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2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 
 kernel/tools/testing/selftests/ftrace/ftracetest
....@@ -1,11 +1,11 @@
11 #!/bin/sh
2
+# SPDX-License-Identifier: GPL-2.0-only
23 
34 # ftracetest - Ftrace test shell scripts
45 #
56 # Copyright (C) Hitachi Ltd., 2014
67 #  Written by Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
78 #
8
-# Released under the terms of the GPL v2.
99 
1010 usage() { # errno [message]
1111 [ ! -z "$2" ] && echo $2
....@@ -17,21 +17,53 @@
1717 echo "		-vv        Alias of -v -v (Show all results in stdout)"
1818 echo "		-vvv       Alias of -v -v -v (Show all commands immediately)"
1919 echo "		--fail-unsupported Treat UNSUPPORTED as a failure"
20
+echo "		--fail-unresolved Treat UNRESOLVED as a failure"
2021 echo "		-d|--debug Debug mode (trace all shell commands)"
2122 echo "		-l|--logdir <dir> Save logs on the <dir>"
2223 echo "		            If <dir> is -, all logs output in console only"
2324 exit $1
2425 }
2526 
27
+# default error
28
+err_ret=1
29
+
30
+# kselftest skip code is 4
31
+err_skip=4
32
+
33
+# umount required
34
+UMOUNT_DIR=""
35
+
36
+# cgroup RT scheduling prevents chrt commands from succeeding, which
37
+# induces failures in test wakeup tests.  Disable for the duration of
38
+# the tests.
39
+
40
+readonly sched_rt_runtime=/proc/sys/kernel/sched_rt_runtime_us
41
+
42
+sched_rt_runtime_orig=$(cat $sched_rt_runtime)
43
+
44
+setup() {
45
+  echo -1 > $sched_rt_runtime
46
+}
47
+
48
+cleanup() {
49
+  echo $sched_rt_runtime_orig > $sched_rt_runtime
50
+  if [ -n "${UMOUNT_DIR}" ]; then
51
+    umount ${UMOUNT_DIR} ||:
52
+  fi
53
+}
54
+
2655 errexit() { # message
2756   echo "Error: $1" 1>&2
28
-  exit 1
57
+  cleanup
58
+  exit $err_ret
2959 }
3060 
3161 # Ensuring user privilege
3262 if [ `id -u` -ne 0 ]; then
3363   errexit "this must be run by root user"
3464 fi
65
+
66
+setup
3567 
3668 # Utilities
3769 absdir() { # file_path
....@@ -60,17 +92,35 @@
6092       shift 1
6193     ;;
6294     --verbose|-v|-vv|-vvv)
95
+      if [ $VERBOSE -eq -1 ]; then
96
+	usage "--console can not use with --verbose"
97
+      fi
6398       VERBOSE=$((VERBOSE + 1))
6499       [ $1 = '-vv' ] && VERBOSE=$((VERBOSE + 1))
65100       [ $1 = '-vvv' ] && VERBOSE=$((VERBOSE + 2))
101
+      shift 1
102
+    ;;
103
+    --console)
104
+      if [ $VERBOSE -ne 0 ]; then
105
+	usage "--console can not use with --verbose"
106
+      fi
107
+      VERBOSE=-1
66108       shift 1
67109     ;;
68110     --debug|-d)
69111       DEBUG=1
70112       shift 1
71113     ;;
114
+    --stop-fail)
115
+      STOP_FAILURE=1
116
+      shift 1
117
+    ;;
72118     --fail-unsupported)
73119       UNSUPPORTED_RESULT=1
120
+      shift 1
121
+    ;;
122
+    --fail-unresolved)
123
+      UNRESOLVED_RESULT=1
74124       shift 1
75125     ;;
76126     --logdir|-l)
....@@ -102,11 +152,33 @@
102152 }
103153 
104154 # Parameters
105
-DEBUGFS_DIR=`grep debugfs /proc/mounts | cut -f2 -d' ' | head -1`
106
-if [ -z "$DEBUGFS_DIR" ]; then
107
-    TRACING_DIR=`grep tracefs /proc/mounts | cut -f2 -d' ' | head -1`
108
-else
109
-    TRACING_DIR=$DEBUGFS_DIR/tracing
155
+TRACING_DIR=`grep tracefs /proc/mounts | cut -f2 -d' ' | head -1`
156
+if [ -z "$TRACING_DIR" ]; then
157
+    DEBUGFS_DIR=`grep debugfs /proc/mounts | cut -f2 -d' ' | head -1`
158
+    if [ -z "$DEBUGFS_DIR" ]; then
159
+	# If tracefs exists, then so does /sys/kernel/tracing
160
+	if [ -d "/sys/kernel/tracing" ]; then
161
+	    mount -t tracefs nodev /sys/kernel/tracing ||
162
+	      errexit "Failed to mount /sys/kernel/tracing"
163
+	    TRACING_DIR="/sys/kernel/tracing"
164
+	    UMOUNT_DIR=${TRACING_DIR}
165
+	# If debugfs exists, then so does /sys/kernel/debug
166
+	elif [ -d "/sys/kernel/debug" ]; then
167
+	    mount -t debugfs nodev /sys/kernel/debug ||
168
+	      errexit "Failed to mount /sys/kernel/debug"
169
+	    TRACING_DIR="/sys/kernel/debug/tracing"
170
+	    UMOUNT_DIR=${TRACING_DIR}
171
+	else
172
+	    err_ret=$err_skip
173
+	    errexit "debugfs and tracefs are not configured in this kernel"
174
+	fi
175
+    else
176
+	TRACING_DIR="$DEBUGFS_DIR/tracing"
177
+    fi
178
+fi
179
+if [ ! -d "$TRACING_DIR" ]; then
180
+    err_ret=$err_skip
181
+    errexit "ftrace is not configured in this kernel"
110182 fi
111183 
112184 TOP_DIR=`absdir $0`
....@@ -117,6 +189,8 @@
117189 DEBUG=0
118190 VERBOSE=0
119191 UNSUPPORTED_RESULT=0
192
+UNRESOLVED_RESULT=0
193
+STOP_FAILURE=0
120194 # Parse command-line options
121195 parse_opts $*
122196 
....@@ -137,11 +211,38 @@
137211   date > $LOG_FILE
138212 fi
139213 
214
+# Define text colors
215
+# Check available colors on the terminal, if any
216
+ncolors=`tput colors 2>/dev/null || echo 0`
217
+color_reset=
218
+color_red=
219
+color_green=
220
+color_blue=
221
+# If stdout exists and number of colors is eight or more, use them
222
+if [ -t 1 -a "$ncolors" -ge 8 ]; then
223
+  color_reset="\033[0m"
224
+  color_red="\033[31m"
225
+  color_green="\033[32m"
226
+  color_blue="\033[34m"
227
+fi
228
+
229
+strip_esc() {
230
+  # busybox sed implementation doesn't accept "\x1B", so use [:cntrl:] instead.
231
+  sed -E "s/[[:cntrl:]]\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g"
232
+}
233
+
140234 prlog() { # messages
141
-  [ -z "$LOG_FILE" ] && echo "$@" || echo "$@" | tee -a $LOG_FILE
235
+  newline="\n"
236
+  if [ "$1" = "-n" ] ; then
237
+    newline=
238
+    shift
239
+  fi
240
+  printf "$*$newline"
241
+  [ "$LOG_FILE" ] && printf "$*$newline" | strip_esc >> $LOG_FILE
142242 }
143243 catlog() { #file
144
-  [ -z "$LOG_FILE" ] && cat $1 || cat $1 | tee -a $LOG_FILE
244
+  cat $1
245
+  [ "$LOG_FILE" ] && cat $1 | strip_esc >> $LOG_FILE
145246 }
146247 prlog "=== Ftrace unit tests ==="
147248 
....@@ -167,10 +268,17 @@
167268 
168269 INSTANCE=
169270 CASENO=0
271
+
170272 testcase() { # testfile
171273   CASENO=$((CASENO+1))
172
-  desc=`grep "^#[ \t]*description:" $1 | cut -f2 -d:`
274
+  desc=`grep "^#[ \t]*description:" $1 | cut -f2- -d:`
173275   prlog -n "[$CASENO]$INSTANCE$desc"
276
+}
277
+
278
+checkreq() { # testfile
279
+  requires=`grep "^#[ \t]*requires:" $1 | cut -f2- -d:`
280
+  # Use eval to pass quoted-patterns correctly.
281
+  eval check_requires "$requires"
174282 }
175283 
176284 test_on_instance() { # testfile
....@@ -180,37 +288,37 @@
180288 eval_result() { # sigval
181289   case $1 in
182290     $PASS)
183
-      prlog "	[PASS]"
291
+      prlog "	[${color_green}PASS${color_reset}]"
184292       PASSED_CASES="$PASSED_CASES $CASENO"
185293       return 0
186294     ;;
187295     $FAIL)
188
-      prlog "	[FAIL]"
296
+      prlog "	[${color_red}FAIL${color_reset}]"
189297       FAILED_CASES="$FAILED_CASES $CASENO"
190298       return 1 # this is a bug.
191299     ;;
192300     $UNRESOLVED)
193
-      prlog "	[UNRESOLVED]"
301
+      prlog "	[${color_blue}UNRESOLVED${color_reset}]"
194302       UNRESOLVED_CASES="$UNRESOLVED_CASES $CASENO"
195
-      return 1 # this is a kind of bug.. something happened.
303
+      return $UNRESOLVED_RESULT # depends on use case
196304     ;;
197305     $UNTESTED)
198
-      prlog "	[UNTESTED]"
306
+      prlog "	[${color_blue}UNTESTED${color_reset}]"
199307       UNTESTED_CASES="$UNTESTED_CASES $CASENO"
200308       return 0
201309     ;;
202310     $UNSUPPORTED)
203
-      prlog "	[UNSUPPORTED]"
311
+      prlog "	[${color_blue}UNSUPPORTED${color_reset}]"
204312       UNSUPPORTED_CASES="$UNSUPPORTED_CASES $CASENO"
205313       return $UNSUPPORTED_RESULT # depends on use case
206314     ;;
207315     $XFAIL)
208
-      prlog "	[XFAIL]"
316
+      prlog "	[${color_green}XFAIL${color_reset}]"
209317       XFAILED_CASES="$XFAILED_CASES $CASENO"
210318       return 0
211319     ;;
212320     *)
213
-      prlog "	[UNDEFINED]"
321
+      prlog "	[${color_blue}UNDEFINED${color_reset}]"
214322       UNDEFINED_CASES="$UNDEFINED_CASES $CASENO"
215323       return 1 # this must be a test bug
216324     ;;
....@@ -262,23 +370,27 @@
262370 
263371 __run_test() { # testfile
264372   # setup PID and PPID, $$ is not updated.
265
-  (cd $TRACING_DIR; read PID _ < /proc/self/stat; set -e; set -x; initialize_ftrace; . $1)
373
+  (cd $TRACING_DIR; read PID _ < /proc/self/stat; set -e; set -x;
374
+   checkreq $1; initialize_ftrace; . $1)
266375   [ $? -ne 0 ] && kill -s $SIG_FAIL $SIG_PID
267376 }
268377 
269378 # Run one test case
270379 run_test() { # testfile
271380   local testname=`basename $1`
381
+  testcase $1
272382   if [ ! -z "$LOG_FILE" ] ; then
273
-    local testlog=`mktemp $LOG_DIR/${testname}-log.XXXXXX`
383
+    local testlog=`mktemp $LOG_DIR/${CASENO}-${testname}-log.XXXXXX`
274384   else
275385     local testlog=/proc/self/fd/1
276386   fi
277387   export TMPDIR=`mktemp -d /tmp/ftracetest-dir.XXXXXX`
278
-  testcase $1
388
+  export FTRACETEST_ROOT=$TOP_DIR
279389   echo "execute$INSTANCE: "$1 > $testlog
280390   SIG_RESULT=0
281
-  if [ -z "$LOG_FILE" ]; then
391
+  if [ $VERBOSE -eq -1 ]; then
392
+    __run_test $1
393
+  elif [ -z "$LOG_FILE" ]; then
282394     __run_test $1 2>&1
283395   elif [ $VERBOSE -ge 3 ]; then
284396     __run_test $1 | tee -a $testlog 2>&1
....@@ -304,6 +416,10 @@
304416 # Main loop
305417 for t in $TEST_CASES; do
306418   run_test $t
419
+  if [ $STOP_FAILURE -ne 0 -a $TOTAL_RESULT -ne 0 ]; then
420
+    echo "A failure detected. Stop test."
421
+    exit 1
422
+  fi
307423 done
308424 
309425 # Test on instance loop
....@@ -315,7 +431,12 @@
315431   run_test $t
316432   rmdir $TRACING_DIR
317433   TRACING_DIR=$SAVED_TRACING_DIR
434
+  if [ $STOP_FAILURE -ne 0 -a $TOTAL_RESULT -ne 0 ]; then
435
+    echo "A failure detected. Stop test."
436
+    exit 1
437
+  fi
318438 done
439
+(cd $TRACING_DIR; initialize_ftrace) # for cleanup
319440 
320441 prlog ""
321442 prlog "# of passed: " `echo $PASSED_CASES | wc -w`
....@@ -326,5 +447,7 @@
326447 prlog "# of xfailed: " `echo $XFAILED_CASES | wc -w`
327448 prlog "# of undefined(test bug): " `echo $UNDEFINED_CASES | wc -w`
328449 
450
+cleanup
451
+
329452 # if no error, return 0
330453 exit $TOTAL_RESULT