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417 lines
9.4 KiB
417 lines
9.4 KiB
/*++
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Copyright (c) 1995 Microsoft Corporation
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Module Name:
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routing\ip\wanarp\debug.c
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Abstract:
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Debug functions
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Revision History:
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AmritanR
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--*/
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#define __FILE_SIG__ DEBUG_SIG
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#include "inc.h"
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#define PRINT_BYTES(x) (UCHAR)x,(UCHAR)(x>>8),(UCHAR)(x>>16),(UCHAR)(x>>24)
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#if RT_LOCK_DEBUG
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KSPIN_LOCK g_kslLockLock;
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#endif
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#if RT_MEM_DEBUG
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RT_LOCK g_rlMemoryLock;
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LIST_ENTRY g_leAllocMemListHead;
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LIST_ENTRY g_leFreeMemListHead;
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#endif
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VOID
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RtInitializeDebug()
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{
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#if RT_TRACE_DEBUG
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g_byDebugLevel = RT_DBG_LEVEL_NONE;
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//g_byDebugLevel = RT_DBG_LEVEL_INFO;
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//g_byDebugLevel = 0x00;
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g_fDebugComp = 0xFFFFFFFF;
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#endif
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#if RT_LOCK_DEBUG
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KeInitializeSpinLock(&(g_kslLockLock));
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#endif
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#if RT_MEM_DEBUG
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RtInitializeSpinLock(&g_rlMemoryLock);
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InitializeListHead(&g_leAllocMemListHead);
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InitializeListHead(&g_leFreeMemListHead);
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#endif
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}
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#if RT_LOCK_DEBUG
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VOID
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RtpInitializeSpinLock(
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IN PRT_LOCK pLock,
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IN ULONG ulFileSig,
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IN ULONG ulLineNumber
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)
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{
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pLock->ulLockSig = RT_LOCK_SIG;
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pLock->ulFileSig = 0;
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pLock->ulLineNumber = 0;
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pLock->bAcquired = 0;
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pLock->pktLastThread = (PKTHREAD)NULL;
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KeInitializeSpinLock(&(pLock->kslLock));
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}
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VOID
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RtpAcquireSpinLock(
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IN PRT_LOCK pLock,
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OUT PKIRQL pkiIrql,
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IN ULONG ulFileSig,
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IN ULONG ulLineNumber,
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IN BOOLEAN bAtDpc
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)
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{
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PKTHREAD pThread;
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KIRQL kiInternalIrql;
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pThread = KeGetCurrentThread();
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if(bAtDpc)
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{
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kiInternalIrql = KeGetCurrentIrql();
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if(kiInternalIrql isnot DISPATCH_LEVEL)
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{
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DbgPrint("RTDBG: Called AcquireSpinLockAtDpc for lock at 0x%x when not at DISPATCH. File %c%c%c%c, Line %d\n",
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pLock,
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PRINT_BYTES(ulFileSig),
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ulLineNumber);
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DbgBreakPoint();
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}
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}
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KeAcquireSpinLock(&(g_kslLockLock),
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&kiInternalIrql);
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if(pLock->ulLockSig isnot RT_LOCK_SIG)
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{
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DbgPrint("RTDBG: Trying to acquire uninited lock 0x%x, File %c%c%c%c, Line %d\n",
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pLock,
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(CHAR)(ulFileSig & 0xff),
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(CHAR)((ulFileSig >> 8) & 0xff),
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(CHAR)((ulFileSig >> 16) & 0xff),
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(CHAR)((ulFileSig >> 24) & 0xff),
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ulLineNumber);
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DbgBreakPoint();
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}
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if(pLock->bAcquired isnot 0)
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{
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if(pLock->pktLastThread is pThread)
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{
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DbgPrint("RTDBG: Detected recursive locking!: pLock 0x%x, File %c%c%c%c, Line %d\n",
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pLock,
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PRINT_BYTES(ulFileSig),
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ulLineNumber);
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DbgPrint("RTDBG: pLock 0x%x already acquired in File %c%c%c%c, Line %d\n",
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pLock,
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PRINT_BYTES(pLock->ulFileSig),
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pLock->ulLineNumber);
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DbgBreakPoint();
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}
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}
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KeReleaseSpinLock(&(g_kslLockLock),
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kiInternalIrql);
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if(bAtDpc)
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{
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KeAcquireSpinLockAtDpcLevel(&(pLock->kslLock));
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}
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else
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{
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KeAcquireSpinLock(&(pLock->kslLock),
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pkiIrql);
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}
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//
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// Mark this lock.
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//
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pLock->pktLastThread = pThread;
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pLock->ulFileSig = ulFileSig;
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pLock->ulLineNumber = ulLineNumber;
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pLock->bAcquired = TRUE;
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}
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VOID
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RtpReleaseSpinLock(
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IN PRT_LOCK pLock,
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IN KIRQL kiIrql,
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IN ULONG ulFileSig,
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IN ULONG ulLineNumber,
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IN BOOLEAN bFromDpc
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)
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{
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if(pLock->ulLockSig isnot RT_LOCK_SIG)
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{
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DbgPrint("RTDBG: Trying to release uninited lock 0x%x, File %c%c%c%c, Line %d\n",
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pLock,
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PRINT_BYTES(ulFileSig),
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ulLineNumber);
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DbgBreakPoint();
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}
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if(pLock->bAcquired is 0)
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{
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DbgPrint("RTDBG: Detected release of unacquired lock 0x%x, File %c%c%c%c, Line %d\n",
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pLock,
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PRINT_BYTES(ulFileSig),
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ulLineNumber);
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DbgBreakPoint();
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}
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pLock->ulFileSig = ulFileSig;
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pLock->ulLineNumber = ulLineNumber;
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pLock->bAcquired = FALSE;
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pLock->pktLastThread = (PKTHREAD)NULL;
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if(bFromDpc)
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{
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KeReleaseSpinLockFromDpcLevel(&(pLock->kslLock));
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}
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else
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{
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KeReleaseSpinLock(&(pLock->kslLock),
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kiIrql);
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}
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}
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#endif // RT_LOCK_DEBUG
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#if RT_MEM_DEBUG
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PVOID
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RtpAllocate(
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IN POOL_TYPE ptPool,
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IN ULONG ulSize,
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IN ULONG ulTag,
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IN ULONG ulFileSig,
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IN ULONG ulLineNumber
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)
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{
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PVOID pBuffer;
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PRT_ALLOCATION pwaAlloc;
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KIRQL kiIrql;
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pwaAlloc = ExAllocatePoolWithTag(ptPool,
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ulSize+sizeof(RT_ALLOCATION),
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ulTag);
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if(pwaAlloc is NULL)
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{
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Trace(MEMORY, ERROR,
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("Failed to allocate %d bytes in file %c%c%c%c, line %d\n",
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ulSize, PRINT_BYTES(ulFileSig), ulLineNumber));
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pBuffer = NULL;
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}
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else
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{
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pBuffer = (PVOID)&(pwaAlloc->pucData);
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pwaAlloc->ulMemSig = RT_MEMORY_SIG;
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pwaAlloc->ulFileSig = ulFileSig;
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pwaAlloc->ulLineNumber = ulLineNumber;
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pwaAlloc->ulSize = ulSize;
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RtAcquireSpinLock(&(g_rlMemoryLock), &kiIrql);
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InsertHeadList(&g_leAllocMemListHead,
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&(pwaAlloc->leLink));
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RtReleaseSpinLock(&g_rlMemoryLock, kiIrql);
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}
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return pBuffer;
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}
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VOID
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RtpFree(
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PVOID pvPointer,
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IN ULONG ulFileSig,
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IN ULONG ulLineNumber
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)
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{
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PRT_ALLOCATION pwaAlloc;
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KIRQL kiIrql;
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PRT_FREE pFree;
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pwaAlloc = CONTAINING_RECORD(pvPointer, RT_ALLOCATION, pucData);
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if(pwaAlloc->ulMemSig is RT_FREE_SIG)
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{
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DbgPrint("RTDBG: Trying to free memory that is already freed. Pointer0x%x, File %c%c%c%c, Line %d. Was freed at File %c%c%c%c, Line %d. \n",
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pvPointer,
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PRINT_BYTES(ulFileSig),
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ulLineNumber,
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PRINT_BYTES(pwaAlloc->ulFileSig),
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pwaAlloc->ulLineNumber);
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return;
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}
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if(pwaAlloc->ulMemSig isnot RT_MEMORY_SIG)
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{
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DbgPrint("RTDBG: Trying to free memory whose signature is wrong. Pointer 0x%x\n",
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pvPointer);
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DbgBreakPoint();
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return;
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}
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//
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// create a warp free block for it
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//
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pFree = ExAllocatePoolWithTag(NonPagedPool,
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sizeof(RT_FREE),
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FREE_TAG);
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//
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// Take the lock so that no one else touches the list
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//
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RtAcquireSpinLock(&(g_rlMemoryLock), &kiIrql);
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RemoveEntryList(&(pwaAlloc->leLink));
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if(pFree isnot NULL)
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{
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pFree->ulMemSig = RT_FREE_SIG;
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pFree->ulAllocFileSig = pwaAlloc->ulFileSig;
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pFree->ulAllocLineNumber = pwaAlloc->ulLineNumber;
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pFree->ulFreeFileSig = ulFileSig;
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pFree->ulFreeLineNumber = ulLineNumber;
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pFree->pStartAddr = (UINT_PTR)(pwaAlloc->pucData);
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pFree->ulSize = pwaAlloc->ulSize;
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pwaAlloc->ulMemSig = RT_FREE_SIG;
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pwaAlloc->ulFileSig = ulFileSig;
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pwaAlloc->ulLineNumber = ulLineNumber;
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InsertTailList(&g_leFreeMemListHead,
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&(pFree->leLink));
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}
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else
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{
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Trace(MEMORY, ERROR,
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("Unable to create free block for allocation at %d %c%c%c%c, freed at %d %c%c%c%c. Size %d\n",
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pwaAlloc->ulLineNumber,
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PRINT_BYTES(pwaAlloc->ulFileSig),
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ulLineNumber,
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PRINT_BYTES(ulFileSig),
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pwaAlloc->ulSize));
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}
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RtReleaseSpinLock(&(g_rlMemoryLock), kiIrql);
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ExFreePool(pwaAlloc);
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}
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VOID
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RtAuditMemory()
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{
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PRT_ALLOCATION pwaAlloc;
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PLIST_ENTRY pleNode;
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PRT_FREE pFree;
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while(!IsListEmpty(&g_leAllocMemListHead))
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{
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pleNode = RemoveHeadList(&g_leAllocMemListHead);
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pwaAlloc = CONTAINING_RECORD(pleNode, RT_ALLOCATION, leLink);
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if(pwaAlloc->ulMemSig is RT_MEMORY_SIG)
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{
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DbgPrint("RTDBG: Unfreed memory. %d bytes. Pointer 0x%x, File %c%c%c%c, Line %d\n",
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pwaAlloc->ulSize,
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pwaAlloc->pucData,
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PRINT_BYTES(pwaAlloc->ulFileSig),
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pwaAlloc->ulLineNumber);
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DbgBreakPoint();
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ExFreePool(pwaAlloc);
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continue;
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}
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DbgPrint("RTDBG: Allocation with bad signature. Pointer 0x%x\n",
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pwaAlloc->pucData);
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DbgBreakPoint();
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continue;
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}
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while(!IsListEmpty(&g_leFreeMemListHead))
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{
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pleNode = RemoveHeadList(&g_leFreeMemListHead);
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pFree = CONTAINING_RECORD(pleNode, RT_FREE, leLink);
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if(pFree->ulMemSig is RT_FREE_SIG)
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{
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ExFreePool(pFree);
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continue;
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}
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DbgPrint("RTDBG: Freed memory with bad signature.\n");
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DbgBreakPoint();
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}
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}
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#endif
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