[RESEND PATCH v2 1/2] selftests/ftrace: Replace echo -e with printf

From: Juerg Haefliger
Date: Fri Feb 22 2019 - 15:53:31 EST


echo -e is not POSIX. Depending on what /bin/sh is, we can get
incorrect output like:
$ -e -n [1] Basic trace file check
$ -e [PASS]

Fix that by using printf instead.

Acked-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
Acked-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Signed-off-by: Juerg Haefliger <juergh@xxxxxxxxxxxxx>
---
tools/testing/selftests/ftrace/ftracetest | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest
index fc755e1b50f1..20c9c0ad8682 100755
--- a/tools/testing/selftests/ftrace/ftracetest
+++ b/tools/testing/selftests/ftrace/ftracetest
@@ -173,8 +173,13 @@ strip_esc() {
}

prlog() { # messages
- echo -e "$@"
- [ "$LOG_FILE" ] && echo -e "$@" | strip_esc >> $LOG_FILE
+ newline="\n"
+ if [ "$1" = "-n" ] ; then
+ newline=
+ shift
+ fi
+ printf "$*$newline"
+ [ "$LOG_FILE" ] && printf "$*$newline" | strip_esc >> $LOG_FILE
}
catlog() { #file
cat $1
--
2.19.1