perf hists browser: Introduce struct hist_browser title callback
We can now setup title callback for hist_browser, which will be useful
in following changes to create customized hist_browsers.
This also separates struct perf_evsel dependency out of hist_browser
basic code.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1466459899-1166-5-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/ui/browsers/hists.h b/tools/perf/ui/browsers/hists.h
index 57b7764..cf9d049 100644
--- a/tools/perf/ui/browsers/hists.h
+++ b/tools/perf/ui/browsers/hists.h
@@ -18,6 +18,10 @@
u64 nr_non_filtered_entries;
u64 nr_hierarchy_entries;
u64 nr_callchain_rows;
+
+ /* Get title string. */
+ int (*title)(struct hist_browser *browser,
+ char *bf, size_t size);
};
struct hist_browser *hist_browser__new(struct hists *hists,