A good question on CRT startup library

[ToutEnMasm]

Hello,
How can be write in masm the same thing that the crt library do ?
That is:

masm source:

;.....
includelib MasmStartup.lib
.code
     StartupMasm Proc
     StartupMasm endp
     ..other proc
end

The thing I don't know how to write,that made the MasmStartup.lib

       Some Idea for that ?

[drizz]

It's as simple as declaring StartupMasm in MasmStartup.lib as extern,
and put entrypoint in MasmStartup.lib

[ToutEnMasm]

Thanks,
It work

[ToutEnMasm]

But.....
LINK : error LNK2001: unresolved external symbol _WinMainCRTStartup

How to avoid this,I have no use of libcmt.lib,at this time

[drizz]

Yes, you can't call entrypoint "start:", you have to specify two labels mainCRTStartup & WinMainCRTStartup

Code Select Expand

.686
.model flat,stdcall
option casemap:none
option proc:private
include kernel32.inc
includelib kernel32.lib

EXTERN STDCALL StartupMasm:PROTO STDCALL

.code

mainCRTStartup proc c public
;SUBSYSTEM:CONSOLE
invoke StartupMasm
invoke ExitProcess,eax
mainCRTStartup endp

WinMainCRTStartup proc c public
;SUBSYSTEM:WINDOWS
invoke StartupMasm
invoke ExitProcess,eax
WinMainCRTStartup endp

end

HtH

[ToutEnMasm]

Ok,
Like that it's work,thanks