// TODO: Is anybody crazy enough to programmatically consume the disassembly
// objects? If so, I could stick a flag on them saying if we ran into flow
// analysis errors.
//private bool m_flowAnalysisWarning;
public WholeFunctionDisasmParser(IPipelineCallback pipeline, bool hasCodeBytes)
{
if (null == pipeline)
{
throw new ArgumentNullException("pipeline");
}
m_pipeline = pipeline;
m_hasCodeBytes = hasCodeBytes;
m_state = WfdState.DontKnow;
} // end constructor
} // end constructor
public void AddLine(string s)
{
switch (m_state)
{
case WfdState.ExpectingBlockId:
if ((s.Length > 0) && (s[s.Length - 1] != ':'))
{
// It's not a block ID... this can happen when "Flow
// analysis was incomplete".
m_currentBlockId = new ColorString(ConsoleColor.DarkGray, "<unknown>").MakeReadOnly();
m_pipeline.WriteObject(_ParseDisassembly(0, // will get parsed out of s
s,
m_currentBlockId,
m_hasCodeBytes));
}
else
{
m_currentBlockId = DbgProvider.ColorizeSymbol(s).MakeReadOnly();
}
m_state = WfdState.ExpectingInstructionOrBlankLine;
break;
case WfdState.ExpectingInstructionOrBlankLine:
if (String.IsNullOrEmpty(s))
{
m_state = WfdState.ExpectingBlockId;
m_currentBlockId = null;
}
else
{
m_pipeline.WriteObject(_ParseDisassembly(0, // will get parsed out of s
s,
m_currentBlockId,
m_hasCodeBytes));
}
break;
// This is a horrible state. But sometimes we see it, like
// sometimes after a flow analysis error.
case WfdState.DontKnow:
if (s.StartsWith("Flow analysis", StringComparison.OrdinalIgnoreCase))
{
//m_flowAnalysisWarning = true;
m_pipeline.WriteWarning(s);
m_state = WfdState.DontKnow;
break;
}
else if (s.StartsWith("*** WARNING: ", StringComparison.OrdinalIgnoreCase))
{
m_pipeline.WriteWarning(s.Substring(13)); // trim off what will become redundant "WARNING" label.
m_state = WfdState.DontKnow;
break;
}
else if (s.StartsWith("*** ERROR: ", StringComparison.OrdinalIgnoreCase))
{
s = s.Substring(11); // trim off what will become redundant "ERROR" label.
var dpe = new DbgProviderException(s,
"ErrorDuringUnassemble",
ErrorCategory.ReadError);
try { throw dpe; } catch (Exception) { } // give it a stack.
m_pipeline.WriteError(dpe);
m_state = WfdState.DontKnow;
break;
}
else if (s.StartsWith("No code found, aborting", StringComparison.OrdinalIgnoreCase))
{
var dpe = new DbgProviderException(s,
"NoCodeFound",
ErrorCategory.ReadError);
try { throw dpe; } catch (Exception) { } // give it a stack.
m_pipeline.WriteError(dpe);
m_state = WfdState.DontKnow; // actually, we should be done now.
break;
}
else if ((s.Length > 0) && (s[s.Length - 1] == ':'))
{
// Looks like a block ID...
m_state = WfdState.ExpectingBlockId;
AddLine(s);
}
else if (String.IsNullOrEmpty(s))
{
m_state = WfdState.ExpectingBlockId;
m_currentBlockId = null;
}
else
{
m_state = WfdState.ExpectingInstructionOrBlankLine;
AddLine(s);
}
break;
default:
Util.Fail("Invalid parse state.");
throw new Exception("Invalid parse state.");
}
} // end AddLine()
