assembly - MinGW 32 "undefined reference to `ExitProcess@4'" -

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for learning purposes wrote small assembler program (test.asm):

global _main  extern _exitprocess@4  section .text      _main:          mov     ebx,0         push    ebx         call    _exitprocess@4

than assembled nasm (test.obj):

nasm -f win32 test.asm

now trying link "portable executable" (windows 10 32 bit):

ld test.obj

but getting error message:

undefined reference `exitprocess@4'

as far understand message means, program not linked "kernel32.dll". thought "ld" linking "kernel32.dll" automatically don't have add flags that. if add flag:

ld test.obj -lkernel32

i getting following error message:

cannot find -lkernel32

i sure did dumb mistake maybe can tell me what's wrong.

edit:

if using "gcc" instead work's:

gcc main.obj -nostdlib -lkernel32

so wondering why "gcc" knows "-lkernel32" , "ld" not.

as you've figured out, ld you'll need specify paths find proper libs.

one advice though, if want make life easier on learning process, there exists lightweight linker called golink linking these type of snippets easy doing: 

> nasm -f win32 foo.asm && golink foo.obj kernel32.dll  golink.exe version 1.0.2.3 - copyright jeremy gordon 2002-2016 - jg@jgnet.co.uk output file: foo.exe format: win32   size: 1,536 bytes

it allows link necessary dlls , that's pretty much, don't need mess search paths time.


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