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

Andrew Luo andrewluotechnologies at outlook.com
Wed Dec 19 18:40:17 UTC 2018 

Hi Erik,

Which target are you using (make exploded-image?)?  I never saw this error while building on my machine (I've built about 10 times now, I'm on Windows 10 1809 for what it's worth).  Perhaps I can try to reproduce this on my system as well...

Thanks,

-Andrew

-----Original Message-----
From: Erik Joelsson <erik.joelsson at oracle.com> 
Sent: Wednesday, December 19, 2018 8:28 AM
To: Andrew Luo <andrewluotechnologies at outlook.com>; Magnus Ihse Bursie <magnus.ihse.bursie at oracle.com>
Cc: build-dev at openjdk.java.net
Subject: Re: [PATCH] Support for building using WSL (Windows Subsystem for Linux) on Windows

I'm now seeing intermittent build failures that look like this:

make[3]: *** No rule to make target
'/mnt/d/erik/jdk-sandbox/open/src/java.security.jgss/share/classes/sun/security/krb5/internal/TGSReq.java',
needed by
'/mnt/d/erik/jdk-sandbox/build/windows-x86_64-server-release/jdk/modules/java.security.jgss/_the.java.security.jgss_batch'. 
Stop.

The particular file that's missing varies, and deleting the output dir for that module and rebuild works. The common pattern seems to be upper case letters in the file name of the source file.

I will investigate some more.

/Erik

On 2018-12-19 06:18, Erik Joelsson wrote:
> I can also report that on the Windows 10 machine I'm testing this on, 
> "make bundles" on Cygwin took 12m56s and in WSL 8m39s, so a pretty big 
> improvement!
>
> /Erik
>
> On 2018-12-19 03:45, Erik Joelsson wrote:
>> Hello,
>>
>> On 2018-12-19 00:19, Erik Joelsson wrote:
>>> Hello Andrew,
>>>
>>> On 2018-12-18 12:45, Andrew Luo wrote:
>>>> Hi Erik/Magnus,
>>>>
>>>> I've attached my latest changes:
>>>>
>>>> 1. Fixed a file I forgot to revert in my previous change while 
>>>> trying something out...
>>>> 2. Added information about case sensitivity of the OpenJDK build 
>>>> directory (yes, I did use the make target to generate the HTML 
>>>> file) 3. Fixed Cygwin (hopefully, I don't have a Cygwin environment 
>>>> to verify this)
>>>
>>> I will take this patch for a spin and see.
>>>
>> After applying a fix for
>> https://bugs.openjdk.java.net/browse/JDK-8215635, I managed to build 
>> everything as well. I pushed some minor adjustments to make Cygwin 
>> work too.
>>
>> I will need to take this through more thorough testing.
>>
>> /Erik
>>
>>>> With this patch I've tested the following targets:
>>>> exploded-image (default): Works
>>>> images: Works
>>>> bundles: Works
>>>> test: Completes, but some tests fail.
>>>>
>>>> I didn't go through the test failures completely, but all of the 
>>>> ones I did see are due to attempting to call CreateProcess with 
>>>> "sh" as the argument (in jtreg:
>>>> http://hg.openjdk.java.net/code-tools/jtreg/file/36c592d2f544/src/share/classes/com/sun/javatest/regtest/exec/ShellAction.java). 
>>>> This isn't supported in Windows, perhaps using a Linux boot JDK 
>>>> would fix this (but might break other things).  I can look into 
>>>> fixing it (on WSL you can call "wsl sh", for example), but I think 
>>>> since it's a completely separate repo anyways, it would be best to 
>>>> take up those changes separately.  Let me know your thoughts on this.
>>>
>>> Ah, if a Java process is launched from a Cygwin environment, it will 
>>> have the unix/cygwin tools in the path so those can be launched 
>>> directly. When running in WSL, it will launch the Windows binary 
>>> java.exe in the Windows environment so there is no trace of WSL. I 
>>> agree that we can look into this later, but we need to note that 
>>> running tests is not completely supported in WSL.
>>>
>>> /Erik
>>>
>>>> Otherwise, let me know if there is any other comments/suggestions 
>>>> before we can merge this into the main repository.
>>>>
>>>> Thanks,
>>>>
>>>> -Andrew
>>>>
>>>> -----Original Message-----
>>>> From: Erik Joelsson <erik.joelsson at oracle.com>
>>>> Sent: Monday, December 17, 2018 9:52 AM
>>>> To: Andrew Luo <andrewluotechnologies at outlook.com>; Magnus Ihse 
>>>> Bursie <magnus.ihse.bursie at oracle.com>
>>>> Cc: build-dev at openjdk.java.net
>>>> Subject: Re: [PATCH] Support for building using WSL (Windows 
>>>> Subsystem for Linux) on Windows
>>>>
>>>> Hello Andrew,
>>>>
>>>> On 2018-12-16 00:01, Andrew Luo wrote:
>>>>> For me, /mnt/c was already mounted case insensitive.  Maybe this 
>>>>> is only the default for the C:\ drive though (or perhaps depends 
>>>>> on your Windows/WSL version?)
>>>> I think the default is "dir", which will cause any new directory 
>>>> created from WSL to be case sensitive, so I would say this needs to 
>>>> be documented in building.md.
>>>>> Anyways, I've synced down the sandbox and added a new patch to 
>>>>> address some of the feedback (and some of my own minor enhancements):
>>>>>
>>>>> 1. Got rid of EXECUTABLE_SUFFIX in favor of EXE_SUFFIX, which had 
>>>>> to move earlier in the sequence 2. Use $EXE_SUFFIX instead of .exe 
>>>>> literal per Magnus' feedback 3. Added information about WSL 
>>>>> versioning to build, similar to Cygwin 4. Updated building.md and 
>>>>> building.html with WSL build instructions
>>>> Nice! I've applied and pushed this patch to the sandbox. Just to be 
>>>> sure, did you generate the html version with pandoc using "make 
>>>> update-build-docs"? If not, we will need to make sure that is done 
>>>> before the final push.
>>>>
>>>> I noticed trailing whitespace in some files. Jcheck will reject 
>>>> that in most types of files but in the build, we are a bit on our 
>>>> own trying to avoid it.
>>>>
>>>>> (By the way, you misspelled my name in your sandbox commit): 
>>>>> http://hg.openjdk.java.net/jdk/sandbox/rev/12615de8335e
>>>> Terribly sorry about that! The combination of u and o is a common 
>>>> slip for me on the keyboard. It's correct in the new commit at 
>>>> least, and in the final commit, contributors are attributed with 
>>>> email addresses.
>>>>> I will work on fixing the Cygwin path extraction in my next patch.  
>>>>> Most likely I will just restore the old code for Cygwin while 
>>>>> using the new code for WSL, unless there are other suggestions... 
>>>>> Aside from this, is there any other feedback that I should take 
>>>>> into account before we can merge this into the main repository?
>>>> That may be the best solution.
>>>>
>>>> I tried to build some more targets and failed. Please make sure you 
>>>> can do "make bundles". That will build docs and tests in addition 
>>>> to just the product and also do the packaging into zip/tar.gz. It 
>>>> would also be nice if "make test" worked.
>>>>
>>>> Note that Magnus is now on vacation and I will be traveling, so you 
>>>> will not hear from me until Wednesday.
>>>>
>>>> /Erik
>>>>
>>>>> Thanks,
>>>>>
>>>>> -Andrew
>>>>>
>>>>> -----Original Message-----
>>>>> From: Erik Joelsson <erik.joelsson at oracle.com>
>>>>> Sent: Friday, December 14, 2018 5:42 PM
>>>>> To: Andrew Luo <andrewluotechnologies at outlook.com>; Magnus Ihse 
>>>>> Bursie <magnus.ihse.bursie at oracle.com>
>>>>> Cc: build-dev at openjdk.java.net
>>>>> Subject: Re: [PATCH] Support for building using WSL (Windows 
>>>>> Subsystem for Linux) on Windows
>>>>>
>>>>> After having configured my WSL to mount using case=off, I was able 
>>>>> to successfully build images using the latest patch as applied in 
>>>>> the sandbox.
>>>>>
>>>>> /Erik
>>>>>
>>>>> On 2018-12-14 17:23, Erik Joelsson wrote:
>>>>>> Hello again,
>>>>>>
>>>>>> I took the liberty of creating a bug for this and also a sandbox 
>>>>>> branch where I've applied your latest patch. If you clone that 
>>>>>> you can send further patches based on a known state in the 
>>>>>> sandbox. This will make it easier to see what you are actually 
>>>>>> doing in each update, as well as give us better references when 
>>>>>> discussing them. It also gives me the ability to directly change 
>>>>>> things so we can keep Cygwin/msys working.
>>>>>>
>>>>>> https://bugs.openjdk.java.net/browse/JDK-8215445
>>>>>>
>>>>>> http://hg.openjdk.java.net/jdk/sandbox/shortlog/12615de8335e
>>>>>>
>>>>>> /Erik
>>>>>>
>>>>>> On 2018-12-14 16:47, Erik Joelsson wrote:
>>>>>>> Hello,
>>>>>>>
>>>>>>> You beat me to it. I just found the rc.exe problem was that 
>>>>>>> FIXPATH_PATH in spec.gmk.in was quoted. Make just propagates 
>>>>>>> quotes verbatim, so then fixpath.c would create a path variable 
>>>>>>> like;
>>>>>>>
>>>>>>> $PATH;"$FIXPATH_PATH"
>>>>>>>
>>>>>>> Which is why link.exe could not find rc.exe.
>>>>>>>
>>>>>>> /Erik
>>>>>>>
>>>>>>> On 2018-12-14 16:32, Andrew Luo wrote:
>>>>>>>> Ok, here's my latest patch (I didn't add your case sensitivity 
>>>>>>>> fix yet, but will do next patch).  I believe this should get 
>>>>>>>> you past the rc.exe issues.
>>>>>>>>
>>>>>>>> Thanks,
>>>>>>>>
>>>>>>>> -Andrew
>>>>>>>>
>>>>>>>> -----Original Message-----
>>>>>>>> From: Erik Joelsson <erik.joelsson at oracle.com>
>>>>>>>> Sent: Friday, December 14, 2018 4:15 PM
>>>>>>>> To: Magnus Ihse Bursie <magnus.ihse.bursie at oracle.com>
>>>>>>>> Cc: Andrew Luo <andrewluotechnologies at outlook.com>;
>>>>>>>> build-dev at openjdk.java.net
>>>>>>>> Subject: Re: [PATCH] Support for building using WSL (Windows 
>>>>>>>> Subsystem for Linux) on Windows
>>>>>>>>
>>>>>>>>
>>>>>>>> On 2018-12-14 16:06, Magnus Ihse Bursie wrote:
>>>>>>>>>> 14 dec. 2018 kl. 23:42 skrev Erik Joelsson
>>>>>>>>>> <erik.joelsson at oracle.com>:
>>>>>>>>>>
>>>>>>>>>> I found the reason it's not failing make. It returns "1" and 
>>>>>>>>>> NativeCompilation.gmk currently ignores 1 explicitly for 
>>>>>>>>>> Visual Studio. I added that back in 2014 in 
>>>>>>>>>> https://bugs.openjdk.java.net/browse/JDK-8065576, but I can't 
>>>>>>>>>> figure out why. Nothing mentioned in either comment or review.
>>>>>>>>> Sounds like it's ripe for removal then. :) I wonder what kind 
>>>>>>>>> of issue you might have run into that caused a returned 1 to 
>>>>>>>>> happen and yet we didn't want to consider it a failure...
>>>>>>>> If I'm to guess, I think it's one of the commands we pipe the 
>>>>>>>> output to when the output is zero. This would explain why it 
>>>>>>>> was added together with pipefail.
>>>>>>>>
>>>>>>>> /Erik
>>>>>>>>
>>>>>>>>> /Magnus
>>>>>>>>>
>>>>>>>>>> /Erik
>>>>>>>>>>
>>>>>>>>>>> On 2018-12-14 13:59, Magnus Ihse Bursie wrote:
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>> On 2018-12-14 22:15, Erik Joelsson wrote:
>>>>>>>>>>>> I get the same error for pch and it still continues, but 
>>>>>>>>>>>> this time I let it run until it eventually fails for real 
>>>>>>>>>>>> when it can't link. Perhaps it's simply cl.exe that isn't 
>>>>>>>>>>>> returning non zero for this error? When the linker fails, 
>>>>>>>>>>>> make fails, so propagation doesn't seem broken.
>>>>>>>>>>> That does also seem really weird, considering that it claims 
>>>>>>>>>>> it to be a "fatal error". Can you repeat the command at the 
>>>>>>>>>>> command line and get the failure again, and then check the 
>>>>>>>>>>> return value?
>>>>>>>>>>> Can you rewrite the command line and run it from the devenv 
>>>>>>>>>>> prompt? That is, is there any indication that the pch file 
>>>>>>>>>>> itself is messed up, or can it be used if running the 
>>>>>>>>>>> compilation that should use it from an "ok" prompt?
>>>>>>>>>>>
>>>>>>>>>>> /Magnus
>>>>>>>>>>>> /Erik
>>>>>>>>>>>>
>>>>>>>>>>>>> On 2018-12-14 12:55, Andrew Luo wrote:
>>>>>>>>>>>>> Hmm, I get the rc.exe error as well, but now it is much 
>>>>>>>>>>>>> later down the line... Still investigating...
>>>>>>>>>>>>>
>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>
>>>>>>>>>>>>> -Andrew
>>>>>>>>>>>>>
>>>>>>>>>>>>> -----Original Message-----
>>>>>>>>>>>>> From: Andrew Luo
>>>>>>>>>>>>> Sent: Friday, December 14, 2018 12:34 PM
>>>>>>>>>>>>> To: 'Andrew Luo' <andrewluotechnologies at outlook.com>; 
>>>>>>>>>>>>> Magnus Ihse Bursie <magnus.ihse.bursie at oracle.com>; Erik 
>>>>>>>>>>>>> Joelsson <erik.joelsson at oracle.com>
>>>>>>>>>>>>> Cc: build-dev at openjdk.java.net
>>>>>>>>>>>>> Subject: RE: [PATCH] Support for building using WSL 
>>>>>>>>>>>>> (Windows Subsystem for Linux) on Windows
>>>>>>>>>>>>>
>>>>>>>>>>>>> Try this updated patch with some fixes...
>>>>>>>>>>>>>
>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>
>>>>>>>>>>>>> -Andrew
>>>>>>>>>>>>>
>>>>>>>>>>>>> -----Original Message-----
>>>>>>>>>>>>> From: build-dev <build-dev-bounces at openjdk.java.net> On 
>>>>>>>>>>>>> Behalf Of Andrew Luo
>>>>>>>>>>>>> Sent: Friday, December 14, 2018 12:01 PM
>>>>>>>>>>>>> To: Magnus Ihse Bursie <magnus.ihse.bursie at oracle.com>; 
>>>>>>>>>>>>> Erik Joelsson <erik.joelsson at oracle.com>
>>>>>>>>>>>>> Cc: build-dev at openjdk.java.net
>>>>>>>>>>>>> Subject: RE: [PATCH] Support for building using WSL 
>>>>>>>>>>>>> (Windows Subsystem for Linux) on Windows
>>>>>>>>>>>>>
>>>>>>>>>>>>> I think I have a fix for it.  Give me a minute (or a few 
>>>>>>>>>>>>> hours depending on if it works).
>>>>>>>>>>>>>
>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>
>>>>>>>>>>>>> -Andrew
>>>>>>>>>>>>>
>>>>>>>>>>>>> -----Original Message-----
>>>>>>>>>>>>> From: Magnus Ihse Bursie <magnus.ihse.bursie at oracle.com>
>>>>>>>>>>>>> Sent: Friday, December 14, 2018 11:42 AM
>>>>>>>>>>>>> To: Erik Joelsson <erik.joelsson at oracle.com>
>>>>>>>>>>>>> Cc: Andrew Luo <andrewluotechnologies at outlook.com>;
>>>>>>>>>>>>> build-dev at openjdk.java.net
>>>>>>>>>>>>> Subject: Re: [PATCH] Support for building using WSL 
>>>>>>>>>>>>> (Windows Subsystem for Linux) on Windows
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>> 14 dec. 2018 kl. 20:31 skrev Erik Joelsson
>>>>>>>>>>>>>> <erik.joelsson at oracle.com>:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> On 2018-12-14 11:05, Magnus Ihse Bursie wrote:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> On 2018-12-14 19:41, Erik Joelsson wrote:
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> 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\
>>>>>>>>>>>>>>>>>> hotsp
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> ot\
>>>>>>>>>>>>>>>>>> varia
>>>>>>>>>>>>>>>>>> nt-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?
>>>>>>>>>>>>>>> Could you? That is, is it only the PCH that is problematic?
>>>>>>>>>>>>>> Trying that now.
>>>>>>>>>>>>>>>>> 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:
>>>>>>>>>>>>>>> Weird. What if you, after a failed build, rename it to 
>>>>>>>>>>>>>>> build_libjvm.pch?
>>>>>>>>>>>>>> Doing that causes a new error:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> d:\erik\jdk-wsl\open\src\hotspot\share\gc\shared\accessBarrierSupport. 
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> cpp : fatal error C1382: the PCH file 
>>>>>>>>>>>>>> 'd:\erik\jdk-wsl\build\windows-x86_64-server-release\hots
>>>>>>>>>>>>>> pot\v
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> ari ant-s erver\libjvm\objs\build_libjvm.pch' has been 
>>>>>>>>>>>>>> rebuilt since 
>>>>>>>>>>>>>> 'd:\erik\jdk-wsl\build\windows-x86_64-server-release\hots
>>>>>>>>>>>>>> pot\v
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> ari ant-s erver\libjvm\objs\accessBarrierSupport.obj' was 
>>>>>>>>>>>>>> generated.
>>>>>>>>>>>>>> Please rebuild this object
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> But I think even more important is that make is not 
>>>>>>>>>>>>>> getting the error. The build just continues until interrupted.
>>>>>>>>>>>>> Agree, that's bad.
>>>>>>>>>>>>>
>>>>>>>>>>>>> Does fixpath_debug print exit code? If so, what does it 
>>>>>>>>>>>>> say? If not, we should add that instrumentation.
>>>>>>>>>>>>>
>>>>>>>>>>>>> /Magnus
>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Compiling ad_x86_expand.cpp (for jvm.dll) fixpath input 
>>>>>>>>>>>>>>>> line
>>>>>>>>>>>>>>>>> -wsl\build\windows-x86_64-server-release\configure-sup
>>>>>>>>>>>>>>>>> port\
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> bin
>>>>>>>>>>>>>>>>> \fixp
>>>>>>>>>>>>>>>> ath.exe -w
>>>>>>>>>>>>>>> This starts out quite odd..? -wsl\build\...?
>>>>>>>>>>>>>> I agree, didn't look into that part.
>>>>>>>>>>>>>>>> /mnt/c/PROGRA~2/MICROS~1/2017/PROFES~1/VC/Tools/MSVC/1416~1. 
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> 270
>>>>>>>>>>>>>>>> /bin/
>>>>>>>>>>>>>>>> Hostx86/x64/cl.exe
>>>>>>>>>>>>>>> Also, FWIW, this seems not to have been properly case 
>>>>>>>>>>>>>>> treated. Which version of the patch are you using?
>>>>>>>>>>>>>> The last one posted by Andrew: "diff15.txt".
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> /Erik
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> /Magnus
>>>>>>>>>>>>>>>> -showIncludes
>>>>>>>>>>>>>>>> -Fp/mnt/d/erik/jdk-wsl/build/windows-x86_64-server-rele
>>>>>>>>>>>>>>>> ase/h
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> ots pot/v ariant-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-relea
>>>>>>>>>>>>>>>> se/ho
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> tsp
>>>>>>>>>>>>>>>> ot/va
>>>>>>>>>>>>>>>> riant-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_x
>>>>>>>>>>>>>>>> 86 
>>>>>>>>>>>>>>>> -I/mnt/d/erik/jdk-wsl/build/windows-x86_64-server-relea
>>>>>>>>>>>>>>>> se/ho
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> tsp
>>>>>>>>>>>>>>>> ot/va
>>>>>>>>>>>>>>>> riant-server/gensrc
>>>>>>>>>>>>>>>> -I/mnt/d/erik/jdk-wsl/open/src/hotspot/share/precompile
>>>>>>>>>>>>>>>> d -I/mnt/d/erik/jdk-wsl/open/src/hotspot/share/include
>>>>>>>>>>>>>>>> -I/mnt/d/erik/jdk-wsl/open/src/hotspot/os/windows/inclu
>>>>>>>>>>>>>>>> de 
>>>>>>>>>>>>>>>> -I/mnt/d/erik/jdk-wsl/build/windows-x86_64-server-relea
>>>>>>>>>>>>>>>> se/su
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> ppo
>>>>>>>>>>>>>>>> rt/mo
>>>>>>>>>>>>>>>> dules_include/java.base 
>>>>>>>>>>>>>>>> -I/mnt/d/erik/jdk-wsl/build/windows-x86_64-server-relea
>>>>>>>>>>>>>>>> se/su
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> ppo
>>>>>>>>>>>>>>>> rt/mo
>>>>>>>>>>>>>>>> dules_include/java.base/win32 
>>>>>>>>>>>>>>>> -I/mnt/d/erik/jdk-wsl/open/src/java.base/share/native/l
>>>>>>>>>>>>>>>> ibjim
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> age
>>>>>>>>>>>>>>>> -Z7
>>>>>>>>>>>>>>>> -d2Zi+ -wd4800 -WX
>>>>>>>>>>>>>>>> -I/mnt/c/PROGRA~2/MICROS~1/2017/PROFES~1/VC/Tools/MSVC/
>>>>>>>>>>>>>>>> 1416~
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> 1.2
>>>>>>>>>>>>>>>> 70/at
>>>>>>>>>>>>>>>> lmfc/include
>>>>>>>>>>>>>>>> -I/mnt/c/PROGRA~2/MICROS~1/2017/PROFES~1/VC/Tools/MSVC/
>>>>>>>>>>>>>>>> 1416~
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> 1.2
>>>>>>>>>>>>>>>> 70/in clude
>>>>>>>>>>>>>>>> -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/cppwin
>>>>>>>>>>>>>>>> rt
>>>>>>>>>>>>>>>> -O2
>>>>>>>>>>>>>>>> -Oy- "-DTHIS_FILE=\"\"" -c 
>>>>>>>>>>>>>>>> -Fo/mnt/d/erik/jdk-wsl/build/windows-x86_64-server-rele
>>>>>>>>>>>>>>>> ase/h
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> ots pot/v ariant-server/libjvm/objs/ad_x86_expand.obj
>>>>>>>>>>>>>>>> /mnt/d/erik/jdk-wsl/build/windows-x86_64-server-release
>>>>>>>>>>>>>>>> /hots
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> pot /vari ant-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
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> /bi
>>>>>>>>>>>>>>>>> n/Hos
>>>>>>>>>>>>>>>> tx86/x64/cl.exe -showIncludes 
>>>>>>>>>>>>>>>> -Fpd:/erik/jdk-wsl/build/windows-x86_64-server-release/
>>>>>>>>>>>>>>>> hotsp
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> ot/ varia nt-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/h
>>>>>>>>>>>>>>>> otspo
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> t/v arian t-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/h
>>>>>>>>>>>>>>>> otspo
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> t/v
>>>>>>>>>>>>>>>> arian t-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/s
>>>>>>>>>>>>>>>> uppor
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> t/m
>>>>>>>>>>>>>>>> odule
>>>>>>>>>>>>>>>> s_include/java.base
>>>>>>>>>>>>>>>> -Id:/erik/jdk-wsl/build/windows-x86_64-server-release/s
>>>>>>>>>>>>>>>> uppor
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> t/m
>>>>>>>>>>>>>>>> odule
>>>>>>>>>>>>>>>> s_include/java.base/win32 
>>>>>>>>>>>>>>>> -Id:/erik/jdk-wsl/open/src/java.base/share/native/libji
>>>>>>>>>>>>>>>> mage
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> -Z7
>>>>>>>>>>>>>>>> -d2Zi+ -wd4800 -WX
>>>>>>>>>>>>>>>> -Ic:/PROGRA~2/MICROS~1/2017/PROFES~1/VC/Tools/MSVC/1416
>>>>>>>>>>>>>>>> ~1.27
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> 0/a
>>>>>>>>>>>>>>>> tlmfc
>>>>>>>>>>>>>>>> /include
>>>>>>>>>>>>>>>> -Ic:/PROGRA~2/MICROS~1/2017/PROFES~1/VC/Tools/MSVC/1416
>>>>>>>>>>>>>>>> ~1.27
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> 0/i nclud e
>>>>>>>>>>>>>>>> -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/
>>>>>>>>>>>>>>>> hotsp
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> ot/ varia nt-server/libjvm/objs/ad_x86_expand.obj
>>>>>>>>>>>>>>>> d:/erik/jdk-wsl/build/windows-x86_64-server-release/hot
>>>>>>>>>>>>>>>> spot/
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> var
>>>>>>>>>>>>>>>> iant- 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

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