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>
57 lines
1.5 KiB
Bash
Executable File
57 lines
1.5 KiB
Bash
Executable File
#!/bin/bash
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# perf kallsyms tests
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# SPDX-License-Identifier: GPL-2.0
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err=0
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test_kallsyms() {
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echo "Basic perf kallsyms test"
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# Check if /proc/kallsyms is readable
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if [ ! -r /proc/kallsyms ]; then
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echo "Basic perf kallsyms test [Skipped: /proc/kallsyms not readable]"
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err=2
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return
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fi
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# Use a symbol that is definitely a function and present in all kernels, e.g. schedule
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symbol="schedule"
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# Run perf kallsyms
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# It prints "address symbol_name"
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output=$(perf kallsyms $symbol 2>&1)
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ret=$?
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if [ $ret -ne 0 ] || [ -z "$output" ]; then
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# If empty or failed, it might be due to permissions (kptr_restrict)
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# Check if we can grep the symbol from /proc/kallsyms directly
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if grep -q "$symbol" /proc/kallsyms 2>/dev/null; then
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# If it's in /proc/kallsyms but perf kallsyms returned empty/error,
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# it likely means perf couldn't parse it or access it correctly (e.g. kptr_restrict=2).
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echo "Basic perf kallsyms test [Skipped: $symbol found in /proc/kallsyms but perf kallsyms failed (output: '$output')]"
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err=2
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return
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else
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echo "Basic perf kallsyms test [Skipped: $symbol not found in /proc/kallsyms]"
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err=2
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return
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fi
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fi
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if echo "$output" | grep -q "not found"; then
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echo "Basic perf kallsyms test [Failed: output '$output' does not contain $symbol]"
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err=1
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return
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fi
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if perf kallsyms ErlingHaaland | grep -vq "not found"; then
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echo "Basic perf kallsyms test [Failed: ErlingHaaland found in the output]"
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err=1
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return
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fi
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echo "Basic perf kallsyms test [Success]"
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}
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test_kallsyms
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exit $err
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