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Message-ID: <20180528212055.21e24c52@vmware.local.home>
Date: Mon, 28 May 2018 21:20:55 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: Masami Hiramatsu <mhiramat@...nel.org>
Cc: linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Thomas Gleixner <tglx@...utronix.de>,
Tom Zanussi <tom.zanussi@...ux.intel.com>,
Clark Williams <williams@...hat.com>,
Karim Yaghmour <karim.yaghmour@...rsys.com>,
Brendan Gregg <bgregg@...flix.com>,
Joel Fernandes <joel@...lfernandes.org>,
Namhyung Kim <namhyung@...nel.org>,
Yann Ylavic <ylavic.dev@...il.com>,
linux-rt-users@...r.kernel.org, Shuah Khan <shuahkhan@...il.com>
Subject: Re: [PATCH v3 13/14] tracing/selftest: Add selftests to test
trace_marker histogram triggers
On Mon, 28 May 2018 01:32:58 +0900
Masami Hiramatsu <mhiramat@...nel.org> wrote:
> Hi Steve,
>
> On Fri, 25 May 2018 17:13:53 -0400
> Steven Rostedt <rostedt@...dmis.org> wrote:
>
> > On Fri, 25 May 2018 17:12:29 -0400
> > Steven Rostedt <rostedt@...dmis.org> wrote:
> >
> >
> > > #!/bin/sh
> >
> > Hmm, I think I need to make this #!/bin/bash
> >
> > > test_trace() {
> > > file=$1
> > > x=$2
> > >
> > > cat $file | while read line; do
> > > if [ "$line" != "${line/\#/}" ]; then
> > > continue
> > > fi
> > > echo "testing $line for >$x<"
> > > if [ "$line" == "${line/>$x</}" ]; then
> >
> > The ${line/>$x</} is unique to bash I believe.
>
> Hmm, could you try to use only posix-shell based test ?
> Since I would like to keep this can run on small
> environment, like busybox, etc.
>
Like something like this?
-- Steve
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-snapshot.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-snapshot.tc
index c6c50a2..3a3c33d 100644
--- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-snapshot.tc
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-snapshot.tc
@@ -41,11 +41,13 @@ test_trace() {
x=$2
cat $file | while read line; do
- if [ "$line" != "${line/\#/}" ]; then
+ comment=`echo $line | sed -e 's/^#//'`
+ if [ "$line" != "$comment" ]; then
continue
fi
echo "testing $line for >$x<"
- if [ "$line" == "${line/>$x</}" ]; then
+ match=`echo $line | sed -e "s/>$x<//"`
+ if [ "$line" == "$match" ]; then
fail "$line does not have >$x< in it"
fi
let x=$x+2
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