03-08 18:56:24 +0900159export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No)
Ben Hutchings1c8ddae2013-11-15 03:03:25 +0000160
Anisse Astierc95182b2013-07-03 16:02:06 +0200161test -d $debhookdir/$script.d && run-parts --arg="$version" --arg="/$installed_image_path" $debhookdir/$script.d
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162exit 0
163EOF
164 chmod 755 "$tmpdir/DEBIAN/$script"
165done
166
Fathi Boudra8bf13562014-04-15 14:51:48 +0300167# Build kernel header package
Michal Mareka765a7c2014-06-16 16:11:29 +0200168(cd $srctree; find . -name Makefile\* -o -name Kconfig\* -o -name \*.pl) > "$objtree/debian/hdrsrcfiles"
Jan Kiszkaf8437522018-03-21 13:15:28 +0800169(cd $srctree; find arch/*/include include scripts -type f -o -type l) >> "$objtree/debian/hdrsrcfiles"
Fathi Boudra8bf13562014-04-15 14:51:48 +0300170(cd $srctree; find arch/$SRCARCH -name module.lds -o -name Kbuild.platforms -o -name Platform) >> "$objtree/debian/hdrsrcfiles"
171(cd $srctree; find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f) >> "$objtree/debian/hdrsrcfiles"
Masahiro Yamada515f4c62019-03-08 18:56:24 +0900172if is_enabled CONFIG_STACK_VALIDATION; then
Wilfried Klaebe15f6d3372016-06-28 12:21:33 +0000173 (cd $objtree; find tools/objtool -type f -executable) >> "$objtree/debian/hdrobjfiles"
174fi
Michal Mareka765a7c2014-06-16 16:11:29 +0200175(cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f) >> "$objtree/debian/hdrobjfiles"
Masahiro Yamada515f4c62019-03-08 18:56:24 +0900176if is_enabled CONFIG_GCC_PLUGINS; then
Kees Cookd3e27732016-08-15 10:36:22 -0700177 (cd $objtree; find scripts/gcc-plugins -name \*.so -o -name gcc-common.h) >> "$objtree/debian/hdrobjfiles"
178fi
maximilian attemsee81b782011-01-07 16:13:06 +0100179destdir=$kernel_headers_dir/usr/src/linux-headers-$version
180mkdir -p "$destdir"
Michal Mareka765a7c2014-06-16 16:11:29 +0200181(cd $srctree; tar -c -f - -T -) < "$objtree/debian/hdrsrcfiles" | (cd $destdir; tar -xf -)
182(cd $objtree; tar -c -f - -T -) < "$objtree/debian/hdrobjfiles" | (cd $destdir; tar -xf -)
Anisse Astierd2091762013-07-03 16:02:03 +0200183(cd $objtree; cp $KCONFIG_CONFIG $destdir/.config) # copy .config manually to be where it's expected to be
Joerg Roedela47b6c62012-02-15 17:38:26 +0100184ln -sf "/usr/src/linux-headers-$version" "$kernel_headers_dir/lib/modules/$version/build"
Ben Hutchings6c635222012-02-15 14:17:29 +0000185rm -f "$objtree/debian/hdrsrcfiles" "$objtree/debian/hdrobjfiles"
Theodore Ts'ocd8d60a2010-12-24 09:42:10 -0500186
Joerg Roedeld7d357b2012-02-15 17:38:27 +0100187if [ "$ARCH" != "um" ]; then
188 create_package "$kernel_headers_packagename" "$kernel_headers_dir"
189 create_package "$libc_headers_packagename" "$libc_headers_dir"
190fi
191
Frans Pop3e2ab252009-04-23 01:08:44 +0200192create_package "$packagename" "$tmpdir"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193
Anisse Astier810e8432013-07-03 16:02:04 +0200194if [ -n "$BUILD_DEBUG" ] ; then
195 # Build debug package
196 # Different tools want the image in different locations
197 # perf
198 mkdir -p $dbg_dir/usr/lib/debug/lib/modules/$version/
199 cp vmlinux $dbg_dir/usr/lib/debug/lib/modules/$version/
200 # systemtap
201 mkdir -p $dbg_dir/usr/lib/debug/boot/
202 ln -s ../lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/boot/vmlinux-$version
203 # kdump-tools
204 ln -s lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/vmlinux-$version
Anisse Astier810e8432013-07-03 16:02:04 +0200205 create_package "$dbg_packagename" "$dbg_dir"
206fi
207
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208exit 0