internal void OnBranch(uint aAddress, TArmInstructionSet aInstructionSet, TArmExceptionType aExceptionType, TETMBranchType aBranchType)
{
if (Branch != null)
{
ETMBranch branch = new ETMBranch(new SymAddress(aAddress), iBranchCounter, aBranchType, aInstructionSet, aExceptionType);
// Try to find a symbol
SymbolCollection col = null;
Symbol sym = LookUpSymbol(aAddress, out col);
//
if (sym != null)
{
branch.Symbol = sym;
}
else if (col != null)
{
branch.SymbolText = string.Format("Unknown Symbol from \'{0}\'", col.FileName.FileNameInHost);
}
// Cascade event
Branch(branch);
}
++iBranchCounter;
}
internal void OnExceptionModeChange(TArmExceptionType aNewException)
{
if (Exception != null)
{
Exception(aNewException);
}
}
public ETMBranch(SymAddress aAddress, int aNumber, TETMBranchType aType, TArmInstructionSet aInstructionSet, TArmExceptionType aExceptionType)
{
iAddress = aAddress;
iNumber = aNumber;
iType = aType;
iInstructionSet = aInstructionSet;
iExceptionType = aExceptionType;
}
public override void DecodeException(SymByte aByte)
{
// In a continuation exception byte, bit 7 is always supposed
// to be clear, irrespective of whether original or alternative
// compression schemes are in use.
System.Diagnostics.Debug.Assert(aByte[7] == false);
// Instruction cancellation
base.IsLastInstructionCancelled = aByte[5];
// Security
base.SecurityMode = TArmSecurityMode.ESecure;
if (aByte[0])
{
base.SecurityMode = TArmSecurityMode.ENotSecure;
}
// Exception type
TArmExceptionType exceptionType = TArmExceptionType.EUnknown;
aByte = (byte)(((byte)(aByte & 0x1E)) >> 1);
switch (aByte)
{
case 0:
exceptionType = TArmExceptionType.ENone;
break;
case 1:
exceptionType = TArmExceptionType.EHaltingDebug;
break;
case 2:
exceptionType = TArmExceptionType.ESecureMonitorCall;
break;
default:
case 3:
throw new ETMException("ERROR - reserved exception code during continuation byte");
case 4:
exceptionType = TArmExceptionType.EAsyncDataAbort;
break;
case 5:
exceptionType = TArmExceptionType.EJazelle;
break;
case 6:
case 7:
throw new ETMException("ERROR - reserved exception code during continuation byte");
case 8:
exceptionType = TArmExceptionType.EProcessorReset;
break;
case 9:
exceptionType = TArmExceptionType.EUndefinedInstruction;
break;
case 10:
exceptionType = TArmExceptionType.ESVC;
break;
case 11:
exceptionType = TArmExceptionType.EPrefetchAbortOrSWBreakpoint;
break;
case 12:
exceptionType = TArmExceptionType.ESyncDataAbortOrSWWatchpoint;
break;
case 13:
exceptionType = TArmExceptionType.EGeneric;
break;
case 14:
exceptionType = TArmExceptionType.EIRQ;
break;
case 15:
exceptionType = TArmExceptionType.EFIQ;
break;
}
base.ExceptionType = exceptionType;
}
public static string ToString(TArmExceptionType aException)
{
string mode = "???";
//
switch (aException)
{
default:
case TArmExceptionType.EUnknown:
break;
case TArmExceptionType.ENone:
mode = "Normal";
break;
case TArmExceptionType.EHaltingDebug:
mode = "Halting Debug";
break;
case TArmExceptionType.ESecureMonitorCall:
mode = "Secure Monitor Call";
break;
case TArmExceptionType.EAsyncDataAbort:
mode = "Data Abort";
break;
case TArmExceptionType.EJazelle:
mode = "Jazelle";
break;
case TArmExceptionType.EProcessorReset:
mode = "Reset";
break;
case TArmExceptionType.EUndefinedInstruction:
mode = "Undefined Instruction";
break;
case TArmExceptionType.ESVC:
mode = "SVC";
break;
case TArmExceptionType.EPrefetchAbortOrSWBreakpoint:
mode = "Prefetch Abort / SW Breakpoint";
break;
case TArmExceptionType.ESyncDataAbortOrSWWatchpoint:
mode = "Data Abort / SW Watchbpoint";
break;
case TArmExceptionType.EGeneric:
mode = "Generic";
break;
case TArmExceptionType.EIRQ:
mode = "IRQ";
break;
case TArmExceptionType.EFIQ:
mode = "FIQ";
break;
}
//
return(mode);
}
