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authorWang Nan <[email protected]>2016-06-27 10:24:05 +0000
committerArnaldo Carvalho de Melo <[email protected]>2016-06-28 10:54:54 -0300
commitee667f947c926eda1b8d6eccd0894bfbed75b6e3 (patch)
treec053b44aed972bba0f81a92da3f308f73b51e846
parentcb21686b7d37776cfd34793f08d6466ce9091a7d (diff)
perf record: Prepare picking perf_event_mmap_page from multiple evlists
Following commits introduce new evlists to record. This patch adjusts record__pick_pc() and introduces perf_evlist__pick_pc() to read control page from one specific evlist. record__pick_pc() will be improved to search control page from multiple evlists. Signed-off-by: Wang Nan <[email protected]> Cc: He Kuang <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Nilay Vaish <[email protected]> Cc: Zefan Li <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
-rw-r--r--tools/perf/builtin-record.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 18e9abc90759..b2b3b600adf5 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -686,10 +686,21 @@ perf_event__synth_time_conv(const struct perf_event_mmap_page *pc __maybe_unused
return 0;
}
+static const struct perf_event_mmap_page *
+perf_evlist__pick_pc(struct perf_evlist *evlist)
+{
+ if (evlist && evlist->mmap && evlist->mmap[0].base)
+ return evlist->mmap[0].base;
+ return NULL;
+}
+
static const struct perf_event_mmap_page *record__pick_pc(struct record *rec)
{
- if (rec->evlist && rec->evlist->mmap && rec->evlist->mmap[0].base)
- return rec->evlist->mmap[0].base;
+ const struct perf_event_mmap_page *pc;
+
+ pc = perf_evlist__pick_pc(rec->evlist);
+ if (pc)
+ return pc;
return NULL;
}