Re: [yocto] dunfell gcc-sanitizers-arm-8.3 fails to build

From: "Ryan Harkin" <ryan.harkin@linaro.org>
To: Sumit Garg <sumit.garg@linaro.org>
Cc: Khem Raj <raj.khem@gmail.com>,
	yocto@lists.yoctoproject.org,
	 Ralph Siemsen <ralph.siemsen@linaro.org>,
	Jon Mason <Jon.Mason@arm.com>,
	 Nicolas Dechesne <nicolas.dechesne@linaro.org>,
	openembedded <openembedded@lists.linaro.org>
Subject: Re: [yocto] dunfell gcc-sanitizers-arm-8.3 fails to build
Date: Sun, 2 Aug 2020 08:30:19 +0100	[thread overview]
Message-ID: <CAD0U-h+D_qBPxtuzqHWKvd-8maTW_ZM=X9NjkL_LbRvddQkZag@mail.gmail.com> (raw)
In-Reply-To: <CAFA6WYMkfqNRvd51Mmi=2wZNGwz0Xi7Y_Uhy4BhS4kDnvkoyRw@mail.gmail.com>

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On Sat, 1 Aug 2020, 15:19 Sumit Garg, <sumit.garg@linaro.org> wrote:

> On Sat, 1 Aug 2020 at 19:40, Sumit Garg via lists.yoctoproject.org
> <sumit.garg=linaro.org@lists.yoctoproject.org> wrote:
> >
> > On Sat, 1 Aug 2020 at 14:57, Ryan Harkin <ryan.harkin@linaro.org> wrote:
> > >
> > >
> > >
> > > On Sat, 1 Aug 2020 at 10:09, Ryan Harkin <ryan.harkin@linaro.org>
> wrote:
> > >>
> > >> Hi Khem,
> > >>
> > >> On Fri, 31 Jul 2020, 21:58 Khem Raj, <raj.khem@gmail.com> wrote:
> > >>>
> > >>> On Fri, Jul 31, 2020 at 8:35 AM Ryan Harkin <ryan.harkin@linaro.org>
> wrote:
> > >>> >
> > >>> > Hello,
> > >>> >
> > >>> > I'm migrating from Warrior to Dunfell and I'm getting a curious
> build failure in gcc-sanitizers.
> > >>> >
> > >>> > Here's the full gory detail:
> > >>> >     https://pastebin.ubuntu.com/p/nh4cDKMvgS/
> > >>> >
> > >>> > However, the main error is this:
> > >>> >
> > >>> > | In file included from
> ../../../../../../../../../work-shared/gcc-arm-8.3-r2019.03/git/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc:193:
> > >>> > |
> ../../../../../../../../../work-shared/gcc-arm-8.3-r2019.03/git/libsanitizer/sanitizer_common/sanitizer_internal_defs.h:317:72:
> error: size of array 'assertion_failed__1152' is negative
> > >>> > |      typedef char IMPL_PASTE(assertion_failed_##_,
> line)[2*(int)(pred)-1]
> > >>> >
> > >>> > I have no idea where to begin with this. I don't even know why
> gcc-sanitizers is included in the build, what it does, or why I need it.
> I'm building an image with dev packages and gcc, so I guess that's why.
> > >>> >
> > >>> > I've hacked meta-arm to patch sanitizer_platform_limits_posix.cc
> to null out the macros and that builds fine. I'm sure it won't work, should
> someone want to use it, mind you.
> > >>> >
> > >>> > Is there something obvious that I should be doing as part of a
> Warrior -> Dunfell migration to get this to work?
> > >>> >
> > >>> > note: Warrior used meta-linaro-toolchain and for Dunfell, it's
> moved to meta-arm-toolchain.
> > >>> >
> > >>>
> > >>> is gcc 8.3 the latest for linaro
> > >>
> > >>
> > >> I assume so. I haven't attempted to change the default.
> > >
> > >
> > > I'm sorry, that's incorrect: local.conf has an over-ride to specify
> 8.3.
> > > I've just removed it and now it's using 9.3. And it's building fine.
> > >
>
> It's using GCC 9.3 from OE core. If you wish to use Arm toolchain then
> you need to override the default OE core GCC version with Arm
> toolchain GCC version:
>
> GCCVERSION = "arm-9.2"
>

Ah, right, I see! Yes, I think I'll stick with that suggestion.

Thanks for the explanation.

> -Sumit
>
> > > Sumit, do you know if there's a reason for using 9.2 in RPB instead of
> 9.3?
> > >
> >
> > Arm GCC 9.3 toolchain isn't released yet (see here [1]).
> >
> > [1]
> https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-a/downloads
> >
> > -Sumit
> >
> > >>
> > >>>
> > >>> > Regards,
> > >>> > Ryan.
> > >>> >
> > 
>

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