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.
J
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