コード例 #1
0
ファイル: Program.cs プロジェクト: ChrisJamesSadler/Cosmos
        static void Main(string[] args)
        {
            System.Diagnostics.Stopwatch s = new System.Diagnostics.Stopwatch();
            StreamWriter strw = new StreamWriter("log.txt");
            s.Start();
            System.Reflection.Assembly.Load("Cosmos.Build.Common");
            System.Reflection.Assembly.Load("Cosmos.Compiler.Assembler");
            System.Reflection.Assembly.Load("Cosmos.Compiler.Assembler.X86");
            System.Reflection.Assembly.Load("Cosmos.Core.Plugs");
            System.Reflection.Assembly.Load("Cosmos.Debug.Common");
            System.Reflection.Assembly.Load("Cosmos.Debug.DebugStub");
            System.Reflection.Assembly.Load("Cosmos.Debug.Kernel");
            System.Reflection.Assembly.Load("Cosmos.Debug.Kernel.Plugs");
            System.Reflection.Assembly.Load("Cosmos.IL2CPU");
            System.Reflection.Assembly.Load("Cosmos.IL2CPU.Plugs");
            System.Reflection.Assembly.Load("Cosmos.IL2CPU.X86");
            System.Reflection.Assembly.Load("Cosmos.System");
            System.Reflection.Assembly.Load("Cosmos.System.Plugs");
            var xInitMethod = typeof(StructTest.Kernel).GetConstructor(Type.EmptyTypes);
            var xOutputFilename = System.Windows.Forms.Application.StartupPath + "\\" + "StructTest";
            var xAsm = new AppAssemblerNasm(0);
            using (var xDebugInfo = new DebugInfo())
            {
                xDebugInfo.CreateCPDB(xOutputFilename + ".cpdb");
                xAsm.DebugInfo = xDebugInfo;
                xAsm.DebugMode = DebugMode.None;
                xAsm.TraceAssemblies = TraceAssemblies.All;
                xAsm.ShouldOptimize = true;

                var xNasmAsm = (AssemblerNasm)xAsm.Assembler;
                xAsm.Assembler.Initialize();
                using (var xScanner = new ILScanner(xAsm))
                {
                    // TODO: shouldn't be here?
                    xScanner.QueueMethod(xInitMethod.DeclaringType.BaseType.GetMethod("Start"));
                    xScanner.Execute(xInitMethod);

                    using (var xOut = new StreamWriter(xOutputFilename + ".asm", false))
                    {
                        xAsm.Assembler.FlushText(xOut);
                    }
                }
            }
            s.Stop();
            strw.Write("Total Time to Run: " + s.ElapsedMilliseconds.ToString() + "ms");
            strw.Close();
        }
コード例 #2
0
        public bool Execute()
        {
            try
            {
                LogMessage("Executing IL2CPU on assembly");
                if (!Initialize())
                {
                    return(false);
                }
                LogTime("Engine execute started");

                AssemblyLoadContext.Default.Resolving += Default_Resolving;

                // Gen2
                // Find the kernel's entry point. We are looking for a public class Kernel, with public static void Boot()
                MethodBase xKernelCtor = null;

                if (UseGen3Kernel)
                {
                    LoadBootEntries();
                }
                else
                {
                    xKernelCtor = LoadAssemblies();
                    if (xKernelCtor == null)
                    {
                        return(false);
                    }
                }

                var xOutputFilename = Path.Combine(Path.GetDirectoryName(OutputFilename), Path.GetFileNameWithoutExtension(OutputFilename));
                if (!DebugEnabled)
                {
                    // Default of 1 is in Cosmos.Targets. Need to change to use proj props.
                    DebugCom = 0;
                }

                using (var xAsm = GetAppAssembler())
                {
                    using (var xDebugInfo = new DebugInfo(xOutputFilename + ".cdb", true, false))
                    {
                        xAsm.DebugInfo                     = xDebugInfo;
                        xAsm.DebugEnabled                  = DebugEnabled;
                        xAsm.StackCorruptionDetection      = StackCorruptionDetectionEnabled;
                        xAsm.StackCorruptionDetectionLevel = mStackCorruptionDetectionLevel;
                        xAsm.DebugMode                     = mDebugMode;
                        xAsm.TraceAssemblies               = mTraceAssemblies;
                        xAsm.IgnoreDebugStubAttribute      = IgnoreDebugStubAttribute;
                        if (DebugEnabled == false)
                        {
                            xAsm.ShouldOptimize = true;
                        }

                        xAsm.Assembler.Initialize();
                        using (var xScanner = new ILScanner(xAsm))
                        {
                            xScanner.LogException       = LogException;
                            xScanner.LogWarning         = LogWarning;
                            CompilerHelpers.DebugEvent += LogMessage;
                            if (EnableLogging)
                            {
                                var xLogFile = xOutputFilename + ".log.html";
                                if (false == xScanner.EnableLogging(xLogFile))
                                {
                                    // file creation not possible
                                    EnableLogging = false;
                                    LogWarning("Could not create the file \"" + xLogFile + "\"! No log will be created!");
                                }
                            }

                            if (UseGen3Kernel)
                            {
                                xScanner.Execute(mBootEntries.Keys.ToArray(), mForceIncludes);
                            }
                            else
                            {
                                xScanner.QueueMethod(xKernelCtor.DeclaringType.BaseType.GetMethod(UseGen3Kernel ? "EntryPoint" : "Start"));
                                xScanner.Execute(xKernelCtor);
                            }

                            //AppAssemblerRingsCheck.Execute(xScanner, xKernelCtor.DeclaringType.Assembly);

                            using (var xOut = new StreamWriter(File.Create(OutputFilename), Encoding.ASCII, 128 * 1024))
                            {
                                //if (EmitDebugSymbols) {
                                xAsm.Assembler.FlushText(xOut);
                                xAsm.FinalizeDebugInfo();
                                //// for now: write debug info to console
                                //Console.WriteLine("Wrote {0} instructions and {1} datamembers", xAsm.Assembler.Instructions.Count, xAsm.Assembler.DataMembers.Count);
                                //var dict = new Dictionary<string, long>(StringComparer.OrdinalIgnoreCase);
                                //foreach (var instr in xAsm.Assembler.Instructions)
                                //{
                                //    var mn = instr.Mnemonic ?? "";
                                //    if (dict.ContainsKey(mn))
                                //    {
                                //        dict[mn] = dict[mn] + 1;
                                //    }
                                //    else
                                //    {
                                //        dict[mn] = 1;
                                //    }
                                //}
                                //foreach (var entry in dict)
                                //{
                                //    Console.WriteLine("{0}|{1}", entry.Key, entry.Value);
                                //}
                            }
                        }
                        // If you want to uncomment this line make sure to enable PERSISTANCE_PROFILING symbol in
                        // DebugInfo.cs file.
                        //LogMessage(string.Format("DebugInfo flatening {0} seconds, persistance : {1} seconds",
                        //    (int)xDebugInfo.FlateningDuration.TotalSeconds,
                        //    (int)xDebugInfo.PersistanceDuration.TotalSeconds));
                    }
                }
                LogTime("Engine execute finished");
                return(true);
            }
            catch (Exception ex)
            {
                LogException(ex);
                LogMessage("Loaded assemblies: ");
                foreach (var xAsm in AssemblyLoadContext.Default.GetLoadedAssemblies())
                {
                    if (xAsm.IsDynamic)
                    {
                        continue;
                    }

                    try
                    {
                        LogMessage(xAsm.Location);
                    }
                    catch
                    {
                    }
                }
                return(false);
            }
        }
コード例 #3
0
        /// <summary>
        /// This method validates rings. Assemblies are specific for a given ring and are able to be dependent on assemblies in
        /// the same ring or one ring "up" (ie, User can reference System, etc), but not other way around.
        /// </summary>
        /// <param name="scanner"></param>
        /// <param name="entryAssembly"></param>
        public static void Execute(ILScanner scanner, Assembly entryAssembly)
        {
            if (entryAssembly == null)
            {
                throw new ArgumentNullException(nameof(entryAssembly));
            }

            RingsWriteLine("Start check");

            // verify the entry assembly is in the User ring.
            var xRing = GetRingFromAssembly(entryAssembly);

            if (xRing != Ring.User)
            {
                throw new Exception($"Assembly '{entryAssembly.GetName().Name}' contains your kernel class, which means it should be in the ring {Ring.User}!");
            }

            foreach (var xAssembly in scanner.mUsedAssemblies)
            {
                if (IsAssemblySkippedDuringRingCheck(xAssembly))
                {
                    continue;
                }

                RingsWriteLine("Assembly '{0}'", xAssembly.GetName().Name);
                xRing = GetRingFromAssembly(xAssembly);
                var xRingInt = (int)xRing;

                RingsWriteLine("\t\tRing = {0}", xRing);
                foreach (var xAsmDepRef in xAssembly.GetReferencedAssemblies())
                {
                    var xAsmDep = scanner.mUsedAssemblies.FirstOrDefault(i => i.GetName().Name == xAsmDepRef.Name);
                    if (xAsmDep == null || IsAssemblySkippedDuringRingCheck(xAsmDep))
                    {
                        continue;
                    }
                    RingsWriteLine("\tDependency '{0}'", xAsmDepRef.Name);
                    var xDepRing = GetRingFromAssembly(xAsmDep);
                    RingsWriteLine("\t\tRing = {0}", xDepRing);

                    var xDepRingInt = (int)xDepRing;

                    if (xDepRingInt == xRingInt)
                    {
                        // assembly and its dependency are in the same ring.
                        continue;
                    }
                    if (xDepRingInt > xRingInt)
                    {
                        throw new Exception($"Assembly '{xAssembly.GetName().Name}' is in ring {xRing}({xRingInt}). It references assembly '{xAsmDepRef.Name}' which is in ring {xDepRing}({xDepRingInt}), but this is not allowed!");
                    }

                    var xRingDiff = xRingInt - xDepRingInt;
                    if (xRingDiff == 1)
                    {
                        // 1 level up is allowed
                        continue;
                    }
                    throw new Exception($"Assembly '{xAssembly.GetName().Name}' is in ring {xRing}({xRingInt}). It references assembly '{xAsmDepRef.Name}' which is in ring {xDepRing}({xDepRingInt}), but this is not allowed!");
                }

                // now do per-ring checks:
                switch (xRing)
                {
                case Ring.User:
                    ValidateUserAssembly(xAssembly);
                    break;

                case Ring.Core:
                    ValidateCoreAssembly(xAssembly);
                    break;

                case Ring.HAL:
                    ValidateHALAssembly(xAssembly);
                    break;

                case Ring.System:
                    ValidateSystemAssembly(xAssembly);
                    break;

                default:
                    throw new NotImplementedException($"Ring {xRing} not implemented");
                }
            }
        }
コード例 #4
0
        /// <summary>
        /// This method validates rings. Assemblies are specific for a given ring and are able to be dependent on assemblies in
        /// the same ring or one ring "up" (ie, User can reference System, etc), but not other way around.
        /// </summary>
        /// <param name="scanner"></param>
        public static void Execute(ILScanner scanner)
        {
            RingsWriteLine("Start check");

            foreach (var xAssembly in scanner.mUsedAssemblies)
            {
                if (IsAssemblySkippedDuringRingCheck(xAssembly))
                {
                    continue;
                }

                RingsWriteLine("Assembly '{0}'", xAssembly.GetName().Name);
                var xRing = GetRingFromAssembly(xAssembly);
                var xRingInt = (int)xRing;

                RingsWriteLine("\t\tRing = {0}", xRing);
                foreach (var xAsmDepRef in xAssembly.GetReferencedAssemblies())
                {
                    var xAsmDep = scanner.mUsedAssemblies.FirstOrDefault(i => i.GetName().Name == xAsmDepRef.Name);
                    if (xAsmDep == null || IsAssemblySkippedDuringRingCheck(xAsmDep))
                    {
                        continue;
                    }
                    RingsWriteLine("\tDependency '{0}'", xAsmDepRef.Name);
                    var xDepRing = GetRingFromAssembly(xAsmDep);
                    RingsWriteLine("\t\tRing = {0}", xDepRing);

                    var xDepRingInt = (int)xDepRing;

                    if (xDepRingInt == xRingInt)
                    {
                        // assembly and its dependency are in the same ring.
                        continue;
                    }
                    if (xDepRingInt > xRingInt)
                    {
                        throw new Exception(string.Format("Assembly '{0}' is in ring {1}({2}). It references assembly '{3}' which is in ring {4}({5}), but this is not allowed!", xAssembly.GetName().Name, xRing, xRingInt, xAsmDepRef.Name, xDepRing, xDepRingInt));
                    }

                    var xRingDiff = xRingInt - xDepRingInt;
                    if (xRingDiff == 1)
                    {
                        // 1 level up is allowed
                        continue;
                    }
                    throw new Exception(string.Format("Assembly '{0}' is in ring {1}({2}). It references assembly '{3}' which is in ring {4}({5}), but this is not allowed!", xAssembly.GetName().Name, xRing, xRingInt, xAsmDepRef.Name, xDepRing, xDepRingInt));
                }

                // now do per-ring checks:
                switch (xRing)
                {
                    case Ring.User:
                        ValidateUserAssembly(xAssembly);
                        break;
                    case Ring.Core:
                        ValidateCoreAssembly(xAssembly);
                        break;
                    case Ring.HAL:
                        ValidateHALAssembly(xAssembly);
                        break;
                    case Ring.System:
                        ValidateSystemAssembly(xAssembly);
                        break;
                    default:
                        throw new NotImplementedException(String.Format("Ring {0} not implemented", xRing));
                }
            }
        }
コード例 #5
0
ファイル: CompilerEngine.cs プロジェクト: Zino2201/Cosmos
        public bool Execute()
        {
            try
            {
                LogMessage("Executing IL2CPU on assembly");
                if (!Initialize())
                {
                    return false;
                }
                LogTime("Engine execute started");

                // Find the kernel's entry point. We are looking for a public class Kernel, with public static void Boot()
                var xInitMethod = LoadAssemblies();
                if (xInitMethod == null)
                {
                    return false;
                }

                var xOutputFilename = Path.Combine(Path.GetDirectoryName(OutputFilename), Path.GetFileNameWithoutExtension(OutputFilename));
                if (!DebugEnabled)
                {
                    // Default of 1 is in Cosmos.Targets. Need to change to use proj props.
                    DebugCom = 0;
                }

                using (var xAsm = GetAppAssembler())
                {
                    using (var xDebugInfo = new DebugInfo(xOutputFilename + ".cdb", true, false))
                    {
                        xAsm.DebugInfo = xDebugInfo;
                        xAsm.DebugEnabled = DebugEnabled;
                        xAsm.StackCorruptionDetection = StackCorruptionDetectionEnabled;
                        xAsm.StackCorruptionDetectionLevel = mStackCorruptionDetectionLevel;
                        xAsm.DebugMode = mDebugMode;
                        xAsm.TraceAssemblies = mTraceAssemblies;
                        xAsm.IgnoreDebugStubAttribute = IgnoreDebugStubAttribute;
                        if (DebugEnabled == false)
                        {
                            xAsm.ShouldOptimize = true;
                        }

                        xAsm.Assembler.Initialize();
                        using (var xScanner = new ILScanner(xAsm))
                        {
                            xScanner.LogException = LogException;
                            xScanner.LogWarning = LogWarning;
                            CompilerHelpers.DebugEvent += LogMessage;
                            if (EnableLogging)
                            {
                                var xLogFile = xOutputFilename + ".log.html";
                                if (false == xScanner.EnableLogging(xLogFile))
                                {
                                    // file creation not possible
                                    EnableLogging = false;
                                    LogWarning("Could not create the file \"" + xLogFile + "\"! No log will be created!");
                                }
                            }
                            xScanner.QueueMethod(xInitMethod.DeclaringType.BaseType.GetMethod("Start"));
                            xScanner.Execute(xInitMethod);

                            AppAssemblerRingsCheck.Execute(xScanner, xInitMethod.DeclaringType.Assembly);

                            using (var xOut = new StreamWriter(OutputFilename, false, Encoding.ASCII, 128 * 1024))
                            {
                                //if (EmitDebugSymbols) {
                                xAsm.Assembler.FlushText(xOut);
                                xAsm.FinalizeDebugInfo();
                                //// for now: write debug info to console
                                //Console.WriteLine("Wrote {0} instructions and {1} datamembers", xAsm.Assembler.Instructions.Count, xAsm.Assembler.DataMembers.Count);
                                //var dict = new Dictionary<string, long>(StringComparer.OrdinalIgnoreCase);
                                //foreach (var instr in xAsm.Assembler.Instructions)
                                //{
                                //    var mn = instr.Mnemonic ?? "";
                                //    if (dict.ContainsKey(mn))
                                //    {
                                //        dict[mn] = dict[mn] + 1;
                                //    }
                                //    else
                                //    {
                                //        dict[mn] = 1;
                                //    }
                                //}
                                //foreach (var entry in dict)
                                //{
                                //    Console.WriteLine("{0}|{1}", entry.Key, entry.Value);
                                //}
                            }
                        }
                        // If you want to uncomment this line make sure to enable PERSISTANCE_PROFILING symbol in
                        // DebugInfo.cs file.
                        //LogMessage(string.Format("DebugInfo flatening {0} seconds, persistance : {1} seconds",
                        //    (int)xDebugInfo.FlateningDuration.TotalSeconds,
                        //    (int)xDebugInfo.PersistanceDuration.TotalSeconds));
                    }
                }
                LogTime("Engine execute finished");
                return true;
            }
            catch (Exception ex)
            {
                LogException(ex);
                LogMessage("Loaded assemblies: ");
                foreach (var xAsm in AppDomain.CurrentDomain.GetAssemblies())
                {
                    // HACK: find another way to skip dynamic assemblies (which belong to dynamic methods)
                    if (xAsm.IsDynamic)
                    {
                        continue;
                    }

                    try
                    {
                        LogMessage(xAsm.Location);
                    }
                    catch
                    {
                    }
                }
                return false;
            }
        }
コード例 #6
0
        /// <summary>
        /// This method validates rings. Assemblies are specific for a given ring and are able to be dependent on assemblies in
        /// the same ring or one ring "up" (ie, User can reference System, etc), but not other way around.
        /// </summary>
        /// <param name="scanner"></param>
        public static void Execute(ILScanner scanner)
        {
            RingsWriteLine("Start check");

            foreach (var xAssembly in scanner.mUsedAssemblies)
            {
                if (IsAssemblySkippedDuringRingCheck(xAssembly))
                {
                    continue;
                }

                RingsWriteLine("Assembly '{0}'", xAssembly.GetName().Name);
                var xRing    = GetRingFromAssembly(xAssembly);
                var xRingInt = (int)xRing;

                RingsWriteLine("\t\tRing = {0}", xRing);
                foreach (var xAsmDepRef in xAssembly.GetReferencedAssemblies())
                {
                    var xAsmDep = scanner.mUsedAssemblies.FirstOrDefault(i => i.GetName().Name == xAsmDepRef.Name);
                    if (xAsmDep == null || IsAssemblySkippedDuringRingCheck(xAsmDep))
                    {
                        continue;
                    }
                    RingsWriteLine("\tDependency '{0}'", xAsmDepRef.Name);
                    var xDepRing = GetRingFromAssembly(xAsmDep);
                    RingsWriteLine("\t\tRing = {0}", xDepRing);

                    var xDepRingInt = (int)xDepRing;

                    if (xDepRingInt == xRingInt)
                    {
                        // assembly and its dependency are in the same ring.
                        continue;
                    }
                    if (xDepRingInt > xRingInt)
                    {
                        throw new Exception(string.Format("Assembly '{0}' is in ring {1}({2}). It references assembly '{3}' which is in ring {4}({5}), but this is not allowed!", xAssembly.GetName().Name, xRing, xRingInt, xAsmDepRef.Name, xDepRing, xDepRingInt));
                    }

                    var xRingDiff = xRingInt - xDepRingInt;
                    if (xRingDiff == 1)
                    {
                        // 1 level up is allowed
                        continue;
                    }
                    throw new Exception(string.Format("Assembly '{0}' is in ring {1}({2}). It references assembly '{3}' which is in ring {4}({5}), but this is not allowed!", xAssembly.GetName().Name, xRing, xRingInt, xAsmDepRef.Name, xDepRing, xDepRingInt));
                }

                // now do per-ring checks:
                switch (xRing)
                {
                case Ring.User:
                    ValidateUserAssembly(xAssembly);
                    break;

                case Ring.Core:
                    ValidateCoreAssembly(xAssembly);
                    break;

                case Ring.HAL:
                    ValidateHALAssembly(xAssembly);
                    break;

                case Ring.System:
                    ValidateSystemAssembly(xAssembly);
                    break;

                default:
                    throw new NotImplementedException(String.Format("Ring {0} not implemented", xRing));
                }
            }
        }
コード例 #7
0
        /// <summary>
        /// This method validates rings. Assemblies are specific for a given ring and are able to be dependent on assemblies in
        /// the same ring or one ring "up" (ie, User can reference System, etc), but not other way around.
        /// </summary>
        /// <param name="scanner"></param>
        /// <param name="entryAssembly"></param>
        public static void Execute(ILScanner scanner, Assembly entryAssembly)
        {
            if (entryAssembly == null)
            {
                throw new ArgumentNullException(nameof(entryAssembly));
            }

            RingsWriteLine("Start check");

            // verify the entry assembly is in the User ring.
            var xRing = GetRingFromAssembly(entryAssembly);
            if (xRing != Ring.User)
            {
                throw new Exception($"Assembly '{entryAssembly.GetName().Name}' contains your kernel class, which means it should be in the ring {Ring.User}!");
            }

            foreach (var xAssembly in scanner.mUsedAssemblies)
            {
                if (IsAssemblySkippedDuringRingCheck(xAssembly))
                {
                    continue;
                }

                RingsWriteLine("Assembly '{0}'", xAssembly.GetName().Name);
                xRing = GetRingFromAssembly(xAssembly);
                var xRingInt = (int)xRing;

                RingsWriteLine("\t\tRing = {0}", xRing);
                foreach (var xAsmDepRef in xAssembly.GetReferencedAssemblies())
                {
                    var xAsmDep = scanner.mUsedAssemblies.FirstOrDefault(i => i.GetName().Name == xAsmDepRef.Name);
                    if (xAsmDep == null || IsAssemblySkippedDuringRingCheck(xAsmDep))
                    {
                        continue;
                    }
                    RingsWriteLine("\tDependency '{0}'", xAsmDepRef.Name);
                    var xDepRing = GetRingFromAssembly(xAsmDep);
                    RingsWriteLine("\t\tRing = {0}", xDepRing);

                    var xDepRingInt = (int)xDepRing;

                    if (xDepRingInt == xRingInt)
                    {
                        // assembly and its dependency are in the same ring.
                        continue;
                    }
                    if (xDepRingInt > xRingInt)
                    {
                        throw new Exception($"Assembly '{xAssembly.GetName().Name}' is in ring {xRing}({xRingInt}). It references assembly '{xAsmDepRef.Name}' which is in ring {xDepRing}({xDepRingInt}), but this is not allowed!");
                    }

                    var xRingDiff = xRingInt - xDepRingInt;
                    if (xRingDiff == 1)
                    {
                        // 1 level up is allowed
                        continue;
                    }
                    throw new Exception($"Assembly '{xAssembly.GetName().Name}' is in ring {xRing}({xRingInt}). It references assembly '{xAsmDepRef.Name}' which is in ring {xDepRing}({xDepRingInt}), but this is not allowed!");
                }

                // now do per-ring checks:
                switch (xRing)
                {
                    case Ring.User:
                        ValidateUserAssembly(xAssembly);
                        break;
                    case Ring.Core:
                        ValidateCoreAssembly(xAssembly);
                        break;
                    case Ring.HAL:
                        ValidateHALAssembly(xAssembly);
                        break;
                    case Ring.System:
                        ValidateSystemAssembly(xAssembly);
                        break;
                    default:
                        throw new NotImplementedException($"Ring {xRing} not implemented");
                }
            }
        }
コード例 #8
0
ファイル: CompilerEngine.cs プロジェクト: aura-systems/IL2CPU
        public bool Execute()
        {
            try
            {
                LogMessage("Executing IL2CPU on assembly");
                LogTime("Engine execute started");

                // Gen2
                // Find the kernel's entry point. We are looking for a public class Kernel, with public static void Boot()
                MethodBase xKernelCtor = null;

                if (UseGen3Kernel)
                {
                    LoadBootEntries();
                }
                else
                {
                    xKernelCtor = LoadAssemblies();
                    if (xKernelCtor == null)
                    {
                        return false;
                    }
                }

                var debugCom = mSettings.DebugCom;

                if (!mSettings.EnableDebug)
                {
                    // Default of 1 is in Cosmos.Targets. Need to change to use proj props.
                    debugCom = 0;
                }

                using (var xAsm = GetAppAssembler(debugCom))
                {
                    var xOutputFilenameWithoutExtension = Path.ChangeExtension(mSettings.OutputFilename, null);

                    using (var xDebugInfo = new DebugInfo(xOutputFilenameWithoutExtension + ".cdb", true, false))
                    {
                        xAsm.DebugInfo = xDebugInfo;
                        xAsm.DebugEnabled = mSettings.EnableDebug;
                        xAsm.StackCorruptionDetection = mSettings.EnableStackCorruptionDetection;
                        xAsm.StackCorruptionDetectionLevel = mSettings.StackCorruptionDetectionLevel;
                        xAsm.DebugMode = mSettings.DebugMode;
                        xAsm.TraceAssemblies = mSettings.TraceAssemblies;
                        xAsm.IgnoreDebugStubAttribute = mSettings.IgnoreDebugStubAttribute;
                        if (!mSettings.EnableDebug)
                        {
                            xAsm.ShouldOptimize = true;
                        }

                        bool VBEMultiboot = false;
                        string VBEResolution;
                        if(mSettings.CompileVBEMultiboot)
                        {
                            VBEMultiboot = true;
                        }
                        else
                        {
                            VBEMultiboot = false;
                        }
                        if(String.IsNullOrEmpty(mSettings.VBEResolution))
                        {
                            VBEResolution = "800x600x32";
                        }
                        else
                        {
                            VBEResolution=mSettings.VBEResolution;
                        }
                        xAsm.Assembler.Initialize(VBEMultiboot, VBEResolution);

                        if (mSettings.DebugMode != DebugMode.IL)
                        {
                            xAsm.Assembler.EmitAsmLabels = false;
                        }

                        using (var xScanner = new ILScanner(xAsm, new TypeResolver(_assemblyLoadContext), LogException, LogWarning))
                        {
                            CompilerHelpers.DebugEvent += LogMessage;
                            if (mSettings.EnableLogging)
                            {
                                var xLogFile = xOutputFilenameWithoutExtension + ".log.html";
                                if (!xScanner.EnableLogging(xLogFile))
                                {
                                    // file creation not possible
                                    LogWarning("Could not create the file \"" + xLogFile + "\"! No log will be created!");
                                }
                            }

                            var plugsAssemblies = mSettings.PlugsReferences.Select(
                                r => _assemblyLoadContext.LoadFromAssemblyPath(r));

                            if (UseGen3Kernel)
                            {
                                xScanner.Execute(mBootEntries.Keys.ToArray(), mForceIncludes, plugsAssemblies);
                            }
                            else
                            {
                                xScanner.QueueMethod(xKernelCtor.DeclaringType.BaseType.GetMethod(UseGen3Kernel ? "EntryPoint" : "Start"));
                                xScanner.Execute(xKernelCtor, plugsAssemblies);
                            }

                            //AppAssemblerRingsCheck.Execute(xScanner, xKernelCtor.DeclaringType.Assembly);

                            using (var xOut = new StreamWriter(File.Create(mSettings.OutputFilename), Encoding.ASCII, 128 * 1024))
                            {
                                //if (EmitDebugSymbols) {
                                xAsm.Assembler.FlushText(xOut);
                                xAsm.FinalizeDebugInfo();
                                //// for now: write debug info to console
                                //Console.WriteLine("Wrote {0} instructions and {1} datamembers", xAsm.Assembler.Instructions.Count, xAsm.Assembler.DataMembers.Count);
                                //var dict = new Dictionary<string, long>(StringComparer.OrdinalIgnoreCase);
                                //foreach (var instr in xAsm.Assembler.Instructions)
                                //{
                                //    var mn = instr.Mnemonic ?? "";
                                //    if (dict.ContainsKey(mn))
                                //    {
                                //        dict[mn] = dict[mn] + 1;
                                //    }
                                //    else
                                //    {
                                //        dict[mn] = 1;
                                //    }
                                //}
                                //foreach (var entry in dict)
                                //{
                                //    Console.WriteLine("{0}|{1}", entry.Key, entry.Value);
                                //}
                            }
                        }
                        // If you want to uncomment this line make sure to enable PERSISTANCE_PROFILING symbol in
                        // DebugInfo.cs file.
                        //LogMessage(string.Format("DebugInfo flatening {0} seconds, persistance : {1} seconds",
                        //    (int)xDebugInfo.FlateningDuration.TotalSeconds,
                        //    (int)xDebugInfo.PersistanceDuration.TotalSeconds));
                    }
                }
                LogTime("Engine execute finished");
                return true;
            }
            catch (Exception ex)
            {
                LogException(ex);
                return false;
            }
        }