Commit-ID: ee667f947c926eda1b8d6eccd0894bfbed75b6e3
Gitweb: http://git.kernel.org/tip/ee667f947c926eda1b8d6eccd0894bfbed75b6e3
Author: Wang Nan <wangnan0@xxxxxxxxxx>
AuthorDate: Mon, 27 Jun 2016 10:24:05 +0000
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Tue, 28 Jun 2016 10:54:54 -0300
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 <wangnan0@xxxxxxxxxx>
Cc: He Kuang <hekuang@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Nilay Vaish <nilayvaish@xxxxxxxxx>
Cc: Zefan Li <lizefan@xxxxxxxxxx>
Cc: pi3orama@xxxxxxx
Link: http://lkml.kernel.org/r/1467023052-146749-4-git-send-email-wangnan0@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/builtin-record.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 18e9abc..b2b3b60 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;
}
--
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