Re: [PATCH] common: add option for shipping KCONFIG_CONFIG as /env/data/config

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On Sat, Apr 10, 2021 at 12:45:05PM +0200, Ahmad Fatoum wrote:
> Add a new option that enables access to the barebox configuration
> file through /env/data/config. This can be useful in environments
> where a fatter barebox can be tolerated (like on an EFI system
> partition). It could also be used to conditionally skip tests
> on disabled functionality in the future.
> 
> Signed-off-by: Ahmad Fatoum <ahmad@xxxxxx>
> ---
>  Makefile                | 2 ++
>  common/Kconfig          | 7 +++++++
>  defaultenv/Makefile     | 7 +++++++
>  defaultenv/defaultenv.c | 2 ++
>  scripts/Makefile.lib    | 3 +++
>  5 files changed, 21 insertions(+)

Applied, thanks

Sascha

> 
> diff --git a/Makefile b/Makefile
> index a36608819da5..c13f3274c18c 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -358,6 +358,8 @@ endif
>  
>  KCONFIG_CONFIG	?= .config
>  
> +export KCONFIG_CONFIG
> +
>  # Default file for 'make defconfig'. This may be overridden by arch-Makefile.
>  export KBUILD_DEFCONFIG := defconfig
>  
> diff --git a/common/Kconfig b/common/Kconfig
> index 342817bbcbb4..2872c80dbf13 100644
> --- a/common/Kconfig
> +++ b/common/Kconfig
> @@ -941,6 +941,13 @@ config DEFAULT_ENVIRONMENT_GENERIC_NEW_REBOOT_MODE
>  	depends on DEFAULT_ENVIRONMENT_GENERIC_NEW
>  	depends on REBOOT_MODE
>  
> +config DEFAULT_ENVIRONMENT_GENERIC_NEW_IKCONFIG
> +	bool "Ship .config as /env/data/config"
> +	help
> +	  This option embeds the used barebox Kconfig .config file into the
> +	  environment as /env/data/config. This will increases barebox image
> +	  size. If unsure, say n here.
> +
>  config DEFAULT_ENVIRONMENT_PATH
>  	string
>  	depends on DEFAULT_ENVIRONMENT
> diff --git a/defaultenv/Makefile b/defaultenv/Makefile
> index 91293567c0d3..68790321187d 100644
> --- a/defaultenv/Makefile
> +++ b/defaultenv/Makefile
> @@ -32,3 +32,10 @@ cmd_env_zero = ($(objtree)/scripts/bareboxenv -z $(CONFIG_DEFAULT_ENVIRONMENT_PA
>  
>  $(obj)/barebox_zero_env: FORCE
>  	$(call if_changed,env_zero)
> +
> +bbenv-$(CONFIG_DEFAULT_ENVIRONMENT_GENERIC_NEW_IKCONFIG) += defaultenv-2-ikconfig
> +
> +defaultenv/defaultenv-2-ikconfig.bbenv$(DEFAULT_COMPRESSION_SUFFIX): $(KCONFIG_CONFIG)
> +	@mkdir -p defaultenv/defaultenv-2-ikconfig/data
> +	@cp $(KCONFIG_CONFIG) defaultenv/defaultenv-2-ikconfig/data/config
> +	$(call cmd,envgen,defaultenv/defaultenv-2-ikconfig)
> diff --git a/defaultenv/defaultenv.c b/defaultenv/defaultenv.c
> index d69446c8937a..055475eb4756 100644
> --- a/defaultenv/defaultenv.c
> +++ b/defaultenv/defaultenv.c
> @@ -47,6 +47,8 @@ static void defaultenv_add_base(void)
>  		defaultenv_append_directory(defaultenv_2_dfu);
>  	if (IS_ENABLED(CONFIG_DEFAULT_ENVIRONMENT_GENERIC_NEW_REBOOT_MODE))
>  		defaultenv_append_directory(defaultenv_2_reboot_mode);
> +	if (IS_ENABLED(CONFIG_DEFAULT_ENVIRONMENT_GENERIC_NEW_IKCONFIG))
> +		defaultenv_append_directory(defaultenv_2_ikconfig);
>  	if (IS_ENABLED(CONFIG_DEFAULT_ENVIRONMENT_GENERIC))
>  		defaultenv_append_directory(defaultenv_1);
>  }
> diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
> index 319ac19975ed..80d76b177c0a 100644
> --- a/scripts/Makefile.lib
> +++ b/scripts/Makefile.lib
> @@ -365,6 +365,9 @@ cmd_env_S =							\
>  $(obj)/%.bbenv$(DEFAULT_COMPRESSION_SUFFIX).S: $(src)/%.bbenv$(DEFAULT_COMPRESSION_SUFFIX) FORCE
>  	$(call if_changed,env_S)
>  
> +quiet_cmd_envgen = ENVGEN  $@
> +cmd_envgen=$(srctree)/scripts/genenv $(objtree) $(objtree) $@ $2
> +
>  quiet_cmd_env = ENV     $@
>  cmd_env=$(srctree)/scripts/genenv $(srctree) $(objtree) $@ $<
>  
> -- 
> 2.30.0
> 
> 
> _______________________________________________
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> barebox@xxxxxxxxxxxxxxxxxxx
> http://lists.infradead.org/mailman/listinfo/barebox
> 

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