linux-kernel - Re: Build regressions/improvements in v4.4

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Date:	Mon, 18 Jan 2016 16:02:24 -0800
From:	Guenter Roeck <linux@...ck-us.net>
To:	Michael Ellerman <mpe@...erman.id.au>,
	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: Build regressions/improvements in v4.4

On 01/18/2016 03:34 PM, Michael Ellerman wrote:
> On Mon, 2016-01-18 at 08:32 -0800, Guenter Roeck wrote:
>> On 01/13/2016 09:44 PM, Michael Ellerman wrote:
>>> On Mon, 2016-01-11 at 12:38 +0100, Geert Uytterhoeven wrote:
>>>> Hi Günter,
>>>> On Mon, Jan 11, 2016 at 12:14 PM, Guenter Roeck <linux@...ck-us.net> wrote:
>>>>> On Mon, Jan 11, 2016 at 09:29:52AM +0100, Geert Uytterhoeven wrote:
>>>>>> On Mon, Jan 11, 2016 at 9:28 AM, Geert Uytterhoeven
>>>>>> <geert@...ux-m68k.org> wrote:
>>>>>>> JFYI, when comparing v4.4[1] to v4.4-rc8[3], the summaries are:
>>>>>>>     - build errors: +13/-13
>>>>>>> [1] http://kisskb.ellerman.id.au/kisskb/head/9774/ (all 259 configs)
>>>>>>
>>>>>>     + /tmp/ccnzCwY6.s: Error: can't resolve `_start' {*UND* section} -
>>>>>> `L0^A' {.text section}:  => 43
>>>>>>     + /tmp/ccyAN6Ix.s: Error: can't resolve `_start' {*UND* section} -
>>>>>> `L0^A' {.text section}:  => 43
>>>>>>
>>>>>> Various MIPS, the saga continues...
>>>>>
>>>>> Hi Geert,
>>>>>
>>>>> do you know which version of binutils is used by kisskb ?
>>>>> If it is 2.23.90 or similar (ie below 2.24 and third level version
>>>>> has more than one digit), there is a patch pending to fix it.
>>>>
>>>> No, I don't know.
>>>
>>> It dumps the GCC version, but not binutils. I should add that one day.
>>>
>>> The mips toolchain is pretty old, so it's using binutils 2.22. Are you saying I
>>> need to update it?
>>>
>> Michael,
>>
>> is your toolchain available somewhere as binary ? I'd like to add a single
>> mips build test using it if possible.
>
> Hi Guenter,
>
> I'm still using this old one from kernel.org:
>
>    https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/x86_64-gcc-4.6.3-nolibc_mips-linux.tar.bz2
>

Odd, that works just fine for me when building v4.4. It correctly detects
that it can not build vdso and skips it as expected.

Puzzled ...

Guenter