MSVC C++ 名称在运行时从字符串修改 [英] MSVC C++ Name Mangling From String On Runtime

问题描述

首先，我将从我需要​​在运行时进行名称修改的原因开始.

First i will start with the reason i need name mangling on runtime.

我需要在 dll 和它的包装器之间建立一个桥梁

I need to create a bridge between dll and its wrapper

namespace Wrapper
{
    class  __declspec(dllexport) Token
    {
    public:

        virtual void release() {}
    };
}

class  __declspec(dllexport) Token
{
public:

    virtual void release(){}
};

这个想法是使用 dumpin 生成所有包含类令牌的 dll 的重整名称，然后再将它们解散.

The idea is to use dumpin to generate all the mangled names of the dll holding class token and than demangled them.

?release@Token@@UAEXXZ --> void Token::release(void)

?release@Token@@UAEXXZ --> void Token::release(void)

之后我想转换的是匹配Wrapper，所以我需要更改函数名称

after that i want to convert is to match the Wrapper so i will need to change the function name

void Token::release(void) --> void Wrapper::Token::release(void)

void Token::release(void) --> void Wrapper::Token::release(void)

然后我需要再次对其进行处理，以便我可以创建一个 def 文件，将旧函数指向新函数.

and then i need to mangle it again so i can create a def file that direct the old function to the new one.

?release@Token@@UAEXXZ = ?release@Token@Wrapper@@UAEXXZ

?release@Token@@UAEXXZ = ?release@Token@Wrapper@@UAEXXZ

所有这些过程都需要在运行时进行.

all this process needs to be on run time.

首先也是最简单的解决方案是找到一个处理字符串的函数，但我找不到任何......

First and the easiest solution is to find a function that mangle strings but i couldn't find any...

还有其他解决方案吗?

推荐答案

Clang 编译器与 MSVC 的 ABI 兼容，包括名称修改.底层基础设施是LLVM项目的一部分，我发现llvm-undname 破坏 MSVC 名称.也许您可以重新设计它以将 Wrapper:: 命名空间添加到符号并重新整理.

The Clang compiler is ABI-compatible with MSVC, including name mangling. The underlying infrastructure is part of the LLVM project, and I found llvm-undname which demangles MSVC names. Perhaps you can rework it to add the Wrapper:: namespace to symbols and re-mangle.

您可以在 这个测试代码.

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