Buildroot Cross-compilation Tool

After Buildroot is compiled, it will generate a cross-compilation tool in the output/rockchip_rk3568/host/ directory, which we can use to compile the target program.

• Cross-compilation tool directory

output/rockchip_rk3568/host/bin/

• Compile example hello.c

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char *argv[])
{
         printf("Hello World!\n");
         return 0;
}

• Compile

.../host/bin/arm-buildroot-linux-gnueabihf-gcc hello.c -o hello

• Run

Copy the executable program hello to the device, run ./hello, you will see the printed message Hello World!.