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64 bit assembler => 64 bit assembler. Conceptual Issues => Topic started by: Mikl__ on October 30, 2016, 02:16:05 AM

Title: ml64 + polink
Post by: Mikl__ on October 30, 2016, 02:16:05 AM
I tried to connect ml64 and link

when ml64 + link
asm
Code Select
include win64a.inc
.data
MsgCaption      db "Iczelion's tutorial #2",0
MsgBoxText      db "Win64 Assembly is Great!",0
.code
WinMain proc
sub esp,28h
invoke MessageBox,NULL,offset MsgCaption,offset MsgCaption,MB_OK
invoke ExitProcess,NULL
WinMain endp
endbat
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%masm64_path%bin\ml64 /Cp /c /I%masm64_path%Include tut_02ms.asm
%masm64_path%bin\link /SUBSYSTEM:WINDOWS /LIBPATH:%masm64_path%lib /entry:WinMain tut_02ms.obj
the result is a source file is 2560 bytes,
if poasm + polink
asm
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include user32.inc
includelib user32.lib
include kernel32.inc
includelib kernel32.lib
MB_OK equ 0
NULL equ 0
.data
MsgCaption      db "Iczelion's tutorial #2",0
MsgBoxText      db "Win64 Assembly is Great!",0
.code
start:
sub esp,28h
invoke MessageBox,NULL,offset MsgCaption,offset MsgCaption,MB_OK
invoke ExitProcess,NULL
end startbat
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%masm64_path%bin\poasm  /AAMD64 /Gr tut_02po.asm
%masm64_path%bin\polink /SUBSYSTEM:WINDOWS /LIBPATH:%masm64_path%lib tut_02po.obj
as a result of a file of 1536 bytes
if ml64 + polink
asm
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include win64a.inc
.data
MsgCaption      db "Iczelion's tutorial #2",0
MsgBoxText      db "Win64 Assembly is Great!",0
.code
WinMain proc
sub esp,28h
invoke MessageBox,NULL,offset MsgCaption,offset MsgCaption,MB_OK
invoke ExitProcess,NULL
WinMain endp
endbat
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%masm64_path%bin\ml64 /Cp /c /I%masm64_path%Include tut_02mp.asm
%masm64_path%bin\polink /SUBSYSTEM:WINDOWS /LIBPATH:%masm64_path%lib /entry:WinMain tut_02mp.obj
as a result of a file of 64000 bytes, file not runs
Quoteentry point BaseProcessPostImport procedure not found in kernel32.dll
What have I done wrong?
Title: Re: ml64 + polink
Post by: Vortex on October 30, 2016, 02:47:27 AM
Hello Mikl__,

I guess some other modules are interfering. Can you send here the object module tut_02mp.obj producing an executable of 64000 bytes?
Title: Re: ml64 + polink
Post by: Mikl__ on October 30, 2016, 02:56:08 AM
Hi, Vortex!
Title: Re: ml64 + polink
Post by: Vortex on October 30, 2016, 03:17:01 AM
tut_02mp.asm contains this line.

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include win64a.inc

How are defined the external functions in this include file? Normally, the API functions should be declared with EXTERNDEF otherwise your code will import a lot of unnecessary symbols making larger your object module. Disassembling tut_02mp.obj :

H:\masm32\bin\objconv.exe -fmasm tut_02mp.obj disasm.txt

disasm.txt

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option dotname

public start

extern __imp_wvsprintfW: byte
extern __imp_wvsprintfA: byte
extern __imp_wsprintfW: byte
extern __imp_wsprintfA: byte
extern __imp_mouse_event: byte
extern __imp_keybd_event: byte
.
.
.
.
extern __imp_AddLocalAlternateComputerNameW: byte
extern __imp_AddLocalAlternateComputerNameA: byte
extern __imp_AddConsoleAliasW: byte
extern __imp_AddConsoleAliasA: byte
extern __imp_AddAtomW: byte
extern __imp_AddAtomA: byte
extern __imp_ActivateActCtx: byte

@comp.id equ 00957809H


_text   SEGMENT PARA 'CODE'

start   PROC
        sub     esp, 40                                 
        xor     ecx, ecx                               
        mov     rdx, offset MsgCaption                 
        mov     r8, rdx                                 
        xor     r9d, r9d                               
        call    qword ptr [__imp_MessageBoxA]           
        xor     ecx, ecx                               

        call    qword ptr [__imp_ExitProcess]
start   ENDP

_text   ENDS


The number of symbols defined with EXTERN is 1731. This the reason why you get a large executable.

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\masm64\bin\link.exe -dump /HEADERS tut_02mp.exe

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SECTION HEADER #1
   .text name
      23 virtual size
    1000 virtual address (0000000140001000 to 0000000140001022)
     200 size of raw data
     200 file pointer to raw data (00000200 to 000003FF)
       0 file pointer to relocation table
       0 file pointer to line numbers
       0 number of relocations
       0 number of line numbers
60000020 flags
         Code
         Execute Read

SECTION HEADER #2
   .data name
    F476 virtual size
    2000 virtual address (0000000140002000 to 0000000140011475)
    F600 size of raw data
     400 file pointer to raw data (00000400 to 0000F9FF)
       0 file pointer to relocation table
       0 file pointer to line numbers
       0 number of relocations
       0 number of line numbers
C0000040 flags
         Initialized Data
         Read Write

F600 size of raw data. This is the size of the .data section containing all the API functions mentioned above.
Title: Re: ml64 + polink
Post by: Mikl__ on October 30, 2016, 03:44:14 AM
bat
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set filename=tut_02mp
%masm64_path%bin\ml64 /Cp /c /I%masm64_path%Include %filename%.asm
%masm64_path%bin\polink /SUBSYSTEM:WINDOWS /LIBPATH:%masm64_path%lib ^
/entry:start %filename%.objasm
Code Select
include user32.inc
includelib user32.lib
include kernel32.inc
includelib kernel32.lib
extern __imp_MessageBoxA:byte
extern __imp_ExitProcess:byte
.data
MsgCaption      db "Iczelion's tutorial #2",0
MsgBoxText      db "Win64 Assembly is Great!",0
.code
start proc
sub esp,28h
xor r9,r9
mov r8,offset MsgCaption
mov rdx,offset MsgBoxText
xor ecx,ecx
call MessageBoxA
xor ecx,ecx
call ExitProcess
start endp
endSize of exe-file is 1536 bites
Thank you, Vortex, very mutch! And special for you tut_02mp.exe in 660 bytes (http://www.kolobok.us/smiles/light_skin/bye.gif)
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