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From: michael@walle.cc (Michael Walle)
To: linux-arm-kernel@lists.infradead.org
Subject: arm and patch phys offset
Date: Mon, 12 Dec 2011 22:55:40 +0100	[thread overview]
Message-ID: <201112122255.40092.michael@walle.cc> (raw)
In-Reply-To: <20111212213450.GD20178@n2100.arm.linux.org.uk>

Am Montag 12 Dezember 2011, 22:34:50 schrieb Russell King - ARM Linux:
> Why do you say that, and what you do mean by "expect the addresses" ?
> Presumably you're saying the addresses will be different.  Why do you
> think that?
> Are you saying that you find that the address of these 'unconverted'
> instructions change each time you run your debug function?
i see different output from the debug function everytime i change the source 
code and recompile the kernel. restarting the same binary results in the same 
unconverted instructions.

> > If it would be some memory corruption, shouldn't the table or the p2v/v2p
> > stubs be corrupt? But the non-patched entries always points to correct
> > v2p/p2v calls and in every case there is the unpatched add/sub
> > instruction.
> 
> Have you tried dumping out the entire instruction as well as the
> address of the unconverted instruction?
yes, the addresses make sense as i can see the unpatched instruction at that 
address in the disassembly and the instruction at these addresses are always:

add/sub rX, rY, #81000000

> Are you running a Thumb-2 kernel?  Which kernel are you running?
what do you mean by which kernel?
linus' master from yesterday, ARCH_KIRKWOOD=y
CONFIG_THUMB2_KERNEL is not set


-- 
Michael

  reply	other threads:[~2011-12-12 21:55 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <201112112255.32534.michael@walle.cc>
2011-12-12  0:53 ` arm and patch phys offset Nicolas Pitre
2011-12-12 21:12   ` Michael Walle
2011-12-12 21:34     ` Russell King - ARM Linux
2011-12-12 21:55       ` Michael Walle [this message]
2011-12-12 22:02         ` Russell King - ARM Linux
2011-12-12 22:09           ` Michael Walle
2011-12-12 22:21             ` Russell King - ARM Linux
2011-12-12 22:56               ` Nicolas Pitre
2011-12-13  0:08                 ` Michael Walle
2011-12-13  4:01                   ` Nicolas Pitre
2011-12-13 23:17                     ` Michael Walle
2011-12-18 11:58                       ` Tixy
2012-01-03  7:15                   ` Linus Walleij
2012-01-03  7:41                     ` Michael Walle
2011-12-12 21:38     ` Nicolas Pitre
2011-12-12 21:57       ` Russell King - ARM Linux
2011-12-12 22:25         ` Nicolas Pitre
2011-12-12 22:06       ` Michael Walle

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