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Wrap MonoVTable::remote into a pair of accessors to make it easy to have code linked...
[mono-project.git] / mono / metadata / marshal.c
blobdd658af92c4fa0875b11f98209dc80b5c1e90e47
1 /*
2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
3 *
4 * Author:
5 * Paolo Molaro (lupus@ximian.com)
6 *
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
10 *
11 */
12
13 #include "config.h"
14 #ifdef HAVE_ALLOCA_H
15 #include <alloca.h>
16 #endif
17
18 #include "object.h"
19 #include "loader.h"
20 #include "cil-coff.h"
21 #include "metadata/marshal.h"
22 #include "metadata/method-builder.h"
23 #include "metadata/tabledefs.h"
24 #include "metadata/exception.h"
25 #include "metadata/appdomain.h"
26 #include "mono/metadata/debug-helpers.h"
27 #include "mono/metadata/threadpool.h"
28 #include "mono/metadata/threads.h"
29 #include "mono/metadata/monitor.h"
30 #include "mono/metadata/metadata-internals.h"
31 #include "mono/metadata/domain-internals.h"
32 #include "mono/metadata/gc-internal.h"
33 #include "mono/metadata/threads-types.h"
34 #include "mono/metadata/string-icalls.h"
35 #include "mono/metadata/attrdefs.h"
36 #include "mono/metadata/gc-internal.h"
37 #include "mono/metadata/cominterop.h"
38 #include "mono/utils/mono-counters.h"
39 #include "mono/utils/mono-tls.h"
40 #include "mono/utils/mono-memory-model.h"
41 #include <string.h>
42 #include <errno.h>
43
44 /* #define DEBUG_RUNTIME_CODE */
45
46 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
47 a = i,
48
49 typedef enum {
50 MONO_MARSHAL_NONE, /* No marshalling needed */
51 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
52 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
53 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
54 } MonoXDomainMarshalType;
55
56 enum {
57 #include "mono/cil/opcode.def"
58 LAST = 0xff
59 };
60 #undef OPDEF
61
62 struct _MonoRemotingMethods {
63 MonoMethod *invoke;
64 MonoMethod *invoke_with_check;
65 MonoMethod *xdomain_invoke;
66 MonoMethod *xdomain_dispatch;
67 };
68
69 typedef struct _MonoRemotingMethods MonoRemotingMethods;
70
71 /*
72 * This mutex protects the various marshalling related caches in MonoImage
73 * and a few other data structures static to this file.
74 * Note that when this lock is held it is not possible to take other runtime
75 * locks like the loader lock.
76 */
77 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
78 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
79 static CRITICAL_SECTION marshal_mutex;
80 static gboolean marshal_mutex_initialized;
81
82 static MonoNativeTlsKey last_error_tls_id;
83
84 static MonoNativeTlsKey load_type_info_tls_id;
85
86 static gboolean use_aot_wrappers;
87
88 static void
89 delegate_hash_table_add (MonoDelegate *d);
90
91 static void
92 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
93
94 static void
95 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
96
97 static void
98 mono_struct_delete_old (MonoClass *klass, char *ptr);
99
100 void *
101 mono_marshal_string_to_utf16 (MonoString *s);
102
103 static void *
104 mono_marshal_string_to_utf16_copy (MonoString *s);
105
106 static gpointer
107 mono_string_to_lpstr (MonoString *string_obj);
108
109 static MonoStringBuilder *
110 mono_string_utf8_to_builder2 (char *text);
111
112 static MonoStringBuilder *
113 mono_string_utf16_to_builder2 (gunichar2 *text);
114
115 static MonoString*
116 mono_string_new_len_wrapper (const char *text, guint length);
117
118 static MonoString *
119 mono_string_from_byvalwstr (gunichar2 *data, int len);
120
121 static void
122 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
123
124 static void
125 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
126
127
128 static MonoAsyncResult *
129 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
130
131 static MonoObject *
132 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
133
134 static void
135 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
136
137 static gint32
138 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
139
140 static gboolean
141 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
142
143 #ifndef DISABLE_REMOTING
144 static MonoObject *
145 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
146
147 void
148 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
149
150 #endif
151
152 static MonoReflectionType *
153 type_from_handle (MonoType *handle);
154
155 static void
156 mono_marshal_set_last_error_windows (int error);
157
158 static void init_safe_handle (void);
159
160 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
161 static MonoMethod *sh_dangerous_add_ref;
162 static MonoMethod *sh_dangerous_release;
163
164
165 static void
166 init_safe_handle ()
167 {
168 sh_dangerous_add_ref = mono_class_get_method_from_name (
169 mono_defaults.safehandle_class, "DangerousAddRef", 1);
170 sh_dangerous_release = mono_class_get_method_from_name (
171 mono_defaults.safehandle_class, "DangerousRelease", 0);
172 }
173
174 static void
175 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
176 {
177 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
178
179 mono_register_jit_icall (func, name, sig, save);
180 }
181
182 static MonoMethodSignature*
183 signature_dup (MonoImage *image, MonoMethodSignature *sig)
184 {
185 MonoMethodSignature *res;
186 int sigsize;
187
188 res = mono_metadata_signature_alloc (image, sig->param_count);
189 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
190 memcpy (res, sig, sigsize);
191
192 return res;
193 }
194
195 MonoMethodSignature*
196 mono_signature_no_pinvoke (MonoMethod *method)
197 {
198 MonoMethodSignature *sig = mono_method_signature (method);
199 if (sig->pinvoke) {
200 sig = signature_dup (method->klass->image, sig);
201 sig->pinvoke = FALSE;
202 }
203
204 return sig;
205 }
206
207 void
208 mono_marshal_init (void)
209 {
210 static gboolean module_initialized = FALSE;
211
212 if (!module_initialized) {
213 module_initialized = TRUE;
214 InitializeCriticalSection (&marshal_mutex);
215 marshal_mutex_initialized = TRUE;
216 mono_native_tls_alloc (&last_error_tls_id, NULL);
217 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
218
219 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
220 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
221 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
222 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
223 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
224 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
225 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
226 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
227 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
228 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
229 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
230 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
231 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
232 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
233 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
234 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
235 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
236 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
237 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
238 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
239 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
240 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
241 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
242 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
243 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
244 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
245 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
246 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
247 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
248 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
249 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
250 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
251 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
252 register_icall (g_free, "g_free", "void ptr", FALSE);
253 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
254 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
255 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
256 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
257 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
258 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
259 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
260 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
261 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
262 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
263 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
264 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
265 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
266 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
267
268 #ifndef DISABLE_REMOTING
269 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
270 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
271 #endif
272 mono_cominterop_init ();
273 }
274 }
275
276 void
277 mono_marshal_cleanup (void)
278 {
279 mono_cominterop_cleanup ();
280
281 mono_native_tls_free (load_type_info_tls_id);
282 mono_native_tls_free (last_error_tls_id);
283 DeleteCriticalSection (&marshal_mutex);
284 marshal_mutex_initialized = FALSE;
285 }
286
287 #ifndef DISABLE_REMOTING
288 static MonoClass *byte_array_class;
289 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
290 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
291
292 static void
293 mono_remoting_marshal_init (void)
294 {
295 MonoClass *klass;
296
297 static gboolean module_initialized = FALSE;
298
299 if (!module_initialized) {
300 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
301 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
302 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
303 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
304
305 klass = mono_defaults.real_proxy_class;
306 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
307
308 klass = mono_defaults.exception_class;
309 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
310
311 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
312
313 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
314 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
315
316 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
317 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
318
319 module_initialized = TRUE;
320 }
321 }
322 #endif
323
324 gpointer
325 mono_delegate_to_ftnptr (MonoDelegate *delegate)
326 {
327 MonoMethod *method, *wrapper;
328 MonoClass *klass;
329 uint32_t target_handle = 0;
330
331 if (!delegate)
332 return NULL;
333
334 if (delegate->delegate_trampoline)
335 return delegate->delegate_trampoline;
336
337 klass = ((MonoObject *)delegate)->vtable->klass;
338 g_assert (klass->delegate);
339
340 method = delegate->method;
341
342 if (mono_method_signature (method)->pinvoke) {
343 const char *exc_class, *exc_arg;
344 gpointer ftnptr;
345
346 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
347 if (!ftnptr) {
348 g_assert (exc_class);
349 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
350 }
351 return ftnptr;
352 }
353
354 if (delegate->target) {
355 /* Produce a location which can be embedded in JITted code */
356 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
357 }
358
359 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
360
361 delegate->delegate_trampoline = mono_compile_method (wrapper);
362
363 // Add the delegate to the delegate hash table
364 delegate_hash_table_add (delegate);
365
366 /* when the object is collected, collect the dynamic method, too */
367 mono_object_register_finalizer ((MonoObject*)delegate);
368
369 return delegate->delegate_trampoline;
370 }
371
372 /*
373 * this hash table maps from a delegate trampoline object to a weak reference
374 * of the delegate. As an optimizations with a non-moving GC we store the
375 * object pointer itself, otherwise we use a GC handle.
376 */
377 static GHashTable *delegate_hash_table;
378
379 static GHashTable *
380 delegate_hash_table_new (void) {
381 return g_hash_table_new (NULL, NULL);
382 }
383
384 static void
385 delegate_hash_table_remove (MonoDelegate *d)
386 {
387 guint32 gchandle = 0;
388
389 mono_marshal_lock ();
390 if (delegate_hash_table == NULL)
391 delegate_hash_table = delegate_hash_table_new ();
392 if (mono_gc_is_moving ())
393 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
394 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
395 mono_marshal_unlock ();
396 if (mono_gc_is_moving ())
397 mono_gchandle_free (gchandle);
398 }
399
400 static void
401 delegate_hash_table_add (MonoDelegate *d)
402 {
403 guint32 gchandle;
404 guint32 old_gchandle;
405
406 mono_marshal_lock ();
407 if (delegate_hash_table == NULL)
408 delegate_hash_table = delegate_hash_table_new ();
409 if (mono_gc_is_moving ()) {
410 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
411 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
412 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
413 if (old_gchandle)
414 mono_gchandle_free (old_gchandle);
415 } else {
416 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
417 }
418 mono_marshal_unlock ();
419 }
420
421 /*
422 * mono_marshal_use_aot_wrappers:
423 *
424 * Instructs this module to use AOT compatible wrappers.
425 */
426 void
427 mono_marshal_use_aot_wrappers (gboolean use)
428 {
429 use_aot_wrappers = use;
430 }
431
432 static void
433 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
434 {
435 static MonoClass *UnmanagedFunctionPointerAttribute;
436 MonoCustomAttrInfo *cinfo;
437 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
438
439 if (!UnmanagedFunctionPointerAttribute)
440 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
441
442 /* The attribute is only available in Net 2.0 */
443 if (UnmanagedFunctionPointerAttribute) {
444 /*
445 * The pinvoke attributes are stored in a real custom attribute so we have to
446 * construct it.
447 */
448 cinfo = mono_custom_attrs_from_class (klass);
449 if (cinfo && !mono_runtime_get_no_exec ()) {
450 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
451 if (attr) {
452 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
453 }
454 if (!cinfo->cached)
455 mono_custom_attrs_free (cinfo);
456 }
457 }
458 }
459
460 MonoDelegate*
461 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
462 {
463 guint32 gchandle;
464 MonoDelegate *d;
465
466 if (ftn == NULL)
467 return NULL;
468
469 mono_marshal_lock ();
470 if (delegate_hash_table == NULL)
471 delegate_hash_table = delegate_hash_table_new ();
472
473 if (mono_gc_is_moving ()) {
474 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
475 mono_marshal_unlock ();
476 if (gchandle)
477 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
478 else
479 d = NULL;
480 } else {
481 d = g_hash_table_lookup (delegate_hash_table, ftn);
482 mono_marshal_unlock ();
483 }
484 if (d == NULL) {
485 /* This is a native function, so construct a delegate for it */
486 MonoMethodSignature *sig;
487 MonoMethod *wrapper;
488 MonoMarshalSpec **mspecs;
489 MonoMethod *invoke = mono_get_delegate_invoke (klass);
490 MonoMethodPInvoke piinfo;
491 MonoObject *this;
492 int i;
493
494 if (use_aot_wrappers) {
495 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
496 this = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
497 } else {
498 memset (&piinfo, 0, sizeof (piinfo));
499 parse_unmanaged_function_pointer_attr (klass, &piinfo);
500
501 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
502 mono_method_get_marshal_info (invoke, mspecs);
503 /* Freed below so don't alloc from mempool */
504 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
505 sig->hasthis = 0;
506
507 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
508 this = NULL;
509
510 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
511 if (mspecs [i])
512 mono_metadata_free_marshal_spec (mspecs [i]);
513 g_free (mspecs);
514 g_free (sig);
515 }
516
517 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
518 mono_delegate_ctor_with_method ((MonoObject*)d, this, mono_compile_method (wrapper), wrapper);
519 }
520
521 if (d->object.vtable->domain != mono_domain_get ())
522 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
523
524 return d;
525 }
526
527 void
528 mono_delegate_free_ftnptr (MonoDelegate *delegate)
529 {
530 MonoJitInfo *ji;
531 void *ptr;
532
533 delegate_hash_table_remove (delegate);
534
535 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
536
537 if (!delegate->target) {
538 /* The wrapper method is shared between delegates -> no need to free it */
539 return;
540 }
541
542 if (ptr) {
543 uint32_t gchandle;
544 void **method_data;
545 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
546 g_assert (ji);
547
548 method_data = ((MonoMethodWrapper*)ji->method)->method_data;
549
550 /*the target gchandle is the first entry after size and the wrapper itself.*/
551 gchandle = GPOINTER_TO_UINT (method_data [2]);
552
553 if (gchandle)
554 mono_gchandle_free (gchandle);
555
556 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
557 }
558 }
559
560 static MonoString *
561 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
562 {
563 MonoDomain *domain = mono_domain_get ();
564 int len = 0;
565
566 if (!data)
567 return NULL;
568
569 while (data [len]) len++;
570
571 return mono_string_new_utf16 (domain, data, MIN (len, max_len));
572 }
573
574 gpointer
575 mono_array_to_savearray (MonoArray *array)
576 {
577 if (!array)
578 return NULL;
579
580 g_assert_not_reached ();
581 return NULL;
582 }
583
584 gpointer
585 mono_array_to_lparray (MonoArray *array)
586 {
587 gpointer *nativeArray = NULL;
588 int nativeArraySize = 0;
589
590 int i = 0;
591 MonoClass *klass;
592
593 if (!array)
594 return NULL;
595 #ifndef DISABLE_COM
596
597 klass = array->obj.vtable->klass;
598
599 switch (klass->element_class->byval_arg.type) {
600 case MONO_TYPE_VOID:
601 g_assert_not_reached ();
602 break;
603 #ifndef DISABLE_COM
604 case MONO_TYPE_CLASS:
605 nativeArraySize = array->max_length;
606 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
607 for(i = 0; i < nativeArraySize; ++i)
608 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
609 return nativeArray;
610 #endif
611 case MONO_TYPE_U1:
612 case MONO_TYPE_BOOLEAN:
613 case MONO_TYPE_I1:
614 case MONO_TYPE_U2:
615 case MONO_TYPE_CHAR:
616 case MONO_TYPE_I2:
617 case MONO_TYPE_I:
618 case MONO_TYPE_U:
619 case MONO_TYPE_I4:
620 case MONO_TYPE_U4:
621 case MONO_TYPE_U8:
622 case MONO_TYPE_I8:
623 case MONO_TYPE_R4:
624 case MONO_TYPE_R8:
625 case MONO_TYPE_VALUETYPE:
626 case MONO_TYPE_PTR:
627 /* nothing to do */
628 break;
629 case MONO_TYPE_GENERICINST:
630 case MONO_TYPE_OBJECT:
631 case MONO_TYPE_ARRAY:
632 case MONO_TYPE_SZARRAY:
633 case MONO_TYPE_STRING:
634 default:
635 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
636 g_assert_not_reached ();
637 }
638 #endif
639 return array->vector;
640 }
641
642 void
643 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
644 {
645 #ifndef DISABLE_COM
646 MonoClass *klass;
647 int i = 0;
648
649 if (!array)
650 return;
651
652 if (!nativeArray)
653 return;
654 klass = array->obj.vtable->klass;
655
656 switch (klass->element_class->byval_arg.type) {
657 case MONO_TYPE_CLASS:
658 for(i = 0; i < array->max_length; ++i)
659 mono_marshal_free_ccw(nativeArray[i]);
660 free(nativeArray);
661 break;
662 }
663 #endif
664 }
665
666 static void
667 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
668 {
669 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
670
671 if (elclass == mono_defaults.byte_class) {
672 GError *error = NULL;
673 guint16 *ut;
674 glong items_written;
675
676 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
677
678 if (!error) {
679 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
680 g_free (ut);
681 }
682 else
683 g_error_free (error);
684 }
685 else
686 g_assert_not_reached ();
687 }
688
689 static void
690 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
691 {
692 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
693
694 if (elclass == mono_defaults.byte_class) {
695 char *as;
696 GError *error = NULL;
697
698 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
699 if (error) {
700 MonoException *exc = mono_get_exception_argument ("string", error->message);
701 g_error_free (error);
702 mono_raise_exception (exc);
703 }
704
705 memcpy (native_arr, as, MIN (strlen (as), elnum));
706 g_free (as);
707 } else {
708 g_assert_not_reached ();
709 }
710 }
711
712 void
713 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
714 {
715 GError *error = NULL;
716 guint16 *ut;
717 glong items_written;
718 int l;
719
720 if (!sb || !text)
721 return;
722
723 l = strlen (text);
724
725 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
726
727 if (items_written > mono_stringbuilder_capacity (sb))
728 items_written = mono_stringbuilder_capacity (sb);
729
730 if (!error) {
731 if (! sb->str || sb->str == sb->cached_str)
732 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
733
734 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
735 sb->length = items_written;
736 sb->cached_str = NULL;
737 } else
738 g_error_free (error);
739
740 g_free (ut);
741 }
742
743 MonoStringBuilder *
744 mono_string_utf8_to_builder2 (char *text)
745 {
746 int l;
747 MonoStringBuilder *sb;
748 static MonoClass *string_builder_class;
749 static MonoMethod *sb_ctor;
750 void *args [1];
751 MonoObject *exc;
752
753 if (!text)
754 return NULL;
755
756 if (!string_builder_class) {
757 MonoMethodDesc *desc;
758
759 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
760 g_assert (string_builder_class);
761 desc = mono_method_desc_new (":.ctor(int)", FALSE);
762 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
763 g_assert (sb_ctor);
764 mono_method_desc_free (desc);
765 }
766
767 l = strlen (text);
768
769 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
770 g_assert (sb);
771 args [0] = &l;
772 mono_runtime_invoke (sb_ctor, sb, args, &exc);
773 g_assert (!exc);
774
775 mono_string_utf8_to_builder (sb, text);
776
777 return sb;
778 }
779
780 /*
781 * FIXME: This routine does not seem to do what it seems to do
782 * the @text is never copied into the string builder
783 */
784 void
785 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
786 {
787 guint32 len;
788
789 if (!sb || !text)
790 return;
791
792 g_assert (mono_string_chars (sb->str) == text);
793
794 for (len = 0; text [len] != 0; ++len)
795 ;
796
797 sb->length = len;
798 }
799
800 MonoStringBuilder *
801 mono_string_utf16_to_builder2 (gunichar2 *text)
802 {
803 int len;
804 MonoStringBuilder *sb;
805 static MonoClass *string_builder_class;
806 static MonoMethod *sb_ctor;
807 void *args [1];
808 MonoObject *exc;
809
810 if (!text)
811 return NULL;
812
813 if (!string_builder_class) {
814 MonoMethodDesc *desc;
815
816 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
817 g_assert (string_builder_class);
818 desc = mono_method_desc_new (":.ctor(int)", FALSE);
819 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
820 g_assert (sb_ctor);
821 mono_method_desc_free (desc);
822 }
823
824 for (len = 0; text [len] != 0; ++len)
825 ;
826
827 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
828 g_assert (sb);
829 args [0] = &len;
830 mono_runtime_invoke (sb_ctor, sb, args, &exc);
831 g_assert (!exc);
832
833 sb->length = len;
834 memcpy (mono_string_chars (sb->str), text, len * 2);
835
836 return sb;
837 }
838
839 /**
840 * mono_string_builder_to_utf8:
841 * @sb: the string builder
842 *
843 * Converts to utf8 the contents of the MonoStringBuilder.
844 *
845 * Returns: a utf8 string with the contents of the StringBuilder.
846 *
847 * The return value must be released with g_free.
848 */
849 gpointer
850 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
851 {
852 GError *error = NULL;
853 gchar *tmp, *res = NULL;
854
855 if (!sb)
856 return NULL;
857
858 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
859 /*
860 * The sb could have been allocated with the default capacity and be empty.
861 * we need to alloc a buffer of the default capacity in this case.
862 */
863 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
864 sb->cached_str = NULL;
865 }
866
867 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
868 if (error) {
869 g_error_free (error);
870 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
871 } else {
872 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
873 memcpy (res, tmp, sb->length + 1);
874 g_free (tmp);
875 }
876
877 return res;
878 }
879
880 /**
881 * mono_string_builder_to_utf16:
882 * @sb: the string builder
883 *
884 * Converts to utf16 the contents of the MonoStringBuilder.
885 *
886 * Returns: a utf16 string with the contents of the StringBuilder.
887 *
888 * The return value must not be freed.
889 */
890 gpointer
891 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
892 {
893 if (!sb)
894 return NULL;
895
896 g_assert (sb->str);
897
898 /*
899 * The stringbuilder might not have ownership of this string. If this is
900 * the case, we must duplicate the string, so that we don't munge immutable
901 * strings
902 */
903 if (sb->str == sb->cached_str) {
904 /*
905 * The sb could have been allocated with the default capacity and be empty.
906 * we need to alloc a buffer of the default capacity in this case.
907 */
908 if (sb->str->length == 0)
909 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
910 else
911 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
912 sb->cached_str = NULL;
913 }
914
915 if (sb->length == 0)
916 *(mono_string_chars (sb->str)) = '\0';
917
918 return mono_string_chars (sb->str);
919 }
920
921 static gpointer
922 mono_string_to_lpstr (MonoString *s)
923 {
924 #ifdef TARGET_WIN32
925 char *as, *tmp;
926 glong len;
927 GError *error = NULL;
928
929 if (s == NULL)
930 return NULL;
931
932 if (!s->length) {
933 as = CoTaskMemAlloc (1);
934 as [0] = '\0';
935 return as;
936 }
937
938 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
939 if (error) {
940 MonoException *exc = mono_get_exception_argument ("string", error->message);
941 g_error_free (error);
942 mono_raise_exception(exc);
943 return NULL;
944 } else {
945 as = CoTaskMemAlloc (len + 1);
946 memcpy (as, tmp, len + 1);
947 g_free (tmp);
948 return as;
949 }
950 #else
951 return mono_string_to_utf8 (s);
952 #endif
953 }
954
955 gpointer
956 mono_string_to_ansibstr (MonoString *string_obj)
957 {
958 g_error ("UnmanagedMarshal.BStr is not implemented.");
959 return NULL;
960 }
961
962 /**
963 * mono_string_to_byvalstr:
964 * @dst: Where to store the null-terminated utf8 decoded string.
965 * @src: the MonoString to copy.
966 * @size: the maximum number of bytes to copy.
967 *
968 * Copies the MonoString pointed to by @src as a utf8 string
969 * into @dst, it copies at most @size bytes into the destination.
970 */
971 void
972 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
973 {
974 char *s;
975 int len;
976
977 g_assert (dst != NULL);
978 g_assert (size > 0);
979
980 memset (dst, 0, size);
981 if (!src)
982 return;
983
984 s = mono_string_to_utf8 (src);
985 len = MIN (size, strlen (s));
986 if (len >= size)
987 len--;
988 memcpy (dst, s, len);
989 g_free (s);
990 }
991
992 /**
993 * mono_string_to_byvalwstr:
994 * @dst: Where to store the null-terminated utf16 decoded string.
995 * @src: the MonoString to copy.
996 * @size: the maximum number of bytes to copy.
997 *
998 * Copies the MonoString pointed to by @src as a utf16 string into
999 * @dst, it copies at most @size bytes into the destination (including
1000 * a terminating 16-bit zero terminator).
1001 */
1002 void
1003 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1004 {
1005 int len;
1006
1007 g_assert (dst != NULL);
1008 g_assert (size > 1);
1009
1010 if (!src) {
1011 memset (dst, 0, size * 2);
1012 return;
1013 }
1014
1015 len = MIN (size, (mono_string_length (src)));
1016 memcpy (dst, mono_string_chars (src), size * 2);
1017 if (size <= mono_string_length (src))
1018 len--;
1019 *((gunichar2 *) dst + len) = 0;
1020 }
1021
1022 static MonoString*
1023 mono_string_new_len_wrapper (const char *text, guint length)
1024 {
1025 return mono_string_new_len (mono_domain_get (), text, length);
1026 }
1027
1028 #ifndef DISABLE_JIT
1029 #ifndef DISABLE_REMOTING
1030 static int
1031 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
1032 {
1033 int pos;
1034 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
1035 mono_mb_emit_byte (mb, CEE_LDIND_I);
1036 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
1037 mono_mb_emit_byte (mb, CEE_ADD);
1038 mono_mb_emit_byte (mb, CEE_LDIND_I);
1039 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1040 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
1041 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
1042 pos = mono_mb_emit_branch (mb, branch_code);
1043 return pos;
1044 }
1045
1046 static int
1047 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1048 {
1049 int pos;
1050 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1051 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1052 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1053 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1054 mono_mb_emit_icon (mb, -1);
1055 pos = mono_mb_emit_branch (mb, branch_code);
1056 return pos;
1057 }
1058
1059 static int
1060 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
1061 {
1062 static int offset = -1;
1063 static guint8 mask;
1064
1065 if (offset < 0)
1066 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
1067
1068 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
1069 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1070 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
1071 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1072 mono_mb_emit_ldflda (mb, offset);
1073 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1074 mono_mb_emit_icon (mb, mask);
1075 mono_mb_emit_byte (mb, CEE_AND);
1076 mono_mb_emit_icon (mb, 0);
1077 return mono_mb_emit_branch (mb, branch_code);
1078 }
1079 #endif /* DISABLE_REMOTING */
1080
1081 /*
1082 * mono_mb_emit_exception_marshal_directive:
1083 *
1084 * This function assumes ownership of MSG, which should be malloc-ed.
1085 */
1086 static void
1087 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1088 {
1089 char *s;
1090
1091 if (!mb->dynamic) {
1092 s = mono_image_strdup (mb->method->klass->image, msg);
1093 g_free (msg);
1094 } else {
1095 s = g_strdup (msg);
1096 }
1097 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1098 }
1099
1100 guint
1101 mono_type_to_ldind (MonoType *type)
1102 {
1103 if (type->byref)
1104 return CEE_LDIND_I;
1105
1106 handle_enum:
1107 switch (type->type) {
1108 case MONO_TYPE_I1:
1109 return CEE_LDIND_I1;
1110 case MONO_TYPE_U1:
1111 case MONO_TYPE_BOOLEAN:
1112 return CEE_LDIND_U1;
1113 case MONO_TYPE_I2:
1114 return CEE_LDIND_I2;
1115 case MONO_TYPE_U2:
1116 case MONO_TYPE_CHAR:
1117 return CEE_LDIND_U2;
1118 case MONO_TYPE_I4:
1119 return CEE_LDIND_I4;
1120 case MONO_TYPE_U4:
1121 return CEE_LDIND_U4;
1122 case MONO_TYPE_I:
1123 case MONO_TYPE_U:
1124 case MONO_TYPE_PTR:
1125 case MONO_TYPE_FNPTR:
1126 return CEE_LDIND_I;
1127 case MONO_TYPE_CLASS:
1128 case MONO_TYPE_STRING:
1129 case MONO_TYPE_OBJECT:
1130 case MONO_TYPE_SZARRAY:
1131 case MONO_TYPE_ARRAY:
1132 return CEE_LDIND_REF;
1133 case MONO_TYPE_I8:
1134 case MONO_TYPE_U8:
1135 return CEE_LDIND_I8;
1136 case MONO_TYPE_R4:
1137 return CEE_LDIND_R4;
1138 case MONO_TYPE_R8:
1139 return CEE_LDIND_R8;
1140 case MONO_TYPE_VALUETYPE:
1141 if (type->data.klass->enumtype) {
1142 type = mono_class_enum_basetype (type->data.klass);
1143 goto handle_enum;
1144 }
1145 return CEE_LDOBJ;
1146 case MONO_TYPE_TYPEDBYREF:
1147 return CEE_LDOBJ;
1148 case MONO_TYPE_GENERICINST:
1149 type = &type->data.generic_class->container_class->byval_arg;
1150 goto handle_enum;
1151 default:
1152 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1153 }
1154 return -1;
1155 }
1156
1157 guint
1158 mono_type_to_stind (MonoType *type)
1159 {
1160 if (type->byref)
1161 return CEE_STIND_I;
1162
1163 handle_enum:
1164 switch (type->type) {
1165 case MONO_TYPE_I1:
1166 case MONO_TYPE_U1:
1167 case MONO_TYPE_BOOLEAN:
1168 return CEE_STIND_I1;
1169 case MONO_TYPE_I2:
1170 case MONO_TYPE_U2:
1171 case MONO_TYPE_CHAR:
1172 return CEE_STIND_I2;
1173 case MONO_TYPE_I4:
1174 case MONO_TYPE_U4:
1175 return CEE_STIND_I4;
1176 case MONO_TYPE_I:
1177 case MONO_TYPE_U:
1178 case MONO_TYPE_PTR:
1179 case MONO_TYPE_FNPTR:
1180 return CEE_STIND_I;
1181 case MONO_TYPE_CLASS:
1182 case MONO_TYPE_STRING:
1183 case MONO_TYPE_OBJECT:
1184 case MONO_TYPE_SZARRAY:
1185 case MONO_TYPE_ARRAY:
1186 return CEE_STIND_REF;
1187 case MONO_TYPE_I8:
1188 case MONO_TYPE_U8:
1189 return CEE_STIND_I8;
1190 case MONO_TYPE_R4:
1191 return CEE_STIND_R4;
1192 case MONO_TYPE_R8:
1193 return CEE_STIND_R8;
1194 case MONO_TYPE_VALUETYPE:
1195 if (type->data.klass->enumtype) {
1196 type = mono_class_enum_basetype (type->data.klass);
1197 goto handle_enum;
1198 }
1199 return CEE_STOBJ;
1200 case MONO_TYPE_TYPEDBYREF:
1201 return CEE_STOBJ;
1202 case MONO_TYPE_GENERICINST:
1203 type = &type->data.generic_class->container_class->byval_arg;
1204 goto handle_enum;
1205 default:
1206 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1207 }
1208 return -1;
1209 }
1210
1211 static void
1212 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1213 {
1214 switch (conv) {
1215 case MONO_MARSHAL_CONV_BOOL_I4:
1216 mono_mb_emit_ldloc (mb, 1);
1217 mono_mb_emit_ldloc (mb, 0);
1218 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1219 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1220 mono_mb_emit_byte (mb, 3);
1221 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1222 mono_mb_emit_byte (mb, CEE_BR_S);
1223 mono_mb_emit_byte (mb, 1);
1224 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1225 mono_mb_emit_byte (mb, CEE_STIND_I1);
1226 break;
1227 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1228 mono_mb_emit_ldloc (mb, 1);
1229 mono_mb_emit_ldloc (mb, 0);
1230 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1231 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1232 mono_mb_emit_byte (mb, 3);
1233 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1234 mono_mb_emit_byte (mb, CEE_BR_S);
1235 mono_mb_emit_byte (mb, 1);
1236 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1237 mono_mb_emit_byte (mb, CEE_STIND_I1);
1238 break;
1239 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1240 MonoClass *eklass = NULL;
1241 int esize;
1242
1243 if (type->type == MONO_TYPE_SZARRAY) {
1244 eklass = type->data.klass;
1245 } else {
1246 g_assert_not_reached ();
1247 }
1248
1249 esize = mono_class_native_size (eklass, NULL);
1250
1251 /* create a new array */
1252 mono_mb_emit_ldloc (mb, 1);
1253 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1254 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1255 mono_mb_emit_byte (mb, CEE_STIND_I);
1256
1257 if (eklass->blittable) {
1258 /* copy the elements */
1259 mono_mb_emit_ldloc (mb, 1);
1260 mono_mb_emit_byte (mb, CEE_LDIND_I);
1261 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1262 mono_mb_emit_byte (mb, CEE_ADD);
1263 mono_mb_emit_ldloc (mb, 0);
1264 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1265 mono_mb_emit_byte (mb, CEE_PREFIX1);
1266 mono_mb_emit_byte (mb, CEE_CPBLK);
1267 }
1268 else {
1269 int array_var, src_var, dst_var, index_var;
1270 guint32 label2, label3;
1271
1272 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1273 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1274 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1275
1276 /* set array_var */
1277 mono_mb_emit_ldloc (mb, 1);
1278 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1279 mono_mb_emit_stloc (mb, array_var);
1280
1281 /* save the old src pointer */
1282 mono_mb_emit_ldloc (mb, 0);
1283 mono_mb_emit_stloc (mb, src_var);
1284 /* save the old dst pointer */
1285 mono_mb_emit_ldloc (mb, 1);
1286 mono_mb_emit_stloc (mb, dst_var);
1287
1288 /* Emit marshalling loop */
1289 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1290 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1291 mono_mb_emit_stloc (mb, index_var);
1292
1293 /* Loop header */
1294 label2 = mono_mb_get_label (mb);
1295 mono_mb_emit_ldloc (mb, index_var);
1296 mono_mb_emit_ldloc (mb, array_var);
1297 mono_mb_emit_byte (mb, CEE_LDLEN);
1298 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1299
1300 /* src is already set */
1301
1302 /* Set dst */
1303 mono_mb_emit_ldloc (mb, array_var);
1304 mono_mb_emit_ldloc (mb, index_var);
1305 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1306 mono_mb_emit_stloc (mb, 1);
1307
1308 /* Do the conversion */
1309 emit_struct_conv (mb, eklass, TRUE);
1310
1311 /* Loop footer */
1312 mono_mb_emit_add_to_local (mb, index_var, 1);
1313
1314 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1315
1316 mono_mb_patch_branch (mb, label3);
1317
1318 /* restore the old src pointer */
1319 mono_mb_emit_ldloc (mb, src_var);
1320 mono_mb_emit_stloc (mb, 0);
1321 /* restore the old dst pointer */
1322 mono_mb_emit_ldloc (mb, dst_var);
1323 mono_mb_emit_stloc (mb, 1);
1324 }
1325 break;
1326 }
1327 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1328 MonoClass *eclass = mono_defaults.char_class;
1329
1330 /* create a new array */
1331 mono_mb_emit_ldloc (mb, 1);
1332 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1333 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1334 mono_mb_emit_byte (mb, CEE_STIND_REF);
1335
1336 mono_mb_emit_ldloc (mb, 1);
1337 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1338 mono_mb_emit_ldloc (mb, 0);
1339 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1340 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1341 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1342 break;
1343 }
1344 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1345 mono_mb_emit_ldloc (mb, 1);
1346 mono_mb_emit_ldloc (mb, 0);
1347 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1348 mono_mb_emit_byte (mb, CEE_STIND_REF);
1349 break;
1350 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1351 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1352 mono_mb_emit_ldloc (mb, 1);
1353 mono_mb_emit_ldloc (mb, 0);
1354 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1355 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1356 } else {
1357 mono_mb_emit_ldloc (mb, 1);
1358 mono_mb_emit_ldloc (mb, 0);
1359 mono_mb_emit_icall (mb, mono_string_from_utf16);
1360 }
1361 mono_mb_emit_byte (mb, CEE_STIND_REF);
1362 break;
1363 case MONO_MARSHAL_CONV_STR_LPTSTR:
1364 mono_mb_emit_ldloc (mb, 1);
1365 mono_mb_emit_ldloc (mb, 0);
1366 mono_mb_emit_byte (mb, CEE_LDIND_I);
1367 #ifdef TARGET_WIN32
1368 mono_mb_emit_icall (mb, mono_string_from_utf16);
1369 #else
1370 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1371 #endif
1372 mono_mb_emit_byte (mb, CEE_STIND_REF);
1373 break;
1374 case MONO_MARSHAL_CONV_STR_LPSTR:
1375 mono_mb_emit_ldloc (mb, 1);
1376 mono_mb_emit_ldloc (mb, 0);
1377 mono_mb_emit_byte (mb, CEE_LDIND_I);
1378 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1379 mono_mb_emit_byte (mb, CEE_STIND_REF);
1380 break;
1381 case MONO_MARSHAL_CONV_STR_LPWSTR:
1382 mono_mb_emit_ldloc (mb, 1);
1383 mono_mb_emit_ldloc (mb, 0);
1384 mono_mb_emit_byte (mb, CEE_LDIND_I);
1385 mono_mb_emit_icall (mb, mono_string_from_utf16);
1386 mono_mb_emit_byte (mb, CEE_STIND_REF);
1387 break;
1388 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1389 MonoClass *klass = mono_class_from_mono_type (type);
1390 int src_var, dst_var;
1391
1392 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1393 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1394
1395 /* *dst = new object */
1396 mono_mb_emit_ldloc (mb, 1);
1397 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1398 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1399 mono_mb_emit_byte (mb, CEE_STIND_REF);
1400
1401 /* save the old src pointer */
1402 mono_mb_emit_ldloc (mb, 0);
1403 mono_mb_emit_stloc (mb, src_var);
1404 /* save the old dst pointer */
1405 mono_mb_emit_ldloc (mb, 1);
1406 mono_mb_emit_stloc (mb, dst_var);
1407
1408 /* dst = pointer to newly created object data */
1409 mono_mb_emit_ldloc (mb, 1);
1410 mono_mb_emit_byte (mb, CEE_LDIND_I);
1411 mono_mb_emit_icon (mb, sizeof (MonoObject));
1412 mono_mb_emit_byte (mb, CEE_ADD);
1413 mono_mb_emit_stloc (mb, 1);
1414
1415 emit_struct_conv (mb, klass, TRUE);
1416
1417 /* restore the old src pointer */
1418 mono_mb_emit_ldloc (mb, src_var);
1419 mono_mb_emit_stloc (mb, 0);
1420 /* restore the old dst pointer */
1421 mono_mb_emit_ldloc (mb, dst_var);
1422 mono_mb_emit_stloc (mb, 1);
1423 break;
1424 }
1425 case MONO_MARSHAL_CONV_DEL_FTN: {
1426 MonoClass *klass = mono_class_from_mono_type (type);
1427
1428 mono_mb_emit_ldloc (mb, 1);
1429 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1430 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1431 mono_mb_emit_ldloc (mb, 0);
1432 mono_mb_emit_byte (mb, CEE_LDIND_I);
1433 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1434 mono_mb_emit_byte (mb, CEE_STIND_REF);
1435 break;
1436 }
1437 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1438 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1439 break;
1440
1441 #ifndef DISABLE_COM
1442 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1443 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1444 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1445 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1446 break;
1447 #endif /* DISABLE_COM */
1448
1449 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1450 /*
1451 * Passing SafeHandles as ref does not allow the unmanaged code
1452 * to change the SafeHandle value. If the value is changed,
1453 * we should issue a diagnostic exception (NotSupportedException)
1454 * that informs the user that changes to handles in unmanaged code
1455 * is not supported.
1456 *
1457 * Since we currently have no access to the original
1458 * SafeHandle that was used during the marshalling,
1459 * for now we just ignore this, and ignore/discard any
1460 * changes that might have happened to the handle.
1461 */
1462 break;
1463 }
1464
1465 case MONO_MARSHAL_CONV_HANDLEREF: {
1466 /*
1467 * Passing HandleRefs in a struct that is ref()ed does not
1468 * copy the values back to the HandleRef
1469 */
1470 break;
1471 }
1472
1473 case MONO_MARSHAL_CONV_STR_BSTR:
1474 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1475 case MONO_MARSHAL_CONV_STR_TBSTR:
1476 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1477 default: {
1478 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1479
1480 mono_mb_emit_exception_marshal_directive (mb, msg);
1481 break;
1482 }
1483 }
1484 }
1485
1486 static gpointer
1487 conv_to_icall (MonoMarshalConv conv)
1488 {
1489 switch (conv) {
1490 case MONO_MARSHAL_CONV_STR_LPWSTR:
1491 return mono_marshal_string_to_utf16;
1492 case MONO_MARSHAL_CONV_LPWSTR_STR:
1493 return mono_string_from_utf16;
1494 case MONO_MARSHAL_CONV_LPTSTR_STR:
1495 return mono_string_new_wrapper;
1496 case MONO_MARSHAL_CONV_LPSTR_STR:
1497 return mono_string_new_wrapper;
1498 case MONO_MARSHAL_CONV_STR_LPTSTR:
1499 #ifdef TARGET_WIN32
1500 return mono_marshal_string_to_utf16;
1501 #else
1502 return mono_string_to_lpstr;
1503 #endif
1504 case MONO_MARSHAL_CONV_STR_LPSTR:
1505 return mono_string_to_lpstr;
1506 case MONO_MARSHAL_CONV_STR_BSTR:
1507 return mono_string_to_bstr;
1508 case MONO_MARSHAL_CONV_BSTR_STR:
1509 return mono_string_from_bstr;
1510 case MONO_MARSHAL_CONV_STR_TBSTR:
1511 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1512 return mono_string_to_ansibstr;
1513 case MONO_MARSHAL_CONV_SB_LPSTR:
1514 return mono_string_builder_to_utf8;
1515 case MONO_MARSHAL_CONV_SB_LPTSTR:
1516 #ifdef TARGET_WIN32
1517 return mono_string_builder_to_utf16;
1518 #else
1519 return mono_string_builder_to_utf8;
1520 #endif
1521 case MONO_MARSHAL_CONV_SB_LPWSTR:
1522 return mono_string_builder_to_utf16;
1523 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1524 return mono_array_to_savearray;
1525 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1526 return mono_array_to_lparray;
1527 case MONO_MARSHAL_FREE_LPARRAY:
1528 return mono_free_lparray;
1529 case MONO_MARSHAL_CONV_DEL_FTN:
1530 return mono_delegate_to_ftnptr;
1531 case MONO_MARSHAL_CONV_FTN_DEL:
1532 return mono_ftnptr_to_delegate;
1533 case MONO_MARSHAL_CONV_LPSTR_SB:
1534 return mono_string_utf8_to_builder;
1535 case MONO_MARSHAL_CONV_LPTSTR_SB:
1536 #ifdef TARGET_WIN32
1537 return mono_string_utf16_to_builder;
1538 #else
1539 return mono_string_utf8_to_builder;
1540 #endif
1541 case MONO_MARSHAL_CONV_LPWSTR_SB:
1542 return mono_string_utf16_to_builder;
1543 case MONO_MARSHAL_FREE_ARRAY:
1544 return mono_marshal_free_array;
1545 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1546 return mono_string_to_byvalstr;
1547 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1548 return mono_string_to_byvalwstr;
1549 default:
1550 g_assert_not_reached ();
1551 }
1552
1553 return NULL;
1554 }
1555
1556 static void
1557 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1558 {
1559 int pos;
1560
1561 switch (conv) {
1562 case MONO_MARSHAL_CONV_BOOL_I4:
1563 mono_mb_emit_ldloc (mb, 1);
1564 mono_mb_emit_ldloc (mb, 0);
1565 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1566 mono_mb_emit_byte (mb, CEE_STIND_I4);
1567 break;
1568 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1569 mono_mb_emit_ldloc (mb, 1);
1570 mono_mb_emit_ldloc (mb, 0);
1571 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1572 mono_mb_emit_byte (mb, CEE_NEG);
1573 mono_mb_emit_byte (mb, CEE_STIND_I2);
1574 break;
1575 case MONO_MARSHAL_CONV_STR_LPWSTR:
1576 case MONO_MARSHAL_CONV_STR_LPSTR:
1577 case MONO_MARSHAL_CONV_STR_LPTSTR:
1578 case MONO_MARSHAL_CONV_STR_BSTR:
1579 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1580 case MONO_MARSHAL_CONV_STR_TBSTR: {
1581 int pos;
1582
1583 /* free space if free == true */
1584 mono_mb_emit_ldloc (mb, 2);
1585 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1586 mono_mb_emit_ldloc (mb, 1);
1587 mono_mb_emit_byte (mb, CEE_LDIND_I);
1588 mono_mb_emit_icall (mb, g_free);
1589 mono_mb_patch_short_branch (mb, pos);
1590
1591 mono_mb_emit_ldloc (mb, 1);
1592 mono_mb_emit_ldloc (mb, 0);
1593 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1594 mono_mb_emit_icall (mb, conv_to_icall (conv));
1595 mono_mb_emit_byte (mb, CEE_STIND_I);
1596 break;
1597 }
1598 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1599 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1600 case MONO_MARSHAL_CONV_DEL_FTN:
1601 mono_mb_emit_ldloc (mb, 1);
1602 mono_mb_emit_ldloc (mb, 0);
1603 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1604 mono_mb_emit_icall (mb, conv_to_icall (conv));
1605 mono_mb_emit_byte (mb, CEE_STIND_I);
1606 break;
1607 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1608 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1609 g_assert (mspec);
1610
1611 mono_mb_emit_ldloc (mb, 1); /* dst */
1612 mono_mb_emit_ldloc (mb, 0);
1613 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1614 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1615 mono_mb_emit_icall (mb, conv_to_icall (conv));
1616 break;
1617 }
1618 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1619 MonoClass *eklass = NULL;
1620 int esize;
1621
1622 if (type->type == MONO_TYPE_SZARRAY) {
1623 eklass = type->data.klass;
1624 } else {
1625 g_assert_not_reached ();
1626 }
1627
1628 if (eklass->valuetype)
1629 esize = mono_class_native_size (eklass, NULL);
1630 else
1631 esize = sizeof (gpointer);
1632
1633 mono_mb_emit_ldloc (mb, 0);
1634 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1635 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1636
1637 if (eklass->blittable) {
1638 mono_mb_emit_ldloc (mb, 1);
1639 mono_mb_emit_ldloc (mb, 0);
1640 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1641 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1642 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1643 mono_mb_emit_byte (mb, CEE_PREFIX1);
1644 mono_mb_emit_byte (mb, CEE_CPBLK);
1645 } else {
1646 int array_var, src_var, dst_var, index_var;
1647 guint32 label2, label3;
1648
1649 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1650 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1651 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1652
1653 /* set array_var */
1654 mono_mb_emit_ldloc (mb, 0);
1655 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1656 mono_mb_emit_stloc (mb, array_var);
1657
1658 /* save the old src pointer */
1659 mono_mb_emit_ldloc (mb, 0);
1660 mono_mb_emit_stloc (mb, src_var);
1661 /* save the old dst pointer */
1662 mono_mb_emit_ldloc (mb, 1);
1663 mono_mb_emit_stloc (mb, dst_var);
1664
1665 /* Emit marshalling loop */
1666 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1667 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1668 mono_mb_emit_stloc (mb, index_var);
1669
1670 /* Loop header */
1671 label2 = mono_mb_get_label (mb);
1672 mono_mb_emit_ldloc (mb, index_var);
1673 mono_mb_emit_ldloc (mb, array_var);
1674 mono_mb_emit_byte (mb, CEE_LDLEN);
1675 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1676
1677 /* Set src */
1678 mono_mb_emit_ldloc (mb, array_var);
1679 mono_mb_emit_ldloc (mb, index_var);
1680 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1681 mono_mb_emit_stloc (mb, 0);
1682
1683 /* dst is already set */
1684
1685 /* Do the conversion */
1686 emit_struct_conv (mb, eklass, FALSE);
1687
1688 /* Loop footer */
1689 mono_mb_emit_add_to_local (mb, index_var, 1);
1690
1691 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1692
1693 mono_mb_patch_branch (mb, label3);
1694
1695 /* restore the old src pointer */
1696 mono_mb_emit_ldloc (mb, src_var);
1697 mono_mb_emit_stloc (mb, 0);
1698 /* restore the old dst pointer */
1699 mono_mb_emit_ldloc (mb, dst_var);
1700 mono_mb_emit_stloc (mb, 1);
1701 }
1702
1703 mono_mb_patch_branch (mb, pos);
1704 break;
1705 }
1706 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1707 mono_mb_emit_ldloc (mb, 0);
1708 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1709 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1710
1711 mono_mb_emit_ldloc (mb, 1);
1712 mono_mb_emit_ldloc (mb, 0);
1713 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1714 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1715 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1716 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1717 mono_mb_patch_short_branch (mb, pos);
1718 break;
1719 }
1720 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1721 int src_var, dst_var;
1722
1723 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1724 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1725
1726 mono_mb_emit_ldloc (mb, 0);
1727 mono_mb_emit_byte (mb, CEE_LDIND_I);
1728 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1729
1730 /* save the old src pointer */
1731 mono_mb_emit_ldloc (mb, 0);
1732 mono_mb_emit_stloc (mb, src_var);
1733 /* save the old dst pointer */
1734 mono_mb_emit_ldloc (mb, 1);
1735 mono_mb_emit_stloc (mb, dst_var);
1736
1737 /* src = pointer to object data */
1738 mono_mb_emit_ldloc (mb, 0);
1739 mono_mb_emit_byte (mb, CEE_LDIND_I);
1740 mono_mb_emit_icon (mb, sizeof (MonoObject));
1741 mono_mb_emit_byte (mb, CEE_ADD);
1742 mono_mb_emit_stloc (mb, 0);
1743
1744 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1745
1746 /* restore the old src pointer */
1747 mono_mb_emit_ldloc (mb, src_var);
1748 mono_mb_emit_stloc (mb, 0);
1749 /* restore the old dst pointer */
1750 mono_mb_emit_ldloc (mb, dst_var);
1751 mono_mb_emit_stloc (mb, 1);
1752
1753 mono_mb_patch_branch (mb, pos);
1754 break;
1755 }
1756
1757 #ifndef DISABLE_COM
1758 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1759 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1760 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1761 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1762 break;
1763 #endif /* DISABLE_COM */
1764
1765 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1766 int dar_release_slot, pos;
1767
1768 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1769
1770 /*
1771 * The following is ifdefed-out, because I have no way of doing the
1772 * DangerousRelease when destroying the structure
1773 */
1774 #if 0
1775 /* set release = false */
1776 mono_mb_emit_icon (mb, 0);
1777 mono_mb_emit_stloc (mb, dar_release_slot);
1778 if (!sh_dangerous_add_ref)
1779 init_safe_handle ();
1780
1781 /* safehandle.DangerousAddRef (ref release) */
1782 mono_mb_emit_ldloc (mb, 0); /* the source */
1783 mono_mb_emit_byte (mb, CEE_LDIND_I);
1784 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1785 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1786 #endif
1787 mono_mb_emit_ldloc (mb, 0);
1788 mono_mb_emit_byte (mb, CEE_LDIND_I);
1789 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1790 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1791 mono_mb_patch_branch (mb, pos);
1792
1793 /* Pull the handle field from SafeHandle */
1794 mono_mb_emit_ldloc (mb, 1);
1795 mono_mb_emit_ldloc (mb, 0);
1796 mono_mb_emit_byte (mb, CEE_LDIND_I);
1797 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
1798 mono_mb_emit_byte (mb, CEE_LDIND_I);
1799 mono_mb_emit_byte (mb, CEE_STIND_I);
1800 break;
1801 }
1802
1803 case MONO_MARSHAL_CONV_HANDLEREF: {
1804 mono_mb_emit_ldloc (mb, 1);
1805 mono_mb_emit_ldloc (mb, 0);
1806 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
1807 mono_mb_emit_byte (mb, CEE_ADD);
1808 mono_mb_emit_byte (mb, CEE_LDIND_I);
1809 mono_mb_emit_byte (mb, CEE_STIND_I);
1810 break;
1811 }
1812
1813 default: {
1814 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1815 MonoException *exc = mono_get_exception_not_implemented (msg);
1816 g_warning ("%s", msg);
1817 g_free (msg);
1818 mono_raise_exception (exc);
1819 }
1820 }
1821 }
1822
1823 static void
1824 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1825 MonoMarshalNative string_encoding)
1826 {
1827 MonoMarshalType *info;
1828 int i;
1829
1830 if (klass->parent)
1831 emit_struct_conv(mb, klass->parent, to_object);
1832
1833 info = mono_marshal_load_type_info (klass);
1834
1835 if (info->native_size == 0)
1836 return;
1837
1838 if (klass->blittable) {
1839 int msize = mono_class_value_size (klass, NULL);
1840 g_assert (msize == info->native_size);
1841 mono_mb_emit_ldloc (mb, 1);
1842 mono_mb_emit_ldloc (mb, 0);
1843 mono_mb_emit_icon (mb, msize);
1844 mono_mb_emit_byte (mb, CEE_PREFIX1);
1845 mono_mb_emit_byte (mb, CEE_CPBLK);
1846
1847 mono_mb_emit_add_to_local (mb, 0, msize);
1848 mono_mb_emit_add_to_local (mb, 1, msize);
1849 return;
1850 }
1851
1852 if (klass != mono_defaults.safehandle_class) {
1853 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1854 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1855 mono_type_full_name (&klass->byval_arg));
1856 mono_mb_emit_exception_marshal_directive (mb, msg);
1857 return;
1858 }
1859 }
1860
1861 for (i = 0; i < info->num_fields; i++) {
1862 MonoMarshalNative ntype;
1863 MonoMarshalConv conv;
1864 MonoType *ftype = info->fields [i].field->type;
1865 int msize = 0;
1866 int usize = 0;
1867 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1868
1869 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1870 continue;
1871
1872 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1873
1874 if (last_field) {
1875 msize = klass->instance_size - info->fields [i].field->offset;
1876 usize = info->native_size - info->fields [i].offset;
1877 } else {
1878 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1879 usize = info->fields [i + 1].offset - info->fields [i].offset;
1880 }
1881
1882 if (klass != mono_defaults.safehandle_class){
1883 /*
1884 * FIXME: Should really check for usize==0 and msize>0, but we apply
1885 * the layout to the managed structure as well.
1886 */
1887
1888 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1889 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1890 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1891 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1892 "reference field at the same offset as another field.",
1893 mono_type_full_name (&klass->byval_arg));
1894 }
1895 }
1896
1897 switch (conv) {
1898 case MONO_MARSHAL_CONV_NONE: {
1899 int t;
1900
1901 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1902 ftype->type == MONO_TYPE_U) {
1903 mono_mb_emit_ldloc (mb, 1);
1904 mono_mb_emit_ldloc (mb, 0);
1905 mono_mb_emit_byte (mb, CEE_LDIND_I);
1906 mono_mb_emit_byte (mb, CEE_STIND_I);
1907 break;
1908 }
1909
1910 handle_enum:
1911 t = ftype->type;
1912 switch (t) {
1913 case MONO_TYPE_I4:
1914 case MONO_TYPE_U4:
1915 case MONO_TYPE_I1:
1916 case MONO_TYPE_U1:
1917 case MONO_TYPE_BOOLEAN:
1918 case MONO_TYPE_I2:
1919 case MONO_TYPE_U2:
1920 case MONO_TYPE_CHAR:
1921 case MONO_TYPE_I8:
1922 case MONO_TYPE_U8:
1923 case MONO_TYPE_PTR:
1924 case MONO_TYPE_R4:
1925 case MONO_TYPE_R8:
1926 mono_mb_emit_ldloc (mb, 1);
1927 mono_mb_emit_ldloc (mb, 0);
1928 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1929 if (to_object) {
1930 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1931 mono_mb_emit_byte (mb, CEE_STIND_I2);
1932 } else {
1933 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1934 mono_mb_emit_byte (mb, CEE_STIND_I1);
1935 }
1936 } else {
1937 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1938 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1939 }
1940 break;
1941 case MONO_TYPE_VALUETYPE: {
1942 int src_var, dst_var;
1943
1944 if (ftype->data.klass->enumtype) {
1945 ftype = mono_class_enum_basetype (ftype->data.klass);
1946 goto handle_enum;
1947 }
1948
1949 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1950 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1951
1952 /* save the old src pointer */
1953 mono_mb_emit_ldloc (mb, 0);
1954 mono_mb_emit_stloc (mb, src_var);
1955 /* save the old dst pointer */
1956 mono_mb_emit_ldloc (mb, 1);
1957 mono_mb_emit_stloc (mb, dst_var);
1958
1959 emit_struct_conv (mb, ftype->data.klass, to_object);
1960
1961 /* restore the old src pointer */
1962 mono_mb_emit_ldloc (mb, src_var);
1963 mono_mb_emit_stloc (mb, 0);
1964 /* restore the old dst pointer */
1965 mono_mb_emit_ldloc (mb, dst_var);
1966 mono_mb_emit_stloc (mb, 1);
1967 break;
1968 }
1969 case MONO_TYPE_OBJECT: {
1970 #ifndef DISABLE_COM
1971 mono_init_com_types ();
1972 if (to_object) {
1973 static MonoMethod *variant_clear = NULL;
1974 static MonoMethod *get_object_for_native_variant = NULL;
1975
1976 if (!variant_clear)
1977 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
1978 if (!get_object_for_native_variant)
1979 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1980 mono_mb_emit_ldloc (mb, 1);
1981 mono_mb_emit_ldloc (mb, 0);
1982 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1983 mono_mb_emit_byte (mb, CEE_STIND_REF);
1984
1985 mono_mb_emit_ldloc (mb, 0);
1986 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1987 }
1988 else {
1989 static MonoMethod *get_native_variant_for_object = NULL;
1990
1991 if (!get_native_variant_for_object)
1992 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1993
1994 mono_mb_emit_ldloc (mb, 0);
1995 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1996 mono_mb_emit_ldloc (mb, 1);
1997 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1998 }
1999 #else
2000 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2001 mono_mb_emit_exception_marshal_directive (mb, msg);
2002 #endif
2003 break;
2004 }
2005
2006 default:
2007 g_warning ("marshaling type %02x not implemented", ftype->type);
2008 g_assert_not_reached ();
2009 }
2010 break;
2011 }
2012 default: {
2013 int src_var, dst_var;
2014
2015 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2016 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2017
2018 /* save the old src pointer */
2019 mono_mb_emit_ldloc (mb, 0);
2020 mono_mb_emit_stloc (mb, src_var);
2021 /* save the old dst pointer */
2022 mono_mb_emit_ldloc (mb, 1);
2023 mono_mb_emit_stloc (mb, dst_var);
2024
2025 if (to_object)
2026 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2027 else
2028 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2029
2030 /* restore the old src pointer */
2031 mono_mb_emit_ldloc (mb, src_var);
2032 mono_mb_emit_stloc (mb, 0);
2033 /* restore the old dst pointer */
2034 mono_mb_emit_ldloc (mb, dst_var);
2035 mono_mb_emit_stloc (mb, 1);
2036 }
2037 }
2038
2039 if (to_object) {
2040 mono_mb_emit_add_to_local (mb, 0, usize);
2041 mono_mb_emit_add_to_local (mb, 1, msize);
2042 } else {
2043 mono_mb_emit_add_to_local (mb, 0, msize);
2044 mono_mb_emit_add_to_local (mb, 1, usize);
2045 }
2046 }
2047 }
2048
2049 static void
2050 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2051 {
2052 emit_struct_conv_full (mb, klass, to_object, -1);
2053 }
2054
2055 static void
2056 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2057 {
2058 /* Call DestroyStructure */
2059 /* FIXME: Only do this if needed */
2060 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2061 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2062 mono_mb_emit_ldloc (mb, struct_var);
2063 mono_mb_emit_icall (mb, mono_struct_delete_old);
2064 }
2065
2066 static void
2067 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2068 {
2069 int pos_noabort;
2070
2071 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2072 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2073 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2074
2075 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2076 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2077
2078 mono_mb_emit_icall (mb, checkpoint_func);
2079
2080 mono_mb_patch_branch (mb, pos_noabort);
2081 }
2082
2083 static void
2084 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2085 {
2086 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2087 return;
2088
2089 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2090 }
2091
2092 static void
2093 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2094 {
2095 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2096 }
2097
2098 void
2099 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2100 {
2101 emit_thread_interrupt_checkpoint (mb);
2102 }
2103
2104 #endif /* DISABLE_JIT */
2105
2106 static MonoAsyncResult *
2107 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2108 {
2109 MonoMethodMessage *msg;
2110 MonoDelegate *async_callback;
2111 MonoMulticastDelegate *mcast_delegate;
2112 MonoObject *state;
2113 MonoMethod *im;
2114 MonoClass *klass;
2115 MonoMethod *method = NULL, *method2 = NULL;
2116
2117 g_assert (delegate);
2118 mcast_delegate = (MonoMulticastDelegate *) delegate;
2119 if (mcast_delegate->prev != NULL)
2120 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2121
2122 #ifndef DISABLE_REMOTING
2123 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2124
2125 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2126 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2127
2128 /* If the target is a proxy, make a direct call. Is proxy's work
2129 // to make the call asynchronous.
2130 */
2131 MonoAsyncResult *ares;
2132 MonoObject *exc;
2133 MonoArray *out_args;
2134 method = delegate->method;
2135
2136 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2137 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2138 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2139 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2140 MONO_OBJECT_SETREF (msg, async_result, ares);
2141 msg->call_type = CallType_BeginInvoke;
2142
2143 exc = NULL;
2144 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2145 if (exc)
2146 mono_raise_exception ((MonoException *) exc);
2147 return ares;
2148 }
2149 }
2150 #endif
2151
2152 klass = delegate->object.vtable->klass;
2153
2154 method = mono_get_delegate_invoke (klass);
2155 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2156 if (method2)
2157 method = method2;
2158 g_assert (method != NULL);
2159
2160 im = mono_get_delegate_invoke (method->klass);
2161 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2162
2163 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2164 }
2165
2166 #ifndef DISABLE_JIT
2167
2168 static int
2169 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2170 {
2171 int i, params_var, tmp_var;
2172
2173 /* allocate local (pointer) *params[] */
2174 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2175 /* allocate local (pointer) tmp */
2176 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2177
2178 /* alloate space on stack to store an array of pointers to the arguments */
2179 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2180 mono_mb_emit_byte (mb, CEE_PREFIX1);
2181 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2182 mono_mb_emit_stloc (mb, params_var);
2183
2184 /* tmp = params */
2185 mono_mb_emit_ldloc (mb, params_var);
2186 mono_mb_emit_stloc (mb, tmp_var);
2187
2188 if (save_this && sig->hasthis) {
2189 mono_mb_emit_ldloc (mb, tmp_var);
2190 mono_mb_emit_ldarg_addr (mb, 0);
2191 mono_mb_emit_byte (mb, CEE_STIND_I);
2192 /* tmp = tmp + sizeof (gpointer) */
2193 if (sig->param_count)
2194 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2195
2196 }
2197
2198 for (i = 0; i < sig->param_count; i++) {
2199 mono_mb_emit_ldloc (mb, tmp_var);
2200 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2201 mono_mb_emit_byte (mb, CEE_STIND_I);
2202 /* tmp = tmp + sizeof (gpointer) */
2203 if (i < (sig->param_count - 1))
2204 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2205 }
2206
2207 return params_var;
2208 }
2209
2210 #endif /* DISABLE_JIT */
2211
2212 static char*
2213 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2214 {
2215 int i;
2216 char *result;
2217 GString *res = g_string_new ("");
2218
2219 if (prefix) {
2220 g_string_append (res, prefix);
2221 g_string_append_c (res, '_');
2222 }
2223
2224 mono_type_get_desc (res, sig->ret, FALSE);
2225
2226 if (sig->hasthis)
2227 g_string_append (res, "__this__");
2228
2229 for (i = 0; i < sig->param_count; ++i) {
2230 g_string_append_c (res, '_');
2231 mono_type_get_desc (res, sig->params [i], FALSE);
2232 }
2233 result = res->str;
2234 g_string_free (res, FALSE);
2235 return result;
2236 }
2237
2238 /**
2239 * mono_marshal_get_string_encoding:
2240 *
2241 * Return the string encoding which should be used for a given parameter.
2242 */
2243 static MonoMarshalNative
2244 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2245 {
2246 /* First try the parameter marshal info */
2247 if (spec) {
2248 if (spec->native == MONO_NATIVE_LPARRAY) {
2249 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2250 return spec->data.array_data.elem_type;
2251 }
2252 else
2253 return spec->native;
2254 }
2255
2256 if (!piinfo)
2257 return MONO_NATIVE_LPSTR;
2258
2259 /* Then try the method level marshal info */
2260 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2261 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2262 return MONO_NATIVE_LPSTR;
2263 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2264 return MONO_NATIVE_LPWSTR;
2265 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2266 #ifdef TARGET_WIN32
2267 return MONO_NATIVE_LPWSTR;
2268 #else
2269 return MONO_NATIVE_LPSTR;
2270 #endif
2271 default:
2272 return MONO_NATIVE_LPSTR;
2273 }
2274 }
2275
2276 static MonoMarshalConv
2277 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2278 {
2279 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2280
2281 switch (encoding) {
2282 case MONO_NATIVE_LPWSTR:
2283 return MONO_MARSHAL_CONV_STR_LPWSTR;
2284 case MONO_NATIVE_LPSTR:
2285 case MONO_NATIVE_VBBYREFSTR:
2286 return MONO_MARSHAL_CONV_STR_LPSTR;
2287 case MONO_NATIVE_LPTSTR:
2288 return MONO_MARSHAL_CONV_STR_LPTSTR;
2289 case MONO_NATIVE_BSTR:
2290 return MONO_MARSHAL_CONV_STR_BSTR;
2291 default:
2292 return -1;
2293 }
2294 }
2295
2296 static MonoMarshalConv
2297 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2298 {
2299 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2300
2301 switch (encoding) {
2302 case MONO_NATIVE_LPWSTR:
2303 return MONO_MARSHAL_CONV_SB_LPWSTR;
2304 break;
2305 case MONO_NATIVE_LPSTR:
2306 return MONO_MARSHAL_CONV_SB_LPSTR;
2307 break;
2308 case MONO_NATIVE_LPTSTR:
2309 return MONO_MARSHAL_CONV_SB_LPTSTR;
2310 break;
2311 default:
2312 return -1;
2313 }
2314 }
2315
2316 static MonoMarshalConv
2317 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2318 {
2319 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2320
2321 *need_free = TRUE;
2322
2323 switch (encoding) {
2324 case MONO_NATIVE_LPWSTR:
2325 *need_free = FALSE;
2326 return MONO_MARSHAL_CONV_LPWSTR_STR;
2327 case MONO_NATIVE_LPSTR:
2328 case MONO_NATIVE_VBBYREFSTR:
2329 return MONO_MARSHAL_CONV_LPSTR_STR;
2330 case MONO_NATIVE_LPTSTR:
2331 return MONO_MARSHAL_CONV_LPTSTR_STR;
2332 case MONO_NATIVE_BSTR:
2333 return MONO_MARSHAL_CONV_BSTR_STR;
2334 default:
2335 return -1;
2336 }
2337 }
2338
2339 static MonoMarshalConv
2340 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2341 {
2342 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2343
2344 *need_free = TRUE;
2345
2346 switch (encoding) {
2347 case MONO_NATIVE_LPWSTR:
2348 /*
2349 * mono_string_builder_to_utf16 does not allocate a
2350 * new buffer, so no need to free it.
2351 */
2352 *need_free = FALSE;
2353 return MONO_MARSHAL_CONV_LPWSTR_SB;
2354 case MONO_NATIVE_LPSTR:
2355 return MONO_MARSHAL_CONV_LPSTR_SB;
2356 break;
2357 case MONO_NATIVE_LPTSTR:
2358 return MONO_MARSHAL_CONV_LPTSTR_SB;
2359 break;
2360 default:
2361 return -1;
2362 }
2363 }
2364
2365 /*
2366 * Return whenever a field of a native structure or an array member needs to
2367 * be freed.
2368 */
2369 static gboolean
2370 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2371 {
2372 MonoMarshalNative encoding;
2373 MonoMarshalConv conv;
2374
2375 switch (t->type) {
2376 case MONO_TYPE_VALUETYPE:
2377 /* FIXME: Optimize this */
2378 return TRUE;
2379 case MONO_TYPE_OBJECT:
2380 case MONO_TYPE_CLASS:
2381 if (t->data.klass == mono_defaults.stringbuilder_class) {
2382 gboolean need_free;
2383 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2384 return need_free;
2385 }
2386 return FALSE;
2387 case MONO_TYPE_STRING:
2388 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2389 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2390 default:
2391 return FALSE;
2392 }
2393 }
2394
2395 /*
2396 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2397 */
2398 static GHashTable*
2399 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2400 {
2401 if (!(*var)) {
2402 mono_marshal_lock ();
2403 if (!(*var)) {
2404 GHashTable *cache =
2405 g_hash_table_new (hash_func, equal_func);
2406 mono_memory_barrier ();
2407 *var = cache;
2408 }
2409 mono_marshal_unlock ();
2410 }
2411 return *var;
2412 }
2413
2414 static GHashTable*
2415 get_cache_full (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func, GDestroyNotify key_destroy_func, GDestroyNotify value_destroy_func)
2416 {
2417 if (!(*var)) {
2418 mono_marshal_lock ();
2419 if (!(*var)) {
2420 GHashTable *cache =
2421 g_hash_table_new_full (hash_func, equal_func, key_destroy_func, value_destroy_func);
2422 mono_memory_barrier ();
2423 *var = cache;
2424 }
2425 mono_marshal_unlock ();
2426 }
2427 return *var;
2428 }
2429
2430 GHashTable*
2431 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2432 {
2433 return get_cache (var, hash_func, equal_func);
2434 }
2435
2436 MonoMethod*
2437 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2438 {
2439 MonoMethod *res;
2440
2441 mono_marshal_lock ();
2442 res = g_hash_table_lookup (cache, key);
2443 mono_marshal_unlock ();
2444 return res;
2445 }
2446
2447 /* Create the method from the builder and place it in the cache */
2448 MonoMethod*
2449 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2450 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2451 int max_stack)
2452 {
2453 MonoMethod *res;
2454
2455 mono_marshal_lock ();
2456 res = g_hash_table_lookup (cache, key);
2457 mono_marshal_unlock ();
2458 if (!res) {
2459 MonoMethod *newm;
2460 newm = mono_mb_create_method (mb, sig, max_stack);
2461 mono_marshal_lock ();
2462 res = g_hash_table_lookup (cache, key);
2463 if (!res) {
2464 res = newm;
2465 g_hash_table_insert (cache, key, res);
2466 mono_marshal_set_wrapper_info (res, key);
2467 mono_marshal_unlock ();
2468 } else {
2469 mono_marshal_unlock ();
2470 mono_free_method (newm);
2471 }
2472 }
2473
2474 return res;
2475 }
2476
2477
2478 static inline MonoMethod*
2479 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2480 {
2481 MonoMethod *res = NULL;
2482 MonoRemotingMethods *wrps;
2483
2484 mono_marshal_lock ();
2485 if (method->klass->image->remoting_invoke_cache)
2486 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2487 else
2488 wrps = NULL;
2489
2490 if (wrps) {
2491 switch (wrapper_type) {
2492 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2493 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2494 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2495 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2496 }
2497 }
2498
2499 /* it is important to do the unlock after the load from wrps, since in
2500 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2501 * to take the loader lock and some other thread may set the fields.
2502 */
2503 mono_marshal_unlock ();
2504 return res;
2505 }
2506
2507 /* Create the method from the builder and place it in the cache */
2508 static inline MonoMethod*
2509 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2510 MonoMethodSignature *sig, int max_stack)
2511 {
2512 MonoMethod **res = NULL;
2513 MonoRemotingMethods *wrps;
2514 GHashTable *cache = get_cache_full (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL, NULL, g_free);
2515
2516 mono_marshal_lock ();
2517 wrps = g_hash_table_lookup (cache, key);
2518 if (!wrps) {
2519 wrps = g_new0 (MonoRemotingMethods, 1);
2520 g_hash_table_insert (cache, key, wrps);
2521 }
2522
2523 switch (mb->method->wrapper_type) {
2524 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2525 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2526 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2527 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2528 default: g_assert_not_reached (); break;
2529 }
2530 mono_marshal_unlock ();
2531
2532 if (*res == NULL) {
2533 MonoMethod *newm;
2534 newm = mono_mb_create_method (mb, sig, max_stack);
2535
2536 mono_marshal_lock ();
2537 if (!*res) {
2538 *res = newm;
2539 mono_marshal_set_wrapper_info (*res, key);
2540 mono_marshal_unlock ();
2541 } else {
2542 mono_marshal_unlock ();
2543 mono_free_method (newm);
2544 }
2545 }
2546
2547 return *res;
2548 }
2549
2550 MonoMethod *
2551 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2552 {
2553 gpointer res;
2554 int wrapper_type = wrapper->wrapper_type;
2555 WrapperInfo *info;
2556
2557 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2558 return wrapper;
2559
2560 switch (wrapper_type) {
2561 case MONO_WRAPPER_REMOTING_INVOKE:
2562 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2563 case MONO_WRAPPER_XDOMAIN_INVOKE:
2564 case MONO_WRAPPER_SYNCHRONIZED:
2565 case MONO_WRAPPER_UNBOX:
2566 res = mono_marshal_get_wrapper_info (wrapper);
2567 if (res == NULL)
2568 return wrapper;
2569 return res;
2570 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2571 info = mono_marshal_get_wrapper_info (wrapper);
2572 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT))
2573 return info->d.managed_to_native.method;
2574 else
2575 return NULL;
2576 case MONO_WRAPPER_RUNTIME_INVOKE:
2577 info = mono_marshal_get_wrapper_info (wrapper);
2578 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2579 return info->d.runtime_invoke.method;
2580 else
2581 return NULL;
2582 default:
2583 return NULL;
2584 }
2585 }
2586
2587 /*
2588 * mono_marshal_get_wrapper_info:
2589 *
2590 * Retrieve the pointer stored by mono_marshal_set_wrapper_info. The type of data
2591 * returned depends on the wrapper type. It is usually a method, a class, or a
2592 * WrapperInfo structure.
2593 */
2594 gpointer
2595 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2596 {
2597 g_assert (wrapper->wrapper_type);
2598
2599 return mono_method_get_wrapper_data (wrapper, 1);
2600 }
2601
2602 /*
2603 * mono_marshal_set_wrapper_info:
2604 *
2605 * Store an arbitrary pointer inside the wrapper which is retrievable by
2606 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2607 * wrapper (method->wrapper_type).
2608 */
2609 void
2610 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2611 {
2612 void **datav;
2613 /* assert */
2614 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2615 return;
2616
2617 datav = ((MonoMethodWrapper *)method)->method_data;
2618 datav [1] = data;
2619 }
2620
2621 static WrapperInfo*
2622 mono_wrapper_info_create (MonoMethod *wrapper, WrapperSubtype subtype)
2623 {
2624 WrapperInfo *info;
2625
2626 info = mono_image_alloc0 (wrapper->klass->image, sizeof (WrapperInfo));
2627 info->subtype = subtype;
2628 return info;
2629 }
2630
2631 /*
2632 * get_wrapper_target_class:
2633 *
2634 * Return the class where a wrapper method should be placed.
2635 */
2636 static MonoClass*
2637 get_wrapper_target_class (MonoImage *image)
2638 {
2639 MonoClass *klass;
2640
2641 /*
2642 * Notes:
2643 * - can't put all wrappers into an mscorlib class, because they reference
2644 * metadata (signature) so they should be put into the same image as the
2645 * method they wrap, so they are unloaded together.
2646 * - putting them into a class with a type initalizer could cause the
2647 * initializer to be executed which can be a problem if the wrappers are
2648 * shared.
2649 * - putting them into an inflated class can cause problems if the the
2650 * class is deleted because it references an image which is unloaded.
2651 * To avoid these problems, we put the wrappers into the <Module> class of
2652 * the image.
2653 */
2654 if (image->dynamic)
2655 klass = ((MonoDynamicImage*)image)->wrappers_type;
2656 else
2657 klass = mono_class_get (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1));
2658 g_assert (klass);
2659
2660 return klass;
2661 }
2662
2663 static MonoMethod*
2664 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2665 {
2666 MonoMethod *res;
2667 MonoMethod *inst, *def;
2668
2669 /*
2670 * Look for the instance
2671 */
2672 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2673 if (res)
2674 return res;
2675
2676 /*
2677 * Look for the definition
2678 */
2679 def = mono_marshal_find_in_cache (cache, def_method->klass);
2680 if (def) {
2681 inst = mono_class_inflate_generic_method (def, ctx);
2682 /* Cache it */
2683 mono_memory_barrier ();
2684 mono_marshal_lock ();
2685 res = g_hash_table_lookup (cache, orig_method->klass);
2686 if (!res) {
2687 g_hash_table_insert (cache, orig_method->klass, inst);
2688 res = inst;
2689 }
2690 mono_marshal_unlock ();
2691 return res;
2692 }
2693 return NULL;
2694 }
2695
2696 static MonoMethod*
2697 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2698 {
2699 MonoMethod *inst, *res;
2700
2701 /*
2702 * We use the same cache for the generic definition and the instances.
2703 */
2704 inst = mono_class_inflate_generic_method (def, ctx);
2705 mono_memory_barrier ();
2706 mono_marshal_lock ();
2707 res = g_hash_table_lookup (cache, orig_method->klass);
2708 if (!res) {
2709 g_hash_table_insert (cache, orig_method->klass, inst);
2710 res = inst;
2711 }
2712 mono_marshal_unlock ();
2713 return res;
2714 }
2715
2716 MonoMethod *
2717 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2718 {
2719 MonoMethodSignature *sig;
2720 MonoMethodBuilder *mb;
2721 MonoMethod *res;
2722 GHashTable *cache;
2723 int params_var;
2724 char *name;
2725 MonoGenericContext *ctx = NULL;
2726 MonoMethod *orig_method = NULL;
2727
2728 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2729 !strcmp (method->name, "BeginInvoke"));
2730
2731 /*
2732 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2733 */
2734 if (method->is_inflated) {
2735 orig_method = method;
2736 ctx = &((MonoMethodInflated*)method)->context;
2737 method = ((MonoMethodInflated*)method)->declaring;
2738 }
2739
2740 sig = mono_signature_no_pinvoke (method);
2741
2742 /*
2743 * Check cache
2744 */
2745 if (ctx) {
2746 cache = get_cache (&method->klass->image->delegate_begin_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2747 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2748 if (res)
2749 return res;
2750 } else {
2751 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2752 (GHashFunc)mono_signature_hash,
2753 (GCompareFunc)mono_metadata_signature_equal);
2754 if ((res = mono_marshal_find_in_cache (cache, sig)))
2755 return res;
2756 }
2757
2758 g_assert (sig->hasthis);
2759
2760 name = mono_signature_to_name (sig, "begin_invoke");
2761 if (ctx)
2762 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2763 else
2764 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2765 g_free (name);
2766
2767 #ifndef DISABLE_JIT
2768 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2769
2770 mono_mb_emit_ldarg (mb, 0);
2771 mono_mb_emit_ldloc (mb, params_var);
2772 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2773 mono_mb_emit_byte (mb, CEE_RET);
2774 #endif
2775
2776 if (ctx) {
2777 MonoMethod *def;
2778 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2779 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2780 } else {
2781 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2782 }
2783
2784 mono_mb_free (mb);
2785 return res;
2786 }
2787
2788 static MonoObject *
2789 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2790 {
2791 MonoDomain *domain = mono_domain_get ();
2792 MonoAsyncResult *ares;
2793 MonoMethod *method = NULL;
2794 MonoMethodSignature *sig;
2795 MonoMethodMessage *msg;
2796 MonoObject *res, *exc;
2797 MonoArray *out_args;
2798 MonoClass *klass;
2799
2800 g_assert (delegate);
2801
2802 if (!delegate->method_info) {
2803 g_assert (delegate->method);
2804 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2805 }
2806
2807 if (!delegate->method_info || !delegate->method_info->method)
2808 g_assert_not_reached ();
2809
2810 klass = delegate->object.vtable->klass;
2811
2812 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2813 g_assert (method != NULL);
2814
2815 sig = mono_signature_no_pinvoke (method);
2816
2817 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2818
2819 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2820 if (ares == NULL) {
2821 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingException", "The async result object is null or of an unexpected type."));
2822 return NULL;
2823 }
2824
2825 if (ares->async_delegate != (MonoObject*)delegate) {
2826 mono_raise_exception (mono_get_exception_invalid_operation (
2827 "The IAsyncResult object provided does not match this delegate."));
2828 return NULL;
2829 }
2830
2831 #ifndef DISABLE_REMOTING
2832 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2833 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2834 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2835 mono_message_init (domain, msg, delegate->method_info, NULL);
2836 msg->call_type = CallType_EndInvoke;
2837 MONO_OBJECT_SETREF (msg, async_result, ares);
2838 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2839 } else
2840 #endif
2841 {
2842 res = mono_thread_pool_finish (ares, &out_args, &exc);
2843 }
2844
2845 if (exc) {
2846 if (((MonoException*)exc)->stack_trace) {
2847 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2848 char *tmp;
2849 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2850 g_free (strace);
2851 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2852 g_free (tmp);
2853 }
2854 mono_raise_exception ((MonoException*)exc);
2855 }
2856
2857 mono_method_return_message_restore (method, params, out_args);
2858 return res;
2859 }
2860
2861 #ifndef DISABLE_JIT
2862
2863 static void
2864 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2865 {
2866 MonoType *t = mono_type_get_underlying_type (return_type);
2867
2868 if (return_type->byref)
2869 return_type = &mono_defaults.int_class->byval_arg;
2870
2871 switch (t->type) {
2872 case MONO_TYPE_VOID:
2873 g_assert_not_reached ();
2874 break;
2875 case MONO_TYPE_PTR:
2876 case MONO_TYPE_STRING:
2877 case MONO_TYPE_CLASS:
2878 case MONO_TYPE_OBJECT:
2879 case MONO_TYPE_ARRAY:
2880 case MONO_TYPE_SZARRAY:
2881 /* nothing to do */
2882 break;
2883 case MONO_TYPE_U1:
2884 case MONO_TYPE_BOOLEAN:
2885 case MONO_TYPE_I1:
2886 case MONO_TYPE_U2:
2887 case MONO_TYPE_CHAR:
2888 case MONO_TYPE_I2:
2889 case MONO_TYPE_I:
2890 case MONO_TYPE_U:
2891 case MONO_TYPE_I4:
2892 case MONO_TYPE_U4:
2893 case MONO_TYPE_U8:
2894 case MONO_TYPE_I8:
2895 case MONO_TYPE_R4:
2896 case MONO_TYPE_R8:
2897 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2898 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2899 break;
2900 case MONO_TYPE_GENERICINST:
2901 if (!mono_type_generic_inst_is_valuetype (t))
2902 break;
2903 /* fall through */
2904 case MONO_TYPE_VALUETYPE: {
2905 MonoClass *klass = mono_class_from_mono_type (return_type);
2906 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2907 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2908 break;
2909 }
2910 case MONO_TYPE_VAR:
2911 case MONO_TYPE_MVAR: {
2912 MonoClass *klass = mono_class_from_mono_type (return_type);
2913 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2914 break;
2915 }
2916 default:
2917 g_warning ("type 0x%x not handled", return_type->type);
2918 g_assert_not_reached ();
2919 }
2920
2921 mono_mb_emit_byte (mb, CEE_RET);
2922 }
2923
2924 #endif /* DISABLE_JIT */
2925
2926 MonoMethod *
2927 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2928 {
2929 MonoMethodSignature *sig;
2930 MonoMethodBuilder *mb;
2931 MonoMethod *res;
2932 GHashTable *cache;
2933 int params_var;
2934 char *name;
2935 MonoGenericContext *ctx = NULL;
2936 MonoMethod *orig_method = NULL;
2937
2938 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2939 !strcmp (method->name, "EndInvoke"));
2940
2941 /*
2942 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2943 */
2944 if (method->is_inflated) {
2945 orig_method = method;
2946 ctx = &((MonoMethodInflated*)method)->context;
2947 method = ((MonoMethodInflated*)method)->declaring;
2948 }
2949
2950 sig = mono_signature_no_pinvoke (method);
2951
2952 /*
2953 * Check cache
2954 */
2955 if (ctx) {
2956 cache = get_cache (&method->klass->image->delegate_end_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2957 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2958 if (res)
2959 return res;
2960 } else {
2961 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2962 (GHashFunc)mono_signature_hash,
2963 (GCompareFunc)mono_metadata_signature_equal);
2964 if ((res = mono_marshal_find_in_cache (cache, sig)))
2965 return res;
2966 }
2967
2968 g_assert (sig->hasthis);
2969
2970 name = mono_signature_to_name (sig, "end_invoke");
2971 if (ctx)
2972 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2973 else
2974 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2975 g_free (name);
2976
2977 #ifndef DISABLE_JIT
2978 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2979
2980 mono_mb_emit_ldarg (mb, 0);
2981 mono_mb_emit_ldloc (mb, params_var);
2982 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2983
2984 if (sig->ret->type == MONO_TYPE_VOID) {
2985 mono_mb_emit_byte (mb, CEE_POP);
2986 mono_mb_emit_byte (mb, CEE_RET);
2987 } else
2988 mono_mb_emit_restore_result (mb, sig->ret);
2989 #endif
2990
2991 if (ctx) {
2992 MonoMethod *def;
2993 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2994 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2995 } else {
2996 res = mono_mb_create_and_cache (cache, sig,
2997 mb, sig, sig->param_count + 16);
2998 }
2999 mono_mb_free (mb);
3000
3001 return res;
3002 }
3003
3004 #ifndef DISABLE_REMOTING
3005
3006 static MonoObject *
3007 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
3008 {
3009 MonoMethodMessage *msg;
3010 MonoTransparentProxy *this;
3011 MonoObject *res, *exc;
3012 MonoArray *out_args;
3013
3014 this = *((MonoTransparentProxy **)params [0]);
3015
3016 g_assert (this);
3017 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
3018
3019 /* skip the this pointer */
3020 params++;
3021
3022 if (mono_class_is_contextbound (this->remote_class->proxy_class) && this->rp->context == (MonoObject *) mono_context_get ())
3023 {
3024 int i;
3025 MonoMethodSignature *sig = mono_method_signature (method);
3026 int count = sig->param_count;
3027 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
3028
3029 for (i=0; i<count; i++) {
3030 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
3031 if (class->valuetype) {
3032 if (sig->params [i]->byref) {
3033 mparams[i] = *((gpointer *)params [i]);
3034 } else {
3035 /* runtime_invoke expects a boxed instance */
3036 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
3037 mparams[i] = mono_nullable_box (params [i], class);
3038 else
3039 mparams[i] = params [i];
3040 }
3041 } else {
3042 mparams[i] = *((gpointer**)params [i]);
3043 }
3044 }
3045
3046 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
3047 }
3048
3049 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
3050
3051 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
3052
3053 if (exc)
3054 mono_raise_exception ((MonoException *)exc);
3055
3056 mono_method_return_message_restore (method, params, out_args);
3057
3058 return res;
3059 }
3060
3061 MonoMethod *
3062 mono_marshal_get_remoting_invoke (MonoMethod *method)
3063 {
3064 MonoMethodSignature *sig;
3065 MonoMethodBuilder *mb;
3066 MonoMethod *res;
3067 int params_var;
3068
3069 g_assert (method);
3070
3071 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3072 return method;
3073
3074 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
3075 #ifndef DISABLE_COM
3076 if (mono_class_is_com_object (method->klass) || method->klass == mono_defaults.com_object_class) {
3077 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
3078 g_assert (vtable); /*FIXME do proper error handling*/
3079
3080 if (!mono_vtable_is_remote (vtable)) {
3081 return mono_cominterop_get_invoke (method);
3082 }
3083 }
3084 #endif
3085
3086 sig = mono_signature_no_pinvoke (method);
3087
3088 /* we cant remote methods without this pointer */
3089 if (!sig->hasthis)
3090 return method;
3091
3092 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
3093 return res;
3094
3095 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
3096
3097 #ifndef DISABLE_JIT
3098 mb->method->save_lmf = 1;
3099
3100 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
3101
3102 mono_mb_emit_ptr (mb, method);
3103 mono_mb_emit_ldloc (mb, params_var);
3104 mono_mb_emit_icall (mb, mono_remoting_wrapper);
3105 emit_thread_interrupt_checkpoint (mb);
3106
3107 if (sig->ret->type == MONO_TYPE_VOID) {
3108 mono_mb_emit_byte (mb, CEE_POP);
3109 mono_mb_emit_byte (mb, CEE_RET);
3110 } else {
3111 mono_mb_emit_restore_result (mb, sig->ret);
3112 }
3113 #endif
3114
3115 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3116 mono_mb_free (mb);
3117
3118 return res;
3119 }
3120
3121 #endif /* DISABLE_REMOTING */
3122
3123
3124 /* mono_get_xdomain_marshal_type()
3125 * Returns the kind of marshalling that a type needs for cross domain calls.
3126 */
3127 static MonoXDomainMarshalType
3128 mono_get_xdomain_marshal_type (MonoType *t)
3129 {
3130 switch (t->type) {
3131 case MONO_TYPE_VOID:
3132 g_assert_not_reached ();
3133 break;
3134 case MONO_TYPE_U1:
3135 case MONO_TYPE_I1:
3136 case MONO_TYPE_BOOLEAN:
3137 case MONO_TYPE_U2:
3138 case MONO_TYPE_I2:
3139 case MONO_TYPE_CHAR:
3140 case MONO_TYPE_U4:
3141 case MONO_TYPE_I4:
3142 case MONO_TYPE_I8:
3143 case MONO_TYPE_U8:
3144 case MONO_TYPE_R4:
3145 case MONO_TYPE_R8:
3146 return MONO_MARSHAL_NONE;
3147 case MONO_TYPE_STRING:
3148 return MONO_MARSHAL_COPY;
3149 case MONO_TYPE_ARRAY:
3150 case MONO_TYPE_SZARRAY: {
3151 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
3152 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
3153 return MONO_MARSHAL_COPY;
3154 break;
3155 }
3156 }
3157
3158 return MONO_MARSHAL_SERIALIZE;
3159 }
3160
3161
3162 /* mono_marshal_xdomain_copy_value
3163 * Makes a copy of "val" suitable for the current domain.
3164 */
3165 MonoObject *
3166 mono_marshal_xdomain_copy_value (MonoObject *val)
3167 {
3168 MonoDomain *domain;
3169 if (val == NULL) return NULL;
3170
3171 domain = mono_domain_get ();
3172
3173 switch (mono_object_class (val)->byval_arg.type) {
3174 case MONO_TYPE_VOID:
3175 g_assert_not_reached ();
3176 break;
3177 case MONO_TYPE_U1:
3178 case MONO_TYPE_I1:
3179 case MONO_TYPE_BOOLEAN:
3180 case MONO_TYPE_U2:
3181 case MONO_TYPE_I2:
3182 case MONO_TYPE_CHAR:
3183 case MONO_TYPE_U4:
3184 case MONO_TYPE_I4:
3185 case MONO_TYPE_I8:
3186 case MONO_TYPE_U8:
3187 case MONO_TYPE_R4:
3188 case MONO_TYPE_R8: {
3189 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
3190 }
3191 case MONO_TYPE_STRING: {
3192 MonoString *str = (MonoString *) val;
3193 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
3194 }
3195 case MONO_TYPE_ARRAY:
3196 case MONO_TYPE_SZARRAY: {
3197 MonoArray *acopy;
3198 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
3199 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
3200 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
3201 if (mt == MONO_MARSHAL_COPY) {
3202 int i, len = mono_array_length (acopy);
3203 for (i = 0; i < len; i++) {
3204 MonoObject *item = mono_array_get (acopy, gpointer, i);
3205 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
3206 }
3207 }
3208 return (MonoObject *) acopy;
3209 }
3210 }
3211
3212 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
3213 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
3214 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
3215 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
3216 newsb->length = oldsb->length;
3217 newsb->max_capacity = (gint32)0x7fffffff;
3218 return (MonoObject *) newsb;
3219 }
3220 return NULL;
3221 }
3222
3223 /* mono_marshal_xdomain_copy_out_value()
3224 * Copies the contents of the src instance into the dst instance. src and dst
3225 * must have the same type, and if they are arrays, the same size.
3226 */
3227 static void
3228 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3229 {
3230 if (src == NULL || dst == NULL) return;
3231
3232 g_assert (mono_object_class (src) == mono_object_class (dst));
3233
3234 switch (mono_object_class (src)->byval_arg.type) {
3235 case MONO_TYPE_ARRAY:
3236 case MONO_TYPE_SZARRAY: {
3237 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3238 if (mt == MONO_MARSHAL_SERIALIZE) return;
3239 if (mt == MONO_MARSHAL_COPY) {
3240 int i, len = mono_array_length ((MonoArray *)dst);
3241 for (i = 0; i < len; i++) {
3242 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3243 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3244 }
3245 } else {
3246 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3247 }
3248 return;
3249 }
3250 }
3251
3252 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3253 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3254 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3255
3256 MONO_OBJECT_SETREF (dst_sb, str, mono_string_new_utf16 (mono_object_domain (dst), mono_string_chars (src_sb->str), mono_string_length (src_sb->str)));
3257 dst_sb->cached_str = NULL;
3258 dst_sb->length = src_sb->length;
3259 }
3260 }
3261
3262
3263 #if !(defined (DISABLE_JIT) || defined (DISABLE_REMOTING))
3264
3265 static void
3266 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3267 {
3268 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3269 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3270 }
3271
3272 static void
3273 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3274 {
3275 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3276 }
3277 #endif
3278
3279 #ifndef DISABLE_REMOTING
3280 /* mono_marshal_supports_fast_xdomain()
3281 * Returns TRUE if the method can use the fast xdomain wrapper.
3282 */
3283 static gboolean
3284 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3285 {
3286 return !mono_class_is_contextbound (method->klass) &&
3287 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3288 }
3289 #endif
3290
3291 static gint32
3292 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3293 {
3294 MonoDomain *current_domain = mono_domain_get ();
3295 MonoDomain *domain = mono_domain_get_by_id (id);
3296
3297 if (!domain || !mono_domain_set (domain, FALSE))
3298 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3299
3300 if (push)
3301 mono_thread_push_appdomain_ref (domain);
3302 else
3303 mono_thread_pop_appdomain_ref ();
3304
3305 return current_domain->domain_id;
3306 }
3307
3308 #if !(defined (DISABLE_JIT) || defined (DISABLE_REMOTING))
3309 static void
3310 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3311 {
3312 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3313 }
3314
3315 /* mono_marshal_emit_load_domain_method ()
3316 * Loads into the stack a pointer to the code of the provided method for
3317 * the current domain.
3318 */
3319 static void
3320 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3321 {
3322 /* We need a pointer to the method for the running domain (not the domain
3323 * that compiles the method).
3324 */
3325 mono_mb_emit_ptr (mb, method);
3326 mono_mb_emit_icall (mb, mono_compile_method);
3327 }
3328 #endif
3329
3330 /* mono_marshal_check_domain_image ()
3331 * Returns TRUE if the image is loaded in the specified
3332 * application domain.
3333 */
3334 static gboolean
3335 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3336 {
3337 MonoAssembly* ass;
3338 GSList *tmp;
3339
3340 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3341 if (!domain)
3342 return FALSE;
3343
3344 mono_domain_assemblies_lock (domain);
3345 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3346 ass = tmp->data;
3347 if (ass->image == image)
3348 break;
3349 }
3350 mono_domain_assemblies_unlock (domain);
3351
3352 return tmp != NULL;
3353 }
3354
3355 #ifndef DISABLE_REMOTING
3356
3357 /* mono_marshal_get_xappdomain_dispatch ()
3358 * Generates a method that dispatches a method call from another domain into
3359 * the current domain.
3360 */
3361 static MonoMethod *
3362 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3363 {
3364 MonoMethodSignature *sig, *csig;
3365 MonoMethodBuilder *mb;
3366 MonoMethod *res;
3367 int i, j, param_index, copy_locals_base;
3368 MonoClass *ret_class = NULL;
3369 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3370 MonoExceptionClause *main_clause;
3371 int pos, pos_leave;
3372 gboolean copy_return;
3373
3374 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3375 return res;
3376
3377 sig = mono_method_signature (method);
3378 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3379
3380 j = 0;
3381 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3382 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3383 csig->params [j++] = &byte_array_class->this_arg;
3384 csig->params [j++] = &byte_array_class->this_arg;
3385 for (i = 0; i < sig->param_count; i++) {
3386 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3387 csig->params [j++] = sig->params [i];
3388 }
3389 if (copy_return)
3390 csig->ret = sig->ret;
3391 else
3392 csig->ret = &mono_defaults.void_class->byval_arg;
3393 csig->pinvoke = 1;
3394 csig->hasthis = FALSE;
3395
3396 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3397 mb->method->save_lmf = 1;
3398
3399 #ifndef DISABLE_JIT
3400 /* Locals */
3401
3402 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3403 if (complex_count > 0)
3404 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3405 if (sig->ret->type != MONO_TYPE_VOID) {
3406 loc_return = mono_mb_add_local (mb, sig->ret);
3407 ret_class = mono_class_from_mono_type (sig->ret);
3408 }
3409
3410 /* try */
3411
3412 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3413 main_clause->try_offset = mono_mb_get_label (mb);
3414
3415 /* Clean the call context */
3416
3417 mono_mb_emit_byte (mb, CEE_LDNULL);
3418 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3419 mono_mb_emit_byte (mb, CEE_POP);
3420
3421 /* Deserialize call data */
3422
3423 mono_mb_emit_ldarg (mb, 1);
3424 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3425 mono_mb_emit_byte (mb, CEE_DUP);
3426 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3427
3428 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3429 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3430
3431 if (complex_count > 0)
3432 mono_mb_emit_stloc (mb, loc_array);
3433 else
3434 mono_mb_emit_byte (mb, CEE_POP);
3435
3436 mono_mb_patch_short_branch (mb, pos);
3437
3438 /* Get the target object */
3439
3440 mono_mb_emit_ldarg (mb, 0);
3441 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3442
3443 /* Load the arguments */
3444
3445 copy_locals_base = mb->locals;
3446 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3447 j = 0;
3448 for (i = 0; i < sig->param_count; i++) {
3449 MonoType *pt = sig->params [i];
3450 MonoClass *pclass = mono_class_from_mono_type (pt);
3451 switch (marshal_types [i]) {
3452 case MONO_MARSHAL_SERIALIZE: {
3453 /* take the value from the serialized array */
3454 mono_mb_emit_ldloc (mb, loc_array);
3455 mono_mb_emit_icon (mb, j++);
3456 if (pt->byref) {
3457 if (pclass->valuetype) {
3458 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3459 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3460 } else {
3461 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3462 }
3463 } else {
3464 if (pclass->valuetype) {
3465 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3466 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3467 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3468 } else {
3469 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3470 if (pclass != mono_defaults.object_class) {
3471 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3472 }
3473 }
3474 }
3475 break;
3476 }
3477 case MONO_MARSHAL_COPY_OUT: {
3478 /* Keep a local copy of the value since we need to copy it back after the call */
3479 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3480 mono_mb_emit_ldarg (mb, param_index++);
3481 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3482 mono_mb_emit_byte (mb, CEE_DUP);
3483 mono_mb_emit_stloc (mb, copy_local);
3484 break;
3485 }
3486 case MONO_MARSHAL_COPY: {
3487 mono_mb_emit_ldarg (mb, param_index);
3488 if (pt->byref) {
3489 mono_mb_emit_byte (mb, CEE_DUP);
3490 mono_mb_emit_byte (mb, CEE_DUP);
3491 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3492 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3493 mono_mb_emit_byte (mb, CEE_STIND_REF);
3494 } else {
3495 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3496 }
3497 param_index++;
3498 break;
3499 }
3500 case MONO_MARSHAL_NONE:
3501 mono_mb_emit_ldarg (mb, param_index++);
3502 break;
3503 }
3504 }
3505
3506 /* Make the call to the real object */
3507
3508 emit_thread_force_interrupt_checkpoint (mb);
3509
3510 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3511
3512 if (sig->ret->type != MONO_TYPE_VOID)
3513 mono_mb_emit_stloc (mb, loc_return);
3514
3515 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3516
3517 j = 0;
3518 param_index = 3;
3519 for (i = 0; i < sig->param_count; i++) {
3520 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3521 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3522 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3523 mono_mb_emit_ldarg (mb, param_index);
3524 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3525 }
3526 param_index++;
3527 }
3528
3529 /* Serialize the return values */
3530
3531 if (complex_out_count > 0) {
3532 /* Reset parameters in the array that don't need to be serialized back */
3533 j = 0;
3534 for (i = 0; i < sig->param_count; i++) {
3535 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3536 if (!sig->params [i]->byref) {
3537 mono_mb_emit_ldloc (mb, loc_array);
3538 mono_mb_emit_icon (mb, j);
3539 mono_mb_emit_byte (mb, CEE_LDNULL);
3540 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3541 }
3542 j++;
3543 }
3544
3545 /* Add the return value to the array */
3546
3547 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3548 mono_mb_emit_ldloc (mb, loc_array);
3549 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3550 mono_mb_emit_ldloc (mb, loc_return);
3551
3552 g_assert (ret_class); /*FIXME properly fail here*/
3553 if (ret_class->valuetype) {
3554 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3555 }
3556 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3557 }
3558
3559 /* Serialize */
3560
3561 mono_mb_emit_ldarg (mb, 1);
3562 mono_mb_emit_ldloc (mb, loc_array);
3563 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3564 mono_mb_emit_byte (mb, CEE_STIND_REF);
3565 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3566 mono_mb_emit_ldarg (mb, 1);
3567 mono_mb_emit_ldloc (mb, loc_return);
3568 if (ret_class->valuetype) {
3569 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3570 }
3571 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3572 mono_mb_emit_byte (mb, CEE_STIND_REF);
3573 } else {
3574 mono_mb_emit_ldarg (mb, 1);
3575 mono_mb_emit_byte (mb, CEE_LDNULL);
3576 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3577 mono_mb_emit_byte (mb, CEE_STIND_REF);
3578 }
3579
3580 mono_mb_emit_ldarg (mb, 2);
3581 mono_mb_emit_byte (mb, CEE_LDNULL);
3582 mono_mb_emit_byte (mb, CEE_STIND_REF);
3583 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3584
3585 /* Main exception catch */
3586 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3587 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3588 main_clause->data.catch_class = mono_defaults.object_class;
3589
3590 /* handler code */
3591 main_clause->handler_offset = mono_mb_get_label (mb);
3592 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3593 mono_mb_emit_stloc (mb, loc_serialized_exc);
3594 mono_mb_emit_ldarg (mb, 2);
3595 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3596 mono_mb_emit_byte (mb, CEE_STIND_REF);
3597 mono_mb_emit_branch (mb, CEE_LEAVE);
3598 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3599 /* end catch */
3600
3601 mono_mb_patch_branch (mb, pos_leave);
3602
3603 if (copy_return)
3604 mono_mb_emit_ldloc (mb, loc_return);
3605
3606 mono_mb_emit_byte (mb, CEE_RET);
3607
3608 mono_mb_set_clauses (mb, 1, main_clause);
3609 #endif
3610
3611 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3612 mono_mb_free (mb);
3613
3614 return res;
3615 }
3616
3617 /* mono_marshal_get_xappdomain_invoke ()
3618 * Generates a fast remoting wrapper for cross app domain calls.
3619 */
3620 MonoMethod *
3621 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3622 {
3623 MonoMethodSignature *sig;
3624 MonoMethodBuilder *mb;
3625 MonoMethod *res;
3626 int i, j, complex_count, complex_out_count, copy_locals_base;
3627 int *marshal_types;
3628 MonoClass *ret_class = NULL;
3629 MonoMethod *xdomain_method;
3630 int ret_marshal_type = MONO_MARSHAL_NONE;
3631 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3632 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3633 int pos, pos_dispatch, pos_noex;
3634 gboolean copy_return = FALSE;
3635
3636 g_assert (method);
3637
3638 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3639 return method;
3640
3641 /* we cant remote methods without this pointer */
3642 if (!mono_method_signature (method)->hasthis)
3643 return method;
3644
3645 if (!mono_marshal_supports_fast_xdomain (method))
3646 return mono_marshal_get_remoting_invoke (method);
3647
3648 mono_remoting_marshal_init ();
3649
3650 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3651 return res;
3652
3653 sig = mono_signature_no_pinvoke (method);
3654
3655 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3656 mb->method->save_lmf = 1;
3657
3658 /* Count the number of parameters that need to be serialized */
3659
3660 marshal_types = alloca (sizeof (int) * sig->param_count);
3661 complex_count = complex_out_count = 0;
3662 for (i = 0; i < sig->param_count; i++) {
3663 MonoType *ptype = sig->params[i];
3664 int mt = mono_get_xdomain_marshal_type (ptype);
3665
3666 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3667 * the copy will be made by reusing the original object instance
3668 */
3669 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3670 mt = MONO_MARSHAL_COPY_OUT;
3671 else if (mt == MONO_MARSHAL_SERIALIZE) {
3672 complex_count++;
3673 if (ptype->byref) complex_out_count++;
3674 }
3675 marshal_types [i] = mt;
3676 }
3677
3678 if (sig->ret->type != MONO_TYPE_VOID) {
3679 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3680 ret_class = mono_class_from_mono_type (sig->ret);
3681 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3682 }
3683
3684 /* Locals */
3685
3686 #ifndef DISABLE_JIT
3687 if (complex_count > 0)
3688 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3689 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3690 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3691 if (copy_return)
3692 loc_return = mono_mb_add_local (mb, sig->ret);
3693 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3694 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3695 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3696 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3697
3698 /* Save thread domain data */
3699
3700 mono_mb_emit_icall (mb, mono_context_get);
3701 mono_mb_emit_byte (mb, CEE_DUP);
3702 mono_mb_emit_stloc (mb, loc_context);
3703
3704 /* If the thread is not running in the default context, it needs to go
3705 * through the whole remoting sink, since the context is going to change
3706 */
3707 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3708 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3709
3710 /* Another case in which the fast path can't be used: when the target domain
3711 * has a different image for the same assembly.
3712 */
3713
3714 /* Get the target domain id */
3715
3716 mono_mb_emit_ldarg (mb, 0);
3717 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3718 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3719 mono_mb_emit_byte (mb, CEE_DUP);
3720 mono_mb_emit_stloc (mb, loc_real_proxy);
3721
3722 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3723 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3724 mono_mb_emit_stloc (mb, loc_domainid);
3725
3726 /* Check if the target domain has the same image for the required assembly */
3727
3728 mono_mb_emit_ldloc (mb, loc_domainid);
3729 mono_mb_emit_ptr (mb, method->klass->image);
3730 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3731 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3732
3733 /* Use the whole remoting sink to dispatch this message */
3734
3735 mono_mb_patch_short_branch (mb, pos);
3736
3737 mono_mb_emit_ldarg (mb, 0);
3738 for (i = 0; i < sig->param_count; i++)
3739 mono_mb_emit_ldarg (mb, i + 1);
3740
3741 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3742 mono_mb_emit_byte (mb, CEE_RET);
3743 mono_mb_patch_short_branch (mb, pos_dispatch);
3744
3745 /* Create the array that will hold the parameters to be serialized */
3746
3747 if (complex_count > 0) {
3748 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 */
3749 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3750
3751 j = 0;
3752 for (i = 0; i < sig->param_count; i++) {
3753 MonoClass *pclass;
3754 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3755 pclass = mono_class_from_mono_type (sig->params[i]);
3756 mono_mb_emit_byte (mb, CEE_DUP);
3757 mono_mb_emit_icon (mb, j);
3758 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3759 if (sig->params[i]->byref) {
3760 if (pclass->valuetype)
3761 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3762 else
3763 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3764 }
3765 if (pclass->valuetype)
3766 mono_mb_emit_op (mb, CEE_BOX, pclass);
3767 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3768 j++;
3769 }
3770 mono_mb_emit_stloc (mb, loc_array);
3771
3772 /* Serialize parameters */
3773
3774 mono_mb_emit_ldloc (mb, loc_array);
3775 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3776 mono_mb_emit_stloc (mb, loc_serialized_data);
3777 } else {
3778 mono_mb_emit_byte (mb, CEE_LDNULL);
3779 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3780 mono_mb_emit_stloc (mb, loc_serialized_data);
3781 }
3782
3783 /* switch domain */
3784
3785 mono_mb_emit_ldloc (mb, loc_domainid);
3786 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3787 mono_marshal_emit_switch_domain (mb);
3788 mono_mb_emit_stloc (mb, loc_old_domainid);
3789
3790 /* Load the arguments */
3791
3792 mono_mb_emit_ldloc (mb, loc_real_proxy);
3793 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3794 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3795
3796 copy_locals_base = mb->locals;
3797 for (i = 0; i < sig->param_count; i++) {
3798 switch (marshal_types [i]) {
3799 case MONO_MARSHAL_SERIALIZE:
3800 continue;
3801 case MONO_MARSHAL_COPY: {
3802 mono_mb_emit_ldarg (mb, i+1);
3803 if (sig->params [i]->byref) {
3804 /* make a local copy of the byref parameter. The real parameter
3805 * will be updated after the xdomain call
3806 */
3807 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3808 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3809 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3810 mono_mb_emit_stloc (mb, copy_local);
3811 mono_mb_emit_ldloc_addr (mb, copy_local);
3812 }
3813 break;
3814 }
3815 case MONO_MARSHAL_COPY_OUT:
3816 case MONO_MARSHAL_NONE:
3817 mono_mb_emit_ldarg (mb, i+1);
3818 break;
3819 }
3820 }
3821
3822 /* Make the call to the invoke wrapper in the target domain */
3823
3824 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3825 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3826 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3827
3828 if (copy_return)
3829 mono_mb_emit_stloc (mb, loc_return);
3830
3831 /* Switch domain */
3832
3833 mono_mb_emit_ldloc (mb, loc_old_domainid);
3834 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3835 mono_marshal_emit_switch_domain (mb);
3836 mono_mb_emit_byte (mb, CEE_POP);
3837
3838 /* Restore thread domain data */
3839
3840 mono_mb_emit_ldloc (mb, loc_context);
3841 mono_mb_emit_icall (mb, mono_context_set);
3842
3843 /* if (loc_serialized_exc != null) ... */
3844
3845 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3846 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3847
3848 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3849 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3850 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3851 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3852 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3853 mono_mb_emit_byte (mb, CEE_THROW);
3854 mono_mb_patch_short_branch (mb, pos_noex);
3855
3856 /* copy back non-serialized output parameters */
3857
3858 j = 0;
3859 for (i = 0; i < sig->param_count; i++) {
3860 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3861 mono_mb_emit_ldarg (mb, i + 1);
3862 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3863 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3864 mono_mb_emit_byte (mb, CEE_STIND_REF);
3865 }
3866
3867 /* Deserialize out parameters */
3868
3869 if (complex_out_count > 0) {
3870 mono_mb_emit_ldloc (mb, loc_serialized_data);
3871 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3872 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3873 mono_mb_emit_stloc (mb, loc_array);
3874
3875 /* Copy back output parameters and return type */
3876
3877 j = 0;
3878 for (i = 0; i < sig->param_count; i++) {
3879 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3880 if (sig->params[i]->byref) {
3881 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3882 mono_mb_emit_ldarg (mb, i + 1);
3883 mono_mb_emit_ldloc (mb, loc_array);
3884 mono_mb_emit_icon (mb, j);
3885 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3886 if (pclass->valuetype) {
3887 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3888 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3889 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3890 } else {
3891 if (pclass != mono_defaults.object_class)
3892 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3893 mono_mb_emit_byte (mb, CEE_STIND_REF);
3894 }
3895 }
3896 j++;
3897 }
3898
3899 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3900 mono_mb_emit_ldloc (mb, loc_array);
3901 mono_mb_emit_icon (mb, complex_count);
3902 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3903 if (ret_class->valuetype) {
3904 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3905 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3906 }
3907 }
3908 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3909 mono_mb_emit_ldloc (mb, loc_serialized_data);
3910 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3911 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3912 if (ret_class->valuetype) {
3913 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3914 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3915 } else if (ret_class != mono_defaults.object_class) {
3916 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3917 }
3918 } else {
3919 mono_mb_emit_ldloc (mb, loc_serialized_data);
3920 mono_mb_emit_byte (mb, CEE_DUP);
3921 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3922 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3923
3924 mono_mb_patch_short_branch (mb, pos);
3925 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3926 mono_mb_emit_byte (mb, CEE_POP);
3927 }
3928
3929 if (copy_return) {
3930 mono_mb_emit_ldloc (mb, loc_return);
3931 if (ret_marshal_type == MONO_MARSHAL_COPY)
3932 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3933 }
3934
3935 mono_mb_emit_byte (mb, CEE_RET);
3936 #endif /* DISABLE_JIT */
3937
3938 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3939 mono_mb_free (mb);
3940
3941 return res;
3942 }
3943
3944 MonoMethod *
3945 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3946 {
3947 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3948 return mono_marshal_get_xappdomain_invoke (method);
3949 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3950 #ifndef DISABLE_COM
3951 return mono_cominterop_get_invoke (method);
3952 #else
3953 g_assert_not_reached ();
3954 #endif
3955 } else {
3956 return mono_marshal_get_remoting_invoke (method);
3957 }
3958 /* Not erached */
3959 return NULL;
3960 }
3961
3962 G_GNUC_UNUSED static gpointer
3963 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3964 {
3965 if (rp->target_domain_id != -1)
3966 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3967 else
3968 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3969 }
3970
3971 MonoMethod *
3972 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3973 {
3974 MonoMethodSignature *sig;
3975 MonoMethodBuilder *mb;
3976 MonoMethod *res, *native;
3977 int i, pos, pos_rem;
3978
3979 g_assert (method);
3980
3981 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3982 return method;
3983
3984 /* we cant remote methods without this pointer */
3985 g_assert (mono_method_signature (method)->hasthis);
3986
3987 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3988 return res;
3989
3990 sig = mono_signature_no_pinvoke (method);
3991
3992 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3993
3994 #ifndef DISABLE_JIT
3995 for (i = 0; i <= sig->param_count; i++)
3996 mono_mb_emit_ldarg (mb, i);
3997
3998 mono_mb_emit_ldarg (mb, 0);
3999 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4000
4001 if (mono_marshal_supports_fast_xdomain (method)) {
4002 mono_mb_emit_ldarg (mb, 0);
4003 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4004
4005 /* wrapper for cross app domain calls */
4006 native = mono_marshal_get_xappdomain_invoke (method);
4007 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4008 mono_mb_emit_byte (mb, CEE_RET);
4009
4010 mono_mb_patch_branch (mb, pos_rem);
4011 }
4012 /* wrapper for normal remote calls */
4013 native = mono_marshal_get_remoting_invoke (method);
4014 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4015 mono_mb_emit_byte (mb, CEE_RET);
4016
4017 /* not a proxy */
4018 mono_mb_patch_branch (mb, pos);
4019 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
4020 mono_mb_emit_byte (mb, CEE_RET);
4021 #endif
4022
4023 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4024 mono_mb_free (mb);
4025
4026 return res;
4027 }
4028
4029 #endif /* DISABLE_REMOTING */
4030
4031 typedef struct
4032 {
4033 MonoMethodSignature *sig;
4034 MonoMethod *method;
4035 } SignatureMethodPair;
4036
4037 static guint
4038 signature_method_pair_hash (gconstpointer data)
4039 {
4040 SignatureMethodPair *pair = (SignatureMethodPair*)data;
4041
4042 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
4043 }
4044
4045 static gboolean
4046 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
4047 {
4048 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
4049 }
4050
4051 static gboolean
4052 signature_method_pair_matches_method (gpointer key, gpointer value, gpointer user_data)
4053 {
4054 SignatureMethodPair *pair = (SignatureMethodPair*)key;
4055 MonoMethod *method = (MonoMethod*)user_data;
4056
4057 return pair->method == method;
4058 }
4059
4060 static void
4061 free_signature_method_pair (SignatureMethodPair *pair)
4062 {
4063 g_free (pair);
4064 }
4065
4066 /*
4067 * the returned method invokes all methods in a multicast delegate.
4068 */
4069 MonoMethod *
4070 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
4071 {
4072 MonoMethodSignature *sig, *static_sig, *invoke_sig;
4073 int i;
4074 MonoMethodBuilder *mb;
4075 MonoMethod *res, *newm;
4076 GHashTable *cache;
4077 SignatureMethodPair key;
4078 SignatureMethodPair *new_key;
4079 int local_prev, local_target;
4080 int pos0;
4081 char *name;
4082 MonoMethod *target_method = NULL;
4083 MonoClass *target_class = NULL;
4084 gboolean callvirt = FALSE;
4085 gboolean closed_over_null = FALSE;
4086 gboolean static_method_with_first_arg_bound = FALSE;
4087 MonoGenericContext *ctx = NULL;
4088 MonoGenericContainer *container = NULL;
4089 MonoMethod *orig_method = NULL;
4090
4091 /*
4092 * If the delegate target is null, and the target method is not static, a virtual
4093 * call is made to that method with the first delegate argument as this. This is
4094 * a non-documented .NET feature.
4095 */
4096 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
4097 callvirt = TRUE;
4098 target_method = del->method;
4099 if (target_method->is_inflated) {
4100 MonoType *target_type;
4101
4102 g_assert (method->signature->hasthis);
4103 target_type = mono_class_inflate_generic_type (method->signature->params [0],
4104 mono_method_get_context (method));
4105 target_class = mono_class_from_mono_type (target_type);
4106 } else {
4107 target_class = del->method->klass;
4108 }
4109 }
4110
4111 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
4112 !strcmp (method->name, "Invoke"));
4113
4114 invoke_sig = sig = mono_signature_no_pinvoke (method);
4115
4116 if (callvirt)
4117 closed_over_null = sig->param_count == mono_method_signature (del->method)->param_count;
4118
4119 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
4120 invoke_sig = mono_method_signature (del->method);
4121 target_method = del->method;
4122 static_method_with_first_arg_bound = TRUE;
4123 }
4124
4125 /*
4126 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
4127 */
4128 if (method->is_inflated && !callvirt && !static_method_with_first_arg_bound) {
4129 orig_method = method;
4130 ctx = &((MonoMethodInflated*)method)->context;
4131 method = ((MonoMethodInflated*)method)->declaring;
4132
4133 container = mono_method_get_generic_container (method);
4134 if (!container)
4135 container = method->klass->generic_container;
4136 g_assert (container);
4137
4138 invoke_sig = sig = mono_signature_no_pinvoke (method);
4139 }
4140
4141 /*
4142 * Check cache
4143 */
4144 if (ctx) {
4145 cache = get_cache (&method->klass->image->delegate_invoke_generic_cache, mono_aligned_addr_hash, NULL);
4146 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
4147 if (res)
4148 return res;
4149 } else if (callvirt || static_method_with_first_arg_bound) {
4150 GHashTable **cache_ptr;
4151 if (static_method_with_first_arg_bound)
4152 cache_ptr = &method->klass->image->delegate_bound_static_invoke_cache;
4153 else
4154 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
4155
4156 /* We need to cache the signature+method pair */
4157 mono_marshal_lock ();
4158 if (!*cache_ptr)
4159 *cache_ptr = g_hash_table_new_full (signature_method_pair_hash, (GEqualFunc)signature_method_pair_equal, (GDestroyNotify)free_signature_method_pair, NULL);
4160 cache = *cache_ptr;
4161 key.sig = invoke_sig;
4162 key.method = target_method;
4163 res = g_hash_table_lookup (cache, &key);
4164 mono_marshal_unlock ();
4165 if (res)
4166 return res;
4167 } else {
4168 cache = get_cache (&method->klass->image->delegate_invoke_cache,
4169 (GHashFunc)mono_signature_hash,
4170 (GCompareFunc)mono_metadata_signature_equal);
4171 res = mono_marshal_find_in_cache (cache, sig);
4172 if (res)
4173 return res;
4174 }
4175
4176 static_sig = signature_dup (method->klass->image, sig);
4177 static_sig->hasthis = 0;
4178 if (!static_method_with_first_arg_bound)
4179 invoke_sig = static_sig;
4180
4181 name = mono_signature_to_name (sig, "invoke");
4182 if (ctx)
4183 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
4184 else
4185 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
4186 g_free (name);
4187
4188 #ifndef DISABLE_JIT
4189 /* allocate local 0 (object) */
4190 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4191 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4192
4193 g_assert (sig->hasthis);
4194
4195 /*
4196 * if (prev != null)
4197 * prev.Invoke( args .. );
4198 * return this.<target>( args .. );
4199 */
4200
4201 /* this wrapper can be used in unmanaged-managed transitions */
4202 emit_thread_interrupt_checkpoint (mb);
4203
4204 /* get this->prev */
4205 mono_mb_emit_ldarg (mb, 0);
4206 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
4207 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4208 mono_mb_emit_stloc (mb, local_prev);
4209 mono_mb_emit_ldloc (mb, local_prev);
4210
4211 /* if prev != null */
4212 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4213
4214 /* then recurse */
4215
4216 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4217 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
4218
4219 mono_mb_emit_ldloc (mb, local_prev);
4220 for (i = 0; i < sig->param_count; i++)
4221 mono_mb_emit_ldarg (mb, i + 1);
4222 if (ctx)
4223 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method (method, &container->context));
4224 else
4225 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4226 if (sig->ret->type != MONO_TYPE_VOID)
4227 mono_mb_emit_byte (mb, CEE_POP);
4228
4229 /* continued or prev == null */
4230 mono_mb_patch_branch (mb, pos0);
4231
4232 /* get this->target */
4233 mono_mb_emit_ldarg (mb, 0);
4234 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
4235 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4236 mono_mb_emit_stloc (mb, local_target);
4237
4238 /*static methods with bound first arg can have null target and still be bound*/
4239 if (!static_method_with_first_arg_bound) {
4240 /* if target != null */
4241 mono_mb_emit_ldloc (mb, local_target);
4242 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4243
4244 /* then call this->method_ptr nonstatic */
4245 if (callvirt) {
4246 // FIXME:
4247 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
4248 } else {
4249 mono_mb_emit_ldloc (mb, local_target);
4250 for (i = 0; i < sig->param_count; ++i)
4251 mono_mb_emit_ldarg (mb, i + 1);
4252 mono_mb_emit_ldarg (mb, 0);
4253 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4254 mono_mb_emit_byte (mb, CEE_LDIND_I );
4255 mono_mb_emit_op (mb, CEE_CALLI, sig);
4256
4257 mono_mb_emit_byte (mb, CEE_RET);
4258 }
4259
4260 /* else [target == null] call this->method_ptr static */
4261 mono_mb_patch_branch (mb, pos0);
4262 }
4263
4264 if (callvirt) {
4265 if (!closed_over_null) {
4266 mono_mb_emit_ldarg (mb, 1);
4267 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
4268 for (i = 1; i < sig->param_count; ++i)
4269 mono_mb_emit_ldarg (mb, i + 1);
4270 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
4271 } else {
4272 mono_mb_emit_byte (mb, CEE_LDNULL);
4273 for (i = 0; i < sig->param_count; ++i)
4274 mono_mb_emit_ldarg (mb, i + 1);
4275 mono_mb_emit_op (mb, CEE_CALL, target_method);
4276 }
4277 } else {
4278 if (static_method_with_first_arg_bound) {
4279 mono_mb_emit_ldloc (mb, local_target);
4280 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
4281 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
4282 }
4283 for (i = 0; i < sig->param_count; ++i)
4284 mono_mb_emit_ldarg (mb, i + 1);
4285 mono_mb_emit_ldarg (mb, 0);
4286 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4287 mono_mb_emit_byte (mb, CEE_LDIND_I );
4288 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
4289 }
4290
4291 mono_mb_emit_byte (mb, CEE_RET);
4292
4293 mb->skip_visibility = 1;
4294 #endif /* DISABLE_JIT */
4295
4296 if (ctx) {
4297 MonoMethod *def;
4298
4299 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
4300 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
4301 } else if (static_method_with_first_arg_bound || callvirt) {
4302 // From mono_mb_create_and_cache
4303 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
4304 /*We perform double checked locking, so must fence before publishing*/
4305 mono_memory_barrier ();
4306 mono_marshal_lock ();
4307 res = g_hash_table_lookup (cache, &key);
4308 if (!res) {
4309 res = newm;
4310 new_key = g_new0 (SignatureMethodPair, 1);
4311 *new_key = key;
4312 if (static_method_with_first_arg_bound)
4313 new_key->sig = signature_dup (del->method->klass->image, key.sig);
4314 g_hash_table_insert (cache, new_key, res);
4315 mono_marshal_set_wrapper_info (res, new_key);
4316 mono_marshal_unlock ();
4317 } else {
4318 mono_marshal_unlock ();
4319 mono_free_method (newm);
4320 }
4321 } else {
4322 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
4323 }
4324 mono_mb_free (mb);
4325
4326 return res;
4327 }
4328
4329 /*
4330 * signature_dup_add_this:
4331 *
4332 * Make a copy of @sig, adding an explicit this argument.
4333 */
4334 static MonoMethodSignature*
4335 signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
4336 {
4337 MonoMethodSignature *res;
4338 int i;
4339
4340 res = mono_metadata_signature_alloc (image, sig->param_count + 1);
4341 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
4342 res->param_count = sig->param_count + 1;
4343 res->hasthis = FALSE;
4344 for (i = sig->param_count - 1; i >= 0; i --)
4345 res->params [i + 1] = sig->params [i];
4346 res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
4347
4348 return res;
4349 }
4350
4351 typedef struct {
4352 MonoMethodSignature *ctor_sig;
4353 MonoMethodSignature *sig;
4354 } CtorSigPair;
4355
4356 /* protected by the marshal lock, contains CtorSigPair pointers */
4357 static GSList *strsig_list = NULL;
4358
4359 static MonoMethodSignature *
4360 lookup_string_ctor_signature (MonoMethodSignature *sig)
4361 {
4362 MonoMethodSignature *callsig;
4363 CtorSigPair *cs;
4364 GSList *item;
4365
4366 mono_marshal_lock ();
4367 callsig = NULL;
4368 for (item = strsig_list; item; item = item->next) {
4369 cs = item->data;
4370 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4371 * because it is lock-free.
4372 */
4373 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4374 callsig = cs->sig;
4375 break;
4376 }
4377 }
4378 mono_marshal_unlock ();
4379 return callsig;
4380 }
4381
4382 static MonoMethodSignature *
4383 add_string_ctor_signature (MonoMethod *method)
4384 {
4385 MonoMethodSignature *callsig;
4386 CtorSigPair *cs;
4387
4388 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4389 callsig->ret = &mono_defaults.string_class->byval_arg;
4390 cs = g_new (CtorSigPair, 1);
4391 cs->sig = callsig;
4392 cs->ctor_sig = mono_method_signature (method);
4393
4394 mono_marshal_lock ();
4395 strsig_list = g_slist_prepend (strsig_list, cs);
4396 mono_marshal_unlock ();
4397 return callsig;
4398 }
4399
4400 /*
4401 * mono_marshal_get_string_ctor_signature:
4402 *
4403 * Return the modified signature used by string ctors (they return the newly created
4404 * string).
4405 */
4406 MonoMethodSignature*
4407 mono_marshal_get_string_ctor_signature (MonoMethod *method)
4408 {
4409 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
4410 if (!sig)
4411 sig = add_string_ctor_signature (method);
4412
4413 return sig;
4414 }
4415
4416 static MonoType*
4417 get_runtime_invoke_type (MonoType *t, gboolean ret)
4418 {
4419 if (t->byref)
4420 /* Can't share this with 'I' as that needs another indirection */
4421 return t;
4422
4423 if (MONO_TYPE_IS_REFERENCE (t))
4424 return &mono_defaults.object_class->byval_arg;
4425
4426 if (ret)
4427 /* The result needs to be boxed */
4428 return t;
4429
4430 handle_enum:
4431 switch (t->type) {
4432 case MONO_TYPE_U1:
4433 return &mono_defaults.sbyte_class->byval_arg;
4434 case MONO_TYPE_U2:
4435 return &mono_defaults.int16_class->byval_arg;
4436 case MONO_TYPE_U4:
4437 return &mono_defaults.int32_class->byval_arg;
4438 case MONO_TYPE_U8:
4439 return &mono_defaults.int64_class->byval_arg;
4440 case MONO_TYPE_BOOLEAN:
4441 return &mono_defaults.sbyte_class->byval_arg;
4442 case MONO_TYPE_CHAR:
4443 return &mono_defaults.int16_class->byval_arg;
4444 case MONO_TYPE_U:
4445 case MONO_TYPE_PTR:
4446 return &mono_defaults.int_class->byval_arg;
4447 case MONO_TYPE_VALUETYPE:
4448 if (t->data.klass->enumtype) {
4449 t = mono_class_enum_basetype (t->data.klass);
4450 goto handle_enum;
4451 }
4452 return t;
4453 default:
4454 return t;
4455 }
4456 }
4457
4458 /*
4459 * mono_marshal_get_runtime_invoke_sig:
4460 *
4461 * Return a common signature used for sharing runtime invoke wrappers.
4462 */
4463 static MonoMethodSignature*
4464 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
4465 {
4466 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
4467 int i;
4468
4469 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
4470 for (i = 0; i < res->param_count; ++i)
4471 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
4472
4473 return res;
4474 }
4475
4476 static gboolean
4477 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4478 {
4479 /* Can't share wrappers which return a vtype since it needs to be boxed */
4480 if (sig1->ret != sig2->ret && !(MONO_TYPE_IS_REFERENCE (sig1->ret) && MONO_TYPE_IS_REFERENCE (sig2->ret)) && !mono_metadata_type_equal (sig1->ret, sig2->ret))
4481 return FALSE;
4482 else
4483 return mono_metadata_signature_equal (sig1, sig2);
4484 }
4485
4486 #ifndef DISABLE_JIT
4487
4488 /*
4489 * emit_invoke_call:
4490 *
4491 * Emit the call to the wrapper method from a runtime invoke wrapper.
4492 */
4493 static void
4494 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
4495 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4496 int loc_res,
4497 gboolean virtual, gboolean need_direct_wrapper)
4498 {
4499 static MonoString *string_dummy = NULL;
4500 int i;
4501 int *tmp_nullable_locals;
4502 gboolean void_ret = FALSE;
4503
4504 /* to make it work with our special string constructors */
4505 if (!string_dummy) {
4506 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
4507 string_dummy = mono_string_new_wrapper ("dummy");
4508 }
4509
4510 if (virtual) {
4511 g_assert (sig->hasthis);
4512 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4513 }
4514
4515 if (sig->hasthis) {
4516 if (method->string_ctor) {
4517 if (mono_gc_is_moving ()) {
4518 mono_mb_emit_ptr (mb, &string_dummy);
4519 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4520 } else {
4521 mono_mb_emit_ptr (mb, string_dummy);
4522 }
4523 } else {
4524 mono_mb_emit_ldarg (mb, 0);
4525 }
4526 }
4527
4528 tmp_nullable_locals = g_new0 (int, sig->param_count);
4529
4530 for (i = 0; i < sig->param_count; i++) {
4531 MonoType *t = sig->params [i];
4532 int type;
4533
4534 mono_mb_emit_ldarg (mb, 1);
4535 if (i) {
4536 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4537 mono_mb_emit_byte (mb, CEE_ADD);
4538 }
4539
4540 if (t->byref) {
4541 mono_mb_emit_byte (mb, CEE_LDIND_I);
4542 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4543 * So to make this work we unbox it to a local variablee and push a reference to that.
4544 */
4545 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4546 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4547
4548 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4549 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4550 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4551 }
4552 continue;
4553 }
4554
4555 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4556 type = sig->params [i]->type;
4557 handle_enum:
4558 switch (type) {
4559 case MONO_TYPE_I1:
4560 case MONO_TYPE_BOOLEAN:
4561 case MONO_TYPE_U1:
4562 case MONO_TYPE_I2:
4563 case MONO_TYPE_U2:
4564 case MONO_TYPE_CHAR:
4565 case MONO_TYPE_I:
4566 case MONO_TYPE_U:
4567 case MONO_TYPE_I4:
4568 case MONO_TYPE_U4:
4569 case MONO_TYPE_R4:
4570 case MONO_TYPE_R8:
4571 case MONO_TYPE_I8:
4572 case MONO_TYPE_U8:
4573 mono_mb_emit_byte (mb, CEE_LDIND_I);
4574 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4575 break;
4576 case MONO_TYPE_STRING:
4577 case MONO_TYPE_CLASS:
4578 case MONO_TYPE_ARRAY:
4579 case MONO_TYPE_PTR:
4580 case MONO_TYPE_SZARRAY:
4581 case MONO_TYPE_OBJECT:
4582 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4583 break;
4584 case MONO_TYPE_GENERICINST:
4585 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4586 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4587 break;
4588 }
4589
4590 /* fall through */
4591 case MONO_TYPE_VALUETYPE:
4592 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4593 type = mono_class_enum_basetype (t->data.klass)->type;
4594 goto handle_enum;
4595 }
4596 mono_mb_emit_byte (mb, CEE_LDIND_I);
4597 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4598 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4599 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4600 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4601 } else {
4602 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4603 }
4604 break;
4605 default:
4606 g_assert_not_reached ();
4607 }
4608 }
4609
4610 if (virtual) {
4611 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4612 } else if (need_direct_wrapper) {
4613 mono_mb_emit_op (mb, CEE_CALL, method);
4614 } else {
4615 mono_mb_emit_ldarg (mb, 3);
4616 mono_mb_emit_calli (mb, callsig);
4617 }
4618
4619 if (sig->ret->byref) {
4620 /* fixme: */
4621 g_assert_not_reached ();
4622 }
4623
4624 switch (sig->ret->type) {
4625 case MONO_TYPE_VOID:
4626 if (!method->string_ctor)
4627 void_ret = TRUE;
4628 break;
4629 case MONO_TYPE_BOOLEAN:
4630 case MONO_TYPE_CHAR:
4631 case MONO_TYPE_I1:
4632 case MONO_TYPE_U1:
4633 case MONO_TYPE_I2:
4634 case MONO_TYPE_U2:
4635 case MONO_TYPE_I4:
4636 case MONO_TYPE_U4:
4637 case MONO_TYPE_I:
4638 case MONO_TYPE_U:
4639 case MONO_TYPE_R4:
4640 case MONO_TYPE_R8:
4641 case MONO_TYPE_I8:
4642 case MONO_TYPE_U8:
4643 case MONO_TYPE_VALUETYPE:
4644 case MONO_TYPE_TYPEDBYREF:
4645 case MONO_TYPE_GENERICINST:
4646 /* box value types */
4647 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4648 break;
4649 case MONO_TYPE_STRING:
4650 case MONO_TYPE_CLASS:
4651 case MONO_TYPE_ARRAY:
4652 case MONO_TYPE_SZARRAY:
4653 case MONO_TYPE_OBJECT:
4654 /* nothing to do */
4655 break;
4656 case MONO_TYPE_PTR:
4657 /* The result is an IntPtr */
4658 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4659 break;
4660 default:
4661 g_assert_not_reached ();
4662 }
4663
4664 if (!void_ret)
4665 mono_mb_emit_stloc (mb, loc_res);
4666
4667 /* Convert back nullable-byref arguments */
4668 for (i = 0; i < sig->param_count; i++) {
4669 MonoType *t = sig->params [i];
4670
4671 /*
4672 * Box the result and put it back into the array, the caller will have
4673 * to obtain it from there.
4674 */
4675 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4676 mono_mb_emit_ldarg (mb, 1);
4677 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4678 mono_mb_emit_byte (mb, CEE_ADD);
4679
4680 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4681 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4682
4683 mono_mb_emit_byte (mb, CEE_STIND_REF);
4684 }
4685 }
4686
4687 g_free (tmp_nullable_locals);
4688 }
4689
4690 static void
4691 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
4692 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4693 gboolean virtual, gboolean need_direct_wrapper)
4694 {
4695 gint32 labels [16];
4696 MonoExceptionClause *clause;
4697 int loc_res, loc_exc;
4698
4699 /* The wrapper looks like this:
4700 *
4701 * <interrupt check>
4702 * if (exc) {
4703 * try {
4704 * return <call>
4705 * } catch (Exception e) {
4706 * *exc = e;
4707 * }
4708 * } else {
4709 * return <call>
4710 * }
4711 */
4712
4713 /* allocate local 0 (object) tmp */
4714 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4715 /* allocate local 1 (object) exc */
4716 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4717
4718 /* *exc is assumed to be initialized to NULL by the caller */
4719
4720 mono_mb_emit_byte (mb, CEE_LDARG_2);
4721 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4722
4723 /*
4724 * if (exc) case
4725 */
4726 labels [1] = mono_mb_get_label (mb);
4727 emit_thread_force_interrupt_checkpoint (mb);
4728 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
4729
4730 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4731
4732 /* Add a try clause around the call */
4733 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4734 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4735 clause->data.catch_class = mono_defaults.exception_class;
4736 clause->try_offset = labels [1];
4737 clause->try_len = mono_mb_get_label (mb) - labels [1];
4738
4739 clause->handler_offset = mono_mb_get_label (mb);
4740
4741 /* handler code */
4742 mono_mb_emit_stloc (mb, loc_exc);
4743 mono_mb_emit_byte (mb, CEE_LDARG_2);
4744 mono_mb_emit_ldloc (mb, loc_exc);
4745 mono_mb_emit_byte (mb, CEE_STIND_REF);
4746
4747 mono_mb_emit_branch (mb, CEE_LEAVE);
4748
4749 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4750
4751 mono_mb_set_clauses (mb, 1, clause);
4752
4753 mono_mb_patch_branch (mb, labels [2]);
4754 mono_mb_emit_ldloc (mb, loc_res);
4755 mono_mb_emit_byte (mb, CEE_RET);
4756
4757 /*
4758 * if (!exc) case
4759 */
4760 mono_mb_patch_branch (mb, labels [0]);
4761 emit_thread_force_interrupt_checkpoint (mb);
4762 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
4763
4764 mono_mb_emit_ldloc (mb, 0);
4765 mono_mb_emit_byte (mb, CEE_RET);
4766 }
4767 #endif
4768
4769 /*
4770 * generates IL code for the runtime invoke function
4771 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4772 *
4773 * we also catch exceptions if exc != null
4774 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4775 * it means that the compiled code for METHOD does not have to be looked up
4776 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4777 * its METHOD argument.
4778 */
4779 MonoMethod *
4780 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
4781 {
4782 MonoMethodSignature *sig, *csig, *callsig;
4783 MonoMethodBuilder *mb;
4784 GHashTable *cache = NULL;
4785 MonoClass *target_klass;
4786 MonoMethod *res = NULL;
4787 static MonoMethodSignature *cctor_signature = NULL;
4788 static MonoMethodSignature *finalize_signature = NULL;
4789 char *name;
4790 const char *param_names [16];
4791 gboolean need_direct_wrapper = FALSE;
4792 WrapperInfo *info;
4793
4794 g_assert (method);
4795
4796 if (!cctor_signature) {
4797 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4798 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4799 }
4800 if (!finalize_signature) {
4801 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4802 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4803 finalize_signature->hasthis = 1;
4804 }
4805
4806 if (virtual)
4807 need_direct_wrapper = TRUE;
4808
4809 /*
4810 * Use a separate cache indexed by methods to speed things up and to avoid the
4811 * boundless mempool growth caused by the signature_dup stuff below.
4812 */
4813 if (virtual)
4814 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4815 else
4816 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4817 res = mono_marshal_find_in_cache (cache, method);
4818 if (res)
4819 return res;
4820
4821 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4822 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4823 /*
4824 * Array Get/Set/Address methods. The JIT implements them using inline code
4825 * so we need to create an invoke wrapper which calls the method directly.
4826 */
4827 need_direct_wrapper = TRUE;
4828 }
4829
4830 if (method->string_ctor) {
4831 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4832 if (!callsig)
4833 callsig = add_string_ctor_signature (method);
4834 /* Can't share this as we push a string as this */
4835 need_direct_wrapper = TRUE;
4836 } else {
4837 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4838 /*
4839 * Valuetype methods receive a managed pointer as the this argument.
4840 * Create a new signature to reflect this.
4841 */
4842 callsig = signature_dup_add_this (method->klass->image, mono_method_signature (method), method->klass);
4843 /* Can't share this as it would be shared with static methods taking an IntPtr argument */
4844 need_direct_wrapper = TRUE;
4845 } else {
4846 if (method->dynamic)
4847 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4848 else
4849 callsig = mono_method_signature (method);
4850 }
4851 }
4852
4853 target_klass = get_wrapper_target_class (method->klass->image);
4854
4855 /* Try to share wrappers for non-corlib methods with simple signatures */
4856 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4857 callsig = cctor_signature;
4858 target_klass = mono_defaults.object_class;
4859 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4860 callsig = finalize_signature;
4861 target_klass = mono_defaults.object_class;
4862 }
4863
4864 if (need_direct_wrapper) {
4865 /* Already searched at the start */
4866 } else {
4867 MonoMethodSignature *tmp_sig;
4868
4869 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4870
4871 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4872 (GHashFunc)mono_signature_hash,
4873 (GCompareFunc)runtime_invoke_signature_equal);
4874
4875 /* from mono_marshal_find_in_cache */
4876 mono_marshal_lock ();
4877 res = g_hash_table_lookup (cache, callsig);
4878 mono_marshal_unlock ();
4879
4880 if (res) {
4881 g_free (callsig);
4882 return res;
4883 }
4884
4885 /* Make a copy of the signature from the image mempool */
4886 tmp_sig = callsig;
4887 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4888 g_free (tmp_sig);
4889 }
4890
4891 sig = mono_method_signature (method);
4892
4893 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4894
4895 csig->ret = &mono_defaults.object_class->byval_arg;
4896 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4897 csig->params [0] = callsig->params [0];
4898 else
4899 csig->params [0] = &mono_defaults.object_class->byval_arg;
4900 csig->params [1] = &mono_defaults.int_class->byval_arg;
4901 csig->params [2] = &mono_defaults.int_class->byval_arg;
4902 csig->params [3] = &mono_defaults.int_class->byval_arg;
4903 csig->pinvoke = 1;
4904 #if TARGET_WIN32
4905 /* This is called from runtime code so it has to be cdecl */
4906 csig->call_convention = MONO_CALL_C;
4907 #endif
4908
4909 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4910 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4911 g_free (name);
4912
4913 #ifndef DISABLE_JIT
4914 param_names [0] = "this";
4915 param_names [1] = "params";
4916 param_names [2] = "exc";
4917 param_names [3] = "method";
4918 mono_mb_set_param_names (mb, param_names);
4919
4920 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
4921 #endif
4922
4923 if (need_direct_wrapper) {
4924 #ifndef DISABLE_JIT
4925 mb->skip_visibility = 1;
4926 #endif
4927 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4928 info = mono_wrapper_info_create (res, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4929 info->d.runtime_invoke.method = method;
4930 mono_marshal_set_wrapper_info (res, info);
4931 } else {
4932 /* taken from mono_mb_create_and_cache */
4933 mono_marshal_lock ();
4934 res = g_hash_table_lookup (cache, callsig);
4935 mono_marshal_unlock ();
4936
4937 /* Somebody may have created it before us */
4938 if (!res) {
4939 MonoMethod *newm;
4940 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4941
4942 mono_marshal_lock ();
4943 res = g_hash_table_lookup (cache, callsig);
4944 if (!res) {
4945 res = newm;
4946 g_hash_table_insert (cache, callsig, res);
4947 /* Can't insert it into wrapper_hash since the key is a signature */
4948 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4949 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4950 info->d.runtime_invoke.sig = callsig;
4951 mono_marshal_set_wrapper_info (res, info);
4952 } else {
4953 mono_free_method (newm);
4954 }
4955 mono_marshal_unlock ();
4956 }
4957
4958 /* end mono_mb_create_and_cache */
4959 }
4960
4961 mono_mb_free (mb);
4962
4963 return res;
4964 }
4965
4966 /*
4967 * mono_marshal_get_runtime_invoke_dynamic:
4968 *
4969 * Return a method which can be used to invoke managed methods from native code
4970 * dynamically.
4971 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4972 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4973 * ARGS should point to an architecture specific structure containing
4974 * the arguments and space for the return value.
4975 * The other arguments are the same as for runtime_invoke (), except that
4976 * ARGS should contain the this argument too.
4977 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4978 * is only one copy of it, which is useful in full-aot.
4979 * The wrapper info for the wrapper is a WrapperInfo structure.
4980 */
4981 MonoMethod*
4982 mono_marshal_get_runtime_invoke_dynamic (void)
4983 {
4984 static MonoMethod *method;
4985 MonoMethodSignature *csig;
4986 MonoExceptionClause *clause;
4987 MonoMethodBuilder *mb;
4988 int pos, posna;
4989 char *name;
4990 WrapperInfo *info;
4991
4992 if (method)
4993 return method;
4994
4995 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4996
4997 csig->ret = &mono_defaults.void_class->byval_arg;
4998 csig->params [0] = &mono_defaults.int_class->byval_arg;
4999 csig->params [1] = &mono_defaults.int_class->byval_arg;
5000 csig->params [2] = &mono_defaults.int_class->byval_arg;
5001 csig->params [3] = &mono_defaults.int_class->byval_arg;
5002
5003 name = g_strdup ("runtime_invoke_dynamic");
5004 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
5005 g_free (name);
5006
5007 #ifndef DISABLE_JIT
5008 /* allocate local 0 (object) tmp */
5009 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5010 /* allocate local 1 (object) exc */
5011 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5012
5013 /* cond set *exc to null */
5014 mono_mb_emit_byte (mb, CEE_LDARG_1);
5015 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
5016 mono_mb_emit_byte (mb, 3);
5017 mono_mb_emit_byte (mb, CEE_LDARG_1);
5018 mono_mb_emit_byte (mb, CEE_LDNULL);
5019 mono_mb_emit_byte (mb, CEE_STIND_REF);
5020
5021 emit_thread_force_interrupt_checkpoint (mb);
5022
5023 mono_mb_emit_byte (mb, CEE_LDARG_0);
5024 mono_mb_emit_byte (mb, CEE_LDARG_2);
5025 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5026 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
5027
5028 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
5029
5030 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
5031 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
5032 clause->try_len = mono_mb_get_label (mb);
5033
5034 /* filter code */
5035 clause->data.filter_offset = mono_mb_get_label (mb);
5036
5037 mono_mb_emit_byte (mb, CEE_POP);
5038 mono_mb_emit_byte (mb, CEE_LDARG_1);
5039 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5040 mono_mb_emit_byte (mb, CEE_PREFIX1);
5041 mono_mb_emit_byte (mb, CEE_CGT_UN);
5042 mono_mb_emit_byte (mb, CEE_PREFIX1);
5043 mono_mb_emit_byte (mb, CEE_ENDFILTER);
5044
5045 clause->handler_offset = mono_mb_get_label (mb);
5046
5047 /* handler code */
5048 /* store exception */
5049 mono_mb_emit_stloc (mb, 1);
5050
5051 mono_mb_emit_byte (mb, CEE_LDARG_1);
5052 mono_mb_emit_ldloc (mb, 1);
5053 mono_mb_emit_byte (mb, CEE_STIND_REF);
5054
5055 mono_mb_emit_byte (mb, CEE_LDNULL);
5056 mono_mb_emit_stloc (mb, 0);
5057
5058 /* Check for the abort exception */
5059 mono_mb_emit_ldloc (mb, 1);
5060 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
5061 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
5062
5063 /* Delay the abort exception */
5064 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
5065
5066 mono_mb_patch_short_branch (mb, posna);
5067 mono_mb_emit_branch (mb, CEE_LEAVE);
5068
5069 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
5070
5071 mono_mb_set_clauses (mb, 1, clause);
5072
5073 /* return result */
5074 mono_mb_patch_branch (mb, pos);
5075 //mono_mb_emit_ldloc (mb, 0);
5076 mono_mb_emit_byte (mb, CEE_RET);
5077 #endif /* DISABLE_JIT */
5078
5079 mono_loader_lock ();
5080 /* double-checked locking */
5081 if (!method) {
5082 method = mono_mb_create_method (mb, csig, 16);
5083 info = mono_wrapper_info_create (method, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
5084 mono_marshal_set_wrapper_info (method, info);
5085 }
5086 mono_loader_unlock ();
5087
5088 mono_mb_free (mb);
5089
5090 return method;
5091 }
5092
5093 #ifndef DISABLE_JIT
5094 static void
5095 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
5096 {
5097 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
5098 klass->name_space, klass->name);
5099
5100 mono_mb_emit_exception_marshal_directive (mb, msg);
5101 }
5102 #endif
5103
5104 #ifndef DISABLE_REMOTING
5105 /*
5106 * mono_marshal_get_ldfld_remote_wrapper:
5107 * @klass: The return type
5108 *
5109 * This method generates a wrapper for calling mono_load_remote_field_new.
5110 * The return type is ignored for now, as mono_load_remote_field_new () always
5111 * returns an object. In the future, to optimize some codepaths, we might
5112 * call a different function that takes a pointer to a valuetype, instead.
5113 */
5114 MonoMethod *
5115 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
5116 {
5117 MonoMethodSignature *sig, *csig;
5118 MonoMethodBuilder *mb;
5119 MonoMethod *res;
5120 static MonoMethod* cached = NULL;
5121
5122 mono_marshal_lock ();
5123 if (cached) {
5124 mono_marshal_unlock ();
5125 return cached;
5126 }
5127 mono_marshal_unlock ();
5128
5129 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
5130
5131 mb->method->save_lmf = 1;
5132
5133 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5134 sig->params [0] = &mono_defaults.object_class->byval_arg;
5135 sig->params [1] = &mono_defaults.int_class->byval_arg;
5136 sig->params [2] = &mono_defaults.int_class->byval_arg;
5137 sig->ret = &mono_defaults.object_class->byval_arg;
5138
5139 #ifndef DISABLE_JIT
5140 mono_mb_emit_ldarg (mb, 0);
5141 mono_mb_emit_ldarg (mb, 1);
5142 mono_mb_emit_ldarg (mb, 2);
5143
5144 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5145 csig->params [0] = &mono_defaults.object_class->byval_arg;
5146 csig->params [1] = &mono_defaults.int_class->byval_arg;
5147 csig->params [2] = &mono_defaults.int_class->byval_arg;
5148 csig->ret = &mono_defaults.object_class->byval_arg;
5149 csig->pinvoke = 1;
5150
5151 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5152 emit_thread_interrupt_checkpoint (mb);
5153
5154 mono_mb_emit_byte (mb, CEE_RET);
5155 #endif
5156
5157 mono_marshal_lock ();
5158 res = cached;
5159 mono_marshal_unlock ();
5160 if (!res) {
5161 MonoMethod *newm;
5162 newm = mono_mb_create_method (mb, sig, 4);
5163 mono_marshal_lock ();
5164 res = cached;
5165 if (!res) {
5166 res = newm;
5167 cached = res;
5168 mono_marshal_unlock ();
5169 } else {
5170 mono_marshal_unlock ();
5171 mono_free_method (newm);
5172 }
5173 }
5174 mono_mb_free (mb);
5175
5176 return res;
5177 }
5178
5179 /*
5180 * mono_marshal_get_ldfld_wrapper:
5181 * @type: the type of the field
5182 *
5183 * This method generates a function which can be use to load a field with type
5184 * @type from an object. The generated function has the following signature:
5185 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
5186 */
5187 MonoMethod *
5188 mono_marshal_get_ldfld_wrapper (MonoType *type)
5189 {
5190 MonoMethodSignature *sig;
5191 MonoMethodBuilder *mb;
5192 MonoMethod *res;
5193 MonoClass *klass;
5194 GHashTable *cache;
5195 char *name;
5196 int t, pos0, pos1 = 0;
5197
5198 type = mono_type_get_underlying_type (type);
5199
5200 t = type->type;
5201
5202 if (!type->byref) {
5203 if (type->type == MONO_TYPE_SZARRAY) {
5204 klass = mono_defaults.array_class;
5205 } else if (type->type == MONO_TYPE_VALUETYPE) {
5206 klass = type->data.klass;
5207 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5208 klass = mono_defaults.object_class;
5209 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5210 klass = mono_defaults.int_class;
5211 } else if (t == MONO_TYPE_GENERICINST) {
5212 if (mono_type_generic_inst_is_valuetype (type))
5213 klass = mono_class_from_mono_type (type);
5214 else
5215 klass = mono_defaults.object_class;
5216 } else {
5217 klass = mono_class_from_mono_type (type);
5218 }
5219 } else {
5220 klass = mono_defaults.int_class;
5221 }
5222
5223 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5224 if ((res = mono_marshal_find_in_cache (cache, klass)))
5225 return res;
5226
5227 /* we add the %p pointer value of klass because class names are not unique */
5228 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5229 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
5230 g_free (name);
5231
5232 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5233 sig->params [0] = &mono_defaults.object_class->byval_arg;
5234 sig->params [1] = &mono_defaults.int_class->byval_arg;
5235 sig->params [2] = &mono_defaults.int_class->byval_arg;
5236 sig->params [3] = &mono_defaults.int_class->byval_arg;
5237 sig->ret = &klass->byval_arg;
5238
5239 #ifndef DISABLE_JIT
5240 mono_mb_emit_ldarg (mb, 0);
5241 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5242
5243 mono_mb_emit_ldarg (mb, 0);
5244 mono_mb_emit_ldarg (mb, 1);
5245 mono_mb_emit_ldarg (mb, 2);
5246
5247 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
5248
5249 /*
5250 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
5251 csig->params [0] = &mono_defaults.object_class->byval_arg;
5252 csig->params [1] = &mono_defaults.int_class->byval_arg;
5253 csig->params [2] = &mono_defaults.int_class->byval_arg;
5254 csig->ret = &klass->this_arg;
5255 csig->pinvoke = 1;
5256
5257 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5258 emit_thread_interrupt_checkpoint (mb);
5259 */
5260
5261 if (klass->valuetype) {
5262 mono_mb_emit_op (mb, CEE_UNBOX, klass);
5263 pos1 = mono_mb_emit_branch (mb, CEE_BR);
5264 } else {
5265 mono_mb_emit_byte (mb, CEE_RET);
5266 }
5267
5268
5269 mono_mb_patch_branch (mb, pos0);
5270
5271 mono_mb_emit_ldarg (mb, 0);
5272 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5273 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5274 mono_mb_emit_ldarg (mb, 3);
5275 mono_mb_emit_byte (mb, CEE_ADD);
5276
5277 if (klass->valuetype)
5278 mono_mb_patch_branch (mb, pos1);
5279
5280 switch (t) {
5281 case MONO_TYPE_I1:
5282 case MONO_TYPE_U1:
5283 case MONO_TYPE_BOOLEAN:
5284 case MONO_TYPE_CHAR:
5285 case MONO_TYPE_I2:
5286 case MONO_TYPE_U2:
5287 case MONO_TYPE_I4:
5288 case MONO_TYPE_U4:
5289 case MONO_TYPE_I8:
5290 case MONO_TYPE_U8:
5291 case MONO_TYPE_R4:
5292 case MONO_TYPE_R8:
5293 case MONO_TYPE_ARRAY:
5294 case MONO_TYPE_SZARRAY:
5295 case MONO_TYPE_OBJECT:
5296 case MONO_TYPE_CLASS:
5297 case MONO_TYPE_STRING:
5298 case MONO_TYPE_I:
5299 case MONO_TYPE_U:
5300 case MONO_TYPE_PTR:
5301 case MONO_TYPE_FNPTR:
5302 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
5303 break;
5304 case MONO_TYPE_VALUETYPE:
5305 g_assert (!klass->enumtype);
5306 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5307 break;
5308 case MONO_TYPE_GENERICINST:
5309 if (mono_type_generic_inst_is_valuetype (type)) {
5310 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5311 } else {
5312 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5313 }
5314 break;
5315 default:
5316 g_warning ("type %x not implemented", type->type);
5317 g_assert_not_reached ();
5318 }
5319
5320 mono_mb_emit_byte (mb, CEE_RET);
5321 #endif /* DISABLE_JIT */
5322
5323 res = mono_mb_create_and_cache (cache, klass,
5324 mb, sig, sig->param_count + 16);
5325 mono_mb_free (mb);
5326
5327 return res;
5328 }
5329
5330 /*
5331 * mono_marshal_get_ldflda_wrapper:
5332 * @type: the type of the field
5333 *
5334 * This method generates a function which can be used to load a field address
5335 * from an object. The generated function has the following signature:
5336 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5337 */
5338 MonoMethod *
5339 mono_marshal_get_ldflda_wrapper (MonoType *type)
5340 {
5341 MonoMethodSignature *sig;
5342 MonoMethodBuilder *mb;
5343 MonoMethod *res;
5344 MonoClass *klass;
5345 GHashTable *cache;
5346 char *name;
5347 int t, pos0, pos1, pos2, pos3;
5348
5349 type = mono_type_get_underlying_type (type);
5350 t = type->type;
5351
5352 if (!type->byref) {
5353 if (type->type == MONO_TYPE_SZARRAY) {
5354 klass = mono_defaults.array_class;
5355 } else if (type->type == MONO_TYPE_VALUETYPE) {
5356 klass = type->data.klass;
5357 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5358 t == MONO_TYPE_CLASS) {
5359 klass = mono_defaults.object_class;
5360 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5361 klass = mono_defaults.int_class;
5362 } else if (t == MONO_TYPE_GENERICINST) {
5363 if (mono_type_generic_inst_is_valuetype (type))
5364 klass = mono_class_from_mono_type (type);
5365 else
5366 klass = mono_defaults.object_class;
5367 } else {
5368 klass = mono_class_from_mono_type (type);
5369 }
5370 } else {
5371 klass = mono_defaults.int_class;
5372 }
5373
5374 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
5375 if ((res = mono_marshal_find_in_cache (cache, klass)))
5376 return res;
5377
5378 /* we add the %p pointer value of klass because class names are not unique */
5379 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5380 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5381 g_free (name);
5382
5383 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5384 sig->params [0] = &mono_defaults.object_class->byval_arg;
5385 sig->params [1] = &mono_defaults.int_class->byval_arg;
5386 sig->params [2] = &mono_defaults.int_class->byval_arg;
5387 sig->params [3] = &mono_defaults.int_class->byval_arg;
5388 sig->ret = &mono_defaults.int_class->byval_arg;
5389
5390 #ifndef DISABLE_JIT
5391 /* if typeof (this) != transparent_proxy goto pos0 */
5392 mono_mb_emit_ldarg (mb, 0);
5393 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5394
5395 /* if same_appdomain goto pos1 */
5396 mono_mb_emit_ldarg (mb, 0);
5397 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
5398
5399 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5400
5401 /* same app domain */
5402 mono_mb_patch_branch (mb, pos1);
5403
5404 /* if typeof (this) != contextbound goto pos2 */
5405 mono_mb_emit_ldarg (mb, 0);
5406 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
5407
5408 /* if this->rp->context == mono_context_get goto pos3 */
5409 mono_mb_emit_ldarg (mb, 0);
5410 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5411 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5412 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
5413 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5414 mono_mb_emit_icall (mb, mono_context_get);
5415 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
5416
5417 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
5418
5419 mono_mb_patch_branch (mb, pos2);
5420 mono_mb_patch_branch (mb, pos3);
5421
5422 /* return the address of the field from this->rp->unwrapped_server */
5423 mono_mb_emit_ldarg (mb, 0);
5424 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5425 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5426 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
5427 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5428 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5429 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5430 mono_mb_emit_ldarg (mb, 3);
5431 mono_mb_emit_byte (mb, CEE_ADD);
5432 mono_mb_emit_byte (mb, CEE_RET);
5433
5434 /* not a proxy: return the address of the field directly */
5435 mono_mb_patch_branch (mb, pos0);
5436
5437 mono_mb_emit_ldarg (mb, 0);
5438 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5439 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5440 mono_mb_emit_ldarg (mb, 3);
5441 mono_mb_emit_byte (mb, CEE_ADD);
5442
5443 mono_mb_emit_byte (mb, CEE_RET);
5444 #endif
5445
5446 res = mono_mb_create_and_cache (cache, klass,
5447 mb, sig, sig->param_count + 16);
5448 mono_mb_free (mb);
5449
5450 return res;
5451 }
5452
5453 /*
5454 * mono_marshal_get_stfld_remote_wrapper:
5455 * klass: The type of the field
5456 *
5457 * This function generates a wrapper for calling mono_store_remote_field_new
5458 * with the appropriate signature.
5459 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5460 * klass argument anymore.
5461 */
5462 MonoMethod *
5463 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5464 {
5465 MonoMethodSignature *sig, *csig;
5466 MonoMethodBuilder *mb;
5467 MonoMethod *res;
5468 static MonoMethod *cached = NULL;
5469
5470 mono_marshal_lock ();
5471 if (cached) {
5472 mono_marshal_unlock ();
5473 return cached;
5474 }
5475 mono_marshal_unlock ();
5476
5477 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5478
5479 mb->method->save_lmf = 1;
5480
5481 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5482 sig->params [0] = &mono_defaults.object_class->byval_arg;
5483 sig->params [1] = &mono_defaults.int_class->byval_arg;
5484 sig->params [2] = &mono_defaults.int_class->byval_arg;
5485 sig->params [3] = &mono_defaults.object_class->byval_arg;
5486 sig->ret = &mono_defaults.void_class->byval_arg;
5487
5488 #ifndef DISABLE_JIT
5489 mono_mb_emit_ldarg (mb, 0);
5490 mono_mb_emit_ldarg (mb, 1);
5491 mono_mb_emit_ldarg (mb, 2);
5492 mono_mb_emit_ldarg (mb, 3);
5493
5494 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5495 csig->params [0] = &mono_defaults.object_class->byval_arg;
5496 csig->params [1] = &mono_defaults.int_class->byval_arg;
5497 csig->params [2] = &mono_defaults.int_class->byval_arg;
5498 csig->params [3] = &mono_defaults.object_class->byval_arg;
5499 csig->ret = &mono_defaults.void_class->byval_arg;
5500 csig->pinvoke = 1;
5501
5502 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5503 emit_thread_interrupt_checkpoint (mb);
5504
5505 mono_mb_emit_byte (mb, CEE_RET);
5506 #endif
5507
5508 mono_marshal_lock ();
5509 res = cached;
5510 mono_marshal_unlock ();
5511 if (!res) {
5512 MonoMethod *newm;
5513 newm = mono_mb_create_method (mb, sig, 6);
5514 mono_marshal_lock ();
5515 res = cached;
5516 if (!res) {
5517 res = newm;
5518 cached = res;
5519 mono_marshal_unlock ();
5520 } else {
5521 mono_marshal_unlock ();
5522 mono_free_method (newm);
5523 }
5524 }
5525 mono_mb_free (mb);
5526
5527 return res;
5528 }
5529
5530 /*
5531 * mono_marshal_get_stfld_wrapper:
5532 * @type: the type of the field
5533 *
5534 * This method generates a function which can be use to store a field with type
5535 * @type. The generated function has the following signature:
5536 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5537 */
5538 MonoMethod *
5539 mono_marshal_get_stfld_wrapper (MonoType *type)
5540 {
5541 MonoMethodSignature *sig;
5542 MonoMethodBuilder *mb;
5543 MonoMethod *res;
5544 MonoClass *klass;
5545 GHashTable *cache;
5546 char *name;
5547 int t, pos;
5548
5549 type = mono_type_get_underlying_type (type);
5550 t = type->type;
5551
5552 if (!type->byref) {
5553 if (type->type == MONO_TYPE_SZARRAY) {
5554 klass = mono_defaults.array_class;
5555 } else if (type->type == MONO_TYPE_VALUETYPE) {
5556 klass = type->data.klass;
5557 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5558 klass = mono_defaults.object_class;
5559 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5560 klass = mono_defaults.int_class;
5561 } else if (t == MONO_TYPE_GENERICINST) {
5562 if (mono_type_generic_inst_is_valuetype (type))
5563 klass = mono_class_from_mono_type (type);
5564 else
5565 klass = mono_defaults.object_class;
5566 } else {
5567 klass = mono_class_from_mono_type (type);
5568 }
5569 } else {
5570 klass = mono_defaults.int_class;
5571 }
5572
5573 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5574 if ((res = mono_marshal_find_in_cache (cache, klass)))
5575 return res;
5576
5577 /* we add the %p pointer value of klass because class names are not unique */
5578 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5579 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5580 g_free (name);
5581
5582 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5583 sig->params [0] = &mono_defaults.object_class->byval_arg;
5584 sig->params [1] = &mono_defaults.int_class->byval_arg;
5585 sig->params [2] = &mono_defaults.int_class->byval_arg;
5586 sig->params [3] = &mono_defaults.int_class->byval_arg;
5587 sig->params [4] = &klass->byval_arg;
5588 sig->ret = &mono_defaults.void_class->byval_arg;
5589
5590 #ifndef DISABLE_JIT
5591 mono_mb_emit_ldarg (mb, 0);
5592 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5593
5594 mono_mb_emit_ldarg (mb, 0);
5595 mono_mb_emit_ldarg (mb, 1);
5596 mono_mb_emit_ldarg (mb, 2);
5597 mono_mb_emit_ldarg (mb, 4);
5598 if (klass->valuetype)
5599 mono_mb_emit_op (mb, CEE_BOX, klass);
5600
5601 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5602
5603 mono_mb_emit_byte (mb, CEE_RET);
5604
5605 mono_mb_patch_branch (mb, pos);
5606
5607 mono_mb_emit_ldarg (mb, 0);
5608 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5609 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5610 mono_mb_emit_ldarg (mb, 3);
5611 mono_mb_emit_byte (mb, CEE_ADD);
5612 mono_mb_emit_ldarg (mb, 4);
5613
5614 switch (t) {
5615 case MONO_TYPE_I1:
5616 case MONO_TYPE_U1:
5617 case MONO_TYPE_BOOLEAN:
5618 case MONO_TYPE_CHAR:
5619 case MONO_TYPE_I2:
5620 case MONO_TYPE_U2:
5621 case MONO_TYPE_I4:
5622 case MONO_TYPE_U4:
5623 case MONO_TYPE_I8:
5624 case MONO_TYPE_U8:
5625 case MONO_TYPE_R4:
5626 case MONO_TYPE_R8:
5627 case MONO_TYPE_ARRAY:
5628 case MONO_TYPE_SZARRAY:
5629 case MONO_TYPE_OBJECT:
5630 case MONO_TYPE_CLASS:
5631 case MONO_TYPE_STRING:
5632 case MONO_TYPE_I:
5633 case MONO_TYPE_U:
5634 case MONO_TYPE_PTR:
5635 case MONO_TYPE_FNPTR:
5636 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5637 break;
5638 case MONO_TYPE_VALUETYPE:
5639 g_assert (!klass->enumtype);
5640 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5641 break;
5642 case MONO_TYPE_GENERICINST:
5643 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5644 break;
5645 default:
5646 g_warning ("type %x not implemented", type->type);
5647 g_assert_not_reached ();
5648 }
5649
5650 mono_mb_emit_byte (mb, CEE_RET);
5651 #endif
5652
5653 res = mono_mb_create_and_cache (cache, klass,
5654 mb, sig, sig->param_count + 16);
5655 mono_mb_free (mb);
5656
5657 return res;
5658 }
5659 #endif /* DISABLE_REMOTING */
5660
5661 /*
5662 * generates IL code for the icall wrapper (the generated method
5663 * calls the unmanaged code in func)
5664 * The wrapper info for the wrapper is a WrapperInfo structure.
5665 */
5666 MonoMethod *
5667 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5668 {
5669 MonoMethodSignature *csig, *csig2;
5670 MonoMethodBuilder *mb;
5671 MonoMethod *res;
5672 int i;
5673 WrapperInfo *info;
5674
5675 g_assert (sig->pinvoke);
5676
5677 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5678
5679 mb->method->save_lmf = 1;
5680
5681 /* Add an explicit this argument */
5682 if (sig->hasthis)
5683 csig2 = signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
5684 else
5685 csig2 = signature_dup (mono_defaults.corlib, sig);
5686
5687 #ifndef DISABLE_JIT
5688 if (sig->hasthis)
5689 mono_mb_emit_byte (mb, CEE_LDARG_0);
5690
5691 for (i = 0; i < sig->param_count; i++)
5692 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5693
5694 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5695 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
5696 mono_mb_emit_calli (mb, csig2);
5697 if (check_exceptions)
5698 emit_thread_interrupt_checkpoint (mb);
5699 mono_mb_emit_byte (mb, CEE_RET);
5700 #endif
5701
5702 csig = signature_dup (mono_defaults.corlib, sig);
5703 csig->pinvoke = 0;
5704 if (csig->call_convention == MONO_CALL_VARARG)
5705 csig->call_convention = 0;
5706
5707 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5708 mono_mb_free (mb);
5709
5710 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_ICALL_WRAPPER);
5711 info->d.icall.func = (gpointer)func;
5712 mono_marshal_set_wrapper_info (res, info);
5713
5714 return res;
5715 }
5716
5717 static int
5718 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5719 MonoMarshalSpec *spec,
5720 int conv_arg, MonoType **conv_arg_type,
5721 MarshalAction action)
5722 {
5723 #ifdef DISABLE_JIT
5724 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
5725 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5726 return conv_arg;
5727 #else
5728 MonoType *mtype;
5729 MonoClass *mklass;
5730 static MonoClass *ICustomMarshaler = NULL;
5731 static MonoMethod *cleanup_native, *cleanup_managed;
5732 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5733 MonoMethod *get_instance = NULL;
5734 MonoMethodBuilder *mb = m->mb;
5735 char *exception_msg = NULL;
5736 guint32 loc1;
5737 int pos2;
5738
5739 if (!ICustomMarshaler) {
5740 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5741 if (!ICustomMarshaler) {
5742 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
5743 goto handle_exception;
5744 }
5745
5746 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5747 g_assert (cleanup_native);
5748 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5749 g_assert (cleanup_managed);
5750 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5751 g_assert (marshal_managed_to_native);
5752 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5753 g_assert (marshal_native_to_managed);
5754 }
5755
5756 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5757 g_assert (mtype != NULL);
5758 mklass = mono_class_from_mono_type (mtype);
5759 g_assert (mklass != NULL);
5760
5761 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5762 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5763
5764 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5765 if (get_instance) {
5766 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5767 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5768 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5769 (get_sig->params [0]->type != MONO_TYPE_STRING))
5770 get_instance = NULL;
5771 }
5772
5773 if (!get_instance)
5774 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement a static GetInstance method that takes a single string parameter and returns an ICustomMarshaler.", mklass->name);
5775
5776 handle_exception:
5777 /* Throw exception and emit compensation code if neccesary */
5778 if (exception_msg) {
5779 switch (action) {
5780 case MARSHAL_ACTION_CONV_IN:
5781 case MARSHAL_ACTION_CONV_RESULT:
5782 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5783 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5784 mono_mb_emit_byte (mb, CEE_POP);
5785
5786 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5787 g_free (exception_msg);
5788
5789 break;
5790 case MARSHAL_ACTION_PUSH:
5791 mono_mb_emit_byte (mb, CEE_LDNULL);
5792 break;
5793 default:
5794 break;
5795 }
5796 return 0;
5797 }
5798
5799 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5800 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5801
5802 switch (action) {
5803 case MARSHAL_ACTION_CONV_IN:
5804 switch (t->type) {
5805 case MONO_TYPE_CLASS:
5806 case MONO_TYPE_OBJECT:
5807 case MONO_TYPE_STRING:
5808 case MONO_TYPE_ARRAY:
5809 case MONO_TYPE_SZARRAY:
5810 case MONO_TYPE_VALUETYPE:
5811 break;
5812
5813 default:
5814 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5815 g_assert_not_reached ();
5816 break;
5817 }
5818
5819 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5820
5821 mono_mb_emit_byte (mb, CEE_LDNULL);
5822 mono_mb_emit_stloc (mb, conv_arg);
5823
5824 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5825 break;
5826
5827 /* Minic MS.NET behavior */
5828 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5829 break;
5830
5831 /* Check for null */
5832 mono_mb_emit_ldarg (mb, argnum);
5833 if (t->byref)
5834 mono_mb_emit_byte (mb, CEE_LDIND_I);
5835 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5836
5837 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5838
5839 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5840
5841 mono_mb_emit_ldarg (mb, argnum);
5842 if (t->byref)
5843 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5844
5845 if (t->type == MONO_TYPE_VALUETYPE) {
5846 /*
5847 * Since we can't determine the type of the argument, we
5848 * will assume the unmanaged function takes a pointer.
5849 */
5850 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5851
5852 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5853 }
5854
5855 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5856 mono_mb_emit_stloc (mb, conv_arg);
5857
5858 mono_mb_patch_branch (mb, pos2);
5859 break;
5860
5861 case MARSHAL_ACTION_CONV_OUT:
5862 /* Check for null */
5863 mono_mb_emit_ldloc (mb, conv_arg);
5864 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5865
5866 if (t->byref) {
5867 mono_mb_emit_ldarg (mb, argnum);
5868
5869 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5870
5871 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5872
5873 mono_mb_emit_ldloc (mb, conv_arg);
5874 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5875 mono_mb_emit_byte (mb, CEE_STIND_REF);
5876 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5877 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5878
5879 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5880
5881 mono_mb_emit_ldloc (mb, conv_arg);
5882 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5883
5884 /* We have nowhere to store the result */
5885 mono_mb_emit_byte (mb, CEE_POP);
5886 }
5887
5888 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5889
5890 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5891
5892 mono_mb_emit_ldloc (mb, conv_arg);
5893
5894 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5895
5896 mono_mb_patch_branch (mb, pos2);
5897 break;
5898
5899 case MARSHAL_ACTION_PUSH:
5900 if (t->byref)
5901 mono_mb_emit_ldloc_addr (mb, conv_arg);
5902 else
5903 mono_mb_emit_ldloc (mb, conv_arg);
5904 break;
5905
5906 case MARSHAL_ACTION_CONV_RESULT:
5907 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5908
5909 mono_mb_emit_stloc (mb, 3);
5910
5911 mono_mb_emit_ldloc (mb, 3);
5912 mono_mb_emit_stloc (mb, loc1);
5913
5914 /* Check for null */
5915 mono_mb_emit_ldloc (mb, 3);
5916 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5917
5918 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5919
5920 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5921 mono_mb_emit_byte (mb, CEE_DUP);
5922
5923 mono_mb_emit_ldloc (mb, 3);
5924 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5925 mono_mb_emit_stloc (mb, 3);
5926
5927 mono_mb_emit_ldloc (mb, loc1);
5928 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5929
5930 mono_mb_patch_branch (mb, pos2);
5931 break;
5932
5933 case MARSHAL_ACTION_MANAGED_CONV_IN:
5934 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5935
5936 mono_mb_emit_byte (mb, CEE_LDNULL);
5937 mono_mb_emit_stloc (mb, conv_arg);
5938
5939 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5940 break;
5941
5942 /* Check for null */
5943 mono_mb_emit_ldarg (mb, argnum);
5944 if (t->byref)
5945 mono_mb_emit_byte (mb, CEE_LDIND_I);
5946 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5947
5948 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5949 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5950
5951 mono_mb_emit_ldarg (mb, argnum);
5952 if (t->byref)
5953 mono_mb_emit_byte (mb, CEE_LDIND_I);
5954
5955 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5956 mono_mb_emit_stloc (mb, conv_arg);
5957
5958 mono_mb_patch_branch (mb, pos2);
5959 break;
5960
5961 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5962 g_assert (!t->byref);
5963
5964 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5965
5966 mono_mb_emit_stloc (mb, 3);
5967
5968 mono_mb_emit_ldloc (mb, 3);
5969 mono_mb_emit_stloc (mb, loc1);
5970
5971 /* Check for null */
5972 mono_mb_emit_ldloc (mb, 3);
5973 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5974
5975 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5976 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5977 mono_mb_emit_byte (mb, CEE_DUP);
5978
5979 mono_mb_emit_ldloc (mb, 3);
5980 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5981 mono_mb_emit_stloc (mb, 3);
5982
5983 mono_mb_emit_ldloc (mb, loc1);
5984 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5985
5986 mono_mb_patch_branch (mb, pos2);
5987 break;
5988
5989 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5990
5991 /* Check for null */
5992 mono_mb_emit_ldloc (mb, conv_arg);
5993 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5994
5995 if (t->byref) {
5996 mono_mb_emit_ldarg (mb, argnum);
5997
5998 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5999
6000 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6001
6002 mono_mb_emit_ldloc (mb, conv_arg);
6003 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
6004 mono_mb_emit_byte (mb, CEE_STIND_I);
6005 }
6006
6007 /* Call CleanUpManagedData */
6008 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
6009
6010 mono_mb_emit_op (mb, CEE_CALL, get_instance);
6011
6012 mono_mb_emit_ldloc (mb, conv_arg);
6013 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
6014
6015 mono_mb_patch_branch (mb, pos2);
6016 break;
6017
6018 default:
6019 g_assert_not_reached ();
6020 }
6021 return conv_arg;
6022 #endif
6023
6024 }
6025
6026 static int
6027 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
6028 MonoMarshalSpec *spec,
6029 int conv_arg, MonoType **conv_arg_type,
6030 MarshalAction action)
6031 {
6032 #ifndef DISABLE_JIT
6033 MonoMethodBuilder *mb = m->mb;
6034
6035 switch (action) {
6036 case MARSHAL_ACTION_CONV_IN: {
6037 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
6038
6039 g_assert (t->type == MONO_TYPE_OBJECT);
6040 g_assert (!t->byref);
6041
6042 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6043 mono_mb_emit_ldarg (mb, argnum);
6044 mono_mb_emit_icon (mb, encoding);
6045 mono_mb_emit_icon (mb, t->attrs);
6046 mono_mb_emit_icall (mb, mono_marshal_asany);
6047 mono_mb_emit_stloc (mb, conv_arg);
6048 break;
6049 }
6050
6051 case MARSHAL_ACTION_PUSH:
6052 mono_mb_emit_ldloc (mb, conv_arg);
6053 break;
6054
6055 case MARSHAL_ACTION_CONV_OUT: {
6056 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
6057
6058 mono_mb_emit_ldarg (mb, argnum);
6059 mono_mb_emit_ldloc (mb, conv_arg);
6060 mono_mb_emit_icon (mb, encoding);
6061 mono_mb_emit_icon (mb, t->attrs);
6062 mono_mb_emit_icall (mb, mono_marshal_free_asany);
6063 break;
6064 }
6065
6066 default:
6067 g_assert_not_reached ();
6068 }
6069 #endif
6070 return conv_arg;
6071 }
6072
6073 static int
6074 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
6075 MonoMarshalSpec *spec,
6076 int conv_arg, MonoType **conv_arg_type,
6077 MarshalAction action)
6078 {
6079 #ifndef DISABLE_JIT
6080 MonoMethodBuilder *mb = m->mb;
6081 MonoClass *klass, *date_time_class;
6082 int pos = 0, pos2;
6083
6084 klass = mono_class_from_mono_type (t);
6085
6086 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
6087
6088 switch (action) {
6089 case MARSHAL_ACTION_CONV_IN:
6090 if (klass == date_time_class) {
6091 /* Convert it to an OLE DATE type */
6092 static MonoMethod *to_oadate;
6093
6094 if (!to_oadate)
6095 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
6096 g_assert (to_oadate);
6097
6098 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
6099
6100 if (t->byref) {
6101 mono_mb_emit_ldarg (mb, argnum);
6102 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6103 }
6104
6105 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6106 if (!t->byref)
6107 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
6108
6109 mono_mb_emit_ldarg_addr (mb, argnum);
6110 mono_mb_emit_managed_call (mb, to_oadate, NULL);
6111 mono_mb_emit_stloc (mb, conv_arg);
6112 }
6113
6114 if (t->byref)
6115 mono_mb_patch_branch (mb, pos);
6116 break;
6117 }
6118
6119 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6120 klass->blittable || klass->enumtype)
6121 break;
6122
6123 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6124
6125 /* store the address of the source into local variable 0 */
6126 if (t->byref)
6127 mono_mb_emit_ldarg (mb, argnum);
6128 else
6129 mono_mb_emit_ldarg_addr (mb, argnum);
6130
6131 mono_mb_emit_stloc (mb, 0);
6132
6133 /* allocate space for the native struct and
6134 * store the address into local variable 1 (dest) */
6135 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6136 mono_mb_emit_byte (mb, CEE_PREFIX1);
6137 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6138 mono_mb_emit_stloc (mb, conv_arg);
6139
6140 if (t->byref) {
6141 mono_mb_emit_ldloc (mb, 0);
6142 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6143 }
6144
6145 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6146 /* set dst_ptr */
6147 mono_mb_emit_ldloc (mb, conv_arg);
6148 mono_mb_emit_stloc (mb, 1);
6149
6150 /* emit valuetype conversion code */
6151 emit_struct_conv (mb, klass, FALSE);
6152 }
6153
6154 if (t->byref)
6155 mono_mb_patch_branch (mb, pos);
6156 break;
6157
6158 case MARSHAL_ACTION_PUSH:
6159 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
6160 /* FIXME: */
6161 g_assert (!t->byref);
6162
6163 /* Have to change the signature since the vtype is passed byref */
6164 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
6165
6166 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6167 klass->blittable || klass->enumtype)
6168 mono_mb_emit_ldarg_addr (mb, argnum);
6169 else
6170 mono_mb_emit_ldloc (mb, conv_arg);
6171 break;
6172 }
6173
6174 if (klass == date_time_class) {
6175 if (t->byref)
6176 mono_mb_emit_ldloc_addr (mb, conv_arg);
6177 else
6178 mono_mb_emit_ldloc (mb, conv_arg);
6179 break;
6180 }
6181
6182 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6183 klass->blittable || klass->enumtype) {
6184 mono_mb_emit_ldarg (mb, argnum);
6185 break;
6186 }
6187 mono_mb_emit_ldloc (mb, conv_arg);
6188 if (!t->byref) {
6189 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6190 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
6191 }
6192 break;
6193
6194 case MARSHAL_ACTION_CONV_OUT:
6195 if (klass == date_time_class) {
6196 /* Convert from an OLE DATE type */
6197 static MonoMethod *from_oadate;
6198
6199 if (!t->byref)
6200 break;
6201
6202 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
6203 if (!from_oadate)
6204 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
6205 g_assert (from_oadate);
6206
6207 mono_mb_emit_ldarg (mb, argnum);
6208 mono_mb_emit_ldloc (mb, conv_arg);
6209 mono_mb_emit_managed_call (mb, from_oadate, NULL);
6210 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
6211 }
6212 break;
6213 }
6214
6215 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6216 klass->blittable || klass->enumtype)
6217 break;
6218
6219 if (t->byref) {
6220 /* dst = argument */
6221 mono_mb_emit_ldarg (mb, argnum);
6222 mono_mb_emit_stloc (mb, 1);
6223
6224 mono_mb_emit_ldloc (mb, 1);
6225 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6226
6227 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
6228 /* src = tmp_locals [i] */
6229 mono_mb_emit_ldloc (mb, conv_arg);
6230 mono_mb_emit_stloc (mb, 0);
6231
6232 /* emit valuetype conversion code */
6233 emit_struct_conv (mb, klass, TRUE);
6234 }
6235 }
6236
6237 emit_struct_free (mb, klass, conv_arg);
6238
6239 if (t->byref)
6240 mono_mb_patch_branch (mb, pos);
6241 break;
6242
6243 case MARSHAL_ACTION_CONV_RESULT:
6244 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6245 klass->blittable) {
6246 mono_mb_emit_stloc (mb, 3);
6247 break;
6248 }
6249
6250 /* load pointer to returned value type */
6251 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6252 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6253 /* store the address of the source into local variable 0 */
6254 mono_mb_emit_stloc (mb, 0);
6255 /* set dst_ptr */
6256 mono_mb_emit_ldloc_addr (mb, 3);
6257 mono_mb_emit_stloc (mb, 1);
6258
6259 /* emit valuetype conversion code */
6260 emit_struct_conv (mb, klass, TRUE);
6261 break;
6262
6263 case MARSHAL_ACTION_MANAGED_CONV_IN:
6264 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6265 klass->blittable || klass->enumtype) {
6266 conv_arg = 0;
6267 break;
6268 }
6269
6270 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6271
6272 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6273 break;
6274
6275 if (t->byref)
6276 mono_mb_emit_ldarg (mb, argnum);
6277 else
6278 mono_mb_emit_ldarg_addr (mb, argnum);
6279 mono_mb_emit_stloc (mb, 0);
6280
6281 if (t->byref) {
6282 mono_mb_emit_ldloc (mb, 0);
6283 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6284 }
6285
6286 mono_mb_emit_ldloc_addr (mb, conv_arg);
6287 mono_mb_emit_stloc (mb, 1);
6288
6289 /* emit valuetype conversion code */
6290 emit_struct_conv (mb, klass, TRUE);
6291
6292 if (t->byref)
6293 mono_mb_patch_branch (mb, pos);
6294 break;
6295
6296 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6297 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6298 klass->blittable || klass->enumtype) {
6299 break;
6300 }
6301
6302 /* Check for null */
6303 mono_mb_emit_ldarg (mb, argnum);
6304 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6305
6306 /* Set src */
6307 mono_mb_emit_ldloc_addr (mb, conv_arg);
6308 mono_mb_emit_stloc (mb, 0);
6309
6310 /* Set dest */
6311 mono_mb_emit_ldarg (mb, argnum);
6312 mono_mb_emit_stloc (mb, 1);
6313
6314 /* emit valuetype conversion code */
6315 emit_struct_conv (mb, klass, FALSE);
6316
6317 mono_mb_patch_branch (mb, pos2);
6318 break;
6319
6320 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6321 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6322 klass->blittable || klass->enumtype) {
6323 mono_mb_emit_stloc (mb, 3);
6324 m->retobj_var = 0;
6325 break;
6326 }
6327
6328 /* load pointer to returned value type */
6329 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6330 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6331
6332 /* store the address of the source into local variable 0 */
6333 mono_mb_emit_stloc (mb, 0);
6334 /* allocate space for the native struct and
6335 * store the address into dst_ptr */
6336 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6337 m->retobj_class = klass;
6338 g_assert (m->retobj_var);
6339 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6340 mono_mb_emit_byte (mb, CEE_CONV_I);
6341 mono_mb_emit_icall (mb, mono_marshal_alloc);
6342 mono_mb_emit_stloc (mb, 1);
6343 mono_mb_emit_ldloc (mb, 1);
6344 mono_mb_emit_stloc (mb, m->retobj_var);
6345
6346 /* emit valuetype conversion code */
6347 emit_struct_conv (mb, klass, FALSE);
6348 break;
6349
6350 default:
6351 g_assert_not_reached ();
6352 }
6353 #endif
6354 return conv_arg;
6355 }
6356
6357 static int
6358 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
6359 MonoMarshalSpec *spec,
6360 int conv_arg, MonoType **conv_arg_type,
6361 MarshalAction action)
6362 {
6363 #ifdef DISABLE_JIT
6364 switch (action) {
6365 case MARSHAL_ACTION_CONV_IN:
6366 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6367 break;
6368 case MARSHAL_ACTION_MANAGED_CONV_IN:
6369 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6370 break;
6371 }
6372 #else
6373 MonoMethodBuilder *mb = m->mb;
6374 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6375 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6376 gboolean need_free;
6377
6378 switch (action) {
6379 case MARSHAL_ACTION_CONV_IN:
6380 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6381 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6382
6383 if (t->byref) {
6384 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6385 break;
6386
6387 mono_mb_emit_ldarg (mb, argnum);
6388 mono_mb_emit_byte (mb, CEE_LDIND_I);
6389 } else {
6390 mono_mb_emit_ldarg (mb, argnum);
6391 }
6392
6393 if (conv == -1) {
6394 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6395 mono_mb_emit_exception_marshal_directive (mb, msg);
6396 } else {
6397 mono_mb_emit_icall (mb, conv_to_icall (conv));
6398
6399 mono_mb_emit_stloc (mb, conv_arg);
6400 }
6401 break;
6402
6403 case MARSHAL_ACTION_CONV_OUT:
6404 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6405 if (conv == -1) {
6406 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6407 mono_mb_emit_exception_marshal_directive (mb, msg);
6408 break;
6409 }
6410
6411 if (encoding == MONO_NATIVE_VBBYREFSTR) {
6412 static MonoMethod *m;
6413
6414 if (!m) {
6415 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
6416 g_assert (m);
6417 }
6418
6419 if (!t->byref) {
6420 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
6421 mono_mb_emit_exception_marshal_directive (mb, msg);
6422 break;
6423 }
6424
6425 /*
6426 * Have to allocate a new string with the same length as the original, and
6427 * copy the contents of the buffer pointed to by CONV_ARG into it.
6428 */
6429 g_assert (t->byref);
6430 mono_mb_emit_ldarg (mb, argnum);
6431 mono_mb_emit_ldloc (mb, conv_arg);
6432 mono_mb_emit_ldarg (mb, argnum);
6433 mono_mb_emit_byte (mb, CEE_LDIND_I);
6434 mono_mb_emit_managed_call (mb, m, NULL);
6435 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
6436 mono_mb_emit_byte (mb, CEE_STIND_REF);
6437 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6438 mono_mb_emit_ldarg (mb, argnum);
6439 mono_mb_emit_ldloc (mb, conv_arg);
6440 mono_mb_emit_icall (mb, conv_to_icall (conv));
6441 mono_mb_emit_byte (mb, CEE_STIND_REF);
6442 need_free = TRUE;
6443 }
6444
6445 if (need_free) {
6446 mono_mb_emit_ldloc (mb, conv_arg);
6447 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6448 mono_mb_emit_icall (mb, mono_free_bstr);
6449 else
6450 mono_mb_emit_icall (mb, mono_marshal_free);
6451 }
6452 break;
6453
6454 case MARSHAL_ACTION_PUSH:
6455 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
6456 mono_mb_emit_ldloc_addr (mb, conv_arg);
6457 else
6458 mono_mb_emit_ldloc (mb, conv_arg);
6459 break;
6460
6461 case MARSHAL_ACTION_CONV_RESULT:
6462 mono_mb_emit_stloc (mb, 0);
6463
6464 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6465 if (conv == -1) {
6466 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6467 mono_mb_emit_exception_marshal_directive (mb, msg);
6468 break;
6469 }
6470
6471 mono_mb_emit_ldloc (mb, 0);
6472 mono_mb_emit_icall (mb, conv_to_icall (conv));
6473 mono_mb_emit_stloc (mb, 3);
6474
6475 /* free the string */
6476 mono_mb_emit_ldloc (mb, 0);
6477 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6478 mono_mb_emit_icall (mb, mono_free_bstr);
6479 else
6480 mono_mb_emit_icall (mb, mono_marshal_free);
6481 break;
6482
6483 case MARSHAL_ACTION_MANAGED_CONV_IN:
6484 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6485
6486 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6487
6488 if (t->byref) {
6489 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6490 break;
6491 }
6492
6493 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6494 if (conv == -1) {
6495 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6496 mono_mb_emit_exception_marshal_directive (mb, msg);
6497 break;
6498 }
6499
6500 mono_mb_emit_ldarg (mb, argnum);
6501 if (t->byref)
6502 mono_mb_emit_byte (mb, CEE_LDIND_I);
6503 mono_mb_emit_icall (mb, conv_to_icall (conv));
6504 mono_mb_emit_stloc (mb, conv_arg);
6505 break;
6506
6507 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6508 if (t->byref) {
6509 if (conv_arg) {
6510 mono_mb_emit_ldarg (mb, argnum);
6511 mono_mb_emit_ldloc (mb, conv_arg);
6512 mono_mb_emit_icall (mb, conv_to_icall (conv));
6513 mono_mb_emit_byte (mb, CEE_STIND_I);
6514 }
6515 }
6516 break;
6517
6518 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6519 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6520 /* We need to make a copy so the caller is able to free it */
6521 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6522 else
6523 mono_mb_emit_icall (mb, conv_to_icall (conv));
6524 mono_mb_emit_stloc (mb, 3);
6525 break;
6526
6527 default:
6528 g_assert_not_reached ();
6529 }
6530 #endif
6531 return conv_arg;
6532 }
6533
6534
6535 static int
6536 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6537 MonoMarshalSpec *spec, int conv_arg,
6538 MonoType **conv_arg_type, MarshalAction action)
6539 {
6540 #ifdef DISABLE_JIT
6541 if (action == MARSHAL_ACTION_CONV_IN)
6542 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6543 #else
6544 MonoMethodBuilder *mb = m->mb;
6545
6546 switch (action){
6547 case MARSHAL_ACTION_CONV_IN: {
6548 MonoType *intptr_type;
6549 int dar_release_slot, pos;
6550
6551 intptr_type = &mono_defaults.int_class->byval_arg;
6552 conv_arg = mono_mb_add_local (mb, intptr_type);
6553 *conv_arg_type = intptr_type;
6554
6555 if (!sh_dangerous_add_ref)
6556 init_safe_handle ();
6557
6558 mono_mb_emit_ldarg (mb, argnum);
6559 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6560 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6561
6562 mono_mb_patch_branch (mb, pos);
6563 if (t->byref){
6564 /*
6565 * My tests in show that ref SafeHandles are not really
6566 * passed as ref objects. Instead a NULL is passed as the
6567 * value of the ref
6568 */
6569 mono_mb_emit_icon (mb, 0);
6570 mono_mb_emit_stloc (mb, conv_arg);
6571 break;
6572 }
6573
6574 /* Create local to hold the ref parameter to DangerousAddRef */
6575 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6576
6577 /* set release = false; */
6578 mono_mb_emit_icon (mb, 0);
6579 mono_mb_emit_stloc (mb, dar_release_slot);
6580
6581 /* safehandle.DangerousAddRef (ref release) */
6582 mono_mb_emit_ldarg (mb, argnum);
6583 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6584 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6585
6586 /* Pull the handle field from SafeHandle */
6587 mono_mb_emit_ldarg (mb, argnum);
6588 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6589 mono_mb_emit_byte (mb, CEE_LDIND_I);
6590 mono_mb_emit_stloc (mb, conv_arg);
6591
6592 break;
6593 }
6594
6595 case MARSHAL_ACTION_PUSH:
6596 if (t->byref)
6597 mono_mb_emit_ldloc_addr (mb, conv_arg);
6598 else
6599 mono_mb_emit_ldloc (mb, conv_arg);
6600 break;
6601
6602 case MARSHAL_ACTION_CONV_OUT: {
6603 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6604 int dar_release_slot = conv_arg + 1;
6605 int label_next;
6606
6607 if (!sh_dangerous_release)
6608 init_safe_handle ();
6609
6610 if (t->byref){
6611 MonoMethod *ctor;
6612
6613 /*
6614 * My tests indicate that ref SafeHandles parameters are not actually
6615 * passed by ref, but instead a new Handle is created regardless of
6616 * whether a change happens in the unmanaged side.
6617 *
6618 * Also, the Handle is created before calling into unmanaged code,
6619 * but we do not support that mechanism (getting to the original
6620 * handle) and it makes no difference where we create this
6621 */
6622 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6623 if (ctor == NULL){
6624 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6625 break;
6626 }
6627 /* refval = new SafeHandleDerived ()*/
6628 mono_mb_emit_ldarg (mb, argnum);
6629 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6630 mono_mb_emit_byte (mb, CEE_STIND_REF);
6631
6632 /* refval.handle = returned_handle */
6633 mono_mb_emit_ldarg (mb, argnum);
6634 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6635 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6636 mono_mb_emit_ldloc (mb, conv_arg);
6637 mono_mb_emit_byte (mb, CEE_STIND_I);
6638 } else {
6639 mono_mb_emit_ldloc (mb, dar_release_slot);
6640 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6641 mono_mb_emit_ldarg (mb, argnum);
6642 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6643 mono_mb_patch_branch (mb, label_next);
6644 }
6645 break;
6646 }
6647
6648 case MARSHAL_ACTION_CONV_RESULT: {
6649 MonoMethod *ctor = NULL;
6650 int intptr_handle_slot;
6651
6652 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6653 mono_mb_emit_byte (mb, CEE_POP);
6654 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
6655 break;
6656 }
6657
6658 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6659 if (ctor == NULL){
6660 mono_mb_emit_byte (mb, CEE_POP);
6661 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6662 break;
6663 }
6664 /* Store the IntPtr results into a local */
6665 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6666 mono_mb_emit_stloc (mb, intptr_handle_slot);
6667
6668 /* Create return value */
6669 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6670 mono_mb_emit_stloc (mb, 3);
6671
6672 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6673 mono_mb_emit_ldloc (mb, 3);
6674 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6675 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6676 mono_mb_emit_byte (mb, CEE_STIND_I);
6677 break;
6678 }
6679
6680 case MARSHAL_ACTION_MANAGED_CONV_IN:
6681 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6682 break;
6683
6684 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6685 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6686 break;
6687
6688 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6689 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6690 break;
6691 default:
6692 printf ("Unhandled case for MarshalAction: %d\n", action);
6693 }
6694 #endif
6695 return conv_arg;
6696 }
6697
6698
6699 static int
6700 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6701 MonoMarshalSpec *spec, int conv_arg,
6702 MonoType **conv_arg_type, MarshalAction action)
6703 {
6704 #ifdef DISABLE_JIT
6705 if (action == MARSHAL_ACTION_CONV_IN)
6706 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6707 #else
6708 MonoMethodBuilder *mb = m->mb;
6709
6710 switch (action){
6711 case MARSHAL_ACTION_CONV_IN: {
6712 MonoType *intptr_type;
6713
6714 intptr_type = &mono_defaults.int_class->byval_arg;
6715 conv_arg = mono_mb_add_local (mb, intptr_type);
6716 *conv_arg_type = intptr_type;
6717
6718 if (t->byref){
6719 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
6720 mono_mb_emit_exception_marshal_directive (mb, msg);
6721 break;
6722 }
6723 mono_mb_emit_ldarg_addr (mb, argnum);
6724 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6725 mono_mb_emit_byte (mb, CEE_ADD);
6726 mono_mb_emit_byte (mb, CEE_LDIND_I);
6727 mono_mb_emit_stloc (mb, conv_arg);
6728 break;
6729 }
6730
6731 case MARSHAL_ACTION_PUSH:
6732 mono_mb_emit_ldloc (mb, conv_arg);
6733 break;
6734
6735 case MARSHAL_ACTION_CONV_OUT: {
6736 /* no resource release required */
6737 break;
6738 }
6739
6740 case MARSHAL_ACTION_CONV_RESULT: {
6741 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
6742 mono_mb_emit_exception_marshal_directive (mb, msg);
6743 break;
6744 }
6745
6746 case MARSHAL_ACTION_MANAGED_CONV_IN:
6747 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6748 break;
6749
6750 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6751 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6752 break;
6753
6754 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6755 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6756 break;
6757 default:
6758 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6759 }
6760 #endif
6761 return conv_arg;
6762 }
6763
6764
6765 static int
6766 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6767 MonoMarshalSpec *spec,
6768 int conv_arg, MonoType **conv_arg_type,
6769 MarshalAction action)
6770 {
6771 #ifdef DISABLE_JIT
6772 if (action == MARSHAL_ACTION_CONV_IN)
6773 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6774 #else
6775 MonoMethodBuilder *mb = m->mb;
6776 MonoClass *klass = mono_class_from_mono_type (t);
6777 int pos, pos2, loc;
6778
6779 switch (action) {
6780 case MARSHAL_ACTION_CONV_IN:
6781 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6782 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6783
6784 m->orig_conv_args [argnum] = 0;
6785
6786 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6787 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
6788 mono_mb_emit_exception_marshal_directive (mb, msg);
6789 break;
6790 }
6791
6792 if (klass->delegate) {
6793 if (t->byref) {
6794 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6795 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6796 mono_mb_emit_exception_marshal_directive (mb, msg);
6797 }
6798 mono_mb_emit_byte (mb, CEE_LDNULL);
6799 mono_mb_emit_stloc (mb, conv_arg);
6800 } else {
6801 mono_mb_emit_ldarg (mb, argnum);
6802 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6803 mono_mb_emit_stloc (mb, conv_arg);
6804 }
6805 } else if (klass == mono_defaults.stringbuilder_class) {
6806 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6807 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6808
6809 #if 0
6810 if (t->byref) {
6811 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6812 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
6813 mono_mb_emit_exception_marshal_directive (mb, msg);
6814 }
6815 break;
6816 }
6817 #endif
6818
6819 if (t->byref && !t->attrs & PARAM_ATTRIBUTE_IN && t->attrs & PARAM_ATTRIBUTE_OUT)
6820 break;
6821
6822 if (conv == -1) {
6823 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6824 mono_mb_emit_exception_marshal_directive (mb, msg);
6825 break;
6826 }
6827
6828 mono_mb_emit_ldarg (mb, argnum);
6829 if (t->byref)
6830 mono_mb_emit_byte (mb, CEE_LDIND_I);
6831
6832 mono_mb_emit_icall (mb, conv_to_icall (conv));
6833 mono_mb_emit_stloc (mb, conv_arg);
6834 } else if (klass->blittable) {
6835 mono_mb_emit_byte (mb, CEE_LDNULL);
6836 mono_mb_emit_stloc (mb, conv_arg);
6837
6838 mono_mb_emit_ldarg (mb, argnum);
6839 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6840
6841 mono_mb_emit_ldarg (mb, argnum);
6842 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6843 mono_mb_emit_stloc (mb, conv_arg);
6844
6845 mono_mb_patch_branch (mb, pos);
6846 break;
6847 } else {
6848 mono_mb_emit_byte (mb, CEE_LDNULL);
6849 mono_mb_emit_stloc (mb, conv_arg);
6850
6851 if (t->byref) {
6852 /* we dont need any conversions for out parameters */
6853 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6854 break;
6855
6856 mono_mb_emit_ldarg (mb, argnum);
6857 mono_mb_emit_byte (mb, CEE_LDIND_I);
6858
6859 } else {
6860 mono_mb_emit_ldarg (mb, argnum);
6861 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6862 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6863 }
6864
6865 /* store the address of the source into local variable 0 */
6866 mono_mb_emit_stloc (mb, 0);
6867 mono_mb_emit_ldloc (mb, 0);
6868 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6869
6870 /* allocate space for the native struct and store the address */
6871 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6872 mono_mb_emit_byte (mb, CEE_PREFIX1);
6873 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6874 mono_mb_emit_stloc (mb, conv_arg);
6875
6876 if (t->byref) {
6877 /* Need to store the original buffer so we can free it later */
6878 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6879 mono_mb_emit_ldloc (mb, conv_arg);
6880 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6881 }
6882
6883 /* set the src_ptr */
6884 mono_mb_emit_ldloc (mb, 0);
6885 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6886 mono_mb_emit_stloc (mb, 0);
6887
6888 /* set dst_ptr */
6889 mono_mb_emit_ldloc (mb, conv_arg);
6890 mono_mb_emit_stloc (mb, 1);
6891
6892 /* emit valuetype conversion code */
6893 emit_struct_conv (mb, klass, FALSE);
6894
6895 mono_mb_patch_branch (mb, pos);
6896 }
6897 break;
6898
6899 case MARSHAL_ACTION_CONV_OUT:
6900 if (klass == mono_defaults.stringbuilder_class) {
6901 gboolean need_free;
6902 MonoMarshalNative encoding;
6903 MonoMarshalConv conv;
6904
6905 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6906 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6907
6908 g_assert (encoding != -1);
6909
6910 if (t->byref) {
6911 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
6912
6913 need_free = TRUE;
6914
6915 mono_mb_emit_ldarg (mb, argnum);
6916 mono_mb_emit_ldloc (mb, conv_arg);
6917
6918 switch (encoding) {
6919 case MONO_NATIVE_LPWSTR:
6920 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
6921 break;
6922 case MONO_NATIVE_LPSTR:
6923 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6924 break;
6925 default:
6926 g_assert_not_reached ();
6927 }
6928
6929 mono_mb_emit_byte (mb, CEE_STIND_REF);
6930 } else {
6931 mono_mb_emit_ldarg (mb, argnum);
6932 mono_mb_emit_ldloc (mb, conv_arg);
6933
6934 mono_mb_emit_icall (mb, conv_to_icall (conv));
6935 }
6936
6937 if (need_free) {
6938 mono_mb_emit_ldloc (mb, conv_arg);
6939 mono_mb_emit_icall (mb, mono_marshal_free);
6940 }
6941 break;
6942 }
6943
6944 if (klass->delegate) {
6945 if (t->byref) {
6946 mono_mb_emit_ldarg (mb, argnum);
6947 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6948 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6949 mono_mb_emit_ldloc (mb, conv_arg);
6950 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6951 mono_mb_emit_byte (mb, CEE_STIND_REF);
6952 }
6953 break;
6954 }
6955
6956 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6957 /* allocate a new object */
6958 mono_mb_emit_ldarg (mb, argnum);
6959 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6960 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6961 mono_mb_emit_byte (mb, CEE_STIND_REF);
6962 }
6963
6964 /* dst = *argument */
6965 mono_mb_emit_ldarg (mb, argnum);
6966
6967 if (t->byref)
6968 mono_mb_emit_byte (mb, CEE_LDIND_I);
6969
6970 mono_mb_emit_stloc (mb, 1);
6971
6972 mono_mb_emit_ldloc (mb, 1);
6973 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6974
6975 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6976 mono_mb_emit_ldloc (mb, 1);
6977 mono_mb_emit_icon (mb, sizeof (MonoObject));
6978 mono_mb_emit_byte (mb, CEE_ADD);
6979 mono_mb_emit_stloc (mb, 1);
6980
6981 /* src = tmp_locals [i] */
6982 mono_mb_emit_ldloc (mb, conv_arg);
6983 mono_mb_emit_stloc (mb, 0);
6984
6985 /* emit valuetype conversion code */
6986 emit_struct_conv (mb, klass, TRUE);
6987
6988 /* Free the structure returned by the native code */
6989 emit_struct_free (mb, klass, conv_arg);
6990
6991 if (m->orig_conv_args [argnum]) {
6992 /*
6993 * If the native function changed the pointer, then free
6994 * the original structure plus the new pointer.
6995 */
6996 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6997 mono_mb_emit_ldloc (mb, conv_arg);
6998 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6999
7000 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
7001 g_assert (m->orig_conv_args [argnum]);
7002
7003 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
7004 }
7005
7006 mono_mb_emit_ldloc (mb, conv_arg);
7007 mono_mb_emit_icall (mb, mono_marshal_free);
7008
7009 mono_mb_patch_branch (mb, pos2);
7010 }
7011 }
7012 else
7013 /* Free the original structure passed to native code */
7014 emit_struct_free (mb, klass, conv_arg);
7015
7016 mono_mb_patch_branch (mb, pos);
7017 break;
7018
7019 case MARSHAL_ACTION_PUSH:
7020 if (t->byref)
7021 mono_mb_emit_ldloc_addr (mb, conv_arg);
7022 else
7023 mono_mb_emit_ldloc (mb, conv_arg);
7024 break;
7025
7026 case MARSHAL_ACTION_CONV_RESULT:
7027 if (klass->delegate) {
7028 g_assert (!t->byref);
7029 mono_mb_emit_stloc (mb, 0);
7030 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7031 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
7032 mono_mb_emit_ldloc (mb, 0);
7033 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
7034 mono_mb_emit_stloc (mb, 3);
7035 } else {
7036 /* set src */
7037 mono_mb_emit_stloc (mb, 0);
7038
7039 /* Make a copy since emit_conv modifies local 0 */
7040 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7041 mono_mb_emit_ldloc (mb, 0);
7042 mono_mb_emit_stloc (mb, loc);
7043
7044 mono_mb_emit_byte (mb, CEE_LDNULL);
7045 mono_mb_emit_stloc (mb, 3);
7046
7047 mono_mb_emit_ldloc (mb, 0);
7048 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7049
7050 /* allocate result object */
7051
7052 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7053 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
7054 mono_mb_emit_stloc (mb, 3);
7055
7056 /* set dst */
7057
7058 mono_mb_emit_ldloc (mb, 3);
7059 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7060 mono_mb_emit_stloc (mb, 1);
7061
7062 /* emit conversion code */
7063 emit_struct_conv (mb, klass, TRUE);
7064
7065 emit_struct_free (mb, klass, loc);
7066
7067 /* Free the pointer allocated by unmanaged code */
7068 mono_mb_emit_ldloc (mb, loc);
7069 mono_mb_emit_icall (mb, mono_marshal_free);
7070 mono_mb_patch_branch (mb, pos);
7071 }
7072 break;
7073
7074 case MARSHAL_ACTION_MANAGED_CONV_IN:
7075 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
7076
7077 if (klass->delegate) {
7078 g_assert (!t->byref);
7079 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7080 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
7081 mono_mb_emit_ldarg (mb, argnum);
7082 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
7083 mono_mb_emit_stloc (mb, conv_arg);
7084 break;
7085 }
7086
7087 if (klass == mono_defaults.stringbuilder_class) {
7088 MonoMarshalNative encoding;
7089
7090 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7091
7092 // FIXME:
7093 g_assert (encoding == MONO_NATIVE_LPSTR);
7094
7095 g_assert (!t->byref);
7096 g_assert (encoding != -1);
7097
7098 mono_mb_emit_ldarg (mb, argnum);
7099 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
7100 mono_mb_emit_stloc (mb, conv_arg);
7101 break;
7102 }
7103
7104 /* The class can not have an automatic layout */
7105 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
7106 mono_mb_emit_auto_layout_exception (mb, klass);
7107 break;
7108 }
7109
7110 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
7111 mono_mb_emit_byte (mb, CEE_LDNULL);
7112 mono_mb_emit_stloc (mb, conv_arg);
7113 break;
7114 }
7115
7116 /* Set src */
7117 mono_mb_emit_ldarg (mb, argnum);
7118 if (t->byref) {
7119 int pos2;
7120
7121 /* Check for NULL and raise an exception */
7122 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
7123
7124 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
7125
7126 mono_mb_patch_branch (mb, pos2);
7127 mono_mb_emit_ldarg (mb, argnum);
7128 mono_mb_emit_byte (mb, CEE_LDIND_I);
7129 }
7130
7131 mono_mb_emit_stloc (mb, 0);
7132
7133 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7134 mono_mb_emit_stloc (mb, conv_arg);
7135
7136 mono_mb_emit_ldloc (mb, 0);
7137 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7138
7139 /* Create and set dst */
7140 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7141 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
7142 mono_mb_emit_stloc (mb, conv_arg);
7143 mono_mb_emit_ldloc (mb, conv_arg);
7144 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7145 mono_mb_emit_stloc (mb, 1);
7146
7147 /* emit valuetype conversion code */
7148 emit_struct_conv (mb, klass, TRUE);
7149
7150 mono_mb_patch_branch (mb, pos);
7151 break;
7152
7153 case MARSHAL_ACTION_MANAGED_CONV_OUT:
7154 if (t->byref) {
7155 /* Check for null */
7156 mono_mb_emit_ldloc (mb, conv_arg);
7157 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7158 mono_mb_emit_ldarg (mb, argnum);
7159 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7160 mono_mb_emit_byte (mb, CEE_STIND_REF);
7161 pos2 = mono_mb_emit_branch (mb, CEE_BR);
7162
7163 mono_mb_patch_branch (mb, pos);
7164
7165 /* Set src */
7166 mono_mb_emit_ldloc (mb, conv_arg);
7167 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7168 mono_mb_emit_stloc (mb, 0);
7169
7170 /* Allocate and set dest */
7171 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
7172 mono_mb_emit_byte (mb, CEE_CONV_I);
7173 mono_mb_emit_icall (mb, mono_marshal_alloc);
7174 mono_mb_emit_stloc (mb, 1);
7175
7176 /* Update argument pointer */
7177 mono_mb_emit_ldarg (mb, argnum);
7178 mono_mb_emit_ldloc (mb, 1);
7179 mono_mb_emit_byte (mb, CEE_STIND_I);
7180
7181 /* emit valuetype conversion code */
7182 emit_struct_conv (mb, klass, FALSE);
7183
7184 mono_mb_patch_branch (mb, pos2);
7185 } else {
7186 /* byval [Out] marshalling */
7187
7188 /* FIXME: Handle null */
7189
7190 /* Set src */
7191 mono_mb_emit_ldloc (mb, conv_arg);
7192 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7193 mono_mb_emit_stloc (mb, 0);
7194
7195 /* Set dest */
7196 mono_mb_emit_ldarg (mb, argnum);
7197 mono_mb_emit_stloc (mb, 1);
7198
7199 /* emit valuetype conversion code */
7200 emit_struct_conv (mb, klass, FALSE);
7201 }
7202 break;
7203
7204 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
7205 if (klass->delegate) {
7206 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
7207 mono_mb_emit_stloc (mb, 3);
7208 break;
7209 }
7210
7211 /* The class can not have an automatic layout */
7212 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
7213 mono_mb_emit_auto_layout_exception (mb, klass);
7214 break;
7215 }
7216
7217 mono_mb_emit_stloc (mb, 0);
7218 /* Check for null */
7219 mono_mb_emit_ldloc (mb, 0);
7220 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7221 mono_mb_emit_byte (mb, CEE_LDNULL);
7222 mono_mb_emit_stloc (mb, 3);
7223 pos2 = mono_mb_emit_branch (mb, CEE_BR);
7224
7225 mono_mb_patch_branch (mb, pos);
7226
7227 /* Set src */
7228 mono_mb_emit_ldloc (mb, 0);
7229 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
7230 mono_mb_emit_stloc (mb, 0);
7231
7232 /* Allocate and set dest */
7233 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
7234 mono_mb_emit_byte (mb, CEE_CONV_I);
7235 mono_mb_emit_icall (mb, mono_marshal_alloc);
7236 mono_mb_emit_byte (mb, CEE_DUP);
7237 mono_mb_emit_stloc (mb, 1);
7238 mono_mb_emit_stloc (mb, 3);
7239
7240 emit_struct_conv (mb, klass, FALSE);
7241
7242 mono_mb_patch_branch (mb, pos2);
7243 break;
7244
7245 default:
7246 g_assert_not_reached ();
7247 }
7248 #endif
7249 return conv_arg;
7250 }
7251
7252 #ifndef DISABLE_JIT
7253
7254 #ifndef DISABLE_COM
7255
7256 static int
7257 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
7258 MonoMarshalSpec *spec,
7259 int conv_arg, MonoType **conv_arg_type,
7260 MarshalAction action)
7261 {
7262 MonoMethodBuilder *mb = m->mb;
7263 static MonoMethod *get_object_for_native_variant = NULL;
7264 static MonoMethod *get_native_variant_for_object = NULL;
7265
7266 mono_init_com_types ();
7267
7268 if (!get_object_for_native_variant)
7269 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
7270 g_assert (get_object_for_native_variant);
7271
7272 if (!get_native_variant_for_object)
7273 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
7274 g_assert (get_native_variant_for_object);
7275
7276 switch (action) {
7277 case MARSHAL_ACTION_CONV_IN: {
7278 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
7279
7280 if (t->byref)
7281 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7282 else
7283 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7284
7285 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
7286 break;
7287
7288 mono_mb_emit_ldarg (mb, argnum);
7289 if (t->byref)
7290 mono_mb_emit_byte(mb, CEE_LDIND_REF);
7291 mono_mb_emit_ldloc_addr (mb, conv_arg);
7292 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7293 break;
7294 }
7295
7296 case MARSHAL_ACTION_CONV_OUT: {
7297 static MonoMethod *variant_clear = NULL;
7298
7299 if (!variant_clear)
7300 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
7301 g_assert (variant_clear);
7302
7303
7304 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
7305 mono_mb_emit_ldarg (mb, argnum);
7306 mono_mb_emit_ldloc_addr (mb, conv_arg);
7307 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7308 mono_mb_emit_byte (mb, CEE_STIND_REF);
7309 }
7310
7311 mono_mb_emit_ldloc_addr (mb, conv_arg);
7312 mono_mb_emit_managed_call (mb, variant_clear, NULL);
7313 break;
7314 }
7315
7316 case MARSHAL_ACTION_PUSH:
7317 if (t->byref)
7318 mono_mb_emit_ldloc_addr (mb, conv_arg);
7319 else
7320 mono_mb_emit_ldloc (mb, conv_arg);
7321 break;
7322
7323 case MARSHAL_ACTION_CONV_RESULT: {
7324 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7325 mono_mb_emit_exception_marshal_directive (mb, msg);
7326 break;
7327 }
7328
7329 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7330 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7331
7332 if (t->byref)
7333 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7334 else
7335 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7336
7337 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
7338 break;
7339
7340 if (t->byref)
7341 mono_mb_emit_ldarg (mb, argnum);
7342 else
7343 mono_mb_emit_ldarg_addr (mb, argnum);
7344 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7345 mono_mb_emit_stloc (mb, conv_arg);
7346 break;
7347 }
7348
7349 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7350 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
7351 mono_mb_emit_ldloc (mb, conv_arg);
7352 mono_mb_emit_ldarg (mb, argnum);
7353 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7354 }
7355 break;
7356 }
7357
7358 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7359 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7360 mono_mb_emit_exception_marshal_directive (mb, msg);
7361 break;
7362 }
7363
7364 default:
7365 g_assert_not_reached ();
7366 }
7367
7368 return conv_arg;
7369 }
7370
7371 #endif /* DISABLE_COM */
7372 #endif /* DISABLE_JIT */
7373
7374 static gboolean
7375 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
7376 {
7377 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
7378 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
7379 return FALSE;
7380 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
7381 return TRUE;
7382 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
7383 default:
7384 #ifdef TARGET_WIN32
7385 return TRUE;
7386 #else
7387 return FALSE;
7388 #endif
7389 }
7390 }
7391
7392
7393 static int
7394 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7395 MonoMarshalSpec *spec,
7396 int conv_arg, MonoType **conv_arg_type,
7397 MarshalAction action)
7398 {
7399 #ifdef DISABLE_JIT
7400 switch (action) {
7401 case MARSHAL_ACTION_CONV_IN:
7402 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7403 break;
7404 case MARSHAL_ACTION_MANAGED_CONV_IN:
7405 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7406 break;
7407 }
7408 #else
7409 MonoMethodBuilder *mb = m->mb;
7410 MonoClass *klass = mono_class_from_mono_type (t);
7411 gboolean need_convert, need_free;
7412 MonoMarshalNative encoding;
7413
7414 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7415
7416 switch (action) {
7417 case MARSHAL_ACTION_CONV_IN:
7418 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7419 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7420
7421 if (klass->element_class->blittable) {
7422 mono_mb_emit_ldarg (mb, argnum);
7423 if (t->byref)
7424 mono_mb_emit_byte (mb, CEE_LDIND_I);
7425 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7426 mono_mb_emit_stloc (mb, conv_arg);
7427 } else {
7428 MonoClass *eklass;
7429 guint32 label1, label2, label3;
7430 int index_var, src_var, dest_ptr, esize;
7431 MonoMarshalConv conv;
7432 gboolean is_string = FALSE;
7433
7434 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7435
7436 eklass = klass->element_class;
7437
7438 if (eklass == mono_defaults.string_class) {
7439 is_string = TRUE;
7440 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7441 }
7442 else if (eklass == mono_defaults.stringbuilder_class) {
7443 is_string = TRUE;
7444 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7445 }
7446 else
7447 conv = -1;
7448
7449 if (is_string && conv == -1) {
7450 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7451 mono_mb_emit_exception_marshal_directive (mb, msg);
7452 break;
7453 }
7454
7455 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7456 mono_mb_emit_ldarg (mb, argnum);
7457 if (t->byref)
7458 mono_mb_emit_byte (mb, CEE_LDIND_I);
7459 mono_mb_emit_stloc (mb, src_var);
7460
7461 /* Check null */
7462 mono_mb_emit_ldloc (mb, src_var);
7463 mono_mb_emit_stloc (mb, conv_arg);
7464 mono_mb_emit_ldloc (mb, src_var);
7465 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7466
7467 if (is_string)
7468 esize = sizeof (gpointer);
7469 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
7470 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7471 else
7472 esize = mono_class_native_size (eklass, NULL);
7473
7474 /* allocate space for the native struct and store the address */
7475 mono_mb_emit_icon (mb, esize);
7476 mono_mb_emit_ldloc (mb, src_var);
7477 mono_mb_emit_byte (mb, CEE_LDLEN);
7478
7479 if (eklass == mono_defaults.string_class) {
7480 /* Make the array bigger for the terminating null */
7481 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7482 mono_mb_emit_byte (mb, CEE_ADD);
7483 }
7484 mono_mb_emit_byte (mb, CEE_MUL);
7485 mono_mb_emit_byte (mb, CEE_PREFIX1);
7486 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7487 mono_mb_emit_stloc (mb, conv_arg);
7488
7489 mono_mb_emit_ldloc (mb, conv_arg);
7490 mono_mb_emit_stloc (mb, dest_ptr);
7491
7492 /* Emit marshalling loop */
7493 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7494 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7495 mono_mb_emit_stloc (mb, index_var);
7496 label2 = mono_mb_get_label (mb);
7497 mono_mb_emit_ldloc (mb, index_var);
7498 mono_mb_emit_ldloc (mb, src_var);
7499 mono_mb_emit_byte (mb, CEE_LDLEN);
7500 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7501
7502 /* Emit marshalling code */
7503
7504 if (is_string) {
7505 mono_mb_emit_ldloc (mb, dest_ptr);
7506 mono_mb_emit_ldloc (mb, src_var);
7507 mono_mb_emit_ldloc (mb, index_var);
7508 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7509 mono_mb_emit_icall (mb, conv_to_icall (conv));
7510 mono_mb_emit_byte (mb, CEE_STIND_I);
7511 } else {
7512 /* set the src_ptr */
7513 mono_mb_emit_ldloc (mb, src_var);
7514 mono_mb_emit_ldloc (mb, index_var);
7515 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7516 mono_mb_emit_stloc (mb, 0);
7517
7518 /* set dst_ptr */
7519 mono_mb_emit_ldloc (mb, dest_ptr);
7520 mono_mb_emit_stloc (mb, 1);
7521
7522 /* emit valuetype conversion code */
7523 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
7524 }
7525
7526 mono_mb_emit_add_to_local (mb, index_var, 1);
7527 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7528
7529 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7530
7531 mono_mb_patch_branch (mb, label3);
7532
7533 if (eklass == mono_defaults.string_class) {
7534 /* Null terminate */
7535 mono_mb_emit_ldloc (mb, dest_ptr);
7536 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7537 mono_mb_emit_byte (mb, CEE_STIND_REF);
7538 }
7539
7540 mono_mb_patch_branch (mb, label1);
7541 }
7542
7543 break;
7544
7545 case MARSHAL_ACTION_CONV_OUT:
7546 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7547 need_convert = ((klass->element_class == mono_defaults.char_class) && (encoding == MONO_NATIVE_LPWSTR)) || (klass->element_class == mono_defaults.stringbuilder_class) || (t->attrs & PARAM_ATTRIBUTE_OUT);
7548 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7549 m->piinfo, spec);
7550
7551 if (need_convert || need_free) {
7552 /* FIXME: Optimize blittable case */
7553 MonoClass *eklass;
7554 guint32 label1, label2, label3;
7555 int index_var, src_ptr, loc, esize;
7556
7557 eklass = klass->element_class;
7558 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7559 esize = sizeof (gpointer);
7560 else if (eklass == mono_defaults.char_class)
7561 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7562 else
7563 esize = mono_class_native_size (eklass, NULL);
7564 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7565 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7566
7567 /* Check null */
7568 mono_mb_emit_ldarg (mb, argnum);
7569 if (t->byref)
7570 mono_mb_emit_byte (mb, CEE_LDIND_I);
7571 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7572
7573 mono_mb_emit_ldloc (mb, conv_arg);
7574 mono_mb_emit_stloc (mb, src_ptr);
7575
7576 /* Emit marshalling loop */
7577 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7578 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7579 mono_mb_emit_stloc (mb, index_var);
7580 label2 = mono_mb_get_label (mb);
7581 mono_mb_emit_ldloc (mb, index_var);
7582 mono_mb_emit_ldarg (mb, argnum);
7583 if (t->byref)
7584 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7585 mono_mb_emit_byte (mb, CEE_LDLEN);
7586 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7587
7588 /* Emit marshalling code */
7589
7590 if (eklass == mono_defaults.stringbuilder_class) {
7591 gboolean need_free2;
7592 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7593
7594 g_assert (conv != -1);
7595
7596 /* dest */
7597 mono_mb_emit_ldarg (mb, argnum);
7598 if (t->byref)
7599 mono_mb_emit_byte (mb, CEE_LDIND_I);
7600 mono_mb_emit_ldloc (mb, index_var);
7601 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7602
7603 /* src */
7604 mono_mb_emit_ldloc (mb, src_ptr);
7605 mono_mb_emit_byte (mb, CEE_LDIND_I);
7606
7607 mono_mb_emit_icall (mb, conv_to_icall (conv));
7608
7609 if (need_free) {
7610 /* src */
7611 mono_mb_emit_ldloc (mb, src_ptr);
7612 mono_mb_emit_byte (mb, CEE_LDIND_I);
7613
7614 mono_mb_emit_icall (mb, mono_marshal_free);
7615 }
7616 }
7617 else if (eklass == mono_defaults.string_class) {
7618 if (need_free) {
7619 /* src */
7620 mono_mb_emit_ldloc (mb, src_ptr);
7621 mono_mb_emit_byte (mb, CEE_LDIND_I);
7622
7623 mono_mb_emit_icall (mb, mono_marshal_free);
7624 }
7625 }
7626 else {
7627 if (need_convert) {
7628 /* set the src_ptr */
7629 mono_mb_emit_ldloc (mb, src_ptr);
7630 mono_mb_emit_stloc (mb, 0);
7631
7632 /* set dst_ptr */
7633 mono_mb_emit_ldarg (mb, argnum);
7634 if (t->byref)
7635 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7636 mono_mb_emit_ldloc (mb, index_var);
7637 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7638 mono_mb_emit_stloc (mb, 1);
7639
7640 /* emit valuetype conversion code */
7641 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
7642 }
7643
7644 if (need_free) {
7645 mono_mb_emit_ldloc (mb, src_ptr);
7646 mono_mb_emit_stloc (mb, loc);
7647 mono_mb_emit_ldloc (mb, loc);
7648
7649 emit_struct_free (mb, eklass, loc);
7650 }
7651 }
7652
7653 mono_mb_emit_add_to_local (mb, index_var, 1);
7654 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7655
7656 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7657
7658 mono_mb_patch_branch (mb, label1);
7659 mono_mb_patch_branch (mb, label3);
7660 }
7661
7662 if (klass->element_class->blittable) {
7663 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
7664
7665 mono_mb_emit_ldarg (mb, argnum);
7666 mono_mb_emit_ldloc (mb, conv_arg);
7667 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
7668 }
7669
7670 break;
7671
7672 case MARSHAL_ACTION_PUSH:
7673 if (t->byref)
7674 mono_mb_emit_ldloc_addr (mb, conv_arg);
7675 else
7676 mono_mb_emit_ldloc (mb, conv_arg);
7677 break;
7678
7679 case MARSHAL_ACTION_CONV_RESULT:
7680 /* fixme: we need conversions here */
7681 mono_mb_emit_stloc (mb, 3);
7682 break;
7683
7684 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7685 MonoClass *eklass;
7686 guint32 label1, label2, label3;
7687 int index_var, src_ptr, loc, esize, param_num, num_elem;
7688 MonoMarshalConv conv;
7689 gboolean is_string = FALSE;
7690
7691 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7692 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7693
7694 if (t->byref) {
7695 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7696 mono_mb_emit_exception_marshal_directive (mb, msg);
7697 return conv_arg;
7698 }
7699 if (!spec) {
7700 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7701 mono_mb_emit_exception_marshal_directive (mb, msg);
7702 return conv_arg;
7703 }
7704 if (spec->native != MONO_NATIVE_LPARRAY) {
7705 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7706 mono_mb_emit_exception_marshal_directive (mb, msg);
7707 return conv_arg;
7708 }
7709
7710 /* FIXME: t is from the method which is wrapped, not the delegate type */
7711 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7712
7713 param_num = spec->data.array_data.param_num;
7714 num_elem = spec->data.array_data.num_elem;
7715 if (spec->data.array_data.elem_mult == 0)
7716 /* param_num is not specified */
7717 param_num = -1;
7718
7719 if (param_num == -1) {
7720 if (num_elem <= 0) {
7721 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7722 mono_mb_emit_exception_marshal_directive (mb, msg);
7723 return conv_arg;
7724 }
7725 }
7726
7727 /* FIXME: Optimize blittable case */
7728
7729 eklass = klass->element_class;
7730 if (eklass == mono_defaults.string_class) {
7731 is_string = TRUE;
7732 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7733 }
7734 else if (eklass == mono_defaults.stringbuilder_class) {
7735 is_string = TRUE;
7736 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7737 }
7738 else
7739 conv = -1;
7740
7741 mono_marshal_load_type_info (eklass);
7742
7743 if (is_string)
7744 esize = sizeof (gpointer);
7745 else
7746 esize = mono_class_native_size (eklass, NULL);
7747 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7748 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7749
7750 mono_mb_emit_byte (mb, CEE_LDNULL);
7751 mono_mb_emit_stloc (mb, conv_arg);
7752
7753 /* Check param index */
7754 if (param_num != -1) {
7755 if (param_num >= m->sig->param_count) {
7756 char *msg = g_strdup ("Array size control parameter index is out of range.");
7757 mono_mb_emit_exception_marshal_directive (mb, msg);
7758 return conv_arg;
7759 }
7760 switch (m->sig->params [param_num]->type) {
7761 case MONO_TYPE_I1:
7762 case MONO_TYPE_U1:
7763 case MONO_TYPE_I2:
7764 case MONO_TYPE_U2:
7765 case MONO_TYPE_I4:
7766 case MONO_TYPE_U4:
7767 case MONO_TYPE_I:
7768 case MONO_TYPE_U:
7769 case MONO_TYPE_I8:
7770 case MONO_TYPE_U8:
7771 break;
7772 default: {
7773 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7774 mono_mb_emit_exception_marshal_directive (mb, msg);
7775 return conv_arg;
7776 }
7777 }
7778 }
7779
7780 /* Check null */
7781 mono_mb_emit_ldarg (mb, argnum);
7782 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7783
7784 mono_mb_emit_ldarg (mb, argnum);
7785 mono_mb_emit_stloc (mb, src_ptr);
7786
7787 /* Create managed array */
7788 /*
7789 * The LPArray marshalling spec says that sometimes param_num starts
7790 * from 1, sometimes it starts from 0. But MS seems to allways start
7791 * from 0.
7792 */
7793
7794 if (param_num == -1) {
7795 mono_mb_emit_icon (mb, num_elem);
7796 } else {
7797 mono_mb_emit_ldarg (mb, param_num);
7798 if (num_elem > 0) {
7799 mono_mb_emit_icon (mb, num_elem);
7800 mono_mb_emit_byte (mb, CEE_ADD);
7801 }
7802 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
7803 }
7804
7805 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7806 mono_mb_emit_stloc (mb, conv_arg);
7807
7808 if (eklass->blittable) {
7809 mono_mb_emit_ldloc (mb, conv_arg);
7810 mono_mb_emit_byte (mb, CEE_CONV_I);
7811 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7812 mono_mb_emit_byte (mb, CEE_ADD);
7813 mono_mb_emit_ldarg (mb, argnum);
7814 mono_mb_emit_ldloc (mb, conv_arg);
7815 mono_mb_emit_byte (mb, CEE_LDLEN);
7816 mono_mb_emit_icon (mb, esize);
7817 mono_mb_emit_byte (mb, CEE_MUL);
7818 mono_mb_emit_byte (mb, CEE_PREFIX1);
7819 mono_mb_emit_byte (mb, CEE_CPBLK);
7820 break;
7821 }
7822
7823 /* Emit marshalling loop */
7824 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7825 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7826 mono_mb_emit_stloc (mb, index_var);
7827 label2 = mono_mb_get_label (mb);
7828 mono_mb_emit_ldloc (mb, index_var);
7829 mono_mb_emit_ldloc (mb, conv_arg);
7830 mono_mb_emit_byte (mb, CEE_LDLEN);
7831 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7832
7833 /* Emit marshalling code */
7834 if (is_string) {
7835 g_assert (conv != -1);
7836
7837 mono_mb_emit_ldloc (mb, conv_arg);
7838 mono_mb_emit_ldloc (mb, index_var);
7839
7840 mono_mb_emit_ldloc (mb, src_ptr);
7841 mono_mb_emit_byte (mb, CEE_LDIND_I);
7842
7843 mono_mb_emit_icall (mb, conv_to_icall (conv));
7844 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7845 }
7846 else {
7847 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7848 mono_mb_emit_exception_marshal_directive (mb, msg);
7849 return conv_arg;
7850 }
7851
7852 mono_mb_emit_add_to_local (mb, index_var, 1);
7853 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7854
7855 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7856
7857 mono_mb_patch_branch (mb, label1);
7858 mono_mb_patch_branch (mb, label3);
7859
7860 break;
7861 }
7862 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7863 MonoClass *eklass;
7864 guint32 label1, label2, label3;
7865 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7866 MonoMarshalConv conv;
7867 gboolean is_string = FALSE;
7868
7869 if (!spec)
7870 /* Already handled in CONV_IN */
7871 break;
7872
7873 /* These are already checked in CONV_IN */
7874 g_assert (!t->byref);
7875 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7876 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7877
7878 param_num = spec->data.array_data.param_num;
7879 num_elem = spec->data.array_data.num_elem;
7880
7881 if (spec->data.array_data.elem_mult == 0)
7882 /* param_num is not specified */
7883 param_num = -1;
7884
7885 if (param_num == -1) {
7886 if (num_elem <= 0) {
7887 g_assert_not_reached ();
7888 }
7889 }
7890
7891 /* FIXME: Optimize blittable case */
7892
7893 eklass = klass->element_class;
7894 if (eklass == mono_defaults.string_class) {
7895 is_string = TRUE;
7896 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7897 }
7898 else if (eklass == mono_defaults.stringbuilder_class) {
7899 is_string = TRUE;
7900 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7901 }
7902 else
7903 conv = -1;
7904
7905 mono_marshal_load_type_info (eklass);
7906
7907 if (is_string)
7908 esize = sizeof (gpointer);
7909 else
7910 esize = mono_class_native_size (eklass, NULL);
7911
7912 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7913 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7914
7915 /* Check null */
7916 mono_mb_emit_ldloc (mb, conv_arg);
7917 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7918
7919 mono_mb_emit_ldarg (mb, argnum);
7920 mono_mb_emit_stloc (mb, dest_ptr);
7921
7922 if (eklass->blittable) {
7923 /* dest */
7924 mono_mb_emit_ldarg (mb, argnum);
7925 /* src */
7926 mono_mb_emit_ldloc (mb, conv_arg);
7927 mono_mb_emit_byte (mb, CEE_CONV_I);
7928 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7929 mono_mb_emit_byte (mb, CEE_ADD);
7930 /* length */
7931 mono_mb_emit_ldloc (mb, conv_arg);
7932 mono_mb_emit_byte (mb, CEE_LDLEN);
7933 mono_mb_emit_icon (mb, esize);
7934 mono_mb_emit_byte (mb, CEE_MUL);
7935 mono_mb_emit_byte (mb, CEE_PREFIX1);
7936 mono_mb_emit_byte (mb, CEE_CPBLK);
7937 break;
7938 }
7939
7940 /* Emit marshalling loop */
7941 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7942 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7943 mono_mb_emit_stloc (mb, index_var);
7944 label2 = mono_mb_get_label (mb);
7945 mono_mb_emit_ldloc (mb, index_var);
7946 mono_mb_emit_ldloc (mb, conv_arg);
7947 mono_mb_emit_byte (mb, CEE_LDLEN);
7948 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7949
7950 /* Emit marshalling code */
7951 if (is_string) {
7952 g_assert (conv != -1);
7953
7954 /* dest */
7955 mono_mb_emit_ldloc (mb, dest_ptr);
7956
7957 /* src */
7958 mono_mb_emit_ldloc (mb, conv_arg);
7959 mono_mb_emit_ldloc (mb, index_var);
7960
7961 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7962
7963 mono_mb_emit_icall (mb, conv_to_icall (conv));
7964 mono_mb_emit_byte (mb, CEE_STIND_I);
7965 }
7966 else {
7967 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7968 mono_mb_emit_exception_marshal_directive (mb, msg);
7969 return conv_arg;
7970 }
7971
7972 mono_mb_emit_add_to_local (mb, index_var, 1);
7973 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7974
7975 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7976
7977 mono_mb_patch_branch (mb, label1);
7978 mono_mb_patch_branch (mb, label3);
7979
7980 break;
7981 }
7982 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7983 MonoClass *eklass;
7984 guint32 label1, label2, label3;
7985 int index_var, src, dest, esize;
7986 MonoMarshalConv conv = -1;
7987 gboolean is_string = FALSE;
7988
7989 g_assert (!t->byref);
7990
7991 eklass = klass->element_class;
7992
7993 mono_marshal_load_type_info (eklass);
7994
7995 if (eklass == mono_defaults.string_class) {
7996 is_string = TRUE;
7997 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7998 }
7999 else {
8000 g_assert_not_reached ();
8001 }
8002
8003 if (is_string)
8004 esize = sizeof (gpointer);
8005 else if (eklass == mono_defaults.char_class)
8006 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
8007 else
8008 esize = mono_class_native_size (eklass, NULL);
8009
8010 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8011 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8012
8013 mono_mb_emit_stloc (mb, src);
8014 mono_mb_emit_ldloc (mb, src);
8015 mono_mb_emit_stloc (mb, 3);
8016
8017 /* Check for null */
8018 mono_mb_emit_ldloc (mb, src);
8019 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8020
8021 /* Allocate native array */
8022 mono_mb_emit_icon (mb, esize);
8023 mono_mb_emit_ldloc (mb, src);
8024 mono_mb_emit_byte (mb, CEE_LDLEN);
8025
8026 if (eklass == mono_defaults.string_class) {
8027 /* Make the array bigger for the terminating null */
8028 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
8029 mono_mb_emit_byte (mb, CEE_ADD);
8030 }
8031 mono_mb_emit_byte (mb, CEE_MUL);
8032 mono_mb_emit_icall (mb, mono_marshal_alloc);
8033 mono_mb_emit_stloc (mb, dest);
8034 mono_mb_emit_ldloc (mb, dest);
8035 mono_mb_emit_stloc (mb, 3);
8036
8037 /* Emit marshalling loop */
8038 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8039 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8040 mono_mb_emit_stloc (mb, index_var);
8041 label2 = mono_mb_get_label (mb);
8042 mono_mb_emit_ldloc (mb, index_var);
8043 mono_mb_emit_ldloc (mb, src);
8044 mono_mb_emit_byte (mb, CEE_LDLEN);
8045 label3 = mono_mb_emit_branch (mb, CEE_BGE);
8046
8047 /* Emit marshalling code */
8048 if (is_string) {
8049 g_assert (conv != -1);
8050
8051 /* dest */
8052 mono_mb_emit_ldloc (mb, dest);
8053
8054 /* src */
8055 mono_mb_emit_ldloc (mb, src);
8056 mono_mb_emit_ldloc (mb, index_var);
8057
8058 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
8059
8060 mono_mb_emit_icall (mb, conv_to_icall (conv));
8061 mono_mb_emit_byte (mb, CEE_STIND_I);
8062 }
8063 else {
8064 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
8065 mono_mb_emit_exception_marshal_directive (mb, msg);
8066 return conv_arg;
8067 }
8068
8069 mono_mb_emit_add_to_local (mb, index_var, 1);
8070 mono_mb_emit_add_to_local (mb, dest, esize);
8071
8072 mono_mb_emit_branch_label (mb, CEE_BR, label2);
8073
8074 mono_mb_patch_branch (mb, label3);
8075 mono_mb_patch_branch (mb, label1);
8076 break;
8077 }
8078 default:
8079 g_assert_not_reached ();
8080 }
8081 #endif
8082 return conv_arg;
8083 }
8084
8085 static MonoType*
8086 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
8087 {
8088 if (spec == NULL) {
8089 return &mono_defaults.int32_class->byval_arg;
8090 } else {
8091 switch (spec->native) {
8092 case MONO_NATIVE_I1:
8093 case MONO_NATIVE_U1:
8094 return &mono_defaults.byte_class->byval_arg;
8095 case MONO_NATIVE_VARIANTBOOL:
8096 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
8097 return &mono_defaults.int16_class->byval_arg;
8098 case MONO_NATIVE_BOOLEAN:
8099 return &mono_defaults.int32_class->byval_arg;
8100 default:
8101 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
8102 return &mono_defaults.int32_class->byval_arg;
8103 }
8104 }
8105 }
8106
8107 static MonoClass*
8108 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
8109 {
8110 MonoClass* conv_arg_class = mono_defaults.int32_class;
8111 if (spec) {
8112 switch (spec->native) {
8113 case MONO_NATIVE_I1:
8114 case MONO_NATIVE_U1:
8115 conv_arg_class = mono_defaults.byte_class;
8116 if (ldop) *ldop = CEE_LDIND_I1;
8117 break;
8118 case MONO_NATIVE_VARIANTBOOL:
8119 conv_arg_class = mono_defaults.int16_class;
8120 if (ldop) *ldop = CEE_LDIND_I2;
8121 break;
8122 case MONO_NATIVE_BOOLEAN:
8123 break;
8124 default:
8125 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
8126 }
8127 }
8128 return conv_arg_class;
8129 }
8130
8131 static int
8132 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
8133 MonoMarshalSpec *spec,
8134 int conv_arg, MonoType **conv_arg_type,
8135 MarshalAction action)
8136 {
8137 #ifdef DISABLE_JIT
8138 switch (action) {
8139 case MARSHAL_ACTION_CONV_IN:
8140 if (t->byref)
8141 *conv_arg_type = &mono_defaults.int_class->byval_arg;
8142 else
8143 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
8144 break;
8145
8146 case MARSHAL_ACTION_MANAGED_CONV_IN: {
8147 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
8148 if (t->byref)
8149 *conv_arg_type = &conv_arg_class->this_arg;
8150 else
8151 *conv_arg_type = &conv_arg_class->byval_arg;
8152 break;
8153 }
8154
8155 }
8156 #else
8157 MonoMethodBuilder *mb = m->mb;
8158
8159 switch (action) {
8160 case MARSHAL_ACTION_CONV_IN: {
8161 MonoType *local_type;
8162 int label_false;
8163 guint8 ldc_op = CEE_LDC_I4_1;
8164
8165 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
8166 if (t->byref)
8167 *conv_arg_type = &mono_defaults.int_class->byval_arg;
8168 else
8169 *conv_arg_type = local_type;
8170 conv_arg = mono_mb_add_local (mb, local_type);
8171
8172 mono_mb_emit_ldarg (mb, argnum);
8173 if (t->byref)
8174 mono_mb_emit_byte (mb, CEE_LDIND_I1);
8175 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
8176 mono_mb_emit_byte (mb, ldc_op);
8177 mono_mb_emit_stloc (mb, conv_arg);
8178 mono_mb_patch_branch (mb, label_false);
8179
8180 break;
8181 }
8182
8183 case MARSHAL_ACTION_CONV_OUT:
8184 {
8185 int label_false, label_end;
8186 if (!t->byref)
8187 break;
8188
8189 mono_mb_emit_ldarg (mb, argnum);
8190 mono_mb_emit_ldloc (mb, conv_arg);
8191
8192 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
8193 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
8194
8195 label_end = mono_mb_emit_branch (mb, CEE_BR);
8196 mono_mb_patch_branch (mb, label_false);
8197 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8198 mono_mb_patch_branch (mb, label_end);
8199
8200 mono_mb_emit_byte (mb, CEE_STIND_I1);
8201 break;
8202 }
8203
8204 case MARSHAL_ACTION_PUSH:
8205 if (t->byref)
8206 mono_mb_emit_ldloc_addr (mb, conv_arg);
8207 else if (conv_arg)
8208 mono_mb_emit_ldloc (mb, conv_arg);
8209 else
8210 mono_mb_emit_ldarg (mb, argnum);
8211 break;
8212
8213 case MARSHAL_ACTION_CONV_RESULT:
8214 /* maybe we need to make sure that it fits within 8 bits */
8215 mono_mb_emit_stloc (mb, 3);
8216 break;
8217
8218 case MARSHAL_ACTION_MANAGED_CONV_IN: {
8219 MonoClass* conv_arg_class = mono_defaults.int32_class;
8220 guint8 ldop = CEE_LDIND_I4;
8221 int label_null, label_false;
8222
8223 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
8224 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8225
8226 if (t->byref)
8227 *conv_arg_type = &conv_arg_class->this_arg;
8228 else
8229 *conv_arg_type = &conv_arg_class->byval_arg;
8230
8231
8232 mono_mb_emit_ldarg (mb, argnum);
8233
8234 /* Check null */
8235 if (t->byref) {
8236 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
8237 mono_mb_emit_ldarg (mb, argnum);
8238 mono_mb_emit_byte (mb, ldop);
8239 } else
8240 label_null = 0;
8241
8242 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
8243 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
8244 mono_mb_emit_stloc (mb, conv_arg);
8245 mono_mb_patch_branch (mb, label_false);
8246
8247 if (t->byref)
8248 mono_mb_patch_branch (mb, label_null);
8249 break;
8250 }
8251
8252 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
8253 guint8 stop = CEE_STIND_I4;
8254 guint8 ldc_op = CEE_LDC_I4_1;
8255 int label_null,label_false, label_end;;
8256
8257 if (!t->byref)
8258 break;
8259 if (spec) {
8260 switch (spec->native) {
8261 case MONO_NATIVE_I1:
8262 case MONO_NATIVE_U1:
8263 stop = CEE_STIND_I1;
8264 break;
8265 case MONO_NATIVE_VARIANTBOOL:
8266 stop = CEE_STIND_I2;
8267 ldc_op = CEE_LDC_I4_M1;
8268 break;
8269 default:
8270 break;
8271 }
8272 }
8273
8274 /* Check null */
8275 mono_mb_emit_ldarg (mb, argnum);
8276 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
8277
8278 mono_mb_emit_ldarg (mb, argnum);
8279 mono_mb_emit_ldloc (mb, conv_arg);
8280
8281 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
8282 mono_mb_emit_byte (mb, ldc_op);
8283 label_end = mono_mb_emit_branch (mb, CEE_BR);
8284
8285 mono_mb_patch_branch (mb, label_false);
8286 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8287 mono_mb_patch_branch (mb, label_end);
8288
8289 mono_mb_emit_byte (mb, stop);
8290 mono_mb_patch_branch (mb, label_null);
8291 break;
8292 }
8293
8294 default:
8295 g_assert_not_reached ();
8296 }
8297 #endif
8298 return conv_arg;
8299 }
8300
8301 static int
8302 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
8303 MonoMarshalSpec *spec, int conv_arg,
8304 MonoType **conv_arg_type, MarshalAction action)
8305 {
8306 #ifndef DISABLE_JIT
8307 MonoMethodBuilder *mb = m->mb;
8308
8309 switch (action) {
8310 case MARSHAL_ACTION_CONV_IN:
8311 /* MS seems to allow this in some cases, ie. bxc #158 */
8312 /*
8313 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
8314 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
8315 mono_mb_emit_exception_marshal_directive (m->mb, msg);
8316 }
8317 */
8318 break;
8319
8320 case MARSHAL_ACTION_PUSH:
8321 mono_mb_emit_ldarg (mb, argnum);
8322 break;
8323
8324 case MARSHAL_ACTION_CONV_RESULT:
8325 /* no conversions necessary */
8326 mono_mb_emit_stloc (mb, 3);
8327 break;
8328
8329 default:
8330 break;
8331 }
8332 #endif
8333 return conv_arg;
8334 }
8335
8336 static int
8337 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
8338 MonoMarshalSpec *spec, int conv_arg,
8339 MonoType **conv_arg_type, MarshalAction action)
8340 {
8341 #ifndef DISABLE_JIT
8342 MonoMethodBuilder *mb = m->mb;
8343
8344 switch (action) {
8345 case MARSHAL_ACTION_PUSH:
8346 /* fixme: dont know how to marshal that. We cant simply
8347 * convert it to a one byte UTF8 character, because an
8348 * unicode character may need more that one byte in UTF8 */
8349 mono_mb_emit_ldarg (mb, argnum);
8350 break;
8351
8352 case MARSHAL_ACTION_CONV_RESULT:
8353 /* fixme: we need conversions here */
8354 mono_mb_emit_stloc (mb, 3);
8355 break;
8356
8357 default:
8358 break;
8359 }
8360 #endif
8361 return conv_arg;
8362 }
8363
8364 static int
8365 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
8366 MonoMarshalSpec *spec, int conv_arg,
8367 MonoType **conv_arg_type, MarshalAction action)
8368 {
8369 #ifndef DISABLE_JIT
8370 MonoMethodBuilder *mb = m->mb;
8371
8372 switch (action) {
8373 case MARSHAL_ACTION_PUSH:
8374 mono_mb_emit_ldarg (mb, argnum);
8375 break;
8376
8377 case MARSHAL_ACTION_CONV_RESULT:
8378 /* no conversions necessary */
8379 mono_mb_emit_stloc (mb, 3);
8380 break;
8381
8382 default:
8383 break;
8384 }
8385 #endif
8386 return conv_arg;
8387 }
8388
8389 static int
8390 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
8391 MonoMarshalSpec *spec, int conv_arg,
8392 MonoType **conv_arg_type, MarshalAction action)
8393 {
8394 /* Ensure that we have marshalling info for this param */
8395 mono_marshal_load_type_info (mono_class_from_mono_type (t));
8396
8397 if (spec && spec->native == MONO_NATIVE_CUSTOM)
8398 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8399
8400 if (spec && spec->native == MONO_NATIVE_ASANY)
8401 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8402
8403 switch (t->type) {
8404 case MONO_TYPE_VALUETYPE:
8405 if (t->data.klass == mono_defaults.handleref_class)
8406 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8407
8408 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8409 case MONO_TYPE_STRING:
8410 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8411 case MONO_TYPE_CLASS:
8412 case MONO_TYPE_OBJECT:
8413 #ifndef DISABLE_COM
8414 if (spec && spec->native == MONO_NATIVE_STRUCT)
8415 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8416
8417 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
8418 spec->native == MONO_NATIVE_IDISPATCH ||
8419 spec->native == MONO_NATIVE_INTERFACE))
8420 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8421 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
8422 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
8423 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
8424 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8425 #endif
8426
8427 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
8428 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
8429 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8430
8431 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8432 case MONO_TYPE_ARRAY:
8433 case MONO_TYPE_SZARRAY:
8434 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8435 case MONO_TYPE_BOOLEAN:
8436 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8437 case MONO_TYPE_PTR:
8438 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8439 case MONO_TYPE_CHAR:
8440 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8441 case MONO_TYPE_I1:
8442 case MONO_TYPE_U1:
8443 case MONO_TYPE_I2:
8444 case MONO_TYPE_U2:
8445 case MONO_TYPE_I4:
8446 case MONO_TYPE_U4:
8447 case MONO_TYPE_I:
8448 case MONO_TYPE_U:
8449 case MONO_TYPE_R4:
8450 case MONO_TYPE_R8:
8451 case MONO_TYPE_I8:
8452 case MONO_TYPE_U8:
8453 case MONO_TYPE_FNPTR:
8454 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8455 case MONO_TYPE_GENERICINST:
8456 if (mono_type_generic_inst_is_valuetype (t))
8457 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8458 else
8459 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8460 }
8461 return conv_arg;
8462 }
8463
8464 #ifndef DISABLE_JIT
8465 /**
8466 * mono_marshal_emit_native_wrapper:
8467 * @image: the image to use for looking up custom marshallers
8468 * @sig: The signature of the native function
8469 * @piinfo: Marshalling information
8470 * @mspecs: Marshalling information
8471 * @aot: whenever the created method will be compiled by the AOT compiler
8472 * @method: if non-NULL, the pinvoke method to call
8473 * @check_exceptions: Whenever to check for pending exceptions after the native call
8474 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
8475 *
8476 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8477 */
8478 void
8479 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions, gboolean func_param)
8480 {
8481 EmitMarshalContext m;
8482 MonoMethodSignature *csig;
8483 MonoClass *klass;
8484 int i, argnum, *tmp_locals;
8485 int type, param_shift = 0;
8486 static MonoMethodSignature *get_last_error_sig = NULL;
8487
8488 m.mb = mb;
8489 m.piinfo = piinfo;
8490
8491 /* we copy the signature, so that we can set pinvoke to 0 */
8492 if (func_param) {
8493 /* The function address is passed as the first argument */
8494 g_assert (!sig->hasthis);
8495 param_shift += 1;
8496 }
8497 csig = signature_dup (mb->method->klass->image, sig);
8498 csig->pinvoke = 1;
8499 m.csig = csig;
8500 m.image = image;
8501
8502 if (sig->hasthis)
8503 param_shift += 1;
8504
8505 /* we allocate local for use with emit_struct_conv() */
8506 /* allocate local 0 (pointer) src_ptr */
8507 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8508 /* allocate local 1 (pointer) dst_ptr */
8509 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8510 /* allocate local 2 (boolean) delete_old */
8511 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8512
8513 /* delete_old = FALSE */
8514 mono_mb_emit_icon (mb, 0);
8515 mono_mb_emit_stloc (mb, 2);
8516
8517 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8518 /* allocate local 3 to store the return value */
8519 mono_mb_add_local (mb, sig->ret);
8520 }
8521
8522 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8523 /* Return type custom marshaling */
8524 /*
8525 * Since we can't determine the return type of the unmanaged function,
8526 * we assume it returns a pointer, and pass that pointer to
8527 * MarshalNativeToManaged.
8528 */
8529 csig->ret = &mono_defaults.int_class->byval_arg;
8530 }
8531
8532 /* we first do all conversions */
8533 tmp_locals = alloca (sizeof (int) * sig->param_count);
8534 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8535
8536 for (i = 0; i < sig->param_count; i ++) {
8537 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8538 }
8539
8540 /* push all arguments */
8541
8542 if (sig->hasthis)
8543 mono_mb_emit_byte (mb, CEE_LDARG_0);
8544
8545 for (i = 0; i < sig->param_count; i++) {
8546 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8547 }
8548
8549 /* call the native method */
8550 if (func_param) {
8551 mono_mb_emit_byte (mb, CEE_LDARG_0);
8552 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
8553 mono_mb_emit_byte (mb, CEE_LDIND_I);
8554 mono_mb_emit_calli (mb, csig);
8555 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8556 #ifndef DISABLE_COM
8557 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8558 #else
8559 g_assert_not_reached ();
8560 #endif
8561 }
8562 else {
8563 if (aot) {
8564 /* Reuse the ICALL_ADDR opcode for pinvokes too */
8565 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8566 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8567 mono_mb_emit_calli (mb, csig);
8568 } else {
8569 mono_mb_emit_native_call (mb, csig, func);
8570 }
8571 }
8572
8573 /* Set LastError if needed */
8574 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8575 if (!get_last_error_sig) {
8576 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8577 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8578 get_last_error_sig->pinvoke = 1;
8579 }
8580
8581 #ifdef TARGET_WIN32
8582 /*
8583 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8584 * clobber its value.
8585 */
8586 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8587 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8588 #else
8589 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8590 #endif
8591 }
8592
8593 /* convert the result */
8594 if (!sig->ret->byref) {
8595 MonoMarshalSpec *spec = mspecs [0];
8596 type = sig->ret->type;
8597
8598 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8599 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8600 } else {
8601
8602 handle_enum:
8603 switch (type) {
8604 case MONO_TYPE_VOID:
8605 break;
8606 case MONO_TYPE_VALUETYPE:
8607 klass = sig->ret->data.klass;
8608 if (klass->enumtype) {
8609 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
8610 goto handle_enum;
8611 }
8612 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8613 break;
8614 case MONO_TYPE_I1:
8615 case MONO_TYPE_U1:
8616 case MONO_TYPE_I2:
8617 case MONO_TYPE_U2:
8618 case MONO_TYPE_I4:
8619 case MONO_TYPE_U4:
8620 case MONO_TYPE_I:
8621 case MONO_TYPE_U:
8622 case MONO_TYPE_R4:
8623 case MONO_TYPE_R8:
8624 case MONO_TYPE_I8:
8625 case MONO_TYPE_U8:
8626 case MONO_TYPE_FNPTR:
8627 case MONO_TYPE_STRING:
8628 case MONO_TYPE_CLASS:
8629 case MONO_TYPE_OBJECT:
8630 case MONO_TYPE_BOOLEAN:
8631 case MONO_TYPE_ARRAY:
8632 case MONO_TYPE_SZARRAY:
8633 case MONO_TYPE_CHAR:
8634 case MONO_TYPE_PTR:
8635 case MONO_TYPE_GENERICINST:
8636 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8637 break;
8638 case MONO_TYPE_TYPEDBYREF:
8639 default:
8640 g_warning ("return type 0x%02x unknown", sig->ret->type);
8641 g_assert_not_reached ();
8642 }
8643 }
8644 } else {
8645 mono_mb_emit_stloc (mb, 3);
8646 }
8647
8648 /*
8649 * Need to call this after converting the result since MONO_VTADDR needs
8650 * to be adjacent to the call instruction.
8651 */
8652 if (check_exceptions)
8653 emit_thread_interrupt_checkpoint (mb);
8654
8655 /* we need to convert byref arguments back and free string arrays */
8656 for (i = 0; i < sig->param_count; i++) {
8657 MonoType *t = sig->params [i];
8658 MonoMarshalSpec *spec = mspecs [i + 1];
8659
8660 argnum = i + param_shift;
8661
8662 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8663 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8664 continue;
8665 }
8666
8667 switch (t->type) {
8668 case MONO_TYPE_STRING:
8669 case MONO_TYPE_VALUETYPE:
8670 case MONO_TYPE_CLASS:
8671 case MONO_TYPE_OBJECT:
8672 case MONO_TYPE_SZARRAY:
8673 case MONO_TYPE_BOOLEAN:
8674 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8675 break;
8676 }
8677 }
8678
8679 if (!MONO_TYPE_IS_VOID(sig->ret))
8680 mono_mb_emit_ldloc (mb, 3);
8681
8682 mono_mb_emit_byte (mb, CEE_RET);
8683 }
8684 #endif /* DISABLE_JIT */
8685
8686
8687 G_GNUC_UNUSED static void
8688 code_for (MonoMethod *method) {
8689 MonoMethodHeader *header = mono_method_get_header (method);
8690 printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (method, TRUE), mono_disasm_code (0, method, header->code, header->code + header->code_size));
8691 }
8692
8693 /**
8694 * mono_marshal_get_native_wrapper:
8695 * @method: The MonoMethod to wrap.
8696 * @check_exceptions: Whenever to check for pending exceptions
8697 *
8698 * generates IL code for the pinvoke wrapper (the generated method
8699 * calls the unmanaged code in piinfo->addr)
8700 * The wrapper info for the wrapper is a WrapperInfo structure.
8701 */
8702 MonoMethod *
8703 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8704 {
8705 MonoMethodSignature *sig, *csig;
8706 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8707 MonoMethodBuilder *mb;
8708 MonoMarshalSpec **mspecs;
8709 MonoMethod *res;
8710 GHashTable *cache;
8711 gboolean pinvoke = FALSE;
8712 gpointer iter;
8713 int i;
8714 const char *exc_class = "MissingMethodException";
8715 const char *exc_arg = NULL;
8716 WrapperInfo *info;
8717
8718 g_assert (method != NULL);
8719 g_assert (mono_method_signature (method)->pinvoke);
8720
8721 if (aot)
8722 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8723 else
8724 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8725 if ((res = mono_marshal_find_in_cache (cache, method)))
8726 return res;
8727
8728 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8729 #ifndef DISABLE_COM
8730 return mono_cominterop_get_native_wrapper (method);
8731 #else
8732 g_assert_not_reached ();
8733 #endif
8734 }
8735
8736 sig = mono_method_signature (method);
8737
8738 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8739 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8740 pinvoke = TRUE;
8741
8742 if (!piinfo->addr) {
8743 if (pinvoke)
8744 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8745 exc_arg = "Method contains unsupported native code";
8746 else
8747 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8748 else
8749 piinfo->addr = mono_lookup_internal_call (method);
8750 }
8751
8752 /* hack - redirect certain string constructors to CreateString */
8753 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8754 g_assert (!pinvoke);
8755 g_assert (method->string_ctor);
8756 g_assert (sig->hasthis);
8757
8758 /* CreateString returns a value */
8759 csig = signature_dup (method->klass->image, sig);
8760 csig->ret = &mono_defaults.string_class->byval_arg;
8761 csig->pinvoke = 0;
8762
8763 iter = NULL;
8764 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8765 if (!strcmp ("CreateString", res->name) &&
8766 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8767 WrapperInfo *info;
8768
8769 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8770 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8771
8772 /* create a wrapper to preserve .ctor in stack trace */
8773 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8774
8775 #ifndef DISABLE_JIT
8776 mono_mb_emit_byte (mb, CEE_LDARG_0);
8777 for (i = 1; i <= csig->param_count; i++)
8778 mono_mb_emit_ldarg (mb, i);
8779 mono_mb_emit_managed_call (mb, res, NULL);
8780 mono_mb_emit_byte (mb, CEE_RET);
8781 #endif
8782
8783 /* use native_wrapper_cache because internal calls are looked up there */
8784 res = mono_mb_create_and_cache (cache, method,
8785 mb, csig, csig->param_count + 1);
8786
8787 mono_mb_free (mb);
8788
8789 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_STRING_CTOR);
8790 info->d.string_ctor.method = method;
8791
8792 mono_marshal_set_wrapper_info (res, info);
8793
8794 return res;
8795 }
8796 }
8797
8798 /* exception will be thrown */
8799 piinfo->addr = NULL;
8800 g_warning ("cannot find CreateString for .ctor");
8801 }
8802
8803 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8804
8805 mb->method->save_lmf = 1;
8806
8807 /*
8808 * In AOT mode and embedding scenarios, it is possible that the icall is not
8809 * registered in the runtime doing the AOT compilation.
8810 */
8811 if (!piinfo->addr && !aot) {
8812 #ifndef DISABLE_JIT
8813 mono_mb_emit_exception (mb, exc_class, exc_arg);
8814 #endif
8815 csig = signature_dup (method->klass->image, sig);
8816 csig->pinvoke = 0;
8817 res = mono_mb_create_and_cache (cache, method,
8818 mb, csig, csig->param_count + 16);
8819 mono_mb_free (mb);
8820
8821 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
8822 info->d.managed_to_native.method = method;
8823 mono_marshal_set_wrapper_info (res, info);
8824
8825 return res;
8826 }
8827
8828 /* internal calls: we simply push all arguments and call the method (no conversions) */
8829 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8830 if (sig->hasthis)
8831 csig = signature_dup_add_this (method->klass->image, sig, method->klass);
8832 else
8833 csig = signature_dup (method->klass->image, sig);
8834
8835 /* hack - string constructors returns a value */
8836 if (method->string_ctor)
8837 csig->ret = &mono_defaults.string_class->byval_arg;
8838
8839 #ifndef DISABLE_JIT
8840 if (sig->hasthis) {
8841 int pos;
8842
8843 /*
8844 * Add a null check since public icalls can be called with 'call' which
8845 * does no such check.
8846 */
8847 mono_mb_emit_byte (mb, CEE_LDARG_0);
8848 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8849 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8850 mono_mb_patch_branch (mb, pos);
8851
8852 mono_mb_emit_byte (mb, CEE_LDARG_0);
8853 }
8854
8855 for (i = 0; i < sig->param_count; i++)
8856 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8857
8858 if (aot) {
8859 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8860 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8861 mono_mb_emit_calli (mb, csig);
8862 } else {
8863 g_assert (piinfo->addr);
8864 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8865 }
8866 if (check_exceptions)
8867 emit_thread_interrupt_checkpoint (mb);
8868 mono_mb_emit_byte (mb, CEE_RET);
8869 #endif
8870
8871 csig = signature_dup (method->klass->image, csig);
8872 csig->pinvoke = 0;
8873 res = mono_mb_create_and_cache (cache, method,
8874 mb, csig, csig->param_count + 16);
8875
8876 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
8877 info->d.managed_to_native.method = method;
8878 mono_marshal_set_wrapper_info (res, info);
8879
8880 mono_mb_free (mb);
8881 return res;
8882 }
8883
8884 g_assert (pinvoke);
8885 if (!aot)
8886 g_assert (piinfo->addr);
8887
8888 #ifndef DISABLE_JIT
8889 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8890 mono_method_get_marshal_info (method, mspecs);
8891
8892 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
8893 #endif
8894
8895 csig = signature_dup (method->klass->image, sig);
8896 csig->pinvoke = 0;
8897 res = mono_mb_create_and_cache (cache, method,
8898 mb, csig, csig->param_count + 16);
8899 mono_mb_free (mb);
8900
8901 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
8902 info->d.managed_to_native.method = method;
8903 mono_marshal_set_wrapper_info (res, info);
8904
8905 #ifndef DISABLE_JIT
8906 for (i = sig->param_count; i >= 0; i--)
8907 if (mspecs [i])
8908 mono_metadata_free_marshal_spec (mspecs [i]);
8909 g_free (mspecs);
8910 #endif
8911
8912 /* code_for (res); */
8913
8914 return res;
8915 }
8916
8917 /**
8918 * mono_marshal_get_native_func_wrapper:
8919 * @image: The image to use for memory allocation and for looking up custom marshallers.
8920 * @sig: The signature of the function
8921 * @func: The native function to wrap
8922 *
8923 * Returns a wrapper method around native functions, similar to the pinvoke
8924 * wrapper.
8925 */
8926 MonoMethod *
8927 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8928 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8929 {
8930 MonoMethodSignature *csig;
8931
8932 MonoMethodBuilder *mb;
8933 MonoMethod *res;
8934 GHashTable *cache;
8935 char *name;
8936
8937 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8938 if ((res = mono_marshal_find_in_cache (cache, func)))
8939 return res;
8940
8941 name = g_strdup_printf ("wrapper_native_%p", func);
8942 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8943 mb->method->save_lmf = 1;
8944
8945 #ifndef DISABLE_JIT
8946 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
8947 #endif
8948
8949 csig = signature_dup (image, sig);
8950 csig->pinvoke = 0;
8951 res = mono_mb_create_and_cache (cache, func,
8952 mb, csig, csig->param_count + 16);
8953 mono_mb_free (mb);
8954
8955 mono_marshal_set_wrapper_info (res, NULL);
8956
8957 return res;
8958 }
8959
8960 /*
8961 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
8962 * AOT.
8963 */
8964 MonoMethod*
8965 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
8966 {
8967 MonoMethodSignature *sig, *csig;
8968 MonoMethodBuilder *mb;
8969 MonoMethod *res;
8970 GHashTable *cache;
8971 char *name;
8972 WrapperInfo *info;
8973 MonoMethodPInvoke mpiinfo;
8974 MonoMethodPInvoke *piinfo = &mpiinfo;
8975 MonoMarshalSpec **mspecs;
8976 MonoMethod *invoke = mono_get_delegate_invoke (klass);
8977 MonoImage *image = invoke->klass->image;
8978 int i;
8979
8980 // FIXME: include UnmanagedFunctionPointerAttribute info
8981
8982 /*
8983 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
8984 */
8985 cache = get_cache (&image->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8986 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8987 return res;
8988
8989 memset (&mpiinfo, 0, sizeof (mpiinfo));
8990 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8991
8992 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8993 mono_method_get_marshal_info (invoke, mspecs);
8994 /* Freed below so don't alloc from mempool */
8995 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8996 sig->hasthis = 0;
8997
8998 name = g_strdup_printf ("wrapper_aot_native");
8999 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
9000 mb->method->save_lmf = 1;
9001
9002 #ifndef DISABLE_JIT
9003 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
9004 #endif
9005
9006 g_assert (!sig->hasthis);
9007 csig = signature_dup_add_this (image, sig, mono_defaults.int_class);
9008 csig->pinvoke = 0;
9009 res = mono_mb_create_and_cache (cache, invoke,
9010 mb, csig, csig->param_count + 16);
9011 mono_mb_free (mb);
9012
9013 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
9014 info->d.managed_to_native.method = invoke;
9015
9016 mono_marshal_set_wrapper_info (res, info);
9017
9018 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
9019 if (mspecs [i])
9020 mono_metadata_free_marshal_spec (mspecs [i]);
9021 g_free (mspecs);
9022 g_free (sig);
9023
9024 return res;
9025 }
9026
9027 /*
9028 * mono_marshal_emit_managed_wrapper:
9029 *
9030 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
9031 * the delegate which wraps the managed method to be called. For closed delegates,
9032 * it could have fewer parameters than the method it wraps.
9033 * THIS_LOC is the memory location where the target of the delegate is stored.
9034 */
9035 void
9036 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
9037 {
9038 #ifdef DISABLE_JIT
9039 MonoMethodSignature *sig, *csig;
9040 int i;
9041
9042 sig = m->sig;
9043 csig = m->csig;
9044
9045 /* we first do all conversions */
9046 for (i = 0; i < sig->param_count; i ++) {
9047 MonoType *t = sig->params [i];
9048
9049 switch (t->type) {
9050 case MONO_TYPE_OBJECT:
9051 case MONO_TYPE_CLASS:
9052 case MONO_TYPE_VALUETYPE:
9053 case MONO_TYPE_ARRAY:
9054 case MONO_TYPE_SZARRAY:
9055 case MONO_TYPE_STRING:
9056 case MONO_TYPE_BOOLEAN:
9057 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
9058 }
9059 }
9060 #else
9061 MonoMethodSignature *sig, *csig;
9062 int i, *tmp_locals;
9063 gboolean closed = FALSE;
9064
9065 sig = m->sig;
9066 csig = m->csig;
9067
9068 /* allocate local 0 (pointer) src_ptr */
9069 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9070 /* allocate local 1 (pointer) dst_ptr */
9071 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9072 /* allocate local 2 (boolean) delete_old */
9073 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9074
9075 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
9076 /* Closed delegate */
9077 g_assert (sig->param_count == invoke_sig->param_count + 1);
9078 closed = TRUE;
9079 /* Use a new signature without the first argument */
9080 sig = mono_metadata_signature_dup (sig);
9081 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
9082 sig->param_count --;
9083 }
9084
9085 if (!MONO_TYPE_IS_VOID(sig->ret)) {
9086 /* allocate local 3 to store the return value */
9087 mono_mb_add_local (mb, sig->ret);
9088 }
9089
9090 mono_mb_emit_icon (mb, 0);
9091 mono_mb_emit_stloc (mb, 2);
9092
9093 /*
9094 * Might need to attach the thread to the JIT or change the
9095 * domain for the callback.
9096 */
9097 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9098 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
9099
9100 /* we first do all conversions */
9101 tmp_locals = alloca (sizeof (int) * sig->param_count);
9102 for (i = 0; i < sig->param_count; i ++) {
9103 MonoType *t = sig->params [i];
9104
9105 switch (t->type) {
9106 case MONO_TYPE_OBJECT:
9107 case MONO_TYPE_CLASS:
9108 case MONO_TYPE_VALUETYPE:
9109 case MONO_TYPE_ARRAY:
9110 case MONO_TYPE_SZARRAY:
9111 case MONO_TYPE_STRING:
9112 case MONO_TYPE_BOOLEAN:
9113 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
9114
9115 break;
9116 default:
9117 tmp_locals [i] = 0;
9118 break;
9119 }
9120 }
9121
9122 emit_thread_interrupt_checkpoint (mb);
9123
9124 if (sig->hasthis) {
9125 if (target_handle) {
9126 mono_mb_emit_icon (mb, (gint32)target_handle);
9127 mono_mb_emit_icall (mb, mono_gchandle_get_target);
9128 } else {
9129 /* fixme: */
9130 g_assert_not_reached ();
9131 }
9132 } else if (closed) {
9133 mono_mb_emit_icon (mb, (gint32)target_handle);
9134 mono_mb_emit_icall (mb, mono_gchandle_get_target);
9135 }
9136
9137 for (i = 0; i < sig->param_count; i++) {
9138 MonoType *t = sig->params [i];
9139
9140 if (tmp_locals [i]) {
9141 if (t->byref)
9142 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
9143 else
9144 mono_mb_emit_ldloc (mb, tmp_locals [i]);
9145 }
9146 else
9147 mono_mb_emit_ldarg (mb, i);
9148 }
9149
9150 mono_mb_emit_managed_call (mb, method, NULL);
9151
9152 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
9153 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
9154 } else if (!sig->ret->byref) {
9155 switch (sig->ret->type) {
9156 case MONO_TYPE_VOID:
9157 break;
9158 case MONO_TYPE_BOOLEAN:
9159 case MONO_TYPE_I1:
9160 case MONO_TYPE_U1:
9161 case MONO_TYPE_CHAR:
9162 case MONO_TYPE_I2:
9163 case MONO_TYPE_U2:
9164 case MONO_TYPE_I4:
9165 case MONO_TYPE_U4:
9166 case MONO_TYPE_I:
9167 case MONO_TYPE_U:
9168 case MONO_TYPE_PTR:
9169 case MONO_TYPE_R4:
9170 case MONO_TYPE_R8:
9171 case MONO_TYPE_I8:
9172 case MONO_TYPE_U8:
9173 case MONO_TYPE_OBJECT:
9174 mono_mb_emit_stloc (mb, 3);
9175 break;
9176 case MONO_TYPE_STRING:
9177 csig->ret = &mono_defaults.int_class->byval_arg;
9178 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
9179 break;
9180 case MONO_TYPE_VALUETYPE:
9181 case MONO_TYPE_CLASS:
9182 case MONO_TYPE_SZARRAY:
9183 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
9184 break;
9185 default:
9186 g_warning ("return type 0x%02x unknown", sig->ret->type);
9187 g_assert_not_reached ();
9188 }
9189 } else {
9190 mono_mb_emit_stloc (mb, 3);
9191 }
9192
9193 /* Convert byref arguments back */
9194 for (i = 0; i < sig->param_count; i ++) {
9195 MonoType *t = sig->params [i];
9196 MonoMarshalSpec *spec = mspecs [i + 1];
9197
9198 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
9199 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
9200 }
9201 else if (t->byref) {
9202 switch (t->type) {
9203 case MONO_TYPE_CLASS:
9204 case MONO_TYPE_VALUETYPE:
9205 case MONO_TYPE_OBJECT:
9206 case MONO_TYPE_STRING:
9207 case MONO_TYPE_BOOLEAN:
9208 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
9209 break;
9210 }
9211 }
9212 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
9213 /* The [Out] information is encoded in the delegate signature */
9214 switch (t->type) {
9215 case MONO_TYPE_SZARRAY:
9216 case MONO_TYPE_CLASS:
9217 case MONO_TYPE_VALUETYPE:
9218 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
9219 break;
9220 default:
9221 g_assert_not_reached ();
9222 }
9223 }
9224 }
9225
9226 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9227 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
9228
9229 if (m->retobj_var) {
9230 mono_mb_emit_ldloc (mb, m->retobj_var);
9231 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9232 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
9233 }
9234 else {
9235 if (!MONO_TYPE_IS_VOID(sig->ret))
9236 mono_mb_emit_ldloc (mb, 3);
9237 mono_mb_emit_byte (mb, CEE_RET);
9238 }
9239
9240 if (closed)
9241 g_free (sig);
9242 #endif
9243 }
9244
9245 static void
9246 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
9247 {
9248 MonoMethodSignature *sig;
9249 int i;
9250
9251 #ifdef TARGET_WIN32
9252 /*
9253 * Under windows, delegates passed to native code must use the STDCALL
9254 * calling convention.
9255 */
9256 csig->call_convention = MONO_CALL_STDCALL;
9257 #endif
9258
9259 sig = mono_method_signature (method);
9260
9261 /* Change default calling convention if needed */
9262 /* Why is this a modopt ? */
9263 if (sig->ret && sig->ret->num_mods) {
9264 for (i = 0; i < sig->ret->num_mods; ++i) {
9265 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
9266 g_assert (cmod_class);
9267 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
9268 if (!strcmp (cmod_class->name, "CallConvCdecl"))
9269 csig->call_convention = MONO_CALL_C;
9270 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
9271 csig->call_convention = MONO_CALL_STDCALL;
9272 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
9273 csig->call_convention = MONO_CALL_FASTCALL;
9274 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
9275 csig->call_convention = MONO_CALL_THISCALL;
9276 }
9277 }
9278 }
9279 }
9280
9281 /*
9282 * generates IL code to call managed methods from unmanaged code
9283 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
9284 */
9285 MonoMethod *
9286 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
9287 {
9288 static MonoClass *UnmanagedFunctionPointerAttribute;
9289 MonoMethodSignature *sig, *csig, *invoke_sig;
9290 MonoMethodBuilder *mb;
9291 MonoMethod *res, *invoke;
9292 MonoMarshalSpec **mspecs;
9293 MonoMethodPInvoke piinfo;
9294 GHashTable *cache;
9295 int i;
9296 EmitMarshalContext m;
9297
9298 g_assert (method != NULL);
9299 g_assert (!mono_method_signature (method)->pinvoke);
9300
9301 /*
9302 * FIXME: Should cache the method+delegate type pair, since the same method
9303 * could be called with different delegates, thus different marshalling
9304 * options.
9305 */
9306 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
9307 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
9308 return res;
9309
9310 invoke = mono_get_delegate_invoke (delegate_klass);
9311 invoke_sig = mono_method_signature (invoke);
9312
9313 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
9314 mono_method_get_marshal_info (invoke, mspecs);
9315
9316 sig = mono_method_signature (method);
9317
9318 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
9319
9320 /*the target gchandle must be the first entry after size and the wrapper itself.*/
9321 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
9322
9323 /* we copy the signature, so that we can modify it */
9324 if (target_handle)
9325 /* Need to free this later */
9326 csig = mono_metadata_signature_dup (invoke_sig);
9327 else
9328 csig = signature_dup (method->klass->image, invoke_sig);
9329 csig->hasthis = 0;
9330 csig->pinvoke = 1;
9331
9332 m.mb = mb;
9333 m.sig = sig;
9334 m.piinfo = NULL;
9335 m.retobj_var = 0;
9336 m.csig = csig;
9337 m.image = method->klass->image;
9338
9339 mono_marshal_set_callconv_from_modopt (invoke, csig);
9340
9341 /* Handle the UnmanagedFunctionPointerAttribute */
9342 if (!UnmanagedFunctionPointerAttribute)
9343 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
9344
9345 /* The attribute is only available in Net 2.0 */
9346 if (UnmanagedFunctionPointerAttribute) {
9347 MonoCustomAttrInfo *cinfo;
9348 MonoCustomAttrEntry *attr;
9349
9350 /*
9351 * The pinvoke attributes are stored in a real custom attribute. Obtain the
9352 * contents of the attribute without constructing it, as that might not be
9353 * possible when running in cross-compiling mode.
9354 */
9355 cinfo = mono_custom_attrs_from_class (delegate_klass);
9356 attr = NULL;
9357 if (cinfo) {
9358 for (i = 0; i < cinfo->num_attrs; ++i) {
9359 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
9360 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
9361 attr = &cinfo->attrs [i];
9362 break;
9363 }
9364 }
9365 }
9366 if (attr) {
9367 MonoArray *typed_args, *named_args;
9368 CattrNamedArg *arginfo;
9369 MonoObject *o;
9370 gint32 call_conv;
9371 gint32 charset = 0;
9372 MonoBoolean set_last_error = 0;
9373 MonoBoolean best_fit_mapping = 0;
9374 MonoBoolean throw_on_unmappable = 0;
9375
9376 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo);
9377
9378 g_assert (mono_array_length (typed_args) == 1);
9379
9380 /* typed args */
9381 o = mono_array_get (typed_args, MonoObject*, 0);
9382 call_conv = *(gint32*)mono_object_unbox (o);
9383
9384 /* named args */
9385 for (i = 0; i < mono_array_length (named_args); ++i) {
9386 CattrNamedArg *narg = &arginfo [i];
9387
9388 o = mono_array_get (named_args, MonoObject*, i);
9389
9390 g_assert (narg->field);
9391 if (!strcmp (narg->field->name, "CharSet")) {
9392 charset = *(gint32*)mono_object_unbox (o);
9393 } else if (!strcmp (narg->field->name, "SetLastError")) {
9394 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
9395 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
9396 best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
9397 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
9398 throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
9399 } else {
9400 g_assert_not_reached ();
9401 }
9402 }
9403
9404 g_free (arginfo);
9405
9406 memset (&piinfo, 0, sizeof (piinfo));
9407 m.piinfo = &piinfo;
9408 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
9409
9410 csig->call_convention = call_conv - 1;
9411 }
9412
9413 if (cinfo && !cinfo->cached)
9414 mono_custom_attrs_free (cinfo);
9415 }
9416
9417 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
9418
9419 if (!target_handle) {
9420 WrapperInfo *info;
9421
9422 res = mono_mb_create_and_cache (cache, method,
9423 mb, csig, sig->param_count + 16);
9424 // FIXME: Associate it with the method+delegate_klass pair
9425 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
9426 info->d.native_to_managed.method = method;
9427 info->d.native_to_managed.klass = delegate_klass;
9428 mono_marshal_set_wrapper_info (res, info);
9429 } else {
9430 #ifndef DISABLE_JIT
9431 mb->dynamic = 1;
9432 #endif
9433 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
9434 }
9435 mono_mb_free (mb);
9436
9437 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
9438 if (mspecs [i])
9439 mono_metadata_free_marshal_spec (mspecs [i]);
9440 g_free (mspecs);
9441
9442 /* code_for (res); */
9443
9444 return res;
9445 }
9446
9447 gpointer
9448 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
9449 {
9450 MonoMethod *method;
9451 MonoMethodSignature *sig;
9452 MonoMethodBuilder *mb;
9453 int i, param_count;
9454
9455 g_assert (token);
9456
9457 method = mono_get_method (image, token, NULL);
9458 g_assert (method);
9459
9460 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
9461 MonoMethodSignature *csig;
9462 MonoMarshalSpec **mspecs;
9463 EmitMarshalContext m;
9464
9465 sig = mono_method_signature (method);
9466 g_assert (!sig->hasthis);
9467
9468 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
9469 mono_method_get_marshal_info (method, mspecs);
9470
9471 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
9472 csig = signature_dup (image, sig);
9473 csig->hasthis = 0;
9474 csig->pinvoke = 1;
9475
9476 m.mb = mb;
9477 m.sig = sig;
9478 m.piinfo = NULL;
9479 m.retobj_var = 0;
9480 m.csig = csig;
9481 m.image = image;
9482
9483 mono_marshal_set_callconv_from_modopt (method, csig);
9484
9485 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
9486
9487 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
9488
9489 #ifndef DISABLE_JIT
9490 mb->dynamic = 1;
9491 #endif
9492 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
9493 mono_mb_free (mb);
9494
9495 for (i = sig->param_count; i >= 0; i--)
9496 if (mspecs [i])
9497 mono_metadata_free_marshal_spec (mspecs [i]);
9498 g_free (mspecs);
9499
9500 return mono_compile_method (method);
9501 }
9502
9503 sig = mono_method_signature (method);
9504 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9505
9506 #ifndef DISABLE_JIT
9507 param_count = sig->param_count + sig->hasthis;
9508 for (i = 0; i < param_count; i++)
9509 mono_mb_emit_ldarg (mb, i);
9510
9511 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
9512 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
9513 else
9514 mono_mb_emit_op (mb, CEE_CALL, method);
9515 mono_mb_emit_byte (mb, CEE_RET);
9516
9517 mb->dynamic = 1;
9518 #endif
9519
9520 method = mono_mb_create_method (mb, sig, param_count);
9521 mono_mb_free (mb);
9522
9523 return mono_compile_method (method);
9524 }
9525
9526 static MonoReflectionType *
9527 type_from_handle (MonoType *handle)
9528 {
9529 MonoDomain *domain = mono_domain_get ();
9530 MonoClass *klass = mono_class_from_mono_type (handle);
9531
9532 MONO_ARCH_SAVE_REGS;
9533
9534 mono_class_init (klass);
9535 return mono_type_get_object (domain, handle);
9536 }
9537
9538 /*
9539 * This does the equivalent of mono_object_castclass_with_cache.
9540 * The wrapper info for the wrapper is a WrapperInfo structure.
9541 */
9542 MonoMethod *
9543 mono_marshal_get_castclass_with_cache (void)
9544 {
9545 static MonoMethod *cached;
9546 MonoMethod *res;
9547 MonoMethodBuilder *mb;
9548 MonoMethodSignature *sig;
9549 int return_null_pos, cache_miss_pos, invalid_cast_pos;
9550 WrapperInfo *info;
9551
9552 if (cached)
9553 return cached;
9554
9555 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
9556 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9557 sig->params [0] = &mono_defaults.object_class->byval_arg;
9558 sig->params [1] = &mono_defaults.int_class->byval_arg;
9559 sig->params [2] = &mono_defaults.int_class->byval_arg;
9560 sig->ret = &mono_defaults.object_class->byval_arg;
9561 sig->pinvoke = 0;
9562
9563 #ifndef DISABLE_JIT
9564 /* allocate local 0 (pointer) obj_vtable */
9565 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9566
9567 /*if (!obj)*/
9568 mono_mb_emit_ldarg (mb, 0);
9569 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9570
9571 /*obj_vtable = obj->vtable;*/
9572 mono_mb_emit_ldarg (mb, 0);
9573 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9574 mono_mb_emit_byte (mb, CEE_LDIND_I);
9575 mono_mb_emit_stloc (mb, 0);
9576
9577 /* *cache */
9578 mono_mb_emit_ldarg (mb, 2);
9579 mono_mb_emit_byte (mb, CEE_LDIND_I);
9580 mono_mb_emit_ldloc (mb, 0);
9581
9582 /*if (*cache == obj_vtable)*/
9583 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9584
9585 /*return obj;*/
9586 mono_mb_emit_ldarg (mb, 0);
9587 mono_mb_emit_byte (mb, CEE_RET);
9588
9589 mono_mb_patch_branch (mb, cache_miss_pos);
9590 /*if (mono_object_isinst (obj, klass)) */
9591 mono_mb_emit_ldarg (mb, 0);
9592 mono_mb_emit_ldarg (mb, 1);
9593 mono_mb_emit_icall (mb, mono_object_isinst);
9594 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9595
9596 /**cache = obj_vtable;*/
9597 mono_mb_emit_ldarg (mb, 2);
9598 mono_mb_emit_ldloc (mb, 0);
9599 mono_mb_emit_byte (mb, CEE_STIND_I);
9600
9601 /*return obj;*/
9602 mono_mb_emit_ldarg (mb, 0);
9603 mono_mb_emit_byte (mb, CEE_RET);
9604
9605 /*fails*/
9606 mono_mb_patch_branch (mb, invalid_cast_pos);
9607 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9608
9609 /*return null*/
9610 mono_mb_patch_branch (mb, return_null_pos);
9611 mono_mb_emit_byte (mb, CEE_LDNULL);
9612 mono_mb_emit_byte (mb, CEE_RET);
9613 #endif /* DISABLE_JIT */
9614
9615 res = mono_mb_create_method (mb, sig, 8);
9616 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
9617 mono_marshal_set_wrapper_info (res, info);
9618 STORE_STORE_FENCE;
9619
9620 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9621 mono_free_method (res);
9622 mono_metadata_free_method_signature (sig);
9623 }
9624 mono_mb_free (mb);
9625
9626 return cached;
9627 }
9628
9629 /*
9630 * This does the equivalent of mono_object_isinst_with_cache.
9631 * The wrapper info for the wrapper is a WrapperInfo structure.
9632 */
9633 MonoMethod *
9634 mono_marshal_get_isinst_with_cache (void)
9635 {
9636 static MonoMethod *cached;
9637 MonoMethod *res;
9638 MonoMethodBuilder *mb;
9639 MonoMethodSignature *sig;
9640 int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos;
9641 WrapperInfo *info;
9642
9643 if (cached)
9644 return cached;
9645
9646 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
9647 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9648 sig->params [0] = &mono_defaults.object_class->byval_arg;
9649 sig->params [1] = &mono_defaults.int_class->byval_arg;
9650 sig->params [2] = &mono_defaults.int_class->byval_arg;
9651 sig->ret = &mono_defaults.object_class->byval_arg;
9652 sig->pinvoke = 0;
9653
9654 #ifndef DISABLE_JIT
9655 /* allocate local 0 (pointer) obj_vtable */
9656 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9657 /* allocate local 1 (pointer) cached_vtable */
9658 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9659
9660 /*if (!obj)*/
9661 mono_mb_emit_ldarg (mb, 0);
9662 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9663
9664 /*obj_vtable = obj->vtable;*/
9665 mono_mb_emit_ldarg (mb, 0);
9666 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9667 mono_mb_emit_byte (mb, CEE_LDIND_I);
9668 mono_mb_emit_stloc (mb, 0);
9669
9670 /* cached_vtable = *cache*/
9671 mono_mb_emit_ldarg (mb, 2);
9672 mono_mb_emit_byte (mb, CEE_LDIND_I);
9673 mono_mb_emit_stloc (mb, 1);
9674
9675 mono_mb_emit_ldloc (mb, 1);
9676 mono_mb_emit_byte (mb, CEE_LDC_I4);
9677 mono_mb_emit_i4 (mb, ~0x1);
9678 mono_mb_emit_byte (mb, CEE_CONV_U);
9679 mono_mb_emit_byte (mb, CEE_AND);
9680 mono_mb_emit_ldloc (mb, 0);
9681 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
9682 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9683
9684 /*return (cached_vtable & 0x1) ? NULL : obj;*/
9685 mono_mb_emit_ldloc (mb, 1);
9686 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9687 mono_mb_emit_byte (mb, CEE_CONV_U);
9688 mono_mb_emit_byte (mb, CEE_AND);
9689 negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
9690
9691 /*obj*/
9692 mono_mb_emit_ldarg (mb, 0);
9693 cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
9694
9695 /*NULL*/
9696 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9697 mono_mb_emit_byte (mb, CEE_LDNULL);
9698
9699 mono_mb_patch_branch (mb, cache_hit_pos);
9700 mono_mb_emit_byte (mb, CEE_RET);
9701
9702 mono_mb_patch_branch (mb, cache_miss_pos);
9703 /*if (mono_object_isinst (obj, klass)) */
9704 mono_mb_emit_ldarg (mb, 0);
9705 mono_mb_emit_ldarg (mb, 1);
9706 mono_mb_emit_icall (mb, mono_object_isinst);
9707 not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9708
9709 /**cache = obj_vtable;*/
9710 mono_mb_emit_ldarg (mb, 2);
9711 mono_mb_emit_ldloc (mb, 0);
9712 mono_mb_emit_byte (mb, CEE_STIND_I);
9713
9714 /*return obj;*/
9715 mono_mb_emit_ldarg (mb, 0);
9716 mono_mb_emit_byte (mb, CEE_RET);
9717
9718 /*not an instance*/
9719 mono_mb_patch_branch (mb, not_an_instance_pos);
9720 /* *cache = (gpointer)(obj_vtable | 0x1);*/
9721 mono_mb_emit_ldarg (mb, 2);
9722 /*obj_vtable | 0x1*/
9723 mono_mb_emit_ldloc (mb, 0);
9724 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9725 mono_mb_emit_byte (mb, CEE_CONV_U);
9726 mono_mb_emit_byte (mb, CEE_OR);
9727
9728 /* *cache = ... */
9729 mono_mb_emit_byte (mb, CEE_STIND_I);
9730
9731 /*return null*/
9732 mono_mb_patch_branch (mb, return_null_pos);
9733 mono_mb_emit_byte (mb, CEE_LDNULL);
9734 mono_mb_emit_byte (mb, CEE_RET);
9735 #endif
9736
9737 res = mono_mb_create_method (mb, sig, 8);
9738 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
9739 mono_marshal_set_wrapper_info (res, info);
9740 STORE_STORE_FENCE;
9741
9742 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9743 mono_free_method (res);
9744 mono_metadata_free_method_signature (sig);
9745 }
9746 mono_mb_free (mb);
9747
9748 return cached;
9749 }
9750
9751 /*
9752 * mono_marshal_get_isinst:
9753 * @klass: the type of the field
9754 *
9755 * This method generates a function which can be used to check if an object is
9756 * an instance of the given type, icluding the case where the object is a proxy.
9757 * The generated function has the following signature:
9758 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
9759 */
9760 MonoMethod *
9761 mono_marshal_get_isinst (MonoClass *klass)
9762 {
9763 static MonoMethodSignature *isint_sig = NULL;
9764 GHashTable *cache;
9765 MonoMethod *res;
9766 int pos_was_ok, pos_failed, pos_end, pos_end2;
9767 char *name;
9768 MonoMethodBuilder *mb;
9769
9770 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
9771 if ((res = mono_marshal_find_in_cache (cache, klass)))
9772 return res;
9773
9774 if (!isint_sig) {
9775 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9776 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9777 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9778 isint_sig->pinvoke = 0;
9779 }
9780
9781 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
9782 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
9783 g_free (name);
9784
9785 mb->method->save_lmf = 1;
9786
9787 #ifndef DISABLE_JIT
9788 /* check if the object is a proxy that needs special cast */
9789 mono_mb_emit_ldarg (mb, 0);
9790 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9791 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
9792
9793 /* The result of MONO_CISINST can be:
9794 0) the type check succeeded
9795 1) the type check did not succeed
9796 2) a CanCastTo call is needed */
9797 #ifndef DISABLE_REMOTING
9798 mono_mb_emit_byte (mb, CEE_DUP);
9799 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9800
9801 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
9802 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
9803
9804 /* get the real proxy from the transparent proxy*/
9805
9806 mono_mb_emit_ldarg (mb, 0);
9807 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9808 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9809
9810 /* fail */
9811
9812 mono_mb_patch_branch (mb, pos_failed);
9813 mono_mb_emit_byte (mb, CEE_LDNULL);
9814 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
9815
9816 /* success */
9817
9818 mono_mb_patch_branch (mb, pos_was_ok);
9819 mono_mb_emit_byte (mb, CEE_POP);
9820 mono_mb_emit_ldarg (mb, 0);
9821
9822 /* the end */
9823
9824 mono_mb_patch_branch (mb, pos_end);
9825 mono_mb_patch_branch (mb, pos_end2);
9826 mono_mb_emit_byte (mb, CEE_RET);
9827 #else
9828 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9829
9830 /* fail */
9831
9832 mono_mb_emit_byte (mb, CEE_LDNULL);
9833 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9834
9835 /* success */
9836
9837 mono_mb_patch_branch (mb, pos_was_ok);
9838 mono_mb_emit_ldarg (mb, 0);
9839
9840 /* the end */
9841
9842 mono_mb_patch_branch (mb, pos_end);
9843 mono_mb_emit_byte (mb, CEE_RET);
9844 #endif /* DISABLE_REMOTING */
9845 #endif /* DISABLE_JIT */
9846
9847 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9848 mono_mb_free (mb);
9849
9850 return res;
9851 }
9852
9853 /*
9854 * mono_marshal_get_castclass:
9855 * @klass: the type of the field
9856 *
9857 * This method generates a function which can be used to cast an object to
9858 * an instance of the given type, icluding the case where the object is a proxy.
9859 * The generated function has the following signature:
9860 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9861 * The wrapper info for the wrapper is a WrapperInfo structure.
9862 */
9863 MonoMethod *
9864 mono_marshal_get_castclass (MonoClass *klass)
9865 {
9866 static MonoMethodSignature *castclass_sig = NULL;
9867 GHashTable *cache;
9868 MonoMethod *res;
9869 int pos_was_ok, pos_was_ok2;
9870 char *name;
9871 MonoMethodBuilder *mb;
9872 WrapperInfo *info;
9873
9874 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9875 if ((res = mono_marshal_find_in_cache (cache, klass)))
9876 return res;
9877
9878 if (!castclass_sig) {
9879 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9880 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9881 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9882 castclass_sig->pinvoke = 0;
9883 }
9884
9885 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9886 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9887 g_free (name);
9888
9889 mb->method->save_lmf = 1;
9890
9891 #ifndef DISABLE_JIT
9892 /* check if the object is a proxy that needs special cast */
9893 mono_mb_emit_ldarg (mb, 0);
9894 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9895 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9896
9897 /* The result of MONO_CCASTCLASS can be:
9898 0) the cast is valid
9899 1) cast of unknown proxy type
9900 or an exception if the cast is is invalid
9901 */
9902 #ifndef DISABLE_REMOTING
9903 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9904
9905 /* get the real proxy from the transparent proxy*/
9906
9907 mono_mb_emit_ldarg (mb, 0);
9908 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9909 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9910
9911 /* fail */
9912 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9913
9914 /* success */
9915 mono_mb_patch_branch (mb, pos_was_ok);
9916 mono_mb_patch_branch (mb, pos_was_ok2);
9917 #else
9918 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
9919 mono_mb_emit_byte (mb, CEE_POP);
9920 #endif /* DISABLE_REMOTING */
9921
9922 mono_mb_emit_ldarg (mb, 0);
9923
9924 /* the end */
9925 mono_mb_emit_byte (mb, CEE_RET);
9926 #endif /* DISABLE_JIT */
9927
9928 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
9929 mono_mb_free (mb);
9930
9931 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
9932 mono_marshal_set_wrapper_info (res, info);
9933
9934 return res;
9935 }
9936
9937 #ifndef DISABLE_REMOTING
9938 MonoMethod *
9939 mono_marshal_get_proxy_cancast (MonoClass *klass)
9940 {
9941 static MonoMethodSignature *isint_sig = NULL;
9942 GHashTable *cache;
9943 MonoMethod *res;
9944 int pos_failed, pos_end;
9945 char *name, *klass_name;
9946 MonoMethod *can_cast_to;
9947 MonoMethodDesc *desc;
9948 MonoMethodBuilder *mb;
9949
9950 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
9951 if ((res = mono_marshal_find_in_cache (cache, klass)))
9952 return res;
9953
9954 if (!isint_sig) {
9955 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9956 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9957 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9958 isint_sig->pinvoke = 0;
9959 }
9960
9961 klass_name = mono_type_full_name (&klass->byval_arg);
9962 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass_name);
9963 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
9964 g_free (klass_name);
9965 g_free (name);
9966
9967 mb->method->save_lmf = 1;
9968
9969 #ifndef DISABLE_JIT
9970 /* get the real proxy from the transparent proxy*/
9971 mono_mb_emit_ldarg (mb, 0);
9972 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
9973 mono_mb_emit_byte (mb, CEE_LDIND_REF);
9974
9975 /* get the reflection type from the type handle */
9976 mono_mb_emit_ptr (mb, &klass->byval_arg);
9977 mono_mb_emit_icall (mb, type_from_handle);
9978
9979 mono_mb_emit_ldarg (mb, 0);
9980
9981 /* make the call to CanCastTo (type, ob) */
9982 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
9983 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
9984 g_assert (can_cast_to);
9985 mono_method_desc_free (desc);
9986 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
9987
9988 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
9989
9990 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
9991 mono_mb_emit_ptr (mb, &klass->byval_arg);
9992 mono_mb_emit_icall (mb, type_from_handle);
9993 mono_mb_emit_ldarg (mb, 0);
9994
9995 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
9996 emit_thread_interrupt_checkpoint (mb);
9997
9998 mono_mb_emit_ldarg (mb, 0);
9999 pos_end = mono_mb_emit_branch (mb, CEE_BR);
10000
10001 /* fail */
10002
10003 mono_mb_patch_branch (mb, pos_failed);
10004 mono_mb_emit_byte (mb, CEE_LDNULL);
10005
10006 /* the end */
10007
10008 mono_mb_patch_branch (mb, pos_end);
10009 mono_mb_emit_byte (mb, CEE_RET);
10010 #endif
10011
10012 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
10013 mono_mb_free (mb);
10014
10015 return res;
10016 }
10017
10018 void
10019 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
10020 {
10021 MonoClass *klass;
10022 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
10023 klass = mono_class_from_mono_type (rtype->type);
10024 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
10025 }
10026 #endif /*DISABLE_REMOTING */
10027
10028 /**
10029 * mono_marshal_get_struct_to_ptr:
10030 * @klass:
10031 *
10032 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
10033 * The wrapper info for the wrapper is a WrapperInfo structure.
10034 */
10035 MonoMethod *
10036 mono_marshal_get_struct_to_ptr (MonoClass *klass)
10037 {
10038 MonoMethodBuilder *mb;
10039 static MonoMethod *stoptr = NULL;
10040 MonoMethod *res;
10041 WrapperInfo *info;
10042
10043 g_assert (klass != NULL);
10044
10045 mono_marshal_load_type_info (klass);
10046
10047 if (klass->marshal_info->str_to_ptr)
10048 return klass->marshal_info->str_to_ptr;
10049
10050 if (!stoptr)
10051 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
10052 g_assert (stoptr);
10053
10054 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
10055
10056 #ifndef DISABLE_JIT
10057 if (klass->blittable) {
10058 mono_mb_emit_byte (mb, CEE_LDARG_1);
10059 mono_mb_emit_byte (mb, CEE_LDARG_0);
10060 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
10061 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
10062 mono_mb_emit_byte (mb, CEE_PREFIX1);
10063 mono_mb_emit_byte (mb, CEE_CPBLK);
10064 } else {
10065
10066 /* allocate local 0 (pointer) src_ptr */
10067 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10068 /* allocate local 1 (pointer) dst_ptr */
10069 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10070 /* allocate local 2 (boolean) delete_old */
10071 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
10072 mono_mb_emit_byte (mb, CEE_LDARG_2);
10073 mono_mb_emit_stloc (mb, 2);
10074
10075 /* initialize src_ptr to point to the start of object data */
10076 mono_mb_emit_byte (mb, CEE_LDARG_0);
10077 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
10078 mono_mb_emit_stloc (mb, 0);
10079
10080 /* initialize dst_ptr */
10081 mono_mb_emit_byte (mb, CEE_LDARG_1);
10082 mono_mb_emit_stloc (mb, 1);
10083
10084 emit_struct_conv (mb, klass, FALSE);
10085 }
10086
10087 mono_mb_emit_byte (mb, CEE_RET);
10088 #endif
10089
10090 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
10091 mono_mb_free (mb);
10092
10093 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
10094 mono_marshal_set_wrapper_info (res, info);
10095
10096 klass->marshal_info->str_to_ptr = res;
10097 return res;
10098 }
10099
10100 /**
10101 * mono_marshal_get_ptr_to_struct:
10102 * @klass:
10103 *
10104 * generates IL code for PtrToStructure (IntPtr src, object structure)
10105 * The wrapper info for the wrapper is a WrapperInfo structure.
10106 */
10107 MonoMethod *
10108 mono_marshal_get_ptr_to_struct (MonoClass *klass)
10109 {
10110 MonoMethodBuilder *mb;
10111 static MonoMethodSignature *ptostr = NULL;
10112 MonoMethod *res;
10113 WrapperInfo *info;
10114
10115 g_assert (klass != NULL);
10116
10117 mono_marshal_load_type_info (klass);
10118
10119 if (klass->marshal_info->ptr_to_str)
10120 return klass->marshal_info->ptr_to_str;
10121
10122 if (!ptostr) {
10123 MonoMethodSignature *sig;
10124
10125 /* Create the signature corresponding to
10126 static void PtrToStructure (IntPtr ptr, object structure);
10127 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
10128 sig = mono_create_icall_signature ("void ptr object");
10129 sig = signature_dup (mono_defaults.corlib, sig);
10130 sig->pinvoke = 0;
10131 mono_memory_barrier ();
10132 ptostr = sig;
10133 }
10134
10135 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
10136
10137 #ifndef DISABLE_JIT
10138 if (klass->blittable) {
10139 mono_mb_emit_byte (mb, CEE_LDARG_1);
10140 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
10141 mono_mb_emit_byte (mb, CEE_LDARG_0);
10142 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
10143 mono_mb_emit_byte (mb, CEE_PREFIX1);
10144 mono_mb_emit_byte (mb, CEE_CPBLK);
10145 } else {
10146
10147 /* allocate local 0 (pointer) src_ptr */
10148 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10149 /* allocate local 1 (pointer) dst_ptr */
10150 mono_mb_add_local (mb, &klass->this_arg);
10151
10152 /* initialize src_ptr to point to the start of object data */
10153 mono_mb_emit_byte (mb, CEE_LDARG_0);
10154 mono_mb_emit_stloc (mb, 0);
10155
10156 /* initialize dst_ptr */
10157 mono_mb_emit_byte (mb, CEE_LDARG_1);
10158 mono_mb_emit_op (mb, CEE_UNBOX, klass);
10159 mono_mb_emit_stloc (mb, 1);
10160
10161 emit_struct_conv (mb, klass, TRUE);
10162 }
10163
10164 mono_mb_emit_byte (mb, CEE_RET);
10165 #endif
10166
10167 res = mono_mb_create_method (mb, ptostr, 0);
10168 mono_mb_free (mb);
10169
10170 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
10171 mono_marshal_set_wrapper_info (res, info);
10172
10173 klass->marshal_info->ptr_to_str = res;
10174 return res;
10175 }
10176
10177 /*
10178 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
10179 * This is used to avoid infinite recursion since it is hard to determine where to
10180 * replace a method with its synchronized wrapper, and where not.
10181 * The runtime should execute METHOD instead of the wrapper.
10182 * The wrapper info for the wrapper is a WrapperInfo structure.
10183 */
10184 MonoMethod *
10185 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
10186 {
10187 MonoMethodBuilder *mb;
10188 WrapperInfo *info;
10189 MonoMethodSignature *sig;
10190 MonoMethod *res;
10191
10192 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10193 #ifndef DISABLE_JIT
10194 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
10195 mono_mb_emit_byte (mb, CEE_RET);
10196 #endif
10197 sig = signature_dup (method->klass->image, mono_method_signature (method));
10198 res = mono_mb_create_method (mb, sig, 0);
10199 mono_mb_free (mb);
10200 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
10201 info->d.synchronized_inner.method = method;
10202 mono_marshal_set_wrapper_info (res, info);
10203 return res;
10204 }
10205
10206 /*
10207 * generates IL code for the synchronized wrapper: the generated method
10208 * calls METHOD while locking 'this' or the parent type.
10209 */
10210 MonoMethod *
10211 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
10212 {
10213 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
10214 MonoMethodSignature *sig;
10215 MonoExceptionClause *clause;
10216 MonoMethodBuilder *mb;
10217 MonoMethod *res;
10218 GHashTable *cache;
10219 int i, pos, this_local, ret_local = 0;
10220
10221 g_assert (method);
10222
10223 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
10224 return method;
10225
10226 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
10227 if ((res = mono_marshal_find_in_cache (cache, method)))
10228 return res;
10229
10230 sig = signature_dup (method->klass->image, mono_method_signature (method));
10231 sig->pinvoke = 0;
10232
10233 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
10234
10235 #ifndef DISABLE_JIT
10236 /* result */
10237 if (!MONO_TYPE_IS_VOID (sig->ret))
10238 ret_local = mono_mb_add_local (mb, sig->ret);
10239 #endif
10240
10241 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
10242 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
10243 #ifndef DISABLE_JIT
10244 /* This will throw the type load exception when the wrapper is compiled */
10245 mono_mb_emit_byte (mb, CEE_LDNULL);
10246 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
10247 mono_mb_emit_byte (mb, CEE_POP);
10248
10249 if (!MONO_TYPE_IS_VOID (sig->ret))
10250 mono_mb_emit_ldloc (mb, ret_local);
10251 mono_mb_emit_byte (mb, CEE_RET);
10252 #endif
10253
10254 res = mono_mb_create_and_cache (cache, method,
10255 mb, sig, sig->param_count + 16);
10256 mono_mb_free (mb);
10257
10258 return res;
10259 }
10260
10261 #ifndef DISABLE_JIT
10262 /* this */
10263 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
10264
10265 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
10266 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
10267 #endif
10268
10269 mono_loader_lock ();
10270
10271 if (!enter_method) {
10272 MonoMethodDesc *desc;
10273
10274 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
10275 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
10276 g_assert (enter_method);
10277 mono_method_desc_free (desc);
10278
10279 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
10280 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
10281 g_assert (exit_method);
10282 mono_method_desc_free (desc);
10283
10284 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
10285 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
10286 g_assert (gettypefromhandle_method);
10287 mono_method_desc_free (desc);
10288 }
10289
10290 mono_loader_unlock ();
10291
10292 #ifndef DISABLE_JIT
10293 /* Push this or the type object */
10294 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
10295 /* We have special handling for this in the JIT */
10296 int index = mono_mb_add_data (mb, method->klass);
10297 mono_mb_add_data (mb, mono_defaults.typehandle_class);
10298 mono_mb_emit_byte (mb, CEE_LDTOKEN);
10299 mono_mb_emit_i4 (mb, index);
10300
10301 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
10302 }
10303 else
10304 mono_mb_emit_ldarg (mb, 0);
10305 mono_mb_emit_stloc (mb, this_local);
10306
10307 /* Call Monitor::Enter() */
10308 mono_mb_emit_ldloc (mb, this_local);
10309 mono_mb_emit_managed_call (mb, enter_method, NULL);
10310
10311 clause->try_offset = mono_mb_get_label (mb);
10312
10313 /* Call the method */
10314 if (sig->hasthis)
10315 mono_mb_emit_ldarg (mb, 0);
10316 for (i = 0; i < sig->param_count; i++)
10317 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10318
10319 mono_mb_emit_managed_call (mb, method, NULL);
10320
10321 if (!MONO_TYPE_IS_VOID (sig->ret))
10322 mono_mb_emit_stloc (mb, ret_local);
10323
10324 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
10325
10326 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
10327 clause->handler_offset = mono_mb_get_label (mb);
10328
10329 /* Call Monitor::Exit() */
10330 mono_mb_emit_ldloc (mb, this_local);
10331 mono_mb_emit_managed_call (mb, exit_method, NULL);
10332 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
10333
10334 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
10335
10336 mono_mb_patch_branch (mb, pos);
10337 if (!MONO_TYPE_IS_VOID (sig->ret))
10338 mono_mb_emit_ldloc (mb, ret_local);
10339 mono_mb_emit_byte (mb, CEE_RET);
10340
10341 mono_mb_set_clauses (mb, 1, clause);
10342 #endif
10343
10344 res = mono_mb_create_and_cache (cache, method,
10345 mb, sig, sig->param_count + 16);
10346 mono_mb_free (mb);
10347
10348 return res;
10349 }
10350
10351
10352 /*
10353 * the returned method calls 'method' unboxing the this argument
10354 */
10355 MonoMethod *
10356 mono_marshal_get_unbox_wrapper (MonoMethod *method)
10357 {
10358 MonoMethodSignature *sig = mono_method_signature (method);
10359 int i;
10360 MonoMethodBuilder *mb;
10361 MonoMethod *res;
10362 GHashTable *cache;
10363
10364 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
10365 if ((res = mono_marshal_find_in_cache (cache, method)))
10366 return res;
10367
10368 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
10369
10370 g_assert (sig->hasthis);
10371
10372 #ifndef DISABLE_JIT
10373 mono_mb_emit_ldarg (mb, 0);
10374 mono_mb_emit_icon (mb, sizeof (MonoObject));
10375 mono_mb_emit_byte (mb, CEE_ADD);
10376 for (i = 0; i < sig->param_count; ++i)
10377 mono_mb_emit_ldarg (mb, i + 1);
10378 mono_mb_emit_managed_call (mb, method, NULL);
10379 mono_mb_emit_byte (mb, CEE_RET);
10380 #endif
10381
10382 res = mono_mb_create_and_cache (cache, method,
10383 mb, sig, sig->param_count + 16);
10384 mono_mb_free (mb);
10385
10386 /* code_for (res); */
10387
10388 return res;
10389 }
10390
10391 enum {
10392 STELEMREF_OBJECT, /*no check at all*/
10393 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
10394 STELEMREF_CLASS, /*only the klass->parents check*/
10395 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
10396 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
10397 STELEMREF_KIND_COUNT
10398 };
10399
10400 static const char *strelemref_wrapper_name[] = {
10401 "object", "sealed_class", "class", "interface", "complex"
10402 };
10403
10404 static gboolean
10405 is_monomorphic_array (MonoClass *klass)
10406 {
10407 MonoClass *element_class;
10408 if (klass->rank != 1)
10409 return FALSE;
10410
10411 element_class = klass->element_class;
10412 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
10413 }
10414
10415 static int
10416 get_virtual_stelemref_kind (MonoClass *element_class)
10417 {
10418 if (element_class == mono_defaults.object_class)
10419 return STELEMREF_OBJECT;
10420 if (is_monomorphic_array (element_class))
10421 return STELEMREF_SEALED_CLASS;
10422 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
10423 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
10424 #ifdef COMPRESSED_INTERFACE_BITMAP
10425 return STELEMREF_COMPLEX;
10426 #else
10427 return STELEMREF_INTERFACE;
10428 #endif
10429 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
10430 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
10431 return STELEMREF_COMPLEX;
10432 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
10433 return STELEMREF_SEALED_CLASS;
10434 return STELEMREF_CLASS;
10435 }
10436
10437 #ifndef DISABLE_JIT
10438
10439 static void
10440 load_array_element_address (MonoMethodBuilder *mb)
10441 {
10442 mono_mb_emit_ldarg (mb, 0);
10443 mono_mb_emit_ldarg (mb, 1);
10444 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10445 }
10446
10447 static void
10448 load_array_class (MonoMethodBuilder *mb, int aklass)
10449 {
10450 mono_mb_emit_ldarg (mb, 0);
10451 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10452 mono_mb_emit_byte (mb, CEE_LDIND_I);
10453 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10454 mono_mb_emit_byte (mb, CEE_LDIND_I);
10455 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
10456 mono_mb_emit_byte (mb, CEE_LDIND_I);
10457 mono_mb_emit_stloc (mb, aklass);
10458 }
10459
10460 static void
10461 load_value_class (MonoMethodBuilder *mb, int vklass)
10462 {
10463 mono_mb_emit_ldarg (mb, 2);
10464 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10465 mono_mb_emit_byte (mb, CEE_LDIND_I);
10466 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10467 mono_mb_emit_byte (mb, CEE_LDIND_I);
10468 mono_mb_emit_stloc (mb, vklass);
10469 }
10470 #endif
10471
10472 #if 0
10473 static void
10474 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
10475 {
10476 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
10477 printf ("slow vstore of %s\n", name);
10478 g_free (name);
10479 }
10480 #endif
10481
10482 /*
10483 * The wrapper info for the wrapper is a WrapperInfo structure.
10484 *
10485 * TODO:
10486 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
10487 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
10488 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
10489 * - Add a case for arrays of arrays.
10490 */
10491 static MonoMethod*
10492 get_virtual_stelemref_wrapper (int kind)
10493 {
10494 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
10495 static MonoMethodSignature *signature;
10496 MonoMethodBuilder *mb;
10497 MonoMethod *res;
10498 char *name;
10499 const char *param_names [16];
10500 guint32 b1, b2, b3;
10501 int aklass, vklass, vtable, uiid;
10502 int array_slot_addr;
10503 WrapperInfo *info;
10504
10505 if (cached_methods [kind])
10506 return cached_methods [kind];
10507
10508 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
10509 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
10510 g_free (name);
10511
10512 if (!signature) {
10513 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
10514
10515 /* void this::stelemref (size_t idx, void* value) */
10516 sig->ret = &mono_defaults.void_class->byval_arg;
10517 sig->hasthis = TRUE;
10518 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10519 sig->params [1] = &mono_defaults.object_class->byval_arg;
10520 signature = sig;
10521 }
10522
10523 #ifndef DISABLE_JIT
10524 param_names [0] = "index";
10525 param_names [1] = "value";
10526 mono_mb_set_param_names (mb, param_names);
10527
10528 /*For now simply call plain old stelemref*/
10529 switch (kind) {
10530 case STELEMREF_OBJECT:
10531 /* ldelema (implicit bound check) */
10532 load_array_element_address (mb);
10533 /* do_store */
10534 mono_mb_emit_ldarg (mb, 2);
10535 mono_mb_emit_byte (mb, CEE_STIND_REF);
10536 mono_mb_emit_byte (mb, CEE_RET);
10537 break;
10538
10539 case STELEMREF_COMPLEX:
10540 /*
10541 <ldelema (bound check)>
10542 if (!value)
10543 goto store;
10544 if (!mono_object_isinst (value, aklass))
10545 goto do_exception;
10546
10547 do_store:
10548 *array_slot_addr = value;
10549
10550 do_exception:
10551 throw new ArrayTypeMismatchException ();
10552 */
10553
10554 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10555 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10556
10557 #if 0
10558 {
10559 /*Use this to debug/record stores that are going thru the slow path*/
10560 MonoMethodSignature *csig;
10561 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10562 csig->ret = &mono_defaults.void_class->byval_arg;
10563 csig->params [0] = &mono_defaults.object_class->byval_arg;
10564 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10565 csig->params [2] = &mono_defaults.object_class->byval_arg;
10566 mono_mb_emit_ldarg (mb, 0);
10567 mono_mb_emit_ldarg (mb, 1);
10568 mono_mb_emit_ldarg (mb, 2);
10569 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
10570 }
10571 #endif
10572
10573 /* ldelema (implicit bound check) */
10574 load_array_element_address (mb);
10575 mono_mb_emit_stloc (mb, array_slot_addr);
10576
10577 /* if (!value) goto do_store */
10578 mono_mb_emit_ldarg (mb, 2);
10579 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10580
10581 /* aklass = array->vtable->klass->element_class */
10582 load_array_class (mb, aklass);
10583
10584 /*if (mono_object_isinst (value, aklass)) */
10585 mono_mb_emit_ldarg (mb, 2);
10586 mono_mb_emit_ldloc (mb, aklass);
10587 mono_mb_emit_icall (mb, mono_object_isinst);
10588 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10589
10590 /* do_store: */
10591 mono_mb_patch_branch (mb, b1);
10592 mono_mb_emit_ldloc (mb, array_slot_addr);
10593 mono_mb_emit_ldarg (mb, 2);
10594 mono_mb_emit_byte (mb, CEE_STIND_REF);
10595 mono_mb_emit_byte (mb, CEE_RET);
10596
10597 /* do_exception: */
10598 mono_mb_patch_branch (mb, b2);
10599
10600 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10601 break;
10602
10603 case STELEMREF_SEALED_CLASS:
10604 /*
10605 <ldelema (bound check)>
10606 if (!value)
10607 goto store;
10608
10609 aklass = array->vtable->klass->element_class;
10610 vklass = value->vtable->klass;
10611
10612 if (vklass != aklass)
10613 goto do_exception;
10614
10615 do_store:
10616 *array_slot_addr = value;
10617
10618 do_exception:
10619 throw new ArrayTypeMismatchException ();
10620 */
10621 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10622 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10623 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10624
10625
10626 /* ldelema (implicit bound check) */
10627 load_array_element_address (mb);
10628 mono_mb_emit_stloc (mb, array_slot_addr);
10629
10630 /* if (!value) goto do_store */
10631 mono_mb_emit_ldarg (mb, 2);
10632 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10633
10634 /* aklass = array->vtable->klass->element_class */
10635 load_array_class (mb, aklass);
10636
10637 /* vklass = value->vtable->klass */
10638 load_value_class (mb, vklass);
10639
10640 /*if (vklass != aklass) goto do_exception; */
10641 mono_mb_emit_ldloc (mb, aklass);
10642 mono_mb_emit_ldloc (mb, vklass);
10643 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10644
10645 /* do_store: */
10646 mono_mb_patch_branch (mb, b1);
10647 mono_mb_emit_ldloc (mb, array_slot_addr);
10648 mono_mb_emit_ldarg (mb, 2);
10649 mono_mb_emit_byte (mb, CEE_STIND_REF);
10650 mono_mb_emit_byte (mb, CEE_RET);
10651
10652 /* do_exception: */
10653 mono_mb_patch_branch (mb, b2);
10654 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10655 break;
10656
10657 case STELEMREF_CLASS:
10658 /*
10659 the method:
10660 <ldelema (bound check)>
10661 if (!value)
10662 goto do_store;
10663
10664 aklass = array->vtable->klass->element_class;
10665 vklass = value->vtable->klass;
10666
10667 if (vklass->idepth < aklass->idepth)
10668 goto do_exception;
10669
10670 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10671 goto do_exception;
10672
10673 do_store:
10674 *array_slot_addr = value;
10675 return;
10676
10677 long:
10678 throw new ArrayTypeMismatchException ();
10679 */
10680 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10681 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10682 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10683
10684 /* ldelema (implicit bound check) */
10685 load_array_element_address (mb);
10686 mono_mb_emit_stloc (mb, array_slot_addr);
10687
10688 /* if (!value) goto do_store */
10689 mono_mb_emit_ldarg (mb, 2);
10690 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10691
10692 /* aklass = array->vtable->klass->element_class */
10693 load_array_class (mb, aklass);
10694
10695 /* vklass = value->vtable->klass */
10696 load_value_class (mb, vklass);
10697
10698 /*if (mono_object_isinst (value, aklass)) */
10699 mono_mb_emit_ldarg (mb, 2);
10700 mono_mb_emit_ldloc (mb, aklass);
10701 mono_mb_emit_icall (mb, mono_object_isinst);
10702 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10703
10704 /* if (vklass->idepth < aklass->idepth) goto failue */
10705 mono_mb_emit_ldloc (mb, vklass);
10706 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10707 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10708
10709 mono_mb_emit_ldloc (mb, aklass);
10710 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10711 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10712
10713 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10714
10715 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10716 mono_mb_emit_ldloc (mb, vklass);
10717 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10718 mono_mb_emit_byte (mb, CEE_LDIND_I);
10719
10720 mono_mb_emit_ldloc (mb, aklass);
10721 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10722 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10723 mono_mb_emit_icon (mb, 1);
10724 mono_mb_emit_byte (mb, CEE_SUB);
10725 mono_mb_emit_icon (mb, sizeof (void*));
10726 mono_mb_emit_byte (mb, CEE_MUL);
10727 mono_mb_emit_byte (mb, CEE_ADD);
10728 mono_mb_emit_byte (mb, CEE_LDIND_I);
10729
10730 mono_mb_emit_ldloc (mb, aklass);
10731 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10732
10733 /* do_store: */
10734 mono_mb_patch_branch (mb, b1);
10735 mono_mb_emit_ldloc (mb, array_slot_addr);
10736 mono_mb_emit_ldarg (mb, 2);
10737 mono_mb_emit_byte (mb, CEE_STIND_REF);
10738 mono_mb_emit_byte (mb, CEE_RET);
10739
10740 /* do_exception: */
10741 mono_mb_patch_branch (mb, b2);
10742 mono_mb_patch_branch (mb, b3);
10743
10744 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10745 break;
10746
10747 case STELEMREF_INTERFACE:
10748 /*Mono *klass;
10749 MonoVTable *vt;
10750 unsigned uiid;
10751 if (value == NULL)
10752 goto store;
10753
10754 klass = array->obj.vtable->klass->element_class;
10755 vt = value->vtable;
10756 uiid = klass->interface_id;
10757 if (uiid > vt->max_interface_id)
10758 goto exception;
10759 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
10760 goto exception;
10761 store:
10762 mono_array_setref (array, index, value);
10763 return;
10764 exception:
10765 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
10766
10767 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10768 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10769 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10770 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10771
10772 /* ldelema (implicit bound check) */
10773 load_array_element_address (mb);
10774 mono_mb_emit_stloc (mb, array_slot_addr);
10775
10776 /* if (!value) goto do_store */
10777 mono_mb_emit_ldarg (mb, 2);
10778 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10779
10780 /* klass = array->vtable->klass->element_class */
10781 load_array_class (mb, aklass);
10782
10783 /* vt = value->vtable */
10784 mono_mb_emit_ldarg (mb, 2);
10785 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10786 mono_mb_emit_byte (mb, CEE_LDIND_I);
10787 mono_mb_emit_stloc (mb, vtable);
10788
10789 /* uiid = klass->interface_id; */
10790 mono_mb_emit_ldloc (mb, aklass);
10791 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, interface_id));
10792 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10793 mono_mb_emit_stloc (mb, uiid);
10794
10795 /*if (uiid > vt->max_interface_id)*/
10796 mono_mb_emit_ldloc (mb, uiid);
10797 mono_mb_emit_ldloc (mb, vtable);
10798 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, max_interface_id));
10799 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10800 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
10801
10802 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
10803
10804 /*vt->interface_bitmap*/
10805 mono_mb_emit_ldloc (mb, vtable);
10806 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, interface_bitmap));
10807 mono_mb_emit_byte (mb, CEE_LDIND_I);
10808
10809 /*uiid >> 3*/
10810 mono_mb_emit_ldloc (mb, uiid);
10811 mono_mb_emit_icon (mb, 3);
10812 mono_mb_emit_byte (mb, CEE_SHR_UN);
10813
10814 /*vt->interface_bitmap [(uiid) >> 3]*/
10815 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
10816 mono_mb_emit_byte (mb, CEE_LDIND_U1);
10817
10818 /*(1 << ((uiid)&7)))*/
10819 mono_mb_emit_icon (mb, 1);
10820 mono_mb_emit_ldloc (mb, uiid);
10821 mono_mb_emit_icon (mb, 7);
10822 mono_mb_emit_byte (mb, CEE_AND);
10823 mono_mb_emit_byte (mb, CEE_SHL);
10824
10825 /*bitwise and the whole thing*/
10826 mono_mb_emit_byte (mb, CEE_AND);
10827 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10828
10829 /* do_store: */
10830 mono_mb_patch_branch (mb, b1);
10831 mono_mb_emit_ldloc (mb, array_slot_addr);
10832 mono_mb_emit_ldarg (mb, 2);
10833 mono_mb_emit_byte (mb, CEE_STIND_REF);
10834 mono_mb_emit_byte (mb, CEE_RET);
10835
10836 /* do_exception: */
10837 mono_mb_patch_branch (mb, b2);
10838 mono_mb_patch_branch (mb, b3);
10839 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10840 break;
10841
10842 default:
10843 mono_mb_emit_ldarg (mb, 0);
10844 mono_mb_emit_ldarg (mb, 1);
10845 mono_mb_emit_ldarg (mb, 2);
10846 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10847 mono_mb_emit_byte (mb, CEE_RET);
10848 g_assert (0);
10849 }
10850 #endif /* DISABLE_JIT */
10851
10852 res = mono_mb_create_method (mb, signature, 4);
10853 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10854
10855 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
10856 info->d.virtual_stelemref.kind = kind;
10857 mono_marshal_set_wrapper_info (res, info);
10858
10859 mono_marshal_lock ();
10860 if (!cached_methods [kind]) {
10861 cached_methods [kind] = res;
10862 mono_marshal_unlock ();
10863 } else {
10864 mono_marshal_unlock ();
10865 mono_free_method (res);
10866 }
10867
10868 mono_mb_free (mb);
10869 return cached_methods [kind];
10870 }
10871
10872 MonoMethod*
10873 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10874 {
10875 int kind;
10876
10877 g_assert (array_class->rank == 1);
10878 kind = get_virtual_stelemref_kind (array_class->element_class);
10879
10880 return get_virtual_stelemref_wrapper (kind);
10881 }
10882
10883 MonoMethod**
10884 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
10885 {
10886 MonoMethod **res;
10887 int i;
10888
10889 *nwrappers = STELEMREF_KIND_COUNT;
10890 res = g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
10891 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
10892 res [i] = get_virtual_stelemref_wrapper (i);
10893 return res;
10894 }
10895
10896 /*
10897 * The wrapper info for the wrapper is a WrapperInfo structure.
10898 */
10899 MonoMethod*
10900 mono_marshal_get_stelemref ()
10901 {
10902 static MonoMethod* ret = NULL;
10903 MonoMethodSignature *sig;
10904 MonoMethodBuilder *mb;
10905 WrapperInfo *info;
10906
10907 guint32 b1, b2, b3, b4;
10908 guint32 copy_pos;
10909 int aklass, vklass;
10910 int array_slot_addr;
10911
10912 if (ret)
10913 return ret;
10914
10915 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10916
10917
10918 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10919
10920 /* void stelemref (void* array, int idx, void* value) */
10921 sig->ret = &mono_defaults.void_class->byval_arg;
10922 sig->params [0] = &mono_defaults.object_class->byval_arg;
10923 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10924 sig->params [2] = &mono_defaults.object_class->byval_arg;
10925
10926 #ifndef DISABLE_JIT
10927 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10928 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10929 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10930
10931 /*
10932 the method:
10933 <ldelema (bound check)>
10934 if (!value)
10935 goto store;
10936
10937 aklass = array->vtable->klass->element_class;
10938 vklass = value->vtable->klass;
10939
10940 if (vklass->idepth < aklass->idepth)
10941 goto long;
10942
10943 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10944 goto long;
10945
10946 store:
10947 *array_slot_addr = value;
10948 return;
10949
10950 long:
10951 if (mono_object_isinst (value, aklass))
10952 goto store;
10953
10954 throw new ArrayTypeMismatchException ();
10955 */
10956
10957 /* ldelema (implicit bound check) */
10958 mono_mb_emit_ldarg (mb, 0);
10959 mono_mb_emit_ldarg (mb, 1);
10960 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10961 mono_mb_emit_stloc (mb, array_slot_addr);
10962
10963 /* if (!value) goto do_store */
10964 mono_mb_emit_ldarg (mb, 2);
10965 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10966
10967 /* aklass = array->vtable->klass->element_class */
10968 mono_mb_emit_ldarg (mb, 0);
10969 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10970 mono_mb_emit_byte (mb, CEE_LDIND_I);
10971 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10972 mono_mb_emit_byte (mb, CEE_LDIND_I);
10973 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
10974 mono_mb_emit_byte (mb, CEE_LDIND_I);
10975 mono_mb_emit_stloc (mb, aklass);
10976
10977 /* vklass = value->vtable->klass */
10978 mono_mb_emit_ldarg (mb, 2);
10979 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10980 mono_mb_emit_byte (mb, CEE_LDIND_I);
10981 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10982 mono_mb_emit_byte (mb, CEE_LDIND_I);
10983 mono_mb_emit_stloc (mb, vklass);
10984
10985 /* if (vklass->idepth < aklass->idepth) goto failue */
10986 mono_mb_emit_ldloc (mb, vklass);
10987 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10988 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10989
10990 mono_mb_emit_ldloc (mb, aklass);
10991 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10992 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10993
10994 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10995
10996 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10997 mono_mb_emit_ldloc (mb, vklass);
10998 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10999 mono_mb_emit_byte (mb, CEE_LDIND_I);
11000
11001 mono_mb_emit_ldloc (mb, aklass);
11002 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
11003 mono_mb_emit_byte (mb, CEE_LDIND_U2);
11004 mono_mb_emit_icon (mb, 1);
11005 mono_mb_emit_byte (mb, CEE_SUB);
11006 mono_mb_emit_icon (mb, sizeof (void*));
11007 mono_mb_emit_byte (mb, CEE_MUL);
11008 mono_mb_emit_byte (mb, CEE_ADD);
11009 mono_mb_emit_byte (mb, CEE_LDIND_I);
11010
11011 mono_mb_emit_ldloc (mb, aklass);
11012
11013 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
11014
11015 copy_pos = mono_mb_get_label (mb);
11016 /* do_store */
11017 mono_mb_patch_branch (mb, b1);
11018 mono_mb_emit_ldloc (mb, array_slot_addr);
11019 mono_mb_emit_ldarg (mb, 2);
11020 mono_mb_emit_byte (mb, CEE_STIND_REF);
11021
11022 mono_mb_emit_byte (mb, CEE_RET);
11023
11024 /* the hard way */
11025 mono_mb_patch_branch (mb, b2);
11026 mono_mb_patch_branch (mb, b3);
11027
11028 mono_mb_emit_ldarg (mb, 2);
11029 mono_mb_emit_ldloc (mb, aklass);
11030 mono_mb_emit_icall (mb, mono_object_isinst);
11031
11032 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
11033 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
11034 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
11035
11036 mono_mb_emit_byte (mb, CEE_RET);
11037 #endif
11038
11039 ret = mono_mb_create_method (mb, sig, 4);
11040 mono_mb_free (mb);
11041
11042 info = mono_wrapper_info_create (ret, WRAPPER_SUBTYPE_NONE);
11043 mono_marshal_set_wrapper_info (ret, info);
11044
11045 return ret;
11046 }
11047
11048 /*
11049 * mono_marshal_get_gsharedvt_in_wrapper:
11050 *
11051 * This wrapper handles calls from normal code to gsharedvt code.
11052 *
11053 * The wrapper info for the wrapper is a WrapperInfo structure.
11054 */
11055 MonoMethod*
11056 mono_marshal_get_gsharedvt_in_wrapper (void)
11057 {
11058 static MonoMethod* ret = NULL;
11059 MonoMethodSignature *sig;
11060 MonoMethodBuilder *mb;
11061 WrapperInfo *info;
11062
11063 if (ret)
11064 return ret;
11065
11066 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
11067
11068 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
11069 sig->ret = &mono_defaults.void_class->byval_arg;
11070
11071 #ifndef DISABLE_JIT
11072 /*
11073 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
11074 */
11075 mono_mb_emit_byte (mb, CEE_RET);
11076 #endif
11077
11078 ret = mono_mb_create_method (mb, sig, 4);
11079 mono_mb_free (mb);
11080
11081 info = mono_wrapper_info_create (ret, WRAPPER_SUBTYPE_GSHAREDVT_IN);
11082 mono_marshal_set_wrapper_info (ret, info);
11083
11084 return ret;
11085 }
11086
11087 /*
11088 * mono_marshal_get_gsharedvt_out_wrapper:
11089 *
11090 * This wrapper handles calls from gsharedvt code to normal code.
11091 *
11092 * The wrapper info for the wrapper is a WrapperInfo structure.
11093 */
11094 MonoMethod*
11095 mono_marshal_get_gsharedvt_out_wrapper (void)
11096 {
11097 static MonoMethod* ret = NULL;
11098 MonoMethodSignature *sig;
11099 MonoMethodBuilder *mb;
11100 WrapperInfo *info;
11101
11102 if (ret)
11103 return ret;
11104
11105 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
11106
11107 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
11108 sig->ret = &mono_defaults.void_class->byval_arg;
11109
11110 #ifndef DISABLE_JIT
11111 /*
11112 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
11113 */
11114 mono_mb_emit_byte (mb, CEE_RET);
11115 #endif
11116
11117 ret = mono_mb_create_method (mb, sig, 4);
11118 mono_mb_free (mb);
11119
11120 info = mono_wrapper_info_create (ret, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
11121 mono_marshal_set_wrapper_info (ret, info);
11122
11123 return ret;
11124 }
11125
11126 typedef struct {
11127 int rank;
11128 int elem_size;
11129 MonoMethod *method;
11130 } ArrayElemAddr;
11131
11132 /* LOCKING: vars accessed under the marshal lock */
11133 static ArrayElemAddr *elem_addr_cache = NULL;
11134 static int elem_addr_cache_size = 0;
11135 static int elem_addr_cache_next = 0;
11136
11137 /**
11138 * mono_marshal_get_array_address:
11139 * @rank: rank of the array type
11140 * @elem_size: size in bytes of an element of an array.
11141 *
11142 * Returns a MonoMethd that implements the code to get the address
11143 * of an element in a multi-dimenasional array of @rank dimensions.
11144 * The returned method takes an array as the first argument and then
11145 * @rank indexes for the @rank dimensions.
11146 */
11147 MonoMethod*
11148 mono_marshal_get_array_address (int rank, int elem_size)
11149 {
11150 MonoMethod *ret;
11151 MonoMethodBuilder *mb;
11152 MonoMethodSignature *sig;
11153 int i, bounds, ind, realidx;
11154 int branch_pos, *branch_positions;
11155 int cached;
11156
11157 ret = NULL;
11158 mono_marshal_lock ();
11159 for (i = 0; i < elem_addr_cache_next; ++i) {
11160 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
11161 ret = elem_addr_cache [i].method;
11162 break;
11163 }
11164 }
11165 mono_marshal_unlock ();
11166 if (ret)
11167 return ret;
11168
11169 branch_positions = g_new0 (int, rank);
11170
11171 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
11172
11173 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
11174 sig->ret = &mono_defaults.int_class->byval_arg;
11175 sig->params [0] = &mono_defaults.object_class->byval_arg;
11176 for (i = 0; i < rank; ++i) {
11177 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
11178 }
11179
11180 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
11181
11182 #ifndef DISABLE_JIT
11183 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11184 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
11185 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
11186
11187 /* bounds = array->bounds; */
11188 mono_mb_emit_ldarg (mb, 0);
11189 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
11190 mono_mb_emit_byte (mb, CEE_LDIND_I);
11191 mono_mb_emit_stloc (mb, bounds);
11192
11193 /* ind is the overall element index, realidx is the partial index in a single dimension */
11194 /* ind = idx0 - bounds [0].lower_bound */
11195 mono_mb_emit_ldarg (mb, 1);
11196 mono_mb_emit_ldloc (mb, bounds);
11197 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
11198 mono_mb_emit_byte (mb, CEE_ADD);
11199 mono_mb_emit_byte (mb, CEE_LDIND_I4);
11200 mono_mb_emit_byte (mb, CEE_SUB);
11201 mono_mb_emit_stloc (mb, ind);
11202 /* if (ind >= bounds [0].length) goto exeception; */
11203 mono_mb_emit_ldloc (mb, ind);
11204 mono_mb_emit_ldloc (mb, bounds);
11205 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
11206 mono_mb_emit_byte (mb, CEE_ADD);
11207 mono_mb_emit_byte (mb, CEE_LDIND_I4);
11208 /* note that we use unsigned comparison */
11209 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
11210
11211 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
11212 * We could also decide to ignore the passed elem_size and get it
11213 * from the array object, to reduce the number of methods we generate:
11214 * the additional cost is 3 memory loads and a non-immediate mul.
11215 */
11216 for (i = 1; i < rank; ++i) {
11217 /* realidx = idxi - bounds [i].lower_bound */
11218 mono_mb_emit_ldarg (mb, 1 + i);
11219 mono_mb_emit_ldloc (mb, bounds);
11220 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
11221 mono_mb_emit_byte (mb, CEE_ADD);
11222 mono_mb_emit_byte (mb, CEE_LDIND_I4);
11223 mono_mb_emit_byte (mb, CEE_SUB);
11224 mono_mb_emit_stloc (mb, realidx);
11225 /* if (realidx >= bounds [i].length) goto exeception; */
11226 mono_mb_emit_ldloc (mb, realidx);
11227 mono_mb_emit_ldloc (mb, bounds);
11228 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
11229 mono_mb_emit_byte (mb, CEE_ADD);
11230 mono_mb_emit_byte (mb, CEE_LDIND_I4);
11231 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
11232 /* ind = ind * bounds [i].length + realidx */
11233 mono_mb_emit_ldloc (mb, ind);
11234 mono_mb_emit_ldloc (mb, bounds);
11235 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
11236 mono_mb_emit_byte (mb, CEE_ADD);
11237 mono_mb_emit_byte (mb, CEE_LDIND_I4);
11238 mono_mb_emit_byte (mb, CEE_MUL);
11239 mono_mb_emit_ldloc (mb, realidx);
11240 mono_mb_emit_byte (mb, CEE_ADD);
11241 mono_mb_emit_stloc (mb, ind);
11242 }
11243
11244 /* return array->vector + ind * element_size */
11245 mono_mb_emit_ldarg (mb, 0);
11246 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
11247 mono_mb_emit_ldloc (mb, ind);
11248 mono_mb_emit_icon (mb, elem_size);
11249 mono_mb_emit_byte (mb, CEE_MUL);
11250 mono_mb_emit_byte (mb, CEE_ADD);
11251 mono_mb_emit_byte (mb, CEE_RET);
11252
11253 /* patch the branches to get here and throw */
11254 for (i = 1; i < rank; ++i) {
11255 mono_mb_patch_branch (mb, branch_positions [i]);
11256 }
11257 mono_mb_patch_branch (mb, branch_pos);
11258 /* throw exception */
11259 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
11260
11261 g_free (branch_positions);
11262 #endif /* DISABLE_JIT */
11263
11264 ret = mono_mb_create_method (mb, sig, 4);
11265 mono_mb_free (mb);
11266
11267 /* cache the result */
11268 cached = 0;
11269 mono_marshal_lock ();
11270 for (i = 0; i < elem_addr_cache_next; ++i) {
11271 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
11272 /* FIXME: free ret */
11273 ret = elem_addr_cache [i].method;
11274 cached = TRUE;
11275 break;
11276 }
11277 }
11278 if (!cached) {
11279 WrapperInfo *info;
11280
11281 if (elem_addr_cache_next >= elem_addr_cache_size) {
11282 int new_size = elem_addr_cache_size + 4;
11283 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
11284 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
11285 g_free (elem_addr_cache);
11286 elem_addr_cache = new_array;
11287 elem_addr_cache_size = new_size;
11288 }
11289 elem_addr_cache [elem_addr_cache_next].rank = rank;
11290 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
11291 elem_addr_cache [elem_addr_cache_next].method = ret;
11292 elem_addr_cache_next ++;
11293
11294 info = mono_wrapper_info_create (ret, WRAPPER_SUBTYPE_ELEMENT_ADDR);
11295 info->d.element_addr.rank = rank;
11296 info->d.element_addr.elem_size = elem_size;
11297 mono_marshal_set_wrapper_info (ret, info);
11298 }
11299 mono_marshal_unlock ();
11300 return ret;
11301 }
11302
11303 void*
11304 mono_marshal_alloc (gulong size)
11305 {
11306 gpointer res;
11307
11308 #ifdef HOST_WIN32
11309 res = CoTaskMemAlloc (size);
11310 #else
11311 res = g_try_malloc ((gulong)size);
11312 if (!res)
11313 mono_gc_out_of_memory ((gulong)size);
11314 #endif
11315 return res;
11316 }
11317
11318 void
11319 mono_marshal_free (gpointer ptr)
11320 {
11321 #ifdef HOST_WIN32
11322 CoTaskMemFree (ptr);
11323 #else
11324 g_free (ptr);
11325 #endif
11326 }
11327
11328 void
11329 mono_marshal_free_array (gpointer *ptr, int size)
11330 {
11331 int i;
11332
11333 if (!ptr)
11334 return;
11335
11336 for (i = 0; i < size; i++)
11337 if (ptr [i])
11338 g_free (ptr [i]);
11339 }
11340
11341 void *
11342 mono_marshal_string_to_utf16 (MonoString *s)
11343 {
11344 return s ? mono_string_chars (s) : NULL;
11345 }
11346
11347 static void *
11348 mono_marshal_string_to_utf16_copy (MonoString *s)
11349 {
11350 if (s == NULL) {
11351 return NULL;
11352 } else {
11353 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
11354 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
11355 res [mono_string_length (s)] = 0;
11356 return res;
11357 }
11358 }
11359
11360 /**
11361 * mono_marshal_set_last_error:
11362 *
11363 * This function is invoked to set the last error value from a P/Invoke call
11364 * which has SetLastError set.
11365 */
11366 void
11367 mono_marshal_set_last_error (void)
11368 {
11369 #ifdef WIN32
11370 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
11371 #else
11372 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
11373 #endif
11374 }
11375
11376 static void
11377 mono_marshal_set_last_error_windows (int error)
11378 {
11379 #ifdef WIN32
11380 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
11381 #endif
11382 }
11383
11384 void
11385 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
11386 gpointer dest, gint32 length)
11387 {
11388 int element_size;
11389 void *source_addr;
11390
11391 MONO_ARCH_SAVE_REGS;
11392
11393 MONO_CHECK_ARG_NULL (src);
11394 MONO_CHECK_ARG_NULL (dest);
11395
11396 if (src->obj.vtable->klass->rank != 1)
11397 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
11398 if (start_index < 0)
11399 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
11400 if (length < 0)
11401 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
11402 if (start_index + length > mono_array_length (src))
11403 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
11404
11405 element_size = mono_array_element_size (src->obj.vtable->klass);
11406
11407 /* no references should be involved */
11408 source_addr = mono_array_addr_with_size (src, element_size, start_index);
11409
11410 memcpy (dest, source_addr, length * element_size);
11411 }
11412
11413 void
11414 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
11415 MonoArray *dest, gint32 length)
11416 {
11417 int element_size;
11418 void *dest_addr;
11419
11420 MONO_ARCH_SAVE_REGS;
11421
11422 MONO_CHECK_ARG_NULL (src);
11423 MONO_CHECK_ARG_NULL (dest);
11424
11425 if (dest->obj.vtable->klass->rank != 1)
11426 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
11427 if (start_index < 0)
11428 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
11429 if (length < 0)
11430 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
11431 if (start_index + length > mono_array_length (dest))
11432 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
11433
11434 element_size = mono_array_element_size (dest->obj.vtable->klass);
11435
11436 /* no references should be involved */
11437 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
11438
11439 memcpy (dest_addr, src, length * element_size);
11440 }
11441
11442 #if NO_UNALIGNED_ACCESS
11443 #define RETURN_UNALIGNED(type, addr) \
11444 { \
11445 type val; \
11446 memcpy(&val, p + offset, sizeof(val)); \
11447 return val; \
11448 }
11449 #define WRITE_UNALIGNED(type, addr, val) \
11450 memcpy(addr, &val, sizeof(type))
11451 #else
11452 #define RETURN_UNALIGNED(type, addr) \
11453 return *(type*)(p + offset);
11454 #define WRITE_UNALIGNED(type, addr, val) \
11455 (*(type *)(addr) = (val))
11456 #endif
11457
11458 gpointer
11459 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
11460 {
11461 char *p = ptr;
11462
11463 MONO_ARCH_SAVE_REGS;
11464
11465 RETURN_UNALIGNED(gpointer, p + offset);
11466 }
11467
11468 unsigned char
11469 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
11470 {
11471 char *p = ptr;
11472
11473 MONO_ARCH_SAVE_REGS;
11474
11475 return *(unsigned char*)(p + offset);
11476 }
11477
11478 gint16
11479 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
11480 {
11481 char *p = ptr;
11482
11483 MONO_ARCH_SAVE_REGS;
11484
11485 RETURN_UNALIGNED(gint16, p + offset);
11486 }
11487
11488 gint32
11489 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
11490 {
11491 char *p = ptr;
11492
11493 MONO_ARCH_SAVE_REGS;
11494
11495 RETURN_UNALIGNED(gint32, p + offset);
11496 }
11497
11498 gint64
11499 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
11500 {
11501 char *p = ptr;
11502
11503 MONO_ARCH_SAVE_REGS;
11504
11505 RETURN_UNALIGNED(gint64, p + offset);
11506 }
11507
11508 void
11509 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
11510 {
11511 char *p = ptr;
11512
11513 MONO_ARCH_SAVE_REGS;
11514
11515 *(unsigned char*)(p + offset) = val;
11516 }
11517
11518 void
11519 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
11520 {
11521 char *p = ptr;
11522
11523 MONO_ARCH_SAVE_REGS;
11524
11525 WRITE_UNALIGNED(gpointer, p + offset, val);
11526 }
11527
11528 void
11529 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
11530 {
11531 char *p = ptr;
11532
11533 MONO_ARCH_SAVE_REGS;
11534
11535 WRITE_UNALIGNED(gint16, p + offset, val);
11536 }
11537
11538 void
11539 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
11540 {
11541 char *p = ptr;
11542
11543 MONO_ARCH_SAVE_REGS;
11544
11545 WRITE_UNALIGNED(gint32, p + offset, val);
11546 }
11547
11548 void
11549 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
11550 {
11551 char *p = ptr;
11552
11553 MONO_ARCH_SAVE_REGS;
11554
11555 WRITE_UNALIGNED(gint64, p + offset, val);
11556 }
11557
11558 MonoString *
11559 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
11560 {
11561 MONO_ARCH_SAVE_REGS;
11562
11563 if (ptr == NULL)
11564 return NULL;
11565 else
11566 return mono_string_new (mono_domain_get (), ptr);
11567 }
11568
11569 MonoString *
11570 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
11571 {
11572 MONO_ARCH_SAVE_REGS;
11573
11574 if (ptr == NULL) {
11575 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
11576 g_assert_not_reached ();
11577 return NULL;
11578 } else {
11579 return mono_string_new_len (mono_domain_get (), ptr, len);
11580 }
11581 }
11582
11583 MonoString *
11584 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
11585 {
11586 MonoDomain *domain = mono_domain_get ();
11587 int len = 0;
11588 guint16 *t = ptr;
11589
11590 MONO_ARCH_SAVE_REGS;
11591
11592 if (ptr == NULL)
11593 return NULL;
11594
11595 while (*t++)
11596 len++;
11597
11598 return mono_string_new_utf16 (domain, ptr, len);
11599 }
11600
11601 MonoString *
11602 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
11603 {
11604 MonoDomain *domain = mono_domain_get ();
11605
11606 MONO_ARCH_SAVE_REGS;
11607
11608 if (ptr == NULL) {
11609 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
11610 g_assert_not_reached ();
11611 return NULL;
11612 } else {
11613 return mono_string_new_utf16 (domain, ptr, len);
11614 }
11615 }
11616
11617 guint32
11618 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
11619 {
11620 MONO_ARCH_SAVE_REGS;
11621
11622 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
11623 }
11624
11625 guint32
11626 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
11627 {
11628 MonoClass *klass;
11629 MonoType *type;
11630 guint32 layout;
11631
11632 MONO_ARCH_SAVE_REGS;
11633
11634 MONO_CHECK_ARG_NULL (rtype);
11635
11636 type = rtype->type;
11637 klass = mono_class_from_mono_type (type);
11638 if (!mono_class_init (klass))
11639 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11640
11641 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
11642
11643 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11644 gchar *msg;
11645 MonoException *exc;
11646
11647 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
11648 exc = mono_get_exception_argument ("t", msg);
11649 g_free (msg);
11650 mono_raise_exception (exc);
11651 }
11652
11653
11654 return mono_class_native_size (klass, NULL);
11655 }
11656
11657 void
11658 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
11659 {
11660 MonoMethod *method;
11661 gpointer pa [3];
11662
11663 MONO_ARCH_SAVE_REGS;
11664
11665 MONO_CHECK_ARG_NULL (obj);
11666 MONO_CHECK_ARG_NULL (dst);
11667
11668 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
11669
11670 pa [0] = obj;
11671 pa [1] = &dst;
11672 pa [2] = &delete_old;
11673
11674 mono_runtime_invoke (method, NULL, pa, NULL);
11675 }
11676
11677 static void
11678 ptr_to_structure (gpointer src, MonoObject *dst)
11679 {
11680 MonoMethod *method;
11681 gpointer pa [2];
11682
11683 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
11684
11685 pa [0] = &src;
11686 pa [1] = dst;
11687
11688 mono_runtime_invoke (method, NULL, pa, NULL);
11689 }
11690
11691 void
11692 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
11693 {
11694 MonoType *t;
11695
11696 MONO_ARCH_SAVE_REGS;
11697
11698 MONO_CHECK_ARG_NULL (src);
11699 MONO_CHECK_ARG_NULL (dst);
11700
11701 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
11702
11703 if (t->type == MONO_TYPE_VALUETYPE) {
11704 MonoException *exc;
11705 gchar *tmp;
11706
11707 tmp = g_strdup_printf ("Destination is a boxed value type.");
11708 exc = mono_get_exception_argument ("dst", tmp);
11709 g_free (tmp);
11710
11711 mono_raise_exception (exc);
11712 return;
11713 }
11714
11715 ptr_to_structure (src, dst);
11716 }
11717
11718 MonoObject *
11719 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
11720 {
11721 MonoClass *klass;
11722 MonoDomain *domain = mono_domain_get ();
11723 MonoObject *res;
11724
11725 MONO_ARCH_SAVE_REGS;
11726
11727 MONO_CHECK_ARG_NULL (src);
11728 MONO_CHECK_ARG_NULL (type);
11729
11730 klass = mono_class_from_mono_type (type->type);
11731 if (!mono_class_init (klass))
11732 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11733
11734 res = mono_object_new (domain, klass);
11735
11736 ptr_to_structure (src, res);
11737
11738 return res;
11739 }
11740
11741 int
11742 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
11743 {
11744 MonoMarshalType *info;
11745 MonoClass *klass;
11746 char *fname;
11747 int match_index = -1;
11748
11749 MONO_ARCH_SAVE_REGS;
11750
11751 MONO_CHECK_ARG_NULL (type);
11752 MONO_CHECK_ARG_NULL (field_name);
11753
11754 fname = mono_string_to_utf8 (field_name);
11755 klass = mono_class_from_mono_type (type->type);
11756 if (!mono_class_init (klass))
11757 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11758
11759 while (klass && match_index == -1) {
11760 MonoClassField* field;
11761 int i = 0;
11762 gpointer iter = NULL;
11763 while ((field = mono_class_get_fields (klass, &iter))) {
11764 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11765 continue;
11766 if (!strcmp (fname, mono_field_get_name (field))) {
11767 match_index = i;
11768 break;
11769 }
11770 i ++;
11771 }
11772
11773 if (match_index == -1)
11774 klass = klass->parent;
11775 }
11776
11777 g_free (fname);
11778
11779 if(match_index == -1) {
11780 MonoException* exc;
11781 gchar *tmp;
11782
11783 /* Get back original class instance */
11784 klass = mono_class_from_mono_type (type->type);
11785
11786 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
11787 exc = mono_get_exception_argument ("fieldName", tmp);
11788 g_free (tmp);
11789
11790 mono_raise_exception ((MonoException*)exc);
11791 }
11792
11793 info = mono_marshal_load_type_info (klass);
11794 return info->fields [match_index].offset;
11795 }
11796
11797 gpointer
11798 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11799 {
11800 #ifdef HOST_WIN32
11801 char* tres, *ret;
11802 size_t len;
11803 tres = mono_string_to_utf8 (string);
11804 if (!tres)
11805 return tres;
11806
11807 len = strlen (tres) + 1;
11808 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
11809 memcpy (ret, tres, len);
11810 g_free (tres);
11811 return ret;
11812
11813 #else
11814 return mono_string_to_utf8 (string);
11815 #endif
11816 }
11817
11818 gpointer
11819 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11820 {
11821 MONO_ARCH_SAVE_REGS;
11822
11823 if (string == NULL)
11824 return NULL;
11825 else {
11826 #ifdef TARGET_WIN32
11827 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
11828 ((mono_string_length (string) + 1) * 2);
11829 #else
11830 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
11831 #endif
11832 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11833 res [mono_string_length (string)] = 0;
11834 return res;
11835 }
11836 }
11837
11838 static void
11839 mono_struct_delete_old (MonoClass *klass, char *ptr)
11840 {
11841 MonoMarshalType *info;
11842 int i;
11843
11844 info = mono_marshal_load_type_info (klass);
11845
11846 for (i = 0; i < info->num_fields; i++) {
11847 MonoMarshalNative ntype;
11848 MonoMarshalConv conv;
11849 MonoType *ftype = info->fields [i].field->type;
11850 char *cpos;
11851
11852 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11853 continue;
11854
11855 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11856 klass->unicode, &conv);
11857
11858 cpos = ptr + info->fields [i].offset;
11859
11860 switch (conv) {
11861 case MONO_MARSHAL_CONV_NONE:
11862 if (MONO_TYPE_ISSTRUCT (ftype)) {
11863 mono_struct_delete_old (ftype->data.klass, cpos);
11864 continue;
11865 }
11866 break;
11867 case MONO_MARSHAL_CONV_STR_LPWSTR:
11868 /* We assume this field points inside a MonoString */
11869 break;
11870 case MONO_MARSHAL_CONV_STR_LPTSTR:
11871 #ifdef TARGET_WIN32
11872 /* We assume this field points inside a MonoString
11873 * on Win32 */
11874 break;
11875 #endif
11876 case MONO_MARSHAL_CONV_STR_LPSTR:
11877 case MONO_MARSHAL_CONV_STR_BSTR:
11878 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11879 case MONO_MARSHAL_CONV_STR_TBSTR:
11880 mono_marshal_free (*(gpointer *)cpos);
11881 break;
11882
11883 default:
11884 continue;
11885 }
11886 }
11887 }
11888
11889 void
11890 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11891 {
11892 MonoClass *klass;
11893
11894 MONO_ARCH_SAVE_REGS;
11895
11896 MONO_CHECK_ARG_NULL (src);
11897 MONO_CHECK_ARG_NULL (type);
11898
11899 klass = mono_class_from_mono_type (type->type);
11900 if (!mono_class_init (klass))
11901 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11902
11903 mono_struct_delete_old (klass, (char *)src);
11904 }
11905
11906 void*
11907 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
11908 {
11909 gpointer res;
11910
11911 MONO_ARCH_SAVE_REGS;
11912
11913 if ((gulong)size == 0)
11914 /* This returns a valid pointer for size 0 on MS.NET */
11915 size = 4;
11916
11917 #ifdef HOST_WIN32
11918 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
11919 #else
11920 res = g_try_malloc ((gulong)size);
11921 #endif
11922 if (!res)
11923 mono_gc_out_of_memory ((gulong)size);
11924
11925 return res;
11926 }
11927
11928 gpointer
11929 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
11930 {
11931 gpointer res;
11932
11933 if (ptr == NULL) {
11934 mono_gc_out_of_memory ((gulong)size);
11935 return NULL;
11936 }
11937
11938 #ifdef HOST_WIN32
11939 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
11940 #else
11941 res = g_try_realloc (ptr, (gulong)size);
11942 #endif
11943 if (!res)
11944 mono_gc_out_of_memory ((gulong)size);
11945
11946 return res;
11947 }
11948
11949 void
11950 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11951 {
11952 MONO_ARCH_SAVE_REGS;
11953
11954 #ifdef HOST_WIN32
11955 GlobalFree (ptr);
11956 #else
11957 g_free (ptr);
11958 #endif
11959 }
11960
11961 void*
11962 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11963 {
11964 MONO_ARCH_SAVE_REGS;
11965
11966 #ifdef HOST_WIN32
11967 return CoTaskMemAlloc (size);
11968 #else
11969 return g_try_malloc ((gulong)size);
11970 #endif
11971 }
11972
11973 void
11974 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11975 {
11976 MONO_ARCH_SAVE_REGS;
11977
11978 #ifdef HOST_WIN32
11979 CoTaskMemFree (ptr);
11980 #else
11981 g_free (ptr);
11982 #endif
11983 }
11984
11985 gpointer
11986 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11987 {
11988 MONO_ARCH_SAVE_REGS;
11989
11990 #ifdef HOST_WIN32
11991 return CoTaskMemRealloc (ptr, size);
11992 #else
11993 return g_try_realloc (ptr, (gulong)size);
11994 #endif
11995 }
11996
11997 void*
11998 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11999 {
12000 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
12001 }
12002
12003 MonoDelegate*
12004 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
12005 {
12006 MonoClass *klass = mono_type_get_class (type->type);
12007 if (!mono_class_init (klass))
12008 mono_raise_exception (mono_class_get_exception_for_failure (klass));
12009
12010 return mono_ftnptr_to_delegate (klass, ftn);
12011 }
12012
12013 /**
12014 * mono_marshal_is_loading_type_info:
12015 *
12016 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
12017 * thread.
12018 */
12019 static gboolean
12020 mono_marshal_is_loading_type_info (MonoClass *klass)
12021 {
12022 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
12023
12024 return g_slist_find (loads_list, klass) != NULL;
12025 }
12026
12027 /**
12028 * mono_marshal_load_type_info:
12029 *
12030 * Initialize klass->marshal_info using information from metadata. This function can
12031 * recursively call itself, and the caller is responsible to avoid that by calling
12032 * mono_marshal_is_loading_type_info () beforehand.
12033 *
12034 * LOCKING: Acquires the loader lock.
12035 */
12036 MonoMarshalType *
12037 mono_marshal_load_type_info (MonoClass* klass)
12038 {
12039 int j, count = 0;
12040 guint32 native_size = 0, min_align = 1, packing;
12041 MonoMarshalType *info;
12042 MonoClassField* field;
12043 gpointer iter;
12044 guint32 layout;
12045 GSList *loads_list;
12046
12047 g_assert (klass != NULL);
12048
12049 if (klass->marshal_info)
12050 return klass->marshal_info;
12051
12052 if (!klass->inited)
12053 mono_class_init (klass);
12054
12055 mono_loader_lock ();
12056
12057 if (klass->marshal_info) {
12058 mono_loader_unlock ();
12059 return klass->marshal_info;
12060 }
12061
12062 /*
12063 * This function can recursively call itself, so we keep the list of classes which are
12064 * under initialization in a TLS list.
12065 */
12066 g_assert (!mono_marshal_is_loading_type_info (klass));
12067 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
12068 loads_list = g_slist_prepend (loads_list, klass);
12069 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
12070
12071 iter = NULL;
12072 while ((field = mono_class_get_fields (klass, &iter))) {
12073 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
12074 continue;
12075 if (mono_field_is_deleted (field))
12076 continue;
12077 count++;
12078 }
12079
12080 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
12081
12082 /* The mempool is protected by the loader lock */
12083 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
12084 info->num_fields = count;
12085
12086 /* Try to find a size for this type in metadata */
12087 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
12088
12089 if (klass->parent) {
12090 int parent_size = mono_class_native_size (klass->parent, NULL);
12091
12092 /* Add parent size to real size */
12093 native_size += parent_size;
12094 info->native_size = parent_size;
12095 }
12096
12097 packing = klass->packing_size ? klass->packing_size : 8;
12098 iter = NULL;
12099 j = 0;
12100 while ((field = mono_class_get_fields (klass, &iter))) {
12101 int size;
12102 guint32 align;
12103
12104 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
12105 continue;
12106
12107 if (mono_field_is_deleted (field))
12108 continue;
12109 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
12110 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
12111 NULL, NULL, &info->fields [j].mspec);
12112
12113 info->fields [j].field = field;
12114
12115 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
12116 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
12117 /* This field is a hack inserted by MCS to empty structures */
12118 continue;
12119 }
12120
12121 switch (layout) {
12122 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
12123 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
12124 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
12125 &align, TRUE, klass->unicode);
12126 align = klass->packing_size ? MIN (klass->packing_size, align): align;
12127 min_align = MAX (align, min_align);
12128 info->fields [j].offset = info->native_size;
12129 info->fields [j].offset += align - 1;
12130 info->fields [j].offset &= ~(align - 1);
12131 info->native_size = info->fields [j].offset + size;
12132 break;
12133 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
12134 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
12135 &align, TRUE, klass->unicode);
12136 min_align = packing;
12137 info->fields [j].offset = field->offset - sizeof (MonoObject);
12138 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
12139 break;
12140 }
12141 j++;
12142 }
12143
12144 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
12145 info->native_size = MAX (native_size, info->native_size);
12146 /*
12147 * If the provided Size is equal or larger than the calculated size, and there
12148 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
12149 */
12150 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT)
12151 if (native_size && native_size == info->native_size && klass->packing_size == 0)
12152 min_align = 1;
12153 }
12154
12155 if (info->native_size & (min_align - 1)) {
12156 info->native_size += min_align - 1;
12157 info->native_size &= ~(min_align - 1);
12158 }
12159
12160 info->min_align = min_align;
12161
12162 /* Update the class's blittable info, if the layouts don't match */
12163 if (info->native_size != mono_class_value_size (klass, NULL))
12164 klass->blittable = FALSE;
12165
12166 /* If this is an array type, ensure that we have element info */
12167 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
12168 mono_marshal_load_type_info (klass->element_class);
12169 }
12170
12171 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
12172 loads_list = g_slist_remove (loads_list, klass);
12173 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
12174
12175 /*We do double-checking locking on marshal_info */
12176 mono_memory_barrier ();
12177
12178 klass->marshal_info = info;
12179
12180 mono_loader_unlock ();
12181
12182 return klass->marshal_info;
12183 }
12184
12185 /**
12186 * mono_class_native_size:
12187 * @klass: a class
12188 *
12189 * Returns: the native size of an object instance (when marshaled
12190 * to unmanaged code)
12191 */
12192 gint32
12193 mono_class_native_size (MonoClass *klass, guint32 *align)
12194 {
12195 if (!klass->marshal_info) {
12196 if (mono_marshal_is_loading_type_info (klass)) {
12197 if (align)
12198 *align = 0;
12199 return 0;
12200 } else {
12201 mono_marshal_load_type_info (klass);
12202 }
12203 }
12204
12205 if (align)
12206 *align = klass->marshal_info->min_align;
12207
12208 return klass->marshal_info->native_size;
12209 }
12210
12211 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
12212 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
12213 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
12214 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
12215
12216 /*
12217 * mono_type_native_stack_size:
12218 * @t: the type to return the size it uses on the stack
12219 *
12220 * Returns: the number of bytes required to hold an instance of this
12221 * type on the native stack
12222 */
12223 int
12224 mono_type_native_stack_size (MonoType *t, guint32 *align)
12225 {
12226 guint32 tmp;
12227
12228 g_assert (t != NULL);
12229
12230 if (!align)
12231 align = &tmp;
12232
12233 if (t->byref) {
12234 *align = sizeof (gpointer);
12235 return sizeof (gpointer);
12236 }
12237
12238 switch (t->type){
12239 case MONO_TYPE_BOOLEAN:
12240 case MONO_TYPE_CHAR:
12241 case MONO_TYPE_I1:
12242 case MONO_TYPE_U1:
12243 case MONO_TYPE_I2:
12244 case MONO_TYPE_U2:
12245 case MONO_TYPE_I4:
12246 case MONO_TYPE_U4:
12247 *align = 4;
12248 return 4;
12249 case MONO_TYPE_I:
12250 case MONO_TYPE_U:
12251 case MONO_TYPE_STRING:
12252 case MONO_TYPE_OBJECT:
12253 case MONO_TYPE_CLASS:
12254 case MONO_TYPE_SZARRAY:
12255 case MONO_TYPE_PTR:
12256 case MONO_TYPE_FNPTR:
12257 case MONO_TYPE_ARRAY:
12258 *align = sizeof (gpointer);
12259 return sizeof (gpointer);
12260 case MONO_TYPE_R4:
12261 *align = 4;
12262 return 4;
12263 case MONO_TYPE_R8:
12264 *align = ALIGNMENT (gdouble);
12265 return 8;
12266 case MONO_TYPE_I8:
12267 case MONO_TYPE_U8:
12268 *align = ALIGNMENT (glong);
12269 return 8;
12270 case MONO_TYPE_GENERICINST:
12271 if (!mono_type_generic_inst_is_valuetype (t)) {
12272 *align = sizeof (gpointer);
12273 return sizeof (gpointer);
12274 }
12275 /* Fall through */
12276 case MONO_TYPE_TYPEDBYREF:
12277 case MONO_TYPE_VALUETYPE: {
12278 guint32 size;
12279 MonoClass *klass = mono_class_from_mono_type (t);
12280
12281 if (klass->enumtype)
12282 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
12283 else {
12284 size = mono_class_native_size (klass, align);
12285 *align = *align + 3;
12286 *align &= ~3;
12287
12288 size += 3;
12289 size &= ~3;
12290
12291 return size;
12292 }
12293 }
12294 default:
12295 g_error ("type 0x%02x unknown", t->type);
12296 }
12297 return 0;
12298 }
12299
12300 gint32
12301 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
12302 gboolean as_field, gboolean unicode)
12303 {
12304 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
12305 MonoClass *klass;
12306
12307 switch (native_type) {
12308 case MONO_NATIVE_BOOLEAN:
12309 *align = 4;
12310 return 4;
12311 case MONO_NATIVE_I1:
12312 case MONO_NATIVE_U1:
12313 *align = 1;
12314 return 1;
12315 case MONO_NATIVE_I2:
12316 case MONO_NATIVE_U2:
12317 case MONO_NATIVE_VARIANTBOOL:
12318 *align = 2;
12319 return 2;
12320 case MONO_NATIVE_I4:
12321 case MONO_NATIVE_U4:
12322 case MONO_NATIVE_ERROR:
12323 *align = 4;
12324 return 4;
12325 case MONO_NATIVE_I8:
12326 case MONO_NATIVE_U8:
12327 *align = ALIGNMENT(guint64);
12328 return 8;
12329 case MONO_NATIVE_R4:
12330 *align = 4;
12331 return 4;
12332 case MONO_NATIVE_R8:
12333 *align = ALIGNMENT(double);
12334 return 8;
12335 case MONO_NATIVE_INT:
12336 case MONO_NATIVE_UINT:
12337 case MONO_NATIVE_LPSTR:
12338 case MONO_NATIVE_LPWSTR:
12339 case MONO_NATIVE_LPTSTR:
12340 case MONO_NATIVE_BSTR:
12341 case MONO_NATIVE_ANSIBSTR:
12342 case MONO_NATIVE_TBSTR:
12343 case MONO_NATIVE_LPARRAY:
12344 case MONO_NATIVE_SAFEARRAY:
12345 case MONO_NATIVE_IUNKNOWN:
12346 case MONO_NATIVE_IDISPATCH:
12347 case MONO_NATIVE_INTERFACE:
12348 case MONO_NATIVE_ASANY:
12349 case MONO_NATIVE_FUNC:
12350 case MONO_NATIVE_LPSTRUCT:
12351 *align = ALIGNMENT(gpointer);
12352 return sizeof (gpointer);
12353 case MONO_NATIVE_STRUCT:
12354 klass = mono_class_from_mono_type (type);
12355 if (klass == mono_defaults.object_class &&
12356 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
12357 *align = 16;
12358 return 16;
12359 }
12360 return mono_class_native_size (klass, align);
12361 case MONO_NATIVE_BYVALTSTR: {
12362 int esize = unicode ? 2: 1;
12363 g_assert (mspec);
12364 *align = esize;
12365 return mspec->data.array_data.num_elem * esize;
12366 }
12367 case MONO_NATIVE_BYVALARRAY: {
12368 // FIXME: Have to consider ArraySubType
12369 int esize;
12370 klass = mono_class_from_mono_type (type);
12371 if (klass->element_class == mono_defaults.char_class) {
12372 esize = unicode ? 2 : 1;
12373 *align = esize;
12374 } else {
12375 esize = mono_class_native_size (klass->element_class, align);
12376 }
12377 g_assert (mspec);
12378 return mspec->data.array_data.num_elem * esize;
12379 }
12380 case MONO_NATIVE_CUSTOM:
12381 *align = sizeof (gpointer);
12382 return sizeof (gpointer);
12383 break;
12384 case MONO_NATIVE_CURRENCY:
12385 case MONO_NATIVE_VBBYREFSTR:
12386 default:
12387 g_error ("native type %02x not implemented", native_type);
12388 break;
12389 }
12390 g_assert_not_reached ();
12391 return 0;
12392 }
12393
12394 gpointer
12395 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
12396 {
12397 MonoType *t;
12398 MonoClass *klass;
12399
12400 if (o == NULL)
12401 return NULL;
12402
12403 t = &o->vtable->klass->byval_arg;
12404 switch (t->type) {
12405 case MONO_TYPE_I4:
12406 case MONO_TYPE_U4:
12407 case MONO_TYPE_PTR:
12408 case MONO_TYPE_I1:
12409 case MONO_TYPE_U1:
12410 case MONO_TYPE_BOOLEAN:
12411 case MONO_TYPE_I2:
12412 case MONO_TYPE_U2:
12413 case MONO_TYPE_CHAR:
12414 case MONO_TYPE_I8:
12415 case MONO_TYPE_U8:
12416 case MONO_TYPE_R4:
12417 case MONO_TYPE_R8:
12418 return mono_object_unbox (o);
12419 break;
12420 case MONO_TYPE_STRING:
12421 switch (string_encoding) {
12422 case MONO_NATIVE_LPWSTR:
12423 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
12424 break;
12425 case MONO_NATIVE_LPSTR:
12426 return mono_string_to_lpstr ((MonoString*)o);
12427 break;
12428 default:
12429 g_warning ("marshaling conversion %d not implemented", string_encoding);
12430 g_assert_not_reached ();
12431 }
12432 break;
12433 case MONO_TYPE_CLASS:
12434 case MONO_TYPE_VALUETYPE: {
12435 MonoMethod *method;
12436 gpointer pa [3];
12437 gpointer res;
12438 MonoBoolean delete_old = FALSE;
12439
12440 klass = t->data.klass;
12441
12442 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
12443 break;
12444
12445 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
12446 klass->blittable || klass->enumtype))
12447 return mono_object_unbox (o);
12448
12449 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
12450
12451 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
12452 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
12453
12454 pa [0] = o;
12455 pa [1] = &res;
12456 pa [2] = &delete_old;
12457
12458 mono_runtime_invoke (method, NULL, pa, NULL);
12459 }
12460
12461 return res;
12462 }
12463 }
12464
12465 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
12466
12467 return NULL;
12468 }
12469
12470 void
12471 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
12472 {
12473 MonoType *t;
12474 MonoClass *klass;
12475
12476 if (o == NULL)
12477 return;
12478
12479 t = &o->vtable->klass->byval_arg;
12480 switch (t->type) {
12481 case MONO_TYPE_STRING:
12482 switch (string_encoding) {
12483 case MONO_NATIVE_LPWSTR:
12484 case MONO_NATIVE_LPSTR:
12485 mono_marshal_free (ptr);
12486 break;
12487 default:
12488 g_warning ("marshaling conversion %d not implemented", string_encoding);
12489 g_assert_not_reached ();
12490 }
12491 break;
12492 case MONO_TYPE_CLASS:
12493 case MONO_TYPE_VALUETYPE: {
12494 klass = t->data.klass;
12495
12496 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
12497 klass->blittable || klass->enumtype))
12498 break;
12499
12500 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
12501 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
12502 gpointer pa [2];
12503
12504 pa [0] = &ptr;
12505 pa [1] = o;
12506
12507 mono_runtime_invoke (method, NULL, pa, NULL);
12508 }
12509
12510 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
12511 mono_struct_delete_old (klass, ptr);
12512 }
12513
12514 mono_marshal_free (ptr);
12515 break;
12516 }
12517 default:
12518 break;
12519 }
12520 }
12521
12522 MonoMethod *
12523 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
12524 {
12525 MonoMethodSignature *sig, *csig;
12526 MonoMethodBuilder *mb;
12527 MonoMethod *res;
12528 WrapperInfo *info;
12529 int i;
12530
12531 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
12532 mb->method->slot = -1;
12533
12534 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
12535 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
12536
12537 sig = mono_method_signature (method);
12538 csig = signature_dup (method->klass->image, sig);
12539 csig->generic_param_count = 0;
12540
12541 #ifndef DISABLE_JIT
12542 mono_mb_emit_ldarg (mb, 0);
12543 for (i = 0; i < csig->param_count; i++)
12544 mono_mb_emit_ldarg (mb, i + 1);
12545 mono_mb_emit_managed_call (mb, method, NULL);
12546 mono_mb_emit_byte (mb, CEE_RET);
12547
12548 /* We can corlib internal methods */
12549 mb->skip_visibility = TRUE;
12550 #endif
12551
12552 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
12553
12554 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
12555 info->d.generic_array_helper.method = method;
12556 mono_marshal_set_wrapper_info (res, info);
12557
12558 mono_mb_free (mb);
12559
12560 return res;
12561 }
12562
12563 /*
12564 * The mono_win32_compat_* functions are implementations of inline
12565 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
12566 * although not exported by kernel32.
12567 *
12568 * We map the appropiate kernel32 entries to these functions using
12569 * dllmaps declared in the global etc/mono/config.
12570 */
12571
12572 void
12573 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
12574 {
12575 if (!dest || !source)
12576 return;
12577
12578 memcpy (dest, source, length);
12579 }
12580
12581 void
12582 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
12583 {
12584 memset (dest, fill, length);
12585 }
12586
12587 void
12588 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
12589 {
12590 if (!dest || !source)
12591 return;
12592
12593 memmove (dest, source, length);
12594 }
12595
12596 void
12597 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
12598 {
12599 memset (dest, 0, length);
12600 }
12601
12602 void
12603 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
12604 {
12605 int i;
12606 guint8 byte;
12607
12608 for (i = 0; i < len; ++i)
12609 if (buf [i])
12610 break;
12611
12612 g_assert (i < len);
12613
12614 byte = buf [i];
12615 while (byte && !(byte & 1))
12616 byte >>= 1;
12617 g_assert (byte == 1);
12618
12619 *byte_offset = i;
12620 *bitmask = buf [i];
12621 }
12622
12623 MonoMethod *
12624 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
12625 {
12626 MonoMethodBuilder *mb;
12627 MonoMethodSignature *sig, *csig;
12628 MonoExceptionClause *clause;
12629 MonoImage *image;
12630 MonoClass *klass;
12631 GHashTable *cache;
12632 MonoMethod *res;
12633 int i, param_count, sig_size, pos_leave;
12634
12635 g_assert (method);
12636
12637 klass = method->klass;
12638 image = method->klass->image;
12639 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
12640
12641 if ((res = mono_marshal_find_in_cache (cache, method)))
12642 return res;
12643
12644 sig = mono_method_signature (method);
12645 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12646
12647 /* add "this" and exception param */
12648 param_count = sig->param_count + sig->hasthis + 1;
12649
12650 /* dup & extend signature */
12651 csig = mono_metadata_signature_alloc (image, param_count);
12652 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
12653 memcpy (csig, sig, sig_size);
12654 csig->param_count = param_count;
12655 csig->hasthis = 0;
12656 csig->pinvoke = 1;
12657 csig->call_convention = MONO_CALL_DEFAULT;
12658
12659 if (sig->hasthis) {
12660 /* add "this" */
12661 csig->params [0] = &klass->byval_arg;
12662 /* move params up by one */
12663 for (i = 0; i < sig->param_count; i++)
12664 csig->params [i + 1] = sig->params [i];
12665 }
12666
12667 /* setup exception param as byref+[out] */
12668 csig->params [param_count - 1] = mono_metadata_type_dup (image,
12669 &mono_defaults.exception_class->byval_arg);
12670 csig->params [param_count - 1]->byref = 1;
12671 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12672
12673 /* convert struct return to object */
12674 if (MONO_TYPE_ISSTRUCT (sig->ret))
12675 csig->ret = &mono_defaults.object_class->byval_arg;
12676
12677 #ifndef DISABLE_JIT
12678 /* local 0 (temp for exception object) */
12679 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12680
12681 /* local 1 (temp for result) */
12682 if (!MONO_TYPE_IS_VOID (sig->ret))
12683 mono_mb_add_local (mb, sig->ret);
12684
12685 /* clear exception arg */
12686 mono_mb_emit_ldarg (mb, param_count - 1);
12687 mono_mb_emit_byte (mb, CEE_LDNULL);
12688 mono_mb_emit_byte (mb, CEE_STIND_REF);
12689
12690 /* try */
12691 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
12692 clause->try_offset = mono_mb_get_label (mb);
12693
12694 /* push method's args */
12695 for (i = 0; i < param_count - 1; i++) {
12696 MonoType *type;
12697 MonoClass *klass;
12698
12699 mono_mb_emit_ldarg (mb, i);
12700
12701 /* get the byval type of the param */
12702 klass = mono_class_from_mono_type (csig->params [i]);
12703 type = &klass->byval_arg;
12704
12705 /* unbox struct args */
12706 if (MONO_TYPE_ISSTRUCT (type)) {
12707 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12708
12709 /* byref args & and the "this" arg must remain a ptr.
12710 Otherwise make a copy of the value type */
12711 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12712 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12713
12714 csig->params [i] = &mono_defaults.object_class->byval_arg;
12715 }
12716 }
12717
12718 /* call */
12719 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12720 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12721 else
12722 mono_mb_emit_op (mb, CEE_CALL, method);
12723
12724 /* save result at local 1 */
12725 if (!MONO_TYPE_IS_VOID (sig->ret))
12726 mono_mb_emit_stloc (mb, 1);
12727
12728 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12729
12730 /* catch */
12731 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12732 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12733 clause->data.catch_class = mono_defaults.object_class;
12734
12735 clause->handler_offset = mono_mb_get_label (mb);
12736
12737 /* store exception at local 0 */
12738 mono_mb_emit_stloc (mb, 0);
12739 mono_mb_emit_ldarg (mb, param_count - 1);
12740 mono_mb_emit_ldloc (mb, 0);
12741 mono_mb_emit_byte (mb, CEE_STIND_REF);
12742 mono_mb_emit_branch (mb, CEE_LEAVE);
12743
12744 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12745
12746 mono_mb_set_clauses (mb, 1, clause);
12747
12748 mono_mb_patch_branch (mb, pos_leave);
12749 /* end-try */
12750
12751 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12752 mono_mb_emit_ldloc (mb, 1);
12753
12754 /* box the return value */
12755 if (MONO_TYPE_ISSTRUCT (sig->ret))
12756 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12757 }
12758
12759 mono_mb_emit_byte (mb, CEE_RET);
12760 #endif
12761
12762 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12763 mono_mb_free (mb);
12764
12765 return res;
12766 }
12767
12768 /*
12769 * mono_marshal_free_dynamic_wrappers:
12770 *
12771 * Free wrappers of the dynamic method METHOD.
12772 */
12773 void
12774 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
12775 {
12776 MonoImage *image = method->klass->image;
12777
12778 g_assert (method->dynamic);
12779
12780 /* This could be called during shutdown */
12781 if (marshal_mutex_initialized)
12782 mono_marshal_lock ();
12783 /*
12784 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12785 * they could be shared with other methods ?
12786 */
12787 if (image->runtime_invoke_direct_cache)
12788 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
12789 if (image->delegate_bound_static_invoke_cache)
12790 g_hash_table_foreach_remove (image->delegate_bound_static_invoke_cache, signature_method_pair_matches_method, method);
12791 if (image->delegate_abstract_invoke_cache)
12792 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_method_pair_matches_method, method);
12793
12794 if (marshal_mutex_initialized)
12795 mono_marshal_unlock ();
12796 }
12797
12798 static gboolean
12799 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
12800 {
12801 SignatureMethodPair *pair = (SignatureMethodPair*)key;
12802 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
12803
12804 return mono_metadata_signature_equal (pair->sig, sig);
12805 }
12806
12807 /*
12808 * mono_marshal_free_inflated_wrappers:
12809 *
12810 * Free wrappers of the inflated method METHOD.
12811 */
12812 void
12813 mono_marshal_free_inflated_wrappers (MonoMethod *method)
12814 {
12815 MonoMethodSignature *sig = method->signature;
12816
12817 g_assert (method->is_inflated);
12818
12819 /* Ignore calls occuring late during cleanup. */
12820 if (!marshal_mutex_initialized)
12821 return;
12822
12823 mono_marshal_lock ();
12824 /*
12825 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12826 * they could be shared with other methods ?
12827 */
12828
12829 /*
12830 * indexed by MonoMethodSignature
12831 */
12832 /* FIXME: This could remove unrelated wrappers as well */
12833 if (sig && method->klass->image->delegate_begin_invoke_cache)
12834 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
12835 if (sig && method->klass->image->delegate_end_invoke_cache)
12836 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
12837 if (sig && method->klass->image->delegate_invoke_cache)
12838 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
12839 if (sig && method->klass->image->runtime_invoke_cache)
12840 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
12841
12842 /*
12843 * indexed by SignatureMethodPair
12844 */
12845 if (sig && method->klass->image->delegate_abstract_invoke_cache)
12846 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
12847 signature_method_pair_matches_signature, (gpointer)sig);
12848
12849 if (sig && method->klass->image->delegate_bound_static_invoke_cache)
12850 g_hash_table_foreach_remove (method->klass->image->delegate_bound_static_invoke_cache,
12851 signature_method_pair_matches_signature, (gpointer)sig);
12852
12853 /*
12854 * indexed by MonoMethod pointers
12855 */
12856 if (method->klass->image->runtime_invoke_direct_cache)
12857 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
12858 if (method->klass->image->managed_wrapper_cache)
12859 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
12860 if (method->klass->image->native_wrapper_cache)
12861 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
12862 if (method->klass->image->remoting_invoke_cache)
12863 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
12864 if (method->klass->image->synchronized_cache)
12865 g_hash_table_remove (method->klass->image->synchronized_cache, method);
12866 if (method->klass->image->unbox_wrapper_cache)
12867 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
12868 if (method->klass->image->cominterop_invoke_cache)
12869 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
12870 if (method->klass->image->cominterop_wrapper_cache)
12871 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
12872 if (method->klass->image->thunk_invoke_cache)
12873 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
12874 if (method->klass->image->native_func_wrapper_aot_cache)
12875 g_hash_table_remove (method->klass->image->native_func_wrapper_aot_cache, method);
12876
12877 mono_marshal_unlock ();
12878 }
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