Clone this repo:


  1. d010cbf Roll Fuchsia SDK from 890969277383 to 890966468924 by chromium-autoroll · 3 hours ago master
  2. 2fad16f Patch Windows 10.0.18362.0 SDK (1903) toolchain by Bruce Dawson · 3 hours ago
  3. f299bfc Android: Add Python tool for parsing dex files. by Eric Stevenson · 3 hours ago
  4. 02a9af6 [Fuchsia] Remove system logging logic from RunPackage() by Sergey Ulanov · 4 hours ago
  5. ac0c564 android: add stack script to's data_deps. by John Budorick · 5 hours ago


//build contains:

  • Core GN templates and configuration
  • Core Python build scripts

Since this directory is DEPS'ed in by some other repositories (webrtc, pdfium, v8, etc), it should be kept as self-contained as possible by not referring to files outside of it. Some exceptions exist (//testing, select //third_party subdirectories), but new dependencies tend to break these other projects, and so should be avoided.

Changes to //build should be landed in the Chromium repo. They will then be replicated to the stand-alone build repo by the gsubtreed tool.


  • //build/config - Common templates via .gni files.
  • //build/toolchain - GN toolchain definitions.
  • Other .py files - Some are used by GN/Ninja. Some by gclient hooks, some are just random utilities.

Files referenced by //.gn:

  • //build/ - Included by all files.
  • //build/secondary - An overlay for files. Enables adding to directories that live in sub-repositories.
  • //build_overrides - Refer to //build_overrides/