[PATCH] arm64: remove redundant FRAME_POINTER kconfig option

Catalin Marinas catalin.marinas at arm.com
Fri Nov 6 08:12:14 PST 2015


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



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