Tess Strickland
1b50200abd
Before, picking a symbol name for a Code object when generating assembly required adding a placeholder entry in the Dwarf object, because the Dwarf object separately used a SnapshotTextObjectNamer to determine the appropriate symbol name to use in relocations. Instead, now the ImageWriter subclasses are entirely responsible for creating the symbol name for a given Code object, and that name is passed when adding the Code object to the Dwarf object. For Elf output, we eagerly create symbols for sections and Code objects again in the appropriate symbol table, and so looking up the start of a given section or Code object can be done simply by asking for the corresponding symbol's address, removing special case methods and other workarounds. We also clean up the generated static and dynamic symbol tables by only generating local symbols for Code objects and BSS sections (these are local in assembly output also), and only adding global symbols to the dynamic symbol table. Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-linux-debug-simarm_x64-try,vm-kernel-precomp-mac-release-simarm64-try,vm-kernel-mac-debug-x64-try,vm-kernel-win-debug-x64-try,vm-kernel-precomp-win-release-x64-try Change-Id: Ie40c0c836681e98f345483136bb6860e5588ef30 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/166002 Reviewed-by: Martin Kustermann <kustermann@google.com>
Dart
A client-optimized language for fast apps on any platform
Dart is:
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Optimized for UI: Develop with a programming language specialized around the needs of user interface creation
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Productive: Make changes iteratively: use hot reload to see the result instantly in your running app
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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:
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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.
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Dart Web: For programs targeting the web, Dart Web includes both a development time compiler (dartdevc) and a production time compiler (dart2js).
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, 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.