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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: "Sean McBride" <email@hidden>
  • Date: Thu, 27 Aug 2009 17:39:18 -0400
  • Organization: Rogue Research Inc.

On 8/27/09 2:23 PM, email@hidden said:

>with a 32 bit app, when i hit a breakpoint in gdb, i could select a
>stack frame and enter the following into the gdb console:
>
>	(gdb) po *(int *)($ebp+<XXX>)
>
>where <XXX> was 8 to see the receiver of the message, 16 to see the
>first "meaningful" parameter, etc.
>
>however, i'm not building a 64 bit app and using synthesized iVars
>and when i type the above on the gdb console, i get:
>
>	Argument to arithmetic operation not a number or boolean.
>
>what is the proper way to see stack parameters with cocoa 64 bit apps
>with gdb?

See:
<http://www.clarkcox.com/blog/2009/02/04/inspecting-obj-c-parameters-in-gdb/>

--
____________________________________________________________
Sean McBride, B. Eng                 email@hidden
Rogue Research                        www.rogue-research.com
Mac Software Developer              Montréal, Québec, Canada


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 >debugging a 64 bit app (From: "email@hidden" <email@hidden>)

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