projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | |
| 2 | obj-y := initramfs_data.o | |
| 3 | ||
| 4 | hostprogs-y := gen_init_cpio | |
| 5 | ||
| 6 | clean-files := initramfs_data.cpio.gz initramfs_list | |
| 7 | ||
| 8 | # initramfs_data.o contains the initramfs_data.cpio.gz image. | |
| 9 | # The image is included using .incbin, a dependency which is not | |
| 10 | # tracked automatically. | |
| 11 | $(obj)/initramfs_data.o: $(obj)/initramfs_data.cpio.gz FORCE | |
| 12 | ||
| 13 | ifdef CONFIG_INITRAMFS_ROOT_UID | |
| 14 | gen_initramfs_args += -u $(CONFIG_INITRAMFS_ROOT_UID) | |
| 15 | endif | |
| 16 | ||
| 17 | ifdef CONFIG_INITRAMFS_ROOT_GID | |
| 18 | gen_initramfs_args += -g $(CONFIG_INITRAMFS_ROOT_GID) | |
| 19 | endif | |
| 20 | ||
| 21 | # The $(shell echo $(CONFIG_INITRAMFS_SOURCE)) is to remove the | |
| 22 | # gratuitous begin and end quotes from the Kconfig string type. | |
| 23 | # Internal, escaped quotes in the Kconfig string will loose the | |
| 24 | # escape and become active quotes. | |
| 25 | quotefixed_initramfs_source := $(shell echo $(CONFIG_INITRAMFS_SOURCE)) | |
| 26 | ||
| 27 | filechk_initramfs_list = $(CONFIG_SHELL) \ | |
| 28 | $(srctree)/scripts/gen_initramfs_list.sh $(gen_initramfs_args) $(quotefixed_initramfs_source) | |
| 29 | ||
| 30 | $(obj)/initramfs_list: FORCE | |
| 31 | $(call filechk,initramfs_list) | |
| 32 | ||
| 33 | quiet_cmd_cpio = CPIO $@ | |
| 34 | cmd_cpio = ./$< $(obj)/initramfs_list > $@ | |
| 35 | ||
| 36 | ||
| 37 | # Check if the INITRAMFS_SOURCE is a cpio archive | |
| 38 | ifneq (,$(findstring .cpio,$(quotefixed_initramfs_source))) | |
| 39 | ||
| 40 | # INITRAMFS_SOURCE has a cpio archive - verify that it's a single file | |
| 41 | ifneq (1,$(words $(quotefixed_initramfs_source))) | |
| 42 | $(error Only a single file may be specified in CONFIG_INITRAMFS_SOURCE (="$(quotefixed_initramfs_source)") when a cpio archive is directly specified.) | |
| 43 | endif | |
| 44 | # Now use the cpio archive directly | |
| 45 | initramfs_data_cpio = $(quotefixed_initramfs_source) | |
| 46 | targets += $(quotefixed_initramfs_source) | |
| 47 | ||
| 48 | else | |
| 49 | ||
| 50 | # INITRAMFS_SOURCE is not a cpio archive - create one | |
| 51 | $(obj)/initramfs_data.cpio: $(obj)/gen_init_cpio \ | |
| 52 | $(initramfs-y) $(obj)/initramfs_list FORCE | |
| 53 | $(call if_changed,cpio) | |
| 54 | ||
| 55 | targets += initramfs_data.cpio | |
| 56 | initramfs_data_cpio = $(obj)/initramfs_data.cpio | |
| 57 | ||
| 58 | endif | |
| 59 | ||
| 60 | ||
| 61 | $(obj)/initramfs_data.cpio.gz: $(initramfs_data_cpio) FORCE | |
| 62 | $(call if_changed,gzip) | |
| 63 | ||
| 64 | targets += initramfs_data.cpio.gz | |
| 65 |