1#!/bin/sh 2# perf trace enum augmentation tests 3# SPDX-License-Identifier: GPL-2.0 4 5err=0 6set -e 7 8syscall="landlock_add_rule" 9non_syscall="timer:hrtimer_init,timer:hrtimer_start" 10 11TESTPROG="perf test -w landlock" 12 13# shellcheck source=lib/probe.sh 14. "$(dirname $0)"/lib/probe.sh 15skip_if_no_perf_trace || exit 2 16 17check_vmlinux() { 18 echo "Checking if vmlinux exists" 19 if ! ls /sys/kernel/btf/vmlinux 1>/dev/null 2>&1 20 then 21 echo "trace+enum test [Skipped missing vmlinux BTF support]" 22 err=2 23 fi 24} 25 26trace_landlock() { 27 echo "Tracing syscall ${syscall}" 28 29 # test flight just to see if landlock_add_rule and libbpf are available 30 $TESTPROG 31 32 if perf trace -e $syscall $TESTPROG 2>&1 | \ 33 grep -q -E ".*landlock_add_rule\(ruleset_fd: 11, rule_type: (LANDLOCK_RULE_PATH_BENEATH|LANDLOCK_RULE_NET_PORT), rule_attr: 0x[a-f0-9]+, flags: 45\) = -1.*" 34 then 35 err=0 36 else 37 err=1 38 fi 39} 40 41trace_non_syscall() { 42 echo "Tracing non-syscall tracepoint ${non-syscall}" 43 if perf trace -e $non_syscall --max-events=1 2>&1 | \ 44 grep -q -E '.*timer:hrtimer_.*\(.*mode: HRTIMER_MODE_.*\)$' 45 then 46 err=0 47 else 48 err=1 49 fi 50} 51 52check_vmlinux 53 54if [ $err = 0 ]; then 55 trace_landlock 56fi 57 58if [ $err = 0 ]; then 59 trace_non_syscall 60fi 61 62exit $err 63