Master Doesn't Build with --enable-multiprocessing

[Sebastian Huber]

On 23/05/16 05:16, Chris Johns wrote:
> On 23/05/2016 08:35, Joel Sherrill wrote:
>>
>> The master doesn't build for sparc/leon3 when multiprocessing is
>> enabled. Based upon the error, there is likely user guidance needed
>> in the manual. For other methods removed, guidance on updating
>> code has been added. I didn't look to check in this case.
>>
>
> pc386 does not build with --enable-smp ...
>
> ..../i386/shared/irq/idt.c:84: undefined reference to 
> `rtems_interrupt_disable'

https://docs.rtems.org/doc-current/share/rtems/html/c_user/Symmetric-Multiprocessing-Services-Disable-Interrupts-and-Interrupt-Locks.html#Symmetric-Multiprocessing-Services-Disable-Interrupts-and-Interrupt-Locks

https://lists.rtems.org/pipermail/devel/2015-June/011535.html

>
> and ..
>
> pc686/lib/include/rtems/score/cpustdatomic.h:274: undefined reference 
> to `__atomic_fetch_add_4'

This is due to:

https://devel.rtems.org/ticket/2695

However, if you need this function from libatomic on an SMP system, you 
use completely wrong machine options.

SMP is not supported on x86 currently:

https://devel.rtems.org/ticket/2183

-- 
Sebastian Huber, embedded brains GmbH

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