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 package com.android.compatibility.common.util;
18 
19 import android.os.Build;
20 
21 public class CpuFeatures {
22 
23     public static final String ARMEABI_V7 = "armeabi-v7a";
24 
25     public static final String ARMEABI = "armeabi";
26 
27     public static final String MIPSABI = "mips";
28 
29     public static final  String X86ABI = "x86";
30 
31     public static final int HWCAP_VFP = (1 << 6);
32 
33     public static final int HWCAP_NEON = (1 << 12);
34 
35     public static final int HWCAP_VFPv3 = (1 << 13);
36 
37     public static final int HWCAP_VFPv4 = (1 << 16);
38 
39     public static final int HWCAP_IDIVA = (1 << 17);
40 
41     public static final int HWCAP_IDIVT = (1 << 18);
42 
43     static {
44         System.loadLibrary("cts_jni");
45     }
46 
isArmCpu()47     public static native boolean isArmCpu();
48 
isArm7Compatible()49     public static native boolean isArm7Compatible();
50 
isMipsCpu()51     public static native boolean isMipsCpu();
52 
isX86Cpu()53     public static native boolean isX86Cpu();
54 
isArm64Cpu()55     public static native boolean isArm64Cpu();
56 
isMips64Cpu()57     public static native boolean isMips64Cpu();
58 
isX86_64Cpu()59     public static native boolean isX86_64Cpu();
60 
getHwCaps()61     public static native int getHwCaps();
62 
isArm64CpuIn32BitMode()63     public static boolean isArm64CpuIn32BitMode() {
64         if (!isArmCpu()) {
65             return false;
66         }
67 
68         for (String abi : Build.SUPPORTED_64_BIT_ABIS) {
69             if (abi.equals("arm64-v8a")) {
70                 return true;
71             }
72         }
73 
74         return false;
75     }
76 }
77