reactos/tools/winebuild/spec16.c

   1 /*
   2  * 16-bit spec files
   3  *
   4  * Copyright 1993 Robert J. Amstadt
   5  * Copyright 1995 Martin von Loewis
   6  * Copyright 1995, 1996, 1997 Alexandre Julliard
   7  * Copyright 1997 Eric Youngdale
   8  * Copyright 1999 Ulrich Weigand
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23  */
  24
  25 #include "config.h"
  26
  27 #include <assert.h>
  28 #include <ctype.h>
  29
  30 #include "wine/exception.h"
  31 #include "wine/winbase16.h"
  32
  33 #include "build.h"
  34
  35
  36 /*******************************************************************
  37  *         get_cs
  38  */
  39 static inline unsigned short get_cs(void)
  40 {
  41     unsigned short res = 0;
  42 #ifdef __i386__
  43 # ifdef __GNUC__
  44     __asm__("movw %%cs,%w0" : "=r"(res));
  45 # elif defined(_MSC_VER)
  46     __asm { mov res, cs }
  47 # endif
  48 #endif /* __i386__ */
  49     return res;
  50 }
  51
  52
  53 /*******************************************************************
  54  *         output_file_header
  55  *
  56  * Output a file header with the common declarations we need.
  57  */
  58 static void output_file_header( FILE *outfile )
  59 {
  60     output_standard_file_header( outfile );
  61     fprintf( outfile, "extern struct\n{\n" );
  62     fprintf( outfile, "  void *base[8192];\n" );
  63     fprintf( outfile, "  unsigned long limit[8192];\n" );
  64     fprintf( outfile, "  unsigned char flags[8192];\n" );
  65     fprintf( outfile, "} wine_ldt_copy;\n\n" );
  66     fprintf( outfile, "#define __stdcall __attribute__((__stdcall__))\n\n" );
  67 }
  68
  69
  70 /*******************************************************************
  71  *         output_entry_table
  72  */
  73 static int output_entry_table( unsigned char **ret_buff, DLLSPEC *spec )
  74 {
  75     int i, prev = 0, prev_sel = -1;
  76     unsigned char *pstr, *buffer;
  77     unsigned char *bundle = NULL;
  78
  79     buffer = xmalloc( spec->limit * 5 );  /* we use at most 5 bytes per entry-point */
  80     pstr = buffer;
  81
  82     for (i = 1; i <= spec->limit; i++)
  83     {
  84         int selector = 0;
  85         WORD offset;
  86         ORDDEF *odp = spec->ordinals[i];
  87         if (!odp) continue;
  88
  89         switch (odp->type)
  90         {
  91         case TYPE_CDECL:
  92         case TYPE_PASCAL:
  93         case TYPE_VARARGS:
  94         case TYPE_STUB:
  95             selector = 1;  /* Code selector */
  96             break;
  97         case TYPE_VARIABLE:
  98             selector = 2;  /* Data selector */
  99             break;
 100         case TYPE_ABS:
 101             selector = 0xfe;  /* Constant selector */
 102             break;
 103         default:
 104             continue;
 105         }
 106
 107         if (!bundle || prev + 1 != i || prev_sel != selector || *bundle == 255)
 108         {
 109             /* need to start a new bundle */
 110
 111             if (prev + 1 != i)
 112             {
 113                 int skip = i - (prev + 1);
 114                 while (skip > 255)
 115                 {
 116                     *pstr++ = 255;
 117                     *pstr++ = 0;
 118                     skip -= 255;
 119                 }
 120                 *pstr++ = skip;
 121                 *pstr++ = 0;
 122             }
 123
 124             bundle = pstr;
 125             *pstr++ = 0;
 126             *pstr++ = selector;
 127             prev_sel = selector;
 128         }
 129         /* output the entry */
 130         *pstr++ = 3;  /* flags: exported & public data */
 131         offset = odp->offset;
 132         memcpy( pstr, &offset, sizeof(WORD) );
 133         pstr += sizeof(WORD);
 134         (*bundle)++;  /* increment bundle entry count */
 135         prev = i;
 136     }
 137     *pstr++ = 0;
 138     if ((pstr - buffer) & 1) *pstr++ = 0;
 139     *ret_buff = xrealloc( buffer, pstr - buffer );
 140     return pstr - buffer;
 141 }
 142
 143
 144 /*******************************************************************
 145  *         output_bytes
 146  */
 147 static void output_bytes( FILE *outfile, const void *buffer, unsigned int size )
 148 {
 149     unsigned int i;
 150     const unsigned char *ptr = buffer;
 151
 152     fprintf( outfile, "  {" );
 153     for (i = 0; i < size; i++)
 154     {
 155         if (!(i & 7)) fprintf( outfile, "\n   " );
 156         fprintf( outfile, " 0x%02x", *ptr++ );
 157         if (i < size - 1) fprintf( outfile, "," );
 158     }
 159     fprintf( outfile, "\n  },\n" );
 160 }
 161
 162
 163 /*******************************************************************
 164  *         BuildCallFrom16Func
 165  *
 166  * Build a 16-bit-to-Wine callback glue function.
 167  *
 168  * The generated routines are intended to be used as argument conversion
 169  * routines to be called by the CallFrom16... core. Thus, the prototypes of
 170  * the generated routines are (see also CallFrom16):
 171  *
 172  *  extern WORD WINAPI PREFIX_CallFrom16_C_word_xxx( FARPROC func, LPBYTE args );
 173  *  extern LONG WINAPI PREFIX_CallFrom16_C_long_xxx( FARPROC func, LPBYTE args );
 174  *  extern void WINAPI PREFIX_CallFrom16_C_regs_xxx( FARPROC func, LPBYTE args,
 175  *                                                   CONTEXT86 *context );
 176  *
 177  * where 'C' is the calling convention ('p' for pascal or 'c' for cdecl),
 178  * and each 'x' is an argument  ('w'=word, 's'=signed word, 'l'=long,
 179  * 'p'=linear pointer, 't'=linear pointer to null-terminated string,
 180  * 'T'=segmented pointer to null-terminated string).
 181  *
 182  * The generated routines fetch the arguments from the 16-bit stack (pointed
 183  * to by 'args'); the offsets of the single argument values are computed
 184  * according to the calling convention and the argument types.  Then, the
 185  * 32-bit entry point is called with these arguments.
 186  *
 187  * For register functions, the arguments (if present) are converted just
 188  * the same as for normal functions, but in addition the CONTEXT86 pointer
 189  * filled with the current register values is passed to the 32-bit routine.
 190  */
 191 static void BuildCallFrom16Func( FILE *outfile, const char *profile, const char *prefix )
 192 {
 193     int i, pos, argsize = 0;
 194     int short_ret = 0;
 195     int reg_func = 0;
 196     int usecdecl = 0;
 197     int varargs = 0;
 198     const char *args = profile + 7;
 199     const char *ret_type;
 200
 201     /* Parse function type */
 202
 203     if (!strncmp( "c_", profile, 2 )) usecdecl = 1;
 204     else if (!strncmp( "v_", profile, 2 )) varargs = usecdecl = 1;
 205     else if (strncmp( "p_", profile, 2 ))
 206     {
 207         fprintf( stderr, "Invalid function name '%s', ignored\n", profile );
 208         return;
 209     }
 210
 211     if (!strncmp( "word_", profile + 2, 5 )) short_ret = 1;
 212     else if (!strncmp( "regs_", profile + 2, 5 )) reg_func = 1;
 213     else if (strncmp( "long_", profile + 2, 5 ))
 214     {
 215         fprintf( stderr, "Invalid function name '%s', ignored\n", profile );
 216         return;
 217     }
 218
 219     for ( i = 0; args[i]; i++ )
 220         switch ( args[i] )
 221         {
 222         case 'w':  /* word */
 223         case 's':  /* s_word */
 224             argsize += 2;
 225             break;
 226         case 'l':  /* long or segmented pointer */
 227         case 'T':  /* segmented pointer to null-terminated string */
 228         case 'p':  /* linear pointer */
 229         case 't':  /* linear pointer to null-terminated string */
 230             argsize += 4;
 231             break;
 232         }
 233
 234     ret_type = reg_func? "void" : short_ret ? "unsigned short" : "unsigned int";
 235
 236     fprintf( outfile, "typedef %s (%s*proc_%s_t)( ",
 237              ret_type, usecdecl ? "" : "__stdcall ", profile );
 238     args = profile + 7;
 239     for ( i = 0; args[i]; i++ )
 240     {
 241         if ( i ) fprintf( outfile, ", " );
 242         switch (args[i])
 243         {
 244         case 'w':           fprintf( outfile, "unsigned short" ); break;
 245         case 's':           fprintf( outfile, "short" ); break;
 246         case 'l': case 'T': fprintf( outfile, "unsigned int" ); break;
 247         case 'p': case 't': fprintf( outfile, "void *" ); break;
 248         }
 249     }
 250     if (reg_func || varargs)
 251         fprintf( outfile, "%svoid *", i? ", " : "" );
 252     else if ( !i )
 253         fprintf( outfile, "void" );
 254     fprintf( outfile, " );\n" );
 255
 256     fprintf( outfile, "static %s __stdcall __wine_%s_CallFrom16_%s( proc_%s_t proc, unsigned char *args%s )\n",
 257              ret_type, make_c_identifier(prefix), profile, profile,
 258              reg_func? ", void *context" : "" );
 259
 260     fprintf( outfile, "{\n    %sproc(\n", reg_func ? "" : "return " );
 261     args = profile + 7;
 262     pos = !usecdecl? argsize : 0;
 263     for ( i = 0; args[i]; i++ )
 264     {
 265         if ( i ) fprintf( outfile, ",\n" );
 266         fprintf( outfile, "        " );
 267         switch (args[i])
 268         {
 269         case 'w':  /* word */
 270             if ( !usecdecl ) pos -= 2;
 271             fprintf( outfile, "*(unsigned short *)(args+%d)", pos );
 272             if (  usecdecl ) pos += 2;
 273             break;
 274
 275         case 's':  /* s_word */
 276             if ( !usecdecl ) pos -= 2;
 277             fprintf( outfile, "*(short *)(args+%d)", pos );
 278             if (  usecdecl ) pos += 2;
 279             break;
 280
 281         case 'l':  /* long or segmented pointer */
 282         case 'T':  /* segmented pointer to null-terminated string */
 283             if ( !usecdecl ) pos -= 4;
 284             fprintf( outfile, "*(unsigned int *)(args+%d)", pos );
 285             if (  usecdecl ) pos += 4;
 286             break;
 287
 288         case 'p':  /* linear pointer */
 289         case 't':  /* linear pointer to null-terminated string */
 290             if ( !usecdecl ) pos -= 4;
 291             fprintf( outfile, "((char*)wine_ldt_copy.base[*(unsigned short*)(args+%d) >> 3] + *(unsigned short*)(args+%d))",
 292                      pos + 2, pos );
 293             if (  usecdecl ) pos += 4;
 294             break;
 295
 296         default:
 297             fprintf( stderr, "Unknown arg type '%c'\n", args[i] );
 298         }
 299     }
 300     if ( reg_func )
 301         fprintf( outfile, "%s        context", i? ",\n" : "" );
 302     else if (varargs)
 303         fprintf( outfile, "%s        args + %d", i? ",\n" : "", argsize );
 304     fprintf( outfile, " );\n}\n\n" );
 305 }
 306
 307
 308 /*******************************************************************
 309  *         get_function_name
 310  */
 311 static const char *get_function_name( const ORDDEF *odp )
 312 {
 313     static char buffer[80];
 314
 315     sprintf( buffer, "%s_%s_%s",
 316              (odp->type == TYPE_PASCAL) ? "p" :
 317              (odp->type == TYPE_VARARGS) ? "v" : "c",
 318              (odp->flags & FLAG_REGISTER) ? "regs" :
 319              (odp->flags & FLAG_RET16) ? "word" : "long",
 320              odp->u.func.arg_types );
 321     return buffer;
 322 }
 323
 324
 325 /*******************************************************************
 326  *         Spec16TypeCompare
 327  */
 328 static int Spec16TypeCompare( const void *e1, const void *e2 )
 329 {
 330     const ORDDEF *odp1 = *(const ORDDEF * const *)e1;
 331     const ORDDEF *odp2 = *(const ORDDEF * const *)e2;
 332     int retval;
 333     int type1 = odp1->type;
 334     int type2 = odp2->type;
 335
 336     if (type1 == TYPE_STUB) type1 = TYPE_CDECL;
 337     if (type2 == TYPE_STUB) type2 = TYPE_CDECL;
 338
 339     if ((retval = type1 - type2) != 0) return retval;
 340
 341     type1 = odp1->flags & (FLAG_RET16|FLAG_REGISTER);
 342     type2 = odp2->flags & (FLAG_RET16|FLAG_REGISTER);
 343
 344     if ((retval = type1 - type2) != 0) return retval;
 345
 346     return strcmp( odp1->u.func.arg_types, odp2->u.func.arg_types );
 347 }
 348
 349
 350 /*******************************************************************
 351  *         output_stub_funcs
 352  *
 353  * Output the functions for stub entry points
 354 */
 355 static void output_stub_funcs( FILE *outfile, const DLLSPEC *spec )
 356 {
 357     int i;
 358     char *p;
 359
 360     for (i = 0; i <= spec->limit; i++)
 361     {
 362         ORDDEF *odp = spec->ordinals[i];
 363         if (!odp || odp->type != TYPE_STUB) continue;
 364         fprintf( outfile, "#ifdef __GNUC__\n" );
 365         fprintf( outfile, "static void __wine_unimplemented( const char *func ) __attribute__((noreturn));\n" );
 366         fprintf( outfile, "#endif\n" );
 367         fprintf( outfile, "static void __wine_unimplemented( const char *func )\n{\n" );
 368         fprintf( outfile, "  extern void __stdcall RaiseException( unsigned int, unsigned int, unsigned int, const void ** );\n" );
 369         fprintf( outfile, "  const void *args[2];\n" );
 370         fprintf( outfile, "  args[0] = \"%s\";\n", spec->file_name );
 371         fprintf( outfile, "  args[1] = func;\n" );
 372         fprintf( outfile, "  for (;;) RaiseException( 0x%08x, %d, 2, args );\n}\n\n",
 373                  EXCEPTION_WINE_STUB, EH_NONCONTINUABLE );
 374         break;
 375     }
 376     for (i = 0; i <= spec->limit; i++)
 377     {
 378         ORDDEF *odp = spec->ordinals[i];
 379         if (!odp || odp->type != TYPE_STUB) continue;
 380         odp->link_name = xrealloc( odp->link_name, strlen(odp->name) + 13 );
 381         strcpy( odp->link_name, "__wine_stub_" );
 382         strcat( odp->link_name, odp->name );
 383         for (p = odp->link_name; *p; p++) if (!isalnum(*p)) *p = '_';
 384         fprintf( outfile, "static void %s(void) { __wine_unimplemented(\"%s\"); }\n",
 385                  odp->link_name, odp->name );
 386     }
 387 }
 388
 389
 390 /*******************************************************************
 391  *         BuildSpec16File
 392  *
 393  * Build a Win16 assembly file from a spec file.
 394  */
 395 void BuildSpec16File( FILE *outfile, DLLSPEC *spec )
 396 {
 397     ORDDEF **type, **typelist;
 398     int i, nFuncs, nTypes;
 399     unsigned char *resdir_buffer, *resdata_buffer, *et_buffer, *data_buffer;
 400     unsigned char string[256];
 401     unsigned int ne_offset, segtable_offset, impnames_offset;
 402     unsigned int entrypoint_size, callfrom_size;
 403     unsigned int code_size, code_offset;
 404     unsigned int data_size, data_offset;
 405     unsigned int resnames_size, resnames_offset;
 406     unsigned int resdir_size, resdir_offset;
 407     unsigned int resdata_size, resdata_offset, resdata_align;
 408     unsigned int et_size, et_offset;
 409
 410     char constructor[100], destructor[100];
 411     unsigned short code_selector = get_cs();
 412
 413     /* File header */
 414
 415     output_file_header( outfile );
 416     fprintf( outfile, "extern unsigned short __wine_call_from_16_word();\n" );
 417     fprintf( outfile, "extern unsigned int __wine_call_from_16_long();\n" );
 418     fprintf( outfile, "extern void __wine_call_from_16_regs();\n" );
 419     fprintf( outfile, "extern void __wine_call_from_16_thunk();\n" );
 420
 421     data_buffer = xmalloc( 0x10000 );
 422     memset( data_buffer, 0, 16 );
 423     data_size = 16;
 424
 425     if (!spec->dll_name)  /* set default name from file name */
 426     {
 427         char *p;
 428         spec->dll_name = xstrdup( spec->file_name );
 429         if ((p = strrchr( spec->dll_name, '.' ))) *p = 0;
 430     }
 431
 432     output_stub_funcs( outfile, spec );
 433
 434     /* Build sorted list of all argument types, without duplicates */
 435
 436     typelist = (ORDDEF **)calloc( spec->limit+1, sizeof(ORDDEF *) );
 437
 438     for (i = nFuncs = 0; i <= spec->limit; i++)
 439     {
 440         ORDDEF *odp = spec->ordinals[i];
 441         if (!odp) continue;
 442         switch (odp->type)
 443         {
 444           case TYPE_CDECL:
 445           case TYPE_PASCAL:
 446           case TYPE_VARARGS:
 447           case TYPE_STUB:
 448             typelist[nFuncs++] = odp;
 449
 450           default:
 451             break;
 452         }
 453     }
 454
 455     qsort( typelist, nFuncs, sizeof(ORDDEF *), Spec16TypeCompare );
 456
 457     i = nTypes = 0;
 458     while ( i < nFuncs )
 459     {
 460         typelist[nTypes++] = typelist[i++];
 461         while ( i < nFuncs && Spec16TypeCompare( typelist + i, typelist + nTypes-1 ) == 0 )
 462             i++;
 463     }
 464
 465     /* Output CallFrom16 routines needed by this .spec file */
 466     for ( i = 0; i < nTypes; i++ )
 467     {
 468         char profile[101];
 469
 470         strcpy( profile, get_function_name( typelist[i] ));
 471         BuildCallFrom16Func( outfile, profile, spec->file_name );
 472     }
 473
 474     /* compute code and data sizes, set offsets, and output prototypes */
 475
 476     entrypoint_size = 2 + 5 + 4;    /* pushw bp + pushl target + call */
 477     callfrom_size = 5 + 7 + 4 + 8;  /* pushl relay + lcall cs:glue + lret n + args */
 478     code_size = nTypes * callfrom_size;
 479
 480     for (i = 0; i <= spec->limit; i++)
 481     {
 482         ORDDEF *odp = spec->ordinals[i];
 483         if (!odp) continue;
 484         switch (odp->type)
 485         {
 486         case TYPE_ABS:
 487             odp->offset = LOWORD(odp->u.abs.value);
 488             break;
 489         case TYPE_VARIABLE:
 490             odp->offset = data_size;
 491             memcpy( data_buffer + data_size, odp->u.var.values, odp->u.var.n_values * sizeof(int) );
 492             data_size += odp->u.var.n_values * sizeof(int);
 493             break;
 494         case TYPE_CDECL:
 495         case TYPE_PASCAL:
 496         case TYPE_VARARGS:
 497             fprintf( outfile, "extern void %s();\n", odp->link_name );
 498             /* fall through */
 499         case TYPE_STUB:
 500             odp->offset = code_size;
 501             code_size += entrypoint_size;
 502             break;
 503         default:
 504             assert(0);
 505             break;
 506         }
 507     }
 508     data_buffer = xrealloc( data_buffer, data_size );  /* free unneeded data */
 509
 510     /* Output the module structure */
 511
 512     /* DOS header */
 513
 514     fprintf( outfile, "\n#include \"pshpack1.h\"\n" );
 515     fprintf( outfile, "static const struct module_data\n{\n" );
 516     fprintf( outfile, "  struct\n  {\n" );
 517     fprintf( outfile, "    unsigned short e_magic;\n" );
 518     fprintf( outfile, "    unsigned short e_cblp;\n" );
 519     fprintf( outfile, "    unsigned short e_cp;\n" );
 520     fprintf( outfile, "    unsigned short e_crlc;\n" );
 521     fprintf( outfile, "    unsigned short e_cparhdr;\n" );
 522     fprintf( outfile, "    unsigned short e_minalloc;\n" );
 523     fprintf( outfile, "    unsigned short e_maxalloc;\n" );
 524     fprintf( outfile, "    unsigned short e_ss;\n" );
 525     fprintf( outfile, "    unsigned short e_sp;\n" );
 526     fprintf( outfile, "    unsigned short e_csum;\n" );
 527     fprintf( outfile, "    unsigned short e_ip;\n" );
 528     fprintf( outfile, "    unsigned short e_cs;\n" );
 529     fprintf( outfile, "    unsigned short e_lfarlc;\n" );
 530     fprintf( outfile, "    unsigned short e_ovno;\n" );
 531     fprintf( outfile, "    unsigned short e_res[4];\n" );
 532     fprintf( outfile, "    unsigned short e_oemid;\n" );
 533     fprintf( outfile, "    unsigned short e_oeminfo;\n" );
 534     fprintf( outfile, "    unsigned short e_res2[10];\n" );
 535     fprintf( outfile, "    unsigned int   e_lfanew;\n" );
 536     fprintf( outfile, "  } dos_header;\n" );
 537
 538     /* NE header */
 539
 540     ne_offset = 64;
 541     fprintf( outfile, "  struct\n  {\n" );
 542     fprintf( outfile, "    unsigned short  ne_magic;\n" );
 543     fprintf( outfile, "    unsigned char   ne_ver;\n" );
 544     fprintf( outfile, "    unsigned char   ne_rev;\n" );
 545     fprintf( outfile, "    unsigned short  ne_enttab;\n" );
 546     fprintf( outfile, "    unsigned short  ne_cbenttab;\n" );
 547     fprintf( outfile, "    int             ne_crc;\n" );
 548     fprintf( outfile, "    unsigned short  ne_flags;\n" );
 549     fprintf( outfile, "    unsigned short  ne_autodata;\n" );
 550     fprintf( outfile, "    unsigned short  ne_heap;\n" );
 551     fprintf( outfile, "    unsigned short  ne_stack;\n" );
 552     fprintf( outfile, "    unsigned int    ne_csip;\n" );
 553     fprintf( outfile, "    unsigned int    ne_sssp;\n" );
 554     fprintf( outfile, "    unsigned short  ne_cseg;\n" );
 555     fprintf( outfile, "    unsigned short  ne_cmod;\n" );
 556     fprintf( outfile, "    unsigned short  ne_cbnrestab;\n" );
 557     fprintf( outfile, "    unsigned short  ne_segtab;\n" );
 558     fprintf( outfile, "    unsigned short  ne_rsrctab;\n" );
 559     fprintf( outfile, "    unsigned short  ne_restab;\n" );
 560     fprintf( outfile, "    unsigned short  ne_modtab;\n" );
 561     fprintf( outfile, "    unsigned short  ne_imptab;\n" );
 562     fprintf( outfile, "    unsigned int    ne_nrestab;\n" );
 563     fprintf( outfile, "    unsigned short  ne_cmovent;\n" );
 564     fprintf( outfile, "    unsigned short  ne_align;\n" );
 565     fprintf( outfile, "    unsigned short  ne_cres;\n" );
 566     fprintf( outfile, "    unsigned char   ne_exetyp;\n" );
 567     fprintf( outfile, "    unsigned char   ne_flagsothers;\n" );
 568     fprintf( outfile, "    unsigned short  ne_pretthunks;\n" );
 569     fprintf( outfile, "    unsigned short  ne_psegrefbytes;\n" );
 570     fprintf( outfile, "    unsigned short  ne_swaparea;\n" );
 571     fprintf( outfile, "    unsigned short  ne_expver;\n" );
 572     fprintf( outfile, "  } os2_header;\n" );
 573
 574     /* segment table */
 575
 576     segtable_offset = 64;
 577     fprintf( outfile, "  struct\n  {\n" );
 578     fprintf( outfile, "    unsigned short filepos;\n" );
 579     fprintf( outfile, "    unsigned short size;\n" );
 580     fprintf( outfile, "    unsigned short flags;\n" );
 581     fprintf( outfile, "    unsigned short minsize;\n" );
 582     fprintf( outfile, "  } segtable[2];\n" );
 583
 584     /* resource directory */
 585
 586     resdir_offset = segtable_offset + 2 * 8;
 587     resdir_size = get_res16_directory_size( spec );
 588     fprintf( outfile, "  unsigned char resdir[%d];\n", resdir_size );
 589
 590     /* resident names table */
 591
 592     resnames_offset = resdir_offset + resdir_size;
 593     fprintf( outfile, "  struct\n  {\n" );
 594     fprintf( outfile, "    struct { unsigned char len; char name[%d]; unsigned short ord; } name_0;\n",
 595              strlen( spec->dll_name ) );
 596     resnames_size = 3 + strlen( spec->dll_name );
 597     for (i = 1; i <= spec->limit; i++)
 598     {
 599         ORDDEF *odp = spec->ordinals[i];
 600         if (!odp || !odp->name[0]) continue;
 601         fprintf( outfile, "    struct { unsigned char len; char name[%d]; unsigned short ord; } name_%d;\n",
 602                  strlen(odp->name), i );
 603         resnames_size += 3 + strlen( odp->name );
 604     }
 605     fprintf( outfile, "    unsigned char name_last[%d];\n", 2 - (resnames_size & 1) );
 606     resnames_size = (resnames_size + 2) & ~1;
 607     fprintf( outfile, "  } resnames;\n" );
 608
 609     /* imported names table */
 610
 611     impnames_offset = resnames_offset + resnames_size;
 612     fprintf( outfile, "  unsigned char impnames[2];\n" );
 613
 614     /* entry table */
 615
 616     et_offset = impnames_offset + 2;
 617     et_size = output_entry_table( &et_buffer, spec );
 618     fprintf( outfile, "  unsigned char entry_table[%d];\n", et_size );
 619
 620     /* code segment */
 621
 622     code_offset = et_offset + et_size;
 623     fprintf( outfile, "  struct {\n" );
 624     fprintf( outfile, "    unsigned char pushl;\n" );      /* pushl $relay */
 625     fprintf( outfile, "    void *relay;\n" );
 626     fprintf( outfile, "    unsigned char lcall;\n" );      /* lcall __FLATCS__:glue */
 627     fprintf( outfile, "    void *glue;\n" );
 628     fprintf( outfile, "    unsigned short flatcs;\n" );
 629     fprintf( outfile, "    unsigned short lret;\n" );      /* lret $args */
 630     fprintf( outfile, "    unsigned short args;\n" );
 631     fprintf( outfile, "    unsigned int arg_types[2];\n" );
 632     fprintf( outfile, "  } call[%d];\n", nTypes );
 633     fprintf( outfile, "  struct {\n" );
 634     fprintf( outfile, "    unsigned short pushw_bp;\n" );  /* pushw %bp */
 635     fprintf( outfile, "    unsigned char pushl;\n" );      /* pushl $target */
 636     fprintf( outfile, "    void (*target)();\n" );
 637     fprintf( outfile, "    unsigned short call;\n" );      /* call CALLFROM16 */
 638     fprintf( outfile, "    short callfrom16;\n" );
 639     fprintf( outfile, "  } entry[%d];\n", nFuncs );
 640
 641     /* data segment */
 642
 643     data_offset = code_offset + code_size;
 644     fprintf( outfile, "  unsigned char data_segment[%d];\n", data_size );
 645     if (data_offset + data_size >= 0x10000)
 646         fatal_error( "Not supported yet: 16-bit module data larger than 64K\n" );
 647
 648     /* resource data */
 649
 650     resdata_offset = ne_offset + data_offset + data_size;
 651     for (resdata_align = 0; resdata_align < 16; resdata_align++)
 652     {
 653         unsigned int size = get_res16_data_size( spec, resdata_offset, resdata_align );
 654         if ((resdata_offset + size) >> resdata_align <= 0xffff) break;
 655     }
 656     output_res16_directory( &resdir_buffer, spec, resdata_offset, resdata_align );
 657     resdata_size = output_res16_data( &resdata_buffer, spec, resdata_offset, resdata_align );
 658     if (resdata_size) fprintf( outfile, "  unsigned char resources[%d];\n", resdata_size );
 659
 660     /* Output the module data */
 661
 662     /* DOS header */
 663
 664     fprintf( outfile, "} module =\n{\n  {\n" );
 665     fprintf( outfile, "    0x%04x,\n", IMAGE_DOS_SIGNATURE );  /* e_magic */
 666     fprintf( outfile, "    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\n" );
 667     fprintf( outfile, "    { 0, 0, 0, 0, }, 0, 0,\n" );
 668     fprintf( outfile, "    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },\n" );
 669     fprintf( outfile, "    sizeof(module.dos_header)\n" );  /* e_lfanew */
 670
 671     /* NE header */
 672
 673     fprintf( outfile, "  },\n  {\n" );
 674     fprintf( outfile, "    0x%04x,\n", IMAGE_OS2_SIGNATURE ); /* ne_magic */
 675     fprintf( outfile, "    0, 0,\n" );
 676     fprintf( outfile, "    %d,\n", et_offset );               /* ne_enttab */
 677     fprintf( outfile, "    sizeof(module.entry_table),\n" );  /* ne_cbenttab */
 678     fprintf( outfile, "    0,\n" );                           /* ne_crc */
 679     fprintf( outfile, "    0x%04x,\n",                        /* ne_flags */
 680              NE_FFLAGS_SINGLEDATA | NE_FFLAGS_LIBMODULE );
 681     fprintf( outfile, "    2,\n" );                           /* ne_autodata */
 682     fprintf( outfile, "    %d,\n", spec->heap_size );         /* ne_heap */
 683     fprintf( outfile, "    0, 0, 0,\n" );
 684     fprintf( outfile, "    2,\n" );                           /* ne_cseg */
 685     fprintf( outfile, "    0,\n" );                           /* ne_cmod */
 686     fprintf( outfile, "    0,\n" );                           /* ne_cbnrestab */
 687     fprintf( outfile, "    %d,\n", segtable_offset );         /* ne_segtab */
 688     fprintf( outfile, "    %d,\n", resdir_offset );           /* ne_rsrctab */
 689     fprintf( outfile, "    %d,\n", resnames_offset );         /* ne_restab */
 690     fprintf( outfile, "    %d,\n", impnames_offset );         /* ne_modtab */
 691     fprintf( outfile, "    %d,\n", impnames_offset );         /* ne_imptab */
 692     fprintf( outfile, "    0,\n" );                           /* ne_nrestab */
 693     fprintf( outfile, "    0,\n" );                           /* ne_cmovent */
 694     fprintf( outfile, "    0,\n" );                           /* ne_align */
 695     fprintf( outfile, "    0,\n" );                           /* ne_cres */
 696     fprintf( outfile, "    0x%04x,\n", NE_OSFLAGS_WINDOWS );  /* ne_exetyp */
 697     fprintf( outfile, "    0x%04x,\n", NE_AFLAGS_FASTLOAD );  /* ne_flagsothers */
 698     fprintf( outfile, "    0,\n" );                           /* ne_pretthunks */
 699     fprintf( outfile, "    0,\n" );                           /* ne_psegrefbytes */
 700     fprintf( outfile, "    0,\n" );                           /* ne_swaparea */
 701     fprintf( outfile, "    0\n" );                            /* ne_expver */
 702     fprintf( outfile, "  },\n" );
 703
 704     /* segment table */
 705
 706     fprintf( outfile, "  {\n" );
 707     fprintf( outfile, "    { %d, %d, 0x%04x, %d },\n",
 708              ne_offset + code_offset, code_size, NE_SEGFLAGS_32BIT, code_size );
 709     fprintf( outfile, "    { %d, %d, 0x%04x, %d },\n",
 710              ne_offset + data_offset, data_size, NE_SEGFLAGS_DATA, data_size );
 711     fprintf( outfile, "  },\n" );
 712
 713     /* resource directory */
 714
 715     output_bytes( outfile, resdir_buffer, resdir_size );
 716     free( resdir_buffer );
 717
 718     /* resident names table */
 719
 720     fprintf( outfile, "  {\n" );
 721     strcpy( string, spec->dll_name );
 722     fprintf( outfile, "    { %d, \"%s\", 0 },\n", strlen(string), strupper(string) );
 723     for (i = 1; i <= spec->limit; i++)
 724     {
 725         ORDDEF *odp = spec->ordinals[i];
 726         if (!odp || !odp->name[0]) continue;
 727         strcpy( string, odp->name );
 728         fprintf( outfile, "    { %d, \"%s\", %d },\n", strlen(string), strupper(string), i );
 729     }
 730     fprintf( outfile, "    { 0 }\n  },\n" );
 731
 732     /* imported names table */
 733
 734     fprintf( outfile, "  { 0, 0 },\n" );
 735
 736     /* entry table */
 737
 738     output_bytes( outfile, et_buffer, et_size );
 739     free( et_buffer );
 740
 741     /* code segment */
 742
 743     fprintf( outfile, "  {\n" );
 744     for ( i = 0; i < nTypes; i++ )
 745     {
 746         char profile[101], *arg;
 747         unsigned int arg_types[2];
 748         int j, argsize = 0;
 749
 750         strcpy( profile, get_function_name( typelist[i] ));
 751         if ( typelist[i]->type == TYPE_PASCAL )
 752             for ( arg = typelist[i]->u.func.arg_types; *arg; arg++ )
 753                 switch ( *arg )
 754                 {
 755                 case 'w':  /* word */
 756                 case 's':  /* s_word */
 757                     argsize += 2;
 758                     break;
 759                 case 'l':  /* long or segmented pointer */
 760                 case 'T':  /* segmented pointer to null-terminated string */
 761                 case 'p':  /* linear pointer */
 762                 case 't':  /* linear pointer to null-terminated string */
 763                     argsize += 4;
 764                     break;
 765                 }
 766
 767         /* build the arg types bit fields */
 768         arg_types[0] = arg_types[1] = 0;
 769         for (j = 0; typelist[i]->u.func.arg_types[j]; j++)
 770         {
 771             int type = 0;
 772             switch(typelist[i]->u.func.arg_types[j])
 773             {
 774             case 'w': type = ARG_WORD; break;
 775             case 's': type = ARG_SWORD; break;
 776             case 'l': type = ARG_LONG; break;
 777             case 'p': type = ARG_PTR; break;
 778             case 't': type = ARG_STR; break;
 779             case 'T': type = ARG_SEGSTR; break;
 780             }
 781             arg_types[j / 10] |= type << (3 * (j % 10));
 782         }
 783         if (typelist[i]->flags & FLAG_REGISTER) arg_types[0] |= ARG_REGISTER;
 784         if (typelist[i]->flags & FLAG_RET16) arg_types[0] |= ARG_RET16;
 785
 786         fprintf( outfile, "    { 0x68, __wine_%s_CallFrom16_%s, 0x9a, __wine_call_from_16_%s,\n",
 787                  make_c_identifier(spec->file_name), profile,
 788                  (typelist[i]->flags & FLAG_REGISTER) ? "regs":
 789                  (typelist[i]->flags & FLAG_RET16) ? "word" : "long" );
 790         if (argsize)
 791             fprintf( outfile, "      0x%04x, 0xca66, %d, { 0x%08x, 0x%08x } },\n",
 792                      code_selector, argsize, arg_types[0], arg_types[1] );
 793         else
 794             fprintf( outfile, "      0x%04x, 0xcb66, 0x9090, { 0x%08x, 0x%08x } },\n",
 795                      code_selector, arg_types[0], arg_types[1] );
 796     }
 797     fprintf( outfile, "  },\n  {\n" );
 798
 799     for (i = 0; i <= spec->limit; i++)
 800     {
 801         ORDDEF *odp = spec->ordinals[i];
 802         if (!odp) continue;
 803         switch (odp->type)
 804         {
 805           case TYPE_CDECL:
 806           case TYPE_PASCAL:
 807           case TYPE_VARARGS:
 808           case TYPE_STUB:
 809             type = bsearch( &odp, typelist, nTypes, sizeof(ORDDEF *), Spec16TypeCompare );
 810             assert( type );
 811
 812             fprintf( outfile, "    /* %s.%d */ ", spec->dll_name, i );
 813             fprintf( outfile,
 814                      "{ 0x5566, 0x68, %s, 0xe866, %d  /* %s */ },\n",
 815                      odp->link_name,
 816                      (type - typelist) * callfrom_size - (odp->offset + entrypoint_size),
 817                      get_function_name( odp ) );
 818             break;
 819         default:
 820             break;
 821         }
 822     }
 823     fprintf( outfile, "  },\n" );
 824
 825
 826     /* data_segment */
 827
 828     output_bytes( outfile, data_buffer, data_size );
 829     free( data_buffer );
 830
 831     /* resource data */
 832
 833     if (resdata_size)
 834     {
 835         output_bytes( outfile, resdata_buffer, resdata_size );
 836         free( resdata_buffer );
 837     }
 838
 839     fprintf( outfile, "};\n" );
 840     fprintf( outfile, "#include \"poppack.h\"\n\n" );
 841
 842     /* Output the DLL constructor */
 843
 844     sprintf( constructor, "__wine_spec_%s_init", make_c_identifier(spec->file_name) );
 845     sprintf( destructor, "__wine_spec_%s_fini", make_c_identifier(spec->file_name) );
 846
 847     fprintf( outfile,
 848              "void %s(void)\n"
 849              "{\n"
 850              "    extern void __wine_dll_register_16( const struct module_data *, const char * );\n"
 851              "    __wine_dll_register_16( &module, \"%s\" );\n"
 852              "}\n", constructor, spec->file_name );
 853     fprintf( outfile,
 854              "void %s(void)\n"
 855              "{\n"
 856              "    extern void __wine_dll_unregister_16( const struct module_data * );\n"
 857              "    __wine_dll_unregister_16( &module );\n"
 858              "}\n", destructor );
 859
 860     fprintf( outfile, "#ifndef __GNUC__\n" );
 861     fprintf( outfile, "static void __asm__dummy_dll_init(void) {\n" );
 862     fprintf( outfile, "#endif\n" );
 863
 864     output_dll_init( outfile, constructor, destructor );
 865
 866     fprintf( outfile, "#ifndef __GNUC__\n" );
 867     fprintf( outfile, "}\n" );
 868     fprintf( outfile, "#endif\n" );
 869 }