mangosd / relinker

A robust native library loader for Android.

ReLinker

A robust native library loader for Android. More information can be found in our blog post

Min SDK: 9

Overview

The Android PackageManager's native library loading is unreliable. Occasionally when using native libraries, you will encounter a stack trace like this:

java.lang.UnsatisfiedLinkError: Couldn't load stlport_shared from loader dalvik.system.PathClassLoader: findLibrary returned null
at java.lang.Runtime.loadLibrary(Runtime.java:365)
at java.lang.System.loadLibrary(System.java:535)
at com.kii.safe.Native.<clinit>(Native.java:16)
... 63 more

Caused by: java.lang.UnsatisfiedLinkError: Library stlport_shared not found
at java.lang.Runtime.loadLibrary(Runtime.java:461)
at java.lang.System.loadLibrary(System.java:557)
at com.kii.safe.Native.<clinit>(Native.java:16)
... 5 more

ReLinker fixes these issues by replacing the standard System.loadLibrary call with a more reliable implementation.

Note that this library fixes intermittent link errors; if you get an error every time you use your app, you may have a configuration issue. See this StackOverflow question for more information.

Installation

ReLinker is distributed using jitpack.

To use ReLinker in your project, add the following to your gradle build file:

   repositories { 
        jcenter()
        maven { url "https://jitpack.io" }
   }
   
   dependencies {
         compile 'com.github.KeepSafe:ReLinker:1.1'
   }

Usage

Simply replace a call to System.loadLibrary like this:

System.loadLibrary("mylibrary");

With a call to ReLinker.loadLibrary like this:

ReLinker.loadLibrary(context, "mylibrary");

Sample application

See the sample application under sample/ for a quick demo.

License

Copyright 2015 KeepSafe Inc.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.