Hello StackOverFlowers!
I'm extremely new to the whole linux thing and I'm using Cygwin to try to do the following..
Put a test file through a parser...
./parser < test.c > test.asm
//Works and generates ASM code
Do this line as described in the tutorial which I'm not sure exactly what it does...
nasm -f elf test.asm
//Works
And finally this line to create the exectuable(If I am understanding the tutorial correctly)
ld -s -o test test.o
I'm getting an error of ld: i386 architecture of input file test.o' is incompatible with i386:x86-64 output
on this line. I know it's because I'm trying to go from a 32-bit to a 64-bit, but I can't figure out how to combat this. I've tried using elf_i386, but I get ld: unrecognised emulation mode: elf_i386. Supported emulations: i386pep i386pe
.
Any and all suggestions are much appreciated!!
EDIT:
Test.asm file
section .data
numbers db "0123456789", 0xA
inputchar db 0
section .text
global F_124565444
F_124565444:
push ebp
mov ebp, esp
sub esp, 4
mov dword [ebp-4], 0
jmp G2
G1:
add dword [ebp-4], 1
push edx
G2:
mov edx, 0
mov eax, [ebp+8]
mov ebx, 10
div ebx
mov [ebp+8], eax
cmp eax, 0
jnz G1
push edx
add dword [ebp-4], 1
jmp G3
G4:
sub dword [ebp-4], 1
pop edx
mov eax, 4
mov ebx, 1
mov ecx, numbers
add ecx, edx
mov edx, 1
int 80h
G3:
cmp dword [ebp-4], 0
jnz G4
mov eax, 4
mov ebx, 1
lea ecx, [numbers+10]
mov edx, 1
int 80h
leave
ret
global F_7362500
F_7362500:
push ebp
mov ebp, esp
sub esp, 4
mov dword [ebp-4], 0
mov byte [inputchar], 0
jmp G6
G5:
mov dword eax, [ebp-4]
mov ebx, 10
mul ebx
xor ecx, ecx
mov byte cl, [inputchar]
sub ecx, 48
add eax, ecx
mov dword [ebp-4], eax
G6:
mov eax, 03h
mov ebx, 00h
mov ecx, inputchar
mov edx, 01h
int 80h
cmp byte [inputchar], 0ah
jne G5
mov dword eax, [ebp-4]
leave
ret
global F_28052
F_28052:
push ebp
mov ebp, esp
push dword [ebp+8]
push dword 0
pop ebx
pop eax
cmp eax, ebx
sete al
movzx eax, al
push dword eax
pop eax
cmp eax, 0
je L1
push dword [ebp+12]
pop eax
leave
ret
jmp L2
L1:
push dword [ebp+8]
push dword [ebp+12]
push dword [ebp+12]
push dword [ebp+8]
pop ebx
pop eax
mov edx, eax
sar edx, 31
idiv ebx
push dword eax
push dword [ebp+8]
pop ebx
pop eax
imul eax, ebx
push dword eax
pop ebx
pop eax
sub eax, ebx
push dword eax
call F_28052
add esp, 8
push dword eax
pop eax
leave
ret
L2:
leave
ret
global _start
_start:
push ebp
mov ebp, esp
sub esp, 4
sub esp, 4
call F_7362500
add esp, 0
push dword eax
lea ebx, [ebp-4]
pop eax
mov dword [ebx], eax
call F_7362500
add esp, 0
push dword eax
lea ebx, [ebp-8]
pop eax
mov dword [ebx], eax
push dword [ebp-4]
push dword [ebp-8]
call F_28052
add esp, 8
push dword eax
call F_124565444
add esp, 8
push dword 0
pop eax
leave
mov ebx, eax
mov eax,1
int 80h
leave
mov ebx, eax
mov eax,1
int 80h
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