[PATCH] Enable jtreg tests to run on WSL (Windows Subsystem for Linux)

[Jonathan Gibbons]

Andrew,

Thank you for the references.

-- Jon


On 01/07/2019 12:36 PM, Andrew Luo wrote:
> Hi Jon,
>
> For a general intro to WSL, see here:
>
> https://blogs.msdn.microsoft.com/wsl/2016/04/22/windows-subsystem-for-linux-overview/
> https://docs.microsoft.com/en-us/windows/wsl/faq
>
> These links might also be useful for reviewing these changes specifically:
>
> https://docs.microsoft.com/en-us/windows/wsl/interop
> https://blogs.msdn.microsoft.com/commandline/2017/12/22/share-environment-vars-between-wsl-and-windows/
>
> Thanks,
>
> -Andrew
>
> -----Original Message-----
> From: Jonathan Gibbons <jonathan.gibbons at oracle.com>
> Sent: Monday, January 7, 2019 7:54 AM
> To: Andrew Luo <andrewluotechnologies at outlook.com>; code-tools-dev at openjdk.java.net
> Subject: Re: [PATCH] Enable jtreg tests to run on WSL (Windows Subsystem for Linux)
>
> Andrew,
>
> I've been generally following the progress for supporting WSL, but now that I need to get more involved, (i.e. reviewing jtreg updates) can you point me at any reasonable general introductory material for WSL?
>
> -- Jon
>
> On 1/6/19 11:29 AM, Andrew Luo wrote:
>> We recently added support for building OpenJDK on WSL (targeting
>> Windows; targeting Linux always worked).  However, running tests on
>> WSL did not work, and we determined that some changes would be needed
>> to jtreg to support this use case.  In particular, jtreg needs to know
>> if it is running on WSL targeting Windows or WSL targeting Linux (when
>> targeting Linux, no changes are needed as it is the same as any other
>> Linux system, but when targeting Windows jtreg needs to run shell
>> scripts in a special manner - in particular, calling "wsl.exe sh"
>> instead of just "sh" since it's a Windows boot JDK, as well as
>> translating environment variables using WSLENV...)
>>
>> I've attached my patch with my proposed changes.  I welcome any thoughts/feedback.
>>
>> (See https://bugs.openjdk.java.net/browse/JDK-8215445 for more details
>> about supporting WSL for building OpenJDK)
>>
>> Thanks,
>>
>> -Andrew