我想创建一个只使用masm而不是masm32库的helloworld程序。以下是代码片段:错误LNK2001:无法解析的外部符号_MessageBox
.386
.model flat, stdcall
option casemap :none
extrn MessageBox : PROC
extrn ExitProcess : PROC
.data
HelloWorld db "Hello There!", 0
.code
start:
lea eax, HelloWorld
mov ebx, 0
push ebx
push eax
push eax
push ebx
call MessageBox
push ebx
call ExitProcess
end start
我能够组装本使用MASM:
c:\masm32\code>ml /c /coff demo.asm
Microsoft (R) Macro Assembler Version 9.00.21022.08
Copyright (C) Microsoft Corporation. All rights reserved.
Assembling: demo.asm
但是,我无法将其链接:
c:\masm32\code>link /subsystem:windows /defaultlib:kernel32.lib /defaultlib:user
32.lib demo.obj
Microsoft (R) Incremental Linker Version 9.00.21022.08
Copyright (C) Microsoft Corporation. All rights reserved.
demo.obj : error LNK2001: unresolved external symbol _MessageBox
demo.obj : error LNK2001: unresolved external symbol _ExitProcess
demo.exe : fatal error LNK1120: 2 unresolved externals
我包括在库在链接期间,所以不知道为什么它仍然说未解决的符号?
UPDATE:
c:\masm32\code>link /subsystem:windows /defaultlib:kernel32.lib /defaultlib:user
32.lib demo.obj
Microsoft (R) Incremental Linker Version 9.00.21022.08
Copyright (C) Microsoft Corporation. All rights reserved.
demo.obj : error LNK2001: unresolved external symbol [email protected]
demo.exe : fatal error LNK1120: 1 unresolved externals
更新2:最后的工作代码!
.386
.model flat, stdcall
option casemap :none
extrn [email protected] : PROC
extrn [email protected] : PROC
.data
HelloWorld db "Hello There!", 0
.code
start:
lea eax, HelloWorld
mov ebx, 0
push ebx
push eax
push eax
push ebx
call [email protected]
push ebx
call [email protected]
end start
谢谢!这解决了其中一个链接错误,但不是其他..请参阅更新 – Jumbo 2010-11-08 10:38:51
好点,请参阅我的编辑。 – 2010-11-08 10:42:53
太棒了!现在完美工作。我觉得这样一个n00b - 你能建议任何文档/书籍,我可以从中挑选所有这些东西吗?当你是一个新手时,MSDN太过艰巨。 – Jumbo 2010-11-08 10:48:26