* Jeremy Fitzhardinge ([email protected]) wrote:
> Mathieu Desnoyers wrote:
> >Better idea : we could put a read/write dependency on a memory location.
> >
>
> Yes, that works well. And it needn't even exist:
>
> extern int __marker_sequencer; /* doesn't exist, never
> referenced */
>
> asm volatile("first asm" : "+m" (__marker_sequencer));
>
> asm volatile("second asm" : "+m" (__marker_sequencer));
>
> This keeps the asms ordered with respect to each other (and prevents to
> independent markers from being intermingled), but it doesn't prevent
> them from being re-ordered with respect to other code.
>
I will declare the pointers around the jmp instruction directly in assembly : I
wouldn't want gcc to put some other code there by mistake.
I will use the "name" variable, as it is already there.
A new version coming soon...
Thank you very much!
Mathieu
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