diff options
Diffstat (limited to '')
3 files changed, 57 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_tprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_tprobe.tc index 155792eaeee5..f271c4238b72 100644 --- a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_tprobe.tc +++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_tprobe.tc @@ -6,6 +6,7 @@ echo 0 > events/enable echo > dynamic_events +SUBSYSTEM=kmem TRACEPOINT1=kmem_cache_alloc TRACEPOINT2=kmem_cache_free @@ -24,4 +25,17 @@ grep -q myevent1 dynamic_events echo > dynamic_events +# auto naming check +echo "t $TRACEPOINT1" >> dynamic_events + +test -d events/tracepoints/$TRACEPOINT1 + +echo > dynamic_events + +# SUBSYSTEM is not supported +echo "t $SUBSYSTEM/$TRACEPOINT1" >> dynamic_events && exit_fail ||: +echo "t $SUBSYSTEM:$TRACEPOINT1" >> dynamic_events && exit_fail ||: +echo "t:myevent3 $SUBSYSTEM/$TRACEPOINT1" >> dynamic_events && exit_fail ||: +echo "t:myevent3 $SUBSYSTEM:$TRACEPOINT1" >> dynamic_events && exit_fail ||: + clear_trace diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/dynevent_limitations.tc b/tools/testing/selftests/ftrace/test.d/dynevent/dynevent_limitations.tc new file mode 100644 index 000000000000..6b94b678741a --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/dynevent/dynevent_limitations.tc @@ -0,0 +1,42 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Checking dynamic events limitations +# requires: dynamic_events "imm-value":README + +# Max arguments limitation +MAX_ARGS=128 +EXCEED_ARGS=$((MAX_ARGS + 1)) + +check_max_args() { # event_header + TEST_STRING=$1 + # Acceptable + for i in `seq 1 $MAX_ARGS`; do + TEST_STRING="$TEST_STRING \\$i" + done + echo "$TEST_STRING" >> dynamic_events + echo > dynamic_events + # Error + TEST_STRING="$TEST_STRING \\$EXCEED_ARGS" + ! echo "$TEST_STRING" >> dynamic_events + return 0 +} + +# Kprobe max args limitation +if grep -q "kprobe_events" README; then + check_max_args "p vfs_read" +fi + +# Fprobe max args limitation +if grep -q "f[:[<group>/][<event>]] <func-name>[%return] [<args>]" README; then + check_max_args "f vfs_read" +fi + +# Tprobe max args limitation +if grep -q "t[:[<group>/][<event>]] <tracepoint> [<args>]" README; then + check_max_args "t kfree" +fi + +# Uprobe max args limitation +if grep -q "uprobe_events" README; then + check_max_args "p /bin/sh:10" +fi diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_syntax_errors.tc b/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_syntax_errors.tc index c9425a34fae3..fee479295e2f 100644 --- a/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_syntax_errors.tc +++ b/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_syntax_errors.tc @@ -27,6 +27,7 @@ check_error 'f:^foo.1/bar vfs_read' # BAD_GROUP_NAME check_error 'f:^ vfs_read' # NO_EVENT_NAME check_error 'f:foo/^12345678901234567890123456789012345678901234567890123456789012345 vfs_read' # EVENT_TOO_LONG check_error 'f:foo/^bar.1 vfs_read' # BAD_EVENT_NAME +check_error 't kmem^/kfree' # BAD_TP_NAME check_error 'f vfs_read ^$stack10000' # BAD_STACK_NUM |