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| author | Leo Yan <leo.yan@linaro.org> | 2020-11-06 17:48:46 +0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-11-11 10:29:12 -0300 |
| commit | eaf6aaeec5fa301c0eb8ae92962909b15d075e5f (patch) | |
| tree | 7eaf70180284fc30b5b72ec594722c51c6face8c /tools/perf/builtin-c2c.c | |
| parent | f9f16dfbe76e63ba9aec68055c08242b09be297e (diff) | |
| download | linux-eaf6aaeec5fa301c0eb8ae92962909b15d075e5f.tar.gz linux-eaf6aaeec5fa301c0eb8ae92962909b15d075e5f.tar.bz2 linux-eaf6aaeec5fa301c0eb8ae92962909b15d075e5f.zip | |
perf mem: Introduce weak function perf_mem_events__ptr()
Different architectures might use different event or different event
parameters for memory profiling, this patch introduces a weak
perf_mem_events__ptr() function which allows to return back a
architecture specific memory event.
Since the variable 'perf_mem_events' can be only accessed by the
perf_mem_events__ptr() function, mark the variable as 'static', this
allows the architectures to define its own memory event array.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20201106094853.21082-3-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-c2c.c')
| -rw-r--r-- | tools/perf/builtin-c2c.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c index d5bea5d3cd51..4d1a08e38233 100644 --- a/tools/perf/builtin-c2c.c +++ b/tools/perf/builtin-c2c.c @@ -2867,6 +2867,7 @@ static int perf_c2c__record(int argc, const char **argv) int ret; bool all_user = false, all_kernel = false; bool event_set = false; + struct perf_mem_event *e; struct option options[] = { OPT_CALLBACK('e', "event", &event_set, "event", "event selector. Use 'perf c2c record -e list' to list available events", @@ -2894,11 +2895,15 @@ static int perf_c2c__record(int argc, const char **argv) rec_argv[i++] = "record"; if (!event_set) { - perf_mem_events[PERF_MEM_EVENTS__LOAD].record = true; - perf_mem_events[PERF_MEM_EVENTS__STORE].record = true; + e = perf_mem_events__ptr(PERF_MEM_EVENTS__LOAD); + e->record = true; + + e = perf_mem_events__ptr(PERF_MEM_EVENTS__STORE); + e->record = true; } - if (perf_mem_events[PERF_MEM_EVENTS__LOAD].record) + e = perf_mem_events__ptr(PERF_MEM_EVENTS__LOAD); + if (e->record) rec_argv[i++] = "-W"; rec_argv[i++] = "-d"; @@ -2906,12 +2911,13 @@ static int perf_c2c__record(int argc, const char **argv) rec_argv[i++] = "--sample-cpu"; for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) { - if (!perf_mem_events[j].record) + e = perf_mem_events__ptr(j); + if (!e->record) continue; - if (!perf_mem_events[j].supported) { + if (!e->supported) { pr_err("failed: event '%s' not supported\n", - perf_mem_events[j].name); + perf_mem_events__name(j)); free(rec_argv); return -1; } |