[PATCH] x86: ptrace debugreg checks rewrite

Ingo Molnar mingo at elte.hu
Wed May 6 02:56:29 PDT 2009


* Alexey Dobriyan <adobriyan at gmail.com> 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


More information about the Containers mailing list