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Date: Wed, 21 Dec 2011 11:55:02 +1100
From: David Gibson <dwg@au1.ibm.com>
To: "K.Prasad" <prasad@linux.vnet.ibm.com>
Subject: Re: [PATCH 2/2] [PowerPC Book3E] Introduce new ptrace debug feature
 flag
Message-ID: <20111221005502.GE5188@truffala.fritz.box>
References: <20111208111212.GB3720@in.ibm.com>
 <20111208112330.GB24484@in.ibm.com>
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Cc: linuxppc-dev@ozlabs.org, Thiago Jung Bauermann <bauerman@br.ibm.com>,
 Edjunior Barbosa Machado <emachado@linux.vnet.ibm.com>
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On Thu, Dec 08, 2011 at 04:53:30PM +0530, K.Prasad wrote:
> While PPC_PTRACE_SETHWDEBUG ptrace flag in PowerPC accepts
> PPC_BREAKPOINT_MODE_EXACT mode of breakpoint, the same is not intimated to the
> user-space debuggers (like GDB) who may want to use it. Hence we introduce a
> new PPC_DEBUG_FEATURE_DATA_BP_EXACT flag which will be populated on the
> "features" member of "struct ppc_debug_info" to advertise support for the
> same on Book3E PowerPC processors.

Hrm.  I had assumed the reason there wasn't a feature bit for EXACT
originally was that EXACT breakpoints were *always* supposed to be
supported by the new interface.

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson