From: Daniel Jacobowitz <drow@false.org>
To: Robert Bu <robert.bu@gmail.com>
Cc: gdb@sourceware.org
Subject: Re: GDB RSP try 'p' before 'g'
Date: Wed, 24 Oct 2007 11:54:00 -0000 [thread overview]
Message-ID: <20071024115449.GB19251@caradoc.them.org> (raw)
In-Reply-To: <a0319f700710240129s5fb4ed61j223c683099d22c7f@mail.gmail.com>
On Wed, Oct 24, 2007 at 04:29:54PM +0800, Robert Bu wrote:
> Hello all,
>
> When doing remote debugging, GDB, version 6.0 and before, tries to
> fetch the registers' value by 'g' packet when connected to remote
> target. However, GDB version 6.4 and later, tries 'p' packet before 'g'
> packet. So if the target supports 'p' packet, GDB uses 'p' packet to
> retrieve value of all registers. That may degrate the speed for the poor
> connection speed (Serial, parallel or even ethernet) between GDB and the
> target.
> Does anybody know what is that change for?
If you don't want this to happen, I recommend you do not provide the
'p' packet or else use a newer GDB. Earlier versions of GDB did not
support 'p' at all. I believe I made GDB smarter about this around
6.6 or 6.7.
--
Daniel Jacobowitz
CodeSourcery
prev parent reply other threads:[~2007-10-24 11:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-24 8:30 Robert Bu
2007-10-24 11:54 ` Daniel Jacobowitz [this message]
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