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Windows-Research-Kernel-WRK-

Windows Research Kernel Source Code

You may only use this code if you agree to the terms of the Windows Research Kernel Source Code License agreement (see License.txt). If you do not agree to the terms, do not use the code.

WRK v1.2

The Windows Research Kernel v1.2 contains the sources for the core of the Windows (NTOS) kernel and a build environment for a kernel that will run on x86 (Windows Server 2003 Service Pack 1) and amd64 (Windows XP x64 Professional) A future version may also support booting WRK kernels on Windows XP x86 systems, but the current kernels will fail to boot due to differences in some shared structures.

The NTOS kernel implements the basic OS functions for processes, threads, virtual memory and cache managers, I/O management, the registry, executive functions such as the kernel heap and synchronization, the object manager, the local procedure call mechanism, the security reference monitor, low-level CPU management (thread scheduling, Asynchronous and Deferred Procedure calls, interrupt/trap handling, exceptions), etc.

The NT Hardware Abstraction Layer, file systems, network stacks, and device drivers are implemented separately from NTOS and loaded into kernel mode as dynamic libraries. Sources for these dynamic components are not included in the WRK, but some are available in various development kits published by Microsoft, such as the Installable File System (IFS) Kit and the Windows Driver Development Kit (DDK).

WRK v1.2 includes most of the NTOS kernel sources from the latest released version of Windows, which supports the AMD64 architecture on the Desktop. The kernel sources excluded from the kit are primarily in the areas of plug-and-play, power management, the device verifier, kernel debugger interface, and virtual dos machine. The primary modifications to WRK from the released kernel are related to cleanup and removal of server support, such as code related to the Intel IA64.

Organization of the WRK sources

The file License.txt contains the license covering use of the WRK.

The public\ directory contains a number of include files shared among system components. base\ntos\ contains the NTOS sources.

The primary NTOS source components included in the WRK are organized as follows:

cache\  - cache manager
config\ - registry implementation
dbgk\   - user-mode debugger support
ex\     - executive functions (kernel heap, synchronization, time)
fsrtl\  - file system run-time support
io\     - I/O manager
ke\     - scheduler, CPU management, low-level synchronization
lpc\    - local procedure call implementation
mm\     - virtual memory manager
ob\     - kernel object manager
ps\     - process/thread support
se\     - security functions
wmi\    - Windows Management Instrumentation

inc\    - NTOS-only include files
rtl\    - kernel run-time support
init\   - kernel startup

Copying and building the WRK

WRK can be built on Windows Server 2003 or later, or on Windows XP or later.

To copy WRK to your machine:

open a console window;
switch to DVD;
switch to \Resources\Windows_Research_Kernel\Get_WRK;
run WRKCopy.bat /w <destination_directory> (if you run WRKCopy.bat without parameters, WRK will be copied to C:\WRK-v1.2); ALTERNATIVELY
open Windows Explorer (MyComputer);
create the destination directory on your hard drive;
switch to DVD;
navigate to \Resources\Windows_Research_Kernel\Get_WRK\WRK-v1.2;
select all files and subdirectories, drag and drop them to the destination directory.

To adjust the WRK environment setting batch file:

open console window;
switch to the directory WRK was copied to;
run Notepad WRKEnv.bat;
make sure the "set path=..." statement contains the directory WinDbg was installed to; (unchanged WRKEnv.bat refers to default directory C:\Program Files\Debugging Tools for Windows);
save the file and exit Notepad.

To build WRK from command line:

open console window;
switch to the directory WRK was copied to;
run Build <arch> (or Rebuild <arch> or Clean <arch>), see note about <arch> below; ALTERNATIVELY
open console window;
switch to the directory WRK was copied to;
run WRKEnv <arch>, see note about <arch> below;
switch to base\ntos;
run nmake %wrkarch%=

To build WRK in Visual Studio 2008 environment:

start VS2008;
open solution <WRK_DIR>\WRK.sln, where <WRK_DIR> is the directory WRK was copied to;
make sure the configuration is amd64/Win32 or x86/Win32, as is appropriate;
select Build/Build Solution (or Rebuild Solution, or Clean Solution).

To start Windows Debugger from command line:

open console window;
switch to the directory WRK was copied to;
run WRKDebug <arch>, see note about <arch> below; ALTERNATIVELY
open console window;
switch to the directory WRK was copied to;
run WRKEnv <arch>, see note about <arch> below;
run WinDbg %windbgargs%

NOTE ABOUT <ARCH>

Batch files Build.bat, Rebuild.bat, Clean.bat, WRKEnv.bat and WRKDebug.bat take one parameter – target architecture, which is x86 or amd64.

For the first use of either of these batch files, default target architecture is x86.

Once the target architecture was defined (explicitly or by default), it cannot be changed for current console window, and <arch> parameter of the batch files is ignored.

The title of the window where the WRK environment has been set to some target architecture changes to “WRK x86” or “WRK amd64”.

To work with different target architecture, open another console window.