[llvm-dev] lld out of memory

[Itaru Kitayama via llvm-dev]

Alex et al.,

For me, setting explicitly LLVM_PARALLEL_LINK_JOBS to 2 did not help, but

BUILD_SHARED_LIBS=ON

did the trick! Thanks!

On Mon, Feb 3, 2020 at 8:16 AM Alex Brachet-Mialot <
alexbrachetmialot at gmail.com> wrote:

> See here you can specify the number of concurrent link jobs
> https://llvm.org/docs/CMake.html#llvm-specific-variables with
> LLVM_PARALLEL_LINK_JOBS. Increasing swap space is also an option, and
> I have had to do this on a system with only 8gb of memory. As to why
> it work with ld.gold/bfd and not lld I couldn't say, this seems
> contrary to what most people report which is that lld uses less memory
> and is faster. Usually this list recommends lld, so I'm surprised.
> Also BUILD_SHARED_LIBS should be helpful.
>
> On Sun, Feb 2, 2020 at 6:01 PM Itaru Kitayama via llvm-dev
> <llvm-dev at lists.llvm.org> wrote:
> >
> > Hi,
> > I am seeing an LLVM build failure with recent LLD on x86 like:
> >
> > [...]
> >    lib/libLLVMCodeGen.a  lib/libLLVMBitWriter.a
> lib/libLLVMScalarOpts.a  lib/libLLVMAgg
> > ressiveInstCombine.a  lib/libLLVMInstCombine.a
> lib/libLLVMTransformUtils.a  lib/libLLVMDebugInfoDWARF.a  lib/lib
> > LLVMMCDisassembler.a  lib/libLLVMExecutionEngine.a  lib/libLLVMTarget.a
> lib/libLLVMAnalysis.a  lib/libLLVMProfil
> > eData.a  lib/libLLVMRuntimeDyld.a  lib/libLLVMObject.a
> lib/libLLVMMCParser.a  lib/libLLVMMC.a  lib/libLLVMDebugI
> > nfoCodeView.a  lib/libLLVMDebugInfoMSF.a  lib/libLLVMBitReader.a
> lib/libLLVMCore.a  lib/libLLVMRemarks.a  lib/li
> > bLLVMBitstreamReader.a  lib/libLLVMTextAPI.a  lib/libLLVMBinaryFormat.a
> lib/libLLVMSupport.a  /usr/lib64/libz.so
> >   -lrt  -ldl  -ltinfo  -lpthread  -lm  lib/libLLVMDemangle.a && :
> > LLVM ERROR: out of memory
> > Stack dump:
> > 0.      Program arguments:
> /home/usr4/c74014i/opt/clang/stable/bin/ld.lld @/tmp/response-5051e9.txt
> > LLVM ERROR: out of memory
> > clang-11: error: unable to execute command: Aborted
> > clang-11: error: linker command failed due to signal (use -v to see
> invocation)
> > [32/492] Building CXX object
> tools/llvm-cov/CMakeFiles/llvm-cov.dir/gcov.cpp.o
> >
> > As reported on Discord, switching back to ld works around this issue.
> > On my system a process gets a 6 GB of memory max can be used, and I use
> > ninja -j16.
> > _______________________________________________
> > LLVM Developers mailing list
> > llvm-dev at lists.llvm.org
> > https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
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