Re: [PATCH] arm64: remove redundant FRAME_POINTER kconfig option

From: Catalin Marinas
Date: Fri Nov 06 2015 - 11:12:21 EST


On Fri, Nov 06, 2015 at 12:30:09PM +0000, Will Deacon wrote:
> On Wed, Nov 04, 2015 at 09:37:51AM -0800, Yang Shi wrote:
> > FRAME_POINTER is defined in lib/Kconfig.debug, it is unnecessary to redefine
> > it in arch/arm64/Kconfig.debug.
>
> It might be worth noting that this adds a dependency on DEBUG_KERNEL
> for building with frame pointers. I'm ok with that (it appears to be
> enabled in defconfig and follows the vast majority of other archs) but
> it is a change in behaviour.

We shouldn't have the dependency on DEBUG_KERNEL since we select
ARCH_WANT_FRAME_POINTERS on arm64. However, the patch would allow one to
disable FRAME_POINTERS (not sure it has any effect on the aarch64 gcc
though).

--
Catalin
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/