dumpbin介绍

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1. SUMMARY

The DUMPBIN utility, which is provided with the 32-bit version of Microsoft Visual C++, combines the abilities of the LINK, LIB, and EXEHDR utilities. The combination of these tools features the ability to provide information about the format and symbols provided in executable, library, and DLL files.

This article provides a brief overview of some options and output produced by the DUMPBIN utility. For more information about the DUMPBIN tool, consult your product documentation.

2. MORE INFORMATION

The DUMPBIN command line options are listed below. Some of the output each option provides is also listed.

/ALL Displays all available information except code disassembly. Use the /DISASM option to display disassembly. You can use /RAWDATA:NONE with the /ALL option to omit the raw binary details of the file.

Because the /ALL option is simply a combination of all the other options, an example is not needed.

/ARCHIVEMEMBERS Displays minimal information about member objects in a library.

The size of the output file depends on the number of object modules in the library. The following is part of the output from the Scrnsave.lib file:

Archive member name at 582: /0        ../../common/retail/scrnsave.obj

2FF359CC time/date Thu Jun 29 18:56:28 1995

         uid

         gid

  100666 mode

    214A size

correct header end

/DISASM Displays disassembly of code sections, using symbols if present in the file.

The following is part of the disassembly code from the Lib.exe file:

00401000: 8B 44 24 08        mov         eax,dword ptr [esp+8]

00401004: 68 00 20 40 00     push        402000h

00401009: 8B 4C 24 08        mov         ecx,dword ptr [esp+8]

0040100D: 50                 push        eax

0040100E: 51                 push        ecx

0040100F: E8 0C 00 00 00     call        00401020

00401014: 33 C0              xor         eax,eax

00401016: C3                 ret

00401017: CC                 int         3

/EXPORTS Displays all definitions exported from an executable file or DLL.

MFC40.DLL produces the following export information:

Section contains the following Exports for MFC40.DLL

          0 characteristics

   30733286 time date stamp Wed Oct 04 18:19:02 1995

       0.00 version

          1 ordinal base

       5782 number of functions

          4 number of names



ordinal hint   name



      2    0   DllCanUnloadNow  (00096182)

      1    1   DllGetClassObject  (0009611E)

      3    2   DllRegisterServer  (000961DB)

      4    3   DllUnregisterServer  (00096242)

/FPO Displays frame pointer optimization (FPO) records.

One of the MFC libraries, Nafxis.lib, provided us with some examples of frame pointer optimization records:

FPO Data (1)

                                       Use Has  Frame

 Address  Proc Size   Locals   Prolog  BP  SEH  Type   Params

00000000          9        0        0   N   N    fpo        0



FPO Data (1)

                                       Use Has  Frame

 Address  Proc Size   Locals   Prolog  BP  SEH  Type   Params

00000000         11        0        0   N   N    fpo        C



FPO Data (1)

                                       Use Has  Frame

 Address  Proc Size   Locals   Prolog  BP  SEH  Type   Params

00000000          3        0        0   N   N    fpo        0

/HEADERS Displays the file header and the header for each section. When used with a library, it displays the header for each member object.

This information was displayed from the Resource Compiler, Rc.exe:

FILE HEADER VALUES

     14C machine (i386)

       6 number of sections

306F7A22 time date stamp Sun Oct 01 22:35:30 1995

       0 file pointer to symbol table

     1D1 number of symbols

      E0 size of optional header

     302 characteristics

            Executable

            32 bit word machine

            Debug information stripped



OPTIONAL HEADER VALUES

     10B magic #

    2.60 linker version

    1E00 size of code

    1E00 size of initialized data

       0 size of uninitialized data

    1144 address of entry point

    1000 base of code

    3000 base of data

         ----- new -----

 2BB0000 image base

    1000 section alignment

     200 file alignment

       3 subsystem (Windows CUI)

    4.00 operating system version

    4.00 image version

    3.50 subsystem version

    8000 size of image

     400 size of headers

    62C8 checksum

  100000 size of stack reserve

    1000 size of stack commit

  100000 size of heap reserve

    1000 size of heap commit

       0 [       0] address [size] of Export Directory

    5000 [      3C] address [size] of Import Directory

    6000 [     394] address [size] of Resource Directory

       0 [       0] address [size] of Exception Directory

       0 [       0] address [size] of Security Directory

    7000 [     21C] address [size] of Base Relocation Directory

    3030 [      38] address [size] of Debug Directory

       0 [       0] address [size] of Description Directory

       0 [       0] address [size] of Special Directory

       0 [       0] address [size] of Thread Storage Directory

       0 [       0] address [size] of Load Configuration Directory

     268 [      44] address [size] of Bound Import Directory

    50A0 [      64] address [size] of Import Address Table Directory

       0 [       0] address [size] of Reserved Directory

       0 [       0] address [size] of Reserved Directory

       0 [       0] address [size] of Reserved Directory



SECTION HEADER #1

   .text name

    1D24 virtual size

    1000 virtual address

    1E00 size of raw data

     400 file pointer to raw data

       0 file pointer to relocation table

    3C20 file pointer to line numbers

       0 number of relocations

     37E number of line numbers

60000020 flags

         Code

         (no align specified)

         Execute Read

/IMPORTS Displays all definitions imported to an executable file or DLL.

The output displayed here is similar to the /EXPORTS output.

/LINENUMBERS Displays COFF line numbers. Line numbers exist in an object file if it was compiled with the Program Database (/Zi), C7 Compatible (/Z7), or Line Numbers Only (/Zd) switches. An executable file or DLL contains COFF line numbers if it was linked with the Generate Debug Info (/DEBUG) and COFF Format (/DEBUGTYPE:COFF) options.

An application generated using AppWizard displays line information data such as the following:

LINENUMBERS #1

   1E90   13     1ECD   13     1EF7   13     1F16   13     1F31   15

   1F46   15     1F61   24     1F9A   27     1FD0   2A     2001   2B

/LINKERMEMBER[:{1|2}] Displays public symbols defined in a library. Specify the 1 argument to display symbols in object order, along with their offsets. Specify the 2 argument to display offsets and index numbers of objects, and then list the symbols in alphabetical order, along with the object index for each. To get both outputs, specify /LINKERMEMBER without the number argument.

Winmmm.lib, the Windows Multimedia library, was used to get the following sample of DUMPBIN output.

Archive member name at 8: / 

2FB537E1 time/date Sat May 13 15:51:13 1995

         uid

         gid

       0 mode

    2864 size

correct header end



    391 public symbols



     556C _CloseDriver@12

     58A0 _DefDriverProc@20

     5BDC _DriverCallback@28

     5F1C _DrvGetModuleHandle@4

     626A _GetDriverModuleHandle@4

     65C4 _NotifyCallbackData@20

     6914 _OpenDriver@12

     6C44 _PlaySound@12

     6F70 _PlaySoundA@12

     72A0 _PlaySoundW@12

/OUT:filename Specifies a filename for the output. By default, DUMPBIN displays the information to standard output.

/RAWDATA[:{BYTES|SHORTS|LONGS|NONE}[,number]] Displays the raw contents of each section in the file. The arguments control the format of the display, as shown below:

Argument    Result



BYTES      The default. Contents are displayed in hexadecimal bytes,

           and also as ASCII characters if they have a printed

           representation.

SHORTS     Contents are displayed as hexadecimal words.

LONGS      Contents are displayed as hexadecimal longwords.

NONE       Raw data is suppressed. This argument is useful to control

           the output of /ALL.

number     Displayed lines are set to a width that holds <number> values

           per line.

The information generated with this option is quite large, this is a small sample of output from an AppWizard application using the LONGS format:

RAW DATA #1

00000000  53EC8B55 00A15756 | E9004058 00000000      U[ASCII 239]_SVW[ASCII

237].|X@._...._

00000010  C95B5E5F EC8B55C3 | 5304EC83 4D895756      _^[++U[ASCII

239]_|[ASCII 226]_.SVW[ASCII 235]M_

00000020  3058B8FC 00E90040 | 5F000000 C3C95B5E      n+X0@._.|..._^[++_

/RELOCATIONS Displays any relocations in the object or image.

Below is a small portion of the relocation output obtained from an AppWizard application:

BASE RELOCATIONS #6



    1000 virtual address,       B0 SizeOfBlock

       7 HIGHLOW

      22 HIGHLOW

      36 HIGHLOW

      67 HIGHLOW

      89 HIGHLOW

/SECTION:section Restricts the output to information on the specified section.

/SUMMARY Displays minimal information about sections, including total size. This option is the default if no other option is specified.

Microsoft (R) COFF Binary File Dumper Version 3.00.5270

Copyright (C) Microsoft Corp 1992-1995. All rights reserved.



Dump of file tracer.exe



File Type: EXECUTABLE IMAGE



     Summary



        1000 .data

        1000 .idata

        1000 .rdata

        1000 .reloc

        1000 .rsrc

        1000 .text

/SYMBOLS Displays the COFF symbol table. Symbol tables exist in all object files. A COFF symbol table appears in an image file only if it is linked with the Generate Debug Info and COFF Format options under Debug Info on the Debug category for the linker (or the /DEBUG and /DEBUGTYPE:COFF options on the command line).

An AppWizard application was used to obtain the following example:

COFF SYMBOL TABLE

000 000065D0 SECT5  notype       Static       | .rsrc$02

001 00000011 DEBUG  notype       Filename     | .file

 C:/code/test/testView.cpp

004 000041A0 SECT3  notype       Static       | $SG23289

005 00004018 SECT3  notype       Static       | _$S189$S23301

006 00004168 SECT3  notype       Static       | _THIS_FILE$S23282

007 00001E90 SECT1  notype       Static       | .text

 Section length  2DE, #relocs   27, #linenums   22

009 00001EE2 SECT1  notype ()    Static       | _$E188

00A 00001EF7 SECT1  notype ()    Static       | _$E187

 tag index 0000002E size 0000001F lines 000012DF next function 00000033

00C 000042AC SECT3  notype       Static       | __init_CTestView$S23291

00D 00003998 SECT2  notype       Static       | $T23440

00E 00003978 SECT2  notype       Static       | $T23438

00F 000039C0 SECT2  notype       Static       | $T23447

010 000039A0 SECT2  notype       Static       | $T23446

011 00000021 DEBUG  notype       Filename     | .file

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