예제 #1
0
        public UnwindInfo(byte[] image, int offset)
        {
            byte versionAndFlags = NativeReader.ReadByte(image, ref offset);

            Version            = (byte)(versionAndFlags & 7);
            Flags              = (byte)(versionAndFlags >> 3);
            SizeOfProlog       = NativeReader.ReadByte(image, ref offset);
            CountOfUnwindCodes = NativeReader.ReadByte(image, ref offset);
            byte frameRegisterAndOffset = NativeReader.ReadByte(image, ref offset);

            FrameRegister = (byte)(frameRegisterAndOffset & 15);
            FrameOffset   = (byte)(frameRegisterAndOffset >> 4);

            UnwindCode = new UnwindCode[CountOfUnwindCodes];
            for (int i = 0; i < CountOfUnwindCodes; i++)
            {
                UnwindCode[i] = new UnwindCode(image, ref offset);
            }

            PersonalityRoutineRVA = NativeReader.ReadUInt32(image, ref offset);

            Size = _offsetofUnwindCode + CountOfUnwindCodes * _sizeofUnwindCode;
            int alignmentPad = ((Size + sizeof(int) - 1) & ~(sizeof(int) - 1)) - Size;

            Size += (alignmentPad + sizeof(uint));
        }
예제 #2
0
        public static void WriteTo(this RuntimeFunction theThis, TextWriter writer, DumpOptions options)
        {
            if (!options.Naked)
            {
                writer.WriteLine($"Id: {theThis.Id}");
                writer.WriteLine($"StartAddress: 0x{theThis.StartAddress:X8}");
            }
            if (theThis.Size == -1)
            {
                writer.WriteLine("Size: Unavailable");
            }
            else
            {
                writer.WriteLine($"Size: {theThis.Size} bytes");
            }
            if (!options.Naked)
            {
                writer.WriteLine($"UnwindRVA: 0x{theThis.UnwindRVA:X8}");
            }
            if (theThis.UnwindInfo is ILCompiler.Reflection.ReadyToRun.Amd64.UnwindInfo amd64UnwindInfo)
            {
                string parsedFlags = "";
                if ((amd64UnwindInfo.Flags & (int)ILCompiler.Reflection.ReadyToRun.Amd64.UnwindFlags.UNW_FLAG_EHANDLER) != 0)
                {
                    parsedFlags += " EHANDLER";
                }
                if ((amd64UnwindInfo.Flags & (int)ILCompiler.Reflection.ReadyToRun.Amd64.UnwindFlags.UNW_FLAG_UHANDLER) != 0)
                {
                    parsedFlags += " UHANDLER";
                }
                if ((amd64UnwindInfo.Flags & (int)ILCompiler.Reflection.ReadyToRun.Amd64.UnwindFlags.UNW_FLAG_CHAININFO) != 0)
                {
                    parsedFlags += " CHAININFO";
                }
                if (parsedFlags.Length == 0)
                {
                    parsedFlags = " NHANDLER";
                }
                writer.WriteLine($"Version:            {amd64UnwindInfo.Version}");
                writer.WriteLine($"Flags:              0x{amd64UnwindInfo.Flags:X2}{parsedFlags}");
                writer.WriteLine($"SizeOfProlog:       0x{amd64UnwindInfo.SizeOfProlog:X4}");
                writer.WriteLine($"CountOfUnwindCodes: {amd64UnwindInfo.CountOfUnwindCodes}");
                writer.WriteLine($"FrameRegister:      {((amd64UnwindInfo.FrameRegister == 0) ? "None" : amd64UnwindInfo.FrameRegister.ToString())}");
                writer.WriteLine($"FrameOffset:        0x{amd64UnwindInfo.FrameOffset}");
                if (!options.Naked)
                {
                    writer.WriteLine($"PersonalityRVA:     0x{amd64UnwindInfo.PersonalityRoutineRVA:X4}");
                }

                for (int uwcIndex = 0; uwcIndex < amd64UnwindInfo.UnwindCodes.Count; uwcIndex++)
                {
                    UnwindCode unwindCode = amd64UnwindInfo.UnwindCodes[uwcIndex];
                    writer.Write($"UnwindCode[{uwcIndex}]: ");
                    writer.Write($"CodeOffset 0x{unwindCode.CodeOffset:X4} ");
                    writer.Write($"FrameOffset 0x{unwindCode.FrameOffset:X4} ");
                    writer.Write($"NextOffset 0x{unwindCode.NextFrameOffset} ");
                    writer.Write($"Op {unwindCode.OpInfoStr}");
                    writer.WriteLine();
                    uwcIndex++;
                }
            }
            writer.WriteLine();

            if (theThis.EHInfo != null)
            {
                writer.WriteLine($@"EH info @ {theThis.EHInfo.RelativeVirtualAddress:X4}, #clauses = {theThis.EHInfo.EHClauses.Count}");
                theThis.EHInfo.WriteTo(writer);
                writer.WriteLine();
            }

            if (theThis.DebugInfo != null)
            {
                theThis.DebugInfo.WriteTo(writer, options);
            }
        }