Use protozero in .gen.cc proto->C++ classes

This CL is the major step towards geting rid of the
libprotobuf runtime dep (see go/perfetto-libprotobuf).
It switches the .gen.cc files to uses protozero for the
proto<>c++ conversions.
As-is it still support the legacy conversion from
libprotobuf-lite classes, but that is done going via
raw binary. So FromProto() now goes
pblite -> raw bytes -> pbzero decoder and ToProto() goes
pbzero -> raw_bytes -> pblite.
Effectively this doubles the round-trip for these two methods.
The next CLs will get rid of the FromProto/ToProto methods
and will switch the IPC layer to just use the .gen.cc classes
instead of the pblite ones.

Bug: 132880619
Change-Id: I721876c95dfa987b9aaa5a1009eeb64baa7e37dc
10 files changed
tree: a2d0e84b619e4b8e1f2540577823b741121d1595
  1. bazel/
  2. build_overrides/
  3. buildtools/
  4. debian/
  5. docs/
  6. gn/
  7. include/
  8. infra/
  9. protos/
  10. src/
  11. test/
  12. tools/
  13. ui/
  14. .clang-format
  15. .gitignore
  16. .gn
  17. .style.yapf
  18. Android.bp
  19. Android.bp.extras
  20. BUILD
  21. BUILD.extras
  22. BUILD.gn
  23. codereview.settings
  24. heapprofd.rc
  25. MODULE_LICENSE_APACHE2
  26. NOTICE
  27. OWNERS
  28. perfetto.rc
  29. PRESUBMIT.py
  30. README.chromium
  31. README.md
  32. TEST_MAPPING
  33. WORKSPACE
README.md

Perfetto - Performance instrumentation and tracing

Perfetto is an open-source project for performance instrumentation and tracing of Linux/Android/Chrome platforms and user-space apps.

See www.perfetto.dev for docs.

Bugs

  • For bugs affecting Android or the tracing internals use the internal bug tracker (go/perfetto-bugs).
  • For bugs affecting Chrome use http://crbug.com, Component:Speed>Tracing label:Perfetto.

Community

You can reach us on our Discord channel. If you prefer using IRC we have an experimental Discord <> IRC bridge synced with #perfetto-dev on Freenode.