[U-Boot] [PATCH v2 0/3] Add some missing buildman features and deprecate MAKEALL

[Jeroen Hofstee]

Hello Simon,

On 04-08-14 22:41, Simon Glass wrote:
> Hi Tom,
>
> On 4 August 2014 07:23, Tom Rini <trini at ti.com> wrote:
>> On Mon, Jul 28, 2014 at 11:53:27PM -0600, Simon Glass wrote:
>>
>>> Buildman has been around for a little over a year and is used by a fair
>>> number of U-Boot developers. However quite a few people still use MAKEALL.
>>>
>>> Buildman was intended to replace MAKEALL, so perhaps now is a good time to
>>> start that process.
>> OK, lets start.  First, I had to make up a special directory with
>> symlinks to the various toolchains, in order to get them to work with
>> buildman, due to the various layouts:
>>
>> $ ls -l ~/work/u-boot/toolchain-links/
>> total 4
>> lrwxrwxrwx 1 trini trini 38 Aug  1 17:09 arc_gnu_4.8-R2_prebuilt_uclibc_be -> /opt/arc_gnu_4.8-R2_prebuilt_uclibc_be
>> lrwxrwxrwx 1 trini trini 38 Aug  1 17:09 arc_gnu_4.8-R2_prebuilt_uclibc_le -> /opt/arc_gnu_4.8-R2_prebuilt_uclibc_le
>> lrwxrwxrwx 1 trini trini 24 Aug  1 17:10 bfin-elf -> /opt/uClinux-45/bfin-elf
>> lrwxrwxrwx 1 trini trini 32 Aug  1 17:09 m68k-linux -> /opt/gcc-4.9.0-nolibc/m68k-linux
>> lrwxrwxrwx 1 trini trini 34 Aug  1 17:09 microblazeel-xilinx-linux-gnu -> /opt/microblazeel-xilinx-linux-gnu
>> lrwxrwxrwx 1 trini trini 32 Aug  1 17:09 microblaze-xilinx-linux-gnu -> /opt/microblaze-xilinx-linux-gnu
>> lrwxrwxrwx 1 trini trini 66 Aug  1 17:15 mips32-linux -> /opt/eldk-5.2.1/mips/sysroots/i686-eldk-linux/usr/bin/mips32-linux
>> lrwxrwxrwx 1 trini trini 36 Aug  1 17:09 nds32le-linux-glibc-v1f -> /opt/nds32le/nds32le-linux-glibc-v1f
>> lrwxrwxrwx 1 trini trini 20 Aug  1 17:09 sparc-elf-3.4.4 -> /opt/sparc-elf-3.4.4
>>
>> I tried a few things but I couldn't get a toolchain section setup that
>> found all of those.  Second:
> OK, can you give me a trace of the output of 'buildman
> --list-tool-chains' - I should be able to figure out what is wrong.

Like Tom, I tried this a bit. (and ended up faking clang is gcc). There
are at least some assumptions cc = gcc and strlen(cc) == 3.
>> (testing the MMC pull request)
>> $ ./tools/buildman/buildman -b master
>> 'arc|blackfin|m68k|microblaze|nds32|sparc|mips'
>> No section: 'make-flags'
>> Building 11 commits for 121 boards (6 threads, 1 job per thread)
>> Cloning repo for thread 0
>> Cloning repo for thread 1
>> Cloning repo for thread 2
>> Cloning repo for thread 3
>> Cloning repo for thread 4
>> Cloning repo for thread 5
>>   1155   88   88 /1331   axs101
>>
>> So it's nice that it spit out a thread per commit, but I really only
>> care right now if master builds right.  And I've gone blind and can't
>> find the end result logs of what failed to build (88 failures doesn't
>> quite match the warning/errors I get for my wrapper around
>> toolchains+MAKEALL).
> You can use the -s flag to see the broken builds, and -se to see
> errors also. Is that what you mean?
>
> The output is in ../<branch>/<commit>/<board> but if you want to keep
> the binaries, you need -k also.

Like Tom, I saw fancy output, like merged not being a property
or something. I like to see the warnings and errors directly, but -e?
failed to do so. (or at least I didn't spend enough time to get it to work)
>> I also didn't quite see how to plugin an arm64 toolchain.
> I haven't tried - can you please point me to one and I'll give it a go.
>
>> Next up, is there some way to have multiple toolchains for an arch
>> available?  On some compute resources I have at work I throw
>> arm/eldk4.2, arm/eldk5.2, arm/linaro-2013.03 (since we've pinned to that
>> for some projects) and some various combos for powerpc as well.  I
>> didn't see how to do that with buildman aside from different ~/.buildman
>> files per invocation.
> Yes I remember you talking about this before. One option would be to
> add toolchain as a new dimension in the matrix. It might be painful
> though. So to be clear, you want to define multiple toolchains for an
> arch, and have buildman always build with all of them?
>

I would like this as well. For serious changing I typically build with
MAKEALL with clang and gcc (for ARM) + gcc for powerpc if it is
a overall change.

But since clang always warns it is actually not a viable target for
buildman at all.

Regards,
Jeroen