tools/winebuild/main.c

   1 /*
   2  * Main function
   3  *
   4  * Copyright 1993 Robert J. Amstadt
   5  * Copyright 1995 Martin von Loewis
   6  * Copyright 1995, 1996, 1997 Alexandre Julliard
   7  * Copyright 1997 Eric Youngdale
   8  * Copyright 1999 Ulrich Weigand
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  23  */
  24
  25 #include "config.h"
  26 #include "wine/port.h"
  27
  28 #include <assert.h>
  29 #include <stdio.h>
  30 #include <signal.h>
  31 #include <errno.h>
  32 #include <string.h>
  33 #include <stdarg.h>
  34 #include <ctype.h>
  35 #ifdef HAVE_GETOPT_H
  36 # include <getopt.h>
  37 #endif
  38
  39 #include "build.h"
  40
  41 int UsePIC = 0;
  42 int nb_lib_paths = 0;
  43 int nb_errors = 0;
  44 int display_warnings = 0;
  45 int kill_at = 0;
  46 int verbose = 0;
  47 int save_temps = 0;
  48 int link_ext_symbols = 0;
  49 int force_pointer_size = 0;
  50
  51 #ifdef __i386__
  52 enum target_cpu target_cpu = CPU_x86;
  53 #elif defined(__x86_64__)
  54 enum target_cpu target_cpu = CPU_x86_64;
  55 #elif defined(__sparc__)
  56 enum target_cpu target_cpu = CPU_SPARC;
  57 #elif defined(__ALPHA__)
  58 enum target_cpu target_cpu = CPU_ALPHA;
  59 #elif defined(__powerpc__)
  60 enum target_cpu target_cpu = CPU_POWERPC;
  61 #else
  62 #error Unsupported CPU
  63 #endif
  64
  65 #ifdef __APPLE__
  66 enum target_platform target_platform = PLATFORM_APPLE;
  67 #elif defined(__sun)
  68 enum target_platform target_platform = PLATFORM_SOLARIS;
  69 #elif defined(_WINDOWS)
  70 enum target_platform target_platform = PLATFORM_WINDOWS;
  71 #else
  72 enum target_platform target_platform = PLATFORM_UNSPECIFIED;
  73 #endif
  74
  75 char *target_alias = NULL;
  76 char **lib_path = NULL;
  77
  78 char *input_file_name = NULL;
  79 char *spec_file_name = NULL;
  80 FILE *output_file = NULL;
  81 const char *output_file_name = NULL;
  82 static const char *output_file_source_name;
  83
  84 char *as_command = NULL;
  85 char *ld_command = NULL;
  86 char *nm_command = NULL;
  87
  88 static int nb_res_files;
  89 static char **res_files;
  90
  91 /* execution mode */
  92 enum exec_mode_values
  93 {
  94     MODE_NONE,
  95     MODE_DLL,
  96     MODE_EXE,
  97     MODE_DEF,
  98     MODE_RELAY16,
  99     MODE_RELAY32
 100 };
 101
 102 static enum exec_mode_values exec_mode = MODE_NONE;
 103
 104 static const struct
 105 {
 106     const char *name;
 107     enum target_platform platform;
 108 } platform_names[] =
 109 {
 110     { "macos",   PLATFORM_APPLE },
 111     { "darwin",  PLATFORM_APPLE },
 112     { "solaris", PLATFORM_SOLARIS },
 113     { "windows", PLATFORM_WINDOWS },
 114     { "winnt",   PLATFORM_WINDOWS }
 115 };
 116
 117 /* set the dll file name from the input file name */
 118 static void set_dll_file_name( const char *name, DLLSPEC *spec )
 119 {
 120     char *p;
 121
 122     if (spec->file_name) return;
 123
 124     if ((p = strrchr( name, '\\' ))) name = p + 1;
 125     if ((p = strrchr( name, '/' ))) name = p + 1;
 126     spec->file_name = xmalloc( strlen(name) + 5 );
 127     strcpy( spec->file_name, name );
 128     if ((p = strrchr( spec->file_name, '.' )))
 129     {
 130         if (!strcmp( p, ".spec" ) || !strcmp( p, ".def" )) *p = 0;
 131     }
 132 }
 133
 134 /* set the dll subsystem */
 135 static void set_subsystem( const char *subsystem, DLLSPEC *spec )
 136 {
 137     char *major, *minor, *str = xstrdup( subsystem );
 138
 139     if ((major = strchr( str, ':' ))) *major++ = 0;
 140     if (!strcmp( str, "native" )) spec->subsystem = IMAGE_SUBSYSTEM_NATIVE;
 141     else if (!strcmp( str, "windows" )) spec->subsystem = IMAGE_SUBSYSTEM_WINDOWS_GUI;
 142     else if (!strcmp( str, "console" )) spec->subsystem = IMAGE_SUBSYSTEM_WINDOWS_CUI;
 143     else if (!strcmp( str, "win16" )) spec->type = SPEC_WIN16;
 144     else fatal_error( "Invalid subsystem name '%s'\n", subsystem );
 145     if (major)
 146     {
 147         if ((minor = strchr( major, '.' )))
 148         {
 149             *minor++ = 0;
 150             spec->subsystem_minor = atoi( minor );
 151         }
 152         spec->subsystem_major = atoi( major );
 153     }
 154     free( str );
 155 }
 156
 157 /* set the target CPU and platform */
 158 static void set_target( const char *target )
 159 {
 160     unsigned int i;
 161     char *p, *platform, *spec = xstrdup( target );
 162
 163     /* target specification is in the form CPU-MANUFACTURER-OS or CPU-MANUFACTURER-KERNEL-OS */
 164
 165     target_alias = xstrdup( target );
 166
 167     /* get the CPU part */
 168
 169     if (!(p = strchr( spec, '-' ))) fatal_error( "Invalid target specification '%s'\n", target );
 170     *p++ = 0;
 171     if ((target_cpu = get_cpu_from_name( spec )) == -1)
 172         fatal_error( "Unrecognized CPU '%s'\n", spec );
 173     platform = p;
 174     if ((p = strrchr( p, '-' ))) platform = p + 1;
 175
 176     /* get the OS part */
 177
 178     target_platform = PLATFORM_UNSPECIFIED;  /* default value */
 179     for (i = 0; i < sizeof(platform_names)/sizeof(platform_names[0]); i++)
 180     {
 181         if (!strncmp( platform_names[i].name, platform, strlen(platform_names[i].name) ))
 182         {
 183             target_platform = platform_names[i].platform;
 184             break;
 185         }
 186     }
 187
 188     free( spec );
 189 }
 190
 191 /* cleanup on program exit */
 192 static void cleanup(void)
 193 {
 194     if (output_file_name) unlink( output_file_name );
 195 }
 196
 197 /* clean things up when aborting on a signal */
 198 static void exit_on_signal( int sig )
 199 {
 200     exit(1);  /* this will call atexit functions */
 201 }
 202
 203 /*******************************************************************
 204  *         command-line option handling
 205  */
 206 static const char usage_str[] =
 207 "Usage: winebuild [OPTIONS] [FILES]\n\n"
 208 "Options:\n"
 209 "       --as-cmd=AS          Command to use for assembling (default: as)\n"
 210 "   -b, --target=TARGET      Specify target CPU and platform for cross-compiling\n"
 211 "   -d, --delay-lib=LIB      Import the specified library in delayed mode\n"
 212 "   -D SYM                   Ignored for C flags compatibility\n"
 213 "   -e, --entry=FUNC         Set the DLL entry point function (default: DllMain)\n"
 214 "   -E, --export=FILE        Export the symbols defined in the .spec or .def file\n"
 215 "       --external-symbols   Allow linking to external symbols\n"
 216 "   -f FLAGS                 Compiler flags (only -fPIC is supported)\n"
 217 "   -F, --filename=DLLFILE   Set the DLL filename (default: from input file name)\n"
 218 "   -h, --help               Display this help message\n"
 219 "   -H, --heap=SIZE          Set the heap size for a Win16 dll\n"
 220 "   -i, --ignore=SYM[,SYM]   Ignore specified symbols when resolving imports\n"
 221 "   -I DIR                   Ignored for C flags compatibility\n"
 222 "   -k, --kill-at            Kill stdcall decorations in generated .def files\n"
 223 "   -K, FLAGS                Compiler flags (only -KPIC is supported)\n"
 224 "       --ld-cmd=LD          Command to use for linking (default: ld)\n"
 225 "   -l, --library=LIB        Import the specified library\n"
 226 "   -L, --library-path=DIR   Look for imports libraries in DIR\n"
 227 "   -m32, -m64               Force building 32-bit resp. 64-bit code\n"
 228 "   -M, --main-module=MODULE Set the name of the main module for a Win16 dll\n"
 229 "       --nm-cmd=NM          Command to use to get undefined symbols (default: nm)\n"
 230 "       --nxcompat=y|n       Set the NX compatibility flag (default: yes)\n"
 231 "   -N, --dll-name=DLLNAME   Set the DLL name (default: from input file name)\n"
 232 "   -o, --output=NAME        Set the output file name (default: stdout)\n"
 233 "   -r, --res=RSRC.RES       Load resources from RSRC.RES\n"
 234 "       --save-temps         Do not delete the generated intermediate files\n"
 235 "       --subsystem=SUBSYS   Set the subsystem (one of native, windows, console)\n"
 236 "   -u, --undefined=SYMBOL   Add an undefined reference to SYMBOL when linking\n"
 237 "   -v, --verbose            Display the programs invoked\n"
 238 "       --version            Print the version and exit\n"
 239 "   -w, --warnings           Turn on warnings\n"
 240 "\nMode options:\n"
 241 "       --dll                Build a .c file from a .spec or .def file\n"
 242 "       --def                Build a .def file from a .spec file\n"
 243 "       --exe                Build a .c file for an executable\n"
 244 "       --relay16            Build the 16-bit relay assembly routines\n"
 245 "       --relay32            Build the 32-bit relay assembly routines\n\n"
 246 "The mode options are mutually exclusive; you must specify one and only one.\n\n";
 247
 248 enum long_options_values
 249 {
 250     LONG_OPT_DLL = 1,
 251     LONG_OPT_DEF,
 252     LONG_OPT_EXE,
 253     LONG_OPT_ASCMD,
 254     LONG_OPT_EXTERNAL_SYMS,
 255     LONG_OPT_LDCMD,
 256     LONG_OPT_NMCMD,
 257     LONG_OPT_NXCOMPAT,
 258     LONG_OPT_RELAY16,
 259     LONG_OPT_RELAY32,
 260     LONG_OPT_SAVE_TEMPS,
 261     LONG_OPT_SUBSYSTEM,
 262     LONG_OPT_VERSION
 263 };
 264
 265 static const char short_options[] = "C:D:E:F:H:I:K:L:M:N:b:d:e:f:hi:kl:m:o:r:u:vw";
 266
 267 static const struct option long_options[] =
 268 {
 269     { "dll",           0, 0, LONG_OPT_DLL },
 270     { "def",           0, 0, LONG_OPT_DEF },
 271     { "exe",           0, 0, LONG_OPT_EXE },
 272     { "as-cmd",        1, 0, LONG_OPT_ASCMD },
 273     { "external-symbols", 0, 0, LONG_OPT_EXTERNAL_SYMS },
 274     { "ld-cmd",        1, 0, LONG_OPT_LDCMD },
 275     { "nm-cmd",        1, 0, LONG_OPT_NMCMD },
 276     { "nxcompat",      1, 0, LONG_OPT_NXCOMPAT },
 277     { "relay16",       0, 0, LONG_OPT_RELAY16 },
 278     { "relay32",       0, 0, LONG_OPT_RELAY32 },
 279     { "save-temps",    0, 0, LONG_OPT_SAVE_TEMPS },
 280     { "subsystem",     1, 0, LONG_OPT_SUBSYSTEM },
 281     { "version",       0, 0, LONG_OPT_VERSION },
 282     /* aliases for short options */
 283     { "target",        1, 0, 'b' },
 284     { "delay-lib",     1, 0, 'd' },
 285     { "export",        1, 0, 'E' },
 286     { "entry",         1, 0, 'e' },
 287     { "filename",      1, 0, 'F' },
 288     { "help",          0, 0, 'h' },
 289     { "heap",          1, 0, 'H' },
 290     { "ignore",        1, 0, 'i' },
 291     { "kill-at",       0, 0, 'k' },
 292     { "library",       1, 0, 'l' },
 293     { "library-path",  1, 0, 'L' },
 294     { "main-module",   1, 0, 'M' },
 295     { "dll-name",      1, 0, 'N' },
 296     { "output",        1, 0, 'o' },
 297     { "res",           1, 0, 'r' },
 298     { "undefined",     1, 0, 'u' },
 299     { "verbose",       0, 0, 'v' },
 300     { "warnings",      0, 0, 'w' },
 301     { NULL,            0, 0, 0 }
 302 };
 303
 304 static void usage( int exit_code )
 305 {
 306     fprintf( stderr, "%s", usage_str );
 307     exit( exit_code );
 308 }
 309
 310 static void set_exec_mode( enum exec_mode_values mode )
 311 {
 312     if (exec_mode != MODE_NONE) usage(1);
 313     exec_mode = mode;
 314 }
 315
 316 /* parse options from the argv array and remove all the recognized ones */
 317 static char **parse_options( int argc, char **argv, DLLSPEC *spec )
 318 {
 319     char *p;
 320     int optc;
 321
 322     while ((optc = getopt_long( argc, argv, short_options, long_options, NULL )) != -1)
 323     {
 324         switch(optc)
 325         {
 326         case 'D':
 327             /* ignored */
 328             break;
 329         case 'E':
 330             spec_file_name = xstrdup( optarg );
 331             set_dll_file_name( optarg, spec );
 332             break;
 333         case 'F':
 334             spec->file_name = xstrdup( optarg );
 335             break;
 336         case 'H':
 337             if (!isdigit(optarg[0]))
 338                 fatal_error( "Expected number argument with -H option instead of '%s'\n", optarg );
 339             spec->heap_size = atoi(optarg);
 340             if (spec->heap_size > 65535)
 341                 fatal_error( "Invalid heap size %d, maximum is 65535\n", spec->heap_size );
 342             break;
 343         case 'I':
 344             /* ignored */
 345             break;
 346         case 'K':
 347             /* ignored, because cc generates correct code. */
 348             break;
 349         case 'L':
 350             lib_path = xrealloc( lib_path, (nb_lib_paths+1) * sizeof(*lib_path) );
 351             lib_path[nb_lib_paths++] = xstrdup( optarg );
 352             break;
 353         case 'm':
 354             if (strcmp( optarg, "32" ) && strcmp( optarg, "64" ))
 355                 fatal_error( "Invalid -m option '%s', expected -m32 or -m64\n", optarg );
 356             if (!strcmp( optarg, "32" )) force_pointer_size = 4;
 357             else force_pointer_size = 8;
 358             break;
 359         case 'M':
 360             spec->main_module = xstrdup( optarg );
 361             break;
 362         case 'N':
 363             spec->dll_name = xstrdup( optarg );
 364             break;
 365         case 'b':
 366             set_target( optarg );
 367             break;
 368         case 'd':
 369             add_delayed_import( optarg );
 370             break;
 371         case 'e':
 372             spec->init_func = xstrdup( optarg );
 373             if ((p = strchr( spec->init_func, '@' ))) *p = 0;  /* kill stdcall decoration */
 374             break;
 375         case 'f':
 376             if (!strcmp( optarg, "PIC") || !strcmp( optarg, "pic")) UsePIC = 1;
 377             /* ignore all other flags */
 378             break;
 379         case 'h':
 380             usage(0);
 381             break;
 382         case 'i':
 383             {
 384                 char *str = xstrdup( optarg );
 385                 char *token = strtok( str, "," );
 386                 while (token)
 387                 {
 388                     add_ignore_symbol( token );
 389                     token = strtok( NULL, "," );
 390                 }
 391                 free( str );
 392             }
 393             break;
 394         case 'k':
 395             kill_at = 1;
 396             break;
 397         case 'l':
 398             add_import_dll( optarg, NULL );
 399             break;
 400         case 'o':
 401             {
 402                 char *ext = strrchr( optarg, '.' );
 403
 404                 if (unlink( optarg ) == -1 && errno != ENOENT)
 405                     fatal_error( "Unable to create output file '%s'\n", optarg );
 406                 if (ext && !strcmp( ext, ".o" ))
 407                 {
 408                     output_file_source_name = get_temp_file_name( optarg, ".s" );
 409                     if (!(output_file = fopen( output_file_source_name, "w" )))
 410                         fatal_error( "Unable to create output file '%s'\n", optarg );
 411                 }
 412                 else
 413                 {
 414                     if (!(output_file = fopen( optarg, "w" )))
 415                         fatal_error( "Unable to create output file '%s'\n", optarg );
 416                 }
 417                 output_file_name = xstrdup(optarg);
 418                 atexit( cleanup );  /* make sure we remove the output file on exit */
 419             }
 420             break;
 421         case 'r':
 422             res_files = xrealloc( res_files, (nb_res_files+1) * sizeof(*res_files) );
 423             res_files[nb_res_files++] = xstrdup( optarg );
 424             break;
 425         case 'u':
 426             add_extra_ld_symbol( optarg );
 427             break;
 428         case 'v':
 429             verbose++;
 430             break;
 431         case 'w':
 432             display_warnings = 1;
 433             break;
 434         case LONG_OPT_DLL:
 435             set_exec_mode( MODE_DLL );
 436             break;
 437         case LONG_OPT_DEF:
 438             set_exec_mode( MODE_DEF );
 439             break;
 440         case LONG_OPT_EXE:
 441             set_exec_mode( MODE_EXE );
 442             if (!spec->subsystem) spec->subsystem = IMAGE_SUBSYSTEM_WINDOWS_GUI;
 443             break;
 444         case LONG_OPT_ASCMD:
 445             as_command = xstrdup( optarg );
 446             break;
 447         case LONG_OPT_EXTERNAL_SYMS:
 448             link_ext_symbols = 1;
 449             break;
 450         case LONG_OPT_LDCMD:
 451             ld_command = xstrdup( optarg );
 452             break;
 453         case LONG_OPT_NMCMD:
 454             nm_command = xstrdup( optarg );
 455             break;
 456         case LONG_OPT_NXCOMPAT:
 457             if (optarg[0] == 'n' || optarg[0] == 'N')
 458                 spec->dll_characteristics &= ~IMAGE_DLLCHARACTERISTICS_NX_COMPAT;
 459             break;
 460         case LONG_OPT_RELAY16:
 461             set_exec_mode( MODE_RELAY16 );
 462             break;
 463         case LONG_OPT_RELAY32:
 464             set_exec_mode( MODE_RELAY32 );
 465             break;
 466         case LONG_OPT_SAVE_TEMPS:
 467             save_temps = 1;
 468             break;
 469         case LONG_OPT_SUBSYSTEM:
 470             set_subsystem( optarg, spec );
 471             break;
 472         case LONG_OPT_VERSION:
 473             printf( "winebuild version " PACKAGE_VERSION "\n" );
 474             exit(0);
 475         case '?':
 476             usage(1);
 477             break;
 478         }
 479     }
 480
 481     if (spec->file_name && !strchr( spec->file_name, '.' ))
 482         strcat( spec->file_name, exec_mode == MODE_EXE ? ".exe" : ".dll" );
 483
 484     switch (target_cpu)
 485     {
 486     case CPU_x86:
 487         if (force_pointer_size == 8) target_cpu = CPU_x86_64;
 488         break;
 489     case CPU_x86_64:
 490         if (force_pointer_size == 4) target_cpu = CPU_x86;
 491         break;
 492     default:
 493         if (force_pointer_size == 8)
 494             fatal_error( "Cannot build 64-bit code for this CPU\n" );
 495         break;
 496     }
 497
 498     return &argv[optind];
 499 }
 500
 501
 502 /* load all specified resource files */
 503 static void load_resources( char *argv[], DLLSPEC *spec )
 504 {
 505     int i;
 506     char **ptr, **last;
 507
 508     switch (spec->type)
 509     {
 510     case SPEC_WIN16:
 511         for (i = 0; i < nb_res_files; i++) load_res16_file( res_files[i], spec );
 512         break;
 513
 514     case SPEC_WIN32:
 515         for (i = 0; i < nb_res_files; i++)
 516         {
 517             if (!load_res32_file( res_files[i], spec ))
 518                 fatal_error( "%s is not a valid Win32 resource file\n", res_files[i] );
 519         }
 520
 521         /* load any resource file found in the remaining arguments */
 522         for (ptr = last = argv; *ptr; ptr++)
 523         {
 524             if (!load_res32_file( *ptr, spec ))
 525                 *last++ = *ptr; /* not a resource file, keep it in the list */
 526         }
 527         *last = NULL;
 528         break;
 529     }
 530 }
 531
 532 /* add input files that look like import libs to the import list */
 533 static void load_import_libs( char *argv[] )
 534 {
 535     char **ptr, **last;
 536
 537     for (ptr = last = argv; *ptr; ptr++)
 538     {
 539         if (strendswith( *ptr, ".def" ))
 540             add_import_dll( NULL, *ptr );
 541         else
 542             *last++ = *ptr; /* not an import dll, keep it in the list */
 543     }
 544     *last = NULL;
 545 }
 546
 547 static int parse_input_file( DLLSPEC *spec )
 548 {
 549     FILE *input_file = open_input_file( NULL, spec_file_name );
 550     char *extension = strrchr( spec_file_name, '.' );
 551     int result;
 552
 553     spec->src_name = xstrdup( input_file_name );
 554     if (extension && !strcmp( extension, ".def" ))
 555         result = parse_def_file( input_file, spec );
 556     else
 557         result = parse_spec_file( input_file, spec );
 558     close_input_file( input_file );
 559     return result;
 560 }
 561
 562
 563 /*******************************************************************
 564  *         main
 565  */
 566 int main(int argc, char **argv)
 567 {
 568     DLLSPEC *spec = alloc_dll_spec();
 569
 570 #ifdef SIGHUP
 571     signal( SIGHUP, exit_on_signal );
 572 #endif
 573     signal( SIGTERM, exit_on_signal );
 574     signal( SIGINT, exit_on_signal );
 575
 576     output_file = stdout;
 577     argv = parse_options( argc, argv, spec );
 578
 579     switch(exec_mode)
 580     {
 581     case MODE_DLL:
 582         if (spec->subsystem != IMAGE_SUBSYSTEM_NATIVE)
 583             spec->characteristics |= IMAGE_FILE_DLL;
 584         if (!spec_file_name) fatal_error( "missing .spec file\n" );
 585         if (spec->type == SPEC_WIN32 && spec->main_module)  /* embedded 16-bit module */
 586         {
 587             spec->type = SPEC_WIN16;
 588             load_resources( argv, spec );
 589             if (parse_input_file( spec )) BuildSpec16File( spec );
 590             break;
 591         }
 592         /* fall through */
 593     case MODE_EXE:
 594         load_resources( argv, spec );
 595         load_import_libs( argv );
 596         if (spec_file_name && !parse_input_file( spec )) break;
 597         read_undef_symbols( spec, argv );
 598         switch (spec->type)
 599         {
 600             case SPEC_WIN16:
 601                 output_spec16_file( spec );
 602                 break;
 603             case SPEC_WIN32:
 604                 BuildSpec32File( spec );
 605                 break;
 606             default: assert(0);
 607         }
 608         break;
 609     case MODE_DEF:
 610         if (argv[0]) fatal_error( "file argument '%s' not allowed in this mode\n", argv[0] );
 611         if (spec->type == SPEC_WIN16) fatal_error( "Cannot yet build .def file for 16-bit dlls\n" );
 612         if (!spec_file_name) fatal_error( "missing .spec file\n" );
 613         if (!parse_input_file( spec )) break;
 614         BuildDef32File( spec );
 615         break;
 616     case MODE_RELAY16:
 617         if (argv[0]) fatal_error( "file argument '%s' not allowed in this mode\n", argv[0] );
 618         BuildRelays16();
 619         break;
 620     case MODE_RELAY32:
 621         if (argv[0]) fatal_error( "file argument '%s' not allowed in this mode\n", argv[0] );
 622         BuildRelays32();
 623         break;
 624     default:
 625         usage(1);
 626         break;
 627     }
 628     if (nb_errors) exit(1);
 629     if (output_file_name)
 630     {
 631         if (fclose( output_file ) < 0) fatal_perror( "fclose" );
 632         if (output_file_source_name) assemble_file( output_file_source_name, output_file_name );
 633         output_file_name = NULL;
 634     }
 635     return 0;
 636 }