linux-kernel - [PATCH v3 5/6] perf report: Show branch info in callchain entry for browser mode

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Message-Id: <1477444503-25434-6-git-send-email-yao.jin@linux.intel.com>
Date:   Wed, 26 Oct 2016 09:15:02 +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 v3 5/6] perf report: Show branch info in callchain entry for browser mode

If the branch is 100% predicated then the "predicated" is hide.
Similarly, if there is no branch tsx abort, the "abort" is hide.
There is only cycles shown (cycle is supported on skylake platform,
older platform would be 0).

If no removed loops, the "removed loops" is hide.

Signed-off-by: Jin Yao <yao.jin@...ux.intel.com>
---
 tools/perf/ui/browsers/hists.c | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 7ed6786..d44fdc9 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -738,6 +738,7 @@ static int hist_browser__show_callchain_list(struct hist_browser *browser,
 					     struct callchain_print_arg *arg)
 {
 	char bf[1024], *alloc_str;
+	char buf[64], *alloc_str2;
 	const char *str;
 
 	if (arg->row_offset != 0) {
@@ -746,12 +747,26 @@ static int hist_browser__show_callchain_list(struct hist_browser *browser,
 	}
 
 	alloc_str = NULL;
+	alloc_str2 = NULL;
+
 	str = callchain_list__sym_name(chain, bf, sizeof(bf),
 				       browser->show_dso);
 
-	if (need_percent) {
-		char buf[64];
+	if (symbol_conf.show_branchflag_count) {
+		if (need_percent)
+			callchain_list_counts__printf_value(node, chain, NULL,
+							    buf, sizeof(buf));
+		else
+			callchain_list_counts__printf_value(NULL, chain, NULL,
+							    buf, sizeof(buf));
+
+		if (asprintf(&alloc_str2, "%s%s", str, buf) < 0)
+			str = "Not enough memory!";
+		else
+			str = alloc_str2;
+	}
 
+	if (need_percent) {
 		callchain_node__scnprintf_value(node, buf, sizeof(buf),
 						total);
 
@@ -764,6 +779,7 @@ static int hist_browser__show_callchain_list(struct hist_browser *browser,
 	print(browser, chain, str, offset, row, arg);
 
 	free(alloc_str);
+	free(alloc_str2);
 	return 1;
 }
 
-- 
2.7.4