[RTEMS Tools 0/1] trace/wscript: Improve C++ standard selection

[Sebastian Huber]

On 19.01.24 10:13, Sebastian Huber wrote:
> 
> 
> On 19.01.24 09:09, Cedric Berger wrote:
>> On 19.01.2024 08:55, Sebastian Huber wrote:
>>> On 19.01.24 07:58, Sebastian Huber wrote:
>>>> This patch fixes bugs #4908 and #4965 which were reported by RTMES
>>>> users.  The patch is from 19 May 2023 and was blocked due to missing
>>>> tests on macOS.  I have no macOS system for tests.  Would someone mind
>>>> testing this patch?  It would be nice to build the RTEMS Tools on 
>>>> modern
>>>> Linux systems with a standard LLVM package.
>>>
>>> I added a simple CI script to our Github fork of rtems-tools:
>>>
>>> https://github.com/embedded-brains/rtems-tools
>>>
>>> It seems that the current tools build with LLVM installed on 
>>> ubuntu-latest event without the patch:
>>>
>>> https://github.com/embedded-brains/rtems-tools/actions/runs/7580906673
>>>
>>> It builds also with the patch:
>>>
>>> https://github.com/embedded-brains/rtems-tools/actions/runs/7580925618
>>>
>>> I installed LLVM on macOS using brew, however, the rtems-tools didn't 
>>> pick it up. How can I build the rtems-tools on macOS with LLVM support?
>>
>> I'm willing to spend some time testing stuff on macOS.
> 
> Thanks for having a look at it.
> 
>>
>> However, I don't really understand why you installed LLVM using brew: 
>> people on MacOS usually use the standard XCode compiler from Apple, 
>> which is itself based on LLVM.
> 
> I don't use macOS myself, so I have no idea how this is set up normally. 
> It would be great to have the standard approach available as a Github 
> workflow.
> 
>>
>> What needs to be tested exactly?
> 
> The rtems-tools need to be built with the LLVM support. For this ./waf 
> configure needs to find LLVM. If it works it prints out something like 
> this:
> 
> Checking for library LLVM                : yes
> Checking for header llvm/DebugInfo/Symbolize/Symbolize.h : yes
> Checking for header zlib.h                               : yes
> Checking for library z                                   : yes
> Checking for library ws2_32                              : not found
> Checking for compiler flags -std=c++20                   : yes

The Github macOS runner has several tools installed:

https://github.com/actions/runner-images/blob/main/images/macos/macos-13-Readme.md

It would be nice if you could figure out how you have to configure the 
rtems-tools build so that it finds an LLVM installation providing 
Symbolize.h on macOS.

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