weston/libweston/perfetto/u_perfetto.h
Derek Foreman bdfe7a3e58 libweston: Add support for perfetto profiling
This borrows heavily from the Mesa project's perfetto instrumentation, and
for now just adds perfetto to the build and a collection of useful macros
for adding trace points.

The atomics have been cargo culted in - Weston currently has no need of
such things, but I guess they're harmless for now and could be useful if
we consider threads in the future.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2025-01-24 12:22:13 +00:00

127 lines
3.2 KiB
C

/*
* Copyright © 2021 Google, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
/* This code was lifted from Mesa, some code removed (eg: weston does not support
* WIN32), and edited to conform to weston coding style.
*
* The original copyright boilerplate has been retained.
*/
#ifndef _UTIL_PERFETTO_H
#define _UTIL_PERFETTO_H
#include "stdint.h"
#include <time.h>
#include "u_atomic.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifdef HAVE_PERFETTO
extern int util_perfetto_tracing_state;
void util_perfetto_init(void);
static inline bool
util_perfetto_is_tracing_enabled(void)
{
return p_atomic_read_relaxed(&util_perfetto_tracing_state);
}
void util_perfetto_trace_begin(const char *name);
void util_perfetto_trace_end(void);
void util_perfetto_trace_begin_flow(const char *fname, uint64_t id);
void util_perfetto_counter_set(const char *name, double value);
void util_perfetto_trace_full_begin(const char *name, uint64_t track_id, uint64_t id, clockid_t clock, uint64_t timestamp);
void util_perfetto_trace_full_end(const char *name, uint64_t track_id, clockid_t clock, uint64_t timestamp);
uint64_t util_perfetto_next_id(void);
uint64_t util_perfetto_new_track(const char *name);
#else /* HAVE_PERFETTO */
static inline void
util_perfetto_init(void)
{
}
static inline bool
util_perfetto_is_tracing_enabled(void)
{
return false;
}
static inline void
util_perfetto_trace_begin(const char *name)
{
}
static inline void
util_perfetto_trace_end(void)
{
}
static inline void util_perfetto_trace_begin_flow(const char *fname, uint64_t id)
{
}
static inline void
util_perfetto_trace_full_begin(const char *name, uint64_t track_id, uint64_t id, clockid_t clock, uint64_t timestamp)
{
}
static inline void
util_perfetto_trace_full_end(const char *name, uint64_t track_id, clockid_t clock, uint64_t timestamp)
{
}
static inline void util_perfetto_counter_set(const char *name, double value)
{
}
static inline uint64_t util_perfetto_next_id(void)
{
return 0;
}
static inline uint64_t util_perfetto_new_track(const char *name)
{
return 0;
}
#endif /* HAVE_PERFETTO */
#ifdef __cplusplus
}
#endif
#endif /* _UTIL_PERFETTO_H */