Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
80 lines
1.8 KiB
Bash
Executable File
80 lines
1.8 KiB
Bash
Executable File
#!/bin/bash
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# perf trace enum augmentation tests
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# SPDX-License-Identifier: GPL-2.0
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err=0
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syscall="landlock_add_rule"
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non_syscall="timer:hrtimer_start"
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TESTPROG="perf test -w landlock"
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# shellcheck source=lib/probe.sh
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. "$(dirname $0)"/lib/probe.sh
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skip_if_no_perf_trace || exit 2
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[ "$(id -u)" = 0 ] || exit 2
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check_vmlinux() {
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echo "Checking if vmlinux exists"
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if [ ! -f /sys/kernel/btf/vmlinux ]
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then
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echo "trace+enum test [Skipped missing vmlinux BTF support]"
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err=2
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fi
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}
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check_permissions() {
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if perf trace -e $syscall $TESTPROG 2>&1 | grep -q "Operation not permitted"
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then
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echo "trace+enum test [Skipped permissions]"
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err=2
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fi
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}
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trace_landlock() {
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echo "Tracing syscall ${syscall}"
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# test flight just to see if landlock_add_rule is available
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if ! perf trace $TESTPROG 2>&1 | grep -q landlock
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then
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echo "No landlock system call found, skipping to non-syscall tracing."
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return
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fi
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output="$(perf trace -e $syscall $TESTPROG 2>&1)"
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if echo "$output" | 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.*"
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then
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err=0
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else
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printf "[syscall failure] Failed to trace syscall $syscall, output:\n$output\n"
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err=1
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fi
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}
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trace_non_syscall() {
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echo "Tracing non-syscall tracepoint ${non_syscall}"
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output="$(perf trace -e $non_syscall --max-events=1 2>&1)"
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if echo "$output" | grep -q -E '.*timer:hrtimer_.*\(.*mode: HRTIMER_MODE_.*\)$'
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then
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err=0
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else
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printf "[tracepoint failure] Failed to trace tracepoint $non_syscall, output:\n$output\n"
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err=1
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fi
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}
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check_vmlinux
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if [ $err = 0 ]; then
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check_permissions
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fi
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if [ $err = 0 ]; then
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trace_landlock
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fi
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if [ $err = 0 ]; then
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trace_non_syscall
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fi
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exit $err
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