1 files changed, 47 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc
new file mode 100644
index 000000000..25b7708eb
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc
@@ -0,0 +1,47 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kprobes event arguments with types
+# requires: kprobe_events "x8/16/32/64":README
+
+gen_event() { # Bitsize
+  echo "p:testprobe $FUNCTION_FORK \$stack0:s$1 \$stack0:u$1 \$stack0:x$1 \$stack0:b4@4/$1"
+}
+
+check_types() { # s-type u-type x-type bf-type width
+  test $# -eq 5
+  CW=$5
+  CW=$((CW / 4))
+  X1=`printf "%x" $1 | tail -c ${CW}`
+  X2=`printf "%x" $2`
+  X3=`printf "%x" $3`
+  test $X1 = $X2
+  test $X2 = $X3
+  test 0x$X3 = $3
+
+  B4=`printf "%1x" $4`
+  B3=`printf "%03x" 0x$X3 | tail -c 2 | head -c 1`
+  test $B3 = $B4
+}
+
+for width in 64 32 16 8; do
+  : "Add new event with basic types"
+  gen_event $width > kprobe_events
+  grep testprobe kprobe_events
+  test -d events/kprobes/testprobe
+
+  : "Trace the event"
+  echo 1 > events/kprobes/testprobe/enable
+  ( echo "forked")
+  echo 0 > events/kprobes/testprobe/enable
+
+  : "Confirm the arguments is recorded in given types correctly"
+  ARGS=`grep "testprobe" trace | head -n 1 | sed -e 's/.* arg1=\(.*\) arg2=\(.*\) arg3=\(.*\) arg4=\(.*\)/\1 \2 \3 \4/'`
+  check_types $ARGS $width
+
+  : "Clear event for next loop"
+  echo "-:testprobe" >> kprobe_events
+  clear_trace
+
+done
+
+exit_pass