[wasm] Move code generation fully to background task.

This moves the entire code generation phase (including code emission
into the native module) into the background task. The code manager is
fully thread safe by now and there are no Isolate-bound steps anymore.

The only step remaining on the foreground task is publishing the fully
finished code to other threads via {NativeModule::PublishCode}.

R=clemensh@chromium.org
BUG=v8:7921

Change-Id: Ia64c6ce945aabd071b26e61ef8d397fb7727a038
Reviewed-on: https://chromium-review.googlesource.com/1135004
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54425}
6 files changed
tree: 9c00b84367b9c264651afa7d66dded34f9d30433
  1. benchmarks/
  2. build_overrides/
  3. custom_deps/
  4. docs/
  5. gni/
  6. include/
  7. infra/
  8. samples/
  9. src/
  10. test/
  11. testing/
  12. third_party/
  13. tools/
  14. .clang-format
  15. .editorconfig
  16. .git-blame-ignore-revs
  17. .gitattributes
  18. .gitignore
  19. .gn
  20. .vpython
  21. .ycm_extra_conf.py
  22. AUTHORS
  23. BUILD.gn
  24. ChangeLog
  25. CODE_OF_CONDUCT.md
  26. codereview.settings
  27. DEPS
  28. LICENSE
  29. LICENSE.fdlibm
  30. LICENSE.strongtalk
  31. LICENSE.v8
  32. LICENSE.valgrind
  33. OWNERS
  34. PRESUBMIT.py
  35. README.md
  36. snapshot_toolchain.gni
  37. WATCHLISTS
README.md

V8 JavaScript Engine

V8 is Google's open source JavaScript engine.

V8 implements ECMAScript as specified in ECMA-262.

V8 is written in C++ and is used in Google Chrome, the open source browser from Google.

V8 can run standalone, or can be embedded into any C++ application.

V8 Project page: https://github.com/v8/v8/wiki

Getting the Code

Checkout depot tools, and run

    fetch v8

This will checkout V8 into the directory v8 and fetch all of its dependencies. To stay up to date, run

    git pull origin
    gclient sync

For fetching all branches, add the following into your remote configuration in .git/config:

    fetch = +refs/branch-heads/*:refs/remotes/branch-heads/*
    fetch = +refs/tags/*:refs/tags/*

Contributing

Please follow the instructions mentioned on the V8 wiki.