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8292694: x86_64 c2i/i2c adapters may use more stack space than necessary #10034

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@dean-long dean-long commented Aug 26, 2022

The c2i adapter includes the return address in the alignment calculation, making %rsp always mis-aligned according to the ABI.

The i2c adapter aligns "extrawords" even though %rsp is aligned later, and the incoming stack is not guaranteed to be aligned.


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  • JDK-8292694: x86_64 c2i/i2c adapters may use more stack space than necessary

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bridgekeeper bot commented Aug 26, 2022

👋 Welcome back dlong! 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 openjdk bot changed the title 8292694: x86_64 c2i/i2c adapters may use more stack space than necessary 8292694: x86_64 c2i/i2c adapters may use more stack space than necessary Aug 26, 2022
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/cc hotspot-compiler hotspot-runtime hotspot

@openjdk openjdk bot added rfr Pull request is ready for review hotspot-compiler hotspot-compiler-dev@openjdk.org hotspot-runtime hotspot-runtime-dev@openjdk.org hotspot hotspot-dev@openjdk.org labels Aug 26, 2022
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mlbridge bot commented Aug 26, 2022

Webrevs

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Looks good to me.

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openjdk bot commented Aug 26, 2022

@dean-long 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:

8292694: x86_64 c2i/i2c adapters may use more stack space than necessary

Reviewed-by: kvn, thartmann

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 15 new commits pushed to the master branch:

  • a476ec5: 8292983: ModuleReferenceImpl.computeHash should record algorithm for cache checks
  • 99cab6a: 8292911: Add a note about jtreg failure handlers in the testing doc
  • f6b6360: 8289949: Improve test coverage for XPath: operators
  • b0e0b87: 8292917: [JVMCI] Extend InstalledCode API to make an nmethod non entrant.
  • 1500d3d: 8292994: ProblemList vmTestbase/gc/lock/jni/jnilock001/TestDescription.java
  • 4e457ac: 8291760: PipelineLeaksFD.java still fails: More or fewer pipes than expected
  • 774edeb: 8271615: vmTestbase/vm/jit/LongTransitions/ test fail due to locale mismatch
  • 9a0d1e7: 8292541: [Metrics] Reported memory limit may exceed physical machine memory
  • c74b6d4: 8292562: (fc) Use copy_file_range in FileChannel::transferTo on Linux
  • 3844685: 8292697: ZGC: Hangs when almost out of metaspace memory
  • ... and 5 more: https://git.openjdk.org/jdk/compare/3e187730162965981a5e6d238935e46d1015708e...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.

@openjdk openjdk bot added the ready Pull request is ready to be integrated label Aug 26, 2022
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Thanks Vladimir.

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I included generate_Continuation_doYield_entry() changes by mistake. I will revert those.

@dean-long dean-long requested a review from vnkozlov August 27, 2022 00:13
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Yes, I was wandering about generate_Continuation_doYield_entry().

Looks good.

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Looks good.

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Thanks Tobias.

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/integrate

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openjdk bot commented Aug 29, 2022

Going to push as commit adb3d4f.
Since your change was applied there have been 19 commits pushed to the master branch:

  • 30def49: 8292769: [JVMCI] OutOfMemoryError thrown when attaching the libgraal isolate causes HotSpot to crash.
  • a88a9e3: 8291466: C2: assert(false) failed: infinite loop in PhaseIterGVN::transform_old with -XX:+StressIGVN
  • d5167a9: 7189422: [macosx] Submenu's arrow have a wrong position
  • 512fee1: 8292972: Initialize fields if CodeBlobIterator shortcuts without heaps
  • a476ec5: 8292983: ModuleReferenceImpl.computeHash should record algorithm for cache checks
  • 99cab6a: 8292911: Add a note about jtreg failure handlers in the testing doc
  • f6b6360: 8289949: Improve test coverage for XPath: operators
  • b0e0b87: 8292917: [JVMCI] Extend InstalledCode API to make an nmethod non entrant.
  • 1500d3d: 8292994: ProblemList vmTestbase/gc/lock/jni/jnilock001/TestDescription.java
  • 4e457ac: 8291760: PipelineLeaksFD.java still fails: More or fewer pipes than expected
  • ... and 9 more: https://git.openjdk.org/jdk/compare/3e187730162965981a5e6d238935e46d1015708e...master

Your commit was automatically rebased without conflicts.

@openjdk openjdk bot added the integrated Pull request has been integrated label Aug 29, 2022
@openjdk openjdk bot closed this Aug 29, 2022
@openjdk openjdk bot removed ready Pull request is ready to be integrated rfr Pull request is ready for review labels Aug 29, 2022
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openjdk bot commented Aug 29, 2022

@dean-long Pushed as commit adb3d4f.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.

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