2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
21 #include "metadata/marshal.h"
22 #include "metadata/method-builder.h"
23 #include "metadata/tabledefs.h"
24 #include "metadata/exception.h"
25 #include "metadata/appdomain.h"
26 #include "mono/metadata/abi-details.h"
27 #include "mono/metadata/debug-helpers.h"
28 #include "mono/metadata/threads.h"
29 #include "mono/metadata/monitor.h"
30 #include "mono/metadata/class-internals.h"
31 #include "mono/metadata/metadata-internals.h"
32 #include "mono/metadata/domain-internals.h"
33 #include "mono/metadata/gc-internals.h"
34 #include "mono/metadata/threads-types.h"
35 #include "mono/metadata/string-icalls.h"
36 #include "mono/metadata/attrdefs.h"
37 #include "mono/metadata/gc-internals.h"
38 #include "mono/metadata/cominterop.h"
39 #include "mono/metadata/remoting.h"
40 #include "mono/metadata/reflection-internals.h"
41 #include "mono/metadata/threadpool-ms.h"
42 #include "mono/utils/mono-counters.h"
43 #include "mono/utils/mono-tls.h"
44 #include "mono/utils/mono-memory-model.h"
45 #include "mono/utils/atomic.h"
46 #include <mono/utils/mono-threads.h>
51 /* #define DEBUG_RUNTIME_CODE */
53 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
57 #include "mono/cil/opcode.def"
63 * This mutex protects the various marshalling related caches in MonoImage
64 * and a few other data structures static to this file.
66 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
67 * runtime locking latice. Which means it can take simple locks suck as the image lock.
69 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
70 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
71 static mono_mutex_t marshal_mutex;
72 static gboolean marshal_mutex_initialized;
74 static MonoNativeTlsKey last_error_tls_id;
76 static MonoNativeTlsKey load_type_info_tls_id;
78 static gboolean use_aot_wrappers;
81 delegate_hash_table_add (MonoDelegate *d);
84 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
87 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
90 mono_struct_delete_old (MonoClass *klass, char *ptr);
93 mono_marshal_string_to_utf16 (MonoString *s);
96 mono_marshal_string_to_utf16_copy (MonoString *s);
99 mono_string_to_lpstr (MonoString *string_obj);
101 static MonoStringBuilder *
102 mono_string_utf8_to_builder2 (char *text);
104 static MonoStringBuilder *
105 mono_string_utf16_to_builder2 (gunichar2 *text);
108 mono_string_new_len_wrapper (const char *text, guint length);
111 mono_string_from_byvalstr (const char *data, int len);
114 mono_string_from_byvalwstr (gunichar2 *data, int len);
117 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
120 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
123 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
126 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
128 static MonoAsyncResult *
129 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
132 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
135 mono_marshal_set_last_error_windows (int error);
138 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
140 static void init_safe_handle (void);
142 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
143 static MonoMethod *sh_dangerous_add_ref;
144 static MonoMethod *sh_dangerous_release;
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);
157 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
159 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
161 mono_register_jit_icall (func, name, sig, save);
165 mono_signature_no_pinvoke (MonoMethod *method)
167 MonoMethodSignature *sig = mono_method_signature (method);
169 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
170 sig->pinvoke = FALSE;
177 mono_marshal_init_tls (void)
179 mono_native_tls_alloc (&last_error_tls_id, NULL);
180 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
184 mono_marshal_init (void)
186 static gboolean module_initialized = FALSE;
188 if (!module_initialized) {
189 module_initialized = TRUE;
190 mono_os_mutex_init_recursive (&marshal_mutex);
191 marshal_mutex_initialized = TRUE;
193 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
194 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
195 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
196 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
197 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
198 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
199 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
200 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
201 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
202 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
203 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
204 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
205 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
206 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
207 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
208 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
209 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
210 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
211 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
212 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
213 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
214 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
215 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
216 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
217 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
218 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
219 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
220 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
221 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
222 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
223 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
224 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
225 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
226 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
227 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
228 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
229 register_icall (g_free, "g_free", "void ptr", FALSE);
230 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
231 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
232 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
233 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
234 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
235 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
236 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
237 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
238 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
239 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
241 mono_cominterop_init ();
242 mono_remoting_init ();
244 if (mono_threads_is_coop_enabled ()) {
245 register_icall (mono_threads_prepare_blocking, "mono_threads_prepare_blocking", "ptr ptr", FALSE);
246 register_icall (mono_threads_finish_blocking, "mono_threads_finish_blocking", "void ptr ptr", FALSE);
247 register_icall (mono_threads_reset_blocking_start, "mono_threads_reset_blocking_start","ptr ptr", TRUE);
248 register_icall (mono_threads_reset_blocking_end, "mono_threads_reset_blocking_end","void ptr ptr", TRUE);
254 mono_marshal_cleanup (void)
256 mono_cominterop_cleanup ();
258 mono_native_tls_free (load_type_info_tls_id);
259 mono_native_tls_free (last_error_tls_id);
260 mono_os_mutex_destroy (&marshal_mutex);
261 marshal_mutex_initialized = FALSE;
265 mono_marshal_lock_internal (void)
267 mono_marshal_lock ();
271 mono_marshal_unlock_internal (void)
273 mono_marshal_unlock ();
277 mono_delegate_to_ftnptr (MonoDelegate *delegate)
279 MonoMethod *method, *wrapper;
281 uint32_t target_handle = 0;
286 if (delegate->delegate_trampoline)
287 return delegate->delegate_trampoline;
289 klass = ((MonoObject *)delegate)->vtable->klass;
290 g_assert (klass->delegate);
292 method = delegate->method;
293 if (delegate->method_is_virtual)
294 method = mono_object_get_virtual_method (delegate->target, method);
296 if (mono_method_signature (method)->pinvoke) {
297 const char *exc_class, *exc_arg;
300 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
302 g_assert (exc_class);
303 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
308 if (delegate->target) {
309 /* Produce a location which can be embedded in JITted code */
310 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
313 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
315 delegate->delegate_trampoline = mono_compile_method (wrapper);
317 // Add the delegate to the delegate hash table
318 delegate_hash_table_add (delegate);
320 /* when the object is collected, collect the dynamic method, too */
321 mono_object_register_finalizer ((MonoObject*)delegate);
323 return delegate->delegate_trampoline;
327 * this hash table maps from a delegate trampoline object to a weak reference
328 * of the delegate. As an optimizations with a non-moving GC we store the
329 * object pointer itself, otherwise we use a GC handle.
331 static GHashTable *delegate_hash_table;
334 delegate_hash_table_new (void) {
335 return g_hash_table_new (NULL, NULL);
339 delegate_hash_table_remove (MonoDelegate *d)
341 guint32 gchandle = 0;
343 mono_marshal_lock ();
344 if (delegate_hash_table == NULL)
345 delegate_hash_table = delegate_hash_table_new ();
346 if (mono_gc_is_moving ())
347 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
348 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
349 mono_marshal_unlock ();
350 if (gchandle && mono_gc_is_moving ())
351 mono_gchandle_free (gchandle);
355 delegate_hash_table_add (MonoDelegate *d)
358 guint32 old_gchandle;
360 mono_marshal_lock ();
361 if (delegate_hash_table == NULL)
362 delegate_hash_table = delegate_hash_table_new ();
363 if (mono_gc_is_moving ()) {
364 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
365 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
366 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
368 mono_gchandle_free (old_gchandle);
370 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
372 mono_marshal_unlock ();
376 * mono_marshal_use_aot_wrappers:
378 * Instructs this module to use AOT compatible wrappers.
381 mono_marshal_use_aot_wrappers (gboolean use)
383 use_aot_wrappers = use;
387 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
389 static MonoClass *UnmanagedFunctionPointerAttribute;
390 MonoCustomAttrInfo *cinfo;
391 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
393 if (!UnmanagedFunctionPointerAttribute)
394 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
396 /* The attribute is only available in Net 2.0 */
397 if (UnmanagedFunctionPointerAttribute) {
399 * The pinvoke attributes are stored in a real custom attribute so we have to
402 cinfo = mono_custom_attrs_from_class (klass);
403 if (cinfo && !mono_runtime_get_no_exec ()) {
405 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, UnmanagedFunctionPointerAttribute, &error);
407 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
409 if (!mono_error_ok (&error)) {
410 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
411 mono_error_cleanup (&error);
415 mono_custom_attrs_free (cinfo);
421 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
429 mono_marshal_lock ();
430 if (delegate_hash_table == NULL)
431 delegate_hash_table = delegate_hash_table_new ();
433 if (mono_gc_is_moving ()) {
434 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
435 mono_marshal_unlock ();
437 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
441 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
442 mono_marshal_unlock ();
445 /* This is a native function, so construct a delegate for it */
446 MonoMethodSignature *sig;
448 MonoMarshalSpec **mspecs;
449 MonoMethod *invoke = mono_get_delegate_invoke (klass);
450 MonoMethodPInvoke piinfo;
451 MonoObject *this_obj;
454 if (use_aot_wrappers) {
455 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
456 this_obj = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
458 memset (&piinfo, 0, sizeof (piinfo));
459 parse_unmanaged_function_pointer_attr (klass, &piinfo);
461 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
462 mono_method_get_marshal_info (invoke, mspecs);
463 /* Freed below so don't alloc from mempool */
464 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
467 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
470 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
472 mono_metadata_free_marshal_spec (mspecs [i]);
477 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
478 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, mono_compile_method (wrapper), wrapper);
481 if (d->object.vtable->domain != mono_domain_get ())
482 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
488 mono_delegate_free_ftnptr (MonoDelegate *delegate)
493 delegate_hash_table_remove (delegate);
495 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
497 if (!delegate->target) {
498 /* The wrapper method is shared between delegates -> no need to free it */
507 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
510 method = mono_jit_info_get_method (ji);
511 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
513 /*the target gchandle is the first entry after size and the wrapper itself.*/
514 gchandle = GPOINTER_TO_UINT (method_data [2]);
517 mono_gchandle_free (gchandle);
519 mono_runtime_free_method (mono_object_domain (delegate), method);
524 mono_string_from_byvalstr (const char *data, int max_len)
526 MonoDomain *domain = mono_domain_get ();
532 while (len < max_len - 1 && data [len])
535 return mono_string_new_len (domain, data, len);
539 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
541 MonoDomain *domain = mono_domain_get ();
547 while (data [len]) len++;
549 return mono_string_new_utf16 (domain, data, MIN (len, max_len));
553 mono_array_to_savearray (MonoArray *array)
558 g_assert_not_reached ();
563 mono_array_to_lparray (MonoArray *array)
566 gpointer *nativeArray = NULL;
567 int nativeArraySize = 0;
577 klass = array->obj.vtable->klass;
579 switch (klass->element_class->byval_arg.type) {
581 g_assert_not_reached ();
583 case MONO_TYPE_CLASS:
584 nativeArraySize = array->max_length;
585 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
586 for(i = 0; i < nativeArraySize; ++i)
587 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
590 case MONO_TYPE_BOOLEAN:
603 case MONO_TYPE_VALUETYPE:
607 case MONO_TYPE_GENERICINST:
608 case MONO_TYPE_OBJECT:
609 case MONO_TYPE_ARRAY:
610 case MONO_TYPE_SZARRAY:
611 case MONO_TYPE_STRING:
613 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
614 g_assert_not_reached ();
617 return array->vector;
621 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
632 klass = array->obj.vtable->klass;
634 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
635 for(i = 0; i < array->max_length; ++i)
636 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
643 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
645 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
647 if (elclass == mono_defaults.byte_class) {
648 GError *error = NULL;
652 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
655 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
659 g_error_free (error);
662 g_assert_not_reached ();
666 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
668 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
672 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
674 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
676 if (elclass == mono_defaults.byte_class) {
678 GError *error = NULL;
680 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
682 MonoException *exc = mono_get_exception_argument ("string", error->message);
683 g_error_free (error);
684 mono_raise_exception (exc);
687 memcpy (native_arr, as, MIN (strlen (as), elnum));
690 g_assert_not_reached ();
695 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
697 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
700 static MonoStringBuilder *
701 mono_string_builder_new (int starting_string_length)
703 static MonoClass *string_builder_class;
704 static MonoMethod *sb_ctor;
705 static void *args [1];
706 int initial_len = starting_string_length;
712 MonoMethodDesc *desc;
715 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
716 g_assert (string_builder_class);
717 desc = mono_method_desc_new (":.ctor(int)", FALSE);
718 m = mono_method_desc_search_in_class (desc, string_builder_class);
720 mono_method_desc_free (desc);
721 mono_memory_barrier ();
725 // We make a new array in the _to_builder function, so this
726 // array will always be garbage collected.
727 args [0] = &initial_len;
729 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
733 mono_runtime_invoke (sb_ctor, sb, args, &exc);
736 g_assert (sb->chunkChars->max_length >= initial_len);
742 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
744 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
745 gunichar2 *charSrc = (gunichar2 *)text;
746 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
748 sb->chunkLength = string_len;
754 mono_string_utf16_to_builder2 (gunichar2 *text)
760 for (len = 0; text [len] != 0; ++len);
762 MonoStringBuilder *sb = mono_string_builder_new (len);
763 mono_string_utf16_to_builder (sb, text);
769 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
774 int len = strlen (text);
775 if (len > mono_string_builder_capacity (sb))
776 len = mono_string_builder_capacity (sb);
778 GError *error = NULL;
780 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
783 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
784 mono_string_utf16_to_builder_copy (sb, ut, copied);
786 g_error_free (error);
792 mono_string_utf8_to_builder2 (char *text)
797 int len = strlen (text);
798 MonoStringBuilder *sb = mono_string_builder_new (len);
799 mono_string_utf8_to_builder (sb, text);
806 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
812 for (len = 0; text [len] != 0; ++len);
814 if (len > mono_string_builder_capacity (sb))
815 len = mono_string_builder_capacity (sb);
817 mono_string_utf16_to_builder_copy (sb, text, len);
821 * mono_string_builder_to_utf8:
822 * @sb: the string builder
824 * Converts to utf8 the contents of the MonoStringBuilder.
826 * Returns: a utf8 string with the contents of the StringBuilder.
828 * The return value must be released with g_free.
831 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
833 GError *error = NULL;
839 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
841 guint str_len = mono_string_builder_string_length (sb);
843 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &error);
846 g_error_free (error);
848 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
851 guint len = mono_string_builder_capacity (sb) + 1;
852 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar));
853 g_assert (str_len < len);
854 memcpy (res, tmp, str_len * sizeof (gchar));
865 * mono_string_builder_to_utf16:
866 * @sb: the string builder
868 * Converts to utf16 the contents of the MonoStringBuilder.
870 * Returns: a utf16 string with the contents of the StringBuilder.
872 * The return value must not be freed.
875 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
880 g_assert (sb->chunkChars);
882 guint len = mono_string_builder_capacity (sb);
887 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2));
893 MonoStringBuilder* chunk = sb;
895 if (chunk->chunkLength > 0) {
896 // Check that we will not overrun our boundaries.
897 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
899 if (chunk->chunkLength <= len) {
900 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
902 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
905 len -= chunk->chunkLength;
907 chunk = chunk->chunkPrevious;
908 } while (chunk != NULL);
914 mono_string_to_lpstr (MonoString *s)
919 GError *error = NULL;
925 as = CoTaskMemAlloc (1);
930 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
932 MonoException *exc = mono_get_exception_argument ("string", error->message);
933 g_error_free (error);
934 mono_raise_exception(exc);
937 as = CoTaskMemAlloc (len + 1);
938 memcpy (as, tmp, len + 1);
943 return mono_string_to_utf8 (s);
948 mono_string_to_ansibstr (MonoString *string_obj)
950 g_error ("UnmanagedMarshal.BStr is not implemented.");
955 * mono_string_to_byvalstr:
956 * @dst: Where to store the null-terminated utf8 decoded string.
957 * @src: the MonoString to copy.
958 * @size: the maximum number of bytes to copy.
960 * Copies the MonoString pointed to by @src as a utf8 string
961 * into @dst, it copies at most @size bytes into the destination.
964 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
969 g_assert (dst != NULL);
972 memset (dst, 0, size);
976 s = mono_string_to_utf8 (src);
977 len = MIN (size, strlen (s));
980 memcpy (dst, s, len);
985 * mono_string_to_byvalwstr:
986 * @dst: Where to store the null-terminated utf16 decoded string.
987 * @src: the MonoString to copy.
988 * @size: the maximum number of bytes to copy.
990 * Copies the MonoString pointed to by @src as a utf16 string into
991 * @dst, it copies at most @size bytes into the destination (including
992 * a terminating 16-bit zero terminator).
995 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
999 g_assert (dst != NULL);
1000 g_assert (size > 1);
1003 memset (dst, 0, size * 2);
1007 len = MIN (size, (mono_string_length (src)));
1008 memcpy (dst, mono_string_chars (src), size * 2);
1009 if (size <= mono_string_length (src))
1011 *((gunichar2 *) dst + len) = 0;
1015 mono_string_new_len_wrapper (const char *text, guint length)
1017 return mono_string_new_len (mono_domain_get (), text, length);
1023 * mono_mb_emit_exception_marshal_directive:
1025 * This function assumes ownership of MSG, which should be malloc-ed.
1028 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1033 s = mono_image_strdup (mb->method->klass->image, msg);
1038 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1041 #endif /* !DISABLE_JIT */
1044 mono_type_to_ldind (MonoType *type)
1050 switch (type->type) {
1052 return CEE_LDIND_I1;
1054 case MONO_TYPE_BOOLEAN:
1055 return CEE_LDIND_U1;
1057 return CEE_LDIND_I2;
1059 case MONO_TYPE_CHAR:
1060 return CEE_LDIND_U2;
1062 return CEE_LDIND_I4;
1064 return CEE_LDIND_U4;
1068 case MONO_TYPE_FNPTR:
1070 case MONO_TYPE_CLASS:
1071 case MONO_TYPE_STRING:
1072 case MONO_TYPE_OBJECT:
1073 case MONO_TYPE_SZARRAY:
1074 case MONO_TYPE_ARRAY:
1075 return CEE_LDIND_REF;
1078 return CEE_LDIND_I8;
1080 return CEE_LDIND_R4;
1082 return CEE_LDIND_R8;
1083 case MONO_TYPE_VALUETYPE:
1084 if (type->data.klass->enumtype) {
1085 type = mono_class_enum_basetype (type->data.klass);
1089 case MONO_TYPE_TYPEDBYREF:
1091 case MONO_TYPE_GENERICINST:
1092 type = &type->data.generic_class->container_class->byval_arg;
1095 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1101 mono_type_to_stind (MonoType *type)
1107 switch (type->type) {
1110 case MONO_TYPE_BOOLEAN:
1111 return CEE_STIND_I1;
1114 case MONO_TYPE_CHAR:
1115 return CEE_STIND_I2;
1118 return CEE_STIND_I4;
1122 case MONO_TYPE_FNPTR:
1124 case MONO_TYPE_CLASS:
1125 case MONO_TYPE_STRING:
1126 case MONO_TYPE_OBJECT:
1127 case MONO_TYPE_SZARRAY:
1128 case MONO_TYPE_ARRAY:
1129 return CEE_STIND_REF;
1132 return CEE_STIND_I8;
1134 return CEE_STIND_R4;
1136 return CEE_STIND_R8;
1137 case MONO_TYPE_VALUETYPE:
1138 if (type->data.klass->enumtype) {
1139 type = mono_class_enum_basetype (type->data.klass);
1143 case MONO_TYPE_TYPEDBYREF:
1145 case MONO_TYPE_GENERICINST:
1146 type = &type->data.generic_class->container_class->byval_arg;
1149 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1157 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1160 case MONO_MARSHAL_CONV_BOOL_I4:
1161 mono_mb_emit_ldloc (mb, 1);
1162 mono_mb_emit_ldloc (mb, 0);
1163 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1164 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1165 mono_mb_emit_byte (mb, 3);
1166 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1167 mono_mb_emit_byte (mb, CEE_BR_S);
1168 mono_mb_emit_byte (mb, 1);
1169 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1170 mono_mb_emit_byte (mb, CEE_STIND_I1);
1172 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1173 mono_mb_emit_ldloc (mb, 1);
1174 mono_mb_emit_ldloc (mb, 0);
1175 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1176 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1177 mono_mb_emit_byte (mb, 3);
1178 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1179 mono_mb_emit_byte (mb, CEE_BR_S);
1180 mono_mb_emit_byte (mb, 1);
1181 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1182 mono_mb_emit_byte (mb, CEE_STIND_I1);
1184 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1185 MonoClass *eklass = NULL;
1188 if (type->type == MONO_TYPE_SZARRAY) {
1189 eklass = type->data.klass;
1191 g_assert_not_reached ();
1194 esize = mono_class_native_size (eklass, NULL);
1196 /* create a new array */
1197 mono_mb_emit_ldloc (mb, 1);
1198 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1199 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1200 mono_mb_emit_byte (mb, CEE_STIND_I);
1202 if (eklass->blittable) {
1203 /* copy the elements */
1204 mono_mb_emit_ldloc (mb, 1);
1205 mono_mb_emit_byte (mb, CEE_LDIND_I);
1206 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1207 mono_mb_emit_byte (mb, CEE_ADD);
1208 mono_mb_emit_ldloc (mb, 0);
1209 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1210 mono_mb_emit_byte (mb, CEE_PREFIX1);
1211 mono_mb_emit_byte (mb, CEE_CPBLK);
1214 int array_var, src_var, dst_var, index_var;
1215 guint32 label2, label3;
1217 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1218 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1219 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1222 mono_mb_emit_ldloc (mb, 1);
1223 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1224 mono_mb_emit_stloc (mb, array_var);
1226 /* save the old src pointer */
1227 mono_mb_emit_ldloc (mb, 0);
1228 mono_mb_emit_stloc (mb, src_var);
1229 /* save the old dst pointer */
1230 mono_mb_emit_ldloc (mb, 1);
1231 mono_mb_emit_stloc (mb, dst_var);
1233 /* Emit marshalling loop */
1234 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1235 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1236 mono_mb_emit_stloc (mb, index_var);
1239 label2 = mono_mb_get_label (mb);
1240 mono_mb_emit_ldloc (mb, index_var);
1241 mono_mb_emit_ldloc (mb, array_var);
1242 mono_mb_emit_byte (mb, CEE_LDLEN);
1243 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1245 /* src is already set */
1248 mono_mb_emit_ldloc (mb, array_var);
1249 mono_mb_emit_ldloc (mb, index_var);
1250 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1251 mono_mb_emit_stloc (mb, 1);
1253 /* Do the conversion */
1254 emit_struct_conv (mb, eklass, TRUE);
1257 mono_mb_emit_add_to_local (mb, index_var, 1);
1259 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1261 mono_mb_patch_branch (mb, label3);
1263 /* restore the old src pointer */
1264 mono_mb_emit_ldloc (mb, src_var);
1265 mono_mb_emit_stloc (mb, 0);
1266 /* restore the old dst pointer */
1267 mono_mb_emit_ldloc (mb, dst_var);
1268 mono_mb_emit_stloc (mb, 1);
1272 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1273 MonoClass *eclass = mono_defaults.char_class;
1275 /* create a new array */
1276 mono_mb_emit_ldloc (mb, 1);
1277 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1278 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1279 mono_mb_emit_byte (mb, CEE_STIND_REF);
1281 mono_mb_emit_ldloc (mb, 1);
1282 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1283 mono_mb_emit_ldloc (mb, 0);
1284 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1285 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1288 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1289 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1290 mono_mb_emit_ldloc (mb, 1);
1291 mono_mb_emit_ldloc (mb, 0);
1292 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1293 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1295 mono_mb_emit_ldloc (mb, 1);
1296 mono_mb_emit_ldloc (mb, 0);
1297 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1299 mono_mb_emit_byte (mb, CEE_STIND_REF);
1301 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1302 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1303 mono_mb_emit_ldloc (mb, 1);
1304 mono_mb_emit_ldloc (mb, 0);
1305 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1306 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1308 mono_mb_emit_ldloc (mb, 1);
1309 mono_mb_emit_ldloc (mb, 0);
1310 mono_mb_emit_icall (mb, mono_string_from_utf16);
1312 mono_mb_emit_byte (mb, CEE_STIND_REF);
1314 case MONO_MARSHAL_CONV_STR_LPTSTR:
1315 mono_mb_emit_ldloc (mb, 1);
1316 mono_mb_emit_ldloc (mb, 0);
1317 mono_mb_emit_byte (mb, CEE_LDIND_I);
1319 mono_mb_emit_icall (mb, mono_string_from_utf16);
1321 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1323 mono_mb_emit_byte (mb, CEE_STIND_REF);
1325 case MONO_MARSHAL_CONV_STR_LPSTR:
1326 mono_mb_emit_ldloc (mb, 1);
1327 mono_mb_emit_ldloc (mb, 0);
1328 mono_mb_emit_byte (mb, CEE_LDIND_I);
1329 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1330 mono_mb_emit_byte (mb, CEE_STIND_REF);
1332 case MONO_MARSHAL_CONV_STR_LPWSTR:
1333 mono_mb_emit_ldloc (mb, 1);
1334 mono_mb_emit_ldloc (mb, 0);
1335 mono_mb_emit_byte (mb, CEE_LDIND_I);
1336 mono_mb_emit_icall (mb, mono_string_from_utf16);
1337 mono_mb_emit_byte (mb, CEE_STIND_REF);
1339 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1340 MonoClass *klass = mono_class_from_mono_type (type);
1341 int src_var, dst_var;
1343 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1344 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1346 /* *dst = new object */
1347 mono_mb_emit_ldloc (mb, 1);
1348 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1349 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1350 mono_mb_emit_byte (mb, CEE_STIND_REF);
1352 /* save the old src pointer */
1353 mono_mb_emit_ldloc (mb, 0);
1354 mono_mb_emit_stloc (mb, src_var);
1355 /* save the old dst pointer */
1356 mono_mb_emit_ldloc (mb, 1);
1357 mono_mb_emit_stloc (mb, dst_var);
1359 /* dst = pointer to newly created object data */
1360 mono_mb_emit_ldloc (mb, 1);
1361 mono_mb_emit_byte (mb, CEE_LDIND_I);
1362 mono_mb_emit_icon (mb, sizeof (MonoObject));
1363 mono_mb_emit_byte (mb, CEE_ADD);
1364 mono_mb_emit_stloc (mb, 1);
1366 emit_struct_conv (mb, klass, TRUE);
1368 /* restore the old src pointer */
1369 mono_mb_emit_ldloc (mb, src_var);
1370 mono_mb_emit_stloc (mb, 0);
1371 /* restore the old dst pointer */
1372 mono_mb_emit_ldloc (mb, dst_var);
1373 mono_mb_emit_stloc (mb, 1);
1376 case MONO_MARSHAL_CONV_DEL_FTN: {
1377 MonoClass *klass = mono_class_from_mono_type (type);
1379 mono_mb_emit_ldloc (mb, 1);
1380 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1381 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1382 mono_mb_emit_ldloc (mb, 0);
1383 mono_mb_emit_byte (mb, CEE_LDIND_I);
1384 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1385 mono_mb_emit_byte (mb, CEE_STIND_REF);
1388 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1389 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1393 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1394 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1395 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1396 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1398 #endif /* DISABLE_COM */
1400 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1402 * Passing SafeHandles as ref does not allow the unmanaged code
1403 * to change the SafeHandle value. If the value is changed,
1404 * we should issue a diagnostic exception (NotSupportedException)
1405 * that informs the user that changes to handles in unmanaged code
1408 * Since we currently have no access to the original
1409 * SafeHandle that was used during the marshalling,
1410 * for now we just ignore this, and ignore/discard any
1411 * changes that might have happened to the handle.
1416 case MONO_MARSHAL_CONV_HANDLEREF: {
1418 * Passing HandleRefs in a struct that is ref()ed does not
1419 * copy the values back to the HandleRef
1424 case MONO_MARSHAL_CONV_STR_BSTR:
1425 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1426 case MONO_MARSHAL_CONV_STR_TBSTR:
1427 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1429 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1431 mono_mb_emit_exception_marshal_directive (mb, msg);
1438 conv_to_icall (MonoMarshalConv conv)
1441 case MONO_MARSHAL_CONV_STR_LPWSTR:
1442 return mono_marshal_string_to_utf16;
1443 case MONO_MARSHAL_CONV_LPWSTR_STR:
1444 return mono_string_from_utf16;
1445 case MONO_MARSHAL_CONV_LPTSTR_STR:
1446 return mono_string_new_wrapper;
1447 case MONO_MARSHAL_CONV_LPSTR_STR:
1448 return mono_string_new_wrapper;
1449 case MONO_MARSHAL_CONV_STR_LPTSTR:
1451 return mono_marshal_string_to_utf16;
1453 return mono_string_to_lpstr;
1455 case MONO_MARSHAL_CONV_STR_LPSTR:
1456 return mono_string_to_lpstr;
1457 case MONO_MARSHAL_CONV_STR_BSTR:
1458 return mono_string_to_bstr;
1459 case MONO_MARSHAL_CONV_BSTR_STR:
1460 return mono_string_from_bstr;
1461 case MONO_MARSHAL_CONV_STR_TBSTR:
1462 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1463 return mono_string_to_ansibstr;
1464 case MONO_MARSHAL_CONV_SB_LPSTR:
1465 return mono_string_builder_to_utf8;
1466 case MONO_MARSHAL_CONV_SB_LPTSTR:
1468 return mono_string_builder_to_utf16;
1470 return mono_string_builder_to_utf8;
1472 case MONO_MARSHAL_CONV_SB_LPWSTR:
1473 return mono_string_builder_to_utf16;
1474 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1475 return mono_array_to_savearray;
1476 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1477 return mono_array_to_lparray;
1478 case MONO_MARSHAL_FREE_LPARRAY:
1479 return mono_free_lparray;
1480 case MONO_MARSHAL_CONV_DEL_FTN:
1481 return mono_delegate_to_ftnptr;
1482 case MONO_MARSHAL_CONV_FTN_DEL:
1483 return mono_ftnptr_to_delegate;
1484 case MONO_MARSHAL_CONV_LPSTR_SB:
1485 return mono_string_utf8_to_builder;
1486 case MONO_MARSHAL_CONV_LPTSTR_SB:
1488 return mono_string_utf16_to_builder;
1490 return mono_string_utf8_to_builder;
1492 case MONO_MARSHAL_CONV_LPWSTR_SB:
1493 return mono_string_utf16_to_builder;
1494 case MONO_MARSHAL_FREE_ARRAY:
1495 return mono_marshal_free_array;
1496 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1497 return mono_string_to_byvalstr;
1498 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1499 return mono_string_to_byvalwstr;
1501 g_assert_not_reached ();
1508 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1513 case MONO_MARSHAL_CONV_BOOL_I4:
1514 mono_mb_emit_ldloc (mb, 1);
1515 mono_mb_emit_ldloc (mb, 0);
1516 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1517 mono_mb_emit_byte (mb, CEE_STIND_I4);
1519 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1520 mono_mb_emit_ldloc (mb, 1);
1521 mono_mb_emit_ldloc (mb, 0);
1522 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1523 mono_mb_emit_byte (mb, CEE_NEG);
1524 mono_mb_emit_byte (mb, CEE_STIND_I2);
1526 case MONO_MARSHAL_CONV_STR_LPWSTR:
1527 case MONO_MARSHAL_CONV_STR_LPSTR:
1528 case MONO_MARSHAL_CONV_STR_LPTSTR:
1529 case MONO_MARSHAL_CONV_STR_BSTR:
1530 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1531 case MONO_MARSHAL_CONV_STR_TBSTR: {
1534 /* free space if free == true */
1535 mono_mb_emit_ldloc (mb, 2);
1536 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1537 mono_mb_emit_ldloc (mb, 1);
1538 mono_mb_emit_byte (mb, CEE_LDIND_I);
1539 mono_mb_emit_icall (mb, g_free);
1540 mono_mb_patch_short_branch (mb, pos);
1542 mono_mb_emit_ldloc (mb, 1);
1543 mono_mb_emit_ldloc (mb, 0);
1544 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1545 mono_mb_emit_icall (mb, conv_to_icall (conv));
1546 mono_mb_emit_byte (mb, CEE_STIND_I);
1549 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1550 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1551 case MONO_MARSHAL_CONV_DEL_FTN:
1552 mono_mb_emit_ldloc (mb, 1);
1553 mono_mb_emit_ldloc (mb, 0);
1554 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1555 mono_mb_emit_icall (mb, conv_to_icall (conv));
1556 mono_mb_emit_byte (mb, CEE_STIND_I);
1558 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1559 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1562 mono_mb_emit_ldloc (mb, 1); /* dst */
1563 mono_mb_emit_ldloc (mb, 0);
1564 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1565 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1566 mono_mb_emit_icall (mb, conv_to_icall (conv));
1569 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1570 MonoClass *eklass = NULL;
1573 if (type->type == MONO_TYPE_SZARRAY) {
1574 eklass = type->data.klass;
1576 g_assert_not_reached ();
1579 if (eklass->valuetype)
1580 esize = mono_class_native_size (eklass, NULL);
1582 esize = sizeof (gpointer);
1584 mono_mb_emit_ldloc (mb, 0);
1585 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1586 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1588 if (eklass->blittable) {
1589 mono_mb_emit_ldloc (mb, 1);
1590 mono_mb_emit_ldloc (mb, 0);
1591 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1592 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1593 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1594 mono_mb_emit_byte (mb, CEE_PREFIX1);
1595 mono_mb_emit_byte (mb, CEE_CPBLK);
1597 int array_var, src_var, dst_var, index_var;
1598 guint32 label2, label3;
1600 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1601 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1602 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1605 mono_mb_emit_ldloc (mb, 0);
1606 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1607 mono_mb_emit_stloc (mb, array_var);
1609 /* save the old src pointer */
1610 mono_mb_emit_ldloc (mb, 0);
1611 mono_mb_emit_stloc (mb, src_var);
1612 /* save the old dst pointer */
1613 mono_mb_emit_ldloc (mb, 1);
1614 mono_mb_emit_stloc (mb, dst_var);
1616 /* Emit marshalling loop */
1617 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1618 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1619 mono_mb_emit_stloc (mb, index_var);
1622 label2 = mono_mb_get_label (mb);
1623 mono_mb_emit_ldloc (mb, index_var);
1624 mono_mb_emit_ldloc (mb, array_var);
1625 mono_mb_emit_byte (mb, CEE_LDLEN);
1626 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1629 mono_mb_emit_ldloc (mb, array_var);
1630 mono_mb_emit_ldloc (mb, index_var);
1631 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1632 mono_mb_emit_stloc (mb, 0);
1634 /* dst is already set */
1636 /* Do the conversion */
1637 emit_struct_conv (mb, eklass, FALSE);
1640 mono_mb_emit_add_to_local (mb, index_var, 1);
1642 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1644 mono_mb_patch_branch (mb, label3);
1646 /* restore the old src pointer */
1647 mono_mb_emit_ldloc (mb, src_var);
1648 mono_mb_emit_stloc (mb, 0);
1649 /* restore the old dst pointer */
1650 mono_mb_emit_ldloc (mb, dst_var);
1651 mono_mb_emit_stloc (mb, 1);
1654 mono_mb_patch_branch (mb, pos);
1657 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1658 mono_mb_emit_ldloc (mb, 0);
1659 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1660 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1662 mono_mb_emit_ldloc (mb, 1);
1663 mono_mb_emit_ldloc (mb, 0);
1664 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1665 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1666 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1667 mono_mb_patch_short_branch (mb, pos);
1670 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1671 int src_var, dst_var;
1673 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1674 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1676 mono_mb_emit_ldloc (mb, 0);
1677 mono_mb_emit_byte (mb, CEE_LDIND_I);
1678 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1680 /* save the old src pointer */
1681 mono_mb_emit_ldloc (mb, 0);
1682 mono_mb_emit_stloc (mb, src_var);
1683 /* save the old dst pointer */
1684 mono_mb_emit_ldloc (mb, 1);
1685 mono_mb_emit_stloc (mb, dst_var);
1687 /* src = pointer to object data */
1688 mono_mb_emit_ldloc (mb, 0);
1689 mono_mb_emit_byte (mb, CEE_LDIND_I);
1690 mono_mb_emit_icon (mb, sizeof (MonoObject));
1691 mono_mb_emit_byte (mb, CEE_ADD);
1692 mono_mb_emit_stloc (mb, 0);
1694 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1696 /* restore the old src pointer */
1697 mono_mb_emit_ldloc (mb, src_var);
1698 mono_mb_emit_stloc (mb, 0);
1699 /* restore the old dst pointer */
1700 mono_mb_emit_ldloc (mb, dst_var);
1701 mono_mb_emit_stloc (mb, 1);
1703 mono_mb_patch_branch (mb, pos);
1708 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1709 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1710 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1711 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1713 #endif /* DISABLE_COM */
1715 case MONO_MARSHAL_CONV_SAFEHANDLE: {
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);
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, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1729 mono_mb_emit_byte (mb, CEE_LDIND_I);
1730 mono_mb_emit_byte (mb, CEE_STIND_I);
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, MONO_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);
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);
1749 mono_raise_exception (exc);
1755 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1756 MonoMarshalNative string_encoding)
1758 MonoMarshalType *info;
1762 emit_struct_conv(mb, klass->parent, to_object);
1764 info = mono_marshal_load_type_info (klass);
1766 if (info->native_size == 0)
1769 if (klass->blittable) {
1770 int msize = mono_class_value_size (klass, NULL);
1771 g_assert (msize == info->native_size);
1772 mono_mb_emit_ldloc (mb, 1);
1773 mono_mb_emit_ldloc (mb, 0);
1774 mono_mb_emit_icon (mb, msize);
1775 mono_mb_emit_byte (mb, CEE_PREFIX1);
1776 mono_mb_emit_byte (mb, CEE_CPBLK);
1778 mono_mb_emit_add_to_local (mb, 0, msize);
1779 mono_mb_emit_add_to_local (mb, 1, msize);
1783 if (klass != mono_defaults.safehandle_class) {
1784 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1785 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1786 mono_type_full_name (&klass->byval_arg));
1787 mono_mb_emit_exception_marshal_directive (mb, msg);
1792 for (i = 0; i < info->num_fields; i++) {
1793 MonoMarshalNative ntype;
1794 MonoMarshalConv conv;
1795 MonoType *ftype = info->fields [i].field->type;
1798 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1800 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1803 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1806 msize = klass->instance_size - info->fields [i].field->offset;
1807 usize = info->native_size - info->fields [i].offset;
1809 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1810 usize = info->fields [i + 1].offset - info->fields [i].offset;
1813 if (klass != mono_defaults.safehandle_class){
1815 * FIXME: Should really check for usize==0 and msize>0, but we apply
1816 * the layout to the managed structure as well.
1819 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1820 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1821 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1822 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1823 "reference field at the same offset as another field.",
1824 mono_type_full_name (&klass->byval_arg));
1829 case MONO_MARSHAL_CONV_NONE: {
1832 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1833 ftype->type == MONO_TYPE_U) {
1834 mono_mb_emit_ldloc (mb, 1);
1835 mono_mb_emit_ldloc (mb, 0);
1836 mono_mb_emit_byte (mb, CEE_LDIND_I);
1837 mono_mb_emit_byte (mb, CEE_STIND_I);
1848 case MONO_TYPE_BOOLEAN:
1851 case MONO_TYPE_CHAR:
1857 mono_mb_emit_ldloc (mb, 1);
1858 mono_mb_emit_ldloc (mb, 0);
1859 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1861 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1862 mono_mb_emit_byte (mb, CEE_STIND_I2);
1864 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1865 mono_mb_emit_byte (mb, CEE_STIND_I1);
1868 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1869 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1872 case MONO_TYPE_VALUETYPE: {
1873 int src_var, dst_var;
1875 if (ftype->data.klass->enumtype) {
1876 ftype = mono_class_enum_basetype (ftype->data.klass);
1880 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1881 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1883 /* save the old src pointer */
1884 mono_mb_emit_ldloc (mb, 0);
1885 mono_mb_emit_stloc (mb, src_var);
1886 /* save the old dst pointer */
1887 mono_mb_emit_ldloc (mb, 1);
1888 mono_mb_emit_stloc (mb, dst_var);
1890 emit_struct_conv (mb, ftype->data.klass, to_object);
1892 /* restore the old src pointer */
1893 mono_mb_emit_ldloc (mb, src_var);
1894 mono_mb_emit_stloc (mb, 0);
1895 /* restore the old dst pointer */
1896 mono_mb_emit_ldloc (mb, dst_var);
1897 mono_mb_emit_stloc (mb, 1);
1900 case MONO_TYPE_OBJECT: {
1903 static MonoMethod *variant_clear = NULL;
1904 static MonoMethod *get_object_for_native_variant = NULL;
1907 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
1908 if (!get_object_for_native_variant)
1909 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1910 mono_mb_emit_ldloc (mb, 1);
1911 mono_mb_emit_ldloc (mb, 0);
1912 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1913 mono_mb_emit_byte (mb, CEE_STIND_REF);
1915 mono_mb_emit_ldloc (mb, 0);
1916 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1919 static MonoMethod *get_native_variant_for_object = NULL;
1921 if (!get_native_variant_for_object)
1922 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1924 mono_mb_emit_ldloc (mb, 0);
1925 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1926 mono_mb_emit_ldloc (mb, 1);
1927 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1930 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
1931 mono_mb_emit_exception_marshal_directive (mb, msg);
1937 g_warning ("marshaling type %02x not implemented", ftype->type);
1938 g_assert_not_reached ();
1943 int src_var, dst_var;
1945 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1946 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1948 /* save the old src pointer */
1949 mono_mb_emit_ldloc (mb, 0);
1950 mono_mb_emit_stloc (mb, src_var);
1951 /* save the old dst pointer */
1952 mono_mb_emit_ldloc (mb, 1);
1953 mono_mb_emit_stloc (mb, dst_var);
1956 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1958 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1960 /* restore the old src pointer */
1961 mono_mb_emit_ldloc (mb, src_var);
1962 mono_mb_emit_stloc (mb, 0);
1963 /* restore the old dst pointer */
1964 mono_mb_emit_ldloc (mb, dst_var);
1965 mono_mb_emit_stloc (mb, 1);
1970 mono_mb_emit_add_to_local (mb, 0, usize);
1971 mono_mb_emit_add_to_local (mb, 1, msize);
1973 mono_mb_emit_add_to_local (mb, 0, msize);
1974 mono_mb_emit_add_to_local (mb, 1, usize);
1980 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1982 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
1986 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1988 /* Call DestroyStructure */
1989 /* FIXME: Only do this if needed */
1990 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1991 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1992 mono_mb_emit_ldloc (mb, struct_var);
1993 mono_mb_emit_icall (mb, mono_struct_delete_old);
1997 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
1999 int pos_noabort, pos_noex;
2001 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2002 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2003 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2004 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2006 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2007 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2009 mono_mb_emit_icall (mb, checkpoint_func);
2010 /* Throw the exception returned by the checkpoint function, if any */
2011 mono_mb_emit_byte (mb, CEE_DUP);
2012 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2013 mono_mb_emit_byte (mb, CEE_THROW);
2014 mono_mb_patch_branch (mb, pos_noex);
2015 mono_mb_emit_byte (mb, CEE_POP);
2017 mono_mb_patch_branch (mb, pos_noabort);
2021 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2023 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2026 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2030 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2032 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2036 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2038 emit_thread_interrupt_checkpoint (mb);
2042 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2044 emit_thread_force_interrupt_checkpoint (mb);
2047 #endif /* DISABLE_JIT */
2049 static MonoAsyncResult *
2050 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2052 MonoMulticastDelegate *mcast_delegate;
2056 g_assert (delegate);
2057 mcast_delegate = (MonoMulticastDelegate *) delegate;
2058 if (mcast_delegate->delegates != NULL)
2059 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2061 #ifndef DISABLE_REMOTING
2062 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2064 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2065 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2067 /* If the target is a proxy, make a direct call. Is proxy's work
2068 // to make the call asynchronous.
2070 MonoMethodMessage *msg;
2071 MonoDelegate *async_callback;
2073 MonoAsyncResult *ares;
2075 MonoArray *out_args;
2076 method = delegate->method;
2078 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2079 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2080 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2081 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2082 MONO_OBJECT_SETREF (msg, async_result, ares);
2083 msg->call_type = CallType_BeginInvoke;
2086 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2088 mono_raise_exception ((MonoException *) exc);
2094 klass = delegate->object.vtable->klass;
2096 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2098 method = mono_get_delegate_invoke (klass);
2101 return mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params);
2107 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2109 int i, params_var, tmp_var;
2111 /* allocate local (pointer) *params[] */
2112 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2113 /* allocate local (pointer) tmp */
2114 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2116 /* alloate space on stack to store an array of pointers to the arguments */
2117 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2118 mono_mb_emit_byte (mb, CEE_PREFIX1);
2119 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2120 mono_mb_emit_stloc (mb, params_var);
2123 mono_mb_emit_ldloc (mb, params_var);
2124 mono_mb_emit_stloc (mb, tmp_var);
2126 if (save_this && sig->hasthis) {
2127 mono_mb_emit_ldloc (mb, tmp_var);
2128 mono_mb_emit_ldarg_addr (mb, 0);
2129 mono_mb_emit_byte (mb, CEE_STIND_I);
2130 /* tmp = tmp + sizeof (gpointer) */
2131 if (sig->param_count)
2132 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2136 for (i = 0; i < sig->param_count; i++) {
2137 mono_mb_emit_ldloc (mb, tmp_var);
2138 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2139 mono_mb_emit_byte (mb, CEE_STIND_I);
2140 /* tmp = tmp + sizeof (gpointer) */
2141 if (i < (sig->param_count - 1))
2142 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2148 #endif /* DISABLE_JIT */
2151 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2155 GString *res = g_string_new ("");
2158 g_string_append (res, prefix);
2159 g_string_append_c (res, '_');
2162 mono_type_get_desc (res, sig->ret, FALSE);
2165 g_string_append (res, "__this__");
2167 for (i = 0; i < sig->param_count; ++i) {
2168 g_string_append_c (res, '_');
2169 mono_type_get_desc (res, sig->params [i], FALSE);
2172 g_string_free (res, FALSE);
2177 * mono_marshal_get_string_encoding:
2179 * Return the string encoding which should be used for a given parameter.
2181 static MonoMarshalNative
2182 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2184 /* First try the parameter marshal info */
2186 if (spec->native == MONO_NATIVE_LPARRAY) {
2187 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2188 return spec->data.array_data.elem_type;
2191 return spec->native;
2195 return MONO_NATIVE_LPSTR;
2197 /* Then try the method level marshal info */
2198 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2199 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2200 return MONO_NATIVE_LPSTR;
2201 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2202 return MONO_NATIVE_LPWSTR;
2203 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2205 return MONO_NATIVE_LPWSTR;
2207 return MONO_NATIVE_LPSTR;
2210 return MONO_NATIVE_LPSTR;
2214 static MonoMarshalConv
2215 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2217 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2220 case MONO_NATIVE_LPWSTR:
2221 return MONO_MARSHAL_CONV_STR_LPWSTR;
2222 case MONO_NATIVE_LPSTR:
2223 case MONO_NATIVE_VBBYREFSTR:
2224 return MONO_MARSHAL_CONV_STR_LPSTR;
2225 case MONO_NATIVE_LPTSTR:
2226 return MONO_MARSHAL_CONV_STR_LPTSTR;
2227 case MONO_NATIVE_BSTR:
2228 return MONO_MARSHAL_CONV_STR_BSTR;
2230 return (MonoMarshalConv)-1;
2234 static MonoMarshalConv
2235 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2237 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2240 case MONO_NATIVE_LPWSTR:
2241 return MONO_MARSHAL_CONV_SB_LPWSTR;
2243 case MONO_NATIVE_LPSTR:
2244 return MONO_MARSHAL_CONV_SB_LPSTR;
2246 case MONO_NATIVE_LPTSTR:
2247 return MONO_MARSHAL_CONV_SB_LPTSTR;
2250 return (MonoMarshalConv)-1;
2254 static MonoMarshalConv
2255 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2257 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2262 case MONO_NATIVE_LPWSTR:
2264 return MONO_MARSHAL_CONV_LPWSTR_STR;
2265 case MONO_NATIVE_LPSTR:
2266 case MONO_NATIVE_VBBYREFSTR:
2267 return MONO_MARSHAL_CONV_LPSTR_STR;
2268 case MONO_NATIVE_LPTSTR:
2269 return MONO_MARSHAL_CONV_LPTSTR_STR;
2270 case MONO_NATIVE_BSTR:
2271 return MONO_MARSHAL_CONV_BSTR_STR;
2273 return (MonoMarshalConv)-1;
2277 static MonoMarshalConv
2278 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2280 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2285 case MONO_NATIVE_LPWSTR:
2287 * mono_string_builder_to_utf16 does not allocate a
2288 * new buffer, so no need to free it.
2291 return MONO_MARSHAL_CONV_LPWSTR_SB;
2292 case MONO_NATIVE_LPSTR:
2293 return MONO_MARSHAL_CONV_LPSTR_SB;
2295 case MONO_NATIVE_LPTSTR:
2296 return MONO_MARSHAL_CONV_LPTSTR_SB;
2299 return (MonoMarshalConv)-1;
2304 * Return whenever a field of a native structure or an array member needs to
2308 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2310 MonoMarshalNative encoding;
2313 case MONO_TYPE_VALUETYPE:
2314 /* FIXME: Optimize this */
2316 case MONO_TYPE_OBJECT:
2317 case MONO_TYPE_CLASS:
2318 if (t->data.klass == mono_defaults.stringbuilder_class) {
2320 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2324 case MONO_TYPE_STRING:
2325 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2326 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2333 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2336 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2339 mono_marshal_lock ();
2342 g_hash_table_new (hash_func, equal_func);
2343 mono_memory_barrier ();
2346 mono_marshal_unlock ();
2352 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2354 return get_cache (var, hash_func, equal_func);
2358 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2362 mono_marshal_lock ();
2363 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2364 mono_marshal_unlock ();
2371 * Create a MonoMethod from MB, set INFO as wrapper info.
2374 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2375 int max_stack, WrapperInfo *info)
2379 res = mono_mb_create_method (mb, sig, max_stack);
2381 mono_marshal_set_wrapper_info (res, info);
2385 /* Create the method from the builder and place it in the cache */
2387 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2388 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2389 int max_stack, WrapperInfo *info, gboolean *out_found)
2396 mono_marshal_lock ();
2397 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2398 mono_marshal_unlock ();
2401 newm = mono_mb_create_method (mb, sig, max_stack);
2402 mono_marshal_lock ();
2403 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2406 g_hash_table_insert (cache, key, res);
2407 mono_marshal_set_wrapper_info (res, info);
2408 mono_marshal_unlock ();
2412 mono_marshal_unlock ();
2413 mono_free_method (newm);
2421 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2422 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2425 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2429 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2432 int wrapper_type = wrapper->wrapper_type;
2435 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2438 info = mono_marshal_get_wrapper_info (wrapper);
2440 switch (wrapper_type) {
2441 case MONO_WRAPPER_REMOTING_INVOKE:
2442 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2443 case MONO_WRAPPER_XDOMAIN_INVOKE:
2444 m = info->d.remoting.method;
2445 if (wrapper->is_inflated) {
2449 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2450 * contains an uninflated method.
2452 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2453 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2457 case MONO_WRAPPER_SYNCHRONIZED:
2458 m = info->d.synchronized.method;
2459 if (wrapper->is_inflated) {
2462 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2463 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2467 case MONO_WRAPPER_UNBOX:
2468 return info->d.unbox.method;
2469 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2470 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2471 return info->d.managed_to_native.method;
2474 case MONO_WRAPPER_RUNTIME_INVOKE:
2475 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2476 return info->d.runtime_invoke.method;
2485 * mono_marshal_get_wrapper_info:
2487 * Retrieve the WrapperInfo structure associated with WRAPPER.
2490 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2492 g_assert (wrapper->wrapper_type);
2494 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2498 * mono_marshal_set_wrapper_info:
2500 * Set the WrapperInfo structure associated with the wrapper
2501 * method METHOD to INFO.
2504 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2508 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2511 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2516 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2520 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2521 info->subtype = subtype;
2526 * get_wrapper_target_class:
2528 * Return the class where a wrapper method should be placed.
2531 get_wrapper_target_class (MonoImage *image)
2538 * - can't put all wrappers into an mscorlib class, because they reference
2539 * metadata (signature) so they should be put into the same image as the
2540 * method they wrap, so they are unloaded together.
2541 * - putting them into a class with a type initalizer could cause the
2542 * initializer to be executed which can be a problem if the wrappers are
2544 * - putting them into an inflated class can cause problems if the the
2545 * class is deleted because it references an image which is unloaded.
2546 * To avoid these problems, we put the wrappers into the <Module> class of
2549 if (image_is_dynamic (image)) {
2550 klass = ((MonoDynamicImage*)image)->wrappers_type;
2552 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2553 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2561 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2562 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2566 * check_generic_wrapper_cache:
2568 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2569 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2570 * generic method definition.
2573 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2576 MonoMethod *inst, *def;
2577 MonoGenericContext *ctx;
2579 g_assert (orig_method->is_inflated);
2580 ctx = mono_method_get_context (orig_method);
2583 * Look for the instance
2585 res = mono_marshal_find_in_cache (cache, key);
2590 * Look for the definition
2592 def = mono_marshal_find_in_cache (cache, def_key);
2595 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2596 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2598 mono_memory_barrier ();
2599 mono_marshal_lock ();
2600 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2602 g_hash_table_insert (cache, key, inst);
2605 mono_marshal_unlock ();
2612 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2615 MonoMethod *inst, *res;
2618 * We use the same cache for the generic definition and the instances.
2620 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2621 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2622 mono_memory_barrier ();
2623 mono_marshal_lock ();
2624 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2626 g_hash_table_insert (cache, key, inst);
2629 mono_marshal_unlock ();
2634 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2638 MonoMethod *inst, *def;
2641 * Look for the instance
2643 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2648 * Look for the definition
2650 def = mono_marshal_find_in_cache (cache, def_method->klass);
2652 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2653 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2656 mono_memory_barrier ();
2657 mono_marshal_lock ();
2658 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2660 g_hash_table_insert (cache, orig_method->klass, inst);
2663 mono_marshal_unlock ();
2670 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2673 MonoMethod *inst, *res;
2676 * We use the same cache for the generic definition and the instances.
2678 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2679 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2681 mono_memory_barrier ();
2682 mono_marshal_lock ();
2683 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2685 g_hash_table_insert (cache, orig_method->klass, inst);
2688 mono_marshal_unlock ();
2693 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2695 MonoMethodSignature *sig;
2696 MonoMethodBuilder *mb;
2701 MonoGenericContext *ctx = NULL;
2702 MonoMethod *orig_method = NULL;
2704 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2705 !strcmp (method->name, "BeginInvoke"));
2708 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2710 if (method->is_inflated) {
2711 orig_method = method;
2712 ctx = &((MonoMethodInflated*)method)->context;
2713 method = ((MonoMethodInflated*)method)->declaring;
2716 sig = mono_signature_no_pinvoke (method);
2722 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2723 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2727 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2728 (GHashFunc)mono_signature_hash,
2729 (GCompareFunc)mono_metadata_signature_equal);
2730 if ((res = mono_marshal_find_in_cache (cache, sig)))
2734 g_assert (sig->hasthis);
2736 name = mono_signature_to_name (sig, "begin_invoke");
2738 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2740 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2744 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2746 mono_mb_emit_ldarg (mb, 0);
2747 mono_mb_emit_ldloc (mb, params_var);
2748 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2749 mono_mb_emit_byte (mb, CEE_RET);
2754 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2755 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2757 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2765 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2767 MonoDomain *domain = mono_domain_get ();
2768 MonoAsyncResult *ares;
2769 MonoMethod *method = NULL;
2770 MonoMethodSignature *sig;
2771 MonoMethodMessage *msg;
2772 MonoObject *res, *exc;
2773 MonoArray *out_args;
2776 g_assert (delegate);
2778 if (!delegate->method_info) {
2779 g_assert (delegate->method);
2780 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2783 if (!delegate->method_info || !delegate->method_info->method)
2784 g_assert_not_reached ();
2786 klass = delegate->object.vtable->klass;
2788 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2789 g_assert (method != NULL);
2791 sig = mono_signature_no_pinvoke (method);
2793 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2795 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2797 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."));
2801 if (ares->async_delegate != (MonoObject*)delegate) {
2802 mono_raise_exception (mono_get_exception_invalid_operation (
2803 "The IAsyncResult object provided does not match this delegate."));
2807 #ifndef DISABLE_REMOTING
2808 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2809 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2810 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2811 mono_message_init (domain, msg, delegate->method_info, NULL);
2812 msg->call_type = CallType_EndInvoke;
2813 MONO_OBJECT_SETREF (msg, async_result, ares);
2814 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2818 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2822 if (((MonoException*)exc)->stack_trace) {
2823 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2825 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2827 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2830 mono_raise_exception ((MonoException*)exc);
2833 mono_method_return_message_restore (method, params, out_args);
2840 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2842 MonoType *t = mono_type_get_underlying_type (return_type);
2844 if (return_type->byref)
2845 return_type = &mono_defaults.int_class->byval_arg;
2848 case MONO_TYPE_VOID:
2849 g_assert_not_reached ();
2852 case MONO_TYPE_STRING:
2853 case MONO_TYPE_CLASS:
2854 case MONO_TYPE_OBJECT:
2855 case MONO_TYPE_ARRAY:
2856 case MONO_TYPE_SZARRAY:
2860 case MONO_TYPE_BOOLEAN:
2863 case MONO_TYPE_CHAR:
2873 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2874 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2876 case MONO_TYPE_GENERICINST:
2877 if (!mono_type_generic_inst_is_valuetype (t))
2880 case MONO_TYPE_VALUETYPE: {
2881 MonoClass *klass = mono_class_from_mono_type (return_type);
2882 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2883 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2887 case MONO_TYPE_MVAR: {
2888 MonoClass *klass = mono_class_from_mono_type (return_type);
2889 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2893 g_warning ("type 0x%x not handled", return_type->type);
2894 g_assert_not_reached ();
2897 mono_mb_emit_byte (mb, CEE_RET);
2900 #endif /* DISABLE_JIT */
2903 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2905 MonoMethodSignature *sig;
2906 MonoMethodBuilder *mb;
2911 MonoGenericContext *ctx = NULL;
2912 MonoMethod *orig_method = NULL;
2914 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2915 !strcmp (method->name, "EndInvoke"));
2918 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2920 if (method->is_inflated) {
2921 orig_method = method;
2922 ctx = &((MonoMethodInflated*)method)->context;
2923 method = ((MonoMethodInflated*)method)->declaring;
2926 sig = mono_signature_no_pinvoke (method);
2932 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
2933 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2937 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
2938 (GHashFunc)mono_signature_hash,
2939 (GCompareFunc)mono_metadata_signature_equal);
2940 if ((res = mono_marshal_find_in_cache (cache, sig)))
2944 g_assert (sig->hasthis);
2946 name = mono_signature_to_name (sig, "end_invoke");
2948 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2950 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2954 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2956 mono_mb_emit_ldarg (mb, 0);
2957 mono_mb_emit_ldloc (mb, params_var);
2958 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2960 if (sig->ret->type == MONO_TYPE_VOID) {
2961 mono_mb_emit_byte (mb, CEE_POP);
2962 mono_mb_emit_byte (mb, CEE_RET);
2964 mono_mb_emit_restore_result (mb, sig->ret);
2969 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2970 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2972 res = mono_mb_create_and_cache (cache, sig,
2973 mb, sig, sig->param_count + 16);
2982 MonoMethodSignature *sig;
2984 } SignaturePointerPair;
2987 signature_pointer_pair_hash (gconstpointer data)
2989 SignaturePointerPair *pair = (SignaturePointerPair*)data;
2991 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
2995 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
2997 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
2998 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3002 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3004 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3006 return pair->pointer == user_data;
3010 free_signature_pointer_pair (SignaturePointerPair *pair)
3016 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3018 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3020 MonoMethodBuilder *mb;
3023 gpointer cache_key = NULL;
3024 SignaturePointerPair key;
3025 SignaturePointerPair *new_key;
3026 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3027 int pos0, pos1, pos2;
3029 MonoClass *target_class = NULL;
3030 gboolean closed_over_null = FALSE;
3031 MonoGenericContext *ctx = NULL;
3032 MonoGenericContainer *container = NULL;
3033 MonoMethod *orig_method = NULL;
3035 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3039 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3040 !strcmp (method->name, "Invoke"));
3042 invoke_sig = sig = mono_signature_no_pinvoke (method);
3045 * If the delegate target is null, and the target method is not static, a virtual
3046 * call is made to that method with the first delegate argument as this. This is
3047 * a non-documented .NET feature.
3050 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3051 if (target_method->is_inflated) {
3052 MonoType *target_type;
3054 g_assert (method->signature->hasthis);
3055 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3056 mono_method_get_context (method));
3057 target_class = mono_class_from_mono_type (target_type);
3059 target_class = target_method->klass;
3062 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3065 if (static_method_with_first_arg_bound) {
3066 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3067 g_assert (!callvirt);
3068 invoke_sig = mono_method_signature (target_method);
3072 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3074 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3075 orig_method = method;
3076 ctx = &((MonoMethodInflated*)method)->context;
3077 method = ((MonoMethodInflated*)method)->declaring;
3079 container = mono_method_get_generic_container (method);
3081 container = method->klass->generic_container;
3082 g_assert (container);
3084 invoke_sig = sig = mono_signature_no_pinvoke (method);
3091 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3092 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3095 cache_key = method->klass;
3096 } else if (static_method_with_first_arg_bound) {
3097 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3098 (GHashFunc)mono_signature_hash,
3099 (GCompareFunc)mono_metadata_signature_equal);
3101 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3103 res = mono_marshal_find_in_cache (cache, invoke_sig);
3106 cache_key = invoke_sig;
3107 } else if (callvirt) {
3108 GHashTable **cache_ptr;
3110 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3112 /* We need to cache the signature+method pair */
3113 mono_marshal_lock ();
3115 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3117 key.sig = invoke_sig;
3118 key.pointer = target_method;
3119 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3120 mono_marshal_unlock ();
3124 // Inflated methods should not be in this cache because it's not stored on the imageset.
3125 g_assert (!method->is_inflated);
3126 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3127 (GHashFunc)mono_signature_hash,
3128 (GCompareFunc)mono_metadata_signature_equal);
3129 res = mono_marshal_find_in_cache (cache, sig);
3135 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3136 static_sig->hasthis = 0;
3137 if (!static_method_with_first_arg_bound)
3138 invoke_sig = static_sig;
3140 if (static_method_with_first_arg_bound)
3141 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3142 else if (closed_over_null)
3143 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3145 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3147 name = mono_signature_to_name (invoke_sig, "invoke");
3149 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3151 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3155 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3157 /* allocate local 0 (object) */
3158 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3159 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3160 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3161 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3162 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3165 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3167 g_assert (sig->hasthis);
3170 * {type: sig->ret} res;
3171 * if (delegates == null) {
3172 * return this.<target> ( args .. );
3174 * int i = 0, len = this.delegates.Length;
3176 * res = this.delegates [i].Invoke ( args .. );
3177 * } while (++i < len);
3182 /* this wrapper can be used in unmanaged-managed transitions */
3183 emit_thread_interrupt_checkpoint (mb);
3185 /* delegates = this.delegates */
3186 mono_mb_emit_ldarg (mb, 0);
3187 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3188 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3189 mono_mb_emit_stloc (mb, local_delegates);
3192 /* if (delegates == null) */
3193 mono_mb_emit_ldloc (mb, local_delegates);
3194 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3196 /* return target.<target_method|method_ptr> ( args .. ); */
3198 /* target = d.target; */
3199 mono_mb_emit_ldarg (mb, 0);
3200 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3201 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3202 mono_mb_emit_stloc (mb, local_target);
3204 /*static methods with bound first arg can have null target and still be bound*/
3205 if (!static_method_with_first_arg_bound) {
3206 /* if target != null */
3207 mono_mb_emit_ldloc (mb, local_target);
3208 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3210 /* then call this->method_ptr nonstatic */
3213 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3215 mono_mb_emit_ldloc (mb, local_target);
3216 for (i = 0; i < sig->param_count; ++i)
3217 mono_mb_emit_ldarg (mb, i + 1);
3218 mono_mb_emit_ldarg (mb, 0);
3219 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, rgctx));
3220 mono_mb_emit_byte (mb, CEE_LDIND_I);
3221 mono_mb_emit_ldarg (mb, 0);
3222 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3223 mono_mb_emit_byte (mb, CEE_LDIND_I);
3224 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3225 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3226 mono_mb_emit_byte (mb, CEE_RET);
3229 /* else [target == null] call this->method_ptr static */
3230 mono_mb_patch_branch (mb, pos0);
3234 if (!closed_over_null) {
3235 if (target_class->valuetype) {
3236 mono_mb_emit_ldarg (mb, 1);
3237 for (i = 1; i < sig->param_count; ++i)
3238 mono_mb_emit_ldarg (mb, i + 1);
3239 mono_mb_emit_op (mb, CEE_CALL, target_method);
3241 mono_mb_emit_ldarg (mb, 1);
3242 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3243 for (i = 1; i < sig->param_count; ++i)
3244 mono_mb_emit_ldarg (mb, i + 1);
3245 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3248 mono_mb_emit_byte (mb, CEE_LDNULL);
3249 for (i = 0; i < sig->param_count; ++i)
3250 mono_mb_emit_ldarg (mb, i + 1);
3251 mono_mb_emit_op (mb, CEE_CALL, target_method);
3254 if (static_method_with_first_arg_bound) {
3255 mono_mb_emit_ldloc (mb, local_target);
3256 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3257 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3259 for (i = 0; i < sig->param_count; ++i)
3260 mono_mb_emit_ldarg (mb, i + 1);
3261 mono_mb_emit_ldarg (mb, 0);
3262 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, rgctx));
3263 mono_mb_emit_byte (mb, CEE_LDIND_I);
3264 mono_mb_emit_ldarg (mb, 0);
3265 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3266 mono_mb_emit_byte (mb, CEE_LDIND_I);
3267 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3268 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3271 mono_mb_emit_byte (mb, CEE_RET);
3273 /* else [delegates != null] */
3274 mono_mb_patch_branch (mb, pos2);
3276 /* len = delegates.Length; */
3277 mono_mb_emit_ldloc (mb, local_delegates);
3278 mono_mb_emit_byte (mb, CEE_LDLEN);
3279 mono_mb_emit_byte (mb, CEE_CONV_I4);
3280 mono_mb_emit_stloc (mb, local_len);
3283 mono_mb_emit_icon (mb, 0);
3284 mono_mb_emit_stloc (mb, local_i);
3286 pos1 = mono_mb_get_label (mb);
3288 /* d = delegates [i]; */
3289 mono_mb_emit_ldloc (mb, local_delegates);
3290 mono_mb_emit_ldloc (mb, local_i);
3291 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3292 mono_mb_emit_stloc (mb, local_d);
3294 /* res = d.Invoke ( args .. ); */
3295 mono_mb_emit_ldloc (mb, local_d);
3296 for (i = 0; i < sig->param_count; i++)
3297 mono_mb_emit_ldarg (mb, i + 1);
3299 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3302 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3303 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3306 mono_mb_emit_stloc (mb, local_res);
3309 mono_mb_emit_add_to_local (mb, local_i, 1);
3312 mono_mb_emit_ldloc (mb, local_i);
3313 mono_mb_emit_ldloc (mb, local_len);
3314 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3318 mono_mb_emit_ldloc (mb, local_res);
3319 mono_mb_emit_byte (mb, CEE_RET);
3321 mb->skip_visibility = 1;
3322 #endif /* DISABLE_JIT */
3324 info = mono_wrapper_info_create (mb, subtype);
3329 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3330 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3331 } else if (callvirt) {
3332 new_key = g_new0 (SignaturePointerPair, 1);
3335 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3339 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3343 /* mono_method_print_code (res); */
3349 * the returned method invokes all methods in a multicast delegate.
3352 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3354 gboolean callvirt = FALSE;
3355 gboolean static_method_with_first_arg_bound = FALSE;
3356 MonoMethod *target_method = NULL;
3357 MonoMethodSignature *sig;
3359 sig = mono_signature_no_pinvoke (method);
3361 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3363 target_method = del->method;
3366 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3367 static_method_with_first_arg_bound = TRUE;
3368 target_method = del->method;
3371 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3375 MonoMethodSignature *ctor_sig;
3376 MonoMethodSignature *sig;
3379 /* protected by the marshal lock, contains CtorSigPair pointers */
3380 static GSList *strsig_list = NULL;
3382 static MonoMethodSignature *
3383 lookup_string_ctor_signature (MonoMethodSignature *sig)
3385 MonoMethodSignature *callsig;
3389 mono_marshal_lock ();
3391 for (item = strsig_list; item; item = item->next) {
3392 cs = (CtorSigPair *)item->data;
3393 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3394 * because it is lock-free.
3396 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3401 mono_marshal_unlock ();
3405 static MonoMethodSignature *
3406 add_string_ctor_signature (MonoMethod *method)
3408 MonoMethodSignature *callsig;
3411 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3412 callsig->ret = &mono_defaults.string_class->byval_arg;
3413 cs = g_new (CtorSigPair, 1);
3415 cs->ctor_sig = mono_method_signature (method);
3417 mono_marshal_lock ();
3418 strsig_list = g_slist_prepend (strsig_list, cs);
3419 mono_marshal_unlock ();
3424 * mono_marshal_get_string_ctor_signature:
3426 * Return the modified signature used by string ctors (they return the newly created
3429 MonoMethodSignature*
3430 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3432 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3434 sig = add_string_ctor_signature (method);
3440 get_runtime_invoke_type (MonoType *t, gboolean ret)
3443 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3445 /* Can't share this with 'I' as that needs another indirection */
3446 return &mono_defaults.int_class->this_arg;
3449 if (MONO_TYPE_IS_REFERENCE (t))
3450 return &mono_defaults.object_class->byval_arg;
3453 /* The result needs to be boxed */
3458 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3461 return &mono_defaults.sbyte_class->byval_arg;
3463 return &mono_defaults.int16_class->byval_arg;
3465 return &mono_defaults.int32_class->byval_arg;
3468 return &mono_defaults.int64_class->byval_arg;
3469 case MONO_TYPE_BOOLEAN:
3470 return &mono_defaults.byte_class->byval_arg;
3471 case MONO_TYPE_CHAR:
3472 return &mono_defaults.uint16_class->byval_arg;
3475 return &mono_defaults.int_class->byval_arg;
3476 case MONO_TYPE_VALUETYPE:
3477 if (t->data.klass->enumtype) {
3478 t = mono_class_enum_basetype (t->data.klass);
3488 * mono_marshal_get_runtime_invoke_sig:
3490 * Return a common signature used for sharing runtime invoke wrappers.
3492 static MonoMethodSignature*
3493 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3495 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3498 res->generic_param_count = 0;
3499 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3500 for (i = 0; i < res->param_count; ++i)
3501 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3507 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3509 /* Can't share wrappers which return a vtype since it needs to be boxed */
3510 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))
3513 return mono_metadata_signature_equal (sig1, sig2);
3521 * Emit the call to the wrapper method from a runtime invoke wrapper.
3524 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3525 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3527 gboolean virtual_, gboolean need_direct_wrapper)
3529 static MonoString *string_dummy = NULL;
3531 int *tmp_nullable_locals;
3532 gboolean void_ret = FALSE;
3533 gboolean string_ctor = method && method->string_ctor;
3535 /* to make it work with our special string constructors */
3536 if (!string_dummy) {
3537 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3538 string_dummy = mono_string_new_wrapper ("dummy");
3542 g_assert (sig->hasthis);
3543 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3548 if (mono_gc_is_moving ()) {
3549 mono_mb_emit_ptr (mb, &string_dummy);
3550 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3552 mono_mb_emit_ptr (mb, string_dummy);
3555 mono_mb_emit_ldarg (mb, 0);
3559 tmp_nullable_locals = g_new0 (int, sig->param_count);
3561 for (i = 0; i < sig->param_count; i++) {
3562 MonoType *t = sig->params [i];
3565 mono_mb_emit_ldarg (mb, 1);
3567 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3568 mono_mb_emit_byte (mb, CEE_ADD);
3572 mono_mb_emit_byte (mb, CEE_LDIND_I);
3573 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3574 * So to make this work we unbox it to a local variablee and push a reference to that.
3576 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3577 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3579 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3580 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3581 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3586 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3587 type = sig->params [i]->type;
3591 case MONO_TYPE_BOOLEAN:
3595 case MONO_TYPE_CHAR:
3604 mono_mb_emit_byte (mb, CEE_LDIND_I);
3605 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3607 case MONO_TYPE_STRING:
3608 case MONO_TYPE_CLASS:
3609 case MONO_TYPE_ARRAY:
3611 case MONO_TYPE_SZARRAY:
3612 case MONO_TYPE_OBJECT:
3613 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3615 case MONO_TYPE_GENERICINST:
3616 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3617 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3622 case MONO_TYPE_VALUETYPE:
3623 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3624 type = mono_class_enum_basetype (t->data.klass)->type;
3627 mono_mb_emit_byte (mb, CEE_LDIND_I);
3628 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3629 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3630 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3631 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3633 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3637 g_assert_not_reached ();
3642 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3643 } else if (need_direct_wrapper) {
3644 mono_mb_emit_op (mb, CEE_CALL, method);
3646 mono_mb_emit_ldarg (mb, 3);
3647 mono_mb_emit_calli (mb, callsig);
3650 if (sig->ret->byref) {
3652 g_assert_not_reached ();
3655 switch (sig->ret->type) {
3656 case MONO_TYPE_VOID:
3660 case MONO_TYPE_BOOLEAN:
3661 case MONO_TYPE_CHAR:
3674 case MONO_TYPE_VALUETYPE:
3675 case MONO_TYPE_TYPEDBYREF:
3676 case MONO_TYPE_GENERICINST:
3677 /* box value types */
3678 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3680 case MONO_TYPE_STRING:
3681 case MONO_TYPE_CLASS:
3682 case MONO_TYPE_ARRAY:
3683 case MONO_TYPE_SZARRAY:
3684 case MONO_TYPE_OBJECT:
3688 /* The result is an IntPtr */
3689 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3692 g_assert_not_reached ();
3696 mono_mb_emit_stloc (mb, loc_res);
3698 /* Convert back nullable-byref arguments */
3699 for (i = 0; i < sig->param_count; i++) {
3700 MonoType *t = sig->params [i];
3703 * Box the result and put it back into the array, the caller will have
3704 * to obtain it from there.
3706 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3707 mono_mb_emit_ldarg (mb, 1);
3708 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3709 mono_mb_emit_byte (mb, CEE_ADD);
3711 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3712 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3714 mono_mb_emit_byte (mb, CEE_STIND_REF);
3718 g_free (tmp_nullable_locals);
3722 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3723 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3724 gboolean virtual_, gboolean need_direct_wrapper)
3727 MonoExceptionClause *clause;
3728 int loc_res, loc_exc;
3730 /* The wrapper looks like this:
3736 * } catch (Exception e) {
3744 /* allocate local 0 (object) tmp */
3745 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3746 /* allocate local 1 (object) exc */
3747 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3749 /* *exc is assumed to be initialized to NULL by the caller */
3751 mono_mb_emit_byte (mb, CEE_LDARG_2);
3752 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3757 labels [1] = mono_mb_get_label (mb);
3758 emit_thread_force_interrupt_checkpoint (mb);
3759 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3761 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3763 /* Add a try clause around the call */
3764 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3765 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3766 clause->data.catch_class = mono_defaults.exception_class;
3767 clause->try_offset = labels [1];
3768 clause->try_len = mono_mb_get_label (mb) - labels [1];
3770 clause->handler_offset = mono_mb_get_label (mb);
3773 mono_mb_emit_stloc (mb, loc_exc);
3774 mono_mb_emit_byte (mb, CEE_LDARG_2);
3775 mono_mb_emit_ldloc (mb, loc_exc);
3776 mono_mb_emit_byte (mb, CEE_STIND_REF);
3778 mono_mb_emit_branch (mb, CEE_LEAVE);
3780 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3782 mono_mb_set_clauses (mb, 1, clause);
3784 mono_mb_patch_branch (mb, labels [2]);
3785 mono_mb_emit_ldloc (mb, loc_res);
3786 mono_mb_emit_byte (mb, CEE_RET);
3791 mono_mb_patch_branch (mb, labels [0]);
3792 emit_thread_force_interrupt_checkpoint (mb);
3793 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3795 mono_mb_emit_ldloc (mb, 0);
3796 mono_mb_emit_byte (mb, CEE_RET);
3801 * generates IL code for the runtime invoke function
3802 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3804 * we also catch exceptions if exc != null
3805 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3806 * it means that the compiled code for METHOD does not have to be looked up
3807 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3808 * its METHOD argument.
3811 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3813 MonoMethodSignature *sig, *csig, *callsig;
3814 MonoMethodBuilder *mb;
3815 GHashTable *cache = NULL;
3816 MonoClass *target_klass;
3817 MonoMethod *res = NULL;
3818 static MonoMethodSignature *cctor_signature = NULL;
3819 static MonoMethodSignature *finalize_signature = NULL;
3821 const char *param_names [16];
3822 gboolean need_direct_wrapper = FALSE;
3827 if (!cctor_signature) {
3828 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3829 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3831 if (!finalize_signature) {
3832 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3833 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3834 finalize_signature->hasthis = 1;
3838 need_direct_wrapper = TRUE;
3841 * Use a separate cache indexed by methods to speed things up and to avoid the
3842 * boundless mempool growth caused by the signature_dup stuff below.
3845 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3847 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3849 res = mono_marshal_find_in_cache (cache, method);
3853 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3854 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3856 * Array Get/Set/Address methods. The JIT implements them using inline code
3857 * so we need to create an invoke wrapper which calls the method directly.
3859 need_direct_wrapper = TRUE;
3862 if (method->string_ctor) {
3863 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3865 callsig = add_string_ctor_signature (method);
3866 /* Can't share this as we push a string as this */
3867 need_direct_wrapper = TRUE;
3869 if (method_is_dynamic (method))
3870 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3872 callsig = mono_method_signature (method);
3875 sig = mono_method_signature (method);
3877 target_klass = get_wrapper_target_class (method->klass->image);
3879 /* Try to share wrappers for non-corlib methods with simple signatures */
3880 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3881 callsig = cctor_signature;
3882 target_klass = mono_defaults.object_class;
3883 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3884 callsig = finalize_signature;
3885 target_klass = mono_defaults.object_class;
3888 if (need_direct_wrapper) {
3889 /* Already searched at the start */
3891 MonoMethodSignature *tmp_sig;
3893 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3894 GHashTable **cache_table = NULL;
3896 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3897 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
3899 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
3901 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
3902 (GCompareFunc)runtime_invoke_signature_equal);
3904 /* from mono_marshal_find_in_cache */
3905 mono_marshal_lock ();
3906 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
3907 mono_marshal_unlock ();
3914 /* Make a copy of the signature from the image mempool */
3916 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3920 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3922 csig->ret = &mono_defaults.object_class->byval_arg;
3923 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3924 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3926 csig->params [0] = &mono_defaults.object_class->byval_arg;
3927 csig->params [1] = &mono_defaults.int_class->byval_arg;
3928 csig->params [2] = &mono_defaults.int_class->byval_arg;
3929 csig->params [3] = &mono_defaults.int_class->byval_arg;
3932 /* This is called from runtime code so it has to be cdecl */
3933 csig->call_convention = MONO_CALL_C;
3936 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
3937 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3941 param_names [0] = "this";
3942 param_names [1] = "params";
3943 param_names [2] = "exc";
3944 param_names [3] = "method";
3945 mono_mb_set_param_names (mb, param_names);
3947 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
3950 if (need_direct_wrapper) {
3952 mb->skip_visibility = 1;
3954 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
3955 info->d.runtime_invoke.method = method;
3956 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
3958 /* taken from mono_mb_create_and_cache */
3959 mono_marshal_lock ();
3960 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
3961 mono_marshal_unlock ();
3963 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
3964 info->d.runtime_invoke.sig = callsig;
3966 /* Somebody may have created it before us */
3969 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
3971 mono_marshal_lock ();
3972 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
3974 GHashTable *direct_cache;
3976 g_hash_table_insert (cache, callsig, res);
3977 /* Can't insert it into wrapper_hash since the key is a signature */
3978 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
3980 g_hash_table_insert (direct_cache, method, res);
3982 mono_free_method (newm);
3984 mono_marshal_unlock ();
3987 /* end mono_mb_create_and_cache */
3996 * mono_marshal_get_runtime_invoke_dynamic:
3998 * Return a method which can be used to invoke managed methods from native code
4000 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4001 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4002 * ARGS should point to an architecture specific structure containing
4003 * the arguments and space for the return value.
4004 * The other arguments are the same as for runtime_invoke (), except that
4005 * ARGS should contain the this argument too.
4006 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4007 * is only one copy of it, which is useful in full-aot.
4008 * The wrapper info for the wrapper is a WrapperInfo structure.
4011 mono_marshal_get_runtime_invoke_dynamic (void)
4013 static MonoMethod *method;
4014 MonoMethodSignature *csig;
4015 MonoExceptionClause *clause;
4016 MonoMethodBuilder *mb;
4024 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4026 csig->ret = &mono_defaults.void_class->byval_arg;
4027 csig->params [0] = &mono_defaults.int_class->byval_arg;
4028 csig->params [1] = &mono_defaults.int_class->byval_arg;
4029 csig->params [2] = &mono_defaults.int_class->byval_arg;
4030 csig->params [3] = &mono_defaults.int_class->byval_arg;
4032 name = g_strdup ("runtime_invoke_dynamic");
4033 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4037 /* allocate local 0 (object) tmp */
4038 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4039 /* allocate local 1 (object) exc */
4040 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4042 /* cond set *exc to null */
4043 mono_mb_emit_byte (mb, CEE_LDARG_1);
4044 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4045 mono_mb_emit_byte (mb, 3);
4046 mono_mb_emit_byte (mb, CEE_LDARG_1);
4047 mono_mb_emit_byte (mb, CEE_LDNULL);
4048 mono_mb_emit_byte (mb, CEE_STIND_REF);
4050 emit_thread_force_interrupt_checkpoint (mb);
4052 mono_mb_emit_byte (mb, CEE_LDARG_0);
4053 mono_mb_emit_byte (mb, CEE_LDARG_2);
4054 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4055 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4057 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4059 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4060 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4061 clause->try_len = mono_mb_get_label (mb);
4064 clause->data.filter_offset = mono_mb_get_label (mb);
4066 mono_mb_emit_byte (mb, CEE_POP);
4067 mono_mb_emit_byte (mb, CEE_LDARG_1);
4068 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4069 mono_mb_emit_byte (mb, CEE_PREFIX1);
4070 mono_mb_emit_byte (mb, CEE_CGT_UN);
4071 mono_mb_emit_byte (mb, CEE_PREFIX1);
4072 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4074 clause->handler_offset = mono_mb_get_label (mb);
4077 /* store exception */
4078 mono_mb_emit_stloc (mb, 1);
4080 mono_mb_emit_byte (mb, CEE_LDARG_1);
4081 mono_mb_emit_ldloc (mb, 1);
4082 mono_mb_emit_byte (mb, CEE_STIND_REF);
4084 mono_mb_emit_byte (mb, CEE_LDNULL);
4085 mono_mb_emit_stloc (mb, 0);
4087 /* Check for the abort exception */
4088 mono_mb_emit_ldloc (mb, 1);
4089 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4090 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4092 /* Delay the abort exception */
4093 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4095 mono_mb_patch_short_branch (mb, posna);
4096 mono_mb_emit_branch (mb, CEE_LEAVE);
4098 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4100 mono_mb_set_clauses (mb, 1, clause);
4103 mono_mb_patch_branch (mb, pos);
4104 //mono_mb_emit_ldloc (mb, 0);
4105 mono_mb_emit_byte (mb, CEE_RET);
4106 #endif /* DISABLE_JIT */
4108 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4110 mono_marshal_lock ();
4111 /* double-checked locking */
4113 method = mono_mb_create (mb, csig, 16, info);
4115 mono_marshal_unlock ();
4123 * mono_marshal_get_runtime_invoke_for_sig:
4125 * Return a runtime invoke wrapper for a given signature.
4128 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4130 MonoMethodSignature *csig, *callsig;
4131 MonoMethodBuilder *mb;
4133 GHashTable *cache = NULL;
4134 GHashTable **cache_table = NULL;
4135 MonoMethod *res = NULL;
4137 const char *param_names [16];
4140 /* A simplified version of mono_marshal_get_runtime_invoke */
4142 image = mono_defaults.corlib;
4144 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4146 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4148 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4149 (GCompareFunc)runtime_invoke_signature_equal);
4151 /* from mono_marshal_find_in_cache */
4152 mono_marshal_lock ();
4153 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4154 mono_marshal_unlock ();
4161 /* Make a copy of the signature from the image mempool */
4162 callsig = mono_metadata_signature_dup_full (image, callsig);
4164 csig = mono_metadata_signature_alloc (image, 4);
4165 csig->ret = &mono_defaults.object_class->byval_arg;
4166 csig->params [0] = &mono_defaults.object_class->byval_arg;
4167 csig->params [1] = &mono_defaults.int_class->byval_arg;
4168 csig->params [2] = &mono_defaults.int_class->byval_arg;
4169 csig->params [3] = &mono_defaults.int_class->byval_arg;
4172 /* This is called from runtime code so it has to be cdecl */
4173 csig->call_convention = MONO_CALL_C;
4176 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4177 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4181 param_names [0] = "this";
4182 param_names [1] = "params";
4183 param_names [2] = "exc";
4184 param_names [3] = "method";
4185 mono_mb_set_param_names (mb, param_names);
4187 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4190 /* taken from mono_mb_create_and_cache */
4191 mono_marshal_lock ();
4192 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4193 mono_marshal_unlock ();
4195 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4196 info->d.runtime_invoke.sig = callsig;
4198 /* Somebody may have created it before us */
4201 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4203 mono_marshal_lock ();
4204 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4207 g_hash_table_insert (cache, callsig, res);
4209 mono_free_method (newm);
4211 mono_marshal_unlock ();
4214 /* end mono_mb_create_and_cache */
4223 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4225 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4226 klass->name_space, klass->name);
4228 mono_mb_emit_exception_marshal_directive (mb, msg);
4233 * generates IL code for the icall wrapper (the generated method
4234 * calls the unmanaged code in func)
4235 * The wrapper info for the wrapper is a WrapperInfo structure.
4238 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4240 MonoMethodSignature *csig, *csig2;
4241 MonoMethodBuilder *mb;
4246 g_assert (sig->pinvoke);
4248 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4250 mb->method->save_lmf = 1;
4252 /* Add an explicit this argument */
4254 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4256 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4260 mono_mb_emit_byte (mb, CEE_LDARG_0);
4262 for (i = 0; i < sig->param_count; i++)
4263 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4265 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4266 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4267 mono_mb_emit_calli (mb, csig2);
4268 if (check_exceptions)
4269 emit_thread_interrupt_checkpoint (mb);
4270 mono_mb_emit_byte (mb, CEE_RET);
4273 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4275 if (csig->call_convention == MONO_CALL_VARARG)
4276 csig->call_convention = 0;
4278 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4279 info->d.icall.func = (gpointer)func;
4280 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4287 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4288 MonoMarshalSpec *spec,
4289 int conv_arg, MonoType **conv_arg_type,
4290 MarshalAction action)
4293 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4294 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4299 static MonoClass *ICustomMarshaler = NULL;
4300 static MonoMethod *cleanup_native, *cleanup_managed;
4301 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4302 MonoMethod *get_instance = NULL;
4303 MonoMethodBuilder *mb = m->mb;
4304 char *exception_msg = NULL;
4308 if (!ICustomMarshaler) {
4309 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4311 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4312 goto handle_exception;
4315 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4316 g_assert (cleanup_native);
4317 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4318 g_assert (cleanup_managed);
4319 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4320 g_assert (marshal_managed_to_native);
4321 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4322 g_assert (marshal_native_to_managed);
4324 mono_memory_barrier ();
4325 ICustomMarshaler = klass;
4328 if (spec->data.custom_data.image)
4329 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4331 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4332 g_assert (mtype != NULL);
4333 mklass = mono_class_from_mono_type (mtype);
4334 g_assert (mklass != NULL);
4336 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4337 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4339 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4341 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4342 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4343 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4344 (get_sig->params [0]->type != MONO_TYPE_STRING))
4345 get_instance = NULL;
4349 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);
4352 /* Throw exception and emit compensation code if neccesary */
4353 if (exception_msg) {
4355 case MARSHAL_ACTION_CONV_IN:
4356 case MARSHAL_ACTION_CONV_RESULT:
4357 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4358 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4359 mono_mb_emit_byte (mb, CEE_POP);
4361 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4362 g_free (exception_msg);
4365 case MARSHAL_ACTION_PUSH:
4366 mono_mb_emit_byte (mb, CEE_LDNULL);
4374 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4375 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4378 case MARSHAL_ACTION_CONV_IN:
4380 case MONO_TYPE_CLASS:
4381 case MONO_TYPE_OBJECT:
4382 case MONO_TYPE_STRING:
4383 case MONO_TYPE_ARRAY:
4384 case MONO_TYPE_SZARRAY:
4385 case MONO_TYPE_VALUETYPE:
4389 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4390 g_assert_not_reached ();
4394 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4396 mono_mb_emit_byte (mb, CEE_LDNULL);
4397 mono_mb_emit_stloc (mb, conv_arg);
4399 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4402 /* Minic MS.NET behavior */
4403 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4406 /* Check for null */
4407 mono_mb_emit_ldarg (mb, argnum);
4409 mono_mb_emit_byte (mb, CEE_LDIND_I);
4410 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4412 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4414 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4416 mono_mb_emit_ldarg (mb, argnum);
4418 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4420 if (t->type == MONO_TYPE_VALUETYPE) {
4422 * Since we can't determine the type of the argument, we
4423 * will assume the unmanaged function takes a pointer.
4425 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4427 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4430 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4431 mono_mb_emit_stloc (mb, conv_arg);
4433 mono_mb_patch_branch (mb, pos2);
4436 case MARSHAL_ACTION_CONV_OUT:
4437 /* Check for null */
4438 mono_mb_emit_ldloc (mb, conv_arg);
4439 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4442 mono_mb_emit_ldarg (mb, argnum);
4444 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4446 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4448 mono_mb_emit_ldloc (mb, conv_arg);
4449 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4450 mono_mb_emit_byte (mb, CEE_STIND_REF);
4451 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4452 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4454 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4456 mono_mb_emit_ldloc (mb, conv_arg);
4457 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4459 /* We have nowhere to store the result */
4460 mono_mb_emit_byte (mb, CEE_POP);
4463 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4465 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4467 mono_mb_emit_ldloc (mb, conv_arg);
4469 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4471 mono_mb_patch_branch (mb, pos2);
4474 case MARSHAL_ACTION_PUSH:
4476 mono_mb_emit_ldloc_addr (mb, conv_arg);
4478 mono_mb_emit_ldloc (mb, conv_arg);
4481 case MARSHAL_ACTION_CONV_RESULT:
4482 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4484 mono_mb_emit_stloc (mb, 3);
4486 mono_mb_emit_ldloc (mb, 3);
4487 mono_mb_emit_stloc (mb, loc1);
4489 /* Check for null */
4490 mono_mb_emit_ldloc (mb, 3);
4491 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4493 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4495 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4496 mono_mb_emit_byte (mb, CEE_DUP);
4498 mono_mb_emit_ldloc (mb, 3);
4499 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4500 mono_mb_emit_stloc (mb, 3);
4502 mono_mb_emit_ldloc (mb, loc1);
4503 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4505 mono_mb_patch_branch (mb, pos2);
4508 case MARSHAL_ACTION_MANAGED_CONV_IN:
4509 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4511 mono_mb_emit_byte (mb, CEE_LDNULL);
4512 mono_mb_emit_stloc (mb, conv_arg);
4514 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4517 /* Check for null */
4518 mono_mb_emit_ldarg (mb, argnum);
4520 mono_mb_emit_byte (mb, CEE_LDIND_I);
4521 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4523 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4524 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4526 mono_mb_emit_ldarg (mb, argnum);
4528 mono_mb_emit_byte (mb, CEE_LDIND_I);
4530 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4531 mono_mb_emit_stloc (mb, conv_arg);
4533 mono_mb_patch_branch (mb, pos2);
4536 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4537 g_assert (!t->byref);
4539 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4541 mono_mb_emit_stloc (mb, 3);
4543 mono_mb_emit_ldloc (mb, 3);
4544 mono_mb_emit_stloc (mb, loc1);
4546 /* Check for null */
4547 mono_mb_emit_ldloc (mb, 3);
4548 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4550 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4551 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4552 mono_mb_emit_byte (mb, CEE_DUP);
4554 mono_mb_emit_ldloc (mb, 3);
4555 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4556 mono_mb_emit_stloc (mb, 3);
4558 mono_mb_emit_ldloc (mb, loc1);
4559 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4561 mono_mb_patch_branch (mb, pos2);
4564 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4566 /* Check for null */
4567 mono_mb_emit_ldloc (mb, conv_arg);
4568 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4571 mono_mb_emit_ldarg (mb, argnum);
4573 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4575 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4577 mono_mb_emit_ldloc (mb, conv_arg);
4578 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4579 mono_mb_emit_byte (mb, CEE_STIND_I);
4582 /* Call CleanUpManagedData */
4583 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4585 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4587 mono_mb_emit_ldloc (mb, conv_arg);
4588 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4590 mono_mb_patch_branch (mb, pos2);
4594 g_assert_not_reached ();
4602 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4603 MonoMarshalSpec *spec,
4604 int conv_arg, MonoType **conv_arg_type,
4605 MarshalAction action)
4608 MonoMethodBuilder *mb = m->mb;
4611 case MARSHAL_ACTION_CONV_IN: {
4612 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4614 g_assert (t->type == MONO_TYPE_OBJECT);
4615 g_assert (!t->byref);
4617 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4618 mono_mb_emit_ldarg (mb, argnum);
4619 mono_mb_emit_icon (mb, encoding);
4620 mono_mb_emit_icon (mb, t->attrs);
4621 mono_mb_emit_icall (mb, mono_marshal_asany);
4622 mono_mb_emit_stloc (mb, conv_arg);
4626 case MARSHAL_ACTION_PUSH:
4627 mono_mb_emit_ldloc (mb, conv_arg);
4630 case MARSHAL_ACTION_CONV_OUT: {
4631 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4633 mono_mb_emit_ldarg (mb, argnum);
4634 mono_mb_emit_ldloc (mb, conv_arg);
4635 mono_mb_emit_icon (mb, encoding);
4636 mono_mb_emit_icon (mb, t->attrs);
4637 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4642 g_assert_not_reached ();
4649 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4650 MonoMarshalSpec *spec,
4651 int conv_arg, MonoType **conv_arg_type,
4652 MarshalAction action)
4655 MonoMethodBuilder *mb = m->mb;
4656 MonoClass *klass, *date_time_class;
4659 klass = mono_class_from_mono_type (t);
4661 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
4664 case MARSHAL_ACTION_CONV_IN:
4665 if (klass == date_time_class) {
4666 /* Convert it to an OLE DATE type */
4667 static MonoMethod *to_oadate;
4670 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4671 g_assert (to_oadate);
4673 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4676 mono_mb_emit_ldarg (mb, argnum);
4677 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4680 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4682 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4684 mono_mb_emit_ldarg_addr (mb, argnum);
4685 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4686 mono_mb_emit_stloc (mb, conv_arg);
4690 mono_mb_patch_branch (mb, pos);
4694 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4695 klass->blittable || klass->enumtype)
4698 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4700 /* store the address of the source into local variable 0 */
4702 mono_mb_emit_ldarg (mb, argnum);
4704 mono_mb_emit_ldarg_addr (mb, argnum);
4706 mono_mb_emit_stloc (mb, 0);
4708 /* allocate space for the native struct and
4709 * store the address into local variable 1 (dest) */
4710 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4711 mono_mb_emit_byte (mb, CEE_PREFIX1);
4712 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4713 mono_mb_emit_stloc (mb, conv_arg);
4716 mono_mb_emit_ldloc (mb, 0);
4717 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4720 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4722 mono_mb_emit_ldloc (mb, conv_arg);
4723 mono_mb_emit_stloc (mb, 1);
4725 /* emit valuetype conversion code */
4726 emit_struct_conv (mb, klass, FALSE);
4730 mono_mb_patch_branch (mb, pos);
4733 case MARSHAL_ACTION_PUSH:
4734 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4736 g_assert (!t->byref);
4738 /* Have to change the signature since the vtype is passed byref */
4739 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4741 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4742 klass->blittable || klass->enumtype)
4743 mono_mb_emit_ldarg_addr (mb, argnum);
4745 mono_mb_emit_ldloc (mb, conv_arg);
4749 if (klass == date_time_class) {
4751 mono_mb_emit_ldloc_addr (mb, conv_arg);
4753 mono_mb_emit_ldloc (mb, conv_arg);
4757 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4758 klass->blittable || klass->enumtype) {
4759 mono_mb_emit_ldarg (mb, argnum);
4762 mono_mb_emit_ldloc (mb, conv_arg);
4764 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4765 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4769 case MARSHAL_ACTION_CONV_OUT:
4770 if (klass == date_time_class) {
4771 /* Convert from an OLE DATE type */
4772 static MonoMethod *from_oadate;
4777 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4779 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4780 g_assert (from_oadate);
4782 mono_mb_emit_ldarg (mb, argnum);
4783 mono_mb_emit_ldloc (mb, conv_arg);
4784 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4785 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4790 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4791 klass->blittable || klass->enumtype)
4795 /* dst = argument */
4796 mono_mb_emit_ldarg (mb, argnum);
4797 mono_mb_emit_stloc (mb, 1);
4799 mono_mb_emit_ldloc (mb, 1);
4800 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4802 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4803 /* src = tmp_locals [i] */
4804 mono_mb_emit_ldloc (mb, conv_arg);
4805 mono_mb_emit_stloc (mb, 0);
4807 /* emit valuetype conversion code */
4808 emit_struct_conv (mb, klass, TRUE);
4812 emit_struct_free (mb, klass, conv_arg);
4815 mono_mb_patch_branch (mb, pos);
4818 case MARSHAL_ACTION_CONV_RESULT:
4819 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4821 mono_mb_emit_stloc (mb, 3);
4825 /* load pointer to returned value type */
4826 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4827 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4828 /* store the address of the source into local variable 0 */
4829 mono_mb_emit_stloc (mb, 0);
4831 mono_mb_emit_ldloc_addr (mb, 3);
4832 mono_mb_emit_stloc (mb, 1);
4834 /* emit valuetype conversion code */
4835 emit_struct_conv (mb, klass, TRUE);
4838 case MARSHAL_ACTION_MANAGED_CONV_IN:
4839 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4840 klass->blittable || klass->enumtype) {
4845 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4847 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4851 mono_mb_emit_ldarg (mb, argnum);
4853 mono_mb_emit_ldarg_addr (mb, argnum);
4854 mono_mb_emit_stloc (mb, 0);
4857 mono_mb_emit_ldloc (mb, 0);
4858 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4861 mono_mb_emit_ldloc_addr (mb, conv_arg);
4862 mono_mb_emit_stloc (mb, 1);
4864 /* emit valuetype conversion code */
4865 emit_struct_conv (mb, klass, TRUE);
4868 mono_mb_patch_branch (mb, pos);
4871 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4872 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4873 klass->blittable || klass->enumtype) {
4877 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4880 /* Check for null */
4881 mono_mb_emit_ldarg (mb, argnum);
4882 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4885 mono_mb_emit_ldloc_addr (mb, conv_arg);
4886 mono_mb_emit_stloc (mb, 0);
4889 mono_mb_emit_ldarg (mb, argnum);
4890 mono_mb_emit_stloc (mb, 1);
4892 /* emit valuetype conversion code */
4893 emit_struct_conv (mb, klass, FALSE);
4895 mono_mb_patch_branch (mb, pos2);
4898 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4899 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4900 klass->blittable || klass->enumtype) {
4901 mono_mb_emit_stloc (mb, 3);
4906 /* load pointer to returned value type */
4907 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4908 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4910 /* store the address of the source into local variable 0 */
4911 mono_mb_emit_stloc (mb, 0);
4912 /* allocate space for the native struct and
4913 * store the address into dst_ptr */
4914 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4915 m->retobj_class = klass;
4916 g_assert (m->retobj_var);
4917 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4918 mono_mb_emit_byte (mb, CEE_CONV_I);
4919 mono_mb_emit_icall (mb, mono_marshal_alloc);
4920 mono_mb_emit_stloc (mb, 1);
4921 mono_mb_emit_ldloc (mb, 1);
4922 mono_mb_emit_stloc (mb, m->retobj_var);
4924 /* emit valuetype conversion code */
4925 emit_struct_conv (mb, klass, FALSE);
4929 g_assert_not_reached ();
4936 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4937 MonoMarshalSpec *spec,
4938 int conv_arg, MonoType **conv_arg_type,
4939 MarshalAction action)
4943 case MARSHAL_ACTION_CONV_IN:
4944 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4946 case MARSHAL_ACTION_MANAGED_CONV_IN:
4947 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4951 MonoMethodBuilder *mb = m->mb;
4952 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4953 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4957 case MARSHAL_ACTION_CONV_IN:
4958 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4959 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4962 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4965 mono_mb_emit_ldarg (mb, argnum);
4966 mono_mb_emit_byte (mb, CEE_LDIND_I);
4968 mono_mb_emit_ldarg (mb, argnum);
4972 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4973 mono_mb_emit_exception_marshal_directive (mb, msg);
4975 mono_mb_emit_icall (mb, conv_to_icall (conv));
4977 mono_mb_emit_stloc (mb, conv_arg);
4981 case MARSHAL_ACTION_CONV_OUT:
4982 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4984 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4985 mono_mb_emit_exception_marshal_directive (mb, msg);
4989 if (encoding == MONO_NATIVE_VBBYREFSTR) {
4990 static MonoMethod *m;
4993 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
4998 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
4999 mono_mb_emit_exception_marshal_directive (mb, msg);
5004 * Have to allocate a new string with the same length as the original, and
5005 * copy the contents of the buffer pointed to by CONV_ARG into it.
5007 g_assert (t->byref);
5008 mono_mb_emit_ldarg (mb, argnum);
5009 mono_mb_emit_ldloc (mb, conv_arg);
5010 mono_mb_emit_ldarg (mb, argnum);
5011 mono_mb_emit_byte (mb, CEE_LDIND_I);
5012 mono_mb_emit_managed_call (mb, m, NULL);
5013 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5014 mono_mb_emit_byte (mb, CEE_STIND_REF);
5015 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5016 mono_mb_emit_ldarg (mb, argnum);
5017 mono_mb_emit_ldloc (mb, conv_arg);
5018 mono_mb_emit_icall (mb, conv_to_icall (conv));
5019 mono_mb_emit_byte (mb, CEE_STIND_REF);
5024 mono_mb_emit_ldloc (mb, conv_arg);
5025 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5026 mono_mb_emit_icall (mb, mono_free_bstr);
5028 mono_mb_emit_icall (mb, mono_marshal_free);
5032 case MARSHAL_ACTION_PUSH:
5033 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5034 mono_mb_emit_ldloc_addr (mb, conv_arg);
5036 mono_mb_emit_ldloc (mb, conv_arg);
5039 case MARSHAL_ACTION_CONV_RESULT:
5040 mono_mb_emit_stloc (mb, 0);
5042 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5044 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5045 mono_mb_emit_exception_marshal_directive (mb, msg);
5049 mono_mb_emit_ldloc (mb, 0);
5050 mono_mb_emit_icall (mb, conv_to_icall (conv));
5051 mono_mb_emit_stloc (mb, 3);
5053 /* free the string */
5054 mono_mb_emit_ldloc (mb, 0);
5055 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5056 mono_mb_emit_icall (mb, mono_free_bstr);
5058 mono_mb_emit_icall (mb, mono_marshal_free);
5061 case MARSHAL_ACTION_MANAGED_CONV_IN:
5062 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5064 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5067 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5071 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5073 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5074 mono_mb_emit_exception_marshal_directive (mb, msg);
5078 mono_mb_emit_ldarg (mb, argnum);
5080 mono_mb_emit_byte (mb, CEE_LDIND_I);
5081 mono_mb_emit_icall (mb, conv_to_icall (conv));
5082 mono_mb_emit_stloc (mb, conv_arg);
5085 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5088 mono_mb_emit_ldarg (mb, argnum);
5089 mono_mb_emit_ldloc (mb, conv_arg);
5090 mono_mb_emit_icall (mb, conv_to_icall (conv));
5091 mono_mb_emit_byte (mb, CEE_STIND_I);
5096 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5097 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5098 /* We need to make a copy so the caller is able to free it */
5099 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5101 mono_mb_emit_icall (mb, conv_to_icall (conv));
5102 mono_mb_emit_stloc (mb, 3);
5106 g_assert_not_reached ();
5114 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5115 MonoMarshalSpec *spec, int conv_arg,
5116 MonoType **conv_arg_type, MarshalAction action)
5119 if (action == MARSHAL_ACTION_CONV_IN)
5120 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5122 MonoMethodBuilder *mb = m->mb;
5125 case MARSHAL_ACTION_CONV_IN: {
5126 MonoType *intptr_type;
5127 int dar_release_slot, pos;
5129 intptr_type = &mono_defaults.int_class->byval_arg;
5130 conv_arg = mono_mb_add_local (mb, intptr_type);
5131 *conv_arg_type = intptr_type;
5133 if (!sh_dangerous_add_ref)
5134 init_safe_handle ();
5136 mono_mb_emit_ldarg (mb, argnum);
5137 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5138 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5140 mono_mb_patch_branch (mb, pos);
5143 * My tests in show that ref SafeHandles are not really
5144 * passed as ref objects. Instead a NULL is passed as the
5147 mono_mb_emit_icon (mb, 0);
5148 mono_mb_emit_stloc (mb, conv_arg);
5152 /* Create local to hold the ref parameter to DangerousAddRef */
5153 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5155 /* set release = false; */
5156 mono_mb_emit_icon (mb, 0);
5157 mono_mb_emit_stloc (mb, dar_release_slot);
5159 /* safehandle.DangerousAddRef (ref release) */
5160 mono_mb_emit_ldarg (mb, argnum);
5161 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5162 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5164 /* Pull the handle field from SafeHandle */
5165 mono_mb_emit_ldarg (mb, argnum);
5166 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5167 mono_mb_emit_byte (mb, CEE_LDIND_I);
5168 mono_mb_emit_stloc (mb, conv_arg);
5173 case MARSHAL_ACTION_PUSH:
5175 mono_mb_emit_ldloc_addr (mb, conv_arg);
5177 mono_mb_emit_ldloc (mb, conv_arg);
5180 case MARSHAL_ACTION_CONV_OUT: {
5181 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5182 int dar_release_slot = conv_arg + 1;
5185 if (!sh_dangerous_release)
5186 init_safe_handle ();
5192 * My tests indicate that ref SafeHandles parameters are not actually
5193 * passed by ref, but instead a new Handle is created regardless of
5194 * whether a change happens in the unmanaged side.
5196 * Also, the Handle is created before calling into unmanaged code,
5197 * but we do not support that mechanism (getting to the original
5198 * handle) and it makes no difference where we create this
5200 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5202 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5205 /* refval = new SafeHandleDerived ()*/
5206 mono_mb_emit_ldarg (mb, argnum);
5207 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5208 mono_mb_emit_byte (mb, CEE_STIND_REF);
5210 /* refval.handle = returned_handle */
5211 mono_mb_emit_ldarg (mb, argnum);
5212 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5213 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5214 mono_mb_emit_ldloc (mb, conv_arg);
5215 mono_mb_emit_byte (mb, CEE_STIND_I);
5217 mono_mb_emit_ldloc (mb, dar_release_slot);
5218 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5219 mono_mb_emit_ldarg (mb, argnum);
5220 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5221 mono_mb_patch_branch (mb, label_next);
5226 case MARSHAL_ACTION_CONV_RESULT: {
5227 MonoMethod *ctor = NULL;
5228 int intptr_handle_slot;
5230 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5231 mono_mb_emit_byte (mb, CEE_POP);
5232 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5236 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5238 mono_mb_emit_byte (mb, CEE_POP);
5239 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5242 /* Store the IntPtr results into a local */
5243 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5244 mono_mb_emit_stloc (mb, intptr_handle_slot);
5246 /* Create return value */
5247 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5248 mono_mb_emit_stloc (mb, 3);
5250 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5251 mono_mb_emit_ldloc (mb, 3);
5252 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5253 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5254 mono_mb_emit_byte (mb, CEE_STIND_I);
5258 case MARSHAL_ACTION_MANAGED_CONV_IN:
5259 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5262 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5263 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5266 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5267 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5270 printf ("Unhandled case for MarshalAction: %d\n", action);
5278 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5279 MonoMarshalSpec *spec, int conv_arg,
5280 MonoType **conv_arg_type, MarshalAction action)
5283 if (action == MARSHAL_ACTION_CONV_IN)
5284 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5286 MonoMethodBuilder *mb = m->mb;
5289 case MARSHAL_ACTION_CONV_IN: {
5290 MonoType *intptr_type;
5292 intptr_type = &mono_defaults.int_class->byval_arg;
5293 conv_arg = mono_mb_add_local (mb, intptr_type);
5294 *conv_arg_type = intptr_type;
5297 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5298 mono_mb_emit_exception_marshal_directive (mb, msg);
5301 mono_mb_emit_ldarg_addr (mb, argnum);
5302 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5303 mono_mb_emit_byte (mb, CEE_ADD);
5304 mono_mb_emit_byte (mb, CEE_LDIND_I);
5305 mono_mb_emit_stloc (mb, conv_arg);
5309 case MARSHAL_ACTION_PUSH:
5310 mono_mb_emit_ldloc (mb, conv_arg);
5313 case MARSHAL_ACTION_CONV_OUT: {
5314 /* no resource release required */
5318 case MARSHAL_ACTION_CONV_RESULT: {
5319 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5320 mono_mb_emit_exception_marshal_directive (mb, msg);
5324 case MARSHAL_ACTION_MANAGED_CONV_IN:
5325 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5328 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5329 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5332 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5333 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5336 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5344 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5345 MonoMarshalSpec *spec,
5346 int conv_arg, MonoType **conv_arg_type,
5347 MarshalAction action)
5350 if (action == MARSHAL_ACTION_CONV_IN)
5351 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5353 MonoMethodBuilder *mb = m->mb;
5354 MonoClass *klass = mono_class_from_mono_type (t);
5358 case MARSHAL_ACTION_CONV_IN:
5359 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5360 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5362 m->orig_conv_args [argnum] = 0;
5364 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5365 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5366 mono_mb_emit_exception_marshal_directive (mb, msg);
5370 if (klass->delegate) {
5372 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5373 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5374 mono_mb_emit_exception_marshal_directive (mb, msg);
5376 mono_mb_emit_byte (mb, CEE_LDNULL);
5377 mono_mb_emit_stloc (mb, conv_arg);
5379 mono_mb_emit_ldarg (mb, argnum);
5380 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5381 mono_mb_emit_stloc (mb, conv_arg);
5383 } else if (klass == mono_defaults.stringbuilder_class) {
5384 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5385 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5389 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5390 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5391 mono_mb_emit_exception_marshal_directive (mb, msg);
5397 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5401 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5402 mono_mb_emit_exception_marshal_directive (mb, msg);
5406 mono_mb_emit_ldarg (mb, argnum);
5408 mono_mb_emit_byte (mb, CEE_LDIND_I);
5410 mono_mb_emit_icall (mb, conv_to_icall (conv));
5411 mono_mb_emit_stloc (mb, conv_arg);
5412 } else if (klass->blittable) {
5413 mono_mb_emit_byte (mb, CEE_LDNULL);
5414 mono_mb_emit_stloc (mb, conv_arg);
5416 mono_mb_emit_ldarg (mb, argnum);
5417 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5419 mono_mb_emit_ldarg (mb, argnum);
5420 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5421 mono_mb_emit_stloc (mb, conv_arg);
5423 mono_mb_patch_branch (mb, pos);
5426 mono_mb_emit_byte (mb, CEE_LDNULL);
5427 mono_mb_emit_stloc (mb, conv_arg);
5430 /* we dont need any conversions for out parameters */
5431 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5434 mono_mb_emit_ldarg (mb, argnum);
5435 mono_mb_emit_byte (mb, CEE_LDIND_I);
5438 mono_mb_emit_ldarg (mb, argnum);
5439 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5440 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5443 /* store the address of the source into local variable 0 */
5444 mono_mb_emit_stloc (mb, 0);
5445 mono_mb_emit_ldloc (mb, 0);
5446 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5448 /* allocate space for the native struct and store the address */
5449 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5450 mono_mb_emit_byte (mb, CEE_PREFIX1);
5451 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5452 mono_mb_emit_stloc (mb, conv_arg);
5455 /* Need to store the original buffer so we can free it later */
5456 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5457 mono_mb_emit_ldloc (mb, conv_arg);
5458 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5461 /* set the src_ptr */
5462 mono_mb_emit_ldloc (mb, 0);
5463 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5464 mono_mb_emit_stloc (mb, 0);
5467 mono_mb_emit_ldloc (mb, conv_arg);
5468 mono_mb_emit_stloc (mb, 1);
5470 /* emit valuetype conversion code */
5471 emit_struct_conv (mb, klass, FALSE);
5473 mono_mb_patch_branch (mb, pos);
5477 case MARSHAL_ACTION_CONV_OUT:
5478 if (klass == mono_defaults.stringbuilder_class) {
5480 MonoMarshalNative encoding;
5481 MonoMarshalConv conv;
5483 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5484 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5486 g_assert (encoding != -1);
5489 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5493 mono_mb_emit_ldarg (mb, argnum);
5494 mono_mb_emit_ldloc (mb, conv_arg);
5497 case MONO_NATIVE_LPWSTR:
5498 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5500 case MONO_NATIVE_LPSTR:
5501 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5504 g_assert_not_reached ();
5507 mono_mb_emit_byte (mb, CEE_STIND_REF);
5509 mono_mb_emit_ldarg (mb, argnum);
5510 mono_mb_emit_ldloc (mb, conv_arg);
5512 mono_mb_emit_icall (mb, conv_to_icall (conv));
5516 mono_mb_emit_ldloc (mb, conv_arg);
5517 mono_mb_emit_icall (mb, mono_marshal_free);
5522 if (klass->delegate) {
5524 mono_mb_emit_ldarg (mb, argnum);
5525 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5526 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5527 mono_mb_emit_ldloc (mb, conv_arg);
5528 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5529 mono_mb_emit_byte (mb, CEE_STIND_REF);
5534 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5535 /* allocate a new object */
5536 mono_mb_emit_ldarg (mb, argnum);
5537 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5538 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5539 mono_mb_emit_byte (mb, CEE_STIND_REF);
5542 /* dst = *argument */
5543 mono_mb_emit_ldarg (mb, argnum);
5546 mono_mb_emit_byte (mb, CEE_LDIND_I);
5548 mono_mb_emit_stloc (mb, 1);
5550 mono_mb_emit_ldloc (mb, 1);
5551 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5553 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5554 mono_mb_emit_ldloc (mb, 1);
5555 mono_mb_emit_icon (mb, sizeof (MonoObject));
5556 mono_mb_emit_byte (mb, CEE_ADD);
5557 mono_mb_emit_stloc (mb, 1);
5559 /* src = tmp_locals [i] */
5560 mono_mb_emit_ldloc (mb, conv_arg);
5561 mono_mb_emit_stloc (mb, 0);
5563 /* emit valuetype conversion code */
5564 emit_struct_conv (mb, klass, TRUE);
5566 /* Free the structure returned by the native code */
5567 emit_struct_free (mb, klass, conv_arg);
5569 if (m->orig_conv_args [argnum]) {
5571 * If the native function changed the pointer, then free
5572 * the original structure plus the new pointer.
5574 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5575 mono_mb_emit_ldloc (mb, conv_arg);
5576 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5578 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5579 g_assert (m->orig_conv_args [argnum]);
5581 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5584 mono_mb_emit_ldloc (mb, conv_arg);
5585 mono_mb_emit_icall (mb, mono_marshal_free);
5587 mono_mb_patch_branch (mb, pos2);
5591 /* Free the original structure passed to native code */
5592 emit_struct_free (mb, klass, conv_arg);
5594 mono_mb_patch_branch (mb, pos);
5597 case MARSHAL_ACTION_PUSH:
5599 mono_mb_emit_ldloc_addr (mb, conv_arg);
5601 mono_mb_emit_ldloc (mb, conv_arg);
5604 case MARSHAL_ACTION_CONV_RESULT:
5605 if (klass->delegate) {
5606 g_assert (!t->byref);
5607 mono_mb_emit_stloc (mb, 0);
5608 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5609 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5610 mono_mb_emit_ldloc (mb, 0);
5611 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5612 mono_mb_emit_stloc (mb, 3);
5615 mono_mb_emit_stloc (mb, 0);
5617 /* Make a copy since emit_conv modifies local 0 */
5618 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5619 mono_mb_emit_ldloc (mb, 0);
5620 mono_mb_emit_stloc (mb, loc);
5622 mono_mb_emit_byte (mb, CEE_LDNULL);
5623 mono_mb_emit_stloc (mb, 3);
5625 mono_mb_emit_ldloc (mb, 0);
5626 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5628 /* allocate result object */
5630 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5631 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5632 mono_mb_emit_stloc (mb, 3);
5636 mono_mb_emit_ldloc (mb, 3);
5637 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5638 mono_mb_emit_stloc (mb, 1);
5640 /* emit conversion code */
5641 emit_struct_conv (mb, klass, TRUE);
5643 emit_struct_free (mb, klass, loc);
5645 /* Free the pointer allocated by unmanaged code */
5646 mono_mb_emit_ldloc (mb, loc);
5647 mono_mb_emit_icall (mb, mono_marshal_free);
5648 mono_mb_patch_branch (mb, pos);
5652 case MARSHAL_ACTION_MANAGED_CONV_IN:
5653 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5655 if (klass->delegate) {
5656 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5657 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5658 mono_mb_emit_ldarg (mb, argnum);
5660 mono_mb_emit_byte (mb, CEE_LDIND_I);
5661 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5662 mono_mb_emit_stloc (mb, conv_arg);
5666 if (klass == mono_defaults.stringbuilder_class) {
5667 MonoMarshalNative encoding;
5669 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5672 g_assert (encoding == MONO_NATIVE_LPSTR);
5674 g_assert (!t->byref);
5675 g_assert (encoding != -1);
5677 mono_mb_emit_ldarg (mb, argnum);
5678 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5679 mono_mb_emit_stloc (mb, conv_arg);
5683 /* The class can not have an automatic layout */
5684 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5685 mono_mb_emit_auto_layout_exception (mb, klass);
5689 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5690 mono_mb_emit_byte (mb, CEE_LDNULL);
5691 mono_mb_emit_stloc (mb, conv_arg);
5696 mono_mb_emit_ldarg (mb, argnum);
5700 /* Check for NULL and raise an exception */
5701 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5703 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5705 mono_mb_patch_branch (mb, pos2);
5706 mono_mb_emit_ldarg (mb, argnum);
5707 mono_mb_emit_byte (mb, CEE_LDIND_I);
5710 mono_mb_emit_stloc (mb, 0);
5712 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5713 mono_mb_emit_stloc (mb, conv_arg);
5715 mono_mb_emit_ldloc (mb, 0);
5716 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5718 /* Create and set dst */
5719 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5720 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5721 mono_mb_emit_stloc (mb, conv_arg);
5722 mono_mb_emit_ldloc (mb, conv_arg);
5723 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5724 mono_mb_emit_stloc (mb, 1);
5726 /* emit valuetype conversion code */
5727 emit_struct_conv (mb, klass, TRUE);
5729 mono_mb_patch_branch (mb, pos);
5732 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5733 if (klass->delegate) {
5735 mono_mb_emit_ldarg (mb, argnum);
5736 mono_mb_emit_ldloc (mb, conv_arg);
5737 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5738 mono_mb_emit_byte (mb, CEE_STIND_I);
5744 /* Check for null */
5745 mono_mb_emit_ldloc (mb, conv_arg);
5746 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5747 mono_mb_emit_ldarg (mb, argnum);
5748 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5749 mono_mb_emit_byte (mb, CEE_STIND_REF);
5750 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5752 mono_mb_patch_branch (mb, pos);
5755 mono_mb_emit_ldloc (mb, conv_arg);
5756 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5757 mono_mb_emit_stloc (mb, 0);
5759 /* Allocate and set dest */
5760 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5761 mono_mb_emit_byte (mb, CEE_CONV_I);
5762 mono_mb_emit_icall (mb, mono_marshal_alloc);
5763 mono_mb_emit_stloc (mb, 1);
5765 /* Update argument pointer */
5766 mono_mb_emit_ldarg (mb, argnum);
5767 mono_mb_emit_ldloc (mb, 1);
5768 mono_mb_emit_byte (mb, CEE_STIND_I);
5770 /* emit valuetype conversion code */
5771 emit_struct_conv (mb, klass, FALSE);
5773 mono_mb_patch_branch (mb, pos2);
5774 } else if (klass == mono_defaults.stringbuilder_class) {
5775 // FIXME: What to do here ?
5777 /* byval [Out] marshalling */
5779 /* FIXME: Handle null */
5782 mono_mb_emit_ldloc (mb, conv_arg);
5783 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5784 mono_mb_emit_stloc (mb, 0);
5787 mono_mb_emit_ldarg (mb, argnum);
5788 mono_mb_emit_stloc (mb, 1);
5790 /* emit valuetype conversion code */
5791 emit_struct_conv (mb, klass, FALSE);
5795 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5796 if (klass->delegate) {
5797 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5798 mono_mb_emit_stloc (mb, 3);
5802 /* The class can not have an automatic layout */
5803 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5804 mono_mb_emit_auto_layout_exception (mb, klass);
5808 mono_mb_emit_stloc (mb, 0);
5809 /* Check for null */
5810 mono_mb_emit_ldloc (mb, 0);
5811 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5812 mono_mb_emit_byte (mb, CEE_LDNULL);
5813 mono_mb_emit_stloc (mb, 3);
5814 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5816 mono_mb_patch_branch (mb, pos);
5819 mono_mb_emit_ldloc (mb, 0);
5820 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5821 mono_mb_emit_stloc (mb, 0);
5823 /* Allocate and set dest */
5824 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5825 mono_mb_emit_byte (mb, CEE_CONV_I);
5826 mono_mb_emit_icall (mb, mono_marshal_alloc);
5827 mono_mb_emit_byte (mb, CEE_DUP);
5828 mono_mb_emit_stloc (mb, 1);
5829 mono_mb_emit_stloc (mb, 3);
5831 emit_struct_conv (mb, klass, FALSE);
5833 mono_mb_patch_branch (mb, pos2);
5837 g_assert_not_reached ();
5848 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5849 MonoMarshalSpec *spec,
5850 int conv_arg, MonoType **conv_arg_type,
5851 MarshalAction action)
5853 MonoMethodBuilder *mb = m->mb;
5854 static MonoMethod *get_object_for_native_variant = NULL;
5855 static MonoMethod *get_native_variant_for_object = NULL;
5857 if (!get_object_for_native_variant)
5858 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5859 g_assert (get_object_for_native_variant);
5861 if (!get_native_variant_for_object)
5862 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5863 g_assert (get_native_variant_for_object);
5866 case MARSHAL_ACTION_CONV_IN: {
5867 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5870 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5872 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5874 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5877 mono_mb_emit_ldarg (mb, argnum);
5879 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5880 mono_mb_emit_ldloc_addr (mb, conv_arg);
5881 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5885 case MARSHAL_ACTION_CONV_OUT: {
5886 static MonoMethod *variant_clear = NULL;
5889 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5890 g_assert (variant_clear);
5893 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5894 mono_mb_emit_ldarg (mb, argnum);
5895 mono_mb_emit_ldloc_addr (mb, conv_arg);
5896 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5897 mono_mb_emit_byte (mb, CEE_STIND_REF);
5900 mono_mb_emit_ldloc_addr (mb, conv_arg);
5901 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5905 case MARSHAL_ACTION_PUSH:
5907 mono_mb_emit_ldloc_addr (mb, conv_arg);
5909 mono_mb_emit_ldloc (mb, conv_arg);
5912 case MARSHAL_ACTION_CONV_RESULT: {
5913 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5914 mono_mb_emit_exception_marshal_directive (mb, msg);
5918 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5919 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5922 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5924 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5926 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5930 mono_mb_emit_ldarg (mb, argnum);
5932 mono_mb_emit_ldarg_addr (mb, argnum);
5933 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5934 mono_mb_emit_stloc (mb, conv_arg);
5938 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5939 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5940 mono_mb_emit_ldloc (mb, conv_arg);
5941 mono_mb_emit_ldarg (mb, argnum);
5942 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5947 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5948 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5949 mono_mb_emit_exception_marshal_directive (mb, msg);
5954 g_assert_not_reached ();
5960 #endif /* DISABLE_COM */
5961 #endif /* DISABLE_JIT */
5964 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5966 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5967 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5969 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5971 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
5983 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5984 MonoMarshalSpec *spec,
5985 int conv_arg, MonoType **conv_arg_type,
5986 MarshalAction action)
5990 case MARSHAL_ACTION_CONV_IN:
5991 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5993 case MARSHAL_ACTION_MANAGED_CONV_IN:
5994 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5998 MonoMethodBuilder *mb = m->mb;
5999 MonoClass *klass = mono_class_from_mono_type (t);
6000 gboolean need_convert, need_free;
6001 MonoMarshalNative encoding;
6003 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6006 case MARSHAL_ACTION_CONV_IN:
6007 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6008 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6010 if (klass->element_class->blittable) {
6011 mono_mb_emit_ldarg (mb, argnum);
6013 mono_mb_emit_byte (mb, CEE_LDIND_I);
6014 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6015 mono_mb_emit_stloc (mb, conv_arg);
6018 guint32 label1, label2, label3;
6019 int index_var, src_var, dest_ptr, esize;
6020 MonoMarshalConv conv;
6021 gboolean is_string = FALSE;
6023 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6025 eklass = klass->element_class;
6027 if (eklass == mono_defaults.string_class) {
6029 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6031 else if (eklass == mono_defaults.stringbuilder_class) {
6033 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6036 conv = (MonoMarshalConv)-1;
6038 if (is_string && conv == -1) {
6039 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6040 mono_mb_emit_exception_marshal_directive (mb, msg);
6044 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6045 mono_mb_emit_ldarg (mb, argnum);
6047 mono_mb_emit_byte (mb, CEE_LDIND_I);
6048 mono_mb_emit_stloc (mb, src_var);
6051 mono_mb_emit_ldloc (mb, src_var);
6052 mono_mb_emit_stloc (mb, conv_arg);
6053 mono_mb_emit_ldloc (mb, src_var);
6054 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6057 esize = sizeof (gpointer);
6058 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6059 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6061 esize = mono_class_native_size (eklass, NULL);
6063 /* allocate space for the native struct and store the address */
6064 mono_mb_emit_icon (mb, esize);
6065 mono_mb_emit_ldloc (mb, src_var);
6066 mono_mb_emit_byte (mb, CEE_LDLEN);
6068 if (eklass == mono_defaults.string_class) {
6069 /* Make the array bigger for the terminating null */
6070 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6071 mono_mb_emit_byte (mb, CEE_ADD);
6073 mono_mb_emit_byte (mb, CEE_MUL);
6074 mono_mb_emit_byte (mb, CEE_PREFIX1);
6075 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6076 mono_mb_emit_stloc (mb, conv_arg);
6078 mono_mb_emit_ldloc (mb, conv_arg);
6079 mono_mb_emit_stloc (mb, dest_ptr);
6081 /* Emit marshalling loop */
6082 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6083 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6084 mono_mb_emit_stloc (mb, index_var);
6085 label2 = mono_mb_get_label (mb);
6086 mono_mb_emit_ldloc (mb, index_var);
6087 mono_mb_emit_ldloc (mb, src_var);
6088 mono_mb_emit_byte (mb, CEE_LDLEN);
6089 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6091 /* Emit marshalling code */
6094 mono_mb_emit_ldloc (mb, dest_ptr);
6095 mono_mb_emit_ldloc (mb, src_var);
6096 mono_mb_emit_ldloc (mb, index_var);
6097 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6098 mono_mb_emit_icall (mb, conv_to_icall (conv));
6099 mono_mb_emit_byte (mb, CEE_STIND_I);
6101 /* set the src_ptr */
6102 mono_mb_emit_ldloc (mb, src_var);
6103 mono_mb_emit_ldloc (mb, index_var);
6104 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6105 mono_mb_emit_stloc (mb, 0);
6108 mono_mb_emit_ldloc (mb, dest_ptr);
6109 mono_mb_emit_stloc (mb, 1);
6111 /* emit valuetype conversion code */
6112 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6115 mono_mb_emit_add_to_local (mb, index_var, 1);
6116 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6118 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6120 mono_mb_patch_branch (mb, label3);
6122 if (eklass == mono_defaults.string_class) {
6123 /* Null terminate */
6124 mono_mb_emit_ldloc (mb, dest_ptr);
6125 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6126 mono_mb_emit_byte (mb, CEE_STIND_REF);
6129 mono_mb_patch_branch (mb, label1);
6134 case MARSHAL_ACTION_CONV_OUT:
6135 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6136 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);
6137 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6140 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6141 int param_num = spec->data.array_data.param_num;
6142 MonoType *param_type;
6144 param_type = m->sig->params [param_num];
6146 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6147 char *msg = g_strdup ("Not implemented.");
6148 mono_mb_emit_exception_marshal_directive (mb, msg);
6153 mono_mb_emit_ldarg (mb, argnum);
6155 /* Create the managed array */
6156 mono_mb_emit_ldarg (mb, param_num);
6157 if (m->sig->params [param_num]->byref)
6158 // FIXME: Support other types
6159 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6160 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6161 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6162 /* Store into argument */
6163 mono_mb_emit_byte (mb, CEE_STIND_I);
6167 if (need_convert || need_free) {
6168 /* FIXME: Optimize blittable case */
6170 guint32 label1, label2, label3;
6171 int index_var, src_ptr, loc, esize;
6173 eklass = klass->element_class;
6174 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6175 esize = sizeof (gpointer);
6176 else if (eklass == mono_defaults.char_class)
6177 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6179 esize = mono_class_native_size (eklass, NULL);
6180 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6181 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6184 mono_mb_emit_ldarg (mb, argnum);
6186 mono_mb_emit_byte (mb, CEE_LDIND_I);
6187 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6189 mono_mb_emit_ldloc (mb, conv_arg);
6190 mono_mb_emit_stloc (mb, src_ptr);
6192 /* Emit marshalling loop */
6193 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6194 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6195 mono_mb_emit_stloc (mb, index_var);
6196 label2 = mono_mb_get_label (mb);
6197 mono_mb_emit_ldloc (mb, index_var);
6198 mono_mb_emit_ldarg (mb, argnum);
6200 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6201 mono_mb_emit_byte (mb, CEE_LDLEN);
6202 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6204 /* Emit marshalling code */
6206 if (eklass == mono_defaults.stringbuilder_class) {
6207 gboolean need_free2;
6208 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6210 g_assert (conv != -1);
6213 mono_mb_emit_ldarg (mb, argnum);
6215 mono_mb_emit_byte (mb, CEE_LDIND_I);
6216 mono_mb_emit_ldloc (mb, index_var);
6217 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6220 mono_mb_emit_ldloc (mb, src_ptr);
6221 mono_mb_emit_byte (mb, CEE_LDIND_I);
6223 mono_mb_emit_icall (mb, conv_to_icall (conv));
6227 mono_mb_emit_ldloc (mb, src_ptr);
6228 mono_mb_emit_byte (mb, CEE_LDIND_I);
6230 mono_mb_emit_icall (mb, mono_marshal_free);
6233 else if (eklass == mono_defaults.string_class) {
6236 mono_mb_emit_ldloc (mb, src_ptr);
6237 mono_mb_emit_byte (mb, CEE_LDIND_I);
6239 mono_mb_emit_icall (mb, mono_marshal_free);
6244 /* set the src_ptr */
6245 mono_mb_emit_ldloc (mb, src_ptr);
6246 mono_mb_emit_stloc (mb, 0);
6249 mono_mb_emit_ldarg (mb, argnum);
6251 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6252 mono_mb_emit_ldloc (mb, index_var);
6253 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6254 mono_mb_emit_stloc (mb, 1);
6256 /* emit valuetype conversion code */
6257 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6261 mono_mb_emit_ldloc (mb, src_ptr);
6262 mono_mb_emit_stloc (mb, loc);
6263 mono_mb_emit_ldloc (mb, loc);
6265 emit_struct_free (mb, eklass, loc);
6269 mono_mb_emit_add_to_local (mb, index_var, 1);
6270 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6272 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6274 mono_mb_patch_branch (mb, label1);
6275 mono_mb_patch_branch (mb, label3);
6278 if (klass->element_class->blittable) {
6279 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6281 mono_mb_emit_ldarg (mb, argnum);
6283 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6284 mono_mb_emit_ldloc (mb, conv_arg);
6285 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6290 case MARSHAL_ACTION_PUSH:
6292 mono_mb_emit_ldloc_addr (mb, conv_arg);
6294 mono_mb_emit_ldloc (mb, conv_arg);
6297 case MARSHAL_ACTION_CONV_RESULT:
6298 /* fixme: we need conversions here */
6299 mono_mb_emit_stloc (mb, 3);
6302 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6304 guint32 label1, label2, label3;
6305 int index_var, src_ptr, esize, param_num, num_elem;
6306 MonoMarshalConv conv;
6307 gboolean is_string = FALSE;
6309 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6310 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6313 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6314 mono_mb_emit_exception_marshal_directive (mb, msg);
6318 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6319 mono_mb_emit_exception_marshal_directive (mb, msg);
6322 if (spec->native != MONO_NATIVE_LPARRAY) {
6323 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6324 mono_mb_emit_exception_marshal_directive (mb, msg);
6328 /* FIXME: t is from the method which is wrapped, not the delegate type */
6329 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6331 param_num = spec->data.array_data.param_num;
6332 num_elem = spec->data.array_data.num_elem;
6333 if (spec->data.array_data.elem_mult == 0)
6334 /* param_num is not specified */
6337 if (param_num == -1) {
6338 if (num_elem <= 0) {
6339 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6340 mono_mb_emit_exception_marshal_directive (mb, msg);
6345 /* FIXME: Optimize blittable case */
6347 eklass = klass->element_class;
6348 if (eklass == mono_defaults.string_class) {
6350 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6352 else if (eklass == mono_defaults.stringbuilder_class) {
6354 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6357 conv = (MonoMarshalConv)-1;
6359 mono_marshal_load_type_info (eklass);
6362 esize = sizeof (gpointer);
6364 esize = mono_class_native_size (eklass, NULL);
6365 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6367 mono_mb_emit_byte (mb, CEE_LDNULL);
6368 mono_mb_emit_stloc (mb, conv_arg);
6370 /* Check param index */
6371 if (param_num != -1) {
6372 if (param_num >= m->sig->param_count) {
6373 char *msg = g_strdup ("Array size control parameter index is out of range.");
6374 mono_mb_emit_exception_marshal_directive (mb, msg);
6377 switch (m->sig->params [param_num]->type) {
6390 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6391 mono_mb_emit_exception_marshal_directive (mb, msg);
6398 mono_mb_emit_ldarg (mb, argnum);
6399 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6401 mono_mb_emit_ldarg (mb, argnum);
6402 mono_mb_emit_stloc (mb, src_ptr);
6404 /* Create managed array */
6406 * The LPArray marshalling spec says that sometimes param_num starts
6407 * from 1, sometimes it starts from 0. But MS seems to allways start
6411 if (param_num == -1) {
6412 mono_mb_emit_icon (mb, num_elem);
6414 mono_mb_emit_ldarg (mb, param_num);
6416 mono_mb_emit_icon (mb, num_elem);
6417 mono_mb_emit_byte (mb, CEE_ADD);
6419 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6422 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6423 mono_mb_emit_stloc (mb, conv_arg);
6425 if (eklass->blittable) {
6426 mono_mb_emit_ldloc (mb, conv_arg);
6427 mono_mb_emit_byte (mb, CEE_CONV_I);
6428 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6429 mono_mb_emit_byte (mb, CEE_ADD);
6430 mono_mb_emit_ldarg (mb, argnum);
6431 mono_mb_emit_ldloc (mb, conv_arg);
6432 mono_mb_emit_byte (mb, CEE_LDLEN);
6433 mono_mb_emit_icon (mb, esize);
6434 mono_mb_emit_byte (mb, CEE_MUL);
6435 mono_mb_emit_byte (mb, CEE_PREFIX1);
6436 mono_mb_emit_byte (mb, CEE_CPBLK);
6440 /* Emit marshalling loop */
6441 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6442 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6443 mono_mb_emit_stloc (mb, index_var);
6444 label2 = mono_mb_get_label (mb);
6445 mono_mb_emit_ldloc (mb, index_var);
6446 mono_mb_emit_ldloc (mb, conv_arg);
6447 mono_mb_emit_byte (mb, CEE_LDLEN);
6448 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6450 /* Emit marshalling code */
6452 g_assert (conv != -1);
6454 mono_mb_emit_ldloc (mb, conv_arg);
6455 mono_mb_emit_ldloc (mb, index_var);
6457 mono_mb_emit_ldloc (mb, src_ptr);
6458 mono_mb_emit_byte (mb, CEE_LDIND_I);
6460 mono_mb_emit_icall (mb, conv_to_icall (conv));
6461 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6464 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6465 mono_mb_emit_exception_marshal_directive (mb, msg);
6469 mono_mb_emit_add_to_local (mb, index_var, 1);
6470 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6472 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6474 mono_mb_patch_branch (mb, label1);
6475 mono_mb_patch_branch (mb, label3);
6479 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6481 guint32 label1, label2, label3;
6482 int index_var, dest_ptr, esize, param_num, num_elem;
6483 MonoMarshalConv conv;
6484 gboolean is_string = FALSE;
6487 /* Already handled in CONV_IN */
6490 /* These are already checked in CONV_IN */
6491 g_assert (!t->byref);
6492 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6493 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6495 param_num = spec->data.array_data.param_num;
6496 num_elem = spec->data.array_data.num_elem;
6498 if (spec->data.array_data.elem_mult == 0)
6499 /* param_num is not specified */
6502 if (param_num == -1) {
6503 if (num_elem <= 0) {
6504 g_assert_not_reached ();
6508 /* FIXME: Optimize blittable case */
6510 eklass = klass->element_class;
6511 if (eklass == mono_defaults.string_class) {
6513 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6515 else if (eklass == mono_defaults.stringbuilder_class) {
6517 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6520 conv = (MonoMarshalConv)-1;
6522 mono_marshal_load_type_info (eklass);
6525 esize = sizeof (gpointer);
6527 esize = mono_class_native_size (eklass, NULL);
6529 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6532 mono_mb_emit_ldloc (mb, conv_arg);
6533 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6535 mono_mb_emit_ldarg (mb, argnum);
6536 mono_mb_emit_stloc (mb, dest_ptr);
6538 if (eklass->blittable) {
6540 mono_mb_emit_ldarg (mb, argnum);
6542 mono_mb_emit_ldloc (mb, conv_arg);
6543 mono_mb_emit_byte (mb, CEE_CONV_I);
6544 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6545 mono_mb_emit_byte (mb, CEE_ADD);
6547 mono_mb_emit_ldloc (mb, conv_arg);
6548 mono_mb_emit_byte (mb, CEE_LDLEN);
6549 mono_mb_emit_icon (mb, esize);
6550 mono_mb_emit_byte (mb, CEE_MUL);
6551 mono_mb_emit_byte (mb, CEE_PREFIX1);
6552 mono_mb_emit_byte (mb, CEE_CPBLK);
6556 /* Emit marshalling loop */
6557 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6558 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6559 mono_mb_emit_stloc (mb, index_var);
6560 label2 = mono_mb_get_label (mb);
6561 mono_mb_emit_ldloc (mb, index_var);
6562 mono_mb_emit_ldloc (mb, conv_arg);
6563 mono_mb_emit_byte (mb, CEE_LDLEN);
6564 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6566 /* Emit marshalling code */
6568 g_assert (conv != -1);
6571 mono_mb_emit_ldloc (mb, dest_ptr);
6574 mono_mb_emit_ldloc (mb, conv_arg);
6575 mono_mb_emit_ldloc (mb, index_var);
6577 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6579 mono_mb_emit_icall (mb, conv_to_icall (conv));
6580 mono_mb_emit_byte (mb, CEE_STIND_I);
6583 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6584 mono_mb_emit_exception_marshal_directive (mb, msg);
6588 mono_mb_emit_add_to_local (mb, index_var, 1);
6589 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6591 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6593 mono_mb_patch_branch (mb, label1);
6594 mono_mb_patch_branch (mb, label3);
6598 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6600 guint32 label1, label2, label3;
6601 int index_var, src, dest, esize;
6602 MonoMarshalConv conv = (MonoMarshalConv)-1;
6603 gboolean is_string = FALSE;
6605 g_assert (!t->byref);
6607 eklass = klass->element_class;
6609 mono_marshal_load_type_info (eklass);
6611 if (eklass == mono_defaults.string_class) {
6613 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6616 g_assert_not_reached ();
6620 esize = sizeof (gpointer);
6621 else if (eklass == mono_defaults.char_class)
6622 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6624 esize = mono_class_native_size (eklass, NULL);
6626 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6627 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6629 mono_mb_emit_stloc (mb, src);
6630 mono_mb_emit_ldloc (mb, src);
6631 mono_mb_emit_stloc (mb, 3);
6633 /* Check for null */
6634 mono_mb_emit_ldloc (mb, src);
6635 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6637 /* Allocate native array */
6638 mono_mb_emit_icon (mb, esize);
6639 mono_mb_emit_ldloc (mb, src);
6640 mono_mb_emit_byte (mb, CEE_LDLEN);
6642 if (eklass == mono_defaults.string_class) {
6643 /* Make the array bigger for the terminating null */
6644 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6645 mono_mb_emit_byte (mb, CEE_ADD);
6647 mono_mb_emit_byte (mb, CEE_MUL);
6648 mono_mb_emit_icall (mb, mono_marshal_alloc);
6649 mono_mb_emit_stloc (mb, dest);
6650 mono_mb_emit_ldloc (mb, dest);
6651 mono_mb_emit_stloc (mb, 3);
6653 /* Emit marshalling loop */
6654 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6655 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6656 mono_mb_emit_stloc (mb, index_var);
6657 label2 = mono_mb_get_label (mb);
6658 mono_mb_emit_ldloc (mb, index_var);
6659 mono_mb_emit_ldloc (mb, src);
6660 mono_mb_emit_byte (mb, CEE_LDLEN);
6661 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6663 /* Emit marshalling code */
6665 g_assert (conv != -1);
6668 mono_mb_emit_ldloc (mb, dest);
6671 mono_mb_emit_ldloc (mb, src);
6672 mono_mb_emit_ldloc (mb, index_var);
6674 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6676 mono_mb_emit_icall (mb, conv_to_icall (conv));
6677 mono_mb_emit_byte (mb, CEE_STIND_I);
6680 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6681 mono_mb_emit_exception_marshal_directive (mb, msg);
6685 mono_mb_emit_add_to_local (mb, index_var, 1);
6686 mono_mb_emit_add_to_local (mb, dest, esize);
6688 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6690 mono_mb_patch_branch (mb, label3);
6691 mono_mb_patch_branch (mb, label1);
6695 g_assert_not_reached ();
6702 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6705 return &mono_defaults.int32_class->byval_arg;
6707 switch (spec->native) {
6708 case MONO_NATIVE_I1:
6709 case MONO_NATIVE_U1:
6710 return &mono_defaults.byte_class->byval_arg;
6711 case MONO_NATIVE_VARIANTBOOL:
6712 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6713 return &mono_defaults.int16_class->byval_arg;
6714 case MONO_NATIVE_BOOLEAN:
6715 return &mono_defaults.int32_class->byval_arg;
6717 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6718 return &mono_defaults.int32_class->byval_arg;
6724 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6726 MonoClass* conv_arg_class = mono_defaults.int32_class;
6728 switch (spec->native) {
6729 case MONO_NATIVE_I1:
6730 case MONO_NATIVE_U1:
6731 conv_arg_class = mono_defaults.byte_class;
6732 if (ldop) *ldop = CEE_LDIND_I1;
6734 case MONO_NATIVE_VARIANTBOOL:
6735 conv_arg_class = mono_defaults.int16_class;
6736 if (ldop) *ldop = CEE_LDIND_I2;
6738 case MONO_NATIVE_BOOLEAN:
6741 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6744 return conv_arg_class;
6748 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6749 MonoMarshalSpec *spec,
6750 int conv_arg, MonoType **conv_arg_type,
6751 MarshalAction action)
6755 case MARSHAL_ACTION_CONV_IN:
6757 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6759 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6762 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6763 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6765 *conv_arg_type = &conv_arg_class->this_arg;
6767 *conv_arg_type = &conv_arg_class->byval_arg;
6773 MonoMethodBuilder *mb = m->mb;
6776 case MARSHAL_ACTION_CONV_IN: {
6777 MonoType *local_type;
6779 guint8 ldc_op = CEE_LDC_I4_1;
6781 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6783 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6785 *conv_arg_type = local_type;
6786 conv_arg = mono_mb_add_local (mb, local_type);
6788 mono_mb_emit_ldarg (mb, argnum);
6790 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6791 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6792 mono_mb_emit_byte (mb, ldc_op);
6793 mono_mb_emit_stloc (mb, conv_arg);
6794 mono_mb_patch_branch (mb, label_false);
6799 case MARSHAL_ACTION_CONV_OUT:
6801 int label_false, label_end;
6805 mono_mb_emit_ldarg (mb, argnum);
6806 mono_mb_emit_ldloc (mb, conv_arg);
6808 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6809 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6811 label_end = mono_mb_emit_branch (mb, CEE_BR);
6812 mono_mb_patch_branch (mb, label_false);
6813 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6814 mono_mb_patch_branch (mb, label_end);
6816 mono_mb_emit_byte (mb, CEE_STIND_I1);
6820 case MARSHAL_ACTION_PUSH:
6822 mono_mb_emit_ldloc_addr (mb, conv_arg);
6824 mono_mb_emit_ldloc (mb, conv_arg);
6826 mono_mb_emit_ldarg (mb, argnum);
6829 case MARSHAL_ACTION_CONV_RESULT:
6830 /* maybe we need to make sure that it fits within 8 bits */
6831 mono_mb_emit_stloc (mb, 3);
6834 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6835 MonoClass* conv_arg_class = mono_defaults.int32_class;
6836 guint8 ldop = CEE_LDIND_I4;
6837 int label_null, label_false;
6839 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6840 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6843 *conv_arg_type = &conv_arg_class->this_arg;
6845 *conv_arg_type = &conv_arg_class->byval_arg;
6848 mono_mb_emit_ldarg (mb, argnum);
6852 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6853 mono_mb_emit_ldarg (mb, argnum);
6854 mono_mb_emit_byte (mb, ldop);
6858 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6859 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6860 mono_mb_emit_stloc (mb, conv_arg);
6861 mono_mb_patch_branch (mb, label_false);
6864 mono_mb_patch_branch (mb, label_null);
6868 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6869 guint8 stop = CEE_STIND_I4;
6870 guint8 ldc_op = CEE_LDC_I4_1;
6871 int label_null,label_false, label_end;;
6876 switch (spec->native) {
6877 case MONO_NATIVE_I1:
6878 case MONO_NATIVE_U1:
6879 stop = CEE_STIND_I1;
6881 case MONO_NATIVE_VARIANTBOOL:
6882 stop = CEE_STIND_I2;
6883 ldc_op = CEE_LDC_I4_M1;
6891 mono_mb_emit_ldarg (mb, argnum);
6892 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6894 mono_mb_emit_ldarg (mb, argnum);
6895 mono_mb_emit_ldloc (mb, conv_arg);
6897 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6898 mono_mb_emit_byte (mb, ldc_op);
6899 label_end = mono_mb_emit_branch (mb, CEE_BR);
6901 mono_mb_patch_branch (mb, label_false);
6902 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6903 mono_mb_patch_branch (mb, label_end);
6905 mono_mb_emit_byte (mb, stop);
6906 mono_mb_patch_branch (mb, label_null);
6911 g_assert_not_reached ();
6918 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6919 MonoMarshalSpec *spec, int conv_arg,
6920 MonoType **conv_arg_type, MarshalAction action)
6923 MonoMethodBuilder *mb = m->mb;
6926 case MARSHAL_ACTION_CONV_IN:
6927 /* MS seems to allow this in some cases, ie. bxc #158 */
6929 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6930 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6931 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6936 case MARSHAL_ACTION_PUSH:
6937 mono_mb_emit_ldarg (mb, argnum);
6940 case MARSHAL_ACTION_CONV_RESULT:
6941 /* no conversions necessary */
6942 mono_mb_emit_stloc (mb, 3);
6953 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6954 MonoMarshalSpec *spec, int conv_arg,
6955 MonoType **conv_arg_type, MarshalAction action)
6958 MonoMethodBuilder *mb = m->mb;
6961 case MARSHAL_ACTION_PUSH:
6962 /* fixme: dont know how to marshal that. We cant simply
6963 * convert it to a one byte UTF8 character, because an
6964 * unicode character may need more that one byte in UTF8 */
6965 mono_mb_emit_ldarg (mb, argnum);
6968 case MARSHAL_ACTION_CONV_RESULT:
6969 /* fixme: we need conversions here */
6970 mono_mb_emit_stloc (mb, 3);
6981 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
6982 MonoMarshalSpec *spec, int conv_arg,
6983 MonoType **conv_arg_type, MarshalAction action)
6986 MonoMethodBuilder *mb = m->mb;
6989 case MARSHAL_ACTION_PUSH:
6990 mono_mb_emit_ldarg (mb, argnum);
6993 case MARSHAL_ACTION_CONV_RESULT:
6994 /* no conversions necessary */
6995 mono_mb_emit_stloc (mb, 3);
7006 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7007 MonoMarshalSpec *spec, int conv_arg,
7008 MonoType **conv_arg_type, MarshalAction action)
7010 /* Ensure that we have marshalling info for this param */
7011 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7013 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7014 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7016 if (spec && spec->native == MONO_NATIVE_ASANY)
7017 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7020 case MONO_TYPE_VALUETYPE:
7021 if (t->data.klass == mono_defaults.handleref_class)
7022 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7024 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7025 case MONO_TYPE_STRING:
7026 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7027 case MONO_TYPE_CLASS:
7028 case MONO_TYPE_OBJECT:
7030 if (spec && spec->native == MONO_NATIVE_STRUCT)
7031 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7033 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7034 spec->native == MONO_NATIVE_IDISPATCH ||
7035 spec->native == MONO_NATIVE_INTERFACE))
7036 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7037 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7038 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7039 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7040 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7043 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
7044 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7045 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7047 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7048 case MONO_TYPE_ARRAY:
7049 case MONO_TYPE_SZARRAY:
7050 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7051 case MONO_TYPE_BOOLEAN:
7052 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7054 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7055 case MONO_TYPE_CHAR:
7056 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7069 case MONO_TYPE_FNPTR:
7070 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7071 case MONO_TYPE_GENERICINST:
7072 if (mono_type_generic_inst_is_valuetype (t))
7073 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7075 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7083 * mono_marshal_emit_native_wrapper:
7084 * @image: the image to use for looking up custom marshallers
7085 * @sig: The signature of the native function
7086 * @piinfo: Marshalling information
7087 * @mspecs: Marshalling information
7088 * @aot: whenever the created method will be compiled by the AOT compiler
7089 * @method: if non-NULL, the pinvoke method to call
7090 * @check_exceptions: Whenever to check for pending exceptions after the native call
7091 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7093 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7096 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions, gboolean func_param)
7098 EmitMarshalContext m;
7099 MonoMethodSignature *csig;
7101 int i, argnum, *tmp_locals;
7102 int type, param_shift = 0;
7103 static MonoMethodSignature *get_last_error_sig = NULL;
7104 int coop_gc_stack_dummy, coop_gc_var;
7106 memset (&m, 0, sizeof (m));
7111 /* we copy the signature, so that we can set pinvoke to 0 */
7113 /* The function address is passed as the first argument */
7114 g_assert (!sig->hasthis);
7117 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7125 /* we allocate local for use with emit_struct_conv() */
7126 /* allocate local 0 (pointer) src_ptr */
7127 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7128 /* allocate local 1 (pointer) dst_ptr */
7129 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7130 /* allocate local 2 (boolean) delete_old */
7131 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7133 /* delete_old = FALSE */
7134 mono_mb_emit_icon (mb, 0);
7135 mono_mb_emit_stloc (mb, 2);
7137 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7138 /* allocate local 3 to store the return value */
7139 mono_mb_add_local (mb, sig->ret);
7142 if (mono_threads_is_coop_enabled ()) {
7143 /* local 4, dummy local used to get a stack address for suspend funcs */
7144 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7145 /* local 5, the local to be used when calling the suspend funcs */
7146 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7149 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7150 /* Return type custom marshaling */
7152 * Since we can't determine the return type of the unmanaged function,
7153 * we assume it returns a pointer, and pass that pointer to
7154 * MarshalNativeToManaged.
7156 csig->ret = &mono_defaults.int_class->byval_arg;
7159 /* we first do all conversions */
7160 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7161 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7163 for (i = 0; i < sig->param_count; i ++) {
7164 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7167 /* push all arguments */
7170 mono_mb_emit_byte (mb, CEE_LDARG_0);
7172 for (i = 0; i < sig->param_count; i++) {
7173 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7176 if (mono_threads_is_coop_enabled ()) {
7177 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7178 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7179 mono_mb_emit_stloc (mb, coop_gc_var);
7182 /* call the native method */
7184 mono_mb_emit_byte (mb, CEE_LDARG_0);
7185 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7186 mono_mb_emit_byte (mb, CEE_LDIND_I);
7187 mono_mb_emit_calli (mb, csig);
7188 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7190 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7192 g_assert_not_reached ();
7197 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7198 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7199 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7200 mono_mb_emit_calli (mb, csig);
7202 mono_mb_emit_native_call (mb, csig, func);
7206 /* Set LastError if needed */
7207 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7208 if (!get_last_error_sig) {
7209 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7210 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7211 get_last_error_sig->pinvoke = 1;
7216 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7217 * clobber its value.
7219 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7220 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7222 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7226 if (mono_threads_is_coop_enabled ()) {
7227 mono_mb_emit_ldloc (mb, coop_gc_var);
7228 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7229 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7232 /* convert the result */
7233 if (!sig->ret->byref) {
7234 MonoMarshalSpec *spec = mspecs [0];
7235 type = sig->ret->type;
7237 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7238 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7243 case MONO_TYPE_VOID:
7245 case MONO_TYPE_VALUETYPE:
7246 klass = sig->ret->data.klass;
7247 if (klass->enumtype) {
7248 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7251 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7265 case MONO_TYPE_FNPTR:
7266 case MONO_TYPE_STRING:
7267 case MONO_TYPE_CLASS:
7268 case MONO_TYPE_OBJECT:
7269 case MONO_TYPE_BOOLEAN:
7270 case MONO_TYPE_ARRAY:
7271 case MONO_TYPE_SZARRAY:
7272 case MONO_TYPE_CHAR:
7274 case MONO_TYPE_GENERICINST:
7275 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7277 case MONO_TYPE_TYPEDBYREF:
7279 g_warning ("return type 0x%02x unknown", sig->ret->type);
7280 g_assert_not_reached ();
7284 mono_mb_emit_stloc (mb, 3);
7288 * Need to call this after converting the result since MONO_VTADDR needs
7289 * to be adjacent to the call instruction.
7291 if (check_exceptions)
7292 emit_thread_interrupt_checkpoint (mb);
7294 /* we need to convert byref arguments back and free string arrays */
7295 for (i = 0; i < sig->param_count; i++) {
7296 MonoType *t = sig->params [i];
7297 MonoMarshalSpec *spec = mspecs [i + 1];
7299 argnum = i + param_shift;
7301 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7302 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7307 case MONO_TYPE_STRING:
7308 case MONO_TYPE_VALUETYPE:
7309 case MONO_TYPE_CLASS:
7310 case MONO_TYPE_OBJECT:
7311 case MONO_TYPE_SZARRAY:
7312 case MONO_TYPE_BOOLEAN:
7313 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7320 if (!MONO_TYPE_IS_VOID(sig->ret))
7321 mono_mb_emit_ldloc (mb, 3);
7323 mono_mb_emit_byte (mb, CEE_RET);
7325 #endif /* DISABLE_JIT */
7328 * mono_marshal_get_native_wrapper:
7329 * @method: The MonoMethod to wrap.
7330 * @check_exceptions: Whenever to check for pending exceptions
7332 * generates IL code for the pinvoke wrapper (the generated method
7333 * calls the unmanaged code in piinfo->addr)
7334 * The wrapper info for the wrapper is a WrapperInfo structure.
7337 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7339 MonoMethodSignature *sig, *csig;
7340 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7341 MonoMethodBuilder *mb;
7342 MonoMarshalSpec **mspecs;
7345 gboolean pinvoke = FALSE;
7348 const char *exc_class = "MissingMethodException";
7349 const char *exc_arg = NULL;
7352 g_assert (method != NULL);
7353 g_assert (mono_method_signature (method)->pinvoke);
7355 GHashTable **cache_ptr;
7358 if (check_exceptions)
7359 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7361 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7363 if (check_exceptions)
7364 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7366 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7369 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7371 if ((res = mono_marshal_find_in_cache (cache, method)))
7374 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7375 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7379 return mono_cominterop_get_native_wrapper (method);
7381 g_assert_not_reached ();
7385 sig = mono_method_signature (method);
7387 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7388 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7391 if (!piinfo->addr) {
7393 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7394 exc_arg = "Method contains unsupported native code";
7396 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7398 piinfo->addr = mono_lookup_internal_call (method);
7402 /* hack - redirect certain string constructors to CreateString */
7403 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7404 g_assert (!pinvoke);
7405 g_assert (method->string_ctor);
7406 g_assert (sig->hasthis);
7408 /* CreateString returns a value */
7409 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7410 csig->ret = &mono_defaults.string_class->byval_arg;
7414 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7415 if (!strcmp ("CreateString", res->name) &&
7416 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7419 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7420 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7422 /* create a wrapper to preserve .ctor in stack trace */
7423 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7426 mono_mb_emit_byte (mb, CEE_LDARG_0);
7427 for (i = 1; i <= csig->param_count; i++)
7428 mono_mb_emit_ldarg (mb, i);
7429 mono_mb_emit_managed_call (mb, res, NULL);
7430 mono_mb_emit_byte (mb, CEE_RET);
7433 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7434 info->d.string_ctor.method = method;
7436 /* use native_wrapper_cache because internal calls are looked up there */
7437 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7438 csig->param_count + 1, info, NULL);
7445 /* exception will be thrown */
7446 piinfo->addr = NULL;
7447 g_warning ("cannot find CreateString for .ctor");
7450 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7452 mb->method->save_lmf = 1;
7455 * In AOT mode and embedding scenarios, it is possible that the icall is not
7456 * registered in the runtime doing the AOT compilation.
7458 if (!piinfo->addr && !aot) {
7460 mono_mb_emit_exception (mb, exc_class, exc_arg);
7462 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7463 info->d.managed_to_native.method = method;
7465 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7467 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7468 csig->param_count + 16, info, NULL);
7474 /* internal calls: we simply push all arguments and call the method (no conversions) */
7475 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7477 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7479 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7481 /* hack - string constructors returns a value */
7482 if (method->string_ctor)
7483 csig->ret = &mono_defaults.string_class->byval_arg;
7490 * Add a null check since public icalls can be called with 'call' which
7491 * does no such check.
7493 mono_mb_emit_byte (mb, CEE_LDARG_0);
7494 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7495 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7496 mono_mb_patch_branch (mb, pos);
7498 mono_mb_emit_byte (mb, CEE_LDARG_0);
7501 for (i = 0; i < sig->param_count; i++)
7502 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7505 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7506 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7507 mono_mb_emit_calli (mb, csig);
7509 g_assert (piinfo->addr);
7510 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7512 if (check_exceptions)
7513 emit_thread_interrupt_checkpoint (mb);
7514 mono_mb_emit_byte (mb, CEE_RET);
7516 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7517 info->d.managed_to_native.method = method;
7519 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7521 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7530 g_assert (piinfo->addr);
7533 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7534 mono_method_get_marshal_info (method, mspecs);
7536 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7538 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7539 info->d.managed_to_native.method = method;
7541 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7543 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7548 for (i = sig->param_count; i >= 0; i--)
7550 mono_metadata_free_marshal_spec (mspecs [i]);
7554 /* mono_method_print_code (res); */
7560 * mono_marshal_get_native_func_wrapper:
7561 * @image: The image to use for memory allocation and for looking up custom marshallers.
7562 * @sig: The signature of the function
7563 * @func: The native function to wrap
7565 * Returns a wrapper method around native functions, similar to the pinvoke
7569 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7570 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7572 MonoMethodSignature *csig;
7574 SignaturePointerPair key, *new_key;
7575 MonoMethodBuilder *mb;
7584 // Generic types are not safe to place in MonoImage caches.
7585 g_assert (!sig->is_inflated);
7587 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7588 if ((res = mono_marshal_find_in_cache (cache, &key)))
7591 name = g_strdup_printf ("wrapper_native_%p", func);
7592 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7593 mb->method->save_lmf = 1;
7596 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7599 csig = mono_metadata_signature_dup_full (image, sig);
7602 new_key = g_new (SignaturePointerPair,1);
7603 new_key->sig = csig;
7604 new_key->pointer = func;
7606 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7612 mono_marshal_set_wrapper_info (res, NULL);
7618 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7622 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7624 MonoMethodSignature *sig, *csig;
7625 MonoMethodBuilder *mb;
7630 MonoMethodPInvoke mpiinfo;
7631 MonoMethodPInvoke *piinfo = &mpiinfo;
7632 MonoMarshalSpec **mspecs;
7633 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7634 MonoImage *image = invoke->klass->image;
7637 // FIXME: include UnmanagedFunctionPointerAttribute info
7640 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7642 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7644 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7647 memset (&mpiinfo, 0, sizeof (mpiinfo));
7648 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7650 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7651 mono_method_get_marshal_info (invoke, mspecs);
7652 /* Freed below so don't alloc from mempool */
7653 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7656 name = g_strdup_printf ("wrapper_aot_native");
7657 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7658 mb->method->save_lmf = 1;
7661 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7664 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7665 info->d.managed_to_native.method = invoke;
7667 g_assert (!sig->hasthis);
7668 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7670 res = mono_mb_create_and_cache_full (cache, invoke,
7671 mb, csig, csig->param_count + 16,
7675 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7677 mono_metadata_free_marshal_spec (mspecs [i]);
7685 * mono_marshal_emit_managed_wrapper:
7687 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7688 * the delegate which wraps the managed method to be called. For closed delegates,
7689 * it could have fewer parameters than the method it wraps.
7690 * THIS_LOC is the memory location where the target of the delegate is stored.
7693 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7696 MonoMethodSignature *sig, *csig;
7702 /* we first do all conversions */
7703 for (i = 0; i < sig->param_count; i ++) {
7704 MonoType *t = sig->params [i];
7707 case MONO_TYPE_OBJECT:
7708 case MONO_TYPE_CLASS:
7709 case MONO_TYPE_VALUETYPE:
7710 case MONO_TYPE_ARRAY:
7711 case MONO_TYPE_SZARRAY:
7712 case MONO_TYPE_STRING:
7713 case MONO_TYPE_BOOLEAN:
7714 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7718 if (!sig->ret->byref) {
7719 switch (sig->ret->type) {
7720 case MONO_TYPE_STRING:
7721 csig->ret = &mono_defaults.int_class->byval_arg;
7728 MonoMethodSignature *sig, *csig;
7730 gboolean closed = FALSE;
7731 int coop_gc_var, coop_gc_dummy_local;
7736 /* allocate local 0 (pointer) src_ptr */
7737 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7738 /* allocate local 1 (pointer) dst_ptr */
7739 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7740 /* allocate local 2 (boolean) delete_old */
7741 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7743 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7744 /* Closed delegate */
7745 g_assert (sig->param_count == invoke_sig->param_count + 1);
7747 /* Use a new signature without the first argument */
7748 sig = mono_metadata_signature_dup (sig);
7749 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7750 sig->param_count --;
7753 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7754 /* allocate local 3 to store the return value */
7755 mono_mb_add_local (mb, sig->ret);
7758 if (mono_threads_is_coop_enabled ()) {
7759 /* local 4, the local to be used when calling the reset_blocking funcs */
7760 /* tons of code hardcode 3 to be the return var */
7761 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7762 /* local 5, the local used to get a stack address for suspend funcs */
7763 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7766 mono_mb_emit_icon (mb, 0);
7767 mono_mb_emit_stloc (mb, 2);
7770 * Might need to attach the thread to the JIT or change the
7771 * domain for the callback.
7773 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7774 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7776 if (mono_threads_is_coop_enabled ()) {
7777 /* XXX can we merge reset_blocking_start with JIT_ATTACH above and save one call? */
7778 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
7779 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
7780 mono_mb_emit_stloc (mb, coop_gc_var);
7783 /* we first do all conversions */
7784 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7785 for (i = 0; i < sig->param_count; i ++) {
7786 MonoType *t = sig->params [i];
7789 case MONO_TYPE_OBJECT:
7790 case MONO_TYPE_CLASS:
7791 case MONO_TYPE_VALUETYPE:
7792 case MONO_TYPE_ARRAY:
7793 case MONO_TYPE_SZARRAY:
7794 case MONO_TYPE_STRING:
7795 case MONO_TYPE_BOOLEAN:
7796 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7805 emit_thread_interrupt_checkpoint (mb);
7808 if (target_handle) {
7809 mono_mb_emit_icon (mb, (gint32)target_handle);
7810 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7813 g_assert_not_reached ();
7815 } else if (closed) {
7816 mono_mb_emit_icon (mb, (gint32)target_handle);
7817 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7820 for (i = 0; i < sig->param_count; i++) {
7821 MonoType *t = sig->params [i];
7823 if (tmp_locals [i]) {
7825 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7827 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7830 mono_mb_emit_ldarg (mb, i);
7833 mono_mb_emit_managed_call (mb, method, NULL);
7835 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7836 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7837 } else if (!sig->ret->byref) {
7838 switch (sig->ret->type) {
7839 case MONO_TYPE_VOID:
7841 case MONO_TYPE_BOOLEAN:
7844 case MONO_TYPE_CHAR:
7856 case MONO_TYPE_OBJECT:
7857 mono_mb_emit_stloc (mb, 3);
7859 case MONO_TYPE_STRING:
7860 csig->ret = &mono_defaults.int_class->byval_arg;
7861 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7863 case MONO_TYPE_VALUETYPE:
7864 case MONO_TYPE_CLASS:
7865 case MONO_TYPE_SZARRAY:
7866 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7869 g_warning ("return type 0x%02x unknown", sig->ret->type);
7870 g_assert_not_reached ();
7873 mono_mb_emit_stloc (mb, 3);
7876 /* Convert byref arguments back */
7877 for (i = 0; i < sig->param_count; i ++) {
7878 MonoType *t = sig->params [i];
7879 MonoMarshalSpec *spec = mspecs [i + 1];
7881 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7882 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7884 else if (t->byref) {
7886 case MONO_TYPE_CLASS:
7887 case MONO_TYPE_VALUETYPE:
7888 case MONO_TYPE_OBJECT:
7889 case MONO_TYPE_STRING:
7890 case MONO_TYPE_BOOLEAN:
7891 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7897 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7898 /* The [Out] information is encoded in the delegate signature */
7900 case MONO_TYPE_SZARRAY:
7901 case MONO_TYPE_CLASS:
7902 case MONO_TYPE_VALUETYPE:
7903 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7906 g_assert_not_reached ();
7911 if (mono_threads_is_coop_enabled ()) {
7912 /* XXX merge reset_blocking_end with detach */
7913 mono_mb_emit_ldloc (mb, coop_gc_var);
7914 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
7915 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
7918 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7919 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7921 if (m->retobj_var) {
7922 mono_mb_emit_ldloc (mb, m->retobj_var);
7923 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7924 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7927 if (!MONO_TYPE_IS_VOID(sig->ret))
7928 mono_mb_emit_ldloc (mb, 3);
7929 mono_mb_emit_byte (mb, CEE_RET);
7938 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7940 MonoMethodSignature *sig;
7945 * Under windows, delegates passed to native code must use the STDCALL
7946 * calling convention.
7948 csig->call_convention = MONO_CALL_STDCALL;
7951 sig = mono_method_signature (method);
7953 /* Change default calling convention if needed */
7954 /* Why is this a modopt ? */
7955 if (sig->ret && sig->ret->num_mods) {
7956 for (i = 0; i < sig->ret->num_mods; ++i) {
7958 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7959 g_assert (mono_error_ok (&error));
7960 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7961 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7962 csig->call_convention = MONO_CALL_C;
7963 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7964 csig->call_convention = MONO_CALL_STDCALL;
7965 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7966 csig->call_convention = MONO_CALL_FASTCALL;
7967 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7968 csig->call_convention = MONO_CALL_THISCALL;
7975 * generates IL code to call managed methods from unmanaged code
7976 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7979 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
7981 static MonoClass *UnmanagedFunctionPointerAttribute;
7982 MonoMethodSignature *sig, *csig, *invoke_sig;
7983 MonoMethodBuilder *mb;
7984 MonoMethod *res, *invoke;
7985 MonoMarshalSpec **mspecs;
7986 MonoMethodPInvoke piinfo;
7989 EmitMarshalContext m;
7991 g_assert (method != NULL);
7992 g_assert (!mono_method_signature (method)->pinvoke);
7995 * FIXME: Should cache the method+delegate type pair, since the same method
7996 * could be called with different delegates, thus different marshalling
7999 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8001 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8004 invoke = mono_get_delegate_invoke (delegate_klass);
8005 invoke_sig = mono_method_signature (invoke);
8007 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8008 mono_method_get_marshal_info (invoke, mspecs);
8010 sig = mono_method_signature (method);
8012 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8014 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8015 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8017 /* we copy the signature, so that we can modify it */
8019 /* Need to free this later */
8020 csig = mono_metadata_signature_dup (invoke_sig);
8022 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8026 memset (&m, 0, sizeof (m));
8032 m.image = method->klass->image;
8034 mono_marshal_set_callconv_from_modopt (invoke, csig);
8036 /* Handle the UnmanagedFunctionPointerAttribute */
8037 if (!UnmanagedFunctionPointerAttribute)
8038 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8040 /* The attribute is only available in Net 2.0 */
8041 if (UnmanagedFunctionPointerAttribute) {
8042 MonoCustomAttrInfo *cinfo;
8043 MonoCustomAttrEntry *attr;
8046 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8047 * contents of the attribute without constructing it, as that might not be
8048 * possible when running in cross-compiling mode.
8050 cinfo = mono_custom_attrs_from_class (delegate_klass);
8053 for (i = 0; i < cinfo->num_attrs; ++i) {
8054 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8055 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
8056 attr = &cinfo->attrs [i];
8062 MonoArray *typed_args, *named_args;
8063 CattrNamedArg *arginfo;
8067 MonoBoolean set_last_error = 0;
8070 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8071 g_assert (mono_error_ok (&error));
8072 g_assert (mono_array_length (typed_args) == 1);
8075 o = mono_array_get (typed_args, MonoObject*, 0);
8076 call_conv = *(gint32*)mono_object_unbox (o);
8079 for (i = 0; i < mono_array_length (named_args); ++i) {
8080 CattrNamedArg *narg = &arginfo [i];
8082 o = mono_array_get (named_args, MonoObject*, i);
8084 g_assert (narg->field);
8085 if (!strcmp (narg->field->name, "CharSet")) {
8086 charset = *(gint32*)mono_object_unbox (o);
8087 } else if (!strcmp (narg->field->name, "SetLastError")) {
8088 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8089 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8090 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8091 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8092 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8094 g_assert_not_reached ();
8100 memset (&piinfo, 0, sizeof (piinfo));
8102 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8104 csig->call_convention = call_conv - 1;
8107 if (cinfo && !cinfo->cached)
8108 mono_custom_attrs_free (cinfo);
8111 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8113 if (!target_handle) {
8116 // FIXME: Associate it with the method+delegate_klass pair
8117 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8118 info->d.native_to_managed.method = method;
8119 info->d.native_to_managed.klass = delegate_klass;
8121 res = mono_mb_create_and_cache_full (cache, method,
8122 mb, csig, sig->param_count + 16,
8128 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8132 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8134 mono_metadata_free_marshal_spec (mspecs [i]);
8137 /* mono_method_print_code (res); */
8143 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8146 MonoMethodSignature *sig;
8147 MonoMethodBuilder *mb;
8152 method = mono_get_method (image, token, NULL);
8155 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8156 MonoMethodSignature *csig;
8157 MonoMarshalSpec **mspecs;
8158 EmitMarshalContext m;
8160 sig = mono_method_signature (method);
8161 g_assert (!sig->hasthis);
8163 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8164 mono_method_get_marshal_info (method, mspecs);
8166 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8167 csig = mono_metadata_signature_dup_full (image, sig);
8171 memset (&m, 0, sizeof (m));
8179 mono_marshal_set_callconv_from_modopt (method, csig);
8181 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8183 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8188 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8191 for (i = sig->param_count; i >= 0; i--)
8193 mono_metadata_free_marshal_spec (mspecs [i]);
8196 return mono_compile_method (method);
8199 sig = mono_method_signature (method);
8200 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8202 param_count = sig->param_count + sig->hasthis;
8204 for (i = 0; i < param_count; i++)
8205 mono_mb_emit_ldarg (mb, i);
8207 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8208 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8210 mono_mb_emit_op (mb, CEE_CALL, method);
8211 mono_mb_emit_byte (mb, CEE_RET);
8216 method = mono_mb_create (mb, sig, param_count, NULL);
8219 return mono_compile_method (method);
8225 * The code directly following this is the cache hit, value positive branch
8227 * This function takes a new method builder with 0 locals and adds two locals
8228 * to create multiple out-branches and the fall through state of having the object
8229 * on the stack after a cache miss
8232 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8233 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8234 MonoMethodBuilder *mb)
8238 /* allocate local 0 (pointer) obj_vtable */
8239 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8240 /* allocate local 1 (pointer) cached_vtable */
8241 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8244 mono_mb_emit_ldarg (mb, obj_arg_position);
8245 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8247 /*obj_vtable = obj->vtable;*/
8248 mono_mb_emit_ldarg (mb, obj_arg_position);
8249 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8250 mono_mb_emit_byte (mb, CEE_LDIND_I);
8251 mono_mb_emit_stloc (mb, 0);
8253 /* cached_vtable = *cache*/
8254 mono_mb_emit_ldarg (mb, cache_arg_position);
8255 mono_mb_emit_byte (mb, CEE_LDIND_I);
8256 mono_mb_emit_stloc (mb, 1);
8258 mono_mb_emit_ldloc (mb, 1);
8259 mono_mb_emit_byte (mb, CEE_LDC_I4);
8260 mono_mb_emit_i4 (mb, ~0x1);
8261 mono_mb_emit_byte (mb, CEE_CONV_I);
8262 mono_mb_emit_byte (mb, CEE_AND);
8263 mono_mb_emit_ldloc (mb, 0);
8264 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8265 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8267 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8268 mono_mb_emit_ldloc (mb, 1);
8269 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8270 mono_mb_emit_byte (mb, CEE_CONV_U);
8271 mono_mb_emit_byte (mb, CEE_AND);
8272 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8273 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8276 mono_mb_patch_branch (mb, cache_miss_pos);
8279 mono_mb_emit_ldarg (mb, obj_arg_position);
8280 mono_mb_emit_ldarg (mb, class_arg_position);
8281 mono_mb_emit_ldarg (mb, cache_arg_position);
8282 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8285 #endif /* DISABLE_JIT */
8288 * This does the equivalent of mono_object_castclass_with_cache.
8289 * The wrapper info for the wrapper is a WrapperInfo structure.
8292 mono_marshal_get_castclass_with_cache (void)
8294 static MonoMethod *cached;
8296 MonoMethodBuilder *mb;
8297 MonoMethodSignature *sig;
8298 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8301 const int obj_arg_position = 0;
8302 const int class_arg_position = 1;
8303 const int cache_arg_position = 2;
8308 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8309 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8310 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8311 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8312 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8313 sig->ret = &mono_defaults.object_class->byval_arg;
8317 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8318 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8319 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8322 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8323 mono_mb_emit_ldarg (mb, obj_arg_position);
8324 mono_mb_emit_byte (mb, CEE_RET);
8327 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8328 mono_mb_patch_branch (mb, invalid_cast_pos);
8329 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8332 mono_mb_patch_branch (mb, return_null_pos);
8333 mono_mb_emit_byte (mb, CEE_LDNULL);
8334 mono_mb_emit_byte (mb, CEE_RET);
8335 #endif /* DISABLE_JIT */
8337 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8338 res = mono_mb_create (mb, sig, 8, info);
8341 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8342 mono_free_method (res);
8343 mono_metadata_free_method_signature (sig);
8351 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8353 MonoObject *isinst = mono_object_isinst (obj, klass);
8355 #ifndef DISABLE_REMOTING
8356 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8360 uintptr_t cache_update = (uintptr_t)obj->vtable;
8362 cache_update = cache_update | 0x1;
8364 *cache = cache_update;
8370 * This does the equivalent of mono_object_isinst_with_cache.
8371 * The wrapper info for the wrapper is a WrapperInfo structure.
8374 mono_marshal_get_isinst_with_cache (void)
8376 static MonoMethod *cached;
8378 MonoMethodBuilder *mb;
8379 MonoMethodSignature *sig;
8380 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8383 const int obj_arg_position = 0;
8384 const int class_arg_position = 1;
8385 const int cache_arg_position = 2;
8390 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8391 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8393 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8395 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8397 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8398 sig->ret = &mono_defaults.object_class->byval_arg;
8402 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8403 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8404 // Return the object gotten via the slow path.
8405 mono_mb_emit_byte (mb, CEE_RET);
8408 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8409 mono_mb_patch_branch (mb, return_null_pos);
8410 mono_mb_emit_byte (mb, CEE_LDNULL);
8411 mono_mb_emit_byte (mb, CEE_RET);
8414 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8415 mono_mb_emit_ldarg (mb, 0);
8416 mono_mb_emit_byte (mb, CEE_RET);
8419 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8420 res = mono_mb_create (mb, sig, 8, info);
8423 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8424 mono_free_method (res);
8425 mono_metadata_free_method_signature (sig);
8433 * mono_marshal_get_isinst:
8434 * @klass: the type of the field
8436 * This method generates a function which can be used to check if an object is
8437 * an instance of the given type, icluding the case where the object is a proxy.
8438 * The generated function has the following signature:
8439 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8442 mono_marshal_get_isinst (MonoClass *klass)
8444 static MonoMethodSignature *isint_sig = NULL;
8448 int pos_was_ok, pos_end;
8449 #ifndef DISABLE_REMOTING
8450 int pos_end2, pos_failed;
8453 MonoMethodBuilder *mb;
8455 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8456 if ((res = mono_marshal_find_in_cache (cache, klass)))
8460 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8461 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8462 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8463 isint_sig->pinvoke = 0;
8466 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8467 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8470 mb->method->save_lmf = 1;
8473 /* check if the object is a proxy that needs special cast */
8474 mono_mb_emit_ldarg (mb, 0);
8475 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8476 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8478 /* The result of MONO_CISINST can be:
8479 0) the type check succeeded
8480 1) the type check did not succeed
8481 2) a CanCastTo call is needed */
8482 #ifndef DISABLE_REMOTING
8483 mono_mb_emit_byte (mb, CEE_DUP);
8484 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8486 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8487 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8489 /* get the real proxy from the transparent proxy*/
8491 mono_mb_emit_ldarg (mb, 0);
8492 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8493 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8497 mono_mb_patch_branch (mb, pos_failed);
8498 mono_mb_emit_byte (mb, CEE_LDNULL);
8499 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8503 mono_mb_patch_branch (mb, pos_was_ok);
8504 mono_mb_emit_byte (mb, CEE_POP);
8505 mono_mb_emit_ldarg (mb, 0);
8509 mono_mb_patch_branch (mb, pos_end);
8510 mono_mb_patch_branch (mb, pos_end2);
8511 mono_mb_emit_byte (mb, CEE_RET);
8513 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8517 mono_mb_emit_byte (mb, CEE_LDNULL);
8518 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8522 mono_mb_patch_branch (mb, pos_was_ok);
8523 mono_mb_emit_ldarg (mb, 0);
8527 mono_mb_patch_branch (mb, pos_end);
8528 mono_mb_emit_byte (mb, CEE_RET);
8529 #endif /* DISABLE_REMOTING */
8530 #endif /* DISABLE_JIT */
8532 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8533 info->d.proxy.klass = klass;
8534 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8541 * mono_marshal_get_castclass:
8542 * @klass: the type of the field
8544 * This method generates a function which can be used to cast an object to
8545 * an instance of the given type, icluding the case where the object is a proxy.
8546 * The generated function has the following signature:
8547 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8548 * The wrapper info for the wrapper is a WrapperInfo structure.
8551 mono_marshal_get_castclass (MonoClass *klass)
8553 static MonoMethodSignature *castclass_sig = NULL;
8556 #ifndef DISABLE_REMOTING
8557 int pos_was_ok, pos_was_ok2;
8560 MonoMethodBuilder *mb;
8563 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8564 if ((res = mono_marshal_find_in_cache (cache, klass)))
8567 if (!castclass_sig) {
8568 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8569 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8570 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8571 castclass_sig->pinvoke = 0;
8574 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8575 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8578 mb->method->save_lmf = 1;
8581 /* check if the object is a proxy that needs special cast */
8582 mono_mb_emit_ldarg (mb, 0);
8583 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8584 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8586 /* The result of MONO_CCASTCLASS can be:
8587 0) the cast is valid
8588 1) cast of unknown proxy type
8589 or an exception if the cast is is invalid
8591 #ifndef DISABLE_REMOTING
8592 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8594 /* get the real proxy from the transparent proxy*/
8596 mono_mb_emit_ldarg (mb, 0);
8597 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8598 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8601 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8604 mono_mb_patch_branch (mb, pos_was_ok);
8605 mono_mb_patch_branch (mb, pos_was_ok2);
8607 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8608 mono_mb_emit_byte (mb, CEE_POP);
8609 #endif /* DISABLE_REMOTING */
8611 mono_mb_emit_ldarg (mb, 0);
8614 mono_mb_emit_byte (mb, CEE_RET);
8615 #endif /* DISABLE_JIT */
8617 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8619 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8627 * mono_marshal_get_struct_to_ptr:
8630 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8631 * The wrapper info for the wrapper is a WrapperInfo structure.
8634 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8636 MonoMethodBuilder *mb;
8637 static MonoMethod *stoptr = NULL;
8641 g_assert (klass != NULL);
8643 mono_marshal_load_type_info (klass);
8645 if (klass->marshal_info->str_to_ptr)
8646 return klass->marshal_info->str_to_ptr;
8649 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8652 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8655 if (klass->blittable) {
8656 mono_mb_emit_byte (mb, CEE_LDARG_1);
8657 mono_mb_emit_byte (mb, CEE_LDARG_0);
8658 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8659 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8660 mono_mb_emit_byte (mb, CEE_PREFIX1);
8661 mono_mb_emit_byte (mb, CEE_CPBLK);
8664 /* allocate local 0 (pointer) src_ptr */
8665 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8666 /* allocate local 1 (pointer) dst_ptr */
8667 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8668 /* allocate local 2 (boolean) delete_old */
8669 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8670 mono_mb_emit_byte (mb, CEE_LDARG_2);
8671 mono_mb_emit_stloc (mb, 2);
8673 /* initialize src_ptr to point to the start of object data */
8674 mono_mb_emit_byte (mb, CEE_LDARG_0);
8675 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8676 mono_mb_emit_stloc (mb, 0);
8678 /* initialize dst_ptr */
8679 mono_mb_emit_byte (mb, CEE_LDARG_1);
8680 mono_mb_emit_stloc (mb, 1);
8682 emit_struct_conv (mb, klass, FALSE);
8685 mono_mb_emit_byte (mb, CEE_RET);
8687 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8688 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8691 mono_marshal_lock ();
8692 if (!klass->marshal_info->str_to_ptr)
8693 klass->marshal_info->str_to_ptr = res;
8695 res = klass->marshal_info->str_to_ptr;
8696 mono_marshal_unlock ();
8701 * mono_marshal_get_ptr_to_struct:
8704 * generates IL code for PtrToStructure (IntPtr src, object structure)
8705 * The wrapper info for the wrapper is a WrapperInfo structure.
8708 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8710 MonoMethodBuilder *mb;
8711 static MonoMethodSignature *ptostr = NULL;
8715 g_assert (klass != NULL);
8717 mono_marshal_load_type_info (klass);
8719 if (klass->marshal_info->ptr_to_str)
8720 return klass->marshal_info->ptr_to_str;
8723 MonoMethodSignature *sig;
8725 /* Create the signature corresponding to
8726 static void PtrToStructure (IntPtr ptr, object structure);
8727 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8728 sig = mono_create_icall_signature ("void ptr object");
8729 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8731 mono_memory_barrier ();
8735 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8738 if (klass->blittable) {
8739 mono_mb_emit_byte (mb, CEE_LDARG_1);
8740 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8741 mono_mb_emit_byte (mb, CEE_LDARG_0);
8742 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8743 mono_mb_emit_byte (mb, CEE_PREFIX1);
8744 mono_mb_emit_byte (mb, CEE_CPBLK);
8747 /* allocate local 0 (pointer) src_ptr */
8748 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8749 /* allocate local 1 (pointer) dst_ptr */
8750 mono_mb_add_local (mb, &klass->this_arg);
8752 /* initialize src_ptr to point to the start of object data */
8753 mono_mb_emit_byte (mb, CEE_LDARG_0);
8754 mono_mb_emit_stloc (mb, 0);
8756 /* initialize dst_ptr */
8757 mono_mb_emit_byte (mb, CEE_LDARG_1);
8758 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8759 mono_mb_emit_stloc (mb, 1);
8761 emit_struct_conv (mb, klass, TRUE);
8764 mono_mb_emit_byte (mb, CEE_RET);
8766 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8767 res = mono_mb_create (mb, ptostr, 0, info);
8770 mono_marshal_lock ();
8771 if (!klass->marshal_info->ptr_to_str)
8772 klass->marshal_info->ptr_to_str = res;
8774 res = klass->marshal_info->ptr_to_str;
8775 mono_marshal_unlock ();
8780 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8781 * This is used to avoid infinite recursion since it is hard to determine where to
8782 * replace a method with its synchronized wrapper, and where not.
8783 * The runtime should execute METHOD instead of the wrapper.
8784 * The wrapper info for the wrapper is a WrapperInfo structure.
8787 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8789 MonoMethodBuilder *mb;
8791 MonoMethodSignature *sig;
8793 MonoGenericContext *ctx = NULL;
8794 MonoGenericContainer *container = NULL;
8796 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8797 ctx = &((MonoMethodInflated*)method)->context;
8798 method = ((MonoMethodInflated*)method)->declaring;
8799 container = mono_method_get_generic_container (method);
8801 container = method->klass->generic_container;
8802 g_assert (container);
8805 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8807 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8808 mono_mb_emit_byte (mb, CEE_RET);
8810 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8812 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8813 info->d.synchronized_inner.method = method;
8814 res = mono_mb_create (mb, sig, 0, info);
8818 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8819 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8825 * generates IL code for the synchronized wrapper: the generated method
8826 * calls METHOD while locking 'this' or the parent type.
8829 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8831 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8832 MonoMethodSignature *sig;
8833 MonoExceptionClause *clause;
8834 MonoMethodBuilder *mb;
8838 int i, pos, pos2, this_local, taken_local, ret_local = 0;
8839 MonoGenericContext *ctx = NULL;
8840 MonoMethod *orig_method = NULL;
8841 MonoGenericContainer *container = NULL;
8845 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8848 /* FIXME: Support generic methods too */
8849 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8850 orig_method = method;
8851 ctx = &((MonoMethodInflated*)method)->context;
8852 method = ((MonoMethodInflated*)method)->declaring;
8853 container = mono_method_get_generic_container (method);
8855 container = method->klass->generic_container;
8856 g_assert (container);
8863 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
8864 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8868 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
8869 if ((res = mono_marshal_find_in_cache (cache, method)))
8873 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8876 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8878 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8879 info->d.synchronized.method = method;
8882 mb->skip_visibility = 1;
8884 if (!MONO_TYPE_IS_VOID (sig->ret))
8885 ret_local = mono_mb_add_local (mb, sig->ret);
8888 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8889 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8891 /* This will throw the type load exception when the wrapper is compiled */
8892 mono_mb_emit_byte (mb, CEE_LDNULL);
8893 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8894 mono_mb_emit_byte (mb, CEE_POP);
8896 if (!MONO_TYPE_IS_VOID (sig->ret))
8897 mono_mb_emit_ldloc (mb, ret_local);
8898 mono_mb_emit_byte (mb, CEE_RET);
8901 res = mono_mb_create_and_cache_full (cache, method,
8902 mb, sig, sig->param_count + 16, info, NULL);
8910 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8911 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8913 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8914 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8917 mono_marshal_lock ();
8919 if (!enter_method) {
8920 MonoMethodDesc *desc;
8922 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
8923 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8924 g_assert (enter_method);
8925 mono_method_desc_free (desc);
8927 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8928 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8929 g_assert (exit_method);
8930 mono_method_desc_free (desc);
8932 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8933 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8934 g_assert (gettypefromhandle_method);
8935 mono_method_desc_free (desc);
8938 mono_marshal_unlock ();
8941 /* Push this or the type object */
8942 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8943 /* We have special handling for this in the JIT */
8944 int index = mono_mb_add_data (mb, method->klass);
8945 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8946 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8947 mono_mb_emit_i4 (mb, index);
8949 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8952 mono_mb_emit_ldarg (mb, 0);
8953 mono_mb_emit_stloc (mb, this_local);
8955 /* Call Monitor::Enter() */
8956 mono_mb_emit_ldloc (mb, this_local);
8957 mono_mb_emit_ldloc_addr (mb, taken_local);
8958 mono_mb_emit_managed_call (mb, enter_method, NULL);
8960 clause->try_offset = mono_mb_get_label (mb);
8962 /* Call the method */
8964 mono_mb_emit_ldarg (mb, 0);
8965 for (i = 0; i < sig->param_count; i++)
8966 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8970 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
8971 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8973 mono_mb_emit_managed_call (mb, method, NULL);
8976 if (!MONO_TYPE_IS_VOID (sig->ret))
8977 mono_mb_emit_stloc (mb, ret_local);
8979 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8981 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8982 clause->handler_offset = mono_mb_get_label (mb);
8984 /* Call Monitor::Exit() if needed */
8985 mono_mb_emit_ldloc (mb, taken_local);
8986 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8987 mono_mb_emit_ldloc (mb, this_local);
8988 mono_mb_emit_managed_call (mb, exit_method, NULL);
8989 mono_mb_patch_branch (mb, pos2);
8990 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8992 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8994 mono_mb_patch_branch (mb, pos);
8995 if (!MONO_TYPE_IS_VOID (sig->ret))
8996 mono_mb_emit_ldloc (mb, ret_local);
8997 mono_mb_emit_byte (mb, CEE_RET);
8999 mono_mb_set_clauses (mb, 1, clause);
9004 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9005 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9007 res = mono_mb_create_and_cache_full (cache, method,
9008 mb, sig, sig->param_count + 16, info, NULL);
9017 * the returned method calls 'method' unboxing the this argument
9020 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9022 MonoMethodSignature *sig = mono_method_signature (method);
9024 MonoMethodBuilder *mb;
9029 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9031 if ((res = mono_marshal_find_in_cache (cache, method)))
9034 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9036 g_assert (sig->hasthis);
9039 mono_mb_emit_ldarg (mb, 0);
9040 mono_mb_emit_icon (mb, sizeof (MonoObject));
9041 mono_mb_emit_byte (mb, CEE_ADD);
9042 for (i = 0; i < sig->param_count; ++i)
9043 mono_mb_emit_ldarg (mb, i + 1);
9044 mono_mb_emit_managed_call (mb, method, NULL);
9045 mono_mb_emit_byte (mb, CEE_RET);
9048 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9049 info->d.unbox.method = method;
9051 res = mono_mb_create_and_cache_full (cache, method,
9052 mb, sig, sig->param_count + 16, info, NULL);
9055 /* mono_method_print_code (res); */
9061 STELEMREF_OBJECT, /*no check at all*/
9062 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9063 STELEMREF_CLASS, /*only the klass->parents check*/
9064 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9065 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9066 STELEMREF_KIND_COUNT
9069 static const char *strelemref_wrapper_name[] = {
9070 "object", "sealed_class", "class", "interface", "complex"
9074 is_monomorphic_array (MonoClass *klass)
9076 MonoClass *element_class;
9077 if (klass->rank != 1)
9080 element_class = klass->element_class;
9081 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9085 get_virtual_stelemref_kind (MonoClass *element_class)
9087 if (element_class == mono_defaults.object_class)
9088 return STELEMREF_OBJECT;
9089 if (is_monomorphic_array (element_class))
9090 return STELEMREF_SEALED_CLASS;
9091 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9092 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9093 #ifdef COMPRESSED_INTERFACE_BITMAP
9094 return STELEMREF_COMPLEX;
9096 return STELEMREF_INTERFACE;
9098 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9099 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9100 return STELEMREF_COMPLEX;
9101 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9102 return STELEMREF_SEALED_CLASS;
9103 return STELEMREF_CLASS;
9109 load_array_element_address (MonoMethodBuilder *mb)
9111 mono_mb_emit_ldarg (mb, 0);
9112 mono_mb_emit_ldarg (mb, 1);
9113 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9117 load_array_class (MonoMethodBuilder *mb, int aklass)
9119 mono_mb_emit_ldarg (mb, 0);
9120 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9121 mono_mb_emit_byte (mb, CEE_LDIND_I);
9122 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9123 mono_mb_emit_byte (mb, CEE_LDIND_I);
9124 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9125 mono_mb_emit_byte (mb, CEE_LDIND_I);
9126 mono_mb_emit_stloc (mb, aklass);
9130 load_value_class (MonoMethodBuilder *mb, int vklass)
9132 mono_mb_emit_ldarg (mb, 2);
9133 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9134 mono_mb_emit_byte (mb, CEE_LDIND_I);
9135 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9136 mono_mb_emit_byte (mb, CEE_LDIND_I);
9137 mono_mb_emit_stloc (mb, vklass);
9143 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9145 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9146 printf ("slow vstore of %s\n", name);
9152 * The wrapper info for the wrapper is a WrapperInfo structure.
9155 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9156 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9157 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9158 * - Add a case for arrays of arrays.
9161 get_virtual_stelemref_wrapper (int kind)
9163 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9164 static MonoMethodSignature *signature;
9165 MonoMethodBuilder *mb;
9168 const char *param_names [16];
9170 int aklass, vklass, vtable, uiid;
9171 int array_slot_addr;
9174 if (cached_methods [kind])
9175 return cached_methods [kind];
9177 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9178 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9182 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9184 /* void this::stelemref (size_t idx, void* value) */
9185 sig->ret = &mono_defaults.void_class->byval_arg;
9186 sig->hasthis = TRUE;
9187 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9188 sig->params [1] = &mono_defaults.object_class->byval_arg;
9193 param_names [0] = "index";
9194 param_names [1] = "value";
9195 mono_mb_set_param_names (mb, param_names);
9197 /*For now simply call plain old stelemref*/
9199 case STELEMREF_OBJECT:
9200 /* ldelema (implicit bound check) */
9201 load_array_element_address (mb);
9203 mono_mb_emit_ldarg (mb, 2);
9204 mono_mb_emit_byte (mb, CEE_STIND_REF);
9205 mono_mb_emit_byte (mb, CEE_RET);
9208 case STELEMREF_COMPLEX:
9210 <ldelema (bound check)>
9213 if (!mono_object_isinst (value, aklass))
9217 *array_slot_addr = value;
9220 throw new ArrayTypeMismatchException ();
9223 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9224 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9228 /*Use this to debug/record stores that are going thru the slow path*/
9229 MonoMethodSignature *csig;
9230 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9231 csig->ret = &mono_defaults.void_class->byval_arg;
9232 csig->params [0] = &mono_defaults.object_class->byval_arg;
9233 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9234 csig->params [2] = &mono_defaults.object_class->byval_arg;
9235 mono_mb_emit_ldarg (mb, 0);
9236 mono_mb_emit_ldarg (mb, 1);
9237 mono_mb_emit_ldarg (mb, 2);
9238 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9242 /* ldelema (implicit bound check) */
9243 load_array_element_address (mb);
9244 mono_mb_emit_stloc (mb, array_slot_addr);
9246 /* if (!value) goto do_store */
9247 mono_mb_emit_ldarg (mb, 2);
9248 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9250 /* aklass = array->vtable->klass->element_class */
9251 load_array_class (mb, aklass);
9253 /*if (mono_object_isinst (value, aklass)) */
9254 mono_mb_emit_ldarg (mb, 2);
9255 mono_mb_emit_ldloc (mb, aklass);
9256 mono_mb_emit_icall (mb, mono_object_isinst);
9257 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9260 mono_mb_patch_branch (mb, b1);
9261 mono_mb_emit_ldloc (mb, array_slot_addr);
9262 mono_mb_emit_ldarg (mb, 2);
9263 mono_mb_emit_byte (mb, CEE_STIND_REF);
9264 mono_mb_emit_byte (mb, CEE_RET);
9267 mono_mb_patch_branch (mb, b2);
9269 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9272 case STELEMREF_SEALED_CLASS:
9274 <ldelema (bound check)>
9278 aklass = array->vtable->klass->element_class;
9279 vklass = value->vtable->klass;
9281 if (vklass != aklass)
9285 *array_slot_addr = value;
9288 throw new ArrayTypeMismatchException ();
9290 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9291 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9292 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9295 /* ldelema (implicit bound check) */
9296 load_array_element_address (mb);
9297 mono_mb_emit_stloc (mb, array_slot_addr);
9299 /* if (!value) goto do_store */
9300 mono_mb_emit_ldarg (mb, 2);
9301 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9303 /* aklass = array->vtable->klass->element_class */
9304 load_array_class (mb, aklass);
9306 /* vklass = value->vtable->klass */
9307 load_value_class (mb, vklass);
9309 /*if (vklass != aklass) goto do_exception; */
9310 mono_mb_emit_ldloc (mb, aklass);
9311 mono_mb_emit_ldloc (mb, vklass);
9312 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9315 mono_mb_patch_branch (mb, b1);
9316 mono_mb_emit_ldloc (mb, array_slot_addr);
9317 mono_mb_emit_ldarg (mb, 2);
9318 mono_mb_emit_byte (mb, CEE_STIND_REF);
9319 mono_mb_emit_byte (mb, CEE_RET);
9322 mono_mb_patch_branch (mb, b2);
9323 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9326 case STELEMREF_CLASS:
9329 <ldelema (bound check)>
9333 aklass = array->vtable->klass->element_class;
9334 vklass = value->vtable->klass;
9336 if (vklass->idepth < aklass->idepth)
9339 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9343 *array_slot_addr = value;
9347 throw new ArrayTypeMismatchException ();
9349 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9350 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9351 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9353 /* ldelema (implicit bound check) */
9354 load_array_element_address (mb);
9355 mono_mb_emit_stloc (mb, array_slot_addr);
9357 /* if (!value) goto do_store */
9358 mono_mb_emit_ldarg (mb, 2);
9359 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9361 /* aklass = array->vtable->klass->element_class */
9362 load_array_class (mb, aklass);
9364 /* vklass = value->vtable->klass */
9365 load_value_class (mb, vklass);
9367 /*if (mono_object_isinst (value, aklass)) */
9368 mono_mb_emit_ldarg (mb, 2);
9369 mono_mb_emit_ldloc (mb, aklass);
9370 mono_mb_emit_icall (mb, mono_object_isinst);
9371 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9373 /* if (vklass->idepth < aklass->idepth) goto failue */
9374 mono_mb_emit_ldloc (mb, vklass);
9375 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9376 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9378 mono_mb_emit_ldloc (mb, aklass);
9379 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9380 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9382 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9384 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9385 mono_mb_emit_ldloc (mb, vklass);
9386 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9387 mono_mb_emit_byte (mb, CEE_LDIND_I);
9389 mono_mb_emit_ldloc (mb, aklass);
9390 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9391 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9392 mono_mb_emit_icon (mb, 1);
9393 mono_mb_emit_byte (mb, CEE_SUB);
9394 mono_mb_emit_icon (mb, sizeof (void*));
9395 mono_mb_emit_byte (mb, CEE_MUL);
9396 mono_mb_emit_byte (mb, CEE_ADD);
9397 mono_mb_emit_byte (mb, CEE_LDIND_I);
9399 mono_mb_emit_ldloc (mb, aklass);
9400 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9403 mono_mb_patch_branch (mb, b1);
9404 mono_mb_emit_ldloc (mb, array_slot_addr);
9405 mono_mb_emit_ldarg (mb, 2);
9406 mono_mb_emit_byte (mb, CEE_STIND_REF);
9407 mono_mb_emit_byte (mb, CEE_RET);
9410 mono_mb_patch_branch (mb, b2);
9411 mono_mb_patch_branch (mb, b3);
9413 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9416 case STELEMREF_INTERFACE:
9423 klass = array->obj.vtable->klass->element_class;
9425 uiid = klass->interface_id;
9426 if (uiid > vt->max_interface_id)
9428 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9431 mono_array_setref (array, index, value);
9434 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9436 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9437 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9438 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9439 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9441 /* ldelema (implicit bound check) */
9442 load_array_element_address (mb);
9443 mono_mb_emit_stloc (mb, array_slot_addr);
9445 /* if (!value) goto do_store */
9446 mono_mb_emit_ldarg (mb, 2);
9447 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9449 /* klass = array->vtable->klass->element_class */
9450 load_array_class (mb, aklass);
9452 /* vt = value->vtable */
9453 mono_mb_emit_ldarg (mb, 2);
9454 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9455 mono_mb_emit_byte (mb, CEE_LDIND_I);
9456 mono_mb_emit_stloc (mb, vtable);
9458 /* uiid = klass->interface_id; */
9459 mono_mb_emit_ldloc (mb, aklass);
9460 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9461 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9462 mono_mb_emit_stloc (mb, uiid);
9464 /*if (uiid > vt->max_interface_id)*/
9465 mono_mb_emit_ldloc (mb, uiid);
9466 mono_mb_emit_ldloc (mb, vtable);
9467 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9468 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9469 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9471 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9473 /*vt->interface_bitmap*/
9474 mono_mb_emit_ldloc (mb, vtable);
9475 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9476 mono_mb_emit_byte (mb, CEE_LDIND_I);
9479 mono_mb_emit_ldloc (mb, uiid);
9480 mono_mb_emit_icon (mb, 3);
9481 mono_mb_emit_byte (mb, CEE_SHR_UN);
9483 /*vt->interface_bitmap [(uiid) >> 3]*/
9484 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9485 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9487 /*(1 << ((uiid)&7)))*/
9488 mono_mb_emit_icon (mb, 1);
9489 mono_mb_emit_ldloc (mb, uiid);
9490 mono_mb_emit_icon (mb, 7);
9491 mono_mb_emit_byte (mb, CEE_AND);
9492 mono_mb_emit_byte (mb, CEE_SHL);
9494 /*bitwise and the whole thing*/
9495 mono_mb_emit_byte (mb, CEE_AND);
9496 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9499 mono_mb_patch_branch (mb, b1);
9500 mono_mb_emit_ldloc (mb, array_slot_addr);
9501 mono_mb_emit_ldarg (mb, 2);
9502 mono_mb_emit_byte (mb, CEE_STIND_REF);
9503 mono_mb_emit_byte (mb, CEE_RET);
9506 mono_mb_patch_branch (mb, b2);
9507 mono_mb_patch_branch (mb, b3);
9508 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9512 mono_mb_emit_ldarg (mb, 0);
9513 mono_mb_emit_ldarg (mb, 1);
9514 mono_mb_emit_ldarg (mb, 2);
9515 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9516 mono_mb_emit_byte (mb, CEE_RET);
9519 #endif /* DISABLE_JIT */
9520 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9521 info->d.virtual_stelemref.kind = kind;
9522 res = mono_mb_create (mb, signature, 4, info);
9523 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9525 mono_marshal_lock ();
9526 if (!cached_methods [kind]) {
9527 cached_methods [kind] = res;
9528 mono_marshal_unlock ();
9530 mono_marshal_unlock ();
9531 mono_free_method (res);
9535 return cached_methods [kind];
9539 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9543 g_assert (array_class->rank == 1);
9544 kind = get_virtual_stelemref_kind (array_class->element_class);
9546 return get_virtual_stelemref_wrapper (kind);
9550 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9555 *nwrappers = STELEMREF_KIND_COUNT;
9556 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9557 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9558 res [i] = get_virtual_stelemref_wrapper (i);
9563 * The wrapper info for the wrapper is a WrapperInfo structure.
9566 mono_marshal_get_stelemref (void)
9568 static MonoMethod* ret = NULL;
9569 MonoMethodSignature *sig;
9570 MonoMethodBuilder *mb;
9573 guint32 b1, b2, b3, b4;
9576 int array_slot_addr;
9581 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9584 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9586 /* void stelemref (void* array, int idx, void* value) */
9587 sig->ret = &mono_defaults.void_class->byval_arg;
9588 sig->params [0] = &mono_defaults.object_class->byval_arg;
9589 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9590 sig->params [2] = &mono_defaults.object_class->byval_arg;
9593 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9594 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9595 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9599 <ldelema (bound check)>
9603 aklass = array->vtable->klass->element_class;
9604 vklass = value->vtable->klass;
9606 if (vklass->idepth < aklass->idepth)
9609 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9613 *array_slot_addr = value;
9617 if (mono_object_isinst (value, aklass))
9620 throw new ArrayTypeMismatchException ();
9623 /* ldelema (implicit bound check) */
9624 mono_mb_emit_ldarg (mb, 0);
9625 mono_mb_emit_ldarg (mb, 1);
9626 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9627 mono_mb_emit_stloc (mb, array_slot_addr);
9629 /* if (!value) goto do_store */
9630 mono_mb_emit_ldarg (mb, 2);
9631 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9633 /* aklass = array->vtable->klass->element_class */
9634 mono_mb_emit_ldarg (mb, 0);
9635 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9636 mono_mb_emit_byte (mb, CEE_LDIND_I);
9637 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9638 mono_mb_emit_byte (mb, CEE_LDIND_I);
9639 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9640 mono_mb_emit_byte (mb, CEE_LDIND_I);
9641 mono_mb_emit_stloc (mb, aklass);
9643 /* vklass = value->vtable->klass */
9644 mono_mb_emit_ldarg (mb, 2);
9645 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9646 mono_mb_emit_byte (mb, CEE_LDIND_I);
9647 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9648 mono_mb_emit_byte (mb, CEE_LDIND_I);
9649 mono_mb_emit_stloc (mb, vklass);
9651 /* if (vklass->idepth < aklass->idepth) goto failue */
9652 mono_mb_emit_ldloc (mb, vklass);
9653 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9654 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9656 mono_mb_emit_ldloc (mb, aklass);
9657 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9658 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9660 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9662 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9663 mono_mb_emit_ldloc (mb, vklass);
9664 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9665 mono_mb_emit_byte (mb, CEE_LDIND_I);
9667 mono_mb_emit_ldloc (mb, aklass);
9668 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9669 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9670 mono_mb_emit_icon (mb, 1);
9671 mono_mb_emit_byte (mb, CEE_SUB);
9672 mono_mb_emit_icon (mb, sizeof (void*));
9673 mono_mb_emit_byte (mb, CEE_MUL);
9674 mono_mb_emit_byte (mb, CEE_ADD);
9675 mono_mb_emit_byte (mb, CEE_LDIND_I);
9677 mono_mb_emit_ldloc (mb, aklass);
9679 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9681 copy_pos = mono_mb_get_label (mb);
9683 mono_mb_patch_branch (mb, b1);
9684 mono_mb_emit_ldloc (mb, array_slot_addr);
9685 mono_mb_emit_ldarg (mb, 2);
9686 mono_mb_emit_byte (mb, CEE_STIND_REF);
9688 mono_mb_emit_byte (mb, CEE_RET);
9691 mono_mb_patch_branch (mb, b2);
9692 mono_mb_patch_branch (mb, b3);
9694 mono_mb_emit_ldarg (mb, 2);
9695 mono_mb_emit_ldloc (mb, aklass);
9696 mono_mb_emit_icall (mb, mono_object_isinst);
9698 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9699 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9700 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9702 mono_mb_emit_byte (mb, CEE_RET);
9704 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9705 ret = mono_mb_create (mb, sig, 4, info);
9712 * mono_marshal_get_gsharedvt_in_wrapper:
9714 * This wrapper handles calls from normal code to gsharedvt code.
9716 * The wrapper info for the wrapper is a WrapperInfo structure.
9719 mono_marshal_get_gsharedvt_in_wrapper (void)
9721 static MonoMethod* ret = NULL;
9722 MonoMethodSignature *sig;
9723 MonoMethodBuilder *mb;
9729 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9731 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9732 sig->ret = &mono_defaults.void_class->byval_arg;
9736 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9738 mono_mb_emit_byte (mb, CEE_RET);
9740 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9741 ret = mono_mb_create (mb, sig, 4, info);
9748 * mono_marshal_get_gsharedvt_out_wrapper:
9750 * This wrapper handles calls from gsharedvt code to normal code.
9752 * The wrapper info for the wrapper is a WrapperInfo structure.
9755 mono_marshal_get_gsharedvt_out_wrapper (void)
9757 static MonoMethod* ret = NULL;
9758 MonoMethodSignature *sig;
9759 MonoMethodBuilder *mb;
9765 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9767 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9768 sig->ret = &mono_defaults.void_class->byval_arg;
9772 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9774 mono_mb_emit_byte (mb, CEE_RET);
9776 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9777 ret = mono_mb_create (mb, sig, 4, info);
9789 /* LOCKING: vars accessed under the marshal lock */
9790 static ArrayElemAddr *elem_addr_cache = NULL;
9791 static int elem_addr_cache_size = 0;
9792 static int elem_addr_cache_next = 0;
9795 * mono_marshal_get_array_address:
9796 * @rank: rank of the array type
9797 * @elem_size: size in bytes of an element of an array.
9799 * Returns a MonoMethod that implements the code to get the address
9800 * of an element in a multi-dimenasional array of @rank dimensions.
9801 * The returned method takes an array as the first argument and then
9802 * @rank indexes for the @rank dimensions.
9803 * If ELEM_SIZE is 0, read the array size from the array object.
9806 mono_marshal_get_array_address (int rank, int elem_size)
9809 MonoMethodBuilder *mb;
9810 MonoMethodSignature *sig;
9813 int i, bounds, ind, realidx;
9814 int branch_pos, *branch_positions;
9818 mono_marshal_lock ();
9819 for (i = 0; i < elem_addr_cache_next; ++i) {
9820 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9821 ret = elem_addr_cache [i].method;
9825 mono_marshal_unlock ();
9829 branch_positions = g_new0 (int, rank);
9831 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9833 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9834 sig->ret = &mono_defaults.int_class->byval_arg;
9835 sig->params [0] = &mono_defaults.object_class->byval_arg;
9836 for (i = 0; i < rank; ++i) {
9837 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9840 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9841 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9845 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9846 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9847 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9849 /* bounds = array->bounds; */
9850 mono_mb_emit_ldarg (mb, 0);
9851 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9852 mono_mb_emit_byte (mb, CEE_LDIND_I);
9853 mono_mb_emit_stloc (mb, bounds);
9855 /* ind is the overall element index, realidx is the partial index in a single dimension */
9856 /* ind = idx0 - bounds [0].lower_bound */
9857 mono_mb_emit_ldarg (mb, 1);
9858 mono_mb_emit_ldloc (mb, bounds);
9859 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9860 mono_mb_emit_byte (mb, CEE_ADD);
9861 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9862 mono_mb_emit_byte (mb, CEE_SUB);
9863 mono_mb_emit_stloc (mb, ind);
9864 /* if (ind >= bounds [0].length) goto exeception; */
9865 mono_mb_emit_ldloc (mb, ind);
9866 mono_mb_emit_ldloc (mb, bounds);
9867 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9868 mono_mb_emit_byte (mb, CEE_ADD);
9869 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9870 /* note that we use unsigned comparison */
9871 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9873 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9874 * We could also decide to ignore the passed elem_size and get it
9875 * from the array object, to reduce the number of methods we generate:
9876 * the additional cost is 3 memory loads and a non-immediate mul.
9878 for (i = 1; i < rank; ++i) {
9879 /* realidx = idxi - bounds [i].lower_bound */
9880 mono_mb_emit_ldarg (mb, 1 + i);
9881 mono_mb_emit_ldloc (mb, bounds);
9882 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9883 mono_mb_emit_byte (mb, CEE_ADD);
9884 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9885 mono_mb_emit_byte (mb, CEE_SUB);
9886 mono_mb_emit_stloc (mb, realidx);
9887 /* if (realidx >= bounds [i].length) goto exeception; */
9888 mono_mb_emit_ldloc (mb, realidx);
9889 mono_mb_emit_ldloc (mb, bounds);
9890 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9891 mono_mb_emit_byte (mb, CEE_ADD);
9892 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9893 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9894 /* ind = ind * bounds [i].length + realidx */
9895 mono_mb_emit_ldloc (mb, ind);
9896 mono_mb_emit_ldloc (mb, bounds);
9897 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9898 mono_mb_emit_byte (mb, CEE_ADD);
9899 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9900 mono_mb_emit_byte (mb, CEE_MUL);
9901 mono_mb_emit_ldloc (mb, realidx);
9902 mono_mb_emit_byte (mb, CEE_ADD);
9903 mono_mb_emit_stloc (mb, ind);
9906 /* return array->vector + ind * element_size */
9907 mono_mb_emit_ldarg (mb, 0);
9908 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9909 mono_mb_emit_ldloc (mb, ind);
9911 mono_mb_emit_icon (mb, elem_size);
9913 /* Load arr->vtable->klass->sizes.element_class */
9914 mono_mb_emit_ldarg (mb, 0);
9915 mono_mb_emit_byte (mb, CEE_CONV_I);
9916 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9917 mono_mb_emit_byte (mb, CEE_ADD);
9918 mono_mb_emit_byte (mb, CEE_LDIND_I);
9919 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9920 mono_mb_emit_byte (mb, CEE_ADD);
9921 mono_mb_emit_byte (mb, CEE_LDIND_I);
9922 /* sizes is an union, so this reads sizes.element_size */
9923 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9924 mono_mb_emit_byte (mb, CEE_ADD);
9925 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9927 mono_mb_emit_byte (mb, CEE_MUL);
9928 mono_mb_emit_byte (mb, CEE_ADD);
9929 mono_mb_emit_byte (mb, CEE_RET);
9931 /* patch the branches to get here and throw */
9932 for (i = 1; i < rank; ++i) {
9933 mono_mb_patch_branch (mb, branch_positions [i]);
9935 mono_mb_patch_branch (mb, branch_pos);
9936 /* throw exception */
9937 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9939 g_free (branch_positions);
9940 #endif /* DISABLE_JIT */
9942 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9943 info->d.element_addr.rank = rank;
9944 info->d.element_addr.elem_size = elem_size;
9945 ret = mono_mb_create (mb, sig, 4, info);
9948 /* cache the result */
9950 mono_marshal_lock ();
9951 for (i = 0; i < elem_addr_cache_next; ++i) {
9952 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9953 /* FIXME: free ret */
9954 ret = elem_addr_cache [i].method;
9960 if (elem_addr_cache_next >= elem_addr_cache_size) {
9961 int new_size = elem_addr_cache_size + 4;
9962 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9963 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9964 g_free (elem_addr_cache);
9965 elem_addr_cache = new_array;
9966 elem_addr_cache_size = new_size;
9968 elem_addr_cache [elem_addr_cache_next].rank = rank;
9969 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9970 elem_addr_cache [elem_addr_cache_next].method = ret;
9971 elem_addr_cache_next ++;
9973 mono_marshal_unlock ();
9978 * mono_marshal_get_array_accessor_wrapper:
9980 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
9983 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
9985 MonoMethodSignature *sig;
9986 MonoMethodBuilder *mb;
9990 MonoGenericContext *ctx = NULL;
9991 MonoMethod *orig_method = NULL;
9992 MonoGenericContainer *container = NULL;
9996 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
9997 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
9998 * FIXME: Use generic methods.
10005 g_assert_not_reached ();
10007 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10008 if ((res = mono_marshal_find_in_cache (cache, method)))
10012 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10015 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10017 #ifndef DISABLE_JIT
10018 /* Call the method */
10020 mono_mb_emit_ldarg (mb, 0);
10021 for (i = 0; i < sig->param_count; i++)
10022 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10026 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10027 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10029 mono_mb_emit_managed_call (mb, method, NULL);
10031 mono_mb_emit_byte (mb, CEE_RET);
10034 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10035 info->d.array_accessor.method = method;
10039 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10040 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10042 res = mono_mb_create_and_cache_full (cache, method,
10043 mb, sig, sig->param_count + 16,
10052 mono_marshal_alloc (gulong size)
10057 res = CoTaskMemAlloc (size);
10059 res = g_try_malloc ((gulong)size);
10061 mono_gc_out_of_memory ((gulong)size);
10067 mono_marshal_free (gpointer ptr)
10070 CoTaskMemFree (ptr);
10077 mono_marshal_free_array (gpointer *ptr, int size)
10084 for (i = 0; i < size; i++)
10090 mono_marshal_string_to_utf16 (MonoString *s)
10092 return s ? mono_string_chars (s) : NULL;
10096 mono_marshal_string_to_utf16_copy (MonoString *s)
10101 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
10102 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10103 res [mono_string_length (s)] = 0;
10109 * mono_marshal_set_last_error:
10111 * This function is invoked to set the last error value from a P/Invoke call
10112 * which has SetLastError set.
10115 mono_marshal_set_last_error (void)
10118 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10120 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10125 mono_marshal_set_last_error_windows (int error)
10128 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10133 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10134 gpointer dest, gint32 length)
10139 MONO_CHECK_ARG_NULL (src,);
10140 MONO_CHECK_ARG_NULL (dest,);
10142 if (src->obj.vtable->klass->rank != 1) {
10143 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10146 if (start_index < 0) {
10147 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10151 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10154 if (start_index + length > mono_array_length (src)) {
10155 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10159 element_size = mono_array_element_size (src->obj.vtable->klass);
10161 /* no references should be involved */
10162 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10164 memcpy (dest, source_addr, length * element_size);
10168 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10169 MonoArray *dest, gint32 length)
10174 MONO_CHECK_ARG_NULL (src,);
10175 MONO_CHECK_ARG_NULL (dest,);
10177 if (dest->obj.vtable->klass->rank != 1) {
10178 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10181 if (start_index < 0) {
10182 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10186 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10189 if (start_index + length > mono_array_length (dest)) {
10190 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10193 element_size = mono_array_element_size (dest->obj.vtable->klass);
10195 /* no references should be involved */
10196 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10198 memcpy (dest_addr, src, length * element_size);
10202 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10207 return mono_string_new (mono_domain_get (), ptr);
10211 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10214 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10217 return mono_string_new_len (mono_domain_get (), ptr, len);
10222 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10224 MonoDomain *domain = mono_domain_get ();
10234 return mono_string_new_utf16 (domain, ptr, len);
10238 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10240 MonoDomain *domain = mono_domain_get ();
10243 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10246 return mono_string_new_utf16 (domain, ptr, len);
10251 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10253 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10257 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10263 MONO_CHECK_ARG_NULL (rtype, 0);
10265 type = rtype->type;
10266 klass = mono_class_from_mono_type (type);
10267 if (!mono_class_init (klass)) {
10268 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10272 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10274 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10275 return sizeof (gpointer);
10276 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10278 MonoException *exc;
10280 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10281 exc = mono_get_exception_argument ("t", msg);
10283 mono_set_pending_exception (exc);
10287 return mono_class_native_size (klass, NULL);
10291 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10293 MonoMethod *method;
10296 MONO_CHECK_ARG_NULL (obj,);
10297 MONO_CHECK_ARG_NULL (dst,);
10299 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10303 pa [2] = &delete_old;
10305 mono_runtime_invoke (method, NULL, pa, NULL);
10309 ptr_to_structure (gpointer src, MonoObject *dst)
10311 MonoMethod *method;
10314 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10319 mono_runtime_invoke (method, NULL, pa, NULL);
10323 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10327 MONO_CHECK_ARG_NULL (src,);
10328 MONO_CHECK_ARG_NULL (dst,);
10330 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10332 if (t->type == MONO_TYPE_VALUETYPE) {
10333 MonoException *exc;
10336 tmp = g_strdup_printf ("Destination is a boxed value type.");
10337 exc = mono_get_exception_argument ("dst", tmp);
10340 mono_set_pending_exception (exc);
10344 ptr_to_structure (src, dst);
10348 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10351 MonoDomain *domain = mono_domain_get ();
10356 MONO_CHECK_ARG_NULL (type, NULL);
10358 klass = mono_class_from_mono_type (type->type);
10359 if (!mono_class_init (klass)) {
10360 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10364 res = mono_object_new (domain, klass);
10366 ptr_to_structure (src, res);
10372 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10374 MonoMarshalType *info;
10377 int match_index = -1;
10379 MONO_CHECK_ARG_NULL (type, 0);
10380 MONO_CHECK_ARG_NULL (field_name, 0);
10382 fname = mono_string_to_utf8 (field_name);
10383 klass = mono_class_from_mono_type (type->type);
10384 if (!mono_class_init (klass)) {
10385 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10389 while (klass && match_index == -1) {
10390 MonoClassField* field;
10392 gpointer iter = NULL;
10393 while ((field = mono_class_get_fields (klass, &iter))) {
10394 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10396 if (!strcmp (fname, mono_field_get_name (field))) {
10403 if (match_index == -1)
10404 klass = klass->parent;
10409 if(match_index == -1) {
10410 MonoException* exc;
10413 /* Get back original class instance */
10414 klass = mono_class_from_mono_type (type->type);
10416 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10417 exc = mono_get_exception_argument ("fieldName", tmp);
10420 mono_set_pending_exception ((MonoException*)exc);
10424 info = mono_marshal_load_type_info (klass);
10425 return info->fields [match_index].offset;
10429 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10434 tres = mono_string_to_utf8 (string);
10438 len = strlen (tres) + 1;
10439 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10440 memcpy (ret, tres, len);
10445 return mono_string_to_utf8 (string);
10450 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10452 if (string == NULL)
10455 #ifdef TARGET_WIN32
10456 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10457 ((mono_string_length (string) + 1) * 2);
10459 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10461 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10462 res [mono_string_length (string)] = 0;
10468 mono_struct_delete_old (MonoClass *klass, char *ptr)
10470 MonoMarshalType *info;
10473 info = mono_marshal_load_type_info (klass);
10475 for (i = 0; i < info->num_fields; i++) {
10476 MonoMarshalConv conv;
10477 MonoType *ftype = info->fields [i].field->type;
10480 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10483 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10484 klass->unicode, &conv);
10486 cpos = ptr + info->fields [i].offset;
10489 case MONO_MARSHAL_CONV_NONE:
10490 if (MONO_TYPE_ISSTRUCT (ftype)) {
10491 mono_struct_delete_old (ftype->data.klass, cpos);
10495 case MONO_MARSHAL_CONV_STR_LPWSTR:
10496 /* We assume this field points inside a MonoString */
10498 case MONO_MARSHAL_CONV_STR_LPTSTR:
10499 #ifdef TARGET_WIN32
10500 /* We assume this field points inside a MonoString
10504 case MONO_MARSHAL_CONV_STR_LPSTR:
10505 case MONO_MARSHAL_CONV_STR_BSTR:
10506 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10507 case MONO_MARSHAL_CONV_STR_TBSTR:
10508 mono_marshal_free (*(gpointer *)cpos);
10518 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10522 MONO_CHECK_ARG_NULL (src,);
10523 MONO_CHECK_ARG_NULL (type,);
10525 klass = mono_class_from_mono_type (type->type);
10526 if (!mono_class_init (klass)) {
10527 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10531 mono_struct_delete_old (klass, (char *)src);
10535 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10538 size_t s = (size_t)size;
10541 /* This returns a valid pointer for size 0 on MS.NET */
10545 res = GlobalAlloc (GMEM_FIXED, s);
10547 res = g_try_malloc (s);
10550 mono_gc_out_of_memory (s);
10556 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10559 size_t s = (size_t)size;
10562 mono_gc_out_of_memory (s);
10567 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10569 res = g_try_realloc (ptr, s);
10572 mono_gc_out_of_memory (s);
10578 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10588 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10593 res = CoTaskMemAlloc (size);
10595 if ((gulong)size == 0)
10596 /* This returns a valid pointer for size 0 on MS.NET */
10599 res = g_try_malloc ((gulong)size);
10602 mono_gc_out_of_memory ((gulong)size);
10607 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10610 CoTaskMemFree (ptr);
10617 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10622 res = CoTaskMemRealloc (ptr, size);
10624 res = g_try_realloc (ptr, (gulong)size);
10627 mono_gc_out_of_memory ((gulong)size);
10632 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10634 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10638 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10640 MonoClass *klass = mono_type_get_class (type->type);
10641 if (!mono_class_init (klass)) {
10642 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10646 return mono_ftnptr_to_delegate (klass, ftn);
10650 * mono_marshal_is_loading_type_info:
10652 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10656 mono_marshal_is_loading_type_info (MonoClass *klass)
10658 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10660 return g_slist_find (loads_list, klass) != NULL;
10664 * mono_marshal_load_type_info:
10666 * Initialize klass->marshal_info using information from metadata. This function can
10667 * recursively call itself, and the caller is responsible to avoid that by calling
10668 * mono_marshal_is_loading_type_info () beforehand.
10670 * LOCKING: Acquires the loader lock.
10673 mono_marshal_load_type_info (MonoClass* klass)
10676 guint32 native_size = 0, min_align = 1, packing;
10677 MonoMarshalType *info;
10678 MonoClassField* field;
10681 GSList *loads_list;
10683 g_assert (klass != NULL);
10685 if (klass->marshal_info)
10686 return klass->marshal_info;
10688 if (!klass->inited)
10689 mono_class_init (klass);
10691 if (klass->marshal_info)
10692 return klass->marshal_info;
10695 * This function can recursively call itself, so we keep the list of classes which are
10696 * under initialization in a TLS list.
10698 g_assert (!mono_marshal_is_loading_type_info (klass));
10699 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10700 loads_list = g_slist_prepend (loads_list, klass);
10701 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10704 while ((field = mono_class_get_fields (klass, &iter))) {
10705 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10707 if (mono_field_is_deleted (field))
10712 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10714 /* The mempool is protected by the loader lock */
10715 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10716 info->num_fields = count;
10718 /* Try to find a size for this type in metadata */
10719 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10721 if (klass->parent) {
10722 int parent_size = mono_class_native_size (klass->parent, NULL);
10724 /* Add parent size to real size */
10725 native_size += parent_size;
10726 info->native_size = parent_size;
10729 packing = klass->packing_size ? klass->packing_size : 8;
10732 while ((field = mono_class_get_fields (klass, &iter))) {
10736 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10739 if (mono_field_is_deleted (field))
10741 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10742 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10743 NULL, NULL, &info->fields [j].mspec);
10745 info->fields [j].field = field;
10747 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10748 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10749 /* This field is a hack inserted by MCS to empty structures */
10754 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10755 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10756 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10757 &align, TRUE, klass->unicode);
10758 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10759 min_align = MAX (align, min_align);
10760 info->fields [j].offset = info->native_size;
10761 info->fields [j].offset += align - 1;
10762 info->fields [j].offset &= ~(align - 1);
10763 info->native_size = info->fields [j].offset + size;
10765 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10766 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10767 &align, TRUE, klass->unicode);
10768 min_align = MAX (align, min_align);
10769 info->fields [j].offset = field->offset - sizeof (MonoObject);
10770 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10776 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10777 info->native_size = MAX (native_size, info->native_size);
10779 * If the provided Size is equal or larger than the calculated size, and there
10780 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10782 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10783 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10786 min_align = MIN (min_align, packing);
10790 if (info->native_size & (min_align - 1)) {
10791 info->native_size += min_align - 1;
10792 info->native_size &= ~(min_align - 1);
10795 info->min_align = min_align;
10797 /* Update the class's blittable info, if the layouts don't match */
10798 if (info->native_size != mono_class_value_size (klass, NULL))
10799 klass->blittable = FALSE;
10801 /* If this is an array type, ensure that we have element info */
10802 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10803 mono_marshal_load_type_info (klass->element_class);
10806 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10807 loads_list = g_slist_remove (loads_list, klass);
10808 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10810 mono_marshal_lock ();
10811 if (!klass->marshal_info) {
10812 /*We do double-checking locking on marshal_info */
10813 mono_memory_barrier ();
10814 klass->marshal_info = info;
10816 mono_marshal_unlock ();
10818 return klass->marshal_info;
10822 * mono_class_native_size:
10825 * Returns: the native size of an object instance (when marshaled
10826 * to unmanaged code)
10829 mono_class_native_size (MonoClass *klass, guint32 *align)
10831 if (!klass->marshal_info) {
10832 if (mono_marshal_is_loading_type_info (klass)) {
10837 mono_marshal_load_type_info (klass);
10842 *align = klass->marshal_info->min_align;
10844 return klass->marshal_info->native_size;
10848 * mono_type_native_stack_size:
10849 * @t: the type to return the size it uses on the stack
10851 * Returns: the number of bytes required to hold an instance of this
10852 * type on the native stack
10855 mono_type_native_stack_size (MonoType *t, guint32 *align)
10859 g_assert (t != NULL);
10865 *align = sizeof (gpointer);
10866 return sizeof (gpointer);
10870 case MONO_TYPE_BOOLEAN:
10871 case MONO_TYPE_CHAR:
10882 case MONO_TYPE_STRING:
10883 case MONO_TYPE_OBJECT:
10884 case MONO_TYPE_CLASS:
10885 case MONO_TYPE_SZARRAY:
10886 case MONO_TYPE_PTR:
10887 case MONO_TYPE_FNPTR:
10888 case MONO_TYPE_ARRAY:
10889 *align = sizeof (gpointer);
10890 return sizeof (gpointer);
10895 *align = MONO_ABI_ALIGNOF (double);
10899 *align = MONO_ABI_ALIGNOF (gint64);
10901 case MONO_TYPE_GENERICINST:
10902 if (!mono_type_generic_inst_is_valuetype (t)) {
10903 *align = sizeof (gpointer);
10904 return sizeof (gpointer);
10907 case MONO_TYPE_TYPEDBYREF:
10908 case MONO_TYPE_VALUETYPE: {
10910 MonoClass *klass = mono_class_from_mono_type (t);
10912 if (klass->enumtype)
10913 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10915 size = mono_class_native_size (klass, align);
10916 *align = *align + 3;
10926 g_error ("type 0x%02x unknown", t->type);
10932 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10933 gboolean as_field, gboolean unicode)
10935 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10938 switch (native_type) {
10939 case MONO_NATIVE_BOOLEAN:
10942 case MONO_NATIVE_I1:
10943 case MONO_NATIVE_U1:
10946 case MONO_NATIVE_I2:
10947 case MONO_NATIVE_U2:
10948 case MONO_NATIVE_VARIANTBOOL:
10951 case MONO_NATIVE_I4:
10952 case MONO_NATIVE_U4:
10953 case MONO_NATIVE_ERROR:
10956 case MONO_NATIVE_I8:
10957 case MONO_NATIVE_U8:
10958 *align = MONO_ABI_ALIGNOF (gint64);
10960 case MONO_NATIVE_R4:
10963 case MONO_NATIVE_R8:
10964 *align = MONO_ABI_ALIGNOF (double);
10966 case MONO_NATIVE_INT:
10967 case MONO_NATIVE_UINT:
10968 case MONO_NATIVE_LPSTR:
10969 case MONO_NATIVE_LPWSTR:
10970 case MONO_NATIVE_LPTSTR:
10971 case MONO_NATIVE_BSTR:
10972 case MONO_NATIVE_ANSIBSTR:
10973 case MONO_NATIVE_TBSTR:
10974 case MONO_NATIVE_LPARRAY:
10975 case MONO_NATIVE_SAFEARRAY:
10976 case MONO_NATIVE_IUNKNOWN:
10977 case MONO_NATIVE_IDISPATCH:
10978 case MONO_NATIVE_INTERFACE:
10979 case MONO_NATIVE_ASANY:
10980 case MONO_NATIVE_FUNC:
10981 case MONO_NATIVE_LPSTRUCT:
10982 *align = MONO_ABI_ALIGNOF (gpointer);
10983 return sizeof (gpointer);
10984 case MONO_NATIVE_STRUCT:
10985 klass = mono_class_from_mono_type (type);
10986 if (klass == mono_defaults.object_class &&
10987 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10991 return mono_class_native_size (klass, align);
10992 case MONO_NATIVE_BYVALTSTR: {
10993 int esize = unicode ? 2: 1;
10996 return mspec->data.array_data.num_elem * esize;
10998 case MONO_NATIVE_BYVALARRAY: {
10999 // FIXME: Have to consider ArraySubType
11001 klass = mono_class_from_mono_type (type);
11002 if (klass->element_class == mono_defaults.char_class) {
11003 esize = unicode ? 2 : 1;
11006 esize = mono_class_native_size (klass->element_class, align);
11009 return mspec->data.array_data.num_elem * esize;
11011 case MONO_NATIVE_CUSTOM:
11012 *align = sizeof (gpointer);
11013 return sizeof (gpointer);
11015 case MONO_NATIVE_CURRENCY:
11016 case MONO_NATIVE_VBBYREFSTR:
11018 g_error ("native type %02x not implemented", native_type);
11021 g_assert_not_reached ();
11026 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11034 t = &o->vtable->klass->byval_arg;
11038 case MONO_TYPE_PTR:
11041 case MONO_TYPE_BOOLEAN:
11044 case MONO_TYPE_CHAR:
11049 return mono_object_unbox (o);
11051 case MONO_TYPE_STRING:
11052 switch (string_encoding) {
11053 case MONO_NATIVE_LPWSTR:
11054 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11056 case MONO_NATIVE_LPSTR:
11057 return mono_string_to_lpstr ((MonoString*)o);
11060 g_warning ("marshaling conversion %d not implemented", string_encoding);
11061 g_assert_not_reached ();
11064 case MONO_TYPE_CLASS:
11065 case MONO_TYPE_VALUETYPE: {
11066 MonoMethod *method;
11069 MonoBoolean delete_old = FALSE;
11071 klass = t->data.klass;
11073 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11076 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11077 klass->blittable || klass->enumtype))
11078 return mono_object_unbox (o);
11080 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11082 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11083 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11087 pa [2] = &delete_old;
11089 mono_runtime_invoke (method, NULL, pa, NULL);
11097 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11102 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11110 t = &o->vtable->klass->byval_arg;
11112 case MONO_TYPE_STRING:
11113 switch (string_encoding) {
11114 case MONO_NATIVE_LPWSTR:
11115 case MONO_NATIVE_LPSTR:
11116 mono_marshal_free (ptr);
11119 g_warning ("marshaling conversion %d not implemented", string_encoding);
11120 g_assert_not_reached ();
11123 case MONO_TYPE_CLASS:
11124 case MONO_TYPE_VALUETYPE: {
11125 klass = t->data.klass;
11127 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11128 klass->blittable || klass->enumtype))
11131 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11132 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11138 mono_runtime_invoke (method, NULL, pa, NULL);
11141 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11142 mono_struct_delete_old (klass, (char *)ptr);
11145 mono_marshal_free (ptr);
11154 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11156 MonoMethodSignature *sig, *csig;
11157 MonoMethodBuilder *mb;
11162 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11163 mb->method->slot = -1;
11165 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11166 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11168 sig = mono_method_signature (method);
11169 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11170 csig->generic_param_count = 0;
11172 #ifndef DISABLE_JIT
11173 mono_mb_emit_ldarg (mb, 0);
11174 for (i = 0; i < csig->param_count; i++)
11175 mono_mb_emit_ldarg (mb, i + 1);
11176 mono_mb_emit_managed_call (mb, method, NULL);
11177 mono_mb_emit_byte (mb, CEE_RET);
11179 /* We can corlib internal methods */
11180 mb->skip_visibility = TRUE;
11182 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11183 info->d.generic_array_helper.method = method;
11184 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11192 * The mono_win32_compat_* functions are implementations of inline
11193 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11194 * although not exported by kernel32.
11196 * We map the appropiate kernel32 entries to these functions using
11197 * dllmaps declared in the global etc/mono/config.
11201 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11203 if (!dest || !source)
11206 memcpy (dest, source, length);
11210 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11212 memset (dest, fill, length);
11216 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11218 if (!dest || !source)
11221 memmove (dest, source, length);
11225 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11227 memset (dest, 0, length);
11231 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11236 for (i = 0; i < len; ++i)
11240 g_assert (i < len);
11243 while (byte && !(byte & 1))
11245 g_assert (byte == 1);
11248 *bitmask = buf [i];
11252 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11254 MonoMethodBuilder *mb;
11255 MonoMethodSignature *sig, *csig;
11256 MonoExceptionClause *clause;
11261 int i, param_count, sig_size, pos_leave;
11262 int coop_gc_var, coop_gc_dummy_local;
11266 klass = method->klass;
11267 image = method->klass->image;
11269 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11271 if ((res = mono_marshal_find_in_cache (cache, method)))
11274 sig = mono_method_signature (method);
11275 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11277 /* add "this" and exception param */
11278 param_count = sig->param_count + sig->hasthis + 1;
11280 /* dup & extend signature */
11281 csig = mono_metadata_signature_alloc (image, param_count);
11282 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11283 memcpy (csig, sig, sig_size);
11284 csig->param_count = param_count;
11287 csig->call_convention = MONO_CALL_DEFAULT;
11289 if (sig->hasthis) {
11291 csig->params [0] = &klass->byval_arg;
11292 /* move params up by one */
11293 for (i = 0; i < sig->param_count; i++)
11294 csig->params [i + 1] = sig->params [i];
11297 /* setup exception param as byref+[out] */
11298 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11299 &mono_defaults.exception_class->byval_arg);
11300 csig->params [param_count - 1]->byref = 1;
11301 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11303 /* convert struct return to object */
11304 if (MONO_TYPE_ISSTRUCT (sig->ret))
11305 csig->ret = &mono_defaults.object_class->byval_arg;
11307 #ifndef DISABLE_JIT
11308 /* local 0 (temp for exception object) */
11309 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11311 /* local 1 (temp for result) */
11312 if (!MONO_TYPE_IS_VOID (sig->ret))
11313 mono_mb_add_local (mb, sig->ret);
11315 if (mono_threads_is_coop_enabled ()) {
11316 /* local 4, the local to be used when calling the reset_blocking funcs */
11317 /* tons of code hardcode 3 to be the return var */
11318 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11319 /* local 5, the local used to get a stack address for suspend funcs */
11320 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11323 /* clear exception arg */
11324 mono_mb_emit_ldarg (mb, param_count - 1);
11325 mono_mb_emit_byte (mb, CEE_LDNULL);
11326 mono_mb_emit_byte (mb, CEE_STIND_REF);
11328 if (mono_threads_is_coop_enabled ()) {
11329 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11330 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11331 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11332 mono_mb_emit_stloc (mb, coop_gc_var);
11336 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11337 clause->try_offset = mono_mb_get_label (mb);
11339 /* push method's args */
11340 for (i = 0; i < param_count - 1; i++) {
11344 mono_mb_emit_ldarg (mb, i);
11346 /* get the byval type of the param */
11347 klass = mono_class_from_mono_type (csig->params [i]);
11348 type = &klass->byval_arg;
11350 /* unbox struct args */
11351 if (MONO_TYPE_ISSTRUCT (type)) {
11352 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11354 /* byref args & and the "this" arg must remain a ptr.
11355 Otherwise make a copy of the value type */
11356 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11357 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11359 csig->params [i] = &mono_defaults.object_class->byval_arg;
11364 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11365 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11367 mono_mb_emit_op (mb, CEE_CALL, method);
11369 /* save result at local 1 */
11370 if (!MONO_TYPE_IS_VOID (sig->ret))
11371 mono_mb_emit_stloc (mb, 1);
11373 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11376 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11377 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11378 clause->data.catch_class = mono_defaults.object_class;
11380 clause->handler_offset = mono_mb_get_label (mb);
11382 /* store exception at local 0 */
11383 mono_mb_emit_stloc (mb, 0);
11384 mono_mb_emit_ldarg (mb, param_count - 1);
11385 mono_mb_emit_ldloc (mb, 0);
11386 mono_mb_emit_byte (mb, CEE_STIND_REF);
11387 mono_mb_emit_branch (mb, CEE_LEAVE);
11389 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11391 mono_mb_set_clauses (mb, 1, clause);
11393 mono_mb_patch_branch (mb, pos_leave);
11396 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11397 mono_mb_emit_ldloc (mb, 1);
11399 /* box the return value */
11400 if (MONO_TYPE_ISSTRUCT (sig->ret))
11401 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11404 if (mono_threads_is_coop_enabled ()) {
11405 /* XXX merge reset_blocking_end with detach */
11406 mono_mb_emit_ldloc (mb, coop_gc_var);
11407 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11408 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11411 mono_mb_emit_byte (mb, CEE_RET);
11414 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11421 * mono_marshal_free_dynamic_wrappers:
11423 * Free wrappers of the dynamic method METHOD.
11426 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11428 MonoImage *image = method->klass->image;
11430 g_assert (method_is_dynamic (method));
11432 /* This could be called during shutdown */
11433 if (marshal_mutex_initialized)
11434 mono_marshal_lock ();
11436 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11437 * they could be shared with other methods ?
11439 if (image->wrapper_caches.runtime_invoke_direct_cache)
11440 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11441 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11442 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11443 // FIXME: Need to clear the caches in other images as well
11444 if (image->delegate_bound_static_invoke_cache)
11445 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11447 if (marshal_mutex_initialized)
11448 mono_marshal_unlock ();