O> For example, this is what I've got currently:
>
> /* Detect and warn about potential overlaps. */
> void *memcpy(void *dest, const void *src, size_t n)
> {
> if (dest > src && dest - src < n)
> warn("Potentially unsafe overlapping memcpy detected!");
> return __memcpy(dest, src, n);
> }
>
> Does that seem okay? If so, I'll send the patch...
Probably useful for debug, but instead of relying on __memcpy
happening to handle overlaps - which isn't portable you could instead
debug all platforms by doing
if (...) {
warn(...)
memmove()
} else
__memcpy
Alan
