private static int WriteCodeViewData(BlobBuilder builder, string pdbPath, Guid pdbGuid) { int start = builder.Count; builder.WriteByte((byte)'R'); builder.WriteByte((byte)'S'); builder.WriteByte((byte)'D'); builder.WriteByte((byte)'S'); // PDB id: builder.WriteGuid(pdbGuid); // age builder.WriteUInt32(1); // UTF-8 encoded zero-terminated path to PDB int pathStart = builder.Count; builder.WriteUTF8(pdbPath, allowUnpairedSurrogates: true); builder.WriteByte(0); return builder.Count - start; }
private readonly static byte[] zeroStamp = new byte[4]; // four bytes of zero /// <summary> /// Write the entire "Debug Directory (Image Only)" along with data that it points to. /// </summary> internal void WriteDebugTable(BlobBuilder builder, PESectionLocation textSectionLocation, ContentId nativePdbContentId, ContentId portablePdbContentId) { Debug.Assert(builder.Count == 0); int tableSize = ImageDebugDirectoryBaseSize; Debug.Assert(tableSize != 0); Debug.Assert(nativePdbContentId.IsDefault || portablePdbContentId.IsDefault); Debug.Assert(!EmitPdb || (nativePdbContentId.IsDefault ^ portablePdbContentId.IsDefault)); int dataSize = ComputeSizeOfDebugDirectoryData(); if (EmitPdb) { const int IMAGE_DEBUG_TYPE_CODEVIEW = 2; // from PE spec uint dataOffset = (uint)(ComputeOffsetToDebugTable() + tableSize); WriteDebugTableEntry(builder, stamp: nativePdbContentId.Stamp ?? portablePdbContentId.Stamp, version: portablePdbContentId.IsDefault ? (uint)0 : ('P' << 24 | 'M' << 16 | 0x01 << 8 | 0x00), debugType: IMAGE_DEBUG_TYPE_CODEVIEW, sizeOfData: (uint)dataSize, addressOfRawData: (uint)textSectionLocation.RelativeVirtualAddress + dataOffset, // RVA of the data pointerToRawData: (uint)textSectionLocation.PointerToRawData + dataOffset); // position of the data in the PE stream } if (IsDeterministic) { const int IMAGE_DEBUG_TYPE_NO_TIMESTAMP = 16; // from PE spec WriteDebugTableEntry(builder, stamp: zeroStamp, version: 0, debugType: IMAGE_DEBUG_TYPE_NO_TIMESTAMP, sizeOfData: 0, addressOfRawData: 0, pointerToRawData: 0); } // We should now have written all and precisely the data we said we'd write for the table entries. Debug.Assert(builder.Count == tableSize); // ==================== // The following is additional data beyond the debug directory at the offset `dataOffset` // pointed to by the ImageDebugTypeCodeView entry. if (EmitPdb) { builder.WriteByte((byte)'R'); builder.WriteByte((byte)'S'); builder.WriteByte((byte)'D'); builder.WriteByte((byte)'S'); // PDB id: builder.WriteBytes(nativePdbContentId.Guid ?? portablePdbContentId.Guid); // age builder.WriteUInt32(1); // TODO: allow specify for native PDBs // UTF-8 encoded zero-terminated path to PDB int pathStart = builder.Count; builder.WriteUTF8(PdbPathOpt, allowUnpairedSurrogates: true); builder.WriteByte(0); // padding: builder.WriteBytes(0, Math.Max(0, MinPdbPath - (builder.Count - pathStart))); } // We should now have written all and precisely the data we said we'd write for the table and its data. Debug.Assert(builder.Count == tableSize + dataSize); }