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Improved Winelib apps initialisation code. No longer need to link
[wine.git] / tools / build.c
blob4bd1cd888e3b33bd46b8ef75df004cada4d9549b
1 /*
2 * Copyright 1993 Robert J. Amstadt
3 * Copyright 1995 Martin von Loewis
4 * Copyright 1995, 1996, 1997 Alexandre Julliard
5 * Copyright 1997 Eric Youngdale
6 * Copyright 1999 Ulrich Weigand
7 */
8
9 #include "config.h"
10
11 #include <assert.h>
12 #include <stdarg.h>
13 #include <stdio.h>
14 #include <stdlib.h>
15 #include <string.h>
16 #include <ctype.h>
17 #include <unistd.h>
18
19 #include "winbase.h"
20 #include "winnt.h"
21 #include "module.h"
22 #include "neexe.h"
23 #include "stackframe.h"
24 #include "builtin16.h"
25 #include "thread.h"
26
27 #ifdef NEED_UNDERSCORE_PREFIX
28 # define PREFIX "_"
29 #else
30 # define PREFIX
31 #endif
32
33 #ifdef HAVE_ASM_STRING
34 # define STRING ".string"
35 #else
36 # define STRING ".ascii"
37 #endif
38
39 #if defined(__GNUC__) && !defined(__svr4__)
40 # define USE_STABS
41 #else
42 # undef USE_STABS
43 #endif
44
45 #ifdef __i386__
46 extern WORD __get_cs(void);
47 extern WORD __get_ds(void);
48 __ASM_GLOBAL_FUNC( __get_cs, "movw %cs,%ax\n\tret" );
49 __ASM_GLOBAL_FUNC( __get_ds, "movw %ds,%ax\n\tret" );
50 #else
51 static inline WORD __get_cs(void) { return 0; }
52 static inline WORD __get_ds(void) { return 0; }
53 #endif
54
55 typedef enum
56 {
57 TYPE_BYTE, /* byte variable (Win16) */
58 TYPE_WORD, /* word variable (Win16) */
59 TYPE_LONG, /* long variable (Win16) */
60 TYPE_PASCAL_16, /* pascal function with 16-bit return (Win16) */
61 TYPE_PASCAL, /* pascal function with 32-bit return (Win16) */
62 TYPE_ABS, /* absolute value (Win16) */
63 TYPE_REGISTER, /* register function */
64 TYPE_INTERRUPT, /* interrupt handler function (Win16) */
65 TYPE_STUB, /* unimplemented stub */
66 TYPE_STDCALL, /* stdcall function (Win32) */
67 TYPE_CDECL, /* cdecl function (Win32) */
68 TYPE_VARARGS, /* varargs function (Win32) */
69 TYPE_EXTERN, /* external symbol (Win32) */
70 TYPE_FORWARD, /* forwarded function (Win32) */
71 TYPE_NBTYPES
72 } ORD_TYPE;
73
74 static const char * const TypeNames[TYPE_NBTYPES] =
75 {
76 "byte", /* TYPE_BYTE */
77 "word", /* TYPE_WORD */
78 "long", /* TYPE_LONG */
79 "pascal16", /* TYPE_PASCAL_16 */
80 "pascal", /* TYPE_PASCAL */
81 "equate", /* TYPE_ABS */
82 "register", /* TYPE_REGISTER */
83 "interrupt", /* TYPE_INTERRUPT */
84 "stub", /* TYPE_STUB */
85 "stdcall", /* TYPE_STDCALL */
86 "cdecl", /* TYPE_CDECL */
87 "varargs", /* TYPE_VARARGS */
88 "extern", /* TYPE_EXTERN */
89 "forward" /* TYPE_FORWARD */
90 };
91
92 #define MAX_ORDINALS 2048
93 #define MAX_IMPORTS 16
94
95 /* Callback function used for stub functions */
96 #define STUB_CALLBACK \
97 ((SpecType == SPEC_WIN16) ? "RELAY_Unimplemented16": "RELAY_Unimplemented32")
98
99 typedef enum
100 {
101 SPEC_INVALID,
102 SPEC_WIN16,
103 SPEC_WIN32
104 } SPEC_TYPE;
105
106 typedef enum
107 {
108 SPEC_MODE_DLL,
109 SPEC_MODE_GUIEXE,
110 SPEC_MODE_CUIEXE
111 } SPEC_MODE;
112
113 typedef struct
114 {
115 int n_values;
116 int *values;
117 } ORD_VARIABLE;
118
119 typedef struct
120 {
121 int n_args;
122 char arg_types[32];
123 char link_name[80];
124 } ORD_FUNCTION;
125
126 typedef struct
127 {
128 int value;
129 } ORD_ABS;
130
131 typedef struct
132 {
133 char link_name[80];
134 } ORD_EXTERN;
135
136 typedef struct
137 {
138 char link_name[80];
139 } ORD_FORWARD;
140
141 typedef struct
142 {
143 ORD_TYPE type;
144 int ordinal;
145 int offset;
146 int lineno;
147 char name[80];
148 union
149 {
150 ORD_VARIABLE var;
151 ORD_FUNCTION func;
152 ORD_ABS abs;
153 ORD_EXTERN ext;
154 ORD_FORWARD fwd;
155 } u;
156 } ORDDEF;
157
158 static ORDDEF EntryPoints[MAX_ORDINALS];
159 static ORDDEF *Ordinals[MAX_ORDINALS];
160 static ORDDEF *Names[MAX_ORDINALS];
161
162 static SPEC_TYPE SpecType = SPEC_INVALID;
163 static SPEC_MODE SpecMode = SPEC_MODE_DLL;
164 static char DLLName[80];
165 static char DLLFileName[80];
166 static int Limit = 0;
167 static int Base = MAX_ORDINALS;
168 static int DLLHeapSize = 0;
169 static FILE *SpecFp;
170 static WORD Code_Selector, Data_Selector;
171 static char DLLInitFunc[80];
172 static char *DLLImports[MAX_IMPORTS];
173 static char rsrc_name[80];
174 static int nb_imports;
175 static int nb_entry_points;
176 static int nb_names;
177 static const char *input_file_name;
178 static const char *output_file_name;
179
180 char *ParseBuffer = NULL;
181 char *ParseNext;
182 char ParseSaveChar;
183 int Line;
184
185 static int UsePIC = 0;
186
187 static int debugging = 1;
188
189 /* Offset of a structure field relative to the start of the struct */
190 #define STRUCTOFFSET(type,field) ((int)&((type *)0)->field)
191
192 /* Offset of register relative to the start of the CONTEXT struct */
193 #define CONTEXTOFFSET(reg) STRUCTOFFSET(CONTEXT86,reg)
194
195 /* Offset of register relative to the start of the STACK16FRAME struct */
196 #define STACK16OFFSET(reg) STRUCTOFFSET(STACK16FRAME,reg)
197
198 /* Offset of register relative to the start of the STACK32FRAME struct */
199 #define STACK32OFFSET(reg) STRUCTOFFSET(STACK32FRAME,reg)
200
201 /* Offset of the stack pointer relative to %fs:(0) */
202 #define STACKOFFSET (STRUCTOFFSET(TEB,cur_stack))
203
204 static void BuildCallFrom16Func( FILE *outfile, char *profile, char *prefix, int local );
205
206 static void *xmalloc (size_t size)
207 {
208 void *res;
209
210 res = malloc (size ? size : 1);
211 if (res == NULL)
212 {
213 fprintf (stderr, "Virtual memory exhausted.\n");
214 if (output_file_name) unlink( output_file_name );
215 exit (1);
216 }
217 return res;
218 }
219
220
221 static void *xrealloc (void *ptr, size_t size)
222 {
223 void *res = realloc (ptr, size);
224 if (res == NULL)
225 {
226 fprintf (stderr, "Virtual memory exhausted.\n");
227 if (output_file_name) unlink( output_file_name );
228 exit (1);
229 }
230 return res;
231 }
232
233 static char *xstrdup( const char *str )
234 {
235 char *res = strdup( str );
236 if (!res)
237 {
238 fprintf (stderr, "Virtual memory exhausted.\n");
239 if (output_file_name) unlink( output_file_name );
240 exit (1);
241 }
242 return res;
243 }
244
245 static void fatal_error( const char *msg, ... )
246 {
247 va_list valist;
248 va_start( valist, msg );
249 fprintf( stderr, "%s:%d: ", input_file_name, Line );
250 vfprintf( stderr, msg, valist );
251 va_end( valist );
252 if (output_file_name) unlink( output_file_name );
253 exit(1);
254 }
255
256 static int IsNumberString(char *s)
257 {
258 while (*s != '\0')
259 if (!isdigit(*s++))
260 return 0;
261
262 return 1;
263 }
264
265 static char *strupper(char *s)
266 {
267 char *p;
268
269 for(p = s; *p != '\0'; p++)
270 *p = toupper(*p);
271
272 return s;
273 }
274
275 static char * GetTokenInLine(void)
276 {
277 char *p;
278 char *token;
279
280 if (ParseNext != ParseBuffer)
281 {
282 if (ParseSaveChar == '\0')
283 return NULL;
284 *ParseNext = ParseSaveChar;
285 }
286
287 /*
288 * Remove initial white space.
289 */
290 for (p = ParseNext; isspace(*p); p++)
291 ;
292
293 if ((*p == '\0') || (*p == '#'))
294 return NULL;
295
296 /*
297 * Find end of token.
298 */
299 token = p++;
300 if (*token != '(' && *token != ')')
301 while (*p != '\0' && *p != '(' && *p != ')' && !isspace(*p))
302 p++;
303
304 ParseSaveChar = *p;
305 ParseNext = p;
306 *p = '\0';
307
308 return token;
309 }
310
311 static char * GetToken(void)
312 {
313 char *token;
314
315 if (ParseBuffer == NULL)
316 {
317 ParseBuffer = xmalloc(512);
318 ParseNext = ParseBuffer;
319 while (1)
320 {
321 Line++;
322 if (fgets(ParseBuffer, 511, SpecFp) == NULL)
323 return NULL;
324 if (ParseBuffer[0] != '#')
325 break;
326 }
327 }
328
329 while ((token = GetTokenInLine()) == NULL)
330 {
331 ParseNext = ParseBuffer;
332 while (1)
333 {
334 Line++;
335 if (fgets(ParseBuffer, 511, SpecFp) == NULL)
336 return NULL;
337 if (ParseBuffer[0] != '#')
338 break;
339 }
340 }
341
342 return token;
343 }
344
345
346 static int name_compare( const void *name1, const void *name2 )
347 {
348 ORDDEF *odp1 = *(ORDDEF **)name1;
349 ORDDEF *odp2 = *(ORDDEF **)name2;
350 return strcmp( odp1->name, odp2->name );
351 }
352
353 /*******************************************************************
354 * AssignOrdinals
355 *
356 * Assign ordinals to all entry points.
357 */
358 static void AssignOrdinals(void)
359 {
360 int i, ordinal;
361
362 if ( !nb_names ) return;
363
364 /* sort the list of names */
365 qsort( Names, nb_names, sizeof(Names[0]), name_compare );
366
367 /* check for duplicate names */
368 for (i = 0; i < nb_names - 1; i++)
369 {
370 if (!strcmp( Names[i]->name, Names[i+1]->name ))
371 {
372 Line = max( Names[i]->lineno, Names[i+1]->lineno );
373 fatal_error( "'%s' redefined (previous definition at line %d)\n",
374 Names[i]->name, min( Names[i]->lineno, Names[i+1]->lineno ) );
375 }
376 }
377
378 /* start assigning from Base, or from 1 if no ordinal defined yet */
379 if (Base == MAX_ORDINALS) Base = 1;
380 for (i = 0, ordinal = Base; i < nb_names; i++)
381 {
382 if (Names[i]->ordinal != -1) continue; /* already has an ordinal */
383 while (Ordinals[ordinal]) ordinal++;
384 if (ordinal >= MAX_ORDINALS)
385 {
386 Line = Names[i]->lineno;
387 fatal_error( "Too many functions defined (max %d)\n", MAX_ORDINALS );
388 }
389 Names[i]->ordinal = ordinal;
390 Ordinals[ordinal] = Names[i];
391 }
392 if (ordinal > Limit) Limit = ordinal;
393 }
394
395
396 /*******************************************************************
397 * ParseVariable
398 *
399 * Parse a variable definition.
400 */
401 static void ParseVariable( ORDDEF *odp )
402 {
403 char *endptr;
404 int *value_array;
405 int n_values;
406 int value_array_size;
407
408 char *token = GetToken();
409 if (*token != '(') fatal_error( "Expected '(' got '%s'\n", token );
410
411 n_values = 0;
412 value_array_size = 25;
413 value_array = xmalloc(sizeof(*value_array) * value_array_size);
414
415 while ((token = GetToken()) != NULL)
416 {
417 if (*token == ')')
418 break;
419
420 value_array[n_values++] = strtol(token, &endptr, 0);
421 if (n_values == value_array_size)
422 {
423 value_array_size += 25;
424 value_array = xrealloc(value_array,
425 sizeof(*value_array) * value_array_size);
426 }
427
428 if (endptr == NULL || *endptr != '\0')
429 fatal_error( "Expected number value, got '%s'\n", token );
430 }
431
432 if (token == NULL)
433 fatal_error( "End of file in variable declaration\n" );
434
435 odp->u.var.n_values = n_values;
436 odp->u.var.values = xrealloc(value_array, sizeof(*value_array) * n_values);
437 }
438
439
440 /*******************************************************************
441 * ParseExportFunction
442 *
443 * Parse a function definition.
444 */
445 static void ParseExportFunction( ORDDEF *odp )
446 {
447 char *token;
448 int i;
449
450 switch(SpecType)
451 {
452 case SPEC_WIN16:
453 if (odp->type == TYPE_STDCALL)
454 fatal_error( "'stdcall' not supported for Win16\n" );
455 if (odp->type == TYPE_VARARGS)
456 fatal_error( "'varargs' not supported for Win16\n" );
457 break;
458 case SPEC_WIN32:
459 if ((odp->type == TYPE_PASCAL) || (odp->type == TYPE_PASCAL_16))
460 fatal_error( "'pascal' not supported for Win32\n" );
461 break;
462 default:
463 break;
464 }
465
466 token = GetToken();
467 if (*token != '(') fatal_error( "Expected '(' got '%s'\n", token );
468
469 for (i = 0; i < sizeof(odp->u.func.arg_types)-1; i++)
470 {
471 token = GetToken();
472 if (*token == ')')
473 break;
474
475 if (!strcmp(token, "word"))
476 odp->u.func.arg_types[i] = 'w';
477 else if (!strcmp(token, "s_word"))
478 odp->u.func.arg_types[i] = 's';
479 else if (!strcmp(token, "long") || !strcmp(token, "segptr"))
480 odp->u.func.arg_types[i] = 'l';
481 else if (!strcmp(token, "ptr"))
482 odp->u.func.arg_types[i] = 'p';
483 else if (!strcmp(token, "str"))
484 odp->u.func.arg_types[i] = 't';
485 else if (!strcmp(token, "wstr"))
486 odp->u.func.arg_types[i] = 'W';
487 else if (!strcmp(token, "segstr"))
488 odp->u.func.arg_types[i] = 'T';
489 else if (!strcmp(token, "double"))
490 {
491 odp->u.func.arg_types[i++] = 'l';
492 odp->u.func.arg_types[i] = 'l';
493 }
494 else fatal_error( "Unknown variable type '%s'\n", token );
495
496 if (SpecType == SPEC_WIN32)
497 {
498 if (strcmp(token, "long") &&
499 strcmp(token, "ptr") &&
500 strcmp(token, "str") &&
501 strcmp(token, "wstr") &&
502 strcmp(token, "double"))
503 {
504 fatal_error( "Type '%s' not supported for Win32\n", token );
505 }
506 }
507 }
508 if ((*token != ')') || (i >= sizeof(odp->u.func.arg_types)))
509 fatal_error( "Too many arguments\n" );
510
511 odp->u.func.arg_types[i] = '\0';
512 if ((odp->type == TYPE_STDCALL) && !i)
513 odp->type = TYPE_CDECL; /* stdcall is the same as cdecl for 0 args */
514 strcpy(odp->u.func.link_name, GetToken());
515 }
516
517
518 /*******************************************************************
519 * ParseEquate
520 *
521 * Parse an 'equate' definition.
522 */
523 static void ParseEquate( ORDDEF *odp )
524 {
525 char *endptr;
526
527 char *token = GetToken();
528 int value = strtol(token, &endptr, 0);
529 if (endptr == NULL || *endptr != '\0')
530 fatal_error( "Expected number value, got '%s'\n", token );
531 if (SpecType == SPEC_WIN32)
532 fatal_error( "'equate' not supported for Win32\n" );
533 odp->u.abs.value = value;
534 }
535
536
537 /*******************************************************************
538 * ParseStub
539 *
540 * Parse a 'stub' definition.
541 */
542 static void ParseStub( ORDDEF *odp )
543 {
544 odp->u.func.arg_types[0] = '\0';
545 strcpy( odp->u.func.link_name, STUB_CALLBACK );
546 }
547
548
549 /*******************************************************************
550 * ParseInterrupt
551 *
552 * Parse an 'interrupt' definition.
553 */
554 static void ParseInterrupt( ORDDEF *odp )
555 {
556 char *token;
557
558 if (SpecType == SPEC_WIN32)
559 fatal_error( "'interrupt' not supported for Win32\n" );
560
561 token = GetToken();
562 if (*token != '(') fatal_error( "Expected '(' got '%s'\n", token );
563
564 token = GetToken();
565 if (*token != ')') fatal_error( "Expected ')' got '%s'\n", token );
566
567 odp->u.func.arg_types[0] = '\0';
568 strcpy( odp->u.func.link_name, GetToken() );
569 }
570
571
572 /*******************************************************************
573 * ParseExtern
574 *
575 * Parse an 'extern' definition.
576 */
577 static void ParseExtern( ORDDEF *odp )
578 {
579 if (SpecType == SPEC_WIN16) fatal_error( "'extern' not supported for Win16\n" );
580 strcpy( odp->u.ext.link_name, GetToken() );
581 }
582
583
584 /*******************************************************************
585 * ParseForward
586 *
587 * Parse a 'forward' definition.
588 */
589 static void ParseForward( ORDDEF *odp )
590 {
591 if (SpecType == SPEC_WIN16) fatal_error( "'forward' not supported for Win16\n" );
592 strcpy( odp->u.fwd.link_name, GetToken() );
593 }
594
595
596 /*******************************************************************
597 * ParseOrdinal
598 *
599 * Parse an ordinal definition.
600 */
601 static void ParseOrdinal(int ordinal)
602 {
603 char *token;
604
605 ORDDEF *odp = &EntryPoints[nb_entry_points++];
606
607 if (!(token = GetToken())) fatal_error( "Expected type after ordinal\n" );
608
609 for (odp->type = 0; odp->type < TYPE_NBTYPES; odp->type++)
610 if (TypeNames[odp->type] && !strcmp( token, TypeNames[odp->type] ))
611 break;
612
613 if (odp->type >= TYPE_NBTYPES)
614 fatal_error( "Expected type after ordinal, found '%s' instead\n", token );
615
616 if (!(token = GetToken())) fatal_error( "Expected name after type\n" );
617
618 strcpy( odp->name, token );
619 odp->lineno = Line;
620 odp->ordinal = ordinal;
621
622 switch(odp->type)
623 {
624 case TYPE_BYTE:
625 case TYPE_WORD:
626 case TYPE_LONG:
627 ParseVariable( odp );
628 break;
629 case TYPE_REGISTER:
630 ParseExportFunction( odp );
631 #ifndef __i386__
632 /* ignore Win32 'register' routines on non-Intel archs */
633 if (SpecType == SPEC_WIN32)
634 {
635 nb_entry_points--;
636 return;
637 }
638 #endif
639 break;
640 case TYPE_PASCAL_16:
641 case TYPE_PASCAL:
642 case TYPE_STDCALL:
643 case TYPE_VARARGS:
644 case TYPE_CDECL:
645 ParseExportFunction( odp );
646 break;
647 case TYPE_INTERRUPT:
648 ParseInterrupt( odp );
649 break;
650 case TYPE_ABS:
651 ParseEquate( odp );
652 break;
653 case TYPE_STUB:
654 ParseStub( odp );
655 break;
656 case TYPE_EXTERN:
657 ParseExtern( odp );
658 break;
659 case TYPE_FORWARD:
660 ParseForward( odp );
661 break;
662 default:
663 assert( 0 );
664 }
665
666 if (ordinal != -1)
667 {
668 if (ordinal >= MAX_ORDINALS) fatal_error( "Ordinal number %d too large\n", ordinal );
669 if (ordinal > Limit) Limit = ordinal;
670 if (ordinal < Base) Base = ordinal;
671 odp->ordinal = ordinal;
672 Ordinals[ordinal] = odp;
673 }
674
675 if (!strcmp( odp->name, "@" ))
676 {
677 if (ordinal == -1)
678 fatal_error( "Nameless function needs an explicit ordinal number\n" );
679 if (SpecType != SPEC_WIN32)
680 fatal_error( "Nameless functions not supported for Win16\n" );
681 odp->name[0] = 0;
682 }
683 else Names[nb_names++] = odp;
684 }
685
686
687 /*******************************************************************
688 * ParseTopLevel
689 *
690 * Parse a spec file.
691 */
692 static void ParseTopLevel(void)
693 {
694 char *token;
695
696 while ((token = GetToken()) != NULL)
697 {
698 if (strcmp(token, "name") == 0)
699 {
700 strcpy(DLLName, GetToken());
701 strupper(DLLName);
702 }
703 else if (strcmp(token, "file") == 0)
704 {
705 strcpy(DLLFileName, GetToken());
706 strupper(DLLFileName);
707 }
708 else if (strcmp(token, "type") == 0)
709 {
710 token = GetToken();
711 if (!strcmp(token, "win16" )) SpecType = SPEC_WIN16;
712 else if (!strcmp(token, "win32" )) SpecType = SPEC_WIN32;
713 else fatal_error( "Type must be 'win16' or 'win32'\n" );
714 }
715 else if (strcmp(token, "mode") == 0)
716 {
717 token = GetToken();
718 if (!strcmp(token, "dll" )) SpecMode = SPEC_MODE_DLL;
719 else if (!strcmp(token, "guiexe" )) SpecMode = SPEC_MODE_GUIEXE;
720 else if (!strcmp(token, "cuiexe" )) SpecMode = SPEC_MODE_CUIEXE;
721 else fatal_error( "Mode must be 'dll', 'guiexe' or 'cuiexe'\n" );
722 }
723 else if (strcmp(token, "heap") == 0)
724 {
725 token = GetToken();
726 if (!IsNumberString(token)) fatal_error( "Expected number after heap\n" );
727 DLLHeapSize = atoi(token);
728 }
729 else if (strcmp(token, "init") == 0)
730 {
731 strcpy(DLLInitFunc, GetToken());
732 if (SpecType == SPEC_WIN16)
733 fatal_error( "init cannot be used for Win16 spec files\n" );
734 if (!DLLInitFunc[0])
735 fatal_error( "Expected function name after init\n" );
736 if (!strcmp(DLLInitFunc, "main"))
737 fatal_error( "The init function cannot be named 'main'\n" );
738 }
739 else if (strcmp(token, "import") == 0)
740 {
741 if (nb_imports >= MAX_IMPORTS)
742 fatal_error( "Too many imports (limit %d)\n", MAX_IMPORTS );
743 if (SpecType != SPEC_WIN32)
744 fatal_error( "Imports not supported for Win16\n" );
745 DLLImports[nb_imports++] = xstrdup(GetToken());
746 }
747 else if (strcmp(token, "rsrc") == 0)
748 {
749 strcpy( rsrc_name, GetToken() );
750 strcat( rsrc_name, "_ResourceDescriptor" );
751 }
752 else if (strcmp(token, "@") == 0)
753 {
754 if (SpecType != SPEC_WIN32)
755 fatal_error( "'@' ordinals not supported for Win16\n" );
756 ParseOrdinal( -1 );
757 }
758 else if (IsNumberString(token))
759 {
760 ParseOrdinal( atoi(token) );
761 }
762 else
763 fatal_error( "Expected name, id, length or ordinal\n" );
764 }
765
766 if (!DLLFileName[0])
767 {
768 if (SpecMode == SPEC_MODE_DLL)
769 sprintf( DLLFileName, "%s.DLL", DLLName );
770 else
771 sprintf( DLLFileName, "%s.EXE", DLLName );
772 }
773 }
774
775
776 /*******************************************************************
777 * StoreVariableCode
778 *
779 * Store a list of ints into a byte array.
780 */
781 static int StoreVariableCode( unsigned char *buffer, int size, ORDDEF *odp )
782 {
783 int i;
784
785 switch(size)
786 {
787 case 1:
788 for (i = 0; i < odp->u.var.n_values; i++)
789 buffer[i] = odp->u.var.values[i];
790 break;
791 case 2:
792 for (i = 0; i < odp->u.var.n_values; i++)
793 ((unsigned short *)buffer)[i] = odp->u.var.values[i];
794 break;
795 case 4:
796 for (i = 0; i < odp->u.var.n_values; i++)
797 ((unsigned int *)buffer)[i] = odp->u.var.values[i];
798 break;
799 }
800 return odp->u.var.n_values * size;
801 }
802
803
804 /*******************************************************************
805 * DumpBytes
806 *
807 * Dump a byte stream into the assembly code.
808 */
809 static void DumpBytes( FILE *outfile, const unsigned char *data, int len,
810 const char *label )
811 {
812 int i;
813
814 fprintf( outfile, "\nstatic BYTE %s[] = \n{", label );
815
816 for (i = 0; i < len; i++)
817 {
818 if (!(i & 0x0f)) fprintf( outfile, "\n " );
819 fprintf( outfile, "%d", *data++ );
820 if (i < len - 1) fprintf( outfile, ", " );
821 }
822 fprintf( outfile, "\n};\n" );
823 }
824
825
826 /*******************************************************************
827 * BuildModule16
828 *
829 * Build the in-memory representation of a 16-bit NE module, and dump it
830 * as a byte stream into the assembly code.
831 */
832 static int BuildModule16( FILE *outfile, int max_code_offset,
833 int max_data_offset )
834 {
835 int i;
836 char *buffer;
837 NE_MODULE *pModule;
838 SEGTABLEENTRY *pSegment;
839 OFSTRUCT *pFileInfo;
840 BYTE *pstr;
841 WORD *pword;
842 ET_BUNDLE *bundle = 0;
843 ET_ENTRY *entry = 0;
844
845 /* Module layout:
846 * NE_MODULE Module
847 * OFSTRUCT File information
848 * SEGTABLEENTRY Segment 1 (code)
849 * SEGTABLEENTRY Segment 2 (data)
850 * WORD[2] Resource table (empty)
851 * BYTE[2] Imported names (empty)
852 * BYTE[n] Resident names table
853 * BYTE[n] Entry table
854 */
855
856 buffer = xmalloc( 0x10000 );
857
858 pModule = (NE_MODULE *)buffer;
859 memset( pModule, 0, sizeof(*pModule) );
860 pModule->magic = IMAGE_OS2_SIGNATURE;
861 pModule->count = 1;
862 pModule->next = 0;
863 pModule->flags = NE_FFLAGS_SINGLEDATA | NE_FFLAGS_BUILTIN | NE_FFLAGS_LIBMODULE;
864 pModule->dgroup = 2;
865 pModule->heap_size = DLLHeapSize;
866 pModule->stack_size = 0;
867 pModule->ip = 0;
868 pModule->cs = 0;
869 pModule->sp = 0;
870 pModule->ss = 0;
871 pModule->seg_count = 2;
872 pModule->modref_count = 0;
873 pModule->nrname_size = 0;
874 pModule->modref_table = 0;
875 pModule->nrname_fpos = 0;
876 pModule->moveable_entries = 0;
877 pModule->alignment = 0;
878 pModule->truetype = 0;
879 pModule->os_flags = NE_OSFLAGS_WINDOWS;
880 pModule->misc_flags = 0;
881 pModule->dlls_to_init = 0;
882 pModule->nrname_handle = 0;
883 pModule->min_swap_area = 0;
884 pModule->expected_version = 0;
885 pModule->module32 = 0;
886 pModule->self = 0;
887 pModule->self_loading_sel = 0;
888
889 /* File information */
890
891 pFileInfo = (OFSTRUCT *)(pModule + 1);
892 pModule->fileinfo = (int)pFileInfo - (int)pModule;
893 memset( pFileInfo, 0, sizeof(*pFileInfo) - sizeof(pFileInfo->szPathName) );
894 pFileInfo->cBytes = sizeof(*pFileInfo) - sizeof(pFileInfo->szPathName)
895 + strlen(DLLFileName);
896 strcpy( pFileInfo->szPathName, DLLFileName );
897 pstr = (char *)pFileInfo + pFileInfo->cBytes + 1;
898
899 #ifdef __i386__ /* FIXME: Alignment problems! */
900
901 /* Segment table */
902
903 pSegment = (SEGTABLEENTRY *)pstr;
904 pModule->seg_table = (int)pSegment - (int)pModule;
905 pSegment->filepos = 0;
906 pSegment->size = max_code_offset;
907 pSegment->flags = 0;
908 pSegment->minsize = max_code_offset;
909 pSegment->hSeg = 0;
910 pSegment++;
911
912 pModule->dgroup_entry = (int)pSegment - (int)pModule;
913 pSegment->filepos = 0;
914 pSegment->size = max_data_offset;
915 pSegment->flags = NE_SEGFLAGS_DATA;
916 pSegment->minsize = max_data_offset;
917 pSegment->hSeg = 0;
918 pSegment++;
919
920 /* Resource table */
921
922 pword = (WORD *)pSegment;
923 pModule->res_table = (int)pword - (int)pModule;
924 *pword++ = 0;
925 *pword++ = 0;
926
927 /* Imported names table */
928
929 pstr = (char *)pword;
930 pModule->import_table = (int)pstr - (int)pModule;
931 *pstr++ = 0;
932 *pstr++ = 0;
933
934 /* Resident names table */
935
936 pModule->name_table = (int)pstr - (int)pModule;
937 /* First entry is module name */
938 *pstr = strlen(DLLName );
939 strcpy( pstr + 1, DLLName );
940 pstr += *pstr + 1;
941 *(WORD *)pstr = 0;
942 pstr += sizeof(WORD);
943 /* Store all ordinals */
944 for (i = 1; i <= Limit; i++)
945 {
946 ORDDEF *odp = Ordinals[i];
947 if (!odp || !odp->name[0]) continue;
948 *pstr = strlen( odp->name );
949 strcpy( pstr + 1, odp->name );
950 strupper( pstr + 1 );
951 pstr += *pstr + 1;
952 *(WORD *)pstr = i;
953 pstr += sizeof(WORD);
954 }
955 *pstr++ = 0;
956
957 /* Entry table */
958
959 pModule->entry_table = (int)pstr - (int)pModule;
960 for (i = 1; i <= Limit; i++)
961 {
962 int selector = 0;
963 ORDDEF *odp = Ordinals[i];
964 if (!odp) continue;
965
966 switch (odp->type)
967 {
968 case TYPE_CDECL:
969 case TYPE_PASCAL:
970 case TYPE_PASCAL_16:
971 case TYPE_REGISTER:
972 case TYPE_INTERRUPT:
973 case TYPE_STUB:
974 selector = 1; /* Code selector */
975 break;
976
977 case TYPE_BYTE:
978 case TYPE_WORD:
979 case TYPE_LONG:
980 selector = 2; /* Data selector */
981 break;
982
983 case TYPE_ABS:
984 selector = 0xfe; /* Constant selector */
985 break;
986
987 default:
988 selector = 0; /* Invalid selector */
989 break;
990 }
991
992 if ( !selector )
993 continue;
994
995 if ( bundle && bundle->last+1 == i )
996 bundle->last++;
997 else
998 {
999 if ( bundle )
1000 bundle->next = (char *)pstr - (char *)pModule;
1001
1002 bundle = (ET_BUNDLE *)pstr;
1003 bundle->first = i-1;
1004 bundle->last = i;
1005 bundle->next = 0;
1006 pstr += sizeof(ET_BUNDLE);
1007 }
1008
1009 /* FIXME: is this really correct ?? */
1010 entry = (ET_ENTRY *)pstr;
1011 entry->type = 0xff; /* movable */
1012 entry->flags = 3; /* exported & public data */
1013 entry->segnum = selector;
1014 entry->offs = odp->offset;
1015 pstr += sizeof(ET_ENTRY);
1016 }
1017 *pstr++ = 0;
1018 #endif
1019
1020 /* Dump the module content */
1021
1022 DumpBytes( outfile, (char *)pModule, (int)pstr - (int)pModule,
1023 "Module" );
1024 return (int)pstr - (int)pModule;
1025 }
1026
1027
1028 /*******************************************************************
1029 * BuildSpec32File
1030 *
1031 * Build a Win32 C file from a spec file.
1032 */
1033 static int BuildSpec32File( FILE *outfile )
1034 {
1035 ORDDEF *odp;
1036 int i, fwd_size = 0, have_regs = FALSE;
1037 int nr_exports;
1038 const char *init_func;
1039
1040 AssignOrdinals();
1041 nr_exports = Base <= Limit ? Limit - Base + 1 : 0;
1042
1043 fprintf( outfile, "/* File generated automatically from %s; do not edit! */\n\n",
1044 input_file_name );
1045 fprintf( outfile, "#include \"builtin32.h\"\n\n" );
1046 fprintf( outfile, "static const BUILTIN32_DESCRIPTOR descriptor;\n" );
1047
1048 /* Output the DLL functions prototypes */
1049
1050 for (i = 0, odp = EntryPoints; i < nb_entry_points; i++, odp++)
1051 {
1052 switch(odp->type)
1053 {
1054 case TYPE_EXTERN:
1055 fprintf( outfile, "extern void %s();\n", odp->u.ext.link_name );
1056 break;
1057 case TYPE_STDCALL:
1058 case TYPE_VARARGS:
1059 case TYPE_CDECL:
1060 fprintf( outfile, "extern void %s();\n", odp->u.func.link_name );
1061 break;
1062 case TYPE_FORWARD:
1063 fwd_size += strlen(odp->u.fwd.link_name) + 1;
1064 break;
1065 case TYPE_REGISTER:
1066 fprintf( outfile, "extern void __regs_%d();\n", odp->ordinal );
1067 have_regs = TRUE;
1068 break;
1069 case TYPE_STUB:
1070 fprintf( outfile, "static void __stub_%d() { BUILTIN32_Unimplemented(&descriptor,%d); }\n",
1071 odp->ordinal, odp->ordinal );
1072 break;
1073 default:
1074 fprintf(stderr,"build: function type %d not available for Win32\n",
1075 odp->type);
1076 return -1;
1077 }
1078 }
1079
1080 /* Output code for all register functions */
1081
1082 if ( have_regs )
1083 {
1084 fprintf( outfile, "#ifndef __GNUC__\n" );
1085 fprintf( outfile, "static void __asm__dummy(void) {\n" );
1086 fprintf( outfile, "#endif /* !defined(__GNUC__) */\n" );
1087 for (i = 0, odp = EntryPoints; i < nb_entry_points; i++, odp++)
1088 {
1089 if (odp->type != TYPE_REGISTER) continue;
1090 fprintf( outfile,
1091 "asm(\".align 4\\n\\t\"\n"
1092 " \".type " PREFIX "__regs_%d,@function\\n\\t\"\n"
1093 " \"" PREFIX "__regs_%d:\\n\\t\"\n"
1094 " \"call " PREFIX "CALL32_Regs\\n\\t\"\n"
1095 " \".long " PREFIX "%s\\n\\t\"\n"
1096 " \".byte %d,%d\");\n",
1097 odp->ordinal, odp->ordinal, odp->u.func.link_name,
1098 4 * strlen(odp->u.func.arg_types),
1099 4 * strlen(odp->u.func.arg_types) );
1100 }
1101 fprintf( outfile, "#ifndef __GNUC__\n" );
1102 fprintf( outfile, "}\n" );
1103 fprintf( outfile, "#endif /* !defined(__GNUC__) */\n" );
1104 }
1105
1106 if (nb_names)
1107 {
1108 /* Output the DLL names table */
1109
1110 fprintf( outfile, "static const char * const FuncNames[%d] =\n{\n", nb_names );
1111 for (i = 0; i < nb_names; i++)
1112 {
1113 if (i) fprintf( outfile, ",\n" );
1114 fprintf( outfile, " \"%s\"", Names[i]->name );
1115 }
1116 fprintf( outfile, "\n};\n\n" );
1117
1118 /* Output the DLL ordinals table */
1119
1120 fprintf( outfile, "static const unsigned short FuncOrdinals[%d] =\n{\n", nb_names );
1121 for (i = 0; i < nb_names; i++)
1122 {
1123 if (i) fprintf( outfile, ",\n" );
1124 fprintf( outfile, " %d", Names[i]->ordinal - Base );
1125 }
1126 fprintf( outfile, "\n};\n\n" );
1127 }
1128
1129 if (nr_exports)
1130 {
1131 /* Output the DLL functions table */
1132
1133 fprintf( outfile, "\nstatic const ENTRYPOINT32 Functions[%d] =\n{\n",
1134 nr_exports );
1135 for (i = Base; i <= Limit; i++)
1136 {
1137 ORDDEF *odp = Ordinals[i];
1138 if (!odp) fprintf( outfile, " 0" );
1139 else switch(odp->type)
1140 {
1141 case TYPE_EXTERN:
1142 fprintf( outfile, " %s", odp->u.ext.link_name );
1143 break;
1144 case TYPE_STDCALL:
1145 case TYPE_VARARGS:
1146 case TYPE_CDECL:
1147 fprintf( outfile, " %s", odp->u.func.link_name);
1148 break;
1149 case TYPE_STUB:
1150 fprintf( outfile, " __stub_%d", i );
1151 break;
1152 case TYPE_REGISTER:
1153 fprintf( outfile, " __regs_%d", i );
1154 break;
1155 case TYPE_FORWARD:
1156 fprintf( outfile, " (ENTRYPOINT32)\"%s\"", odp->u.fwd.link_name );
1157 break;
1158 default:
1159 return -1;
1160 }
1161 if (i < Limit) fprintf( outfile, ",\n" );
1162 }
1163 fprintf( outfile, "\n};\n\n" );
1164
1165 /* Output the DLL argument types */
1166
1167 fprintf( outfile, "static const unsigned int ArgTypes[%d] =\n{\n",
1168 nr_exports );
1169 for (i = Base; i <= Limit; i++)
1170 {
1171 ORDDEF *odp = Ordinals[i];
1172 unsigned int j, mask = 0;
1173 if (odp &&
1174 ((odp->type == TYPE_STDCALL) || (odp->type == TYPE_CDECL) ||
1175 (odp->type == TYPE_REGISTER)))
1176 for (j = 0; odp->u.func.arg_types[j]; j++)
1177 {
1178 if (odp->u.func.arg_types[j] == 't') mask |= 1<< (j*2);
1179 if (odp->u.func.arg_types[j] == 'W') mask |= 2<< (j*2);
1180 }
1181 fprintf( outfile, " %d", mask );
1182 if (i < Limit) fprintf( outfile, ",\n" );
1183 }
1184 fprintf( outfile, "\n};\n\n" );
1185
1186 /* Output the DLL functions arguments */
1187
1188 fprintf( outfile, "static const unsigned char FuncArgs[%d] =\n{\n",
1189 nr_exports );
1190 for (i = Base; i <= Limit; i++)
1191 {
1192 unsigned char args = 0xff;
1193 ORDDEF *odp = Ordinals[i];
1194 if (odp) switch(odp->type)
1195 {
1196 case TYPE_STDCALL:
1197 args = (unsigned char)strlen(odp->u.func.arg_types);
1198 break;
1199 case TYPE_CDECL:
1200 args = 0x80 | (unsigned char)strlen(odp->u.func.arg_types);
1201 break;
1202 case TYPE_REGISTER:
1203 args = 0x40 | (unsigned char)strlen(odp->u.func.arg_types);
1204 break;
1205 case TYPE_FORWARD:
1206 args = 0xfd;
1207 break;
1208 default:
1209 args = 0xff;
1210 break;
1211 }
1212 fprintf( outfile, " 0x%02x", args );
1213 if (i < Limit) fprintf( outfile, ",\n" );
1214 }
1215 fprintf( outfile, "\n};\n\n" );
1216 }
1217
1218 /* Output the DLL imports */
1219
1220 if (nb_imports)
1221 {
1222 fprintf( outfile, "static const char * const Imports[%d] =\n{\n", nb_imports );
1223 for (i = 0; i < nb_imports; i++)
1224 {
1225 fprintf( outfile, " \"%s\"", DLLImports[i] );
1226 if (i < nb_imports-1) fprintf( outfile, ",\n" );
1227 }
1228 fprintf( outfile, "\n};\n\n" );
1229 }
1230
1231 /* Output LibMain function */
1232
1233 init_func = DLLInitFunc[0] ? DLLInitFunc : NULL;
1234 switch(SpecMode)
1235 {
1236 case SPEC_MODE_DLL:
1237 if (init_func) fprintf( outfile, "extern void %s();\n", init_func );
1238 break;
1239 case SPEC_MODE_GUIEXE:
1240 if (!init_func) init_func = "WinMain";
1241 fprintf( outfile,
1242 "\n#include <winbase.h>\n"
1243 "static void exe_main(void)\n"
1244 "{\n"
1245 " extern int PASCAL %s(HINSTANCE,HINSTANCE,LPCSTR,INT);\n"
1246 " STARTUPINFOA info;\n"
1247 " const char *cmdline = GetCommandLineA();\n"
1248 " while (*cmdline && *cmdline != ' ') cmdline++;\n"
1249 " if (*cmdline) cmdline++;\n"
1250 " GetStartupInfoA( &info );\n"
1251 " if (!(info.dwFlags & STARTF_USESHOWWINDOW)) info.wShowWindow = 1;\n"
1252 " ExitProcess( %s( GetModuleHandleA(0), 0, cmdline, info.wShowWindow ) );\n"
1253 "}\n\n", init_func, init_func );
1254 fprintf( outfile,
1255 "int main( int argc, char *argv[] )\n"
1256 "{\n"
1257 " extern void PROCESS_InitWinelib( int, char ** );\n"
1258 " PROCESS_InitWinelib( argc, argv );\n"
1259 " return 1;\n"
1260 "}\n\n" );
1261 init_func = "exe_main";
1262 break;
1263 case SPEC_MODE_CUIEXE:
1264 if (!init_func) init_func = "wine_main";
1265 fprintf( outfile,
1266 "\n#include <winbase.h>\n"
1267 "static void exe_main(void)\n"
1268 "{\n"
1269 " extern int %s( int argc, char *argv[] );\n"
1270 " extern int _ARGC;\n"
1271 " extern char *_ARGV[];\n"
1272 " ExitProcess( %s( _ARGC, _ARGV ) );\n"
1273 "}\n\n", init_func, init_func );
1274 fprintf( outfile,
1275 "int main( int argc, char *argv[] )\n"
1276 "{\n"
1277 " extern void PROCESS_InitWinelib( int, char ** );\n"
1278 " PROCESS_InitWinelib( argc, argv );\n"
1279 " return 1;\n"
1280 "}\n\n" );
1281 init_func = "exe_main";
1282 break;
1283 }
1284
1285 /* Output the DLL descriptor */
1286
1287 if (rsrc_name[0]) fprintf( outfile, "extern const char %s[];\n\n", rsrc_name );
1288
1289 fprintf( outfile, "static const BUILTIN32_DESCRIPTOR descriptor =\n{\n" );
1290 fprintf( outfile, " \"%s\",\n", DLLName );
1291 fprintf( outfile, " \"%s\",\n", DLLFileName );
1292 fprintf( outfile, " %d,\n", nr_exports? Base : 0 );
1293 fprintf( outfile, " %d,\n", nr_exports );
1294 fprintf( outfile, " %d,\n", nb_names );
1295 fprintf( outfile, " %d,\n", nb_imports );
1296 fprintf( outfile, " %d,\n", (fwd_size + 3) & ~3 );
1297 fprintf( outfile, " %s,\n", nr_exports ? "Functions" : "0" );
1298 fprintf( outfile, " %s,\n", nb_names ? "FuncNames" : "0" );
1299 fprintf( outfile, " %s,\n", nb_names ? "FuncOrdinals" : "0" );
1300 fprintf( outfile, " %s,\n", nr_exports ? "FuncArgs" : "0" );
1301 fprintf( outfile, " %s,\n", nr_exports ? "ArgTypes" : "0" );
1302 fprintf( outfile, " %s,\n", nb_imports ? "Imports" : "0" );
1303 fprintf( outfile, " %s,\n", init_func ? init_func : "0" );
1304 fprintf( outfile, " %d,\n", SpecMode == SPEC_MODE_DLL ? IMAGE_FILE_DLL : 0 );
1305 fprintf( outfile, " %s\n", rsrc_name[0] ? rsrc_name : "0" );
1306 fprintf( outfile, "};\n" );
1307
1308 /* Output the DLL constructor */
1309
1310 fprintf( outfile, "#ifdef __GNUC__\n" );
1311 fprintf( outfile, "static void %s_init(void) __attribute__((constructor));\n", DLLName );
1312 fprintf( outfile, "#else /* defined(__GNUC__) */\n" );
1313 fprintf( outfile, "static void __asm__dummy_dll_init(void) {\n" );
1314 fprintf( outfile, "asm(\"\\t.section\t.init ,\\\"ax\\\"\\n\"\n" );
1315 fprintf( outfile, " \"\\tcall %s_init\\n\"\n", DLLName );
1316 fprintf( outfile, " \"\\t.previous\\n\");\n" );
1317 fprintf( outfile, "}\n" );
1318 fprintf( outfile, "#endif /* defined(__GNUC__) */\n" );
1319 fprintf( outfile, "static void %s_init(void) { BUILTIN32_RegisterDLL( &descriptor ); }\n",
1320 DLLName );
1321
1322 return 0;
1323 }
1324
1325 /*******************************************************************
1326 * Spec16TypeCompare
1327 */
1328 static int Spec16TypeCompare( const void *e1, const void *e2 )
1329 {
1330 const ORDDEF *odp1 = *(const ORDDEF **)e1;
1331 const ORDDEF *odp2 = *(const ORDDEF **)e2;
1332
1333 int type1 = (odp1->type == TYPE_CDECL) ? 0
1334 : (odp1->type == TYPE_REGISTER) ? 3
1335 : (odp1->type == TYPE_INTERRUPT) ? 4
1336 : (odp1->type == TYPE_PASCAL_16) ? 1 : 2;
1337
1338 int type2 = (odp2->type == TYPE_CDECL) ? 0
1339 : (odp2->type == TYPE_REGISTER) ? 3
1340 : (odp2->type == TYPE_INTERRUPT) ? 4
1341 : (odp2->type == TYPE_PASCAL_16) ? 1 : 2;
1342
1343 int retval = type1 - type2;
1344 if ( !retval )
1345 retval = strcmp( odp1->u.func.arg_types, odp2->u.func.arg_types );
1346
1347 return retval;
1348 }
1349
1350 /*******************************************************************
1351 * BuildSpec16File
1352 *
1353 * Build a Win16 assembly file from a spec file.
1354 */
1355 static int BuildSpec16File( FILE *outfile )
1356 {
1357 ORDDEF **type, **typelist;
1358 int i, nFuncs, nTypes;
1359 int code_offset, data_offset, module_size;
1360 unsigned char *data;
1361
1362 /* File header */
1363
1364 fprintf( outfile, "/* File generated automatically from %s; do not edit! */\n\n",
1365 input_file_name );
1366 fprintf( outfile, "#define __FLATCS__ 0x%04x\n", Code_Selector );
1367 fprintf( outfile, "#include \"builtin16.h\"\n\n" );
1368
1369 data = (unsigned char *)xmalloc( 0x10000 );
1370 memset( data, 0, 16 );
1371 data_offset = 16;
1372
1373
1374 /* Build sorted list of all argument types, without duplicates */
1375
1376 typelist = (ORDDEF **)calloc( Limit+1, sizeof(ORDDEF *) );
1377
1378 for (i = nFuncs = 0; i <= Limit; i++)
1379 {
1380 ORDDEF *odp = Ordinals[i];
1381 if (!odp) continue;
1382 switch (odp->type)
1383 {
1384 case TYPE_REGISTER:
1385 case TYPE_INTERRUPT:
1386 case TYPE_CDECL:
1387 case TYPE_PASCAL:
1388 case TYPE_PASCAL_16:
1389 case TYPE_STUB:
1390 typelist[nFuncs++] = odp;
1391
1392 default:
1393 break;
1394 }
1395 }
1396
1397 qsort( typelist, nFuncs, sizeof(ORDDEF *), Spec16TypeCompare );
1398
1399 i = nTypes = 0;
1400 while ( i < nFuncs )
1401 {
1402 typelist[nTypes++] = typelist[i++];
1403 while ( i < nFuncs && Spec16TypeCompare( typelist + i, typelist + nTypes-1 ) == 0 )
1404 i++;
1405 }
1406
1407 /* Output CallFrom16 routines needed by this .spec file */
1408
1409 for ( i = 0; i < nTypes; i++ )
1410 {
1411 char profile[101];
1412
1413 sprintf( profile, "%s_%s_%s",
1414 (typelist[i]->type == TYPE_CDECL) ? "c" : "p",
1415 (typelist[i]->type == TYPE_REGISTER) ? "regs" :
1416 (typelist[i]->type == TYPE_INTERRUPT) ? "intr" :
1417 (typelist[i]->type == TYPE_PASCAL_16) ? "word" : "long",
1418 typelist[i]->u.func.arg_types );
1419
1420 BuildCallFrom16Func( outfile, profile, DLLName, TRUE );
1421 }
1422
1423 /* Output the DLL functions prototypes */
1424
1425 for (i = 0; i <= Limit; i++)
1426 {
1427 ORDDEF *odp = Ordinals[i];
1428 if (!odp) continue;
1429 switch(odp->type)
1430 {
1431 case TYPE_REGISTER:
1432 case TYPE_INTERRUPT:
1433 case TYPE_CDECL:
1434 case TYPE_PASCAL:
1435 case TYPE_PASCAL_16:
1436 fprintf( outfile, "extern void %s();\n", odp->u.func.link_name );
1437 break;
1438 default:
1439 break;
1440 }
1441 }
1442
1443 /* Output code segment */
1444
1445 fprintf( outfile, "\nstatic struct\n{\n CALLFROM16 call[%d];\n"
1446 " ENTRYPOINT16 entry[%d];\n} Code_Segment = \n{\n {\n",
1447 nTypes, nFuncs );
1448 code_offset = 0;
1449
1450 for ( i = 0; i < nTypes; i++ )
1451 {
1452 char profile[101], *arg;
1453 int argsize = 0;
1454
1455 sprintf( profile, "%s_%s_%s",
1456 (typelist[i]->type == TYPE_CDECL) ? "c" : "p",
1457 (typelist[i]->type == TYPE_REGISTER) ? "regs" :
1458 (typelist[i]->type == TYPE_INTERRUPT) ? "intr" :
1459 (typelist[i]->type == TYPE_PASCAL_16) ? "word" : "long",
1460 typelist[i]->u.func.arg_types );
1461
1462 if ( typelist[i]->type != TYPE_CDECL )
1463 for ( arg = typelist[i]->u.func.arg_types; *arg; arg++ )
1464 switch ( *arg )
1465 {
1466 case 'w': /* word */
1467 case 's': /* s_word */
1468 argsize += 2;
1469 break;
1470
1471 case 'l': /* long or segmented pointer */
1472 case 'T': /* segmented pointer to null-terminated string */
1473 case 'p': /* linear pointer */
1474 case 't': /* linear pointer to null-terminated string */
1475 argsize += 4;
1476 break;
1477 }
1478
1479 if ( typelist[i]->type == TYPE_INTERRUPT )
1480 argsize += 2;
1481
1482 fprintf( outfile, " CF16_%s( %s_CallFrom16_%s, %d, \"%s\" ),\n",
1483 ( typelist[i]->type == TYPE_REGISTER
1484 || typelist[i]->type == TYPE_INTERRUPT)? "REGS":
1485 typelist[i]->type == TYPE_PASCAL_16? "WORD" : "LONG",
1486 DLLName, profile, argsize, profile );
1487
1488 code_offset += sizeof(CALLFROM16);
1489 }
1490 fprintf( outfile, " },\n {\n" );
1491
1492 for (i = 0; i <= Limit; i++)
1493 {
1494 ORDDEF *odp = Ordinals[i];
1495 if (!odp) continue;
1496 switch (odp->type)
1497 {
1498 case TYPE_ABS:
1499 odp->offset = LOWORD(odp->u.abs.value);
1500 break;
1501
1502 case TYPE_BYTE:
1503 odp->offset = data_offset;
1504 data_offset += StoreVariableCode( data + data_offset, 1, odp);
1505 break;
1506
1507 case TYPE_WORD:
1508 odp->offset = data_offset;
1509 data_offset += StoreVariableCode( data + data_offset, 2, odp);
1510 break;
1511
1512 case TYPE_LONG:
1513 odp->offset = data_offset;
1514 data_offset += StoreVariableCode( data + data_offset, 4, odp);
1515 break;
1516
1517 case TYPE_REGISTER:
1518 case TYPE_INTERRUPT:
1519 case TYPE_CDECL:
1520 case TYPE_PASCAL:
1521 case TYPE_PASCAL_16:
1522 case TYPE_STUB:
1523 type = bsearch( &odp, typelist, nTypes, sizeof(ORDDEF *), Spec16TypeCompare );
1524 assert( type );
1525
1526 fprintf( outfile, " /* %s.%d */ ", DLLName, i );
1527 fprintf( outfile, "EP( %s, %d /* %s_%s_%s */ ),\n",
1528 odp->u.func.link_name,
1529 (type-typelist)*sizeof(CALLFROM16) -
1530 (code_offset + sizeof(ENTRYPOINT16)),
1531 (odp->type == TYPE_CDECL) ? "c" : "p",
1532 (odp->type == TYPE_REGISTER) ? "regs" :
1533 (odp->type == TYPE_INTERRUPT) ? "intr" :
1534 (odp->type == TYPE_PASCAL_16) ? "word" : "long",
1535 odp->u.func.arg_types );
1536
1537 odp->offset = code_offset;
1538 code_offset += sizeof(ENTRYPOINT16);
1539 break;
1540
1541 default:
1542 fprintf(stderr,"build: function type %d not available for Win16\n",
1543 odp->type);
1544 return -1;
1545 }
1546 }
1547
1548 fprintf( outfile, " }\n};\n" );
1549
1550 /* Output data segment */
1551
1552 DumpBytes( outfile, data, data_offset, "Data_Segment" );
1553
1554 /* Build the module */
1555
1556 module_size = BuildModule16( outfile, code_offset, data_offset );
1557
1558 /* Output the DLL descriptor */
1559
1560 if (rsrc_name[0]) fprintf( outfile, "extern const char %s[];\n\n", rsrc_name );
1561
1562 fprintf( outfile, "\nstatic const BUILTIN16_DESCRIPTOR descriptor = \n{\n" );
1563 fprintf( outfile, " \"%s\",\n", DLLName );
1564 fprintf( outfile, " Module,\n" );
1565 fprintf( outfile, " sizeof(Module),\n" );
1566 fprintf( outfile, " (BYTE *)&Code_Segment,\n" );
1567 fprintf( outfile, " (BYTE *)Data_Segment,\n" );
1568 fprintf( outfile, " %s\n", rsrc_name[0] ? rsrc_name : "0" );
1569 fprintf( outfile, "};\n" );
1570
1571 /* Output the DLL constructor */
1572
1573 fprintf( outfile, "#ifdef __GNUC__\n" );
1574 fprintf( outfile, "static void %s_init(void) __attribute__((constructor));\n", DLLName );
1575 fprintf( outfile, "#else /* defined(__GNUC__) */\n" );
1576 fprintf( outfile, "static void __asm__dummy_dll_init(void) {\n" );
1577 fprintf( outfile, "asm(\"\\t.section\t.init ,\\\"ax\\\"\\n\"\n" );
1578 fprintf( outfile, " \"\\tcall %s_init\\n\"\n", DLLName );
1579 fprintf( outfile, " \"\\t.previous\\n\");\n" );
1580 fprintf( outfile, "}\n" );
1581 fprintf( outfile, "#endif /* defined(__GNUC__) */\n" );
1582 fprintf( outfile, "static void %s_init(void) { BUILTIN_RegisterDLL( &descriptor ); }\n",
1583 DLLName );
1584
1585 return 0;
1586 }
1587
1588
1589 /*******************************************************************
1590 * BuildSpecFile
1591 *
1592 * Build an assembly file from a spec file.
1593 */
1594 static void BuildSpecFile( FILE *outfile, FILE *infile )
1595 {
1596 SpecFp = infile;
1597 ParseTopLevel();
1598
1599 switch(SpecType)
1600 {
1601 case SPEC_WIN16:
1602 BuildSpec16File( outfile );
1603 break;
1604 case SPEC_WIN32:
1605 BuildSpec32File( outfile );
1606 break;
1607 default:
1608 fatal_error( "Missing 'type' declaration\n" );
1609 }
1610 }
1611
1612
1613 /*******************************************************************
1614 * BuildCallFrom16Func
1615 *
1616 * Build a 16-bit-to-Wine callback glue function.
1617 *
1618 * The generated routines are intended to be used as argument conversion
1619 * routines to be called by the CallFrom16... core. Thus, the prototypes of
1620 * the generated routines are (see also CallFrom16):
1621 *
1622 * extern WORD WINAPI PREFIX_CallFrom16_C_word_xxx( FARPROC func, LPBYTE args );
1623 * extern LONG WINAPI PREFIX_CallFrom16_C_long_xxx( FARPROC func, LPBYTE args );
1624 * extern void WINAPI PREFIX_CallFrom16_C_regs_xxx( FARPROC func, LPBYTE args,
1625 * CONTEXT86 *context );
1626 * extern void WINAPI PREFIX_CallFrom16_C_intr_xxx( FARPROC func, LPBYTE args,
1627 * CONTEXT86 *context );
1628 *
1629 * where 'C' is the calling convention ('p' for pascal or 'c' for cdecl),
1630 * and each 'x' is an argument ('w'=word, 's'=signed word, 'l'=long,
1631 * 'p'=linear pointer, 't'=linear pointer to null-terminated string,
1632 * 'T'=segmented pointer to null-terminated string).
1633 *
1634 * The generated routines fetch the arguments from the 16-bit stack (pointed
1635 * to by 'args'); the offsets of the single argument values are computed
1636 * according to the calling convention and the argument types. Then, the
1637 * 32-bit entry point is called with these arguments.
1638 *
1639 * For register functions, the arguments (if present) are converted just
1640 * the same as for normal functions, but in addition the CONTEXT86 pointer
1641 * filled with the current register values is passed to the 32-bit routine.
1642 * (An 'intr' interrupt handler routine is treated exactly like a register
1643 * routine, except that upon return, the flags word pushed onto the stack
1644 * by the interrupt is removed by the 16-bit call stub.)
1645 *
1646 */
1647 static void BuildCallFrom16Func( FILE *outfile, char *profile, char *prefix, int local )
1648 {
1649 int i, pos, argsize = 0;
1650 int short_ret = 0;
1651 int reg_func = 0;
1652 int usecdecl = 0;
1653 char *args = profile + 7;
1654 char *ret_type;
1655
1656 /* Parse function type */
1657
1658 if (!strncmp( "c_", profile, 2 )) usecdecl = 1;
1659 else if (strncmp( "p_", profile, 2 ))
1660 {
1661 fprintf( stderr, "Invalid function name '%s', ignored\n", profile );
1662 return;
1663 }
1664
1665 if (!strncmp( "word_", profile + 2, 5 )) short_ret = 1;
1666 else if (!strncmp( "regs_", profile + 2, 5 )) reg_func = 1;
1667 else if (!strncmp( "intr_", profile + 2, 5 )) reg_func = 2;
1668 else if (strncmp( "long_", profile + 2, 5 ))
1669 {
1670 fprintf( stderr, "Invalid function name '%s', ignored\n", profile );
1671 return;
1672 }
1673
1674 for ( i = 0; args[i]; i++ )
1675 switch ( args[i] )
1676 {
1677 case 'w': /* word */
1678 case 's': /* s_word */
1679 argsize += 2;
1680 break;
1681
1682 case 'l': /* long or segmented pointer */
1683 case 'T': /* segmented pointer to null-terminated string */
1684 case 'p': /* linear pointer */
1685 case 't': /* linear pointer to null-terminated string */
1686 argsize += 4;
1687 break;
1688 }
1689
1690 ret_type = reg_func? "void" : short_ret? "WORD" : "LONG";
1691
1692 fprintf( outfile, "typedef %s WINAPI (*proc_%s_t)( ",
1693 ret_type, profile );
1694 args = profile + 7;
1695 for ( i = 0; args[i]; i++ )
1696 {
1697 if ( i ) fprintf( outfile, ", " );
1698 switch (args[i])
1699 {
1700 case 'w': fprintf( outfile, "WORD" ); break;
1701 case 's': fprintf( outfile, "INT16" ); break;
1702 case 'l': case 'T': fprintf( outfile, "LONG" ); break;
1703 case 'p': case 't': fprintf( outfile, "LPVOID" ); break;
1704 }
1705 }
1706 if ( reg_func )
1707 fprintf( outfile, "%sstruct _CONTEXT86 *", i? ", " : "" );
1708 else if ( !i )
1709 fprintf( outfile, "void" );
1710 fprintf( outfile, " );\n" );
1711
1712 fprintf( outfile, "%s%s WINAPI %s_CallFrom16_%s( FARPROC proc, LPBYTE args%s )\n{\n",
1713 local? "static " : "", ret_type, prefix, profile,
1714 reg_func? ", struct _CONTEXT86 *context" : "" );
1715
1716 fprintf( outfile, " %s((proc_%s_t) proc) (\n",
1717 reg_func? "" : "return ", profile );
1718 args = profile + 7;
1719 pos = !usecdecl? argsize : 0;
1720 for ( i = 0; args[i]; i++ )
1721 {
1722 if ( i ) fprintf( outfile, ",\n" );
1723 fprintf( outfile, " " );
1724 switch (args[i])
1725 {
1726 case 'w': /* word */
1727 if ( !usecdecl ) pos -= 2;
1728 fprintf( outfile, "*(WORD *)(args+%d)", pos );
1729 if ( usecdecl ) pos += 2;
1730 break;
1731
1732 case 's': /* s_word */
1733 if ( !usecdecl ) pos -= 2;
1734 fprintf( outfile, "*(INT16 *)(args+%d)", pos );
1735 if ( usecdecl ) pos += 2;
1736 break;
1737
1738 case 'l': /* long or segmented pointer */
1739 case 'T': /* segmented pointer to null-terminated string */
1740 if ( !usecdecl ) pos -= 4;
1741 fprintf( outfile, "*(LONG *)(args+%d)", pos );
1742 if ( usecdecl ) pos += 4;
1743 break;
1744
1745 case 'p': /* linear pointer */
1746 case 't': /* linear pointer to null-terminated string */
1747 if ( !usecdecl ) pos -= 4;
1748 fprintf( outfile, "PTR_SEG_TO_LIN( *(SEGPTR *)(args+%d) )", pos );
1749 if ( usecdecl ) pos += 4;
1750 break;
1751
1752 default:
1753 fprintf( stderr, "Unknown arg type '%c'\n", args[i] );
1754 }
1755 }
1756 if ( reg_func )
1757 fprintf( outfile, "%s context", i? ",\n" : "" );
1758 fprintf( outfile, " );\n}\n\n" );
1759 }
1760
1761 /*******************************************************************
1762 * BuildCallTo16Func
1763 *
1764 * Build a Wine-to-16-bit callback glue function.
1765 *
1766 * Prototypes for the CallTo16 functions:
1767 * extern WORD CALLBACK PREFIX_CallTo16_word_xxx( FARPROC16 func, args... );
1768 * extern LONG CALLBACK PREFIX_CallTo16_long_xxx( FARPROC16 func, args... );
1769 *
1770 * These routines are provided solely for convenience; they simply
1771 * write the arguments onto the 16-bit stack, and call the appropriate
1772 * CallTo16... core routine.
1773 *
1774 * If you have more sophisticated argument conversion requirements than
1775 * are provided by these routines, you might as well call the core
1776 * routines by yourself.
1777 *
1778 */
1779 static void BuildCallTo16Func( FILE *outfile, char *profile, char *prefix )
1780 {
1781 char *args = profile + 5;
1782 int i, argsize = 0, short_ret = 0;
1783
1784 if (!strncmp( "word_", profile, 5 )) short_ret = 1;
1785 else if (strncmp( "long_", profile, 5 ))
1786 {
1787 fprintf( stderr, "Invalid function name '%s'.\n", profile );
1788 exit(1);
1789 }
1790
1791 fprintf( outfile, "%s %s_CallTo16_%s( FARPROC16 proc",
1792 short_ret? "WORD" : "LONG", prefix, profile );
1793 args = profile + 5;
1794 for ( i = 0; args[i]; i++ )
1795 {
1796 fprintf( outfile, ", " );
1797 switch (args[i])
1798 {
1799 case 'w': fprintf( outfile, "WORD" ); argsize += 2; break;
1800 case 'l': fprintf( outfile, "LONG" ); argsize += 4; break;
1801 }
1802 fprintf( outfile, " arg%d", i+1 );
1803 }
1804 fprintf( outfile, " )\n{\n" );
1805
1806 if ( argsize > 0 )
1807 fprintf( outfile, " LPBYTE args = (LPBYTE)CURRENT_STACK16;\n" );
1808
1809 args = profile + 5;
1810 for ( i = 0; args[i]; i++ )
1811 {
1812 switch (args[i])
1813 {
1814 case 'w': fprintf( outfile, " args -= sizeof(WORD); *(WORD" ); break;
1815 case 'l': fprintf( outfile, " args -= sizeof(LONG); *(LONG" ); break;
1816 default: fprintf( stderr, "Unexpected case '%c' in BuildCallTo16Func\n",
1817 args[i] );
1818 }
1819 fprintf( outfile, " *)args = arg%d;\n", i+1 );
1820 }
1821
1822 fprintf( outfile, " return CallTo16%s( proc, %d );\n}\n\n",
1823 short_ret? "Word" : "Long", argsize );
1824 }
1825
1826
1827
1828 /*******************************************************************
1829 * BuildCallFrom16Core
1830 *
1831 * This routine builds the core routines used in 16->32 thunks:
1832 * CallFrom16Word, CallFrom16Long, CallFrom16Register, and CallFrom16Thunk.
1833 *
1834 * These routines are intended to be called via a far call (with 32-bit
1835 * operand size) from 16-bit code. The 16-bit code stub must push %bp,
1836 * the 32-bit entry point to be called, and the argument conversion
1837 * routine to be used (see stack layout below).
1838 *
1839 * The core routine completes the STACK16FRAME on the 16-bit stack and
1840 * switches to the 32-bit stack. Then, the argument conversion routine
1841 * is called; it gets passed the 32-bit entry point and a pointer to the
1842 * 16-bit arguments (on the 16-bit stack) as parameters. (You can either
1843 * use conversion routines automatically generated by BuildCallFrom16,
1844 * or write your own for special purposes.)
1845 *
1846 * The conversion routine must call the 32-bit entry point, passing it
1847 * the converted arguments, and return its return value to the core.
1848 * After the conversion routine has returned, the core switches back
1849 * to the 16-bit stack, converts the return value to the DX:AX format
1850 * (CallFrom16Long), and returns to the 16-bit call stub. All parameters,
1851 * including %bp, are popped off the stack.
1852 *
1853 * The 16-bit call stub now returns to the caller, popping the 16-bit
1854 * arguments if necessary (pascal calling convention).
1855 *
1856 * In the case of a 'register' function, CallFrom16Register fills a
1857 * CONTEXT86 structure with the values all registers had at the point
1858 * the first instruction of the 16-bit call stub was about to be
1859 * executed. A pointer to this CONTEXT86 is passed as third parameter
1860 * to the argument conversion routine, which typically passes it on
1861 * to the called 32-bit entry point.
1862 *
1863 * CallFrom16Thunk is a special variant used by the implementation of
1864 * the Win95 16->32 thunk functions C16ThkSL and C16ThkSL01 and is
1865 * implemented as follows:
1866 * On entry, the EBX register is set up to contain a flat pointer to the
1867 * 16-bit stack such that EBX+22 points to the first argument.
1868 * Then, the entry point is called, while EBP is set up to point
1869 * to the return address (on the 32-bit stack).
1870 * The called function returns with CX set to the number of bytes
1871 * to be popped of the caller's stack.
1872 *
1873 * Stack layout upon entry to the core routine (STACK16FRAME):
1874 * ... ...
1875 * (sp+24) word first 16-bit arg
1876 * (sp+22) word cs
1877 * (sp+20) word ip
1878 * (sp+18) word bp
1879 * (sp+14) long 32-bit entry point (reused for Win16 mutex recursion count)
1880 * (sp+12) word ip of actual entry point (necessary for relay debugging)
1881 * (sp+8) long relay (argument conversion) function entry point
1882 * (sp+4) long cs of 16-bit entry point
1883 * (sp) long ip of 16-bit entry point
1884 *
1885 * Added on the stack:
1886 * (sp-2) word saved gs
1887 * (sp-4) word saved fs
1888 * (sp-6) word saved es
1889 * (sp-8) word saved ds
1890 * (sp-12) long saved ebp
1891 * (sp-16) long saved ecx
1892 * (sp-20) long saved edx
1893 * (sp-24) long saved previous stack
1894 */
1895 static void BuildCallFrom16Core( FILE *outfile, int reg_func, int thunk, int short_ret )
1896 {
1897 char *name = thunk? "Thunk" : reg_func? "Register" : short_ret? "Word" : "Long";
1898
1899 /* Function header */
1900 fprintf( outfile, "\n\t.align 4\n" );
1901 #ifdef USE_STABS
1902 fprintf( outfile, ".stabs \"CallFrom16%s:F1\",36,0,0," PREFIX "CallFrom16%s\n",
1903 name, name);
1904 #endif
1905 fprintf( outfile, "\t.type " PREFIX "CallFrom16%s,@function\n", name );
1906 fprintf( outfile, "\t.globl " PREFIX "CallFrom16%s\n", name );
1907 fprintf( outfile, PREFIX "CallFrom16%s:\n", name );
1908
1909 /* Create STACK16FRAME (except STACK32FRAME link) */
1910 fprintf( outfile, "\tpushw %%gs\n" );
1911 fprintf( outfile, "\tpushw %%fs\n" );
1912 fprintf( outfile, "\tpushw %%es\n" );
1913 fprintf( outfile, "\tpushw %%ds\n" );
1914 fprintf( outfile, "\tpushl %%ebp\n" );
1915 fprintf( outfile, "\tpushl %%ecx\n" );
1916 fprintf( outfile, "\tpushl %%edx\n" );
1917
1918 /* Save original EFlags register */
1919 fprintf( outfile, "\tpushfl\n" );
1920
1921 if ( UsePIC )
1922 {
1923 /* Get Global Offset Table into %ecx */
1924 fprintf( outfile, "\tcall .LCallFrom16%s.getgot1\n", name );
1925 fprintf( outfile, ".LCallFrom16%s.getgot1:\n", name );
1926 fprintf( outfile, "\tpopl %%ecx\n" );
1927 fprintf( outfile, "\taddl $_GLOBAL_OFFSET_TABLE_+[.-.LCallFrom16%s.getgot1], %%ecx\n", name );
1928 }
1929
1930 /* Load 32-bit segment registers */
1931 fprintf( outfile, "\tmovw $0x%04x, %%dx\n", Data_Selector );
1932 #ifdef __svr4__
1933 fprintf( outfile, "\tdata16\n");
1934 #endif
1935 fprintf( outfile, "\tmovw %%dx, %%ds\n" );
1936 #ifdef __svr4__
1937 fprintf( outfile, "\tdata16\n");
1938 #endif
1939 fprintf( outfile, "\tmovw %%dx, %%es\n" );
1940
1941 if ( UsePIC )
1942 {
1943 fprintf( outfile, "\tmovl " PREFIX "SYSLEVEL_Win16CurrentTeb@GOT(%%ecx), %%edx\n" );
1944 fprintf( outfile, "\tmovw (%%edx), %%fs\n" );
1945 }
1946 else
1947 fprintf( outfile, "\tmovw " PREFIX "SYSLEVEL_Win16CurrentTeb, %%fs\n" );
1948
1949 /* Get address of ldt_copy array into %ecx */
1950 if ( UsePIC )
1951 fprintf( outfile, "\tmovl " PREFIX "ldt_copy@GOT(%%ecx), %%ecx\n" );
1952 else
1953 fprintf( outfile, "\tmovl $" PREFIX "ldt_copy, %%ecx\n" );
1954
1955 /* Translate STACK16FRAME base to flat offset in %edx */
1956 fprintf( outfile, "\tmovw %%ss, %%dx\n" );
1957 fprintf( outfile, "\tandl $0xfff8, %%edx\n" );
1958 fprintf( outfile, "\tmovl (%%ecx,%%edx), %%edx\n" );
1959 fprintf( outfile, "\tmovzwl %%sp, %%ebp\n" );
1960 fprintf( outfile, "\tleal (%%ebp,%%edx), %%edx\n" );
1961
1962 /* Get saved flags into %ecx */
1963 fprintf( outfile, "\tpopl %%ecx\n" );
1964
1965 /* Get the 32-bit stack pointer from the TEB and complete STACK16FRAME */
1966 fprintf( outfile, "\t.byte 0x64\n\tmovl (%d), %%ebp\n", STACKOFFSET );
1967 fprintf( outfile, "\tpushl %%ebp\n" );
1968
1969 /* Switch stacks */
1970 #ifdef __svr4__
1971 fprintf( outfile,"\tdata16\n");
1972 #endif
1973 fprintf( outfile, "\t.byte 0x64\n\tmovw %%ss, (%d)\n", STACKOFFSET + 2 );
1974 fprintf( outfile, "\t.byte 0x64\n\tmovw %%sp, (%d)\n", STACKOFFSET );
1975 fprintf( outfile, "\tpushl %%ds\n" );
1976 fprintf( outfile, "\tpopl %%ss\n" );
1977 fprintf( outfile, "\tmovl %%ebp, %%esp\n" );
1978 fprintf( outfile, "\taddl $%d, %%ebp\n", STRUCTOFFSET(STACK32FRAME, ebp) );
1979
1980
1981 /* At this point:
1982 STACK16FRAME is completely set up
1983 DS, ES, SS: flat data segment
1984 FS: current TEB
1985 ESP: points to last STACK32FRAME
1986 EBP: points to ebp member of last STACK32FRAME
1987 EDX: points to current STACK16FRAME
1988 ECX: contains saved flags
1989 all other registers: unchanged */
1990
1991 /* Special case: C16ThkSL stub */
1992 if ( thunk )
1993 {
1994 /* Set up registers as expected and call thunk */
1995 fprintf( outfile, "\tleal %d(%%edx), %%ebx\n", sizeof(STACK16FRAME)-22 );
1996 fprintf( outfile, "\tleal -4(%%esp), %%ebp\n" );
1997
1998 fprintf( outfile, "\tcall *%d(%%edx)\n", STACK16OFFSET(entry_point) );
1999
2000 /* Switch stack back */
2001 /* fprintf( outfile, "\t.byte 0x64\n\tlssw (%d), %%sp\n", STACKOFFSET ); */
2002 fprintf( outfile, "\t.byte 0x64,0x66,0x0f,0xb2,0x25\n\t.long %d\n", STACKOFFSET );
2003 fprintf( outfile, "\t.byte 0x64\n\tpopl (%d)\n", STACKOFFSET );
2004
2005 /* Restore registers and return directly to caller */
2006 fprintf( outfile, "\taddl $8, %%esp\n" );
2007 fprintf( outfile, "\tpopl %%ebp\n" );
2008 fprintf( outfile, "\tpopw %%ds\n" );
2009 fprintf( outfile, "\tpopw %%es\n" );
2010 fprintf( outfile, "\tpopw %%fs\n" );
2011 fprintf( outfile, "\tpopw %%gs\n" );
2012 fprintf( outfile, "\taddl $20, %%esp\n" );
2013
2014 fprintf( outfile, "\txorb %%ch, %%ch\n" );
2015 fprintf( outfile, "\tpopl %%ebx\n" );
2016 fprintf( outfile, "\taddw %%cx, %%sp\n" );
2017 fprintf( outfile, "\tpush %%ebx\n" );
2018
2019 fprintf( outfile, "\t.byte 0x66\n" );
2020 fprintf( outfile, "\tlret\n" );
2021
2022 return;
2023 }
2024
2025
2026 /* Build register CONTEXT */
2027 if ( reg_func )
2028 {
2029 fprintf( outfile, "\tsubl $%d, %%esp\n", sizeof(CONTEXT86) );
2030
2031 fprintf( outfile, "\tmovl %%ecx, %d(%%esp)\n", CONTEXTOFFSET(EFlags) );
2032
2033 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(Eax) );
2034 fprintf( outfile, "\tmovl %%ebx, %d(%%esp)\n", CONTEXTOFFSET(Ebx) );
2035 fprintf( outfile, "\tmovl %%esi, %d(%%esp)\n", CONTEXTOFFSET(Esi) );
2036 fprintf( outfile, "\tmovl %%edi, %d(%%esp)\n", CONTEXTOFFSET(Edi) );
2037
2038 fprintf( outfile, "\tmovl %d(%%edx), %%eax\n", STACK16OFFSET(ebp) );
2039 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(Ebp) );
2040 fprintf( outfile, "\tmovl %d(%%edx), %%eax\n", STACK16OFFSET(ecx) );
2041 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(Ecx) );
2042 fprintf( outfile, "\tmovl %d(%%edx), %%eax\n", STACK16OFFSET(edx) );
2043 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(Edx) );
2044
2045 fprintf( outfile, "\tmovzwl %d(%%edx), %%eax\n", STACK16OFFSET(ds) );
2046 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(SegDs) );
2047 fprintf( outfile, "\tmovzwl %d(%%edx), %%eax\n", STACK16OFFSET(es) );
2048 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(SegEs) );
2049 fprintf( outfile, "\tmovzwl %d(%%edx), %%eax\n", STACK16OFFSET(fs) );
2050 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(SegFs) );
2051 fprintf( outfile, "\tmovzwl %d(%%edx), %%eax\n", STACK16OFFSET(gs) );
2052 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(SegGs) );
2053
2054 fprintf( outfile, "\tmovzwl %d(%%edx), %%eax\n", STACK16OFFSET(cs) );
2055 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(SegCs) );
2056 fprintf( outfile, "\tmovzwl %d(%%edx), %%eax\n", STACK16OFFSET(ip) );
2057 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(Eip) );
2058
2059 fprintf( outfile, "\t.byte 0x64\n\tmovzwl (%d), %%eax\n", STACKOFFSET+2 );
2060 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(SegSs) );
2061 fprintf( outfile, "\t.byte 0x64\n\tmovzwl (%d), %%eax\n", STACKOFFSET );
2062 fprintf( outfile, "\taddl $%d, %%eax\n", STACK16OFFSET(ip) );
2063 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(Esp) );
2064 #if 0
2065 fprintf( outfile, "\tfsave %d(%%esp)\n", CONTEXTOFFSET(FloatSave) );
2066 #endif
2067
2068 /* Push address of CONTEXT86 structure -- popped by the relay routine */
2069 fprintf( outfile, "\tpushl %%esp\n" );
2070 }
2071
2072
2073 /* Print debug info before call */
2074 if ( debugging )
2075 {
2076 if ( UsePIC )
2077 {
2078 fprintf( outfile, "\tpushl %%ebx\n" );
2079
2080 /* Get Global Offset Table into %ebx (for PLT call) */
2081 fprintf( outfile, "\tcall .LCallFrom16%s.getgot2\n", name );
2082 fprintf( outfile, ".LCallFrom16%s.getgot2:\n", name );
2083 fprintf( outfile, "\tpopl %%ebx\n" );
2084 fprintf( outfile, "\taddl $_GLOBAL_OFFSET_TABLE_+[.-.LCallFrom16%s.getgot2], %%ebx\n", name );
2085 }
2086
2087 fprintf( outfile, "\tpushl %%edx\n" );
2088 if ( reg_func )
2089 fprintf( outfile, "\tleal -%d(%%ebp), %%eax\n\tpushl %%eax\n",
2090 sizeof(CONTEXT) + STRUCTOFFSET(STACK32FRAME, ebp) );
2091 else
2092 fprintf( outfile, "\tpushl $0\n" );
2093
2094 if ( UsePIC )
2095 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallFrom16@PLT\n ");
2096 else
2097 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallFrom16\n ");
2098
2099 fprintf( outfile, "\tpopl %%edx\n" );
2100 fprintf( outfile, "\tpopl %%edx\n" );
2101
2102 if ( UsePIC )
2103 fprintf( outfile, "\tpopl %%ebx\n" );
2104 }
2105
2106 /* Call relay routine (which will call the API entry point) */
2107 fprintf( outfile, "\tleal %d(%%edx), %%eax\n", sizeof(STACK16FRAME) );
2108 fprintf( outfile, "\tpushl %%eax\n" );
2109 fprintf( outfile, "\tpushl %d(%%edx)\n", STACK16OFFSET(entry_point) );
2110 fprintf( outfile, "\tcall *%d(%%edx)\n", STACK16OFFSET(relay) );
2111
2112 /* Print debug info after call */
2113 if ( debugging )
2114 {
2115 if ( UsePIC )
2116 {
2117 fprintf( outfile, "\tpushl %%ebx\n" );
2118
2119 /* Get Global Offset Table into %ebx (for PLT call) */
2120 fprintf( outfile, "\tcall .LCallFrom16%s.getgot3\n", name );
2121 fprintf( outfile, ".LCallFrom16%s.getgot3:\n", name );
2122 fprintf( outfile, "\tpopl %%ebx\n" );
2123 fprintf( outfile, "\taddl $_GLOBAL_OFFSET_TABLE_+[.-.LCallFrom16%s.getgot3], %%ebx\n", name );
2124 }
2125
2126 fprintf( outfile, "\tpushl %%eax\n" );
2127 if ( reg_func )
2128 fprintf( outfile, "\tleal -%d(%%ebp), %%eax\n\tpushl %%eax\n",
2129 sizeof(CONTEXT) + STRUCTOFFSET(STACK32FRAME, ebp) );
2130 else
2131 fprintf( outfile, "\tpushl $0\n" );
2132
2133 if ( UsePIC )
2134 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallFrom16Ret@PLT\n ");
2135 else
2136 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallFrom16Ret\n ");
2137
2138 fprintf( outfile, "\tpopl %%eax\n" );
2139 fprintf( outfile, "\tpopl %%eax\n" );
2140
2141 if ( UsePIC )
2142 fprintf( outfile, "\tpopl %%ebx\n" );
2143 }
2144
2145
2146 if ( reg_func )
2147 {
2148 fprintf( outfile, "\tmovl %%esp, %%ebx\n" );
2149
2150 /* Switch stack back */
2151 /* fprintf( outfile, "\t.byte 0x64\n\tlssw (%d), %%sp\n", STACKOFFSET ); */
2152 fprintf( outfile, "\t.byte 0x64,0x66,0x0f,0xb2,0x25\n\t.long %d\n", STACKOFFSET );
2153 fprintf( outfile, "\t.byte 0x64\n\tpopl (%d)\n", STACKOFFSET );
2154
2155 /* Get return address to CallFrom16 stub */
2156 fprintf( outfile, "\taddw $%d, %%sp\n", STACK16OFFSET(callfrom_ip)-4 );
2157 fprintf( outfile, "\tpopl %%eax\n" );
2158 fprintf( outfile, "\tpopl %%edx\n" );
2159
2160 /* Restore all registers from CONTEXT */
2161 fprintf( outfile, "\tmovw %d(%%ebx), %%ss\n", CONTEXTOFFSET(SegSs) );
2162 fprintf( outfile, "\tmovl %d(%%ebx), %%esp\n", CONTEXTOFFSET(Esp) );
2163 fprintf( outfile, "\taddl $4, %%esp\n" ); /* room for final return address */
2164
2165 fprintf( outfile, "\tpushw %d(%%ebx)\n", CONTEXTOFFSET(SegCs) );
2166 fprintf( outfile, "\tpushw %d(%%ebx)\n", CONTEXTOFFSET(Eip) );
2167 fprintf( outfile, "\tpushl %%edx\n" );
2168 fprintf( outfile, "\tpushl %%eax\n" );
2169 fprintf( outfile, "\tpushl %d(%%ebx)\n", CONTEXTOFFSET(EFlags) );
2170 fprintf( outfile, "\tpushl %d(%%ebx)\n", CONTEXTOFFSET(SegDs) );
2171
2172 fprintf( outfile, "\tmovw %d(%%ebx), %%es\n", CONTEXTOFFSET(SegEs) );
2173 fprintf( outfile, "\tmovw %d(%%ebx), %%fs\n", CONTEXTOFFSET(SegFs) );
2174 fprintf( outfile, "\tmovw %d(%%ebx), %%gs\n", CONTEXTOFFSET(SegGs) );
2175
2176 fprintf( outfile, "\tmovl %d(%%ebx), %%ebp\n", CONTEXTOFFSET(Ebp) );
2177 fprintf( outfile, "\tmovl %d(%%ebx), %%esi\n", CONTEXTOFFSET(Esi) );
2178 fprintf( outfile, "\tmovl %d(%%ebx), %%edi\n", CONTEXTOFFSET(Edi) );
2179 fprintf( outfile, "\tmovl %d(%%ebx), %%eax\n", CONTEXTOFFSET(Eax) );
2180 fprintf( outfile, "\tmovl %d(%%ebx), %%edx\n", CONTEXTOFFSET(Edx) );
2181 fprintf( outfile, "\tmovl %d(%%ebx), %%ecx\n", CONTEXTOFFSET(Ecx) );
2182 fprintf( outfile, "\tmovl %d(%%ebx), %%ebx\n", CONTEXTOFFSET(Ebx) );
2183
2184 fprintf( outfile, "\tpopl %%ds\n" );
2185 fprintf( outfile, "\tpopfl\n" );
2186 fprintf( outfile, "\tlret\n" );
2187 }
2188 else
2189 {
2190 /* Switch stack back */
2191 /* fprintf( outfile, "\t.byte 0x64\n\tlssw (%d), %%sp\n", STACKOFFSET ); */
2192 fprintf( outfile, "\t.byte 0x64,0x66,0x0f,0xb2,0x25\n\t.long %d\n", STACKOFFSET );
2193 fprintf( outfile, "\t.byte 0x64\n\tpopl (%d)\n", STACKOFFSET );
2194
2195 /* Restore registers */
2196 fprintf( outfile, "\tpopl %%edx\n" );
2197 fprintf( outfile, "\tpopl %%ecx\n" );
2198 fprintf( outfile, "\tpopl %%ebp\n" );
2199 fprintf( outfile, "\tpopw %%ds\n" );
2200 fprintf( outfile, "\tpopw %%es\n" );
2201 fprintf( outfile, "\tpopw %%fs\n" );
2202 fprintf( outfile, "\tpopw %%gs\n" );
2203
2204 /* Prepare return value and set flags accordingly */
2205 if ( !short_ret )
2206 fprintf( outfile, "\tshldl $16, %%eax, %%edx\n" );
2207 fprintf( outfile, "\torl %%eax, %%eax\n" );
2208
2209 /* Return to return stub which will return to caller */
2210 fprintf( outfile, "\tlret $12\n" );
2211 }
2212 }
2213
2214
2215 /*******************************************************************
2216 * BuildCallTo16Core
2217 *
2218 * This routine builds the core routines used in 32->16 thunks:
2219 *
2220 * extern void CALLBACK CallTo16Word( SEGPTR target, int nb_args );
2221 * extern void CALLBACK CallTo16Long( SEGPTR target, int nb_args );
2222 * extern void CALLBACK CallTo16RegisterShort( const CONTEXT86 *context, int nb_args );
2223 * extern void CALLBACK CallTo16RegisterLong ( const CONTEXT86 *context, int nb_args );
2224 *
2225 * These routines can be called directly from 32-bit code.
2226 *
2227 * All routines expect that the 16-bit stack contents (arguments) were
2228 * already set up by the caller; nb_args must contain the number of bytes
2229 * to be conserved. The 16-bit SS:SP will be set accordinly.
2230 *
2231 * All other registers are either taken from the CONTEXT86 structure
2232 * or else set to default values. The target routine address is either
2233 * given directly or taken from the CONTEXT86.
2234 *
2235 * If you want to call a 16-bit routine taking only standard argument types
2236 * (WORD and LONG), you can also have an appropriate argument conversion
2237 * stub automatically generated (see BuildCallTo16); you'd then call this
2238 * stub, which in turn would prepare the 16-bit stack and call the appropiate
2239 * core routine.
2240 *
2241 */
2242
2243 static void BuildCallTo16Core( FILE *outfile, int short_ret, int reg_func )
2244 {
2245 char *name = reg_func == 2 ? "RegisterLong" :
2246 reg_func == 1 ? "RegisterShort" :
2247 short_ret? "Word" : "Long";
2248
2249 /* Function header */
2250 fprintf( outfile, "\n\t.align 4\n" );
2251 #ifdef USE_STABS
2252 fprintf( outfile, ".stabs \"CallTo16%s:F1\",36,0,0," PREFIX "CallTo16%s\n",
2253 name, name);
2254 #endif
2255 fprintf( outfile, "\t.type " PREFIX "CallTo16%s,@function\n", name );
2256 fprintf( outfile, "\t.globl " PREFIX "CallTo16%s\n", name );
2257 fprintf( outfile, PREFIX "CallTo16%s:\n", name );
2258
2259 /* Function entry sequence */
2260 fprintf( outfile, "\tpushl %%ebp\n" );
2261 fprintf( outfile, "\tmovl %%esp, %%ebp\n" );
2262
2263 /* Save the 32-bit registers */
2264 fprintf( outfile, "\tpushl %%ebx\n" );
2265 fprintf( outfile, "\tpushl %%ecx\n" );
2266 fprintf( outfile, "\tpushl %%edx\n" );
2267 fprintf( outfile, "\tpushl %%esi\n" );
2268 fprintf( outfile, "\tpushl %%edi\n" );
2269
2270 if ( UsePIC )
2271 {
2272 /* Get Global Offset Table into %ebx */
2273 fprintf( outfile, "\tcall .LCallTo16%s.getgot1\n", name );
2274 fprintf( outfile, ".LCallTo16%s.getgot1:\n", name );
2275 fprintf( outfile, "\tpopl %%ebx\n" );
2276 fprintf( outfile, "\taddl $_GLOBAL_OFFSET_TABLE_+[.-.LCallTo16%s.getgot1], %%ebx\n", name );
2277 }
2278
2279 /* Enter Win16 Mutex */
2280 if ( UsePIC )
2281 fprintf( outfile, "\tcall " PREFIX "SYSLEVEL_EnterWin16Lock@PLT\n" );
2282 else
2283 fprintf( outfile, "\tcall " PREFIX "SYSLEVEL_EnterWin16Lock\n" );
2284
2285 /* Print debugging info */
2286 if (debugging)
2287 {
2288 /* Push flags, number of arguments, and target */
2289 fprintf( outfile, "\tpushl $%d\n", reg_func );
2290 fprintf( outfile, "\tpushl 12(%%ebp)\n" );
2291 fprintf( outfile, "\tpushl 8(%%ebp)\n" );
2292
2293 if ( UsePIC )
2294 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallTo16@PLT\n" );
2295 else
2296 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallTo16\n" );
2297
2298 fprintf( outfile, "\taddl $12, %%esp\n" );
2299 }
2300
2301 /* Get return address */
2302 if ( UsePIC )
2303 {
2304 fprintf( outfile, "\tmovl " PREFIX "CallTo16_RetAddr@GOT(%%ebx), %%ecx\n" );
2305 fprintf( outfile, "\tmovl " PREFIX "(%%ecx), %%ecx\n" );
2306 }
2307 else
2308 fprintf( outfile, "\tmovl " PREFIX "CallTo16_RetAddr, %%ecx\n" );
2309
2310 /* Call the actual CallTo16 routine (simulate a lcall) */
2311 fprintf( outfile, "\tpushl %%cs\n" );
2312 fprintf( outfile, "\tcall .LCallTo16%s\n", name );
2313
2314 /* Convert and push return value */
2315 if ( short_ret )
2316 {
2317 fprintf( outfile, "\tmovzwl %%ax, %%eax\n" );
2318 fprintf( outfile, "\tpushl %%eax\n" );
2319 }
2320 else if ( reg_func != 2 )
2321 {
2322 fprintf( outfile, "\tshll $16,%%edx\n" );
2323 fprintf( outfile, "\tmovw %%ax,%%dx\n" );
2324 fprintf( outfile, "\tpushl %%edx\n" );
2325 }
2326 else
2327 fprintf( outfile, "\tpushl %%eax\n" );
2328
2329 if ( UsePIC )
2330 {
2331 /* Get Global Offset Table into %ebx (might have been overwritten) */
2332 fprintf( outfile, "\tcall .LCallTo16%s.getgot2\n", name );
2333 fprintf( outfile, ".LCallTo16%s.getgot2:\n", name );
2334 fprintf( outfile, "\tpopl %%ebx\n" );
2335 fprintf( outfile, "\taddl $_GLOBAL_OFFSET_TABLE_+[.-.LCallTo16%s.getgot2], %%ebx\n", name );
2336 }
2337
2338 /* Print debugging info */
2339 if (debugging)
2340 {
2341 if ( UsePIC )
2342 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallTo16Ret@PLT\n" );
2343 else
2344 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallTo16Ret\n" );
2345 }
2346
2347 /* Leave Win16 Mutex */
2348 if ( UsePIC )
2349 fprintf( outfile, "\tcall " PREFIX "SYSLEVEL_LeaveWin16Lock@PLT\n" );
2350 else
2351 fprintf( outfile, "\tcall " PREFIX "SYSLEVEL_LeaveWin16Lock\n" );
2352
2353 /* Get return value */
2354 fprintf( outfile, "\tpopl %%eax\n" );
2355
2356 /* Restore the 32-bit registers */
2357 fprintf( outfile, "\tpopl %%edi\n" );
2358 fprintf( outfile, "\tpopl %%esi\n" );
2359 fprintf( outfile, "\tpopl %%edx\n" );
2360 fprintf( outfile, "\tpopl %%ecx\n" );
2361 fprintf( outfile, "\tpopl %%ebx\n" );
2362
2363 /* Function exit sequence */
2364 fprintf( outfile, "\tpopl %%ebp\n" );
2365 fprintf( outfile, "\tret $8\n" );
2366
2367
2368 /* Start of the actual CallTo16 routine */
2369
2370 fprintf( outfile, ".LCallTo16%s:\n", name );
2371
2372 /* Complete STACK32FRAME */
2373 fprintf( outfile, "\t.byte 0x64\n\tpushl (%d)\n", STACKOFFSET );
2374 fprintf( outfile, "\tmovl %%esp,%%edx\n" );
2375
2376 /* Switch to the 16-bit stack */
2377 #ifdef __svr4__
2378 fprintf( outfile,"\tdata16\n");
2379 #endif
2380 fprintf( outfile, "\t.byte 0x64\n\tmovw (%d),%%ss\n", STACKOFFSET + 2);
2381 fprintf( outfile, "\t.byte 0x64\n\tmovw (%d),%%sp\n", STACKOFFSET );
2382 fprintf( outfile, "\t.byte 0x64\n\tmovl %%edx,(%d)\n", STACKOFFSET );
2383
2384 /* Make %bp point to the previous stackframe (built by CallFrom16) */
2385 fprintf( outfile, "\tmovzwl %%sp,%%ebp\n" );
2386 fprintf( outfile, "\tleal %d(%%ebp),%%ebp\n", STACK16OFFSET(bp) );
2387
2388 /* Add the specified offset to the new sp */
2389 fprintf( outfile, "\tsubw %d(%%edx), %%sp\n", STACK32OFFSET(nb_args) );
2390
2391 /* Push the return address
2392 * With sreg suffix, we push 16:16 address (normal lret)
2393 * With lreg suffix, we push 16:32 address (0x66 lret, for KERNEL32_45)
2394 */
2395 if (reg_func != 2)
2396 fprintf( outfile, "\tpushl %%ecx\n" );
2397 else
2398 {
2399 fprintf( outfile, "\tshldl $16, %%ecx, %%eax\n" );
2400 fprintf( outfile, "\tpushw $0\n" );
2401 fprintf( outfile, "\tpushw %%ax\n" );
2402 fprintf( outfile, "\tpushw $0\n" );
2403 fprintf( outfile, "\tpushw %%cx\n" );
2404 }
2405
2406 if (reg_func)
2407 {
2408 /* Push the called routine address */
2409 fprintf( outfile, "\tmovl %d(%%edx),%%edx\n", STACK32OFFSET(target) );
2410 fprintf( outfile, "\tpushw %d(%%edx)\n", CONTEXTOFFSET(SegCs) );
2411 fprintf( outfile, "\tpushw %d(%%edx)\n", CONTEXTOFFSET(Eip) );
2412
2413 /* Get the registers */
2414 fprintf( outfile, "\tpushw %d(%%edx)\n", CONTEXTOFFSET(SegDs) );
2415 fprintf( outfile, "\tmovl %d(%%edx),%%eax\n", CONTEXTOFFSET(SegEs) );
2416 fprintf( outfile, "\tmovw %%ax,%%es\n" );
2417 fprintf( outfile, "\tmovl %d(%%edx),%%eax\n", CONTEXTOFFSET(SegFs) );
2418 fprintf( outfile, "\tmovw %%ax,%%fs\n" );
2419 fprintf( outfile, "\tmovl %d(%%edx),%%ebp\n", CONTEXTOFFSET(Ebp) );
2420 fprintf( outfile, "\tmovl %d(%%edx),%%esi\n", CONTEXTOFFSET(Esi) );
2421 fprintf( outfile, "\tmovl %d(%%edx),%%edi\n", CONTEXTOFFSET(Edi) );
2422 fprintf( outfile, "\tmovl %d(%%edx),%%eax\n", CONTEXTOFFSET(Eax) );
2423 fprintf( outfile, "\tmovl %d(%%edx),%%ebx\n", CONTEXTOFFSET(Ebx) );
2424 fprintf( outfile, "\tmovl %d(%%edx),%%ecx\n", CONTEXTOFFSET(Ecx) );
2425 fprintf( outfile, "\tmovl %d(%%edx),%%edx\n", CONTEXTOFFSET(Edx) );
2426
2427 /* Get the 16-bit ds */
2428 fprintf( outfile, "\tpopw %%ds\n" );
2429 }
2430 else /* not a register function */
2431 {
2432 /* Push the called routine address */
2433 fprintf( outfile, "\tpushl %d(%%edx)\n", STACK32OFFSET(target) );
2434
2435 /* Set %fs to the value saved by the last CallFrom16 */
2436 fprintf( outfile, "\tmovw %d(%%ebp),%%ax\n", STACK16OFFSET(fs)-STACK16OFFSET(bp) );
2437 fprintf( outfile, "\tmovw %%ax,%%fs\n" );
2438
2439 /* Set %ds and %es (and %ax just in case) equal to %ss */
2440 fprintf( outfile, "\tmovw %%ss,%%ax\n" );
2441 fprintf( outfile, "\tmovw %%ax,%%ds\n" );
2442 fprintf( outfile, "\tmovw %%ax,%%es\n" );
2443 }
2444
2445 /* Jump to the called routine */
2446 fprintf( outfile, "\t.byte 0x66\n" );
2447 fprintf( outfile, "\tlret\n" );
2448 }
2449
2450 /*******************************************************************
2451 * BuildRet16Func
2452 *
2453 * Build the return code for 16-bit callbacks
2454 */
2455 static void BuildRet16Func( FILE *outfile )
2456 {
2457 /*
2458 * Note: This must reside in the .data section to allow
2459 * run-time relocation of the SYSLEVEL_Win16CurrentTeb symbol
2460 */
2461
2462 fprintf( outfile, "\n\t.type " PREFIX "CallTo16_Ret,@function\n" );
2463 fprintf( outfile, "\t.globl " PREFIX "CallTo16_Ret\n" );
2464 fprintf( outfile, PREFIX "CallTo16_Ret:\n" );
2465
2466 /* Restore 32-bit segment registers */
2467
2468 fprintf( outfile, "\tmovw $0x%04x,%%bx\n", Data_Selector );
2469 #ifdef __svr4__
2470 fprintf( outfile, "\tdata16\n");
2471 #endif
2472 fprintf( outfile, "\tmovw %%bx,%%ds\n" );
2473 #ifdef __svr4__
2474 fprintf( outfile, "\tdata16\n");
2475 #endif
2476 fprintf( outfile, "\tmovw %%bx,%%es\n" );
2477
2478 fprintf( outfile, "\tmovw " PREFIX "SYSLEVEL_Win16CurrentTeb,%%fs\n" );
2479
2480 /* Restore the 32-bit stack */
2481
2482 #ifdef __svr4__
2483 fprintf( outfile, "\tdata16\n");
2484 #endif
2485 fprintf( outfile, "\tmovw %%bx,%%ss\n" );
2486 fprintf( outfile, "\t.byte 0x64\n\tmovl (%d),%%esp\n", STACKOFFSET );
2487 fprintf( outfile, "\t.byte 0x64\n\tpopl (%d)\n", STACKOFFSET );
2488
2489 /* Return to caller */
2490
2491 fprintf( outfile, "\tlret\n" );
2492
2493 /* Declare the return address variable */
2494
2495 fprintf( outfile, "\n\t.globl " PREFIX "CallTo16_RetAddr\n" );
2496 fprintf( outfile, PREFIX "CallTo16_RetAddr:\t.long 0\n" );
2497 }
2498
2499 /*******************************************************************
2500 * BuildCallTo32CBClient
2501 *
2502 * Call a CBClient relay stub from 32-bit code (KERNEL.620).
2503 *
2504 * Since the relay stub is itself 32-bit, this should not be a problem;
2505 * unfortunately, the relay stubs are expected to switch back to a
2506 * 16-bit stack (and 16-bit code) after completion :-(
2507 *
2508 * This would conflict with our 16- vs. 32-bit stack handling, so
2509 * we simply switch *back* to our 32-bit stack before returning to
2510 * the caller ...
2511 *
2512 * The CBClient relay stub expects to be called with the following
2513 * 16-bit stack layout, and with ebp and ebx pointing into the 16-bit
2514 * stack at the designated places:
2515 *
2516 * ...
2517 * (ebp+14) original arguments to the callback routine
2518 * (ebp+10) far return address to original caller
2519 * (ebp+6) Thunklet target address
2520 * (ebp+2) Thunklet relay ID code
2521 * (ebp) BP (saved by CBClientGlueSL)
2522 * (ebp-2) SI (saved by CBClientGlueSL)
2523 * (ebp-4) DI (saved by CBClientGlueSL)
2524 * (ebp-6) DS (saved by CBClientGlueSL)
2525 *
2526 * ... buffer space used by the 16-bit side glue for temp copies
2527 *
2528 * (ebx+4) far return address to 16-bit side glue code
2529 * (ebx) saved 16-bit ss:sp (pointing to ebx+4)
2530 *
2531 * The 32-bit side glue code accesses both the original arguments (via ebp)
2532 * and the temporary copies prepared by the 16-bit side glue (via ebx).
2533 * After completion, the stub will load ss:sp from the buffer at ebx
2534 * and perform a far return to 16-bit code.
2535 *
2536 * To trick the relay stub into returning to us, we replace the 16-bit
2537 * return address to the glue code by a cs:ip pair pointing to our
2538 * return entry point (the original return address is saved first).
2539 * Our return stub thus called will then reload the 32-bit ss:esp and
2540 * return to 32-bit code (by using and ss:esp value that we have also
2541 * pushed onto the 16-bit stack before and a cs:eip values found at
2542 * that position on the 32-bit stack). The ss:esp to be restored is
2543 * found relative to the 16-bit stack pointer at:
2544 *
2545 * (ebx-4) ss (flat)
2546 * (ebx-8) sp (32-bit stack pointer)
2547 *
2548 * The second variant of this routine, CALL32_CBClientEx, which is used
2549 * to implement KERNEL.621, has to cope with yet another problem: Here,
2550 * the 32-bit side directly returns to the caller of the CBClient thunklet,
2551 * restoring registers saved by CBClientGlueSL and cleaning up the stack.
2552 * As we have to return to our 32-bit code first, we have to adapt the
2553 * layout of our temporary area so as to include values for the registers
2554 * that are to be restored, and later (in the implementation of KERNEL.621)
2555 * we *really* restore them. The return stub restores DS, DI, SI, and BP
2556 * from the stack, skips the next 8 bytes (CBClient relay code / target),
2557 * and then performs a lret NN, where NN is the number of arguments to be
2558 * removed. Thus, we prepare our temporary area as follows:
2559 *
2560 * (ebx+22) 16-bit cs (this segment)
2561 * (ebx+20) 16-bit ip ('16-bit' return entry point)
2562 * (ebx+16) 32-bit ss (flat)
2563 * (ebx+12) 32-bit sp (32-bit stack pointer)
2564 * (ebx+10) 16-bit bp (points to ebx+24)
2565 * (ebx+8) 16-bit si (ignored)
2566 * (ebx+6) 16-bit di (ignored)
2567 * (ebx+4) 16-bit ds (we actually use the flat DS here)
2568 * (ebx+2) 16-bit ss (16-bit stack segment)
2569 * (ebx+0) 16-bit sp (points to ebx+4)
2570 *
2571 * Note that we ensure that DS is not changed and remains the flat segment,
2572 * and the 32-bit stack pointer our own return stub needs fits just
2573 * perfectly into the 8 bytes that are skipped by the Windows stub.
2574 * One problem is that we have to determine the number of removed arguments,
2575 * as these have to be really removed in KERNEL.621. Thus, the BP value
2576 * that we place in the temporary area to be restored, contains the value
2577 * that SP would have if no arguments were removed. By comparing the actual
2578 * value of SP with this value in our return stub we can compute the number
2579 * of removed arguments. This is then returned to KERNEL.621.
2580 *
2581 * The stack layout of this function:
2582 * (ebp+20) nArgs pointer to variable receiving nr. of args (Ex only)
2583 * (ebp+16) esi pointer to caller's esi value
2584 * (ebp+12) arg ebp value to be set for relay stub
2585 * (ebp+8) func CBClient relay stub address
2586 * (ebp+4) ret addr
2587 * (ebp) ebp
2588 */
2589 static void BuildCallTo32CBClient( FILE *outfile, BOOL isEx )
2590 {
2591 char *name = isEx? "CBClientEx" : "CBClient";
2592 int size = isEx? 24 : 12;
2593
2594 /* Function header */
2595
2596 fprintf( outfile, "\n\t.align 4\n" );
2597 #ifdef USE_STABS
2598 fprintf( outfile, ".stabs \"CALL32_%s:F1\",36,0,0," PREFIX "CALL32_%s\n",
2599 name, name );
2600 #endif
2601 fprintf( outfile, "\t.globl " PREFIX "CALL32_%s\n", name );
2602 fprintf( outfile, PREFIX "CALL32_%s:\n", name );
2603
2604 /* Entry code */
2605
2606 fprintf( outfile, "\tpushl %%ebp\n" );
2607 fprintf( outfile, "\tmovl %%esp,%%ebp\n" );
2608 fprintf( outfile, "\tpushl %%edi\n" );
2609 fprintf( outfile, "\tpushl %%esi\n" );
2610 fprintf( outfile, "\tpushl %%ebx\n" );
2611
2612 /* Get the 16-bit stack */
2613
2614 fprintf( outfile, "\t.byte 0x64\n\tmovl (%d),%%ebx\n", STACKOFFSET);
2615
2616 /* Convert it to a flat address */
2617
2618 fprintf( outfile, "\tshldl $16,%%ebx,%%eax\n" );
2619 fprintf( outfile, "\tandl $0xfff8,%%eax\n" );
2620 fprintf( outfile, "\tmovl " PREFIX "ldt_copy(%%eax),%%esi\n" );
2621 fprintf( outfile, "\tmovw %%bx,%%ax\n" );
2622 fprintf( outfile, "\taddl %%eax,%%esi\n" );
2623
2624 /* Allocate temporary area (simulate STACK16_PUSH) */
2625
2626 fprintf( outfile, "\tpushf\n" );
2627 fprintf( outfile, "\tcld\n" );
2628 fprintf( outfile, "\tleal -%d(%%esi), %%edi\n", size );
2629 fprintf( outfile, "\tmovl $%d, %%ecx\n", sizeof(STACK16FRAME) );
2630 fprintf( outfile, "\trep\n\tmovsb\n" );
2631 fprintf( outfile, "\tpopf\n" );
2632
2633 fprintf( outfile, "\t.byte 0x64\n\tsubw $%d,(%d)\n", size, STACKOFFSET );
2634
2635 fprintf( outfile, "\tpushl %%edi\n" ); /* remember address */
2636
2637 /* Set up temporary area */
2638
2639 if ( !isEx )
2640 {
2641 fprintf( outfile, "\tleal 4(%%edi), %%edi\n" );
2642
2643 fprintf( outfile, "\tleal -8(%%esp), %%eax\n" );
2644 fprintf( outfile, "\tmovl %%eax, -8(%%edi)\n" ); /* 32-bit sp */
2645
2646 fprintf( outfile, "\tmovw %%ss, %%ax\n" );
2647 fprintf( outfile, "\tandl $0x0000ffff, %%eax\n" );
2648 fprintf( outfile, "\tmovl %%eax, -4(%%edi)\n" ); /* 32-bit ss */
2649
2650 fprintf( outfile, "\taddl $%d, %%ebx\n", sizeof(STACK16FRAME)-size+4 + 4 );
2651 fprintf( outfile, "\tmovl %%ebx, 0(%%edi)\n" ); /* 16-bit ss:sp */
2652
2653 fprintf( outfile, "\tmovl " PREFIX "CALL32_%s_RetAddr, %%eax\n", name );
2654 fprintf( outfile, "\tmovl %%eax, 4(%%edi)\n" ); /* overwrite return address */
2655 }
2656 else
2657 {
2658 fprintf( outfile, "\taddl $%d, %%ebx\n", sizeof(STACK16FRAME)-size+4 );
2659 fprintf( outfile, "\tmovl %%ebx, 0(%%edi)\n" );
2660
2661 fprintf( outfile, "\tmovw %%ds, %%ax\n" );
2662 fprintf( outfile, "\tmovw %%ax, 4(%%edi)\n" );
2663
2664 fprintf( outfile, "\taddl $20, %%ebx\n" );
2665 fprintf( outfile, "\tmovw %%bx, 10(%%edi)\n" );
2666
2667 fprintf( outfile, "\tleal -8(%%esp), %%eax\n" );
2668 fprintf( outfile, "\tmovl %%eax, 12(%%edi)\n" );
2669
2670 fprintf( outfile, "\tmovw %%ss, %%ax\n" );
2671 fprintf( outfile, "\tandl $0x0000ffff, %%eax\n" );
2672 fprintf( outfile, "\tmovl %%eax, 16(%%edi)\n" );
2673
2674 fprintf( outfile, "\tmovl " PREFIX "CALL32_%s_RetAddr, %%eax\n", name );
2675 fprintf( outfile, "\tmovl %%eax, 20(%%edi)\n" );
2676 }
2677
2678 /* Set up registers and call CBClient relay stub (simulating a far call) */
2679
2680 fprintf( outfile, "\tmovl 16(%%ebp), %%esi\n" );
2681 fprintf( outfile, "\tmovl (%%esi), %%esi\n" );
2682
2683 fprintf( outfile, "\tmovl %%edi, %%ebx\n" );
2684 fprintf( outfile, "\tmovl 8(%%ebp), %%eax\n" );
2685 fprintf( outfile, "\tmovl 12(%%ebp), %%ebp\n" );
2686
2687 fprintf( outfile, "\tpushl %%cs\n" );
2688 fprintf( outfile, "\tcall *%%eax\n" );
2689
2690 /* Return new esi value to caller */
2691
2692 fprintf( outfile, "\tmovl 32(%%esp), %%edi\n" );
2693 fprintf( outfile, "\tmovl %%esi, (%%edi)\n" );
2694
2695 /* Cleanup temporary area (simulate STACK16_POP) */
2696
2697 fprintf( outfile, "\tpop %%esi\n" );
2698
2699 fprintf( outfile, "\tpushf\n" );
2700 fprintf( outfile, "\tstd\n" );
2701 fprintf( outfile, "\tdec %%esi\n" );
2702 fprintf( outfile, "\tleal %d(%%esi), %%edi\n", size );
2703 fprintf( outfile, "\tmovl $%d, %%ecx\n", sizeof(STACK16FRAME) );
2704 fprintf( outfile, "\trep\n\tmovsb\n" );
2705 fprintf( outfile, "\tpopf\n" );
2706
2707 fprintf( outfile, "\t.byte 0x64\n\taddw $%d,(%d)\n", size, STACKOFFSET );
2708
2709 /* Return argument size to caller */
2710 if ( isEx )
2711 {
2712 fprintf( outfile, "\tmovl 32(%%esp), %%ebx\n" );
2713 fprintf( outfile, "\tmovl %%ebp, (%%ebx)\n" );
2714 }
2715
2716 /* Restore registers and return */
2717
2718 fprintf( outfile, "\tpopl %%ebx\n" );
2719 fprintf( outfile, "\tpopl %%esi\n" );
2720 fprintf( outfile, "\tpopl %%edi\n" );
2721 fprintf( outfile, "\tpopl %%ebp\n" );
2722 fprintf( outfile, "\tret\n" );
2723 }
2724
2725 static void BuildCallTo32CBClientRet( FILE *outfile, BOOL isEx )
2726 {
2727 char *name = isEx? "CBClientEx" : "CBClient";
2728
2729 /* '16-bit' return stub */
2730
2731 fprintf( outfile, "\n\t.globl " PREFIX "CALL32_%s_Ret\n", name );
2732 fprintf( outfile, PREFIX "CALL32_%s_Ret:\n", name );
2733
2734 if ( !isEx )
2735 {
2736 fprintf( outfile, "\tmovzwl %%sp, %%ebx\n" );
2737 fprintf( outfile, "\tlssl %%ss:-16(%%ebx), %%esp\n" );
2738 }
2739 else
2740 {
2741 fprintf( outfile, "\tmovzwl %%bp, %%ebx\n" );
2742 fprintf( outfile, "\tsubw %%bp, %%sp\n" );
2743 fprintf( outfile, "\tmovzwl %%sp, %%ebp\n" );
2744 fprintf( outfile, "\tlssl %%ss:-12(%%ebx), %%esp\n" );
2745 }
2746 fprintf( outfile, "\tlret\n" );
2747
2748 /* Declare the return address variable */
2749
2750 fprintf( outfile, "\n\t.globl " PREFIX "CALL32_%s_RetAddr\n", name );
2751 fprintf( outfile, PREFIX "CALL32_%s_RetAddr:\t.long 0\n", name );
2752 }
2753
2754
2755 /*******************************************************************
2756 * BuildCallTo32LargeStack
2757 *
2758 * Build the function used to switch to the original 32-bit stack
2759 * before calling a 32-bit function from 32-bit code. This is used for
2760 * functions that need a large stack, like X bitmaps functions.
2761 *
2762 * The generated function has the following prototype:
2763 * int xxx( int (*func)(), void *arg );
2764 *
2765 * The pointer to the function can be retrieved by calling CALL32_Init,
2766 * which also takes care of saving the current 32-bit stack pointer.
2767 * Furthermore, CALL32_Init switches to a new stack and jumps to the
2768 * specified target address.
2769 *
2770 * NOTE: The CALL32_LargeStack routine may be recursively entered by the
2771 * same thread, but not concurrently entered by several threads.
2772 *
2773 * Stack layout of CALL32_Init:
2774 *
2775 * (esp+12) new stack address
2776 * (esp+8) target address
2777 * (esp+4) pointer to variable to receive CALL32_LargeStack address
2778 * (esp) ret addr
2779 *
2780 * Stack layout of CALL32_LargeStack:
2781 * ... ...
2782 * (ebp+12) arg
2783 * (ebp+8) func
2784 * (ebp+4) ret addr
2785 * (ebp) ebp
2786 */
2787 static void BuildCallTo32LargeStack( FILE *outfile )
2788 {
2789 /* Initialization function */
2790
2791 fprintf( outfile, "\n\t.align 4\n" );
2792 #ifdef USE_STABS
2793 fprintf( outfile, ".stabs \"CALL32_Init:F1\",36,0,0," PREFIX "CALL32_Init\n");
2794 #endif
2795 fprintf( outfile, "\t.globl " PREFIX "CALL32_Init\n" );
2796 fprintf( outfile, "\t.type " PREFIX "CALL32_Init,@function\n" );
2797 fprintf( outfile, PREFIX "CALL32_Init:\n" );
2798 fprintf( outfile, "\tmovl %%esp,CALL32_Original32_esp\n" );
2799 fprintf( outfile, "\tpopl %%eax\n" );
2800 fprintf( outfile, "\tpopl %%eax\n" );
2801 fprintf( outfile, "\tmovl $CALL32_LargeStack,(%%eax)\n" );
2802 fprintf( outfile, "\tpopl %%eax\n" );
2803 fprintf( outfile, "\tpopl %%esp\n" );
2804 fprintf( outfile, "\tpushl %%eax\n" );
2805 fprintf( outfile, "\tret\n" );
2806
2807 /* Function header */
2808
2809 fprintf( outfile, "\n\t.align 4\n" );
2810 #ifdef USE_STABS
2811 fprintf( outfile, ".stabs \"CALL32_LargeStack:F1\",36,0,0,CALL32_LargeStack\n");
2812 #endif
2813 fprintf( outfile, "CALL32_LargeStack:\n" );
2814
2815 /* Entry code */
2816
2817 fprintf( outfile, "\tpushl %%ebp\n" );
2818 fprintf( outfile, "\tmovl %%esp,%%ebp\n" );
2819
2820 /* Switch to the original 32-bit stack pointer */
2821
2822 fprintf( outfile, "\tcmpl $0, CALL32_RecursionCount\n" );
2823 fprintf( outfile, "\tjne CALL32_skip\n" );
2824 fprintf( outfile, "\tmovl CALL32_Original32_esp, %%esp\n" );
2825 fprintf( outfile, "CALL32_skip:\n" );
2826
2827 fprintf( outfile, "\tincl CALL32_RecursionCount\n" );
2828
2829 /* Transfer the argument and call the function */
2830
2831 fprintf( outfile, "\tpushl 12(%%ebp)\n" );
2832 fprintf( outfile, "\tcall *8(%%ebp)\n" );
2833
2834 /* Restore registers and return */
2835
2836 fprintf( outfile, "\tdecl CALL32_RecursionCount\n" );
2837
2838 fprintf( outfile, "\tmovl %%ebp,%%esp\n" );
2839 fprintf( outfile, "\tpopl %%ebp\n" );
2840 fprintf( outfile, "\tret\n" );
2841
2842 /* Data */
2843
2844 fprintf( outfile, "\t.data\n" );
2845 fprintf( outfile, "CALL32_Original32_esp:\t.long 0\n" );
2846 fprintf( outfile, "CALL32_RecursionCount:\t.long 0\n" );
2847 fprintf( outfile, "\t.text\n" );
2848 }
2849
2850
2851 /*******************************************************************
2852 * BuildCallFrom32Regs
2853 *
2854 * Build a 32-bit-to-Wine call-back function for a 'register' function.
2855 * 'args' is the number of dword arguments.
2856 *
2857 * Stack layout:
2858 * ...
2859 * (ebp+12) first arg
2860 * (ebp+8) ret addr to user code
2861 * (ebp+4) ret addr to relay code
2862 * (ebp+0) saved ebp
2863 * (ebp-128) buffer area to allow stack frame manipulation
2864 * (ebp-332) CONTEXT86 struct
2865 * (ebp-336) CONTEXT86 *argument
2866 * .... other arguments copied from (ebp+12)
2867 *
2868 * The entry point routine is called with a CONTEXT* extra argument,
2869 * following the normal args. In this context structure, EIP_reg
2870 * contains the return address to user code, and ESP_reg the stack
2871 * pointer on return (with the return address and arguments already
2872 * removed).
2873 */
2874 static void BuildCallFrom32Regs( FILE *outfile )
2875 {
2876 static const int STACK_SPACE = 128 + sizeof(CONTEXT86);
2877
2878 /* Function header */
2879
2880 fprintf( outfile, "\n\t.align 4\n" );
2881 #ifdef USE_STABS
2882 fprintf( outfile, ".stabs \"CALL32_Regs:F1\",36,0,0," PREFIX "CALL32_Regs\n" );
2883 #endif
2884 fprintf( outfile, "\t.globl " PREFIX "CALL32_Regs\n" );
2885 fprintf( outfile, PREFIX "CALL32_Regs:\n" );
2886
2887 /* Allocate some buffer space on the stack */
2888
2889 fprintf( outfile, "\tpushl %%ebp\n" );
2890 fprintf( outfile, "\tmovl %%esp,%%ebp\n ");
2891 fprintf( outfile, "\tleal -%d(%%esp), %%esp\n", STACK_SPACE );
2892
2893 /* Build the context structure */
2894
2895 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(Eax) - STACK_SPACE );
2896 fprintf( outfile, "\tpushfl\n" );
2897 fprintf( outfile, "\tpopl %%eax\n" );
2898 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(EFlags) - STACK_SPACE );
2899 fprintf( outfile, "\tmovl 0(%%ebp),%%eax\n" );
2900 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(Ebp) - STACK_SPACE );
2901 fprintf( outfile, "\tmovl %%ebx,%d(%%ebp)\n", CONTEXTOFFSET(Ebx) - STACK_SPACE );
2902 fprintf( outfile, "\tmovl %%ecx,%d(%%ebp)\n", CONTEXTOFFSET(Ecx) - STACK_SPACE );
2903 fprintf( outfile, "\tmovl %%edx,%d(%%ebp)\n", CONTEXTOFFSET(Edx) - STACK_SPACE );
2904 fprintf( outfile, "\tmovl %%esi,%d(%%ebp)\n", CONTEXTOFFSET(Esi) - STACK_SPACE );
2905 fprintf( outfile, "\tmovl %%edi,%d(%%ebp)\n", CONTEXTOFFSET(Edi) - STACK_SPACE );
2906
2907 fprintf( outfile, "\txorl %%eax,%%eax\n" );
2908 fprintf( outfile, "\tmovw %%cs,%%ax\n" );
2909 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegCs) - STACK_SPACE );
2910 fprintf( outfile, "\tmovw %%es,%%ax\n" );
2911 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegEs) - STACK_SPACE );
2912 fprintf( outfile, "\tmovw %%fs,%%ax\n" );
2913 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegFs) - STACK_SPACE );
2914 fprintf( outfile, "\tmovw %%gs,%%ax\n" );
2915 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegGs) - STACK_SPACE );
2916 fprintf( outfile, "\tmovw %%ss,%%ax\n" );
2917 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegSs) - STACK_SPACE );
2918 fprintf( outfile, "\tmovw %%ds,%%ax\n" );
2919 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegDs) - STACK_SPACE );
2920 fprintf( outfile, "\tmovw %%ax,%%es\n" ); /* set %es equal to %ds just in case */
2921
2922 fprintf( outfile, "\tmovl $0x%x,%%eax\n", CONTEXT86_FULL );
2923 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(ContextFlags) - STACK_SPACE );
2924
2925 fprintf( outfile, "\tmovl 8(%%ebp),%%eax\n" ); /* Get %eip at time of call */
2926 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(Eip) - STACK_SPACE );
2927
2928 /* Transfer the arguments */
2929
2930 fprintf( outfile, "\tmovl 4(%%ebp),%%ebx\n" ); /* get relay code addr */
2931 fprintf( outfile, "\tpushl %%esp\n" ); /* push ptr to context struct */
2932 fprintf( outfile, "\tmovzbl 4(%%ebx),%%ecx\n" ); /* fetch number of args to copy */
2933 fprintf( outfile, "\tjecxz 1f\n" );
2934 fprintf( outfile, "\tsubl %%ecx,%%esp\n" );
2935 fprintf( outfile, "\tleal 12(%%ebp),%%esi\n" ); /* get %esp at time of call */
2936 fprintf( outfile, "\tmovl %%esp,%%edi\n" );
2937 fprintf( outfile, "\tshrl $2,%%ecx\n" );
2938 fprintf( outfile, "\tcld\n" );
2939 fprintf( outfile, "\trep\n\tmovsl\n" ); /* copy args */
2940
2941 fprintf( outfile, "1:\tmovzbl 5(%%ebx),%%eax\n" ); /* fetch number of args to remove */
2942 fprintf( outfile, "\tleal 12(%%ebp,%%eax),%%eax\n" );
2943 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(Esp) - STACK_SPACE );
2944
2945 /* Call the entry point */
2946
2947 fprintf( outfile, "\tcall *0(%%ebx)\n" );
2948
2949 /* Store %eip and %ebp onto the new stack */
2950
2951 fprintf( outfile, "\tmovl %d(%%ebp),%%edx\n", CONTEXTOFFSET(Esp) - STACK_SPACE );
2952 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(Eip) - STACK_SPACE );
2953 fprintf( outfile, "\tmovl %%eax,-4(%%edx)\n" );
2954 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(Ebp) - STACK_SPACE );
2955 fprintf( outfile, "\tmovl %%eax,-8(%%edx)\n" );
2956
2957 /* Restore the context structure */
2958
2959 /* Note: we don't bother to restore %cs, %ds and %ss
2960 * changing them in 32-bit code is a recipe for disaster anyway
2961 */
2962 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(SegEs) - STACK_SPACE );
2963 fprintf( outfile, "\tmovw %%ax,%%es\n" );
2964 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(SegFs) - STACK_SPACE );
2965 fprintf( outfile, "\tmovw %%ax,%%fs\n" );
2966 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(SegGs) - STACK_SPACE );
2967 fprintf( outfile, "\tmovw %%ax,%%gs\n" );
2968
2969 fprintf( outfile, "\tmovl %d(%%ebp),%%edi\n", CONTEXTOFFSET(Edi) - STACK_SPACE );
2970 fprintf( outfile, "\tmovl %d(%%ebp),%%esi\n", CONTEXTOFFSET(Esi) - STACK_SPACE );
2971 fprintf( outfile, "\tmovl %d(%%ebp),%%edx\n", CONTEXTOFFSET(Edx) - STACK_SPACE );
2972 fprintf( outfile, "\tmovl %d(%%ebp),%%ecx\n", CONTEXTOFFSET(Ecx) - STACK_SPACE );
2973 fprintf( outfile, "\tmovl %d(%%ebp),%%ebx\n", CONTEXTOFFSET(Ebx) - STACK_SPACE );
2974
2975 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(EFlags) - STACK_SPACE );
2976 fprintf( outfile, "\tpushl %%eax\n" );
2977 fprintf( outfile, "\tpopfl\n" );
2978 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(Eax) - STACK_SPACE );
2979
2980 fprintf( outfile, "\tmovl %d(%%ebp),%%ebp\n", CONTEXTOFFSET(Esp) - STACK_SPACE );
2981 fprintf( outfile, "\tleal -8(%%ebp),%%esp\n" );
2982 fprintf( outfile, "\tpopl %%ebp\n" );
2983 fprintf( outfile, "\tret\n" );
2984 }
2985
2986
2987 /*******************************************************************
2988 * BuildGlue
2989 *
2990 * Build the 16-bit-to-Wine/Wine-to-16-bit callback glue code
2991 */
2992 static void BuildGlue( FILE *outfile, FILE *infile )
2993 {
2994 char buffer[1024];
2995
2996 /* File header */
2997
2998 fprintf( outfile, "/* File generated automatically from %s; do not edit! */\n\n",
2999 input_file_name );
3000 fprintf( outfile, "#include \"builtin16.h\"\n" );
3001 fprintf( outfile, "#include \"stackframe.h\"\n\n" );
3002
3003 /* Build the callback glue functions */
3004
3005 while (fgets( buffer, sizeof(buffer), infile ))
3006 {
3007 if (strstr( buffer, "### start build ###" )) break;
3008 }
3009 while (fgets( buffer, sizeof(buffer), infile ))
3010 {
3011 char *p;
3012 if ( (p = strstr( buffer, "CallFrom16_" )) != NULL )
3013 {
3014 char *q, *profile = p + strlen( "CallFrom16_" );
3015 for (q = profile; (*q == '_') || isalpha(*q); q++ )
3016 ;
3017 *q = '\0';
3018 for (q = p-1; q > buffer && ((*q == '_') || isalnum(*q)); q-- )
3019 ;
3020 if ( ++q < p ) p[-1] = '\0'; else q = "";
3021 BuildCallFrom16Func( outfile, profile, q, FALSE );
3022 }
3023 if ( (p = strstr( buffer, "CallTo16_" )) != NULL )
3024 {
3025 char *q, *profile = p + strlen( "CallTo16_" );
3026 for (q = profile; (*q == '_') || isalpha(*q); q++ )
3027 ;
3028 *q = '\0';
3029 for (q = p-1; q > buffer && ((*q == '_') || isalnum(*q)); q-- )
3030 ;
3031 if ( ++q < p ) p[-1] = '\0'; else q = "";
3032 BuildCallTo16Func( outfile, profile, q );
3033 }
3034 if (strstr( buffer, "### stop build ###" )) break;
3035 }
3036
3037 fclose( infile );
3038 }
3039
3040 /*******************************************************************
3041 * BuildCall16
3042 *
3043 * Build the 16-bit callbacks
3044 */
3045 static void BuildCall16( FILE *outfile )
3046 {
3047 /* File header */
3048
3049 fprintf( outfile, "/* File generated automatically. Do not edit! */\n\n" );
3050 fprintf( outfile, "\t.text\n" );
3051
3052 #ifdef __i386__
3053
3054 #ifdef USE_STABS
3055 if (output_file_name)
3056 {
3057 char buffer[1024];
3058 getcwd(buffer, sizeof(buffer));
3059 fprintf( outfile, "\t.file\t\"%s\"\n", output_file_name );
3060
3061 /*
3062 * The stabs help the internal debugger as they are an indication that it
3063 * is sensible to step into a thunk/trampoline.
3064 */
3065 fprintf( outfile, ".stabs \"%s/\",100,0,0,Code_Start\n", buffer);
3066 fprintf( outfile, ".stabs \"%s\",100,0,0,Code_Start\n", output_file_name );
3067 fprintf( outfile, "Code_Start:\n\n" );
3068 }
3069 #endif
3070 fprintf( outfile, PREFIX"Call16_Start:\n" );
3071 fprintf( outfile, "\t.globl "PREFIX"Call16_Start\n" );
3072 fprintf( outfile, "\t.byte 0\n\n" );
3073
3074
3075 /* Standard CallFrom16 routine (WORD return) */
3076 BuildCallFrom16Core( outfile, FALSE, FALSE, TRUE );
3077
3078 /* Standard CallFrom16 routine (DWORD return) */
3079 BuildCallFrom16Core( outfile, FALSE, FALSE, FALSE );
3080
3081 /* Register CallFrom16 routine */
3082 BuildCallFrom16Core( outfile, TRUE, FALSE, FALSE );
3083
3084 /* C16ThkSL CallFrom16 routine */
3085 BuildCallFrom16Core( outfile, FALSE, TRUE, FALSE );
3086
3087 /* Standard CallTo16 routine (WORD return) */
3088 BuildCallTo16Core( outfile, TRUE, FALSE );
3089
3090 /* Standard CallTo16 routine (DWORD return) */
3091 BuildCallTo16Core( outfile, FALSE, FALSE );
3092
3093 /* Register CallTo16 routine (16:16 retf) */
3094 BuildCallTo16Core( outfile, FALSE, 1 );
3095
3096 /* Register CallTo16 routine (16:32 retf) */
3097 BuildCallTo16Core( outfile, FALSE, 2 );
3098
3099 /* CBClientThunkSL routine */
3100 BuildCallTo32CBClient( outfile, FALSE );
3101
3102 /* CBClientThunkSLEx routine */
3103 BuildCallTo32CBClient( outfile, TRUE );
3104
3105 fprintf( outfile, PREFIX"Call16_End:\n" );
3106 fprintf( outfile, "\t.globl "PREFIX"Call16_End\n" );
3107
3108 #ifdef USE_STABS
3109 fprintf( outfile, "\t.stabs \"\",100,0,0,.Letext\n");
3110 fprintf( outfile, ".Letext:\n");
3111 #endif
3112
3113 /* The whole Call16_Ret segment must lie within the .data section */
3114 fprintf( outfile, "\n\t.data\n" );
3115 fprintf( outfile, "\t.globl " PREFIX "Call16_Ret_Start\n" );
3116 fprintf( outfile, PREFIX "Call16_Ret_Start:\n" );
3117
3118 /* Standard CallTo16 return stub */
3119 BuildRet16Func( outfile );
3120
3121 /* CBClientThunkSL return stub */
3122 BuildCallTo32CBClientRet( outfile, FALSE );
3123
3124 /* CBClientThunkSLEx return stub */
3125 BuildCallTo32CBClientRet( outfile, TRUE );
3126
3127 /* End of Call16_Ret segment */
3128 fprintf( outfile, "\n\t.globl " PREFIX "Call16_Ret_End\n" );
3129 fprintf( outfile, PREFIX "Call16_Ret_End:\n" );
3130
3131 #else /* __i386__ */
3132
3133 fprintf( outfile, PREFIX"Call16_Start:\n" );
3134 fprintf( outfile, "\t.globl "PREFIX"Call16_Start\n" );
3135 fprintf( outfile, "\t.byte 0\n\n" );
3136 fprintf( outfile, PREFIX"Call16_End:\n" );
3137 fprintf( outfile, "\t.globl "PREFIX"Call16_End\n" );
3138
3139 fprintf( outfile, "\t.globl " PREFIX "Call16_Ret_Start\n" );
3140 fprintf( outfile, PREFIX "Call16_Ret_Start:\n" );
3141 fprintf( outfile, "\t.byte 0\n\n" );
3142 fprintf( outfile, "\n\t.globl " PREFIX "Call16_Ret_End\n" );
3143 fprintf( outfile, PREFIX "Call16_Ret_End:\n" );
3144
3145 #endif /* __i386__ */
3146 }
3147
3148 /*******************************************************************
3149 * BuildCall32
3150 *
3151 * Build the 32-bit callbacks
3152 */
3153 static void BuildCall32( FILE *outfile )
3154 {
3155 /* File header */
3156
3157 fprintf( outfile, "/* File generated automatically. Do not edit! */\n\n" );
3158 fprintf( outfile, "\t.text\n" );
3159
3160 #ifdef __i386__
3161
3162 #ifdef USE_STABS
3163 if (output_file_name)
3164 {
3165 char buffer[1024];
3166 getcwd(buffer, sizeof(buffer));
3167 fprintf( outfile, "\t.file\t\"%s\"\n", output_file_name );
3168
3169 /*
3170 * The stabs help the internal debugger as they are an indication that it
3171 * is sensible to step into a thunk/trampoline.
3172 */
3173 fprintf( outfile, ".stabs \"%s/\",100,0,0,Code_Start\n", buffer);
3174 fprintf( outfile, ".stabs \"%s\",100,0,0,Code_Start\n", output_file_name );
3175 fprintf( outfile, "Code_Start:\n" );
3176 }
3177 #endif
3178
3179 /* Build the 32-bit large stack callback */
3180
3181 BuildCallTo32LargeStack( outfile );
3182
3183 /* Build the register callback function */
3184
3185 BuildCallFrom32Regs( outfile );
3186
3187 #ifdef USE_STABS
3188 fprintf( outfile, "\t.text\n");
3189 fprintf( outfile, "\t.stabs \"\",100,0,0,.Letext\n");
3190 fprintf( outfile, ".Letext:\n");
3191 #endif
3192
3193 #else /* __i386__ */
3194
3195 /* Just to avoid an empty file */
3196 fprintf( outfile, "\t.long 0\n" );
3197
3198 #endif /* __i386__ */
3199 }
3200
3201
3202 /*******************************************************************
3203 * usage
3204 */
3205 static void usage(void)
3206 {
3207 fprintf( stderr,
3208 "usage: build [-pic] [-o outfile] -spec SPEC_FILE\n"
3209 " build [-pic] [-o outfile] -glue SOURCE_FILE\n"
3210 " build [-pic] [-o outfile] -call16\n"
3211 " build [-pic] [-o outfile] -call32\n" );
3212 if (output_file_name) unlink( output_file_name );
3213 exit(1);
3214 }
3215
3216
3217 /*******************************************************************
3218 * open_input
3219 */
3220 static FILE *open_input( const char *name )
3221 {
3222 FILE *f;
3223
3224 if (!name)
3225 {
3226 input_file_name = "<stdin>";
3227 return stdin;
3228 }
3229 input_file_name = name;
3230 if (!(f = fopen( name, "r" )))
3231 {
3232 fprintf( stderr, "Cannot open input file '%s'\n", name );
3233 if (output_file_name) unlink( output_file_name );
3234 exit(1);
3235 }
3236 return f;
3237 }
3238
3239 /*******************************************************************
3240 * main
3241 */
3242 int main(int argc, char **argv)
3243 {
3244 FILE *outfile = stdout;
3245
3246 if (argc < 2) usage();
3247
3248 if (!strcmp( argv[1], "-pic" ))
3249 {
3250 UsePIC = 1;
3251 argv += 1;
3252 argc -= 1;
3253 if (argc < 2) usage();
3254 }
3255
3256 if (!strcmp( argv[1], "-o" ))
3257 {
3258 output_file_name = argv[2];
3259 argv += 2;
3260 argc -= 2;
3261 if (argc < 2) usage();
3262 if (!(outfile = fopen( output_file_name, "w" )))
3263 {
3264 fprintf( stderr, "Unable to create output file '%s'\n", output_file_name );
3265 exit(1);
3266 }
3267 }
3268
3269 /* Retrieve the selector values; this assumes that we are building
3270 * the asm files on the platform that will also run them. Probably
3271 * a safe assumption to make.
3272 */
3273 Code_Selector = __get_cs();
3274 Data_Selector = __get_ds();
3275
3276 if (!strcmp( argv[1], "-spec" )) BuildSpecFile( outfile, open_input( argv[2] ) );
3277 else if (!strcmp( argv[1], "-glue" )) BuildGlue( outfile, open_input( argv[2] ) );
3278 else if (!strcmp( argv[1], "-call16" )) BuildCall16( outfile );
3279 else if (!strcmp( argv[1], "-call32" )) BuildCall32( outfile );
3280 else
3281 {
3282 fclose( outfile );
3283 usage();
3284 }
3285
3286 fclose( outfile );
3287 return 0;
3288 }
Windows API implementation