├── .gitignore
├── AndroidManifest.xml
├── README.md
├── ic_launcher-web.png
├── jni
    ├── Android.mk
    ├── LinearAllocFix.c
    └── LinearAllocFix.h
├── libs
    └── armeabi
    │   └── liblinear-alloc-fix.so
├── proguard-project.txt
├── project.properties
├── res
    ├── drawable-hdpi
    │   └── ic_launcher.png
    ├── drawable-mdpi
    │   └── ic_launcher.png
    ├── drawable-xhdpi
    │   └── ic_launcher.png
    ├── drawable-xxhdpi
    │   └── ic_launcher.png
    ├── layout
    │   └── activity_main.xml
    └── values
    │   ├── dimens.xml
    │   ├── strings.xml
    │   └── styles.xml
└── src
    └── info
        └── viila
            └── android
                └── linearallocfix
                    ├── app
                        └── LinearAllocFixApplication.java
                    ├── lib
                        ├── LinearAllocFix.class
                        └── LinearAllocFix.java
                    └── ui
                        └── MainActivity.java


/.gitignore:
--------------------------------------------------------------------------------
 1 | .classpath
 2 | .git
 3 | .idea
 4 | .project
 5 | .settings
 6 | bin
 7 | gen
 8 | obj
 9 | *.iml
10 | 


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/AndroidManifest.xml:
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 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     package="info.viila.android.linearallocfix.ui"
 4 |     android:versionCode="1"
 5 |     android:versionName="1.0" >
 6 | 
 7 |     <uses-sdk
 8 |         android:minSdkVersion="8"
 9 |         android:targetSdkVersion="18" />
10 | 
11 |     <application
12 |         android:name="info.viila.android.linearallocfix.app.LinearAllocFixApplication"
13 |         android:allowBackup="true"
14 |         android:icon="@drawable/ic_launcher"
15 |         android:label="@string/app_name"
16 |         android:theme="@style/AppTheme" >
17 |         <activity
18 |             android:name=".MainActivity"
19 |             android:label="@string/app_name" >
20 |             <intent-filter>
21 |                 <action android:name="android.intent.action.MAIN" />
22 | 
23 |                 <category android:name="android.intent.category.LAUNCHER" />
24 |             </intent-filter>
25 |         </activity>
26 |     </application>
27 | 
28 | </manifest>
29 | 


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/README.md:
--------------------------------------------------------------------------------
 1 | ## Hack Dalvik VM解决Android 2.3 DEX/LinearAllocHdr超限 ##
 2 | 
 3 | [link to my blog](http://viila.info/2014/04/android-2-3-dex-max-function-problem/)
 4 | 
 5 | 配合[APKCounter](https://github.com/viilaismonster/ApkFuncCounter)使用更佳
 6 | 
 7 | 当安卓工程庞大到一定程度（代码结构渣到一定程度）的时候，就会遇到诸如最大方法数超过限制导致无法安装，Crash等问题。
 8 | 
 9 | 相关关键词：Android 2.3 INSTALL_FAILED_DEXOPT 65535
10 | 


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/ic_launcher-web.png:
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https://raw.githubusercontent.com/viilaismonster/LinearAllocFix/e496534773a38647e741f6ec4841fd32470d2fb1/ic_launcher-web.png


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/jni/Android.mk:
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 1 | LOCAL_PATH := $(call my-dir)
 2 | 
 3 | include $(CLEAR_VARS)
 4 | 
 5 | LOCAL_MODULE    := linear-alloc-fix
 6 | LOCAL_SRC_FILES := LinearAllocFix.c
 7 | 
 8 | LOCAL_LDLIBS := -ldl -llog
 9 | 
10 | include $(BUILD_SHARED_LIBRARY)


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/jni/LinearAllocFix.c:
--------------------------------------------------------------------------------
  1 | #include <pthread.h>
  2 | #include "LinearAllocFix.h"
  3 | #include <android/log.h>
  4 | #include <stdio.h>
  5 | #include <sys/mman.h>
  6 | 
  7 | #define LOG_TAG "*LinearAllocFix*"
  8 | #define LOGE(...)  __android_log_print(ANDROID_LOG_ERROR,LOG_TAG,__VA_ARGS__)
  9 | #define LOGI(...)  __android_log_print(ANDROID_LOG_INFO,LOG_TAG,__VA_ARGS__)
 10 | #define MEMORY_MIN 32768
 11 | 
 12 | #define TARGET_VAL 5*1024*1024
 13 | #define HACK_VAL 8*1024*1024
 14 | 
 15 | // copy from https://github.com/android/platform_dalvik/blob/android-2.3.7_r1/vm/LinearAlloc.h#L33
 16 | typedef struct LinearAllocHdr {
 17 |     int     curOffset;          /* offset where next data goes */
 18 |     pthread_mutex_t lock;       /* controls updates to this struct */
 19 | 
 20 |     char*   mapAddr;            /* start of mmap()ed region */
 21 |     int     mapLength;          /* length of region */
 22 |     int     firstOffset;        /* for chasing through */
 23 | 
 24 |     short*  writeRefCount;      /* for ENFORCE_READ_ONLY */
 25 | } LinearAllocHdr;
 26 | 
 27 | int* hdrMapLength = NULL;
 28 | struct LinearAllocHdr* hdr = NULL;
 29 | 
 30 | jint JNI_OnLoad(JavaVM* vm, void* reserved) {
 31 | 
 32 | 	void** ptr = (void**)MEMORY_MIN;
 33 | 	char* line;
 34 | 	int max = 2*MEMORY_MIN;
 35 | 
 36 | 	while(max--) {
 37 | 		if(*ptr == (void*)vm) {
 38 | 			line = malloc(100*sizeof(char));
 39 | 			sprintf(line, "find VM %d = %d", ptr, *ptr);
 40 | 			LOGI(line);
 41 | 			free(line);
 42 | 		}
 43 | 		if(*(int*)ptr == TARGET_VAL) {
 44 | 			line = malloc(100*sizeof(char));
 45 | 			sprintf(line, "%d = %d", ptr, *ptr);
 46 | 			LOGE(line);
 47 | 			free(line);
 48 | 			hdrMapLength = (int*)ptr;
 49 | 			hdr = (void*)(ptr-3);
 50 | 			break;
 51 | 		}
 52 | 		ptr++;
 53 | 	}
 54 | 
 55 | 	if(hdr) {
 56 | 		line = malloc(100*sizeof(char));
 57 | 		sprintf(line, " hdr->curOffset=%d mapLength=%d firstOffset=%d",
 58 | 				hdr->curOffset, hdr->mapLength, hdr->firstOffset);
 59 | 		LOGI(line);
 60 | 		free(line);
 61 | 	}
 62 | 
 63 | 	return JNI_VERSION_1_4;
 64 | }
 65 | 
 66 | JNIEXPORT jlong JNICALL Java_info_viila_android_linearallocfix_lib_LinearAllocFix_current(
 67 |     JNIEnv * env,
 68 |     jobject context) {
 69 | 
 70 | 	if(!hdrMapLength)
 71 | 		return -1;
 72 | 
 73 | 	return *hdrMapLength;
 74 | }
 75 | 
 76 | JNIEXPORT jlong JNICALL Java_info_viila_android_linearallocfix_lib_LinearAllocFix_hack(
 77 |     JNIEnv * env,
 78 |     jobject context) {
 79 | 
 80 | 	if(!hdrMapLength)
 81 | 		return -1;
 82 | 
 83 | 	pthread_mutex_lock(&hdr->lock);
 84 | 
 85 | 	*hdrMapLength = HACK_VAL;
 86 | 	hdr->mapAddr = mmap(NULL, hdr->mapLength, PROT_READ | PROT_WRITE,
 87 | 	        MAP_PRIVATE | MAP_ANON, -1, 0);
 88 | 
 89 | 	pthread_mutex_unlock(&hdr->lock);
 90 | 
 91 | 	return *hdrMapLength;
 92 | }
 93 | 
 94 | 
 95 | JNIEXPORT jlong JNICALL Java_info_viila_android_linearallocfix_lib_LinearAllocFix_debug(
 96 |     JNIEnv * env,
 97 |     jobject context,
 98 |     jint offset, jint attr) {
 99 | 
100 | 	return -1;
101 | }
102 | 


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/jni/LinearAllocFix.h:
--------------------------------------------------------------------------------
 1 | /* DO NOT EDIT THIS FILE - it is machine generated */
 2 | #include <jni.h>
 3 | /* Header for class info_viila_android_linearallocfix_lib_LinearAllocFix */
 4 | 
 5 | #ifndef _Included_info_viila_android_linearallocfix_lib_LinearAllocFix
 6 | #define _Included_info_viila_android_linearallocfix_lib_LinearAllocFix
 7 | #ifdef __cplusplus
 8 | extern "C" {
 9 | #endif
10 | 
11 | /*
12 |  * Class:     info_viila_android_linearallocfix_lib_LinearAllocFix
13 |  * Method:    current
14 |  * Signature: ()I
15 |  */
16 | JNIEXPORT jlong JNICALL Java_info_viila_android_linearallocfix_lib_LinearAllocFix_current
17 |   (JNIEnv *, jobject);
18 | 
19 | /*
20 |  * Class:     info_viila_android_linearallocfix_lib_LinearAllocFix
21 |  * Method:    debug
22 |  * Signature: ()I
23 |  */
24 | JNIEXPORT jlong JNICALL Java_info_viila_android_linearallocfix_lib_LinearAllocFix_hack
25 |   (JNIEnv *, jobject);
26 | 
27 | /*
28 |  * Class:     info_viila_android_linearallocfix_lib_LinearAllocFix
29 |  * Method:    hack
30 |  * Signature: ()I
31 |  */
32 | JNIEXPORT jlong JNICALL Java_info_viila_android_linearallocfix_lib_LinearAllocFix_debug
33 |   (JNIEnv *, jobject, jint, jint);
34 | 
35 | #ifdef __cplusplus
36 | }
37 | #endif
38 | #endif
39 | 


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/libs/armeabi/liblinear-alloc-fix.so:
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https://raw.githubusercontent.com/viilaismonster/LinearAllocFix/e496534773a38647e741f6ec4841fd32470d2fb1/libs/armeabi/liblinear-alloc-fix.so


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/proguard-project.txt:
--------------------------------------------------------------------------------
 1 | # To enable ProGuard in your project, edit project.properties
 2 | # to define the proguard.config property as described in that file.
 3 | #
 4 | # Add project specific ProGuard rules here.
 5 | # By default, the flags in this file are appended to flags specified
 6 | # in ${sdk.dir}/tools/proguard/proguard-android.txt
 7 | # You can edit the include path and order by changing the ProGuard
 8 | # include property in project.properties.
 9 | #
10 | # For more details, see
11 | #   http://developer.android.com/guide/developing/tools/proguard.html
12 | 
13 | # Add any project specific keep options here:
14 | 
15 | # If your project uses WebView with JS, uncomment the following
16 | # and specify the fully qualified class name to the JavaScript interface
17 | # class:
18 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
19 | #   public *;
20 | #}
21 | 


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/project.properties:
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 1 | # This file is automatically generated by Android Tools.
 2 | # Do not modify this file -- YOUR CHANGES WILL BE ERASED!
 3 | #
 4 | # This file must be checked in Version Control Systems.
 5 | #
 6 | # To customize properties used by the Ant build system edit
 7 | # "ant.properties", and override values to adapt the script to your
 8 | # project structure.
 9 | #
10 | # To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):
11 | #proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
12 | 
13 | # Project target.
14 | target=android-17
15 | android.library=true
16 | 


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/res/drawable-hdpi/ic_launcher.png:
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https://raw.githubusercontent.com/viilaismonster/LinearAllocFix/e496534773a38647e741f6ec4841fd32470d2fb1/res/drawable-hdpi/ic_launcher.png


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/res/drawable-mdpi/ic_launcher.png:
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https://raw.githubusercontent.com/viilaismonster/LinearAllocFix/e496534773a38647e741f6ec4841fd32470d2fb1/res/drawable-mdpi/ic_launcher.png


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/res/drawable-xhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/viilaismonster/LinearAllocFix/e496534773a38647e741f6ec4841fd32470d2fb1/res/drawable-xhdpi/ic_launcher.png


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/res/drawable-xxhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/viilaismonster/LinearAllocFix/e496534773a38647e741f6ec4841fd32470d2fb1/res/drawable-xxhdpi/ic_launcher.png


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/res/layout/activity_main.xml:
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 1 | <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2 |     xmlns:tools="http://schemas.android.com/tools"
 3 |     android:layout_width="match_parent"
 4 |     android:layout_height="match_parent"
 5 |     android:paddingBottom="@dimen/activity_vertical_margin"
 6 |     android:paddingLeft="@dimen/activity_horizontal_margin"
 7 |     android:paddingRight="@dimen/activity_horizontal_margin"
 8 |     android:paddingTop="@dimen/activity_vertical_margin"
 9 |     tools:context=".MainActivity" >
10 | 
11 |     <Button
12 |         android:id="@+id/btnDump"
13 |         android:layout_width="match_parent"
14 |         android:layout_height="wrap_content"
15 |         android:text="Dump" />
16 | 
17 |     <Button
18 |         android:id="@+id/btnHack"
19 |         android:layout_width="match_parent"
20 |         android:layout_height="wrap_content"
21 |         android:layout_below="@id/btnDump"
22 |         android:text="Hack" />
23 |     
24 |     <Button
25 |         android:id="@+id/btnClear"
26 |         android:layout_width="match_parent"
27 |         android:layout_height="wrap_content"
28 |         android:layout_alignParentBottom="true"
29 |         android:text="Clear" />
30 |     
31 |     <ScrollView
32 |         android:layout_width="match_parent"
33 |         android:layout_height="wrap_content"
34 |         android:layout_below="@id/btnHack"
35 |         android:layout_above="@id/btnClear">
36 |         
37 | 	    <LinearLayout
38 | 	        android:id="@+id/log"
39 | 	        android:orientation="vertical"
40 | 	        android:layout_width="match_parent"
41 | 	        android:layout_height="wrap_content" >
42 |         
43 |     </LinearLayout>
44 |         
45 |     </ScrollView>
46 |     
47 | 
48 | </RelativeLayout>
49 | 


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/res/values/dimens.xml:
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1 | <resources>
2 | 
3 |     <!-- Default screen margins, per the Android Design guidelines. -->
4 |     <dimen name="activity_horizontal_margin">16dp</dimen>
5 |     <dimen name="activity_vertical_margin">16dp</dimen>
6 | 
7 | </resources>
8 | 


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/res/values/strings.xml:
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1 | <?xml version="1.0" encoding="utf-8"?>
2 | <resources>
3 | 
4 |     <string name="app_name">LinearAllocFix</string>
5 |     <string name="action_settings">Settings</string>
6 |     <string name="hello_world">Hello world!</string>
7 | 
8 | </resources>
9 | 


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/res/values/styles.xml:
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 1 | <resources>
 2 | 
 3 |     <!--
 4 |         Base application theme, dependent on API level. This theme is replaced
 5 |         by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
 6 |     -->
 7 |     <style name="AppBaseTheme" parent="android:Theme.Light">
 8 |         <!--
 9 |             Theme customizations available in newer API levels can go in
10 |             res/values-vXX/styles.xml, while customizations related to
11 |             backward-compatibility can go here.
12 |         -->
13 |     </style>
14 | 
15 |     <!-- Application theme. -->
16 |     <style name="AppTheme" parent="AppBaseTheme">
17 |         <!-- All customizations that are NOT specific to a particular API-level can go here. -->
18 |     </style>
19 | 
20 | </resources>
21 | 


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/src/info/viila/android/linearallocfix/app/LinearAllocFixApplication.java:
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 1 | package info.viila.android.linearallocfix.app;
 2 | 
 3 | import info.viila.android.linearallocfix.lib.LinearAllocFix;
 4 | import android.app.Application;
 5 | 
 6 | public class LinearAllocFixApplication extends Application {
 7 | 	public LinearAllocFixApplication() {
 8 | //		LinearAllocFix.getInstance();
 9 | //		LinearAllocFix.getInstance().current();
10 | //		LinearAllocFix.getInstance().hack();
11 | 	}
12 | }
13 | 


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/src/info/viila/android/linearallocfix/lib/LinearAllocFix.class:
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https://raw.githubusercontent.com/viilaismonster/LinearAllocFix/e496534773a38647e741f6ec4841fd32470d2fb1/src/info/viila/android/linearallocfix/lib/LinearAllocFix.class


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/src/info/viila/android/linearallocfix/lib/LinearAllocFix.java:
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 1 | package info.viila.android.linearallocfix.lib;
 2 | 
 3 | import android.R.integer;
 4 | 
 5 | public class LinearAllocFix {
 6 | 	
 7 | 	private static LinearAllocFix fixer;
 8 | 	
 9 | 	public static LinearAllocFix getInstance() {
10 | 		if(fixer == null)
11 | 			fixer = new LinearAllocFix();
12 | 		return fixer;
13 | 	}
14 | 	
15 | 	private LinearAllocFix() {
16 |         System.loadLibrary("linear-alloc-fix");
17 | 	}
18 | 	
19 | 	public native long current();
20 | 	public native long hack();
21 | 	public native long debug(int offset, int attr);
22 | }
23 | 


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/src/info/viila/android/linearallocfix/ui/MainActivity.java:
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 1 | package info.viila.android.linearallocfix.ui;
 2 | 
 3 | import info.viila.android.linearallocfix.lib.LinearAllocFix;
 4 | import android.hardware.Camera;
 5 | import android.os.Bundle;
 6 | import android.R.integer;
 7 | import android.app.Activity;
 8 | import android.view.Menu;
 9 | import android.view.View;
10 | import android.view.View.OnClickListener;
11 | import android.widget.Button;
12 | import android.widget.LinearLayout;
13 | import android.widget.TextView;
14 | 
15 | public class MainActivity extends Activity implements OnClickListener{
16 | 
17 | 	Button btnDump, btnHack, btnClear;
18 | 	LinearLayout log;
19 | 	@Override
20 | 	protected void onCreate(Bundle savedInstanceState) {
21 | 		super.onCreate(savedInstanceState);
22 | 		setContentView(R.layout.activity_main);
23 | 
24 | 		btnDump = (Button)findViewById(R.id.btnDump);
25 | 		btnHack = (Button)findViewById(R.id.btnHack);
26 | 		btnClear = (Button)findViewById(R.id.btnClear);
27 | 		log = (LinearLayout)findViewById(R.id.log);
28 | 
29 | 		btnDump.setOnClickListener(this);
30 | 		btnHack.setOnClickListener(this);
31 | 		btnClear.setOnClickListener(this);
32 | 		Thread tmp;
33 | 	}
34 | 
35 | 	@Override
36 | 	public void onClick(View v) {
37 | 		switch (v.getId()) {
38 | 		case R.id.btnDump:
39 | 			int [] attrs = {3};
40 | 			for(int i = 6; i<= 6;i++) {
41 | 				StringBuilder sBuilder = new StringBuilder();
42 | 				for(int j:attrs)
43 | 					sBuilder.append(LinearAllocFix.getInstance().debug(i, j)+", ");
44 | 				addLog(i+"="+sBuilder.toString());
45 | 			}
46 | 			break;
47 | 
48 | 		case R.id.btnHack:
49 | 			addLog("current="+LinearAllocFix.getInstance().current()
50 | 					+"\n"+"hack="+LinearAllocFix.getInstance().hack());
51 | 			break;
52 | 			
53 | 		case R.id.btnClear:
54 | 			log.removeAllViews();
55 | 			break;
56 | 		}
57 | 	}
58 | 
59 | 	private void addLog(String string) {
60 | 		TextView text = new TextView(this);
61 | 		text.setText(string);
62 | 		log.addView(text, 0);
63 | 	}
64 | }
65 | 


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