lkml.org 
[lkml]   [2021]   [Feb]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC][PATCH 6/6] objtool,x86: Rewrite retpoline thunk calls
On Sat, Feb 20, 2021 at 06:41:01PM +0100, Borislav Petkov wrote:
> > - if we had negative alternatives objtool doesn't need to actually
> > rewrite code in this case. It could simply emit alternative entries
> > and call it a day.
>
> I don't mind the negative alt per se - I mind the implementation I saw.
> I'm sure we can come up with something nicer, like, for example, struct
> alt_instr.flags to denote that this feature is a NOT feature.

So you don't like the ~ or - on cpuid? ISTR we talked about
alt_instr::flags before, but Google isn't playing ball today so I can't
seem to find it.

I can certainly look at adding the flags thing.

\
 
 \ /
  Last update: 2021-02-20 23:34    [W:0.047 / U:0.400 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site