我有一个任意的。net程序集列表。

我需要以编程方式检查每个DLL是否为x86构建(而不是x64或任何CPU)。这可能吗?


当前回答

JetBrains的DotPeek提供了一个快速简单的方法来查看msil(任何CPU), x86和x64:

其他回答

我喜欢ILSpy工具。它不仅显示了架构,还显示了目标框架:

// linq2db, Version=3.0.0.0, Culture=neutral, PublicKeyToken=e41013125f9e410a
// Global type: <Module>
// Architecture: AnyCPU (64-bit preferred)
// Runtime: v4.0.30319
// This assembly is signed with a strong name key.
// This assembly was compiled using the /deterministic option.
// Hash algorithm: SHA1

因此,可以确定它是。net Core 2.1, .NET Framework 4.6或任何其他版本:

一个工具是sigcheck:

sigcheck c:\Windows\winhlp32.exe

输出:

Sigcheck v2.71 - File version and signature viewer
Copyright (C) 2004-2018 Mark Russinovich
Sysinternals - www.sysinternals.com

c:\windows\winhlp32.exe:
        Verified:       Signed
        Signing date:   20:05 02.05.2022
        Publisher:      Microsoft Windows
        Company:        Microsoft Corporation
        Description:    Windows Winhlp32 Stub
        Product:        Microsoft® Windows® Operating System
        Prod version:   10.0.19041.1
        File version:   10.0.19041.1 (WinBuild.160101.0800)
        MachineType:    32-bit

sigcheck -nobanner c:\Windows\HelpPane.exe

输出:

c:\windows\HelpPane.exe:
        Verified:       Signed
        Signing date:   00:42 23.04.2022
        Publisher:      Microsoft Windows
        Company:        Microsoft Corporation
        Description:    Microsoft Help and Support
        Product:        Microsoft® Windows® Operating System
        Prod version:   10.0.19041.1151
        File version:   10.0.19041.1151 (WinBuild.160101.0800)
        MachineType:    64-bit

你自己写就行了。PE架构的核心自从在Windows 95中实现以来就没有发生过重大变化。

下面是一个c#的例子:

    public static ushort GetPEArchitecture(string pFilePath)
    {
        ushort architecture = 0;
        try
        {
            using (System.IO.FileStream fStream = new System.IO.FileStream(pFilePath, System.IO.FileMode.Open, System.IO.FileAccess.Read))
            {
                using (System.IO.BinaryReader bReader = new System.IO.BinaryReader(fStream))
                {
                    // Check the MZ signature
                    if (bReader.ReadUInt16() == 23117)
                    {
                        // Seek to e_lfanew.
                        fStream.Seek(0x3A, System.IO.SeekOrigin.Current);

                        // Seek to the start of the NT header.
                        fStream.Seek(bReader.ReadUInt32(), System.IO.SeekOrigin.Begin);

                        if (bReader.ReadUInt32() == 17744) // Check the PE\0\0 signature.
                        {
                            // Seek past the file header,
                            fStream.Seek(20, System.IO.SeekOrigin.Current);

                            // Read the magic number of the optional header.
                            architecture = bReader.ReadUInt16();
                        }
                    }
                }
            }
        }
        catch (Exception) { /* TODO: Any exception handling you want
                                     to do, personally I just take 0
                                     as a sign of failure */
        }

        // If architecture returns 0, there has been an error.
        return architecture;
    }
}

现在的常数是:

0x10B - PE32  format.
0x20B - PE32+ format.

但是用这种方法,它允许新常数的可能性。只要验证你认为合适的返回。

cfeduke注意到调用GetPEKind的可能性。在PowerShell中进行这个操作可能会很有趣。

例如,下面是可以使用的cmdlet代码:https://stackoverflow.com/a/16181743/64257

另外,在https://stackoverflow.com/a/4719567/64257网站上提到“PowerShell社区扩展中也有Get-PEHeader cmdlet,可以用来测试可执行图像。”

[TestMethod]
public void EnsureKWLLibrariesAreAll64Bit()
{
    var assemblies = Assembly.GetExecutingAssembly().GetReferencedAssemblies().Where(x => x.FullName.StartsWith("YourCommonProjectName")).ToArray();
    foreach (var assembly in assemblies)
    {
        var myAssemblyName = AssemblyName.GetAssemblyName(assembly.FullName.Split(',')[0] + ".dll");
        Assert.AreEqual(ProcessorArchitecture.MSIL, myAssemblyName.ProcessorArchitecture);
    }
}