linux/tools/lib/perf/include/internal/evsel.h
Jiri Olsa 38fe0e0156 libperf: Move 'idx' from tools/perf to perf_evsel::idx
Move evsel::idx to perf_evsel::idx, so we can move the group interface
to libperf.

Committer notes:

Fixup evsel->idx usage in tools/perf/util/bpf_counter_cgroup.c, that
appeared in my tree in my local tree.

Also fixed up these:

$ find tools/perf/ -name "*.[ch]" | xargs grep 'evsel->idx'
tools/perf/ui/gtk/annotate.c:                      evsel->idx + i);
tools/perf/ui/gtk/annotate.c:                   evsel->idx);
$

That running 'make -C tools/perf build-test' caught.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Requested-by: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210706151704.73662-3-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-07-09 14:04:28 -03:00

66 lines
1.8 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 *mmap;
struct xyarray *sample_id;
u64 *id;
u32 ids;
/* parse modifier helper */
int nr_members;
bool system_wide;
int idx;
};
void perf_evsel__init(struct perf_evsel *evsel, struct perf_event_attr *attr,
int idx);
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 */