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perf evsel: Introduce mmap support

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Out of the code in 'perf top'. Record is next in line.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2011-01-12 17:03:24 -02:00
parent dd7927f4f8
commit 70082dd92c
6 changed files with 107 additions and 66 deletions
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8
tools/perf/util/evsel.h
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@@ -29,19 +29,23 @@ struct perf_evsel {
struct perf_event_attr attr;
char *filter;
struct xyarray *fd;
struct xyarray *mmap;
struct perf_counts *counts;
size_t mmap_len;
int idx;
void *priv;
};
struct cpu_map;
struct thread_map;
struct perf_evlist;
struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx);
void perf_evsel__delete(struct perf_evsel *evsel);
int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
int perf_evsel__alloc_mmap(struct perf_evsel *evsel, int ncpus, int nthreads);
void perf_evsel__free_fd(struct perf_evsel *evsel);
void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
@@ -51,6 +55,10 @@ int perf_evsel__open_per_thread(struct perf_evsel *evsel,
struct thread_map *threads, bool group, bool inherit);
int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
struct thread_map *threads, bool group, bool inherit);
int perf_evsel__mmap(struct perf_evsel *evsel, struct cpu_map *cpus,
struct thread_map *threads, int pages,
struct perf_evlist *evlist);
void perf_evsel__munmap(struct perf_evsel *evsel, int ncpus, int nthreads);
#define perf_evsel__match(evsel, t, c) \
(evsel->attr.type == PERF_TYPE_##t && \