[libcamera-devel] [PATCH 0/1] Use tracing with perfetto in ChromeOS

[Harvey Yang]

Hello everyone,

This is the first draft of the patch(es) that uses tracing with perfetto
instead of lttng when libcamera is used in ChromeOS, which already uses
perfetto to collect traces in most of the applications/services.

Please take a look and see if it's the right direction to go. Mostly I
copied and pasted the simple producer in chromiumos (also written by
me :) ):
https://chromium.googlesource.com/chromiumos/platform2/+/HEAD/perfetto_simple_producer

Thanks!

BR,
Harvey

Harvey Yang (1):
  Use tracing with perfetto in ChromeOS

 include/libcamera/internal/tracepoints.h.in   | 37 +++++++++--
 .../internal/tracepoints/meson.build          | 25 ++++---
 .../internal/tracepoints/pipeline.perfetto    | 10 +++
 .../internal/tracepoints/request.perfetto     | 30 +++++++++
 meson.build                                   |  1 +
 src/android/cros/camera3_hal.cpp              |  5 ++
 src/android/cros/meson.build                  |  1 +
 src/libcamera/meson.build                     | 18 ++++-
 src/libcamera/pipeline_perfetto.cpp           | 22 +++++++
 src/libcamera/request_perfetto.cpp            | 65 +++++++++++++++++++
 src/libcamera/tracepoints.cpp                 | 11 ++++
 11 files changed, 209 insertions(+), 16 deletions(-)
 create mode 100644 include/libcamera/internal/tracepoints/pipeline.perfetto
 create mode 100644 include/libcamera/internal/tracepoints/request.perfetto
 create mode 100644 src/libcamera/pipeline_perfetto.cpp
 create mode 100644 src/libcamera/request_perfetto.cpp

-- 
2.36.1.476.g0c4daa206d-goog