构建DLL文件时，生成的LIB文件是否包含DLL名称?
在 Visual C++ 中，当我构建一个 dll 时，输出文件是 .dll 和 .lib.
In Visual C++ , when I build a dll , the output files are .dll and .lib.
是 .lib 文件中内置的 dll 的名称.
Is the name of the dll built into the .lib file .
我问这个问题的原因是:当我通过导入这个 dll 构建我的 exe 并运行 exe 时，exe 会尝试定位 dll 以将其加载到进程地址空间中.
The reasson I ask this question is : When I built my exe by importing this dll and run the exe , the exe tries to locate the dll to load it in the process address space .
由于我们只是在项目属性中指定库名称(.lib 文件)，exe 是如何知道 dll 的名称的.
As we just specify the library name (.lib file) in the project properties , how does the exe get to know the name of the dll .
注意:我转储了库文件 (.lib)，发现它不包含 dll 的名称.
Note : I dumpbin libary file (.lib) and saw that it does not contain the name of the dll .
推荐答案
LIB文件变成EXE中的导入表.这确实包含 DLL 的名称.
The LIB file is turned into an import table in the EXE. This does contain the name of the DLL.
如果您运行 dumpbin/all MyDLL.lib，您可以看到这一点.请注意，dumpbin MyDll.lib 本身并没有显示任何有用的信息:您应该使用 /all.
You can see this if you run dumpbin /all MyDLL.lib. Note that dumpbin MyDll.lib by itself doesn't show anything useful: you should use /all.
这显示了 .LIB 文件中定义的所有部分.您可以忽略任何 .debug 部分，因为它们不会出现在发布版本中.在 .LIB 文件中，有一组 .idata 节.在我刚刚构建的 DLL 项目中，LIB 文件包含一个 .idata$4 部分，该部分定义了要放入 EXE 的导入表中的符号，包括 DLL 名称:
This shows all of the sections defined in the .LIB file. You can ignore any .debug sections, because they wouldn't be present in a Release build. In the .LIB file, there are a collection of .idata sections. In the DLL project that I just built, the LIB file contains a .idata$4 section which defines the symbols to be put in the EXE's import table, including the DLL name:
Archive member name at 83E: MyDll.dll/
497C3B9F time/date Sun Jan 25 10:14:55 2009
uid
gid
0 mode
2E size
correct header end
Version : 0
Machine : 14C (x86)
TimeDateStamp: 497C3B9F Sun Jan 25 10:14:55 2009
SizeOfData : 0000001A
DLL name : MyDll.dll
Symbol name : ?fnMyDll@@YAHXZ (int __cdecl fnMyDll(void))
Type : code
Name type : name
Hint : 2
Name : ?fnMyDll@@YAHXZ相关文章