[llvm-dev] error in building llvm with default options

[David Blaikie via llvm-dev]

Various options for reducing memory usage when building LLVM:
* Don't use bfd-ld, at least use gold, probably use lld if you have it
available
* With Ninja and/or CMake there's some way to specify the maximum number of
concurrent linkactions - lower this to fit in your available memory
* If you're building with debug info: Use Split DWARF


On Thu, Jan 2, 2020 at 5:21 AM Kókai Péter via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> Hello,
>
> I cannot tell you if this is due to ram, but I had ram issue with 32
> GB + 16 core when build with default options (clang was around 1 GB
> binary), you could try to enable shared libraries(BUILD_SHARED_LIBS).
> In that case I did not run into out of memory kind of issues.
>
> --
> Kokan
>
> On Thu, 2 Jan 2020 at 14:14, Priyanka Panigrahi via llvm-dev
> <llvm-dev at lists.llvm.org> wrote:
> >
> > hello,
> >
> > I am trying to build LLVM with default options. I am getting the
> following error message after make.
> >
> > [100%] Building C object
> tools/llvm-c-test/CMakeFiles/llvm-c-test.dir/metadata.c.o
> > [100%] Building C object
> tools/llvm-c-test/CMakeFiles/llvm-c-test.dir/module.c.o
> > [100%] Building C object
> tools/llvm-c-test/CMakeFiles/llvm-c-test.dir/object.c.o
> > [100%] Building C object
> tools/llvm-c-test/CMakeFiles/llvm-c-test.dir/targets.c.o
> > [100%] Linking CXX executable ../../bin/llvm-c-test
> > clang: error: unable to execute command: Killed
> > clang: error: linker command failed due to signal (use -v to see
> invocation)
> > tools/llvm-lto/CMakeFiles/llvm-lto.dir/build.make:211: recipe for target
> 'bin/llvm-lto' failed
> > make[2]: *** [bin/llvm-lto] Error 254
> > CMakeFiles/Makefile2:21155: recipe for target
> 'tools/llvm-lto/CMakeFiles/llvm-lto.dir/all' failed
> > make[1]: *** [tools/llvm-lto/CMakeFiles/llvm-lto.dir/all] Error 2
> > [100%] Built target llvm-lipo
> > clang: error: unable to execute command: Killed
> > clang: error: linker command failed due to signal (use -v to see
> invocation)
> > tools/llc/CMakeFiles/llc.dir/build.make:212: recipe for target 'bin/llc'
> failed
> > make[2]: *** [bin/llc] Error 254
> > CMakeFiles/Makefile2:22024: recipe for target
> 'tools/llc/CMakeFiles/llc.dir/all' failed
> > make[1]: *** [tools/llc/CMakeFiles/llc.dir/all] Error 2
> > clang: error: unable to execute command: Killed
> > clang: error: linker command failed due to signal (use -v to see
> invocation)
> > tools/dsymutil/CMakeFiles/dsymutil.dir/build.make:476: recipe for target
> 'bin/dsymutil' failed
> > make[2]: *** [bin/dsymutil] Error 254
> > CMakeFiles/Makefile2:21803: recipe for target
> 'tools/dsymutil/CMakeFiles/dsymutil.dir/all' failed
> > make[1]: *** [tools/dsymutil/CMakeFiles/dsymutil.dir/all] Error 2
> > clang: error: unable to execute command: Killed
> > clang: error: linker command failed due to signal (use -v to see
> invocation)
> > tools/llvm-dwp/CMakeFiles/llvm-dwp.dir/build.make:230: recipe for target
> 'bin/llvm-dwp' failed
> > make[2]: *** [bin/llvm-dwp] Error 254
> > CMakeFiles/Makefile2:24606: recipe for target
> 'tools/llvm-dwp/CMakeFiles/llvm-dwp.dir/all' failed
> > make[1]: *** [tools/llvm-dwp/CMakeFiles/llvm-dwp.dir/all] Error 2
> > clang: error: unable to execute command: Killed
> > clang: error: linker command failed due to signal (use -v to see
> invocation)
> > tools/llvm-lto2/CMakeFiles/llvm-lto2.dir/build.make:210: recipe for
> target 'bin/llvm-lto2' failed
> > make[2]: *** [bin/llvm-lto2] Error 254
> > CMakeFiles/Makefile2:26436: recipe for target
> 'tools/llvm-lto2/CMakeFiles/llvm-lto2.dir/all' failed
> > make[1]: *** [tools/llvm-lto2/CMakeFiles/llvm-lto2.dir/all] Error 2
> > [100%] Built target lli
> > clang: error: unable to execute command: Killed
> > clang: error: linker command failed due to signal (use -v to see
> invocation)
> > tools/llvm-isel-fuzzer/CMakeFiles/llvm-isel-fuzzer.dir/build.make:238:
> recipe for target 'bin/llvm-isel-fuzzer' failed
> > make[2]: *** [bin/llvm-isel-fuzzer] Error 254
> > CMakeFiles/Makefile2:25580: recipe for target
> 'tools/llvm-isel-fuzzer/CMakeFiles/llvm-isel-fuzzer.dir/all' failed
> > make[1]: ***
> [tools/llvm-isel-fuzzer/CMakeFiles/llvm-isel-fuzzer.dir/all] Error 2
> > [100%] Built target llvm-opt-fuzzer
> > [100%] Built target llvm-c-test
> > [100%] Built target LTO
> > Makefile:151: recipe for target 'all' failed
> > make: *** [all] Error 2
> >
> > Is it because of RAM? I am trying to build in a 16GB RAM, 12 core
> processor.
> > Can anyone please help what am I missing?
> >
> > Thank you for your time.
> >
> > Priyanka
> > _______________________________________________
> > LLVM Developers mailing list
> > llvm-dev at lists.llvm.org
> > https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
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