Hello world 在 Windows 程序集中使用 nasm
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Hello world using nasm in windows assembly
提问by fulvio
I'm using nasmto compile the following assembly. However the code crashes in the console under Windows.
我正在使用nasm编译以下程序集。然而，代码在 Windows 下的控制台中崩溃。
C:\>nasm -f win32 test.asm -o test.o
C:\>ld test.o -o test.exe
C:\>nasm -f win32 test.asm -o test.o
C:\>ld test.o -o test.exe
section .data
msg db 'Hello world!', 0AH
len equ $-msg
section .text
global _WinMain@16
_WinMain@16:
mov edx, len
mov ecx, msg
mov ebx, 1
mov eax, 4
int 80h
mov ebx, 0
mov eax, 1
int 80h
According to this post. The mainfunction is not available under Windows and must be replaced by WinMain.
根据这个帖子。该main功能在 Windows 下不可用，必须替换为WinMain.
So if your entry point is _startor main, it should be changed to _WinMain@16and change the retat the end of the procedure to ret 16:
因此，如果您的入口点是_start或main，则应将其更改为_WinMain@16并将ret程序结束时的更改为ret 16：
My working example:
我的工作示例：
section .text
global _WinMain@16
_WinMain@16:
mov eax, 0
ret 16
回答by Gunner
The biggest problem is that you are trying to use Linux interupts on windows! int 80 will NOT work on windows.
最大的问题是你试图在 Windows 上使用 Linux 中断！int 80 不适用于 Windows。
We are using Assembly, so your entry point can be ANY label you want. The standard entry point that ld looks for is _start, if you want to use another label, you need to tell ld with the -e option So if you want your start label to be main, then you need
我们使用的是Assembly，所以你的入口点可以是你想要的任何标签。ld 寻找的标准入口点是 _start，如果你想使用另一个标签，你需要用 -e 选项告诉 ld 所以如果你想让你的开始标签是 main，那么你需要
global main
ld -e main test.o -o test.exe
If you are going to use NASM on Windows, I will recommend using GoLink as your linker. Here is a simple windows console app:
如果你打算在 Windows 上使用 NASM，我会推荐使用 GoLink 作为你的链接器。这是一个简单的 Windows 控制台应用程序：
STD_OUTPUT_HANDLE equ -11
NULL equ 0
global GobleyGook
extern ExitProcess, GetStdHandle, WriteConsoleA
section .data
msg db "Hello World!", 13, 10, 0
msg.len equ $ - msg
section .bss
dummy resd 1
section .text
GobleyGook:
push STD_OUTPUT_HANDLE
call GetStdHandle
push NULL
push dummy
push msg.len
push msg
push eax
call WriteConsoleA
push NULL
call ExitProcess
makefile:
生成文件：
hello: hello.obj
GoLink.exe /console /entry GobleyGook hello.obj kernel32.dll
hello.obj: hello.asm
nasm -f win32 hello.asm -o hello.obj
回答by johnfound
Although, this same program probably will run in WINE on Linux like a charm. :)
虽然，同样的程序可能会像魅力一样在 Linux 上的 WINE 中运行。:)
WINE doesn't prevent using Linux system calls from inside Windows PE binaries; the machine instructions run natively and WINE only provides DLL functions.
WINE 不会阻止在 Windows PE 二进制文件中使用 Linux 系统调用；机器指令本机运行，WINE 仅提供 DLL 函数。
