142

我想确定本机程序集是从托管代码应用程序 ( C# ) 编译为 x64 还是 x86。

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,我更喜欢在托管代码中执行此操作,但如果有必要,我可以使用本机 C++。

4

12 回答 12

146

您也可以使用DUMPBIN。使用/headersor/all标志及其列出的第一个文件头。

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

'find' 可以让生活稍微轻松一些:

dumpbin /headers cv210.dll |find "machine"
        8664 machine (x64)
于 2010-10-10T09:26:20.863 回答
55

使用CorFlags有一种简单的方法可以做到这一点。打开 Visual Studio 命令提示符并键入“corflags [您的程序集]”。你会得到这样的东西:

c:\Program Files (x86)\Microsoft Visual Studio 9.0\VC>corflags "C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Data.dll"

Microsoft (R) .NET Framework CorFlags 转换工具。版本 3.5.21022.8 版权所有 (c) Microsoft Corporation。版权所有。

版本:v2.0.50727 CLR 标头:2.5 PE:PE32 CorFlags:24 ILONLY:0 32BIT:0 签名:1

您正在专门研究 PE 和 32BIT。

  • 任何 CPU

    PE:PE32
    32BIT:0

  • x86

    PE:PE32
    32BIT:1

  • x64:

    PE:PE32+
    32BIT:0

于 2010-03-10T15:51:25.563 回答
53

这个技巧有效,只需要记事本。

使用文本编辑器(如记事本)打开 dll 文件并找到第一次出现的字符串PE. 以下字符定义 dll 是 32 位还是 64 位。

32 位:

PE  L

64 位:

PE  d†
于 2016-12-29T16:03:05.840 回答
27

Magic字段(尽管 Windows 可执行映像(DLL/EXE 文件)中的IMAGE_OPTIONAL_HEADER标头没有任何可选内容)将告诉您 PE 的体系结构。

这是从文件中获取架构的示例。

public static ushort GetImageArchitecture(string filepath) {
    using (var stream = new System.IO.FileStream(filepath, System.IO.FileMode.Open, System.IO.FileAccess.Read))
    using (var reader = new System.IO.BinaryReader(stream)) {
        //check the MZ signature to ensure it's a valid Portable Executable image
        if (reader.ReadUInt16() != 23117) 
            throw new BadImageFormatException("Not a valid Portable Executable image", filepath);

        // seek to, and read, e_lfanew then advance the stream to there (start of NT header)
        stream.Seek(0x3A, System.IO.SeekOrigin.Current); 
        stream.Seek(reader.ReadUInt32(), System.IO.SeekOrigin.Begin);

        // Ensure the NT header is valid by checking the "PE\0\0" signature
        if (reader.ReadUInt32() != 17744)
            throw new BadImageFormatException("Not a valid Portable Executable image", filepath);

        // seek past the file header, then read the magic number from the optional header
        stream.Seek(20, System.IO.SeekOrigin.Current); 
        return reader.ReadUInt16();
    }
}

目前仅有的两个架构常量是:

0x10b - PE32
0x20b - PE32+

干杯

更新 自从我发布这个答案已经有一段时间了,但我仍然看到它不时地得到一些支持,所以我认为它值得更新。我写了一种方法来获取Portable Executable图像的体系结构,它还检查它是否被编译为AnyCPU. 不幸的是,答案在 C++ 中,但如果您有几分钟的时间在WinNT.h. 如果人们有兴趣,我会用 C# 编写一个端口,但除非人们真的想要它,否则我不会花太多时间来强调它。

#include <Windows.h>

#define MKPTR(p1,p2) ((DWORD_PTR)(p1) + (DWORD_PTR)(p2))

typedef enum _pe_architecture {
    PE_ARCHITECTURE_UNKNOWN = 0x0000,
    PE_ARCHITECTURE_ANYCPU  = 0x0001,
    PE_ARCHITECTURE_X86     = 0x010B,
    PE_ARCHITECTURE_x64     = 0x020B
} PE_ARCHITECTURE;

LPVOID GetOffsetFromRva(IMAGE_DOS_HEADER *pDos, IMAGE_NT_HEADERS *pNt, DWORD rva) {
    IMAGE_SECTION_HEADER *pSecHd = IMAGE_FIRST_SECTION(pNt);
    for(unsigned long i = 0; i < pNt->FileHeader.NumberOfSections; ++i, ++pSecHd) {
        // Lookup which section contains this RVA so we can translate the VA to a file offset
        if (rva >= pSecHd->VirtualAddress && rva < (pSecHd->VirtualAddress + pSecHd->Misc.VirtualSize)) {
            DWORD delta = pSecHd->VirtualAddress - pSecHd->PointerToRawData;
            return (LPVOID)MKPTR(pDos, rva - delta);
        }
    }
    return NULL;
}

PE_ARCHITECTURE GetImageArchitecture(void *pImageBase) {
    // Parse and validate the DOS header
    IMAGE_DOS_HEADER *pDosHd = (IMAGE_DOS_HEADER*)pImageBase;
    if (IsBadReadPtr(pDosHd, sizeof(pDosHd->e_magic)) || pDosHd->e_magic != IMAGE_DOS_SIGNATURE)
        return PE_ARCHITECTURE_UNKNOWN;

    // Parse and validate the NT header
    IMAGE_NT_HEADERS *pNtHd = (IMAGE_NT_HEADERS*)MKPTR(pDosHd, pDosHd->e_lfanew);
    if (IsBadReadPtr(pNtHd, sizeof(pNtHd->Signature)) || pNtHd->Signature != IMAGE_NT_SIGNATURE)
        return PE_ARCHITECTURE_UNKNOWN;

    // First, naive, check based on the 'Magic' number in the Optional Header.
    PE_ARCHITECTURE architecture = (PE_ARCHITECTURE)pNtHd->OptionalHeader.Magic;

    // If the architecture is x86, there is still a possibility that the image is 'AnyCPU'
    if (architecture == PE_ARCHITECTURE_X86) {
        IMAGE_DATA_DIRECTORY comDirectory = pNtHd->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR];
        if (comDirectory.Size) {
            IMAGE_COR20_HEADER *pClrHd = (IMAGE_COR20_HEADER*)GetOffsetFromRva(pDosHd, pNtHd, comDirectory.VirtualAddress);
            // Check to see if the CLR header contains the 32BITONLY flag, if not then the image is actually AnyCpu
            if ((pClrHd->Flags & COMIMAGE_FLAGS_32BITREQUIRED) == 0)
                architecture = PE_ARCHITECTURE_ANYCPU;
        }
    }

    return architecture;
}

该函数接受一个指向内存中 PE 映像的指针(因此您可以选择如何获取它们的毒药;内存映射或将整个内容读入内存......无论如何)。

于 2012-03-20T08:33:14.017 回答
14

对于非托管 DLL 文件,您需要先检查它是否是 16 位 DLL 文件(希望不是)。然后检查IMAGE\_FILE_HEADER.Machine字段。

其他人已经花时间解决了这个问题,所以我在这里重复一下:

要区分 32 位和 64 位 PE 文件,您应该检查 IMAGE_FILE_HEADER.Machine 字段。根据下面的 Microsoft PE 和 COFF 规范,我列出了该字段的所有可能值:http: //download.microsoft.com/download/9/c/5/9c5b2167-8017-4bae-9fde-d599bac8184a/ pecoff_v8.doc

IMAGE_FILE_MACHINE_UNKNOWN 0x0 该字段的内容假定适用于任何机器类型

IMAGE_FILE_MACHINE_AM33 0x1d3 松下 AM33

IMAGE_FILE_MACHINE_AMD64 0x8664 x64

IMAGE_FILE_MACHINE_ARM 0x1c0 ARM 小端

IMAGE_FILE_MACHINE_EBC 0xebc EFI 字节码

IMAGE_FILE_MACHINE_I386 0x14c Intel 386 或更高版本的处理器和兼容的处理器

IMAGE_FILE_MACHINE_IA64 0x200 Intel Itanium 处理器系列

IMAGE_FILE_MACHINE_M32R 0x9041 三菱 M32R 小端

IMAGE_FILE_MACHINE_MIPS16 0x266 MIPS16

IMAGE_FILE_MACHINE_MIPSFPU 0x366 MIPS 与 FPU

IMAGE_FILE_MACHINE_MIPSFPU16 0x466 MIPS16 with FPU

IMAGE_FILE_MACHINE_POWERPC 0x1f0 电源 PC 小端

IMAGE_FILE_MACHINE_POWERPCFP 0x1f1 支持浮点的Power PC

IMAGE_FILE_MACHINE_R4000 0x166 MIPS 小端

IMAGE_FILE_MACHINE_SH3 0x1a2 日立 SH3

IMAGE_FILE_MACHINE_SH3DSP 0x1a3 日立 SH3 DSP

IMAGE_FILE_MACHINE_SH4 0x1a6 日立 SH4

IMAGE_FILE_MACHINE_SH5 0x1a8 日立 SH5

IMAGE_FILE_MACHINE_THUMB 0x1c2 拇指

IMAGE_FILE_MACHINE_WCEMIPSV2 0x169 MIPS little-endian WCE v2

是的,您可以检查 IMAGE_FILE_MACHINE_AMD64|IMAGE_FILE_MACHINE_IA64 为 64 位和 IMAGE_FILE_MACHINE_I386 为 32 位。

于 2009-01-26T18:15:35.307 回答
5

您可以在此处找到解决方案的C #示例实现IMAGE_FILE_HEADER

于 2009-06-16T16:52:57.827 回答
3

64 位二进制文​​件以 PE32+ 格式存储。尝试阅读http://www.masm32.com/board/index.php?action=dlattach;topic=6687.0;id=3486

于 2009-01-26T18:00:34.107 回答
3

使用十六进制编辑器打开 dll,例如HxD

如果第 9 行有“dt”,则为 64 位。

如果有“L”。第 9 行是 32 位。

于 2013-08-05T09:48:17.967 回答
2

我在 powershell 脚本的第一个答案中重写了c++ 解决方案。脚本可以确定这种类型的 .exe 和 .dll 文件:

#Description       C# compiler switch             PE type       machine corflags
#MSIL              /platform:anycpu (default)     PE32  x86     ILONLY
#MSIL 32 bit pref  /platform:anycpu32bitpreferred PE32  x86     ILONLY | 32BITREQUIRED | 32BITPREFERRED
#x86 managed       /platform:x86                  PE32  x86     ILONLY | 32BITREQUIRED
#x86 mixed         n/a                            PE32  x86     32BITREQUIRED
#x64 managed       /platform:x64                  PE32+ x64     ILONLY
#x64 mixed         n/a                            PE32+ x64  
#ARM managed       /platform:arm                  PE32  ARM     ILONLY
#ARM mixed         n/a                            PE32  ARM  

此解决方案比 corflags.exe 和通过 C# 中的 Assembly.Load 加载程序集具有一些优势 - 您永远不会收到 BadImageFormatException 或有关无效标头的消息。

function GetActualAddressFromRVA($st, $sec, $numOfSec, $dwRVA)
{
    [System.UInt32] $dwRet = 0;
    for($j = 0; $j -lt $numOfSec; $j++)   
    {   
        $nextSectionOffset = $sec + 40*$j;
        $VirtualSizeOffset = 8;
        $VirtualAddressOffset = 12;
        $SizeOfRawDataOffset = 16;
        $PointerToRawDataOffset = 20;

    $Null = @(
        $curr_offset = $st.BaseStream.Seek($nextSectionOffset + $VirtualSizeOffset, [System.IO.SeekOrigin]::Begin);        
        [System.UInt32] $VirtualSize = $b.ReadUInt32();
        [System.UInt32] $VirtualAddress = $b.ReadUInt32();
        [System.UInt32] $SizeOfRawData = $b.ReadUInt32();
        [System.UInt32] $PointerToRawData = $b.ReadUInt32();        

        if ($dwRVA -ge $VirtualAddress -and $dwRVA -lt ($VirtualAddress + $VirtualSize)) {
            $delta = $VirtualAddress - $PointerToRawData;
            $dwRet = $dwRVA - $delta;
            return $dwRet;
        }
        );
    }
    return $dwRet;
}

function Get-Bitness2([System.String]$path, $showLog = $false)
{
    $Obj = @{};
    $Obj.Result = '';
    $Obj.Error = $false;

    $Obj.Log = @(Split-Path -Path $path -Leaf -Resolve);

    $b = new-object System.IO.BinaryReader([System.IO.File]::Open($path,[System.IO.FileMode]::Open,[System.IO.FileAccess]::Read, [System.IO.FileShare]::Read));
    $curr_offset = $b.BaseStream.Seek(0x3c, [System.IO.SeekOrigin]::Begin)
    [System.Int32] $peOffset = $b.ReadInt32();
    $Obj.Log += 'peOffset ' + "{0:X0}" -f $peOffset;

    $curr_offset = $b.BaseStream.Seek($peOffset, [System.IO.SeekOrigin]::Begin);
    [System.UInt32] $peHead = $b.ReadUInt32();

    if ($peHead -ne 0x00004550) {
        $Obj.Error = $true;
        $Obj.Result = 'Bad Image Format';
        $Obj.Log += 'cannot determine file type (not x64/x86/ARM) - exit with error';
    };

    if ($Obj.Error)
    {
        $b.Close();
        Write-Host ($Obj.Log | Format-List | Out-String);
        return $false;
    };

    [System.UInt16] $machineType = $b.ReadUInt16();
    $Obj.Log += 'machineType ' + "{0:X0}" -f $machineType;

    [System.UInt16] $numOfSections = $b.ReadUInt16();
    $Obj.Log += 'numOfSections ' + "{0:X0}" -f $numOfSections;
    if (($machineType -eq 0x8664) -or ($machineType -eq 0x200)) { $Obj.Log += 'machineType: x64'; }
    elseif ($machineType -eq 0x14c)                             { $Obj.Log += 'machineType: x86'; }
    elseif ($machineType -eq 0x1c0)                             { $Obj.Log += 'machineType: ARM'; }
    else{
        $Obj.Error = $true;
        $Obj.Log += 'cannot determine file type (not x64/x86/ARM) - exit with error';
    };

    if ($Obj.Error) {
        $b.Close();
        Write-Output ($Obj.Log | Format-List | Out-String);
        return $false;
    };

    $curr_offset = $b.BaseStream.Seek($peOffset+20, [System.IO.SeekOrigin]::Begin);
    [System.UInt16] $sizeOfPeHeader = $b.ReadUInt16();

    $coffOffset = $peOffset + 24;#PE header size is 24 bytes
    $Obj.Log += 'coffOffset ' + "{0:X0}" -f $coffOffset;

    $curr_offset = $b.BaseStream.Seek($coffOffset, [System.IO.SeekOrigin]::Begin);#+24 byte magic number
    [System.UInt16] $pe32 = $b.ReadUInt16();         
    $clr20headerOffset = 0;
    $flag32bit = $false;
    $Obj.Log += 'pe32 magic number: ' + "{0:X0}" -f $pe32;
    $Obj.Log += 'size of optional header ' + ("{0:D0}" -f $sizeOfPeHeader) + " bytes";

    #COMIMAGE_FLAGS_ILONLY               =0x00000001,
    #COMIMAGE_FLAGS_32BITREQUIRED        =0x00000002,
    #COMIMAGE_FLAGS_IL_LIBRARY           =0x00000004,
    #COMIMAGE_FLAGS_STRONGNAMESIGNED     =0x00000008,
    #COMIMAGE_FLAGS_NATIVE_ENTRYPOINT    =0x00000010,
    #COMIMAGE_FLAGS_TRACKDEBUGDATA       =0x00010000,
    #COMIMAGE_FLAGS_32BITPREFERRED       =0x00020000,

    $COMIMAGE_FLAGS_ILONLY        = 0x00000001;
    $COMIMAGE_FLAGS_32BITREQUIRED = 0x00000002;
    $COMIMAGE_FLAGS_32BITPREFERRED = 0x00020000;

    $offset = 96;
    if ($pe32 -eq 0x20b) {
        $offset = 112;#size of COFF header is bigger for pe32+
    }     

    $clr20dirHeaderOffset = $coffOffset + $offset + 14*8;#clr directory header offset + start of section number 15 (each section is 8 byte long);
    $Obj.Log += 'clr20dirHeaderOffset ' + "{0:X0}" -f $clr20dirHeaderOffset;
    $curr_offset = $b.BaseStream.Seek($clr20dirHeaderOffset, [System.IO.SeekOrigin]::Begin);
    [System.UInt32] $clr20VirtualAddress = $b.ReadUInt32();
    [System.UInt32] $clr20Size = $b.ReadUInt32();
    $Obj.Log += 'clr20VirtualAddress ' + "{0:X0}" -f $clr20VirtualAddress;
    $Obj.Log += 'clr20SectionSize ' + ("{0:D0}" -f $clr20Size) + " bytes";

    if ($clr20Size -eq 0) {
        if ($machineType -eq 0x1c0) { $Obj.Result = 'ARM native'; }
        elseif ($pe32 -eq 0x10b)    { $Obj.Result = '32-bit native'; }
        elseif($pe32 -eq 0x20b)     { $Obj.Result = '64-bit native'; }

       $b.Close();   
       if ($Obj.Result -eq '') { 
            $Obj.Error = $true;
            $Obj.Log += 'Unknown type of file';
       }
       else { 
            if ($showLog) { Write-Output ($Obj.Log | Format-List | Out-String); };
            return $Obj.Result;
       }
    };

    if ($Obj.Error) {
        $b.Close();
        Write-Host ($Obj.Log | Format-List | Out-String);
        return $false;
    };

    [System.UInt32]$sectionsOffset = $coffOffset + $sizeOfPeHeader;
    $Obj.Log += 'sectionsOffset ' + "{0:X0}" -f $sectionsOffset;
    $realOffset = GetActualAddressFromRVA $b $sectionsOffset $numOfSections $clr20VirtualAddress;
    $Obj.Log += 'real IMAGE_COR20_HEADER offset ' + "{0:X0}" -f $realOffset;
    if ($realOffset -eq 0) {
        $Obj.Error = $true;
        $Obj.Log += 'cannot find COR20 header - exit with error';
        $b.Close();
        return $false;
    };

    if ($Obj.Error) {
        $b.Close();
        Write-Host ($Obj.Log | Format-List | Out-String);
        return $false;
    };

    $curr_offset = $b.BaseStream.Seek($realOffset + 4, [System.IO.SeekOrigin]::Begin);
    [System.UInt16] $majorVer = $b.ReadUInt16();
    [System.UInt16] $minorVer = $b.ReadUInt16();
    $Obj.Log += 'IMAGE_COR20_HEADER version ' + ("{0:D0}" -f $majorVer) + "." + ("{0:D0}" -f $minorVer);

    $flagsOffset = 16;#+16 bytes - flags field
    $curr_offset = $b.BaseStream.Seek($realOffset + $flagsOffset, [System.IO.SeekOrigin]::Begin);
    [System.UInt32] $flag32bit = $b.ReadUInt32();
    $Obj.Log += 'CorFlags: ' + ("{0:X0}" -f $flag32bit);

#Description       C# compiler switch             PE type       machine corflags
#MSIL              /platform:anycpu (default)     PE32  x86     ILONLY
#MSIL 32 bit pref  /platform:anycpu32bitpreferred PE32  x86     ILONLY | 32BITREQUIRED | 32BITPREFERRED
#x86 managed       /platform:x86                  PE32  x86     ILONLY | 32BITREQUIRED
#x86 mixed         n/a                            PE32  x86     32BITREQUIRED
#x64 managed       /platform:x64                  PE32+ x64     ILONLY
#x64 mixed         n/a                            PE32+ x64  
#ARM managed       /platform:arm                  PE32  ARM     ILONLY
#ARM mixed         n/a                            PE32  ARM  

    $isILOnly = ($flag32bit -band $COMIMAGE_FLAGS_ILONLY) -eq $COMIMAGE_FLAGS_ILONLY;
    $Obj.Log += 'ILONLY: ' + $isILOnly;
    if ($machineType -eq 0x1c0) {#if ARM
        if ($isILOnly) { $Obj.Result = 'ARM managed'; } 
                  else { $Obj.Result = 'ARM mixed'; }
    }
    elseif ($pe32 -eq 0x10b) {#pe32
        $is32bitRequired = ($flag32bit -band $COMIMAGE_FLAGS_32BITREQUIRED) -eq $COMIMAGE_FLAGS_32BITREQUIRED;
        $is32bitPreffered = ($flag32bit -band $COMIMAGE_FLAGS_32BITPREFERRED) -eq $COMIMAGE_FLAGS_32BITPREFERRED;
        $Obj.Log += '32BIT: ' + $is32bitRequired;    
        $Obj.Log += '32BIT PREFFERED: ' + $is32bitPreffered 
        if     ($is32bitRequired  -and $isILOnly  -and $is32bitPreffered) { $Obj.Result = 'AnyCpu 32bit-preffered'; }
        elseif ($is32bitRequired  -and $isILOnly  -and !$is32bitPreffered){ $Obj.Result = 'x86 managed'; }
        elseif (!$is32bitRequired -and !$isILOnly -and $is32bitPreffered) { $Obj.Result = 'x86 mixed'; }
        elseif ($isILOnly)                                                { $Obj.Result = 'AnyCpu'; }
   }
   elseif ($pe32 -eq 0x20b) {#pe32+
        if ($isILOnly) { $Obj.Result = 'x64 managed'; } 
                  else { $Obj.Result = 'x64 mixed'; }
   }

   $b.Close();   
   if ($showLog) { Write-Host ($Obj.Log | Format-List | Out-String); }
   if ($Obj.Result -eq ''){ return 'Unknown type of file';};
   $flags = '';
   if ($isILOnly) {$flags += 'ILONLY';}
   if ($is32bitRequired) {
        if ($flags -ne '') {$flags += ' | ';}
        $flags += '32BITREQUIRED';
   }
   if ($is32bitPreffered) {
        if ($flags -ne '') {$flags += ' | ';}
        $flags += '32BITPREFERRED';
   }
   if ($flags -ne '') {$flags = ' (' + $flags +')';}
   return $Obj.Result + $flags;
}

用法示例:

#$filePath = "C:\Windows\SysWOW64\regedit.exe";#32 bit native on 64bit windows
$filePath = "C:\Windows\regedit.exe";#64 bit native on 64bit windows | should be 32 bit native on 32bit windows

Get-Bitness2 $filePath $true;

如果您不需要查看详细信息,可以省略第二个参数

于 2016-11-22T10:52:19.143 回答
2

此处描述了一种快速且可能很脏的方法:https ://superuser.com/a/889267 。您在编辑器中打开 DLL 并检查“PE”序列之后的第一个字符。

于 2016-12-05T08:21:24.557 回答
1

由于第三方工具总是安装在%Program files (x86)%(即使是 x64 安装!)并且需要适当的 x32|x64 fortran 运行时才能正确运行,所以我将c++powershell%path%解决方案收集到 matlab 中以返回:

  • 种类Executable|Library|Other
  • 代码类型Native|Mixed|Managed
  • 平台x32|x64|AnyCpu|x32Preferred|Other

一旦在内存中有原始的 PE 结构,它应该很容易适应其他语言。

function [simplifiedInfo] = GetPortableExecutableSimplifiedInfo(filename)
%[
    % Checking arguments
    if (nargin <1), error('MATLAB:minrhs', 'Not enough input argments.'); end

    % Initializing simplified info    
    simplifiedInfo.Kind = 'Other';
    simplifiedInfo.CodeType = 'Other';
    simplifiedInfo.Platform = 'Other';

    % Obtaining raw info
    [rawInfo, PEConstants] = GetPortableExecutableRawInfo(filename);

    % Determining 'Kind' of PE
    if (isfield(rawInfo, 'PEOptionalHeader') && (rawInfo.COFFHeader.Characteristics.IMAGE_FILE_EXECUTABLE_IMAGE))
        if (rawInfo.COFFHeader.Characteristics.IMAGE_FILE_DLL)
            simplifiedInfo.Kind = 'Library';
        else
            simplifiedInfo.Kind = 'Executable';
        end
    else
        % No optional header or no IMAGE_FILE_EXECUTABLE_IMAGE flag ... 
        % Maybe just .obj or other thing
        simplifiedInfo.Kind = 'Other';
    end

    % Determining 'CodeType'
    % NB: 'COR20Header' is present for MSIL code, but not for native code
    if (isfield(rawInfo, 'COR20Header'))
        if (rawInfo.COR20Header.Flags.COMIMAGE_FLAGS_ILONLY)
            simplifiedInfo.CodeType = 'Managed';
        else
            simplifiedInfo.CodeType = 'Mixed';
        end
    else
        simplifiedInfo.CodeType = 'Native';
    end

    % Determining platform
    if (rawInfo.COFFHeader.Machine == PEConstants.IMAGE_FILE_MACHINE_AMD64)
        simplifiedInfo.Platform = 'x64';
    elseif (rawInfo.COFFHeader.Machine == PEConstants.IMAGE_FILE_MACHINE_I386)
        if (isfield(rawInfo, 'COR20Header'))
            % PE contains MSIL code, need more checks
            if (rawInfo.COR20Header.Flags.COMIMAGE_FLAGS_32BITREQUIRED)
                if (rawInfo.COR20Header.Flags.COMIMAGE_FLAGS_32BITPREFERRED)
                    simplifiedInfo.Platform = 'x32Preferred';
                else
                    simplifiedInfo.Platform = 'x32';
                end
            else
                simplifiedInfo.Platform = 'AnyCpu';
            end
        else
            % This is native code so ...
            simplifiedInfo.Platform = 'x32';
        end
    else
        % ARM, ...
        simplifiedInfo.Platform = 'Other';
    end
%]
end

内部函数的源代码GetPortableExecutableRawInfo可以在这里获得。

于 2021-04-16T08:16:32.360 回答
0

显然,您可以在可移植可执行文件的标头中找到它。corflags.exe 实用程序能够显示它是否针对 x64。希望这可以帮助您找到有关它的更多信息。

于 2009-01-26T17:59:10.067 回答