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

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: Kprobe event string type argument
   4
   5 [ -f kprobe_events ] || exit_unsupported # this is configurable
   6
   7 case `uname -m` in
   8 x86_64)
   9   ARG1=%di
  10 ;;
  11 i[3456]86)
  12   ARG1=%ax
  13 ;;
  14 aarch64)
  15   ARG1=%x0
  16 ;;
  17 arm*)
  18   ARG1=%r0
  19 ;;
  20 ppc64*)
  21   ARG1=%r3
  22 ;;
  23 ppc*)
  24   ARG1=%r3
  25 ;;
  26 *)
  27   echo "Please implement other architecture here"
  28   exit_untested
  29 esac
  30
  31 : "Test get argument (1)"
  32 echo "p:testprobe tracefs_create_dir arg1=+0(${ARG1}):string" > kprobe_events
  33 echo 1 > events/kprobes/testprobe/enable
  34 echo "p:test _do_fork" >> kprobe_events
  35 grep -qe "testprobe.* arg1=\"test\"" trace
  36
  37 echo 0 > events/kprobes/testprobe/enable
  38 : "Test get argument (2)"
  39 echo "p:testprobe tracefs_create_dir arg1=+0(${ARG1}):string arg2=+0(${ARG1}):string" > kprobe_events
  40 echo 1 > events/kprobes/testprobe/enable
  41 echo "p:test _do_fork" >> kprobe_events
  42 grep -qe "testprobe.* arg1=\"test\" arg2=\"test\"" trace
  43