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2005-01-24 Ben Maurer <bmaurer@ximian.com>
[mono-project.git] / mono / metadata / marshal.c
blobfbf3f68c148d4b32ff0ba149e7ad54dec1555096
1 /*
2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
3 *
4 * Author:
5 * Paolo Molaro (lupus@ximian.com)
6 *
7 * (C) 2002 Ximian, Inc. http://www.ximian.com
8 *
9 */
10
11 #include "config.h"
12 #include "object.h"
13 #include "loader.h"
14 #include "metadata/marshal.h"
15 #include "metadata/tabledefs.h"
16 #include "metadata/exception.h"
17 #include "metadata/appdomain.h"
18 #include "mono/metadata/debug-helpers.h"
19 #include "mono/metadata/threadpool.h"
20 #include "mono/metadata/threads.h"
21 #include "mono/metadata/monitor.h"
22 #include "mono/metadata/metadata-internals.h"
23 #include "mono/metadata/domain-internals.h"
24 #include "mono/metadata/gc-internal.h"
25 #include "mono/metadata/threads-types.h"
26 #include <mono/os/gc_wrapper.h>
27 #include <string.h>
28 #include <errno.h>
29
30 /* #define DEBUG_RUNTIME_CODE */
31
32 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
33 a = i,
34
35 typedef enum {
36 MONO_MARSHAL_NONE, /* No marshalling needed */
37 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
38 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
39 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
40 } MonoXDomainMarshalType;
41
42 enum {
43 #include "mono/cil/opcode.def"
44 LAST = 0xff
45 };
46 #undef OPDEF
47
48 struct _MonoMethodBuilder {
49 MonoMethod *method;
50 GList *locals_list;
51 int locals;
52 guint32 code_size, pos;
53 unsigned char *code;
54 };
55
56 struct _MonoRemotingMethods {
57 MonoMethod *invoke;
58 MonoMethod *invoke_with_check;
59 MonoMethod *xdomain_invoke;
60 MonoMethod *xdomain_dispatch;
61 };
62
63 typedef struct _MonoRemotingMethods MonoRemotingMethods;
64
65 static void
66 delegate_hash_table_add (MonoDelegate *d);
67
68 static void
69 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
70
71 #ifdef DEBUG_RUNTIME_CODE
72 static char*
73 indenter (MonoDisHelper *dh, MonoMethod *method, guint32 ip_offset)
74 {
75 return g_strdup (" ");
76 }
77
78 static MonoDisHelper marshal_dh = {
79 "\n",
80 "IL_%04x: ",
81 "IL_%04x",
82 indenter,
83 NULL,
84 NULL
85 };
86 #endif
87
88 /* This mutex protects the various marshalling related caches in MonoImage */
89 static CRITICAL_SECTION marshal_mutex;
90
91 /* Maps wrapper methods to the methods they wrap */
92 static GHashTable *wrapper_hash;
93
94 static guint32 last_error_tls_id;
95
96 static void mono_struct_delete_old (MonoClass *klass, char *ptr);
97 void * mono_marshal_string_to_utf16 (MonoString *s);
98
99 static gpointer mono_string_to_lpstr (MonoString *string_obj);
100
101 static void
102 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
103 {
104 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
105
106 mono_register_jit_icall (func, name, sig, save);
107 }
108
109 static MonoMethodSignature*
110 signature_no_pinvoke (MonoMethodSignature* sig)
111 {
112 if (sig->pinvoke) {
113 sig = mono_metadata_signature_dup (sig);
114 sig->pinvoke = FALSE;
115 }
116
117 return sig;
118 }
119
120 void
121 mono_marshal_init (void)
122 {
123 static gboolean module_initialized = FALSE;
124
125 if (!module_initialized) {
126 module_initialized = TRUE;
127 InitializeCriticalSection (&marshal_mutex);
128 wrapper_hash = g_hash_table_new (NULL, NULL);
129 last_error_tls_id = TlsAlloc ();
130
131 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
132 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
133 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
134 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
135 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
136 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
137 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
138 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
139 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
140 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
141 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
142 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
143 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
144 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
145 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32", FALSE);
146 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32", FALSE);
147 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
148 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
149 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
150 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
151 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
152 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
153 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
154 register_icall (g_free, "g_free", "void ptr", FALSE);
155 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
156 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
157 }
158 }
159
160
161 MonoClass *byte_array_class;
162 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
163 static MonoMethod *method_set_context, *method_get_context, *method_reset_datastore, *method_restore_datastore;
164 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
165
166 static void
167 mono_remoting_marshal_init (void)
168 {
169 MonoClass *klass;
170
171 static gboolean module_initialized = FALSE;
172
173 if (!module_initialized) {
174 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
175 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
176 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
177 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
178
179 klass = mono_defaults.real_proxy_class;
180 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
181
182 klass = mono_defaults.exception_class;
183 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
184
185 klass = mono_defaults.thread_class;
186 method_reset_datastore = mono_class_get_method_from_name (klass, "ResetDataStoreStatus", -1);
187 method_restore_datastore = mono_class_get_method_from_name (klass, "RestoreDataStoreStatus", -1);
188 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
189
190 klass = mono_defaults.appdomain_class;
191 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
192 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
193
194 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
195 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
196
197 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
198 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
199 }
200 }
201
202 gpointer
203 mono_delegate_to_ftnptr (MonoDelegate *delegate)
204 {
205 MonoMethod *method, *wrapper, *invoke;
206 MonoMarshalSpec **mspecs;
207 MonoClass *klass;
208 int i;
209
210 if (!delegate)
211 return NULL;
212
213 if (delegate->delegate_trampoline)
214 return delegate->delegate_trampoline;
215
216 klass = ((MonoObject *)delegate)->vtable->klass;
217 g_assert (klass->delegate);
218
219 method = delegate->method_info->method;
220 invoke = mono_class_get_method_from_name (klass, "Invoke", method->signature->param_count);
221
222 mspecs = g_new (MonoMarshalSpec*, invoke->signature->param_count + 1);
223 mono_method_get_marshal_info (invoke, mspecs);
224
225 wrapper = mono_marshal_get_managed_wrapper (method, delegate->target, mspecs);
226
227 for (i = invoke->signature->param_count; i >= 0; i--)
228 if (mspecs [i])
229 mono_metadata_free_marshal_spec (mspecs [i]);
230 g_free (mspecs);
231
232 delegate->delegate_trampoline = mono_compile_method (wrapper);
233
234 // Add the delegate to the delegate hash table
235 delegate_hash_table_add (delegate);
236
237 return delegate->delegate_trampoline;
238 }
239
240 static GHashTable *delegate_hash_table;
241
242 static GHashTable *
243 delegate_hash_table_new (void) {
244 return g_hash_table_new (NULL, NULL);
245 }
246
247 static void
248 delegate_hash_table_remove (MonoDelegate *d)
249 {
250 EnterCriticalSection (&marshal_mutex);
251 if (delegate_hash_table == NULL)
252 delegate_hash_table = delegate_hash_table_new ();
253 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
254 LeaveCriticalSection (&marshal_mutex);
255 }
256
257 void
258 delegate_hash_table_add (MonoDelegate *d)
259 {
260 EnterCriticalSection (&marshal_mutex);
261 if (delegate_hash_table == NULL)
262 delegate_hash_table = delegate_hash_table_new ();
263 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
264 LeaveCriticalSection (&marshal_mutex);
265 }
266
267 MonoDelegate*
268 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
269 {
270 MonoDelegate *d;
271
272 EnterCriticalSection (&marshal_mutex);
273 if (delegate_hash_table == NULL)
274 delegate_hash_table = delegate_hash_table_new ();
275
276 d = g_hash_table_lookup (delegate_hash_table, ftn);
277 LeaveCriticalSection (&marshal_mutex);
278 if (d == NULL)
279 mono_raise_exception (mono_get_exception_argument (NULL, "Additional information: Function pointer was not created by a delegate."));
280 return d;
281 }
282
283 void
284 mono_delegate_free_ftnptr (MonoDelegate *delegate)
285 {
286 MonoJitInfo *ji;
287 void *ptr, *ptr2;
288
289 delegate_hash_table_remove (delegate);
290 ptr2 = delegate->delegate_trampoline;
291
292 ptr = InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
293 ji = mono_jit_info_table_find (mono_domain_get (), ptr);
294 g_assert (ji);
295
296 if (!delegate->target) {
297 /* The wrapper method is shared between delegates -> no need to free it */
298 return;
299 }
300
301 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
302 }
303
304 gpointer
305 mono_array_to_savearray (MonoArray *array)
306 {
307 if (!array)
308 return NULL;
309
310 g_assert_not_reached ();
311 return NULL;
312 }
313
314 gpointer
315 mono_array_to_lparray (MonoArray *array)
316 {
317 if (!array)
318 return NULL;
319
320 /* fixme: maybe we need to make a copy */
321 return array->vector;
322 }
323
324 void
325 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
326 {
327 GError *error = NULL;
328 guint16 *ut;
329 glong items_written;
330 int l;
331
332 if (!sb || !text)
333 return;
334
335 l = strlen (text);
336
337 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
338
339 if (items_written > mono_stringbuilder_capacity (sb))
340 items_written = mono_stringbuilder_capacity (sb);
341
342 if (!error) {
343 if (! sb->str || sb->str == sb->cached_str) {
344 sb->str = mono_string_new_size (mono_domain_get (), items_written);
345 sb->cached_str = NULL;
346 }
347
348 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
349 sb->length = items_written;
350 } else
351 g_error_free (error);
352
353 g_free (ut);
354 }
355
356 void
357 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
358 {
359 guint32 len;
360
361 if (!sb || !text)
362 return;
363
364 g_assert (mono_string_chars (sb->str) == text);
365
366 for (len = 0; text [len] != 0; ++len)
367 ;
368
369 sb->length = len;
370 }
371
372 gpointer
373 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
374 {
375 GError *error = NULL;
376 glong *res;
377 gchar *tmp;
378
379 if (!sb)
380 return NULL;
381
382 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
383
384 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, res, &error);
385 if (error) {
386 g_error_free (error);
387 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
388 }
389 else {
390 memcpy (res, tmp, sb->length + 1);
391 g_free (tmp);
392 }
393
394 return res;
395 }
396
397 gpointer
398 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
399 {
400 if (!sb)
401 return NULL;
402
403 /*
404 * The sb could have been allocated with the default capacity and be empty.
405 * we need to alloc a buffer of the default capacity in this case.
406 */
407 if (! sb->str)
408 sb->str = mono_string_new_size (mono_domain_get (), mono_stringbuilder_capacity (sb));
409 /*
410 * The stringbuilder might not have ownership of this string. If this is
411 * the case, we must duplicate the string, so that we don't munge immutable
412 * strings
413 */
414 else if (sb->str == sb->cached_str) {
415 sb->str = mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb));
416 sb->cached_str = NULL;
417 }
418
419 return mono_string_chars (sb->str);
420 }
421
422 static gpointer
423 mono_string_to_lpstr (MonoString *s)
424 {
425 #ifdef PLATFORM_WIN32
426 char *as, *tmp;
427 glong len;
428 GError *error = NULL;
429
430 if (s == NULL)
431 return NULL;
432
433 if (!s->length) {
434 as = CoTaskMemAlloc (1);
435 as [0] = '\0';
436 return as;
437 }
438
439 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
440 if (error) {
441 g_warning (error->message);
442 g_error_free (error);
443 return NULL;
444 }
445 else {
446 as = CoTaskMemAlloc (len + 1);
447 memcpy (as, tmp, len + 1);
448 return as;
449 }
450 #else
451 return mono_string_to_utf8 (s);
452 #endif
453 }
454
455 gpointer
456 mono_string_to_ansibstr (MonoString *string_obj)
457 {
458 g_error ("UnmanagedMarshal.BStr is not implemented.");
459 return NULL;
460 }
461
462 gpointer
463 mono_string_to_bstr (MonoString *string_obj)
464 {
465 g_error ("UnmanagedMarshal.AnsiBStr is not implemented.");
466 return NULL;
467 }
468
469 void
470 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
471 {
472 char *s;
473 int len;
474
475 g_assert (dst != NULL);
476 g_assert (size > 0);
477
478 memset (dst, 0, size);
479
480 if (!src)
481 return;
482
483 s = mono_string_to_utf8 (src);
484 len = MIN (size, strlen (s));
485 memcpy (dst, s, len);
486 g_free (s);
487
488 *((char *)dst + size - 1) = 0;
489 }
490
491 void
492 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
493 {
494 int len;
495
496 g_assert (dst != NULL);
497 g_assert (size > 1);
498
499 if (!src) {
500 memset (dst, 0, size);
501 return;
502 }
503
504 len = MIN (size, (mono_string_length (src) * 2));
505 memcpy (dst, mono_string_chars (src), len);
506
507 *((char *)dst + size - 1) = 0;
508 *((char *)dst + size - 2) = 0;
509 }
510
511 void
512 mono_mb_free (MonoMethodBuilder *mb)
513 {
514 g_list_free (mb->locals_list);
515 g_free (mb);
516 }
517
518 MonoMethodBuilder *
519 mono_mb_new (MonoClass *klass, const char *name, MonoWrapperType type)
520 {
521 MonoMethodBuilder *mb;
522 MonoMethod *m;
523
524 g_assert (klass != NULL);
525 g_assert (name != NULL);
526
527 mb = g_new0 (MonoMethodBuilder, 1);
528
529 mb->method = m = (MonoMethod *)g_new0 (MonoMethodWrapper, 1);
530
531 m->klass = klass;
532 m->name = g_strdup (name);
533 m->inline_info = 1;
534 m->wrapper_type = type;
535
536 mb->code_size = 40;
537 mb->code = g_malloc (mb->code_size);
538
539 return mb;
540 }
541
542 int
543 mono_mb_add_local (MonoMethodBuilder *mb, MonoType *type)
544 {
545 int res = mb->locals;
546
547 g_assert (mb != NULL);
548 g_assert (type != NULL);
549
550 mb->locals_list = g_list_append (mb->locals_list, type);
551 mb->locals++;
552
553 return res;
554 }
555
556 MonoMethod *
557 mono_mb_create_method (MonoMethodBuilder *mb, MonoMethodSignature *signature, int max_stack)
558 {
559 MonoMethodHeader *header;
560 MonoMethodWrapper *mw;
561 GList *l;
562 int i;
563
564 g_assert (mb != NULL);
565
566 ((MonoMethodNormal *)mb->method)->header = header = (MonoMethodHeader *)
567 g_malloc0 (sizeof (MonoMethodHeader) + mb->locals * sizeof (MonoType *));
568
569 if (max_stack < 8)
570 max_stack = 8;
571
572 header->max_stack = max_stack;
573
574 for (i = 0, l = mb->locals_list; l; l = l->next, i++) {
575 header->locals [i] = (MonoType *)l->data;
576 }
577
578 mb->method->signature = signature;
579 header->code = mb->code;
580 header->code_size = mb->pos;
581 header->num_locals = mb->locals;
582
583 mw = (MonoMethodWrapper*) mb->method;
584 i = g_list_length (mw->method_data);
585 if (i) {
586 GList *tmp;
587 void **data;
588 l = g_list_reverse (mw->method_data);
589 data = mw->method_data = g_new (gpointer, i + 1);
590 /* store the size in the first element */
591 data [0] = GUINT_TO_POINTER (i);
592 i = 1;
593 for (tmp = l; tmp; tmp = tmp->next) {
594 data [i++] = tmp->data;
595 }
596 g_list_free (l);
597 }
598 /*{
599 static int total_code = 0;
600 static int total_alloc = 0;
601 total_code += mb->pos;
602 total_alloc += mb->code_size;
603 g_print ("code size: %d of %d (allocated: %d)\n", mb->pos, total_code, total_alloc);
604 }*/
605
606 #ifdef DEBUG_RUNTIME_CODE
607 printf ("RUNTIME CODE FOR %s\n", mono_method_full_name (mb->method, TRUE));
608 printf ("%s\n", mono_disasm_code (&marshal_dh, mb->method, mb->code, mb->code + mb->pos));
609 #endif
610
611 return mb->method;
612 }
613
614 guint32
615 mono_mb_add_data (MonoMethodBuilder *mb, gpointer data)
616 {
617 MonoMethodWrapper *mw;
618
619 g_assert (mb != NULL);
620
621 mw = (MonoMethodWrapper *)mb->method;
622
623 /* one O(n) is enough */
624 mw->method_data = g_list_prepend (mw->method_data, data);
625
626 return g_list_length (mw->method_data);
627 }
628
629 void
630 mono_mb_patch_addr (MonoMethodBuilder *mb, int pos, int value)
631 {
632 mb->code [pos] = value & 0xff;
633 mb->code [pos + 1] = (value >> 8) & 0xff;
634 mb->code [pos + 2] = (value >> 16) & 0xff;
635 mb->code [pos + 3] = (value >> 24) & 0xff;
636 }
637
638 void
639 mono_mb_patch_addr_s (MonoMethodBuilder *mb, int pos, gint8 value)
640 {
641 *((gint8 *)(&mb->code [pos])) = value;
642 }
643
644 void
645 mono_mb_emit_byte (MonoMethodBuilder *mb, guint8 op)
646 {
647 if (mb->pos >= mb->code_size) {
648 mb->code_size += mb->code_size >> 1;
649 mb->code = g_realloc (mb->code, mb->code_size);
650 }
651
652 mb->code [mb->pos++] = op;
653 }
654
655 void
656 mono_mb_emit_ldflda (MonoMethodBuilder *mb, gint32 offset)
657 {
658 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
659 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
660
661 if (offset) {
662 mono_mb_emit_icon (mb, offset);
663 mono_mb_emit_byte (mb, CEE_ADD);
664 }
665 }
666
667 static int
668 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
669 {
670 int pos;
671 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
672 mono_mb_emit_byte (mb, CEE_LDIND_I);
673 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
674 mono_mb_emit_byte (mb, CEE_ADD);
675 mono_mb_emit_byte (mb, CEE_LDIND_I);
676 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
677 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
678 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
679 mono_mb_emit_byte (mb, branch_code);
680 pos = mb->pos;
681 mono_mb_emit_i4 (mb, 0);
682 return pos;
683 }
684
685 static int
686 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
687 {
688 int pos;
689 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
690 mono_mb_emit_byte (mb, CEE_LDIND_REF);
691 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
692 mono_mb_emit_byte (mb, CEE_LDIND_I4);
693 mono_mb_emit_icon (mb, -1);
694 mono_mb_emit_byte (mb, branch_code);
695 pos = mb->pos;
696 mono_mb_emit_i4 (mb, 0);
697 return pos;
698 }
699
700 void
701 mono_mb_emit_i4 (MonoMethodBuilder *mb, gint32 data)
702 {
703 if ((mb->pos + 4) >= mb->code_size) {
704 mb->code_size += mb->code_size >> 1;
705 mb->code = g_realloc (mb->code, mb->code_size);
706 }
707
708 mono_mb_patch_addr (mb, mb->pos, data);
709 mb->pos += 4;
710 }
711
712 void
713 mono_mb_emit_i2 (MonoMethodBuilder *mb, gint16 data)
714 {
715 if ((mb->pos + 2) >= mb->code_size) {
716 mb->code_size += mb->code_size >> 1;
717 mb->code = g_realloc (mb->code, mb->code_size);
718 }
719
720 mb->code [mb->pos] = data & 0xff;
721 mb->code [mb->pos + 1] = (data >> 8) & 0xff;
722 mb->pos += 2;
723 }
724
725 void
726 mono_mb_emit_ldstr (MonoMethodBuilder *mb, char *str)
727 {
728 mono_mb_emit_byte (mb, CEE_LDSTR);
729 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, str));
730 }
731
732
733 void
734 mono_mb_emit_ldarg (MonoMethodBuilder *mb, guint argnum)
735 {
736 if (argnum < 4) {
737 mono_mb_emit_byte (mb, CEE_LDARG_0 + argnum);
738 } else if (argnum < 256) {
739 mono_mb_emit_byte (mb, CEE_LDARG_S);
740 mono_mb_emit_byte (mb, argnum);
741 } else {
742 mono_mb_emit_byte (mb, CEE_PREFIX1);
743 mono_mb_emit_byte (mb, CEE_LDARG);
744 mono_mb_emit_i2 (mb, argnum);
745 }
746 }
747
748 void
749 mono_mb_emit_ldarg_addr (MonoMethodBuilder *mb, guint argnum)
750 {
751 if (argnum < 256) {
752 mono_mb_emit_byte (mb, CEE_LDARGA_S);
753 mono_mb_emit_byte (mb, argnum);
754 } else {
755 mono_mb_emit_byte (mb, CEE_PREFIX1);
756 mono_mb_emit_byte (mb, CEE_LDARGA);
757 mono_mb_emit_i2 (mb, argnum);
758 }
759 }
760
761 void
762 mono_mb_emit_ldloc_addr (MonoMethodBuilder *mb, guint locnum)
763 {
764 if (locnum < 256) {
765 mono_mb_emit_byte (mb, CEE_LDLOCA_S);
766 mono_mb_emit_byte (mb, locnum);
767 } else {
768 mono_mb_emit_byte (mb, CEE_PREFIX1);
769 mono_mb_emit_byte (mb, CEE_LDLOCA);
770 mono_mb_emit_i2 (mb, locnum);
771 }
772 }
773
774 void
775 mono_mb_emit_ldloc (MonoMethodBuilder *mb, guint num)
776 {
777 if (num < 4) {
778 mono_mb_emit_byte (mb, CEE_LDLOC_0 + num);
779 } else if (num < 256) {
780 mono_mb_emit_byte (mb, CEE_LDLOC_S);
781 mono_mb_emit_byte (mb, num);
782 } else {
783 mono_mb_emit_byte (mb, CEE_PREFIX1);
784 mono_mb_emit_byte (mb, CEE_LDLOC);
785 mono_mb_emit_i2 (mb, num);
786 }
787 }
788
789 void
790 mono_mb_emit_stloc (MonoMethodBuilder *mb, guint num)
791 {
792 if (num < 4) {
793 mono_mb_emit_byte (mb, CEE_STLOC_0 + num);
794 } else if (num < 256) {
795 mono_mb_emit_byte (mb, CEE_STLOC_S);
796 mono_mb_emit_byte (mb, num);
797 } else {
798 mono_mb_emit_byte (mb, CEE_PREFIX1);
799 mono_mb_emit_byte (mb, CEE_STLOC);
800 mono_mb_emit_i2 (mb, num);
801 }
802 }
803
804 void
805 mono_mb_emit_icon (MonoMethodBuilder *mb, gint32 value)
806 {
807 if (value >= -1 && value < 8) {
808 mono_mb_emit_byte (mb, CEE_LDC_I4_0 + value);
809 } else if (value >= -128 && value <= 127) {
810 mono_mb_emit_byte (mb, CEE_LDC_I4_S);
811 mono_mb_emit_byte (mb, value);
812 } else {
813 mono_mb_emit_byte (mb, CEE_LDC_I4);
814 mono_mb_emit_i4 (mb, value);
815 }
816 }
817
818 guint32
819 mono_mb_emit_branch (MonoMethodBuilder *mb, guint8 op)
820 {
821 guint32 res;
822 mono_mb_emit_byte (mb, op);
823 res = mb->pos;
824 mono_mb_emit_i4 (mb, 0);
825 return res;
826 }
827
828 static void
829 mono_mb_emit_calli (MonoMethodBuilder *mb, MonoMethodSignature *sig)
830 {
831 mono_mb_emit_byte (mb, CEE_CALLI);
832 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, sig));
833 }
834
835 void
836 mono_mb_emit_managed_call (MonoMethodBuilder *mb, MonoMethod *method, MonoMethodSignature *opt_sig)
837 {
838 mono_mb_emit_byte (mb, CEE_CALL);
839 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method));
840 }
841
842 void
843 mono_mb_emit_native_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, gpointer func)
844 {
845 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
846 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
847 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
848 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
849 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, func));
850 mono_mb_emit_calli (mb, sig);
851 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
852 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
853 }
854
855 static void
856 mono_mb_emit_icall (MonoMethodBuilder *mb, gpointer func)
857 {
858 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
859 mono_mb_emit_byte (mb, CEE_MONO_ICALL);
860 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, func));
861 }
862
863 void
864 mono_mb_emit_exception (MonoMethodBuilder *mb, const char *exc_name, const char *msg)
865 {
866 /* fixme: we need a better way to throw exception,
867 * supporting several exception types and messages */
868 MonoMethod *ctor = NULL;
869
870 MonoClass *mme = mono_class_from_name (mono_defaults.corlib, "System", exc_name);
871 int i;
872 mono_class_init (mme);
873 for (i = 0; i < mme->method.count; ++i) {
874 if (strcmp (mme->methods [i]->name, ".ctor") == 0 && mme->methods [i]->signature->param_count == 0) {
875 ctor = mme->methods [i];
876 break;
877 }
878 }
879 g_assert (ctor);
880 mono_mb_emit_byte (mb, CEE_NEWOBJ);
881 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, ctor));
882 if (msg != NULL) {
883 mono_mb_emit_byte (mb, CEE_DUP);
884 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoException, message));
885 mono_mb_emit_ldstr (mb, (char*)msg);
886 mono_mb_emit_byte (mb, CEE_STIND_I);
887 }
888 mono_mb_emit_byte (mb, CEE_THROW);
889 }
890
891 void
892 mono_mb_emit_add_to_local (MonoMethodBuilder *mb, guint16 local, gint32 incr)
893 {
894 mono_mb_emit_ldloc (mb, local);
895 mono_mb_emit_icon (mb, incr);
896 mono_mb_emit_byte (mb, CEE_ADD);
897 mono_mb_emit_stloc (mb, local);
898 }
899
900 static void
901 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv,
902 int usize, int msize, MonoMarshalSpec *mspec)
903 {
904 switch (conv) {
905 case MONO_MARSHAL_CONV_BOOL_I4:
906 mono_mb_emit_byte (mb, CEE_LDLOC_1);
907 mono_mb_emit_byte (mb, CEE_LDLOC_0);
908 mono_mb_emit_byte (mb, CEE_LDIND_I4);
909 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
910 mono_mb_emit_byte (mb, 3);
911 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
912 mono_mb_emit_byte (mb, CEE_BR_S);
913 mono_mb_emit_byte (mb, 1);
914 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
915 mono_mb_emit_byte (mb, CEE_STIND_I1);
916 break;
917 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
918 mono_mb_emit_byte (mb, CEE_LDLOC_1);
919 mono_mb_emit_byte (mb, CEE_LDLOC_0);
920 mono_mb_emit_byte (mb, CEE_LDIND_I2);
921 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
922 mono_mb_emit_byte (mb, 3);
923 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
924 mono_mb_emit_byte (mb, CEE_BR_S);
925 mono_mb_emit_byte (mb, 1);
926 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
927 mono_mb_emit_byte (mb, CEE_STIND_I1);
928 break;
929 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
930 MonoClass *eclass = NULL;
931 int esize;
932
933 if (type->type == MONO_TYPE_SZARRAY) {
934 eclass = type->data.klass;
935 } else {
936 g_assert_not_reached ();
937 }
938
939 if (eclass->valuetype)
940 esize = mono_class_instance_size (eclass) - sizeof (MonoObject);
941 else
942 esize = sizeof (gpointer);
943
944 /* create a new array */
945 mono_mb_emit_byte (mb, CEE_LDLOC_1);
946 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
947 mono_mb_emit_byte (mb, CEE_NEWARR);
948 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eclass));
949 mono_mb_emit_byte (mb, CEE_STIND_I);
950
951 /* copy the elements */
952 mono_mb_emit_byte (mb, CEE_LDLOC_1);
953 mono_mb_emit_byte (mb, CEE_LDIND_I);
954 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
955 mono_mb_emit_byte (mb, CEE_ADD);
956 mono_mb_emit_byte (mb, CEE_LDLOC_0);
957 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
958 mono_mb_emit_byte (mb, CEE_PREFIX1);
959 mono_mb_emit_byte (mb, CEE_CPBLK);
960
961 break;
962 }
963 case MONO_MARSHAL_CONV_STR_BYVALSTR:
964 mono_mb_emit_byte (mb, CEE_LDLOC_1);
965 mono_mb_emit_byte (mb, CEE_LDLOC_0);
966 mono_mb_emit_icall (mb, mono_string_new_wrapper);
967 mono_mb_emit_byte (mb, CEE_STIND_I);
968 break;
969 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
970 mono_mb_emit_byte (mb, CEE_LDLOC_1);
971 mono_mb_emit_byte (mb, CEE_LDLOC_0);
972 mono_mb_emit_icall (mb, mono_string_from_utf16);
973 mono_mb_emit_byte (mb, CEE_STIND_I);
974 break;
975 case MONO_MARSHAL_CONV_STR_LPTSTR:
976 case MONO_MARSHAL_CONV_STR_LPSTR:
977 mono_mb_emit_byte (mb, CEE_LDLOC_1);
978 mono_mb_emit_byte (mb, CEE_LDLOC_0);
979 mono_mb_emit_byte (mb, CEE_LDIND_I);
980 mono_mb_emit_icall (mb, mono_string_new_wrapper);
981 mono_mb_emit_byte (mb, CEE_STIND_I);
982 break;
983 case MONO_MARSHAL_CONV_STR_LPWSTR:
984 mono_mb_emit_byte (mb, CEE_LDLOC_1);
985 mono_mb_emit_byte (mb, CEE_LDLOC_0);
986 mono_mb_emit_byte (mb, CEE_LDIND_I);
987 mono_mb_emit_icall (mb, mono_string_from_utf16);
988 mono_mb_emit_byte (mb, CEE_STIND_I);
989 break;
990 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
991 MonoClass *klass = mono_class_from_mono_type (type);
992 int src_var, dst_var;
993
994 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
995 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
996
997 /* *dst = new object */
998 mono_mb_emit_byte (mb, CEE_LDLOC_1);
999 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1000 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
1001 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
1002 mono_mb_emit_byte (mb, CEE_STIND_I);
1003
1004 /* save the old src pointer */
1005 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1006 mono_mb_emit_stloc (mb, src_var);
1007 /* save the old dst pointer */
1008 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1009 mono_mb_emit_stloc (mb, dst_var);
1010
1011 /* dst = pointer to newly created object data */
1012 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1013 mono_mb_emit_byte (mb, CEE_LDIND_I);
1014 mono_mb_emit_icon (mb, sizeof (MonoObject));
1015 mono_mb_emit_byte (mb, CEE_ADD);
1016 mono_mb_emit_byte (mb, CEE_STLOC_1);
1017
1018 emit_struct_conv (mb, klass, TRUE);
1019
1020 /* restore the old src pointer */
1021 mono_mb_emit_ldloc (mb, src_var);
1022 mono_mb_emit_byte (mb, CEE_STLOC_0);
1023 /* restore the old dst pointer */
1024 mono_mb_emit_ldloc (mb, dst_var);
1025 mono_mb_emit_byte (mb, CEE_STLOC_1);
1026 break;
1027 }
1028 case MONO_MARSHAL_CONV_DEL_FTN: {
1029 /* fixme: we never convert functions back to delegates, dont
1030 // know if thats the correct behaviour
1031 */
1032 break;
1033 }
1034 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1035 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1036 break;
1037 case MONO_MARSHAL_CONV_STR_BSTR:
1038 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1039 case MONO_MARSHAL_CONV_STR_TBSTR:
1040 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1041 default:
1042 g_warning ("marshaling conversion %d not implemented", conv);
1043 g_assert_not_reached ();
1044 }
1045 }
1046
1047 static gpointer
1048 conv_to_icall (MonoMarshalConv conv)
1049 {
1050 switch (conv) {
1051 case MONO_MARSHAL_CONV_STR_LPWSTR:
1052 return mono_marshal_string_to_utf16;
1053 case MONO_MARSHAL_CONV_LPWSTR_STR:
1054 return mono_string_from_utf16;
1055 case MONO_MARSHAL_CONV_LPSTR_STR:
1056 return mono_string_new_wrapper;
1057 case MONO_MARSHAL_CONV_STR_LPTSTR:
1058 case MONO_MARSHAL_CONV_STR_LPSTR:
1059 return mono_string_to_lpstr;
1060 case MONO_MARSHAL_CONV_STR_BSTR:
1061 return mono_string_to_bstr;
1062 case MONO_MARSHAL_CONV_STR_TBSTR:
1063 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1064 return mono_string_to_ansibstr;
1065 case MONO_MARSHAL_CONV_SB_LPSTR:
1066 case MONO_MARSHAL_CONV_SB_LPTSTR:
1067 return mono_string_builder_to_utf8;
1068 case MONO_MARSHAL_CONV_SB_LPWSTR:
1069 return mono_string_builder_to_utf16;
1070 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1071 return mono_array_to_savearray;
1072 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1073 return mono_array_to_lparray;
1074 case MONO_MARSHAL_CONV_DEL_FTN:
1075 return mono_delegate_to_ftnptr;
1076 case MONO_MARSHAL_CONV_FTN_DEL:
1077 return mono_ftnptr_to_delegate;
1078 case MONO_MARSHAL_CONV_LPSTR_SB:
1079 case MONO_MARSHAL_CONV_LPTSTR_SB:
1080 return mono_string_utf8_to_builder;
1081 case MONO_MARSHAL_CONV_LPWSTR_SB:
1082 return mono_string_utf16_to_builder;
1083 case MONO_MARSHAL_FREE_ARRAY:
1084 return mono_marshal_free_array;
1085 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1086 return mono_string_to_byvalstr;
1087 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1088 return mono_string_to_byvalwstr;
1089 default:
1090 g_assert_not_reached ();
1091 }
1092
1093 return NULL;
1094 }
1095
1096 static void
1097 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, int usize, int msize,
1098 MonoMarshalSpec *mspec)
1099 {
1100 int pos;
1101
1102 switch (conv) {
1103 case MONO_MARSHAL_CONV_BOOL_I4:
1104 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1105 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1106 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1107 mono_mb_emit_byte (mb, CEE_STIND_I4);
1108 break;
1109 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1110 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1111 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1112 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1113 mono_mb_emit_byte (mb, CEE_NEG);
1114 mono_mb_emit_byte (mb, CEE_STIND_I2);
1115 break;
1116 case MONO_MARSHAL_CONV_STR_LPWSTR:
1117 case MONO_MARSHAL_CONV_STR_LPSTR:
1118 case MONO_MARSHAL_CONV_STR_LPTSTR:
1119 case MONO_MARSHAL_CONV_STR_BSTR:
1120 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1121 case MONO_MARSHAL_CONV_STR_TBSTR: {
1122 int pos;
1123
1124 /* free space if free == true */
1125 mono_mb_emit_byte (mb, CEE_LDLOC_2);
1126 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1127 pos = mb->pos;
1128 mono_mb_emit_byte (mb, 0);
1129 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1130 mono_mb_emit_byte (mb, CEE_LDIND_I);
1131 mono_mb_emit_icall (mb, g_free);
1132 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
1133
1134 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1135 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1136 mono_mb_emit_byte (mb, CEE_LDIND_I);
1137 mono_mb_emit_icall (mb, conv_to_icall (conv));
1138 mono_mb_emit_byte (mb, CEE_STIND_I);
1139 break;
1140 }
1141 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1142 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1143 case MONO_MARSHAL_CONV_DEL_FTN:
1144 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1145 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1146 mono_mb_emit_byte (mb, CEE_LDIND_I);
1147 mono_mb_emit_icall (mb, conv_to_icall (conv));
1148 mono_mb_emit_byte (mb, CEE_STIND_I);
1149 break;
1150 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1151 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1152 if (!usize)
1153 break;
1154
1155 mono_mb_emit_byte (mb, CEE_LDLOC_1); /* dst */
1156 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1157 mono_mb_emit_byte (mb, CEE_LDIND_I); /* src String */
1158 mono_mb_emit_icon (mb, usize);
1159 mono_mb_emit_icall (mb, conv_to_icall (conv));
1160 break;
1161 }
1162 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1163 MonoClass *eclass = NULL;
1164 int esize;
1165
1166 if (type->type == MONO_TYPE_SZARRAY) {
1167 eclass = type->data.klass;
1168 } else {
1169 g_assert_not_reached ();
1170 }
1171
1172 if (eclass->valuetype)
1173 esize = mono_class_native_size (eclass, NULL);
1174 else
1175 esize = sizeof (gpointer);
1176
1177 if (!usize)
1178 break;
1179
1180 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1181 mono_mb_emit_byte (mb, CEE_LDIND_I);
1182 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1183 pos = mb->pos;
1184 mono_mb_emit_byte (mb, 0);
1185
1186 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1187 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1188 mono_mb_emit_byte (mb, CEE_LDIND_I);
1189 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1190 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1191 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1192 mono_mb_emit_byte (mb, CEE_ADD);
1193 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1194 mono_mb_emit_byte (mb, CEE_PREFIX1);
1195 mono_mb_emit_byte (mb, CEE_CPBLK);
1196 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
1197 break;
1198 }
1199 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1200 int src_var, dst_var;
1201
1202 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1203 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1204
1205 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1206 mono_mb_emit_byte (mb, CEE_LDIND_I);
1207 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1208 pos = mb->pos;
1209 mono_mb_emit_byte (mb, 0);
1210
1211 /* save the old src pointer */
1212 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1213 mono_mb_emit_stloc (mb, src_var);
1214 /* save the old dst pointer */
1215 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1216 mono_mb_emit_stloc (mb, dst_var);
1217
1218 /* src = pointer to object data */
1219 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1220 mono_mb_emit_byte (mb, CEE_LDIND_I);
1221 mono_mb_emit_icon (mb, sizeof (MonoObject));
1222 mono_mb_emit_byte (mb, CEE_ADD);
1223 mono_mb_emit_byte (mb, CEE_STLOC_0);
1224
1225 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1226
1227 /* restore the old src pointer */
1228 mono_mb_emit_ldloc (mb, src_var);
1229 mono_mb_emit_byte (mb, CEE_STLOC_0);
1230 /* restore the old dst pointer */
1231 mono_mb_emit_ldloc (mb, dst_var);
1232 mono_mb_emit_byte (mb, CEE_STLOC_1);
1233
1234 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
1235 break;
1236 }
1237 default: {
1238 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1239 MonoException *exc = mono_get_exception_not_implemented (msg);
1240 g_warning (msg);
1241 g_free (msg);
1242 mono_raise_exception (exc);
1243 }
1244 }
1245 }
1246
1247 static void
1248 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1249 {
1250 MonoMarshalType *info;
1251 int i;
1252
1253 if (klass->parent)
1254 emit_struct_conv(mb, klass->parent, to_object);
1255
1256 info = mono_marshal_load_type_info (klass);
1257
1258 if (info->native_size == 0)
1259 return;
1260
1261 if (klass->blittable) {
1262 int msize = mono_class_value_size (klass, NULL);
1263 g_assert (msize == info->native_size);
1264 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1265 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1266 mono_mb_emit_icon (mb, msize);
1267 mono_mb_emit_byte (mb, CEE_PREFIX1);
1268 mono_mb_emit_byte (mb, CEE_CPBLK);
1269
1270 mono_mb_emit_add_to_local (mb, 0, msize);
1271 mono_mb_emit_add_to_local (mb, 1, msize);
1272 return;
1273 }
1274
1275 for (i = 0; i < info->num_fields; i++) {
1276 MonoMarshalNative ntype;
1277 MonoMarshalConv conv;
1278 MonoType *ftype = info->fields [i].field->type;
1279 int msize = 0;
1280 int usize = 0;
1281 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1282
1283 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1284 continue;
1285
1286 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1287
1288 if (last_field) {
1289 msize = klass->instance_size - info->fields [i].field->offset;
1290 usize = info->native_size - info->fields [i].offset;
1291 } else {
1292 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1293 usize = info->fields [i + 1].offset - info->fields [i].offset;
1294 }
1295 if ((msize < 0) || (usize < 0))
1296 /* This happens with GC aware auto layout */
1297 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute", mono_type_full_name (&klass->byval_arg));
1298
1299 g_assert ((msize >= 0) && (usize >= 0));
1300
1301 switch (conv) {
1302 case MONO_MARSHAL_CONV_NONE: {
1303 int t;
1304
1305 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1306 ftype->type == MONO_TYPE_U) {
1307 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1308 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1309 mono_mb_emit_byte (mb, CEE_LDIND_I);
1310 mono_mb_emit_byte (mb, CEE_STIND_I);
1311 break;
1312 }
1313
1314 t = ftype->type;
1315 handle_enum:
1316 switch (t) {
1317 case MONO_TYPE_I4:
1318 case MONO_TYPE_U4:
1319 #if SIZEOF_VOID_P == 4
1320 case MONO_TYPE_PTR:
1321 #endif
1322 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1323 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1324 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1325 mono_mb_emit_byte (mb, CEE_STIND_I4);
1326 break;
1327 case MONO_TYPE_I1:
1328 case MONO_TYPE_U1:
1329 case MONO_TYPE_BOOLEAN:
1330 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1331 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1332 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1333 mono_mb_emit_byte (mb, CEE_STIND_I1);
1334 break;
1335 case MONO_TYPE_I2:
1336 case MONO_TYPE_U2:
1337 case MONO_TYPE_CHAR:
1338 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1339 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1340 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1341 mono_mb_emit_byte (mb, CEE_STIND_I2);
1342 break;
1343 case MONO_TYPE_I8:
1344 case MONO_TYPE_U8:
1345 #if SIZEOF_VOID_P == 8
1346 case MONO_TYPE_PTR:
1347 #endif
1348 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1349 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1350 mono_mb_emit_byte (mb, CEE_LDIND_I8);
1351 mono_mb_emit_byte (mb, CEE_STIND_I8);
1352 break;
1353 case MONO_TYPE_R4:
1354 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1355 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1356 mono_mb_emit_byte (mb, CEE_LDIND_R4);
1357 mono_mb_emit_byte (mb, CEE_STIND_R4);
1358 break;
1359 case MONO_TYPE_R8:
1360 mono_mb_emit_byte (mb, CEE_LDLOC_1);
1361 mono_mb_emit_byte (mb, CEE_LDLOC_0);
1362 mono_mb_emit_byte (mb, CEE_LDIND_R8);
1363 mono_mb_emit_byte (mb, CEE_STIND_R8);
1364 break;
1365 case MONO_TYPE_VALUETYPE:
1366 if (ftype->data.klass->enumtype) {
1367 t = ftype->data.klass->enum_basetype->type;
1368 goto handle_enum;
1369 }
1370 emit_struct_conv (mb, ftype->data.klass, to_object);
1371 continue;
1372 default:
1373 g_warning ("marshaling type %02x not implemented", ftype->type);
1374 g_assert_not_reached ();
1375 }
1376 break;
1377 }
1378 default:
1379 if (to_object)
1380 emit_ptr_to_object_conv (mb, ftype, conv, usize, msize, info->fields [i].mspec);
1381 else
1382 emit_object_to_ptr_conv (mb, ftype, conv, usize, msize, info->fields [i].mspec);
1383 }
1384
1385 if (to_object) {
1386 mono_mb_emit_add_to_local (mb, 0, usize);
1387 mono_mb_emit_add_to_local (mb, 1, msize);
1388 } else {
1389 mono_mb_emit_add_to_local (mb, 0, msize);
1390 mono_mb_emit_add_to_local (mb, 1, usize);
1391 }
1392 }
1393 }
1394
1395 static void
1396 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1397 {
1398 /* Call DestroyStructure */
1399 /* FIXME: Only do this if needed */
1400 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1401 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
1402 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
1403 mono_mb_emit_ldloc (mb, struct_var);
1404 mono_mb_emit_icall (mb, mono_struct_delete_old);
1405 }
1406
1407 static void
1408 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
1409 {
1410 int pos_noabort;
1411
1412 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1413 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
1414 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, (gpointer) mono_thread_interruption_request_flag ()));
1415 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1416 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1417
1418 mono_mb_emit_icall (mb, checkpoint_func);
1419
1420 mono_mb_patch_addr (mb, pos_noabort, mb->pos - (pos_noabort + 4));
1421 }
1422
1423 static void
1424 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1425 {
1426 if (strstr (mb->method->name, "mono_thread_interruption_checkpoint"))
1427 return;
1428
1429 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
1430 }
1431
1432 static void
1433 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
1434 {
1435 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
1436 }
1437
1438 static MonoAsyncResult *
1439 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
1440 {
1441 MonoMethodMessage *msg;
1442 MonoDelegate *async_callback;
1443 MonoObject *state;
1444 MonoMethod *im;
1445 MonoClass *klass;
1446 MonoMethod *method = NULL;
1447 int i;
1448
1449 g_assert (delegate);
1450
1451 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1452
1453 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1454 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
1455
1456 /* If the target is a proxy, make a direct call. Is proxy's work
1457 // to make the call asynchronous.
1458 */
1459 MonoAsyncResult *ares;
1460 MonoObject *exc;
1461 MonoArray *out_args;
1462 HANDLE handle;
1463 method = delegate->method_info->method;
1464
1465 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
1466 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
1467 ares = mono_async_result_new (mono_domain_get (), handle, state, handle);
1468 ares->async_delegate = (MonoObject *)delegate;
1469 ares->async_callback = (MonoObject *)async_callback;
1470 msg->async_result = ares;
1471 msg->call_type = CallType_BeginInvoke;
1472
1473 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1474 return ares;
1475 }
1476 }
1477
1478 klass = delegate->object.vtable->klass;
1479
1480 method = mono_get_delegate_invoke (klass);
1481 for (i = 0; i < klass->method.count; ++i) {
1482 if (klass->methods [i]->name[0] == 'B' &&
1483 !strcmp ("BeginInvoke", klass->methods [i]->name)) {
1484 method = klass->methods [i];
1485 break;
1486 }
1487 }
1488
1489 g_assert (method != NULL);
1490
1491 im = mono_get_delegate_invoke (method->klass);
1492 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
1493
1494 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
1495 }
1496
1497 static int
1498 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
1499 {
1500 int i, params_var, tmp_var;
1501
1502 /* allocate local (pointer) *params[] */
1503 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1504 /* allocate local (pointer) tmp */
1505 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1506
1507 /* alloate space on stack to store an array of pointers to the arguments */
1508 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
1509 mono_mb_emit_byte (mb, CEE_PREFIX1);
1510 mono_mb_emit_byte (mb, CEE_LOCALLOC);
1511 mono_mb_emit_stloc (mb, params_var);
1512
1513 /* tmp = params */
1514 mono_mb_emit_ldloc (mb, params_var);
1515 mono_mb_emit_stloc (mb, tmp_var);
1516
1517 if (save_this && sig->hasthis) {
1518 mono_mb_emit_ldloc (mb, tmp_var);
1519 mono_mb_emit_ldarg_addr (mb, 0);
1520 mono_mb_emit_byte (mb, CEE_STIND_I);
1521 /* tmp = tmp + sizeof (gpointer) */
1522 if (sig->param_count)
1523 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1524
1525 }
1526
1527 for (i = 0; i < sig->param_count; i++) {
1528 mono_mb_emit_ldloc (mb, tmp_var);
1529 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
1530 mono_mb_emit_byte (mb, CEE_STIND_I);
1531 /* tmp = tmp + sizeof (gpointer) */
1532 if (i < (sig->param_count - 1))
1533 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1534 }
1535
1536 return params_var;
1537 }
1538
1539 static char*
1540 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
1541 {
1542 int i;
1543 char *result;
1544 GString *res = g_string_new ("");
1545
1546 if (prefix) {
1547 g_string_append (res, prefix);
1548 g_string_append_c (res, '_');
1549 }
1550
1551 mono_type_get_desc (res, sig->ret, FALSE);
1552
1553 for (i = 0; i < sig->param_count; ++i) {
1554 g_string_append_c (res, '_');
1555 mono_type_get_desc (res, sig->params [i], FALSE);
1556 }
1557 result = res->str;
1558 g_string_free (res, FALSE);
1559 return result;
1560 }
1561
1562 /**
1563 * mono_marshal_get_string_encoding:
1564 *
1565 * Return the string encoding which should be used for a given parameter.
1566 */
1567 static MonoMarshalNative
1568 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1569 {
1570 /* First try the parameter marshal info */
1571 if (spec) {
1572 if (spec->native == MONO_NATIVE_LPARRAY) {
1573 if (spec->data.array_data.elem_type != 0)
1574 return spec->data.array_data.elem_type;
1575 }
1576 else
1577 return spec->native;
1578 }
1579
1580 if (!piinfo)
1581 return MONO_NATIVE_LPSTR;
1582
1583 /* Then try the method level marshal info */
1584 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1585 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1586 return MONO_NATIVE_LPSTR;
1587 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1588 return MONO_NATIVE_LPWSTR;
1589 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1590 return MONO_NATIVE_LPTSTR;
1591 default:
1592 return MONO_NATIVE_LPSTR;
1593 }
1594 }
1595
1596 static MonoMarshalConv
1597 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1598 {
1599 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
1600
1601 switch (encoding) {
1602 case MONO_NATIVE_LPWSTR:
1603 return MONO_MARSHAL_CONV_STR_LPWSTR;
1604 case MONO_NATIVE_LPSTR:
1605 return MONO_MARSHAL_CONV_STR_LPSTR;
1606 case MONO_NATIVE_LPTSTR:
1607 return MONO_MARSHAL_CONV_STR_LPTSTR;
1608 default:
1609 return -1;
1610 }
1611 }
1612
1613 static MonoMarshalConv
1614 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1615 {
1616 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
1617
1618 switch (encoding) {
1619 case MONO_NATIVE_LPWSTR:
1620 return MONO_MARSHAL_CONV_SB_LPWSTR;
1621 break;
1622 case MONO_NATIVE_LPSTR:
1623 return MONO_MARSHAL_CONV_SB_LPSTR;
1624 break;
1625 case MONO_NATIVE_LPTSTR:
1626 return MONO_MARSHAL_CONV_SB_LPTSTR;
1627 break;
1628 default:
1629 return -1;
1630 }
1631 }
1632
1633 static MonoMarshalConv
1634 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
1635 {
1636 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
1637
1638 *need_free = TRUE;
1639
1640 switch (encoding) {
1641 case MONO_NATIVE_LPWSTR:
1642 /*
1643 * mono_string_builder_to_utf16 does not allocate a
1644 * new buffer, so no need to free it.
1645 */
1646 *need_free = FALSE;
1647 return MONO_MARSHAL_CONV_LPWSTR_SB;
1648 case MONO_NATIVE_LPSTR:
1649 return MONO_MARSHAL_CONV_LPSTR_SB;
1650 break;
1651 case MONO_NATIVE_LPTSTR:
1652 return MONO_MARSHAL_CONV_LPTSTR_SB;
1653 break;
1654 default:
1655 return -1;
1656 }
1657 }
1658
1659 /*
1660 * Return whenever a field of a native structure or an array member needs to
1661 * be freed.
1662 */
1663 static gboolean
1664 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
1665 {
1666 MonoMarshalNative encoding;
1667 MonoMarshalConv conv;
1668
1669 switch (t->type) {
1670 case MONO_TYPE_VALUETYPE:
1671 /* FIXME: Optimize this */
1672 return TRUE;
1673 case MONO_TYPE_OBJECT:
1674 case MONO_TYPE_CLASS:
1675 if (t->data.klass == mono_defaults.stringbuilder_class) {
1676 gboolean need_free;
1677 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
1678 return need_free;
1679 }
1680 return FALSE;
1681 case MONO_TYPE_STRING:
1682 encoding = mono_marshal_get_string_encoding (piinfo, spec);
1683 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
1684 default:
1685 return FALSE;
1686 }
1687 }
1688
1689 static inline MonoMethod*
1690 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
1691 {
1692 MonoMethod *res;
1693
1694 EnterCriticalSection (&marshal_mutex);
1695 res = g_hash_table_lookup (cache, key);
1696 LeaveCriticalSection (&marshal_mutex);
1697 return res;
1698 }
1699
1700 /* Create the method from the builder and place it in the cache */
1701 static inline MonoMethod*
1702 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
1703 MonoMethodBuilder *mb, MonoMethodSignature *sig,
1704 int max_stack)
1705 {
1706 MonoMethod *res;
1707
1708 EnterCriticalSection (&marshal_mutex);
1709 res = g_hash_table_lookup (cache, key);
1710 if (!res) {
1711 /* This does not acquire any locks */
1712 res = mono_mb_create_method (mb, sig, max_stack);
1713 g_hash_table_insert (cache, key, res);
1714 g_hash_table_insert (wrapper_hash, res, key);
1715 }
1716 LeaveCriticalSection (&marshal_mutex);
1717
1718 return res;
1719 }
1720
1721
1722 static inline MonoMethod*
1723 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
1724 {
1725 MonoMethod *res = NULL;
1726 MonoRemotingMethods *wrps;
1727
1728 EnterCriticalSection (&marshal_mutex);
1729 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
1730
1731 if (wrps) {
1732 switch (wrapper_type) {
1733 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
1734 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
1735 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
1736 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
1737 }
1738 }
1739
1740 LeaveCriticalSection (&marshal_mutex);
1741 return res;
1742 }
1743
1744 /* Create the method from the builder and place it in the cache */
1745 static inline MonoMethod*
1746 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
1747 MonoMethodSignature *sig, int max_stack)
1748 {
1749 MonoMethod **res = NULL;
1750 MonoRemotingMethods *wrps;
1751 GHashTable *cache = key->klass->image->remoting_invoke_cache;
1752
1753 EnterCriticalSection (&marshal_mutex);
1754 wrps = g_hash_table_lookup (cache, key);
1755 if (!wrps) {
1756 wrps = g_new0 (MonoRemotingMethods, 1);
1757 g_hash_table_insert (cache, key, wrps);
1758 }
1759
1760 switch (mb->method->wrapper_type) {
1761 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
1762 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
1763 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
1764 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
1765 default: g_assert_not_reached (); break;
1766 }
1767
1768 if (*res == NULL) {
1769 /* This does not acquire any locks */
1770 *res = mono_mb_create_method (mb, sig, max_stack);
1771 g_hash_table_insert (wrapper_hash, *res, key);
1772 }
1773
1774 LeaveCriticalSection (&marshal_mutex);
1775
1776 return *res;
1777 }
1778
1779 MonoMethod *
1780 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
1781 {
1782 MonoMethod *res;
1783
1784 if (wrapper->wrapper_type == MONO_WRAPPER_NONE)
1785 return wrapper;
1786
1787 EnterCriticalSection (&marshal_mutex);
1788 res = g_hash_table_lookup (wrapper_hash, wrapper);
1789 LeaveCriticalSection (&marshal_mutex);
1790 return res;
1791 }
1792
1793 MonoMethod *
1794 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
1795 {
1796 MonoMethodSignature *sig;
1797 static MonoMethodSignature *csig = NULL;
1798 MonoMethodBuilder *mb;
1799 MonoMethod *res;
1800 GHashTable *cache;
1801 int params_var;
1802 char *name;
1803
1804 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
1805 !strcmp (method->name, "BeginInvoke"));
1806
1807 sig = signature_no_pinvoke (method->signature);
1808
1809 cache = method->klass->image->delegate_begin_invoke_cache;
1810 if ((res = mono_marshal_find_in_cache (cache, sig)))
1811 return res;
1812
1813 g_assert (sig->hasthis);
1814
1815 if (!csig) {
1816 csig = mono_metadata_signature_alloc (method->klass->image, 2);
1817
1818 /* MonoAsyncResult * begin_invoke (MonoDelegate *delegate, gpointer params[]) */
1819 csig->ret = &mono_defaults.object_class->byval_arg;
1820 csig->params [0] = &mono_defaults.object_class->byval_arg;
1821 csig->params [1] = &mono_defaults.int_class->byval_arg;
1822 }
1823
1824 name = mono_signature_to_name (sig, "begin_invoke");
1825 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
1826 g_free (name);
1827
1828 mb->method->save_lmf = 1;
1829
1830 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
1831
1832 mono_mb_emit_ldarg (mb, 0);
1833 mono_mb_emit_ldloc (mb, params_var);
1834 mono_mb_emit_native_call (mb, csig, mono_delegate_begin_invoke);
1835 emit_thread_interrupt_checkpoint (mb);
1836 mono_mb_emit_byte (mb, CEE_RET);
1837
1838 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
1839 mono_mb_free (mb);
1840 return res;
1841 }
1842
1843 static MonoObject *
1844 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
1845 {
1846 MonoDomain *domain = mono_domain_get ();
1847 MonoAsyncResult *ares;
1848 MonoMethod *method = NULL;
1849 MonoMethodSignature *sig;
1850 MonoMethodMessage *msg;
1851 MonoObject *res, *exc;
1852 MonoArray *out_args;
1853 MonoClass *klass;
1854 int i;
1855
1856 g_assert (delegate);
1857
1858 if (!delegate->method_info || !delegate->method_info->method)
1859 g_assert_not_reached ();
1860
1861 klass = delegate->object.vtable->klass;
1862
1863 for (i = 0; i < klass->method.count; ++i) {
1864 if (klass->methods [i]->name[0] == 'E' &&
1865 !strcmp ("EndInvoke", klass->methods [i]->name)) {
1866 method = klass->methods [i];
1867 break;
1868 }
1869 }
1870
1871 g_assert (method != NULL);
1872
1873 sig = signature_no_pinvoke (method->signature);
1874
1875 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
1876
1877 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
1878 g_assert (ares);
1879
1880 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1881 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1882 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
1883 mono_message_init (domain, msg, delegate->method_info, NULL);
1884 msg->call_type = CallType_EndInvoke;
1885 msg->async_result = ares;
1886 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1887 }
1888 else
1889 res = mono_thread_pool_finish (ares, &out_args, &exc);
1890
1891 if (exc) {
1892 if (((MonoException*)exc)->stack_trace) {
1893 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
1894 char *tmp;
1895 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
1896 g_free (strace);
1897 ((MonoException*)exc)->stack_trace = mono_string_new (domain, tmp);
1898 g_free (tmp);
1899 }
1900 mono_raise_exception ((MonoException*)exc);
1901 }
1902
1903 mono_method_return_message_restore (method, params, out_args);
1904 return res;
1905 }
1906
1907 static void
1908 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
1909 {
1910 if (return_type->byref)
1911 return_type = &mono_defaults.int_class->byval_arg;
1912 else if (return_type->type == MONO_TYPE_VALUETYPE && return_type->data.klass->enumtype)
1913 return_type = return_type->data.klass->enum_basetype;
1914
1915 switch (return_type->type) {
1916 case MONO_TYPE_VOID:
1917 g_assert_not_reached ();
1918 break;
1919 case MONO_TYPE_PTR:
1920 case MONO_TYPE_STRING:
1921 case MONO_TYPE_CLASS:
1922 case MONO_TYPE_OBJECT:
1923 case MONO_TYPE_ARRAY:
1924 case MONO_TYPE_SZARRAY:
1925 /* nothing to do */
1926 break;
1927 case MONO_TYPE_U1:
1928 case MONO_TYPE_BOOLEAN:
1929 mono_mb_emit_byte (mb, CEE_UNBOX);
1930 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1931 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1932 break;
1933 case MONO_TYPE_I1:
1934 mono_mb_emit_byte (mb, CEE_UNBOX);
1935 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1936 mono_mb_emit_byte (mb, CEE_LDIND_I1);
1937 break;
1938 case MONO_TYPE_U2:
1939 case MONO_TYPE_CHAR:
1940 mono_mb_emit_byte (mb, CEE_UNBOX);
1941 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1942 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1943 break;
1944 case MONO_TYPE_I2:
1945 mono_mb_emit_byte (mb, CEE_UNBOX);
1946 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1947 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1948 break;
1949 case MONO_TYPE_I:
1950 case MONO_TYPE_U:
1951 mono_mb_emit_byte (mb, CEE_UNBOX);
1952 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1953 mono_mb_emit_byte (mb, CEE_LDIND_I);
1954 break;
1955 case MONO_TYPE_I4:
1956 mono_mb_emit_byte (mb, CEE_UNBOX);
1957 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1958 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1959 break;
1960 case MONO_TYPE_U4:
1961 mono_mb_emit_byte (mb, CEE_UNBOX);
1962 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1963 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1964 break;
1965 case MONO_TYPE_U8:
1966 case MONO_TYPE_I8:
1967 mono_mb_emit_byte (mb, CEE_UNBOX);
1968 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1969 mono_mb_emit_byte (mb, CEE_LDIND_I8);
1970 break;
1971 case MONO_TYPE_R4:
1972 mono_mb_emit_byte (mb, CEE_UNBOX);
1973 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1974 mono_mb_emit_byte (mb, CEE_LDIND_R4);
1975 break;
1976 case MONO_TYPE_R8:
1977 mono_mb_emit_byte (mb, CEE_UNBOX);
1978 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (return_type)));
1979 mono_mb_emit_byte (mb, CEE_LDIND_R8);
1980 break;
1981 case MONO_TYPE_VALUETYPE: {
1982 int class;
1983 mono_mb_emit_byte (mb, CEE_UNBOX);
1984 class = mono_mb_add_data (mb, mono_class_from_mono_type (return_type));
1985 mono_mb_emit_i4 (mb, class);
1986 mono_mb_emit_byte (mb, CEE_LDOBJ);
1987 mono_mb_emit_i4 (mb, class);
1988 break;
1989 }
1990 default:
1991 g_warning ("type 0x%x not handled", return_type->type);
1992 g_assert_not_reached ();
1993 }
1994
1995 mono_mb_emit_byte (mb, CEE_RET);
1996 }
1997
1998 MonoMethod *
1999 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2000 {
2001 MonoMethodSignature *sig;
2002 static MonoMethodSignature *csig = NULL;
2003 MonoMethodBuilder *mb;
2004 MonoMethod *res;
2005 GHashTable *cache;
2006 int params_var;
2007 char *name;
2008
2009 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2010 !strcmp (method->name, "EndInvoke"));
2011
2012 sig = signature_no_pinvoke (method->signature);
2013
2014 cache = method->klass->image->delegate_end_invoke_cache;
2015 if ((res = mono_marshal_find_in_cache (cache, sig)))
2016 return res;
2017
2018 g_assert (sig->hasthis);
2019
2020 if (!csig) {
2021 csig = mono_metadata_signature_alloc (method->klass->image, 2);
2022
2023 /* MonoObject *end_invoke (MonoDelegate *delegate, gpointer params[]) */
2024 csig->ret = &mono_defaults.object_class->byval_arg;
2025 csig->params [0] = &mono_defaults.object_class->byval_arg;
2026 csig->params [1] = &mono_defaults.int_class->byval_arg;
2027 }
2028
2029 name = mono_signature_to_name (sig, "end_invoke");
2030 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2031 g_free (name);
2032
2033 mb->method->save_lmf = 1;
2034
2035 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2036
2037 mono_mb_emit_ldarg (mb, 0);
2038 mono_mb_emit_ldloc (mb, params_var);
2039 mono_mb_emit_native_call (mb, csig, mono_delegate_end_invoke);
2040 emit_thread_interrupt_checkpoint (mb);
2041
2042 if (sig->ret->type == MONO_TYPE_VOID) {
2043 mono_mb_emit_byte (mb, CEE_POP);
2044 mono_mb_emit_byte (mb, CEE_RET);
2045 } else
2046 mono_mb_emit_restore_result (mb, sig->ret);
2047
2048 res = mono_mb_create_and_cache (cache, sig,
2049 mb, sig, sig->param_count + 16);
2050 mono_mb_free (mb);
2051
2052 return res;
2053 }
2054
2055 static MonoObject *
2056 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2057 {
2058 MonoMethodMessage *msg;
2059 MonoTransparentProxy *this;
2060 MonoObject *res, *exc;
2061 MonoArray *out_args;
2062
2063 this = *((MonoTransparentProxy **)params [0]);
2064
2065 g_assert (this);
2066 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2067
2068 /* skip the this pointer */
2069 params++;
2070
2071 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2072 {
2073 int i;
2074 MonoMethodSignature *sig = method->signature;
2075 int count = sig->param_count;
2076 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2077
2078 for (i=0; i<count; i++) {
2079 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2080 if (class->valuetype) {
2081 if (sig->params [i]->byref)
2082 mparams[i] = *((gpointer *)params [i]);
2083 else
2084 mparams[i] = params [i];
2085 } else {
2086 mparams[i] = *((gpointer**)params [i]);
2087 }
2088 }
2089
2090 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2091 }
2092
2093 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2094
2095 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2096
2097 if (exc)
2098 mono_raise_exception ((MonoException *)exc);
2099
2100 mono_method_return_message_restore (method, params, out_args);
2101
2102 return res;
2103 }
2104
2105 MonoMethod *
2106 mono_marshal_get_remoting_invoke (MonoMethod *method)
2107 {
2108 MonoMethodSignature *sig;
2109 static MonoMethodSignature *csig = NULL;
2110 MonoMethodBuilder *mb;
2111 MonoMethod *res;
2112 int params_var;
2113
2114 g_assert (method);
2115
2116 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2117 return method;
2118
2119 sig = signature_no_pinvoke (method->signature);
2120
2121 /* we cant remote methods without this pointer */
2122 if (!sig->hasthis)
2123 return method;
2124
2125 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2126 return res;
2127
2128 if (!csig) {
2129 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2130 csig->params [0] = &mono_defaults.int_class->byval_arg;
2131 csig->params [1] = &mono_defaults.int_class->byval_arg;
2132 csig->ret = &mono_defaults.object_class->byval_arg;
2133 csig->pinvoke = 1;
2134 }
2135
2136 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2137 mb->method->save_lmf = 1;
2138
2139 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2140
2141 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2142 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2143 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method));
2144 mono_mb_emit_ldloc (mb, params_var);
2145 mono_mb_emit_native_call (mb, csig, mono_remoting_wrapper);
2146 emit_thread_interrupt_checkpoint (mb);
2147
2148 if (sig->ret->type == MONO_TYPE_VOID) {
2149 mono_mb_emit_byte (mb, CEE_POP);
2150 mono_mb_emit_byte (mb, CEE_RET);
2151 } else {
2152 mono_mb_emit_restore_result (mb, sig->ret);
2153 }
2154
2155 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2156 mono_mb_free (mb);
2157
2158 return res;
2159 }
2160
2161 /* mono_get_xdomain_marshal_type()
2162 * Returns the kind of marshalling that a type needs for cross domain calls.
2163 */
2164 static MonoXDomainMarshalType
2165 mono_get_xdomain_marshal_type (MonoType *t)
2166 {
2167 switch (t->type) {
2168 case MONO_TYPE_VOID:
2169 g_assert_not_reached ();
2170 break;
2171 case MONO_TYPE_U1:
2172 case MONO_TYPE_I1:
2173 case MONO_TYPE_BOOLEAN:
2174 case MONO_TYPE_U2:
2175 case MONO_TYPE_I2:
2176 case MONO_TYPE_CHAR:
2177 case MONO_TYPE_U4:
2178 case MONO_TYPE_I4:
2179 case MONO_TYPE_I8:
2180 case MONO_TYPE_U8:
2181 case MONO_TYPE_R4:
2182 case MONO_TYPE_R8:
2183 return MONO_MARSHAL_NONE;
2184 case MONO_TYPE_STRING:
2185 return MONO_MARSHAL_COPY;
2186 case MONO_TYPE_ARRAY:
2187 case MONO_TYPE_SZARRAY: {
2188 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
2189 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
2190 return MONO_MARSHAL_COPY;
2191 break;
2192 }
2193 }
2194
2195 if (mono_class_from_mono_type (t) == mono_defaults.stringbuilder_class)
2196 return MONO_MARSHAL_COPY;
2197
2198 return MONO_MARSHAL_SERIALIZE;
2199 }
2200
2201
2202 /* mono_marshal_xdomain_copy_value
2203 * Makes a copy of "val" suitable for the current domain.
2204 */
2205 static MonoObject *
2206 mono_marshal_xdomain_copy_value (MonoObject *val)
2207 {
2208 MonoDomain *domain;
2209 if (val == NULL) return NULL;
2210
2211 domain = mono_domain_get ();
2212
2213 switch (mono_object_class (val)->byval_arg.type) {
2214 case MONO_TYPE_VOID:
2215 g_assert_not_reached ();
2216 break;
2217 case MONO_TYPE_U1:
2218 case MONO_TYPE_I1:
2219 case MONO_TYPE_BOOLEAN:
2220 case MONO_TYPE_U2:
2221 case MONO_TYPE_I2:
2222 case MONO_TYPE_CHAR:
2223 case MONO_TYPE_U4:
2224 case MONO_TYPE_I4:
2225 case MONO_TYPE_I8:
2226 case MONO_TYPE_U8:
2227 case MONO_TYPE_R4:
2228 case MONO_TYPE_R8: {
2229 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
2230 }
2231 case MONO_TYPE_STRING: {
2232 MonoString *str = (MonoString *) val;
2233 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
2234 }
2235 case MONO_TYPE_ARRAY:
2236 case MONO_TYPE_SZARRAY: {
2237 MonoArray *acopy;
2238 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
2239 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
2240 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
2241 if (mt == MONO_MARSHAL_COPY) {
2242 int i, len = mono_array_length (acopy);
2243 for (i = 0; i < len; i++) {
2244 MonoObject *item = mono_array_get (acopy, gpointer, i);
2245 mono_array_set (acopy, gpointer, i, mono_marshal_xdomain_copy_value (item));
2246 }
2247 }
2248 return (MonoObject *) acopy;
2249 }
2250 }
2251
2252 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
2253 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
2254 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
2255 newsb->str = mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str));
2256 newsb->length = oldsb->length;
2257 newsb->max_capacity = (gint32)0x7fffffff;
2258 return (MonoObject *) newsb;
2259 }
2260 return NULL;
2261 }
2262
2263 /* mono_marshal_xdomain_copy_out_value()
2264 * Copies the contents of the src instance into the dst instance. src and dst
2265 * must have the same type, and if they are arrays, the same size.
2266 */
2267 static void
2268 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
2269 {
2270 if (src == NULL || dst == NULL) return;
2271
2272 g_assert (mono_object_class (src) == mono_object_class (dst));
2273
2274 switch (mono_object_class (src)->byval_arg.type) {
2275 case MONO_TYPE_ARRAY:
2276 case MONO_TYPE_SZARRAY: {
2277 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
2278 if (mt == MONO_MARSHAL_SERIALIZE) return;
2279 if (mt == MONO_MARSHAL_COPY) {
2280 int i, len = mono_array_length ((MonoArray *)dst);
2281 for (i = 0; i < len; i++) {
2282 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
2283 mono_array_set ((MonoArray *)dst, gpointer, i, mono_marshal_xdomain_copy_value (item));
2284 }
2285 } else {
2286 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
2287 }
2288 return;
2289 }
2290 }
2291
2292 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
2293 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
2294 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
2295
2296 dst_sb->str = mono_string_new_utf16 (mono_object_domain (dst), mono_string_chars (src_sb->str), mono_string_length (src_sb->str));
2297 dst_sb->length = src_sb->length;
2298 }
2299 }
2300
2301 static void
2302 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
2303 {
2304 static MonoMethodSignature *csig = NULL;
2305 if (!csig) {
2306 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
2307 csig->params [0] = &mono_defaults.object_class->byval_arg;
2308 csig->ret = &mono_defaults.object_class->byval_arg;
2309 csig->pinvoke = 1;
2310 }
2311
2312 mono_mb_emit_native_call (mb, csig, mono_marshal_xdomain_copy_value);
2313 mono_mb_emit_byte (mb, CEE_CASTCLASS);
2314 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, pclass));
2315 }
2316
2317 static void
2318 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
2319 {
2320 static MonoMethodSignature *csig = NULL;
2321 if (!csig) {
2322 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2323 csig->params [0] = &mono_defaults.object_class->byval_arg;
2324 csig->params [1] = &mono_defaults.object_class->byval_arg;
2325 csig->ret = &mono_defaults.void_class->byval_arg;
2326 csig->pinvoke = 1;
2327 }
2328
2329 mono_mb_emit_native_call (mb, csig, mono_marshal_xdomain_copy_out_value);
2330 }
2331
2332 /* mono_marshal_supports_fast_xdomain()
2333 * Returns TRUE if the method can use the fast xdomain wrapper.
2334 */
2335 static gboolean
2336 mono_marshal_supports_fast_xdomain (MonoMethod *method)
2337 {
2338 return !method->klass->contextbound &&
2339 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
2340 }
2341
2342 static gint32
2343 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
2344 {
2345 MonoDomain *current_domain = mono_domain_get ();
2346 MonoDomain *domain = mono_domain_get_by_id (id);
2347
2348 if (!domain || !mono_domain_set (domain, FALSE))
2349 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
2350
2351 if (push)
2352 mono_thread_push_appdomain_ref (domain);
2353 else
2354 mono_thread_pop_appdomain_ref ();
2355
2356 return current_domain->domain_id;
2357 }
2358
2359 static void
2360 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
2361 {
2362 static MonoMethodSignature *csig = NULL;
2363 if (!csig) {
2364 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
2365 csig->params [0] = &mono_defaults.int32_class->byval_arg;
2366 csig->params [1] = &mono_defaults.int32_class->byval_arg;
2367 csig->ret = &mono_defaults.int32_class->byval_arg;
2368 csig->pinvoke = 1;
2369 }
2370
2371 mono_mb_emit_native_call (mb, csig, mono_marshal_set_domain_by_id);
2372 }
2373
2374 /* mono_marshal_emit_load_domain_method ()
2375 * Loads into the stack a pointer to the code of the provided method for
2376 * the current domain.
2377 */
2378 static void
2379 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
2380 {
2381 static MonoMethodSignature *csig = NULL;
2382 if (!csig) {
2383 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
2384 csig->params [0] = &mono_defaults.int_class->byval_arg;
2385 csig->ret = &mono_defaults.int_class->byval_arg;
2386 csig->pinvoke = 1;
2387 }
2388
2389 /* We need a pointer to the method for the running domain (not the domain
2390 * that compiles the method).
2391 */
2392 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2393 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
2394 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method));
2395 mono_mb_emit_native_call (mb, csig, mono_compile_method);
2396 }
2397
2398 /* mono_marshal_get_xappdomain_dispatch ()
2399 * Generates a method that dispatches a method call from another domain into
2400 * the current domain.
2401 */
2402 static MonoMethod *
2403 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
2404 {
2405 MonoMethodSignature *sig, *csig;
2406 MonoMethodBuilder *mb;
2407 MonoMethod *res;
2408 int i, j, param_index, copy_locals_base;
2409 MonoClass *ret_class = NULL;
2410 int loc_array=0, loc_return=0, loc_serialized_exc=0;
2411 MonoExceptionClause *main_clause;
2412 MonoMethodHeader *header;
2413 int pos, pos_leave;
2414 gboolean copy_return;
2415
2416 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
2417 return res;
2418
2419 sig = method->signature;
2420 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
2421
2422 j = 0;
2423 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
2424 csig->params [j++] = &mono_defaults.object_class->byval_arg;
2425 csig->params [j++] = &byte_array_class->this_arg;
2426 csig->params [j++] = &byte_array_class->this_arg;
2427 for (i = 0; i < sig->param_count; i++) {
2428 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
2429 csig->params [j++] = sig->params [i];
2430 }
2431 if (copy_return)
2432 csig->ret = sig->ret;
2433 else
2434 csig->ret = &mono_defaults.void_class->byval_arg;
2435 csig->pinvoke = 1;
2436 csig->hasthis = FALSE;
2437
2438 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
2439 mb->method->save_lmf = 1;
2440
2441 /* Locals */
2442
2443 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
2444 if (complex_count > 0)
2445 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2446 if (sig->ret->type != MONO_TYPE_VOID) {
2447 loc_return = mono_mb_add_local (mb, sig->ret);
2448 ret_class = mono_class_from_mono_type (sig->ret);
2449 }
2450
2451 /* try */
2452
2453 main_clause = g_new0 (MonoExceptionClause, 1);
2454 main_clause->try_offset = mb->pos;
2455
2456 /* Clean the call context */
2457
2458 mono_mb_emit_byte (mb, CEE_LDNULL);
2459 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
2460 mono_mb_emit_byte (mb, CEE_POP);
2461
2462 /* Deserialize call data */
2463
2464 mono_mb_emit_ldarg (mb, 1);
2465 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2466 mono_mb_emit_byte (mb, CEE_DUP);
2467 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
2468 pos = mb->pos;
2469 mono_mb_emit_byte (mb, 0);
2470
2471 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
2472 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
2473
2474 if (complex_count > 0)
2475 mono_mb_emit_stloc (mb, loc_array);
2476 else
2477 mono_mb_emit_byte (mb, CEE_POP);
2478
2479 mono_mb_patch_addr_s (mb, pos, mb->pos - (pos + 1));
2480
2481 /* Get the target object */
2482
2483 mono_mb_emit_ldarg (mb, 0);
2484 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
2485
2486 /* Load the arguments */
2487
2488 copy_locals_base = mb->locals;
2489 param_index = 3; // Index of the first non-serialized parameter of this wrapper
2490 j = 0;
2491 for (i = 0; i < sig->param_count; i++) {
2492 MonoType *pt = sig->params [i];
2493 MonoClass *pclass = mono_class_from_mono_type (pt);
2494 switch (marshal_types [i]) {
2495 case MONO_MARSHAL_SERIALIZE: {
2496 /* take the value from the serialized array */
2497 mono_mb_emit_ldloc (mb, loc_array);
2498 mono_mb_emit_icon (mb, j++);
2499 if (pt->byref) {
2500 if (pclass->valuetype) {
2501 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
2502 mono_mb_emit_byte (mb, CEE_UNBOX);
2503 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, pclass));
2504 } else {
2505 mono_mb_emit_byte (mb, CEE_LDELEMA);
2506 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, pclass));
2507 }
2508 } else {
2509 if (pclass->valuetype) {
2510 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
2511 mono_mb_emit_byte (mb, CEE_UNBOX);
2512 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, pclass));
2513 mono_mb_emit_byte (mb, CEE_LDOBJ);
2514 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, pclass));
2515 } else {
2516 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
2517 if (pclass != mono_defaults.object_class) {
2518 mono_mb_emit_byte (mb, CEE_CASTCLASS);
2519 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, pclass));
2520 }
2521 }
2522 }
2523 break;
2524 }
2525 case MONO_MARSHAL_COPY_OUT: {
2526 /* Keep a local copy of the value since we need to copy it back after the call */
2527 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
2528 mono_mb_emit_ldarg (mb, param_index++);
2529 mono_marshal_emit_xdomain_copy_value (mb, pclass);
2530 mono_mb_emit_byte (mb, CEE_DUP);
2531 mono_mb_emit_stloc (mb, copy_local);
2532 break;
2533 }
2534 case MONO_MARSHAL_COPY: {
2535 mono_mb_emit_ldarg (mb, param_index);
2536 if (pt->byref) {
2537 mono_mb_emit_byte (mb, CEE_DUP);
2538 mono_mb_emit_byte (mb, CEE_DUP);
2539 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2540 mono_marshal_emit_xdomain_copy_value (mb, pclass);
2541 mono_mb_emit_byte (mb, CEE_STIND_REF);
2542 } else {
2543 mono_marshal_emit_xdomain_copy_value (mb, pclass);
2544 }
2545 param_index++;
2546 break;
2547 }
2548 case MONO_MARSHAL_NONE:
2549 mono_mb_emit_ldarg (mb, param_index++);
2550 break;
2551 }
2552 }
2553
2554 /* Make the call to the real object */
2555
2556 emit_thread_force_interrupt_checkpoint (mb);
2557 mono_mb_emit_managed_call (mb, method, NULL);
2558
2559 if (sig->ret->type != MONO_TYPE_VOID)
2560 mono_mb_emit_stloc (mb, loc_return);
2561
2562 /* copy back MONO_MARSHAL_COPY_OUT parameters */
2563
2564 j = 0;
2565 param_index = 3;
2566 for (i = 0; i < sig->param_count; i++) {
2567 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
2568 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
2569 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
2570 mono_mb_emit_ldarg (mb, param_index);
2571 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
2572 }
2573 param_index++;
2574 }
2575
2576 /* Serialize the return values */
2577
2578 if (complex_out_count > 0) {
2579 /* Reset parameters in the array that don't need to be serialized back */
2580 j = 0;
2581 for (i = 0; i < sig->param_count; i++) {
2582 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
2583 if (!sig->params [i]->byref) {
2584 mono_mb_emit_ldloc (mb, loc_array);
2585 mono_mb_emit_icon (mb, j);
2586 mono_mb_emit_byte (mb, CEE_LDNULL);
2587 mono_mb_emit_byte (mb, CEE_STELEM_REF);
2588 }
2589 j++;
2590 }
2591
2592 /* Add the return value to the array */
2593
2594 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
2595 mono_mb_emit_ldloc (mb, loc_array);
2596 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
2597 mono_mb_emit_ldloc (mb, loc_return);
2598 if (ret_class->valuetype) {
2599 mono_mb_emit_byte (mb, CEE_BOX);
2600 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, ret_class));
2601 }
2602 mono_mb_emit_byte (mb, CEE_STELEM_REF);
2603 }
2604
2605 /* Serialize */
2606
2607 mono_mb_emit_ldarg (mb, 1);
2608 mono_mb_emit_ldloc (mb, loc_array);
2609 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
2610 mono_mb_emit_byte (mb, CEE_STIND_REF);
2611 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
2612 mono_mb_emit_ldarg (mb, 1);
2613 mono_mb_emit_ldloc (mb, loc_return);
2614 if (ret_class->valuetype) {
2615 mono_mb_emit_byte (mb, CEE_BOX);
2616 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, ret_class));
2617 }
2618 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
2619 mono_mb_emit_byte (mb, CEE_STIND_REF);
2620 } else {
2621 mono_mb_emit_ldarg (mb, 1);
2622 mono_mb_emit_byte (mb, CEE_LDNULL);
2623 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
2624 mono_mb_emit_byte (mb, CEE_STIND_REF);
2625 }
2626
2627 mono_mb_emit_ldarg (mb, 2);
2628 mono_mb_emit_byte (mb, CEE_LDNULL);
2629 mono_mb_emit_byte (mb, CEE_STIND_REF);
2630 mono_mb_emit_byte (mb, CEE_LEAVE);
2631 pos_leave = mb->pos;
2632 mono_mb_emit_i4 (mb, 0);
2633
2634 /* Main exception catch */
2635 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
2636 main_clause->try_len = mb->pos - main_clause->try_offset;
2637 main_clause->data.catch_class = mono_defaults.object_class;
2638
2639 /* handler code */
2640 main_clause->handler_offset = mb->pos;
2641 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
2642 mono_mb_emit_stloc (mb, loc_serialized_exc);
2643 mono_mb_emit_ldarg (mb, 2);
2644 mono_mb_emit_ldloc (mb, loc_serialized_exc);
2645 mono_mb_emit_byte (mb, CEE_STIND_REF);
2646 mono_mb_emit_byte (mb, CEE_LEAVE);
2647 mono_mb_emit_i4 (mb, 0);
2648 main_clause->handler_len = mb->pos - main_clause->handler_offset;
2649 /* end catch */
2650
2651 mono_mb_patch_addr (mb, pos_leave, mb->pos - (pos_leave + 4));
2652
2653 if (copy_return)
2654 mono_mb_emit_ldloc (mb, loc_return);
2655
2656 mono_mb_emit_byte (mb, CEE_RET);
2657
2658 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
2659 mono_mb_free (mb);
2660
2661 header = ((MonoMethodNormal *)res)->header;
2662 header->num_clauses = 1;
2663 header->clauses = main_clause;
2664
2665 return res;
2666 }
2667
2668 /* mono_marshal_get_xappdomain_invoke ()
2669 * Generates a fast remoting wrapper for cross app domain calls.
2670 */
2671 MonoMethod *
2672 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
2673 {
2674 MonoMethodSignature *sig;
2675 static MonoMethodSignature *sig_context_get;
2676 static MonoMethodSignature *sig_context_set;
2677 MonoMethodBuilder *mb;
2678 MonoMethod *res;
2679 int i, j, complex_count, complex_out_count, copy_locals_base;
2680 int *marshal_types;
2681 MonoClass *ret_class = NULL;
2682 MonoMethod *xdomain_method;
2683 int ret_marshal_type = MONO_MARSHAL_NONE;
2684 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
2685 int loc_old_domainid, loc_return=0, loc_serialized_exc=0, loc_context, loc_datastore;
2686 int pos, pos_noex;
2687 gboolean copy_return = FALSE;
2688
2689 g_assert (method);
2690
2691 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2692 return method;
2693
2694 /* we cant remote methods without this pointer */
2695 if (!method->signature->hasthis)
2696 return method;
2697
2698 if (!mono_marshal_supports_fast_xdomain (method))
2699 return mono_marshal_get_remoting_invoke (method);
2700
2701 mono_remoting_marshal_init ();
2702
2703 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
2704 return res;
2705
2706 sig = signature_no_pinvoke (method->signature);
2707
2708 if (sig_context_set == NULL) {
2709 sig_context_set = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
2710 sig_context_set->params [0] = &mono_defaults.object_class->byval_arg;
2711 sig_context_set->ret = &mono_defaults.void_class->byval_arg;
2712 sig_context_set->pinvoke = 1;
2713
2714 sig_context_get = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
2715 sig_context_get->ret = &mono_defaults.object_class->byval_arg;
2716 sig_context_get->pinvoke = 1;
2717 }
2718
2719 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
2720 mb->method->save_lmf = 1;
2721
2722 /* Count the number of parameters that need to be serialized */
2723
2724 marshal_types = alloca (sizeof (int) * sig->param_count);
2725 complex_count = complex_out_count = 0;
2726 for (i = 0; i < sig->param_count; i++) {
2727 MonoType *ptype = sig->params[i];
2728 int mt = mono_get_xdomain_marshal_type (ptype);
2729
2730 /* If the [Out] attribute is applied to a parameter that can be internally copied,
2731 * the copy will be made by reusing the original object instance
2732 */
2733 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
2734 mt = MONO_MARSHAL_COPY_OUT;
2735 else if (mt == MONO_MARSHAL_SERIALIZE) {
2736 complex_count++;
2737 if (ptype->byref) complex_out_count++;
2738 }
2739 marshal_types [i] = mt;
2740 }
2741
2742 if (sig->ret->type != MONO_TYPE_VOID) {
2743 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
2744 ret_class = mono_class_from_mono_type (sig->ret);
2745 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
2746 }
2747
2748 /* Locals */
2749
2750 if (complex_count > 0)
2751 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2752 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
2753 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2754 if (copy_return)
2755 loc_return = mono_mb_add_local (mb, sig->ret);
2756 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
2757 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
2758 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2759 loc_datastore = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2760
2761 /* Save thread domain data */
2762
2763 mono_mb_emit_native_call (mb, sig_context_get, mono_context_get);
2764 mono_mb_emit_byte (mb, CEE_DUP);
2765 mono_mb_emit_stloc (mb, loc_context);
2766
2767 /* If the thread is not running in the default context, it needs to go
2768 * through the whole remoting sink, since the context is going to change
2769 */
2770 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
2771 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
2772 pos = mb->pos;
2773 mono_mb_emit_byte (mb, 0);
2774
2775 mono_mb_emit_ldarg (mb, 0);
2776 for (i = 0; i < sig->param_count; i++)
2777 mono_mb_emit_ldarg (mb, i + 1);
2778
2779 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
2780 mono_mb_emit_byte (mb, CEE_RET);
2781 mono_mb_patch_addr_s (mb, pos, mb->pos - pos - 1);
2782
2783 mono_mb_emit_managed_call (mb, method_reset_datastore, NULL);
2784 mono_mb_emit_stloc (mb, loc_datastore);
2785
2786 /* Create the array that will hold the parameters to be serialized */
2787
2788 if (complex_count > 0) {
2789 mono_mb_emit_icon (mb, (ret_marshal_type == MONO_MARSHAL_SERIALIZE && complex_out_count > 0) ? complex_count + 1 : complex_count); /* +1 for the return type */
2790 mono_mb_emit_byte (mb, CEE_NEWARR);
2791 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.object_class));
2792
2793 j = 0;
2794 for (i = 0; i < sig->param_count; i++) {
2795 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
2796 MonoClass *pclass = mono_class_from_mono_type (sig->params[i]);
2797 mono_mb_emit_byte (mb, CEE_DUP);
2798 mono_mb_emit_icon (mb, j);
2799 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
2800 if (sig->params[i]->byref) {
2801 if (pclass->valuetype) {
2802 mono_mb_emit_byte (mb, CEE_LDOBJ);
2803 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, pclass));
2804 } else {
2805 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2806 }
2807 }
2808 if (pclass->valuetype) {
2809 mono_mb_emit_byte (mb, CEE_BOX);
2810 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, pclass));
2811 }
2812 mono_mb_emit_byte (mb, CEE_STELEM_REF);
2813 j++;
2814 }
2815 mono_mb_emit_stloc (mb, loc_array);
2816
2817 /* Serialize parameters */
2818
2819 mono_mb_emit_ldloc (mb, loc_array);
2820 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
2821 mono_mb_emit_stloc (mb, loc_serialized_data);
2822 } else {
2823 mono_mb_emit_byte (mb, CEE_LDNULL);
2824 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
2825 mono_mb_emit_stloc (mb, loc_serialized_data);
2826 }
2827
2828 /* Get the target domain id */
2829
2830 mono_mb_emit_ldarg (mb, 0);
2831 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
2832 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2833 mono_mb_emit_byte (mb, CEE_DUP);
2834 mono_mb_emit_stloc (mb, loc_real_proxy);
2835
2836 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
2837 mono_mb_emit_byte (mb, CEE_LDIND_I4);
2838 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
2839
2840 /* switch domain */
2841
2842 mono_marshal_emit_switch_domain (mb);
2843 mono_mb_emit_stloc (mb, loc_old_domainid);
2844
2845 /* Load the arguments */
2846
2847 mono_mb_emit_ldloc (mb, loc_real_proxy);
2848 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
2849 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
2850
2851 copy_locals_base = mb->locals;
2852 for (i = 0; i < sig->param_count; i++) {
2853 switch (marshal_types [i]) {
2854 case MONO_MARSHAL_SERIALIZE:
2855 continue;
2856 case MONO_MARSHAL_COPY: {
2857 mono_mb_emit_ldarg (mb, i+1);
2858 if (sig->params [i]->byref) {
2859 /* make a local copy of the byref parameter. The real parameter
2860 * will be updated after the xdomain call
2861 */
2862 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
2863 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
2864 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2865 mono_mb_emit_stloc (mb, copy_local);
2866 mono_mb_emit_ldloc_addr (mb, copy_local);
2867 }
2868 break;
2869 }
2870 case MONO_MARSHAL_COPY_OUT:
2871 case MONO_MARSHAL_NONE:
2872 mono_mb_emit_ldarg (mb, i+1);
2873 break;
2874 }
2875 }
2876
2877 /* Make the call to the invoke wrapper in the target domain */
2878
2879 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
2880 mono_marshal_emit_load_domain_method (mb, xdomain_method);
2881 mono_mb_emit_calli (mb, xdomain_method->signature);
2882
2883 if (copy_return)
2884 mono_mb_emit_stloc (mb, loc_return);
2885
2886 /* Switch domain */
2887
2888 mono_mb_emit_ldloc (mb, loc_old_domainid);
2889 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2890 mono_marshal_emit_switch_domain (mb);
2891 mono_mb_emit_byte (mb, CEE_POP);
2892
2893 /* Restore thread domain data */
2894
2895 mono_mb_emit_ldloc (mb, loc_context);
2896 mono_mb_emit_native_call (mb, sig_context_set, mono_context_set);
2897 mono_mb_emit_ldloc (mb, loc_datastore);
2898 mono_mb_emit_managed_call (mb, method_restore_datastore, NULL);
2899
2900 /* if (loc_serialized_exc != null) ... */
2901
2902 mono_mb_emit_ldloc (mb, loc_serialized_exc);
2903 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
2904 pos_noex = mb->pos;
2905 mono_mb_emit_byte (mb, 0);
2906
2907 mono_mb_emit_ldloc (mb, loc_serialized_exc);
2908 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
2909 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
2910 mono_mb_emit_byte (mb, CEE_CASTCLASS);
2911 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.exception_class));
2912 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
2913 mono_mb_emit_byte (mb, CEE_THROW);
2914 mono_mb_patch_addr_s (mb, pos_noex, mb->pos - pos_noex - 1);
2915
2916 /* copy back non-serialized output parameters */
2917
2918 j = 0;
2919 for (i = 0; i < sig->param_count; i++) {
2920 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
2921 mono_mb_emit_ldarg (mb, i + 1);
2922 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
2923 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
2924 mono_mb_emit_byte (mb, CEE_STIND_REF);
2925 }
2926
2927 /* Deserialize out parameters */
2928
2929 if (complex_out_count > 0) {
2930 mono_mb_emit_ldloc (mb, loc_serialized_data);
2931 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
2932 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
2933 mono_mb_emit_stloc (mb, loc_array);
2934
2935 /* Copy back output parameters and return type */
2936
2937 j = 0;
2938 for (i = 0; i < sig->param_count; i++) {
2939 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
2940 if (sig->params[i]->byref) {
2941 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
2942 mono_mb_emit_ldarg (mb, i + 1);
2943 mono_mb_emit_ldloc (mb, loc_array);
2944 mono_mb_emit_icon (mb, j);
2945 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
2946 if (pclass->valuetype) {
2947 mono_mb_emit_byte (mb, CEE_UNBOX);
2948 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, pclass));
2949 mono_mb_emit_byte (mb, CEE_LDOBJ);
2950 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, pclass));
2951 mono_mb_emit_byte (mb, CEE_STOBJ);
2952 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, pclass));
2953 } else {
2954 if (pclass != mono_defaults.object_class) {
2955 mono_mb_emit_byte (mb, CEE_CASTCLASS);
2956 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, pclass));
2957 }
2958 mono_mb_emit_byte (mb, CEE_STIND_REF);
2959 }
2960 }
2961 j++;
2962 }
2963
2964 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
2965 mono_mb_emit_ldloc (mb, loc_array);
2966 mono_mb_emit_icon (mb, complex_count);
2967 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
2968 if (ret_class->valuetype) {
2969 mono_mb_emit_byte (mb, CEE_UNBOX);
2970 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, ret_class));
2971 mono_mb_emit_byte (mb, CEE_LDOBJ);
2972 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, ret_class));
2973 }
2974 }
2975 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
2976 mono_mb_emit_ldloc (mb, loc_serialized_data);
2977 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
2978 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
2979 if (ret_class->valuetype) {
2980 mono_mb_emit_byte (mb, CEE_UNBOX);
2981 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, ret_class));
2982 mono_mb_emit_byte (mb, CEE_LDOBJ);
2983 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, ret_class));
2984 } else if (ret_class != mono_defaults.object_class) {
2985 mono_mb_emit_byte (mb, CEE_CASTCLASS);
2986 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, ret_class));
2987 }
2988 } else {
2989 mono_mb_emit_ldloc (mb, loc_serialized_data);
2990 mono_mb_emit_byte (mb, CEE_DUP);
2991 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
2992 pos = mb->pos;
2993 mono_mb_emit_byte (mb, 0);
2994 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
2995
2996 mono_mb_patch_addr_s (mb, pos, mb->pos - (pos + 1));
2997 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
2998 mono_mb_emit_byte (mb, CEE_POP);
2999 }
3000
3001 if (copy_return) {
3002 mono_mb_emit_ldloc (mb, loc_return);
3003 if (ret_marshal_type == MONO_MARSHAL_COPY)
3004 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3005 }
3006
3007 mono_mb_emit_byte (mb, CEE_RET);
3008
3009 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3010 mono_mb_free (mb);
3011
3012 return res;
3013 }
3014
3015 MonoMethod *
3016 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3017 {
3018 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN)
3019 return mono_marshal_get_xappdomain_invoke (method);
3020 else
3021 return mono_marshal_get_remoting_invoke (method);
3022 }
3023
3024 G_GNUC_UNUSED static gpointer
3025 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3026 {
3027 if (rp->target_domain_id != -1)
3028 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3029 else
3030 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3031 }
3032
3033 MonoMethod *
3034 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3035 {
3036 MonoMethodSignature *sig;
3037 MonoMethodBuilder *mb;
3038 MonoMethod *res, *native;
3039 int i, pos, pos_rem;
3040
3041 g_assert (method);
3042
3043 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3044 return method;
3045
3046 sig = signature_no_pinvoke (method->signature);
3047
3048 /* we cant remote methods without this pointer */
3049 g_assert (sig->hasthis);
3050
3051 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3052 return res;
3053
3054 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3055
3056 for (i = 0; i <= sig->param_count; i++)
3057 mono_mb_emit_ldarg (mb, i);
3058
3059 mono_mb_emit_ldarg (mb, 0);
3060 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3061
3062 if (mono_marshal_supports_fast_xdomain (method)) {
3063 mono_mb_emit_ldarg (mb, 0);
3064 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3065
3066 /* wrapper for cross app domain calls */
3067 native = mono_marshal_get_xappdomain_invoke (method);
3068 mono_mb_emit_managed_call (mb, native, native->signature);
3069 mono_mb_emit_byte (mb, CEE_RET);
3070
3071 mono_mb_patch_addr (mb, pos_rem, mb->pos - (pos_rem + 4));
3072 }
3073 /* wrapper for normal remote calls */
3074 native = mono_marshal_get_remoting_invoke (method);
3075 mono_mb_emit_managed_call (mb, native, native->signature);
3076 mono_mb_emit_byte (mb, CEE_RET);
3077
3078 /* not a proxy */
3079 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3080 mono_mb_emit_managed_call (mb, method, method->signature);
3081 mono_mb_emit_byte (mb, CEE_RET);
3082
3083 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3084 mono_mb_free (mb);
3085
3086 return res;
3087 }
3088
3089 /*
3090 * the returned method invokes all methods in a multicast delegate
3091 */
3092 MonoMethod *
3093 mono_marshal_get_delegate_invoke (MonoMethod *method)
3094 {
3095 MonoMethodSignature *sig, *static_sig;
3096 int i;
3097 MonoMethodBuilder *mb;
3098 MonoMethod *res;
3099 GHashTable *cache;
3100 int pos0, pos1;
3101 char *name;
3102
3103 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3104 !strcmp (method->name, "Invoke"));
3105
3106 sig = signature_no_pinvoke (method->signature);
3107
3108 cache = method->klass->image->delegate_invoke_cache;
3109 if ((res = mono_marshal_find_in_cache (cache, sig)))
3110 return res;
3111
3112 static_sig = mono_metadata_signature_dup (sig);
3113 static_sig->hasthis = 0;
3114
3115 name = mono_signature_to_name (sig, "invoke");
3116 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_INVOKE);
3117 g_free (name);
3118
3119 /* allocate local 0 (object) */
3120 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3121
3122 g_assert (sig->hasthis);
3123
3124 /*
3125 * if (prev != null)
3126 * prev.Invoke( args .. );
3127 * return this.<target>( args .. );
3128 */
3129
3130 /* this wrapper can be used in unmanaged-managed transitions */
3131 emit_thread_interrupt_checkpoint (mb);
3132
3133 /* get this->prev */
3134 mono_mb_emit_ldarg (mb, 0);
3135 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3136 mono_mb_emit_byte (mb, CEE_LDIND_I );
3137 mono_mb_emit_stloc (mb, 0);
3138
3139 /* if prev != null */
3140 mono_mb_emit_ldloc (mb, 0);
3141 mono_mb_emit_byte (mb, CEE_BRFALSE);
3142
3143 pos0 = mb->pos;
3144 mono_mb_emit_i4 (mb, 0);
3145
3146 /* then recurse */
3147 mono_mb_emit_ldloc (mb, 0);
3148 for (i = 0; i < sig->param_count; i++)
3149 mono_mb_emit_ldarg (mb, i + 1);
3150 mono_mb_emit_managed_call (mb, method, method->signature);
3151 if (sig->ret->type != MONO_TYPE_VOID)
3152 mono_mb_emit_byte (mb, CEE_POP);
3153
3154 /* continued or prev == null */
3155 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
3156
3157 /* get this->target */
3158 mono_mb_emit_ldarg (mb, 0);
3159 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
3160 mono_mb_emit_byte (mb, CEE_LDIND_I );
3161 mono_mb_emit_stloc (mb, 0);
3162
3163 /* if target != null */
3164 mono_mb_emit_ldloc (mb, 0);
3165 mono_mb_emit_byte (mb, CEE_BRFALSE);
3166 pos0 = mb->pos;
3167 mono_mb_emit_i4 (mb, 0);
3168
3169 /* then call this->method_ptr nonstatic */
3170 mono_mb_emit_ldloc (mb, 0);
3171 for (i = 0; i < sig->param_count; ++i)
3172 mono_mb_emit_ldarg (mb, i + 1);
3173 mono_mb_emit_ldarg (mb, 0);
3174 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3175 mono_mb_emit_byte (mb, CEE_LDIND_I );
3176 mono_mb_emit_byte (mb, CEE_CALLI);
3177 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, sig));
3178
3179 mono_mb_emit_byte (mb, CEE_BR);
3180 pos1 = mb->pos;
3181 mono_mb_emit_i4 (mb, 0);
3182
3183 /* else [target == null] call this->method_ptr static */
3184 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
3185
3186 for (i = 0; i < sig->param_count; ++i)
3187 mono_mb_emit_ldarg (mb, i + 1);
3188 mono_mb_emit_ldarg (mb, 0);
3189 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3190 mono_mb_emit_byte (mb, CEE_LDIND_I );
3191 mono_mb_emit_byte (mb, CEE_CALLI);
3192 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, static_sig));
3193
3194 /* return */
3195 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
3196 mono_mb_emit_byte (mb, CEE_RET);
3197
3198 res = mono_mb_create_and_cache (cache, sig,
3199 mb, sig, sig->param_count + 16);
3200 mono_mb_free (mb);
3201
3202 return res;
3203 }
3204
3205 /*
3206 * signature_dup_add_this:
3207 *
3208 * Make a copy of @sig, adding an explicit this argument.
3209 */
3210 static MonoMethodSignature*
3211 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
3212 {
3213 MonoMethodSignature *res;
3214 int i;
3215
3216 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
3217 memcpy (res, sig, sizeof (MonoMethodSignature));
3218 res->param_count = sig->param_count + 1;
3219 res->hasthis = FALSE;
3220 for (i = sig->param_count - 1; i >= 0; i --)
3221 res->params [i + 1] = sig->params [i];
3222 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
3223
3224 return res;
3225 }
3226
3227 typedef struct {
3228 MonoMethod *ctor;
3229 MonoMethodSignature *sig;
3230 } CtorSigPair;
3231
3232
3233
3234 /*
3235 * generates IL code for the runtime invoke function
3236 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
3237 *
3238 * we also catch exceptions if exc != null
3239 */
3240 MonoMethod *
3241 mono_marshal_get_runtime_invoke (MonoMethod *method)
3242 {
3243 MonoMethodSignature *sig, *csig, *callsig;
3244 MonoExceptionClause *clause;
3245 MonoMethodHeader *header;
3246 MonoMethodBuilder *mb;
3247 GHashTable *cache = NULL;
3248 MonoClass *target_klass;
3249 MonoMethod *res = NULL;
3250 GSList *item;
3251 static MonoString *string_dummy = NULL;
3252 static MonoMethodSignature *dealy_abort_sig = NULL;
3253 int i, pos, posna;
3254 char *name;
3255
3256 g_assert (method);
3257
3258 target_klass = method->klass;
3259
3260 EnterCriticalSection (&marshal_mutex);
3261
3262 if (method->string_ctor) {
3263 static GSList *strsig_list = NULL;
3264 CtorSigPair *cs;
3265
3266 callsig = NULL;
3267 for (item = strsig_list; item; item = item->next) {
3268 cs = item->data;
3269 if (mono_metadata_signature_equal (method->signature, cs->ctor->signature)) {
3270 callsig = cs->sig;
3271 break;
3272 }
3273 }
3274 if (!callsig) {
3275 callsig = mono_metadata_signature_dup (method->signature);
3276 callsig->ret = &mono_defaults.string_class->byval_arg;
3277 cs = g_new (CtorSigPair, 1);
3278 cs->sig = callsig;
3279 cs->ctor = method;
3280 strsig_list = g_slist_prepend (strsig_list, cs);
3281 }
3282 } else {
3283 if (method->klass->valuetype && method->signature->hasthis) {
3284 /*
3285 * Valuetype methods receive a managed pointer as the this argument.
3286 * Create a new signature to reflect this.
3287 */
3288 callsig = signature_dup_add_this (method->signature, method->klass);
3289 }
3290 else
3291 callsig = method->signature;
3292 }
3293
3294 cache = method->klass->image->runtime_invoke_cache;
3295
3296 /* from mono_marshal_find_in_cache */
3297 res = g_hash_table_lookup (cache, callsig);
3298 LeaveCriticalSection (&marshal_mutex);
3299
3300 if (res) {
3301 return res;
3302 }
3303
3304 if (!dealy_abort_sig) {
3305 dealy_abort_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3306 dealy_abort_sig->ret = &mono_defaults.void_class->byval_arg;
3307 dealy_abort_sig->pinvoke = 0;
3308 }
3309
3310 target_klass = mono_defaults.object_class;
3311
3312 /* to make it work with our special string constructors */
3313 if (!string_dummy) {
3314 MONO_GC_REGISTER_ROOT (string_dummy);
3315 string_dummy = mono_string_new_wrapper ("dummy");
3316 }
3317
3318 sig = method->signature;
3319
3320 csig = mono_metadata_signature_alloc (method->klass->image, 4);
3321
3322 csig->ret = &mono_defaults.object_class->byval_arg;
3323 if (method->klass->valuetype && method->signature->hasthis)
3324 csig->params [0] = callsig->params [0];
3325 else
3326 csig->params [0] = &mono_defaults.object_class->byval_arg;
3327 csig->params [1] = &mono_defaults.int_class->byval_arg;
3328 csig->params [2] = &mono_defaults.int_class->byval_arg;
3329 csig->params [3] = &mono_defaults.int_class->byval_arg;
3330
3331 name = mono_signature_to_name (callsig, "runtime_invoke");
3332 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3333 g_free (name);
3334
3335 /* allocate local 0 (object) tmp */
3336 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3337 /* allocate local 1 (object) exc */
3338 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3339
3340 /* cond set *exc to null */
3341 mono_mb_emit_byte (mb, CEE_LDARG_2);
3342 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
3343 mono_mb_emit_byte (mb, 3);
3344 mono_mb_emit_byte (mb, CEE_LDARG_2);
3345 mono_mb_emit_byte (mb, CEE_LDNULL);
3346 mono_mb_emit_byte (mb, CEE_STIND_I);
3347
3348 if (sig->hasthis) {
3349 if (method->string_ctor) {
3350 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3351 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
3352 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, string_dummy));
3353 } else {
3354 mono_mb_emit_ldarg (mb, 0);
3355 }
3356 }
3357
3358 for (i = 0; i < sig->param_count; i++) {
3359 MonoType *t = sig->params [i];
3360 int type;
3361
3362 mono_mb_emit_ldarg (mb, 1);
3363 if (i) {
3364 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3365 mono_mb_emit_byte (mb, CEE_ADD);
3366 }
3367 mono_mb_emit_byte (mb, CEE_LDIND_I);
3368
3369 if (t->byref)
3370 continue;
3371
3372 type = sig->params [i]->type;
3373 handle_enum:
3374 switch (type) {
3375 case MONO_TYPE_I1:
3376 mono_mb_emit_byte (mb, CEE_LDIND_I1);
3377 break;
3378 case MONO_TYPE_BOOLEAN:
3379 case MONO_TYPE_U1:
3380 mono_mb_emit_byte (mb, CEE_LDIND_U1);
3381 break;
3382 case MONO_TYPE_I2:
3383 mono_mb_emit_byte (mb, CEE_LDIND_I2);
3384 break;
3385 case MONO_TYPE_U2:
3386 case MONO_TYPE_CHAR:
3387 mono_mb_emit_byte (mb, CEE_LDIND_U2);
3388 break;
3389 case MONO_TYPE_I:
3390 case MONO_TYPE_U:
3391 mono_mb_emit_byte (mb, CEE_LDIND_I);
3392 break;
3393 case MONO_TYPE_I4:
3394 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3395 break;
3396 case MONO_TYPE_U4:
3397 mono_mb_emit_byte (mb, CEE_LDIND_U4);
3398 break;
3399 case MONO_TYPE_R4:
3400 mono_mb_emit_byte (mb, CEE_LDIND_R4);
3401 break;
3402 case MONO_TYPE_R8:
3403 mono_mb_emit_byte (mb, CEE_LDIND_R8);
3404 break;
3405 case MONO_TYPE_I8:
3406 case MONO_TYPE_U8:
3407 mono_mb_emit_byte (mb, CEE_LDIND_I8);
3408 break;
3409 case MONO_TYPE_STRING:
3410 case MONO_TYPE_CLASS:
3411 case MONO_TYPE_ARRAY:
3412 case MONO_TYPE_PTR:
3413 case MONO_TYPE_SZARRAY:
3414 case MONO_TYPE_OBJECT:
3415 /* do nothing */
3416 break;
3417 case MONO_TYPE_VALUETYPE:
3418 if (t->data.klass->enumtype) {
3419 type = t->data.klass->enum_basetype->type;
3420 goto handle_enum;
3421 }
3422 mono_mb_emit_byte (mb, CEE_LDOBJ);
3423 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, t->data.klass));
3424 break;
3425 default:
3426 g_assert_not_reached ();
3427 }
3428 }
3429
3430 mono_mb_emit_ldarg (mb, 3);
3431 emit_thread_force_interrupt_checkpoint (mb);
3432 mono_mb_emit_calli (mb, callsig);
3433
3434 if (sig->ret->byref) {
3435 /* fixme: */
3436 g_assert_not_reached ();
3437 }
3438
3439
3440 switch (sig->ret->type) {
3441 case MONO_TYPE_VOID:
3442 if (!method->string_ctor)
3443 mono_mb_emit_byte (mb, CEE_LDNULL);
3444 break;
3445 case MONO_TYPE_BOOLEAN:
3446 case MONO_TYPE_CHAR:
3447 case MONO_TYPE_I1:
3448 case MONO_TYPE_U1:
3449 case MONO_TYPE_I2:
3450 case MONO_TYPE_U2:
3451 case MONO_TYPE_I4:
3452 case MONO_TYPE_U4:
3453 case MONO_TYPE_I:
3454 case MONO_TYPE_U:
3455 case MONO_TYPE_R4:
3456 case MONO_TYPE_R8:
3457 case MONO_TYPE_I8:
3458 case MONO_TYPE_U8:
3459 case MONO_TYPE_VALUETYPE:
3460 /* box value types */
3461 mono_mb_emit_byte (mb, CEE_BOX);
3462 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (sig->ret)));
3463 break;
3464 case MONO_TYPE_STRING:
3465 case MONO_TYPE_CLASS:
3466 case MONO_TYPE_ARRAY:
3467 case MONO_TYPE_SZARRAY:
3468 case MONO_TYPE_OBJECT:
3469 /* nothing to do */
3470 break;
3471 case MONO_TYPE_PTR:
3472 default:
3473 g_assert_not_reached ();
3474 }
3475
3476 mono_mb_emit_stloc (mb, 0);
3477
3478 mono_mb_emit_byte (mb, CEE_LEAVE);
3479 pos = mb->pos;
3480 mono_mb_emit_i4 (mb, 0);
3481
3482 clause = g_new0 (MonoExceptionClause, 1);
3483 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
3484 clause->try_len = mb->pos;
3485
3486 /* filter code */
3487 clause->data.filter_offset = mb->pos;
3488
3489 mono_mb_emit_byte (mb, CEE_POP);
3490 mono_mb_emit_byte (mb, CEE_LDARG_2);
3491 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3492 mono_mb_emit_byte (mb, CEE_PREFIX1);
3493 mono_mb_emit_byte (mb, CEE_CGT_UN);
3494 mono_mb_emit_byte (mb, CEE_PREFIX1);
3495 mono_mb_emit_byte (mb, CEE_ENDFILTER);
3496
3497 clause->handler_offset = mb->pos;
3498
3499 /* handler code */
3500 /* store exception */
3501 mono_mb_emit_stloc (mb, 1);
3502
3503 mono_mb_emit_byte (mb, CEE_LDARG_2);
3504 mono_mb_emit_ldloc (mb, 1);
3505 mono_mb_emit_byte (mb, CEE_STIND_I);
3506
3507 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3508 mono_mb_emit_stloc (mb, 0);
3509
3510 /* Check for the abort exception */
3511 mono_mb_emit_ldloc (mb, 1);
3512 mono_mb_emit_byte (mb, CEE_ISINST);
3513 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.threadabortexception_class));
3514 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
3515 posna = mb->pos;
3516 mono_mb_emit_byte (mb, 0);
3517
3518 /* Delay the abort exception */
3519 mono_mb_emit_native_call (mb, dealy_abort_sig, ves_icall_System_Threading_Thread_ResetAbort);
3520
3521 mono_mb_patch_addr_s (mb, posna, mb->pos - posna - 1);
3522 mono_mb_emit_byte (mb, CEE_LEAVE);
3523 mono_mb_emit_i4 (mb, 0);
3524
3525 clause->handler_len = mb->pos - clause->handler_offset;
3526
3527 /* return result */
3528 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3529 mono_mb_emit_ldloc (mb, 0);
3530 mono_mb_emit_byte (mb, CEE_RET);
3531
3532 /* taken from mono_mb_create_and_cache */
3533 EnterCriticalSection (&marshal_mutex);
3534
3535 res = g_hash_table_lookup (cache, callsig);
3536 /* Somebody may have created it before us */
3537 if (!res) {
3538 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
3539 g_hash_table_insert (cache, callsig, res);
3540 g_hash_table_insert (wrapper_hash, res, callsig);
3541 }
3542
3543 LeaveCriticalSection (&marshal_mutex);
3544 /* end mono_mb_create_and_cache */
3545
3546 mono_mb_free (mb);
3547
3548 header = ((MonoMethodNormal *)res)->header;
3549 header->num_clauses = 1;
3550 header->clauses = clause;
3551
3552 return res;
3553 }
3554
3555 static void
3556 raise_auto_layout_exception (MonoClass *klass)
3557 {
3558 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
3559 klass->name_space, klass->name);
3560
3561 MonoException *e = mono_exception_from_name_msg (
3562 mono_get_corlib (), "System.Runtime.InteropServices",
3563 "MarshalDirectiveException", msg);
3564 g_free (msg);
3565 mono_raise_exception (e);
3566 }
3567
3568 /*
3569 * generates IL code to call managed methods from unmanaged code
3570 */
3571 MonoMethod *
3572 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoObject *this, MonoMarshalSpec **mspecs)
3573 {
3574 MonoMethodSignature *sig, *csig;
3575 MonoMethodBuilder *mb;
3576 MonoClass *klass = NULL;
3577 MonoMethod *res;
3578 GHashTable *cache;
3579 int i, pos = 0, *tmp_locals;
3580 static MonoMethodSignature *alloc_sig = NULL;
3581 int retobj_var = 0;
3582
3583 g_assert (method != NULL);
3584 g_assert (!method->signature->pinvoke);
3585
3586 cache = method->klass->image->managed_wrapper_cache;
3587 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
3588 return res;
3589
3590 /* Under MS, the allocation should be done using CoTaskMemAlloc */
3591 if (!alloc_sig) {
3592 alloc_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
3593 alloc_sig->params [0] = &mono_defaults.int_class->byval_arg;
3594 alloc_sig->ret = &mono_defaults.int_class->byval_arg;
3595 alloc_sig->pinvoke = 1;
3596 }
3597
3598 sig = method->signature;
3599
3600 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
3601
3602 /* allocate local 0 (pointer) src_ptr */
3603 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3604 /* allocate local 1 (pointer) dst_ptr */
3605 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3606 /* allocate local 2 (boolean) delete_old */
3607 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
3608
3609 if (!MONO_TYPE_IS_VOID(sig->ret)) {
3610 /* allocate local 3 to store the return value */
3611 mono_mb_add_local (mb, sig->ret);
3612 }
3613
3614 mono_mb_emit_icon (mb, 0);
3615 mono_mb_emit_byte (mb, CEE_STLOC_2);
3616
3617 /* we copy the signature, so that we can modify it */
3618 csig = mono_metadata_signature_dup (sig);
3619 csig->hasthis = 0;
3620 csig->pinvoke = 1;
3621
3622 #ifdef PLATFORM_WIN32
3623 /*
3624 * Under windows, delegates passed to native code must use the STDCALL
3625 * calling convention.
3626 */
3627 csig->call_convention = MONO_CALL_STDCALL;
3628 #endif
3629
3630 /* fixme: howto handle this ? */
3631 if (sig->hasthis) {
3632
3633 if (this) {
3634 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3635 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
3636 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, this));
3637
3638
3639 } else {
3640 /* fixme: */
3641 g_assert_not_reached ();
3642 }
3643 }
3644
3645
3646 /* we first do all conversions */
3647 tmp_locals = alloca (sizeof (int) * sig->param_count);
3648 for (i = 0; i < sig->param_count; i ++) {
3649 MonoType *t = sig->params [i];
3650 MonoMarshalSpec *spec = mspecs [i + 1];
3651
3652 tmp_locals [i] = 0;
3653
3654 /* Ensure that we have marshalling info for this param */
3655 mono_marshal_load_type_info (mono_class_from_mono_type (t));
3656
3657 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
3658 MonoType *mtype;
3659 MonoClass *mklass;
3660 MonoMethod *marshal_native_to_managed;
3661 MonoMethod *get_instance;
3662
3663 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3664 g_assert (mtype != NULL);
3665 mklass = mono_class_from_mono_type (mtype);
3666 g_assert (mklass != NULL);
3667
3668 marshal_native_to_managed = mono_class_get_method_from_name (mklass, "MarshalNativeToManaged", 1);
3669 g_assert (marshal_native_to_managed);
3670 get_instance = mono_class_get_method_from_name (mklass, "GetInstance", 1);
3671 g_assert (get_instance);
3672
3673 switch (t->type) {
3674 case MONO_TYPE_CLASS:
3675 case MONO_TYPE_OBJECT:
3676 case MONO_TYPE_STRING:
3677 case MONO_TYPE_ARRAY:
3678 case MONO_TYPE_SZARRAY:
3679 if (t->byref)
3680 break;
3681
3682 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3683
3684 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
3685
3686 mono_mb_emit_byte (mb, CEE_CALL);
3687 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
3688
3689 mono_mb_emit_ldarg (mb, i);
3690
3691 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3692 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
3693
3694 mono_mb_emit_stloc (mb, tmp_locals [i]);
3695 break;
3696 default:
3697 g_warning ("custom marshalling of type %x is currently not supported", t->type);
3698 g_assert_not_reached ();
3699 break;
3700 }
3701 continue;
3702 }
3703
3704 switch (t->type) {
3705 case MONO_TYPE_CLASS: {
3706 klass = t->data.klass;
3707
3708 tmp_locals [i] = mono_mb_add_local (mb, &klass->byval_arg);
3709
3710 if (klass->delegate) {
3711 g_assert (!t->byref);
3712 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3713 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
3714 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3715 mono_mb_emit_ldarg (mb, i);
3716 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
3717 mono_mb_emit_stloc (mb, tmp_locals [i]);
3718 break;
3719 }
3720
3721 /* The class can not have an automatic layout */
3722 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
3723 raise_auto_layout_exception (klass);
3724
3725 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
3726 mono_mb_emit_byte (mb, CEE_LDNULL);
3727 mono_mb_emit_stloc (mb, tmp_locals [i]);
3728 break;
3729 }
3730
3731 /* Set src */
3732 mono_mb_emit_ldarg (mb, i);
3733 if (t->byref) {
3734 int pos2;
3735
3736 /* Check for NULL and raise an exception */
3737 mono_mb_emit_byte (mb, CEE_BRTRUE);
3738 pos2 = mb->pos;
3739 mono_mb_emit_i4 (mb, 0);
3740
3741 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
3742
3743 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
3744 mono_mb_emit_ldarg (mb, i);
3745 mono_mb_emit_byte (mb, CEE_LDIND_I);
3746 }
3747
3748 mono_mb_emit_byte (mb, CEE_STLOC_0);
3749
3750 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3751 mono_mb_emit_stloc (mb, tmp_locals [i]);
3752
3753 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3754 mono_mb_emit_byte (mb, CEE_BRFALSE);
3755 pos = mb->pos;
3756 mono_mb_emit_i4 (mb, 0);
3757
3758 /* Create and set dst */
3759 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3760 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
3761 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
3762 mono_mb_emit_stloc (mb, tmp_locals [i]);
3763 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3764 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3765 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
3766 mono_mb_emit_icon (mb, sizeof (MonoObject));
3767 mono_mb_emit_byte (mb, CEE_ADD);
3768 mono_mb_emit_byte (mb, CEE_STLOC_1);
3769
3770 /* emit valuetype conversion code */
3771 emit_struct_conv (mb, klass, TRUE);
3772
3773 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3774 break;
3775 }
3776 case MONO_TYPE_VALUETYPE:
3777
3778 klass = sig->params [i]->data.klass;
3779 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3780 klass->blittable || klass->enumtype)
3781 break;
3782
3783 tmp_locals [i] = mono_mb_add_local (mb, &klass->byval_arg);
3784
3785 if (t->attrs & PARAM_ATTRIBUTE_OUT)
3786 break;
3787
3788 if (t->byref)
3789 mono_mb_emit_ldarg (mb, i);
3790 else
3791 mono_mb_emit_ldarg_addr (mb, i);
3792 mono_mb_emit_byte (mb, CEE_STLOC_0);
3793
3794 if (t->byref) {
3795 mono_mb_emit_byte (mb, CEE_LDLOC_0);
3796 mono_mb_emit_byte (mb, CEE_BRFALSE);
3797 pos = mb->pos;
3798 mono_mb_emit_i4 (mb, 0);
3799 }
3800
3801 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
3802 mono_mb_emit_byte (mb, CEE_STLOC_1);
3803
3804 /* emit valuetype conversion code */
3805 emit_struct_conv (mb, klass, TRUE);
3806
3807 if (t->byref)
3808 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
3809 break;
3810 case MONO_TYPE_STRING: {
3811 MonoMarshalNative encoding = mono_marshal_get_string_encoding (NULL, spec);
3812
3813 if (t->byref)
3814 continue;
3815
3816 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3817 csig->params [i] = &mono_defaults.int_class->byval_arg;
3818
3819 mono_mb_emit_ldarg (mb, i);
3820
3821 switch (encoding) {
3822 case MONO_NATIVE_LPWSTR:
3823 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPWSTR_STR));
3824 break;
3825 case MONO_NATIVE_LPSTR:
3826 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
3827 break;
3828 default: {
3829 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
3830 MonoException *exc = mono_get_exception_not_implemented (msg);
3831 g_warning (msg);
3832 g_free (msg);
3833 mono_raise_exception (exc);
3834 }
3835 }
3836
3837 mono_mb_emit_stloc (mb, tmp_locals [i]);
3838 break;
3839 }
3840 case MONO_TYPE_ARRAY:
3841 case MONO_TYPE_SZARRAY:
3842 if (t->byref)
3843 continue;
3844
3845 klass = mono_class_from_mono_type (t);
3846
3847 tmp_locals [i] = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3848 csig->params [i] = &mono_defaults.int_class->byval_arg;
3849
3850 g_warning ("array marshaling not implemented");
3851 g_assert_not_reached ();
3852 break;
3853 }
3854 }
3855
3856 for (i = 0; i < sig->param_count; i++) {
3857 MonoType *t = sig->params [i];
3858
3859 switch (t->type) {
3860 case MONO_TYPE_BOOLEAN:
3861 case MONO_TYPE_I1:
3862 case MONO_TYPE_U1:
3863 case MONO_TYPE_I2:
3864 case MONO_TYPE_U2:
3865 case MONO_TYPE_I4:
3866 case MONO_TYPE_U4:
3867 case MONO_TYPE_I:
3868 case MONO_TYPE_U:
3869 case MONO_TYPE_PTR:
3870 case MONO_TYPE_R4:
3871 case MONO_TYPE_R8:
3872 case MONO_TYPE_I8:
3873 case MONO_TYPE_U8:
3874 mono_mb_emit_ldarg (mb, i);
3875 break;
3876 case MONO_TYPE_STRING:
3877 if (t->byref) {
3878 mono_mb_emit_ldarg (mb, i);
3879 } else {
3880 g_assert (tmp_locals [i]);
3881 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3882 }
3883 break;
3884 case MONO_TYPE_CLASS:
3885 if (t->byref)
3886 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
3887 else
3888 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3889 break;
3890 case MONO_TYPE_ARRAY:
3891 case MONO_TYPE_SZARRAY:
3892 case MONO_TYPE_OBJECT:
3893 if (tmp_locals [i])
3894 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3895 else
3896 mono_mb_emit_ldarg (mb, i);
3897 break;
3898 case MONO_TYPE_VALUETYPE:
3899 klass = sig->params [i]->data.klass;
3900 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
3901 klass->blittable || klass->enumtype) {
3902 mono_mb_emit_ldarg (mb, i);
3903 break;
3904 }
3905
3906 g_assert (tmp_locals [i]);
3907 if (t->byref)
3908 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
3909 else
3910 mono_mb_emit_ldloc (mb, tmp_locals [i]);
3911 break;
3912 default:
3913 g_warning ("type 0x%02x unknown", t->type);
3914 g_assert_not_reached ();
3915 }
3916 }
3917
3918 emit_thread_interrupt_checkpoint (mb);
3919 mono_mb_emit_managed_call (mb, method, NULL);
3920
3921 /* Ensure that we have marshalling info for the return */
3922 mono_marshal_load_type_info (mono_class_from_mono_type (sig->ret));
3923
3924 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
3925 MonoMarshalSpec *spec = mspecs [0];
3926 MonoType *mtype;
3927 MonoClass *mklass;
3928 guint32 loc1;
3929
3930 g_assert (!sig->ret->byref);
3931
3932 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
3933 g_assert (mtype);
3934 mklass = mono_class_from_mono_type (mtype);
3935 g_assert (mklass);
3936
3937 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3938
3939 switch (sig->ret->type) {
3940 case MONO_TYPE_CLASS:
3941 case MONO_TYPE_OBJECT:
3942 case MONO_TYPE_STRING:
3943 case MONO_TYPE_ARRAY:
3944 case MONO_TYPE_SZARRAY:
3945 mono_mb_emit_byte (mb, CEE_STLOC_3);
3946
3947 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3948 mono_mb_emit_stloc (mb, loc1);
3949
3950 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
3951 mono_mb_emit_byte (mb, CEE_CALL);
3952 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_get_method_from_name (mklass, "GetInstance", 1)));
3953 mono_mb_emit_byte (mb, CEE_DUP);
3954
3955 mono_mb_emit_byte (mb, CEE_LDLOC_3);
3956 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3957 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_get_method_from_name (mklass, "MarshalManagedToNative", 1)));
3958 mono_mb_emit_byte (mb, CEE_STLOC_3);
3959
3960 mono_mb_emit_ldloc (mb, loc1);
3961 mono_mb_emit_byte (mb, CEE_CALLVIRT);
3962 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_get_method_from_name (mklass, "CleanUpManagedData", 1)));
3963
3964 break;
3965 default:
3966 g_warning ("custom marshalling of type %x is currently not supported", sig->ret->type);
3967 g_assert_not_reached ();
3968 break;
3969 }
3970 }
3971 else
3972 if (!sig->ret->byref) {
3973 switch (sig->ret->type) {
3974 case MONO_TYPE_VOID:
3975 break;
3976 case MONO_TYPE_BOOLEAN:
3977 case MONO_TYPE_I1:
3978 case MONO_TYPE_U1:
3979 case MONO_TYPE_I2:
3980 case MONO_TYPE_U2:
3981 case MONO_TYPE_I4:
3982 case MONO_TYPE_U4:
3983 case MONO_TYPE_I:
3984 case MONO_TYPE_U:
3985 case MONO_TYPE_PTR:
3986 case MONO_TYPE_R4:
3987 case MONO_TYPE_R8:
3988 case MONO_TYPE_I8:
3989 case MONO_TYPE_U8:
3990 case MONO_TYPE_OBJECT:
3991 mono_mb_emit_byte (mb, CEE_STLOC_3);
3992 break;
3993 case MONO_TYPE_STRING:
3994 csig->ret = &mono_defaults.int_class->byval_arg;
3995
3996 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_STR_LPSTR));
3997 mono_mb_emit_byte (mb, CEE_STLOC_3);
3998 break;
3999 case MONO_TYPE_VALUETYPE:
4000 klass = sig->ret->data.klass;
4001 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4002 klass->blittable || klass->enumtype) {
4003 mono_mb_emit_byte (mb, CEE_STLOC_3);
4004 break;
4005 }
4006
4007 /* load pointer to returned value type */
4008 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4009 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4010
4011 /* store the address of the source into local variable 0 */
4012 mono_mb_emit_byte (mb, CEE_STLOC_0);
4013 /* allocate space for the native struct and
4014 * store the address into dst_ptr */
4015 retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4016 g_assert (retobj_var);
4017 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4018 mono_mb_emit_byte (mb, CEE_CONV_I);
4019 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
4020 emit_thread_interrupt_checkpoint (mb);
4021 mono_mb_emit_byte (mb, CEE_STLOC_1);
4022 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4023 mono_mb_emit_stloc (mb, retobj_var);
4024
4025 /* emit valuetype conversion code */
4026 emit_struct_conv (mb, klass, FALSE);
4027 break;
4028 case MONO_TYPE_CLASS: {
4029 int pos2;
4030
4031 klass = sig->ret->data.klass;
4032
4033 if (klass->delegate) {
4034 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
4035 mono_mb_emit_byte (mb, CEE_STLOC_3);
4036 break;
4037 }
4038
4039 /* The class can not have an automatic layout */
4040 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
4041 raise_auto_layout_exception (klass);
4042
4043 mono_mb_emit_byte (mb, CEE_STLOC_0);
4044 /* Check for null */
4045 mono_mb_emit_byte (mb, CEE_LDLOC_0);
4046 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
4047 mono_mb_emit_byte (mb, CEE_LDNULL);
4048 mono_mb_emit_byte (mb, CEE_STLOC_3);
4049 pos2 = mono_mb_emit_branch (mb, CEE_BR);
4050
4051 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4052
4053 /* Set src */
4054 mono_mb_emit_byte (mb, CEE_LDLOC_0);
4055 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4056 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4057 mono_mb_emit_icon (mb, sizeof (MonoObject));
4058 mono_mb_emit_byte (mb, CEE_ADD);
4059 mono_mb_emit_byte (mb, CEE_STLOC_0);
4060
4061 /* Allocate and set dest */
4062 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4063 mono_mb_emit_byte (mb, CEE_CONV_I);
4064 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
4065 emit_thread_interrupt_checkpoint (mb);
4066 mono_mb_emit_byte (mb, CEE_DUP);
4067 mono_mb_emit_byte (mb, CEE_STLOC_1);
4068 mono_mb_emit_byte (mb, CEE_STLOC_3);
4069
4070 emit_struct_conv (mb, klass, FALSE);
4071
4072 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
4073 break;
4074 }
4075 default:
4076 g_warning ("return type 0x%02x unknown", sig->ret->type);
4077 g_assert_not_reached ();
4078 }
4079 } else {
4080 mono_mb_emit_byte (mb, CEE_STLOC_3);
4081 }
4082
4083 /* Convert byref arguments back */
4084 for (i = 0; i < sig->param_count; i ++) {
4085 MonoType *t = sig->params [i];
4086 MonoMarshalSpec *spec = mspecs [i + 1];
4087
4088 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
4089 MonoType *mtype;
4090 MonoClass *mklass;
4091 MonoMethod *cleanup_managed;
4092 MonoMethod *get_instance;
4093
4094 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, method->klass->image);
4095 g_assert (mtype != NULL);
4096 mklass = mono_class_from_mono_type (mtype);
4097 g_assert (mklass != NULL);
4098
4099 get_instance = mono_class_get_method_from_name (mklass, "GetInstance", 1);
4100 g_assert (get_instance);
4101 cleanup_managed = mono_class_get_method_from_name (mklass, "CleanUpManagedData", 1);
4102 g_assert (cleanup_managed);
4103
4104 switch (t->type) {
4105 case MONO_TYPE_CLASS:
4106 case MONO_TYPE_OBJECT:
4107 case MONO_TYPE_STRING:
4108 case MONO_TYPE_ARRAY:
4109 case MONO_TYPE_SZARRAY:
4110 if (t->byref)
4111 g_assert_not_reached ();
4112
4113 /* Call CleanUpManagedData */
4114
4115 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4116
4117 mono_mb_emit_byte (mb, CEE_CALL);
4118 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
4119
4120 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4121 mono_mb_emit_byte (mb, CEE_CALLVIRT);
4122 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, cleanup_managed));
4123
4124 break;
4125 default:
4126 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4127 g_assert_not_reached ();
4128 break;
4129 }
4130 continue;
4131 }
4132
4133 if (!t->byref)
4134 continue;
4135
4136 switch (t->type) {
4137 case MONO_TYPE_CLASS: {
4138 int pos2;
4139
4140 klass = t->data.klass;
4141
4142 /* Check for null */
4143 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4144 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
4145 mono_mb_emit_ldarg (mb, i);
4146 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4147 mono_mb_emit_byte (mb, CEE_STIND_I);
4148 pos2 = mono_mb_emit_branch (mb, CEE_BR);
4149
4150 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4151
4152 /* Set src */
4153 mono_mb_emit_ldloc (mb, tmp_locals [i]);
4154 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4155 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4156 mono_mb_emit_icon (mb, sizeof (MonoObject));
4157 mono_mb_emit_byte (mb, CEE_ADD);
4158 mono_mb_emit_byte (mb, CEE_STLOC_0);
4159
4160 /* Allocate and set dest */
4161 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4162 mono_mb_emit_byte (mb, CEE_CONV_I);
4163 mono_mb_emit_native_call (mb, alloc_sig, mono_marshal_alloc);
4164 emit_thread_interrupt_checkpoint (mb);
4165 mono_mb_emit_byte (mb, CEE_STLOC_1);
4166
4167 /* Update argument pointer */
4168 mono_mb_emit_ldarg (mb, i);
4169 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4170 mono_mb_emit_byte (mb, CEE_STIND_I);
4171
4172 /* emit valuetype conversion code */
4173 emit_struct_conv (mb, klass, FALSE);
4174
4175 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
4176 break;
4177 }
4178 case MONO_TYPE_VALUETYPE: {
4179 int pos2;
4180
4181 klass = t->data.klass;
4182
4183 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4184 klass->blittable || klass->enumtype) {
4185 break;
4186 }
4187
4188 /* Check for null */
4189 mono_mb_emit_ldarg (mb, i);
4190 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4191
4192 /* Set src */
4193 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
4194 mono_mb_emit_byte (mb, CEE_STLOC_0);
4195
4196 /* Set dest */
4197 mono_mb_emit_ldarg (mb, i);
4198 mono_mb_emit_byte (mb, CEE_STLOC_1);
4199
4200 /* emit valuetype conversion code */
4201 emit_struct_conv (mb, klass, FALSE);
4202
4203 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
4204 break;
4205 }
4206 }
4207 }
4208
4209 if (retobj_var) {
4210 mono_mb_emit_ldloc (mb, retobj_var);
4211 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4212 mono_mb_emit_byte (mb, CEE_MONO_RETOBJ);
4213 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4214 }
4215 else {
4216 if (!MONO_TYPE_IS_VOID(sig->ret))
4217 mono_mb_emit_byte (mb, CEE_LDLOC_3);
4218 mono_mb_emit_byte (mb, CEE_RET);
4219 }
4220
4221 if (!this)
4222 res = mono_mb_create_and_cache (cache, method,
4223 mb, csig, sig->param_count + 16);
4224 else {
4225 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
4226 res->dynamic = 1;
4227 }
4228 mono_mb_free (mb);
4229
4230 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
4231
4232 return res;
4233 }
4234
4235 /*
4236 * mono_marshal_get_ldfld_wrapper:
4237 * @type: the type of the field
4238 *
4239 * This method generates a function which can be use to load a field with type
4240 * @type from an object. The generated function has the following signature:
4241 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4242 */
4243 MonoMethod *
4244 mono_marshal_get_ldfld_wrapper (MonoType *type)
4245 {
4246 MonoMethodSignature *sig, *csig;
4247 MonoMethodBuilder *mb;
4248 MonoMethod *res;
4249 MonoClass *klass;
4250 static GHashTable *ldfld_hash = NULL;
4251 char *name;
4252 int t, pos0, pos1 = 0;
4253
4254 t = type->type;
4255
4256 if (!type->byref) {
4257 if (type->type == MONO_TYPE_SZARRAY) {
4258 klass = mono_defaults.array_class;
4259 } else if (type->type == MONO_TYPE_VALUETYPE) {
4260 klass = type->data.klass;
4261 if (klass->enumtype) {
4262 t = klass->enum_basetype->type;
4263 klass = mono_class_from_mono_type (klass->enum_basetype);
4264 }
4265 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
4266 t == MONO_TYPE_CLASS) {
4267 klass = mono_defaults.object_class;
4268 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4269 klass = mono_defaults.int_class;
4270 } else {
4271 klass = mono_class_from_mono_type (type);
4272 }
4273 } else {
4274 klass = mono_defaults.int_class;
4275 }
4276
4277 EnterCriticalSection (&marshal_mutex);
4278 if (!ldfld_hash)
4279 ldfld_hash = g_hash_table_new (NULL, NULL);
4280 res = g_hash_table_lookup (ldfld_hash, klass);
4281 LeaveCriticalSection (&marshal_mutex);
4282 if (res)
4283 return res;
4284
4285 name = g_strdup_printf ("__ldfld_wrapper_%s.%s", klass->name_space, klass->name);
4286 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4287 g_free (name);
4288
4289 mb->method->save_lmf = 1;
4290
4291 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4292 sig->params [0] = &mono_defaults.object_class->byval_arg;
4293 sig->params [1] = &mono_defaults.int_class->byval_arg;
4294 sig->params [2] = &mono_defaults.int_class->byval_arg;
4295 sig->params [3] = &mono_defaults.int_class->byval_arg;
4296 sig->ret = &klass->byval_arg;
4297
4298 mono_mb_emit_ldarg (mb, 0);
4299 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4300
4301 mono_mb_emit_ldarg (mb, 0);
4302 mono_mb_emit_ldarg (mb, 1);
4303 mono_mb_emit_ldarg (mb, 2);
4304
4305 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4306 csig->params [0] = &mono_defaults.object_class->byval_arg;
4307 csig->params [1] = &mono_defaults.int_class->byval_arg;
4308 csig->params [2] = &mono_defaults.int_class->byval_arg;
4309 csig->ret = &klass->this_arg;
4310 csig->pinvoke = 1;
4311
4312 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4313 emit_thread_interrupt_checkpoint (mb);
4314
4315 if (klass->valuetype) {
4316 mono_mb_emit_byte (mb, CEE_UNBOX);
4317 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4318 mono_mb_emit_byte (mb, CEE_BR);
4319 pos1 = mb->pos;
4320 mono_mb_emit_i4 (mb, 0);
4321 } else {
4322 mono_mb_emit_byte (mb, CEE_RET);
4323 }
4324
4325
4326 mono_mb_patch_addr (mb, pos0, mb->pos - (pos0 + 4));
4327
4328 mono_mb_emit_ldarg (mb, 0);
4329 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4330 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4331 mono_mb_emit_ldarg (mb, 3);
4332 mono_mb_emit_byte (mb, CEE_ADD);
4333
4334 if (klass->valuetype)
4335 mono_mb_patch_addr (mb, pos1, mb->pos - (pos1 + 4));
4336
4337 switch (t) {
4338 case MONO_TYPE_I1:
4339 case MONO_TYPE_U1:
4340 case MONO_TYPE_BOOLEAN:
4341 mono_mb_emit_byte (mb, CEE_LDIND_I1);
4342 break;
4343 case MONO_TYPE_CHAR:
4344 case MONO_TYPE_I2:
4345 case MONO_TYPE_U2:
4346 mono_mb_emit_byte (mb, CEE_LDIND_I2);
4347 break;
4348 case MONO_TYPE_I4:
4349 case MONO_TYPE_U4:
4350 mono_mb_emit_byte (mb, CEE_LDIND_I4);
4351 break;
4352 case MONO_TYPE_I8:
4353 case MONO_TYPE_U8:
4354 mono_mb_emit_byte (mb, CEE_LDIND_I8);
4355 break;
4356 case MONO_TYPE_R4:
4357 mono_mb_emit_byte (mb, CEE_LDIND_R4);
4358 break;
4359 case MONO_TYPE_R8:
4360 mono_mb_emit_byte (mb, CEE_LDIND_R8);
4361 break;
4362 case MONO_TYPE_ARRAY:
4363 case MONO_TYPE_PTR:
4364 case MONO_TYPE_FNPTR:
4365 case MONO_TYPE_SZARRAY:
4366 case MONO_TYPE_OBJECT:
4367 case MONO_TYPE_CLASS:
4368 case MONO_TYPE_STRING:
4369 case MONO_TYPE_I:
4370 case MONO_TYPE_U:
4371 mono_mb_emit_byte (mb, CEE_LDIND_I);
4372 break;
4373 case MONO_TYPE_VALUETYPE:
4374 g_assert (!klass->enumtype);
4375 mono_mb_emit_byte (mb, CEE_LDOBJ);
4376 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4377 break;
4378 default:
4379 g_warning ("type %x not implemented", type->type);
4380 g_assert_not_reached ();
4381 }
4382
4383 mono_mb_emit_byte (mb, CEE_RET);
4384
4385 res = mono_mb_create_and_cache (ldfld_hash, klass,
4386 mb, sig, sig->param_count + 16);
4387 mono_mb_free (mb);
4388
4389 return res;
4390 }
4391
4392 /*
4393 * mono_marshal_get_stfld_wrapper:
4394 * @type: the type of the field
4395 *
4396 * This method generates a function which can be use to store a field with type
4397 * @type. The generated function has the following signature:
4398 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
4399 */
4400 MonoMethod *
4401 mono_marshal_get_stfld_wrapper (MonoType *type)
4402 {
4403 MonoMethodSignature *sig, *csig;
4404 MonoMethodBuilder *mb;
4405 MonoMethod *res;
4406 MonoClass *klass;
4407 static GHashTable *stfld_hash = NULL;
4408 char *name;
4409 int t, pos;
4410
4411 t = type->type;
4412
4413 if (!type->byref) {
4414 if (type->type == MONO_TYPE_SZARRAY) {
4415 klass = mono_defaults.array_class;
4416 } else if (type->type == MONO_TYPE_VALUETYPE) {
4417 klass = type->data.klass;
4418 if (klass->enumtype) {
4419 t = klass->enum_basetype->type;
4420 klass = mono_class_from_mono_type (klass->enum_basetype);
4421 }
4422 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
4423 t == MONO_TYPE_CLASS) {
4424 klass = mono_defaults.object_class;
4425 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4426 klass = mono_defaults.int_class;
4427 } else {
4428 klass = mono_class_from_mono_type (type);
4429 }
4430 } else {
4431 klass = mono_defaults.int_class;
4432 }
4433
4434 EnterCriticalSection (&marshal_mutex);
4435 if (!stfld_hash)
4436 stfld_hash = g_hash_table_new (NULL, NULL);
4437 res = g_hash_table_lookup (stfld_hash, klass);
4438 LeaveCriticalSection (&marshal_mutex);
4439 if (res)
4440 return res;
4441
4442 name = g_strdup_printf ("__stfld_wrapper_%s.%s", klass->name_space, klass->name);
4443 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
4444 g_free (name);
4445
4446 mb->method->save_lmf = 1;
4447
4448 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
4449 sig->params [0] = &mono_defaults.object_class->byval_arg;
4450 sig->params [1] = &mono_defaults.int_class->byval_arg;
4451 sig->params [2] = &mono_defaults.int_class->byval_arg;
4452 sig->params [3] = &mono_defaults.int_class->byval_arg;
4453 sig->params [4] = &klass->byval_arg;
4454 sig->ret = &mono_defaults.void_class->byval_arg;
4455
4456 mono_mb_emit_ldarg (mb, 0);
4457 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4458
4459 mono_mb_emit_ldarg (mb, 0);
4460 mono_mb_emit_ldarg (mb, 1);
4461 mono_mb_emit_ldarg (mb, 2);
4462 mono_mb_emit_ldarg (mb, 4);
4463
4464 if (klass->valuetype) {
4465 mono_mb_emit_byte (mb, CEE_BOX);
4466 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4467 }
4468
4469 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4470 csig->params [0] = &mono_defaults.object_class->byval_arg;
4471 csig->params [1] = &mono_defaults.int_class->byval_arg;
4472 csig->params [2] = &mono_defaults.int_class->byval_arg;
4473 csig->params [3] = &klass->this_arg;
4474 csig->ret = &mono_defaults.void_class->byval_arg;
4475 csig->pinvoke = 1;
4476
4477 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
4478 emit_thread_interrupt_checkpoint (mb);
4479
4480 mono_mb_emit_byte (mb, CEE_RET);
4481
4482 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4483
4484 mono_mb_emit_ldarg (mb, 0);
4485 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4486 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4487 mono_mb_emit_ldarg (mb, 3);
4488 mono_mb_emit_byte (mb, CEE_ADD);
4489 mono_mb_emit_ldarg (mb, 4);
4490
4491 switch (t) {
4492 case MONO_TYPE_I1:
4493 case MONO_TYPE_U1:
4494 case MONO_TYPE_BOOLEAN:
4495 mono_mb_emit_byte (mb, CEE_STIND_I1);
4496 break;
4497 case MONO_TYPE_CHAR:
4498 case MONO_TYPE_I2:
4499 case MONO_TYPE_U2:
4500 mono_mb_emit_byte (mb, CEE_STIND_I2);
4501 break;
4502 case MONO_TYPE_I4:
4503 case MONO_TYPE_U4:
4504 mono_mb_emit_byte (mb, CEE_STIND_I4);
4505 break;
4506 case MONO_TYPE_I8:
4507 case MONO_TYPE_U8:
4508 mono_mb_emit_byte (mb, CEE_STIND_I8);
4509 break;
4510 case MONO_TYPE_R4:
4511 mono_mb_emit_byte (mb, CEE_STIND_R4);
4512 break;
4513 case MONO_TYPE_R8:
4514 mono_mb_emit_byte (mb, CEE_STIND_R8);
4515 break;
4516 case MONO_TYPE_ARRAY:
4517 case MONO_TYPE_PTR:
4518 case MONO_TYPE_FNPTR:
4519 case MONO_TYPE_SZARRAY:
4520 case MONO_TYPE_OBJECT:
4521 case MONO_TYPE_CLASS:
4522 case MONO_TYPE_STRING:
4523 case MONO_TYPE_I:
4524 case MONO_TYPE_U:
4525 mono_mb_emit_byte (mb, CEE_STIND_I);
4526 break;
4527 case MONO_TYPE_VALUETYPE:
4528 g_assert (!klass->enumtype);
4529 mono_mb_emit_byte (mb, CEE_STOBJ);
4530 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4531 break;
4532 default:
4533 g_warning ("type %x not implemented", type->type);
4534 g_assert_not_reached ();
4535 }
4536
4537 mono_mb_emit_byte (mb, CEE_RET);
4538
4539 res = mono_mb_create_and_cache (stfld_hash, klass,
4540 mb, sig, sig->param_count + 16);
4541 mono_mb_free (mb);
4542
4543 return res;
4544 }
4545
4546 /*
4547 * generates IL code for the icall wrapper (the generated method
4548 * calls the unmanaged code in func)
4549 */
4550 MonoMethod *
4551 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func)
4552 {
4553 MonoMethodSignature *csig;
4554 MonoMethodBuilder *mb;
4555 MonoMethod *res;
4556 int i;
4557
4558 g_assert (sig->pinvoke);
4559
4560 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4561
4562 mb->method->save_lmf = 1;
4563
4564 /* we copy the signature, so that we can modify it */
4565
4566 if (sig->hasthis)
4567 mono_mb_emit_byte (mb, CEE_LDARG_0);
4568
4569 for (i = 0; i < sig->param_count; i++)
4570 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4571
4572 mono_mb_emit_native_call (mb, sig, (gpointer) func);
4573 emit_thread_interrupt_checkpoint (mb);
4574 mono_mb_emit_byte (mb, CEE_RET);
4575
4576 csig = mono_metadata_signature_dup (sig);
4577 csig->pinvoke = 0;
4578 if (csig->call_convention == MONO_CALL_VARARG)
4579 csig->call_convention = 0;
4580
4581 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
4582 mono_mb_free (mb);
4583
4584 return res;
4585 }
4586
4587 typedef struct {
4588 MonoMethodBuilder *mb;
4589 MonoMethodPInvoke *piinfo;
4590 int *orig_conv_args; /* Locals containing the original values of byref args */
4591 } EmitMarshalContext;
4592
4593 typedef enum {
4594 MARSHAL_ACTION_CONV_IN,
4595 MARSHAL_ACTION_PUSH,
4596 MARSHAL_ACTION_CONV_OUT,
4597 MARSHAL_ACTION_CONV_RESULT
4598 } MarshalAction;
4599
4600 static int
4601 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4602 MonoMarshalSpec *spec,
4603 int conv_arg, MonoType **conv_arg_type,
4604 MarshalAction action)
4605 {
4606 MonoType *mtype;
4607 MonoClass *mklass;
4608 MonoMethod *get_instance, *cleanup_native;
4609 MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4610 MonoMethodBuilder *mb = m->mb;
4611 guint32 loc1;
4612
4613 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, mb->method->klass->image);
4614 g_assert (mtype != NULL);
4615 mklass = mono_class_from_mono_type (mtype);
4616 g_assert (mklass != NULL);
4617
4618 get_instance = mono_class_get_method_from_name (mklass, "GetInstance", 1);
4619 g_assert (get_instance);
4620 cleanup_native = mono_class_get_method_from_name (mklass, "CleanUpNativeData", 1);
4621 g_assert (cleanup_native);
4622 marshal_managed_to_native = mono_class_get_method_from_name (mklass, "MarshalManagedToNative", 1);
4623 g_assert (marshal_managed_to_native);
4624 marshal_native_to_managed = mono_class_get_method_from_name (mklass, "MarshalNativeToManaged", 1);
4625 g_assert (marshal_native_to_managed);
4626
4627 switch (action) {
4628 case MARSHAL_ACTION_CONV_IN:
4629 switch (t->type) {
4630 case MONO_TYPE_CLASS:
4631 case MONO_TYPE_OBJECT:
4632 case MONO_TYPE_STRING:
4633 case MONO_TYPE_ARRAY:
4634 case MONO_TYPE_SZARRAY:
4635 case MONO_TYPE_VALUETYPE:
4636 if (t->byref)
4637 break;
4638
4639 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4640
4641 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4642
4643 mono_mb_emit_byte (mb, CEE_CALL);
4644 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
4645
4646 mono_mb_emit_ldarg (mb, argnum);
4647
4648 if (t->type == MONO_TYPE_VALUETYPE) {
4649 /*
4650 * Since we can't determine the type of the argument, we
4651 * will assume the unmanaged function takes a pointer.
4652 */
4653 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4654
4655 mono_mb_emit_byte (mb, CEE_BOX);
4656 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_class_from_mono_type (t)));
4657 }
4658
4659 mono_mb_emit_byte (mb, CEE_CALLVIRT);
4660 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_managed_to_native));
4661 mono_mb_emit_stloc (mb, conv_arg);
4662 break;
4663
4664 default:
4665 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4666 g_assert_not_reached ();
4667 break;
4668 }
4669
4670 break;
4671
4672 case MARSHAL_ACTION_CONV_OUT:
4673 switch (t->type) {
4674 case MONO_TYPE_CLASS:
4675 case MONO_TYPE_OBJECT:
4676 case MONO_TYPE_STRING:
4677 case MONO_TYPE_ARRAY:
4678 case MONO_TYPE_SZARRAY:
4679 case MONO_TYPE_VALUETYPE:
4680 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4681
4682 mono_mb_emit_byte (mb, CEE_CALL);
4683 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
4684
4685 mono_mb_emit_ldloc (mb, conv_arg);
4686
4687 mono_mb_emit_byte (mb, CEE_CALLVIRT);
4688 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, cleanup_native));
4689
4690 break;
4691
4692 default:
4693 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4694 g_assert_not_reached ();
4695 break;
4696 }
4697 break;
4698
4699 case MARSHAL_ACTION_PUSH:
4700 mono_mb_emit_ldloc (mb, conv_arg);
4701 break;
4702
4703 case MARSHAL_ACTION_CONV_RESULT:
4704 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4705
4706 switch (t->type) {
4707 case MONO_TYPE_CLASS:
4708 case MONO_TYPE_OBJECT:
4709 case MONO_TYPE_STRING:
4710 case MONO_TYPE_ARRAY:
4711 case MONO_TYPE_SZARRAY:
4712 mono_mb_emit_byte (mb, CEE_STLOC_3);
4713
4714 mono_mb_emit_byte (mb, CEE_LDLOC_3);
4715 mono_mb_emit_stloc (mb, loc1);
4716
4717 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4718
4719 mono_mb_emit_byte (mb, CEE_CALL);
4720 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, get_instance));
4721 mono_mb_emit_byte (mb, CEE_DUP);
4722
4723 mono_mb_emit_byte (mb, CEE_LDLOC_3);
4724 mono_mb_emit_byte (mb, CEE_CALLVIRT);
4725 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, marshal_native_to_managed));
4726 mono_mb_emit_byte (mb, CEE_STLOC_3);
4727
4728 mono_mb_emit_ldloc (mb, loc1);
4729 mono_mb_emit_byte (mb, CEE_CALLVIRT);
4730 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, cleanup_native));
4731
4732 break;
4733 default:
4734 g_assert_not_reached ();
4735 break;
4736 }
4737 break;
4738
4739 default:
4740 g_assert_not_reached ();
4741 }
4742
4743 return conv_arg;
4744 }
4745
4746 static int
4747 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4748 MonoMarshalSpec *spec,
4749 int conv_arg, MonoType **conv_arg_type,
4750 MarshalAction action)
4751 {
4752 MonoMethodBuilder *mb = m->mb;
4753
4754 switch (action) {
4755 case MARSHAL_ACTION_CONV_IN: {
4756 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4757
4758 g_assert (t->type == MONO_TYPE_OBJECT);
4759 g_assert (!t->byref);
4760
4761 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4762 mono_mb_emit_ldarg (mb, argnum);
4763 mono_mb_emit_icon (mb, encoding);
4764 mono_mb_emit_icall (mb, mono_marshal_asany);
4765 mono_mb_emit_stloc (mb, conv_arg);
4766 break;
4767 }
4768
4769 case MARSHAL_ACTION_PUSH:
4770 mono_mb_emit_ldloc (mb, conv_arg);
4771 break;
4772
4773 case MARSHAL_ACTION_CONV_OUT: {
4774 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4775
4776 mono_mb_emit_ldarg (mb, argnum);
4777 mono_mb_emit_ldloc (mb, conv_arg);
4778 mono_mb_emit_icon (mb, encoding);
4779 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4780 break;
4781 }
4782
4783 default:
4784 g_assert_not_reached ();
4785 }
4786
4787 return conv_arg;
4788 }
4789
4790 static int
4791 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4792 MonoMarshalSpec *spec,
4793 int conv_arg, MonoType **conv_arg_type,
4794 MarshalAction action)
4795 {
4796 MonoMethodBuilder *mb = m->mb;
4797 MonoClass *klass;
4798 int pos = 0;
4799
4800 klass = t->data.klass;
4801
4802 switch (action) {
4803 case MARSHAL_ACTION_CONV_IN:
4804 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4805 klass->blittable || klass->enumtype)
4806 break;
4807
4808 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4809
4810 /* store the address of the source into local variable 0 */
4811 if (t->byref)
4812 mono_mb_emit_ldarg (mb, argnum);
4813 else
4814 mono_mb_emit_ldarg_addr (mb, argnum);
4815
4816 mono_mb_emit_byte (mb, CEE_STLOC_0);
4817
4818 /* allocate space for the native struct and
4819 * store the address into local variable 1 (dest) */
4820 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4821 mono_mb_emit_byte (mb, CEE_PREFIX1);
4822 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4823 mono_mb_emit_stloc (mb, conv_arg);
4824
4825 if (t->byref) {
4826 mono_mb_emit_byte (mb, CEE_LDLOC_0);
4827 mono_mb_emit_byte (mb, CEE_BRFALSE);
4828 pos = mb->pos;
4829 mono_mb_emit_i4 (mb, 0);
4830 }
4831
4832 /* set dst_ptr */
4833 mono_mb_emit_ldloc (mb, conv_arg);
4834 mono_mb_emit_byte (mb, CEE_STLOC_1);
4835
4836 /* emit valuetype conversion code */
4837 emit_struct_conv (mb, klass, FALSE);
4838
4839 if (t->byref)
4840 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4841 break;
4842
4843 case MARSHAL_ACTION_PUSH:
4844 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4845 klass->blittable || klass->enumtype) {
4846 mono_mb_emit_ldarg (mb, argnum);
4847 break;
4848 }
4849 mono_mb_emit_ldloc (mb, conv_arg);
4850 if (!t->byref) {
4851 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4852 mono_mb_emit_byte (mb, CEE_MONO_LDNATIVEOBJ);
4853 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
4854 }
4855 break;
4856
4857 case MARSHAL_ACTION_CONV_OUT:
4858 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4859 klass->blittable || klass->enumtype)
4860 break;
4861
4862 if (t->byref) {
4863 /* dst = argument */
4864 mono_mb_emit_ldarg (mb, argnum);
4865 mono_mb_emit_byte (mb, CEE_STLOC_1);
4866
4867 mono_mb_emit_byte (mb, CEE_LDLOC_1);
4868 mono_mb_emit_byte (mb, CEE_BRFALSE);
4869 pos = mb->pos;
4870 mono_mb_emit_i4 (mb, 0);
4871
4872 /* src = tmp_locals [i] */
4873 mono_mb_emit_ldloc (mb, conv_arg);
4874 mono_mb_emit_byte (mb, CEE_STLOC_0);
4875
4876 /* emit valuetype conversion code */
4877 emit_struct_conv (mb, klass, TRUE);
4878 }
4879
4880 emit_struct_free (mb, klass, conv_arg);
4881
4882 if (t->byref)
4883 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
4884 break;
4885
4886 case MARSHAL_ACTION_CONV_RESULT:
4887 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4888 klass->blittable) {
4889 mono_mb_emit_byte (mb, CEE_STLOC_3);
4890 break;
4891 }
4892 /* load pointer to returned value type */
4893 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4894 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4895 /* store the address of the source into local variable 0 */
4896 mono_mb_emit_byte (mb, CEE_STLOC_0);
4897 /* set dst_ptr */
4898 mono_mb_emit_ldloc_addr (mb, 3);
4899 mono_mb_emit_byte (mb, CEE_STLOC_1);
4900
4901 /* emit valuetype conversion code */
4902 emit_struct_conv (mb, klass, TRUE);
4903 break;
4904
4905 default:
4906 g_assert_not_reached ();
4907 }
4908
4909 return conv_arg;
4910 }
4911
4912 static int
4913 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4914 MonoMarshalSpec *spec,
4915 int conv_arg, MonoType **conv_arg_type,
4916 MarshalAction action)
4917 {
4918 MonoMethodBuilder *mb = m->mb;
4919 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4920 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4921
4922 switch (action) {
4923 case MARSHAL_ACTION_CONV_IN:
4924 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4925 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4926
4927 if (t->byref) {
4928 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4929 break;
4930
4931 mono_mb_emit_ldarg (mb, argnum);
4932 mono_mb_emit_byte (mb, CEE_LDIND_I);
4933 } else {
4934 mono_mb_emit_ldarg (mb, argnum);
4935 }
4936
4937 if (conv == -1) {
4938 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4939 MonoException *exc = mono_get_exception_not_implemented (msg);
4940 g_warning (msg);
4941 g_free (msg);
4942 mono_raise_exception (exc);
4943 }
4944 else
4945 mono_mb_emit_icall (mb, conv_to_icall (conv));
4946
4947 mono_mb_emit_stloc (mb, conv_arg);
4948 break;
4949
4950 case MARSHAL_ACTION_CONV_OUT:
4951 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
4952 mono_mb_emit_ldarg (mb, argnum);
4953 mono_mb_emit_ldloc (mb, conv_arg);
4954 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
4955 mono_mb_emit_byte (mb, CEE_STIND_I);
4956 } else {
4957 if (mono_marshal_need_free (t, m->piinfo, spec)) {
4958 mono_mb_emit_ldloc (mb, conv_arg);
4959 mono_mb_emit_icall (mb, mono_marshal_free);
4960 }
4961 }
4962 break;
4963
4964 case MARSHAL_ACTION_CONV_RESULT:
4965 mono_mb_emit_byte (mb, CEE_STLOC_0);
4966 mono_mb_emit_byte (mb, CEE_LDLOC_0);
4967
4968 if (spec) {
4969 switch (spec->native) {
4970 case MONO_NATIVE_LPWSTR:
4971 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPWSTR_STR));
4972 break;
4973 default:
4974 g_warning ("marshalling conversion not implemented");
4975 g_assert_not_reached ();
4976 }
4977 } else {
4978 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
4979 }
4980 mono_mb_emit_byte (mb, CEE_STLOC_3);
4981
4982 /* free the string */
4983 mono_mb_emit_byte (mb, CEE_LDLOC_0);
4984 mono_mb_emit_icall (mb, g_free);
4985 break;
4986
4987 default:
4988 g_assert_not_reached ();
4989 }
4990
4991 return conv_arg;
4992 }
4993
4994 static int
4995 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
4996 MonoMarshalSpec *spec,
4997 int conv_arg, MonoType **conv_arg_type,
4998 MarshalAction action)
4999 {
5000 MonoMethodBuilder *mb = m->mb;
5001 MonoClass *klass = t->data.klass;
5002 int pos, pos2, loc;
5003
5004 switch (action) {
5005 case MARSHAL_ACTION_CONV_IN:
5006 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5007 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5008
5009 m->orig_conv_args [argnum] = 0;
5010
5011 if (klass->delegate) {
5012 g_assert (!t->byref);
5013 mono_mb_emit_ldarg (mb, argnum);
5014 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5015 mono_mb_emit_stloc (mb, conv_arg);
5016 } else if (klass == mono_defaults.stringbuilder_class) {
5017 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5018 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5019
5020 g_assert (!t->byref);
5021 mono_mb_emit_ldarg (mb, argnum);
5022
5023 if (conv != -1)
5024 mono_mb_emit_icall (mb, conv_to_icall (conv));
5025 else {
5026 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5027 MonoException *exc = mono_get_exception_not_implemented (msg);
5028 g_warning (msg);
5029 g_free (msg);
5030 mono_raise_exception (exc);
5031 }
5032
5033 mono_mb_emit_stloc (mb, conv_arg);
5034 } else if (klass->blittable) {
5035 mono_mb_emit_ldarg (mb, argnum);
5036 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5037 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5038 mono_mb_emit_icon (mb, sizeof (MonoObject));
5039 mono_mb_emit_byte (mb, CEE_ADD);
5040 mono_mb_emit_stloc (mb, conv_arg);
5041 break;
5042 } else {
5043 mono_mb_emit_byte (mb, CEE_LDNULL);
5044 mono_mb_emit_stloc (mb, conv_arg);
5045
5046 if (t->byref) {
5047 /* we dont need any conversions for out parameters */
5048 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5049 break;
5050
5051 mono_mb_emit_ldarg (mb, argnum);
5052 mono_mb_emit_byte (mb, CEE_LDIND_I);
5053
5054 } else {
5055 mono_mb_emit_ldarg (mb, argnum);
5056 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5057 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5058 }
5059
5060 /* store the address of the source into local variable 0 */
5061 mono_mb_emit_byte (mb, CEE_STLOC_0);
5062 mono_mb_emit_byte (mb, CEE_LDLOC_0);
5063 mono_mb_emit_byte (mb, CEE_BRFALSE);
5064 pos = mb->pos;
5065 mono_mb_emit_i4 (mb, 0);
5066
5067 /* allocate space for the native struct and store the address */
5068 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5069 mono_mb_emit_byte (mb, CEE_PREFIX1);
5070 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5071 mono_mb_emit_stloc (mb, conv_arg);
5072
5073 if (t->byref) {
5074 /* Need to store the original buffer so we can free it later */
5075 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5076 mono_mb_emit_ldloc (mb, conv_arg);
5077 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5078 }
5079
5080 /* set the src_ptr */
5081 mono_mb_emit_byte (mb, CEE_LDLOC_0);
5082 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5083 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5084 mono_mb_emit_icon (mb, sizeof (MonoObject));
5085 mono_mb_emit_byte (mb, CEE_ADD);
5086 mono_mb_emit_byte (mb, CEE_STLOC_0);
5087
5088 /* set dst_ptr */
5089 mono_mb_emit_ldloc (mb, conv_arg);
5090 mono_mb_emit_byte (mb, CEE_STLOC_1);
5091
5092 /* emit valuetype conversion code */
5093 emit_struct_conv (mb, klass, FALSE);
5094
5095 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
5096 }
5097 break;
5098
5099 case MARSHAL_ACTION_CONV_OUT:
5100 if (klass == mono_defaults.stringbuilder_class) {
5101 gboolean need_free;
5102 MonoMarshalNative encoding;
5103 MonoMarshalConv conv;
5104
5105 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5106 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5107
5108 g_assert (!t->byref);
5109 g_assert (encoding != -1);
5110
5111 mono_mb_emit_ldarg (mb, argnum);
5112 mono_mb_emit_ldloc (mb, conv_arg);
5113
5114 mono_mb_emit_icall (mb, conv_to_icall (conv));
5115
5116 if (need_free) {
5117 mono_mb_emit_ldloc (mb, conv_arg);
5118 mono_mb_emit_icall (mb, mono_marshal_free);
5119 }
5120 break;
5121 }
5122
5123 if (klass->delegate)
5124 break;
5125
5126 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5127 /* allocate a new object */
5128 mono_mb_emit_ldarg (mb, argnum);
5129 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5130 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
5131 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, t->data.klass));
5132 mono_mb_emit_byte (mb, CEE_STIND_I);
5133 }
5134
5135 /* dst = *argument */
5136 mono_mb_emit_ldarg (mb, argnum);
5137
5138 if (t->byref)
5139 mono_mb_emit_byte (mb, CEE_LDIND_I);
5140
5141 mono_mb_emit_byte (mb, CEE_STLOC_1);
5142
5143 mono_mb_emit_byte (mb, CEE_LDLOC_1);
5144 mono_mb_emit_byte (mb, CEE_BRFALSE);
5145 pos = mb->pos;
5146 mono_mb_emit_i4 (mb, 0);
5147
5148 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5149 mono_mb_emit_byte (mb, CEE_LDLOC_1);
5150 mono_mb_emit_icon (mb, sizeof (MonoObject));
5151 mono_mb_emit_byte (mb, CEE_ADD);
5152 mono_mb_emit_byte (mb, CEE_STLOC_1);
5153
5154 /* src = tmp_locals [i] */
5155 mono_mb_emit_ldloc (mb, conv_arg);
5156 mono_mb_emit_byte (mb, CEE_STLOC_0);
5157
5158 /* emit valuetype conversion code */
5159 emit_struct_conv (mb, t->data.klass, TRUE);
5160
5161 /* Free the structure returned by the native code */
5162 emit_struct_free (mb, klass, conv_arg);
5163
5164 if (m->orig_conv_args [argnum]) {
5165 /*
5166 * If the native function changed the pointer, then free
5167 * the original structure plus the new pointer.
5168 */
5169 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5170 mono_mb_emit_ldloc (mb, conv_arg);
5171 mono_mb_emit_byte (mb, CEE_BEQ);
5172 pos2 = mb->pos;
5173 mono_mb_emit_i4 (mb, 0);
5174
5175 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5176 g_assert (m->orig_conv_args [argnum]);
5177
5178 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5179 }
5180
5181 mono_mb_emit_ldloc (mb, conv_arg);
5182 mono_mb_emit_icall (mb, g_free);
5183
5184 mono_mb_patch_addr (mb, pos2, mb->pos - (pos2 + 4));
5185 }
5186 }
5187 else
5188 /* Free the original structure passed to native code */
5189 emit_struct_free (mb, klass, conv_arg);
5190
5191 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
5192 break;
5193
5194 case MARSHAL_ACTION_CONV_RESULT:
5195 if (klass->delegate) {
5196 g_assert (!t->byref);
5197 mono_mb_emit_byte (mb, CEE_STLOC_0);
5198 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5199 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
5200 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
5201 mono_mb_emit_byte (mb, CEE_LDLOC_0);
5202 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5203 mono_mb_emit_byte (mb, CEE_STLOC_3);
5204 } else {
5205 /* set src */
5206 mono_mb_emit_byte (mb, CEE_STLOC_0);
5207
5208 /* Make a copy since emit_conv modifies local 0 */
5209 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5210 mono_mb_emit_byte (mb, CEE_LDLOC_0);
5211 mono_mb_emit_stloc (mb, loc);
5212
5213 mono_mb_emit_byte (mb, CEE_LDNULL);
5214 mono_mb_emit_byte (mb, CEE_STLOC_3);
5215
5216 mono_mb_emit_byte (mb, CEE_LDLOC_0);
5217 mono_mb_emit_byte (mb, CEE_BRFALSE);
5218 pos = mb->pos;
5219 mono_mb_emit_i4 (mb, 0);
5220
5221 /* allocate result object */
5222
5223 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5224 mono_mb_emit_byte (mb, CEE_MONO_NEWOBJ);
5225 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
5226 mono_mb_emit_byte (mb, CEE_STLOC_3);
5227
5228 /* set dst */
5229
5230 mono_mb_emit_byte (mb, CEE_LDLOC_3);
5231 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5232 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5233 mono_mb_emit_icon (mb, sizeof (MonoObject));
5234 mono_mb_emit_byte (mb, CEE_ADD);
5235 mono_mb_emit_byte (mb, CEE_STLOC_1);
5236
5237 /* emit conversion code */
5238 emit_struct_conv (mb, klass, TRUE);
5239
5240 emit_struct_free (mb, klass, loc);
5241
5242 /* Free the pointer allocated by unmanaged code */
5243 mono_mb_emit_ldloc (mb, loc);
5244 mono_mb_emit_icall (mb, g_free);
5245 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
5246 }
5247 break;
5248
5249 default:
5250 g_assert_not_reached ();
5251 }
5252
5253 return conv_arg;
5254 }
5255
5256 static int
5257 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5258 MonoMarshalSpec *spec,
5259 int conv_arg, MonoType **conv_arg_type,
5260 MarshalAction action)
5261 {
5262 MonoMethodBuilder *mb = m->mb;
5263 MonoClass *klass = mono_class_from_mono_type (t);
5264 gboolean need_convert, need_free;
5265
5266 switch (action) {
5267 case MARSHAL_ACTION_CONV_IN:
5268 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5269 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5270
5271 if (klass->element_class->blittable) {
5272 mono_mb_emit_ldarg (mb, argnum);
5273 if (t->byref)
5274 mono_mb_emit_byte (mb, CEE_LDIND_I);
5275 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
5276 mono_mb_emit_stloc (mb, conv_arg);
5277 }
5278 else {
5279 MonoClass *eklass;
5280 guint32 label1, label2, label3;
5281 int index_var, src_var, dest_ptr, esize;
5282 MonoMarshalNative encoding;
5283 MonoMarshalConv conv;
5284 gboolean is_string = FALSE;
5285
5286 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5287
5288 eklass = klass->element_class;
5289
5290 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5291 if (eklass == mono_defaults.string_class) {
5292 is_string = TRUE;
5293 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5294 }
5295 else if (eklass == mono_defaults.stringbuilder_class) {
5296 is_string = TRUE;
5297 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5298 }
5299 else
5300 conv = -1;
5301
5302 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5303 mono_mb_emit_ldarg (mb, argnum);
5304 if (t->byref)
5305 mono_mb_emit_byte (mb, CEE_LDIND_I);
5306 mono_mb_emit_stloc (mb, src_var);
5307
5308 /* Check null */
5309 mono_mb_emit_ldloc (mb, src_var);
5310 mono_mb_emit_stloc (mb, conv_arg);
5311 mono_mb_emit_ldloc (mb, src_var);
5312 mono_mb_emit_byte (mb, CEE_BRFALSE);
5313 label1 = mb->pos;
5314 mono_mb_emit_i4 (mb, 0);
5315
5316 if (is_string) {
5317 if (conv == -1) {
5318 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
5319 MonoException *exc = mono_get_exception_not_implemented (msg);
5320 g_warning (msg);
5321 g_free (msg);
5322 mono_raise_exception (exc);
5323 }
5324 }
5325
5326 if (is_string)
5327 esize = sizeof (gpointer);
5328 else
5329 esize = mono_class_native_size (eklass, NULL);
5330
5331 /* allocate space for the native struct and store the address */
5332 mono_mb_emit_icon (mb, esize);
5333 mono_mb_emit_ldloc (mb, src_var);
5334 mono_mb_emit_byte (mb, CEE_LDLEN);
5335
5336 if (eklass == mono_defaults.string_class) {
5337 /* Make the array bigger for the terminating null */
5338 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
5339 mono_mb_emit_byte (mb, CEE_ADD);
5340 }
5341 mono_mb_emit_byte (mb, CEE_MUL);
5342 mono_mb_emit_byte (mb, CEE_PREFIX1);
5343 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5344 mono_mb_emit_stloc (mb, conv_arg);
5345
5346 mono_mb_emit_ldloc (mb, conv_arg);
5347 mono_mb_emit_stloc (mb, dest_ptr);
5348
5349 /* Emit marshalling loop */
5350 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5351 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5352 mono_mb_emit_stloc (mb, index_var);
5353 label2 = mb->pos;
5354 mono_mb_emit_ldloc (mb, index_var);
5355 mono_mb_emit_ldloc (mb, src_var);
5356 mono_mb_emit_byte (mb, CEE_LDLEN);
5357 mono_mb_emit_byte (mb, CEE_BGE);
5358 label3 = mb->pos;
5359 mono_mb_emit_i4 (mb, 0);
5360
5361 /* Emit marshalling code */
5362
5363 if (is_string) {
5364 mono_mb_emit_ldloc (mb, dest_ptr);
5365 mono_mb_emit_ldloc (mb, src_var);
5366 mono_mb_emit_ldloc (mb, index_var);
5367 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
5368 mono_mb_emit_icall (mb, conv_to_icall (conv));
5369 mono_mb_emit_byte (mb, CEE_STIND_I);
5370 }
5371 else {
5372 /* set the src_ptr */
5373 mono_mb_emit_ldloc (mb, src_var);
5374 mono_mb_emit_ldloc (mb, index_var);
5375 mono_mb_emit_byte (mb, CEE_LDELEMA);
5376 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
5377 mono_mb_emit_byte (mb, CEE_STLOC_0);
5378
5379 /* set dst_ptr */
5380 mono_mb_emit_ldloc (mb, dest_ptr);
5381 mono_mb_emit_byte (mb, CEE_STLOC_1);
5382
5383 /* emit valuetype conversion code */
5384 emit_struct_conv (mb, eklass, FALSE);
5385 }
5386
5387 mono_mb_emit_add_to_local (mb, index_var, 1);
5388 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
5389
5390 mono_mb_emit_byte (mb, CEE_BR);
5391 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
5392
5393 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
5394
5395 if (eklass == mono_defaults.string_class) {
5396 /* Null terminate */
5397 mono_mb_emit_ldloc (mb, dest_ptr);
5398 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5399 mono_mb_emit_byte (mb, CEE_STIND_REF);
5400 }
5401
5402 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
5403 }
5404
5405 break;
5406
5407 case MARSHAL_ACTION_CONV_OUT:
5408 /* Character arrays are implicitly marshalled as [Out] */
5409 need_convert = (klass->element_class == mono_defaults.char_class) || (klass->element_class == mono_defaults.stringbuilder_class) || (t->attrs & PARAM_ATTRIBUTE_OUT);
5410 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
5411 m->piinfo, spec);
5412
5413 if (need_convert || need_free) {
5414 /* FIXME: Optimize blittable case */
5415 MonoClass *eklass;
5416 guint32 label1, label2, label3;
5417 int index_var, src_ptr, loc, esize;
5418
5419 eklass = klass->element_class;
5420 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
5421 esize = sizeof (gpointer);
5422 else
5423 esize = mono_class_native_size (eklass, NULL);
5424 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5425 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5426
5427 /* Check null */
5428 mono_mb_emit_ldarg (mb, argnum);
5429 if (t->byref)
5430 mono_mb_emit_byte (mb, CEE_LDIND_I);
5431 mono_mb_emit_byte (mb, CEE_BRFALSE);
5432 label1 = mb->pos;
5433 mono_mb_emit_i4 (mb, 0);
5434
5435 mono_mb_emit_ldloc (mb, conv_arg);
5436 mono_mb_emit_stloc (mb, src_ptr);
5437
5438 /* Emit marshalling loop */
5439 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5440 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5441 mono_mb_emit_stloc (mb, index_var);
5442 label2 = mb->pos;
5443 mono_mb_emit_ldloc (mb, index_var);
5444 mono_mb_emit_ldarg (mb, argnum);
5445 if (t->byref)
5446 mono_mb_emit_byte (mb, CEE_LDIND_I);
5447 mono_mb_emit_byte (mb, CEE_LDLEN);
5448 mono_mb_emit_byte (mb, CEE_BGE);
5449 label3 = mb->pos;
5450 mono_mb_emit_i4 (mb, 0);
5451
5452 /* Emit marshalling code */
5453
5454 if (eklass == mono_defaults.stringbuilder_class) {
5455 gboolean need_free2;
5456 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
5457
5458 g_assert (conv != -1);
5459
5460 /* dest */
5461 mono_mb_emit_ldarg (mb, argnum);
5462 if (t->byref)
5463 mono_mb_emit_byte (mb, CEE_LDIND_I);
5464 mono_mb_emit_ldloc (mb, index_var);
5465 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
5466
5467 /* src */
5468 mono_mb_emit_ldloc (mb, src_ptr);
5469 mono_mb_emit_byte (mb, CEE_LDIND_I);
5470
5471 mono_mb_emit_icall (mb, conv_to_icall (conv));
5472
5473 if (need_free) {
5474 /* src */
5475 mono_mb_emit_ldloc (mb, src_ptr);
5476 mono_mb_emit_byte (mb, CEE_LDIND_I);
5477
5478 mono_mb_emit_icall (mb, mono_marshal_free);
5479 }
5480 }
5481 else if (eklass == mono_defaults.string_class) {
5482 if (need_free) {
5483 /* src */
5484 mono_mb_emit_ldloc (mb, src_ptr);
5485 mono_mb_emit_byte (mb, CEE_LDIND_I);
5486
5487 mono_mb_emit_icall (mb, mono_marshal_free);
5488 }
5489 }
5490 else {
5491 if (need_convert) {
5492 /* set the src_ptr */
5493 mono_mb_emit_ldloc (mb, src_ptr);
5494 mono_mb_emit_byte (mb, CEE_STLOC_0);
5495
5496 /* set dst_ptr */
5497 mono_mb_emit_ldarg (mb, argnum);
5498 if (t->byref)
5499 mono_mb_emit_byte (mb, CEE_LDIND_I);
5500 mono_mb_emit_ldloc (mb, index_var);
5501 mono_mb_emit_byte (mb, CEE_LDELEMA);
5502 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, eklass));
5503 mono_mb_emit_byte (mb, CEE_STLOC_1);
5504
5505 /* emit valuetype conversion code */
5506 emit_struct_conv (mb, eklass, TRUE);
5507 }
5508
5509 if (need_free) {
5510 mono_mb_emit_ldloc (mb, src_ptr);
5511 mono_mb_emit_stloc (mb, loc);
5512 mono_mb_emit_ldloc (mb, loc);
5513
5514 emit_struct_free (mb, eklass, loc);
5515 }
5516 }
5517
5518 mono_mb_emit_add_to_local (mb, index_var, 1);
5519 mono_mb_emit_add_to_local (mb, src_ptr, esize);
5520
5521 mono_mb_emit_byte (mb, CEE_BR);
5522 mono_mb_emit_i4 (mb, label2 - (mb->pos + 4));
5523
5524 mono_mb_patch_addr (mb, label1, mb->pos - (label1 + 4));
5525 mono_mb_patch_addr (mb, label3, mb->pos - (label3 + 4));
5526 }
5527 break;
5528
5529 case MARSHAL_ACTION_CONV_RESULT:
5530 /* fixme: we need conversions here */
5531 mono_mb_emit_byte (mb, CEE_STLOC_3);
5532
5533 default:
5534 g_assert_not_reached ();
5535 }
5536
5537 return conv_arg;
5538 }
5539
5540 static int
5541 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
5542 MonoMarshalSpec *spec,
5543 int conv_arg, MonoType **conv_arg_type,
5544 MarshalAction action)
5545 {
5546 MonoMethodBuilder *mb = m->mb;
5547
5548 switch (action) {
5549 case MARSHAL_ACTION_CONV_IN: {
5550 MonoType *local_type;
5551 int variant_bool = 0;
5552 if (!t->byref)
5553 break;
5554 if (spec == NULL) {
5555 local_type = &mono_defaults.int32_class->byval_arg;
5556 } else {
5557 switch (spec->native) {
5558 case MONO_NATIVE_I1:
5559 local_type = &mono_defaults.byte_class->byval_arg;
5560 break;
5561 case MONO_NATIVE_VARIANTBOOL:
5562 local_type = &mono_defaults.int16_class->byval_arg;
5563 variant_bool = 1;
5564 break;
5565 default:
5566 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
5567 local_type = &mono_defaults.int32_class->byval_arg;
5568 break;
5569 }
5570 }
5571 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5572 conv_arg = mono_mb_add_local (mb, local_type);
5573 mono_mb_emit_ldarg (mb, argnum);
5574 mono_mb_emit_byte (mb, CEE_LDIND_I1);
5575 if (variant_bool)
5576 mono_mb_emit_byte (mb, CEE_NEG);
5577 mono_mb_emit_stloc (mb, conv_arg);
5578 break;
5579 }
5580
5581 case MARSHAL_ACTION_CONV_RESULT:
5582 /* maybe we need to make sure that it fits within 8 bits */
5583 mono_mb_emit_byte (mb, CEE_STLOC_3);
5584 break;
5585
5586 default:
5587 g_assert_not_reached ();
5588 }
5589
5590 return conv_arg;
5591 }
5592
5593 static int
5594 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
5595 MonoMarshalSpec *spec, int conv_arg,
5596 MonoType **conv_arg_type, MarshalAction action)
5597 {
5598 /* Ensure that we have marshalling info for this param */
5599 mono_marshal_load_type_info (mono_class_from_mono_type (t));
5600
5601 if (spec && spec->native == MONO_NATIVE_CUSTOM)
5602 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
5603
5604 if (spec && spec->native == MONO_NATIVE_ASANY)
5605 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
5606
5607 switch (t->type) {
5608 case MONO_TYPE_VALUETYPE:
5609 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
5610 case MONO_TYPE_STRING:
5611 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
5612 case MONO_TYPE_CLASS:
5613 case MONO_TYPE_OBJECT:
5614 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
5615 case MONO_TYPE_ARRAY:
5616 case MONO_TYPE_SZARRAY:
5617 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
5618 case MONO_TYPE_BOOLEAN:
5619 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
5620 }
5621
5622 return conv_arg;
5623 }
5624
5625 /**
5626 * mono_marshal_get_native_wrapper:
5627 * @method: The MonoMethod to wrap.
5628 *
5629 * generates IL code for the pinvoke wrapper (the generated method
5630 * calls the unmanaged code in piinfo->addr)
5631 */
5632 MonoMethod *
5633 mono_marshal_get_native_wrapper (MonoMethod *method)
5634 {
5635 EmitMarshalContext m;
5636 MonoMethodSignature *sig, *csig;
5637 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
5638 MonoMethodBuilder *mb;
5639 MonoMarshalSpec **mspecs;
5640 MonoMethod *res;
5641 GHashTable *cache;
5642 MonoClass *klass;
5643 gboolean pinvoke = FALSE;
5644 int i, argnum, *tmp_locals;
5645 int type;
5646 const char *exc_class = "MissingMethodException";
5647 const char *exc_arg = NULL;
5648
5649 g_assert (method != NULL);
5650 g_assert (method->signature->pinvoke);
5651
5652 cache = method->klass->image->native_wrapper_cache;
5653 if ((res = mono_marshal_find_in_cache (cache, method)))
5654 return res;
5655
5656 sig = method->signature;
5657
5658 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
5659 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
5660 pinvoke = TRUE;
5661
5662 if (!piinfo->addr) {
5663 if (pinvoke)
5664 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
5665 else
5666 piinfo->addr = mono_lookup_internal_call (method);
5667 }
5668
5669 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5670
5671 mb->method->save_lmf = 1;
5672
5673 if (!piinfo->addr) {
5674 mono_mb_emit_exception (mb, exc_class, exc_arg);
5675 csig = mono_metadata_signature_dup (sig);
5676 csig->pinvoke = 0;
5677 res = mono_mb_create_and_cache (cache, method,
5678 mb, csig, csig->param_count + 16);
5679 mono_mb_free (mb);
5680 return res;
5681 }
5682
5683 m.mb = mb;
5684 m.piinfo = piinfo;
5685
5686 /* internal calls: we simply push all arguments and call the method (no conversions) */
5687 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
5688
5689 /* hack - string constructors returns a value */
5690 if (method->string_ctor) {
5691 csig = mono_metadata_signature_dup (sig);
5692 csig->ret = &mono_defaults.string_class->byval_arg;
5693 } else
5694 csig = sig;
5695
5696 if (sig->hasthis)
5697 mono_mb_emit_byte (mb, CEE_LDARG_0);
5698
5699 for (i = 0; i < sig->param_count; i++)
5700 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5701
5702 g_assert (piinfo->addr);
5703 mono_mb_emit_native_call (mb, csig, piinfo->addr);
5704 emit_thread_interrupt_checkpoint (mb);
5705 mono_mb_emit_byte (mb, CEE_RET);
5706
5707 csig = mono_metadata_signature_dup (csig);
5708 csig->pinvoke = 0;
5709 res = mono_mb_create_and_cache (cache, method,
5710 mb, csig, csig->param_count + 16);
5711 mono_mb_free (mb);
5712 return res;
5713 }
5714
5715 g_assert (pinvoke);
5716
5717 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
5718 mono_method_get_marshal_info (method, mspecs);
5719
5720 /* pinvoke: we need to convert the arguments if necessary */
5721
5722 /* we copy the signature, so that we can set pinvoke to 0 */
5723 csig = mono_metadata_signature_dup (sig);
5724 csig->pinvoke = 1;
5725
5726 /* we allocate local for use with emit_struct_conv() */
5727 /* allocate local 0 (pointer) src_ptr */
5728 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5729 /* allocate local 1 (pointer) dst_ptr */
5730 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5731 /* allocate local 2 (boolean) delete_old */
5732 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5733
5734 /* delete_old = FALSE */
5735 mono_mb_emit_icon (mb, 0);
5736 mono_mb_emit_byte (mb, CEE_STLOC_2);
5737
5738 if (!MONO_TYPE_IS_VOID(sig->ret)) {
5739 /* allocate local 3 to store the return value */
5740 mono_mb_add_local (mb, sig->ret);
5741 }
5742
5743 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
5744 /* Return type custom marshaling */
5745 /*
5746 * Since we can't determine the return type of the unmanaged function,
5747 * we assume it returns a pointer, and pass that pointer to
5748 * MarshalNativeToManaged.
5749 */
5750 csig->ret = &mono_defaults.int_class->byval_arg;
5751 }
5752
5753 /* we first do all conversions */
5754 tmp_locals = alloca (sizeof (int) * sig->param_count);
5755 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
5756
5757 for (i = 0; i < sig->param_count; i ++) {
5758 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
5759 }
5760
5761 /* push all arguments */
5762
5763 if (sig->hasthis)
5764 mono_mb_emit_byte (mb, CEE_LDARG_0);
5765
5766 for (i = 0; i < sig->param_count; i++) {
5767 MonoType *t = sig->params [i];
5768 MonoMarshalSpec *spec = mspecs [i + 1];
5769
5770 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY)))
5771 emit_marshal (&m, i + sig->hasthis, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
5772 else {
5773 argnum = i + sig->hasthis;
5774
5775 switch (t->type) {
5776 case MONO_TYPE_BOOLEAN:
5777 if (t->byref) {
5778 g_assert (tmp_locals [i]);
5779 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
5780 } else
5781 mono_mb_emit_ldarg (mb, argnum);
5782 break;
5783 case MONO_TYPE_I1:
5784 case MONO_TYPE_U1:
5785 case MONO_TYPE_I2:
5786 case MONO_TYPE_U2:
5787 case MONO_TYPE_I4:
5788 case MONO_TYPE_U4:
5789 case MONO_TYPE_I:
5790 case MONO_TYPE_U:
5791 case MONO_TYPE_PTR:
5792 case MONO_TYPE_R4:
5793 case MONO_TYPE_R8:
5794 case MONO_TYPE_I8:
5795 case MONO_TYPE_U8:
5796 mono_mb_emit_ldarg (mb, argnum);
5797 break;
5798 case MONO_TYPE_VALUETYPE:
5799 emit_marshal (&m, i + sig->hasthis, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
5800 break;
5801 case MONO_TYPE_STRING:
5802 case MONO_TYPE_CLASS:
5803 case MONO_TYPE_OBJECT:
5804 case MONO_TYPE_ARRAY:
5805 case MONO_TYPE_SZARRAY:
5806 g_assert (tmp_locals [i]);
5807 if (t->byref)
5808 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
5809 else
5810 mono_mb_emit_ldloc (mb, tmp_locals [i]);
5811 break;
5812 case MONO_TYPE_CHAR:
5813 /* fixme: dont know how to marshal that. We cant simply
5814 * convert it to a one byte UTF8 character, because an
5815 * unicode character may need more that one byte in UTF8 */
5816 mono_mb_emit_ldarg (mb, argnum);
5817 break;
5818 case MONO_TYPE_TYPEDBYREF:
5819 case MONO_TYPE_FNPTR:
5820 default:
5821 g_warning ("type 0x%02x unknown", t->type);
5822 g_assert_not_reached ();
5823 }
5824 }
5825 }
5826
5827 /* call the native method */
5828 mono_mb_emit_native_call (mb, csig, piinfo->addr);
5829
5830 /* Set LastError if needed */
5831 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
5832 MonoMethodSignature *lasterr_sig;
5833
5834 lasterr_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
5835 lasterr_sig->ret = &mono_defaults.void_class->byval_arg;
5836 lasterr_sig->pinvoke = 1;
5837
5838 mono_mb_emit_native_call (mb, lasterr_sig, mono_marshal_set_last_error);
5839 }
5840
5841 /* convert the result */
5842 if (!sig->ret->byref) {
5843 MonoMarshalSpec *spec = mspecs [0];
5844 type = sig->ret->type;
5845
5846 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
5847 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
5848 } else {
5849
5850 handle_enum:
5851 switch (type) {
5852 case MONO_TYPE_VOID:
5853 break;
5854 case MONO_TYPE_I1:
5855 case MONO_TYPE_U1:
5856 case MONO_TYPE_I2:
5857 case MONO_TYPE_U2:
5858 case MONO_TYPE_I4:
5859 case MONO_TYPE_U4:
5860 case MONO_TYPE_I:
5861 case MONO_TYPE_U:
5862 case MONO_TYPE_PTR:
5863 case MONO_TYPE_R4:
5864 case MONO_TYPE_R8:
5865 case MONO_TYPE_I8:
5866 case MONO_TYPE_U8:
5867 /* no conversions necessary */
5868 mono_mb_emit_byte (mb, CEE_STLOC_3);
5869 break;
5870 case MONO_TYPE_VALUETYPE:
5871 klass = sig->ret->data.klass;
5872 if (klass->enumtype) {
5873 type = sig->ret->data.klass->enum_basetype->type;
5874 goto handle_enum;
5875 }
5876 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
5877 break;
5878 case MONO_TYPE_STRING:
5879 case MONO_TYPE_CLASS:
5880 case MONO_TYPE_OBJECT:
5881 case MONO_TYPE_BOOLEAN:
5882 case MONO_TYPE_ARRAY:
5883 case MONO_TYPE_SZARRAY:
5884 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
5885 break;
5886 case MONO_TYPE_CHAR:
5887 /* fixme: we need conversions here */
5888 mono_mb_emit_byte (mb, CEE_STLOC_3);
5889 break;
5890 case MONO_TYPE_TYPEDBYREF:
5891 case MONO_TYPE_FNPTR:
5892 default:
5893 g_warning ("return type 0x%02x unknown", sig->ret->type);
5894 g_assert_not_reached ();
5895 }
5896 }
5897 } else {
5898 mono_mb_emit_byte (mb, CEE_STLOC_3);
5899 }
5900
5901 /*
5902 * Need to call this after converting the result since MONO_VTADDR needs
5903 * to be adjacent to the call instruction.
5904 */
5905 emit_thread_interrupt_checkpoint (mb);
5906
5907 /* we need to convert byref arguments back and free string arrays */
5908 for (i = 0; i < sig->param_count; i++) {
5909 MonoType *t = sig->params [i];
5910 MonoMarshalSpec *spec = mspecs [i + 1];
5911
5912 argnum = i + sig->hasthis;
5913
5914 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
5915 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
5916 continue;
5917 }
5918
5919 switch (t->type) {
5920 case MONO_TYPE_STRING:
5921 case MONO_TYPE_VALUETYPE:
5922 case MONO_TYPE_CLASS:
5923 case MONO_TYPE_OBJECT:
5924 case MONO_TYPE_SZARRAY:
5925 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
5926 break;
5927 case MONO_TYPE_BOOLEAN:
5928 if (!t->byref)
5929 continue;
5930 mono_mb_emit_ldarg (mb, argnum);
5931 mono_mb_emit_ldloc (mb, tmp_locals [i]);
5932 if (mspecs [i + 1] != NULL && mspecs [i + 1]->native == MONO_NATIVE_VARIANTBOOL)
5933 mono_mb_emit_byte (mb, CEE_NEG);
5934 mono_mb_emit_byte (mb, CEE_STIND_I1);
5935 }
5936 }
5937
5938 if (!MONO_TYPE_IS_VOID(sig->ret))
5939 mono_mb_emit_byte (mb, CEE_LDLOC_3);
5940
5941 mono_mb_emit_byte (mb, CEE_RET);
5942
5943 csig = mono_metadata_signature_dup (sig);
5944 csig->pinvoke = 0;
5945 res = mono_mb_create_and_cache (cache, method,
5946 mb, csig, csig->param_count + 16);
5947 mono_mb_free (mb);
5948
5949 for (i = sig->param_count; i >= 0; i--)
5950 g_free (mspecs [i]);
5951 g_free (mspecs);
5952
5953 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
5954
5955 return res;
5956 }
5957
5958 void
5959 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
5960
5961 static MonoReflectionType *
5962 type_from_handle (MonoType *handle)
5963 {
5964 MonoDomain *domain = mono_domain_get ();
5965 MonoClass *klass = mono_class_from_mono_type (handle);
5966
5967 MONO_ARCH_SAVE_REGS;
5968
5969 mono_class_init (klass);
5970 return mono_type_get_object (domain, handle);
5971 }
5972
5973 /*
5974 * mono_marshal_get_isinst:
5975 * @klass: the type of the field
5976 *
5977 * This method generates a function which can be used to check if an object is
5978 * an instance of the given type, icluding the case where the object is a proxy.
5979 * The generated function has the following signature:
5980 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
5981 */
5982 MonoMethod *
5983 mono_marshal_get_isinst (MonoClass *klass)
5984 {
5985 static MonoMethodSignature *isint_sig = NULL;
5986 static GHashTable *isinst_hash = NULL;
5987 MonoMethod *res;
5988 int pos_was_ok, pos_failed, pos_end, pos_end2;
5989 char *name;
5990 MonoMethodBuilder *mb;
5991
5992 EnterCriticalSection (&marshal_mutex);
5993 if (!isinst_hash)
5994 isinst_hash = g_hash_table_new (NULL, NULL);
5995
5996 res = g_hash_table_lookup (isinst_hash, klass);
5997 LeaveCriticalSection (&marshal_mutex);
5998 if (res)
5999 return res;
6000
6001 if (!isint_sig) {
6002 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
6003 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
6004 isint_sig->ret = &mono_defaults.object_class->byval_arg;
6005 isint_sig->pinvoke = 0;
6006 }
6007
6008 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
6009 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
6010 g_free (name);
6011
6012 mb->method->save_lmf = 1;
6013
6014 /* check if the object is a proxy that needs special cast */
6015 mono_mb_emit_ldarg (mb, 0);
6016 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6017 mono_mb_emit_byte (mb, CEE_MONO_CISINST);
6018 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
6019
6020 /* The result of MONO_ISINST can be:
6021 0) the type check succeeded
6022 1) the type check did not succeed
6023 2) a CanCastTo call is needed */
6024
6025 mono_mb_emit_byte (mb, CEE_DUP);
6026 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
6027
6028 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
6029 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
6030
6031 /* get the real proxy from the transparent proxy*/
6032
6033 mono_mb_emit_ldarg (mb, 0);
6034 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
6035 pos_end = mono_mb_emit_branch (mb, CEE_BR);
6036
6037 /* fail */
6038
6039 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
6040 mono_mb_emit_byte (mb, CEE_LDNULL);
6041 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
6042
6043 /* success */
6044
6045 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
6046 mono_mb_emit_byte (mb, CEE_POP);
6047 mono_mb_emit_ldarg (mb, 0);
6048
6049 /* the end */
6050
6051 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
6052 mono_mb_patch_addr (mb, pos_end2, mb->pos - (pos_end2 + 4));
6053 mono_mb_emit_byte (mb, CEE_RET);
6054
6055 res = mono_mb_create_and_cache (isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
6056 mono_mb_free (mb);
6057
6058 return res;
6059 }
6060
6061 /*
6062 * mono_marshal_get_castclass:
6063 * @klass: the type of the field
6064 *
6065 * This method generates a function which can be used to cast an object to
6066 * an instance of the given type, icluding the case where the object is a proxy.
6067 * The generated function has the following signature:
6068 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
6069 */
6070 MonoMethod *
6071 mono_marshal_get_castclass (MonoClass *klass)
6072 {
6073 static MonoMethodSignature *castclass_sig = NULL;
6074 static GHashTable *castclass_hash = NULL;
6075 MonoMethod *res;
6076 int pos_was_ok, pos_was_ok2;
6077 char *name;
6078 MonoMethodBuilder *mb;
6079
6080 EnterCriticalSection (&marshal_mutex);
6081 if (!castclass_hash)
6082 castclass_hash = g_hash_table_new (NULL, NULL);
6083
6084 res = g_hash_table_lookup (castclass_hash, klass);
6085 LeaveCriticalSection (&marshal_mutex);
6086 if (res)
6087 return res;
6088
6089 if (!castclass_sig) {
6090 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
6091 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
6092 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
6093 castclass_sig->pinvoke = 0;
6094 }
6095
6096 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
6097 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
6098 g_free (name);
6099
6100 mb->method->save_lmf = 1;
6101
6102 /* check if the object is a proxy that needs special cast */
6103 mono_mb_emit_ldarg (mb, 0);
6104 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6105 mono_mb_emit_byte (mb, CEE_MONO_CCASTCLASS);
6106 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, klass));
6107
6108 /* The result of MONO_ISINST can be:
6109 0) the cast is valid
6110 1) cast of unknown proxy type
6111 or an exception if the cast is is invalid
6112 */
6113
6114 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
6115
6116 /* get the real proxy from the transparent proxy*/
6117
6118 mono_mb_emit_ldarg (mb, 0);
6119 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
6120 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6121
6122 /* fail */
6123 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
6124
6125 /* success */
6126 mono_mb_patch_addr (mb, pos_was_ok, mb->pos - (pos_was_ok + 4));
6127 mono_mb_patch_addr (mb, pos_was_ok2, mb->pos - (pos_was_ok2 + 4));
6128 mono_mb_emit_ldarg (mb, 0);
6129
6130 /* the end */
6131 mono_mb_emit_byte (mb, CEE_RET);
6132
6133 res = mono_mb_create_and_cache (castclass_hash, klass, mb, castclass_sig, castclass_sig->param_count + 16);
6134 mono_mb_free (mb);
6135
6136 return res;
6137 }
6138
6139 MonoMethod *
6140 mono_marshal_get_proxy_cancast (MonoClass *klass)
6141 {
6142 static MonoMethodSignature *from_handle_sig = NULL;
6143 static MonoMethodSignature *upgrade_proxy_sig = NULL;
6144 static MonoMethodSignature *isint_sig = NULL;
6145 static GHashTable *proxy_isinst_hash = NULL;
6146 MonoMethod *res;
6147 int pos_failed, pos_end;
6148 char *name;
6149 MonoMethod *can_cast_to;
6150 MonoMethodDesc *desc;
6151 MonoMethodBuilder *mb;
6152
6153 EnterCriticalSection (&marshal_mutex);
6154 if (!proxy_isinst_hash)
6155 proxy_isinst_hash = g_hash_table_new (NULL, NULL);
6156
6157 res = g_hash_table_lookup (proxy_isinst_hash, klass);
6158 LeaveCriticalSection (&marshal_mutex);
6159 if (res)
6160 return res;
6161
6162 if (!isint_sig) {
6163 upgrade_proxy_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
6164 upgrade_proxy_sig->params [0] = &mono_defaults.object_class->byval_arg;
6165 upgrade_proxy_sig->params [1] = &mono_defaults.object_class->byval_arg;
6166 upgrade_proxy_sig->ret = &mono_defaults.void_class->byval_arg;
6167 upgrade_proxy_sig->pinvoke = 1;
6168
6169 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
6170 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
6171 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
6172
6173 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
6174 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
6175 isint_sig->ret = &mono_defaults.object_class->byval_arg;
6176 isint_sig->pinvoke = 0;
6177 }
6178
6179 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
6180 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
6181 g_free (name);
6182
6183 mb->method->save_lmf = 1;
6184
6185 /* get the real proxy from the transparent proxy*/
6186 mono_mb_emit_ldarg (mb, 0);
6187 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
6188 mono_mb_emit_byte (mb, CEE_LDIND_I);
6189
6190 /* get the refletion type from the type handle */
6191 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6192 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
6193 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
6194 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
6195
6196 mono_mb_emit_ldarg (mb, 0);
6197
6198 /* make the call to CanCastTo (type, ob) */
6199 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
6200 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
6201 g_assert (can_cast_to);
6202 mono_method_desc_free (desc);
6203 mono_mb_emit_byte (mb, CEE_CALLVIRT);
6204 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, can_cast_to));
6205
6206
6207 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
6208
6209 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
6210 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6211 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
6212 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &klass->byval_arg));
6213 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
6214 mono_mb_emit_ldarg (mb, 0);
6215
6216 mono_mb_emit_native_call (mb, upgrade_proxy_sig, mono_upgrade_remote_class_wrapper);
6217 emit_thread_interrupt_checkpoint (mb);
6218
6219 mono_mb_emit_ldarg (mb, 0);
6220 pos_end = mono_mb_emit_branch (mb, CEE_BR);
6221
6222 /* fail */
6223
6224 mono_mb_patch_addr (mb, pos_failed, mb->pos - (pos_failed + 4));
6225 mono_mb_emit_byte (mb, CEE_LDNULL);
6226
6227 /* the end */
6228
6229 mono_mb_patch_addr (mb, pos_end, mb->pos - (pos_end + 4));
6230 mono_mb_emit_byte (mb, CEE_RET);
6231
6232 res = mono_mb_create_and_cache (proxy_isinst_hash, klass, mb, isint_sig, isint_sig->param_count + 16);
6233 mono_mb_free (mb);
6234
6235 return res;
6236 }
6237
6238 void
6239 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
6240 {
6241 MonoClass *klass;
6242 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
6243 klass = mono_class_from_mono_type (rtype->type);
6244 mono_upgrade_remote_class (domain, tproxy->remote_class, klass);
6245 ((MonoObject*)tproxy)->vtable = mono_remote_class_vtable (domain, tproxy->remote_class, tproxy->rp);
6246 }
6247
6248 /**
6249 * mono_marshal_get_struct_to_ptr:
6250 * @klass:
6251 *
6252 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
6253 */
6254 MonoMethod *
6255 mono_marshal_get_struct_to_ptr (MonoClass *klass)
6256 {
6257 MonoMethodBuilder *mb;
6258 static MonoMethod *stoptr = NULL;
6259 MonoMethod *res;
6260
6261 g_assert (klass != NULL);
6262
6263 mono_marshal_load_type_info (klass);
6264
6265 if (klass->marshal_info->str_to_ptr)
6266 return klass->marshal_info->str_to_ptr;
6267
6268 if (!stoptr)
6269 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
6270 g_assert (stoptr);
6271
6272 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
6273
6274 if (klass->blittable) {
6275 mono_mb_emit_byte (mb, CEE_LDARG_1);
6276 mono_mb_emit_byte (mb, CEE_LDARG_0);
6277 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6278 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
6279 mono_mb_emit_byte (mb, CEE_PREFIX1);
6280 mono_mb_emit_byte (mb, CEE_CPBLK);
6281 } else {
6282
6283 /* allocate local 0 (pointer) src_ptr */
6284 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6285 /* allocate local 1 (pointer) dst_ptr */
6286 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6287 /* allocate local 2 (boolean) delete_old */
6288 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6289 mono_mb_emit_byte (mb, CEE_LDARG_2);
6290 mono_mb_emit_byte (mb, CEE_STLOC_2);
6291
6292 /* initialize src_ptr to point to the start of object data */
6293 mono_mb_emit_byte (mb, CEE_LDARG_0);
6294 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6295 mono_mb_emit_byte (mb, CEE_STLOC_0);
6296
6297 /* initialize dst_ptr */
6298 mono_mb_emit_byte (mb, CEE_LDARG_1);
6299 mono_mb_emit_byte (mb, CEE_STLOC_1);
6300
6301 emit_struct_conv (mb, klass, FALSE);
6302 }
6303
6304 mono_mb_emit_byte (mb, CEE_RET);
6305
6306 res = mono_mb_create_method (mb, stoptr->signature, 0);
6307 mono_mb_free (mb);
6308
6309 klass->marshal_info->str_to_ptr = res;
6310 return res;
6311 }
6312
6313 /**
6314 * mono_marshal_get_ptr_to_struct:
6315 * @klass:
6316 *
6317 * generates IL code for PtrToStructure (IntPtr src, object structure)
6318 */
6319 MonoMethod *
6320 mono_marshal_get_ptr_to_struct (MonoClass *klass)
6321 {
6322 MonoMethodBuilder *mb;
6323 static MonoMethod *ptostr = NULL;
6324 MonoMethod *res;
6325
6326 g_assert (klass != NULL);
6327
6328 mono_marshal_load_type_info (klass);
6329
6330 if (klass->marshal_info->ptr_to_str)
6331 return klass->marshal_info->ptr_to_str;
6332
6333 if (!ptostr)
6334 ptostr = mono_class_get_method_from_name (mono_defaults.marshal_class, "PtrToStructure", 2);
6335 g_assert (ptostr);
6336
6337 mb = mono_mb_new (klass, ptostr->name, MONO_WRAPPER_UNKNOWN);
6338
6339 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable) {
6340 mono_mb_emit_byte (mb, CEE_LDARG_1);
6341 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6342 mono_mb_emit_byte (mb, CEE_LDARG_0);
6343 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
6344 mono_mb_emit_byte (mb, CEE_PREFIX1);
6345 mono_mb_emit_byte (mb, CEE_CPBLK);
6346 } else {
6347
6348 /* allocate local 0 (pointer) src_ptr */
6349 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6350 /* allocate local 1 (pointer) dst_ptr */
6351 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6352
6353 /* initialize src_ptr to point to the start of object data */
6354 mono_mb_emit_byte (mb, CEE_LDARG_0);
6355 mono_mb_emit_byte (mb, CEE_STLOC_0);
6356
6357 /* initialize dst_ptr */
6358 mono_mb_emit_byte (mb, CEE_LDARG_1);
6359 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6360 mono_mb_emit_byte (mb, CEE_STLOC_1);
6361
6362 emit_struct_conv (mb, klass, TRUE);
6363 }
6364
6365 mono_mb_emit_byte (mb, CEE_RET);
6366
6367 res = mono_mb_create_method (mb, ptostr->signature, 0);
6368 mono_mb_free (mb);
6369
6370 klass->marshal_info->ptr_to_str = res;
6371 return res;
6372 }
6373
6374 /*
6375 * generates IL code for the synchronized wrapper: the generated method
6376 * calls METHOD while locking 'this' or the parent type.
6377 */
6378 MonoMethod *
6379 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
6380 {
6381 static MonoMethodSignature *from_handle_sig = NULL;
6382 static MonoMethod *enter_method, *exit_method;
6383 MonoMethodSignature *sig;
6384 MonoExceptionClause *clause;
6385 MonoMethodHeader *header;
6386 MonoMethodBuilder *mb;
6387 MonoMethod *res;
6388 GHashTable *cache;
6389 int i, pos, this_local, ret_local = 0;
6390
6391 g_assert (method);
6392
6393 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
6394 return method;
6395
6396 cache = method->klass->image->synchronized_cache;
6397 if ((res = mono_marshal_find_in_cache (cache, method)))
6398 return res;
6399
6400 sig = signature_no_pinvoke (method->signature);
6401
6402 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
6403
6404 /* result */
6405 if (!MONO_TYPE_IS_VOID (sig->ret))
6406 ret_local = mono_mb_add_local (mb, sig->ret);
6407
6408 /* this */
6409 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6410
6411 clause = g_new0 (MonoExceptionClause, 1);
6412 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
6413
6414 if (!enter_method) {
6415 MonoMethodDesc *desc;
6416
6417 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
6418 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
6419 g_assert (enter_method);
6420 mono_method_desc_free (desc);
6421 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
6422 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
6423 g_assert (exit_method);
6424 mono_method_desc_free (desc);
6425
6426 /*
6427 * GetTypeFromHandle isn't called as a managed method because it has
6428 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
6429 * transformed into something else by the JIT.
6430 */
6431 from_handle_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
6432 from_handle_sig->params [0] = &mono_defaults.object_class->byval_arg;
6433 from_handle_sig->ret = &mono_defaults.object_class->byval_arg;
6434 }
6435
6436 /* Push this or the type object */
6437 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
6438 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6439 mono_mb_emit_byte (mb, CEE_MONO_LDPTR);
6440 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, &method->klass->byval_arg));
6441 mono_mb_emit_native_call (mb, from_handle_sig, type_from_handle);
6442 }
6443 else
6444 mono_mb_emit_ldarg (mb, 0);
6445 mono_mb_emit_stloc (mb, this_local);
6446
6447 /* Call Monitor::Enter() */
6448 mono_mb_emit_ldloc (mb, this_local);
6449 mono_mb_emit_managed_call (mb, enter_method, NULL);
6450
6451 clause->try_offset = mb->pos;
6452
6453 /* Call the method */
6454 if (sig->hasthis)
6455 mono_mb_emit_ldarg (mb, 0);
6456 for (i = 0; i < sig->param_count; i++)
6457 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
6458
6459 /* this is needed to avoid recursion */
6460 mono_mb_emit_byte (mb, CEE_PREFIX1);
6461 mono_mb_emit_byte (mb, CEE_LDFTN);
6462 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, method));
6463 mono_mb_emit_calli (mb, method->signature);
6464
6465 if (!MONO_TYPE_IS_VOID (sig->ret))
6466 mono_mb_emit_stloc (mb, ret_local);
6467
6468 mono_mb_emit_byte (mb, CEE_LEAVE);
6469 pos = mb->pos;
6470 mono_mb_emit_i4 (mb, 0);
6471
6472 clause->try_len = mb->pos - clause->try_offset;
6473 clause->handler_offset = mb->pos;
6474
6475 /* Call Monitor::Exit() */
6476 mono_mb_emit_ldloc (mb, this_local);
6477 /* mono_mb_emit_native_call (mb, exit_sig, mono_monitor_exit); */
6478 mono_mb_emit_managed_call (mb, exit_method, NULL);
6479 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
6480
6481 clause->handler_len = mb->pos - clause->handler_offset;
6482
6483 mono_mb_patch_addr (mb, pos, mb->pos - (pos + 4));
6484 if (!MONO_TYPE_IS_VOID (sig->ret))
6485 mono_mb_emit_ldloc (mb, ret_local);
6486 mono_mb_emit_byte (mb, CEE_RET);
6487
6488 res = mono_mb_create_and_cache (cache, method,
6489 mb, sig, sig->param_count + 16);
6490 mono_mb_free (mb);
6491
6492 header = ((MonoMethodNormal *)res)->header;
6493 header->num_clauses = 1;
6494 header->clauses = clause;
6495
6496 return res;
6497 }
6498
6499
6500 /*
6501 * the returned method calls 'method' unboxing the this argument
6502 */
6503 MonoMethod *
6504 mono_marshal_get_unbox_wrapper (MonoMethod *method)
6505 {
6506 MonoMethodSignature *sig = method->signature;
6507 int i;
6508 MonoMethodBuilder *mb;
6509 MonoMethod *res;
6510 GHashTable *cache;
6511
6512 cache = method->klass->image->unbox_wrapper_cache;
6513 if ((res = mono_marshal_find_in_cache (cache, method)))
6514 return res;
6515
6516 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
6517
6518 g_assert (sig->hasthis);
6519
6520 mono_mb_emit_ldarg (mb, 0);
6521 mono_mb_emit_icon (mb, sizeof (MonoObject));
6522 mono_mb_emit_byte (mb, CEE_ADD);
6523 for (i = 0; i < sig->param_count; ++i)
6524 mono_mb_emit_ldarg (mb, i + 1);
6525 mono_mb_emit_managed_call (mb, method, NULL);
6526 mono_mb_emit_byte (mb, CEE_RET);
6527
6528 res = mono_mb_create_and_cache (cache, method,
6529 mb, sig, sig->param_count + 16);
6530 mono_mb_free (mb);
6531
6532 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
6533
6534 return res;
6535 }
6536
6537 MonoMethod*
6538 mono_marshal_get_stelemref ()
6539 {
6540 static MonoMethod* ret = NULL;
6541 MonoMethodSignature *sig;
6542 MonoMethodBuilder *mb;
6543
6544 guint32 b1, b2, b3, b4;
6545 guint32 copy_pos;
6546 int aklass, vklass;
6547 int array_slot_addr;
6548
6549 if (ret)
6550 return ret;
6551
6552 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
6553
6554
6555 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
6556
6557 /* void stelemref (void* array, int idx, void* value) */
6558 sig->ret = &mono_defaults.void_class->byval_arg;
6559 sig->params [0] = &mono_defaults.object_class->byval_arg;
6560 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
6561 sig->params [2] = &mono_defaults.object_class->byval_arg;
6562
6563 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6564 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6565 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
6566
6567 /*
6568 the method:
6569 <ldelema (bound check)>
6570 if (!value)
6571 goto store;
6572
6573 aklass = array->vtable->klass->element_class;
6574 vklass = value->vtable->klass;
6575
6576 if (vklass->idepth < aklass->idepth)
6577 goto long;
6578
6579 if (vklass->supertypes [aklass->idepth - 1] != aklass)
6580 goto long;
6581
6582 store:
6583 *array_slot_addr = value;
6584 return;
6585
6586 long:
6587 if (mono_object_isinst (value, aklass))
6588 goto store;
6589
6590 throw new ArrayTypeMismatchException ();
6591 */
6592
6593 /* ldelema (implicit bound check) */
6594 mono_mb_emit_ldarg (mb, 0);
6595 mono_mb_emit_ldarg (mb, 1);
6596 mono_mb_emit_byte (mb, CEE_LDELEMA);
6597 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.object_class));
6598 mono_mb_emit_stloc (mb, array_slot_addr);
6599
6600 /* if (!value) goto do_store */
6601 mono_mb_emit_ldarg (mb, 2);
6602 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6603
6604 /* aklass = array->vtable->klass->element_class */
6605 mono_mb_emit_ldarg (mb, 0);
6606 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
6607 mono_mb_emit_byte (mb, CEE_LDIND_I);
6608 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
6609 mono_mb_emit_byte (mb, CEE_LDIND_I);
6610 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
6611 mono_mb_emit_byte (mb, CEE_LDIND_I);
6612 mono_mb_emit_stloc (mb, aklass);
6613
6614 /* vklass = value->vtable->klass */
6615 mono_mb_emit_ldarg (mb, 2);
6616 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
6617 mono_mb_emit_byte (mb, CEE_LDIND_I);
6618 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
6619 mono_mb_emit_byte (mb, CEE_LDIND_I);
6620 mono_mb_emit_stloc (mb, vklass);
6621
6622 /* if (vklass->idepth < aklass->idepth) goto failue */
6623 mono_mb_emit_ldloc (mb, vklass);
6624 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
6625 mono_mb_emit_byte (mb, CEE_LDIND_U2);
6626
6627 mono_mb_emit_ldloc (mb, aklass);
6628 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
6629 mono_mb_emit_byte (mb, CEE_LDIND_U2);
6630
6631 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
6632
6633 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
6634 mono_mb_emit_ldloc (mb, vklass);
6635 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
6636 mono_mb_emit_byte (mb, CEE_LDIND_I);
6637
6638 mono_mb_emit_ldloc (mb, aklass);
6639 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
6640 mono_mb_emit_byte (mb, CEE_LDIND_U2);
6641 mono_mb_emit_icon (mb, 1);
6642 mono_mb_emit_byte (mb, CEE_SUB);
6643 mono_mb_emit_icon (mb, sizeof (void*));
6644 mono_mb_emit_byte (mb, CEE_MUL);
6645 mono_mb_emit_byte (mb, CEE_ADD);
6646 mono_mb_emit_byte (mb, CEE_LDIND_I);
6647
6648 mono_mb_emit_ldloc (mb, aklass);
6649
6650 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
6651
6652 copy_pos = mb->pos;
6653 /* do_store */
6654 mono_mb_patch_addr (mb, b1, mb->pos - (b1 + 4));
6655 mono_mb_emit_ldloc (mb, array_slot_addr);
6656 mono_mb_emit_ldarg (mb, 2);
6657 mono_mb_emit_byte (mb, CEE_STIND_REF);
6658
6659 mono_mb_emit_byte (mb, CEE_RET);
6660
6661 /* the hard way */
6662 mono_mb_patch_addr (mb, b2, mb->pos - (b2 + 4));
6663 mono_mb_patch_addr (mb, b3, mb->pos - (b3 + 4));
6664
6665 mono_mb_emit_ldarg (mb, 2);
6666 mono_mb_emit_ldloc (mb, aklass);
6667 mono_mb_emit_icall (mb, mono_object_isinst);
6668
6669 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6670 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
6671 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
6672
6673 mono_mb_emit_byte (mb, CEE_RET);
6674 ret = mono_mb_create_method (mb, sig, 4);
6675 mono_mb_free (mb);
6676 return ret;
6677 }
6678
6679 void*
6680 mono_marshal_alloc (gulong size)
6681 {
6682 gpointer res;
6683
6684 #ifdef PLATFORM_WIN32
6685 res = CoTaskMemAlloc (size);
6686 #else
6687 res = g_try_malloc ((gulong)size);
6688 if (!res)
6689 mono_gc_out_of_memory ((gulong)size);
6690 #endif
6691 return res;
6692 }
6693
6694 void
6695 mono_marshal_free (gpointer ptr)
6696 {
6697 #ifdef PLATFORM_WIN32
6698 CoTaskMemFree (ptr);
6699 #else
6700 g_free (ptr);
6701 #endif
6702 }
6703
6704 void
6705 mono_marshal_free_array (gpointer *ptr, int size)
6706 {
6707 int i;
6708
6709 if (!ptr)
6710 return;
6711
6712 for (i = 0; i < size; i++)
6713 if (ptr [i])
6714 g_free (ptr [i]);
6715 }
6716
6717 void *
6718 mono_marshal_realloc (gpointer ptr, gpointer size)
6719 {
6720 MONO_ARCH_SAVE_REGS;
6721
6722 return g_try_realloc (ptr, (gulong)size);
6723 }
6724
6725 void *
6726 mono_marshal_string_to_utf16 (MonoString *s)
6727 {
6728 return s ? mono_string_chars (s) : NULL;
6729 }
6730
6731 /**
6732 * mono_marshal_set_last_error:
6733 *
6734 * This function is invoked to set the last error value from a P/Invoke call
6735 * which has SetLastError set.
6736 */
6737 void
6738 mono_marshal_set_last_error (void)
6739 {
6740 #ifdef WIN32
6741 TlsSetValue (last_error_tls_id, (gpointer)GetLastError ());
6742 #else
6743 TlsSetValue (last_error_tls_id, (gpointer)errno);
6744 #endif
6745 }
6746
6747 void
6748 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
6749 gpointer dest, gint32 length)
6750 {
6751 int element_size;
6752 void *source_addr;
6753
6754 MONO_ARCH_SAVE_REGS;
6755
6756 MONO_CHECK_ARG_NULL (src);
6757 MONO_CHECK_ARG_NULL (dest);
6758
6759 g_assert (src->obj.vtable->klass->rank == 1);
6760 g_assert (start_index >= 0);
6761 g_assert (length >= 0);
6762 g_assert (start_index + length <= mono_array_length (src));
6763
6764 element_size = mono_array_element_size (src->obj.vtable->klass);
6765
6766 source_addr = mono_array_addr_with_size (src, element_size, start_index);
6767
6768 memcpy (dest, source_addr, length * element_size);
6769 }
6770
6771 void
6772 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
6773 MonoArray *dest, gint32 length)
6774 {
6775 int element_size;
6776 void *dest_addr;
6777
6778 MONO_ARCH_SAVE_REGS;
6779
6780 MONO_CHECK_ARG_NULL (src);
6781 MONO_CHECK_ARG_NULL (dest);
6782
6783 g_assert (dest->obj.vtable->klass->rank == 1);
6784 g_assert (start_index >= 0);
6785 g_assert (length >= 0);
6786 g_assert (start_index + length <= mono_array_length (dest));
6787
6788 element_size = mono_array_element_size (dest->obj.vtable->klass);
6789
6790 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
6791
6792 memcpy (dest_addr, src, length * element_size);
6793 }
6794
6795 #if NO_UNALIGNED_ACCESS
6796 #define RETURN_UNALIGNED(type, addr) \
6797 { \
6798 type val; \
6799 memcpy(&val, p + offset, sizeof(val)); \
6800 return val; \
6801 }
6802 #define WRITE_UNALIGNED(type, addr, val) \
6803 memcpy(addr, &val, sizeof(type))
6804 #else
6805 #define RETURN_UNALIGNED(type, addr) \
6806 return *(type*)(p + offset);
6807 #define WRITE_UNALIGNED(type, addr, val) \
6808 (*(type *)(addr) = (val))
6809 #endif
6810
6811 gpointer
6812 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
6813 {
6814 char *p = ptr;
6815
6816 MONO_ARCH_SAVE_REGS;
6817
6818 RETURN_UNALIGNED(gpointer, p + offset);
6819 }
6820
6821 unsigned char
6822 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
6823 {
6824 char *p = ptr;
6825
6826 MONO_ARCH_SAVE_REGS;
6827
6828 return *(unsigned char*)(p + offset);
6829 }
6830
6831 gint16
6832 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
6833 {
6834 char *p = ptr;
6835
6836 MONO_ARCH_SAVE_REGS;
6837
6838 RETURN_UNALIGNED(gint16, p + offset);
6839 }
6840
6841 gint32
6842 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
6843 {
6844 char *p = ptr;
6845
6846 MONO_ARCH_SAVE_REGS;
6847
6848 RETURN_UNALIGNED(gint32, p + offset);
6849 }
6850
6851 gint64
6852 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
6853 {
6854 char *p = ptr;
6855
6856 MONO_ARCH_SAVE_REGS;
6857
6858 RETURN_UNALIGNED(gint64, p + offset);
6859 }
6860
6861 void
6862 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
6863 {
6864 char *p = ptr;
6865
6866 MONO_ARCH_SAVE_REGS;
6867
6868 *(unsigned char*)(p + offset) = val;
6869 }
6870
6871 void
6872 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
6873 {
6874 char *p = ptr;
6875
6876 MONO_ARCH_SAVE_REGS;
6877
6878 WRITE_UNALIGNED(gpointer, p + offset, val);
6879 }
6880
6881 void
6882 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
6883 {
6884 char *p = ptr;
6885
6886 MONO_ARCH_SAVE_REGS;
6887
6888 WRITE_UNALIGNED(gint16, p + offset, val);
6889 }
6890
6891 void
6892 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
6893 {
6894 char *p = ptr;
6895
6896 MONO_ARCH_SAVE_REGS;
6897
6898 WRITE_UNALIGNED(gint32, p + offset, val);
6899 }
6900
6901 void
6902 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
6903 {
6904 char *p = ptr;
6905
6906 MONO_ARCH_SAVE_REGS;
6907
6908 WRITE_UNALIGNED(gint64, p + offset, val);
6909 }
6910
6911 MonoString *
6912 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
6913 {
6914 MONO_ARCH_SAVE_REGS;
6915
6916 if (ptr == NULL)
6917 return NULL;
6918 else
6919 return mono_string_new (mono_domain_get (), ptr);
6920 }
6921
6922 MonoString *
6923 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
6924 {
6925 MONO_ARCH_SAVE_REGS;
6926
6927 if (ptr == NULL) {
6928 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
6929 g_assert_not_reached ();
6930 return NULL;
6931 } else
6932 return mono_string_new_len (mono_domain_get (), ptr, len);
6933 }
6934
6935 MonoString *
6936 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
6937 {
6938 MonoDomain *domain = mono_domain_get ();
6939 int len = 0;
6940 guint16 *t = ptr;
6941
6942 MONO_ARCH_SAVE_REGS;
6943
6944 if (ptr == NULL)
6945 return NULL;
6946
6947 while (*t++)
6948 len++;
6949
6950 return mono_string_new_utf16 (domain, ptr, len);
6951 }
6952
6953 MonoString *
6954 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
6955 {
6956 MonoDomain *domain = mono_domain_get ();
6957
6958 MONO_ARCH_SAVE_REGS;
6959
6960 if (ptr == NULL) {
6961 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
6962 g_assert_not_reached ();
6963 return NULL;
6964 } else
6965 return mono_string_new_utf16 (domain, ptr, len);
6966 }
6967
6968 MonoString *
6969 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
6970 {
6971 MONO_ARCH_SAVE_REGS;
6972
6973 g_warning ("PtrToStringBSTR not implemented");
6974 g_assert_not_reached ();
6975
6976 return NULL;
6977 }
6978
6979 guint32
6980 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
6981 {
6982 MONO_ARCH_SAVE_REGS;
6983
6984 return ((guint32)TlsGetValue (last_error_tls_id));
6985 }
6986
6987 guint32
6988 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
6989 {
6990 MonoClass *klass;
6991 MonoType *type;
6992 guint32 layout;
6993
6994 MONO_ARCH_SAVE_REGS;
6995
6996 MONO_CHECK_ARG_NULL (rtype);
6997
6998 type = rtype->type;
6999 klass = mono_class_from_mono_type (type);
7000 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
7001
7002 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
7003 gchar *msg;
7004 MonoException *exc;
7005
7006 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
7007 exc = mono_get_exception_argument ("t", msg);
7008 g_free (msg);
7009 mono_raise_exception (exc);
7010 }
7011
7012
7013 return mono_class_native_size (klass, NULL);
7014 }
7015
7016 void
7017 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
7018 {
7019 MonoMethod *method;
7020 gpointer pa [3];
7021
7022 MONO_ARCH_SAVE_REGS;
7023
7024 MONO_CHECK_ARG_NULL (obj);
7025 MONO_CHECK_ARG_NULL (dst);
7026
7027 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
7028
7029 pa [0] = obj;
7030 pa [1] = &dst;
7031 pa [2] = &delete_old;
7032
7033 mono_runtime_invoke (method, NULL, pa, NULL);
7034 }
7035
7036 void
7037 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
7038 {
7039 MonoMethod *method;
7040 gpointer pa [2];
7041
7042 MONO_ARCH_SAVE_REGS;
7043
7044 MONO_CHECK_ARG_NULL (src);
7045 MONO_CHECK_ARG_NULL (dst);
7046
7047 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
7048
7049 pa [0] = &src;
7050 pa [1] = dst;
7051
7052 mono_runtime_invoke (method, NULL, pa, NULL);
7053 }
7054
7055 MonoObject *
7056 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
7057 {
7058 MonoDomain *domain = mono_domain_get ();
7059 MonoObject *res;
7060
7061 MONO_ARCH_SAVE_REGS;
7062
7063 MONO_CHECK_ARG_NULL (src);
7064 MONO_CHECK_ARG_NULL (type);
7065
7066 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
7067
7068 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (src, res);
7069
7070 return res;
7071 }
7072
7073 int
7074 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
7075 {
7076 MonoMarshalType *info;
7077 MonoClass *klass;
7078 char *fname;
7079 int i, match_index = -1;
7080
7081 MONO_ARCH_SAVE_REGS;
7082
7083 MONO_CHECK_ARG_NULL (type);
7084 MONO_CHECK_ARG_NULL (field_name);
7085
7086 fname = mono_string_to_utf8 (field_name);
7087 klass = mono_class_from_mono_type (type->type);
7088
7089 while (klass && match_index == -1) {
7090 for (i = 0; i < klass->field.count; ++i) {
7091 if (*fname == *klass->fields [i].name && strcmp (fname, klass->fields [i].name) == 0) {
7092 match_index = i;
7093 break;
7094 }
7095 }
7096
7097 if (match_index == -1)
7098 klass = klass->parent;
7099 }
7100
7101 g_free (fname);
7102
7103 if(match_index == -1) {
7104 MonoException* exc;
7105 gchar *tmp;
7106
7107 /* Get back original class instance */
7108 klass = mono_class_from_mono_type (type->type);
7109
7110 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
7111 exc = mono_get_exception_argument ("fieldName", tmp);
7112 g_free (tmp);
7113
7114 mono_raise_exception ((MonoException*)exc);
7115 }
7116
7117 info = mono_marshal_load_type_info (klass);
7118 return info->fields [match_index].offset;
7119 }
7120
7121 gpointer
7122 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
7123 {
7124 MONO_ARCH_SAVE_REGS;
7125
7126 return mono_string_to_utf8 (string);
7127 }
7128
7129 gpointer
7130 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
7131 {
7132 MONO_ARCH_SAVE_REGS;
7133
7134 if (string == NULL)
7135 return NULL;
7136 else
7137 return g_memdup (mono_string_chars (string), mono_string_length (string)*2);
7138 }
7139
7140 static void
7141 mono_struct_delete_old (MonoClass *klass, char *ptr)
7142 {
7143 MonoMarshalType *info;
7144 int i;
7145
7146 info = mono_marshal_load_type_info (klass);
7147
7148 for (i = 0; i < info->num_fields; i++) {
7149 MonoMarshalNative ntype;
7150 MonoMarshalConv conv;
7151 MonoType *ftype = info->fields [i].field->type;
7152 char *cpos;
7153
7154 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
7155 continue;
7156
7157 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
7158 klass->unicode, &conv);
7159
7160 cpos = ptr + info->fields [i].offset;
7161
7162 switch (conv) {
7163 case MONO_MARSHAL_CONV_NONE:
7164 if (MONO_TYPE_ISSTRUCT (ftype)) {
7165 mono_struct_delete_old (ftype->data.klass, cpos);
7166 continue;
7167 }
7168 break;
7169 case MONO_MARSHAL_CONV_STR_LPWSTR:
7170 /* We assume this field points inside a MonoString */
7171 break;
7172 case MONO_MARSHAL_CONV_STR_LPSTR:
7173 case MONO_MARSHAL_CONV_STR_LPTSTR:
7174 case MONO_MARSHAL_CONV_STR_BSTR:
7175 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
7176 case MONO_MARSHAL_CONV_STR_TBSTR:
7177 mono_marshal_free (*(gpointer *)cpos);
7178 break;
7179 default:
7180 continue;
7181 }
7182 }
7183 }
7184
7185 void
7186 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
7187 {
7188 MonoClass *klass;
7189
7190 MONO_ARCH_SAVE_REGS;
7191
7192 MONO_CHECK_ARG_NULL (src);
7193 MONO_CHECK_ARG_NULL (type);
7194
7195 klass = mono_class_from_mono_type (type->type);
7196
7197 mono_struct_delete_old (klass, (char *)src);
7198 }
7199
7200
7201 /* FIXME: on win32 we should probably use GlobalAlloc(). */
7202 void*
7203 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
7204 {
7205 gpointer res;
7206
7207 MONO_ARCH_SAVE_REGS;
7208
7209 if ((gulong)size == 0)
7210 /* This returns a valid pointer for size 0 on MS.NET */
7211 size = 4;
7212
7213 res = g_try_malloc ((gulong)size);
7214 if (!res)
7215 mono_gc_out_of_memory ((gulong)size);
7216
7217 return res;
7218 }
7219
7220 void
7221 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
7222 {
7223 MONO_ARCH_SAVE_REGS;
7224
7225 g_free (ptr);
7226 }
7227
7228 void*
7229 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
7230 {
7231 MONO_ARCH_SAVE_REGS;
7232
7233 #ifdef PLATFORM_WIN32
7234 return CoTaskMemAlloc (size);
7235 #else
7236 return g_try_malloc ((gulong)size);
7237 #endif
7238 }
7239
7240 void
7241 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
7242 {
7243 MONO_ARCH_SAVE_REGS;
7244
7245 #ifdef PLATFORM_WIN32
7246 CoTaskMemFree (ptr);
7247 #else
7248 g_free (ptr);
7249 #endif
7250 }
7251
7252 void*
7253 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
7254 {
7255 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
7256 }
7257
7258 MonoDelegate*
7259 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
7260 {
7261 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
7262 }
7263
7264 MonoMarshalType *
7265 mono_marshal_load_type_info (MonoClass* klass)
7266 {
7267 int i, j, count = 0, native_size = 0, min_align = 1;
7268 MonoMarshalType *info;
7269 guint32 layout;
7270
7271 g_assert (klass != NULL);
7272
7273 if (klass->marshal_info)
7274 return klass->marshal_info;
7275
7276 if (!klass->inited)
7277 mono_class_init (klass);
7278
7279 for (i = 0; i < klass->field.count; ++i) {
7280 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
7281 continue;
7282 if (mono_field_is_deleted (&klass->fields [i]))
7283 continue;
7284 count++;
7285 }
7286
7287 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
7288
7289 klass->marshal_info = info = g_malloc0 (sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
7290 info->num_fields = count;
7291
7292 /* Try to find a size for this type in metadata */
7293 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
7294
7295 if (klass->parent) {
7296 int parent_size = mono_class_native_size (klass->parent, NULL);
7297
7298 /* Add parent size to real size */
7299 native_size += parent_size;
7300 info->native_size = parent_size;
7301 }
7302
7303 for (j = i = 0; i < klass->field.count; ++i) {
7304 int size, align;
7305
7306 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_STATIC)
7307 continue;
7308
7309 if (mono_field_is_deleted (&klass->fields [i]))
7310 continue;
7311 if (klass->fields [i].type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
7312 mono_metadata_field_info (klass->image, klass->field.first + i,
7313 NULL, NULL, &info->fields [j].mspec);
7314
7315 info->fields [j].field = &klass->fields [i];
7316
7317 if ((klass->field.count == 1) && (klass->instance_size == sizeof (MonoObject)) &&
7318 (strcmp (klass->fields [i].name, "$PRIVATE$") == 0)) {
7319 /* This field is a hack inserted by MCS to empty structures */
7320 continue;
7321 }
7322
7323 switch (layout) {
7324 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
7325 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
7326 size = mono_marshal_type_size (klass->fields [i].type, info->fields [j].mspec,
7327 &align, TRUE, klass->unicode);
7328 align = klass->packing_size ? MIN (klass->packing_size, align): align;
7329 min_align = MAX (align, min_align);
7330 info->fields [j].offset = info->native_size;
7331 info->fields [j].offset += align - 1;
7332 info->fields [j].offset &= ~(align - 1);
7333 info->native_size = info->fields [j].offset + size;
7334 break;
7335 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
7336 size = mono_marshal_type_size (klass->fields [i].type, info->fields [j].mspec,
7337 &align, TRUE, klass->unicode);
7338 align = klass->packing_size ? MIN (klass->packing_size, align): align;
7339 min_align = MAX (align, min_align);
7340 info->fields [j].offset = klass->fields [i].offset - sizeof (MonoObject);
7341 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
7342 break;
7343 }
7344 j++;
7345 }
7346
7347 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
7348 info->native_size = MAX (native_size, info->native_size);
7349 }
7350
7351 if (info->native_size & (min_align - 1)) {
7352 info->native_size += min_align - 1;
7353 info->native_size &= ~(min_align - 1);
7354 }
7355
7356 /* Update the class's blittable info, if the layouts don't match */
7357 if (info->native_size != mono_class_value_size (klass, NULL))
7358 klass->blittable = FALSE;
7359
7360 /* If this is an array type, ensure that we have element info */
7361 if (klass->element_class) {
7362 mono_marshal_load_type_info (klass->element_class);
7363 }
7364
7365 return klass->marshal_info;
7366 }
7367
7368 /**
7369 * mono_class_native_size:
7370 * @klass: a class
7371 *
7372 * Returns: the native size of an object instance (when marshaled
7373 * to unmanaged code)
7374 */
7375 gint32
7376 mono_class_native_size (MonoClass *klass, guint32 *align)
7377 {
7378 if (!klass->marshal_info)
7379 mono_marshal_load_type_info (klass);
7380
7381 if (align)
7382 *align = klass->min_align;
7383
7384 return klass->marshal_info->native_size;
7385 }
7386
7387 /*
7388 * mono_type_native_stack_size:
7389 * @t: the type to return the size it uses on the stack
7390 *
7391 * Returns: the number of bytes required to hold an instance of this
7392 * type on the native stack
7393 */
7394 int
7395 mono_type_native_stack_size (MonoType *t, gint *align)
7396 {
7397 int tmp;
7398
7399 g_assert (t != NULL);
7400
7401 if (!align)
7402 align = &tmp;
7403
7404 if (t->byref) {
7405 *align = 4;
7406 return 4;
7407 }
7408
7409 switch (t->type){
7410 case MONO_TYPE_BOOLEAN:
7411 case MONO_TYPE_CHAR:
7412 case MONO_TYPE_I1:
7413 case MONO_TYPE_U1:
7414 case MONO_TYPE_I2:
7415 case MONO_TYPE_U2:
7416 case MONO_TYPE_I4:
7417 case MONO_TYPE_U4:
7418 case MONO_TYPE_I:
7419 case MONO_TYPE_U:
7420 case MONO_TYPE_STRING:
7421 case MONO_TYPE_OBJECT:
7422 case MONO_TYPE_CLASS:
7423 case MONO_TYPE_SZARRAY:
7424 case MONO_TYPE_PTR:
7425 case MONO_TYPE_FNPTR:
7426 case MONO_TYPE_ARRAY:
7427 case MONO_TYPE_TYPEDBYREF:
7428 *align = 4;
7429 return 4;
7430 case MONO_TYPE_R4:
7431 *align = 4;
7432 return 4;
7433 case MONO_TYPE_I8:
7434 case MONO_TYPE_U8:
7435 case MONO_TYPE_R8:
7436 *align = 4;
7437 return 8;
7438 case MONO_TYPE_VALUETYPE: {
7439 guint32 size;
7440
7441 if (t->data.klass->enumtype)
7442 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
7443 else {
7444 size = mono_class_native_size (t->data.klass, align);
7445 *align = *align + 3;
7446 *align &= ~3;
7447
7448 size += 3;
7449 size &= ~3;
7450
7451 return size;
7452 }
7453 }
7454 default:
7455 g_error ("type 0x%02x unknown", t->type);
7456 }
7457 return 0;
7458 }
7459
7460 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
7461 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
7462 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
7463 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
7464
7465 gint32
7466 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, gint32 *align,
7467 gboolean as_field, gboolean unicode)
7468 {
7469 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
7470 MonoClass *klass;
7471
7472 switch (native_type) {
7473 case MONO_NATIVE_BOOLEAN:
7474 *align = 4;
7475 return 4;
7476 case MONO_NATIVE_I1:
7477 case MONO_NATIVE_U1:
7478 *align = 1;
7479 return 1;
7480 case MONO_NATIVE_I2:
7481 case MONO_NATIVE_U2:
7482 case MONO_NATIVE_VARIANTBOOL:
7483 *align = 2;
7484 return 2;
7485 case MONO_NATIVE_I4:
7486 case MONO_NATIVE_U4:
7487 case MONO_NATIVE_ERROR:
7488 *align = 4;
7489 return 4;
7490 case MONO_NATIVE_I8:
7491 case MONO_NATIVE_U8:
7492 *align = ALIGNMENT(guint64);
7493 return 8;
7494 case MONO_NATIVE_R4:
7495 *align = 4;
7496 return 4;
7497 case MONO_NATIVE_R8:
7498 *align = ALIGNMENT(double);
7499 return 8;
7500 case MONO_NATIVE_INT:
7501 case MONO_NATIVE_UINT:
7502 case MONO_NATIVE_LPSTR:
7503 case MONO_NATIVE_LPWSTR:
7504 case MONO_NATIVE_LPTSTR:
7505 case MONO_NATIVE_BSTR:
7506 case MONO_NATIVE_ANSIBSTR:
7507 case MONO_NATIVE_TBSTR:
7508 case MONO_NATIVE_LPARRAY:
7509 case MONO_NATIVE_SAFEARRAY:
7510 case MONO_NATIVE_IUNKNOWN:
7511 case MONO_NATIVE_IDISPATCH:
7512 case MONO_NATIVE_INTERFACE:
7513 case MONO_NATIVE_ASANY:
7514 case MONO_NATIVE_FUNC:
7515 case MONO_NATIVE_LPSTRUCT:
7516 *align = ALIGNMENT(gpointer);
7517 return sizeof (gpointer);
7518 case MONO_NATIVE_STRUCT:
7519 klass = mono_class_from_mono_type (type);
7520 return mono_class_native_size (klass, align);
7521 case MONO_NATIVE_BYVALTSTR: {
7522 int esize = unicode ? 2: 1;
7523 g_assert (mspec);
7524 *align = esize;
7525 return mspec->data.array_data.num_elem * esize;
7526 }
7527 case MONO_NATIVE_BYVALARRAY: {
7528 int esize;
7529 klass = mono_class_from_mono_type (type);
7530 esize = mono_class_native_size (klass->element_class, align);
7531 g_assert (mspec);
7532 return mspec->data.array_data.num_elem * esize;
7533 }
7534 case MONO_NATIVE_CUSTOM:
7535 g_assert_not_reached ();
7536 break;
7537 case MONO_NATIVE_CURRENCY:
7538 case MONO_NATIVE_VBBYREFSTR:
7539 default:
7540 g_error ("native type %02x not implemented", native_type);
7541 break;
7542 }
7543 g_assert_not_reached ();
7544 return 0;
7545 }
7546
7547 gpointer
7548 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding)
7549 {
7550 MonoType *t;
7551 MonoClass *klass;
7552
7553 if (o == NULL)
7554 return NULL;
7555
7556 t = &o->vtable->klass->byval_arg;
7557 switch (t->type) {
7558 case MONO_TYPE_I4:
7559 case MONO_TYPE_U4:
7560 case MONO_TYPE_PTR:
7561 case MONO_TYPE_I1:
7562 case MONO_TYPE_U1:
7563 case MONO_TYPE_BOOLEAN:
7564 case MONO_TYPE_I2:
7565 case MONO_TYPE_U2:
7566 case MONO_TYPE_CHAR:
7567 case MONO_TYPE_I8:
7568 case MONO_TYPE_U8:
7569 case MONO_TYPE_R4:
7570 case MONO_TYPE_R8:
7571 return mono_object_unbox (o);
7572 break;
7573 case MONO_TYPE_STRING:
7574 switch (string_encoding) {
7575 case MONO_NATIVE_LPWSTR:
7576 return mono_string_to_utf16 ((MonoString*)o);
7577 break;
7578 case MONO_NATIVE_LPSTR:
7579 return mono_string_to_lpstr ((MonoString*)o);
7580 break;
7581 default:
7582 g_warning ("marshaling conversion %d not implemented", string_encoding);
7583 g_assert_not_reached ();
7584 }
7585 break;
7586 case MONO_TYPE_CLASS:
7587 case MONO_TYPE_VALUETYPE: {
7588 MonoMethod *method;
7589 gpointer pa [3];
7590 gpointer res;
7591 MonoBoolean delete_old = FALSE;
7592
7593 klass = t->data.klass;
7594
7595 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
7596 break;
7597
7598 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
7599 klass->blittable || klass->enumtype)
7600 return mono_object_unbox (o);
7601
7602 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
7603
7604 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
7605
7606 pa [0] = o;
7607 pa [1] = &res;
7608 pa [2] = &delete_old;
7609
7610 mono_runtime_invoke (method, NULL, pa, NULL);
7611
7612 return res;
7613 }
7614 }
7615
7616 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
7617
7618 return NULL;
7619 }
7620
7621 void
7622 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding)
7623 {
7624 MonoType *t;
7625 MonoClass *klass;
7626
7627 if (o == NULL)
7628 return;
7629
7630 t = &o->vtable->klass->byval_arg;
7631 switch (t->type) {
7632 case MONO_TYPE_STRING:
7633 switch (string_encoding) {
7634 case MONO_NATIVE_LPWSTR:
7635 case MONO_NATIVE_LPSTR:
7636 mono_marshal_free (ptr);
7637 break;
7638 default:
7639 g_warning ("marshaling conversion %d not implemented", string_encoding);
7640 g_assert_not_reached ();
7641 }
7642 break;
7643 case MONO_TYPE_CLASS:
7644 case MONO_TYPE_VALUETYPE: {
7645 klass = t->data.klass;
7646
7647 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
7648 klass->blittable || klass->enumtype)
7649 break;
7650
7651 mono_struct_delete_old (klass, ptr);
7652
7653 mono_marshal_free (ptr);
7654 break;
7655 }
7656 default:
7657 break;
7658 }
7659 }
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