Theo Buehler:
> ++#ifdef __OpenBSD__
> ++ asm volatile( "rd %%tick, %0;" : "=r" (tick) );
> ++#else
> + asm volatile( "rdpr %%tick, %0;" : "=&r" (tick) );
> ++#endif /* __OpenBSD__ */
I'd just change the "rd" to "rdpr" without any ifdef.
The "read privileged register" instruction is only available in
privileged mode, so seems wrong for userland.
"rd %tick" is assembled into a "read state register" instruction.
I don't know what the earlyclobber constraint ('&') is supposed to
do here; it doesn't hurt, I guess.
--
Christian "naddy" Weisgerber [email protected]
