[PATCH] Support for building using WSL (Windows Subsystem for Linux) on Windows

[Erik Joelsson]

On 2018-12-14 10:28, Magnus Ihse Bursie wrote:
>
>
> On 2018-12-14 19:23, Erik Joelsson wrote:
>> Hello,
>>
>> I took your patch for a spin, and configure passes, but I get the 
>> same build error I got with my patch:
>>
>> fatal error C1083: Cannot open compiler intermediate file: 
>> 'd:\erik\jdk-wsl\build\windows-x86_64-server-release\hotspot\variant-server\libjvm\objs\build_libjvm.pch': 
>> No such file or directory
>>
>> This is repeated for every C++ file in Hotspot. I see two issues 
>> here. First of all, I need to figure out why the compiler will not 
>> find the file, which is clearly there. Second, why isn't this failure 
>> picked up by make? Somewhere the return value of cl.exe is disappearing.
>
> Can you build without errors if you disable PCH?
>
> Also, a wild guess: can it be related to file permissions? Can you 
> read the file properly from both WSL and Windows?
>
It is readable, but it could be something with case. The file is 
actually called BUILD_LIBJVM.pch, but that is also how it's given to the 
compiler command line. Here is the output from DEBUG_FIXPATH:

Compiling ad_x86_expand.cpp (for jvm.dll)
fixpath input line 
 >-wsl\build\windows-x86_64-server-release\configure-support\bin\fixpath.exe -w /mnt/c/PROGRA~2/MICROS~1/2017/PROFES~1/VC/Tools/MSVC/1416~1.270/bin/Hostx86/x64/cl.exe -showIncludes -Fp/mnt/d/erik/jdk-wsl/build/windows-x86_64-server-release/hotspot/variant-server/libjvm/objs/BUILD_LIBJVM.pch -Yuprecompiled.hpp -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -DNOMINMAX -DWIN32_LEAN_AND_MEAN -nologo -MD -MP -D_WINDOWS -DWIN32 -D_JNI_IMPLEMENTATION_ -W3 -DVM_LITTLE_ENDIAN -D_LP64=1 -DPRODUCT -DTARGET_ARCH_x86 -DINCLUDE_SUFFIX_OS=_windows -DINCLUDE_SUFFIX_CPU=_x86 -DINCLUDE_SUFFIX_COMPILER=_visCPP -DTARGET_COMPILER_visCPP -DAMD64 "-DHOTSPOT_LIB_ARCH=\"amd64\"" -DCOMPILER1 -DCOMPILER2 -DINCLUDE_ZGC=0 -I/mnt/d/erik/jdk-wsl/build/windows-x86_64-server-release/hotspot/variant-server/gensrc/adfiles -I/mnt/d/erik/jdk-wsl/closed/src/hotspot/share -I/mnt/d/erik/jdk-wsl/open/src/hotspot/share -I/mnt/d/erik/jdk-wsl/open/src/hotspot/os/windows -I/mnt/d/erik/jdk-wsl/open/src/hotspot/cpu/x86 -I/mnt/d/erik/jdk-wsl/open/src/hotspot/os_cpu/windows_x86 -I/mnt/d/erik/jdk-wsl/build/windows-x86_64-server-release/hotspot/variant-server/gensrc -I/mnt/d/erik/jdk-wsl/open/src/hotspot/share/precompiled -I/mnt/d/erik/jdk-wsl/open/src/hotspot/share/include -I/mnt/d/erik/jdk-wsl/open/src/hotspot/os/windows/include -I/mnt/d/erik/jdk-wsl/build/windows-x86_64-server-release/support/modules_include/java.base -I/mnt/d/erik/jdk-wsl/build/windows-x86_64-server-release/support/modules_include/java.base/win32 -I/mnt/d/erik/jdk-wsl/open/src/java.base/share/native/libjimage -Z7 -d2Zi+ -wd4800 -WX -I/mnt/c/PROGRA~2/MICROS~1/2017/PROFES~1/VC/Tools/MSVC/1416~1.270/atlmfc/include -I/mnt/c/PROGRA~2/MICROS~1/2017/PROFES~1/VC/Tools/MSVC/1416~1.270/include -I/mnt/c/PROGRA~2/WI3CF2~1/10/Include/100177~1.0/ucrt -I/mnt/c/PROGRA~2/WI3CF2~1/10/Include/100177~1.0/shared -I/mnt/c/PROGRA~2/WI3CF2~1/10/Include/100177~1.0/um -I/mnt/c/PROGRA~2/WI3CF2~1/10/Include/100177~1.0/winrt -I/mnt/c/PROGRA~2/WI3CF2~1/10/Include/100177~1.0/cppwinrt -O2 -Oy- "-DTHIS_FILE=\"\"" -c -Fo/mnt/d/erik/jdk-wsl/build/windows-x86_64-server-release/hotspot/variant-server/libjvm/objs/ad_x86_expand.obj /mnt/d/erik/jdk-wsl/build/windows-x86_64-server-release/hotspot/variant-server/gensrc/adfiles/ad_x86_expand.cpp<
fixpath using wsl mode, with path list:
fixpath converted line 
 >c:/PROGRA~2/MICROS~1/2017/PROFES~1/VC/Tools/MSVC/1416~1.270/bin/Hostx86/x64/cl.exe -showIncludes -Fpd:/erik/jdk-wsl/build/windows-x86_64-server-release/hotspot/variant-server/libjvm/objs/BUILD_LIBJVM.pch -Yuprecompiled.hpp -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -DNOMINMAX -DWIN32_LEAN_AND_MEAN -nologo -MD -MP -D_WINDOWS -DWIN32 -D_JNI_IMPLEMENTATION_ -W3 -DVM_LITTLE_ENDIAN -D_LP64=1 -DPRODUCT -DTARGET_ARCH_x86 -DINCLUDE_SUFFIX_OS=_windows -DINCLUDE_SUFFIX_CPU=_x86 -DINCLUDE_SUFFIX_COMPILER=_visCPP -DTARGET_COMPILER_visCPP -DAMD64 "-DHOTSPOT_LIB_ARCH=\"amd64\"" -DCOMPILER1 -DCOMPILER2 -DINCLUDE_ZGC=0 -Id:/erik/jdk-wsl/build/windows-x86_64-server-release/hotspot/variant-server/gensrc/adfiles -Id:/erik/jdk-wsl/closed/src/hotspot/share -Id:/erik/jdk-wsl/open/src/hotspot/share -Id:/erik/jdk-wsl/open/src/hotspot/os/windows -Id:/erik/jdk-wsl/open/src/hotspot/cpu/x86 -Id:/erik/jdk-wsl/open/src/hotspot/os_cpu/windows_x86 -Id:/erik/jdk-wsl/build/windows-x86_64-server-release/hotspot/variant-server/gensrc -Id:/erik/jdk-wsl/open/src/hotspot/share/precompiled -Id:/erik/jdk-wsl/open/src/hotspot/share/include -Id:/erik/jdk-wsl/open/src/hotspot/os/windows/include -Id:/erik/jdk-wsl/build/windows-x86_64-server-release/support/modules_include/java.base -Id:/erik/jdk-wsl/build/windows-x86_64-server-release/support/modules_include/java.base/win32 -Id:/erik/jdk-wsl/open/src/java.base/share/native/libjimage -Z7 -d2Zi+ -wd4800 -WX -Ic:/PROGRA~2/MICROS~1/2017/PROFES~1/VC/Tools/MSVC/1416~1.270/atlmfc/include -Ic:/PROGRA~2/MICROS~1/2017/PROFES~1/VC/Tools/MSVC/1416~1.270/include -Ic:/PROGRA~2/WI3CF2~1/10/Include/100177~1.0/ucrt -Ic:/PROGRA~2/WI3CF2~1/10/Include/100177~1.0/shared -Ic:/PROGRA~2/WI3CF2~1/10/Include/100177~1.0/um -Ic:/PROGRA~2/WI3CF2~1/10/Include/100177~1.0/winrt -Ic:/PROGRA~2/WI3CF2~1/10/Include/100177~1.0/cppwinrt -O2 -Oy- "-DTHIS_FILE=\"\"" -c -Fod:/erik/jdk-wsl/build/windows-x86_64-server-release/hotspot/variant-server/libjvm/objs/ad_x86_expand.obj d:/erik/jdk-wsl/build/windows-x86_64-server-release/hotspot/variant-server/gensrc/adfiles/ad_x86_expand.cpp<

An interesting note is that make is rebuilding the pch file on every 
invocation so it too has trouble finding the file.

/Erik