Re: [PATCH] xtensa: Increase size of gcc stack frame check

From: Max Filippov
Date: Sat Sep 11 2021 - 23:05:27 EST


On Sat, Sep 11, 2021 at 7:52 PM Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
>
> xtensa frame size is larger than the frame size for almost all other
> architectures. This results in more than 50 "the frame size of <n> is
> larger than 1024 bytes" errors when trying to build xtensa:allmodconfig.
>
> Increase frame size for xtensa to 1536 bytes to avoid compile errors
> due to frame size limits.
>
> Cc: Chris Zankel <chris@xxxxxxxxxx>
> Cc: Max Filippov <jcmvbkbc@xxxxxxxxx>
> Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
> ---
> lib/Kconfig.debug | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index ed4a31e34098..afad11e57d6b 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -346,7 +346,7 @@ config FRAME_WARN
> int "Warn for stack frames larger than"
> range 0 8192
> default 2048 if GCC_PLUGIN_LATENT_ENTROPY
> - default 1536 if (!64BIT && PARISC)
> + default 1536 if (!64BIT && (PARISC || XTENSA))
> default 1024 if (!64BIT && !PARISC)

Shouldn't that line also be changed to
default 1024 if (!64BIT && !(PARISC || XTENSA))
?

> default 2048 if 64BIT
> help
> --
> 2.33.0
>

--
Thanks.
-- Max