70c20369ee
Add perf_evsel__alloc_id()/perf_evsel__free_id() functions to libperf as internal functions. Move 'struct perf_sample_id' to internal/evsel.h header and change 'struct perf_sample_id::evsel' to 'struct perf_evsel' and the related code that touches it. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lore.kernel.org/lkml/20190913132355.21634-28-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __LIBPERF_INTERNAL_EVSEL_H
|
|
#define __LIBPERF_INTERNAL_EVSEL_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/perf_event.h>
|
|
#include <stdbool.h>
|
|
#include <sys/types.h>
|
|
|
|
struct perf_cpu_map;
|
|
struct perf_thread_map;
|
|
struct xyarray;
|
|
|
|
/*
|
|
* Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are
|
|
* more than one entry in the evlist.
|
|
*/
|
|
struct perf_sample_id {
|
|
struct hlist_node node;
|
|
u64 id;
|
|
struct perf_evsel *evsel;
|
|
/*
|
|
* 'idx' will be used for AUX area sampling. A sample will have AUX area
|
|
* data that will be queued for decoding, where there are separate
|
|
* queues for each CPU (per-cpu tracing) or task (per-thread tracing).
|
|
* The sample ID can be used to lookup 'idx' which is effectively the
|
|
* queue number.
|
|
*/
|
|
int idx;
|
|
int cpu;
|
|
pid_t tid;
|
|
|
|
/* Holds total ID period value for PERF_SAMPLE_READ processing. */
|
|
u64 period;
|
|
};
|
|
|
|
struct perf_evsel {
|
|
struct list_head node;
|
|
struct perf_event_attr attr;
|
|
struct perf_cpu_map *cpus;
|
|
struct perf_cpu_map *own_cpus;
|
|
struct perf_thread_map *threads;
|
|
struct xyarray *fd;
|
|
struct xyarray *sample_id;
|
|
u64 *id;
|
|
u32 ids;
|
|
|
|
/* parse modifier helper */
|
|
int nr_members;
|
|
bool system_wide;
|
|
};
|
|
|
|
int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
|
|
void perf_evsel__close_fd(struct perf_evsel *evsel);
|
|
void perf_evsel__free_fd(struct perf_evsel *evsel);
|
|
int perf_evsel__read_size(struct perf_evsel *evsel);
|
|
int perf_evsel__apply_filter(struct perf_evsel *evsel, const char *filter);
|
|
|
|
int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
|
|
void perf_evsel__free_id(struct perf_evsel *evsel);
|
|
|
|
#endif /* __LIBPERF_INTERNAL_EVSEL_H */
|