如何从Win10中的link.exe链接来自NASM的obj文件 [英] How link obj file from NASM with link.exe in Win10

问题描述

我在NASM中有以下代码:

I have the following code in NASM:

;sleep.asm
[SECTION .text]

global _start


_start:
    xor eax,eax
    mov ebx, 0x00016630 ;address of Sleep
    mov ax, 5000        ;pause for 5000ms
    push eax
    call ebx        ;Sleep(ms);

0x00016630是睡眠功能的地址(从kernel32.dll的dumpbin中获取).

Where 0x00016630 is the address of Sleep function (taken from dumpbin from kernel32.dll).

我想制作可执行文件以在Win 10中运行.

I would like to make executable file to run in Win 10. What I did was:

nasm -f win32 sleep.asm

，结果为sleep.obj.

所以现在我必须链接它.我选择使用以下命令来选择link.exe

So now I have to link it. I choose link.exe Unfortunately with the following command

link sleep.obj /entry:_start /subsystem:windows /nodefaultlib
Microsoft (R) Incremental Linker Version 14.00.24215.1
Copyright (C) Microsoft Corporation.  All rights reserved.

LINK : error LNK2001: unresolved external symbol __start
sleep.exe : fatal error LNK1120: 1 unresolved externals

任何人都可以帮助解决此问题吗?

Can anybody help how to fix this issue?

推荐答案

链接器将自动在您使用/entry在命令行中传递的任何内容前加一个下划线.尝试以下方法:

The linker will automatically pre-pend an underscore to whatever you pass on the command line with /entry. Try this instead:

link sleep.obj /entry:start /subsystem:windows /nodefaultlib

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