1 /*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "instruction_set_features.h"
18
19 #include <gtest/gtest.h>
20
21 #ifdef ART_TARGET_ANDROID
22 #include <android-base/properties.h>
23 #endif
24
25 #include <android-base/logging.h>
26 #include <android-base/stringprintf.h>
27
28 namespace art {
29
30 using android::base::StringPrintf;
31
32 #ifdef ART_TARGET_ANDROID
33 #if defined(__aarch64__)
TEST(InstructionSetFeaturesTest,DISABLED_FeaturesFromSystemPropertyVariant)34 TEST(InstructionSetFeaturesTest, DISABLED_FeaturesFromSystemPropertyVariant) {
35 LOG(WARNING) << "Test disabled due to no CPP define for A53 erratum 835769";
36 #else
37 TEST(InstructionSetFeaturesTest, FeaturesFromSystemPropertyVariant) {
38 #endif
39 // Take the default set of instruction features from the build.
40 std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
41 InstructionSetFeatures::FromCppDefines());
42
43 // Read the variant property.
44 std::string key = StringPrintf("dalvik.vm.isa.%s.variant", GetInstructionSetString(kRuntimeISA));
45 std::string dex2oat_isa_variant = android::base::GetProperty(key, "");
46 if (!dex2oat_isa_variant.empty()) {
47 // Use features from property to build InstructionSetFeatures and check against build's
48 // features.
49 std::string error_msg;
50 std::unique_ptr<const InstructionSetFeatures> property_features(
51 InstructionSetFeatures::FromVariant(kRuntimeISA, dex2oat_isa_variant, &error_msg));
52 ASSERT_TRUE(property_features.get() != nullptr) << error_msg;
53
54 EXPECT_TRUE(property_features->HasAtLeast(instruction_set_features.get()))
55 << "System property features: " << *property_features.get()
56 << "\nFeatures from build: " << *instruction_set_features.get();
57 }
58 }
59
60 #if defined(__aarch64__)
61 TEST(InstructionSetFeaturesTest, DISABLED_FeaturesFromSystemPropertyString) {
62 LOG(WARNING) << "Test disabled due to no CPP define for A53 erratum 835769";
63 #else
64 TEST(InstructionSetFeaturesTest, FeaturesFromSystemPropertyString) {
65 #endif
66 // Take the default set of instruction features from the build.
67 std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
68 InstructionSetFeatures::FromCppDefines());
69
70 // Read the variant property.
71 std::string variant_key = StringPrintf("dalvik.vm.isa.%s.variant",
72 GetInstructionSetString(kRuntimeISA));
73 std::string dex2oat_isa_variant = android::base::GetProperty(variant_key, "");
74 if (!dex2oat_isa_variant.empty()) {
75 // Read the features property.
76 std::string features_key = StringPrintf("dalvik.vm.isa.%s.features",
77 GetInstructionSetString(kRuntimeISA));
78 std::string dex2oat_isa_features = android::base::GetProperty(features_key, "");
79 if (!dex2oat_isa_features.empty()) {
80 // Use features from property to build InstructionSetFeatures and check against build's
81 // features.
82 std::string error_msg;
83 std::unique_ptr<const InstructionSetFeatures> base_features(
84 InstructionSetFeatures::FromVariant(kRuntimeISA, dex2oat_isa_variant, &error_msg));
85 ASSERT_TRUE(base_features.get() != nullptr) << error_msg;
86
87 std::unique_ptr<const InstructionSetFeatures> property_features(
88 base_features->AddFeaturesFromString(dex2oat_isa_features, &error_msg));
89 ASSERT_TRUE(property_features.get() != nullptr) << error_msg;
90
91 EXPECT_TRUE(property_features->HasAtLeast(instruction_set_features.get()))
92 << "System property features: " << *property_features.get()
93 << "\nFeatures from build: " << *instruction_set_features.get();
94 }
95 }
96 }
97
98 #if defined(__arm__)
99 TEST(InstructionSetFeaturesTest, DISABLED_FeaturesFromCpuInfo) {
100 LOG(WARNING) << "Test disabled due to buggy ARM kernels";
101 #else
102 TEST(InstructionSetFeaturesTest, FeaturesFromCpuInfo) {
103 #endif
104 // Take the default set of instruction features from the build.
105 std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
106 InstructionSetFeatures::FromCppDefines());
107
108 // Check we get the same instruction set features using /proc/cpuinfo.
109 std::unique_ptr<const InstructionSetFeatures> cpuinfo_features(
110 InstructionSetFeatures::FromCpuInfo());
111 EXPECT_TRUE(cpuinfo_features->HasAtLeast(instruction_set_features.get()))
112 << "CPU Info features: " << *cpuinfo_features.get()
113 << "\nFeatures from build: " << *instruction_set_features.get();
114 }
115 #endif
116
117 #ifndef ART_TARGET_ANDROID
118 TEST(InstructionSetFeaturesTest, HostFeaturesFromCppDefines) {
119 std::string error_msg;
120 std::unique_ptr<const InstructionSetFeatures> default_features(
121 InstructionSetFeatures::FromVariant(kRuntimeISA, "default", &error_msg));
122 ASSERT_TRUE(error_msg.empty());
123
124 std::unique_ptr<const InstructionSetFeatures> cpp_features(
125 InstructionSetFeatures::FromCppDefines());
126 EXPECT_TRUE(cpp_features->HasAtLeast(default_features.get()))
127 << "Default variant features: " << *default_features.get()
128 << "\nFeatures from build: " << *cpp_features.get();
129 }
130 #endif
131
132 #if defined(__arm__)
133 TEST(InstructionSetFeaturesTest, DISABLED_FeaturesFromHwcap) {
134 LOG(WARNING) << "Test disabled due to buggy ARM kernels";
135 #else
136 TEST(InstructionSetFeaturesTest, FeaturesFromHwcap) {
137 #endif
138 // Take the default set of instruction features from the build.
139 std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
140 InstructionSetFeatures::FromCppDefines());
141
142 // Check we get the same instruction set features using AT_HWCAP.
143 std::unique_ptr<const InstructionSetFeatures> hwcap_features(
144 InstructionSetFeatures::FromHwcap());
145 EXPECT_TRUE(hwcap_features->HasAtLeast(instruction_set_features.get()))
146 << "Hwcap features: " << *hwcap_features.get()
147 << "\nFeatures from build: " << *instruction_set_features.get();
148 }
149
150 TEST(InstructionSetFeaturesTest, FeaturesFromAssembly) {
151 // Take the default set of instruction features from the build.
152 std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
153 InstructionSetFeatures::FromCppDefines());
154
155 // Check we get the same instruction set features using assembly tests.
156 std::unique_ptr<const InstructionSetFeatures> assembly_features(
157 InstructionSetFeatures::FromAssembly());
158 EXPECT_TRUE(assembly_features->HasAtLeast(instruction_set_features.get()))
159 << "Assembly features: " << *assembly_features.get()
160 << "\nFeatures from build: " << *instruction_set_features.get();
161 }
162
163 } // namespace art
164