From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: Ralf Baechle <ralf@linux-mips.org>
Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp>, linux-mips@linux-mips.org
Subject: Re: [PATCH] Unify watch.S and remove arch/mips/lib-{32,64}
Date: Mon, 04 Jun 2007 19:15:53 +0400 [thread overview]
Message-ID: <46642CA9.20103@ru.mvista.com> (raw)
In-Reply-To: <20070604151048.GA30128@linux-mips.org>
Hello.
Ralf Baechle wrote:
>>Unify lib-{32,64}/watch.S into lib/watch.S and remove lib-{32,64}
>>completely.
>>The old 64-bit __watch_set() expected an physical address and the old
>>32-bit __watch_set() expected a KSEG0 virtual address. The new
>>unified __watch_set() is based on the 64-bit one. Since there is no
>>real user of the __watch_set(), this incompatibility would not cause
>>any problem.
> I think we can simply drop the entire watchpoint support. This was
> only ever working on R4000/R4400 and even there only somewhat useful
> for kernel debugging. So if we ever use watchpoint support I think
> something needs to be developed from scratch.
Watchpoints *could* be supported as part of KGDB, BTW.
> Ralf
WBR, Sergei
next prev parent reply other threads:[~2007-06-04 15:14 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-04 15:02 [PATCH] Unify watch.S and remove arch/mips/lib-{32,64} Atsushi Nemoto
2007-06-04 15:10 ` Ralf Baechle
2007-06-04 15:15 ` Sergei Shtylyov [this message]
2007-06-04 15:23 ` Maciej W. Rozycki
2007-06-04 15:41 ` Ralf Baechle
2007-06-04 16:28 ` Atsushi Nemoto
2007-06-07 17:39 ` Ralf Baechle
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