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dart / sdk / fce425578e355f01592e0721e1f17fb3ddd3535e
commitfce425578e355f01592e0721e1f17fb3ddd3535e[log] [tgz]
authorasiva <asiva@google.com>Tue Jan 23 17:22:16 2024 +0000
committerCommit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue Jan 23 17:22:16 2024 +0000
tree7affc6aa1f87ce9f48dcc0f1a5f5d216e910234b
parentbc253dce31f81f4f4204e80b9038b77cbb8547df [diff]
[stable] [vm/debugger] Use safepoint-safe RwLock for breakpoint locations locks and Ensure setting breakpoints is lock-safe.

TEST=DartAPI_BreakpointLockRace and DeoptimizeFramesWhenSettingBreakpoint

Fixes
https://github.com/dart-lang/sdk/issues/54650
https://github.com/flutter/flutter/issues/140878

Acquire reload opreation scope when deoptimizing the world to ensure locks can be acquired for compilation.
Set up scope for operations that can be run while the world is deoptimized and stopped to avoid races.
Ensure code stays unoptizimed when single stepping, prevent other isolates to reoptimize.

Bug: https://github.com/dart-lang/sdk/issues/54650 and https://github.com/flutter/flutter/issues/140878
Change-Id: I9a88096f15a34b645281e5b2b3805a73dd93672e
Cherry-pick: https://dart-review.googlesource.com/c/sdk/+/347420 and https://dart-review.googlesource.com/c/sdk/+/345743
Cherry-pick-request: https://github.com/dart-lang/sdk/issues/54699
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/347650
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Kevin Chisholm <kevinjchisholm@google.com>
7 files changed
tree: 7affc6aa1f87ce9f48dcc0f1a5f5d216e910234b
  1. .dart_tool/
  2. .github/
  3. benchmarks/
  4. build/
  5. docs/
  6. pkg/
  7. runtime/
  8. samples/
  9. sdk/
  10. tests/
  11. third_party/
  12. tools/
  13. utils/
  14. .clang-format
  15. .gitattributes
  16. .gitconfig
  17. .gitignore
  18. .gn
  19. .mailmap
  20. .style.yapf
  21. .vpython
  22. AUTHORS
  23. BUILD.gn
  24. CHANGELOG.md
  25. codereview.settings
  26. CONTRIBUTING.md
  27. DEPS
  28. LICENSE
  29. OWNERS
  30. PATENT_GRANT
  31. PRESUBMIT.py
  32. README.dart-sdk
  33. README.md
  34. sdk.code-workspace
  35. sdk_args.gni
  36. SECURITY.md
  37. WATCHLISTS
README.md

Dart

A client-optimized language for fast apps on any platform

Dart is:

  • Optimized for UI: Develop with a programming language specialized around the needs of user interface creation.

  • Productive: Make changes iteratively: use hot reload to see the result instantly in your running app.

  • Fast on all platforms: Compile to ARM & x64 machine code for mobile, desktop, and backend. Or compile to JavaScript for the web.

Dart's flexible compiler technology lets you run Dart code in different ways, depending on your target platform and goals:

  • Dart Native: For programs targeting devices (mobile, desktop, server, and more), Dart Native includes both a Dart VM with JIT (just-in-time) compilation and an AOT (ahead-of-time) compiler for producing machine code.

  • Dart Web: For programs targeting the web, Dart Web includes both a development time compiler (dartdevc) and a production time compiler (dart2js).

Dart platforms illustration

License & patents

Dart is free and open source.

See LICENSE and PATENT_GRANT.

Using Dart

Visit dart.dev to learn more about the language, tools, and to find codelabs.

Browse pub.dev for more packages and libraries contributed by the community and the Dart team.

Our API reference documentation is published at api.dart.dev, based on the stable release. (We also publish docs from our beta and dev channels, as well as from the primary development branch).

Building Dart

If you want to build Dart yourself, here is a guide to getting the source, preparing your machine to build the SDK, and building.

There are more documents on our wiki.

Contributing to Dart

The easiest way to contribute to Dart is to file issues.

You can also contribute patches, as described in Contributing.