fba7c86601
Move evsel::leader to perf_evsel::leader, so we can move the group
interface to libperf.
Also add several evsel helpers to ease up the transition:
struct evsel *evsel__leader(struct evsel *evsel);
- get leader evsel
bool evsel__has_leader(struct evsel *evsel, struct evsel *leader);
- true if evsel has leader as leader
bool evsel__is_leader(struct evsel *evsel);
- true if evsel is itw own leader
void evsel__set_leader(struct evsel *evsel, struct evsel *leader);
- set leader for evsel
Committer notes:
Fix this when building with 'make BUILD_BPF_SKEL=1'
tools/perf/util/bpf_counter.c
- if (evsel->leader->core.nr_members > 1) {
+ if (evsel->core.leader->nr_members > 1) {
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/20210706151704.73662-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __LIBPERF_INTERNAL_EVSEL_H
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#define __LIBPERF_INTERNAL_EVSEL_H
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#include <linux/types.h>
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#include <linux/perf_event.h>
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#include <stdbool.h>
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#include <sys/types.h>
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struct perf_cpu_map;
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struct perf_thread_map;
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struct xyarray;
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/*
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* Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are
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* more than one entry in the evlist.
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*/
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struct perf_sample_id {
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struct hlist_node node;
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u64 id;
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struct perf_evsel *evsel;
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/*
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* 'idx' will be used for AUX area sampling. A sample will have AUX area
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* data that will be queued for decoding, where there are separate
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* queues for each CPU (per-cpu tracing) or task (per-thread tracing).
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* The sample ID can be used to lookup 'idx' which is effectively the
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* queue number.
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*/
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int idx;
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int cpu;
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pid_t tid;
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/* Holds total ID period value for PERF_SAMPLE_READ processing. */
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u64 period;
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};
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struct perf_evsel {
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struct list_head node;
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struct perf_event_attr attr;
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struct perf_cpu_map *cpus;
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struct perf_cpu_map *own_cpus;
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struct perf_thread_map *threads;
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struct xyarray *fd;
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struct xyarray *mmap;
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struct xyarray *sample_id;
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u64 *id;
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u32 ids;
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struct perf_evsel *leader;
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/* parse modifier helper */
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int nr_members;
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bool system_wide;
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int idx;
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};
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void perf_evsel__init(struct perf_evsel *evsel, struct perf_event_attr *attr,
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int idx);
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int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
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void perf_evsel__close_fd(struct perf_evsel *evsel);
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void perf_evsel__free_fd(struct perf_evsel *evsel);
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int perf_evsel__read_size(struct perf_evsel *evsel);
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int perf_evsel__apply_filter(struct perf_evsel *evsel, const char *filter);
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int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
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void perf_evsel__free_id(struct perf_evsel *evsel);
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#endif /* __LIBPERF_INTERNAL_EVSEL_H */
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