8264650: Cross-compilation to macos/aarch64

[AntonKozlov]

Please review adding necessary flags for cross-compilation on macos/x86 targeting macos/aarch64.

All CFLAGS, CXXFLAGS, LDFLAGS need target CPU flag -arch arm64.
This patch adds the flag along e.g -m64.

Tested:

• cross-compilation
  • macos/x86 -> macos/aarch64: configure --openjdk-target=aarch64-apple-darwin
  • macos/aarch64 -> macos/x86: configure --openjdk-target=x86_64-apple-darwin
• native compilation:
  • macos/aarch64
  • macos/x86

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed

Issue

• JDK-8264650: Cross-compilation to macos/aarch64

Reviewers

• Erik Joelsson (@erikj79 - Reviewer)

Reviewing

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Update a local copy of the PR:
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$ git pull https://git.openjdk.java.net/jdk pull/3325/head

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https://git.openjdk.java.net/jdk/pull/3325.diff

[bridgekeeper]

👋 Welcome back akozlov! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

@AntonKozlov The following label will be automatically applied to this pull request:

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[mlbridge]

Webrevs

• 01: Full - Incremental (df62dd07)
• 00: Full (3938a473)

[erikj79]

Thank you for getting on this!
For symmetry, and to enable cross compilation on both directions, can we add the necessary flag for x64 too?

Also, I doubt it matters much, but we could also only set these flags if COMPILE_TYPE=cross.

[erikj79]

Thinking again, it doesn't hurt to be explicit about this. Better always set these flags to avoid surprises.

[AntonKozlov]

Cool, I haven't thought it is possible, although clearly it should be :) Thanks! Fixed by always setting the flag. I also rely on Github Action to check this with Xcode 11.3.1, it seems to be fine https://github.com/AntonKozlov/jdk/runs/2256008843

[openjdk]

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

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

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

8264650: Cross-compilation to macos/aarch64

Reviewed-by: erikj

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been 16 new commits pushed to the master branch:

• 0039c18: 8264475: CopyArea ignores clip state in metal rendering pipeline
• f084bd2: 8262355: Support for AVX-512 opmask register allocation.
• 0780666: 8254050: HotSpot Style Guide should permit using the "override" virtual specifier
• f259eea: 8264393: JDK-8258284 introduced dangling TLH race
• 9b2232b: 8264123: add ThreadsList.is_valid() support
• e8eda65: 8264664: use text blocks in javac module tests
• cec66cf: 8264572: ForkJoinPool.getCommonPoolParallelism() reports always 1
• 9c283da: 8264662: ProblemList vmTestbase/jit/escape/AdaptiveBlocking/AdaptiveBlocking001/AdaptiveBlocking001.java on win-x64 with ZGC
• eb0ac86: 8264655: Minor internal doc comment cleanup
• 3991b32: 8264539: Improve failure message of java/nio/file/WatchService/SensitivityModifier.java
• ... and 6 more: https://git.openjdk.java.net/jdk/compare/885916eda023f313c429f5ea3f0cefd3a9574837...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.

As you do not have Committer status in this project an existing Committer must agree to sponsor your change. Possible candidates are the reviewers of this PR (@erikj79) but any other Committer may sponsor as well.

➡️ To flag this PR as ready for integration with the above commit message, type /integrate in a new comment. (Afterwards, your sponsor types /sponsor in a new comment to perform the integration).

[AntonKozlov]

/integrate

[openjdk]

@AntonKozlov
Your change (at version df62dd0) is now ready to be sponsored by a Committer.

[VladimirKempik]

/sponsor

[openjdk]

@VladimirKempik @AntonKozlov Since your change was applied there have been 16 commits pushed to the master branch:

• 0039c18: 8264475: CopyArea ignores clip state in metal rendering pipeline
• f084bd2: 8262355: Support for AVX-512 opmask register allocation.
• 0780666: 8254050: HotSpot Style Guide should permit using the "override" virtual specifier
• f259eea: 8264393: JDK-8258284 introduced dangling TLH race
• 9b2232b: 8264123: add ThreadsList.is_valid() support
• e8eda65: 8264664: use text blocks in javac module tests
• cec66cf: 8264572: ForkJoinPool.getCommonPoolParallelism() reports always 1
• 9c283da: 8264662: ProblemList vmTestbase/jit/escape/AdaptiveBlocking/AdaptiveBlocking001/AdaptiveBlocking001.java on win-x64 with ZGC
• eb0ac86: 8264655: Minor internal doc comment cleanup
• 3991b32: 8264539: Improve failure message of java/nio/file/WatchService/SensitivityModifier.java
• ... and 6 more: https://git.openjdk.java.net/jdk/compare/885916eda023f313c429f5ea3f0cefd3a9574837...master

Your commit was automatically rebased without conflicts.

Pushed as commit 7f9ece2.

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