build: move rootfs processing code to include/rootfs.mk so it can be reused later

Signed-off-by: Felix Fietkau <nbd@nbd.name>

include/rootfs.mk

+include $(INCLUDE_DIR)/feeds.mk
+
+ifdef CONFIG_USE_MKLIBS
+  define mklibs
+	rm -rf $(TMP_DIR)/mklibs-progs $(TMP_DIR)/mklibs-out
+	# first find all programs and add them to the mklibs list
+	find $(STAGING_DIR_ROOT) -type f -perm /100 -exec \
+		file -r -N -F '' {} + | \
+		awk ' /executable.*dynamically/ { print $$1 }' > $(TMP_DIR)/mklibs-progs
+	# find all loadable objects that are not regular libraries and add them to the list as well
+	find $(STAGING_DIR_ROOT) -type f -name \*.so\* -exec \
+		file -r -N -F '' {} + | \
+		awk ' /shared object/ { print $$1 }' > $(TMP_DIR)/mklibs-libs
+	mkdir -p $(TMP_DIR)/mklibs-out
+	$(STAGING_DIR_HOST)/bin/mklibs -D \
+		-d $(TMP_DIR)/mklibs-out \
+		--sysroot $(STAGING_DIR_ROOT) \
+		`cat $(TMP_DIR)/mklibs-libs | sed 's:/*[^/]\+/*$$::' | uniq | sed 's:^$(STAGING_DIR_ROOT):-L :'` \
+		--ldlib $(patsubst $(STAGING_DIR_ROOT)/%,/%,$(firstword $(wildcard \
+			$(foreach name,ld-uClibc.so.* ld-linux.so.* ld-*.so ld-musl-*.so.*, \
+			  $(STAGING_DIR_ROOT)/lib/$(name) \
+			)))) \
+		--target $(REAL_GNU_TARGET_NAME) \
+		`cat $(TMP_DIR)/mklibs-progs $(TMP_DIR)/mklibs-libs` 2>&1
+	$(RSTRIP) $(TMP_DIR)/mklibs-out
+	for lib in `ls $(TMP_DIR)/mklibs-out/*.so.* 2>/dev/null`; do \
+		LIB="$${lib##*/}"; \
+		DEST="`ls "$(TARGET_DIR)/lib/$$LIB" "$(TARGET_DIR)/usr/lib/$$LIB" 2>/dev/null`"; \
+		[ -n "$$DEST" ] || continue; \
+		echo "Copying stripped library $$lib to $$DEST"; \
+		cp "$$lib" "$$DEST" || exit 1; \
+	done
+  endef
+endif
+
+# where to build (and put) .ipk packages
+OPKG:= \
+  IPKG_NO_SCRIPT=1 \
+  IPKG_TMP=$(TMP_DIR)/ipkg \
+  IPKG_INSTROOT=$(TARGET_DIR) \
+  IPKG_CONF_DIR=$(STAGING_DIR)/etc \
+  IPKG_OFFLINE_ROOT=$(TARGET_DIR) \
+  $(XARGS) $(STAGING_DIR_HOST)/bin/opkg \
+	--offline-root $(TARGET_DIR) \
+	--force-depends \
+	--force-overwrite \
+	--force-postinstall \
+	--force-maintainer \
+	--add-dest root:/ \
+	--add-arch all:100 \
+	--add-arch $(if $(ARCH_PACKAGES),$(ARCH_PACKAGES),$(BOARD)):200
+
+
+define prepare_rootfs
+	@if [ -d $(TOPDIR)/files ]; then \
+		$(call file_copy,$(TOPDIR)/files/.,$(TARGET_DIR)); \
+	fi
+	@mkdir -p $(TARGET_DIR)/etc/rc.d
+	@( \
+		cd $(TARGET_DIR); \
+		for script in ./usr/lib/opkg/info/*.postinst; do \
+			IPKG_INSTROOT=$(TARGET_DIR) $$(which bash) $$script; \
+		done; \
+		for script in ./etc/init.d/*; do \
+			grep '#!/bin/sh /etc/rc.common' $$script >/dev/null || continue; \
+			IPKG_INSTROOT=$(TARGET_DIR) $$(which bash) ./etc/rc.common $$script enable; \
+		done || true \
+	)
+	$(if $(SOURCE_DATE_EPOCH),sed -i "s/Installed-Time: .*/Installed-Time: $(SOURCE_DATE_EPOCH)/" $(TARGET_DIR)/usr/lib/opkg/status)
+	@-find $(TARGET_DIR) -name CVS   | $(XARGS) rm -rf
+	@-find $(TARGET_DIR) -name .svn  | $(XARGS) rm -rf
+	@-find $(TARGET_DIR) -name .git  | $(XARGS) rm -rf
+	@-find $(TARGET_DIR) -name '.#*' | $(XARGS) rm -f
+	rm -f $(TARGET_DIR)/usr/lib/opkg/info/*.postinst*
+	rm -f $(TARGET_DIR)/usr/lib/opkg/info/*.prerm*
+	$(if $(CONFIG_CLEAN_IPKG),rm -rf $(TARGET_DIR)/usr/lib/opkg)
+	$(mklibs)
+endef

package/Makefile

@@ -7,7 +7,7 @@
 
 curdir:=package
 
-include $(INCLUDE_DIR)/feeds.mk
+include $(INCLUDE_DIR)/rootfs.mk
 
 -include $(TMP_DIR)/.packagedeps
 $(curdir)/builddirs:=$(sort $(package-) $(package-y) $(package-m))
@@ -27,56 +27,6 @@ ifneq ($(IGNORE_ERRORS),)
   $(curdir)/builddirs-ignore-host-compile := $(package-ignore-subdirs)
 endif
 
-ifdef CONFIG_USE_MKLIBS
-  define mklibs
-	rm -rf $(TMP_DIR)/mklibs-progs $(TMP_DIR)/mklibs-out
-	# first find all programs and add them to the mklibs list
-	find $(STAGING_DIR_ROOT) -type f -perm /100 -exec \
-		file -r -N -F '' {} + | \
-		awk ' /executable.*dynamically/ { print $$1 }' > $(TMP_DIR)/mklibs-progs
-	# find all loadable objects that are not regular libraries and add them to the list as well
-	find $(STAGING_DIR_ROOT) -type f -name \*.so\* -exec \
-		file -r -N -F '' {} + | \
-		awk ' /shared object/ { print $$1 }' > $(TMP_DIR)/mklibs-libs
-	mkdir -p $(TMP_DIR)/mklibs-out
-	$(STAGING_DIR_HOST)/bin/mklibs -D \
-		-d $(TMP_DIR)/mklibs-out \
-		--sysroot $(STAGING_DIR_ROOT) \
-		`cat $(TMP_DIR)/mklibs-libs | sed 's:/*[^/]\+/*$$::' | uniq | sed 's:^$(STAGING_DIR_ROOT):-L :'` \
-		--ldlib $(patsubst $(STAGING_DIR_ROOT)/%,/%,$(firstword $(wildcard \
-			$(foreach name,ld-uClibc.so.* ld-linux.so.* ld-*.so ld-musl-*.so.*, \
-			  $(STAGING_DIR_ROOT)/lib/$(name) \
-			)))) \
-		--target $(REAL_GNU_TARGET_NAME) \
-		`cat $(TMP_DIR)/mklibs-progs $(TMP_DIR)/mklibs-libs` 2>&1
-	$(RSTRIP) $(TMP_DIR)/mklibs-out
-	for lib in `ls $(TMP_DIR)/mklibs-out/*.so.* 2>/dev/null`; do \
-		LIB="$${lib##*/}"; \
-		DEST="`ls "$(TARGET_DIR)/lib/$$LIB" "$(TARGET_DIR)/usr/lib/$$LIB" 2>/dev/null`"; \
-		[ -n "$$DEST" ] || continue; \
-		echo "Copying stripped library $$lib to $$DEST"; \
-		cp "$$lib" "$$DEST" || exit 1; \
-	done
-  endef
-endif
-
-# where to build (and put) .ipk packages
-OPKG:= \
-  IPKG_NO_SCRIPT=1 \
-  IPKG_TMP=$(TMP_DIR)/ipkg \
-  IPKG_INSTROOT=$(TARGET_DIR) \
-  IPKG_CONF_DIR=$(STAGING_DIR)/etc \
-  IPKG_OFFLINE_ROOT=$(TARGET_DIR) \
-  $(XARGS) $(STAGING_DIR_HOST)/bin/opkg \
-	--offline-root $(TARGET_DIR) \
-	--force-depends \
-	--force-overwrite \
-	--force-postinstall \
-	--force-maintainer \
-	--add-dest root:/ \
-	--add-arch all:100 \
-	--add-arch $(if $(ARCH_PACKAGES),$(ARCH_PACKAGES),$(BOARD)):200
-
 PACKAGE_INSTALL_FILES:= \
 	$(foreach pkg,$(sort $(package-y)), \
 		$(foreach variant, \
@@ -106,29 +56,7 @@ $(curdir)/install: $(TMP_DIR)/.build $(curdir)/system/opkg/host/install
 		done; \
 	done || true
 	@-$(MAKE) package/preconfig
-	@if [ -d $(TOPDIR)/files ]; then \
-		$(call file_copy,$(TOPDIR)/files/.,$(TARGET_DIR)); \
-	fi
-	@mkdir -p $(TARGET_DIR)/etc/rc.d
-	@( \
-		cd $(TARGET_DIR); \
-		for script in ./usr/lib/opkg/info/*.postinst; do \
-			IPKG_INSTROOT=$(TARGET_DIR) $$(which bash) $$script; \
-		done; \
-		for script in ./etc/init.d/*; do \
-			grep '#!/bin/sh /etc/rc.common' $$script >/dev/null || continue; \
-			IPKG_INSTROOT=$(TARGET_DIR) $$(which bash) ./etc/rc.common $$script enable; \
-		done || true \
-	)
-	$(if $(SOURCE_DATE_EPOCH),sed -i "s/Installed-Time: .*/Installed-Time: $(SOURCE_DATE_EPOCH)/" $(TARGET_DIR)/usr/lib/opkg/status)
-	@-find $(TARGET_DIR) -name CVS   | $(XARGS) rm -rf
-	@-find $(TARGET_DIR) -name .svn  | $(XARGS) rm -rf
-	@-find $(TARGET_DIR) -name .git  | $(XARGS) rm -rf
-	@-find $(TARGET_DIR) -name '.#*' | $(XARGS) rm -f
-	rm -f $(TARGET_DIR)/usr/lib/opkg/info/*.postinst*
-	rm -f $(TARGET_DIR)/usr/lib/opkg/info/*.prerm*
-	$(if $(CONFIG_CLEAN_IPKG),rm -rf $(TARGET_DIR)/usr/lib/opkg)
-	$(call mklibs)
+	$(prepare_rootfs)
 
 PASSOPT=""
 PASSARG=""