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Re: debugging a 64 bit app

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Re: debugging a 64 bit app

Subject: Re: debugging a 64 bit app
From: Nick Zitzmann <email@hidden>
Date: Thu, 27 Aug 2009 15:39:42 -0600


On Aug 27, 2009, at 3:23 PM, email@hidden wrote:

what is the proper way to see stack parameters with cocoa 64 bit apps with gdb?


<http://www.x86-64.org/documentation/abi.pdf>

If you're developing for X86-64, you really ought to read the part about calling conventions. Basically, unless you're hitting a case where class MEMORY is hit when calling a function (which is not common, especially in objc programs), then argument 0 (self) will be in $rdi, argument 1 (_cmd) will be in $rsi, etc...

Nick Zitzmann
<http://www.chronosnet.com/>

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