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| author | Wang Nan <wangnan0@huawei.com> | 2016-06-27 10:24:05 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-06-28 10:54:54 -0300 |
| commit | ee667f947c926eda1b8d6eccd0894bfbed75b6e3 (patch) | |
| tree | c053b44aed972bba0f81a92da3f308f73b51e846 /tools/perf/builtin-record.c | |
| parent | cb21686b7d37776cfd34793f08d6466ce9091a7d (diff) | |
| download | lwn-ee667f947c926eda1b8d6eccd0894bfbed75b6e3.tar.gz lwn-ee667f947c926eda1b8d6eccd0894bfbed75b6e3.zip | |
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>
Diffstat (limited to 'tools/perf/builtin-record.c')
| -rw-r--r-- | tools/perf/builtin-record.c | 15 |
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; } |