perf tools: Librarize trace_event() helper

Librarize trace_event() helper so that perf trace can use it
too. Also clean up the debug.h includes a bit.

It's not good to have it included in perf.h because it doesn't
make it flexible against other headers it may need (headers
that can also depend on perf.h and then create a recursive
header dependency).

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <1250453149-664-1-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/tools/perf/util/color.c b/tools/perf/util/color.c
index e47fdeb..e88bca5 100644
--- a/tools/perf/util/color.c
+++ b/tools/perf/util/color.c
@@ -166,7 +166,7 @@
 	return perf_default_config(var, value, cb);
 }
 
-static int color_vfprintf(FILE *fp, const char *color, const char *fmt,
+static int __color_vfprintf(FILE *fp, const char *color, const char *fmt,
 		va_list args, const char *trail)
 {
 	int r = 0;
@@ -191,6 +191,10 @@
 	return r;
 }
 
+int color_vfprintf(FILE *fp, const char *color, const char *fmt, va_list args)
+{
+	return __color_vfprintf(fp, color, fmt, args, NULL);
+}
 
 
 int color_fprintf(FILE *fp, const char *color, const char *fmt, ...)
@@ -199,7 +203,7 @@
 	int r;
 
 	va_start(args, fmt);
-	r = color_vfprintf(fp, color, fmt, args, NULL);
+	r = color_vfprintf(fp, color, fmt, args);
 	va_end(args);
 	return r;
 }
@@ -209,7 +213,7 @@
 	va_list args;
 	int r;
 	va_start(args, fmt);
-	r = color_vfprintf(fp, color, fmt, args, "\n");
+	r = __color_vfprintf(fp, color, fmt, args, "\n");
 	va_end(args);
 	return r;
 }