[PATCH v2] startup: introduce global.endianness variable

[Sascha Hauer]

On Tue, May 11, 2021 at 11:36:48AM +0300, Antony Pavlov wrote:
> The global.endianness variable makes it possible
> to determine current endian mode from command
> line or from script on bi-endian capable system.
> 
> Signed-off-by: Antony Pavlov <antonynpavlov at gmail.com>
> ---
>  common/globalvar.c | 13 +++++++++++++
>  1 file changed, 13 insertions(+)

Applied, thanks

Sascha

> 
> diff --git a/common/globalvar.c b/common/globalvar.c
> index a55b38b00f..8bb5015ce4 100644
> --- a/common/globalvar.c
> +++ b/common/globalvar.c
> @@ -641,6 +641,8 @@ int globalvar_add_simple_ip(const char *name, IPaddr_t *ip)
>  
>  static int globalvar_init(void)
>  {
> +	const char *endianness;
> +
>  	register_device(&global_device);
>  
>  	if (IS_ENABLED(CONFIG_NVVAR))
> @@ -651,6 +653,16 @@ static int globalvar_init(void)
>  	if (strlen(buildsystem_version_string) > 0)
>  		globalvar_add_simple("buildsystem.version", buildsystem_version_string);
>  
> +#ifdef __BIG_ENDIAN
> +	endianness = "big";
> +#elif defined(__LITTLE_ENDIAN)
> +	endianness = "little";
> +#else
> +#error "could not determine byte order"
> +#endif
> +
> +	globalvar_add_simple("endianness", endianness);
> +
>  	return 0;
>  }
>  pure_initcall(globalvar_init);
> @@ -658,6 +670,7 @@ pure_initcall(globalvar_init);
>  BAREBOX_MAGICVAR(global.version, "The barebox version");
>  BAREBOX_MAGICVAR(global.buildsystem.version,
>  		 "version of buildsystem barebox was built with");
> +BAREBOX_MAGICVAR(global.endianness, "The barebox endianness");
>  
>  /**
>   * nvvar_save - save NV variables to persistent environment
> -- 
> 2.31.1
> 
> 

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