From: Kunwu Chan <[email protected]> Add a shell script that runs the perf_aux_kernel KUnit suite through debugfs, builds and runs the userspace regression program, and performs static-analysis checks on the source tree (memory barriers, refcount types, boundary validation, EXPORT_SYMBOL_GPL coverage).
When an AUX-capable PMU is present, the script also runs a live perf record and checks dmesg for errors. Usage: sudo ./aux_kernel.sh [--pmu arm_spe_0] Co-developed-by: Lian Wang (Processmission) <[email protected]> Signed-off-by: Lian Wang (Processmission) <[email protected]> Signed-off-by: Kunwu Chan <[email protected]> --- tools/testing/selftests/perf_events/Makefile | 1 + .../selftests/perf_events/aux_kernel.sh | 563 ++++++++++++++++++ 2 files changed, 564 insertions(+) create mode 100755 tools/testing/selftests/perf_events/aux_kernel.sh diff --git a/tools/testing/selftests/perf_events/Makefile b/tools/testing/selftests/perf_events/Makefile index fbafbd43f097..9b82c7ee1238 100644 --- a/tools/testing/selftests/perf_events/Makefile +++ b/tools/testing/selftests/perf_events/Makefile @@ -4,4 +4,5 @@ LDFLAGS += -lpthread TEST_GEN_PROGS := sigtrap_threads remove_on_exec watermark_signal mmap TEST_GEN_PROGS += aux_kernel_usermode +TEST_PROGS += aux_kernel.sh include ../lib.mk diff --git a/tools/testing/selftests/perf_events/aux_kernel.sh b/tools/testing/selftests/perf_events/aux_kernel.sh new file mode 100755 index 000000000000..431f59ef02e7 --- /dev/null +++ b/tools/testing/selftests/perf_events/aux_kernel.sh @@ -0,0 +1,563 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# Perf AUX Kernel-Consumer API - Comprehensive Selftest +# +# Validates the perf-core AUX kernel-consumer API added by the +# perf_aux_support patch series: +# - perf_event_setup_aux() / perf_event_release_aux() +# - perf_event_aux_head() / perf_event_aux_tail_set() / perf_event_aux_copy() +# +# Test layers: +# 1. Build-time checks (Kconfig, Makefile, symbol exports, source) +# 2. KUnit suite (API contract: error paths, lifecycle, validation) +# 3. Userspace AUX regression (mmap AUX still works, aux_mmap_count +# independent, userspace+kernel coexistence) +# 4. Hardware AUX live test (if ARM SPE or Intel PT is available) +# 5. DAMON integration verification +# 6. Memory ordering/barrier static analysis +# 7. Boundary validation static analysis +# 8. Concurrency safety checks +# 9. User/kernel AUX isolation checks +# +# Usage: sudo ./aux_kernel.sh [--pmu arm_spe_0|intel_pt] +# +# Requirements: +# - CONFIG_PERF_EVENTS=y +# - CONFIG_PERF_AUX_KERNEL_KUNIT_TEST=y and CONFIG_KUNIT_DEBUGFS=y +# - Root privileges for most sections + +set -e +PASSED=0; FAILED=0; SKIPPED=0 +pass() { echo " [PASS] $1"; PASSED=$((PASSED + 1)); } +fail() { echo " [FAIL] $1"; FAILED=$((FAILED + 1)); } +skip() { echo " [SKIP] $*"; SKIPPED=$((SKIPPED + 1)); } + +RESULTS_DIR="/tmp/perf_aux_kernel_test_$$" +mkdir -p "$RESULTS_DIR" +exec > >(tee "$RESULTS_DIR/output.log") 2>&1 + +SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)" +ROOT="$(git rev-parse --show-toplevel 2>/dev/null || true)" +if [[ -z "$ROOT" ]]; then + ROOT="/usr/src/linux" +fi + +PMU_ARG="${1:-}" +if [[ "$PMU_ARG" == "--pmu" ]]; then + PMU_NAME="${2:-arm_spe_0}" +elif [[ -n "$PMU_ARG" ]]; then + PMU_NAME="$PMU_ARG" +else + PMU_NAME="arm_spe_0" +fi + +echo "==========================================" +echo " Perf AUX Kernel-Consumer API Test" +echo "==========================================" +echo "Kernel tree: $ROOT" +echo "Results dir: $RESULTS_DIR" +echo "Target PMU: $PMU_NAME" +echo "Script dir: $SCRIPT_DIR" +echo "" + +# ---- Section 1: Build-time checks ---- +echo "--- 1. Build-time Configuration ---" + +# Check that the KUnit test is built +KUNIT_SUITE="/sys/kernel/debug/kunit/perf_aux_kernel" +if [[ -d "$KUNIT_SUITE" ]]; then + pass "KUnit suite 'perf_aux_kernel' is registered" +else + skip "KUnit suite 'perf_aux_kernel' not registered" \ + "(CONFIG_PERF_AUX_KERNEL_KUNIT_TEST not set)" +fi + +# Check that required symbols are exported +SYMBOLS_FILE="/proc/kallsyms" +if [[ -r "$SYMBOLS_FILE" ]]; then + for sym in perf_event_setup_aux perf_event_release_aux \ + perf_event_aux_head perf_event_aux_tail_set perf_event_aux_copy; do + if grep -q "$sym" "$SYMBOLS_FILE" 2>/dev/null; then + pass "Symbol exported: $sym" + else + fail "Symbol not exported: $sym (patch not applied?)" + fi + done +else + skip "Symbol check" "/proc/kallsyms not readable" +fi + +# Check that the source files exist +SRC_EVENTS="$ROOT/kernel/events" +for f in core.c ring_buffer.c internal.h; do + if [[ -f "$SRC_EVENTS/$f" ]]; then + pass "Source file: kernel/events/$f" + else + fail "Source file: kernel/events/$f missing" + fi +done + +# Check that the KUnit test source exists +if [[ -f "$SRC_EVENTS/aux_kernel_test.c" ]]; then + pass "Source file: kernel/events/aux_kernel_test.c" +else + skip "Source file: kernel/events/aux_kernel_test.c not found" +fi + +# Check that aux_kernel_count is in internal.h +if grep -q 'aux_kernel_count' "$SRC_EVENTS/internal.h" 2>/dev/null; then + pass "struct perf_buffer: aux_kernel_count field present" +else + fail "struct perf_buffer: aux_kernel_count field missing" +fi + +# Check that aux_kernel_count is used in perf_aux_output_begin() +if grep -q 'aux_kernel_count' "$SRC_EVENTS/ring_buffer.c" 2>/dev/null; then + pass "ring_buffer.c: aux_kernel_count guard in perf_aux_output_begin()" +else + fail "ring_buffer.c: aux_kernel_count guard missing in perf_aux_output_begin()" +fi + +# Check that the new API functions are in core.c / ring_buffer.c +for func in perf_event_setup_aux perf_event_release_aux; do + if grep -q "int $func\|void $func" "$SRC_EVENTS/core.c" 2>/dev/null; then + pass "core.c: $func() defined" + else + fail "core.c: $func() not found" + fi +done +for func in perf_event_aux_head perf_event_aux_tail_set perf_event_aux_copy; do + if grep -q "$func" "$SRC_EVENTS/ring_buffer.c" 2>/dev/null; then + pass "ring_buffer.c: $func() defined" + else + fail "ring_buffer.c: $func() not found" + fi +done + +# Check that EXPORT_SYMBOL_GPL is present +for func in perf_event_setup_aux perf_event_release_aux \ + perf_event_aux_head perf_event_aux_tail_set perf_event_aux_copy; do + if grep -q "EXPORT_SYMBOL_GPL($func)" "$SRC_EVENTS/core.c" \ + "$SRC_EVENTS/ring_buffer.c" 2>/dev/null; then + pass "EXPORT_SYMBOL_GPL: $func" + else + fail "EXPORT_SYMBOL_GPL: $func not found" + fi +done + +# ---- Section 2: KUnit API contract tests ---- +echo "" +echo "--- 2. KUnit API Contract Tests ---" + +KUNIT_DIR="/sys/kernel/debug/kunit/perf_aux_kernel" +if [[ -d "$KUNIT_DIR" ]]; then + if [[ -f "$KUNIT_DIR/run" ]]; then + echo run > "$KUNIT_DIR/run" 2>/dev/null || true + fi + RES="$KUNIT_DIR/results" + if [[ -f "$RES" ]]; then + cp "$RES" "$RESULTS_DIR/kunit-results.log" + + if grep -Eq "^[[:space:]]*not ok" "$RES"; then + fail "KUnit API contract suite has failing cases" + grep -E "^[[:space:]]*not ok" "$RES" | sed 's/^/ /' + elif grep -Eq "^[[:space:]]*ok " "$RES"; then + pass "KUnit API contract suite: all cases pass" + else + fail "KUnit API contract suite produced no completed cases" + fi + echo " $(grep '# Totals:' "$RES" | tail -1)" + + # Spot-check all 38 test cases (deterministic, dummy PMU) + for c in "test_setup_rejects_non_power_of_two" \ + "test_setup_accepts_power_of_two" \ + "test_setup_rejects_double" \ + "test_setup_parent_event_rejected" \ + "test_setup_rejects_negative_watermark" \ + "test_setup_with_explicit_watermark" \ + "test_writer_admitted_after_setup" \ + "test_writer_blocked_after_release" \ + "test_release_noop_without_rb" \ + "test_setup_release_roundtrip" \ + "test_multi_setup_release_cycle" \ + "test_double_release_clean" \ + "test_two_events_independent" \ + "test_release_one_does_not_affect_other" \ + "test_user_kernel_coexistence" \ + "test_concurrent_release" \ + "test_head_initial_zero" \ + "test_head_advances_after_produce" \ + "test_head_no_rb_zero" \ + "test_copy_full_window" \ + "test_copy_wrap" \ + "test_copy_zero_len" \ + "test_copy_data_correctness" \ + "test_copy_rejects_rewound" \ + "test_copy_rejects_future" \ + "test_copy_rejects_oversized" \ + "test_copy_rejects_null_buf" \ + "test_copy_rejects_already_consumed" \ + "test_copy_no_rb_enoent" \ + "test_tail_set_valid_frees_space" \ + "test_tail_set_rejects_future" \ + "test_tail_set_accepts_within_ring_window" \ + "test_tail_set_rejects_behind_ring" \ + "test_tail_set_noop" \ + "test_tail_set_consume_all" \ + "test_tail_set_no_rb_enoent" \ + "test_multi_produce_copy_cycle" \ + "test_output_end_zero_size" \ + "test_buffer_full_stops_producer"; do + if grep -Eq "^[[:space:]]*ok .*$c" "$RES"; then + pass "KUnit case: $c" + else + fail "KUnit case: $c" + fi + done + else + skip "KUnit results" "no results file (suite did not run)" + fi +else + skip "KUnit API contract" "CONFIG_PERF_AUX_KERNEL_KUNIT_TEST" \ + "or CONFIG_KUNIT_DEBUGFS missing" +fi + +# ---- Section 3: Userspace AUX regression (C program) ---- +echo "" +echo "--- 3. Userspace AUX Regression (api-level) ---" + +# Build and run the C regression test program +UMODE_SRC="$SCRIPT_DIR/aux_kernel_usermode.c" +UMODE_BIN="$SCRIPT_DIR/aux_kernel_usermode" + +if [[ -f "$UMODE_SRC" ]]; then + if [[ ! -x "$UMODE_BIN" ]] || [[ "$UMODE_SRC" -nt "$UMODE_BIN" ]]; then + echo " Building aux_kernel_usermode..." + gcc -o "$UMODE_BIN" "$UMODE_SRC" -Wall -Wextra -O2 2>&1 | \ + sed 's/^/ /' || { + skip "aux_kernel_usermode" "build failed" + UMODE_BIN="" + } + fi + + if [[ -n "$UMODE_BIN" && -x "$UMODE_BIN" ]]; then + if "$UMODE_BIN" "$PMU_NAME" 2>&1 | tee "$RESULTS_DIR/usermode.log" | \ + grep -c '\[PASS\]' > /dev/null; then + # Count pass/fail from the output + UMODE_PASS=$(grep -c '\[PASS\]' "$RESULTS_DIR/usermode.log" || true) + UMODE_FAIL=$(grep -c '\[FAIL\]' "$RESULTS_DIR/usermode.log" || true) + UMODE_SKIP=$(grep -c '\[SKIP\]' "$RESULTS_DIR/usermode.log" || true) + pass "Userspace API regression: $UMODE_PASS passed," \ + " $UMODE_FAIL failed, $UMODE_SKIP skipped" + if [[ "$UMODE_FAIL" -gt 0 ]]; then + fail "Userspace API regression: $UMODE_FAIL failures" + fi + else + fail "Userspace API regression: C program failed" + fi + else + skip "Userspace API regression" "C program not available" + fi +else + skip "Userspace API regression" "$UMODE_SRC not found" +fi + +# Check that aux_mmap_count refcount is not affected by aux_kernel_count +# (static analysis: verify the two refcounts are separate in internal.h) +if grep -q 'aux_mmap_count' "$SRC_EVENTS/internal.h" 2>/dev/null && \ + grep -q 'aux_kernel_count' "$SRC_EVENTS/internal.h" 2>/dev/null; then + pass "Refcount separation: aux_mmap_count and aux_kernel_count are distinct" +else + fail "Refcount separation: aux_mmap_count or aux_kernel_count missing" +fi + +# ---- Section 4: Hardware AUX live test ---- +echo "" +echo "--- 4. Hardware AUX Live Test ---" + +PMU_DIR="/sys/bus/event_source/devices/$PMU_NAME" +PERF_BIN=$(which perf 2>/dev/null || true) +if [[ -d "$PMU_DIR" ]]; then + PMU_TYPE=$(cat "$PMU_DIR/type" 2>/dev/null || true) + if [[ -n "$PMU_TYPE" ]]; then + pass "AUX PMU $PMU_NAME present (type=$PMU_TYPE)" + + if [[ -f "$PMU_DIR/caps/aux_output" ]]; then + pass "PMU $PMU_NAME: aux_output capability present" + else + skip "PMU $PMU_NAME: aux_output capability not found" + fi + + if [[ -n "$PERF_BIN" ]]; then + DMESG_BEFORE=$(dmesg 2>/dev/null | wc -l) + if "$PERF_BIN" record -e "$PMU_NAME/period=100000/" \ + -o "$RESULTS_DIR/perf_hw.data" -- sleep 0.5 2>/dev/null; then + pass "Hardware AUX: perf record with $PMU_NAME succeeded" + else + fail "Hardware AUX: perf record with $PMU_NAME failed" + fi + + DMESG_AFTER="$RESULTS_DIR/dmesg-hardware.log" + dmesg 2>/dev/null > "$DMESG_AFTER" || true + DMESG_LINES_AFTER=$(wc -l < "$DMESG_AFTER") + if [[ "$DMESG_LINES_AFTER" -ge "$DMESG_BEFORE" ]]; then + NEW_DMESG=$(tail -n "+$((DMESG_BEFORE + 1))" "$DMESG_AFTER") + else + NEW_DMESG=$(cat "$DMESG_AFTER") + fi + FAIL_LINES=$(printf '%s\n' "$NEW_DMESG" | \ + grep -Ei "perf.*(fail|warn|error).*aux|"\ +"WARNING:|BUG:|Oops:|lockdep" || true) + if [[ -n "$FAIL_LINES" ]]; then + fail "dmesg: errors during hardware AUX test" + echo "$FAIL_LINES" | sed 's/^/ /' + else + pass "dmesg: clean during hardware AUX test" + fi + fi + else + skip "Hardware AUX" "PMU type not readable" + fi +else + skip "Hardware AUX" "PMU $PMU_NAME not available" +fi + +# ---- Section 5: DAMON integration check ---- +echo "" +echo "--- 5. DAMON Integration Verification ---" + +DAMON_ADMIN="/sys/kernel/mm/damon/admin" +if [[ -d "$DAMON_ADMIN" ]]; then + pass "DAMON sysfs interface available" + + if [[ -d "$DAMON_ADMIN/kdamonds/0/contexts/0/monitoring_attrs/sample/perf_events" ]] || \ + [[ -d "/sys/kernel/debug/damon/perf_stats" ]]; then + pass "DAMON perf observe infrastructure detected" + else + skip "DAMON perf observe" "debugfs or sysfs interface not available" + fi + + DAMON_TEST_DIR="$ROOT/tools/testing/selftests/damon" + if [[ -d "$DAMON_TEST_DIR" ]]; then + pass "DAMON selftest directory present" + else + skip "DAMON selftest directory" "not found at $DAMON_TEST_DIR" + fi +else + skip "DAMON integration" "DAMON admin interface not available" +fi + +# ---- Section 6: Memory ordering and concurrency checks ---- +echo "" +echo "--- 6. Memory Ordering & Concurrency ---" + +# Verify smp_rmb() in perf_event_aux_head() +if grep -q 'smp_rmb' "$SRC_EVENTS/ring_buffer.c" 2>/dev/null; then + pass "perf_event_aux_head(): smp_rmb() barrier present" +else + fail "perf_event_aux_head(): smp_rmb() barrier missing" +fi + +# Verify smp_mb() in perf_event_aux_tail_set() +if grep -A30 'perf_event_aux_tail_set' "$SRC_EVENTS/ring_buffer.c" 2>/dev/null | \ + grep -q 'smp_mb'; then + pass "perf_event_aux_tail_set(): smp_mb() barrier present" +else + fail "perf_event_aux_tail_set(): smp_mb() barrier missing" +fi + +# Verify aux_refcount protection in perf_event_aux_copy() +if grep -A80 'perf_event_aux_copy' "$SRC_EVENTS/ring_buffer.c" 2>/dev/null | \ + grep -q 'aux_refcount'; then + pass "perf_event_aux_copy(): aux_refcount protection present" +else + fail "perf_event_aux_copy(): aux_refcount protection missing" +fi + +# Verify mmap_mutex serialization in setup/release +if grep -A30 'perf_event_setup_aux' "$SRC_EVENTS/core.c" 2>/dev/null | \ + grep -q 'mmap_mutex'; then + pass "perf_event_setup_aux(): mmap_mutex serialization present" +else + fail "perf_event_setup_aux(): mmap_mutex serialization missing" +fi +if grep -A30 'perf_event_release_aux' "$SRC_EVENTS/core.c" 2>/dev/null | \ + grep -q 'mmap_mutex'; then + pass "perf_event_release_aux(): mmap_mutex serialization present" +else + fail "perf_event_release_aux(): mmap_mutex serialization missing" +fi + +# Verify aux_mutex protection in release +if grep -A20 'perf_event_release_aux' "$SRC_EVENTS/core.c" 2>/dev/null | \ + grep -q 'aux_mutex'; then + pass "perf_event_release_aux(): aux_mutex protection present" +else + fail "perf_event_release_aux(): aux_mutex protection missing" +fi + +# ---- Section 7: Boundary validation checks ---- +echo "" +echo "--- 7. API Contract: Boundary Validation ---" + +# perf_event_setup_aux() rejects non-power-of-2 +if grep -q 'is_power_of_2' "$SRC_EVENTS/core.c" 2>/dev/null; then + pass "perf_event_setup_aux(): is_power_of_2() check present" +else + fail "perf_event_setup_aux(): is_power_of_2() check missing" +fi + +# perf_event_setup_aux() checks is_kernel_event() +if grep -q 'is_kernel_event' "$SRC_EVENTS/core.c" 2>/dev/null; then + pass "perf_event_setup_aux(): is_kernel_event() check present" +else + fail "perf_event_setup_aux(): is_kernel_event() check missing" +fi + +# perf_event_setup_aux() checks event->parent +if grep -A20 'perf_event_setup_aux' "$SRC_EVENTS/core.c" 2>/dev/null | \ + grep -q 'event->parent'; then + pass "perf_event_setup_aux(): event->parent check present" +else + fail "perf_event_setup_aux(): event->parent check missing" +fi + +# perf_event_aux_copy() validates window size +if grep -A80 'perf_event_aux_copy' "$SRC_EVENTS/ring_buffer.c" 2>/dev/null | \ + grep -q 'available.*aux_size'; then + pass "perf_event_aux_copy(): window bounds check present" +else + fail "perf_event_aux_copy(): window bounds check missing" +fi + +# rb_has_kernel_aux() helper +if grep -q 'rb_has_kernel_aux' "$SRC_EVENTS/ring_buffer.c" 2>/dev/null; then + pass "ring_buffer.c: rb_has_kernel_aux() helper defined" +else + fail "ring_buffer.c: rb_has_kernel_aux() helper missing" +fi + +# perf_event_aux_tail_set() validates advance <= head - old_tail +if grep -A20 'perf_event_aux_tail_set' "$SRC_EVENTS/ring_buffer.c" 2>/dev/null | \ + grep -q 'advance.*head.*old_tail'; then + pass "perf_event_aux_tail_set(): advance bounds check present" +else + fail "perf_event_aux_tail_set(): advance bounds check missing" +fi + +# perf_event_aux_copy() validates from/to in [tail, head] +if grep -A80 'perf_event_aux_copy' "$SRC_EVENTS/ring_buffer.c" 2>/dev/null | \ + grep -q 'start.*available\|len.*available.*start'; then + pass "perf_event_aux_copy(): from/to bounds check present" +else + fail "perf_event_aux_copy(): from/to bounds check missing" +fi + +# ---- Section 8: Concurrency safety checks ---- +echo "" +echo "--- 8. Concurrency Safety ---" + +# Check that aux_kernel_count uses refcount_t (atomic) +if grep -q 'refcount_t.*aux_kernel_count' "$SRC_EVENTS/internal.h" 2>/dev/null; then + pass "aux_kernel_count: refcount_t (atomic) type" +else + fail "aux_kernel_count: not refcount_t" +fi + +# Check that aux_kernel_count is used with refcount_dec_and_mutex_lock +if grep -q 'refcount_dec_and_mutex_lock.*aux_kernel_count' "$SRC_EVENTS/core.c" 2>/dev/null; then + pass "aux_kernel_count: refcount_dec_and_mutex_lock() in release" +else + fail "aux_kernel_count: refcount_dec_and_mutex_lock() missing in release" +fi + +# Check that aux_refcount is incremented in copy +if grep -A80 'perf_event_aux_copy' "$SRC_EVENTS/ring_buffer.c" 2>/dev/null | \ + grep -q 'refcount_inc_not_zero.*aux_refcount'; then + pass "perf_event_aux_copy(): aux_refcount_inc_not_zero() present" +else + fail "perf_event_aux_copy(): aux_refcount_inc_not_zero() missing" +fi + +# Check that rb_free_aux is called at end of copy (release refcount) +if grep -A80 'perf_event_aux_copy' "$SRC_EVENTS/ring_buffer.c" 2>/dev/null | \ + grep -q 'rb_free_aux'; then + pass "perf_event_aux_copy(): rb_free_aux() at exit (balanced refcount)" +else + fail "perf_event_aux_copy(): rb_free_aux() missing at exit" +fi + +# Check that is_kernel_event guard is on both setup and release +if grep -A20 'perf_event_setup_aux' "$SRC_EVENTS/core.c" 2>/dev/null | \ + grep -q 'is_kernel_event'; then + pass "setup side: is_kernel_event() guard present" +else + fail "setup side: is_kernel_event() guard missing" +fi +if grep -A20 'perf_event_release_aux' "$SRC_EVENTS/core.c" 2>/dev/null | \ + grep -q 'is_kernel_event'; then + pass "release side: is_kernel_event() guard present" +else + fail "release side: is_kernel_event() guard missing" +fi + +# Check that event->parent guard is on both setup and release +if grep -A20 'perf_event_setup_aux' "$SRC_EVENTS/core.c" 2>/dev/null | \ + grep -q 'event->parent'; then + pass "setup side: event->parent guard present" +else + fail "setup side: event->parent guard missing" +fi +if grep -A20 'perf_event_release_aux' "$SRC_EVENTS/core.c" 2>/dev/null | \ + grep -q 'event->parent'; then + pass "release side: event->parent guard present" +else + fail "release side: event->parent guard missing" +fi + +# ---- Section 9: User/kernel AUX isolation ---- +echo "" +echo "--- 9. User/Kernel AUX Isolation ---" + +if grep -A30 'perf_event_setup_aux' "$SRC_EVENTS/core.c" 2>/dev/null | \ + grep -q 'EBUSY'; then + pass "setup_aux: -EBUSY when event->rb exists (user+kernel exclusion)" +else + fail "setup_aux: missing -EBUSY guard" +fi + +if grep -q 'aux_mmap_count' "$SRC_EVENTS/internal.h" 2>/dev/null && \ + grep -q 'aux_kernel_count' "$SRC_EVENTS/internal.h" 2>/dev/null; then + pass "aux_mmap_count and aux_kernel_count are distinct fields" +else + fail "aux_mmap_count or aux_kernel_count missing" +fi + +if grep -B2 -A2 'aux_mmap_count' "$SRC_EVENTS/ring_buffer.c" 2>/dev/null | \ + grep -q 'aux_kernel_count'; then + pass "perf_aux_output_begin: checks both owner counts" +else + fail "perf_aux_output_begin: does not check both counts" +fi + +if grep -q 'aux_kernel_count' "$SRC_EVENTS/core.c" 2>/dev/null; then + pass "release_aux: checks aux_kernel_count ownership" +else + fail "release_aux: missing aux_kernel_count check" +fi + +# ---- Summary ---- +echo "" +echo "==========================================" +echo " SUMMARY: $PASSED passed, $FAILED failed, $SKIPPED skipped" +echo "==========================================" +echo "Results saved to: $RESULTS_DIR" + +if [[ "$FAILED" -gt 0 ]]; then + echo "Overall: FAIL" + exit 1 +else + echo "Overall: PASS" + exit 0 +fi -- 2.43.0
