Want to compile native Android binary I can run in terminal on the phone

Question

I\'ve been trying for a couple days to compile a native ARM Android binary that will execute on my phone using a terminal application. I want to generate the same type of bi

Answer 1

Try if if the agcc wrapper can help you as referenced in the Android-tricks blog. According to the blog post you want to use the bionic library, but the one already installed on the phone, not some separately compiled version.

Answer 2

Just use the android-ndk. And build a Android.mk like so. include $(BUILD_EXECUTABLE) is what tells it build a executable instead of a JNI .lib

Android.mk

ifneq ($(TARGET_SIMULATOR),true)

LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)

LOCAL_CFLAGS += -Wall


LOCAL_LDLIBS := -L$(LOCAL_PATH)/lib -llog -g

LOCAL_C_INCLUDES := bionic
LOCAL_C_INCLUDES += $(LOCAL_PATH)/include

LOCAL_SRC_FILES:= main.cpp

LOCAL_MODULE := mycmd

include $(BUILD_EXECUTABLE)

endif  # TARGET_SIMULATOR != true

Answer 3

Using CMake with the Android NDK is a nice way to compile Android console applications.

Download CMake and android-cmake (set it up like this). If your program is called main.c, then write the following in file CMakeLists.txt:

project(test)
cmake_minimum_required(VERSION 2.8)
add_executable(test ./main.c)

and run cmake -DCMAKE_TOOLCHAIN_FILE=$ANDTOOLCHAIN .

You will then have a Makefile for your program, you can run make to have your test executable.

Answer 4

First, make sure you have the NDK:

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

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

Usually $NDK(may be different) =

Linux:

/home/<user>/android-ndk

Mac OS X:

/Users/<user>/android-ndk

In Terminal:

# create tool-chain - one line
# New method in ndk 12.
$NDK/build/tools/make_standalone_toolchain.py --arch arm --install-dir=/tmp/my-android-toolchain
# Old method.
#$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