MI_UNLOCK_RELOCATIONS_EXCLUSIVE
VOID __stdcall MI_UNLOCK_RELOCATIONS_EXCLUSIVE(_ETHREAD *CurrentThread, _MI_DYNAMIC_RELOCATIONS *DynamicRelocations){
UINT64 v2;
_ETHREAD *v4;
unsigned int SessionId;
unsigned __int8 v6;
int v7;
bool v8;
__int64 v9;
_KLOCK_ENTRY *v10;
int v11;
unsigned int v12;
__int64 v13;
UINT64 a3;
v2 = (UINT64)(DynamicRelocations + 6);
*((_QWORD *)DynamicRelocations + 1) = (unsigned __int64)CurrentThread | 1;
if( (_InterlockedExchangeAdd64((volatile signed __int64 *)DynamicRelocations + 3, 0xFFFFFFFFFFFFFFFFui64) & 6) == 2 )
ExfTryToWakePushLock((_EX_PUSH_LOCK *)DynamicRelocations + 3);
LODWORD(a3) = 0;
v4 = (_ETHREAD *)KeGetCurrentThread();
if( MiGetSystemRegionType(v2) == 1 )
SessionId = MmGetSessionIdEx(v4->Tcb.ApcState.Process);
else
SessionId = -1;
--v4->Tcb.SpecialApcDisable;
v6 = ++v4->Tcb.AbAllocationRegionCount;
v7 = ((char)v4->Tcb.AbEntrySummary | (char)v4->Tcb.AbOrphanedEntrySummary) ^ 0x3F;
while( 1 )
{
v8 = !_BitScanReverse((unsigned int *)&v9, v7);
if( v8 )
break;
v10 = &v4->Tcb.LockEntries[v9];
v7 &= ~(1 << v9);
if( (v10->AcquiredByte & 1) != 0
&& (v10->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 & 1) == 0
&& (v10->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 & 0x7FFFFFFFFFFFFFFCi64) == (v2 & 0x7FFFFFFFFFFFFFFCi64)
&& v10->LockState.SessionId == SessionId )
{
v10->AcquiredByte &= ~1u;
if( v10->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 )
{
if( v10 )
{
v10->CrossThreadReleasableAndBusyByte |= 2u;
if( v10->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 < 0 )
KiAbEntryRemoveFromTree(v10);
v11 = v10->BoostBitmap.AllFields & 0x1FFFF;
v12 = v10->BoostBitmap.AllFields & 0xFFFE0000;
v10->ThreadLocalFlags &= ~1u;
LODWORD(a3) = v11;
v10->BoostBitmap.AllFields = v12;
v10->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 = 0i64;
v13 = v10 - v4->Tcb.LockEntries;
if( v6 == 1 )
v4->Tcb.AbEntrySummary |= 1 << v13;
else
_InterlockedOr8((volatile signed __int8 *)&v4->Tcb.AbOrphanedEntrySummary, 1 << v13);
goto LABEL_17;
}
break;
}
}
}
if( (*(&v4->Tcb.MiscFlags + 1) & 0x10000) == 0 )
KeBugCheckEx(0x162u, v4, (PVOID)v2, (PVOID)SessionId, 0i64);
LABEL_17:
--v4->Tcb.AbAllocationRegionCount;
KiAbThreadRemoveBoosts(&v4->Tcb, (VOID *)v2, &a3);
v8 = v4->Tcb.SpecialApcDisable++ == -1;
if( v8 && ($F25F8C4BA33AF922A5F1AF68CD89DDDF *)v4->Tcb.ApcState.ApcListHead[0].Flink != &v4->Tcb.152 )
KiCheckForKernelApcDelivery();
KiLeaveGuardedRegionUnsafe((__int64)CurrentThread);
}Referenced by:
MiCaptureSecureImageBaseAddress
MiRelocateImage
MiRelocateImageAgain