1 /*
2 * 32-bit spec files
3 *
4 * Copyright 1993 Robert J. Amstadt
5 * Copyright 1995 Martin von Loewis
6 * Copyright 1995, 1996, 1997 Alexandre Julliard
7 * Copyright 1997 Eric Youngdale
8 * Copyright 1999 Ulrich Weigand
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 */
24
25 #include "config.h"
26 #include "wine/port.h"
27
28 #include <assert.h>
29 #include <ctype.h>
30 #include <stdarg.h>
31 #include <string.h>
32
33 #include "windef.h"
34 #include "winbase.h"
35 #include "wine/exception.h"
36 #include "build.h"
37
38
39 /* check if entry point needs a relay thunk */
40 static inline int needs_relay( const ORDDEF *odp )
41 {
42 /* skip nonexistent entry points */
43 if (!odp) return 0;
44 /* skip non-functions */
45 if ((odp->type != TYPE_STDCALL) && (odp->type != TYPE_CDECL)) return 0;
46 /* skip norelay and forward entry points */
47 if (odp->flags & (FLAG_NORELAY|FLAG_FORWARD)) return 0;
48 return 1;
49 }
50
51 /* check if dll will output relay thunks */
52 int has_relays( DLLSPEC *spec )
53 {
54 int i;
55
56 if (target_cpu != CPU_x86) return 0;
57
58 for (i = spec->base; i <= spec->limit; i++)
59 {
60 ORDDEF *odp = spec->ordinals[i];
61 if (needs_relay( odp )) return 1;
62 }
63 return 0;
64 }
65
66 /*******************************************************************
67 * output_relay_debug
68 *
69 * Output entry points for relay debugging
70 */
71 static void output_relay_debug( DLLSPEC *spec )
72 {
73 int i;
74 unsigned int j, args, flags;
75
76 /* first the table of entry point offsets */
77
78 output( "\t%s\n", get_asm_rodata_section() );
79 output( "\t.align %d\n", get_alignment(4) );
80 output( ".L__wine_spec_relay_entry_point_offsets:\n" );
81
82 for (i = spec->base; i <= spec->limit; i++)
83 {
84 ORDDEF *odp = spec->ordinals[i];
85
86 if (needs_relay( odp ))
87 output( "\t.long .L__wine_spec_relay_entry_point_%d-__wine_spec_relay_entry_points\n", i );
88 else
89 output( "\t.long 0\n" );
90 }
91
92 /* then the table of argument types */
93
94 output( "\t.align %d\n", get_alignment(4) );
95 output( ".L__wine_spec_relay_arg_types:\n" );
96
97 for (i = spec->base; i <= spec->limit; i++)
98 {
99 ORDDEF *odp = spec->ordinals[i];
100 unsigned int mask = 0;
101
102 if (needs_relay( odp ))
103 {
104 for (j = 0; j < 16 && odp->u.func.arg_types[j]; j++)
105 {
106 if (odp->u.func.arg_types[j] == 't') mask |= 1<< (j*2);
107 if (odp->u.func.arg_types[j] == 'W') mask |= 2<< (j*2);
108 }
109 }
110 output( "\t.long 0x%08x\n", mask );
111 }
112
113 /* then the relay thunks */
114
115 output( "\t.text\n" );
116 output( "__wine_spec_relay_entry_points:\n" );
117 output( "\tnop\n" ); /* to avoid 0 offset */
118
119 for (i = spec->base; i <= spec->limit; i++)
120 {
121 ORDDEF *odp = spec->ordinals[i];
122
123 if (!needs_relay( odp )) continue;
124
125 output( "\t.align %d\n", get_alignment(4) );
126 output( ".L__wine_spec_relay_entry_point_%d:\n", i );
127
128 if (odp->flags & FLAG_REGISTER)
129 output( "\tpushl %%eax\n" );
130 else
131 output( "\tpushl %%esp\n" );
132
133 args = strlen(odp->u.func.arg_types);
134 flags = 0;
135 if (odp->flags & FLAG_RET64) flags |= 1;
136 if (odp->type == TYPE_STDCALL) flags |= 2;
137 output( "\tpushl $%u\n", (flags << 24) | (args << 16) | (i - spec->base) );
138
139 if (UsePIC)
140 {
141 output( "\tcall %s\n", asm_name("__wine_spec_get_pc_thunk_eax") );
142 output( "1:\tleal .L__wine_spec_relay_descr-1b(%%eax),%%eax\n" );
143 }
144 else output( "\tmovl $.L__wine_spec_relay_descr,%%eax\n" );
145 output( "\tpushl %%eax\n" );
146
147 if (odp->flags & FLAG_REGISTER)
148 {
149 output( "\tcall *8(%%eax)\n" );
150 }
151 else
152 {
153 output( "\tcall *4(%%eax)\n" );
154 if (odp->type == TYPE_STDCALL)
155 output( "\tret $%u\n", args * get_ptr_size() );
156 else
157 output( "\tret\n" );
158 }
159 }
160 }
161
162 /*******************************************************************
163 * output_exports
164 *
165 * Output the export table for a Win32 module.
166 */
167 static void output_exports( DLLSPEC *spec )
168 {
169 int i, fwd_size = 0;
170 int nr_exports = spec->base <= spec->limit ? spec->limit - spec->base + 1 : 0;
171
172 if (!nr_exports) return;
173
174 output( "\n/* export table */\n\n" );
175 output( "\t.data\n" );
176 output( "\t.align %d\n", get_alignment(4) );
177 output( ".L__wine_spec_exports:\n" );
178
179 /* export directory header */
180
181 output( "\t.long 0\n" ); /* Characteristics */
182 output( "\t.long 0\n" ); /* TimeDateStamp */
183 output( "\t.long 0\n" ); /* MajorVersion/MinorVersion */
184 output( "\t.long .L__wine_spec_exp_names-.L__wine_spec_rva_base\n" ); /* Name */
185 output( "\t.long %u\n", spec->base ); /* Base */
186 output( "\t.long %u\n", nr_exports ); /* NumberOfFunctions */
187 output( "\t.long %u\n", spec->nb_names ); /* NumberOfNames */
188 output( "\t.long .L__wine_spec_exports_funcs-.L__wine_spec_rva_base\n" ); /* AddressOfFunctions */
189 if (spec->nb_names)
190 {
191 output( "\t.long .L__wine_spec_exp_name_ptrs-.L__wine_spec_rva_base\n" ); /* AddressOfNames */
192 output( "\t.long .L__wine_spec_exp_ordinals-.L__wine_spec_rva_base\n" ); /* AddressOfNameOrdinals */
193 }
194 else
195 {
196 output( "\t.long 0\n" ); /* AddressOfNames */
197 output( "\t.long 0\n" ); /* AddressOfNameOrdinals */
198 }
199
200 /* output the function pointers */
201
202 output( "\n.L__wine_spec_exports_funcs:\n" );
203 for (i = spec->base; i <= spec->limit; i++)
204 {
205 ORDDEF *odp = spec->ordinals[i];
206 if (!odp) output( "\t%s 0\n", get_asm_ptr_keyword() );
207 else switch(odp->type)
208 {
209 case TYPE_EXTERN:
210 case TYPE_STDCALL:
211 case TYPE_VARARGS:
212 case TYPE_CDECL:
213 if (odp->flags & FLAG_FORWARD)
214 {
215 output( "\t%s .L__wine_spec_forwards+%u\n", get_asm_ptr_keyword(), fwd_size );
216 fwd_size += strlen(odp->link_name) + 1;
217 }
218 else if (odp->flags & FLAG_EXT_LINK)
219 {
220 output( "\t%s %s_%s\n",
221 get_asm_ptr_keyword(), asm_name("__wine_spec_ext_link"), odp->link_name );
222 }
223 else
224 {
225 output( "\t%s %s\n", get_asm_ptr_keyword(), asm_name(odp->link_name) );
226 }
227 break;
228 case TYPE_STUB:
229 output( "\t%s %s\n", get_asm_ptr_keyword(),
230 asm_name( get_stub_name( odp, spec )) );
231 break;
232 default:
233 assert(0);
234 }
235 }
236
237 if (spec->nb_names)
238 {
239 /* output the function name pointers */
240
241 int namepos = strlen(spec->file_name) + 1;
242
243 output( "\n.L__wine_spec_exp_name_ptrs:\n" );
244 for (i = 0; i < spec->nb_names; i++)
245 {
246 output( "\t.long .L__wine_spec_exp_names+%u-.L__wine_spec_rva_base\n", namepos );
247 namepos += strlen(spec->names[i]->name) + 1;
248 }
249
250 /* output the function ordinals */
251
252 output( "\n.L__wine_spec_exp_ordinals:\n" );
253 for (i = 0; i < spec->nb_names; i++)
254 {
255 output( "\t%s %d\n",
256 get_asm_short_keyword(), spec->names[i]->ordinal - spec->base );
257 }
258 if (spec->nb_names % 2)
259 {
260 output( "\t%s 0\n", get_asm_short_keyword() );
261 }
262 }
263
264 /* output the export name strings */
265
266 output( "\n.L__wine_spec_exp_names:\n" );
267 output( "\t%s \"%s\"\n", get_asm_string_keyword(), spec->file_name );
268 for (i = 0; i < spec->nb_names; i++)
269 output( "\t%s \"%s\"\n",
270 get_asm_string_keyword(), spec->names[i]->name );
271
272 /* output forward strings */
273
274 if (fwd_size)
275 {
276 output( "\n.L__wine_spec_forwards:\n" );
277 for (i = spec->base; i <= spec->limit; i++)
278 {
279 ORDDEF *odp = spec->ordinals[i];
280 if (odp && (odp->flags & FLAG_FORWARD))
281 output( "\t%s \"%s\"\n", get_asm_string_keyword(), odp->link_name );
282 }
283 }
284 output( "\t.align %d\n", get_alignment(get_ptr_size()) );
285 output( ".L__wine_spec_exports_end:\n" );
286
287 /* output relays */
288
289 /* we only support relay debugging on i386 */
290 if (target_cpu != CPU_x86)
291 {
292 output( "\t%s 0\n", get_asm_ptr_keyword() );
293 return;
294 }
295
296 output( ".L__wine_spec_relay_descr:\n" );
297 output( "\t%s 0xdeb90001\n", get_asm_ptr_keyword() ); /* magic */
298 output( "\t%s 0,0\n", get_asm_ptr_keyword() ); /* relay funcs */
299 output( "\t%s 0\n", get_asm_ptr_keyword() ); /* private data */
300 output( "\t%s __wine_spec_relay_entry_points\n", get_asm_ptr_keyword() );
301 output( "\t%s .L__wine_spec_relay_entry_point_offsets\n", get_asm_ptr_keyword() );
302 output( "\t%s .L__wine_spec_relay_arg_types\n", get_asm_ptr_keyword() );
303
304 output_relay_debug( spec );
305 }
306
307
308 /*******************************************************************
309 * output_asm_constructor
310 *
311 * Output code for calling a dll constructor.
312 */
313 static void output_asm_constructor( const char *constructor )
314 {
315 if (target_platform == PLATFORM_APPLE)
316 {
317 /* Mach-O doesn't have an init section */
318 output( "\n\t.mod_init_func\n" );
319 output( "\t.align %d\n", get_alignment(4) );
320 output( "\t.long %s\n", asm_name(constructor) );
321 }
322 else
323 {
324 output( "\n\t.section \".init\",\"ax\"\n" );
325 switch(target_cpu)
326 {
327 case CPU_x86:
328 case CPU_x86_64:
329 output( "\tcall %s\n", asm_name(constructor) );
330 break;
331 case CPU_SPARC:
332 output( "\tcall %s\n", asm_name(constructor) );
333 output( "\tnop\n" );
334 break;
335 case CPU_ALPHA:
336 output( "\tjsr $26,%s\n", asm_name(constructor) );
337 break;
338 case CPU_POWERPC:
339 output( "\tbl %s\n", asm_name(constructor) );
340 break;
341 }
342 }
343 }
344
345
346 /*******************************************************************
347 * BuildSpec32File
348 *
349 * Build a Win32 C file from a spec file.
350 */
351 void BuildSpec32File( DLLSPEC *spec )
352 {
353 int machine = 0;
354 unsigned int page_size = get_page_size();
355
356 resolve_imports( spec );
357 output_standard_file_header();
358
359 /* Reserve some space for the PE header */
360
361 switch (target_platform)
362 {
363 case PLATFORM_APPLE:
364 output( "\t.text\n" );
365 output( "\t.align %d\n", get_alignment(page_size) );
366 output( "__wine_spec_pe_header:\n" );
367 output( "\t.space 65536\n" );
368 break;
369 case PLATFORM_SOLARIS:
370 output( "\n\t.section \".text\",\"ax\"\n" );
371 output( "__wine_spec_pe_header:\n" );
372 output( "\t.skip %u\n", 65536 + page_size );
373 break;
374 default:
375 output( "\n\t.section \".init\",\"ax\"\n" );
376 switch(target_cpu)
377 {
378 case CPU_x86:
379 case CPU_x86_64:
380 case CPU_ALPHA:
381 case CPU_SPARC:
382 output( "\tjmp 1f\n" );
383 break;
384 case CPU_POWERPC:
385 output( "\tb 1f\n" );
386 break;
387 }
388 output( "__wine_spec_pe_header:\n" );
389 output( "\t.skip %u\n", 65536 + page_size );
390 output( "1:\n" );
391 break;
392 }
393
394 /* Output the NT header */
395
396 output( "\n\t.data\n" );
397 output( "\t.align %d\n", get_alignment(get_ptr_size()) );
398 output( "%s\n", asm_globl("__wine_spec_nt_header") );
399 output( ".L__wine_spec_rva_base:\n" );
400
401 output( "\t.long 0x%04x\n", IMAGE_NT_SIGNATURE ); /* Signature */
402 switch(target_cpu)
403 {
404 case CPU_x86: machine = IMAGE_FILE_MACHINE_I386; break;
405 case CPU_x86_64: machine = IMAGE_FILE_MACHINE_AMD64; break;
406 case CPU_POWERPC: machine = IMAGE_FILE_MACHINE_POWERPC; break;
407 case CPU_ALPHA: machine = IMAGE_FILE_MACHINE_ALPHA; break;
408 case CPU_SPARC: machine = IMAGE_FILE_MACHINE_UNKNOWN; break;
409 }
410 output( "\t%s 0x%04x\n", /* Machine */
411 get_asm_short_keyword(), machine );
412 output( "\t%s 0\n", /* NumberOfSections */
413 get_asm_short_keyword() );
414 output( "\t.long 0\n" ); /* TimeDateStamp */
415 output( "\t.long 0\n" ); /* PointerToSymbolTable */
416 output( "\t.long 0\n" ); /* NumberOfSymbols */
417 output( "\t%s %d\n", /* SizeOfOptionalHeader */
418 get_asm_short_keyword(),
419 get_ptr_size() == 8 ? IMAGE_SIZEOF_NT_OPTIONAL64_HEADER : IMAGE_SIZEOF_NT_OPTIONAL32_HEADER );
420 output( "\t%s 0x%04x\n", /* Characteristics */
421 get_asm_short_keyword(), spec->characteristics );
422 output( "\t%s 0x%04x\n", /* Magic */
423 get_asm_short_keyword(),
424 get_ptr_size() == 8 ? IMAGE_NT_OPTIONAL_HDR64_MAGIC : IMAGE_NT_OPTIONAL_HDR32_MAGIC );
425 output( "\t.byte 0\n" ); /* MajorLinkerVersion */
426 output( "\t.byte 0\n" ); /* MinorLinkerVersion */
427 output( "\t.long 0\n" ); /* SizeOfCode */
428 output( "\t.long 0\n" ); /* SizeOfInitializedData */
429 output( "\t.long 0\n" ); /* SizeOfUninitializedData */
430 /* note: we expand the AddressOfEntryPoint field on 64-bit by overwriting the BaseOfCode field */
431 output( "\t%s %s\n", /* AddressOfEntryPoint */
432 get_asm_ptr_keyword(), asm_name(spec->init_func) );
433 if (get_ptr_size() == 4)
434 {
435 output( "\t.long 0\n" ); /* BaseOfCode */
436 output( "\t.long 0\n" ); /* BaseOfData */
437 }
438 output( "\t%s __wine_spec_pe_header\n", /* ImageBase */
439 get_asm_ptr_keyword() );
440 output( "\t.long %u\n", page_size ); /* SectionAlignment */
441 output( "\t.long %u\n", page_size ); /* FileAlignment */
442 output( "\t%s 1,0\n", /* Major/MinorOperatingSystemVersion */
443 get_asm_short_keyword() );
444 output( "\t%s 0,0\n", /* Major/MinorImageVersion */
445 get_asm_short_keyword() );
446 output( "\t%s %u,%u\n", /* Major/MinorSubsystemVersion */
447 get_asm_short_keyword(), spec->subsystem_major, spec->subsystem_minor );
448 output( "\t.long 0\n" ); /* Win32VersionValue */
449 output( "\t.long %s-.L__wine_spec_rva_base\n", /* SizeOfImage */
450 asm_name("_end") );
451 output( "\t.long %u\n", page_size ); /* SizeOfHeaders */
452 output( "\t.long 0\n" ); /* CheckSum */
453 output( "\t%s 0x%04x\n", /* Subsystem */
454 get_asm_short_keyword(), spec->subsystem );
455 output( "\t%s 0x%04x\n", /* DllCharacteristics */
456 get_asm_short_keyword(), spec->dll_characteristics );
457 output( "\t%s %u,%u\n", /* SizeOfStackReserve/Commit */
458 get_asm_ptr_keyword(), (spec->stack_size ? spec->stack_size : 1024) * 1024, page_size );
459 output( "\t%s %u,%u\n", /* SizeOfHeapReserve/Commit */
460 get_asm_ptr_keyword(), (spec->heap_size ? spec->heap_size : 1024) * 1024, page_size );
461 output( "\t.long 0\n" ); /* LoaderFlags */
462 output( "\t.long 16\n" ); /* NumberOfRvaAndSizes */
463
464 if (spec->base <= spec->limit) /* DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT] */
465 output( "\t.long .L__wine_spec_exports-.L__wine_spec_rva_base,"
466 ".L__wine_spec_exports_end-.L__wine_spec_exports\n" );
467 else
468 output( "\t.long 0,0\n" );
469
470 if (has_imports()) /* DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT] */
471 output( "\t.long .L__wine_spec_imports-.L__wine_spec_rva_base,"
472 ".L__wine_spec_imports_end-.L__wine_spec_imports\n" );
473 else
474 output( "\t.long 0,0\n" );
475
476 if (spec->nb_resources) /* DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE] */
477 output( "\t.long .L__wine_spec_resources-.L__wine_spec_rva_base,"
478 ".L__wine_spec_resources_end-.L__wine_spec_resources\n" );
479 else
480 output( "\t.long 0,0\n" );
481
482 output( "\t.long 0,0\n" ); /* DataDirectory[3] */
483 output( "\t.long 0,0\n" ); /* DataDirectory[4] */
484 output( "\t.long 0,0\n" ); /* DataDirectory[5] */
485 output( "\t.long 0,0\n" ); /* DataDirectory[6] */
486 output( "\t.long 0,0\n" ); /* DataDirectory[7] */
487 output( "\t.long 0,0\n" ); /* DataDirectory[8] */
488 output( "\t.long 0,0\n" ); /* DataDirectory[9] */
489 output( "\t.long 0,0\n" ); /* DataDirectory[10] */
490 output( "\t.long 0,0\n" ); /* DataDirectory[11] */
491 output( "\t.long 0,0\n" ); /* DataDirectory[12] */
492 output( "\t.long 0,0\n" ); /* DataDirectory[13] */
493 output( "\t.long 0,0\n" ); /* DataDirectory[14] */
494 output( "\t.long 0,0\n" ); /* DataDirectory[15] */
495
496 output( "\n\t%s\n", get_asm_string_section() );
497 output( "%s\n", asm_globl("__wine_spec_file_name") );
498 output( ".L__wine_spec_file_name:\n" );
499 output( "\t%s \"%s\"\n", get_asm_string_keyword(), spec->file_name );
500 if (target_platform == PLATFORM_APPLE)
501 output( "\t.lcomm %s,4\n", asm_name("_end") );
502
503 output_stubs( spec );
504 output_exports( spec );
505 output_imports( spec );
506 output_resources( spec );
507 output_asm_constructor( "__wine_spec_init_ctor" );
508 output_gnu_stack_note();
509 }
510
511
512 /*******************************************************************
513 * BuildDef32File
514 *
515 * Build a Win32 def file from a spec file.
516 */
517 void BuildDef32File( DLLSPEC *spec )
518 {
519 const char *name;
520 int i, total;
521
522 if (spec_file_name)
523 output( "; File generated automatically from %s; do not edit!\n\n",
524 spec_file_name );
525 else
526 output( "; File generated automatically; do not edit!\n\n" );
527
528 output( "LIBRARY %s\n\n", spec->file_name);
529 output( "EXPORTS\n");
530
531 /* Output the exports and relay entry points */
532
533 for (i = total = 0; i < spec->nb_entry_points; i++)
534 {
535 const ORDDEF *odp = &spec->entry_points[i];
536 int is_data = 0;
537
538 if (!odp) continue;
539
540 if (odp->name) name = odp->name;
541 else if (odp->export_name) name = odp->export_name;
542 else continue;
543
544 if (!(odp->flags & FLAG_PRIVATE)) total++;
545
546 if (odp->type == TYPE_STUB) continue;
547
548 output( " %s", name );
549
550 switch(odp->type)
551 {
552 case TYPE_EXTERN:
553 is_data = 1;
554 /* fall through */
555 case TYPE_VARARGS:
556 case TYPE_CDECL:
557 /* try to reduce output */
558 if(strcmp(name, odp->link_name) || (odp->flags & FLAG_FORWARD))
559 output( "=%s", odp->link_name );
560 break;
561 case TYPE_STDCALL:
562 {
563 int at_param = strlen(odp->u.func.arg_types) * get_ptr_size();
564 if (!kill_at) output( "@%d", at_param );
565 if (odp->flags & FLAG_FORWARD)
566 {
567 output( "=%s", odp->link_name );
568 }
569 else if (strcmp(name, odp->link_name)) /* try to reduce output */
570 {
571 output( "=%s", odp->link_name );
572 if (!kill_at) output( "@%d", at_param );
573 }
574 break;
575 }
576 default:
577 assert(0);
578 }
579 output( " @%d", odp->ordinal );
580 if (!odp->name || (odp->flags & FLAG_ORDINAL)) output( " NONAME" );
581 if (is_data) output( " DATA" );
582 if (odp->flags & FLAG_PRIVATE) output( " PRIVATE" );
583 output( "\n" );
584 }
585 if (!total) warning( "%s: Import library doesn't export anything\n", spec->file_name );
586 }
587
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