[PATCH 2/3] bsps/i386: use Pentimum instructions for pc586 and pc686 builds.

[Sebastian Huber]

On 12/10/16 10:26, pisa at cmp.felk.cvut.cz wrote:
> SMP build is broken with i386 set because libatomic and GCC
> generate infinite loop for __atomic_fetch_add_4 used
> in rtems_interrupt_lock_acquire
>
> __atomic_fetch_add_4:
>      push   %ebp
>      mov    %esp,%ebp
>      movl   $0x5,0x10(%ebp)
>      pop    %ebp
>      jmp    __atomic_fetch_add_4

Do you have a test case for this compiler/RTEMS bug?  The use of 
libatomic is inefficient, but it should work.

-- 
Sebastian Huber, embedded brains GmbH

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