[Buildroot] [PATCH v3 1/4] ARC: config: explicit'ify -mcpu for cpu selection

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

Vineet, All,

On 2021-05-10 11:00 -0700, Vineet Gupta via buildroot spake thusly:
> This helps with distinguishing the cpu at the time of config selection
> 
> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
> ---
>  arch/Config.in.arc | 14 +++++++-------
>  1 file changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/arch/Config.in.arc b/arch/Config.in.arc
> index f7a6d920b50d..c9a695000f2c 100644
> --- a/arch/Config.in.arc
> +++ b/arch/Config.in.arc
> @@ -6,20 +6,20 @@ choice
>  	    Specific CPU to use
>  
>  config BR2_arc750d
> -	bool "ARC 750D"
> +	bool "ARC 750D (-mcpu=arc700)"

We are not doing this for any other architecture.

Besides, if this ever has to change, that would be two places where we'd
have to update the setting, and these prompts are just informative, so
they are prone to be missed.

It always possible to get that vaue, anyway, with:

    $ make printvars VARS=BR2_GCC_TARGET_%
    BR2_GCC_TARGET_CPU="arc700"

Regards,
Yann E. MORIN.

>  config BR2_arc770d
> -	bool "ARC 770D"
> +	bool "ARC 770D (-mcpu=arc700)"
>  
>  config BR2_archs38
> -	bool "ARC HS38"
> +	bool "ARC HS38 (-mcpu=archs)"
>  	help
>  	  Generic ARC HS capable of running Linux, i.e. with MMU,
>  	  caches and 32-bit multiplier. Also it corresponds to the
>  	  default configuration in older GNU toolchain versions.
>  
>  config BR2_archs38_64mpy
> -	bool "ARC HS38 with 64-bit mpy"
> +	bool "ARC HS38 with 64-bit mpy (-mcpu=hs38)"
>  	help
>  	  Fully featured ARC HS capable of running Linux, i.e. with
>  	  MMU, caches and 64-bit multiplier.
> @@ -28,7 +28,7 @@ config BR2_archs38_64mpy
>  	  for use this one.
>  
>  config BR2_archs38_full
> -	bool "ARC HS38 with Quad MAC & FPU"
> +	bool "ARC HS38 with Quad MAC & FPU (-mcpu=hs38_linux)"
>  	help
>  	  Fully featured ARC HS with additional support for
>  	   - Dual- and quad multiply and MC oprations
> @@ -38,12 +38,12 @@ config BR2_archs38_full
>  	  ARChitect.
>  
>  config BR2_archs4x_rel31
> -	bool "ARC HS48 rel 31"
> +	bool "ARC HS48 rel 31  (-mcpu=hs4x_rel31)"
>  	help
>  	   Build for HS48 release 3.1
>  
>  config BR2_archs4x
> -	bool "ARC HS48"
> +	bool "ARC HS48 (-mcpu=hs4x)"
>  	help
>  	   Latest release of HS48 processor
>  	   - Dual and Quad multiply and MAC operations
> -- 
> 2.25.1
> 
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

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