lkml.org 
[lkml]   [2018]   [Dec]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v4] powerpc/ptrace: replace ptrace_report_syscall() with a tracehook call
On 12/07, Dmitry V. Levin wrote:
>
> On Fri, Dec 07, 2018 at 10:12:49PM +1100, Michael Ellerman wrote:
>
> > > Sorry, this patch does not work, please ignore it.
> >
> > Hmm OK. Why exactly?
>
> Unfortunately, I have no idea why it doesn't work.
> All I can say is it breaks strace because the kernel no longer sends
> syscall entry stops.

May be because TIF_SYSCALL_EMU/etc is a bit number, not a mask? IOW, rather
than

whatever & TIF_XXX

you should do

whatever & _TIF_XXX

intstead?

Oleg.

\
 
 \ /
  Last update: 2018-12-07 17:35    [W:0.110 / U:3.968 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site