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makedevs: convert to a more normal way of building packages
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1 #
2 # Macro that builds the needed Makefile target to create a root
3 # filesystem image.
4 #
5 # The following variable must be defined before calling this macro
6 #
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 $$@.
10 #
11 # The following variables can optionaly be defined
12 #
13 #  ROOTFS_$(FSTYPE)_DEPENDENCIES, the list of dependencies needed to
14 #  build the root filesystem (usually host tools)
15 #
16 #  ROOTFS_$(FSTYPE)_PRE_GEN_HOOKS, a list of hooks to call before
17 #  generating the filesystem image
18 #
19 #  ROOTFS_$(FSTYPE)_POST_GEN_HOOKS, a list of hooks to call after
20 #  generating the filesystem image
21 #
22 # In terms of configuration option, this macro assumes that the
23 # BR2_TARGET_ROOTFS_$(FSTYPE) config option allows to enable/disable
24 # the generation of a filesystem image of a particular type. If
25 # configura options BR2_TARGET_ROOTFS_$(FSTYPE)_GZIP,
26 # BR2_TARGET_ROOTFS_$(FSTYPE)_BZIP2 or
27 # BR2_TARGET_ROOTFS_$(FSTYPE)_LZMA exist and are enabled, then the
28 # macro will automatically generate a compressed filesystem image.
29
30 FAKEROOT_SCRIPT = $(BUILD_DIR)/_fakeroot.fs
31 ROOTFS_DEVICE_TABLE = $(call qstrip,$(BR2_ROOTFS_DEVICE_TABLE))
32
33 define ROOTFS_TARGET_INTERNAL
34
35 $(BINARIES_DIR)/rootfs.$(1): $(ROOTFS_$(2)_DEPENDENCIES) host-fakeroot host-makedevs $(if $(BR2_TARGET_ROOTFS_$(2)_LZMA),host-lzma)
36         @$(call MESSAGE,"Generating root filesystem image rootfs.$(1)")
37         $(foreach hook,$(ROOTFS_$(2)_PRE_GEN_HOOKS),$(call $(hook))$(sep))
38         rm -f $(FAKEROOT_SCRIPT)
39         touch $(BUILD_DIR)/.fakeroot.00000
40         cat $(BUILD_DIR)/.fakeroot* > $(FAKEROOT_SCRIPT)
41         echo "chown -R 0:0 $(TARGET_DIR)" >> $(FAKEROOT_SCRIPT)
42 ifneq ($(ROOTFS_DEVICE_TABLE),)
43         echo "$(HOST_DIR)/usr/bin/makedevs -d $(ROOTFS_DEVICE_TABLE) $(TARGET_DIR)" >> $(FAKEROOT_SCRIPT)
44 endif
45         echo "$(ROOTFS_$(2)_CMD)" >> $(FAKEROOT_SCRIPT)
46         chmod a+x $(FAKEROOT_SCRIPT)
47         $(HOST_DIR)/usr/bin/fakeroot -- $(FAKEROOT_SCRIPT)
48         -@rm -f $(FAKEROOT_SCRIPT)
49         $(foreach hook,$(ROOTFS_$(2)_POST_GEN_HOOKS),$(call $(hook))$(sep))
50 ifeq ($$(BR2_TARGET_ROOTFS_$(2)_GZIP),y)
51         gzip -9 -c $$@ > [email protected]
52 endif
53 ifeq ($$(BR2_TARGET_ROOTFS_$(2)_BZIP2),y)
54         bzip2 -9 -c $$@ > [email protected]
55 endif
56 ifeq ($$(BR2_TARGET_ROOTFS_$(2)_LZMA),y)
57         $(LZMA) -9 -c $$@ > [email protected]
58 endif
59
60 $(1)-root: $(BINARIES_DIR)/rootfs.$(1)
61
62 ifeq ($$(BR2_TARGET_ROOTFS_$(2)),y)
63 TARGETS += $(1)-root
64 endif
65 endef
66
67 define ROOTFS_TARGET
68 $(call ROOTFS_TARGET_INTERNAL,$(1),$(call UPPERCASE,$(1)))
69 endef
70
71 include fs/*/*.mk
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