lkml.org 
[lkml]   [2008]   [Jul]   [21]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateMon, 21 Jul 2008 08:18:44 -0700 (PDT)
SubjectRe: [PATCH 00/23] tracehook
FromDavid Miller <>
From: Roland McGrath <roland@redhat.com>
Date: Mon, 21 Jul 2008 03:54:31 -0700 (PDT)

> > The other arch's with compat support will have this same exact issue.
> 
> They don't seem to.

Look at S390 and PowerPC, they do the sign extension cases as well.

PowerPC does it with C level stubs, whereas I believe S390 uses a
similar assembler stub scheme as sparc64.

But you are right, this is probably not an issue, and providing 32-bit
truncated incoming args, and letting the tracer do whatever it likes
for outgoing args, should work just fine.


\
 
 \ /
  Last update: 2008-07-21 17:21    [from the cache]
©2003-2008