public void FindNearestSymbol(DbgViewSymbol aSymbolView)
{
SymbolCollection collection = null;
iSymbol = aSymbolView.Lookup(this.Data, out collection);
//
if (collection != null)
{
// FIXME: should this be device file name if available, and host file name if all else fails?
AssociatedBinary = Path.GetFileName(collection.FileName.FileNameInHost);
}
}
private void CalculatePrologueInstructionCount()
{
DbgViewSymbol symbolView = iEngine.DebugEngineView.Symbols;
// Get the PC and try to match it to a function
SymbolCollection collection = null;
Symbol symbol = symbolView.Lookup(iPC, out collection);
if (symbol != null)
{
iFunctionStartAddress = symbol.Address;
iFunctionName = symbol.Name;
//
uint offset = FunctionOffsetToPC;
uint instructionSize = SingleInstructionSize;
uint prologueInstructionCount = (offset / instructionSize);
//
iEngine.Trace("[PLG] Prologue function: 0x{0:x8} = {1} [+{2:x4}], {3} instructions", iPC.Value, iFunctionName, offset, PrologueInstructionCount);
PrologueInstructionCount = (int)prologueInstructionCount;
}
else
{
// We could not locate the symbol for the corresponding program counter address.
// In this situation, there's nothing we can do - if we cannot work out the offset
// within the function, then we cannot identify how many Prologue instructions to
// attempt to read.
//
// If the symbol was not found because no code segment claims ownership of this address
// then that might indicate premature dll unload or bad crash data (missing code segments)
if (collection == null)
{
throw new APESymbolNotFoundCodeSegmentUnavailable(iPC);
}
else
{
throw new APESymbolNotFound(iPC, string.Format("Code segment \'{0}\' should describe symbol, but none was found for requested program counter address", collection.FileName));
}
}
}
private Symbol BaseAddressSymbolAndCollection(DbgViewSymbol aSymbolView, out SymbolCollection aCollection)
{
Symbol ret = aSymbolView.Lookup(this.Base, out aCollection);
return(ret);
}