linux-kernel - Re: [PATCH 3/3] perf tests: Add is_printable

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Date:	Mon, 18 Jul 2016 14:14:09 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Jiri Pirko <jiri@...lanox.com>
Cc:	Jiri Olsa <jolsa@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	lkml <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"Steven Rostedt (Red Hat)" <rostedt@...dmis.org>
Subject: Re: [PATCH 3/3] perf tests: Add is_printable_array test

On Mon, Jul 18, 2016 at 01:46:02PM +0200, Jiri Pirko wrote:

SNIP

> >diff --git a/tools/perf/tests/is_printable_array.c b/tools/perf/tests/is_printable_array.c
> >new file mode 100644
> >index 000000000000..42e13393e502
> >--- /dev/null
> >+++ b/tools/perf/tests/is_printable_array.c
> >@@ -0,0 +1,36 @@
> >+#include <linux/compiler.h>
> >+#include "tests.h"
> >+#include "debug.h"
> >+#include "util.h"
> >+
> >+int test__is_printable_array(int subtest __maybe_unused)
> >+{
> >+	char buf1[] = { 'k', 'r', 4, 'v', 'a', 0 };
> >+	char buf2[] = { 'k', 'r', 'a', 'v', 4, 0 };
> >+	struct {
> >+		char		*buf;
> >+		unsigned int	 len;
> >+		int		 ret;
> >+	} t[] = {
> >+		{ (char *) "krava",	sizeof("krava"),	1 },
> >+		{ (char *) "krava",	sizeof("krava") - 1,	0 },
> 
> "a cow" ? Really? :))

yea, trying to force it as 'perf animal' instead of that pony stuff ;-)

http://www.brendangregg.com/blog/2015-07-08/choosing-a-linux-tracer.html

jirka