perf report: Create a symbol_conf flag for showing branch flag counting

Create a new flag show_branchflag_count in symbol_conf. The flag is used
to control if showing the branch flag counting information. The flag
depends on if the perf.data has branch data and if user chooses the
"branch-history" option in perf report command line.

Signed-off-by: Yao Jin <yao.jin@linux.intel.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Linux-kernel@vger.kernel.org
Cc: Yao Jin <yao.jin@linux.intel.com>
Link: http://lkml.kernel.org/r/1477876794-30749-3-git-send-email-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 8064de8..3dfbfff 100644 (file)
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -911,6 +911,9 @@ repeat:
        if (itrace_synth_opts.last_branch)
                has_br_stack = true;
 
+       if (has_br_stack && branch_call_mode)
+               symbol_conf.show_branchflag_count = true;
+
        /*
         * Branch mode is a tristate:
         * -1 means default, so decide based on the file having branch data.

diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index d964844..2d0a905 100644 (file)
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -100,6 +100,7 @@ struct symbol_conf {
                        show_total_period,
                        use_callchain,
                        cumulate_callchain,
+                       show_branchflag_count,
                        exclude_other,
                        show_cpu_utilization,
                        initialized,