[vm/kernel] Move functionality of Fuchsia's compiler.dart into pkg/vm

This includes:
* Selecting front-end target.
* Support for multi-root virtual file system.
* Not linking platform into resulting kernel file.
* Specifying input as URI (instead of file path) on command line.
* Automatically converting input script URI to package URI.
* Writing ninja dependencies file.
* Writing package-split kernel binaries.

After this change Fuchsia's compiler.dart will become a small wrapper
over pkg/vm, sharing most logic and even most command line options
with pkg/vm gen_kernel tool.

Also, this CL attempts to share some pieces of code between frontend
server and gen_kernel.

In addition, seperate bytecode generation for package-split binaries
is implemented (needed for https://dart-review.googlesource.com/c/sdk/+/85469).

Corresponding Fuchsia CL: https://fuchsia-review.googlesource.com/c/topaz/+/229964

Change-Id: I12d7b2f6401357b3c9df2e31bc736af5a9dc5fd2
Reviewed-on: https://dart-review.googlesource.com/c/85721
Reviewed-by: Alexander Aprelev <aam@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
5 files changed
tree: dca61cb92da5dfdb2e86a0dd26d6f5bebb78d61f
  1. .github/
  2. build/
  3. client/
  4. docs/
  5. pkg/
  6. runtime/
  7. samples/
  8. samples-dev/
  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. .packages
  21. .vpython
  22. AUTHORS
  23. BUILD.gn
  24. CHANGELOG.md
  25. codereview.settings
  26. CONTRIBUTING.md
  27. dartdoc_options.yaml
  28. DEPS
  29. LICENSE
  30. PATENTS
  31. PRESUBMIT.py
  32. README.dart-sdk
  33. README.md
  34. WATCHLISTS
README.md

Dart

Dart is an open-source, scalable programming language, with robust libraries and runtimes, for building web, server, and mobile apps.

Using Dart

Visit the dartlang.org to learn more about the language, tools, getting started, and more.

Browse pub.dartlang.org 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.

License & patents

See LICENSE and PATENTS.