Commit ee667f94 authored Jun 27, 2016 by Wang Nan Committed by Arnaldo Carvalho de Melo Jun 28, 2016

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@huawei.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nilay Vaish <nilayvaish@gmail.com>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1467023052-146749-4-git-send-email-wangnan0@huawei.com

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent cb21686b

tools/perf/builtin-record.c

+13 −2

Original line number	Diff line number	Diff line
		@@ -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;
		}