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Date: Wed, 1 Dec 2010 10:07:58 +0530
From: "K.Prasad" <prasad@linux.vnet.ibm.com>
To: Andreas Schwab <schwab@linux-m68k.org>
Subject: Re: ppc_set_hwdebug vs ptrace_set_debugreg
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Cc: linuxppc-dev@ozlabs.org, Dave Kleikamp <shaggy@linux.vnet.ibm.com>,
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On Mon, Nov 29, 2010 at 11:15:51AM +0100, Andreas Schwab wrote:
> "K.Prasad" <prasad@linux.vnet.ibm.com> writes:
> 
> > Although ppc_set_hwdebug() can set DABR through set_dabr() in
> > arch/powerpc/kernel/process.c, it is good to have it converted to use
> > register_user_hw_breakpoint().
> 
> What do you mean with "good to have"?  It doesn't work without it unless
> I disable PERF_EVENTS (which is the only way to disable
> HAVE_HW_BREAKPOINT).
> 
> Andreas.
>

Let me see if I can cook up a patch for this i.e. make set_dabr() invoke
register_user_hw_breakpoint() when CONFIG_PPC_BOOK3S is defined; before I
head out on my vacation (starting second week of this month).

Thanks,
K.Prasad