NDK console program

|
Programming/ C/C++
| Programming C/C++

NDK console program

Install NDK

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export NDK_BUNDLE_DIR=/opt/android-ndk-r21b
export NDK_DL_URL=https://dl.google.com/android/repository/android-ndk-r21b-linux-x86_64.zip
export PATH=/opt/maven-3/bin:/opt/jdk-8/bin:/usr/sbin:/usr/bin:/sbin:/bin
export PATH=${NDK_BUNDLE_DIR}/toolchains/llvm/prebuilt/linux-x86_64/bin:${NDK_BUNDLE_DIR}:$PATH

/bin/rm -fr ${NDK_BUNDLE_DIR} \
    && mkdir -p ${NDK_BUNDLE_DIR} \
    && curl -sSL -o /tmp/ndk.zip ${NDK_DL_URL} \
    && (cd ${NDK_BUNDLE_DIR}/.. && unzip /tmp/ndk.zip)

Hello, World

Hello.c

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/*
 * gcc -g -std=c11 -Wall -Wextra -Wformat -pedantic -o Hello Hello.c
 * valgrind -v ./Hello
 */
#include <stdio.h>
int main()
{
    printf("Hello, World!\n");
    return 0;
}

Hello.cpp

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/*
 * g++ -g -std=c++17 -Wall -Wextra -Wformat -pedantic -o Hello Hello.cpp
 * valgrind -v ./Hello
 */
#include <iostream>
int main()
{
    std::cout << "Hello, World!" << std::endl;
    return 0;
}

Android.mk

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LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)

LOCAL_MODULE := Hello

LOCAL_SRC_FILES := Hello.c
#LOCAL_SRC_FILES := Hello.cpp

include $(BUILD_EXECUTABLE)

Application.mk

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APP_PLATFORM := android-24
APP_BUILD_SCRIPT := Android.mk
APP_ABI := armeabi-v7a arm64-v8a x86_64

APP_STL := none
#APP_STL := c++_static

ndk-build

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# ndk-build NDK_PROJECT_PATH=. NDK_APPLICATION_MK=Application.mk
[armeabi-v7a] Executable     : Hello
[armeabi-v7a] Install        : Hello => libs/armeabi-v7a/Hello
[arm64-v8a] Compile        : Hello <= Hello.c
[arm64-v8a] Executable     : Hello
[arm64-v8a] Install        : Hello => libs/arm64-v8a/Hello
[x86_64] Compile        : Hello <= Hello.c
[x86_64] Executable     : Hello
[x86_64] Install        : Hello => libs/x86_64/Hello

# file libs/armeabi-v7a/Hello libs/arm64-v8a/Hello libs/x86_64/Hello
libs/armeabi-v7a/Hello: ELF 32-bit LSB shared object, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /system/bin/linker, BuildID[sha1]=899b8ea06a0b7372e7eef43db09bc145d5140ca5, stripped
libs/arm64-v8a/Hello:   ELF 64-bit LSB shared object, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /system/bin/linker64, BuildID[sha1]=1d490b72bbf70379b127a49f60d0383a62312937, stripped
libs/x86_64/Hello:      ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /system/bin/linker64, BuildID[sha1]=2af85ada459a58e93ab96e7aceb5b546f8bce80d, stripped

arm-linux-androideabi-readelf -h libs/armeabi-v7a/Hello
arm-linux-androideabi-readelf -A libs/armeabi-v7a/Hello
arm-linux-androideabi-readelf -p .interp libs/armeabi-v7a/Hello
arm-linux-androideabi-readelf -p .rodata libs/armeabi-v7a/Hello

aarch64-linux-android-readelf -h libs/arm64-v8a/Hello
aarch64-linux-android-readelf -p .interp libs/arm64-v8a/Hello
aarch64-linux-android-readelf -p .rodata libs/arm64-v8a/Hello

Android Debug Bridge

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adb push libs/armeabi-v7a/Hello /data/local/tmp/Hello
adb shell /data/local/tmp/Hello

adb push libs/arm64-v8a/Hello /data/local/tmp/Hello
adb shell /data/local/tmp/Hello

adb push libs/x86_64/Hello /data/local/tmp/Hello
adb shell /data/local/tmp/Hello