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/threadpool.h"
29 #include "mono/metadata/threads.h"
30 #include "mono/metadata/monitor.h"
31 #include "mono/metadata/metadata-internals.h"
32 #include "mono/metadata/domain-internals.h"
33 #include "mono/metadata/gc-internal.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-internal.h"
38 #include "mono/metadata/cominterop.h"
39 #include "mono/metadata/remoting.h"
40 #include "mono/metadata/reflection-internals.h"
41 #include "mono/utils/mono-counters.h"
42 #include "mono/utils/mono-tls.h"
43 #include "mono/utils/mono-memory-model.h"
44 #include "mono/utils/atomic.h"
45 #include <mono/utils/mono-threads.h>
50 /* #define DEBUG_RUNTIME_CODE */
52 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
56 #include "mono/cil/opcode.def"
62 * This mutex protects the various marshalling related caches in MonoImage
63 * and a few other data structures static to this file.
65 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
66 * runtime locking latice. Which means it can take simple locks suck as the image lock.
68 #define mono_marshal_lock() mono_locks_acquire (&marshal_mutex, MarshalLock)
69 #define mono_marshal_unlock() mono_locks_release (&marshal_mutex, MarshalLock)
70 static mono_mutex_t marshal_mutex;
71 static gboolean marshal_mutex_initialized;
73 static MonoNativeTlsKey last_error_tls_id;
75 static MonoNativeTlsKey load_type_info_tls_id;
77 static gboolean use_aot_wrappers;
80 delegate_hash_table_add (MonoDelegate *d);
83 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
86 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
89 mono_struct_delete_old (MonoClass *klass, char *ptr);
92 mono_marshal_string_to_utf16 (MonoString *s);
95 mono_marshal_string_to_utf16_copy (MonoString *s);
98 mono_string_to_lpstr (MonoString *string_obj);
100 static MonoStringBuilder *
101 mono_string_utf8_to_builder2 (char *text);
103 static MonoStringBuilder *
104 mono_string_utf16_to_builder2 (gunichar2 *text);
107 mono_string_new_len_wrapper (const char *text, guint length);
110 mono_string_from_byvalstr (const char *data, int len);
113 mono_string_from_byvalwstr (gunichar2 *data, int len);
116 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
119 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
122 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
125 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
127 static MonoAsyncResult *
128 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
131 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
134 mono_marshal_set_last_error_windows (int error);
136 static void init_safe_handle (void);
138 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
139 static MonoMethod *sh_dangerous_add_ref;
140 static MonoMethod *sh_dangerous_release;
146 sh_dangerous_add_ref = mono_class_get_method_from_name (
147 mono_defaults.safehandle_class, "DangerousAddRef", 1);
148 sh_dangerous_release = mono_class_get_method_from_name (
149 mono_defaults.safehandle_class, "DangerousRelease", 0);
153 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
155 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
157 mono_register_jit_icall (func, name, sig, save);
160 static MonoMethodSignature*
161 signature_dup (MonoImage *image, MonoMethodSignature *sig)
163 MonoMethodSignature *res;
166 res = mono_metadata_signature_alloc (image, sig->param_count);
167 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
168 memcpy (res, sig, sigsize);
174 mono_signature_no_pinvoke (MonoMethod *method)
176 MonoMethodSignature *sig = mono_method_signature (method);
178 sig = signature_dup (method->klass->image, sig);
179 sig->pinvoke = FALSE;
186 mono_marshal_init_tls (void)
188 mono_native_tls_alloc (&last_error_tls_id, NULL);
189 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
193 mono_marshal_init (void)
195 static gboolean module_initialized = FALSE;
197 if (!module_initialized) {
198 module_initialized = TRUE;
199 mono_mutex_init_recursive (&marshal_mutex);
200 marshal_mutex_initialized = TRUE;
202 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
203 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
204 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
205 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
206 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
207 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
208 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
209 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
210 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
211 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
212 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
213 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
214 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
215 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
216 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
217 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
218 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
219 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
220 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
221 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
222 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
223 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
224 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
225 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
226 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
227 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
228 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
229 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
230 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
231 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
232 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
233 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
234 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
235 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
236 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
237 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
238 register_icall (g_free, "g_free", "void ptr", FALSE);
239 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
240 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
241 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
242 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
243 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
244 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
245 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
246 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
247 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
249 mono_cominterop_init ();
250 mono_remoting_init ();
253 register_icall (mono_threads_prepare_blocking, "mono_threads_prepare_blocking", "int", FALSE);
254 register_icall (mono_threads_finish_blocking, "mono_threads_finish_blocking", "void int", FALSE);
255 register_icall (mono_threads_reset_blocking_start, "mono_threads_reset_blocking_start","int", FALSE);
256 register_icall (mono_threads_reset_blocking_end, "mono_threads_reset_blocking_end","void int", FALSE);
262 mono_marshal_cleanup (void)
264 mono_cominterop_cleanup ();
266 mono_native_tls_free (load_type_info_tls_id);
267 mono_native_tls_free (last_error_tls_id);
268 mono_mutex_destroy (&marshal_mutex);
269 marshal_mutex_initialized = FALSE;
273 mono_marshal_lock_internal (void)
275 mono_marshal_lock ();
279 mono_marshal_unlock_internal (void)
281 mono_marshal_unlock ();
285 mono_delegate_to_ftnptr (MonoDelegate *delegate)
287 MonoMethod *method, *wrapper;
289 uint32_t target_handle = 0;
294 if (delegate->delegate_trampoline)
295 return delegate->delegate_trampoline;
297 klass = ((MonoObject *)delegate)->vtable->klass;
298 g_assert (klass->delegate);
300 method = delegate->method;
302 if (mono_method_signature (method)->pinvoke) {
303 const char *exc_class, *exc_arg;
306 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
308 g_assert (exc_class);
309 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
314 if (delegate->target) {
315 /* Produce a location which can be embedded in JITted code */
316 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
319 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
321 delegate->delegate_trampoline = mono_compile_method (wrapper);
323 // Add the delegate to the delegate hash table
324 delegate_hash_table_add (delegate);
326 /* when the object is collected, collect the dynamic method, too */
327 mono_object_register_finalizer ((MonoObject*)delegate);
329 return delegate->delegate_trampoline;
333 * this hash table maps from a delegate trampoline object to a weak reference
334 * of the delegate. As an optimizations with a non-moving GC we store the
335 * object pointer itself, otherwise we use a GC handle.
337 static GHashTable *delegate_hash_table;
340 delegate_hash_table_new (void) {
341 return g_hash_table_new (NULL, NULL);
345 delegate_hash_table_remove (MonoDelegate *d)
347 guint32 gchandle = 0;
349 mono_marshal_lock ();
350 if (delegate_hash_table == NULL)
351 delegate_hash_table = delegate_hash_table_new ();
352 if (mono_gc_is_moving ())
353 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
354 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
355 mono_marshal_unlock ();
356 if (mono_gc_is_moving ())
357 mono_gchandle_free (gchandle);
361 delegate_hash_table_add (MonoDelegate *d)
364 guint32 old_gchandle;
366 mono_marshal_lock ();
367 if (delegate_hash_table == NULL)
368 delegate_hash_table = delegate_hash_table_new ();
369 if (mono_gc_is_moving ()) {
370 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
371 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
372 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
374 mono_gchandle_free (old_gchandle);
376 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
378 mono_marshal_unlock ();
382 * mono_marshal_use_aot_wrappers:
384 * Instructs this module to use AOT compatible wrappers.
387 mono_marshal_use_aot_wrappers (gboolean use)
389 use_aot_wrappers = use;
393 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
395 static MonoClass *UnmanagedFunctionPointerAttribute;
396 MonoCustomAttrInfo *cinfo;
397 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
399 if (!UnmanagedFunctionPointerAttribute)
400 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
402 /* The attribute is only available in Net 2.0 */
403 if (UnmanagedFunctionPointerAttribute) {
405 * The pinvoke attributes are stored in a real custom attribute so we have to
408 cinfo = mono_custom_attrs_from_class (klass);
409 if (cinfo && !mono_runtime_get_no_exec ()) {
411 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, UnmanagedFunctionPointerAttribute, &error);
413 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
415 if (!mono_error_ok (&error)) {
416 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
417 mono_error_cleanup (&error);
421 mono_custom_attrs_free (cinfo);
427 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
435 mono_marshal_lock ();
436 if (delegate_hash_table == NULL)
437 delegate_hash_table = delegate_hash_table_new ();
439 if (mono_gc_is_moving ()) {
440 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
441 mono_marshal_unlock ();
443 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
447 d = g_hash_table_lookup (delegate_hash_table, ftn);
448 mono_marshal_unlock ();
451 /* This is a native function, so construct a delegate for it */
452 MonoMethodSignature *sig;
454 MonoMarshalSpec **mspecs;
455 MonoMethod *invoke = mono_get_delegate_invoke (klass);
456 MonoMethodPInvoke piinfo;
460 if (use_aot_wrappers) {
461 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
462 this = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
464 memset (&piinfo, 0, sizeof (piinfo));
465 parse_unmanaged_function_pointer_attr (klass, &piinfo);
467 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
468 mono_method_get_marshal_info (invoke, mspecs);
469 /* Freed below so don't alloc from mempool */
470 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
473 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
476 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
478 mono_metadata_free_marshal_spec (mspecs [i]);
483 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
484 mono_delegate_ctor_with_method ((MonoObject*)d, this, mono_compile_method (wrapper), wrapper);
487 if (d->object.vtable->domain != mono_domain_get ())
488 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
494 mono_delegate_free_ftnptr (MonoDelegate *delegate)
499 delegate_hash_table_remove (delegate);
501 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
503 if (!delegate->target) {
504 /* The wrapper method is shared between delegates -> no need to free it */
513 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
516 method = mono_jit_info_get_method (ji);
517 method_data = ((MonoMethodWrapper*)method)->method_data;
519 /*the target gchandle is the first entry after size and the wrapper itself.*/
520 gchandle = GPOINTER_TO_UINT (method_data [2]);
523 mono_gchandle_free (gchandle);
525 mono_runtime_free_method (mono_object_domain (delegate), method);
530 mono_string_from_byvalstr (const char *data, int max_len)
532 MonoDomain *domain = mono_domain_get ();
538 while (len < max_len - 1 && data [len])
541 return mono_string_new_len (domain, data, len);
545 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
547 MonoDomain *domain = mono_domain_get ();
553 while (data [len]) len++;
555 return mono_string_new_utf16 (domain, data, MIN (len, max_len));
559 mono_array_to_savearray (MonoArray *array)
564 g_assert_not_reached ();
569 mono_array_to_lparray (MonoArray *array)
572 gpointer *nativeArray = NULL;
573 int nativeArraySize = 0;
583 klass = array->obj.vtable->klass;
585 switch (klass->element_class->byval_arg.type) {
587 g_assert_not_reached ();
589 case MONO_TYPE_CLASS:
590 nativeArraySize = array->max_length;
591 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
592 for(i = 0; i < nativeArraySize; ++i)
593 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
596 case MONO_TYPE_BOOLEAN:
609 case MONO_TYPE_VALUETYPE:
613 case MONO_TYPE_GENERICINST:
614 case MONO_TYPE_OBJECT:
615 case MONO_TYPE_ARRAY:
616 case MONO_TYPE_SZARRAY:
617 case MONO_TYPE_STRING:
619 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
620 g_assert_not_reached ();
623 return array->vector;
627 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
638 klass = array->obj.vtable->klass;
640 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
641 for(i = 0; i < array->max_length; ++i)
642 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
649 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
651 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
653 if (elclass == mono_defaults.byte_class) {
654 GError *error = NULL;
658 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
661 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
665 g_error_free (error);
668 g_assert_not_reached ();
672 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
674 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
678 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
680 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
682 if (elclass == mono_defaults.byte_class) {
684 GError *error = NULL;
686 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
688 MonoException *exc = mono_get_exception_argument ("string", error->message);
689 g_error_free (error);
690 mono_raise_exception (exc);
693 memcpy (native_arr, as, MIN (strlen (as), elnum));
696 g_assert_not_reached ();
701 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
703 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
706 static MonoStringBuilder *
707 mono_string_builder_new (int starting_string_length)
709 static MonoClass *string_builder_class;
710 static MonoMethod *sb_ctor;
711 static void *args [1];
712 int initial_len = starting_string_length;
718 MonoMethodDesc *desc;
721 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
722 g_assert (string_builder_class);
723 desc = mono_method_desc_new (":.ctor(int)", FALSE);
724 m = mono_method_desc_search_in_class (desc, string_builder_class);
726 mono_method_desc_free (desc);
727 mono_memory_barrier ();
731 // We make a new array in the _to_builder function, so this
732 // array will always be garbage collected.
733 args [0] = &initial_len;
735 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
739 mono_runtime_invoke (sb_ctor, sb, args, &exc);
742 g_assert (sb->chunkChars->max_length >= initial_len);
748 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
750 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
751 gunichar2 *charSrc = (gunichar2 *)text;
752 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
754 sb->chunkLength = string_len;
760 mono_string_utf16_to_builder2 (gunichar2 *text)
766 for (len = 0; text [len] != 0; ++len);
768 MonoStringBuilder *sb = mono_string_builder_new (len);
769 mono_string_utf16_to_builder (sb, text);
775 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
780 int len = strlen (text);
781 if (len > mono_string_builder_capacity (sb))
782 len = mono_string_builder_capacity (sb);
784 GError *error = NULL;
786 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
789 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
790 mono_string_utf16_to_builder_copy (sb, ut, copied);
792 g_error_free (error);
798 mono_string_utf8_to_builder2 (char *text)
803 int len = strlen (text);
804 MonoStringBuilder *sb = mono_string_builder_new (len);
805 mono_string_utf8_to_builder (sb, text);
812 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
818 for (len = 0; text [len] != 0; ++len);
820 if (len > mono_string_builder_capacity (sb))
821 len = mono_string_builder_capacity (sb);
823 mono_string_utf16_to_builder_copy (sb, text, len);
827 * mono_string_builder_to_utf8:
828 * @sb: the string builder
830 * Converts to utf8 the contents of the MonoStringBuilder.
832 * Returns: a utf8 string with the contents of the StringBuilder.
834 * The return value must be released with g_free.
837 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
839 GError *error = NULL;
845 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
847 guint str_len = mono_string_builder_string_length (sb);
849 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &error);
852 g_error_free (error);
854 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
857 guint len = mono_string_builder_capacity (sb) + 1;
858 gchar *res = mono_marshal_alloc (len * sizeof (gchar));
859 g_assert (str_len < len);
860 memcpy (res, tmp, str_len * sizeof (gchar));
871 * mono_string_builder_to_utf16:
872 * @sb: the string builder
874 * Converts to utf16 the contents of the MonoStringBuilder.
876 * Returns: a utf16 string with the contents of the StringBuilder.
878 * The return value must not be freed.
881 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
886 g_assert (sb->chunkChars);
888 guint len = mono_string_builder_capacity (sb);
893 gunichar2 *str = mono_marshal_alloc ((len + 1) * sizeof (gunichar2));
899 MonoStringBuilder* chunk = sb;
901 if (chunk->chunkLength > 0) {
902 // Check that we will not overrun our boundaries.
903 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
905 if (chunk->chunkLength <= len) {
906 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
908 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
911 len -= chunk->chunkLength;
913 chunk = chunk->chunkPrevious;
914 } while (chunk != NULL);
920 mono_string_to_lpstr (MonoString *s)
925 GError *error = NULL;
931 as = CoTaskMemAlloc (1);
936 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
938 MonoException *exc = mono_get_exception_argument ("string", error->message);
939 g_error_free (error);
940 mono_raise_exception(exc);
943 as = CoTaskMemAlloc (len + 1);
944 memcpy (as, tmp, len + 1);
949 return mono_string_to_utf8 (s);
954 mono_string_to_ansibstr (MonoString *string_obj)
956 g_error ("UnmanagedMarshal.BStr is not implemented.");
961 * mono_string_to_byvalstr:
962 * @dst: Where to store the null-terminated utf8 decoded string.
963 * @src: the MonoString to copy.
964 * @size: the maximum number of bytes to copy.
966 * Copies the MonoString pointed to by @src as a utf8 string
967 * into @dst, it copies at most @size bytes into the destination.
970 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
975 g_assert (dst != NULL);
978 memset (dst, 0, size);
982 s = mono_string_to_utf8 (src);
983 len = MIN (size, strlen (s));
986 memcpy (dst, s, len);
991 * mono_string_to_byvalwstr:
992 * @dst: Where to store the null-terminated utf16 decoded string.
993 * @src: the MonoString to copy.
994 * @size: the maximum number of bytes to copy.
996 * Copies the MonoString pointed to by @src as a utf16 string into
997 * @dst, it copies at most @size bytes into the destination (including
998 * a terminating 16-bit zero terminator).
1001 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1005 g_assert (dst != NULL);
1006 g_assert (size > 1);
1009 memset (dst, 0, size * 2);
1013 len = MIN (size, (mono_string_length (src)));
1014 memcpy (dst, mono_string_chars (src), size * 2);
1015 if (size <= mono_string_length (src))
1017 *((gunichar2 *) dst + len) = 0;
1021 mono_string_new_len_wrapper (const char *text, guint length)
1023 return mono_string_new_len (mono_domain_get (), text, length);
1029 * mono_mb_emit_exception_marshal_directive:
1031 * This function assumes ownership of MSG, which should be malloc-ed.
1034 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1039 s = mono_image_strdup (mb->method->klass->image, msg);
1044 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1047 #endif /* !DISABLE_JIT */
1050 mono_type_to_ldind (MonoType *type)
1056 switch (type->type) {
1058 return CEE_LDIND_I1;
1060 case MONO_TYPE_BOOLEAN:
1061 return CEE_LDIND_U1;
1063 return CEE_LDIND_I2;
1065 case MONO_TYPE_CHAR:
1066 return CEE_LDIND_U2;
1068 return CEE_LDIND_I4;
1070 return CEE_LDIND_U4;
1074 case MONO_TYPE_FNPTR:
1076 case MONO_TYPE_CLASS:
1077 case MONO_TYPE_STRING:
1078 case MONO_TYPE_OBJECT:
1079 case MONO_TYPE_SZARRAY:
1080 case MONO_TYPE_ARRAY:
1081 return CEE_LDIND_REF;
1084 return CEE_LDIND_I8;
1086 return CEE_LDIND_R4;
1088 return CEE_LDIND_R8;
1089 case MONO_TYPE_VALUETYPE:
1090 if (type->data.klass->enumtype) {
1091 type = mono_class_enum_basetype (type->data.klass);
1095 case MONO_TYPE_TYPEDBYREF:
1097 case MONO_TYPE_GENERICINST:
1098 type = &type->data.generic_class->container_class->byval_arg;
1101 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1107 mono_type_to_stind (MonoType *type)
1113 switch (type->type) {
1116 case MONO_TYPE_BOOLEAN:
1117 return CEE_STIND_I1;
1120 case MONO_TYPE_CHAR:
1121 return CEE_STIND_I2;
1124 return CEE_STIND_I4;
1128 case MONO_TYPE_FNPTR:
1130 case MONO_TYPE_CLASS:
1131 case MONO_TYPE_STRING:
1132 case MONO_TYPE_OBJECT:
1133 case MONO_TYPE_SZARRAY:
1134 case MONO_TYPE_ARRAY:
1135 return CEE_STIND_REF;
1138 return CEE_STIND_I8;
1140 return CEE_STIND_R4;
1142 return CEE_STIND_R8;
1143 case MONO_TYPE_VALUETYPE:
1144 if (type->data.klass->enumtype) {
1145 type = mono_class_enum_basetype (type->data.klass);
1149 case MONO_TYPE_TYPEDBYREF:
1151 case MONO_TYPE_GENERICINST:
1152 type = &type->data.generic_class->container_class->byval_arg;
1155 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1163 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1166 case MONO_MARSHAL_CONV_BOOL_I4:
1167 mono_mb_emit_ldloc (mb, 1);
1168 mono_mb_emit_ldloc (mb, 0);
1169 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1170 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1171 mono_mb_emit_byte (mb, 3);
1172 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1173 mono_mb_emit_byte (mb, CEE_BR_S);
1174 mono_mb_emit_byte (mb, 1);
1175 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1176 mono_mb_emit_byte (mb, CEE_STIND_I1);
1178 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1179 mono_mb_emit_ldloc (mb, 1);
1180 mono_mb_emit_ldloc (mb, 0);
1181 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1182 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1183 mono_mb_emit_byte (mb, 3);
1184 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1185 mono_mb_emit_byte (mb, CEE_BR_S);
1186 mono_mb_emit_byte (mb, 1);
1187 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1188 mono_mb_emit_byte (mb, CEE_STIND_I1);
1190 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1191 MonoClass *eklass = NULL;
1194 if (type->type == MONO_TYPE_SZARRAY) {
1195 eklass = type->data.klass;
1197 g_assert_not_reached ();
1200 esize = mono_class_native_size (eklass, NULL);
1202 /* create a new array */
1203 mono_mb_emit_ldloc (mb, 1);
1204 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1205 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1206 mono_mb_emit_byte (mb, CEE_STIND_I);
1208 if (eklass->blittable) {
1209 /* copy the elements */
1210 mono_mb_emit_ldloc (mb, 1);
1211 mono_mb_emit_byte (mb, CEE_LDIND_I);
1212 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1213 mono_mb_emit_byte (mb, CEE_ADD);
1214 mono_mb_emit_ldloc (mb, 0);
1215 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1216 mono_mb_emit_byte (mb, CEE_PREFIX1);
1217 mono_mb_emit_byte (mb, CEE_CPBLK);
1220 int array_var, src_var, dst_var, index_var;
1221 guint32 label2, label3;
1223 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1224 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1225 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1228 mono_mb_emit_ldloc (mb, 1);
1229 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1230 mono_mb_emit_stloc (mb, array_var);
1232 /* save the old src pointer */
1233 mono_mb_emit_ldloc (mb, 0);
1234 mono_mb_emit_stloc (mb, src_var);
1235 /* save the old dst pointer */
1236 mono_mb_emit_ldloc (mb, 1);
1237 mono_mb_emit_stloc (mb, dst_var);
1239 /* Emit marshalling loop */
1240 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1241 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1242 mono_mb_emit_stloc (mb, index_var);
1245 label2 = mono_mb_get_label (mb);
1246 mono_mb_emit_ldloc (mb, index_var);
1247 mono_mb_emit_ldloc (mb, array_var);
1248 mono_mb_emit_byte (mb, CEE_LDLEN);
1249 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1251 /* src is already set */
1254 mono_mb_emit_ldloc (mb, array_var);
1255 mono_mb_emit_ldloc (mb, index_var);
1256 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1257 mono_mb_emit_stloc (mb, 1);
1259 /* Do the conversion */
1260 emit_struct_conv (mb, eklass, TRUE);
1263 mono_mb_emit_add_to_local (mb, index_var, 1);
1265 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1267 mono_mb_patch_branch (mb, label3);
1269 /* restore the old src pointer */
1270 mono_mb_emit_ldloc (mb, src_var);
1271 mono_mb_emit_stloc (mb, 0);
1272 /* restore the old dst pointer */
1273 mono_mb_emit_ldloc (mb, dst_var);
1274 mono_mb_emit_stloc (mb, 1);
1278 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1279 MonoClass *eclass = mono_defaults.char_class;
1281 /* create a new array */
1282 mono_mb_emit_ldloc (mb, 1);
1283 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1284 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1285 mono_mb_emit_byte (mb, CEE_STIND_REF);
1287 mono_mb_emit_ldloc (mb, 1);
1288 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1289 mono_mb_emit_ldloc (mb, 0);
1290 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1291 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1294 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1295 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1296 mono_mb_emit_ldloc (mb, 1);
1297 mono_mb_emit_ldloc (mb, 0);
1298 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1299 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1301 mono_mb_emit_ldloc (mb, 1);
1302 mono_mb_emit_ldloc (mb, 0);
1303 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1305 mono_mb_emit_byte (mb, CEE_STIND_REF);
1307 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1308 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1309 mono_mb_emit_ldloc (mb, 1);
1310 mono_mb_emit_ldloc (mb, 0);
1311 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1312 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1314 mono_mb_emit_ldloc (mb, 1);
1315 mono_mb_emit_ldloc (mb, 0);
1316 mono_mb_emit_icall (mb, mono_string_from_utf16);
1318 mono_mb_emit_byte (mb, CEE_STIND_REF);
1320 case MONO_MARSHAL_CONV_STR_LPTSTR:
1321 mono_mb_emit_ldloc (mb, 1);
1322 mono_mb_emit_ldloc (mb, 0);
1323 mono_mb_emit_byte (mb, CEE_LDIND_I);
1325 mono_mb_emit_icall (mb, mono_string_from_utf16);
1327 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1329 mono_mb_emit_byte (mb, CEE_STIND_REF);
1331 case MONO_MARSHAL_CONV_STR_LPSTR:
1332 mono_mb_emit_ldloc (mb, 1);
1333 mono_mb_emit_ldloc (mb, 0);
1334 mono_mb_emit_byte (mb, CEE_LDIND_I);
1335 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1336 mono_mb_emit_byte (mb, CEE_STIND_REF);
1338 case MONO_MARSHAL_CONV_STR_LPWSTR:
1339 mono_mb_emit_ldloc (mb, 1);
1340 mono_mb_emit_ldloc (mb, 0);
1341 mono_mb_emit_byte (mb, CEE_LDIND_I);
1342 mono_mb_emit_icall (mb, mono_string_from_utf16);
1343 mono_mb_emit_byte (mb, CEE_STIND_REF);
1345 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1346 MonoClass *klass = mono_class_from_mono_type (type);
1347 int src_var, dst_var;
1349 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1350 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1352 /* *dst = new object */
1353 mono_mb_emit_ldloc (mb, 1);
1354 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1355 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1356 mono_mb_emit_byte (mb, CEE_STIND_REF);
1358 /* save the old src pointer */
1359 mono_mb_emit_ldloc (mb, 0);
1360 mono_mb_emit_stloc (mb, src_var);
1361 /* save the old dst pointer */
1362 mono_mb_emit_ldloc (mb, 1);
1363 mono_mb_emit_stloc (mb, dst_var);
1365 /* dst = pointer to newly created object data */
1366 mono_mb_emit_ldloc (mb, 1);
1367 mono_mb_emit_byte (mb, CEE_LDIND_I);
1368 mono_mb_emit_icon (mb, sizeof (MonoObject));
1369 mono_mb_emit_byte (mb, CEE_ADD);
1370 mono_mb_emit_stloc (mb, 1);
1372 emit_struct_conv (mb, klass, TRUE);
1374 /* restore the old src pointer */
1375 mono_mb_emit_ldloc (mb, src_var);
1376 mono_mb_emit_stloc (mb, 0);
1377 /* restore the old dst pointer */
1378 mono_mb_emit_ldloc (mb, dst_var);
1379 mono_mb_emit_stloc (mb, 1);
1382 case MONO_MARSHAL_CONV_DEL_FTN: {
1383 MonoClass *klass = mono_class_from_mono_type (type);
1385 mono_mb_emit_ldloc (mb, 1);
1386 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1387 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1388 mono_mb_emit_ldloc (mb, 0);
1389 mono_mb_emit_byte (mb, CEE_LDIND_I);
1390 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1391 mono_mb_emit_byte (mb, CEE_STIND_REF);
1394 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1395 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1399 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1400 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1401 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1402 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1404 #endif /* DISABLE_COM */
1406 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1408 * Passing SafeHandles as ref does not allow the unmanaged code
1409 * to change the SafeHandle value. If the value is changed,
1410 * we should issue a diagnostic exception (NotSupportedException)
1411 * that informs the user that changes to handles in unmanaged code
1414 * Since we currently have no access to the original
1415 * SafeHandle that was used during the marshalling,
1416 * for now we just ignore this, and ignore/discard any
1417 * changes that might have happened to the handle.
1422 case MONO_MARSHAL_CONV_HANDLEREF: {
1424 * Passing HandleRefs in a struct that is ref()ed does not
1425 * copy the values back to the HandleRef
1430 case MONO_MARSHAL_CONV_STR_BSTR:
1431 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1432 case MONO_MARSHAL_CONV_STR_TBSTR:
1433 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1435 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1437 mono_mb_emit_exception_marshal_directive (mb, msg);
1444 conv_to_icall (MonoMarshalConv conv)
1447 case MONO_MARSHAL_CONV_STR_LPWSTR:
1448 return mono_marshal_string_to_utf16;
1449 case MONO_MARSHAL_CONV_LPWSTR_STR:
1450 return mono_string_from_utf16;
1451 case MONO_MARSHAL_CONV_LPTSTR_STR:
1452 return mono_string_new_wrapper;
1453 case MONO_MARSHAL_CONV_LPSTR_STR:
1454 return mono_string_new_wrapper;
1455 case MONO_MARSHAL_CONV_STR_LPTSTR:
1457 return mono_marshal_string_to_utf16;
1459 return mono_string_to_lpstr;
1461 case MONO_MARSHAL_CONV_STR_LPSTR:
1462 return mono_string_to_lpstr;
1463 case MONO_MARSHAL_CONV_STR_BSTR:
1464 return mono_string_to_bstr;
1465 case MONO_MARSHAL_CONV_BSTR_STR:
1466 return mono_string_from_bstr;
1467 case MONO_MARSHAL_CONV_STR_TBSTR:
1468 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1469 return mono_string_to_ansibstr;
1470 case MONO_MARSHAL_CONV_SB_LPSTR:
1471 return mono_string_builder_to_utf8;
1472 case MONO_MARSHAL_CONV_SB_LPTSTR:
1474 return mono_string_builder_to_utf16;
1476 return mono_string_builder_to_utf8;
1478 case MONO_MARSHAL_CONV_SB_LPWSTR:
1479 return mono_string_builder_to_utf16;
1480 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1481 return mono_array_to_savearray;
1482 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1483 return mono_array_to_lparray;
1484 case MONO_MARSHAL_FREE_LPARRAY:
1485 return mono_free_lparray;
1486 case MONO_MARSHAL_CONV_DEL_FTN:
1487 return mono_delegate_to_ftnptr;
1488 case MONO_MARSHAL_CONV_FTN_DEL:
1489 return mono_ftnptr_to_delegate;
1490 case MONO_MARSHAL_CONV_LPSTR_SB:
1491 return mono_string_utf8_to_builder;
1492 case MONO_MARSHAL_CONV_LPTSTR_SB:
1494 return mono_string_utf16_to_builder;
1496 return mono_string_utf8_to_builder;
1498 case MONO_MARSHAL_CONV_LPWSTR_SB:
1499 return mono_string_utf16_to_builder;
1500 case MONO_MARSHAL_FREE_ARRAY:
1501 return mono_marshal_free_array;
1502 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1503 return mono_string_to_byvalstr;
1504 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1505 return mono_string_to_byvalwstr;
1507 g_assert_not_reached ();
1514 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1519 case MONO_MARSHAL_CONV_BOOL_I4:
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_STIND_I4);
1525 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1526 mono_mb_emit_ldloc (mb, 1);
1527 mono_mb_emit_ldloc (mb, 0);
1528 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1529 mono_mb_emit_byte (mb, CEE_NEG);
1530 mono_mb_emit_byte (mb, CEE_STIND_I2);
1532 case MONO_MARSHAL_CONV_STR_LPWSTR:
1533 case MONO_MARSHAL_CONV_STR_LPSTR:
1534 case MONO_MARSHAL_CONV_STR_LPTSTR:
1535 case MONO_MARSHAL_CONV_STR_BSTR:
1536 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1537 case MONO_MARSHAL_CONV_STR_TBSTR: {
1540 /* free space if free == true */
1541 mono_mb_emit_ldloc (mb, 2);
1542 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1543 mono_mb_emit_ldloc (mb, 1);
1544 mono_mb_emit_byte (mb, CEE_LDIND_I);
1545 mono_mb_emit_icall (mb, g_free);
1546 mono_mb_patch_short_branch (mb, pos);
1548 mono_mb_emit_ldloc (mb, 1);
1549 mono_mb_emit_ldloc (mb, 0);
1550 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1551 mono_mb_emit_icall (mb, conv_to_icall (conv));
1552 mono_mb_emit_byte (mb, CEE_STIND_I);
1555 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1556 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1557 case MONO_MARSHAL_CONV_DEL_FTN:
1558 mono_mb_emit_ldloc (mb, 1);
1559 mono_mb_emit_ldloc (mb, 0);
1560 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1561 mono_mb_emit_icall (mb, conv_to_icall (conv));
1562 mono_mb_emit_byte (mb, CEE_STIND_I);
1564 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1565 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1568 mono_mb_emit_ldloc (mb, 1); /* dst */
1569 mono_mb_emit_ldloc (mb, 0);
1570 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1571 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1572 mono_mb_emit_icall (mb, conv_to_icall (conv));
1575 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1576 MonoClass *eklass = NULL;
1579 if (type->type == MONO_TYPE_SZARRAY) {
1580 eklass = type->data.klass;
1582 g_assert_not_reached ();
1585 if (eklass->valuetype)
1586 esize = mono_class_native_size (eklass, NULL);
1588 esize = sizeof (gpointer);
1590 mono_mb_emit_ldloc (mb, 0);
1591 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1592 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1594 if (eklass->blittable) {
1595 mono_mb_emit_ldloc (mb, 1);
1596 mono_mb_emit_ldloc (mb, 0);
1597 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1598 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1599 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1600 mono_mb_emit_byte (mb, CEE_PREFIX1);
1601 mono_mb_emit_byte (mb, CEE_CPBLK);
1603 int array_var, src_var, dst_var, index_var;
1604 guint32 label2, label3;
1606 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1607 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1608 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1611 mono_mb_emit_ldloc (mb, 0);
1612 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1613 mono_mb_emit_stloc (mb, array_var);
1615 /* save the old src pointer */
1616 mono_mb_emit_ldloc (mb, 0);
1617 mono_mb_emit_stloc (mb, src_var);
1618 /* save the old dst pointer */
1619 mono_mb_emit_ldloc (mb, 1);
1620 mono_mb_emit_stloc (mb, dst_var);
1622 /* Emit marshalling loop */
1623 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1624 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1625 mono_mb_emit_stloc (mb, index_var);
1628 label2 = mono_mb_get_label (mb);
1629 mono_mb_emit_ldloc (mb, index_var);
1630 mono_mb_emit_ldloc (mb, array_var);
1631 mono_mb_emit_byte (mb, CEE_LDLEN);
1632 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1635 mono_mb_emit_ldloc (mb, array_var);
1636 mono_mb_emit_ldloc (mb, index_var);
1637 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1638 mono_mb_emit_stloc (mb, 0);
1640 /* dst is already set */
1642 /* Do the conversion */
1643 emit_struct_conv (mb, eklass, FALSE);
1646 mono_mb_emit_add_to_local (mb, index_var, 1);
1648 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1650 mono_mb_patch_branch (mb, label3);
1652 /* restore the old src pointer */
1653 mono_mb_emit_ldloc (mb, src_var);
1654 mono_mb_emit_stloc (mb, 0);
1655 /* restore the old dst pointer */
1656 mono_mb_emit_ldloc (mb, dst_var);
1657 mono_mb_emit_stloc (mb, 1);
1660 mono_mb_patch_branch (mb, pos);
1663 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1664 mono_mb_emit_ldloc (mb, 0);
1665 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1666 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1668 mono_mb_emit_ldloc (mb, 1);
1669 mono_mb_emit_ldloc (mb, 0);
1670 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1671 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1672 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1673 mono_mb_patch_short_branch (mb, pos);
1676 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1677 int src_var, dst_var;
1679 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1680 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1682 mono_mb_emit_ldloc (mb, 0);
1683 mono_mb_emit_byte (mb, CEE_LDIND_I);
1684 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1686 /* save the old src pointer */
1687 mono_mb_emit_ldloc (mb, 0);
1688 mono_mb_emit_stloc (mb, src_var);
1689 /* save the old dst pointer */
1690 mono_mb_emit_ldloc (mb, 1);
1691 mono_mb_emit_stloc (mb, dst_var);
1693 /* src = pointer to object data */
1694 mono_mb_emit_ldloc (mb, 0);
1695 mono_mb_emit_byte (mb, CEE_LDIND_I);
1696 mono_mb_emit_icon (mb, sizeof (MonoObject));
1697 mono_mb_emit_byte (mb, CEE_ADD);
1698 mono_mb_emit_stloc (mb, 0);
1700 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1702 /* restore the old src pointer */
1703 mono_mb_emit_ldloc (mb, src_var);
1704 mono_mb_emit_stloc (mb, 0);
1705 /* restore the old dst pointer */
1706 mono_mb_emit_ldloc (mb, dst_var);
1707 mono_mb_emit_stloc (mb, 1);
1709 mono_mb_patch_branch (mb, pos);
1714 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1715 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1716 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1717 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1719 #endif /* DISABLE_COM */
1721 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1724 mono_mb_emit_ldloc (mb, 0);
1725 mono_mb_emit_byte (mb, CEE_LDIND_I);
1726 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1727 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1728 mono_mb_patch_branch (mb, pos);
1730 /* Pull the handle field from SafeHandle */
1731 mono_mb_emit_ldloc (mb, 1);
1732 mono_mb_emit_ldloc (mb, 0);
1733 mono_mb_emit_byte (mb, CEE_LDIND_I);
1734 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1735 mono_mb_emit_byte (mb, CEE_LDIND_I);
1736 mono_mb_emit_byte (mb, CEE_STIND_I);
1740 case MONO_MARSHAL_CONV_HANDLEREF: {
1741 mono_mb_emit_ldloc (mb, 1);
1742 mono_mb_emit_ldloc (mb, 0);
1743 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1744 mono_mb_emit_byte (mb, CEE_ADD);
1745 mono_mb_emit_byte (mb, CEE_LDIND_I);
1746 mono_mb_emit_byte (mb, CEE_STIND_I);
1751 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1752 MonoException *exc = mono_get_exception_not_implemented (msg);
1753 g_warning ("%s", msg);
1755 mono_raise_exception (exc);
1761 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1762 MonoMarshalNative string_encoding)
1764 MonoMarshalType *info;
1768 emit_struct_conv(mb, klass->parent, to_object);
1770 info = mono_marshal_load_type_info (klass);
1772 if (info->native_size == 0)
1775 if (klass->blittable) {
1776 int msize = mono_class_value_size (klass, NULL);
1777 g_assert (msize == info->native_size);
1778 mono_mb_emit_ldloc (mb, 1);
1779 mono_mb_emit_ldloc (mb, 0);
1780 mono_mb_emit_icon (mb, msize);
1781 mono_mb_emit_byte (mb, CEE_PREFIX1);
1782 mono_mb_emit_byte (mb, CEE_CPBLK);
1784 mono_mb_emit_add_to_local (mb, 0, msize);
1785 mono_mb_emit_add_to_local (mb, 1, msize);
1789 if (klass != mono_defaults.safehandle_class) {
1790 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1791 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1792 mono_type_full_name (&klass->byval_arg));
1793 mono_mb_emit_exception_marshal_directive (mb, msg);
1798 for (i = 0; i < info->num_fields; i++) {
1799 MonoMarshalNative ntype;
1800 MonoMarshalConv conv;
1801 MonoType *ftype = info->fields [i].field->type;
1804 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1806 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1809 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1812 msize = klass->instance_size - info->fields [i].field->offset;
1813 usize = info->native_size - info->fields [i].offset;
1815 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1816 usize = info->fields [i + 1].offset - info->fields [i].offset;
1819 if (klass != mono_defaults.safehandle_class){
1821 * FIXME: Should really check for usize==0 and msize>0, but we apply
1822 * the layout to the managed structure as well.
1825 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1826 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1827 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1828 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1829 "reference field at the same offset as another field.",
1830 mono_type_full_name (&klass->byval_arg));
1835 case MONO_MARSHAL_CONV_NONE: {
1838 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1839 ftype->type == MONO_TYPE_U) {
1840 mono_mb_emit_ldloc (mb, 1);
1841 mono_mb_emit_ldloc (mb, 0);
1842 mono_mb_emit_byte (mb, CEE_LDIND_I);
1843 mono_mb_emit_byte (mb, CEE_STIND_I);
1854 case MONO_TYPE_BOOLEAN:
1857 case MONO_TYPE_CHAR:
1863 mono_mb_emit_ldloc (mb, 1);
1864 mono_mb_emit_ldloc (mb, 0);
1865 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1867 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1868 mono_mb_emit_byte (mb, CEE_STIND_I2);
1870 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1871 mono_mb_emit_byte (mb, CEE_STIND_I1);
1874 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1875 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1878 case MONO_TYPE_VALUETYPE: {
1879 int src_var, dst_var;
1881 if (ftype->data.klass->enumtype) {
1882 ftype = mono_class_enum_basetype (ftype->data.klass);
1886 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1887 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1889 /* save the old src pointer */
1890 mono_mb_emit_ldloc (mb, 0);
1891 mono_mb_emit_stloc (mb, src_var);
1892 /* save the old dst pointer */
1893 mono_mb_emit_ldloc (mb, 1);
1894 mono_mb_emit_stloc (mb, dst_var);
1896 emit_struct_conv (mb, ftype->data.klass, to_object);
1898 /* restore the old src pointer */
1899 mono_mb_emit_ldloc (mb, src_var);
1900 mono_mb_emit_stloc (mb, 0);
1901 /* restore the old dst pointer */
1902 mono_mb_emit_ldloc (mb, dst_var);
1903 mono_mb_emit_stloc (mb, 1);
1906 case MONO_TYPE_OBJECT: {
1909 static MonoMethod *variant_clear = NULL;
1910 static MonoMethod *get_object_for_native_variant = NULL;
1913 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
1914 if (!get_object_for_native_variant)
1915 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1916 mono_mb_emit_ldloc (mb, 1);
1917 mono_mb_emit_ldloc (mb, 0);
1918 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1919 mono_mb_emit_byte (mb, CEE_STIND_REF);
1921 mono_mb_emit_ldloc (mb, 0);
1922 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1925 static MonoMethod *get_native_variant_for_object = NULL;
1927 if (!get_native_variant_for_object)
1928 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1930 mono_mb_emit_ldloc (mb, 0);
1931 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1932 mono_mb_emit_ldloc (mb, 1);
1933 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1936 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
1937 mono_mb_emit_exception_marshal_directive (mb, msg);
1943 g_warning ("marshaling type %02x not implemented", ftype->type);
1944 g_assert_not_reached ();
1949 int src_var, dst_var;
1951 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1952 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1954 /* save the old src pointer */
1955 mono_mb_emit_ldloc (mb, 0);
1956 mono_mb_emit_stloc (mb, src_var);
1957 /* save the old dst pointer */
1958 mono_mb_emit_ldloc (mb, 1);
1959 mono_mb_emit_stloc (mb, dst_var);
1962 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1964 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1966 /* restore the old src pointer */
1967 mono_mb_emit_ldloc (mb, src_var);
1968 mono_mb_emit_stloc (mb, 0);
1969 /* restore the old dst pointer */
1970 mono_mb_emit_ldloc (mb, dst_var);
1971 mono_mb_emit_stloc (mb, 1);
1976 mono_mb_emit_add_to_local (mb, 0, usize);
1977 mono_mb_emit_add_to_local (mb, 1, msize);
1979 mono_mb_emit_add_to_local (mb, 0, msize);
1980 mono_mb_emit_add_to_local (mb, 1, usize);
1986 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1988 emit_struct_conv_full (mb, klass, to_object, -1);
1992 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1994 /* Call DestroyStructure */
1995 /* FIXME: Only do this if needed */
1996 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1997 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1998 mono_mb_emit_ldloc (mb, struct_var);
1999 mono_mb_emit_icall (mb, mono_struct_delete_old);
2003 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2005 int pos_noabort, pos_noex;
2007 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2008 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2009 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2010 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2012 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2013 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2015 mono_mb_emit_icall (mb, checkpoint_func);
2016 /* Throw the exception returned by the checkpoint function, if any */
2017 mono_mb_emit_byte (mb, CEE_DUP);
2018 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2019 mono_mb_emit_byte (mb, CEE_THROW);
2020 mono_mb_patch_branch (mb, pos_noex);
2021 mono_mb_emit_byte (mb, CEE_POP);
2023 mono_mb_patch_branch (mb, pos_noabort);
2027 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2029 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2032 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2036 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2038 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2042 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2044 emit_thread_interrupt_checkpoint (mb);
2048 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2050 emit_thread_force_interrupt_checkpoint (mb);
2053 #endif /* DISABLE_JIT */
2055 static MonoAsyncResult *
2056 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2058 MonoMulticastDelegate *mcast_delegate;
2062 g_assert (delegate);
2063 mcast_delegate = (MonoMulticastDelegate *) delegate;
2064 if (mcast_delegate->delegates != NULL)
2065 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2067 #ifndef DISABLE_REMOTING
2068 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2070 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2071 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2073 /* If the target is a proxy, make a direct call. Is proxy's work
2074 // to make the call asynchronous.
2076 MonoMethodMessage *msg;
2077 MonoDelegate *async_callback;
2079 MonoAsyncResult *ares;
2081 MonoArray *out_args;
2082 method = delegate->method;
2084 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2085 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2086 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2087 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2088 MONO_OBJECT_SETREF (msg, async_result, ares);
2089 msg->call_type = CallType_BeginInvoke;
2092 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2094 mono_raise_exception ((MonoException *) exc);
2100 klass = delegate->object.vtable->klass;
2102 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2104 method = mono_get_delegate_invoke (klass);
2107 return mono_thread_pool_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params);
2113 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2115 int i, params_var, tmp_var;
2117 /* allocate local (pointer) *params[] */
2118 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2119 /* allocate local (pointer) tmp */
2120 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2122 /* alloate space on stack to store an array of pointers to the arguments */
2123 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2124 mono_mb_emit_byte (mb, CEE_PREFIX1);
2125 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2126 mono_mb_emit_stloc (mb, params_var);
2129 mono_mb_emit_ldloc (mb, params_var);
2130 mono_mb_emit_stloc (mb, tmp_var);
2132 if (save_this && sig->hasthis) {
2133 mono_mb_emit_ldloc (mb, tmp_var);
2134 mono_mb_emit_ldarg_addr (mb, 0);
2135 mono_mb_emit_byte (mb, CEE_STIND_I);
2136 /* tmp = tmp + sizeof (gpointer) */
2137 if (sig->param_count)
2138 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2142 for (i = 0; i < sig->param_count; i++) {
2143 mono_mb_emit_ldloc (mb, tmp_var);
2144 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2145 mono_mb_emit_byte (mb, CEE_STIND_I);
2146 /* tmp = tmp + sizeof (gpointer) */
2147 if (i < (sig->param_count - 1))
2148 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2154 #endif /* DISABLE_JIT */
2157 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2161 GString *res = g_string_new ("");
2164 g_string_append (res, prefix);
2165 g_string_append_c (res, '_');
2168 mono_type_get_desc (res, sig->ret, FALSE);
2171 g_string_append (res, "__this__");
2173 for (i = 0; i < sig->param_count; ++i) {
2174 g_string_append_c (res, '_');
2175 mono_type_get_desc (res, sig->params [i], FALSE);
2178 g_string_free (res, FALSE);
2183 * mono_marshal_get_string_encoding:
2185 * Return the string encoding which should be used for a given parameter.
2187 static MonoMarshalNative
2188 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2190 /* First try the parameter marshal info */
2192 if (spec->native == MONO_NATIVE_LPARRAY) {
2193 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2194 return spec->data.array_data.elem_type;
2197 return spec->native;
2201 return MONO_NATIVE_LPSTR;
2203 /* Then try the method level marshal info */
2204 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2205 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2206 return MONO_NATIVE_LPSTR;
2207 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2208 return MONO_NATIVE_LPWSTR;
2209 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2211 return MONO_NATIVE_LPWSTR;
2213 return MONO_NATIVE_LPSTR;
2216 return MONO_NATIVE_LPSTR;
2220 static MonoMarshalConv
2221 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2223 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2226 case MONO_NATIVE_LPWSTR:
2227 return MONO_MARSHAL_CONV_STR_LPWSTR;
2228 case MONO_NATIVE_LPSTR:
2229 case MONO_NATIVE_VBBYREFSTR:
2230 return MONO_MARSHAL_CONV_STR_LPSTR;
2231 case MONO_NATIVE_LPTSTR:
2232 return MONO_MARSHAL_CONV_STR_LPTSTR;
2233 case MONO_NATIVE_BSTR:
2234 return MONO_MARSHAL_CONV_STR_BSTR;
2240 static MonoMarshalConv
2241 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2243 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2246 case MONO_NATIVE_LPWSTR:
2247 return MONO_MARSHAL_CONV_SB_LPWSTR;
2249 case MONO_NATIVE_LPSTR:
2250 return MONO_MARSHAL_CONV_SB_LPSTR;
2252 case MONO_NATIVE_LPTSTR:
2253 return MONO_MARSHAL_CONV_SB_LPTSTR;
2260 static MonoMarshalConv
2261 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2263 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2268 case MONO_NATIVE_LPWSTR:
2270 return MONO_MARSHAL_CONV_LPWSTR_STR;
2271 case MONO_NATIVE_LPSTR:
2272 case MONO_NATIVE_VBBYREFSTR:
2273 return MONO_MARSHAL_CONV_LPSTR_STR;
2274 case MONO_NATIVE_LPTSTR:
2275 return MONO_MARSHAL_CONV_LPTSTR_STR;
2276 case MONO_NATIVE_BSTR:
2277 return MONO_MARSHAL_CONV_BSTR_STR;
2283 static MonoMarshalConv
2284 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2286 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2291 case MONO_NATIVE_LPWSTR:
2293 * mono_string_builder_to_utf16 does not allocate a
2294 * new buffer, so no need to free it.
2297 return MONO_MARSHAL_CONV_LPWSTR_SB;
2298 case MONO_NATIVE_LPSTR:
2299 return MONO_MARSHAL_CONV_LPSTR_SB;
2301 case MONO_NATIVE_LPTSTR:
2302 return MONO_MARSHAL_CONV_LPTSTR_SB;
2310 * Return whenever a field of a native structure or an array member needs to
2314 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2316 MonoMarshalNative encoding;
2319 case MONO_TYPE_VALUETYPE:
2320 /* FIXME: Optimize this */
2322 case MONO_TYPE_OBJECT:
2323 case MONO_TYPE_CLASS:
2324 if (t->data.klass == mono_defaults.stringbuilder_class) {
2326 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2330 case MONO_TYPE_STRING:
2331 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2332 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2339 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2342 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2345 mono_marshal_lock ();
2348 g_hash_table_new (hash_func, equal_func);
2349 mono_memory_barrier ();
2352 mono_marshal_unlock ();
2358 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2360 return get_cache (var, hash_func, equal_func);
2364 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2368 mono_marshal_lock ();
2369 res = g_hash_table_lookup (cache, key);
2370 mono_marshal_unlock ();
2377 * Create a MonoMethod from MB, set INFO as wrapper info.
2380 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2381 int max_stack, WrapperInfo *info)
2385 res = mono_mb_create_method (mb, sig, max_stack);
2387 mono_marshal_set_wrapper_info (res, info);
2391 /* Create the method from the builder and place it in the cache */
2393 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2394 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2395 int max_stack, WrapperInfo *info, gboolean *out_found)
2402 mono_marshal_lock ();
2403 res = g_hash_table_lookup (cache, key);
2404 mono_marshal_unlock ();
2407 newm = mono_mb_create_method (mb, sig, max_stack);
2408 mono_marshal_lock ();
2409 res = g_hash_table_lookup (cache, key);
2412 g_hash_table_insert (cache, key, res);
2414 mono_marshal_set_wrapper_info (res, info);
2416 mono_marshal_set_wrapper_info (res, key);
2417 mono_marshal_unlock ();
2421 mono_marshal_unlock ();
2422 mono_free_method (newm);
2430 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2431 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2434 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2438 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2441 int wrapper_type = wrapper->wrapper_type;
2444 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2447 switch (wrapper_type) {
2448 case MONO_WRAPPER_REMOTING_INVOKE:
2449 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2450 case MONO_WRAPPER_XDOMAIN_INVOKE:
2451 case MONO_WRAPPER_SYNCHRONIZED:
2452 case MONO_WRAPPER_UNBOX:
2453 res = mono_marshal_get_wrapper_info (wrapper);
2456 if (wrapper->is_inflated) {
2460 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2461 * contains an uninflated method.
2463 result = mono_class_inflate_generic_method_checked (res, mono_method_get_context (wrapper), &error);
2464 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2468 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2469 info = mono_marshal_get_wrapper_info (wrapper);
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 info = mono_marshal_get_wrapper_info (wrapper);
2476 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2477 return info->d.runtime_invoke.method;
2486 * mono_marshal_get_wrapper_info:
2488 * Retrieve the pointer stored by mono_marshal_set_wrapper_info. The type of data
2489 * returned depends on the wrapper type. It is usually a method, a class, or a
2490 * WrapperInfo structure.
2493 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2495 g_assert (wrapper->wrapper_type);
2497 return mono_method_get_wrapper_data (wrapper, 1);
2501 * mono_marshal_set_wrapper_info:
2503 * Store an arbitrary pointer inside the wrapper which is retrievable by
2504 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2505 * wrapper (method->wrapper_type).
2508 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2512 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2515 datav = ((MonoMethodWrapper *)method)->method_data;
2520 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2524 info = mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2525 info->subtype = subtype;
2530 * get_wrapper_target_class:
2532 * Return the class where a wrapper method should be placed.
2535 get_wrapper_target_class (MonoImage *image)
2542 * - can't put all wrappers into an mscorlib class, because they reference
2543 * metadata (signature) so they should be put into the same image as the
2544 * method they wrap, so they are unloaded together.
2545 * - putting them into a class with a type initalizer could cause the
2546 * initializer to be executed which can be a problem if the wrappers are
2548 * - putting them into an inflated class can cause problems if the the
2549 * class is deleted because it references an image which is unloaded.
2550 * To avoid these problems, we put the wrappers into the <Module> class of
2553 if (image_is_dynamic (image)) {
2554 klass = ((MonoDynamicImage*)image)->wrappers_type;
2556 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2557 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2565 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2566 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2570 * check_generic_wrapper_cache:
2572 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2573 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2574 * generic method definition.
2577 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2580 MonoMethod *inst, *def;
2581 MonoGenericContext *ctx;
2583 g_assert (orig_method->is_inflated);
2584 ctx = mono_method_get_context (orig_method);
2587 * Look for the instance
2589 res = mono_marshal_find_in_cache (cache, key);
2594 * Look for the definition
2596 def = mono_marshal_find_in_cache (cache, def_key);
2599 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2600 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2602 mono_memory_barrier ();
2603 mono_marshal_lock ();
2604 res = g_hash_table_lookup (cache, key);
2606 g_hash_table_insert (cache, key, inst);
2609 mono_marshal_unlock ();
2616 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2619 MonoMethod *inst, *res;
2622 * We use the same cache for the generic definition and the instances.
2624 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2625 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2626 mono_memory_barrier ();
2627 mono_marshal_lock ();
2628 res = g_hash_table_lookup (cache, key);
2630 g_hash_table_insert (cache, key, inst);
2633 mono_marshal_unlock ();
2638 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2642 MonoMethod *inst, *def;
2645 * Look for the instance
2647 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2652 * Look for the definition
2654 def = mono_marshal_find_in_cache (cache, def_method->klass);
2656 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2657 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2660 mono_memory_barrier ();
2661 mono_marshal_lock ();
2662 res = g_hash_table_lookup (cache, orig_method->klass);
2664 g_hash_table_insert (cache, orig_method->klass, inst);
2667 mono_marshal_unlock ();
2674 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2677 MonoMethod *inst, *res;
2680 * We use the same cache for the generic definition and the instances.
2682 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2683 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2685 mono_memory_barrier ();
2686 mono_marshal_lock ();
2687 res = g_hash_table_lookup (cache, orig_method->klass);
2689 g_hash_table_insert (cache, orig_method->klass, inst);
2692 mono_marshal_unlock ();
2697 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2699 MonoMethodSignature *sig;
2700 MonoMethodBuilder *mb;
2705 MonoGenericContext *ctx = NULL;
2706 MonoMethod *orig_method = NULL;
2708 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2709 !strcmp (method->name, "BeginInvoke"));
2712 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2714 if (method->is_inflated) {
2715 orig_method = method;
2716 ctx = &((MonoMethodInflated*)method)->context;
2717 method = ((MonoMethodInflated*)method)->declaring;
2720 sig = mono_signature_no_pinvoke (method);
2726 cache = get_cache (&method->klass->image->delegate_begin_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2727 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2731 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2732 (GHashFunc)mono_signature_hash,
2733 (GCompareFunc)mono_metadata_signature_equal);
2734 if ((res = mono_marshal_find_in_cache (cache, sig)))
2738 g_assert (sig->hasthis);
2740 name = mono_signature_to_name (sig, "begin_invoke");
2742 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2744 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2748 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2750 mono_mb_emit_ldarg (mb, 0);
2751 mono_mb_emit_ldloc (mb, params_var);
2752 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2753 mono_mb_emit_byte (mb, CEE_RET);
2758 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2759 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2761 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2769 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2771 MonoDomain *domain = mono_domain_get ();
2772 MonoAsyncResult *ares;
2773 MonoMethod *method = NULL;
2774 MonoMethodSignature *sig;
2775 MonoMethodMessage *msg;
2776 MonoObject *res, *exc;
2777 MonoArray *out_args;
2780 g_assert (delegate);
2782 if (!delegate->method_info) {
2783 g_assert (delegate->method);
2784 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2787 if (!delegate->method_info || !delegate->method_info->method)
2788 g_assert_not_reached ();
2790 klass = delegate->object.vtable->klass;
2792 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2793 g_assert (method != NULL);
2795 sig = mono_signature_no_pinvoke (method);
2797 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2799 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2801 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."));
2805 if (ares->async_delegate != (MonoObject*)delegate) {
2806 mono_raise_exception (mono_get_exception_invalid_operation (
2807 "The IAsyncResult object provided does not match this delegate."));
2811 #ifndef DISABLE_REMOTING
2812 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2813 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2814 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2815 mono_message_init (domain, msg, delegate->method_info, NULL);
2816 msg->call_type = CallType_EndInvoke;
2817 MONO_OBJECT_SETREF (msg, async_result, ares);
2818 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2822 res = mono_thread_pool_end_invoke (ares, &out_args, &exc);
2826 if (((MonoException*)exc)->stack_trace) {
2827 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2829 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2831 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2834 mono_raise_exception ((MonoException*)exc);
2837 mono_method_return_message_restore (method, params, out_args);
2844 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2846 MonoType *t = mono_type_get_underlying_type (return_type);
2848 if (return_type->byref)
2849 return_type = &mono_defaults.int_class->byval_arg;
2852 case MONO_TYPE_VOID:
2853 g_assert_not_reached ();
2856 case MONO_TYPE_STRING:
2857 case MONO_TYPE_CLASS:
2858 case MONO_TYPE_OBJECT:
2859 case MONO_TYPE_ARRAY:
2860 case MONO_TYPE_SZARRAY:
2864 case MONO_TYPE_BOOLEAN:
2867 case MONO_TYPE_CHAR:
2877 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2878 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2880 case MONO_TYPE_GENERICINST:
2881 if (!mono_type_generic_inst_is_valuetype (t))
2884 case MONO_TYPE_VALUETYPE: {
2885 MonoClass *klass = mono_class_from_mono_type (return_type);
2886 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2887 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2891 case MONO_TYPE_MVAR: {
2892 MonoClass *klass = mono_class_from_mono_type (return_type);
2893 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2897 g_warning ("type 0x%x not handled", return_type->type);
2898 g_assert_not_reached ();
2901 mono_mb_emit_byte (mb, CEE_RET);
2904 #endif /* DISABLE_JIT */
2907 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2909 MonoMethodSignature *sig;
2910 MonoMethodBuilder *mb;
2915 MonoGenericContext *ctx = NULL;
2916 MonoMethod *orig_method = NULL;
2918 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2919 !strcmp (method->name, "EndInvoke"));
2922 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2924 if (method->is_inflated) {
2925 orig_method = method;
2926 ctx = &((MonoMethodInflated*)method)->context;
2927 method = ((MonoMethodInflated*)method)->declaring;
2930 sig = mono_signature_no_pinvoke (method);
2936 cache = get_cache (&method->klass->image->delegate_end_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2937 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2941 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2942 (GHashFunc)mono_signature_hash,
2943 (GCompareFunc)mono_metadata_signature_equal);
2944 if ((res = mono_marshal_find_in_cache (cache, sig)))
2948 g_assert (sig->hasthis);
2950 name = mono_signature_to_name (sig, "end_invoke");
2952 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2954 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2958 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2960 mono_mb_emit_ldarg (mb, 0);
2961 mono_mb_emit_ldloc (mb, params_var);
2962 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2964 if (sig->ret->type == MONO_TYPE_VOID) {
2965 mono_mb_emit_byte (mb, CEE_POP);
2966 mono_mb_emit_byte (mb, CEE_RET);
2968 mono_mb_emit_restore_result (mb, sig->ret);
2973 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2974 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2976 res = mono_mb_create_and_cache (cache, sig,
2977 mb, sig, sig->param_count + 16);
2986 MonoMethodSignature *sig;
2988 } SignaturePointerPair;
2991 signature_pointer_pair_hash (gconstpointer data)
2993 SignaturePointerPair *pair = (SignaturePointerPair*)data;
2995 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
2999 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3001 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3002 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3006 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3008 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3010 return pair->pointer == user_data;
3014 free_signature_pointer_pair (SignaturePointerPair *pair)
3020 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3022 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3024 MonoMethodBuilder *mb;
3027 gpointer cache_key = NULL;
3028 SignaturePointerPair key;
3029 SignaturePointerPair *new_key;
3030 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3031 int pos0, pos1, pos2;
3033 MonoClass *target_class = NULL;
3034 gboolean closed_over_null = FALSE;
3035 MonoGenericContext *ctx = NULL;
3036 MonoGenericContainer *container = NULL;
3037 MonoMethod *orig_method = NULL;
3039 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3043 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3044 !strcmp (method->name, "Invoke"));
3046 invoke_sig = sig = mono_signature_no_pinvoke (method);
3049 * If the delegate target is null, and the target method is not static, a virtual
3050 * call is made to that method with the first delegate argument as this. This is
3051 * a non-documented .NET feature.
3054 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3055 if (target_method->is_inflated) {
3056 MonoType *target_type;
3058 g_assert (method->signature->hasthis);
3059 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3060 mono_method_get_context (method));
3061 target_class = mono_class_from_mono_type (target_type);
3063 target_class = target_method->klass;
3066 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3069 if (static_method_with_first_arg_bound) {
3070 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3071 g_assert (!callvirt);
3072 invoke_sig = mono_method_signature (target_method);
3076 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3078 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3079 orig_method = method;
3080 ctx = &((MonoMethodInflated*)method)->context;
3081 method = ((MonoMethodInflated*)method)->declaring;
3083 container = mono_method_get_generic_container (method);
3085 container = method->klass->generic_container;
3086 g_assert (container);
3088 invoke_sig = sig = mono_signature_no_pinvoke (method);
3095 cache = get_cache (&method->klass->image->delegate_invoke_generic_cache, mono_aligned_addr_hash, NULL);
3096 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3099 cache_key = method->klass;
3100 } else if (static_method_with_first_arg_bound) {
3101 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3102 (GHashFunc)mono_signature_hash,
3103 (GCompareFunc)mono_metadata_signature_equal);
3105 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3107 res = mono_marshal_find_in_cache (cache, invoke_sig);
3110 cache_key = invoke_sig;
3111 } else if (callvirt) {
3112 GHashTable **cache_ptr;
3114 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3116 /* We need to cache the signature+method pair */
3117 mono_marshal_lock ();
3119 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3121 key.sig = invoke_sig;
3122 key.pointer = target_method;
3123 res = g_hash_table_lookup (cache, &key);
3124 mono_marshal_unlock ();
3128 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3129 (GHashFunc)mono_signature_hash,
3130 (GCompareFunc)mono_metadata_signature_equal);
3131 res = mono_marshal_find_in_cache (cache, sig);
3137 static_sig = signature_dup (method->klass->image, sig);
3138 static_sig->hasthis = 0;
3139 if (!static_method_with_first_arg_bound)
3140 invoke_sig = static_sig;
3142 if (static_method_with_first_arg_bound)
3143 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3144 else if (closed_over_null)
3145 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3147 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3149 name = mono_signature_to_name (invoke_sig, "invoke");
3151 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3153 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3157 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3159 /* allocate local 0 (object) */
3160 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3161 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3162 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3163 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3164 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3167 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3169 g_assert (sig->hasthis);
3172 * {type: sig->ret} res;
3173 * if (delegates == null) {
3174 * return this.<target> ( args .. );
3176 * int i = 0, len = this.delegates.Length;
3178 * res = this.delegates [i].Invoke ( args .. );
3179 * } while (++i < len);
3184 /* this wrapper can be used in unmanaged-managed transitions */
3185 emit_thread_interrupt_checkpoint (mb);
3187 /* delegates = this.delegates */
3188 mono_mb_emit_ldarg (mb, 0);
3189 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3190 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3191 mono_mb_emit_stloc (mb, local_delegates);
3194 /* if (delegates == null) */
3195 mono_mb_emit_ldloc (mb, local_delegates);
3196 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3198 /* return target.<target_method|method_ptr> ( args .. ); */
3200 /* target = d.target; */
3201 mono_mb_emit_ldarg (mb, 0);
3202 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3203 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3204 mono_mb_emit_stloc (mb, local_target);
3206 /*static methods with bound first arg can have null target and still be bound*/
3207 if (!static_method_with_first_arg_bound) {
3208 /* if target != null */
3209 mono_mb_emit_ldloc (mb, local_target);
3210 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3212 /* then call this->method_ptr nonstatic */
3215 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3217 mono_mb_emit_ldloc (mb, local_target);
3218 for (i = 0; i < sig->param_count; ++i)
3219 mono_mb_emit_ldarg (mb, i + 1);
3220 mono_mb_emit_ldarg (mb, 0);
3221 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3222 mono_mb_emit_byte (mb, CEE_LDIND_I );
3223 mono_mb_emit_op (mb, CEE_CALLI, sig);
3225 mono_mb_emit_byte (mb, CEE_RET);
3228 /* else [target == null] call this->method_ptr static */
3229 mono_mb_patch_branch (mb, pos0);
3233 if (!closed_over_null) {
3234 if (target_class->valuetype) {
3235 mono_mb_emit_ldarg (mb, 1);
3236 for (i = 1; i < sig->param_count; ++i)
3237 mono_mb_emit_ldarg (mb, i + 1);
3238 mono_mb_emit_op (mb, CEE_CALL, target_method);
3240 mono_mb_emit_ldarg (mb, 1);
3241 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3242 for (i = 1; i < sig->param_count; ++i)
3243 mono_mb_emit_ldarg (mb, i + 1);
3244 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3247 mono_mb_emit_byte (mb, CEE_LDNULL);
3248 for (i = 0; i < sig->param_count; ++i)
3249 mono_mb_emit_ldarg (mb, i + 1);
3250 mono_mb_emit_op (mb, CEE_CALL, target_method);
3253 if (static_method_with_first_arg_bound) {
3254 mono_mb_emit_ldloc (mb, local_target);
3255 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3256 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3258 for (i = 0; i < sig->param_count; ++i)
3259 mono_mb_emit_ldarg (mb, i + 1);
3260 mono_mb_emit_ldarg (mb, 0);
3261 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3262 mono_mb_emit_byte (mb, CEE_LDIND_I );
3263 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
3266 mono_mb_emit_byte (mb, CEE_RET);
3268 /* else [delegates != null] */
3269 mono_mb_patch_branch (mb, pos2);
3271 /* len = delegates.Length; */
3272 mono_mb_emit_ldloc (mb, local_delegates);
3273 mono_mb_emit_byte (mb, CEE_LDLEN);
3274 mono_mb_emit_byte (mb, CEE_CONV_I4);
3275 mono_mb_emit_stloc (mb, local_len);
3278 mono_mb_emit_icon (mb, 0);
3279 mono_mb_emit_stloc (mb, local_i);
3281 pos1 = mono_mb_get_label (mb);
3283 /* d = delegates [i]; */
3284 mono_mb_emit_ldloc (mb, local_delegates);
3285 mono_mb_emit_ldloc (mb, local_i);
3286 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3287 mono_mb_emit_stloc (mb, local_d);
3289 /* res = d.Invoke ( args .. ); */
3290 mono_mb_emit_ldloc (mb, local_d);
3291 for (i = 0; i < sig->param_count; i++)
3292 mono_mb_emit_ldarg (mb, i + 1);
3294 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3297 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3298 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3301 mono_mb_emit_stloc (mb, local_res);
3304 mono_mb_emit_add_to_local (mb, local_i, 1);
3307 mono_mb_emit_ldloc (mb, local_i);
3308 mono_mb_emit_ldloc (mb, local_len);
3309 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3313 mono_mb_emit_ldloc (mb, local_res);
3314 mono_mb_emit_byte (mb, CEE_RET);
3316 mb->skip_visibility = 1;
3317 #endif /* DISABLE_JIT */
3322 def = mono_mb_create_and_cache (cache, cache_key, mb, sig, sig->param_count + 16);
3323 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3324 } else if (callvirt) {
3325 new_key = g_new0 (SignaturePointerPair, 1);
3328 info = mono_wrapper_info_create (mb, subtype);
3330 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3334 info = mono_wrapper_info_create (mb, subtype);
3336 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3340 /* mono_method_print_code (res); */
3346 * the returned method invokes all methods in a multicast delegate.
3349 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3351 gboolean callvirt = FALSE;
3352 gboolean static_method_with_first_arg_bound = FALSE;
3353 MonoMethod *target_method = NULL;
3354 MonoMethodSignature *sig;
3356 sig = mono_signature_no_pinvoke (method);
3358 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3360 target_method = del->method;
3363 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3364 static_method_with_first_arg_bound = TRUE;
3365 target_method = del->method;
3368 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3372 * signature_dup_add_this:
3374 * Make a copy of @sig, adding an explicit this argument.
3376 static MonoMethodSignature*
3377 signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
3379 MonoMethodSignature *res;
3382 res = mono_metadata_signature_alloc (image, sig->param_count + 1);
3383 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
3384 res->param_count = sig->param_count + 1;
3385 res->hasthis = FALSE;
3386 for (i = sig->param_count - 1; i >= 0; i --)
3387 res->params [i + 1] = sig->params [i];
3388 res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
3394 MonoMethodSignature *ctor_sig;
3395 MonoMethodSignature *sig;
3398 /* protected by the marshal lock, contains CtorSigPair pointers */
3399 static GSList *strsig_list = NULL;
3401 static MonoMethodSignature *
3402 lookup_string_ctor_signature (MonoMethodSignature *sig)
3404 MonoMethodSignature *callsig;
3408 mono_marshal_lock ();
3410 for (item = strsig_list; item; item = item->next) {
3412 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3413 * because it is lock-free.
3415 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3420 mono_marshal_unlock ();
3424 static MonoMethodSignature *
3425 add_string_ctor_signature (MonoMethod *method)
3427 MonoMethodSignature *callsig;
3430 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3431 callsig->ret = &mono_defaults.string_class->byval_arg;
3432 cs = g_new (CtorSigPair, 1);
3434 cs->ctor_sig = mono_method_signature (method);
3436 mono_marshal_lock ();
3437 strsig_list = g_slist_prepend (strsig_list, cs);
3438 mono_marshal_unlock ();
3443 * mono_marshal_get_string_ctor_signature:
3445 * Return the modified signature used by string ctors (they return the newly created
3448 MonoMethodSignature*
3449 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3451 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3453 sig = add_string_ctor_signature (method);
3459 get_runtime_invoke_type (MonoType *t, gboolean ret)
3462 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3464 /* Can't share this with 'I' as that needs another indirection */
3465 return &mono_defaults.int_class->this_arg;
3468 if (MONO_TYPE_IS_REFERENCE (t))
3469 return &mono_defaults.object_class->byval_arg;
3472 /* The result needs to be boxed */
3477 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3480 return &mono_defaults.sbyte_class->byval_arg;
3482 return &mono_defaults.int16_class->byval_arg;
3484 return &mono_defaults.int32_class->byval_arg;
3487 return &mono_defaults.int64_class->byval_arg;
3488 case MONO_TYPE_BOOLEAN:
3489 return &mono_defaults.byte_class->byval_arg;
3490 case MONO_TYPE_CHAR:
3491 return &mono_defaults.uint16_class->byval_arg;
3494 return &mono_defaults.int_class->byval_arg;
3495 case MONO_TYPE_VALUETYPE:
3496 if (t->data.klass->enumtype) {
3497 t = mono_class_enum_basetype (t->data.klass);
3507 * mono_marshal_get_runtime_invoke_sig:
3509 * Return a common signature used for sharing runtime invoke wrappers.
3511 static MonoMethodSignature*
3512 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3514 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3517 res->generic_param_count = 0;
3518 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3519 for (i = 0; i < res->param_count; ++i)
3520 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3526 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3528 /* Can't share wrappers which return a vtype since it needs to be boxed */
3529 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))
3532 return mono_metadata_signature_equal (sig1, sig2);
3540 * Emit the call to the wrapper method from a runtime invoke wrapper.
3543 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3544 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3546 gboolean virtual, gboolean need_direct_wrapper)
3548 static MonoString *string_dummy = NULL;
3550 int *tmp_nullable_locals;
3551 gboolean void_ret = FALSE;
3553 /* to make it work with our special string constructors */
3554 if (!string_dummy) {
3555 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
3556 string_dummy = mono_string_new_wrapper ("dummy");
3560 g_assert (sig->hasthis);
3561 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3565 if (method->string_ctor) {
3566 if (mono_gc_is_moving ()) {
3567 mono_mb_emit_ptr (mb, &string_dummy);
3568 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3570 mono_mb_emit_ptr (mb, string_dummy);
3573 mono_mb_emit_ldarg (mb, 0);
3577 tmp_nullable_locals = g_new0 (int, sig->param_count);
3579 for (i = 0; i < sig->param_count; i++) {
3580 MonoType *t = sig->params [i];
3583 mono_mb_emit_ldarg (mb, 1);
3585 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3586 mono_mb_emit_byte (mb, CEE_ADD);
3590 mono_mb_emit_byte (mb, CEE_LDIND_I);
3591 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3592 * So to make this work we unbox it to a local variablee and push a reference to that.
3594 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3595 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3597 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3598 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3599 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3604 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3605 type = sig->params [i]->type;
3609 case MONO_TYPE_BOOLEAN:
3613 case MONO_TYPE_CHAR:
3622 mono_mb_emit_byte (mb, CEE_LDIND_I);
3623 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3625 case MONO_TYPE_STRING:
3626 case MONO_TYPE_CLASS:
3627 case MONO_TYPE_ARRAY:
3629 case MONO_TYPE_SZARRAY:
3630 case MONO_TYPE_OBJECT:
3631 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3633 case MONO_TYPE_GENERICINST:
3634 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3635 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3640 case MONO_TYPE_VALUETYPE:
3641 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3642 type = mono_class_enum_basetype (t->data.klass)->type;
3645 mono_mb_emit_byte (mb, CEE_LDIND_I);
3646 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3647 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3648 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3649 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3651 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3655 g_assert_not_reached ();
3660 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3661 } else if (need_direct_wrapper) {
3662 mono_mb_emit_op (mb, CEE_CALL, method);
3664 mono_mb_emit_ldarg (mb, 3);
3665 mono_mb_emit_calli (mb, callsig);
3668 if (sig->ret->byref) {
3670 g_assert_not_reached ();
3673 switch (sig->ret->type) {
3674 case MONO_TYPE_VOID:
3675 if (!method->string_ctor)
3678 case MONO_TYPE_BOOLEAN:
3679 case MONO_TYPE_CHAR:
3692 case MONO_TYPE_VALUETYPE:
3693 case MONO_TYPE_TYPEDBYREF:
3694 case MONO_TYPE_GENERICINST:
3695 /* box value types */
3696 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3698 case MONO_TYPE_STRING:
3699 case MONO_TYPE_CLASS:
3700 case MONO_TYPE_ARRAY:
3701 case MONO_TYPE_SZARRAY:
3702 case MONO_TYPE_OBJECT:
3706 /* The result is an IntPtr */
3707 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3710 g_assert_not_reached ();
3714 mono_mb_emit_stloc (mb, loc_res);
3716 /* Convert back nullable-byref arguments */
3717 for (i = 0; i < sig->param_count; i++) {
3718 MonoType *t = sig->params [i];
3721 * Box the result and put it back into the array, the caller will have
3722 * to obtain it from there.
3724 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3725 mono_mb_emit_ldarg (mb, 1);
3726 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3727 mono_mb_emit_byte (mb, CEE_ADD);
3729 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3730 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3732 mono_mb_emit_byte (mb, CEE_STIND_REF);
3736 g_free (tmp_nullable_locals);
3740 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
3741 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3742 gboolean virtual, gboolean need_direct_wrapper)
3745 MonoExceptionClause *clause;
3746 int loc_res, loc_exc;
3748 /* The wrapper looks like this:
3754 * } catch (Exception e) {
3762 /* allocate local 0 (object) tmp */
3763 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3764 /* allocate local 1 (object) exc */
3765 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3767 /* *exc is assumed to be initialized to NULL by the caller */
3769 mono_mb_emit_byte (mb, CEE_LDARG_2);
3770 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3775 labels [1] = mono_mb_get_label (mb);
3776 emit_thread_force_interrupt_checkpoint (mb);
3777 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3779 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3781 /* Add a try clause around the call */
3782 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
3783 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3784 clause->data.catch_class = mono_defaults.exception_class;
3785 clause->try_offset = labels [1];
3786 clause->try_len = mono_mb_get_label (mb) - labels [1];
3788 clause->handler_offset = mono_mb_get_label (mb);
3791 mono_mb_emit_stloc (mb, loc_exc);
3792 mono_mb_emit_byte (mb, CEE_LDARG_2);
3793 mono_mb_emit_ldloc (mb, loc_exc);
3794 mono_mb_emit_byte (mb, CEE_STIND_REF);
3796 mono_mb_emit_branch (mb, CEE_LEAVE);
3798 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3800 mono_mb_set_clauses (mb, 1, clause);
3802 mono_mb_patch_branch (mb, labels [2]);
3803 mono_mb_emit_ldloc (mb, loc_res);
3804 mono_mb_emit_byte (mb, CEE_RET);
3809 mono_mb_patch_branch (mb, labels [0]);
3810 emit_thread_force_interrupt_checkpoint (mb);
3811 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3813 mono_mb_emit_ldloc (mb, 0);
3814 mono_mb_emit_byte (mb, CEE_RET);
3819 * generates IL code for the runtime invoke function
3820 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
3822 * we also catch exceptions if exc != null
3823 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3824 * it means that the compiled code for METHOD does not have to be looked up
3825 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3826 * its METHOD argument.
3829 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
3831 MonoMethodSignature *sig, *csig, *callsig;
3832 MonoMethodBuilder *mb;
3833 GHashTable *cache = NULL;
3834 MonoClass *target_klass;
3835 MonoMethod *res = NULL;
3836 static MonoMethodSignature *cctor_signature = NULL;
3837 static MonoMethodSignature *finalize_signature = NULL;
3839 const char *param_names [16];
3840 gboolean need_direct_wrapper = FALSE;
3845 if (!cctor_signature) {
3846 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3847 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3849 if (!finalize_signature) {
3850 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3851 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3852 finalize_signature->hasthis = 1;
3856 need_direct_wrapper = TRUE;
3859 * Use a separate cache indexed by methods to speed things up and to avoid the
3860 * boundless mempool growth caused by the signature_dup stuff below.
3863 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3865 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3866 res = mono_marshal_find_in_cache (cache, method);
3870 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3871 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3873 * Array Get/Set/Address methods. The JIT implements them using inline code
3874 * so we need to create an invoke wrapper which calls the method directly.
3876 need_direct_wrapper = TRUE;
3879 if (method->string_ctor) {
3880 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3882 callsig = add_string_ctor_signature (method);
3883 /* Can't share this as we push a string as this */
3884 need_direct_wrapper = TRUE;
3886 if (method_is_dynamic (method))
3887 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3889 callsig = mono_method_signature (method);
3892 target_klass = get_wrapper_target_class (method->klass->image);
3894 /* Try to share wrappers for non-corlib methods with simple signatures */
3895 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3896 callsig = cctor_signature;
3897 target_klass = mono_defaults.object_class;
3898 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3899 callsig = finalize_signature;
3900 target_klass = mono_defaults.object_class;
3903 if (need_direct_wrapper) {
3904 /* Already searched at the start */
3906 MonoMethodSignature *tmp_sig;
3908 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3910 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3911 /* These have a different csig */
3912 cache = get_cache (&target_klass->image->runtime_invoke_vtype_cache,
3913 (GHashFunc)mono_signature_hash,
3914 (GCompareFunc)runtime_invoke_signature_equal);
3916 cache = get_cache (&target_klass->image->runtime_invoke_cache,
3917 (GHashFunc)mono_signature_hash,
3918 (GCompareFunc)runtime_invoke_signature_equal);
3920 /* from mono_marshal_find_in_cache */
3921 mono_marshal_lock ();
3922 res = g_hash_table_lookup (cache, callsig);
3923 mono_marshal_unlock ();
3930 /* Make a copy of the signature from the image mempool */
3932 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3936 sig = mono_method_signature (method);
3938 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3940 csig->ret = &mono_defaults.object_class->byval_arg;
3941 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3942 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3944 csig->params [0] = &mono_defaults.object_class->byval_arg;
3945 csig->params [1] = &mono_defaults.int_class->byval_arg;
3946 csig->params [2] = &mono_defaults.int_class->byval_arg;
3947 csig->params [3] = &mono_defaults.int_class->byval_arg;
3950 /* This is called from runtime code so it has to be cdecl */
3951 csig->call_convention = MONO_CALL_C;
3954 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
3955 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3959 param_names [0] = "this";
3960 param_names [1] = "params";
3961 param_names [2] = "exc";
3962 param_names [3] = "method";
3963 mono_mb_set_param_names (mb, param_names);
3965 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
3968 if (need_direct_wrapper) {
3970 mb->skip_visibility = 1;
3972 info = mono_wrapper_info_create (mb, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
3973 info->d.runtime_invoke.method = method;
3974 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
3976 /* taken from mono_mb_create_and_cache */
3977 mono_marshal_lock ();
3978 res = g_hash_table_lookup (cache, callsig);
3979 mono_marshal_unlock ();
3981 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
3982 info->d.runtime_invoke.sig = callsig;
3984 /* Somebody may have created it before us */
3987 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
3989 mono_marshal_lock ();
3990 res = g_hash_table_lookup (cache, callsig);
3993 g_hash_table_insert (cache, callsig, res);
3994 /* Can't insert it into wrapper_hash since the key is a signature */
3995 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
3997 mono_free_method (newm);
3999 mono_marshal_unlock ();
4002 /* end mono_mb_create_and_cache */
4011 * mono_marshal_get_runtime_invoke_dynamic:
4013 * Return a method which can be used to invoke managed methods from native code
4015 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4016 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4017 * ARGS should point to an architecture specific structure containing
4018 * the arguments and space for the return value.
4019 * The other arguments are the same as for runtime_invoke (), except that
4020 * ARGS should contain the this argument too.
4021 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4022 * is only one copy of it, which is useful in full-aot.
4023 * The wrapper info for the wrapper is a WrapperInfo structure.
4026 mono_marshal_get_runtime_invoke_dynamic (void)
4028 static MonoMethod *method;
4029 MonoMethodSignature *csig;
4030 MonoExceptionClause *clause;
4031 MonoMethodBuilder *mb;
4039 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4041 csig->ret = &mono_defaults.void_class->byval_arg;
4042 csig->params [0] = &mono_defaults.int_class->byval_arg;
4043 csig->params [1] = &mono_defaults.int_class->byval_arg;
4044 csig->params [2] = &mono_defaults.int_class->byval_arg;
4045 csig->params [3] = &mono_defaults.int_class->byval_arg;
4047 name = g_strdup ("runtime_invoke_dynamic");
4048 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4052 /* allocate local 0 (object) tmp */
4053 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4054 /* allocate local 1 (object) exc */
4055 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4057 /* cond set *exc to null */
4058 mono_mb_emit_byte (mb, CEE_LDARG_1);
4059 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4060 mono_mb_emit_byte (mb, 3);
4061 mono_mb_emit_byte (mb, CEE_LDARG_1);
4062 mono_mb_emit_byte (mb, CEE_LDNULL);
4063 mono_mb_emit_byte (mb, CEE_STIND_REF);
4065 emit_thread_force_interrupt_checkpoint (mb);
4067 mono_mb_emit_byte (mb, CEE_LDARG_0);
4068 mono_mb_emit_byte (mb, CEE_LDARG_2);
4069 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4070 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4072 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4074 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4075 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4076 clause->try_len = mono_mb_get_label (mb);
4079 clause->data.filter_offset = mono_mb_get_label (mb);
4081 mono_mb_emit_byte (mb, CEE_POP);
4082 mono_mb_emit_byte (mb, CEE_LDARG_1);
4083 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4084 mono_mb_emit_byte (mb, CEE_PREFIX1);
4085 mono_mb_emit_byte (mb, CEE_CGT_UN);
4086 mono_mb_emit_byte (mb, CEE_PREFIX1);
4087 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4089 clause->handler_offset = mono_mb_get_label (mb);
4092 /* store exception */
4093 mono_mb_emit_stloc (mb, 1);
4095 mono_mb_emit_byte (mb, CEE_LDARG_1);
4096 mono_mb_emit_ldloc (mb, 1);
4097 mono_mb_emit_byte (mb, CEE_STIND_REF);
4099 mono_mb_emit_byte (mb, CEE_LDNULL);
4100 mono_mb_emit_stloc (mb, 0);
4102 /* Check for the abort exception */
4103 mono_mb_emit_ldloc (mb, 1);
4104 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4105 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4107 /* Delay the abort exception */
4108 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4110 mono_mb_patch_short_branch (mb, posna);
4111 mono_mb_emit_branch (mb, CEE_LEAVE);
4113 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4115 mono_mb_set_clauses (mb, 1, clause);
4118 mono_mb_patch_branch (mb, pos);
4119 //mono_mb_emit_ldloc (mb, 0);
4120 mono_mb_emit_byte (mb, CEE_RET);
4121 #endif /* DISABLE_JIT */
4123 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4125 mono_marshal_lock ();
4126 /* double-checked locking */
4128 method = mono_mb_create (mb, csig, 16, info);
4130 mono_marshal_unlock ();
4139 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4141 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4142 klass->name_space, klass->name);
4144 mono_mb_emit_exception_marshal_directive (mb, msg);
4149 * generates IL code for the icall wrapper (the generated method
4150 * calls the unmanaged code in func)
4151 * The wrapper info for the wrapper is a WrapperInfo structure.
4154 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4156 MonoMethodSignature *csig, *csig2;
4157 MonoMethodBuilder *mb;
4162 g_assert (sig->pinvoke);
4164 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4166 mb->method->save_lmf = 1;
4168 /* Add an explicit this argument */
4170 csig2 = signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4172 csig2 = signature_dup (mono_defaults.corlib, sig);
4176 mono_mb_emit_byte (mb, CEE_LDARG_0);
4178 for (i = 0; i < sig->param_count; i++)
4179 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4181 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4182 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4183 mono_mb_emit_calli (mb, csig2);
4184 if (check_exceptions)
4185 emit_thread_interrupt_checkpoint (mb);
4186 mono_mb_emit_byte (mb, CEE_RET);
4189 csig = signature_dup (mono_defaults.corlib, sig);
4191 if (csig->call_convention == MONO_CALL_VARARG)
4192 csig->call_convention = 0;
4194 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4195 info->d.icall.func = (gpointer)func;
4196 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4203 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4204 MonoMarshalSpec *spec,
4205 int conv_arg, MonoType **conv_arg_type,
4206 MarshalAction action)
4209 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4210 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4215 static MonoClass *ICustomMarshaler = NULL;
4216 static MonoMethod *cleanup_native, *cleanup_managed;
4217 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4218 MonoMethod *get_instance = NULL;
4219 MonoMethodBuilder *mb = m->mb;
4220 char *exception_msg = NULL;
4224 if (!ICustomMarshaler) {
4225 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4227 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4228 goto handle_exception;
4231 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4232 g_assert (cleanup_native);
4233 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4234 g_assert (cleanup_managed);
4235 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4236 g_assert (marshal_managed_to_native);
4237 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4238 g_assert (marshal_native_to_managed);
4240 mono_memory_barrier ();
4241 ICustomMarshaler = klass;
4244 if (spec->data.custom_data.image)
4245 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4247 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4248 g_assert (mtype != NULL);
4249 mklass = mono_class_from_mono_type (mtype);
4250 g_assert (mklass != NULL);
4252 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4253 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4255 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4257 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4258 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4259 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4260 (get_sig->params [0]->type != MONO_TYPE_STRING))
4261 get_instance = NULL;
4265 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);
4268 /* Throw exception and emit compensation code if neccesary */
4269 if (exception_msg) {
4271 case MARSHAL_ACTION_CONV_IN:
4272 case MARSHAL_ACTION_CONV_RESULT:
4273 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4274 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4275 mono_mb_emit_byte (mb, CEE_POP);
4277 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4278 g_free (exception_msg);
4281 case MARSHAL_ACTION_PUSH:
4282 mono_mb_emit_byte (mb, CEE_LDNULL);
4290 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4291 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4294 case MARSHAL_ACTION_CONV_IN:
4296 case MONO_TYPE_CLASS:
4297 case MONO_TYPE_OBJECT:
4298 case MONO_TYPE_STRING:
4299 case MONO_TYPE_ARRAY:
4300 case MONO_TYPE_SZARRAY:
4301 case MONO_TYPE_VALUETYPE:
4305 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4306 g_assert_not_reached ();
4310 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4312 mono_mb_emit_byte (mb, CEE_LDNULL);
4313 mono_mb_emit_stloc (mb, conv_arg);
4315 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4318 /* Minic MS.NET behavior */
4319 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4322 /* Check for null */
4323 mono_mb_emit_ldarg (mb, argnum);
4325 mono_mb_emit_byte (mb, CEE_LDIND_I);
4326 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4328 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4330 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4332 mono_mb_emit_ldarg (mb, argnum);
4334 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4336 if (t->type == MONO_TYPE_VALUETYPE) {
4338 * Since we can't determine the type of the argument, we
4339 * will assume the unmanaged function takes a pointer.
4341 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4343 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4346 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4347 mono_mb_emit_stloc (mb, conv_arg);
4349 mono_mb_patch_branch (mb, pos2);
4352 case MARSHAL_ACTION_CONV_OUT:
4353 /* Check for null */
4354 mono_mb_emit_ldloc (mb, conv_arg);
4355 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4358 mono_mb_emit_ldarg (mb, argnum);
4360 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4362 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4364 mono_mb_emit_ldloc (mb, conv_arg);
4365 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4366 mono_mb_emit_byte (mb, CEE_STIND_REF);
4367 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4368 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4370 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4372 mono_mb_emit_ldloc (mb, conv_arg);
4373 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4375 /* We have nowhere to store the result */
4376 mono_mb_emit_byte (mb, CEE_POP);
4379 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4381 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4383 mono_mb_emit_ldloc (mb, conv_arg);
4385 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4387 mono_mb_patch_branch (mb, pos2);
4390 case MARSHAL_ACTION_PUSH:
4392 mono_mb_emit_ldloc_addr (mb, conv_arg);
4394 mono_mb_emit_ldloc (mb, conv_arg);
4397 case MARSHAL_ACTION_CONV_RESULT:
4398 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4400 mono_mb_emit_stloc (mb, 3);
4402 mono_mb_emit_ldloc (mb, 3);
4403 mono_mb_emit_stloc (mb, loc1);
4405 /* Check for null */
4406 mono_mb_emit_ldloc (mb, 3);
4407 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4409 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4411 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4412 mono_mb_emit_byte (mb, CEE_DUP);
4414 mono_mb_emit_ldloc (mb, 3);
4415 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4416 mono_mb_emit_stloc (mb, 3);
4418 mono_mb_emit_ldloc (mb, loc1);
4419 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4421 mono_mb_patch_branch (mb, pos2);
4424 case MARSHAL_ACTION_MANAGED_CONV_IN:
4425 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4427 mono_mb_emit_byte (mb, CEE_LDNULL);
4428 mono_mb_emit_stloc (mb, conv_arg);
4430 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4433 /* Check for null */
4434 mono_mb_emit_ldarg (mb, argnum);
4436 mono_mb_emit_byte (mb, CEE_LDIND_I);
4437 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4439 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4440 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4442 mono_mb_emit_ldarg (mb, argnum);
4444 mono_mb_emit_byte (mb, CEE_LDIND_I);
4446 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4447 mono_mb_emit_stloc (mb, conv_arg);
4449 mono_mb_patch_branch (mb, pos2);
4452 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4453 g_assert (!t->byref);
4455 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4457 mono_mb_emit_stloc (mb, 3);
4459 mono_mb_emit_ldloc (mb, 3);
4460 mono_mb_emit_stloc (mb, loc1);
4462 /* Check for null */
4463 mono_mb_emit_ldloc (mb, 3);
4464 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4466 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4467 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4468 mono_mb_emit_byte (mb, CEE_DUP);
4470 mono_mb_emit_ldloc (mb, 3);
4471 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4472 mono_mb_emit_stloc (mb, 3);
4474 mono_mb_emit_ldloc (mb, loc1);
4475 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4477 mono_mb_patch_branch (mb, pos2);
4480 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4482 /* Check for null */
4483 mono_mb_emit_ldloc (mb, conv_arg);
4484 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4487 mono_mb_emit_ldarg (mb, argnum);
4489 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4491 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4493 mono_mb_emit_ldloc (mb, conv_arg);
4494 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4495 mono_mb_emit_byte (mb, CEE_STIND_I);
4498 /* Call CleanUpManagedData */
4499 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4501 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4503 mono_mb_emit_ldloc (mb, conv_arg);
4504 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4506 mono_mb_patch_branch (mb, pos2);
4510 g_assert_not_reached ();
4518 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4519 MonoMarshalSpec *spec,
4520 int conv_arg, MonoType **conv_arg_type,
4521 MarshalAction action)
4524 MonoMethodBuilder *mb = m->mb;
4527 case MARSHAL_ACTION_CONV_IN: {
4528 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4530 g_assert (t->type == MONO_TYPE_OBJECT);
4531 g_assert (!t->byref);
4533 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4534 mono_mb_emit_ldarg (mb, argnum);
4535 mono_mb_emit_icon (mb, encoding);
4536 mono_mb_emit_icon (mb, t->attrs);
4537 mono_mb_emit_icall (mb, mono_marshal_asany);
4538 mono_mb_emit_stloc (mb, conv_arg);
4542 case MARSHAL_ACTION_PUSH:
4543 mono_mb_emit_ldloc (mb, conv_arg);
4546 case MARSHAL_ACTION_CONV_OUT: {
4547 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4549 mono_mb_emit_ldarg (mb, argnum);
4550 mono_mb_emit_ldloc (mb, conv_arg);
4551 mono_mb_emit_icon (mb, encoding);
4552 mono_mb_emit_icon (mb, t->attrs);
4553 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4558 g_assert_not_reached ();
4565 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4566 MonoMarshalSpec *spec,
4567 int conv_arg, MonoType **conv_arg_type,
4568 MarshalAction action)
4571 MonoMethodBuilder *mb = m->mb;
4572 MonoClass *klass, *date_time_class;
4575 klass = mono_class_from_mono_type (t);
4577 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
4580 case MARSHAL_ACTION_CONV_IN:
4581 if (klass == date_time_class) {
4582 /* Convert it to an OLE DATE type */
4583 static MonoMethod *to_oadate;
4586 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4587 g_assert (to_oadate);
4589 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4592 mono_mb_emit_ldarg (mb, argnum);
4593 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4596 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4598 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4600 mono_mb_emit_ldarg_addr (mb, argnum);
4601 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4602 mono_mb_emit_stloc (mb, conv_arg);
4606 mono_mb_patch_branch (mb, pos);
4610 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4611 klass->blittable || klass->enumtype)
4614 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4616 /* store the address of the source into local variable 0 */
4618 mono_mb_emit_ldarg (mb, argnum);
4620 mono_mb_emit_ldarg_addr (mb, argnum);
4622 mono_mb_emit_stloc (mb, 0);
4624 /* allocate space for the native struct and
4625 * store the address into local variable 1 (dest) */
4626 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4627 mono_mb_emit_byte (mb, CEE_PREFIX1);
4628 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4629 mono_mb_emit_stloc (mb, conv_arg);
4632 mono_mb_emit_ldloc (mb, 0);
4633 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4636 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4638 mono_mb_emit_ldloc (mb, conv_arg);
4639 mono_mb_emit_stloc (mb, 1);
4641 /* emit valuetype conversion code */
4642 emit_struct_conv (mb, klass, FALSE);
4646 mono_mb_patch_branch (mb, pos);
4649 case MARSHAL_ACTION_PUSH:
4650 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4652 g_assert (!t->byref);
4654 /* Have to change the signature since the vtype is passed byref */
4655 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4657 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4658 klass->blittable || klass->enumtype)
4659 mono_mb_emit_ldarg_addr (mb, argnum);
4661 mono_mb_emit_ldloc (mb, conv_arg);
4665 if (klass == date_time_class) {
4667 mono_mb_emit_ldloc_addr (mb, conv_arg);
4669 mono_mb_emit_ldloc (mb, conv_arg);
4673 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4674 klass->blittable || klass->enumtype) {
4675 mono_mb_emit_ldarg (mb, argnum);
4678 mono_mb_emit_ldloc (mb, conv_arg);
4680 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4681 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4685 case MARSHAL_ACTION_CONV_OUT:
4686 if (klass == date_time_class) {
4687 /* Convert from an OLE DATE type */
4688 static MonoMethod *from_oadate;
4693 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4695 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4696 g_assert (from_oadate);
4698 mono_mb_emit_ldarg (mb, argnum);
4699 mono_mb_emit_ldloc (mb, conv_arg);
4700 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4701 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4706 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4707 klass->blittable || klass->enumtype)
4711 /* dst = argument */
4712 mono_mb_emit_ldarg (mb, argnum);
4713 mono_mb_emit_stloc (mb, 1);
4715 mono_mb_emit_ldloc (mb, 1);
4716 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4718 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4719 /* src = tmp_locals [i] */
4720 mono_mb_emit_ldloc (mb, conv_arg);
4721 mono_mb_emit_stloc (mb, 0);
4723 /* emit valuetype conversion code */
4724 emit_struct_conv (mb, klass, TRUE);
4728 emit_struct_free (mb, klass, conv_arg);
4731 mono_mb_patch_branch (mb, pos);
4734 case MARSHAL_ACTION_CONV_RESULT:
4735 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4737 mono_mb_emit_stloc (mb, 3);
4741 /* load pointer to returned value type */
4742 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4743 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4744 /* store the address of the source into local variable 0 */
4745 mono_mb_emit_stloc (mb, 0);
4747 mono_mb_emit_ldloc_addr (mb, 3);
4748 mono_mb_emit_stloc (mb, 1);
4750 /* emit valuetype conversion code */
4751 emit_struct_conv (mb, klass, TRUE);
4754 case MARSHAL_ACTION_MANAGED_CONV_IN:
4755 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4756 klass->blittable || klass->enumtype) {
4761 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4763 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4767 mono_mb_emit_ldarg (mb, argnum);
4769 mono_mb_emit_ldarg_addr (mb, argnum);
4770 mono_mb_emit_stloc (mb, 0);
4773 mono_mb_emit_ldloc (mb, 0);
4774 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4777 mono_mb_emit_ldloc_addr (mb, conv_arg);
4778 mono_mb_emit_stloc (mb, 1);
4780 /* emit valuetype conversion code */
4781 emit_struct_conv (mb, klass, TRUE);
4784 mono_mb_patch_branch (mb, pos);
4787 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4788 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4789 klass->blittable || klass->enumtype) {
4793 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4796 /* Check for null */
4797 mono_mb_emit_ldarg (mb, argnum);
4798 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4801 mono_mb_emit_ldloc_addr (mb, conv_arg);
4802 mono_mb_emit_stloc (mb, 0);
4805 mono_mb_emit_ldarg (mb, argnum);
4806 mono_mb_emit_stloc (mb, 1);
4808 /* emit valuetype conversion code */
4809 emit_struct_conv (mb, klass, FALSE);
4811 mono_mb_patch_branch (mb, pos2);
4814 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4815 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4816 klass->blittable || klass->enumtype) {
4817 mono_mb_emit_stloc (mb, 3);
4822 /* load pointer to returned value type */
4823 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4824 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4826 /* store the address of the source into local variable 0 */
4827 mono_mb_emit_stloc (mb, 0);
4828 /* allocate space for the native struct and
4829 * store the address into dst_ptr */
4830 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4831 m->retobj_class = klass;
4832 g_assert (m->retobj_var);
4833 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4834 mono_mb_emit_byte (mb, CEE_CONV_I);
4835 mono_mb_emit_icall (mb, mono_marshal_alloc);
4836 mono_mb_emit_stloc (mb, 1);
4837 mono_mb_emit_ldloc (mb, 1);
4838 mono_mb_emit_stloc (mb, m->retobj_var);
4840 /* emit valuetype conversion code */
4841 emit_struct_conv (mb, klass, FALSE);
4845 g_assert_not_reached ();
4852 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4853 MonoMarshalSpec *spec,
4854 int conv_arg, MonoType **conv_arg_type,
4855 MarshalAction action)
4859 case MARSHAL_ACTION_CONV_IN:
4860 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4862 case MARSHAL_ACTION_MANAGED_CONV_IN:
4863 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4867 MonoMethodBuilder *mb = m->mb;
4868 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4869 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4873 case MARSHAL_ACTION_CONV_IN:
4874 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4875 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4878 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4881 mono_mb_emit_ldarg (mb, argnum);
4882 mono_mb_emit_byte (mb, CEE_LDIND_I);
4884 mono_mb_emit_ldarg (mb, argnum);
4888 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4889 mono_mb_emit_exception_marshal_directive (mb, msg);
4891 mono_mb_emit_icall (mb, conv_to_icall (conv));
4893 mono_mb_emit_stloc (mb, conv_arg);
4897 case MARSHAL_ACTION_CONV_OUT:
4898 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4900 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4901 mono_mb_emit_exception_marshal_directive (mb, msg);
4905 if (encoding == MONO_NATIVE_VBBYREFSTR) {
4906 static MonoMethod *m;
4909 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
4914 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
4915 mono_mb_emit_exception_marshal_directive (mb, msg);
4920 * Have to allocate a new string with the same length as the original, and
4921 * copy the contents of the buffer pointed to by CONV_ARG into it.
4923 g_assert (t->byref);
4924 mono_mb_emit_ldarg (mb, argnum);
4925 mono_mb_emit_ldloc (mb, conv_arg);
4926 mono_mb_emit_ldarg (mb, argnum);
4927 mono_mb_emit_byte (mb, CEE_LDIND_I);
4928 mono_mb_emit_managed_call (mb, m, NULL);
4929 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
4930 mono_mb_emit_byte (mb, CEE_STIND_REF);
4931 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
4932 mono_mb_emit_ldarg (mb, argnum);
4933 mono_mb_emit_ldloc (mb, conv_arg);
4934 mono_mb_emit_icall (mb, conv_to_icall (conv));
4935 mono_mb_emit_byte (mb, CEE_STIND_REF);
4940 mono_mb_emit_ldloc (mb, conv_arg);
4941 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4942 mono_mb_emit_icall (mb, mono_free_bstr);
4944 mono_mb_emit_icall (mb, mono_marshal_free);
4948 case MARSHAL_ACTION_PUSH:
4949 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
4950 mono_mb_emit_ldloc_addr (mb, conv_arg);
4952 mono_mb_emit_ldloc (mb, conv_arg);
4955 case MARSHAL_ACTION_CONV_RESULT:
4956 mono_mb_emit_stloc (mb, 0);
4958 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4960 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4961 mono_mb_emit_exception_marshal_directive (mb, msg);
4965 mono_mb_emit_ldloc (mb, 0);
4966 mono_mb_emit_icall (mb, conv_to_icall (conv));
4967 mono_mb_emit_stloc (mb, 3);
4969 /* free the string */
4970 mono_mb_emit_ldloc (mb, 0);
4971 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4972 mono_mb_emit_icall (mb, mono_free_bstr);
4974 mono_mb_emit_icall (mb, mono_marshal_free);
4977 case MARSHAL_ACTION_MANAGED_CONV_IN:
4978 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4980 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4983 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4987 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4989 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4990 mono_mb_emit_exception_marshal_directive (mb, msg);
4994 mono_mb_emit_ldarg (mb, argnum);
4996 mono_mb_emit_byte (mb, CEE_LDIND_I);
4997 mono_mb_emit_icall (mb, conv_to_icall (conv));
4998 mono_mb_emit_stloc (mb, conv_arg);
5001 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5004 mono_mb_emit_ldarg (mb, argnum);
5005 mono_mb_emit_ldloc (mb, conv_arg);
5006 mono_mb_emit_icall (mb, conv_to_icall (conv));
5007 mono_mb_emit_byte (mb, CEE_STIND_I);
5012 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5013 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5014 /* We need to make a copy so the caller is able to free it */
5015 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5017 mono_mb_emit_icall (mb, conv_to_icall (conv));
5018 mono_mb_emit_stloc (mb, 3);
5022 g_assert_not_reached ();
5030 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5031 MonoMarshalSpec *spec, int conv_arg,
5032 MonoType **conv_arg_type, MarshalAction action)
5035 if (action == MARSHAL_ACTION_CONV_IN)
5036 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5038 MonoMethodBuilder *mb = m->mb;
5041 case MARSHAL_ACTION_CONV_IN: {
5042 MonoType *intptr_type;
5043 int dar_release_slot, pos;
5045 intptr_type = &mono_defaults.int_class->byval_arg;
5046 conv_arg = mono_mb_add_local (mb, intptr_type);
5047 *conv_arg_type = intptr_type;
5049 if (!sh_dangerous_add_ref)
5050 init_safe_handle ();
5052 mono_mb_emit_ldarg (mb, argnum);
5053 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5054 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5056 mono_mb_patch_branch (mb, pos);
5059 * My tests in show that ref SafeHandles are not really
5060 * passed as ref objects. Instead a NULL is passed as the
5063 mono_mb_emit_icon (mb, 0);
5064 mono_mb_emit_stloc (mb, conv_arg);
5068 /* Create local to hold the ref parameter to DangerousAddRef */
5069 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5071 /* set release = false; */
5072 mono_mb_emit_icon (mb, 0);
5073 mono_mb_emit_stloc (mb, dar_release_slot);
5075 /* safehandle.DangerousAddRef (ref release) */
5076 mono_mb_emit_ldarg (mb, argnum);
5077 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5078 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5080 /* Pull the handle field from SafeHandle */
5081 mono_mb_emit_ldarg (mb, argnum);
5082 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5083 mono_mb_emit_byte (mb, CEE_LDIND_I);
5084 mono_mb_emit_stloc (mb, conv_arg);
5089 case MARSHAL_ACTION_PUSH:
5091 mono_mb_emit_ldloc_addr (mb, conv_arg);
5093 mono_mb_emit_ldloc (mb, conv_arg);
5096 case MARSHAL_ACTION_CONV_OUT: {
5097 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5098 int dar_release_slot = conv_arg + 1;
5101 if (!sh_dangerous_release)
5102 init_safe_handle ();
5108 * My tests indicate that ref SafeHandles parameters are not actually
5109 * passed by ref, but instead a new Handle is created regardless of
5110 * whether a change happens in the unmanaged side.
5112 * Also, the Handle is created before calling into unmanaged code,
5113 * but we do not support that mechanism (getting to the original
5114 * handle) and it makes no difference where we create this
5116 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5118 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5121 /* refval = new SafeHandleDerived ()*/
5122 mono_mb_emit_ldarg (mb, argnum);
5123 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5124 mono_mb_emit_byte (mb, CEE_STIND_REF);
5126 /* refval.handle = returned_handle */
5127 mono_mb_emit_ldarg (mb, argnum);
5128 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5129 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5130 mono_mb_emit_ldloc (mb, conv_arg);
5131 mono_mb_emit_byte (mb, CEE_STIND_I);
5133 mono_mb_emit_ldloc (mb, dar_release_slot);
5134 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5135 mono_mb_emit_ldarg (mb, argnum);
5136 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5137 mono_mb_patch_branch (mb, label_next);
5142 case MARSHAL_ACTION_CONV_RESULT: {
5143 MonoMethod *ctor = NULL;
5144 int intptr_handle_slot;
5146 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5147 mono_mb_emit_byte (mb, CEE_POP);
5148 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5152 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5154 mono_mb_emit_byte (mb, CEE_POP);
5155 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5158 /* Store the IntPtr results into a local */
5159 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5160 mono_mb_emit_stloc (mb, intptr_handle_slot);
5162 /* Create return value */
5163 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5164 mono_mb_emit_stloc (mb, 3);
5166 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5167 mono_mb_emit_ldloc (mb, 3);
5168 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5169 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5170 mono_mb_emit_byte (mb, CEE_STIND_I);
5174 case MARSHAL_ACTION_MANAGED_CONV_IN:
5175 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5178 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5179 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5182 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5183 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5186 printf ("Unhandled case for MarshalAction: %d\n", action);
5194 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5195 MonoMarshalSpec *spec, int conv_arg,
5196 MonoType **conv_arg_type, MarshalAction action)
5199 if (action == MARSHAL_ACTION_CONV_IN)
5200 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5202 MonoMethodBuilder *mb = m->mb;
5205 case MARSHAL_ACTION_CONV_IN: {
5206 MonoType *intptr_type;
5208 intptr_type = &mono_defaults.int_class->byval_arg;
5209 conv_arg = mono_mb_add_local (mb, intptr_type);
5210 *conv_arg_type = intptr_type;
5213 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5214 mono_mb_emit_exception_marshal_directive (mb, msg);
5217 mono_mb_emit_ldarg_addr (mb, argnum);
5218 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5219 mono_mb_emit_byte (mb, CEE_ADD);
5220 mono_mb_emit_byte (mb, CEE_LDIND_I);
5221 mono_mb_emit_stloc (mb, conv_arg);
5225 case MARSHAL_ACTION_PUSH:
5226 mono_mb_emit_ldloc (mb, conv_arg);
5229 case MARSHAL_ACTION_CONV_OUT: {
5230 /* no resource release required */
5234 case MARSHAL_ACTION_CONV_RESULT: {
5235 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5236 mono_mb_emit_exception_marshal_directive (mb, msg);
5240 case MARSHAL_ACTION_MANAGED_CONV_IN:
5241 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5244 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5245 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5248 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5249 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5252 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5260 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5261 MonoMarshalSpec *spec,
5262 int conv_arg, MonoType **conv_arg_type,
5263 MarshalAction action)
5266 if (action == MARSHAL_ACTION_CONV_IN)
5267 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5269 MonoMethodBuilder *mb = m->mb;
5270 MonoClass *klass = mono_class_from_mono_type (t);
5274 case MARSHAL_ACTION_CONV_IN:
5275 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5276 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5278 m->orig_conv_args [argnum] = 0;
5280 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5281 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5282 mono_mb_emit_exception_marshal_directive (mb, msg);
5286 if (klass->delegate) {
5288 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5289 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5290 mono_mb_emit_exception_marshal_directive (mb, msg);
5292 mono_mb_emit_byte (mb, CEE_LDNULL);
5293 mono_mb_emit_stloc (mb, conv_arg);
5295 mono_mb_emit_ldarg (mb, argnum);
5296 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5297 mono_mb_emit_stloc (mb, conv_arg);
5299 } else if (klass == mono_defaults.stringbuilder_class) {
5300 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5301 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5305 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5306 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5307 mono_mb_emit_exception_marshal_directive (mb, msg);
5313 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5317 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5318 mono_mb_emit_exception_marshal_directive (mb, msg);
5322 mono_mb_emit_ldarg (mb, argnum);
5324 mono_mb_emit_byte (mb, CEE_LDIND_I);
5326 mono_mb_emit_icall (mb, conv_to_icall (conv));
5327 mono_mb_emit_stloc (mb, conv_arg);
5328 } else if (klass->blittable) {
5329 mono_mb_emit_byte (mb, CEE_LDNULL);
5330 mono_mb_emit_stloc (mb, conv_arg);
5332 mono_mb_emit_ldarg (mb, argnum);
5333 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5335 mono_mb_emit_ldarg (mb, argnum);
5336 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5337 mono_mb_emit_stloc (mb, conv_arg);
5339 mono_mb_patch_branch (mb, pos);
5342 mono_mb_emit_byte (mb, CEE_LDNULL);
5343 mono_mb_emit_stloc (mb, conv_arg);
5346 /* we dont need any conversions for out parameters */
5347 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5350 mono_mb_emit_ldarg (mb, argnum);
5351 mono_mb_emit_byte (mb, CEE_LDIND_I);
5354 mono_mb_emit_ldarg (mb, argnum);
5355 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5356 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5359 /* store the address of the source into local variable 0 */
5360 mono_mb_emit_stloc (mb, 0);
5361 mono_mb_emit_ldloc (mb, 0);
5362 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5364 /* allocate space for the native struct and store the address */
5365 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5366 mono_mb_emit_byte (mb, CEE_PREFIX1);
5367 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5368 mono_mb_emit_stloc (mb, conv_arg);
5371 /* Need to store the original buffer so we can free it later */
5372 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5373 mono_mb_emit_ldloc (mb, conv_arg);
5374 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5377 /* set the src_ptr */
5378 mono_mb_emit_ldloc (mb, 0);
5379 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5380 mono_mb_emit_stloc (mb, 0);
5383 mono_mb_emit_ldloc (mb, conv_arg);
5384 mono_mb_emit_stloc (mb, 1);
5386 /* emit valuetype conversion code */
5387 emit_struct_conv (mb, klass, FALSE);
5389 mono_mb_patch_branch (mb, pos);
5393 case MARSHAL_ACTION_CONV_OUT:
5394 if (klass == mono_defaults.stringbuilder_class) {
5396 MonoMarshalNative encoding;
5397 MonoMarshalConv conv;
5399 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5400 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5402 g_assert (encoding != -1);
5405 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5409 mono_mb_emit_ldarg (mb, argnum);
5410 mono_mb_emit_ldloc (mb, conv_arg);
5413 case MONO_NATIVE_LPWSTR:
5414 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5416 case MONO_NATIVE_LPSTR:
5417 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5420 g_assert_not_reached ();
5423 mono_mb_emit_byte (mb, CEE_STIND_REF);
5425 mono_mb_emit_ldarg (mb, argnum);
5426 mono_mb_emit_ldloc (mb, conv_arg);
5428 mono_mb_emit_icall (mb, conv_to_icall (conv));
5432 mono_mb_emit_ldloc (mb, conv_arg);
5433 mono_mb_emit_icall (mb, mono_marshal_free);
5438 if (klass->delegate) {
5440 mono_mb_emit_ldarg (mb, argnum);
5441 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5442 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5443 mono_mb_emit_ldloc (mb, conv_arg);
5444 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5445 mono_mb_emit_byte (mb, CEE_STIND_REF);
5450 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5451 /* allocate a new object */
5452 mono_mb_emit_ldarg (mb, argnum);
5453 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5454 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5455 mono_mb_emit_byte (mb, CEE_STIND_REF);
5458 /* dst = *argument */
5459 mono_mb_emit_ldarg (mb, argnum);
5462 mono_mb_emit_byte (mb, CEE_LDIND_I);
5464 mono_mb_emit_stloc (mb, 1);
5466 mono_mb_emit_ldloc (mb, 1);
5467 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5469 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5470 mono_mb_emit_ldloc (mb, 1);
5471 mono_mb_emit_icon (mb, sizeof (MonoObject));
5472 mono_mb_emit_byte (mb, CEE_ADD);
5473 mono_mb_emit_stloc (mb, 1);
5475 /* src = tmp_locals [i] */
5476 mono_mb_emit_ldloc (mb, conv_arg);
5477 mono_mb_emit_stloc (mb, 0);
5479 /* emit valuetype conversion code */
5480 emit_struct_conv (mb, klass, TRUE);
5482 /* Free the structure returned by the native code */
5483 emit_struct_free (mb, klass, conv_arg);
5485 if (m->orig_conv_args [argnum]) {
5487 * If the native function changed the pointer, then free
5488 * the original structure plus the new pointer.
5490 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5491 mono_mb_emit_ldloc (mb, conv_arg);
5492 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5494 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5495 g_assert (m->orig_conv_args [argnum]);
5497 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5500 mono_mb_emit_ldloc (mb, conv_arg);
5501 mono_mb_emit_icall (mb, mono_marshal_free);
5503 mono_mb_patch_branch (mb, pos2);
5507 /* Free the original structure passed to native code */
5508 emit_struct_free (mb, klass, conv_arg);
5510 mono_mb_patch_branch (mb, pos);
5513 case MARSHAL_ACTION_PUSH:
5515 mono_mb_emit_ldloc_addr (mb, conv_arg);
5517 mono_mb_emit_ldloc (mb, conv_arg);
5520 case MARSHAL_ACTION_CONV_RESULT:
5521 if (klass->delegate) {
5522 g_assert (!t->byref);
5523 mono_mb_emit_stloc (mb, 0);
5524 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5525 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5526 mono_mb_emit_ldloc (mb, 0);
5527 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5528 mono_mb_emit_stloc (mb, 3);
5531 mono_mb_emit_stloc (mb, 0);
5533 /* Make a copy since emit_conv modifies local 0 */
5534 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5535 mono_mb_emit_ldloc (mb, 0);
5536 mono_mb_emit_stloc (mb, loc);
5538 mono_mb_emit_byte (mb, CEE_LDNULL);
5539 mono_mb_emit_stloc (mb, 3);
5541 mono_mb_emit_ldloc (mb, 0);
5542 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5544 /* allocate result object */
5546 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5547 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5548 mono_mb_emit_stloc (mb, 3);
5552 mono_mb_emit_ldloc (mb, 3);
5553 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5554 mono_mb_emit_stloc (mb, 1);
5556 /* emit conversion code */
5557 emit_struct_conv (mb, klass, TRUE);
5559 emit_struct_free (mb, klass, loc);
5561 /* Free the pointer allocated by unmanaged code */
5562 mono_mb_emit_ldloc (mb, loc);
5563 mono_mb_emit_icall (mb, mono_marshal_free);
5564 mono_mb_patch_branch (mb, pos);
5568 case MARSHAL_ACTION_MANAGED_CONV_IN:
5569 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5571 if (klass->delegate) {
5572 g_assert (!t->byref);
5573 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5574 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5575 mono_mb_emit_ldarg (mb, argnum);
5576 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5577 mono_mb_emit_stloc (mb, conv_arg);
5581 if (klass == mono_defaults.stringbuilder_class) {
5582 MonoMarshalNative encoding;
5584 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5587 g_assert (encoding == MONO_NATIVE_LPSTR);
5589 g_assert (!t->byref);
5590 g_assert (encoding != -1);
5592 mono_mb_emit_ldarg (mb, argnum);
5593 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5594 mono_mb_emit_stloc (mb, conv_arg);
5598 /* The class can not have an automatic layout */
5599 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5600 mono_mb_emit_auto_layout_exception (mb, klass);
5604 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5605 mono_mb_emit_byte (mb, CEE_LDNULL);
5606 mono_mb_emit_stloc (mb, conv_arg);
5611 mono_mb_emit_ldarg (mb, argnum);
5615 /* Check for NULL and raise an exception */
5616 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5618 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5620 mono_mb_patch_branch (mb, pos2);
5621 mono_mb_emit_ldarg (mb, argnum);
5622 mono_mb_emit_byte (mb, CEE_LDIND_I);
5625 mono_mb_emit_stloc (mb, 0);
5627 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5628 mono_mb_emit_stloc (mb, conv_arg);
5630 mono_mb_emit_ldloc (mb, 0);
5631 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5633 /* Create and set dst */
5634 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5635 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5636 mono_mb_emit_stloc (mb, conv_arg);
5637 mono_mb_emit_ldloc (mb, conv_arg);
5638 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5639 mono_mb_emit_stloc (mb, 1);
5641 /* emit valuetype conversion code */
5642 emit_struct_conv (mb, klass, TRUE);
5644 mono_mb_patch_branch (mb, pos);
5647 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5649 /* Check for null */
5650 mono_mb_emit_ldloc (mb, conv_arg);
5651 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5652 mono_mb_emit_ldarg (mb, argnum);
5653 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5654 mono_mb_emit_byte (mb, CEE_STIND_REF);
5655 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5657 mono_mb_patch_branch (mb, pos);
5660 mono_mb_emit_ldloc (mb, conv_arg);
5661 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5662 mono_mb_emit_stloc (mb, 0);
5664 /* Allocate and set dest */
5665 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5666 mono_mb_emit_byte (mb, CEE_CONV_I);
5667 mono_mb_emit_icall (mb, mono_marshal_alloc);
5668 mono_mb_emit_stloc (mb, 1);
5670 /* Update argument pointer */
5671 mono_mb_emit_ldarg (mb, argnum);
5672 mono_mb_emit_ldloc (mb, 1);
5673 mono_mb_emit_byte (mb, CEE_STIND_I);
5675 /* emit valuetype conversion code */
5676 emit_struct_conv (mb, klass, FALSE);
5678 mono_mb_patch_branch (mb, pos2);
5680 /* byval [Out] marshalling */
5682 /* FIXME: Handle null */
5685 mono_mb_emit_ldloc (mb, conv_arg);
5686 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5687 mono_mb_emit_stloc (mb, 0);
5690 mono_mb_emit_ldarg (mb, argnum);
5691 mono_mb_emit_stloc (mb, 1);
5693 /* emit valuetype conversion code */
5694 emit_struct_conv (mb, klass, FALSE);
5698 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5699 if (klass->delegate) {
5700 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5701 mono_mb_emit_stloc (mb, 3);
5705 /* The class can not have an automatic layout */
5706 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5707 mono_mb_emit_auto_layout_exception (mb, klass);
5711 mono_mb_emit_stloc (mb, 0);
5712 /* Check for null */
5713 mono_mb_emit_ldloc (mb, 0);
5714 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5715 mono_mb_emit_byte (mb, CEE_LDNULL);
5716 mono_mb_emit_stloc (mb, 3);
5717 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5719 mono_mb_patch_branch (mb, pos);
5722 mono_mb_emit_ldloc (mb, 0);
5723 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5724 mono_mb_emit_stloc (mb, 0);
5726 /* Allocate and set dest */
5727 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5728 mono_mb_emit_byte (mb, CEE_CONV_I);
5729 mono_mb_emit_icall (mb, mono_marshal_alloc);
5730 mono_mb_emit_byte (mb, CEE_DUP);
5731 mono_mb_emit_stloc (mb, 1);
5732 mono_mb_emit_stloc (mb, 3);
5734 emit_struct_conv (mb, klass, FALSE);
5736 mono_mb_patch_branch (mb, pos2);
5740 g_assert_not_reached ();
5751 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5752 MonoMarshalSpec *spec,
5753 int conv_arg, MonoType **conv_arg_type,
5754 MarshalAction action)
5756 MonoMethodBuilder *mb = m->mb;
5757 static MonoMethod *get_object_for_native_variant = NULL;
5758 static MonoMethod *get_native_variant_for_object = NULL;
5760 if (!get_object_for_native_variant)
5761 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5762 g_assert (get_object_for_native_variant);
5764 if (!get_native_variant_for_object)
5765 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5766 g_assert (get_native_variant_for_object);
5769 case MARSHAL_ACTION_CONV_IN: {
5770 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5773 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5775 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5777 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5780 mono_mb_emit_ldarg (mb, argnum);
5782 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5783 mono_mb_emit_ldloc_addr (mb, conv_arg);
5784 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5788 case MARSHAL_ACTION_CONV_OUT: {
5789 static MonoMethod *variant_clear = NULL;
5792 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5793 g_assert (variant_clear);
5796 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5797 mono_mb_emit_ldarg (mb, argnum);
5798 mono_mb_emit_ldloc_addr (mb, conv_arg);
5799 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5800 mono_mb_emit_byte (mb, CEE_STIND_REF);
5803 mono_mb_emit_ldloc_addr (mb, conv_arg);
5804 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5808 case MARSHAL_ACTION_PUSH:
5810 mono_mb_emit_ldloc_addr (mb, conv_arg);
5812 mono_mb_emit_ldloc (mb, conv_arg);
5815 case MARSHAL_ACTION_CONV_RESULT: {
5816 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5817 mono_mb_emit_exception_marshal_directive (mb, msg);
5821 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5822 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5825 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5827 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5829 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5833 mono_mb_emit_ldarg (mb, argnum);
5835 mono_mb_emit_ldarg_addr (mb, argnum);
5836 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5837 mono_mb_emit_stloc (mb, conv_arg);
5841 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5842 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5843 mono_mb_emit_ldloc (mb, conv_arg);
5844 mono_mb_emit_ldarg (mb, argnum);
5845 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5850 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5851 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5852 mono_mb_emit_exception_marshal_directive (mb, msg);
5857 g_assert_not_reached ();
5863 #endif /* DISABLE_COM */
5864 #endif /* DISABLE_JIT */
5867 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5869 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5870 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5872 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5874 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
5886 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5887 MonoMarshalSpec *spec,
5888 int conv_arg, MonoType **conv_arg_type,
5889 MarshalAction action)
5893 case MARSHAL_ACTION_CONV_IN:
5894 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5896 case MARSHAL_ACTION_MANAGED_CONV_IN:
5897 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5901 MonoMethodBuilder *mb = m->mb;
5902 MonoClass *klass = mono_class_from_mono_type (t);
5903 gboolean need_convert, need_free;
5904 MonoMarshalNative encoding;
5906 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5909 case MARSHAL_ACTION_CONV_IN:
5910 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5911 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5913 if (klass->element_class->blittable) {
5914 mono_mb_emit_ldarg (mb, argnum);
5916 mono_mb_emit_byte (mb, CEE_LDIND_I);
5917 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
5918 mono_mb_emit_stloc (mb, conv_arg);
5921 guint32 label1, label2, label3;
5922 int index_var, src_var, dest_ptr, esize;
5923 MonoMarshalConv conv;
5924 gboolean is_string = FALSE;
5926 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5928 eklass = klass->element_class;
5930 if (eklass == mono_defaults.string_class) {
5932 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5934 else if (eklass == mono_defaults.stringbuilder_class) {
5936 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5941 if (is_string && conv == -1) {
5942 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
5943 mono_mb_emit_exception_marshal_directive (mb, msg);
5947 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5948 mono_mb_emit_ldarg (mb, argnum);
5950 mono_mb_emit_byte (mb, CEE_LDIND_I);
5951 mono_mb_emit_stloc (mb, src_var);
5954 mono_mb_emit_ldloc (mb, src_var);
5955 mono_mb_emit_stloc (mb, conv_arg);
5956 mono_mb_emit_ldloc (mb, src_var);
5957 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5960 esize = sizeof (gpointer);
5961 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
5962 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
5964 esize = mono_class_native_size (eklass, NULL);
5966 /* allocate space for the native struct and store the address */
5967 mono_mb_emit_icon (mb, esize);
5968 mono_mb_emit_ldloc (mb, src_var);
5969 mono_mb_emit_byte (mb, CEE_LDLEN);
5971 if (eklass == mono_defaults.string_class) {
5972 /* Make the array bigger for the terminating null */
5973 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
5974 mono_mb_emit_byte (mb, CEE_ADD);
5976 mono_mb_emit_byte (mb, CEE_MUL);
5977 mono_mb_emit_byte (mb, CEE_PREFIX1);
5978 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5979 mono_mb_emit_stloc (mb, conv_arg);
5981 mono_mb_emit_ldloc (mb, conv_arg);
5982 mono_mb_emit_stloc (mb, dest_ptr);
5984 /* Emit marshalling loop */
5985 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5986 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5987 mono_mb_emit_stloc (mb, index_var);
5988 label2 = mono_mb_get_label (mb);
5989 mono_mb_emit_ldloc (mb, index_var);
5990 mono_mb_emit_ldloc (mb, src_var);
5991 mono_mb_emit_byte (mb, CEE_LDLEN);
5992 label3 = mono_mb_emit_branch (mb, CEE_BGE);
5994 /* Emit marshalling code */
5997 mono_mb_emit_ldloc (mb, dest_ptr);
5998 mono_mb_emit_ldloc (mb, src_var);
5999 mono_mb_emit_ldloc (mb, index_var);
6000 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6001 mono_mb_emit_icall (mb, conv_to_icall (conv));
6002 mono_mb_emit_byte (mb, CEE_STIND_I);
6004 /* set the src_ptr */
6005 mono_mb_emit_ldloc (mb, src_var);
6006 mono_mb_emit_ldloc (mb, index_var);
6007 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6008 mono_mb_emit_stloc (mb, 0);
6011 mono_mb_emit_ldloc (mb, dest_ptr);
6012 mono_mb_emit_stloc (mb, 1);
6014 /* emit valuetype conversion code */
6015 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
6018 mono_mb_emit_add_to_local (mb, index_var, 1);
6019 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6021 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6023 mono_mb_patch_branch (mb, label3);
6025 if (eklass == mono_defaults.string_class) {
6026 /* Null terminate */
6027 mono_mb_emit_ldloc (mb, dest_ptr);
6028 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6029 mono_mb_emit_byte (mb, CEE_STIND_REF);
6032 mono_mb_patch_branch (mb, label1);
6037 case MARSHAL_ACTION_CONV_OUT:
6038 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6039 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);
6040 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6043 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6044 int param_num = spec->data.array_data.param_num;
6045 MonoType *param_type;
6047 param_type = m->sig->params [param_num];
6049 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6050 char *msg = g_strdup ("Not implemented.");
6051 mono_mb_emit_exception_marshal_directive (mb, msg);
6055 mono_mb_emit_ldarg (mb, argnum);
6057 /* Create the managed array */
6058 mono_mb_emit_ldarg (mb, param_num);
6059 if (m->sig->params [param_num]->byref)
6060 // FIXME: Support other types
6061 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6062 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6063 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6064 /* Store into argument */
6065 mono_mb_emit_byte (mb, CEE_STIND_I);
6068 if (need_convert || need_free) {
6069 /* FIXME: Optimize blittable case */
6071 guint32 label1, label2, label3;
6072 int index_var, src_ptr, loc, esize;
6074 eklass = klass->element_class;
6075 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6076 esize = sizeof (gpointer);
6077 else if (eklass == mono_defaults.char_class)
6078 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6080 esize = mono_class_native_size (eklass, NULL);
6081 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6082 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6085 mono_mb_emit_ldarg (mb, argnum);
6087 mono_mb_emit_byte (mb, CEE_LDIND_I);
6088 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6090 mono_mb_emit_ldloc (mb, conv_arg);
6091 mono_mb_emit_stloc (mb, src_ptr);
6093 /* Emit marshalling loop */
6094 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6095 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6096 mono_mb_emit_stloc (mb, index_var);
6097 label2 = mono_mb_get_label (mb);
6098 mono_mb_emit_ldloc (mb, index_var);
6099 mono_mb_emit_ldarg (mb, argnum);
6101 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6102 mono_mb_emit_byte (mb, CEE_LDLEN);
6103 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6105 /* Emit marshalling code */
6107 if (eklass == mono_defaults.stringbuilder_class) {
6108 gboolean need_free2;
6109 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6111 g_assert (conv != -1);
6114 mono_mb_emit_ldarg (mb, argnum);
6116 mono_mb_emit_byte (mb, CEE_LDIND_I);
6117 mono_mb_emit_ldloc (mb, index_var);
6118 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6121 mono_mb_emit_ldloc (mb, src_ptr);
6122 mono_mb_emit_byte (mb, CEE_LDIND_I);
6124 mono_mb_emit_icall (mb, conv_to_icall (conv));
6128 mono_mb_emit_ldloc (mb, src_ptr);
6129 mono_mb_emit_byte (mb, CEE_LDIND_I);
6131 mono_mb_emit_icall (mb, mono_marshal_free);
6134 else if (eklass == mono_defaults.string_class) {
6137 mono_mb_emit_ldloc (mb, src_ptr);
6138 mono_mb_emit_byte (mb, CEE_LDIND_I);
6140 mono_mb_emit_icall (mb, mono_marshal_free);
6145 /* set the src_ptr */
6146 mono_mb_emit_ldloc (mb, src_ptr);
6147 mono_mb_emit_stloc (mb, 0);
6150 mono_mb_emit_ldarg (mb, argnum);
6152 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6153 mono_mb_emit_ldloc (mb, index_var);
6154 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6155 mono_mb_emit_stloc (mb, 1);
6157 /* emit valuetype conversion code */
6158 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
6162 mono_mb_emit_ldloc (mb, src_ptr);
6163 mono_mb_emit_stloc (mb, loc);
6164 mono_mb_emit_ldloc (mb, loc);
6166 emit_struct_free (mb, eklass, loc);
6170 mono_mb_emit_add_to_local (mb, index_var, 1);
6171 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6173 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6175 mono_mb_patch_branch (mb, label1);
6176 mono_mb_patch_branch (mb, label3);
6179 if (klass->element_class->blittable) {
6180 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6182 mono_mb_emit_ldarg (mb, argnum);
6184 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6185 mono_mb_emit_ldloc (mb, conv_arg);
6186 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6191 case MARSHAL_ACTION_PUSH:
6193 mono_mb_emit_ldloc_addr (mb, conv_arg);
6195 mono_mb_emit_ldloc (mb, conv_arg);
6198 case MARSHAL_ACTION_CONV_RESULT:
6199 /* fixme: we need conversions here */
6200 mono_mb_emit_stloc (mb, 3);
6203 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6205 guint32 label1, label2, label3;
6206 int index_var, src_ptr, esize, param_num, num_elem;
6207 MonoMarshalConv conv;
6208 gboolean is_string = FALSE;
6210 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6211 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6214 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6215 mono_mb_emit_exception_marshal_directive (mb, msg);
6219 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6220 mono_mb_emit_exception_marshal_directive (mb, msg);
6223 if (spec->native != MONO_NATIVE_LPARRAY) {
6224 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6225 mono_mb_emit_exception_marshal_directive (mb, msg);
6229 /* FIXME: t is from the method which is wrapped, not the delegate type */
6230 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6232 param_num = spec->data.array_data.param_num;
6233 num_elem = spec->data.array_data.num_elem;
6234 if (spec->data.array_data.elem_mult == 0)
6235 /* param_num is not specified */
6238 if (param_num == -1) {
6239 if (num_elem <= 0) {
6240 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6241 mono_mb_emit_exception_marshal_directive (mb, msg);
6246 /* FIXME: Optimize blittable case */
6248 eklass = klass->element_class;
6249 if (eklass == mono_defaults.string_class) {
6251 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6253 else if (eklass == mono_defaults.stringbuilder_class) {
6255 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6260 mono_marshal_load_type_info (eklass);
6263 esize = sizeof (gpointer);
6265 esize = mono_class_native_size (eklass, NULL);
6266 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6268 mono_mb_emit_byte (mb, CEE_LDNULL);
6269 mono_mb_emit_stloc (mb, conv_arg);
6271 /* Check param index */
6272 if (param_num != -1) {
6273 if (param_num >= m->sig->param_count) {
6274 char *msg = g_strdup ("Array size control parameter index is out of range.");
6275 mono_mb_emit_exception_marshal_directive (mb, msg);
6278 switch (m->sig->params [param_num]->type) {
6291 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6292 mono_mb_emit_exception_marshal_directive (mb, msg);
6299 mono_mb_emit_ldarg (mb, argnum);
6300 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6302 mono_mb_emit_ldarg (mb, argnum);
6303 mono_mb_emit_stloc (mb, src_ptr);
6305 /* Create managed array */
6307 * The LPArray marshalling spec says that sometimes param_num starts
6308 * from 1, sometimes it starts from 0. But MS seems to allways start
6312 if (param_num == -1) {
6313 mono_mb_emit_icon (mb, num_elem);
6315 mono_mb_emit_ldarg (mb, param_num);
6317 mono_mb_emit_icon (mb, num_elem);
6318 mono_mb_emit_byte (mb, CEE_ADD);
6320 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6323 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6324 mono_mb_emit_stloc (mb, conv_arg);
6326 if (eklass->blittable) {
6327 mono_mb_emit_ldloc (mb, conv_arg);
6328 mono_mb_emit_byte (mb, CEE_CONV_I);
6329 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6330 mono_mb_emit_byte (mb, CEE_ADD);
6331 mono_mb_emit_ldarg (mb, argnum);
6332 mono_mb_emit_ldloc (mb, conv_arg);
6333 mono_mb_emit_byte (mb, CEE_LDLEN);
6334 mono_mb_emit_icon (mb, esize);
6335 mono_mb_emit_byte (mb, CEE_MUL);
6336 mono_mb_emit_byte (mb, CEE_PREFIX1);
6337 mono_mb_emit_byte (mb, CEE_CPBLK);
6341 /* Emit marshalling loop */
6342 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6343 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6344 mono_mb_emit_stloc (mb, index_var);
6345 label2 = mono_mb_get_label (mb);
6346 mono_mb_emit_ldloc (mb, index_var);
6347 mono_mb_emit_ldloc (mb, conv_arg);
6348 mono_mb_emit_byte (mb, CEE_LDLEN);
6349 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6351 /* Emit marshalling code */
6353 g_assert (conv != -1);
6355 mono_mb_emit_ldloc (mb, conv_arg);
6356 mono_mb_emit_ldloc (mb, index_var);
6358 mono_mb_emit_ldloc (mb, src_ptr);
6359 mono_mb_emit_byte (mb, CEE_LDIND_I);
6361 mono_mb_emit_icall (mb, conv_to_icall (conv));
6362 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6365 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6366 mono_mb_emit_exception_marshal_directive (mb, msg);
6370 mono_mb_emit_add_to_local (mb, index_var, 1);
6371 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6373 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6375 mono_mb_patch_branch (mb, label1);
6376 mono_mb_patch_branch (mb, label3);
6380 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6382 guint32 label1, label2, label3;
6383 int index_var, dest_ptr, esize, param_num, num_elem;
6384 MonoMarshalConv conv;
6385 gboolean is_string = FALSE;
6388 /* Already handled in CONV_IN */
6391 /* These are already checked in CONV_IN */
6392 g_assert (!t->byref);
6393 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6394 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6396 param_num = spec->data.array_data.param_num;
6397 num_elem = spec->data.array_data.num_elem;
6399 if (spec->data.array_data.elem_mult == 0)
6400 /* param_num is not specified */
6403 if (param_num == -1) {
6404 if (num_elem <= 0) {
6405 g_assert_not_reached ();
6409 /* FIXME: Optimize blittable case */
6411 eklass = klass->element_class;
6412 if (eklass == mono_defaults.string_class) {
6414 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6416 else if (eklass == mono_defaults.stringbuilder_class) {
6418 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6423 mono_marshal_load_type_info (eklass);
6426 esize = sizeof (gpointer);
6428 esize = mono_class_native_size (eklass, NULL);
6430 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6433 mono_mb_emit_ldloc (mb, conv_arg);
6434 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6436 mono_mb_emit_ldarg (mb, argnum);
6437 mono_mb_emit_stloc (mb, dest_ptr);
6439 if (eklass->blittable) {
6441 mono_mb_emit_ldarg (mb, argnum);
6443 mono_mb_emit_ldloc (mb, conv_arg);
6444 mono_mb_emit_byte (mb, CEE_CONV_I);
6445 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6446 mono_mb_emit_byte (mb, CEE_ADD);
6448 mono_mb_emit_ldloc (mb, conv_arg);
6449 mono_mb_emit_byte (mb, CEE_LDLEN);
6450 mono_mb_emit_icon (mb, esize);
6451 mono_mb_emit_byte (mb, CEE_MUL);
6452 mono_mb_emit_byte (mb, CEE_PREFIX1);
6453 mono_mb_emit_byte (mb, CEE_CPBLK);
6457 /* Emit marshalling loop */
6458 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6459 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6460 mono_mb_emit_stloc (mb, index_var);
6461 label2 = mono_mb_get_label (mb);
6462 mono_mb_emit_ldloc (mb, index_var);
6463 mono_mb_emit_ldloc (mb, conv_arg);
6464 mono_mb_emit_byte (mb, CEE_LDLEN);
6465 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6467 /* Emit marshalling code */
6469 g_assert (conv != -1);
6472 mono_mb_emit_ldloc (mb, dest_ptr);
6475 mono_mb_emit_ldloc (mb, conv_arg);
6476 mono_mb_emit_ldloc (mb, index_var);
6478 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6480 mono_mb_emit_icall (mb, conv_to_icall (conv));
6481 mono_mb_emit_byte (mb, CEE_STIND_I);
6484 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6485 mono_mb_emit_exception_marshal_directive (mb, msg);
6489 mono_mb_emit_add_to_local (mb, index_var, 1);
6490 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6492 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6494 mono_mb_patch_branch (mb, label1);
6495 mono_mb_patch_branch (mb, label3);
6499 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6501 guint32 label1, label2, label3;
6502 int index_var, src, dest, esize;
6503 MonoMarshalConv conv = -1;
6504 gboolean is_string = FALSE;
6506 g_assert (!t->byref);
6508 eklass = klass->element_class;
6510 mono_marshal_load_type_info (eklass);
6512 if (eklass == mono_defaults.string_class) {
6514 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6517 g_assert_not_reached ();
6521 esize = sizeof (gpointer);
6522 else if (eklass == mono_defaults.char_class)
6523 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6525 esize = mono_class_native_size (eklass, NULL);
6527 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6528 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6530 mono_mb_emit_stloc (mb, src);
6531 mono_mb_emit_ldloc (mb, src);
6532 mono_mb_emit_stloc (mb, 3);
6534 /* Check for null */
6535 mono_mb_emit_ldloc (mb, src);
6536 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6538 /* Allocate native array */
6539 mono_mb_emit_icon (mb, esize);
6540 mono_mb_emit_ldloc (mb, src);
6541 mono_mb_emit_byte (mb, CEE_LDLEN);
6543 if (eklass == mono_defaults.string_class) {
6544 /* Make the array bigger for the terminating null */
6545 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6546 mono_mb_emit_byte (mb, CEE_ADD);
6548 mono_mb_emit_byte (mb, CEE_MUL);
6549 mono_mb_emit_icall (mb, mono_marshal_alloc);
6550 mono_mb_emit_stloc (mb, dest);
6551 mono_mb_emit_ldloc (mb, dest);
6552 mono_mb_emit_stloc (mb, 3);
6554 /* Emit marshalling loop */
6555 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6556 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6557 mono_mb_emit_stloc (mb, index_var);
6558 label2 = mono_mb_get_label (mb);
6559 mono_mb_emit_ldloc (mb, index_var);
6560 mono_mb_emit_ldloc (mb, src);
6561 mono_mb_emit_byte (mb, CEE_LDLEN);
6562 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6564 /* Emit marshalling code */
6566 g_assert (conv != -1);
6569 mono_mb_emit_ldloc (mb, dest);
6572 mono_mb_emit_ldloc (mb, src);
6573 mono_mb_emit_ldloc (mb, index_var);
6575 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6577 mono_mb_emit_icall (mb, conv_to_icall (conv));
6578 mono_mb_emit_byte (mb, CEE_STIND_I);
6581 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6582 mono_mb_emit_exception_marshal_directive (mb, msg);
6586 mono_mb_emit_add_to_local (mb, index_var, 1);
6587 mono_mb_emit_add_to_local (mb, dest, esize);
6589 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6591 mono_mb_patch_branch (mb, label3);
6592 mono_mb_patch_branch (mb, label1);
6596 g_assert_not_reached ();
6603 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6606 return &mono_defaults.int32_class->byval_arg;
6608 switch (spec->native) {
6609 case MONO_NATIVE_I1:
6610 case MONO_NATIVE_U1:
6611 return &mono_defaults.byte_class->byval_arg;
6612 case MONO_NATIVE_VARIANTBOOL:
6613 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6614 return &mono_defaults.int16_class->byval_arg;
6615 case MONO_NATIVE_BOOLEAN:
6616 return &mono_defaults.int32_class->byval_arg;
6618 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6619 return &mono_defaults.int32_class->byval_arg;
6625 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6627 MonoClass* conv_arg_class = mono_defaults.int32_class;
6629 switch (spec->native) {
6630 case MONO_NATIVE_I1:
6631 case MONO_NATIVE_U1:
6632 conv_arg_class = mono_defaults.byte_class;
6633 if (ldop) *ldop = CEE_LDIND_I1;
6635 case MONO_NATIVE_VARIANTBOOL:
6636 conv_arg_class = mono_defaults.int16_class;
6637 if (ldop) *ldop = CEE_LDIND_I2;
6639 case MONO_NATIVE_BOOLEAN:
6642 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6645 return conv_arg_class;
6649 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6650 MonoMarshalSpec *spec,
6651 int conv_arg, MonoType **conv_arg_type,
6652 MarshalAction action)
6656 case MARSHAL_ACTION_CONV_IN:
6658 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6660 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6663 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6664 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6666 *conv_arg_type = &conv_arg_class->this_arg;
6668 *conv_arg_type = &conv_arg_class->byval_arg;
6674 MonoMethodBuilder *mb = m->mb;
6677 case MARSHAL_ACTION_CONV_IN: {
6678 MonoType *local_type;
6680 guint8 ldc_op = CEE_LDC_I4_1;
6682 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6684 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6686 *conv_arg_type = local_type;
6687 conv_arg = mono_mb_add_local (mb, local_type);
6689 mono_mb_emit_ldarg (mb, argnum);
6691 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6692 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6693 mono_mb_emit_byte (mb, ldc_op);
6694 mono_mb_emit_stloc (mb, conv_arg);
6695 mono_mb_patch_branch (mb, label_false);
6700 case MARSHAL_ACTION_CONV_OUT:
6702 int label_false, label_end;
6706 mono_mb_emit_ldarg (mb, argnum);
6707 mono_mb_emit_ldloc (mb, conv_arg);
6709 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6710 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6712 label_end = mono_mb_emit_branch (mb, CEE_BR);
6713 mono_mb_patch_branch (mb, label_false);
6714 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6715 mono_mb_patch_branch (mb, label_end);
6717 mono_mb_emit_byte (mb, CEE_STIND_I1);
6721 case MARSHAL_ACTION_PUSH:
6723 mono_mb_emit_ldloc_addr (mb, conv_arg);
6725 mono_mb_emit_ldloc (mb, conv_arg);
6727 mono_mb_emit_ldarg (mb, argnum);
6730 case MARSHAL_ACTION_CONV_RESULT:
6731 /* maybe we need to make sure that it fits within 8 bits */
6732 mono_mb_emit_stloc (mb, 3);
6735 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6736 MonoClass* conv_arg_class = mono_defaults.int32_class;
6737 guint8 ldop = CEE_LDIND_I4;
6738 int label_null, label_false;
6740 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6741 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6744 *conv_arg_type = &conv_arg_class->this_arg;
6746 *conv_arg_type = &conv_arg_class->byval_arg;
6749 mono_mb_emit_ldarg (mb, argnum);
6753 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6754 mono_mb_emit_ldarg (mb, argnum);
6755 mono_mb_emit_byte (mb, ldop);
6759 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6760 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6761 mono_mb_emit_stloc (mb, conv_arg);
6762 mono_mb_patch_branch (mb, label_false);
6765 mono_mb_patch_branch (mb, label_null);
6769 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6770 guint8 stop = CEE_STIND_I4;
6771 guint8 ldc_op = CEE_LDC_I4_1;
6772 int label_null,label_false, label_end;;
6777 switch (spec->native) {
6778 case MONO_NATIVE_I1:
6779 case MONO_NATIVE_U1:
6780 stop = CEE_STIND_I1;
6782 case MONO_NATIVE_VARIANTBOOL:
6783 stop = CEE_STIND_I2;
6784 ldc_op = CEE_LDC_I4_M1;
6792 mono_mb_emit_ldarg (mb, argnum);
6793 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6795 mono_mb_emit_ldarg (mb, argnum);
6796 mono_mb_emit_ldloc (mb, conv_arg);
6798 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6799 mono_mb_emit_byte (mb, ldc_op);
6800 label_end = mono_mb_emit_branch (mb, CEE_BR);
6802 mono_mb_patch_branch (mb, label_false);
6803 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6804 mono_mb_patch_branch (mb, label_end);
6806 mono_mb_emit_byte (mb, stop);
6807 mono_mb_patch_branch (mb, label_null);
6812 g_assert_not_reached ();
6819 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6820 MonoMarshalSpec *spec, int conv_arg,
6821 MonoType **conv_arg_type, MarshalAction action)
6824 MonoMethodBuilder *mb = m->mb;
6827 case MARSHAL_ACTION_CONV_IN:
6828 /* MS seems to allow this in some cases, ie. bxc #158 */
6830 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6831 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6832 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6837 case MARSHAL_ACTION_PUSH:
6838 mono_mb_emit_ldarg (mb, argnum);
6841 case MARSHAL_ACTION_CONV_RESULT:
6842 /* no conversions necessary */
6843 mono_mb_emit_stloc (mb, 3);
6854 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6855 MonoMarshalSpec *spec, int conv_arg,
6856 MonoType **conv_arg_type, MarshalAction action)
6859 MonoMethodBuilder *mb = m->mb;
6862 case MARSHAL_ACTION_PUSH:
6863 /* fixme: dont know how to marshal that. We cant simply
6864 * convert it to a one byte UTF8 character, because an
6865 * unicode character may need more that one byte in UTF8 */
6866 mono_mb_emit_ldarg (mb, argnum);
6869 case MARSHAL_ACTION_CONV_RESULT:
6870 /* fixme: we need conversions here */
6871 mono_mb_emit_stloc (mb, 3);
6882 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
6883 MonoMarshalSpec *spec, int conv_arg,
6884 MonoType **conv_arg_type, MarshalAction action)
6887 MonoMethodBuilder *mb = m->mb;
6890 case MARSHAL_ACTION_PUSH:
6891 mono_mb_emit_ldarg (mb, argnum);
6894 case MARSHAL_ACTION_CONV_RESULT:
6895 /* no conversions necessary */
6896 mono_mb_emit_stloc (mb, 3);
6907 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
6908 MonoMarshalSpec *spec, int conv_arg,
6909 MonoType **conv_arg_type, MarshalAction action)
6911 /* Ensure that we have marshalling info for this param */
6912 mono_marshal_load_type_info (mono_class_from_mono_type (t));
6914 if (spec && spec->native == MONO_NATIVE_CUSTOM)
6915 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6917 if (spec && spec->native == MONO_NATIVE_ASANY)
6918 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6921 case MONO_TYPE_VALUETYPE:
6922 if (t->data.klass == mono_defaults.handleref_class)
6923 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6925 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6926 case MONO_TYPE_STRING:
6927 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6928 case MONO_TYPE_CLASS:
6929 case MONO_TYPE_OBJECT:
6931 if (spec && spec->native == MONO_NATIVE_STRUCT)
6932 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6934 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
6935 spec->native == MONO_NATIVE_IDISPATCH ||
6936 spec->native == MONO_NATIVE_INTERFACE))
6937 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6938 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
6939 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
6940 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
6941 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6944 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
6945 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
6946 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6948 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6949 case MONO_TYPE_ARRAY:
6950 case MONO_TYPE_SZARRAY:
6951 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6952 case MONO_TYPE_BOOLEAN:
6953 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6955 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6956 case MONO_TYPE_CHAR:
6957 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6970 case MONO_TYPE_FNPTR:
6971 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6972 case MONO_TYPE_GENERICINST:
6973 if (mono_type_generic_inst_is_valuetype (t))
6974 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6976 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6984 * mono_marshal_emit_native_wrapper:
6985 * @image: the image to use for looking up custom marshallers
6986 * @sig: The signature of the native function
6987 * @piinfo: Marshalling information
6988 * @mspecs: Marshalling information
6989 * @aot: whenever the created method will be compiled by the AOT compiler
6990 * @method: if non-NULL, the pinvoke method to call
6991 * @check_exceptions: Whenever to check for pending exceptions after the native call
6992 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
6994 * generates IL code for the pinvoke wrapper, the generated code calls @func.
6997 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)
6999 EmitMarshalContext m;
7000 MonoMethodSignature *csig;
7002 int i, argnum, *tmp_locals;
7003 int type, param_shift = 0;
7004 static MonoMethodSignature *get_last_error_sig = NULL;
7009 memset (&m, 0, sizeof (m));
7014 /* we copy the signature, so that we can set pinvoke to 0 */
7016 /* The function address is passed as the first argument */
7017 g_assert (!sig->hasthis);
7020 csig = signature_dup (mb->method->klass->image, sig);
7028 /* we allocate local for use with emit_struct_conv() */
7029 /* allocate local 0 (pointer) src_ptr */
7030 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7031 /* allocate local 1 (pointer) dst_ptr */
7032 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7033 /* allocate local 2 (boolean) delete_old */
7034 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7036 /* delete_old = FALSE */
7037 mono_mb_emit_icon (mb, 0);
7038 mono_mb_emit_stloc (mb, 2);
7040 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7041 /* allocate local 3 to store the return value */
7042 mono_mb_add_local (mb, sig->ret);
7046 /* local 4, the local to be used when calling the suspend funcs */
7047 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7050 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7051 /* Return type custom marshaling */
7053 * Since we can't determine the return type of the unmanaged function,
7054 * we assume it returns a pointer, and pass that pointer to
7055 * MarshalNativeToManaged.
7057 csig->ret = &mono_defaults.int_class->byval_arg;
7060 /* we first do all conversions */
7061 tmp_locals = alloca (sizeof (int) * sig->param_count);
7062 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7064 for (i = 0; i < sig->param_count; i ++) {
7065 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7068 /* push all arguments */
7071 mono_mb_emit_byte (mb, CEE_LDARG_0);
7073 for (i = 0; i < sig->param_count; i++) {
7074 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7078 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7079 mono_mb_emit_stloc (mb, coop_gc_var);
7082 /* call the native method */
7084 mono_mb_emit_byte (mb, CEE_LDARG_0);
7085 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7086 mono_mb_emit_byte (mb, CEE_LDIND_I);
7087 mono_mb_emit_calli (mb, csig);
7088 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7090 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7092 g_assert_not_reached ();
7097 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7098 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7099 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7100 mono_mb_emit_calli (mb, csig);
7102 mono_mb_emit_native_call (mb, csig, func);
7106 /* Set LastError if needed */
7107 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7108 if (!get_last_error_sig) {
7109 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7110 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7111 get_last_error_sig->pinvoke = 1;
7116 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7117 * clobber its value.
7119 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7120 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7122 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7127 mono_mb_emit_ldloc (mb, coop_gc_var);
7128 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7131 /* convert the result */
7132 if (!sig->ret->byref) {
7133 MonoMarshalSpec *spec = mspecs [0];
7134 type = sig->ret->type;
7136 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7137 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7142 case MONO_TYPE_VOID:
7144 case MONO_TYPE_VALUETYPE:
7145 klass = sig->ret->data.klass;
7146 if (klass->enumtype) {
7147 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7150 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7164 case MONO_TYPE_FNPTR:
7165 case MONO_TYPE_STRING:
7166 case MONO_TYPE_CLASS:
7167 case MONO_TYPE_OBJECT:
7168 case MONO_TYPE_BOOLEAN:
7169 case MONO_TYPE_ARRAY:
7170 case MONO_TYPE_SZARRAY:
7171 case MONO_TYPE_CHAR:
7173 case MONO_TYPE_GENERICINST:
7174 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7176 case MONO_TYPE_TYPEDBYREF:
7178 g_warning ("return type 0x%02x unknown", sig->ret->type);
7179 g_assert_not_reached ();
7183 mono_mb_emit_stloc (mb, 3);
7187 * Need to call this after converting the result since MONO_VTADDR needs
7188 * to be adjacent to the call instruction.
7190 if (check_exceptions)
7191 emit_thread_interrupt_checkpoint (mb);
7193 /* we need to convert byref arguments back and free string arrays */
7194 for (i = 0; i < sig->param_count; i++) {
7195 MonoType *t = sig->params [i];
7196 MonoMarshalSpec *spec = mspecs [i + 1];
7198 argnum = i + param_shift;
7200 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7201 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7206 case MONO_TYPE_STRING:
7207 case MONO_TYPE_VALUETYPE:
7208 case MONO_TYPE_CLASS:
7209 case MONO_TYPE_OBJECT:
7210 case MONO_TYPE_SZARRAY:
7211 case MONO_TYPE_BOOLEAN:
7212 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7219 if (!MONO_TYPE_IS_VOID(sig->ret))
7220 mono_mb_emit_ldloc (mb, 3);
7222 mono_mb_emit_byte (mb, CEE_RET);
7224 #endif /* DISABLE_JIT */
7227 * mono_marshal_get_native_wrapper:
7228 * @method: The MonoMethod to wrap.
7229 * @check_exceptions: Whenever to check for pending exceptions
7231 * generates IL code for the pinvoke wrapper (the generated method
7232 * calls the unmanaged code in piinfo->addr)
7233 * The wrapper info for the wrapper is a WrapperInfo structure.
7236 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7238 MonoMethodSignature *sig, *csig;
7239 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7240 MonoMethodBuilder *mb;
7241 MonoMarshalSpec **mspecs;
7244 gboolean pinvoke = FALSE;
7247 const char *exc_class = "MissingMethodException";
7248 const char *exc_arg = NULL;
7251 g_assert (method != NULL);
7252 g_assert (mono_method_signature (method)->pinvoke);
7255 if (check_exceptions)
7256 cache = get_cache (&method->klass->image->native_wrapper_aot_check_cache, mono_aligned_addr_hash, NULL);
7258 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7260 if (check_exceptions)
7261 cache = get_cache (&method->klass->image->native_wrapper_check_cache, mono_aligned_addr_hash, NULL);
7263 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7265 if ((res = mono_marshal_find_in_cache (cache, method)))
7268 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7269 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7273 return mono_cominterop_get_native_wrapper (method);
7275 g_assert_not_reached ();
7279 sig = mono_method_signature (method);
7281 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7282 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7285 if (!piinfo->addr) {
7287 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7288 exc_arg = "Method contains unsupported native code";
7290 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7292 piinfo->addr = mono_lookup_internal_call (method);
7296 /* hack - redirect certain string constructors to CreateString */
7297 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7298 g_assert (!pinvoke);
7299 g_assert (method->string_ctor);
7300 g_assert (sig->hasthis);
7302 /* CreateString returns a value */
7303 csig = signature_dup (method->klass->image, sig);
7304 csig->ret = &mono_defaults.string_class->byval_arg;
7308 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7309 if (!strcmp ("CreateString", res->name) &&
7310 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7313 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7314 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7316 /* create a wrapper to preserve .ctor in stack trace */
7317 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7320 mono_mb_emit_byte (mb, CEE_LDARG_0);
7321 for (i = 1; i <= csig->param_count; i++)
7322 mono_mb_emit_ldarg (mb, i);
7323 mono_mb_emit_managed_call (mb, res, NULL);
7324 mono_mb_emit_byte (mb, CEE_RET);
7327 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7328 info->d.string_ctor.method = method;
7330 /* use native_wrapper_cache because internal calls are looked up there */
7331 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7332 csig->param_count + 1, info, NULL);
7339 /* exception will be thrown */
7340 piinfo->addr = NULL;
7341 g_warning ("cannot find CreateString for .ctor");
7344 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7346 mb->method->save_lmf = 1;
7349 * In AOT mode and embedding scenarios, it is possible that the icall is not
7350 * registered in the runtime doing the AOT compilation.
7352 if (!piinfo->addr && !aot) {
7354 mono_mb_emit_exception (mb, exc_class, exc_arg);
7356 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7357 info->d.managed_to_native.method = method;
7359 csig = signature_dup (method->klass->image, sig);
7361 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7362 csig->param_count + 16, info, NULL);
7368 /* internal calls: we simply push all arguments and call the method (no conversions) */
7369 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7371 csig = signature_dup_add_this (method->klass->image, sig, method->klass);
7373 csig = signature_dup (method->klass->image, sig);
7375 /* hack - string constructors returns a value */
7376 if (method->string_ctor)
7377 csig->ret = &mono_defaults.string_class->byval_arg;
7384 * Add a null check since public icalls can be called with 'call' which
7385 * does no such check.
7387 mono_mb_emit_byte (mb, CEE_LDARG_0);
7388 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7389 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7390 mono_mb_patch_branch (mb, pos);
7392 mono_mb_emit_byte (mb, CEE_LDARG_0);
7395 for (i = 0; i < sig->param_count; i++)
7396 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7399 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7400 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7401 mono_mb_emit_calli (mb, csig);
7403 g_assert (piinfo->addr);
7404 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7406 if (check_exceptions)
7407 emit_thread_interrupt_checkpoint (mb);
7408 mono_mb_emit_byte (mb, CEE_RET);
7410 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7411 info->d.managed_to_native.method = method;
7413 csig = signature_dup (method->klass->image, csig);
7415 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7424 g_assert (piinfo->addr);
7427 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7428 mono_method_get_marshal_info (method, mspecs);
7430 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7432 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7433 info->d.managed_to_native.method = method;
7435 csig = signature_dup (method->klass->image, sig);
7437 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7442 for (i = sig->param_count; i >= 0; i--)
7444 mono_metadata_free_marshal_spec (mspecs [i]);
7448 /* mono_method_print_code (res); */
7454 * mono_marshal_get_native_func_wrapper:
7455 * @image: The image to use for memory allocation and for looking up custom marshallers.
7456 * @sig: The signature of the function
7457 * @func: The native function to wrap
7459 * Returns a wrapper method around native functions, similar to the pinvoke
7463 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7464 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7466 MonoMethodSignature *csig;
7468 SignaturePointerPair key, *new_key;
7469 MonoMethodBuilder *mb;
7478 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7479 if ((res = mono_marshal_find_in_cache (cache, &key)))
7482 name = g_strdup_printf ("wrapper_native_%p", func);
7483 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7484 mb->method->save_lmf = 1;
7487 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7490 csig = signature_dup (image, sig);
7493 new_key = g_new (SignaturePointerPair,1);
7494 new_key->sig = csig;
7495 new_key->pointer = func;
7497 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7503 mono_marshal_set_wrapper_info (res, NULL);
7509 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7513 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7515 MonoMethodSignature *sig, *csig;
7516 MonoMethodBuilder *mb;
7521 MonoMethodPInvoke mpiinfo;
7522 MonoMethodPInvoke *piinfo = &mpiinfo;
7523 MonoMarshalSpec **mspecs;
7524 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7525 MonoImage *image = invoke->klass->image;
7528 // FIXME: include UnmanagedFunctionPointerAttribute info
7531 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7533 cache = get_cache (&image->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7534 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7537 memset (&mpiinfo, 0, sizeof (mpiinfo));
7538 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7540 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7541 mono_method_get_marshal_info (invoke, mspecs);
7542 /* Freed below so don't alloc from mempool */
7543 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7546 name = g_strdup_printf ("wrapper_aot_native");
7547 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7548 mb->method->save_lmf = 1;
7551 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7554 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7555 info->d.managed_to_native.method = invoke;
7557 g_assert (!sig->hasthis);
7558 csig = signature_dup_add_this (image, sig, mono_defaults.int_class);
7560 res = mono_mb_create_and_cache_full (cache, invoke,
7561 mb, csig, csig->param_count + 16,
7565 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7567 mono_metadata_free_marshal_spec (mspecs [i]);
7575 * mono_marshal_emit_managed_wrapper:
7577 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7578 * the delegate which wraps the managed method to be called. For closed delegates,
7579 * it could have fewer parameters than the method it wraps.
7580 * THIS_LOC is the memory location where the target of the delegate is stored.
7583 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7586 MonoMethodSignature *sig, *csig;
7592 /* we first do all conversions */
7593 for (i = 0; i < sig->param_count; i ++) {
7594 MonoType *t = sig->params [i];
7597 case MONO_TYPE_OBJECT:
7598 case MONO_TYPE_CLASS:
7599 case MONO_TYPE_VALUETYPE:
7600 case MONO_TYPE_ARRAY:
7601 case MONO_TYPE_SZARRAY:
7602 case MONO_TYPE_STRING:
7603 case MONO_TYPE_BOOLEAN:
7604 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7608 if (!sig->ret->byref) {
7609 switch (sig->ret->type) {
7610 case MONO_TYPE_STRING:
7611 csig->ret = &mono_defaults.int_class->byval_arg;
7618 MonoMethodSignature *sig, *csig;
7620 gboolean closed = FALSE;
7628 /* allocate local 0 (pointer) src_ptr */
7629 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7630 /* allocate local 1 (pointer) dst_ptr */
7631 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7632 /* allocate local 2 (boolean) delete_old */
7633 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7635 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7636 /* Closed delegate */
7637 g_assert (sig->param_count == invoke_sig->param_count + 1);
7639 /* Use a new signature without the first argument */
7640 sig = mono_metadata_signature_dup (sig);
7641 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7642 sig->param_count --;
7645 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7646 /* allocate local 3 to store the return value */
7647 mono_mb_add_local (mb, sig->ret);
7650 /* local 4, the local to be used when calling the reset_blocking funcs */
7651 /* tons of code hardcode 3 to be the return var */
7652 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7655 mono_mb_emit_icon (mb, 0);
7656 mono_mb_emit_stloc (mb, 2);
7659 * Might need to attach the thread to the JIT or change the
7660 * domain for the callback.
7662 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7663 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7666 /* XXX can we merge reset_blocking_start with JIT_ATTACH above and save one call? */
7667 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
7668 mono_mb_emit_stloc (mb, coop_gc_var);
7671 /* we first do all conversions */
7672 tmp_locals = alloca (sizeof (int) * sig->param_count);
7673 for (i = 0; i < sig->param_count; i ++) {
7674 MonoType *t = sig->params [i];
7677 case MONO_TYPE_OBJECT:
7678 case MONO_TYPE_CLASS:
7679 case MONO_TYPE_VALUETYPE:
7680 case MONO_TYPE_ARRAY:
7681 case MONO_TYPE_SZARRAY:
7682 case MONO_TYPE_STRING:
7683 case MONO_TYPE_BOOLEAN:
7684 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7693 emit_thread_interrupt_checkpoint (mb);
7696 if (target_handle) {
7697 mono_mb_emit_icon (mb, (gint32)target_handle);
7698 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7701 g_assert_not_reached ();
7703 } else if (closed) {
7704 mono_mb_emit_icon (mb, (gint32)target_handle);
7705 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7708 for (i = 0; i < sig->param_count; i++) {
7709 MonoType *t = sig->params [i];
7711 if (tmp_locals [i]) {
7713 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7715 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7718 mono_mb_emit_ldarg (mb, i);
7721 mono_mb_emit_managed_call (mb, method, NULL);
7723 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7724 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7725 } else if (!sig->ret->byref) {
7726 switch (sig->ret->type) {
7727 case MONO_TYPE_VOID:
7729 case MONO_TYPE_BOOLEAN:
7732 case MONO_TYPE_CHAR:
7744 case MONO_TYPE_OBJECT:
7745 mono_mb_emit_stloc (mb, 3);
7747 case MONO_TYPE_STRING:
7748 csig->ret = &mono_defaults.int_class->byval_arg;
7749 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7751 case MONO_TYPE_VALUETYPE:
7752 case MONO_TYPE_CLASS:
7753 case MONO_TYPE_SZARRAY:
7754 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7757 g_warning ("return type 0x%02x unknown", sig->ret->type);
7758 g_assert_not_reached ();
7761 mono_mb_emit_stloc (mb, 3);
7764 /* Convert byref arguments back */
7765 for (i = 0; i < sig->param_count; i ++) {
7766 MonoType *t = sig->params [i];
7767 MonoMarshalSpec *spec = mspecs [i + 1];
7769 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7770 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7772 else if (t->byref) {
7774 case MONO_TYPE_CLASS:
7775 case MONO_TYPE_VALUETYPE:
7776 case MONO_TYPE_OBJECT:
7777 case MONO_TYPE_STRING:
7778 case MONO_TYPE_BOOLEAN:
7779 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7785 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7786 /* The [Out] information is encoded in the delegate signature */
7788 case MONO_TYPE_SZARRAY:
7789 case MONO_TYPE_CLASS:
7790 case MONO_TYPE_VALUETYPE:
7791 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7794 g_assert_not_reached ();
7800 /* XXX merge reset_blocking_end with detach */
7801 mono_mb_emit_ldloc (mb, coop_gc_var);
7802 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
7805 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7806 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7808 if (m->retobj_var) {
7809 mono_mb_emit_ldloc (mb, m->retobj_var);
7810 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7811 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7814 if (!MONO_TYPE_IS_VOID(sig->ret))
7815 mono_mb_emit_ldloc (mb, 3);
7816 mono_mb_emit_byte (mb, CEE_RET);
7825 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7827 MonoMethodSignature *sig;
7832 * Under windows, delegates passed to native code must use the STDCALL
7833 * calling convention.
7835 csig->call_convention = MONO_CALL_STDCALL;
7838 sig = mono_method_signature (method);
7840 /* Change default calling convention if needed */
7841 /* Why is this a modopt ? */
7842 if (sig->ret && sig->ret->num_mods) {
7843 for (i = 0; i < sig->ret->num_mods; ++i) {
7845 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7846 g_assert (mono_error_ok (&error));
7847 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7848 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7849 csig->call_convention = MONO_CALL_C;
7850 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7851 csig->call_convention = MONO_CALL_STDCALL;
7852 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7853 csig->call_convention = MONO_CALL_FASTCALL;
7854 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7855 csig->call_convention = MONO_CALL_THISCALL;
7862 * generates IL code to call managed methods from unmanaged code
7863 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7866 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
7868 static MonoClass *UnmanagedFunctionPointerAttribute;
7869 MonoMethodSignature *sig, *csig, *invoke_sig;
7870 MonoMethodBuilder *mb;
7871 MonoMethod *res, *invoke;
7872 MonoMarshalSpec **mspecs;
7873 MonoMethodPInvoke piinfo;
7876 EmitMarshalContext m;
7878 g_assert (method != NULL);
7879 g_assert (!mono_method_signature (method)->pinvoke);
7882 * FIXME: Should cache the method+delegate type pair, since the same method
7883 * could be called with different delegates, thus different marshalling
7886 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
7887 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
7890 invoke = mono_get_delegate_invoke (delegate_klass);
7891 invoke_sig = mono_method_signature (invoke);
7893 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7894 mono_method_get_marshal_info (invoke, mspecs);
7896 sig = mono_method_signature (method);
7898 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7900 /*the target gchandle must be the first entry after size and the wrapper itself.*/
7901 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
7903 /* we copy the signature, so that we can modify it */
7905 /* Need to free this later */
7906 csig = mono_metadata_signature_dup (invoke_sig);
7908 csig = signature_dup (method->klass->image, invoke_sig);
7912 memset (&m, 0, sizeof (m));
7918 m.image = method->klass->image;
7920 mono_marshal_set_callconv_from_modopt (invoke, csig);
7922 /* Handle the UnmanagedFunctionPointerAttribute */
7923 if (!UnmanagedFunctionPointerAttribute)
7924 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
7926 /* The attribute is only available in Net 2.0 */
7927 if (UnmanagedFunctionPointerAttribute) {
7928 MonoCustomAttrInfo *cinfo;
7929 MonoCustomAttrEntry *attr;
7932 * The pinvoke attributes are stored in a real custom attribute. Obtain the
7933 * contents of the attribute without constructing it, as that might not be
7934 * possible when running in cross-compiling mode.
7936 cinfo = mono_custom_attrs_from_class (delegate_klass);
7939 for (i = 0; i < cinfo->num_attrs; ++i) {
7940 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
7941 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
7942 attr = &cinfo->attrs [i];
7948 MonoArray *typed_args, *named_args;
7949 CattrNamedArg *arginfo;
7953 MonoBoolean set_last_error = 0;
7956 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
7957 g_assert (mono_error_ok (&error));
7958 g_assert (mono_array_length (typed_args) == 1);
7961 o = mono_array_get (typed_args, MonoObject*, 0);
7962 call_conv = *(gint32*)mono_object_unbox (o);
7965 for (i = 0; i < mono_array_length (named_args); ++i) {
7966 CattrNamedArg *narg = &arginfo [i];
7968 o = mono_array_get (named_args, MonoObject*, i);
7970 g_assert (narg->field);
7971 if (!strcmp (narg->field->name, "CharSet")) {
7972 charset = *(gint32*)mono_object_unbox (o);
7973 } else if (!strcmp (narg->field->name, "SetLastError")) {
7974 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
7975 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
7976 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
7977 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
7978 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
7980 g_assert_not_reached ();
7986 memset (&piinfo, 0, sizeof (piinfo));
7988 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
7990 csig->call_convention = call_conv - 1;
7993 if (cinfo && !cinfo->cached)
7994 mono_custom_attrs_free (cinfo);
7997 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
7999 if (!target_handle) {
8002 // FIXME: Associate it with the method+delegate_klass pair
8003 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8004 info->d.native_to_managed.method = method;
8005 info->d.native_to_managed.klass = delegate_klass;
8007 res = mono_mb_create_and_cache_full (cache, method,
8008 mb, csig, sig->param_count + 16,
8014 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8018 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8020 mono_metadata_free_marshal_spec (mspecs [i]);
8023 /* mono_method_print_code (res); */
8029 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8032 MonoMethodSignature *sig;
8033 MonoMethodBuilder *mb;
8038 method = mono_get_method (image, token, NULL);
8041 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8042 MonoMethodSignature *csig;
8043 MonoMarshalSpec **mspecs;
8044 EmitMarshalContext m;
8046 sig = mono_method_signature (method);
8047 g_assert (!sig->hasthis);
8049 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8050 mono_method_get_marshal_info (method, mspecs);
8052 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8053 csig = signature_dup (image, sig);
8057 memset (&m, 0, sizeof (m));
8065 mono_marshal_set_callconv_from_modopt (method, csig);
8067 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8069 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8074 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8077 for (i = sig->param_count; i >= 0; i--)
8079 mono_metadata_free_marshal_spec (mspecs [i]);
8082 return mono_compile_method (method);
8085 sig = mono_method_signature (method);
8086 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8088 param_count = sig->param_count + sig->hasthis;
8090 for (i = 0; i < param_count; i++)
8091 mono_mb_emit_ldarg (mb, i);
8093 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8094 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8096 mono_mb_emit_op (mb, CEE_CALL, method);
8097 mono_mb_emit_byte (mb, CEE_RET);
8102 method = mono_mb_create (mb, sig, param_count, NULL);
8105 return mono_compile_method (method);
8109 * This does the equivalent of mono_object_castclass_with_cache.
8110 * The wrapper info for the wrapper is a WrapperInfo structure.
8113 mono_marshal_get_castclass_with_cache (void)
8115 static MonoMethod *cached;
8117 MonoMethodBuilder *mb;
8118 MonoMethodSignature *sig;
8119 int return_null_pos, cache_miss_pos, invalid_cast_pos;
8125 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8126 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8127 sig->params [0] = &mono_defaults.object_class->byval_arg;
8128 sig->params [1] = &mono_defaults.int_class->byval_arg;
8129 sig->params [2] = &mono_defaults.int_class->byval_arg;
8130 sig->ret = &mono_defaults.object_class->byval_arg;
8134 /* allocate local 0 (pointer) obj_vtable */
8135 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8138 mono_mb_emit_ldarg (mb, 0);
8139 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8141 /*obj_vtable = obj->vtable;*/
8142 mono_mb_emit_ldarg (mb, 0);
8143 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8144 mono_mb_emit_byte (mb, CEE_LDIND_I);
8145 mono_mb_emit_stloc (mb, 0);
8148 mono_mb_emit_ldarg (mb, 2);
8149 mono_mb_emit_byte (mb, CEE_LDIND_I);
8150 mono_mb_emit_ldloc (mb, 0);
8152 /*if (*cache == obj_vtable)*/
8153 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8156 mono_mb_emit_ldarg (mb, 0);
8157 mono_mb_emit_byte (mb, CEE_RET);
8159 mono_mb_patch_branch (mb, cache_miss_pos);
8160 /*if (mono_object_isinst (obj, klass)) */
8161 mono_mb_emit_ldarg (mb, 0);
8162 mono_mb_emit_ldarg (mb, 1);
8163 mono_mb_emit_icall (mb, mono_object_isinst);
8164 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8166 /**cache = obj_vtable;*/
8167 mono_mb_emit_ldarg (mb, 2);
8168 mono_mb_emit_ldloc (mb, 0);
8169 mono_mb_emit_byte (mb, CEE_STIND_I);
8172 mono_mb_emit_ldarg (mb, 0);
8173 mono_mb_emit_byte (mb, CEE_RET);
8176 mono_mb_patch_branch (mb, invalid_cast_pos);
8177 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8180 mono_mb_patch_branch (mb, return_null_pos);
8181 mono_mb_emit_byte (mb, CEE_LDNULL);
8182 mono_mb_emit_byte (mb, CEE_RET);
8183 #endif /* DISABLE_JIT */
8185 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8186 res = mono_mb_create (mb, sig, 8, info);
8189 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8190 mono_free_method (res);
8191 mono_metadata_free_method_signature (sig);
8199 * This does the equivalent of mono_object_isinst_with_cache.
8200 * The wrapper info for the wrapper is a WrapperInfo structure.
8203 mono_marshal_get_isinst_with_cache (void)
8205 static MonoMethod *cached;
8207 MonoMethodBuilder *mb;
8208 MonoMethodSignature *sig;
8209 int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos;
8215 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8216 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8217 sig->params [0] = &mono_defaults.object_class->byval_arg;
8218 sig->params [1] = &mono_defaults.int_class->byval_arg;
8219 sig->params [2] = &mono_defaults.int_class->byval_arg;
8220 sig->ret = &mono_defaults.object_class->byval_arg;
8224 /* allocate local 0 (pointer) obj_vtable */
8225 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8226 /* allocate local 1 (pointer) cached_vtable */
8227 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8230 mono_mb_emit_ldarg (mb, 0);
8231 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8233 /*obj_vtable = obj->vtable;*/
8234 mono_mb_emit_ldarg (mb, 0);
8235 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8236 mono_mb_emit_byte (mb, CEE_LDIND_I);
8237 mono_mb_emit_stloc (mb, 0);
8239 /* cached_vtable = *cache*/
8240 mono_mb_emit_ldarg (mb, 2);
8241 mono_mb_emit_byte (mb, CEE_LDIND_I);
8242 mono_mb_emit_stloc (mb, 1);
8244 mono_mb_emit_ldloc (mb, 1);
8245 mono_mb_emit_byte (mb, CEE_LDC_I4);
8246 mono_mb_emit_i4 (mb, ~0x1);
8247 mono_mb_emit_byte (mb, CEE_CONV_I);
8248 mono_mb_emit_byte (mb, CEE_AND);
8249 mono_mb_emit_ldloc (mb, 0);
8250 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8251 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8253 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8254 mono_mb_emit_ldloc (mb, 1);
8255 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8256 mono_mb_emit_byte (mb, CEE_CONV_U);
8257 mono_mb_emit_byte (mb, CEE_AND);
8258 negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8261 mono_mb_emit_ldarg (mb, 0);
8262 cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8265 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8266 mono_mb_emit_byte (mb, CEE_LDNULL);
8268 mono_mb_patch_branch (mb, cache_hit_pos);
8269 mono_mb_emit_byte (mb, CEE_RET);
8271 mono_mb_patch_branch (mb, cache_miss_pos);
8272 /*if (mono_object_isinst (obj, klass)) */
8273 mono_mb_emit_ldarg (mb, 0);
8274 mono_mb_emit_ldarg (mb, 1);
8275 mono_mb_emit_icall (mb, mono_object_isinst);
8276 not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8278 /**cache = obj_vtable;*/
8279 mono_mb_emit_ldarg (mb, 2);
8280 mono_mb_emit_ldloc (mb, 0);
8281 mono_mb_emit_byte (mb, CEE_STIND_I);
8284 mono_mb_emit_ldarg (mb, 0);
8285 mono_mb_emit_byte (mb, CEE_RET);
8288 mono_mb_patch_branch (mb, not_an_instance_pos);
8289 /* *cache = (gpointer)(obj_vtable | 0x1);*/
8290 mono_mb_emit_ldarg (mb, 2);
8291 /*obj_vtable | 0x1*/
8292 mono_mb_emit_ldloc (mb, 0);
8293 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8294 mono_mb_emit_byte (mb, CEE_CONV_U);
8295 mono_mb_emit_byte (mb, CEE_OR);
8298 mono_mb_emit_byte (mb, CEE_STIND_I);
8301 mono_mb_patch_branch (mb, return_null_pos);
8302 mono_mb_emit_byte (mb, CEE_LDNULL);
8303 mono_mb_emit_byte (mb, CEE_RET);
8306 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8307 res = mono_mb_create (mb, sig, 8, info);
8310 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8311 mono_free_method (res);
8312 mono_metadata_free_method_signature (sig);
8320 * mono_marshal_get_isinst:
8321 * @klass: the type of the field
8323 * This method generates a function which can be used to check if an object is
8324 * an instance of the given type, icluding the case where the object is a proxy.
8325 * The generated function has the following signature:
8326 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8329 mono_marshal_get_isinst (MonoClass *klass)
8331 static MonoMethodSignature *isint_sig = NULL;
8335 int pos_was_ok, pos_end;
8336 #ifndef DISABLE_REMOTING
8337 int pos_end2, pos_failed;
8340 MonoMethodBuilder *mb;
8342 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8343 if ((res = mono_marshal_find_in_cache (cache, klass)))
8347 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8348 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8349 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8350 isint_sig->pinvoke = 0;
8353 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8354 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8357 mb->method->save_lmf = 1;
8360 /* check if the object is a proxy that needs special cast */
8361 mono_mb_emit_ldarg (mb, 0);
8362 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8363 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8365 /* The result of MONO_CISINST can be:
8366 0) the type check succeeded
8367 1) the type check did not succeed
8368 2) a CanCastTo call is needed */
8369 #ifndef DISABLE_REMOTING
8370 mono_mb_emit_byte (mb, CEE_DUP);
8371 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8373 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8374 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8376 /* get the real proxy from the transparent proxy*/
8378 mono_mb_emit_ldarg (mb, 0);
8379 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8380 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8384 mono_mb_patch_branch (mb, pos_failed);
8385 mono_mb_emit_byte (mb, CEE_LDNULL);
8386 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8390 mono_mb_patch_branch (mb, pos_was_ok);
8391 mono_mb_emit_byte (mb, CEE_POP);
8392 mono_mb_emit_ldarg (mb, 0);
8396 mono_mb_patch_branch (mb, pos_end);
8397 mono_mb_patch_branch (mb, pos_end2);
8398 mono_mb_emit_byte (mb, CEE_RET);
8400 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8404 mono_mb_emit_byte (mb, CEE_LDNULL);
8405 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8409 mono_mb_patch_branch (mb, pos_was_ok);
8410 mono_mb_emit_ldarg (mb, 0);
8414 mono_mb_patch_branch (mb, pos_end);
8415 mono_mb_emit_byte (mb, CEE_RET);
8416 #endif /* DISABLE_REMOTING */
8417 #endif /* DISABLE_JIT */
8419 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8420 info->d.proxy.klass = klass;
8421 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8428 * mono_marshal_get_castclass:
8429 * @klass: the type of the field
8431 * This method generates a function which can be used to cast an object to
8432 * an instance of the given type, icluding the case where the object is a proxy.
8433 * The generated function has the following signature:
8434 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8435 * The wrapper info for the wrapper is a WrapperInfo structure.
8438 mono_marshal_get_castclass (MonoClass *klass)
8440 static MonoMethodSignature *castclass_sig = NULL;
8443 #ifndef DISABLE_REMOTING
8444 int pos_was_ok, pos_was_ok2;
8447 MonoMethodBuilder *mb;
8450 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8451 if ((res = mono_marshal_find_in_cache (cache, klass)))
8454 if (!castclass_sig) {
8455 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8456 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8457 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8458 castclass_sig->pinvoke = 0;
8461 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8462 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8465 mb->method->save_lmf = 1;
8468 /* check if the object is a proxy that needs special cast */
8469 mono_mb_emit_ldarg (mb, 0);
8470 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8471 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8473 /* The result of MONO_CCASTCLASS can be:
8474 0) the cast is valid
8475 1) cast of unknown proxy type
8476 or an exception if the cast is is invalid
8478 #ifndef DISABLE_REMOTING
8479 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8481 /* get the real proxy from the transparent proxy*/
8483 mono_mb_emit_ldarg (mb, 0);
8484 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8485 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8488 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8491 mono_mb_patch_branch (mb, pos_was_ok);
8492 mono_mb_patch_branch (mb, pos_was_ok2);
8494 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8495 mono_mb_emit_byte (mb, CEE_POP);
8496 #endif /* DISABLE_REMOTING */
8498 mono_mb_emit_ldarg (mb, 0);
8501 mono_mb_emit_byte (mb, CEE_RET);
8502 #endif /* DISABLE_JIT */
8504 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8506 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8514 * mono_marshal_get_struct_to_ptr:
8517 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8518 * The wrapper info for the wrapper is a WrapperInfo structure.
8521 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8523 MonoMethodBuilder *mb;
8524 static MonoMethod *stoptr = NULL;
8528 g_assert (klass != NULL);
8530 mono_marshal_load_type_info (klass);
8532 if (klass->marshal_info->str_to_ptr)
8533 return klass->marshal_info->str_to_ptr;
8536 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8539 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8542 if (klass->blittable) {
8543 mono_mb_emit_byte (mb, CEE_LDARG_1);
8544 mono_mb_emit_byte (mb, CEE_LDARG_0);
8545 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8546 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8547 mono_mb_emit_byte (mb, CEE_PREFIX1);
8548 mono_mb_emit_byte (mb, CEE_CPBLK);
8551 /* allocate local 0 (pointer) src_ptr */
8552 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8553 /* allocate local 1 (pointer) dst_ptr */
8554 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8555 /* allocate local 2 (boolean) delete_old */
8556 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8557 mono_mb_emit_byte (mb, CEE_LDARG_2);
8558 mono_mb_emit_stloc (mb, 2);
8560 /* initialize src_ptr to point to the start of object data */
8561 mono_mb_emit_byte (mb, CEE_LDARG_0);
8562 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8563 mono_mb_emit_stloc (mb, 0);
8565 /* initialize dst_ptr */
8566 mono_mb_emit_byte (mb, CEE_LDARG_1);
8567 mono_mb_emit_stloc (mb, 1);
8569 emit_struct_conv (mb, klass, FALSE);
8572 mono_mb_emit_byte (mb, CEE_RET);
8574 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8575 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8578 klass->marshal_info->str_to_ptr = res;
8583 * mono_marshal_get_ptr_to_struct:
8586 * generates IL code for PtrToStructure (IntPtr src, object structure)
8587 * The wrapper info for the wrapper is a WrapperInfo structure.
8590 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8592 MonoMethodBuilder *mb;
8593 static MonoMethodSignature *ptostr = NULL;
8597 g_assert (klass != NULL);
8599 mono_marshal_load_type_info (klass);
8601 if (klass->marshal_info->ptr_to_str)
8602 return klass->marshal_info->ptr_to_str;
8605 MonoMethodSignature *sig;
8607 /* Create the signature corresponding to
8608 static void PtrToStructure (IntPtr ptr, object structure);
8609 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8610 sig = mono_create_icall_signature ("void ptr object");
8611 sig = signature_dup (mono_defaults.corlib, sig);
8613 mono_memory_barrier ();
8617 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8620 if (klass->blittable) {
8621 mono_mb_emit_byte (mb, CEE_LDARG_1);
8622 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8623 mono_mb_emit_byte (mb, CEE_LDARG_0);
8624 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8625 mono_mb_emit_byte (mb, CEE_PREFIX1);
8626 mono_mb_emit_byte (mb, CEE_CPBLK);
8629 /* allocate local 0 (pointer) src_ptr */
8630 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8631 /* allocate local 1 (pointer) dst_ptr */
8632 mono_mb_add_local (mb, &klass->this_arg);
8634 /* initialize src_ptr to point to the start of object data */
8635 mono_mb_emit_byte (mb, CEE_LDARG_0);
8636 mono_mb_emit_stloc (mb, 0);
8638 /* initialize dst_ptr */
8639 mono_mb_emit_byte (mb, CEE_LDARG_1);
8640 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8641 mono_mb_emit_stloc (mb, 1);
8643 emit_struct_conv (mb, klass, TRUE);
8646 mono_mb_emit_byte (mb, CEE_RET);
8648 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8649 res = mono_mb_create (mb, ptostr, 0, info);
8652 klass->marshal_info->ptr_to_str = res;
8657 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8658 * This is used to avoid infinite recursion since it is hard to determine where to
8659 * replace a method with its synchronized wrapper, and where not.
8660 * The runtime should execute METHOD instead of the wrapper.
8661 * The wrapper info for the wrapper is a WrapperInfo structure.
8664 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8666 MonoMethodBuilder *mb;
8668 MonoMethodSignature *sig;
8670 MonoGenericContext *ctx = NULL;
8671 MonoGenericContainer *container = NULL;
8673 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8674 ctx = &((MonoMethodInflated*)method)->context;
8675 method = ((MonoMethodInflated*)method)->declaring;
8676 container = mono_method_get_generic_container (method);
8678 container = method->klass->generic_container;
8679 g_assert (container);
8682 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8684 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8685 mono_mb_emit_byte (mb, CEE_RET);
8687 sig = signature_dup (method->klass->image, mono_method_signature (method));
8689 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8690 info->d.synchronized_inner.method = method;
8691 res = mono_mb_create (mb, sig, 0, info);
8695 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8696 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8702 * generates IL code for the synchronized wrapper: the generated method
8703 * calls METHOD while locking 'this' or the parent type.
8706 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8708 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8709 MonoMethodSignature *sig;
8710 MonoExceptionClause *clause;
8711 MonoMethodBuilder *mb;
8714 int i, pos, this_local, ret_local = 0;
8715 MonoGenericContext *ctx = NULL;
8716 MonoMethod *orig_method = NULL;
8717 MonoGenericContainer *container = NULL;
8721 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8724 /* FIXME: Support generic methods too */
8725 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8726 orig_method = method;
8727 ctx = &((MonoMethodInflated*)method)->context;
8728 method = ((MonoMethodInflated*)method)->declaring;
8729 container = mono_method_get_generic_container (method);
8731 container = method->klass->generic_container;
8732 g_assert (container);
8739 cache = get_cache (&method->klass->image->synchronized_generic_cache, mono_aligned_addr_hash, NULL);
8740 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8744 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8745 if ((res = mono_marshal_find_in_cache (cache, method)))
8749 sig = signature_dup (method->klass->image, mono_method_signature (method));
8752 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8756 if (!MONO_TYPE_IS_VOID (sig->ret))
8757 ret_local = mono_mb_add_local (mb, sig->ret);
8760 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8761 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8763 /* This will throw the type load exception when the wrapper is compiled */
8764 mono_mb_emit_byte (mb, CEE_LDNULL);
8765 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8766 mono_mb_emit_byte (mb, CEE_POP);
8768 if (!MONO_TYPE_IS_VOID (sig->ret))
8769 mono_mb_emit_ldloc (mb, ret_local);
8770 mono_mb_emit_byte (mb, CEE_RET);
8773 res = mono_mb_create_and_cache (cache, method,
8774 mb, sig, sig->param_count + 16);
8782 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8784 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8785 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8788 mono_marshal_lock ();
8790 if (!enter_method) {
8791 MonoMethodDesc *desc;
8793 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8794 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8795 g_assert (enter_method);
8796 mono_method_desc_free (desc);
8798 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8799 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8800 g_assert (exit_method);
8801 mono_method_desc_free (desc);
8803 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8804 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8805 g_assert (gettypefromhandle_method);
8806 mono_method_desc_free (desc);
8809 mono_marshal_unlock ();
8812 /* Push this or the type object */
8813 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8814 /* We have special handling for this in the JIT */
8815 int index = mono_mb_add_data (mb, method->klass);
8816 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8817 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8818 mono_mb_emit_i4 (mb, index);
8820 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8823 mono_mb_emit_ldarg (mb, 0);
8824 mono_mb_emit_stloc (mb, this_local);
8826 /* Call Monitor::Enter() */
8827 mono_mb_emit_ldloc (mb, this_local);
8828 mono_mb_emit_managed_call (mb, enter_method, NULL);
8830 clause->try_offset = mono_mb_get_label (mb);
8832 /* Call the method */
8834 mono_mb_emit_ldarg (mb, 0);
8835 for (i = 0; i < sig->param_count; i++)
8836 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8840 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
8841 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8843 mono_mb_emit_managed_call (mb, method, NULL);
8846 if (!MONO_TYPE_IS_VOID (sig->ret))
8847 mono_mb_emit_stloc (mb, ret_local);
8849 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8851 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8852 clause->handler_offset = mono_mb_get_label (mb);
8854 /* Call Monitor::Exit() */
8855 mono_mb_emit_ldloc (mb, this_local);
8856 mono_mb_emit_managed_call (mb, exit_method, NULL);
8857 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8859 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8861 mono_mb_patch_branch (mb, pos);
8862 if (!MONO_TYPE_IS_VOID (sig->ret))
8863 mono_mb_emit_ldloc (mb, ret_local);
8864 mono_mb_emit_byte (mb, CEE_RET);
8866 mono_mb_set_clauses (mb, 1, clause);
8871 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
8872 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
8874 res = mono_mb_create_and_cache (cache, method,
8875 mb, sig, sig->param_count + 16);
8884 * the returned method calls 'method' unboxing the this argument
8887 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8889 MonoMethodSignature *sig = mono_method_signature (method);
8891 MonoMethodBuilder *mb;
8895 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8896 if ((res = mono_marshal_find_in_cache (cache, method)))
8899 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8901 g_assert (sig->hasthis);
8904 mono_mb_emit_ldarg (mb, 0);
8905 mono_mb_emit_icon (mb, sizeof (MonoObject));
8906 mono_mb_emit_byte (mb, CEE_ADD);
8907 for (i = 0; i < sig->param_count; ++i)
8908 mono_mb_emit_ldarg (mb, i + 1);
8909 mono_mb_emit_managed_call (mb, method, NULL);
8910 mono_mb_emit_byte (mb, CEE_RET);
8913 res = mono_mb_create_and_cache (cache, method,
8914 mb, sig, sig->param_count + 16);
8917 /* mono_method_print_code (res); */
8923 STELEMREF_OBJECT, /*no check at all*/
8924 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
8925 STELEMREF_CLASS, /*only the klass->parents check*/
8926 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
8927 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
8928 STELEMREF_KIND_COUNT
8931 static const char *strelemref_wrapper_name[] = {
8932 "object", "sealed_class", "class", "interface", "complex"
8936 is_monomorphic_array (MonoClass *klass)
8938 MonoClass *element_class;
8939 if (klass->rank != 1)
8942 element_class = klass->element_class;
8943 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
8947 get_virtual_stelemref_kind (MonoClass *element_class)
8949 if (element_class == mono_defaults.object_class)
8950 return STELEMREF_OBJECT;
8951 if (is_monomorphic_array (element_class))
8952 return STELEMREF_SEALED_CLASS;
8953 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
8954 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
8955 #ifdef COMPRESSED_INTERFACE_BITMAP
8956 return STELEMREF_COMPLEX;
8958 return STELEMREF_INTERFACE;
8960 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
8961 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
8962 return STELEMREF_COMPLEX;
8963 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
8964 return STELEMREF_SEALED_CLASS;
8965 return STELEMREF_CLASS;
8971 load_array_element_address (MonoMethodBuilder *mb)
8973 mono_mb_emit_ldarg (mb, 0);
8974 mono_mb_emit_ldarg (mb, 1);
8975 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8979 load_array_class (MonoMethodBuilder *mb, int aklass)
8981 mono_mb_emit_ldarg (mb, 0);
8982 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8983 mono_mb_emit_byte (mb, CEE_LDIND_I);
8984 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8985 mono_mb_emit_byte (mb, CEE_LDIND_I);
8986 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
8987 mono_mb_emit_byte (mb, CEE_LDIND_I);
8988 mono_mb_emit_stloc (mb, aklass);
8992 load_value_class (MonoMethodBuilder *mb, int vklass)
8994 mono_mb_emit_ldarg (mb, 2);
8995 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8996 mono_mb_emit_byte (mb, CEE_LDIND_I);
8997 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8998 mono_mb_emit_byte (mb, CEE_LDIND_I);
8999 mono_mb_emit_stloc (mb, vklass);
9005 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9007 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9008 printf ("slow vstore of %s\n", name);
9014 * The wrapper info for the wrapper is a WrapperInfo structure.
9017 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9018 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9019 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9020 * - Add a case for arrays of arrays.
9023 get_virtual_stelemref_wrapper (int kind)
9025 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9026 static MonoMethodSignature *signature;
9027 MonoMethodBuilder *mb;
9030 const char *param_names [16];
9032 int aklass, vklass, vtable, uiid;
9033 int array_slot_addr;
9036 if (cached_methods [kind])
9037 return cached_methods [kind];
9039 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9040 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9044 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9046 /* void this::stelemref (size_t idx, void* value) */
9047 sig->ret = &mono_defaults.void_class->byval_arg;
9048 sig->hasthis = TRUE;
9049 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9050 sig->params [1] = &mono_defaults.object_class->byval_arg;
9055 param_names [0] = "index";
9056 param_names [1] = "value";
9057 mono_mb_set_param_names (mb, param_names);
9059 /*For now simply call plain old stelemref*/
9061 case STELEMREF_OBJECT:
9062 /* ldelema (implicit bound check) */
9063 load_array_element_address (mb);
9065 mono_mb_emit_ldarg (mb, 2);
9066 mono_mb_emit_byte (mb, CEE_STIND_REF);
9067 mono_mb_emit_byte (mb, CEE_RET);
9070 case STELEMREF_COMPLEX:
9072 <ldelema (bound check)>
9075 if (!mono_object_isinst (value, aklass))
9079 *array_slot_addr = value;
9082 throw new ArrayTypeMismatchException ();
9085 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9086 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9090 /*Use this to debug/record stores that are going thru the slow path*/
9091 MonoMethodSignature *csig;
9092 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9093 csig->ret = &mono_defaults.void_class->byval_arg;
9094 csig->params [0] = &mono_defaults.object_class->byval_arg;
9095 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9096 csig->params [2] = &mono_defaults.object_class->byval_arg;
9097 mono_mb_emit_ldarg (mb, 0);
9098 mono_mb_emit_ldarg (mb, 1);
9099 mono_mb_emit_ldarg (mb, 2);
9100 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9104 /* ldelema (implicit bound check) */
9105 load_array_element_address (mb);
9106 mono_mb_emit_stloc (mb, array_slot_addr);
9108 /* if (!value) goto do_store */
9109 mono_mb_emit_ldarg (mb, 2);
9110 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9112 /* aklass = array->vtable->klass->element_class */
9113 load_array_class (mb, aklass);
9115 /*if (mono_object_isinst (value, aklass)) */
9116 mono_mb_emit_ldarg (mb, 2);
9117 mono_mb_emit_ldloc (mb, aklass);
9118 mono_mb_emit_icall (mb, mono_object_isinst);
9119 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9122 mono_mb_patch_branch (mb, b1);
9123 mono_mb_emit_ldloc (mb, array_slot_addr);
9124 mono_mb_emit_ldarg (mb, 2);
9125 mono_mb_emit_byte (mb, CEE_STIND_REF);
9126 mono_mb_emit_byte (mb, CEE_RET);
9129 mono_mb_patch_branch (mb, b2);
9131 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9134 case STELEMREF_SEALED_CLASS:
9136 <ldelema (bound check)>
9140 aklass = array->vtable->klass->element_class;
9141 vklass = value->vtable->klass;
9143 if (vklass != aklass)
9147 *array_slot_addr = value;
9150 throw new ArrayTypeMismatchException ();
9152 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9153 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9154 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9157 /* ldelema (implicit bound check) */
9158 load_array_element_address (mb);
9159 mono_mb_emit_stloc (mb, array_slot_addr);
9161 /* if (!value) goto do_store */
9162 mono_mb_emit_ldarg (mb, 2);
9163 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9165 /* aklass = array->vtable->klass->element_class */
9166 load_array_class (mb, aklass);
9168 /* vklass = value->vtable->klass */
9169 load_value_class (mb, vklass);
9171 /*if (vklass != aklass) goto do_exception; */
9172 mono_mb_emit_ldloc (mb, aklass);
9173 mono_mb_emit_ldloc (mb, vklass);
9174 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9177 mono_mb_patch_branch (mb, b1);
9178 mono_mb_emit_ldloc (mb, array_slot_addr);
9179 mono_mb_emit_ldarg (mb, 2);
9180 mono_mb_emit_byte (mb, CEE_STIND_REF);
9181 mono_mb_emit_byte (mb, CEE_RET);
9184 mono_mb_patch_branch (mb, b2);
9185 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9188 case STELEMREF_CLASS:
9191 <ldelema (bound check)>
9195 aklass = array->vtable->klass->element_class;
9196 vklass = value->vtable->klass;
9198 if (vklass->idepth < aklass->idepth)
9201 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9205 *array_slot_addr = value;
9209 throw new ArrayTypeMismatchException ();
9211 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9212 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9213 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9215 /* ldelema (implicit bound check) */
9216 load_array_element_address (mb);
9217 mono_mb_emit_stloc (mb, array_slot_addr);
9219 /* if (!value) goto do_store */
9220 mono_mb_emit_ldarg (mb, 2);
9221 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9223 /* aklass = array->vtable->klass->element_class */
9224 load_array_class (mb, aklass);
9226 /* vklass = value->vtable->klass */
9227 load_value_class (mb, vklass);
9229 /*if (mono_object_isinst (value, aklass)) */
9230 mono_mb_emit_ldarg (mb, 2);
9231 mono_mb_emit_ldloc (mb, aklass);
9232 mono_mb_emit_icall (mb, mono_object_isinst);
9233 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9235 /* if (vklass->idepth < aklass->idepth) goto failue */
9236 mono_mb_emit_ldloc (mb, vklass);
9237 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9238 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9240 mono_mb_emit_ldloc (mb, aklass);
9241 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9242 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9244 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9246 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9247 mono_mb_emit_ldloc (mb, vklass);
9248 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9249 mono_mb_emit_byte (mb, CEE_LDIND_I);
9251 mono_mb_emit_ldloc (mb, aklass);
9252 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9253 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9254 mono_mb_emit_icon (mb, 1);
9255 mono_mb_emit_byte (mb, CEE_SUB);
9256 mono_mb_emit_icon (mb, sizeof (void*));
9257 mono_mb_emit_byte (mb, CEE_MUL);
9258 mono_mb_emit_byte (mb, CEE_ADD);
9259 mono_mb_emit_byte (mb, CEE_LDIND_I);
9261 mono_mb_emit_ldloc (mb, aklass);
9262 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9265 mono_mb_patch_branch (mb, b1);
9266 mono_mb_emit_ldloc (mb, array_slot_addr);
9267 mono_mb_emit_ldarg (mb, 2);
9268 mono_mb_emit_byte (mb, CEE_STIND_REF);
9269 mono_mb_emit_byte (mb, CEE_RET);
9272 mono_mb_patch_branch (mb, b2);
9273 mono_mb_patch_branch (mb, b3);
9275 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9278 case STELEMREF_INTERFACE:
9285 klass = array->obj.vtable->klass->element_class;
9287 uiid = klass->interface_id;
9288 if (uiid > vt->max_interface_id)
9290 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9293 mono_array_setref (array, index, value);
9296 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9298 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9299 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9300 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9301 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9303 /* ldelema (implicit bound check) */
9304 load_array_element_address (mb);
9305 mono_mb_emit_stloc (mb, array_slot_addr);
9307 /* if (!value) goto do_store */
9308 mono_mb_emit_ldarg (mb, 2);
9309 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9311 /* klass = array->vtable->klass->element_class */
9312 load_array_class (mb, aklass);
9314 /* vt = value->vtable */
9315 mono_mb_emit_ldarg (mb, 2);
9316 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9317 mono_mb_emit_byte (mb, CEE_LDIND_I);
9318 mono_mb_emit_stloc (mb, vtable);
9320 /* uiid = klass->interface_id; */
9321 mono_mb_emit_ldloc (mb, aklass);
9322 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9323 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9324 mono_mb_emit_stloc (mb, uiid);
9326 /*if (uiid > vt->max_interface_id)*/
9327 mono_mb_emit_ldloc (mb, uiid);
9328 mono_mb_emit_ldloc (mb, vtable);
9329 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9330 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9331 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9333 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9335 /*vt->interface_bitmap*/
9336 mono_mb_emit_ldloc (mb, vtable);
9337 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9338 mono_mb_emit_byte (mb, CEE_LDIND_I);
9341 mono_mb_emit_ldloc (mb, uiid);
9342 mono_mb_emit_icon (mb, 3);
9343 mono_mb_emit_byte (mb, CEE_SHR_UN);
9345 /*vt->interface_bitmap [(uiid) >> 3]*/
9346 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9347 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9349 /*(1 << ((uiid)&7)))*/
9350 mono_mb_emit_icon (mb, 1);
9351 mono_mb_emit_ldloc (mb, uiid);
9352 mono_mb_emit_icon (mb, 7);
9353 mono_mb_emit_byte (mb, CEE_AND);
9354 mono_mb_emit_byte (mb, CEE_SHL);
9356 /*bitwise and the whole thing*/
9357 mono_mb_emit_byte (mb, CEE_AND);
9358 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9361 mono_mb_patch_branch (mb, b1);
9362 mono_mb_emit_ldloc (mb, array_slot_addr);
9363 mono_mb_emit_ldarg (mb, 2);
9364 mono_mb_emit_byte (mb, CEE_STIND_REF);
9365 mono_mb_emit_byte (mb, CEE_RET);
9368 mono_mb_patch_branch (mb, b2);
9369 mono_mb_patch_branch (mb, b3);
9370 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9374 mono_mb_emit_ldarg (mb, 0);
9375 mono_mb_emit_ldarg (mb, 1);
9376 mono_mb_emit_ldarg (mb, 2);
9377 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9378 mono_mb_emit_byte (mb, CEE_RET);
9381 #endif /* DISABLE_JIT */
9382 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9383 info->d.virtual_stelemref.kind = kind;
9384 res = mono_mb_create (mb, signature, 4, info);
9385 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9387 mono_marshal_lock ();
9388 if (!cached_methods [kind]) {
9389 cached_methods [kind] = res;
9390 mono_marshal_unlock ();
9392 mono_marshal_unlock ();
9393 mono_free_method (res);
9397 return cached_methods [kind];
9401 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9405 g_assert (array_class->rank == 1);
9406 kind = get_virtual_stelemref_kind (array_class->element_class);
9408 return get_virtual_stelemref_wrapper (kind);
9412 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9417 *nwrappers = STELEMREF_KIND_COUNT;
9418 res = g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9419 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9420 res [i] = get_virtual_stelemref_wrapper (i);
9425 * The wrapper info for the wrapper is a WrapperInfo structure.
9428 mono_marshal_get_stelemref (void)
9430 static MonoMethod* ret = NULL;
9431 MonoMethodSignature *sig;
9432 MonoMethodBuilder *mb;
9435 guint32 b1, b2, b3, b4;
9438 int array_slot_addr;
9443 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9446 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9448 /* void stelemref (void* array, int idx, void* value) */
9449 sig->ret = &mono_defaults.void_class->byval_arg;
9450 sig->params [0] = &mono_defaults.object_class->byval_arg;
9451 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9452 sig->params [2] = &mono_defaults.object_class->byval_arg;
9455 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9456 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9457 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9461 <ldelema (bound check)>
9465 aklass = array->vtable->klass->element_class;
9466 vklass = value->vtable->klass;
9468 if (vklass->idepth < aklass->idepth)
9471 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9475 *array_slot_addr = value;
9479 if (mono_object_isinst (value, aklass))
9482 throw new ArrayTypeMismatchException ();
9485 /* ldelema (implicit bound check) */
9486 mono_mb_emit_ldarg (mb, 0);
9487 mono_mb_emit_ldarg (mb, 1);
9488 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9489 mono_mb_emit_stloc (mb, array_slot_addr);
9491 /* if (!value) goto do_store */
9492 mono_mb_emit_ldarg (mb, 2);
9493 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9495 /* aklass = array->vtable->klass->element_class */
9496 mono_mb_emit_ldarg (mb, 0);
9497 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9498 mono_mb_emit_byte (mb, CEE_LDIND_I);
9499 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9500 mono_mb_emit_byte (mb, CEE_LDIND_I);
9501 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9502 mono_mb_emit_byte (mb, CEE_LDIND_I);
9503 mono_mb_emit_stloc (mb, aklass);
9505 /* vklass = value->vtable->klass */
9506 mono_mb_emit_ldarg (mb, 2);
9507 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9508 mono_mb_emit_byte (mb, CEE_LDIND_I);
9509 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9510 mono_mb_emit_byte (mb, CEE_LDIND_I);
9511 mono_mb_emit_stloc (mb, vklass);
9513 /* if (vklass->idepth < aklass->idepth) goto failue */
9514 mono_mb_emit_ldloc (mb, vklass);
9515 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9516 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9518 mono_mb_emit_ldloc (mb, aklass);
9519 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9520 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9522 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9524 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9525 mono_mb_emit_ldloc (mb, vklass);
9526 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9527 mono_mb_emit_byte (mb, CEE_LDIND_I);
9529 mono_mb_emit_ldloc (mb, aklass);
9530 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9531 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9532 mono_mb_emit_icon (mb, 1);
9533 mono_mb_emit_byte (mb, CEE_SUB);
9534 mono_mb_emit_icon (mb, sizeof (void*));
9535 mono_mb_emit_byte (mb, CEE_MUL);
9536 mono_mb_emit_byte (mb, CEE_ADD);
9537 mono_mb_emit_byte (mb, CEE_LDIND_I);
9539 mono_mb_emit_ldloc (mb, aklass);
9541 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9543 copy_pos = mono_mb_get_label (mb);
9545 mono_mb_patch_branch (mb, b1);
9546 mono_mb_emit_ldloc (mb, array_slot_addr);
9547 mono_mb_emit_ldarg (mb, 2);
9548 mono_mb_emit_byte (mb, CEE_STIND_REF);
9550 mono_mb_emit_byte (mb, CEE_RET);
9553 mono_mb_patch_branch (mb, b2);
9554 mono_mb_patch_branch (mb, b3);
9556 mono_mb_emit_ldarg (mb, 2);
9557 mono_mb_emit_ldloc (mb, aklass);
9558 mono_mb_emit_icall (mb, mono_object_isinst);
9560 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9561 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9562 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9564 mono_mb_emit_byte (mb, CEE_RET);
9566 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9567 ret = mono_mb_create (mb, sig, 4, info);
9574 * mono_marshal_get_gsharedvt_in_wrapper:
9576 * This wrapper handles calls from normal code to gsharedvt code.
9578 * The wrapper info for the wrapper is a WrapperInfo structure.
9581 mono_marshal_get_gsharedvt_in_wrapper (void)
9583 static MonoMethod* ret = NULL;
9584 MonoMethodSignature *sig;
9585 MonoMethodBuilder *mb;
9591 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9593 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9594 sig->ret = &mono_defaults.void_class->byval_arg;
9598 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9600 mono_mb_emit_byte (mb, CEE_RET);
9602 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9603 ret = mono_mb_create (mb, sig, 4, info);
9610 * mono_marshal_get_gsharedvt_out_wrapper:
9612 * This wrapper handles calls from gsharedvt code to normal code.
9614 * The wrapper info for the wrapper is a WrapperInfo structure.
9617 mono_marshal_get_gsharedvt_out_wrapper (void)
9619 static MonoMethod* ret = NULL;
9620 MonoMethodSignature *sig;
9621 MonoMethodBuilder *mb;
9627 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9629 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9630 sig->ret = &mono_defaults.void_class->byval_arg;
9634 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9636 mono_mb_emit_byte (mb, CEE_RET);
9638 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9639 ret = mono_mb_create (mb, sig, 4, info);
9651 /* LOCKING: vars accessed under the marshal lock */
9652 static ArrayElemAddr *elem_addr_cache = NULL;
9653 static int elem_addr_cache_size = 0;
9654 static int elem_addr_cache_next = 0;
9657 * mono_marshal_get_array_address:
9658 * @rank: rank of the array type
9659 * @elem_size: size in bytes of an element of an array.
9661 * Returns a MonoMethod that implements the code to get the address
9662 * of an element in a multi-dimenasional array of @rank dimensions.
9663 * The returned method takes an array as the first argument and then
9664 * @rank indexes for the @rank dimensions.
9665 * If ELEM_SIZE is 0, read the array size from the array object.
9668 mono_marshal_get_array_address (int rank, int elem_size)
9671 MonoMethodBuilder *mb;
9672 MonoMethodSignature *sig;
9675 int i, bounds, ind, realidx;
9676 int branch_pos, *branch_positions;
9680 mono_marshal_lock ();
9681 for (i = 0; i < elem_addr_cache_next; ++i) {
9682 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9683 ret = elem_addr_cache [i].method;
9687 mono_marshal_unlock ();
9691 branch_positions = g_new0 (int, rank);
9693 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9695 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9696 sig->ret = &mono_defaults.int_class->byval_arg;
9697 sig->params [0] = &mono_defaults.object_class->byval_arg;
9698 for (i = 0; i < rank; ++i) {
9699 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9702 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9703 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9707 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9708 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9709 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9711 /* bounds = array->bounds; */
9712 mono_mb_emit_ldarg (mb, 0);
9713 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9714 mono_mb_emit_byte (mb, CEE_LDIND_I);
9715 mono_mb_emit_stloc (mb, bounds);
9717 /* ind is the overall element index, realidx is the partial index in a single dimension */
9718 /* ind = idx0 - bounds [0].lower_bound */
9719 mono_mb_emit_ldarg (mb, 1);
9720 mono_mb_emit_ldloc (mb, bounds);
9721 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9722 mono_mb_emit_byte (mb, CEE_ADD);
9723 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9724 mono_mb_emit_byte (mb, CEE_SUB);
9725 mono_mb_emit_stloc (mb, ind);
9726 /* if (ind >= bounds [0].length) goto exeception; */
9727 mono_mb_emit_ldloc (mb, ind);
9728 mono_mb_emit_ldloc (mb, bounds);
9729 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9730 mono_mb_emit_byte (mb, CEE_ADD);
9731 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9732 /* note that we use unsigned comparison */
9733 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9735 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9736 * We could also decide to ignore the passed elem_size and get it
9737 * from the array object, to reduce the number of methods we generate:
9738 * the additional cost is 3 memory loads and a non-immediate mul.
9740 for (i = 1; i < rank; ++i) {
9741 /* realidx = idxi - bounds [i].lower_bound */
9742 mono_mb_emit_ldarg (mb, 1 + i);
9743 mono_mb_emit_ldloc (mb, bounds);
9744 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9745 mono_mb_emit_byte (mb, CEE_ADD);
9746 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9747 mono_mb_emit_byte (mb, CEE_SUB);
9748 mono_mb_emit_stloc (mb, realidx);
9749 /* if (realidx >= bounds [i].length) goto exeception; */
9750 mono_mb_emit_ldloc (mb, realidx);
9751 mono_mb_emit_ldloc (mb, bounds);
9752 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9753 mono_mb_emit_byte (mb, CEE_ADD);
9754 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9755 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9756 /* ind = ind * bounds [i].length + realidx */
9757 mono_mb_emit_ldloc (mb, ind);
9758 mono_mb_emit_ldloc (mb, bounds);
9759 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9760 mono_mb_emit_byte (mb, CEE_ADD);
9761 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9762 mono_mb_emit_byte (mb, CEE_MUL);
9763 mono_mb_emit_ldloc (mb, realidx);
9764 mono_mb_emit_byte (mb, CEE_ADD);
9765 mono_mb_emit_stloc (mb, ind);
9768 /* return array->vector + ind * element_size */
9769 mono_mb_emit_ldarg (mb, 0);
9770 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9771 mono_mb_emit_ldloc (mb, ind);
9773 mono_mb_emit_icon (mb, elem_size);
9775 /* Load arr->vtable->klass->sizes.element_class */
9776 mono_mb_emit_ldarg (mb, 0);
9777 mono_mb_emit_byte (mb, CEE_CONV_I);
9778 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9779 mono_mb_emit_byte (mb, CEE_ADD);
9780 mono_mb_emit_byte (mb, CEE_LDIND_I);
9781 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9782 mono_mb_emit_byte (mb, CEE_ADD);
9783 mono_mb_emit_byte (mb, CEE_LDIND_I);
9784 /* sizes is an union, so this reads sizes.element_size */
9785 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9786 mono_mb_emit_byte (mb, CEE_ADD);
9787 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9789 mono_mb_emit_byte (mb, CEE_MUL);
9790 mono_mb_emit_byte (mb, CEE_ADD);
9791 mono_mb_emit_byte (mb, CEE_RET);
9793 /* patch the branches to get here and throw */
9794 for (i = 1; i < rank; ++i) {
9795 mono_mb_patch_branch (mb, branch_positions [i]);
9797 mono_mb_patch_branch (mb, branch_pos);
9798 /* throw exception */
9799 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9801 g_free (branch_positions);
9802 #endif /* DISABLE_JIT */
9804 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9805 info->d.element_addr.rank = rank;
9806 info->d.element_addr.elem_size = elem_size;
9807 ret = mono_mb_create (mb, sig, 4, info);
9810 /* cache the result */
9812 mono_marshal_lock ();
9813 for (i = 0; i < elem_addr_cache_next; ++i) {
9814 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9815 /* FIXME: free ret */
9816 ret = elem_addr_cache [i].method;
9822 if (elem_addr_cache_next >= elem_addr_cache_size) {
9823 int new_size = elem_addr_cache_size + 4;
9824 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9825 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9826 g_free (elem_addr_cache);
9827 elem_addr_cache = new_array;
9828 elem_addr_cache_size = new_size;
9830 elem_addr_cache [elem_addr_cache_next].rank = rank;
9831 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9832 elem_addr_cache [elem_addr_cache_next].method = ret;
9833 elem_addr_cache_next ++;
9835 mono_marshal_unlock ();
9840 * mono_marshal_get_array_accessor_wrapper:
9842 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
9845 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
9847 MonoMethodSignature *sig;
9848 MonoMethodBuilder *mb;
9852 MonoGenericContext *ctx = NULL;
9853 MonoMethod *orig_method = NULL;
9854 MonoGenericContainer *container = NULL;
9858 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
9859 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
9860 * FIXME: Use generic methods.
9867 g_assert_not_reached ();
9869 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
9870 if ((res = mono_marshal_find_in_cache (cache, method)))
9874 sig = signature_dup (method->klass->image, mono_method_signature (method));
9877 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9880 /* Call the method */
9882 mono_mb_emit_ldarg (mb, 0);
9883 for (i = 0; i < sig->param_count; i++)
9884 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9888 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9889 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9891 mono_mb_emit_managed_call (mb, method, NULL);
9893 mono_mb_emit_byte (mb, CEE_RET);
9898 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
9899 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9901 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
9902 info->d.array_accessor.method = method;
9904 res = mono_mb_create_and_cache_full (cache, method,
9905 mb, sig, sig->param_count + 16,
9914 mono_marshal_alloc (gulong size)
9919 res = CoTaskMemAlloc (size);
9921 res = g_try_malloc ((gulong)size);
9923 mono_gc_out_of_memory ((gulong)size);
9929 mono_marshal_free (gpointer ptr)
9932 CoTaskMemFree (ptr);
9939 mono_marshal_free_array (gpointer *ptr, int size)
9946 for (i = 0; i < size; i++)
9952 mono_marshal_string_to_utf16 (MonoString *s)
9954 return s ? mono_string_chars (s) : NULL;
9958 mono_marshal_string_to_utf16_copy (MonoString *s)
9963 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9964 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9965 res [mono_string_length (s)] = 0;
9971 * mono_marshal_set_last_error:
9973 * This function is invoked to set the last error value from a P/Invoke call
9974 * which has SetLastError set.
9977 mono_marshal_set_last_error (void)
9980 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9982 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
9987 mono_marshal_set_last_error_windows (int error)
9990 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
9995 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9996 gpointer dest, gint32 length)
10001 MONO_CHECK_ARG_NULL (src,);
10002 MONO_CHECK_ARG_NULL (dest,);
10004 if (src->obj.vtable->klass->rank != 1) {
10005 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10008 if (start_index < 0) {
10009 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10013 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10016 if (start_index + length > mono_array_length (src)) {
10017 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10021 element_size = mono_array_element_size (src->obj.vtable->klass);
10023 /* no references should be involved */
10024 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10026 memcpy (dest, source_addr, length * element_size);
10030 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10031 MonoArray *dest, gint32 length)
10036 MONO_CHECK_ARG_NULL (src,);
10037 MONO_CHECK_ARG_NULL (dest,);
10039 if (dest->obj.vtable->klass->rank != 1) {
10040 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10043 if (start_index < 0) {
10044 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10048 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10051 if (start_index + length > mono_array_length (dest)) {
10052 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10055 element_size = mono_array_element_size (dest->obj.vtable->klass);
10057 /* no references should be involved */
10058 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10060 memcpy (dest_addr, src, length * element_size);
10064 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10069 return mono_string_new (mono_domain_get (), ptr);
10073 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10076 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10079 return mono_string_new_len (mono_domain_get (), ptr, len);
10084 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10086 MonoDomain *domain = mono_domain_get ();
10096 return mono_string_new_utf16 (domain, ptr, len);
10100 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10102 MonoDomain *domain = mono_domain_get ();
10105 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10108 return mono_string_new_utf16 (domain, ptr, len);
10113 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10115 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10119 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10125 MONO_CHECK_ARG_NULL (rtype, 0);
10127 type = rtype->type;
10128 klass = mono_class_from_mono_type (type);
10129 if (!mono_class_init (klass)) {
10130 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10134 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10136 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10137 return sizeof (gpointer);
10138 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10140 MonoException *exc;
10142 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10143 exc = mono_get_exception_argument ("t", msg);
10145 mono_set_pending_exception (exc);
10149 return mono_class_native_size (klass, NULL);
10153 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10155 MonoMethod *method;
10158 MONO_CHECK_ARG_NULL (obj,);
10159 MONO_CHECK_ARG_NULL (dst,);
10161 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10165 pa [2] = &delete_old;
10167 mono_runtime_invoke (method, NULL, pa, NULL);
10171 ptr_to_structure (gpointer src, MonoObject *dst)
10173 MonoMethod *method;
10176 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10181 mono_runtime_invoke (method, NULL, pa, NULL);
10185 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10189 MONO_CHECK_ARG_NULL (src,);
10190 MONO_CHECK_ARG_NULL (dst,);
10192 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10194 if (t->type == MONO_TYPE_VALUETYPE) {
10195 MonoException *exc;
10198 tmp = g_strdup_printf ("Destination is a boxed value type.");
10199 exc = mono_get_exception_argument ("dst", tmp);
10202 mono_set_pending_exception (exc);
10206 ptr_to_structure (src, dst);
10210 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10213 MonoDomain *domain = mono_domain_get ();
10218 MONO_CHECK_ARG_NULL (type, NULL);
10220 klass = mono_class_from_mono_type (type->type);
10221 if (!mono_class_init (klass)) {
10222 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10226 res = mono_object_new (domain, klass);
10228 ptr_to_structure (src, res);
10234 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10236 MonoMarshalType *info;
10239 int match_index = -1;
10241 MONO_CHECK_ARG_NULL (type, 0);
10242 MONO_CHECK_ARG_NULL (field_name, 0);
10244 fname = mono_string_to_utf8 (field_name);
10245 klass = mono_class_from_mono_type (type->type);
10246 if (!mono_class_init (klass)) {
10247 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10251 while (klass && match_index == -1) {
10252 MonoClassField* field;
10254 gpointer iter = NULL;
10255 while ((field = mono_class_get_fields (klass, &iter))) {
10256 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10258 if (!strcmp (fname, mono_field_get_name (field))) {
10265 if (match_index == -1)
10266 klass = klass->parent;
10271 if(match_index == -1) {
10272 MonoException* exc;
10275 /* Get back original class instance */
10276 klass = mono_class_from_mono_type (type->type);
10278 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10279 exc = mono_get_exception_argument ("fieldName", tmp);
10282 mono_set_pending_exception ((MonoException*)exc);
10286 info = mono_marshal_load_type_info (klass);
10287 return info->fields [match_index].offset;
10291 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10296 tres = mono_string_to_utf8 (string);
10300 len = strlen (tres) + 1;
10301 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10302 memcpy (ret, tres, len);
10307 return mono_string_to_utf8 (string);
10312 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10314 if (string == NULL)
10317 #ifdef TARGET_WIN32
10318 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10319 ((mono_string_length (string) + 1) * 2);
10321 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10323 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10324 res [mono_string_length (string)] = 0;
10330 mono_struct_delete_old (MonoClass *klass, char *ptr)
10332 MonoMarshalType *info;
10335 info = mono_marshal_load_type_info (klass);
10337 for (i = 0; i < info->num_fields; i++) {
10338 MonoMarshalConv conv;
10339 MonoType *ftype = info->fields [i].field->type;
10342 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10345 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10346 klass->unicode, &conv);
10348 cpos = ptr + info->fields [i].offset;
10351 case MONO_MARSHAL_CONV_NONE:
10352 if (MONO_TYPE_ISSTRUCT (ftype)) {
10353 mono_struct_delete_old (ftype->data.klass, cpos);
10357 case MONO_MARSHAL_CONV_STR_LPWSTR:
10358 /* We assume this field points inside a MonoString */
10360 case MONO_MARSHAL_CONV_STR_LPTSTR:
10361 #ifdef TARGET_WIN32
10362 /* We assume this field points inside a MonoString
10366 case MONO_MARSHAL_CONV_STR_LPSTR:
10367 case MONO_MARSHAL_CONV_STR_BSTR:
10368 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10369 case MONO_MARSHAL_CONV_STR_TBSTR:
10370 mono_marshal_free (*(gpointer *)cpos);
10380 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10384 MONO_CHECK_ARG_NULL (src,);
10385 MONO_CHECK_ARG_NULL (type,);
10387 klass = mono_class_from_mono_type (type->type);
10388 if (!mono_class_init (klass)) {
10389 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10393 mono_struct_delete_old (klass, (char *)src);
10397 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10401 if ((gulong)size == 0)
10402 /* This returns a valid pointer for size 0 on MS.NET */
10406 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10408 res = g_try_malloc ((gulong)size);
10411 mono_gc_out_of_memory ((gulong)size);
10417 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10422 mono_gc_out_of_memory ((gulong)size);
10427 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10429 res = g_try_realloc (ptr, (gulong)size);
10432 mono_gc_out_of_memory ((gulong)size);
10438 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10448 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10453 res = CoTaskMemAlloc (size);
10455 if ((gulong)size == 0)
10456 /* This returns a valid pointer for size 0 on MS.NET */
10459 res = g_try_malloc ((gulong)size);
10462 mono_gc_out_of_memory ((gulong)size);
10467 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10470 CoTaskMemFree (ptr);
10477 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10482 res = CoTaskMemRealloc (ptr, size);
10484 res = g_try_realloc (ptr, (gulong)size);
10487 mono_gc_out_of_memory ((gulong)size);
10492 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10494 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10498 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10500 MonoClass *klass = mono_type_get_class (type->type);
10501 if (!mono_class_init (klass)) {
10502 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10506 return mono_ftnptr_to_delegate (klass, ftn);
10510 * mono_marshal_is_loading_type_info:
10512 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10516 mono_marshal_is_loading_type_info (MonoClass *klass)
10518 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10520 return g_slist_find (loads_list, klass) != NULL;
10524 * mono_marshal_load_type_info:
10526 * Initialize klass->marshal_info using information from metadata. This function can
10527 * recursively call itself, and the caller is responsible to avoid that by calling
10528 * mono_marshal_is_loading_type_info () beforehand.
10530 * LOCKING: Acquires the loader lock.
10533 mono_marshal_load_type_info (MonoClass* klass)
10536 guint32 native_size = 0, min_align = 1, packing;
10537 MonoMarshalType *info;
10538 MonoClassField* field;
10541 GSList *loads_list;
10543 g_assert (klass != NULL);
10545 if (klass->marshal_info)
10546 return klass->marshal_info;
10548 if (!klass->inited)
10549 mono_class_init (klass);
10551 if (klass->marshal_info)
10552 return klass->marshal_info;
10555 * This function can recursively call itself, so we keep the list of classes which are
10556 * under initialization in a TLS list.
10558 g_assert (!mono_marshal_is_loading_type_info (klass));
10559 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10560 loads_list = g_slist_prepend (loads_list, klass);
10561 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10564 while ((field = mono_class_get_fields (klass, &iter))) {
10565 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10567 if (mono_field_is_deleted (field))
10572 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10574 /* The mempool is protected by the loader lock */
10575 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10576 info->num_fields = count;
10578 /* Try to find a size for this type in metadata */
10579 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10581 if (klass->parent) {
10582 int parent_size = mono_class_native_size (klass->parent, NULL);
10584 /* Add parent size to real size */
10585 native_size += parent_size;
10586 info->native_size = parent_size;
10589 packing = klass->packing_size ? klass->packing_size : 8;
10592 while ((field = mono_class_get_fields (klass, &iter))) {
10596 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10599 if (mono_field_is_deleted (field))
10601 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10602 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10603 NULL, NULL, &info->fields [j].mspec);
10605 info->fields [j].field = field;
10607 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10608 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10609 /* This field is a hack inserted by MCS to empty structures */
10614 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10615 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10616 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10617 &align, TRUE, klass->unicode);
10618 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10619 min_align = MAX (align, min_align);
10620 info->fields [j].offset = info->native_size;
10621 info->fields [j].offset += align - 1;
10622 info->fields [j].offset &= ~(align - 1);
10623 info->native_size = info->fields [j].offset + size;
10625 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10626 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10627 &align, TRUE, klass->unicode);
10628 min_align = MAX (align, min_align);
10629 info->fields [j].offset = field->offset - sizeof (MonoObject);
10630 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10636 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10637 info->native_size = MAX (native_size, info->native_size);
10639 * If the provided Size is equal or larger than the calculated size, and there
10640 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10642 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10643 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10646 min_align = MIN (min_align, packing);
10650 if (info->native_size & (min_align - 1)) {
10651 info->native_size += min_align - 1;
10652 info->native_size &= ~(min_align - 1);
10655 info->min_align = min_align;
10657 /* Update the class's blittable info, if the layouts don't match */
10658 if (info->native_size != mono_class_value_size (klass, NULL))
10659 klass->blittable = FALSE;
10661 /* If this is an array type, ensure that we have element info */
10662 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10663 mono_marshal_load_type_info (klass->element_class);
10666 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10667 loads_list = g_slist_remove (loads_list, klass);
10668 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10670 mono_marshal_lock ();
10671 if (!klass->marshal_info) {
10672 /*We do double-checking locking on marshal_info */
10673 mono_memory_barrier ();
10674 klass->marshal_info = info;
10676 mono_marshal_unlock ();
10678 return klass->marshal_info;
10682 * mono_class_native_size:
10685 * Returns: the native size of an object instance (when marshaled
10686 * to unmanaged code)
10689 mono_class_native_size (MonoClass *klass, guint32 *align)
10691 if (!klass->marshal_info) {
10692 if (mono_marshal_is_loading_type_info (klass)) {
10697 mono_marshal_load_type_info (klass);
10702 *align = klass->marshal_info->min_align;
10704 return klass->marshal_info->native_size;
10708 * mono_type_native_stack_size:
10709 * @t: the type to return the size it uses on the stack
10711 * Returns: the number of bytes required to hold an instance of this
10712 * type on the native stack
10715 mono_type_native_stack_size (MonoType *t, guint32 *align)
10719 g_assert (t != NULL);
10725 *align = sizeof (gpointer);
10726 return sizeof (gpointer);
10730 case MONO_TYPE_BOOLEAN:
10731 case MONO_TYPE_CHAR:
10742 case MONO_TYPE_STRING:
10743 case MONO_TYPE_OBJECT:
10744 case MONO_TYPE_CLASS:
10745 case MONO_TYPE_SZARRAY:
10746 case MONO_TYPE_PTR:
10747 case MONO_TYPE_FNPTR:
10748 case MONO_TYPE_ARRAY:
10749 *align = sizeof (gpointer);
10750 return sizeof (gpointer);
10755 *align = MONO_ABI_ALIGNOF (double);
10759 *align = MONO_ABI_ALIGNOF (gint64);
10761 case MONO_TYPE_GENERICINST:
10762 if (!mono_type_generic_inst_is_valuetype (t)) {
10763 *align = sizeof (gpointer);
10764 return sizeof (gpointer);
10767 case MONO_TYPE_TYPEDBYREF:
10768 case MONO_TYPE_VALUETYPE: {
10770 MonoClass *klass = mono_class_from_mono_type (t);
10772 if (klass->enumtype)
10773 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10775 size = mono_class_native_size (klass, align);
10776 *align = *align + 3;
10786 g_error ("type 0x%02x unknown", t->type);
10792 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10793 gboolean as_field, gboolean unicode)
10795 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10798 switch (native_type) {
10799 case MONO_NATIVE_BOOLEAN:
10802 case MONO_NATIVE_I1:
10803 case MONO_NATIVE_U1:
10806 case MONO_NATIVE_I2:
10807 case MONO_NATIVE_U2:
10808 case MONO_NATIVE_VARIANTBOOL:
10811 case MONO_NATIVE_I4:
10812 case MONO_NATIVE_U4:
10813 case MONO_NATIVE_ERROR:
10816 case MONO_NATIVE_I8:
10817 case MONO_NATIVE_U8:
10818 *align = MONO_ABI_ALIGNOF (gint64);
10820 case MONO_NATIVE_R4:
10823 case MONO_NATIVE_R8:
10824 *align = MONO_ABI_ALIGNOF (double);
10826 case MONO_NATIVE_INT:
10827 case MONO_NATIVE_UINT:
10828 case MONO_NATIVE_LPSTR:
10829 case MONO_NATIVE_LPWSTR:
10830 case MONO_NATIVE_LPTSTR:
10831 case MONO_NATIVE_BSTR:
10832 case MONO_NATIVE_ANSIBSTR:
10833 case MONO_NATIVE_TBSTR:
10834 case MONO_NATIVE_LPARRAY:
10835 case MONO_NATIVE_SAFEARRAY:
10836 case MONO_NATIVE_IUNKNOWN:
10837 case MONO_NATIVE_IDISPATCH:
10838 case MONO_NATIVE_INTERFACE:
10839 case MONO_NATIVE_ASANY:
10840 case MONO_NATIVE_FUNC:
10841 case MONO_NATIVE_LPSTRUCT:
10842 *align = MONO_ABI_ALIGNOF (gpointer);
10843 return sizeof (gpointer);
10844 case MONO_NATIVE_STRUCT:
10845 klass = mono_class_from_mono_type (type);
10846 if (klass == mono_defaults.object_class &&
10847 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10851 return mono_class_native_size (klass, align);
10852 case MONO_NATIVE_BYVALTSTR: {
10853 int esize = unicode ? 2: 1;
10856 return mspec->data.array_data.num_elem * esize;
10858 case MONO_NATIVE_BYVALARRAY: {
10859 // FIXME: Have to consider ArraySubType
10861 klass = mono_class_from_mono_type (type);
10862 if (klass->element_class == mono_defaults.char_class) {
10863 esize = unicode ? 2 : 1;
10866 esize = mono_class_native_size (klass->element_class, align);
10869 return mspec->data.array_data.num_elem * esize;
10871 case MONO_NATIVE_CUSTOM:
10872 *align = sizeof (gpointer);
10873 return sizeof (gpointer);
10875 case MONO_NATIVE_CURRENCY:
10876 case MONO_NATIVE_VBBYREFSTR:
10878 g_error ("native type %02x not implemented", native_type);
10881 g_assert_not_reached ();
10886 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10894 t = &o->vtable->klass->byval_arg;
10898 case MONO_TYPE_PTR:
10901 case MONO_TYPE_BOOLEAN:
10904 case MONO_TYPE_CHAR:
10909 return mono_object_unbox (o);
10911 case MONO_TYPE_STRING:
10912 switch (string_encoding) {
10913 case MONO_NATIVE_LPWSTR:
10914 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
10916 case MONO_NATIVE_LPSTR:
10917 return mono_string_to_lpstr ((MonoString*)o);
10920 g_warning ("marshaling conversion %d not implemented", string_encoding);
10921 g_assert_not_reached ();
10924 case MONO_TYPE_CLASS:
10925 case MONO_TYPE_VALUETYPE: {
10926 MonoMethod *method;
10929 MonoBoolean delete_old = FALSE;
10931 klass = t->data.klass;
10933 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10936 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10937 klass->blittable || klass->enumtype))
10938 return mono_object_unbox (o);
10940 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10942 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10943 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10947 pa [2] = &delete_old;
10949 mono_runtime_invoke (method, NULL, pa, NULL);
10957 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10962 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10970 t = &o->vtable->klass->byval_arg;
10972 case MONO_TYPE_STRING:
10973 switch (string_encoding) {
10974 case MONO_NATIVE_LPWSTR:
10975 case MONO_NATIVE_LPSTR:
10976 mono_marshal_free (ptr);
10979 g_warning ("marshaling conversion %d not implemented", string_encoding);
10980 g_assert_not_reached ();
10983 case MONO_TYPE_CLASS:
10984 case MONO_TYPE_VALUETYPE: {
10985 klass = t->data.klass;
10987 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10988 klass->blittable || klass->enumtype))
10991 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10992 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10998 mono_runtime_invoke (method, NULL, pa, NULL);
11001 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11002 mono_struct_delete_old (klass, ptr);
11005 mono_marshal_free (ptr);
11014 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11016 MonoMethodSignature *sig, *csig;
11017 MonoMethodBuilder *mb;
11022 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11023 mb->method->slot = -1;
11025 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11026 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11028 sig = mono_method_signature (method);
11029 csig = signature_dup (method->klass->image, sig);
11030 csig->generic_param_count = 0;
11032 #ifndef DISABLE_JIT
11033 mono_mb_emit_ldarg (mb, 0);
11034 for (i = 0; i < csig->param_count; i++)
11035 mono_mb_emit_ldarg (mb, i + 1);
11036 mono_mb_emit_managed_call (mb, method, NULL);
11037 mono_mb_emit_byte (mb, CEE_RET);
11039 /* We can corlib internal methods */
11040 mb->skip_visibility = TRUE;
11042 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11043 info->d.generic_array_helper.method = method;
11044 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11052 * The mono_win32_compat_* functions are implementations of inline
11053 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11054 * although not exported by kernel32.
11056 * We map the appropiate kernel32 entries to these functions using
11057 * dllmaps declared in the global etc/mono/config.
11061 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11063 if (!dest || !source)
11066 memcpy (dest, source, length);
11070 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11072 memset (dest, fill, length);
11076 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11078 if (!dest || !source)
11081 memmove (dest, source, length);
11085 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11087 memset (dest, 0, length);
11091 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11096 for (i = 0; i < len; ++i)
11100 g_assert (i < len);
11103 while (byte && !(byte & 1))
11105 g_assert (byte == 1);
11108 *bitmask = buf [i];
11112 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11114 MonoMethodBuilder *mb;
11115 MonoMethodSignature *sig, *csig;
11116 MonoExceptionClause *clause;
11121 int i, param_count, sig_size, pos_leave;
11125 klass = method->klass;
11126 image = method->klass->image;
11127 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11129 if ((res = mono_marshal_find_in_cache (cache, method)))
11132 sig = mono_method_signature (method);
11133 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11135 /* add "this" and exception param */
11136 param_count = sig->param_count + sig->hasthis + 1;
11138 /* dup & extend signature */
11139 csig = mono_metadata_signature_alloc (image, param_count);
11140 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11141 memcpy (csig, sig, sig_size);
11142 csig->param_count = param_count;
11145 csig->call_convention = MONO_CALL_DEFAULT;
11147 if (sig->hasthis) {
11149 csig->params [0] = &klass->byval_arg;
11150 /* move params up by one */
11151 for (i = 0; i < sig->param_count; i++)
11152 csig->params [i + 1] = sig->params [i];
11155 /* setup exception param as byref+[out] */
11156 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11157 &mono_defaults.exception_class->byval_arg);
11158 csig->params [param_count - 1]->byref = 1;
11159 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11161 /* convert struct return to object */
11162 if (MONO_TYPE_ISSTRUCT (sig->ret))
11163 csig->ret = &mono_defaults.object_class->byval_arg;
11165 #ifndef DISABLE_JIT
11166 /* local 0 (temp for exception object) */
11167 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11169 /* local 1 (temp for result) */
11170 if (!MONO_TYPE_IS_VOID (sig->ret))
11171 mono_mb_add_local (mb, sig->ret);
11173 /* clear exception arg */
11174 mono_mb_emit_ldarg (mb, param_count - 1);
11175 mono_mb_emit_byte (mb, CEE_LDNULL);
11176 mono_mb_emit_byte (mb, CEE_STIND_REF);
11179 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11180 clause->try_offset = mono_mb_get_label (mb);
11182 /* push method's args */
11183 for (i = 0; i < param_count - 1; i++) {
11187 mono_mb_emit_ldarg (mb, i);
11189 /* get the byval type of the param */
11190 klass = mono_class_from_mono_type (csig->params [i]);
11191 type = &klass->byval_arg;
11193 /* unbox struct args */
11194 if (MONO_TYPE_ISSTRUCT (type)) {
11195 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11197 /* byref args & and the "this" arg must remain a ptr.
11198 Otherwise make a copy of the value type */
11199 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11200 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11202 csig->params [i] = &mono_defaults.object_class->byval_arg;
11207 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11208 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11210 mono_mb_emit_op (mb, CEE_CALL, method);
11212 /* save result at local 1 */
11213 if (!MONO_TYPE_IS_VOID (sig->ret))
11214 mono_mb_emit_stloc (mb, 1);
11216 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11219 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11220 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11221 clause->data.catch_class = mono_defaults.object_class;
11223 clause->handler_offset = mono_mb_get_label (mb);
11225 /* store exception at local 0 */
11226 mono_mb_emit_stloc (mb, 0);
11227 mono_mb_emit_ldarg (mb, param_count - 1);
11228 mono_mb_emit_ldloc (mb, 0);
11229 mono_mb_emit_byte (mb, CEE_STIND_REF);
11230 mono_mb_emit_branch (mb, CEE_LEAVE);
11232 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11234 mono_mb_set_clauses (mb, 1, clause);
11236 mono_mb_patch_branch (mb, pos_leave);
11239 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11240 mono_mb_emit_ldloc (mb, 1);
11242 /* box the return value */
11243 if (MONO_TYPE_ISSTRUCT (sig->ret))
11244 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11247 mono_mb_emit_byte (mb, CEE_RET);
11250 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11257 * mono_marshal_free_dynamic_wrappers:
11259 * Free wrappers of the dynamic method METHOD.
11262 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11264 MonoImage *image = method->klass->image;
11266 g_assert (method_is_dynamic (method));
11268 /* This could be called during shutdown */
11269 if (marshal_mutex_initialized)
11270 mono_marshal_lock ();
11272 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11273 * they could be shared with other methods ?
11275 if (image->runtime_invoke_direct_cache)
11276 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
11277 if (image->delegate_abstract_invoke_cache)
11278 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11279 // FIXME: Need to clear the caches in other images as well
11280 if (image->delegate_bound_static_invoke_cache)
11281 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11283 if (marshal_mutex_initialized)
11284 mono_marshal_unlock ();
11288 signature_pointer_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11290 SignaturePointerPair *pair = (SignaturePointerPair*)key;
11291 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11293 return mono_metadata_signature_equal (pair->sig, sig);
11297 * mono_marshal_free_inflated_wrappers:
11299 * Free wrappers of the inflated method METHOD.
11302 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11304 MonoMethodSignature *sig = method->signature;
11306 g_assert (method->is_inflated);
11308 /* Ignore calls occuring late during cleanup. */
11309 if (!marshal_mutex_initialized)
11312 mono_marshal_lock ();
11314 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11315 * they could be shared with other methods ?
11319 * indexed by MonoMethodSignature
11321 /* FIXME: This could remove unrelated wrappers as well */
11322 if (sig && method->klass->image->delegate_begin_invoke_cache)
11323 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11324 if (sig && method->klass->image->delegate_end_invoke_cache)
11325 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11326 if (sig && method->klass->image->delegate_invoke_cache)
11327 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11328 if (sig && method->klass->image->runtime_invoke_cache)
11329 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11330 if (sig && method->klass->image->runtime_invoke_vtype_cache)
11331 g_hash_table_remove (method->klass->image->runtime_invoke_vtype_cache, sig);
11334 * indexed by SignaturePointerPair
11336 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11337 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11338 signature_pointer_pair_matches_signature, (gpointer)sig);
11341 * indexed by MonoMethod pointers
11343 if (method->klass->image->runtime_invoke_direct_cache)
11344 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11345 if (method->klass->image->managed_wrapper_cache)
11346 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11347 if (method->klass->image->native_wrapper_cache)
11348 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11349 if (method->klass->image->remoting_invoke_cache)
11350 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11351 if (method->klass->image->synchronized_cache)
11352 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11353 if (method->klass->image->unbox_wrapper_cache)
11354 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11355 if (method->klass->image->cominterop_invoke_cache)
11356 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11357 if (method->klass->image->cominterop_wrapper_cache)
11358 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11359 if (method->klass->image->thunk_invoke_cache)
11360 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11361 if (method->klass->image->native_func_wrapper_aot_cache)
11362 g_hash_table_remove (method->klass->image->native_func_wrapper_aot_cache, method);
11364 mono_marshal_unlock ();