linux-kernel - Re: [PATCH 04/28] nios2: Exception handling

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Date:	Thu, 24 Apr 2014 14:04:39 +0800
From:	Ley Foon Tan <lftan@...era.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Linux-Arch <linux-arch@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	cltang@...esourcery.com
Subject: Re: [PATCH 04/28] nios2: Exception handling

On Wed, Apr 23, 2014 at 8:23 PM, Arnd Bergmann <arnd@...db.de> wrote:

>> >> We really shouldn't be doing new architecture specific procfs files
>> >> any more. I suggest you drop this one for now, and add back the
>> >> functionality using perf or ftrace at a later point.
>> >
>> > Okay, will remove this.
>>
>> MIPS and powerpc handle this through debugfs, cfr.
>> arch/mips/kernel/unaligned.c and arch/powerpc/kernel/traps.c.
>
> Ah, right, that would work too. Being able to use perf from user
> space sounds more flexible though. It's certainly something that
> can be decided later.
Yes, we can add this back through debugfs or perf in later.

Regards
Ley Foon
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