diff options
Diffstat (limited to 'tools/testing/selftests/ftrace')
4 files changed, 67 insertions, 2 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions index 1d96c5f7e402..86986c4bba54 100644 --- a/tools/testing/selftests/ftrace/test.d/functions +++ b/tools/testing/selftests/ftrace/test.d/functions @@ -115,7 +115,7 @@ ftrace_errlog_check() { # err-prefix command-with-error-pos-by-^ command-file command=$(echo "$2" | tr -d ^) echo "Test command: $command" echo > error_log - (! echo "$command" > "$3" ) 2> /dev/null + (! echo "$command" >> "$3" ) 2> /dev/null grep "$1: error:" -A 3 error_log N=$(tail -n 1 error_log | wc -c) # " Command: " and "^\n" => 13 diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc index 3fb70e01b1fe..3ff236719b6e 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc @@ -24,7 +24,21 @@ test -d events/kprobes2/event2 || exit_failure :;: "Add an event on dot function without name" ;: -FUNC=`grep -m 10 " [tT] .*\.isra\..*$" /proc/kallsyms | tail -n 1 | cut -f 3 -d " "` +find_dot_func() { + if [ ! -f available_filter_functions ]; then + grep -m 10 " [tT] .*\.isra\..*$" /proc/kallsyms | tail -n 1 | cut -f 3 -d " " + return; + fi + + grep " [tT] .*\.isra\..*" /proc/kallsyms | cut -f 3 -d " " | while read f; do + if grep -s $f available_filter_functions; then + echo $f + break + fi + done +} + +FUNC=`find_dot_func | tail -n 1` [ "x" != "x$FUNC" ] || exit_unresolved echo "p $FUNC" > kprobe_events EVENT=`grep $FUNC kprobe_events | cut -f 1 -d " " | cut -f 2 -d:` diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_multiprobe.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_multiprobe.tc new file mode 100644 index 000000000000..44494bac86d1 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_multiprobe.tc @@ -0,0 +1,35 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Create/delete multiprobe on kprobe event + +[ -f kprobe_events ] || exit_unsupported + +grep -q "Create/append/" README || exit_unsupported + +# Choose 2 symbols for target +SYM1=_do_fork +SYM2=do_exit +EVENT_NAME=kprobes/testevent + +DEF1="p:$EVENT_NAME $SYM1" +DEF2="p:$EVENT_NAME $SYM2" + +:;: "Define an event which has 2 probes" ;: +echo $DEF1 >> kprobe_events +echo $DEF2 >> kprobe_events +cat kprobe_events | grep "$DEF1" +cat kprobe_events | grep "$DEF2" + +:;: "Remove the event by name (should remove both)" ;: +echo "-:$EVENT_NAME" >> kprobe_events +test `cat kprobe_events | wc -l` -eq 0 + +:;: "Remove just 1 event" ;: +echo $DEF1 >> kprobe_events +echo $DEF2 >> kprobe_events +echo "-:$EVENT_NAME $SYM1" >> kprobe_events +! cat kprobe_events | grep "$DEF1" +cat kprobe_events | grep "$DEF2" + +:;: "Appending different type must fail" ;: +! echo "$DEF1 \$stack" >> kprobe_events diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc index 29faaec942c6..8a4025e912cb 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc @@ -41,6 +41,11 @@ check_error 'p vfs_read ^%none_reg' # BAD_REG_NAME check_error 'p vfs_read ^@12345678abcde' # BAD_MEM_ADDR check_error 'p vfs_read ^@+10' # FILE_ON_KPROBE +grep -q "imm-value" README && \ +check_error 'p vfs_read arg1=\^x' # BAD_IMM +grep -q "imm-string" README && \ +check_error 'p vfs_read arg1=\"abcd^' # IMMSTR_NO_CLOSE + check_error 'p vfs_read ^+0@0)' # DEREF_NEED_BRACE check_error 'p vfs_read ^+0ab1(@0)' # BAD_DEREF_OFFS check_error 'p vfs_read +0(+0(@0^)' # DEREF_OPEN_BRACE @@ -82,4 +87,15 @@ case $(uname -m) in ;; esac +# multiprobe errors +if grep -q "Create/append/" README && grep -q "imm-value" README; then +echo 'p:kprobes/testevent _do_fork' > kprobe_events +check_error '^r:kprobes/testevent do_exit' # DIFF_PROBE_TYPE +echo 'p:kprobes/testevent _do_fork abcd=\1' > kprobe_events +check_error 'p:kprobes/testevent _do_fork ^bcd=\1' # DIFF_ARG_TYPE +check_error 'p:kprobes/testevent _do_fork ^abcd=\1:u8' # DIFF_ARG_TYPE +check_error 'p:kprobes/testevent _do_fork ^abcd=\"foo"' # DIFF_ARG_TYPE +check_error '^p:kprobes/testevent _do_fork' # SAME_PROBE +fi + exit 0 |