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List:       pykde
Subject:    Re: [PyKDE] sip crash on configure.py standard MacPython 2.3.5
From:       Ulrich Berning <ulrich.berning () t-online ! de>
Date:       2006-11-18 10:17:56
Message-ID: 455EDDD4.1050805 () t-online ! de
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Phil Thompson schrieb:

>On Friday 17 November 2006 9:09 pm, Patrick Stinson wrote:
>  
>
>>I thought I posted this once before, but I couldn't find it from
>>searching, so...
>>
>>The latest sip snapshot crashed for me during configure.py from the
>>latest PyQt4 snapshot on Tiger using the default python
>>implementation. The C++ code was generated properly.
>>
>>Exception:  EXC_BAD_ACCESS (0x0001)
>>Codes:      KERN_INVALID_ADDRESS (0x0001) at 0x53617465
>>
>>Thread 0 Crashed:
>>0   libSystem.B.dylib 	0x9000c5f8 __vfprintf + 6311
>>1   libSystem.B.dylib 	0x900e4530 vfprintf_l + 94
>>2   libSystem.B.dylib 	0x900107b9 fprintf + 73
>>3   sip               	0x000178bd apiArgument + 619
>>4   sip               	0x000179b4 apiCtor + 135
>>5   sip               	0x00017d75 generateAPI + 269
>>6   sip               	0x000035e9 main + 2090
>>7   sip               	0x000025de _start + 216
>>8   sip               	0x00002505 start + 41
>>    
>>
>
>You did post it before - but I couldn't (and still can't) reproduce the 
>problem.
>
>Can you do a bit of debugging? At first I would need to know which ctor and 
>which of the ctor's arguments was causing the problem.
>
>Phil
>
>  
>
For me, it crashes only on HP-UX and on Solaris. It crashes when 
generating the API files.

I have searched for it and just found the bug. In sipgen/transform.c in 
addDefaultCopyCtor() starting at line 1043 a structure for a default 
public copy ctor is allocated and initialized, but 
copyct->pysig.args[0].name gets never initialized. This causes the crash 
later in sipgen/export.c in apiArgument() at line 298 (The line numbers 
are based on snapshot-20061117).

Ulli

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