linux-kernel - Re: [PATCH v4] arm64: support single-step and breakpoint handler hooks

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Message-ID: <20131217181726.GU32118@arm.com>
Date:	Tue, 17 Dec 2013 18:17:26 +0000
From:	Catalin Marinas <catalin.marinas@....com>
To:	Sandeepa Prabhu <sandeepa.prabhu@...aro.org>
Cc:	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"patches@...aro.org" <patches@...aro.org>,
	"linaro-kernel@...ts.linaro.org" <linaro-kernel@...ts.linaro.org>,
	Will Deacon <Will.Deacon@....com>,
	"Vijaya.Kumar@...iumnetworks.com" <Vijaya.Kumar@...iumnetworks.com>,
	"dsaxena@...aro.org" <dsaxena@...aro.org>,
	"jason.wessel@...driver.com" <jason.wessel@...driver.com>,
	"steve.capper@...aro.org" <steve.capper@...aro.org>
Subject: Re: [PATCH v4] arm64: support single-step and breakpoint handler
 hooks

On Wed, Dec 04, 2013 at 05:50:20AM +0000, Sandeepa Prabhu wrote:
> AArch64 Single Steping and Breakpoint debug exceptions will be
> used by multiple debug framworks like kprobes & kgdb.
> 
> This patch implements the hooks for those frameworks to register
> their own handlers for handling breakpoint and single step events.
> 
> Reworked the debug exception handler in entry.S: do_dbg to route
> software breakpoint (BRK64) exception to do_debug_exception()
> 
> Signed-off-by: Sandeepa Prabhu <sandeepa.prabhu@...aro.org>
> Signed-off-by: Deepak Saxena <dsaxena@...aro.org>
> Acked-by: Will Deacon <will.deacon@....com>

Thanks. Applied.

-- 
Catalin
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