upload android base code part3

android/art/runtime/arch/instruction_set_features_test.cc

@@ -0,0 +1,164 @@
+/*
+ * Copyright (C) 2014 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 "instruction_set_features.h"
+
+#include <gtest/gtest.h>
+
+#ifdef ART_TARGET_ANDROID
+#include "android-base/properties.h"
+#endif
+
+#include "android-base/stringprintf.h"
+
+#include "base/logging.h"
+
+namespace art {
+
+using android::base::StringPrintf;
+
+#ifdef ART_TARGET_ANDROID
+#if defined(__aarch64__)
+TEST(InstructionSetFeaturesTest, DISABLED_FeaturesFromSystemPropertyVariant) {
+  LOG(WARNING) << "Test disabled due to no CPP define for A53 erratum 835769";
+#else
+TEST(InstructionSetFeaturesTest, FeaturesFromSystemPropertyVariant) {
+#endif
+  // Take the default set of instruction features from the build.
+  std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
+      InstructionSetFeatures::FromCppDefines());
+
+  // Read the variant property.
+  std::string key = StringPrintf("dalvik.vm.isa.%s.variant", GetInstructionSetString(kRuntimeISA));
+  std::string dex2oat_isa_variant = android::base::GetProperty(key, "");
+  if (!dex2oat_isa_variant.empty()) {
+    // Use features from property to build InstructionSetFeatures and check against build's
+    // features.
+    std::string error_msg;
+    std::unique_ptr<const InstructionSetFeatures> property_features(
+        InstructionSetFeatures::FromVariant(kRuntimeISA, dex2oat_isa_variant, &error_msg));
+    ASSERT_TRUE(property_features.get() != nullptr) << error_msg;
+
+    EXPECT_TRUE(property_features->HasAtLeast(instruction_set_features.get()))
+      << "System property features: " << *property_features.get()
+      << "\nFeatures from build: " << *instruction_set_features.get();
+  }
+}
+
+#if defined(__aarch64__)
+TEST(InstructionSetFeaturesTest, DISABLED_FeaturesFromSystemPropertyString) {
+  LOG(WARNING) << "Test disabled due to no CPP define for A53 erratum 835769";
+#else
+TEST(InstructionSetFeaturesTest, FeaturesFromSystemPropertyString) {
+#endif
+  // Take the default set of instruction features from the build.
+  std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
+      InstructionSetFeatures::FromCppDefines());
+
+  // Read the variant property.
+  std::string variant_key = StringPrintf("dalvik.vm.isa.%s.variant",
+                                         GetInstructionSetString(kRuntimeISA));
+  std::string dex2oat_isa_variant = android::base::GetProperty(variant_key, "");
+  if (!dex2oat_isa_variant.empty()) {
+    // Read the features property.
+    std::string features_key = StringPrintf("dalvik.vm.isa.%s.features",
+                                            GetInstructionSetString(kRuntimeISA));
+    std::string dex2oat_isa_features = android::base::GetProperty(features_key, "");
+    if (!dex2oat_isa_features.empty()) {
+      // Use features from property to build InstructionSetFeatures and check against build's
+      // features.
+      std::string error_msg;
+      std::unique_ptr<const InstructionSetFeatures> base_features(
+          InstructionSetFeatures::FromVariant(kRuntimeISA, dex2oat_isa_variant, &error_msg));
+      ASSERT_TRUE(base_features.get() != nullptr) << error_msg;
+
+      std::unique_ptr<const InstructionSetFeatures> property_features(
+          base_features->AddFeaturesFromString(dex2oat_isa_features, &error_msg));
+      ASSERT_TRUE(property_features.get() != nullptr) << error_msg;
+
+      EXPECT_TRUE(property_features->HasAtLeast(instruction_set_features.get()))
+      << "System property features: " << *property_features.get()
+      << "\nFeatures from build: " << *instruction_set_features.get();
+    }
+  }
+}
+
+#if defined(__arm__)
+TEST(InstructionSetFeaturesTest, DISABLED_FeaturesFromCpuInfo) {
+  LOG(WARNING) << "Test disabled due to buggy ARM kernels";
+#else
+TEST(InstructionSetFeaturesTest, FeaturesFromCpuInfo) {
+#endif
+  // Take the default set of instruction features from the build.
+  std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
+      InstructionSetFeatures::FromCppDefines());
+
+  // Check we get the same instruction set features using /proc/cpuinfo.
+  std::unique_ptr<const InstructionSetFeatures> cpuinfo_features(
+      InstructionSetFeatures::FromCpuInfo());
+  EXPECT_TRUE(cpuinfo_features->HasAtLeast(instruction_set_features.get()))
+      << "CPU Info features: " << *cpuinfo_features.get()
+      << "\nFeatures from build: " << *instruction_set_features.get();
+}
+#endif
+
+#ifndef ART_TARGET_ANDROID
+TEST(InstructionSetFeaturesTest, HostFeaturesFromCppDefines) {
+  std::string error_msg;
+  std::unique_ptr<const InstructionSetFeatures> default_features(
+      InstructionSetFeatures::FromVariant(kRuntimeISA, "default", &error_msg));
+  ASSERT_TRUE(error_msg.empty());
+
+  std::unique_ptr<const InstructionSetFeatures> cpp_features(
+      InstructionSetFeatures::FromCppDefines());
+  EXPECT_TRUE(cpp_features->HasAtLeast(default_features.get()))
+      << "Default variant features: " << *default_features.get()
+      << "\nFeatures from build: " << *cpp_features.get();
+}
+#endif
+
+#if defined(__arm__)
+TEST(InstructionSetFeaturesTest, DISABLED_FeaturesFromHwcap) {
+  LOG(WARNING) << "Test disabled due to buggy ARM kernels";
+#else
+TEST(InstructionSetFeaturesTest, FeaturesFromHwcap) {
+#endif
+  // Take the default set of instruction features from the build.
+  std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
+      InstructionSetFeatures::FromCppDefines());
+
+  // Check we get the same instruction set features using AT_HWCAP.
+  std::unique_ptr<const InstructionSetFeatures> hwcap_features(
+      InstructionSetFeatures::FromHwcap());
+  EXPECT_TRUE(hwcap_features->HasAtLeast(instruction_set_features.get()))
+      << "Hwcap features: " << *hwcap_features.get()
+      << "\nFeatures from build: " << *instruction_set_features.get();
+}
+
+TEST(InstructionSetFeaturesTest, FeaturesFromAssembly) {
+  // Take the default set of instruction features from the build.
+  std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
+      InstructionSetFeatures::FromCppDefines());
+
+  // Check we get the same instruction set features using assembly tests.
+  std::unique_ptr<const InstructionSetFeatures> assembly_features(
+      InstructionSetFeatures::FromAssembly());
+  EXPECT_TRUE(assembly_features->HasAtLeast(instruction_set_features.get()))
+      << "Assembly features: " << *assembly_features.get()
+      << "\nFeatures from build: " << *instruction_set_features.get();
+}
+
+}  // namespace art