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reactos/subsystems/win32/win32k/objects/gdidbg.c
Amine Khaldi 785bea480a [CMAKE] 
- Sync with trunk r51050.

svn path=/branches/cmake-bringup/; revision=51154
2011-03-26 13:00:21 +00:00

349 lines
8.7 KiB
C
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/*
* PROJECT: ReactOS win32 kernel mode subsystem
* LICENSE: GPL - See COPYING in the top level directory
* FILE: subsystems/win32/win32k/objects/gdidbg.c
* PURPOSE: Special debugging functions for gdi
* PROGRAMMERS: Timo Kreuzer
*/
/** INCLUDES ******************************************************************/
#include <win32k.h>
#define NDEBUG
#include <debug.h>
ULONG gulDebugChannels = 0;
#ifdef GDI_DEBUG
ULONG_PTR GDIHandleAllocator[GDI_HANDLE_COUNT][GDI_STACK_LEVELS+1];
ULONG_PTR GDIHandleLocker[GDI_HANDLE_COUNT][GDI_STACK_LEVELS+1];
ULONG_PTR GDIHandleShareLocker[GDI_HANDLE_COUNT][GDI_STACK_LEVELS+1];
ULONG_PTR GDIHandleDeleter[GDI_HANDLE_COUNT][GDI_STACK_LEVELS+1];
struct DbgOpenGDIHandle
{
ULONG idx;
int count;
};
#define MAX_BACKTRACES 1024
static struct DbgOpenGDIHandle AllocatorTable[MAX_BACKTRACES];
static
BOOL
CompareBacktraces(ULONG idx1, ULONG idx2)
{
ULONG iLevel;
/* Loop all stack levels */
for (iLevel = 0; iLevel < GDI_STACK_LEVELS; iLevel++)
{
if (GDIHandleAllocator[idx1][iLevel]
!= GDIHandleAllocator[idx2][iLevel])
// if (GDIHandleShareLocker[idx1][iLevel]
// != GDIHandleShareLocker[idx2][iLevel])
{
return FALSE;
}
}
return TRUE;
}
void IntDumpHandleTable(PGDI_HANDLE_TABLE HandleTable)
{
static int leak_reported = 0;
int i, j, idx, nTraces = 0;
KIRQL OldIrql;
if (leak_reported)
{
DPRINT1("gdi handle abusers already reported!\n");
return;
}
leak_reported = 1;
DPRINT1("reporting gdi handle abusers:\n");
/* We've got serious business to do */
KeRaiseIrql(DISPATCH_LEVEL, &OldIrql);
/* Step through GDI handle table and find out who our culprit is... */
for (idx = RESERVE_ENTRIES_COUNT; idx < GDI_HANDLE_COUNT; idx++)
{
/* If the handle is free, continue */
if (!IS_HANDLE_VALID(idx)) continue;
/* Step through all previous backtraces */
for (j = 0; j < nTraces; j++)
{
/* Check if the backtrace matches */
if (CompareBacktraces(idx, AllocatorTable[j].idx))
{
/* It matches, increment count and break out */
AllocatorTable[j].count++;
break;
}
}
/* Did we find a new backtrace? */
if (j == nTraces)
{
/* Break out, if we reached the maximum */
if (nTraces == MAX_BACKTRACES) break;
/* Initialize this entry */
AllocatorTable[j].idx = idx;
AllocatorTable[j].count = 1;
nTraces++;
}
}
/* bubble sort time! weeeeee!! */
for (i = 0; i < nTraces-1; i++)
{
if (AllocatorTable[i].count < AllocatorTable[i+1].count)
{
struct DbgOpenGDIHandle temp;
temp = AllocatorTable[i+1];
AllocatorTable[i+1] = AllocatorTable[i];
j = i;
while (j > 0 && AllocatorTable[j-1].count < temp.count)
j--;
AllocatorTable[j] = temp;
}
}
/* Print the worst offenders... */
DbgPrint("Worst GDI Handle leak offenders (out of %i unique locations):\n", nTraces);
for (i = 0; i < nTraces && AllocatorTable[i].count > 1; i++)
{
/* Print out the allocation count */
DbgPrint(" %i allocs, type = 0x%lx:\n",
AllocatorTable[i].count,
GdiHandleTable->Entries[AllocatorTable[i].idx].Type);
/* Dump the frames */
KeRosDumpStackFrames(GDIHandleAllocator[AllocatorTable[i].idx], GDI_STACK_LEVELS);
//KeRosDumpStackFrames(GDIHandleShareLocker[AllocatorTable[i].idx], GDI_STACK_LEVELS);
/* Print new line for better readability */
DbgPrint("\n");
}
if (i < nTraces)
DbgPrint("(list terminated - the remaining entries have 1 allocation only)\n");
KeLowerIrql(OldIrql);
ASSERT(FALSE);
}
ULONG
CaptureStackBackTace(PVOID* pFrames, ULONG nFramesToCapture)
{
ULONG nFrameCount;
memset(pFrames, 0x00, (nFramesToCapture + 1) * sizeof(PVOID));
nFrameCount = RtlWalkFrameChain(pFrames, nFramesToCapture, 0);
if (nFrameCount < nFramesToCapture)
{
nFrameCount += RtlWalkFrameChain(pFrames + nFrameCount,
nFramesToCapture - nFrameCount,
1);
}
return nFrameCount;
}
BOOL
GdiDbgHTIntegrityCheck()
{
ULONG i, nDeleted = 0, nFree = 0, nUsed = 0;
PGDI_TABLE_ENTRY pEntry;
BOOL r = 1;
KeEnterCriticalRegion();
/* FIXME: check reserved entries */
/* Now go through the deleted objects */
i = GdiHandleTable->FirstFree & 0xffff;
while (i)
{
pEntry = &GdiHandleTable->Entries[i];
if (i > GDI_HANDLE_COUNT)
{
DPRINT1("nDeleted=%ld\n", nDeleted);
ASSERT(FALSE);
}
nDeleted++;
/* Check the entry */
if ((pEntry->Type & GDI_ENTRY_BASETYPE_MASK) != 0)
{
r = 0;
DPRINT1("Deleted Entry has a type != 0\n");
}
if ((ULONG_PTR)pEntry->KernelData >= GDI_HANDLE_COUNT)
{
r = 0;
DPRINT1("Deleted entries KernelPointer too big\n");
}
if (pEntry->UserData != NULL)
{
r = 0;
DPRINT1("Deleted entry has UserData != 0\n");
}
if (pEntry->ProcessId != 0)
{
r = 0;
DPRINT1("Deleted entry has ProcessId != 0\n");
}
i = (ULONG_PTR)pEntry->KernelData & 0xffff;
};
for (i = GdiHandleTable->FirstUnused;
i < GDI_HANDLE_COUNT;
i++)
{
pEntry = &GdiHandleTable->Entries[i];
if ((pEntry->Type) != 0)
{
r = 0;
DPRINT1("Free Entry has a type != 0\n");
}
if ((ULONG_PTR)pEntry->KernelData != 0)
{
r = 0;
DPRINT1("Free entries KernelPointer != 0\n");
}
if (pEntry->UserData != NULL)
{
r = 0;
DPRINT1("Free entry has UserData != 0\n");
}
if (pEntry->ProcessId != 0)
{
r = 0;
DPRINT1("Free entry has ProcessId != 0\n");
}
nFree++;
}
for (i = RESERVE_ENTRIES_COUNT; i < GDI_HANDLE_COUNT; i++)
{
HGDIOBJ Handle;
ULONG Type;
pEntry = &GdiHandleTable->Entries[i];
Type = pEntry->Type;
Handle = (HGDIOBJ)((Type << GDI_ENTRY_UPPER_SHIFT) + i);
if (Type & GDI_ENTRY_BASETYPE_MASK)
{
if (pEntry->KernelData == NULL)
{
r = 0;
DPRINT1("Used entry has KernelData == 0\n");
}
if (pEntry->KernelData <= MmHighestUserAddress)
{
r = 0;
DPRINT1("Used entry invalid KernelData\n");
}
if (((POBJ)(pEntry->KernelData))->hHmgr != Handle)
{
r = 0;
DPRINT1("Used entry %ld, has invalid hHmg %p (expected: %p)\n",
i, ((POBJ)(pEntry->KernelData))->hHmgr, Handle);
}
nUsed++;
}
}
if (RESERVE_ENTRIES_COUNT + nDeleted + nFree + nUsed != GDI_HANDLE_COUNT)
{
r = 0;
DPRINT1("Number of all entries incorrect: RESERVE_ENTRIES_COUNT = %ld, nDeleted = %ld, nFree = %ld, nUsed = %ld\n",
RESERVE_ENTRIES_COUNT, nDeleted, nFree, nUsed);
}
KeLeaveCriticalRegion();
return r;
}
ULONG
FASTCALL
GDIOBJ_IncrementShareCount(POBJ Object)
{
INT cLocks = InterlockedIncrement((PLONG)&Object->ulShareCount);
GDIDBG_CAPTURESHARELOCKER(Object->hHmgr);
ASSERT(cLocks >= 1);
return cLocks;
}
#endif /* GDI_DEBUG */
void
GdiDbgDumpLockedHandles()
{
ULONG i;
for (i = RESERVE_ENTRIES_COUNT; i < GDI_HANDLE_COUNT; i++)
{
PGDI_TABLE_ENTRY pEntry = &GdiHandleTable->Entries[i];
if (pEntry->Type & GDI_ENTRY_BASETYPE_MASK)
{
BASEOBJECT *pObject = pEntry->KernelData;
if (pObject->cExclusiveLock > 0)
{
DPRINT1("Locked object: %lx, type = %lx. allocated from:\n",
i, pEntry->Type);
GDIDBG_TRACEALLOCATOR(i);
DPRINT1("Locked from:\n");
GDIDBG_TRACELOCKER(i);
}
}
}
}
void
NTAPI
DbgPreServiceHook(ULONG ulSyscallId, PULONG_PTR pulArguments)
{
PTHREADINFO pti = (PTHREADINFO)PsGetCurrentThreadWin32Thread();
if (pti && pti->cExclusiveLocks != 0)
{
DbgPrint("FATAL: Win32DbgPreServiceHook(%ld): There are %ld exclusive locks!\n",
ulSyscallId, pti->cExclusiveLocks);
GdiDbgDumpLockedHandles();
ASSERT(FALSE);
}
}
ULONG_PTR
NTAPI
DbgPostServiceHook(ULONG ulSyscallId, ULONG_PTR ulResult)
{
PTHREADINFO pti = (PTHREADINFO)PsGetCurrentThreadWin32Thread();
if (pti && pti->cExclusiveLocks != 0)
{
DbgPrint("FATAL: Win32DbgPostServiceHook(%ld): There are %ld exclusive locks!\n",
ulSyscallId, pti->cExclusiveLocks);
GdiDbgDumpLockedHandles();
ASSERT(FALSE);
}
return ulResult;
}
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