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 MonoMethodMessage *msg;
2059 MonoDelegate *async_callback;
2060 MonoMulticastDelegate *mcast_delegate;
2064 MonoMethod *method = NULL, *method2 = NULL;
2066 g_assert (delegate);
2067 mcast_delegate = (MonoMulticastDelegate *) delegate;
2068 if (mcast_delegate->prev != NULL)
2069 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2071 #ifndef DISABLE_REMOTING
2072 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2074 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2075 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2077 /* If the target is a proxy, make a direct call. Is proxy's work
2078 // to make the call asynchronous.
2080 MonoAsyncResult *ares;
2082 MonoArray *out_args;
2083 method = delegate->method;
2085 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2086 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2087 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2088 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2089 MONO_OBJECT_SETREF (msg, async_result, ares);
2090 msg->call_type = CallType_BeginInvoke;
2093 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2095 mono_raise_exception ((MonoException *) exc);
2101 klass = delegate->object.vtable->klass;
2103 method = mono_get_delegate_invoke (klass);
2104 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2107 g_assert (method != NULL);
2109 im = mono_get_delegate_invoke (method->klass);
2110 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2112 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2118 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2120 int i, params_var, tmp_var;
2122 /* allocate local (pointer) *params[] */
2123 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2124 /* allocate local (pointer) tmp */
2125 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2127 /* alloate space on stack to store an array of pointers to the arguments */
2128 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2129 mono_mb_emit_byte (mb, CEE_PREFIX1);
2130 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2131 mono_mb_emit_stloc (mb, params_var);
2134 mono_mb_emit_ldloc (mb, params_var);
2135 mono_mb_emit_stloc (mb, tmp_var);
2137 if (save_this && sig->hasthis) {
2138 mono_mb_emit_ldloc (mb, tmp_var);
2139 mono_mb_emit_ldarg_addr (mb, 0);
2140 mono_mb_emit_byte (mb, CEE_STIND_I);
2141 /* tmp = tmp + sizeof (gpointer) */
2142 if (sig->param_count)
2143 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2147 for (i = 0; i < sig->param_count; i++) {
2148 mono_mb_emit_ldloc (mb, tmp_var);
2149 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2150 mono_mb_emit_byte (mb, CEE_STIND_I);
2151 /* tmp = tmp + sizeof (gpointer) */
2152 if (i < (sig->param_count - 1))
2153 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2159 #endif /* DISABLE_JIT */
2162 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2166 GString *res = g_string_new ("");
2169 g_string_append (res, prefix);
2170 g_string_append_c (res, '_');
2173 mono_type_get_desc (res, sig->ret, FALSE);
2176 g_string_append (res, "__this__");
2178 for (i = 0; i < sig->param_count; ++i) {
2179 g_string_append_c (res, '_');
2180 mono_type_get_desc (res, sig->params [i], FALSE);
2183 g_string_free (res, FALSE);
2188 * mono_marshal_get_string_encoding:
2190 * Return the string encoding which should be used for a given parameter.
2192 static MonoMarshalNative
2193 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2195 /* First try the parameter marshal info */
2197 if (spec->native == MONO_NATIVE_LPARRAY) {
2198 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2199 return spec->data.array_data.elem_type;
2202 return spec->native;
2206 return MONO_NATIVE_LPSTR;
2208 /* Then try the method level marshal info */
2209 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2210 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2211 return MONO_NATIVE_LPSTR;
2212 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2213 return MONO_NATIVE_LPWSTR;
2214 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2216 return MONO_NATIVE_LPWSTR;
2218 return MONO_NATIVE_LPSTR;
2221 return MONO_NATIVE_LPSTR;
2225 static MonoMarshalConv
2226 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2228 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2231 case MONO_NATIVE_LPWSTR:
2232 return MONO_MARSHAL_CONV_STR_LPWSTR;
2233 case MONO_NATIVE_LPSTR:
2234 case MONO_NATIVE_VBBYREFSTR:
2235 return MONO_MARSHAL_CONV_STR_LPSTR;
2236 case MONO_NATIVE_LPTSTR:
2237 return MONO_MARSHAL_CONV_STR_LPTSTR;
2238 case MONO_NATIVE_BSTR:
2239 return MONO_MARSHAL_CONV_STR_BSTR;
2245 static MonoMarshalConv
2246 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2248 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2251 case MONO_NATIVE_LPWSTR:
2252 return MONO_MARSHAL_CONV_SB_LPWSTR;
2254 case MONO_NATIVE_LPSTR:
2255 return MONO_MARSHAL_CONV_SB_LPSTR;
2257 case MONO_NATIVE_LPTSTR:
2258 return MONO_MARSHAL_CONV_SB_LPTSTR;
2265 static MonoMarshalConv
2266 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2268 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2273 case MONO_NATIVE_LPWSTR:
2275 return MONO_MARSHAL_CONV_LPWSTR_STR;
2276 case MONO_NATIVE_LPSTR:
2277 case MONO_NATIVE_VBBYREFSTR:
2278 return MONO_MARSHAL_CONV_LPSTR_STR;
2279 case MONO_NATIVE_LPTSTR:
2280 return MONO_MARSHAL_CONV_LPTSTR_STR;
2281 case MONO_NATIVE_BSTR:
2282 return MONO_MARSHAL_CONV_BSTR_STR;
2288 static MonoMarshalConv
2289 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2291 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2296 case MONO_NATIVE_LPWSTR:
2298 * mono_string_builder_to_utf16 does not allocate a
2299 * new buffer, so no need to free it.
2302 return MONO_MARSHAL_CONV_LPWSTR_SB;
2303 case MONO_NATIVE_LPSTR:
2304 return MONO_MARSHAL_CONV_LPSTR_SB;
2306 case MONO_NATIVE_LPTSTR:
2307 return MONO_MARSHAL_CONV_LPTSTR_SB;
2315 * Return whenever a field of a native structure or an array member needs to
2319 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2321 MonoMarshalNative encoding;
2324 case MONO_TYPE_VALUETYPE:
2325 /* FIXME: Optimize this */
2327 case MONO_TYPE_OBJECT:
2328 case MONO_TYPE_CLASS:
2329 if (t->data.klass == mono_defaults.stringbuilder_class) {
2331 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2335 case MONO_TYPE_STRING:
2336 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2337 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2344 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2347 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2350 mono_marshal_lock ();
2353 g_hash_table_new (hash_func, equal_func);
2354 mono_memory_barrier ();
2357 mono_marshal_unlock ();
2363 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2365 return get_cache (var, hash_func, equal_func);
2369 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2373 mono_marshal_lock ();
2374 res = g_hash_table_lookup (cache, key);
2375 mono_marshal_unlock ();
2382 * Create a MonoMethod from MB, set INFO as wrapper info.
2385 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2386 int max_stack, WrapperInfo *info)
2390 res = mono_mb_create_method (mb, sig, max_stack);
2392 mono_marshal_set_wrapper_info (res, info);
2396 /* Create the method from the builder and place it in the cache */
2398 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2399 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2400 int max_stack, WrapperInfo *info, gboolean *out_found)
2407 mono_marshal_lock ();
2408 res = g_hash_table_lookup (cache, key);
2409 mono_marshal_unlock ();
2412 newm = mono_mb_create_method (mb, sig, max_stack);
2413 mono_marshal_lock ();
2414 res = g_hash_table_lookup (cache, key);
2417 g_hash_table_insert (cache, key, res);
2419 mono_marshal_set_wrapper_info (res, info);
2421 mono_marshal_set_wrapper_info (res, key);
2422 mono_marshal_unlock ();
2426 mono_marshal_unlock ();
2427 mono_free_method (newm);
2435 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2436 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2439 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2443 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2446 int wrapper_type = wrapper->wrapper_type;
2449 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2452 switch (wrapper_type) {
2453 case MONO_WRAPPER_REMOTING_INVOKE:
2454 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2455 case MONO_WRAPPER_XDOMAIN_INVOKE:
2456 case MONO_WRAPPER_SYNCHRONIZED:
2457 case MONO_WRAPPER_UNBOX:
2458 res = mono_marshal_get_wrapper_info (wrapper);
2461 if (wrapper->is_inflated) {
2465 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2466 * contains an uninflated method.
2468 result = mono_class_inflate_generic_method_checked (res, mono_method_get_context (wrapper), &error);
2469 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2473 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2474 info = mono_marshal_get_wrapper_info (wrapper);
2475 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2476 return info->d.managed_to_native.method;
2479 case MONO_WRAPPER_RUNTIME_INVOKE:
2480 info = mono_marshal_get_wrapper_info (wrapper);
2481 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2482 return info->d.runtime_invoke.method;
2491 * mono_marshal_get_wrapper_info:
2493 * Retrieve the pointer stored by mono_marshal_set_wrapper_info. The type of data
2494 * returned depends on the wrapper type. It is usually a method, a class, or a
2495 * WrapperInfo structure.
2498 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2500 g_assert (wrapper->wrapper_type);
2502 return mono_method_get_wrapper_data (wrapper, 1);
2506 * mono_marshal_set_wrapper_info:
2508 * Store an arbitrary pointer inside the wrapper which is retrievable by
2509 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2510 * wrapper (method->wrapper_type).
2513 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2517 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2520 datav = ((MonoMethodWrapper *)method)->method_data;
2525 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2529 info = mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2530 info->subtype = subtype;
2535 * get_wrapper_target_class:
2537 * Return the class where a wrapper method should be placed.
2540 get_wrapper_target_class (MonoImage *image)
2547 * - can't put all wrappers into an mscorlib class, because they reference
2548 * metadata (signature) so they should be put into the same image as the
2549 * method they wrap, so they are unloaded together.
2550 * - putting them into a class with a type initalizer could cause the
2551 * initializer to be executed which can be a problem if the wrappers are
2553 * - putting them into an inflated class can cause problems if the the
2554 * class is deleted because it references an image which is unloaded.
2555 * To avoid these problems, we put the wrappers into the <Module> class of
2558 if (image_is_dynamic (image)) {
2559 klass = ((MonoDynamicImage*)image)->wrappers_type;
2561 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2562 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2570 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2571 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2575 * check_generic_wrapper_cache:
2577 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2578 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2579 * generic method definition.
2582 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2585 MonoMethod *inst, *def;
2586 MonoGenericContext *ctx;
2588 g_assert (orig_method->is_inflated);
2589 ctx = mono_method_get_context (orig_method);
2592 * Look for the instance
2594 res = mono_marshal_find_in_cache (cache, key);
2599 * Look for the definition
2601 def = mono_marshal_find_in_cache (cache, def_key);
2604 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2605 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2607 mono_memory_barrier ();
2608 mono_marshal_lock ();
2609 res = g_hash_table_lookup (cache, key);
2611 g_hash_table_insert (cache, key, inst);
2614 mono_marshal_unlock ();
2621 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2624 MonoMethod *inst, *res;
2627 * We use the same cache for the generic definition and the instances.
2629 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2630 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2631 mono_memory_barrier ();
2632 mono_marshal_lock ();
2633 res = g_hash_table_lookup (cache, key);
2635 g_hash_table_insert (cache, key, inst);
2638 mono_marshal_unlock ();
2643 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2647 MonoMethod *inst, *def;
2650 * Look for the instance
2652 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2657 * Look for the definition
2659 def = mono_marshal_find_in_cache (cache, def_method->klass);
2661 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2662 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2665 mono_memory_barrier ();
2666 mono_marshal_lock ();
2667 res = g_hash_table_lookup (cache, orig_method->klass);
2669 g_hash_table_insert (cache, orig_method->klass, inst);
2672 mono_marshal_unlock ();
2679 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2682 MonoMethod *inst, *res;
2685 * We use the same cache for the generic definition and the instances.
2687 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2688 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2690 mono_memory_barrier ();
2691 mono_marshal_lock ();
2692 res = g_hash_table_lookup (cache, orig_method->klass);
2694 g_hash_table_insert (cache, orig_method->klass, inst);
2697 mono_marshal_unlock ();
2702 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2704 MonoMethodSignature *sig;
2705 MonoMethodBuilder *mb;
2710 MonoGenericContext *ctx = NULL;
2711 MonoMethod *orig_method = NULL;
2713 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2714 !strcmp (method->name, "BeginInvoke"));
2717 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2719 if (method->is_inflated) {
2720 orig_method = method;
2721 ctx = &((MonoMethodInflated*)method)->context;
2722 method = ((MonoMethodInflated*)method)->declaring;
2725 sig = mono_signature_no_pinvoke (method);
2731 cache = get_cache (&method->klass->image->delegate_begin_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2732 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2736 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2737 (GHashFunc)mono_signature_hash,
2738 (GCompareFunc)mono_metadata_signature_equal);
2739 if ((res = mono_marshal_find_in_cache (cache, sig)))
2743 g_assert (sig->hasthis);
2745 name = mono_signature_to_name (sig, "begin_invoke");
2747 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2749 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2753 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2755 mono_mb_emit_ldarg (mb, 0);
2756 mono_mb_emit_ldloc (mb, params_var);
2757 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2758 mono_mb_emit_byte (mb, CEE_RET);
2763 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2764 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2766 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2774 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2776 MonoDomain *domain = mono_domain_get ();
2777 MonoAsyncResult *ares;
2778 MonoMethod *method = NULL;
2779 MonoMethodSignature *sig;
2780 MonoMethodMessage *msg;
2781 MonoObject *res, *exc;
2782 MonoArray *out_args;
2785 g_assert (delegate);
2787 if (!delegate->method_info) {
2788 g_assert (delegate->method);
2789 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2792 if (!delegate->method_info || !delegate->method_info->method)
2793 g_assert_not_reached ();
2795 klass = delegate->object.vtable->klass;
2797 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2798 g_assert (method != NULL);
2800 sig = mono_signature_no_pinvoke (method);
2802 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2804 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2806 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."));
2810 if (ares->async_delegate != (MonoObject*)delegate) {
2811 mono_raise_exception (mono_get_exception_invalid_operation (
2812 "The IAsyncResult object provided does not match this delegate."));
2816 #ifndef DISABLE_REMOTING
2817 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2818 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2819 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2820 mono_message_init (domain, msg, delegate->method_info, NULL);
2821 msg->call_type = CallType_EndInvoke;
2822 MONO_OBJECT_SETREF (msg, async_result, ares);
2823 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2827 res = mono_thread_pool_finish (ares, &out_args, &exc);
2831 if (((MonoException*)exc)->stack_trace) {
2832 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2834 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2836 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2839 mono_raise_exception ((MonoException*)exc);
2842 mono_method_return_message_restore (method, params, out_args);
2849 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2851 MonoType *t = mono_type_get_underlying_type (return_type);
2853 if (return_type->byref)
2854 return_type = &mono_defaults.int_class->byval_arg;
2857 case MONO_TYPE_VOID:
2858 g_assert_not_reached ();
2861 case MONO_TYPE_STRING:
2862 case MONO_TYPE_CLASS:
2863 case MONO_TYPE_OBJECT:
2864 case MONO_TYPE_ARRAY:
2865 case MONO_TYPE_SZARRAY:
2869 case MONO_TYPE_BOOLEAN:
2872 case MONO_TYPE_CHAR:
2882 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2883 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2885 case MONO_TYPE_GENERICINST:
2886 if (!mono_type_generic_inst_is_valuetype (t))
2889 case MONO_TYPE_VALUETYPE: {
2890 MonoClass *klass = mono_class_from_mono_type (return_type);
2891 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2892 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2896 case MONO_TYPE_MVAR: {
2897 MonoClass *klass = mono_class_from_mono_type (return_type);
2898 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2902 g_warning ("type 0x%x not handled", return_type->type);
2903 g_assert_not_reached ();
2906 mono_mb_emit_byte (mb, CEE_RET);
2909 #endif /* DISABLE_JIT */
2912 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2914 MonoMethodSignature *sig;
2915 MonoMethodBuilder *mb;
2920 MonoGenericContext *ctx = NULL;
2921 MonoMethod *orig_method = NULL;
2923 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2924 !strcmp (method->name, "EndInvoke"));
2927 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2929 if (method->is_inflated) {
2930 orig_method = method;
2931 ctx = &((MonoMethodInflated*)method)->context;
2932 method = ((MonoMethodInflated*)method)->declaring;
2935 sig = mono_signature_no_pinvoke (method);
2941 cache = get_cache (&method->klass->image->delegate_end_invoke_generic_cache, mono_aligned_addr_hash, NULL);
2942 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2946 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2947 (GHashFunc)mono_signature_hash,
2948 (GCompareFunc)mono_metadata_signature_equal);
2949 if ((res = mono_marshal_find_in_cache (cache, sig)))
2953 g_assert (sig->hasthis);
2955 name = mono_signature_to_name (sig, "end_invoke");
2957 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2959 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2963 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2965 mono_mb_emit_ldarg (mb, 0);
2966 mono_mb_emit_ldloc (mb, params_var);
2967 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2969 if (sig->ret->type == MONO_TYPE_VOID) {
2970 mono_mb_emit_byte (mb, CEE_POP);
2971 mono_mb_emit_byte (mb, CEE_RET);
2973 mono_mb_emit_restore_result (mb, sig->ret);
2978 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2979 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2981 res = mono_mb_create_and_cache (cache, sig,
2982 mb, sig, sig->param_count + 16);
2991 MonoMethodSignature *sig;
2993 } SignaturePointerPair;
2996 signature_pointer_pair_hash (gconstpointer data)
2998 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3000 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3004 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3006 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3007 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3011 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3013 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3015 return pair->pointer == user_data;
3019 free_signature_pointer_pair (SignaturePointerPair *pair)
3025 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3027 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3029 MonoMethodBuilder *mb;
3032 gpointer cache_key = NULL;
3033 SignaturePointerPair key;
3034 SignaturePointerPair *new_key;
3035 int local_prev, local_target;
3038 MonoClass *target_class = NULL;
3039 gboolean closed_over_null = FALSE;
3040 MonoGenericContext *ctx = NULL;
3041 MonoGenericContainer *container = NULL;
3042 MonoMethod *orig_method = NULL;
3044 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3047 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3048 !strcmp (method->name, "Invoke"));
3050 invoke_sig = sig = mono_signature_no_pinvoke (method);
3053 * If the delegate target is null, and the target method is not static, a virtual
3054 * call is made to that method with the first delegate argument as this. This is
3055 * a non-documented .NET feature.
3058 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3059 if (target_method->is_inflated) {
3060 MonoType *target_type;
3062 g_assert (method->signature->hasthis);
3063 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3064 mono_method_get_context (method));
3065 target_class = mono_class_from_mono_type (target_type);
3067 target_class = target_method->klass;
3070 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3073 if (static_method_with_first_arg_bound) {
3074 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3075 g_assert (!callvirt);
3076 invoke_sig = mono_method_signature (target_method);
3080 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3082 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3083 orig_method = method;
3084 ctx = &((MonoMethodInflated*)method)->context;
3085 method = ((MonoMethodInflated*)method)->declaring;
3087 container = mono_method_get_generic_container (method);
3089 container = method->klass->generic_container;
3090 g_assert (container);
3092 invoke_sig = sig = mono_signature_no_pinvoke (method);
3099 cache = get_cache (&method->klass->image->delegate_invoke_generic_cache, mono_aligned_addr_hash, NULL);
3100 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3103 cache_key = method->klass;
3104 } else if (static_method_with_first_arg_bound) {
3105 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3106 (GHashFunc)mono_signature_hash,
3107 (GCompareFunc)mono_metadata_signature_equal);
3109 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3111 res = mono_marshal_find_in_cache (cache, invoke_sig);
3114 cache_key = invoke_sig;
3115 } else if (callvirt) {
3116 GHashTable **cache_ptr;
3118 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3120 /* We need to cache the signature+method pair */
3121 mono_marshal_lock ();
3123 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3125 key.sig = invoke_sig;
3126 key.pointer = target_method;
3127 res = g_hash_table_lookup (cache, &key);
3128 mono_marshal_unlock ();
3132 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3133 (GHashFunc)mono_signature_hash,
3134 (GCompareFunc)mono_metadata_signature_equal);
3135 res = mono_marshal_find_in_cache (cache, sig);
3141 static_sig = signature_dup (method->klass->image, sig);
3142 static_sig->hasthis = 0;
3143 if (!static_method_with_first_arg_bound)
3144 invoke_sig = static_sig;
3146 if (static_method_with_first_arg_bound)
3147 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3148 else if (closed_over_null)
3149 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3151 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3153 name = mono_signature_to_name (invoke_sig, "invoke");
3155 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3157 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3161 /* allocate local 0 (object) */
3162 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3163 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3165 g_assert (sig->hasthis);
3169 * prev.Invoke( args .. );
3170 * return this.<target>( args .. );
3173 /* this wrapper can be used in unmanaged-managed transitions */
3174 emit_thread_interrupt_checkpoint (mb);
3176 /* get this->prev */
3177 mono_mb_emit_ldarg (mb, 0);
3178 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3179 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3180 mono_mb_emit_stloc (mb, local_prev);
3181 mono_mb_emit_ldloc (mb, local_prev);
3183 /* if prev != null */
3184 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3188 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3189 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3191 mono_mb_emit_ldloc (mb, local_prev);
3192 for (i = 0; i < sig->param_count; i++)
3193 mono_mb_emit_ldarg (mb, i + 1);
3196 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3197 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3199 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3201 if (sig->ret->type != MONO_TYPE_VOID)
3202 mono_mb_emit_byte (mb, CEE_POP);
3204 /* continued or prev == null */
3205 mono_mb_patch_branch (mb, pos0);
3207 /* get this->target */
3208 mono_mb_emit_ldarg (mb, 0);
3209 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3210 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3211 mono_mb_emit_stloc (mb, local_target);
3213 /*static methods with bound first arg can have null target and still be bound*/
3214 if (!static_method_with_first_arg_bound) {
3215 /* if target != null */
3216 mono_mb_emit_ldloc (mb, local_target);
3217 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3219 /* then call this->method_ptr nonstatic */
3222 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3224 mono_mb_emit_ldloc (mb, local_target);
3225 for (i = 0; i < sig->param_count; ++i)
3226 mono_mb_emit_ldarg (mb, i + 1);
3227 mono_mb_emit_ldarg (mb, 0);
3228 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3229 mono_mb_emit_byte (mb, CEE_LDIND_I );
3230 mono_mb_emit_op (mb, CEE_CALLI, sig);
3232 mono_mb_emit_byte (mb, CEE_RET);
3235 /* else [target == null] call this->method_ptr static */
3236 mono_mb_patch_branch (mb, pos0);
3240 if (!closed_over_null) {
3241 mono_mb_emit_ldarg (mb, 1);
3242 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3243 for (i = 1; i < sig->param_count; ++i)
3244 mono_mb_emit_ldarg (mb, i + 1);
3245 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
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 mb->skip_visibility = 1;
3269 #endif /* DISABLE_JIT */
3274 def = mono_mb_create_and_cache (cache, cache_key, mb, sig, sig->param_count + 16);
3275 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3276 } else if (callvirt) {
3277 new_key = g_new0 (SignaturePointerPair, 1);
3280 info = mono_wrapper_info_create (mb, subtype);
3282 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3286 info = mono_wrapper_info_create (mb, subtype);
3288 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3296 * the returned method invokes all methods in a multicast delegate.
3299 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3301 gboolean callvirt = FALSE;
3302 gboolean static_method_with_first_arg_bound = FALSE;
3303 MonoMethod *target_method = NULL;
3304 MonoMethodSignature *sig;
3306 sig = mono_signature_no_pinvoke (method);
3308 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3310 target_method = del->method;
3313 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3314 static_method_with_first_arg_bound = TRUE;
3315 target_method = del->method;
3318 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3322 * signature_dup_add_this:
3324 * Make a copy of @sig, adding an explicit this argument.
3326 static MonoMethodSignature*
3327 signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
3329 MonoMethodSignature *res;
3332 res = mono_metadata_signature_alloc (image, sig->param_count + 1);
3333 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
3334 res->param_count = sig->param_count + 1;
3335 res->hasthis = FALSE;
3336 for (i = sig->param_count - 1; i >= 0; i --)
3337 res->params [i + 1] = sig->params [i];
3338 res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
3344 MonoMethodSignature *ctor_sig;
3345 MonoMethodSignature *sig;
3348 /* protected by the marshal lock, contains CtorSigPair pointers */
3349 static GSList *strsig_list = NULL;
3351 static MonoMethodSignature *
3352 lookup_string_ctor_signature (MonoMethodSignature *sig)
3354 MonoMethodSignature *callsig;
3358 mono_marshal_lock ();
3360 for (item = strsig_list; item; item = item->next) {
3362 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3363 * because it is lock-free.
3365 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3370 mono_marshal_unlock ();
3374 static MonoMethodSignature *
3375 add_string_ctor_signature (MonoMethod *method)
3377 MonoMethodSignature *callsig;
3380 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3381 callsig->ret = &mono_defaults.string_class->byval_arg;
3382 cs = g_new (CtorSigPair, 1);
3384 cs->ctor_sig = mono_method_signature (method);
3386 mono_marshal_lock ();
3387 strsig_list = g_slist_prepend (strsig_list, cs);
3388 mono_marshal_unlock ();
3393 * mono_marshal_get_string_ctor_signature:
3395 * Return the modified signature used by string ctors (they return the newly created
3398 MonoMethodSignature*
3399 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3401 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3403 sig = add_string_ctor_signature (method);
3409 get_runtime_invoke_type (MonoType *t, gboolean ret)
3412 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3414 /* Can't share this with 'I' as that needs another indirection */
3415 return &mono_defaults.int_class->this_arg;
3418 if (MONO_TYPE_IS_REFERENCE (t))
3419 return &mono_defaults.object_class->byval_arg;
3422 /* The result needs to be boxed */
3427 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3430 return &mono_defaults.sbyte_class->byval_arg;
3432 return &mono_defaults.int16_class->byval_arg;
3434 return &mono_defaults.int32_class->byval_arg;
3437 return &mono_defaults.int64_class->byval_arg;
3438 case MONO_TYPE_BOOLEAN:
3439 return &mono_defaults.byte_class->byval_arg;
3440 case MONO_TYPE_CHAR:
3441 return &mono_defaults.uint16_class->byval_arg;
3444 return &mono_defaults.int_class->byval_arg;
3445 case MONO_TYPE_VALUETYPE:
3446 if (t->data.klass->enumtype) {
3447 t = mono_class_enum_basetype (t->data.klass);
3457 * mono_marshal_get_runtime_invoke_sig:
3459 * Return a common signature used for sharing runtime invoke wrappers.
3461 static MonoMethodSignature*
3462 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3464 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3467 res->generic_param_count = 0;
3468 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3469 for (i = 0; i < res->param_count; ++i)
3470 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3476 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3478 /* Can't share wrappers which return a vtype since it needs to be boxed */
3479 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))
3482 return mono_metadata_signature_equal (sig1, sig2);
3490 * Emit the call to the wrapper method from a runtime invoke wrapper.
3493 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3494 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3496 gboolean virtual, gboolean need_direct_wrapper)
3498 static MonoString *string_dummy = NULL;
3500 int *tmp_nullable_locals;
3501 gboolean void_ret = FALSE;
3503 /* to make it work with our special string constructors */
3504 if (!string_dummy) {
3505 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
3506 string_dummy = mono_string_new_wrapper ("dummy");
3510 g_assert (sig->hasthis);
3511 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3515 if (method->string_ctor) {
3516 if (mono_gc_is_moving ()) {
3517 mono_mb_emit_ptr (mb, &string_dummy);
3518 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3520 mono_mb_emit_ptr (mb, string_dummy);
3523 mono_mb_emit_ldarg (mb, 0);
3527 tmp_nullable_locals = g_new0 (int, sig->param_count);
3529 for (i = 0; i < sig->param_count; i++) {
3530 MonoType *t = sig->params [i];
3533 mono_mb_emit_ldarg (mb, 1);
3535 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3536 mono_mb_emit_byte (mb, CEE_ADD);
3540 mono_mb_emit_byte (mb, CEE_LDIND_I);
3541 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3542 * So to make this work we unbox it to a local variablee and push a reference to that.
3544 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3545 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3547 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3548 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3549 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3554 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3555 type = sig->params [i]->type;
3559 case MONO_TYPE_BOOLEAN:
3563 case MONO_TYPE_CHAR:
3572 mono_mb_emit_byte (mb, CEE_LDIND_I);
3573 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3575 case MONO_TYPE_STRING:
3576 case MONO_TYPE_CLASS:
3577 case MONO_TYPE_ARRAY:
3579 case MONO_TYPE_SZARRAY:
3580 case MONO_TYPE_OBJECT:
3581 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3583 case MONO_TYPE_GENERICINST:
3584 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3585 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3590 case MONO_TYPE_VALUETYPE:
3591 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3592 type = mono_class_enum_basetype (t->data.klass)->type;
3595 mono_mb_emit_byte (mb, CEE_LDIND_I);
3596 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3597 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3598 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3599 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3601 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3605 g_assert_not_reached ();
3610 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3611 } else if (need_direct_wrapper) {
3612 mono_mb_emit_op (mb, CEE_CALL, method);
3614 mono_mb_emit_ldarg (mb, 3);
3615 mono_mb_emit_calli (mb, callsig);
3618 if (sig->ret->byref) {
3620 g_assert_not_reached ();
3623 switch (sig->ret->type) {
3624 case MONO_TYPE_VOID:
3625 if (!method->string_ctor)
3628 case MONO_TYPE_BOOLEAN:
3629 case MONO_TYPE_CHAR:
3642 case MONO_TYPE_VALUETYPE:
3643 case MONO_TYPE_TYPEDBYREF:
3644 case MONO_TYPE_GENERICINST:
3645 /* box value types */
3646 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3648 case MONO_TYPE_STRING:
3649 case MONO_TYPE_CLASS:
3650 case MONO_TYPE_ARRAY:
3651 case MONO_TYPE_SZARRAY:
3652 case MONO_TYPE_OBJECT:
3656 /* The result is an IntPtr */
3657 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3660 g_assert_not_reached ();
3664 mono_mb_emit_stloc (mb, loc_res);
3666 /* Convert back nullable-byref arguments */
3667 for (i = 0; i < sig->param_count; i++) {
3668 MonoType *t = sig->params [i];
3671 * Box the result and put it back into the array, the caller will have
3672 * to obtain it from there.
3674 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3675 mono_mb_emit_ldarg (mb, 1);
3676 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3677 mono_mb_emit_byte (mb, CEE_ADD);
3679 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3680 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3682 mono_mb_emit_byte (mb, CEE_STIND_REF);
3686 g_free (tmp_nullable_locals);
3690 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
3691 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3692 gboolean virtual, gboolean need_direct_wrapper)
3695 MonoExceptionClause *clause;
3696 int loc_res, loc_exc;
3698 /* The wrapper looks like this:
3704 * } catch (Exception e) {
3712 /* allocate local 0 (object) tmp */
3713 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3714 /* allocate local 1 (object) exc */
3715 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3717 /* *exc is assumed to be initialized to NULL by the caller */
3719 mono_mb_emit_byte (mb, CEE_LDARG_2);
3720 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3725 labels [1] = mono_mb_get_label (mb);
3726 emit_thread_force_interrupt_checkpoint (mb);
3727 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3729 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3731 /* Add a try clause around the call */
3732 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
3733 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3734 clause->data.catch_class = mono_defaults.exception_class;
3735 clause->try_offset = labels [1];
3736 clause->try_len = mono_mb_get_label (mb) - labels [1];
3738 clause->handler_offset = mono_mb_get_label (mb);
3741 mono_mb_emit_stloc (mb, loc_exc);
3742 mono_mb_emit_byte (mb, CEE_LDARG_2);
3743 mono_mb_emit_ldloc (mb, loc_exc);
3744 mono_mb_emit_byte (mb, CEE_STIND_REF);
3746 mono_mb_emit_branch (mb, CEE_LEAVE);
3748 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3750 mono_mb_set_clauses (mb, 1, clause);
3752 mono_mb_patch_branch (mb, labels [2]);
3753 mono_mb_emit_ldloc (mb, loc_res);
3754 mono_mb_emit_byte (mb, CEE_RET);
3759 mono_mb_patch_branch (mb, labels [0]);
3760 emit_thread_force_interrupt_checkpoint (mb);
3761 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3763 mono_mb_emit_ldloc (mb, 0);
3764 mono_mb_emit_byte (mb, CEE_RET);
3769 * generates IL code for the runtime invoke function
3770 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
3772 * we also catch exceptions if exc != null
3773 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3774 * it means that the compiled code for METHOD does not have to be looked up
3775 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3776 * its METHOD argument.
3779 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
3781 MonoMethodSignature *sig, *csig, *callsig;
3782 MonoMethodBuilder *mb;
3783 GHashTable *cache = NULL;
3784 MonoClass *target_klass;
3785 MonoMethod *res = NULL;
3786 static MonoMethodSignature *cctor_signature = NULL;
3787 static MonoMethodSignature *finalize_signature = NULL;
3789 const char *param_names [16];
3790 gboolean need_direct_wrapper = FALSE;
3795 if (!cctor_signature) {
3796 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3797 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3799 if (!finalize_signature) {
3800 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3801 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3802 finalize_signature->hasthis = 1;
3806 need_direct_wrapper = TRUE;
3809 * Use a separate cache indexed by methods to speed things up and to avoid the
3810 * boundless mempool growth caused by the signature_dup stuff below.
3813 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3815 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3816 res = mono_marshal_find_in_cache (cache, method);
3820 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3821 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3823 * Array Get/Set/Address methods. The JIT implements them using inline code
3824 * so we need to create an invoke wrapper which calls the method directly.
3826 need_direct_wrapper = TRUE;
3829 if (method->string_ctor) {
3830 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3832 callsig = add_string_ctor_signature (method);
3833 /* Can't share this as we push a string as this */
3834 need_direct_wrapper = TRUE;
3836 if (method_is_dynamic (method))
3837 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3839 callsig = mono_method_signature (method);
3842 target_klass = get_wrapper_target_class (method->klass->image);
3844 /* Try to share wrappers for non-corlib methods with simple signatures */
3845 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3846 callsig = cctor_signature;
3847 target_klass = mono_defaults.object_class;
3848 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3849 callsig = finalize_signature;
3850 target_klass = mono_defaults.object_class;
3853 if (need_direct_wrapper) {
3854 /* Already searched at the start */
3856 MonoMethodSignature *tmp_sig;
3858 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3860 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3861 /* These have a different csig */
3862 cache = get_cache (&target_klass->image->runtime_invoke_vtype_cache,
3863 (GHashFunc)mono_signature_hash,
3864 (GCompareFunc)runtime_invoke_signature_equal);
3866 cache = get_cache (&target_klass->image->runtime_invoke_cache,
3867 (GHashFunc)mono_signature_hash,
3868 (GCompareFunc)runtime_invoke_signature_equal);
3870 /* from mono_marshal_find_in_cache */
3871 mono_marshal_lock ();
3872 res = g_hash_table_lookup (cache, callsig);
3873 mono_marshal_unlock ();
3880 /* Make a copy of the signature from the image mempool */
3882 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3886 sig = mono_method_signature (method);
3888 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3890 csig->ret = &mono_defaults.object_class->byval_arg;
3891 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3892 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3894 csig->params [0] = &mono_defaults.object_class->byval_arg;
3895 csig->params [1] = &mono_defaults.int_class->byval_arg;
3896 csig->params [2] = &mono_defaults.int_class->byval_arg;
3897 csig->params [3] = &mono_defaults.int_class->byval_arg;
3900 /* This is called from runtime code so it has to be cdecl */
3901 csig->call_convention = MONO_CALL_C;
3904 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
3905 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3909 param_names [0] = "this";
3910 param_names [1] = "params";
3911 param_names [2] = "exc";
3912 param_names [3] = "method";
3913 mono_mb_set_param_names (mb, param_names);
3915 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
3918 if (need_direct_wrapper) {
3920 mb->skip_visibility = 1;
3922 info = mono_wrapper_info_create (mb, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
3923 info->d.runtime_invoke.method = method;
3924 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
3926 /* taken from mono_mb_create_and_cache */
3927 mono_marshal_lock ();
3928 res = g_hash_table_lookup (cache, callsig);
3929 mono_marshal_unlock ();
3931 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
3932 info->d.runtime_invoke.sig = callsig;
3934 /* Somebody may have created it before us */
3937 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
3939 mono_marshal_lock ();
3940 res = g_hash_table_lookup (cache, callsig);
3943 g_hash_table_insert (cache, callsig, res);
3944 /* Can't insert it into wrapper_hash since the key is a signature */
3945 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
3947 mono_free_method (newm);
3949 mono_marshal_unlock ();
3952 /* end mono_mb_create_and_cache */
3961 * mono_marshal_get_runtime_invoke_dynamic:
3963 * Return a method which can be used to invoke managed methods from native code
3965 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
3966 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
3967 * ARGS should point to an architecture specific structure containing
3968 * the arguments and space for the return value.
3969 * The other arguments are the same as for runtime_invoke (), except that
3970 * ARGS should contain the this argument too.
3971 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
3972 * is only one copy of it, which is useful in full-aot.
3973 * The wrapper info for the wrapper is a WrapperInfo structure.
3976 mono_marshal_get_runtime_invoke_dynamic (void)
3978 static MonoMethod *method;
3979 MonoMethodSignature *csig;
3980 MonoExceptionClause *clause;
3981 MonoMethodBuilder *mb;
3989 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
3991 csig->ret = &mono_defaults.void_class->byval_arg;
3992 csig->params [0] = &mono_defaults.int_class->byval_arg;
3993 csig->params [1] = &mono_defaults.int_class->byval_arg;
3994 csig->params [2] = &mono_defaults.int_class->byval_arg;
3995 csig->params [3] = &mono_defaults.int_class->byval_arg;
3997 name = g_strdup ("runtime_invoke_dynamic");
3998 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4002 /* allocate local 0 (object) tmp */
4003 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4004 /* allocate local 1 (object) exc */
4005 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4007 /* cond set *exc to null */
4008 mono_mb_emit_byte (mb, CEE_LDARG_1);
4009 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4010 mono_mb_emit_byte (mb, 3);
4011 mono_mb_emit_byte (mb, CEE_LDARG_1);
4012 mono_mb_emit_byte (mb, CEE_LDNULL);
4013 mono_mb_emit_byte (mb, CEE_STIND_REF);
4015 emit_thread_force_interrupt_checkpoint (mb);
4017 mono_mb_emit_byte (mb, CEE_LDARG_0);
4018 mono_mb_emit_byte (mb, CEE_LDARG_2);
4019 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4020 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4022 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4024 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4025 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4026 clause->try_len = mono_mb_get_label (mb);
4029 clause->data.filter_offset = mono_mb_get_label (mb);
4031 mono_mb_emit_byte (mb, CEE_POP);
4032 mono_mb_emit_byte (mb, CEE_LDARG_1);
4033 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4034 mono_mb_emit_byte (mb, CEE_PREFIX1);
4035 mono_mb_emit_byte (mb, CEE_CGT_UN);
4036 mono_mb_emit_byte (mb, CEE_PREFIX1);
4037 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4039 clause->handler_offset = mono_mb_get_label (mb);
4042 /* store exception */
4043 mono_mb_emit_stloc (mb, 1);
4045 mono_mb_emit_byte (mb, CEE_LDARG_1);
4046 mono_mb_emit_ldloc (mb, 1);
4047 mono_mb_emit_byte (mb, CEE_STIND_REF);
4049 mono_mb_emit_byte (mb, CEE_LDNULL);
4050 mono_mb_emit_stloc (mb, 0);
4052 /* Check for the abort exception */
4053 mono_mb_emit_ldloc (mb, 1);
4054 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4055 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4057 /* Delay the abort exception */
4058 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4060 mono_mb_patch_short_branch (mb, posna);
4061 mono_mb_emit_branch (mb, CEE_LEAVE);
4063 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4065 mono_mb_set_clauses (mb, 1, clause);
4068 mono_mb_patch_branch (mb, pos);
4069 //mono_mb_emit_ldloc (mb, 0);
4070 mono_mb_emit_byte (mb, CEE_RET);
4071 #endif /* DISABLE_JIT */
4073 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4075 mono_marshal_lock ();
4076 /* double-checked locking */
4078 method = mono_mb_create (mb, csig, 16, info);
4080 mono_marshal_unlock ();
4089 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4091 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4092 klass->name_space, klass->name);
4094 mono_mb_emit_exception_marshal_directive (mb, msg);
4099 * generates IL code for the icall wrapper (the generated method
4100 * calls the unmanaged code in func)
4101 * The wrapper info for the wrapper is a WrapperInfo structure.
4104 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4106 MonoMethodSignature *csig, *csig2;
4107 MonoMethodBuilder *mb;
4112 g_assert (sig->pinvoke);
4114 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4116 mb->method->save_lmf = 1;
4118 /* Add an explicit this argument */
4120 csig2 = signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4122 csig2 = signature_dup (mono_defaults.corlib, sig);
4126 mono_mb_emit_byte (mb, CEE_LDARG_0);
4128 for (i = 0; i < sig->param_count; i++)
4129 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4131 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4132 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4133 mono_mb_emit_calli (mb, csig2);
4134 if (check_exceptions)
4135 emit_thread_interrupt_checkpoint (mb);
4136 mono_mb_emit_byte (mb, CEE_RET);
4139 csig = signature_dup (mono_defaults.corlib, sig);
4141 if (csig->call_convention == MONO_CALL_VARARG)
4142 csig->call_convention = 0;
4144 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4145 info->d.icall.func = (gpointer)func;
4146 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4153 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4154 MonoMarshalSpec *spec,
4155 int conv_arg, MonoType **conv_arg_type,
4156 MarshalAction action)
4159 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4160 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4165 static MonoClass *ICustomMarshaler = NULL;
4166 static MonoMethod *cleanup_native, *cleanup_managed;
4167 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4168 MonoMethod *get_instance = NULL;
4169 MonoMethodBuilder *mb = m->mb;
4170 char *exception_msg = NULL;
4174 if (!ICustomMarshaler) {
4175 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4177 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4178 goto handle_exception;
4181 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4182 g_assert (cleanup_native);
4183 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4184 g_assert (cleanup_managed);
4185 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4186 g_assert (marshal_managed_to_native);
4187 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4188 g_assert (marshal_native_to_managed);
4190 mono_memory_barrier ();
4191 ICustomMarshaler = klass;
4194 if (spec->data.custom_data.image)
4195 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4197 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4198 g_assert (mtype != NULL);
4199 mklass = mono_class_from_mono_type (mtype);
4200 g_assert (mklass != NULL);
4202 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4203 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4205 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4207 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4208 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4209 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4210 (get_sig->params [0]->type != MONO_TYPE_STRING))
4211 get_instance = NULL;
4215 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);
4218 /* Throw exception and emit compensation code if neccesary */
4219 if (exception_msg) {
4221 case MARSHAL_ACTION_CONV_IN:
4222 case MARSHAL_ACTION_CONV_RESULT:
4223 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4224 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4225 mono_mb_emit_byte (mb, CEE_POP);
4227 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4228 g_free (exception_msg);
4231 case MARSHAL_ACTION_PUSH:
4232 mono_mb_emit_byte (mb, CEE_LDNULL);
4240 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4241 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4244 case MARSHAL_ACTION_CONV_IN:
4246 case MONO_TYPE_CLASS:
4247 case MONO_TYPE_OBJECT:
4248 case MONO_TYPE_STRING:
4249 case MONO_TYPE_ARRAY:
4250 case MONO_TYPE_SZARRAY:
4251 case MONO_TYPE_VALUETYPE:
4255 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4256 g_assert_not_reached ();
4260 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4262 mono_mb_emit_byte (mb, CEE_LDNULL);
4263 mono_mb_emit_stloc (mb, conv_arg);
4265 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4268 /* Minic MS.NET behavior */
4269 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4272 /* Check for null */
4273 mono_mb_emit_ldarg (mb, argnum);
4275 mono_mb_emit_byte (mb, CEE_LDIND_I);
4276 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4278 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4280 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4282 mono_mb_emit_ldarg (mb, argnum);
4284 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4286 if (t->type == MONO_TYPE_VALUETYPE) {
4288 * Since we can't determine the type of the argument, we
4289 * will assume the unmanaged function takes a pointer.
4291 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4293 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4296 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4297 mono_mb_emit_stloc (mb, conv_arg);
4299 mono_mb_patch_branch (mb, pos2);
4302 case MARSHAL_ACTION_CONV_OUT:
4303 /* Check for null */
4304 mono_mb_emit_ldloc (mb, conv_arg);
4305 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4308 mono_mb_emit_ldarg (mb, argnum);
4310 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4312 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4314 mono_mb_emit_ldloc (mb, conv_arg);
4315 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4316 mono_mb_emit_byte (mb, CEE_STIND_REF);
4317 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4318 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4320 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4322 mono_mb_emit_ldloc (mb, conv_arg);
4323 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4325 /* We have nowhere to store the result */
4326 mono_mb_emit_byte (mb, CEE_POP);
4329 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4331 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4333 mono_mb_emit_ldloc (mb, conv_arg);
4335 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4337 mono_mb_patch_branch (mb, pos2);
4340 case MARSHAL_ACTION_PUSH:
4342 mono_mb_emit_ldloc_addr (mb, conv_arg);
4344 mono_mb_emit_ldloc (mb, conv_arg);
4347 case MARSHAL_ACTION_CONV_RESULT:
4348 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4350 mono_mb_emit_stloc (mb, 3);
4352 mono_mb_emit_ldloc (mb, 3);
4353 mono_mb_emit_stloc (mb, loc1);
4355 /* Check for null */
4356 mono_mb_emit_ldloc (mb, 3);
4357 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4359 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4361 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4362 mono_mb_emit_byte (mb, CEE_DUP);
4364 mono_mb_emit_ldloc (mb, 3);
4365 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4366 mono_mb_emit_stloc (mb, 3);
4368 mono_mb_emit_ldloc (mb, loc1);
4369 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4371 mono_mb_patch_branch (mb, pos2);
4374 case MARSHAL_ACTION_MANAGED_CONV_IN:
4375 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4377 mono_mb_emit_byte (mb, CEE_LDNULL);
4378 mono_mb_emit_stloc (mb, conv_arg);
4380 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4383 /* Check for null */
4384 mono_mb_emit_ldarg (mb, argnum);
4386 mono_mb_emit_byte (mb, CEE_LDIND_I);
4387 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4389 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4390 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4392 mono_mb_emit_ldarg (mb, argnum);
4394 mono_mb_emit_byte (mb, CEE_LDIND_I);
4396 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4397 mono_mb_emit_stloc (mb, conv_arg);
4399 mono_mb_patch_branch (mb, pos2);
4402 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4403 g_assert (!t->byref);
4405 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4407 mono_mb_emit_stloc (mb, 3);
4409 mono_mb_emit_ldloc (mb, 3);
4410 mono_mb_emit_stloc (mb, loc1);
4412 /* Check for null */
4413 mono_mb_emit_ldloc (mb, 3);
4414 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4416 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4417 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4418 mono_mb_emit_byte (mb, CEE_DUP);
4420 mono_mb_emit_ldloc (mb, 3);
4421 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4422 mono_mb_emit_stloc (mb, 3);
4424 mono_mb_emit_ldloc (mb, loc1);
4425 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4427 mono_mb_patch_branch (mb, pos2);
4430 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4432 /* Check for null */
4433 mono_mb_emit_ldloc (mb, conv_arg);
4434 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4437 mono_mb_emit_ldarg (mb, argnum);
4439 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4441 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4443 mono_mb_emit_ldloc (mb, conv_arg);
4444 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4445 mono_mb_emit_byte (mb, CEE_STIND_I);
4448 /* Call CleanUpManagedData */
4449 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4451 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4453 mono_mb_emit_ldloc (mb, conv_arg);
4454 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4456 mono_mb_patch_branch (mb, pos2);
4460 g_assert_not_reached ();
4468 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4469 MonoMarshalSpec *spec,
4470 int conv_arg, MonoType **conv_arg_type,
4471 MarshalAction action)
4474 MonoMethodBuilder *mb = m->mb;
4477 case MARSHAL_ACTION_CONV_IN: {
4478 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4480 g_assert (t->type == MONO_TYPE_OBJECT);
4481 g_assert (!t->byref);
4483 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4484 mono_mb_emit_ldarg (mb, argnum);
4485 mono_mb_emit_icon (mb, encoding);
4486 mono_mb_emit_icon (mb, t->attrs);
4487 mono_mb_emit_icall (mb, mono_marshal_asany);
4488 mono_mb_emit_stloc (mb, conv_arg);
4492 case MARSHAL_ACTION_PUSH:
4493 mono_mb_emit_ldloc (mb, conv_arg);
4496 case MARSHAL_ACTION_CONV_OUT: {
4497 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4499 mono_mb_emit_ldarg (mb, argnum);
4500 mono_mb_emit_ldloc (mb, conv_arg);
4501 mono_mb_emit_icon (mb, encoding);
4502 mono_mb_emit_icon (mb, t->attrs);
4503 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4508 g_assert_not_reached ();
4515 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4516 MonoMarshalSpec *spec,
4517 int conv_arg, MonoType **conv_arg_type,
4518 MarshalAction action)
4521 MonoMethodBuilder *mb = m->mb;
4522 MonoClass *klass, *date_time_class;
4525 klass = mono_class_from_mono_type (t);
4527 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
4530 case MARSHAL_ACTION_CONV_IN:
4531 if (klass == date_time_class) {
4532 /* Convert it to an OLE DATE type */
4533 static MonoMethod *to_oadate;
4536 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4537 g_assert (to_oadate);
4539 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4542 mono_mb_emit_ldarg (mb, argnum);
4543 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4546 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4548 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4550 mono_mb_emit_ldarg_addr (mb, argnum);
4551 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4552 mono_mb_emit_stloc (mb, conv_arg);
4556 mono_mb_patch_branch (mb, pos);
4560 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4561 klass->blittable || klass->enumtype)
4564 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4566 /* store the address of the source into local variable 0 */
4568 mono_mb_emit_ldarg (mb, argnum);
4570 mono_mb_emit_ldarg_addr (mb, argnum);
4572 mono_mb_emit_stloc (mb, 0);
4574 /* allocate space for the native struct and
4575 * store the address into local variable 1 (dest) */
4576 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4577 mono_mb_emit_byte (mb, CEE_PREFIX1);
4578 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4579 mono_mb_emit_stloc (mb, conv_arg);
4582 mono_mb_emit_ldloc (mb, 0);
4583 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4586 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4588 mono_mb_emit_ldloc (mb, conv_arg);
4589 mono_mb_emit_stloc (mb, 1);
4591 /* emit valuetype conversion code */
4592 emit_struct_conv (mb, klass, FALSE);
4596 mono_mb_patch_branch (mb, pos);
4599 case MARSHAL_ACTION_PUSH:
4600 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4602 g_assert (!t->byref);
4604 /* Have to change the signature since the vtype is passed byref */
4605 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4607 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4608 klass->blittable || klass->enumtype)
4609 mono_mb_emit_ldarg_addr (mb, argnum);
4611 mono_mb_emit_ldloc (mb, conv_arg);
4615 if (klass == date_time_class) {
4617 mono_mb_emit_ldloc_addr (mb, conv_arg);
4619 mono_mb_emit_ldloc (mb, conv_arg);
4623 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4624 klass->blittable || klass->enumtype) {
4625 mono_mb_emit_ldarg (mb, argnum);
4628 mono_mb_emit_ldloc (mb, conv_arg);
4630 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4631 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4635 case MARSHAL_ACTION_CONV_OUT:
4636 if (klass == date_time_class) {
4637 /* Convert from an OLE DATE type */
4638 static MonoMethod *from_oadate;
4643 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4645 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4646 g_assert (from_oadate);
4648 mono_mb_emit_ldarg (mb, argnum);
4649 mono_mb_emit_ldloc (mb, conv_arg);
4650 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4651 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4656 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4657 klass->blittable || klass->enumtype)
4661 /* dst = argument */
4662 mono_mb_emit_ldarg (mb, argnum);
4663 mono_mb_emit_stloc (mb, 1);
4665 mono_mb_emit_ldloc (mb, 1);
4666 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4668 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4669 /* src = tmp_locals [i] */
4670 mono_mb_emit_ldloc (mb, conv_arg);
4671 mono_mb_emit_stloc (mb, 0);
4673 /* emit valuetype conversion code */
4674 emit_struct_conv (mb, klass, TRUE);
4678 emit_struct_free (mb, klass, conv_arg);
4681 mono_mb_patch_branch (mb, pos);
4684 case MARSHAL_ACTION_CONV_RESULT:
4685 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4687 mono_mb_emit_stloc (mb, 3);
4691 /* load pointer to returned value type */
4692 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4693 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4694 /* store the address of the source into local variable 0 */
4695 mono_mb_emit_stloc (mb, 0);
4697 mono_mb_emit_ldloc_addr (mb, 3);
4698 mono_mb_emit_stloc (mb, 1);
4700 /* emit valuetype conversion code */
4701 emit_struct_conv (mb, klass, TRUE);
4704 case MARSHAL_ACTION_MANAGED_CONV_IN:
4705 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4706 klass->blittable || klass->enumtype) {
4711 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4713 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4717 mono_mb_emit_ldarg (mb, argnum);
4719 mono_mb_emit_ldarg_addr (mb, argnum);
4720 mono_mb_emit_stloc (mb, 0);
4723 mono_mb_emit_ldloc (mb, 0);
4724 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4727 mono_mb_emit_ldloc_addr (mb, conv_arg);
4728 mono_mb_emit_stloc (mb, 1);
4730 /* emit valuetype conversion code */
4731 emit_struct_conv (mb, klass, TRUE);
4734 mono_mb_patch_branch (mb, pos);
4737 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4738 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4739 klass->blittable || klass->enumtype) {
4743 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4746 /* Check for null */
4747 mono_mb_emit_ldarg (mb, argnum);
4748 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4751 mono_mb_emit_ldloc_addr (mb, conv_arg);
4752 mono_mb_emit_stloc (mb, 0);
4755 mono_mb_emit_ldarg (mb, argnum);
4756 mono_mb_emit_stloc (mb, 1);
4758 /* emit valuetype conversion code */
4759 emit_struct_conv (mb, klass, FALSE);
4761 mono_mb_patch_branch (mb, pos2);
4764 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4765 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4766 klass->blittable || klass->enumtype) {
4767 mono_mb_emit_stloc (mb, 3);
4772 /* load pointer to returned value type */
4773 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4774 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4776 /* store the address of the source into local variable 0 */
4777 mono_mb_emit_stloc (mb, 0);
4778 /* allocate space for the native struct and
4779 * store the address into dst_ptr */
4780 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4781 m->retobj_class = klass;
4782 g_assert (m->retobj_var);
4783 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4784 mono_mb_emit_byte (mb, CEE_CONV_I);
4785 mono_mb_emit_icall (mb, mono_marshal_alloc);
4786 mono_mb_emit_stloc (mb, 1);
4787 mono_mb_emit_ldloc (mb, 1);
4788 mono_mb_emit_stloc (mb, m->retobj_var);
4790 /* emit valuetype conversion code */
4791 emit_struct_conv (mb, klass, FALSE);
4795 g_assert_not_reached ();
4802 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4803 MonoMarshalSpec *spec,
4804 int conv_arg, MonoType **conv_arg_type,
4805 MarshalAction action)
4809 case MARSHAL_ACTION_CONV_IN:
4810 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4812 case MARSHAL_ACTION_MANAGED_CONV_IN:
4813 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4817 MonoMethodBuilder *mb = m->mb;
4818 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4819 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4823 case MARSHAL_ACTION_CONV_IN:
4824 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4825 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4828 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4831 mono_mb_emit_ldarg (mb, argnum);
4832 mono_mb_emit_byte (mb, CEE_LDIND_I);
4834 mono_mb_emit_ldarg (mb, argnum);
4838 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4839 mono_mb_emit_exception_marshal_directive (mb, msg);
4841 mono_mb_emit_icall (mb, conv_to_icall (conv));
4843 mono_mb_emit_stloc (mb, conv_arg);
4847 case MARSHAL_ACTION_CONV_OUT:
4848 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4850 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4851 mono_mb_emit_exception_marshal_directive (mb, msg);
4855 if (encoding == MONO_NATIVE_VBBYREFSTR) {
4856 static MonoMethod *m;
4859 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
4864 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
4865 mono_mb_emit_exception_marshal_directive (mb, msg);
4870 * Have to allocate a new string with the same length as the original, and
4871 * copy the contents of the buffer pointed to by CONV_ARG into it.
4873 g_assert (t->byref);
4874 mono_mb_emit_ldarg (mb, argnum);
4875 mono_mb_emit_ldloc (mb, conv_arg);
4876 mono_mb_emit_ldarg (mb, argnum);
4877 mono_mb_emit_byte (mb, CEE_LDIND_I);
4878 mono_mb_emit_managed_call (mb, m, NULL);
4879 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
4880 mono_mb_emit_byte (mb, CEE_STIND_REF);
4881 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
4882 mono_mb_emit_ldarg (mb, argnum);
4883 mono_mb_emit_ldloc (mb, conv_arg);
4884 mono_mb_emit_icall (mb, conv_to_icall (conv));
4885 mono_mb_emit_byte (mb, CEE_STIND_REF);
4890 mono_mb_emit_ldloc (mb, conv_arg);
4891 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4892 mono_mb_emit_icall (mb, mono_free_bstr);
4894 mono_mb_emit_icall (mb, mono_marshal_free);
4898 case MARSHAL_ACTION_PUSH:
4899 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
4900 mono_mb_emit_ldloc_addr (mb, conv_arg);
4902 mono_mb_emit_ldloc (mb, conv_arg);
4905 case MARSHAL_ACTION_CONV_RESULT:
4906 mono_mb_emit_stloc (mb, 0);
4908 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4910 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4911 mono_mb_emit_exception_marshal_directive (mb, msg);
4915 mono_mb_emit_ldloc (mb, 0);
4916 mono_mb_emit_icall (mb, conv_to_icall (conv));
4917 mono_mb_emit_stloc (mb, 3);
4919 /* free the string */
4920 mono_mb_emit_ldloc (mb, 0);
4921 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4922 mono_mb_emit_icall (mb, mono_free_bstr);
4924 mono_mb_emit_icall (mb, mono_marshal_free);
4927 case MARSHAL_ACTION_MANAGED_CONV_IN:
4928 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4930 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4933 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4937 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4939 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4940 mono_mb_emit_exception_marshal_directive (mb, msg);
4944 mono_mb_emit_ldarg (mb, argnum);
4946 mono_mb_emit_byte (mb, CEE_LDIND_I);
4947 mono_mb_emit_icall (mb, conv_to_icall (conv));
4948 mono_mb_emit_stloc (mb, conv_arg);
4951 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4954 mono_mb_emit_ldarg (mb, argnum);
4955 mono_mb_emit_ldloc (mb, conv_arg);
4956 mono_mb_emit_icall (mb, conv_to_icall (conv));
4957 mono_mb_emit_byte (mb, CEE_STIND_I);
4962 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4963 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
4964 /* We need to make a copy so the caller is able to free it */
4965 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
4967 mono_mb_emit_icall (mb, conv_to_icall (conv));
4968 mono_mb_emit_stloc (mb, 3);
4972 g_assert_not_reached ();
4980 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
4981 MonoMarshalSpec *spec, int conv_arg,
4982 MonoType **conv_arg_type, MarshalAction action)
4985 if (action == MARSHAL_ACTION_CONV_IN)
4986 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4988 MonoMethodBuilder *mb = m->mb;
4991 case MARSHAL_ACTION_CONV_IN: {
4992 MonoType *intptr_type;
4993 int dar_release_slot, pos;
4995 intptr_type = &mono_defaults.int_class->byval_arg;
4996 conv_arg = mono_mb_add_local (mb, intptr_type);
4997 *conv_arg_type = intptr_type;
4999 if (!sh_dangerous_add_ref)
5000 init_safe_handle ();
5002 mono_mb_emit_ldarg (mb, argnum);
5003 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5004 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5006 mono_mb_patch_branch (mb, pos);
5009 * My tests in show that ref SafeHandles are not really
5010 * passed as ref objects. Instead a NULL is passed as the
5013 mono_mb_emit_icon (mb, 0);
5014 mono_mb_emit_stloc (mb, conv_arg);
5018 /* Create local to hold the ref parameter to DangerousAddRef */
5019 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5021 /* set release = false; */
5022 mono_mb_emit_icon (mb, 0);
5023 mono_mb_emit_stloc (mb, dar_release_slot);
5025 /* safehandle.DangerousAddRef (ref release) */
5026 mono_mb_emit_ldarg (mb, argnum);
5027 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5028 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5030 /* Pull the handle field from SafeHandle */
5031 mono_mb_emit_ldarg (mb, argnum);
5032 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5033 mono_mb_emit_byte (mb, CEE_LDIND_I);
5034 mono_mb_emit_stloc (mb, conv_arg);
5039 case MARSHAL_ACTION_PUSH:
5041 mono_mb_emit_ldloc_addr (mb, conv_arg);
5043 mono_mb_emit_ldloc (mb, conv_arg);
5046 case MARSHAL_ACTION_CONV_OUT: {
5047 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5048 int dar_release_slot = conv_arg + 1;
5051 if (!sh_dangerous_release)
5052 init_safe_handle ();
5058 * My tests indicate that ref SafeHandles parameters are not actually
5059 * passed by ref, but instead a new Handle is created regardless of
5060 * whether a change happens in the unmanaged side.
5062 * Also, the Handle is created before calling into unmanaged code,
5063 * but we do not support that mechanism (getting to the original
5064 * handle) and it makes no difference where we create this
5066 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5068 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5071 /* refval = new SafeHandleDerived ()*/
5072 mono_mb_emit_ldarg (mb, argnum);
5073 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5074 mono_mb_emit_byte (mb, CEE_STIND_REF);
5076 /* refval.handle = returned_handle */
5077 mono_mb_emit_ldarg (mb, argnum);
5078 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5079 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5080 mono_mb_emit_ldloc (mb, conv_arg);
5081 mono_mb_emit_byte (mb, CEE_STIND_I);
5083 mono_mb_emit_ldloc (mb, dar_release_slot);
5084 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5085 mono_mb_emit_ldarg (mb, argnum);
5086 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5087 mono_mb_patch_branch (mb, label_next);
5092 case MARSHAL_ACTION_CONV_RESULT: {
5093 MonoMethod *ctor = NULL;
5094 int intptr_handle_slot;
5096 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5097 mono_mb_emit_byte (mb, CEE_POP);
5098 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5102 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5104 mono_mb_emit_byte (mb, CEE_POP);
5105 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5108 /* Store the IntPtr results into a local */
5109 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5110 mono_mb_emit_stloc (mb, intptr_handle_slot);
5112 /* Create return value */
5113 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5114 mono_mb_emit_stloc (mb, 3);
5116 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5117 mono_mb_emit_ldloc (mb, 3);
5118 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5119 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5120 mono_mb_emit_byte (mb, CEE_STIND_I);
5124 case MARSHAL_ACTION_MANAGED_CONV_IN:
5125 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5128 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5129 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5132 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5133 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5136 printf ("Unhandled case for MarshalAction: %d\n", action);
5144 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5145 MonoMarshalSpec *spec, int conv_arg,
5146 MonoType **conv_arg_type, MarshalAction action)
5149 if (action == MARSHAL_ACTION_CONV_IN)
5150 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5152 MonoMethodBuilder *mb = m->mb;
5155 case MARSHAL_ACTION_CONV_IN: {
5156 MonoType *intptr_type;
5158 intptr_type = &mono_defaults.int_class->byval_arg;
5159 conv_arg = mono_mb_add_local (mb, intptr_type);
5160 *conv_arg_type = intptr_type;
5163 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5164 mono_mb_emit_exception_marshal_directive (mb, msg);
5167 mono_mb_emit_ldarg_addr (mb, argnum);
5168 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5169 mono_mb_emit_byte (mb, CEE_ADD);
5170 mono_mb_emit_byte (mb, CEE_LDIND_I);
5171 mono_mb_emit_stloc (mb, conv_arg);
5175 case MARSHAL_ACTION_PUSH:
5176 mono_mb_emit_ldloc (mb, conv_arg);
5179 case MARSHAL_ACTION_CONV_OUT: {
5180 /* no resource release required */
5184 case MARSHAL_ACTION_CONV_RESULT: {
5185 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5186 mono_mb_emit_exception_marshal_directive (mb, msg);
5190 case MARSHAL_ACTION_MANAGED_CONV_IN:
5191 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5194 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5195 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5198 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5199 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5202 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5210 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5211 MonoMarshalSpec *spec,
5212 int conv_arg, MonoType **conv_arg_type,
5213 MarshalAction action)
5216 if (action == MARSHAL_ACTION_CONV_IN)
5217 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5219 MonoMethodBuilder *mb = m->mb;
5220 MonoClass *klass = mono_class_from_mono_type (t);
5224 case MARSHAL_ACTION_CONV_IN:
5225 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5226 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5228 m->orig_conv_args [argnum] = 0;
5230 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5231 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5232 mono_mb_emit_exception_marshal_directive (mb, msg);
5236 if (klass->delegate) {
5238 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5239 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5240 mono_mb_emit_exception_marshal_directive (mb, msg);
5242 mono_mb_emit_byte (mb, CEE_LDNULL);
5243 mono_mb_emit_stloc (mb, conv_arg);
5245 mono_mb_emit_ldarg (mb, argnum);
5246 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5247 mono_mb_emit_stloc (mb, conv_arg);
5249 } else if (klass == mono_defaults.stringbuilder_class) {
5250 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5251 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5255 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5256 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5257 mono_mb_emit_exception_marshal_directive (mb, msg);
5263 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5267 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5268 mono_mb_emit_exception_marshal_directive (mb, msg);
5272 mono_mb_emit_ldarg (mb, argnum);
5274 mono_mb_emit_byte (mb, CEE_LDIND_I);
5276 mono_mb_emit_icall (mb, conv_to_icall (conv));
5277 mono_mb_emit_stloc (mb, conv_arg);
5278 } else if (klass->blittable) {
5279 mono_mb_emit_byte (mb, CEE_LDNULL);
5280 mono_mb_emit_stloc (mb, conv_arg);
5282 mono_mb_emit_ldarg (mb, argnum);
5283 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5285 mono_mb_emit_ldarg (mb, argnum);
5286 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5287 mono_mb_emit_stloc (mb, conv_arg);
5289 mono_mb_patch_branch (mb, pos);
5292 mono_mb_emit_byte (mb, CEE_LDNULL);
5293 mono_mb_emit_stloc (mb, conv_arg);
5296 /* we dont need any conversions for out parameters */
5297 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5300 mono_mb_emit_ldarg (mb, argnum);
5301 mono_mb_emit_byte (mb, CEE_LDIND_I);
5304 mono_mb_emit_ldarg (mb, argnum);
5305 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5306 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5309 /* store the address of the source into local variable 0 */
5310 mono_mb_emit_stloc (mb, 0);
5311 mono_mb_emit_ldloc (mb, 0);
5312 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5314 /* allocate space for the native struct and store the address */
5315 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5316 mono_mb_emit_byte (mb, CEE_PREFIX1);
5317 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5318 mono_mb_emit_stloc (mb, conv_arg);
5321 /* Need to store the original buffer so we can free it later */
5322 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5323 mono_mb_emit_ldloc (mb, conv_arg);
5324 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5327 /* set the src_ptr */
5328 mono_mb_emit_ldloc (mb, 0);
5329 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5330 mono_mb_emit_stloc (mb, 0);
5333 mono_mb_emit_ldloc (mb, conv_arg);
5334 mono_mb_emit_stloc (mb, 1);
5336 /* emit valuetype conversion code */
5337 emit_struct_conv (mb, klass, FALSE);
5339 mono_mb_patch_branch (mb, pos);
5343 case MARSHAL_ACTION_CONV_OUT:
5344 if (klass == mono_defaults.stringbuilder_class) {
5346 MonoMarshalNative encoding;
5347 MonoMarshalConv conv;
5349 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5350 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5352 g_assert (encoding != -1);
5355 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5359 mono_mb_emit_ldarg (mb, argnum);
5360 mono_mb_emit_ldloc (mb, conv_arg);
5363 case MONO_NATIVE_LPWSTR:
5364 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5366 case MONO_NATIVE_LPSTR:
5367 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5370 g_assert_not_reached ();
5373 mono_mb_emit_byte (mb, CEE_STIND_REF);
5375 mono_mb_emit_ldarg (mb, argnum);
5376 mono_mb_emit_ldloc (mb, conv_arg);
5378 mono_mb_emit_icall (mb, conv_to_icall (conv));
5382 mono_mb_emit_ldloc (mb, conv_arg);
5383 mono_mb_emit_icall (mb, mono_marshal_free);
5388 if (klass->delegate) {
5390 mono_mb_emit_ldarg (mb, argnum);
5391 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5392 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5393 mono_mb_emit_ldloc (mb, conv_arg);
5394 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5395 mono_mb_emit_byte (mb, CEE_STIND_REF);
5400 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5401 /* allocate a new object */
5402 mono_mb_emit_ldarg (mb, argnum);
5403 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5404 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5405 mono_mb_emit_byte (mb, CEE_STIND_REF);
5408 /* dst = *argument */
5409 mono_mb_emit_ldarg (mb, argnum);
5412 mono_mb_emit_byte (mb, CEE_LDIND_I);
5414 mono_mb_emit_stloc (mb, 1);
5416 mono_mb_emit_ldloc (mb, 1);
5417 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5419 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5420 mono_mb_emit_ldloc (mb, 1);
5421 mono_mb_emit_icon (mb, sizeof (MonoObject));
5422 mono_mb_emit_byte (mb, CEE_ADD);
5423 mono_mb_emit_stloc (mb, 1);
5425 /* src = tmp_locals [i] */
5426 mono_mb_emit_ldloc (mb, conv_arg);
5427 mono_mb_emit_stloc (mb, 0);
5429 /* emit valuetype conversion code */
5430 emit_struct_conv (mb, klass, TRUE);
5432 /* Free the structure returned by the native code */
5433 emit_struct_free (mb, klass, conv_arg);
5435 if (m->orig_conv_args [argnum]) {
5437 * If the native function changed the pointer, then free
5438 * the original structure plus the new pointer.
5440 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5441 mono_mb_emit_ldloc (mb, conv_arg);
5442 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5444 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5445 g_assert (m->orig_conv_args [argnum]);
5447 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5450 mono_mb_emit_ldloc (mb, conv_arg);
5451 mono_mb_emit_icall (mb, mono_marshal_free);
5453 mono_mb_patch_branch (mb, pos2);
5457 /* Free the original structure passed to native code */
5458 emit_struct_free (mb, klass, conv_arg);
5460 mono_mb_patch_branch (mb, pos);
5463 case MARSHAL_ACTION_PUSH:
5465 mono_mb_emit_ldloc_addr (mb, conv_arg);
5467 mono_mb_emit_ldloc (mb, conv_arg);
5470 case MARSHAL_ACTION_CONV_RESULT:
5471 if (klass->delegate) {
5472 g_assert (!t->byref);
5473 mono_mb_emit_stloc (mb, 0);
5474 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5475 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5476 mono_mb_emit_ldloc (mb, 0);
5477 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5478 mono_mb_emit_stloc (mb, 3);
5481 mono_mb_emit_stloc (mb, 0);
5483 /* Make a copy since emit_conv modifies local 0 */
5484 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5485 mono_mb_emit_ldloc (mb, 0);
5486 mono_mb_emit_stloc (mb, loc);
5488 mono_mb_emit_byte (mb, CEE_LDNULL);
5489 mono_mb_emit_stloc (mb, 3);
5491 mono_mb_emit_ldloc (mb, 0);
5492 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5494 /* allocate result object */
5496 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5497 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5498 mono_mb_emit_stloc (mb, 3);
5502 mono_mb_emit_ldloc (mb, 3);
5503 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5504 mono_mb_emit_stloc (mb, 1);
5506 /* emit conversion code */
5507 emit_struct_conv (mb, klass, TRUE);
5509 emit_struct_free (mb, klass, loc);
5511 /* Free the pointer allocated by unmanaged code */
5512 mono_mb_emit_ldloc (mb, loc);
5513 mono_mb_emit_icall (mb, mono_marshal_free);
5514 mono_mb_patch_branch (mb, pos);
5518 case MARSHAL_ACTION_MANAGED_CONV_IN:
5519 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5521 if (klass->delegate) {
5522 g_assert (!t->byref);
5523 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5524 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5525 mono_mb_emit_ldarg (mb, argnum);
5526 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5527 mono_mb_emit_stloc (mb, conv_arg);
5531 if (klass == mono_defaults.stringbuilder_class) {
5532 MonoMarshalNative encoding;
5534 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5537 g_assert (encoding == MONO_NATIVE_LPSTR);
5539 g_assert (!t->byref);
5540 g_assert (encoding != -1);
5542 mono_mb_emit_ldarg (mb, argnum);
5543 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5544 mono_mb_emit_stloc (mb, conv_arg);
5548 /* The class can not have an automatic layout */
5549 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5550 mono_mb_emit_auto_layout_exception (mb, klass);
5554 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5555 mono_mb_emit_byte (mb, CEE_LDNULL);
5556 mono_mb_emit_stloc (mb, conv_arg);
5561 mono_mb_emit_ldarg (mb, argnum);
5565 /* Check for NULL and raise an exception */
5566 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5568 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5570 mono_mb_patch_branch (mb, pos2);
5571 mono_mb_emit_ldarg (mb, argnum);
5572 mono_mb_emit_byte (mb, CEE_LDIND_I);
5575 mono_mb_emit_stloc (mb, 0);
5577 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5578 mono_mb_emit_stloc (mb, conv_arg);
5580 mono_mb_emit_ldloc (mb, 0);
5581 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5583 /* Create and set dst */
5584 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5585 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5586 mono_mb_emit_stloc (mb, conv_arg);
5587 mono_mb_emit_ldloc (mb, conv_arg);
5588 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5589 mono_mb_emit_stloc (mb, 1);
5591 /* emit valuetype conversion code */
5592 emit_struct_conv (mb, klass, TRUE);
5594 mono_mb_patch_branch (mb, pos);
5597 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5599 /* Check for null */
5600 mono_mb_emit_ldloc (mb, conv_arg);
5601 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5602 mono_mb_emit_ldarg (mb, argnum);
5603 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5604 mono_mb_emit_byte (mb, CEE_STIND_REF);
5605 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5607 mono_mb_patch_branch (mb, pos);
5610 mono_mb_emit_ldloc (mb, conv_arg);
5611 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5612 mono_mb_emit_stloc (mb, 0);
5614 /* Allocate and set dest */
5615 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5616 mono_mb_emit_byte (mb, CEE_CONV_I);
5617 mono_mb_emit_icall (mb, mono_marshal_alloc);
5618 mono_mb_emit_stloc (mb, 1);
5620 /* Update argument pointer */
5621 mono_mb_emit_ldarg (mb, argnum);
5622 mono_mb_emit_ldloc (mb, 1);
5623 mono_mb_emit_byte (mb, CEE_STIND_I);
5625 /* emit valuetype conversion code */
5626 emit_struct_conv (mb, klass, FALSE);
5628 mono_mb_patch_branch (mb, pos2);
5630 /* byval [Out] marshalling */
5632 /* FIXME: Handle null */
5635 mono_mb_emit_ldloc (mb, conv_arg);
5636 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5637 mono_mb_emit_stloc (mb, 0);
5640 mono_mb_emit_ldarg (mb, argnum);
5641 mono_mb_emit_stloc (mb, 1);
5643 /* emit valuetype conversion code */
5644 emit_struct_conv (mb, klass, FALSE);
5648 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5649 if (klass->delegate) {
5650 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5651 mono_mb_emit_stloc (mb, 3);
5655 /* The class can not have an automatic layout */
5656 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5657 mono_mb_emit_auto_layout_exception (mb, klass);
5661 mono_mb_emit_stloc (mb, 0);
5662 /* Check for null */
5663 mono_mb_emit_ldloc (mb, 0);
5664 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5665 mono_mb_emit_byte (mb, CEE_LDNULL);
5666 mono_mb_emit_stloc (mb, 3);
5667 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5669 mono_mb_patch_branch (mb, pos);
5672 mono_mb_emit_ldloc (mb, 0);
5673 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5674 mono_mb_emit_stloc (mb, 0);
5676 /* Allocate and set dest */
5677 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5678 mono_mb_emit_byte (mb, CEE_CONV_I);
5679 mono_mb_emit_icall (mb, mono_marshal_alloc);
5680 mono_mb_emit_byte (mb, CEE_DUP);
5681 mono_mb_emit_stloc (mb, 1);
5682 mono_mb_emit_stloc (mb, 3);
5684 emit_struct_conv (mb, klass, FALSE);
5686 mono_mb_patch_branch (mb, pos2);
5690 g_assert_not_reached ();
5701 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5702 MonoMarshalSpec *spec,
5703 int conv_arg, MonoType **conv_arg_type,
5704 MarshalAction action)
5706 MonoMethodBuilder *mb = m->mb;
5707 static MonoMethod *get_object_for_native_variant = NULL;
5708 static MonoMethod *get_native_variant_for_object = NULL;
5710 if (!get_object_for_native_variant)
5711 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5712 g_assert (get_object_for_native_variant);
5714 if (!get_native_variant_for_object)
5715 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5716 g_assert (get_native_variant_for_object);
5719 case MARSHAL_ACTION_CONV_IN: {
5720 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5723 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5725 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5727 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5730 mono_mb_emit_ldarg (mb, argnum);
5732 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5733 mono_mb_emit_ldloc_addr (mb, conv_arg);
5734 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5738 case MARSHAL_ACTION_CONV_OUT: {
5739 static MonoMethod *variant_clear = NULL;
5742 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5743 g_assert (variant_clear);
5746 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5747 mono_mb_emit_ldarg (mb, argnum);
5748 mono_mb_emit_ldloc_addr (mb, conv_arg);
5749 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5750 mono_mb_emit_byte (mb, CEE_STIND_REF);
5753 mono_mb_emit_ldloc_addr (mb, conv_arg);
5754 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5758 case MARSHAL_ACTION_PUSH:
5760 mono_mb_emit_ldloc_addr (mb, conv_arg);
5762 mono_mb_emit_ldloc (mb, conv_arg);
5765 case MARSHAL_ACTION_CONV_RESULT: {
5766 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5767 mono_mb_emit_exception_marshal_directive (mb, msg);
5771 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5772 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5775 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5777 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5779 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5783 mono_mb_emit_ldarg (mb, argnum);
5785 mono_mb_emit_ldarg_addr (mb, argnum);
5786 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5787 mono_mb_emit_stloc (mb, conv_arg);
5791 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5792 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5793 mono_mb_emit_ldloc (mb, conv_arg);
5794 mono_mb_emit_ldarg (mb, argnum);
5795 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5800 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5801 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5802 mono_mb_emit_exception_marshal_directive (mb, msg);
5807 g_assert_not_reached ();
5813 #endif /* DISABLE_COM */
5814 #endif /* DISABLE_JIT */
5817 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5819 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5820 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5822 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5824 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
5836 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5837 MonoMarshalSpec *spec,
5838 int conv_arg, MonoType **conv_arg_type,
5839 MarshalAction action)
5843 case MARSHAL_ACTION_CONV_IN:
5844 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5846 case MARSHAL_ACTION_MANAGED_CONV_IN:
5847 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5851 MonoMethodBuilder *mb = m->mb;
5852 MonoClass *klass = mono_class_from_mono_type (t);
5853 gboolean need_convert, need_free;
5854 MonoMarshalNative encoding;
5856 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5859 case MARSHAL_ACTION_CONV_IN:
5860 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5861 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5863 if (klass->element_class->blittable) {
5864 mono_mb_emit_ldarg (mb, argnum);
5866 mono_mb_emit_byte (mb, CEE_LDIND_I);
5867 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
5868 mono_mb_emit_stloc (mb, conv_arg);
5871 guint32 label1, label2, label3;
5872 int index_var, src_var, dest_ptr, esize;
5873 MonoMarshalConv conv;
5874 gboolean is_string = FALSE;
5876 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5878 eklass = klass->element_class;
5880 if (eklass == mono_defaults.string_class) {
5882 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5884 else if (eklass == mono_defaults.stringbuilder_class) {
5886 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5891 if (is_string && conv == -1) {
5892 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
5893 mono_mb_emit_exception_marshal_directive (mb, msg);
5897 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5898 mono_mb_emit_ldarg (mb, argnum);
5900 mono_mb_emit_byte (mb, CEE_LDIND_I);
5901 mono_mb_emit_stloc (mb, src_var);
5904 mono_mb_emit_ldloc (mb, src_var);
5905 mono_mb_emit_stloc (mb, conv_arg);
5906 mono_mb_emit_ldloc (mb, src_var);
5907 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5910 esize = sizeof (gpointer);
5911 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
5912 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
5914 esize = mono_class_native_size (eklass, NULL);
5916 /* allocate space for the native struct and store the address */
5917 mono_mb_emit_icon (mb, esize);
5918 mono_mb_emit_ldloc (mb, src_var);
5919 mono_mb_emit_byte (mb, CEE_LDLEN);
5921 if (eklass == mono_defaults.string_class) {
5922 /* Make the array bigger for the terminating null */
5923 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
5924 mono_mb_emit_byte (mb, CEE_ADD);
5926 mono_mb_emit_byte (mb, CEE_MUL);
5927 mono_mb_emit_byte (mb, CEE_PREFIX1);
5928 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5929 mono_mb_emit_stloc (mb, conv_arg);
5931 mono_mb_emit_ldloc (mb, conv_arg);
5932 mono_mb_emit_stloc (mb, dest_ptr);
5934 /* Emit marshalling loop */
5935 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5936 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5937 mono_mb_emit_stloc (mb, index_var);
5938 label2 = mono_mb_get_label (mb);
5939 mono_mb_emit_ldloc (mb, index_var);
5940 mono_mb_emit_ldloc (mb, src_var);
5941 mono_mb_emit_byte (mb, CEE_LDLEN);
5942 label3 = mono_mb_emit_branch (mb, CEE_BGE);
5944 /* Emit marshalling code */
5947 mono_mb_emit_ldloc (mb, dest_ptr);
5948 mono_mb_emit_ldloc (mb, src_var);
5949 mono_mb_emit_ldloc (mb, index_var);
5950 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
5951 mono_mb_emit_icall (mb, conv_to_icall (conv));
5952 mono_mb_emit_byte (mb, CEE_STIND_I);
5954 /* set the src_ptr */
5955 mono_mb_emit_ldloc (mb, src_var);
5956 mono_mb_emit_ldloc (mb, index_var);
5957 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
5958 mono_mb_emit_stloc (mb, 0);
5961 mono_mb_emit_ldloc (mb, dest_ptr);
5962 mono_mb_emit_stloc (mb, 1);
5964 /* emit valuetype conversion code */
5965 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
5968 mono_mb_emit_add_to_local (mb, index_var, 1);
5969 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
5971 mono_mb_emit_branch_label (mb, CEE_BR, label2);
5973 mono_mb_patch_branch (mb, label3);
5975 if (eklass == mono_defaults.string_class) {
5976 /* Null terminate */
5977 mono_mb_emit_ldloc (mb, dest_ptr);
5978 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5979 mono_mb_emit_byte (mb, CEE_STIND_REF);
5982 mono_mb_patch_branch (mb, label1);
5987 case MARSHAL_ACTION_CONV_OUT:
5988 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
5989 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);
5990 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
5993 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
5994 int param_num = spec->data.array_data.param_num;
5995 MonoType *param_type;
5997 param_type = m->sig->params [param_num];
5999 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6000 char *msg = g_strdup ("Not implemented.");
6001 mono_mb_emit_exception_marshal_directive (mb, msg);
6005 mono_mb_emit_ldarg (mb, argnum);
6007 /* Create the managed array */
6008 mono_mb_emit_ldarg (mb, param_num);
6009 if (m->sig->params [param_num]->byref)
6010 // FIXME: Support other types
6011 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6012 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6013 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6014 /* Store into argument */
6015 mono_mb_emit_byte (mb, CEE_STIND_I);
6018 if (need_convert || need_free) {
6019 /* FIXME: Optimize blittable case */
6021 guint32 label1, label2, label3;
6022 int index_var, src_ptr, loc, esize;
6024 eklass = klass->element_class;
6025 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6026 esize = sizeof (gpointer);
6027 else if (eklass == mono_defaults.char_class)
6028 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6030 esize = mono_class_native_size (eklass, NULL);
6031 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6032 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6035 mono_mb_emit_ldarg (mb, argnum);
6037 mono_mb_emit_byte (mb, CEE_LDIND_I);
6038 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6040 mono_mb_emit_ldloc (mb, conv_arg);
6041 mono_mb_emit_stloc (mb, src_ptr);
6043 /* Emit marshalling loop */
6044 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6045 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6046 mono_mb_emit_stloc (mb, index_var);
6047 label2 = mono_mb_get_label (mb);
6048 mono_mb_emit_ldloc (mb, index_var);
6049 mono_mb_emit_ldarg (mb, argnum);
6051 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6052 mono_mb_emit_byte (mb, CEE_LDLEN);
6053 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6055 /* Emit marshalling code */
6057 if (eklass == mono_defaults.stringbuilder_class) {
6058 gboolean need_free2;
6059 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6061 g_assert (conv != -1);
6064 mono_mb_emit_ldarg (mb, argnum);
6066 mono_mb_emit_byte (mb, CEE_LDIND_I);
6067 mono_mb_emit_ldloc (mb, index_var);
6068 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6071 mono_mb_emit_ldloc (mb, src_ptr);
6072 mono_mb_emit_byte (mb, CEE_LDIND_I);
6074 mono_mb_emit_icall (mb, conv_to_icall (conv));
6078 mono_mb_emit_ldloc (mb, src_ptr);
6079 mono_mb_emit_byte (mb, CEE_LDIND_I);
6081 mono_mb_emit_icall (mb, mono_marshal_free);
6084 else if (eklass == mono_defaults.string_class) {
6087 mono_mb_emit_ldloc (mb, src_ptr);
6088 mono_mb_emit_byte (mb, CEE_LDIND_I);
6090 mono_mb_emit_icall (mb, mono_marshal_free);
6095 /* set the src_ptr */
6096 mono_mb_emit_ldloc (mb, src_ptr);
6097 mono_mb_emit_stloc (mb, 0);
6100 mono_mb_emit_ldarg (mb, argnum);
6102 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6103 mono_mb_emit_ldloc (mb, index_var);
6104 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6105 mono_mb_emit_stloc (mb, 1);
6107 /* emit valuetype conversion code */
6108 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
6112 mono_mb_emit_ldloc (mb, src_ptr);
6113 mono_mb_emit_stloc (mb, loc);
6114 mono_mb_emit_ldloc (mb, loc);
6116 emit_struct_free (mb, eklass, loc);
6120 mono_mb_emit_add_to_local (mb, index_var, 1);
6121 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6123 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6125 mono_mb_patch_branch (mb, label1);
6126 mono_mb_patch_branch (mb, label3);
6129 if (klass->element_class->blittable) {
6130 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6132 mono_mb_emit_ldarg (mb, argnum);
6134 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6135 mono_mb_emit_ldloc (mb, conv_arg);
6136 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6141 case MARSHAL_ACTION_PUSH:
6143 mono_mb_emit_ldloc_addr (mb, conv_arg);
6145 mono_mb_emit_ldloc (mb, conv_arg);
6148 case MARSHAL_ACTION_CONV_RESULT:
6149 /* fixme: we need conversions here */
6150 mono_mb_emit_stloc (mb, 3);
6153 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6155 guint32 label1, label2, label3;
6156 int index_var, src_ptr, esize, param_num, num_elem;
6157 MonoMarshalConv conv;
6158 gboolean is_string = FALSE;
6160 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6161 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6164 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6165 mono_mb_emit_exception_marshal_directive (mb, msg);
6169 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6170 mono_mb_emit_exception_marshal_directive (mb, msg);
6173 if (spec->native != MONO_NATIVE_LPARRAY) {
6174 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6175 mono_mb_emit_exception_marshal_directive (mb, msg);
6179 /* FIXME: t is from the method which is wrapped, not the delegate type */
6180 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6182 param_num = spec->data.array_data.param_num;
6183 num_elem = spec->data.array_data.num_elem;
6184 if (spec->data.array_data.elem_mult == 0)
6185 /* param_num is not specified */
6188 if (param_num == -1) {
6189 if (num_elem <= 0) {
6190 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6191 mono_mb_emit_exception_marshal_directive (mb, msg);
6196 /* FIXME: Optimize blittable case */
6198 eklass = klass->element_class;
6199 if (eklass == mono_defaults.string_class) {
6201 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6203 else if (eklass == mono_defaults.stringbuilder_class) {
6205 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6210 mono_marshal_load_type_info (eklass);
6213 esize = sizeof (gpointer);
6215 esize = mono_class_native_size (eklass, NULL);
6216 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6218 mono_mb_emit_byte (mb, CEE_LDNULL);
6219 mono_mb_emit_stloc (mb, conv_arg);
6221 /* Check param index */
6222 if (param_num != -1) {
6223 if (param_num >= m->sig->param_count) {
6224 char *msg = g_strdup ("Array size control parameter index is out of range.");
6225 mono_mb_emit_exception_marshal_directive (mb, msg);
6228 switch (m->sig->params [param_num]->type) {
6241 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6242 mono_mb_emit_exception_marshal_directive (mb, msg);
6249 mono_mb_emit_ldarg (mb, argnum);
6250 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6252 mono_mb_emit_ldarg (mb, argnum);
6253 mono_mb_emit_stloc (mb, src_ptr);
6255 /* Create managed array */
6257 * The LPArray marshalling spec says that sometimes param_num starts
6258 * from 1, sometimes it starts from 0. But MS seems to allways start
6262 if (param_num == -1) {
6263 mono_mb_emit_icon (mb, num_elem);
6265 mono_mb_emit_ldarg (mb, param_num);
6267 mono_mb_emit_icon (mb, num_elem);
6268 mono_mb_emit_byte (mb, CEE_ADD);
6270 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6273 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6274 mono_mb_emit_stloc (mb, conv_arg);
6276 if (eklass->blittable) {
6277 mono_mb_emit_ldloc (mb, conv_arg);
6278 mono_mb_emit_byte (mb, CEE_CONV_I);
6279 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6280 mono_mb_emit_byte (mb, CEE_ADD);
6281 mono_mb_emit_ldarg (mb, argnum);
6282 mono_mb_emit_ldloc (mb, conv_arg);
6283 mono_mb_emit_byte (mb, CEE_LDLEN);
6284 mono_mb_emit_icon (mb, esize);
6285 mono_mb_emit_byte (mb, CEE_MUL);
6286 mono_mb_emit_byte (mb, CEE_PREFIX1);
6287 mono_mb_emit_byte (mb, CEE_CPBLK);
6291 /* Emit marshalling loop */
6292 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6293 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6294 mono_mb_emit_stloc (mb, index_var);
6295 label2 = mono_mb_get_label (mb);
6296 mono_mb_emit_ldloc (mb, index_var);
6297 mono_mb_emit_ldloc (mb, conv_arg);
6298 mono_mb_emit_byte (mb, CEE_LDLEN);
6299 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6301 /* Emit marshalling code */
6303 g_assert (conv != -1);
6305 mono_mb_emit_ldloc (mb, conv_arg);
6306 mono_mb_emit_ldloc (mb, index_var);
6308 mono_mb_emit_ldloc (mb, src_ptr);
6309 mono_mb_emit_byte (mb, CEE_LDIND_I);
6311 mono_mb_emit_icall (mb, conv_to_icall (conv));
6312 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6315 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6316 mono_mb_emit_exception_marshal_directive (mb, msg);
6320 mono_mb_emit_add_to_local (mb, index_var, 1);
6321 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6323 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6325 mono_mb_patch_branch (mb, label1);
6326 mono_mb_patch_branch (mb, label3);
6330 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6332 guint32 label1, label2, label3;
6333 int index_var, dest_ptr, esize, param_num, num_elem;
6334 MonoMarshalConv conv;
6335 gboolean is_string = FALSE;
6338 /* Already handled in CONV_IN */
6341 /* These are already checked in CONV_IN */
6342 g_assert (!t->byref);
6343 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6344 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6346 param_num = spec->data.array_data.param_num;
6347 num_elem = spec->data.array_data.num_elem;
6349 if (spec->data.array_data.elem_mult == 0)
6350 /* param_num is not specified */
6353 if (param_num == -1) {
6354 if (num_elem <= 0) {
6355 g_assert_not_reached ();
6359 /* FIXME: Optimize blittable case */
6361 eklass = klass->element_class;
6362 if (eklass == mono_defaults.string_class) {
6364 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6366 else if (eklass == mono_defaults.stringbuilder_class) {
6368 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6373 mono_marshal_load_type_info (eklass);
6376 esize = sizeof (gpointer);
6378 esize = mono_class_native_size (eklass, NULL);
6380 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6383 mono_mb_emit_ldloc (mb, conv_arg);
6384 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6386 mono_mb_emit_ldarg (mb, argnum);
6387 mono_mb_emit_stloc (mb, dest_ptr);
6389 if (eklass->blittable) {
6391 mono_mb_emit_ldarg (mb, argnum);
6393 mono_mb_emit_ldloc (mb, conv_arg);
6394 mono_mb_emit_byte (mb, CEE_CONV_I);
6395 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6396 mono_mb_emit_byte (mb, CEE_ADD);
6398 mono_mb_emit_ldloc (mb, conv_arg);
6399 mono_mb_emit_byte (mb, CEE_LDLEN);
6400 mono_mb_emit_icon (mb, esize);
6401 mono_mb_emit_byte (mb, CEE_MUL);
6402 mono_mb_emit_byte (mb, CEE_PREFIX1);
6403 mono_mb_emit_byte (mb, CEE_CPBLK);
6407 /* Emit marshalling loop */
6408 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6409 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6410 mono_mb_emit_stloc (mb, index_var);
6411 label2 = mono_mb_get_label (mb);
6412 mono_mb_emit_ldloc (mb, index_var);
6413 mono_mb_emit_ldloc (mb, conv_arg);
6414 mono_mb_emit_byte (mb, CEE_LDLEN);
6415 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6417 /* Emit marshalling code */
6419 g_assert (conv != -1);
6422 mono_mb_emit_ldloc (mb, dest_ptr);
6425 mono_mb_emit_ldloc (mb, conv_arg);
6426 mono_mb_emit_ldloc (mb, index_var);
6428 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6430 mono_mb_emit_icall (mb, conv_to_icall (conv));
6431 mono_mb_emit_byte (mb, CEE_STIND_I);
6434 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6435 mono_mb_emit_exception_marshal_directive (mb, msg);
6439 mono_mb_emit_add_to_local (mb, index_var, 1);
6440 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6442 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6444 mono_mb_patch_branch (mb, label1);
6445 mono_mb_patch_branch (mb, label3);
6449 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6451 guint32 label1, label2, label3;
6452 int index_var, src, dest, esize;
6453 MonoMarshalConv conv = -1;
6454 gboolean is_string = FALSE;
6456 g_assert (!t->byref);
6458 eklass = klass->element_class;
6460 mono_marshal_load_type_info (eklass);
6462 if (eklass == mono_defaults.string_class) {
6464 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6467 g_assert_not_reached ();
6471 esize = sizeof (gpointer);
6472 else if (eklass == mono_defaults.char_class)
6473 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6475 esize = mono_class_native_size (eklass, NULL);
6477 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6478 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6480 mono_mb_emit_stloc (mb, src);
6481 mono_mb_emit_ldloc (mb, src);
6482 mono_mb_emit_stloc (mb, 3);
6484 /* Check for null */
6485 mono_mb_emit_ldloc (mb, src);
6486 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6488 /* Allocate native array */
6489 mono_mb_emit_icon (mb, esize);
6490 mono_mb_emit_ldloc (mb, src);
6491 mono_mb_emit_byte (mb, CEE_LDLEN);
6493 if (eklass == mono_defaults.string_class) {
6494 /* Make the array bigger for the terminating null */
6495 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6496 mono_mb_emit_byte (mb, CEE_ADD);
6498 mono_mb_emit_byte (mb, CEE_MUL);
6499 mono_mb_emit_icall (mb, mono_marshal_alloc);
6500 mono_mb_emit_stloc (mb, dest);
6501 mono_mb_emit_ldloc (mb, dest);
6502 mono_mb_emit_stloc (mb, 3);
6504 /* Emit marshalling loop */
6505 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6506 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6507 mono_mb_emit_stloc (mb, index_var);
6508 label2 = mono_mb_get_label (mb);
6509 mono_mb_emit_ldloc (mb, index_var);
6510 mono_mb_emit_ldloc (mb, src);
6511 mono_mb_emit_byte (mb, CEE_LDLEN);
6512 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6514 /* Emit marshalling code */
6516 g_assert (conv != -1);
6519 mono_mb_emit_ldloc (mb, dest);
6522 mono_mb_emit_ldloc (mb, src);
6523 mono_mb_emit_ldloc (mb, index_var);
6525 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6527 mono_mb_emit_icall (mb, conv_to_icall (conv));
6528 mono_mb_emit_byte (mb, CEE_STIND_I);
6531 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6532 mono_mb_emit_exception_marshal_directive (mb, msg);
6536 mono_mb_emit_add_to_local (mb, index_var, 1);
6537 mono_mb_emit_add_to_local (mb, dest, esize);
6539 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6541 mono_mb_patch_branch (mb, label3);
6542 mono_mb_patch_branch (mb, label1);
6546 g_assert_not_reached ();
6553 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6556 return &mono_defaults.int32_class->byval_arg;
6558 switch (spec->native) {
6559 case MONO_NATIVE_I1:
6560 case MONO_NATIVE_U1:
6561 return &mono_defaults.byte_class->byval_arg;
6562 case MONO_NATIVE_VARIANTBOOL:
6563 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6564 return &mono_defaults.int16_class->byval_arg;
6565 case MONO_NATIVE_BOOLEAN:
6566 return &mono_defaults.int32_class->byval_arg;
6568 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6569 return &mono_defaults.int32_class->byval_arg;
6575 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6577 MonoClass* conv_arg_class = mono_defaults.int32_class;
6579 switch (spec->native) {
6580 case MONO_NATIVE_I1:
6581 case MONO_NATIVE_U1:
6582 conv_arg_class = mono_defaults.byte_class;
6583 if (ldop) *ldop = CEE_LDIND_I1;
6585 case MONO_NATIVE_VARIANTBOOL:
6586 conv_arg_class = mono_defaults.int16_class;
6587 if (ldop) *ldop = CEE_LDIND_I2;
6589 case MONO_NATIVE_BOOLEAN:
6592 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6595 return conv_arg_class;
6599 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6600 MonoMarshalSpec *spec,
6601 int conv_arg, MonoType **conv_arg_type,
6602 MarshalAction action)
6606 case MARSHAL_ACTION_CONV_IN:
6608 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6610 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6613 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6614 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6616 *conv_arg_type = &conv_arg_class->this_arg;
6618 *conv_arg_type = &conv_arg_class->byval_arg;
6624 MonoMethodBuilder *mb = m->mb;
6627 case MARSHAL_ACTION_CONV_IN: {
6628 MonoType *local_type;
6630 guint8 ldc_op = CEE_LDC_I4_1;
6632 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6634 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6636 *conv_arg_type = local_type;
6637 conv_arg = mono_mb_add_local (mb, local_type);
6639 mono_mb_emit_ldarg (mb, argnum);
6641 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6642 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6643 mono_mb_emit_byte (mb, ldc_op);
6644 mono_mb_emit_stloc (mb, conv_arg);
6645 mono_mb_patch_branch (mb, label_false);
6650 case MARSHAL_ACTION_CONV_OUT:
6652 int label_false, label_end;
6656 mono_mb_emit_ldarg (mb, argnum);
6657 mono_mb_emit_ldloc (mb, conv_arg);
6659 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6660 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6662 label_end = mono_mb_emit_branch (mb, CEE_BR);
6663 mono_mb_patch_branch (mb, label_false);
6664 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6665 mono_mb_patch_branch (mb, label_end);
6667 mono_mb_emit_byte (mb, CEE_STIND_I1);
6671 case MARSHAL_ACTION_PUSH:
6673 mono_mb_emit_ldloc_addr (mb, conv_arg);
6675 mono_mb_emit_ldloc (mb, conv_arg);
6677 mono_mb_emit_ldarg (mb, argnum);
6680 case MARSHAL_ACTION_CONV_RESULT:
6681 /* maybe we need to make sure that it fits within 8 bits */
6682 mono_mb_emit_stloc (mb, 3);
6685 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6686 MonoClass* conv_arg_class = mono_defaults.int32_class;
6687 guint8 ldop = CEE_LDIND_I4;
6688 int label_null, label_false;
6690 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6691 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6694 *conv_arg_type = &conv_arg_class->this_arg;
6696 *conv_arg_type = &conv_arg_class->byval_arg;
6699 mono_mb_emit_ldarg (mb, argnum);
6703 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6704 mono_mb_emit_ldarg (mb, argnum);
6705 mono_mb_emit_byte (mb, ldop);
6709 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6710 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6711 mono_mb_emit_stloc (mb, conv_arg);
6712 mono_mb_patch_branch (mb, label_false);
6715 mono_mb_patch_branch (mb, label_null);
6719 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6720 guint8 stop = CEE_STIND_I4;
6721 guint8 ldc_op = CEE_LDC_I4_1;
6722 int label_null,label_false, label_end;;
6727 switch (spec->native) {
6728 case MONO_NATIVE_I1:
6729 case MONO_NATIVE_U1:
6730 stop = CEE_STIND_I1;
6732 case MONO_NATIVE_VARIANTBOOL:
6733 stop = CEE_STIND_I2;
6734 ldc_op = CEE_LDC_I4_M1;
6742 mono_mb_emit_ldarg (mb, argnum);
6743 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6745 mono_mb_emit_ldarg (mb, argnum);
6746 mono_mb_emit_ldloc (mb, conv_arg);
6748 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6749 mono_mb_emit_byte (mb, ldc_op);
6750 label_end = mono_mb_emit_branch (mb, CEE_BR);
6752 mono_mb_patch_branch (mb, label_false);
6753 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6754 mono_mb_patch_branch (mb, label_end);
6756 mono_mb_emit_byte (mb, stop);
6757 mono_mb_patch_branch (mb, label_null);
6762 g_assert_not_reached ();
6769 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6770 MonoMarshalSpec *spec, int conv_arg,
6771 MonoType **conv_arg_type, MarshalAction action)
6774 MonoMethodBuilder *mb = m->mb;
6777 case MARSHAL_ACTION_CONV_IN:
6778 /* MS seems to allow this in some cases, ie. bxc #158 */
6780 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6781 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6782 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6787 case MARSHAL_ACTION_PUSH:
6788 mono_mb_emit_ldarg (mb, argnum);
6791 case MARSHAL_ACTION_CONV_RESULT:
6792 /* no conversions necessary */
6793 mono_mb_emit_stloc (mb, 3);
6804 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6805 MonoMarshalSpec *spec, int conv_arg,
6806 MonoType **conv_arg_type, MarshalAction action)
6809 MonoMethodBuilder *mb = m->mb;
6812 case MARSHAL_ACTION_PUSH:
6813 /* fixme: dont know how to marshal that. We cant simply
6814 * convert it to a one byte UTF8 character, because an
6815 * unicode character may need more that one byte in UTF8 */
6816 mono_mb_emit_ldarg (mb, argnum);
6819 case MARSHAL_ACTION_CONV_RESULT:
6820 /* fixme: we need conversions here */
6821 mono_mb_emit_stloc (mb, 3);
6832 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
6833 MonoMarshalSpec *spec, int conv_arg,
6834 MonoType **conv_arg_type, MarshalAction action)
6837 MonoMethodBuilder *mb = m->mb;
6840 case MARSHAL_ACTION_PUSH:
6841 mono_mb_emit_ldarg (mb, argnum);
6844 case MARSHAL_ACTION_CONV_RESULT:
6845 /* no conversions necessary */
6846 mono_mb_emit_stloc (mb, 3);
6857 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
6858 MonoMarshalSpec *spec, int conv_arg,
6859 MonoType **conv_arg_type, MarshalAction action)
6861 /* Ensure that we have marshalling info for this param */
6862 mono_marshal_load_type_info (mono_class_from_mono_type (t));
6864 if (spec && spec->native == MONO_NATIVE_CUSTOM)
6865 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6867 if (spec && spec->native == MONO_NATIVE_ASANY)
6868 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6871 case MONO_TYPE_VALUETYPE:
6872 if (t->data.klass == mono_defaults.handleref_class)
6873 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6875 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6876 case MONO_TYPE_STRING:
6877 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6878 case MONO_TYPE_CLASS:
6879 case MONO_TYPE_OBJECT:
6881 if (spec && spec->native == MONO_NATIVE_STRUCT)
6882 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6884 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
6885 spec->native == MONO_NATIVE_IDISPATCH ||
6886 spec->native == MONO_NATIVE_INTERFACE))
6887 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6888 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
6889 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
6890 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
6891 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6894 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
6895 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
6896 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6898 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6899 case MONO_TYPE_ARRAY:
6900 case MONO_TYPE_SZARRAY:
6901 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6902 case MONO_TYPE_BOOLEAN:
6903 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6905 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6906 case MONO_TYPE_CHAR:
6907 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6920 case MONO_TYPE_FNPTR:
6921 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6922 case MONO_TYPE_GENERICINST:
6923 if (mono_type_generic_inst_is_valuetype (t))
6924 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6926 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6934 * mono_marshal_emit_native_wrapper:
6935 * @image: the image to use for looking up custom marshallers
6936 * @sig: The signature of the native function
6937 * @piinfo: Marshalling information
6938 * @mspecs: Marshalling information
6939 * @aot: whenever the created method will be compiled by the AOT compiler
6940 * @method: if non-NULL, the pinvoke method to call
6941 * @check_exceptions: Whenever to check for pending exceptions after the native call
6942 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
6944 * generates IL code for the pinvoke wrapper, the generated code calls @func.
6947 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)
6949 EmitMarshalContext m;
6950 MonoMethodSignature *csig;
6952 int i, argnum, *tmp_locals;
6953 int type, param_shift = 0;
6954 static MonoMethodSignature *get_last_error_sig = NULL;
6959 memset (&m, 0, sizeof (m));
6964 /* we copy the signature, so that we can set pinvoke to 0 */
6966 /* The function address is passed as the first argument */
6967 g_assert (!sig->hasthis);
6970 csig = signature_dup (mb->method->klass->image, sig);
6978 /* we allocate local for use with emit_struct_conv() */
6979 /* allocate local 0 (pointer) src_ptr */
6980 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6981 /* allocate local 1 (pointer) dst_ptr */
6982 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6983 /* allocate local 2 (boolean) delete_old */
6984 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6986 /* delete_old = FALSE */
6987 mono_mb_emit_icon (mb, 0);
6988 mono_mb_emit_stloc (mb, 2);
6990 if (!MONO_TYPE_IS_VOID(sig->ret)) {
6991 /* allocate local 3 to store the return value */
6992 mono_mb_add_local (mb, sig->ret);
6996 /* local 4, the local to be used when calling the suspend funcs */
6997 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7000 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7001 /* Return type custom marshaling */
7003 * Since we can't determine the return type of the unmanaged function,
7004 * we assume it returns a pointer, and pass that pointer to
7005 * MarshalNativeToManaged.
7007 csig->ret = &mono_defaults.int_class->byval_arg;
7010 /* we first do all conversions */
7011 tmp_locals = alloca (sizeof (int) * sig->param_count);
7012 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7014 for (i = 0; i < sig->param_count; i ++) {
7015 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7018 /* push all arguments */
7021 mono_mb_emit_byte (mb, CEE_LDARG_0);
7023 for (i = 0; i < sig->param_count; i++) {
7024 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7028 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7029 mono_mb_emit_stloc (mb, coop_gc_var);
7032 /* call the native method */
7034 mono_mb_emit_byte (mb, CEE_LDARG_0);
7035 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7036 mono_mb_emit_byte (mb, CEE_LDIND_I);
7037 mono_mb_emit_calli (mb, csig);
7038 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7040 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7042 g_assert_not_reached ();
7047 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7048 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7049 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7050 mono_mb_emit_calli (mb, csig);
7052 mono_mb_emit_native_call (mb, csig, func);
7056 /* Set LastError if needed */
7057 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7058 if (!get_last_error_sig) {
7059 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7060 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7061 get_last_error_sig->pinvoke = 1;
7066 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7067 * clobber its value.
7069 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7070 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7072 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7077 mono_mb_emit_ldloc (mb, coop_gc_var);
7078 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7081 /* convert the result */
7082 if (!sig->ret->byref) {
7083 MonoMarshalSpec *spec = mspecs [0];
7084 type = sig->ret->type;
7086 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7087 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7092 case MONO_TYPE_VOID:
7094 case MONO_TYPE_VALUETYPE:
7095 klass = sig->ret->data.klass;
7096 if (klass->enumtype) {
7097 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7100 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7114 case MONO_TYPE_FNPTR:
7115 case MONO_TYPE_STRING:
7116 case MONO_TYPE_CLASS:
7117 case MONO_TYPE_OBJECT:
7118 case MONO_TYPE_BOOLEAN:
7119 case MONO_TYPE_ARRAY:
7120 case MONO_TYPE_SZARRAY:
7121 case MONO_TYPE_CHAR:
7123 case MONO_TYPE_GENERICINST:
7124 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7126 case MONO_TYPE_TYPEDBYREF:
7128 g_warning ("return type 0x%02x unknown", sig->ret->type);
7129 g_assert_not_reached ();
7133 mono_mb_emit_stloc (mb, 3);
7137 * Need to call this after converting the result since MONO_VTADDR needs
7138 * to be adjacent to the call instruction.
7140 if (check_exceptions)
7141 emit_thread_interrupt_checkpoint (mb);
7143 /* we need to convert byref arguments back and free string arrays */
7144 for (i = 0; i < sig->param_count; i++) {
7145 MonoType *t = sig->params [i];
7146 MonoMarshalSpec *spec = mspecs [i + 1];
7148 argnum = i + param_shift;
7150 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7151 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7156 case MONO_TYPE_STRING:
7157 case MONO_TYPE_VALUETYPE:
7158 case MONO_TYPE_CLASS:
7159 case MONO_TYPE_OBJECT:
7160 case MONO_TYPE_SZARRAY:
7161 case MONO_TYPE_BOOLEAN:
7162 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7169 if (!MONO_TYPE_IS_VOID(sig->ret))
7170 mono_mb_emit_ldloc (mb, 3);
7172 mono_mb_emit_byte (mb, CEE_RET);
7174 #endif /* DISABLE_JIT */
7177 G_GNUC_UNUSED static void
7178 code_for (MonoMethod *method) {
7179 MonoMethodHeader *header = mono_method_get_header (method);
7180 printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (method, TRUE), mono_disasm_code (0, method, header->code, header->code + header->code_size));
7184 * mono_marshal_get_native_wrapper:
7185 * @method: The MonoMethod to wrap.
7186 * @check_exceptions: Whenever to check for pending exceptions
7188 * generates IL code for the pinvoke wrapper (the generated method
7189 * calls the unmanaged code in piinfo->addr)
7190 * The wrapper info for the wrapper is a WrapperInfo structure.
7193 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7195 MonoMethodSignature *sig, *csig;
7196 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7197 MonoMethodBuilder *mb;
7198 MonoMarshalSpec **mspecs;
7201 gboolean pinvoke = FALSE;
7204 const char *exc_class = "MissingMethodException";
7205 const char *exc_arg = NULL;
7208 g_assert (method != NULL);
7209 g_assert (mono_method_signature (method)->pinvoke);
7212 if (check_exceptions)
7213 cache = get_cache (&method->klass->image->native_wrapper_aot_check_cache, mono_aligned_addr_hash, NULL);
7215 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7217 if (check_exceptions)
7218 cache = get_cache (&method->klass->image->native_wrapper_check_cache, mono_aligned_addr_hash, NULL);
7220 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7222 if ((res = mono_marshal_find_in_cache (cache, method)))
7225 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7226 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7230 return mono_cominterop_get_native_wrapper (method);
7232 g_assert_not_reached ();
7236 sig = mono_method_signature (method);
7238 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7239 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7242 if (!piinfo->addr) {
7244 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7245 exc_arg = "Method contains unsupported native code";
7247 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7249 piinfo->addr = mono_lookup_internal_call (method);
7253 /* hack - redirect certain string constructors to CreateString */
7254 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7255 g_assert (!pinvoke);
7256 g_assert (method->string_ctor);
7257 g_assert (sig->hasthis);
7259 /* CreateString returns a value */
7260 csig = signature_dup (method->klass->image, sig);
7261 csig->ret = &mono_defaults.string_class->byval_arg;
7265 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7266 if (!strcmp ("CreateString", res->name) &&
7267 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7270 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7271 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7273 /* create a wrapper to preserve .ctor in stack trace */
7274 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7277 mono_mb_emit_byte (mb, CEE_LDARG_0);
7278 for (i = 1; i <= csig->param_count; i++)
7279 mono_mb_emit_ldarg (mb, i);
7280 mono_mb_emit_managed_call (mb, res, NULL);
7281 mono_mb_emit_byte (mb, CEE_RET);
7284 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7285 info->d.string_ctor.method = method;
7287 /* use native_wrapper_cache because internal calls are looked up there */
7288 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7289 csig->param_count + 1, info, NULL);
7296 /* exception will be thrown */
7297 piinfo->addr = NULL;
7298 g_warning ("cannot find CreateString for .ctor");
7301 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7303 mb->method->save_lmf = 1;
7306 * In AOT mode and embedding scenarios, it is possible that the icall is not
7307 * registered in the runtime doing the AOT compilation.
7309 if (!piinfo->addr && !aot) {
7311 mono_mb_emit_exception (mb, exc_class, exc_arg);
7313 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7314 info->d.managed_to_native.method = method;
7316 csig = signature_dup (method->klass->image, sig);
7318 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7319 csig->param_count + 16, info, NULL);
7325 /* internal calls: we simply push all arguments and call the method (no conversions) */
7326 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7328 csig = signature_dup_add_this (method->klass->image, sig, method->klass);
7330 csig = signature_dup (method->klass->image, sig);
7332 /* hack - string constructors returns a value */
7333 if (method->string_ctor)
7334 csig->ret = &mono_defaults.string_class->byval_arg;
7341 * Add a null check since public icalls can be called with 'call' which
7342 * does no such check.
7344 mono_mb_emit_byte (mb, CEE_LDARG_0);
7345 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7346 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7347 mono_mb_patch_branch (mb, pos);
7349 mono_mb_emit_byte (mb, CEE_LDARG_0);
7352 for (i = 0; i < sig->param_count; i++)
7353 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7356 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7357 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7358 mono_mb_emit_calli (mb, csig);
7360 g_assert (piinfo->addr);
7361 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7363 if (check_exceptions)
7364 emit_thread_interrupt_checkpoint (mb);
7365 mono_mb_emit_byte (mb, CEE_RET);
7367 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7368 info->d.managed_to_native.method = method;
7370 csig = signature_dup (method->klass->image, csig);
7372 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7381 g_assert (piinfo->addr);
7384 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7385 mono_method_get_marshal_info (method, mspecs);
7387 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7389 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7390 info->d.managed_to_native.method = method;
7392 csig = signature_dup (method->klass->image, sig);
7394 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7399 for (i = sig->param_count; i >= 0; i--)
7401 mono_metadata_free_marshal_spec (mspecs [i]);
7405 /* code_for (res); */
7411 * mono_marshal_get_native_func_wrapper:
7412 * @image: The image to use for memory allocation and for looking up custom marshallers.
7413 * @sig: The signature of the function
7414 * @func: The native function to wrap
7416 * Returns a wrapper method around native functions, similar to the pinvoke
7420 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7421 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7423 MonoMethodSignature *csig;
7425 SignaturePointerPair key, *new_key;
7426 MonoMethodBuilder *mb;
7435 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7436 if ((res = mono_marshal_find_in_cache (cache, &key)))
7439 name = g_strdup_printf ("wrapper_native_%p", func);
7440 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7441 mb->method->save_lmf = 1;
7444 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7447 csig = signature_dup (image, sig);
7450 new_key = g_new (SignaturePointerPair,1);
7451 new_key->sig = csig;
7452 new_key->pointer = func;
7454 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7460 mono_marshal_set_wrapper_info (res, NULL);
7466 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7470 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7472 MonoMethodSignature *sig, *csig;
7473 MonoMethodBuilder *mb;
7478 MonoMethodPInvoke mpiinfo;
7479 MonoMethodPInvoke *piinfo = &mpiinfo;
7480 MonoMarshalSpec **mspecs;
7481 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7482 MonoImage *image = invoke->klass->image;
7485 // FIXME: include UnmanagedFunctionPointerAttribute info
7488 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7490 cache = get_cache (&image->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7491 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7494 memset (&mpiinfo, 0, sizeof (mpiinfo));
7495 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7497 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7498 mono_method_get_marshal_info (invoke, mspecs);
7499 /* Freed below so don't alloc from mempool */
7500 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7503 name = g_strdup_printf ("wrapper_aot_native");
7504 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7505 mb->method->save_lmf = 1;
7508 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7511 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7512 info->d.managed_to_native.method = invoke;
7514 g_assert (!sig->hasthis);
7515 csig = signature_dup_add_this (image, sig, mono_defaults.int_class);
7517 res = mono_mb_create_and_cache_full (cache, invoke,
7518 mb, csig, csig->param_count + 16,
7522 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7524 mono_metadata_free_marshal_spec (mspecs [i]);
7532 * mono_marshal_emit_managed_wrapper:
7534 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7535 * the delegate which wraps the managed method to be called. For closed delegates,
7536 * it could have fewer parameters than the method it wraps.
7537 * THIS_LOC is the memory location where the target of the delegate is stored.
7540 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7543 MonoMethodSignature *sig, *csig;
7549 /* we first do all conversions */
7550 for (i = 0; i < sig->param_count; i ++) {
7551 MonoType *t = sig->params [i];
7554 case MONO_TYPE_OBJECT:
7555 case MONO_TYPE_CLASS:
7556 case MONO_TYPE_VALUETYPE:
7557 case MONO_TYPE_ARRAY:
7558 case MONO_TYPE_SZARRAY:
7559 case MONO_TYPE_STRING:
7560 case MONO_TYPE_BOOLEAN:
7561 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7565 if (!sig->ret->byref) {
7566 switch (sig->ret->type) {
7567 case MONO_TYPE_STRING:
7568 csig->ret = &mono_defaults.int_class->byval_arg;
7575 MonoMethodSignature *sig, *csig;
7577 gboolean closed = FALSE;
7585 /* allocate local 0 (pointer) src_ptr */
7586 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7587 /* allocate local 1 (pointer) dst_ptr */
7588 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7589 /* allocate local 2 (boolean) delete_old */
7590 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7592 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7593 /* Closed delegate */
7594 g_assert (sig->param_count == invoke_sig->param_count + 1);
7596 /* Use a new signature without the first argument */
7597 sig = mono_metadata_signature_dup (sig);
7598 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7599 sig->param_count --;
7602 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7603 /* allocate local 3 to store the return value */
7604 mono_mb_add_local (mb, sig->ret);
7607 /* local 4, the local to be used when calling the reset_blocking funcs */
7608 /* tons of code hardcode 3 to be the return var */
7609 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
7612 mono_mb_emit_icon (mb, 0);
7613 mono_mb_emit_stloc (mb, 2);
7616 * Might need to attach the thread to the JIT or change the
7617 * domain for the callback.
7619 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7620 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7623 /* XXX can we merge reset_blocking_start with JIT_ATTACH above and save one call? */
7624 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
7625 mono_mb_emit_stloc (mb, coop_gc_var);
7628 /* we first do all conversions */
7629 tmp_locals = alloca (sizeof (int) * sig->param_count);
7630 for (i = 0; i < sig->param_count; i ++) {
7631 MonoType *t = sig->params [i];
7634 case MONO_TYPE_OBJECT:
7635 case MONO_TYPE_CLASS:
7636 case MONO_TYPE_VALUETYPE:
7637 case MONO_TYPE_ARRAY:
7638 case MONO_TYPE_SZARRAY:
7639 case MONO_TYPE_STRING:
7640 case MONO_TYPE_BOOLEAN:
7641 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7650 emit_thread_interrupt_checkpoint (mb);
7653 if (target_handle) {
7654 mono_mb_emit_icon (mb, (gint32)target_handle);
7655 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7658 g_assert_not_reached ();
7660 } else if (closed) {
7661 mono_mb_emit_icon (mb, (gint32)target_handle);
7662 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7665 for (i = 0; i < sig->param_count; i++) {
7666 MonoType *t = sig->params [i];
7668 if (tmp_locals [i]) {
7670 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7672 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7675 mono_mb_emit_ldarg (mb, i);
7678 mono_mb_emit_managed_call (mb, method, NULL);
7680 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7681 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7682 } else if (!sig->ret->byref) {
7683 switch (sig->ret->type) {
7684 case MONO_TYPE_VOID:
7686 case MONO_TYPE_BOOLEAN:
7689 case MONO_TYPE_CHAR:
7701 case MONO_TYPE_OBJECT:
7702 mono_mb_emit_stloc (mb, 3);
7704 case MONO_TYPE_STRING:
7705 csig->ret = &mono_defaults.int_class->byval_arg;
7706 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7708 case MONO_TYPE_VALUETYPE:
7709 case MONO_TYPE_CLASS:
7710 case MONO_TYPE_SZARRAY:
7711 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7714 g_warning ("return type 0x%02x unknown", sig->ret->type);
7715 g_assert_not_reached ();
7718 mono_mb_emit_stloc (mb, 3);
7721 /* Convert byref arguments back */
7722 for (i = 0; i < sig->param_count; i ++) {
7723 MonoType *t = sig->params [i];
7724 MonoMarshalSpec *spec = mspecs [i + 1];
7726 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7727 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7729 else if (t->byref) {
7731 case MONO_TYPE_CLASS:
7732 case MONO_TYPE_VALUETYPE:
7733 case MONO_TYPE_OBJECT:
7734 case MONO_TYPE_STRING:
7735 case MONO_TYPE_BOOLEAN:
7736 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7742 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7743 /* The [Out] information is encoded in the delegate signature */
7745 case MONO_TYPE_SZARRAY:
7746 case MONO_TYPE_CLASS:
7747 case MONO_TYPE_VALUETYPE:
7748 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7751 g_assert_not_reached ();
7757 /* XXX merge reset_blocking_end with detach */
7758 mono_mb_emit_ldloc (mb, coop_gc_var);
7759 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
7762 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7763 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7765 if (m->retobj_var) {
7766 mono_mb_emit_ldloc (mb, m->retobj_var);
7767 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7768 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7771 if (!MONO_TYPE_IS_VOID(sig->ret))
7772 mono_mb_emit_ldloc (mb, 3);
7773 mono_mb_emit_byte (mb, CEE_RET);
7782 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7784 MonoMethodSignature *sig;
7789 * Under windows, delegates passed to native code must use the STDCALL
7790 * calling convention.
7792 csig->call_convention = MONO_CALL_STDCALL;
7795 sig = mono_method_signature (method);
7797 /* Change default calling convention if needed */
7798 /* Why is this a modopt ? */
7799 if (sig->ret && sig->ret->num_mods) {
7800 for (i = 0; i < sig->ret->num_mods; ++i) {
7802 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7803 g_assert (mono_error_ok (&error));
7804 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7805 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7806 csig->call_convention = MONO_CALL_C;
7807 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7808 csig->call_convention = MONO_CALL_STDCALL;
7809 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7810 csig->call_convention = MONO_CALL_FASTCALL;
7811 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7812 csig->call_convention = MONO_CALL_THISCALL;
7819 * generates IL code to call managed methods from unmanaged code
7820 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7823 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
7825 static MonoClass *UnmanagedFunctionPointerAttribute;
7826 MonoMethodSignature *sig, *csig, *invoke_sig;
7827 MonoMethodBuilder *mb;
7828 MonoMethod *res, *invoke;
7829 MonoMarshalSpec **mspecs;
7830 MonoMethodPInvoke piinfo;
7833 EmitMarshalContext m;
7835 g_assert (method != NULL);
7836 g_assert (!mono_method_signature (method)->pinvoke);
7839 * FIXME: Should cache the method+delegate type pair, since the same method
7840 * could be called with different delegates, thus different marshalling
7843 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
7844 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
7847 invoke = mono_get_delegate_invoke (delegate_klass);
7848 invoke_sig = mono_method_signature (invoke);
7850 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7851 mono_method_get_marshal_info (invoke, mspecs);
7853 sig = mono_method_signature (method);
7855 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7857 /*the target gchandle must be the first entry after size and the wrapper itself.*/
7858 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
7860 /* we copy the signature, so that we can modify it */
7862 /* Need to free this later */
7863 csig = mono_metadata_signature_dup (invoke_sig);
7865 csig = signature_dup (method->klass->image, invoke_sig);
7869 memset (&m, 0, sizeof (m));
7875 m.image = method->klass->image;
7877 mono_marshal_set_callconv_from_modopt (invoke, csig);
7879 /* Handle the UnmanagedFunctionPointerAttribute */
7880 if (!UnmanagedFunctionPointerAttribute)
7881 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
7883 /* The attribute is only available in Net 2.0 */
7884 if (UnmanagedFunctionPointerAttribute) {
7885 MonoCustomAttrInfo *cinfo;
7886 MonoCustomAttrEntry *attr;
7889 * The pinvoke attributes are stored in a real custom attribute. Obtain the
7890 * contents of the attribute without constructing it, as that might not be
7891 * possible when running in cross-compiling mode.
7893 cinfo = mono_custom_attrs_from_class (delegate_klass);
7896 for (i = 0; i < cinfo->num_attrs; ++i) {
7897 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
7898 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
7899 attr = &cinfo->attrs [i];
7905 MonoArray *typed_args, *named_args;
7906 CattrNamedArg *arginfo;
7910 MonoBoolean set_last_error = 0;
7913 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
7914 g_assert (mono_error_ok (&error));
7915 g_assert (mono_array_length (typed_args) == 1);
7918 o = mono_array_get (typed_args, MonoObject*, 0);
7919 call_conv = *(gint32*)mono_object_unbox (o);
7922 for (i = 0; i < mono_array_length (named_args); ++i) {
7923 CattrNamedArg *narg = &arginfo [i];
7925 o = mono_array_get (named_args, MonoObject*, i);
7927 g_assert (narg->field);
7928 if (!strcmp (narg->field->name, "CharSet")) {
7929 charset = *(gint32*)mono_object_unbox (o);
7930 } else if (!strcmp (narg->field->name, "SetLastError")) {
7931 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
7932 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
7933 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
7934 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
7935 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
7937 g_assert_not_reached ();
7943 memset (&piinfo, 0, sizeof (piinfo));
7945 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
7947 csig->call_convention = call_conv - 1;
7950 if (cinfo && !cinfo->cached)
7951 mono_custom_attrs_free (cinfo);
7954 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
7956 if (!target_handle) {
7959 // FIXME: Associate it with the method+delegate_klass pair
7960 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7961 info->d.native_to_managed.method = method;
7962 info->d.native_to_managed.klass = delegate_klass;
7964 res = mono_mb_create_and_cache_full (cache, method,
7965 mb, csig, sig->param_count + 16,
7971 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
7975 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7977 mono_metadata_free_marshal_spec (mspecs [i]);
7980 /* code_for (res); */
7986 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
7989 MonoMethodSignature *sig;
7990 MonoMethodBuilder *mb;
7995 method = mono_get_method (image, token, NULL);
7998 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
7999 MonoMethodSignature *csig;
8000 MonoMarshalSpec **mspecs;
8001 EmitMarshalContext m;
8003 sig = mono_method_signature (method);
8004 g_assert (!sig->hasthis);
8006 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8007 mono_method_get_marshal_info (method, mspecs);
8009 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8010 csig = signature_dup (image, sig);
8014 memset (&m, 0, sizeof (m));
8022 mono_marshal_set_callconv_from_modopt (method, csig);
8024 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8026 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8031 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8034 for (i = sig->param_count; i >= 0; i--)
8036 mono_metadata_free_marshal_spec (mspecs [i]);
8039 return mono_compile_method (method);
8042 sig = mono_method_signature (method);
8043 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8045 param_count = sig->param_count + sig->hasthis;
8047 for (i = 0; i < param_count; i++)
8048 mono_mb_emit_ldarg (mb, i);
8050 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8051 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8053 mono_mb_emit_op (mb, CEE_CALL, method);
8054 mono_mb_emit_byte (mb, CEE_RET);
8059 method = mono_mb_create (mb, sig, param_count, NULL);
8062 return mono_compile_method (method);
8066 * This does the equivalent of mono_object_castclass_with_cache.
8067 * The wrapper info for the wrapper is a WrapperInfo structure.
8070 mono_marshal_get_castclass_with_cache (void)
8072 static MonoMethod *cached;
8074 MonoMethodBuilder *mb;
8075 MonoMethodSignature *sig;
8076 int return_null_pos, cache_miss_pos, invalid_cast_pos;
8082 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8083 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8084 sig->params [0] = &mono_defaults.object_class->byval_arg;
8085 sig->params [1] = &mono_defaults.int_class->byval_arg;
8086 sig->params [2] = &mono_defaults.int_class->byval_arg;
8087 sig->ret = &mono_defaults.object_class->byval_arg;
8091 /* allocate local 0 (pointer) obj_vtable */
8092 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8095 mono_mb_emit_ldarg (mb, 0);
8096 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8098 /*obj_vtable = obj->vtable;*/
8099 mono_mb_emit_ldarg (mb, 0);
8100 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8101 mono_mb_emit_byte (mb, CEE_LDIND_I);
8102 mono_mb_emit_stloc (mb, 0);
8105 mono_mb_emit_ldarg (mb, 2);
8106 mono_mb_emit_byte (mb, CEE_LDIND_I);
8107 mono_mb_emit_ldloc (mb, 0);
8109 /*if (*cache == obj_vtable)*/
8110 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8113 mono_mb_emit_ldarg (mb, 0);
8114 mono_mb_emit_byte (mb, CEE_RET);
8116 mono_mb_patch_branch (mb, cache_miss_pos);
8117 /*if (mono_object_isinst (obj, klass)) */
8118 mono_mb_emit_ldarg (mb, 0);
8119 mono_mb_emit_ldarg (mb, 1);
8120 mono_mb_emit_icall (mb, mono_object_isinst);
8121 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8123 /**cache = obj_vtable;*/
8124 mono_mb_emit_ldarg (mb, 2);
8125 mono_mb_emit_ldloc (mb, 0);
8126 mono_mb_emit_byte (mb, CEE_STIND_I);
8129 mono_mb_emit_ldarg (mb, 0);
8130 mono_mb_emit_byte (mb, CEE_RET);
8133 mono_mb_patch_branch (mb, invalid_cast_pos);
8134 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8137 mono_mb_patch_branch (mb, return_null_pos);
8138 mono_mb_emit_byte (mb, CEE_LDNULL);
8139 mono_mb_emit_byte (mb, CEE_RET);
8140 #endif /* DISABLE_JIT */
8142 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8143 res = mono_mb_create (mb, sig, 8, info);
8146 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8147 mono_free_method (res);
8148 mono_metadata_free_method_signature (sig);
8156 * This does the equivalent of mono_object_isinst_with_cache.
8157 * The wrapper info for the wrapper is a WrapperInfo structure.
8160 mono_marshal_get_isinst_with_cache (void)
8162 static MonoMethod *cached;
8164 MonoMethodBuilder *mb;
8165 MonoMethodSignature *sig;
8166 int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos;
8172 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8173 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8174 sig->params [0] = &mono_defaults.object_class->byval_arg;
8175 sig->params [1] = &mono_defaults.int_class->byval_arg;
8176 sig->params [2] = &mono_defaults.int_class->byval_arg;
8177 sig->ret = &mono_defaults.object_class->byval_arg;
8181 /* allocate local 0 (pointer) obj_vtable */
8182 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8183 /* allocate local 1 (pointer) cached_vtable */
8184 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8187 mono_mb_emit_ldarg (mb, 0);
8188 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8190 /*obj_vtable = obj->vtable;*/
8191 mono_mb_emit_ldarg (mb, 0);
8192 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8193 mono_mb_emit_byte (mb, CEE_LDIND_I);
8194 mono_mb_emit_stloc (mb, 0);
8196 /* cached_vtable = *cache*/
8197 mono_mb_emit_ldarg (mb, 2);
8198 mono_mb_emit_byte (mb, CEE_LDIND_I);
8199 mono_mb_emit_stloc (mb, 1);
8201 mono_mb_emit_ldloc (mb, 1);
8202 mono_mb_emit_byte (mb, CEE_LDC_I4);
8203 mono_mb_emit_i4 (mb, ~0x1);
8204 mono_mb_emit_byte (mb, CEE_CONV_I);
8205 mono_mb_emit_byte (mb, CEE_AND);
8206 mono_mb_emit_ldloc (mb, 0);
8207 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8208 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8210 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8211 mono_mb_emit_ldloc (mb, 1);
8212 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8213 mono_mb_emit_byte (mb, CEE_CONV_U);
8214 mono_mb_emit_byte (mb, CEE_AND);
8215 negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8218 mono_mb_emit_ldarg (mb, 0);
8219 cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8222 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8223 mono_mb_emit_byte (mb, CEE_LDNULL);
8225 mono_mb_patch_branch (mb, cache_hit_pos);
8226 mono_mb_emit_byte (mb, CEE_RET);
8228 mono_mb_patch_branch (mb, cache_miss_pos);
8229 /*if (mono_object_isinst (obj, klass)) */
8230 mono_mb_emit_ldarg (mb, 0);
8231 mono_mb_emit_ldarg (mb, 1);
8232 mono_mb_emit_icall (mb, mono_object_isinst);
8233 not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8235 /**cache = obj_vtable;*/
8236 mono_mb_emit_ldarg (mb, 2);
8237 mono_mb_emit_ldloc (mb, 0);
8238 mono_mb_emit_byte (mb, CEE_STIND_I);
8241 mono_mb_emit_ldarg (mb, 0);
8242 mono_mb_emit_byte (mb, CEE_RET);
8245 mono_mb_patch_branch (mb, not_an_instance_pos);
8246 /* *cache = (gpointer)(obj_vtable | 0x1);*/
8247 mono_mb_emit_ldarg (mb, 2);
8248 /*obj_vtable | 0x1*/
8249 mono_mb_emit_ldloc (mb, 0);
8250 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8251 mono_mb_emit_byte (mb, CEE_CONV_U);
8252 mono_mb_emit_byte (mb, CEE_OR);
8255 mono_mb_emit_byte (mb, CEE_STIND_I);
8258 mono_mb_patch_branch (mb, return_null_pos);
8259 mono_mb_emit_byte (mb, CEE_LDNULL);
8260 mono_mb_emit_byte (mb, CEE_RET);
8263 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8264 res = mono_mb_create (mb, sig, 8, info);
8267 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8268 mono_free_method (res);
8269 mono_metadata_free_method_signature (sig);
8277 * mono_marshal_get_isinst:
8278 * @klass: the type of the field
8280 * This method generates a function which can be used to check if an object is
8281 * an instance of the given type, icluding the case where the object is a proxy.
8282 * The generated function has the following signature:
8283 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8286 mono_marshal_get_isinst (MonoClass *klass)
8288 static MonoMethodSignature *isint_sig = NULL;
8292 int pos_was_ok, pos_end;
8293 #ifndef DISABLE_REMOTING
8294 int pos_end2, pos_failed;
8297 MonoMethodBuilder *mb;
8299 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8300 if ((res = mono_marshal_find_in_cache (cache, klass)))
8304 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8305 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8306 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8307 isint_sig->pinvoke = 0;
8310 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8311 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8314 mb->method->save_lmf = 1;
8317 /* check if the object is a proxy that needs special cast */
8318 mono_mb_emit_ldarg (mb, 0);
8319 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8320 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8322 /* The result of MONO_CISINST can be:
8323 0) the type check succeeded
8324 1) the type check did not succeed
8325 2) a CanCastTo call is needed */
8326 #ifndef DISABLE_REMOTING
8327 mono_mb_emit_byte (mb, CEE_DUP);
8328 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8330 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8331 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8333 /* get the real proxy from the transparent proxy*/
8335 mono_mb_emit_ldarg (mb, 0);
8336 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8337 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8341 mono_mb_patch_branch (mb, pos_failed);
8342 mono_mb_emit_byte (mb, CEE_LDNULL);
8343 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8347 mono_mb_patch_branch (mb, pos_was_ok);
8348 mono_mb_emit_byte (mb, CEE_POP);
8349 mono_mb_emit_ldarg (mb, 0);
8353 mono_mb_patch_branch (mb, pos_end);
8354 mono_mb_patch_branch (mb, pos_end2);
8355 mono_mb_emit_byte (mb, CEE_RET);
8357 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8361 mono_mb_emit_byte (mb, CEE_LDNULL);
8362 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8366 mono_mb_patch_branch (mb, pos_was_ok);
8367 mono_mb_emit_ldarg (mb, 0);
8371 mono_mb_patch_branch (mb, pos_end);
8372 mono_mb_emit_byte (mb, CEE_RET);
8373 #endif /* DISABLE_REMOTING */
8374 #endif /* DISABLE_JIT */
8376 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8377 info->d.proxy.klass = klass;
8378 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8385 * mono_marshal_get_castclass:
8386 * @klass: the type of the field
8388 * This method generates a function which can be used to cast an object to
8389 * an instance of the given type, icluding the case where the object is a proxy.
8390 * The generated function has the following signature:
8391 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8392 * The wrapper info for the wrapper is a WrapperInfo structure.
8395 mono_marshal_get_castclass (MonoClass *klass)
8397 static MonoMethodSignature *castclass_sig = NULL;
8400 #ifndef DISABLE_REMOTING
8401 int pos_was_ok, pos_was_ok2;
8404 MonoMethodBuilder *mb;
8407 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8408 if ((res = mono_marshal_find_in_cache (cache, klass)))
8411 if (!castclass_sig) {
8412 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8413 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8414 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8415 castclass_sig->pinvoke = 0;
8418 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8419 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8422 mb->method->save_lmf = 1;
8425 /* check if the object is a proxy that needs special cast */
8426 mono_mb_emit_ldarg (mb, 0);
8427 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8428 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8430 /* The result of MONO_CCASTCLASS can be:
8431 0) the cast is valid
8432 1) cast of unknown proxy type
8433 or an exception if the cast is is invalid
8435 #ifndef DISABLE_REMOTING
8436 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8438 /* get the real proxy from the transparent proxy*/
8440 mono_mb_emit_ldarg (mb, 0);
8441 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8442 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8445 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8448 mono_mb_patch_branch (mb, pos_was_ok);
8449 mono_mb_patch_branch (mb, pos_was_ok2);
8451 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8452 mono_mb_emit_byte (mb, CEE_POP);
8453 #endif /* DISABLE_REMOTING */
8455 mono_mb_emit_ldarg (mb, 0);
8458 mono_mb_emit_byte (mb, CEE_RET);
8459 #endif /* DISABLE_JIT */
8461 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8463 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8471 * mono_marshal_get_struct_to_ptr:
8474 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8475 * The wrapper info for the wrapper is a WrapperInfo structure.
8478 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8480 MonoMethodBuilder *mb;
8481 static MonoMethod *stoptr = NULL;
8485 g_assert (klass != NULL);
8487 mono_marshal_load_type_info (klass);
8489 if (klass->marshal_info->str_to_ptr)
8490 return klass->marshal_info->str_to_ptr;
8493 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8496 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8499 if (klass->blittable) {
8500 mono_mb_emit_byte (mb, CEE_LDARG_1);
8501 mono_mb_emit_byte (mb, CEE_LDARG_0);
8502 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8503 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8504 mono_mb_emit_byte (mb, CEE_PREFIX1);
8505 mono_mb_emit_byte (mb, CEE_CPBLK);
8508 /* allocate local 0 (pointer) src_ptr */
8509 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8510 /* allocate local 1 (pointer) dst_ptr */
8511 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8512 /* allocate local 2 (boolean) delete_old */
8513 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8514 mono_mb_emit_byte (mb, CEE_LDARG_2);
8515 mono_mb_emit_stloc (mb, 2);
8517 /* initialize src_ptr to point to the start of object data */
8518 mono_mb_emit_byte (mb, CEE_LDARG_0);
8519 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8520 mono_mb_emit_stloc (mb, 0);
8522 /* initialize dst_ptr */
8523 mono_mb_emit_byte (mb, CEE_LDARG_1);
8524 mono_mb_emit_stloc (mb, 1);
8526 emit_struct_conv (mb, klass, FALSE);
8529 mono_mb_emit_byte (mb, CEE_RET);
8531 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8532 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8535 klass->marshal_info->str_to_ptr = res;
8540 * mono_marshal_get_ptr_to_struct:
8543 * generates IL code for PtrToStructure (IntPtr src, object structure)
8544 * The wrapper info for the wrapper is a WrapperInfo structure.
8547 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8549 MonoMethodBuilder *mb;
8550 static MonoMethodSignature *ptostr = NULL;
8554 g_assert (klass != NULL);
8556 mono_marshal_load_type_info (klass);
8558 if (klass->marshal_info->ptr_to_str)
8559 return klass->marshal_info->ptr_to_str;
8562 MonoMethodSignature *sig;
8564 /* Create the signature corresponding to
8565 static void PtrToStructure (IntPtr ptr, object structure);
8566 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8567 sig = mono_create_icall_signature ("void ptr object");
8568 sig = signature_dup (mono_defaults.corlib, sig);
8570 mono_memory_barrier ();
8574 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8577 if (klass->blittable) {
8578 mono_mb_emit_byte (mb, CEE_LDARG_1);
8579 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8580 mono_mb_emit_byte (mb, CEE_LDARG_0);
8581 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8582 mono_mb_emit_byte (mb, CEE_PREFIX1);
8583 mono_mb_emit_byte (mb, CEE_CPBLK);
8586 /* allocate local 0 (pointer) src_ptr */
8587 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8588 /* allocate local 1 (pointer) dst_ptr */
8589 mono_mb_add_local (mb, &klass->this_arg);
8591 /* initialize src_ptr to point to the start of object data */
8592 mono_mb_emit_byte (mb, CEE_LDARG_0);
8593 mono_mb_emit_stloc (mb, 0);
8595 /* initialize dst_ptr */
8596 mono_mb_emit_byte (mb, CEE_LDARG_1);
8597 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8598 mono_mb_emit_stloc (mb, 1);
8600 emit_struct_conv (mb, klass, TRUE);
8603 mono_mb_emit_byte (mb, CEE_RET);
8605 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8606 res = mono_mb_create (mb, ptostr, 0, info);
8609 klass->marshal_info->ptr_to_str = res;
8614 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8615 * This is used to avoid infinite recursion since it is hard to determine where to
8616 * replace a method with its synchronized wrapper, and where not.
8617 * The runtime should execute METHOD instead of the wrapper.
8618 * The wrapper info for the wrapper is a WrapperInfo structure.
8621 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8623 MonoMethodBuilder *mb;
8625 MonoMethodSignature *sig;
8627 MonoGenericContext *ctx = NULL;
8628 MonoGenericContainer *container = NULL;
8630 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8631 ctx = &((MonoMethodInflated*)method)->context;
8632 method = ((MonoMethodInflated*)method)->declaring;
8633 container = mono_method_get_generic_container (method);
8635 container = method->klass->generic_container;
8636 g_assert (container);
8639 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8641 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8642 mono_mb_emit_byte (mb, CEE_RET);
8644 sig = signature_dup (method->klass->image, mono_method_signature (method));
8646 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8647 info->d.synchronized_inner.method = method;
8648 res = mono_mb_create (mb, sig, 0, info);
8652 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8653 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8659 * generates IL code for the synchronized wrapper: the generated method
8660 * calls METHOD while locking 'this' or the parent type.
8663 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8665 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8666 MonoMethodSignature *sig;
8667 MonoExceptionClause *clause;
8668 MonoMethodBuilder *mb;
8671 int i, pos, this_local, ret_local = 0;
8672 MonoGenericContext *ctx = NULL;
8673 MonoMethod *orig_method = NULL;
8674 MonoGenericContainer *container = NULL;
8678 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8681 /* FIXME: Support generic methods too */
8682 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8683 orig_method = method;
8684 ctx = &((MonoMethodInflated*)method)->context;
8685 method = ((MonoMethodInflated*)method)->declaring;
8686 container = mono_method_get_generic_container (method);
8688 container = method->klass->generic_container;
8689 g_assert (container);
8696 cache = get_cache (&method->klass->image->synchronized_generic_cache, mono_aligned_addr_hash, NULL);
8697 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8701 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8702 if ((res = mono_marshal_find_in_cache (cache, method)))
8706 sig = signature_dup (method->klass->image, mono_method_signature (method));
8709 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8713 if (!MONO_TYPE_IS_VOID (sig->ret))
8714 ret_local = mono_mb_add_local (mb, sig->ret);
8717 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8718 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8720 /* This will throw the type load exception when the wrapper is compiled */
8721 mono_mb_emit_byte (mb, CEE_LDNULL);
8722 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8723 mono_mb_emit_byte (mb, CEE_POP);
8725 if (!MONO_TYPE_IS_VOID (sig->ret))
8726 mono_mb_emit_ldloc (mb, ret_local);
8727 mono_mb_emit_byte (mb, CEE_RET);
8730 res = mono_mb_create_and_cache (cache, method,
8731 mb, sig, sig->param_count + 16);
8739 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8741 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8742 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8745 mono_marshal_lock ();
8747 if (!enter_method) {
8748 MonoMethodDesc *desc;
8750 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8751 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8752 g_assert (enter_method);
8753 mono_method_desc_free (desc);
8755 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8756 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8757 g_assert (exit_method);
8758 mono_method_desc_free (desc);
8760 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8761 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8762 g_assert (gettypefromhandle_method);
8763 mono_method_desc_free (desc);
8766 mono_marshal_unlock ();
8769 /* Push this or the type object */
8770 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8771 /* We have special handling for this in the JIT */
8772 int index = mono_mb_add_data (mb, method->klass);
8773 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8774 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8775 mono_mb_emit_i4 (mb, index);
8777 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8780 mono_mb_emit_ldarg (mb, 0);
8781 mono_mb_emit_stloc (mb, this_local);
8783 /* Call Monitor::Enter() */
8784 mono_mb_emit_ldloc (mb, this_local);
8785 mono_mb_emit_managed_call (mb, enter_method, NULL);
8787 clause->try_offset = mono_mb_get_label (mb);
8789 /* Call the method */
8791 mono_mb_emit_ldarg (mb, 0);
8792 for (i = 0; i < sig->param_count; i++)
8793 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8797 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
8798 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8800 mono_mb_emit_managed_call (mb, method, NULL);
8803 if (!MONO_TYPE_IS_VOID (sig->ret))
8804 mono_mb_emit_stloc (mb, ret_local);
8806 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8808 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8809 clause->handler_offset = mono_mb_get_label (mb);
8811 /* Call Monitor::Exit() */
8812 mono_mb_emit_ldloc (mb, this_local);
8813 mono_mb_emit_managed_call (mb, exit_method, NULL);
8814 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8816 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8818 mono_mb_patch_branch (mb, pos);
8819 if (!MONO_TYPE_IS_VOID (sig->ret))
8820 mono_mb_emit_ldloc (mb, ret_local);
8821 mono_mb_emit_byte (mb, CEE_RET);
8823 mono_mb_set_clauses (mb, 1, clause);
8828 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
8829 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
8831 res = mono_mb_create_and_cache (cache, method,
8832 mb, sig, sig->param_count + 16);
8841 * the returned method calls 'method' unboxing the this argument
8844 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8846 MonoMethodSignature *sig = mono_method_signature (method);
8848 MonoMethodBuilder *mb;
8852 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8853 if ((res = mono_marshal_find_in_cache (cache, method)))
8856 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8858 g_assert (sig->hasthis);
8861 mono_mb_emit_ldarg (mb, 0);
8862 mono_mb_emit_icon (mb, sizeof (MonoObject));
8863 mono_mb_emit_byte (mb, CEE_ADD);
8864 for (i = 0; i < sig->param_count; ++i)
8865 mono_mb_emit_ldarg (mb, i + 1);
8866 mono_mb_emit_managed_call (mb, method, NULL);
8867 mono_mb_emit_byte (mb, CEE_RET);
8870 res = mono_mb_create_and_cache (cache, method,
8871 mb, sig, sig->param_count + 16);
8874 /* code_for (res); */
8880 STELEMREF_OBJECT, /*no check at all*/
8881 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
8882 STELEMREF_CLASS, /*only the klass->parents check*/
8883 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
8884 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
8885 STELEMREF_KIND_COUNT
8888 static const char *strelemref_wrapper_name[] = {
8889 "object", "sealed_class", "class", "interface", "complex"
8893 is_monomorphic_array (MonoClass *klass)
8895 MonoClass *element_class;
8896 if (klass->rank != 1)
8899 element_class = klass->element_class;
8900 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
8904 get_virtual_stelemref_kind (MonoClass *element_class)
8906 if (element_class == mono_defaults.object_class)
8907 return STELEMREF_OBJECT;
8908 if (is_monomorphic_array (element_class))
8909 return STELEMREF_SEALED_CLASS;
8910 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
8911 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
8912 #ifdef COMPRESSED_INTERFACE_BITMAP
8913 return STELEMREF_COMPLEX;
8915 return STELEMREF_INTERFACE;
8917 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
8918 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
8919 return STELEMREF_COMPLEX;
8920 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
8921 return STELEMREF_SEALED_CLASS;
8922 return STELEMREF_CLASS;
8928 load_array_element_address (MonoMethodBuilder *mb)
8930 mono_mb_emit_ldarg (mb, 0);
8931 mono_mb_emit_ldarg (mb, 1);
8932 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8936 load_array_class (MonoMethodBuilder *mb, int aklass)
8938 mono_mb_emit_ldarg (mb, 0);
8939 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8940 mono_mb_emit_byte (mb, CEE_LDIND_I);
8941 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8942 mono_mb_emit_byte (mb, CEE_LDIND_I);
8943 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
8944 mono_mb_emit_byte (mb, CEE_LDIND_I);
8945 mono_mb_emit_stloc (mb, aklass);
8949 load_value_class (MonoMethodBuilder *mb, int vklass)
8951 mono_mb_emit_ldarg (mb, 2);
8952 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8953 mono_mb_emit_byte (mb, CEE_LDIND_I);
8954 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8955 mono_mb_emit_byte (mb, CEE_LDIND_I);
8956 mono_mb_emit_stloc (mb, vklass);
8962 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
8964 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
8965 printf ("slow vstore of %s\n", name);
8971 * The wrapper info for the wrapper is a WrapperInfo structure.
8974 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
8975 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
8976 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
8977 * - Add a case for arrays of arrays.
8980 get_virtual_stelemref_wrapper (int kind)
8982 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
8983 static MonoMethodSignature *signature;
8984 MonoMethodBuilder *mb;
8987 const char *param_names [16];
8989 int aklass, vklass, vtable, uiid;
8990 int array_slot_addr;
8993 if (cached_methods [kind])
8994 return cached_methods [kind];
8996 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
8997 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9001 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9003 /* void this::stelemref (size_t idx, void* value) */
9004 sig->ret = &mono_defaults.void_class->byval_arg;
9005 sig->hasthis = TRUE;
9006 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9007 sig->params [1] = &mono_defaults.object_class->byval_arg;
9012 param_names [0] = "index";
9013 param_names [1] = "value";
9014 mono_mb_set_param_names (mb, param_names);
9016 /*For now simply call plain old stelemref*/
9018 case STELEMREF_OBJECT:
9019 /* ldelema (implicit bound check) */
9020 load_array_element_address (mb);
9022 mono_mb_emit_ldarg (mb, 2);
9023 mono_mb_emit_byte (mb, CEE_STIND_REF);
9024 mono_mb_emit_byte (mb, CEE_RET);
9027 case STELEMREF_COMPLEX:
9029 <ldelema (bound check)>
9032 if (!mono_object_isinst (value, aklass))
9036 *array_slot_addr = value;
9039 throw new ArrayTypeMismatchException ();
9042 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9043 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9047 /*Use this to debug/record stores that are going thru the slow path*/
9048 MonoMethodSignature *csig;
9049 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9050 csig->ret = &mono_defaults.void_class->byval_arg;
9051 csig->params [0] = &mono_defaults.object_class->byval_arg;
9052 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9053 csig->params [2] = &mono_defaults.object_class->byval_arg;
9054 mono_mb_emit_ldarg (mb, 0);
9055 mono_mb_emit_ldarg (mb, 1);
9056 mono_mb_emit_ldarg (mb, 2);
9057 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9061 /* ldelema (implicit bound check) */
9062 load_array_element_address (mb);
9063 mono_mb_emit_stloc (mb, array_slot_addr);
9065 /* if (!value) goto do_store */
9066 mono_mb_emit_ldarg (mb, 2);
9067 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9069 /* aklass = array->vtable->klass->element_class */
9070 load_array_class (mb, aklass);
9072 /*if (mono_object_isinst (value, aklass)) */
9073 mono_mb_emit_ldarg (mb, 2);
9074 mono_mb_emit_ldloc (mb, aklass);
9075 mono_mb_emit_icall (mb, mono_object_isinst);
9076 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9079 mono_mb_patch_branch (mb, b1);
9080 mono_mb_emit_ldloc (mb, array_slot_addr);
9081 mono_mb_emit_ldarg (mb, 2);
9082 mono_mb_emit_byte (mb, CEE_STIND_REF);
9083 mono_mb_emit_byte (mb, CEE_RET);
9086 mono_mb_patch_branch (mb, b2);
9088 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9091 case STELEMREF_SEALED_CLASS:
9093 <ldelema (bound check)>
9097 aklass = array->vtable->klass->element_class;
9098 vklass = value->vtable->klass;
9100 if (vklass != aklass)
9104 *array_slot_addr = value;
9107 throw new ArrayTypeMismatchException ();
9109 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9110 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9111 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9114 /* ldelema (implicit bound check) */
9115 load_array_element_address (mb);
9116 mono_mb_emit_stloc (mb, array_slot_addr);
9118 /* if (!value) goto do_store */
9119 mono_mb_emit_ldarg (mb, 2);
9120 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9122 /* aklass = array->vtable->klass->element_class */
9123 load_array_class (mb, aklass);
9125 /* vklass = value->vtable->klass */
9126 load_value_class (mb, vklass);
9128 /*if (vklass != aklass) goto do_exception; */
9129 mono_mb_emit_ldloc (mb, aklass);
9130 mono_mb_emit_ldloc (mb, vklass);
9131 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9134 mono_mb_patch_branch (mb, b1);
9135 mono_mb_emit_ldloc (mb, array_slot_addr);
9136 mono_mb_emit_ldarg (mb, 2);
9137 mono_mb_emit_byte (mb, CEE_STIND_REF);
9138 mono_mb_emit_byte (mb, CEE_RET);
9141 mono_mb_patch_branch (mb, b2);
9142 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9145 case STELEMREF_CLASS:
9148 <ldelema (bound check)>
9152 aklass = array->vtable->klass->element_class;
9153 vklass = value->vtable->klass;
9155 if (vklass->idepth < aklass->idepth)
9158 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9162 *array_slot_addr = value;
9166 throw new ArrayTypeMismatchException ();
9168 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9169 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9170 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9172 /* ldelema (implicit bound check) */
9173 load_array_element_address (mb);
9174 mono_mb_emit_stloc (mb, array_slot_addr);
9176 /* if (!value) goto do_store */
9177 mono_mb_emit_ldarg (mb, 2);
9178 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9180 /* aklass = array->vtable->klass->element_class */
9181 load_array_class (mb, aklass);
9183 /* vklass = value->vtable->klass */
9184 load_value_class (mb, vklass);
9186 /*if (mono_object_isinst (value, aklass)) */
9187 mono_mb_emit_ldarg (mb, 2);
9188 mono_mb_emit_ldloc (mb, aklass);
9189 mono_mb_emit_icall (mb, mono_object_isinst);
9190 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9192 /* if (vklass->idepth < aklass->idepth) goto failue */
9193 mono_mb_emit_ldloc (mb, vklass);
9194 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9195 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9197 mono_mb_emit_ldloc (mb, aklass);
9198 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9199 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9201 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9203 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9204 mono_mb_emit_ldloc (mb, vklass);
9205 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9206 mono_mb_emit_byte (mb, CEE_LDIND_I);
9208 mono_mb_emit_ldloc (mb, aklass);
9209 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9210 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9211 mono_mb_emit_icon (mb, 1);
9212 mono_mb_emit_byte (mb, CEE_SUB);
9213 mono_mb_emit_icon (mb, sizeof (void*));
9214 mono_mb_emit_byte (mb, CEE_MUL);
9215 mono_mb_emit_byte (mb, CEE_ADD);
9216 mono_mb_emit_byte (mb, CEE_LDIND_I);
9218 mono_mb_emit_ldloc (mb, aklass);
9219 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9222 mono_mb_patch_branch (mb, b1);
9223 mono_mb_emit_ldloc (mb, array_slot_addr);
9224 mono_mb_emit_ldarg (mb, 2);
9225 mono_mb_emit_byte (mb, CEE_STIND_REF);
9226 mono_mb_emit_byte (mb, CEE_RET);
9229 mono_mb_patch_branch (mb, b2);
9230 mono_mb_patch_branch (mb, b3);
9232 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9235 case STELEMREF_INTERFACE:
9242 klass = array->obj.vtable->klass->element_class;
9244 uiid = klass->interface_id;
9245 if (uiid > vt->max_interface_id)
9247 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9250 mono_array_setref (array, index, value);
9253 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9255 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9256 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9257 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9258 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9260 /* ldelema (implicit bound check) */
9261 load_array_element_address (mb);
9262 mono_mb_emit_stloc (mb, array_slot_addr);
9264 /* if (!value) goto do_store */
9265 mono_mb_emit_ldarg (mb, 2);
9266 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9268 /* klass = array->vtable->klass->element_class */
9269 load_array_class (mb, aklass);
9271 /* vt = value->vtable */
9272 mono_mb_emit_ldarg (mb, 2);
9273 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9274 mono_mb_emit_byte (mb, CEE_LDIND_I);
9275 mono_mb_emit_stloc (mb, vtable);
9277 /* uiid = klass->interface_id; */
9278 mono_mb_emit_ldloc (mb, aklass);
9279 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9280 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9281 mono_mb_emit_stloc (mb, uiid);
9283 /*if (uiid > vt->max_interface_id)*/
9284 mono_mb_emit_ldloc (mb, uiid);
9285 mono_mb_emit_ldloc (mb, vtable);
9286 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9287 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9288 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9290 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9292 /*vt->interface_bitmap*/
9293 mono_mb_emit_ldloc (mb, vtable);
9294 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9295 mono_mb_emit_byte (mb, CEE_LDIND_I);
9298 mono_mb_emit_ldloc (mb, uiid);
9299 mono_mb_emit_icon (mb, 3);
9300 mono_mb_emit_byte (mb, CEE_SHR_UN);
9302 /*vt->interface_bitmap [(uiid) >> 3]*/
9303 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9304 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9306 /*(1 << ((uiid)&7)))*/
9307 mono_mb_emit_icon (mb, 1);
9308 mono_mb_emit_ldloc (mb, uiid);
9309 mono_mb_emit_icon (mb, 7);
9310 mono_mb_emit_byte (mb, CEE_AND);
9311 mono_mb_emit_byte (mb, CEE_SHL);
9313 /*bitwise and the whole thing*/
9314 mono_mb_emit_byte (mb, CEE_AND);
9315 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9318 mono_mb_patch_branch (mb, b1);
9319 mono_mb_emit_ldloc (mb, array_slot_addr);
9320 mono_mb_emit_ldarg (mb, 2);
9321 mono_mb_emit_byte (mb, CEE_STIND_REF);
9322 mono_mb_emit_byte (mb, CEE_RET);
9325 mono_mb_patch_branch (mb, b2);
9326 mono_mb_patch_branch (mb, b3);
9327 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9331 mono_mb_emit_ldarg (mb, 0);
9332 mono_mb_emit_ldarg (mb, 1);
9333 mono_mb_emit_ldarg (mb, 2);
9334 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9335 mono_mb_emit_byte (mb, CEE_RET);
9338 #endif /* DISABLE_JIT */
9339 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9340 info->d.virtual_stelemref.kind = kind;
9341 res = mono_mb_create (mb, signature, 4, info);
9342 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9344 mono_marshal_lock ();
9345 if (!cached_methods [kind]) {
9346 cached_methods [kind] = res;
9347 mono_marshal_unlock ();
9349 mono_marshal_unlock ();
9350 mono_free_method (res);
9354 return cached_methods [kind];
9358 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9362 g_assert (array_class->rank == 1);
9363 kind = get_virtual_stelemref_kind (array_class->element_class);
9365 return get_virtual_stelemref_wrapper (kind);
9369 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9374 *nwrappers = STELEMREF_KIND_COUNT;
9375 res = g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9376 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9377 res [i] = get_virtual_stelemref_wrapper (i);
9382 * The wrapper info for the wrapper is a WrapperInfo structure.
9385 mono_marshal_get_stelemref (void)
9387 static MonoMethod* ret = NULL;
9388 MonoMethodSignature *sig;
9389 MonoMethodBuilder *mb;
9392 guint32 b1, b2, b3, b4;
9395 int array_slot_addr;
9400 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9403 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9405 /* void stelemref (void* array, int idx, void* value) */
9406 sig->ret = &mono_defaults.void_class->byval_arg;
9407 sig->params [0] = &mono_defaults.object_class->byval_arg;
9408 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9409 sig->params [2] = &mono_defaults.object_class->byval_arg;
9412 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9413 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9414 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9418 <ldelema (bound check)>
9422 aklass = array->vtable->klass->element_class;
9423 vklass = value->vtable->klass;
9425 if (vklass->idepth < aklass->idepth)
9428 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9432 *array_slot_addr = value;
9436 if (mono_object_isinst (value, aklass))
9439 throw new ArrayTypeMismatchException ();
9442 /* ldelema (implicit bound check) */
9443 mono_mb_emit_ldarg (mb, 0);
9444 mono_mb_emit_ldarg (mb, 1);
9445 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9446 mono_mb_emit_stloc (mb, array_slot_addr);
9448 /* if (!value) goto do_store */
9449 mono_mb_emit_ldarg (mb, 2);
9450 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9452 /* aklass = array->vtable->klass->element_class */
9453 mono_mb_emit_ldarg (mb, 0);
9454 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9455 mono_mb_emit_byte (mb, CEE_LDIND_I);
9456 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9457 mono_mb_emit_byte (mb, CEE_LDIND_I);
9458 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9459 mono_mb_emit_byte (mb, CEE_LDIND_I);
9460 mono_mb_emit_stloc (mb, aklass);
9462 /* vklass = value->vtable->klass */
9463 mono_mb_emit_ldarg (mb, 2);
9464 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9465 mono_mb_emit_byte (mb, CEE_LDIND_I);
9466 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9467 mono_mb_emit_byte (mb, CEE_LDIND_I);
9468 mono_mb_emit_stloc (mb, vklass);
9470 /* if (vklass->idepth < aklass->idepth) goto failue */
9471 mono_mb_emit_ldloc (mb, vklass);
9472 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9473 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9475 mono_mb_emit_ldloc (mb, aklass);
9476 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9477 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9479 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9481 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9482 mono_mb_emit_ldloc (mb, vklass);
9483 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9484 mono_mb_emit_byte (mb, CEE_LDIND_I);
9486 mono_mb_emit_ldloc (mb, aklass);
9487 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9488 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9489 mono_mb_emit_icon (mb, 1);
9490 mono_mb_emit_byte (mb, CEE_SUB);
9491 mono_mb_emit_icon (mb, sizeof (void*));
9492 mono_mb_emit_byte (mb, CEE_MUL);
9493 mono_mb_emit_byte (mb, CEE_ADD);
9494 mono_mb_emit_byte (mb, CEE_LDIND_I);
9496 mono_mb_emit_ldloc (mb, aklass);
9498 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9500 copy_pos = mono_mb_get_label (mb);
9502 mono_mb_patch_branch (mb, b1);
9503 mono_mb_emit_ldloc (mb, array_slot_addr);
9504 mono_mb_emit_ldarg (mb, 2);
9505 mono_mb_emit_byte (mb, CEE_STIND_REF);
9507 mono_mb_emit_byte (mb, CEE_RET);
9510 mono_mb_patch_branch (mb, b2);
9511 mono_mb_patch_branch (mb, b3);
9513 mono_mb_emit_ldarg (mb, 2);
9514 mono_mb_emit_ldloc (mb, aklass);
9515 mono_mb_emit_icall (mb, mono_object_isinst);
9517 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9518 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9519 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9521 mono_mb_emit_byte (mb, CEE_RET);
9523 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9524 ret = mono_mb_create (mb, sig, 4, info);
9531 * mono_marshal_get_gsharedvt_in_wrapper:
9533 * This wrapper handles calls from normal code to gsharedvt code.
9535 * The wrapper info for the wrapper is a WrapperInfo structure.
9538 mono_marshal_get_gsharedvt_in_wrapper (void)
9540 static MonoMethod* ret = NULL;
9541 MonoMethodSignature *sig;
9542 MonoMethodBuilder *mb;
9548 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9550 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9551 sig->ret = &mono_defaults.void_class->byval_arg;
9555 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9557 mono_mb_emit_byte (mb, CEE_RET);
9559 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9560 ret = mono_mb_create (mb, sig, 4, info);
9567 * mono_marshal_get_gsharedvt_out_wrapper:
9569 * This wrapper handles calls from gsharedvt code to normal code.
9571 * The wrapper info for the wrapper is a WrapperInfo structure.
9574 mono_marshal_get_gsharedvt_out_wrapper (void)
9576 static MonoMethod* ret = NULL;
9577 MonoMethodSignature *sig;
9578 MonoMethodBuilder *mb;
9584 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9586 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9587 sig->ret = &mono_defaults.void_class->byval_arg;
9591 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9593 mono_mb_emit_byte (mb, CEE_RET);
9595 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9596 ret = mono_mb_create (mb, sig, 4, info);
9608 /* LOCKING: vars accessed under the marshal lock */
9609 static ArrayElemAddr *elem_addr_cache = NULL;
9610 static int elem_addr_cache_size = 0;
9611 static int elem_addr_cache_next = 0;
9614 * mono_marshal_get_array_address:
9615 * @rank: rank of the array type
9616 * @elem_size: size in bytes of an element of an array.
9618 * Returns a MonoMethod that implements the code to get the address
9619 * of an element in a multi-dimenasional array of @rank dimensions.
9620 * The returned method takes an array as the first argument and then
9621 * @rank indexes for the @rank dimensions.
9622 * If ELEM_SIZE is 0, read the array size from the array object.
9625 mono_marshal_get_array_address (int rank, int elem_size)
9628 MonoMethodBuilder *mb;
9629 MonoMethodSignature *sig;
9632 int i, bounds, ind, realidx;
9633 int branch_pos, *branch_positions;
9637 mono_marshal_lock ();
9638 for (i = 0; i < elem_addr_cache_next; ++i) {
9639 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9640 ret = elem_addr_cache [i].method;
9644 mono_marshal_unlock ();
9648 branch_positions = g_new0 (int, rank);
9650 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9652 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9653 sig->ret = &mono_defaults.int_class->byval_arg;
9654 sig->params [0] = &mono_defaults.object_class->byval_arg;
9655 for (i = 0; i < rank; ++i) {
9656 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9659 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9660 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9664 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9665 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9666 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9668 /* bounds = array->bounds; */
9669 mono_mb_emit_ldarg (mb, 0);
9670 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9671 mono_mb_emit_byte (mb, CEE_LDIND_I);
9672 mono_mb_emit_stloc (mb, bounds);
9674 /* ind is the overall element index, realidx is the partial index in a single dimension */
9675 /* ind = idx0 - bounds [0].lower_bound */
9676 mono_mb_emit_ldarg (mb, 1);
9677 mono_mb_emit_ldloc (mb, bounds);
9678 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9679 mono_mb_emit_byte (mb, CEE_ADD);
9680 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9681 mono_mb_emit_byte (mb, CEE_SUB);
9682 mono_mb_emit_stloc (mb, ind);
9683 /* if (ind >= bounds [0].length) goto exeception; */
9684 mono_mb_emit_ldloc (mb, ind);
9685 mono_mb_emit_ldloc (mb, bounds);
9686 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9687 mono_mb_emit_byte (mb, CEE_ADD);
9688 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9689 /* note that we use unsigned comparison */
9690 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9692 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9693 * We could also decide to ignore the passed elem_size and get it
9694 * from the array object, to reduce the number of methods we generate:
9695 * the additional cost is 3 memory loads and a non-immediate mul.
9697 for (i = 1; i < rank; ++i) {
9698 /* realidx = idxi - bounds [i].lower_bound */
9699 mono_mb_emit_ldarg (mb, 1 + i);
9700 mono_mb_emit_ldloc (mb, bounds);
9701 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9702 mono_mb_emit_byte (mb, CEE_ADD);
9703 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9704 mono_mb_emit_byte (mb, CEE_SUB);
9705 mono_mb_emit_stloc (mb, realidx);
9706 /* if (realidx >= bounds [i].length) goto exeception; */
9707 mono_mb_emit_ldloc (mb, realidx);
9708 mono_mb_emit_ldloc (mb, bounds);
9709 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9710 mono_mb_emit_byte (mb, CEE_ADD);
9711 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9712 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9713 /* ind = ind * bounds [i].length + realidx */
9714 mono_mb_emit_ldloc (mb, ind);
9715 mono_mb_emit_ldloc (mb, bounds);
9716 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9717 mono_mb_emit_byte (mb, CEE_ADD);
9718 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9719 mono_mb_emit_byte (mb, CEE_MUL);
9720 mono_mb_emit_ldloc (mb, realidx);
9721 mono_mb_emit_byte (mb, CEE_ADD);
9722 mono_mb_emit_stloc (mb, ind);
9725 /* return array->vector + ind * element_size */
9726 mono_mb_emit_ldarg (mb, 0);
9727 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9728 mono_mb_emit_ldloc (mb, ind);
9730 mono_mb_emit_icon (mb, elem_size);
9732 /* Load arr->vtable->klass->sizes.element_class */
9733 mono_mb_emit_ldarg (mb, 0);
9734 mono_mb_emit_byte (mb, CEE_CONV_I);
9735 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9736 mono_mb_emit_byte (mb, CEE_ADD);
9737 mono_mb_emit_byte (mb, CEE_LDIND_I);
9738 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9739 mono_mb_emit_byte (mb, CEE_ADD);
9740 mono_mb_emit_byte (mb, CEE_LDIND_I);
9741 /* sizes is an union, so this reads sizes.element_size */
9742 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9743 mono_mb_emit_byte (mb, CEE_ADD);
9744 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9746 mono_mb_emit_byte (mb, CEE_MUL);
9747 mono_mb_emit_byte (mb, CEE_ADD);
9748 mono_mb_emit_byte (mb, CEE_RET);
9750 /* patch the branches to get here and throw */
9751 for (i = 1; i < rank; ++i) {
9752 mono_mb_patch_branch (mb, branch_positions [i]);
9754 mono_mb_patch_branch (mb, branch_pos);
9755 /* throw exception */
9756 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9758 g_free (branch_positions);
9759 #endif /* DISABLE_JIT */
9761 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9762 info->d.element_addr.rank = rank;
9763 info->d.element_addr.elem_size = elem_size;
9764 ret = mono_mb_create (mb, sig, 4, info);
9767 /* cache the result */
9769 mono_marshal_lock ();
9770 for (i = 0; i < elem_addr_cache_next; ++i) {
9771 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9772 /* FIXME: free ret */
9773 ret = elem_addr_cache [i].method;
9779 if (elem_addr_cache_next >= elem_addr_cache_size) {
9780 int new_size = elem_addr_cache_size + 4;
9781 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9782 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9783 g_free (elem_addr_cache);
9784 elem_addr_cache = new_array;
9785 elem_addr_cache_size = new_size;
9787 elem_addr_cache [elem_addr_cache_next].rank = rank;
9788 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9789 elem_addr_cache [elem_addr_cache_next].method = ret;
9790 elem_addr_cache_next ++;
9792 mono_marshal_unlock ();
9797 * mono_marshal_get_array_accessor_wrapper:
9799 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
9802 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
9804 MonoMethodSignature *sig;
9805 MonoMethodBuilder *mb;
9809 MonoGenericContext *ctx = NULL;
9810 MonoMethod *orig_method = NULL;
9811 MonoGenericContainer *container = NULL;
9815 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
9816 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
9817 * FIXME: Use generic methods.
9824 g_assert_not_reached ();
9826 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
9827 if ((res = mono_marshal_find_in_cache (cache, method)))
9831 sig = signature_dup (method->klass->image, mono_method_signature (method));
9834 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9837 /* Call the method */
9839 mono_mb_emit_ldarg (mb, 0);
9840 for (i = 0; i < sig->param_count; i++)
9841 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9845 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9846 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9848 mono_mb_emit_managed_call (mb, method, NULL);
9850 mono_mb_emit_byte (mb, CEE_RET);
9855 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
9856 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9858 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
9859 info->d.array_accessor.method = method;
9861 res = mono_mb_create_and_cache_full (cache, method,
9862 mb, sig, sig->param_count + 16,
9871 mono_marshal_alloc (gulong size)
9876 res = CoTaskMemAlloc (size);
9878 res = g_try_malloc ((gulong)size);
9880 mono_gc_out_of_memory ((gulong)size);
9886 mono_marshal_free (gpointer ptr)
9889 CoTaskMemFree (ptr);
9896 mono_marshal_free_array (gpointer *ptr, int size)
9903 for (i = 0; i < size; i++)
9909 mono_marshal_string_to_utf16 (MonoString *s)
9911 return s ? mono_string_chars (s) : NULL;
9915 mono_marshal_string_to_utf16_copy (MonoString *s)
9920 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9921 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9922 res [mono_string_length (s)] = 0;
9928 * mono_marshal_set_last_error:
9930 * This function is invoked to set the last error value from a P/Invoke call
9931 * which has SetLastError set.
9934 mono_marshal_set_last_error (void)
9937 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9939 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
9944 mono_marshal_set_last_error_windows (int error)
9947 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
9952 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9953 gpointer dest, gint32 length)
9958 MONO_CHECK_ARG_NULL (src,);
9959 MONO_CHECK_ARG_NULL (dest,);
9961 if (src->obj.vtable->klass->rank != 1) {
9962 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9965 if (start_index < 0) {
9966 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9970 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9973 if (start_index + length > mono_array_length (src)) {
9974 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9978 element_size = mono_array_element_size (src->obj.vtable->klass);
9980 /* no references should be involved */
9981 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
9983 memcpy (dest, source_addr, length * element_size);
9987 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9988 MonoArray *dest, gint32 length)
9993 MONO_CHECK_ARG_NULL (src,);
9994 MONO_CHECK_ARG_NULL (dest,);
9996 if (dest->obj.vtable->klass->rank != 1) {
9997 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10000 if (start_index < 0) {
10001 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10005 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10008 if (start_index + length > mono_array_length (dest)) {
10009 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10012 element_size = mono_array_element_size (dest->obj.vtable->klass);
10014 /* no references should be involved */
10015 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10017 memcpy (dest_addr, src, length * element_size);
10021 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10026 return mono_string_new (mono_domain_get (), ptr);
10030 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10033 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10036 return mono_string_new_len (mono_domain_get (), ptr, len);
10041 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10043 MonoDomain *domain = mono_domain_get ();
10053 return mono_string_new_utf16 (domain, ptr, len);
10057 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10059 MonoDomain *domain = mono_domain_get ();
10062 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10065 return mono_string_new_utf16 (domain, ptr, len);
10070 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10072 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10076 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10082 MONO_CHECK_ARG_NULL (rtype, 0);
10084 type = rtype->type;
10085 klass = mono_class_from_mono_type (type);
10086 if (!mono_class_init (klass)) {
10087 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10091 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10093 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10094 return sizeof (gpointer);
10095 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10097 MonoException *exc;
10099 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10100 exc = mono_get_exception_argument ("t", msg);
10102 mono_set_pending_exception (exc);
10106 return mono_class_native_size (klass, NULL);
10110 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10112 MonoMethod *method;
10115 MONO_CHECK_ARG_NULL (obj,);
10116 MONO_CHECK_ARG_NULL (dst,);
10118 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10122 pa [2] = &delete_old;
10124 mono_runtime_invoke (method, NULL, pa, NULL);
10128 ptr_to_structure (gpointer src, MonoObject *dst)
10130 MonoMethod *method;
10133 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10138 mono_runtime_invoke (method, NULL, pa, NULL);
10142 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10146 MONO_CHECK_ARG_NULL (src,);
10147 MONO_CHECK_ARG_NULL (dst,);
10149 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10151 if (t->type == MONO_TYPE_VALUETYPE) {
10152 MonoException *exc;
10155 tmp = g_strdup_printf ("Destination is a boxed value type.");
10156 exc = mono_get_exception_argument ("dst", tmp);
10159 mono_set_pending_exception (exc);
10163 ptr_to_structure (src, dst);
10167 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10170 MonoDomain *domain = mono_domain_get ();
10175 MONO_CHECK_ARG_NULL (type, NULL);
10177 klass = mono_class_from_mono_type (type->type);
10178 if (!mono_class_init (klass)) {
10179 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10183 res = mono_object_new (domain, klass);
10185 ptr_to_structure (src, res);
10191 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10193 MonoMarshalType *info;
10196 int match_index = -1;
10198 MONO_CHECK_ARG_NULL (type, 0);
10199 MONO_CHECK_ARG_NULL (field_name, 0);
10201 fname = mono_string_to_utf8 (field_name);
10202 klass = mono_class_from_mono_type (type->type);
10203 if (!mono_class_init (klass)) {
10204 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10208 while (klass && match_index == -1) {
10209 MonoClassField* field;
10211 gpointer iter = NULL;
10212 while ((field = mono_class_get_fields (klass, &iter))) {
10213 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10215 if (!strcmp (fname, mono_field_get_name (field))) {
10222 if (match_index == -1)
10223 klass = klass->parent;
10228 if(match_index == -1) {
10229 MonoException* exc;
10232 /* Get back original class instance */
10233 klass = mono_class_from_mono_type (type->type);
10235 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10236 exc = mono_get_exception_argument ("fieldName", tmp);
10239 mono_set_pending_exception ((MonoException*)exc);
10243 info = mono_marshal_load_type_info (klass);
10244 return info->fields [match_index].offset;
10248 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10253 tres = mono_string_to_utf8 (string);
10257 len = strlen (tres) + 1;
10258 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10259 memcpy (ret, tres, len);
10264 return mono_string_to_utf8 (string);
10269 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10271 if (string == NULL)
10274 #ifdef TARGET_WIN32
10275 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10276 ((mono_string_length (string) + 1) * 2);
10278 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10280 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10281 res [mono_string_length (string)] = 0;
10287 mono_struct_delete_old (MonoClass *klass, char *ptr)
10289 MonoMarshalType *info;
10292 info = mono_marshal_load_type_info (klass);
10294 for (i = 0; i < info->num_fields; i++) {
10295 MonoMarshalConv conv;
10296 MonoType *ftype = info->fields [i].field->type;
10299 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10302 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10303 klass->unicode, &conv);
10305 cpos = ptr + info->fields [i].offset;
10308 case MONO_MARSHAL_CONV_NONE:
10309 if (MONO_TYPE_ISSTRUCT (ftype)) {
10310 mono_struct_delete_old (ftype->data.klass, cpos);
10314 case MONO_MARSHAL_CONV_STR_LPWSTR:
10315 /* We assume this field points inside a MonoString */
10317 case MONO_MARSHAL_CONV_STR_LPTSTR:
10318 #ifdef TARGET_WIN32
10319 /* We assume this field points inside a MonoString
10323 case MONO_MARSHAL_CONV_STR_LPSTR:
10324 case MONO_MARSHAL_CONV_STR_BSTR:
10325 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10326 case MONO_MARSHAL_CONV_STR_TBSTR:
10327 mono_marshal_free (*(gpointer *)cpos);
10337 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10341 MONO_CHECK_ARG_NULL (src,);
10342 MONO_CHECK_ARG_NULL (type,);
10344 klass = mono_class_from_mono_type (type->type);
10345 if (!mono_class_init (klass)) {
10346 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10350 mono_struct_delete_old (klass, (char *)src);
10354 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10358 if ((gulong)size == 0)
10359 /* This returns a valid pointer for size 0 on MS.NET */
10363 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10365 res = g_try_malloc ((gulong)size);
10368 mono_gc_out_of_memory ((gulong)size);
10374 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10379 mono_gc_out_of_memory ((gulong)size);
10384 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10386 res = g_try_realloc (ptr, (gulong)size);
10389 mono_gc_out_of_memory ((gulong)size);
10395 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10405 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10410 res = CoTaskMemAlloc (size);
10412 if ((gulong)size == 0)
10413 /* This returns a valid pointer for size 0 on MS.NET */
10416 res = g_try_malloc ((gulong)size);
10419 mono_gc_out_of_memory ((gulong)size);
10424 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10427 CoTaskMemFree (ptr);
10434 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10439 res = CoTaskMemRealloc (ptr, size);
10441 res = g_try_realloc (ptr, (gulong)size);
10444 mono_gc_out_of_memory ((gulong)size);
10449 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10451 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10455 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10457 MonoClass *klass = mono_type_get_class (type->type);
10458 if (!mono_class_init (klass)) {
10459 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10463 return mono_ftnptr_to_delegate (klass, ftn);
10467 * mono_marshal_is_loading_type_info:
10469 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10473 mono_marshal_is_loading_type_info (MonoClass *klass)
10475 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10477 return g_slist_find (loads_list, klass) != NULL;
10481 * mono_marshal_load_type_info:
10483 * Initialize klass->marshal_info using information from metadata. This function can
10484 * recursively call itself, and the caller is responsible to avoid that by calling
10485 * mono_marshal_is_loading_type_info () beforehand.
10487 * LOCKING: Acquires the loader lock.
10490 mono_marshal_load_type_info (MonoClass* klass)
10493 guint32 native_size = 0, min_align = 1, packing;
10494 MonoMarshalType *info;
10495 MonoClassField* field;
10498 GSList *loads_list;
10500 g_assert (klass != NULL);
10502 if (klass->marshal_info)
10503 return klass->marshal_info;
10505 if (!klass->inited)
10506 mono_class_init (klass);
10508 if (klass->marshal_info)
10509 return klass->marshal_info;
10512 * This function can recursively call itself, so we keep the list of classes which are
10513 * under initialization in a TLS list.
10515 g_assert (!mono_marshal_is_loading_type_info (klass));
10516 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10517 loads_list = g_slist_prepend (loads_list, klass);
10518 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10521 while ((field = mono_class_get_fields (klass, &iter))) {
10522 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10524 if (mono_field_is_deleted (field))
10529 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10531 /* The mempool is protected by the loader lock */
10532 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10533 info->num_fields = count;
10535 /* Try to find a size for this type in metadata */
10536 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10538 if (klass->parent) {
10539 int parent_size = mono_class_native_size (klass->parent, NULL);
10541 /* Add parent size to real size */
10542 native_size += parent_size;
10543 info->native_size = parent_size;
10546 packing = klass->packing_size ? klass->packing_size : 8;
10549 while ((field = mono_class_get_fields (klass, &iter))) {
10553 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10556 if (mono_field_is_deleted (field))
10558 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10559 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10560 NULL, NULL, &info->fields [j].mspec);
10562 info->fields [j].field = field;
10564 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10565 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10566 /* This field is a hack inserted by MCS to empty structures */
10571 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10572 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10573 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10574 &align, TRUE, klass->unicode);
10575 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10576 min_align = MAX (align, min_align);
10577 info->fields [j].offset = info->native_size;
10578 info->fields [j].offset += align - 1;
10579 info->fields [j].offset &= ~(align - 1);
10580 info->native_size = info->fields [j].offset + size;
10582 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10583 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10584 &align, TRUE, klass->unicode);
10585 min_align = MAX (align, min_align);
10586 info->fields [j].offset = field->offset - sizeof (MonoObject);
10587 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10593 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10594 info->native_size = MAX (native_size, info->native_size);
10596 * If the provided Size is equal or larger than the calculated size, and there
10597 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10599 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10600 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10603 min_align = MIN (min_align, packing);
10607 if (info->native_size & (min_align - 1)) {
10608 info->native_size += min_align - 1;
10609 info->native_size &= ~(min_align - 1);
10612 info->min_align = min_align;
10614 /* Update the class's blittable info, if the layouts don't match */
10615 if (info->native_size != mono_class_value_size (klass, NULL))
10616 klass->blittable = FALSE;
10618 /* If this is an array type, ensure that we have element info */
10619 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10620 mono_marshal_load_type_info (klass->element_class);
10623 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10624 loads_list = g_slist_remove (loads_list, klass);
10625 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10627 mono_marshal_lock ();
10628 if (!klass->marshal_info) {
10629 /*We do double-checking locking on marshal_info */
10630 mono_memory_barrier ();
10631 klass->marshal_info = info;
10633 mono_marshal_unlock ();
10635 return klass->marshal_info;
10639 * mono_class_native_size:
10642 * Returns: the native size of an object instance (when marshaled
10643 * to unmanaged code)
10646 mono_class_native_size (MonoClass *klass, guint32 *align)
10648 if (!klass->marshal_info) {
10649 if (mono_marshal_is_loading_type_info (klass)) {
10654 mono_marshal_load_type_info (klass);
10659 *align = klass->marshal_info->min_align;
10661 return klass->marshal_info->native_size;
10665 * mono_type_native_stack_size:
10666 * @t: the type to return the size it uses on the stack
10668 * Returns: the number of bytes required to hold an instance of this
10669 * type on the native stack
10672 mono_type_native_stack_size (MonoType *t, guint32 *align)
10676 g_assert (t != NULL);
10682 *align = sizeof (gpointer);
10683 return sizeof (gpointer);
10687 case MONO_TYPE_BOOLEAN:
10688 case MONO_TYPE_CHAR:
10699 case MONO_TYPE_STRING:
10700 case MONO_TYPE_OBJECT:
10701 case MONO_TYPE_CLASS:
10702 case MONO_TYPE_SZARRAY:
10703 case MONO_TYPE_PTR:
10704 case MONO_TYPE_FNPTR:
10705 case MONO_TYPE_ARRAY:
10706 *align = sizeof (gpointer);
10707 return sizeof (gpointer);
10712 *align = MONO_ABI_ALIGNOF (double);
10716 *align = MONO_ABI_ALIGNOF (gint64);
10718 case MONO_TYPE_GENERICINST:
10719 if (!mono_type_generic_inst_is_valuetype (t)) {
10720 *align = sizeof (gpointer);
10721 return sizeof (gpointer);
10724 case MONO_TYPE_TYPEDBYREF:
10725 case MONO_TYPE_VALUETYPE: {
10727 MonoClass *klass = mono_class_from_mono_type (t);
10729 if (klass->enumtype)
10730 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10732 size = mono_class_native_size (klass, align);
10733 *align = *align + 3;
10743 g_error ("type 0x%02x unknown", t->type);
10749 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10750 gboolean as_field, gboolean unicode)
10752 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10755 switch (native_type) {
10756 case MONO_NATIVE_BOOLEAN:
10759 case MONO_NATIVE_I1:
10760 case MONO_NATIVE_U1:
10763 case MONO_NATIVE_I2:
10764 case MONO_NATIVE_U2:
10765 case MONO_NATIVE_VARIANTBOOL:
10768 case MONO_NATIVE_I4:
10769 case MONO_NATIVE_U4:
10770 case MONO_NATIVE_ERROR:
10773 case MONO_NATIVE_I8:
10774 case MONO_NATIVE_U8:
10775 *align = MONO_ABI_ALIGNOF (gint64);
10777 case MONO_NATIVE_R4:
10780 case MONO_NATIVE_R8:
10781 *align = MONO_ABI_ALIGNOF (double);
10783 case MONO_NATIVE_INT:
10784 case MONO_NATIVE_UINT:
10785 case MONO_NATIVE_LPSTR:
10786 case MONO_NATIVE_LPWSTR:
10787 case MONO_NATIVE_LPTSTR:
10788 case MONO_NATIVE_BSTR:
10789 case MONO_NATIVE_ANSIBSTR:
10790 case MONO_NATIVE_TBSTR:
10791 case MONO_NATIVE_LPARRAY:
10792 case MONO_NATIVE_SAFEARRAY:
10793 case MONO_NATIVE_IUNKNOWN:
10794 case MONO_NATIVE_IDISPATCH:
10795 case MONO_NATIVE_INTERFACE:
10796 case MONO_NATIVE_ASANY:
10797 case MONO_NATIVE_FUNC:
10798 case MONO_NATIVE_LPSTRUCT:
10799 *align = MONO_ABI_ALIGNOF (gpointer);
10800 return sizeof (gpointer);
10801 case MONO_NATIVE_STRUCT:
10802 klass = mono_class_from_mono_type (type);
10803 if (klass == mono_defaults.object_class &&
10804 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10808 return mono_class_native_size (klass, align);
10809 case MONO_NATIVE_BYVALTSTR: {
10810 int esize = unicode ? 2: 1;
10813 return mspec->data.array_data.num_elem * esize;
10815 case MONO_NATIVE_BYVALARRAY: {
10816 // FIXME: Have to consider ArraySubType
10818 klass = mono_class_from_mono_type (type);
10819 if (klass->element_class == mono_defaults.char_class) {
10820 esize = unicode ? 2 : 1;
10823 esize = mono_class_native_size (klass->element_class, align);
10826 return mspec->data.array_data.num_elem * esize;
10828 case MONO_NATIVE_CUSTOM:
10829 *align = sizeof (gpointer);
10830 return sizeof (gpointer);
10832 case MONO_NATIVE_CURRENCY:
10833 case MONO_NATIVE_VBBYREFSTR:
10835 g_error ("native type %02x not implemented", native_type);
10838 g_assert_not_reached ();
10843 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10851 t = &o->vtable->klass->byval_arg;
10855 case MONO_TYPE_PTR:
10858 case MONO_TYPE_BOOLEAN:
10861 case MONO_TYPE_CHAR:
10866 return mono_object_unbox (o);
10868 case MONO_TYPE_STRING:
10869 switch (string_encoding) {
10870 case MONO_NATIVE_LPWSTR:
10871 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
10873 case MONO_NATIVE_LPSTR:
10874 return mono_string_to_lpstr ((MonoString*)o);
10877 g_warning ("marshaling conversion %d not implemented", string_encoding);
10878 g_assert_not_reached ();
10881 case MONO_TYPE_CLASS:
10882 case MONO_TYPE_VALUETYPE: {
10883 MonoMethod *method;
10886 MonoBoolean delete_old = FALSE;
10888 klass = t->data.klass;
10890 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10893 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10894 klass->blittable || klass->enumtype))
10895 return mono_object_unbox (o);
10897 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10899 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10900 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10904 pa [2] = &delete_old;
10906 mono_runtime_invoke (method, NULL, pa, NULL);
10914 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10919 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10927 t = &o->vtable->klass->byval_arg;
10929 case MONO_TYPE_STRING:
10930 switch (string_encoding) {
10931 case MONO_NATIVE_LPWSTR:
10932 case MONO_NATIVE_LPSTR:
10933 mono_marshal_free (ptr);
10936 g_warning ("marshaling conversion %d not implemented", string_encoding);
10937 g_assert_not_reached ();
10940 case MONO_TYPE_CLASS:
10941 case MONO_TYPE_VALUETYPE: {
10942 klass = t->data.klass;
10944 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10945 klass->blittable || klass->enumtype))
10948 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10949 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10955 mono_runtime_invoke (method, NULL, pa, NULL);
10958 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10959 mono_struct_delete_old (klass, ptr);
10962 mono_marshal_free (ptr);
10971 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10973 MonoMethodSignature *sig, *csig;
10974 MonoMethodBuilder *mb;
10979 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10980 mb->method->slot = -1;
10982 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10983 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10985 sig = mono_method_signature (method);
10986 csig = signature_dup (method->klass->image, sig);
10987 csig->generic_param_count = 0;
10989 #ifndef DISABLE_JIT
10990 mono_mb_emit_ldarg (mb, 0);
10991 for (i = 0; i < csig->param_count; i++)
10992 mono_mb_emit_ldarg (mb, i + 1);
10993 mono_mb_emit_managed_call (mb, method, NULL);
10994 mono_mb_emit_byte (mb, CEE_RET);
10996 /* We can corlib internal methods */
10997 mb->skip_visibility = TRUE;
10999 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11000 info->d.generic_array_helper.method = method;
11001 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11009 * The mono_win32_compat_* functions are implementations of inline
11010 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11011 * although not exported by kernel32.
11013 * We map the appropiate kernel32 entries to these functions using
11014 * dllmaps declared in the global etc/mono/config.
11018 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11020 if (!dest || !source)
11023 memcpy (dest, source, length);
11027 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11029 memset (dest, fill, length);
11033 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11035 if (!dest || !source)
11038 memmove (dest, source, length);
11042 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11044 memset (dest, 0, length);
11048 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11053 for (i = 0; i < len; ++i)
11057 g_assert (i < len);
11060 while (byte && !(byte & 1))
11062 g_assert (byte == 1);
11065 *bitmask = buf [i];
11069 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11071 MonoMethodBuilder *mb;
11072 MonoMethodSignature *sig, *csig;
11073 MonoExceptionClause *clause;
11078 int i, param_count, sig_size, pos_leave;
11082 klass = method->klass;
11083 image = method->klass->image;
11084 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11086 if ((res = mono_marshal_find_in_cache (cache, method)))
11089 sig = mono_method_signature (method);
11090 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11092 /* add "this" and exception param */
11093 param_count = sig->param_count + sig->hasthis + 1;
11095 /* dup & extend signature */
11096 csig = mono_metadata_signature_alloc (image, param_count);
11097 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11098 memcpy (csig, sig, sig_size);
11099 csig->param_count = param_count;
11102 csig->call_convention = MONO_CALL_DEFAULT;
11104 if (sig->hasthis) {
11106 csig->params [0] = &klass->byval_arg;
11107 /* move params up by one */
11108 for (i = 0; i < sig->param_count; i++)
11109 csig->params [i + 1] = sig->params [i];
11112 /* setup exception param as byref+[out] */
11113 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11114 &mono_defaults.exception_class->byval_arg);
11115 csig->params [param_count - 1]->byref = 1;
11116 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11118 /* convert struct return to object */
11119 if (MONO_TYPE_ISSTRUCT (sig->ret))
11120 csig->ret = &mono_defaults.object_class->byval_arg;
11122 #ifndef DISABLE_JIT
11123 /* local 0 (temp for exception object) */
11124 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11126 /* local 1 (temp for result) */
11127 if (!MONO_TYPE_IS_VOID (sig->ret))
11128 mono_mb_add_local (mb, sig->ret);
11130 /* clear exception arg */
11131 mono_mb_emit_ldarg (mb, param_count - 1);
11132 mono_mb_emit_byte (mb, CEE_LDNULL);
11133 mono_mb_emit_byte (mb, CEE_STIND_REF);
11136 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11137 clause->try_offset = mono_mb_get_label (mb);
11139 /* push method's args */
11140 for (i = 0; i < param_count - 1; i++) {
11144 mono_mb_emit_ldarg (mb, i);
11146 /* get the byval type of the param */
11147 klass = mono_class_from_mono_type (csig->params [i]);
11148 type = &klass->byval_arg;
11150 /* unbox struct args */
11151 if (MONO_TYPE_ISSTRUCT (type)) {
11152 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11154 /* byref args & and the "this" arg must remain a ptr.
11155 Otherwise make a copy of the value type */
11156 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11157 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11159 csig->params [i] = &mono_defaults.object_class->byval_arg;
11164 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11165 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11167 mono_mb_emit_op (mb, CEE_CALL, method);
11169 /* save result at local 1 */
11170 if (!MONO_TYPE_IS_VOID (sig->ret))
11171 mono_mb_emit_stloc (mb, 1);
11173 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11176 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11177 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11178 clause->data.catch_class = mono_defaults.object_class;
11180 clause->handler_offset = mono_mb_get_label (mb);
11182 /* store exception at local 0 */
11183 mono_mb_emit_stloc (mb, 0);
11184 mono_mb_emit_ldarg (mb, param_count - 1);
11185 mono_mb_emit_ldloc (mb, 0);
11186 mono_mb_emit_byte (mb, CEE_STIND_REF);
11187 mono_mb_emit_branch (mb, CEE_LEAVE);
11189 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11191 mono_mb_set_clauses (mb, 1, clause);
11193 mono_mb_patch_branch (mb, pos_leave);
11196 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11197 mono_mb_emit_ldloc (mb, 1);
11199 /* box the return value */
11200 if (MONO_TYPE_ISSTRUCT (sig->ret))
11201 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11204 mono_mb_emit_byte (mb, CEE_RET);
11207 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11214 * mono_marshal_free_dynamic_wrappers:
11216 * Free wrappers of the dynamic method METHOD.
11219 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11221 MonoImage *image = method->klass->image;
11223 g_assert (method_is_dynamic (method));
11225 /* This could be called during shutdown */
11226 if (marshal_mutex_initialized)
11227 mono_marshal_lock ();
11229 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11230 * they could be shared with other methods ?
11232 if (image->runtime_invoke_direct_cache)
11233 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
11234 if (image->delegate_abstract_invoke_cache)
11235 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11236 // FIXME: Need to clear the caches in other images as well
11237 if (image->delegate_bound_static_invoke_cache)
11238 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11240 if (marshal_mutex_initialized)
11241 mono_marshal_unlock ();
11245 signature_pointer_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11247 SignaturePointerPair *pair = (SignaturePointerPair*)key;
11248 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11250 return mono_metadata_signature_equal (pair->sig, sig);
11254 * mono_marshal_free_inflated_wrappers:
11256 * Free wrappers of the inflated method METHOD.
11259 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11261 MonoMethodSignature *sig = method->signature;
11263 g_assert (method->is_inflated);
11265 /* Ignore calls occuring late during cleanup. */
11266 if (!marshal_mutex_initialized)
11269 mono_marshal_lock ();
11271 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11272 * they could be shared with other methods ?
11276 * indexed by MonoMethodSignature
11278 /* FIXME: This could remove unrelated wrappers as well */
11279 if (sig && method->klass->image->delegate_begin_invoke_cache)
11280 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11281 if (sig && method->klass->image->delegate_end_invoke_cache)
11282 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11283 if (sig && method->klass->image->delegate_invoke_cache)
11284 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11285 if (sig && method->klass->image->runtime_invoke_cache)
11286 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11287 if (sig && method->klass->image->runtime_invoke_vtype_cache)
11288 g_hash_table_remove (method->klass->image->runtime_invoke_vtype_cache, sig);
11291 * indexed by SignaturePointerPair
11293 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11294 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11295 signature_pointer_pair_matches_signature, (gpointer)sig);
11298 * indexed by MonoMethod pointers
11300 if (method->klass->image->runtime_invoke_direct_cache)
11301 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11302 if (method->klass->image->managed_wrapper_cache)
11303 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11304 if (method->klass->image->native_wrapper_cache)
11305 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11306 if (method->klass->image->remoting_invoke_cache)
11307 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11308 if (method->klass->image->synchronized_cache)
11309 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11310 if (method->klass->image->unbox_wrapper_cache)
11311 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11312 if (method->klass->image->cominterop_invoke_cache)
11313 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11314 if (method->klass->image->cominterop_wrapper_cache)
11315 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11316 if (method->klass->image->thunk_invoke_cache)
11317 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11318 if (method->klass->image->native_func_wrapper_aot_cache)
11319 g_hash_table_remove (method->klass->image->native_func_wrapper_aot_cache, method);
11321 mono_marshal_unlock ();