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Clement Skau 0ce83987d6 Reland "[SDK] Adds an SDK hash to kernels and the VM." 
Note: This is a reland of https://dart-review.googlesource.com/c/sdk/+/150343

Adds a new SDK hash to kernels and the VM which is optionally checked
to verify kernels are built for the same SDK as the VM.
This helps catch incompatibilities that are currently causing
subtle bugs and (not so subtle) crashes.

The SDK hash is encoded in kernels as a new field in components.
The hash is derived from the 10 byte git short hash.

This new check can be disabled via:
  tools/gn.py ... --no-verify-sdk-hash

This CL bumps the min. (and max.) supported kernel format version,
making the VM backwards incompatible from this point back.

This also bumps the min. and current ABI version.

Bug: https://github.com/dart-lang/sdk/issues/41802
Change-Id: I2f85945045a603eb9dcfd1f2c0d0d024bd84a956
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152802
Commit-Queue: Clement Skau <cskau@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-07-07 06:08:20 +00:00
.dart_tool update typed_data to the nnbd version 2020-07-01 20:53:31 +00:00
.github Update new issue template. 2019-04-30 18:14:21 +00:00
benchmarks [benchmarks] Migrate Utf8Decode benchmark. 2020-07-01 16:53:11 +00:00
build [build] Support --clang when building dart sdk on Windows. 2020-06-25 03:36:41 +00:00
client
docs process docs: Add link to experimental flags yaml file 2020-05-30 02:28:22 +00:00
pkg Reland "[SDK] Adds an SDK hash to kernels and the VM." 2020-07-07 06:08:20 +00:00
runtime Reland "[SDK] Adds an SDK hash to kernels and the VM." 2020-07-07 06:08:20 +00:00
samples [vm/ffi] Expose a subset of dart_(native_)api.h for dynamic linking. 2020-06-18 07:30:43 +00:00
samples-dev/swarm Unittest is finally going the way of the dinosaurs. 2020-03-20 17:40:42 +00:00
sdk [dart2js/ddc] Add null checks to with<X|Y|Z|W> methods 2020-07-06 22:06:42 +00:00
tests [cfe] Implement new async return rules 2020-07-06 07:04:40 +00:00
third_party Add README.google and change browser-compat-data DEPS 2020-05-29 18:59:34 +00:00
tools Reland "[SDK] Adds an SDK hash to kernels and the VM." 2020-07-07 06:08:20 +00:00
utils Reland "[SDK] Adds an SDK hash to kernels and the VM." 2020-07-07 06:08:20 +00:00
.clang-format
.gitattributes Migrate language_2/string to null safety. 2020-06-17 21:14:43 +00:00
.gitconfig
.gitignore Add internal benchmarks to .gitignore. 2020-06-26 11:57:22 +00:00
.gn
.mailmap fix my name in .mailmap 2018-09-11 01:45:52 +00:00
.packages [vm/tools] Move snapshot analysis tool to its own package. 2020-06-23 13:14:41 +00:00
.style.yapf Mass format python with yapf 2019-08-05 20:34:31 +00:00
.vpython [infra] Add .vpython spec to fix gsutil on the bots (#31065) 2018-10-11 15:11:35 +00:00
AUTHORS [runtime/vm] ARM64: Support unaligned memory accesses for regex. 2019-10-15 20:11:40 +00:00
BUILD.gn [Core Libraries] Eliminate the fork in the core libraries. 2020-06-16 23:37:36 +00:00
CHANGELOG.md [dart:html] Update console interface 2020-06-30 23:32:27 +00:00
codereview.settings
CONTRIBUTING.md Fix a number of outdated URLs across a number of markdown files 2020-05-29 09:23:45 +00:00
DEPS Reland "[SDK] Adds an SDK hash to kernels and the VM." 2020-07-07 06:08:20 +00:00
LICENSE Remove third_party licenses from LICENSE 2019-08-21 07:43:34 +00:00
PATENT_GRANT Rename patent file 2019-08-16 12:03:17 +00:00
PRESUBMIT.py [Core Libraries] Eliminate the fork in the core libraries. 2020-06-16 23:37:36 +00:00
README.dart-sdk Add dart2native to sdk README 2020-01-20 09:32:58 +00:00
README.md Fix a number of outdated URLs across a number of markdown files 2020-05-29 09:23:45 +00:00
sdk_args.gni Reland "[SDK] Adds an SDK hash to kernels and the VM." 2020-07-07 06:08:20 +00:00
WATCHLISTS [dart2js] 20 dart2js tests ported to nnbd #1. 2020-06-26 15:21:42 +00:00

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 the dart.dev to learn more about the language, tools, getting started, and more.

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

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.