builddeb: update for armv8

Signed-off-by: Anders Roxell <anders.roxell@linaro.org>

1 files changed, 134 insertions, 54 deletions

diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index acb86507828a..e3429198853e 100644
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -12,6 +12,47 @@
 
 set -e
 
+# Attempt to find the correct Debian architecture
+forcearch=""
+debarch=""
+case "$UTS_MACHINE" in
+i386|ia64|alpha)
+	debarch="$UTS_MACHINE" ;;
+x86_64)
+	debarch=amd64 ;;
+sparc*)
+	debarch=sparc ;;
+s390*)
+	debarch=s390 ;;
+ppc*)
+	debarch=powerpc ;;
+parisc*)
+	debarch=hppa ;;
+mips*)
+	debarch=mips$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo el) ;;
+arm*)
+	if grep -q '^CONFIG_ARM64=y' $KCONFIG_CONFIG ; then
+		debarch=arm64
+	else
+		debarch=arm$(grep -q CONFIG_AEABI=y $KCONFIG_CONFIG && echo el)
+	fi ;;
+*)
+	echo "" >&2
+	echo "** ** **  WARNING  ** ** **" >&2
+	echo "" >&2
+	echo "Your architecture doesn't have it's equivalent" >&2
+	echo "Debian userspace architecture defined!" >&2
+	echo "Falling back to using your current userspace instead!" >&2
+	echo "Please add support for $UTS_MACHINE to ${0} ..." >&2
+	echo "" >&2
+esac
+if [ -n "$KBUILD_DEBARCH" ] ; then
+	debarch="$KBUILD_DEBARCH"
+fi
+if [ -n "$debarch" ] ; then
+	forcearch="-DArchitecture=$debarch"
+fi
+
 create_package() {
 	local pname="$1" pdir="$2"
 
@@ -25,42 +66,6 @@ create_package() {
 	chown -R root:root "$pdir"
 	chmod -R go-w "$pdir"
 
-	# Attempt to find the correct Debian architecture
-	local forcearch="" debarch=""
-	case "$UTS_MACHINE" in
-	i386|ia64|alpha)
-		debarch="$UTS_MACHINE" ;;
-	x86_64)
-		debarch=amd64 ;;
-	sparc*)
-		debarch=sparc ;;
-	s390*)
-		debarch=s390 ;;
-	ppc*)
-		debarch=powerpc ;;
-	parisc*)
-		debarch=hppa ;;
-	mips*)
-		debarch=mips$(grep -q CPU_LITTLE_ENDIAN=y .config && echo el) ;;
-	arm*)
-		debarch=arm$(grep -q CONFIG_AEABI=y .config && echo el) ;;
-	*)
-		echo "" >&2
-		echo "** ** **  WARNING  ** ** **" >&2
-		echo "" >&2
-		echo "Your architecture doesn't have it's equivalent" >&2
-		echo "Debian userspace architecture defined!" >&2
-		echo "Falling back to using your current userspace instead!" >&2
-		echo "Please add support for $UTS_MACHINE to ${0} ..." >&2
-		echo "" >&2
-	esac
-	if [ -n "$KBUILD_DEBARCH" ] ; then
-		debarch="$KBUILD_DEBARCH"
-	fi
-	if [ -n "$debarch" ] ; then
-		forcearch="-DArchitecture=$debarch"
-	fi
-
 	# Create the package
 	dpkg-gencontrol -isp $forcearch -p$pname -P"$pdir"
 	dpkg --build "$pdir" ..
@@ -78,17 +83,38 @@ tmpdir="$objtree/debian/tmp"
 fwdir="$objtree/debian/fwtmp"
 kernel_headers_dir="$objtree/debian/hdrtmp"
 libc_headers_dir="$objtree/debian/headertmp"
+dbg_dir="$objtree/debian/dbgtmp"
 packagename=linux-image-$version
-fwpackagename=linux-firmware-image
+fwpackagename=linux-firmware-image-$version
 kernel_headers_packagename=linux-headers-$version
 libc_headers_packagename=linux-libc-dev
+dbg_packagename=$packagename-dbg
 
 if [ "$ARCH" = "um" ] ; then
 	packagename=user-mode-linux-$version
 fi
 
+# Not all arches have the same installed path in debian
+# XXX: have each arch Makefile export a variable of the canonical image install
+# path instead
+case $ARCH in
+um)
+	installed_image_path="usr/bin/linux-$version"
+	;;
+parisc|mips|powerpc)
+	installed_image_path="boot/vmlinux-$version"
+	;;
+arm64)
+	installed_image_path="boot/Image-$version"
+	;;
+*)
+	installed_image_path="boot/vmlinuz-$version"
+esac
+
+BUILD_DEBUG="$(grep -s '^CONFIG_DEBUG_INFO=y' $KCONFIG_CONFIG || true)"
+
 # Setup the directory structure
-rm -rf "$tmpdir" "$fwdir" "$kernel_headers_dir" "$libc_headers_dir"
+rm -rf "$tmpdir" "$fwdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir"
 mkdir -m 755 -p "$tmpdir/DEBIAN"
 mkdir -p  "$tmpdir/lib" "$tmpdir/boot" "$tmpdir/usr/share/doc/$packagename"
 mkdir -m 755 -p "$fwdir/DEBIAN"
@@ -101,26 +127,29 @@ mkdir -p "$kernel_headers_dir/lib/modules/$version/"
 if [ "$ARCH" = "um" ] ; then
 	mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin"
 fi
+if [ -n "$BUILD_DEBUG" ] ; then
+	mkdir -p "$dbg_dir/usr/share/doc/$dbg_packagename"
+	mkdir -m 755 -p "$dbg_dir/DEBIAN"
+fi
 
 # Build and install the kernel
 if [ "$ARCH" = "um" ] ; then
 	$MAKE linux
 	cp System.map "$tmpdir/usr/lib/uml/modules/$version/System.map"
-	cp .config "$tmpdir/usr/share/doc/$packagename/config"
+	cp $KCONFIG_CONFIG "$tmpdir/usr/share/doc/$packagename/config"
 	gzip "$tmpdir/usr/share/doc/$packagename/config"
-	cp $KBUILD_IMAGE "$tmpdir/usr/bin/linux-$version"
 else 
 	cp System.map "$tmpdir/boot/System.map-$version"
-	cp .config "$tmpdir/boot/config-$version"
-	# Not all arches include the boot path in KBUILD_IMAGE
-	if [ -e $KBUILD_IMAGE ]; then
-		cp $KBUILD_IMAGE "$tmpdir/boot/vmlinuz-$version"
-	else
-		cp arch/$ARCH/boot/$KBUILD_IMAGE "$tmpdir/boot/vmlinuz-$version"
-	fi
+	cp $KCONFIG_CONFIG "$tmpdir/boot/config-$version"
+fi
+# Not all arches include the boot path in KBUILD_IMAGE
+if [ -e $KBUILD_IMAGE ]; then
+	cp $KBUILD_IMAGE "$tmpdir/$installed_image_path"
+else
+	cp arch/$ARCH/boot/$KBUILD_IMAGE "$tmpdir/$installed_image_path"
 fi
 
-if grep -q '^CONFIG_MODULES=y' .config ; then
+if grep -q '^CONFIG_MODULES=y' $KCONFIG_CONFIG ; then
 	INSTALL_MOD_PATH="$tmpdir" $MAKE KBUILD_SRC= modules_install
 	rm -f "$tmpdir/lib/modules/$version/build"
 	rm -f "$tmpdir/lib/modules/$version/source"
@@ -128,6 +157,20 @@ if grep -q '^CONFIG_MODULES=y' .config ; then
 		mv "$tmpdir/lib/modules/$version"/* "$tmpdir/usr/lib/uml/modules/$version/"
 		rmdir "$tmpdir/lib/modules/$version"
 	fi
+	if [ -n "$BUILD_DEBUG" ] ; then
+		(
+			cd $tmpdir
+			for module in $(find lib/modules/ -name *.ko); do
+				mkdir -p $(dirname $dbg_dir/usr/lib/debug/$module)
+				# only keep debug symbols in the debug file
+				$OBJCOPY --only-keep-debug $module $dbg_dir/usr/lib/debug/$module
+				# strip original module from debug symbols
+				$OBJCOPY --strip-debug $module
+				# then add a link to those
+				$OBJCOPY --add-gnu-debuglink=$dbg_dir/usr/lib/debug/$module $module
+			done
+		)
+	fi
 fi
 
 if [ "$ARCH" != "um" ]; then
@@ -149,7 +192,7 @@ set -e
 # Pass maintainer script parameters to hook scripts
 export DEB_MAINT_PARAMS="\$*"
 
-test -d $debhookdir/$script.d && run-parts --arg="$version" $debhookdir/$script.d
+test -d $debhookdir/$script.d && run-parts --arg="$version" --arg="/$installed_image_path" $debhookdir/$script.d
 exit 0
 EOF
 	chmod 755 "$tmpdir/DEBIAN/$script"
@@ -245,22 +288,22 @@ fi
 # Build header package
 (cd $srctree; find . -name Makefile\* -o -name Kconfig\* -o -name \*.pl > "$objtree/debian/hdrsrcfiles")
 (cd $srctree; find arch/$SRCARCH/include include scripts -type f >> "$objtree/debian/hdrsrcfiles")
-(cd $objtree; find arch/$SRCARCH/include .config Module.symvers include scripts -type f >> "$objtree/debian/hdrobjfiles")
+(cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f >> "$objtree/debian/hdrobjfiles")
 destdir=$kernel_headers_dir/usr/src/linux-headers-$version
 mkdir -p "$destdir"
 (cd $srctree; tar -c -f - -T "$objtree/debian/hdrsrcfiles") | (cd $destdir; tar -xf -)
 (cd $objtree; tar -c -f - -T "$objtree/debian/hdrobjfiles") | (cd $destdir; tar -xf -)
+(cd $objtree; cp $KCONFIG_CONFIG $destdir/.config) # copy .config manually to be where it's expected to be
 ln -sf "/usr/src/linux-headers-$version" "$kernel_headers_dir/lib/modules/$version/build"
 rm -f "$objtree/debian/hdrsrcfiles" "$objtree/debian/hdrobjfiles"
-arch=$(dpkg --print-architecture)
 
 cat <<EOF >> debian/control
 
 Package: $kernel_headers_packagename
 Provides: linux-headers, linux-headers-2.6
-Architecture: $arch
-Description: Linux kernel headers for $KERNELRELEASE on $arch
- This package provides kernel header files for $KERNELRELEASE on $arch
+Architecture: $debarch
+Description: Linux kernel headers for $KERNELRELEASE on $debarch
+ This package provides kernel header files for $KERNELRELEASE on $debarch
  .
  This is useful for people who need to build external modules
 EOF
@@ -281,6 +324,17 @@ EOF
 	create_package "$fwpackagename" "$fwdir"
 fi
 
+# Copy device tree files if generated
+stat arch/$ARCH/boot/dts/*.dtb && {
+	mkdir -p "$tmpdir/lib/firmware/$version/device-tree"
+	cp arch/$ARCH/boot/dts/*.dtb "$tmpdir/lib/firmware/$version/device-tree"
+}
+
+# Copy boot wrapper files if built
+if [ "$ARCH" = "arm64" ] ; then
+	stat arch/arm64/boot/*.axf && cp arch/arm64/boot/*.axf "$tmpdir/boot"
+fi
+
 cat <<EOF >> debian/control
 
 Package: $libc_headers_packagename
@@ -299,4 +353,30 @@ fi
 
 create_package "$packagename" "$tmpdir"
 
+if [ -n "$BUILD_DEBUG" ] ; then
+	# Build debug package
+	# Different tools want the image in different locations
+	# perf
+	mkdir -p $dbg_dir/usr/lib/debug/lib/modules/$version/
+	cp vmlinux $dbg_dir/usr/lib/debug/lib/modules/$version/
+	# systemtap
+	mkdir -p $dbg_dir/usr/lib/debug/boot/
+	ln -s ../lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/boot/vmlinux-$version
+	# kdump-tools
+	ln -s lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/vmlinux-$version
+
+	cat <<EOF >> debian/control
+
+Package: $dbg_packagename
+Section: debug
+Provides: linux-debug, linux-debug-$version
+Architecture: any
+Description: Linux kernel debugging symbols for $version
+ This package will come in handy if you need to debug the kernel. It provides
+ all the necessary debug symbols for the kernel and its modules.
+EOF
+
+	create_package "$dbg_packagename" "$dbg_dir"
+fi
+
 exit 0