[PATCH RTEMS] spec: Add -mstrict-align to mvme2100 default build

[Chris Johns]

On 11/8/2023 1:17 pm, Vijay Kumar Banerjee wrote:
> On Wed, Aug 9, 2023 at 8:04 PM Chris Johns <chrisj at rtems.org> wrote:
>>
>> On 10/8/2023 2:41 am, Joel Sherrill wrote:
>>> Reading the EPICS discussion, I wonder if this should be added for all
>>> motorola_powerpc BSP variants.
>>>
>>> Gedare/Chris/anyone with another board in the family? What do you think?
>>
>> Michael asked if the setting is present when building libc, libm etc in the
>> EPICS core devs meeting today and I could not answer the question?
> 
> I just built the tools for powerpc and it looks like libc, libm are
> not built with the -mstrict-align flag.

Is it a problem to not have option? I am do not know enough about this area of
the PowerPC to know.

>> Is it
>> exported in the .pc or Makefile.inc flags?
>>
> This flag is exported in ${RTEMS_BSP}.cfg file in RTEMS, which gets
> included by EPICS though CONFIG.Common.RTEMS:
> https://github.com/epics-base/epics-base/blob/7.0/configure/os/CONFIG.Common.RTEMS#L38
> 
> The `RTEMS_CUSTOM` variable is defined in Makefile.inc, and it points
> to the ${RTEMS_BSP}.cfg file

RTEMS has not needed this flag and libc and libm do not have it on so I am
confused why code in EPICS has triggering something that needs this option? I
would have thought it is needed everywhere or not at all?

Chris