imagebuilder: copy from buildroot only target/linux/generic and target/linux/<target...

This reduces the size of a single imagebuilder by about 40MB
In example for the target ath79 it would be the sum of generic and <target> directories, so about 16MB,
instead of the whole size of the target directory, about 53MB:
11M	target/linux/generic/
3.9M	target/linux/ath79/

Signed-off-by: a-gave <agave@dracaena.it>

diff --git a/target/imagebuilder/Makefile b/target/imagebuilder/Makefile
index 3bbadc7204d1e8859cbf363ae3101b753b08422f..c3b6c9c10c586f1d560421e30d5e4288c1d670ea 100644 (file)
--- a/target/imagebuilder/Makefile
+++ b/target/imagebuilder/Makefile
@@ -27,7 +27,7 @@ all: compile
 $(BIN_DIR)/$(IB_NAME).tar.xz: clean
        rm -rf $(PKG_BUILD_DIR)
        mkdir -p $(IB_KDIR) $(IB_LDIR) $(PKG_BUILD_DIR)/staging_dir/host/lib \
-               $(PKG_BUILD_DIR)/target $(PKG_BUILD_DIR)/scripts $(IB_DTSDIR)
+               $(PKG_BUILD_DIR)/target/linux $(PKG_BUILD_DIR)/scripts $(IB_DTSDIR)
        -cp $(TOPDIR)/.config $(PKG_BUILD_DIR)/.config
        $(SED) 's/^CONFIG_BINARY_FOLDER=.*/# CONFIG_BINARY_FOLDER is not set/' $(PKG_BUILD_DIR)/.config
        $(SED) 's/^CONFIG_DOWNLOAD_FOLDER=.*/# CONFIG_DOWNLOAD_FOLDER is not set/' $(PKG_BUILD_DIR)/.config
@@ -78,7 +78,9 @@ ifneq ($(CONFIG_SIGNATURE_CHECK),)
        $(CP) -L $(STAGING_DIR_ROOT)/usr/sbin/opkg-key $(PKG_BUILD_DIR)/scripts/
 endif
 
-       $(CP) -L $(TOPDIR)/target/linux $(PKG_BUILD_DIR)/target/
+       $(CP) -L $(TOPDIR)/target/linux/Makefile $(PKG_BUILD_DIR)/target/linux
+       $(CP) -L $(TOPDIR)/target/linux/generic $(PKG_BUILD_DIR)/target/linux
+       $(CP) -L $(TOPDIR)/target/linux/$(BOARD) $(PKG_BUILD_DIR)/target/linux
        if [ -d $(TOPDIR)/staging_dir/host/lib/grub ]; then \
                $(CP) $(TOPDIR)/staging_dir/host/lib/grub/ $(PKG_BUILD_DIR)/staging_dir/host/lib; \
        fi