linux-kernel - Re: [Patch 0/6] MIPS: Hardware watch register support for gdb (version 3).

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Message-ID: <48B906B1.3030708@avtrex.com>
Date:	Sat, 30 Aug 2008 01:37:05 -0700
From:	David Daney <ddaney@...rex.com>
To:	linux-mips@...ux-mips.org
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [Patch 0/6] MIPS: Hardware watch register support for gdb (version
 3).

David Daney wrote:
> Esteemed kernel hackers,
> 
> To follow is my third pass at MIPS watch register support.
> 

I think there will have to be at least one more pass at this.

The current design assumes that all debug registers support an identical
set of the I, R, and W bits and Mask.

However sections 8.23 and 8.24 of my

  MIPS32® Architecture For Programmers
Volume III: The MIPS32® Privileged Resource Architecture

indicate that they do not have to uniform.  I will have to augment the
ptrace structures to report the values for each register instead of a
single global value.

David Daney

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