1 /*
2 * Copyright (C) 2010 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 <cpu-features.h>
18 #include <jni.h>
19 #include <string.h>
20 #include <sys/auxv.h>
21 #include <sys/utsname.h>
22
23 #include <string>
24
android_cts_CpuFeatures_isArmCpu(JNIEnv * env,jobject thiz)25 jboolean android_cts_CpuFeatures_isArmCpu(JNIEnv* env, jobject thiz)
26 {
27 AndroidCpuFamily cpuFamily = android_getCpuFamily();
28 return cpuFamily == ANDROID_CPU_FAMILY_ARM;
29 }
30
android_cts_CpuFeatures_isX86Cpu(JNIEnv * env,jobject thiz)31 jboolean android_cts_CpuFeatures_isX86Cpu(JNIEnv* env, jobject thiz)
32 {
33 AndroidCpuFamily cpuFamily = android_getCpuFamily();
34 return cpuFamily == ANDROID_CPU_FAMILY_X86;
35 }
36
android_cts_CpuFeatures_isArm64Cpu(JNIEnv * env,jobject thiz)37 jboolean android_cts_CpuFeatures_isArm64Cpu(JNIEnv* env, jobject thiz)
38 {
39 AndroidCpuFamily cpuFamily = android_getCpuFamily();
40 return cpuFamily == ANDROID_CPU_FAMILY_ARM64;
41 }
42
android_cts_CpuFeatures_isX86_64Cpu(JNIEnv * env,jobject thiz)43 jboolean android_cts_CpuFeatures_isX86_64Cpu(JNIEnv* env, jobject thiz)
44 {
45 AndroidCpuFamily cpuFamily = android_getCpuFamily();
46 return cpuFamily == ANDROID_CPU_FAMILY_X86_64;
47 }
48
android_cts_CpuFeatures_getHwCaps(JNIEnv *,jobject)49 jint android_cts_CpuFeatures_getHwCaps(JNIEnv*, jobject)
50 {
51 return (jint)getauxval(AT_HWCAP);
52 }
53
android_cts_CpuFeatures_isNativeBridgedCpu(JNIEnv * env,jobject thiz)54 jboolean android_cts_CpuFeatures_isNativeBridgedCpu(JNIEnv* env, jobject thiz)
55 {
56 #if defined(__arm__) || defined(__aarch64__)
57 // If the test is compiled for arm use uname() to check if host CPU is x86.
58 struct utsname uname_data;
59 uname(&uname_data);
60 std::string machine = uname_data.machine;
61 // Matches all of i386, i686 and x86_64.
62 return machine.find("86") != std::string::npos;
63 #else
64 return false;
65 #endif
66 }
67
68 static JNINativeMethod gMethods[] = {
69 { "isArmCpu", "()Z",
70 (void *) android_cts_CpuFeatures_isArmCpu },
71 { "isX86Cpu", "()Z",
72 (void *) android_cts_CpuFeatures_isX86Cpu },
73 { "isArm64Cpu", "()Z",
74 (void *) android_cts_CpuFeatures_isArm64Cpu },
75 { "isX86_64Cpu", "()Z",
76 (void *) android_cts_CpuFeatures_isX86_64Cpu },
77 { "getHwCaps", "()I",
78 (void *) android_cts_CpuFeatures_getHwCaps },
79 { "isNativeBridgedCpu", "()Z",
80 (void *) android_cts_CpuFeatures_isNativeBridgedCpu },
81 };
82
register_android_cts_CpuFeatures(JNIEnv * env)83 int register_android_cts_CpuFeatures(JNIEnv* env)
84 {
85 jclass clazz = env->FindClass("com/android/compatibility/common/util/CpuFeatures");
86
87 return env->RegisterNatives(clazz, gMethods,
88 sizeof(gMethods) / sizeof(JNINativeMethod));
89 }
90