[Buildroot] [PATCHv3 1/2] linux: add option to explicitly specify the kernel image name

[Yann E. MORIN <yann.morin.1998@free.fr>]

Waldemar, All,

On 2014-07-11 14:49 +0200, Waldemar Brodkorb spake thusly:
> For example the upcoming qemu-xtensa patch is using this feature,
> where the target is called "zImage", but the resulting kernel name
> is "Image.elf".
> 
> ---
> Changes v2 -> v3:
>   - improve subject (suggested by Thomas P.)
>   - LINUX_IMAGE_NAME defaults to LINUX_TARGET_NAME (suggested by Yann)
>   - improve help text (suggested by Yann)
> Changes v1 -> v2:
>   - add comment about default value (suggested by Arnout)
>   - reorder default value for LINUX_TARGET_NAME (suggested by Arnout)
> 
> Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>

Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

Regards,
Yann E. MORIN.

> ---
>  linux/Config.in |   10 ++++++++++
>  linux/linux.mk  |   10 +++++++---
>  2 files changed, 17 insertions(+), 3 deletions(-)
> 
> diff --git a/linux/Config.in b/linux/Config.in
> index 0a13b13..c13b929 100644
> --- a/linux/Config.in
> +++ b/linux/Config.in
> @@ -244,6 +244,16 @@ config BR2_LINUX_KERNEL_IMAGE_TARGET_NAME
>  	  Specify the kernel make target to build the kernel that you
>  	  need.
>  
> +config BR2_LINUX_KERNEL_IMAGE_NAME
> +	string "Kernel image name"
> +	depends on BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM
> +	help
> +	  The filename of the kernel image, if it is different from the
> +	  make target (above). Only Xtensa uses a filename different from
> +	  the make target. Defaults to BR2_LINUX_KERNEL_IMAGE_TARGET_NAME.
> +
> +	  If unsure, leave it empty.
> +
>  config BR2_LINUX_KERNEL_UIMAGE_LOADADDR
>  	string "load address (for 3.7+ multi-platform image)"
>  	depends on BR2_arm || BR2_armeb
> diff --git a/linux/linux.mk b/linux/linux.mk
> index bd3f2ac..d7e8390 100644
> --- a/linux/linux.mk
> +++ b/linux/linux.mk
> @@ -80,7 +80,8 @@ endif
>  KERNEL_DTBS = $(addsuffix .dtb,$(KERNEL_DTS_NAME))
>  
>  ifeq ($(BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM),y)
> -LINUX_IMAGE_NAME = $(call qstrip,$(BR2_LINUX_KERNEL_IMAGE_TARGET_NAME))
> +LINUX_IMAGE_NAME = $(call qstrip,$(BR2_LINUX_KERNEL_IMAGE_NAME))
> +LINUX_TARGET_NAME = $(call qstrip,$(BR2_LINUX_KERNEL_IMAGE_TARGET_NAME))
>  else
>  ifeq ($(BR2_LINUX_KERNEL_UIMAGE),y)
>  LINUX_IMAGE_NAME = uImage
> @@ -106,6 +107,9 @@ else ifeq ($(BR2_LINUX_KERNEL_VMLINUZ),y)
>  LINUX_IMAGE_NAME = vmlinuz
>  endif
>  endif
> +ifeq ($(LINUX_IMAGE_NAME),)
> +LINUX_IMAGE_NAME = $(LINUX_TARGET_NAME)
> +endif
>  
>  LINUX_KERNEL_UIMAGE_LOADADDR=$(call qstrip,$(BR2_LINUX_KERNEL_UIMAGE_LOADADDR))
>  ifneq ($(LINUX_KERNEL_UIMAGE_LOADADDR),)
> @@ -259,7 +263,7 @@ endif
>  define LINUX_BUILD_CMDS
>  	$(if $(BR2_LINUX_KERNEL_USE_CUSTOM_DTS),
>  		cp $(BR2_LINUX_KERNEL_CUSTOM_DTS_PATH) $(KERNEL_ARCH_PATH)/boot/dts/)
> -	$(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_IMAGE_NAME)
> +	$(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_TARGET_NAME)
>  	@if grep -q "CONFIG_MODULES=y" $(@D)/.config; then 	\
>  		$(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) modules ;	\
>  	fi
> @@ -332,7 +336,7 @@ endif
>  $(LINUX_DIR)/.stamp_initramfs_rebuilt: $(LINUX_DIR)/.stamp_target_installed $(LINUX_DIR)/.stamp_images_installed $(BINARIES_DIR)/rootfs.cpio
>  	@$(call MESSAGE,"Rebuilding kernel with initramfs")
>  	# Build the kernel.
> -	$(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_IMAGE_NAME)
> +	$(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_TARGET_NAME)
>  	$(LINUX_APPEND_DTB)
>  	# Copy the kernel image to its final destination
>  	cp $(LINUX_IMAGE_PATH) $(BINARIES_DIR)
> -- 
> 1.7.10.4
> 
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'