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d3d8/tests: Make the window client rect match the d3d swapchain size.
[wine.git] / tools / winebuild / spec16.c
blob85bcf099999788c5706c3cda59bfb0cd14790d47
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 */
24
25 #include "config.h"
26 #include "wine/port.h"
27
28 #include <assert.h>
29 #include <ctype.h>
30
31 #include "build.h"
32
33 #define NE_FFLAGS_SINGLEDATA 0x0001
34 #define NE_FFLAGS_LIBMODULE 0x8000
35
36 /* argument type flags for relay debugging */
37 enum arg_types
38 {
39 ARG16_NONE = 0, /* indicates end of arg list */
40 ARG16_WORD, /* unsigned word */
41 ARG16_SWORD, /* signed word */
42 ARG16_LONG, /* long or segmented pointer */
43 ARG16_PTR, /* linear pointer */
44 ARG16_STR, /* linear pointer to null-terminated string */
45 ARG16_SEGSTR, /* segmented pointer to null-terminated string */
46 ARG16_VARARG /* start of varargs */
47 };
48
49 /* sequences of nops to fill a certain number of words */
50 static const char * const nop_sequence[4] =
51 {
52 ".byte 0x89,0xf6", /* mov %esi,%esi */
53 ".byte 0x8d,0x74,0x26,0x00", /* lea 0x00(%esi),%esi */
54 ".byte 0x8d,0xb6,0x00,0x00,0x00,0x00", /* lea 0x00000000(%esi),%esi */
55 ".byte 0x8d,0x74,0x26,0x00,0x8d,0x74,0x26,0x00" /* lea 0x00(%esi),%esi; lea 0x00(%esi),%esi */
56 };
57
58 static inline int is_function( const ORDDEF *odp )
59 {
60 if (odp->flags & FLAG_EXPORT32) return 0;
61 return (odp->type == TYPE_CDECL ||
62 odp->type == TYPE_PASCAL ||
63 odp->type == TYPE_VARARGS ||
64 odp->type == TYPE_STUB);
65 }
66
67 static const char *get_args_str( const ORDDEF *odp )
68 {
69 static char buffer[MAX_ARGUMENTS*2+1];
70 int i;
71
72 buffer[0] = 0;
73 for (i = 0; i < odp->u.func.nb_args; i++)
74 {
75 switch (odp->u.func.args[i])
76 {
77 case ARG_WORD: strcat( buffer, "w" ); break;
78 case ARG_SWORD: strcat( buffer, "s" ); break;
79 case ARG_SEGSTR: strcat( buffer, "T" ); break;
80 case ARG_STR: strcat( buffer, "t" ); break;
81 case ARG_LONG:
82 case ARG_FLOAT:
83 case ARG_SEGPTR: strcat( buffer, "l" ); break;
84 case ARG_PTR:
85 case ARG_WSTR:
86 case ARG_INT128: strcat( buffer, "p" ); break;
87 case ARG_INT64:
88 case ARG_DOUBLE: strcat( buffer, "ll" ); break;
89 }
90 }
91 return buffer;
92 }
93
94 /*******************************************************************
95 * output_entries
96 *
97 * Output entries for individual symbols in the entry table.
98 */
99 static void output_entries( DLLSPEC *spec, int first, int count )
100 {
101 int i;
102
103 for (i = 0; i < count; i++)
104 {
105 ORDDEF *odp = spec->ordinals[first + i];
106 output( "\t.byte 0x03\n" ); /* flags: exported & public data */
107 switch (odp->type)
108 {
109 case TYPE_CDECL:
110 case TYPE_PASCAL:
111 case TYPE_VARARGS:
112 case TYPE_STUB:
113 output( "\t.short .L__wine_%s_%u-.L__wine_spec_code_segment\n", spec->c_name, first + i );
114 break;
115 case TYPE_VARIABLE:
116 output( "\t.short .L__wine_%s_%u-.L__wine_spec_data_segment\n", spec->c_name, first + i );
117 break;
118 case TYPE_ABS:
119 output( "\t.short 0x%04x /* %s */\n",
120 odp->u.abs.value, odp->name );
121 break;
122 default:
123 assert(0);
124 }
125 }
126 }
127
128
129 /*******************************************************************
130 * output_entry_table
131 */
132 static void output_entry_table( DLLSPEC *spec )
133 {
134 int i, prev = 0, prev_sel = -1, bundle_count = 0;
135
136 for (i = 1; i <= spec->limit; i++)
137 {
138 int selector = 0;
139 ORDDEF *odp = spec->ordinals[i];
140 if (!odp) continue;
141 if (odp->flags & FLAG_EXPORT32) continue;
142
143 switch (odp->type)
144 {
145 case TYPE_CDECL:
146 case TYPE_PASCAL:
147 case TYPE_VARARGS:
148 case TYPE_STUB:
149 selector = 1; /* Code selector */
150 break;
151 case TYPE_VARIABLE:
152 selector = 2; /* Data selector */
153 break;
154 case TYPE_ABS:
155 selector = 0xfe; /* Constant selector */
156 break;
157 default:
158 continue;
159 }
160
161 if (prev + 1 != i || prev_sel != selector || bundle_count == 255)
162 {
163 /* need to start a new bundle */
164
165 /* flush previous bundle */
166 if (bundle_count)
167 {
168 output( "\t/* %s.%d - %s.%d */\n",
169 spec->dll_name, prev - bundle_count + 1, spec->dll_name, prev );
170 output( "\t.byte 0x%02x,0x%02x\n", bundle_count, prev_sel );
171 output_entries( spec, prev - bundle_count + 1, bundle_count );
172 }
173
174 if (prev + 1 != i)
175 {
176 int skip = i - (prev + 1);
177 while (skip > 255)
178 {
179 output( "\t.byte 0xff,0x00\n" );
180 skip -= 255;
181 }
182 output( "\t.byte 0x%02x,0x00\n", skip );
183 }
184
185 bundle_count = 0;
186 prev_sel = selector;
187 }
188 bundle_count++;
189 prev = i;
190 }
191
192 /* flush last bundle */
193 if (bundle_count)
194 {
195 output( "\t.byte 0x%02x,0x%02x\n", bundle_count, prev_sel );
196 output_entries( spec, prev - bundle_count + 1, bundle_count );
197 }
198 output( "\t.byte 0x00\n" );
199 }
200
201
202 /*******************************************************************
203 * output_resident_name
204 */
205 static void output_resident_name( const char *string, int ordinal )
206 {
207 unsigned int i, len = strlen(string);
208
209 output( "\t.byte 0x%02x", len );
210 for (i = 0; i < len; i++) output( ",0x%02x", (unsigned char)toupper(string[i]) );
211 output( " /* %s */\n", string );
212 output( "\t.short %u\n", ordinal );
213 }
214
215
216 /*******************************************************************
217 * get_callfrom16_name
218 */
219 static const char *get_callfrom16_name( const ORDDEF *odp )
220 {
221 static char *buffer;
222
223 free( buffer );
224 buffer = strmake( "%s_%s_%s",
225 (odp->type == TYPE_PASCAL) ? "p" :
226 (odp->type == TYPE_VARARGS) ? "v" : "c",
227 (odp->flags & FLAG_REGISTER) ? "regs" :
228 (odp->flags & FLAG_RET16) ? "word" : "long",
229 get_args_str(odp) );
230 return buffer;
231 }
232
233
234 /*******************************************************************
235 * get_relay_name
236 */
237 static const char *get_relay_name( const ORDDEF *odp )
238 {
239 static char buffer[80];
240 char *p;
241
242 switch(odp->type)
243 {
244 case TYPE_PASCAL:
245 strcpy( buffer, "p_" );
246 break;
247 case TYPE_VARARGS:
248 strcpy( buffer, "v_" );
249 break;
250 case TYPE_CDECL:
251 case TYPE_STUB:
252 strcpy( buffer, "c_" );
253 break;
254 default:
255 assert(0);
256 }
257 strcat( buffer, get_args_str(odp) );
258 for (p = buffer + 2; *p; p++)
259 {
260 /* map string types to the corresponding plain pointer type */
261 if (*p == 't') *p = 'p';
262 else if (*p == 'T') *p = 'l';
263 }
264 if (odp->flags & FLAG_REGISTER) strcat( buffer, "_regs" );
265 return buffer;
266 }
267
268
269 /*******************************************************************
270 * get_function_argsize
271 */
272 static int get_function_argsize( const ORDDEF *odp )
273 {
274 int i, argsize = 0;
275
276 for (i = 0; i < odp->u.func.nb_args; i++)
277 {
278 switch (odp->u.func.args[i])
279 {
280 case ARG_WORD:
281 case ARG_SWORD:
282 argsize += 2;
283 break;
284 case ARG_SEGPTR:
285 case ARG_SEGSTR:
286 case ARG_LONG:
287 case ARG_PTR:
288 case ARG_STR:
289 case ARG_WSTR:
290 case ARG_FLOAT:
291 case ARG_INT128:
292 argsize += 4;
293 break;
294 case ARG_INT64:
295 case ARG_DOUBLE:
296 argsize += 8;
297 break;
298 }
299 }
300 return argsize;
301 }
302
303
304 /*******************************************************************
305 * output_call16_function
306 *
307 * Build a 16-bit-to-Wine callback glue function.
308 *
309 * The generated routines are intended to be used as argument conversion
310 * routines to be called by the CallFrom16... core. Thus, the prototypes of
311 * the generated routines are (see also CallFrom16):
312 *
313 * extern WORD WINAPI __wine_spec_call16_C_xxx( FARPROC func, LPBYTE args );
314 * extern LONG WINAPI __wine_spec_call16_C_xxx( FARPROC func, LPBYTE args );
315 * extern void WINAPI __wine_spec_call16_C_xxx_regs( FARPROC func, LPBYTE args, CONTEXT86 *context );
316 *
317 * where 'C' is the calling convention ('p' for pascal or 'c' for cdecl),
318 * and each 'x' is an argument ('w'=word, 's'=signed word, 'l'=long,
319 * 'p'=linear pointer, 't'=linear pointer to null-terminated string,
320 * 'T'=segmented pointer to null-terminated string).
321 *
322 * The generated routines fetch the arguments from the 16-bit stack (pointed
323 * to by 'args'); the offsets of the single argument values are computed
324 * according to the calling convention and the argument types. Then, the
325 * 32-bit entry point is called with these arguments.
326 *
327 * For register functions, the arguments (if present) are converted just
328 * the same as for normal functions, but in addition the CONTEXT86 pointer
329 * filled with the current register values is passed to the 32-bit routine.
330 */
331 static void output_call16_function( ORDDEF *odp )
332 {
333 char *name;
334 int i, pos, stack_words;
335 int argsize = get_function_argsize( odp );
336 int needs_ldt = (strpbrk( get_args_str( odp ), "pt" ) != NULL);
337
338 name = strmake( ".L__wine_spec_call16_%s", get_relay_name(odp) );
339
340 output( "\t.align %d\n", get_alignment(4) );
341 output( "\t%s\n", func_declaration(name) );
342 output( "%s:\n", name );
343 output_cfi( ".cfi_startproc" );
344 output( "\tpushl %%ebp\n" );
345 output_cfi( ".cfi_adjust_cfa_offset 4" );
346 output_cfi( ".cfi_rel_offset %%ebp,0" );
347 output( "\tmovl %%esp,%%ebp\n" );
348 output_cfi( ".cfi_def_cfa_register %%ebp" );
349 stack_words = 2;
350 if (needs_ldt)
351 {
352 output( "\tpushl %%esi\n" );
353 output_cfi( ".cfi_rel_offset %%esi,-4" );
354 stack_words++;
355 if (UsePIC)
356 {
357 output( "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") );
358 output( "1:\tmovl wine_ldt_copy_ptr-1b(%%eax),%%esi\n" );
359 needs_get_pc_thunk = 1;
360 }
361 else
362 output( "\tmovl $%s,%%esi\n", asm_name("wine_ldt_copy") );
363 }
364
365 /* preserve 16-byte stack alignment */
366 stack_words += odp->u.func.nb_args;
367 for (i = 0; i < odp->u.func.nb_args; i++)
368 if (odp->u.func.args[i] == ARG_DOUBLE || odp->u.func.args[i] == ARG_INT64) stack_words++;
369 if ((odp->flags & FLAG_REGISTER) || (odp->type == TYPE_VARARGS)) stack_words++;
370 if (stack_words % 4) output( "\tsubl $%d,%%esp\n", 16 - 4 * (stack_words % 4) );
371
372 if (odp->u.func.nb_args || odp->type == TYPE_VARARGS)
373 output( "\tmovl 12(%%ebp),%%ecx\n" ); /* args */
374
375 if (odp->flags & FLAG_REGISTER)
376 {
377 output( "\tpushl 16(%%ebp)\n" ); /* context */
378 }
379 else if (odp->type == TYPE_VARARGS)
380 {
381 output( "\tleal %d(%%ecx),%%eax\n", argsize );
382 output( "\tpushl %%eax\n" ); /* va_list16 */
383 }
384
385 pos = (odp->type == TYPE_PASCAL) ? 0 : argsize;
386 for (i = odp->u.func.nb_args - 1; i >= 0; i--)
387 {
388 switch (odp->u.func.args[i])
389 {
390 case ARG_WORD:
391 if (odp->type != TYPE_PASCAL) pos -= 2;
392 output( "\tmovzwl %d(%%ecx),%%eax\n", pos );
393 output( "\tpushl %%eax\n" );
394 if (odp->type == TYPE_PASCAL) pos += 2;
395 break;
396
397 case ARG_SWORD:
398 if (odp->type != TYPE_PASCAL) pos -= 2;
399 output( "\tmovswl %d(%%ecx),%%eax\n", pos );
400 output( "\tpushl %%eax\n" );
401 if (odp->type == TYPE_PASCAL) pos += 2;
402 break;
403
404 case ARG_INT64:
405 case ARG_DOUBLE:
406 if (odp->type != TYPE_PASCAL) pos -= 4;
407 output( "\tpushl %d(%%ecx)\n", pos );
408 if (odp->type == TYPE_PASCAL) pos += 4;
409 /* fall through */
410 case ARG_LONG:
411 case ARG_FLOAT:
412 case ARG_SEGPTR:
413 case ARG_SEGSTR:
414 if (odp->type != TYPE_PASCAL) pos -= 4;
415 output( "\tpushl %d(%%ecx)\n", pos );
416 if (odp->type == TYPE_PASCAL) pos += 4;
417 break;
418
419 case ARG_PTR:
420 case ARG_STR:
421 case ARG_WSTR:
422 case ARG_INT128:
423 if (odp->type != TYPE_PASCAL) pos -= 4;
424 output( "\tmovzwl %d(%%ecx),%%edx\n", pos + 2 ); /* sel */
425 output( "\tshr $3,%%edx\n" );
426 output( "\tmovzwl %d(%%ecx),%%eax\n", pos ); /* offset */
427 output( "\taddl (%%esi,%%edx,4),%%eax\n" );
428 output( "\tpushl %%eax\n" );
429 if (odp->type == TYPE_PASCAL) pos += 4;
430 break;
431 }
432 }
433
434 output( "\tcall *8(%%ebp)\n" );
435
436 if (needs_ldt)
437 {
438 output( "\tmovl -4(%%ebp),%%esi\n" );
439 output_cfi( ".cfi_same_value %%esi" );
440 }
441 output( "\tleave\n" );
442 output_cfi( ".cfi_def_cfa %%esp,4" );
443 output_cfi( ".cfi_same_value %%ebp" );
444 output( "\tret\n" );
445 output_cfi( ".cfi_endproc" );
446 output_function_size( name );
447 free( name );
448 }
449
450
451 /*******************************************************************
452 * callfrom16_type_compare
453 *
454 * Compare two callfrom16 sequences.
455 */
456 static int callfrom16_type_compare( const void *e1, const void *e2 )
457 {
458 const ORDDEF *odp1 = *(const ORDDEF * const *)e1;
459 const ORDDEF *odp2 = *(const ORDDEF * const *)e2;
460 int retval;
461 int type1 = odp1->type;
462 int type2 = odp2->type;
463 char args1[80];
464
465 if (type1 == TYPE_STUB) type1 = TYPE_CDECL;
466 if (type2 == TYPE_STUB) type2 = TYPE_CDECL;
467
468 if ((retval = type1 - type2) != 0) return retval;
469
470 type1 = odp1->flags & (FLAG_RET16|FLAG_REGISTER);
471 type2 = odp2->flags & (FLAG_RET16|FLAG_REGISTER);
472
473 if ((retval = type1 - type2) != 0) return retval;
474
475 strcpy( args1, get_args_str( odp1 ));
476 return strcmp( args1, get_args_str( odp2 ));
477 }
478
479
480 /*******************************************************************
481 * relay_type_compare
482 *
483 * Same as callfrom16_type_compare but ignores differences that don't affect the resulting relay function.
484 */
485 static int relay_type_compare( const void *e1, const void *e2 )
486 {
487 const ORDDEF *odp1 = *(const ORDDEF * const *)e1;
488 const ORDDEF *odp2 = *(const ORDDEF * const *)e2;
489 char name1[80];
490
491 strcpy( name1, get_relay_name(odp1) );
492 return strcmp( name1, get_relay_name(odp2) );
493 }
494
495
496 /*******************************************************************
497 * sort_func_list
498 *
499 * Sort a list of functions, removing duplicates.
500 */
501 static int sort_func_list( ORDDEF **list, int count,
502 int (*compare)(const void *, const void *) )
503 {
504 int i, j;
505
506 if (!count) return 0;
507 qsort( list, count, sizeof(*list), compare );
508
509 for (i = j = 0; i < count; i++)
510 {
511 if (compare( &list[j], &list[i] )) list[++j] = list[i];
512 }
513 return j + 1;
514 }
515
516
517 /*******************************************************************
518 * output_module16
519 *
520 * Output code for a 16-bit module.
521 */
522 static void output_module16( DLLSPEC *spec )
523 {
524 ORDDEF **typelist;
525 ORDDEF *entry_point = NULL;
526 int i, j, nb_funcs;
527
528 /* store the main entry point as ordinal 0 */
529
530 if (!spec->ordinals)
531 {
532 assert(spec->limit == 0);
533 spec->ordinals = xmalloc( sizeof(spec->ordinals[0]) );
534 spec->ordinals[0] = NULL;
535 }
536 if (spec->init_func && !(spec->characteristics & IMAGE_FILE_DLL))
537 {
538 entry_point = xmalloc( sizeof(*entry_point) );
539 entry_point->type = TYPE_PASCAL;
540 entry_point->ordinal = 0;
541 entry_point->lineno = 0;
542 entry_point->flags = FLAG_REGISTER;
543 entry_point->name = NULL;
544 entry_point->link_name = xstrdup( spec->init_func );
545 entry_point->export_name = NULL;
546 entry_point->u.func.nb_args = 0;
547 assert( !spec->ordinals[0] );
548 spec->ordinals[0] = entry_point;
549 }
550
551 /* Build sorted list of all argument types, without duplicates */
552
553 typelist = xmalloc( (spec->limit + 1) * sizeof(*typelist) );
554
555 for (i = nb_funcs = 0; i <= spec->limit; i++)
556 {
557 ORDDEF *odp = spec->ordinals[i];
558 if (!odp) continue;
559 if (is_function( odp )) typelist[nb_funcs++] = odp;
560 }
561
562 nb_funcs = sort_func_list( typelist, nb_funcs, callfrom16_type_compare );
563
564 /* Output the module structure */
565
566 output( "\n/* module data */\n\n" );
567 output( "\t.data\n" );
568 output( "\t.align %d\n", get_alignment(4) );
569 output( ".L__wine_spec_dos_header:\n" );
570 output( "\t.short 0x5a4d\n" ); /* e_magic */
571 output( "\t.short 0\n" ); /* e_cblp */
572 output( "\t.short 0\n" ); /* e_cp */
573 output( "\t.short 0\n" ); /* e_crlc */
574 output( "\t.short 0\n" ); /* e_cparhdr */
575 output( "\t.short 0\n" ); /* e_minalloc */
576 output( "\t.short 0\n" ); /* e_maxalloc */
577 output( "\t.short 0\n" ); /* e_ss */
578 output( "\t.short 0\n" ); /* e_sp */
579 output( "\t.short 0\n" ); /* e_csum */
580 output( "\t.short 0\n" ); /* e_ip */
581 output( "\t.short 0\n" ); /* e_cs */
582 output( "\t.short 0\n" ); /* e_lfarlc */
583 output( "\t.short 0\n" ); /* e_ovno */
584 output( "\t.short 0,0,0,0\n" ); /* e_res */
585 output( "\t.short 0\n" ); /* e_oemid */
586 output( "\t.short 0\n" ); /* e_oeminfo */
587 output( "\t.short 0,0,0,0,0,0,0,0,0,0\n" ); /* e_res2 */
588 output( "\t.long .L__wine_spec_ne_header-.L__wine_spec_dos_header\n" );/* e_lfanew */
589
590 output( ".L__wine_spec_ne_header:\n" );
591 output( "\t.short 0x454e\n" ); /* ne_magic */
592 output( "\t.byte 0\n" ); /* ne_ver */
593 output( "\t.byte 0\n" ); /* ne_rev */
594 output( "\t.short .L__wine_spec_ne_enttab-.L__wine_spec_ne_header\n" );/* ne_enttab */
595 output( "\t.short .L__wine_spec_ne_enttab_end-.L__wine_spec_ne_enttab\n" );/* ne_cbenttab */
596 output( "\t.long 0\n" ); /* ne_crc */
597 output( "\t.short 0x%04x\n", NE_FFLAGS_SINGLEDATA | /* ne_flags */
598 ((spec->characteristics & IMAGE_FILE_DLL) ? NE_FFLAGS_LIBMODULE : 0) );
599 output( "\t.short 2\n" ); /* ne_autodata */
600 output( "\t.short %u\n", spec->heap_size ); /* ne_heap */
601 output( "\t.short 0\n" ); /* ne_stack */
602 if (!entry_point) output( "\t.long 0\n" ); /* ne_csip */
603 else output( "\t.short .L__wine_%s_0-.L__wine_spec_code_segment,1\n", spec->c_name );
604 output( "\t.short 0,2\n" ); /* ne_sssp */
605 output( "\t.short 2\n" ); /* ne_cseg */
606 output( "\t.short 0\n" ); /* ne_cmod */
607 output( "\t.short 0\n" ); /* ne_cbnrestab */
608 output( "\t.short .L__wine_spec_ne_segtab-.L__wine_spec_ne_header\n" );/* ne_segtab */
609 output( "\t.short .L__wine_spec_ne_rsrctab-.L__wine_spec_ne_header\n" ); /* ne_rsrctab */
610 output( "\t.short .L__wine_spec_ne_restab-.L__wine_spec_ne_header\n" ); /* ne_restab */
611 output( "\t.short .L__wine_spec_ne_modtab-.L__wine_spec_ne_header\n" ); /* ne_modtab */
612 output( "\t.short .L__wine_spec_ne_imptab-.L__wine_spec_ne_header\n" ); /* ne_imptab */
613 output( "\t.long 0\n" ); /* ne_nrestab */
614 output( "\t.short 0\n" ); /* ne_cmovent */
615 output( "\t.short 0\n" ); /* ne_align */
616 output( "\t.short 0\n" ); /* ne_cres */
617 output( "\t.byte 0x02\n" ); /* ne_exetyp = NE_OSFLAGS_WINDOWS */
618 output( "\t.byte 0x08\n" ); /* ne_flagsothers = NE_AFLAGS_FASTLOAD */
619 output( "\t.short 0\n" ); /* ne_pretthunks */
620 output( "\t.short 0\n" ); /* ne_psegrefbytes */
621 output( "\t.short 0\n" ); /* ne_swaparea */
622 output( "\t.short 0\n" ); /* ne_expver */
623
624 /* segment table */
625
626 output( "\n.L__wine_spec_ne_segtab:\n" );
627
628 /* code segment entry */
629
630 output( "\t.short .L__wine_spec_code_segment-.L__wine_spec_dos_header\n" ); /* filepos */
631 output( "\t.short .L__wine_spec_code_segment_end-.L__wine_spec_code_segment\n" ); /* size */
632 output( "\t.short 0x2000\n" ); /* flags = NE_SEGFLAGS_32BIT */
633 output( "\t.short .L__wine_spec_code_segment_end-.L__wine_spec_code_segment\n" ); /* minsize */
634
635 /* data segment entry */
636
637 output( "\t.short .L__wine_spec_data_segment-.L__wine_spec_dos_header\n" ); /* filepos */
638 output( "\t.short .L__wine_spec_data_segment_end-.L__wine_spec_data_segment\n" ); /* size */
639 output( "\t.short 0x0001\n" ); /* flags = NE_SEGFLAGS_DATA */
640 output( "\t.short .L__wine_spec_data_segment_end-.L__wine_spec_data_segment\n" ); /* minsize */
641
642 /* resource directory */
643
644 output_res16_directory( spec );
645
646 /* resident names table */
647
648 output( "\n\t.align %d\n", get_alignment(2) );
649 output( ".L__wine_spec_ne_restab:\n" );
650 output_resident_name( spec->dll_name, 0 );
651 for (i = 1; i <= spec->limit; i++)
652 {
653 ORDDEF *odp = spec->ordinals[i];
654 if (!odp || !odp->name[0]) continue;
655 if (odp->flags & FLAG_EXPORT32) continue;
656 output_resident_name( odp->name, i );
657 }
658 output( "\t.byte 0\n" );
659
660 /* imported names table */
661
662 output( "\n\t.align %d\n", get_alignment(2) );
663 output( ".L__wine_spec_ne_modtab:\n" );
664 output( ".L__wine_spec_ne_imptab:\n" );
665 output( "\t.byte 0,0\n" );
666
667 /* entry table */
668
669 output( "\n.L__wine_spec_ne_enttab:\n" );
670 output_entry_table( spec );
671 output( ".L__wine_spec_ne_enttab_end:\n" );
672
673 /* code segment */
674
675 output( "\n\t.align %d\n", get_alignment(2) );
676 output( ".L__wine_spec_code_segment:\n" );
677
678 for ( i = 0; i < nb_funcs; i++ )
679 {
680 unsigned int arg_types[2];
681 int nop_words, pos, argsize = 0;
682
683 if ( typelist[i]->type == TYPE_PASCAL )
684 argsize = get_function_argsize( typelist[i] );
685
686 /* build the arg types bit fields */
687 arg_types[0] = arg_types[1] = 0;
688 for (j = pos = 0; j < typelist[i]->u.func.nb_args && pos < 20; j++, pos++)
689 {
690 int type = 0;
691 switch (typelist[i]->u.func.args[j])
692 {
693 case ARG_WORD: type = ARG16_WORD; break;
694 case ARG_SWORD: type = ARG16_SWORD; break;
695 case ARG_SEGPTR: type = ARG16_LONG; break;
696 case ARG_SEGSTR: type = ARG16_SEGSTR; break;
697 case ARG_LONG: type = ARG16_LONG; break;
698 case ARG_PTR: type = ARG16_PTR; break;
699 case ARG_STR: type = ARG16_STR; break;
700 case ARG_WSTR: type = ARG16_PTR; break;
701 case ARG_FLOAT: type = ARG16_LONG; break;
702 case ARG_INT128: type = ARG16_PTR; break;
703 case ARG_INT64:
704 case ARG_DOUBLE:
705 type = ARG16_LONG;
706 arg_types[pos / 10] |= type << (3 * (pos % 10));
707 pos++;
708 break;
709 }
710 if (pos < 20) arg_types[pos / 10] |= type << (3 * (pos % 10));
711 }
712 if (typelist[i]->type == TYPE_VARARGS && pos < 20)
713 arg_types[pos / 10] |= ARG16_VARARG << (3 * (pos % 10));
714
715 output( ".L__wine_spec_callfrom16_%s:\n", get_callfrom16_name(typelist[i]) );
716 output( "\tpushl $.L__wine_spec_call16_%s\n", get_relay_name(typelist[i]) );
717 output( "\tlcall $0,$0\n" );
718
719 if (typelist[i]->flags & FLAG_REGISTER)
720 {
721 nop_words = 4;
722 }
723 else if (typelist[i]->flags & FLAG_RET16)
724 {
725 output( "\torw %%ax,%%ax\n" );
726 output( "\tnop\n" ); /* so that the lretw is aligned */
727 nop_words = 2;
728 }
729 else
730 {
731 output( "\tshld $16,%%eax,%%edx\n" );
732 output( "\torl %%eax,%%eax\n" );
733 nop_words = 1;
734 }
735
736 if (argsize)
737 {
738 output( "\tlretw $%u\n", argsize );
739 nop_words--;
740 }
741 else output( "\tlretw\n" );
742
743 if (nop_words) output( "\t%s\n", nop_sequence[nop_words-1] );
744
745 /* the movl is here so that the code contains only valid instructions, */
746 /* it's never actually executed, we only care about the arg_types[] values */
747 output( "\t.short 0x86c7\n" );
748 output( "\t.long 0x%08x,0x%08x\n", arg_types[0], arg_types[1] );
749 }
750
751 for (i = 0; i <= spec->limit; i++)
752 {
753 ORDDEF *odp = spec->ordinals[i];
754 if (!odp || !is_function( odp )) continue;
755 output( ".L__wine_%s_%u:\n", spec->c_name, i );
756 output( "\tpushw %%bp\n" );
757 output( "\tpushl $%s\n",
758 asm_name( odp->type == TYPE_STUB ? get_stub_name( odp, spec ) : odp->link_name ));
759 output( "\tcallw .L__wine_spec_callfrom16_%s\n", get_callfrom16_name( odp ) );
760 }
761 output( ".L__wine_spec_code_segment_end:\n" );
762
763 /* data segment */
764
765 output( "\n.L__wine_spec_data_segment:\n" );
766 output( "\t.byte 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0\n" ); /* instance data */
767 for (i = 0; i <= spec->limit; i++)
768 {
769 ORDDEF *odp = spec->ordinals[i];
770 if (!odp || odp->type != TYPE_VARIABLE) continue;
771 output( ".L__wine_%s_%u:\n", spec->c_name, i );
772 output( "\t.long " );
773 for (j = 0; j < odp->u.var.n_values-1; j++)
774 output( "0x%08x,", odp->u.var.values[j] );
775 output( "0x%08x\n", odp->u.var.values[j] );
776 }
777 output( ".L__wine_spec_data_segment_end:\n" );
778
779 /* resource data */
780
781 if (spec->nb_resources)
782 {
783 output( "\n.L__wine_spec_resource_data:\n" );
784 output_res16_data( spec );
785 }
786
787 output( "\t.byte 0\n" ); /* make sure the last symbol points to something */
788
789 /* relay functions */
790
791 nb_funcs = sort_func_list( typelist, nb_funcs, relay_type_compare );
792 if (nb_funcs)
793 {
794 output( "\n/* relay functions */\n\n" );
795 output( "\t.text\n" );
796 for ( i = 0; i < nb_funcs; i++ ) output_call16_function( typelist[i] );
797 output( "\t.data\n" );
798 output( "wine_ldt_copy_ptr:\n" );
799 output( "\t.long %s\n", asm_name("wine_ldt_copy") );
800 }
801
802 free( typelist );
803 }
804
805
806 /*******************************************************************
807 * output_spec16_file
808 *
809 * Output the complete data for a spec 16-bit file.
810 */
811 void output_spec16_file( DLLSPEC *spec16 )
812 {
813 DLLSPEC *spec32 = alloc_dll_spec();
814
815 resolve_imports( spec16 );
816 add_16bit_exports( spec32, spec16 );
817
818 needs_get_pc_thunk = 0;
819 output_standard_file_header();
820 output_module( spec32 );
821 output_module16( spec16 );
822 output_stubs( spec16 );
823 output_exports( spec32 );
824 output_imports( spec16 );
825 if (is_undefined( "__wine_call_from_16" )) output_asm_relays16();
826 if (needs_get_pc_thunk) output_get_pc_thunk();
827 if (spec16->main_module)
828 {
829 output( "\n\t%s\n", get_asm_string_section() );
830 output( ".L__wine_spec_main_module:\n" );
831 output( "\t%s \"%s\"\n", get_asm_string_keyword(), spec16->main_module );
832 }
833 output_gnu_stack_note();
834 free_dll_spec( spec32 );
835 }
836
837 /*******************************************************************
838 * output_fake_module16
839 *
840 * Create a fake 16-bit binary module.
841 */
842 void output_fake_module16( DLLSPEC *spec )
843 {
844 static const unsigned char code_segment[] = { 0x90, 0xc3 };
845 static const unsigned char data_segment[16] = { 0 };
846 static const char fakedll_signature[] = "Wine placeholder DLL";
847 const unsigned int cseg = 2;
848 const unsigned int lfanew = (0x40 + sizeof(fakedll_signature) + 15) & ~15;
849 const unsigned int segtab = lfanew + 0x40;
850
851 unsigned int i, rsrctab, restab, namelen, modtab, imptab, enttab, cbenttab, codeseg, dataseg, rsrcdata;
852
853 init_output_buffer();
854
855 rsrctab = lfanew;
856 restab = segtab + 8 * cseg;
857 if (spec->nb_resources)
858 {
859 output_bin_res16_directory( spec, 0 );
860 align_output( 2 );
861 rsrctab = restab;
862 restab += output_buffer_pos;
863 free( output_buffer );
864 init_output_buffer();
865 }
866
867 namelen = strlen( spec->dll_name );
868 modtab = restab + ((namelen + 3) & ~1);
869 imptab = modtab;
870 enttab = modtab + 2;
871 cbenttab = 1;
872 codeseg = (enttab + cbenttab + 1) & ~1;
873 dataseg = codeseg + sizeof(code_segment);
874 rsrcdata = dataseg + sizeof(data_segment);
875
876 init_output_buffer();
877
878 put_word( 0x5a4d ); /* e_magic */
879 put_word( 0x40 ); /* e_cblp */
880 put_word( 0x01 ); /* e_cp */
881 put_word( 0 ); /* e_crlc */
882 put_word( lfanew / 16 ); /* e_cparhdr */
883 put_word( 0x0000 ); /* e_minalloc */
884 put_word( 0xffff ); /* e_maxalloc */
885 put_word( 0x0000 ); /* e_ss */
886 put_word( 0x00b8 ); /* e_sp */
887 put_word( 0 ); /* e_csum */
888 put_word( 0 ); /* e_ip */
889 put_word( 0 ); /* e_cs */
890 put_word( lfanew ); /* e_lfarlc */
891 put_word( 0 ); /* e_ovno */
892 put_dword( 0 ); /* e_res */
893 put_dword( 0 );
894 put_word( 0 ); /* e_oemid */
895 put_word( 0 ); /* e_oeminfo */
896 put_dword( 0 ); /* e_res2 */
897 put_dword( 0 );
898 put_dword( 0 );
899 put_dword( 0 );
900 put_dword( 0 );
901 put_dword( lfanew );
902
903 put_data( fakedll_signature, sizeof(fakedll_signature) );
904 align_output( 16 );
905
906 put_word( 0x454e ); /* ne_magic */
907 put_byte( 0 ); /* ne_ver */
908 put_byte( 0 ); /* ne_rev */
909 put_word( enttab - lfanew ); /* ne_enttab */
910 put_word( cbenttab ); /* ne_cbenttab */
911 put_dword( 0 ); /* ne_crc */
912 put_word( NE_FFLAGS_SINGLEDATA | /* ne_flags */
913 ((spec->characteristics & IMAGE_FILE_DLL) ? NE_FFLAGS_LIBMODULE : 0) );
914 put_word( 2 ); /* ne_autodata */
915 put_word( spec->heap_size ); /* ne_heap */
916 put_word( 0 ); /* ne_stack */
917 put_word( 0 ); put_word( 0 ); /* ne_csip */
918 put_word( 0 ); put_word( 2 ); /* ne_sssp */
919 put_word( cseg ); /* ne_cseg */
920 put_word( 0 ); /* ne_cmod */
921 put_word( 0 ); /* ne_cbnrestab */
922 put_word( segtab - lfanew ); /* ne_segtab */
923 put_word( rsrctab - lfanew ); /* ne_rsrctab */
924 put_word( restab - lfanew ); /* ne_restab */
925 put_word( modtab - lfanew ); /* ne_modtab */
926 put_word( imptab - lfanew ); /* ne_imptab */
927 put_dword( 0 ); /* ne_nrestab */
928 put_word( 0 ); /* ne_cmovent */
929 put_word( 0 ); /* ne_align */
930 put_word( 0 ); /* ne_cres */
931 put_byte( 2 /*NE_OSFLAGS_WINDOWS*/ ); /* ne_exetyp */
932 put_byte( 8 /*NE_AFLAGS_FASTLOAD*/ ); /* ne_flagsothers */
933 put_word( 0 ); /* ne_pretthunks */
934 put_word( 0 ); /* ne_psegrefbytes */
935 put_word( 0 ); /* ne_swaparea */
936 put_word( 0 ); /* ne_expver */
937
938 /* segment table */
939 put_word( codeseg );
940 put_word( sizeof(code_segment) );
941 put_word( 0x2000 /* NE_SEGFLAGS_32BIT */ );
942 put_word( sizeof(code_segment) );
943 put_word( dataseg );
944 put_word( sizeof(data_segment) );
945 put_word( 0x0001 /* NE_SEGFLAGS_DATA */ );
946 put_word( sizeof(data_segment) );
947
948 /* resource directory */
949 if (spec->nb_resources)
950 {
951 output_bin_res16_directory( spec, rsrcdata );
952 align_output( 2 );
953 }
954
955 /* resident names table */
956 put_byte( namelen );
957 for (i = 0; i < namelen; i++) put_byte( toupper(spec->dll_name[i]) );
958 put_byte( 0 );
959 align_output( 2 );
960
961 /* imported names table */
962 put_word( 0 );
963
964 /* entry table */
965 put_byte( 0 );
966 align_output( 2 );
967
968 /* code segment */
969 put_data( code_segment, sizeof(code_segment) );
970
971 /* data segment */
972 put_data( data_segment, sizeof(data_segment) );
973
974 /* resource data */
975 output_bin_res16_data( spec );
976
977 flush_output_buffer();
978 }
Windows API implementation