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Message-Id: <1467061300-5170-11-git-send-email-acme@kernel.org>
Date: Mon, 27 Jun 2016 18:01:32 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: linux-kernel@...r.kernel.org, Wang Nan <wangnan0@...wei.com>,
He Kuang <hekuang@...wei.com>, Jiri Olsa <jolsa@...nel.org>,
Masami Hiramatsu <mhiramat@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Nilay Vaish <nilayvaish@...il.com>,
Zefan Li <lizefan@...wei.com>, pi3orama@....com,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 10/18] perf record: Prepare picking perf_event_mmap_page from multiple evlists
From: Wang Nan <wangnan0@...wei.com>
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@...wei.com>
Cc: He Kuang <hekuang@...wei.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Masami Hiramatsu <mhiramat@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Nilay Vaish <nilayvaish@...il.com>
Cc: Zefan Li <lizefan@...wei.com>
Cc: pi3orama@....com
Link: http://lkml.kernel.org/r/1467023052-146749-4-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
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 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;
}
--
2.7.4
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