patch to VBoxDD.cpp for VirtualBox 3.2.0

[xonox]

VirtualBox 3.2.0 crashes with the VBoxDD.dll currently available in http://virtualkd.sysprogs.org/VBoxPatch-3.1.0.zip. I patched VBoxDD.cpp and recompiled it against the VirtualBox 3.2.0 sources to get it working again. Because I am not sure what license applies to VirtualKD I’ll refrain from uploading the compiled DLLs somewhere and just post the diff of the changes here:

--- VirtualKD-2.3-sources.orig/VBoxDD/VBoxDD.cpp        2009-06-07 16:31:54.000000000 +0200
+++ VirtualKD-2.3-sources/VBoxDD/VBoxDD.cpp     2010-05-21 18:45:04.760667800 +0200
@@ -12,7 +12,7 @@
{
if (!s_pOriginalDevReg)
return VINF_OBJECT_DESTROYED;
-       pDevIns->pDevReg = s_pOriginalDevReg;

+       pDevIns->pReg = s_pOriginalDevReg;

int rc = s_pOriginalDevReg->pfnConstruct(pDevIns, iInstance, pCfgHandle);

if (!RT_SUCCESS(rc))

return rc;

@@ -29,29 +29,29 @@

DevRegisterCallbacksHook(const PDMDEVREGCB &Callbacks) : PDMDEVREGCB(Callbacks)

{

pfnRegister = &RegisterOverride;

-               pfnMMHeapAlloc = &AllocOverride;

+//             pfnMMHeapAlloc = &AllocOverride;

}



-       static int RTCALL RegisterOverride(PPDMDEVREGCB pCallbacks, PCPDMDEVREG pDevReg)

+       static int RTCALL RegisterOverride(PPDMDEVREGCB pCallbacks, PCPDMDEVREG pReg)

{

-               if (pDevReg)

+               if (pReg)

{

-                       if (!strcmp(VIRTUALKD_HOOKED_VBOX_DEVICE_NAME, pDevReg->szDeviceName))

+                       if (!strcmp(VIRTUALKD_HOOKED_VBOX_DEVICE_NAME, pReg->szName))

{

-                               PPDMDEVREG pReg = new PDMDEVREG();

-                               *pReg = *pDevReg;

-                               s_pOriginalDevReg = pDevReg;

-                               pReg->pfnConstruct = ConstructOverride;

-                               pDevReg = pReg;

+                               PPDMDEVREG pMyReg = new PDMDEVREG();

+                               *pMyReg = *pReg;

+                               s_pOriginalDevReg = pReg;

+                               pMyReg->pfnConstruct = ConstructOverride;

+                               pReg = pMyReg;

}

}

-               return ((DevRegisterCallbacksHook *)pCallbacks)->pOriginalCallbacks->pfnRegister(((DevRegisterCallbacksHook *)pCallbacks)->pOriginalCallbacks, pDevReg);

+               return ((DevRegisterCallbacksHook *)pCallbacks)->pOriginalCallbacks->pfnRegister(((DevRegisterCallbacksHook *)pCallbacks)->pOriginalCallbacks, pReg);

}



-       static void * RTCALL AllocOverride(PPDMDEVREGCB pCallbacks, size_t cb)

-       {

-               return ((DevRegisterCallbacksHook *)pCallbacks)->pOriginalCallbacks->pfnMMHeapAlloc(((DevRegisterCallbacksHook *)pCallbacks)->pOriginalCallbacks, cb);

-       }

+//     static void * RTCALL AllocOverride(PPDMDEVREGCB pCallbacks, size_t cb)

+//     {

+//             return ((DevRegisterCallbacksHook *)pCallbacks)->pOriginalCallbacks->pfnMMHeapAlloc(((DevRegisterCallbacksHook *)pCallbacks)->pOriginalCallbacks, cb);

+//     }

};



extern "C"

P.S.: I couldn’t find any documentation about the pfnMMHeapAlloc callback removal, i.e. I am not sure if this fubars VirtualBox’ memory management… You probably do not want to use this in a production environment.
HTH, HAND

[Anonymous]

Can you post the updated binary VBoxDD.dll? Thanks.

[xonox]

In the hope that nobody cares about licensing or copyright issues, here is my latest build for VirtualBox 3.2.6:

http://rapidshare.com/files/405324229/VBoxPatch-3.2.6.zip

Cheers, xonox

[Anonymous]

Thanks

[Author]

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