tools/winegcc/winegcc.c

   1 /*
   2  * MinGW wrapper: makes gcc behave like MinGW.
   3  *
   4  * Copyright 2000 Manuel Novoa III
   5  * Copyright 2000 Francois Gouget
   6  * Copyright 2002 Dimitrie O. Paun
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  * DESCRIPTION
  23  *
  24  * all options for gcc start with '-' and are for the most part
  25  * single options (no parameters as separate argument).
  26  * There are of course exceptions to this rule, so here is an
  27  * exhaustive list of options that do take parameters (potentially)
  28  * as a separate argument:
  29  *
  30  * Compiler:
  31  * -x language
  32  * -o filename
  33  * -aux-info filename
  34  *
  35  * Preprocessor:
  36  * -D name
  37  * -U name
  38  * -I dir
  39  * -MF file
  40  * -MT target
  41  * -MQ target
  42  * (all -i.* arg)
  43  * -include file
  44  * -imacros file
  45  * -idirafter dir
  46  * -iwithprefix dir
  47  * -iwithprefixbefore dir
  48  * -isystem dir
  49  * -A predicate=answer
  50  *
  51  * Linking:
  52  * -l library
  53  * -Xlinker option
  54  * -u symbol
  55  *
  56  * Misc:
  57  * -b machine
  58  * -V version
  59  * -G num  (see NOTES below)
  60  *
  61  * NOTES
  62  * There is -G option for compatibility with System V that
  63  * takes no parameters. This makes "-G num" parsing ambiguous.
  64  * This option is synonymous to -shared, and as such we will
  65  * not support it for now.
  66  *
  67  * Special interest options
  68  *
  69  *      Assembler Option
  70  *          -Wa,option
  71  *
  72  *      Linker Options
  73  *          object-file-name  -llibrary -nostartfiles  -nodefaultlibs
  74  *          -nostdlib -s  -static  -static-libgcc  -shared  -shared-libgcc
  75  *          -symbolic -Wl,option  -Xlinker option -u symbol --image-base
  76  *
  77  *      Directory Options
  78  *          -Bprefix  -Idir  -I-  -Ldir  -specs=file
  79  *
  80  *      Target Options
  81  *          -b machine  -V version
  82  *
  83  * Please note that the Target Options are relevant to everything:
  84  *   compiler, linker, assembler, preprocessor.
  85  *
  86  */
  87
  88 #include "config.h"
  89 #include "wine/port.h"
  90
  91 #include <stdio.h>
  92 #include <stdlib.h>
  93 #include <signal.h>
  94 #include <stdarg.h>
  95 #include <string.h>
  96 #include <errno.h>
  97
  98 #include "utils.h"
  99
 100 static const char* app_loader_template =
 101     "#!/bin/sh\n"
 102     "\n"
 103     "appname=\"%s\"\n"
 104     "# determine the application directory\n"
 105     "appdir=''\n"
 106     "case \"$0\" in\n"
 107     "  */*)\n"
 108     "    # $0 contains a path, use it\n"
 109     "    appdir=`dirname \"$0\"`\n"
 110     "    ;;\n"
 111     "  *)\n"
 112     "    # no directory in $0, search in PATH\n"
 113     "    saved_ifs=$IFS\n"
 114     "    IFS=:\n"
 115     "    for d in $PATH\n"
 116     "    do\n"
 117     "      IFS=$saved_ifs\n"
 118     "      if [ -x \"$d/$appname\" ]; then appdir=\"$d\"; break; fi\n"
 119     "    done\n"
 120     "    ;;\n"
 121     "esac\n"
 122     "\n"
 123     "# figure out the full app path\n"
 124     "if [ -n \"$appdir\" ]; then\n"
 125     "    apppath=\"$appdir/$appname\"\n"
 126     "    WINEDLLPATH=\"$appdir:$WINEDLLPATH\"\n"
 127     "    export WINEDLLPATH\n"
 128     "else\n"
 129     "    apppath=\"$appname\"\n"
 130     "fi\n"
 131     "\n"
 132     "# determine the WINELOADER\n"
 133     "if [ ! -x \"$WINELOADER\" ]; then WINELOADER=\"wine\"; fi\n"
 134     "\n"
 135     "# and try to start the app\n"
 136     "exec \"$WINELOADER\" \"$apppath\" \"$@\"\n"
 137 ;
 138
 139 static int keep_generated = 0;
 140 static strarray* tmp_files;
 141 #ifdef HAVE_SIGSET_T
 142 static sigset_t signal_mask;
 143 #endif
 144
 145 enum processor { proc_cc, proc_cxx, proc_cpp, proc_as };
 146
 147 struct options
 148 {
 149     enum processor processor;
 150     int shared;
 151     int use_msvcrt;
 152     int nostdinc;
 153     int nostdlib;
 154     int nostartfiles;
 155     int nodefaultlibs;
 156     int noshortwchar;
 157     int gui_app;
 158     int unicode_app;
 159     int compile_only;
 160     int wine_mode;
 161     const char* output_name;
 162     const char* image_base;
 163     strarray* prefix;
 164     strarray* lib_dirs;
 165     strarray* linker_args;
 166     strarray* compiler_args;
 167     strarray* winebuild_args;
 168     strarray* files;
 169 };
 170
 171 static void clean_temp_files(void)
 172 {
 173     int i;
 174
 175     if (keep_generated) return;
 176
 177     for (i = 0; i < tmp_files->size; i++)
 178         unlink(tmp_files->base[i]);
 179 }
 180
 181 /* clean things up when aborting on a signal */
 182 static void exit_on_signal( int sig )
 183 {
 184     exit(1);  /* this will call the atexit functions */
 185 }
 186
 187 static char* get_temp_file(const char* prefix, const char* suffix)
 188 {
 189     int fd;
 190     char* tmp = strmake("%s-XXXXXX%s", prefix, suffix);
 191
 192 #ifdef HAVE_SIGPROCMASK
 193     sigset_t old_set;
 194     /* block signals while manipulating the temp files list */
 195     sigprocmask( SIG_BLOCK, &signal_mask, &old_set );
 196 #endif
 197     fd = mkstemps( tmp, strlen(suffix) );
 198     if (fd == -1)
 199     {
 200         /* could not create it in current directory, try in /tmp */
 201         free(tmp);
 202         tmp = strmake("/tmp/%s-XXXXXX%s", prefix, suffix);
 203         fd = mkstemps( tmp, strlen(suffix) );
 204         if (fd == -1) error( "could not create temp file" );
 205     }
 206     close( fd );
 207     strarray_add(tmp_files, tmp);
 208 #ifdef HAVE_SIGPROCMASK
 209     sigprocmask( SIG_SETMASK, &old_set, NULL );
 210 #endif
 211     return tmp;
 212 }
 213
 214 static const strarray* get_translator(enum processor processor)
 215 {
 216     static strarray* cpp = 0;
 217     static strarray* as = 0;
 218     static strarray* cc = 0;
 219     static strarray* cxx = 0;
 220
 221     switch(processor)
 222     {
 223         case proc_cpp:
 224             if (!cpp) cpp = strarray_fromstring(CPP, " ");
 225             return cpp;
 226         case proc_cc:
 227             if (!cc) cc = strarray_fromstring(CC, " ");
 228             return cc;
 229         case proc_cxx:
 230             if (!cxx) cxx = strarray_fromstring(CXX, " ");
 231             return cxx;
 232         case proc_as:
 233             if (!as) as = strarray_fromstring(AS, " ");
 234             return as;
 235     }
 236     error("Unknown processor");
 237 }
 238
 239 static void compile(struct options* opts, const char* lang)
 240 {
 241     strarray* comp_args = strarray_alloc();
 242     int j, gcc_defs = 0;
 243
 244     switch(opts->processor)
 245     {
 246         case proc_cpp:  gcc_defs = 1; break;
 247 #ifdef __GNUC__
 248         /* Note: if the C compiler is gcc we assume the C++ compiler is too */
 249         /* mixing different C and C++ compilers isn't supported in configure anyway */
 250         case proc_cc:  gcc_defs = 1; break;
 251         case proc_cxx: gcc_defs = 1; break;
 252 #else
 253         case proc_cc:  gcc_defs = 0; break;
 254         case proc_cxx: gcc_defs = 0; break;
 255 #endif
 256         case proc_as:  gcc_defs = 0; break;
 257     }
 258     strarray_addall(comp_args, get_translator(opts->processor));
 259
 260     if (opts->processor != proc_cpp)
 261     {
 262 #ifdef CC_FLAG_SHORT_WCHAR
 263         if (!opts->wine_mode && !opts->noshortwchar)
 264         {
 265             strarray_add(comp_args, CC_FLAG_SHORT_WCHAR);
 266             strarray_add(comp_args, "-DWINE_UNICODE_NATIVE");
 267         }
 268 #endif
 269         strarray_addall(comp_args, strarray_fromstring(DLLFLAGS, " "));
 270     }
 271
 272     strarray_add(comp_args, "-DWIN32");
 273     strarray_add(comp_args, "-D_WIN32");
 274     strarray_add(comp_args, "-D__WIN32");
 275     strarray_add(comp_args, "-D__WIN32__");
 276     strarray_add(comp_args, "-D__WINNT");
 277     strarray_add(comp_args, "-D__WINNT__");
 278
 279     if (gcc_defs)
 280     {
 281         strarray_add(comp_args, "-D__stdcall=__attribute__((__stdcall__))");
 282         strarray_add(comp_args, "-D__cdecl=__attribute__((__cdecl__))");
 283         strarray_add(comp_args, "-D__fastcall=__attribute__((__fastcall__))");
 284         strarray_add(comp_args, "-D_stdcall=__attribute__((__stdcall__))");
 285         strarray_add(comp_args, "-D_cdecl=__attribute__((__cdecl__))");
 286         strarray_add(comp_args, "-D_fastcall=__attribute__((__fastcall__))");
 287         strarray_add(comp_args, "-D__declspec(x)=__declspec_##x");
 288         strarray_add(comp_args, "-D__declspec_align(x)=__attribute__((aligned(x)))");
 289         strarray_add(comp_args, "-D__declspec_allocate(x)=__attribute__((section(x)))");
 290         strarray_add(comp_args, "-D__declspec_deprecated=__attribute__((deprecated))");
 291         strarray_add(comp_args, "-D__declspec_dllimport=__attribute__((dllimport))");
 292         strarray_add(comp_args, "-D__declspec_dllexport=__attribute__((dllexport))");
 293         strarray_add(comp_args, "-D__declspec_naked=__attribute__((naked))");
 294         strarray_add(comp_args, "-D__declspec_noinline=__attribute__((noinline))");
 295         strarray_add(comp_args, "-D__declspec_noreturn=__attribute__((noreturn))");
 296         strarray_add(comp_args, "-D__declspec_nothrow=__attribute__((nothrow))");
 297         strarray_add(comp_args, "-D__declspec_novtable=__attribute__(())"); /* ignore it */
 298         strarray_add(comp_args, "-D__declspec_selectany=__attribute__((weak))");
 299         strarray_add(comp_args, "-D__declspec_thread=__thread");
 300     }
 301
 302     /* Wine specific defines */
 303     strarray_add(comp_args, "-D__WINE__");
 304     strarray_add(comp_args, "-D__int8=char");
 305     strarray_add(comp_args, "-D__int16=short");
 306     /* FIXME: what about 64-bit platforms? */
 307     strarray_add(comp_args, "-D__int32=int");
 308 #ifdef HAVE_LONG_LONG
 309     strarray_add(comp_args, "-D__int64=long long");
 310 #endif
 311
 312     /* options we handle explicitly */
 313     if (opts->compile_only)
 314         strarray_add(comp_args, "-c");
 315     if (opts->output_name)
 316     {
 317         strarray_add(comp_args, "-o");
 318         strarray_add(comp_args, opts->output_name);
 319     }
 320
 321     /* the rest of the pass-through parameters */
 322     for ( j = 0 ; j < opts->compiler_args->size ; j++ )
 323         strarray_add(comp_args, opts->compiler_args->base[j]);
 324
 325     /* the language option, if any */
 326     if (lang && strcmp(lang, "-xnone"))
 327         strarray_add(comp_args, lang);
 328
 329     /* last, but not least, the files */
 330     for ( j = 0; j < opts->files->size; j++ )
 331     {
 332         if (opts->files->base[j][0] != '-')
 333             strarray_add(comp_args, opts->files->base[j]);
 334     }
 335
 336     /* standard includes come last in the include search path */
 337 #ifdef __GNUC__
 338 #define SYS_INCLUDE "-isystem"
 339 #else
 340 #define SYS_INCLUDE "-I"
 341 #endif
 342     if (!opts->wine_mode && !opts->nostdinc)
 343     {
 344         if (opts->use_msvcrt)
 345         {
 346             strarray_add(comp_args, SYS_INCLUDE INCLUDEDIR "/msvcrt");
 347             strarray_add(comp_args, "-D__MSVCRT__");
 348         }
 349         strarray_add(comp_args, SYS_INCLUDE INCLUDEDIR "/windows");
 350     }
 351 #undef SYS_INCLUDE
 352
 353     spawn(opts->prefix, comp_args, 0);
 354 }
 355
 356 static const char* compile_to_object(struct options* opts, const char* file, const char* lang)
 357 {
 358     struct options copts;
 359     char* base_name;
 360
 361     /* make a copy so we don't change any of the initial stuff */
 362     /* a shallow copy is exactly what we want in this case */
 363     base_name = get_basename(file);
 364     copts = *opts;
 365     copts.output_name = get_temp_file(base_name, ".o");
 366     copts.compile_only = 1;
 367     copts.files = strarray_alloc();
 368     strarray_add(copts.files, file);
 369     compile(&copts, lang);
 370     strarray_free(copts.files);
 371     free(base_name);
 372
 373     return copts.output_name;
 374 }
 375
 376 /* check if there is a static lib associated to a given dll */
 377 static char *find_static_lib( const char *dll )
 378 {
 379     char *lib = strmake("%s.a", dll);
 380     if (get_file_type(lib) == file_arh) return lib;
 381     free( lib );
 382     return NULL;
 383 }
 384
 385 static void build(struct options* opts)
 386 {
 387     static const char *stdlibpath[] = { DLLDIR, LIBDIR, "/usr/lib", "/usr/local/lib", "/lib" };
 388     strarray *lib_dirs, *files;
 389     strarray *spec_args, *link_args;
 390     char *output_file;
 391     const char *spec_o_name;
 392     const char *output_name, *spec_file, *lang;
 393     const char* winebuild = getenv("WINEBUILD");
 394     int generate_app_loader = 1;
 395     int j;
 396
 397     /* NOTE: for the files array we'll use the following convention:
 398      *    -axxx:  xxx is an archive (.a)
 399      *    -dxxx:  xxx is a DLL (.def)
 400      *    -lxxx:  xxx is an unsorted library
 401      *    -oxxx:  xxx is an object (.o)
 402      *    -rxxx:  xxx is a resource (.res)
 403      *    -sxxx:  xxx is a shared lib (.so)
 404      *    -xlll:  lll is the language (c, c++, etc.)
 405      */
 406
 407     if (!winebuild) winebuild = "winebuild";
 408
 409     output_file = strdup( opts->output_name ? opts->output_name : "a.out" );
 410
 411     /* 'winegcc -o app xxx.exe.so' only creates the load script */
 412     if (opts->files->size == 1 && strendswith(opts->files->base[0], ".exe.so"))
 413     {
 414         create_file(output_file, 0755, app_loader_template, opts->files->base[0]);
 415         return;
 416     }
 417
 418     /* generate app loader only for .exe */
 419     if (opts->shared || strendswith(output_file, ".exe.so"))
 420         generate_app_loader = 0;
 421
 422     /* normalize the filename a bit: strip .so, ensure it has proper ext */
 423     if (strendswith(output_file, ".so"))
 424         output_file[strlen(output_file) - 3] = 0;
 425     if (opts->shared)
 426     {
 427         if ((output_name = strrchr(output_file, '/'))) output_name++;
 428         else output_name = output_file;
 429         if (!strchr(output_name, '.'))
 430             output_file = strmake("%s.dll", output_file);
 431     }
 432     else if (!strendswith(output_file, ".exe"))
 433         output_file = strmake("%s.exe", output_file);
 434
 435     /* get the filename from the path */
 436     if ((output_name = strrchr(output_file, '/'))) output_name++;
 437     else output_name = output_file;
 438
 439     /* prepare the linking path */
 440     lib_dirs = strarray_dup(opts->lib_dirs);
 441     if (!opts->wine_mode)
 442     {
 443         for ( j = 0; j < sizeof(stdlibpath)/sizeof(stdlibpath[0]); j++ )
 444             strarray_add(lib_dirs, stdlibpath[j]);
 445     }
 446
 447     /* mark the files with their appropriate type */
 448     spec_file = lang = 0;
 449     files = strarray_alloc();
 450     for ( j = 0; j < opts->files->size; j++ )
 451     {
 452         const char* file = opts->files->base[j];
 453         if (file[0] != '-')
 454         {
 455             switch(get_file_type(file))
 456             {
 457                 case file_def:
 458                 case file_spec:
 459                     if (spec_file)
 460                         error("Only one spec file can be specified.");
 461                     spec_file = file;
 462                     break;
 463                 case file_rc:
 464                     /* FIXME: invoke wrc to build it */
 465                     error("Can't compile .rc file at the moment: %s", file);
 466                     break;
 467                 case file_res:
 468                     strarray_add(files, strmake("-r%s", file));
 469                     break;
 470                 case file_obj:
 471                     strarray_add(files, strmake("-o%s", file));
 472                     break;
 473                 case file_arh:
 474                     strarray_add(files, strmake("-a%s", file));
 475                     break;
 476                 case file_so:
 477                     strarray_add(files, strmake("-s%s", file));
 478                     break;
 479                 case file_na:
 480                     error("File does not exist: %s", file);
 481                     break;
 482                 default:
 483                     file = compile_to_object(opts, file, lang);
 484                     strarray_add(files, strmake("-o%s", file));
 485                     break;
 486             }
 487         }
 488         else if (file[1] == 'l')
 489         {
 490             char *static_lib, *fullname = 0;
 491             switch(get_lib_type(lib_dirs, file + 2, &fullname))
 492             {
 493                 case file_arh:
 494                     strarray_add(files, strmake("-a%s", fullname));
 495                     break;
 496                 case file_dll:
 497                     strarray_add(files, strmake("-d%s", file + 2));
 498                     if ((static_lib = find_static_lib(fullname)))
 499                     {
 500                         strarray_add(files, strmake("-a%s",static_lib));
 501                         free(static_lib);
 502                     }
 503                     break;
 504                 case file_so:
 505                     strarray_add(files, strmake("-s%s", file + 2));
 506                     break;
 507                 default:
 508                     /* keep it anyway, the linker may know what to do with it */
 509                     strarray_add(files, file);
 510                     break;
 511             }
 512             free(fullname);
 513         }
 514         else if (file[1] == 'x')
 515             lang = file;
 516     }
 517     if (opts->shared && !spec_file)
 518         error("A spec file is currently needed in shared mode");
 519
 520     /* add the default libraries, if needed */
 521     if (!opts->nostdlib)
 522     {
 523         if (opts->use_msvcrt) strarray_add(files, "-dmsvcrt");
 524     }
 525
 526     if (!opts->wine_mode && !opts->nodefaultlibs)
 527     {
 528         if (opts->gui_app)
 529         {
 530             strarray_add(files, "-dshell32");
 531             strarray_add(files, "-dcomdlg32");
 532             strarray_add(files, "-dgdi32");
 533         }
 534         strarray_add(files, "-dadvapi32");
 535         strarray_add(files, "-duser32");
 536         strarray_add(files, "-dkernel32");
 537     }
 538
 539     if (!opts->nostartfiles)
 540     {
 541         char *fullname = NULL;
 542         if (get_lib_type(lib_dirs, "winecrt0", &fullname) == file_arh)
 543             strarray_add(files, strmake("-a%s", fullname));
 544         free( fullname );
 545     }
 546
 547     /* run winebuild to generate the .spec.o file */
 548     spec_args = strarray_alloc();
 549     spec_o_name = get_temp_file(output_name, ".spec.o");
 550     strarray_add(spec_args, winebuild);
 551     if (verbose) strarray_add(spec_args, "-v");
 552     if (keep_generated) strarray_add(spec_args, "--save-temps");
 553     strarray_add(spec_args, "--as-cmd");
 554     strarray_add(spec_args, AS);
 555     strarray_add(spec_args, "--ld-cmd");
 556     strarray_add(spec_args, LD);
 557     strarray_addall(spec_args, strarray_fromstring(DLLFLAGS, " "));
 558     strarray_add(spec_args, opts->shared ? "--dll" : "--exe");
 559     strarray_add(spec_args, "-o");
 560     strarray_add(spec_args, spec_o_name);
 561     if (spec_file)
 562     {
 563         strarray_add(spec_args, "-E");
 564         strarray_add(spec_args, spec_file);
 565     }
 566
 567     if (!opts->shared)
 568     {
 569         strarray_add(spec_args, "-F");
 570         strarray_add(spec_args, output_name);
 571         strarray_add(spec_args, "--subsystem");
 572         strarray_add(spec_args, opts->gui_app ? "windows" : "console");
 573         if (opts->unicode_app)
 574         {
 575             strarray_add(spec_args, "--entry");
 576             strarray_add(spec_args, "__wine_spec_exe_wentry");
 577         }
 578     }
 579
 580     for ( j = 0; j < lib_dirs->size; j++ )
 581         strarray_add(spec_args, strmake("-L%s", lib_dirs->base[j]));
 582
 583     for ( j = 0 ; j < opts->winebuild_args->size ; j++ )
 584         strarray_add(spec_args, opts->winebuild_args->base[j]);
 585
 586     for ( j = 0; j < files->size; j++ )
 587     {
 588         const char* name = files->base[j] + 2;
 589         switch(files->base[j][1])
 590         {
 591             case 'd':
 592                 strarray_add(spec_args, strmake("-l%s", name));
 593                 break;
 594             case 'r':
 595                 strarray_add(spec_args, files->base[j]);
 596                 break;
 597             case 'a':
 598             case 'o':
 599                 strarray_add(spec_args, name);
 600                 break;
 601         }
 602     }
 603
 604     spawn(opts->prefix, spec_args, 0);
 605
 606     /* link everything together now */
 607     link_args = strarray_alloc();
 608     strarray_addall(link_args, get_translator(opts->processor));
 609     strarray_addall(link_args, strarray_fromstring(LDDLLFLAGS, " "));
 610
 611     strarray_add(link_args, "-o");
 612     strarray_add(link_args, strmake("%s.so", output_file));
 613
 614     for ( j = 0 ; j < opts->linker_args->size ; j++ )
 615         strarray_add(link_args, opts->linker_args->base[j]);
 616
 617 #ifdef __APPLE__
 618     if (opts->image_base)
 619     {
 620         strarray_add(link_args, "-image_base");
 621         strarray_add(link_args, opts->image_base);
 622     }
 623 #endif
 624
 625     for ( j = 0; j < lib_dirs->size; j++ )
 626         strarray_add(link_args, strmake("-L%s", lib_dirs->base[j]));
 627
 628     strarray_add(link_args, spec_o_name);
 629
 630     for ( j = 0; j < files->size; j++ )
 631     {
 632         const char* name = files->base[j] + 2;
 633         switch(files->base[j][1])
 634         {
 635             case 'l':
 636             case 's':
 637                 strarray_add(link_args, strmake("-l%s", name));
 638                 break;
 639             case 'a':
 640             case 'o':
 641                 strarray_add(link_args, name);
 642                 break;
 643         }
 644     }
 645
 646     if (!opts->nostdlib)
 647     {
 648         strarray_add(link_args, "-lwine");
 649         strarray_add(link_args, "-lm");
 650         strarray_add(link_args, "-lc");
 651     }
 652
 653     spawn(opts->prefix, link_args, 0);
 654
 655     /* set the base address */
 656     if (opts->image_base)
 657     {
 658         const char *prelink = PRELINK;
 659         if (prelink[0] && strcmp(prelink,"false"))
 660         {
 661             strarray *prelink_args = strarray_alloc();
 662             strarray_add(prelink_args, prelink);
 663             strarray_add(prelink_args, "--reloc-only");
 664             strarray_add(prelink_args, opts->image_base);
 665             strarray_add(prelink_args, strmake("%s.so", output_file));
 666             spawn(opts->prefix, prelink_args, 1);
 667             strarray_free(prelink_args);
 668         }
 669     }
 670
 671     /* create the loader script */
 672     if (generate_app_loader)
 673     {
 674         if (strendswith(output_file, ".exe")) output_file[strlen(output_file) - 4] = 0;
 675         create_file(output_file, 0755, app_loader_template, strmake("%s.exe.so", output_name));
 676     }
 677 }
 678
 679
 680 static void forward(int argc, char **argv, struct options* opts)
 681 {
 682     strarray* args = strarray_alloc();
 683     int j;
 684
 685     strarray_addall(args, get_translator(opts->processor));
 686
 687     for( j = 1; j < argc; j++ )
 688         strarray_add(args, argv[j]);
 689
 690     spawn(opts->prefix, args, 0);
 691 }
 692
 693 /*
 694  *      Linker Options
 695  *          object-file-name  -llibrary -nostartfiles  -nodefaultlibs
 696  *          -nostdlib -s  -static  -static-libgcc  -shared  -shared-libgcc
 697  *          -symbolic -Wl,option  -Xlinker option -u symbol
 698  *          -framework name
 699  */
 700 static int is_linker_arg(const char* arg)
 701 {
 702     static const char* link_switches[] =
 703     {
 704         "-nostartfiles", "-nodefaultlibs", "-nostdlib", "-s",
 705         "-static", "-static-libgcc", "-shared", "-shared-libgcc", "-symbolic",
 706         "-framework"
 707     };
 708     int j;
 709
 710     switch (arg[1])
 711     {
 712         case 'l':
 713         case 'u':
 714             return 1;
 715         case 'W':
 716             if (strncmp("-Wl,", arg, 4) == 0) return 1;
 717             break;
 718         case 'X':
 719             if (strcmp("-Xlinker", arg) == 0) return 1;
 720             break;
 721     }
 722
 723     for (j = 0; j < sizeof(link_switches)/sizeof(link_switches[0]); j++)
 724         if (strcmp(link_switches[j], arg) == 0) return 1;
 725
 726     return 0;
 727 }
 728
 729 /*
 730  *      Target Options
 731  *          -b machine  -V version
 732  */
 733 static int is_target_arg(const char* arg)
 734 {
 735     return arg[1] == 'b' || arg[2] == 'V';
 736 }
 737
 738
 739 /*
 740  *      Directory Options
 741  *          -Bprefix  -Idir  -I-  -Ldir  -specs=file
 742  */
 743 static int is_directory_arg(const char* arg)
 744 {
 745     return arg[1] == 'B' || arg[1] == 'L' || arg[1] == 'I' || strncmp("-specs=", arg, 7) == 0;
 746 }
 747
 748 /*
 749  *      MinGW Options
 750  *          -mno-cygwin -mwindows -mconsole -mthreads -municode
 751  */
 752 static int is_mingw_arg(const char* arg)
 753 {
 754     static const char* mingw_switches[] =
 755     {
 756         "-mno-cygwin", "-mwindows", "-mconsole", "-mthreads", "-municode"
 757     };
 758     int j;
 759
 760     for (j = 0; j < sizeof(mingw_switches)/sizeof(mingw_switches[0]); j++)
 761         if (strcmp(mingw_switches[j], arg) == 0) return 1;
 762
 763     return 0;
 764 }
 765
 766 int main(int argc, char **argv)
 767 {
 768     int i, c, next_is_arg = 0, linking = 1;
 769     int raw_compiler_arg, raw_linker_arg;
 770     const char* option_arg;
 771     struct options opts;
 772     char* lang = 0;
 773     char* str;
 774
 775 #ifdef SIGHUP
 776     signal( SIGHUP, exit_on_signal );
 777 #endif
 778     signal( SIGTERM, exit_on_signal );
 779     signal( SIGINT, exit_on_signal );
 780 #ifdef HAVE_SIGADDSET
 781     sigemptyset( &signal_mask );
 782     sigaddset( &signal_mask, SIGHUP );
 783     sigaddset( &signal_mask, SIGTERM );
 784     sigaddset( &signal_mask, SIGINT );
 785 #endif
 786
 787     /* setup tmp file removal at exit */
 788     tmp_files = strarray_alloc();
 789     atexit(clean_temp_files);
 790
 791     /* initialize options */
 792     memset(&opts, 0, sizeof(opts));
 793     opts.lib_dirs = strarray_alloc();
 794     opts.files = strarray_alloc();
 795     opts.linker_args = strarray_alloc();
 796     opts.compiler_args = strarray_alloc();
 797     opts.winebuild_args = strarray_alloc();
 798
 799     /* determine the processor type */
 800     if (strendswith(argv[0], "winecpp")) opts.processor = proc_cpp;
 801     else if (strendswith(argv[0], "++")) opts.processor = proc_cxx;
 802
 803     /* parse options */
 804     for ( i = 1 ; i < argc ; i++ )
 805     {
 806         if (argv[i][0] == '-')  /* option */
 807         {
 808             /* determine if tihs switch is followed by a separate argument */
 809             next_is_arg = 0;
 810             option_arg = 0;
 811             switch(argv[i][1])
 812             {
 813                 case 'x': case 'o': case 'D': case 'U':
 814                 case 'I': case 'A': case 'l': case 'u':
 815                 case 'b': case 'V': case 'G': case 'L':
 816                 case 'B':
 817                     if (argv[i][2]) option_arg = &argv[i][2];
 818                     else next_is_arg = 1;
 819                     break;
 820                 case 'i':
 821                     next_is_arg = 1;
 822                     break;
 823                 case 'a':
 824                     if (strcmp("-aux-info", argv[i]) == 0)
 825                         next_is_arg = 1;
 826                     break;
 827                 case 'X':
 828                     if (strcmp("-Xlinker", argv[i]) == 0)
 829                         next_is_arg = 1;
 830                     break;
 831                 case 'M':
 832                     c = argv[i][2];
 833                     if (c == 'F' || c == 'T' || c == 'Q')
 834                     {
 835                         if (argv[i][3]) option_arg = &argv[i][3];
 836                         else next_is_arg = 1;
 837                     }
 838                     break;
 839                 case 'f':
 840                     if (strcmp("-framework", argv[i]) == 0)
 841                         next_is_arg = 1;
 842                     break;
 843             }
 844             if (next_is_arg) option_arg = argv[i+1];
 845
 846             /* determine what options go 'as is' to the linker & the compiler */
 847             raw_compiler_arg = raw_linker_arg = 0;
 848             if (is_linker_arg(argv[i]))
 849             {
 850                 raw_linker_arg = 1;
 851             }
 852             else
 853             {
 854                 if (is_directory_arg(argv[i]) || is_target_arg(argv[i]))
 855                     raw_linker_arg = 1;
 856                 raw_compiler_arg = !is_mingw_arg(argv[i]);
 857             }
 858
 859             /* these things we handle explicitly so we don't pass them 'as is' */
 860             if (argv[i][1] == 'l' || argv[i][1] == 'I' || argv[i][1] == 'L')
 861                 raw_linker_arg = 0;
 862             if (argv[i][1] == 'c' || argv[i][1] == 'L')
 863                 raw_compiler_arg = 0;
 864             if (argv[i][1] == 'o')
 865                 raw_compiler_arg = raw_linker_arg = 0;
 866
 867             /* do a bit of semantic analysis */
 868             switch (argv[i][1])
 869             {
 870                 case 'B':
 871                     str = strdup(option_arg);
 872                     if (strendswith(str, "/tools/winebuild"))
 873                     {
 874                         opts.wine_mode = 1;
 875                         /* don't pass it to the compiler, this generates warnings */
 876                         raw_compiler_arg = raw_linker_arg = 0;
 877                     }
 878                     if (strendswith(str, "/")) str[strlen(str) - 1] = 0;
 879                     if (!opts.prefix) opts.prefix = strarray_alloc();
 880                     strarray_add(opts.prefix, str);
 881                     break;
 882                 case 'c':        /* compile or assemble */
 883                     if (argv[i][2] == 0) opts.compile_only = 1;
 884                     /* fall through */
 885                 case 'S':        /* generate assembler code */
 886                 case 'E':        /* preprocess only */
 887                     if (argv[i][2] == 0) linking = 0;
 888                     break;
 889                 case 'f':
 890                     if (strcmp("-fno-short-wchar", argv[i]) == 0)
 891                         opts.noshortwchar = 1;
 892                     break;
 893                 case 'l':
 894                     strarray_add(opts.files, strmake("-l%s", option_arg));
 895                     break;
 896                 case 'L':
 897                     strarray_add(opts.lib_dirs, option_arg);
 898                     break;
 899                 case 'M':        /* map file generation */
 900                     linking = 0;
 901                     break;
 902                 case 'm':
 903                     if (strcmp("-mno-cygwin", argv[i]) == 0)
 904                         opts.use_msvcrt = 1;
 905                     else if (strcmp("-mwindows", argv[i]) == 0)
 906                         opts.gui_app = 1;
 907                     else if (strcmp("-mconsole", argv[i]) == 0)
 908                         opts.gui_app = 0;
 909                     else if (strcmp("-municode", argv[i]) == 0)
 910                         opts.unicode_app = 1;
 911                     break;
 912                 case 'n':
 913                     if (strcmp("-nostdinc", argv[i]) == 0)
 914                         opts.nostdinc = 1;
 915                     else if (strcmp("-nodefaultlibs", argv[i]) == 0)
 916                         opts.nodefaultlibs = 1;
 917                     else if (strcmp("-nostdlib", argv[i]) == 0)
 918                         opts.nostdlib = 1;
 919                     else if (strcmp("-nostartfiles", argv[i]) == 0)
 920                         opts.nostartfiles = 1;
 921                     break;
 922                 case 'o':
 923                     opts.output_name = option_arg;
 924                     break;
 925                 case 's':
 926                     if (strcmp("-static", argv[i]) == 0)
 927                         linking = -1;
 928                     else if(strcmp("-save-temps", argv[i]) == 0)
 929                         keep_generated = 1;
 930                     else if(strcmp("-shared", argv[i]) == 0)
 931                     {
 932                         opts.shared = 1;
 933                         raw_compiler_arg = raw_linker_arg = 0;
 934                     }
 935                     break;
 936                 case 'v':
 937                     if (argv[i][2] == 0) verbose++;
 938                     break;
 939                 case 'W':
 940                     if (strncmp("-Wl,", argv[i], 4) == 0)
 941                     {
 942                         unsigned int j;
 943                         strarray* Wl = strarray_fromstring(argv[i] + 4, ",");
 944                         for (j = 0; j < Wl->size; j++)
 945                         {
 946                             if (!strcmp(Wl->base[j], "--image-base") && j < Wl->size - 1)
 947                             {
 948                                 opts.image_base = strdup( Wl->base[++j] );
 949                                 continue;
 950                             }
 951                             if (!strcmp(Wl->base[j], "-static")) linking = -1;
 952                             strarray_add(opts.linker_args, strmake("-Wl,%s",Wl->base[j]));
 953                         }
 954                         strarray_free(Wl);
 955                         raw_compiler_arg = raw_linker_arg = 0;
 956                     }
 957                     else if (strncmp("-Wb,", argv[i], 4) == 0)
 958                     {
 959                         strarray* Wb = strarray_fromstring(argv[i] + 4, ",");
 960                         strarray_addall(opts.winebuild_args, Wb);
 961                         strarray_free(Wb);
 962                         /* don't pass it to the compiler, it generates errors */
 963                         raw_compiler_arg = raw_linker_arg = 0;
 964                     }
 965                     break;
 966                 case 'x':
 967                     lang = strmake("-x%s", option_arg);
 968                     strarray_add(opts.files, lang);
 969                     /* we'll pass these flags ourselves, explicitely */
 970                     raw_compiler_arg = raw_linker_arg = 0;
 971                     break;
 972                 case '-':
 973                     if (strcmp("-static", argv[i]+1) == 0)
 974                         linking = -1;
 975                     break;
 976             }
 977
 978             /* put the arg into the appropriate bucket */
 979             if (raw_linker_arg)
 980             {
 981                 strarray_add(opts.linker_args, argv[i]);
 982                 if (next_is_arg && (i + 1 < argc))
 983                     strarray_add(opts.linker_args, argv[i + 1]);
 984             }
 985             if (raw_compiler_arg)
 986             {
 987                 strarray_add(opts.compiler_args, argv[i]);
 988                 if (next_is_arg && (i + 1 < argc))
 989                     strarray_add(opts.compiler_args, argv[i + 1]);
 990             }
 991
 992             /* skip the next token if it's an argument */
 993             if (next_is_arg) i++;
 994         }
 995         else
 996         {
 997             strarray_add(opts.files, argv[i]);
 998         }
 999     }
1000
1001     if (opts.processor == proc_cpp) linking = 0;
1002     if (linking == -1) error("Static linking is not supported.");
1003
1004     if (opts.files->size == 0) forward(argc, argv, &opts);
1005     else if (linking) build(&opts);
1006     else compile(&opts, lang);
1007
1008     return 0;
1009 }