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authorNicholas Piggin <npiggin@gmail.com>2017-01-05 20:29:36 +1000
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-05 09:40:16 -0800
commit9e3596b0c6539e28546ff7c72a06576627068353 (patch)
tree1c150c70bb2f1d2d3960f48c06eebe2d63078e1e
parentae30ab4cd711a147cafaf5674c333c5a84fe53fb (diff)
downloadlwn-9e3596b0c6539e28546ff7c72a06576627068353.tar.gz
lwn-9e3596b0c6539e28546ff7c72a06576627068353.zip
kbuild: initramfs cleanup, set target from Kconfig
Rather than keep a list of all possible compression types in the Makefile, set the target explicitly from Kconfig. Reviewed-by: Francisco Blas Izquierdo Riera (klondike) <klondike@klondike.es> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--usr/Makefile14
1 files changed, 7 insertions, 7 deletions
diff --git a/usr/Makefile b/usr/Makefile
index 746c3fd0b933..0b87e71c00fc 100644
--- a/usr/Makefile
+++ b/usr/Makefile
@@ -6,7 +6,9 @@ klibcdirs:;
PHONY += klibcdirs
suffix_y = $(subst $\",,$(CONFIG_INITRAMFS_COMPRESSION))
-AFLAGS_initramfs_data.o += -DINITRAMFS_IMAGE="usr/initramfs_data.cpio$(suffix_y)"
+datafile_y = initramfs_data.cpio$(suffix_y)
+AFLAGS_initramfs_data.o += -DINITRAMFS_IMAGE="usr/$(datafile_y)"
+
# Generate builtin.o based on initramfs_data.o
obj-$(CONFIG_BLK_DEV_INITRD) := initramfs_data.o
@@ -14,7 +16,7 @@ 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
+$(obj)/initramfs_data.o: $(obj)/$(datafile_y) FORCE
#####
# Generate the initramfs cpio archive
@@ -38,10 +40,8 @@ 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.xz \
- initramfs_data.cpio.lzo initramfs_data.cpio.lz4 \
- initramfs_data.cpio
+targets := $(datafile_y)
+
# do not try to update files included in initramfs
$(deps_initramfs): ;
@@ -51,6 +51,6 @@ $(deps_initramfs): klibcdirs
# 2) There are changes in which files are included (added or deleted)
# 3) If gen_init_cpio are newer than initramfs_data.cpio
# 4) arguments to gen_initramfs.sh changes
-$(obj)/initramfs_data.cpio$(suffix_y): $(obj)/gen_init_cpio $(deps_initramfs) klibcdirs
+$(obj)/$(datafile_y): $(obj)/gen_init_cpio $(deps_initramfs) klibcdirs
$(Q)$(initramfs) -l $(ramfs-input) > $(obj)/.initramfs_data.cpio.d
$(call if_changed,initfs)