Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
perf test: Skip syscall enum test if no landlock syscall
The perf trace enum augmentation test specifically targets landlock_
add_rule syscall but IIUC it's an optional and can be opt-out by a
kernel config.
Currently trace_landlock() runs `perf test -w landlock` before the
actual testing to check the availability but it's not enough since the
workload always returns 0. Instead it could check if perf trace output
has 'landlock' string.
Fixes: d66763fed30f0bd8c ("perf test trace_btf_enum: Add regression test for the BTF augmentation of enums in 'perf trace'")
Reviewed-by: Howard Chu <howardchu95@gmail.com>
Link: https://lore.kernel.org/r/20250128170629.1251574-1-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
+6
-2
+6
-2
tools/perf/tests/shell/trace_btf_enum.sh
+6
-2
tools/perf/tests/shell/trace_btf_enum.sh
···
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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 and libbpf are available
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-
$TESTPROG
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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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if perf trace -e $syscall $TESTPROG 2>&1 | \
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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.*"