mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-14 21:01:29 +00:00
6ae64e428f
Remove initramfs_data.{lzo,lzma,gz,bz2}.S variants and use a common
implementation in initramfs_data.S. The common implementation expects the
file name of the initramfs to be defined in INITRAMFS_IMAGE.
Change the Makefile to set the INITRAMFS_IMAGE define symbol according
to the selected compression method.
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Acked-by: Michal Marek <mmarek@suse.cz>
Acked-by: "H. Peter Anvin" <hpa@zytor.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
67 lines
2.2 KiB
Makefile
67 lines
2.2 KiB
Makefile
#
|
|
# kbuild file for usr/ - including initramfs image
|
|
#
|
|
|
|
klibcdirs:;
|
|
PHONY += klibcdirs
|
|
|
|
|
|
# Gzip
|
|
suffix_$(CONFIG_INITRAMFS_COMPRESSION_GZIP) = .gz
|
|
|
|
# Bzip2
|
|
suffix_$(CONFIG_INITRAMFS_COMPRESSION_BZIP2) = .bz2
|
|
|
|
# Lzma
|
|
suffix_$(CONFIG_INITRAMFS_COMPRESSION_LZMA) = .lzma
|
|
|
|
# Lzo
|
|
suffix_$(CONFIG_INITRAMFS_COMPRESSION_LZO) = .lzo
|
|
|
|
AFLAGS_initramfs_data.o += -DINITRAMFS_IMAGE="usr/initramfs_data.cpio$(suffix_y)"
|
|
|
|
# Generate builtin.o based on initramfs_data.o
|
|
obj-$(CONFIG_BLK_DEV_INITRD) := initramfs_data.o
|
|
|
|
# initramfs_data.o contains the compressed initramfs_data.cpio image.
|
|
# The image is included using .incbin, a dependency which is not
|
|
# tracked automatically.
|
|
$(obj)/initramfs_data.o: $(obj)/initramfs_data.cpio$(suffix_y) FORCE
|
|
|
|
#####
|
|
# Generate the initramfs cpio archive
|
|
|
|
hostprogs-y := gen_init_cpio
|
|
initramfs := $(CONFIG_SHELL) $(srctree)/scripts/gen_initramfs_list.sh
|
|
ramfs-input := $(if $(filter-out "",$(CONFIG_INITRAMFS_SOURCE)), \
|
|
$(shell echo $(CONFIG_INITRAMFS_SOURCE)),-d)
|
|
ramfs-args := \
|
|
$(if $(CONFIG_INITRAMFS_ROOT_UID), -u $(CONFIG_INITRAMFS_ROOT_UID)) \
|
|
$(if $(CONFIG_INITRAMFS_ROOT_GID), -g $(CONFIG_INITRAMFS_ROOT_GID))
|
|
|
|
# .initramfs_data.cpio.d is used to identify all files included
|
|
# in initramfs and to detect if any files are added/removed.
|
|
# Removed files are identified by directory timestamp being updated
|
|
# The dependency list is generated by gen_initramfs.sh -l
|
|
ifneq ($(wildcard $(obj)/.initramfs_data.cpio.d),)
|
|
include $(obj)/.initramfs_data.cpio.d
|
|
endif
|
|
|
|
quiet_cmd_initfs = GEN $@
|
|
cmd_initfs = $(initramfs) -o $@ $(ramfs-args) $(ramfs-input)
|
|
|
|
targets := initramfs_data.cpio.gz initramfs_data.cpio.bz2 initramfs_data.cpio.lzma initramfs_data.cpio.lzo initramfs_data.cpio
|
|
# do not try to update files included in initramfs
|
|
$(deps_initramfs): ;
|
|
|
|
$(deps_initramfs): klibcdirs
|
|
# We rebuild initramfs_data.cpio if:
|
|
# 1) Any included file is newer then initramfs_data.cpio
|
|
# 2) There are changes in which files are included (added or deleted)
|
|
# 3) If gen_init_cpio are newer than initramfs_data.cpio
|
|
# 4) arguments to gen_initramfs.sh changes
|
|
$(obj)/initramfs_data.cpio$(suffix_y): $(obj)/gen_init_cpio $(deps_initramfs) klibcdirs
|
|
$(Q)$(initramfs) -l $(ramfs-input) > $(obj)/.initramfs_data.cpio.d
|
|
$(call if_changed,initfs)
|
|
|