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Fixes for non-i386 compiling.
[wine/dcerpc.git] / tools / build.c
blob9a92b88b0d66d736120008407dacde7ed0396f03
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 */
7
8 #include <assert.h>
9 #include <stdio.h>
10 #include <stdlib.h>
11 #include <string.h>
12 #include <ctype.h>
13 #include <unistd.h>
14
15 #include "winbase.h"
16 #include "winnt.h"
17 #include "module.h"
18 #include "neexe.h"
19 #include "selectors.h"
20 #include "stackframe.h"
21 #include "thread.h"
22
23 #ifdef NEED_UNDERSCORE_PREFIX
24 # define PREFIX "_"
25 #else
26 # define PREFIX
27 #endif
28
29 #ifdef HAVE_ASM_STRING
30 # define STRING ".string"
31 #else
32 # define STRING ".ascii"
33 #endif
34
35 #if defined(__GNUC__) && !defined(__svr4__)
36 # define USE_STABS
37 #else
38 # undef USE_STABS
39 #endif
40
41 typedef enum
42 {
43 TYPE_INVALID,
44 TYPE_BYTE, /* byte variable (Win16) */
45 TYPE_WORD, /* word variable (Win16) */
46 TYPE_LONG, /* long variable (Win16) */
47 TYPE_PASCAL_16, /* pascal function with 16-bit return (Win16) */
48 TYPE_PASCAL, /* pascal function with 32-bit return (Win16) */
49 TYPE_ABS, /* absolute value (Win16) */
50 TYPE_RETURN, /* simple return value function (Win16) */
51 TYPE_REGISTER, /* register function */
52 TYPE_STUB, /* unimplemented stub */
53 TYPE_STDCALL, /* stdcall function (Win32) */
54 TYPE_CDECL, /* cdecl function (Win32) */
55 TYPE_VARARGS, /* varargs function (Win32) */
56 TYPE_EXTERN, /* external symbol (Win32) */
57 TYPE_FORWARD, /* forwarded function (Win32) */
58 TYPE_NBTYPES
59 } ORD_TYPE;
60
61 static const char * const TypeNames[TYPE_NBTYPES] =
62 {
63 NULL,
64 "byte", /* TYPE_BYTE */
65 "word", /* TYPE_WORD */
66 "long", /* TYPE_LONG */
67 "pascal16", /* TYPE_PASCAL_16 */
68 "pascal", /* TYPE_PASCAL */
69 "equate", /* TYPE_ABS */
70 "return", /* TYPE_RETURN */
71 "register", /* TYPE_REGISTER */
72 "stub", /* TYPE_STUB */
73 "stdcall", /* TYPE_STDCALL */
74 "cdecl", /* TYPE_CDECL */
75 "varargs", /* TYPE_VARARGS */
76 "extern", /* TYPE_EXTERN */
77 "forward" /* TYPE_FORWARD */
78 };
79
80 #define MAX_ORDINALS 2048
81 #define MAX_IMPORTS 16
82
83 /* Callback function used for stub functions */
84 #define STUB_CALLBACK \
85 ((SpecType == SPEC_WIN16) ? "RELAY_Unimplemented16": "RELAY_Unimplemented32")
86
87 typedef enum
88 {
89 SPEC_INVALID,
90 SPEC_WIN16,
91 SPEC_WIN32
92 } SPEC_TYPE;
93
94 typedef struct
95 {
96 int n_values;
97 int *values;
98 } ORD_VARIABLE;
99
100 typedef struct
101 {
102 int n_args;
103 char arg_types[32];
104 char link_name[80];
105 } ORD_FUNCTION;
106
107 typedef struct
108 {
109 int arg_size;
110 int ret_value;
111 } ORD_RETURN;
112
113 typedef struct
114 {
115 int value;
116 } ORD_ABS;
117
118 typedef struct
119 {
120 char link_name[80];
121 } ORD_VARARGS;
122
123 typedef struct
124 {
125 char link_name[80];
126 } ORD_EXTERN;
127
128 typedef struct
129 {
130 char link_name[80];
131 } ORD_FORWARD;
132
133 typedef struct
134 {
135 ORD_TYPE type;
136 int offset;
137 int lineno;
138 char name[80];
139 union
140 {
141 ORD_VARIABLE var;
142 ORD_FUNCTION func;
143 ORD_RETURN ret;
144 ORD_ABS abs;
145 ORD_VARARGS vargs;
146 ORD_EXTERN ext;
147 ORD_FORWARD fwd;
148 } u;
149 } ORDDEF;
150
151 static ORDDEF OrdinalDefinitions[MAX_ORDINALS];
152
153 static SPEC_TYPE SpecType = SPEC_INVALID;
154 static char DLLName[80];
155 static char DLLFileName[80];
156 static int Limit = 0;
157 static int Base = MAX_ORDINALS;
158 static int DLLHeapSize = 0;
159 static char *SpecName;
160 static FILE *SpecFp;
161 static WORD Code_Selector, Data_Selector;
162 static char DLLInitFunc[80];
163 static char *DLLImports[MAX_IMPORTS];
164 static int nb_imports = 0;
165
166 char *ParseBuffer = NULL;
167 char *ParseNext;
168 char ParseSaveChar;
169 int Line;
170
171 static int debugging = 1;
172
173 /* Offset of a structure field relative to the start of the struct */
174 #define STRUCTOFFSET(type,field) ((int)&((type *)0)->field)
175
176 /* Offset of register relative to the start of the CONTEXT struct */
177 #define CONTEXTOFFSET(reg) STRUCTOFFSET(CONTEXT,reg)
178
179 /* Offset of the stack pointer relative to %fs:(0) */
180 #define STACKOFFSET (STRUCTOFFSET(TEB,cur_stack))
181
182
183 static void *xmalloc (size_t size)
184 {
185 void *res;
186
187 res = malloc (size ? size : 1);
188 if (res == NULL)
189 {
190 fprintf (stderr, "Virtual memory exhausted.\n");
191 exit (1);
192 }
193 return res;
194 }
195
196
197 static void *xrealloc (void *ptr, size_t size)
198 {
199 void *res = realloc (ptr, size);
200 if (res == NULL)
201 {
202 fprintf (stderr, "Virtual memory exhausted.\n");
203 exit (1);
204 }
205 return res;
206 }
207
208 static char *xstrdup( const char *str )
209 {
210 char *res = strdup( str );
211 if (!res)
212 {
213 fprintf (stderr, "Virtual memory exhausted.\n");
214 exit (1);
215 }
216 return res;
217 }
218
219 static int IsNumberString(char *s)
220 {
221 while (*s != '\0')
222 if (!isdigit(*s++))
223 return 0;
224
225 return 1;
226 }
227
228 static char *strupper(char *s)
229 {
230 char *p;
231
232 for(p = s; *p != '\0'; p++)
233 *p = toupper(*p);
234
235 return s;
236 }
237
238 static char * GetTokenInLine(void)
239 {
240 char *p;
241 char *token;
242
243 if (ParseNext != ParseBuffer)
244 {
245 if (ParseSaveChar == '\0')
246 return NULL;
247 *ParseNext = ParseSaveChar;
248 }
249
250 /*
251 * Remove initial white space.
252 */
253 for (p = ParseNext; isspace(*p); p++)
254 ;
255
256 if ((*p == '\0') || (*p == '#'))
257 return NULL;
258
259 /*
260 * Find end of token.
261 */
262 token = p++;
263 if (*token != '(' && *token != ')')
264 while (*p != '\0' && *p != '(' && *p != ')' && !isspace(*p))
265 p++;
266
267 ParseSaveChar = *p;
268 ParseNext = p;
269 *p = '\0';
270
271 return token;
272 }
273
274 static char * GetToken(void)
275 {
276 char *token;
277
278 if (ParseBuffer == NULL)
279 {
280 ParseBuffer = xmalloc(512);
281 ParseNext = ParseBuffer;
282 while (1)
283 {
284 Line++;
285 if (fgets(ParseBuffer, 511, SpecFp) == NULL)
286 return NULL;
287 if (ParseBuffer[0] != '#')
288 break;
289 }
290 }
291
292 while ((token = GetTokenInLine()) == NULL)
293 {
294 ParseNext = ParseBuffer;
295 while (1)
296 {
297 Line++;
298 if (fgets(ParseBuffer, 511, SpecFp) == NULL)
299 return NULL;
300 if (ParseBuffer[0] != '#')
301 break;
302 }
303 }
304
305 return token;
306 }
307
308
309 /*******************************************************************
310 * ParseVariable
311 *
312 * Parse a variable definition.
313 */
314 static int ParseVariable( ORDDEF *odp )
315 {
316 char *endptr;
317 int *value_array;
318 int n_values;
319 int value_array_size;
320
321 char *token = GetToken();
322 if (*token != '(')
323 {
324 fprintf(stderr, "%s:%d: Expected '(' got '%s'\n",
325 SpecName, Line, token);
326 return -1;
327 }
328
329 n_values = 0;
330 value_array_size = 25;
331 value_array = xmalloc(sizeof(*value_array) * value_array_size);
332
333 while ((token = GetToken()) != NULL)
334 {
335 if (*token == ')')
336 break;
337
338 value_array[n_values++] = strtol(token, &endptr, 0);
339 if (n_values == value_array_size)
340 {
341 value_array_size += 25;
342 value_array = xrealloc(value_array,
343 sizeof(*value_array) * value_array_size);
344 }
345
346 if (endptr == NULL || *endptr != '\0')
347 {
348 fprintf(stderr, "%s:%d: Expected number value, got '%s'\n",
349 SpecName, Line, token);
350 return -1;
351 }
352 }
353
354 if (token == NULL)
355 {
356 fprintf(stderr, "%s:%d: End of file in variable declaration\n",
357 SpecName, Line);
358 return -1;
359 }
360
361 odp->u.var.n_values = n_values;
362 odp->u.var.values = xrealloc(value_array, sizeof(*value_array) * n_values);
363
364 return 0;
365 }
366
367
368 /*******************************************************************
369 * ParseExportFunction
370 *
371 * Parse a function definition.
372 */
373 static int ParseExportFunction( ORDDEF *odp )
374 {
375 char *token;
376 int i;
377
378 switch(SpecType)
379 {
380 case SPEC_WIN16:
381 if (odp->type == TYPE_STDCALL)
382 {
383 fprintf( stderr, "%s:%d: 'stdcall' not supported for Win16\n",
384 SpecName, Line );
385 return -1;
386 }
387 break;
388 case SPEC_WIN32:
389 if ((odp->type == TYPE_PASCAL) || (odp->type == TYPE_PASCAL_16))
390 {
391 fprintf( stderr, "%s:%d: 'pascal' not supported for Win32\n",
392 SpecName, Line );
393 return -1;
394 }
395 break;
396 default:
397 break;
398 }
399
400 token = GetToken();
401 if (*token != '(')
402 {
403 fprintf(stderr, "%s:%d: Expected '(' got '%s'\n",
404 SpecName, Line, token);
405 return -1;
406 }
407
408 for (i = 0; i < sizeof(odp->u.func.arg_types)-1; i++)
409 {
410 token = GetToken();
411 if (*token == ')')
412 break;
413
414 if (!strcmp(token, "word"))
415 odp->u.func.arg_types[i] = 'w';
416 else if (!strcmp(token, "s_word"))
417 odp->u.func.arg_types[i] = 's';
418 else if (!strcmp(token, "long") || !strcmp(token, "segptr"))
419 odp->u.func.arg_types[i] = 'l';
420 else if (!strcmp(token, "ptr"))
421 odp->u.func.arg_types[i] = 'p';
422 else if (!strcmp(token, "str"))
423 odp->u.func.arg_types[i] = 't';
424 else if (!strcmp(token, "wstr"))
425 odp->u.func.arg_types[i] = 'W';
426 else if (!strcmp(token, "segstr"))
427 odp->u.func.arg_types[i] = 'T';
428 else if (!strcmp(token, "double"))
429 {
430 odp->u.func.arg_types[i++] = 'l';
431 odp->u.func.arg_types[i] = 'l';
432 }
433 else
434 {
435 fprintf(stderr, "%s:%d: Unknown variable type '%s'\n",
436 SpecName, Line, token);
437 return -1;
438 }
439 if (SpecType == SPEC_WIN32)
440 {
441 if (strcmp(token, "long") &&
442 strcmp(token, "ptr") &&
443 strcmp(token, "str") &&
444 strcmp(token, "wstr") &&
445 strcmp(token, "double"))
446 {
447 fprintf( stderr, "%s:%d: Type '%s' not supported for Win32\n",
448 SpecName, Line, token );
449 return -1;
450 }
451 }
452 }
453 if ((*token != ')') || (i >= sizeof(odp->u.func.arg_types)))
454 {
455 fprintf( stderr, "%s:%d: Too many arguments\n", SpecName, Line );
456 return -1;
457 }
458 odp->u.func.arg_types[i] = '\0';
459 if ((odp->type == TYPE_STDCALL) && !i)
460 odp->type = TYPE_CDECL; /* stdcall is the same as cdecl for 0 args */
461 strcpy(odp->u.func.link_name, GetToken());
462 return 0;
463 }
464
465
466 /*******************************************************************
467 * ParseEquate
468 *
469 * Parse an 'equate' definition.
470 */
471 static int ParseEquate( ORDDEF *odp )
472 {
473 char *endptr;
474
475 char *token = GetToken();
476 int value = strtol(token, &endptr, 0);
477 if (endptr == NULL || *endptr != '\0')
478 {
479 fprintf(stderr, "%s:%d: Expected number value, got '%s'\n",
480 SpecName, Line, token);
481 return -1;
482 }
483
484 if (SpecType == SPEC_WIN32)
485 {
486 fprintf( stderr, "%s:%d: 'equate' not supported for Win32\n",
487 SpecName, Line );
488 return -1;
489 }
490
491 odp->u.abs.value = value;
492 return 0;
493 }
494
495
496 /*******************************************************************
497 * ParseReturn
498 *
499 * Parse a 'return' definition.
500 */
501 static int ParseReturn( ORDDEF *odp )
502 {
503 char *token;
504 char *endptr;
505
506 token = GetToken();
507 odp->u.ret.arg_size = strtol(token, &endptr, 0);
508 if (endptr == NULL || *endptr != '\0')
509 {
510 fprintf(stderr, "%s:%d: Expected number value, got '%s'\n",
511 SpecName, Line, token);
512 return -1;
513 }
514
515 token = GetToken();
516 odp->u.ret.ret_value = strtol(token, &endptr, 0);
517 if (endptr == NULL || *endptr != '\0')
518 {
519 fprintf(stderr, "%s:%d: Expected number value, got '%s'\n",
520 SpecName, Line, token);
521 return -1;
522 }
523
524 if (SpecType == SPEC_WIN32)
525 {
526 fprintf( stderr, "%s:%d: 'return' not supported for Win32\n",
527 SpecName, Line );
528 return -1;
529 }
530
531 return 0;
532 }
533
534
535 /*******************************************************************
536 * ParseStub
537 *
538 * Parse a 'stub' definition.
539 */
540 static int ParseStub( ORDDEF *odp )
541 {
542 odp->u.func.arg_types[0] = '\0';
543 strcpy( odp->u.func.link_name, STUB_CALLBACK );
544 return 0;
545 }
546
547
548 /*******************************************************************
549 * ParseVarargs
550 *
551 * Parse an 'varargs' definition.
552 */
553 static int ParseVarargs( ORDDEF *odp )
554 {
555 char *token;
556
557 if (SpecType == SPEC_WIN16)
558 {
559 fprintf( stderr, "%s:%d: 'varargs' not supported for Win16\n",
560 SpecName, Line );
561 return -1;
562 }
563
564 token = GetToken();
565 if (*token != '(')
566 {
567 fprintf(stderr, "%s:%d: Expected '(' got '%s'\n",
568 SpecName, Line, token);
569 return -1;
570 }
571 token = GetToken();
572 if (*token != ')')
573 {
574 fprintf(stderr, "%s:%d: Expected ')' got '%s'\n",
575 SpecName, Line, token);
576 return -1;
577 }
578
579 strcpy( odp->u.vargs.link_name, GetToken() );
580 return 0;
581 }
582
583
584 /*******************************************************************
585 * ParseExtern
586 *
587 * Parse an 'extern' definition.
588 */
589 static int ParseExtern( ORDDEF *odp )
590 {
591 if (SpecType == SPEC_WIN16)
592 {
593 fprintf( stderr, "%s:%d: 'extern' not supported for Win16\n",
594 SpecName, Line );
595 return -1;
596 }
597 strcpy( odp->u.ext.link_name, GetToken() );
598 return 0;
599 }
600
601
602 /*******************************************************************
603 * ParseForward
604 *
605 * Parse a 'forward' definition.
606 */
607 static int ParseForward( ORDDEF *odp )
608 {
609 if (SpecType == SPEC_WIN16)
610 {
611 fprintf( stderr, "%s:%d: 'forward' not supported for Win16\n",
612 SpecName, Line );
613 return -1;
614 }
615 strcpy( odp->u.fwd.link_name, GetToken() );
616 return 0;
617 }
618
619
620 /*******************************************************************
621 * ParseOrdinal
622 *
623 * Parse an ordinal definition.
624 */
625 static int ParseOrdinal(int ordinal)
626 {
627 ORDDEF *odp;
628 char *token;
629
630 if (ordinal >= MAX_ORDINALS)
631 {
632 fprintf(stderr, "%s:%d: Ordinal number too large\n", SpecName, Line );
633 return -1;
634 }
635 if (ordinal > Limit) Limit = ordinal;
636 if (ordinal < Base) Base = ordinal;
637
638 odp = &OrdinalDefinitions[ordinal];
639 if (!(token = GetToken()))
640 {
641 fprintf(stderr, "%s:%d: Expected type after ordinal\n", SpecName, Line);
642 return -1;
643 }
644
645 for (odp->type = 0; odp->type < TYPE_NBTYPES; odp->type++)
646 if (TypeNames[odp->type] && !strcmp( token, TypeNames[odp->type] ))
647 break;
648
649 if (odp->type >= TYPE_NBTYPES)
650 {
651 fprintf( stderr,
652 "%s:%d: Expected type after ordinal, found '%s' instead\n",
653 SpecName, Line, token );
654 return -1;
655 }
656
657 if (!(token = GetToken()))
658 {
659 fprintf( stderr, "%s:%d: Expected name after type\n", SpecName, Line );
660 return -1;
661 }
662 strcpy( odp->name, token );
663 odp->lineno = Line;
664
665 switch(odp->type)
666 {
667 case TYPE_BYTE:
668 case TYPE_WORD:
669 case TYPE_LONG:
670 return ParseVariable( odp );
671 case TYPE_PASCAL_16:
672 case TYPE_PASCAL:
673 case TYPE_REGISTER:
674 case TYPE_STDCALL:
675 case TYPE_CDECL:
676 return ParseExportFunction( odp );
677 case TYPE_ABS:
678 return ParseEquate( odp );
679 case TYPE_RETURN:
680 return ParseReturn( odp );
681 case TYPE_STUB:
682 return ParseStub( odp );
683 case TYPE_VARARGS:
684 return ParseVarargs( odp );
685 case TYPE_EXTERN:
686 return ParseExtern( odp );
687 case TYPE_FORWARD:
688 return ParseForward( odp );
689 default:
690 fprintf( stderr, "Should not happen\n" );
691 return -1;
692 }
693 }
694
695
696 /*******************************************************************
697 * ParseTopLevel
698 *
699 * Parse a spec file.
700 */
701 static int ParseTopLevel(void)
702 {
703 char *token;
704
705 while ((token = GetToken()) != NULL)
706 {
707 if (strcmp(token, "name") == 0)
708 {
709 strcpy(DLLName, GetToken());
710 strupper(DLLName);
711 if (!DLLFileName[0]) sprintf( DLLFileName, "%s.DLL", DLLName );
712 }
713 else if (strcmp(token, "file") == 0)
714 {
715 strcpy(DLLFileName, GetToken());
716 strupper(DLLFileName);
717 }
718 else if (strcmp(token, "type") == 0)
719 {
720 token = GetToken();
721 if (!strcmp(token, "win16" )) SpecType = SPEC_WIN16;
722 else if (!strcmp(token, "win32" )) SpecType = SPEC_WIN32;
723 else
724 {
725 fprintf(stderr, "%s:%d: Type must be 'win16' or 'win32'\n",
726 SpecName, Line);
727 return -1;
728 }
729 }
730 else if (strcmp(token, "heap") == 0)
731 {
732 token = GetToken();
733 if (!IsNumberString(token))
734 {
735 fprintf(stderr, "%s:%d: Expected number after heap\n",
736 SpecName, Line);
737 return -1;
738 }
739 DLLHeapSize = atoi(token);
740 }
741 else if (strcmp(token, "init") == 0)
742 {
743 strcpy(DLLInitFunc, GetToken());
744 if (!DLLInitFunc[0])
745 fprintf(stderr, "%s:%d: Expected function name after init\n", SpecName, Line);
746 }
747 else if (strcmp(token, "import") == 0)
748 {
749 if (nb_imports >= MAX_IMPORTS)
750 {
751 fprintf( stderr, "%s:%d: Too many imports (limit %d)\n",
752 SpecName, Line, MAX_IMPORTS );
753 return -1;
754 }
755 if (SpecType != SPEC_WIN32)
756 {
757 fprintf( stderr, "%s:%d: Imports not supported for Win16\n", SpecName, Line );
758 return -1;
759 }
760 DLLImports[nb_imports++] = xstrdup(GetToken());
761 }
762 else if (IsNumberString(token))
763 {
764 int ordinal;
765 int rv;
766
767 ordinal = atoi(token);
768 if ((rv = ParseOrdinal(ordinal)) < 0)
769 return rv;
770 }
771 else
772 {
773 fprintf(stderr,
774 "%s:%d: Expected name, id, length or ordinal\n",
775 SpecName, Line);
776 return -1;
777 }
778 }
779
780 return 0;
781 }
782
783
784 /*******************************************************************
785 * StoreVariableCode
786 *
787 * Store a list of ints into a byte array.
788 */
789 static int StoreVariableCode( unsigned char *buffer, int size, ORDDEF *odp )
790 {
791 int i;
792
793 switch(size)
794 {
795 case 1:
796 for (i = 0; i < odp->u.var.n_values; i++)
797 buffer[i] = odp->u.var.values[i];
798 break;
799 case 2:
800 for (i = 0; i < odp->u.var.n_values; i++)
801 ((unsigned short *)buffer)[i] = odp->u.var.values[i];
802 break;
803 case 4:
804 for (i = 0; i < odp->u.var.n_values; i++)
805 ((unsigned int *)buffer)[i] = odp->u.var.values[i];
806 break;
807 }
808 return odp->u.var.n_values * size;
809 }
810
811
812 /*******************************************************************
813 * DumpBytes
814 *
815 * Dump a byte stream into the assembly code.
816 */
817 static void DumpBytes( FILE *outfile, const unsigned char *data, int len,
818 const char *section, const char *label_start )
819 {
820 int i;
821 if (section) fprintf( outfile, "\t%s\n", section );
822 if (label_start) fprintf( outfile, "%s:\n", label_start );
823 for (i = 0; i < len; i++)
824 {
825 if (!(i & 0x0f)) fprintf( outfile, "\t.byte " );
826 fprintf( outfile, "%d", *data++ );
827 if (i < len - 1)
828 fprintf( outfile, "%c", ((i & 0x0f) != 0x0f) ? ',' : '\n' );
829 }
830 fprintf( outfile, "\n" );
831 }
832
833
834 /*******************************************************************
835 * BuildModule16
836 *
837 * Build the in-memory representation of a 16-bit NE module, and dump it
838 * as a byte stream into the assembly code.
839 */
840 static int BuildModule16( FILE *outfile, int max_code_offset,
841 int max_data_offset )
842 {
843 ORDDEF *odp;
844 int i;
845 char *buffer;
846 NE_MODULE *pModule;
847 SEGTABLEENTRY *pSegment;
848 OFSTRUCT *pFileInfo;
849 BYTE *pstr;
850 WORD *pword;
851 ET_BUNDLE *bundle = 0;
852 ET_ENTRY *entry = 0;
853
854 /* Module layout:
855 * NE_MODULE Module
856 * OFSTRUCT File information
857 * SEGTABLEENTRY Segment 1 (code)
858 * SEGTABLEENTRY Segment 2 (data)
859 * WORD[2] Resource table (empty)
860 * BYTE[2] Imported names (empty)
861 * BYTE[n] Resident names table
862 * BYTE[n] Entry table
863 */
864
865 buffer = xmalloc( 0x10000 );
866
867 pModule = (NE_MODULE *)buffer;
868 pModule->magic = IMAGE_OS2_SIGNATURE;
869 pModule->count = 1;
870 pModule->next = 0;
871 pModule->flags = NE_FFLAGS_SINGLEDATA | NE_FFLAGS_BUILTIN | NE_FFLAGS_LIBMODULE;
872 pModule->dgroup = 2;
873 pModule->heap_size = DLLHeapSize;
874 pModule->stack_size = 0;
875 pModule->ip = 0;
876 pModule->cs = 0;
877 pModule->sp = 0;
878 pModule->ss = 0;
879 pModule->seg_count = 2;
880 pModule->modref_count = 0;
881 pModule->nrname_size = 0;
882 pModule->modref_table = 0;
883 pModule->nrname_fpos = 0;
884 pModule->moveable_entries = 0;
885 pModule->alignment = 0;
886 pModule->truetype = 0;
887 pModule->os_flags = NE_OSFLAGS_WINDOWS;
888 pModule->misc_flags = 0;
889 pModule->dlls_to_init = 0;
890 pModule->nrname_handle = 0;
891 pModule->min_swap_area = 0;
892 pModule->expected_version = 0x030a;
893 pModule->module32 = 0;
894 pModule->self = 0;
895 pModule->self_loading_sel = 0;
896
897 /* File information */
898
899 pFileInfo = (OFSTRUCT *)(pModule + 1);
900 pModule->fileinfo = (int)pFileInfo - (int)pModule;
901 memset( pFileInfo, 0, sizeof(*pFileInfo) - sizeof(pFileInfo->szPathName) );
902 pFileInfo->cBytes = sizeof(*pFileInfo) - sizeof(pFileInfo->szPathName)
903 + strlen(DLLFileName);
904 strcpy( pFileInfo->szPathName, DLLFileName );
905 pstr = (char *)pFileInfo + pFileInfo->cBytes + 1;
906
907 /* Segment table */
908
909 pSegment = (SEGTABLEENTRY *)pstr;
910 pModule->seg_table = (int)pSegment - (int)pModule;
911 pSegment->filepos = 0;
912 pSegment->size = max_code_offset;
913 pSegment->flags = 0;
914 pSegment->minsize = max_code_offset;
915 pSegment->hSeg = 0;
916 pSegment++;
917
918 pModule->dgroup_entry = (int)pSegment - (int)pModule;
919 pSegment->filepos = 0;
920 pSegment->size = max_data_offset;
921 pSegment->flags = NE_SEGFLAGS_DATA;
922 pSegment->minsize = max_data_offset;
923 pSegment->hSeg = 0;
924 pSegment++;
925
926 /* Resource table */
927
928 pword = (WORD *)pSegment;
929 pModule->res_table = (int)pword - (int)pModule;
930 *pword++ = 0;
931 *pword++ = 0;
932
933 /* Imported names table */
934
935 pstr = (char *)pword;
936 pModule->import_table = (int)pstr - (int)pModule;
937 *pstr++ = 0;
938 *pstr++ = 0;
939
940 /* Resident names table */
941
942 pModule->name_table = (int)pstr - (int)pModule;
943 /* First entry is module name */
944 *pstr = strlen(DLLName );
945 strcpy( pstr + 1, DLLName );
946 pstr += *pstr + 1;
947 *(WORD *)pstr = 0;
948 pstr += sizeof(WORD);
949 /* Store all ordinals */
950 odp = OrdinalDefinitions + 1;
951 for (i = 1; i <= Limit; i++, odp++)
952 {
953 if (!odp->name[0]) continue;
954 *pstr = strlen( odp->name );
955 strcpy( pstr + 1, odp->name );
956 strupper( pstr + 1 );
957 pstr += *pstr + 1;
958 *(WORD *)pstr = i;
959 pstr += sizeof(WORD);
960 }
961 *pstr++ = 0;
962
963 /* Entry table */
964
965 pModule->entry_table = (int)pstr - (int)pModule;
966 odp = OrdinalDefinitions + 1;
967 for (i = 1; i <= Limit; i++, odp++)
968 {
969 int selector = 0;
970
971 switch (odp->type)
972 {
973 case TYPE_CDECL:
974 case TYPE_PASCAL:
975 case TYPE_PASCAL_16:
976 case TYPE_REGISTER:
977 case TYPE_RETURN:
978 case TYPE_STUB:
979 selector = 1; /* Code selector */
980 break;
981
982 case TYPE_BYTE:
983 case TYPE_WORD:
984 case TYPE_LONG:
985 selector = 2; /* Data selector */
986 break;
987
988 case TYPE_ABS:
989 selector = 0xfe; /* Constant selector */
990 break;
991
992 default:
993 selector = 0; /* Invalid selector */
994 break;
995 }
996
997 if ( !selector )
998 continue;
999
1000 if ( bundle && bundle->last+1 == i )
1001 bundle->last++;
1002 else
1003 {
1004 if ( bundle )
1005 bundle->next = (char *)pstr - (char *)pModule;
1006
1007 bundle = (ET_BUNDLE *)pstr;
1008 bundle->first = i-1;
1009 bundle->last = i;
1010 bundle->next = 0;
1011 pstr += sizeof(ET_BUNDLE);
1012 }
1013
1014 /* FIXME: is this really correct ?? */
1015 entry = (ET_ENTRY *)pstr;
1016 entry->type = 0xff; /* movable */
1017 entry->flags = 3; /* exported & public data */
1018 entry->segnum = selector;
1019 entry->offs = odp->offset;
1020 pstr += sizeof(ET_ENTRY);
1021 }
1022 *pstr++ = 0;
1023
1024 /* Dump the module content */
1025
1026 DumpBytes( outfile, (char *)pModule, (int)pstr - (int)pModule,
1027 ".data", "Module_Start" );
1028 return (int)pstr - (int)pModule;
1029 }
1030
1031
1032 /*******************************************************************
1033 * BuildSpec32File
1034 *
1035 * Build a Win32 C file from a spec file.
1036 */
1037 static int BuildSpec32File( char * specfile, FILE *outfile )
1038 {
1039 ORDDEF *odp;
1040 int i, nb_names, fwd_size = 0;
1041
1042 fprintf( outfile, "/* File generated automatically from %s; do not edit! */\n\n",
1043 specfile );
1044 fprintf( outfile, "#include \"builtin32.h\"\n\n" );
1045
1046 /* Output code for all stubs functions */
1047
1048 fprintf( outfile, "extern const BUILTIN32_DESCRIPTOR %s_Descriptor;\n",
1049 DLLName );
1050 for (i = Base, odp = OrdinalDefinitions + Base; i <= Limit; i++, odp++)
1051 {
1052 if (odp->type != TYPE_STUB) continue;
1053 fprintf( outfile, "static void __stub_%d() { BUILTIN32_Unimplemented(&%s_Descriptor,%d); }\n",
1054 i, DLLName, i );
1055 }
1056
1057 /* Output code for all register functions */
1058
1059 fprintf( outfile, "#ifdef __i386__\n" );
1060 fprintf( outfile, "#ifndef __GNUC__\n" );
1061 fprintf( outfile, "static void __asm__dummy() {\n" );
1062 fprintf( outfile, "#endif /* !defined(__GNUC__) */\n" );
1063 for (i = Base, odp = OrdinalDefinitions + Base; i <= Limit; i++, odp++)
1064 {
1065 if (odp->type != TYPE_REGISTER) continue;
1066 fprintf( outfile,
1067 "__asm__(\".align 4\\n\\t\"\n"
1068 " \".globl " PREFIX "%s\\n\\t\"\n"
1069 " \".type " PREFIX "%s,@function\\n\\t\"\n"
1070 " \"" PREFIX "%s:\\n\\t\"\n"
1071 " \"call " PREFIX "CALL32_Regs\\n\\t\"\n"
1072 " \".long " PREFIX "__regs_%s\\n\\t\"\n"
1073 " \".byte %d,%d\");\n",
1074 odp->u.func.link_name, odp->u.func.link_name,
1075 odp->u.func.link_name, odp->u.func.link_name,
1076 4 * strlen(odp->u.func.arg_types),
1077 4 * strlen(odp->u.func.arg_types) );
1078 }
1079 fprintf( outfile, "#ifndef __GNUC__\n" );
1080 fprintf( outfile, "}\n" );
1081 fprintf( outfile, "#endif /* !defined(__GNUC__) */\n" );
1082 fprintf( outfile, "#endif /* defined(__i386__) */\n" );
1083
1084 /* Output the DLL functions prototypes */
1085
1086 for (i = Base, odp = OrdinalDefinitions + Base; i <= Limit; i++, odp++)
1087 {
1088 switch(odp->type)
1089 {
1090 case TYPE_VARARGS:
1091 fprintf( outfile, "extern void %s();\n", odp->u.vargs.link_name );
1092 break;
1093 case TYPE_EXTERN:
1094 fprintf( outfile, "extern void %s();\n", odp->u.ext.link_name );
1095 break;
1096 case TYPE_REGISTER:
1097 case TYPE_STDCALL:
1098 case TYPE_CDECL:
1099 fprintf( outfile, "extern void %s();\n", odp->u.func.link_name );
1100 break;
1101 case TYPE_FORWARD:
1102 fwd_size += strlen(odp->u.fwd.link_name) + 1;
1103 break;
1104 case TYPE_INVALID:
1105 case TYPE_STUB:
1106 break;
1107 default:
1108 fprintf(stderr,"build: function type %d not available for Win32\n",
1109 odp->type);
1110 return -1;
1111 }
1112 }
1113
1114 /* Output LibMain function */
1115 if (DLLInitFunc[0]) fprintf( outfile, "extern void %s();\n", DLLInitFunc );
1116
1117
1118 /* Output the DLL functions table */
1119
1120 fprintf( outfile, "\nstatic const ENTRYPOINT32 Functions[%d] =\n{\n",
1121 Limit - Base + 1 );
1122 for (i = Base, odp = OrdinalDefinitions + Base; i <= Limit; i++, odp++)
1123 {
1124 switch(odp->type)
1125 {
1126 case TYPE_INVALID:
1127 fprintf( outfile, " 0" );
1128 break;
1129 case TYPE_VARARGS:
1130 fprintf( outfile, " %s", odp->u.vargs.link_name );
1131 break;
1132 case TYPE_EXTERN:
1133 fprintf( outfile, " %s", odp->u.ext.link_name );
1134 break;
1135 case TYPE_REGISTER:
1136 case TYPE_STDCALL:
1137 case TYPE_CDECL:
1138 fprintf( outfile, " %s", odp->u.func.link_name);
1139 break;
1140 case TYPE_STUB:
1141 fprintf( outfile, " __stub_%d", i );
1142 break;
1143 case TYPE_FORWARD:
1144 fprintf( outfile, " (ENTRYPOINT32)\"%s\"", odp->u.fwd.link_name );
1145 break;
1146 default:
1147 return -1;
1148 }
1149 if (i < Limit) fprintf( outfile, ",\n" );
1150 }
1151 fprintf( outfile, "\n};\n\n" );
1152
1153 /* Output the DLL names table */
1154
1155 nb_names = 0;
1156 fprintf( outfile, "static const char * const FuncNames[] =\n{\n" );
1157 for (i = Base, odp = OrdinalDefinitions + Base; i <= Limit; i++, odp++)
1158 {
1159 if (odp->type == TYPE_INVALID) continue;
1160 if (nb_names++) fprintf( outfile, ",\n" );
1161 fprintf( outfile, " \"%s\"", odp->name );
1162 }
1163 fprintf( outfile, "\n};\n\n" );
1164
1165 /* Output the DLL argument types */
1166
1167 fprintf( outfile, "static const unsigned int ArgTypes[%d] =\n{\n",
1168 Limit - Base + 1 );
1169 for (i = Base, odp = OrdinalDefinitions + Base; i <= Limit; i++, odp++)
1170 {
1171 unsigned int j, mask = 0;
1172 if ((odp->type == TYPE_STDCALL) || (odp->type == TYPE_CDECL) ||
1173 (odp->type == TYPE_REGISTER))
1174 for (j = 0; odp->u.func.arg_types[j]; j++)
1175 {
1176 if (odp->u.func.arg_types[j] == 't') mask |= 1<< (j*2);
1177 if (odp->u.func.arg_types[j] == 'W') mask |= 2<< (j*2);
1178 }
1179 fprintf( outfile, " %d", mask );
1180 if (i < Limit) fprintf( outfile, ",\n" );
1181 }
1182 fprintf( outfile, "\n};\n\n" );
1183
1184 /* Output the DLL ordinals table */
1185
1186 fprintf( outfile, "static const unsigned short FuncOrdinals[] =\n{\n" );
1187 nb_names = 0;
1188 for (i = Base, odp = OrdinalDefinitions + Base; i <= Limit; i++, odp++)
1189 {
1190 if (odp->type == TYPE_INVALID) continue;
1191 if (nb_names++) fprintf( outfile, ",\n" );
1192 fprintf( outfile, " %d", i - Base );
1193 }
1194 fprintf( outfile, "\n};\n\n" );
1195
1196 /* Output the DLL functions arguments */
1197
1198 fprintf( outfile, "static const unsigned char FuncArgs[%d] =\n{\n",
1199 Limit - Base + 1 );
1200 for (i = Base, odp = OrdinalDefinitions + Base; i <= Limit; i++, odp++)
1201 {
1202 unsigned char args;
1203 switch(odp->type)
1204 {
1205 case TYPE_STDCALL:
1206 args = (unsigned char)strlen(odp->u.func.arg_types);
1207 break;
1208 case TYPE_CDECL:
1209 args = 0x80 | (unsigned char)strlen(odp->u.func.arg_types);
1210 break;
1211 case TYPE_REGISTER:
1212 args = 0x40 | (unsigned char)strlen(odp->u.func.arg_types);
1213 break;
1214 case TYPE_FORWARD:
1215 args = 0xfd;
1216 break;
1217 default:
1218 args = 0xff;
1219 break;
1220 }
1221 fprintf( outfile, " 0x%02x", args );
1222 if (i < Limit) fprintf( outfile, ",\n" );
1223 }
1224 fprintf( outfile, "\n};\n\n" );
1225
1226 /* Output the DLL imports */
1227
1228 if (nb_imports)
1229 {
1230 fprintf( outfile, "static const char * const Imports[%d] =\n{\n", nb_imports );
1231 for (i = 0; i < nb_imports; i++)
1232 {
1233 fprintf( outfile, " \"%s\"", DLLImports[i] );
1234 if (i < nb_imports-1) fprintf( outfile, ",\n" );
1235 }
1236 fprintf( outfile, "\n};\n\n" );
1237 }
1238
1239 /* Output the DLL descriptor */
1240
1241 fprintf( outfile, "const BUILTIN32_DESCRIPTOR %s_Descriptor =\n{\n",
1242 DLLName );
1243 fprintf( outfile, " \"%s\",\n", DLLName );
1244 fprintf( outfile, " %d,\n", Base );
1245 fprintf( outfile, " %d,\n", Limit - Base + 1 );
1246 fprintf( outfile, " %d,\n", nb_names );
1247 fprintf( outfile, " %d,\n", nb_imports );
1248 fprintf( outfile, " %d,\n", (fwd_size + 3) & ~3 );
1249 fprintf( outfile,
1250 " Functions,\n"
1251 " FuncNames,\n"
1252 " FuncOrdinals,\n"
1253 " FuncArgs,\n"
1254 " ArgTypes,\n");
1255 fprintf( outfile, " %s,\n", nb_imports ? "Imports" : "0" );
1256 fprintf( outfile, " %s\n", DLLInitFunc[0] ? DLLInitFunc : "0" );
1257 fprintf( outfile, "};\n" );
1258 return 0;
1259 }
1260
1261
1262 /*******************************************************************
1263 * BuildSpec16File
1264 *
1265 * Build a Win16 assembly file from a spec file.
1266 */
1267 static int BuildSpec16File( char * specfile, FILE *outfile )
1268 {
1269 ORDDEF *odp;
1270 int i;
1271 int code_offset, data_offset, module_size;
1272 unsigned char *data;
1273
1274 data = (unsigned char *)xmalloc( 0x10000 );
1275 memset( data, 0, 16 );
1276 data_offset = 16;
1277
1278 fprintf( outfile, "/* File generated automatically; do not edit! */\n" );
1279 fprintf( outfile, "\t.text\n" );
1280 fprintf( outfile, "Code_Start:\n" );
1281 code_offset = 0;
1282
1283 odp = OrdinalDefinitions;
1284 for (i = 0; i <= Limit; i++, odp++)
1285 {
1286 switch (odp->type)
1287 {
1288 case TYPE_INVALID:
1289 odp->offset = 0xffff;
1290 break;
1291
1292 case TYPE_ABS:
1293 odp->offset = LOWORD(odp->u.abs.value);
1294 break;
1295
1296 case TYPE_BYTE:
1297 odp->offset = data_offset;
1298 data_offset += StoreVariableCode( data + data_offset, 1, odp);
1299 break;
1300
1301 case TYPE_WORD:
1302 odp->offset = data_offset;
1303 data_offset += StoreVariableCode( data + data_offset, 2, odp);
1304 break;
1305
1306 case TYPE_LONG:
1307 odp->offset = data_offset;
1308 data_offset += StoreVariableCode( data + data_offset, 4, odp);
1309 break;
1310
1311 case TYPE_RETURN:
1312 fprintf( outfile,"/* %s.%d */\n", DLLName, i);
1313 fprintf( outfile,"\tmovw $%d,%%ax\n",LOWORD(odp->u.ret.ret_value));
1314 fprintf( outfile,"\tmovw $%d,%%dx\n",HIWORD(odp->u.ret.ret_value));
1315 fprintf( outfile,"\t.byte 0x66\n");
1316 if (odp->u.ret.arg_size != 0)
1317 fprintf( outfile, "\tlret $%d\n\n", odp->u.ret.arg_size);
1318 else
1319 {
1320 fprintf( outfile, "\tlret\n");
1321 fprintf( outfile, "\tnop\n");
1322 fprintf( outfile, "\tnop\n\n");
1323 }
1324 odp->offset = code_offset;
1325 code_offset += 12; /* Assembly code is 12 bytes long */
1326 break;
1327
1328 case TYPE_REGISTER:
1329 case TYPE_CDECL:
1330 case TYPE_PASCAL:
1331 case TYPE_PASCAL_16:
1332 case TYPE_STUB:
1333 fprintf( outfile, "/* %s.%d */\n", DLLName, i);
1334 fprintf( outfile, "\tpushw %%bp\n" );
1335 fprintf( outfile, "\tpushl $" PREFIX "%s\n",odp->u.func.link_name);
1336 /* FreeBSD does not understand lcall, so do it the hard way */
1337 fprintf( outfile, "\t.byte 0x9a\n" );
1338 fprintf( outfile, "\t.long " PREFIX "CallFrom16_%s_%s_%s\n",
1339 (odp->type == TYPE_CDECL) ? "c" : "p",
1340 (odp->type == TYPE_REGISTER) ? "regs" :
1341 (odp->type == TYPE_PASCAL_16) ? "word" : "long",
1342 odp->u.func.arg_types );
1343 fprintf( outfile, "\t.long 0x%08lx\n",
1344 MAKELONG( Code_Selector, 0x9090 /* nop ; nop */ ) );
1345 odp->offset = code_offset;
1346 code_offset += 16; /* Assembly code is 16 bytes long */
1347 break;
1348
1349 default:
1350 fprintf(stderr,"build: function type %d not available for Win16\n",
1351 odp->type);
1352 return -1;
1353 }
1354 }
1355
1356 if (!code_offset) /* Make sure the code segment is not empty */
1357 {
1358 fprintf( outfile, "\t.byte 0\n" );
1359 code_offset++;
1360 }
1361
1362 /* Output data segment */
1363
1364 DumpBytes( outfile, data, data_offset, NULL, "Data_Start" );
1365
1366 /* Build the module */
1367
1368 module_size = BuildModule16( outfile, code_offset, data_offset );
1369
1370 /* Output the DLL descriptor */
1371
1372 fprintf( outfile, "\t.text\n" );
1373 fprintf( outfile, "DLLName:\t" STRING " \"%s\\0\"\n", DLLName );
1374 fprintf( outfile, "\t.align 4\n" );
1375 fprintf( outfile, "\t.globl " PREFIX "%s_Descriptor\n", DLLName );
1376 fprintf( outfile, PREFIX "%s_Descriptor:\n", DLLName );
1377 fprintf( outfile, "\t.long DLLName\n" ); /* Name */
1378 fprintf( outfile, "\t.long Module_Start\n" ); /* Module start */
1379 fprintf( outfile, "\t.long %d\n", module_size ); /* Module size */
1380 fprintf( outfile, "\t.long Code_Start\n" ); /* Code start */
1381 fprintf( outfile, "\t.long Data_Start\n" ); /* Data start */
1382 return 0;
1383 }
1384
1385
1386 /*******************************************************************
1387 * BuildSpecFile
1388 *
1389 * Build an assembly file from a spec file.
1390 */
1391 static int BuildSpecFile( FILE *outfile, char *specname )
1392 {
1393 SpecName = specname;
1394 SpecFp = fopen( specname, "r");
1395 if (SpecFp == NULL)
1396 {
1397 fprintf(stderr, "Could not open specification file, '%s'\n", specname);
1398 return -1;
1399 }
1400
1401 if (ParseTopLevel() < 0) return -1;
1402
1403 switch(SpecType)
1404 {
1405 case SPEC_WIN16:
1406 return BuildSpec16File( specname, outfile );
1407 case SPEC_WIN32:
1408 return BuildSpec32File( specname, outfile );
1409 default:
1410 fprintf( stderr, "%s: Missing 'type' declaration\n", specname );
1411 return -1;
1412 }
1413 }
1414
1415
1416 /*******************************************************************
1417 * TransferArgs16To32
1418 *
1419 * Get the arguments from the 16-bit stack and push them on the 32-bit stack.
1420 * The 16-bit stack layout is:
1421 * ... ...
1422 * (bp+8) arg2
1423 * (bp+6) arg1
1424 * (bp+4) cs
1425 * (bp+2) ip
1426 * (bp) bp
1427 *
1428 * For 'cdecl' argn up to arg1 are reversed.
1429 */
1430 static int TransferArgs16To32( FILE *outfile, char *args, int usecdecl )
1431 {
1432 int i, pos16, pos32;
1433 char *xargs;
1434
1435 /* Copy the arguments */
1436
1437 pos16 = 6; /* skip bp and return address */
1438 pos32 = usecdecl ? -(strlen(args) * 4) : 0;
1439 xargs = usecdecl ? args:args+strlen(args);
1440
1441 for (i = strlen(args); i > 0; i--)
1442 {
1443 if (!usecdecl) {
1444 pos32 -= 4;
1445 xargs--;
1446 }
1447 switch(*xargs)
1448 {
1449 case 'w': /* word */
1450 fprintf( outfile, "\tmovzwl %d(%%ebp),%%eax\n", pos16 );
1451 fprintf( outfile, "\tmovl %%eax,%d(%%ebx)\n", pos32 );
1452 pos16 += 2;
1453 break;
1454
1455 case 's': /* s_word */
1456 fprintf( outfile, "\tmovswl %d(%%ebp),%%eax\n", pos16 );
1457 fprintf( outfile, "\tmovl %%eax,%d(%%ebx)\n", pos32 );
1458 pos16 += 2;
1459 break;
1460
1461 case 'l': /* long or segmented pointer */
1462 case 'T': /* segmented pointer to null-terminated string */
1463 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", pos16 );
1464 fprintf( outfile, "\tmovl %%eax,%d(%%ebx)\n", pos32 );
1465 pos16 += 4;
1466 break;
1467
1468 case 'p': /* linear pointer */
1469 case 't': /* linear pointer to null-terminated string */
1470 /* Get the selector */
1471 fprintf( outfile, "\tmovw %d(%%ebp),%%ax\n", pos16 + 2 );
1472 /* Get the selector base */
1473 fprintf( outfile, "\tandl $0xfff8,%%eax\n" );
1474 fprintf( outfile, "\tmovl " PREFIX "ldt_copy(%%eax),%%eax\n" );
1475 fprintf( outfile, "\tmovl %%eax,%d(%%ebx)\n", pos32 );
1476 /* Add the offset */
1477 fprintf( outfile, "\tmovzwl %d(%%ebp),%%eax\n", pos16 );
1478 fprintf( outfile, "\taddl %%eax,%d(%%ebx)\n", pos32 );
1479 pos16 += 4;
1480 break;
1481
1482 default:
1483 fprintf( stderr, "Unknown arg type '%c'\n", *xargs );
1484 }
1485 if (usecdecl) {
1486 pos32 += 4;
1487 xargs++;
1488 }
1489 }
1490
1491 return pos16 - 6; /* Return the size of the 16-bit args */
1492 }
1493
1494
1495 /*******************************************************************
1496 * BuildContext16
1497 *
1498 * Build the context structure on the 32-bit stack.
1499 */
1500 static void BuildContext16( FILE *outfile )
1501 {
1502 /* Store the registers */
1503
1504 fprintf( outfile, "\tmovl %%eax,%d(%%ebx)\n",
1505 CONTEXTOFFSET(Eax) - sizeof(CONTEXT) );
1506 fprintf( outfile, "\tmovl %%ecx,%d(%%ebx)\n",
1507 CONTEXTOFFSET(Ecx) - sizeof(CONTEXT) );
1508 fprintf( outfile, "\tmovl %%edx,%d(%%ebx)\n",
1509 CONTEXTOFFSET(Edx) - sizeof(CONTEXT) );
1510 fprintf( outfile, "\tmovl %%esi,%d(%%ebx)\n",
1511 CONTEXTOFFSET(Esi) - sizeof(CONTEXT) );
1512 fprintf( outfile, "\tmovl %%edi,%d(%%ebx)\n",
1513 CONTEXTOFFSET(Edi) - sizeof(CONTEXT) );
1514
1515 fprintf( outfile, "\tmovl -24(%%ebp),%%eax\n" ); /* Get %ebx from stack*/
1516 fprintf( outfile, "\tmovl %%eax,%d(%%ebx)\n",
1517 CONTEXTOFFSET(Ebx) - sizeof(CONTEXT) );
1518 fprintf( outfile, "\tmovzwl -10(%%ebp),%%eax\n" ); /* Get %ds from stack*/
1519 fprintf( outfile, "\tmovl %%eax,%d(%%ebx)\n",
1520 CONTEXTOFFSET(SegDs) - sizeof(CONTEXT) );
1521 fprintf( outfile, "\tmovzwl -6(%%ebp),%%eax\n" ); /* Get %es from stack*/
1522 fprintf( outfile, "\tmovl %%eax,%d(%%ebx)\n",
1523 CONTEXTOFFSET(SegEs) - sizeof(CONTEXT) );
1524 fprintf( outfile, "\tpushfl\n" );
1525 fprintf( outfile, "\tpopl %d(%%ebx)\n",
1526 CONTEXTOFFSET(EFlags) - sizeof(CONTEXT) );
1527 fprintf( outfile, "\tmovl -20(%%ebp),%%eax\n" ); /* Get %ebp from stack */
1528 fprintf( outfile, "\tmovl %%eax,%d(%%ebx)\n",
1529 CONTEXTOFFSET(Ebp) - sizeof(CONTEXT) );
1530 fprintf( outfile, "\tmovzwl 2(%%ebp),%%eax\n" ); /* Get %ip from stack */
1531 fprintf( outfile, "\tmovl %%eax,%d(%%ebx)\n",
1532 CONTEXTOFFSET(Eip) - sizeof(CONTEXT) );
1533 fprintf( outfile, "\tleal 2(%%ebp),%%eax\n" ); /* Get initial %sp */
1534 fprintf( outfile, "\tmovl %%eax,%d(%%ebx)\n",
1535 CONTEXTOFFSET(Esp) - sizeof(CONTEXT) );
1536 fprintf( outfile, "\tmovzwl 4(%%ebp),%%eax\n" ); /* Get %cs from stack */
1537 fprintf( outfile, "\tmovl %%eax,%d(%%ebx)\n",
1538 CONTEXTOFFSET(SegCs) - sizeof(CONTEXT) );
1539 fprintf( outfile, "\tmovzwl -14(%%ebp),%%eax\n" ); /* Get %fs from stack */
1540 fprintf( outfile, "\tmovl %%eax,%d(%%ebx)\n",
1541 CONTEXTOFFSET(SegFs) - sizeof(CONTEXT) );
1542 fprintf( outfile, "\tmovw %%gs,%%ax\n" );
1543 fprintf( outfile, "\tmovl %%eax,%d(%%ebx)\n",
1544 CONTEXTOFFSET(SegGs) - sizeof(CONTEXT) );
1545 fprintf( outfile, "\tmovw %%ss,%%ax\n" );
1546 fprintf( outfile, "\tmovl %%eax,%d(%%ebx)\n",
1547 CONTEXTOFFSET(SegSs) - sizeof(CONTEXT) );
1548 #if 0
1549 fprintf( outfile, "\tfsave %d(%%ebx)\n",
1550 CONTEXTOFFSET(FloatSave) - sizeof(CONTEXT) );
1551 #endif
1552 }
1553
1554
1555 /*******************************************************************
1556 * RestoreContext16
1557 *
1558 * Restore the registers from the context structure.
1559 */
1560 static void RestoreContext16( FILE *outfile )
1561 {
1562 /* Get the 32-bit stack pointer */
1563
1564 fprintf( outfile, "\tleal -%d(%%ebp),%%ebx\n",
1565 STRUCTOFFSET(STACK32FRAME,ebp) );
1566
1567 /* Remove everything up to (including) the return address
1568 * from the 16-bit stack */
1569
1570 fprintf( outfile, "\tmovl %d(%%ebx),%%eax\n",
1571 CONTEXTOFFSET(SegSs) - sizeof(CONTEXT) );
1572 fprintf( outfile, "\tmovw %%ax,%%ss\n" );
1573 fprintf( outfile, "\tmovl %d(%%ebx),%%esp\n",
1574 CONTEXTOFFSET(Esp) - sizeof(CONTEXT) );
1575 fprintf( outfile, "\taddl $4,%%esp\n" ); /* Remove return address */
1576
1577 /* Restore the registers */
1578
1579 fprintf( outfile, "\tmovl %d(%%ebx),%%ecx\n",
1580 CONTEXTOFFSET(Ecx) - sizeof(CONTEXT) );
1581 fprintf( outfile, "\tmovl %d(%%ebx),%%edx\n",
1582 CONTEXTOFFSET(Edx) - sizeof(CONTEXT) );
1583 fprintf( outfile, "\tmovl %d(%%ebx),%%esi\n",
1584 CONTEXTOFFSET(Esi) - sizeof(CONTEXT) );
1585 fprintf( outfile, "\tmovl %d(%%ebx),%%edi\n",
1586 CONTEXTOFFSET(Edi) - sizeof(CONTEXT) );
1587 fprintf( outfile, "\tmovl %d(%%ebx),%%ebp\n",
1588 CONTEXTOFFSET(Ebp) - sizeof(CONTEXT) );
1589 fprintf( outfile, "\tpushw %d(%%ebx)\n", /* Push new cs */
1590 CONTEXTOFFSET(SegCs) - sizeof(CONTEXT) );
1591 fprintf( outfile, "\tpushw %d(%%ebx)\n", /* Push new ip */
1592 CONTEXTOFFSET(Eip) - sizeof(CONTEXT) );
1593 fprintf( outfile, "\tpushl %d(%%ebx)\n", /* Push new ds */
1594 CONTEXTOFFSET(SegDs) - sizeof(CONTEXT) );
1595 fprintf( outfile, "\tpushl %d(%%ebx)\n", /* Push new es */
1596 CONTEXTOFFSET(SegEs) - sizeof(CONTEXT) );
1597 fprintf( outfile, "\tpushl %d(%%ebx)\n", /* Push new fs */
1598 CONTEXTOFFSET(SegFs) - sizeof(CONTEXT) );
1599 fprintf( outfile, "\tpushl %d(%%ebx)\n",
1600 CONTEXTOFFSET(EFlags) - sizeof(CONTEXT) );
1601 fprintf( outfile, "\tpopfl\n" );
1602 fprintf( outfile, "\tmovl %d(%%ebx),%%eax\n",
1603 CONTEXTOFFSET(Eax) - sizeof(CONTEXT) );
1604 fprintf( outfile, "\tmovl %d(%%ebx),%%ebx\n",
1605 CONTEXTOFFSET(Ebx) - sizeof(CONTEXT) );
1606 fprintf( outfile, "\tpopl %%fs\n" ); /* Set fs */
1607 fprintf( outfile, "\tpopl %%es\n" ); /* Set es */
1608 fprintf( outfile, "\tpopl %%ds\n" ); /* Set ds */
1609 }
1610
1611
1612 /*******************************************************************
1613 * BuildCallFrom16Func
1614 *
1615 * Build a 16-bit-to-Wine callback function. The syntax of the function
1616 * profile is: call_type_xxxxx, where 'call' is the letter 'c' or 'p' for C or
1617 * Pascal calling convention, 'type' is one of 'regs', 'word' or
1618 * 'long' and each 'x' is an argument ('w'=word, 's'=signed word,
1619 * 'l'=long, 'p'=linear pointer, 't'=linear pointer to null-terminated string,
1620 * 'T'=segmented pointer to null-terminated string).
1621 * For register functions, the arguments are ignored, but they are still
1622 * removed from the stack upon return.
1623 *
1624 * A special variant of the callback function is generated by the function
1625 * profile "t_long_". This is used by the Win95 16->32 thunk
1626 * functions C16ThkSL and C16ThkSL01 and is implemented as follows:
1627 * On entry, the EBX register is set up to contain a flat pointer to the
1628 * 16-bit stack such that EBX+22 points to the first argument.
1629 * Then, the entry point is called, while EBP is set up to point
1630 * to the return address (on the 32-bit stack).
1631 * The called function returns with CX set to the number of bytes
1632 * to be popped of the caller's stack.
1633 *
1634 * Stack layout upon entry to the callback function:
1635 * ... ...
1636 * (sp+18) word first 16-bit arg
1637 * (sp+16) word cs
1638 * (sp+14) word ip
1639 * (sp+12) word bp
1640 * (sp+8) long 32-bit entry point (used to store edx)
1641 * (sp+6) word high word of cs (always 0, used to store es)
1642 * (sp+4) word low word of cs of 16-bit entry point
1643 * (sp+2) word high word of ip (always 0, used to store ds)
1644 * (sp) word low word of ip of 16-bit entry point
1645 *
1646 * Added on the stack:
1647 * (sp-2) word saved fs
1648 * (sp-4) word buffer for Win16Mutex recursion count
1649 * (sp-8) long ebp
1650 * (sp-12) long saved previous stack
1651 */
1652 static void BuildCallFrom16Func( FILE *outfile, char *profile )
1653 {
1654 int argsize = 0;
1655 int short_ret = 0;
1656 int reg_func = 0;
1657 int Cdecl = 0;
1658 int thunk = 0;
1659 char *args = profile + 7;
1660
1661 /* Parse function type */
1662
1663 if (!strncmp( "c_", profile, 2 )) Cdecl = 1;
1664 else if (!strncmp( "t_", profile, 2 )) thunk = 1;
1665 else if (strncmp( "p_", profile, 2 ))
1666 {
1667 fprintf( stderr, "Invalid function name '%s', ignored\n", profile );
1668 return;
1669 }
1670
1671 if (!strncmp( "word_", profile + 2, 5 )) short_ret = 1;
1672 else if (!strncmp( "regs_", profile + 2, 5 )) reg_func = 1;
1673 else if (strncmp( "long_", profile + 2, 5 ))
1674 {
1675 fprintf( stderr, "Invalid function name '%s', ignored\n", profile );
1676 return;
1677 }
1678
1679 /* Function header */
1680
1681 fprintf( outfile, "\n\t.align 4\n" );
1682 #ifdef USE_STABS
1683 fprintf( outfile, ".stabs \"CallFrom16_%s:F1\",36,0,0," PREFIX "CallFrom16_%s\n",
1684 profile, profile);
1685 #endif
1686 fprintf( outfile, "\t.globl " PREFIX "CallFrom16_%s\n", profile );
1687 fprintf( outfile, PREFIX "CallFrom16_%s:\n", profile );
1688
1689 /* Save 16-bit fs and leave room for Win16Mutex recursion count */
1690
1691 fprintf( outfile, "\t.byte 0x66\n\tpushl %%fs\n" );
1692 fprintf( outfile, "\tpushw $0\n" );
1693
1694 /* Setup bp to point to its copy on the stack */
1695
1696 fprintf( outfile, "\tpushl %%ebp\n" ); /* Save the full 32-bit ebp */
1697 fprintf( outfile, "\tmovzwl %%sp,%%ebp\n" );
1698 fprintf( outfile, "\taddw $20,%%bp\n" );
1699
1700 /* Save 16-bit ds and es */
1701
1702 /* Stupid FreeBSD assembler doesn't know these either */
1703 /* fprintf( outfile, "\tmovw %%ds,-10(%%ebp)\n" ); */
1704 fprintf( outfile, "\t.byte 0x66,0x8c,0x5d,0xf6\n" );
1705 /* fprintf( outfile, "\tmovw %%es,-6(%%ebp)\n" ); */
1706 fprintf( outfile, "\t.byte 0x66,0x8c,0x45,0xfa\n" );
1707
1708 /* Save %ebx */
1709
1710 fprintf( outfile, "\tpushl %%ebx\n" );
1711
1712 /* Restore 32-bit segment registers */
1713
1714 fprintf( outfile, "\tmovw $0x%04x,%%bx\n", Data_Selector );
1715 #ifdef __svr4__
1716 fprintf( outfile, "\tdata16\n");
1717 #endif
1718 fprintf( outfile, "\tmovw %%bx,%%ds\n" );
1719 #ifdef __svr4__
1720 fprintf( outfile, "\tdata16\n");
1721 #endif
1722 fprintf( outfile, "\tmovw %%bx,%%es\n" );
1723
1724 fprintf( outfile, "\tmovw " PREFIX "SYSLEVEL_Win16CurrentTeb,%%fs\n" );
1725
1726 /* Get the 32-bit stack pointer from the TEB */
1727
1728 fprintf( outfile, "\t.byte 0x64\n\tmovl (%d),%%ebx\n", STACKOFFSET );
1729
1730 /* Save the 16-bit stack */
1731
1732 #ifdef __svr4__
1733 fprintf( outfile,"\tdata16\n");
1734 #endif
1735 fprintf( outfile, "\t.byte 0x64\n\tmovw %%ss,(%d)\n", STACKOFFSET + 2 );
1736 fprintf( outfile, "\t.byte 0x64\n\tmovw %%sp,(%d)\n", STACKOFFSET );
1737
1738 /* Transfer the arguments */
1739
1740 if (reg_func) BuildContext16( outfile );
1741 else if (*args) argsize = TransferArgs16To32( outfile, args, Cdecl );
1742 else if (thunk)
1743 {
1744 /* Get the stack selector base */
1745 fprintf( outfile, "\tmovw %%ss,%%ax\n" );
1746 fprintf( outfile, "\tandl $0xfff8,%%eax\n" );
1747 fprintf( outfile, "\tmovl " PREFIX "ldt_copy(%%eax),%%eax\n" );
1748 fprintf( outfile, "\tmovl %%eax,-24(%%ebp)\n" );
1749 /* Add the offset */
1750 fprintf( outfile, "\tleal -16(%%ebp),%%eax\n" );
1751 fprintf( outfile, "\taddl %%eax,-24(%%ebp)\n" );
1752 }
1753
1754 /* Get the address of the API function */
1755
1756 fprintf( outfile, "\tmovl -4(%%ebp),%%eax\n" );
1757
1758 /* If necessary, save %edx over the API function address */
1759
1760 if (!reg_func && short_ret)
1761 fprintf( outfile, "\tmovl %%edx,-4(%%ebp)\n" );
1762
1763 /* Restore %ebx and store the 32-bit stack pointer instead */
1764
1765 fprintf( outfile, "\tmovl %%ebx,%%ebp\n" );
1766 fprintf( outfile, "\tpopl %%ebx\n" );
1767 fprintf( outfile, "\tpushl %%ebp\n" );
1768
1769 /* Switch to the 32-bit stack */
1770
1771 fprintf( outfile, "\tpushl %%ds\n" );
1772 fprintf( outfile, "\tpopl %%ss\n" );
1773 fprintf( outfile, "\tleal -%d(%%ebp),%%esp\n",
1774 reg_func ? sizeof(CONTEXT) : 4 * strlen(args) );
1775 if (reg_func) /* Push the address of the context struct */
1776 fprintf( outfile, "\tpushl %%esp\n" );
1777
1778 /* Setup %ebp to point to the previous stack frame (built by CallTo16) */
1779
1780 fprintf( outfile, "\taddl $%d,%%ebp\n", STRUCTOFFSET(STACK32FRAME,ebp) );
1781
1782 /* Print the debug information before the call */
1783
1784 if (debugging && !thunk)
1785 {
1786 int ftype = 0;
1787
1788 if (Cdecl) ftype |= 4;
1789 if (reg_func) ftype |= 2;
1790 if (short_ret) ftype |= 1;
1791
1792 fprintf( outfile, "\tpushl %%eax\n" );
1793 fprintf( outfile, "\tpushl $Profile_%s\n", profile );
1794 fprintf( outfile, "\tpushl $%d\n", ftype );
1795 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallFrom16\n" );
1796 fprintf( outfile, "\tpopl %%eax\n" );
1797 fprintf( outfile, "\tpopl %%eax\n" );
1798 fprintf( outfile, "\tpopl %%eax\n" );
1799 }
1800
1801 /* Call the entry point */
1802
1803 if (thunk)
1804 {
1805 fprintf( outfile, "\tpushl %%ebp\n" );
1806 fprintf( outfile, "\tleal -4(%%esp), %%ebp\n" );
1807 fprintf( outfile, "\tcall *%%eax\n" );
1808 fprintf( outfile, "\tpopl %%ebp\n" );
1809 }
1810 else
1811 fprintf( outfile, "\tcall *%%eax\n" );
1812
1813
1814 /* Print the debug information after the call */
1815
1816 if (debugging && !thunk)
1817 {
1818 if (reg_func)
1819 {
1820 /* Push again the address of the context struct in case */
1821 /* it has been removed by an stdcall function */
1822 fprintf( outfile, "\tleal -%d(%%ebp),%%esp\n",
1823 sizeof(CONTEXT) + STRUCTOFFSET(STACK32FRAME,ebp) );
1824 fprintf( outfile, "\tpushl %%esp\n" );
1825 }
1826 fprintf( outfile, "\tpushl %%eax\n" );
1827 fprintf( outfile, "\tpushl $%d\n", reg_func ? 2 : (short_ret ? 1 : 0));
1828 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallFrom16Ret\n" );
1829 fprintf( outfile, "\tpopl %%eax\n" );
1830 fprintf( outfile, "\tpopl %%eax\n" );
1831 }
1832
1833 /* Restore the 16-bit stack */
1834
1835 #ifdef __svr4__
1836 fprintf( outfile, "\tdata16\n");
1837 #endif
1838 fprintf( outfile, "\t.byte 0x64\n\tmovw (%d),%%ss\n", STACKOFFSET + 2 );
1839 fprintf( outfile, "\t.byte 0x64\n\tmovzwl (%d),%%esp\n", STACKOFFSET );
1840 fprintf( outfile, "\t.byte 0x64\n\tpopl (%d)\n", STACKOFFSET );
1841
1842 if (reg_func)
1843 {
1844 /* Calc the arguments size */
1845 while (*args)
1846 {
1847 switch(*args)
1848 {
1849 case 'w':
1850 case 's':
1851 argsize += 2;
1852 break;
1853 case 'p':
1854 case 't':
1855 case 'l':
1856 case 'T':
1857 argsize += 4;
1858 break;
1859 default:
1860 fprintf( stderr, "Unknown arg type '%c'\n", *args );
1861 }
1862 args++;
1863 }
1864
1865 /* Restore registers from the context structure */
1866 RestoreContext16( outfile );
1867 }
1868 else
1869 {
1870 /* Restore high 16 bits of ebp */
1871 fprintf( outfile, "\tpopl %%ebp\n" );
1872
1873 /* Restore ds and es */
1874 fprintf( outfile, "\tincl %%esp\n" ); /* Remove mutex count */
1875 fprintf( outfile, "\tincl %%esp\n" );
1876 fprintf( outfile, "\tpopl %%edx\n" ); /* Remove ip and fs */
1877 fprintf( outfile, "\tmovw %%dx,%%fs\n" ); /* and restore fs */
1878 fprintf( outfile, "\tpopl %%edx\n" ); /* Remove cs and ds */
1879 fprintf( outfile, "\tmovw %%dx,%%ds\n" ); /* and restore ds */
1880 fprintf( outfile, "\t.byte 0x66\n\tpopl %%es\n" ); /* Restore es */
1881
1882 if (short_ret) fprintf( outfile, "\tpopl %%edx\n" ); /* Restore edx */
1883 else
1884 {
1885 /* Get the return value into dx:ax */
1886 fprintf( outfile, "\tmovl %%eax,%%edx\n" );
1887 fprintf( outfile, "\tshrl $16,%%edx\n" );
1888 /* Remove API entry point */
1889 fprintf( outfile, "\taddl $4,%%esp\n" );
1890 }
1891
1892 /* Restore low 16 bits of ebp */
1893 fprintf( outfile, "\tpopw %%bp\n" );
1894 }
1895
1896 /* Remove the arguments and return */
1897
1898 if (thunk)
1899 {
1900 fprintf( outfile, "\tpopl %%ebx\n" );
1901 fprintf( outfile, "\txorb %%ch,%%ch\n" );
1902 fprintf( outfile, "\taddw %%cx, %%sp\n" );
1903 fprintf( outfile, "\tpushl %%ebx\n" );
1904 fprintf( outfile, "\t.byte 0x66\n" );
1905 fprintf( outfile, "\tlret\n" );
1906 }
1907 else if (argsize && !Cdecl)
1908 {
1909 fprintf( outfile, "\t.byte 0x66\n" );
1910 fprintf( outfile, "\tlret $%d\n", argsize );
1911 }
1912 else
1913 {
1914 fprintf( outfile, "\t.byte 0x66\n" );
1915 fprintf( outfile, "\tlret\n" );
1916 }
1917 }
1918
1919
1920 /*******************************************************************
1921 * BuildCallTo16Func
1922 *
1923 * Build a Wine-to-16-bit callback function.
1924 *
1925 * Stack frame of the callback function:
1926 * ... ...
1927 * (ebp+16) arg2
1928 * (ebp+12) arg1
1929 * (ebp+8) func to call
1930 * (ebp+4) return address
1931 * (ebp) previous ebp
1932 *
1933 * Prototypes for the CallTo16 functions:
1934 * extern WINAPI WORD CallTo16_word_xxx( FARPROC16 func, args... );
1935 * extern WINAPI LONG CallTo16_long_xxx( FARPROC16 func, args... );
1936 * extern WINAPI void CallTo16_sreg_( const CONTEXT *context, int nb_args );
1937 * extern WINAPI void CallTo16_lreg_( const CONTEXT *context, int nb_args );
1938 */
1939 static void BuildCallTo16Func( FILE *outfile, char *profile )
1940 {
1941 int short_ret = 0;
1942 int reg_func = 0;
1943 char *args = profile + 5;
1944
1945 if (!strncmp( "word_", profile, 5 )) short_ret = 1;
1946 else if (!strncmp( "sreg_", profile, 5 )) reg_func = 1;
1947 else if (!strncmp( "lreg_", profile, 5 )) reg_func = 2;
1948 else if (strncmp( "long_", profile, 5 ))
1949 {
1950 fprintf( stderr, "Invalid function name '%s'.\n", profile );
1951 exit(1);
1952 }
1953
1954 /* Function header */
1955
1956 fprintf( outfile, "\n\t.align 4\n" );
1957 #ifdef USE_STABS
1958 fprintf( outfile, ".stabs \"CallTo16_%s:F1\",36,0,0," PREFIX "CallTo16_%s\n",
1959 profile, profile);
1960 #endif
1961 fprintf( outfile, "\t.globl " PREFIX "CallTo16_%s\n", profile );
1962 fprintf( outfile, PREFIX "CallTo16_%s:\n", profile );
1963
1964 /* Entry code */
1965
1966 fprintf( outfile, "\tpushl %%ebp\n" );
1967 fprintf( outfile, "\tmovl %%esp,%%ebp\n" );
1968
1969 /* Save the 32-bit registers */
1970
1971 fprintf( outfile, "\tpushl %%ebx\n" );
1972 fprintf( outfile, "\tpushl %%ecx\n" );
1973 fprintf( outfile, "\tpushl %%edx\n" );
1974 fprintf( outfile, "\tpushl %%esi\n" );
1975 fprintf( outfile, "\tpushl %%edi\n" );
1976
1977 /* Enter Win16 Mutex */
1978
1979 fprintf( outfile, "\tcall " PREFIX "SYSLEVEL_EnterWin16Lock\n" );
1980
1981 /* Print debugging info */
1982
1983 if (debugging)
1984 {
1985 /* Push the address of the first argument */
1986 fprintf( outfile, "\tleal 8(%%ebp),%%eax\n" );
1987 fprintf( outfile, "\tpushl $%d\n", reg_func ? -1 : strlen(args) );
1988 fprintf( outfile, "\tpushl %%eax\n" );
1989 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallTo16\n" );
1990 fprintf( outfile, "\tpopl %%eax\n" );
1991 fprintf( outfile, "\tpopl %%eax\n" );
1992 }
1993
1994 /* Call the actual CallTo16 routine (simulate a lcall) */
1995
1996 fprintf( outfile, "\tpushl %%cs\n" );
1997 fprintf( outfile, "\tcall do_callto16_%s\n", profile );
1998
1999 fprintf( outfile, "\tpushl %%eax\n" );
2000
2001 /* Print debugging info */
2002
2003 if (debugging)
2004 {
2005 fprintf( outfile, "\tpushl %%eax\n" );
2006 fprintf( outfile, "\tcall " PREFIX "RELAY_DebugCallTo16Ret\n" );
2007 fprintf( outfile, "\tpopl %%eax\n" );
2008 }
2009
2010 /* Leave Win16 Mutex */
2011
2012 fprintf( outfile, "\tcall " PREFIX "SYSLEVEL_LeaveWin16Lock\n" );
2013
2014 /* Restore the 32-bit registers */
2015
2016 fprintf( outfile, "\tpopl %%eax\n" );
2017 fprintf( outfile, "\tpopl %%edi\n" );
2018 fprintf( outfile, "\tpopl %%esi\n" );
2019 fprintf( outfile, "\tpopl %%edx\n" );
2020 fprintf( outfile, "\tpopl %%ecx\n" );
2021 fprintf( outfile, "\tpopl %%ebx\n" );
2022
2023 /* Exit code */
2024
2025 #if 0
2026 /* FIXME: this is a hack because of task.c */
2027 if (!strcmp( profile, "word_" ))
2028 {
2029 fprintf( outfile, ".globl " PREFIX "CALLTO16_Restore\n" );
2030 fprintf( outfile, PREFIX "CALLTO16_Restore:\n" );
2031 }
2032 #endif
2033 fprintf( outfile, "\tpopl %%ebp\n" );
2034 fprintf( outfile, "\tret $%d\n", 4 * strlen(args) + 4 );
2035
2036
2037 /* Start of the actual CallTo16 routine */
2038
2039 fprintf( outfile, "do_callto16_%s:\n", profile );
2040
2041 /* Save the 32-bit stack */
2042
2043 fprintf( outfile, "\t.byte 0x64\n\tpushl (%d)\n", STACKOFFSET );
2044 fprintf( outfile, "\tmovl %%ebp,%%ebx\n" );
2045 fprintf( outfile, "\tmovl %%esp,%%edx\n" );
2046
2047 if (reg_func)
2048 {
2049 /* Switch to the 16-bit stack, saving the current %%esp, */
2050 /* and adding the specified offset to the new sp */
2051 fprintf( outfile, "\t.byte 0x64\n\tmovzwl (%d),%%eax\n", STACKOFFSET );
2052 fprintf( outfile, "\tsubl 12(%%ebx),%%eax\n" ); /* Get the offset */
2053 #ifdef __svr4__
2054 fprintf( outfile,"\tdata16\n");
2055 #endif
2056 fprintf( outfile, "\t.byte 0x64\n\tmovw (%d),%%ss\n", STACKOFFSET + 2);
2057 fprintf( outfile, "\tmovl %%eax,%%esp\n" );
2058 fprintf( outfile, "\t.byte 0x64\n\tmovl %%edx,(%d)\n", STACKOFFSET );
2059
2060 /* Get the registers. ebx is handled later on. */
2061
2062 fprintf( outfile, "\tmovl 8(%%ebx),%%ebx\n" );
2063 fprintf( outfile, "\tmovl %d(%%ebx),%%eax\n", CONTEXTOFFSET(SegEs) );
2064 fprintf( outfile, "\tmovw %%ax,%%es\n" );
2065 fprintf( outfile, "\tmovl %d(%%ebx),%%eax\n", CONTEXTOFFSET(SegFs) );
2066 fprintf( outfile, "\tmovw %%ax,%%fs\n" );
2067 fprintf( outfile, "\tmovl %d(%%ebx),%%ebp\n", CONTEXTOFFSET(Ebp) );
2068 fprintf( outfile, "\tmovl %d(%%ebx),%%eax\n", CONTEXTOFFSET(Eax) );
2069 fprintf( outfile, "\tmovl %d(%%ebx),%%ecx\n", CONTEXTOFFSET(Ecx) );
2070 fprintf( outfile, "\tmovl %d(%%ebx),%%edx\n", CONTEXTOFFSET(Edx) );
2071 fprintf( outfile, "\tmovl %d(%%ebx),%%esi\n", CONTEXTOFFSET(Esi) );
2072 fprintf( outfile, "\tmovl %d(%%ebx),%%edi\n", CONTEXTOFFSET(Edi) );
2073
2074 /* Push the return address
2075 * With sreg suffix, we push 16:16 address (normal lret)
2076 * With lreg suffix, we push 16:32 address (0x66 lret, for KERNEL32_45)
2077 */
2078 if (reg_func == 1)
2079 fprintf( outfile, "\tpushl " PREFIX "CALLTO16_RetAddr_long\n" );
2080 else
2081 {
2082 fprintf( outfile, "\tpushw $0\n" );
2083 fprintf( outfile, "\tpushw " PREFIX "CALLTO16_RetAddr_eax+2\n" );
2084 fprintf( outfile, "\tpushw $0\n" );
2085 fprintf( outfile, "\tpushw " PREFIX "CALLTO16_RetAddr_eax\n" );
2086 }
2087
2088 /* Push the called routine address */
2089
2090 fprintf( outfile, "\tpushw %d(%%ebx)\n", CONTEXTOFFSET(SegCs) );
2091 fprintf( outfile, "\tpushw %d(%%ebx)\n", CONTEXTOFFSET(Eip) );
2092
2093 /* Get the 16-bit ds */
2094
2095 fprintf( outfile, "\tpushl %d(%%ebx)\n", CONTEXTOFFSET(SegDs) );
2096 /* Get ebx from the 32-bit stack */
2097 fprintf( outfile, "\tmovl %d(%%ebx),%%ebx\n", CONTEXTOFFSET(Ebx) );
2098 fprintf( outfile, "\tpopl %%ds\n" );
2099 }
2100 else /* not a register function */
2101 {
2102 int pos = 12; /* first argument position */
2103
2104 /* Switch to the 16-bit stack */
2105 #ifdef __svr4__
2106 fprintf( outfile,"\tdata16\n");
2107 #endif
2108 fprintf( outfile, "\t.byte 0x64\n\tmovw (%d),%%ss\n", STACKOFFSET + 2);
2109 fprintf( outfile, "\t.byte 0x64\n\tmovw (%d),%%sp\n", STACKOFFSET );
2110 fprintf( outfile, "\t.byte 0x64\n\tmovl %%edx,(%d)\n", STACKOFFSET );
2111
2112 /* Make %bp point to the previous stackframe (built by CallFrom16) */
2113 fprintf( outfile, "\tmovzwl %%sp,%%ebp\n" );
2114 fprintf( outfile, "\tleal %d(%%ebp),%%ebp\n",
2115 STRUCTOFFSET(STACK16FRAME,bp) );
2116
2117 /* Transfer the arguments */
2118
2119 while (*args)
2120 {
2121 switch(*args++)
2122 {
2123 case 'w': /* word */
2124 fprintf( outfile, "\tpushw %d(%%ebx)\n", pos );
2125 break;
2126 case 'l': /* long */
2127 fprintf( outfile, "\tpushl %d(%%ebx)\n", pos );
2128 break;
2129 default:
2130 fprintf( stderr, "Unexpected case '%c' in BuildCallTo16Func\n",
2131 args[-1] );
2132 }
2133 pos += 4;
2134 }
2135
2136 /* Push the return address */
2137
2138 fprintf( outfile, "\tpushl " PREFIX "CALLTO16_RetAddr_%s\n",
2139 short_ret ? "word" : "long" );
2140
2141 /* Push the called routine address */
2142
2143 fprintf( outfile, "\tpushl 8(%%ebx)\n" );
2144
2145 /* Set %fs to the value saved by the last CallFrom16 */
2146
2147 fprintf( outfile, "\tmovw -14(%%ebp),%%ax\n" );
2148 fprintf( outfile, "\tmovw %%ax,%%fs\n" );
2149
2150 /* Set %ds and %es (and %ax just in case) equal to %ss */
2151
2152 fprintf( outfile, "\tmovw %%ss,%%ax\n" );
2153 fprintf( outfile, "\tmovw %%ax,%%ds\n" );
2154 fprintf( outfile, "\tmovw %%ax,%%es\n" );
2155 }
2156
2157 /* Jump to the called routine */
2158
2159 fprintf( outfile, "\t.byte 0x66\n" );
2160 fprintf( outfile, "\tlret\n" );
2161 }
2162
2163
2164 /*******************************************************************
2165 * BuildRet16Func
2166 *
2167 * Build the return code for 16-bit callbacks
2168 */
2169 static void BuildRet16Func( FILE *outfile )
2170 {
2171 fprintf( outfile, "\t.globl " PREFIX "CALLTO16_Ret_word\n" );
2172 fprintf( outfile, "\t.globl " PREFIX "CALLTO16_Ret_long\n" );
2173 fprintf( outfile, "\t.globl " PREFIX "CALLTO16_Ret_eax\n" );
2174
2175 fprintf( outfile, PREFIX "CALLTO16_Ret_word:\n" );
2176 fprintf( outfile, "\txorl %%edx,%%edx\n" );
2177
2178 /* Put return value into %eax */
2179
2180 fprintf( outfile, PREFIX "CALLTO16_Ret_long:\n" );
2181 fprintf( outfile, "\tshll $16,%%edx\n" );
2182 fprintf( outfile, "\tmovw %%ax,%%dx\n" );
2183 fprintf( outfile, "\tmovl %%edx,%%eax\n" );
2184 fprintf( outfile, PREFIX "CALLTO16_Ret_eax:\n" );
2185
2186 /* Restore 32-bit segment registers */
2187
2188 fprintf( outfile, "\tmovw $0x%04x,%%bx\n", Data_Selector );
2189 #ifdef __svr4__
2190 fprintf( outfile, "\tdata16\n");
2191 #endif
2192 fprintf( outfile, "\tmovw %%bx,%%ds\n" );
2193 #ifdef __svr4__
2194 fprintf( outfile, "\tdata16\n");
2195 #endif
2196 fprintf( outfile, "\tmovw %%bx,%%es\n" );
2197
2198 fprintf( outfile, "\tmovw " PREFIX "SYSLEVEL_Win16CurrentTeb,%%fs\n" );
2199
2200 /* Restore the 32-bit stack */
2201
2202 #ifdef __svr4__
2203 fprintf( outfile, "\tdata16\n");
2204 #endif
2205 fprintf( outfile, "\tmovw %%bx,%%ss\n" );
2206 fprintf( outfile, "\t.byte 0x64\n\tmovl (%d),%%esp\n", STACKOFFSET );
2207 fprintf( outfile, "\t.byte 0x64\n\tpopl (%d)\n", STACKOFFSET );
2208
2209 /* Return to caller */
2210
2211 fprintf( outfile, "\tlret\n" );
2212
2213 /* Declare the return address variables */
2214
2215 fprintf( outfile, "\t.data\n" );
2216 fprintf( outfile, "\t.globl " PREFIX "CALLTO16_RetAddr_word\n" );
2217 fprintf( outfile, "\t.globl " PREFIX "CALLTO16_RetAddr_long\n" );
2218 fprintf( outfile, "\t.globl " PREFIX "CALLTO16_RetAddr_eax\n" );
2219 fprintf( outfile, PREFIX "CALLTO16_RetAddr_word:\t.long 0\n" );
2220 fprintf( outfile, PREFIX "CALLTO16_RetAddr_long:\t.long 0\n" );
2221 fprintf( outfile, PREFIX "CALLTO16_RetAddr_eax:\t.long 0\n" );
2222 fprintf( outfile, "\t.text\n" );
2223 }
2224
2225 /*******************************************************************
2226 * BuildCallTo32CBClient
2227 *
2228 * Call a CBClient relay stub from 32-bit code (KERNEL.620).
2229 *
2230 * Since the relay stub is itself 32-bit, this should not be a problem;
2231 * unfortunately, the relay stubs are expected to switch back to a
2232 * 16-bit stack (and 16-bit code) after completion :-(
2233 *
2234 * This would conflict with our 16- vs. 32-bit stack handling, so
2235 * we simply switch *back* to our 32-bit stack before returning to
2236 * the caller ...
2237 *
2238 * The CBClient relay stub expects to be called with the following
2239 * 16-bit stack layout, and with ebp and ebx pointing into the 16-bit
2240 * stack at the designated places:
2241 *
2242 * ...
2243 * (ebp+14) original arguments to the callback routine
2244 * (ebp+10) far return address to original caller
2245 * (ebp+6) Thunklet target address
2246 * (ebp+2) Thunklet relay ID code
2247 * (ebp) BP (saved by CBClientGlueSL)
2248 * (ebp-2) SI (saved by CBClientGlueSL)
2249 * (ebp-4) DI (saved by CBClientGlueSL)
2250 * (ebp-6) DS (saved by CBClientGlueSL)
2251 *
2252 * ... buffer space used by the 16-bit side glue for temp copies
2253 *
2254 * (ebx+4) far return address to 16-bit side glue code
2255 * (ebx) saved 16-bit ss:sp (pointing to ebx+4)
2256 *
2257 * The 32-bit side glue code accesses both the original arguments (via ebp)
2258 * and the temporary copies prepared by the 16-bit side glue (via ebx).
2259 * After completion, the stub will load ss:sp from the buffer at ebx
2260 * and perform a far return to 16-bit code.
2261 *
2262 * To trick the relay stub into returning to us, we replace the 16-bit
2263 * return address to the glue code by a cs:ip pair pointing to our
2264 * return entry point (the original return address is saved first).
2265 * Our return stub thus called will then reload the 32-bit ss:esp and
2266 * return to 32-bit code (by using and ss:esp value that we have also
2267 * pushed onto the 16-bit stack before and a cs:eip values found at
2268 * that position on the 32-bit stack). The ss:esp to be restored is
2269 * found relative to the 16-bit stack pointer at:
2270 *
2271 * (ebx-4) ss (flat)
2272 * (ebx-8) sp (32-bit stack pointer)
2273 *
2274 * The second variant of this routine, CALL32_CBClientEx, which is used
2275 * to implement KERNEL.621, has to cope with yet another problem: Here,
2276 * the 32-bit side directly returns to the caller of the CBClient thunklet,
2277 * restoring registers saved by CBClientGlueSL and cleaning up the stack.
2278 * As we have to return to our 32-bit code first, we have to adapt the
2279 * layout of our temporary area so as to include values for the registers
2280 * that are to be restored, and later (in the implementation of KERNEL.621)
2281 * we *really* restore them. The return stub restores DS, DI, SI, and BP
2282 * from the stack, skips the next 8 bytes (CBClient relay code / target),
2283 * and then performs a lret NN, where NN is the number of arguments to be
2284 * removed. Thus, we prepare our temporary area as follows:
2285 *
2286 * (ebx+22) 16-bit cs (this segment)
2287 * (ebx+20) 16-bit ip ('16-bit' return entry point)
2288 * (ebx+16) 32-bit ss (flat)
2289 * (ebx+12) 32-bit sp (32-bit stack pointer)
2290 * (ebx+10) 16-bit bp (points to ebx+24)
2291 * (ebx+8) 16-bit si (ignored)
2292 * (ebx+6) 16-bit di (ignored)
2293 * (ebx+4) 16-bit ds (we actually use the flat DS here)
2294 * (ebx+2) 16-bit ss (16-bit stack segment)
2295 * (ebx+0) 16-bit sp (points to ebx+4)
2296 *
2297 * Note that we ensure that DS is not changed and remains the flat segment,
2298 * and the 32-bit stack pointer our own return stub needs fits just
2299 * perfectly into the 8 bytes that are skipped by the Windows stub.
2300 * One problem is that we have to determine the number of removed arguments,
2301 * as these have to be really removed in KERNEL.621. Thus, the BP value
2302 * that we place in the temporary area to be restored, contains the value
2303 * that SP would have if no arguments were removed. By comparing the actual
2304 * value of SP with this value in our return stub we can compute the number
2305 * of removed arguments. This is then returned to KERNEL.621.
2306 *
2307 * The stack layout of this function:
2308 * (ebp+20) nArgs pointer to variable receiving nr. of args (Ex only)
2309 * (ebp+16) esi pointer to caller's esi value
2310 * (ebp+12) arg ebp value to be set for relay stub
2311 * (ebp+8) func CBClient relay stub address
2312 * (ebp+4) ret addr
2313 * (ebp) ebp
2314 */
2315 static void BuildCallTo32CBClient( FILE *outfile, BOOL isEx )
2316 {
2317 char *name = isEx? "CBClientEx" : "CBClient";
2318 int size = isEx? 24 : 12;
2319
2320 /* Function header */
2321
2322 fprintf( outfile, "\n\t.align 4\n" );
2323 #ifdef USE_STABS
2324 fprintf( outfile, ".stabs \"CALL32_%s:F1\",36,0,0," PREFIX "CALL32_%s\n",
2325 name, name );
2326 #endif
2327 fprintf( outfile, "\t.globl " PREFIX "CALL32_%s\n", name );
2328 fprintf( outfile, PREFIX "CALL32_%s:\n", name );
2329
2330 /* Entry code */
2331
2332 fprintf( outfile, "\tpushl %%ebp\n" );
2333 fprintf( outfile, "\tmovl %%esp,%%ebp\n" );
2334 fprintf( outfile, "\tpushl %%edi\n" );
2335 fprintf( outfile, "\tpushl %%esi\n" );
2336 fprintf( outfile, "\tpushl %%ebx\n" );
2337
2338 /* Get the 16-bit stack */
2339
2340 fprintf( outfile, "\t.byte 0x64\n\tmovl (%d),%%ebx\n", STACKOFFSET);
2341
2342 /* Convert it to a flat address */
2343
2344 fprintf( outfile, "\tshldl $16,%%ebx,%%eax\n" );
2345 fprintf( outfile, "\tandl $0xfff8,%%eax\n" );
2346 fprintf( outfile, "\tmovl " PREFIX "ldt_copy(%%eax),%%esi\n" );
2347 fprintf( outfile, "\tmovw %%bx,%%ax\n" );
2348 fprintf( outfile, "\taddl %%eax,%%esi\n" );
2349
2350 /* Allocate temporary area (simulate STACK16_PUSH) */
2351
2352 fprintf( outfile, "\tpushf\n" );
2353 fprintf( outfile, "\tcld\n" );
2354 fprintf( outfile, "\tleal -%d(%%esi), %%edi\n", size );
2355 fprintf( outfile, "\tmovl $%d, %%ecx\n", sizeof(STACK16FRAME) );
2356 fprintf( outfile, "\trep\n\tmovsb\n" );
2357 fprintf( outfile, "\tpopf\n" );
2358
2359 fprintf( outfile, "\t.byte 0x64\n\tsubw $%d,(%d)\n", size, STACKOFFSET );
2360
2361 fprintf( outfile, "\tpushl %%edi\n" ); /* remember address */
2362
2363 /* Set up temporary area */
2364
2365 if ( !isEx )
2366 {
2367 fprintf( outfile, "\tleal 4(%%edi), %%edi\n" );
2368
2369 fprintf( outfile, "\tleal -8(%%esp), %%eax\n" );
2370 fprintf( outfile, "\tmovl %%eax, -8(%%edi)\n" ); /* 32-bit sp */
2371
2372 fprintf( outfile, "\tmovl %%ss, %%ax\n" );
2373 fprintf( outfile, "\tandl $0x0000ffff, %%eax\n" );
2374 fprintf( outfile, "\tmovl %%eax, -4(%%edi)\n" ); /* 32-bit ss */
2375
2376 fprintf( outfile, "\taddl $%d, %%ebx\n", sizeof(STACK16FRAME)-size+4 + 4 );
2377 fprintf( outfile, "\tmovl %%ebx, 0(%%edi)\n" ); /* 16-bit ss:sp */
2378
2379 fprintf( outfile, "\tmovl " PREFIX "CALL32_%s_RetAddr, %%eax\n", name );
2380 fprintf( outfile, "\tmovl %%eax, 4(%%edi)\n" ); /* overwrite return address */
2381 }
2382 else
2383 {
2384 fprintf( outfile, "\taddl $%d, %%ebx\n", sizeof(STACK16FRAME)-size+4 );
2385 fprintf( outfile, "\tmovl %%ebx, 0(%%edi)\n" );
2386
2387 fprintf( outfile, "\tmovl %%ds, %%ax\n" );
2388 fprintf( outfile, "\tmovw %%ax, 4(%%edi)\n" );
2389
2390 fprintf( outfile, "\taddl $20, %%ebx\n" );
2391 fprintf( outfile, "\tmovw %%bx, 10(%%edi)\n" );
2392
2393 fprintf( outfile, "\tleal -8(%%esp), %%eax\n" );
2394 fprintf( outfile, "\tmovl %%eax, 12(%%edi)\n" );
2395
2396 fprintf( outfile, "\tmovl %%ss, %%ax\n" );
2397 fprintf( outfile, "\tandl $0x0000ffff, %%eax\n" );
2398 fprintf( outfile, "\tmovl %%eax, 16(%%edi)\n" );
2399
2400 fprintf( outfile, "\tmovl " PREFIX "CALL32_%s_RetAddr, %%eax\n", name );
2401 fprintf( outfile, "\tmovl %%eax, 20(%%edi)\n" );
2402 }
2403
2404 /* Set up registers and call CBClient relay stub (simulating a far call) */
2405
2406 fprintf( outfile, "\tmovl 16(%%ebp), %%esi\n" );
2407 fprintf( outfile, "\tmovl (%%esi), %%esi\n" );
2408
2409 fprintf( outfile, "\tmovl %%edi, %%ebx\n" );
2410 fprintf( outfile, "\tmovl 8(%%ebp), %%eax\n" );
2411 fprintf( outfile, "\tmovl 12(%%ebp), %%ebp\n" );
2412
2413 fprintf( outfile, "\tpushl %%cs\n" );
2414 fprintf( outfile, "\tcall *%%eax\n" );
2415
2416 /* Return new esi value to caller */
2417
2418 fprintf( outfile, "\tmovl 32(%%esp), %%edi\n" );
2419 fprintf( outfile, "\tmovl %%esi, (%%edi)\n" );
2420
2421 /* Cleanup temporary area (simulate STACK16_POP) */
2422
2423 fprintf( outfile, "\tpop %%esi\n" );
2424
2425 fprintf( outfile, "\tpushf\n" );
2426 fprintf( outfile, "\tstd\n" );
2427 fprintf( outfile, "\tdec %%esi\n" );
2428 fprintf( outfile, "\tleal %d(%%esi), %%edi\n", size );
2429 fprintf( outfile, "\tmovl $%d, %%ecx\n", sizeof(STACK16FRAME) );
2430 fprintf( outfile, "\trep\n\tmovsb\n" );
2431 fprintf( outfile, "\tpopf\n" );
2432
2433 fprintf( outfile, "\t.byte 0x64\n\taddw $%d,(%d)\n", size, STACKOFFSET );
2434
2435 /* Return argument size to caller */
2436 if ( isEx )
2437 {
2438 fprintf( outfile, "\tmovl 32(%%esp), %%ebx\n" );
2439 fprintf( outfile, "\tmovl %%ebp, (%%ebx)\n" );
2440 }
2441
2442 /* Restore registers and return */
2443
2444 fprintf( outfile, "\tpopl %%ebx\n" );
2445 fprintf( outfile, "\tpopl %%esi\n" );
2446 fprintf( outfile, "\tpopl %%edi\n" );
2447 fprintf( outfile, "\tpopl %%ebp\n" );
2448 fprintf( outfile, "\tret\n" );
2449
2450 /* '16-bit' return stub */
2451
2452 fprintf( outfile, "\t.globl " PREFIX "CALL32_%s_Ret\n", name );
2453 fprintf( outfile, PREFIX "CALL32_%s_Ret:\n", name );
2454
2455 if ( !isEx )
2456 {
2457 fprintf( outfile, "\tmovzwl %%sp, %%ebx\n" );
2458 fprintf( outfile, "\tlssl %%ss:-16(%%ebx), %%esp\n" );
2459 }
2460 else
2461 {
2462 fprintf( outfile, "\tmovzwl %%bp, %%ebx\n" );
2463 fprintf( outfile, "\tsubw %%bp, %%sp\n" );
2464 fprintf( outfile, "\tmovzwl %%sp, %%ebp\n" );
2465 fprintf( outfile, "\tlssl %%ss:-12(%%ebx), %%esp\n" );
2466 }
2467 fprintf( outfile, "\tlret\n" );
2468
2469 /* Declare the return address variable */
2470
2471 fprintf( outfile, "\t.data\n" );
2472 fprintf( outfile, "\t.globl " PREFIX "CALL32_%s_RetAddr\n", name );
2473 fprintf( outfile, PREFIX "CALL32_%s_RetAddr:\t.long 0\n", name );
2474 fprintf( outfile, "\t.text\n" );
2475 }
2476
2477
2478
2479 /*******************************************************************
2480 * BuildCallTo32LargeStack
2481 *
2482 * Build the function used to switch to the original 32-bit stack
2483 * before calling a 32-bit function from 32-bit code. This is used for
2484 * functions that need a large stack, like X bitmaps functions.
2485 *
2486 * The generated function has the following prototype:
2487 * int xxx( int (*func)(), void *arg );
2488 *
2489 * The pointer to the function can be retrieved by calling CALL32_Init,
2490 * which also takes care of saving the current 32-bit stack pointer.
2491 * Furthermore, CALL32_Init switches to a new stack and jumps to the
2492 * specified target address.
2493 *
2494 * NOTE: The CALL32_LargeStack routine may be recursively entered by the
2495 * same thread, but not concurrently entered by several threads.
2496 *
2497 * Stack layout of CALL32_Init:
2498 *
2499 * (esp+12) new stack address
2500 * (esp+8) target address
2501 * (esp+4) pointer to variable to receive CALL32_LargeStack address
2502 * (esp) ret addr
2503 *
2504 * Stack layout of CALL32_LargeStack:
2505 * ... ...
2506 * (ebp+12) arg
2507 * (ebp+8) func
2508 * (ebp+4) ret addr
2509 * (ebp) ebp
2510 */
2511 static void BuildCallTo32LargeStack( FILE *outfile )
2512 {
2513 /* Initialization function */
2514
2515 fprintf( outfile, "\n\t.align 4\n" );
2516 #ifdef USE_STABS
2517 fprintf( outfile, ".stabs \"CALL32_Init:F1\",36,0,0," PREFIX "CALL32_Init\n");
2518 #endif
2519 fprintf( outfile, "\t.globl " PREFIX "CALL32_Init\n" );
2520 fprintf( outfile, "\t.type " PREFIX "CALL32_Init,@function\n" );
2521 fprintf( outfile, PREFIX "CALL32_Init:\n" );
2522 fprintf( outfile, "\tmovl %%esp,CALL32_Original32_esp\n" );
2523 fprintf( outfile, "\tpopl %%eax\n" );
2524 fprintf( outfile, "\tpopl %%eax\n" );
2525 fprintf( outfile, "\tmovl $CALL32_LargeStack,(%%eax)\n" );
2526 fprintf( outfile, "\tpopl %%eax\n" );
2527 fprintf( outfile, "\tpopl %%esp\n" );
2528 fprintf( outfile, "\tpushl %%eax\n" );
2529 fprintf( outfile, "\tret\n" );
2530
2531 /* Function header */
2532
2533 fprintf( outfile, "\n\t.align 4\n" );
2534 #ifdef USE_STABS
2535 fprintf( outfile, ".stabs \"CALL32_LargeStack:F1\",36,0,0,CALL32_LargeStack\n");
2536 #endif
2537 fprintf( outfile, "CALL32_LargeStack:\n" );
2538
2539 /* Entry code */
2540
2541 fprintf( outfile, "\tpushl %%ebp\n" );
2542 fprintf( outfile, "\tmovl %%esp,%%ebp\n" );
2543
2544 /* Switch to the original 32-bit stack pointer */
2545
2546 fprintf( outfile, "\tcmpl $0, CALL32_RecursionCount\n" );
2547 fprintf( outfile, "\tjne CALL32_skip\n" );
2548 fprintf( outfile, "\tmovl CALL32_Original32_esp, %%esp\n" );
2549 fprintf( outfile, "CALL32_skip:\n" );
2550
2551 fprintf( outfile, "\tincl CALL32_RecursionCount\n" );
2552
2553 /* Transfer the argument and call the function */
2554
2555 fprintf( outfile, "\tpushl 12(%%ebp)\n" );
2556 fprintf( outfile, "\tcall *8(%%ebp)\n" );
2557
2558 /* Restore registers and return */
2559
2560 fprintf( outfile, "\tdecl CALL32_RecursionCount\n" );
2561
2562 fprintf( outfile, "\tmovl %%ebp,%%esp\n" );
2563 fprintf( outfile, "\tpopl %%ebp\n" );
2564 fprintf( outfile, "\tret\n" );
2565
2566 /* Data */
2567
2568 fprintf( outfile, "\t.data\n" );
2569 fprintf( outfile, "CALL32_Original32_esp:\t.long 0\n" );
2570 fprintf( outfile, "CALL32_RecursionCount:\t.long 0\n" );
2571 fprintf( outfile, "\t.text\n" );
2572 }
2573
2574
2575 /*******************************************************************
2576 * BuildCallFrom32Regs
2577 *
2578 * Build a 32-bit-to-Wine call-back function for a 'register' function.
2579 * 'args' is the number of dword arguments.
2580 *
2581 * Stack layout:
2582 * ...
2583 * (ebp+12) first arg
2584 * (ebp+8) ret addr to user code
2585 * (ebp+4) ret addr to relay code
2586 * (ebp+0) saved ebp
2587 * (ebp-128) buffer area to allow stack frame manipulation
2588 * (ebp-332) CONTEXT struct
2589 * (ebp-336) CONTEXT *argument
2590 * .... other arguments copied from (ebp+12)
2591 *
2592 * The entry point routine is called with a CONTEXT* extra argument,
2593 * following the normal args. In this context structure, EIP_reg
2594 * contains the return address to user code, and ESP_reg the stack
2595 * pointer on return (with the return address and arguments already
2596 * removed).
2597 */
2598 static void BuildCallFrom32Regs( FILE *outfile )
2599 {
2600 static const int STACK_SPACE = 128 + sizeof(CONTEXT);
2601
2602 /* Function header */
2603
2604 fprintf( outfile, "\n\t.align 4\n" );
2605 #ifdef USE_STABS
2606 fprintf( outfile, ".stabs \"CALL32_Regs:F1\",36,0,0," PREFIX "CALL32_Regs\n" );
2607 #endif
2608 fprintf( outfile, "\t.globl " PREFIX "CALL32_Regs\n" );
2609 fprintf( outfile, PREFIX "CALL32_Regs:\n" );
2610
2611 /* Allocate some buffer space on the stack */
2612
2613 fprintf( outfile, "\tpushl %%ebp\n" );
2614 fprintf( outfile, "\tmovl %%esp,%%ebp\n ");
2615 fprintf( outfile, "\tleal -%d(%%esp), %%esp\n", STACK_SPACE );
2616
2617 /* Build the context structure */
2618
2619 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(Eax) - STACK_SPACE );
2620 fprintf( outfile, "\tpushfl\n" );
2621 fprintf( outfile, "\tpopl %%eax\n" );
2622 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(EFlags) - STACK_SPACE );
2623 fprintf( outfile, "\tmovl 0(%%ebp),%%eax\n" );
2624 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(Ebp) - STACK_SPACE );
2625 fprintf( outfile, "\tmovl %%ebx,%d(%%ebp)\n", CONTEXTOFFSET(Ebx) - STACK_SPACE );
2626 fprintf( outfile, "\tmovl %%ecx,%d(%%ebp)\n", CONTEXTOFFSET(Ecx) - STACK_SPACE );
2627 fprintf( outfile, "\tmovl %%edx,%d(%%ebp)\n", CONTEXTOFFSET(Edx) - STACK_SPACE );
2628 fprintf( outfile, "\tmovl %%esi,%d(%%ebp)\n", CONTEXTOFFSET(Esi) - STACK_SPACE );
2629 fprintf( outfile, "\tmovl %%edi,%d(%%ebp)\n", CONTEXTOFFSET(Edi) - STACK_SPACE );
2630
2631 fprintf( outfile, "\txorl %%eax,%%eax\n" );
2632 fprintf( outfile, "\tmovw %%cs,%%ax\n" );
2633 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegCs) - STACK_SPACE );
2634 fprintf( outfile, "\tmovw %%es,%%ax\n" );
2635 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegEs) - STACK_SPACE );
2636 fprintf( outfile, "\tmovw %%fs,%%ax\n" );
2637 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegFs) - STACK_SPACE );
2638 fprintf( outfile, "\tmovw %%gs,%%ax\n" );
2639 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegGs) - STACK_SPACE );
2640 fprintf( outfile, "\tmovw %%ss,%%ax\n" );
2641 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegSs) - STACK_SPACE );
2642 fprintf( outfile, "\tmovw %%ds,%%ax\n" );
2643 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(SegDs) - STACK_SPACE );
2644 fprintf( outfile, "\tmovw %%ax,%%es\n" ); /* set %es equal to %ds just in case */
2645
2646 fprintf( outfile, "\tmovl $0x%x,%%eax\n", CONTEXT_FULL );
2647 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(ContextFlags) - STACK_SPACE );
2648
2649 fprintf( outfile, "\tmovl 8(%%ebp),%%eax\n" ); /* Get %eip at time of call */
2650 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(Eip) - STACK_SPACE );
2651
2652 /* Transfer the arguments */
2653
2654 fprintf( outfile, "\tmovl 4(%%ebp),%%ebx\n" ); /* get relay code addr */
2655 fprintf( outfile, "\tpushl %%esp\n" ); /* push ptr to context struct */
2656 fprintf( outfile, "\tmovzbl 4(%%ebx),%%ecx\n" ); /* fetch number of args to copy */
2657 fprintf( outfile, "\tjecxz 1f\n" );
2658 fprintf( outfile, "\tsubl %%ecx,%%esp\n" );
2659 fprintf( outfile, "\tleal 12(%%ebp),%%esi\n" ); /* get %esp at time of call */
2660 fprintf( outfile, "\tmovl %%esp,%%edi\n" );
2661 fprintf( outfile, "\tshrl $2,%%ecx\n" );
2662 fprintf( outfile, "\tcld\n" );
2663 fprintf( outfile, "\trep\n\tmovsl\n" ); /* copy args */
2664
2665 fprintf( outfile, "1:\tmovzbl 5(%%ebx),%%eax\n" ); /* fetch number of args to remove */
2666 fprintf( outfile, "\tleal 12(%%ebp,%%eax),%%eax\n" );
2667 fprintf( outfile, "\tmovl %%eax,%d(%%ebp)\n", CONTEXTOFFSET(Esp) - STACK_SPACE );
2668
2669 /* Call the entry point */
2670
2671 fprintf( outfile, "\tcall *0(%%ebx)\n" );
2672
2673 /* Store %eip and %ebp onto the new stack */
2674
2675 fprintf( outfile, "\tmovl %d(%%ebp),%%edx\n", CONTEXTOFFSET(Esp) - STACK_SPACE );
2676 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(Eip) - STACK_SPACE );
2677 fprintf( outfile, "\tmovl %%eax,-4(%%edx)\n" );
2678 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(Ebp) - STACK_SPACE );
2679 fprintf( outfile, "\tmovl %%eax,-8(%%edx)\n" );
2680
2681 /* Restore the context structure */
2682
2683 /* Note: we don't bother to restore %cs, %ds and %ss
2684 * changing them in 32-bit code is a recipe for disaster anyway
2685 */
2686 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(SegEs) - STACK_SPACE );
2687 fprintf( outfile, "\tmovw %%ax,%%es\n" );
2688 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(SegFs) - STACK_SPACE );
2689 fprintf( outfile, "\tmovw %%ax,%%fs\n" );
2690 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(SegGs) - STACK_SPACE );
2691 fprintf( outfile, "\tmovw %%ax,%%gs\n" );
2692
2693 fprintf( outfile, "\tmovl %d(%%ebp),%%edi\n", CONTEXTOFFSET(Edi) - STACK_SPACE );
2694 fprintf( outfile, "\tmovl %d(%%ebp),%%esi\n", CONTEXTOFFSET(Esi) - STACK_SPACE );
2695 fprintf( outfile, "\tmovl %d(%%ebp),%%edx\n", CONTEXTOFFSET(Edx) - STACK_SPACE );
2696 fprintf( outfile, "\tmovl %d(%%ebp),%%ecx\n", CONTEXTOFFSET(Ecx) - STACK_SPACE );
2697 fprintf( outfile, "\tmovl %d(%%ebp),%%ebx\n", CONTEXTOFFSET(Ebx) - STACK_SPACE );
2698
2699 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(EFlags) - STACK_SPACE );
2700 fprintf( outfile, "\tpushl %%eax\n" );
2701 fprintf( outfile, "\tpopfl\n" );
2702 fprintf( outfile, "\tmovl %d(%%ebp),%%eax\n", CONTEXTOFFSET(Eax) - STACK_SPACE );
2703
2704 fprintf( outfile, "\tmovl %d(%%ebp),%%ebp\n", CONTEXTOFFSET(Esp) - STACK_SPACE );
2705 fprintf( outfile, "\tleal -8(%%ebp),%%esp\n" );
2706 fprintf( outfile, "\tpopl %%ebp\n" );
2707 fprintf( outfile, "\tret\n" );
2708 }
2709
2710
2711 /*******************************************************************
2712 * BuildSpec
2713 *
2714 * Build the spec files
2715 */
2716 static int BuildSpec( FILE *outfile, int argc, char *argv[] )
2717 {
2718 int i;
2719 for (i = 2; i < argc; i++)
2720 if (BuildSpecFile( outfile, argv[i] ) < 0) return -1;
2721 return 0;
2722 }
2723
2724
2725 /*******************************************************************
2726 * BuildCallFrom16
2727 *
2728 * Build the 16-bit-to-Wine callbacks
2729 */
2730 static int BuildCallFrom16( FILE *outfile, char * outname, int argc, char *argv[] )
2731 {
2732 int i;
2733 #ifdef USE_STABS
2734 char buffer[1024];
2735 #endif
2736
2737 /* File header */
2738
2739 fprintf( outfile, "/* File generated automatically. Do not edit! */\n\n" );
2740 fprintf( outfile, "\t.text\n" );
2741
2742 #ifdef USE_STABS
2743 fprintf( outfile, "\t.file\t\"%s\"\n", outname );
2744 getcwd(buffer, sizeof(buffer));
2745
2746 /*
2747 * The stabs help the internal debugger as they are an indication that it
2748 * is sensible to step into a thunk/trampoline.
2749 */
2750 fprintf( outfile, ".stabs \"%s/\",100,0,0,Code_Start\n", buffer);
2751 fprintf( outfile, ".stabs \"%s\",100,0,0,Code_Start\n", outname);
2752 fprintf( outfile, "\t.text\n" );
2753 fprintf( outfile, "\t.align 4\n" );
2754 fprintf( outfile, "Code_Start:\n\n" );
2755 #endif
2756 fprintf( outfile, PREFIX"CallFrom16_Start:\n" );
2757 fprintf( outfile, "\t.globl "PREFIX"CallFrom16_Start\n" );
2758
2759 /* Build the callback functions */
2760
2761 for (i = 2; i < argc; i++) BuildCallFrom16Func( outfile, argv[i] );
2762
2763 /* Build the thunk callback function */
2764
2765 BuildCallFrom16Func( outfile, "t_long_" );
2766
2767 /* Output the argument debugging strings */
2768
2769 if (debugging)
2770 {
2771 fprintf( outfile, "/* Argument strings */\n" );
2772 for (i = 2; i < argc; i++)
2773 {
2774 fprintf( outfile, "Profile_%s:\t", argv[i] );
2775 fprintf( outfile, STRING " \"%s\\0\"\n", argv[i] + 7 );
2776 }
2777 }
2778 fprintf( outfile, PREFIX"CallFrom16_End:\n" );
2779 fprintf( outfile, "\t.globl "PREFIX"CallFrom16_End\n" );
2780
2781 #ifdef USE_STABS
2782 fprintf( outfile, "\t.text\n");
2783 fprintf( outfile, "\t.stabs \"\",100,0,0,.Letext\n");
2784 fprintf( outfile, ".Letext:\n");
2785 #endif
2786
2787 return 0;
2788 }
2789
2790
2791 /*******************************************************************
2792 * BuildCallTo16
2793 *
2794 * Build the Wine-to-16-bit callbacks
2795 */
2796 static int BuildCallTo16( FILE *outfile, char * outname, int argc, char *argv[] )
2797 {
2798 char buffer[1024];
2799 FILE *infile;
2800
2801 if (argc > 2)
2802 {
2803 infile = fopen( argv[2], "r" );
2804 if (!infile)
2805 {
2806 perror( argv[2] );
2807 exit( 1 );
2808 }
2809 }
2810 else infile = stdin;
2811
2812 /* File header */
2813
2814 fprintf( outfile, "/* File generated automatically. Do not edit! */\n\n" );
2815 fprintf( outfile, "\t.text\n" );
2816
2817 #ifdef USE_STABS
2818 fprintf( outfile, "\t.file\t\"%s\"\n", outname );
2819 getcwd(buffer, sizeof(buffer));
2820
2821 /*
2822 * The stabs help the internal debugger as they are an indication that it
2823 * is sensible to step into a thunk/trampoline.
2824 */
2825 fprintf( outfile, ".stabs \"%s/\",100,0,0,Code_Start\n", buffer);
2826 fprintf( outfile, ".stabs \"%s\",100,0,0,Code_Start\n", outname);
2827 fprintf( outfile, "\t.text\n" );
2828 fprintf( outfile, "\t.align 4\n" );
2829 fprintf( outfile, "Code_Start:\n\n" );
2830 #endif
2831
2832 fprintf( outfile, "\t.globl " PREFIX "CALLTO16_Start\n" );
2833 fprintf( outfile, PREFIX "CALLTO16_Start:\n" );
2834
2835 /* Build the callback functions */
2836
2837 while (fgets( buffer, sizeof(buffer), infile ))
2838 {
2839 if (strstr( buffer, "### start build ###" )) break;
2840 }
2841 while (fgets( buffer, sizeof(buffer), infile ))
2842 {
2843 char *p = strstr( buffer, "CallTo16_" );
2844 if (p)
2845 {
2846 char *profile = p + strlen( "CallTo16_" );
2847 p = profile;
2848 while ((*p == '_') || isalpha(*p)) p++;
2849 *p = '\0';
2850 BuildCallTo16Func( outfile, profile );
2851 }
2852 if (strstr( buffer, "### stop build ###" )) break;
2853 }
2854
2855 /* Output the 16-bit return code */
2856
2857 BuildRet16Func( outfile );
2858
2859 /* Output the CBClient callback functions
2860 * (while this does not really 'call to 16-bit' code, it is placed
2861 * here so that its 16-bit return stub is defined within the CALLTO16
2862 * 16-bit segment)
2863 */
2864 BuildCallTo32CBClient( outfile, FALSE );
2865 BuildCallTo32CBClient( outfile, TRUE );
2866
2867
2868 fprintf( outfile, "\t.globl " PREFIX "CALLTO16_End\n" );
2869 fprintf( outfile, PREFIX "CALLTO16_End:\n" );
2870
2871 #ifdef USE_STABS
2872 fprintf( outfile, "\t.text\n");
2873 fprintf( outfile, "\t.stabs \"\",100,0,0,.Letext\n");
2874 fprintf( outfile, ".Letext:\n");
2875 #endif
2876
2877 fclose( infile );
2878 return 0;
2879 }
2880
2881
2882 /*******************************************************************
2883 * BuildCall32
2884 *
2885 * Build the 32-bit callbacks
2886 */
2887 static int BuildCall32( FILE *outfile, char * outname )
2888 {
2889 #ifdef USE_STABS
2890 char buffer[1024];
2891 #endif
2892
2893 /* File header */
2894
2895 fprintf( outfile, "/* File generated automatically. Do not edit! */\n\n" );
2896 fprintf( outfile, "\t.text\n" );
2897
2898 #ifdef __i386__
2899
2900 #ifdef USE_STABS
2901 fprintf( outfile, "\t.file\t\"%s\"\n", outname );
2902 getcwd(buffer, sizeof(buffer));
2903
2904 /*
2905 * The stabs help the internal debugger as they are an indication that it
2906 * is sensible to step into a thunk/trampoline.
2907 */
2908 fprintf( outfile, ".stabs \"%s/\",100,0,0,Code_Start\n", buffer);
2909 fprintf( outfile, ".stabs \"%s\",100,0,0,Code_Start\n", outname);
2910 fprintf( outfile, "\t.text\n" );
2911 fprintf( outfile, "\t.align 4\n" );
2912 fprintf( outfile, "Code_Start:\n" );
2913 #endif
2914
2915 /* Build the 32-bit large stack callback */
2916
2917 BuildCallTo32LargeStack( outfile );
2918
2919 /* Build the register callback function */
2920
2921 BuildCallFrom32Regs( outfile );
2922
2923 #ifdef USE_STABS
2924 fprintf( outfile, "\t.text\n");
2925 fprintf( outfile, "\t.stabs \"\",100,0,0,.Letext\n");
2926 fprintf( outfile, ".Letext:\n");
2927 #endif
2928
2929 #else /* __i386__ */
2930
2931 /* Just to avoid an empty file */
2932 fprintf( outfile, "\t.long 0\n" );
2933
2934 #endif /* __i386__ */
2935 return 0;
2936 }
2937
2938
2939 /*******************************************************************
2940 * usage
2941 */
2942 static void usage(void)
2943 {
2944 fprintf( stderr,
2945 "usage: build [-o outfile] -spec SPECNAMES\n"
2946 " build [-o outfile] -callfrom16 FUNCTION_PROFILES\n"
2947 " build [-o outfile] -callto16 FUNCTION_PROFILES\n"
2948 " build [-o outfile] -call32\n" );
2949 exit(1);
2950 }
2951
2952
2953 /*******************************************************************
2954 * main
2955 */
2956 int main(int argc, char **argv)
2957 {
2958 char *outname = NULL;
2959 FILE *outfile = stdout;
2960 int res = -1;
2961
2962 if (argc < 2) usage();
2963
2964 if (!strcmp( argv[1], "-o" ))
2965 {
2966 outname = argv[2];
2967 argv += 2;
2968 argc -= 2;
2969 if (argc < 2) usage();
2970 if (!(outfile = fopen( outname, "w" )))
2971 {
2972 fprintf( stderr, "Unable to create output file '%s'\n", outname );
2973 exit(1);
2974 }
2975 }
2976
2977 /* Retrieve the selector values; this assumes that we are building
2978 * the asm files on the platform that will also run them. Probably
2979 * a safe assumption to make.
2980 */
2981 GET_CS( Code_Selector );
2982 GET_DS( Data_Selector );
2983
2984 if (!strcmp( argv[1], "-spec" ))
2985 res = BuildSpec( outfile, argc, argv );
2986 else if (!strcmp( argv[1], "-callfrom16" ))
2987 res = BuildCallFrom16( outfile, outname, argc, argv );
2988 else if (!strcmp( argv[1], "-callto16" ))
2989 res = BuildCallTo16( outfile, outname, argc, argv );
2990 else if (!strcmp( argv[1], "-call32" ))
2991 res = BuildCall32( outfile, outname );
2992 else
2993 {
2994 fclose( outfile );
2995 unlink( outname );
2996 usage();
2997 }
2998
2999 fclose( outfile );
3000 if (res < 0)
3001 {
3002 unlink( outname );
3003 return 1;
3004 }
3005 return 0;
3006 }
widl and rpcrt4 development