From: Daniel Jacobowitz <drow@false.org>
To: David Daney <ddaney@avtrex.com>
Cc: gdb@sourceware.org
Subject: Re: Adding watchpoint functions to target vector vs. TARGET*WATCHPOINT macros
Date: Tue, 09 Sep 2008 12:17:00 -0000 [thread overview]
Message-ID: <20080909121638.GA23510@caradoc.them.org> (raw)
In-Reply-To: <48C60739.8070000@avtrex.com>
On Mon, Sep 08, 2008 at 10:18:49PM -0700, David Daney wrote:
> Daniel pointed out that all the watch related functions could be added
> directly to the target vector instead of writing target specific
> TARGET*WATCHPOINT macros. While this is true, there is a small drawback.
>
> The target vector is not installed until the inferior is started, so any
> watches added before this happens end up being soft-watches.
While this is true, it is a general limitation of GDB and is much less
of a problem than the ones associated with the macros; please use the
target vector.
> Ideally in when the first resume() is issued to the inferior the
> watchpoints would be re-evaluated to see if some (or all) of them could
> be converted to hardware watchpoints. There might have to be an
> additional target hook to allow for this.
Right now there's never conversion from software to hardware
watchpoints. But I think this would be reasonable to do.
--
Daniel Jacobowitz
CodeSourcery
prev parent reply other threads:[~2008-09-09 12:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-09 5:19 David Daney
2008-09-09 12:17 ` Daniel Jacobowitz [this message]
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