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Re: Gdbserver syscall clobber

From: Andreas Schwab <schwab at suse dot de>
To: Bill Gatliff <bgat at billgatliff dot com>
Cc: gdb at sourceware dot org, linuxppc-embedded at ozlabs dot org
Date: Mon, 23 Jul 2007 18:19:37 +0200
Subject: Re: Gdbserver syscall clobber
References: <469B922D.3050701@billgatliff.com> <20070716155348.GA5281@caradoc.them.org> <469E550E.5080905@billgatliff.com> <20070718183143.GA25324@caradoc.them.org> <46A4D1F5.1060005@billgatliff.com>

Bill Gatliff <bgat@billgatliff.com> writes:

> Daniel Jacobowitz wrote:
>> On Wed, Jul 18, 2007 at 12:59:42PM -0500, Bill Gatliff wrote:
>>   
>>> Now, I'm a little rusty on PPC asm (I've been doing a lot of ARM
>>> lately), but it looks to me like the kernel is setting bit 0 in CR0
>>> (oris r10, r10, 0x1000) a.k.a LT, but the user side is looking at CR0
>>> (bnslr+) bit 3 a.k.a. SO.

Bits are numbered from left to right, thus 0x10000000 is bit 3 of CR0

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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"And now for something completely different."

References:
- Gdbserver syscall clobber
  - From: Bill Gatliff
- Re: Gdbserver syscall clobber
  - From: Daniel Jacobowitz
- Re: Gdbserver syscall clobber
  - From: Bill Gatliff
- Re: Gdbserver syscall clobber
  - From: Daniel Jacobowitz
- Re: Gdbserver syscall clobber
  - From: Bill Gatliff

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