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- Bugfix: Corrected "off by one" error in the linenumber while parsing
[wine.git] / tools / build.c
blobb8f8b4d24f42edb1214dad90c8e187d2c8ebc899
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 }
702 else if (strcmp(token, "file") == 0)
703 {
704 strcpy(DLLFileName, GetToken());
705 strupper(DLLFileName);
706 }
707 else if (strcmp(token, "type") == 0)
708 {
709 token = GetToken();
710 if (!strcmp(token, "win16" )) SpecType = SPEC_WIN16;
711 else if (!strcmp(token, "win32" )) SpecType = SPEC_WIN32;
712 else fatal_error( "Type must be 'win16' or 'win32'\n" );
713 }
714 else if (strcmp(token, "mode") == 0)
715 {
716 token = GetToken();
717 if (!strcmp(token, "dll" )) SpecMode = SPEC_MODE_DLL;
718 else if (!strcmp(token, "guiexe" )) SpecMode = SPEC_MODE_GUIEXE;
719 else if (!strcmp(token, "cuiexe" )) SpecMode = SPEC_MODE_CUIEXE;
720 else fatal_error( "Mode must be 'dll', 'guiexe' or 'cuiexe'\n" );
721 }
722 else if (strcmp(token, "heap") == 0)
723 {
724 token = GetToken();
725 if (!IsNumberString(token)) fatal_error( "Expected number after heap\n" );
726 DLLHeapSize = atoi(token);
727 }
728 else if (strcmp(token, "init") == 0)
729 {
730 strcpy(DLLInitFunc, GetToken());
731 if (SpecType == SPEC_WIN16)
732 fatal_error( "init cannot be used for Win16 spec files\n" );
733 if (!DLLInitFunc[0])
734 fatal_error( "Expected function name after init\n" );
735 if (!strcmp(DLLInitFunc, "main"))
736 fatal_error( "The init function cannot be named 'main'\n" );
737 }
738 else if (strcmp(token, "import") == 0)
739 {
740 if (nb_imports >= MAX_IMPORTS)
741 fatal_error( "Too many imports (limit %d)\n", MAX_IMPORTS );
742 if (SpecType != SPEC_WIN32)
743 fatal_error( "Imports not supported for Win16\n" );
744 DLLImports[nb_imports++] = xstrdup(GetToken());
745 }
746 else if (strcmp(token, "rsrc") == 0)
747 {
748 strcpy( rsrc_name, GetToken() );
749 strcat( rsrc_name, "_ResourceDescriptor" );
750 }
751 else if (strcmp(token, "@") == 0)
752 {
753 if (SpecType != SPEC_WIN32)
754 fatal_error( "'@' ordinals not supported for Win16\n" );
755 ParseOrdinal( -1 );
756 }
757 else if (IsNumberString(token))
758 {
759 ParseOrdinal( atoi(token) );
760 }
761 else
762 fatal_error( "Expected name, id, length or ordinal\n" );
763 }
764
765 if (!DLLFileName[0])
766 {
767 if (SpecMode == SPEC_MODE_DLL)
768 sprintf( DLLFileName, "%s.dll", DLLName );
769 else
770 sprintf( DLLFileName, "%s.exe", DLLName );
771 }
772 }
773
774
775 /*******************************************************************
776 * StoreVariableCode
777 *
778 * Store a list of ints into a byte array.
779 */
780 static int StoreVariableCode( unsigned char *buffer, int size, ORDDEF *odp )
781 {
782 int i;
783
784 switch(size)
785 {
786 case 1:
787 for (i = 0; i < odp->u.var.n_values; i++)
788 buffer[i] = odp->u.var.values[i];
789 break;
790 case 2:
791 for (i = 0; i < odp->u.var.n_values; i++)
792 ((unsigned short *)buffer)[i] = odp->u.var.values[i];
793 break;
794 case 4:
795 for (i = 0; i < odp->u.var.n_values; i++)
796 ((unsigned int *)buffer)[i] = odp->u.var.values[i];
797 break;
798 }
799 return odp->u.var.n_values * size;
800 }
801
802
803 /*******************************************************************
804 * DumpBytes
805 *
806 * Dump a byte stream into the assembly code.
807 */
808 static void DumpBytes( FILE *outfile, const unsigned char *data, int len,
809 const char *label )
810 {
811 int i;
812
813 fprintf( outfile, "\nstatic BYTE %s[] = \n{", label );
814
815 for (i = 0; i < len; i++)
816 {
817 if (!(i & 0x0f)) fprintf( outfile, "\n " );
818 fprintf( outfile, "%d", *data++ );
819 if (i < len - 1) fprintf( outfile, ", " );
820 }
821 fprintf( outfile, "\n};\n" );
822 }
823
824
825 /*******************************************************************
826 * BuildModule16
827 *
828 * Build the in-memory representation of a 16-bit NE module, and dump it
829 * as a byte stream into the assembly code.
830 */
831 static int BuildModule16( FILE *outfile, int max_code_offset,
832 int max_data_offset )
833 {
834 int i;
835 char *buffer;
836 NE_MODULE *pModule;
837 SEGTABLEENTRY *pSegment;
838 OFSTRUCT *pFileInfo;
839 BYTE *pstr;
840 WORD *pword;
841 ET_BUNDLE *bundle = 0;
842 ET_ENTRY *entry = 0;
843
844 /* Module layout:
845 * NE_MODULE Module
846 * OFSTRUCT File information
847 * SEGTABLEENTRY Segment 1 (code)
848 * SEGTABLEENTRY Segment 2 (data)
849 * WORD[2] Resource table (empty)
850 * BYTE[2] Imported names (empty)
851 * BYTE[n] Resident names table
852 * BYTE[n] Entry table
853 */
854
855 buffer = xmalloc( 0x10000 );
856
857 pModule = (NE_MODULE *)buffer;
858 memset( pModule, 0, sizeof(*pModule) );
859 pModule->magic = IMAGE_OS2_SIGNATURE;
860 pModule->count = 1;
861 pModule->next = 0;
862 pModule->flags = NE_FFLAGS_SINGLEDATA | NE_FFLAGS_BUILTIN | NE_FFLAGS_LIBMODULE;
863 pModule->dgroup = 2;
864 pModule->heap_size = DLLHeapSize;
865 pModule->stack_size = 0;
866 pModule->ip = 0;
867 pModule->cs = 0;
868 pModule->sp = 0;
869 pModule->ss = 0;
870 pModule->seg_count = 2;
871 pModule->modref_count = 0;
872 pModule->nrname_size = 0;
873 pModule->modref_table = 0;
874 pModule->nrname_fpos = 0;
875 pModule->moveable_entries = 0;
876 pModule->alignment = 0;
877 pModule->truetype = 0;
878 pModule->os_flags = NE_OSFLAGS_WINDOWS;
879 pModule->misc_flags = 0;
880 pModule->dlls_to_init = 0;
881 pModule->nrname_handle = 0;
882 pModule->min_swap_area = 0;
883 pModule->expected_version = 0;
884 pModule->module32 = 0;
885 pModule->self = 0;
886 pModule->self_loading_sel = 0;
887
888 /* File information */
889
890 pFileInfo = (OFSTRUCT *)(pModule + 1);
891 pModule->fileinfo = (int)pFileInfo - (int)pModule;
892 memset( pFileInfo, 0, sizeof(*pFileInfo) - sizeof(pFileInfo->szPathName) );
893 pFileInfo->cBytes = sizeof(*pFileInfo) - sizeof(pFileInfo->szPathName)
894 + strlen(DLLFileName);
895 strcpy( pFileInfo->szPathName, DLLFileName );
896 pstr = (char *)pFileInfo + pFileInfo->cBytes + 1;
897
898 #ifdef __i386__ /* FIXME: Alignment problems! */
899
900 /* Segment table */
901
902 pSegment = (SEGTABLEENTRY *)pstr;
903 pModule->seg_table = (int)pSegment - (int)pModule;
904 pSegment->filepos = 0;
905 pSegment->size = max_code_offset;
906 pSegment->flags = 0;
907 pSegment->minsize = max_code_offset;
908 pSegment->hSeg = 0;
909 pSegment++;
910
911 pModule->dgroup_entry = (int)pSegment - (int)pModule;
912 pSegment->filepos = 0;
913 pSegment->size = max_data_offset;
914 pSegment->flags = NE_SEGFLAGS_DATA;
915 pSegment->minsize = max_data_offset;
916 pSegment->hSeg = 0;
917 pSegment++;
918
919 /* Resource table */
920
921 pword = (WORD *)pSegment;
922 pModule->res_table = (int)pword - (int)pModule;
923 *pword++ = 0;
924 *pword++ = 0;
925
926 /* Imported names table */
927
928 pstr = (char *)pword;
929 pModule->import_table = (int)pstr - (int)pModule;
930 *pstr++ = 0;
931 *pstr++ = 0;
932
933 /* Resident names table */
934
935 pModule->name_table = (int)pstr - (int)pModule;
936 /* First entry is module name */
937 *pstr = strlen(DLLName );
938 strcpy( pstr + 1, DLLName );
939 pstr += *pstr + 1;
940 *(WORD *)pstr = 0;
941 pstr += sizeof(WORD);
942 /* Store all ordinals */
943 for (i = 1; i <= Limit; i++)
944 {
945 ORDDEF *odp = Ordinals[i];
946 if (!odp || !odp->name[0]) continue;
947 *pstr = strlen( odp->name );
948 strcpy( pstr + 1, odp->name );
949 strupper( pstr + 1 );
950 pstr += *pstr + 1;
951 *(WORD *)pstr = i;
952 pstr += sizeof(WORD);
953 }
954 *pstr++ = 0;
955
956 /* Entry table */
957
958 pModule->entry_table = (int)pstr - (int)pModule;
959 for (i = 1; i <= Limit; i++)
960 {
961 int selector = 0;
962 ORDDEF *odp = Ordinals[i];
963 if (!odp) continue;
964
965 switch (odp->type)
966 {
967 case TYPE_CDECL:
968 case TYPE_PASCAL:
969 case TYPE_PASCAL_16:
970 case TYPE_REGISTER:
971 case TYPE_INTERRUPT:
972 case TYPE_STUB:
973 selector = 1; /* Code selector */
974 break;
975
976 case TYPE_BYTE:
977 case TYPE_WORD:
978 case TYPE_LONG:
979 selector = 2; /* Data selector */
980 break;
981
982 case TYPE_ABS:
983 selector = 0xfe; /* Constant selector */
984 break;
985
986 default:
987 selector = 0; /* Invalid selector */
988 break;
989 }
990
991 if ( !selector )
992 continue;
993
994 if ( bundle && bundle->last+1 == i )
995 bundle->last++;
996 else
997 {
998 if ( bundle )
999 bundle->next = (char *)pstr - (char *)pModule;
1000
1001 bundle = (ET_BUNDLE *)pstr;
1002 bundle->first = i-1;
1003 bundle->last = i;
1004 bundle->next = 0;
1005 pstr += sizeof(ET_BUNDLE);
1006 }
1007
1008 /* FIXME: is this really correct ?? */
1009 entry = (ET_ENTRY *)pstr;
1010 entry->type = 0xff; /* movable */
1011 entry->flags = 3; /* exported & public data */
1012 entry->segnum = selector;
1013 entry->offs = odp->offset;
1014 pstr += sizeof(ET_ENTRY);
1015 }
1016 *pstr++ = 0;
1017 #endif
1018
1019 /* Dump the module content */
1020
1021 DumpBytes( outfile, (char *)pModule, (int)pstr - (int)pModule,
1022 "Module" );
1023 return (int)pstr - (int)pModule;
1024 }
1025
1026
1027 /*******************************************************************
1028 * output_exports
1029 *
1030 * Output the export table for a Win32 module.
1031 */
1032 static void output_exports( FILE *outfile, int nr_exports, int nr_names, int fwd_size )
1033 {
1034 int i, fwd_pos = 0;
1035
1036 if (!nr_exports) return;
1037
1038 fprintf( outfile, "typedef void (*func_ptr)();\n" );
1039 fprintf( outfile, "static struct {\n" );
1040 fprintf( outfile, " struct {\n" );
1041 fprintf( outfile, " unsigned int Characteristics;\n" );
1042 fprintf( outfile, " unsigned int TimeDateStamp;\n" );
1043 fprintf( outfile, " unsigned short MajorVersion;\n" );
1044 fprintf( outfile, " unsigned short MinorVersion;\n" );
1045 fprintf( outfile, " const char *Name;\n" );
1046 fprintf( outfile, " unsigned int Base;\n" );
1047 fprintf( outfile, " unsigned int NumberOfFunctions;\n" );
1048 fprintf( outfile, " unsigned int NumberOfNames;\n" );
1049 fprintf( outfile, " func_ptr *AddressOfFunctions;\n" );
1050 fprintf( outfile, " const char **AddressOfNames;\n" );
1051 fprintf( outfile, " unsigned short *AddressOfNameOrdinals;\n" );
1052 fprintf( outfile, " func_ptr functions[%d];\n", nr_exports );
1053 if (nb_names)
1054 {
1055 fprintf( outfile, " const char *names[%d];\n", nb_names );
1056 fprintf( outfile, " unsigned short ordinals[%d];\n", nb_names );
1057 if (nb_names % 2) fprintf( outfile, " unsigned short pad1;\n" );
1058 }
1059 if (fwd_size)
1060 {
1061 fprintf( outfile, " char forwards[%d];\n", (fwd_size + 3) & ~3 );
1062 }
1063 fprintf( outfile, " } exp;\n" );
1064
1065 #ifdef __i386__
1066 fprintf( outfile, " struct {\n" );
1067 fprintf( outfile, " unsigned char jmp;\n" );
1068 fprintf( outfile, " unsigned char addr[4];\n" );
1069 fprintf( outfile, " unsigned char ret;\n" );
1070 fprintf( outfile, " unsigned short args;\n" );
1071 fprintf( outfile, " func_ptr orig;\n" );
1072 fprintf( outfile, " unsigned int argtypes;\n" );
1073 fprintf( outfile, " } relay[%d];\n", nr_exports );
1074 #endif /* __i386__ */
1075
1076 fprintf( outfile, "} exports = {\n {\n" );
1077 fprintf( outfile, " 0,\n" ); /* Characteristics */
1078 fprintf( outfile, " 0,\n" ); /* TimeDateStamp */
1079 fprintf( outfile, " 0,\n" ); /* MajorVersion */
1080 fprintf( outfile, " 0,\n" ); /* MinorVersion */
1081 fprintf( outfile, " dllname,\n" ); /* Name */
1082 fprintf( outfile, " %d,\n", Base ); /* Base */
1083 fprintf( outfile, " %d,\n", nr_exports ); /* NumberOfFunctions */
1084 fprintf( outfile, " %d,\n", nb_names ); /* NumberOfNames */
1085 fprintf( outfile, " exports.exp.functions,\n" ); /* AddressOfFunctions */
1086 if (nb_names)
1087 {
1088 fprintf( outfile, " exports.exp.names,\n" ); /* AddressOfNames */
1089 fprintf( outfile, " exports.exp.ordinals,\n" ); /* AddressOfNameOrdinals */
1090 }
1091 else
1092 {
1093 fprintf( outfile, " 0,\n" ); /* AddressOfNames */
1094 fprintf( outfile, " 0,\n" ); /* AddressOfNameOrdinals */
1095 }
1096
1097 /* output the function addresses */
1098
1099 fprintf( outfile, " {\n " );
1100 for (i = Base; i <= Limit; i++)
1101 {
1102 ORDDEF *odp = Ordinals[i];
1103 if (!odp) fprintf( outfile, "0" );
1104 else switch(odp->type)
1105 {
1106 case TYPE_EXTERN:
1107 fprintf( outfile, "%s", odp->u.ext.link_name );
1108 break;
1109 case TYPE_STDCALL:
1110 case TYPE_VARARGS:
1111 case TYPE_CDECL:
1112 fprintf( outfile, "%s", odp->u.func.link_name);
1113 break;
1114 case TYPE_STUB:
1115 fprintf( outfile, "__stub_%d", i );
1116 break;
1117 case TYPE_REGISTER:
1118 fprintf( outfile, "__regs_%d", i );
1119 break;
1120 case TYPE_FORWARD:
1121 fprintf( outfile, "(func_ptr)&exports.exp.forwards[%d] /* %s */",
1122 fwd_pos, odp->u.fwd.link_name );
1123 fwd_pos += strlen(odp->u.fwd.link_name) + 1;
1124 break;
1125 default:
1126 assert(0);
1127 }
1128 if (i < Limit) fprintf( outfile, ",\n " );
1129 else fprintf( outfile, "\n },\n" );
1130 }
1131
1132 if (nb_names)
1133 {
1134 /* output the function names */
1135
1136 fprintf( outfile, " {\n" );
1137 for (i = 0; i < nb_names; i++)
1138 {
1139 if (i) fprintf( outfile, ",\n" );
1140 fprintf( outfile, " \"%s\"", Names[i]->name );
1141 }
1142 fprintf( outfile, "\n },\n" );
1143
1144 /* output the function ordinals */
1145
1146 fprintf( outfile, " {\n " );
1147 for (i = 0; i < nb_names; i++)
1148 {
1149 fprintf( outfile, "%4d", Names[i]->ordinal - Base );
1150 if (i < nb_names-1)
1151 {
1152 fputc( ',', outfile );
1153 if ((i % 8) == 7) fprintf( outfile, "\n " );
1154 }
1155 }
1156 fprintf( outfile, "\n },\n" );
1157 if (nb_names % 2) fprintf( outfile, " 0,\n" );
1158 }
1159
1160 /* output forwards */
1161
1162 if (fwd_size)
1163 {
1164 for (i = Base; i <= Limit; i++)
1165 {
1166 ORDDEF *odp = Ordinals[i];
1167 if (odp && odp->type == TYPE_FORWARD)
1168 fprintf( outfile, " \"%s\\0\"\n", odp->u.fwd.link_name );
1169 }
1170 }
1171
1172 /* output relays */
1173
1174 #ifdef __i386__
1175 fprintf( outfile, " },\n {\n" );
1176 for (i = Base; i <= Limit; i++)
1177 {
1178 ORDDEF *odp = Ordinals[i];
1179
1180 if (odp && ((odp->type == TYPE_STDCALL) ||
1181 (odp->type == TYPE_CDECL) ||
1182 (odp->type == TYPE_REGISTER)))
1183 {
1184 unsigned int j, mask = 0;
1185 for (j = 0; odp->u.func.arg_types[j]; j++)
1186 {
1187 if (odp->u.func.arg_types[j] == 't') mask |= 1<< (j*2);
1188 if (odp->u.func.arg_types[j] == 'W') mask |= 2<< (j*2);
1189 }
1190
1191 switch(odp->type)
1192 {
1193 case TYPE_STDCALL:
1194 fprintf( outfile, " { 0xe9, { 0,0,0,0 }, 0xc2, 0x%04x, %s, 0x%08x }",
1195 strlen(odp->u.func.arg_types) * sizeof(int),
1196 odp->u.func.link_name, mask );
1197 break;
1198 case TYPE_CDECL:
1199 fprintf( outfile, " { 0xe9, { 0,0,0,0 }, 0xc3, 0x%04x, %s, 0x%08x }",
1200 strlen(odp->u.func.arg_types) * sizeof(int),
1201 odp->u.func.link_name, mask );
1202 break;
1203 case TYPE_REGISTER:
1204 fprintf( outfile, " { 0xe9, { 0,0,0,0 }, 0xc3, 0x%04x, __regs_%d, 0x%08x }",
1205 0x8000 | (strlen(odp->u.func.arg_types) * sizeof(int)), i, mask );
1206 break;
1207 default:
1208 assert(0);
1209 }
1210 }
1211 else fprintf( outfile, " { 0, }" );
1212
1213 if (i < Limit) fprintf( outfile, ",\n" );
1214 }
1215 #endif /* __i386__ */
1216
1217 fprintf( outfile, " }\n};\n" );
1218 }
1219
1220
1221 /*******************************************************************
1222 * BuildSpec32File
1223 *
1224 * Build a Win32 C file from a spec file.
1225 */
1226 static int BuildSpec32File( FILE *outfile )
1227 {
1228 ORDDEF *odp;
1229 int i, fwd_size = 0, have_regs = FALSE;
1230 int nr_exports;
1231 const char *init_func;
1232 DWORD page_size;
1233
1234 #ifdef HAVE_GETPAGESIZE
1235 page_size = getpagesize();
1236 #else
1237 # ifdef __svr4__
1238 page_size = sysconf(_SC_PAGESIZE);
1239 # else
1240 # error Cannot get the page size on this platform
1241 # endif
1242 #endif
1243
1244 AssignOrdinals();
1245 nr_exports = Base <= Limit ? Limit - Base + 1 : 0;
1246
1247 fprintf( outfile, "/* File generated automatically from %s; do not edit! */\n\n",
1248 input_file_name );
1249 fprintf( outfile, "#include \"builtin32.h\"\n\n" );
1250
1251 /* Reserve some space for the PE header */
1252
1253 fprintf( outfile, "extern char pe_header[];\n" );
1254 fprintf( outfile, "asm(\".section .text\\n\\t\"\n" );
1255 fprintf( outfile, " \".align %ld\\n\"\n", page_size );
1256 fprintf( outfile, " \"pe_header:\\t.fill %ld,1,0\\n\\t\");\n", page_size );
1257
1258 fprintf( outfile, "static const char dllname[] = \"%s\";\n", DLLName );
1259
1260 /* Output the DLL functions prototypes */
1261
1262 for (i = 0, odp = EntryPoints; i < nb_entry_points; i++, odp++)
1263 {
1264 switch(odp->type)
1265 {
1266 case TYPE_EXTERN:
1267 fprintf( outfile, "extern void %s();\n", odp->u.ext.link_name );
1268 break;
1269 case TYPE_STDCALL:
1270 case TYPE_VARARGS:
1271 case TYPE_CDECL:
1272 fprintf( outfile, "extern void %s();\n", odp->u.func.link_name );
1273 break;
1274 case TYPE_FORWARD:
1275 fwd_size += strlen(odp->u.fwd.link_name) + 1;
1276 break;
1277 case TYPE_REGISTER:
1278 fprintf( outfile, "extern void __regs_%d();\n", odp->ordinal );
1279 have_regs = TRUE;
1280 break;
1281 case TYPE_STUB:
1282 if (odp->name[0])
1283 fprintf( outfile,
1284 "static void __stub_%d() { BUILTIN32_Unimplemented(dllname,\"%s\"); }\n",
1285 odp->ordinal, odp->name );
1286 else
1287 fprintf( outfile,
1288 "static void __stub_%d() { BUILTIN32_Unimplemented(dllname,\"%d\"); }\n",
1289 odp->ordinal, odp->ordinal );
1290
1291 break;
1292 default:
1293 fprintf(stderr,"build: function type %d not available for Win32\n",
1294 odp->type);
1295 return -1;
1296 }
1297 }
1298
1299 /* Output code for all register functions */
1300
1301 if ( have_regs )
1302 {
1303 fprintf( outfile, "#ifndef __GNUC__\n" );
1304 fprintf( outfile, "static void __asm__dummy(void) {\n" );
1305 fprintf( outfile, "#endif /* !defined(__GNUC__) */\n" );
1306 for (i = 0, odp = EntryPoints; i < nb_entry_points; i++, odp++)
1307 {
1308 if (odp->type != TYPE_REGISTER) continue;
1309 fprintf( outfile,
1310 "asm(\".align 4\\n\\t\"\n"
1311 " \".type " PREFIX "__regs_%d,@function\\n\\t\"\n"
1312 " \"" PREFIX "__regs_%d:\\n\\t\"\n"
1313 " \"call " PREFIX "CALL32_Regs\\n\\t\"\n"
1314 " \".long " PREFIX "%s\\n\\t\"\n"
1315 " \".byte %d,%d\");\n",
1316 odp->ordinal, odp->ordinal, odp->u.func.link_name,
1317 4 * strlen(odp->u.func.arg_types),
1318 4 * strlen(odp->u.func.arg_types) );
1319 }
1320 fprintf( outfile, "#ifndef __GNUC__\n" );
1321 fprintf( outfile, "}\n" );
1322 fprintf( outfile, "#endif /* !defined(__GNUC__) */\n" );
1323 }
1324
1325 /* Output the exports and relay entry points */
1326
1327 output_exports( outfile, nr_exports, nb_names, fwd_size );
1328
1329 /* Output the DLL imports */
1330
1331 if (nb_imports)
1332 {
1333 fprintf( outfile, "static const char * const Imports[%d] =\n{\n", nb_imports );
1334 for (i = 0; i < nb_imports; i++)
1335 {
1336 fprintf( outfile, " \"%s\"", DLLImports[i] );
1337 if (i < nb_imports-1) fprintf( outfile, ",\n" );
1338 }
1339 fprintf( outfile, "\n};\n\n" );
1340 }
1341
1342 /* Output LibMain function */
1343
1344 init_func = DLLInitFunc[0] ? DLLInitFunc : NULL;
1345 switch(SpecMode)
1346 {
1347 case SPEC_MODE_DLL:
1348 if (init_func) fprintf( outfile, "extern void %s();\n", init_func );
1349 break;
1350 case SPEC_MODE_GUIEXE:
1351 if (!init_func) init_func = "WinMain";
1352 fprintf( outfile,
1353 "\n#include <winbase.h>\n"
1354 "static void exe_main(void)\n"
1355 "{\n"
1356 " extern int PASCAL %s(HINSTANCE,HINSTANCE,LPCSTR,INT);\n"
1357 " STARTUPINFOA info;\n"
1358 " const char *cmdline = GetCommandLineA();\n"
1359 " while (*cmdline && *cmdline != ' ') cmdline++;\n"
1360 " if (*cmdline) cmdline++;\n"
1361 " GetStartupInfoA( &info );\n"
1362 " if (!(info.dwFlags & STARTF_USESHOWWINDOW)) info.wShowWindow = 1;\n"
1363 " ExitProcess( %s( GetModuleHandleA(0), 0, cmdline, info.wShowWindow ) );\n"
1364 "}\n\n", init_func, init_func );
1365 fprintf( outfile,
1366 "int main( int argc, char *argv[] )\n"
1367 "{\n"
1368 " extern void PROCESS_InitWinelib( int, char ** );\n"
1369 " PROCESS_InitWinelib( argc, argv );\n"
1370 " return 1;\n"
1371 "}\n\n" );
1372 init_func = "exe_main";
1373 break;
1374 case SPEC_MODE_CUIEXE:
1375 if (!init_func) init_func = "wine_main";
1376 fprintf( outfile,
1377 "\n#include <winbase.h>\n"
1378 "static void exe_main(void)\n"
1379 "{\n"
1380 " extern int %s( int argc, char *argv[] );\n"
1381 " extern int _ARGC;\n"
1382 " extern char **_ARGV;\n"
1383 " ExitProcess( %s( _ARGC, _ARGV ) );\n"
1384 "}\n\n", init_func, init_func );
1385 fprintf( outfile,
1386 "int main( int argc, char *argv[] )\n"
1387 "{\n"
1388 " extern void PROCESS_InitWinelib( int, char ** );\n"
1389 " PROCESS_InitWinelib( argc, argv );\n"
1390 " return 1;\n"
1391 "}\n\n" );
1392 init_func = "exe_main";
1393 break;
1394 }
1395
1396 /* Output the DLL descriptor */
1397
1398 if (rsrc_name[0]) fprintf( outfile, "extern char %s[];\n\n", rsrc_name );
1399
1400 fprintf( outfile, "static const BUILTIN32_DESCRIPTOR descriptor =\n{\n" );
1401 fprintf( outfile, " \"%s\",\n", DLLFileName );
1402 fprintf( outfile, " %d,\n", nb_imports );
1403 fprintf( outfile, " pe_header,\n" );
1404 fprintf( outfile, " %s,\n", nr_exports ? "&exports" : "0" );
1405 fprintf( outfile, " %s,\n", nr_exports ? "sizeof(exports.exp)" : "0" );
1406 fprintf( outfile, " %s,\n", nb_imports ? "Imports" : "0" );
1407 fprintf( outfile, " %s,\n", init_func ? init_func : "0" );
1408 fprintf( outfile, " %d,\n", SpecMode == SPEC_MODE_DLL ? IMAGE_FILE_DLL : 0 );
1409 fprintf( outfile, " %s\n", rsrc_name[0] ? rsrc_name : "0" );
1410 fprintf( outfile, "};\n" );
1411
1412 /* Output the DLL constructor */
1413
1414 fprintf( outfile, "#ifdef __GNUC__\n" );
1415 fprintf( outfile, "static void %s_init(void) __attribute__((constructor));\n", DLLName );
1416 fprintf( outfile, "#else /* defined(__GNUC__) */\n" );
1417 fprintf( outfile, "static void __asm__dummy_dll_init(void) {\n" );
1418 fprintf( outfile, "asm(\"\\t.section\t.init ,\\\"ax\\\"\\n\"\n" );
1419 fprintf( outfile, " \"\\tcall %s_init\\n\"\n", DLLName );
1420 fprintf( outfile, " \"\\t.previous\\n\");\n" );
1421 fprintf( outfile, "}\n" );
1422 fprintf( outfile, "#endif /* defined(__GNUC__) */\n" );
1423 fprintf( outfile, "static void %s_init(void) { BUILTIN32_RegisterDLL( &descriptor ); }\n",
1424 DLLName );
1425
1426 return 0;
1427 }
1428
1429 /*******************************************************************
1430 * Spec16TypeCompare
1431 */
1432 static int Spec16TypeCompare( const void *e1, const void *e2 )
1433 {
1434 const ORDDEF *odp1 = *(const ORDDEF **)e1;
1435 const ORDDEF *odp2 = *(const ORDDEF **)e2;
1436
1437 int type1 = (odp1->type == TYPE_CDECL) ? 0
1438 : (odp1->type == TYPE_REGISTER) ? 3
1439 : (odp1->type == TYPE_INTERRUPT) ? 4
1440 : (odp1->type == TYPE_PASCAL_16) ? 1 : 2;
1441
1442 int type2 = (odp2->type == TYPE_CDECL) ? 0
1443 : (odp2->type == TYPE_REGISTER) ? 3
1444 : (odp2->type == TYPE_INTERRUPT) ? 4
1445 : (odp2->type == TYPE_PASCAL_16) ? 1 : 2;
1446
1447 int retval = type1 - type2;
1448 if ( !retval )
1449 retval = strcmp( odp1->u.func.arg_types, odp2->u.func.arg_types );
1450
1451 return retval;
1452 }
1453
1454 /*******************************************************************
1455 * BuildSpec16File
1456 *
1457 * Build a Win16 assembly file from a spec file.
1458 */
1459 static int BuildSpec16File( FILE *outfile )
1460 {
1461 ORDDEF **type, **typelist;
1462 int i, nFuncs, nTypes;
1463 int code_offset, data_offset, module_size;
1464 unsigned char *data;
1465
1466 /* File header */
1467
1468 fprintf( outfile, "/* File generated automatically from %s; do not edit! */\n\n",
1469 input_file_name );
1470 fprintf( outfile, "#define __FLATCS__ 0x%04x\n", Code_Selector );
1471 fprintf( outfile, "#include \"builtin16.h\"\n\n" );
1472
1473 data = (unsigned char *)xmalloc( 0x10000 );
1474 memset( data, 0, 16 );
1475 data_offset = 16;
1476 strupper( DLLName );
1477
1478 /* Build sorted list of all argument types, without duplicates */
1479
1480 typelist = (ORDDEF **)calloc( Limit+1, sizeof(ORDDEF *) );
1481
1482 for (i = nFuncs = 0; i <= Limit; i++)
1483 {
1484 ORDDEF *odp = Ordinals[i];
1485 if (!odp) continue;
1486 switch (odp->type)
1487 {
1488 case TYPE_REGISTER:
1489 case TYPE_INTERRUPT:
1490 case TYPE_CDECL:
1491 case TYPE_PASCAL:
1492 case TYPE_PASCAL_16:
1493 case TYPE_STUB:
1494 typelist[nFuncs++] = odp;
1495
1496 default:
1497 break;
1498 }
1499 }
1500
1501 qsort( typelist, nFuncs, sizeof(ORDDEF *), Spec16TypeCompare );
1502
1503 i = nTypes = 0;
1504 while ( i < nFuncs )
1505 {
1506 typelist[nTypes++] = typelist[i++];
1507 while ( i < nFuncs && Spec16TypeCompare( typelist + i, typelist + nTypes-1 ) == 0 )
1508 i++;
1509 }
1510
1511 /* Output CallFrom16 routines needed by this .spec file */
1512
1513 for ( i = 0; i < nTypes; i++ )
1514 {
1515 char profile[101];
1516
1517 sprintf( profile, "%s_%s_%s",
1518 (typelist[i]->type == TYPE_CDECL) ? "c" : "p",
1519 (typelist[i]->type == TYPE_REGISTER) ? "regs" :
1520 (typelist[i]->type == TYPE_INTERRUPT) ? "intr" :
1521 (typelist[i]->type == TYPE_PASCAL_16) ? "word" : "long",
1522 typelist[i]->u.func.arg_types );
1523
1524 BuildCallFrom16Func( outfile, profile, DLLName, TRUE );
1525 }
1526
1527 /* Output the DLL functions prototypes */
1528
1529 for (i = 0; i <= Limit; i++)
1530 {
1531 ORDDEF *odp = Ordinals[i];
1532 if (!odp) continue;
1533 switch(odp->type)
1534 {
1535 case TYPE_REGISTER:
1536 case TYPE_INTERRUPT:
1537 case TYPE_CDECL:
1538 case TYPE_PASCAL:
1539 case TYPE_PASCAL_16:
1540 fprintf( outfile, "extern void %s();\n", odp->u.func.link_name );
1541 break;
1542 default:
1543 break;
1544 }
1545 }
1546
1547 /* Output code segment */
1548
1549 fprintf( outfile, "\nstatic struct\n{\n CALLFROM16 call[%d];\n"
1550 " ENTRYPOINT16 entry[%d];\n} Code_Segment = \n{\n {\n",
1551 nTypes, nFuncs );
1552 code_offset = 0;
1553
1554 for ( i = 0; i < nTypes; i++ )
1555 {
1556 char profile[101], *arg;
1557 int argsize = 0;
1558
1559 sprintf( profile, "%s_%s_%s",
1560 (typelist[i]->type == TYPE_CDECL) ? "c" : "p",
1561 (typelist[i]->type == TYPE_REGISTER) ? "regs" :
1562 (typelist[i]->type == TYPE_INTERRUPT) ? "intr" :
1563 (typelist[i]->type == TYPE_PASCAL_16) ? "word" : "long",
1564 typelist[i]->u.func.arg_types );
1565
1566 if ( typelist[i]->type != TYPE_CDECL )
1567 for ( arg = typelist[i]->u.func.arg_types; *arg; arg++ )
1568 switch ( *arg )
1569 {
1570 case 'w': /* word */
1571 case 's': /* s_word */
1572 argsize += 2;
1573 break;
1574
1575 case 'l': /* long or segmented pointer */
1576 case 'T': /* segmented pointer to null-terminated string */
1577 case 'p': /* linear pointer */
1578 case 't': /* linear pointer to null-terminated string */
1579 argsize += 4;
1580 break;
1581 }
1582
1583 if ( typelist[i]->type == TYPE_INTERRUPT )
1584 argsize += 2;
1585
1586 fprintf( outfile, " CF16_%s( %s_CallFrom16_%s, %d, \"%s\" ),\n",
1587 ( typelist[i]->type == TYPE_REGISTER
1588 || typelist[i]->type == TYPE_INTERRUPT)? "REGS":
1589 typelist[i]->type == TYPE_PASCAL_16? "WORD" : "LONG",
1590 DLLName, profile, argsize, profile );
1591
1592 code_offset += sizeof(CALLFROM16);
1593 }
1594 fprintf( outfile, " },\n {\n" );
1595
1596 for (i = 0; i <= Limit; i++)
1597 {
1598 ORDDEF *odp = Ordinals[i];
1599 if (!odp) continue;
1600 switch (odp->type)
1601 {
1602 case TYPE_ABS:
1603 odp->offset = LOWORD(odp->u.abs.value);
1604 break;
1605
1606 case TYPE_BYTE:
1607 odp->offset = data_offset;
1608 data_offset += StoreVariableCode( data + data_offset, 1, odp);
1609 break;
1610
1611 case TYPE_WORD:
1612 odp->offset = data_offset;
1613 data_offset += StoreVariableCode( data + data_offset, 2, odp);
1614 break;
1615
1616 case TYPE_LONG:
1617 odp->offset = data_offset;
1618 data_offset += StoreVariableCode( data + data_offset, 4, odp);
1619 break;
1620
1621 case TYPE_REGISTER:
1622 case TYPE_INTERRUPT:
1623 case TYPE_CDECL:
1624 case TYPE_PASCAL:
1625 case TYPE_PASCAL_16:
1626 case TYPE_STUB:
1627 type = bsearch( &odp, typelist, nTypes, sizeof(ORDDEF *), Spec16TypeCompare );
1628 assert( type );
1629
1630 fprintf( outfile, " /* %s.%d */ ", DLLName, i );
1631 fprintf( outfile, "EP( %s, %d /* %s_%s_%s */ ),\n",
1632 odp->u.func.link_name,
1633 (type-typelist)*sizeof(CALLFROM16) -
1634 (code_offset + sizeof(ENTRYPOINT16)),
1635 (odp->type == TYPE_CDECL) ? "c" : "p",
1636 (odp->type == TYPE_REGISTER) ? "regs" :
1637 (odp->type == TYPE_INTERRUPT) ? "intr" :
1638 (odp->type == TYPE_PASCAL_16) ? "word" : "long",
1639 odp->u.func.arg_types );
1640
1641 odp->offset = code_offset;
1642 code_offset += sizeof(ENTRYPOINT16);
1643 break;
1644
1645 default:
1646 fprintf(stderr,"build: function type %d not available for Win16\n",
1647 odp->type);
1648 return -1;
1649 }
1650 }
1651
1652 fprintf( outfile, " }\n};\n" );
1653
1654 /* Output data segment */
1655
1656 DumpBytes( outfile, data, data_offset, "Data_Segment" );
1657
1658 /* Build the module */
1659
1660 module_size = BuildModule16( outfile, code_offset, data_offset );
1661
1662 /* Output the DLL descriptor */
1663
1664 if (rsrc_name[0]) fprintf( outfile, "extern const char %s[];\n\n", rsrc_name );
1665
1666 fprintf( outfile, "\nstatic const BUILTIN16_DESCRIPTOR descriptor = \n{\n" );
1667 fprintf( outfile, " \"%s\",\n", DLLName );
1668 fprintf( outfile, " Module,\n" );
1669 fprintf( outfile, " sizeof(Module),\n" );
1670 fprintf( outfile, " (BYTE *)&Code_Segment,\n" );
1671 fprintf( outfile, " (BYTE *)Data_Segment,\n" );
1672 fprintf( outfile, " %s\n", rsrc_name[0] ? rsrc_name : "0" );
1673 fprintf( outfile, "};\n" );
1674
1675 /* Output the DLL constructor */
1676
1677 fprintf( outfile, "#ifdef __GNUC__\n" );
1678 fprintf( outfile, "static void %s_init(void) __attribute__((constructor));\n", DLLName );
1679 fprintf( outfile, "#else /* defined(__GNUC__) */\n" );
1680 fprintf( outfile, "static void __asm__dummy_dll_init(void) {\n" );
1681 fprintf( outfile, "asm(\"\\t.section\t.init ,\\\"ax\\\"\\n\"\n" );
1682 fprintf( outfile, " \"\\tcall %s_init\\n\"\n", DLLName );
1683 fprintf( outfile, " \"\\t.previous\\n\");\n" );
1684 fprintf( outfile, "}\n" );
1685 fprintf( outfile, "#endif /* defined(__GNUC__) */\n" );
1686 fprintf( outfile, "static void %s_init(void) { BUILTIN_RegisterDLL( &descriptor ); }\n",
1687 DLLName );
1688
1689 return 0;
1690 }
1691
1692
1693 /*******************************************************************
1694 * BuildSpecFile
1695 *
1696 * Build an assembly file from a spec file.
1697 */
1698 static void BuildSpecFile( FILE *outfile, FILE *infile )
1699 {
1700 SpecFp = infile;
1701 ParseTopLevel();
1702
1703 switch(SpecType)
1704 {
1705 case SPEC_WIN16:
1706 BuildSpec16File( outfile );
1707 break;
1708 case SPEC_WIN32:
1709 BuildSpec32File( outfile );
1710 break;
1711 default:
1712 fatal_error( "Missing 'type' declaration\n" );
1713 }
1714 }
1715
1716
1717 /*******************************************************************
1718 * BuildCallFrom16Func
1719 *
1720 * Build a 16-bit-to-Wine callback glue function.
1721 *
1722 * The generated routines are intended to be used as argument conversion
1723 * routines to be called by the CallFrom16... core. Thus, the prototypes of
1724 * the generated routines are (see also CallFrom16):
1725 *
1726 * extern WORD WINAPI PREFIX_CallFrom16_C_word_xxx( FARPROC func, LPBYTE args );
1727 * extern LONG WINAPI PREFIX_CallFrom16_C_long_xxx( FARPROC func, LPBYTE args );
1728 * extern void WINAPI PREFIX_CallFrom16_C_regs_xxx( FARPROC func, LPBYTE args,
1729 * CONTEXT86 *context );
1730 * extern void WINAPI PREFIX_CallFrom16_C_intr_xxx( FARPROC func, LPBYTE args,
1731 * CONTEXT86 *context );
1732 *
1733 * where 'C' is the calling convention ('p' for pascal or 'c' for cdecl),
1734 * and each 'x' is an argument ('w'=word, 's'=signed word, 'l'=long,
1735 * 'p'=linear pointer, 't'=linear pointer to null-terminated string,
1736 * 'T'=segmented pointer to null-terminated string).
1737 *
1738 * The generated routines fetch the arguments from the 16-bit stack (pointed
1739 * to by 'args'); the offsets of the single argument values are computed
1740 * according to the calling convention and the argument types. Then, the
1741 * 32-bit entry point is called with these arguments.
1742 *
1743 * For register functions, the arguments (if present) are converted just
1744 * the same as for normal functions, but in addition the CONTEXT86 pointer
1745 * filled with the current register values is passed to the 32-bit routine.
1746 * (An 'intr' interrupt handler routine is treated exactly like a register
1747 * routine, except that upon return, the flags word pushed onto the stack
1748 * by the interrupt is removed by the 16-bit call stub.)
1749 *
1750 */
1751 static void BuildCallFrom16Func( FILE *outfile, char *profile, char *prefix, int local )
1752 {
1753 int i, pos, argsize = 0;
1754 int short_ret = 0;
1755 int reg_func = 0;
1756 int usecdecl = 0;
1757 char *args = profile + 7;
1758 char *ret_type;
1759
1760 /* Parse function type */
1761
1762 if (!strncmp( "c_", profile, 2 )) usecdecl = 1;
1763 else if (strncmp( "p_", profile, 2 ))
1764 {
1765 fprintf( stderr, "Invalid function name '%s', ignored\n", profile );
1766 return;
1767 }
1768
1769 if (!strncmp( "word_", profile + 2, 5 )) short_ret = 1;
1770 else if (!strncmp( "regs_", profile + 2, 5 )) reg_func = 1;
1771 else if (!strncmp( "intr_", profile + 2, 5 )) reg_func = 2;
1772 else if (strncmp( "long_", profile + 2, 5 ))
1773 {
1774 fprintf( stderr, "Invalid function name '%s', ignored\n", profile );
1775 return;
1776 }
1777
1778 for ( i = 0; args[i]; i++ )
1779 switch ( args[i] )
1780 {
1781 case 'w': /* word */
1782 case 's': /* s_word */
1783 argsize += 2;
1784 break;
1785
1786 case 'l': /* long or segmented pointer */
1787 case 'T': /* segmented pointer to null-terminated string */
1788 case 'p': /* linear pointer */
1789 case 't': /* linear pointer to null-terminated string */
1790 argsize += 4;
1791 break;
1792 }
1793
1794 ret_type = reg_func? "void" : short_ret? "WORD" : "LONG";
1795
1796 fprintf( outfile, "typedef %s WINAPI (*proc_%s_t)( ",
1797 ret_type, profile );
1798 args = profile + 7;
1799 for ( i = 0; args[i]; i++ )
1800 {
1801 if ( i ) fprintf( outfile, ", " );
1802 switch (args[i])
1803 {
1804 case 'w': fprintf( outfile, "WORD" ); break;
1805 case 's': fprintf( outfile, "INT16" ); break;
1806 case 'l': case 'T': fprintf( outfile, "LONG" ); break;
1807 case 'p': case 't': fprintf( outfile, "LPVOID" ); break;
1808 }
1809 }
1810 if ( reg_func )
1811 fprintf( outfile, "%sstruct _CONTEXT86 *", i? ", " : "" );
1812 else if ( !i )
1813 fprintf( outfile, "void" );
1814 fprintf( outfile, " );\n" );
1815
1816 fprintf( outfile, "%s%s WINAPI %s_CallFrom16_%s( FARPROC proc, LPBYTE args%s )\n{\n",
1817 local? "static " : "", ret_type, prefix, profile,
1818 reg_func? ", struct _CONTEXT86 *context" : "" );
1819
1820 fprintf( outfile, " %s((proc_%s_t) proc) (\n",
1821 reg_func? "" : "return ", profile );
1822 args = profile + 7;
1823 pos = !usecdecl? argsize : 0;
1824 for ( i = 0; args[i]; i++ )
1825 {
1826 if ( i ) fprintf( outfile, ",\n" );
1827 fprintf( outfile, " " );
1828 switch (args[i])
1829 {
1830 case 'w': /* word */
1831 if ( !usecdecl ) pos -= 2;
1832 fprintf( outfile, "*(WORD *)(args+%d)", pos );
1833 if ( usecdecl ) pos += 2;
1834 break;
1835
1836 case 's': /* s_word */
1837 if ( !usecdecl ) pos -= 2;
1838 fprintf( outfile, "*(INT16 *)(args+%d)", pos );
1839 if ( usecdecl ) pos += 2;
1840 break;
1841
1842 case 'l': /* long or segmented pointer */
1843 case 'T': /* segmented pointer to null-terminated string */
1844 if ( !usecdecl ) pos -= 4;
1845 fprintf( outfile, "*(LONG *)(args+%d)", pos );
1846 if ( usecdecl ) pos += 4;
1847 break;
1848
1849 case 'p': /* linear pointer */
1850 case 't': /* linear pointer to null-terminated string */
1851 if ( !usecdecl ) pos -= 4;
1852 fprintf( outfile, "PTR_SEG_TO_LIN( *(SEGPTR *)(args+%d) )", pos );
1853 if ( usecdecl ) pos += 4;
1854 break;
1855
1856 default:
1857 fprintf( stderr, "Unknown arg type '%c'\n", args[i] );
1858 }
1859 }
1860 if ( reg_func )
1861 fprintf( outfile, "%s context", i? ",\n" : "" );
1862 fprintf( outfile, " );\n}\n\n" );
1863 }
1864
1865 /*******************************************************************
1866 * BuildCallTo16Func
1867 *
1868 * Build a Wine-to-16-bit callback glue function.
1869 *
1870 * Prototypes for the CallTo16 functions:
1871 * extern WORD CALLBACK PREFIX_CallTo16_word_xxx( FARPROC16 func, args... );
1872 * extern LONG CALLBACK PREFIX_CallTo16_long_xxx( FARPROC16 func, args... );
1873 *
1874 * These routines are provided solely for convenience; they simply
1875 * write the arguments onto the 16-bit stack, and call the appropriate
1876 * CallTo16... core routine.
1877 *
1878 * If you have more sophisticated argument conversion requirements than
1879 * are provided by these routines, you might as well call the core
1880 * routines by yourself.
1881 *
1882 */
1883 static void BuildCallTo16Func( FILE *outfile, char *profile, char *prefix )
1884 {
1885 char *args = profile + 5;
1886 int i, argsize = 0, short_ret = 0;
1887
1888 if (!strncmp( "word_", profile, 5 )) short_ret = 1;
1889 else if (strncmp( "long_", profile, 5 ))
1890 {
1891 fprintf( stderr, "Invalid function name '%s'.\n", profile );
1892 exit(1);
1893 }
1894
1895 fprintf( outfile, "%s %s_CallTo16_%s( FARPROC16 proc",
1896 short_ret? "WORD" : "LONG", prefix, profile );
1897 args = profile + 5;
1898 for ( i = 0; args[i]; i++ )
1899 {
1900 fprintf( outfile, ", " );
1901 switch (args[i])
1902 {
1903 case 'w': fprintf( outfile, "WORD" ); argsize += 2; break;
1904 case 'l': fprintf( outfile, "LONG" ); argsize += 4; break;
1905 }
1906 fprintf( outfile, " arg%d", i+1 );
1907 }
1908 fprintf( outfile, " )\n{\n" );
1909
1910 if ( argsize > 0 )
1911 fprintf( outfile, " LPBYTE args = (LPBYTE)CURRENT_STACK16;\n" );
1912
1913 args = profile + 5;
1914 for ( i = 0; args[i]; i++ )
1915 {
1916 switch (args[i])
1917 {
1918 case 'w': fprintf( outfile, " args -= sizeof(WORD); *(WORD" ); break;
1919 case 'l': fprintf( outfile, " args -= sizeof(LONG); *(LONG" ); break;
1920 default: fprintf( stderr, "Unexpected case '%c' in BuildCallTo16Func\n",
1921 args[i] );
1922 }
1923 fprintf( outfile, " *)args = arg%d;\n", i+1 );
1924 }
1925
1926 fprintf( outfile, " return CallTo16%s( proc, %d );\n}\n\n",
1927 short_ret? "Word" : "Long", argsize );
1928 }
1929
1930
1931
1932 /*******************************************************************
1933 * BuildCallFrom16Core
1934 *
1935 * This routine builds the core routines used in 16->32 thunks:
1936 * CallFrom16Word, CallFrom16Long, CallFrom16Register, and CallFrom16Thunk.
1937 *
1938 * These routines are intended to be called via a far call (with 32-bit
1939 * operand size) from 16-bit code. The 16-bit code stub must push %bp,
1940 * the 32-bit entry point to be called, and the argument conversion
1941 * routine to be used (see stack layout below).
1942 *
1943 * The core routine completes the STACK16FRAME on the 16-bit stack and
1944 * switches to the 32-bit stack. Then, the argument conversion routine
1945 * is called; it gets passed the 32-bit entry point and a pointer to the
1946 * 16-bit arguments (on the 16-bit stack) as parameters. (You can either
1947 * use conversion routines automatically generated by BuildCallFrom16,
1948 * or write your own for special purposes.)
1949 *
1950 * The conversion routine must call the 32-bit entry point, passing it
1951 * the converted arguments, and return its return value to the core.
1952 * After the conversion routine has returned, the core switches back
1953 * to the 16-bit stack, converts the return value to the DX:AX format
1954 * (CallFrom16Long), and returns to the 16-bit call stub. All parameters,
1955 * including %bp, are popped off the stack.
1956 *
1957 * The 16-bit call stub now returns to the caller, popping the 16-bit
1958 * arguments if necessary (pascal calling convention).
1959 *
1960 * In the case of a 'register' function, CallFrom16Register fills a
1961 * CONTEXT86 structure with the values all registers had at the point
1962 * the first instruction of the 16-bit call stub was about to be
1963 * executed. A pointer to this CONTEXT86 is passed as third parameter
1964 * to the argument conversion routine, which typically passes it on
1965 * to the called 32-bit entry point.
1966 *
1967 * CallFrom16Thunk is a special variant used by the implementation of
1968 * the Win95 16->32 thunk functions C16ThkSL and C16ThkSL01 and is
1969 * implemented as follows:
1970 * On entry, the EBX register is set up to contain a flat pointer to the
1971 * 16-bit stack such that EBX+22 points to the first argument.
1972 * Then, the entry point is called, while EBP is set up to point
1973 * to the return address (on the 32-bit stack).
1974 * The called function returns with CX set to the number of bytes
1975 * to be popped of the caller's stack.
1976 *
1977 * Stack layout upon entry to the core routine (STACK16FRAME):
1978 * ... ...
1979 * (sp+24) word first 16-bit arg
1980 * (sp+22) word cs
1981 * (sp+20) word ip
1982 * (sp+18) word bp
1983 * (sp+14) long 32-bit entry point (reused for Win16 mutex recursion count)
1984 * (sp+12) word ip of actual entry point (necessary for relay debugging)
1985 * (sp+8) long relay (argument conversion) function entry point
1986 * (sp+4) long cs of 16-bit entry point
1987 * (sp) long ip of 16-bit entry point
1988 *
1989 * Added on the stack:
1990 * (sp-2) word saved gs
1991 * (sp-4) word saved fs
1992 * (sp-6) word saved es
1993 * (sp-8) word saved ds
1994 * (sp-12) long saved ebp
1995 * (sp-16) long saved ecx
1996 * (sp-20) long saved edx
1997 * (sp-24) long saved previous stack
1998 */
1999 static void BuildCallFrom16Core( FILE *outfile, int reg_func, int thunk, int short_ret )
2000 {
2001 char *name = thunk? "Thunk" : reg_func? "Register" : short_ret? "Word" : "Long";
2002
2003 /* Function header */
2004 fprintf( outfile, "\n\t.align 4\n" );
2005 #ifdef USE_STABS
2006 fprintf( outfile, ".stabs \"CallFrom16%s:F1\",36,0,0," PREFIX "CallFrom16%s\n",
2007 name, name);
2008 #endif
2009 fprintf( outfile, "\t.type " PREFIX "CallFrom16%s,@function\n", name );
2010 fprintf( outfile, "\t.globl " PREFIX "CallFrom16%s\n", name );
2011 fprintf( outfile, PREFIX "CallFrom16%s:\n", name );
2012
2013 /* Create STACK16FRAME (except STACK32FRAME link) */
2014 fprintf( outfile, "\tpushw %%gs\n" );
2015 fprintf( outfile, "\tpushw %%fs\n" );
2016 fprintf( outfile, "\tpushw %%es\n" );
2017 fprintf( outfile, "\tpushw %%ds\n" );
2018 fprintf( outfile, "\tpushl %%ebp\n" );
2019 fprintf( outfile, "\tpushl %%ecx\n" );
2020 fprintf( outfile, "\tpushl %%edx\n" );
2021
2022 /* Save original EFlags register */
2023 fprintf( outfile, "\tpushfl\n" );
2024
2025 if ( UsePIC )
2026 {
2027 /* Get Global Offset Table into %ecx */
2028 fprintf( outfile, "\tcall .LCallFrom16%s.getgot1\n", name );
2029 fprintf( outfile, ".LCallFrom16%s.getgot1:\n", name );
2030 fprintf( outfile, "\tpopl %%ecx\n" );
2031 fprintf( outfile, "\taddl $_GLOBAL_OFFSET_TABLE_+[.-.LCallFrom16%s.getgot1], %%ecx\n", name );
2032 }
2033
2034 /* Load 32-bit segment registers */
2035 fprintf( outfile, "\tmovw $0x%04x, %%dx\n", Data_Selector );
2036 #ifdef __svr4__
2037 fprintf( outfile, "\tdata16\n");
2038 #endif
2039 fprintf( outfile, "\tmovw %%dx, %%ds\n" );
2040 #ifdef __svr4__
2041 fprintf( outfile, "\tdata16\n");
2042 #endif
2043 fprintf( outfile, "\tmovw %%dx, %%es\n" );
2044
2045 if ( UsePIC )
2046 {
2047 fprintf( outfile, "\tmovl " PREFIX "SYSLEVEL_Win16CurrentTeb@GOT(%%ecx), %%edx\n" );
2048 fprintf( outfile, "\tmovw (%%edx), %%fs\n" );
2049 }
2050 else
2051 fprintf( outfile, "\tmovw " PREFIX "SYSLEVEL_Win16CurrentTeb, %%fs\n" );
2052
2053 /* Get address of ldt_copy array into %ecx */
2054 if ( UsePIC )
2055 fprintf( outfile, "\tmovl " PREFIX "ldt_copy@GOT(%%ecx), %%ecx\n" );
2056 else
2057 fprintf( outfile, "\tmovl $" PREFIX "ldt_copy, %%ecx\n" );
2058
2059 /* Translate STACK16FRAME base to flat offset in %edx */
2060 fprintf( outfile, "\tmovw %%ss, %%dx\n" );
2061 fprintf( outfile, "\tandl $0xfff8, %%edx\n" );
2062 fprintf( outfile, "\tmovl (%%ecx,%%edx), %%edx\n" );
2063 fprintf( outfile, "\tmovzwl %%sp, %%ebp\n" );
2064 fprintf( outfile, "\tleal (%%ebp,%%edx), %%edx\n" );
2065
2066 /* Get saved flags into %ecx */
2067 fprintf( outfile, "\tpopl %%ecx\n" );
2068
2069 /* Get the 32-bit stack pointer from the TEB and complete STACK16FRAME */
2070 fprintf( outfile, "\t.byte 0x64\n\tmovl (%d), %%ebp\n", STACKOFFSET );
2071 fprintf( outfile, "\tpushl %%ebp\n" );
2072
2073 /* Switch stacks */
2074 #ifdef __svr4__
2075 fprintf( outfile,"\tdata16\n");
2076 #endif
2077 fprintf( outfile, "\t.byte 0x64\n\tmovw %%ss, (%d)\n", STACKOFFSET + 2 );
2078 fprintf( outfile, "\t.byte 0x64\n\tmovw %%sp, (%d)\n", STACKOFFSET );
2079 fprintf( outfile, "\tpushl %%ds\n" );
2080 fprintf( outfile, "\tpopl %%ss\n" );
2081 fprintf( outfile, "\tmovl %%ebp, %%esp\n" );
2082 fprintf( outfile, "\taddl $%d, %%ebp\n", STRUCTOFFSET(STACK32FRAME, ebp) );
2083
2084
2085 /* At this point:
2086 STACK16FRAME is completely set up
2087 DS, ES, SS: flat data segment
2088 FS: current TEB
2089 ESP: points to last STACK32FRAME
2090 EBP: points to ebp member of last STACK32FRAME
2091 EDX: points to current STACK16FRAME
2092 ECX: contains saved flags
2093 all other registers: unchanged */
2094
2095 /* Special case: C16ThkSL stub */
2096 if ( thunk )
2097 {
2098 /* Set up registers as expected and call thunk */
2099 fprintf( outfile, "\tleal %d(%%edx), %%ebx\n", sizeof(STACK16FRAME)-22 );
2100 fprintf( outfile, "\tleal -4(%%esp), %%ebp\n" );
2101
2102 fprintf( outfile, "\tcall *%d(%%edx)\n", STACK16OFFSET(entry_point) );
2103
2104 /* Switch stack back */
2105 /* fprintf( outfile, "\t.byte 0x64\n\tlssw (%d), %%sp\n", STACKOFFSET ); */
2106 fprintf( outfile, "\t.byte 0x64,0x66,0x0f,0xb2,0x25\n\t.long %d\n", STACKOFFSET );
2107 fprintf( outfile, "\t.byte 0x64\n\tpopl (%d)\n", STACKOFFSET );
2108
2109 /* Restore registers and return directly to caller */
2110 fprintf( outfile, "\taddl $8, %%esp\n" );
2111 fprintf( outfile, "\tpopl %%ebp\n" );
2112 fprintf( outfile, "\tpopw %%ds\n" );
2113 fprintf( outfile, "\tpopw %%es\n" );
2114 fprintf( outfile, "\tpopw %%fs\n" );
2115 fprintf( outfile, "\tpopw %%gs\n" );
2116 fprintf( outfile, "\taddl $20, %%esp\n" );
2117
2118 fprintf( outfile, "\txorb %%ch, %%ch\n" );
2119 fprintf( outfile, "\tpopl %%ebx\n" );
2120 fprintf( outfile, "\taddw %%cx, %%sp\n" );
2121 fprintf( outfile, "\tpush %%ebx\n" );
2122
2123 fprintf( outfile, "\t.byte 0x66\n" );
2124 fprintf( outfile, "\tlret\n" );
2125
2126 return;
2127 }
2128
2129
2130 /* Build register CONTEXT */
2131 if ( reg_func )
2132 {
2133 fprintf( outfile, "\tsubl $%d, %%esp\n", sizeof(CONTEXT86) );
2134
2135 fprintf( outfile, "\tmovl %%ecx, %d(%%esp)\n", CONTEXTOFFSET(EFlags) );
2136
2137 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(Eax) );
2138 fprintf( outfile, "\tmovl %%ebx, %d(%%esp)\n", CONTEXTOFFSET(Ebx) );
2139 fprintf( outfile, "\tmovl %%esi, %d(%%esp)\n", CONTEXTOFFSET(Esi) );
2140 fprintf( outfile, "\tmovl %%edi, %d(%%esp)\n", CONTEXTOFFSET(Edi) );
2141
2142 fprintf( outfile, "\tmovl %d(%%edx), %%eax\n", STACK16OFFSET(ebp) );
2143 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(Ebp) );
2144 fprintf( outfile, "\tmovl %d(%%edx), %%eax\n", STACK16OFFSET(ecx) );
2145 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(Ecx) );
2146 fprintf( outfile, "\tmovl %d(%%edx), %%eax\n", STACK16OFFSET(edx) );
2147 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(Edx) );
2148
2149 fprintf( outfile, "\tmovzwl %d(%%edx), %%eax\n", STACK16OFFSET(ds) );
2150 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(SegDs) );
2151 fprintf( outfile, "\tmovzwl %d(%%edx), %%eax\n", STACK16OFFSET(es) );
2152 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(SegEs) );
2153 fprintf( outfile, "\tmovzwl %d(%%edx), %%eax\n", STACK16OFFSET(fs) );
2154 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(SegFs) );
2155 fprintf( outfile, "\tmovzwl %d(%%edx), %%eax\n", STACK16OFFSET(gs) );
2156 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(SegGs) );
2157
2158 fprintf( outfile, "\tmovzwl %d(%%edx), %%eax\n", STACK16OFFSET(cs) );
2159 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(SegCs) );
2160 fprintf( outfile, "\tmovzwl %d(%%edx), %%eax\n", STACK16OFFSET(ip) );
2161 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(Eip) );
2162
2163 fprintf( outfile, "\t.byte 0x64\n\tmovzwl (%d), %%eax\n", STACKOFFSET+2 );
2164 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(SegSs) );
2165 fprintf( outfile, "\t.byte 0x64\n\tmovzwl (%d), %%eax\n", STACKOFFSET );
2166 fprintf( outfile, "\taddl $%d, %%eax\n", STACK16OFFSET(ip) );
2167 fprintf( outfile, "\tmovl %%eax, %d(%%esp)\n", CONTEXTOFFSET(Esp) );
2168 #if 0
2169 fprintf( outfile, "\tfsave %d(%%esp)\n", CONTEXTOFFSET(FloatSave) );
2170 #endif
2171
2172 /* Push address of CONTEXT86 structure -- popped by the relay routine */
2173 fprintf( outfile, "\tpushl %%esp\n" );
2174 }
2175
2176
2177 /* Print debug info before call */
2178 if ( debugging )
2179 {
2180 if ( UsePIC )
2181 {
2182 fprintf( outfile, "\tpushl %%ebx\n" );
2183
2184 /* Get Global Offset Table into %ebx (for PLT call) */
2185 fprintf( outfile, "\tcall .LCallFrom16%s.getgot2\n", name );
2186 fprintf( outfile, ".LCallFrom16%s.getgot2:\n", name );
2187 fprintf( outfile, "\tpopl %%ebx\n" );
2188 fprintf( outfile, "\taddl $_GLOBAL_OFFSET_TABLE_+[.-.LCallFrom16%s.getgot2], %%ebx\n", name );
2189 }
2190
2191 fprintf( outfile, "\tpushl %%edx\n" );
2192 if ( reg_func )
2193 fprintf( outfile, "\tleal -%d(%%ebp), %%eax\n\tpushl %%eax\n",
2194 sizeof(CONTEXT) + STRUCTOFFSET(STACK32FRAME, ebp) );
2195 else
2196 fprintf( outfile, "\tpushl $0\n" );
2197
2198 if ( UsePIC )
2199 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallFrom16@PLT\n ");
2200 else
2201 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallFrom16\n ");
2202
2203 fprintf( outfile, "\tpopl %%edx\n" );
2204 fprintf( outfile, "\tpopl %%edx\n" );
2205
2206 if ( UsePIC )
2207 fprintf( outfile, "\tpopl %%ebx\n" );
2208 }
2209
2210 /* Call relay routine (which will call the API entry point) */
2211 fprintf( outfile, "\tleal %d(%%edx), %%eax\n", sizeof(STACK16FRAME) );
2212 fprintf( outfile, "\tpushl %%eax\n" );
2213 fprintf( outfile, "\tpushl %d(%%edx)\n", STACK16OFFSET(entry_point) );
2214 fprintf( outfile, "\tcall *%d(%%edx)\n", STACK16OFFSET(relay) );
2215
2216 /* Print debug info after call */
2217 if ( debugging )
2218 {
2219 if ( UsePIC )
2220 {
2221 fprintf( outfile, "\tpushl %%ebx\n" );
2222
2223 /* Get Global Offset Table into %ebx (for PLT call) */
2224 fprintf( outfile, "\tcall .LCallFrom16%s.getgot3\n", name );
2225 fprintf( outfile, ".LCallFrom16%s.getgot3:\n", name );
2226 fprintf( outfile, "\tpopl %%ebx\n" );
2227 fprintf( outfile, "\taddl $_GLOBAL_OFFSET_TABLE_+[.-.LCallFrom16%s.getgot3], %%ebx\n", name );
2228 }
2229
2230 fprintf( outfile, "\tpushl %%eax\n" );
2231 if ( reg_func )
2232 fprintf( outfile, "\tleal -%d(%%ebp), %%eax\n\tpushl %%eax\n",
2233 sizeof(CONTEXT) + STRUCTOFFSET(STACK32FRAME, ebp) );
2234 else
2235 fprintf( outfile, "\tpushl $0\n" );
2236
2237 if ( UsePIC )
2238 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallFrom16Ret@PLT\n ");
2239 else
2240 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallFrom16Ret\n ");
2241
2242 fprintf( outfile, "\tpopl %%eax\n" );
2243 fprintf( outfile, "\tpopl %%eax\n" );
2244
2245 if ( UsePIC )
2246 fprintf( outfile, "\tpopl %%ebx\n" );
2247 }
2248
2249
2250 if ( reg_func )
2251 {
2252 fprintf( outfile, "\tmovl %%esp, %%ebx\n" );
2253
2254 /* Switch stack back */
2255 /* fprintf( outfile, "\t.byte 0x64\n\tlssw (%d), %%sp\n", STACKOFFSET ); */
2256 fprintf( outfile, "\t.byte 0x64,0x66,0x0f,0xb2,0x25\n\t.long %d\n", STACKOFFSET );
2257 fprintf( outfile, "\t.byte 0x64\n\tpopl (%d)\n", STACKOFFSET );
2258
2259 /* Get return address to CallFrom16 stub */
2260 fprintf( outfile, "\taddw $%d, %%sp\n", STACK16OFFSET(callfrom_ip)-4 );
2261 fprintf( outfile, "\tpopl %%eax\n" );
2262 fprintf( outfile, "\tpopl %%edx\n" );
2263
2264 /* Restore all registers from CONTEXT */
2265 fprintf( outfile, "\tmovw %d(%%ebx), %%ss\n", CONTEXTOFFSET(SegSs) );
2266 fprintf( outfile, "\tmovl %d(%%ebx), %%esp\n", CONTEXTOFFSET(Esp) );
2267 fprintf( outfile, "\taddl $4, %%esp\n" ); /* room for final return address */
2268
2269 fprintf( outfile, "\tpushw %d(%%ebx)\n", CONTEXTOFFSET(SegCs) );
2270 fprintf( outfile, "\tpushw %d(%%ebx)\n", CONTEXTOFFSET(Eip) );
2271 fprintf( outfile, "\tpushl %%edx\n" );
2272 fprintf( outfile, "\tpushl %%eax\n" );
2273 fprintf( outfile, "\tpushl %d(%%ebx)\n", CONTEXTOFFSET(EFlags) );
2274 fprintf( outfile, "\tpushl %d(%%ebx)\n", CONTEXTOFFSET(SegDs) );
2275
2276 fprintf( outfile, "\tmovw %d(%%ebx), %%es\n", CONTEXTOFFSET(SegEs) );
2277 fprintf( outfile, "\tmovw %d(%%ebx), %%fs\n", CONTEXTOFFSET(SegFs) );
2278 fprintf( outfile, "\tmovw %d(%%ebx), %%gs\n", CONTEXTOFFSET(SegGs) );
2279
2280 fprintf( outfile, "\tmovl %d(%%ebx), %%ebp\n", CONTEXTOFFSET(Ebp) );
2281 fprintf( outfile, "\tmovl %d(%%ebx), %%esi\n", CONTEXTOFFSET(Esi) );
2282 fprintf( outfile, "\tmovl %d(%%ebx), %%edi\n", CONTEXTOFFSET(Edi) );
2283 fprintf( outfile, "\tmovl %d(%%ebx), %%eax\n", CONTEXTOFFSET(Eax) );
2284 fprintf( outfile, "\tmovl %d(%%ebx), %%edx\n", CONTEXTOFFSET(Edx) );
2285 fprintf( outfile, "\tmovl %d(%%ebx), %%ecx\n", CONTEXTOFFSET(Ecx) );
2286 fprintf( outfile, "\tmovl %d(%%ebx), %%ebx\n", CONTEXTOFFSET(Ebx) );
2287
2288 fprintf( outfile, "\tpopl %%ds\n" );
2289 fprintf( outfile, "\tpopfl\n" );
2290 fprintf( outfile, "\tlret\n" );
2291 }
2292 else
2293 {
2294 /* Switch stack back */
2295 /* fprintf( outfile, "\t.byte 0x64\n\tlssw (%d), %%sp\n", STACKOFFSET ); */
2296 fprintf( outfile, "\t.byte 0x64,0x66,0x0f,0xb2,0x25\n\t.long %d\n", STACKOFFSET );
2297 fprintf( outfile, "\t.byte 0x64\n\tpopl (%d)\n", STACKOFFSET );
2298
2299 /* Restore registers */
2300 fprintf( outfile, "\tpopl %%edx\n" );
2301 fprintf( outfile, "\tpopl %%ecx\n" );
2302 fprintf( outfile, "\tpopl %%ebp\n" );
2303 fprintf( outfile, "\tpopw %%ds\n" );
2304 fprintf( outfile, "\tpopw %%es\n" );
2305 fprintf( outfile, "\tpopw %%fs\n" );
2306 fprintf( outfile, "\tpopw %%gs\n" );
2307
2308 /* Prepare return value and set flags accordingly */
2309 if ( !short_ret )
2310 fprintf( outfile, "\tshldl $16, %%eax, %%edx\n" );
2311 fprintf( outfile, "\torl %%eax, %%eax\n" );
2312
2313 /* Return to return stub which will return to caller */
2314 fprintf( outfile, "\tlret $12\n" );
2315 }
2316 }
2317
2318
2319 /*******************************************************************
2320 * BuildCallTo16Core
2321 *
2322 * This routine builds the core routines used in 32->16 thunks:
2323 *
2324 * extern void CALLBACK CallTo16Word( SEGPTR target, int nb_args );
2325 * extern void CALLBACK CallTo16Long( SEGPTR target, int nb_args );
2326 * extern void CALLBACK CallTo16RegisterShort( const CONTEXT86 *context, int nb_args );
2327 * extern void CALLBACK CallTo16RegisterLong ( const CONTEXT86 *context, int nb_args );
2328 *
2329 * These routines can be called directly from 32-bit code.
2330 *
2331 * All routines expect that the 16-bit stack contents (arguments) were
2332 * already set up by the caller; nb_args must contain the number of bytes
2333 * to be conserved. The 16-bit SS:SP will be set accordinly.
2334 *
2335 * All other registers are either taken from the CONTEXT86 structure
2336 * or else set to default values. The target routine address is either
2337 * given directly or taken from the CONTEXT86.
2338 *
2339 * If you want to call a 16-bit routine taking only standard argument types
2340 * (WORD and LONG), you can also have an appropriate argument conversion
2341 * stub automatically generated (see BuildCallTo16); you'd then call this
2342 * stub, which in turn would prepare the 16-bit stack and call the appropiate
2343 * core routine.
2344 *
2345 */
2346
2347 static void BuildCallTo16Core( FILE *outfile, int short_ret, int reg_func )
2348 {
2349 char *name = reg_func == 2 ? "RegisterLong" :
2350 reg_func == 1 ? "RegisterShort" :
2351 short_ret? "Word" : "Long";
2352
2353 /* Function header */
2354 fprintf( outfile, "\n\t.align 4\n" );
2355 #ifdef USE_STABS
2356 fprintf( outfile, ".stabs \"CallTo16%s:F1\",36,0,0," PREFIX "CallTo16%s\n",
2357 name, name);
2358 #endif
2359 fprintf( outfile, "\t.type " PREFIX "CallTo16%s,@function\n", name );
2360 fprintf( outfile, "\t.globl " PREFIX "CallTo16%s\n", name );
2361 fprintf( outfile, PREFIX "CallTo16%s:\n", name );
2362
2363 /* Function entry sequence */
2364 fprintf( outfile, "\tpushl %%ebp\n" );
2365 fprintf( outfile, "\tmovl %%esp, %%ebp\n" );
2366
2367 /* Save the 32-bit registers */
2368 fprintf( outfile, "\tpushl %%ebx\n" );
2369 fprintf( outfile, "\tpushl %%ecx\n" );
2370 fprintf( outfile, "\tpushl %%edx\n" );
2371 fprintf( outfile, "\tpushl %%esi\n" );
2372 fprintf( outfile, "\tpushl %%edi\n" );
2373
2374 if ( UsePIC )
2375 {
2376 /* Get Global Offset Table into %ebx */
2377 fprintf( outfile, "\tcall .LCallTo16%s.getgot1\n", name );
2378 fprintf( outfile, ".LCallTo16%s.getgot1:\n", name );
2379 fprintf( outfile, "\tpopl %%ebx\n" );
2380 fprintf( outfile, "\taddl $_GLOBAL_OFFSET_TABLE_+[.-.LCallTo16%s.getgot1], %%ebx\n", name );
2381 }
2382
2383 /* Enter Win16 Mutex */
2384 if ( UsePIC )
2385 fprintf( outfile, "\tcall " PREFIX "SYSLEVEL_EnterWin16Lock@PLT\n" );
2386 else
2387 fprintf( outfile, "\tcall " PREFIX "SYSLEVEL_EnterWin16Lock\n" );
2388
2389 /* Print debugging info */
2390 if (debugging)
2391 {
2392 /* Push flags, number of arguments, and target */
2393 fprintf( outfile, "\tpushl $%d\n", reg_func );
2394 fprintf( outfile, "\tpushl 12(%%ebp)\n" );
2395 fprintf( outfile, "\tpushl 8(%%ebp)\n" );
2396
2397 if ( UsePIC )
2398 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallTo16@PLT\n" );
2399 else
2400 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallTo16\n" );
2401
2402 fprintf( outfile, "\taddl $12, %%esp\n" );
2403 }
2404
2405 /* Get return address */
2406 if ( UsePIC )
2407 {
2408 fprintf( outfile, "\tmovl " PREFIX "CallTo16_RetAddr@GOT(%%ebx), %%ecx\n" );
2409 fprintf( outfile, "\tmovl " PREFIX "(%%ecx), %%ecx\n" );
2410 }
2411 else
2412 fprintf( outfile, "\tmovl " PREFIX "CallTo16_RetAddr, %%ecx\n" );
2413
2414 /* Call the actual CallTo16 routine (simulate a lcall) */
2415 fprintf( outfile, "\tpushl %%cs\n" );
2416 fprintf( outfile, "\tcall .LCallTo16%s\n", name );
2417
2418 /* Convert and push return value */
2419 if ( short_ret )
2420 {
2421 fprintf( outfile, "\tmovzwl %%ax, %%eax\n" );
2422 fprintf( outfile, "\tpushl %%eax\n" );
2423 }
2424 else if ( reg_func != 2 )
2425 {
2426 fprintf( outfile, "\tshll $16,%%edx\n" );
2427 fprintf( outfile, "\tmovw %%ax,%%dx\n" );
2428 fprintf( outfile, "\tpushl %%edx\n" );
2429 }
2430 else
2431 fprintf( outfile, "\tpushl %%eax\n" );
2432
2433 if ( UsePIC )
2434 {
2435 /* Get Global Offset Table into %ebx (might have been overwritten) */
2436 fprintf( outfile, "\tcall .LCallTo16%s.getgot2\n", name );
2437 fprintf( outfile, ".LCallTo16%s.getgot2:\n", name );
2438 fprintf( outfile, "\tpopl %%ebx\n" );
2439 fprintf( outfile, "\taddl $_GLOBAL_OFFSET_TABLE_+[.-.LCallTo16%s.getgot2], %%ebx\n", name );
2440 }
2441
2442 /* Print debugging info */
2443 if (debugging)
2444 {
2445 if ( UsePIC )
2446 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallTo16Ret@PLT\n" );
2447 else
2448 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallTo16Ret\n" );
2449 }
2450
2451 /* Leave Win16 Mutex */
2452 if ( UsePIC )
2453 fprintf( outfile, "\tcall " PREFIX "SYSLEVEL_LeaveWin16Lock@PLT\n" );
2454 else
2455 fprintf( outfile, "\tcall " PREFIX "SYSLEVEL_LeaveWin16Lock\n" );
2456
2457 /* Get return value */
2458 fprintf( outfile, "\tpopl %%eax\n" );
2459
2460 /* Restore the 32-bit registers */
2461 fprintf( outfile, "\tpopl %%edi\n" );
2462 fprintf( outfile, "\tpopl %%esi\n" );
2463 fprintf( outfile, "\tpopl %%edx\n" );
2464 fprintf( outfile, "\tpopl %%ecx\n" );
2465 fprintf( outfile, "\tpopl %%ebx\n" );
2466
2467 /* Function exit sequence */
2468 fprintf( outfile, "\tpopl %%ebp\n" );
2469 fprintf( outfile, "\tret $8\n" );
2470
2471
2472 /* Start of the actual CallTo16 routine */
2473
2474 fprintf( outfile, ".LCallTo16%s:\n", name );
2475
2476 /* Complete STACK32FRAME */
2477 fprintf( outfile, "\t.byte 0x64\n\tpushl (%d)\n", STACKOFFSET );
2478 fprintf( outfile, "\tmovl %%esp,%%edx\n" );
2479
2480 /* Switch to the 16-bit stack */
2481 #ifdef __svr4__
2482 fprintf( outfile,"\tdata16\n");
2483 #endif
2484 fprintf( outfile, "\t.byte 0x64\n\tmovw (%d),%%ss\n", STACKOFFSET + 2);
2485 fprintf( outfile, "\t.byte 0x64\n\tmovw (%d),%%sp\n", STACKOFFSET );
2486 fprintf( outfile, "\t.byte 0x64\n\tmovl %%edx,(%d)\n", STACKOFFSET );
2487
2488 /* Make %bp point to the previous stackframe (built by CallFrom16) */
2489 fprintf( outfile, "\tmovzwl %%sp,%%ebp\n" );
2490 fprintf( outfile, "\tleal %d(%%ebp),%%ebp\n", STACK16OFFSET(bp) );
2491
2492 /* Add the specified offset to the new sp */
2493 fprintf( outfile, "\tsubw %d(%%edx), %%sp\n", STACK32OFFSET(nb_args) );
2494
2495 /* Push the return address
2496 * With sreg suffix, we push 16:16 address (normal lret)
2497 * With lreg suffix, we push 16:32 address (0x66 lret, for KERNEL32_45)
2498 */
2499 if (reg_func != 2)
2500 fprintf( outfile, "\tpushl %%ecx\n" );
2501 else
2502 {
2503 fprintf( outfile, "\tshldl $16, %%ecx, %%eax\n" );
2504 fprintf( outfile, "\tpushw $0\n" );
2505 fprintf( outfile, "\tpushw %%ax\n" );
2506 fprintf( outfile, "\tpushw $0\n" );
2507 fprintf( outfile, "\tpushw %%cx\n" );
2508 }
2509
2510 if (reg_func)
2511 {
2512 /* Push the called routine address */
2513 fprintf( outfile, "\tmovl %d(%%edx),%%edx\n", STACK32OFFSET(target) );
2514 fprintf( outfile, "\tpushw %d(%%edx)\n", CONTEXTOFFSET(SegCs) );
2515 fprintf( outfile, "\tpushw %d(%%edx)\n", CONTEXTOFFSET(Eip) );
2516
2517 /* Get the registers */
2518 fprintf( outfile, "\tpushw %d(%%edx)\n", CONTEXTOFFSET(SegDs) );
2519 fprintf( outfile, "\tmovl %d(%%edx),%%eax\n", CONTEXTOFFSET(SegEs) );
2520 fprintf( outfile, "\tmovw %%ax,%%es\n" );
2521 fprintf( outfile, "\tmovl %d(%%edx),%%eax\n", CONTEXTOFFSET(SegFs) );
2522 fprintf( outfile, "\tmovw %%ax,%%fs\n" );
2523 fprintf( outfile, "\tmovl %d(%%edx),%%ebp\n", CONTEXTOFFSET(Ebp) );
2524 fprintf( outfile, "\tmovl %d(%%edx),%%esi\n", CONTEXTOFFSET(Esi) );
2525 fprintf( outfile, "\tmovl %d(%%edx),%%edi\n", CONTEXTOFFSET(Edi) );
2526 fprintf( outfile, "\tmovl %d(%%edx),%%eax\n", CONTEXTOFFSET(Eax) );
2527 fprintf( outfile, "\tmovl %d(%%edx),%%ebx\n", CONTEXTOFFSET(Ebx) );
2528 fprintf( outfile, "\tmovl %d(%%edx),%%ecx\n", CONTEXTOFFSET(Ecx) );
2529 fprintf( outfile, "\tmovl %d(%%edx),%%edx\n", CONTEXTOFFSET(Edx) );
2530
2531 /* Get the 16-bit ds */
2532 fprintf( outfile, "\tpopw %%ds\n" );
2533 }
2534 else /* not a register function */
2535 {
2536 /* Push the called routine address */
2537 fprintf( outfile, "\tpushl %d(%%edx)\n", STACK32OFFSET(target) );
2538
2539 /* Set %fs to the value saved by the last CallFrom16 */
2540 fprintf( outfile, "\tmovw %d(%%ebp),%%ax\n", STACK16OFFSET(fs)-STACK16OFFSET(bp) );
2541 fprintf( outfile, "\tmovw %%ax,%%fs\n" );
2542
2543 /* Set %ds and %es (and %ax just in case) equal to %ss */
2544 fprintf( outfile, "\tmovw %%ss,%%ax\n" );
2545 fprintf( outfile, "\tmovw %%ax,%%ds\n" );
2546 fprintf( outfile, "\tmovw %%ax,%%es\n" );
2547 }
2548
2549 /* Jump to the called routine */
2550 fprintf( outfile, "\t.byte 0x66\n" );
2551 fprintf( outfile, "\tlret\n" );
2552 }
2553
2554 /*******************************************************************
2555 * BuildRet16Func
2556 *
2557 * Build the return code for 16-bit callbacks
2558 */
2559 static void BuildRet16Func( FILE *outfile )
2560 {
2561 /*
2562 * Note: This must reside in the .data section to allow
2563 * run-time relocation of the SYSLEVEL_Win16CurrentTeb symbol
2564 */
2565
2566 fprintf( outfile, "\n\t.type " PREFIX "CallTo16_Ret,@function\n" );
2567 fprintf( outfile, "\t.globl " PREFIX "CallTo16_Ret\n" );
2568 fprintf( outfile, PREFIX "CallTo16_Ret:\n" );
2569
2570 /* Restore 32-bit segment registers */
2571
2572 fprintf( outfile, "\tmovw $0x%04x,%%bx\n", Data_Selector );
2573 #ifdef __svr4__
2574 fprintf( outfile, "\tdata16\n");
2575 #endif
2576 fprintf( outfile, "\tmovw %%bx,%%ds\n" );
2577 #ifdef __svr4__
2578 fprintf( outfile, "\tdata16\n");
2579 #endif
2580 fprintf( outfile, "\tmovw %%bx,%%es\n" );
2581
2582 fprintf( outfile, "\tmovw " PREFIX "SYSLEVEL_Win16CurrentTeb,%%fs\n" );
2583
2584 /* Restore the 32-bit stack */
2585
2586 #ifdef __svr4__
2587 fprintf( outfile, "\tdata16\n");
2588 #endif
2589 fprintf( outfile, "\tmovw %%bx,%%ss\n" );
2590 fprintf( outfile, "\t.byte 0x64\n\tmovl (%d),%%esp\n", STACKOFFSET );
2591 fprintf( outfile, "\t.byte 0x64\n\tpopl (%d)\n", STACKOFFSET );
2592
2593 /* Return to caller */
2594
2595 fprintf( outfile, "\tlret\n" );
2596
2597 /* Declare the return address variable */
2598
2599 fprintf( outfile, "\n\t.globl " PREFIX "CallTo16_RetAddr\n" );
2600 fprintf( outfile, PREFIX "CallTo16_RetAddr:\t.long 0\n" );
2601 }
2602
2603 /*******************************************************************
2604 * BuildCallTo32CBClient
2605 *
2606 * Call a CBClient relay stub from 32-bit code (KERNEL.620).
2607 *
2608 * Since the relay stub is itself 32-bit, this should not be a problem;
2609 * unfortunately, the relay stubs are expected to switch back to a
2610 * 16-bit stack (and 16-bit code) after completion :-(
2611 *
2612 * This would conflict with our 16- vs. 32-bit stack handling, so
2613 * we simply switch *back* to our 32-bit stack before returning to
2614 * the caller ...
2615 *
2616 * The CBClient relay stub expects to be called with the following
2617 * 16-bit stack layout, and with ebp and ebx pointing into the 16-bit
2618 * stack at the designated places:
2619 *
2620 * ...
2621 * (ebp+14) original arguments to the callback routine
2622 * (ebp+10) far return address to original caller
2623 * (ebp+6) Thunklet target address
2624 * (ebp+2) Thunklet relay ID code
2625 * (ebp) BP (saved by CBClientGlueSL)
2626 * (ebp-2) SI (saved by CBClientGlueSL)
2627 * (ebp-4) DI (saved by CBClientGlueSL)
2628 * (ebp-6) DS (saved by CBClientGlueSL)
2629 *
2630 * ... buffer space used by the 16-bit side glue for temp copies
2631 *
2632 * (ebx+4) far return address to 16-bit side glue code
2633 * (ebx) saved 16-bit ss:sp (pointing to ebx+4)
2634 *
2635 * The 32-bit side glue code accesses both the original arguments (via ebp)
2636 * and the temporary copies prepared by the 16-bit side glue (via ebx).
2637 * After completion, the stub will load ss:sp from the buffer at ebx
2638 * and perform a far return to 16-bit code.
2639 *
2640 * To trick the relay stub into returning to us, we replace the 16-bit
2641 * return address to the glue code by a cs:ip pair pointing to our
2642 * return entry point (the original return address is saved first).
2643 * Our return stub thus called will then reload the 32-bit ss:esp and
2644 * return to 32-bit code (by using and ss:esp value that we have also
2645 * pushed onto the 16-bit stack before and a cs:eip values found at
2646 * that position on the 32-bit stack). The ss:esp to be restored is
2647 * found relative to the 16-bit stack pointer at:
2648 *
2649 * (ebx-4) ss (flat)
2650 * (ebx-8) sp (32-bit stack pointer)
2651 *
2652 * The second variant of this routine, CALL32_CBClientEx, which is used
2653 * to implement KERNEL.621, has to cope with yet another problem: Here,
2654 * the 32-bit side directly returns to the caller of the CBClient thunklet,
2655 * restoring registers saved by CBClientGlueSL and cleaning up the stack.
2656 * As we have to return to our 32-bit code first, we have to adapt the
2657 * layout of our temporary area so as to include values for the registers
2658 * that are to be restored, and later (in the implementation of KERNEL.621)
2659 * we *really* restore them. The return stub restores DS, DI, SI, and BP
2660 * from the stack, skips the next 8 bytes (CBClient relay code / target),
2661 * and then performs a lret NN, where NN is the number of arguments to be
2662 * removed. Thus, we prepare our temporary area as follows:
2663 *
2664 * (ebx+22) 16-bit cs (this segment)
2665 * (ebx+20) 16-bit ip ('16-bit' return entry point)
2666 * (ebx+16) 32-bit ss (flat)
2667 * (ebx+12) 32-bit sp (32-bit stack pointer)
2668 * (ebx+10) 16-bit bp (points to ebx+24)
2669 * (ebx+8) 16-bit si (ignored)
2670 * (ebx+6) 16-bit di (ignored)
2671 * (ebx+4) 16-bit ds (we actually use the flat DS here)
2672 * (ebx+2) 16-bit ss (16-bit stack segment)
2673 * (ebx+0) 16-bit sp (points to ebx+4)
2674 *
2675 * Note that we ensure that DS is not changed and remains the flat segment,
2676 * and the 32-bit stack pointer our own return stub needs fits just
2677 * perfectly into the 8 bytes that are skipped by the Windows stub.
2678 * One problem is that we have to determine the number of removed arguments,
2679 * as these have to be really removed in KERNEL.621. Thus, the BP value
2680 * that we place in the temporary area to be restored, contains the value
2681 * that SP would have if no arguments were removed. By comparing the actual
2682 * value of SP with this value in our return stub we can compute the number
2683 * of removed arguments. This is then returned to KERNEL.621.
2684 *
2685 * The stack layout of this function:
2686 * (ebp+20) nArgs pointer to variable receiving nr. of args (Ex only)
2687 * (ebp+16) esi pointer to caller's esi value
2688 * (ebp+12) arg ebp value to be set for relay stub
2689 * (ebp+8) func CBClient relay stub address
2690 * (ebp+4) ret addr
2691 * (ebp) ebp
2692 */
2693 static void BuildCallTo32CBClient( FILE *outfile, BOOL isEx )
2694 {
2695 char *name = isEx? "CBClientEx" : "CBClient";
2696 int size = isEx? 24 : 12;
2697
2698 /* Function header */
2699
2700 fprintf( outfile, "\n\t.align 4\n" );
2701 #ifdef USE_STABS
2702 fprintf( outfile, ".stabs \"CALL32_%s:F1\",36,0,0," PREFIX "CALL32_%s\n",
2703 name, name );
2704 #endif
2705 fprintf( outfile, "\t.globl " PREFIX "CALL32_%s\n", name );
2706 fprintf( outfile, PREFIX "CALL32_%s:\n", name );
2707
2708 /* Entry code */
2709
2710 fprintf( outfile, "\tpushl %%ebp\n" );
2711 fprintf( outfile, "\tmovl %%esp,%%ebp\n" );
2712 fprintf( outfile, "\tpushl %%edi\n" );
2713 fprintf( outfile, "\tpushl %%esi\n" );
2714 fprintf( outfile, "\tpushl %%ebx\n" );
2715
2716 /* Get the 16-bit stack */
2717
2718 fprintf( outfile, "\t.byte 0x64\n\tmovl (%d),%%ebx\n", STACKOFFSET);
2719
2720 /* Convert it to a flat address */
2721
2722 fprintf( outfile, "\tshldl $16,%%ebx,%%eax\n" );
2723 fprintf( outfile, "\tandl $0xfff8,%%eax\n" );
2724 fprintf( outfile, "\tmovl " PREFIX "ldt_copy(%%eax),%%esi\n" );
2725 fprintf( outfile, "\tmovw %%bx,%%ax\n" );
2726 fprintf( outfile, "\taddl %%eax,%%esi\n" );
2727
2728 /* Allocate temporary area (simulate STACK16_PUSH) */
2729
2730 fprintf( outfile, "\tpushf\n" );
2731 fprintf( outfile, "\tcld\n" );
2732 fprintf( outfile, "\tleal -%d(%%esi), %%edi\n", size );
2733 fprintf( outfile, "\tmovl $%d, %%ecx\n", sizeof(STACK16FRAME) );
2734 fprintf( outfile, "\trep\n\tmovsb\n" );
2735 fprintf( outfile, "\tpopf\n" );
2736
2737 fprintf( outfile, "\t.byte 0x64\n\tsubw $%d,(%d)\n", size, STACKOFFSET );
2738
2739 fprintf( outfile, "\tpushl %%edi\n" ); /* remember address */
2740
2741 /* Set up temporary area */
2742
2743 if ( !isEx )
2744 {
2745 fprintf( outfile, "\tleal 4(%%edi), %%edi\n" );
2746
2747 fprintf( outfile, "\tleal -8(%%esp), %%eax\n" );
2748 fprintf( outfile, "\tmovl %%eax, -8(%%edi)\n" ); /* 32-bit sp */
2749
2750 fprintf( outfile, "\tmovw %%ss, %%ax\n" );
2751 fprintf( outfile, "\tandl $0x0000ffff, %%eax\n" );
2752 fprintf( outfile, "\tmovl %%eax, -4(%%edi)\n" ); /* 32-bit ss */
2753
2754 fprintf( outfile, "\taddl $%d, %%ebx\n", sizeof(STACK16FRAME)-size+4 + 4 );
2755 fprintf( outfile, "\tmovl %%ebx, 0(%%edi)\n" ); /* 16-bit ss:sp */
2756
2757 fprintf( outfile, "\tmovl " PREFIX "CALL32_%s_RetAddr, %%eax\n", name );
2758 fprintf( outfile, "\tmovl %%eax, 4(%%edi)\n" ); /* overwrite return address */
2759 }
2760 else
2761 {
2762 fprintf( outfile, "\taddl $%d, %%ebx\n", sizeof(STACK16FRAME)-size+4 );
2763 fprintf( outfile, "\tmovl %%ebx, 0(%%edi)\n" );
2764
2765 fprintf( outfile, "\tmovw %%ds, %%ax\n" );
2766 fprintf( outfile, "\tmovw %%ax, 4(%%edi)\n" );
2767
2768 fprintf( outfile, "\taddl $20, %%ebx\n" );
2769 fprintf( outfile, "\tmovw %%bx, 10(%%edi)\n" );
2770
2771 fprintf( outfile, "\tleal -8(%%esp), %%eax\n" );
2772 fprintf( outfile, "\tmovl %%eax, 12(%%edi)\n" );
2773
2774 fprintf( outfile, "\tmovw %%ss, %%ax\n" );
2775 fprintf( outfile, "\tandl $0x0000ffff, %%eax\n" );
2776 fprintf( outfile, "\tmovl %%eax, 16(%%edi)\n" );
2777
2778 fprintf( outfile, "\tmovl " PREFIX "CALL32_%s_RetAddr, %%eax\n", name );
2779 fprintf( outfile, "\tmovl %%eax, 20(%%edi)\n" );
2780 }
2781
2782 /* Set up registers and call CBClient relay stub (simulating a far call) */
2783
2784 fprintf( outfile, "\tmovl 16(%%ebp), %%esi\n" );
2785 fprintf( outfile, "\tmovl (%%esi), %%esi\n" );
2786
2787 fprintf( outfile, "\tmovl %%edi, %%ebx\n" );
2788 fprintf( outfile, "\tmovl 8(%%ebp), %%eax\n" );
2789 fprintf( outfile, "\tmovl 12(%%ebp), %%ebp\n" );
2790
2791 fprintf( outfile, "\tpushl %%cs\n" );
2792 fprintf( outfile, "\tcall *%%eax\n" );
2793
2794 /* Return new esi value to caller */
2795
2796 fprintf( outfile, "\tmovl 32(%%esp), %%edi\n" );
2797 fprintf( outfile, "\tmovl %%esi, (%%edi)\n" );
2798
2799 /* Cleanup temporary area (simulate STACK16_POP) */
2800
2801 fprintf( outfile, "\tpop %%esi\n" );
2802
2803 fprintf( outfile, "\tpushf\n" );
2804 fprintf( outfile, "\tstd\n" );
2805 fprintf( outfile, "\tdec %%esi\n" );
2806 fprintf( outfile, "\tleal %d(%%esi), %%edi\n", size );
2807 fprintf( outfile, "\tmovl $%d, %%ecx\n", sizeof(STACK16FRAME) );
2808 fprintf( outfile, "\trep\n\tmovsb\n" );
2809 fprintf( outfile, "\tpopf\n" );
2810
2811 fprintf( outfile, "\t.byte 0x64\n\taddw $%d,(%d)\n", size, STACKOFFSET );
2812
2813 /* Return argument size to caller */
2814 if ( isEx )
2815 {
2816 fprintf( outfile, "\tmovl 32(%%esp), %%ebx\n" );
2817 fprintf( outfile, "\tmovl %%ebp, (%%ebx)\n" );
2818 }
2819
2820 /* Restore registers and return */
2821
2822 fprintf( outfile, "\tpopl %%ebx\n" );
2823 fprintf( outfile, "\tpopl %%esi\n" );
2824 fprintf( outfile, "\tpopl %%edi\n" );
2825 fprintf( outfile, "\tpopl %%ebp\n" );
2826 fprintf( outfile, "\tret\n" );
2827 }
2828
2829 static void BuildCallTo32CBClientRet( FILE *outfile, BOOL isEx )
2830 {
2831 char *name = isEx? "CBClientEx" : "CBClient";
2832
2833 /* '16-bit' return stub */
2834
2835 fprintf( outfile, "\n\t.globl " PREFIX "CALL32_%s_Ret\n", name );
2836 fprintf( outfile, PREFIX "CALL32_%s_Ret:\n", name );
2837
2838 if ( !isEx )
2839 {
2840 fprintf( outfile, "\tmovzwl %%sp, %%ebx\n" );
2841 fprintf( outfile, "\tlssl %%ss:-16(%%ebx), %%esp\n" );
2842 }
2843 else
2844 {
2845 fprintf( outfile, "\tmovzwl %%bp, %%ebx\n" );
2846 fprintf( outfile, "\tsubw %%bp, %%sp\n" );
2847 fprintf( outfile, "\tmovzwl %%sp, %%ebp\n" );
2848 fprintf( outfile, "\tlssl %%ss:-12(%%ebx), %%esp\n" );
2849 }
2850 fprintf( outfile, "\tlret\n" );
2851
2852 /* Declare the return address variable */
2853
2854 fprintf( outfile, "\n\t.globl " PREFIX "CALL32_%s_RetAddr\n", name );
2855 fprintf( outfile, PREFIX "CALL32_%s_RetAddr:\t.long 0\n", name );
2856 }
2857
2858
2859
2860 /*******************************************************************
2861 * BuildCallFrom32Regs
2862 *
2863 * Build a 32-bit-to-Wine call-back function for a 'register' function.
2864 * 'args' is the number of dword arguments.
2865 *
2866 * Stack layout:
2867 * ...
2868 * (ebp+12) first arg
2869 * (ebp+8) ret addr to user code
2870 * (ebp+4) ret addr to relay code
2871 * (ebp+0) saved ebp
2872 * (ebp-128) buffer area to allow stack frame manipulation
2873 * (ebp-332) CONTEXT86 struct
2874 * (ebp-336) CONTEXT86 *argument
2875 * .... other arguments copied from (ebp+12)
2876 *
2877 * The entry point routine is called with a CONTEXT* extra argument,
2878 * following the normal args. In this context structure, EIP_reg
2879 * contains the return address to user code, and ESP_reg the stack
2880 * pointer on return (with the return address and arguments already
2881 * removed).
2882 */
2883 static void BuildCallFrom32Regs( FILE *outfile )
2884 {
2885 static const int STACK_SPACE = 128 + sizeof(CONTEXT86);
2886
2887 /* Function header */
2888
2889 fprintf( outfile, "\n\t.align 4\n" );
2890 #ifdef USE_STABS
2891 fprintf( outfile, ".stabs \"CALL32_Regs:F1\",36,0,0," PREFIX "CALL32_Regs\n" );
2892 #endif
2893 fprintf( outfile, "\t.globl " PREFIX "CALL32_Regs\n" );
2894 fprintf( outfile, PREFIX "CALL32_Regs:\n" );
2895
2896 /* Allocate some buffer space on the stack */
2897
2898 fprintf( outfile, "\tpushl %%ebp\n" );
2899 fprintf( outfile, "\tmovl %%esp,%%ebp\n ");
2900 fprintf( outfile, "\tleal -%d(%%esp), %%esp\n", STACK_SPACE );
2901
2902 /* Build the context structure */
2903
2904 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(Eax) - STACK_SPACE );
2905 fprintf( outfile, "\tpushfl\n" );
2906 fprintf( outfile, "\tpopl %%eax\n" );
2907 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(EFlags) - STACK_SPACE );
2908 fprintf( outfile, "\tmovl 0(%%ebp),%%eax\n" );
2909 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(Ebp) - STACK_SPACE );
2910 fprintf( outfile, "\tmovl %%ebx,%d(%%ebp)\n", CONTEXTOFFSET(Ebx) - STACK_SPACE );
2911 fprintf( outfile, "\tmovl %%ecx,%d(%%ebp)\n", CONTEXTOFFSET(Ecx) - STACK_SPACE );
2912 fprintf( outfile, "\tmovl %%edx,%d(%%ebp)\n", CONTEXTOFFSET(Edx) - STACK_SPACE );
2913 fprintf( outfile, "\tmovl %%esi,%d(%%ebp)\n", CONTEXTOFFSET(Esi) - STACK_SPACE );
2914 fprintf( outfile, "\tmovl %%edi,%d(%%ebp)\n", CONTEXTOFFSET(Edi) - STACK_SPACE );
2915
2916 fprintf( outfile, "\txorl %%eax,%%eax\n" );
2917 fprintf( outfile, "\tmovw %%cs,%%ax\n" );
2918 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegCs) - STACK_SPACE );
2919 fprintf( outfile, "\tmovw %%es,%%ax\n" );
2920 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegEs) - STACK_SPACE );
2921 fprintf( outfile, "\tmovw %%fs,%%ax\n" );
2922 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegFs) - STACK_SPACE );
2923 fprintf( outfile, "\tmovw %%gs,%%ax\n" );
2924 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegGs) - STACK_SPACE );
2925 fprintf( outfile, "\tmovw %%ss,%%ax\n" );
2926 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegSs) - STACK_SPACE );
2927 fprintf( outfile, "\tmovw %%ds,%%ax\n" );
2928 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegDs) - STACK_SPACE );
2929 fprintf( outfile, "\tmovw %%ax,%%es\n" ); /* set %es equal to %ds just in case */
2930
2931 fprintf( outfile, "\tmovl $0x%x,%%eax\n", CONTEXT86_FULL );
2932 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(ContextFlags) - STACK_SPACE );
2933
2934 fprintf( outfile, "\tmovl 8(%%ebp),%%eax\n" ); /* Get %eip at time of call */
2935 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(Eip) - STACK_SPACE );
2936
2937 /* Transfer the arguments */
2938
2939 fprintf( outfile, "\tmovl 4(%%ebp),%%ebx\n" ); /* get relay code addr */
2940 fprintf( outfile, "\tpushl %%esp\n" ); /* push ptr to context struct */
2941 fprintf( outfile, "\tmovzbl 4(%%ebx),%%ecx\n" ); /* fetch number of args to copy */
2942 fprintf( outfile, "\tjecxz 1f\n" );
2943 fprintf( outfile, "\tsubl %%ecx,%%esp\n" );
2944 fprintf( outfile, "\tleal 12(%%ebp),%%esi\n" ); /* get %esp at time of call */
2945 fprintf( outfile, "\tmovl %%esp,%%edi\n" );
2946 fprintf( outfile, "\tshrl $2,%%ecx\n" );
2947 fprintf( outfile, "\tcld\n" );
2948 fprintf( outfile, "\trep\n\tmovsl\n" ); /* copy args */
2949
2950 fprintf( outfile, "1:\tmovzbl 5(%%ebx),%%eax\n" ); /* fetch number of args to remove */
2951 fprintf( outfile, "\tleal 12(%%ebp,%%eax),%%eax\n" );
2952 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(Esp) - STACK_SPACE );
2953
2954 /* Call the entry point */
2955
2956 fprintf( outfile, "\tcall *0(%%ebx)\n" );
2957
2958 /* Store %eip and %ebp onto the new stack */
2959
2960 fprintf( outfile, "\tmovl %d(%%ebp),%%edx\n", CONTEXTOFFSET(Esp) - STACK_SPACE );
2961 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(Eip) - STACK_SPACE );
2962 fprintf( outfile, "\tmovl %%eax,-4(%%edx)\n" );
2963 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(Ebp) - STACK_SPACE );
2964 fprintf( outfile, "\tmovl %%eax,-8(%%edx)\n" );
2965
2966 /* Restore the context structure */
2967
2968 /* Note: we don't bother to restore %cs, %ds and %ss
2969 * changing them in 32-bit code is a recipe for disaster anyway
2970 */
2971 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(SegEs) - STACK_SPACE );
2972 fprintf( outfile, "\tmovw %%ax,%%es\n" );
2973 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(SegFs) - STACK_SPACE );
2974 fprintf( outfile, "\tmovw %%ax,%%fs\n" );
2975 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(SegGs) - STACK_SPACE );
2976 fprintf( outfile, "\tmovw %%ax,%%gs\n" );
2977
2978 fprintf( outfile, "\tmovl %d(%%ebp),%%edi\n", CONTEXTOFFSET(Edi) - STACK_SPACE );
2979 fprintf( outfile, "\tmovl %d(%%ebp),%%esi\n", CONTEXTOFFSET(Esi) - STACK_SPACE );
2980 fprintf( outfile, "\tmovl %d(%%ebp),%%edx\n", CONTEXTOFFSET(Edx) - STACK_SPACE );
2981 fprintf( outfile, "\tmovl %d(%%ebp),%%ecx\n", CONTEXTOFFSET(Ecx) - STACK_SPACE );
2982 fprintf( outfile, "\tmovl %d(%%ebp),%%ebx\n", CONTEXTOFFSET(Ebx) - STACK_SPACE );
2983
2984 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(EFlags) - STACK_SPACE );
2985 fprintf( outfile, "\tpushl %%eax\n" );
2986 fprintf( outfile, "\tpopfl\n" );
2987 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(Eax) - STACK_SPACE );
2988
2989 fprintf( outfile, "\tmovl %d(%%ebp),%%ebp\n", CONTEXTOFFSET(Esp) - STACK_SPACE );
2990 fprintf( outfile, "\tleal -8(%%ebp),%%esp\n" );
2991 fprintf( outfile, "\tpopl %%ebp\n" );
2992 fprintf( outfile, "\tret\n" );
2993 }
2994
2995
2996 /*******************************************************************
2997 * BuildGlue
2998 *
2999 * Build the 16-bit-to-Wine/Wine-to-16-bit callback glue code
3000 */
3001 static void BuildGlue( FILE *outfile, FILE *infile )
3002 {
3003 char buffer[1024];
3004
3005 /* File header */
3006
3007 fprintf( outfile, "/* File generated automatically from %s; do not edit! */\n\n",
3008 input_file_name );
3009 fprintf( outfile, "#include \"builtin16.h\"\n" );
3010 fprintf( outfile, "#include \"stackframe.h\"\n\n" );
3011
3012 /* Build the callback glue functions */
3013
3014 while (fgets( buffer, sizeof(buffer), infile ))
3015 {
3016 if (strstr( buffer, "### start build ###" )) break;
3017 }
3018 while (fgets( buffer, sizeof(buffer), infile ))
3019 {
3020 char *p;
3021 if ( (p = strstr( buffer, "CallFrom16_" )) != NULL )
3022 {
3023 char *q, *profile = p + strlen( "CallFrom16_" );
3024 for (q = profile; (*q == '_') || isalpha(*q); q++ )
3025 ;
3026 *q = '\0';
3027 for (q = p-1; q > buffer && ((*q == '_') || isalnum(*q)); q-- )
3028 ;
3029 if ( ++q < p ) p[-1] = '\0'; else q = "";
3030 BuildCallFrom16Func( outfile, profile, q, FALSE );
3031 }
3032 if ( (p = strstr( buffer, "CallTo16_" )) != NULL )
3033 {
3034 char *q, *profile = p + strlen( "CallTo16_" );
3035 for (q = profile; (*q == '_') || isalpha(*q); q++ )
3036 ;
3037 *q = '\0';
3038 for (q = p-1; q > buffer && ((*q == '_') || isalnum(*q)); q-- )
3039 ;
3040 if ( ++q < p ) p[-1] = '\0'; else q = "";
3041 BuildCallTo16Func( outfile, profile, q );
3042 }
3043 if (strstr( buffer, "### stop build ###" )) break;
3044 }
3045
3046 fclose( infile );
3047 }
3048
3049 /*******************************************************************
3050 * BuildCall16
3051 *
3052 * Build the 16-bit callbacks
3053 */
3054 static void BuildCall16( FILE *outfile )
3055 {
3056 /* File header */
3057
3058 fprintf( outfile, "/* File generated automatically. Do not edit! */\n\n" );
3059 fprintf( outfile, "\t.text\n" );
3060
3061 #ifdef __i386__
3062
3063 #ifdef USE_STABS
3064 if (output_file_name)
3065 {
3066 char buffer[1024];
3067 getcwd(buffer, sizeof(buffer));
3068 fprintf( outfile, "\t.file\t\"%s\"\n", output_file_name );
3069
3070 /*
3071 * The stabs help the internal debugger as they are an indication that it
3072 * is sensible to step into a thunk/trampoline.
3073 */
3074 fprintf( outfile, ".stabs \"%s/\",100,0,0,Code_Start\n", buffer);
3075 fprintf( outfile, ".stabs \"%s\",100,0,0,Code_Start\n", output_file_name );
3076 fprintf( outfile, "Code_Start:\n\n" );
3077 }
3078 #endif
3079 fprintf( outfile, PREFIX"Call16_Start:\n" );
3080 fprintf( outfile, "\t.globl "PREFIX"Call16_Start\n" );
3081 fprintf( outfile, "\t.byte 0\n\n" );
3082
3083
3084 /* Standard CallFrom16 routine (WORD return) */
3085 BuildCallFrom16Core( outfile, FALSE, FALSE, TRUE );
3086
3087 /* Standard CallFrom16 routine (DWORD return) */
3088 BuildCallFrom16Core( outfile, FALSE, FALSE, FALSE );
3089
3090 /* Register CallFrom16 routine */
3091 BuildCallFrom16Core( outfile, TRUE, FALSE, FALSE );
3092
3093 /* C16ThkSL CallFrom16 routine */
3094 BuildCallFrom16Core( outfile, FALSE, TRUE, FALSE );
3095
3096 /* Standard CallTo16 routine (WORD return) */
3097 BuildCallTo16Core( outfile, TRUE, FALSE );
3098
3099 /* Standard CallTo16 routine (DWORD return) */
3100 BuildCallTo16Core( outfile, FALSE, FALSE );
3101
3102 /* Register CallTo16 routine (16:16 retf) */
3103 BuildCallTo16Core( outfile, FALSE, 1 );
3104
3105 /* Register CallTo16 routine (16:32 retf) */
3106 BuildCallTo16Core( outfile, FALSE, 2 );
3107
3108 /* CBClientThunkSL routine */
3109 BuildCallTo32CBClient( outfile, FALSE );
3110
3111 /* CBClientThunkSLEx routine */
3112 BuildCallTo32CBClient( outfile, TRUE );
3113
3114 fprintf( outfile, PREFIX"Call16_End:\n" );
3115 fprintf( outfile, "\t.globl "PREFIX"Call16_End\n" );
3116
3117 #ifdef USE_STABS
3118 fprintf( outfile, "\t.stabs \"\",100,0,0,.Letext\n");
3119 fprintf( outfile, ".Letext:\n");
3120 #endif
3121
3122 /* The whole Call16_Ret segment must lie within the .data section */
3123 fprintf( outfile, "\n\t.data\n" );
3124 fprintf( outfile, "\t.globl " PREFIX "Call16_Ret_Start\n" );
3125 fprintf( outfile, PREFIX "Call16_Ret_Start:\n" );
3126
3127 /* Standard CallTo16 return stub */
3128 BuildRet16Func( outfile );
3129
3130 /* CBClientThunkSL return stub */
3131 BuildCallTo32CBClientRet( outfile, FALSE );
3132
3133 /* CBClientThunkSLEx return stub */
3134 BuildCallTo32CBClientRet( outfile, TRUE );
3135
3136 /* End of Call16_Ret segment */
3137 fprintf( outfile, "\n\t.globl " PREFIX "Call16_Ret_End\n" );
3138 fprintf( outfile, PREFIX "Call16_Ret_End:\n" );
3139
3140 #else /* __i386__ */
3141
3142 fprintf( outfile, PREFIX"Call16_Start:\n" );
3143 fprintf( outfile, "\t.globl "PREFIX"Call16_Start\n" );
3144 fprintf( outfile, "\t.byte 0\n\n" );
3145 fprintf( outfile, PREFIX"Call16_End:\n" );
3146 fprintf( outfile, "\t.globl "PREFIX"Call16_End\n" );
3147
3148 fprintf( outfile, "\t.globl " PREFIX "Call16_Ret_Start\n" );
3149 fprintf( outfile, PREFIX "Call16_Ret_Start:\n" );
3150 fprintf( outfile, "\t.byte 0\n\n" );
3151 fprintf( outfile, "\n\t.globl " PREFIX "Call16_Ret_End\n" );
3152 fprintf( outfile, PREFIX "Call16_Ret_End:\n" );
3153
3154 #endif /* __i386__ */
3155 }
3156
3157 /*******************************************************************
3158 * BuildCall32
3159 *
3160 * Build the 32-bit callbacks
3161 */
3162 static void BuildCall32( FILE *outfile )
3163 {
3164 /* File header */
3165
3166 fprintf( outfile, "/* File generated automatically. Do not edit! */\n\n" );
3167 fprintf( outfile, "\t.text\n" );
3168
3169 #ifdef __i386__
3170
3171 #ifdef USE_STABS
3172 if (output_file_name)
3173 {
3174 char buffer[1024];
3175 getcwd(buffer, sizeof(buffer));
3176 fprintf( outfile, "\t.file\t\"%s\"\n", output_file_name );
3177
3178 /*
3179 * The stabs help the internal debugger as they are an indication that it
3180 * is sensible to step into a thunk/trampoline.
3181 */
3182 fprintf( outfile, ".stabs \"%s/\",100,0,0,Code_Start\n", buffer);
3183 fprintf( outfile, ".stabs \"%s\",100,0,0,Code_Start\n", output_file_name );
3184 fprintf( outfile, "Code_Start:\n" );
3185 }
3186 #endif
3187
3188 /* Build the register callback function */
3189
3190 BuildCallFrom32Regs( outfile );
3191
3192 #ifdef USE_STABS
3193 fprintf( outfile, "\t.text\n");
3194 fprintf( outfile, "\t.stabs \"\",100,0,0,.Letext\n");
3195 fprintf( outfile, ".Letext:\n");
3196 #endif
3197
3198 #else /* __i386__ */
3199
3200 /* Just to avoid an empty file */
3201 fprintf( outfile, "\t.long 0\n" );
3202
3203 #endif /* __i386__ */
3204 }
3205
3206
3207 /*******************************************************************
3208 * usage
3209 */
3210 static void usage(void)
3211 {
3212 fprintf( stderr,
3213 "usage: build [-pic] [-o outfile] -spec SPEC_FILE\n"
3214 " build [-pic] [-o outfile] -glue SOURCE_FILE\n"
3215 " build [-pic] [-o outfile] -call16\n"
3216 " build [-pic] [-o outfile] -call32\n" );
3217 if (output_file_name) unlink( output_file_name );
3218 exit(1);
3219 }
3220
3221
3222 /*******************************************************************
3223 * open_input
3224 */
3225 static FILE *open_input( const char *name )
3226 {
3227 FILE *f;
3228
3229 if (!name)
3230 {
3231 input_file_name = "<stdin>";
3232 return stdin;
3233 }
3234 input_file_name = name;
3235 if (!(f = fopen( name, "r" )))
3236 {
3237 fprintf( stderr, "Cannot open input file '%s'\n", name );
3238 if (output_file_name) unlink( output_file_name );
3239 exit(1);
3240 }
3241 return f;
3242 }
3243
3244 /*******************************************************************
3245 * main
3246 */
3247 int main(int argc, char **argv)
3248 {
3249 FILE *outfile = stdout;
3250
3251 if (argc < 2) usage();
3252
3253 if (!strcmp( argv[1], "-pic" ))
3254 {
3255 UsePIC = 1;
3256 argv += 1;
3257 argc -= 1;
3258 if (argc < 2) usage();
3259 }
3260
3261 if (!strcmp( argv[1], "-o" ))
3262 {
3263 output_file_name = argv[2];
3264 argv += 2;
3265 argc -= 2;
3266 if (argc < 2) usage();
3267 if (!(outfile = fopen( output_file_name, "w" )))
3268 {
3269 fprintf( stderr, "Unable to create output file '%s'\n", output_file_name );
3270 exit(1);
3271 }
3272 }
3273
3274 /* Retrieve the selector values; this assumes that we are building
3275 * the asm files on the platform that will also run them. Probably
3276 * a safe assumption to make.
3277 */
3278 Code_Selector = __get_cs();
3279 Data_Selector = __get_ds();
3280
3281 if (!strcmp( argv[1], "-spec" )) BuildSpecFile( outfile, open_input( argv[2] ) );
3282 else if (!strcmp( argv[1], "-glue" )) BuildGlue( outfile, open_input( argv[2] ) );
3283 else if (!strcmp( argv[1], "-call16" )) BuildCall16( outfile );
3284 else if (!strcmp( argv[1], "-call32" )) BuildCall32( outfile );
3285 else
3286 {
3287 fclose( outfile );
3288 usage();
3289 }
3290
3291 fclose( outfile );
3292 return 0;
3293 }
Windows API implementation