1 files changed, 79 insertions, 0 deletions
diff --git a/tools/perf/tests/shell/trace_btf_enum.sh b/tools/perf/tests/shell/trace_btf_enum.sh
new file mode 100755
index 000000000000..03e9f680a4a6
--- /dev/null
+++ b/tools/perf/tests/shell/trace_btf_enum.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+# perf trace enum augmentation tests
+# SPDX-License-Identifier: GPL-2.0
+
+err=0
+
+syscall="landlock_add_rule"
+non_syscall="timer:hrtimer_start"
+
+TESTPROG="perf test -w landlock"
+
+# shellcheck source=lib/probe.sh
+. "$(dirname $0)"/lib/probe.sh
+skip_if_no_perf_trace || exit 2
+[ "$(id -u)" = 0 ] || exit 2
+
+check_vmlinux() {
+  echo "Checking if vmlinux exists"
+  if [ ! -f /sys/kernel/btf/vmlinux ]
+  then
+    echo "trace+enum test [Skipped missing vmlinux BTF support]"
+    err=2
+  fi
+}
+
+check_permissions() {
+  if perf trace -e $syscall $TESTPROG 2>&1 | grep -q "Operation not permitted"
+  then
+    echo "trace+enum test [Skipped permissions]"
+    err=2
+  fi
+}
+
+trace_landlock() {
+  echo "Tracing syscall ${syscall}"
+
+  # test flight just to see if landlock_add_rule is available
+  if ! perf trace $TESTPROG 2>&1 | grep -q landlock
+  then
+    echo "No landlock system call found, skipping to non-syscall tracing."
+    return
+  fi
+
+  output="$(perf trace -e $syscall $TESTPROG 2>&1)"
+  if echo "$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.*"
+  then
+    err=0
+  else
+	printf "[syscall failure] Failed to trace syscall $syscall, output:\n$output\n"
+    err=1
+  fi
+}
+
+trace_non_syscall() {
+  echo "Tracing non-syscall tracepoint ${non_syscall}"
+  output="$(perf trace -e $non_syscall --max-events=1 2>&1)"
+  if echo "$output" | grep -q -E '.*timer:hrtimer_.*\(.*mode: HRTIMER_MODE_.*\)$'
+  then
+    err=0
+  else
+	printf "[tracepoint failure] Failed to trace tracepoint $non_syscall, output:\n$output\n"
+    err=1
+  fi
+}
+
+check_vmlinux
+if [ $err = 0 ]; then
+  check_permissions
+fi
+
+if [ $err = 0 ]; then
+  trace_landlock
+fi
+
+if [ $err = 0 ]; then
+  trace_non_syscall
+fi
+
+exit $err