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crosvm/perfetto/README.md
Noah Gold f7095ff46a Upstream the perfetto crate. 
This is a step towards upstreaming Perfetto support (adding the
Perfetto Rust wrappers). These wrappers won't compile until we have
the Perfetto source & libraries in place.

BUG=b:277138899
TEST=n/a

Change-Id: Ic9cc86285383b114cecf7cfe574b3e2511d7afeb
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4428221
Reviewed-by: Steven Moreland <smoreland@google.com>
Reviewed-by: Morg <morg@chromium.org>
Reviewed-by: Dennis Kempin <denniskempin@google.com>
Reviewed-by: Keiichi Watanabe <keiichiw@chromium.org>
Commit-Queue: Noah Gold <nkgold@google.com>
2023-05-11 18:12:36 +00:00

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Perfetto Rust wrapper

The following instructions are based on tools/impl/bindgen-common.sh

When the Perfetto C API is updated, in order to regenerate the bindings:

  1. Download the bindgen cmdline tool.
  2. Run the bindgen command. If you are in crosvm: 
    $ bindgen third_party/perfetto/include/perfetto/tracing/ctrace.h --disable-header-comment --no-layout-tests --no-doc-comments --with-derive-default --size_t-is-usize -o ./perfetto/src/bindings.rs
  3. Add the following to the top of the new bindings.rs file: 
    #![allow(clippy::missing_safety_doc)]
#![allow(clippy::upper_case_acronyms)]
#![allow(non_upper_case_globals)]
#![allow(non_camel_case_types)]
#![allow(non_snake_case)]
#![allow(dead_code)]
  4. Finally, add a copyright header to the bindings.