linux-kernel - Re: [PATCH] ptrace: add ability to get clear_tid

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Message-ID: <20120208181222.GA12787@host2.jankratochvil.net>
Date:	Wed, 8 Feb 2012 19:12:22 +0100
From:	Jan Kratochvil <jan.kratochvil@...hat.com>
To:	Andrew Vagin <avagin@...il.com>
Cc:	Pedro Alves <palves@...hat.com>, Oleg Nesterov <oleg@...hat.com>,
	Pavel Emelyanov <xemul@...allels.com>,
	Tejun Heo <tj@...nel.org>, Andrew Vagin <avagin@...nvz.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Cyrill Gorcunov <gorcunov@...nvz.org>
Subject: Re: [PATCH] ptrace: add ability to get clear_tid_address

On Wed, 08 Feb 2012 14:41:45 +0100, Andrew Vagin wrote:
> I want to say, that when you have trouble with child_tid_address,
> you may want to get it.
> If the code is your, you may get it via prctl, but if it's not, what
> will you do?

GDB does PTRACE_ARCH_PRCTL (amd64-linux-nat.c) - without inserting any code
into the debuggee.  How it can be simplified more?


Jan
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