diff options
| -rw-r--r-- | linux/Config.in | 28 | ||||
| -rw-r--r-- | linux/linux.mk | 22 |
2 files changed, 49 insertions, 1 deletions
diff --git a/linux/Config.in b/linux/Config.in index 432cba45d..57b3490e8 100644 --- a/linux/Config.in +++ b/linux/Config.in @@ -262,6 +262,34 @@ config BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM endchoice +# +# Kernel compression format +# + +choice + prompt "Kernel compression format" + help + This selection will just ensure that the correct host tools are build. + The actual compression for the kernel should be selected in the + kernel configuration menu. + +config BR2_LINUX_KERNEL_GZIP + bool "gzip compression" + +config BR2_LINUX_KERNEL_LZ4 + bool "lz4 compression" + +config BR2_LINUX_KERNEL_LZMA + bool "lzma compression" + +config BR2_LINUX_KERNEL_LZO + bool "lzo compression" + +config BR2_LINUX_KERNEL_XZ + bool "xz compression" + +endchoice + config BR2_LINUX_KERNEL_IMAGE_TARGET_NAME string "Kernel image target name" depends on BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM diff --git a/linux/linux.mk b/linux/linux.mk index 9507837c4..dd2cc4961 100644 --- a/linux/linux.mk +++ b/linux/linux.mk @@ -56,7 +56,23 @@ LINUX_PATCHES = $(call qstrip,$(BR2_LINUX_KERNEL_PATCH)) LINUX_PATCH = $(filter ftp://% http://% https://%,$(LINUX_PATCHES)) LINUX_INSTALL_IMAGES = YES -LINUX_DEPENDENCIES += host-kmod host-lzop +LINUX_DEPENDENCIES += host-kmod + +# host tools needed for kernel compression +ifeq ($(BR2_LINUX_KERNEL_LZ4),y) +LINUX_DEPENDENCIES += host-lz4 +else ifeq ($(BR2_LINUX_KERNEL_LZMA),y) +LINUX_DEPENDENCIES += host-lzma +else ifeq ($(BR2_LINUX_KERNEL_LZO),y) +LINUX_DEPENDENCIES += host-lzop +else ifeq ($(BR2_LINUX_KERNEL_XZ),y) +LINUX_DEPENDENCIES += host-xz +endif +LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_GZIP) = CONFIG_KERNEL_GZIP +LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_LZ4) = CONFIG_KERNEL_LZ4 +LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_LZMA) = CONFIG_KERNEL_LZMA +LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_LZO) = CONFIG_KERNEL_LZO +LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_XZ) = CONFIG_KERNEL_XZ ifeq ($(BR2_LINUX_KERNEL_UBOOT_IMAGE),y) LINUX_DEPENDENCIES += host-uboot-tools @@ -181,6 +197,10 @@ LINUX_KCONFIG_OPTS = $(LINUX_MAKE_FLAGS) define LINUX_KCONFIG_FIXUP_CMDS $(if $(LINUX_NEEDS_MODULES), $(call KCONFIG_ENABLE_OPT,CONFIG_MODULES,$(@D)/.config)) + $(call KCONFIG_ENABLE_OPT,$(LINUX_COMPRESSION_OPT_y),$(@D)/.config) + $(foreach opt, $(LINUX_COMPRESSION_OPT_), + $(call KCONFIG_DISABLE_OPT,$(opt),$(@D)/.config) + ) $(if $(BR2_arm)$(BR2_armeb), $(call KCONFIG_ENABLE_OPT,CONFIG_AEABI,$(@D)/.config)) $(if $(BR2_TARGET_ROOTFS_CPIO), |