linux-kernel - Re: [PATCH 1/3] csky: Select ARCH_WANT_FRAME

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Date:   Fri, 17 Sep 2021 14:20:23 +0800
From:   Guo Ren <guoren@...nel.org>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     linux-csky@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/3] csky: Select ARCH_WANT_FRAME_POINTERS only if
 compiler supports it

Acked, thx. It'll in next-tree.

On Fri, Sep 17, 2021 at 12:38 PM Guenter Roeck <linux@...ck-us.net> wrote:
>
> Compiling csky:allmodconfig with an upstream C compiler results
> in the following error.
>
> csky-linux-gcc: error:
>         unrecognized command-line option '-mbacktrace';
>         did you mean '-fbacktrace'?
>
> Select ARCH_WANT_FRAME_POINTERS only if gcc supports it to
> avoid the error.
>
> Signed-off-by: Guenter Roeck <linux@...ck-us.net>
> ---
>  arch/csky/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig
> index 9d4d898df76b..58ca3ef02bab 100644
> --- a/arch/csky/Kconfig
> +++ b/arch/csky/Kconfig
> @@ -8,7 +8,7 @@ config CSKY
>         select ARCH_HAS_SYNC_DMA_FOR_DEVICE
>         select ARCH_USE_BUILTIN_BSWAP
>         select ARCH_USE_QUEUED_RWLOCKS
> -       select ARCH_WANT_FRAME_POINTERS if !CPU_CK610
> +       select ARCH_WANT_FRAME_POINTERS if !CPU_CK610 && $(cc-option,-mbacktrace)
>         select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
>         select COMMON_CLK
>         select CLKSRC_MMIO
> --
> 2.33.0
>


-- 
Best Regards
 Guo Ren

ML: https://lore.kernel.org/linux-csky/