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2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f 
 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 +17,47 @@
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 $1
2425 }
2526 
27
+# default error
28
+err_ret=1
29
+
30
+# kselftest skip code is 4
31
+err_skip=4
32
+
33
+# cgroup RT scheduling prevents chrt commands from succeeding, which
34
+# induces failures in test wakeup tests.  Disable for the duration of
35
+# the tests.
36
+
37
+readonly sched_rt_runtime=/proc/sys/kernel/sched_rt_runtime_us
38
+
39
+sched_rt_runtime_orig=$(cat $sched_rt_runtime)
40
+
41
+setup() {
42
+  echo -1 > $sched_rt_runtime
43
+}
44
+
45
+cleanup() {
46
+  echo $sched_rt_runtime_orig > $sched_rt_runtime
47
+}
48
+
2649 errexit() { # message
2750   echo "Error: $1" 1>&2
28
-  exit 1
51
+  cleanup
52
+  exit $err_ret
2953 }
3054 
3155 # Ensuring user privilege
3256 if [ `id -u` -ne 0 ]; then
3357   errexit "this must be run by root user"
3458 fi
59
+
60
+setup
3561 
3662 # Utilities
3763 absdir() { # file_path
....@@ -60,17 +86,35 @@
6086       shift 1
6187     ;;
6288     --verbose|-v|-vv|-vvv)
89
+      if [ $VERBOSE -eq -1 ]; then
90
+	usage "--console can not use with --verbose"
91
+      fi
6392       VERBOSE=$((VERBOSE + 1))
6493       [ $1 = '-vv' ] && VERBOSE=$((VERBOSE + 1))
6594       [ $1 = '-vvv' ] && VERBOSE=$((VERBOSE + 2))
95
+      shift 1
96
+    ;;
97
+    --console)
98
+      if [ $VERBOSE -ne 0 ]; then
99
+	usage "--console can not use with --verbose"
100
+      fi
101
+      VERBOSE=-1
66102       shift 1
67103     ;;
68104     --debug|-d)
69105       DEBUG=1
70106       shift 1
71107     ;;
108
+    --stop-fail)
109
+      STOP_FAILURE=1
110
+      shift 1
111
+    ;;
72112     --fail-unsupported)
73113       UNSUPPORTED_RESULT=1
114
+      shift 1
115
+    ;;
116
+    --fail-unresolved)
117
+      UNRESOLVED_RESULT=1
74118       shift 1
75119     ;;
76120     --logdir|-l)
....@@ -102,11 +146,31 @@
102146 }
103147 
104148 # Parameters
105
-DEBUGFS_DIR=`grep debugfs /proc/mounts | cut -f2 -d' ' | head -1`
106
-if [ -z "$DEBUGFS_DIR" ]; then
107
-    TRACING_DIR=`grep tracefs /proc/mounts | cut -f2 -d' ' | head -1`
108
-else
109
-    TRACING_DIR=$DEBUGFS_DIR/tracing
149
+TRACING_DIR=`grep tracefs /proc/mounts | cut -f2 -d' ' | head -1`
150
+if [ -z "$TRACING_DIR" ]; then
151
+    DEBUGFS_DIR=`grep debugfs /proc/mounts | cut -f2 -d' ' | head -1`
152
+    if [ -z "$DEBUGFS_DIR" ]; then
153
+	# If tracefs exists, then so does /sys/kernel/tracing
154
+	if [ -d "/sys/kernel/tracing" ]; then
155
+	    mount -t tracefs nodev /sys/kernel/tracing ||
156
+	      errexit "Failed to mount /sys/kernel/tracing"
157
+	    TRACING_DIR="/sys/kernel/tracing"
158
+	# If debugfs exists, then so does /sys/kernel/debug
159
+	elif [ -d "/sys/kernel/debug" ]; then
160
+	    mount -t debugfs nodev /sys/kernel/debug ||
161
+	      errexit "Failed to mount /sys/kernel/debug"
162
+	    TRACING_DIR="/sys/kernel/debug/tracing"
163
+	else
164
+	    err_ret=$err_skip
165
+	    errexit "debugfs and tracefs are not configured in this kernel"
166
+	fi
167
+    else
168
+	TRACING_DIR="$DEBUGFS_DIR/tracing"
169
+    fi
170
+fi
171
+if [ ! -d "$TRACING_DIR" ]; then
172
+    err_ret=$err_skip
173
+    errexit "ftrace is not configured in this kernel"
110174 fi
111175 
112176 TOP_DIR=`absdir $0`
....@@ -117,6 +181,8 @@
117181 DEBUG=0
118182 VERBOSE=0
119183 UNSUPPORTED_RESULT=0
184
+UNRESOLVED_RESULT=0
185
+STOP_FAILURE=0
120186 # Parse command-line options
121187 parse_opts $*
122188 
....@@ -137,11 +203,38 @@
137203   date > $LOG_FILE
138204 fi
139205 
206
+# Define text colors
207
+# Check available colors on the terminal, if any
208
+ncolors=`tput colors 2>/dev/null || echo 0`
209
+color_reset=
210
+color_red=
211
+color_green=
212
+color_blue=
213
+# If stdout exists and number of colors is eight or more, use them
214
+if [ -t 1 -a "$ncolors" -ge 8 ]; then
215
+  color_reset="\033[0m"
216
+  color_red="\033[31m"
217
+  color_green="\033[32m"
218
+  color_blue="\033[34m"
219
+fi
220
+
221
+strip_esc() {
222
+  # busybox sed implementation doesn't accept "\x1B", so use [:cntrl:] instead.
223
+  sed -E "s/[[:cntrl:]]\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g"
224
+}
225
+
140226 prlog() { # messages
141
-  [ -z "$LOG_FILE" ] && echo "$@" || echo "$@" | tee -a $LOG_FILE
227
+  newline="\n"
228
+  if [ "$1" = "-n" ] ; then
229
+    newline=
230
+    shift
231
+  fi
232
+  printf "$*$newline"
233
+  [ "$LOG_FILE" ] && printf "$*$newline" | strip_esc >> $LOG_FILE
142234 }
143235 catlog() { #file
144
-  [ -z "$LOG_FILE" ] && cat $1 || cat $1 | tee -a $LOG_FILE
236
+  cat $1
237
+  [ "$LOG_FILE" ] && cat $1 | strip_esc >> $LOG_FILE
145238 }
146239 prlog "=== Ftrace unit tests ==="
147240 
....@@ -167,10 +260,17 @@
167260 
168261 INSTANCE=
169262 CASENO=0
263
+
170264 testcase() { # testfile
171265   CASENO=$((CASENO+1))
172
-  desc=`grep "^#[ \t]*description:" $1 | cut -f2 -d:`
266
+  desc=`grep "^#[ \t]*description:" $1 | cut -f2- -d:`
173267   prlog -n "[$CASENO]$INSTANCE$desc"
268
+}
269
+
270
+checkreq() { # testfile
271
+  requires=`grep "^#[ \t]*requires:" $1 | cut -f2- -d:`
272
+  # Use eval to pass quoted-patterns correctly.
273
+  eval check_requires "$requires"
174274 }
175275 
176276 test_on_instance() { # testfile
....@@ -180,37 +280,37 @@
180280 eval_result() { # sigval
181281   case $1 in
182282     $PASS)
183
-      prlog "	[PASS]"
283
+      prlog "	[${color_green}PASS${color_reset}]"
184284       PASSED_CASES="$PASSED_CASES $CASENO"
185285       return 0
186286     ;;
187287     $FAIL)
188
-      prlog "	[FAIL]"
288
+      prlog "	[${color_red}FAIL${color_reset}]"
189289       FAILED_CASES="$FAILED_CASES $CASENO"
190290       return 1 # this is a bug.
191291     ;;
192292     $UNRESOLVED)
193
-      prlog "	[UNRESOLVED]"
293
+      prlog "	[${color_blue}UNRESOLVED${color_reset}]"
194294       UNRESOLVED_CASES="$UNRESOLVED_CASES $CASENO"
195
-      return 1 # this is a kind of bug.. something happened.
295
+      return $UNRESOLVED_RESULT # depends on use case
196296     ;;
197297     $UNTESTED)
198
-      prlog "	[UNTESTED]"
298
+      prlog "	[${color_blue}UNTESTED${color_reset}]"
199299       UNTESTED_CASES="$UNTESTED_CASES $CASENO"
200300       return 0
201301     ;;
202302     $UNSUPPORTED)
203
-      prlog "	[UNSUPPORTED]"
303
+      prlog "	[${color_blue}UNSUPPORTED${color_reset}]"
204304       UNSUPPORTED_CASES="$UNSUPPORTED_CASES $CASENO"
205305       return $UNSUPPORTED_RESULT # depends on use case
206306     ;;
207307     $XFAIL)
208
-      prlog "	[XFAIL]"
308
+      prlog "	[${color_green}XFAIL${color_reset}]"
209309       XFAILED_CASES="$XFAILED_CASES $CASENO"
210310       return 0
211311     ;;
212312     *)
213
-      prlog "	[UNDEFINED]"
313
+      prlog "	[${color_blue}UNDEFINED${color_reset}]"
214314       UNDEFINED_CASES="$UNDEFINED_CASES $CASENO"
215315       return 1 # this must be a test bug
216316     ;;
....@@ -262,23 +362,27 @@
262362 
263363 __run_test() { # testfile
264364   # setup PID and PPID, $$ is not updated.
265
-  (cd $TRACING_DIR; read PID _ < /proc/self/stat; set -e; set -x; initialize_ftrace; . $1)
365
+  (cd $TRACING_DIR; read PID _ < /proc/self/stat; set -e; set -x;
366
+   checkreq $1; initialize_ftrace; . $1)
266367   [ $? -ne 0 ] && kill -s $SIG_FAIL $SIG_PID
267368 }
268369 
269370 # Run one test case
270371 run_test() { # testfile
271372   local testname=`basename $1`
373
+  testcase $1
272374   if [ ! -z "$LOG_FILE" ] ; then
273
-    local testlog=`mktemp $LOG_DIR/${testname}-log.XXXXXX`
375
+    local testlog=`mktemp $LOG_DIR/${CASENO}-${testname}-log.XXXXXX`
274376   else
275377     local testlog=/proc/self/fd/1
276378   fi
277379   export TMPDIR=`mktemp -d /tmp/ftracetest-dir.XXXXXX`
278
-  testcase $1
380
+  export FTRACETEST_ROOT=$TOP_DIR
279381   echo "execute$INSTANCE: "$1 > $testlog
280382   SIG_RESULT=0
281
-  if [ -z "$LOG_FILE" ]; then
383
+  if [ $VERBOSE -eq -1 ]; then
384
+    __run_test $1
385
+  elif [ -z "$LOG_FILE" ]; then
282386     __run_test $1 2>&1
283387   elif [ $VERBOSE -ge 3 ]; then
284388     __run_test $1 | tee -a $testlog 2>&1
....@@ -304,6 +408,10 @@
304408 # Main loop
305409 for t in $TEST_CASES; do
306410   run_test $t
411
+  if [ $STOP_FAILURE -ne 0 -a $TOTAL_RESULT -ne 0 ]; then
412
+    echo "A failure detected. Stop test."
413
+    exit 1
414
+  fi
307415 done
308416 
309417 # Test on instance loop
....@@ -315,7 +423,12 @@
315423   run_test $t
316424   rmdir $TRACING_DIR
317425   TRACING_DIR=$SAVED_TRACING_DIR
426
+  if [ $STOP_FAILURE -ne 0 -a $TOTAL_RESULT -ne 0 ]; then
427
+    echo "A failure detected. Stop test."
428
+    exit 1
429
+  fi
318430 done
431
+(cd $TRACING_DIR; initialize_ftrace) # for cleanup
319432 
320433 prlog ""
321434 prlog "# of passed: " `echo $PASSED_CASES | wc -w`
....@@ -326,5 +439,7 @@
326439 prlog "# of xfailed: " `echo $XFAILED_CASES | wc -w`
327440 prlog "# of undefined(test bug): " `echo $UNDEFINED_CASES | wc -w`
328441 
442
+cleanup
443
+
329444 # if no error, return 0
330445 exit $TOTAL_RESULT