mcs/tools/mkbundle/mkbundle.cs

   1 //
   2 // mkbundle: tool to create bundles.
   3 //
   4 // Based on the `make-bundle' Perl script written by Paolo Molaro (lupus@debian.org)
   5 //
   6 // TODO:
   7 //   [x] Rename the paths for the zip file that is downloaded
   8 //   [x] Update documentation with new flag
   9 //   [x] Load internationalized assemblies
  10 //   [x] Dependencies - if System.dll -> include Mono.Security.* (not needed, automatic)
  11 //   [x] --list-targets should download from a different url
  12 //   [x] --fetch-target should unpack zip file
  13 //   [x] Update --cross to use not a runtime, but an SDK
  14 //   [x] Update --local-targets to show the downloaded SDKs
  15 //
  16 // Author:
  17 //   Miguel de Icaza
  18 //
  19 // (C) Novell, Inc 2004
  20 // (C) 2016 Xamarin Inc
  21 //
  22 // Missing features:
  23 // * Add support for packaging native libraries, extracting at runtime and setting the library path.
  24 // * Implement --list-targets lists all the available remote targets
  25 //
  26 using System;
  27 using System.Diagnostics;
  28 using System.Xml;
  29 using System.Collections.Generic;
  30 using System.IO;
  31 using System.IO.Compression;
  32 using System.Runtime.InteropServices;
  33 using System.Text;
  34 using IKVM.Reflection;
  35 using System.Linq;
  36 using System.Net;
  37 using System.Threading.Tasks;
  38
  39 class MakeBundle {
  40         static string output = "a.out";
  41         static string object_out = null;
  42         static List<string> link_paths = new List<string> ();
  43         static Dictionary<string,string> libraries = new Dictionary<string,string> ();
  44         static bool autodeps = false;
  45         static bool keeptemp = false;
  46         static bool compile_only = false;
  47         static bool static_link = false;
  48         static string config_file = null;
  49         static string machine_config_file = null;
  50         static string config_dir = null;
  51         static string style = "linux";
  52         static bool bundled_header = false;
  53         static string os_message = "";
  54         static bool compress;
  55         static bool nomain;
  56         static string custom_main = null;
  57         static bool? use_dos2unix = null;
  58         static bool skip_scan;
  59         static string ctor_func;
  60         static bool quiet = true;
  61         static string cross_target = null;
  62         static string fetch_target = null;
  63         static bool custom_mode = true;
  64         static string embedded_options = null;
  65         static string runtime = null;
  66         static string sdk_path = null;
  67         static string lib_path = null;
  68         static Dictionary<string,string> environment = new Dictionary<string,string>();
  69         static string [] i18n = new string [] {
  70                 "West",
  71                 ""
  72         };
  73         static string [] i18n_all = new string [] {
  74                 "CJK",
  75                 "MidEast",
  76                 "Other",
  77                 "Rare",
  78                 "West",
  79                 ""
  80         };
  81         static string target_server = "https://download.mono-project.com/runtimes/raw/";
  82
  83         static int Main (string [] args)
  84         {
  85                 List<string> sources = new List<string> ();
  86                 int top = args.Length;
  87                 link_paths.Add (".");
  88
  89                 DetectOS ();
  90
  91                 for (int i = 0; i < top; i++){
  92                         switch (args [i]){
  93                         case "--help": case "-h": case "-?":
  94                                 Help ();
  95                                 return 1;
  96
  97                         case "--simple":
  98                                 custom_mode = false;
  99                                 autodeps = true;
 100                                 break;
 101
 102                         case "-v":
 103                                 quiet = false;
 104                                 break;
 105
 106                         case "--i18n":
 107                                 if (i+1 == top){
 108                                         Help ();
 109                                         return 1;
 110                                 }
 111                                 var iarg = args [++i];
 112                                 if (iarg == "all")
 113                                         i18n = i18n_all;
 114                                 else if (iarg == "none")
 115                                         i18n = new string [0];
 116                                 else
 117                                         i18n = iarg.Split (',');
 118                                 break;
 119
 120                         case "--custom":
 121                                 custom_mode = true;
 122                                 break;
 123
 124                         case "-c":
 125                                 compile_only = true;
 126                                 break;
 127
 128                         case "--local-targets":
 129                                 CommandLocalTargets ();
 130                                 return 0;
 131
 132                         case "--cross":
 133                                 if (i+1 == top){
 134                                         Help ();
 135                                         return 1;
 136                                 }
 137                                 if (sdk_path != null || runtime != null)
 138                                         Error ("You can only specify one of --runtime, --sdk or --cross");
 139                                 custom_mode = false;
 140                                 autodeps = true;
 141                                 cross_target = args [++i];
 142                                 break;
 143
 144                         case "--library":
 145                                 if (i+1 == top){
 146                                         Help ();
 147                                         return 1;
 148                                 }
 149                                 if (custom_mode){
 150                                         Console.Error.WriteLine ("--library can only be used with --simple/--runtime/--cross mode");
 151                                         Help ();
 152                                         return 1;
 153                                 }
 154                                 var lspec = args [++i];
 155                                 var p = lspec.IndexOf (",");
 156                                 string alias, path;
 157                                 if (p == -1){
 158                                         alias = Path.GetFileName (lspec);
 159                                         path = lspec;
 160                                 } else {
 161                                         alias = lspec.Substring (0, p);
 162                                         path = lspec.Substring (p+1);
 163                                 }
 164                                 if (!File.Exists (path))
 165                                         Error ($"The specified library file {path} does not exist");
 166                                 libraries [alias] = path;
 167                                 break;
 168
 169                         case "--fetch-target":
 170                                 if (i+1 == top){
 171                                         Help ();
 172                                         return 1;
 173                                 }
 174                                 fetch_target = args [++i];
 175                                 break;
 176
 177                         case "--list-targets":
 178                                 CommandLocalTargets ();
 179                                 var wc = new WebClient ();
 180                                 var s = wc.DownloadString (new Uri (target_server + "target-sdks.txt"));
 181                                 Console.WriteLine ("Targets available for download with --fetch-target:\n" + s);
 182                                 return 0;
 183
 184                         case "--target-server":
 185                                 if (i+1 == top){
 186                                         Help ();
 187                                         return 1;
 188                                 }
 189                                 target_server = args [++i];
 190                                 break;
 191
 192                         case "-o":
 193                                 if (i+1 == top){
 194                                         Help ();
 195                                         return 1;
 196                                 }
 197                                 output = args [++i];
 198                                 break;
 199
 200                         case "--options":
 201                                 if (i+1 == top){
 202                                         Help ();
 203                                         return 1;
 204                                 }
 205                                 embedded_options = args [++i];
 206                                 break;
 207                         case "--sdk":
 208                                 if (i + 1 == top) {
 209                                         Help ();
 210                                         return 1;
 211                                 }
 212                                 custom_mode = false;
 213                                 autodeps = true;
 214                                 sdk_path = args [++i];
 215                                 if (cross_target != null || runtime != null)
 216                                         Error ("You can only specify one of --runtime, --sdk or --cross");
 217                                 break;
 218                         case "--runtime":
 219                                 if (i+1 == top){
 220                                         Help ();
 221                                         return 1;
 222                                 }
 223                                 if (sdk_path != null || cross_target != null)
 224                                         Error ("You can only specify one of --runtime, --sdk or --cross");
 225                                 custom_mode = false;
 226                                 autodeps = true;
 227                                 runtime = args [++i];
 228                                 break;
 229                         case "-oo":
 230                                 if (i+1 == top){
 231                                         Help ();
 232                                         return 1;
 233                                 }
 234                                 object_out = args [++i];
 235                                 break;
 236
 237                         case "-L":
 238                                 if (i+1 == top){
 239                                         Help ();
 240                                         return 1;
 241                                 }
 242                                 link_paths.Add (args [++i]);
 243                                 break;
 244
 245                         case "--nodeps":
 246                                 autodeps = false;
 247                                 break;
 248
 249                         case "--deps":
 250                                 autodeps = true;
 251                                 break;
 252
 253                         case "--keeptemp":
 254                                 keeptemp = true;
 255                                 break;
 256
 257                         case "--static":
 258                                 static_link = true;
 259                                 break;
 260                         case "--config":
 261                                 if (i+1 == top) {
 262                                         Help ();
 263                                         return 1;
 264                                 }
 265
 266                                 config_file = args [++i];
 267                                 break;
 268                         case "--machine-config":
 269                                 if (i+1 == top) {
 270                                         Help ();
 271                                         return 1;
 272                                 }
 273
 274                                 machine_config_file = args [++i];
 275
 276                                 if (!quiet)
 277                                         Console.WriteLine ("WARNING:\n  Check that the machine.config file you are bundling\n  doesn't contain sensitive information specific to this machine.");
 278                                 break;
 279                         case "--config-dir":
 280                                 if (i+1 == top) {
 281                                         Help ();
 282                                         return 1;
 283                                 }
 284
 285                                 config_dir = args [++i];
 286                                 break;
 287                         case "-z":
 288                                 compress = true;
 289                                 break;
 290                         case "--nomain":
 291                                 nomain = true;
 292                                 break;
 293                         case "--custom-main":
 294                                 if (i+1 == top) {
 295                                         Help ();
 296                                         return 1;
 297                                 }
 298                                 custom_main = args [++i];
 299                                 break;
 300                         case "--style":
 301                                 if (i+1 == top) {
 302                                         Help ();
 303                                         return 1;
 304                                 }
 305                                 style = args [++i];
 306                                 switch (style) {
 307                                 case "windows":
 308                                 case "mac":
 309                                 case "linux":
 310                                         break;
 311                                 default:
 312                                         Error ("Invalid style '{0}' - only 'windows', 'mac' and 'linux' are supported for --style argument", style);
 313                                         return 1;
 314                                 }
 315
 316                                 break;
 317                         case "--skip-scan":
 318                                 skip_scan = true;
 319                                 break;
 320                         case "--static-ctor":
 321                                 if (i+1 == top) {
 322                                         Help ();
 323                                         return 1;
 324                                 }
 325                                 ctor_func = args [++i];
 326                                 break;
 327                         case "--dos2unix":
 328                         case "--dos2unix=true":
 329                                 use_dos2unix = true;
 330                                 break;
 331                         case "--dos2unix=false":
 332                                 use_dos2unix = false;
 333                                 break;
 334                         case "-q":
 335                         case "--quiet":
 336                                 quiet = true;
 337                                 break;
 338                         case "-e":
 339                         case "--env":
 340                                 if (i+1 == top) {
 341                                         Help ();
 342                                         return 1;
 343                                 }
 344                                 var env = args [++i];
 345                                 p = env.IndexOf ('=');
 346                                 if (p == -1)
 347                                         environment.Add (env, "");
 348                                 else
 349                                         environment.Add (env.Substring (0, p), env.Substring (p+1));
 350                                 break;
 351                         case "--bundled-header":
 352                                 bundled_header = true;
 353                                 break;
 354                         default:
 355                                 sources.Add (args [i]);
 356                                 break;
 357                         }
 358
 359                 }
 360                 // Modern bundling starts here
 361                 if (!custom_mode){
 362                         if (runtime != null){
 363                                 // Nothing to do here, the user has chosen to manually specify --runtime nad libraries
 364                         } else if (sdk_path != null) {
 365                                 VerifySdk (sdk_path);
 366                         } else if (cross_target == "default" || cross_target == null){
 367                                 sdk_path = Path.GetFullPath (Path.Combine (Process.GetCurrentProcess().MainModule.FileName, "..", ".."));
 368                                 VerifySdk (sdk_path);
 369                         } else {
 370                                 sdk_path = Path.Combine (targets_dir, cross_target);
 371                                 Console.WriteLine ("From: " + sdk_path);
 372                                 VerifySdk (sdk_path);
 373                         }
 374                 }
 375
 376                 if (fetch_target != null){
 377                         var directory = Path.Combine (targets_dir, fetch_target);
 378                         var zip_download = Path.Combine (directory, "sdk.zip");
 379                         Directory.CreateDirectory (directory);
 380                         var wc = new WebClient ();
 381                         var uri = new Uri ($"{target_server}{fetch_target}");
 382                         try {
 383                                 if (!quiet){
 384                                         Console.WriteLine ($"Downloading runtime {uri} to {zip_download}");
 385                                 }
 386
 387                                 wc.DownloadFile (uri, zip_download);
 388                                 ZipFile.ExtractToDirectory(zip_download, directory);
 389                                 File.Delete (zip_download);
 390                         } catch {
 391                                 Console.Error.WriteLine ($"Failure to download the specified runtime from {uri}");
 392                                 File.Delete (zip_download);
 393                                 return 1;
 394                         }
 395                         return 0;
 396                 }
 397
 398                 if (!quiet) {
 399                         Console.WriteLine (os_message);
 400                         Console.WriteLine ("Sources: {0} Auto-dependencies: {1}", sources.Count, autodeps);
 401                 }
 402
 403                 if (sources.Count == 0 || output == null) {
 404                         Help ();
 405                         Environment.Exit (1);
 406                 }
 407
 408                 List<string> assemblies = LoadAssemblies (sources);
 409                 LoadLocalizedAssemblies (assemblies);
 410                 List<string> files = new List<string> ();
 411                 foreach (string file in assemblies)
 412                         if (!QueueAssembly (files, file))
 413                                 return 1;
 414                 if (custom_mode)
 415                         GenerateBundles (files);
 416                 else
 417                         GeneratePackage (files);
 418
 419                 Console.WriteLine ("Generated {0}", output);
 420
 421                 return 0;
 422         }
 423
 424         static void VerifySdk (string path)
 425         {
 426                 if (!Directory.Exists (path))
 427                         Error ($"The specified SDK path does not exist: {path}");
 428                 runtime = Path.Combine (sdk_path, "bin", "mono");
 429                 if (!File.Exists (runtime))
 430                         Error ($"The SDK location does not contain a {path}/bin/mono runtime");
 431                 lib_path = Path.Combine (path, "lib", "mono", "4.5");
 432                 if (!Directory.Exists (lib_path))
 433                         Error ($"The SDK location does not contain a {path}/lib/mono/4.5 directory");
 434                 link_paths.Add (lib_path);
 435         }
 436
 437         static string targets_dir = Path.Combine (Environment.GetFolderPath (Environment.SpecialFolder.Personal), ".mono", "targets");
 438
 439         static void CommandLocalTargets ()
 440         {
 441                 string [] targets;
 442
 443                 Console.WriteLine ("Available targets locally:");
 444                 Console.WriteLine ("\tdefault\t- Current System Mono");
 445                 try {
 446                         targets = Directory.GetDirectories (targets_dir);
 447                 } catch {
 448                         return;
 449                 }
 450                 foreach (var target in targets){
 451                         var p = Path.Combine (target, "bin", "mono");
 452                         if (File.Exists (p))
 453                                 Console.WriteLine ("\t{0}", Path.GetFileName (target));
 454                 }
 455         }
 456
 457         static void WriteSymbol (StreamWriter sw, string name, long size)
 458         {
 459                 switch (style){
 460                 case "linux":
 461                         sw.WriteLine (
 462                                 ".globl {0}\n" +
 463                                 "\t.section .rodata\n" +
 464                                 "\t.p2align 5\n" +
 465                                 "\t.type {0}, \"object\"\n" +
 466                                 "\t.size {0}, {1}\n" +
 467                                 "{0}:\n",
 468                                 name, size);
 469                         break;
 470                 case "osx":
 471                         sw.WriteLine (
 472                                 "\t.section __TEXT,__text,regular,pure_instructions\n" +
 473                                 "\t.globl _{0}\n" +
 474                                 "\t.data\n" +
 475                                 "\t.align 4\n" +
 476                                 "_{0}:\n",
 477                                 name, size);
 478                         break;
 479                 case "windows":
 480                         sw.WriteLine (
 481                                 ".globl _{0}\n" +
 482                                 "\t.section .rdata,\"dr\"\n" +
 483                                 "\t.align 32\n" +
 484                                 "_{0}:\n",
 485                                 name, size);
 486                         break;
 487                 }
 488         }
 489
 490         static string [] chars = new string [256];
 491
 492         static void WriteBuffer (StreamWriter ts, Stream stream, byte[] buffer)
 493         {
 494                 int n;
 495
 496                 // Preallocate the strings we need.
 497                 if (chars [0] == null) {
 498                         for (int i = 0; i < chars.Length; i++)
 499                                 chars [i] = string.Format ("{0}", i.ToString ());
 500                 }
 501
 502                 while ((n = stream.Read (buffer, 0, buffer.Length)) != 0) {
 503                         int count = 0;
 504                         for (int i = 0; i < n; i++) {
 505                                 if (count % 32 == 0) {
 506                                         ts.Write ("\n\t.byte ");
 507                                 } else {
 508                                         ts.Write (",");
 509                                 }
 510                                 ts.Write (chars [buffer [i]]);
 511                                 count ++;
 512                         }
 513                 }
 514
 515                 ts.WriteLine ();
 516         }
 517
 518         class PackageMaker {
 519                 Dictionary<string, Tuple<long,int>> locations = new Dictionary<string, Tuple<long,int>> ();
 520                 const int align = 4096;
 521                 Stream package;
 522
 523                 public PackageMaker (string output)
 524                 {
 525                         package = File.Create (output, 128*1024);
 526                         if (IsUnix){
 527                                 File.SetAttributes (output, unchecked ((FileAttributes) 0x80000000));
 528                         }
 529                 }
 530
 531                 public int AddFile (string fname)
 532                 {
 533                         using (Stream fileStream = File.OpenRead (fname)){
 534                                 var ret = fileStream.Length;
 535
 536                                 if (!quiet)
 537                                         Console.WriteLine ("At {0:x} with input {1}", package.Position, fileStream.Length);
 538                                 fileStream.CopyTo (package);
 539                                 package.Position = package.Position + (align - (package.Position % align));
 540
 541                                 return (int) ret;
 542                         }
 543                 }
 544
 545                 public void Add (string entry, string fname)
 546                 {
 547                         var p = package.Position;
 548                         var size = AddFile (fname);
 549
 550                         locations [entry] = Tuple.Create(p, size);
 551                 }
 552
 553                 public void AddString (string entry, string text)
 554                 {
 555                         var bytes = Encoding.UTF8.GetBytes (text);
 556                         locations [entry] = Tuple.Create (package.Position, bytes.Length);
 557                         package.Write (bytes, 0, bytes.Length);
 558                         package.Position = package.Position + (align - (package.Position % align));
 559                 }
 560
 561                 public void AddStringPair (string entry, string key, string value)
 562                 {
 563                         var kbytes = Encoding.UTF8.GetBytes (key);
 564                         var vbytes = Encoding.UTF8.GetBytes (value);
 565
 566                         Console.WriteLine ("ADDING {0} to {1}", key, value);
 567                         if (kbytes.Length > 255){
 568                                 Console.WriteLine ("The key value can not exceed 255 characters: " + key);
 569                                 Environment.Exit (1);
 570                         }
 571
 572                         locations [entry] = Tuple.Create (package.Position, kbytes.Length+vbytes.Length+3);
 573                         package.WriteByte ((byte)kbytes.Length);
 574                         package.Write (kbytes, 0, kbytes.Length);
 575                         package.WriteByte (0);
 576                         package.Write (vbytes, 0, vbytes.Length);
 577                         package.WriteByte (0);
 578                         package.Position = package.Position + (align - (package.Position % align));
 579                 }
 580
 581                 public void Dump ()
 582                 {
 583                         if (quiet)
 584                                 return;
 585                         foreach (var floc in locations.Keys){
 586                                 Console.WriteLine ($"{floc} at {locations[floc]:x}");
 587                         }
 588                 }
 589
 590                 public void WriteIndex ()
 591                 {
 592                         var indexStart = package.Position;
 593                         var binary = new BinaryWriter (package);
 594
 595                         binary.Write (locations.Count);
 596                         foreach (var entry in from entry in locations orderby entry.Value.Item1 ascending select entry){
 597                                 var bytes = Encoding.UTF8.GetBytes (entry.Key);
 598                                 binary.Write (bytes.Length+1);
 599                                 binary.Write (bytes);
 600                                 binary.Write ((byte) 0);
 601                                 binary.Write (entry.Value.Item1);
 602                                 binary.Write (entry.Value.Item2);
 603                         }
 604                         binary.Write (indexStart);
 605                         binary.Write (Encoding.UTF8.GetBytes ("xmonkeysloveplay"));
 606                         binary.Flush ();
 607                 }
 608
 609                 public void Close ()
 610                 {
 611                         WriteIndex ();
 612                         package.Close ();
 613                         package = null;
 614                 }
 615         }
 616
 617         static bool MaybeAddFile (PackageMaker maker, string code, string file)
 618         {
 619                 if (file == null)
 620                         return true;
 621
 622                 if (!File.Exists (file)){
 623                         Error ("The file {0} does not exist", file);
 624                         return false;
 625                 }
 626                 maker.Add (code, file);
 627                 // add a space after code (="systemconfig:" or "machineconfig:")
 628                 Console.WriteLine (code + " " + file);
 629                 return true;
 630         }
 631
 632         static bool GeneratePackage (List<string> files)
 633         {
 634                 if (runtime == null){
 635                         if (IsUnix)
 636                                 runtime = Process.GetCurrentProcess().MainModule.FileName;
 637                         else {
 638                                 Error ("You must specify at least one runtime with --runtime or --cross");
 639                                 Environment.Exit (1);
 640                         }
 641                 }
 642                 if (!File.Exists (runtime)){
 643                         Error ($"The specified runtime at {runtime} does not exist");
 644                         Environment.Exit (1);
 645                 }
 646
 647                 if (ctor_func != null){
 648                         Error ("--static-ctor not supported with package bundling, you must use native compilation for this");
 649                         return false;
 650                 }
 651
 652                 var maker = new PackageMaker (output);
 653                 Console.WriteLine ("Using runtime: " + runtime);
 654                 maker.AddFile (runtime);
 655
 656                 foreach (var url in files){
 657                         string fname = LocateFile (new Uri (url).LocalPath);
 658                         string aname = MakeBundle.GetAssemblyName (fname);
 659
 660                         maker.Add ("assembly:" + aname, fname);
 661                         Console.WriteLine ("     Assembly: " + fname);
 662                         if (File.Exists (fname + ".config")){
 663                                 maker.Add ("config:" + aname, fname + ".config");
 664                                 Console.WriteLine ("       Config: " + fname + ".config");
 665                         }
 666                 }
 667
 668                 if (!MaybeAddFile (maker, "systemconfig:", config_file) || !MaybeAddFile (maker, "machineconfig:", machine_config_file))
 669                         return false;
 670
 671                 if (config_dir != null){
 672                         maker.Add ("config_dir:", config_dir);
 673                         Console.WriteLine ("   Config_dir: " + config_dir );
 674                 }
 675                 if (embedded_options != null)
 676                         maker.AddString ("options:", embedded_options);
 677                 if (environment.Count > 0){
 678                         foreach (var key in environment.Keys)
 679                                 maker.AddStringPair ("env:" + key, key, environment [key]);
 680                 }
 681                 if (libraries.Count > 0){
 682                         foreach (var alias_and_path in libraries){
 683                                 Console.WriteLine ("     Library:  " + alias_and_path.Value);
 684                                 maker.Add ("library:" + alias_and_path.Key, alias_and_path.Value);
 685                         }
 686                 }
 687                 maker.Dump ();
 688                 maker.Close ();
 689                 return true;
 690         }
 691
 692         static void GenerateBundles (List<string> files)
 693         {
 694                 string temp_s = "temp.s"; // Path.GetTempFileName ();
 695                 string temp_c = "temp.c";
 696                 string temp_o = "temp.o";
 697
 698                 if (compile_only)
 699                         temp_c = output;
 700                 if (object_out != null)
 701                         temp_o = object_out;
 702
 703                 try {
 704                         List<string> c_bundle_names = new List<string> ();
 705                         List<string[]> config_names = new List<string[]> ();
 706
 707                         using (StreamWriter ts = new StreamWriter (File.Create (temp_s))) {
 708                         using (StreamWriter tc = new StreamWriter (File.Create (temp_c))) {
 709                         string prog = null;
 710
 711                         if (bundled_header) {
 712                                 tc.WriteLine ("/* This source code was produced by mkbundle, do not edit */");
 713                                 tc.WriteLine ("\n#ifndef NULL\n#define NULL (void *)0\n#endif");
 714                                 tc.WriteLine (@"
 715 typedef struct {
 716         const char *name;
 717         const unsigned char *data;
 718         const unsigned int size;
 719 } MonoBundledAssembly;
 720 void          mono_register_bundled_assemblies (const MonoBundledAssembly **assemblies);
 721 void          mono_register_config_for_assembly (const char* assembly_name, const char* config_xml);
 722 ");
 723                         } else {
 724                                 tc.WriteLine ("#include <mono/metadata/mono-config.h>");
 725                                 tc.WriteLine ("#include <mono/metadata/assembly.h>\n");
 726                         }
 727
 728                         if (compress) {
 729                                 tc.WriteLine ("typedef struct _compressed_data {");
 730                                 tc.WriteLine ("\tMonoBundledAssembly assembly;");
 731                                 tc.WriteLine ("\tint compressed_size;");
 732                                 tc.WriteLine ("} CompressedAssembly;\n");
 733                         }
 734
 735                         object monitor = new object ();
 736
 737                         var streams = new Dictionary<string, Stream> ();
 738                         var sizes = new Dictionary<string, long> ();
 739
 740                         // Do the file reading and compression in parallel
 741                         Action<string> body = delegate (string url) {
 742                                 string fname = LocateFile (new Uri (url).LocalPath);
 743                                 Stream stream = File.OpenRead (fname);
 744
 745                                 long real_size = stream.Length;
 746                                 int n;
 747                                 if (compress) {
 748                                         byte[] cbuffer = new byte [8192];
 749                                         MemoryStream ms = new MemoryStream ();
 750                                         GZipStream deflate = new GZipStream (ms, CompressionMode.Compress, leaveOpen:true);
 751                                         while ((n = stream.Read (cbuffer, 0, cbuffer.Length)) != 0){
 752                                                 deflate.Write (cbuffer, 0, n);
 753                                         }
 754                                         stream.Close ();
 755                                         deflate.Close ();
 756                                         byte [] bytes = ms.GetBuffer ();
 757                                         stream = new MemoryStream (bytes, 0, (int) ms.Length, false, false);
 758                                 }
 759
 760                                 lock (monitor) {
 761                                         streams [url] = stream;
 762                                         sizes [url] = real_size;
 763                                 }
 764                         };
 765
 766                         //#if NET_4_5
 767 #if FALSE
 768                         Parallel.ForEach (files, body);
 769 #else
 770                         foreach (var url in files)
 771                                 body (url);
 772 #endif
 773
 774                         // The non-parallel part
 775                         byte [] buffer = new byte [8192];
 776                         // everything other than a-zA-Z0-9_ needs to be escaped in asm symbols.
 777                         var symbolEscapeRE = new System.Text.RegularExpressions.Regex ("[^\\w_]");
 778                         foreach (var url in files) {
 779                                 string fname = LocateFile (new Uri (url).LocalPath);
 780                                 string aname = MakeBundle.GetAssemblyName (fname);
 781                                 string encoded = symbolEscapeRE.Replace (aname, "_");
 782
 783                                 if (prog == null)
 784                                         prog = aname;
 785
 786                                 var stream = streams [url];
 787                                 var real_size = sizes [url];
 788
 789                                 if (!quiet)
 790                                         Console.WriteLine ("   embedding: " + fname);
 791
 792                                 WriteSymbol (ts, "assembly_data_" + encoded, stream.Length);
 793
 794                                 WriteBuffer (ts, stream, buffer);
 795
 796                                 if (compress) {
 797                                         tc.WriteLine ("extern const unsigned char assembly_data_{0} [];", encoded);
 798                                         tc.WriteLine ("static CompressedAssembly assembly_bundle_{0} = {{{{\"{1}\"," +
 799                                                                   " assembly_data_{0}, {2}}}, {3}}};",
 800                                                                   encoded, aname, real_size, stream.Length);
 801                                         if (!quiet) {
 802                                                 double ratio = ((double) stream.Length * 100) / real_size;
 803                                                 Console.WriteLine ("   compression ratio: {0:.00}%", ratio);
 804                                         }
 805                                 } else {
 806                                         tc.WriteLine ("extern const unsigned char assembly_data_{0} [];", encoded);
 807                                         tc.WriteLine ("static const MonoBundledAssembly assembly_bundle_{0} = {{\"{1}\", assembly_data_{0}, {2}}};",
 808                                                                   encoded, aname, real_size);
 809                                 }
 810                                 stream.Close ();
 811
 812                                 c_bundle_names.Add ("assembly_bundle_" + encoded);
 813
 814                                 try {
 815                                         FileStream cf = File.OpenRead (fname + ".config");
 816                                         if (!quiet)
 817                                                 Console.WriteLine (" config from: " + fname + ".config");
 818                                         tc.WriteLine ("extern const unsigned char assembly_config_{0} [];", encoded);
 819                                         WriteSymbol (ts, "assembly_config_" + encoded, cf.Length);
 820                                         WriteBuffer (ts, cf, buffer);
 821                                         ts.WriteLine ();
 822                                         config_names.Add (new string[] {aname, encoded});
 823                                 } catch (FileNotFoundException) {
 824                                         /* we ignore if the config file doesn't exist */
 825                                 }
 826                         }
 827
 828                         if (config_file != null){
 829                                 FileStream conf;
 830                                 try {
 831                                         conf = File.OpenRead (config_file);
 832                                 } catch {
 833                                         Error ("Failure to open {0}", config_file);
 834                                         return;
 835                                 }
 836                                 if (!quiet)
 837                                         Console.WriteLine ("System config from: " + config_file);
 838                                 tc.WriteLine ("extern const char system_config;");
 839                                 WriteSymbol (ts, "system_config", config_file.Length);
 840
 841                                 WriteBuffer (ts, conf, buffer);
 842                                 // null terminator
 843                                 ts.Write ("\t.byte 0\n");
 844                                 ts.WriteLine ();
 845                         }
 846
 847                         if (machine_config_file != null){
 848                                 FileStream conf;
 849                                 try {
 850                                         conf = File.OpenRead (machine_config_file);
 851                                 } catch {
 852                                         Error ("Failure to open {0}", machine_config_file);
 853                                         return;
 854                                 }
 855                                 if (!quiet)
 856                                         Console.WriteLine ("Machine config from: " + machine_config_file);
 857                                 tc.WriteLine ("extern const char machine_config;");
 858                                 WriteSymbol (ts, "machine_config", machine_config_file.Length);
 859
 860                                 WriteBuffer (ts, conf, buffer);
 861                                 ts.Write ("\t.byte 0\n");
 862                                 ts.WriteLine ();
 863                         }
 864                         ts.Close ();
 865
 866                         if (compress)
 867                                 tc.WriteLine ("\nstatic const CompressedAssembly *compressed [] = {");
 868                         else
 869                                 tc.WriteLine ("\nstatic const MonoBundledAssembly *bundled [] = {");
 870
 871                         foreach (string c in c_bundle_names){
 872                                 tc.WriteLine ("\t&{0},", c);
 873                         }
 874                         tc.WriteLine ("\tNULL\n};\n");
 875                         tc.WriteLine ("static char *image_name = \"{0}\";", prog);
 876
 877                         if (ctor_func != null) {
 878                                 tc.WriteLine ("\nextern void {0} (void);", ctor_func);
 879                                 tc.WriteLine ("\n__attribute__ ((constructor)) static void mono_mkbundle_ctor (void)");
 880                                 tc.WriteLine ("{{\n\t{0} ();\n}}", ctor_func);
 881                         }
 882
 883                         tc.WriteLine ("\nstatic void install_dll_config_files (void) {\n");
 884                         foreach (string[] ass in config_names){
 885                                 tc.WriteLine ("\tmono_register_config_for_assembly (\"{0}\", assembly_config_{1});\n", ass [0], ass [1]);
 886                         }
 887                         if (config_file != null)
 888                                 tc.WriteLine ("\tmono_config_parse_memory (&system_config);\n");
 889                         if (machine_config_file != null)
 890                                 tc.WriteLine ("\tmono_register_machine_config (&machine_config);\n");
 891                         tc.WriteLine ("}\n");
 892
 893                         if (config_dir != null)
 894                                 tc.WriteLine ("static const char *config_dir = \"{0}\";", config_dir);
 895                         else
 896                                 tc.WriteLine ("static const char *config_dir = NULL;");
 897
 898                         Stream template_stream;
 899                         if (compress) {
 900                                 template_stream = System.Reflection.Assembly.GetAssembly (typeof(MakeBundle)).GetManifestResourceStream ("template_z.c");
 901                         } else {
 902                                 template_stream = System.Reflection.Assembly.GetAssembly (typeof(MakeBundle)).GetManifestResourceStream ("template.c");
 903                         }
 904
 905                         StreamReader s = new StreamReader (template_stream);
 906                         string template = s.ReadToEnd ();
 907                         tc.Write (template);
 908
 909                         if (!nomain && custom_main == null) {
 910                                 Stream template_main_stream = System.Reflection.Assembly.GetAssembly (typeof(MakeBundle)).GetManifestResourceStream ("template_main.c");
 911                                 StreamReader st = new StreamReader (template_main_stream);
 912                                 string maintemplate = st.ReadToEnd ();
 913                                 tc.Write (maintemplate);
 914                         }
 915
 916                         tc.Close ();
 917
 918                         string assembler = GetEnv("AS", "as");
 919                         string as_cmd = String.Format("{0} -o {1} {2} ", assembler, temp_o, temp_s);
 920                         Execute(as_cmd);
 921
 922                         if (compile_only)
 923                                 return;
 924
 925                         if (!quiet)
 926                                 Console.WriteLine("Compiling:");
 927
 928                         if (style == "windows")
 929                         {
 930
 931                                 Func<string, string> quote = (pp) => { return "\"" + pp + "\""; };
 932
 933                                 string compiler = GetEnv("CC", "cl.exe");
 934                                 string winsdkPath = GetEnv("WINSDK", @"C:\Program Files (x86)\Windows Kits\8.1");
 935                                 string vsPath = GetEnv("VSINCLUDE", @"C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC");
 936                                 string monoPath = GetEnv("MONOPREFIX", @"C:\Program Files (x86)\Mono");
 937
 938                                 string[] includes = new string[] {winsdkPath + @"\Include\um", winsdkPath + @"\Include\shared", vsPath + @"\include", monoPath + @"\include\mono-2.0", "." };
 939                                 // string[] libs = new string[] { winsdkPath + @"\Lib\winv6.3\um\x86" , vsPath + @"\lib" };
 940                                 var linkLibraries = new string[] {  "kernel32.lib",
 941                                                                                                 "version.lib",
 942                                                                                                 "Ws2_32.lib",
 943                                                                                                 "Mswsock.lib",
 944                                                                                                 "Psapi.lib",
 945                                                                                                 "shell32.lib",
 946                                                                                                 "OleAut32.lib",
 947                                                                                                 "ole32.lib",
 948                                                                                                 "winmm.lib",
 949                                                                                                 "user32.lib",
 950                                                                                                 "libvcruntime.lib",
 951                                                                                                 "advapi32.lib",
 952                                                                                                 "OLDNAMES.lib",
 953                                                                                                 "libucrt.lib" };
 954
 955                                 string glue_obj = "mkbundle_glue.obj";
 956                                 string monoLib;
 957
 958                                 if (static_link)
 959                                         monoLib = LocateFile (monoPath + @"\lib\monosgen-2.0-static.lib");
 960
 961                                 else {
 962                                         Console.WriteLine ("WARNING: Dynamically linking the Mono runtime on Windows is not a tested option.");
 963                                         monoLib = LocateFile (monoPath + @"\lib\monosgen-2.0.lib");
 964                                         LocateFile (monoPath + @"\lib\monosgen-2.0.dll"); // in this case, the .lib is just the import library, and the .dll is also needed
 965                                 }
 966
 967                                 var compilerArgs = new List<string>();
 968                                 compilerArgs.Add("/MT");
 969
 970                                 foreach (string include in includes)
 971                                         compilerArgs.Add(String.Format ("/I {0}", quote (include)));
 972
 973                                 if (!nomain || custom_main != null) {
 974                                         compilerArgs.Add(quote(temp_c));
 975                                         compilerArgs.Add(quote(temp_o));
 976                                         if (custom_main != null)
 977                                                 compilerArgs.Add(quote(custom_main));
 978                                         compilerArgs.Add(quote(monoLib));
 979                                         compilerArgs.Add("/link");
 980                                         compilerArgs.Add("/NODEFAULTLIB");
 981                                         compilerArgs.Add("/SUBSYSTEM:windows");
 982                                         compilerArgs.Add("/ENTRY:mainCRTStartup");
 983                                         compilerArgs.AddRange(linkLibraries);
 984                                         compilerArgs.Add("/out:"+ output);
 985
 986                                         string cl_cmd = String.Format("{0} {1}", compiler, String.Join(" ", compilerArgs.ToArray()));
 987                                         Execute (cl_cmd);
 988                                 }
 989                                 else
 990                                 {
 991                                         // we are just creating a .lib
 992                                         compilerArgs.Add("/c"); // compile only
 993                                         compilerArgs.Add(temp_c);
 994                                         compilerArgs.Add(String.Format("/Fo" + glue_obj)); // .obj output name
 995
 996                                         string cl_cmd = String.Format("{0} {1}", compiler, String.Join(" ", compilerArgs.ToArray()));
 997                                         Execute (cl_cmd);
 998
 999                                         string librarian = GetEnv ("LIB", "lib.exe");
1000                                         var librarianArgs = new List<string> ();
1001                                         librarianArgs.Add (String.Format ("/out:{0}.lib" + output));
1002                                         librarianArgs.Add (temp_o);
1003                                         librarianArgs.Add (glue_obj);
1004                                         librarianArgs.Add (monoLib);
1005                                         string lib_cmd = String.Format("{0} {1}", librarian, String.Join(" ", librarianArgs.ToArray()));
1006                                         Execute (lib_cmd);
1007                                 }
1008                         }
1009                         else
1010                         {
1011                                 string zlib = (compress ? "-lz" : "");
1012                                 string objc = (style == "osx" ? "-framework CoreFoundation -lobjc" : "");
1013                                 string debugging = "-g";
1014                                 string cc = GetEnv("CC", "cc");
1015                                 string cmd = null;
1016
1017                                 if (style == "linux")
1018                                         debugging = "-ggdb";
1019                                 if (static_link)
1020                                 {
1021                                         string smonolib;
1022                                         if (style == "osx")
1023                                                 smonolib = "`pkg-config --variable=libdir mono-2`/libmono-2.0.a ";
1024                                         else
1025                                                 smonolib = "-Wl,-Bstatic -lmono-2.0 -Wl,-Bdynamic ";
1026                                         cmd = String.Format("{4} -o '{2}' -Wall {5} `pkg-config --cflags mono-2` {0} {3} " +
1027                                                 "`pkg-config --libs-only-L mono-2` " + smonolib +
1028                                                 "`pkg-config --libs-only-l mono-2 | sed -e \"s/\\-lmono-2.0 //\"` {1}",
1029                                                 temp_c, temp_o, output, zlib, cc, objc);
1030                                 }
1031                                 else
1032                                 {
1033
1034                                         cmd = String.Format("{4} " + debugging + " -o '{2}' -Wall {5} {0} `pkg-config --cflags --libs mono-2` {3} {1}",
1035                                                 temp_c, temp_o, output, zlib, cc, objc);
1036                                 }
1037                                 Execute (cmd);
1038                         }
1039
1040                         if (!quiet)
1041                                 Console.WriteLine ("Done");
1042                 }
1043         }
1044                 } finally {
1045                         if (!keeptemp){
1046                                 if (object_out == null){
1047                                         File.Delete (temp_o);
1048                                 }
1049                                 if (!compile_only){
1050                                         File.Delete (temp_c);
1051                                 }
1052                                 File.Delete (temp_s);
1053                         }
1054                 }
1055         }
1056
1057         static List<string> LoadAssemblies (List<string> sources)
1058         {
1059                 List<string> assemblies = new List<string> ();
1060                 bool error = false;
1061
1062                 foreach (string name in sources){
1063                         try {
1064                                 Assembly a = LoadAssemblyFile (name);
1065
1066                                 if (a == null){
1067                                         error = true;
1068                                         continue;
1069                                 }
1070
1071                                 assemblies.Add (a.CodeBase);
1072                         } catch (Exception) {
1073                                 if (skip_scan) {
1074                                         if (!quiet)
1075                                                 Console.WriteLine ("File will not be scanned: {0}", name);
1076                                         assemblies.Add (new Uri (new FileInfo (name).FullName).ToString ());
1077                                 } else {
1078                                         throw;
1079                                 }
1080                         }
1081                 }
1082
1083                 if (error) {
1084                         Error ("Couldn't load one or more of the assemblies.");
1085                         Environment.Exit (1);
1086                 }
1087
1088                 return assemblies;
1089         }
1090
1091         static void LoadLocalizedAssemblies (List<string> assemblies)
1092         {
1093                 var other = i18n.Select (x => "I18N." + x + (x.Length > 0 ? "." : "") + "dll");
1094                 string error = null;
1095
1096                 foreach (string name in other) {
1097                         try {
1098                                 Assembly a = LoadAssembly (name);
1099
1100                                 if (a == null) {
1101                                         error = "Failed to load " + name;
1102                                         continue;
1103                                 }
1104
1105                                 assemblies.Add (a.CodeBase);
1106                         } catch (Exception) {
1107                                 if (skip_scan) {
1108                                         if (!quiet)
1109                                                 Console.WriteLine ("File will not be scanned: {0}", name);
1110                                         assemblies.Add (new Uri (new FileInfo (name).FullName).ToString ());
1111                                 } else {
1112                                         throw;
1113                                 }
1114                         }
1115                 }
1116
1117                 if (error != null) {
1118                         Console.Error.WriteLine ("Failure to load i18n assemblies, the following directories were searched for the assemblies:");
1119                         foreach (var path in link_paths){
1120                                 Console.Error.WriteLine ("   Path: " + path);
1121                         }
1122                         if (custom_mode){
1123                                 Console.WriteLine ("In Custom mode, you need to provide the directory to lookup assemblies from using -L");
1124                         }
1125
1126                         Error ("Couldn't load one or more of the i18n assemblies: " + error);
1127                         Environment.Exit (1);
1128                 }
1129         }
1130
1131
1132         static readonly Universe universe = new Universe ();
1133         static readonly Dictionary<string, string> loaded_assemblies = new Dictionary<string, string> ();
1134
1135         public static string GetAssemblyName (string path)
1136         {
1137                 string resourcePathSeparator = style == "windows" ? "\\\\" : "/";
1138                 string name = Path.GetFileName (path);
1139
1140                 // A bit of a hack to support satellite assemblies. They all share the same name but
1141                 // are placed in subdirectories named after the locale they implement. Also, all of
1142                 // them end in .resources.dll, therefore we can use that to detect the circumstances.
1143                 if (name.EndsWith (".resources.dll", StringComparison.OrdinalIgnoreCase)) {
1144                         string dir = Path.GetDirectoryName (path);
1145                         int idx = dir.LastIndexOf (Path.DirectorySeparatorChar);
1146                         if (idx >= 0) {
1147                                 name = dir.Substring (idx + 1) + resourcePathSeparator + name;
1148                                 Console.WriteLine ($"Storing satellite assembly '{path}' with name '{name}'");
1149                         } else if (!quiet)
1150                                 Console.WriteLine ($"Warning: satellite assembly {path} doesn't have locale path prefix, name conflicts possible");
1151                 }
1152
1153                 return name;
1154         }
1155
1156         static bool QueueAssembly (List<string> files, string codebase)
1157         {
1158                 //Console.WriteLine ("CODE BASE IS {0}", codebase);
1159                 if (files.Contains (codebase))
1160                         return true;
1161
1162                 var path = new Uri(codebase).LocalPath;
1163                 var name = GetAssemblyName (path);
1164                 string found;
1165                 if (loaded_assemblies.TryGetValue (name, out found)) {
1166                         Error ("Duplicate assembly name `{0}'. Both `{1}' and `{2}' use same assembly name.", name, path, found);
1167                         return false;
1168                 }
1169
1170                 loaded_assemblies.Add (name, path);
1171
1172                 files.Add (codebase);
1173                 if (!autodeps)
1174                         return true;
1175                 try {
1176                         Assembly a = universe.LoadFile (path);
1177                         if (a == null) {
1178                                 Error ("Unable to to load assembly `{0}'", path);
1179                                 return false;
1180                         }
1181
1182                         foreach (AssemblyName an in a.GetReferencedAssemblies ()) {
1183                                 a = LoadAssembly (an.Name);
1184                                 if (a == null) {
1185                                         Error ("Unable to load assembly `{0}' referenced by `{1}'", an.Name, path);
1186                                         return false;
1187                                 }
1188
1189                                 if (!QueueAssembly (files, a.CodeBase))
1190                                         return false;
1191                         }
1192                 } catch (Exception) {
1193                         if (!skip_scan)
1194                                 throw;
1195                 }
1196
1197                 return true;
1198         }
1199
1200         //
1201         // Loads an assembly from a specific path
1202         //
1203         static Assembly LoadAssemblyFile (string assembly)
1204         {
1205                 Assembly a = null;
1206
1207                 try {
1208                         if (!quiet)
1209                                 Console.WriteLine ("Attempting to load assembly: {0}", assembly);
1210                         a = universe.LoadFile (assembly);
1211                         if (!quiet)
1212                                 Console.WriteLine ("Assembly {0} loaded successfully.", assembly);
1213
1214                 } catch (FileNotFoundException){
1215                         Error ($"Cannot find assembly `{assembly}'");
1216                 } catch (IKVM.Reflection.BadImageFormatException f) {
1217                         if (skip_scan)
1218                                 throw;
1219                         Error ($"Cannot load assembly (bad file format) " + f.Message);
1220                 } catch (FileLoadException f){
1221                         Error ($"Cannot load assembly " + f.Message);
1222                 } catch (ArgumentNullException){
1223                         Error( $"Cannot load assembly (null argument)");
1224                 }
1225                 return a;
1226         }
1227
1228         //
1229         // Loads an assembly from any of the link directories provided
1230         //
1231         static Assembly LoadAssembly (string assembly)
1232         {
1233                 string total_log = "";
1234                 foreach (string dir in link_paths){
1235                         string full_path = Path.Combine (dir, assembly);
1236                         if (!quiet)
1237                                 Console.WriteLine ("Attempting to load assembly from: " + full_path);
1238                         if (!assembly.EndsWith (".dll") && !assembly.EndsWith (".exe"))
1239                                 full_path += ".dll";
1240
1241                         try {
1242                                 var a = universe.LoadFile (full_path);
1243                                 return a;
1244                         } catch (FileNotFoundException ff) {
1245                                 total_log += ff.FusionLog;
1246                                 continue;
1247                         }
1248                 }
1249                 if (!quiet)
1250                         Console.WriteLine ("Log: \n" + total_log);
1251                 return null;
1252         }
1253
1254         static void Error (string msg, params object [] args)
1255         {
1256                 Console.Error.WriteLine ("ERROR: {0}", string.Format (msg, args));
1257                 Environment.Exit (1);
1258         }
1259
1260         static void Help ()
1261         {
1262                 Console.WriteLine ("Usage is: mkbundle [options] assembly1 [assembly2...]\n\n" +
1263                                    "Options:\n" +
1264                                    "    --config F           Bundle system config file `F'\n" +
1265                                    "    --config-dir D       Set MONO_CFG_DIR to `D'\n" +
1266                                    "    --deps               Turns on automatic dependency embedding (default on simple)\n" +
1267                                    "    -L path              Adds `path' to the search path for assemblies\n" +
1268                                    "    --machine-config F   Use the given file as the machine.config for the application.\n" +
1269                                    "    -o out               Specifies output filename\n" +
1270                                    "    --nodeps             Turns off automatic dependency embedding (default on custom)\n" +
1271                                    "    --skip-scan          Skip scanning assemblies that could not be loaded (but still embed them).\n" +
1272                                    "    --i18n ENCODING      none, all or comma separated list of CJK, MidWest, Other, Rare, West.\n" +
1273                                    "    -v                   Verbose output\n" +
1274                                    "    --bundled-header     Do not attempt to include 'mono-config.h'. Define the entry points directly in the generated code\n" +
1275                                    "\n" +
1276                                    "--simple   Simple mode does not require a C toolchain and can cross compile\n" +
1277                                    "    --cross TARGET       Generates a binary for the given TARGET\n"+
1278                                    "    --env KEY=VALUE      Hardcodes an environment variable for the target\n" +
1279                                    "    --fetch-target NAME  Downloads the target SDK from the remote server\n" +
1280                                    "    --library [LIB,]PATH Bundles the specified dynamic library to be used at runtime\n" +
1281                                    "                         LIB is optional shortname for file located at PATH\n" +
1282                                    "    --list-targets       Lists available targets on the remote server\n" +
1283                                    "    --local-targets      Lists locally available targets\n" +
1284                                    "    --options OPTIONS    Embed the specified Mono command line options on target\n" +
1285                                    "    --runtime RUNTIME    Manually specifies the Mono runtime to use\n" +
1286                                    "    --sdk PATH           Use a Mono SDK root location instead of a target\n" +
1287                                    "    --target-server URL  Specified a server to download targets from, default is " + target_server + "\n" +
1288                                    "\n" +
1289                                    "--custom   Builds a custom launcher, options for --custom\n" +
1290                                    "    -c                   Produce stub only, do not compile\n" +
1291                                    "    -oo obj              Specifies output filename for helper object file\n" +
1292                                    "    --dos2unix[=true|false]\n" +
1293                                    "                         When no value provided, or when `true` specified\n" +
1294                                    "                         `dos2unix` will be invoked to convert paths on Windows.\n" +
1295                                    "                         When `--dos2unix=false` used, dos2unix is NEVER used.\n" +
1296                                    "    --keeptemp           Keeps the temporary files\n" +
1297                                    "    --static             Statically link to mono libs\n" +
1298                                    "    --nomain             Don't include a main() function, for libraries\n" +
1299                                    "    --custom-main C      Link the specified compilation unit (.c or .obj) with entry point/init code\n" +
1300                                    "    -z                   Compress the assemblies before embedding.\n" +
1301                                    "    --static-ctor ctor   Add a constructor call to the supplied function.\n" +
1302                                    "                         You need zlib development headers and libraries.\n");
1303         }
1304
1305         [DllImport ("libc")]
1306         static extern int system (string s);
1307         [DllImport ("libc")]
1308         static extern int uname (IntPtr buf);
1309
1310         static void DetectOS ()
1311         {
1312                 if (!IsUnix) {
1313                         os_message = "OS is: Windows";
1314                         style = "windows";
1315                         return;
1316                 }
1317
1318                 IntPtr buf = Marshal.AllocHGlobal (8192);
1319                 if (uname (buf) != 0){
1320                         os_message = "Warning: Unable to detect OS";
1321                         Marshal.FreeHGlobal (buf);
1322                         return;
1323                 }
1324                 string os = Marshal.PtrToStringAnsi (buf);
1325                 os_message = "OS is: " + os;
1326                 if (os == "Darwin")
1327                         style = "osx";
1328
1329                 Marshal.FreeHGlobal (buf);
1330         }
1331
1332         static bool IsUnix {
1333                 get {
1334                         int p = (int) Environment.OSVersion.Platform;
1335                         return ((p == 4) || (p == 128) || (p == 6));
1336                 }
1337         }
1338
1339         static void Execute (string cmdLine)
1340         {
1341                 if (IsUnix) {
1342                         if (!quiet)
1343                                 Console.WriteLine ("[execute cmd]: " + cmdLine);
1344                         int ret = system (cmdLine);
1345                         if (ret != 0)
1346                         {
1347                                 Error(String.Format("[Fail] {0}", ret));
1348                         }
1349                         return;
1350                 }
1351
1352                 // on Windows, we have to pipe the output of a
1353                 // `cmd` interpolation to dos2unix, because the shell does not
1354                 // strip the CRLFs generated by the native pkg-config distributed
1355                 // with Mono.
1356                 //
1357                 // But if it's *not* on cygwin, just skip it.
1358
1359                 // check if dos2unix is applicable.
1360                 if (use_dos2unix == true)
1361                         try {
1362                         var info = new ProcessStartInfo ("dos2unix");
1363                         info.CreateNoWindow = true;
1364                         info.RedirectStandardInput = true;
1365                         info.UseShellExecute = false;
1366                         var dos2unix = Process.Start (info);
1367                         dos2unix.StandardInput.WriteLine ("aaa");
1368                         dos2unix.StandardInput.WriteLine ("\u0004");
1369                         dos2unix.StandardInput.Close ();
1370                         dos2unix.WaitForExit ();
1371                         if (dos2unix.ExitCode == 0)
1372                                 use_dos2unix = true;
1373                 } catch {
1374                         Console.WriteLine("Warning: dos2unix not found");
1375                         use_dos2unix = false;
1376                 }
1377
1378                 if (use_dos2unix == null)
1379                         use_dos2unix = false;
1380
1381                 ProcessStartInfo psi = new ProcessStartInfo();
1382                 psi.UseShellExecute = false;
1383
1384                 // if there is no dos2unix, just run cmd /c.
1385                 if (use_dos2unix == false)
1386                 {
1387                         psi.FileName = "cmd";
1388                         psi.Arguments = String.Format("/c \"{0}\"", cmdLine);
1389                 }
1390                 else
1391                 {
1392                         psi.FileName = "sh";
1393                         StringBuilder b = new StringBuilder();
1394                         int count = 0;
1395                         for (int i = 0; i < cmdLine.Length; i++)
1396                         {
1397                                 if (cmdLine[i] == '`')
1398                                 {
1399                                         if (count % 2 != 0)
1400                                         {
1401                                                 b.Append("|dos2unix");
1402                                         }
1403                                         count++;
1404                                 }
1405                                 b.Append(cmdLine[i]);
1406                         }
1407                         cmdLine = b.ToString();
1408                         psi.Arguments = String.Format("-c \"{0}\"", cmdLine);
1409                 }
1410
1411                 if (!quiet)
1412                         Console.WriteLine(cmdLine);
1413                 using (Process p = Process.Start (psi)) {
1414                         p.WaitForExit ();
1415                         int ret = p.ExitCode;
1416                         if (ret != 0){
1417                                 Error ("[Fail] {0}", ret);
1418                         }
1419                 }
1420         }
1421
1422         static string GetEnv(string name, string defaultValue)
1423         {
1424                 string val = Environment.GetEnvironmentVariable(name);
1425                 if (val != null)
1426                 {
1427                         if (!quiet)
1428                                 Console.WriteLine("{0} = {1}", name, val);
1429                 }
1430                 else
1431                 {
1432                         val = defaultValue;
1433                         if (!quiet)
1434                                 Console.WriteLine("{0} = {1} (default)", name, val);
1435                 }
1436                 return val;
1437         }
1438
1439         static string LocateFile(string default_path)
1440         {
1441                 var override_path = Path.Combine(Directory.GetCurrentDirectory(), Path.GetFileName(default_path));
1442                 if (File.Exists(override_path))
1443                         return override_path;
1444                 else if (File.Exists(default_path))
1445                         return default_path;
1446                 else
1447                         throw new FileNotFoundException(default_path);
1448         }
1449 }