Fyodor Kupolov | 7487657 | 2015-02-23 17:14:45 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 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.server.pm; |
| 18 | |
| 19 | import android.content.pm.ApplicationInfo; |
| 20 | import android.os.Build; |
| 21 | import android.os.SystemProperties; |
| 22 | import android.text.TextUtils; |
| 23 | import android.util.ArraySet; |
| 24 | |
| 25 | import java.util.ArrayList; |
| 26 | import java.util.List; |
| 27 | |
| 28 | import dalvik.system.VMRuntime; |
| 29 | |
| 30 | /** |
| 31 | * Provides various methods for obtaining and converting of instruction sets. |
| 32 | * |
| 33 | * @hide |
| 34 | */ |
| 35 | public class InstructionSets { |
| 36 | private static final String PREFERRED_INSTRUCTION_SET = |
Calin Juravle | 3d2af7f | 2017-04-19 19:56:21 -0700 | [diff] [blame] | 37 | VMRuntime.getInstructionSet(Build.SUPPORTED_ABIS[0]); |
Fyodor Kupolov | 7487657 | 2015-02-23 17:14:45 -0800 | [diff] [blame] | 38 | public static String[] getAppDexInstructionSets(ApplicationInfo info) { |
| 39 | if (info.primaryCpuAbi != null) { |
| 40 | if (info.secondaryCpuAbi != null) { |
| 41 | return new String[] { |
| 42 | VMRuntime.getInstructionSet(info.primaryCpuAbi), |
| 43 | VMRuntime.getInstructionSet(info.secondaryCpuAbi) }; |
| 44 | } else { |
| 45 | return new String[] { |
| 46 | VMRuntime.getInstructionSet(info.primaryCpuAbi) }; |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | return new String[] { getPreferredInstructionSet() }; |
| 51 | } |
| 52 | |
| 53 | public static String[] getAppDexInstructionSets(PackageSetting ps) { |
| 54 | if (ps.primaryCpuAbiString != null) { |
| 55 | if (ps.secondaryCpuAbiString != null) { |
| 56 | return new String[] { |
| 57 | VMRuntime.getInstructionSet(ps.primaryCpuAbiString), |
| 58 | VMRuntime.getInstructionSet(ps.secondaryCpuAbiString) }; |
| 59 | } else { |
| 60 | return new String[] { |
| 61 | VMRuntime.getInstructionSet(ps.primaryCpuAbiString) }; |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | return new String[] { getPreferredInstructionSet() }; |
| 66 | } |
| 67 | |
| 68 | public static String getPreferredInstructionSet() { |
| 69 | return PREFERRED_INSTRUCTION_SET; |
| 70 | } |
| 71 | |
| 72 | /** |
| 73 | * Returns the instruction set that should be used to compile dex code. In the presence of |
| 74 | * a native bridge this might be different than the one shared libraries use. |
| 75 | */ |
| 76 | public static String getDexCodeInstructionSet(String sharedLibraryIsa) { |
Fyodor Kupolov | b94c165 | 2015-03-03 12:25:30 -0800 | [diff] [blame] | 77 | // TODO b/19550105 Build mapping once instead of querying each time |
Fyodor Kupolov | 7487657 | 2015-02-23 17:14:45 -0800 | [diff] [blame] | 78 | String dexCodeIsa = SystemProperties.get("ro.dalvik.vm.isa." + sharedLibraryIsa); |
| 79 | return TextUtils.isEmpty(dexCodeIsa) ? sharedLibraryIsa : dexCodeIsa; |
| 80 | } |
| 81 | |
| 82 | public static String[] getDexCodeInstructionSets(String[] instructionSets) { |
| 83 | ArraySet<String> dexCodeInstructionSets = new ArraySet<String>(instructionSets.length); |
| 84 | for (String instructionSet : instructionSets) { |
| 85 | dexCodeInstructionSets.add(getDexCodeInstructionSet(instructionSet)); |
| 86 | } |
| 87 | return dexCodeInstructionSets.toArray(new String[dexCodeInstructionSets.size()]); |
| 88 | } |
| 89 | |
| 90 | /** |
| 91 | * Returns deduplicated list of supported instructions for dex code. |
| 92 | */ |
| 93 | public static String[] getAllDexCodeInstructionSets() { |
| 94 | String[] supportedInstructionSets = new String[Build.SUPPORTED_ABIS.length]; |
| 95 | for (int i = 0; i < supportedInstructionSets.length; i++) { |
| 96 | String abi = Build.SUPPORTED_ABIS[i]; |
| 97 | supportedInstructionSets[i] = VMRuntime.getInstructionSet(abi); |
| 98 | } |
| 99 | return getDexCodeInstructionSets(supportedInstructionSets); |
| 100 | } |
| 101 | |
| 102 | public static List<String> getAllInstructionSets() { |
| 103 | final String[] allAbis = Build.SUPPORTED_ABIS; |
| 104 | final List<String> allInstructionSets = new ArrayList<String>(allAbis.length); |
| 105 | |
| 106 | for (String abi : allAbis) { |
| 107 | final String instructionSet = VMRuntime.getInstructionSet(abi); |
| 108 | if (!allInstructionSets.contains(instructionSet)) { |
| 109 | allInstructionSets.add(instructionSet); |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | return allInstructionSets; |
| 114 | } |
Fyodor Kupolov | b94c165 | 2015-03-03 12:25:30 -0800 | [diff] [blame] | 115 | |
| 116 | public static String getPrimaryInstructionSet(ApplicationInfo info) { |
| 117 | if (info.primaryCpuAbi == null) { |
| 118 | return getPreferredInstructionSet(); |
| 119 | } |
| 120 | |
| 121 | return VMRuntime.getInstructionSet(info.primaryCpuAbi); |
| 122 | } |
| 123 | |
Fyodor Kupolov | 7487657 | 2015-02-23 17:14:45 -0800 | [diff] [blame] | 124 | } |