From c54e2f82721aadd59d2a354ae2b5cc32d32047d9 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Wed, 4 Jun 2025 10:45:39 -0700
Subject: [PATCH] perf tests record: Add basic uid filtering test

Based on the system-wide test with changes around how failure is
handled as BPF permissions are a bigger issue than perf event
paranoia.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250604174545.2853620-6-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/record.sh | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/tools/perf/tests/shell/record.sh b/tools/perf/tests/shell/record.sh
index 587f62e34414..2022a4f739be 100755
--- a/tools/perf/tests/shell/record.sh
+++ b/tools/perf/tests/shell/record.sh
@@ -231,6 +231,31 @@ test_cgroup() {
   echo "Cgroup sampling test [Success]"
 }
 
+test_uid() {
+  echo "Uid sampling test"
+  if ! perf record -aB --synth=no --uid "$(id -u)" -o "${perfdata}" ${testprog} \
+    > "${script_output}" 2>&1
+  then
+    if grep -q "libbpf.*EPERM" "${script_output}"
+    then
+      echo "Uid sampling [Skipped permissions]"
+      return
+    else
+      echo "Uid sampling [Failed to record]"
+      err=1
+      # cat "${script_output}"
+      return
+    fi
+  fi
+  if ! perf report -i "${perfdata}" -q | grep -q "${testsym}"
+  then
+    echo "Uid sampling [Failed missing output]"
+    err=1
+    return
+  fi
+  echo "Uid sampling test [Success]"
+}
+
 test_leader_sampling() {
   echo "Basic leader sampling test"
   if ! perf record -o "${perfdata}" -e "{cycles,cycles}:Su" -- \
@@ -345,6 +370,7 @@ test_system_wide
 test_workload
 test_branch_counter
 test_cgroup
+test_uid
 test_leader_sampling
 test_topdown_leader_sampling
 test_precise_max
-- 
2.25.1