[vm] Add --disassemble-relative to use PC offsets instead of absolute PCs in --disassemble's output.

Makes it much easier to compare the output when making VM changes.

        ;; Invocation Count Check
0x7f82b8900320    498b7c2437             movq rdi,[r12+0x37]
0x7f82b8900325    ff8783000000           incl [rdi+0x83]
0x7f82b890032b    81bf8300000030750000   cmpl [rdi+0x83],0x7530
0x7f82b8900335    7c07                   jl 0x00007f82b890033e
0x7f82b8900337    41ffa6b8010000         jmp [thr+0x1b8]

--disassemble --disassemble-relative:
        ;; Invocation Count Check
0x0    498b7c2437             movq rdi,[r12+0x37]
0x5    ff8783000000           incl [rdi+0x83]
0xb    81bf8300000030750000   cmpl [rdi+0x83],0x7530
0x15    7c07                   jl +9
0x17    41ffa6b8010000         jmp [thr+0x1b8]

Change-Id: Ie05c532f830027b928d7d1d57509eb237157a127
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/106600
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: RĂ©gis Crelier <regis@google.com>
Reviewed-by: Aart Bik <ajcbik@google.com>
8 files changed
tree: 425d1c30324a2a2cc137ea05907e3a3f7c081c9b
  1. .clang-format
  2. .gitattributes
  3. .gitconfig
  4. .github/
  5. .gitignore
  6. .gn
  7. .mailmap
  8. .packages
  9. .vpython
  11. BUILD.gn
  12. CHANGELOG.md
  14. DEPS
  17. PRESUBMIT.py
  18. README.dart-sdk
  19. README.md
  21. build/
  22. client/
  23. codereview.settings
  24. docs/
  25. pkg/
  26. runtime/
  27. samples-dev/
  28. samples/
  29. sdk/
  30. tests/
  31. third_party/
  32. tools/
  33. utils/


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 has 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.


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.