For JDK6 you can download the source from java.net. For java.lang the story begins at j2se/src/share/native/java/lang/, and then search… JDK7 rearranges the directory structure a little. Some methods, such as Object.hashCode, may be implemented by hotspot instead or in addition to through JNI/Java. JDK6 is freely licensed through the Java Research License (JRL) and Java … Read more
Native code is the code whose memory is not “managed”, as in, memory isn’t freed for you (C++’ delete and C’s free, for instance), no reference counting, no garbage collection. Managed code, you guessed it, is the code whose memory is free and allocated for you, garbage collection and other goodies. Mixed code is when … Read more
I search for this constantly, and although many of these answers are quite right in citing that V8 isn’t iOS compatible, it seems that running a nodelike environment within iOS isn’t all that impossible. The first option I discovered was called “Neunode” (hasn’t been updated in a year). Here are some reference links if you … Read more
For Android, Use BackHandler to exit the App: import React, { BackHandler } from ‘react-native’; BackHandler.exitApp();
**: exponentiation ^: exclusive-or (bitwise) %: modulus //: divide with integral result (discard remainder)
What are native methods in Java and where should they be used? Once you see a small example, it becomes clear: Main.java: public class Main { public native int intMethod(int i); public static void main(String[] args) { System.loadLibrary(“Main”); System.out.println(new Main().intMethod(2)); } } Main.c: #include <jni.h> #include “Main.h” JNIEXPORT jint JNICALL Java_Main_intMethod( JNIEnv *env, jobject obj, … Read more
I just validated .Net Native on VS2015 & Windows 8.1 (when configured correctly, examine .proj to validate) and building for a particular architecture (may be overkill, haven’t validated), will produce a native file which will give you the “harder to reverse engineer” code you are looking for which for me was unabled to read .dll … Read more
In native code, it can be done with a single memcpy / memmove, as opposed to n distinct copy operations. The difference in performance is substantial.
dumpbin from the Visual Studio command prompt: dumpbin /exports csp.dll Example of output: Microsoft (R) COFF/PE Dumper Version 10.00.30319.01 Copyright (C) Microsoft Corporation. All rights reserved. Dump of file csp.dll File Type: DLL Section contains the following exports for CSP.dll 00000000 characteristics 3B1D0B77 time date stamp Tue Jun 05 12:40:23 2001 0.00 version 1 ordinal … Read more
Looking at the dump you provided gives some clues: _ZN7android10uirenderer12renderthread12RenderThread10threadLoopEv This indicates that the error occurred in the UI thread. libhwui.so x 6 This indicates that this is happening in the middle of some graphics/ui related code. libcutils.so – __android_log_assert This is an assert handler, so most likely some kind of assert was violated in … Read more