8277370: configure script cannot distinguish WSL version

[YaSuenag]

configure script distinguish WSL version if it is run on WSL. It is assumed WSL 2 if /run/WSL exists.
However it exists in spite of WSL 1 on Windows 11 at least. We need to check it with other method.

The method to distinguish WSL version has been discussed on microsoft/WSL#4555 , however they do not seem to get consensus about it. /run/WSL was introduced in it, but I think Hyper-V in /proc/interrupt is more robustness because WSL 2 is run on Hyper-V. https://docs.microsoft.com/en-us/windows/wsl/faq#does-wsl-2-use-hyper-v--will-it-be-available-on-windows-10-home-

---

Progress

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Issue

• JDK-8277370: configure script cannot distinguish WSL version

Reviewers

• Erik Joelsson (@erikj79 - Reviewer)

Reviewing

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[openjdk]

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[mlbridge]

Webrevs

• 01: Full - Incremental (13f1f8b9)
• 00: Full (5f58daa3)

[erikj79]

You could use the -q switch to grep instead of piping to /dev/null.

[YaSuenag]

Thanks for your review! I updated to add -q and to use $GREP instead of grep.

[openjdk]

@YaSuenag This change now passes all automated pre-integration checks.

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After integration, the commit message for the final commit will be:

8277370: configure script cannot distinguish WSL version

Reviewed-by: erikj

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At the time when this comment was updated there had been 28 new commits pushed to the master branch:

• b15e6f0: 8277449: compiler/vectorapi/TestLongVectorNeg.java fails with release VMs
• 11d819d: 8277439: G1: Correct include guard name in G1EvacFailureObjectsSet.hpp
• 7a046e0: 8277371: Remove unnecessary DefNewGeneration::ref_processor_init()
• 3a76d39: 8277324: C2 compilation fails with "bad AD file" on x86-32 after JDK-8276162 due to missing match rule
• 2f20b0d: 8273039: JShell crashes when naming variable or method "abstract" or "strictfp"
• f34f119: 8277213: CompileTask_lock is acquired out of order with MethodCompileQueue_lock
• 47564ca: 8275643: C2's unaryOp vector intrinsic does not properly handle LongVector.neg
• 2f0bde1: 8277102: Dubious PrintCompilation output
• 839033b: 8276976: Rename LIR_OprDesc to LIR_Opr
• 89b125f: 8275527: Refactor forward pointer access
• ... and 18 more: https://git.openjdk.java.net/jdk/compare/91607436b79126ccb999deaf38a98209dbfe6ec1...master

As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[YaSuenag]

/integrate

[openjdk]

Going to push as commit 2d4af22.
Since your change was applied there have been 40 commits pushed to the master branch:

• a3406a1: 8277092: TestMetaspaceAllocationMT2.java#ndebug-default fails with "RuntimeException: Committed seems high: NNNN expected at most MMMM"
• e47cc81: 8275386: Change nested classes in jdk.jlink to static nested classes
• f609b8f: 8274946: Cleanup unnecessary calls to Throwable.initCause() in java.rmi
• 36b59f3: 8274333: Redundant null comparison after Pattern.split
• 6677554: 8274949: Use String.contains() instead of String.indexOf() in java.base
• 09e8c8c: 8277342: vmTestbase/nsk/stress/strace/strace004.java fails with SIGSEGV in InstanceKlass::jni_id_for
• 976c2bb: 8277212: GC accidentally cleans valid megamorphic vtable inline caches
• 03f8c0f: 8275887: jarsigner prints invalid digest/signature algorithm warnings if keysize is weak/disabled
• 936f7ff: 8276150: Quarantined jpackage apps are labeled as "damaged"
• a022796: 8275745: Reproducible copyright headers
• ... and 30 more: https://git.openjdk.java.net/jdk/compare/91607436b79126ccb999deaf38a98209dbfe6ec1...master

Your commit was automatically rebased without conflicts.

[openjdk]

@YaSuenag Pushed as commit 2d4af22.

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