tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: Kprobe event auto/manual naming
   4
   5 [ -f kprobe_events ] || exit_unsupported # this is configurable
   6
   7 disable_events
   8 echo > kprobe_events
   9
  10 :;: "Add an event on function without name" ;:
  11
  12 FUNC=`grep " [tT] .*vfs_read$" /proc/kallsyms | tail -n 1 | cut -f 3 -d " "`
  13 [ "x" != "x$FUNC" ] || exit_unresolved
  14 echo "p $FUNC" > kprobe_events
  15 PROBE_NAME=`echo $FUNC | tr ".:" "_"`
  16 test -d events/kprobes/p_${PROBE_NAME}_0 || exit_failure
  17
  18 :;: "Add an event on function with new name" ;:
  19
  20 echo "p:event1 $FUNC" > kprobe_events
  21 test -d events/kprobes/event1 || exit_failure
  22
  23 :;: "Add an event on function with new name and group" ;:
  24
  25 echo "p:kprobes2/event2 $FUNC" > kprobe_events
  26 test -d events/kprobes2/event2 || exit_failure
  27
  28 :;: "Add an event on dot function without name" ;:
  29
  30 FUNC=`grep -m 10 " [tT] .*\.isra\..*$" /proc/kallsyms | tail -n 1 | cut -f 3 -d " "`
  31 [ "x" != "x$FUNC" ] || exit_unresolved
  32 echo "p $FUNC" > kprobe_events
  33 EVENT=`grep $FUNC kprobe_events | cut -f 1 -d " " | cut -f 2 -d:`
  34 [ "x" != "x$EVENT" ] || exit_failure
  35 test -d events/$EVENT || exit_failure
  36
  37 echo > kprobe_events