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

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From: David Daney <ddaney@...>
To: <linux-mips@...>
Cc: <linux-kernel@...>
Subject: [Patch 0/6] MIPS: Hardware watch register support for gdb (version 3).
Date: Thursday, August 28, 2008 - 5:38 pm

Esteemed kernel hackers,

To follow is my third pass at MIPS watch register support.

This version has been tested on:

* MIPS 4KEc (mips32) with a single set of watch registers watchhi not
  reporting I, R, and W conditions.

* MIPS 4KEc (mips32r2) with four sets of watch registers.

* R5000 SGI O2 (mips4 64bit) with no watch register support.

The patches are against 2.6.27-rc4


Changes from the previous version:

* Agreement from gdb maintainers that the ptrace interface is
  workable.

* Work around for watchhi registers that do not report the I, R, and W
  condition bits.

* General cleanup, including making much less code conditionally
  compiled.

To really test the patch you will need a patched gdb.  My current gdb
patch is here:

http://sourceware.org/ml/gdb-patches/2008-08/msg00650.html

If you have any comments or questions please let me know.

David Daney
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Messages in current thread:
[Patch 0/6] MIPS: Hardware watch register support for gdb (v..., David Daney, (Thu Aug 28, 5:38 pm)
Re: [Patch 0/6] MIPS: Hardware watch register support for gd..., David Daney, (Sat Aug 30, 4:37 am)
[Patch 6/6] MIPS: Ptrace support for HARDWARE_WATCHPOINTS, David Daney, (Thu Aug 28, 6:25 pm)
[Patch 5/6] MIPS: Scheduler support for HARDWARE_WATCHPOINTS., David Daney, (Thu Aug 28, 6:11 pm)
[Patch 4/6] MIPS: Watch exception handling for HARDWARE_WATC..., David Daney, (Thu Aug 28, 6:07 pm)
[Patch 3/6] MIPS: Probe watch registers and report configura..., David Daney, (Thu Aug 28, 6:02 pm)
[Patch 2/6] MIPS: Add HARDWARE_WATCHPOINTS definitions and s..., David Daney, (Thu Aug 28, 5:55 pm)
Patch [1/6] MIPS: Add HARDWARE_WATCHPOINTS configure option., David Daney, (Thu Aug 28, 5:45 pm)