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Date: Mon, 25 Mar 2024 16:15:50 +0000
From: Mark Brown <broonie@...nel.org>
To: Steven Rostedt <rostedt@...dmis.org>, 
 Masami Hiramatsu <mhiramat@...nel.org>, 
 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, 
 Shuah Khan <shuah@...nel.org>
Cc: Mark Rutland <mark.rutland@....com>, 
 Aishwarya TCV <aishwarya.tcv@....com>, linux-kernel@...r.kernel.org, 
 linux-trace-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org, 
 Mark Brown <broonie@...nel.org>
Subject: [PATCH 1/2] tracing/selftests: Support log output when generating
 KTAP output

When -v is specified ftracetest will dump logs of test execution to the
console which if -K is also specified for KTAP output will result in
output that is not properly KTAP formatted. All that's required for KTAP
formatting is that anything we log have a '#' at the start of the line so
we can improve things by washing the output through a simple read loop.
This will help automated parsers when verbose mode is enabled.

Signed-off-by: Mark Brown <broonie@...nel.org>
---
 tools/testing/selftests/ftrace/ftracetest | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest
index 25d4e0fca385..cce72f8b03dc 100755
--- a/tools/testing/selftests/ftrace/ftracetest
+++ b/tools/testing/selftests/ftrace/ftracetest
@@ -255,7 +255,13 @@ prlog() { # messages
   [ "$LOG_FILE" ] && printf "$*$newline" | strip_esc >> $LOG_FILE
 }
 catlog() { #file
-  cat $1
+  if [ "${KTAP}" = "1" ]; then
+    cat $1 | while read line ; do
+      echo "# $line"
+    done
+  else
+    cat $1
+  fi
   [ "$LOG_FILE" ] && cat $1 | strip_esc >> $LOG_FILE
 }
 prlog "=== Ftrace unit tests ==="

-- 
2.30.2


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