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Date:   Wed, 5 Oct 2016 22:43:45 -0400 (EDT)
From:   Nicolas Pitre <nicolas.pitre@...aro.org>
To:     Fengguang Wu <fengguang.wu@...el.com>
cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        Michal Simek <monstr@...str.eu>
Subject: Re: net/sunrpc/stats.c:204: undefined reference to
 `_GLOBAL_OFFSET_TABLE_'

On Thu, 6 Oct 2016, Fengguang Wu wrote:

> On Tue, Oct 04, 2016 at 09:08:27AM -0400, Nicolas Pitre wrote:
> >On Tue, 4 Oct 2016, Fengguang Wu wrote:
> >
> > > CC Michal. It looks like a microblaze specific error. I'll blacklist
> > > this old error on microblaze if there are no good solutions.
> >
> >It doesn't exhibit any build error on my end.  Which is why I suggested
> >that you verify the integrity of your toolchain on your end.
> 
> OK, let me try upgrade the debian package first.
> What's your toolchain version?

The one that was installed by make.cross from the reproduction 
instructions included in the error report below. Currently:

gcc version 4.9.0
GNU ld (GNU Binutils) 2.24


> > > On Fri, Sep 23, 2016 at 05:11:32PM -0400, Nicolas Pitre wrote:
> > > >On Thu, 22 Sep 2016, kbuild test robot wrote:
> > > >
> > > > > Hi Nicolas,
> > > > >
> > > > > FYI, the error/warning still remains.
> > > > >
> > > > > tree:
> > > > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> > > > > master
> > > > > head:   7d1e042314619115153a0f6f06e4552c09a50e13
> > > > > commit: 461a5e51060c93f5844113f4be9dba513cc92830 do_div(): generic
> > > > > optimization for constant divisor on 32-bit machines
> > > > > date:   10 months ago
> > > > > config: microblaze-mmu_defconfig (attached as .config)
> > > > > compiler: microblaze-linux-gcc (GCC) 6.2.0
> > > > > reproduce:
> > > > >         wget
> > > > >         https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross
> > > > >         -O ~/bin/make.cross
> > > > >         chmod +x ~/bin/make.cross
> > > > >         git checkout 461a5e51060c93f5844113f4be9dba513cc92830
> > > > >         # save the attached .config to linux build tree
> > > > >         make.cross ARCH=microblaze
> > > > >
> > > > > All errors (new ones prefixed by >>):
> > > > >
> > > > >    net/built-in.o: In function `rpc_print_iostats':
> > > > > > > net/sunrpc/stats.c:204: undefined reference to
> > > > > > > `_GLOBAL_OFFSET_TABLE_'
> > > > >    scripts/link-vmlinux.sh: line 52:  5714 Segmentation fault
> > > > >    ${LD}
> > > > >    ${LDFLAGS} ${LDFLAGS_vmlinux} -o ${2} -T ${lds}
> > > > >    ${KBUILD_VMLINUX_INIT}
> > > > >    --start-group ${KBUILD_VMLINUX_MAIN} --end-group ${1}
> > > >
> > > >The problem must be at your end, especially if the toolchain exhibits
> > > >segmentation faults.
> > > >
> > > >Following exactly the instructions above, I get:
> > > >
> > > >[...]
> > > >  LD      vmlinux
> > > >  SORTEX  vmlinux
> > > >  SYSMAP  System.map
> > > >  OBJCOPY arch/microblaze/boot/linux.bin
> > > >  Building modules, stage 2.
> > > >  MODPOST 3 modules
> > > >  CC      crypto/drbg.mod.o
> > > >  CC      crypto/echainiv.mod.o
> > > >  CC      crypto/jitterentropy_rng.mod.o
> > > >  LD [M]  crypto/jitterentropy_rng.ko
> > > >  LD [M]  crypto/drbg.ko
> > > >  LD [M]  crypto/echainiv.ko
> > > >Kernel: arch/microblaze/boot/linux.bin is ready  (#1)
> > > >
> > > >
> > > >Nicolas
> > >
> 
> 

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