From: Daniel Jacobowitz <drow@false.org>
To: Orjan Friberg <orjan.friberg@axis.com>
Cc: gdb-patches@sources.redhat.com
Subject: Re: Z packet support in Gdbserver?
Date: Tue, 25 May 2004 15:27:00 -0000 [thread overview]
Message-ID: <20040525152659.GA22274@nevyn.them.org> (raw)
In-Reply-To: <40B3650C.5090800@axis.com>
On Tue, May 25, 2004 at 05:23:56PM +0200, Orjan Friberg wrote:
> I noticed there's no support for z/Z packets for hardware watchpoints in
> the gdbserver. (I searched the archives for this, but came up
> empty-handed.) I'd guess that (from looking at ptrace.c for i386, where
> it accesses the DR_ registers) that the Gdbserver gets to configure the
> hardware breakpoint mechanism through ptrace (PTRACE_POKEUSR, ...). But
> how does it get there in the first place, if not as a result of a z/Z
> packet? Through direct register writes (G packet)?
It's much simpler than that: gdbserver does not support hardware
watchpoints. No one's ever implemented it. As a copy/paste exercise
it would not be too hard; I still have pipe dreams of sharing the code
with GDB someday.
--
Daniel Jacobowitz
next parent reply other threads:[~2004-05-25 15:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <40B3650C.5090800@axis.com>
2004-05-25 15:27 ` Daniel Jacobowitz [this message]
2004-05-26 8:05 ` Orjan Friberg
2004-05-25 18:03 ` Andrew Cagney
2004-05-26 11:10 ` Orjan Friberg
2004-05-26 17:32 ` Andrew Cagney
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