3GL   4GL   5GL  

?

  1. Windows-
  2. Windows 2000
  3. Windows 2000
  4. MinDBG: Win32
  5. WDBG:
  6. ,
  7. Step Into, Step Over Step Out
  8. WDBG
  9. , ?
  10. WDBG: ?

. , . , , , . , Win32 (32- Windows Microsoft).

, , - . , 32- Windows, . , -. (MinDBG) , . (WDBG) Microsoft Windows, , , , , (GUI). WDBG , , , (symbol files).

, , : ( ) (debugger) (debuggee). , , , , . , .

 

Windows-

Windows, , , , . Windows : (user-mode debuggers) (kernel-mode debuggers).

. , (user-mode applications). Microsoft Visual C++. , , , . , ( , ) .

 

, , GUI-, , (services) Windows 2000. , (GUI1). ( API) Win32. " ", , , , API- IsDebuggerPresent.

API Win32 : API ( , , ), . , , . ( -).

 GUI Graphical User Interface. .

(run-time) , , , API Win32. : Java- (JVM) Microsoft Sun, Web- Microsoft, - Microsoft Visual Basic.

Visual Basic 7, , - Visual Basic . Java , . Microsoft JVM "Debugging and Profiling Java Applications" ( Java) MSDN. JVM. MSDN "Active Script Debugging API Objects" ( API-). JVM, .

API Win32 . : Visual C++, 5 6; Windows (WinDBG), ( ); BoundsChecker Compuware NuMega; Platform SDK HeapWalker; Platform SDK Depends; Borland Delphi C++ Builder, NT Symbolic Debugger (NTSD). , .

 

CPU . , , , . , , . -, , ( " SoftlCE" ), .

. : Windows 80386 Debugger (WDEB386), Kernel Debugger (1386KD), WinDBG SoftlCE. .

WDEB386

WDEB386 Windows 98, Platform SDK. , Windows 98 (VxD). Windows, WDEB386 - . , , , , .

WDEB386 . Microsoft Windows 3.0. , , Visual C++ Visual Basic.

"" (DOT) WDEB386. INT 41 WDEB386 . VxD- , . Windows 98 DOT-, .

I386KD

Windows 2000 Windows 98 , NTOSKRNL.EXE Windows 2000. (), () . , /DEBUG BOOT.INI , , /DEBUGPORT, , (1). I386KD Windows 2000 -.

NTOSKRNL.EXE , CPU, . , 1386KD. Windows NT 4 Device Driver Kit (DDK) , -. Microsoft .

1386KD , , Windows 2000. Windows 2000 . , i386KD , , .

Win DBG

WinDBG , Platform SDK. http://msdn.microsoft.com/developer/sdVdebidt.asp. , , , WinDBG . WinDBG i386KD, GUI-, . WinDBG , .

WinDBG , , . WinDBG , Visual C++, , . : WinDBG , Visual C++. WinDBG. , Visual C++. , , 70% Visual C++, WinDBG.

WinDBG , (Command). Visual C++, WinDBG . WinDBG . , , Command , GUI-.

WinDBG , , WinDBG-. Visual C++ , WinDBG API-, , , . WinDBG- "Debugger Extension" ( ) MSDN.

WinDBG, Visual C++, WinDBG . . . , , .

WinDBG , , . Command , .

, Visual C++, WinDBG , , Windows 2000 Windows NT 4: WinDBG , Dr. Watson. , , . , , "Bugslayer" "Microsoft Systems Journal" 1999 2000.

, WinDBG , Visual C++. , WinDBG. , , , Visual C++. WinDBG , .

SoftICE

SoftICE Compuware NuMega. , , . , , SoftICE . , CPU . SoftICE CPU , , .

, , SoftICE . : " , , ?" API-, SendMessageTimeout, -, GUI-. SoftICE, "" , , SendMessageTimeout, , SoftICE. SoftICE , . , SoftICE , , , .

SoftICE CPU , . - , . , , SoftICE .

SoftICE , . SoftICE 1386, 4- . , , . SoftICE , . , .

SoftICE, , , , , . 1386KD WinDBG , SoftICE . SoftICE HWND- .

, - . , SoftICE , , , . .

, ?

Windows 2000 , , ,

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion \AeDebug

Windows 98 "" [AeDebug] WIN.INI. ( ) , Windows 2000 . - , Windows 2000

, . Windows 98 , Details, , .

(Windows 2000) [AeDebug] (Windows 98) :

Auto

Debugger

UserDebuggerHotKey

Auto 0, Cancel (Windows 2000) Debug (Windows 98) , . Auto 1, . Debugger , . : . UserDebuggerHotKey , . , " " .

AeDebug , Dr. Watson ( Windows 2000), WinDBG Visual C++ . Dr. Watson WinDBG -I, . Visual C++ , , Just-In-Time Debugging Debug Options ( ToolsjOptions... IDE Microsoft Visual C++).

AeDebug, , , Debugger, , , API- wsprintf:

drwtsn32 -p %d -e  %d -g

-p (ID) , - , , . , .

 

Windows 2000

Windows 2000 API-, . , , . .

 

Windows 2000

, Windows 2000 (debug heap) . heap- - . API- HeapCreate. ("") - 15. heap- Windows 2000 , , . , , heap- Windows 2000 .

, , HeapFree, "". 4-1 , . , , DebugBreak ( HeapFree). , , heap- .

HEAP[Heaper.exe]: Heap block at 00441E98 modified at 00441EAA past

requested size of a

  HEAP[Heaper.exe]: Invalid Address specified to

RtlFreeHeapt 440000, 441eaO)

, - .

Windows 2000 2 heap-, , . Platform SDK GFLAGS.EXE. , . , HEAPER.EXE, . 4.1. 

 Heap - "", . .

, . . , HeapCreate. .

  CD. .

, , 4-1. .

System Registry Kernel Mode Destination Global Flags . , . Destination Image File Options , ( Image File Name).

. 4.1. GFLAGS.EXE

4-1. heap- Windows 2000 

void main(void)

// heap- . 

HANDLE hHeap = HeapCreate ( 0, 128, 0) ;

// 10 . 

LPVOID pMem = HeapAlloc ( hHeap, 0, 10);

// 12 10- ( heap-).

 memset ( pMem, OxAC, 12);

// 20 . 

LPVOID pMem2 = HeapAlloc ( hHeap, 0, 20);

// 1 .

char * pUnder = (char *)( (DWORD)pMem2 - 1);

*pUnder = 'P';

// . HeapFree

 // heap-

 // .

 HeapFree ( hHeap, 0, pMem);

// . ,

 //

 HeapFree ( hHeap, 0, pMem2);

// . ,

 //

 HeapFree ( hHeap, , (LPVOID)Oxl); HeapDestroy ( hHeap); 

}

, . 4.1, HEAPER.EXE, , :

PAGEHEAP: process 0x490 created debug heap 00430000

(flags 0xl, 50, 25, 0, 0) 

PAGEHEAP: process 0x490 created debug heap 00CF0000

(flags Oxl, 50, 25, 0,- 0) 

PAGEHEAP: process 0x490 created debug heap 01600000

(flags Oxl, 50, 25, 0, 0)

  PAGEHEAP: Tail fill corruption detected:

 Allocation at 0x01606FF0

 Requested size 0x0000000A 

Allocated size 0x00000010

 Corruption at Ox01606FFA 

PAGEHEAP: Attempt to reference block which is not allocated

, Global Flags.

GFLAGS.EXE, Show Loader Snaps. , , (snap) , , Windows 2000 DLL- . , Windows 2000 ( , ), . "Under the Hood" Microsoft Systems Journal 1999 .

 

, . Windows 2000 (out-of-process) - ( out-of-process servers). , API- DebugBreak. , , . -, Windows 2000. , DebugBreak , , , - , Windows 2000 . -, DebugBreak , -. DebugBreak, - -. , Windows 2000 , . . , Windows 2000, , Windows 2000.

. GFLAGS.EXE Image File Options (. . 4.1). Image File Name Debugger Image Debugger Options) .

: ( RegEdit).

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NTXCurrent Version\Image Tile Execution Options

, . , FOO.EXE, FOO.EXE. Debugger. ( ) . GFLAGS.EXE , GiobaiFiag.

. Debugger ( ). , WinDBG , WinDBG, Debugger d:\platform sdk\bin\windbg.exe -g.

 

. , <Ctrl>+<C> <Ctrl>+<Break> ( DBG_CONTROL_C) . .

Windows 2000, Windows NT 4 GUI-. <F12> ( ) DebugBreak. , , - , .

Windows NT 4 <F12> , Windows 2000 , .

HKEY_LOCAL_MACHINE\SOFTWARE\ Microsoft\WindowsNT\CurrentVersion\AeDebug

userDebuggerHotKey (VK_*). , <Scroll Lock> , UserDebuggerHotKey 0x91. .

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