linux-kernel - [PATCH 3/6] perf report: Create a symbol_conf flag for showing branch flag counting

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Message-Id: <1476869153-15424-4-git-send-email-yao.jin@linux.intel.com>
Date:   Wed, 19 Oct 2016 17:25:50 +0800
From:   Jin Yao <yao.jin@...ux.intel.com>
To:     acme@...nel.org, jolsa@...nel.org
Cc:     Linux-kernel@...r.kernel.org, ak@...ux.intel.com,
        kan.liang@...el.com, Jin Yao <yao.jin@...ux.intel.com>
Subject: [PATCH 3/6] 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 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: Jin Yao <yao.jin@...ux.intel.com>
---
 tools/perf/builtin-report.c | 3 +++
 tools/perf/util/symbol.h    | 1 +
 2 files changed, 4 insertions(+)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 6e88460..c406393 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -905,6 +905,9 @@ 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
--- 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,
-- 
2.7.4