Re: [PATCH] libsanitizer: cherry-pick commit f52e365092aa from upstream

["H.J. Lu" <hjl.tools@gmail.com>]

On Thu, May 5, 2022 at 11:28 AM Martin Liška <mliska@suse.cz> wrote:
>
> On 5/5/22 18:21, H.J. Lu wrote:
> > On Thu, May 5, 2022 at 4:24 AM Martin Liška <mliska@suse.cz> wrote:
> >>
> >> On 5/5/22 01:07, H.J. Lu wrote:
> >>> On Wed, May 4, 2022 at 1:59 AM Martin Liška <mliska@suse.cz> wrote:
> >>>>
> >>>> Hello.
> >>>>
> >>>> I'm going to do merge from upstream.
> >>>>
> >>>> Patch can bootstrap on x86_64-linux-gnu and survives regression
> >>>> tests. I've also tested on ppc64le-linux-gnu and verified the ABI.
> >>>>
> >>>> The only real change is a small change in
> >>>> gcc/testsuite/c-c++-common/asan/alloca_loop_unpoisoning.c where we
> >>>> need --param=asan-use-after-return=0.
> >>>>
> >>>> I'm going to push the patches.
> >>>
> >>> Hi,
> >>>
> >>> I am checking in this patch to cherry-pick
> >>>
> >>> f52e365092aa [sanitizer] Use newfstatat for x32
> >>>
> >>> to restore x32 build.
> >>>
> >>
> >> I'm going to do one more merge from upstream
> >> (75f9e83ace52773af65dcebca543005ec8a2705d) as we want to include Tobias's
> >> revision 6f095babc2b7d564168c7afc5bf6afb2188fd6b4 and my
> >> revision f1b9245199f3457a4d06d32d1bc6e44573c166e3.
> >
> > I am testing a patch for
> >
> > https://github.com/llvm/llvm-project/issues/55288

I submitted:

https://reviews.llvm.org/D125025

> > to fix:
> >
> > https://gcc.gnu.org/pipermail/gcc-regression/2022-May/076571.html
>
> Interesting. How did you run these tests that the error shows up?

Just normal GCC bootstrap and check with x32 enabled.

> >
> > The same bug is also in GCC 12.  But somehow, it doesn't show up in
> > GCC tests.
>
> So please backport it once it's merged.
>

Will do after GCC 12 is released.

Thanks.

-- 
H.J.