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_setup,timer:hrtimer_start" 10 11TESTPROG="perf test -w landlock" 12 13# shellcheck source=lib/probe.sh 14. "$(dirname $0)"/lib/probe.sh 15skip_if_no_perf_trace || exit 2 16[ "$(id -u)" = 0 ] || exit 2 17 18check_vmlinux() { 19 echo "Checking if vmlinux exists" 20 if ! ls /sys/kernel/btf/vmlinux 1>/dev/null 2>&1 21 then 22 echo "trace+enum test [Skipped missing vmlinux BTF support]" 23 err=2 24 fi 25} 26 27trace_landlock() { 28 echo "Tracing syscall ${syscall}" 29 30 # test flight just to see if landlock_add_rule is available 31 if ! perf trace $TESTPROG 2>&1 | grep -q landlock 32 then 33 echo "No landlock system call found, skipping to non-syscall tracing." 34 return 35 fi 36 37 if perf trace -e $syscall $TESTPROG 2>&1 | \ 38 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.*" 39 then 40 err=0 41 else 42 err=1 43 fi 44} 45 46trace_non_syscall() { 47 echo "Tracing non-syscall tracepoint ${non-syscall}" 48 if perf trace -e $non_syscall --max-events=1 2>&1 | \ 49 grep -q -E '.*timer:hrtimer_.*\(.*mode: HRTIMER_MODE_.*\)$' 50 then 51 err=0 52 else 53 err=1 54 fi 55} 56 57check_vmlinux 58 59if [ $err = 0 ]; then 60 trace_landlock 61fi 62 63if [ $err = 0 ]; then 64 trace_non_syscall 65fi 66 67exit $err 68