linux-kernel - [PATCH 09/18] perf symbol: Introduce symbol_conf.event

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Message-Id: <1354171126-14387-11-git-send-email-namhyung@kernel.org>
Date:	Thu, 29 Nov 2012 15:38:37 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Jiri Olsa <jolsa@...hat.com>,
	Stephane Eranian <eranian@...gle.com>,
	Andi Kleen <andi@...stfloor.org>,
	Namhyung Kim <namhyung.kim@....com>
Subject: [PATCH 09/18] perf symbol: Introduce symbol_conf.event_group

From: Namhyung Kim <namhyung.kim@....com>

The event_group field is for enabling event group view on perf report
and other commands.  It requires collapsing hist entries since every
member in a group needs to be linked before final output resorting.

Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Stephane Eranian <eranian@...gle.com>
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/util/symbol.c | 4 ++++
 tools/perf/util/symbol.h | 3 ++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 295f8d4feedf..a64b0bf77f32 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -15,6 +15,7 @@
 #include "machine.h"
 #include "symbol.h"
 #include "strlist.h"
+#include "sort.h"
 
 #include <elf.h>
 #include <limits.h>
@@ -1650,6 +1651,9 @@ int symbol__init(void)
 
 	symbol_conf.kptr_restrict = symbol__read_kptr_restrict();
 
+	if (symbol_conf.event_group)
+		sort__need_collapse = 1;
+
 	symbol_conf.initialized = true;
 	return 0;
 
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index de68f98b236d..8bef1452675f 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -96,7 +96,8 @@ struct symbol_conf {
 			initialized,
 			kptr_restrict,
 			annotate_asm_raw,
-			annotate_src;
+			annotate_src,
+			event_group;
 	const char	*vmlinux_name,
 			*kallsyms_name,
 			*source_prefix,
-- 
1.7.11.7

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