如何使用Android.mk编译简单的本机代码? [英] How do I compile simple native code using Android.mk?

问题描述

尤其是我正在尝试编译chainDD的su二进制文件.我尝试使用ndk-build，但是似乎我需要设置NDK_PROJECT_PATH，但是文档中没有对此进行设置.

In particular I am trying to compile chainDD's su binary. I tried to use ndk-build but it seems I need to set NDK_PROJECT_PATH but what this should be set to is not described in the documentation.

推荐答案

首先，请确保您拥有NDK:

First, make sure you have the NDK:

http://developer.android.com/tools/sdk/ndk/index.html

这是为手机编译C二进制文件的最简单方法:

Here is the easiest way to compile a C binary for your phone:

http://developer.android.com/tools/sdk/ndk/index.html

http://www.kandroid.org/ndk/docs/STANDALONE- TOOLCHAIN.html

通常$ NDK(可能有所不同)=

Usually $NDK(may be different) =

Linux:

/home/<user>/android-ndk

/home/<user>/android-ndk

Mac OS X:

/Users/<user>/android-ndk

/Users/<user>/android-ndk

两者: $ HOME/android-ndk

Both: $HOME/android-ndk

在终端机中:

# create tool-chain - one line
$NDK/build/tools/make-standalone-toolchain.sh --platform=android-3 --install-dir=/tmp/my-android-toolchain

# add to terminal PATH variable
export PATH=/tmp/my-android-toolchain/bin:$PATH

# make alias CC be the new gcc binary
export CC=arm-linux-androideabi-gcc

# compile your C code(I tried hello world)
$CC -o foo.o -c foo.c

# push binary to phone
adb push foo.o /data/local/tmp

# execute binary
adb /data/local/tmp/foo.o

请让我知道我是否可以帮忙！

Please let me know if I can help!

此致

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