[llvm-dev] LLD and LLVM_LINK_LLVM_DYLIB

[Hahnfeld, Jonas via llvm-dev]

Wow, that was fast! Unfortunately I probably won't have enough to time to test 
again until mid of next week :-/

> -----Original Message-----
> From: Pavel Labath [mailto:labath at google.com]
> Sent: Friday, January 06, 2017 2:05 PM
> To: Hahnfeld, Jonas
> Cc: llvm-dev at lists.llvm.org; Rui Ueyama
> Subject: Re: [llvm-dev] LLD and LLVM_LINK_LLVM_DYLIB
>
> 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
> >>
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