Messages in this thread | | | From | "Michael S. Zick" <> | Subject | Re: [BUG FIX] Make x86_32 uni-processor Atomic ops, Atomic | Date | Sun, 24 May 2009 14:09:40 -0500 |
| |
On Sun May 24 2009, H. Peter Anvin wrote: > Michael S. Zick wrote: > > > > Note: I have seem to recall that newer gcc's optimizer presume > > that the flags register is preserved across asm - > > It didn't use to do that - but there is now a "cc" to deal with > > that - Have not yet audited for that, but it is high on my list. > > > > I am pretty sure that's false... if it was true we'd have failures all > over the kernel. >
Not an issue at the moment, will cover that when I audit my own code.
Mike > -hpa >
| |