cl.exe和ml.exe的问题 [英] a problem with cl.exe and ml.exe

问题描述

我用cl命令编译一个cpp文件：

  cl test.cpp //生成的test.exe可以工作well 
  

那么我用另一种方法：

  cl / Fa / c test.cpp //生成一个test.asm程序集文件
 ml test.asm //有失败！ 
  

为什么？如何解决？

源代码：

  test.cpp 
 
＃include< iostream> 
 using namespace std; 
 int main（）
 {
 cout<<hello\\\
; 
} 
  

错误信息：

< blockquote>

组装：test.asm
test.asm（1669）：致命错误A1010：不匹配的块嵌套

：？ $？6U？$ char_trait
s @ D @ std @@@ std @@ YAAAV？$ basic_ostream @ DU？$ char_traits @ D @ std @@@ 0 @ AAV10 @ PBD @ Z

---

今天我在c中写另一个代码

  // test.cpp 
＃include< stdio.h> 
 void main（）
 {
 printf（hello）; 
} 
  

然后我编译代码

  cl / Fa / c test.cpp 
 ml test.asm // ok！ 
  

这可能与C和C ++有所不同。这让我困惑了几天。

解决方案

如何解决？ >在生成异常处理代码时，编译器会生成无效的程序集列表。Microsoft Connect上存在一个错误： http://connect.microsoft.com/VisualStudio/feedback/details/556051/cl-facs-generates-bad-masm-for-c-exception-handlers

在回应这个错误时，有一个半心半意的我们会考虑修复这个以及一个免责声明，列出C生成的文件/ C ++编译器用于信息目的。

看起来你可能有一个脚本修复这个特殊的问题：

• 切除后的 ENDP 语句$ x ENDS 语句

将

粘贴到之前 _TEXT ENDS b
$ b

至少看起来像是在简单程序生成的asm文件中的模式 - 我不知道这个模式是否一般。不幸的是，应用此修复后，使用 fs 覆盖和一些未定义的符号会出现几个新问题。谁知道，当你尝试这个有更复杂的程序，你会遇到什么吗？

I used cl command to compile a cpp file:

cl test.cpp  //the generated  test.exe can work well

then I used another way:

cl /Fa /c test.cpp   //generate a test.asm assembly file
ml test.asm   // there failed!!!

why? How to solve it?

source code:

//:test.cpp 

 #include<iostream>
 using namespace std;
 int main()
  {
    cout<<"hello\n";
  }

wrong information:

Assembling: test.asm test.asm(1669) : fatal error A1010: unmatched block nesting

: ??$?6U?$char_trait s@D@std@@@std@@YAAAV?$basic_ostream@DU?$char_traits@D@std@@@0@AAV10@PBD@Z

---

today I write another code in c

//test.cpp
#include<stdio.h>
void main()
{
  printf("hello");
}

then I compile the code

cl /Fa /c test.cpp
ml test.asm //ok!

It may be the difference in C and C++. This confuses me a few days. :(

how to solve it? please help me.

解决方案

The compiler produces an invalid assembly listing when exception handling code is produced. There's a bug open on Microsoft Connect: http://connect.microsoft.com/VisualStudio/feedback/details/556051/cl-facs-generates-bad-masm-for-c-exception-handlers

In a response to the bug, there's a half-hearted "we will consider fixing this" along with a disclaimer that "listing files generated by the C/C++ compiler are for informational purposes".

It looks like you might be able to have a "scriptable" fix for this particular problem:

• cut the ENDP statement that follows a text$x ENDS statement,
• paste it just before the previous _TEXT ENDS statement

At least that looks to be the pattern in the asm file generated by your simple program - I don't know if that pattern would hold generally.

Unfortunately, after applying this fix, several new problems crop up with instructions using fs overrides and a couple undefined symbols. Who knows what else you'd run into once you tried this with a more complex program?

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