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config: support new symbol intro'd in kernel 4.12

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Symbol CONFIG_INITRAMFS_FORCE allows to ignore the value passed by the
bootloader.

By default, all symbols containing INITRAMFS are wiped from the final
config and then re-added conditionally.

Add support for this symbol, as the build will stop otherwise
questioning the user about this option:

* Restart config...
*
*
* General setup
*
Cross-compiler tool prefix (CROSS_COMPILE) []
Compile also drivers which will not load (COMPILE_TEST) [N/y/?] n

...

Initial RAM filesystem and RAM disk (initramfs/initrd) support
(BLK_DEV_INITRD) [Y/n/?] y
Initramfs source file(s) (INITRAMFS_SOURCE) []
Ignore the initramfs passed by the bootloader (INITRAMFS_FORCE)
[N/y/?] (NEW)

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
This commit is contained in:
Koen Vandeputte 2018-01-11 12:55:02 +01:00 committed by John Crispin
parent 7e99a6ba69
commit fce35bce0f
2 changed files with 10 additions and 0 deletions
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7
config/Config-images.in
View file

@ -52,6 +52,13 @@ menu "Target Images"
help
Kernel uses specified external cpio as INITRAMFS_SOURCE.
config TARGET_INITRAMFS_FORCE
bool "Force"
depends on TARGET_ROOTFS_INITRAMFS
default n
help
Ignore the initramfs passed by the bootloader.
comment "Root filesystem archives"
config TARGET_ROOTFS_CPIOGZ

3
include/kernel-defaults.mk
View file

@ -63,6 +63,8 @@ ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
$(call Kernel/SetInitramfs/PreConfigure)
echo 'CONFIG_INITRAMFS_ROOT_UID=$(shell id -u)' >> $(LINUX_DIR)/.config
echo 'CONFIG_INITRAMFS_ROOT_GID=$(shell id -g)' >> $(LINUX_DIR)/.config
echo 'CONFIG_INITRAMFS_FORCE=y' >> $(LINUX_DIR)/.config
echo "$(if $(CONFIG_TARGET_INITRAMFS_FORCE),CONFIG_INITRAMFS_FORCE=y,# CONFIG_INITRAMFS_FORCE is not set)" >> $(LINUX_DIR)/.config
echo "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_NONE),CONFIG_INITRAMFS_COMPRESSION_NONE=y,# CONFIG_INITRAMFS_COMPRESSION_NONE is not set)" >> $(LINUX_DIR)/.config
echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_GZIP),CONFIG_INITRAMFS_COMPRESSION_GZIP=y\nCONFIG_RD_GZIP=y,# CONFIG_INITRAMFS_COMPRESSION_GZIP is not set\n# CONFIG_RD_GZIP is not set)" >> $(LINUX_DIR)/.config
echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_BZIP2),CONFIG_INITRAMFS_COMPRESSION_BZIP2=y\nCONFIG_RD_BZIP2=y,# CONFIG_INITRAMFS_COMPRESSION_BZIP2 is not set\n# CONFIG_RD_BZIP2 is not set)" >> $(LINUX_DIR)/.config
@ -78,6 +80,7 @@ define Kernel/SetNoInitramfs
mv $(LINUX_DIR)/.config.set $(LINUX_DIR)/.config.old
grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config.set
echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config.set
echo '# CONFIG_INITRAMFS_FORCE is not set' >> $(LINUX_DIR)/.config.set
endef
define Kernel/Configure/Default