[llvm-dev] LLD and LLVM_LINK_LLVM_DYLIB

[Pavel Labath via llvm-dev]

Try if https://reviews.llvm.org/D28397 does the trick for you.

On 6 January 2017 at 10:48, Pavel Labath <labath at google.com> wrote:
> I've dealt with similar issues on the LLDB side, I think I can help
> you with this.
>
> pl
>
> On 6 January 2017 at 09:39, Rui Ueyama via llvm-dev
> <llvm-dev at lists.llvm.org> wrote:
>> Thanks for the info. I can reproduce the issue. But because of lack of cmake
>> knowledge, I don't know how to fix that now. If no one will take a look at
>> this, I'll investigate it.
>>
>> On Fri, Jan 6, 2017 at 2:51 PM, Hahnfeld, Jonas
>> <Hahnfeld at itc.rwth-aachen.de> wrote:
>>>
>>> It builds fine but I cannot execute the resulting binary which aborts with
>>> the mentioned error.
>>> However I don't use LLVM_ENABLE_PROJECTS, I don't know if that changes the
>>> way libLLVM-4.0svn.so is linked...
>>>
>>> Cheers,
>>> Jonas
>>>
>>> Am Freitag, den 06.01.2017, 13:44 +0900 schrieb Rui Ueyama:
>>>
>>> Hi Hahnfeld,
>>>
>>> I just compiled with LLVM_LINK_LLVM_DYLIB enabled [1] and build lld with
>>> `ninja lld`. It built fine. What am I missing?
>>>
>>> [1] $ cmake -GNinja -DCMAKE_BUILD_TYPE=Debug -DLLVM_ENABLE_THREADS=On
>>> -DLLVM_ENABLE_LLD=true -DLLVM_LINK_LLVM_DYLIB=true
>>> -DLLVM_ENABLE_PROJECTS='clang;lld' ../llvm-project/llvm
>>>
>>> On Wed, Jan 4, 2017 at 10:31 PM, Hahnfeld, Jonas via llvm-dev
>>> <llvm-dev at lists.llvm.org> wrote:
>>>
>>> Hi all,
>>>
>>> I recently gave LLD a try and it definitely works fine. However one cannot
>>> build it together with LLVM_LINK_LLVM_DYLIB:
>>> ELF/Driver.cpp and ELF/DriverUtils.cpp pull in llvm/Support/CommandLine.h
>>> which defines the command line options so these global variables end up in
>>> libLLVM-4.0svn.so via liblldELF.
>>> If this shared library is then linked into bin/lld or bin/opt one gets
>>> errors because of "Option '...' registered more than once" as they are
>>> also
>>> present in the binaries themselves.
>>>
>>> Is it possible to keep the global variables for command line options out
>>> of
>>> libLLVM-4.0svn.so?
>>>
>>> Regards,
>>> Jonas
>>>
>>> --
>>> Jonas Hahnfeld, MATSE-Auszubildender
>>>
>>> IT Center
>>> Group: High Performance Computing
>>> Division: Computational Science and Engineering
>>> RWTH Aachen University
>>> Seffenter Weg 23
>>> D 52074  Aachen (Germany)
>>> Hahnfeld at itc.rwth-aachen.de
>>> www.itc.rwth-aachen.de
>>>
>>>
>>>
>>> _______________________________________________
>>> LLVM Developers mailing list
>>> llvm-dev at lists.llvm.org
>>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>>>
>>>
>>
>>
>> _______________________________________________
>> LLVM Developers mailing list
>> llvm-dev at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>>