Re: Arm GCC buildbot workers

[Christophe Lyon <christophe.lyon@arm.com>]

Hi Mark,

On 8/12/22 18:44, Mark Wielaard wrote:
> Hi Christophe,
>
> On Fri, Aug 12, 2022 at 09:23:36AM +0200, Christophe Lyon wrote:
>>> ubuntu22_04-arm64
>>> ubuntu22_04-armhf
>>>
>>> See the attached patch.
>>
>> Thanks, LGTM, the 2 new workers are now running.
>
> The ubuntu22_04-arm64 worker seems to happily do full gcc bootstrap
> and check builds:
> https://builder.sourceware.org/buildbot/#/workers/34
>
> It does find a couple of failing testcases, which you might want to
> look at, but most seem expected. All results are recorded in bunsen to
> be compared.

Great, thanks! I guess the errors are the same as observed on
gcc-full-debian-arm64?

Anyway I don't think any target has a clean 'make check' in GCC :-(

This will increase the need for a regression-detection mechanism in the
buildbot, otherwise we'll only have red bullets which people will ignore....


> The ubuntu22_04-armhf worker however fails to do a full gcc build:
> https://builder.sourceware.org/buildbot/#/workers/33
>
> In file included from ../../../gcc/libgcc/../gcc/tsystem.h:87,
>                   from ../../../gcc/libgcc/libgcc2.c:27:
> /usr/include/stdio.h:27:10: fatal error: bits/libc-header-start.h: No such file or directory
>     27 | #include <bits/libc-header-start.h>
>        |          ^~~~~~~~~~~~~~~~~~~~~~~~~~
> compilation terminated.
>
> It looks like that happens while building libcc for
> armv8l-unknown-linux-gnueabihf. Maybe missing devel header files? Or
> does the build needs to be configured to exclude this target?

So... I dug a bit and... you need to add --with-float=hard on GCC's
configure line. For some reason GCC's configure is not able to infer
that from the trailing 'hf' in the target name. Can you add it for this
target only or is the configure line shared by all GCC workers?

Thanks

Christophe

>
> Cheers,
>
> Mark
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