0b31f4f1f92cf5585a60706b6263a414f10e8c83
[muen/linux.git] / scripts / package / builddeb
1 #!/bin/sh
2 #
3 # builddeb 1.3
4 # Copyright 2003 Wichert Akkerman <wichert@wiggy.net>
5 #
6 # Simple script to generate a deb package for a Linux kernel. All the
7 # complexity of what to do with a kernel after it is installed or removed
8 # is left to other scripts and packages: they can install scripts in the
9 # /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.
12
13 set -e
14
15 create_package() {
16         local pname="$1" pdir="$2"
17
18         mkdir -m 755 -p "$pdir/DEBIAN"
19         mkdir -p "$pdir/usr/share/doc/$pname"
20         cp debian/copyright "$pdir/usr/share/doc/$pname/"
21         cp debian/changelog "$pdir/usr/share/doc/$pname/changelog.Debian"
22         gzip -9 "$pdir/usr/share/doc/$pname/changelog.Debian"
23         sh -c "cd '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \
24                 | xargs -r0 md5sum > DEBIAN/md5sums"
25
26         # Fix ownership and permissions
27         chown -R root:root "$pdir"
28         chmod -R go-w "$pdir"
29         # in case we are in a restrictive umask environment like 0077
30         chmod -R a+rX "$pdir"
31
32         # Create the package
33         dpkg-gencontrol -p$pname -P"$pdir"
34         dpkg --build "$pdir" ..
35 }
36
37 version=$KERNELRELEASE
38 tmpdir="$objtree/debian/tmp"
39 kernel_headers_dir="$objtree/debian/hdrtmp"
40 libc_headers_dir="$objtree/debian/headertmp"
41 dbg_dir="$objtree/debian/dbgtmp"
42 packagename=linux-image-$version
43 kernel_headers_packagename=linux-headers-$version
44 libc_headers_packagename=linux-libc-dev
45 dbg_packagename=$packagename-dbg
46
47 if [ "$ARCH" = "um" ] ; then
48         packagename=user-mode-linux-$version
49 fi
50
51 # Not all arches have the same installed path in debian
52 # XXX: have each arch Makefile export a variable of the canonical image install
53 # path instead
54 case $ARCH in
55 um)
56         installed_image_path="usr/bin/linux-$version"
57         ;;
58 parisc|mips|powerpc)
59         installed_image_path="boot/vmlinux-$version"
60         ;;
61 *)
62         installed_image_path="boot/vmlinuz-$version"
63 esac
64
65 BUILD_DEBUG="$(grep -s '^CONFIG_DEBUG_INFO=y' $KCONFIG_CONFIG || true)"
66
67 # Setup the directory structure
68 rm -rf "$tmpdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir" $objtree/debian/files
69 mkdir -m 755 -p "$tmpdir/DEBIAN"
70 mkdir -p "$tmpdir/lib" "$tmpdir/boot"
71 mkdir -p "$kernel_headers_dir/lib/modules/$version/"
72
73 # Build and install the kernel
74 if [ "$ARCH" = "um" ] ; then
75         mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin" "$tmpdir/usr/share/doc/$packagename"
76         $MAKE linux
77         cp System.map "$tmpdir/usr/lib/uml/modules/$version/System.map"
78         cp $KCONFIG_CONFIG "$tmpdir/usr/share/doc/$packagename/config"
79         gzip "$tmpdir/usr/share/doc/$packagename/config"
80 else
81         cp System.map "$tmpdir/boot/System.map-$version"
82         cp $KCONFIG_CONFIG "$tmpdir/boot/config-$version"
83 fi
84 cp "$($MAKE -s -f $srctree/Makefile image_name)" "$tmpdir/$installed_image_path"
85
86 if grep -q "^CONFIG_OF=y" $KCONFIG_CONFIG ; then
87         # Only some architectures with OF support have this target
88         if grep -q dtbs_install "${srctree}/arch/$SRCARCH/Makefile"; then
89                 $MAKE KBUILD_SRC= INSTALL_DTBS_PATH="$tmpdir/usr/lib/$packagename" dtbs_install
90         fi
91 fi
92
93 if grep -q '^CONFIG_MODULES=y' $KCONFIG_CONFIG ; then
94         INSTALL_MOD_PATH="$tmpdir" $MAKE KBUILD_SRC= modules_install
95         rm -f "$tmpdir/lib/modules/$version/build"
96         rm -f "$tmpdir/lib/modules/$version/source"
97         if [ "$ARCH" = "um" ] ; then
98                 mv "$tmpdir/lib/modules/$version"/* "$tmpdir/usr/lib/uml/modules/$version/"
99                 rmdir "$tmpdir/lib/modules/$version"
100         fi
101         if [ -n "$BUILD_DEBUG" ] ; then
102                 for module in $(find $tmpdir/lib/modules/ -name *.ko -printf '%P\n'); do
103                         module=lib/modules/$module
104                         mkdir -p $(dirname $dbg_dir/usr/lib/debug/$module)
105                         # only keep debug symbols in the debug file
106                         $OBJCOPY --only-keep-debug $tmpdir/$module $dbg_dir/usr/lib/debug/$module
107                         # strip original module from debug symbols
108                         $OBJCOPY --strip-debug $tmpdir/$module
109                         # then add a link to those
110                         $OBJCOPY --add-gnu-debuglink=$dbg_dir/usr/lib/debug/$module $tmpdir/$module
111                 done
112
113                 # resign stripped modules
114                 MODULE_SIG_ALL="$(grep -s '^CONFIG_MODULE_SIG_ALL=y' $KCONFIG_CONFIG || true)"
115                 if [ -n "$MODULE_SIG_ALL" ]; then
116                         INSTALL_MOD_PATH="$tmpdir" $MAKE KBUILD_SRC= modules_sign
117                 fi
118         fi
119 fi
120
121 if [ "$ARCH" != "um" ]; then
122         $MAKE headers_check KBUILD_SRC=
123         $MAKE headers_install KBUILD_SRC= INSTALL_HDR_PATH="$libc_headers_dir/usr"
124 fi
125
126 # Install the maintainer scripts
127 # Note: hook scripts under /etc/kernel are also executed by official Debian
128 # kernel packages, as well as kernel packages built using make-kpkg.
129 # make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and
130 # so do we; recent versions of dracut and initramfs-tools will obey this.
131 debhookdir=${KDEB_HOOKDIR:-/etc/kernel}
132 if grep -q '^CONFIG_BLK_DEV_INITRD=y' $KCONFIG_CONFIG; then
133         want_initrd=Yes
134 else
135         want_initrd=No
136 fi
137 for script in postinst postrm preinst prerm ; do
138         mkdir -p "$tmpdir$debhookdir/$script.d"
139         cat <<EOF > "$tmpdir/DEBIAN/$script"
140 #!/bin/sh
141
142 set -e
143
144 # Pass maintainer script parameters to hook scripts
145 export DEB_MAINT_PARAMS="\$*"
146
147 # Tell initramfs builder whether it's wanted
148 export INITRD=$want_initrd
149
150 test -d $debhookdir/$script.d && run-parts --arg="$version" --arg="/$installed_image_path" $debhookdir/$script.d
151 exit 0
152 EOF
153         chmod 755 "$tmpdir/DEBIAN/$script"
154 done
155
156 # Build kernel header package
157 (cd $srctree; find . -name Makefile\* -o -name Kconfig\* -o -name \*.pl) > "$objtree/debian/hdrsrcfiles"
158 (cd $srctree; find arch/*/include include scripts -type f -o -type l) >> "$objtree/debian/hdrsrcfiles"
159 (cd $srctree; find arch/$SRCARCH -name module.lds -o -name Kbuild.platforms -o -name Platform) >> "$objtree/debian/hdrsrcfiles"
160 (cd $srctree; find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f) >> "$objtree/debian/hdrsrcfiles"
161 if grep -q '^CONFIG_STACK_VALIDATION=y' $KCONFIG_CONFIG ; then
162         (cd $objtree; find tools/objtool -type f -executable) >> "$objtree/debian/hdrobjfiles"
163 fi
164 (cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f) >> "$objtree/debian/hdrobjfiles"
165 if grep -q '^CONFIG_GCC_PLUGINS=y' $KCONFIG_CONFIG ; then
166         (cd $objtree; find scripts/gcc-plugins -name \*.so -o -name gcc-common.h) >> "$objtree/debian/hdrobjfiles"
167 fi
168 destdir=$kernel_headers_dir/usr/src/linux-headers-$version
169 mkdir -p "$destdir"
170 (cd $srctree; tar -c -f - -T -) < "$objtree/debian/hdrsrcfiles" | (cd $destdir; tar -xf -)
171 (cd $objtree; tar -c -f - -T -) < "$objtree/debian/hdrobjfiles" | (cd $destdir; tar -xf -)
172 (cd $objtree; cp $KCONFIG_CONFIG $destdir/.config) # copy .config manually to be where it's expected to be
173 ln -sf "/usr/src/linux-headers-$version" "$kernel_headers_dir/lib/modules/$version/build"
174 rm -f "$objtree/debian/hdrsrcfiles" "$objtree/debian/hdrobjfiles"
175
176 if [ "$ARCH" != "um" ]; then
177         create_package "$kernel_headers_packagename" "$kernel_headers_dir"
178         create_package "$libc_headers_packagename" "$libc_headers_dir"
179 fi
180
181 create_package "$packagename" "$tmpdir"
182
183 if [ -n "$BUILD_DEBUG" ] ; then
184         # Build debug package
185         # Different tools want the image in different locations
186         # perf
187         mkdir -p $dbg_dir/usr/lib/debug/lib/modules/$version/
188         cp vmlinux $dbg_dir/usr/lib/debug/lib/modules/$version/
189         # systemtap
190         mkdir -p $dbg_dir/usr/lib/debug/boot/
191         ln -s ../lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/boot/vmlinux-$version
192         # kdump-tools
193         ln -s lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/vmlinux-$version
194         create_package "$dbg_packagename" "$dbg_dir"
195 fi
196
197 exit 0