118 lines
2.4 KiB
C
118 lines
2.4 KiB
C
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/*++
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Copyright (c) 1995-1996 Microsoft Corporation
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Module Name:
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PXDebug.c
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Abstract:
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This module contains all debug-related code.
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Revision History:
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Who When What
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-------- -------- ----------------------------------------------
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rmachin 11-01-96 stolen from ArvindM's cmadebug file
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TonyBe 02-21-99 re-work/re-write
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Notes:
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--*/
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#include <precomp.h>
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#define MODULE_NUMBER MODULE_DEBUG
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#define _FILENUMBER 'BDXP'
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#if DBG
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ULONG PXDebugLevel = PXD_ERROR;
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ULONG PXDebugMask = PXM_ALL;
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LIST_ENTRY PxdMemoryList;
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ULONG PxdAllocCount = 0; // how many allocated so far (unfreed)
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NDIS_SPIN_LOCK PxdMemoryLock;
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BOOLEAN PxdInitDone = FALSE;
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PVOID
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PxAuditAllocMem(
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PVOID pPointer,
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ULONG Size,
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ULONG Tag,
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ULONG FileNumber,
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ULONG LineNumber
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)
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{
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PVOID pBuffer = NULL;
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PPXD_ALLOCATION pAllocInfo;
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NDIS_STATUS Status;
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if(!PxdInitDone) {
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NdisAllocateSpinLock(&(PxdMemoryLock));
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InitializeListHead(&PxdMemoryList);
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PxdInitDone = TRUE;
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}
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pAllocInfo = ExAllocatePoolWithTag(NonPagedPool,
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Size+sizeof(PXD_ALLOCATION),
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Tag);
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if (pAllocInfo != NULL) {
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pBuffer = (PVOID)&(pAllocInfo->UserData);
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NdisFillMemory(pBuffer, Size, 0xAF);
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pAllocInfo->Signature = PXD_MEMORY_SIGNATURE;
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pAllocInfo->FileNumber = FileNumber;
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pAllocInfo->LineNumber = LineNumber;
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pAllocInfo->Size = Size;
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pAllocInfo->Location = (ULONG_PTR)pPointer;
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NdisAcquireSpinLock(&(PxdMemoryLock));
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InsertTailList(&PxdMemoryList, &pAllocInfo->Linkage);
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PxdAllocCount++;
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NdisReleaseSpinLock(&(PxdMemoryLock));
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}
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return (pBuffer);
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}
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VOID
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PxAuditFreeMem(
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PVOID Pointer
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)
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{
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PPXD_ALLOCATION pAllocInfo;
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pAllocInfo = CONTAINING_RECORD(Pointer, PXD_ALLOCATION, UserData);
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if(pAllocInfo->Signature != PXD_MEMORY_SIGNATURE)
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{
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DbgPrint("PxAuditFreeMem: unknown buffer 0x%x!\n", Pointer);
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DbgBreakPoint();
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return;
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}
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NdisAcquireSpinLock(&(PxdMemoryLock));
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pAllocInfo->Signature = (ULONG)'DEAD';
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RemoveEntryList(&pAllocInfo->Linkage);
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PxdAllocCount--;
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NdisReleaseSpinLock(&(PxdMemoryLock));
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ExFreePool(pAllocInfo);
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}
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#endif // DBG
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