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. "$(dirname $0)"/lib/probe.sh 14skip_if_no_perf_trace || exit 2 15 16check_vmlinux() { 17 echo "Checking if vmlinux exists" 18 if ! ls /sys/kernel/btf/vmlinux 1>/dev/null 2>&1 19 then 20 echo "trace+enum test [Skipped missing vmlinux BTF support]" 21 err=2 22 fi 23} 24 25trace_landlock() { 26 echo "Tracing syscall ${syscall}" 27 28 # test flight just to see if landlock_add_rule and libbpf are available 29 $TESTPROG 30 31 if perf trace -e $syscall $TESTPROG 2>&1 | \ 32 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.*" 33 then 34 err=0 35 else 36 err=1 37 fi 38} 39 40trace_non_syscall() { 41 echo "Tracing non-syscall tracepoint ${non-syscall}" 42 if perf trace -e $non_syscall --max-events=1 2>&1 | \ 43 grep -q -E '.*timer:hrtimer_.*\(.*mode: HRTIMER_MODE_.*\)$' 44 then 45 err=0 46 else 47 err=1 48 fi 49} 50 51check_vmlinux 52 53if [ $err = 0 ]; then 54 trace_landlock 55fi 56 57if [ $err = 0 ]; then 58 trace_non_syscall 59fi 60 61exit $err 62