1 // Copyright 2022 The ChromiumOS Authors 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 cfg_if::cfg_if! { 6 if #[cfg(feature = "trace_marker")] { 7 /// A wrapper around trace_marker tracing features 8 mod trace_marker; 9 pub use trace_marker::*; 10 } else if #[cfg(feature = "perfetto")] { 11 mod perfetto; 12 pub use perfetto::*; 13 } 14 else { 15 /// A crate that provides noop tracing. 16 mod noop; 17 pub use noop::*; 18 } 19 } 20