ftracetest: Initial commit for ftracetest

ftracetest is a collection of testcase shell-scripts for ftrace.
To avoid regressions of ftrace, these testcases check correct
ftrace behaviors. If someone would like to add any features on
ftrace, the patch series should have at least one testcase for
checking the new behavior.

Link: http://lkml.kernel.org/p/20140922234250.23415.68758.stgit@kbuild-f20.novalocal

Acked-by: Shuah Khan <shuahkh@osg.samsung.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 159 insertions, 0 deletions

diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest
new file mode 100755
index 000000000000..4c6c2fad2cda
--- /dev/null
+++ b/tools/testing/selftests/ftrace/ftracetest
@@ -0,0 +1,159 @@
+#!/bin/sh
+
+# ftracetest - Ftrace test shell scripts
+#
+# Copyright (C) Hitachi Ltd., 2014
+#  Written by Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
+#
+# Released under the terms of the GPL v2.
+
+usage() { # errno [message]
+[ "$2" ] && echo $2
+echo "Usage: ftracetest [options] [testcase(s)] [testcase-directory(s)]"
+echo " Options:"
+echo "		-h|--help  Show help message"
+echo "		-k|--keep  Keep passed test logs"
+echo "		-d|--debug Debug mode (trace all shell commands)"
+exit $1
+}
+
+errexit() { # message
+  echo "Error: $1" 1>&2
+  exit 1
+}
+
+# Ensuring user privilege
+if [ `id -u` -ne 0 ]; then
+  errexit "this must be run by root user"
+fi
+
+# Utilities
+absdir() { # file_path
+  (cd `dirname $1`; pwd)
+}
+
+abspath() {
+  echo `absdir $1`/`basename $1`
+}
+
+find_testcases() { #directory
+  echo `find $1 -name \*.tc`
+}
+
+parse_opts() { # opts
+  local OPT_TEST_CASES=
+  local OPT_TEST_DIR=
+
+  while [ "$1" ]; do
+    case "$1" in
+    --help|-h)
+      usage 0
+    ;;
+    --keep|-k)
+      KEEP_LOG=1
+      shift 1
+    ;;
+    --debug|-d)
+      DEBUG=1
+      shift 1
+    ;;
+    *.tc)
+      if [ -f "$1" ]; then
+        OPT_TEST_CASES="$OPT_TEST_CASES `abspath $1`"
+        shift 1
+      else
+        usage 1 "$1 is not a testcase"
+      fi
+      ;;
+    *)
+      if [ -d "$1" ]; then
+        OPT_TEST_DIR=`abspath $1`
+        OPT_TEST_CASES="$OPT_TEST_CASES `find_testcases $OPT_TEST_DIR`"
+        shift 1
+      else
+        usage 1 "Invalid option ($1)"
+      fi
+    ;;
+    esac
+  done
+  if [ "$OPT_TEST_CASES" ]; then
+    TEST_CASES=$OPT_TEST_CASES
+  fi
+}
+
+# Parameters
+DEBUGFS_DIR=`grep debugfs /proc/mounts | cut -f2 -d' '`
+TRACING_DIR=$DEBUGFS_DIR/tracing
+TOP_DIR=`absdir $0`
+TEST_DIR=$TOP_DIR/test.d
+TEST_CASES=`find_testcases $TEST_DIR`
+LOG_DIR=$TOP_DIR/logs/`date +%Y%m%d-%H%M%S`/
+KEEP_LOG=0
+DEBUG=0
+# Parse command-line options
+parse_opts $*
+
+[ $DEBUG -ne 0 ] && set -x
+
+# Verify parameters
+if [ -z "$DEBUGFS_DIR" -o ! -d "$TRACING_DIR" ]; then
+  errexit "No ftrace directory found"
+fi
+
+# Preparing logs
+LOG_FILE=$LOG_DIR/ftracetest.log
+mkdir -p $LOG_DIR || errexit "Failed to make a log directory: $LOG_DIR"
+date > $LOG_FILE
+prlog() { # messages
+  echo "$@" | tee -a $LOG_FILE
+}
+catlog() { #file
+  cat $1 | tee -a $LOG_FILE
+}
+prlog "=== Ftrace unit tests ==="
+
+
+# Testcase management
+PASSED_CASES=
+FAILED_CASES=
+CASENO=0
+testcase() { # testfile
+  CASENO=$((CASENO+1))
+  prlog -n "[$CASENO]"`grep "^#[ \t]*description:" $1 | cut -f2 -d:`
+}
+failed() {
+  prlog "	[FAIL]"
+  FAILED_CASES="$FAILED_CASES $CASENO"
+}
+passed() {
+  prlog "	[PASS]"
+  PASSED_CASES="$PASSED_CASES $CASENO"
+}
+
+
+# Run one test case
+run_test() { # testfile
+  local testname=`basename $1`
+  local testlog=`mktemp --tmpdir=$LOG_DIR ${testname}-XXXXXX.log`
+  testcase $1
+  echo "execute: "$1 > $testlog
+  (cd $TRACING_DIR; set -x ; . $1) >> $testlog 2>&1
+  ret=$?
+  if [ $ret -ne 0 ]; then
+    failed
+    catlog $testlog
+  else
+    passed
+    [ $KEEP_LOG -eq 0 ] && rm $testlog
+  fi
+}
+
+# Main loop
+for t in $TEST_CASES; do
+  run_test $t
+done
+prlog ""
+prlog "# of passed: " `echo $PASSED_CASES | wc -w`
+prlog "# of failed: " `echo $FAILED_CASES | wc -w`
+
+test -z "$FAILED_CASES" # if no error, return 0