Android NDK Revision 6
Android NDK Revision 6 summary
Android NDK Revision 6 screenshot
Android NDK Revision 6 description
The Android NDK provides tools that allow Android application developers to embed components that make use of native code in their Android applications.
The Android NDK is a companion tool to the Android SDK that lets Android application developers build portions of their apps in native code. It is designed for use only in conjunction with the Android SDK, so if you have not already installed the Android 1.5 SDK, please do so before downloading the NDK.
The Native Development Kit comes with a series of cross-toolchains (compilers, linkers, etc..) that you can use to create native ARM binaries.
It provides a set of system headers for stable native APIs that are guaranteed to be supported in all later releases of the platform:
· libc (C library) headers
· libm (math library) headers
· JNI interface headers
· libz (Zlib compression) headers
· liblog (Android logging) header
· A Minimal set of headers for C++ support
The NDK also provides a build system that lets you work efficiently with your sources, without having to handle the toolchain/platform/CPU/ABI details. You create very short build files to describe which sources to compile and which Android application will use them — the build system compiles the sources and places the shared libraries directly in your application project.
· A set of tools and build files used to generate native code libraries from C and C++ sources
· A way to embed the corresponding native libraries into application package files (.apks) that can be deployed on Android devices
· A set of native system headers and libraries that will be supported in all future versions of the Android platform, starting from Android 1.5
· Documentation, samples, and tutorials
Requirements:
· A complete Android SDK installation (including all dependencies) is required.
· Android 1.5 SDK or later version is required.
· GNU Make 3.81 or later is required. Earlier versions of GNU Make might work but have not been tested
· Cygwin
· The native libraries created by the Android NDK can only be used on devices running the Android 1.5 platform version or later. This is due to toolchain and ABI related changes that make the native libraries incompatible with 1.0 and 1.1 system images.
· For this reason, you should use native libraries produced with the NDK in applications that are deployable to devices running the Android 1.5 platform version or later. To ensure compatibility, an application using a native library produced with the NDK m
What's New in This Release:
General notes:
· Adds support for the x86 ABI, which allows you to generate machine code that runs on compatible x86-based Android devices. Major features for x86 include x86-specific toolchains, system headers, libraries and debugging support. For all of the details regarding x86 support, see docs/CPU-X86.html in the NDK package.
By default, code is generated for ARM-based devices, but you can add x86 to your APP_ABI definition in your Application.mk file to build for x86 platforms. For example, the following line instructs ndk-build to build your code for three distinct ABIs:
· APP_ABI := armeabi armeabi-v7a x86Unless you rely on ARM-based assembly sources, you shouldn't need to touch your Android.mk files to build x86 machine code.
· You can build a standalone x86 toolchain using the --toolchain=x86-4.4.3 option when calling make-standalone-toolchain.sh. See docs/STANDALONE-TOOLCHAIN.html for more details.
· The new ndk-stack tool lets you translate stack traces in logcat that...
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