Architecture of i386 input file is incompatible with i386:x86-64

Question

I'm trying to create a simple kernel using Ubuntu. In the terminal I typed

    ld -Ttext 0x1000 -o kernel.bin loader.o main.o Video.o

But I got the following error message in return:

    ld: i386 architecture of input file `loader.o' is incompatible with i386:x86-64 output
    ld: warning: cannot find entry symbol _start; defaulting to 0000000000001000

Answer 1

If want compile the file as 32 bits, you can use:

ld -m elf_i386 -s -o file file.o

Answer 2

Use 64 bits instead of 32 for your loader and compile it with the following command:

nasm -f elf64 loader.asm -o loader.o

This should solve your error

Answer 3

When compiling/linking 32-bit apps on x86_64, setting emulation to elf_i386 provides the correct elf format. So, for example, if you compile an assembler app with nasm -f elf file.asm -o file.o, the link command is ld -m elf_i386 -o exename file.o Courtesy: David