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review.blissroms.org / platform_build_blueprint / 937efab2e60b0fdcb623b31032f6624bff792aa8
commit937efab2e60b0fdcb623b31032f6624bff792aa8[log] [tgz]
authorColin Cross <ccross@android.com>Wed Jan 23 13:24:26 2019 -0800
committerColin Cross <ccross@android.com>Wed Jan 23 13:26:42 2019 -0800
tree1d8d46f7892b8eb115ffd312eebf2b6b9ab0bdb4
parentde7afaaf749957b3b7c03036e36c99a5ac7e3afb [diff]
Use sync.Map for type field cache

The type field cache was using an atomic pointer to an immutable
map, which required copying the entire map each time a cache
entry was added.  Profiling showed that this was a significant
hot spot.  Use sync.Map instead.

Change-Id: Ie7c779c5e9e2be1cd530747d74025dcfd206763a
1 file changed
tree: 1d8d46f7892b8eb115ffd312eebf2b6b9ab0bdb4
  1. bootstrap/
  2. bpfmt/
  3. bpmodify/
  4. deptools/
  5. gotestmain/
  6. gotestrunner/
  7. loadplugins/
  8. microfactory/
  9. parser/
  10. pathtools/
  11. proptools/
  12. tests/
  13. .gitignore
  14. .travis.fix-fork.sh
  15. .travis.gofmt.sh
  16. .travis.install-ninja.sh
  17. .travis.yml
  18. blueprint.bash
  19. blueprint_impl.bash
  20. Blueprints
  21. bootstrap.bash
  22. context.go
  23. context_test.go
  24. CONTRIBUTING.md
  25. doc.go
  26. glob.go
  27. glob_test.go
  28. go.mod
  29. LICENSE
  30. live_tracker.go
  31. mangle.go
  32. module_ctx.go
  33. name_interface.go
  34. ninja_defs.go
  35. ninja_strings.go
  36. ninja_strings_test.go
  37. ninja_writer.go
  38. ninja_writer_test.go
  39. package_ctx.go
  40. README.md
  41. scope.go
  42. singleton_ctx.go
  43. splice_modules_test.go
  44. unpack.go
  45. unpack_test.go
  46. visit_test.go
README.md

Blueprint Build System

Build Status

Blueprint is a meta-build system that reads in Blueprints files that describe modules that need to be built, and produces a Ninja manifest describing the commands that need to be run and their dependencies. Where most build systems use built-in rules or a domain-specific language to describe the logic for converting module descriptions to build rules, Blueprint delegates this to per-project build logic written in Go. For large, heterogenous projects this allows the inherent complexity of the build logic to be maintained in a high-level language, while still allowing simple changes to individual modules by modifying easy to understand Blueprints files.