From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Warren <swarren@wwwdotorg.org>
Date: Thu, 17 Mar 2016 10:18:09 -0600
Subject: [U-Boot] buildman: arm: undefined reference to `__aeabi_ldivmod'
In-Reply-To: <CAD6G_RSyFj7mhegydvGC2JDAfCC9zabXprad7ymqYuYYXTnWdg@mail.gmail.com>
References: <CAD6G_RQpaHhbEcD7iHRv+_9h+cOCob6mvP+NfJeSOAJMnjYkqg@mail.gmail.com>
 <CAPnjgZ0i+Pa4pGwbW5pC3TVhzqA7ijYB6KHCk-2hkoJEyDgwgQ@mail.gmail.com>
 <CAD6G_RRV6iBrwTB_vJBt=N0cnAngugcAVa_YHZLNWVuL9NuG4w@mail.gmail.com>
 <56E6FF76.6040706@wwwdotorg.org>
 <CAD6G_RSpcCZv-MO3GhUrVK_HYzydLvLJYp=o_U+vNbBkmD3+cA@mail.gmail.com>
 <56E97D0B.1040005@wwwdotorg.org>
 <CAD6G_RSyFj7mhegydvGC2JDAfCC9zabXprad7ymqYuYYXTnWdg@mail.gmail.com>
Message-ID: <56EAD8C1.9080707@wwwdotorg.org>
List-Id: <u-boot.lists.denx.de>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: u-boot@lists.denx.de

On 03/16/2016 11:48 PM, Jagan Teki wrote:
> On 16 March 2016 at 21:04, Stephen Warren <swarren@wwwdotorg.org> wrote:
>> On 03/16/2016 08:27 AM, Jagan Teki wrote:
>>> On 14 March 2016 at 23:44, Stephen Warren <swarren@wwwdotorg.org> wrote:
>>>> On 03/14/2016 11:32 AM, Jagan Teki wrote:
>>>>> On 12 March 2016 at 06:02, Simon Glass <sjg@chromium.org> wrote:
>>>>>> On 11 March 2016 at 01:00, Jagan Teki <jagannadh.teki@gmail.com> wrote:
>>>>>>> Did anyone encounter this issue? please let me know for any inputs.
>>>>>>>
>>>>>>>           arm:  +   venice2
>>>>>>> +drivers/mtd/spi-nor/built-in.o: In function `spi_nor_write':
>>>>>>> +build/../drivers/mtd/spi-nor/spi-nor.c:585: undefined reference to
>>>>>>> `__aeabi_ldivmod'
>>>>>>> +arm-unknown-linux-gnueabi-ld.bfd: BFD (GNU Binutils) 2.24 assertion
>>>>>>> fail /home/tony/buildall/src/binutils/bfd/elf32-arm.c:7696
>>>>>>> +arm-unknown-linux-gnueabi-ld.bfd: error: required section '.rel.plt'
>>>>>>> not found in the linker script
>>>>>>> +arm-unknown-linux-gnueabi-ld.bfd: final link failed: Invalid
>>>>>>> operation
>>>>>>> +make[1]: *** [u-boot] Error 1
>>>>>>> +make: *** [sub-make] Error 2
>>>>>>
>>>>>> Are you using 64-bit division? Tegra uses the private libgcc. This
>>>>>> patch might help:
>>>>>
>>>>> Yes, I'm using 64-bit.
>>>>>
>>>>>> http://patchwork.ozlabs.org/patch/592628/
...
>> Perhaps you could share the local patches that are triggering the problem?
...
> This is the spi-nor.c file
> http://git.denx.de/?p=u-boot/u-boot-spi.git;a=blob;f=drivers/mtd/spi-nor/spi-nor.c;h=6166b62e595c6620bd3407788d705168e0bd6b2c;hb=refs/heads/spi-nor-test

I can reproduce this when building venice2 in u-boot-spi/spi-nor-test, 
and indeed the patch that Simon linked to doesn't help. That's because 
Simon's patch implements __aeabi_uldivmod whereas the linker failure is 
due to __aeabi_ldivmod (without the u).

Simon, is it easy for you to bring in __aeabi_ldivmod from the same place?

FWIW, I hacked _uldivmod.S to provide a dummy symbol for __aeabi_ldivmod 
and the link succeeded, so I think that's currently the only missing 
symbol. I only tested the venice2 build though.