linux-kernel - Re: undefined reference to `_GLOBAL_OFFSET_TABLE

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Message-ID: <20170820133637.3c9a6120@ppc64le>
Date:   Sun, 20 Aug 2017 13:36:37 +1000
From:   Nicholas Piggin <npiggin@...il.com>
To:     kbuild test robot <fengguang.wu@...el.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        fengguang.wu@...el.com, Michal Simek <monstr@...str.eu>
Subject: Re: undefined reference to `_GLOBAL_OFFSET_TABLE_'

On Sun, 20 Aug 2017 08:37:36 +0800
kbuild test robot <fengguang.wu@...el.com> wrote:

> Hi Nicholas,
> 
> FYI, the error/warning still remains.

Still same answer as before, i.e., it seems to be this toolchain bug:

https://sourceware.org/bugzilla/show_bug.cgi?id=21017

I've had no response from the microblaze maintainer, so please stop
generating this warning now. If we get a bug report from a user who
actually cares and will test toolchain fixes then we can easily work
with them.

Many thanks for the very good service this build system provides!

Thanks,
Nick

> 
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   58d4e450a490d5f02183f6834c12550ba26d3b47
> commit: 799c43415442414b1032580c47684cb709dfed6d kbuild: thin archives make default for all archs
> date:   7 weeks ago
> config: microblaze-allnoconfig (attached as .config)
> compiler: microblaze-linux-gcc (GCC) 6.2.0
> reproduce:
>         wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         git checkout 799c43415442414b1032580c47684cb709dfed6d
>         # save the attached .config to linux build tree
>         make.cross ARCH=microblaze 
> 
> All errors (new ones prefixed by >>):
> 
>    mm/slub.o: In function `__slab_free.isra.13':
> >> (.text+0x1038): undefined reference to `_GLOBAL_OFFSET_TABLE_'  
>    scripts/link-vmlinux.sh: line 93: 48917 Segmentation fault      ${LD} ${LDFLAGS} ${LDFLAGS_vmlinux} -o ${2} -T ${lds} ${objects}
> 
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation