private static string GetDocumentUrl(ISymUnmanagedDocument document)
{
int cchUrl;
document.GetURL(0, out cchUrl, null);
StringBuilder result = new StringBuilder(cchUrl);
document.GetURL(cchUrl, out cchUrl, result);
return(result.ToString());
}
static string GetFilenameFromSymDocument(Module module, ISymUnmanagedDocument symDoc)
{
foreach (string filename in RelocateSymURL(module, symDoc.GetURL()))
{
if (File.Exists(filename))
{
return(filename);
}
}
return(symDoc.GetURL());
}
/// <summary>
/// Defines copy of <c>document</c> in new symbols file.
/// </summary>
/// <param name="document">Document to be copied</param>
/// <returns>Instance of <c>ISymUnmanagedDocumentWriter</c>, which is used to write <c>document</c> in symbole file.</returns>
public ISymUnmanagedDocumentWriter DefineDocument(ISymUnmanagedDocument document)
{
if (State != WriterState.Building)
{
throw new TranslatingException("ISym* interfaces were not initializde. (EnC)");
}
string url = document.GetURL();
Guid type = document.GetDocumentType();
Guid language = document.GetLanguage();
Guid langVendor = document.GetLanguageVendor();
IntPtr pUrl = Marshal.StringToCoTaskMemUni(url);
try{
return(mWriter.__DefineDocument(pUrl, ref language, ref langVendor, ref type));
} finally {
Marshal.FreeCoTaskMem(pUrl);
}
}
static string GetFilenameFromSymDocument(Module module, ISymUnmanagedDocument symDoc)
{
foreach (string filename in RelocateSymURL(module, symDoc.GetURL())) {
if (File.Exists(filename))
return filename;
}
return symDoc.GetURL();
}
public static SourcecodeSegment Resolve(Module module, string fileName, byte[] checkSum, int line, int column)
{
// Do not use ISymUnmanagedReader.GetDocument! It is broken if two files have the same name
// Do not use ISymUnmanagedMethod.GetOffset! It sometimes returns negative offset
ISymUnmanagedReader symReader = module.SymReader;
if (symReader == null)
{
return(null); // No symbols
}
ISymUnmanagedDocument symDoc = GetSymDocumentFromFilename(module, fileName, checkSum);
if (symDoc == null)
{
return(null); // Document not found
}
ISymUnmanagedMethod symMethod;
try {
uint validLine = symDoc.FindClosestLine((uint)line);
symMethod = symReader.GetMethodFromDocumentPosition(symDoc, (uint)validLine, (uint)column);
} catch {
return(null); //Not found
}
SequencePoint[] seqPoints = symMethod.GetSequencePoints();
Array.Sort(seqPoints);
if (seqPoints.Length == 0)
{
return(null);
}
if (line < seqPoints[0].Line)
{
return(null);
}
foreach (SequencePoint sqPoint in seqPoints)
{
if (sqPoint.Line == 0xFEEFEE)
{
continue;
}
// If the desired breakpoint position is before the end of the sequence point
if (line < sqPoint.EndLine || (line == sqPoint.EndLine && column < sqPoint.EndColumn))
{
SourcecodeSegment segment = new SourcecodeSegment();
segment.module = module;
segment.filename = symDoc.GetURL();
segment.checkSum = symDoc.GetCheckSum();
segment.startLine = (int)sqPoint.Line;
segment.startColumn = (int)sqPoint.Column;
segment.endLine = (int)sqPoint.EndLine;
segment.endColumn = (int)sqPoint.EndColumn;
segment.corFunction = module.CorModule.GetFunctionFromToken(symMethod.GetToken());
segment.ilStart = (int)sqPoint.Offset;
segment.ilEnd = (int)sqPoint.Offset;
segment.stepRanges = null;
return(segment);
}
}
return(null);
}
/// <summary>
/// Defines copy of <c>document</c> in new symbols file.
/// </summary>
/// <param name="document">Document to be copied</param>
/// <returns>Instance of <c>ISymUnmanagedDocumentWriter</c>, which is used to write <c>document</c> in symbole file.</returns>
public ISymUnmanagedDocumentWriter DefineDocument(ISymUnmanagedDocument document)
{
if(State != WriterState.Building){
throw new TranslatingException("ISym* interfaces were not initializde. (EnC)");
}
string url = document.GetURL();
Guid type = document.GetDocumentType();
Guid language = document.GetLanguage();
Guid langVendor = document.GetLanguageVendor();
IntPtr pUrl = Marshal.StringToCoTaskMemUni(url);
try{
return mWriter.__DefineDocument(pUrl,ref language,ref langVendor,ref type);
} finally {
Marshal.FreeCoTaskMem(pUrl);
}
}
private static string GetDocumentUrl(ISymUnmanagedDocument document)
{
int cchUrl;
document.GetURL(0, out cchUrl, null);
StringBuilder result = new StringBuilder(cchUrl);
document.GetURL(cchUrl, out cchUrl, result);
return result.ToString();
}
public void GetSourceLocationForOffset(uint methodDef, uint offset, out string fileLocation, out uint line, out uint column)
{
fileLocation = null;
line = 0;
column = 0;
ISymUnmanagedMethod symMethod = null;
ISymUnmanagedDocument[] documents = null;
uint sequencePointCount = 0;
try
{
symMethod = this.symReader.GetMethod(methodDef);
sequencePointCount = symMethod.GetSequencePointCount();
documents = new ISymUnmanagedDocument[sequencePointCount];
uint[] offsets = new uint[sequencePointCount];
uint[] lines = new uint[sequencePointCount];
uint[] columns = new uint[sequencePointCount];
uint[] endLines = new uint[sequencePointCount];
uint[] endColumns = new uint[sequencePointCount];
symMethod.GetSequencePoints(sequencePointCount, out sequencePointCount, offsets, documents, lines, columns, endLines, endColumns);
uint index = 1;
for (; index < sequencePointCount; index++)
{
if (offsets[index] > offset)
{
break;
}
}
index = index - 1;
// Work Around: AkashS - The SymReader returns bad line-column data for unconditional branch
// instructions. The line number is whacky and the column number is 0. Need to verify why this is so.
// We just look for a good sequence point data, it should be close enough in the source code.
while (columns[index] == 0 && index > 0)
{
index--;
}
while (index < sequencePointCount && columns[index] == 0)
{
index++;
}
// What more can we do?
if (index >= sequencePointCount || columns[index] == 0)
{
index = 0;
}
// End Work around
line = lines[index];
column = columns[index];
ISymUnmanagedDocument document = documents[index];
uint urlLength = 261;
string url = new string('\0', (int)urlLength);
document.GetURL(urlLength, out urlLength, url);
fileLocation = url.Substring(0, (int)urlLength - 1);
}
finally
{
// Release COM objects so that files don't remain locked.
for (uint i = 0; i < sequencePointCount; i++)
{
if (documents[i] != null)
{
Marshal.ReleaseComObject(documents[i]);
}
}
if (symMethod != null)
{
Marshal.ReleaseComObject(symMethod);
}
}
}
public void GetSourceLocationForOffset(uint methodDef, uint offset, out string fileLocation, out uint line, out uint column)
{
fileLocation = null;
line = 0;
column = 0;
ISymUnmanagedMethod o = null;
ISymUnmanagedDocument[] documents = null;
uint pointsCount = 0;
try
{
o = this.symReader.GetMethod(methodDef);
pointsCount = o.GetSequencePointCount();
documents = new ISymUnmanagedDocument[pointsCount];
uint[] offsets = new uint[pointsCount];
uint[] lines = new uint[pointsCount];
uint[] columns = new uint[pointsCount];
uint[] endLines = new uint[pointsCount];
uint[] endColumns = new uint[pointsCount];
o.GetSequencePoints(pointsCount, out pointsCount, offsets, documents, lines, columns, endLines, endColumns);
uint index = 1;
while (index < pointsCount)
{
if (offsets[index] > offset)
{
break;
}
index++;
}
index--;
while ((columns[index] == 0) && (index > 0))
{
index--;
}
while ((index < pointsCount) && (columns[index] == 0))
{
index++;
}
if ((index >= pointsCount) || (columns[index] == 0))
{
index = 0;
}
line = lines[index];
column = columns[index];
ISymUnmanagedDocument document = documents[index];
uint urlLength = 0x105;
string url = new string('\0', (int)urlLength);
document.GetURL(urlLength, out urlLength, url);
fileLocation = url.Substring(0, ((int)urlLength) - 1);
}
finally
{
for (uint i = 0; i < pointsCount; i++)
{
if (documents[i] != null)
{
Marshal.ReleaseComObject(documents[i]);
}
}
if (o != null)
{
Marshal.ReleaseComObject(o);
}
}
}
