tools/winebuild/parser.c

   1 /*
   2  * Spec file parser
   3  *
   4  * Copyright 1993 Robert J. Amstadt
   5  * Copyright 1995 Martin von Loewis
   6  * Copyright 1995, 1996, 1997, 2004 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 <ctype.h>
  30 #include <stdarg.h>
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <string.h>
  34
  35 #include "windef.h"
  36 #include "winbase.h"
  37 #include "build.h"
  38
  39 int current_line = 0;
  40
  41 static char ParseBuffer[512];
  42 static char TokenBuffer[512];
  43 static char *ParseNext = ParseBuffer;
  44 static FILE *input_file;
  45
  46 static const char *separator_chars;
  47 static const char *comment_chars;
  48
  49 /* valid characters in ordinal names */
  50 static const char valid_ordname_chars[] = "/$:-_@?abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
  51
  52 static const char * const TypeNames[TYPE_NBTYPES] =
  53 {
  54     "variable",     /* TYPE_VARIABLE */
  55     "pascal",       /* TYPE_PASCAL */
  56     "equate",       /* TYPE_ABS */
  57     "stub",         /* TYPE_STUB */
  58     "stdcall",      /* TYPE_STDCALL */
  59     "cdecl",        /* TYPE_CDECL */
  60     "varargs",      /* TYPE_VARARGS */
  61     "extern"        /* TYPE_EXTERN */
  62 };
  63
  64 static const char * const FlagNames[] =
  65 {
  66     "norelay",     /* FLAG_NORELAY */
  67     "noname",      /* FLAG_NONAME */
  68     "ret16",       /* FLAG_RET16 */
  69     "ret64",       /* FLAG_RET64 */
  70     "register",    /* FLAG_REGISTER */
  71     "private",     /* FLAG_PRIVATE */
  72     "ordinal",     /* FLAG_ORDINAL */
  73     NULL
  74 };
  75
  76 static int IsNumberString(const char *s)
  77 {
  78     while (*s) if (!isdigit(*s++)) return 0;
  79     return 1;
  80 }
  81
  82 static inline int is_token_separator( char ch )
  83 {
  84     return strchr( separator_chars, ch ) != NULL;
  85 }
  86
  87 static inline int is_token_comment( char ch )
  88 {
  89     return strchr( comment_chars, ch ) != NULL;
  90 }
  91
  92 /* get the next line from the input file, or return 0 if at eof */
  93 static int get_next_line(void)
  94 {
  95     ParseNext = ParseBuffer;
  96     current_line++;
  97     return (fgets(ParseBuffer, sizeof(ParseBuffer), input_file) != NULL);
  98 }
  99
 100 static const char * GetToken( int allow_eol )
 101 {
 102     char *p = ParseNext;
 103     char *token = TokenBuffer;
 104
 105     for (;;)
 106     {
 107         /* remove initial white space */
 108         p = ParseNext;
 109         while (isspace(*p)) p++;
 110
 111         if (*p == '\\' && p[1] == '\n')  /* line continuation */
 112         {
 113             if (!get_next_line())
 114             {
 115                 if (!allow_eol) error( "Unexpected end of file\n" );
 116                 return NULL;
 117             }
 118         }
 119         else break;
 120     }
 121
 122     if ((*p == '\0') || is_token_comment(*p))
 123     {
 124         if (!allow_eol) error( "Declaration not terminated properly\n" );
 125         return NULL;
 126     }
 127
 128     /*
 129      * Find end of token.
 130      */
 131     if (is_token_separator(*p))
 132     {
 133         /* a separator is always a complete token */
 134         *token++ = *p++;
 135     }
 136     else while (*p != '\0' && !is_token_separator(*p) && !isspace(*p))
 137     {
 138         if (*p == '\\') p++;
 139         if (*p) *token++ = *p++;
 140     }
 141     *token = '\0';
 142     ParseNext = p;
 143     return TokenBuffer;
 144 }
 145
 146
 147 static ORDDEF *add_entry_point( DLLSPEC *spec )
 148 {
 149     if (spec->nb_entry_points == spec->alloc_entry_points)
 150     {
 151         spec->alloc_entry_points += 128;
 152         spec->entry_points = xrealloc( spec->entry_points,
 153                                        spec->alloc_entry_points * sizeof(*spec->entry_points) );
 154     }
 155     return &spec->entry_points[spec->nb_entry_points++];
 156 }
 157
 158 /*******************************************************************
 159  *         parse_spec_variable
 160  *
 161  * Parse a variable definition in a .spec file.
 162  */
 163 static int parse_spec_variable( ORDDEF *odp, DLLSPEC *spec )
 164 {
 165     char *endptr;
 166     int *value_array;
 167     int n_values;
 168     int value_array_size;
 169     const char *token;
 170
 171     if (spec->type == SPEC_WIN32)
 172     {
 173         error( "'variable' not supported in Win32, use 'extern' instead\n" );
 174         return 0;
 175     }
 176
 177     if (!(token = GetToken(0))) return 0;
 178     if (*token != '(')
 179     {
 180         error( "Expected '(' got '%s'\n", token );
 181         return 0;
 182     }
 183
 184     n_values = 0;
 185     value_array_size = 25;
 186     value_array = xmalloc(sizeof(*value_array) * value_array_size);
 187
 188     for (;;)
 189     {
 190         if (!(token = GetToken(0)))
 191         {
 192             free( value_array );
 193             return 0;
 194         }
 195         if (*token == ')')
 196             break;
 197
 198         value_array[n_values++] = strtol(token, &endptr, 0);
 199         if (n_values == value_array_size)
 200         {
 201             value_array_size += 25;
 202             value_array = xrealloc(value_array,
 203                                    sizeof(*value_array) * value_array_size);
 204         }
 205
 206         if (endptr == NULL || *endptr != '\0')
 207         {
 208             error( "Expected number value, got '%s'\n", token );
 209             free( value_array );
 210             return 0;
 211         }
 212     }
 213
 214     odp->u.var.n_values = n_values;
 215     odp->u.var.values = xrealloc(value_array, sizeof(*value_array) * n_values);
 216     return 1;
 217 }
 218
 219
 220 /*******************************************************************
 221  *         parse_spec_export
 222  *
 223  * Parse an exported function definition in a .spec file.
 224  */
 225 static int parse_spec_export( ORDDEF *odp, DLLSPEC *spec )
 226 {
 227     const char *token;
 228     unsigned int i;
 229
 230     switch(spec->type)
 231     {
 232     case SPEC_WIN16:
 233         if (odp->type == TYPE_STDCALL)
 234         {
 235             error( "'stdcall' not supported for Win16\n" );
 236             return 0;
 237         }
 238         break;
 239     case SPEC_WIN32:
 240         if (odp->type == TYPE_PASCAL)
 241         {
 242             error( "'pascal' not supported for Win32\n" );
 243             return 0;
 244         }
 245         break;
 246     default:
 247         break;
 248     }
 249
 250     if (!(token = GetToken(0))) return 0;
 251     if (*token != '(')
 252     {
 253         error( "Expected '(' got '%s'\n", token );
 254         return 0;
 255     }
 256
 257     for (i = 0; i < sizeof(odp->u.func.arg_types); i++)
 258     {
 259         if (!(token = GetToken(0))) return 0;
 260         if (*token == ')')
 261             break;
 262
 263         if (!strcmp(token, "word"))
 264             odp->u.func.arg_types[i] = 'w';
 265         else if (!strcmp(token, "s_word"))
 266             odp->u.func.arg_types[i] = 's';
 267         else if (!strcmp(token, "long") || !strcmp(token, "segptr"))
 268             odp->u.func.arg_types[i] = 'l';
 269         else if (!strcmp(token, "ptr"))
 270             odp->u.func.arg_types[i] = 'p';
 271         else if (!strcmp(token, "str"))
 272             odp->u.func.arg_types[i] = 't';
 273         else if (!strcmp(token, "wstr"))
 274             odp->u.func.arg_types[i] = 'W';
 275         else if (!strcmp(token, "segstr"))
 276             odp->u.func.arg_types[i] = 'T';
 277         else if (!strcmp(token, "double"))
 278         {
 279             odp->u.func.arg_types[i++] = 'l';
 280             if (get_ptr_size() == 4 && i < sizeof(odp->u.func.arg_types))
 281                 odp->u.func.arg_types[i] = 'l';
 282         }
 283         else
 284         {
 285             error( "Unknown argument type '%s'\n", token );
 286             return 0;
 287         }
 288
 289         if (spec->type == SPEC_WIN32)
 290         {
 291             if (strcmp(token, "long") &&
 292                 strcmp(token, "ptr") &&
 293                 strcmp(token, "str") &&
 294                 strcmp(token, "wstr") &&
 295                 strcmp(token, "double"))
 296             {
 297                 error( "Type '%s' not supported for Win32\n", token );
 298                 return 0;
 299             }
 300         }
 301     }
 302     if ((*token != ')') || (i >= sizeof(odp->u.func.arg_types)))
 303     {
 304         error( "Too many arguments\n" );
 305         return 0;
 306     }
 307
 308     odp->u.func.arg_types[i] = '\0';
 309     if (odp->type == TYPE_VARARGS)
 310         odp->flags |= FLAG_NORELAY;  /* no relay debug possible for varags entry point */
 311
 312     if (!(token = GetToken(1)))
 313     {
 314         if (!strcmp( odp->name, "@" ))
 315         {
 316             error( "Missing handler name for anonymous function\n" );
 317             return 0;
 318         }
 319         odp->link_name = xstrdup( odp->name );
 320     }
 321     else
 322     {
 323         odp->link_name = xstrdup( token );
 324         if (strchr( odp->link_name, '.' ))
 325         {
 326             if (spec->type == SPEC_WIN16)
 327             {
 328                 error( "Forwarded functions not supported for Win16\n" );
 329                 return 0;
 330             }
 331             odp->flags |= FLAG_FORWARD;
 332         }
 333     }
 334     return 1;
 335 }
 336
 337
 338 /*******************************************************************
 339  *         parse_spec_equate
 340  *
 341  * Parse an 'equate' definition in a .spec file.
 342  */
 343 static int parse_spec_equate( ORDDEF *odp, DLLSPEC *spec )
 344 {
 345     char *endptr;
 346     int value;
 347     const char *token;
 348
 349     if (spec->type == SPEC_WIN32)
 350     {
 351         error( "'equate' not supported for Win32\n" );
 352         return 0;
 353     }
 354     if (!(token = GetToken(0))) return 0;
 355     value = strtol(token, &endptr, 0);
 356     if (endptr == NULL || *endptr != '\0')
 357     {
 358         error( "Expected number value, got '%s'\n", token );
 359         return 0;
 360     }
 361     if (value < -0x8000 || value > 0xffff)
 362     {
 363         error( "Value %d for absolute symbol doesn't fit in 16 bits\n", value );
 364         value = 0;
 365     }
 366     odp->u.abs.value = value;
 367     return 1;
 368 }
 369
 370
 371 /*******************************************************************
 372  *         parse_spec_stub
 373  *
 374  * Parse a 'stub' definition in a .spec file
 375  */
 376 static int parse_spec_stub( ORDDEF *odp, DLLSPEC *spec )
 377 {
 378     odp->u.func.arg_types[0] = '\0';
 379     odp->link_name = xstrdup("");
 380     odp->flags |= FLAG_CPU(CPU_x86); /* don't bother generating stubs for Winelib */
 381     return 1;
 382 }
 383
 384
 385 /*******************************************************************
 386  *         parse_spec_extern
 387  *
 388  * Parse an 'extern' definition in a .spec file.
 389  */
 390 static int parse_spec_extern( ORDDEF *odp, DLLSPEC *spec )
 391 {
 392     const char *token;
 393
 394     if (spec->type == SPEC_WIN16)
 395     {
 396         error( "'extern' not supported for Win16, use 'variable' instead\n" );
 397         return 0;
 398     }
 399     if (!(token = GetToken(1)))
 400     {
 401         if (!strcmp( odp->name, "@" ))
 402         {
 403             error( "Missing handler name for anonymous extern\n" );
 404             return 0;
 405         }
 406         odp->link_name = xstrdup( odp->name );
 407     }
 408     else
 409     {
 410         odp->link_name = xstrdup( token );
 411         if (strchr( odp->link_name, '.' )) odp->flags |= FLAG_FORWARD;
 412     }
 413     return 1;
 414 }
 415
 416
 417 /*******************************************************************
 418  *         parse_spec_flags
 419  *
 420  * Parse the optional flags for an entry point in a .spec file.
 421  */
 422 static const char *parse_spec_flags( ORDDEF *odp )
 423 {
 424     unsigned int i;
 425     const char *token;
 426
 427     do
 428     {
 429         if (!(token = GetToken(0))) break;
 430         if (!strncmp( token, "arch=", 5))
 431         {
 432             char *args = xstrdup( token + 5 );
 433             char *cpu_name = strtok( args, "," );
 434             while (cpu_name)
 435             {
 436                 enum target_cpu cpu = get_cpu_from_name( cpu_name );
 437                 if (cpu == -1)
 438                 {
 439                     error( "Unknown architecture '%s'\n", cpu_name );
 440                     return NULL;
 441                 }
 442                 odp->flags |= FLAG_CPU( cpu );
 443                 cpu_name = strtok( NULL, "," );
 444             }
 445             free( args );
 446         }
 447         else if (!strcmp( token, "i386" ))  /* backwards compatibility */
 448         {
 449             odp->flags |= FLAG_CPU(CPU_x86);
 450         }
 451         else
 452         {
 453             for (i = 0; FlagNames[i]; i++)
 454                 if (!strcmp( FlagNames[i], token )) break;
 455             if (!FlagNames[i])
 456             {
 457                 error( "Unknown flag '%s'\n", token );
 458                 return NULL;
 459             }
 460             odp->flags |= 1 << i;
 461         }
 462         token = GetToken(0);
 463     } while (token && *token == '-');
 464
 465     return token;
 466 }
 467
 468
 469 /*******************************************************************
 470  *         parse_spec_ordinal
 471  *
 472  * Parse an ordinal definition in a .spec file.
 473  */
 474 static int parse_spec_ordinal( int ordinal, DLLSPEC *spec )
 475 {
 476     const char *token;
 477     size_t len;
 478
 479     ORDDEF *odp = add_entry_point( spec );
 480     memset( odp, 0, sizeof(*odp) );
 481
 482     if (!(token = GetToken(0))) goto error;
 483
 484     for (odp->type = 0; odp->type < TYPE_NBTYPES; odp->type++)
 485         if (TypeNames[odp->type] && !strcmp( token, TypeNames[odp->type] ))
 486             break;
 487
 488     if (odp->type >= TYPE_NBTYPES)
 489     {
 490         error( "Expected type after ordinal, found '%s' instead\n", token );
 491         goto error;
 492     }
 493
 494     if (!(token = GetToken(0))) goto error;
 495     if (*token == '-' && !(token = parse_spec_flags( odp ))) goto error;
 496
 497     odp->name = xstrdup( token );
 498     odp->lineno = current_line;
 499     odp->ordinal = ordinal;
 500
 501     len = strspn( odp->name, valid_ordname_chars );
 502     if (len < strlen( odp->name ))
 503     {
 504         error( "Character '%c' is not allowed in exported name '%s'\n", odp->name[len], odp->name );
 505         goto error;
 506     }
 507
 508     switch(odp->type)
 509     {
 510     case TYPE_VARIABLE:
 511         if (!parse_spec_variable( odp, spec )) goto error;
 512         break;
 513     case TYPE_PASCAL:
 514     case TYPE_STDCALL:
 515     case TYPE_VARARGS:
 516     case TYPE_CDECL:
 517         if (!parse_spec_export( odp, spec )) goto error;
 518         break;
 519     case TYPE_ABS:
 520         if (!parse_spec_equate( odp, spec )) goto error;
 521         break;
 522     case TYPE_STUB:
 523         if (!parse_spec_stub( odp, spec )) goto error;
 524         break;
 525     case TYPE_EXTERN:
 526         if (!parse_spec_extern( odp, spec )) goto error;
 527         break;
 528     default:
 529         assert( 0 );
 530     }
 531
 532     if ((odp->flags & FLAG_CPU_MASK) && !(odp->flags & FLAG_CPU(target_cpu)))
 533     {
 534         /* ignore this entry point */
 535         spec->nb_entry_points--;
 536         return 1;
 537     }
 538
 539     if (ordinal != -1)
 540     {
 541         if (!ordinal)
 542         {
 543             error( "Ordinal 0 is not valid\n" );
 544             goto error;
 545         }
 546         if (ordinal >= MAX_ORDINALS)
 547         {
 548             error( "Ordinal number %d too large\n", ordinal );
 549             goto error;
 550         }
 551         if (ordinal > spec->limit) spec->limit = ordinal;
 552         if (ordinal < spec->base) spec->base = ordinal;
 553         odp->ordinal = ordinal;
 554     }
 555
 556     if (odp->type == TYPE_STDCALL && !(odp->flags & FLAG_PRIVATE))
 557     {
 558         if (!strcmp( odp->name, "DllRegisterServer" ) ||
 559             !strcmp( odp->name, "DllUnregisterServer" ) ||
 560             !strcmp( odp->name, "DllGetClassObject" ) ||
 561             !strcmp( odp->name, "DllGetVersion" ) ||
 562             !strcmp( odp->name, "DllInstall" ) ||
 563             !strcmp( odp->name, "DllCanUnloadNow" ))
 564         {
 565             warning( "Function %s should be marked private\n", odp->name );
 566             if (strcmp( odp->name, odp->link_name ))
 567                 warning( "Function %s should not use a different internal name (%s)\n",
 568                          odp->name, odp->link_name );
 569         }
 570     }
 571
 572     if (!strcmp( odp->name, "@" ) || odp->flags & (FLAG_NONAME | FLAG_ORDINAL))
 573     {
 574         if (ordinal == -1)
 575         {
 576             if (!strcmp( odp->name, "@" ))
 577                 error( "Nameless function needs an explicit ordinal number\n" );
 578             else
 579                 error( "Function imported by ordinal needs an explicit ordinal number\n" );
 580             goto error;
 581         }
 582         if (spec->type != SPEC_WIN32)
 583         {
 584             error( "Nameless functions not supported for Win16\n" );
 585             goto error;
 586         }
 587         if (!strcmp( odp->name, "@" ))
 588         {
 589             free( odp->name );
 590             odp->name = NULL;
 591         }
 592         else if (!(odp->flags & FLAG_ORDINAL))  /* -ordinal only affects the import library */
 593         {
 594             odp->export_name = odp->name;
 595             odp->name = NULL;
 596         }
 597     }
 598     return 1;
 599
 600 error:
 601     spec->nb_entry_points--;
 602     free( odp->name );
 603     return 0;
 604 }
 605
 606
 607 static int name_compare( const void *ptr1, const void *ptr2 )
 608 {
 609     const ORDDEF *odp1 = *(const ORDDEF * const *)ptr1;
 610     const ORDDEF *odp2 = *(const ORDDEF * const *)ptr2;
 611     const char *name1 = odp1->name ? odp1->name : odp1->export_name;
 612     const char *name2 = odp2->name ? odp2->name : odp2->export_name;
 613     return strcmp( name1, name2 );
 614 }
 615
 616 /*******************************************************************
 617  *         assign_names
 618  *
 619  * Build the name array and catch duplicates.
 620  */
 621 static void assign_names( DLLSPEC *spec )
 622 {
 623     int i, j, nb_exp_names = 0;
 624     ORDDEF **all_names;
 625
 626     spec->nb_names = 0;
 627     for (i = 0; i < spec->nb_entry_points; i++)
 628         if (spec->entry_points[i].name) spec->nb_names++;
 629         else if (spec->entry_points[i].export_name) nb_exp_names++;
 630
 631     if (!spec->nb_names && !nb_exp_names) return;
 632
 633     /* check for duplicates */
 634
 635     all_names = xmalloc( (spec->nb_names + nb_exp_names) * sizeof(all_names[0]) );
 636     for (i = j = 0; i < spec->nb_entry_points; i++)
 637         if (spec->entry_points[i].name || spec->entry_points[i].export_name)
 638             all_names[j++] = &spec->entry_points[i];
 639
 640     qsort( all_names, j, sizeof(all_names[0]), name_compare );
 641
 642     for (i = 0; i < j - 1; i++)
 643     {
 644         const char *name1 = all_names[i]->name ? all_names[i]->name : all_names[i]->export_name;
 645         const char *name2 = all_names[i+1]->name ? all_names[i+1]->name : all_names[i+1]->export_name;
 646         if (!strcmp( name1, name2 ))
 647         {
 648             current_line = max( all_names[i]->lineno, all_names[i+1]->lineno );
 649             error( "'%s' redefined\n%s:%d: First defined here\n",
 650                    name1, input_file_name,
 651                    min( all_names[i]->lineno, all_names[i+1]->lineno ) );
 652         }
 653     }
 654     free( all_names );
 655
 656     if (spec->nb_names)
 657     {
 658         spec->names = xmalloc( spec->nb_names * sizeof(spec->names[0]) );
 659         for (i = j = 0; i < spec->nb_entry_points; i++)
 660             if (spec->entry_points[i].name) spec->names[j++] = &spec->entry_points[i];
 661
 662         /* sort the list of names */
 663         qsort( spec->names, spec->nb_names, sizeof(spec->names[0]), name_compare );
 664     }
 665 }
 666
 667 /*******************************************************************
 668  *         assign_ordinals
 669  *
 670  * Build the ordinal array.
 671  */
 672 static void assign_ordinals( DLLSPEC *spec )
 673 {
 674     int i, count, ordinal;
 675
 676     /* start assigning from base, or from 1 if no ordinal defined yet */
 677
 678     spec->base = MAX_ORDINALS;
 679     spec->limit = 0;
 680     for (i = 0; i < spec->nb_entry_points; i++)
 681     {
 682         ordinal = spec->entry_points[i].ordinal;
 683         if (ordinal == -1) continue;
 684         if (ordinal > spec->limit) spec->limit = ordinal;
 685         if (ordinal < spec->base) spec->base = ordinal;
 686     }
 687     if (spec->base == MAX_ORDINALS) spec->base = 1;
 688     if (spec->limit < spec->base) spec->limit = spec->base;
 689
 690     count = max( spec->limit + 1, spec->base + spec->nb_entry_points );
 691     spec->ordinals = xmalloc( count * sizeof(spec->ordinals[0]) );
 692     memset( spec->ordinals, 0, count * sizeof(spec->ordinals[0]) );
 693
 694     /* fill in all explicitly specified ordinals */
 695     for (i = 0; i < spec->nb_entry_points; i++)
 696     {
 697         ordinal = spec->entry_points[i].ordinal;
 698         if (ordinal == -1) continue;
 699         if (spec->ordinals[ordinal])
 700         {
 701             current_line = max( spec->entry_points[i].lineno, spec->ordinals[ordinal]->lineno );
 702             error( "ordinal %d redefined\n%s:%d: First defined here\n",
 703                    ordinal, input_file_name,
 704                    min( spec->entry_points[i].lineno, spec->ordinals[ordinal]->lineno ) );
 705         }
 706         else spec->ordinals[ordinal] = &spec->entry_points[i];
 707     }
 708
 709     /* now assign ordinals to the rest */
 710     for (i = 0, ordinal = spec->base; i < spec->nb_entry_points; i++)
 711     {
 712         if (spec->entry_points[i].ordinal != -1) continue;
 713         while (spec->ordinals[ordinal]) ordinal++;
 714         if (ordinal >= MAX_ORDINALS)
 715         {
 716             current_line = spec->entry_points[i].lineno;
 717             fatal_error( "Too many functions defined (max %d)\n", MAX_ORDINALS );
 718         }
 719         spec->entry_points[i].ordinal = ordinal;
 720         spec->ordinals[ordinal] = &spec->entry_points[i];
 721     }
 722     if (ordinal > spec->limit) spec->limit = ordinal;
 723 }
 724
 725
 726 /*******************************************************************
 727  *         parse_spec_file
 728  *
 729  * Parse a .spec file.
 730  */
 731 int parse_spec_file( FILE *file, DLLSPEC *spec )
 732 {
 733     const char *token;
 734
 735     input_file = file;
 736     current_line = 0;
 737
 738     comment_chars = "#;";
 739     separator_chars = "()-";
 740
 741     while (get_next_line())
 742     {
 743         if (!(token = GetToken(1))) continue;
 744         if (strcmp(token, "@") == 0)
 745         {
 746             if (spec->type != SPEC_WIN32)
 747             {
 748                 error( "'@' ordinals not supported for Win16\n" );
 749                 continue;
 750             }
 751             if (!parse_spec_ordinal( -1, spec )) continue;
 752         }
 753         else if (IsNumberString(token))
 754         {
 755             if (!parse_spec_ordinal( atoi(token), spec )) continue;
 756         }
 757         else
 758         {
 759             error( "Expected ordinal declaration, got '%s'\n", token );
 760             continue;
 761         }
 762         if ((token = GetToken(1))) error( "Syntax error near '%s'\n", token );
 763     }
 764
 765     current_line = 0;  /* no longer parsing the input file */
 766     assign_names( spec );
 767     assign_ordinals( spec );
 768     return !nb_errors;
 769 }
 770
 771
 772 /*******************************************************************
 773  *         parse_def_library
 774  *
 775  * Parse a LIBRARY declaration in a .def file.
 776  */
 777 static int parse_def_library( DLLSPEC *spec )
 778 {
 779     const char *token = GetToken(1);
 780
 781     if (!token) return 1;
 782     if (strcmp( token, "BASE" ))
 783     {
 784         free( spec->file_name );
 785         spec->file_name = xstrdup( token );
 786         if (!(token = GetToken(1))) return 1;
 787     }
 788     if (strcmp( token, "BASE" ))
 789     {
 790         error( "Expected library name or BASE= declaration, got '%s'\n", token );
 791         return 0;
 792     }
 793     if (!(token = GetToken(0))) return 0;
 794     if (strcmp( token, "=" ))
 795     {
 796         error( "Expected '=' after BASE, got '%s'\n", token );
 797         return 0;
 798     }
 799     if (!(token = GetToken(0))) return 0;
 800     /* FIXME: do something with base address */
 801
 802     return 1;
 803 }
 804
 805
 806 /*******************************************************************
 807  *         parse_def_stack_heap_size
 808  *
 809  * Parse a STACKSIZE or HEAPSIZE declaration in a .def file.
 810  */
 811 static int parse_def_stack_heap_size( int is_stack, DLLSPEC *spec )
 812 {
 813     const char *token = GetToken(0);
 814     char *end;
 815     unsigned long size;
 816
 817     if (!token) return 0;
 818     size = strtoul( token, &end, 0 );
 819     if (*end)
 820     {
 821         error( "Invalid number '%s'\n", token );
 822         return 0;
 823     }
 824     if (is_stack) spec->stack_size = size / 1024;
 825     else spec->heap_size = size / 1024;
 826     if (!(token = GetToken(1))) return 1;
 827     if (strcmp( token, "," ))
 828     {
 829         error( "Expected ',' after size, got '%s'\n", token );
 830         return 0;
 831     }
 832     if (!(token = GetToken(0))) return 0;
 833     /* FIXME: do something with reserve size */
 834     return 1;
 835 }
 836
 837
 838 /*******************************************************************
 839  *         parse_def_export
 840  *
 841  * Parse an export declaration in a .def file.
 842  */
 843 static int parse_def_export( char *name, DLLSPEC *spec )
 844 {
 845     int i, args;
 846     const char *token = GetToken(1);
 847
 848     ORDDEF *odp = add_entry_point( spec );
 849     memset( odp, 0, sizeof(*odp) );
 850
 851     odp->lineno = current_line;
 852     odp->ordinal = -1;
 853     odp->name = name;
 854     args = remove_stdcall_decoration( odp->name );
 855     if (args == -1) odp->type = TYPE_CDECL;
 856     else
 857     {
 858         odp->type = TYPE_STDCALL;
 859         args /= get_ptr_size();
 860         if (args >= sizeof(odp->u.func.arg_types))
 861         {
 862             error( "Too many arguments in stdcall function '%s'\n", odp->name );
 863             return 0;
 864         }
 865         for (i = 0; i < args; i++) odp->u.func.arg_types[i] = 'l';
 866     }
 867
 868     /* check for optional internal name */
 869
 870     if (token && !strcmp( token, "=" ))
 871     {
 872         if (!(token = GetToken(0))) goto error;
 873         odp->link_name = xstrdup( token );
 874         remove_stdcall_decoration( odp->link_name );
 875         token = GetToken(1);
 876     }
 877     else
 878     {
 879       odp->link_name = xstrdup( name );
 880     }
 881
 882     /* check for optional ordinal */
 883
 884     if (token && token[0] == '@')
 885     {
 886         int ordinal;
 887
 888         if (!IsNumberString( token+1 ))
 889         {
 890             error( "Expected number after '@', got '%s'\n", token+1 );
 891             goto error;
 892         }
 893         ordinal = atoi( token+1 );
 894         if (!ordinal)
 895         {
 896             error( "Ordinal 0 is not valid\n" );
 897             goto error;
 898         }
 899         if (ordinal >= MAX_ORDINALS)
 900         {
 901             error( "Ordinal number %d too large\n", ordinal );
 902             goto error;
 903         }
 904         odp->ordinal = ordinal;
 905         token = GetToken(1);
 906     }
 907
 908     /* check for other optional keywords */
 909
 910     if (token && !strcmp( token, "NONAME" ))
 911     {
 912         if (odp->ordinal == -1)
 913         {
 914             error( "NONAME requires an ordinal\n" );
 915             goto error;
 916         }
 917         odp->export_name = odp->name;
 918         odp->name = NULL;
 919         odp->flags |= FLAG_NONAME;
 920         token = GetToken(1);
 921     }
 922     if (token && !strcmp( token, "PRIVATE" ))
 923     {
 924         odp->flags |= FLAG_PRIVATE;
 925         token = GetToken(1);
 926     }
 927     if (token && !strcmp( token, "DATA" ))
 928     {
 929         odp->type = TYPE_EXTERN;
 930         token = GetToken(1);
 931     }
 932     if (token)
 933     {
 934         error( "Garbage text '%s' found at end of export declaration\n", token );
 935         goto error;
 936     }
 937     return 1;
 938
 939 error:
 940     spec->nb_entry_points--;
 941     free( odp->name );
 942     return 0;
 943 }
 944
 945
 946 /*******************************************************************
 947  *         parse_def_file
 948  *
 949  * Parse a .def file.
 950  */
 951 int parse_def_file( FILE *file, DLLSPEC *spec )
 952 {
 953     const char *token;
 954     int in_exports = 0;
 955
 956     input_file = file;
 957     current_line = 0;
 958
 959     comment_chars = ";";
 960     separator_chars = ",=";
 961
 962     while (get_next_line())
 963     {
 964         if (!(token = GetToken(1))) continue;
 965
 966         if (!strcmp( token, "LIBRARY" ) || !strcmp( token, "NAME" ))
 967         {
 968             if (!parse_def_library( spec )) continue;
 969             goto end_of_line;
 970         }
 971         else if (!strcmp( token, "STACKSIZE" ))
 972         {
 973             if (!parse_def_stack_heap_size( 1, spec )) continue;
 974             goto end_of_line;
 975         }
 976         else if (!strcmp( token, "HEAPSIZE" ))
 977         {
 978             if (!parse_def_stack_heap_size( 0, spec )) continue;
 979             goto end_of_line;
 980         }
 981         else if (!strcmp( token, "EXPORTS" ))
 982         {
 983             in_exports = 1;
 984             if (!(token = GetToken(1))) continue;
 985         }
 986         else if (!strcmp( token, "IMPORTS" ))
 987         {
 988             in_exports = 0;
 989             if (!(token = GetToken(1))) continue;
 990         }
 991         else if (!strcmp( token, "SECTIONS" ))
 992         {
 993             in_exports = 0;
 994             if (!(token = GetToken(1))) continue;
 995         }
 996
 997         if (!in_exports) continue;  /* ignore this line */
 998         if (!parse_def_export( xstrdup(token), spec )) continue;
 999
1000     end_of_line:
1001         if ((token = GetToken(1))) error( "Syntax error near '%s'\n", token );
1002     }
1003
1004     current_line = 0;  /* no longer parsing the input file */
1005     assign_names( spec );
1006     assign_ordinals( spec );
1007     return !nb_errors;
1008 }