Re: regarding tracepoint support on a stub

[Daniel Jacobowitz <drow at mvista dot com>]

On Mon, Nov 03, 2003 at 02:01:23PM -0500, Newman, Mark (N-Superior Technical Resource Inc) wrote:
> Would it be desireable to drop ptrace all together and start looking at
> using /proc in gdbserver?

/proc in Linux can not serve as a replacement for ptrace.  The
functionality is not there.

> 
> The man pages (both Sun's and GNU's) refer to ptrace as "unique and
> arcane".
> 
>              Mark Newman
> 
> 
> > -----Original Message-----
> > From: gdb-owner@sources.redhat.com
> > [mailto:gdb-owner@sources.redhat.com]On Behalf Of ankit thukral
> > Sent: Monday, November 03, 2003 1:24 AM
> > To: gdb@sources.redhat.com
> > Subject: regarding tracepoint support on a stub
> > 
> > 
> > hi all,
> >       i was going through the GDB support for
> > tracepoints and the packets it sends to the stub.i
> > thought of collecting the registers on the gdbserver
> > side using a single ptrace to collect all the
> > registers and then store the ones requested instead of
> > a ptrace for each register. the problem i now face is
> > : there are 3 different ptrace requests for collecting
> > registers,viz,PTRACE_GETREGS, PTRACE_GETFPREGS and
> > PTRACE_GETFPAREGS.how do i determine (on the stub
> > side) which of these to call as i don't have anything
> > on the GDBSERVER side (or so i guess) which would
> > categorize a register to an integer or a float
> > register.
> >       also,please suggest if there is a better way in
> > which i can accomplish the above(i.e.,implementation
> > of collecting registers in a better way). 
> > 
> > thanks in advance,
> > ankit.
> > 
> > __________________________________
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> 

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer