Commit 01675e95 authored by Masami Hiramatsu's avatar Masami Hiramatsu Committed by Shuah Khan (Samsung OSG)
Browse files

selftests/ftrace: Fix kprobe string testcase to not probe notrace function 



Fix kprobe string argument testcase to not probe notrace
function. Instead, it probes tracefs function which must
be available with ftrace.

Signed-off-by: default avatarMasami Hiramatsu <mhiramat@kernel.org>
Acked-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: default avatarShuah Khan (Samsung OSG) <shuah@kernel.org>
parent 9a29ad52

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

+12 −18
Original line number Original line Diff line number Diff line
@@ -9,28 +9,22 @@ echo > kprobe_events 




case `uname -m` in

case `uname -m` in

x86_64)

x86_64)

  ARG2=%si

  ARG1=%di

  OFFS=8

;;

;;

i[3456]86)

i[3456]86)

  ARG2=%cx

  ARG1=%ax

  OFFS=4

;;

;;

aarch64)

aarch64)

  ARG2=%x1

  ARG1=%x0

  OFFS=8

;;

;;

arm*)

arm*)

  ARG2=%r1

  ARG1=%r0

  OFFS=4

;;

;;

ppc64*)

ppc64*)

  ARG2=%r4

  ARG1=%r3

  OFFS=8

;;

;;

ppc*)

ppc*)

  ARG2=%r4

  ARG1=%r3

  OFFS=4

;;

;;

*)

*)

  echo "Please implement other architecture here"

  echo "Please implement other architecture here"
@@ -38,17 +32,17 @@ ppc*) 
esac

esac





: "Test get argument (1)"

: "Test get argument (1)"

echo "p:testprobe create_trace_kprobe arg1=+0(+0(${ARG2})):string" > kprobe_events

echo "p:testprobe tracefs_create_dir arg1=+0(${ARG1}):string" > kprobe_events

echo 1 > events/kprobes/testprobe/enable

echo 1 > events/kprobes/testprobe/enable

! echo test >> kprobe_events

echo "p:test _do_fork" >> kprobe_events

tail -n 1 trace | grep -qe "testprobe.* arg1=\"test\""

grep -qe "testprobe.* arg1=\"test\"" trace





echo 0 > events/kprobes/testprobe/enable

echo 0 > events/kprobes/testprobe/enable

: "Test get argument (2)"

: "Test get argument (2)"

echo "p:testprobe create_trace_kprobe arg1=+0(+0(${ARG2})):string arg2=+0(+${OFFS}(${ARG2})):string" > kprobe_events

echo "p:testprobe tracefs_create_dir arg1=+0(${ARG1}):string arg2=+0(${ARG1}):string" > kprobe_events

echo 1 > events/kprobes/testprobe/enable

echo 1 > events/kprobes/testprobe/enable

! echo test1 test2 >> kprobe_events

echo "p:test _do_fork" >> kprobe_events

tail -n 1 trace | grep -qe "testprobe.* arg1=\"test1\" arg2=\"test2\""

grep -qe "testprobe.* arg1=\"test\" arg2=\"test\"" trace





echo 0 > events/enable

echo 0 > events/enable

echo > kprobe_events
 
echo > kprobe_events

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

+1 −1
Original line number Original line Diff line number Diff line
@@ -4,7 +4,7 @@ 




[ -f kprobe_events ] || exit_unsupported # this is configurable

[ -f kprobe_events ] || exit_unsupported # this is configurable





TARGET_FUNC=create_trace_kprobe

TARGET_FUNC=tracefs_create_dir





dec_addr() { # hexaddr

dec_addr() { # hexaddr

  printf "%d" "0x"`echo $1 | tail -c 8`

  printf "%d" "0x"`echo $1 | tail -c 8`