void DumpExcInfoX(TArmExcInfo& a)
{
DumpExcInfo(a);
NThread* nthread = NCurrentThread();
if (nthread == NULL)
Kern::Printf("No current thread");
else
{
DThread* thread = Kern::NThreadToDThread(NCurrentThread());
if (thread)
{
TFullName thread_name;
thread->TraceAppendFullName(thread_name, EFalse);
Kern::Printf("Thread full name=%S", &thread_name);
Kern::Printf("Thread ID=%d, KernCSLocked=%d",TheCurrentThread->iId,NKern::KernelLocked());
}
else
Kern::Printf("Thread N/A, KernCSLocked=%d",NKern::KernelLocked());
}
}
void NKern::CancelUserModeCallbacks()
{
// Call any queued callbacks with the EUserModeCallbackCancel reason code, in the current
// thread.
TUserModeCallback* listHead =
(TUserModeCallback*)__e32_atomic_swp_ord_ptr(&NCurrentThread()->iUserModeCallbacks, NULL);
while (listHead)
{
TUserModeCallback* callback = listHead;
listHead = listHead->iNext;
callback->iNext = KUserModeCallbackUnqueued;
__e32_memory_barrier();
callback->iFunc(callback, EUserModeCallbackCancel);
}
}
void NKern::CancelUserModeCallbacks()
{
// Call any queued callbacks with the EUserModeCallbackCancel reason code, in the current
// thread.
NThreadBase* thread = NCurrentThread();
NKern::Lock();
TUserModeCallback* listHead = thread->iUserModeCallbacks;
thread->iUserModeCallbacks = NULL;
NKern::Unlock();
while (listHead != NULL)
{
TUserModeCallback* callback = listHead;
listHead = listHead->iNext;
callback->iNext = KUserModeCallbackUnqueued;
callback->iFunc(callback, EUserModeCallbackCancel);
}
}
EXPORT_C void NKern::ThreadGetUserContext(NThread* aThread, TAny* aContext, TUint32& aAvailMask)
{
CHECK_PRECONDITIONS(MASK_INTERRUPTS_ENABLED|MASK_NOT_ISR|MASK_NOT_IDFC, "NKern::ThreadGetUserContext");
TUint32* sp;
TUint32* stackTop;
TX86RegSet* regSet = (TX86RegSet*)aContext;
TInt delta;
NKern::Lock();
NThread* currentThread = NCurrentThread();
DEBUGPRINT(" NCurrentThread()=0x%x, aThread=0x%x", currentThread, aThread);
switch (NKern::CurrentContext())
{
case NKern::EThread: DEBUGPRINT(" CurrentContext=NKern::EThread"); break;
case NKern::EIDFC: DEBUGPRINT(" CurrentContext=NKern::EIDFC"); break;
case NKern::EInterrupt: DEBUGPRINT(" CurrentContext=NKern::EInterrupt"); break;
default: DEBUGPRINT(" CurrentContext= Unknown"); break;
}
DEBUGPRINT(" Attributes (iSpare2)=0x%x", aThread->iSpare2);
DEBUGPRINT(" iExtraContext=0x%x, iExtraContextSize=0x%x", aThread->iExtraContext, aThread->iExtraContextSize);
DEBUGPRINT(" iSuspendCount=%d", aThread->iSuspendCount);
DEBUGPRINT(" X86_IrqStack=%x", X86_IrqStack);
TBool isCurrentThread = (currentThread == aThread);
sp = (TUint32*)aThread->iSavedSP;
stackTop = (TUint32*)((TUint32)aThread->iStackBase+(TUint32)aThread->iStackSize);
delta = stackTop - sp; // number of words on the supervisor stack
DEBUGPRINT(" Stack Top=iStackBase+iStackSize=0x%x iSavedSP=0x%x, delta=0x%x", stackTop, sp, delta);
DEBUGPRINT(" iUserContextType (iSpare3)=0x%x", aThread->iSpare3);
DEBUGPRINT(" NThreadState:");
switch(aThread->iSpare1)
{
case NThreadBase::EReady:
DEBUGPRINT(" EReady");
break;
case NThreadBase::ESuspended:
DEBUGPRINT(" ESuspended");
break;
case NThreadBase::EWaitFastSemaphore:
DEBUGPRINT(" EWaitFastSemaphore");
break;
case NThreadBase::ESleep:
DEBUGPRINT(" ESleep");
break;
case NThreadBase::EBlocked:
DEBUGPRINT(" EBlocked");
break;
case NThreadBase::EDead:
DEBUGPRINT(" EDead");
break;
case NThreadBase::EWaitDfc:
DEBUGPRINT(" EWaitDfc");
break;
default:
DEBUGPRINT(" *Unknown");
}
if (aAvailMask)
{
DEBUGPRINT(" Setting Stack-Saved Registers");
// Hack while ThreadSetUserContext is not implemented
if (0 == aThread->iSpare3)
{
// Context when interrupted by user
if (aAvailMask & 1<<13)
stackTop[-1] = regSet->iSs;
if (aAvailMask & 1<<4)
stackTop[-2] = regSet->iEsp;
if (aAvailMask & 1<<14)
{
DEBUGPRINT(" Setting EFLAGS to %x", regSet->iEflags);
stackTop[-3] = regSet->iEflags;
}
if (aAvailMask & 1<<8)
stackTop[-4] = regSet->iCs;
if (aAvailMask & 1<<15)
stackTop[-5] = regSet->iEip;
if (aAvailMask & 1<<9)
stackTop[-8] = regSet->iDs;
if (aAvailMask & 1<<0)
stackTop[-9] = regSet->iEax;
if (aAvailMask & 1<<2)
stackTop[-10] = regSet->iEcx;
if (aAvailMask & 1<<5)
stackTop[-16] = regSet->iEbp;
if (aAvailMask & 1<<7)
stackTop[-17] = regSet->iEdi;
if (aAvailMask & 1<<6)
stackTop[-18] = regSet->iEsi;
}
else
{
if (aAvailMask & 1<<13)
stackTop[-1] = regSet->iSs;
if (aAvailMask & 1<<4)
stackTop[-2] = regSet->iEsp;
if (aAvailMask & 1<<14)
{
stackTop[-3] = regSet->iEflags;
DEBUGPRINT(" Setting EFLAGS to %x", regSet->iEflags);
}
if (aAvailMask & 1<<8)
stackTop[-4] = regSet->iCs;
if (aAvailMask & 1<<15)
stackTop[-5] = regSet->iEip;
/* -6 and -7 are not used since they are the vector number and the error code,
* which are 3 and 0 resp. for breakpoints.
*/
/* The following are from the push instructions in __X86VectorExc */
if (aAvailMask & 1<<9)
stackTop[-8] = regSet->iDs;
if (aAvailMask & 1<<10)
stackTop[-9] = regSet->iEs;
if (aAvailMask & 1<<11)
stackTop[-10] = regSet->iFs;
if (aAvailMask & 1<<12)
stackTop[-11] = regSet->iGs;
if (aAvailMask & 1<<5)
stackTop[-12] = regSet->iEbp;
if (aAvailMask & 1<<7)
stackTop[-13] = regSet->iEdi;
if (aAvailMask & 1<<6)
stackTop[-14] = regSet->iEsi;
if (aAvailMask & 1<<1)
stackTop[-15] = regSet->iEbx;
if (aAvailMask & 1<<2)
stackTop[-16] = regSet->iEcx;
if (aAvailMask & 1<<3)
stackTop[-17] = regSet->iEdx;
if (aAvailMask & 1<<0)
stackTop[-18] = regSet->iEax;
}
DEBUGPRINT("stack from stack top, after changes " );
if (delta < 128)
{
delta = -delta;
}
else
{
delta = -128;
}
for ( ; delta < 0; delta++)
{
DEBUGPRINT("stackTop[%d]=%x", delta, stackTop[delta]);
}
}
else
{
memclr(aContext, sizeof(TX86RegSet));
if (isCurrentThread)
{
// Not yet supported
DEBUGPRINT(" NThread::GetContext() : Don't know how to obtain context for current thread\n Use TSS?");
}
else
{
DEBUGPRINT("stack from stack top " );
if (delta < 128)
{
delta = -delta;
}
else
{
delta = -128;
}
for( ; delta < 0; delta++)
{
DEBUGPRINT("stackTop[%d]=%x", delta, stackTop[delta]);
}
if (0 == aThread->iSpare3)
{
// Context when interrupted by user
regSet->iSs = stackTop[-1];
aAvailMask |= 1<<13;
regSet->iEsp = stackTop[-2];
aAvailMask |= 1<<4;
regSet->iEflags = stackTop[-3];
aAvailMask |= 1<<14;
regSet->iCs = stackTop[-4];
aAvailMask |= 1<<8;
regSet->iEip = stackTop[-5];
aAvailMask |= 1<<15;
regSet->iDs = stackTop[-8];
aAvailMask |= 1<<9;
regSet->iEax = stackTop[-9];
aAvailMask |= 1<<0;
regSet->iEcx = stackTop[-10];
aAvailMask |= 1<<2;
regSet->iEbp = stackTop[-16];
aAvailMask |= 1<<5;
regSet->iEdi = stackTop[-17];
aAvailMask |= 1<<7;
regSet->iEsi = stackTop[-18];
aAvailMask |= 1<<6;
}
else
{
// Now populate the TX86RegSet with the contents of the stack
/*
* The first 5 are from the comments at the start of __X86VectorExc :
* [ESP+0] = vector number
* [ESP+4] = error code (filled with 0 for exceptions without error codes)
* [ESP+8] = return EIP
* [ESP+12] = return CS
* [ESP+16] = return EFLAGS
* [ESP+20] = return ESP if privilege change occurred
* [ESP+24] = return SS if privilege change occurred
*/
regSet->iSs = stackTop[-1];
aAvailMask |= 1<<13;
regSet->iEsp = stackTop[-2];
aAvailMask |= 1<<4;
regSet->iEflags = stackTop[-3];
aAvailMask |= 1<<14;
regSet->iCs = stackTop[-4];
aAvailMask |= 1<<8;
regSet->iEip = stackTop[-5];
aAvailMask |= 1<<15;
/* -6 and -7 are not used since they are the vector number and the error code,
* which for a breakpoint are 3 and 0 resp.
*/
/* The following are from the push instructions in __X86VectorExc */
regSet->iDs = stackTop[-8];
aAvailMask |= 1<<9;
regSet->iEs = stackTop[-9];
aAvailMask |= 1<<10;
regSet->iFs = stackTop[-10];
aAvailMask |= 1<<11;
regSet->iGs = stackTop[-11];
aAvailMask |= 1<<12;
regSet->iEbp = stackTop[-12];
aAvailMask |= 1<<5;
regSet->iEdi = stackTop[-13];
aAvailMask |= 1<<7;
regSet->iEsi = stackTop[-14];
aAvailMask |= 1<<6;
regSet->iEbx = stackTop[-15];
aAvailMask |= 1<<1;
regSet->iEcx = stackTop[-16];
aAvailMask |= 1<<2;
regSet->iEdx = stackTop[-17];
aAvailMask |= 1<<3;
regSet->iEax = stackTop[-18];
aAvailMask |= 1<<0;
} // else if (0 == aThread->iSpare3)
} // else if (isCurrentThread)
} // else if (aAvailMask)
NKern::Unlock();
}
