Problems with RTEMS toolchain build 4.12 & 5 incl. Ada support

Sebastian Huber sebastian.huber at
Mon Dec 3 06:18:56 UTC 2018

On 02/12/2018 23:36, Chris Johns wrote:
> On 30/11/2018 19:01, Sebastian Huber wrote:
>> I regularly build the RTEMS 5 tools with Ada support using the RSB, e.g.
>> cd $RSB/rtems
>> ../source-builder/sb-set-builder --prefix=/opt/rtems/5 5/rtems-sparc --with-ada
> Great. Have you posted any of these builds to build at

Yes, I always build and report --with-ada on arm, powerpc, and sparc. 
You see this in the report at a glance in the extra



>> The host and target GCC versions must match to build Ada. So, building the 6.3.0
>> RTEMS target GCC with a 7.1.0 host GCC will not work.
> Should the RSB check the version of GCC's Gnat?

I guess neither you nor I have the time to add this. Ada support has a 
very low priority for me.

>> You must not have a previous installation in the prefix if you build new tools
>> with Ada support.
> Oh this complicated issue again [1]. I suspect this one is not going to go away
> in a hurry and the solution will need to be clearly thought out.
> Could you please update the ticket with this detail so it is captured? I have
> not built Ada for RTEMS so I am not sure what the exe prefixes etc are.

I think

covers all major problems with an existing installation.

>> The documentation
>> should probably be updated to mention this.
> I see a patch from you, thank you. I will review it today.
>> I would use the latest RTEMS.
> Sure and thanks.

Building the tools with Ada support in RTEMS 4.11 and before is a lot 
more complicated. I also fixed a couple of Ada related issues during the 
RTEMS 5 development cycle. I run the Ada tests by default since a couple 
of months.

> Chris
> [1]

Sebastian Huber, embedded brains GmbH

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