Hi Pavan,

I think this patch does the right thing. I have a minor comment on the
cc.has_argument you have added.

> ---
>  config/arm/meson.build | 11 ++++++++---
>  1 file changed, 8 insertions(+), 3 deletions(-)
> 
> diff --git a/config/arm/meson.build b/config/arm/meson.build index
> dea329ceb7..7f85b088c9 100644
> --- a/config/arm/meson.build
> +++ b/config/arm/meson.build
> @@ -841,6 +841,7 @@ if update_flags
>          implementer_config = implementers[implementer_id]
>          part_number = soc_config['part_number']
>          soc_flags = soc_config.get('flags', [])
> +        extra_features = soc_config.get('extra_march_features', [])
>          if not soc_config.get('numa', true)
>              has_libnuma = false
>          endif
> @@ -909,11 +910,15 @@ if update_flags
>          machine_args += march
>      else
>          candidate_mcpu = '-mcpu=' + mcpu
> -        if (cc.has_argument(candidate_mcpu))
> -            machine_args += candidate_mcpu
> -        else
> +        if not cc.has_argument(candidate_mcpu)

This is the else block of cc.has_argument, why is it checked again? 

>              error('Compiler does not support -mcpu=@0@.'.format(mcpu))
>          endif
> +        foreach flag: extra_features
> +            if cc.has_argument('+'.join([candidate_mcpu, flag]))
> +                candidate_mcpu = '+'.join([candidate_mcpu, flag])
> +            endif
> +        endforeach
> +        machine_args += candidate_mcpu

Looks good to me.

Thanks.

--wathsala


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