Merge "bionic: Add tests for cpu target features" into main

Author: ajordanr-google

tests/Android.bp

@@ -389,6 +389,7 @@ cc_test_library {
         "bug_26110743_test.cpp",
         "byteswap_test.cpp",
         "complex_test.cpp",
+        "cpu_target_features_test.cpp",
         "ctype_test.cpp",
         "dirent_test.cpp",
         "elf_test.cpp",

tests/cpu_target_features_test.cpp

@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <gtest/gtest.h>
+#include <stdlib.h>
+
+#include "utils.h"
+
+TEST(cpu_target_features, has_expected_x86_compiler_values) {
+#if defined(__x86_64__) || defined(__i386__)
+  ExecTestHelper eth;
+  char* const argv[] = {nullptr};
+  const auto invocation = [&] { execvp("cpu-target-features", argv); };
+  eth.Run(invocation, 0, "(^|\n)__AES__=1($|\n)");
+  eth.Run(invocation, 0, "(^|\n)__CRC32__=1($|\n)");
+#else
+  GTEST_SKIP() << "Not targeting an x86 architecture.";
+#endif
+}
+
+TEST(cpu_target_features, has_expected_aarch64_compiler_values) {
+#if defined(__aarch64__)
+  ExecTestHelper eth;
+  char* const argv[] = {nullptr};
+  const auto invocation = [&] { execvp("cpu-target-features", argv); };
+  eth.Run(invocation, 0, "(^|\n)__ARM_FEATURE_AES=1($|\n)");
+  eth.Run(invocation, 0, "(^|\n)__ARM_FEATURE_CRC32=1($|\n)");
+#else
+  GTEST_SKIP() << "Not targeting an aarch64 architecture.";
+#endif
+}
+
+TEST(cpu_target_features, has_expected_arm_compiler_values) {
+#if defined(__arm__)
+  ExecTestHelper eth;
+  char* const argv[] = {nullptr};
+  const auto invocation = [&] { execvp("cpu-target-features", argv); };
+  eth.Run(invocation, 0, "(^|\n)__ARM_FEATURE_AES=1($|\n)");
+  eth.Run(invocation, 0, "(^|\n)__ARM_FEATURE_CRC32=1($|\n)");
+#else
+  GTEST_SKIP() << "Not targeting an arm architecture.";
+#endif
+}