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Writing a kd/WinDbg Debugger Extension DLL


December 1998/Writing a kd/WinDbg Debugger Extension DLL/Listing 3

Listing 3: wdjext.c — Support code for building debugger extensions

// This is boilerplate code that can be included in any WinDbg
// kernel debugger extension project.
//

// includes <wdbgexts.h> and other required headers and definitions
#include "wdjexts.h"    

// note that the name of the following variable is important,
// because the macros in <wdbgexts.h> assume it is ExtensionApis.
WINDBG_EXTENSION_APIS ExtensionApis;    
USHORT MjVersion;
USHORT MnVersion;

// WinDbgExtensionDllInit() is called when the debugger loads
// your extension DLL.
VOID
WDBGAPI
WinDbgExtensionDllInit(
    PWINDBG_EXTENSION_APIS lpExtensionApis,
    USHORT                 MajorVersion,
    USHORT                 MinorVersion
    )
{
    ExtensionApis = *lpExtensionApis;   // structure copy
    MjVersion = MajorVersion;
    MnVersion = MinorVersion;
}

// ExtensionApiVersion() is called by the debugger to insure that
// your routines were written to a compatibile interface version.
EXT_API_VERSION Version = { 3, 5, EXT_API_VERSION_NUMBER, 0 };

LPEXT_API_VERSION
WDBGAPI
ExtensionApiVersion()
{
    return &Version;
}

// Feel free to uncomment the next function if need be.  See the
// article text for discussion of this function.
//ULONG
//WDBGAPI
//CheckVersion()
//{
//      return (ULONG)1;        // who knows?
//}
//End of File

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