linux-kernel - [PATCH 19/34] perf kbuild: remove legacy backtrace-related build variable

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Message-Id: <1400018609-20486-20-git-send-email-alexis.berlemont@gmail.com>
Date:	Wed, 14 May 2014 00:03:14 +0200
From:	Alexis Berlemont <alexis.berlemont@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Alexis Berlemont <alexis.berlemont@...il.com>, jolsa@...hat.com,
	acme@...stprotocols.net, dsahern@...il.com, mingo@...nel.org
Subject: [PATCH 19/34] perf kbuild: remove legacy backtrace-related build variable

Remove HAVE_BACKTRACE_SUPPORT (replaced by CONFIG_BACKTRACE)
---
 tools/perf/Kconfig         | 1 -
 tools/perf/config/Makefile | 6 +++---
 tools/perf/util/util.c     | 5 +++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/tools/perf/Kconfig b/tools/perf/Kconfig
index 34a8b09..fad1c48 100644
--- a/tools/perf/Kconfig
+++ b/tools/perf/Kconfig
@@ -244,7 +244,6 @@ config LIBUNWIND_DIR
         ---help---
 	  libunwind directory
 
-
 config NUMA
 	bool "Numa support (bench)"
 	default n
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index c128f30..4a21452 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -572,9 +572,9 @@ ifdef CONFIG_ON_EXIT
   endif
 endif
 
-ifndef NO_BACKTRACE
-  ifeq ($(feature-backtrace), 1)
-    CFLAGS += -DHAVE_BACKTRACE_SUPPORT
+ifdef CONFIG_BACKTRACE
+  ifneq ($(feature-backtrace), 1)
+    $(shell $(KCONFIG_SCRIPT) -d CONFIG_BACKTRACE)
   endif
 endif
 
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 9f66549..6b5db6d 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -1,8 +1,9 @@
+#include "generated/autoconf.h"
 #include "../perf.h"
 #include "util.h"
 #include <api/fs/fs.h>
 #include <sys/mman.h>
-#ifdef HAVE_BACKTRACE_SUPPORT
+#ifdef CONFIG_BACKTRACE
 #include <execinfo.h>
 #endif
 #include <stdio.h>
@@ -237,7 +238,7 @@ int hex2u64(const char *ptr, u64 *long_val)
 }
 
 /* Obtain a backtrace and print it to stdout. */
-#ifdef HAVE_BACKTRACE_SUPPORT
+#ifdef CONFIG_BACKTRACE
 void dump_stack(void)
 {
 	void *array[16];
-- 
1.9.2

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