如何查找本机 DLL 文件是编译为 x64 还是 x86? [英] How to find if a native DLL file is compiled as x64 or x86?

问题描述

我想确定从托管代码应用程序 (C#).

I want to determine if a native assembly is complied as x64 or x86 from a managed code application (C#).

我认为它必须在 PE 标头中的某个位置，因为 OS 加载程序需要知道此信息，但我找不到它.当然我更喜欢用托管代码来做，但如果有必要，我可以使用原生 C++.

I think it must be somewhere in the PE header since the OS loader needs to know this information, but I couldn't find it. Of course I prefer to do it in managed code, but if it necessary, I can use native C++.

推荐答案

您可以使用 DUMPBIN 也是.使用 /headers 或 /all 标志及其列出的第一个文件头.

You can use DUMPBIN too. Use the /headers or /all flag and its the first file header listed.

dumpbin /headers cv210.dll

64 位

Microsoft (R) COFF/PE Dumper Version 10.00.30319.01
Copyright (C) Microsoft Corporation.  All rights reserved.


Dump of file cv210.dll

PE signature found

File Type: DLL

FILE HEADER VALUES
            8664 machine (x64)
               6 number of sections
        4BBAB813 time date stamp Tue Apr 06 12:26:59 2010
               0 file pointer to symbol table
               0 number of symbols
              F0 size of optional header
            2022 characteristics
                   Executable
                   Application can handle large (>2GB) addresses
                   DLL

32 位

Microsoft (R) COFF/PE Dumper Version 10.00.30319.01
Copyright (C) Microsoft Corporation.  All rights reserved.


Dump of file acrdlg.dll

PE signature found

File Type: DLL

FILE HEADER VALUES
             14C machine (x86)
               5 number of sections
        467AFDD2 time date stamp Fri Jun 22 06:38:10 2007
               0 file pointer to symbol table
               0 number of symbols
              E0 size of optional header
            2306 characteristics
                   Executable
                   Line numbers stripped
                   32 bit word machine
                   Debug information stripped
                   DLL

查找"可以让生活更轻松:

'find' can make life slightly easier:

dumpbin /headers cv210.dll |find "machine"
        8664 machine (x64)

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