[gn] Add top-level BUILD.gn and forwarding targets to //build/gn:*

This adds a top-level BUILD.gn file and defines it as the root (by
removing the root_build override in //.gn) and adds forwarding rules to
the top-level target definitions in //build/gn/BUILD.gn. Also moves the
file generation steps to the top level BUILD.gn file.

The other rules in //build/gn/BUILD.gn should move too, but they are
currently referred to by infrastructure configuration files. They can
move after this lands and rolls to GI and the infra configs are updated.

Change-Id: I2043cc507944158cfe691db884d9fc79c2e80cc4
3 files changed
tree: 30d1c43ba03c703a4def9d9bf5556f850a19eb6d
  1. boards/
  2. build/
  3. buildtools/
  4. bundles/
  5. docs/
  6. examples/
  7. garnet/
  8. peridot/
  9. products/
  10. scripts/
  11. sdk/
  12. src/
  13. third_party/
  14. tools/
  15. zircon/
  16. .clang-format
  17. .dir-locals.el
  18. .gitattributes
  19. .gitignore
  20. .gn
  21. AUTHORS
  22. BUILD.gn
  23. CODE_OF_CONDUCT.md
  24. CONTRIBUTING.md
  25. LICENSE
  26. OWNERS
  27. PATENTS
  28. README.md
  29. rustfmt.toml
README.md

Fuchsia

Pink + Purple == Fuchsia (a new operating system)

What is Fuchsia?

Fuchsia is a modular, capability-based operating system. Fuchsia runs on modern 64-bit Intel and ARM processors.

Fuchsia is an open source project with a code of conduct that we expect everyone who interacts with the project to respect.

How can I build and run Fuchsia?

See Getting Started.

Where can I learn more about Fuchsia?

See the documentation.