[cfe-dev] Building Clang on Windows

[Zachary Turner via cfe-dev]

Well, I am actually getting this now even with ninja.

FINAL LINK: command
"C:\PROGRA~2\MICROS~1\2017\PROFES~1\VC\Tools\MSVC\1415~1.267\bin\Hostx86\x86\link.exe
/nologo
tools\llvm-opt-fuzzer\CMakeFiles\llvm-opt-fuzzer.dir\DummyOptFuzzer.cpp.obj
tools\llvm-opt-fuzzer\CMakeFiles\llvm-opt-fuzzer.dir\llvm-opt-fuzzer.cpp.obj
tools\llvm-opt-fuzzer\CMakeFiles\llvm-opt-fuzzer.dir\__\__\resources\windows_version_resource.rc.res
/out:bin\llvm-opt-fuzzer.exe /implib:lib\llvm-opt-fuzzer.lib
/pdb:bin\llvm-opt-fuzzer.pdb /version:0.0 /machine:X86 /STACK:10000000
/debug /INCREMENTAL /subsystem:console lib\LLVMX86CodeGen.lib
lib\LLVMX86AsmParser.lib lib\LLVMX86AsmPrinter.lib lib\LLVMX86Desc.lib
lib\LLVMX86Disassembler.lib lib\LLVMX86Info.lib lib\LLVMX86Utils.lib
lib\LLVMAnalysis.lib lib\LLVMBitReader.lib lib\LLVMBitWriter.lib
lib\LLVMCodeGen.lib lib\LLVMCore.lib lib\LLVMCoroutines.lib lib\LLVMipo.lib
lib\LLVMIRReader.lib lib\LLVMAggressiveInstCombine.lib
lib\LLVMInstCombine.lib lib\LLVMInstrumentation.lib lib\LLVMFuzzMutate.lib
lib\LLVMMC.lib lib\LLVMObjCARCOpts.lib lib\LLVMScalarOpts.lib
lib\LLVMSupport.lib lib\LLVMTarget.lib lib\LLVMTransformUtils.lib
lib\LLVMVectorize.lib lib\LLVMPasses.lib lib\LLVMAsmPrinter.lib
lib\LLVMGlobalISel.lib lib\LLVMSelectionDAG.lib lib\LLVMX86AsmPrinter.lib
lib\LLVMX86Utils.lib lib\LLVMMCDisassembler.lib lib\LLVMCodeGen.lib
lib\LLVMipo.lib lib\LLVMBitWriter.lib lib\LLVMIRReader.lib
lib\LLVMAsmParser.lib lib\LLVMLinker.lib lib\LLVMInstrumentation.lib
lib\LLVMScalarOpts.lib lib\LLVMAggressiveInstCombine.lib
lib\LLVMInstCombine.lib lib\LLVMTarget.lib lib\LLVMVectorize.lib
lib\LLVMTransformUtils.lib lib\LLVMAnalysis.lib lib\LLVMObject.lib
lib\LLVMBitReader.lib lib\LLVMMCParser.lib lib\LLVMMC.lib
lib\LLVMDebugInfoCodeView.lib lib\LLVMDebugInfoMSF.lib
lib\LLVMProfileData.lib lib\LLVMCore.lib lib\LLVMBinaryFormat.lib
lib\LLVMSupport.lib psapi.lib shell32.lib ole32.lib uuid.lib advapi32.lib
delayimp.lib -delayload:shell32.dll -delayload:ole32.dll
lib\LLVMDemangle.lib kernel32.lib user32.lib gdi32.lib winspool.lib
shell32.lib ole32.lib oleaut32.lib uuid.lib comdlg32.lib advapi32.lib
/MANIFEST
/MANIFESTFILE:tools\llvm-opt-fuzzer\CMakeFiles\llvm-opt-fuzzer.dir/intermediate.manifest
tools\llvm-opt-fuzzer\CMakeFiles\llvm-opt-fuzzer.dir/manifest.res" failed
(exit code 1102) with the following output:
LINK : fatal error LNK1102: out of memory

I'll dig in some.

On Sun, Oct 7, 2018 at 4:42 PM Zachary Turner <zturner at google.com> wrote:

> On Sun, Oct 7, 2018 at 4:30 PM Fábio Picchi via cfe-dev <
> cfe-dev at lists.llvm.org> wrote:
>
>> > The problem is that by default VS2017 builds Clang in parallel to how
>> many cores you have
>>
>> That would explain my problem in building clang then as I have an eight
>> core Ryzen 7 1700X with only 8GB of RAM. I will try to build with parallel
>> building off...
>>
>> But did ninja ignore these build options? Because I was able to build
>> clang using it without any problem.
>>
>> I will look into it and post some results tomorrow.
>>
>
> Ninja is not MSBuild, it has its own algorithm for scheduling parallel
> jobs (you can control this with the -j option, but by default it picks
> something sane).  You can see what happens if you pass -j 8.
>
> I still don't see how your situation would result in an out of memory
> error.  How much physical memory your system has is totally irrelevant, you
> still cannot "run out of memory" from the process's point of view unless
> you also run out of disk space for swap, which is extremely unlikely unless
> you have configured a very small swap.
>
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