llvm dev - Nov 2011 - [LLVMdev] LLVM: segfault while modifying a thread-local global variable

In my case the LLVM is built with assertions, but this doesn't help. From
your answer I conclude that thread-local globals are fully implemented in
x86 JIT. So this is strange...

2011/11/9 Duncan Sands <baldrick at free.fr>
> Hi Semion,
>
> > Really strange situation: when I modify a thread-local GlobalVariable
I
> get a
> > segfault. It seems to be a bug, doesn't it? Can u suggest me some
> solution?
>
> build LLVM with assertions enabled.  Then you may well get an assertion
> failure
> with a helpful error message rather than an obscure crash.
>
> Ciao, Duncan.
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
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Hi Semion,
> In my case the LLVM is built with assertions, but this doesn't help.
From your
> answer I conclude that thread-local globals are fully implemented in x86
JIT.
you didn't mention the JIT.  You didn't give any details at all! 
That's why I
was only able to make a generic suggestion.  Don't read too much into it.

Ciao, Duncan.

  So
> this is strange...
>
> 2011/11/9 Duncan Sands <baldrick at free.fr <mailto:baldrick at
free.fr>>
>
>     Hi Semion,
>
>      > Really strange situation: when I modify a thread-local
GlobalVariable I get a
>      > segfault. It seems to be a bug, doesn't it? Can u suggest me
some solution?
>
>     build LLVM with assertions enabled.  Then you may well get an assertion
failure
>     with a helpful error message rather than an obscure crash.
>
>     Ciao, Duncan.
>     _______________________________________________
>     LLVM Developers mailing list
>     LLVMdev at cs.uiuc.edu <mailto:LLVMdev at cs.uiuc.edu>
http://llvm.cs.uiuc.edu
>     http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
>

OK, that's my fault. I'm running jitted code on linux x86.

2011/11/9 Duncan Sands <baldrick at free.fr>
> Hi Semion,
>
>
>  In my case the LLVM is built with assertions, but this doesn't help.
From
>> your
>> answer I conclude that thread-local globals are fully implemented in
x86
>> JIT.
>>
>
> you didn't mention the JIT.  You didn't give any details at all! 
That's
> why I
> was only able to make a generic suggestion.  Don't read too much into
it.
>
> Ciao, Duncan.
>
>  So
>
>> this is strange...
>>
>> 2011/11/9 Duncan Sands <baldrick at free.fr <mailto:baldrick at
free.fr>>
>>
>>
>>    Hi Semion,
>>
>>     > Really strange situation: when I modify a thread-local
>> GlobalVariable I get a
>>     > segfault. It seems to be a bug, doesn't it? Can u suggest
me some
>> solution?
>>
>>    build LLVM with assertions enabled.  Then you may well get an
>> assertion failure
>>    with a helpful error message rather than an obscure crash.
>>
>>    Ciao, Duncan.
>>    ______________________________**_________________
>>    LLVM Developers mailing list
>>    LLVMdev at cs.uiuc.edu <mailto:LLVMdev at cs.uiuc.edu>
>> http://llvm.cs.uiuc.edu
>>   
http://lists.cs.uiuc.edu/**mailman/listinfo/llvmdev<http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev>
>>
>>
>>
>
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