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2010-04-16 Zoltan Varga <vargaz@gmail.com>
[mono/afaerber.git] / mono / metadata / marshal.c
blobab56fa8f937f129b2847a27d75247c55d23bcc01
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 *
10 */
11
12 #include "config.h"
13 #ifdef HAVE_ALLOCA_H
14 #include <alloca.h>
15 #endif
16
17 #include "object.h"
18 #include "loader.h"
19 #include "cil-coff.h"
20 #include "metadata/marshal.h"
21 #include "metadata/method-builder.h"
22 #include "metadata/tabledefs.h"
23 #include "metadata/exception.h"
24 #include "metadata/appdomain.h"
25 #include "mono/metadata/debug-helpers.h"
26 #include "mono/metadata/threadpool.h"
27 #include "mono/metadata/threads.h"
28 #include "mono/metadata/monitor.h"
29 #include "mono/metadata/metadata-internals.h"
30 #include "mono/metadata/domain-internals.h"
31 #include "mono/metadata/gc-internal.h"
32 #include "mono/metadata/threads-types.h"
33 #include "mono/metadata/string-icalls.h"
34 #include "mono/metadata/attrdefs.h"
35 #include "mono/metadata/gc-internal.h"
36 #include "mono/metadata/cominterop.h"
37 #include "mono/utils/mono-counters.h"
38 #include <string.h>
39 #include <errno.h>
40
41 /* #define DEBUG_RUNTIME_CODE */
42
43 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
44 a = i,
45
46 typedef enum {
47 MONO_MARSHAL_NONE, /* No marshalling needed */
48 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
49 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
50 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
51 } MonoXDomainMarshalType;
52
53 enum {
54 #include "mono/cil/opcode.def"
55 LAST = 0xff
56 };
57 #undef OPDEF
58
59 struct _MonoRemotingMethods {
60 MonoMethod *invoke;
61 MonoMethod *invoke_with_check;
62 MonoMethod *xdomain_invoke;
63 MonoMethod *xdomain_dispatch;
64 };
65
66 typedef struct _MonoRemotingMethods MonoRemotingMethods;
67
68 /*
69 * This mutex protects the various marshalling related caches in MonoImage
70 * and a few other data structures static to this file.
71 * Note that when this lock is held it is not possible to take other runtime
72 * locks like the loader lock.
73 */
74 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
75 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
76 static CRITICAL_SECTION marshal_mutex;
77 static gboolean marshal_mutex_initialized;
78
79 static guint32 last_error_tls_id;
80
81 static guint32 load_type_info_tls_id;
82
83 static void
84 delegate_hash_table_add (MonoDelegate *d, MonoObject **target_loc);
85
86 static void
87 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
88
89 static void
90 mono_struct_delete_old (MonoClass *klass, char *ptr);
91
92 void *
93 mono_marshal_string_to_utf16 (MonoString *s);
94
95 static void *
96 mono_marshal_string_to_utf16_copy (MonoString *s);
97
98 static gpointer
99 mono_string_to_lpstr (MonoString *string_obj);
100
101 static MonoStringBuilder *
102 mono_string_utf8_to_builder2 (char *text);
103
104 static MonoStringBuilder *
105 mono_string_utf16_to_builder2 (gunichar2 *text);
106
107 static void
108 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
109
110 static void
111 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
112
113 static MonoObject *
114 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
115
116 static MonoAsyncResult *
117 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
118
119 static MonoObject *
120 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
121
122 static void
123 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
124
125 static gint32
126 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
127
128 static gboolean
129 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
130
131 void
132 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
133
134 static MonoReflectionType *
135 type_from_handle (MonoType *handle);
136
137 static void
138 mono_marshal_set_last_error_windows (int error);
139
140 static void init_safe_handle (void);
141
142 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
143 static MonoMethod *sh_dangerous_add_ref;
144 static MonoMethod *sh_dangerous_release;
145
146
147 static void
148 init_safe_handle ()
149 {
150 sh_dangerous_add_ref = mono_class_get_method_from_name (
151 mono_defaults.safehandle_class, "DangerousAddRef", 1);
152 sh_dangerous_release = mono_class_get_method_from_name (
153 mono_defaults.safehandle_class, "DangerousRelease", 0);
154 }
155
156 static void
157 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
158 {
159 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
160
161 mono_register_jit_icall (func, name, sig, save);
162 }
163
164 static MonoMethodSignature*
165 signature_dup (MonoImage *image, MonoMethodSignature *sig)
166 {
167 MonoMethodSignature *res;
168 int sigsize;
169
170 res = mono_metadata_signature_alloc (image, sig->param_count);
171 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
172 memcpy (res, sig, sigsize);
173
174 return res;
175 }
176
177 MonoMethodSignature*
178 mono_signature_no_pinvoke (MonoMethod *method)
179 {
180 MonoMethodSignature *sig = mono_method_signature (method);
181 if (sig->pinvoke) {
182 sig = signature_dup (method->klass->image, sig);
183 sig->pinvoke = FALSE;
184 }
185
186 return sig;
187 }
188
189 void
190 mono_marshal_init (void)
191 {
192 static gboolean module_initialized = FALSE;
193
194 if (!module_initialized) {
195 module_initialized = TRUE;
196 InitializeCriticalSection (&marshal_mutex);
197 marshal_mutex_initialized = TRUE;
198 last_error_tls_id = TlsAlloc ();
199 load_type_info_tls_id = TlsAlloc ();
200
201 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
202 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
203 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
204 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
205 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
206 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
207 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
208 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
209 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
210 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
211 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
212 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
213 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
214 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
215 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
216 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
217 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
218 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
219 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
220 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
221 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
222 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
223 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
224 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
225 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
226 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
227 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
228 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
229 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
230 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
231 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
232 register_icall (g_free, "g_free", "void ptr", FALSE);
233 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
234 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
235 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
236 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
237 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
238 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
239 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
240 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
241 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
242 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
243 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
244 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
245 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
246 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
247 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
248
249 mono_cominterop_init ();
250 }
251 }
252
253 void
254 mono_marshal_cleanup (void)
255 {
256 mono_cominterop_cleanup ();
257
258 TlsFree (load_type_info_tls_id);
259 TlsFree (last_error_tls_id);
260 DeleteCriticalSection (&marshal_mutex);
261 marshal_mutex_initialized = FALSE;
262 }
263
264 MonoClass *byte_array_class;
265 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
266 static MonoMethod *method_set_context, *method_get_context;
267 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
268
269 static void
270 mono_remoting_marshal_init (void)
271 {
272 MonoClass *klass;
273
274 static gboolean module_initialized = FALSE;
275
276 if (!module_initialized) {
277 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
278 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
279 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
280 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
281
282 klass = mono_defaults.real_proxy_class;
283 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
284
285 klass = mono_defaults.exception_class;
286 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
287
288 klass = mono_defaults.thread_class;
289 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
290
291 klass = mono_defaults.appdomain_class;
292 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
293 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
294
295 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
296 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
297
298 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
299 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
300
301 module_initialized = TRUE;
302 }
303 }
304
305 gpointer
306 mono_delegate_to_ftnptr (MonoDelegate *delegate)
307 {
308 MonoMethod *method, *wrapper;
309 MonoClass *klass;
310 MonoObject **target_loc;
311
312 if (!delegate)
313 return NULL;
314
315 if (delegate->delegate_trampoline)
316 return delegate->delegate_trampoline;
317
318 klass = ((MonoObject *)delegate)->vtable->klass;
319 g_assert (klass->delegate);
320
321 method = delegate->method;
322
323 if (mono_method_signature (method)->pinvoke) {
324 const char *exc_class, *exc_arg;
325 gpointer ftnptr;
326
327 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
328 if (!ftnptr) {
329 g_assert (exc_class);
330 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
331 }
332 return ftnptr;
333 }
334
335 if (delegate->target) {
336 /* Produce a location which can be embedded in JITted code */
337 target_loc = mono_gc_alloc_fixed (sizeof (MonoObject*), NULL);
338 *target_loc = delegate->target;
339 } else {
340 target_loc = NULL;
341 }
342
343 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_loc);
344
345 delegate->delegate_trampoline = mono_compile_method (wrapper);
346
347 // Add the delegate to the delegate hash table
348 delegate_hash_table_add (delegate, target_loc);
349
350 /* when the object is collected, collect the dynamic method, too */
351 mono_object_register_finalizer ((MonoObject*)delegate);
352
353 return delegate->delegate_trampoline;
354 }
355
356 /*
357 * this hash table maps from a delegate trampoline object to a weak reference
358 * of the delegate. As an optimizations with a non-moving GC we store the
359 * object pointer itself, otherwise we use a GC handle.
360 */
361 static GHashTable *delegate_hash_table;
362 /* Contains root locations pointing to the this arguments of delegates */
363 static MonoGHashTable *delegate_target_locations;
364
365 static GHashTable *
366 delegate_hash_table_new (void) {
367 return g_hash_table_new (NULL, NULL);
368 }
369
370 static void
371 delegate_hash_table_remove (MonoDelegate *d)
372 {
373 MonoObject **target_loc;
374 #ifdef HAVE_MOVING_COLLECTOR
375 guint32 gchandle;
376 #endif
377 mono_marshal_lock ();
378 if (delegate_hash_table == NULL)
379 delegate_hash_table = delegate_hash_table_new ();
380 #ifdef HAVE_MOVING_COLLECTOR
381 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
382 #endif
383 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
384 if (delegate_target_locations)
385 target_loc = mono_g_hash_table_lookup (delegate_target_locations, d->delegate_trampoline);
386 else
387 target_loc = NULL;
388 if (target_loc)
389 mono_g_hash_table_remove (delegate_target_locations, d->delegate_trampoline);
390 mono_marshal_unlock ();
391 if (target_loc) {
392 mono_gc_free_fixed (target_loc);
393 }
394 #ifdef HAVE_MOVING_COLLECTOR
395 mono_gchandle_free (gchandle);
396 #endif
397 }
398
399 static void
400 delegate_hash_table_add (MonoDelegate *d, MonoObject **target_loc)
401 {
402 #ifdef HAVE_MOVING_COLLECTOR
403 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
404 guint32 old_gchandle;
405 #endif
406 mono_marshal_lock ();
407 if (delegate_hash_table == NULL)
408 delegate_hash_table = delegate_hash_table_new ();
409 if (delegate_target_locations == NULL) {
410 /* Has to be conservative as the values are not object references */
411 delegate_target_locations = mono_g_hash_table_new_type (NULL, NULL, MONO_HASH_CONSERVATIVE_GC);
412 MONO_GC_REGISTER_ROOT (delegate_target_locations);
413 }
414 #ifdef HAVE_MOVING_COLLECTOR
415 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
416 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
417 if (old_gchandle)
418 mono_gchandle_free (old_gchandle);
419 #else
420 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
421 #endif
422 if (target_loc)
423 /* This keeps target_loc alive for Boehm */
424 mono_g_hash_table_insert (delegate_target_locations, d->delegate_trampoline, target_loc);
425 mono_marshal_unlock ();
426 }
427
428 MonoDelegate*
429 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
430 {
431 #ifdef HAVE_MOVING_COLLECTOR
432 guint32 gchandle;
433 #endif
434 MonoDelegate *d;
435
436 if (ftn == NULL)
437 return NULL;
438
439 mono_marshal_lock ();
440 if (delegate_hash_table == NULL)
441 delegate_hash_table = delegate_hash_table_new ();
442
443 #ifdef HAVE_MOVING_COLLECTOR
444 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
445 mono_marshal_unlock ();
446 if (gchandle)
447 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
448 else
449 d = NULL;
450 #else
451 d = g_hash_table_lookup (delegate_hash_table, ftn);
452 mono_marshal_unlock ();
453 #endif
454 if (d == NULL) {
455 /* This is a native function, so construct a delegate for it */
456 static MonoClass *UnmanagedFunctionPointerAttribute;
457 MonoMethodSignature *sig;
458 MonoMethod *wrapper;
459 MonoMarshalSpec **mspecs;
460 MonoCustomAttrInfo *cinfo;
461 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
462 MonoMethod *invoke = mono_get_delegate_invoke (klass);
463 MonoMethodPInvoke piinfo;
464 int i;
465
466 memset (&piinfo, 0, sizeof (piinfo));
467 if (!UnmanagedFunctionPointerAttribute)
468 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
469
470 /* The attribute is only available in Net 2.0 */
471 if (UnmanagedFunctionPointerAttribute) {
472 /*
473 * The pinvoke attributes are stored in a real custom attribute so we have to
474 * construct it.
475 */
476 cinfo = mono_custom_attrs_from_class (klass);
477 if (cinfo) {
478 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
479 if (attr) {
480 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
481 }
482 if (!cinfo->cached)
483 mono_custom_attrs_free (cinfo);
484 }
485 }
486
487 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
488 mono_method_get_marshal_info (invoke, mspecs);
489 /* Freed below so don't alloc from mempool */
490 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
491 sig->hasthis = 0;
492
493 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
494
495 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
496 if (mspecs [i])
497 mono_metadata_free_marshal_spec (mspecs [i]);
498 g_free (mspecs);
499 g_free (sig);
500
501 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
502 mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
503 }
504
505 if (d->object.vtable->domain != mono_domain_get ())
506 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
507
508 return d;
509 }
510
511 void
512 mono_delegate_free_ftnptr (MonoDelegate *delegate)
513 {
514 MonoJitInfo *ji;
515 void *ptr;
516
517 delegate_hash_table_remove (delegate);
518
519 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
520
521 if (!delegate->target) {
522 /* The wrapper method is shared between delegates -> no need to free it */
523 return;
524 }
525
526 if (ptr) {
527 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
528 g_assert (ji);
529
530 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
531 }
532 }
533
534 gpointer
535 mono_array_to_savearray (MonoArray *array)
536 {
537 if (!array)
538 return NULL;
539
540 g_assert_not_reached ();
541 return NULL;
542 }
543
544 gpointer
545 mono_array_to_lparray (MonoArray *array)
546 {
547 gpointer *nativeArray = NULL;
548 int nativeArraySize = 0;
549
550 int i = 0;
551 MonoClass *klass;
552
553 if (!array)
554 return NULL;
555 #ifndef DISABLE_COM
556
557 klass = array->obj.vtable->klass;
558
559 switch (klass->element_class->byval_arg.type) {
560 case MONO_TYPE_VOID:
561 g_assert_not_reached ();
562 break;
563 #ifndef DISABLE_COM
564 case MONO_TYPE_CLASS:
565 nativeArraySize = array->max_length;
566 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
567 for(i = 0; i < nativeArraySize; ++i)
568 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
569 return nativeArray;
570 #endif
571 case MONO_TYPE_U1:
572 case MONO_TYPE_BOOLEAN:
573 case MONO_TYPE_I1:
574 case MONO_TYPE_U2:
575 case MONO_TYPE_CHAR:
576 case MONO_TYPE_I2:
577 case MONO_TYPE_I:
578 case MONO_TYPE_U:
579 case MONO_TYPE_I4:
580 case MONO_TYPE_U4:
581 case MONO_TYPE_U8:
582 case MONO_TYPE_I8:
583 case MONO_TYPE_R4:
584 case MONO_TYPE_R8:
585 case MONO_TYPE_VALUETYPE:
586 /* nothing to do */
587 break;
588 case MONO_TYPE_GENERICINST:
589 case MONO_TYPE_PTR:
590 case MONO_TYPE_OBJECT:
591 case MONO_TYPE_ARRAY:
592 case MONO_TYPE_SZARRAY:
593 case MONO_TYPE_STRING:
594 default:
595 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
596 g_assert_not_reached ();
597 }
598 #endif
599 return array->vector;
600 }
601
602 void
603 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
604 {
605 #ifndef DISABLE_COM
606 MonoClass *klass;
607 int i = 0;
608
609 if (!array)
610 return;
611
612 if (!nativeArray)
613 return;
614 klass = array->obj.vtable->klass;
615
616 switch (klass->element_class->byval_arg.type) {
617 case MONO_TYPE_CLASS:
618 for(i = 0; i < array->max_length; ++i)
619 mono_marshal_free_ccw(nativeArray[i]);
620 free(nativeArray);
621 break;
622 }
623 #endif
624 }
625
626 static void
627 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
628 {
629 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
630
631 if (elclass == mono_defaults.byte_class) {
632 GError *error = NULL;
633 guint16 *ut;
634 glong items_written;
635
636 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
637
638 if (!error) {
639 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
640 g_free (ut);
641 }
642 else
643 g_error_free (error);
644 }
645 else
646 g_assert_not_reached ();
647 }
648
649 static void
650 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
651 {
652 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
653
654 if (elclass == mono_defaults.byte_class) {
655 char *as;
656 GError *error = NULL;
657
658 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
659 if (error) {
660 MonoException *exc = mono_get_exception_argument ("string", error->message);
661 g_error_free (error);
662 mono_raise_exception (exc);
663 }
664
665 memcpy (native_arr, as, MIN (strlen (as), elnum));
666 g_free (as);
667 } else {
668 g_assert_not_reached ();
669 }
670 }
671
672 void
673 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
674 {
675 GError *error = NULL;
676 guint16 *ut;
677 glong items_written;
678 int l;
679
680 if (!sb || !text)
681 return;
682
683 l = strlen (text);
684
685 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
686
687 if (items_written > mono_stringbuilder_capacity (sb))
688 items_written = mono_stringbuilder_capacity (sb);
689
690 if (!error) {
691 if (! sb->str || sb->str == sb->cached_str) {
692 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
693 sb->cached_str = NULL;
694 }
695
696 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
697 sb->length = items_written;
698 } else
699 g_error_free (error);
700
701 g_free (ut);
702 }
703
704 MonoStringBuilder *
705 mono_string_utf8_to_builder2 (char *text)
706 {
707 int l;
708 MonoStringBuilder *sb;
709 static MonoClass *string_builder_class;
710 static MonoMethod *sb_ctor;
711 void *args [1];
712 MonoObject *exc;
713
714 if (!text)
715 return NULL;
716
717 if (!string_builder_class) {
718 MonoMethodDesc *desc;
719
720 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
721 g_assert (string_builder_class);
722 desc = mono_method_desc_new (":.ctor(int)", FALSE);
723 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
724 g_assert (sb_ctor);
725 mono_method_desc_free (desc);
726 }
727
728 l = strlen (text);
729
730 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
731 g_assert (sb);
732 args [0] = &l;
733 mono_runtime_invoke (sb_ctor, sb, args, &exc);
734 g_assert (!exc);
735
736 mono_string_utf8_to_builder (sb, text);
737
738 return sb;
739 }
740
741 /*
742 * FIXME: This routine does not seem to do what it seems to do
743 * the @text is never copied into the string builder
744 */
745 void
746 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
747 {
748 guint32 len;
749
750 if (!sb || !text)
751 return;
752
753 g_assert (mono_string_chars (sb->str) == text);
754
755 for (len = 0; text [len] != 0; ++len)
756 ;
757
758 sb->length = len;
759 }
760
761 MonoStringBuilder *
762 mono_string_utf16_to_builder2 (gunichar2 *text)
763 {
764 int len;
765 MonoStringBuilder *sb;
766 static MonoClass *string_builder_class;
767 static MonoMethod *sb_ctor;
768 void *args [1];
769 MonoObject *exc;
770
771 if (!text)
772 return NULL;
773
774 if (!string_builder_class) {
775 MonoMethodDesc *desc;
776
777 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
778 g_assert (string_builder_class);
779 desc = mono_method_desc_new (":.ctor(int)", FALSE);
780 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
781 g_assert (sb_ctor);
782 mono_method_desc_free (desc);
783 }
784
785 for (len = 0; text [len] != 0; ++len)
786 ;
787
788 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
789 g_assert (sb);
790 args [0] = &len;
791 mono_runtime_invoke (sb_ctor, sb, args, &exc);
792 g_assert (!exc);
793
794 sb->length = len;
795 memcpy (mono_string_chars (sb->str), text, len * 2);
796
797 return sb;
798 }
799
800 /**
801 * mono_string_builder_to_utf8:
802 * @sb: the string builder
803 *
804 * Converts to utf8 the contents of the MonoStringBuilder.
805 *
806 * Returns: a utf8 string with the contents of the StringBuilder.
807 *
808 * The return value must be released with g_free.
809 */
810 gpointer
811 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
812 {
813 GError *error = NULL;
814 gchar *tmp, *res = NULL;
815
816 if (!sb)
817 return NULL;
818
819 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
820 /*
821 * The sb could have been allocated with the default capacity and be empty.
822 * we need to alloc a buffer of the default capacity in this case.
823 */
824 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
825 sb->cached_str = NULL;
826 }
827
828 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
829 if (error) {
830 g_error_free (error);
831 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
832 } else {
833 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
834 memcpy (res, tmp, sb->length + 1);
835 g_free (tmp);
836 }
837
838 return res;
839 }
840
841 /**
842 * mono_string_builder_to_utf16:
843 * @sb: the string builder
844 *
845 * Converts to utf16 the contents of the MonoStringBuilder.
846 *
847 * Returns: a utf16 string with the contents of the StringBuilder.
848 *
849 * The return value must not be freed.
850 */
851 gpointer
852 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
853 {
854 if (!sb)
855 return NULL;
856
857 g_assert (sb->str);
858
859 /*
860 * The stringbuilder might not have ownership of this string. If this is
861 * the case, we must duplicate the string, so that we don't munge immutable
862 * strings
863 */
864 if (sb->str == sb->cached_str) {
865 /*
866 * The sb could have been allocated with the default capacity and be empty.
867 * we need to alloc a buffer of the default capacity in this case.
868 */
869 if (sb->str->length == 0)
870 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
871 else
872 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
873 sb->cached_str = NULL;
874 }
875
876 if (sb->length == 0)
877 *(mono_string_chars (sb->str)) = '\0';
878
879 return mono_string_chars (sb->str);
880 }
881
882 static gpointer
883 mono_string_to_lpstr (MonoString *s)
884 {
885 #ifdef TARGET_WIN32
886 char *as, *tmp;
887 glong len;
888 GError *error = NULL;
889
890 if (s == NULL)
891 return NULL;
892
893 if (!s->length) {
894 as = CoTaskMemAlloc (1);
895 as [0] = '\0';
896 return as;
897 }
898
899 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
900 if (error) {
901 MonoException *exc = mono_get_exception_argument ("string", error->message);
902 g_error_free (error);
903 mono_raise_exception(exc);
904 return NULL;
905 } else {
906 as = CoTaskMemAlloc (len + 1);
907 memcpy (as, tmp, len + 1);
908 g_free (tmp);
909 return as;
910 }
911 #else
912 return mono_string_to_utf8 (s);
913 #endif
914 }
915
916 gpointer
917 mono_string_to_ansibstr (MonoString *string_obj)
918 {
919 g_error ("UnmanagedMarshal.BStr is not implemented.");
920 return NULL;
921 }
922
923 /**
924 * mono_string_to_byvalstr:
925 * @dst: Where to store the null-terminated utf8 decoded string.
926 * @src: the MonoString to copy.
927 * @size: the maximum number of bytes to copy.
928 *
929 * Copies the MonoString pointed to by @src as a utf8 string
930 * into @dst, it copies at most @size bytes into the destination.
931 */
932 void
933 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
934 {
935 char *s;
936 int len;
937
938 g_assert (dst != NULL);
939 g_assert (size > 0);
940
941 memset (dst, 0, size);
942 if (!src)
943 return;
944
945 s = mono_string_to_utf8 (src);
946 len = MIN (size, strlen (s));
947 if (len >= size)
948 len--;
949 memcpy (dst, s, len);
950 g_free (s);
951 }
952
953 /**
954 * mono_string_to_byvalwstr:
955 * @dst: Where to store the null-terminated utf16 decoded string.
956 * @src: the MonoString to copy.
957 * @size: the maximum number of bytes to copy.
958 *
959 * Copies the MonoString pointed to by @src as a utf16 string into
960 * @dst, it copies at most @size bytes into the destination (including
961 * a terminating 16-bit zero terminator).
962 */
963 void
964 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
965 {
966 int len;
967
968 g_assert (dst != NULL);
969 g_assert (size > 1);
970
971 if (!src) {
972 memset (dst, 0, size * 2);
973 return;
974 }
975
976 len = MIN (size, (mono_string_length (src)));
977 memcpy (dst, mono_string_chars (src), size * 2);
978 if (size <= mono_string_length (src))
979 len--;
980 *((gunichar2 *) dst + len) = 0;
981 }
982
983 static int
984 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
985 {
986 int pos;
987 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
988 mono_mb_emit_byte (mb, CEE_LDIND_I);
989 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
990 mono_mb_emit_byte (mb, CEE_ADD);
991 mono_mb_emit_byte (mb, CEE_LDIND_I);
992 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
993 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
994 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
995 pos = mono_mb_emit_branch (mb, branch_code);
996 return pos;
997 }
998
999 static int
1000 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1001 {
1002 int pos;
1003 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1004 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1005 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1006 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1007 mono_mb_emit_icon (mb, -1);
1008 pos = mono_mb_emit_branch (mb, branch_code);
1009 return pos;
1010 }
1011
1012 static int
1013 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
1014 {
1015 static int offset = -1;
1016 static guint8 mask;
1017
1018 if (offset < 0)
1019 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
1020
1021 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
1022 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1023 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
1024 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1025 mono_mb_emit_ldflda (mb, offset);
1026 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1027 mono_mb_emit_icon (mb, mask);
1028 mono_mb_emit_byte (mb, CEE_AND);
1029 mono_mb_emit_icon (mb, 0);
1030 return mono_mb_emit_branch (mb, branch_code);
1031 }
1032
1033 static void
1034 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
1035 {
1036 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
1037 }
1038
1039 guint
1040 mono_type_to_ldind (MonoType *type)
1041 {
1042 if (type->byref)
1043 return CEE_LDIND_I;
1044
1045 handle_enum:
1046 switch (type->type) {
1047 case MONO_TYPE_I1:
1048 return CEE_LDIND_I1;
1049 case MONO_TYPE_U1:
1050 case MONO_TYPE_BOOLEAN:
1051 return CEE_LDIND_U1;
1052 case MONO_TYPE_I2:
1053 return CEE_LDIND_I2;
1054 case MONO_TYPE_U2:
1055 case MONO_TYPE_CHAR:
1056 return CEE_LDIND_U2;
1057 case MONO_TYPE_I4:
1058 return CEE_LDIND_I4;
1059 case MONO_TYPE_U4:
1060 return CEE_LDIND_U4;
1061 case MONO_TYPE_I:
1062 case MONO_TYPE_U:
1063 case MONO_TYPE_PTR:
1064 case MONO_TYPE_FNPTR:
1065 return CEE_LDIND_I;
1066 case MONO_TYPE_CLASS:
1067 case MONO_TYPE_STRING:
1068 case MONO_TYPE_OBJECT:
1069 case MONO_TYPE_SZARRAY:
1070 case MONO_TYPE_ARRAY:
1071 return CEE_LDIND_REF;
1072 case MONO_TYPE_I8:
1073 case MONO_TYPE_U8:
1074 return CEE_LDIND_I8;
1075 case MONO_TYPE_R4:
1076 return CEE_LDIND_R4;
1077 case MONO_TYPE_R8:
1078 return CEE_LDIND_R8;
1079 case MONO_TYPE_VALUETYPE:
1080 if (type->data.klass->enumtype) {
1081 type = mono_class_enum_basetype (type->data.klass);
1082 goto handle_enum;
1083 }
1084 return CEE_LDOBJ;
1085 case MONO_TYPE_TYPEDBYREF:
1086 return CEE_LDOBJ;
1087 case MONO_TYPE_GENERICINST:
1088 type = &type->data.generic_class->container_class->byval_arg;
1089 goto handle_enum;
1090 default:
1091 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1092 }
1093 return -1;
1094 }
1095
1096 guint
1097 mono_type_to_stind (MonoType *type)
1098 {
1099 if (type->byref)
1100 return CEE_STIND_I;
1101
1102 handle_enum:
1103 switch (type->type) {
1104 case MONO_TYPE_I1:
1105 case MONO_TYPE_U1:
1106 case MONO_TYPE_BOOLEAN:
1107 return CEE_STIND_I1;
1108 case MONO_TYPE_I2:
1109 case MONO_TYPE_U2:
1110 case MONO_TYPE_CHAR:
1111 return CEE_STIND_I2;
1112 case MONO_TYPE_I4:
1113 case MONO_TYPE_U4:
1114 return CEE_STIND_I4;
1115 case MONO_TYPE_I:
1116 case MONO_TYPE_U:
1117 case MONO_TYPE_PTR:
1118 case MONO_TYPE_FNPTR:
1119 return CEE_STIND_I;
1120 case MONO_TYPE_CLASS:
1121 case MONO_TYPE_STRING:
1122 case MONO_TYPE_OBJECT:
1123 case MONO_TYPE_SZARRAY:
1124 case MONO_TYPE_ARRAY:
1125 return CEE_STIND_REF;
1126 case MONO_TYPE_I8:
1127 case MONO_TYPE_U8:
1128 return CEE_STIND_I8;
1129 case MONO_TYPE_R4:
1130 return CEE_STIND_R4;
1131 case MONO_TYPE_R8:
1132 return CEE_STIND_R8;
1133 case MONO_TYPE_VALUETYPE:
1134 if (type->data.klass->enumtype) {
1135 type = mono_class_enum_basetype (type->data.klass);
1136 goto handle_enum;
1137 }
1138 return CEE_STOBJ;
1139 case MONO_TYPE_TYPEDBYREF:
1140 return CEE_STOBJ;
1141 case MONO_TYPE_GENERICINST:
1142 type = &type->data.generic_class->container_class->byval_arg;
1143 goto handle_enum;
1144 default:
1145 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1146 }
1147 return -1;
1148 }
1149
1150 static void
1151 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1152 {
1153 switch (conv) {
1154 case MONO_MARSHAL_CONV_BOOL_I4:
1155 mono_mb_emit_ldloc (mb, 1);
1156 mono_mb_emit_ldloc (mb, 0);
1157 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1158 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1159 mono_mb_emit_byte (mb, 3);
1160 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1161 mono_mb_emit_byte (mb, CEE_BR_S);
1162 mono_mb_emit_byte (mb, 1);
1163 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1164 mono_mb_emit_byte (mb, CEE_STIND_I1);
1165 break;
1166 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1167 mono_mb_emit_ldloc (mb, 1);
1168 mono_mb_emit_ldloc (mb, 0);
1169 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1170 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1171 mono_mb_emit_byte (mb, 3);
1172 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1173 mono_mb_emit_byte (mb, CEE_BR_S);
1174 mono_mb_emit_byte (mb, 1);
1175 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1176 mono_mb_emit_byte (mb, CEE_STIND_I1);
1177 break;
1178 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1179 MonoClass *eklass = NULL;
1180 int esize;
1181
1182 if (type->type == MONO_TYPE_SZARRAY) {
1183 eklass = type->data.klass;
1184 } else {
1185 g_assert_not_reached ();
1186 }
1187
1188 esize = mono_class_native_size (eklass, NULL);
1189
1190 /* create a new array */
1191 mono_mb_emit_ldloc (mb, 1);
1192 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1193 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1194 mono_mb_emit_byte (mb, CEE_STIND_I);
1195
1196 if (eklass->blittable) {
1197 /* copy the elements */
1198 mono_mb_emit_ldloc (mb, 1);
1199 mono_mb_emit_byte (mb, CEE_LDIND_I);
1200 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1201 mono_mb_emit_byte (mb, CEE_ADD);
1202 mono_mb_emit_ldloc (mb, 0);
1203 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1204 mono_mb_emit_byte (mb, CEE_PREFIX1);
1205 mono_mb_emit_byte (mb, CEE_CPBLK);
1206 }
1207 else {
1208 int array_var, src_var, dst_var, index_var;
1209 guint32 label2, label3;
1210
1211 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1212 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1213 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1214
1215 /* set array_var */
1216 mono_mb_emit_ldloc (mb, 1);
1217 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1218 mono_mb_emit_stloc (mb, array_var);
1219
1220 /* save the old src pointer */
1221 mono_mb_emit_ldloc (mb, 0);
1222 mono_mb_emit_stloc (mb, src_var);
1223 /* save the old dst pointer */
1224 mono_mb_emit_ldloc (mb, 1);
1225 mono_mb_emit_stloc (mb, dst_var);
1226
1227 /* Emit marshalling loop */
1228 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1229 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1230 mono_mb_emit_stloc (mb, index_var);
1231
1232 /* Loop header */
1233 label2 = mono_mb_get_label (mb);
1234 mono_mb_emit_ldloc (mb, index_var);
1235 mono_mb_emit_ldloc (mb, array_var);
1236 mono_mb_emit_byte (mb, CEE_LDLEN);
1237 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1238
1239 /* src is already set */
1240
1241 /* Set dst */
1242 mono_mb_emit_ldloc (mb, array_var);
1243 mono_mb_emit_ldloc (mb, index_var);
1244 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1245 mono_mb_emit_stloc (mb, 1);
1246
1247 /* Do the conversion */
1248 emit_struct_conv (mb, eklass, TRUE);
1249
1250 /* Loop footer */
1251 mono_mb_emit_add_to_local (mb, index_var, 1);
1252
1253 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1254
1255 mono_mb_patch_branch (mb, label3);
1256
1257 /* restore the old src pointer */
1258 mono_mb_emit_ldloc (mb, src_var);
1259 mono_mb_emit_stloc (mb, 0);
1260 /* restore the old dst pointer */
1261 mono_mb_emit_ldloc (mb, dst_var);
1262 mono_mb_emit_stloc (mb, 1);
1263 }
1264 break;
1265 }
1266 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1267 MonoClass *eclass = mono_defaults.char_class;
1268
1269 /* create a new array */
1270 mono_mb_emit_ldloc (mb, 1);
1271 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1272 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1273 mono_mb_emit_byte (mb, CEE_STIND_REF);
1274
1275 mono_mb_emit_ldloc (mb, 1);
1276 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1277 mono_mb_emit_ldloc (mb, 0);
1278 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1279 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1280 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1281 break;
1282 }
1283 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1284 mono_mb_emit_ldloc (mb, 1);
1285 mono_mb_emit_ldloc (mb, 0);
1286 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1287 mono_mb_emit_byte (mb, CEE_STIND_REF);
1288 break;
1289 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1290 mono_mb_emit_ldloc (mb, 1);
1291 mono_mb_emit_ldloc (mb, 0);
1292 mono_mb_emit_icall (mb, mono_string_from_utf16);
1293 mono_mb_emit_byte (mb, CEE_STIND_REF);
1294 break;
1295 case MONO_MARSHAL_CONV_STR_LPTSTR:
1296 mono_mb_emit_ldloc (mb, 1);
1297 mono_mb_emit_ldloc (mb, 0);
1298 mono_mb_emit_byte (mb, CEE_LDIND_I);
1299 #ifdef TARGET_WIN32
1300 mono_mb_emit_icall (mb, mono_string_from_utf16);
1301 #else
1302 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1303 #endif
1304 mono_mb_emit_byte (mb, CEE_STIND_REF);
1305 break;
1306 case MONO_MARSHAL_CONV_STR_LPSTR:
1307 mono_mb_emit_ldloc (mb, 1);
1308 mono_mb_emit_ldloc (mb, 0);
1309 mono_mb_emit_byte (mb, CEE_LDIND_I);
1310 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1311 mono_mb_emit_byte (mb, CEE_STIND_REF);
1312 break;
1313 case MONO_MARSHAL_CONV_STR_LPWSTR:
1314 mono_mb_emit_ldloc (mb, 1);
1315 mono_mb_emit_ldloc (mb, 0);
1316 mono_mb_emit_byte (mb, CEE_LDIND_I);
1317 mono_mb_emit_icall (mb, mono_string_from_utf16);
1318 mono_mb_emit_byte (mb, CEE_STIND_REF);
1319 break;
1320 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1321 MonoClass *klass = mono_class_from_mono_type (type);
1322 int src_var, dst_var;
1323
1324 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1325 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1326
1327 /* *dst = new object */
1328 mono_mb_emit_ldloc (mb, 1);
1329 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1330 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1331 mono_mb_emit_byte (mb, CEE_STIND_REF);
1332
1333 /* save the old src pointer */
1334 mono_mb_emit_ldloc (mb, 0);
1335 mono_mb_emit_stloc (mb, src_var);
1336 /* save the old dst pointer */
1337 mono_mb_emit_ldloc (mb, 1);
1338 mono_mb_emit_stloc (mb, dst_var);
1339
1340 /* dst = pointer to newly created object data */
1341 mono_mb_emit_ldloc (mb, 1);
1342 mono_mb_emit_byte (mb, CEE_LDIND_I);
1343 mono_mb_emit_icon (mb, sizeof (MonoObject));
1344 mono_mb_emit_byte (mb, CEE_ADD);
1345 mono_mb_emit_stloc (mb, 1);
1346
1347 emit_struct_conv (mb, klass, TRUE);
1348
1349 /* restore the old src pointer */
1350 mono_mb_emit_ldloc (mb, src_var);
1351 mono_mb_emit_stloc (mb, 0);
1352 /* restore the old dst pointer */
1353 mono_mb_emit_ldloc (mb, dst_var);
1354 mono_mb_emit_stloc (mb, 1);
1355 break;
1356 }
1357 case MONO_MARSHAL_CONV_DEL_FTN: {
1358 MonoClass *klass = mono_class_from_mono_type (type);
1359
1360 mono_mb_emit_ldloc (mb, 1);
1361 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1362 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1363 mono_mb_emit_ldloc (mb, 0);
1364 mono_mb_emit_byte (mb, CEE_LDIND_I);
1365 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1366 mono_mb_emit_byte (mb, CEE_STIND_REF);
1367 break;
1368 }
1369 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1370 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1371 break;
1372
1373 #ifndef DISABLE_COM
1374 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1375 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1376 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1377 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1378 break;
1379 #endif /* DISABLE_COM */
1380
1381 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1382 /*
1383 * Passing SafeHandles as ref does not allow the unmanaged code
1384 * to change the SafeHandle value. If the value is changed,
1385 * we should issue a diagnostic exception (NotSupportedException)
1386 * that informs the user that changes to handles in unmanaged code
1387 * is not supported.
1388 *
1389 * Since we currently have no access to the original
1390 * SafeHandle that was used during the marshalling,
1391 * for now we just ignore this, and ignore/discard any
1392 * changes that might have happened to the handle.
1393 */
1394 break;
1395 }
1396
1397 case MONO_MARSHAL_CONV_HANDLEREF: {
1398 /*
1399 * Passing HandleRefs in a struct that is ref()ed does not
1400 * copy the values back to the HandleRef
1401 */
1402 break;
1403 }
1404
1405 case MONO_MARSHAL_CONV_STR_BSTR:
1406 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1407 case MONO_MARSHAL_CONV_STR_TBSTR:
1408 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1409 default: {
1410 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1411
1412 mono_mb_emit_exception_marshal_directive (mb, msg);
1413 g_free (msg);
1414 break;
1415 }
1416 }
1417 }
1418
1419 static gpointer
1420 conv_to_icall (MonoMarshalConv conv)
1421 {
1422 switch (conv) {
1423 case MONO_MARSHAL_CONV_STR_LPWSTR:
1424 return mono_marshal_string_to_utf16;
1425 case MONO_MARSHAL_CONV_LPWSTR_STR:
1426 return mono_string_from_utf16;
1427 case MONO_MARSHAL_CONV_LPSTR_STR:
1428 return mono_string_new_wrapper;
1429 case MONO_MARSHAL_CONV_STR_LPTSTR:
1430 #ifdef TARGET_WIN32
1431 return mono_marshal_string_to_utf16;
1432 #else
1433 return mono_string_to_lpstr;
1434 #endif
1435 case MONO_MARSHAL_CONV_STR_LPSTR:
1436 return mono_string_to_lpstr;
1437 case MONO_MARSHAL_CONV_STR_BSTR:
1438 return mono_string_to_bstr;
1439 case MONO_MARSHAL_CONV_BSTR_STR:
1440 return mono_string_from_bstr;
1441 case MONO_MARSHAL_CONV_STR_TBSTR:
1442 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1443 return mono_string_to_ansibstr;
1444 case MONO_MARSHAL_CONV_SB_LPSTR:
1445 return mono_string_builder_to_utf8;
1446 case MONO_MARSHAL_CONV_SB_LPTSTR:
1447 #ifdef TARGET_WIN32
1448 return mono_string_builder_to_utf16;
1449 #else
1450 return mono_string_builder_to_utf8;
1451 #endif
1452 case MONO_MARSHAL_CONV_SB_LPWSTR:
1453 return mono_string_builder_to_utf16;
1454 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1455 return mono_array_to_savearray;
1456 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1457 return mono_array_to_lparray;
1458 case MONO_MARSHAL_FREE_LPARRAY:
1459 return mono_free_lparray;
1460 case MONO_MARSHAL_CONV_DEL_FTN:
1461 return mono_delegate_to_ftnptr;
1462 case MONO_MARSHAL_CONV_FTN_DEL:
1463 return mono_ftnptr_to_delegate;
1464 case MONO_MARSHAL_CONV_LPSTR_SB:
1465 return mono_string_utf8_to_builder;
1466 case MONO_MARSHAL_CONV_LPTSTR_SB:
1467 #ifdef TARGET_WIN32
1468 return mono_string_utf16_to_builder;
1469 #else
1470 return mono_string_utf8_to_builder;
1471 #endif
1472 case MONO_MARSHAL_CONV_LPWSTR_SB:
1473 return mono_string_utf16_to_builder;
1474 case MONO_MARSHAL_FREE_ARRAY:
1475 return mono_marshal_free_array;
1476 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1477 return mono_string_to_byvalstr;
1478 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1479 return mono_string_to_byvalwstr;
1480 default:
1481 g_assert_not_reached ();
1482 }
1483
1484 return NULL;
1485 }
1486
1487 static void
1488 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1489 {
1490 int pos;
1491
1492 switch (conv) {
1493 case MONO_MARSHAL_CONV_BOOL_I4:
1494 mono_mb_emit_ldloc (mb, 1);
1495 mono_mb_emit_ldloc (mb, 0);
1496 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1497 mono_mb_emit_byte (mb, CEE_STIND_I4);
1498 break;
1499 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1500 mono_mb_emit_ldloc (mb, 1);
1501 mono_mb_emit_ldloc (mb, 0);
1502 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1503 mono_mb_emit_byte (mb, CEE_NEG);
1504 mono_mb_emit_byte (mb, CEE_STIND_I2);
1505 break;
1506 case MONO_MARSHAL_CONV_STR_LPWSTR:
1507 case MONO_MARSHAL_CONV_STR_LPSTR:
1508 case MONO_MARSHAL_CONV_STR_LPTSTR:
1509 case MONO_MARSHAL_CONV_STR_BSTR:
1510 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1511 case MONO_MARSHAL_CONV_STR_TBSTR: {
1512 int pos;
1513
1514 /* free space if free == true */
1515 mono_mb_emit_ldloc (mb, 2);
1516 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1517 mono_mb_emit_ldloc (mb, 1);
1518 mono_mb_emit_byte (mb, CEE_LDIND_I);
1519 mono_mb_emit_icall (mb, g_free);
1520 mono_mb_patch_short_branch (mb, pos);
1521
1522 mono_mb_emit_ldloc (mb, 1);
1523 mono_mb_emit_ldloc (mb, 0);
1524 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1525 mono_mb_emit_icall (mb, conv_to_icall (conv));
1526 mono_mb_emit_byte (mb, CEE_STIND_I);
1527 break;
1528 }
1529 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1530 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1531 case MONO_MARSHAL_CONV_DEL_FTN:
1532 mono_mb_emit_ldloc (mb, 1);
1533 mono_mb_emit_ldloc (mb, 0);
1534 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1535 mono_mb_emit_icall (mb, conv_to_icall (conv));
1536 mono_mb_emit_byte (mb, CEE_STIND_I);
1537 break;
1538 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1539 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1540 g_assert (mspec);
1541
1542 mono_mb_emit_ldloc (mb, 1); /* dst */
1543 mono_mb_emit_ldloc (mb, 0);
1544 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1545 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1546 mono_mb_emit_icall (mb, conv_to_icall (conv));
1547 break;
1548 }
1549 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1550 MonoClass *eklass = NULL;
1551 int esize;
1552
1553 if (type->type == MONO_TYPE_SZARRAY) {
1554 eklass = type->data.klass;
1555 } else {
1556 g_assert_not_reached ();
1557 }
1558
1559 if (eklass->valuetype)
1560 esize = mono_class_native_size (eklass, NULL);
1561 else
1562 esize = sizeof (gpointer);
1563
1564 mono_mb_emit_ldloc (mb, 0);
1565 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1566 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1567
1568 if (eklass->blittable) {
1569 mono_mb_emit_ldloc (mb, 1);
1570 mono_mb_emit_ldloc (mb, 0);
1571 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1572 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1573 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1574 mono_mb_emit_byte (mb, CEE_PREFIX1);
1575 mono_mb_emit_byte (mb, CEE_CPBLK);
1576 } else {
1577 int array_var, src_var, dst_var, index_var;
1578 guint32 label2, label3;
1579
1580 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1581 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1582 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1583
1584 /* set array_var */
1585 mono_mb_emit_ldloc (mb, 0);
1586 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1587 mono_mb_emit_stloc (mb, array_var);
1588
1589 /* save the old src pointer */
1590 mono_mb_emit_ldloc (mb, 0);
1591 mono_mb_emit_stloc (mb, src_var);
1592 /* save the old dst pointer */
1593 mono_mb_emit_ldloc (mb, 1);
1594 mono_mb_emit_stloc (mb, dst_var);
1595
1596 /* Emit marshalling loop */
1597 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1598 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1599 mono_mb_emit_stloc (mb, index_var);
1600
1601 /* Loop header */
1602 label2 = mono_mb_get_label (mb);
1603 mono_mb_emit_ldloc (mb, index_var);
1604 mono_mb_emit_ldloc (mb, array_var);
1605 mono_mb_emit_byte (mb, CEE_LDLEN);
1606 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1607
1608 /* Set src */
1609 mono_mb_emit_ldloc (mb, array_var);
1610 mono_mb_emit_ldloc (mb, index_var);
1611 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1612 mono_mb_emit_stloc (mb, 0);
1613
1614 /* dst is already set */
1615
1616 /* Do the conversion */
1617 emit_struct_conv (mb, eklass, FALSE);
1618
1619 /* Loop footer */
1620 mono_mb_emit_add_to_local (mb, index_var, 1);
1621
1622 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1623
1624 mono_mb_patch_branch (mb, label3);
1625
1626 /* restore the old src pointer */
1627 mono_mb_emit_ldloc (mb, src_var);
1628 mono_mb_emit_stloc (mb, 0);
1629 /* restore the old dst pointer */
1630 mono_mb_emit_ldloc (mb, dst_var);
1631 mono_mb_emit_stloc (mb, 1);
1632 }
1633
1634 mono_mb_patch_branch (mb, pos);
1635 break;
1636 }
1637 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1638 mono_mb_emit_ldloc (mb, 0);
1639 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1640 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1641
1642 mono_mb_emit_ldloc (mb, 1);
1643 mono_mb_emit_ldloc (mb, 0);
1644 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1645 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1646 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1647 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1648 mono_mb_patch_short_branch (mb, pos);
1649 break;
1650 }
1651 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1652 int src_var, dst_var;
1653
1654 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1655 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1656
1657 mono_mb_emit_ldloc (mb, 0);
1658 mono_mb_emit_byte (mb, CEE_LDIND_I);
1659 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1660
1661 /* save the old src pointer */
1662 mono_mb_emit_ldloc (mb, 0);
1663 mono_mb_emit_stloc (mb, src_var);
1664 /* save the old dst pointer */
1665 mono_mb_emit_ldloc (mb, 1);
1666 mono_mb_emit_stloc (mb, dst_var);
1667
1668 /* src = pointer to object data */
1669 mono_mb_emit_ldloc (mb, 0);
1670 mono_mb_emit_byte (mb, CEE_LDIND_I);
1671 mono_mb_emit_icon (mb, sizeof (MonoObject));
1672 mono_mb_emit_byte (mb, CEE_ADD);
1673 mono_mb_emit_stloc (mb, 0);
1674
1675 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1676
1677 /* restore the old src pointer */
1678 mono_mb_emit_ldloc (mb, src_var);
1679 mono_mb_emit_stloc (mb, 0);
1680 /* restore the old dst pointer */
1681 mono_mb_emit_ldloc (mb, dst_var);
1682 mono_mb_emit_stloc (mb, 1);
1683
1684 mono_mb_patch_branch (mb, pos);
1685 break;
1686 }
1687
1688 #ifndef DISABLE_COM
1689 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1690 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1691 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1692 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1693 break;
1694 #endif /* DISABLE_COM */
1695
1696 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1697 int dar_release_slot, pos;
1698
1699 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1700
1701 /*
1702 * The following is ifdefed-out, because I have no way of doing the
1703 * DangerousRelease when destroying the structure
1704 */
1705 #if 0
1706 /* set release = false */
1707 mono_mb_emit_icon (mb, 0);
1708 mono_mb_emit_stloc (mb, dar_release_slot);
1709 if (!sh_dangerous_add_ref)
1710 init_safe_handle ();
1711
1712 /* safehandle.DangerousAddRef (ref release) */
1713 mono_mb_emit_ldloc (mb, 0); /* the source */
1714 mono_mb_emit_byte (mb, CEE_LDIND_I);
1715 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1716 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1717 #endif
1718 mono_mb_emit_ldloc (mb, 0);
1719 mono_mb_emit_byte (mb, CEE_LDIND_I);
1720 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1721 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1722 mono_mb_patch_branch (mb, pos);
1723
1724 /* Pull the handle field from SafeHandle */
1725 mono_mb_emit_ldloc (mb, 1);
1726 mono_mb_emit_ldloc (mb, 0);
1727 mono_mb_emit_byte (mb, CEE_LDIND_I);
1728 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
1729 mono_mb_emit_byte (mb, CEE_LDIND_I);
1730 mono_mb_emit_byte (mb, CEE_STIND_I);
1731 break;
1732 }
1733
1734 case MONO_MARSHAL_CONV_HANDLEREF: {
1735 mono_mb_emit_ldloc (mb, 1);
1736 mono_mb_emit_ldloc (mb, 0);
1737 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
1738 mono_mb_emit_byte (mb, CEE_ADD);
1739 mono_mb_emit_byte (mb, CEE_LDIND_I);
1740 mono_mb_emit_byte (mb, CEE_STIND_I);
1741 break;
1742 }
1743
1744 default: {
1745 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1746 MonoException *exc = mono_get_exception_not_implemented (msg);
1747 g_warning ("%s", msg);
1748 g_free (msg);
1749 mono_raise_exception (exc);
1750 }
1751 }
1752 }
1753
1754 static void
1755 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1756 {
1757 MonoMarshalType *info;
1758 int i;
1759
1760 if (klass->parent)
1761 emit_struct_conv(mb, klass->parent, to_object);
1762
1763 info = mono_marshal_load_type_info (klass);
1764
1765 if (info->native_size == 0)
1766 return;
1767
1768 if (klass->blittable) {
1769 int msize = mono_class_value_size (klass, NULL);
1770 g_assert (msize == info->native_size);
1771 mono_mb_emit_ldloc (mb, 1);
1772 mono_mb_emit_ldloc (mb, 0);
1773 mono_mb_emit_icon (mb, msize);
1774 mono_mb_emit_byte (mb, CEE_PREFIX1);
1775 mono_mb_emit_byte (mb, CEE_CPBLK);
1776
1777 mono_mb_emit_add_to_local (mb, 0, msize);
1778 mono_mb_emit_add_to_local (mb, 1, msize);
1779 return;
1780 }
1781
1782 if (klass != mono_defaults.safehandle_class) {
1783 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1784 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1785 mono_type_full_name (&klass->byval_arg));
1786 mono_mb_emit_exception_marshal_directive (mb, msg);
1787 return;
1788 }
1789 }
1790
1791 for (i = 0; i < info->num_fields; i++) {
1792 MonoMarshalNative ntype;
1793 MonoMarshalConv conv;
1794 MonoType *ftype = info->fields [i].field->type;
1795 int msize = 0;
1796 int usize = 0;
1797 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1798
1799 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1800 continue;
1801
1802 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1803
1804 if (last_field) {
1805 msize = klass->instance_size - info->fields [i].field->offset;
1806 usize = info->native_size - info->fields [i].offset;
1807 } else {
1808 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1809 usize = info->fields [i + 1].offset - info->fields [i].offset;
1810 }
1811
1812 if (klass != mono_defaults.safehandle_class){
1813 /*
1814 * FIXME: Should really check for usize==0 and msize>0, but we apply
1815 * the layout to the managed structure as well.
1816 */
1817
1818 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1819 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1820 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1821 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1822 "reference field at the same offset as another field.",
1823 mono_type_full_name (&klass->byval_arg));
1824 }
1825 }
1826
1827 switch (conv) {
1828 case MONO_MARSHAL_CONV_NONE: {
1829 int t;
1830
1831 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1832 ftype->type == MONO_TYPE_U) {
1833 mono_mb_emit_ldloc (mb, 1);
1834 mono_mb_emit_ldloc (mb, 0);
1835 mono_mb_emit_byte (mb, CEE_LDIND_I);
1836 mono_mb_emit_byte (mb, CEE_STIND_I);
1837 break;
1838 }
1839
1840 handle_enum:
1841 t = ftype->type;
1842 switch (t) {
1843 case MONO_TYPE_I4:
1844 case MONO_TYPE_U4:
1845 case MONO_TYPE_I1:
1846 case MONO_TYPE_U1:
1847 case MONO_TYPE_BOOLEAN:
1848 case MONO_TYPE_I2:
1849 case MONO_TYPE_U2:
1850 case MONO_TYPE_CHAR:
1851 case MONO_TYPE_I8:
1852 case MONO_TYPE_U8:
1853 case MONO_TYPE_PTR:
1854 case MONO_TYPE_R4:
1855 case MONO_TYPE_R8:
1856 mono_mb_emit_ldloc (mb, 1);
1857 mono_mb_emit_ldloc (mb, 0);
1858 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1859 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1860 break;
1861 case MONO_TYPE_VALUETYPE: {
1862 int src_var, dst_var;
1863
1864 if (ftype->data.klass->enumtype) {
1865 ftype = mono_class_enum_basetype (ftype->data.klass);
1866 goto handle_enum;
1867 }
1868
1869 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1870 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1871
1872 /* save the old src pointer */
1873 mono_mb_emit_ldloc (mb, 0);
1874 mono_mb_emit_stloc (mb, src_var);
1875 /* save the old dst pointer */
1876 mono_mb_emit_ldloc (mb, 1);
1877 mono_mb_emit_stloc (mb, dst_var);
1878
1879 emit_struct_conv (mb, ftype->data.klass, to_object);
1880
1881 /* restore the old src pointer */
1882 mono_mb_emit_ldloc (mb, src_var);
1883 mono_mb_emit_stloc (mb, 0);
1884 /* restore the old dst pointer */
1885 mono_mb_emit_ldloc (mb, dst_var);
1886 mono_mb_emit_stloc (mb, 1);
1887 break;
1888 }
1889 case MONO_TYPE_OBJECT: {
1890 mono_init_com_types ();
1891 if (to_object) {
1892 static MonoMethod *variant_clear = NULL;
1893 static MonoMethod *get_object_for_native_variant = NULL;
1894
1895 if (!variant_clear)
1896 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
1897 if (!get_object_for_native_variant)
1898 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1899 mono_mb_emit_ldloc (mb, 1);
1900 mono_mb_emit_ldloc (mb, 0);
1901 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1902 mono_mb_emit_byte (mb, CEE_STIND_REF);
1903
1904 mono_mb_emit_ldloc (mb, 0);
1905 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1906 }
1907 else {
1908 static MonoMethod *get_native_variant_for_object = NULL;
1909
1910 if (!get_native_variant_for_object)
1911 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1912
1913 mono_mb_emit_ldloc (mb, 0);
1914 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1915 mono_mb_emit_ldloc (mb, 1);
1916 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1917 }
1918 break;
1919 }
1920
1921 default:
1922 g_warning ("marshaling type %02x not implemented", ftype->type);
1923 g_assert_not_reached ();
1924 }
1925 break;
1926 }
1927 default: {
1928 int src_var, dst_var;
1929
1930 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1931 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1932
1933 /* save the old src pointer */
1934 mono_mb_emit_ldloc (mb, 0);
1935 mono_mb_emit_stloc (mb, src_var);
1936 /* save the old dst pointer */
1937 mono_mb_emit_ldloc (mb, 1);
1938 mono_mb_emit_stloc (mb, dst_var);
1939
1940 if (to_object)
1941 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1942 else
1943 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1944
1945 /* restore the old src pointer */
1946 mono_mb_emit_ldloc (mb, src_var);
1947 mono_mb_emit_stloc (mb, 0);
1948 /* restore the old dst pointer */
1949 mono_mb_emit_ldloc (mb, dst_var);
1950 mono_mb_emit_stloc (mb, 1);
1951 }
1952 }
1953
1954 if (to_object) {
1955 mono_mb_emit_add_to_local (mb, 0, usize);
1956 mono_mb_emit_add_to_local (mb, 1, msize);
1957 } else {
1958 mono_mb_emit_add_to_local (mb, 0, msize);
1959 mono_mb_emit_add_to_local (mb, 1, usize);
1960 }
1961 }
1962 }
1963
1964 static void
1965 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1966 {
1967 /* Call DestroyStructure */
1968 /* FIXME: Only do this if needed */
1969 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1970 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1971 mono_mb_emit_ldloc (mb, struct_var);
1972 mono_mb_emit_icall (mb, mono_struct_delete_old);
1973 }
1974
1975 static void
1976 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
1977 {
1978 int pos_noabort;
1979
1980 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
1981 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1982 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1983
1984 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1985 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
1986
1987 mono_mb_emit_icall (mb, checkpoint_func);
1988
1989 mono_mb_patch_branch (mb, pos_noabort);
1990 }
1991
1992 static void
1993 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1994 {
1995 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
1996 return;
1997
1998 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
1999 }
2000
2001 static void
2002 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2003 {
2004 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2005 }
2006
2007 void
2008 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2009 {
2010 emit_thread_interrupt_checkpoint (mb);
2011 }
2012
2013 static MonoAsyncResult *
2014 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2015 {
2016 MonoMethodMessage *msg;
2017 MonoDelegate *async_callback;
2018 MonoMulticastDelegate *mcast_delegate;
2019 MonoObject *state;
2020 MonoMethod *im;
2021 MonoClass *klass;
2022 MonoMethod *method = NULL, *method2 = NULL;
2023
2024 g_assert (delegate);
2025 mcast_delegate = (MonoMulticastDelegate *) delegate;
2026 if (mcast_delegate->prev != NULL)
2027 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2028
2029 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2030
2031 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2032 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2033
2034 /* If the target is a proxy, make a direct call. Is proxy's work
2035 // to make the call asynchronous.
2036 */
2037 MonoAsyncResult *ares;
2038 MonoObject *exc;
2039 MonoArray *out_args;
2040 method = delegate->method;
2041
2042 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2043 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2044 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2045 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2046 MONO_OBJECT_SETREF (msg, async_result, ares);
2047 msg->call_type = CallType_BeginInvoke;
2048
2049 exc = NULL;
2050 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2051 if (exc)
2052 mono_raise_exception ((MonoException *) exc);
2053 return ares;
2054 }
2055 }
2056
2057 klass = delegate->object.vtable->klass;
2058
2059 method = mono_get_delegate_invoke (klass);
2060 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2061 if (method2)
2062 method = method2;
2063 g_assert (method != NULL);
2064
2065 im = mono_get_delegate_invoke (method->klass);
2066 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2067
2068 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2069 }
2070
2071 static int
2072 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2073 {
2074 int i, params_var, tmp_var;
2075
2076 /* allocate local (pointer) *params[] */
2077 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2078 /* allocate local (pointer) tmp */
2079 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2080
2081 /* alloate space on stack to store an array of pointers to the arguments */
2082 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2083 mono_mb_emit_byte (mb, CEE_PREFIX1);
2084 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2085 mono_mb_emit_stloc (mb, params_var);
2086
2087 /* tmp = params */
2088 mono_mb_emit_ldloc (mb, params_var);
2089 mono_mb_emit_stloc (mb, tmp_var);
2090
2091 if (save_this && sig->hasthis) {
2092 mono_mb_emit_ldloc (mb, tmp_var);
2093 mono_mb_emit_ldarg_addr (mb, 0);
2094 mono_mb_emit_byte (mb, CEE_STIND_I);
2095 /* tmp = tmp + sizeof (gpointer) */
2096 if (sig->param_count)
2097 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2098
2099 }
2100
2101 for (i = 0; i < sig->param_count; i++) {
2102 mono_mb_emit_ldloc (mb, tmp_var);
2103 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2104 mono_mb_emit_byte (mb, CEE_STIND_I);
2105 /* tmp = tmp + sizeof (gpointer) */
2106 if (i < (sig->param_count - 1))
2107 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2108 }
2109
2110 return params_var;
2111 }
2112
2113 static char*
2114 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2115 {
2116 int i;
2117 char *result;
2118 GString *res = g_string_new ("");
2119
2120 if (prefix) {
2121 g_string_append (res, prefix);
2122 g_string_append_c (res, '_');
2123 }
2124
2125 mono_type_get_desc (res, sig->ret, FALSE);
2126
2127 if (sig->hasthis)
2128 g_string_append (res, "__this__");
2129
2130 for (i = 0; i < sig->param_count; ++i) {
2131 g_string_append_c (res, '_');
2132 mono_type_get_desc (res, sig->params [i], FALSE);
2133 }
2134 result = res->str;
2135 g_string_free (res, FALSE);
2136 return result;
2137 }
2138
2139 /**
2140 * mono_marshal_get_string_encoding:
2141 *
2142 * Return the string encoding which should be used for a given parameter.
2143 */
2144 static MonoMarshalNative
2145 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2146 {
2147 /* First try the parameter marshal info */
2148 if (spec) {
2149 if (spec->native == MONO_NATIVE_LPARRAY) {
2150 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2151 return spec->data.array_data.elem_type;
2152 }
2153 else
2154 return spec->native;
2155 }
2156
2157 if (!piinfo)
2158 return MONO_NATIVE_LPSTR;
2159
2160 /* Then try the method level marshal info */
2161 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2162 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2163 return MONO_NATIVE_LPSTR;
2164 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2165 return MONO_NATIVE_LPWSTR;
2166 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2167 #ifdef TARGET_WIN32
2168 return MONO_NATIVE_LPWSTR;
2169 #else
2170 return MONO_NATIVE_LPSTR;
2171 #endif
2172 default:
2173 return MONO_NATIVE_LPSTR;
2174 }
2175 }
2176
2177 static MonoMarshalConv
2178 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2179 {
2180 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2181
2182 switch (encoding) {
2183 case MONO_NATIVE_LPWSTR:
2184 return MONO_MARSHAL_CONV_STR_LPWSTR;
2185 case MONO_NATIVE_LPSTR:
2186 return MONO_MARSHAL_CONV_STR_LPSTR;
2187 case MONO_NATIVE_LPTSTR:
2188 return MONO_MARSHAL_CONV_STR_LPTSTR;
2189 case MONO_NATIVE_BSTR:
2190 return MONO_MARSHAL_CONV_STR_BSTR;
2191 default:
2192 return -1;
2193 }
2194 }
2195
2196 static MonoMarshalConv
2197 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2198 {
2199 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2200
2201 switch (encoding) {
2202 case MONO_NATIVE_LPWSTR:
2203 return MONO_MARSHAL_CONV_SB_LPWSTR;
2204 break;
2205 case MONO_NATIVE_LPSTR:
2206 return MONO_MARSHAL_CONV_SB_LPSTR;
2207 break;
2208 case MONO_NATIVE_LPTSTR:
2209 return MONO_MARSHAL_CONV_SB_LPTSTR;
2210 break;
2211 default:
2212 return -1;
2213 }
2214 }
2215
2216 static MonoMarshalConv
2217 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2218 {
2219 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2220
2221 *need_free = TRUE;
2222
2223 switch (encoding) {
2224 case MONO_NATIVE_LPWSTR:
2225 *need_free = FALSE;
2226 return MONO_MARSHAL_CONV_LPWSTR_STR;
2227 case MONO_NATIVE_LPSTR:
2228 return MONO_MARSHAL_CONV_LPSTR_STR;
2229 case MONO_NATIVE_LPTSTR:
2230 return MONO_MARSHAL_CONV_LPTSTR_STR;
2231 case MONO_NATIVE_BSTR:
2232 return MONO_MARSHAL_CONV_BSTR_STR;
2233 default:
2234 return -1;
2235 }
2236 }
2237
2238 static MonoMarshalConv
2239 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2240 {
2241 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2242
2243 *need_free = TRUE;
2244
2245 switch (encoding) {
2246 case MONO_NATIVE_LPWSTR:
2247 /*
2248 * mono_string_builder_to_utf16 does not allocate a
2249 * new buffer, so no need to free it.
2250 */
2251 *need_free = FALSE;
2252 return MONO_MARSHAL_CONV_LPWSTR_SB;
2253 case MONO_NATIVE_LPSTR:
2254 return MONO_MARSHAL_CONV_LPSTR_SB;
2255 break;
2256 case MONO_NATIVE_LPTSTR:
2257 return MONO_MARSHAL_CONV_LPTSTR_SB;
2258 break;
2259 default:
2260 return -1;
2261 }
2262 }
2263
2264 /*
2265 * Return whenever a field of a native structure or an array member needs to
2266 * be freed.
2267 */
2268 static gboolean
2269 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2270 {
2271 MonoMarshalNative encoding;
2272 MonoMarshalConv conv;
2273
2274 switch (t->type) {
2275 case MONO_TYPE_VALUETYPE:
2276 /* FIXME: Optimize this */
2277 return TRUE;
2278 case MONO_TYPE_OBJECT:
2279 case MONO_TYPE_CLASS:
2280 if (t->data.klass == mono_defaults.stringbuilder_class) {
2281 gboolean need_free;
2282 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2283 return need_free;
2284 }
2285 return FALSE;
2286 case MONO_TYPE_STRING:
2287 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2288 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2289 default:
2290 return FALSE;
2291 }
2292 }
2293
2294 /*
2295 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2296 */
2297 static GHashTable*
2298 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2299 {
2300 if (!(*var)) {
2301 mono_marshal_lock ();
2302 if (!(*var)) {
2303 GHashTable *cache =
2304 g_hash_table_new (hash_func, equal_func);
2305 mono_memory_barrier ();
2306 *var = cache;
2307 }
2308 mono_marshal_unlock ();
2309 }
2310 return *var;
2311 }
2312
2313 GHashTable*
2314 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2315 {
2316 return get_cache (var, hash_func, equal_func);
2317 }
2318
2319 MonoMethod*
2320 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2321 {
2322 MonoMethod *res;
2323
2324 mono_marshal_lock ();
2325 res = g_hash_table_lookup (cache, key);
2326 mono_marshal_unlock ();
2327 return res;
2328 }
2329
2330 /* Create the method from the builder and place it in the cache */
2331 MonoMethod*
2332 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2333 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2334 int max_stack)
2335 {
2336 MonoMethod *res;
2337
2338 mono_marshal_lock ();
2339 res = g_hash_table_lookup (cache, key);
2340 mono_marshal_unlock ();
2341 if (!res) {
2342 MonoMethod *newm;
2343 newm = mono_mb_create_method (mb, sig, max_stack);
2344 mono_marshal_lock ();
2345 res = g_hash_table_lookup (cache, key);
2346 if (!res) {
2347 res = newm;
2348 g_hash_table_insert (cache, key, res);
2349 mono_marshal_set_wrapper_info (res, key);
2350 mono_marshal_unlock ();
2351 } else {
2352 mono_marshal_unlock ();
2353 mono_free_method (newm);
2354 }
2355 }
2356
2357 return res;
2358 }
2359
2360
2361 static inline MonoMethod*
2362 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2363 {
2364 MonoMethod *res = NULL;
2365 MonoRemotingMethods *wrps;
2366
2367 mono_marshal_lock ();
2368 if (method->klass->image->remoting_invoke_cache)
2369 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2370 else
2371 wrps = NULL;
2372
2373 if (wrps) {
2374 switch (wrapper_type) {
2375 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2376 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2377 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2378 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2379 }
2380 }
2381
2382 /* it is important to do the unlock after the load from wrps, since in
2383 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2384 * to take the loader lock and some other thread may set the fields.
2385 */
2386 mono_marshal_unlock ();
2387 return res;
2388 }
2389
2390 /* Create the method from the builder and place it in the cache */
2391 static inline MonoMethod*
2392 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2393 MonoMethodSignature *sig, int max_stack)
2394 {
2395 MonoMethod **res = NULL;
2396 MonoRemotingMethods *wrps;
2397 GHashTable *cache = get_cache (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL);
2398
2399 mono_marshal_lock ();
2400 wrps = g_hash_table_lookup (cache, key);
2401 if (!wrps) {
2402 wrps = g_new0 (MonoRemotingMethods, 1);
2403 g_hash_table_insert (cache, key, wrps);
2404 }
2405
2406 switch (mb->method->wrapper_type) {
2407 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2408 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2409 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2410 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2411 default: g_assert_not_reached (); break;
2412 }
2413 mono_marshal_unlock ();
2414
2415 if (*res == NULL) {
2416 MonoMethod *newm;
2417 newm = mono_mb_create_method (mb, sig, max_stack);
2418
2419 mono_marshal_lock ();
2420 if (!*res) {
2421 *res = newm;
2422 mono_marshal_set_wrapper_info (*res, key);
2423 mono_marshal_unlock ();
2424 } else {
2425 mono_marshal_unlock ();
2426 mono_free_method (newm);
2427 }
2428 }
2429
2430 return *res;
2431 }
2432
2433 MonoMethod *
2434 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2435 {
2436 gpointer res;
2437
2438 if (wrapper->wrapper_type == MONO_WRAPPER_NONE || wrapper->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2439 return wrapper;
2440
2441 res = mono_method_get_wrapper_data (wrapper, 1);
2442 if (res == NULL)
2443 return wrapper;
2444 return res;
2445 }
2446
2447 /*
2448 * mono_marshal_get_wrapper_info:
2449 *
2450 * Retrieve the pointer stored by mono_marshal_set_wrapper_info.
2451 */
2452 gpointer
2453 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2454 {
2455 g_assert (wrapper->wrapper_type);
2456
2457 return mono_method_get_wrapper_data (wrapper, 1);
2458 }
2459
2460 /*
2461 * mono_marshal_set_wrapper_info:
2462 *
2463 * Store an arbitrary pointer inside the wrapper which is retrievable by
2464 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2465 * wrapper (method->wrapper_type).
2466 */
2467 void
2468 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2469 {
2470 void **datav;
2471 /* assert */
2472 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2473 return;
2474
2475 datav = ((MonoMethodWrapper *)method)->method_data;
2476 datav [1] = data;
2477 }
2478
2479 /*
2480 * get_wrapper_target_class:
2481 *
2482 * Return the class where a wrapper method should be placed.
2483 */
2484 static MonoClass*
2485 get_wrapper_target_class (MonoImage *image)
2486 {
2487 MonoClass *klass;
2488
2489 /*
2490 * Notes:
2491 * - can't put all wrappers into an mscorlib class, because they reference
2492 * metadata (signature) so they should be put into the same image as the
2493 * method they wrap, so they are unloaded together.
2494 * - putting them into a class with a type initalizer could cause the
2495 * initializer to be executed which can be a problem if the wrappers are
2496 * shared.
2497 * - putting them into an inflated class can cause problems if the the
2498 * class is deleted because it references an image which is unloaded.
2499 * To avoid these problems, we put the wrappers into the <Module> class of
2500 * the image.
2501 */
2502 if (image->dynamic)
2503 klass = ((MonoDynamicImage*)image)->wrappers_type;
2504 else
2505 klass = mono_class_get (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1));
2506 g_assert (klass);
2507
2508 return klass;
2509 }
2510
2511 MonoMethod *
2512 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2513 {
2514 MonoMethodSignature *sig;
2515 MonoMethodBuilder *mb;
2516 MonoMethod *res;
2517 GHashTable *cache;
2518 int params_var;
2519 char *name;
2520
2521 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2522 !strcmp (method->name, "BeginInvoke"));
2523
2524 sig = mono_signature_no_pinvoke (method);
2525
2526 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2527 (GHashFunc)mono_signature_hash,
2528 (GCompareFunc)mono_metadata_signature_equal);
2529 if ((res = mono_marshal_find_in_cache (cache, sig)))
2530 return res;
2531
2532 g_assert (sig->hasthis);
2533
2534 name = mono_signature_to_name (sig, "begin_invoke");
2535 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2536 g_free (name);
2537
2538 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2539
2540 mono_mb_emit_ldarg (mb, 0);
2541 mono_mb_emit_ldloc (mb, params_var);
2542 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2543 mono_mb_emit_byte (mb, CEE_RET);
2544
2545 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2546 mono_mb_free (mb);
2547 return res;
2548 }
2549
2550 static MonoObject *
2551 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2552 {
2553 MonoDomain *domain = mono_domain_get ();
2554 MonoAsyncResult *ares;
2555 MonoMethod *method = NULL;
2556 MonoMethodSignature *sig;
2557 MonoMethodMessage *msg;
2558 MonoObject *res, *exc;
2559 MonoArray *out_args;
2560 MonoClass *klass;
2561
2562 g_assert (delegate);
2563
2564 if (!delegate->method_info) {
2565 g_assert (delegate->method);
2566 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2567 }
2568
2569 if (!delegate->method_info || !delegate->method_info->method)
2570 g_assert_not_reached ();
2571
2572 klass = delegate->object.vtable->klass;
2573
2574 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2575 g_assert (method != NULL);
2576
2577 sig = mono_signature_no_pinvoke (method);
2578
2579 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2580
2581 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2582 if (ares == NULL) {
2583 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."));
2584 return NULL;
2585 }
2586
2587 if (ares->async_delegate != (MonoObject*)delegate) {
2588 mono_raise_exception (mono_get_exception_invalid_operation (
2589 "The IAsyncResult object provided does not match this delegate."));
2590 return NULL;
2591 }
2592
2593 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2594 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2595 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2596 mono_message_init (domain, msg, delegate->method_info, NULL);
2597 msg->call_type = CallType_EndInvoke;
2598 MONO_OBJECT_SETREF (msg, async_result, ares);
2599 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2600 } else {
2601 res = mono_thread_pool_finish (ares, &out_args, &exc);
2602 }
2603
2604 if (exc) {
2605 if (((MonoException*)exc)->stack_trace) {
2606 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2607 char *tmp;
2608 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2609 g_free (strace);
2610 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2611 g_free (tmp);
2612 }
2613 mono_raise_exception ((MonoException*)exc);
2614 }
2615
2616 mono_method_return_message_restore (method, params, out_args);
2617 return res;
2618 }
2619
2620 static void
2621 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2622 {
2623 MonoType *t = mono_type_get_underlying_type (return_type);
2624
2625 if (return_type->byref)
2626 return_type = &mono_defaults.int_class->byval_arg;
2627
2628 switch (t->type) {
2629 case MONO_TYPE_VOID:
2630 g_assert_not_reached ();
2631 break;
2632 case MONO_TYPE_PTR:
2633 case MONO_TYPE_STRING:
2634 case MONO_TYPE_CLASS:
2635 case MONO_TYPE_OBJECT:
2636 case MONO_TYPE_ARRAY:
2637 case MONO_TYPE_SZARRAY:
2638 /* nothing to do */
2639 break;
2640 case MONO_TYPE_U1:
2641 case MONO_TYPE_BOOLEAN:
2642 case MONO_TYPE_I1:
2643 case MONO_TYPE_U2:
2644 case MONO_TYPE_CHAR:
2645 case MONO_TYPE_I2:
2646 case MONO_TYPE_I:
2647 case MONO_TYPE_U:
2648 case MONO_TYPE_I4:
2649 case MONO_TYPE_U4:
2650 case MONO_TYPE_U8:
2651 case MONO_TYPE_I8:
2652 case MONO_TYPE_R4:
2653 case MONO_TYPE_R8:
2654 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2655 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2656 break;
2657 case MONO_TYPE_GENERICINST:
2658 if (!mono_type_generic_inst_is_valuetype (t))
2659 break;
2660 /* fall through */
2661 case MONO_TYPE_VALUETYPE: {
2662 MonoClass *klass = mono_class_from_mono_type (return_type);
2663 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2664 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2665 break;
2666 }
2667 default:
2668 g_warning ("type 0x%x not handled", return_type->type);
2669 g_assert_not_reached ();
2670 }
2671
2672 mono_mb_emit_byte (mb, CEE_RET);
2673 }
2674
2675 MonoMethod *
2676 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2677 {
2678 MonoMethodSignature *sig;
2679 MonoMethodBuilder *mb;
2680 MonoMethod *res;
2681 GHashTable *cache;
2682 int params_var;
2683 char *name;
2684
2685 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2686 !strcmp (method->name, "EndInvoke"));
2687
2688 sig = mono_signature_no_pinvoke (method);
2689
2690 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2691 (GHashFunc)mono_signature_hash,
2692 (GCompareFunc)mono_metadata_signature_equal);
2693 if ((res = mono_marshal_find_in_cache (cache, sig)))
2694 return res;
2695
2696 g_assert (sig->hasthis);
2697
2698 name = mono_signature_to_name (sig, "end_invoke");
2699 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2700 g_free (name);
2701
2702 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2703
2704 mono_mb_emit_ldarg (mb, 0);
2705 mono_mb_emit_ldloc (mb, params_var);
2706 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2707
2708 if (sig->ret->type == MONO_TYPE_VOID) {
2709 mono_mb_emit_byte (mb, CEE_POP);
2710 mono_mb_emit_byte (mb, CEE_RET);
2711 } else
2712 mono_mb_emit_restore_result (mb, sig->ret);
2713
2714 res = mono_mb_create_and_cache (cache, sig,
2715 mb, sig, sig->param_count + 16);
2716 mono_mb_free (mb);
2717
2718 return res;
2719 }
2720
2721 static MonoObject *
2722 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2723 {
2724 MonoMethodMessage *msg;
2725 MonoTransparentProxy *this;
2726 MonoObject *res, *exc;
2727 MonoArray *out_args;
2728
2729 this = *((MonoTransparentProxy **)params [0]);
2730
2731 g_assert (this);
2732 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2733
2734 /* skip the this pointer */
2735 params++;
2736
2737 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2738 {
2739 int i;
2740 MonoMethodSignature *sig = mono_method_signature (method);
2741 int count = sig->param_count;
2742 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2743
2744 for (i=0; i<count; i++) {
2745 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2746 if (class->valuetype) {
2747 if (sig->params [i]->byref) {
2748 mparams[i] = *((gpointer *)params [i]);
2749 } else {
2750 /* runtime_invoke expects a boxed instance */
2751 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
2752 mparams[i] = mono_nullable_box (params [i], class);
2753 else
2754 mparams[i] = params [i];
2755 }
2756 } else {
2757 mparams[i] = *((gpointer**)params [i]);
2758 }
2759 }
2760
2761 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2762 }
2763
2764 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2765
2766 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2767
2768 if (exc)
2769 mono_raise_exception ((MonoException *)exc);
2770
2771 mono_method_return_message_restore (method, params, out_args);
2772
2773 return res;
2774 }
2775
2776 MonoMethod *
2777 mono_marshal_get_remoting_invoke (MonoMethod *method)
2778 {
2779 MonoMethodSignature *sig;
2780 MonoMethodBuilder *mb;
2781 MonoMethod *res;
2782 int params_var;
2783
2784 g_assert (method);
2785
2786 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2787 return method;
2788
2789 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
2790 if (method->klass->is_com_object || method->klass == mono_defaults.com_object_class) {
2791 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
2792 g_assert (vtable); /*FIXME do proper error handling*/
2793
2794 if (!vtable->remote) {
2795 #ifndef DISABLE_COM
2796 return mono_cominterop_get_invoke (method);
2797 #else
2798 g_assert_not_reached ();
2799 #endif
2800 }
2801 }
2802
2803 sig = mono_signature_no_pinvoke (method);
2804
2805 /* we cant remote methods without this pointer */
2806 if (!sig->hasthis)
2807 return method;
2808
2809 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2810 return res;
2811
2812 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2813 mb->method->save_lmf = 1;
2814
2815 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2816
2817 mono_mb_emit_ptr (mb, method);
2818 mono_mb_emit_ldloc (mb, params_var);
2819 mono_mb_emit_icall (mb, mono_remoting_wrapper);
2820 emit_thread_interrupt_checkpoint (mb);
2821
2822 if (sig->ret->type == MONO_TYPE_VOID) {
2823 mono_mb_emit_byte (mb, CEE_POP);
2824 mono_mb_emit_byte (mb, CEE_RET);
2825 } else {
2826 mono_mb_emit_restore_result (mb, sig->ret);
2827 }
2828
2829 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2830 mono_mb_free (mb);
2831
2832 return res;
2833 }
2834
2835 /* mono_get_xdomain_marshal_type()
2836 * Returns the kind of marshalling that a type needs for cross domain calls.
2837 */
2838 static MonoXDomainMarshalType
2839 mono_get_xdomain_marshal_type (MonoType *t)
2840 {
2841 switch (t->type) {
2842 case MONO_TYPE_VOID:
2843 g_assert_not_reached ();
2844 break;
2845 case MONO_TYPE_U1:
2846 case MONO_TYPE_I1:
2847 case MONO_TYPE_BOOLEAN:
2848 case MONO_TYPE_U2:
2849 case MONO_TYPE_I2:
2850 case MONO_TYPE_CHAR:
2851 case MONO_TYPE_U4:
2852 case MONO_TYPE_I4:
2853 case MONO_TYPE_I8:
2854 case MONO_TYPE_U8:
2855 case MONO_TYPE_R4:
2856 case MONO_TYPE_R8:
2857 return MONO_MARSHAL_NONE;
2858 case MONO_TYPE_STRING:
2859 return MONO_MARSHAL_COPY;
2860 case MONO_TYPE_ARRAY:
2861 case MONO_TYPE_SZARRAY: {
2862 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
2863 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
2864 return MONO_MARSHAL_COPY;
2865 break;
2866 }
2867 }
2868
2869 return MONO_MARSHAL_SERIALIZE;
2870 }
2871
2872
2873 /* mono_marshal_xdomain_copy_value
2874 * Makes a copy of "val" suitable for the current domain.
2875 */
2876 MonoObject *
2877 mono_marshal_xdomain_copy_value (MonoObject *val)
2878 {
2879 MonoDomain *domain;
2880 if (val == NULL) return NULL;
2881
2882 domain = mono_domain_get ();
2883
2884 switch (mono_object_class (val)->byval_arg.type) {
2885 case MONO_TYPE_VOID:
2886 g_assert_not_reached ();
2887 break;
2888 case MONO_TYPE_U1:
2889 case MONO_TYPE_I1:
2890 case MONO_TYPE_BOOLEAN:
2891 case MONO_TYPE_U2:
2892 case MONO_TYPE_I2:
2893 case MONO_TYPE_CHAR:
2894 case MONO_TYPE_U4:
2895 case MONO_TYPE_I4:
2896 case MONO_TYPE_I8:
2897 case MONO_TYPE_U8:
2898 case MONO_TYPE_R4:
2899 case MONO_TYPE_R8: {
2900 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
2901 }
2902 case MONO_TYPE_STRING: {
2903 MonoString *str = (MonoString *) val;
2904 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
2905 }
2906 case MONO_TYPE_ARRAY:
2907 case MONO_TYPE_SZARRAY: {
2908 MonoArray *acopy;
2909 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
2910 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
2911 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
2912 if (mt == MONO_MARSHAL_COPY) {
2913 int i, len = mono_array_length (acopy);
2914 for (i = 0; i < len; i++) {
2915 MonoObject *item = mono_array_get (acopy, gpointer, i);
2916 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
2917 }
2918 }
2919 return (MonoObject *) acopy;
2920 }
2921 }
2922
2923 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
2924 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
2925 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
2926 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
2927 newsb->length = oldsb->length;
2928 newsb->max_capacity = (gint32)0x7fffffff;
2929 return (MonoObject *) newsb;
2930 }
2931 return NULL;
2932 }
2933
2934 /* mono_marshal_xdomain_copy_out_value()
2935 * Copies the contents of the src instance into the dst instance. src and dst
2936 * must have the same type, and if they are arrays, the same size.
2937 */
2938 static void
2939 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
2940 {
2941 if (src == NULL || dst == NULL) return;
2942
2943 g_assert (mono_object_class (src) == mono_object_class (dst));
2944
2945 switch (mono_object_class (src)->byval_arg.type) {
2946 case MONO_TYPE_ARRAY:
2947 case MONO_TYPE_SZARRAY: {
2948 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
2949 if (mt == MONO_MARSHAL_SERIALIZE) return;
2950 if (mt == MONO_MARSHAL_COPY) {
2951 int i, len = mono_array_length ((MonoArray *)dst);
2952 for (i = 0; i < len; i++) {
2953 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
2954 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
2955 }
2956 } else {
2957 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
2958 }
2959 return;
2960 }
2961 }
2962
2963 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
2964 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
2965 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
2966
2967 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)));
2968 dst_sb->cached_str = NULL;
2969 dst_sb->length = src_sb->length;
2970 }
2971 }
2972
2973 static void
2974 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
2975 {
2976 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
2977 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
2978 }
2979
2980 static void
2981 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
2982 {
2983 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
2984 }
2985
2986 /* mono_marshal_supports_fast_xdomain()
2987 * Returns TRUE if the method can use the fast xdomain wrapper.
2988 */
2989 static gboolean
2990 mono_marshal_supports_fast_xdomain (MonoMethod *method)
2991 {
2992 return !method->klass->contextbound &&
2993 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
2994 }
2995
2996 static gint32
2997 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
2998 {
2999 MonoDomain *current_domain = mono_domain_get ();
3000 MonoDomain *domain = mono_domain_get_by_id (id);
3001
3002 if (!domain || !mono_domain_set (domain, FALSE))
3003 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3004
3005 if (push)
3006 mono_thread_push_appdomain_ref (domain);
3007 else
3008 mono_thread_pop_appdomain_ref ();
3009
3010 return current_domain->domain_id;
3011 }
3012
3013 static void
3014 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3015 {
3016 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3017 }
3018
3019 /* mono_marshal_emit_load_domain_method ()
3020 * Loads into the stack a pointer to the code of the provided method for
3021 * the current domain.
3022 */
3023 static void
3024 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3025 {
3026 /* We need a pointer to the method for the running domain (not the domain
3027 * that compiles the method).
3028 */
3029 mono_mb_emit_ptr (mb, method);
3030 mono_mb_emit_icall (mb, mono_compile_method);
3031 }
3032
3033 /* mono_marshal_check_domain_image ()
3034 * Returns TRUE if the image is loaded in the specified
3035 * application domain.
3036 */
3037 static gboolean
3038 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3039 {
3040 MonoAssembly* ass;
3041 GSList *tmp;
3042
3043 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3044 if (!domain)
3045 return FALSE;
3046
3047 mono_domain_assemblies_lock (domain);
3048 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3049 ass = tmp->data;
3050 if (ass->image == image)
3051 break;
3052 }
3053 mono_domain_assemblies_unlock (domain);
3054
3055 return tmp != NULL;
3056 }
3057
3058 /* mono_marshal_get_xappdomain_dispatch ()
3059 * Generates a method that dispatches a method call from another domain into
3060 * the current domain.
3061 */
3062 static MonoMethod *
3063 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3064 {
3065 MonoMethodSignature *sig, *csig;
3066 MonoMethodBuilder *mb;
3067 MonoMethod *res;
3068 int i, j, param_index, copy_locals_base;
3069 MonoClass *ret_class = NULL;
3070 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3071 MonoExceptionClause *main_clause;
3072 int pos, pos_leave;
3073 gboolean copy_return;
3074
3075 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3076 return res;
3077
3078 sig = mono_method_signature (method);
3079 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3080
3081 j = 0;
3082 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3083 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3084 csig->params [j++] = &byte_array_class->this_arg;
3085 csig->params [j++] = &byte_array_class->this_arg;
3086 for (i = 0; i < sig->param_count; i++) {
3087 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3088 csig->params [j++] = sig->params [i];
3089 }
3090 if (copy_return)
3091 csig->ret = sig->ret;
3092 else
3093 csig->ret = &mono_defaults.void_class->byval_arg;
3094 csig->pinvoke = 1;
3095 csig->hasthis = FALSE;
3096
3097 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3098 mb->method->save_lmf = 1;
3099
3100 /* Locals */
3101
3102 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3103 if (complex_count > 0)
3104 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3105 if (sig->ret->type != MONO_TYPE_VOID) {
3106 loc_return = mono_mb_add_local (mb, sig->ret);
3107 ret_class = mono_class_from_mono_type (sig->ret);
3108 }
3109
3110 /* try */
3111
3112 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3113 main_clause->try_offset = mono_mb_get_label (mb);
3114
3115 /* Clean the call context */
3116
3117 mono_mb_emit_byte (mb, CEE_LDNULL);
3118 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3119 mono_mb_emit_byte (mb, CEE_POP);
3120
3121 /* Deserialize call data */
3122
3123 mono_mb_emit_ldarg (mb, 1);
3124 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3125 mono_mb_emit_byte (mb, CEE_DUP);
3126 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3127
3128 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3129 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3130
3131 if (complex_count > 0)
3132 mono_mb_emit_stloc (mb, loc_array);
3133 else
3134 mono_mb_emit_byte (mb, CEE_POP);
3135
3136 mono_mb_patch_short_branch (mb, pos);
3137
3138 /* Get the target object */
3139
3140 mono_mb_emit_ldarg (mb, 0);
3141 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3142
3143 /* Load the arguments */
3144
3145 copy_locals_base = mb->locals;
3146 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3147 j = 0;
3148 for (i = 0; i < sig->param_count; i++) {
3149 MonoType *pt = sig->params [i];
3150 MonoClass *pclass = mono_class_from_mono_type (pt);
3151 switch (marshal_types [i]) {
3152 case MONO_MARSHAL_SERIALIZE: {
3153 /* take the value from the serialized array */
3154 mono_mb_emit_ldloc (mb, loc_array);
3155 mono_mb_emit_icon (mb, j++);
3156 if (pt->byref) {
3157 if (pclass->valuetype) {
3158 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3159 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3160 } else {
3161 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3162 }
3163 } else {
3164 if (pclass->valuetype) {
3165 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3166 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3167 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3168 } else {
3169 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3170 if (pclass != mono_defaults.object_class) {
3171 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3172 }
3173 }
3174 }
3175 break;
3176 }
3177 case MONO_MARSHAL_COPY_OUT: {
3178 /* Keep a local copy of the value since we need to copy it back after the call */
3179 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3180 mono_mb_emit_ldarg (mb, param_index++);
3181 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3182 mono_mb_emit_byte (mb, CEE_DUP);
3183 mono_mb_emit_stloc (mb, copy_local);
3184 break;
3185 }
3186 case MONO_MARSHAL_COPY: {
3187 mono_mb_emit_ldarg (mb, param_index);
3188 if (pt->byref) {
3189 mono_mb_emit_byte (mb, CEE_DUP);
3190 mono_mb_emit_byte (mb, CEE_DUP);
3191 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3192 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3193 mono_mb_emit_byte (mb, CEE_STIND_REF);
3194 } else {
3195 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3196 }
3197 param_index++;
3198 break;
3199 }
3200 case MONO_MARSHAL_NONE:
3201 mono_mb_emit_ldarg (mb, param_index++);
3202 break;
3203 }
3204 }
3205
3206 /* Make the call to the real object */
3207
3208 emit_thread_force_interrupt_checkpoint (mb);
3209
3210 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3211
3212 if (sig->ret->type != MONO_TYPE_VOID)
3213 mono_mb_emit_stloc (mb, loc_return);
3214
3215 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3216
3217 j = 0;
3218 param_index = 3;
3219 for (i = 0; i < sig->param_count; i++) {
3220 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3221 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3222 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3223 mono_mb_emit_ldarg (mb, param_index);
3224 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3225 }
3226 param_index++;
3227 }
3228
3229 /* Serialize the return values */
3230
3231 if (complex_out_count > 0) {
3232 /* Reset parameters in the array that don't need to be serialized back */
3233 j = 0;
3234 for (i = 0; i < sig->param_count; i++) {
3235 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3236 if (!sig->params [i]->byref) {
3237 mono_mb_emit_ldloc (mb, loc_array);
3238 mono_mb_emit_icon (mb, j);
3239 mono_mb_emit_byte (mb, CEE_LDNULL);
3240 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3241 }
3242 j++;
3243 }
3244
3245 /* Add the return value to the array */
3246
3247 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3248 mono_mb_emit_ldloc (mb, loc_array);
3249 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3250 mono_mb_emit_ldloc (mb, loc_return);
3251
3252 g_assert (ret_class); /*FIXME properly fail here*/
3253 if (ret_class->valuetype) {
3254 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3255 }
3256 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3257 }
3258
3259 /* Serialize */
3260
3261 mono_mb_emit_ldarg (mb, 1);
3262 mono_mb_emit_ldloc (mb, loc_array);
3263 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3264 mono_mb_emit_byte (mb, CEE_STIND_REF);
3265 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3266 mono_mb_emit_ldarg (mb, 1);
3267 mono_mb_emit_ldloc (mb, loc_return);
3268 if (ret_class->valuetype) {
3269 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3270 }
3271 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3272 mono_mb_emit_byte (mb, CEE_STIND_REF);
3273 } else {
3274 mono_mb_emit_ldarg (mb, 1);
3275 mono_mb_emit_byte (mb, CEE_LDNULL);
3276 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3277 mono_mb_emit_byte (mb, CEE_STIND_REF);
3278 }
3279
3280 mono_mb_emit_ldarg (mb, 2);
3281 mono_mb_emit_byte (mb, CEE_LDNULL);
3282 mono_mb_emit_byte (mb, CEE_STIND_REF);
3283 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3284
3285 /* Main exception catch */
3286 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3287 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3288 main_clause->data.catch_class = mono_defaults.object_class;
3289
3290 /* handler code */
3291 main_clause->handler_offset = mono_mb_get_label (mb);
3292 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3293 mono_mb_emit_stloc (mb, loc_serialized_exc);
3294 mono_mb_emit_ldarg (mb, 2);
3295 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3296 mono_mb_emit_byte (mb, CEE_STIND_REF);
3297 mono_mb_emit_branch (mb, CEE_LEAVE);
3298 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3299 /* end catch */
3300
3301 mono_mb_patch_branch (mb, pos_leave);
3302
3303 if (copy_return)
3304 mono_mb_emit_ldloc (mb, loc_return);
3305
3306 mono_mb_emit_byte (mb, CEE_RET);
3307
3308 mono_mb_set_clauses (mb, 1, main_clause);
3309
3310 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3311 mono_mb_free (mb);
3312
3313 return res;
3314 }
3315
3316 /* mono_marshal_get_xappdomain_invoke ()
3317 * Generates a fast remoting wrapper for cross app domain calls.
3318 */
3319 MonoMethod *
3320 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3321 {
3322 MonoMethodSignature *sig;
3323 MonoMethodBuilder *mb;
3324 MonoMethod *res;
3325 int i, j, complex_count, complex_out_count, copy_locals_base;
3326 int *marshal_types;
3327 MonoClass *ret_class = NULL;
3328 MonoMethod *xdomain_method;
3329 int ret_marshal_type = MONO_MARSHAL_NONE;
3330 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3331 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3332 int pos, pos_dispatch, pos_noex;
3333 gboolean copy_return = FALSE;
3334
3335 g_assert (method);
3336
3337 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3338 return method;
3339
3340 /* we cant remote methods without this pointer */
3341 if (!mono_method_signature (method)->hasthis)
3342 return method;
3343
3344 if (!mono_marshal_supports_fast_xdomain (method))
3345 return mono_marshal_get_remoting_invoke (method);
3346
3347 mono_remoting_marshal_init ();
3348
3349 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3350 return res;
3351
3352 sig = mono_signature_no_pinvoke (method);
3353
3354 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3355 mb->method->save_lmf = 1;
3356
3357 /* Count the number of parameters that need to be serialized */
3358
3359 marshal_types = alloca (sizeof (int) * sig->param_count);
3360 complex_count = complex_out_count = 0;
3361 for (i = 0; i < sig->param_count; i++) {
3362 MonoType *ptype = sig->params[i];
3363 int mt = mono_get_xdomain_marshal_type (ptype);
3364
3365 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3366 * the copy will be made by reusing the original object instance
3367 */
3368 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3369 mt = MONO_MARSHAL_COPY_OUT;
3370 else if (mt == MONO_MARSHAL_SERIALIZE) {
3371 complex_count++;
3372 if (ptype->byref) complex_out_count++;
3373 }
3374 marshal_types [i] = mt;
3375 }
3376
3377 if (sig->ret->type != MONO_TYPE_VOID) {
3378 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3379 ret_class = mono_class_from_mono_type (sig->ret);
3380 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3381 }
3382
3383 /* Locals */
3384
3385 if (complex_count > 0)
3386 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3387 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3388 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3389 if (copy_return)
3390 loc_return = mono_mb_add_local (mb, sig->ret);
3391 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3392 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3393 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3394 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3395
3396 /* Save thread domain data */
3397
3398 mono_mb_emit_icall (mb, mono_context_get);
3399 mono_mb_emit_byte (mb, CEE_DUP);
3400 mono_mb_emit_stloc (mb, loc_context);
3401
3402 /* If the thread is not running in the default context, it needs to go
3403 * through the whole remoting sink, since the context is going to change
3404 */
3405 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3406 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3407
3408 /* Another case in which the fast path can't be used: when the target domain
3409 * has a different image for the same assembly.
3410 */
3411
3412 /* Get the target domain id */
3413
3414 mono_mb_emit_ldarg (mb, 0);
3415 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3416 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3417 mono_mb_emit_byte (mb, CEE_DUP);
3418 mono_mb_emit_stloc (mb, loc_real_proxy);
3419
3420 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3421 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3422 mono_mb_emit_stloc (mb, loc_domainid);
3423
3424 /* Check if the target domain has the same image for the required assembly */
3425
3426 mono_mb_emit_ldloc (mb, loc_domainid);
3427 mono_mb_emit_ptr (mb, method->klass->image);
3428 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3429 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3430
3431 /* Use the whole remoting sink to dispatch this message */
3432
3433 mono_mb_patch_short_branch (mb, pos);
3434
3435 mono_mb_emit_ldarg (mb, 0);
3436 for (i = 0; i < sig->param_count; i++)
3437 mono_mb_emit_ldarg (mb, i + 1);
3438
3439 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3440 mono_mb_emit_byte (mb, CEE_RET);
3441 mono_mb_patch_short_branch (mb, pos_dispatch);
3442
3443 /* Create the array that will hold the parameters to be serialized */
3444
3445 if (complex_count > 0) {
3446 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 */
3447 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3448
3449 j = 0;
3450 for (i = 0; i < sig->param_count; i++) {
3451 MonoClass *pclass;
3452 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3453 pclass = mono_class_from_mono_type (sig->params[i]);
3454 mono_mb_emit_byte (mb, CEE_DUP);
3455 mono_mb_emit_icon (mb, j);
3456 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3457 if (sig->params[i]->byref) {
3458 if (pclass->valuetype)
3459 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3460 else
3461 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3462 }
3463 if (pclass->valuetype)
3464 mono_mb_emit_op (mb, CEE_BOX, pclass);
3465 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3466 j++;
3467 }
3468 mono_mb_emit_stloc (mb, loc_array);
3469
3470 /* Serialize parameters */
3471
3472 mono_mb_emit_ldloc (mb, loc_array);
3473 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3474 mono_mb_emit_stloc (mb, loc_serialized_data);
3475 } else {
3476 mono_mb_emit_byte (mb, CEE_LDNULL);
3477 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3478 mono_mb_emit_stloc (mb, loc_serialized_data);
3479 }
3480
3481 /* switch domain */
3482
3483 mono_mb_emit_ldloc (mb, loc_domainid);
3484 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3485 mono_marshal_emit_switch_domain (mb);
3486 mono_mb_emit_stloc (mb, loc_old_domainid);
3487
3488 /* Load the arguments */
3489
3490 mono_mb_emit_ldloc (mb, loc_real_proxy);
3491 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3492 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3493
3494 copy_locals_base = mb->locals;
3495 for (i = 0; i < sig->param_count; i++) {
3496 switch (marshal_types [i]) {
3497 case MONO_MARSHAL_SERIALIZE:
3498 continue;
3499 case MONO_MARSHAL_COPY: {
3500 mono_mb_emit_ldarg (mb, i+1);
3501 if (sig->params [i]->byref) {
3502 /* make a local copy of the byref parameter. The real parameter
3503 * will be updated after the xdomain call
3504 */
3505 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3506 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3507 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3508 mono_mb_emit_stloc (mb, copy_local);
3509 mono_mb_emit_ldloc_addr (mb, copy_local);
3510 }
3511 break;
3512 }
3513 case MONO_MARSHAL_COPY_OUT:
3514 case MONO_MARSHAL_NONE:
3515 mono_mb_emit_ldarg (mb, i+1);
3516 break;
3517 }
3518 }
3519
3520 /* Make the call to the invoke wrapper in the target domain */
3521
3522 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3523 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3524 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3525
3526 if (copy_return)
3527 mono_mb_emit_stloc (mb, loc_return);
3528
3529 /* Switch domain */
3530
3531 mono_mb_emit_ldloc (mb, loc_old_domainid);
3532 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3533 mono_marshal_emit_switch_domain (mb);
3534 mono_mb_emit_byte (mb, CEE_POP);
3535
3536 /* Restore thread domain data */
3537
3538 mono_mb_emit_ldloc (mb, loc_context);
3539 mono_mb_emit_icall (mb, mono_context_set);
3540
3541 /* if (loc_serialized_exc != null) ... */
3542
3543 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3544 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3545
3546 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3547 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3548 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3549 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3550 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3551 mono_mb_emit_byte (mb, CEE_THROW);
3552 mono_mb_patch_short_branch (mb, pos_noex);
3553
3554 /* copy back non-serialized output parameters */
3555
3556 j = 0;
3557 for (i = 0; i < sig->param_count; i++) {
3558 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3559 mono_mb_emit_ldarg (mb, i + 1);
3560 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3561 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3562 mono_mb_emit_byte (mb, CEE_STIND_REF);
3563 }
3564
3565 /* Deserialize out parameters */
3566
3567 if (complex_out_count > 0) {
3568 mono_mb_emit_ldloc (mb, loc_serialized_data);
3569 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3570 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3571 mono_mb_emit_stloc (mb, loc_array);
3572
3573 /* Copy back output parameters and return type */
3574
3575 j = 0;
3576 for (i = 0; i < sig->param_count; i++) {
3577 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3578 if (sig->params[i]->byref) {
3579 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3580 mono_mb_emit_ldarg (mb, i + 1);
3581 mono_mb_emit_ldloc (mb, loc_array);
3582 mono_mb_emit_icon (mb, j);
3583 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3584 if (pclass->valuetype) {
3585 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3586 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3587 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3588 } else {
3589 if (pclass != mono_defaults.object_class)
3590 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3591 mono_mb_emit_byte (mb, CEE_STIND_REF);
3592 }
3593 }
3594 j++;
3595 }
3596
3597 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3598 mono_mb_emit_ldloc (mb, loc_array);
3599 mono_mb_emit_icon (mb, complex_count);
3600 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3601 if (ret_class->valuetype) {
3602 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3603 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3604 }
3605 }
3606 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3607 mono_mb_emit_ldloc (mb, loc_serialized_data);
3608 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3609 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3610 if (ret_class->valuetype) {
3611 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3612 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3613 } else if (ret_class != mono_defaults.object_class) {
3614 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3615 }
3616 } else {
3617 mono_mb_emit_ldloc (mb, loc_serialized_data);
3618 mono_mb_emit_byte (mb, CEE_DUP);
3619 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3620 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3621
3622 mono_mb_patch_short_branch (mb, pos);
3623 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3624 mono_mb_emit_byte (mb, CEE_POP);
3625 }
3626
3627 if (copy_return) {
3628 mono_mb_emit_ldloc (mb, loc_return);
3629 if (ret_marshal_type == MONO_MARSHAL_COPY)
3630 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3631 }
3632
3633 mono_mb_emit_byte (mb, CEE_RET);
3634
3635 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3636 mono_mb_free (mb);
3637
3638 return res;
3639 }
3640
3641 MonoMethod *
3642 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3643 {
3644 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3645 return mono_marshal_get_xappdomain_invoke (method);
3646 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3647 #ifndef DISABLE_COM
3648 return mono_cominterop_get_invoke (method);
3649 #else
3650 g_assert_not_reached ();
3651 #endif
3652 } else {
3653 return mono_marshal_get_remoting_invoke (method);
3654 }
3655 /* Not erached */
3656 return NULL;
3657 }
3658
3659 G_GNUC_UNUSED static gpointer
3660 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3661 {
3662 if (rp->target_domain_id != -1)
3663 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3664 else
3665 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3666 }
3667
3668 MonoMethod *
3669 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3670 {
3671 MonoMethodSignature *sig;
3672 MonoMethodBuilder *mb;
3673 MonoMethod *res, *native;
3674 int i, pos, pos_rem;
3675
3676 g_assert (method);
3677
3678 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3679 return method;
3680
3681 /* we cant remote methods without this pointer */
3682 g_assert (mono_method_signature (method)->hasthis);
3683
3684 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3685 return res;
3686
3687 sig = mono_signature_no_pinvoke (method);
3688
3689 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3690
3691 for (i = 0; i <= sig->param_count; i++)
3692 mono_mb_emit_ldarg (mb, i);
3693
3694 mono_mb_emit_ldarg (mb, 0);
3695 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3696
3697 if (mono_marshal_supports_fast_xdomain (method)) {
3698 mono_mb_emit_ldarg (mb, 0);
3699 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3700
3701 /* wrapper for cross app domain calls */
3702 native = mono_marshal_get_xappdomain_invoke (method);
3703 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3704 mono_mb_emit_byte (mb, CEE_RET);
3705
3706 mono_mb_patch_branch (mb, pos_rem);
3707 }
3708 /* wrapper for normal remote calls */
3709 native = mono_marshal_get_remoting_invoke (method);
3710 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3711 mono_mb_emit_byte (mb, CEE_RET);
3712
3713 /* not a proxy */
3714 mono_mb_patch_branch (mb, pos);
3715 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3716 mono_mb_emit_byte (mb, CEE_RET);
3717
3718 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3719 mono_mb_free (mb);
3720
3721 return res;
3722 }
3723
3724 typedef struct
3725 {
3726 MonoMethodSignature *sig;
3727 MonoMethod *method;
3728 } SignatureMethodPair;
3729
3730 static guint
3731 signature_method_pair_hash (gconstpointer data)
3732 {
3733 SignatureMethodPair *pair = (SignatureMethodPair*)data;
3734
3735 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
3736 }
3737
3738 static gboolean
3739 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
3740 {
3741 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3742 }
3743
3744 static void
3745 free_signature_method_pair (SignatureMethodPair *pair)
3746 {
3747 g_free (pair);
3748 }
3749
3750 /*
3751 * the returned method invokes all methods in a multicast delegate.
3752 */
3753 MonoMethod *
3754 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3755 {
3756 MonoMethodSignature *sig, *static_sig;
3757 int i;
3758 MonoMethodBuilder *mb;
3759 MonoMethod *res, *newm;
3760 GHashTable *cache;
3761 SignatureMethodPair key;
3762 SignatureMethodPair *new_key;
3763 int local_prev, local_target;
3764 int pos0;
3765 char *name;
3766 MonoMethod *target_method = NULL;
3767 MonoClass *target_class = NULL;
3768 gboolean callvirt = FALSE;
3769
3770 /*
3771 * If the delegate target is null, and the target method is not static, a virtual
3772 * call is made to that method with the first delegate argument as this. This is
3773 * a non-documented .NET feature.
3774 */
3775 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3776 callvirt = TRUE;
3777 target_method = del->method;
3778 if (target_method->is_inflated) {
3779 MonoType *target_type;
3780
3781 g_assert (method->signature->hasthis);
3782 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3783 mono_method_get_context (method));
3784 target_class = mono_class_from_mono_type (target_type);
3785 } else {
3786 target_class = del->method->klass;
3787 }
3788 }
3789
3790 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3791 !strcmp (method->name, "Invoke"));
3792
3793 sig = mono_signature_no_pinvoke (method);
3794
3795 if (callvirt) {
3796 /* We need to cache the signature+method pair */
3797 mono_marshal_lock ();
3798 if (!method->klass->image->delegate_abstract_invoke_cache)
3799 method->klass->image->delegate_abstract_invoke_cache = g_hash_table_new_full (signature_method_pair_hash, (GEqualFunc)signature_method_pair_equal, (GDestroyNotify)free_signature_method_pair, NULL);
3800 cache = method->klass->image->delegate_abstract_invoke_cache;
3801 key.sig = sig;
3802 key.method = target_method;
3803 res = g_hash_table_lookup (cache, &key);
3804 mono_marshal_unlock ();
3805 if (res)
3806 return res;
3807 } else {
3808 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3809 (GHashFunc)mono_signature_hash,
3810 (GCompareFunc)mono_metadata_signature_equal);
3811 if ((res = mono_marshal_find_in_cache (cache, sig)))
3812 return res;
3813 }
3814
3815 static_sig = signature_dup (method->klass->image, sig);
3816 static_sig->hasthis = 0;
3817
3818 name = mono_signature_to_name (sig, "invoke");
3819 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3820 g_free (name);
3821
3822 /* allocate local 0 (object) */
3823 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3824 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3825
3826 g_assert (sig->hasthis);
3827
3828 /*
3829 * if (prev != null)
3830 * prev.Invoke( args .. );
3831 * return this.<target>( args .. );
3832 */
3833
3834 /* this wrapper can be used in unmanaged-managed transitions */
3835 emit_thread_interrupt_checkpoint (mb);
3836
3837 /* get this->prev */
3838 mono_mb_emit_ldarg (mb, 0);
3839 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3840 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3841 mono_mb_emit_stloc (mb, local_prev);
3842 mono_mb_emit_ldloc (mb, local_prev);
3843
3844 /* if prev != null */
3845 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3846
3847 /* then recurse */
3848
3849 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3850 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3851
3852 mono_mb_emit_ldloc (mb, local_prev);
3853 for (i = 0; i < sig->param_count; i++)
3854 mono_mb_emit_ldarg (mb, i + 1);
3855 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3856 if (sig->ret->type != MONO_TYPE_VOID)
3857 mono_mb_emit_byte (mb, CEE_POP);
3858
3859 /* continued or prev == null */
3860 mono_mb_patch_branch (mb, pos0);
3861
3862 /* get this->target */
3863 mono_mb_emit_ldarg (mb, 0);
3864 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
3865 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3866 mono_mb_emit_stloc (mb, local_target);
3867
3868 /* if target != null */
3869 mono_mb_emit_ldloc (mb, local_target);
3870 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3871
3872 /* then call this->method_ptr nonstatic */
3873 if (callvirt) {
3874 // FIXME:
3875 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3876 } else {
3877 mono_mb_emit_ldloc (mb, local_target);
3878 for (i = 0; i < sig->param_count; ++i)
3879 mono_mb_emit_ldarg (mb, i + 1);
3880 mono_mb_emit_ldarg (mb, 0);
3881 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3882 mono_mb_emit_byte (mb, CEE_LDIND_I );
3883 mono_mb_emit_op (mb, CEE_CALLI, sig);
3884
3885 mono_mb_emit_byte (mb, CEE_RET);
3886 }
3887
3888 /* else [target == null] call this->method_ptr static */
3889 mono_mb_patch_branch (mb, pos0);
3890
3891 if (callvirt) {
3892 mono_mb_emit_ldarg (mb, 1);
3893 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3894 for (i = 1; i < sig->param_count; ++i)
3895 mono_mb_emit_ldarg (mb, i + 1);
3896 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3897 } else {
3898 for (i = 0; i < sig->param_count; ++i)
3899 mono_mb_emit_ldarg (mb, i + 1);
3900 mono_mb_emit_ldarg (mb, 0);
3901 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3902 mono_mb_emit_byte (mb, CEE_LDIND_I );
3903 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
3904 }
3905
3906 mono_mb_emit_byte (mb, CEE_RET);
3907
3908 if (callvirt) {
3909 // From mono_mb_create_and_cache
3910 mb->skip_visibility = 1;
3911 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
3912 /*We perform double checked locking, so must fence before publishing*/
3913 mono_memory_barrier ();
3914 mono_marshal_lock ();
3915 res = g_hash_table_lookup (cache, &key);
3916 if (!res) {
3917 res = newm;
3918 new_key = g_new0 (SignatureMethodPair, 1);
3919 new_key->sig = sig;
3920 new_key->method = target_method;
3921 g_hash_table_insert (cache, new_key, res);
3922 mono_marshal_set_wrapper_info (res, new_key);
3923 mono_marshal_unlock ();
3924 } else {
3925 mono_marshal_unlock ();
3926 mono_free_method (newm);
3927 }
3928 } else {
3929 mb->skip_visibility = 1;
3930 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3931 }
3932 mono_mb_free (mb);
3933
3934 return res;
3935 }
3936
3937 /*
3938 * signature_dup_add_this:
3939 *
3940 * Make a copy of @sig, adding an explicit this argument.
3941 */
3942 static MonoMethodSignature*
3943 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
3944 {
3945 MonoMethodSignature *res;
3946 int i;
3947
3948 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
3949 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
3950 res->param_count = sig->param_count + 1;
3951 res->hasthis = FALSE;
3952 for (i = sig->param_count - 1; i >= 0; i --)
3953 res->params [i + 1] = sig->params [i];
3954 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
3955
3956 return res;
3957 }
3958
3959 typedef struct {
3960 MonoMethodSignature *ctor_sig;
3961 MonoMethodSignature *sig;
3962 } CtorSigPair;
3963
3964 /* protected by the marshal lock, contains CtorSigPair pointers */
3965 static GSList *strsig_list = NULL;
3966
3967 static MonoMethodSignature *
3968 lookup_string_ctor_signature (MonoMethodSignature *sig)
3969 {
3970 MonoMethodSignature *callsig;
3971 CtorSigPair *cs;
3972 GSList *item;
3973
3974 mono_marshal_lock ();
3975 callsig = NULL;
3976 for (item = strsig_list; item; item = item->next) {
3977 cs = item->data;
3978 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3979 * because it is lock-free.
3980 */
3981 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3982 callsig = cs->sig;
3983 break;
3984 }
3985 }
3986 mono_marshal_unlock ();
3987 return callsig;
3988 }
3989
3990 static MonoMethodSignature *
3991 add_string_ctor_signature (MonoMethod *method)
3992 {
3993 MonoMethodSignature *callsig;
3994 CtorSigPair *cs;
3995
3996 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3997 callsig->ret = &mono_defaults.string_class->byval_arg;
3998 cs = g_new (CtorSigPair, 1);
3999 cs->sig = callsig;
4000 cs->ctor_sig = mono_method_signature (method);
4001
4002 mono_marshal_lock ();
4003 strsig_list = g_slist_prepend (strsig_list, cs);
4004 mono_marshal_unlock ();
4005 return callsig;
4006 }
4007
4008 /*
4009 * mono_marshal_get_string_ctor_signature:
4010 *
4011 * Return the modified signature used by string ctors (they return the newly created
4012 * string).
4013 */
4014 MonoMethodSignature*
4015 mono_marshal_get_string_ctor_signature (MonoMethod *method)
4016 {
4017 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
4018 if (!sig)
4019 sig = add_string_ctor_signature (method);
4020
4021 return sig;
4022 }
4023
4024 static MonoType*
4025 get_runtime_invoke_type (MonoType *t, gboolean ret)
4026 {
4027 if (t->byref)
4028 /* Can't share this with 'I' as that needs another indirection */
4029 return t;
4030
4031 if (MONO_TYPE_IS_REFERENCE (t))
4032 return &mono_defaults.object_class->byval_arg;
4033
4034 if (ret)
4035 /* The result needs to be boxed */
4036 return t;
4037
4038 handle_enum:
4039 switch (t->type) {
4040 case MONO_TYPE_U1:
4041 return &mono_defaults.sbyte_class->byval_arg;
4042 case MONO_TYPE_U2:
4043 return &mono_defaults.int16_class->byval_arg;
4044 case MONO_TYPE_U4:
4045 return &mono_defaults.int32_class->byval_arg;
4046 case MONO_TYPE_U8:
4047 return &mono_defaults.int64_class->byval_arg;
4048 case MONO_TYPE_BOOLEAN:
4049 return &mono_defaults.sbyte_class->byval_arg;
4050 case MONO_TYPE_CHAR:
4051 return &mono_defaults.int16_class->byval_arg;
4052 case MONO_TYPE_U:
4053 case MONO_TYPE_PTR:
4054 return &mono_defaults.int_class->byval_arg;
4055 case MONO_TYPE_VALUETYPE:
4056 if (t->data.klass->enumtype) {
4057 t = mono_class_enum_basetype (t->data.klass);
4058 goto handle_enum;
4059 }
4060 return t;
4061 default:
4062 return t;
4063 }
4064 }
4065
4066 /*
4067 * mono_marshal_get_runtime_invoke_sig:
4068 *
4069 * Return a common signature used for sharing runtime invoke wrappers.
4070 */
4071 static MonoMethodSignature*
4072 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
4073 {
4074 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
4075 int i;
4076
4077 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
4078 for (i = 0; i < res->param_count; ++i)
4079 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
4080
4081 return res;
4082 }
4083
4084 static gboolean
4085 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4086 {
4087 /* Can't share wrappers which return a vtype since it needs to be boxed */
4088 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))
4089 return FALSE;
4090 else
4091 return mono_metadata_signature_equal (sig1, sig2);
4092 }
4093
4094 /*
4095 * generates IL code for the runtime invoke function
4096 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4097 *
4098 * we also catch exceptions if exc != null
4099 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4100 * it means that the compiled code for METHOD does not have to be looked up
4101 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4102 * its METHOD argument.
4103 */
4104 MonoMethod *
4105 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
4106 {
4107 MonoMethodSignature *sig, *csig, *callsig;
4108 MonoExceptionClause *clause;
4109 MonoMethodBuilder *mb;
4110 GHashTable *cache = NULL;
4111 MonoClass *target_klass;
4112 MonoMethod *res = NULL;
4113 static MonoString *string_dummy = NULL;
4114 static MonoMethodSignature *cctor_signature = NULL;
4115 static MonoMethodSignature *finalize_signature = NULL;
4116 int i, pos;
4117 char *name;
4118 gboolean need_direct_wrapper = FALSE;
4119 int *tmp_nullable_locals;
4120
4121 g_assert (method);
4122
4123 if (!cctor_signature) {
4124 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4125 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4126 }
4127 if (!finalize_signature) {
4128 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4129 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4130 finalize_signature->hasthis = 1;
4131 }
4132
4133 if (virtual)
4134 need_direct_wrapper = TRUE;
4135
4136 /*
4137 * Use a separate cache indexed by methods to speed things up and to avoid the
4138 * boundless mempool growth caused by the signature_dup stuff below.
4139 */
4140 if (virtual)
4141 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4142 else
4143 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4144 res = mono_marshal_find_in_cache (cache, method);
4145 if (res)
4146 return res;
4147
4148 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4149 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4150 /*
4151 * Array Get/Set/Address methods. The JIT implements them using inline code
4152 * so we need to create an invoke wrapper which calls the method directly.
4153 */
4154 need_direct_wrapper = TRUE;
4155 }
4156
4157 if (method->string_ctor) {
4158 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4159 if (!callsig)
4160 callsig = add_string_ctor_signature (method);
4161 /* Can't share this as we push a string as this */
4162 need_direct_wrapper = TRUE;
4163 } else {
4164 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4165 /*
4166 * Valuetype methods receive a managed pointer as the this argument.
4167 * Create a new signature to reflect this.
4168 */
4169 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4170 /* Can't share this as it would be shared with static methods taking an IntPtr argument */
4171 need_direct_wrapper = TRUE;
4172 } else {
4173 if (method->dynamic)
4174 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4175 else
4176 callsig = mono_method_signature (method);
4177 }
4178 }
4179
4180 #if 0
4181 /* Vtypes/nullables/Byrefs cause too many problems */
4182 for (i = 0; i < callsig->param_count; ++i) {
4183 if (MONO_TYPE_ISSTRUCT (callsig->params [i]) || callsig->params [i]->byref)
4184 need_direct_wrapper = TRUE;
4185 }
4186 #endif
4187
4188 /*
4189 * We try to share runtime invoke wrappers between different methods but have to
4190 * be careful about methods whose klass has a type cctor, since putting the wrapper
4191 * into that klass would mean that calling a method of klass A might invoke the
4192 * type initializer of class B, or throw an exception if the type initializer
4193 * was called before and failed. See #349621 for an example.
4194 * We avoid that for mscorlib methods by putting every wrapper into the object class.
4195 */
4196 if (method->klass->image == mono_defaults.corlib)
4197 target_klass = mono_defaults.object_class;
4198 else {
4199 /* Try to share wrappers for non-corlib methods with simple signatures */
4200 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4201 callsig = cctor_signature;
4202 target_klass = mono_defaults.object_class;
4203 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4204 callsig = finalize_signature;
4205 target_klass = mono_defaults.object_class;
4206 } else {
4207 // FIXME: This breaks too many things
4208 /*
4209 if (mono_class_get_cctor (method->klass))
4210 need_direct_wrapper = TRUE;
4211 */
4212
4213 target_klass = get_wrapper_target_class (method->klass->image);
4214 }
4215 }
4216
4217 if (need_direct_wrapper) {
4218 /* Already searched at the start */
4219 } else {
4220 MonoMethodSignature *tmp_sig;
4221
4222 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4223
4224 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4225 (GHashFunc)mono_signature_hash,
4226 (GCompareFunc)runtime_invoke_signature_equal);
4227
4228 /* from mono_marshal_find_in_cache */
4229 mono_marshal_lock ();
4230 res = g_hash_table_lookup (cache, callsig);
4231 mono_marshal_unlock ();
4232
4233 if (res) {
4234 g_free (callsig);
4235 return res;
4236 }
4237
4238 /* Make a copy of the signature from the image mempool */
4239 tmp_sig = callsig;
4240 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4241 g_free (tmp_sig);
4242 }
4243
4244 /* to make it work with our special string constructors */
4245 if (!string_dummy) {
4246 MONO_GC_REGISTER_ROOT (string_dummy);
4247 string_dummy = mono_string_new_wrapper ("dummy");
4248 }
4249
4250 sig = mono_method_signature (method);
4251
4252 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4253
4254 csig->ret = &mono_defaults.object_class->byval_arg;
4255 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4256 csig->params [0] = callsig->params [0];
4257 else
4258 csig->params [0] = &mono_defaults.object_class->byval_arg;
4259 csig->params [1] = &mono_defaults.int_class->byval_arg;
4260 csig->params [2] = &mono_defaults.int_class->byval_arg;
4261 csig->params [3] = &mono_defaults.int_class->byval_arg;
4262
4263 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4264 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4265 g_free (name);
4266
4267 /* allocate local 0 (object) tmp */
4268 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4269 /* allocate local 1 (object) exc */
4270 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4271
4272 /* cond set *exc to null */
4273 mono_mb_emit_byte (mb, CEE_LDARG_2);
4274 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4275 mono_mb_emit_byte (mb, 3);
4276 mono_mb_emit_byte (mb, CEE_LDARG_2);
4277 mono_mb_emit_byte (mb, CEE_LDNULL);
4278 mono_mb_emit_byte (mb, CEE_STIND_REF);
4279
4280 emit_thread_force_interrupt_checkpoint (mb);
4281
4282 if (virtual) {
4283 g_assert (sig->hasthis);
4284 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4285 }
4286
4287 if (sig->hasthis) {
4288 if (method->string_ctor) {
4289 mono_mb_emit_ptr (mb, string_dummy);
4290 } else {
4291 mono_mb_emit_ldarg (mb, 0);
4292 }
4293 }
4294
4295 tmp_nullable_locals = g_new0 (int, sig->param_count);
4296
4297 for (i = 0; i < sig->param_count; i++) {
4298 MonoType *t = sig->params [i];
4299 int type;
4300
4301 mono_mb_emit_ldarg (mb, 1);
4302 if (i) {
4303 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4304 mono_mb_emit_byte (mb, CEE_ADD);
4305 }
4306
4307 if (t->byref) {
4308 mono_mb_emit_byte (mb, CEE_LDIND_I);
4309 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4310 * So to make this work we unbox it to a local variablee and push a reference to that.
4311 */
4312 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4313 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4314
4315 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4316 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4317 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4318 }
4319 continue;
4320 }
4321
4322 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4323 type = sig->params [i]->type;
4324 handle_enum:
4325 switch (type) {
4326 case MONO_TYPE_I1:
4327 case MONO_TYPE_BOOLEAN:
4328 case MONO_TYPE_U1:
4329 case MONO_TYPE_I2:
4330 case MONO_TYPE_U2:
4331 case MONO_TYPE_CHAR:
4332 case MONO_TYPE_I:
4333 case MONO_TYPE_U:
4334 case MONO_TYPE_I4:
4335 case MONO_TYPE_U4:
4336 case MONO_TYPE_R4:
4337 case MONO_TYPE_R8:
4338 case MONO_TYPE_I8:
4339 case MONO_TYPE_U8:
4340 mono_mb_emit_byte (mb, CEE_LDIND_I);
4341 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4342 break;
4343 case MONO_TYPE_STRING:
4344 case MONO_TYPE_CLASS:
4345 case MONO_TYPE_ARRAY:
4346 case MONO_TYPE_PTR:
4347 case MONO_TYPE_SZARRAY:
4348 case MONO_TYPE_OBJECT:
4349 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4350 break;
4351 case MONO_TYPE_GENERICINST:
4352 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4353 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4354 break;
4355 }
4356
4357 /* fall through */
4358 case MONO_TYPE_VALUETYPE:
4359 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4360 type = mono_class_enum_basetype (t->data.klass)->type;
4361 goto handle_enum;
4362 }
4363 mono_mb_emit_byte (mb, CEE_LDIND_I);
4364 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4365 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4366 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4367 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4368 } else {
4369 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4370 }
4371 break;
4372 default:
4373 g_assert_not_reached ();
4374 }
4375 }
4376
4377 if (virtual) {
4378 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4379 } else if (need_direct_wrapper) {
4380 mono_mb_emit_op (mb, CEE_CALL, method);
4381 } else {
4382 mono_mb_emit_ldarg (mb, 3);
4383 mono_mb_emit_calli (mb, callsig);
4384 }
4385
4386 if (sig->ret->byref) {
4387 /* fixme: */
4388 g_assert_not_reached ();
4389 }
4390
4391 switch (sig->ret->type) {
4392 case MONO_TYPE_VOID:
4393 if (!method->string_ctor)
4394 mono_mb_emit_byte (mb, CEE_LDNULL);
4395 break;
4396 case MONO_TYPE_BOOLEAN:
4397 case MONO_TYPE_CHAR:
4398 case MONO_TYPE_I1:
4399 case MONO_TYPE_U1:
4400 case MONO_TYPE_I2:
4401 case MONO_TYPE_U2:
4402 case MONO_TYPE_I4:
4403 case MONO_TYPE_U4:
4404 case MONO_TYPE_I:
4405 case MONO_TYPE_U:
4406 case MONO_TYPE_R4:
4407 case MONO_TYPE_R8:
4408 case MONO_TYPE_I8:
4409 case MONO_TYPE_U8:
4410 case MONO_TYPE_VALUETYPE:
4411 case MONO_TYPE_TYPEDBYREF:
4412 case MONO_TYPE_GENERICINST:
4413 /* box value types */
4414 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4415 break;
4416 case MONO_TYPE_STRING:
4417 case MONO_TYPE_CLASS:
4418 case MONO_TYPE_ARRAY:
4419 case MONO_TYPE_SZARRAY:
4420 case MONO_TYPE_OBJECT:
4421 /* nothing to do */
4422 break;
4423 case MONO_TYPE_PTR:
4424 /* The result is an IntPtr */
4425 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4426 break;
4427 default:
4428 g_assert_not_reached ();
4429 }
4430
4431 mono_mb_emit_stloc (mb, 0);
4432
4433 /* Convert back nullable-byref arguments */
4434 for (i = 0; i < sig->param_count; i++) {
4435 MonoType *t = sig->params [i];
4436
4437 /*
4438 * Box the result and put it back into the array, the caller will have
4439 * to obtain it from there.
4440 */
4441 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4442 mono_mb_emit_ldarg (mb, 1);
4443 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4444 mono_mb_emit_byte (mb, CEE_ADD);
4445
4446 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4447 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4448
4449 mono_mb_emit_byte (mb, CEE_STIND_REF);
4450 }
4451 }
4452
4453 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4454
4455 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4456 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4457 clause->try_len = mono_mb_get_label (mb);
4458
4459 /* filter code */
4460 clause->data.filter_offset = mono_mb_get_label (mb);
4461
4462 mono_mb_emit_byte (mb, CEE_POP);
4463 mono_mb_emit_byte (mb, CEE_LDARG_2);
4464 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4465 mono_mb_emit_byte (mb, CEE_PREFIX1);
4466 mono_mb_emit_byte (mb, CEE_CGT_UN);
4467 mono_mb_emit_byte (mb, CEE_PREFIX1);
4468 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4469
4470 clause->handler_offset = mono_mb_get_label (mb);
4471
4472 /* handler code */
4473 /* store exception */
4474 mono_mb_emit_stloc (mb, 1);
4475
4476 mono_mb_emit_byte (mb, CEE_LDARG_2);
4477 mono_mb_emit_ldloc (mb, 1);
4478 mono_mb_emit_byte (mb, CEE_STIND_REF);
4479
4480 mono_mb_emit_byte (mb, CEE_LDNULL);
4481 mono_mb_emit_stloc (mb, 0);
4482
4483 mono_mb_emit_branch (mb, CEE_LEAVE);
4484
4485 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4486
4487 mono_mb_set_clauses (mb, 1, clause);
4488
4489 /* return result */
4490 mono_mb_patch_branch (mb, pos);
4491 mono_mb_emit_ldloc (mb, 0);
4492 mono_mb_emit_byte (mb, CEE_RET);
4493
4494 g_free (tmp_nullable_locals);
4495
4496 if (need_direct_wrapper) {
4497 mb->skip_visibility = 1;
4498 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4499 } else {
4500 /* taken from mono_mb_create_and_cache */
4501 mono_marshal_lock ();
4502 res = g_hash_table_lookup (cache, callsig);
4503 mono_marshal_unlock ();
4504
4505 /* Somebody may have created it before us */
4506 if (!res) {
4507 MonoMethod *newm;
4508 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4509
4510 mono_marshal_lock ();
4511 res = g_hash_table_lookup (cache, callsig);
4512 if (!res) {
4513 res = newm;
4514 g_hash_table_insert (cache, callsig, res);
4515 /* Can't insert it into wrapper_hash since the key is a signature */
4516 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4517 } else {
4518 mono_free_method (newm);
4519 }
4520 mono_marshal_unlock ();
4521 }
4522
4523 /* end mono_mb_create_and_cache */
4524 }
4525
4526 mono_mb_free (mb);
4527
4528 return res;
4529 }
4530
4531 /*
4532 * mono_marshal_get_runtime_invoke_dynamic:
4533 *
4534 * Return a method which can be used to invoke managed methods from native code
4535 * dynamically.
4536 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4537 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4538 * ARGS should point to an architecture specific structure containing
4539 * the arguments and space for the return value.
4540 * The other arguments are the same as for runtime_invoke (), except that
4541 * ARGS should contain the this argument too.
4542 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4543 * is only one copy of it, which is useful in full-aot.
4544 */
4545 MonoMethod*
4546 mono_marshal_get_runtime_invoke_dynamic (void)
4547 {
4548 static MonoMethod *method;
4549 MonoMethodSignature *csig;
4550 MonoExceptionClause *clause;
4551 MonoMethodBuilder *mb;
4552 int pos, posna;
4553 char *name;
4554
4555 if (method)
4556 return method;
4557
4558 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4559
4560 csig->ret = &mono_defaults.void_class->byval_arg;
4561 csig->params [0] = &mono_defaults.int_class->byval_arg;
4562 csig->params [1] = &mono_defaults.int_class->byval_arg;
4563 csig->params [2] = &mono_defaults.int_class->byval_arg;
4564 csig->params [3] = &mono_defaults.int_class->byval_arg;
4565
4566 name = g_strdup ("runtime_invoke_dynamic");
4567 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4568 g_free (name);
4569
4570 /* allocate local 0 (object) tmp */
4571 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4572 /* allocate local 1 (object) exc */
4573 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4574
4575 /* cond set *exc to null */
4576 mono_mb_emit_byte (mb, CEE_LDARG_1);
4577 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4578 mono_mb_emit_byte (mb, 3);
4579 mono_mb_emit_byte (mb, CEE_LDARG_1);
4580 mono_mb_emit_byte (mb, CEE_LDNULL);
4581 mono_mb_emit_byte (mb, CEE_STIND_REF);
4582
4583 emit_thread_force_interrupt_checkpoint (mb);
4584
4585 mono_mb_emit_byte (mb, CEE_LDARG_0);
4586 mono_mb_emit_byte (mb, CEE_LDARG_2);
4587 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4588 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4589
4590 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4591
4592 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4593 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4594 clause->try_len = mono_mb_get_label (mb);
4595
4596 /* filter code */
4597 clause->data.filter_offset = mono_mb_get_label (mb);
4598
4599 mono_mb_emit_byte (mb, CEE_POP);
4600 mono_mb_emit_byte (mb, CEE_LDARG_1);
4601 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4602 mono_mb_emit_byte (mb, CEE_PREFIX1);
4603 mono_mb_emit_byte (mb, CEE_CGT_UN);
4604 mono_mb_emit_byte (mb, CEE_PREFIX1);
4605 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4606
4607 clause->handler_offset = mono_mb_get_label (mb);
4608
4609 /* handler code */
4610 /* store exception */
4611 mono_mb_emit_stloc (mb, 1);
4612
4613 mono_mb_emit_byte (mb, CEE_LDARG_1);
4614 mono_mb_emit_ldloc (mb, 1);
4615 mono_mb_emit_byte (mb, CEE_STIND_REF);
4616
4617 mono_mb_emit_byte (mb, CEE_LDNULL);
4618 mono_mb_emit_stloc (mb, 0);
4619
4620 /* Check for the abort exception */
4621 mono_mb_emit_ldloc (mb, 1);
4622 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4623 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4624
4625 /* Delay the abort exception */
4626 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4627
4628 mono_mb_patch_short_branch (mb, posna);
4629 mono_mb_emit_branch (mb, CEE_LEAVE);
4630
4631 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4632
4633 mono_mb_set_clauses (mb, 1, clause);
4634
4635 /* return result */
4636 mono_mb_patch_branch (mb, pos);
4637 //mono_mb_emit_ldloc (mb, 0);
4638 mono_mb_emit_byte (mb, CEE_RET);
4639
4640 mono_loader_lock ();
4641 /* double-checked locking */
4642 if (!method) {
4643 method = mono_mb_create_method (mb, csig, 16);
4644 }
4645 mono_loader_unlock ();
4646
4647 mono_mb_free (mb);
4648
4649 return method;
4650 }
4651
4652 static void
4653 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4654 {
4655 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4656 klass->name_space, klass->name);
4657
4658 mono_mb_emit_exception_marshal_directive (mb, msg);
4659 }
4660
4661 /*
4662 * mono_marshal_get_ldfld_remote_wrapper:
4663 * @klass: The return type
4664 *
4665 * This method generates a wrapper for calling mono_load_remote_field_new.
4666 * The return type is ignored for now, as mono_load_remote_field_new () always
4667 * returns an object. In the future, to optimize some codepaths, we might
4668 * call a different function that takes a pointer to a valuetype, instead.
4669 */
4670 MonoMethod *
4671 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4672 {
4673 MonoMethodSignature *sig, *csig;
4674 MonoMethodBuilder *mb;
4675 MonoMethod *res;
4676 static MonoMethod* cached = NULL;
4677
4678 mono_marshal_lock ();
4679 if (cached) {
4680 mono_marshal_unlock ();
4681 return cached;
4682 }
4683 mono_marshal_unlock ();
4684
4685 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4686
4687 mb->method->save_lmf = 1;
4688
4689 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4690 sig->params [0] = &mono_defaults.object_class->byval_arg;
4691 sig->params [1] = &mono_defaults.int_class->byval_arg;
4692 sig->params [2] = &mono_defaults.int_class->byval_arg;
4693 sig->ret = &mono_defaults.object_class->byval_arg;
4694
4695 mono_mb_emit_ldarg (mb, 0);
4696 mono_mb_emit_ldarg (mb, 1);
4697 mono_mb_emit_ldarg (mb, 2);
4698
4699 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4700 csig->params [0] = &mono_defaults.object_class->byval_arg;
4701 csig->params [1] = &mono_defaults.int_class->byval_arg;
4702 csig->params [2] = &mono_defaults.int_class->byval_arg;
4703 csig->ret = &mono_defaults.object_class->byval_arg;
4704 csig->pinvoke = 1;
4705
4706 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4707 emit_thread_interrupt_checkpoint (mb);
4708
4709 mono_mb_emit_byte (mb, CEE_RET);
4710
4711 mono_marshal_lock ();
4712 res = cached;
4713 mono_marshal_unlock ();
4714 if (!res) {
4715 MonoMethod *newm;
4716 newm = mono_mb_create_method (mb, sig, 4);
4717 mono_marshal_lock ();
4718 res = cached;
4719 if (!res) {
4720 res = newm;
4721 cached = res;
4722 mono_marshal_unlock ();
4723 } else {
4724 mono_marshal_unlock ();
4725 mono_free_method (newm);
4726 }
4727 }
4728 mono_mb_free (mb);
4729
4730 return res;
4731 }
4732
4733 /*
4734 * mono_marshal_get_ldfld_wrapper:
4735 * @type: the type of the field
4736 *
4737 * This method generates a function which can be use to load a field with type
4738 * @type from an object. The generated function has the following signature:
4739 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4740 */
4741 MonoMethod *
4742 mono_marshal_get_ldfld_wrapper (MonoType *type)
4743 {
4744 MonoMethodSignature *sig;
4745 MonoMethodBuilder *mb;
4746 MonoMethod *res;
4747 MonoClass *klass;
4748 GHashTable *cache;
4749 char *name;
4750 int t, pos0, pos1 = 0;
4751
4752 type = mono_type_get_underlying_type (type);
4753
4754 t = type->type;
4755
4756 if (!type->byref) {
4757 if (type->type == MONO_TYPE_SZARRAY) {
4758 klass = mono_defaults.array_class;
4759 } else if (type->type == MONO_TYPE_VALUETYPE) {
4760 klass = type->data.klass;
4761 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4762 klass = mono_defaults.object_class;
4763 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4764 klass = mono_defaults.int_class;
4765 } else if (t == MONO_TYPE_GENERICINST) {
4766 if (mono_type_generic_inst_is_valuetype (type))
4767 klass = mono_class_from_mono_type (type);
4768 else
4769 klass = mono_defaults.object_class;
4770 } else {
4771 klass = mono_class_from_mono_type (type);
4772 }
4773 } else {
4774 klass = mono_defaults.int_class;
4775 }
4776
4777 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4778 if ((res = mono_marshal_find_in_cache (cache, klass)))
4779 return res;
4780
4781 /* we add the %p pointer value of klass because class names are not unique */
4782 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4783 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4784 g_free (name);
4785
4786 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4787 sig->params [0] = &mono_defaults.object_class->byval_arg;
4788 sig->params [1] = &mono_defaults.int_class->byval_arg;
4789 sig->params [2] = &mono_defaults.int_class->byval_arg;
4790 sig->params [3] = &mono_defaults.int_class->byval_arg;
4791 sig->ret = &klass->byval_arg;
4792
4793 mono_mb_emit_ldarg (mb, 0);
4794 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4795
4796 mono_mb_emit_ldarg (mb, 0);
4797 mono_mb_emit_ldarg (mb, 1);
4798 mono_mb_emit_ldarg (mb, 2);
4799
4800 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4801
4802 /*
4803 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4804 csig->params [0] = &mono_defaults.object_class->byval_arg;
4805 csig->params [1] = &mono_defaults.int_class->byval_arg;
4806 csig->params [2] = &mono_defaults.int_class->byval_arg;
4807 csig->ret = &klass->this_arg;
4808 csig->pinvoke = 1;
4809
4810 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4811 emit_thread_interrupt_checkpoint (mb);
4812 */
4813
4814 if (klass->valuetype) {
4815 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4816 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4817 } else {
4818 mono_mb_emit_byte (mb, CEE_RET);
4819 }
4820
4821
4822 mono_mb_patch_branch (mb, pos0);
4823
4824 mono_mb_emit_ldarg (mb, 0);
4825 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4826 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4827 mono_mb_emit_ldarg (mb, 3);
4828 mono_mb_emit_byte (mb, CEE_ADD);
4829
4830 if (klass->valuetype)
4831 mono_mb_patch_branch (mb, pos1);
4832
4833 switch (t) {
4834 case MONO_TYPE_I1:
4835 case MONO_TYPE_U1:
4836 case MONO_TYPE_BOOLEAN:
4837 case MONO_TYPE_CHAR:
4838 case MONO_TYPE_I2:
4839 case MONO_TYPE_U2:
4840 case MONO_TYPE_I4:
4841 case MONO_TYPE_U4:
4842 case MONO_TYPE_I8:
4843 case MONO_TYPE_U8:
4844 case MONO_TYPE_R4:
4845 case MONO_TYPE_R8:
4846 case MONO_TYPE_ARRAY:
4847 case MONO_TYPE_SZARRAY:
4848 case MONO_TYPE_OBJECT:
4849 case MONO_TYPE_CLASS:
4850 case MONO_TYPE_STRING:
4851 case MONO_TYPE_I:
4852 case MONO_TYPE_U:
4853 case MONO_TYPE_PTR:
4854 case MONO_TYPE_FNPTR:
4855 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
4856 break;
4857 case MONO_TYPE_VALUETYPE:
4858 g_assert (!klass->enumtype);
4859 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4860 break;
4861 case MONO_TYPE_GENERICINST:
4862 if (mono_type_generic_inst_is_valuetype (type)) {
4863 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4864 } else {
4865 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4866 }
4867 break;
4868 default:
4869 g_warning ("type %x not implemented", type->type);
4870 g_assert_not_reached ();
4871 }
4872
4873 mono_mb_emit_byte (mb, CEE_RET);
4874
4875 res = mono_mb_create_and_cache (cache, klass,
4876 mb, sig, sig->param_count + 16);
4877 mono_mb_free (mb);
4878
4879 return res;
4880 }
4881
4882 /*
4883 * mono_marshal_get_ldflda_wrapper:
4884 * @type: the type of the field
4885 *
4886 * This method generates a function which can be used to load a field address
4887 * from an object. The generated function has the following signature:
4888 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
4889 */
4890 MonoMethod *
4891 mono_marshal_get_ldflda_wrapper (MonoType *type)
4892 {
4893 MonoMethodSignature *sig;
4894 MonoMethodBuilder *mb;
4895 MonoMethod *res;
4896 MonoClass *klass;
4897 GHashTable *cache;
4898 char *name;
4899 int t, pos0, pos1, pos2, pos3;
4900
4901 type = mono_type_get_underlying_type (type);
4902 t = type->type;
4903
4904 if (!type->byref) {
4905 if (type->type == MONO_TYPE_SZARRAY) {
4906 klass = mono_defaults.array_class;
4907 } else if (type->type == MONO_TYPE_VALUETYPE) {
4908 klass = type->data.klass;
4909 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
4910 t == MONO_TYPE_CLASS) {
4911 klass = mono_defaults.object_class;
4912 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4913 klass = mono_defaults.int_class;
4914 } else if (t == MONO_TYPE_GENERICINST) {
4915 if (mono_type_generic_inst_is_valuetype (type))
4916 klass = mono_class_from_mono_type (type);
4917 else
4918 klass = mono_defaults.object_class;
4919 } else {
4920 klass = mono_class_from_mono_type (type);
4921 }
4922 } else {
4923 klass = mono_defaults.int_class;
4924 }
4925
4926 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
4927 if ((res = mono_marshal_find_in_cache (cache, klass)))
4928 return res;
4929
4930 /* we add the %p pointer value of klass because class names are not unique */
4931 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4932 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
4933 g_free (name);
4934
4935 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4936 sig->params [0] = &mono_defaults.object_class->byval_arg;
4937 sig->params [1] = &mono_defaults.int_class->byval_arg;
4938 sig->params [2] = &mono_defaults.int_class->byval_arg;
4939 sig->params [3] = &mono_defaults.int_class->byval_arg;
4940 sig->ret = &mono_defaults.int_class->byval_arg;
4941
4942 /* if typeof (this) != transparent_proxy goto pos0 */
4943 mono_mb_emit_ldarg (mb, 0);
4944 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4945
4946 /* if same_appdomain goto pos1 */
4947 mono_mb_emit_ldarg (mb, 0);
4948 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4949
4950 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
4951
4952 /* same app domain */
4953 mono_mb_patch_branch (mb, pos1);
4954
4955 /* if typeof (this) != contextbound goto pos2 */
4956 mono_mb_emit_ldarg (mb, 0);
4957 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
4958
4959 /* if this->rp->context == mono_context_get goto pos3 */
4960 mono_mb_emit_ldarg (mb, 0);
4961 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4962 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4963 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
4964 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4965 mono_mb_emit_icall (mb, mono_context_get);
4966 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
4967
4968 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
4969
4970 mono_mb_patch_branch (mb, pos2);
4971 mono_mb_patch_branch (mb, pos3);
4972
4973 /* return the address of the field from this->rp->unwrapped_server */
4974 mono_mb_emit_ldarg (mb, 0);
4975 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4976 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4977 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
4978 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4979 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4980 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4981 mono_mb_emit_ldarg (mb, 3);
4982 mono_mb_emit_byte (mb, CEE_ADD);
4983 mono_mb_emit_byte (mb, CEE_RET);
4984
4985 /* not a proxy: return the address of the field directly */
4986 mono_mb_patch_branch (mb, pos0);
4987
4988 mono_mb_emit_ldarg (mb, 0);
4989 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4990 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4991 mono_mb_emit_ldarg (mb, 3);
4992 mono_mb_emit_byte (mb, CEE_ADD);
4993
4994 mono_mb_emit_byte (mb, CEE_RET);
4995
4996 res = mono_mb_create_and_cache (cache, klass,
4997 mb, sig, sig->param_count + 16);
4998 mono_mb_free (mb);
4999
5000 return res;
5001 }
5002
5003 /*
5004 * mono_marshal_get_stfld_remote_wrapper:
5005 * klass: The type of the field
5006 *
5007 * This function generates a wrapper for calling mono_store_remote_field_new
5008 * with the appropriate signature.
5009 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5010 * klass argument anymore.
5011 */
5012 MonoMethod *
5013 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5014 {
5015 MonoMethodSignature *sig, *csig;
5016 MonoMethodBuilder *mb;
5017 MonoMethod *res;
5018 static MonoMethod *cached = NULL;
5019
5020 mono_marshal_lock ();
5021 if (cached) {
5022 mono_marshal_unlock ();
5023 return cached;
5024 }
5025 mono_marshal_unlock ();
5026
5027 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5028
5029 mb->method->save_lmf = 1;
5030
5031 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5032 sig->params [0] = &mono_defaults.object_class->byval_arg;
5033 sig->params [1] = &mono_defaults.int_class->byval_arg;
5034 sig->params [2] = &mono_defaults.int_class->byval_arg;
5035 sig->params [3] = &mono_defaults.object_class->byval_arg;
5036 sig->ret = &mono_defaults.void_class->byval_arg;
5037
5038 mono_mb_emit_ldarg (mb, 0);
5039 mono_mb_emit_ldarg (mb, 1);
5040 mono_mb_emit_ldarg (mb, 2);
5041 mono_mb_emit_ldarg (mb, 3);
5042
5043 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5044 csig->params [0] = &mono_defaults.object_class->byval_arg;
5045 csig->params [1] = &mono_defaults.int_class->byval_arg;
5046 csig->params [2] = &mono_defaults.int_class->byval_arg;
5047 csig->params [3] = &mono_defaults.object_class->byval_arg;
5048 csig->ret = &mono_defaults.void_class->byval_arg;
5049 csig->pinvoke = 1;
5050
5051 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5052 emit_thread_interrupt_checkpoint (mb);
5053
5054 mono_mb_emit_byte (mb, CEE_RET);
5055
5056 mono_marshal_lock ();
5057 res = cached;
5058 mono_marshal_unlock ();
5059 if (!res) {
5060 MonoMethod *newm;
5061 newm = mono_mb_create_method (mb, sig, 6);
5062 mono_marshal_lock ();
5063 res = cached;
5064 if (!res) {
5065 res = newm;
5066 cached = res;
5067 mono_marshal_unlock ();
5068 } else {
5069 mono_marshal_unlock ();
5070 mono_free_method (newm);
5071 }
5072 }
5073 mono_mb_free (mb);
5074
5075 return res;
5076 }
5077
5078 /*
5079 * mono_marshal_get_stfld_wrapper:
5080 * @type: the type of the field
5081 *
5082 * This method generates a function which can be use to store a field with type
5083 * @type. The generated function has the following signature:
5084 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5085 */
5086 MonoMethod *
5087 mono_marshal_get_stfld_wrapper (MonoType *type)
5088 {
5089 MonoMethodSignature *sig;
5090 MonoMethodBuilder *mb;
5091 MonoMethod *res;
5092 MonoClass *klass;
5093 GHashTable *cache;
5094 char *name;
5095 int t, pos;
5096
5097 type = mono_type_get_underlying_type (type);
5098 t = type->type;
5099
5100 if (!type->byref) {
5101 if (type->type == MONO_TYPE_SZARRAY) {
5102 klass = mono_defaults.array_class;
5103 } else if (type->type == MONO_TYPE_VALUETYPE) {
5104 klass = type->data.klass;
5105 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5106 klass = mono_defaults.object_class;
5107 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5108 klass = mono_defaults.int_class;
5109 } else if (t == MONO_TYPE_GENERICINST) {
5110 if (mono_type_generic_inst_is_valuetype (type))
5111 klass = mono_class_from_mono_type (type);
5112 else
5113 klass = mono_defaults.object_class;
5114 } else {
5115 klass = mono_class_from_mono_type (type);
5116 }
5117 } else {
5118 klass = mono_defaults.int_class;
5119 }
5120
5121 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5122 if ((res = mono_marshal_find_in_cache (cache, klass)))
5123 return res;
5124
5125 /* we add the %p pointer value of klass because class names are not unique */
5126 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5127 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5128 g_free (name);
5129
5130 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5131 sig->params [0] = &mono_defaults.object_class->byval_arg;
5132 sig->params [1] = &mono_defaults.int_class->byval_arg;
5133 sig->params [2] = &mono_defaults.int_class->byval_arg;
5134 sig->params [3] = &mono_defaults.int_class->byval_arg;
5135 sig->params [4] = &klass->byval_arg;
5136 sig->ret = &mono_defaults.void_class->byval_arg;
5137
5138 mono_mb_emit_ldarg (mb, 0);
5139 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5140
5141 mono_mb_emit_ldarg (mb, 0);
5142 mono_mb_emit_ldarg (mb, 1);
5143 mono_mb_emit_ldarg (mb, 2);
5144 mono_mb_emit_ldarg (mb, 4);
5145 if (klass->valuetype)
5146 mono_mb_emit_op (mb, CEE_BOX, klass);
5147
5148 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5149
5150 mono_mb_emit_byte (mb, CEE_RET);
5151
5152 mono_mb_patch_branch (mb, pos);
5153
5154 mono_mb_emit_ldarg (mb, 0);
5155 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5156 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5157 mono_mb_emit_ldarg (mb, 3);
5158 mono_mb_emit_byte (mb, CEE_ADD);
5159 mono_mb_emit_ldarg (mb, 4);
5160
5161 switch (t) {
5162 case MONO_TYPE_I1:
5163 case MONO_TYPE_U1:
5164 case MONO_TYPE_BOOLEAN:
5165 case MONO_TYPE_CHAR:
5166 case MONO_TYPE_I2:
5167 case MONO_TYPE_U2:
5168 case MONO_TYPE_I4:
5169 case MONO_TYPE_U4:
5170 case MONO_TYPE_I8:
5171 case MONO_TYPE_U8:
5172 case MONO_TYPE_R4:
5173 case MONO_TYPE_R8:
5174 case MONO_TYPE_ARRAY:
5175 case MONO_TYPE_SZARRAY:
5176 case MONO_TYPE_OBJECT:
5177 case MONO_TYPE_CLASS:
5178 case MONO_TYPE_STRING:
5179 case MONO_TYPE_I:
5180 case MONO_TYPE_U:
5181 case MONO_TYPE_PTR:
5182 case MONO_TYPE_FNPTR:
5183 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5184 break;
5185 case MONO_TYPE_VALUETYPE:
5186 g_assert (!klass->enumtype);
5187 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5188 break;
5189 case MONO_TYPE_GENERICINST:
5190 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5191 break;
5192 default:
5193 g_warning ("type %x not implemented", type->type);
5194 g_assert_not_reached ();
5195 }
5196
5197 mono_mb_emit_byte (mb, CEE_RET);
5198
5199 res = mono_mb_create_and_cache (cache, klass,
5200 mb, sig, sig->param_count + 16);
5201 mono_mb_free (mb);
5202
5203 return res;
5204 }
5205
5206 /*
5207 * generates IL code for the icall wrapper (the generated method
5208 * calls the unmanaged code in func)
5209 */
5210 MonoMethod *
5211 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5212 {
5213 MonoMethodSignature *csig, *csig2;
5214 MonoMethodBuilder *mb;
5215 MonoMethod *res;
5216 int i;
5217
5218 g_assert (sig->pinvoke);
5219
5220 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5221
5222 mb->method->save_lmf = 1;
5223
5224 /* Add an explicit this argument */
5225 if (sig->hasthis)
5226 csig2 = signature_dup_add_this (sig, mono_defaults.object_class);
5227 else
5228 csig2 = signature_dup (mono_defaults.corlib, sig);
5229
5230 if (sig->hasthis)
5231 mono_mb_emit_byte (mb, CEE_LDARG_0);
5232
5233 for (i = 0; i < sig->param_count; i++)
5234 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5235
5236 mono_mb_emit_native_call (mb, csig2, (gpointer) func);
5237 if (check_exceptions)
5238 emit_thread_interrupt_checkpoint (mb);
5239 mono_mb_emit_byte (mb, CEE_RET);
5240
5241 csig = signature_dup (mono_defaults.corlib, sig);
5242 csig->pinvoke = 0;
5243 if (csig->call_convention == MONO_CALL_VARARG)
5244 csig->call_convention = 0;
5245
5246 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5247 mono_mb_free (mb);
5248
5249 return res;
5250 }
5251
5252 static int
5253 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5254 MonoMarshalSpec *spec,
5255 int conv_arg, MonoType **conv_arg_type,
5256 MarshalAction action)
5257 {
5258 MonoType *mtype;
5259 MonoClass *mklass;
5260 static MonoClass *ICustomMarshaler = NULL;
5261 static MonoMethod *cleanup_native, *cleanup_managed;
5262 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5263 MonoMethod *get_instance;
5264 MonoMethodBuilder *mb = m->mb;
5265 char *exception_msg = NULL;
5266 guint32 loc1;
5267 int pos2;
5268
5269 if (!ICustomMarshaler) {
5270 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5271 g_assert (ICustomMarshaler);
5272
5273 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5274 g_assert (cleanup_native);
5275 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5276 g_assert (cleanup_managed);
5277 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5278 g_assert (marshal_managed_to_native);
5279 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5280 g_assert (marshal_native_to_managed);
5281 }
5282
5283 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5284 g_assert (mtype != NULL);
5285 mklass = mono_class_from_mono_type (mtype);
5286 g_assert (mklass != NULL);
5287
5288 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5289 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5290
5291 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5292 if (get_instance) {
5293 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5294 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5295 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5296 (get_sig->params [0]->type != MONO_TYPE_STRING))
5297 get_instance = NULL;
5298 }
5299
5300 if (!get_instance)
5301 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);
5302
5303 /* Throw exception and emit compensation code if neccesary */
5304 if (exception_msg) {
5305 switch (action) {
5306 case MARSHAL_ACTION_CONV_IN:
5307 case MARSHAL_ACTION_CONV_RESULT:
5308 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5309 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5310 mono_mb_emit_byte (mb, CEE_POP);
5311
5312 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5313 g_free (exception_msg);
5314
5315 break;
5316 case MARSHAL_ACTION_PUSH:
5317 mono_mb_emit_byte (mb, CEE_LDNULL);
5318 break;
5319 default:
5320 break;
5321 }
5322 return 0;
5323 }
5324
5325 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5326 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5327
5328 switch (action) {
5329 case MARSHAL_ACTION_CONV_IN:
5330 switch (t->type) {
5331 case MONO_TYPE_CLASS:
5332 case MONO_TYPE_OBJECT:
5333 case MONO_TYPE_STRING:
5334 case MONO_TYPE_ARRAY:
5335 case MONO_TYPE_SZARRAY:
5336 case MONO_TYPE_VALUETYPE:
5337 break;
5338
5339 default:
5340 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5341 g_assert_not_reached ();
5342 break;
5343 }
5344
5345 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5346
5347 mono_mb_emit_byte (mb, CEE_LDNULL);
5348 mono_mb_emit_stloc (mb, conv_arg);
5349
5350 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5351 break;
5352
5353 /* Minic MS.NET behavior */
5354 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5355 break;
5356
5357 /* Check for null */
5358 mono_mb_emit_ldarg (mb, argnum);
5359 if (t->byref)
5360 mono_mb_emit_byte (mb, CEE_LDIND_I);
5361 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5362
5363 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5364
5365 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5366
5367 mono_mb_emit_ldarg (mb, argnum);
5368 if (t->byref)
5369 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5370
5371 if (t->type == MONO_TYPE_VALUETYPE) {
5372 /*
5373 * Since we can't determine the type of the argument, we
5374 * will assume the unmanaged function takes a pointer.
5375 */
5376 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5377
5378 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5379 }
5380
5381 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5382 mono_mb_emit_stloc (mb, conv_arg);
5383
5384 mono_mb_patch_branch (mb, pos2);
5385 break;
5386
5387 case MARSHAL_ACTION_CONV_OUT:
5388 /* Check for null */
5389 mono_mb_emit_ldloc (mb, conv_arg);
5390 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5391
5392 if (t->byref) {
5393 mono_mb_emit_ldarg (mb, argnum);
5394
5395 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5396
5397 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5398
5399 mono_mb_emit_ldloc (mb, conv_arg);
5400 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5401 mono_mb_emit_byte (mb, CEE_STIND_REF);
5402 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5403 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5404
5405 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5406
5407 mono_mb_emit_ldloc (mb, conv_arg);
5408 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5409
5410 /* We have nowhere to store the result */
5411 mono_mb_emit_byte (mb, CEE_POP);
5412 }
5413
5414 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5415
5416 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5417
5418 mono_mb_emit_ldloc (mb, conv_arg);
5419
5420 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5421
5422 mono_mb_patch_branch (mb, pos2);
5423 break;
5424
5425 case MARSHAL_ACTION_PUSH:
5426 if (t->byref)
5427 mono_mb_emit_ldloc_addr (mb, conv_arg);
5428 else
5429 mono_mb_emit_ldloc (mb, conv_arg);
5430 break;
5431
5432 case MARSHAL_ACTION_CONV_RESULT:
5433 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5434
5435 mono_mb_emit_stloc (mb, 3);
5436
5437 mono_mb_emit_ldloc (mb, 3);
5438 mono_mb_emit_stloc (mb, loc1);
5439
5440 /* Check for null */
5441 mono_mb_emit_ldloc (mb, 3);
5442 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5443
5444 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5445
5446 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5447 mono_mb_emit_byte (mb, CEE_DUP);
5448
5449 mono_mb_emit_ldloc (mb, 3);
5450 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5451 mono_mb_emit_stloc (mb, 3);
5452
5453 mono_mb_emit_ldloc (mb, loc1);
5454 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5455
5456 mono_mb_patch_branch (mb, pos2);
5457 break;
5458
5459 case MARSHAL_ACTION_MANAGED_CONV_IN:
5460 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5461
5462 mono_mb_emit_byte (mb, CEE_LDNULL);
5463 mono_mb_emit_stloc (mb, conv_arg);
5464
5465 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5466 break;
5467
5468 /* Check for null */
5469 mono_mb_emit_ldarg (mb, argnum);
5470 if (t->byref)
5471 mono_mb_emit_byte (mb, CEE_LDIND_I);
5472 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5473
5474 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5475 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5476
5477 mono_mb_emit_ldarg (mb, argnum);
5478 if (t->byref)
5479 mono_mb_emit_byte (mb, CEE_LDIND_I);
5480
5481 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5482 mono_mb_emit_stloc (mb, conv_arg);
5483
5484 mono_mb_patch_branch (mb, pos2);
5485 break;
5486
5487 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5488 g_assert (!t->byref);
5489
5490 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5491
5492 mono_mb_emit_stloc (mb, 3);
5493
5494 mono_mb_emit_ldloc (mb, 3);
5495 mono_mb_emit_stloc (mb, loc1);
5496
5497 /* Check for null */
5498 mono_mb_emit_ldloc (mb, 3);
5499 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5500
5501 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5502 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5503 mono_mb_emit_byte (mb, CEE_DUP);
5504
5505 mono_mb_emit_ldloc (mb, 3);
5506 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5507 mono_mb_emit_stloc (mb, 3);
5508
5509 mono_mb_emit_ldloc (mb, loc1);
5510 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5511
5512 mono_mb_patch_branch (mb, pos2);
5513 break;
5514
5515 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5516
5517 /* Check for null */
5518 mono_mb_emit_ldloc (mb, conv_arg);
5519 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5520
5521 if (t->byref) {
5522 mono_mb_emit_ldarg (mb, argnum);
5523
5524 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5525
5526 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5527
5528 mono_mb_emit_ldloc (mb, conv_arg);
5529 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5530 mono_mb_emit_byte (mb, CEE_STIND_I);
5531 }
5532
5533 /* Call CleanUpManagedData */
5534 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5535
5536 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5537
5538 mono_mb_emit_ldloc (mb, conv_arg);
5539 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5540
5541 mono_mb_patch_branch (mb, pos2);
5542 break;
5543
5544 default:
5545 g_assert_not_reached ();
5546 }
5547
5548 return conv_arg;
5549 }
5550
5551 static int
5552 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5553 MonoMarshalSpec *spec,
5554 int conv_arg, MonoType **conv_arg_type,
5555 MarshalAction action)
5556 {
5557 MonoMethodBuilder *mb = m->mb;
5558
5559 switch (action) {
5560 case MARSHAL_ACTION_CONV_IN: {
5561 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5562
5563 g_assert (t->type == MONO_TYPE_OBJECT);
5564 g_assert (!t->byref);
5565
5566 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5567 mono_mb_emit_ldarg (mb, argnum);
5568 mono_mb_emit_icon (mb, encoding);
5569 mono_mb_emit_icon (mb, t->attrs);
5570 mono_mb_emit_icall (mb, mono_marshal_asany);
5571 mono_mb_emit_stloc (mb, conv_arg);
5572 break;
5573 }
5574
5575 case MARSHAL_ACTION_PUSH:
5576 mono_mb_emit_ldloc (mb, conv_arg);
5577 break;
5578
5579 case MARSHAL_ACTION_CONV_OUT: {
5580 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5581
5582 mono_mb_emit_ldarg (mb, argnum);
5583 mono_mb_emit_ldloc (mb, conv_arg);
5584 mono_mb_emit_icon (mb, encoding);
5585 mono_mb_emit_icon (mb, t->attrs);
5586 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5587 break;
5588 }
5589
5590 default:
5591 g_assert_not_reached ();
5592 }
5593
5594 return conv_arg;
5595 }
5596
5597 static int
5598 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5599 MonoMarshalSpec *spec,
5600 int conv_arg, MonoType **conv_arg_type,
5601 MarshalAction action)
5602 {
5603 MonoMethodBuilder *mb = m->mb;
5604 MonoClass *klass, *date_time_class;
5605 int pos = 0, pos2;
5606
5607 klass = mono_class_from_mono_type (t);
5608
5609 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
5610
5611 switch (action) {
5612 case MARSHAL_ACTION_CONV_IN:
5613 if (klass == date_time_class) {
5614 /* Convert it to an OLE DATE type */
5615 static MonoMethod *to_oadate;
5616
5617 if (!to_oadate)
5618 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5619 g_assert (to_oadate);
5620
5621 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5622
5623 if (t->byref) {
5624 mono_mb_emit_ldarg (mb, argnum);
5625 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5626 }
5627
5628 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5629 if (!t->byref)
5630 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5631
5632 mono_mb_emit_ldarg_addr (mb, argnum);
5633 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5634 mono_mb_emit_stloc (mb, conv_arg);
5635 }
5636
5637 if (t->byref)
5638 mono_mb_patch_branch (mb, pos);
5639 break;
5640 }
5641
5642 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5643 klass->blittable || klass->enumtype)
5644 break;
5645
5646 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5647
5648 /* store the address of the source into local variable 0 */
5649 if (t->byref)
5650 mono_mb_emit_ldarg (mb, argnum);
5651 else
5652 mono_mb_emit_ldarg_addr (mb, argnum);
5653
5654 mono_mb_emit_stloc (mb, 0);
5655
5656 /* allocate space for the native struct and
5657 * store the address into local variable 1 (dest) */
5658 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5659 mono_mb_emit_byte (mb, CEE_PREFIX1);
5660 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5661 mono_mb_emit_stloc (mb, conv_arg);
5662
5663 if (t->byref) {
5664 mono_mb_emit_ldloc (mb, 0);
5665 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5666 }
5667
5668 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5669 /* set dst_ptr */
5670 mono_mb_emit_ldloc (mb, conv_arg);
5671 mono_mb_emit_stloc (mb, 1);
5672
5673 /* emit valuetype conversion code */
5674 emit_struct_conv (mb, klass, FALSE);
5675 }
5676
5677 if (t->byref)
5678 mono_mb_patch_branch (mb, pos);
5679 break;
5680
5681 case MARSHAL_ACTION_PUSH:
5682 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5683 /* FIXME: */
5684 g_assert (!t->byref);
5685
5686 /* Have to change the signature since the vtype is passed byref */
5687 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5688
5689 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5690 klass->blittable || klass->enumtype)
5691 mono_mb_emit_ldarg_addr (mb, argnum);
5692 else
5693 mono_mb_emit_ldloc (mb, conv_arg);
5694 break;
5695 }
5696
5697 if (klass == date_time_class) {
5698 if (t->byref)
5699 mono_mb_emit_ldloc_addr (mb, conv_arg);
5700 else
5701 mono_mb_emit_ldloc (mb, conv_arg);
5702 break;
5703 }
5704
5705 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5706 klass->blittable || klass->enumtype) {
5707 mono_mb_emit_ldarg (mb, argnum);
5708 break;
5709 }
5710 mono_mb_emit_ldloc (mb, conv_arg);
5711 if (!t->byref) {
5712 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5713 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5714 }
5715 break;
5716
5717 case MARSHAL_ACTION_CONV_OUT:
5718 if (klass == date_time_class) {
5719 /* Convert from an OLE DATE type */
5720 static MonoMethod *from_oadate;
5721
5722 if (!t->byref)
5723 break;
5724
5725 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5726 if (!from_oadate)
5727 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5728 g_assert (from_oadate);
5729
5730 mono_mb_emit_ldarg (mb, argnum);
5731 mono_mb_emit_ldloc (mb, conv_arg);
5732 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5733 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5734 }
5735 break;
5736 }
5737
5738 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5739 klass->blittable || klass->enumtype)
5740 break;
5741
5742 if (t->byref) {
5743 /* dst = argument */
5744 mono_mb_emit_ldarg (mb, argnum);
5745 mono_mb_emit_stloc (mb, 1);
5746
5747 mono_mb_emit_ldloc (mb, 1);
5748 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5749
5750 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5751 /* src = tmp_locals [i] */
5752 mono_mb_emit_ldloc (mb, conv_arg);
5753 mono_mb_emit_stloc (mb, 0);
5754
5755 /* emit valuetype conversion code */
5756 emit_struct_conv (mb, klass, TRUE);
5757 }
5758 }
5759
5760 emit_struct_free (mb, klass, conv_arg);
5761
5762 if (t->byref)
5763 mono_mb_patch_branch (mb, pos);
5764 break;
5765
5766 case MARSHAL_ACTION_CONV_RESULT:
5767 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5768 klass->blittable) {
5769 mono_mb_emit_stloc (mb, 3);
5770 break;
5771 }
5772
5773 /* load pointer to returned value type */
5774 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5775 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5776 /* store the address of the source into local variable 0 */
5777 mono_mb_emit_stloc (mb, 0);
5778 /* set dst_ptr */
5779 mono_mb_emit_ldloc_addr (mb, 3);
5780 mono_mb_emit_stloc (mb, 1);
5781
5782 /* emit valuetype conversion code */
5783 emit_struct_conv (mb, klass, TRUE);
5784 break;
5785
5786 case MARSHAL_ACTION_MANAGED_CONV_IN:
5787 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5788 klass->blittable || klass->enumtype) {
5789 conv_arg = 0;
5790 break;
5791 }
5792
5793 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5794
5795 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5796 break;
5797
5798 if (t->byref)
5799 mono_mb_emit_ldarg (mb, argnum);
5800 else
5801 mono_mb_emit_ldarg_addr (mb, argnum);
5802 mono_mb_emit_stloc (mb, 0);
5803
5804 if (t->byref) {
5805 mono_mb_emit_ldloc (mb, 0);
5806 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5807 }
5808
5809 mono_mb_emit_ldloc_addr (mb, conv_arg);
5810 mono_mb_emit_stloc (mb, 1);
5811
5812 /* emit valuetype conversion code */
5813 emit_struct_conv (mb, klass, TRUE);
5814
5815 if (t->byref)
5816 mono_mb_patch_branch (mb, pos);
5817 break;
5818
5819 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5820 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5821 klass->blittable || klass->enumtype) {
5822 break;
5823 }
5824
5825 /* Check for null */
5826 mono_mb_emit_ldarg (mb, argnum);
5827 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5828
5829 /* Set src */
5830 mono_mb_emit_ldloc_addr (mb, conv_arg);
5831 mono_mb_emit_stloc (mb, 0);
5832
5833 /* Set dest */
5834 mono_mb_emit_ldarg (mb, argnum);
5835 mono_mb_emit_stloc (mb, 1);
5836
5837 /* emit valuetype conversion code */
5838 emit_struct_conv (mb, klass, FALSE);
5839
5840 mono_mb_patch_branch (mb, pos2);
5841 break;
5842
5843 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5844 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5845 klass->blittable || klass->enumtype) {
5846 mono_mb_emit_stloc (mb, 3);
5847 m->retobj_var = 0;
5848 break;
5849 }
5850
5851 /* load pointer to returned value type */
5852 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5853 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5854
5855 /* store the address of the source into local variable 0 */
5856 mono_mb_emit_stloc (mb, 0);
5857 /* allocate space for the native struct and
5858 * store the address into dst_ptr */
5859 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5860 m->retobj_class = klass;
5861 g_assert (m->retobj_var);
5862 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5863 mono_mb_emit_byte (mb, CEE_CONV_I);
5864 mono_mb_emit_icall (mb, mono_marshal_alloc);
5865 mono_mb_emit_stloc (mb, 1);
5866 mono_mb_emit_ldloc (mb, 1);
5867 mono_mb_emit_stloc (mb, m->retobj_var);
5868
5869 /* emit valuetype conversion code */
5870 emit_struct_conv (mb, klass, FALSE);
5871 break;
5872
5873 default:
5874 g_assert_not_reached ();
5875 }
5876
5877 return conv_arg;
5878 }
5879
5880 static int
5881 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5882 MonoMarshalSpec *spec,
5883 int conv_arg, MonoType **conv_arg_type,
5884 MarshalAction action)
5885 {
5886 MonoMethodBuilder *mb = m->mb;
5887 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5888 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5889 gboolean need_free;
5890
5891 switch (action) {
5892 case MARSHAL_ACTION_CONV_IN:
5893 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5894 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5895
5896 if (t->byref) {
5897 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5898 break;
5899
5900 mono_mb_emit_ldarg (mb, argnum);
5901 mono_mb_emit_byte (mb, CEE_LDIND_I);
5902 } else {
5903 mono_mb_emit_ldarg (mb, argnum);
5904 }
5905
5906 if (conv == -1) {
5907 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5908 MonoException *exc = mono_get_exception_not_implemented (msg);
5909 g_warning ("%s", msg);
5910 g_free (msg);
5911 mono_raise_exception (exc);
5912 }
5913 else
5914 mono_mb_emit_icall (mb, conv_to_icall (conv));
5915
5916 mono_mb_emit_stloc (mb, conv_arg);
5917 break;
5918
5919 case MARSHAL_ACTION_CONV_OUT:
5920 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5921 if (conv == -1) {
5922 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5923 mono_mb_emit_exception_marshal_directive (mb, msg);
5924 break;
5925 }
5926
5927 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5928 mono_mb_emit_ldarg (mb, argnum);
5929 mono_mb_emit_ldloc (mb, conv_arg);
5930 mono_mb_emit_icall (mb, conv_to_icall (conv));
5931 mono_mb_emit_byte (mb, CEE_STIND_REF);
5932 }
5933
5934 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5935 mono_mb_emit_ldloc (mb, conv_arg);
5936 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5937 mono_mb_emit_icall (mb, mono_free_bstr);
5938 else
5939 mono_mb_emit_icall (mb, mono_marshal_free);
5940 }
5941 break;
5942
5943 case MARSHAL_ACTION_PUSH:
5944 if (t->byref)
5945 mono_mb_emit_ldloc_addr (mb, conv_arg);
5946 else
5947 mono_mb_emit_ldloc (mb, conv_arg);
5948 break;
5949
5950 case MARSHAL_ACTION_CONV_RESULT:
5951 mono_mb_emit_stloc (mb, 0);
5952
5953 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5954 if (conv == -1) {
5955 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5956 mono_mb_emit_exception_marshal_directive (mb, msg);
5957 break;
5958 }
5959
5960 mono_mb_emit_ldloc (mb, 0);
5961 mono_mb_emit_icall (mb, conv_to_icall (conv));
5962 mono_mb_emit_stloc (mb, 3);
5963
5964 /* free the string */
5965 mono_mb_emit_ldloc (mb, 0);
5966 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5967 mono_mb_emit_icall (mb, mono_free_bstr);
5968 else
5969 mono_mb_emit_icall (mb, mono_marshal_free);
5970 break;
5971
5972 case MARSHAL_ACTION_MANAGED_CONV_IN:
5973 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5974
5975 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5976
5977 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5978 if (conv == -1) {
5979 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5980 mono_mb_emit_exception_marshal_directive (mb, msg);
5981 break;
5982 }
5983
5984 mono_mb_emit_ldarg (mb, argnum);
5985 if (t->byref)
5986 mono_mb_emit_byte (mb, CEE_LDIND_I);
5987 mono_mb_emit_icall (mb, conv_to_icall (conv));
5988 mono_mb_emit_stloc (mb, conv_arg);
5989 break;
5990
5991 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5992 if (t->byref) {
5993 if (conv_arg) {
5994 mono_mb_emit_ldarg (mb, argnum);
5995 mono_mb_emit_ldloc (mb, conv_arg);
5996 mono_mb_emit_icall (mb, conv_to_icall (conv));
5997 mono_mb_emit_byte (mb, CEE_STIND_I);
5998 }
5999 }
6000 break;
6001
6002 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6003 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6004 /* We need to make a copy so the caller is able to free it */
6005 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6006 else
6007 mono_mb_emit_icall (mb, conv_to_icall (conv));
6008 mono_mb_emit_stloc (mb, 3);
6009 break;
6010
6011 default:
6012 g_assert_not_reached ();
6013 }
6014
6015 return conv_arg;
6016 }
6017
6018 static int
6019 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6020 MonoMarshalSpec *spec, int conv_arg,
6021 MonoType **conv_arg_type, MarshalAction action)
6022 {
6023 MonoMethodBuilder *mb = m->mb;
6024
6025 switch (action){
6026 case MARSHAL_ACTION_CONV_IN: {
6027 MonoType *intptr_type;
6028 int dar_release_slot, pos;
6029
6030 intptr_type = &mono_defaults.int_class->byval_arg;
6031 conv_arg = mono_mb_add_local (mb, intptr_type);
6032 *conv_arg_type = intptr_type;
6033
6034 if (!sh_dangerous_add_ref)
6035 init_safe_handle ();
6036
6037 mono_mb_emit_ldarg (mb, argnum);
6038 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6039 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6040
6041 mono_mb_patch_branch (mb, pos);
6042 if (t->byref){
6043 /*
6044 * My tests in show that ref SafeHandles are not really
6045 * passed as ref objects. Instead a NULL is passed as the
6046 * value of the ref
6047 */
6048 mono_mb_emit_icon (mb, 0);
6049 mono_mb_emit_stloc (mb, conv_arg);
6050 break;
6051 }
6052
6053 /* Create local to hold the ref parameter to DangerousAddRef */
6054 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6055
6056 /* set release = false; */
6057 mono_mb_emit_icon (mb, 0);
6058 mono_mb_emit_stloc (mb, dar_release_slot);
6059
6060 /* safehandle.DangerousAddRef (ref release) */
6061 mono_mb_emit_ldarg (mb, argnum);
6062 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6063 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6064
6065 /* Pull the handle field from SafeHandle */
6066 mono_mb_emit_ldarg (mb, argnum);
6067 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6068 mono_mb_emit_byte (mb, CEE_LDIND_I);
6069 mono_mb_emit_stloc (mb, conv_arg);
6070
6071 break;
6072 }
6073
6074 case MARSHAL_ACTION_PUSH:
6075 if (t->byref)
6076 mono_mb_emit_ldloc_addr (mb, conv_arg);
6077 else
6078 mono_mb_emit_ldloc (mb, conv_arg);
6079 break;
6080
6081 case MARSHAL_ACTION_CONV_OUT: {
6082 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6083 int dar_release_slot = conv_arg + 1;
6084 int label_next;
6085
6086 if (!sh_dangerous_release)
6087 init_safe_handle ();
6088
6089 if (t->byref){
6090 MonoMethod *ctor;
6091
6092 /*
6093 * My tests indicate that ref SafeHandles parameters are not actually
6094 * passed by ref, but instead a new Handle is created regardless of
6095 * whether a change happens in the unmanaged side.
6096 *
6097 * Also, the Handle is created before calling into unmanaged code,
6098 * but we do not support that mechanism (getting to the original
6099 * handle) and it makes no difference where we create this
6100 */
6101 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6102 if (ctor == NULL){
6103 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6104 break;
6105 }
6106 /* refval = new SafeHandleDerived ()*/
6107 mono_mb_emit_ldarg (mb, argnum);
6108 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6109 mono_mb_emit_byte (mb, CEE_STIND_REF);
6110
6111 /* refval.handle = returned_handle */
6112 mono_mb_emit_ldarg (mb, argnum);
6113 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6114 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6115 mono_mb_emit_ldloc (mb, conv_arg);
6116 mono_mb_emit_byte (mb, CEE_STIND_I);
6117 } else {
6118 mono_mb_emit_ldloc (mb, dar_release_slot);
6119 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6120 mono_mb_emit_ldarg (mb, argnum);
6121 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6122 mono_mb_patch_branch (mb, label_next);
6123 }
6124 break;
6125 }
6126
6127 case MARSHAL_ACTION_CONV_RESULT: {
6128 MonoMethod *ctor = NULL;
6129 int intptr_handle_slot;
6130
6131 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6132 mono_mb_emit_byte (mb, CEE_POP);
6133 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
6134 break;
6135 }
6136
6137 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6138 if (ctor == NULL){
6139 mono_mb_emit_byte (mb, CEE_POP);
6140 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6141 break;
6142 }
6143 /* Store the IntPtr results into a local */
6144 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6145 mono_mb_emit_stloc (mb, intptr_handle_slot);
6146
6147 /* Create return value */
6148 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6149 mono_mb_emit_stloc (mb, 3);
6150
6151 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6152 mono_mb_emit_ldloc (mb, 3);
6153 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6154 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6155 mono_mb_emit_byte (mb, CEE_STIND_I);
6156 break;
6157 }
6158
6159 case MARSHAL_ACTION_MANAGED_CONV_IN:
6160 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6161 break;
6162
6163 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6164 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6165 break;
6166
6167 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6168 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6169 break;
6170 default:
6171 printf ("Unhandled case for MarshalAction: %d\n", action);
6172 }
6173
6174 return conv_arg;
6175 }
6176
6177 static int
6178 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6179 MonoMarshalSpec *spec, int conv_arg,
6180 MonoType **conv_arg_type, MarshalAction action)
6181 {
6182 MonoMethodBuilder *mb = m->mb;
6183
6184 switch (action){
6185 case MARSHAL_ACTION_CONV_IN: {
6186 MonoType *intptr_type;
6187
6188 intptr_type = &mono_defaults.int_class->byval_arg;
6189 conv_arg = mono_mb_add_local (mb, intptr_type);
6190 *conv_arg_type = intptr_type;
6191
6192 if (t->byref){
6193 mono_mb_emit_exception_marshal_directive (mb,
6194 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6195 break;
6196 }
6197 mono_mb_emit_ldarg_addr (mb, argnum);
6198 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6199 mono_mb_emit_byte (mb, CEE_ADD);
6200 mono_mb_emit_byte (mb, CEE_LDIND_I);
6201 mono_mb_emit_stloc (mb, conv_arg);
6202 break;
6203 }
6204
6205 case MARSHAL_ACTION_PUSH:
6206 mono_mb_emit_ldloc (mb, conv_arg);
6207 break;
6208
6209 case MARSHAL_ACTION_CONV_OUT: {
6210 /* no resource release required */
6211 break;
6212 }
6213
6214 case MARSHAL_ACTION_CONV_RESULT: {
6215 mono_mb_emit_exception_marshal_directive (mb,
6216 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6217 break;
6218 }
6219
6220 case MARSHAL_ACTION_MANAGED_CONV_IN:
6221 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6222 break;
6223
6224 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6225 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6226 break;
6227
6228 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6229 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6230 break;
6231 default:
6232 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6233 }
6234
6235 return conv_arg;
6236 }
6237
6238 static int
6239 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6240 MonoMarshalSpec *spec,
6241 int conv_arg, MonoType **conv_arg_type,
6242 MarshalAction action)
6243 {
6244 MonoMethodBuilder *mb = m->mb;
6245 MonoClass *klass = mono_class_from_mono_type (t);
6246 int pos, pos2, loc;
6247
6248 switch (action) {
6249 case MARSHAL_ACTION_CONV_IN:
6250 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6251 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6252
6253 m->orig_conv_args [argnum] = 0;
6254
6255 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6256 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
6257 mono_mb_emit_exception_marshal_directive (mb, msg);
6258 break;
6259 }
6260
6261 if (klass->delegate) {
6262 if (t->byref) {
6263 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6264 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6265 mono_mb_emit_exception_marshal_directive (mb, msg);
6266 }
6267 mono_mb_emit_byte (mb, CEE_LDNULL);
6268 mono_mb_emit_stloc (mb, conv_arg);
6269 } else {
6270 mono_mb_emit_ldarg (mb, argnum);
6271 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6272 mono_mb_emit_stloc (mb, conv_arg);
6273 }
6274 } else if (klass == mono_defaults.stringbuilder_class) {
6275 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6276 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6277
6278 if (t->byref) {
6279 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6280 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
6281 mono_mb_emit_exception_marshal_directive (mb, msg);
6282 }
6283 break;
6284 }
6285
6286 mono_mb_emit_ldarg (mb, argnum);
6287
6288 if (conv != -1)
6289 mono_mb_emit_icall (mb, conv_to_icall (conv));
6290 else {
6291 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6292 MonoException *exc = mono_get_exception_not_implemented (msg);
6293 g_warning ("%s", msg);
6294 g_free (msg);
6295 mono_raise_exception (exc);
6296 }
6297
6298 mono_mb_emit_stloc (mb, conv_arg);
6299 } else if (klass->blittable) {
6300 mono_mb_emit_byte (mb, CEE_LDNULL);
6301 mono_mb_emit_stloc (mb, conv_arg);
6302
6303 mono_mb_emit_ldarg (mb, argnum);
6304 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6305
6306 mono_mb_emit_ldarg (mb, argnum);
6307 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6308 mono_mb_emit_stloc (mb, conv_arg);
6309
6310 mono_mb_patch_branch (mb, pos);
6311 break;
6312 } else {
6313 mono_mb_emit_byte (mb, CEE_LDNULL);
6314 mono_mb_emit_stloc (mb, conv_arg);
6315
6316 if (t->byref) {
6317 /* we dont need any conversions for out parameters */
6318 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6319 break;
6320
6321 mono_mb_emit_ldarg (mb, argnum);
6322 mono_mb_emit_byte (mb, CEE_LDIND_I);
6323
6324 } else {
6325 mono_mb_emit_ldarg (mb, argnum);
6326 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6327 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6328 }
6329
6330 /* store the address of the source into local variable 0 */
6331 mono_mb_emit_stloc (mb, 0);
6332 mono_mb_emit_ldloc (mb, 0);
6333 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6334
6335 /* allocate space for the native struct and store the address */
6336 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6337 mono_mb_emit_byte (mb, CEE_PREFIX1);
6338 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6339 mono_mb_emit_stloc (mb, conv_arg);
6340
6341 if (t->byref) {
6342 /* Need to store the original buffer so we can free it later */
6343 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6344 mono_mb_emit_ldloc (mb, conv_arg);
6345 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6346 }
6347
6348 /* set the src_ptr */
6349 mono_mb_emit_ldloc (mb, 0);
6350 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6351 mono_mb_emit_stloc (mb, 0);
6352
6353 /* set dst_ptr */
6354 mono_mb_emit_ldloc (mb, conv_arg);
6355 mono_mb_emit_stloc (mb, 1);
6356
6357 /* emit valuetype conversion code */
6358 emit_struct_conv (mb, klass, FALSE);
6359
6360 mono_mb_patch_branch (mb, pos);
6361 }
6362 break;
6363
6364 case MARSHAL_ACTION_CONV_OUT:
6365 if (klass == mono_defaults.stringbuilder_class) {
6366 gboolean need_free;
6367 MonoMarshalNative encoding;
6368 MonoMarshalConv conv;
6369
6370 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6371 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6372
6373 g_assert (encoding != -1);
6374
6375 if (t->byref) {
6376 g_assert ((t->attrs & PARAM_ATTRIBUTE_OUT));
6377
6378 need_free = TRUE;
6379
6380 mono_mb_emit_ldarg (mb, argnum);
6381 mono_mb_emit_ldloc (mb, conv_arg);
6382
6383 switch (encoding) {
6384 case MONO_NATIVE_LPWSTR:
6385 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
6386 break;
6387 case MONO_NATIVE_LPSTR:
6388 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6389 break;
6390 default:
6391 g_assert_not_reached ();
6392 }
6393
6394 mono_mb_emit_byte (mb, CEE_STIND_REF);
6395 } else {
6396 mono_mb_emit_ldarg (mb, argnum);
6397 mono_mb_emit_ldloc (mb, conv_arg);
6398
6399 mono_mb_emit_icall (mb, conv_to_icall (conv));
6400 }
6401
6402 if (need_free) {
6403 mono_mb_emit_ldloc (mb, conv_arg);
6404 mono_mb_emit_icall (mb, mono_marshal_free);
6405 }
6406 break;
6407 }
6408
6409 if (klass->delegate) {
6410 if (t->byref) {
6411 mono_mb_emit_ldarg (mb, argnum);
6412 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6413 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6414 mono_mb_emit_ldloc (mb, conv_arg);
6415 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6416 mono_mb_emit_byte (mb, CEE_STIND_REF);
6417 }
6418 break;
6419 }
6420
6421 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6422 /* allocate a new object */
6423 mono_mb_emit_ldarg (mb, argnum);
6424 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6425 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6426 mono_mb_emit_byte (mb, CEE_STIND_REF);
6427 }
6428
6429 /* dst = *argument */
6430 mono_mb_emit_ldarg (mb, argnum);
6431
6432 if (t->byref)
6433 mono_mb_emit_byte (mb, CEE_LDIND_I);
6434
6435 mono_mb_emit_stloc (mb, 1);
6436
6437 mono_mb_emit_ldloc (mb, 1);
6438 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6439
6440 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6441 mono_mb_emit_ldloc (mb, 1);
6442 mono_mb_emit_icon (mb, sizeof (MonoObject));
6443 mono_mb_emit_byte (mb, CEE_ADD);
6444 mono_mb_emit_stloc (mb, 1);
6445
6446 /* src = tmp_locals [i] */
6447 mono_mb_emit_ldloc (mb, conv_arg);
6448 mono_mb_emit_stloc (mb, 0);
6449
6450 /* emit valuetype conversion code */
6451 emit_struct_conv (mb, klass, TRUE);
6452
6453 /* Free the structure returned by the native code */
6454 emit_struct_free (mb, klass, conv_arg);
6455
6456 if (m->orig_conv_args [argnum]) {
6457 /*
6458 * If the native function changed the pointer, then free
6459 * the original structure plus the new pointer.
6460 */
6461 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6462 mono_mb_emit_ldloc (mb, conv_arg);
6463 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6464
6465 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6466 g_assert (m->orig_conv_args [argnum]);
6467
6468 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6469 }
6470
6471 mono_mb_emit_ldloc (mb, conv_arg);
6472 mono_mb_emit_icall (mb, g_free);
6473
6474 mono_mb_patch_branch (mb, pos2);
6475 }
6476 }
6477 else
6478 /* Free the original structure passed to native code */
6479 emit_struct_free (mb, klass, conv_arg);
6480
6481 mono_mb_patch_branch (mb, pos);
6482 break;
6483
6484 case MARSHAL_ACTION_PUSH:
6485 if (t->byref)
6486 mono_mb_emit_ldloc_addr (mb, conv_arg);
6487 else
6488 mono_mb_emit_ldloc (mb, conv_arg);
6489 break;
6490
6491 case MARSHAL_ACTION_CONV_RESULT:
6492 if (klass->delegate) {
6493 g_assert (!t->byref);
6494 mono_mb_emit_stloc (mb, 0);
6495 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6496 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6497 mono_mb_emit_ldloc (mb, 0);
6498 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6499 mono_mb_emit_stloc (mb, 3);
6500 } else {
6501 /* set src */
6502 mono_mb_emit_stloc (mb, 0);
6503
6504 /* Make a copy since emit_conv modifies local 0 */
6505 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6506 mono_mb_emit_ldloc (mb, 0);
6507 mono_mb_emit_stloc (mb, loc);
6508
6509 mono_mb_emit_byte (mb, CEE_LDNULL);
6510 mono_mb_emit_stloc (mb, 3);
6511
6512 mono_mb_emit_ldloc (mb, 0);
6513 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6514
6515 /* allocate result object */
6516
6517 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6518 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6519 mono_mb_emit_stloc (mb, 3);
6520
6521 /* set dst */
6522
6523 mono_mb_emit_ldloc (mb, 3);
6524 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6525 mono_mb_emit_stloc (mb, 1);
6526
6527 /* emit conversion code */
6528 emit_struct_conv (mb, klass, TRUE);
6529
6530 emit_struct_free (mb, klass, loc);
6531
6532 /* Free the pointer allocated by unmanaged code */
6533 mono_mb_emit_ldloc (mb, loc);
6534 mono_mb_emit_icall (mb, g_free);
6535 mono_mb_patch_branch (mb, pos);
6536 }
6537 break;
6538
6539 case MARSHAL_ACTION_MANAGED_CONV_IN:
6540 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6541
6542 if (klass->delegate) {
6543 g_assert (!t->byref);
6544 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6545 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6546 mono_mb_emit_ldarg (mb, argnum);
6547 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6548 mono_mb_emit_stloc (mb, conv_arg);
6549 break;
6550 }
6551
6552 if (klass == mono_defaults.stringbuilder_class) {
6553 MonoMarshalNative encoding;
6554
6555 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6556
6557 // FIXME:
6558 g_assert (encoding == MONO_NATIVE_LPSTR);
6559
6560 g_assert (!t->byref);
6561 g_assert (encoding != -1);
6562
6563 mono_mb_emit_ldarg (mb, argnum);
6564 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6565 mono_mb_emit_stloc (mb, conv_arg);
6566 break;
6567 }
6568
6569 /* The class can not have an automatic layout */
6570 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6571 mono_mb_emit_auto_layout_exception (mb, klass);
6572 break;
6573 }
6574
6575 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6576 mono_mb_emit_byte (mb, CEE_LDNULL);
6577 mono_mb_emit_stloc (mb, conv_arg);
6578 break;
6579 }
6580
6581 /* Set src */
6582 mono_mb_emit_ldarg (mb, argnum);
6583 if (t->byref) {
6584 int pos2;
6585
6586 /* Check for NULL and raise an exception */
6587 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6588
6589 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6590
6591 mono_mb_patch_branch (mb, pos2);
6592 mono_mb_emit_ldarg (mb, argnum);
6593 mono_mb_emit_byte (mb, CEE_LDIND_I);
6594 }
6595
6596 mono_mb_emit_stloc (mb, 0);
6597
6598 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6599 mono_mb_emit_stloc (mb, conv_arg);
6600
6601 mono_mb_emit_ldloc (mb, 0);
6602 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6603
6604 /* Create and set dst */
6605 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6606 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6607 mono_mb_emit_stloc (mb, conv_arg);
6608 mono_mb_emit_ldloc (mb, conv_arg);
6609 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6610 mono_mb_emit_stloc (mb, 1);
6611
6612 /* emit valuetype conversion code */
6613 emit_struct_conv (mb, klass, TRUE);
6614
6615 mono_mb_patch_branch (mb, pos);
6616 break;
6617
6618 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6619 if (t->byref) {
6620 /* Check for null */
6621 mono_mb_emit_ldloc (mb, conv_arg);
6622 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6623 mono_mb_emit_ldarg (mb, argnum);
6624 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6625 mono_mb_emit_byte (mb, CEE_STIND_REF);
6626 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6627
6628 mono_mb_patch_branch (mb, pos);
6629
6630 /* Set src */
6631 mono_mb_emit_ldloc (mb, conv_arg);
6632 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6633 mono_mb_emit_stloc (mb, 0);
6634
6635 /* Allocate and set dest */
6636 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6637 mono_mb_emit_byte (mb, CEE_CONV_I);
6638 mono_mb_emit_icall (mb, mono_marshal_alloc);
6639 mono_mb_emit_stloc (mb, 1);
6640
6641 /* Update argument pointer */
6642 mono_mb_emit_ldarg (mb, argnum);
6643 mono_mb_emit_ldloc (mb, 1);
6644 mono_mb_emit_byte (mb, CEE_STIND_I);
6645
6646 /* emit valuetype conversion code */
6647 emit_struct_conv (mb, klass, FALSE);
6648
6649 mono_mb_patch_branch (mb, pos2);
6650 } else {
6651 /* byval [Out] marshalling */
6652
6653 /* FIXME: Handle null */
6654
6655 /* Set src */
6656 mono_mb_emit_ldloc (mb, conv_arg);
6657 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6658 mono_mb_emit_stloc (mb, 0);
6659
6660 /* Set dest */
6661 mono_mb_emit_ldarg (mb, argnum);
6662 mono_mb_emit_stloc (mb, 1);
6663
6664 /* emit valuetype conversion code */
6665 emit_struct_conv (mb, klass, FALSE);
6666 }
6667 break;
6668
6669 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6670 if (klass->delegate) {
6671 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6672 mono_mb_emit_stloc (mb, 3);
6673 break;
6674 }
6675
6676 /* The class can not have an automatic layout */
6677 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6678 mono_mb_emit_auto_layout_exception (mb, klass);
6679 break;
6680 }
6681
6682 mono_mb_emit_stloc (mb, 0);
6683 /* Check for null */
6684 mono_mb_emit_ldloc (mb, 0);
6685 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6686 mono_mb_emit_byte (mb, CEE_LDNULL);
6687 mono_mb_emit_stloc (mb, 3);
6688 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6689
6690 mono_mb_patch_branch (mb, pos);
6691
6692 /* Set src */
6693 mono_mb_emit_ldloc (mb, 0);
6694 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6695 mono_mb_emit_stloc (mb, 0);
6696
6697 /* Allocate and set dest */
6698 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6699 mono_mb_emit_byte (mb, CEE_CONV_I);
6700 mono_mb_emit_icall (mb, mono_marshal_alloc);
6701 mono_mb_emit_byte (mb, CEE_DUP);
6702 mono_mb_emit_stloc (mb, 1);
6703 mono_mb_emit_stloc (mb, 3);
6704
6705 emit_struct_conv (mb, klass, FALSE);
6706
6707 mono_mb_patch_branch (mb, pos2);
6708 break;
6709
6710 default:
6711 g_assert_not_reached ();
6712 }
6713
6714 return conv_arg;
6715 }
6716
6717 static int
6718 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6719 MonoMarshalSpec *spec,
6720 int conv_arg, MonoType **conv_arg_type,
6721 MarshalAction action)
6722 {
6723 MonoMethodBuilder *mb = m->mb;
6724 static MonoMethod *get_object_for_native_variant = NULL;
6725 static MonoMethod *get_native_variant_for_object = NULL;
6726
6727 mono_init_com_types ();
6728
6729 if (!get_object_for_native_variant)
6730 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6731 g_assert (get_object_for_native_variant);
6732
6733 if (!get_native_variant_for_object)
6734 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6735 g_assert (get_native_variant_for_object);
6736
6737 switch (action) {
6738 case MARSHAL_ACTION_CONV_IN: {
6739 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6740
6741 if (t->byref)
6742 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6743 else
6744 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6745
6746 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6747 break;
6748
6749 mono_mb_emit_ldarg (mb, argnum);
6750 if (t->byref)
6751 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6752 mono_mb_emit_ldloc_addr (mb, conv_arg);
6753 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6754 break;
6755 }
6756
6757 case MARSHAL_ACTION_CONV_OUT: {
6758 static MonoMethod *variant_clear = NULL;
6759
6760 if (!variant_clear)
6761 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
6762 g_assert (variant_clear);
6763
6764
6765 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6766 mono_mb_emit_ldarg (mb, argnum);
6767 mono_mb_emit_ldloc_addr (mb, conv_arg);
6768 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6769 mono_mb_emit_byte (mb, CEE_STIND_REF);
6770 }
6771
6772 mono_mb_emit_ldloc_addr (mb, conv_arg);
6773 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6774 break;
6775 }
6776
6777 case MARSHAL_ACTION_PUSH:
6778 if (t->byref)
6779 mono_mb_emit_ldloc_addr (mb, conv_arg);
6780 else
6781 mono_mb_emit_ldloc (mb, conv_arg);
6782 break;
6783
6784 case MARSHAL_ACTION_CONV_RESULT: {
6785 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6786 mono_mb_emit_exception_marshal_directive (mb, msg);
6787 break;
6788 }
6789
6790 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6791 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6792
6793 if (t->byref)
6794 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6795 else
6796 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6797
6798 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6799 break;
6800
6801 if (t->byref)
6802 mono_mb_emit_ldarg (mb, argnum);
6803 else
6804 mono_mb_emit_ldarg_addr (mb, argnum);
6805 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6806 mono_mb_emit_stloc (mb, conv_arg);
6807 break;
6808 }
6809
6810 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6811 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6812 mono_mb_emit_ldloc (mb, conv_arg);
6813 mono_mb_emit_ldarg (mb, argnum);
6814 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6815 }
6816 break;
6817 }
6818
6819 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6820 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6821 mono_mb_emit_exception_marshal_directive (mb, msg);
6822 break;
6823 }
6824
6825 default:
6826 g_assert_not_reached ();
6827 }
6828
6829 return conv_arg;
6830 }
6831
6832 static int
6833 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6834 MonoMarshalSpec *spec,
6835 int conv_arg, MonoType **conv_arg_type,
6836 MarshalAction action)
6837 {
6838 MonoMethodBuilder *mb = m->mb;
6839 MonoClass *klass = mono_class_from_mono_type (t);
6840 gboolean need_convert, need_free;
6841 MonoMarshalNative encoding;
6842
6843 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6844
6845 switch (action) {
6846 case MARSHAL_ACTION_CONV_IN:
6847 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6848 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6849
6850 if (klass->element_class->blittable) {
6851 mono_mb_emit_ldarg (mb, argnum);
6852 if (t->byref)
6853 mono_mb_emit_byte (mb, CEE_LDIND_I);
6854 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6855 mono_mb_emit_stloc (mb, conv_arg);
6856 } else {
6857 MonoClass *eklass;
6858 guint32 label1, label2, label3;
6859 int index_var, src_var, dest_ptr, esize;
6860 MonoMarshalConv conv;
6861 gboolean is_string = FALSE;
6862
6863 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6864
6865 eklass = klass->element_class;
6866
6867 if (eklass == mono_defaults.string_class) {
6868 is_string = TRUE;
6869 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6870 }
6871 else if (eklass == mono_defaults.stringbuilder_class) {
6872 is_string = TRUE;
6873 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6874 }
6875 else
6876 conv = -1;
6877
6878 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6879 mono_mb_emit_ldarg (mb, argnum);
6880 if (t->byref)
6881 mono_mb_emit_byte (mb, CEE_LDIND_I);
6882 mono_mb_emit_stloc (mb, src_var);
6883
6884 /* Check null */
6885 mono_mb_emit_ldloc (mb, src_var);
6886 mono_mb_emit_stloc (mb, conv_arg);
6887 mono_mb_emit_ldloc (mb, src_var);
6888 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6889
6890 if (is_string) {
6891 if (conv == -1) {
6892 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6893 MonoException *exc = mono_get_exception_not_implemented (msg);
6894 g_warning ("%s", msg);
6895 g_free (msg);
6896 mono_raise_exception (exc);
6897 }
6898 }
6899
6900 if (is_string)
6901 esize = sizeof (gpointer);
6902 else
6903 esize = mono_class_native_size (eklass, NULL);
6904
6905 /* allocate space for the native struct and store the address */
6906 mono_mb_emit_icon (mb, esize);
6907 mono_mb_emit_ldloc (mb, src_var);
6908 mono_mb_emit_byte (mb, CEE_LDLEN);
6909
6910 if (eklass == mono_defaults.string_class) {
6911 /* Make the array bigger for the terminating null */
6912 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6913 mono_mb_emit_byte (mb, CEE_ADD);
6914 }
6915 mono_mb_emit_byte (mb, CEE_MUL);
6916 mono_mb_emit_byte (mb, CEE_PREFIX1);
6917 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6918 mono_mb_emit_stloc (mb, conv_arg);
6919
6920 mono_mb_emit_ldloc (mb, conv_arg);
6921 mono_mb_emit_stloc (mb, dest_ptr);
6922
6923 /* Emit marshalling loop */
6924 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6925 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6926 mono_mb_emit_stloc (mb, index_var);
6927 label2 = mono_mb_get_label (mb);
6928 mono_mb_emit_ldloc (mb, index_var);
6929 mono_mb_emit_ldloc (mb, src_var);
6930 mono_mb_emit_byte (mb, CEE_LDLEN);
6931 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6932
6933 /* Emit marshalling code */
6934
6935 if (is_string) {
6936 mono_mb_emit_ldloc (mb, dest_ptr);
6937 mono_mb_emit_ldloc (mb, src_var);
6938 mono_mb_emit_ldloc (mb, index_var);
6939 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6940 mono_mb_emit_icall (mb, conv_to_icall (conv));
6941 mono_mb_emit_byte (mb, CEE_STIND_I);
6942 } else {
6943 /* set the src_ptr */
6944 mono_mb_emit_ldloc (mb, src_var);
6945 mono_mb_emit_ldloc (mb, index_var);
6946 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6947 mono_mb_emit_stloc (mb, 0);
6948
6949 /* set dst_ptr */
6950 mono_mb_emit_ldloc (mb, dest_ptr);
6951 mono_mb_emit_stloc (mb, 1);
6952
6953 /* emit valuetype conversion code */
6954 emit_struct_conv (mb, eklass, FALSE);
6955 }
6956
6957 mono_mb_emit_add_to_local (mb, index_var, 1);
6958 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6959
6960 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6961
6962 mono_mb_patch_branch (mb, label3);
6963
6964 if (eklass == mono_defaults.string_class) {
6965 /* Null terminate */
6966 mono_mb_emit_ldloc (mb, dest_ptr);
6967 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6968 mono_mb_emit_byte (mb, CEE_STIND_REF);
6969 }
6970
6971 mono_mb_patch_branch (mb, label1);
6972 }
6973
6974 break;
6975
6976 case MARSHAL_ACTION_CONV_OUT:
6977 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6978 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);
6979 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6980 m->piinfo, spec);
6981
6982 if (need_convert || need_free) {
6983 /* FIXME: Optimize blittable case */
6984 MonoClass *eklass;
6985 guint32 label1, label2, label3;
6986 int index_var, src_ptr, loc, esize;
6987
6988 eklass = klass->element_class;
6989 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6990 esize = sizeof (gpointer);
6991 else
6992 esize = mono_class_native_size (eklass, NULL);
6993 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6994 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6995
6996 /* Check null */
6997 mono_mb_emit_ldarg (mb, argnum);
6998 if (t->byref)
6999 mono_mb_emit_byte (mb, CEE_LDIND_I);
7000 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7001
7002 mono_mb_emit_ldloc (mb, conv_arg);
7003 mono_mb_emit_stloc (mb, src_ptr);
7004
7005 /* Emit marshalling loop */
7006 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7007 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7008 mono_mb_emit_stloc (mb, index_var);
7009 label2 = mono_mb_get_label (mb);
7010 mono_mb_emit_ldloc (mb, index_var);
7011 mono_mb_emit_ldarg (mb, argnum);
7012 if (t->byref)
7013 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7014 mono_mb_emit_byte (mb, CEE_LDLEN);
7015 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7016
7017 /* Emit marshalling code */
7018
7019 if (eklass == mono_defaults.stringbuilder_class) {
7020 gboolean need_free2;
7021 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7022
7023 g_assert (conv != -1);
7024
7025 /* dest */
7026 mono_mb_emit_ldarg (mb, argnum);
7027 if (t->byref)
7028 mono_mb_emit_byte (mb, CEE_LDIND_I);
7029 mono_mb_emit_ldloc (mb, index_var);
7030 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7031
7032 /* src */
7033 mono_mb_emit_ldloc (mb, src_ptr);
7034 mono_mb_emit_byte (mb, CEE_LDIND_I);
7035
7036 mono_mb_emit_icall (mb, conv_to_icall (conv));
7037
7038 if (need_free) {
7039 /* src */
7040 mono_mb_emit_ldloc (mb, src_ptr);
7041 mono_mb_emit_byte (mb, CEE_LDIND_I);
7042
7043 mono_mb_emit_icall (mb, mono_marshal_free);
7044 }
7045 }
7046 else if (eklass == mono_defaults.string_class) {
7047 if (need_free) {
7048 /* src */
7049 mono_mb_emit_ldloc (mb, src_ptr);
7050 mono_mb_emit_byte (mb, CEE_LDIND_I);
7051
7052 mono_mb_emit_icall (mb, mono_marshal_free);
7053 }
7054 }
7055 else {
7056 if (need_convert) {
7057 /* set the src_ptr */
7058 mono_mb_emit_ldloc (mb, src_ptr);
7059 mono_mb_emit_stloc (mb, 0);
7060
7061 /* set dst_ptr */
7062 mono_mb_emit_ldarg (mb, argnum);
7063 if (t->byref)
7064 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7065 mono_mb_emit_ldloc (mb, index_var);
7066 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7067 mono_mb_emit_stloc (mb, 1);
7068
7069 /* emit valuetype conversion code */
7070 emit_struct_conv (mb, eklass, TRUE);
7071 }
7072
7073 if (need_free) {
7074 mono_mb_emit_ldloc (mb, src_ptr);
7075 mono_mb_emit_stloc (mb, loc);
7076 mono_mb_emit_ldloc (mb, loc);
7077
7078 emit_struct_free (mb, eklass, loc);
7079 }
7080 }
7081
7082 mono_mb_emit_add_to_local (mb, index_var, 1);
7083 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7084
7085 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7086
7087 mono_mb_patch_branch (mb, label1);
7088 mono_mb_patch_branch (mb, label3);
7089 }
7090
7091 if (klass->element_class->blittable) {
7092 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
7093
7094 mono_mb_emit_ldarg (mb, argnum);
7095 mono_mb_emit_ldloc (mb, conv_arg);
7096 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
7097 }
7098
7099 break;
7100
7101 case MARSHAL_ACTION_PUSH:
7102 if (t->byref)
7103 mono_mb_emit_ldloc_addr (mb, conv_arg);
7104 else
7105 mono_mb_emit_ldloc (mb, conv_arg);
7106 break;
7107
7108 case MARSHAL_ACTION_CONV_RESULT:
7109 /* fixme: we need conversions here */
7110 mono_mb_emit_stloc (mb, 3);
7111 break;
7112
7113 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7114 MonoClass *eklass;
7115 guint32 label1, label2, label3;
7116 int index_var, src_ptr, loc, esize, param_num, num_elem;
7117 MonoMarshalConv conv;
7118 gboolean is_string = FALSE;
7119
7120 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7121 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7122
7123 if (t->byref) {
7124 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7125 mono_mb_emit_exception_marshal_directive (mb, msg);
7126 return conv_arg;
7127 }
7128 if (!spec) {
7129 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7130 mono_mb_emit_exception_marshal_directive (mb, msg);
7131 return conv_arg;
7132 }
7133 if (spec->native != MONO_NATIVE_LPARRAY) {
7134 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7135 mono_mb_emit_exception_marshal_directive (mb, msg);
7136 return conv_arg;
7137 }
7138
7139 /* FIXME: t is from the method which is wrapped, not the delegate type */
7140 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7141
7142 param_num = spec->data.array_data.param_num;
7143 num_elem = spec->data.array_data.num_elem;
7144 if (spec->data.array_data.elem_mult == 0)
7145 /* param_num is not specified */
7146 param_num = -1;
7147
7148 if (param_num == -1) {
7149 if (num_elem <= 0) {
7150 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7151 mono_mb_emit_exception_marshal_directive (mb, msg);
7152 return conv_arg;
7153 }
7154 }
7155
7156 /* FIXME: Optimize blittable case */
7157
7158 eklass = klass->element_class;
7159 if (eklass == mono_defaults.string_class) {
7160 is_string = TRUE;
7161 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7162 }
7163 else if (eklass == mono_defaults.stringbuilder_class) {
7164 is_string = TRUE;
7165 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7166 }
7167 else
7168 conv = -1;
7169
7170 mono_marshal_load_type_info (eklass);
7171
7172 if (is_string)
7173 esize = sizeof (gpointer);
7174 else
7175 esize = mono_class_native_size (eklass, NULL);
7176 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7177 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7178
7179 mono_mb_emit_byte (mb, CEE_LDNULL);
7180 mono_mb_emit_stloc (mb, conv_arg);
7181
7182 /* Check param index */
7183 if (param_num != -1) {
7184 if (param_num >= m->sig->param_count) {
7185 char *msg = g_strdup ("Array size control parameter index is out of range.");
7186 mono_mb_emit_exception_marshal_directive (mb, msg);
7187 return conv_arg;
7188 }
7189 switch (m->sig->params [param_num]->type) {
7190 case MONO_TYPE_I1:
7191 case MONO_TYPE_U1:
7192 case MONO_TYPE_I2:
7193 case MONO_TYPE_U2:
7194 case MONO_TYPE_I4:
7195 case MONO_TYPE_U4:
7196 case MONO_TYPE_I:
7197 case MONO_TYPE_U:
7198 case MONO_TYPE_I8:
7199 case MONO_TYPE_U8:
7200 break;
7201 default: {
7202 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7203 mono_mb_emit_exception_marshal_directive (mb, msg);
7204 return conv_arg;
7205 }
7206 }
7207 }
7208
7209 /* Check null */
7210 mono_mb_emit_ldarg (mb, argnum);
7211 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7212
7213 mono_mb_emit_ldarg (mb, argnum);
7214 mono_mb_emit_stloc (mb, src_ptr);
7215
7216 /* Create managed array */
7217 /*
7218 * The LPArray marshalling spec says that sometimes param_num starts
7219 * from 1, sometimes it starts from 0. But MS seems to allways start
7220 * from 0.
7221 */
7222
7223 if (param_num == -1) {
7224 mono_mb_emit_icon (mb, num_elem);
7225 } else {
7226 mono_mb_emit_ldarg (mb, param_num);
7227 if (num_elem > 0) {
7228 mono_mb_emit_icon (mb, num_elem);
7229 mono_mb_emit_byte (mb, CEE_ADD);
7230 }
7231 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
7232 }
7233
7234 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7235 mono_mb_emit_stloc (mb, conv_arg);
7236
7237 if (eklass->blittable) {
7238 mono_mb_emit_ldloc (mb, conv_arg);
7239 mono_mb_emit_byte (mb, CEE_CONV_I);
7240 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7241 mono_mb_emit_byte (mb, CEE_ADD);
7242 mono_mb_emit_ldarg (mb, argnum);
7243 mono_mb_emit_ldloc (mb, conv_arg);
7244 mono_mb_emit_byte (mb, CEE_LDLEN);
7245 mono_mb_emit_icon (mb, esize);
7246 mono_mb_emit_byte (mb, CEE_MUL);
7247 mono_mb_emit_byte (mb, CEE_PREFIX1);
7248 mono_mb_emit_byte (mb, CEE_CPBLK);
7249 break;
7250 }
7251
7252 /* Emit marshalling loop */
7253 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7254 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7255 mono_mb_emit_stloc (mb, index_var);
7256 label2 = mono_mb_get_label (mb);
7257 mono_mb_emit_ldloc (mb, index_var);
7258 mono_mb_emit_ldloc (mb, conv_arg);
7259 mono_mb_emit_byte (mb, CEE_LDLEN);
7260 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7261
7262 /* Emit marshalling code */
7263 if (is_string) {
7264 g_assert (conv != -1);
7265
7266 mono_mb_emit_ldloc (mb, conv_arg);
7267 mono_mb_emit_ldloc (mb, index_var);
7268
7269 mono_mb_emit_ldloc (mb, src_ptr);
7270 mono_mb_emit_byte (mb, CEE_LDIND_I);
7271
7272 mono_mb_emit_icall (mb, conv_to_icall (conv));
7273 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7274 }
7275 else {
7276 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7277 mono_mb_emit_exception_marshal_directive (mb, msg);
7278 return conv_arg;
7279 }
7280
7281 mono_mb_emit_add_to_local (mb, index_var, 1);
7282 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7283
7284 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7285
7286 mono_mb_patch_branch (mb, label1);
7287 mono_mb_patch_branch (mb, label3);
7288
7289 break;
7290 }
7291 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7292 MonoClass *eklass;
7293 guint32 label1, label2, label3;
7294 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7295 MonoMarshalConv conv;
7296 gboolean is_string = FALSE;
7297
7298 if (!spec)
7299 /* Already handled in CONV_IN */
7300 break;
7301
7302 /* These are already checked in CONV_IN */
7303 g_assert (!t->byref);
7304 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7305 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7306
7307 param_num = spec->data.array_data.param_num;
7308 num_elem = spec->data.array_data.num_elem;
7309
7310 if (spec->data.array_data.elem_mult == 0)
7311 /* param_num is not specified */
7312 param_num = -1;
7313
7314 if (param_num == -1) {
7315 if (num_elem <= 0) {
7316 g_assert_not_reached ();
7317 }
7318 }
7319
7320 /* FIXME: Optimize blittable case */
7321
7322 eklass = klass->element_class;
7323 if (eklass == mono_defaults.string_class) {
7324 is_string = TRUE;
7325 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7326 }
7327 else if (eklass == mono_defaults.stringbuilder_class) {
7328 is_string = TRUE;
7329 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7330 }
7331 else
7332 conv = -1;
7333
7334 mono_marshal_load_type_info (eklass);
7335
7336 if (is_string)
7337 esize = sizeof (gpointer);
7338 else
7339 esize = mono_class_native_size (eklass, NULL);
7340
7341 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7342 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7343
7344 /* Check null */
7345 mono_mb_emit_ldloc (mb, conv_arg);
7346 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7347
7348 mono_mb_emit_ldarg (mb, argnum);
7349 mono_mb_emit_stloc (mb, dest_ptr);
7350
7351 if (eklass->blittable) {
7352 /* dest */
7353 mono_mb_emit_ldarg (mb, argnum);
7354 /* src */
7355 mono_mb_emit_ldloc (mb, conv_arg);
7356 mono_mb_emit_byte (mb, CEE_CONV_I);
7357 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7358 mono_mb_emit_byte (mb, CEE_ADD);
7359 /* length */
7360 mono_mb_emit_ldloc (mb, conv_arg);
7361 mono_mb_emit_byte (mb, CEE_LDLEN);
7362 mono_mb_emit_icon (mb, esize);
7363 mono_mb_emit_byte (mb, CEE_MUL);
7364 mono_mb_emit_byte (mb, CEE_PREFIX1);
7365 mono_mb_emit_byte (mb, CEE_CPBLK);
7366 break;
7367 }
7368
7369 /* Emit marshalling loop */
7370 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7371 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7372 mono_mb_emit_stloc (mb, index_var);
7373 label2 = mono_mb_get_label (mb);
7374 mono_mb_emit_ldloc (mb, index_var);
7375 mono_mb_emit_ldloc (mb, conv_arg);
7376 mono_mb_emit_byte (mb, CEE_LDLEN);
7377 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7378
7379 /* Emit marshalling code */
7380 if (is_string) {
7381 g_assert (conv != -1);
7382
7383 /* dest */
7384 mono_mb_emit_ldloc (mb, dest_ptr);
7385
7386 /* src */
7387 mono_mb_emit_ldloc (mb, conv_arg);
7388 mono_mb_emit_ldloc (mb, index_var);
7389
7390 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7391
7392 mono_mb_emit_icall (mb, conv_to_icall (conv));
7393 mono_mb_emit_byte (mb, CEE_STIND_I);
7394 }
7395 else {
7396 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7397 mono_mb_emit_exception_marshal_directive (mb, msg);
7398 return conv_arg;
7399 }
7400
7401 mono_mb_emit_add_to_local (mb, index_var, 1);
7402 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7403
7404 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7405
7406 mono_mb_patch_branch (mb, label1);
7407 mono_mb_patch_branch (mb, label3);
7408
7409 break;
7410 }
7411 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7412 MonoClass *eklass;
7413 guint32 label1, label2, label3;
7414 int index_var, src, dest, esize;
7415 MonoMarshalConv conv = -1;
7416 gboolean is_string = FALSE;
7417
7418 g_assert (!t->byref);
7419
7420 eklass = klass->element_class;
7421
7422 mono_marshal_load_type_info (eklass);
7423
7424 if (eklass == mono_defaults.string_class) {
7425 is_string = TRUE;
7426 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7427 }
7428 else {
7429 g_assert_not_reached ();
7430 }
7431
7432 if (is_string)
7433 esize = sizeof (gpointer);
7434 else
7435 esize = mono_class_native_size (eklass, NULL);
7436
7437 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7438 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7439
7440 mono_mb_emit_stloc (mb, src);
7441 mono_mb_emit_ldloc (mb, src);
7442 mono_mb_emit_stloc (mb, 3);
7443
7444 /* Check for null */
7445 mono_mb_emit_ldloc (mb, src);
7446 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7447
7448 /* Allocate native array */
7449 mono_mb_emit_icon (mb, esize);
7450 mono_mb_emit_ldloc (mb, src);
7451 mono_mb_emit_byte (mb, CEE_LDLEN);
7452
7453 if (eklass == mono_defaults.string_class) {
7454 /* Make the array bigger for the terminating null */
7455 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7456 mono_mb_emit_byte (mb, CEE_ADD);
7457 }
7458 mono_mb_emit_byte (mb, CEE_MUL);
7459 mono_mb_emit_icall (mb, mono_marshal_alloc);
7460 mono_mb_emit_stloc (mb, dest);
7461 mono_mb_emit_ldloc (mb, dest);
7462 mono_mb_emit_stloc (mb, 3);
7463
7464 /* Emit marshalling loop */
7465 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7466 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7467 mono_mb_emit_stloc (mb, index_var);
7468 label2 = mono_mb_get_label (mb);
7469 mono_mb_emit_ldloc (mb, index_var);
7470 mono_mb_emit_ldloc (mb, src);
7471 mono_mb_emit_byte (mb, CEE_LDLEN);
7472 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7473
7474 /* Emit marshalling code */
7475 if (is_string) {
7476 g_assert (conv != -1);
7477
7478 /* dest */
7479 mono_mb_emit_ldloc (mb, dest);
7480
7481 /* src */
7482 mono_mb_emit_ldloc (mb, src);
7483 mono_mb_emit_ldloc (mb, index_var);
7484
7485 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7486
7487 mono_mb_emit_icall (mb, conv_to_icall (conv));
7488 mono_mb_emit_byte (mb, CEE_STIND_I);
7489 }
7490 else {
7491 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7492 mono_mb_emit_exception_marshal_directive (mb, msg);
7493 return conv_arg;
7494 }
7495
7496 mono_mb_emit_add_to_local (mb, index_var, 1);
7497 mono_mb_emit_add_to_local (mb, dest, esize);
7498
7499 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7500
7501 mono_mb_patch_branch (mb, label3);
7502 mono_mb_patch_branch (mb, label1);
7503 break;
7504 }
7505 default:
7506 g_assert_not_reached ();
7507 }
7508
7509 return conv_arg;
7510 }
7511
7512 static int
7513 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7514 MonoMarshalSpec *spec,
7515 int conv_arg, MonoType **conv_arg_type,
7516 MarshalAction action)
7517 {
7518 MonoMethodBuilder *mb = m->mb;
7519
7520 switch (action) {
7521 case MARSHAL_ACTION_CONV_IN: {
7522 MonoType *local_type;
7523 int label_false;
7524 guint8 ldc_op = CEE_LDC_I4_1;
7525
7526 if (spec == NULL) {
7527 local_type = &mono_defaults.int32_class->byval_arg;
7528 } else {
7529 switch (spec->native) {
7530 case MONO_NATIVE_I1:
7531 case MONO_NATIVE_U1:
7532 local_type = &mono_defaults.byte_class->byval_arg;
7533 break;
7534 case MONO_NATIVE_VARIANTBOOL:
7535 local_type = &mono_defaults.int16_class->byval_arg;
7536 ldc_op = CEE_LDC_I4_M1;
7537 break;
7538 case MONO_NATIVE_BOOLEAN:
7539 local_type = &mono_defaults.int32_class->byval_arg;
7540 break;
7541 default:
7542 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7543 local_type = &mono_defaults.int32_class->byval_arg;
7544 break;
7545 }
7546 }
7547 if (t->byref)
7548 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7549 else
7550 *conv_arg_type = local_type;
7551 conv_arg = mono_mb_add_local (mb, local_type);
7552
7553 mono_mb_emit_ldarg (mb, argnum);
7554 if (t->byref)
7555 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7556 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7557 mono_mb_emit_byte (mb, ldc_op);
7558 mono_mb_emit_stloc (mb, conv_arg);
7559 mono_mb_patch_branch (mb, label_false);
7560
7561 break;
7562 }
7563
7564 case MARSHAL_ACTION_CONV_OUT:
7565 {
7566 int label_false, label_end;
7567 if (!t->byref)
7568 break;
7569
7570 mono_mb_emit_ldarg (mb, argnum);
7571 mono_mb_emit_ldloc (mb, conv_arg);
7572
7573 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7574 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7575
7576 label_end = mono_mb_emit_branch (mb, CEE_BR);
7577 mono_mb_patch_branch (mb, label_false);
7578 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7579 mono_mb_patch_branch (mb, label_end);
7580
7581 mono_mb_emit_byte (mb, CEE_STIND_I1);
7582 break;
7583 }
7584
7585 case MARSHAL_ACTION_PUSH:
7586 if (t->byref)
7587 mono_mb_emit_ldloc_addr (mb, conv_arg);
7588 else if (conv_arg)
7589 mono_mb_emit_ldloc (mb, conv_arg);
7590 else
7591 mono_mb_emit_ldarg (mb, argnum);
7592 break;
7593
7594 case MARSHAL_ACTION_CONV_RESULT:
7595 /* maybe we need to make sure that it fits within 8 bits */
7596 mono_mb_emit_stloc (mb, 3);
7597 break;
7598
7599 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7600 MonoClass* conv_arg_class = mono_defaults.int32_class;
7601 guint8 ldop = CEE_LDIND_I4;
7602 int label_null, label_false;
7603
7604 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7605
7606 if (spec) {
7607 switch (spec->native) {
7608 case MONO_NATIVE_I1:
7609 case MONO_NATIVE_U1:
7610 conv_arg_class = mono_defaults.byte_class;
7611 ldop = CEE_LDIND_I1;
7612 break;
7613 case MONO_NATIVE_VARIANTBOOL:
7614 conv_arg_class = mono_defaults.int16_class;
7615 ldop = CEE_LDIND_I2;
7616 break;
7617 case MONO_NATIVE_BOOLEAN:
7618 break;
7619 default:
7620 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7621 }
7622 }
7623
7624 if (t->byref)
7625 *conv_arg_type = &conv_arg_class->this_arg;
7626 else
7627 *conv_arg_type = &conv_arg_class->byval_arg;
7628
7629
7630 mono_mb_emit_ldarg (mb, argnum);
7631
7632 /* Check null */
7633 if (t->byref) {
7634 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7635 mono_mb_emit_ldarg (mb, argnum);
7636 mono_mb_emit_byte (mb, ldop);
7637 } else
7638 label_null = 0;
7639
7640 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7641 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7642 mono_mb_emit_stloc (mb, conv_arg);
7643 mono_mb_patch_branch (mb, label_false);
7644
7645 if (t->byref)
7646 mono_mb_patch_branch (mb, label_null);
7647 break;
7648 }
7649
7650 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7651 guint8 stop = CEE_STIND_I4;
7652 guint8 ldc_op = CEE_LDC_I4_1;
7653 int label_null,label_false, label_end;;
7654
7655 if (!t->byref)
7656 break;
7657 if (spec) {
7658 switch (spec->native) {
7659 case MONO_NATIVE_I1:
7660 case MONO_NATIVE_U1:
7661 stop = CEE_STIND_I1;
7662 break;
7663 case MONO_NATIVE_VARIANTBOOL:
7664 stop = CEE_STIND_I2;
7665 ldc_op = CEE_LDC_I4_M1;
7666 break;
7667 default:
7668 break;
7669 }
7670 }
7671
7672 /* Check null */
7673 mono_mb_emit_ldarg (mb, argnum);
7674 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7675
7676 mono_mb_emit_ldarg (mb, argnum);
7677 mono_mb_emit_ldloc (mb, conv_arg);
7678
7679 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7680 mono_mb_emit_byte (mb, ldc_op);
7681 label_end = mono_mb_emit_branch (mb, CEE_BR);
7682
7683 mono_mb_patch_branch (mb, label_false);
7684 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7685 mono_mb_patch_branch (mb, label_end);
7686
7687 mono_mb_emit_byte (mb, stop);
7688 mono_mb_patch_branch (mb, label_null);
7689 break;
7690 }
7691
7692 default:
7693 g_assert_not_reached ();
7694 }
7695
7696 return conv_arg;
7697 }
7698
7699 static int
7700 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7701 MonoMarshalSpec *spec, int conv_arg,
7702 MonoType **conv_arg_type, MarshalAction action)
7703 {
7704 MonoMethodBuilder *mb = m->mb;
7705
7706 switch (action) {
7707 case MARSHAL_ACTION_CONV_IN:
7708 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7709 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7710 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7711 }
7712 break;
7713
7714 case MARSHAL_ACTION_PUSH:
7715 mono_mb_emit_ldarg (mb, argnum);
7716 break;
7717
7718 case MARSHAL_ACTION_CONV_RESULT:
7719 /* no conversions necessary */
7720 mono_mb_emit_stloc (mb, 3);
7721 break;
7722
7723 default:
7724 break;
7725 }
7726
7727 return conv_arg;
7728 }
7729
7730 static int
7731 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7732 MonoMarshalSpec *spec, int conv_arg,
7733 MonoType **conv_arg_type, MarshalAction action)
7734 {
7735 MonoMethodBuilder *mb = m->mb;
7736
7737 switch (action) {
7738 case MARSHAL_ACTION_PUSH:
7739 /* fixme: dont know how to marshal that. We cant simply
7740 * convert it to a one byte UTF8 character, because an
7741 * unicode character may need more that one byte in UTF8 */
7742 mono_mb_emit_ldarg (mb, argnum);
7743 break;
7744
7745 case MARSHAL_ACTION_CONV_RESULT:
7746 /* fixme: we need conversions here */
7747 mono_mb_emit_stloc (mb, 3);
7748 break;
7749
7750 default:
7751 break;
7752 }
7753
7754 return conv_arg;
7755 }
7756
7757 static int
7758 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7759 MonoMarshalSpec *spec, int conv_arg,
7760 MonoType **conv_arg_type, MarshalAction action)
7761 {
7762 MonoMethodBuilder *mb = m->mb;
7763
7764 switch (action) {
7765 case MARSHAL_ACTION_PUSH:
7766 mono_mb_emit_ldarg (mb, argnum);
7767 break;
7768
7769 case MARSHAL_ACTION_CONV_RESULT:
7770 /* no conversions necessary */
7771 mono_mb_emit_stloc (mb, 3);
7772 break;
7773
7774 default:
7775 break;
7776 }
7777
7778 return conv_arg;
7779 }
7780
7781 static int
7782 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7783 MonoMarshalSpec *spec, int conv_arg,
7784 MonoType **conv_arg_type, MarshalAction action)
7785 {
7786 /* Ensure that we have marshalling info for this param */
7787 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7788
7789 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7790 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7791
7792 if (spec && spec->native == MONO_NATIVE_ASANY)
7793 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7794
7795 switch (t->type) {
7796 case MONO_TYPE_VALUETYPE:
7797 if (t->data.klass == mono_defaults.handleref_class)
7798 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7799
7800 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7801 case MONO_TYPE_STRING:
7802 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7803 case MONO_TYPE_CLASS:
7804 case MONO_TYPE_OBJECT:
7805 if (spec && spec->native == MONO_NATIVE_STRUCT)
7806 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7807
7808 #ifndef DISABLE_COM
7809 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7810 spec->native == MONO_NATIVE_IDISPATCH ||
7811 spec->native == MONO_NATIVE_INTERFACE))
7812 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7813 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7814 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7815 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7816 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7817 #endif
7818
7819 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
7820 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7821 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7822
7823 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7824 case MONO_TYPE_ARRAY:
7825 case MONO_TYPE_SZARRAY:
7826 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7827 case MONO_TYPE_BOOLEAN:
7828 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7829 case MONO_TYPE_PTR:
7830 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7831 case MONO_TYPE_CHAR:
7832 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7833 case MONO_TYPE_I1:
7834 case MONO_TYPE_U1:
7835 case MONO_TYPE_I2:
7836 case MONO_TYPE_U2:
7837 case MONO_TYPE_I4:
7838 case MONO_TYPE_U4:
7839 case MONO_TYPE_I:
7840 case MONO_TYPE_U:
7841 case MONO_TYPE_R4:
7842 case MONO_TYPE_R8:
7843 case MONO_TYPE_I8:
7844 case MONO_TYPE_U8:
7845 case MONO_TYPE_FNPTR:
7846 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7847 case MONO_TYPE_GENERICINST:
7848 if (mono_type_generic_inst_is_valuetype (t))
7849 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7850 else
7851 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7852 }
7853
7854 return conv_arg;
7855 }
7856
7857 /**
7858 * mono_marshal_emit_native_wrapper:
7859 * @image: the image to use for looking up custom marshallers
7860 * @sig: The signature of the native function
7861 * @piinfo: Marshalling information
7862 * @mspecs: Marshalling information
7863 * @aot: whenever the created method will be compiled by the AOT compiler
7864 * @method: if non-NULL, the pinvoke method to call
7865 * @check_exceptions: Whenever to check for pending exceptions after the native call
7866 *
7867 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7868 */
7869 void
7870 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
7871 {
7872 EmitMarshalContext m;
7873 MonoMethodSignature *csig;
7874 MonoClass *klass;
7875 int i, argnum, *tmp_locals;
7876 int type;
7877 static MonoMethodSignature *get_last_error_sig = NULL;
7878
7879 m.mb = mb;
7880 m.piinfo = piinfo;
7881
7882 /* we copy the signature, so that we can set pinvoke to 0 */
7883 csig = signature_dup (mb->method->klass->image, sig);
7884 csig->pinvoke = 1;
7885 m.csig = csig;
7886 m.image = image;
7887
7888 /* we allocate local for use with emit_struct_conv() */
7889 /* allocate local 0 (pointer) src_ptr */
7890 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7891 /* allocate local 1 (pointer) dst_ptr */
7892 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7893 /* allocate local 2 (boolean) delete_old */
7894 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7895
7896 /* delete_old = FALSE */
7897 mono_mb_emit_icon (mb, 0);
7898 mono_mb_emit_stloc (mb, 2);
7899
7900 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7901 /* allocate local 3 to store the return value */
7902 mono_mb_add_local (mb, sig->ret);
7903 }
7904
7905 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7906 /* Return type custom marshaling */
7907 /*
7908 * Since we can't determine the return type of the unmanaged function,
7909 * we assume it returns a pointer, and pass that pointer to
7910 * MarshalNativeToManaged.
7911 */
7912 csig->ret = &mono_defaults.int_class->byval_arg;
7913 }
7914
7915 /* we first do all conversions */
7916 tmp_locals = alloca (sizeof (int) * sig->param_count);
7917 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7918
7919 for (i = 0; i < sig->param_count; i ++) {
7920 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7921 }
7922
7923 /* push all arguments */
7924
7925 if (sig->hasthis)
7926 mono_mb_emit_byte (mb, CEE_LDARG_0);
7927
7928 for (i = 0; i < sig->param_count; i++) {
7929 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7930 }
7931
7932 /* call the native method */
7933 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7934 #ifndef DISABLE_COM
7935 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7936 #else
7937 g_assert_not_reached ();
7938 #endif
7939 }
7940 else {
7941 if (aot) {
7942 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7943 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7944 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7945 mono_mb_emit_calli (mb, csig);
7946 } else {
7947 mono_mb_emit_native_call (mb, csig, func);
7948 }
7949 }
7950
7951 /* Set LastError if needed */
7952 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7953 if (!get_last_error_sig) {
7954 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7955 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7956 get_last_error_sig->pinvoke = 1;
7957 }
7958
7959 #ifdef TARGET_WIN32
7960 /*
7961 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7962 * clobber its value.
7963 */
7964 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7965 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7966 #else
7967 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7968 #endif
7969 }
7970
7971 /* convert the result */
7972 if (!sig->ret->byref) {
7973 MonoMarshalSpec *spec = mspecs [0];
7974 type = sig->ret->type;
7975
7976 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7977 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7978 } else {
7979
7980 handle_enum:
7981 switch (type) {
7982 case MONO_TYPE_VOID:
7983 break;
7984 case MONO_TYPE_VALUETYPE:
7985 klass = sig->ret->data.klass;
7986 if (klass->enumtype) {
7987 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7988 goto handle_enum;
7989 }
7990 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7991 break;
7992 case MONO_TYPE_I1:
7993 case MONO_TYPE_U1:
7994 case MONO_TYPE_I2:
7995 case MONO_TYPE_U2:
7996 case MONO_TYPE_I4:
7997 case MONO_TYPE_U4:
7998 case MONO_TYPE_I:
7999 case MONO_TYPE_U:
8000 case MONO_TYPE_R4:
8001 case MONO_TYPE_R8:
8002 case MONO_TYPE_I8:
8003 case MONO_TYPE_U8:
8004 case MONO_TYPE_FNPTR:
8005 case MONO_TYPE_STRING:
8006 case MONO_TYPE_CLASS:
8007 case MONO_TYPE_OBJECT:
8008 case MONO_TYPE_BOOLEAN:
8009 case MONO_TYPE_ARRAY:
8010 case MONO_TYPE_SZARRAY:
8011 case MONO_TYPE_CHAR:
8012 case MONO_TYPE_PTR:
8013 case MONO_TYPE_GENERICINST:
8014 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8015 break;
8016 case MONO_TYPE_TYPEDBYREF:
8017 default:
8018 g_warning ("return type 0x%02x unknown", sig->ret->type);
8019 g_assert_not_reached ();
8020 }
8021 }
8022 } else {
8023 mono_mb_emit_stloc (mb, 3);
8024 }
8025
8026 /*
8027 * Need to call this after converting the result since MONO_VTADDR needs
8028 * to be adjacent to the call instruction.
8029 */
8030 if (check_exceptions)
8031 emit_thread_interrupt_checkpoint (mb);
8032
8033 /* we need to convert byref arguments back and free string arrays */
8034 for (i = 0; i < sig->param_count; i++) {
8035 MonoType *t = sig->params [i];
8036 MonoMarshalSpec *spec = mspecs [i + 1];
8037
8038 argnum = i + sig->hasthis;
8039
8040 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8041 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8042 continue;
8043 }
8044
8045 switch (t->type) {
8046 case MONO_TYPE_STRING:
8047 case MONO_TYPE_VALUETYPE:
8048 case MONO_TYPE_CLASS:
8049 case MONO_TYPE_OBJECT:
8050 case MONO_TYPE_SZARRAY:
8051 case MONO_TYPE_BOOLEAN:
8052 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8053 break;
8054 }
8055 }
8056
8057 if (!MONO_TYPE_IS_VOID(sig->ret))
8058 mono_mb_emit_ldloc (mb, 3);
8059
8060 mono_mb_emit_byte (mb, CEE_RET);
8061 }
8062
8063 G_GNUC_UNUSED static void
8064 code_for (MonoMethod *method) {
8065 MonoMethodHeader *header = mono_method_get_header (method);
8066 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));
8067 }
8068
8069 /**
8070 * mono_marshal_get_native_wrapper:
8071 * @method: The MonoMethod to wrap.
8072 * @check_exceptions: Whenever to check for pending exceptions
8073 *
8074 * generates IL code for the pinvoke wrapper (the generated method
8075 * calls the unmanaged code in piinfo->addr)
8076 */
8077 MonoMethod *
8078 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8079 {
8080 MonoMethodSignature *sig, *csig;
8081 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8082 MonoMethodBuilder *mb;
8083 MonoMarshalSpec **mspecs;
8084 MonoMethod *res;
8085 GHashTable *cache;
8086 gboolean pinvoke = FALSE;
8087 gpointer iter;
8088 int i;
8089 const char *exc_class = "MissingMethodException";
8090 const char *exc_arg = NULL;
8091
8092 g_assert (method != NULL);
8093 g_assert (mono_method_signature (method)->pinvoke);
8094
8095 if (aot)
8096 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8097 else
8098 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8099 if ((res = mono_marshal_find_in_cache (cache, method)))
8100 return res;
8101
8102 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8103 #ifndef DISABLE_COM
8104 return mono_cominterop_get_native_wrapper (method);
8105 #else
8106 g_assert_not_reached ();
8107 #endif
8108 }
8109
8110 sig = mono_method_signature (method);
8111
8112 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8113 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8114 pinvoke = TRUE;
8115
8116 if (!piinfo->addr) {
8117 if (pinvoke)
8118 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8119 exc_arg = "Method contains unsupported native code";
8120 else
8121 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8122 else
8123 piinfo->addr = mono_lookup_internal_call (method);
8124 }
8125
8126 /* hack - redirect certain string constructors to CreateString */
8127 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8128 g_assert (!pinvoke);
8129 g_assert (method->string_ctor);
8130 g_assert (sig->hasthis);
8131
8132 /* CreateString returns a value */
8133 csig = signature_dup (method->klass->image, sig);
8134 csig->ret = &mono_defaults.string_class->byval_arg;
8135 csig->pinvoke = 0;
8136
8137 iter = NULL;
8138 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8139 if (!strcmp ("CreateString", res->name) &&
8140 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8141
8142 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8143 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8144
8145 /* create a wrapper to preserve .ctor in stack trace */
8146 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8147
8148 mono_mb_emit_byte (mb, CEE_LDARG_0);
8149 for (i = 1; i <= csig->param_count; i++)
8150 mono_mb_emit_ldarg (mb, i);
8151 mono_mb_emit_managed_call (mb, res, NULL);
8152 mono_mb_emit_byte (mb, CEE_RET);
8153
8154 /* use native_wrapper_cache because internal calls are looked up there */
8155 res = mono_mb_create_and_cache (cache, method,
8156 mb, csig, csig->param_count + 1);
8157
8158 mono_mb_free (mb);
8159
8160 return res;
8161 }
8162 }
8163
8164 /* exception will be thrown */
8165 piinfo->addr = NULL;
8166 g_warning ("cannot find CreateString for .ctor");
8167 }
8168
8169 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8170
8171 mb->method->save_lmf = 1;
8172
8173 /*
8174 * In AOT mode and embedding scenarios, it is possible that the icall is not
8175 * registered in the runtime doing the AOT compilation.
8176 */
8177 if (!piinfo->addr && !aot) {
8178 mono_mb_emit_exception (mb, exc_class, exc_arg);
8179 csig = signature_dup (method->klass->image, sig);
8180 csig->pinvoke = 0;
8181 res = mono_mb_create_and_cache (cache, method,
8182 mb, csig, csig->param_count + 16);
8183 mono_mb_free (mb);
8184 return res;
8185 }
8186
8187 /* internal calls: we simply push all arguments and call the method (no conversions) */
8188 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8189 if (sig->hasthis)
8190 csig = signature_dup_add_this (sig, method->klass);
8191 else
8192 csig = signature_dup (method->klass->image, sig);
8193
8194 /* hack - string constructors returns a value */
8195 if (method->string_ctor)
8196 csig->ret = &mono_defaults.string_class->byval_arg;
8197
8198 if (sig->hasthis) {
8199 int pos;
8200
8201 /*
8202 * Add a null check since public icalls can be called with 'call' which
8203 * does no such check.
8204 */
8205 mono_mb_emit_byte (mb, CEE_LDARG_0);
8206 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8207 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8208 mono_mb_patch_branch (mb, pos);
8209
8210 mono_mb_emit_byte (mb, CEE_LDARG_0);
8211 }
8212
8213 for (i = 0; i < sig->param_count; i++)
8214 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8215
8216 if (aot) {
8217 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8218 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8219 mono_mb_emit_calli (mb, csig);
8220 } else {
8221 g_assert (piinfo->addr);
8222 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8223 }
8224 if (check_exceptions)
8225 emit_thread_interrupt_checkpoint (mb);
8226 mono_mb_emit_byte (mb, CEE_RET);
8227
8228 csig = signature_dup (method->klass->image, csig);
8229 csig->pinvoke = 0;
8230 res = mono_mb_create_and_cache (cache, method,
8231 mb, csig, csig->param_count + 16);
8232 mono_mb_free (mb);
8233 return res;
8234 }
8235
8236 g_assert (pinvoke);
8237 if (!aot)
8238 g_assert (piinfo->addr);
8239
8240 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8241 mono_method_get_marshal_info (method, mspecs);
8242
8243 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
8244
8245 csig = signature_dup (method->klass->image, sig);
8246 csig->pinvoke = 0;
8247 res = mono_mb_create_and_cache (cache, method,
8248 mb, csig, csig->param_count + 16);
8249 mono_mb_free (mb);
8250
8251 for (i = sig->param_count; i >= 0; i--)
8252 if (mspecs [i])
8253 mono_metadata_free_marshal_spec (mspecs [i]);
8254 g_free (mspecs);
8255
8256 /* code_for (res); */
8257
8258 return res;
8259 }
8260
8261 /**
8262 * mono_marshal_get_native_func_wrapper:
8263 * @image: The image to use for memory allocation and for looking up custom marshallers.
8264 * @sig: The signature of the function
8265 * @func: The native function to wrap
8266 *
8267 * Returns a wrapper method around native functions, similar to the pinvoke
8268 * wrapper.
8269 */
8270 MonoMethod *
8271 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8272 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8273 {
8274 MonoMethodSignature *csig;
8275
8276 MonoMethodBuilder *mb;
8277 MonoMethod *res;
8278 GHashTable *cache;
8279 char *name;
8280
8281 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8282 if ((res = mono_marshal_find_in_cache (cache, func)))
8283 return res;
8284
8285 name = g_strdup_printf ("wrapper_native_%p", func);
8286 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8287 mb->method->save_lmf = 1;
8288
8289 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
8290
8291 csig = signature_dup (image, sig);
8292 csig->pinvoke = 0;
8293 res = mono_mb_create_and_cache (cache, func,
8294 mb, csig, csig->param_count + 16);
8295 mono_mb_free (mb);
8296
8297 mono_marshal_set_wrapper_info (res, NULL);
8298
8299 /* code_for (res); */
8300
8301 return res;
8302 }
8303
8304 /*
8305 * mono_marshal_emit_managed_wrapper:
8306 *
8307 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8308 * the delegate which wraps the managed method to be called. For closed delegates,
8309 * it could have fewer parameters than the method it wraps.
8310 * THIS_LOC is the memory location where the target of the delegate is stored.
8311 */
8312 void
8313 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject** this_loc)
8314 {
8315 MonoMethodSignature *sig, *csig;
8316 int i, *tmp_locals;
8317 gboolean closed = FALSE;
8318
8319 sig = m->sig;
8320 csig = m->csig;
8321
8322 /* allocate local 0 (pointer) src_ptr */
8323 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8324 /* allocate local 1 (pointer) dst_ptr */
8325 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8326 /* allocate local 2 (boolean) delete_old */
8327 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8328
8329 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8330 /* Closed delegate */
8331 g_assert (sig->param_count == invoke_sig->param_count + 1);
8332 closed = TRUE;
8333 /* Use a new signature without the first argument */
8334 sig = mono_metadata_signature_dup (sig);
8335 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8336 sig->param_count --;
8337 }
8338
8339 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8340 /* allocate local 3 to store the return value */
8341 mono_mb_add_local (mb, sig->ret);
8342 }
8343
8344 mono_mb_emit_icon (mb, 0);
8345 mono_mb_emit_stloc (mb, 2);
8346
8347 /* we first do all conversions */
8348 tmp_locals = alloca (sizeof (int) * sig->param_count);
8349 for (i = 0; i < sig->param_count; i ++) {
8350 MonoType *t = sig->params [i];
8351
8352 switch (t->type) {
8353 case MONO_TYPE_OBJECT:
8354 case MONO_TYPE_CLASS:
8355 case MONO_TYPE_VALUETYPE:
8356 case MONO_TYPE_ARRAY:
8357 case MONO_TYPE_SZARRAY:
8358 case MONO_TYPE_STRING:
8359 case MONO_TYPE_BOOLEAN:
8360 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8361
8362 break;
8363 default:
8364 tmp_locals [i] = 0;
8365 break;
8366 }
8367 }
8368
8369 emit_thread_interrupt_checkpoint (mb);
8370
8371 if (sig->hasthis) {
8372 if (this_loc) {
8373 mono_mb_emit_ptr (mb, this_loc);
8374 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8375 } else {
8376 /* fixme: */
8377 g_assert_not_reached ();
8378 }
8379 } else if (closed) {
8380 mono_mb_emit_ptr (mb, this_loc);
8381 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8382 }
8383
8384 for (i = 0; i < sig->param_count; i++) {
8385 MonoType *t = sig->params [i];
8386
8387 if (tmp_locals [i]) {
8388 if (t->byref)
8389 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8390 else
8391 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8392 }
8393 else
8394 mono_mb_emit_ldarg (mb, i);
8395 }
8396
8397 mono_mb_emit_managed_call (mb, method, NULL);
8398
8399 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8400 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8401 } else if (!sig->ret->byref) {
8402 switch (sig->ret->type) {
8403 case MONO_TYPE_VOID:
8404 break;
8405 case MONO_TYPE_BOOLEAN:
8406 case MONO_TYPE_I1:
8407 case MONO_TYPE_U1:
8408 case MONO_TYPE_CHAR:
8409 case MONO_TYPE_I2:
8410 case MONO_TYPE_U2:
8411 case MONO_TYPE_I4:
8412 case MONO_TYPE_U4:
8413 case MONO_TYPE_I:
8414 case MONO_TYPE_U:
8415 case MONO_TYPE_PTR:
8416 case MONO_TYPE_R4:
8417 case MONO_TYPE_R8:
8418 case MONO_TYPE_I8:
8419 case MONO_TYPE_U8:
8420 case MONO_TYPE_OBJECT:
8421 mono_mb_emit_stloc (mb, 3);
8422 break;
8423 case MONO_TYPE_STRING:
8424 csig->ret = &mono_defaults.int_class->byval_arg;
8425 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8426 break;
8427 case MONO_TYPE_VALUETYPE:
8428 case MONO_TYPE_CLASS:
8429 case MONO_TYPE_SZARRAY:
8430 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8431 break;
8432 default:
8433 g_warning ("return type 0x%02x unknown", sig->ret->type);
8434 g_assert_not_reached ();
8435 }
8436 } else {
8437 mono_mb_emit_stloc (mb, 3);
8438 }
8439
8440 /* Convert byref arguments back */
8441 for (i = 0; i < sig->param_count; i ++) {
8442 MonoType *t = sig->params [i];
8443 MonoMarshalSpec *spec = mspecs [i + 1];
8444
8445 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8446 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8447 }
8448 else if (t->byref) {
8449 switch (t->type) {
8450 case MONO_TYPE_CLASS:
8451 case MONO_TYPE_VALUETYPE:
8452 case MONO_TYPE_OBJECT:
8453 case MONO_TYPE_STRING:
8454 case MONO_TYPE_BOOLEAN:
8455 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8456 break;
8457 }
8458 }
8459 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8460 /* The [Out] information is encoded in the delegate signature */
8461 switch (t->type) {
8462 case MONO_TYPE_SZARRAY:
8463 case MONO_TYPE_CLASS:
8464 case MONO_TYPE_VALUETYPE:
8465 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8466 break;
8467 default:
8468 g_assert_not_reached ();
8469 }
8470 }
8471 }
8472
8473 if (m->retobj_var) {
8474 mono_mb_emit_ldloc (mb, m->retobj_var);
8475 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8476 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8477 }
8478 else {
8479 if (!MONO_TYPE_IS_VOID(sig->ret))
8480 mono_mb_emit_ldloc (mb, 3);
8481 mono_mb_emit_byte (mb, CEE_RET);
8482 }
8483
8484 if (closed)
8485 g_free (sig);
8486 }
8487
8488
8489 static void
8490 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8491 {
8492 MonoMethodSignature *sig;
8493 int i;
8494
8495 #ifdef TARGET_WIN32
8496 /*
8497 * Under windows, delegates passed to native code must use the STDCALL
8498 * calling convention.
8499 */
8500 csig->call_convention = MONO_CALL_STDCALL;
8501 #endif
8502
8503 sig = mono_method_signature (method);
8504
8505 /* Change default calling convention if needed */
8506 /* Why is this a modopt ? */
8507 if (sig->ret && sig->ret->num_mods) {
8508 for (i = 0; i < sig->ret->num_mods; ++i) {
8509 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8510 g_assert (cmod_class);
8511 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8512 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8513 csig->call_convention = MONO_CALL_C;
8514 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8515 csig->call_convention = MONO_CALL_STDCALL;
8516 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8517 csig->call_convention = MONO_CALL_FASTCALL;
8518 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8519 csig->call_convention = MONO_CALL_THISCALL;
8520 }
8521 }
8522 }
8523 }
8524
8525 /*
8526 * generates IL code to call managed methods from unmanaged code
8527 */
8528 MonoMethod *
8529 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject **this_loc)
8530 {
8531 static MonoClass *UnmanagedFunctionPointerAttribute;
8532 MonoMethodSignature *sig, *csig, *invoke_sig;
8533 MonoMethodBuilder *mb;
8534 MonoMethod *res, *invoke;
8535 MonoMarshalSpec **mspecs;
8536 MonoMethodPInvoke piinfo;
8537 GHashTable *cache;
8538 int i;
8539 EmitMarshalContext m;
8540
8541 g_assert (method != NULL);
8542 g_assert (!mono_method_signature (method)->pinvoke);
8543
8544 /*
8545 * FIXME: Should cache the method+delegate type pair, since the same method
8546 * could be called with different delegates, thus different marshalling
8547 * options.
8548 */
8549 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8550 if (!this_loc && (res = mono_marshal_find_in_cache (cache, method)))
8551 return res;
8552
8553 invoke = mono_get_delegate_invoke (delegate_klass);
8554 invoke_sig = mono_method_signature (invoke);
8555
8556 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8557 mono_method_get_marshal_info (invoke, mspecs);
8558
8559 sig = mono_method_signature (method);
8560
8561 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8562
8563 /* we copy the signature, so that we can modify it */
8564 if (this_loc)
8565 /* Need to free this later */
8566 csig = mono_metadata_signature_dup (invoke_sig);
8567 else
8568 csig = signature_dup (method->klass->image, invoke_sig);
8569 csig->hasthis = 0;
8570 csig->pinvoke = 1;
8571
8572 m.mb = mb;
8573 m.sig = sig;
8574 m.piinfo = NULL;
8575 m.retobj_var = 0;
8576 m.csig = csig;
8577 m.image = method->klass->image;
8578
8579 mono_marshal_set_callconv_from_modopt (invoke, csig);
8580
8581 /* Handle the UnmanagedFunctionPointerAttribute */
8582 if (!UnmanagedFunctionPointerAttribute)
8583 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8584
8585 /* The attribute is only available in Net 2.0 */
8586 if (UnmanagedFunctionPointerAttribute) {
8587 MonoCustomAttrInfo *cinfo;
8588 MonoCustomAttrEntry *attr;
8589
8590 /*
8591 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8592 * contents of the attribute without constructing it, as that might not be
8593 * possible when running in cross-compiling mode.
8594 */
8595 cinfo = mono_custom_attrs_from_class (delegate_klass);
8596 attr = NULL;
8597 if (cinfo) {
8598 for (i = 0; i < cinfo->num_attrs; ++i) {
8599 if (mono_class_has_parent (cinfo->attrs [i].ctor->klass, UnmanagedFunctionPointerAttribute)) {
8600 attr = &cinfo->attrs [i];
8601 break;
8602 }
8603 }
8604 }
8605 if (attr) {
8606 MonoArray *typed_args, *named_args;
8607 CattrNamedArg *arginfo;
8608 MonoObject *o;
8609 gint32 call_conv;
8610 gint32 charset = 0;
8611 MonoBoolean set_last_error = 0;
8612 MonoBoolean best_fit_mapping = 0;
8613 MonoBoolean throw_on_unmappable = 0;
8614
8615 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo);
8616
8617 g_assert (mono_array_length (typed_args) == 1);
8618
8619 /* typed args */
8620 o = mono_array_get (typed_args, MonoObject*, 0);
8621 call_conv = *(gint32*)mono_object_unbox (o);
8622
8623 /* named args */
8624 for (i = 0; i < mono_array_length (named_args); ++i) {
8625 CattrNamedArg *narg = &arginfo [i];
8626
8627 o = mono_array_get (named_args, MonoObject*, i);
8628
8629 g_assert (narg->field);
8630 if (!strcmp (narg->field->name, "CharSet")) {
8631 charset = *(gint32*)mono_object_unbox (o);
8632 } else if (!strcmp (narg->field->name, "SetLastError")) {
8633 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8634 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8635 best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8636 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8637 throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8638 } else {
8639 g_assert_not_reached ();
8640 }
8641 }
8642
8643 g_free (arginfo);
8644
8645 memset (&piinfo, 0, sizeof (piinfo));
8646 m.piinfo = &piinfo;
8647 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8648
8649 csig->call_convention = call_conv - 1;
8650 }
8651
8652 if (cinfo && !cinfo->cached)
8653 mono_custom_attrs_free (cinfo);
8654 }
8655
8656 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this_loc);
8657
8658 if (!this_loc)
8659 res = mono_mb_create_and_cache (cache, method,
8660 mb, csig, sig->param_count + 16);
8661 else {
8662 mb->dynamic = 1;
8663 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8664 }
8665 mono_mb_free (mb);
8666
8667 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8668 if (mspecs [i])
8669 mono_metadata_free_marshal_spec (mspecs [i]);
8670 g_free (mspecs);
8671
8672 /* code_for (res); */
8673
8674 return res;
8675 }
8676
8677 gpointer
8678 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8679 {
8680 MonoMethod *method;
8681 MonoMethodSignature *sig;
8682 MonoMethodBuilder *mb;
8683 int i, param_count;
8684
8685 g_assert (token);
8686
8687 method = mono_get_method (image, token, NULL);
8688 g_assert (method);
8689
8690 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8691 MonoMethodSignature *csig;
8692 MonoMarshalSpec **mspecs;
8693 EmitMarshalContext m;
8694
8695 sig = mono_method_signature (method);
8696 g_assert (!sig->hasthis);
8697
8698 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8699 mono_method_get_marshal_info (method, mspecs);
8700
8701 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8702 csig = signature_dup (image, sig);
8703 csig->hasthis = 0;
8704 csig->pinvoke = 1;
8705
8706 m.mb = mb;
8707 m.sig = sig;
8708 m.piinfo = NULL;
8709 m.retobj_var = 0;
8710 m.csig = csig;
8711 m.image = image;
8712
8713 mono_marshal_set_callconv_from_modopt (method, csig);
8714
8715 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8716
8717 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, NULL);
8718
8719 mb->dynamic = 1;
8720 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
8721 mono_mb_free (mb);
8722
8723 for (i = sig->param_count; i >= 0; i--)
8724 if (mspecs [i])
8725 mono_metadata_free_marshal_spec (mspecs [i]);
8726 g_free (mspecs);
8727
8728 return mono_compile_method (method);
8729 }
8730
8731 sig = mono_method_signature (method);
8732 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8733
8734 param_count = sig->param_count + sig->hasthis;
8735 for (i = 0; i < param_count; i++)
8736 mono_mb_emit_ldarg (mb, i);
8737
8738 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8739 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8740 else
8741 mono_mb_emit_op (mb, CEE_CALL, method);
8742 mono_mb_emit_byte (mb, CEE_RET);
8743
8744 mb->dynamic = 1;
8745 method = mono_mb_create_method (mb, sig, param_count);
8746 mono_mb_free (mb);
8747
8748 return mono_compile_method (method);
8749 }
8750
8751 static MonoReflectionType *
8752 type_from_handle (MonoType *handle)
8753 {
8754 MonoDomain *domain = mono_domain_get ();
8755 MonoClass *klass = mono_class_from_mono_type (handle);
8756
8757 MONO_ARCH_SAVE_REGS;
8758
8759 mono_class_init (klass);
8760 return mono_type_get_object (domain, handle);
8761 }
8762
8763 /*
8764 * mono_marshal_get_isinst:
8765 * @klass: the type of the field
8766 *
8767 * This method generates a function which can be used to check if an object is
8768 * an instance of the given type, icluding the case where the object is a proxy.
8769 * The generated function has the following signature:
8770 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8771 */
8772 MonoMethod *
8773 mono_marshal_get_isinst (MonoClass *klass)
8774 {
8775 static MonoMethodSignature *isint_sig = NULL;
8776 GHashTable *cache;
8777 MonoMethod *res;
8778 int pos_was_ok, pos_failed, pos_end, pos_end2;
8779 char *name;
8780 MonoMethodBuilder *mb;
8781
8782 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8783 if ((res = mono_marshal_find_in_cache (cache, klass)))
8784 return res;
8785
8786 if (!isint_sig) {
8787 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8788 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8789 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8790 isint_sig->pinvoke = 0;
8791 }
8792
8793 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8794 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8795 g_free (name);
8796
8797 mb->method->save_lmf = 1;
8798
8799 /* check if the object is a proxy that needs special cast */
8800 mono_mb_emit_ldarg (mb, 0);
8801 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8802 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8803
8804 /* The result of MONO_ISINST can be:
8805 0) the type check succeeded
8806 1) the type check did not succeed
8807 2) a CanCastTo call is needed */
8808
8809 mono_mb_emit_byte (mb, CEE_DUP);
8810 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8811
8812 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8813 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8814
8815 /* get the real proxy from the transparent proxy*/
8816
8817 mono_mb_emit_ldarg (mb, 0);
8818 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8819 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8820
8821 /* fail */
8822
8823 mono_mb_patch_branch (mb, pos_failed);
8824 mono_mb_emit_byte (mb, CEE_LDNULL);
8825 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8826
8827 /* success */
8828
8829 mono_mb_patch_branch (mb, pos_was_ok);
8830 mono_mb_emit_byte (mb, CEE_POP);
8831 mono_mb_emit_ldarg (mb, 0);
8832
8833 /* the end */
8834
8835 mono_mb_patch_branch (mb, pos_end);
8836 mono_mb_patch_branch (mb, pos_end2);
8837 mono_mb_emit_byte (mb, CEE_RET);
8838
8839 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8840 mono_mb_free (mb);
8841
8842 return res;
8843 }
8844
8845 /*
8846 * mono_marshal_get_castclass:
8847 * @klass: the type of the field
8848 *
8849 * This method generates a function which can be used to cast an object to
8850 * an instance of the given type, icluding the case where the object is a proxy.
8851 * The generated function has the following signature:
8852 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8853 */
8854 MonoMethod *
8855 mono_marshal_get_castclass (MonoClass *klass)
8856 {
8857 static MonoMethodSignature *castclass_sig = NULL;
8858 GHashTable *cache;
8859 MonoMethod *res;
8860 int pos_was_ok, pos_was_ok2;
8861 char *name;
8862 MonoMethodBuilder *mb;
8863
8864 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8865 if ((res = mono_marshal_find_in_cache (cache, klass)))
8866 return res;
8867
8868 if (!castclass_sig) {
8869 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8870 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8871 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8872 castclass_sig->pinvoke = 0;
8873 }
8874
8875 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8876 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8877 g_free (name);
8878
8879 mb->method->save_lmf = 1;
8880
8881 /* check if the object is a proxy that needs special cast */
8882 mono_mb_emit_ldarg (mb, 0);
8883 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8884 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8885
8886 /* The result of MONO_ISINST can be:
8887 0) the cast is valid
8888 1) cast of unknown proxy type
8889 or an exception if the cast is is invalid
8890 */
8891
8892 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8893
8894 /* get the real proxy from the transparent proxy*/
8895
8896 mono_mb_emit_ldarg (mb, 0);
8897 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8898 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8899
8900 /* fail */
8901 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8902
8903 /* success */
8904 mono_mb_patch_branch (mb, pos_was_ok);
8905 mono_mb_patch_branch (mb, pos_was_ok2);
8906 mono_mb_emit_ldarg (mb, 0);
8907
8908 /* the end */
8909 mono_mb_emit_byte (mb, CEE_RET);
8910
8911 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
8912 mono_mb_free (mb);
8913
8914 return res;
8915 }
8916
8917 MonoMethod *
8918 mono_marshal_get_proxy_cancast (MonoClass *klass)
8919 {
8920 static MonoMethodSignature *isint_sig = NULL;
8921 GHashTable *cache;
8922 MonoMethod *res;
8923 int pos_failed, pos_end;
8924 char *name;
8925 MonoMethod *can_cast_to;
8926 MonoMethodDesc *desc;
8927 MonoMethodBuilder *mb;
8928
8929 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
8930 if ((res = mono_marshal_find_in_cache (cache, klass)))
8931 return res;
8932
8933 if (!isint_sig) {
8934 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8935 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8936 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8937 isint_sig->pinvoke = 0;
8938 }
8939
8940 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
8941 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
8942 g_free (name);
8943
8944 mb->method->save_lmf = 1;
8945
8946 /* get the real proxy from the transparent proxy*/
8947 mono_mb_emit_ldarg (mb, 0);
8948 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
8949 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8950
8951 /* get the reflection type from the type handle */
8952 mono_mb_emit_ptr (mb, &klass->byval_arg);
8953 mono_mb_emit_icall (mb, type_from_handle);
8954
8955 mono_mb_emit_ldarg (mb, 0);
8956
8957 /* make the call to CanCastTo (type, ob) */
8958 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
8959 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
8960 g_assert (can_cast_to);
8961 mono_method_desc_free (desc);
8962 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
8963
8964 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
8965
8966 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
8967 mono_mb_emit_ptr (mb, &klass->byval_arg);
8968 mono_mb_emit_icall (mb, type_from_handle);
8969 mono_mb_emit_ldarg (mb, 0);
8970
8971 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
8972 emit_thread_interrupt_checkpoint (mb);
8973
8974 mono_mb_emit_ldarg (mb, 0);
8975 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8976
8977 /* fail */
8978
8979 mono_mb_patch_branch (mb, pos_failed);
8980 mono_mb_emit_byte (mb, CEE_LDNULL);
8981
8982 /* the end */
8983
8984 mono_mb_patch_branch (mb, pos_end);
8985 mono_mb_emit_byte (mb, CEE_RET);
8986
8987 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8988 mono_mb_free (mb);
8989
8990 return res;
8991 }
8992
8993 void
8994 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
8995 {
8996 MonoClass *klass;
8997 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
8998 klass = mono_class_from_mono_type (rtype->type);
8999 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9000 }
9001
9002 /**
9003 * mono_marshal_get_struct_to_ptr:
9004 * @klass:
9005 *
9006 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9007 */
9008 MonoMethod *
9009 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9010 {
9011 MonoMethodBuilder *mb;
9012 static MonoMethod *stoptr = NULL;
9013 MonoMethod *res;
9014
9015 g_assert (klass != NULL);
9016
9017 mono_marshal_load_type_info (klass);
9018
9019 if (klass->marshal_info->str_to_ptr)
9020 return klass->marshal_info->str_to_ptr;
9021
9022 if (!stoptr)
9023 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9024 g_assert (stoptr);
9025
9026 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9027
9028 if (klass->blittable) {
9029 mono_mb_emit_byte (mb, CEE_LDARG_1);
9030 mono_mb_emit_byte (mb, CEE_LDARG_0);
9031 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9032 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9033 mono_mb_emit_byte (mb, CEE_PREFIX1);
9034 mono_mb_emit_byte (mb, CEE_CPBLK);
9035 } else {
9036
9037 /* allocate local 0 (pointer) src_ptr */
9038 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9039 /* allocate local 1 (pointer) dst_ptr */
9040 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9041 /* allocate local 2 (boolean) delete_old */
9042 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9043 mono_mb_emit_byte (mb, CEE_LDARG_2);
9044 mono_mb_emit_stloc (mb, 2);
9045
9046 /* initialize src_ptr to point to the start of object data */
9047 mono_mb_emit_byte (mb, CEE_LDARG_0);
9048 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9049 mono_mb_emit_stloc (mb, 0);
9050
9051 /* initialize dst_ptr */
9052 mono_mb_emit_byte (mb, CEE_LDARG_1);
9053 mono_mb_emit_stloc (mb, 1);
9054
9055 emit_struct_conv (mb, klass, FALSE);
9056 }
9057
9058 mono_mb_emit_byte (mb, CEE_RET);
9059
9060 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
9061 mono_mb_free (mb);
9062
9063 klass->marshal_info->str_to_ptr = res;
9064 return res;
9065 }
9066
9067 /**
9068 * mono_marshal_get_ptr_to_struct:
9069 * @klass:
9070 *
9071 * generates IL code for PtrToStructure (IntPtr src, object structure)
9072 */
9073 MonoMethod *
9074 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9075 {
9076 MonoMethodBuilder *mb;
9077 static MonoMethodSignature *ptostr = NULL;
9078 MonoMethod *res;
9079
9080 g_assert (klass != NULL);
9081
9082 mono_marshal_load_type_info (klass);
9083
9084 if (klass->marshal_info->ptr_to_str)
9085 return klass->marshal_info->ptr_to_str;
9086
9087 if (!ptostr) {
9088 MonoMethodSignature *sig;
9089
9090 /* Create the signature corresponding to
9091 static void PtrToStructure (IntPtr ptr, object structure);
9092 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9093 sig = mono_create_icall_signature ("void ptr object");
9094 sig = signature_dup (mono_defaults.corlib, sig);
9095 sig->pinvoke = 0;
9096 mono_memory_barrier ();
9097 ptostr = sig;
9098 }
9099
9100 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9101
9102 if (klass->blittable) {
9103 mono_mb_emit_byte (mb, CEE_LDARG_1);
9104 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9105 mono_mb_emit_byte (mb, CEE_LDARG_0);
9106 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9107 mono_mb_emit_byte (mb, CEE_PREFIX1);
9108 mono_mb_emit_byte (mb, CEE_CPBLK);
9109 } else {
9110
9111 /* allocate local 0 (pointer) src_ptr */
9112 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9113 /* allocate local 1 (pointer) dst_ptr */
9114 mono_mb_add_local (mb, &klass->this_arg);
9115
9116 /* initialize src_ptr to point to the start of object data */
9117 mono_mb_emit_byte (mb, CEE_LDARG_0);
9118 mono_mb_emit_stloc (mb, 0);
9119
9120 /* initialize dst_ptr */
9121 mono_mb_emit_byte (mb, CEE_LDARG_1);
9122 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9123 mono_mb_emit_stloc (mb, 1);
9124
9125 emit_struct_conv (mb, klass, TRUE);
9126 }
9127
9128 mono_mb_emit_byte (mb, CEE_RET);
9129
9130 res = mono_mb_create_method (mb, ptostr, 0);
9131 mono_mb_free (mb);
9132
9133 klass->marshal_info->ptr_to_str = res;
9134 return res;
9135 }
9136
9137 /*
9138 * generates IL code for the synchronized wrapper: the generated method
9139 * calls METHOD while locking 'this' or the parent type.
9140 */
9141 MonoMethod *
9142 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9143 {
9144 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9145 MonoMethodSignature *sig;
9146 MonoExceptionClause *clause;
9147 MonoMethodBuilder *mb;
9148 MonoMethod *res;
9149 GHashTable *cache;
9150 int i, pos, this_local, ret_local = 0;
9151
9152 g_assert (method);
9153
9154 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9155 return method;
9156
9157 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
9158 if ((res = mono_marshal_find_in_cache (cache, method)))
9159 return res;
9160
9161 sig = signature_dup (method->klass->image, mono_method_signature (method));
9162 sig->pinvoke = 0;
9163
9164 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9165
9166 /* result */
9167 if (!MONO_TYPE_IS_VOID (sig->ret))
9168 ret_local = mono_mb_add_local (mb, sig->ret);
9169
9170 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9171 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9172 /* This will throw the type load exception when the wrapper is compiled */
9173 mono_mb_emit_byte (mb, CEE_LDNULL);
9174 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9175 mono_mb_emit_byte (mb, CEE_POP);
9176
9177 if (!MONO_TYPE_IS_VOID (sig->ret))
9178 mono_mb_emit_ldloc (mb, ret_local);
9179 mono_mb_emit_byte (mb, CEE_RET);
9180
9181 res = mono_mb_create_and_cache (cache, method,
9182 mb, sig, sig->param_count + 16);
9183 mono_mb_free (mb);
9184
9185 return res;
9186 }
9187
9188 /* this */
9189 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9190
9191 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9192 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9193
9194 mono_loader_lock ();
9195
9196 if (!enter_method) {
9197 MonoMethodDesc *desc;
9198
9199 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9200 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9201 g_assert (enter_method);
9202 mono_method_desc_free (desc);
9203
9204 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9205 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9206 g_assert (exit_method);
9207 mono_method_desc_free (desc);
9208
9209 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9210 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
9211 g_assert (gettypefromhandle_method);
9212 mono_method_desc_free (desc);
9213 }
9214
9215 mono_loader_unlock ();
9216
9217 /* Push this or the type object */
9218 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9219 /* We have special handling for this in the JIT */
9220 int index = mono_mb_add_data (mb, method->klass);
9221 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9222 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9223 mono_mb_emit_i4 (mb, index);
9224
9225 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9226 }
9227 else
9228 mono_mb_emit_ldarg (mb, 0);
9229 mono_mb_emit_stloc (mb, this_local);
9230
9231 /* Call Monitor::Enter() */
9232 mono_mb_emit_ldloc (mb, this_local);
9233 mono_mb_emit_managed_call (mb, enter_method, NULL);
9234
9235 clause->try_offset = mono_mb_get_label (mb);
9236
9237 /* Call the method */
9238 if (sig->hasthis)
9239 mono_mb_emit_ldarg (mb, 0);
9240 for (i = 0; i < sig->param_count; i++)
9241 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9242
9243 mono_mb_emit_managed_call (mb, method, NULL);
9244
9245 if (!MONO_TYPE_IS_VOID (sig->ret))
9246 mono_mb_emit_stloc (mb, ret_local);
9247
9248 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9249
9250 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9251 clause->handler_offset = mono_mb_get_label (mb);
9252
9253 /* Call Monitor::Exit() */
9254 mono_mb_emit_ldloc (mb, this_local);
9255 mono_mb_emit_managed_call (mb, exit_method, NULL);
9256 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9257
9258 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9259
9260 mono_mb_patch_branch (mb, pos);
9261 if (!MONO_TYPE_IS_VOID (sig->ret))
9262 mono_mb_emit_ldloc (mb, ret_local);
9263 mono_mb_emit_byte (mb, CEE_RET);
9264
9265 mono_mb_set_clauses (mb, 1, clause);
9266
9267 res = mono_mb_create_and_cache (cache, method,
9268 mb, sig, sig->param_count + 16);
9269 mono_mb_free (mb);
9270
9271 return res;
9272 }
9273
9274
9275 /*
9276 * the returned method calls 'method' unboxing the this argument
9277 */
9278 MonoMethod *
9279 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9280 {
9281 MonoMethodSignature *sig = mono_method_signature (method);
9282 int i;
9283 MonoMethodBuilder *mb;
9284 MonoMethod *res;
9285 GHashTable *cache;
9286
9287 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9288 if ((res = mono_marshal_find_in_cache (cache, method)))
9289 return res;
9290
9291 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9292
9293 g_assert (sig->hasthis);
9294
9295 mono_mb_emit_ldarg (mb, 0);
9296 mono_mb_emit_icon (mb, sizeof (MonoObject));
9297 mono_mb_emit_byte (mb, CEE_ADD);
9298 for (i = 0; i < sig->param_count; ++i)
9299 mono_mb_emit_ldarg (mb, i + 1);
9300 mono_mb_emit_managed_call (mb, method, NULL);
9301 mono_mb_emit_byte (mb, CEE_RET);
9302
9303 res = mono_mb_create_and_cache (cache, method,
9304 mb, sig, sig->param_count + 16);
9305 mono_mb_free (mb);
9306
9307 /* code_for (res); */
9308
9309 return res;
9310 }
9311
9312 MonoMethod*
9313 mono_marshal_get_stelemref ()
9314 {
9315 static MonoMethod* ret = NULL;
9316 MonoMethodSignature *sig;
9317 MonoMethodBuilder *mb;
9318
9319 guint32 b1, b2, b3, b4;
9320 guint32 copy_pos;
9321 int aklass, vklass;
9322 int array_slot_addr;
9323
9324 if (ret)
9325 return ret;
9326
9327 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9328
9329
9330 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9331
9332 /* void stelemref (void* array, int idx, void* value) */
9333 sig->ret = &mono_defaults.void_class->byval_arg;
9334 sig->params [0] = &mono_defaults.object_class->byval_arg;
9335 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9336 sig->params [2] = &mono_defaults.object_class->byval_arg;
9337
9338 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9339 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9340 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9341
9342 /*
9343 the method:
9344 <ldelema (bound check)>
9345 if (!value)
9346 goto store;
9347
9348 aklass = array->vtable->klass->element_class;
9349 vklass = value->vtable->klass;
9350
9351 if (vklass->idepth < aklass->idepth)
9352 goto long;
9353
9354 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9355 goto long;
9356
9357 store:
9358 *array_slot_addr = value;
9359 return;
9360
9361 long:
9362 if (mono_object_isinst (value, aklass))
9363 goto store;
9364
9365 throw new ArrayTypeMismatchException ();
9366 */
9367
9368 /* ldelema (implicit bound check) */
9369 mono_mb_emit_ldarg (mb, 0);
9370 mono_mb_emit_ldarg (mb, 1);
9371 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9372 mono_mb_emit_stloc (mb, array_slot_addr);
9373
9374 /* if (!value) goto do_store */
9375 mono_mb_emit_ldarg (mb, 2);
9376 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9377
9378 /* aklass = array->vtable->klass->element_class */
9379 mono_mb_emit_ldarg (mb, 0);
9380 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9381 mono_mb_emit_byte (mb, CEE_LDIND_I);
9382 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9383 mono_mb_emit_byte (mb, CEE_LDIND_I);
9384 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9385 mono_mb_emit_byte (mb, CEE_LDIND_I);
9386 mono_mb_emit_stloc (mb, aklass);
9387
9388 /* vklass = value->vtable->klass */
9389 mono_mb_emit_ldarg (mb, 2);
9390 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9391 mono_mb_emit_byte (mb, CEE_LDIND_I);
9392 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9393 mono_mb_emit_byte (mb, CEE_LDIND_I);
9394 mono_mb_emit_stloc (mb, vklass);
9395
9396 /* if (vklass->idepth < aklass->idepth) goto failue */
9397 mono_mb_emit_ldloc (mb, vklass);
9398 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9399 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9400
9401 mono_mb_emit_ldloc (mb, aklass);
9402 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9403 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9404
9405 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9406
9407 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9408 mono_mb_emit_ldloc (mb, vklass);
9409 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
9410 mono_mb_emit_byte (mb, CEE_LDIND_I);
9411
9412 mono_mb_emit_ldloc (mb, aklass);
9413 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9414 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9415 mono_mb_emit_icon (mb, 1);
9416 mono_mb_emit_byte (mb, CEE_SUB);
9417 mono_mb_emit_icon (mb, sizeof (void*));
9418 mono_mb_emit_byte (mb, CEE_MUL);
9419 mono_mb_emit_byte (mb, CEE_ADD);
9420 mono_mb_emit_byte (mb, CEE_LDIND_I);
9421
9422 mono_mb_emit_ldloc (mb, aklass);
9423
9424 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9425
9426 copy_pos = mono_mb_get_label (mb);
9427 /* do_store */
9428 mono_mb_patch_branch (mb, b1);
9429 mono_mb_emit_ldloc (mb, array_slot_addr);
9430 mono_mb_emit_ldarg (mb, 2);
9431 mono_mb_emit_byte (mb, CEE_STIND_REF);
9432
9433 mono_mb_emit_byte (mb, CEE_RET);
9434
9435 /* the hard way */
9436 mono_mb_patch_branch (mb, b2);
9437 mono_mb_patch_branch (mb, b3);
9438
9439 mono_mb_emit_ldarg (mb, 2);
9440 mono_mb_emit_ldloc (mb, aklass);
9441 mono_mb_emit_icall (mb, mono_object_isinst);
9442
9443 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9444 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9445 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9446
9447 mono_mb_emit_byte (mb, CEE_RET);
9448 ret = mono_mb_create_method (mb, sig, 4);
9449 mono_mb_free (mb);
9450 return ret;
9451 }
9452
9453 typedef struct {
9454 int rank;
9455 int elem_size;
9456 MonoMethod *method;
9457 } ArrayElemAddr;
9458
9459 /* LOCKING: vars accessed under the marshal lock */
9460 static ArrayElemAddr *elem_addr_cache = NULL;
9461 static int elem_addr_cache_size = 0;
9462 static int elem_addr_cache_next = 0;
9463
9464 /**
9465 * mono_marshal_get_array_address:
9466 * @rank: rank of the array type
9467 * @elem_size: size in bytes of an element of an array.
9468 *
9469 * Returns a MonoMethd that implements the code to get the address
9470 * of an element in a multi-dimenasional array of @rank dimensions.
9471 * The returned method takes an array as the first argument and then
9472 * @rank indexes for the @rank dimensions.
9473 */
9474 MonoMethod*
9475 mono_marshal_get_array_address (int rank, int elem_size)
9476 {
9477 MonoMethod *ret;
9478 MonoMethodBuilder *mb;
9479 MonoMethodSignature *sig;
9480 int i, bounds, ind, realidx;
9481 int branch_pos, *branch_positions;
9482 int cached;
9483
9484 ret = NULL;
9485 mono_marshal_lock ();
9486 for (i = 0; i < elem_addr_cache_next; ++i) {
9487 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9488 ret = elem_addr_cache [i].method;
9489 break;
9490 }
9491 }
9492 mono_marshal_unlock ();
9493 if (ret)
9494 return ret;
9495
9496 branch_positions = g_new0 (int, rank);
9497
9498 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9499
9500 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9501 sig->ret = &mono_defaults.int_class->byval_arg;
9502 sig->params [0] = &mono_defaults.object_class->byval_arg;
9503 for (i = 0; i < rank; ++i) {
9504 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9505 }
9506
9507 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9508
9509 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9510 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9511 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9512
9513 /* bounds = array->bounds; */
9514 mono_mb_emit_ldarg (mb, 0);
9515 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9516 mono_mb_emit_byte (mb, CEE_LDIND_I);
9517 mono_mb_emit_stloc (mb, bounds);
9518
9519 /* ind is the overall element index, realidx is the partial index in a single dimension */
9520 /* ind = idx0 - bounds [0].lower_bound */
9521 mono_mb_emit_ldarg (mb, 1);
9522 mono_mb_emit_ldloc (mb, bounds);
9523 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9524 mono_mb_emit_byte (mb, CEE_ADD);
9525 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9526 mono_mb_emit_byte (mb, CEE_SUB);
9527 mono_mb_emit_stloc (mb, ind);
9528 /* if (ind >= bounds [0].length) goto exeception; */
9529 mono_mb_emit_ldloc (mb, ind);
9530 mono_mb_emit_ldloc (mb, bounds);
9531 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9532 mono_mb_emit_byte (mb, CEE_ADD);
9533 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9534 /* note that we use unsigned comparison */
9535 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9536
9537 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9538 * We could also decide to ignore the passed elem_size and get it
9539 * from the array object, to reduce the number of methods we generate:
9540 * the additional cost is 3 memory loads and a non-immediate mul.
9541 */
9542 for (i = 1; i < rank; ++i) {
9543 /* realidx = idxi - bounds [i].lower_bound */
9544 mono_mb_emit_ldarg (mb, 1 + i);
9545 mono_mb_emit_ldloc (mb, bounds);
9546 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9547 mono_mb_emit_byte (mb, CEE_ADD);
9548 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9549 mono_mb_emit_byte (mb, CEE_SUB);
9550 mono_mb_emit_stloc (mb, realidx);
9551 /* if (realidx >= bounds [i].length) goto exeception; */
9552 mono_mb_emit_ldloc (mb, realidx);
9553 mono_mb_emit_ldloc (mb, bounds);
9554 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9555 mono_mb_emit_byte (mb, CEE_ADD);
9556 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9557 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9558 /* ind = ind * bounds [i].length + realidx */
9559 mono_mb_emit_ldloc (mb, ind);
9560 mono_mb_emit_ldloc (mb, bounds);
9561 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9562 mono_mb_emit_byte (mb, CEE_ADD);
9563 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9564 mono_mb_emit_byte (mb, CEE_MUL);
9565 mono_mb_emit_ldloc (mb, realidx);
9566 mono_mb_emit_byte (mb, CEE_ADD);
9567 mono_mb_emit_stloc (mb, ind);
9568 }
9569
9570 /* return array->vector + ind * element_size */
9571 mono_mb_emit_ldarg (mb, 0);
9572 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9573 mono_mb_emit_ldloc (mb, ind);
9574 mono_mb_emit_icon (mb, elem_size);
9575 mono_mb_emit_byte (mb, CEE_MUL);
9576 mono_mb_emit_byte (mb, CEE_ADD);
9577 mono_mb_emit_byte (mb, CEE_RET);
9578
9579 /* patch the branches to get here and throw */
9580 for (i = 1; i < rank; ++i) {
9581 mono_mb_patch_branch (mb, branch_positions [i]);
9582 }
9583 mono_mb_patch_branch (mb, branch_pos);
9584 /* throw exception */
9585 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9586
9587 g_free (branch_positions);
9588 ret = mono_mb_create_method (mb, sig, 4);
9589 mono_mb_free (mb);
9590
9591 /* cache the result */
9592 cached = 0;
9593 mono_marshal_lock ();
9594 for (i = 0; i < elem_addr_cache_next; ++i) {
9595 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9596 /* FIXME: free ret */
9597 ret = elem_addr_cache [i].method;
9598 cached = TRUE;
9599 break;
9600 }
9601 }
9602 if (!cached) {
9603 ElementAddrWrapperInfo *info;
9604
9605 if (elem_addr_cache_next >= elem_addr_cache_size) {
9606 int new_size = elem_addr_cache_size + 4;
9607 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9608 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9609 g_free (elem_addr_cache);
9610 elem_addr_cache = new_array;
9611 elem_addr_cache_size = new_size;
9612 }
9613 elem_addr_cache [elem_addr_cache_next].rank = rank;
9614 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9615 elem_addr_cache [elem_addr_cache_next].method = ret;
9616
9617 info = mono_image_alloc0 (mono_defaults.corlib, sizeof (ElementAddrWrapperInfo));
9618 info->rank = rank;
9619 info->elem_size = elem_size;
9620
9621 mono_marshal_set_wrapper_info (ret, info);
9622 }
9623 mono_marshal_unlock ();
9624 return ret;
9625 }
9626
9627 void*
9628 mono_marshal_alloc (gulong size)
9629 {
9630 gpointer res;
9631
9632 #ifdef HOST_WIN32
9633 res = CoTaskMemAlloc (size);
9634 #else
9635 res = g_try_malloc ((gulong)size);
9636 if (!res)
9637 mono_gc_out_of_memory ((gulong)size);
9638 #endif
9639 return res;
9640 }
9641
9642 void
9643 mono_marshal_free (gpointer ptr)
9644 {
9645 #ifdef HOST_WIN32
9646 CoTaskMemFree (ptr);
9647 #else
9648 g_free (ptr);
9649 #endif
9650 }
9651
9652 void
9653 mono_marshal_free_array (gpointer *ptr, int size)
9654 {
9655 int i;
9656
9657 if (!ptr)
9658 return;
9659
9660 for (i = 0; i < size; i++)
9661 if (ptr [i])
9662 g_free (ptr [i]);
9663 }
9664
9665 void *
9666 mono_marshal_string_to_utf16 (MonoString *s)
9667 {
9668 return s ? mono_string_chars (s) : NULL;
9669 }
9670
9671 static void *
9672 mono_marshal_string_to_utf16_copy (MonoString *s)
9673 {
9674 if (s == NULL) {
9675 return NULL;
9676 } else {
9677 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9678 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9679 res [mono_string_length (s)] = 0;
9680 return res;
9681 }
9682 }
9683
9684 /**
9685 * mono_marshal_set_last_error:
9686 *
9687 * This function is invoked to set the last error value from a P/Invoke call
9688 * which has SetLastError set.
9689 */
9690 void
9691 mono_marshal_set_last_error (void)
9692 {
9693 #ifdef WIN32
9694 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9695 #else
9696 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
9697 #endif
9698 }
9699
9700 static void
9701 mono_marshal_set_last_error_windows (int error)
9702 {
9703 #ifdef WIN32
9704 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
9705 #endif
9706 }
9707
9708 void
9709 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9710 gpointer dest, gint32 length)
9711 {
9712 int element_size;
9713 void *source_addr;
9714
9715 MONO_ARCH_SAVE_REGS;
9716
9717 MONO_CHECK_ARG_NULL (src);
9718 MONO_CHECK_ARG_NULL (dest);
9719
9720 if (src->obj.vtable->klass->rank != 1)
9721 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9722 if (start_index < 0)
9723 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9724 if (length < 0)
9725 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9726 if (start_index + length > mono_array_length (src))
9727 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9728
9729 element_size = mono_array_element_size (src->obj.vtable->klass);
9730
9731 /* no references should be involved */
9732 source_addr = mono_array_addr_with_size (src, element_size, start_index);
9733
9734 memcpy (dest, source_addr, length * element_size);
9735 }
9736
9737 void
9738 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9739 MonoArray *dest, gint32 length)
9740 {
9741 int element_size;
9742 void *dest_addr;
9743
9744 MONO_ARCH_SAVE_REGS;
9745
9746 MONO_CHECK_ARG_NULL (src);
9747 MONO_CHECK_ARG_NULL (dest);
9748
9749 if (dest->obj.vtable->klass->rank != 1)
9750 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9751 if (start_index < 0)
9752 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9753 if (length < 0)
9754 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9755 if (start_index + length > mono_array_length (dest))
9756 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9757
9758 element_size = mono_array_element_size (dest->obj.vtable->klass);
9759
9760 /* no references should be involved */
9761 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
9762
9763 memcpy (dest_addr, src, length * element_size);
9764 }
9765
9766 #if NO_UNALIGNED_ACCESS
9767 #define RETURN_UNALIGNED(type, addr) \
9768 { \
9769 type val; \
9770 memcpy(&val, p + offset, sizeof(val)); \
9771 return val; \
9772 }
9773 #define WRITE_UNALIGNED(type, addr, val) \
9774 memcpy(addr, &val, sizeof(type))
9775 #else
9776 #define RETURN_UNALIGNED(type, addr) \
9777 return *(type*)(p + offset);
9778 #define WRITE_UNALIGNED(type, addr, val) \
9779 (*(type *)(addr) = (val))
9780 #endif
9781
9782 gpointer
9783 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
9784 {
9785 char *p = ptr;
9786
9787 MONO_ARCH_SAVE_REGS;
9788
9789 RETURN_UNALIGNED(gpointer, p + offset);
9790 }
9791
9792 unsigned char
9793 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
9794 {
9795 char *p = ptr;
9796
9797 MONO_ARCH_SAVE_REGS;
9798
9799 return *(unsigned char*)(p + offset);
9800 }
9801
9802 gint16
9803 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
9804 {
9805 char *p = ptr;
9806
9807 MONO_ARCH_SAVE_REGS;
9808
9809 RETURN_UNALIGNED(gint16, p + offset);
9810 }
9811
9812 gint32
9813 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
9814 {
9815 char *p = ptr;
9816
9817 MONO_ARCH_SAVE_REGS;
9818
9819 RETURN_UNALIGNED(gint32, p + offset);
9820 }
9821
9822 gint64
9823 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
9824 {
9825 char *p = ptr;
9826
9827 MONO_ARCH_SAVE_REGS;
9828
9829 RETURN_UNALIGNED(gint64, p + offset);
9830 }
9831
9832 void
9833 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
9834 {
9835 char *p = ptr;
9836
9837 MONO_ARCH_SAVE_REGS;
9838
9839 *(unsigned char*)(p + offset) = val;
9840 }
9841
9842 void
9843 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
9844 {
9845 char *p = ptr;
9846
9847 MONO_ARCH_SAVE_REGS;
9848
9849 WRITE_UNALIGNED(gpointer, p + offset, val);
9850 }
9851
9852 void
9853 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
9854 {
9855 char *p = ptr;
9856
9857 MONO_ARCH_SAVE_REGS;
9858
9859 WRITE_UNALIGNED(gint16, p + offset, val);
9860 }
9861
9862 void
9863 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
9864 {
9865 char *p = ptr;
9866
9867 MONO_ARCH_SAVE_REGS;
9868
9869 WRITE_UNALIGNED(gint32, p + offset, val);
9870 }
9871
9872 void
9873 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
9874 {
9875 char *p = ptr;
9876
9877 MONO_ARCH_SAVE_REGS;
9878
9879 WRITE_UNALIGNED(gint64, p + offset, val);
9880 }
9881
9882 MonoString *
9883 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9884 {
9885 MONO_ARCH_SAVE_REGS;
9886
9887 if (ptr == NULL)
9888 return NULL;
9889 else
9890 return mono_string_new (mono_domain_get (), ptr);
9891 }
9892
9893 MonoString *
9894 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9895 {
9896 MONO_ARCH_SAVE_REGS;
9897
9898 if (ptr == NULL) {
9899 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9900 g_assert_not_reached ();
9901 return NULL;
9902 } else {
9903 return mono_string_new_len (mono_domain_get (), ptr, len);
9904 }
9905 }
9906
9907 MonoString *
9908 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9909 {
9910 MonoDomain *domain = mono_domain_get ();
9911 int len = 0;
9912 guint16 *t = ptr;
9913
9914 MONO_ARCH_SAVE_REGS;
9915
9916 if (ptr == NULL)
9917 return NULL;
9918
9919 while (*t++)
9920 len++;
9921
9922 return mono_string_new_utf16 (domain, ptr, len);
9923 }
9924
9925 MonoString *
9926 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9927 {
9928 MonoDomain *domain = mono_domain_get ();
9929
9930 MONO_ARCH_SAVE_REGS;
9931
9932 if (ptr == NULL) {
9933 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9934 g_assert_not_reached ();
9935 return NULL;
9936 } else {
9937 return mono_string_new_utf16 (domain, ptr, len);
9938 }
9939 }
9940
9941 guint32
9942 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
9943 {
9944 MONO_ARCH_SAVE_REGS;
9945
9946 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
9947 }
9948
9949 guint32
9950 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
9951 {
9952 MonoClass *klass;
9953 MonoType *type;
9954 guint32 layout;
9955
9956 MONO_ARCH_SAVE_REGS;
9957
9958 MONO_CHECK_ARG_NULL (rtype);
9959
9960 type = rtype->type;
9961 klass = mono_class_from_mono_type (type);
9962 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
9963
9964 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9965 gchar *msg;
9966 MonoException *exc;
9967
9968 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
9969 exc = mono_get_exception_argument ("t", msg);
9970 g_free (msg);
9971 mono_raise_exception (exc);
9972 }
9973
9974
9975 return mono_class_native_size (klass, NULL);
9976 }
9977
9978 void
9979 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
9980 {
9981 MonoMethod *method;
9982 gpointer pa [3];
9983
9984 MONO_ARCH_SAVE_REGS;
9985
9986 MONO_CHECK_ARG_NULL (obj);
9987 MONO_CHECK_ARG_NULL (dst);
9988
9989 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
9990
9991 pa [0] = obj;
9992 pa [1] = &dst;
9993 pa [2] = &delete_old;
9994
9995 mono_runtime_invoke (method, NULL, pa, NULL);
9996 }
9997
9998 static void
9999 ptr_to_structure (gpointer src, MonoObject *dst)
10000 {
10001 MonoMethod *method;
10002 gpointer pa [2];
10003
10004 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10005
10006 pa [0] = &src;
10007 pa [1] = dst;
10008
10009 mono_runtime_invoke (method, NULL, pa, NULL);
10010 }
10011
10012 void
10013 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10014 {
10015 MonoType *t;
10016
10017 MONO_ARCH_SAVE_REGS;
10018
10019 MONO_CHECK_ARG_NULL (src);
10020 MONO_CHECK_ARG_NULL (dst);
10021
10022 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10023
10024 if (t->type == MONO_TYPE_VALUETYPE) {
10025 MonoException *exc;
10026 gchar *tmp;
10027
10028 tmp = g_strdup_printf ("Destination is a boxed value type.");
10029 exc = mono_get_exception_argument ("dst", tmp);
10030 g_free (tmp);
10031
10032 mono_raise_exception (exc);
10033 return;
10034 }
10035
10036 ptr_to_structure (src, dst);
10037 }
10038
10039 MonoObject *
10040 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10041 {
10042 MonoDomain *domain = mono_domain_get ();
10043 MonoObject *res;
10044
10045 MONO_ARCH_SAVE_REGS;
10046
10047 MONO_CHECK_ARG_NULL (src);
10048 MONO_CHECK_ARG_NULL (type);
10049
10050 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
10051
10052 ptr_to_structure (src, res);
10053
10054 return res;
10055 }
10056
10057 int
10058 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10059 {
10060 MonoMarshalType *info;
10061 MonoClass *klass;
10062 char *fname;
10063 int match_index = -1;
10064
10065 MONO_ARCH_SAVE_REGS;
10066
10067 MONO_CHECK_ARG_NULL (type);
10068 MONO_CHECK_ARG_NULL (field_name);
10069
10070 fname = mono_string_to_utf8 (field_name);
10071 klass = mono_class_from_mono_type (type->type);
10072
10073 while (klass && match_index == -1) {
10074 MonoClassField* field;
10075 int i = 0;
10076 gpointer iter = NULL;
10077 while ((field = mono_class_get_fields (klass, &iter))) {
10078 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10079 continue;
10080 if (!strcmp (fname, mono_field_get_name (field))) {
10081 match_index = i;
10082 break;
10083 }
10084 i ++;
10085 }
10086
10087 if (match_index == -1)
10088 klass = klass->parent;
10089 }
10090
10091 g_free (fname);
10092
10093 if(match_index == -1) {
10094 MonoException* exc;
10095 gchar *tmp;
10096
10097 /* Get back original class instance */
10098 klass = mono_class_from_mono_type (type->type);
10099
10100 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10101 exc = mono_get_exception_argument ("fieldName", tmp);
10102 g_free (tmp);
10103
10104 mono_raise_exception ((MonoException*)exc);
10105 }
10106
10107 info = mono_marshal_load_type_info (klass);
10108 return info->fields [match_index].offset;
10109 }
10110
10111 gpointer
10112 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10113 {
10114 #ifdef HOST_WIN32
10115 char* tres, *ret;
10116 size_t len;
10117 tres = mono_string_to_utf8 (string);
10118 if (!tres)
10119 return tres;
10120
10121 len = strlen (tres) + 1;
10122 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10123 memcpy (ret, tres, len);
10124 g_free (tres);
10125 return ret;
10126
10127 #else
10128 return mono_string_to_utf8 (string);
10129 #endif
10130 }
10131
10132 gpointer
10133 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10134 {
10135 MONO_ARCH_SAVE_REGS;
10136
10137 if (string == NULL)
10138 return NULL;
10139 else {
10140 #ifdef TARGET_WIN32
10141 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10142 ((mono_string_length (string) + 1) * 2);
10143 #else
10144 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10145 #endif
10146 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10147 res [mono_string_length (string)] = 0;
10148 return res;
10149 }
10150 }
10151
10152 static void
10153 mono_struct_delete_old (MonoClass *klass, char *ptr)
10154 {
10155 MonoMarshalType *info;
10156 int i;
10157
10158 info = mono_marshal_load_type_info (klass);
10159
10160 for (i = 0; i < info->num_fields; i++) {
10161 MonoMarshalNative ntype;
10162 MonoMarshalConv conv;
10163 MonoType *ftype = info->fields [i].field->type;
10164 char *cpos;
10165
10166 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10167 continue;
10168
10169 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10170 klass->unicode, &conv);
10171
10172 cpos = ptr + info->fields [i].offset;
10173
10174 switch (conv) {
10175 case MONO_MARSHAL_CONV_NONE:
10176 if (MONO_TYPE_ISSTRUCT (ftype)) {
10177 mono_struct_delete_old (ftype->data.klass, cpos);
10178 continue;
10179 }
10180 break;
10181 case MONO_MARSHAL_CONV_STR_LPWSTR:
10182 /* We assume this field points inside a MonoString */
10183 break;
10184 case MONO_MARSHAL_CONV_STR_LPTSTR:
10185 #ifdef TARGET_WIN32
10186 /* We assume this field points inside a MonoString
10187 * on Win32 */
10188 break;
10189 #endif
10190 case MONO_MARSHAL_CONV_STR_LPSTR:
10191 case MONO_MARSHAL_CONV_STR_BSTR:
10192 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10193 case MONO_MARSHAL_CONV_STR_TBSTR:
10194 mono_marshal_free (*(gpointer *)cpos);
10195 break;
10196
10197 default:
10198 continue;
10199 }
10200 }
10201 }
10202
10203 void
10204 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10205 {
10206 MonoClass *klass;
10207
10208 MONO_ARCH_SAVE_REGS;
10209
10210 MONO_CHECK_ARG_NULL (src);
10211 MONO_CHECK_ARG_NULL (type);
10212
10213 klass = mono_class_from_mono_type (type->type);
10214
10215 mono_struct_delete_old (klass, (char *)src);
10216 }
10217
10218 void*
10219 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10220 {
10221 gpointer res;
10222
10223 MONO_ARCH_SAVE_REGS;
10224
10225 if ((gulong)size == 0)
10226 /* This returns a valid pointer for size 0 on MS.NET */
10227 size = 4;
10228
10229 #ifdef HOST_WIN32
10230 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10231 #else
10232 res = g_try_malloc ((gulong)size);
10233 #endif
10234 if (!res)
10235 mono_gc_out_of_memory ((gulong)size);
10236
10237 return res;
10238 }
10239
10240 gpointer
10241 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10242 {
10243 gpointer res;
10244
10245 if (ptr == NULL) {
10246 mono_gc_out_of_memory ((gulong)size);
10247 return NULL;
10248 }
10249
10250 #ifdef HOST_WIN32
10251 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10252 #else
10253 res = g_try_realloc (ptr, (gulong)size);
10254 #endif
10255 if (!res)
10256 mono_gc_out_of_memory ((gulong)size);
10257
10258 return res;
10259 }
10260
10261 void
10262 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10263 {
10264 MONO_ARCH_SAVE_REGS;
10265
10266 #ifdef HOST_WIN32
10267 GlobalFree (ptr);
10268 #else
10269 g_free (ptr);
10270 #endif
10271 }
10272
10273 void*
10274 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10275 {
10276 MONO_ARCH_SAVE_REGS;
10277
10278 #ifdef HOST_WIN32
10279 return CoTaskMemAlloc (size);
10280 #else
10281 return g_try_malloc ((gulong)size);
10282 #endif
10283 }
10284
10285 void
10286 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10287 {
10288 MONO_ARCH_SAVE_REGS;
10289
10290 #ifdef HOST_WIN32
10291 CoTaskMemFree (ptr);
10292 #else
10293 g_free (ptr);
10294 #endif
10295 }
10296
10297 gpointer
10298 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10299 {
10300 MONO_ARCH_SAVE_REGS;
10301
10302 #ifdef HOST_WIN32
10303 return CoTaskMemRealloc (ptr, size);
10304 #else
10305 return g_try_realloc (ptr, (gulong)size);
10306 #endif
10307 }
10308
10309 void*
10310 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10311 {
10312 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10313 }
10314
10315 MonoDelegate*
10316 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10317 {
10318 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
10319 }
10320
10321 /**
10322 * mono_marshal_is_loading_type_info:
10323 *
10324 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10325 * thread.
10326 */
10327 static gboolean
10328 mono_marshal_is_loading_type_info (MonoClass *klass)
10329 {
10330 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
10331
10332 return g_slist_find (loads_list, klass) != NULL;
10333 }
10334
10335 /**
10336 * mono_marshal_load_type_info:
10337 *
10338 * Initialize klass->marshal_info using information from metadata. This function can
10339 * recursively call itself, and the caller is responsible to avoid that by calling
10340 * mono_marshal_is_loading_type_info () beforehand.
10341 *
10342 * LOCKING: Acquires the loader lock.
10343 */
10344 MonoMarshalType *
10345 mono_marshal_load_type_info (MonoClass* klass)
10346 {
10347 int j, count = 0;
10348 guint32 native_size = 0, min_align = 1;
10349 MonoMarshalType *info;
10350 MonoClassField* field;
10351 gpointer iter;
10352 guint32 layout;
10353 GSList *loads_list;
10354
10355 g_assert (klass != NULL);
10356
10357 if (klass->marshal_info)
10358 return klass->marshal_info;
10359
10360 if (!klass->inited)
10361 mono_class_init (klass);
10362
10363 mono_loader_lock ();
10364
10365 if (klass->marshal_info) {
10366 mono_loader_unlock ();
10367 return klass->marshal_info;
10368 }
10369
10370 /*
10371 * This function can recursively call itself, so we keep the list of classes which are
10372 * under initialization in a TLS list.
10373 */
10374 g_assert (!mono_marshal_is_loading_type_info (klass));
10375 loads_list = TlsGetValue (load_type_info_tls_id);
10376 loads_list = g_slist_prepend (loads_list, klass);
10377 TlsSetValue (load_type_info_tls_id, loads_list);
10378
10379 iter = NULL;
10380 while ((field = mono_class_get_fields (klass, &iter))) {
10381 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10382 continue;
10383 if (mono_field_is_deleted (field))
10384 continue;
10385 count++;
10386 }
10387
10388 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10389
10390 /* The mempool is protected by the loader lock */
10391 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10392 info->num_fields = count;
10393
10394 /* Try to find a size for this type in metadata */
10395 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10396
10397 if (klass->parent) {
10398 int parent_size = mono_class_native_size (klass->parent, NULL);
10399
10400 /* Add parent size to real size */
10401 native_size += parent_size;
10402 info->native_size = parent_size;
10403 }
10404
10405 iter = NULL;
10406 j = 0;
10407 while ((field = mono_class_get_fields (klass, &iter))) {
10408 int size;
10409 guint32 align;
10410
10411 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10412 continue;
10413
10414 if (mono_field_is_deleted (field))
10415 continue;
10416 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10417 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10418 NULL, NULL, &info->fields [j].mspec);
10419
10420 info->fields [j].field = field;
10421
10422 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10423 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10424 /* This field is a hack inserted by MCS to empty structures */
10425 continue;
10426 }
10427
10428 switch (layout) {
10429 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10430 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10431 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10432 &align, TRUE, klass->unicode);
10433 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10434 min_align = MAX (align, min_align);
10435 info->fields [j].offset = info->native_size;
10436 info->fields [j].offset += align - 1;
10437 info->fields [j].offset &= ~(align - 1);
10438 info->native_size = info->fields [j].offset + size;
10439 break;
10440 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10441 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10442 &align, TRUE, klass->unicode);
10443 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10444 min_align = MAX (align, min_align);
10445 info->fields [j].offset = field->offset - sizeof (MonoObject);
10446 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10447 break;
10448 }
10449 j++;
10450 }
10451
10452 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10453 info->native_size = MAX (native_size, info->native_size);
10454 }
10455
10456 if (info->native_size & (min_align - 1)) {
10457 info->native_size += min_align - 1;
10458 info->native_size &= ~(min_align - 1);
10459 }
10460
10461 info->min_align = min_align;
10462
10463 /* Update the class's blittable info, if the layouts don't match */
10464 if (info->native_size != mono_class_value_size (klass, NULL))
10465 klass->blittable = FALSE;
10466
10467 /* If this is an array type, ensure that we have element info */
10468 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
10469 mono_marshal_load_type_info (klass->element_class);
10470 }
10471
10472 loads_list = TlsGetValue (load_type_info_tls_id);
10473 loads_list = g_slist_remove (loads_list, klass);
10474 TlsSetValue (load_type_info_tls_id, loads_list);
10475
10476 /*We do double-checking locking on marshal_info */
10477 mono_memory_barrier ();
10478
10479 klass->marshal_info = info;
10480
10481 mono_loader_unlock ();
10482
10483 return klass->marshal_info;
10484 }
10485
10486 /**
10487 * mono_class_native_size:
10488 * @klass: a class
10489 *
10490 * Returns: the native size of an object instance (when marshaled
10491 * to unmanaged code)
10492 */
10493 gint32
10494 mono_class_native_size (MonoClass *klass, guint32 *align)
10495 {
10496 if (!klass->marshal_info) {
10497 if (mono_marshal_is_loading_type_info (klass)) {
10498 if (align)
10499 *align = 0;
10500 return 0;
10501 } else {
10502 mono_marshal_load_type_info (klass);
10503 }
10504 }
10505
10506 if (align)
10507 *align = klass->marshal_info->min_align;
10508
10509 return klass->marshal_info->native_size;
10510 }
10511
10512 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
10513 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
10514 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
10515 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
10516
10517 /*
10518 * mono_type_native_stack_size:
10519 * @t: the type to return the size it uses on the stack
10520 *
10521 * Returns: the number of bytes required to hold an instance of this
10522 * type on the native stack
10523 */
10524 int
10525 mono_type_native_stack_size (MonoType *t, guint32 *align)
10526 {
10527 guint32 tmp;
10528
10529 g_assert (t != NULL);
10530
10531 if (!align)
10532 align = &tmp;
10533
10534 if (t->byref) {
10535 *align = sizeof (gpointer);
10536 return sizeof (gpointer);
10537 }
10538
10539 switch (t->type){
10540 case MONO_TYPE_BOOLEAN:
10541 case MONO_TYPE_CHAR:
10542 case MONO_TYPE_I1:
10543 case MONO_TYPE_U1:
10544 case MONO_TYPE_I2:
10545 case MONO_TYPE_U2:
10546 case MONO_TYPE_I4:
10547 case MONO_TYPE_U4:
10548 *align = 4;
10549 return 4;
10550 case MONO_TYPE_I:
10551 case MONO_TYPE_U:
10552 case MONO_TYPE_STRING:
10553 case MONO_TYPE_OBJECT:
10554 case MONO_TYPE_CLASS:
10555 case MONO_TYPE_SZARRAY:
10556 case MONO_TYPE_PTR:
10557 case MONO_TYPE_FNPTR:
10558 case MONO_TYPE_ARRAY:
10559 *align = sizeof (gpointer);
10560 return sizeof (gpointer);
10561 case MONO_TYPE_R4:
10562 *align = 4;
10563 return 4;
10564 case MONO_TYPE_R8:
10565 *align = ALIGNMENT (gdouble);
10566 return 8;
10567 case MONO_TYPE_I8:
10568 case MONO_TYPE_U8:
10569 *align = ALIGNMENT (glong);
10570 return 8;
10571 case MONO_TYPE_GENERICINST:
10572 if (!mono_type_generic_inst_is_valuetype (t)) {
10573 *align = sizeof (gpointer);
10574 return sizeof (gpointer);
10575 }
10576 /* Fall through */
10577 case MONO_TYPE_TYPEDBYREF:
10578 case MONO_TYPE_VALUETYPE: {
10579 guint32 size;
10580 MonoClass *klass = mono_class_from_mono_type (t);
10581
10582 if (klass->enumtype)
10583 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10584 else {
10585 size = mono_class_native_size (klass, align);
10586 *align = *align + 3;
10587 *align &= ~3;
10588
10589 size += 3;
10590 size &= ~3;
10591
10592 return size;
10593 }
10594 }
10595 default:
10596 g_error ("type 0x%02x unknown", t->type);
10597 }
10598 return 0;
10599 }
10600
10601 gint32
10602 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10603 gboolean as_field, gboolean unicode)
10604 {
10605 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10606 MonoClass *klass;
10607
10608 switch (native_type) {
10609 case MONO_NATIVE_BOOLEAN:
10610 *align = 4;
10611 return 4;
10612 case MONO_NATIVE_I1:
10613 case MONO_NATIVE_U1:
10614 *align = 1;
10615 return 1;
10616 case MONO_NATIVE_I2:
10617 case MONO_NATIVE_U2:
10618 case MONO_NATIVE_VARIANTBOOL:
10619 *align = 2;
10620 return 2;
10621 case MONO_NATIVE_I4:
10622 case MONO_NATIVE_U4:
10623 case MONO_NATIVE_ERROR:
10624 *align = 4;
10625 return 4;
10626 case MONO_NATIVE_I8:
10627 case MONO_NATIVE_U8:
10628 *align = ALIGNMENT(guint64);
10629 return 8;
10630 case MONO_NATIVE_R4:
10631 *align = 4;
10632 return 4;
10633 case MONO_NATIVE_R8:
10634 *align = ALIGNMENT(double);
10635 return 8;
10636 case MONO_NATIVE_INT:
10637 case MONO_NATIVE_UINT:
10638 case MONO_NATIVE_LPSTR:
10639 case MONO_NATIVE_LPWSTR:
10640 case MONO_NATIVE_LPTSTR:
10641 case MONO_NATIVE_BSTR:
10642 case MONO_NATIVE_ANSIBSTR:
10643 case MONO_NATIVE_TBSTR:
10644 case MONO_NATIVE_LPARRAY:
10645 case MONO_NATIVE_SAFEARRAY:
10646 case MONO_NATIVE_IUNKNOWN:
10647 case MONO_NATIVE_IDISPATCH:
10648 case MONO_NATIVE_INTERFACE:
10649 case MONO_NATIVE_ASANY:
10650 case MONO_NATIVE_FUNC:
10651 case MONO_NATIVE_LPSTRUCT:
10652 *align = ALIGNMENT(gpointer);
10653 return sizeof (gpointer);
10654 case MONO_NATIVE_STRUCT:
10655 klass = mono_class_from_mono_type (type);
10656 if (klass == mono_defaults.object_class &&
10657 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10658 *align = 16;
10659 return 16;
10660 }
10661 return mono_class_native_size (klass, align);
10662 case MONO_NATIVE_BYVALTSTR: {
10663 int esize = unicode ? 2: 1;
10664 g_assert (mspec);
10665 *align = esize;
10666 return mspec->data.array_data.num_elem * esize;
10667 }
10668 case MONO_NATIVE_BYVALARRAY: {
10669 // FIXME: Have to consider ArraySubType
10670 int esize;
10671 klass = mono_class_from_mono_type (type);
10672 if (klass->element_class == mono_defaults.char_class) {
10673 esize = unicode ? 2 : 1;
10674 *align = esize;
10675 } else {
10676 esize = mono_class_native_size (klass->element_class, align);
10677 }
10678 g_assert (mspec);
10679 return mspec->data.array_data.num_elem * esize;
10680 }
10681 case MONO_NATIVE_CUSTOM:
10682 *align = sizeof (gpointer);
10683 return sizeof (gpointer);
10684 break;
10685 case MONO_NATIVE_CURRENCY:
10686 case MONO_NATIVE_VBBYREFSTR:
10687 default:
10688 g_error ("native type %02x not implemented", native_type);
10689 break;
10690 }
10691 g_assert_not_reached ();
10692 return 0;
10693 }
10694
10695 gpointer
10696 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10697 {
10698 MonoType *t;
10699 MonoClass *klass;
10700
10701 if (o == NULL)
10702 return NULL;
10703
10704 t = &o->vtable->klass->byval_arg;
10705 switch (t->type) {
10706 case MONO_TYPE_I4:
10707 case MONO_TYPE_U4:
10708 case MONO_TYPE_PTR:
10709 case MONO_TYPE_I1:
10710 case MONO_TYPE_U1:
10711 case MONO_TYPE_BOOLEAN:
10712 case MONO_TYPE_I2:
10713 case MONO_TYPE_U2:
10714 case MONO_TYPE_CHAR:
10715 case MONO_TYPE_I8:
10716 case MONO_TYPE_U8:
10717 case MONO_TYPE_R4:
10718 case MONO_TYPE_R8:
10719 return mono_object_unbox (o);
10720 break;
10721 case MONO_TYPE_STRING:
10722 switch (string_encoding) {
10723 case MONO_NATIVE_LPWSTR:
10724 return mono_string_to_utf16 ((MonoString*)o);
10725 break;
10726 case MONO_NATIVE_LPSTR:
10727 return mono_string_to_lpstr ((MonoString*)o);
10728 break;
10729 default:
10730 g_warning ("marshaling conversion %d not implemented", string_encoding);
10731 g_assert_not_reached ();
10732 }
10733 break;
10734 case MONO_TYPE_CLASS:
10735 case MONO_TYPE_VALUETYPE: {
10736 MonoMethod *method;
10737 gpointer pa [3];
10738 gpointer res;
10739 MonoBoolean delete_old = FALSE;
10740
10741 klass = t->data.klass;
10742
10743 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10744 break;
10745
10746 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10747 klass->blittable || klass->enumtype))
10748 return mono_object_unbox (o);
10749
10750 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10751
10752 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10753 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10754
10755 pa [0] = o;
10756 pa [1] = &res;
10757 pa [2] = &delete_old;
10758
10759 mono_runtime_invoke (method, NULL, pa, NULL);
10760 }
10761
10762 return res;
10763 }
10764 }
10765
10766 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10767
10768 return NULL;
10769 }
10770
10771 void
10772 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10773 {
10774 MonoType *t;
10775 MonoClass *klass;
10776
10777 if (o == NULL)
10778 return;
10779
10780 t = &o->vtable->klass->byval_arg;
10781 switch (t->type) {
10782 case MONO_TYPE_STRING:
10783 switch (string_encoding) {
10784 case MONO_NATIVE_LPWSTR:
10785 case MONO_NATIVE_LPSTR:
10786 mono_marshal_free (ptr);
10787 break;
10788 default:
10789 g_warning ("marshaling conversion %d not implemented", string_encoding);
10790 g_assert_not_reached ();
10791 }
10792 break;
10793 case MONO_TYPE_CLASS:
10794 case MONO_TYPE_VALUETYPE: {
10795 klass = t->data.klass;
10796
10797 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10798 klass->blittable || klass->enumtype))
10799 break;
10800
10801 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10802 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10803 gpointer pa [2];
10804
10805 pa [0] = &ptr;
10806 pa [1] = o;
10807
10808 mono_runtime_invoke (method, NULL, pa, NULL);
10809 }
10810
10811 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10812 mono_struct_delete_old (klass, ptr);
10813 }
10814
10815 mono_marshal_free (ptr);
10816 break;
10817 }
10818 default:
10819 break;
10820 }
10821 }
10822
10823 MonoMethod *
10824 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10825 {
10826 MonoMethodSignature *sig, *csig;
10827 MonoMethodBuilder *mb;
10828 MonoMethod *res;
10829 int i;
10830
10831 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10832 mb->method->slot = -1;
10833
10834 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10835 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10836
10837 sig = mono_method_signature (method);
10838 csig = signature_dup (method->klass->image, sig);
10839 csig->generic_param_count = 0;
10840
10841 mono_mb_emit_ldarg (mb, 0);
10842 for (i = 0; i < csig->param_count; i++)
10843 mono_mb_emit_ldarg (mb, i + 1);
10844 mono_mb_emit_managed_call (mb, method, NULL);
10845 mono_mb_emit_byte (mb, CEE_RET);
10846
10847 /* We can corlib internal methods */
10848 mb->skip_visibility = TRUE;
10849
10850 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
10851
10852 mono_mb_free (mb);
10853
10854 return res;
10855 }
10856
10857 /*
10858 * The mono_win32_compat_* functions are implementations of inline
10859 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10860 * although not exported by kernel32.
10861 *
10862 * We map the appropiate kernel32 entries to these functions using
10863 * dllmaps declared in the global etc/mono/config.
10864 */
10865
10866 void
10867 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10868 {
10869 if (!dest || !source)
10870 return;
10871
10872 memcpy (dest, source, length);
10873 }
10874
10875 void
10876 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10877 {
10878 memset (dest, fill, length);
10879 }
10880
10881 void
10882 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10883 {
10884 if (!dest || !source)
10885 return;
10886
10887 memmove (dest, source, length);
10888 }
10889
10890 void
10891 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10892 {
10893 memset (dest, 0, length);
10894 }
10895
10896 void
10897 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10898 {
10899 int i;
10900 guint8 byte;
10901
10902 for (i = 0; i < len; ++i)
10903 if (buf [i])
10904 break;
10905
10906 g_assert (i < len);
10907
10908 byte = buf [i];
10909 while (byte && !(byte & 1))
10910 byte >>= 1;
10911 g_assert (byte == 1);
10912
10913 *byte_offset = i;
10914 *bitmask = buf [i];
10915 }
10916
10917 MonoMethod *
10918 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
10919 {
10920 MonoMethodBuilder *mb;
10921 MonoMethodSignature *sig, *csig;
10922 MonoExceptionClause *clause;
10923 MonoImage *image;
10924 MonoClass *klass;
10925 GHashTable *cache;
10926 MonoMethod *res;
10927 int i, param_count, sig_size, pos_leave;
10928
10929 g_assert (method);
10930
10931 klass = method->klass;
10932 image = method->klass->image;
10933 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
10934
10935 if ((res = mono_marshal_find_in_cache (cache, method)))
10936 return res;
10937
10938 sig = mono_method_signature (method);
10939 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
10940
10941 /* add "this" and exception param */
10942 param_count = sig->param_count + sig->hasthis + 1;
10943
10944 /* dup & extend signature */
10945 csig = mono_metadata_signature_alloc (image, param_count);
10946 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
10947 memcpy (csig, sig, sig_size);
10948 csig->param_count = param_count;
10949 csig->hasthis = 0;
10950 csig->pinvoke = 1;
10951 csig->call_convention = MONO_CALL_DEFAULT;
10952
10953 if (sig->hasthis) {
10954 /* add "this" */
10955 csig->params [0] = &klass->byval_arg;
10956 /* move params up by one */
10957 for (i = 0; i < sig->param_count; i++)
10958 csig->params [i + 1] = sig->params [i];
10959 }
10960
10961 /* setup exception param as byref+[out] */
10962 csig->params [param_count - 1] = mono_metadata_type_dup (image,
10963 &mono_defaults.exception_class->byval_arg);
10964 csig->params [param_count - 1]->byref = 1;
10965 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
10966
10967 /* convert struct return to object */
10968 if (MONO_TYPE_ISSTRUCT (sig->ret))
10969 csig->ret = &mono_defaults.object_class->byval_arg;
10970
10971 /* local 0 (temp for exception object) */
10972 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
10973
10974 /* local 1 (temp for result) */
10975 if (!MONO_TYPE_IS_VOID (sig->ret))
10976 mono_mb_add_local (mb, sig->ret);
10977
10978 /* clear exception arg */
10979 mono_mb_emit_ldarg (mb, param_count - 1);
10980 mono_mb_emit_byte (mb, CEE_LDNULL);
10981 mono_mb_emit_byte (mb, CEE_STIND_REF);
10982
10983 /* try */
10984 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
10985 clause->try_offset = mono_mb_get_label (mb);
10986
10987 /* push method's args */
10988 for (i = 0; i < param_count - 1; i++) {
10989 MonoType *type;
10990 MonoClass *klass;
10991
10992 mono_mb_emit_ldarg (mb, i);
10993
10994 /* get the byval type of the param */
10995 klass = mono_class_from_mono_type (csig->params [i]);
10996 type = &klass->byval_arg;
10997
10998 /* unbox struct args */
10999 if (MONO_TYPE_ISSTRUCT (type)) {
11000 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11001
11002 /* byref args & and the "this" arg must remain a ptr.
11003 Otherwise make a copy of the value type */
11004 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11005 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11006
11007 csig->params [i] = &mono_defaults.object_class->byval_arg;
11008 }
11009 }
11010
11011 /* call */
11012 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11013 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11014 else
11015 mono_mb_emit_op (mb, CEE_CALL, method);
11016
11017 /* save result at local 1 */
11018 if (!MONO_TYPE_IS_VOID (sig->ret))
11019 mono_mb_emit_stloc (mb, 1);
11020
11021 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11022
11023 /* catch */
11024 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11025 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11026 clause->data.catch_class = mono_defaults.object_class;
11027
11028 clause->handler_offset = mono_mb_get_label (mb);
11029
11030 /* store exception at local 0 */
11031 mono_mb_emit_stloc (mb, 0);
11032 mono_mb_emit_ldarg (mb, param_count - 1);
11033 mono_mb_emit_ldloc (mb, 0);
11034 mono_mb_emit_byte (mb, CEE_STIND_REF);
11035 mono_mb_emit_branch (mb, CEE_LEAVE);
11036
11037 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11038
11039 mono_mb_set_clauses (mb, 1, clause);
11040
11041 mono_mb_patch_branch (mb, pos_leave);
11042 /* end-try */
11043
11044 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11045 mono_mb_emit_ldloc (mb, 1);
11046
11047 /* box the return value */
11048 if (MONO_TYPE_ISSTRUCT (sig->ret))
11049 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11050 }
11051
11052 mono_mb_emit_byte (mb, CEE_RET);
11053
11054 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11055 mono_mb_free (mb);
11056
11057 return res;
11058 }
11059
11060 /*
11061 * mono_marshal_free_dynamic_wrappers:
11062 *
11063 * Free wrappers of the dynamic method METHOD.
11064 */
11065 void
11066 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11067 {
11068 g_assert (method->dynamic);
11069
11070 mono_marshal_lock ();
11071 /*
11072 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11073 * they could be shared with other methods ?
11074 */
11075 if (method->klass->image->runtime_invoke_direct_cache)
11076 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11077 mono_marshal_unlock ();
11078 }
11079
11080 /*
11081 * mono_marshal_free_inflated_wrappers:
11082 *
11083 * Free wrappers of the inflated method METHOD.
11084 */
11085
11086 static gboolean
11087 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11088 {
11089 SignatureMethodPair *pair = (SignatureMethodPair*)key;
11090 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11091
11092 return mono_metadata_signature_equal (pair->sig, sig);
11093 }
11094
11095 void
11096 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11097 {
11098 MonoMethodSignature *sig = method->signature;
11099
11100 g_assert (method->is_inflated);
11101
11102 /* Ignore calls occuring late during cleanup. */
11103 if (!marshal_mutex_initialized)
11104 return;
11105
11106 mono_marshal_lock ();
11107 /*
11108 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11109 * they could be shared with other methods ?
11110 */
11111
11112 /*
11113 * indexed by MonoMethodSignature
11114 */
11115 /* FIXME: This could remove unrelated wrappers as well */
11116 if (sig && method->klass->image->delegate_begin_invoke_cache)
11117 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11118 if (sig && method->klass->image->delegate_end_invoke_cache)
11119 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11120 if (sig && method->klass->image->delegate_invoke_cache)
11121 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11122 if (sig && method->klass->image->runtime_invoke_cache)
11123 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11124
11125 /*
11126 * indexed by SignatureMethodPair
11127 */
11128 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11129 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11130 signature_method_pair_matches_signature, (gpointer)sig);
11131
11132 /*
11133 * indexed by MonoMethod pointers
11134 */
11135 if (method->klass->image->runtime_invoke_direct_cache)
11136 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11137 if (method->klass->image->managed_wrapper_cache)
11138 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11139 if (method->klass->image->native_wrapper_cache)
11140 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11141 if (method->klass->image->remoting_invoke_cache)
11142 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11143 if (method->klass->image->synchronized_cache)
11144 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11145 if (method->klass->image->unbox_wrapper_cache)
11146 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11147 if (method->klass->image->cominterop_invoke_cache)
11148 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11149 if (method->klass->image->cominterop_wrapper_cache)
11150 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11151 if (method->klass->image->thunk_invoke_cache)
11152 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11153
11154 mono_marshal_unlock ();
11155 }
ppc64 and Haiku ports