[PATCH 9/9] ARM: Add KASan support
Sascha Hauer
s.hauer at pengutronix.de
Wed Feb 10 04:26:05 EST 2021
On Tue, Feb 09, 2021 at 10:25:57AM +0100, Ahmad Fatoum wrote:
> Hello Sascha,
>
> On 18.09.20 10:45, Sascha Hauer wrote:
> > This adds KASan support to the ARM architecture. What we are doing is:
> >
> > * Add __no_sanitize_address attribute to various lowlevel functions
> > which do not run in a proper C environment
> > * Add non-instrumented variants of memset/memcpy (prefixed with '__')
> > * make original memcpy/memset weak symbols so strong definitions in
> > lib/kasan/common.c can replace them
> > * Use non-instrumented memcpy in early functions
> > * call kasan_init()
> >
> > Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
> > ---
> > arch/arm/Kconfig | 1 +
> > arch/arm/cpu/Makefile | 2 ++
> > arch/arm/cpu/common.c | 2 +-
> > arch/arm/cpu/setupc.S | 6 +++---
>
> Shouldn't you've touched setupc_64.S here as well?
Likely, yes. How did you stumble upon this?
Sascha
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