From: Steven Rostedt <rostedt@goodmis.org>
Date: Mon, 12 May 2008 19:20:55 +0000 (+0200)
Subject: ftrace: remove function tracing from spinlock debug
X-Git-Tag: v2.6.27-rc1~1102^2^2~1^2~68
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=9d0a420b737f72d84fabebf29634d800cbf54538;p=linux-2.6-omap-h63xx.git

ftrace: remove function tracing from spinlock debug

The debug functions in spin_lock debugging pollute the output of the
function tracer. This patch adds the debug files in the lib director
to those that should not be compiled with mcount tracing.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

diff --git a/lib/Makefile b/lib/Makefile
index 6ca9e6ee1e3..d97ad1100b6 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -10,8 +10,9 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \
 
 ifdef CONFIG_FTRACE
 # Do not profile string.o, since it may be used in early boot or vdso
+# Also do not profile any debug utilities
 ORIG_CFLAGS := $(KBUILD_CFLAGS)
-KBUILD_CFLAGS = $(if $(subst string,,$(basename $(notdir $@))), \
+KBUILD_CFLAGS = $(if $(filter-out %debug debug% string%,$(basename $(notdir $@))), \
 	$(ORIG_CFLAGS), \
 	$(subst -pg,,$(ORIG_CFLAGS)))
 endif