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Ian Rogers
9d2dc632e0
Maintaining the number of groups during event parsing is problematic and since changing to sort/regroup events can only be computed by a linear pass over the evlist. As the value is generally only used in tests, rather than hold it in a variable compute it by passing over the evlist when necessary. This change highlights that libpfm's counting of groups with a single entry disagreed with regular event parsing. The libpfm tests are updated accordingly. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Florian Fischer <florian.fischer@muhq.space> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Kim Phillips <kim.phillips@amd.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Sean Christopherson <seanjc@google.com> Cc: Steinar H. Gunderson <sesse@google.com> Cc: Stephane Eranian <eranian@google.com> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20230312021543.3060328-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
52 lines
2.1 KiB
C
52 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __LIBPERF_EVLIST_H
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#define __LIBPERF_EVLIST_H
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#include <perf/core.h>
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#include <stdbool.h>
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struct perf_evlist;
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struct perf_evsel;
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struct perf_cpu_map;
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struct perf_thread_map;
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LIBPERF_API void perf_evlist__add(struct perf_evlist *evlist,
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struct perf_evsel *evsel);
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LIBPERF_API void perf_evlist__remove(struct perf_evlist *evlist,
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struct perf_evsel *evsel);
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LIBPERF_API struct perf_evlist *perf_evlist__new(void);
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LIBPERF_API void perf_evlist__delete(struct perf_evlist *evlist);
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LIBPERF_API struct perf_evsel* perf_evlist__next(struct perf_evlist *evlist,
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struct perf_evsel *evsel);
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LIBPERF_API int perf_evlist__open(struct perf_evlist *evlist);
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LIBPERF_API void perf_evlist__close(struct perf_evlist *evlist);
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LIBPERF_API void perf_evlist__enable(struct perf_evlist *evlist);
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LIBPERF_API void perf_evlist__disable(struct perf_evlist *evlist);
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#define perf_evlist__for_each_evsel(evlist, pos) \
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for ((pos) = perf_evlist__next((evlist), NULL); \
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(pos) != NULL; \
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(pos) = perf_evlist__next((evlist), (pos)))
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LIBPERF_API void perf_evlist__set_maps(struct perf_evlist *evlist,
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struct perf_cpu_map *cpus,
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struct perf_thread_map *threads);
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LIBPERF_API int perf_evlist__poll(struct perf_evlist *evlist, int timeout);
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LIBPERF_API int perf_evlist__filter_pollfd(struct perf_evlist *evlist,
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short revents_and_mask);
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LIBPERF_API int perf_evlist__mmap(struct perf_evlist *evlist, int pages);
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LIBPERF_API void perf_evlist__munmap(struct perf_evlist *evlist);
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LIBPERF_API struct perf_mmap *perf_evlist__next_mmap(struct perf_evlist *evlist,
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struct perf_mmap *map,
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bool overwrite);
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#define perf_evlist__for_each_mmap(evlist, pos, overwrite) \
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for ((pos) = perf_evlist__next_mmap((evlist), NULL, overwrite); \
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(pos) != NULL; \
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(pos) = perf_evlist__next_mmap((evlist), (pos), overwrite))
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LIBPERF_API void perf_evlist__set_leader(struct perf_evlist *evlist);
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LIBPERF_API int perf_evlist__nr_groups(struct perf_evlist *evlist);
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#endif /* __LIBPERF_EVLIST_H */
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