[llvm-dev] LLJIT vs. thread-local storage

Praveen Velliengiri via llvm-dev llvm-dev at lists.llvm.org
Fri Dec 20 06:52:42 PST 2019

Oh, I think Linux don't have support for TLS.

On Fri, 20 Dec 2019 at 20:19, Geoff Levner <glevner at gmail.com> wrote:

> Argh. Thanks for the info. We're on Linux.
> On Fri, Dec 20, 2019 at 3:46 PM Praveen Velliengiri <
> praveenvelliengiri at gmail.com> wrote:
>> Hi Geoff,
>> Gathering from past, I remember that the ORCv2 doesn't support thread
>> local variable but not sure what is the current status now. What platform
>> you are on?
>> CC'ed (Lang hames) he knows exactly what is the status.
>> On Fri, 20 Dec 2019 at 18:39, Geoff Levner via llvm-dev <
>> llvm-dev at lists.llvm.org> wrote:
>>> I am in the process of porting our ORC code to ORC v2 and LLJIT. Now
>>> that I have worked around a problem getting global constructors to be
>>> called, everything seems to work unless a module declares a static
>>> thread-local variable. In that case I get a "JIT session error" saying that
>>> the symbol __emutls_v.xyz was not found (substitute the mangled
>>> variable name for "xyz").
>>> Does that mean anything to anybody out there?
>>> (I don't know if it's relevant, but we are using LLVM 8, and we are
>>> using Clang to compile C++ modules that are all put into a single JITDylib.)
>>> Geoff
>>> _______________________________________________
>>> LLVM Developers mailing list
>>> llvm-dev at lists.llvm.org
>>> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
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