David Srbecký
13 years ago
15 changed files with 422 additions and 577 deletions
@ -0,0 +1,256 @@
@@ -0,0 +1,256 @@
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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
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// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
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using System; |
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using System.Collections.Generic; |
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using System.IO; |
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using System.Linq; |
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using Debugger; |
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using Debugger.Interop.CorDebug; |
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using Debugger.Interop.CorSym; |
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using ICSharpCode.NRefactory.TypeSystem; |
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namespace Debugger |
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{ |
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public class SequencePoint |
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{ |
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public uint MethodDefToken { get; set; } |
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public ILRange[] ILRanges { get; set; } |
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public int ILOffset { get { return ILRanges.Length > 0 ? ILRanges[0].From : 0; } } |
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public string Filename { get; set; } |
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public byte[] FileCheckSum { get; set; } |
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public int StartLine { get; set; } |
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public int StartColumn { get; set; } |
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public int EndLine { get; set; } |
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public int EndColumn { get; set; } |
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public override string ToString() |
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{ |
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return string.Format("{0}:{1},{2}-{3},{4}", |
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Path.GetFileName(this.Filename ?? string.Empty), |
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this.StartLine, this.StartColumn, |
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this.EndLine, this.EndColumn); |
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} |
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} |
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public struct ILRange |
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{ |
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public int From; |
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public int To; |
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public ILRange(int from, int to) |
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{ |
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this.From = from; |
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this.To = to; |
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} |
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} |
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public class ILLocalVariable |
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{ |
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public int Index { get; set; } |
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public IType Type { get; set; } |
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public string Name { get; set; } |
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public bool IsCompilerGenerated { get; set; } |
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public ILRange[] ILRanges { get; set; } |
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} |
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public class PDBSymbolSource |
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{ |
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/// <summary>
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/// Get absolute source code path for the specified document.
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/// If the file is not found, some effort will be made to locate it.
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/// (i.e. to handle case when the directory is moved after compilation)
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/// One document maps exactly to one disk file.
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/// </summary>
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/// <remarks>
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/// Be careful to use this in the same way in both mapping directinons so that
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/// setting breakpoints (src->IL) and stepping (IL->src) work consistently.
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/// </remarks>
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static string GetSourceCodePath(Process process, string origPath) |
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{ |
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var paths = RelocatePath(process.Filename, origPath).Distinct(); |
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var path = paths.FirstOrDefault(f => File.Exists(f)); |
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return path; |
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} |
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/// <summary>
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/// Suggest posible new locations for original path.
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/// </summary>
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static IEnumerable<string> RelocatePath(string basePath, string origPath) |
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{ |
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if (!string.IsNullOrEmpty(origPath)) { |
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if (Path.IsPathRooted(origPath)) { |
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// Try without relocating
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yield return origPath; |
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string[] baseParts = basePath.Split('\\'); |
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string[] origParts = origPath.Split('\\'); |
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// Join the paths at some point (joining directry must match)
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for (int i = 0; i < baseParts.Length; i++) { |
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for (int j = 0; j < origParts.Length; j++) { |
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if (!string.IsNullOrEmpty(baseParts[i]) && string.Equals(baseParts[i], origParts[j], StringComparison.OrdinalIgnoreCase)) { |
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// Join the paths
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string[] joinedDirs = new string[i + (origParts.Length - j)]; |
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Array.Copy(baseParts, joinedDirs, i); |
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Array.Copy(origParts, j, joinedDirs, i, origParts.Length - j); |
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string joined = string.Join(@"\", joinedDirs); |
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yield return joined; |
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} |
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} |
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} |
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} else { |
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if (origPath.StartsWith(@".\")) |
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origPath = origPath.Substring(2); |
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if (origPath.StartsWith(@"\")) |
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origPath = origPath.Substring(1); |
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// Try 0, 1 and 2 levels above the base path
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string dir = basePath; |
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for(int i = 0; i <= 2; i++) { |
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dir = Path.GetDirectoryName(dir); |
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if (!string.IsNullOrEmpty(dir)) |
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yield return Path.Combine(dir, origPath); |
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} |
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} |
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} |
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} |
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public static SequencePoint GetSequencePoint(IMethod method, int iloffset) |
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{ |
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var symMethod = method.GetSymMethod(); |
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if (symMethod == null) |
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return null; |
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// 0xFEEFEE means "code generated by compiler"
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int codeSize = (int)method.ToCorFunction().GetILCode().GetSize(); |
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var sequencePoints = symMethod.GetSequencePoints(codeSize); |
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var realSeqPoints = sequencePoints.Where(p => p.StartLine != 0xFEEFEE); |
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// Find point for which (ilstart <= iloffset < ilend) or fallback to the next valid sequence point
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var sequencePoint = realSeqPoints.FirstOrDefault(p => p.ILRanges.Any(r => r.From <= iloffset && iloffset < r.To)) ?? |
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realSeqPoints.FirstOrDefault(p => iloffset <= p.ILOffset); |
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// VB.NET sometimes produces temporary files which it then deletes
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// (eg 17d14f5c-a337-4978-8281-53493378c1071.vb)
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string name = Path.GetFileName(sequencePoint.Filename); |
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if (name.Length == 40 && name.EndsWith(".vb")) { |
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if (name.Substring(0, name.Length - 3).All(c => ('0' <= c && c <= '9') || ('a' <= c && c <= 'f') || ('A' <= c && c <= 'F') || (c == '-'))) { |
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return null; |
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} |
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} |
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if (sequencePoint != null) { |
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sequencePoint.Filename = GetSourceCodePath(method.ParentAssembly.GetModule().Process, sequencePoint.Filename); |
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} |
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return sequencePoint; |
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} |
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public static SequencePoint GetSequencePoint(Module module, string filename, int line, int column) |
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{ |
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// Do not use ISymUnmanagedReader.GetDocument! It is broken if two files have the same name
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// Do not use ISymUnmanagedMethod.GetOffset! It sometimes returns negative offset
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if (filename == null || !Path.IsPathRooted(filename)) |
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throw new DebuggerException("Invalid filename. Absolute path is required."); |
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ISymUnmanagedReader symReader = module.SymReader; |
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if (symReader == null) |
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return null; // No symbols
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// Find ISymUnmanagedDocument which excactly matches the filename.
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var symDoc = module.SymDocuments.FirstOrDefault(d => string.Equals(filename, d.GetURL(), StringComparison.OrdinalIgnoreCase)); |
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// Find the file even if the symbol is relative or if the file was moved
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var symDocs = module.SymDocuments.Where(d => string.Equals(Path.GetFileName(filename), Path.GetFileName(d.GetURL()), StringComparison.OrdinalIgnoreCase)); |
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symDoc = symDoc ?? symDocs.FirstOrDefault(d => string.Equals(GetSourceCodePath(module.Process, d.GetURL()), filename, StringComparison.OrdinalIgnoreCase)); |
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if (symDoc == null) return null; // Document not found
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ISymUnmanagedMethod symMethod; |
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try { |
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uint validLine = symDoc.FindClosestLine((uint)line); |
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symMethod = symReader.GetMethodFromDocumentPosition(symDoc, (uint)validLine, (uint)column); |
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} catch { |
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return null; //Not found
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} |
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var corFunction = module.CorModule.GetFunctionFromToken(symMethod.GetToken()); |
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int codesize = (int)corFunction.GetILCode().GetSize(); |
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var seqPoints = symMethod.GetSequencePoints(codesize).Where(s => s.StartLine != 0xFEEFEE); |
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SequencePoint seqPoint = null; |
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if (column == 0) { |
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seqPoint = seqPoints.FirstOrDefault(s => s.StartLine <= line && line <= s.EndLine); |
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} else { |
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seqPoint = seqPoints.FirstOrDefault(s => (s.StartLine < line || (s.StartLine == line && s.StartColumn <= column)) && |
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(line < s.EndLine || (line == s.EndLine && column <= s.EndColumn))); |
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} |
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seqPoint = seqPoint ?? seqPoints.FirstOrDefault(s => line <= s.StartLine); |
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return seqPoint; |
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} |
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public static bool HasSymbols(IMethod method) |
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{ |
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return method.GetSymMethod() != null; |
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} |
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public static IEnumerable<ILRange> GetIgnoredILRanges(IMethod method) |
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{ |
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var symMethod = method.GetSymMethod(); |
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if (symMethod == null) |
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return null; |
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int codeSize = (int)method.ToCorFunction().GetILCode().GetSize(); |
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return symMethod.GetSequencePoints(codeSize).Where(p => p.StartLine == 0xFEEFEE).SelectMany(p => p.ILRanges).ToList(); |
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} |
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public static IEnumerable<ILLocalVariable> GetLocalVariables(IMethod method) |
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{ |
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var symMethod = method.GetSymMethod(); |
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if (symMethod == null) |
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return null; |
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List<ILLocalVariable> vars = new List<ILLocalVariable>(); |
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Stack<ISymUnmanagedScope> scopes = new Stack<ISymUnmanagedScope>(); |
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scopes.Push(symMethod.GetRootScope()); |
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while(scopes.Count > 0) { |
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ISymUnmanagedScope scope = scopes.Pop(); |
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foreach (ISymUnmanagedVariable symVar in scope.GetLocals()) { |
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int index = (int)symVar.GetAddressField1(); |
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vars.Add(new ILLocalVariable() { |
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Index = index, |
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Type = method.GetLocalVariableType(index), |
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Name = symVar.GetName(), |
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IsCompilerGenerated = (symVar.GetAttributes() & 1) == 1, |
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// symVar also has Get*Offset methods, but the are not implemented
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ILRanges = new [] { new ILRange() { From = (int)scope.GetStartOffset(), To = (int)scope.GetEndOffset() } } |
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}); |
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} |
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foreach(ISymUnmanagedScope childScope in scope.GetChildren()) { |
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scopes.Push(childScope); |
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} |
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} |
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return vars; |
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} |
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} |
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static class PDBSymbolSourceExtensions |
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{ |
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public static ISymUnmanagedMethod GetSymMethod(this IMethod method) |
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{ |
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var module = method.ParentAssembly.GetModule(); |
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if (module.SymReader == null) { |
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return null; |
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} |
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try { |
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return module.SymReader.GetMethod(method.GetMetadataToken()); |
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} catch (System.Runtime.InteropServices.COMException) { |
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// Can not find the method
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// eg. Compiler generated constructors are not in symbol store
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return null; |
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} |
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} |
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} |
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} |
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@ -1,339 +0,0 @@
@@ -1,339 +0,0 @@
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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
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// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
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using System; |
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using System.Collections.Generic; |
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using System.IO; |
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using System.Runtime.InteropServices; |
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using Debugger.Interop.CorDebug; |
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using Debugger.Interop.CorSym; |
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namespace Debugger |
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{ |
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public class SourcecodeSegment: DebuggerObject |
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{ |
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public Module Module { get; private set; } |
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public string Filename { get; private set; } |
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public string Typename { get; private set; } |
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public byte[] CheckSum { get; private set; } |
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public int StartLine { get; private set; } |
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public int StartColumn { get; private set; } |
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public int EndLine { get; private set; } |
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public int EndColumn { get; private set; } |
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internal ICorDebugFunction CorFunction { get; private set; } |
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public int ILStart { get; private set; } |
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public int ILEnd { get; private set; } |
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public int[] StepRanges { get; private set; } |
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private SourcecodeSegment() |
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{ |
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} |
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/// <summary>
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/// Use the module path to figure out where to look for the source file
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/// </summary>
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static IEnumerable<string> RelocateSymURL(Module module, string symUrl) |
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{ |
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string modulePath = module.Process.WorkingDirectory; |
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if (module.IsInMemory || module.IsDynamic) { |
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// Just use any module with symboles
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foreach(Module m in module.Process.Modules) { |
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if (m.HasSymbols) { |
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if (!string.IsNullOrEmpty(m.FullPath)) { |
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modulePath = Path.GetDirectoryName(m.FullPath); |
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break; |
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} |
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} |
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} |
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} else { |
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if (!string.IsNullOrEmpty(module.FullPath)) |
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modulePath = Path.GetDirectoryName(module.FullPath); |
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} |
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if (string.IsNullOrEmpty(modulePath)) { |
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yield return symUrl; |
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yield break; |
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} |
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if (Path.IsPathRooted(symUrl)) { |
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Dictionary<string, object> returned = new Dictionary<string, object>(); |
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// Try without relocating
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returned.Add(symUrl, null); |
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yield return symUrl; |
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// The two paths to combine
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string[] moduleDirs = modulePath.Split('\\'); |
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string[] urlDirs = symUrl.Split('\\'); |
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// Join the paths at some point (joining directry must match)
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for (int i = 0; i < moduleDirs.Length; i++) { |
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for (int j = 0; j < urlDirs.Length; j++) { |
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if (!string.IsNullOrEmpty(moduleDirs[i]) && |
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!string.IsNullOrEmpty(urlDirs[j]) && |
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string.Equals(moduleDirs[i], urlDirs[j], StringComparison.OrdinalIgnoreCase)) |
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{ |
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// Join the paths
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string[] joinedDirs = new string[i + (urlDirs.Length - j)]; |
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Array.Copy(moduleDirs, joinedDirs, i); |
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Array.Copy(urlDirs, j, joinedDirs, i, urlDirs.Length - j); |
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string joined = string.Join(@"\", joinedDirs); |
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// Return joined path
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if (!returned.ContainsKey(joined)) { |
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returned.Add(joined, null); |
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yield return joined; |
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} |
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} |
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} |
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} |
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} else { |
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if (symUrl.StartsWith(@".\")) symUrl = symUrl.Substring(2); |
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if (symUrl.StartsWith(@"\")) symUrl = symUrl.Substring(1); |
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// Try 0, 1 and 2 levels above the module directory
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string dir = modulePath; |
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if (!string.IsNullOrEmpty(dir)) yield return Path.Combine(dir, symUrl); |
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dir = Path.GetDirectoryName(dir); |
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if (!string.IsNullOrEmpty(dir)) yield return Path.Combine(dir, symUrl); |
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dir = Path.GetDirectoryName(dir); |
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if (!string.IsNullOrEmpty(dir)) yield return Path.Combine(dir, symUrl); |
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} |
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} |
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static ISymUnmanagedDocument GetSymDocumentFromFilename(Module module, string filename) |
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{ |
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if (filename == null) throw new ArgumentNullException("filename"); |
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if (Path.IsPathRooted(filename)) { |
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foreach(ISymUnmanagedDocument symDoc in module.SymDocuments) { |
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foreach (string url in RelocateSymURL(module, symDoc.GetURL())) { |
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if (string.Equals(url, filename, StringComparison.OrdinalIgnoreCase)) |
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return symDoc; |
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} |
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} |
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} else { |
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foreach(ISymUnmanagedDocument symDoc in module.SymDocuments) { |
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if (filename.StartsWith(@".\")) filename = filename.Substring(2); |
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if (filename.StartsWith(@"\")) filename = filename.Substring(1); |
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if (symDoc.GetURL().ToLowerInvariant().EndsWith(@"\" + filename.ToLowerInvariant())) { |
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return symDoc; |
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} |
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} |
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} |
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return null; |
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} |
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public static SourcecodeSegment Resolve(Module module, string fileName, int line, int column) |
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{ |
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// Do not use ISymUnmanagedReader.GetDocument! It is broken if two files have the same name
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// Do not use ISymUnmanagedMethod.GetOffset! It sometimes returns negative offset
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if (fileName == null) return null; |
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ISymUnmanagedReader symReader = module.SymReader; |
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if (symReader == null) return null; // No symbols
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ISymUnmanagedDocument symDoc = GetSymDocumentFromFilename(module, fileName); |
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if (symDoc == null) return null; // Document not found
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ISymUnmanagedMethod symMethod; |
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try { |
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uint validLine = symDoc.FindClosestLine((uint)line); |
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symMethod = symReader.GetMethodFromDocumentPosition(symDoc, (uint)validLine, (uint)column); |
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} catch { |
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return null; //Not found
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} |
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SequencePoint[] seqPoints = symMethod.GetSequencePoints(); |
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Array.Sort(seqPoints); |
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if (seqPoints.Length == 0) return null; |
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if (line < seqPoints[0].Line) return null; |
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foreach(SequencePoint sqPoint in seqPoints) { |
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if (sqPoint.Line == 0xFEEFEE) continue; |
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// If the desired breakpoint position is before the end of the sequence point
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if (line < sqPoint.EndLine || (line == sqPoint.EndLine && column < sqPoint.EndColumn)) { |
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SourcecodeSegment segment = new SourcecodeSegment(); |
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segment.Module = module; |
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segment.Filename = symDoc.GetURL(); |
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segment.CheckSum = symDoc.GetCheckSum(); |
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segment.StartLine = (int)sqPoint.Line; |
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segment.StartColumn = (int)sqPoint.Column; |
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segment.EndLine = (int)sqPoint.EndLine; |
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segment.EndColumn = (int)sqPoint.EndColumn; |
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segment.CorFunction = module.CorModule.GetFunctionFromToken(symMethod.GetToken()); |
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segment.ILStart = (int)sqPoint.Offset; |
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segment.ILEnd = (int)sqPoint.Offset; |
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segment.StepRanges = null; |
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return segment; |
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} |
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} |
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return null; |
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} |
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static string GetFilenameFromSymDocument(Module module, ISymUnmanagedDocument symDoc) |
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{ |
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foreach (string filename in RelocateSymURL(module, symDoc.GetURL())) { |
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if (File.Exists(filename)) |
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return filename; |
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} |
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return symDoc.GetURL(); |
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} |
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|
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/// <summary>
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/// 'ILStart <= ILOffset <= ILEnd' and this range includes at least
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/// the returned area of source code. (May incude some extra compiler generated IL too)
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/// </summary>
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internal static SourcecodeSegment Resolve(Module module, ISymUnmanagedMethod symMethod, ICorDebugFunction corFunction, int offset) |
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{ |
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if (symMethod == null) |
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return null; |
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uint sequencePointCount = symMethod.GetSequencePointCount(); |
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SequencePoint[] sequencePoints = symMethod.GetSequencePoints(); |
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// Get i for which: offsets[i] <= offset < offsets[i + 1]
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// or fallback to first element if offset < offsets[0]
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for (int i = (int)sequencePointCount - 1; i >= 0; i--) { // backwards
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if ((int)sequencePoints[i].Offset <= offset || i == 0) { |
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// Set inforamtion about current IL range
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int codeSize = (int)corFunction.GetILCode().GetSize(); |
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int ilStart = (int)sequencePoints[i].Offset; |
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int ilEnd = (i + 1 < sequencePointCount) ? (int)sequencePoints[i+1].Offset : codeSize; |
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// 0xFeeFee means "code generated by compiler"
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// If we are in generated sequence use to closest real one instead,
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// extend the ILStart and ILEnd to include the 'real' sequence
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// Look ahead for 'real' sequence
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while (i + 1 < sequencePointCount && sequencePoints[i].Line == 0xFeeFee) { |
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i++; |
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ilEnd = (i + 1 < sequencePointCount) ? (int)sequencePoints[i+1].Offset : codeSize; |
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} |
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// Look back for 'real' sequence
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while (i - 1 >= 0 && sequencePoints[i].Line == 0xFeeFee) { |
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i--; |
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ilStart = (int)sequencePoints[i].Offset; |
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} |
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// Wow, there are no 'real' sequences
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if (sequencePoints[i].Line == 0xFeeFee) { |
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return null; |
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} |
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List<int> stepRanges = new List<int>(); |
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for (int j = 0; j < sequencePointCount; j++) { |
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// Step over compiler generated sequences and current statement
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// 0xFeeFee means "code generated by compiler"
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if (sequencePoints[j].Line == 0xFeeFee || j == i) { |
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// Add start offset or remove last end (to connect two ranges into one)
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if (stepRanges.Count > 0 && stepRanges[stepRanges.Count - 1] == sequencePoints[j].Offset) { |
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stepRanges.RemoveAt(stepRanges.Count - 1); |
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} else { |
||||
stepRanges.Add((int)sequencePoints[j].Offset); |
||||
} |
||||
// Add end offset | handle last sequence point
|
||||
if (j + 1 < sequencePointCount) { |
||||
stepRanges.Add((int)sequencePoints[j+1].Offset); |
||||
} else { |
||||
stepRanges.Add(codeSize); |
||||
} |
||||
} |
||||
} |
||||
|
||||
SourcecodeSegment segment = new SourcecodeSegment(); |
||||
segment.Module = module; |
||||
segment.Filename = GetFilenameFromSymDocument(module, sequencePoints[i].Document); |
||||
segment.CheckSum = sequencePoints[i].Document.GetCheckSum(); |
||||
segment.StartLine = (int)sequencePoints[i].Line; |
||||
segment.StartColumn = (int)sequencePoints[i].Column; |
||||
segment.EndLine = (int)sequencePoints[i].EndLine; |
||||
segment.EndColumn = (int)sequencePoints[i].EndColumn; |
||||
segment.CorFunction = corFunction; |
||||
segment.ILStart = ilStart; |
||||
segment.ILEnd = ilEnd; |
||||
segment.StepRanges = stepRanges.ToArray(); |
||||
|
||||
// VB.NET sometimes produces temporary files which it then deletes
|
||||
// (eg 17d14f5c-a337-4978-8281-53493378c1071.vb)
|
||||
string filename = Path.GetFileName(segment.Filename); |
||||
if (filename.Length == 40 && filename.EndsWith(".vb")) { |
||||
bool guidName = true; |
||||
foreach(char c in filename.Substring(0, filename.Length - 3)) { |
||||
if (('0' <= c && c <= '9') || |
||||
('a' <= c && c <= 'f') || |
||||
('A' <= c && c <= 'F') || |
||||
(c == '-')) |
||||
{ |
||||
guidName = true; |
||||
} else { |
||||
guidName = false; |
||||
break; |
||||
} |
||||
} |
||||
if (guidName) |
||||
return null; |
||||
} |
||||
|
||||
return segment; |
||||
} |
||||
} |
||||
return null; |
||||
} |
||||
|
||||
public override string ToString() |
||||
{ |
||||
return string.Format("{0}:{1},{2}-{3},{4}", |
||||
Path.GetFileName(this.Filename ?? string.Empty), |
||||
this.StartLine, this.StartColumn, this.EndLine, this.EndColumn); |
||||
} |
||||
|
||||
#region Decompiled breakpoint
|
||||
|
||||
public static SourcecodeSegment CreateForIL(Module module, int line, int metadataToken, int iLOffset) |
||||
{ |
||||
try { |
||||
SourcecodeSegment segment = new SourcecodeSegment(); |
||||
segment.Module = module; |
||||
segment.Typename = null; |
||||
segment.CheckSum = null; |
||||
segment.StartLine = line; |
||||
segment.StartColumn = 0; |
||||
segment.EndLine = line; |
||||
segment.EndColumn = 0; |
||||
segment.CorFunction = module.CorModule.GetFunctionFromToken((uint)metadataToken); |
||||
segment.ILStart = iLOffset; |
||||
segment.ILEnd = iLOffset; |
||||
segment.StepRanges = null; |
||||
|
||||
return segment; |
||||
} catch { |
||||
return null; |
||||
} |
||||
} |
||||
|
||||
public static SourcecodeSegment ResolveForIL(Module module, ICorDebugFunction corFunction, int line, int offset, int[] ranges) |
||||
{ |
||||
try { |
||||
SourcecodeSegment segment = new SourcecodeSegment(); |
||||
segment.Module = module; |
||||
segment.Typename = null; |
||||
segment.CheckSum = null; |
||||
segment.StartLine = line; |
||||
segment.StartColumn = 0; |
||||
segment.EndLine = line; |
||||
segment.EndColumn = 0; |
||||
segment.CorFunction = corFunction; |
||||
segment.ILStart = offset; |
||||
segment.ILEnd = ranges[1]; |
||||
segment.StepRanges = ranges; |
||||
|
||||
return segment; |
||||
} catch { |
||||
return null; |
||||
} |
||||
} |
||||
|
||||
#endregion
|
||||
} |
||||
} |
||||
Loading…
Reference in new issue