diff options
Diffstat (limited to 'tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc')
-rw-r--r-- | tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc | 47 |
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 |