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 "build.h"
  36
  37 int current_line = 0;
  38
  39 static char ParseBuffer[512];
  40 static char TokenBuffer[512];
  41 static char *ParseNext = ParseBuffer;
  42 static FILE *input_file;
  43
  44 static const char *separator_chars;
  45 static const char *comment_chars;
  46
  47 /* valid characters in ordinal names */
  48 static const char valid_ordname_chars[] = "/$:-_@?<>abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
  49
  50 static const char * const TypeNames[TYPE_NBTYPES] =
  51 {
  52     "variable",     /* TYPE_VARIABLE */
  53     "pascal",       /* TYPE_PASCAL */
  54     "equate",       /* TYPE_ABS */
  55     "stub",         /* TYPE_STUB */
  56     "stdcall",      /* TYPE_STDCALL */
  57     "cdecl",        /* TYPE_CDECL */
  58     "varargs",      /* TYPE_VARARGS */
  59     "thiscall",     /* TYPE_THISCALL */
  60     "extern"        /* TYPE_EXTERN */
  61 };
  62
  63 static const char * const FlagNames[] =
  64 {
  65     "norelay",     /* FLAG_NORELAY */
  66     "noname",      /* FLAG_NONAME */
  67     "ret16",       /* FLAG_RET16 */
  68     "ret64",       /* FLAG_RET64 */
  69     "register",    /* FLAG_REGISTER */
  70     "private",     /* FLAG_PRIVATE */
  71     "ordinal",     /* FLAG_ORDINAL */
  72     NULL
  73 };
  74
  75 static const char * const ArgNames[ARG_MAXARG + 1] =
  76 {
  77     "word",    /* ARG_WORD */
  78     "s_word",  /* ARG_SWORD */
  79     "segptr",  /* ARG_SEGPTR */
  80     "segstr",  /* ARG_SEGSTR */
  81     "long",    /* ARG_LONG */
  82     "ptr",     /* ARG_PTR */
  83     "str",     /* ARG_STR */
  84     "wstr",    /* ARG_WSTR */
  85     "int64",   /* ARG_INT64 */
  86     "int128",  /* ARG_INT128 */
  87     "float",   /* ARG_FLOAT */
  88     "double"   /* ARG_DOUBLE */
  89 };
  90
  91 static int IsNumberString(const char *s)
  92 {
  93     while (*s) if (!isdigit(*s++)) return 0;
  94     return 1;
  95 }
  96
  97 static inline int is_token_separator( char ch )
  98 {
  99     return strchr( separator_chars, ch ) != NULL;
 100 }
 101
 102 static inline int is_token_comment( char ch )
 103 {
 104     return strchr( comment_chars, ch ) != NULL;
 105 }
 106
 107 /* get the next line from the input file, or return 0 if at eof */
 108 static int get_next_line(void)
 109 {
 110     ParseNext = ParseBuffer;
 111     current_line++;
 112     return (fgets(ParseBuffer, sizeof(ParseBuffer), input_file) != NULL);
 113 }
 114
 115 static const char * GetToken( int allow_eol )
 116 {
 117     char *p;
 118     char *token = TokenBuffer;
 119
 120     for (;;)
 121     {
 122         /* remove initial white space */
 123         p = ParseNext;
 124         while (isspace(*p)) p++;
 125
 126         if (*p == '\\' && p[1] == '\n')  /* line continuation */
 127         {
 128             if (!get_next_line())
 129             {
 130                 if (!allow_eol) error( "Unexpected end of file\n" );
 131                 return NULL;
 132             }
 133         }
 134         else break;
 135     }
 136
 137     if ((*p == '\0') || is_token_comment(*p))
 138     {
 139         if (!allow_eol) error( "Declaration not terminated properly\n" );
 140         return NULL;
 141     }
 142
 143     /*
 144      * Find end of token.
 145      */
 146     if (is_token_separator(*p))
 147     {
 148         /* a separator is always a complete token */
 149         *token++ = *p++;
 150     }
 151     else while (*p != '\0' && !is_token_separator(*p) && !isspace(*p))
 152     {
 153         if (*p == '\\') p++;
 154         if (*p) *token++ = *p++;
 155     }
 156     *token = '\0';
 157     ParseNext = p;
 158     return TokenBuffer;
 159 }
 160
 161
 162 static ORDDEF *add_entry_point( DLLSPEC *spec )
 163 {
 164     ORDDEF *ret;
 165
 166     if (spec->nb_entry_points == spec->alloc_entry_points)
 167     {
 168         spec->alloc_entry_points += 128;
 169         spec->entry_points = xrealloc( spec->entry_points,
 170                                        spec->alloc_entry_points * sizeof(*spec->entry_points) );
 171     }
 172     ret = &spec->entry_points[spec->nb_entry_points++];
 173     memset( ret, 0, sizeof(*ret) );
 174     return ret;
 175 }
 176
 177 /*******************************************************************
 178  *         parse_spec_variable
 179  *
 180  * Parse a variable definition in a .spec file.
 181  */
 182 static int parse_spec_variable( ORDDEF *odp, DLLSPEC *spec )
 183 {
 184     char *endptr;
 185     unsigned int *value_array;
 186     int n_values;
 187     int value_array_size;
 188     const char *token;
 189
 190     if (spec->type == SPEC_WIN32)
 191     {
 192         error( "'variable' not supported in Win32, use 'extern' instead\n" );
 193         return 0;
 194     }
 195
 196     if (!(token = GetToken(0))) return 0;
 197     if (*token != '(')
 198     {
 199         error( "Expected '(' got '%s'\n", token );
 200         return 0;
 201     }
 202
 203     n_values = 0;
 204     value_array_size = 25;
 205     value_array = xmalloc(sizeof(*value_array) * value_array_size);
 206
 207     for (;;)
 208     {
 209         if (!(token = GetToken(0)))
 210         {
 211             free( value_array );
 212             return 0;
 213         }
 214         if (*token == ')')
 215             break;
 216
 217         value_array[n_values++] = strtoul(token, &endptr, 0);
 218         if (n_values == value_array_size)
 219         {
 220             value_array_size += 25;
 221             value_array = xrealloc(value_array,
 222                                    sizeof(*value_array) * value_array_size);
 223         }
 224
 225         if (endptr == NULL || *endptr != '\0')
 226         {
 227             error( "Expected number value, got '%s'\n", token );
 228             free( value_array );
 229             return 0;
 230         }
 231     }
 232
 233     odp->u.var.n_values = n_values;
 234     odp->u.var.values = xrealloc(value_array, sizeof(*value_array) * n_values);
 235     return 1;
 236 }
 237
 238
 239 /*******************************************************************
 240  *         parse_spec_arguments
 241  *
 242  * Parse the arguments of an entry point.
 243  */
 244 static int parse_spec_arguments( ORDDEF *odp, DLLSPEC *spec, int optional )
 245 {
 246     const char *token;
 247     unsigned int i, arg;
 248     int is_win32 = (spec->type == SPEC_WIN32) || (odp->flags & FLAG_EXPORT32);
 249
 250     if (!(token = GetToken( optional ))) return optional;
 251     if (*token != '(')
 252     {
 253         error( "Expected '(' got '%s'\n", token );
 254         return 0;
 255     }
 256
 257     odp->u.func.nb_args = 0;
 258     for (i = 0; i < MAX_ARGUMENTS; i++)
 259     {
 260         if (!(token = GetToken(0))) return 0;
 261         if (*token == ')')
 262             break;
 263
 264         for (arg = 0; arg <= ARG_MAXARG; arg++)
 265             if (!strcmp( ArgNames[arg], token )) break;
 266
 267         if (arg > ARG_MAXARG)
 268         {
 269             error( "Unknown argument type '%s'\n", token );
 270             return 0;
 271         }
 272         if (is_win32) switch (arg)
 273         {
 274         case ARG_WORD:
 275         case ARG_SWORD:
 276         case ARG_SEGPTR:
 277         case ARG_SEGSTR:
 278             error( "Argument type '%s' only allowed for Win16\n", token );
 279             return 0;
 280         }
 281         odp->u.func.args[i] = arg;
 282     }
 283     if (*token != ')')
 284     {
 285         error( "Too many arguments\n" );
 286         return 0;
 287     }
 288
 289     odp->u.func.nb_args = i;
 290     if (odp->type == TYPE_THISCALL && (!i || odp->u.func.args[0] != ARG_PTR))
 291     {
 292         error( "First argument of a thiscall function must be a pointer\n" );
 293         return 0;
 294     }
 295     return 1;
 296 }
 297
 298
 299 /*******************************************************************
 300  *         parse_spec_export
 301  *
 302  * Parse an exported function definition in a .spec file.
 303  */
 304 static int parse_spec_export( ORDDEF *odp, DLLSPEC *spec )
 305 {
 306     const char *token;
 307     int is_win32 = (spec->type == SPEC_WIN32) || (odp->flags & FLAG_EXPORT32);
 308
 309     if (!is_win32 && odp->type == TYPE_STDCALL)
 310     {
 311         error( "'stdcall' not supported for Win16\n" );
 312         return 0;
 313     }
 314     if (!is_win32 && odp->type == TYPE_THISCALL)
 315     {
 316         error( "'thiscall' not supported for Win16\n" );
 317         return 0;
 318     }
 319     if (is_win32 && odp->type == TYPE_PASCAL)
 320     {
 321         error( "'pascal' not supported for Win32\n" );
 322         return 0;
 323     }
 324
 325     if (!parse_spec_arguments( odp, spec, 0 )) return 0;
 326
 327     if (odp->type == TYPE_VARARGS)
 328         odp->flags |= FLAG_NORELAY;  /* no relay debug possible for varags entry point */
 329
 330     if (!(token = GetToken(1)))
 331     {
 332         if (!strcmp( odp->name, "@" ))
 333         {
 334             error( "Missing handler name for anonymous function\n" );
 335             return 0;
 336         }
 337         odp->link_name = xstrdup( odp->name );
 338     }
 339     else
 340     {
 341         odp->link_name = xstrdup( token );
 342         if (strchr( odp->link_name, '.' ))
 343         {
 344             if (!is_win32)
 345             {
 346                 error( "Forwarded functions not supported for Win16\n" );
 347                 return 0;
 348             }
 349             odp->flags |= FLAG_FORWARD;
 350         }
 351     }
 352     if (target_cpu == CPU_x86 && odp->type == TYPE_THISCALL && !(odp->flags & FLAG_FORWARD))
 353     {
 354         char *link_name = strmake( "__thiscall_%s", odp->link_name );
 355         free( odp->link_name );
 356         odp->link_name = link_name;
 357     }
 358     return 1;
 359 }
 360
 361
 362 /*******************************************************************
 363  *         parse_spec_equate
 364  *
 365  * Parse an 'equate' definition in a .spec file.
 366  */
 367 static int parse_spec_equate( ORDDEF *odp, DLLSPEC *spec )
 368 {
 369     char *endptr;
 370     int value;
 371     const char *token;
 372
 373     if (spec->type == SPEC_WIN32)
 374     {
 375         error( "'equate' not supported for Win32\n" );
 376         return 0;
 377     }
 378     if (!(token = GetToken(0))) return 0;
 379     value = strtol(token, &endptr, 0);
 380     if (endptr == NULL || *endptr != '\0')
 381     {
 382         error( "Expected number value, got '%s'\n", token );
 383         return 0;
 384     }
 385     if (value < -0x8000 || value > 0xffff)
 386     {
 387         error( "Value %d for absolute symbol doesn't fit in 16 bits\n", value );
 388         value = 0;
 389     }
 390     odp->u.abs.value = value;
 391     return 1;
 392 }
 393
 394
 395 /*******************************************************************
 396  *         parse_spec_stub
 397  *
 398  * Parse a 'stub' definition in a .spec file
 399  */
 400 static int parse_spec_stub( ORDDEF *odp, DLLSPEC *spec )
 401 {
 402     odp->u.func.nb_args = -1;
 403     odp->link_name = xstrdup("");
 404     /* don't bother generating stubs for Winelib */
 405     if (odp->flags & FLAG_CPU_MASK)
 406         odp->flags &= FLAG_CPU(CPU_x86) | FLAG_CPU(CPU_x86_64) | FLAG_CPU(CPU_ARM) | FLAG_CPU(CPU_ARM64);
 407     else
 408         odp->flags |= FLAG_CPU(CPU_x86) | FLAG_CPU(CPU_x86_64) | FLAG_CPU(CPU_ARM) | FLAG_CPU(CPU_ARM64);
 409
 410     return parse_spec_arguments( odp, spec, 1 );
 411 }
 412
 413
 414 /*******************************************************************
 415  *         parse_spec_extern
 416  *
 417  * Parse an 'extern' definition in a .spec file.
 418  */
 419 static int parse_spec_extern( ORDDEF *odp, DLLSPEC *spec )
 420 {
 421     const char *token;
 422
 423     if (spec->type == SPEC_WIN16)
 424     {
 425         error( "'extern' not supported for Win16, use 'variable' instead\n" );
 426         return 0;
 427     }
 428     if (!(token = GetToken(1)))
 429     {
 430         if (!strcmp( odp->name, "@" ))
 431         {
 432             error( "Missing handler name for anonymous extern\n" );
 433             return 0;
 434         }
 435         odp->link_name = xstrdup( odp->name );
 436     }
 437     else
 438     {
 439         odp->link_name = xstrdup( token );
 440         if (strchr( odp->link_name, '.' )) odp->flags |= FLAG_FORWARD;
 441     }
 442     return 1;
 443 }
 444
 445
 446 /*******************************************************************
 447  *         parse_spec_flags
 448  *
 449  * Parse the optional flags for an entry point in a .spec file.
 450  */
 451 static const char *parse_spec_flags( DLLSPEC *spec, ORDDEF *odp )
 452 {
 453     unsigned int i;
 454     const char *token;
 455
 456     do
 457     {
 458         if (!(token = GetToken(0))) break;
 459         if (!strncmp( token, "arch=", 5))
 460         {
 461             char *args = xstrdup( token + 5 );
 462             char *cpu_name = strtok( args, "," );
 463             while (cpu_name)
 464             {
 465                 if (!strcmp( cpu_name, "win32" ))
 466                 {
 467                     if (spec->type == SPEC_WIN32)
 468                         odp->flags |= FLAG_CPU_WIN32;
 469                     else
 470                         odp->flags |= FLAG_EXPORT32;
 471                 }
 472                 else if (!strcmp( cpu_name, "win64" ))
 473                     odp->flags |= FLAG_CPU_WIN64;
 474                 else
 475                 {
 476                     int cpu = get_cpu_from_name( cpu_name );
 477                     if (cpu == -1)
 478                     {
 479                         error( "Unknown architecture '%s'\n", cpu_name );
 480                         return NULL;
 481                     }
 482                     odp->flags |= FLAG_CPU( cpu );
 483                 }
 484                 cpu_name = strtok( NULL, "," );
 485             }
 486             free( args );
 487         }
 488         else if (!strcmp( token, "i386" ))  /* backwards compatibility */
 489         {
 490             odp->flags |= FLAG_CPU(CPU_x86);
 491         }
 492         else
 493         {
 494             for (i = 0; FlagNames[i]; i++)
 495                 if (!strcmp( FlagNames[i], token )) break;
 496             if (!FlagNames[i])
 497             {
 498                 error( "Unknown flag '%s'\n", token );
 499                 return NULL;
 500             }
 501             odp->flags |= 1 << i;
 502         }
 503         token = GetToken(0);
 504     } while (token && *token == '-');
 505
 506     return token;
 507 }
 508
 509
 510 /*******************************************************************
 511  *         parse_spec_ordinal
 512  *
 513  * Parse an ordinal definition in a .spec file.
 514  */
 515 static int parse_spec_ordinal( int ordinal, DLLSPEC *spec )
 516 {
 517     const char *token;
 518     size_t len;
 519     ORDDEF *odp = add_entry_point( spec );
 520
 521     if (!(token = GetToken(0))) goto error;
 522
 523     for (odp->type = 0; odp->type < TYPE_NBTYPES; odp->type++)
 524         if (TypeNames[odp->type] && !strcmp( token, TypeNames[odp->type] ))
 525             break;
 526
 527     if (odp->type >= TYPE_NBTYPES)
 528     {
 529         error( "Expected type after ordinal, found '%s' instead\n", token );
 530         goto error;
 531     }
 532
 533     if (!(token = GetToken(0))) goto error;
 534     if (*token == '-' && !(token = parse_spec_flags( spec, odp ))) goto error;
 535
 536     if (ordinal == -1 && spec->type != SPEC_WIN32 && !(odp->flags & FLAG_EXPORT32))
 537     {
 538         error( "'@' ordinals not supported for Win16\n" );
 539         goto error;
 540     }
 541
 542     odp->name = xstrdup( token );
 543     odp->lineno = current_line;
 544     odp->ordinal = ordinal;
 545
 546     len = strspn( odp->name, valid_ordname_chars );
 547     if (len < strlen( odp->name ))
 548     {
 549         error( "Character '%c' is not allowed in exported name '%s'\n", odp->name[len], odp->name );
 550         goto error;
 551     }
 552
 553     switch(odp->type)
 554     {
 555     case TYPE_VARIABLE:
 556         if (!parse_spec_variable( odp, spec )) goto error;
 557         break;
 558     case TYPE_PASCAL:
 559     case TYPE_STDCALL:
 560     case TYPE_VARARGS:
 561     case TYPE_CDECL:
 562     case TYPE_THISCALL:
 563         if (!parse_spec_export( odp, spec )) goto error;
 564         break;
 565     case TYPE_ABS:
 566         if (!parse_spec_equate( odp, spec )) goto error;
 567         break;
 568     case TYPE_STUB:
 569         if (!parse_spec_stub( odp, spec )) goto error;
 570         break;
 571     case TYPE_EXTERN:
 572         if (!parse_spec_extern( odp, spec )) goto error;
 573         break;
 574     default:
 575         assert( 0 );
 576     }
 577
 578     if ((odp->flags & FLAG_CPU_MASK) && !(odp->flags & FLAG_CPU(target_cpu)))
 579     {
 580         /* ignore this entry point */
 581         spec->nb_entry_points--;
 582         return 1;
 583     }
 584
 585     if (ordinal != -1)
 586     {
 587         if (!ordinal)
 588         {
 589             error( "Ordinal 0 is not valid\n" );
 590             goto error;
 591         }
 592         if (ordinal >= MAX_ORDINALS)
 593         {
 594             error( "Ordinal number %d too large\n", ordinal );
 595             goto error;
 596         }
 597         if (ordinal > spec->limit) spec->limit = ordinal;
 598         if (ordinal < spec->base) spec->base = ordinal;
 599         odp->ordinal = ordinal;
 600     }
 601
 602     if (odp->type == TYPE_STDCALL && !(odp->flags & FLAG_PRIVATE))
 603     {
 604         if (!strcmp( odp->name, "DllRegisterServer" ) ||
 605             !strcmp( odp->name, "DllUnregisterServer" ) ||
 606             !strcmp( odp->name, "DllMain" ) ||
 607             !strcmp( odp->name, "DllGetClassObject" ) ||
 608             !strcmp( odp->name, "DllGetVersion" ) ||
 609             !strcmp( odp->name, "DllInstall" ) ||
 610             !strcmp( odp->name, "DllCanUnloadNow" ))
 611         {
 612             warning( "Function %s should be marked private\n", odp->name );
 613             if (strcmp( odp->name, odp->link_name ))
 614                 warning( "Function %s should not use a different internal name (%s)\n",
 615                          odp->name, odp->link_name );
 616         }
 617     }
 618
 619     if (!strcmp( odp->name, "@" ) || odp->flags & (FLAG_NONAME | FLAG_ORDINAL))
 620     {
 621         if (ordinal == -1)
 622         {
 623             if (!strcmp( odp->name, "@" ))
 624                 error( "Nameless function needs an explicit ordinal number\n" );
 625             else
 626                 error( "Function imported by ordinal needs an explicit ordinal number\n" );
 627             goto error;
 628         }
 629         if (spec->type != SPEC_WIN32)
 630         {
 631             error( "Nameless functions not supported for Win16\n" );
 632             goto error;
 633         }
 634         if (!strcmp( odp->name, "@" ))
 635         {
 636             free( odp->name );
 637             odp->name = NULL;
 638         }
 639         else if (!(odp->flags & FLAG_ORDINAL))  /* -ordinal only affects the import library */
 640         {
 641             odp->export_name = odp->name;
 642             odp->name = NULL;
 643         }
 644     }
 645     return 1;
 646
 647 error:
 648     spec->nb_entry_points--;
 649     free( odp->name );
 650     return 0;
 651 }
 652
 653
 654 static int name_compare( const void *ptr1, const void *ptr2 )
 655 {
 656     const ORDDEF *odp1 = *(const ORDDEF * const *)ptr1;
 657     const ORDDEF *odp2 = *(const ORDDEF * const *)ptr2;
 658     const char *name1 = odp1->name ? odp1->name : odp1->export_name;
 659     const char *name2 = odp2->name ? odp2->name : odp2->export_name;
 660     return strcmp( name1, name2 );
 661 }
 662
 663 /*******************************************************************
 664  *         assign_names
 665  *
 666  * Build the name array and catch duplicates.
 667  */
 668 static void assign_names( DLLSPEC *spec )
 669 {
 670     int i, j, nb_exp_names = 0;
 671     ORDDEF **all_names;
 672
 673     spec->nb_names = 0;
 674     for (i = 0; i < spec->nb_entry_points; i++)
 675         if (spec->entry_points[i].name) spec->nb_names++;
 676         else if (spec->entry_points[i].export_name) nb_exp_names++;
 677
 678     if (!spec->nb_names && !nb_exp_names) return;
 679
 680     /* check for duplicates */
 681
 682     all_names = xmalloc( (spec->nb_names + nb_exp_names) * sizeof(all_names[0]) );
 683     for (i = j = 0; i < spec->nb_entry_points; i++)
 684         if (spec->entry_points[i].name || spec->entry_points[i].export_name)
 685             all_names[j++] = &spec->entry_points[i];
 686
 687     qsort( all_names, j, sizeof(all_names[0]), name_compare );
 688
 689     for (i = 0; i < j - 1; i++)
 690     {
 691         const char *name1 = all_names[i]->name ? all_names[i]->name : all_names[i]->export_name;
 692         const char *name2 = all_names[i+1]->name ? all_names[i+1]->name : all_names[i+1]->export_name;
 693         if (!strcmp( name1, name2 ) &&
 694             !((all_names[i]->flags ^ all_names[i+1]->flags) & FLAG_EXPORT32))
 695         {
 696             current_line = max( all_names[i]->lineno, all_names[i+1]->lineno );
 697             error( "'%s' redefined\n%s:%d: First defined here\n",
 698                    name1, input_file_name,
 699                    min( all_names[i]->lineno, all_names[i+1]->lineno ) );
 700         }
 701     }
 702     free( all_names );
 703
 704     if (spec->nb_names)
 705     {
 706         spec->names = xmalloc( spec->nb_names * sizeof(spec->names[0]) );
 707         for (i = j = 0; i < spec->nb_entry_points; i++)
 708             if (spec->entry_points[i].name) spec->names[j++] = &spec->entry_points[i];
 709
 710         /* sort the list of names */
 711         qsort( spec->names, spec->nb_names, sizeof(spec->names[0]), name_compare );
 712     }
 713 }
 714
 715 /*******************************************************************
 716  *         assign_ordinals
 717  *
 718  * Build the ordinal array.
 719  */
 720 static void assign_ordinals( DLLSPEC *spec )
 721 {
 722     int i, count, ordinal;
 723
 724     /* start assigning from base, or from 1 if no ordinal defined yet */
 725
 726     spec->base = MAX_ORDINALS;
 727     spec->limit = 0;
 728     for (i = 0; i < spec->nb_entry_points; i++)
 729     {
 730         ordinal = spec->entry_points[i].ordinal;
 731         if (ordinal == -1) continue;
 732         if (ordinal > spec->limit) spec->limit = ordinal;
 733         if (ordinal < spec->base) spec->base = ordinal;
 734     }
 735     if (spec->base == MAX_ORDINALS) spec->base = 1;
 736     if (spec->limit < spec->base) spec->limit = spec->base;
 737
 738     count = max( spec->limit + 1, spec->base + spec->nb_entry_points );
 739     spec->ordinals = xmalloc( count * sizeof(spec->ordinals[0]) );
 740     memset( spec->ordinals, 0, count * sizeof(spec->ordinals[0]) );
 741
 742     /* fill in all explicitly specified ordinals */
 743     for (i = 0; i < spec->nb_entry_points; i++)
 744     {
 745         ordinal = spec->entry_points[i].ordinal;
 746         if (ordinal == -1) continue;
 747         if (spec->ordinals[ordinal])
 748         {
 749             current_line = max( spec->entry_points[i].lineno, spec->ordinals[ordinal]->lineno );
 750             error( "ordinal %d redefined\n%s:%d: First defined here\n",
 751                    ordinal, input_file_name,
 752                    min( spec->entry_points[i].lineno, spec->ordinals[ordinal]->lineno ) );
 753         }
 754         else spec->ordinals[ordinal] = &spec->entry_points[i];
 755     }
 756
 757     /* now assign ordinals to the rest */
 758     for (i = 0, ordinal = spec->base; i < spec->nb_entry_points; i++)
 759     {
 760         if (spec->entry_points[i].ordinal != -1) continue;
 761         while (spec->ordinals[ordinal]) ordinal++;
 762         if (ordinal >= MAX_ORDINALS)
 763         {
 764             current_line = spec->entry_points[i].lineno;
 765             fatal_error( "Too many functions defined (max %d)\n", MAX_ORDINALS );
 766         }
 767         spec->entry_points[i].ordinal = ordinal;
 768         spec->ordinals[ordinal] = &spec->entry_points[i];
 769     }
 770     if (ordinal > spec->limit) spec->limit = ordinal;
 771 }
 772
 773
 774 /*******************************************************************
 775  *         add_16bit_exports
 776  *
 777  * Add the necessary exports to the 32-bit counterpart of a 16-bit module.
 778  */
 779 void add_16bit_exports( DLLSPEC *spec32, DLLSPEC *spec16 )
 780 {
 781     int i;
 782     ORDDEF *odp;
 783
 784     spec32->file_name = xstrdup( spec16->file_name );
 785     if (spec16->characteristics & IMAGE_FILE_DLL)
 786     {
 787         spec32->characteristics = IMAGE_FILE_DLL;
 788         spec32->init_func = xstrdup( "__wine_spec_dll_entry" );
 789     }
 790
 791     /* add an export for the NE module */
 792
 793     odp = add_entry_point( spec32 );
 794     odp->type = TYPE_EXTERN;
 795     odp->flags = FLAG_PRIVATE;
 796     odp->name = xstrdup( "__wine_spec_dos_header" );
 797     odp->lineno = 0;
 798     odp->ordinal = 1;
 799     odp->link_name = xstrdup( ".L__wine_spec_dos_header" );
 800
 801     if (spec16->main_module)
 802     {
 803         odp = add_entry_point( spec32 );
 804         odp->type = TYPE_EXTERN;
 805         odp->flags = FLAG_PRIVATE;
 806         odp->name = xstrdup( "__wine_spec_main_module" );
 807         odp->lineno = 0;
 808         odp->ordinal = 2;
 809         odp->link_name = xstrdup( ".L__wine_spec_main_module" );
 810     }
 811
 812     /* add the explicit win32 exports */
 813
 814     for (i = 1; i <= spec16->limit; i++)
 815     {
 816         ORDDEF *odp16 = spec16->ordinals[i];
 817
 818         if (!odp16 || !odp16->name) continue;
 819         if (!(odp16->flags & FLAG_EXPORT32)) continue;
 820
 821         odp = add_entry_point( spec32 );
 822         odp->flags = odp16->flags & ~FLAG_EXPORT32;
 823         odp->type = odp16->type;
 824         odp->name = xstrdup( odp16->name );
 825         odp->lineno = odp16->lineno;
 826         odp->ordinal = -1;
 827         odp->link_name = xstrdup( odp16->link_name );
 828         odp->u.func.nb_args = odp16->u.func.nb_args;
 829         if (odp->u.func.nb_args > 0) memcpy( odp->u.func.args, odp16->u.func.args,
 830                                              odp->u.func.nb_args * sizeof(odp->u.func.args[0]) );
 831     }
 832
 833     assign_names( spec32 );
 834     assign_ordinals( spec32 );
 835 }
 836
 837
 838 /*******************************************************************
 839  *         parse_spec_file
 840  *
 841  * Parse a .spec file.
 842  */
 843 int parse_spec_file( FILE *file, DLLSPEC *spec )
 844 {
 845     const char *token;
 846
 847     input_file = file;
 848     current_line = 0;
 849
 850     comment_chars = "#;";
 851     separator_chars = "()-";
 852
 853     while (get_next_line())
 854     {
 855         if (!(token = GetToken(1))) continue;
 856         if (strcmp(token, "@") == 0)
 857         {
 858             if (!parse_spec_ordinal( -1, spec )) continue;
 859         }
 860         else if (IsNumberString(token))
 861         {
 862             if (!parse_spec_ordinal( atoi(token), spec )) continue;
 863         }
 864         else
 865         {
 866             error( "Expected ordinal declaration, got '%s'\n", token );
 867             continue;
 868         }
 869         if ((token = GetToken(1))) error( "Syntax error near '%s'\n", token );
 870     }
 871
 872     current_line = 0;  /* no longer parsing the input file */
 873     assign_names( spec );
 874     assign_ordinals( spec );
 875     return !nb_errors;
 876 }
 877
 878
 879 /*******************************************************************
 880  *         parse_def_library
 881  *
 882  * Parse a LIBRARY declaration in a .def file.
 883  */
 884 static int parse_def_library( DLLSPEC *spec )
 885 {
 886     const char *token = GetToken(1);
 887
 888     if (!token) return 1;
 889     if (strcmp( token, "BASE" ))
 890     {
 891         free( spec->file_name );
 892         spec->file_name = xstrdup( token );
 893         if (!(token = GetToken(1))) return 1;
 894     }
 895     if (strcmp( token, "BASE" ))
 896     {
 897         error( "Expected library name or BASE= declaration, got '%s'\n", token );
 898         return 0;
 899     }
 900     if (!(token = GetToken(0))) return 0;
 901     if (strcmp( token, "=" ))
 902     {
 903         error( "Expected '=' after BASE, got '%s'\n", token );
 904         return 0;
 905     }
 906     if (!(token = GetToken(0))) return 0;
 907     /* FIXME: do something with base address */
 908
 909     return 1;
 910 }
 911
 912
 913 /*******************************************************************
 914  *         parse_def_stack_heap_size
 915  *
 916  * Parse a STACKSIZE or HEAPSIZE declaration in a .def file.
 917  */
 918 static int parse_def_stack_heap_size( int is_stack, DLLSPEC *spec )
 919 {
 920     const char *token = GetToken(0);
 921     char *end;
 922     unsigned long size;
 923
 924     if (!token) return 0;
 925     size = strtoul( token, &end, 0 );
 926     if (*end)
 927     {
 928         error( "Invalid number '%s'\n", token );
 929         return 0;
 930     }
 931     if (is_stack) spec->stack_size = size / 1024;
 932     else spec->heap_size = size / 1024;
 933     if (!(token = GetToken(1))) return 1;
 934     if (strcmp( token, "," ))
 935     {
 936         error( "Expected ',' after size, got '%s'\n", token );
 937         return 0;
 938     }
 939     if (!(token = GetToken(0))) return 0;
 940     /* FIXME: do something with reserve size */
 941     return 1;
 942 }
 943
 944
 945 /*******************************************************************
 946  *         parse_def_export
 947  *
 948  * Parse an export declaration in a .def file.
 949  */
 950 static int parse_def_export( char *name, DLLSPEC *spec )
 951 {
 952     int i, args;
 953     const char *token = GetToken(1);
 954     ORDDEF *odp = add_entry_point( spec );
 955
 956     odp->lineno = current_line;
 957     odp->ordinal = -1;
 958     odp->name = name;
 959     args = remove_stdcall_decoration( odp->name );
 960     if (args == -1)
 961     {
 962         odp->type = TYPE_CDECL;
 963         args = 0;
 964     }
 965     else
 966     {
 967         odp->type = TYPE_STDCALL;
 968         args /= get_ptr_size();
 969         if (args >= MAX_ARGUMENTS)
 970         {
 971             error( "Too many arguments in stdcall function '%s'\n", odp->name );
 972             return 0;
 973         }
 974         for (i = 0; i < args; i++) odp->u.func.args[i] = ARG_LONG;
 975     }
 976     odp->u.func.nb_args = args;
 977
 978     /* check for optional internal name */
 979
 980     if (token && !strcmp( token, "=" ))
 981     {
 982         if (!(token = GetToken(0))) goto error;
 983         odp->link_name = xstrdup( token );
 984         remove_stdcall_decoration( odp->link_name );
 985         token = GetToken(1);
 986     }
 987     else
 988     {
 989       odp->link_name = xstrdup( name );
 990     }
 991
 992     /* check for optional ordinal */
 993
 994     if (token && token[0] == '@')
 995     {
 996         int ordinal;
 997
 998         if (!IsNumberString( token+1 ))
 999         {
1000             error( "Expected number after '@', got '%s'\n", token+1 );
1001             goto error;
1002         }
1003         ordinal = atoi( token+1 );
1004         if (!ordinal)
1005         {
1006             error( "Ordinal 0 is not valid\n" );
1007             goto error;
1008         }
1009         if (ordinal >= MAX_ORDINALS)
1010         {
1011             error( "Ordinal number %d too large\n", ordinal );
1012             goto error;
1013         }
1014         odp->ordinal = ordinal;
1015         token = GetToken(1);
1016     }
1017
1018     /* check for other optional keywords */
1019
1020     while (token)
1021     {
1022         if (!strcmp( token, "NONAME" ))
1023         {
1024             if (odp->ordinal == -1)
1025             {
1026                 error( "NONAME requires an ordinal\n" );
1027                 goto error;
1028             }
1029             odp->export_name = odp->name;
1030             odp->name = NULL;
1031             odp->flags |= FLAG_NONAME;
1032         }
1033         else if (!strcmp( token, "PRIVATE" ))
1034         {
1035             odp->flags |= FLAG_PRIVATE;
1036         }
1037         else if (!strcmp( token, "DATA" ))
1038         {
1039             odp->type = TYPE_EXTERN;
1040         }
1041         else
1042         {
1043             error( "Garbage text '%s' found at end of export declaration\n", token );
1044             goto error;
1045         }
1046         token = GetToken(1);
1047     }
1048     return 1;
1049
1050 error:
1051     spec->nb_entry_points--;
1052     free( odp->name );
1053     return 0;
1054 }
1055
1056
1057 /*******************************************************************
1058  *         parse_def_file
1059  *
1060  * Parse a .def file.
1061  */
1062 int parse_def_file( FILE *file, DLLSPEC *spec )
1063 {
1064     const char *token;
1065     int in_exports = 0;
1066
1067     input_file = file;
1068     current_line = 0;
1069
1070     comment_chars = ";";
1071     separator_chars = ",=";
1072
1073     while (get_next_line())
1074     {
1075         if (!(token = GetToken(1))) continue;
1076
1077         if (!strcmp( token, "LIBRARY" ) || !strcmp( token, "NAME" ))
1078         {
1079             if (!parse_def_library( spec )) continue;
1080             goto end_of_line;
1081         }
1082         else if (!strcmp( token, "STACKSIZE" ))
1083         {
1084             if (!parse_def_stack_heap_size( 1, spec )) continue;
1085             goto end_of_line;
1086         }
1087         else if (!strcmp( token, "HEAPSIZE" ))
1088         {
1089             if (!parse_def_stack_heap_size( 0, spec )) continue;
1090             goto end_of_line;
1091         }
1092         else if (!strcmp( token, "EXPORTS" ))
1093         {
1094             in_exports = 1;
1095             if (!(token = GetToken(1))) continue;
1096         }
1097         else if (!strcmp( token, "IMPORTS" ))
1098         {
1099             in_exports = 0;
1100             if (!(token = GetToken(1))) continue;
1101         }
1102         else if (!strcmp( token, "SECTIONS" ))
1103         {
1104             in_exports = 0;
1105             if (!(token = GetToken(1))) continue;
1106         }
1107
1108         if (!in_exports) continue;  /* ignore this line */
1109         if (!parse_def_export( xstrdup(token), spec )) continue;
1110
1111     end_of_line:
1112         if ((token = GetToken(1))) error( "Syntax error near '%s'\n", token );
1113     }
1114
1115     current_line = 0;  /* no longer parsing the input file */
1116     assign_names( spec );
1117     assign_ordinals( spec );
1118     return !nb_errors;
1119 }