Squashed 'yocto-poky/' content from commit ea562de

git-subtree-dir: yocto-poky
git-subtree-split: ea562de57590c966cd5a75fda8defecd397e6436
diff --git a/meta/classes/image-mklibs.bbclass b/meta/classes/image-mklibs.bbclass
new file mode 100644
index 0000000..c455a8e
--- /dev/null
+++ b/meta/classes/image-mklibs.bbclass
@@ -0,0 +1,71 @@
+do_rootfs[depends] += "mklibs-native:do_populate_sysroot"
+
+IMAGE_PREPROCESS_COMMAND += "mklibs_optimize_image; "
+
+mklibs_optimize_image_doit() {
+	rm -rf ${WORKDIR}/mklibs
+	mkdir -p ${WORKDIR}/mklibs/dest
+	cd ${IMAGE_ROOTFS}
+	du -bs > ${WORKDIR}/mklibs/du.before.mklibs.txt
+	for i in `find .`; do file $i; done \
+		| grep ELF \
+		| grep "LSB *executable" \
+		| grep "dynamically linked" \
+		| sed "s/:.*//" \
+		| sed "s+^\./++" \
+		> ${WORKDIR}/mklibs/executables.list
+
+	case ${TARGET_ARCH} in
+		powerpc | mips | mipsel | microblaze )
+			dynamic_loader="${base_libdir}/ld.so.1"
+			;;
+		powerpc64)
+			dynamic_loader="${base_libdir}/ld64.so.1"
+			;;
+		x86_64)
+			dynamic_loader="${base_libdir}/ld-linux-x86-64.so.2"
+			;;
+		i586 )
+			dynamic_loader="${base_libdir}/ld-linux.so.2"
+			;;
+		arm )
+			dynamic_loader="${base_libdir}/ld-linux.so.3"
+			;;
+		* )
+			dynamic_loader="/unknown_dynamic_linker"
+			;;
+	esac
+
+	mklibs -v \
+		--ldlib ${dynamic_loader} \
+		--libdir ${baselib} \
+		--sysroot ${PKG_CONFIG_SYSROOT_DIR} \
+		--gcc-options "--sysroot=${PKG_CONFIG_SYSROOT_DIR}" \
+		--root ${IMAGE_ROOTFS} \
+		--target `echo ${TARGET_PREFIX} | sed 's/-$//' ` \
+		-d ${WORKDIR}/mklibs/dest \
+		`cat ${WORKDIR}/mklibs/executables.list`
+
+	cd ${WORKDIR}/mklibs/dest
+	for i in *
+	do
+		cp $i `find ${IMAGE_ROOTFS} -name $i`
+	done
+
+	cd ${IMAGE_ROOTFS}
+	du -bs > ${WORKDIR}/mklibs/du.after.mklibs.txt
+
+	echo rootfs size before mklibs optimization: `cat ${WORKDIR}/mklibs/du.before.mklibs.txt`
+	echo rootfs size after mklibs optimization: `cat ${WORKDIR}/mklibs/du.after.mklibs.txt`
+}
+
+mklibs_optimize_image() {
+	for img in ${MKLIBS_OPTIMIZED_IMAGES}
+	do
+		if [ "${img}" = "${PN}" ] || [ "${img}" = "all" ]
+		then
+			mklibs_optimize_image_doit
+			break
+		fi
+	done
+}