lkml.org 
[lkml]   [2002]   [Sep]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1 / ...] i386 dynamic fixup/self modifying code
Luca Barbieri wrote:
> > For the other fixups though you -have- to do them before you
> > run the code. That isnt hard (eg sparc btfixup). You generate a list of
> > the addresses in a segment, patch them all and let the init freeup blow
> > the table away
> Is doing them at runtime with the aforementioned workaround fine?

I would suggest that the init time table is infinitely saner, but if
there will be compiler generated instructions that are hard to catch, do
both: init time fixups for the __asm__ statements, and run time for
compiler generated instructions.

You really want the init time fixups anyway, because a really _really_
obvious optimisation is to remove `lock' prefixes on UP.

-- Jamie
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:28    [W:0.109 / U:0.312 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site