Re: [PATCH] sh: Fix build with CONFIG_UBSAN=y

[John Paul Adrian Glaubitz]

Hi Kees,

On Mon, 2024-02-12 at 19:45 +0100, John Paul Adrian Glaubitz wrote:
> On Mon, 2024-02-12 at 10:26 -0800, Kees Cook wrote:
> > > I just wanted to try reproduce the problem again with the reproducer in [1] as well
> > > as with gcc-13.2.0, but your branch devel/overflow/ubsan-only no longer exists.
> > > 
> > > Can you tell me where to find the patches now?
> > 
> > Sure, they're in -next, but for an -rc2 based tree, see:
> > https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/log/?h=for-next/kspp
> 
> OK, thanks. I will give it a try with gcc-13.

I'm still unable to reproduce the error that the kernel test robot reported.

I'm using gcc-13:

glaubitz@node54:/data/home/glaubitz/linux-kees> sh4-linux-gcc
sh4-linux-gcc: fatal error: no input files
compilation terminated.
glaubitz@node54:/data/home/glaubitz/linux-kees> sh4-linux-gcc --version
sh4-linux-gcc (GCC) 13.2.0
Copyright (C) 2023 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

glaubitz@node54:/data/home/glaubitz/linux-kees>

I checked out your tree and the for-next/kspp branch.

Then fetched the config that triggered the bug like this:

$ wget https://download.01.org/0day-ci/archive/20240131/202401310416.s8HLiLnC-lkp@xxxxxxxxx/config -O .config

Building the kernel with "make -j32 uImage" works fine. No errors except for
some unreleated warnings that still need to be fixed.

Adrian

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