I tried to install libbfd but it conflicts with binutils. Maybe, i hope, in 
some weeks i can return to do something on Ètoilè and i will try your 
suggestions.
Cheers,
Slex

> From: [email protected]
> Date: Sat, 16 Apr 2011 20:32:34 +0200
> To: [email protected]
> Subject: Re: [Etoile-dev] backtrace.log
> 
> Le 15 avr. 2011 à 09:49, Slex Sangiuliano a écrit :
> 
> > > From: [email protected]
> > > Date: Thu, 14 Apr 2011 18:13:17 +0200
> > > To: [email protected]
> > > Subject: Re: [Etoile-dev] backtrace.log
> > > 
> > > Le 14 avr. 2011 à 16:39, Slex Sangiuliano a écrit :
> > > 
> > > > i done the backtrace.log as normal user on the etoile_system's 
> > > > segmentation fault.
> > > 
> > > Looks the same than a bug that existed one month ago in Clang trunk (now 
> > > fixed). Which LLVM+Clang revision are you using? Which libobjc2 revision 
> > > too?
> > > 
> > > Cheers,
> > > Quentin.
> > 
> > I use clang + llvm 2.9 (trunk), libobjc2 updated  yesterday  from trunk, 
> > recompiled with gcc (i tried also with clang) (get ever segfault)
> 
> This should be ok. So it looks like the bug we had previously can still arise.
> According to the backtrace… For some reason, -[NSNotificationCenter init] 
> goes wrong and doesn't create the object for the _table ivar. _table ivar 
> corresponds to the 't' argument in the frame 0 of the backtrace. 
> You can try to debug what's going on in -[NSNotificationCenter init].
> 
> It could be a remaining issue in objc_send_initialize() or some other issue 
> such as the Clang bug I was referring too previously.
> 
> David, any other idea?
> 
> > I run testsuite in EtoileFoundation and get:
> > 
> > ukrun version 1.3 (GNUstep)
> > looking for bundle at path: 
> > /usr/home/alex/Etoile/Frameworks/EtoileFoundation/EtoileFoundation.bundle
> > 2011-04-15 09:47:26.205 ukrun[2461] Check constraint warnings: ()
> > TestStackTraceRecorder.m:28: warning: Failed, expected true, got false
> > TestStackTraceRecorder.m:35: warning: Failed, expected true, got false
> > Result: 13 classes, 98 methods, 442 tests, 2 failed
> 
> Looks like GSStackTrace doesn't work on some platforms, you are getting 
> traces with less than one frame according to the test failures.
> David told me about the same issue on FreeBSD. iirc you are using FreeBSD 
> too, right?
> 
> You can try to install libbfd as explained in ETStackTraceRecorder.h, then 
> GSStackTrace should use it to generate the trace rather than its default 
> mechanism. I'd be curious to know whether that makes the tests pass or not.
> 
> Additionally I suggest to test GSStackTrace with a test program that creates 
> an object from a DummyClass, then calls a method on this object… the method 
> would contain the code:
> 
> id stackTraceObj = [[NSClassFromString(@"GSStackTrace") alloc] init];
> NSLog(@"%@", [stackTraceObj performSelector: @selector(symbols)]);
> 
> If you can paste the result in a mail, that would be great. If the result 
> makes no sense, it would be a good idea to submit a bug report to GNUstep.
> 
> Cheers,
> Quentin.
> 
> 
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