linux-kernel - [PATCH 2/2] perf report: Add gcc option '-rdynamic' to define symbol callchain

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Date:	Thu, 28 Apr 2016 22:00:01 +0900
From:	Kyeongmin Cho <korea.drzix@...il.com>
To:	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc:	linux-kernel@...r.kernel.org, Jiri Olsa <jolsa@...hat.com>,
	Wang Nan <wangnan0@...wei.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Kyeongmin Cho <korea.drzix@...il.com>
Subject: [PATCH 2/2] perf report: Add gcc option '-rdynamic' to define symbol callchain_param

As libperf-gtk.so cannot find out undefined symbol 'callchain_param',
'-rdynamic' option is needed to add the symbol to the dynamic symbol
table.

Signed-off-by: Kyeongmin Cho <korea.drzix@...il.com>
---
 tools/perf/Makefile.perf | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 000ea21..a3f8b39 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -344,7 +344,7 @@ $(PERF_IN): prepare FORCE
 	$(Q)$(MAKE) $(build)=perf
 
 $(OUTPUT)perf: $(PERFLIBS) $(PERF_IN) $(LIBTRACEEVENT_DYNAMIC_LIST)
-	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(LIBTRACEEVENT_DYNAMIC_LIST_LDFLAGS) \
+	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) -rdynamic $(LIBTRACEEVENT_DYNAMIC_LIST_LDFLAGS) \
 		$(PERF_IN) $(LIBS) -o $@
 
 $(GTK_IN): fixdep FORCE
-- 
2.5.5