binder tests respect libbinder bitness
Some 32-bit kernels use a binder kernel interface with a different API
controlled by the kernel configuration CONFIG_ANDROID_BINDER_IPC_32BIT.
This changes builds versions of these tests built for this bitness
specially so that they can run and work on these devices.
Test: atest --all binderLibTest{,_IPC_32} binderDriverInterfaceTest{,_IPC_32}
Bug: 154755898
Change-Id: I82b47e8064564a037bf8ed453e9ae7b8901b5667
diff --git a/libs/binder/tests/binderAbiHelper.h b/libs/binder/tests/binderAbiHelper.h
new file mode 100644
index 0000000..369b55d
--- /dev/null
+++ b/libs/binder/tests/binderAbiHelper.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+
+#pragma once
+
+#include <stdlib.h>
+#include <iostream>
+
+#ifdef BINDER_IPC_32BIT
+static constexpr bool kBuild32Abi = true;
+#else
+static constexpr bool kBuild32Abi = false;
+#endif
+
+// TODO: remove when CONFIG_ANDROID_BINDER_IPC_32BIT is no longer supported
+static inline bool ReadKernelConfigIs32BitAbi() {
+ // failure case implies we run with standard ABI
+ return 0 == system("zcat /proc/config.gz | grep -E \"^CONFIG_ANDROID_BINDER_IPC_32BIT=y$\"");
+}
+
+static inline void ExitIfWrongAbi() {
+ bool runtime32Abi = ReadKernelConfigIs32BitAbi();
+
+ if (kBuild32Abi != runtime32Abi) {
+ std::cout << "[==========] Running 1 test from 1 test suite." << std::endl;
+ std::cout << "[----------] Global test environment set-up." << std::endl;
+ std::cout << "[----------] 1 tests from BinderLibTest" << std::endl;
+ std::cout << "[ RUN ] BinderTest.AbortForWrongAbi" << std::endl;
+ std::cout << "[ INFO ] test build abi 32: " << kBuild32Abi << " runtime abi 32: " << runtime32Abi << " so, skipping tests " << std::endl;
+ std::cout << "[ OK ] BinderTest.AbortForWrongAbi (0 ms) " << std::endl;
+ std::cout << "[----------] 1 tests from BinderTest (0 ms total)" << std::endl;
+ std::cout << "" << std::endl;
+ std::cout << "[----------] Global test environment tear-down" << std::endl;
+ std::cout << "[==========] 1 test from 1 test suite ran. (0 ms total)" << std::endl;
+ std::cout << "[ PASSED ] 1 tests." << std::endl;
+ exit(0);
+ }
+}
+