Cross Compile Menggunakan Crosstool NG

Install Crosstool-ng

Install required lib

sudo apt install cmake bison autoconf flex texino help2man libtool libtool-bin libtool-doc libncurses5-dev libncursesw5-dev

Clone repository

git clone https://github.com/crosstool-ng/crostool-ng.git

cd crosstool-ng

Install

Install di folder lokal agar tidak memerlukan root permission

./bootstrap
./configure --prefix=${PWD}
make
make install

Build toolchain untuk Raspberry pi 4

Masih di direktori yang sama

./ct-ng armv8-rpi4-linux-gnueabihf
./ct-ng build

Tunggu sampai proses build selesai, toolchain akan terinstall di /home/{user}/x-tool/armv8-rpi4-linux-gnueabihf

Compile untuk raspberry pi 4

Buat contoh program hello world c++:

//hello-world.cpp
#include <iostream>
using namespace std;
int main(){
  cout<<"Hello World\n";
  return 0;
}

Compile menggunakan toolchain raspberry pi:

xtools/path/armv8-rpi4-linux-gnueabihf/bin/armv8-rpi4-linux-gnueabihf-g++ hello-world.cpp -o hello-world-rpi4

Cek informasi binary yang sudah dibuat (hello-world-rpi4)

file hello-world-rpi4

Hasilnya:

hello-world-rpi4: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-armhf.so.3, for GNU/Linux 5.13.1, with debug_info, not stripped

Dites menggunakan:

18.04.1-Ubuntu x86_64 GNU/Linux