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Re: Does hardware watchpoint work on Linux/x86-64?

From: Daniel Jacobowitz <drow at false dot org>
To: "H.J. Lu" <hjl dot tools at gmail dot com>
Cc: gdb at sourceware dot org
Date: Wed, 16 Apr 2008 18:36:17 -0400
Subject: Re: Does hardware watchpoint work on Linux/x86-64?
References: <6dc9ffc80804161505h739a3aa0t86556f71d6422772@mail.gmail.com> <20080416221945.GA1708@caradoc.them.org> <6dc9ffc80804161524g5fe8ea7mf972f570676456b4@mail.gmail.com>

On Wed, Apr 16, 2008 at 03:24:31PM -0700, H.J. Lu wrote:
> (gdb) watch foo
> Watchpoint 1: foo
> (gdb) q

Oh this.  Start the program before you set the watchpoint.

As long as hardware watchpoints and software watchpoints are selected
when they are set, instead of when they are inserted, we will have
this problem.  Non-x86 targets have had it for a long time; it is new
on x86, because it only worked before by virtue of breaking remote
watchpoints.

-- 
Daniel Jacobowitz
CodeSourcery

References:
- Does hardware watchpoint work on Linux/x86-64?
  - From: H.J. Lu
- Re: Does hardware watchpoint work on Linux/x86-64?
  - From: Daniel Jacobowitz
- Re: Does hardware watchpoint work on Linux/x86-64?
  - From: H.J. Lu

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