linux-kernel - Re: nios2: is the ptrace ABI correct?

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Message-ID: <54EC98A9.9080203@vanguardiasur.com.ar>
Date:	Tue, 24 Feb 2015 12:28:41 -0300
From:	Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
To:	Arnd Bergmann <arnd@...db.de>
CC:	Tobias Klauser <tklauser@...tanz.ch>,
	Chung-Ling Tang <cltang@...esourcery.com>,
	Walter Goossens <waltergoossens@...e.nl>,
	Ley Foon Tan <lftan@...era.com>, linux-arch@...r.kernel.org,
	"nios2-dev@...ts.rocketboards.org" <nios2-dev@...ts.rocketboards.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: nios2: is the ptrace ABI correct?

Hi Arnd,

On 02/24/2015 05:54 AM, Arnd Bergmann wrote:
> On Tuesday 24 February 2015 00:04:21 Ezequiel Garcia wrote:
>> So, tried a different approach and removed pt_regs from the UAPI ptrace.h,
>> replacing it with a new user_regs that describes how registers are passed
>> to user. This however is also problematic, as pt_regs is already used
>> by glibc (not really sure what for).
>>
> 
> I've looked at glibc and could not find a use for pt_regs there. Where
> did you find it? It's quite possible that it's incorrect as well
> if the structures don't match.
> 

Gah, no, you are right. I got confused.

So it would be OK to avoid remove pt_regs from the uapi headers?
How does this affect the signal handling nios2 implementation?

-- 
Ezequiel Garcia, VanguardiaSur
www.vanguardiasur.com.ar
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