dumbpin을 이용하여 dll, exe가 32bit인지 64bit인지 확인하기

dumpbin은 MS에서 제공하는 COFF/PE의 내용을 확인할 수 있는 CLI 프로그램으로 /HEADERS 옵션으로 파일의 헤더를 확인할 수 있다.

Header를 확인해 보면 해당 Dll 이나 Exe 파일이 32bit인지 64bit인지 확인할 수 있다.



32비트의 경우

D:\>dumpbin /HEADERS cv100.dll | more
Microsoft (R) COFF/PE Dumper Version 11.00.61030.0
Copyright (C) Microsoft Corporation.  All rights reserved.


Dump of file cv100.dll

PE signature found

File Type: DLL

FILE HEADER VALUES
             14C machine (x86)
               6 number of sections
        45366940 time date stamp Thu Oct 19 02:49:52 2006
               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

OPTIONAL HEADER VALUES
             10B magic # (PE32)
            6.00 linker version
-- More  --

64비트의 경우

D:\>dumpbin /HEADERS cv100_64.dll | more
Microsoft (R) COFF/PE Dumper Version 11.00.61030.0
Copyright (C) Microsoft Corporation.  All rights reserved.


Dump of file cv100_64.dll

PE signature found

File Type: DLL

FILE HEADER VALUES
            8664 machine (x64)
               6 number of sections
        457E6508 time date stamp Tue Dec 12 17:15:04 2006
               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

OPTIONAL HEADER VALUES
             20B magic # (PE32+)
            8.00 linker version
-- More  --

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Original Post : http://neodreamer-dev.tistory.com/731

Visual C++ 에서 64비트 정수 출력하기

__int64    i64 = 0x12341234abcdabcd;

char szDispBuf[1024];

sprintf_s( szDispBuf, 1024, 
    "%%d => %d \n"
    "%%o => 0%o \n"
    "%%x => 0x%x \n"
    "%%X => 0x%X \n"
    "%%I64d => %I64d \n"
    "%%I64o => 0%I64o \n"
    "%%I64x => 0x%I64x \n"
    "%%I64X => 0x%I64X \n"
    , i64, i64, i64, i64, i64, i64 );

TRACE("%s \n", szDispBuf );
    
Output:
%d => -1412584499 
%o => 02215011064 
%x => 0xabcdabcd 
%X => 0x12341234 
%I64d => 1311693408901639117 
%I64o => 0110640443225363325715 
%I64x => 0x12341234abcdabcd 
%I64X => 0x12341234ABCDABCD    
<

Original Post : http://neodreamer-dev.tistory.com/465