Re: [PATCH] x86: Implement __WARN using UD0
From: Ingo Molnar
Date: Fri Feb 24 2017 - 04:15:51 EST
* hpa@xxxxxxxxx <hpa@xxxxxxxxx> wrote:
> Incidentally, as an alternative to a #UD, int $9 could be an alternative
> (exception vector 9 was discontinued with the 486.)
With thousands of call sites a one byte opcode would be preferred, that's why INT3
is so nice.
Thanks,
Ingo