public MonoDocumentContext(string fileName, TEXT_POSITION start, TEXT_POSITION end, MonoMemoryAddress address)
{
this.fileName = fileName;
this.start = start;
this.end = end;
this.address = address;
}
public MonoDocumentContext GetDocumentContext(uint address)
{
var docPosition = (IDebugDocumentPosition2)Marshal.GetObjectForIUnknown(requestInfo.bpLocation.unionmember2);
string documentName;
EngineUtils.CheckOk(docPosition.GetFileName(out documentName));
// Get the location in the document that the breakpoint is in.
var startPosition = new TEXT_POSITION[1];
var endPosition = new TEXT_POSITION[1];
EngineUtils.CheckOk(docPosition.GetRange(startPosition, endPosition));
MonoMemoryAddress codeContext = new MonoMemoryAddress(breakpointManager.Engine, address, null);
return(new MonoDocumentContext(documentName, startPosition[0], endPosition[0], codeContext));
}
// Gets the code context for this stack frame. The code context represents the current instruction pointer in this stack frame.
int IDebugStackFrame2.GetCodeContext(out IDebugCodeContext2 memoryAddress)
{
memoryAddress = null;
try
{
memoryAddress = new MonoMemoryAddress(engine, (uint)frame.Address, null);
return(VSConstants.S_OK);
}
catch (ComponentException e)
{
return(e.HResult);
}
catch (Exception e)
{
return(EngineUtils.UnexpectedException(e));
}
}
public int EnumCodeContexts(out IEnumDebugCodeContexts2 ppEnumCodeCxts)
{
ppEnumCodeCxts = null;
try
{
var codeContexts = new MonoMemoryAddress[1];
codeContexts[0] = address;
ppEnumCodeCxts = new MonoCodeContextEnum(codeContexts);
return(VSConstants.S_OK);
}
catch (ComponentException e)
{
return(e.HResult);
}
catch (Exception e)
{
return(EngineUtils.UnexpectedException(e));
}
}
public int GetResolutionInfo(enum_BPRESI_FIELDS fields, BP_RESOLUTION_INFO[] resolutionInfo)
{
if ((fields & enum_BPRESI_FIELDS.BPRESI_BPRESLOCATION) != 0)
{
// The sample engine only supports code breakpoints.
var location = new BP_RESOLUTION_LOCATION();
location.bpType = (uint)enum_BP_TYPE.BPT_CODE;
// The debugger will not QI the IDebugCodeContex2 interface returned here. We must pass the pointer
// to IDebugCodeContex2 and not IUnknown.
MonoMemoryAddress codeContext = new MonoMemoryAddress(engine, address, documentContext);
location.unionmember1 = Marshal.GetComInterfaceForObject(codeContext, typeof(IDebugCodeContext2));
resolutionInfo[0].bpResLocation = location;
resolutionInfo[0].dwFields |= enum_BPRESI_FIELDS.BPRESI_BPRESLOCATION;
}
return(VSConstants.S_OK);
}
public int Compare(enum_CONTEXT_COMPARE compare, IDebugMemoryContext2[] compareToItems, uint compareToLength, out uint foundIndex)
{
foundIndex = uint.MaxValue;
try
{
enum_CONTEXT_COMPARE contextCompare = compare;
for (uint c = 0; c < compareToLength; c++)
{
MonoMemoryAddress compareTo = compareToItems[c] as MonoMemoryAddress;
if (compareTo == null)
{
continue;
}
if (!ReferenceEquals(this.engine, compareTo.engine))
{
continue;
}
bool result;
switch (contextCompare)
{
case enum_CONTEXT_COMPARE.CONTEXT_EQUAL:
result = address == compareTo.address;
break;
case enum_CONTEXT_COMPARE.CONTEXT_LESS_THAN:
result = address < compareTo.address;
break;
case enum_CONTEXT_COMPARE.CONTEXT_GREATER_THAN:
result = address > compareTo.address;
break;
case enum_CONTEXT_COMPARE.CONTEXT_LESS_THAN_OR_EQUAL:
result = address <= compareTo.address;
break;
case enum_CONTEXT_COMPARE.CONTEXT_GREATER_THAN_OR_EQUAL:
result = address >= compareTo.address;
break;
// The sample debug engine doesn't understand scopes or functions
case enum_CONTEXT_COMPARE.CONTEXT_SAME_SCOPE:
case enum_CONTEXT_COMPARE.CONTEXT_SAME_FUNCTION:
result = address == compareTo.address;
break;
case enum_CONTEXT_COMPARE.CONTEXT_SAME_MODULE:
result = address == compareTo.address;
if (!result)
{
/*
* DebuggedModule module = engine.DebuggedProcess.ResolveAddress(address);
*
* if (module != null)
* {
* result = (compareTo.address >= module.BaseAddress) &&
* (compareTo.address < module.BaseAddress + module.Size);
* }
*/
}
break;
case enum_CONTEXT_COMPARE.CONTEXT_SAME_PROCESS:
result = true;
break;
default:
// A new comparison was invented that we don't support
return(VSConstants.E_NOTIMPL);
}
if (result)
{
foundIndex = c;
return(VSConstants.S_OK);
}
}
return(VSConstants.S_FALSE);
}
catch (ComponentException e)
{
return(e.HResult);
}
catch (Exception e)
{
return(EngineUtils.UnexpectedException(e));
}
}
public int Subtract(ulong dwCount, out IDebugMemoryContext2 ppMemCxt)
{
ppMemCxt = new MonoMemoryAddress(engine, (uint)dwCount - address, documentContext);
return(VSConstants.S_OK);
}
public int Add(ulong dwCount, out IDebugMemoryContext2 newAddress)
{
newAddress = new MonoMemoryAddress(engine, (uint)dwCount + address, documentContext);
return(VSConstants.S_OK);
}
