linux-kernel - Re: [PATCH 5/14] blackfin: use generic ptrace

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Message-ID: <8bd0f97a1002031136h2573b05cr8dada3bd78ffaa38@mail.gmail.com>
Date:	Wed, 3 Feb 2010 14:36:47 -0500
From:	Mike Frysinger <vapier.adi@...il.com>
To:	Christoph Hellwig <hch@....de>
Cc:	roland@...hat.com, oleg@...hat.com, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org
Subject: Re: [PATCH 5/14] blackfin: use generic ptrace_resume code

On Tue, Feb 2, 2010 at 15:29, Mike Frysinger wrote:
> On Tue, Feb 2, 2010 at 13:59, Christoph Hellwig wrote:
>> Use the generic ptrace_resume code for PTRACE_SYSCALL, PTRACE_CONT,
>> PTRACE_KILL and PTRACE_SINGLESTEP.  This implies defining
>> arch_has_single_step in <asm/ptrace.h> and implementing the
>> user_enable_single_step and user_disable_single_step functions, which
>> also causes the breakpoint information to be cleared on fork, which
>> could be considered a bug fix.
>>
>> Also the TIF_SYSCALL_TRACE thread flag is now cleared on PTRACE_KILL
>> which it previously wasn't which is consistent with all architectures
>> using the modern ptrace code.
>
> i have local code in the Blackfin tree that does part of this patch
> (and has been tested), so i'll split this patch apart and merge into
> my tree.  thanks!

i added tracehook support to Blackfin recently, so that covered all
the new functions here.  i just had to drop the handling of the
PTRACE_xxx things that common code already does.

when did you want to push through these updates ?  i was planning on
sending these ptrace() updates through the Blackfin tree as part of my
2.6.34 queue.  i'm guessing you didnt want this stuff in 2.6.33 ...
-mike
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