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 #include "wine/port.h"
  27
  28 #include <assert.h>
  29 #include <ctype.h>
  30
  31 #include "wine/exception.h"
  32 #include "stackframe.h"
  33 #include "builtin16.h"
  34 #include "module.h"
  35
  36 #include "build.h"
  37
  38
  39 /*******************************************************************
  40  *         get_cs
  41  */
  42 #ifdef __i386__
  43 static inline unsigned short get_cs(void)
  44 {
  45     unsigned short res;
  46 #ifdef __GNUC__
  47     __asm__("movw %%cs,%w0" : "=r"(res));
  48 #elif defined(_MSC_VER)
  49     __asm { mov res, cs }
  50 #else
  51     res = 0;
  52 #endif
  53     return res;
  54 }
  55 #endif /* __i386__ */
  56
  57
  58 /*******************************************************************
  59  *         output_file_header
  60  *
  61  * Output a file header with the common declarations we need.
  62  */
  63 static void output_file_header( FILE *outfile )
  64 {
  65     output_standard_file_header( outfile );
  66     fprintf( outfile, "extern struct\n{\n" );
  67     fprintf( outfile, "  void *base[8192];\n" );
  68     fprintf( outfile, "  unsigned long limit[8192];\n" );
  69     fprintf( outfile, "  unsigned char flags[8192];\n" );
  70     fprintf( outfile, "} wine_ldt_copy;\n\n" );
  71 #ifdef __i386__
  72     fprintf( outfile, "#define __stdcall __attribute__((__stdcall__))\n\n" );
  73 #else
  74     fprintf( outfile, "#define __stdcall\n\n" );
  75 #endif
  76 }
  77
  78
  79 /*******************************************************************
  80  *         StoreVariableCode
  81  *
  82  * Store a list of ints into a byte array.
  83  */
  84 static int StoreVariableCode( unsigned char *buffer, int size, ORDDEF *odp )
  85 {
  86     int i;
  87
  88     switch(size)
  89     {
  90     case 1:
  91         for (i = 0; i < odp->u.var.n_values; i++)
  92             buffer[i] = odp->u.var.values[i];
  93         break;
  94     case 2:
  95         for (i = 0; i < odp->u.var.n_values; i++)
  96             ((unsigned short *)buffer)[i] = odp->u.var.values[i];
  97         break;
  98     case 4:
  99         for (i = 0; i < odp->u.var.n_values; i++)
 100             ((unsigned int *)buffer)[i] = odp->u.var.values[i];
 101         break;
 102     }
 103     return odp->u.var.n_values * size;
 104 }
 105
 106
 107 /*******************************************************************
 108  *         BuildModule16
 109  *
 110  * Build the in-memory representation of a 16-bit NE module, and dump it
 111  * as a byte stream into the assembly code.
 112  */
 113 static int BuildModule16( FILE *outfile, int max_code_offset,
 114                           int max_data_offset, DLLSPEC *spec )
 115 {
 116     int i;
 117     char *buffer;
 118     NE_MODULE *pModule;
 119     SEGTABLEENTRY *pSegment;
 120     OFSTRUCT *pFileInfo;
 121     BYTE *pstr;
 122     ET_BUNDLE *bundle = 0;
 123     ET_ENTRY entry;
 124
 125     /*   Module layout:
 126      * NE_MODULE       Module
 127      * OFSTRUCT        File information
 128      * SEGTABLEENTRY   Segment 1 (code)
 129      * SEGTABLEENTRY   Segment 2 (data)
 130      * WORD[2]         Resource table (empty)
 131      * BYTE[2]         Imported names (empty)
 132      * BYTE[n]         Resident names table
 133      * BYTE[n]         Entry table
 134      */
 135
 136     buffer = xmalloc( 0x10000 );
 137     memset( buffer, 0, 0x10000 );
 138
 139     pModule = (NE_MODULE *)buffer;
 140     pModule->magic = IMAGE_OS2_SIGNATURE;
 141     pModule->count = 1;
 142     pModule->next = 0;
 143     pModule->flags = NE_FFLAGS_SINGLEDATA | NE_FFLAGS_BUILTIN | NE_FFLAGS_LIBMODULE;
 144     pModule->dgroup = 2;
 145     pModule->heap_size = spec->heap_size;
 146     pModule->stack_size = 0;
 147     pModule->ip = 0;
 148     pModule->cs = 0;
 149     pModule->sp = 0;
 150     pModule->ss = 0;
 151     pModule->seg_count = 2;
 152     pModule->modref_count = 0;
 153     pModule->nrname_size = 0;
 154     pModule->modref_table = 0;
 155     pModule->nrname_fpos = 0;
 156     pModule->moveable_entries = 0;
 157     pModule->alignment = 0;
 158     pModule->truetype = 0;
 159     pModule->os_flags = NE_OSFLAGS_WINDOWS;
 160     pModule->misc_flags = 0;
 161     pModule->dlls_to_init  = 0;
 162     pModule->nrname_handle = 0;
 163     pModule->min_swap_area = 0;
 164     pModule->expected_version = 0;
 165     pModule->module32 = 0;
 166     pModule->self = 0;
 167     pModule->self_loading_sel = 0;
 168
 169       /* File information */
 170
 171     pFileInfo = (OFSTRUCT *)(pModule + 1);
 172     pModule->fileinfo = (int)pFileInfo - (int)pModule;
 173     memset( pFileInfo, 0, sizeof(*pFileInfo) - sizeof(pFileInfo->szPathName) );
 174     pFileInfo->cBytes = sizeof(*pFileInfo) - sizeof(pFileInfo->szPathName)
 175                         + strlen(spec->file_name);
 176     strcpy( pFileInfo->szPathName, spec->file_name );
 177     pstr = (char *)pFileInfo + pFileInfo->cBytes + 1;
 178
 179       /* Segment table */
 180
 181     pstr = (char *)(((long)pstr + 3) & ~3);
 182     pSegment = (SEGTABLEENTRY *)pstr;
 183     pModule->seg_table = (int)pSegment - (int)pModule;
 184     pSegment->filepos = 0;
 185     pSegment->size = max_code_offset;
 186     pSegment->flags = 0;
 187     pSegment->minsize = max_code_offset;
 188     pSegment->hSeg = 0;
 189     pSegment++;
 190
 191     pModule->dgroup_entry = (int)pSegment - (int)pModule;
 192     pSegment->filepos = 0;
 193     pSegment->size = max_data_offset;
 194     pSegment->flags = NE_SEGFLAGS_DATA;
 195     pSegment->minsize = max_data_offset;
 196     pSegment->hSeg = 0;
 197     pSegment++;
 198
 199       /* Resource table */
 200
 201     pstr = (char *)pSegment;
 202     pstr = (char *)(((long)pstr + 3) & ~3);
 203     pModule->res_table = (int)pstr - (int)pModule;
 204     pstr += output_res16_directory( pstr, spec );
 205
 206       /* Imported names table */
 207
 208     pstr = (char *)(((long)pstr + 3) & ~3);
 209     pModule->import_table = (int)pstr - (int)pModule;
 210     *pstr++ = 0;
 211     *pstr++ = 0;
 212
 213       /* Resident names table */
 214
 215     pstr = (char *)(((long)pstr + 3) & ~3);
 216     pModule->name_table = (int)pstr - (int)pModule;
 217     /* First entry is module name */
 218     *pstr = strlen( spec->dll_name );
 219     strcpy( pstr + 1, spec->dll_name );
 220     strupper( pstr + 1 );
 221     pstr += *pstr + 1;
 222     *pstr++ = 0;
 223     *pstr++ = 0;
 224     /* Store all ordinals */
 225     for (i = 1; i <= spec->limit; i++)
 226     {
 227         ORDDEF *odp = spec->ordinals[i];
 228         WORD ord = i;
 229         if (!odp || !odp->name[0]) continue;
 230         *pstr = strlen( odp->name );
 231         strcpy( pstr + 1, odp->name );
 232         strupper( pstr + 1 );
 233         pstr += *pstr + 1;
 234         memcpy( pstr, &ord, sizeof(WORD) );
 235         pstr += sizeof(WORD);
 236     }
 237     *pstr++ = 0;
 238
 239       /* Entry table */
 240
 241     pstr = (char *)(((long)pstr + 3) & ~3);
 242     pModule->entry_table = (int)pstr - (int)pModule;
 243     for (i = 1; i <= spec->limit; i++)
 244     {
 245         int selector = 0;
 246         ORDDEF *odp = spec->ordinals[i];
 247         if (!odp) continue;
 248
 249         switch (odp->type)
 250         {
 251         case TYPE_CDECL:
 252         case TYPE_PASCAL:
 253         case TYPE_VARARGS:
 254         case TYPE_STUB:
 255             selector = 1;  /* Code selector */
 256             break;
 257
 258         case TYPE_VARIABLE:
 259             selector = 2;  /* Data selector */
 260             break;
 261
 262         case TYPE_ABS:
 263             selector = 0xfe;  /* Constant selector */
 264             break;
 265
 266         default:
 267             selector = 0;  /* Invalid selector */
 268             break;
 269         }
 270
 271         if ( !selector )
 272            continue;
 273
 274         if ( bundle && bundle->last+1 == i )
 275             bundle->last++;
 276         else
 277         {
 278             pstr = (char *)(((long)pstr + 1) & ~1);
 279             if ( bundle )
 280                 bundle->next = (char *)pstr - (char *)pModule;
 281
 282             bundle = (ET_BUNDLE *)pstr;
 283             bundle->first = i-1;
 284             bundle->last = i;
 285             bundle->next = 0;
 286             pstr += sizeof(ET_BUNDLE);
 287         }
 288
 289         /* FIXME: is this really correct ?? */
 290         entry.type = 0xff;  /* movable */
 291         entry.flags = 3; /* exported & public data */
 292         entry.segnum = selector;
 293         entry.offs = odp->offset;
 294         memcpy( pstr, &entry, sizeof(ET_ENTRY) );
 295         pstr += sizeof(ET_ENTRY);
 296     }
 297     *pstr++ = 0;
 298
 299       /* Dump the module content */
 300
 301     pstr = (char *)(((long)pstr + 3) & ~3);
 302     dump_bytes( outfile, (char *)pModule, (int)pstr - (int)pModule, "Module", 0 );
 303     return (int)pstr - (int)pModule;
 304 }
 305
 306
 307 #ifdef __i386__
 308 /*******************************************************************
 309  *         BuildCallFrom16Func
 310  *
 311  * Build a 16-bit-to-Wine callback glue function.
 312  *
 313  * The generated routines are intended to be used as argument conversion
 314  * routines to be called by the CallFrom16... core. Thus, the prototypes of
 315  * the generated routines are (see also CallFrom16):
 316  *
 317  *  extern WORD WINAPI PREFIX_CallFrom16_C_word_xxx( FARPROC func, LPBYTE args );
 318  *  extern LONG WINAPI PREFIX_CallFrom16_C_long_xxx( FARPROC func, LPBYTE args );
 319  *  extern void WINAPI PREFIX_CallFrom16_C_regs_xxx( FARPROC func, LPBYTE args,
 320  *                                                   CONTEXT86 *context );
 321  *
 322  * where 'C' is the calling convention ('p' for pascal or 'c' for cdecl),
 323  * and each 'x' is an argument  ('w'=word, 's'=signed word, 'l'=long,
 324  * 'p'=linear pointer, 't'=linear pointer to null-terminated string,
 325  * 'T'=segmented pointer to null-terminated string).
 326  *
 327  * The generated routines fetch the arguments from the 16-bit stack (pointed
 328  * to by 'args'); the offsets of the single argument values are computed
 329  * according to the calling convention and the argument types.  Then, the
 330  * 32-bit entry point is called with these arguments.
 331  *
 332  * For register functions, the arguments (if present) are converted just
 333  * the same as for normal functions, but in addition the CONTEXT86 pointer
 334  * filled with the current register values is passed to the 32-bit routine.
 335  */
 336 static void BuildCallFrom16Func( FILE *outfile, const char *profile, const char *prefix )
 337 {
 338     int i, pos, argsize = 0;
 339     int short_ret = 0;
 340     int reg_func = 0;
 341     int usecdecl = 0;
 342     int varargs = 0;
 343     const char *args = profile + 7;
 344     const char *ret_type;
 345
 346     /* Parse function type */
 347
 348     if (!strncmp( "c_", profile, 2 )) usecdecl = 1;
 349     else if (!strncmp( "v_", profile, 2 )) varargs = usecdecl = 1;
 350     else if (strncmp( "p_", profile, 2 ))
 351     {
 352         fprintf( stderr, "Invalid function name '%s', ignored\n", profile );
 353         return;
 354     }
 355
 356     if (!strncmp( "word_", profile + 2, 5 )) short_ret = 1;
 357     else if (!strncmp( "regs_", profile + 2, 5 )) reg_func = 1;
 358     else if (strncmp( "long_", profile + 2, 5 ))
 359     {
 360         fprintf( stderr, "Invalid function name '%s', ignored\n", profile );
 361         return;
 362     }
 363
 364     for ( i = 0; args[i]; i++ )
 365         switch ( args[i] )
 366         {
 367         case 'w':  /* word */
 368         case 's':  /* s_word */
 369             argsize += 2;
 370             break;
 371         case 'l':  /* long or segmented pointer */
 372         case 'T':  /* segmented pointer to null-terminated string */
 373         case 'p':  /* linear pointer */
 374         case 't':  /* linear pointer to null-terminated string */
 375             argsize += 4;
 376             break;
 377         }
 378
 379     ret_type = reg_func? "void" : short_ret ? "unsigned short" : "unsigned int";
 380
 381     fprintf( outfile, "typedef %s (%s*proc_%s_t)( ",
 382              ret_type, usecdecl ? "" : "__stdcall ", profile );
 383     args = profile + 7;
 384     for ( i = 0; args[i]; i++ )
 385     {
 386         if ( i ) fprintf( outfile, ", " );
 387         switch (args[i])
 388         {
 389         case 'w':           fprintf( outfile, "unsigned short" ); break;
 390         case 's':           fprintf( outfile, "short" ); break;
 391         case 'l': case 'T': fprintf( outfile, "unsigned int" ); break;
 392         case 'p': case 't': fprintf( outfile, "void *" ); break;
 393         }
 394     }
 395     if (reg_func || varargs)
 396         fprintf( outfile, "%svoid *", i? ", " : "" );
 397     else if ( !i )
 398         fprintf( outfile, "void" );
 399     fprintf( outfile, " );\n" );
 400
 401     fprintf( outfile, "static %s __stdcall __wine_%s_CallFrom16_%s( proc_%s_t proc, unsigned char *args%s )\n",
 402              ret_type, make_c_identifier(prefix), profile, profile,
 403              reg_func? ", void *context" : "" );
 404
 405     fprintf( outfile, "{\n    %sproc(\n", reg_func ? "" : "return " );
 406     args = profile + 7;
 407     pos = !usecdecl? argsize : 0;
 408     for ( i = 0; args[i]; i++ )
 409     {
 410         if ( i ) fprintf( outfile, ",\n" );
 411         fprintf( outfile, "        " );
 412         switch (args[i])
 413         {
 414         case 'w':  /* word */
 415             if ( !usecdecl ) pos -= 2;
 416             fprintf( outfile, "*(unsigned short *)(args+%d)", pos );
 417             if (  usecdecl ) pos += 2;
 418             break;
 419
 420         case 's':  /* s_word */
 421             if ( !usecdecl ) pos -= 2;
 422             fprintf( outfile, "*(short *)(args+%d)", pos );
 423             if (  usecdecl ) pos += 2;
 424             break;
 425
 426         case 'l':  /* long or segmented pointer */
 427         case 'T':  /* segmented pointer to null-terminated string */
 428             if ( !usecdecl ) pos -= 4;
 429             fprintf( outfile, "*(unsigned int *)(args+%d)", pos );
 430             if (  usecdecl ) pos += 4;
 431             break;
 432
 433         case 'p':  /* linear pointer */
 434         case 't':  /* linear pointer to null-terminated string */
 435             if ( !usecdecl ) pos -= 4;
 436             fprintf( outfile, "((char*)wine_ldt_copy.base[*(unsigned short*)(args+%d) >> 3] + *(unsigned short*)(args+%d))",
 437                      pos + 2, pos );
 438             if (  usecdecl ) pos += 4;
 439             break;
 440
 441         default:
 442             fprintf( stderr, "Unknown arg type '%c'\n", args[i] );
 443         }
 444     }
 445     if ( reg_func )
 446         fprintf( outfile, "%s        context", i? ",\n" : "" );
 447     else if (varargs)
 448         fprintf( outfile, "%s        args + %d", i? ",\n" : "", argsize );
 449     fprintf( outfile, " );\n}\n\n" );
 450 }
 451 #endif
 452
 453
 454 /*******************************************************************
 455  *         get_function_name
 456  */
 457 static const char *get_function_name( const ORDDEF *odp )
 458 {
 459     static char buffer[80];
 460
 461     sprintf( buffer, "%s_%s_%s",
 462              (odp->type == TYPE_PASCAL) ? "p" :
 463              (odp->type == TYPE_VARARGS) ? "v" : "c",
 464              (odp->flags & FLAG_REGISTER) ? "regs" :
 465              (odp->flags & FLAG_RET16) ? "word" : "long",
 466              odp->u.func.arg_types );
 467     return buffer;
 468 }
 469
 470
 471 /*******************************************************************
 472  *         Spec16TypeCompare
 473  */
 474 static int Spec16TypeCompare( const void *e1, const void *e2 )
 475 {
 476     const ORDDEF *odp1 = *(const ORDDEF * const *)e1;
 477     const ORDDEF *odp2 = *(const ORDDEF * const *)e2;
 478     int retval;
 479     int type1 = odp1->type;
 480     int type2 = odp2->type;
 481
 482     if (type1 == TYPE_STUB) type1 = TYPE_CDECL;
 483     if (type2 == TYPE_STUB) type2 = TYPE_CDECL;
 484
 485     if ((retval = type1 - type2) != 0) return retval;
 486
 487     type1 = odp1->flags & (FLAG_RET16|FLAG_REGISTER);
 488     type2 = odp2->flags & (FLAG_RET16|FLAG_REGISTER);
 489
 490     if ((retval = type1 - type2) != 0) return retval;
 491
 492     return strcmp( odp1->u.func.arg_types, odp2->u.func.arg_types );
 493 }
 494
 495
 496 /*******************************************************************
 497  *         output_stub_funcs
 498  *
 499  * Output the functions for stub entry points
 500 */
 501 static void output_stub_funcs( FILE *outfile, const DLLSPEC *spec )
 502 {
 503     int i;
 504     char *p;
 505
 506     for (i = 0; i <= spec->limit; i++)
 507     {
 508         ORDDEF *odp = spec->ordinals[i];
 509         if (!odp || odp->type != TYPE_STUB) continue;
 510         fprintf( outfile, "#ifdef __GNUC__\n" );
 511         fprintf( outfile, "static void __wine_unimplemented( const char *func ) __attribute__((noreturn));\n" );
 512         fprintf( outfile, "#endif\n" );
 513         fprintf( outfile, "static void __wine_unimplemented( const char *func )\n{\n" );
 514         fprintf( outfile, "  struct exc_record {\n" );
 515         fprintf( outfile, "    unsigned int code, flags;\n" );
 516         fprintf( outfile, "    void *rec, *addr;\n" );
 517         fprintf( outfile, "    unsigned int params;\n" );
 518         fprintf( outfile, "    const void *info[15];\n" );
 519         fprintf( outfile, "  } rec;\n\n" );
 520         fprintf( outfile, "  extern void __stdcall RtlRaiseException( struct exc_record * );\n\n" );
 521         fprintf( outfile, "  rec.code    = 0x%08x;\n", EXCEPTION_WINE_STUB );
 522         fprintf( outfile, "  rec.flags   = %d;\n", EH_NONCONTINUABLE );
 523         fprintf( outfile, "  rec.rec     = 0;\n" );
 524         fprintf( outfile, "  rec.params  = 2;\n" );
 525         fprintf( outfile, "  rec.info[0] = \"%s\";\n", spec->file_name );
 526         fprintf( outfile, "  rec.info[1] = func;\n" );
 527         fprintf( outfile, "#ifdef __GNUC__\n" );
 528         fprintf( outfile, "  rec.addr = __builtin_return_address(1);\n" );
 529         fprintf( outfile, "#else\n" );
 530         fprintf( outfile, "  rec.addr = 0;\n" );
 531         fprintf( outfile, "#endif\n" );
 532         fprintf( outfile, "  for (;;) RtlRaiseException( &rec );\n}\n\n" );
 533         break;
 534     }
 535     for (i = 0; i <= spec->limit; i++)
 536     {
 537         ORDDEF *odp = spec->ordinals[i];
 538         if (!odp || odp->type != TYPE_STUB) continue;
 539         odp->link_name = xrealloc( odp->link_name, strlen(odp->name) + 13 );
 540         strcpy( odp->link_name, "__wine_stub_" );
 541         strcat( odp->link_name, odp->name );
 542         for (p = odp->link_name; *p; p++) if (!isalnum(*p)) *p = '_';
 543         fprintf( outfile, "static void %s(void) { __wine_unimplemented(\"%s\"); }\n",
 544                  odp->link_name, odp->name );
 545     }
 546 }
 547
 548
 549 /*******************************************************************
 550  *         BuildSpec16File
 551  *
 552  * Build a Win16 assembly file from a spec file.
 553  */
 554 void BuildSpec16File( FILE *outfile, DLLSPEC *spec )
 555 {
 556     ORDDEF **type, **typelist;
 557     int i, nFuncs, nTypes;
 558     int code_offset, data_offset, module_size, res_size;
 559     unsigned char *data;
 560     char constructor[100], destructor[100];
 561 #ifdef __i386__
 562     unsigned short code_selector = get_cs();
 563 #endif
 564
 565     /* File header */
 566
 567     output_file_header( outfile );
 568     fprintf( outfile, "extern unsigned short __wine_call_from_16_word();\n" );
 569     fprintf( outfile, "extern unsigned int __wine_call_from_16_long();\n" );
 570     fprintf( outfile, "extern void __wine_call_from_16_regs();\n" );
 571     fprintf( outfile, "extern void __wine_call_from_16_thunk();\n" );
 572
 573     data = (unsigned char *)xmalloc( 0x10000 );
 574     memset( data, 0, 16 );
 575     data_offset = 16;
 576
 577     if (!spec->dll_name)  /* set default name from file name */
 578     {
 579         char *p;
 580         spec->dll_name = xstrdup( spec->file_name );
 581         if ((p = strrchr( spec->dll_name, '.' ))) *p = 0;
 582     }
 583
 584     output_stub_funcs( outfile, spec );
 585
 586     /* Build sorted list of all argument types, without duplicates */
 587
 588     typelist = (ORDDEF **)calloc( spec->limit+1, sizeof(ORDDEF *) );
 589
 590     for (i = nFuncs = 0; i <= spec->limit; i++)
 591     {
 592         ORDDEF *odp = spec->ordinals[i];
 593         if (!odp) continue;
 594         switch (odp->type)
 595         {
 596           case TYPE_CDECL:
 597           case TYPE_PASCAL:
 598           case TYPE_VARARGS:
 599           case TYPE_STUB:
 600             typelist[nFuncs++] = odp;
 601
 602           default:
 603             break;
 604         }
 605     }
 606
 607     qsort( typelist, nFuncs, sizeof(ORDDEF *), Spec16TypeCompare );
 608
 609     i = nTypes = 0;
 610     while ( i < nFuncs )
 611     {
 612         typelist[nTypes++] = typelist[i++];
 613         while ( i < nFuncs && Spec16TypeCompare( typelist + i, typelist + nTypes-1 ) == 0 )
 614             i++;
 615     }
 616
 617     /* Output CallFrom16 routines needed by this .spec file */
 618 #ifdef __i386__
 619     for ( i = 0; i < nTypes; i++ )
 620     {
 621         char profile[101];
 622
 623         strcpy( profile, get_function_name( typelist[i] ));
 624         BuildCallFrom16Func( outfile, profile, spec->file_name );
 625     }
 626 #endif
 627
 628     /* Output the DLL functions prototypes */
 629
 630     for (i = 0; i <= spec->limit; i++)
 631     {
 632         ORDDEF *odp = spec->ordinals[i];
 633         if (!odp) continue;
 634         switch(odp->type)
 635         {
 636         case TYPE_CDECL:
 637         case TYPE_PASCAL:
 638         case TYPE_VARARGS:
 639             fprintf( outfile, "extern void %s();\n", odp->link_name );
 640             break;
 641         default:
 642             break;
 643         }
 644     }
 645
 646     /* Output code segment */
 647
 648     fprintf( outfile, "\n#include \"pshpack1.h\"\n" );
 649     fprintf( outfile, "\nstatic struct code_segment\n{\n" );
 650     fprintf( outfile, "  struct {\n" );
 651 #ifdef __i386__
 652     fprintf( outfile, "    unsigned char pushl;\n" );      /* pushl $relay */
 653     fprintf( outfile, "    void *relay;\n" );
 654     fprintf( outfile, "    unsigned char lcall;\n" );      /* lcall __FLATCS__:glue */
 655     fprintf( outfile, "    void *glue;\n" );
 656     fprintf( outfile, "    unsigned short flatcs;\n" );
 657 #endif
 658     fprintf( outfile, "    unsigned short lret;\n" );      /* lret $args */
 659     fprintf( outfile, "    unsigned short args;\n" );
 660     fprintf( outfile, "    unsigned int arg_types[2];\n" );
 661     fprintf( outfile, "  } call[%d];\n", nTypes );
 662     fprintf( outfile, "  struct {\n" );
 663 #ifdef __i386__
 664     fprintf( outfile, "    unsigned short pushw_bp;\n" );  /* pushw %bp */
 665     fprintf( outfile, "    unsigned char pushl;\n" );      /* pushl $target */
 666 #endif
 667     fprintf( outfile, "    void (*target)();\n" );
 668     fprintf( outfile, "    unsigned short call;\n" );      /* call CALLFROM16 */
 669     fprintf( outfile, "    short callfrom16;\n" );
 670     fprintf( outfile, "  } entry[%d];\n", nFuncs );
 671     fprintf( outfile, "} code_segment =\n{\n  {\n" );
 672
 673     code_offset = 0;
 674
 675     for ( i = 0; i < nTypes; i++ )
 676     {
 677         char profile[101], *arg;
 678         unsigned int arg_types[2];
 679         int j, argsize = 0;
 680
 681         strcpy( profile, get_function_name( typelist[i] ));
 682         if ( typelist[i]->type == TYPE_PASCAL )
 683             for ( arg = typelist[i]->u.func.arg_types; *arg; arg++ )
 684                 switch ( *arg )
 685                 {
 686                 case 'w':  /* word */
 687                 case 's':  /* s_word */
 688                     argsize += 2;
 689                     break;
 690                 case 'l':  /* long or segmented pointer */
 691                 case 'T':  /* segmented pointer to null-terminated string */
 692                 case 'p':  /* linear pointer */
 693                 case 't':  /* linear pointer to null-terminated string */
 694                     argsize += 4;
 695                     break;
 696                 }
 697
 698         /* build the arg types bit fields */
 699         arg_types[0] = arg_types[1] = 0;
 700         for (j = 0; typelist[i]->u.func.arg_types[j]; j++)
 701         {
 702             int type = 0;
 703             switch(typelist[i]->u.func.arg_types[j])
 704             {
 705             case 'w': type = ARG_WORD; break;
 706             case 's': type = ARG_SWORD; break;
 707             case 'l': type = ARG_LONG; break;
 708             case 'p': type = ARG_PTR; break;
 709             case 't': type = ARG_STR; break;
 710             case 'T': type = ARG_SEGSTR; break;
 711             }
 712             arg_types[j / 10] |= type << (3 * (j % 10));
 713         }
 714         if (typelist[i]->flags & FLAG_REGISTER) arg_types[0] |= ARG_REGISTER;
 715         if (typelist[i]->flags & FLAG_RET16) arg_types[0] |= ARG_RET16;
 716
 717 #ifdef __i386__
 718         fprintf( outfile, "    { 0x68, __wine_%s_CallFrom16_%s, 0x9a, __wine_call_from_16_%s,\n",
 719                  make_c_identifier(spec->file_name), profile,
 720                  (typelist[i]->flags & FLAG_REGISTER) ? "regs":
 721                  (typelist[i]->flags & FLAG_RET16) ? "word" : "long" );
 722         if (argsize)
 723             fprintf( outfile, "      0x%04x, 0xca66, %d, { 0x%08x, 0x%08x } },\n",
 724                      code_selector, argsize, arg_types[0], arg_types[1] );
 725         else
 726             fprintf( outfile, "      0x%04x, 0xcb66, 0x9090, { 0x%08x, 0x%08x } },\n",
 727                      code_selector, arg_types[0], arg_types[1] );
 728 #else
 729         if (argsize)
 730             fprintf( outfile, "    { 0xca66, %d, { 0x%08x, 0x%08x } },\n",
 731                      argsize, arg_types[0], arg_types[1] );
 732         else
 733             fprintf( outfile, "     { 0xcb66, 0x9090, { 0x%08x, 0x%08x } },\n",
 734                      arg_types[0], arg_types[1] );
 735 #endif
 736         code_offset += sizeof(CALLFROM16);
 737     }
 738     fprintf( outfile, "  },\n  {\n" );
 739
 740     for (i = 0; i <= spec->limit; i++)
 741     {
 742         ORDDEF *odp = spec->ordinals[i];
 743         if (!odp) continue;
 744         switch (odp->type)
 745         {
 746           case TYPE_ABS:
 747             odp->offset = LOWORD(odp->u.abs.value);
 748             break;
 749
 750           case TYPE_VARIABLE:
 751             odp->offset = data_offset;
 752             data_offset += StoreVariableCode( data + data_offset, 4, odp);
 753             break;
 754
 755           case TYPE_CDECL:
 756           case TYPE_PASCAL:
 757           case TYPE_VARARGS:
 758           case TYPE_STUB:
 759             type = bsearch( &odp, typelist, nTypes, sizeof(ORDDEF *), Spec16TypeCompare );
 760             assert( type );
 761
 762             fprintf( outfile, "    /* %s.%d */ ", spec->dll_name, i );
 763 #ifdef __i386__
 764             fprintf( outfile, "{ 0x5566, 0x68, %s, 0xe866, %d  /* %s */ },\n",
 765 #else
 766             fprintf( outfile, "{ %s, 0xe866, %d, /* %s */ },\n",
 767 #endif
 768                      odp->link_name,
 769                      (type-typelist)*sizeof(CALLFROM16) -
 770                      (code_offset + sizeof(ENTRYPOINT16)),
 771                      get_function_name( odp ) );
 772
 773             odp->offset = code_offset;
 774             code_offset += sizeof(ENTRYPOINT16);
 775             break;
 776
 777           default:
 778             fprintf(stderr,"build: function type %d not available for Win16\n",
 779                     odp->type);
 780             exit(1);
 781         }
 782     }
 783
 784     fprintf( outfile, "    }\n};\n" );
 785
 786     /* Output data segment */
 787
 788     dump_bytes( outfile, data, data_offset, "Data_Segment", 0 );
 789
 790     /* Build the module */
 791
 792     module_size = BuildModule16( outfile, code_offset, data_offset, spec );
 793     res_size = output_res16_data( outfile, spec );
 794
 795     /* Output the DLL descriptor */
 796
 797     fprintf( outfile, "#include \"poppack.h\"\n\n" );
 798
 799     fprintf( outfile, "static const struct dll_descriptor\n{\n" );
 800     fprintf( outfile, "    unsigned char *module_start;\n" );
 801     fprintf( outfile, "    int module_size;\n" );
 802     fprintf( outfile, "    struct code_segment *code_start;\n" );
 803     fprintf( outfile, "    unsigned char *data_start;\n" );
 804     fprintf( outfile, "    const char *owner;\n" );
 805     fprintf( outfile, "    const unsigned char *rsrc;\n" );
 806     fprintf( outfile, "} descriptor =\n{\n" );
 807     fprintf( outfile, "    Module,\n" );
 808     fprintf( outfile, "    sizeof(Module),\n" );
 809     fprintf( outfile, "    &code_segment,\n" );
 810     fprintf( outfile, "    Data_Segment,\n" );
 811     fprintf( outfile, "    \"%s\",\n", spec->owner_name );
 812     fprintf( outfile, "    %s\n", res_size ? "resource_data" : "0" );
 813     fprintf( outfile, "};\n" );
 814
 815     /* Output the DLL constructor */
 816
 817     sprintf( constructor, "__wine_spec_%s_init", make_c_identifier(spec->file_name) );
 818     sprintf( destructor, "__wine_spec_%s_fini", make_c_identifier(spec->file_name) );
 819     output_dll_init( outfile, constructor, destructor );
 820
 821     fprintf( outfile,
 822              "void %s(void)\n"
 823              "{\n"
 824              "    extern void __wine_register_dll_16( const struct dll_descriptor *descr );\n"
 825              "    __wine_register_dll_16( &descriptor );\n"
 826              "}\n", constructor );
 827     fprintf( outfile,
 828              "void %s(void)\n"
 829              "{\n"
 830              "    extern void __wine_unregister_dll_16( const struct dll_descriptor *descr );\n"
 831              "    __wine_unregister_dll_16( &descriptor );\n"
 832              "}\n", destructor );
 833 }