├── .gitignore ├── .idea ├── checkstyle-idea.xml ├── codeStyles │ └── Project.xml ├── compiler.xml ├── copyright │ ├── Baidu.xml │ └── profiles_settings.xml ├── encodings.xml ├── google-java-format.xml ├── misc.xml ├── modules.xml ├── runConfigurations.xml └── vcs.xml ├── LICENSE ├── README.md ├── Screenshot.png ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── dodola │ │ └── jvmti │ │ └── ExampleInstrumentedTest.java │ ├── main │ ├── AndroidManifest.xml │ ├── java │ │ └── com │ │ │ └── dodola │ │ │ └── jvmti │ │ │ ├── Main2Activity.java │ │ │ └── MainActivity.java │ └── res │ │ ├── drawable-v24 │ │ └── ic_launcher_foreground.xml │ │ ├── drawable │ │ └── ic_launcher_background.xml │ │ ├── layout │ │ ├── activity_main.xml │ │ └── activity_main2.xml │ │ ├── mipmap-anydpi-v26 │ │ ├── ic_launcher.xml │ │ └── ic_launcher_round.xml │ │ ├── mipmap-hdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-mdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxxhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ └── values │ │ ├── colors.xml │ │ ├── strings.xml │ │ └── styles.xml │ └── test │ └── java │ └── com │ └── dodola │ └── jvmti │ └── ExampleUnitTest.java ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── jvmtilib ├── .gitignore ├── CMakeLists.txt ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── dodola │ │ └── jvmtilib │ │ └── ExampleInstrumentedTest.java │ ├── main │ ├── AndroidManifest.xml │ ├── cpp │ │ ├── dexer │ │ │ ├── Android.bp │ │ │ ├── bytecode_encoder.cc │ │ │ ├── code_ir.cc │ │ │ ├── common.cc │ │ │ ├── control_flow_graph.cc │ │ │ ├── debuginfo_encoder.cc │ │ │ ├── dex_bytecode.cc │ │ │ ├── dex_format.cc │ │ │ ├── dex_ir.cc │ │ │ ├── dex_ir_builder.cc │ │ │ ├── dex_utf8.cc │ │ │ ├── instrumentation.cc │ │ │ ├── reader.cc │ │ │ ├── slicer │ │ │ │ ├── arrayview.h │ │ │ │ ├── buffer.h │ │ │ │ ├── bytecode_encoder.h │ │ │ │ ├── chronometer.h │ │ │ │ ├── code_ir.h │ │ │ │ ├── common.h │ │ │ │ ├── control_flow_graph.h │ │ │ │ ├── debuginfo_encoder.h │ │ │ │ ├── dex_bytecode.h │ │ │ │ ├── dex_format.h │ │ │ │ ├── dex_ir.h │ │ │ │ ├── dex_ir_builder.h │ │ │ │ ├── dex_leb128.h │ │ │ │ ├── dex_utf8.h │ │ │ │ ├── hash_table.h │ │ │ │ ├── index_map.h │ │ │ │ ├── instrumentation.h │ │ │ │ ├── intrusive_list.h │ │ │ │ ├── memview.h │ │ │ │ ├── reader.h │ │ │ │ ├── scopeguard.h │ │ │ │ ├── tryblocks_encoder.h │ │ │ │ └── writer.h │ │ │ ├── tryblocks_encoder.cc │ │ │ └── writer.cc │ │ ├── jvmti.h │ │ └── native-lib.cpp │ ├── java │ │ └── com │ │ │ └── dodola │ │ │ └── jvmtilib │ │ │ └── JVMTIHelper.java │ └── res │ │ └── values │ │ └── strings.xml │ └── test │ └── java │ └── com │ └── dodola │ └── jvmtilib │ └── ExampleUnitTest.java └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | # Built application files 2 | *.apk 3 | *.ap_ 4 | 5 | # Files for the ART/Dalvik VM 6 | *.dex 7 | 8 | # Java class files 9 | *.class 10 | 11 | # Generated files 12 | bin/ 13 | gen/ 14 | out/ 15 | 16 | # Gradle files 17 | .gradle/ 18 | build/ 19 | 20 | # Local configuration file (sdk path, etc) 21 | local.properties 22 | 23 | # Proguard folder generated by Eclipse 24 | proguard/ 25 | 26 | # Log Files 27 | *.log 28 | 29 | # Android Studio Navigation editor temp files 30 | .navigation/ 31 | 32 | # Android Studio captures folder 33 | captures/ 34 | 35 | # IntelliJ 36 | *.iml 37 | .idea/workspace.xml 38 | .idea/tasks.xml 39 | .idea/gradle.xml 40 | .idea/assetWizardSettings.xml 41 | .idea/dictionaries 42 | .idea/libraries 43 | .idea/caches 44 | 45 | # Keystore files 46 | # Uncomment the following line if you do not want to check your keystore files in. 47 | #*.jks 48 | 49 | # External native build folder generated in Android Studio 2.2 and later 50 | .externalNativeBuild 51 | 52 | # Google Services (e.g. APIs or Firebase) 53 | google-services.json 54 | 55 | # Freeline 56 | freeline.py 57 | freeline/ 58 | freeline_project_description.json 59 | 60 | # fastlane 61 | fastlane/report.xml 62 | fastlane/Preview.html 63 | fastlane/screenshots 64 | fastlane/test_output 65 | fastlane/readme.md 66 | -------------------------------------------------------------------------------- /.idea/checkstyle-idea.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 15 | 16 | -------------------------------------------------------------------------------- /.idea/codeStyles/Project.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 15 | 16 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | -------------------------------------------------------------------------------- /.idea/compiler.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | -------------------------------------------------------------------------------- /.idea/copyright/Baidu.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 9 | -------------------------------------------------------------------------------- /.idea/copyright/profiles_settings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 6 | 7 | -------------------------------------------------------------------------------- /.idea/encodings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /.idea/google-java-format.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 6 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 14 | 15 | 16 | 31 | 43 | 44 | 45 | 46 | 47 | 48 | 50 | -------------------------------------------------------------------------------- /.idea/modules.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | -------------------------------------------------------------------------------- /.idea/runConfigurations.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 11 | 12 | -------------------------------------------------------------------------------- /.idea/vcs.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2018 Android Advance With Geektime 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # JVMTI_Sample 2 | 3 | 该例子主要展示了JVM TI支持的几种功能： 4 | 5 | 1. Memory Alloc Tracker 6 | 2. GC Event Tracker 7 | 3. JNI Method Rebind 8 | 4. Class Retransform 9 | 10 | 注意：例子最好在9.0上测试，支持模拟器，8.0下修改 Class 功能无效 11 | 12 | 运行界面 13 | ====== 14 | 15 | ![](Screenshot.png) 16 | 17 | 产生的日志可以在 Logcat 中查看 18 | 19 | ``` 20 | I/jvmti: ==========alloc callback======= [I {size:32} 21 | I/jvmti: ==========alloc callback======= java.lang.ref.WeakReference {size:24} 22 | I/jvmti: ==========alloc callback======= java.lang.ref.WeakReference {size:24} 23 | I/jvmti: ==========alloc callback======= [Ljava.lang.Object; {size:16} 24 | I/jvmti: ==========触发 GCStart======= 25 | I/jvmti: ==========触发 GCFinish======= 26 | ``` -------------------------------------------------------------------------------- /Screenshot.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/AndroidAdvanceWithGeektime/JVMTI_Sample/3d0213160f49132706c134f7c059b3fe3e7d826d/Screenshot.png -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 28 5 | defaultConfig { 6 | applicationId "com.dodola.jvmti" 7 | minSdkVersion 14 8 | targetSdkVersion 28 9 | versionCode 1 10 | versionName "1.0" 11 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 12 | 13 | } 14 | buildTypes { 15 | release { 16 | minifyEnabled false 17 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 18 | } 19 | } 20 | 21 | } 22 | 23 | dependencies { 24 | implementation fileTree(include: ['*.jar'], dir: 'libs') 25 | implementation 'com.android.support.constraint:constraint-layout:1.1.3' 26 | testImplementation 'junit:junit:4.12' 27 | androidTestImplementation 'com.android.support.test:runner:1.0.2' 28 | androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2' 29 | implementation project(':jvmtilib') 30 | } 31 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile 22 | -------------------------------------------------------------------------------- /app/src/androidTest/java/com/dodola/jvmti/ExampleInstrumentedTest.java: -------------------------------------------------------------------------------- 1 | package com.dodola.jvmti; 2 | 3 | import android.content.Context; 4 | import android.support.test.InstrumentationRegistry; 5 | import android.support.test.runner.AndroidJUnit4; 6 | 7 | import org.junit.Test; 8 | import org.junit.runner.RunWith; 9 | 10 | import static org.junit.Assert.*; 11 | 12 | /** 13 | * Instrumented test, which will execute on an Android device. 14 | * 15 | * @see Testing documentation 16 | */ 17 | @RunWith(AndroidJUnit4.class) 18 | public class ExampleInstrumentedTest { 19 | @Test 20 | public void useAppContext() { 21 | // Context of the app under test. 22 | Context appContext = InstrumentationRegistry.getTargetContext(); 23 | 24 | assertEquals("com.dodola.jvmti", appContext.getPackageName()); 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 22 | 23 | 24 | -------------------------------------------------------------------------------- /app/src/main/java/com/dodola/jvmti/Main2Activity.java: -------------------------------------------------------------------------------- 1 | package com.dodola.jvmti; 2 | 3 | import android.os.Bundle; 4 | import android.app.Activity; 5 | 6 | public class Main2Activity extends Activity { 7 | 8 | @Override 9 | protected void onCreate(Bundle savedInstanceState) { 10 | super.onCreate(savedInstanceState); 11 | setContentView(R.layout.activity_main2); 12 | } 13 | 14 | } 15 | -------------------------------------------------------------------------------- /app/src/main/java/com/dodola/jvmti/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.dodola.jvmti; 2 | 3 | import android.app.Activity; 4 | import android.content.Intent; 5 | import android.os.Bundle; 6 | import android.view.View; 7 | import android.widget.Button; 8 | 9 | import com.dodola.jvmtilib.JVMTIHelper; 10 | 11 | public class MainActivity extends Activity { 12 | 13 | @Override 14 | protected void onCreate(Bundle savedInstanceState) { 15 | super.onCreate(savedInstanceState); 16 | setContentView(R.layout.activity_main); 17 | 18 | Button tv = findViewById(R.id.sample_text); 19 | tv.setOnClickListener(new View.OnClickListener() { 20 | @Override 21 | public void onClick(View v) { 22 | JVMTIHelper.init(MainActivity.this); 23 | } 24 | }); 25 | findViewById(R.id.button_gc).setOnClickListener(new View.OnClickListener() { 26 | @Override 27 | public void onClick(View v) { 28 | System.gc(); 29 | System.runFinalization(); 30 | } 31 | }); 32 | findViewById(R.id.button_modify_class).setOnClickListener(new View.OnClickListener() { 33 | @Override 34 | public void onClick(View v) { 35 | JVMTIHelper.retransformClasses(new Class[]{Activity.class}); 36 | } 37 | }); 38 | findViewById(R.id.button_start_activity).setOnClickListener(new View.OnClickListener() { 39 | @Override 40 | public void onClick(View v) { 41 | startActivity(new Intent(MainActivity.this, Main2Activity.class)); 42 | } 43 | }); 44 | } 45 | 46 | } 47 | 48 | -------------------------------------------------------------------------------- /app/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 7 | 12 | 13 | 19 | 22 | 25 | 26 | 27 | 28 | 34 | 35 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_launcher_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 | 135 | 140 | 145 | 150 | 155 | 160 | 165 | 170 | 171 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 8 | 9 |