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Re: major 4.3.2 debugging regression
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Re: major 4.3.2 debugging regression


  • Subject: Re: major 4.3.2 debugging regression
  • From: Sean McBride <email@hidden>
  • Date: Thu, 22 Mar 2012 15:12:46 -0400
  • Organization: Rogue Research Inc.

On Thu, 22 Mar 2012 11:16:32 -0700, Chris Lattner said:

>> So I was excited to see a dot release of Xcode, hoping it would fix
>some of the many bugs... but, for me at least, it seems like a big fat
>regression so far.
>>
>> Compared to 4.3.1, linking my app seems to take 10x longer, but when
>it finally finished, Xcode just crashes when it starts the debug
>session, with:
>
>This sounds really strange.  Please do file a bug, we need to
>investigate this.

Thanks Chris and Han for your replies.

Switching from lldb to gdb solves the crash, thanks.

Additional investigation shows the culprit to be LTO.  In fact, turning off LTO also stops the lldb crash.  I went back and checked with 4.3.1 and this crash is definitely a regression.

I filed: <rdar://11101372>

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



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References: 
 >major 4.3.2 debugging regression (From: Sean McBride <email@hidden>)
 >Re: major 4.3.2 debugging regression (From: Chris Lattner <email@hidden>)

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