buildroot 增加rootfsapp包

 Config.in

menu "Rootfs Application"

config BR2_PACKAGE_ROOTFSAPP
    bool "rootfsapp"
    help
      A package to copy custom files and folders to the root filesystem.

endmenu

ROOTFSAPP_VERSION = 1.0
ROOTFSAPP_SITE = $(TOPDIR)/package/rootfsapp
#ROOTFSAPP_DEPENDENCIES = # 填写依赖项，如果有的话
ROOTFSAPP_NO_SOURCE = YES
ROOTFSAPP_SITE_METHOD = local

define ROOTFSAPP_INSTALL_TARGET_CMDS
    $(INSTALL) -d -m 755 $(TARGET_DIR)/work
     cp -r  $(ROOTFSAPP_SITE)/work/* $(TARGET_DIR)/
	
	$(INSTALL) -D -m 0755 package/rootfsapp/etc/S25preboot $(TARGET_DIR)/etc/init.d/S35preboot
	$(INSTALL) -D -m 0755 package/rootfsapp/etc/fw_env.config $(TARGET_DIR)/etc/fw_env.config
	$(INSTALL) -D -m 0755 package/rootfsapp/etc/product $(TARGET_DIR)/etc/product
	$(INSTALL) -D -m 0755 package/rootfsapp/etc/pversion $(TARGET_DIR)/etc/pversion
	

$(eval $(generic-package))