2 # Macro that builds the needed Makefile target to create a root
5 # The following variable must be defined before calling this macro
7 # ROOTFS_$(FSTYPE)_CMD, the command that generates the root
8 # filesystem image. A single command is allowed. The filename of the
9 # filesystem image that it must generate is $$@.
11 # The following variables can optionaly be defined
13 # ROOTFS_$(FSTYPE)_DEPENDENCIES, the list of dependencies needed to
14 # build the root filesystem (usually host tools)
16 # ROOTFS_$(FSTYPE)_PRE_GEN_HOOKS, a list of hooks to call before
17 # generating the filesystem image
19 # ROOTFS_$(FSTYPE)_POST_GEN_HOOKS, a list of hooks to call after
20 # generating the filesystem image
22 # In terms of configuration option, this macro assumes that the
23 # BR2_TARGET_ROOTFS_$(FSTYPE) config option allows to enable/disable
24 # the generation of a filesystem image of a particular type. If
25 # configura options BR2_TARGET_ROOTFS_$(FSTYPE)_GZIP,
26 # BR2_TARGET_ROOTFS_$(FSTYPE)_BZIP2 or
27 # BR2_TARGET_ROOTFS_$(FSTYPE)_LZMA exist and are enabled, then the
28 # macro will automatically generate a compressed filesystem image.
30 FAKEROOT_SCRIPT = $(BUILD_DIR)/_fakeroot.fs
31 ROOTFS_DEVICE_TABLE = $(call qstrip,$(BR2_ROOTFS_DEVICE_TABLE))
33 define ROOTFS_TARGET_INTERNAL
35 $(BINARIES_DIR)/rootfs.$(1): $(ROOTFS_$(2)_DEPENDENCIES) host-fakeroot host-makedevs $(if $(BR2_TARGET_ROOTFS_$(2)_LZMA),host-lzma)
36 @$(call MESSAGE,"Generating root filesystem image rootfs.$(1)")
37 $(foreach hook,$(ROOTFS_$(2)_PRE_GEN_HOOKS),$(call $(hook))$(sep))
38 rm -f $(FAKEROOT_SCRIPT)
39 touch $(BUILD_DIR)/.fakeroot.00000
40 cat $(BUILD_DIR)/.fakeroot* > $(FAKEROOT_SCRIPT)
41 echo "chown -R 0:0 $(TARGET_DIR)" >> $(FAKEROOT_SCRIPT)
42 ifneq ($(ROOTFS_DEVICE_TABLE),)
43 echo "$(HOST_DIR)/usr/bin/makedevs -d $(ROOTFS_DEVICE_TABLE) $(TARGET_DIR)" >> $(FAKEROOT_SCRIPT)
45 echo "$(ROOTFS_$(2)_CMD)" >> $(FAKEROOT_SCRIPT)
46 chmod a+x $(FAKEROOT_SCRIPT)
47 $(HOST_DIR)/usr/bin/fakeroot -- $(FAKEROOT_SCRIPT)
48 -@rm -f $(FAKEROOT_SCRIPT)
49 $(foreach hook,$(ROOTFS_$(2)_POST_GEN_HOOKS),$(call $(hook))$(sep))
50 ifeq ($$(BR2_TARGET_ROOTFS_$(2)_GZIP),y)
53 ifeq ($$(BR2_TARGET_ROOTFS_$(2)_BZIP2),y)
56 ifeq ($$(BR2_TARGET_ROOTFS_$(2)_LZMA),y)
60 $(1)-root: $(BINARIES_DIR)/rootfs.$(1)
62 ifeq ($$(BR2_TARGET_ROOTFS_$(2)),y)
68 $(call ROOTFS_TARGET_INTERNAL,$(1),$(call UPPERCASE,$(1)))