Dumpbin命令查看软件32位/64位

Dumpbin命令查看软件32位/64位

64位的程序是不能加载32位的库，32位的库和64位应用程序是不兼容的。 所以如果在load过程中发现出错，首先得确定所加载的库是64的。如何判断库是64位的？dumpbin.exe 它用来分析二进制库和程序的结构。在应用程序中找到 VS2010 -> VS tools -> VS x64 Win64 Command Prompt 执行dumpbin命令。下面分别为32位和64位库的不同。

32bit DLL C:\Program Files (x86)\Java50\jre\bin\j9vm>dumpbin /headers jvm.dll Microsoft (R) COFF/PE Dumper Version 10.00.30319.01 Copyright (C) Microsoft Corporation.  All rights reserved. Dump of file jvm.dll PE signature found File Type: DLL FILE HEADER VALUES              14C machine (x86)                5 number of sections         4720D7EE time date stamp Fri Oct 26 01:52:46 2007                0 file pointer to symbol table                0 number of symbols               E0 size of optional header             210E characteristics                    Executable                    Line numbers stripped                    Symbols stripped                    32 bit word machine                    DLL

64bit DLL C:\Program Files\Java50\jre\bin\j9vm>dumpbin /headers jvm.dll Microsoft (R) COFF/PE Dumper Version 10.00.30319.01 Copyright (C) Microsoft Corporation.  All rights reserved. Dump of file jvm.dll PE signature found File Type: DLL FILE HEADER VALUES             8664 machine (x64)                6 number of sections         43696321 time date stamp Thu Nov 03 09:08:49 2005                0 file pointer to symbol table                0 number of symbols               F0 size of optional header             202E characteristics                    Executable                    Line numbers stripped                    Symbols stripped                    Application can handle large (>2GB) addresses                    DLL

关于dumpbin的详细用法参考http://support.microsoft.com/kb/177429/en-us