tools: python amalgamation for tools/tracebox etc

Before this change:
the business logic for tools/{tracebox, record_android_trace, ...}
was in the file itself and the manifest was replaced in-place
when invoking tools/roll-prebuilts.
This still made it impossible to share code between tools
without copy/pasting.

With this change:
- Move the business logic to python/xxx
- Add an amalgamator that follows includes. Only the form
  'from perfetto.xxx import yyy' is supported.
- Keep the amalgamated files in tools/traceconv

No code sharing / major refactorings are made by this change.
They can happen as a follow-up though

Change-Id: I7420387881e6ef1e109abae6380dde7c06ac1b27
22 files changed
tree: 68a60fddefb8e2f5bf9aa378bd2b7cb77f8962fc
  1. .github/
  2. bazel/
  3. build_overrides/
  4. buildtools/
  5. debian/
  6. docs/
  7. examples/
  8. gn/
  9. include/
  10. infra/
  11. protos/
  12. python/
  13. src/
  14. test/
  15. tools/
  16. ui/
  17. .clang-format
  18. .clang-tidy
  19. .gitattributes
  20. .gitignore
  21. .gn
  22. .style.yapf
  23. Android.bp
  24. Android.bp.extras
  25. BUILD
  26. BUILD.extras
  27. BUILD.gn
  28. CHANGELOG
  29. codereview.settings
  30. DIR_METADATA
  31. heapprofd.rc
  32. LICENSE
  33. meson.build
  34. METADATA
  35. MODULE_LICENSE_APACHE2
  36. OWNERS
  37. perfetto.rc
  38. PerfettoIntegrationTests.xml
  39. PRESUBMIT.py
  40. README.chromium
  41. README.md
  42. TEST_MAPPING
  43. traced_perf.rc
  44. WORKSPACE
README.md

Perfetto - System profiling, app tracing and trace analysis

Perfetto is a production-grade open-source stack for performance instrumentation and trace analysis. It offers services and libraries and for recording system-level and app-level traces, native + java heap profiling, a library for analyzing traces using SQL and a web-based UI to visualize and explore multi-GB traces.

See https://perfetto.dev/docs or the /docs/ directory for documentation.