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 $$@.
11 # The following variables can optionaly be defined
13 # ROOTFS_$(FSTYPE)_DEPENDENCIES, the list of dependencies needed to
14 # build the root filesystem (usually host tools)
16 # ROOTFS_$(FSTYPE)_PRE_GEN_HOOKS, a list of hooks to call before
17 # generating the filesystem image
19 # ROOTFS_$(FSTYPE)_POST_GEN_HOOKS, a list of hooks to call after
20 # generating the filesystem image
22 # ROOTFS_$(FSTYPE)_POST_TARGETS, the list of targets that should be
23 # run after running the main filesystem target. This is useful for
24 # initramfs, to rebuild the kernel once the initramfs is generated.
26 # In terms of configuration option, this macro assumes that the
27 # BR2_TARGET_ROOTFS_$(FSTYPE) config option allows to enable/disable
28 # the generation of a filesystem image of a particular type. If
29 # configura options BR2_TARGET_ROOTFS_$(FSTYPE)_GZIP,
30 # BR2_TARGET_ROOTFS_$(FSTYPE)_BZIP2 or
31 # BR2_TARGET_ROOTFS_$(FSTYPE)_LZMA exist and are enabled, then the
32 # macro will automatically generate a compressed filesystem image.
34 FAKEROOT_SCRIPT
= $(BUILD_DIR
)/_fakeroot.fs
35 FULL_DEVICE_TABLE
= $(BUILD_DIR
)/_device_table.txt
36 ROOTFS_DEVICE_TABLES
= $(call qstrip
,$(BR2_ROOTFS_DEVICE_TABLE
) \
37 $(BR2_ROOTFS_STATIC_DEVICE_TABLE
))
38 USERS_TABLE
= $(BUILD_DIR
)/_users_table.txt
40 define ROOTFS_TARGET_INTERNAL
43 ROOTFS_
$(2)_DEPENDENCIES
+= host-fakeroot host-makedevs
$$(if
$$(BR2_TARGET_ROOTFS_
$(2)_LZMA
),host-lzma
) $$(if
$$(BR2_TARGET_ROOTFS_
$(2)_LZO
),host-lzop
) $$(if
$$(BR2_TARGET_ROOTFS_
$(2)_XZ
),host-xz
)
45 $$(BINARIES_DIR
)/rootfs.
$(1): $$(ROOTFS_
$(2)_DEPENDENCIES
)
46 @
$$(call MESSAGE
,"Generating root filesystem image rootfs.$(1)")
47 $$(foreach hook
,$$(ROOTFS_
$(2)_PRE_GEN_HOOKS
),$$(call
$$(hook
))$$(sep
))
48 rm -f
$$(FAKEROOT_SCRIPT
)
49 rm -f
$$(TARGET_DIR_WARNING_FILE
)
50 echo
"chown -R 0:0 $$(TARGET_DIR)" >> $$(FAKEROOT_SCRIPT
)
51 ifneq ($$(ROOTFS_DEVICE_TABLES
),)
52 cat
$$(ROOTFS_DEVICE_TABLES
) > $$(FULL_DEVICE_TABLE
)
53 ifeq ($$(BR2_ROOTFS_DEVICE_CREATION_STATIC
),y
)
54 printf
'$$(subst $$(sep),\n,$$(PACKAGES_DEVICES_TABLE))' >> $$(FULL_DEVICE_TABLE
)
56 printf
'$$(subst $$(sep),\n,$$(PACKAGES_PERMISSIONS_TABLE))' >> $$(FULL_DEVICE_TABLE
)
57 echo
"$$(HOST_DIR)/usr/bin/makedevs -d $$(FULL_DEVICE_TABLE) $$(TARGET_DIR)" >> $$(FAKEROOT_SCRIPT
)
59 printf
'$(subst $(sep),\n,$(PACKAGES_USERS))' > $(USERS_TABLE
)
60 $(TOPDIR
)/support
/scripts
/mkusers
$(USERS_TABLE
) $(TARGET_DIR
) >> $(FAKEROOT_SCRIPT
)
61 echo
"$$(ROOTFS_$(2)_CMD)" >> $$(FAKEROOT_SCRIPT
)
62 chmod a
+x
$$(FAKEROOT_SCRIPT
)
63 $$(HOST_DIR
)/usr
/bin
/fakeroot
-- $$(FAKEROOT_SCRIPT
)
64 cp support
/misc
/target-dir-warning.txt
$$(TARGET_DIR_WARNING_FILE
)
65 -@
rm -f
$$(FAKEROOT_SCRIPT
) $$(FULL_DEVICE_TABLE
)
66 $$(foreach hook
,$$(ROOTFS_
$(2)_POST_GEN_HOOKS
),$$(call
$$(hook
))$$(sep
))
67 ifeq ($$(BR2_TARGET_ROOTFS_
$(2)_GZIP
),y
)
68 gzip
-9 -c
$$@
> $$@.gz
70 ifeq ($$(BR2_TARGET_ROOTFS_
$(2)_BZIP2
),y
)
71 bzip2
-9 -c
$$@
> $$@.bz2
73 ifeq ($$(BR2_TARGET_ROOTFS_
$(2)_LZMA
),y
)
74 $$(LZMA
) -9 -c
$$@
> $$@.lzma
76 ifeq ($$(BR2_TARGET_ROOTFS_
$(2)_LZO
),y
)
77 $$(LZOP
) -9 -c
$$@
> $$@.lzo
79 ifeq ($$(BR2_TARGET_ROOTFS_
$(2)_XZ
),y
)
80 $(XZ
) -9 -C crc32
-c
$$@
> $$@.xz
83 rootfs-
$(1)-show-depends
:
84 @echo
$$(ROOTFS_
$(2)_DEPENDENCIES
)
86 rootfs-
$(1): $$(BINARIES_DIR
)/rootfs.
$(1) $$(ROOTFS_
$(2)_POST_TARGETS
)
88 ifeq ($$(BR2_TARGET_ROOTFS_
$(2)),y
)
89 TARGETS
+= rootfs-
$(1)
94 $(call ROOTFS_TARGET_INTERNAL
,$(1),$(call UPPERCASE
,$(1)))
97 include $(sort $(wildcard fs
/*/*.mk
))