[LLVMdev] LLVM: segfault while modifying a thread-local global variable

[Semion Prihodko]

I use LLVM 2.9. By the way, I have another question. Is landingpad
instruction is already implemented in JIT or I should use the old approach
with llvm.eh instrinsics? Thanks.

2011/11/9 Eric Christopher <echristo at apple.com>

> Which version of LLVM? At any rate I don't recall TLS working for the JIT.
> It may take some work.
>
> -eric
>
>
> On Nov 9, 2011, at 4:46 AM, Semion Prihodko wrote:
>
> 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.
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>>>
>>>
>>>
>>
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