]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blame - usr/Makefile
x86, UV: Correct BAU discovery of hubs and sockets
[mirror_ubuntu-bionic-kernel.git] / usr / Makefile
CommitLineData
d39a206b
SR
1#
2# kbuild file for usr/ - including initramfs image
3#
1da177e4 4
d39a206b 5klibcdirs:;
48f1f058
SR
6PHONY += klibcdirs
7
a26ee60f 8
0bc9f9e6 9# Gzip
ab76f3d7 10suffix_$(CONFIG_INITRAMFS_COMPRESSION_GZIP) = .gz
a26ee60f
AK
11
12# Bzip2
ab76f3d7 13suffix_$(CONFIG_INITRAMFS_COMPRESSION_BZIP2) = .bz2
a26ee60f 14
ab76f3d7
AK
15# Lzma
16suffix_$(CONFIG_INITRAMFS_COMPRESSION_LZMA) = .lzma
1da177e4 17
2a2a400f
AT
18# Lzo
19suffix_$(CONFIG_INITRAMFS_COMPRESSION_LZO) = .lzo
20
d39a206b 21# Generate builtin.o based on initramfs_data.o
a26ee60f 22obj-$(CONFIG_BLK_DEV_INITRD) := initramfs_data$(suffix_y).o
1da177e4 23
a26ee60f 24# initramfs_data.o contains the compressed initramfs_data.cpio image.
1da177e4
LT
25# The image is included using .incbin, a dependency which is not
26# tracked automatically.
a26ee60f 27$(obj)/initramfs_data$(suffix_y).o: $(obj)/initramfs_data.cpio$(suffix_y) FORCE
1da177e4 28
d39a206b
SR
29#####
30# Generate the initramfs cpio archive
31
32hostprogs-y := gen_init_cpio
33initramfs := $(CONFIG_SHELL) $(srctree)/scripts/gen_initramfs_list.sh
34ramfs-input := $(if $(filter-out "",$(CONFIG_INITRAMFS_SOURCE)), \
a26d79ca 35 $(shell echo $(CONFIG_INITRAMFS_SOURCE)),-d)
d39a206b
SR
36ramfs-args := \
37 $(if $(CONFIG_INITRAMFS_ROOT_UID), -u $(CONFIG_INITRAMFS_ROOT_UID)) \
ff541710 38 $(if $(CONFIG_INITRAMFS_ROOT_GID), -g $(CONFIG_INITRAMFS_ROOT_GID))
d39a206b 39
a26ee60f 40# .initramfs_data.cpio.d is used to identify all files included
d39a206b
SR
41# in initramfs and to detect if any files are added/removed.
42# Removed files are identified by directory timestamp being updated
43# The dependency list is generated by gen_initramfs.sh -l
a26ee60f
AK
44ifneq ($(wildcard $(obj)/.initramfs_data.cpio.d),)
45 include $(obj)/.initramfs_data.cpio.d
1da177e4
LT
46endif
47
d39a206b
SR
48quiet_cmd_initfs = GEN $@
49 cmd_initfs = $(initramfs) -o $@ $(ramfs-args) $(ramfs-input)
50
2a2a400f 51targets := initramfs_data.cpio.gz initramfs_data.cpio.bz2 initramfs_data.cpio.lzma initramfs_data.cpio.lzo initramfs_data.cpio
58a2f7d8
SR
52# do not try to update files included in initramfs
53$(deps_initramfs): ;
54
d39a206b 55$(deps_initramfs): klibcdirs
a26ee60f
AK
56# We rebuild initramfs_data.cpio if:
57# 1) Any included file is newer then initramfs_data.cpio
d39a206b 58# 2) There are changes in which files are included (added or deleted)
a26ee60f 59# 3) If gen_init_cpio are newer than initramfs_data.cpio
d39a206b 60# 4) arguments to gen_initramfs.sh changes
a26ee60f
AK
61$(obj)/initramfs_data.cpio$(suffix_y): $(obj)/gen_init_cpio $(deps_initramfs) klibcdirs
62 $(Q)$(initramfs) -l $(ramfs-input) > $(obj)/.initramfs_data.cpio.d
d39a206b 63 $(call if_changed,initfs)
1da177e4 64