nativebridge: Add isNativeBridgeFunctionPointer method

This method lets native bridge report if particular pointer is in the
region of code executable by native bridge implementation.

Bug: 393035780
Test: atest art/libnativebridge/tests
Change-Id: Icaec80cb7efae5b918aed0a98216cbfaeaba330d

1 files changed, 39 insertions, 0 deletions

diff --git a/libnativebridge/tests/NativeBridge8IdentifyTrampolines_test.cpp b/libnativebridge/tests/NativeBridge8IdentifyTrampolines_test.cpp
new file mode 100644
index 0000000000..362df54fa1
--- /dev/null
+++ b/libnativebridge/tests/NativeBridge8IdentifyTrampolines_test.cpp
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2025 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "NativeBridge8IdentifyTrampolines_lib.h"
+#include "NativeBridgeTest.h"
+
+namespace android {
+
+TEST_F(NativeBridgeTest, V8_IdentifyTrampolines) {
+  // Init
+  ASSERT_TRUE(LoadNativeBridge(kNativeBridgeLibrary8, nullptr));
+  ASSERT_TRUE(NativeBridgeAvailable());
+  ASSERT_TRUE(PreInitializeNativeBridge(AppDataDir(), "isa"));
+  ASSERT_TRUE(NativeBridgeAvailable());
+  ASSERT_TRUE(InitializeNativeBridge(nullptr, nullptr));
+  ASSERT_TRUE(NativeBridgeAvailable());
+
+  ASSERT_EQ(NativeBridgeGetVersion(), 8U);
+
+  const void* ptr = reinterpret_cast<void*>(NativeBridgeGetVersion);
+
+  UNUSED(NativeBridgeIsNativeBridgeFunctionPointer(ptr));
+  ASSERT_TRUE(IsNativeBridgeFunctionPointerCalledFor(ptr));
+}
+
+}  // namespace android