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-rw-r--r--tools/perf/Makefile10
-rw-r--r--tools/perf/util/util.c4
2 files changed, 7 insertions, 7 deletions
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 5216ade909d0..f9126f89efef 100644
--- a/tools/perf/Makefile
+++ b/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/tools/perf/util/util.c b/tools/perf/util/util.c
index 2055cf38041c..99664598bc1a 100644
--- a/tools/perf/util/util.c
+++ b/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];