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Ryan Macnak e31c3713bf Reland "[build, vm] Access TLS with less code."
- Avoid TLS initialization checks by using inline initialization.
 - Avoid global offset table indirection by reducing -fPIC to -fPIE.

out/ReleaseXARM64/exe.stripped/dart_precompiled_runtime
11137992 -> 11274776 (-1.21%)

We still need -fPIC in some places because we build a few shared libraries for FFI, so copy some of Fuchsia's GN setup to use -fPIE or -fPIC as appropriate.

Account for older gcc that does not default to -fpie.

TEST=ci
Bug: https://github.com/dart-lang/sdk/issues/51602
Change-Id: I85072153cb1aef9047c1adbf36c7496fbeb11e10
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/286221
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2023-03-02 23:07:16 +00:00
.dart_tool [infra] re-land work to auto-generate .dart_tool/package_config.json 2022-04-12 17:21:02 +00:00
.github Bump github/codeql-action from 2.2.4 to 2.2.5 2023-02-28 12:08:29 +00:00
benchmarks [benchmarks/ffi] Add @Native calls to FfiCall benchmark 2023-03-02 15:23:16 +00:00
build Reland "[build, vm] Access TLS with less code." 2023-03-02 23:07:16 +00:00
docs Spelling pkg analyzer lib 2023-01-25 14:08:27 +00:00
pkg [dart2js] Static weak references to method tearoffs 2023-03-02 20:04:19 +00:00
runtime Reland "[build, vm] Access TLS with less code." 2023-03-02 23:07:16 +00:00
samples [samples/ffi] Update sqlite-tutorial 2023-02-21 21:23:43 +00:00
sdk [lib] Annotate exception classes added in 2.19 with @Since("2.19") 2023-03-01 23:05:24 +00:00
tests Reland "[build, vm] Access TLS with less code." 2023-03-02 23:07:16 +00:00
third_party Bump protobuf-gn version to eliminate need for custom_options.proto stub 2023-02-17 15:11:43 +00:00
tools [infra] Remove old configurations for Linux ARM64. 2023-03-01 19:02:53 +00:00
utils [dart2js] Update build infrastructure to move Dart2JS onto sound null safety. 2023-02-22 17:19:43 +00:00
.clang-format
.gitattributes
.gitconfig
.gitignore [test_runner] Create --write-logs dir, add default dir to .gitignore 2022-11-15 09:59:08 +00:00
.gn
.mailmap Fixed various typos in a lot of files 2022-07-25 12:21:59 +00:00
.style.yapf
.vpython
AUTHORS Simplify the license situation 2022-09-14 21:06:22 +00:00
BUILD.gn Roll Fuchsia SDK to 7b3b23b2c0da59b3aceab6c49fbe7d9ed34d7382. 2023-02-09 22:43:36 +00:00
CHANGELOG.md Revert "Roll the latest dart_style into the SDK." 2023-03-02 13:16:36 +00:00
codereview.settings [infra] Default presubmits to use python3 2021-08-24 08:20:47 +00:00
CONTRIBUTING.md Add more details to contributing docs 2022-03-16 07:56:58 +00:00
DEPS Revert "Roll Clang from 20d06c833d83 to 28ee6040710f" 2023-03-02 22:56:27 +00:00
LICENSE
OWNERS [owners] update the top-level owners file 2022-11-11 21:03:52 +00:00
PATENT_GRANT
PRESUBMIT.py Add year checking in PRESUBMIT.py 2023-02-01 16:31:32 +00:00
README.dart-sdk Fix README.dart-sdk file to reflect current contents of the SDK 2023-02-02 03:10:09 +00:00
README.md master => main 2021-09-10 08:02:49 +00:00
sdk_args.gni Fix typos 2022-06-15 11:08:28 +00:00
SECURITY.md Add link to published advisories 2022-02-08 19:45:07 +00:00
WATCHLISTS Create a watchlist for analyzer 2023-02-08 22:21:49 +00:00

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.