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Posted: **Sun Nov 25, 2012 10:54 am**

I'm trying to write a very basic kernel. I have a .asm file that jumps to a function in a .c file. I'm trying to compile these into a flat binary (.bin) under Cygwin.

I've run into so many errors and tried so many different things, it's not even funny.

The most reasonable thing I've tried:

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nasm.exe jump.asm -f elf32 -o jump.o

gcc.exe -c -m32 -Wall -Wextra -Werror -nostdlib -fno-builtin -nostartfiles -nodefaultlibs kernel.c -o kernel.o

ld.exe -m elf_i386 -s -r --oformat binary --entry jump jump.o kernel.o -o kernel.bin

It produces:

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Assembler messages:
Fatal error: selected target format 'pe-i386' unknown

and

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C:\dev\Perl\c\bin\ld.exe: unrecognised emulation mode: elf_i386
Supported emulations: i386pep

What are the correct flags for everything?

Thanks,

Posted: **Sun Nov 25, 2012 11:28 am**

Use the proper tools.
GCC Cross-Compiler

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Creating Flat Binary with Cygwin (NASM + C)

Creating Flat Binary with Cygwin (NASM + C)

Re: Creating Flat Binary with Cygwin (NASM + C)