tools/build.c

   1 /*
   2  * Copyright 1993 Robert J. Amstadt
   3  * Copyright 1995 Martin von Loewis
   4  * Copyright 1995, 1996 Alexandre Julliard
   5  */
   6
   7 #ifndef WINELIB
   8
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include <string.h>
  12 #include <ctype.h>
  13 #include "registers.h"
  14 #include "winerror.h"  /* for ERROR_CALL_NOT_IMPLEMENTED */
  15 #include "module.h"
  16 #include "neexe.h"
  17 #include "windows.h"
  18
  19 /* ELF symbols do not have an underscore in front */
  20 #if defined (__ELF__) || defined (__svr4__) || defined(_SCO_DS)
  21 #define PREFIX
  22 #else
  23 #define PREFIX "_"
  24 #endif
  25
  26 #define TYPE_INVALID     0
  27 #define TYPE_BYTE        1
  28 #define TYPE_WORD        2
  29 #define TYPE_LONG        3
  30 #define TYPE_PASCAL_16   4
  31 #define TYPE_PASCAL      5
  32 #define TYPE_REGISTER    6
  33 #define TYPE_ABS         7
  34 #define TYPE_RETURN      8
  35 #define TYPE_STUB        9
  36 #define TYPE_STDCALL    10
  37
  38 #define MAX_ORDINALS    1299
  39
  40   /* Callback function used for stub functions */
  41 #define STUB_CALLBACK \
  42   ((SpecType == SPEC_WIN16) ? "RELAY_Unimplemented16": "RELAY_Unimplemented32")
  43
  44 enum SPEC_TYPE
  45 {
  46     SPEC_INVALID,
  47     SPEC_WIN16,
  48     SPEC_WIN32
  49 };
  50
  51 typedef struct ordinal_definition_s
  52 {
  53     int type;
  54     int offset;
  55     char export_name[80];
  56     void *additional_data;
  57 } ORDDEF;
  58
  59 typedef struct ordinal_variable_definition_s
  60 {
  61     int n_values;
  62     int *values;
  63 } ORDVARDEF;
  64
  65 typedef struct ordinal_function_definition_s
  66 {
  67     int  n_args;
  68     char arg_types[32];
  69     char internal_name[80];
  70 } ORDFUNCDEF;
  71
  72 typedef struct ordinal_return_definition_s
  73 {
  74     int arg_size;
  75     int ret_value;
  76 } ORDRETDEF;
  77
  78 static ORDDEF OrdinalDefinitions[MAX_ORDINALS];
  79
  80 static enum SPEC_TYPE SpecType = SPEC_INVALID;
  81 char DLLName[80];
  82 int Limit = 0;
  83 int Base = 0;
  84 int HeapSize = 0;
  85 FILE *SpecFp;
  86
  87 char *ParseBuffer = NULL;
  88 char *ParseNext;
  89 char ParseSaveChar;
  90 int Line;
  91
  92 static int debugging = 1;
  93
  94   /* Offset of register relative to the end of the context struct */
  95 #define CONTEXTOFFSET(reg) \
  96   ((int)&reg##_reg((struct sigcontext_struct *)0) \
  97    - sizeof(struct sigcontext_struct))
  98
  99 static void *xmalloc (size_t size)
 100 {
 101     void *res;
 102
 103     res = malloc (size ? size : 1);
 104     if (res == NULL)
 105     {
 106         fprintf (stderr, "Virtual memory exhausted.\n");
 107         exit (1);
 108     }
 109     return res;
 110 }
 111
 112
 113 static void *xrealloc (void *ptr, size_t size)
 114 {
 115     void *res = realloc (ptr, size);
 116     if (res == NULL)
 117     {
 118         fprintf (stderr, "Virtual memory exhausted.\n");
 119         exit (1);
 120     }
 121     return res;
 122 }
 123
 124
 125 static int IsNumberString(char *s)
 126 {
 127     while (*s != '\0')
 128         if (!isdigit(*s++))
 129             return 0;
 130
 131     return 1;
 132 }
 133
 134 static char *strupper(char *s)
 135 {
 136     char *p;
 137
 138     for(p = s; *p != '\0'; p++)
 139         *p = toupper(*p);
 140
 141     return s;
 142 }
 143
 144 static char * GetTokenInLine(void)
 145 {
 146     char *p;
 147     char *token;
 148
 149     if (ParseNext != ParseBuffer)
 150     {
 151         if (ParseSaveChar == '\0')
 152             return NULL;
 153         *ParseNext = ParseSaveChar;
 154     }
 155
 156     /*
 157      * Remove initial white space.
 158      */
 159     for (p = ParseNext; isspace(*p); p++)
 160         ;
 161
 162     if ((*p == '\0') || (*p == '#'))
 163         return NULL;
 164
 165     /*
 166      * Find end of token.
 167      */
 168     token = p++;
 169     if (*token != '(' && *token != ')')
 170         while (*p != '\0' && *p != '(' && *p != ')' && !isspace(*p))
 171             p++;
 172
 173     ParseSaveChar = *p;
 174     ParseNext = p;
 175     *p = '\0';
 176
 177     return token;
 178 }
 179
 180 static char * GetToken(void)
 181 {
 182     char *token;
 183
 184     if (ParseBuffer == NULL)
 185     {
 186         ParseBuffer = xmalloc(512);
 187         ParseNext = ParseBuffer;
 188         Line++;
 189         while (1)
 190         {
 191             if (fgets(ParseBuffer, 511, SpecFp) == NULL)
 192                 return NULL;
 193             if (ParseBuffer[0] != '#')
 194                 break;
 195         }
 196     }
 197
 198     while ((token = GetTokenInLine()) == NULL)
 199     {
 200         ParseNext = ParseBuffer;
 201         Line++;
 202         while (1)
 203         {
 204             if (fgets(ParseBuffer, 511, SpecFp) == NULL)
 205                 return NULL;
 206             if (ParseBuffer[0] != '#')
 207                 break;
 208         }
 209     }
 210
 211     return token;
 212 }
 213
 214 static int ParseVariable(int ordinal, int type)
 215 {
 216     ORDDEF *odp;
 217     ORDVARDEF *vdp;
 218     char export_name[80];
 219     char *token;
 220     char *endptr;
 221     int *value_array;
 222     int n_values;
 223     int value_array_size;
 224
 225     strcpy(export_name, GetToken());
 226
 227     token = GetToken();
 228     if (*token != '(')
 229     {
 230         fprintf(stderr, "%d: Expected '(' got '%s'\n", Line, token);
 231         exit(1);
 232     }
 233
 234     n_values = 0;
 235     value_array_size = 25;
 236     value_array = xmalloc(sizeof(*value_array) * value_array_size);
 237
 238     while ((token = GetToken()) != NULL)
 239     {
 240         if (*token == ')')
 241             break;
 242
 243         value_array[n_values++] = strtol(token, &endptr, 0);
 244         if (n_values == value_array_size)
 245         {
 246             value_array_size += 25;
 247             value_array = xrealloc(value_array,
 248                                    sizeof(*value_array) * value_array_size);
 249         }
 250
 251         if (endptr == NULL || *endptr != '\0')
 252         {
 253             fprintf(stderr, "%d: Expected number value, got '%s'\n", Line,
 254                     token);
 255             exit(1);
 256         }
 257     }
 258
 259     if (token == NULL)
 260     {
 261         fprintf(stderr, "%d: End of file in variable declaration\n", Line);
 262         exit(1);
 263     }
 264
 265     if (ordinal >= MAX_ORDINALS)
 266     {
 267         fprintf(stderr, "%d: Ordinal number too large\n", Line);
 268         exit(1);
 269     }
 270
 271     odp = &OrdinalDefinitions[ordinal];
 272     odp->type = type;
 273     strcpy(odp->export_name, export_name);
 274
 275     vdp = xmalloc(sizeof(*vdp));
 276     odp->additional_data = vdp;
 277
 278     vdp->n_values = n_values;
 279     vdp->values = xrealloc(value_array, sizeof(*value_array) * n_values);
 280
 281     return 0;
 282 }
 283
 284 static int ParseExportFunction(int ordinal, int type)
 285 {
 286     char *token;
 287     ORDDEF *odp;
 288     ORDFUNCDEF *fdp;
 289     int i;
 290
 291     odp = &OrdinalDefinitions[ordinal];
 292     strcpy(odp->export_name, GetToken());
 293     odp->type = type;
 294     fdp = xmalloc(sizeof(*fdp));
 295     odp->additional_data = fdp;
 296
 297     token = GetToken();
 298     if (*token != '(')
 299     {
 300         fprintf(stderr, "%d: Expected '(' got '%s'\n", Line, token);
 301         exit(1);
 302     }
 303
 304     for (i = 0; i < 16; i++)
 305     {
 306         token = GetToken();
 307         if (*token == ')')
 308             break;
 309
 310         if (!strcmp(token, "byte") || !strcmp(token, "word"))
 311             fdp->arg_types[i] = 'w';
 312         else if (!strcmp(token, "s_byte") || !strcmp(token, "s_word"))
 313             fdp->arg_types[i] = 's';
 314         else if (!strcmp(token, "long") || !strcmp(token, "segptr"))
 315             fdp->arg_types[i] = 'l';
 316         else if (!strcmp(token, "ptr"))
 317             fdp->arg_types[i] = 'p';
 318         else
 319         {
 320             fprintf(stderr, "%d: Unknown variable type '%s'\n", Line, token);
 321             exit(1);
 322         }
 323     }
 324     fdp->arg_types[i] = '\0';
 325
 326     strcpy(fdp->internal_name, GetToken());
 327     return 0;
 328 }
 329
 330 static int ParseEquate(int ordinal)
 331 {
 332     ORDDEF *odp;
 333     char *token;
 334     char *endptr;
 335     int value;
 336
 337     odp = &OrdinalDefinitions[ordinal];
 338     strcpy(odp->export_name, GetToken());
 339
 340     token = GetToken();
 341     value = strtol(token, &endptr, 0);
 342     if (endptr == NULL || *endptr != '\0')
 343     {
 344         fprintf(stderr, "%d: Expected number value, got '%s'\n", Line,
 345                 token);
 346         exit(1);
 347     }
 348
 349     odp->type = TYPE_ABS;
 350     odp->additional_data = (void *) value;
 351
 352     return 0;
 353 }
 354
 355 static int ParseReturn(int ordinal)
 356 {
 357     ORDDEF *odp;
 358     ORDRETDEF *rdp;
 359     char *token;
 360     char *endptr;
 361
 362     rdp = xmalloc(sizeof(*rdp));
 363
 364     odp = &OrdinalDefinitions[ordinal];
 365     strcpy(odp->export_name, GetToken());
 366     odp->type = TYPE_RETURN;
 367     odp->additional_data = rdp;
 368
 369     token = GetToken();
 370     rdp->arg_size = strtol(token, &endptr, 0);
 371     if (endptr == NULL || *endptr != '\0')
 372     {
 373         fprintf(stderr, "%d: Expected number value, got '%s'\n", Line,
 374                 token);
 375         exit(1);
 376     }
 377
 378     token = GetToken();
 379     rdp->ret_value = strtol(token, &endptr, 0);
 380     if (endptr == NULL || *endptr != '\0')
 381     {
 382         fprintf(stderr, "%d: Expected number value, got '%s'\n", Line,
 383                 token);
 384         exit(1);
 385     }
 386
 387     return 0;
 388 }
 389
 390
 391 static int ParseStub( int ordinal )
 392 {
 393     ORDDEF *odp;
 394     ORDFUNCDEF *fdp;
 395
 396     odp = &OrdinalDefinitions[ordinal];
 397     strcpy( odp->export_name, GetToken() );
 398     odp->type = TYPE_STUB;
 399     fdp = xmalloc(sizeof(*fdp));
 400     odp->additional_data = fdp;
 401     fdp->arg_types[0] = '\0';
 402     strcpy( fdp->internal_name, STUB_CALLBACK );
 403     return 0;
 404 }
 405
 406
 407 static int ParseOrdinal(int ordinal)
 408 {
 409     char *token;
 410
 411     if (ordinal >= MAX_ORDINALS)
 412     {
 413         fprintf(stderr, "%d: Ordinal number too large\n", Line);
 414         exit(1);
 415     }
 416     if (ordinal > Limit) Limit = ordinal;
 417
 418     token = GetToken();
 419     if (token == NULL)
 420     {
 421         fprintf(stderr, "%d: Expected type after ordinal\n", Line);
 422         exit(1);
 423     }
 424
 425     if (strcmp(token, "byte") == 0)
 426         return ParseVariable(ordinal, TYPE_BYTE);
 427     else if (strcmp(token, "word") == 0)
 428         return ParseVariable(ordinal, TYPE_WORD);
 429     else if (strcmp(token, "long") == 0)
 430         return ParseVariable(ordinal, TYPE_LONG);
 431     else if (strcmp(token, "p") == 0)
 432         return ParseExportFunction(ordinal, TYPE_PASCAL);
 433     else if (strcmp(token, "pascal") == 0)
 434         return ParseExportFunction(ordinal, TYPE_PASCAL);
 435     else if (strcmp(token, "pascal16") == 0)
 436         return ParseExportFunction(ordinal, TYPE_PASCAL_16);
 437     else if (strcmp(token, "register") == 0)
 438         return ParseExportFunction(ordinal, TYPE_REGISTER);
 439     else if (strcmp(token, "stdcall") == 0)
 440         return ParseExportFunction(ordinal, TYPE_STDCALL);
 441     else if (strcmp(token, "equate") == 0)
 442         return ParseEquate(ordinal);
 443     else if (strcmp(token, "return") == 0)
 444         return ParseReturn(ordinal);
 445     else if (strcmp(token, "stub") == 0)
 446         return ParseStub(ordinal);
 447     else
 448     {
 449         fprintf(stderr,
 450                 "%d: Expected type after ordinal, found '%s' instead\n",
 451                 Line, token);
 452         exit(1);
 453     }
 454 }
 455
 456 static int ParseTopLevel(void)
 457 {
 458     char *token;
 459
 460     while ((token = GetToken()) != NULL)
 461     {
 462         if (strcmp(token, "name") == 0)
 463         {
 464             strcpy(DLLName, GetToken());
 465             strupper(DLLName);
 466         }
 467         else if (strcmp(token, "type") == 0)
 468         {
 469             token = GetToken();
 470             if (!strcmp(token, "win16" )) SpecType = SPEC_WIN16;
 471             else if (!strcmp(token, "win32" )) SpecType = SPEC_WIN32;
 472             else
 473             {
 474                 fprintf(stderr, "%d: Type must be 'win16' or 'win32'\n", Line);
 475                 exit(1);
 476             }
 477         }
 478         else if (strcmp(token, "base") == 0)
 479         {
 480             token = GetToken();
 481             if (!IsNumberString(token))
 482             {
 483                 fprintf(stderr, "%d: Expected number after base\n", Line);
 484                 exit(1);
 485             }
 486             Base = atoi(token);
 487         }
 488         else if (strcmp(token, "heap") == 0)
 489         {
 490             token = GetToken();
 491             if (!IsNumberString(token))
 492             {
 493                 fprintf(stderr, "%d: Expected number after heap\n", Line);
 494                 exit(1);
 495             }
 496             HeapSize = atoi(token);
 497         }
 498         else if (IsNumberString(token))
 499         {
 500             int ordinal;
 501             int rv;
 502
 503             ordinal = atoi(token);
 504             if ((rv = ParseOrdinal(ordinal)) < 0)
 505                 return rv;
 506         }
 507         else
 508         {
 509             fprintf(stderr,
 510                     "%d: Expected name, id, length or ordinal\n", Line);
 511             exit(1);
 512         }
 513     }
 514
 515     return 0;
 516 }
 517
 518
 519 /*******************************************************************
 520  *         StoreVariableCode
 521  *
 522  * Store a list of ints into a byte array.
 523  */
 524 static int StoreVariableCode( unsigned char *buffer, int size, ORDDEF *odp )
 525 {
 526     ORDVARDEF *vdp;
 527     int i;
 528
 529     vdp = odp->additional_data;
 530     switch(size)
 531     {
 532     case 1:
 533         for (i = 0; i < vdp->n_values; i++)
 534             buffer[i] = vdp->values[i];
 535         break;
 536     case 2:
 537         for (i = 0; i < vdp->n_values; i++)
 538             ((unsigned short *)buffer)[i] = vdp->values[i];
 539         break;
 540     case 4:
 541         for (i = 0; i < vdp->n_values; i++)
 542             ((unsigned int *)buffer)[i] = vdp->values[i];
 543         break;
 544     }
 545     return vdp->n_values * size;
 546 }
 547
 548
 549 /*******************************************************************
 550  *         DumpBytes
 551  *
 552  * Dump a byte stream into the assembly code.
 553  */
 554 static void DumpBytes( const unsigned char *data, int len,
 555                        const char *section, const char *label_start )
 556 {
 557     int i;
 558     if (section) printf( "\t%s\n", section );
 559     if (label_start) printf( "%s:\n", label_start );
 560     for (i = 0; i < len; i++)
 561     {
 562         if (!(i & 0x0f)) printf( "\t.byte " );
 563         printf( "%d", *data++ );
 564         if (i < len - 1) printf( "%c", ((i & 0x0f) != 0x0f) ? ',' : '\n' );
 565     }
 566     printf( "\n" );
 567 }
 568
 569
 570 /*******************************************************************
 571  *         BuildModule16
 572  *
 573  * Build the in-memory representation of a 16-bit NE module, and dump it
 574  * as a byte stream into the assembly code.
 575  */
 576 static int BuildModule16( int max_code_offset, int max_data_offset )
 577 {
 578     ORDDEF *odp;
 579     int i;
 580     char *buffer;
 581     NE_MODULE *pModule;
 582     SEGTABLEENTRY *pSegment;
 583     OFSTRUCT *pFileInfo;
 584     BYTE *pstr, *bundle;
 585     WORD *pword;
 586
 587     /*   Module layout:
 588      * NE_MODULE       Module
 589      * OFSTRUCT        File information
 590      * SEGTABLEENTRY   Segment 1 (code)
 591      * SEGTABLEENTRY   Segment 2 (data)
 592      * WORD[2]         Resource table (empty)
 593      * BYTE[2]         Imported names (empty)
 594      * BYTE[n]         Resident names table
 595      * BYTE[n]         Entry table
 596      */
 597
 598     buffer = xmalloc( 0x10000 );
 599
 600     pModule = (NE_MODULE *)buffer;
 601     pModule->magic = NE_SIGNATURE;
 602     pModule->count = 1;
 603     pModule->next = 0;
 604     pModule->flags = NE_FFLAGS_SINGLEDATA | NE_FFLAGS_BUILTIN | NE_FFLAGS_LIBMODULE;
 605     pModule->dgroup = 2;
 606     pModule->heap_size = HeapSize;
 607     pModule->stack_size = 0;
 608     pModule->ip = 0;
 609     pModule->cs = 0;
 610     pModule->sp = 0;
 611     pModule->ss = 0;
 612     pModule->seg_count = 2;
 613     pModule->modref_count = 0;
 614     pModule->nrname_size = 0;
 615     pModule->modref_table = 0;
 616     pModule->nrname_fpos = 0;
 617     pModule->moveable_entries = 0;
 618     pModule->alignment = 0;
 619     pModule->truetype = 0;
 620     pModule->os_flags = NE_OSFLAGS_WINDOWS;
 621     pModule->misc_flags = 0;
 622     pModule->dlls_to_init  = 0;
 623     pModule->nrname_handle = 0;
 624     pModule->min_swap_area = 0;
 625     pModule->expected_version = 0x030a;
 626     pModule->pe_module = NULL;
 627     pModule->self = 0;
 628     pModule->self_loading_sel = 0;
 629
 630       /* File information */
 631
 632     pFileInfo = (OFSTRUCT *)(pModule + 1);
 633     pModule->fileinfo = (int)pFileInfo - (int)pModule;
 634     memset( pFileInfo, 0, sizeof(*pFileInfo) - sizeof(pFileInfo->szPathName) );
 635     pFileInfo->cBytes = sizeof(*pFileInfo) - sizeof(pFileInfo->szPathName)
 636                         + strlen(DLLName) + 4;
 637     sprintf( pFileInfo->szPathName, "%s.DLL", DLLName );
 638     pstr = (char *)pFileInfo + pFileInfo->cBytes + 1;
 639
 640       /* Segment table */
 641
 642     pSegment = (SEGTABLEENTRY *)pstr;
 643     pModule->seg_table = (int)pSegment - (int)pModule;
 644     pSegment->filepos = 0;
 645     pSegment->size = max_code_offset;
 646     pSegment->flags = 0;
 647     pSegment->minsize = max_code_offset;
 648     pSegment->selector = 0;
 649     pSegment++;
 650
 651     pModule->dgroup_entry = (int)pSegment - (int)pModule;
 652     pSegment->filepos = 0;
 653     pSegment->size = max_data_offset;
 654     pSegment->flags = NE_SEGFLAGS_DATA;
 655     pSegment->minsize = max_data_offset;
 656     pSegment->selector = 0;
 657     pSegment++;
 658
 659       /* Resource table */
 660
 661     pword = (WORD *)pSegment;
 662     pModule->res_table = (int)pword - (int)pModule;
 663     *pword++ = 0;
 664     *pword++ = 0;
 665
 666       /* Imported names table */
 667
 668     pstr = (char *)pword;
 669     pModule->import_table = (int)pstr - (int)pModule;
 670     *pstr++ = 0;
 671     *pstr++ = 0;
 672
 673       /* Resident names table */
 674
 675     pModule->name_table = (int)pstr - (int)pModule;
 676     /* First entry is module name */
 677     *pstr = strlen(DLLName );
 678     strcpy( pstr + 1, DLLName );
 679     pstr += *pstr + 1;
 680     *(WORD *)pstr = 0;
 681     pstr += sizeof(WORD);
 682     /* Store all ordinals */
 683     odp = OrdinalDefinitions + 1;
 684     for (i = 1; i <= Limit; i++, odp++)
 685     {
 686         if (!odp->export_name[0]) continue;
 687         *pstr = strlen( odp->export_name );
 688         strcpy( pstr + 1, odp->export_name );
 689         strupper( pstr + 1 );
 690         pstr += *pstr + 1;
 691         *(WORD *)pstr = i;
 692         pstr += sizeof(WORD);
 693     }
 694     *pstr++ = 0;
 695
 696       /* Entry table */
 697
 698     pModule->entry_table = (int)pstr - (int)pModule;
 699     bundle = NULL;
 700     odp = OrdinalDefinitions + 1;
 701     for (i = 1; i <= Limit; i++, odp++)
 702     {
 703         int selector = 0;
 704
 705         switch (odp->type)
 706         {
 707         case TYPE_INVALID:
 708             selector = 0;  /* Invalid selector */
 709             break;
 710
 711         case TYPE_PASCAL:
 712         case TYPE_PASCAL_16:
 713         case TYPE_REGISTER:
 714         case TYPE_RETURN:
 715         case TYPE_STUB:
 716             selector = 1;  /* Code selector */
 717             break;
 718
 719         case TYPE_BYTE:
 720         case TYPE_WORD:
 721         case TYPE_LONG:
 722             selector = 2;  /* Data selector */
 723             break;
 724
 725         case TYPE_ABS:
 726             selector = 0xfe;  /* Constant selector */
 727             break;
 728         }
 729
 730           /* create a new bundle if necessary */
 731         if (!bundle || (bundle[0] >= 254) || (bundle[1] != selector))
 732         {
 733             bundle = pstr;
 734             bundle[0] = 0;
 735             bundle[1] = selector;
 736             pstr += 2;
 737         }
 738
 739         (*bundle)++;
 740         if (selector != 0)
 741         {
 742             *pstr++ = 1;
 743             *(WORD *)pstr = odp->offset;
 744             pstr += sizeof(WORD);
 745         }
 746     }
 747     *pstr++ = 0;
 748
 749       /* Dump the module content */
 750
 751     DumpBytes( (char *)pModule, (int)pstr - (int)pModule,
 752                ".data", "Module_Start" );
 753     return (int)pstr - (int)pModule;
 754 }
 755
 756
 757 /*******************************************************************
 758  *         BuildModule32
 759  *
 760  * Build the in-memory representation of a 32-bit pseudo-NE module, and dump it
 761  * as a byte stream into the assembly code.
 762  */
 763 static int BuildModule32(void)
 764 {
 765     char *buffer;
 766     NE_MODULE *pModule;
 767     OFSTRUCT *pFileInfo;
 768     BYTE *pstr;
 769     WORD *pword;
 770
 771     /*   Module layout:
 772      * NE_MODULE            Module
 773      * OFSTRUCT             File information
 774      * SEGTABLEENTRY        Segment table (empty)
 775      * WORD[2]              Resource table (empty)
 776      * BYTE[2]              Imported names (empty)
 777      * BYTE[n]              Resident names table (1 entry)
 778      * BYTE[n]              Entry table (empty)
 779      */
 780
 781     buffer = xmalloc( 0x10000 );
 782
 783     pModule = (NE_MODULE *)buffer;
 784     pModule->magic = NE_SIGNATURE;
 785     pModule->count = 1;
 786     pModule->next = 0;
 787     pModule->flags = NE_FFLAGS_SINGLEDATA | NE_FFLAGS_BUILTIN |
 788                      NE_FFLAGS_LIBMODULE | NE_FFLAGS_WIN32;
 789     pModule->dgroup = 0;
 790     pModule->heap_size = HeapSize;
 791     pModule->stack_size = 0;
 792     pModule->ip = 0;
 793     pModule->cs = 0;
 794     pModule->sp = 0;
 795     pModule->ss = 0;
 796     pModule->seg_count = 0;
 797     pModule->modref_count = 0;
 798     pModule->nrname_size = 0;
 799     pModule->modref_table = 0;
 800     pModule->nrname_fpos = 0;
 801     pModule->moveable_entries = 0;
 802     pModule->alignment = 0;
 803     pModule->truetype = 0;
 804     pModule->os_flags = NE_OSFLAGS_WINDOWS;
 805     pModule->misc_flags = 0;
 806     pModule->dlls_to_init  = 0;
 807     pModule->nrname_handle = 0;
 808     pModule->min_swap_area = 0;
 809     pModule->expected_version = 0x030a;
 810     pModule->pe_module = NULL;
 811     pModule->self = 0;
 812     pModule->self_loading_sel = 0;
 813
 814       /* File information */
 815
 816     pFileInfo = (OFSTRUCT *)(pModule + 1);
 817     pModule->fileinfo = (int)pFileInfo - (int)pModule;
 818     memset( pFileInfo, 0, sizeof(*pFileInfo) - sizeof(pFileInfo->szPathName) );
 819     pFileInfo->cBytes = sizeof(*pFileInfo) - sizeof(pFileInfo->szPathName)
 820                         + strlen(DLLName) + 4;
 821     sprintf( pFileInfo->szPathName, "%s.DLL", DLLName );
 822     pstr = (char *)pFileInfo + pFileInfo->cBytes + 1;
 823
 824       /* Segment table */
 825
 826     pModule->seg_table = (int)pstr - (int)pModule;
 827
 828       /* Resource table */
 829
 830     pword = (WORD *)pstr;
 831     pModule->res_table = (int)pword - (int)pModule;
 832     *pword++ = 0;
 833     *pword++ = 0;
 834
 835       /* Imported names table */
 836
 837     pstr = (char *)pword;
 838     pModule->import_table = (int)pstr - (int)pModule;
 839     *pstr++ = 0;
 840     *pstr++ = 0;
 841
 842       /* Resident names table */
 843
 844     pModule->name_table = (int)pstr - (int)pModule;
 845     /* First entry is module name */
 846     *pstr = strlen(DLLName );
 847     strcpy( pstr + 1, DLLName );
 848     pstr += *pstr + 1;
 849     *(WORD *)pstr = 0;
 850     pstr += sizeof(WORD);
 851     *pstr++ = 0;
 852
 853       /* Entry table */
 854
 855     pModule->entry_table = (int)pstr - (int)pModule;
 856     *pstr++ = 0;
 857
 858       /* Dump the module content */
 859
 860     DumpBytes( (char *)pModule, (int)pstr - (int)pModule,
 861                ".data", "Module_Start" );
 862     return (int)pstr - (int)pModule;
 863 }
 864
 865
 866 /*******************************************************************
 867  *         BuildSpec32Files
 868  *
 869  * Build a Win32 assembly file from a spec file.
 870  */
 871 static void BuildSpec32Files(void)
 872 {
 873     ORDDEF *odp;
 874     ORDFUNCDEF *fdp;
 875     ORDRETDEF *rdp;
 876     int i, module_size;
 877
 878     printf( "/* File generated automatically; do not edit! */\n" );
 879     printf( "\t.text\n" );
 880     printf( "\t.align 4\n" );
 881     printf( "Code_Start:\n\n" );
 882
 883     odp = OrdinalDefinitions;
 884     for (i = 0; i <= Limit; i++, odp++)
 885     {
 886         fdp = odp->additional_data;
 887         rdp = odp->additional_data;
 888
 889         switch (odp->type)
 890         {
 891         case TYPE_INVALID:
 892             printf( "/* %s.%d */\n", DLLName, i );
 893             printf( "\t.align 4\n" );
 894             printf( "%s_%d:\n", DLLName, i );
 895             printf( "\tpushl %%ebp\n" );
 896             printf( "\tpushl $Name_%d\n", i );
 897             printf( "\tpushl $" PREFIX "%s\n", STUB_CALLBACK );
 898             printf( "\tjmp " PREFIX "CallFrom32_0\n" );
 899             break;
 900
 901         case TYPE_STDCALL:
 902         case TYPE_STUB:
 903             printf( "/* %s.%d (%s) */\n",
 904                      DLLName, i, odp->export_name);
 905             printf( "\t.align 4\n" );
 906             printf( "%s_%d:\n", DLLName, i );
 907             printf( "\tpushl %%ebp\n" );
 908             printf( "\tpushl $Name_%d\n", i );
 909             printf( "\tpushl $" PREFIX "%s\n", fdp->internal_name );
 910             printf( "\tjmp " PREFIX "CallFrom32_%d\n", strlen(fdp->arg_types));
 911             break;
 912
 913         case TYPE_RETURN:
 914             printf( "/* %s.%d (%s) */\n",
 915                      DLLName, i, odp->export_name);
 916             printf( "\t.align 4\n" );
 917             printf( "%s_%d:\n", DLLName, i );
 918             printf( "\tmovl $%d,%%eax\n", ERROR_CALL_NOT_IMPLEMENTED );
 919             printf( "\tmovl %%eax," PREFIX "WIN32_LastError\n" );
 920             printf( "\tmovl $%d,%%eax\n", rdp->ret_value );
 921             if (rdp->arg_size) printf( "\tret $%d\n", rdp->arg_size );
 922             else printf( "\tret\n" );
 923             break;
 924
 925         default:
 926             fprintf(stderr,"build: function type %d not available for Win32\n",
 927                     odp->type);
 928             exit(1);
 929         }
 930     }
 931
 932     module_size = BuildModule32();
 933
 934     /* Output the DLL functions table */
 935
 936     printf( "\t.text\n" );
 937     printf( "\t.align 4\n" );
 938     printf( "Functions:\n" );
 939     odp = OrdinalDefinitions;
 940     for (i = 0; i <= Limit; i++, odp++) printf("\t.long %s_%d\n", DLLName, i);
 941
 942     /* Output the DLL names table */
 943
 944     printf( "FuncNames:\n" );
 945     odp = OrdinalDefinitions;
 946     for (i = 0; i <= Limit; i++, odp++)
 947     {
 948         if (odp->type == TYPE_INVALID) printf( "\t.long 0\n" );
 949         else printf( "\t.long Name_%d\n", i );
 950     }
 951
 952     /* Output the DLL names */
 953
 954     for (i = 0, odp = OrdinalDefinitions; i <= Limit; i++, odp++)
 955     {
 956         printf( "Name_%d:\t", i );
 957         if (odp->type == TYPE_INVALID)
 958             printf( ".ascii \"%s.%d\\0\"\n", DLLName, i );
 959         else
 960             printf( ".ascii \"%s\\0\"\n", odp->export_name );
 961     }
 962
 963     /* Output the DLL descriptor */
 964
 965     printf( "DLLName:\t.ascii \"%s\\0\"\n", DLLName );
 966     printf( "\t.align 4\n" );
 967     printf( "\t.globl " PREFIX "%s_Descriptor\n", DLLName );
 968     printf( PREFIX "%s_Descriptor:\n", DLLName );
 969     printf( "\t.long DLLName\n" );          /* Name */
 970     printf( "\t.long Module_Start\n" );     /* Module start */
 971     printf( "\t.long %d\n", module_size );  /* Module size */
 972     printf( "\t.long %d\n", Base );         /* Base */
 973     printf( "\t.long %d\n", Limit );        /* Limit */
 974     printf( "\t.long Functions\n" );        /* Functions */
 975     printf( "\t.long FuncNames\n" );        /* Function names */
 976 }
 977
 978
 979 /*******************************************************************
 980  *         BuildSpec16Files
 981  *
 982  * Build a Win16 assembly file from a spec file.
 983  */
 984 static void BuildSpec16Files(void)
 985 {
 986     ORDDEF *odp;
 987     ORDFUNCDEF *fdp;
 988     ORDRETDEF *rdp;
 989     int i;
 990     int code_offset, data_offset, module_size;
 991     unsigned char *data;
 992
 993     data = (unsigned char *)xmalloc( 0x10000 );
 994     memset( data, 0, 16 );
 995     data_offset = 16;
 996
 997     printf( "/* File generated automatically; do not edit! */\n" );
 998     printf( "\t.text\n" );
 999     printf( "Code_Start:\n" );
1000     code_offset = 0;
1001
1002     odp = OrdinalDefinitions;
1003     for (i = 0; i <= Limit; i++, odp++)
1004     {
1005         fdp = odp->additional_data;
1006         rdp = odp->additional_data;
1007
1008         switch (odp->type)
1009         {
1010           case TYPE_INVALID:
1011             odp->offset = 0xffff;
1012             break;
1013
1014           case TYPE_ABS:
1015             odp->offset = (int)odp->additional_data & 0xffff;
1016             break;
1017
1018           case TYPE_BYTE:
1019             printf( "/* %s.%d */\n", DLLName, i);
1020             odp->offset = data_offset;
1021             data_offset += StoreVariableCode( data, 1, odp);
1022             break;
1023
1024           case TYPE_WORD:
1025             printf( "/* %s.%d */\n", DLLName, i);
1026             odp->offset = data_offset;
1027             data_offset += StoreVariableCode( data, 2, odp);
1028             break;
1029
1030           case TYPE_LONG:
1031             printf( "/* %s.%d */\n", DLLName, i);
1032             odp->offset = data_offset;
1033             data_offset += StoreVariableCode( data, 4, odp);
1034             break;
1035
1036           case TYPE_RETURN:
1037             printf( "/* %s.%d */\n", DLLName, i);
1038             printf( "\tmovw $%d,%%ax\n", rdp->ret_value & 0xffff );
1039             printf( "\tmovw $%d,%%dx\n", (rdp->ret_value >> 16) & 0xffff);
1040             printf( "\t.byte 0x66\n");
1041             if (rdp->arg_size != 0)
1042                 printf( "\tlret $%d\n\n", rdp->arg_size);
1043             else
1044             {
1045                 printf( "\tlret\n");
1046                 printf( "\tnop\n");
1047                 printf( "\tnop\n\n");
1048             }
1049             odp->offset = code_offset;
1050             code_offset += 12;  /* Assembly code is 12 bytes long */
1051             break;
1052
1053           case TYPE_REGISTER:
1054           case TYPE_PASCAL:
1055           case TYPE_PASCAL_16:
1056           case TYPE_STUB:
1057             printf( "/* %s.%d */\n", DLLName, i);
1058             printf( "\tpushw %%bp\n" );
1059             printf( "\tpushl $" PREFIX "%s\n", fdp->internal_name );
1060             printf( "\tlcall $0x%04x, $" PREFIX "CallFrom16_%s_%s\n",
1061                     WINE_CODE_SELECTOR,
1062                     (odp->type == TYPE_REGISTER) ? "regs" :
1063                     (odp->type == TYPE_PASCAL) ? "long" : "word",
1064                     fdp->arg_types );
1065             printf( "\tnop\n" );
1066             printf( "\tnop\n\n" );
1067             odp->offset = code_offset;
1068             code_offset += 16;  /* Assembly code is 16 bytes long */
1069             break;
1070
1071           default:
1072             fprintf(stderr,"build: function type %d not available for Win16\n",
1073                     odp->type);
1074             exit(1);
1075         }
1076     }
1077
1078     if (!code_offset)  /* Make sure the code segment is not empty */
1079     {
1080         printf( "\t.byte 0\n" );
1081         code_offset++;
1082     }
1083
1084     /* Output data segment */
1085
1086     DumpBytes( data, data_offset, NULL, "Data_Start" );
1087
1088     /* Build the module */
1089
1090     module_size = BuildModule16( code_offset, data_offset );
1091
1092     /* Output the DLL descriptor */
1093
1094     printf( "\t.text\n" );
1095     printf( "DLLName:\t.ascii \"%s\\0\"\n", DLLName );
1096     printf( "\t.align 4\n" );
1097     printf( "\t.globl " PREFIX "%s_Descriptor\n", DLLName );
1098     printf( PREFIX "%s_Descriptor:\n", DLLName );
1099     printf( "\t.long DLLName\n" );          /* Name */
1100     printf( "\t.long Module_Start\n" );     /* Module start */
1101     printf( "\t.long %d\n", module_size );  /* Module size */
1102     printf( "\t.long Code_Start\n" );       /* Code start */
1103     printf( "\t.long Data_Start\n" );       /* Data start */
1104 }
1105
1106
1107 /*******************************************************************
1108  *         BuildSpecFiles
1109  *
1110  * Build an assembly file from a spec file.
1111  */
1112 static void BuildSpecFiles( char *specname )
1113 {
1114     SpecFp = fopen( specname, "r");
1115     if (SpecFp == NULL)
1116     {
1117         fprintf(stderr, "Could not open specification file, '%s'\n", specname);
1118         exit(1);
1119     }
1120
1121     ParseTopLevel();
1122     switch(SpecType)
1123     {
1124     case SPEC_INVALID:
1125         fprintf( stderr, "%s: Missing 'type' declaration\n", specname );
1126         exit(1);
1127     case SPEC_WIN16:
1128         BuildSpec16Files();
1129         break;
1130     case SPEC_WIN32:
1131         BuildSpec32Files();
1132         break;
1133     }
1134 }
1135
1136
1137 /*******************************************************************
1138  *         BuildCall32LargeStack
1139  *
1140  * Build the function used to switch to the original 32-bit stack
1141  * before calling a 32-bit function from 32-bit code. This is used for
1142  * functions that need a large stack, like X bitmaps functions.
1143  *
1144  * The generated function has the following prototype:
1145  *   int CallTo32_LargeStack( int (*func)(), int nbargs, ... )
1146  *
1147  * Stack layout:
1148  *   ...     ...
1149  * (ebp+20)  arg2
1150  * (ebp+16)  arg1
1151  * (ebp+12)  nbargs
1152  * (ebp+8)   func
1153  * (ebp+4)   ret addr
1154  * (ebp)     ebp
1155  */
1156 static void BuildCall32LargeStack(void)
1157 {
1158     /* Function header */
1159
1160     printf( "/**********\n" );
1161     printf( " * " PREFIX "CallTo32_LargeStack\n" );
1162     printf( " **********/\n" );
1163     printf( "\t.align 4\n" );
1164     printf( "\t.globl " PREFIX "CallTo32_LargeStack\n\n" );
1165     printf( PREFIX "CallTo32_LargeStack:\n" );
1166
1167     /* Entry code */
1168
1169     printf( "\tpushl %%ebp\n" );
1170     printf( "\tmovl %%esp,%%ebp\n" );
1171
1172     /* Save registers */
1173
1174     printf( "\tpushl %%ecx\n" );
1175     printf( "\tpushl %%esi\n" );
1176     printf( "\tpushl %%edi\n" );
1177
1178     /* Retrieve the original 32-bit stack pointer and switch to it if any */
1179
1180     printf( "\tmovl " PREFIX "IF1632_Original32_esp, %%eax\n" );
1181     printf( "\torl %%eax,%%eax\n" );
1182     printf( "\tje no_orig_esp\n" );
1183     printf( "\tmovl %%eax,%%esp\n" );
1184     printf( "no_orig_esp:\n" );
1185
1186     /* Transfer the arguments */
1187
1188     printf( "\tmovl 12(%%ebp),%%ecx\n" );
1189     printf( "\torl %%ecx,%%ecx\n" );
1190     printf( "\tje no_args\n" );
1191     printf( "\tleal 16(%%ebp),%%esi\n" );
1192     printf( "\tshll $2,%%ecx\n" );
1193     printf( "\tsubl %%ecx,%%esp\n" );
1194     printf( "\tmovl %%esp,%%edi\n" );
1195     printf( "\tshrl $2,%%ecx\n" );
1196     printf( "\tcld\n" );
1197     printf( "\trep; movsl\n" );
1198     printf( "no_args:\n" );
1199
1200     /* Call the function */
1201
1202     printf( "\tcall 8(%%ebp)\n" );
1203
1204     /* Switch back to the normal stack */
1205
1206     printf( "\tleal -12(%%ebp),%%esp\n" );
1207
1208     /* Restore registers and return */
1209
1210     printf( "\tpopl %%edi\n" );
1211     printf( "\tpopl %%esi\n" );
1212     printf( "\tpopl %%ecx\n" );
1213     printf( "\tpopl %%ebp\n" );
1214     printf( "\tret\n" );
1215 }
1216
1217
1218 /*******************************************************************
1219  *         TransferArgs16To32
1220  *
1221  * Get the arguments from the 16-bit stack and push them on the 32-bit stack.
1222  * The 16-bit stack layout is:
1223  *   ...     ...
1224  *  (bp+8)    arg2
1225  *  (bp+6)    arg1
1226  *  (bp+4)    cs
1227  *  (bp+2)    ip
1228  *  (bp)      bp
1229  */
1230 static int TransferArgs16To32( char *args )
1231 {
1232     int i, pos16, pos32;
1233
1234     /* Save ebx first */
1235
1236     printf( "\tpushl %%ebx\n" );
1237
1238     /* Get the 32-bit stack pointer */
1239
1240     printf( "\tmovl " PREFIX "IF1632_Saved32_esp,%%ebx\n" );
1241
1242     /* Copy the arguments */
1243
1244     pos16 = 6;  /* skip bp and return address */
1245     pos32 = 0;
1246
1247     for (i = strlen(args); i > 0; i--)
1248     {
1249         pos32 -= 4;
1250         switch(args[i-1])
1251         {
1252         case 'w':  /* word */
1253             printf( "\tmovzwl %d(%%ebp),%%eax\n", pos16 );
1254             printf( "\tmovl %%eax,%d(%%ebx)\n", pos32 );
1255             pos16 += 2;
1256             break;
1257
1258         case 's':  /* s_word */
1259             printf( "\tmovswl %d(%%ebp),%%eax\n", pos16 );
1260             printf( "\tmovl %%eax,%d(%%ebx)\n", pos32 );
1261             pos16 += 2;
1262             break;
1263
1264         case 'l':  /* long */
1265             printf( "\tmovl %d(%%ebp),%%eax\n", pos16 );
1266             printf( "\tmovl %%eax,%d(%%ebx)\n", pos32 );
1267             pos16 += 4;
1268             break;
1269
1270         case 'p':  /* ptr */
1271             /* Get the selector */
1272             printf( "\tmovw %d(%%ebp),%%ax\n", pos16 + 2 );
1273             /* Get the selector base */
1274             printf( "\tandl $0xfff8,%%eax\n" );
1275             printf( "\tmovl " PREFIX "ldt_copy(%%eax),%%eax\n" );
1276             printf( "\tmovl %%eax,%d(%%ebx)\n", pos32 );
1277             /* Add the offset */
1278             printf( "\tmovzwl %d(%%ebp),%%eax\n", pos16 );
1279             printf( "\taddl %%eax,%d(%%ebx)\n", pos32 );
1280             pos16 += 4;
1281             break;
1282
1283         default:
1284             fprintf( stderr, "Unknown arg type '%c'\n", args[i-1] );
1285         }
1286     }
1287
1288     /* Restore ebx */
1289
1290     printf( "\tpopl %%ebx\n" );
1291
1292     return pos16 - 6;  /* Return the size of the 16-bit args */
1293 }
1294
1295
1296 /*******************************************************************
1297  *         BuildContext
1298  *
1299  * Build the context structure on the 32-bit stack.
1300  * The only valid registers in the context structure are:
1301  *   eax, ebx, ecx, edx, esi, edi, ds, es, (some of the) flags
1302  */
1303 static void BuildContext(void)
1304 {
1305     /* Save ebx first */
1306
1307     printf( "\tpushl %%ebx\n" );
1308
1309     /* Get the 32-bit stack pointer */
1310
1311     printf( "\tmovl " PREFIX "IF1632_Saved32_esp,%%ebx\n" );
1312
1313     /* Store the registers */
1314
1315     printf( "\tpopl %d(%%ebx)\n", CONTEXTOFFSET(EBX) ); /* Get ebx from stack*/
1316     printf( "\tmovl %%eax,%d(%%ebx)\n", CONTEXTOFFSET(EAX) );
1317     printf( "\tmovl %%ecx,%d(%%ebx)\n", CONTEXTOFFSET(ECX) );
1318     printf( "\tmovl %%edx,%d(%%ebx)\n", CONTEXTOFFSET(EDX) );
1319     printf( "\tmovl %%esi,%d(%%ebx)\n", CONTEXTOFFSET(ESI) );
1320     printf( "\tmovl %%edi,%d(%%ebx)\n", CONTEXTOFFSET(EDI) );
1321     printf( "\tmovw -10(%%ebp),%%ax\n" );  /* Get saved ds from stack */
1322     printf( "\tmovw %%ax,%d(%%ebx)\n", CONTEXTOFFSET(DS) );
1323     printf( "\tmovw -6(%%ebp),%%ax\n" );  /* Get saved es from stack */
1324     printf( "\tmovw %%ax,%d(%%ebx)\n", CONTEXTOFFSET(ES) );
1325     printf( "\tpushfl\n" );
1326     printf( "\tpopl %d(%%ebx)\n", CONTEXTOFFSET(EFL) );
1327 }
1328
1329
1330 /*******************************************************************
1331  *         RestoreContext
1332  *
1333  * Restore the registers from the context structure
1334  */
1335 static void RestoreContext(void)
1336 {
1337     /* Get the 32-bit stack pointer */
1338
1339     printf( "\tmovl " PREFIX "IF1632_Saved32_esp,%%ebx\n" );
1340
1341     /* Restore the registers */
1342
1343     printf( "\tmovl %d(%%ebx),%%ecx\n", CONTEXTOFFSET(ECX) );
1344     printf( "\tmovl %d(%%ebx),%%edx\n", CONTEXTOFFSET(EDX) );
1345     printf( "\tmovl %d(%%ebx),%%esi\n", CONTEXTOFFSET(ESI) );
1346     printf( "\tmovl %d(%%ebx),%%edi\n", CONTEXTOFFSET(EDI) );
1347     printf( "\tpopl %%eax\n" );  /* Remove old ds and ip from stack */
1348     printf( "\tpopl %%eax\n" );  /* Remove old cs and es from stack */
1349     printf( "\tpushw %d(%%ebx)\n", CONTEXTOFFSET(DS) ); /* Push new ds */
1350     printf( "\tpushw %d(%%ebx)\n", CONTEXTOFFSET(ES) ); /* Push new es */
1351     printf( "\tpushl %d(%%ebx)\n", CONTEXTOFFSET(EFL) );
1352     printf( "\tpopfl\n" );
1353     printf( "\tmovl %d(%%ebx),%%eax\n", CONTEXTOFFSET(EAX) );
1354     printf( "\tmovl %d(%%ebx),%%ebx\n", CONTEXTOFFSET(EBX) );
1355 }
1356
1357
1358 /*******************************************************************
1359  *         BuildCallFrom16Func
1360  *
1361  * Build a 16-bit-to-Wine callback function. The syntax of the function
1362  * profile is: type_xxxxx, where 'type' is one of 'regs', 'word' or
1363  * 'long' and each 'x' is an argument ('w'=word, 's'=signed word,
1364  * 'l'=long, 'p'=pointer).
1365  * For register functions, the arguments are ignored, but they are still
1366  * removed from the stack upon return.
1367  *
1368  * Stack layout upon entry to the callback function:
1369  *  ...           ...
1370  * (sp+18) word   first 16-bit arg
1371  * (sp+16) word   cs
1372  * (sp+14) word   ip
1373  * (sp+12) word   bp
1374  * (sp+8)  long   32-bit entry point
1375  * (sp+6)  word   high word of cs (always 0, used to store es)
1376  * (sp+4)  word   low word of cs of 16-bit entry point
1377  * (sp+2)  word   high word of ip (always 0, used to store ds)
1378  * (sp)    word   low word of ip of 16-bit entry point
1379  *
1380  */
1381 static void BuildCallFrom16Func( char *profile )
1382 {
1383     int argsize = 0;
1384     int short_ret = 0;
1385     int reg_func = 0;
1386     char *args = profile + 5;
1387
1388     /* Parse function type */
1389
1390     if (!strncmp( "word_", profile, 5 )) short_ret = 1;
1391     else if (!strncmp( "regs_", profile, 5 )) reg_func = 1;
1392     else if (strncmp( "long_", profile, 5 ))
1393     {
1394         fprintf( stderr, "Invalid function name '%s', ignored\n", profile );
1395         return;
1396     }
1397
1398     /* Function header */
1399
1400     printf( "/**********\n" );
1401     printf( " * " PREFIX "CallFrom16_%s\n", profile );
1402     printf( " **********/\n" );
1403     printf( "\t.align 4\n" );
1404     printf( "\t.globl " PREFIX "CallFrom16_%s\n\n", profile );
1405     printf( PREFIX "CallFrom16_%s:\n", profile );
1406
1407     /* Setup bp to point to its copy on the stack */
1408
1409     printf( "\tmovzwl %%sp,%%ebp\n" );
1410     printf( "\taddw $12,%%bp\n" );
1411
1412     /* Save 16-bit ds and es */
1413
1414     printf( "\tmovw %%ds,-10(%%ebp)\n" );
1415     printf( "\tmovw %%es,-6(%%ebp)\n" );
1416
1417     /* Restore 32-bit ds and es */
1418
1419     printf( "\tpushl $0x%04x%04x\n", WINE_DATA_SELECTOR, WINE_DATA_SELECTOR );
1420     printf( "\tpopw %%ds\n" );
1421     printf( "\tpopw %%es\n" );
1422
1423
1424     /* Save the 16-bit stack */
1425
1426     printf( "\tpushw " PREFIX "IF1632_Saved16_sp\n" );
1427     printf( "\tpushw " PREFIX "IF1632_Saved16_ss\n" );
1428 #ifdef __svr4__
1429     printf("\tdata16\n");
1430 #endif
1431     printf( "\tmovw %%ss," PREFIX "IF1632_Saved16_ss\n" );
1432     printf( "\tmovw %%sp," PREFIX "IF1632_Saved16_sp\n" );
1433
1434     /* Transfer the arguments */
1435
1436     if (reg_func) BuildContext();
1437     else if (*args) argsize = TransferArgs16To32( args );
1438
1439     /* Get the address of the API function */
1440
1441     printf( "\tmovl -4(%%ebp),%%eax\n" );
1442
1443     /* If necessary, save %edx over the API function address */
1444
1445     if (!reg_func && short_ret)
1446         printf( "\tmovl %%edx,-4(%%ebp)\n" );
1447
1448     /* Switch to the 32-bit stack */
1449
1450     printf( "\tmovl " PREFIX "IF1632_Saved32_esp,%%ebp\n" );
1451     printf( "\tpushw %%ds\n" );
1452     printf( "\tpopw %%ss\n" );
1453     printf( "\tleal -%d(%%ebp),%%esp\n",
1454             reg_func ? sizeof(struct sigcontext_struct) : 4 * strlen(args) );
1455
1456     /* Setup %ebp to point to the previous stack frame (built by CallTo16) */
1457
1458     printf( "\taddl $24,%%ebp\n" );
1459
1460     /* Print the debug information before the call */
1461
1462     if (debugging)
1463     {
1464         printf( "\tpushl %%eax\n" );
1465         printf( "\tpushl $Profile_%s\n", profile );
1466         printf( "\tpushl $%d\n", reg_func ? 2 : (short_ret ? 1 : 0) );
1467         printf( "\tcall " PREFIX "RELAY_DebugCallFrom16\n" );
1468         printf( "\tpopl %%eax\n" );
1469         printf( "\tpopl %%eax\n" );
1470         printf( "\tpopl %%eax\n" );
1471     }
1472
1473     /* Call the entry point */
1474
1475     printf( "\tcall %%eax\n" );
1476
1477     /* Print the debug information after the call */
1478
1479     if (debugging)
1480     {
1481         printf( "\tpushl %%eax\n" );
1482         printf( "\tpushl $%d\n", reg_func ? 2 : (short_ret ? 1 : 0) );
1483         printf( "\tcall " PREFIX "RELAY_DebugCallFrom16Ret\n" );
1484         printf( "\tpopl %%eax\n" );
1485         printf( "\tpopl %%eax\n" );
1486     }
1487
1488     /* Restore the 16-bit stack */
1489
1490 #ifdef __svr4__
1491     printf( "\tdata16\n");
1492 #endif
1493     printf( "\tmovw " PREFIX "IF1632_Saved16_ss,%%ss\n" );
1494     printf( "\tmovw " PREFIX "IF1632_Saved16_sp,%%sp\n" );
1495 #ifdef __svr4__
1496     printf( "\tdata16\n");
1497 #endif
1498     printf( "\tpopw " PREFIX "IF1632_Saved16_ss\n" );
1499 #ifdef __svr4__
1500     printf( "\tdata16\n");
1501 #endif
1502     printf( "\tpopw " PREFIX "IF1632_Saved16_sp\n" );
1503
1504     if (reg_func)
1505     {
1506         /* Restore registers from the context structure */
1507         RestoreContext();
1508
1509         /* Calc the arguments size */
1510         while (*args)
1511         {
1512             switch(*args)
1513             {
1514             case 'w':
1515             case 's':
1516                 argsize += 2;
1517                 break;
1518             case 'p':
1519             case 'l':
1520                 argsize += 4;
1521                 break;
1522             default:
1523                 fprintf( stderr, "Unknown arg type '%c'\n", *args );
1524             }
1525             args++;
1526         }
1527
1528         /* Restore ds and es */
1529         printf( "\tpopw %%es\n" );
1530         printf( "\tpopw %%ds\n" );
1531
1532         /* Remove the entry point from the stack */
1533         /* (we don't use add to avoid modifying the carry flag) */
1534         printf( "\tpopl %%ebp\n" );
1535     }
1536     else
1537     {
1538         /* Restore ds and es */
1539         printf( "\tpopw %%bp\n" );       /* Remove ip */
1540         printf( "\tpopl %%ebp\n" );      /* Remove ds and cs */
1541         printf( "\tmovw %%bp,%%ds\n" );  /* Restore ds */
1542         printf( "\tpopw %%es\n" );       /* Restore es */
1543
1544         if (short_ret) printf( "\tpopl %%edx\n" );     /* Restore edx */
1545         else
1546         {
1547             /* Get the return value into dx:ax */
1548             printf( "\tpushl %%eax\n" );
1549             printf( "\tpopw %%ax\n" );
1550             printf( "\tpopw %%dx\n" );
1551             /* Remove API entry point */
1552             printf( "\taddl $4,%%esp\n" );
1553         }
1554     }
1555
1556     /* Restore bp */
1557
1558     printf( "\tpopw %%bp\n" );
1559
1560     /* Remove the arguments and return */
1561
1562     if (argsize)
1563     {
1564         printf( "\t.byte 0x66\n" );
1565         printf( "\tlret $%d\n", argsize );
1566     }
1567     else
1568     {
1569         printf( "\t.byte 0x66\n" );
1570         printf( "\tlret\n" );
1571     }
1572 }
1573
1574
1575 /*******************************************************************
1576  *         BuildCallTo16Func
1577  *
1578  * Build a Wine-to-16-bit callback function.
1579  *
1580  * Stack frame of the callback function:
1581  *  ...      ...
1582  * (ebp+24) arg2
1583  * (ebp+20) arg1
1584  * (ebp+16) 16-bit ds
1585  * (ebp+12) func to call
1586  * (ebp+8)  code selector
1587  * (ebp+4)  return address
1588  * (ebp)    previous ebp
1589  *
1590  * Prototypes for the CallTo16 functions:
1591  *   extern WORD CallTo16_word_xxx( FARPROC func, WORD ds, args... );
1592  *   extern LONG CallTo16_long_xxx( FARPROC func, WORD ds, args... );
1593  *   extern void CallTo16_regs_( FARPROC func, WORD ds, WORD es, WORD bp,
1594  *                               WORD ax, WORD bx, WORD cx, WORD dx,
1595  *                               WORD si, WORD di );
1596  */
1597 static void BuildCallTo16Func( char *profile )
1598 {
1599     int short_ret = 0;
1600     int reg_func = 0;
1601     char *args = profile + 5;
1602
1603     if (!strncmp( "word_", profile, 5 )) short_ret = 1;
1604     else if (!strncmp( "regs_", profile, 5 )) reg_func = short_ret = 1;
1605     else if (strncmp( "long_", profile, 5 ))
1606     {
1607         fprintf( stderr, "Invalid function name '%s', ignored\n", profile );
1608         return;
1609     }
1610
1611     /* Function header */
1612
1613     printf( "/**********\n" );
1614     printf( " * " PREFIX "CallTo16_%s\n", profile );
1615     printf( " **********/\n" );
1616     printf( "\t.align 4\n" );
1617     printf( "\t.globl " PREFIX "CallTo16_%s\n\n", profile );
1618     printf( PREFIX "CallTo16_%s:\n", profile );
1619
1620     /* Push code selector before return address to simulate a lcall */
1621
1622     printf( "\tpopl %%eax\n" );
1623     printf( "\tpushl $0x%04x\n", WINE_CODE_SELECTOR );
1624     printf( "\tpushl %%eax\n" );
1625
1626     /* Entry code */
1627
1628     printf( "\tpushl %%ebp\n" );
1629     printf( "\tmovl %%esp,%%ebp\n" );
1630
1631     /* Save the 32-bit registers */
1632
1633     printf( "\tpushl %%ebx\n" );
1634     printf( "\tpushl %%ecx\n" );
1635     printf( "\tpushl %%edx\n" );
1636     printf( "\tpushl %%esi\n" );
1637     printf( "\tpushl %%edi\n" );
1638
1639     /* Save the 32-bit stack */
1640
1641     printf( "\tpushl " PREFIX "IF1632_Saved32_esp\n" );
1642     printf( "\tmovl %%esp," PREFIX "IF1632_Saved32_esp\n" );
1643     printf( "\tmovl %%ebp,%%ebx\n" );
1644
1645     /* Print debugging info */
1646
1647     if (debugging)
1648     {
1649         /* Push the address of the first argument */
1650         printf( "\tmovl %%ebx,%%eax\n" );
1651         printf( "\taddl $12,%%eax\n" );
1652         printf( "\tpushl $%d\n", reg_func ? 8 : strlen(args) );
1653         printf( "\tpushl %%eax\n" );
1654         printf( "\tcall " PREFIX "RELAY_DebugCallTo16\n" );
1655         printf( "\tpopl %%eax\n" );
1656         printf( "\tpopl %%eax\n" );
1657     }
1658
1659     /* Switch to the 16-bit stack */
1660
1661 #ifdef __svr4__
1662     printf("\tdata16\n");
1663 #endif
1664     printf( "\tmovw " PREFIX "IF1632_Saved16_ss,%%ss\n" );
1665     printf( "\tmovw " PREFIX "IF1632_Saved16_sp,%%sp\n" );
1666
1667     /* Transfer the arguments */
1668
1669     if (reg_func)
1670     {
1671         /* Get the registers. ebx is handled later on. */
1672         printf( "\tpushw 20(%%ebx)\n" );
1673         printf( "\tpopw %%es\n" );
1674         printf( "\tmovl 24(%%ebx),%%ebp\n" );
1675         printf( "\tmovl 28(%%ebx),%%eax\n" );
1676         printf( "\tmovl 36(%%ebx),%%ecx\n" );
1677         printf( "\tmovl 40(%%ebx),%%edx\n" );
1678         printf( "\tmovl 44(%%ebx),%%esi\n" );
1679         printf( "\tmovl 48(%%ebx),%%edi\n" );
1680     }
1681     else  /* not a register function */
1682     {
1683         int pos = 20;  /* first argument position */
1684
1685         /* Make %bp point to the previous stackframe (built by CallFrom16) */
1686         printf( "\tmovw %%sp,%%bp\n" );
1687         printf( "\taddw $16,%%bp\n" );
1688
1689         while (*args)
1690         {
1691             switch(*args++)
1692             {
1693             case 'w': /* word */
1694                 printf( "\tpushw %d(%%ebx)\n", pos );
1695                 break;
1696             case 'l': /* long */
1697                 printf( "\tpushl %d(%%ebx)\n", pos );
1698                 break;
1699             }
1700             pos += 4;
1701         }
1702     }
1703
1704     /* Push the return address */
1705
1706     printf( "\tpushl " PREFIX "CALLTO16_RetAddr_%s\n",
1707             short_ret ? "word" : "long" );
1708
1709     /* Push the called routine address */
1710
1711     printf( "\tpushl 12(%%ebx)\n" );
1712
1713     /* Get the 16-bit ds */
1714
1715     if (reg_func)
1716     {
1717         printf( "\tpushw 16(%%ebx)\n" );
1718         printf( "\tmovl 32(%%ebx),%%ebx\n" ); /*Get ebx from the 32-bit stack*/
1719         printf( "\tpopw %%ds\n" );
1720     }
1721     else
1722     {
1723         /* Set ax equal to ds for window procedures */
1724         printf( "\tmovw 16(%%ebx),%%ax\n" );
1725 #ifdef __svr4__
1726         printf( "\tdata16\n");
1727 #endif
1728         printf( "\tmovw %%ax,%%ds\n" );
1729     }
1730
1731     /* Jump to the called routine */
1732
1733     printf( "\t.byte 0x66\n" );
1734     printf( "\tlret\n" );
1735 }
1736
1737
1738 /*******************************************************************
1739  *         BuildRet16Func
1740  *
1741  * Build the return code for 16-bit callbacks
1742  */
1743 static void BuildRet16Func()
1744 {
1745     printf( "\t.globl " PREFIX "CALLTO16_Ret_word\n" );
1746     printf( "\t.globl " PREFIX "CALLTO16_Ret_long\n" );
1747
1748     /* Put return value into eax */
1749
1750     printf( PREFIX "CALLTO16_Ret_long:\n" );
1751     printf( "\tpushw %%dx\n" );
1752     printf( "\tpushw %%ax\n" );
1753     printf( "\tpopl %%eax\n" );
1754     printf( PREFIX "CALLTO16_Ret_word:\n" );
1755
1756     /* Restore 32-bit segment registers */
1757
1758     printf( "\tmovw $0x%04x,%%bx\n", WINE_DATA_SELECTOR );
1759 #ifdef __svr4__
1760     printf( "\tdata16\n");
1761 #endif
1762     printf( "\tmovw %%bx,%%ds\n" );
1763 #ifdef __svr4__
1764     printf( "\tdata16\n");
1765 #endif
1766     printf( "\tmovw %%bx,%%es\n" );
1767 #ifdef __svr4__
1768     printf( "\tdata16\n");
1769 #endif
1770     printf( "\tmovw %%bx,%%ss\n" );
1771
1772     /* Restore the 32-bit stack */
1773
1774     printf( "\tmovl " PREFIX "IF1632_Saved32_esp,%%esp\n" );
1775     printf( "\tpopl " PREFIX "IF1632_Saved32_esp\n" );
1776
1777     /* Restore the 32-bit registers */
1778
1779     printf( "\tpopl %%edi\n" );
1780     printf( "\tpopl %%esi\n" );
1781     printf( "\tpopl %%edx\n" );
1782     printf( "\tpopl %%ecx\n" );
1783     printf( "\tpopl %%ebx\n" );
1784
1785     /* Return to caller */
1786
1787     printf( "\tpopl %%ebp\n" );
1788     printf( "\tlret\n" );
1789
1790     /* Declare the return address variables */
1791
1792     printf( "\t.data\n" );
1793     printf( "\t.globl " PREFIX "CALLTO16_RetAddr_word\n" );
1794     printf( "\t.globl " PREFIX "CALLTO16_RetAddr_long\n" );
1795     printf( PREFIX "CALLTO16_RetAddr_word:\t.long 0\n" );
1796     printf( PREFIX "CALLTO16_RetAddr_long:\t.long 0\n" );
1797     printf( "\t.text\n" );
1798 }
1799
1800
1801 /*******************************************************************
1802  *         BuildCallFrom32Func
1803  *
1804  * Build a 32-bit-to-Wine call-back function.
1805  * 'args' is the number of dword arguments.
1806  *
1807  * Stack layout:
1808  *   ...     ...
1809  * (ebp+12)  arg2
1810  * (ebp+8)   arg1
1811  * (ebp+4)   ret addr
1812  * (ebp)     ebp
1813  * (ebp-4)   func name
1814  * (ebp-8)   entry point
1815  */
1816 static void BuildCallFrom32Func( int args )
1817 {
1818     /* Function header */
1819
1820     printf( "/**********\n" );
1821     printf( " * " PREFIX "CallFrom32_%d\n", args );
1822     printf( " **********/\n" );
1823     printf( "\t.align 4\n" );
1824     printf( "\t.globl " PREFIX "CallFrom32_%d\n\n", args );
1825     printf( PREFIX "CallFrom32_%d:\n", args );
1826
1827     /* Entry code */
1828
1829     printf( "\tleal 8(%%esp),%%ebp\n" );
1830
1831     /* Print the debugging info */
1832
1833     if (debugging)
1834     {
1835         printf( "\tpushl $%d\n", args );
1836         printf( "\tcall " PREFIX "RELAY_DebugCallFrom32\n" );
1837         printf( "\tadd $4, %%esp\n" );
1838     }
1839
1840     /* Transfer the arguments */
1841
1842     if (args)
1843     {
1844         int i;
1845         for (i = args; i > 0; i--) printf( "\tpushl %d(%%ebp)\n", 4 * i + 4 );
1846     }
1847     else
1848     {
1849         /* Push the address of the arguments. The called function will */
1850         /* ignore this if it really takes no arguments. */
1851         printf( "\tleal 8(%%ebp),%%eax\n" );
1852         printf( "\tpushl %%eax\n" );
1853     }
1854
1855     /* Call the function */
1856
1857     printf( "\tcall -8(%%ebp)\n" );
1858
1859     /* Print the debugging info */
1860
1861     if (debugging)
1862     {
1863         printf( "\tadd $%d,%%esp\n", args ? (args * 4) : 4 );
1864         printf( "\tpushl %%eax\n" );
1865         printf( "\tcall " PREFIX "RELAY_DebugCallFrom32Ret\n" );
1866         printf( "\tpopl %%eax\n" );
1867     }
1868
1869     printf( "\tmovl %%ebp,%%esp\n" );
1870     printf( "\tpopl %%ebp\n" );
1871
1872     /* Return, removing arguments */
1873
1874     if (args) printf( "\tret $%d\n", args * 4 );
1875     else printf( "\tret\n" );
1876 }
1877
1878
1879 /*******************************************************************
1880  *         BuildCallTo32Func
1881  *
1882  * Build a Wine-to-32-bit callback function.
1883  *
1884  * Stack frame of the callback function:
1885  *  ...      ...
1886  * (ebp+16) arg2
1887  * (ebp+12) arg1
1888  * (ebp+8)  func to call
1889  * (ebp+4)  return address
1890  * (ebp)    previous ebp
1891  *
1892  * Prototype for the CallTo32 functions:
1893  *   extern LONG CallTo32_nn( FARPROC func, args... );
1894  */
1895 static void BuildCallTo32Func( int args )
1896 {
1897     /* Function header */
1898
1899     printf( "/**********\n" );
1900     printf( " * " PREFIX "CallTo32_%d\n", args );
1901     printf( " **********/\n" );
1902     printf( "\t.align 4\n" );
1903     printf( "\t.globl " PREFIX "CallTo32_%d\n\n", args );
1904     printf( PREFIX "CallTo32_%d:\n", args );
1905
1906     /* Entry code */
1907
1908     printf( "\tpushl %%ebp\n" );
1909     printf( "\tmovl %%esp,%%ebp\n" );
1910
1911     /* Transfer arguments */
1912
1913     if (args)
1914     {
1915         int i;
1916         for (i = args; i > 0; i--) printf( "\tpushl %d(%%ebp)\n", 4 * i + 8 );
1917     }
1918
1919     /* Print the debugging output */
1920
1921     if (debugging)
1922     {
1923         printf( "\tpushl $%d\n", args );
1924         printf( "\tpushl 8(%%ebp)\n" );
1925         printf( "\tcall " PREFIX "RELAY_DebugCallTo32\n" );
1926         printf( "\taddl $8,%%esp\n" );
1927     }
1928
1929     /* Call the function */
1930
1931     printf( "\tcall 8(%%ebp)\n" );
1932
1933     /* Return to Wine */
1934
1935     printf( "\tmovl %%ebp,%%esp\n" );
1936     printf( "\tpopl %%ebp\n" );
1937     printf( "\tret\n" );
1938 }
1939
1940
1941 static void usage(void)
1942 {
1943     fprintf(stderr, "usage: build -spec SPECNAMES\n"
1944                     "       build -callfrom16 FUNCTION_PROFILES\n"
1945                     "       build -callto16 FUNCTION_PROFILES\n"
1946                     "       build -callfrom32 FUNCTION_PROFILES\n"
1947                     "       build -callto32 FUNCTION_PROFILES\n" );
1948     exit(1);
1949 }
1950
1951
1952 int main(int argc, char **argv)
1953 {
1954     int i;
1955
1956     if (argc <= 2) usage();
1957
1958     if (!strcmp( argv[1], "-spec" ))
1959     {
1960         for (i = 2; i < argc; i++) BuildSpecFiles( argv[i] );
1961     }
1962     else if (!strcmp( argv[1], "-callfrom16" ))  /* 16-bit-to-Wine callbacks */
1963     {
1964         /* File header */
1965
1966         printf( "/* File generated automatically. Do not edit! */\n\n" );
1967         printf( "\t.text\n" );
1968
1969         /* Build the 32-bit large stack callback */
1970
1971         BuildCall32LargeStack();
1972
1973         /* Build the callback functions */
1974
1975         for (i = 2; i < argc; i++) BuildCallFrom16Func( argv[i] );
1976
1977         /* Output the argument debugging strings */
1978
1979         if (debugging)
1980         {
1981             printf( "/* Argument strings */\n" );
1982             for (i = 2; i < argc; i++)
1983             {
1984                 printf( "Profile_%s:\n", argv[i] );
1985                 printf( "\t.ascii \"%s\\0\"\n", argv[i] + 5 );
1986             }
1987         }
1988     }
1989     else if (!strcmp( argv[1], "-callto16" ))  /* Wine-to-16-bit callbacks */
1990     {
1991         /* File header */
1992
1993         printf( "/* File generated automatically. Do not edit! */\n\n" );
1994         printf( "\t.text\n" );
1995         printf( "\t.globl " PREFIX "CALLTO16_Start\n" );
1996         printf( PREFIX "CALLTO16_Start:\n" );
1997
1998         /* Build the callback functions */
1999
2000         for (i = 2; i < argc; i++) BuildCallTo16Func( argv[i] );
2001
2002         /* Output the 16-bit return code */
2003
2004         BuildRet16Func();
2005
2006         printf( "\t.globl " PREFIX "CALLTO16_End\n" );
2007         printf( PREFIX "CALLTO16_End:\n" );
2008     }
2009     else if (!strcmp( argv[1], "-callfrom32" ))  /* 32-bit-to-Wine callbacks */
2010     {
2011         /* File header */
2012
2013         printf( "/* File generated automatically. Do not edit! */\n\n" );
2014         printf( "\t.text\n" );
2015
2016         /* Build the callback functions */
2017
2018         for (i = 2; i < argc; i++) BuildCallFrom32Func( atoi(argv[i]) );
2019     }
2020     else if (!strcmp( argv[1], "-callto32" ))  /* Wine-to-32-bit callbacks */
2021     {
2022         /* File header */
2023
2024         printf( "/* File generated automatically. Do not edit! */\n\n" );
2025         printf( "\t.text\n" );
2026
2027         /* Build the callback functions */
2028
2029         for (i = 2; i < argc; i++) BuildCallTo32Func( atoi(argv[i]) );
2030     }
2031     else usage();
2032
2033     return 0;
2034 }
2035
2036 #endif  /* WINELIB */