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

Thu Jan 2 23:21:48 PST 2020

Hello,

I am willing to work on changing the defaults reducing memory for build. Do
you have a link for discussion about the agreement?
I am just looking for pointers - as I am pretty much inexperienced with
llvm compilation - that could be checked out for finding better defaults.
Regardless I am going to check out things mentioned in this thread.

--
Kokan

On Thu, 2 Jan 2020, 10:12 pm Reid Kleckner via llvm-dev, <
llvm-dev at lists.llvm.org> wrote:

> The last time this came up, we agreed something should be done to fix the
> defaults, but nobody picked it up and ran with it. I think there was
> consensus, it just needs legwork now.
>
> On Thu, Jan 2, 2020 at 11:58 AM Aaron Smith via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>
>> There was a recent thread on reducing memory:
>> http://lists.llvm.org/pipermail/llvm-dev/2019-June/thread.html#133215
>>
>> On Thu, Jan 2, 2020 at 11:24 AM David Blaikie via llvm-dev
>> <llvm-dev at lists.llvm.org> wrote:
>> >
>> > 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
>> >> _______________________________________________
>> >> LLVM Developers mailing list
>> >> llvm-dev at lists.llvm.org
>> >> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>> >
>> > _______________________________________________
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