linux_kselftest-next-6.15-rc1

Fixes bugs and cleans up code in tracing, ftrace, and user_events tests.
 Adds missing executables to ftrace gitignore.
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Merge tag 'linux_kselftest-next-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull Kselftest updates from Shuah Khan:

 - Fix bugs and clean up code in tracing, ftrace, and user_events tests

 - Add missing executables to ftrace gitignore

* tag 'linux_kselftest-next-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/ftrace: add 'poll' binary to gitignore
  selftests/ftrace: Use readelf to find entry point in uprobe test
  selftests/user_events: Fix failures caused by test code
  selftests/tracing: Allow some more tests to run in instances
  selftests/ftrace: Clean up triggers after setting them
  selftests/tracing: Test only toplevel README file not the instances

tools/testing/selftests/ftrace/.gitignore

@@ -1,2 +1,3 @@
 # SPDX-License-Identifier: GPL-2.0-only
 logs
+poll

tools/testing/selftests/ftrace/test.d/dynevent/add_remove_uprobe.tc

@@ -3,14 +3,18 @@
 # description: Generic dynamic event - add/remove/test uprobe events
 # requires: uprobe_events
 
+if ! which readelf > /dev/null 2>&1 ; then
+  echo "No readelf found. skipped."
+  exit_unresolved
+fi
+
 echo 0 > events/enable
 echo > dynamic_events
 
 REALBIN=`readlink -f /bin/sh`
+ENTRYPOINT=`readelf -h ${REALBIN} | grep Entry | sed -e 's/[^0]*//'`
 
-echo 'cat /proc/$$/maps' | /bin/sh | \
-	grep "r-xp .*${REALBIN}$" | \
-	awk '{printf "p:myevent %s:0x%s\n", $6,$3 }' >> uprobe_events
+echo "p:myevent ${REALBIN}:${ENTRYPOINT}" >> uprobe_events
 
 grep -q myevent uprobe_events
 test -d events/uprobes/myevent

tools/testing/selftests/ftrace/test.d/functions

@@ -156,7 +156,13 @@ check_requires() { # Check required files and tracers
                 exit_unsupported
             fi
         elif [ "$r" != "$i" ]; then
-            if ! grep -Fq "$r" README ; then
+	    # If this is an instance, check the top directory
+	    if echo $TRACING_DIR | grep -q "/instances/"; then
+		test="$TRACING_DIR/../.."
+	    else
+		test=$TRACING_DIR
+	    fi
+            if ! grep -Fq "$r" $test/README ; then
                 echo "Required feature pattern \"$r\" is not in README."
                 exit_unsupported
             fi

tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-action-hist-xfail.tc

@@ -2,6 +2,7 @@
 # SPDX-License-Identifier: GPL-2.0
 # description: event trigger - test inter-event histogram trigger expected fail actions
 # requires: set_event snapshot "snapshot()":README
+# flags: instance
 
 fail() { #msg
     echo $1

tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onchange-action-hist.tc

@@ -2,6 +2,7 @@
 # SPDX-License-Identifier: GPL-2.0
 # description: event trigger - test inter-event histogram trigger onchange action
 # requires: set_event "onchange(var)":README ping:program
+# flags: instance
 
 fail() { #msg
     echo $1
@@ -19,4 +20,6 @@ if ! grep -q "changed:" events/sched/sched_waking/hist; then
     fail "Failed to create onchange action inter-event histogram"
 fi
 
+echo '!hist:keys=comm:newprio=prio:onchange($newprio).save(comm,prio) if comm=="ping"' >> events/sched/sched_waking/trigger
+
 exit 0

tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-snapshot-action-hist.tc

@@ -2,6 +2,7 @@
 # SPDX-License-Identifier: GPL-2.0
 # description: event trigger - test inter-event histogram trigger snapshot action
 # requires: set_event snapshot events/sched/sched_process_fork/hist "onchange(var)":README "snapshot()":README ping:program
+# flags: instance
 
 fail() { #msg
     echo $1
@@ -27,4 +28,6 @@ if ! grep -q "comm=ping" snapshot; then
     fail "Failed to create snapshot action inter-event histogram"
 fi
 
+echo '!hist:keys=comm:newprio=prio:onchange($newprio).save(comm,prio):onchange($newprio).snapshot() if comm=="ping"' >> events/sched/sched_waking/trigger
+
 exit 0

tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-expressions.tc

@@ -2,6 +2,7 @@
 # SPDX-License-Identifier: GPL-2.0
 # description: event trigger - test histogram expression parsing
 # requires: set_event events/sched/sched_process_fork/trigger events/sched/sched_process_fork/hist error_log "<var1>=<field|var_ref|numeric_literal>":README
+# flags: instance
 
 
 fail() { #msg

tools/testing/selftests/user_events/dyn_test.c

@@ -127,6 +127,8 @@ static int parse_abi(int *check, const char *value)
 
 	close(fd);
 
+	wait_for_delete();
+
 	return ret;
 }