From 6532125fcb60985ffee888eab108bcb49197fecd Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Tue, 2 Oct 2012 01:32:51 +0900
Subject: [PATCH] --- yaml --- r: 333956 b: refs/heads/master c:
 4e34d9588b46f44a4dba718606913133f15e4b21 h: refs/heads/master v: v3

---
 [refs]                       |  2 +-
 trunk/tools/perf/Makefile    | 10 +++++-----
 trunk/tools/perf/util/util.c |  4 ++--
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/[refs] b/[refs]
index 83a74cd84cac..5849a0b1697a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4d8061faca7a50010f037374410f0c3647c3ecf8
+refs/heads/master: 4e34d9588b46f44a4dba718606913133f15e4b21
diff --git a/trunk/tools/perf/Makefile b/trunk/tools/perf/Makefile
index 5216ade909d0..f9126f89efef 100644
--- a/trunk/tools/perf/Makefile
+++ b/trunk/tools/perf/Makefile
@@ -45,6 +45,8 @@ include config/utilities.mak
 #
 # Define NO_LIBUNWIND if you do not want libunwind dependency for dwarf
 # backtrace post unwind.
+#
+# Define NO_BACKTRACE if you do not want stack backtrace debug feature
 
 $(OUTPUT)PERF-VERSION-FILE: .FORCE-PERF-VERSION-FILE
 	@$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT)
@@ -749,11 +751,9 @@ ifndef NO_STRLCPY
 	endif
 endif
 
-ifdef NO_BACKTRACE
-       BASIC_CFLAGS += -DNO_BACKTRACE
-else
-       ifneq ($(call try-cc,$(SOURCE_BACKTRACE),),y)
-               BASIC_CFLAGS += -DNO_BACKTRACE
+ifndef NO_BACKTRACE
+       ifeq ($(call try-cc,$(SOURCE_BACKTRACE),),y)
+               BASIC_CFLAGS += -DBACKTRACE_SUPPORT
        endif
 endif
 
diff --git a/trunk/tools/perf/util/util.c b/trunk/tools/perf/util/util.c
index 2055cf38041c..99664598bc1a 100644
--- a/trunk/tools/perf/util/util.c
+++ b/trunk/tools/perf/util/util.c
@@ -1,7 +1,7 @@
 #include "../perf.h"
 #include "util.h"
 #include <sys/mman.h>
-#ifndef NO_BACKTRACE
+#ifdef BACKTRACE_SUPPORT
 #include <execinfo.h>
 #endif
 #include <stdio.h>
@@ -165,7 +165,7 @@ size_t hex_width(u64 v)
 }
 
 /* Obtain a backtrace and print it to stdout. */
-#ifndef NO_BACKTRACE
+#ifdef BACKTRACE_SUPPORT
 void dump_stack(void)
 {
 	void *array[16];