Re: [PATCH] x86: ptrace debugreg checks rewrite

From: Ingo Molnar
Date: Wed May 06 2009 - 05:57:45 EST



* Alexey Dobriyan <adobriyan@xxxxxxxxx> wrote:

> On Mon, May 04, 2009 at 04:16:01AM +0400, Alexey Dobriyan wrote:
> > +static int ptrace_check_debugreg(int _32bit,
> > + unsigned long dr0, unsigned long dr1,
> > + unsigned long dr2, unsigned long dr3,
> > + unsigned long dr6, unsigned long dr7)
> > +{
> > + /* Breakpoint type: 00: --x, 01: -w-, 10: undefined, 11: rw- */
> > + unsigned int rw[4];
> > + /* Breakpoint length: 00: 1 byte, 01: 2 bytes, 10: 8 bytes, 11: bytes */
> 4 bytes, of course

Roland, Oleg, do you have any pending/planned changes in this area?

Ingo
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