Re: [PATCH 2/3] kasan: move kasan_report() into report.c

[Qian Cai]

On Thu, May 28, 2020 at 05:00:54PM +0200, 'Andrey Konovalov' via kasan-dev wrote:
> On Thu, May 28, 2020 at 3:49 PM Qian Cai <cai@xxxxxx> wrote:
> >
> > On Tue, May 12, 2020 at 05:33:20PM +0200, 'Andrey Konovalov' via kasan-dev wrote:
> > > The kasan_report() functions belongs to report.c, as it's a common
> > > functions that does error reporting.
> > >
> > > Reported-by: Leon Romanovsky <leon@xxxxxxxxxx>
> > > Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
> >
> > Today's linux-next produced this with Clang 11.
> >
> > mm/kasan/report.o: warning: objtool: kasan_report()+0x8a: call to __stack_chk_fail() with UACCESS enabled
> >
> > kasan_report at mm/kasan/report.c:536
> 
> Hm, the first patch in the series ("kasan: consistently disable
> debugging features") disables stack protector for kasan files. Is that
> patch in linux-next?

Yes, it is there,

+CFLAGS_report.o := $(call cc-option, -fno-conserve-stack -fno-stack-protector)

It seems that will not work for Clang?