2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
21 #include "metadata/marshal.h"
22 #include "metadata/method-builder.h"
23 #include "metadata/tabledefs.h"
24 #include "metadata/exception.h"
25 #include "metadata/appdomain.h"
26 #include "mono/metadata/abi-details.h"
27 #include "mono/metadata/debug-helpers.h"
28 #include "mono/metadata/threads.h"
29 #include "mono/metadata/monitor.h"
30 #include "mono/metadata/class-internals.h"
31 #include "mono/metadata/metadata-internals.h"
32 #include "mono/metadata/domain-internals.h"
33 #include "mono/metadata/gc-internals.h"
34 #include "mono/metadata/threads-types.h"
35 #include "mono/metadata/string-icalls.h"
36 #include "mono/metadata/attrdefs.h"
37 #include "mono/metadata/gc-internals.h"
38 #include "mono/metadata/cominterop.h"
39 #include "mono/metadata/remoting.h"
40 #include "mono/metadata/reflection-internals.h"
41 #include "mono/metadata/threadpool-ms.h"
42 #include "mono/utils/mono-counters.h"
43 #include "mono/utils/mono-tls.h"
44 #include "mono/utils/mono-memory-model.h"
45 #include "mono/utils/atomic.h"
46 #include <mono/utils/mono-threads.h>
47 #include <mono/utils/mono-error-internals.h>
52 /* #define DEBUG_RUNTIME_CODE */
54 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
58 #include "mono/cil/opcode.def"
64 * This mutex protects the various marshalling related caches in MonoImage
65 * and a few other data structures static to this file.
67 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
68 * runtime locking latice. Which means it can take simple locks suck as the image lock.
70 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
71 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
72 static mono_mutex_t marshal_mutex;
73 static gboolean marshal_mutex_initialized;
75 static MonoNativeTlsKey last_error_tls_id;
77 static MonoNativeTlsKey load_type_info_tls_id;
79 static gboolean use_aot_wrappers;
82 delegate_hash_table_add (MonoDelegate *d);
85 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
88 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
91 mono_struct_delete_old (MonoClass *klass, char *ptr);
94 mono_marshal_string_to_utf16 (MonoString *s);
97 mono_marshal_string_to_utf16_copy (MonoString *s);
100 mono_string_to_lpstr (MonoString *string_obj);
102 static MonoStringBuilder *
103 mono_string_utf8_to_builder2 (char *text);
105 static MonoStringBuilder *
106 mono_string_utf16_to_builder2 (gunichar2 *text);
109 mono_string_new_len_wrapper (const char *text, guint length);
112 mono_string_from_byvalstr (const char *data, int len);
115 mono_string_from_byvalwstr (gunichar2 *data, int len);
118 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
121 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
124 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
127 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
129 static MonoAsyncResult *
130 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
133 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
136 mono_marshal_set_last_error_windows (int error);
139 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
141 static void init_safe_handle (void);
144 ves_icall_marshal_alloc (gulong size);
146 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
147 static MonoMethod *sh_dangerous_add_ref;
148 static MonoMethod *sh_dangerous_release;
154 sh_dangerous_add_ref = mono_class_get_method_from_name (
155 mono_defaults.safehandle_class, "DangerousAddRef", 1);
156 sh_dangerous_release = mono_class_get_method_from_name (
157 mono_defaults.safehandle_class, "DangerousRelease", 0);
161 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
163 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
165 mono_register_jit_icall (func, name, sig, save);
169 mono_signature_no_pinvoke (MonoMethod *method)
171 MonoMethodSignature *sig = mono_method_signature (method);
173 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
174 sig->pinvoke = FALSE;
181 mono_marshal_init_tls (void)
183 mono_native_tls_alloc (&last_error_tls_id, NULL);
184 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
188 mono_marshal_init (void)
190 static gboolean module_initialized = FALSE;
192 if (!module_initialized) {
193 module_initialized = TRUE;
194 mono_os_mutex_init_recursive (&marshal_mutex);
195 marshal_mutex_initialized = TRUE;
197 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
198 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
199 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
200 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
201 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
202 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
203 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
204 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
205 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
206 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
207 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
208 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
209 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
210 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
211 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
212 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
213 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
214 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
215 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
216 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
217 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
218 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
219 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
220 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
221 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
222 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
223 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
224 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
225 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
226 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
227 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
228 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
229 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
230 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
231 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
232 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
233 register_icall (g_free, "g_free", "void ptr", FALSE);
234 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
235 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
236 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
237 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
238 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
239 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
240 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
241 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
242 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
243 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
245 mono_cominterop_init ();
246 mono_remoting_init ();
248 if (mono_threads_is_coop_enabled ()) {
249 register_icall (mono_threads_prepare_blocking, "mono_threads_prepare_blocking", "ptr ptr", FALSE);
250 register_icall (mono_threads_finish_blocking, "mono_threads_finish_blocking", "void ptr ptr", FALSE);
251 register_icall (mono_threads_reset_blocking_start, "mono_threads_reset_blocking_start","ptr ptr", TRUE);
252 register_icall (mono_threads_reset_blocking_end, "mono_threads_reset_blocking_end","void ptr ptr", TRUE);
258 mono_marshal_cleanup (void)
260 mono_cominterop_cleanup ();
262 mono_native_tls_free (load_type_info_tls_id);
263 mono_native_tls_free (last_error_tls_id);
264 mono_os_mutex_destroy (&marshal_mutex);
265 marshal_mutex_initialized = FALSE;
269 mono_marshal_lock_internal (void)
271 mono_marshal_lock ();
275 mono_marshal_unlock_internal (void)
277 mono_marshal_unlock ();
281 mono_delegate_to_ftnptr (MonoDelegate *delegate)
283 MonoMethod *method, *wrapper;
285 uint32_t target_handle = 0;
290 if (delegate->delegate_trampoline)
291 return delegate->delegate_trampoline;
293 klass = ((MonoObject *)delegate)->vtable->klass;
294 g_assert (klass->delegate);
296 method = delegate->method;
297 if (delegate->method_is_virtual)
298 method = mono_object_get_virtual_method (delegate->target, method);
300 if (mono_method_signature (method)->pinvoke) {
301 const char *exc_class, *exc_arg;
304 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
306 g_assert (exc_class);
307 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
312 if (delegate->target) {
313 /* Produce a location which can be embedded in JITted code */
314 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
317 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
319 delegate->delegate_trampoline = mono_compile_method (wrapper);
321 // Add the delegate to the delegate hash table
322 delegate_hash_table_add (delegate);
324 /* when the object is collected, collect the dynamic method, too */
325 mono_object_register_finalizer ((MonoObject*)delegate);
327 return delegate->delegate_trampoline;
331 * this hash table maps from a delegate trampoline object to a weak reference
332 * of the delegate. As an optimizations with a non-moving GC we store the
333 * object pointer itself, otherwise we use a GC handle.
335 static GHashTable *delegate_hash_table;
338 delegate_hash_table_new (void) {
339 return g_hash_table_new (NULL, NULL);
343 delegate_hash_table_remove (MonoDelegate *d)
345 guint32 gchandle = 0;
347 mono_marshal_lock ();
348 if (delegate_hash_table == NULL)
349 delegate_hash_table = delegate_hash_table_new ();
350 if (mono_gc_is_moving ())
351 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
352 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
353 mono_marshal_unlock ();
354 if (gchandle && mono_gc_is_moving ())
355 mono_gchandle_free (gchandle);
359 delegate_hash_table_add (MonoDelegate *d)
362 guint32 old_gchandle;
364 mono_marshal_lock ();
365 if (delegate_hash_table == NULL)
366 delegate_hash_table = delegate_hash_table_new ();
367 if (mono_gc_is_moving ()) {
368 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
369 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
370 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
372 mono_gchandle_free (old_gchandle);
374 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
376 mono_marshal_unlock ();
380 * mono_marshal_use_aot_wrappers:
382 * Instructs this module to use AOT compatible wrappers.
385 mono_marshal_use_aot_wrappers (gboolean use)
387 use_aot_wrappers = use;
391 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
393 static MonoClass *UnmanagedFunctionPointerAttribute;
394 MonoCustomAttrInfo *cinfo;
395 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
397 if (!UnmanagedFunctionPointerAttribute)
398 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
400 /* The attribute is only available in Net 2.0 */
401 if (UnmanagedFunctionPointerAttribute) {
403 * The pinvoke attributes are stored in a real custom attribute so we have to
406 cinfo = mono_custom_attrs_from_class (klass);
407 if (cinfo && !mono_runtime_get_no_exec ()) {
409 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, UnmanagedFunctionPointerAttribute, &error);
411 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
413 if (!mono_error_ok (&error)) {
414 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
415 mono_error_cleanup (&error);
419 mono_custom_attrs_free (cinfo);
425 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
434 mono_marshal_lock ();
435 if (delegate_hash_table == NULL)
436 delegate_hash_table = delegate_hash_table_new ();
438 if (mono_gc_is_moving ()) {
439 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
440 mono_marshal_unlock ();
442 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
446 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
447 mono_marshal_unlock ();
450 /* This is a native function, so construct a delegate for it */
451 MonoMethodSignature *sig;
453 MonoMarshalSpec **mspecs;
454 MonoMethod *invoke = mono_get_delegate_invoke (klass);
455 MonoMethodPInvoke piinfo;
456 MonoObject *this_obj;
459 if (use_aot_wrappers) {
460 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
461 this_obj = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
463 memset (&piinfo, 0, sizeof (piinfo));
464 parse_unmanaged_function_pointer_attr (klass, &piinfo);
466 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
467 mono_method_get_marshal_info (invoke, mspecs);
468 /* Freed below so don't alloc from mempool */
469 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
472 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
475 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
477 mono_metadata_free_marshal_spec (mspecs [i]);
482 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
483 mono_error_raise_exception (&error); /* FIXME don't raise here */
484 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, 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 (), (char *)mono_get_addr_from_ftnptr (ptr));
516 method = mono_jit_info_get_method (ji);
517 method_data = (void **)((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 = (void **)malloc(sizeof(gpointer) * nativeArraySize);
592 for(i = 0; i < nativeArraySize; ++i)
593 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)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 ((const gchar *)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)
710 static MonoClass *string_builder_class;
711 static MonoMethod *sb_ctor;
712 static void *args [1];
713 int initial_len = starting_string_length;
719 MonoMethodDesc *desc;
722 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
723 g_assert (string_builder_class);
724 desc = mono_method_desc_new (":.ctor(int)", FALSE);
725 m = mono_method_desc_search_in_class (desc, string_builder_class);
727 mono_method_desc_free (desc);
728 mono_memory_barrier ();
732 // We make a new array in the _to_builder function, so this
733 // array will always be garbage collected.
734 args [0] = &initial_len;
736 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
738 g_assert (sb && mono_error_ok (&error)); /* FIXME don't swallow the error */
740 mono_runtime_invoke (sb_ctor, sb, args, &exc);
743 g_assert (sb->chunkChars->max_length >= initial_len);
749 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
751 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
752 gunichar2 *charSrc = (gunichar2 *)text;
753 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
755 sb->chunkLength = string_len;
761 mono_string_utf16_to_builder2 (gunichar2 *text)
767 for (len = 0; text [len] != 0; ++len);
769 MonoStringBuilder *sb = mono_string_builder_new (len);
770 mono_string_utf16_to_builder (sb, text);
776 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
781 int len = strlen (text);
782 if (len > mono_string_builder_capacity (sb))
783 len = mono_string_builder_capacity (sb);
785 GError *error = NULL;
787 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
790 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
791 mono_string_utf16_to_builder_copy (sb, ut, copied);
793 g_error_free (error);
799 mono_string_utf8_to_builder2 (char *text)
804 int len = strlen (text);
805 MonoStringBuilder *sb = mono_string_builder_new (len);
806 mono_string_utf8_to_builder (sb, text);
813 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
819 for (len = 0; text [len] != 0; ++len);
821 if (len > mono_string_builder_capacity (sb))
822 len = mono_string_builder_capacity (sb);
824 mono_string_utf16_to_builder_copy (sb, text, len);
828 * mono_string_builder_to_utf8:
829 * @sb: the string builder
831 * Converts to utf8 the contents of the MonoStringBuilder.
833 * Returns: a utf8 string with the contents of the StringBuilder.
835 * The return value must be released with g_free.
838 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
841 GError *gerror = NULL;
847 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
849 guint str_len = mono_string_builder_string_length (sb);
851 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
854 g_error_free (gerror);
856 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
859 guint len = mono_string_builder_capacity (sb) + 1;
860 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
861 if (!mono_error_ok (&error)) {
864 mono_error_raise_exception (&error);
867 g_assert (str_len < len);
868 memcpy (res, tmp, str_len * sizeof (gchar));
878 * mono_string_builder_to_utf16:
879 * @sb: the string builder
881 * Converts to utf16 the contents of the MonoStringBuilder.
883 * Returns: a utf16 string with the contents of the StringBuilder.
885 * The return value must not be freed.
888 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
895 g_assert (sb->chunkChars);
897 guint len = mono_string_builder_capacity (sb);
902 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
903 mono_error_raise_exception (&error);
910 MonoStringBuilder* chunk = sb;
912 if (chunk->chunkLength > 0) {
913 // Check that we will not overrun our boundaries.
914 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
916 if (chunk->chunkLength <= len) {
917 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
919 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
922 len -= chunk->chunkLength;
924 chunk = chunk->chunkPrevious;
925 } while (chunk != NULL);
931 mono_string_to_lpstr (MonoString *s)
936 GError *error = NULL;
942 as = CoTaskMemAlloc (1);
947 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
949 MonoException *exc = mono_get_exception_argument ("string", error->message);
950 g_error_free (error);
951 mono_raise_exception(exc);
954 as = CoTaskMemAlloc (len + 1);
955 memcpy (as, tmp, len + 1);
960 return mono_string_to_utf8 (s);
965 mono_string_to_ansibstr (MonoString *string_obj)
967 g_error ("UnmanagedMarshal.BStr is not implemented.");
972 * mono_string_to_byvalstr:
973 * @dst: Where to store the null-terminated utf8 decoded string.
974 * @src: the MonoString to copy.
975 * @size: the maximum number of bytes to copy.
977 * Copies the MonoString pointed to by @src as a utf8 string
978 * into @dst, it copies at most @size bytes into the destination.
981 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
986 g_assert (dst != NULL);
989 memset (dst, 0, size);
993 s = mono_string_to_utf8 (src);
994 len = MIN (size, strlen (s));
997 memcpy (dst, s, len);
1002 * mono_string_to_byvalwstr:
1003 * @dst: Where to store the null-terminated utf16 decoded string.
1004 * @src: the MonoString to copy.
1005 * @size: the maximum number of bytes to copy.
1007 * Copies the MonoString pointed to by @src as a utf16 string into
1008 * @dst, it copies at most @size bytes into the destination (including
1009 * a terminating 16-bit zero terminator).
1012 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1016 g_assert (dst != NULL);
1017 g_assert (size > 1);
1020 memset (dst, 0, size * 2);
1024 len = MIN (size, (mono_string_length (src)));
1025 memcpy (dst, mono_string_chars (src), size * 2);
1026 if (size <= mono_string_length (src))
1028 *((gunichar2 *) dst + len) = 0;
1032 mono_string_new_len_wrapper (const char *text, guint length)
1034 return mono_string_new_len (mono_domain_get (), text, length);
1040 * mono_mb_emit_exception_marshal_directive:
1042 * This function assumes ownership of MSG, which should be malloc-ed.
1045 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1050 s = mono_image_strdup (mb->method->klass->image, msg);
1055 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1058 #endif /* !DISABLE_JIT */
1061 mono_type_to_ldind (MonoType *type)
1067 switch (type->type) {
1069 return CEE_LDIND_I1;
1071 case MONO_TYPE_BOOLEAN:
1072 return CEE_LDIND_U1;
1074 return CEE_LDIND_I2;
1076 case MONO_TYPE_CHAR:
1077 return CEE_LDIND_U2;
1079 return CEE_LDIND_I4;
1081 return CEE_LDIND_U4;
1085 case MONO_TYPE_FNPTR:
1087 case MONO_TYPE_CLASS:
1088 case MONO_TYPE_STRING:
1089 case MONO_TYPE_OBJECT:
1090 case MONO_TYPE_SZARRAY:
1091 case MONO_TYPE_ARRAY:
1092 return CEE_LDIND_REF;
1095 return CEE_LDIND_I8;
1097 return CEE_LDIND_R4;
1099 return CEE_LDIND_R8;
1100 case MONO_TYPE_VALUETYPE:
1101 if (type->data.klass->enumtype) {
1102 type = mono_class_enum_basetype (type->data.klass);
1106 case MONO_TYPE_TYPEDBYREF:
1108 case MONO_TYPE_GENERICINST:
1109 type = &type->data.generic_class->container_class->byval_arg;
1112 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1118 mono_type_to_stind (MonoType *type)
1124 switch (type->type) {
1127 case MONO_TYPE_BOOLEAN:
1128 return CEE_STIND_I1;
1131 case MONO_TYPE_CHAR:
1132 return CEE_STIND_I2;
1135 return CEE_STIND_I4;
1139 case MONO_TYPE_FNPTR:
1141 case MONO_TYPE_CLASS:
1142 case MONO_TYPE_STRING:
1143 case MONO_TYPE_OBJECT:
1144 case MONO_TYPE_SZARRAY:
1145 case MONO_TYPE_ARRAY:
1146 return CEE_STIND_REF;
1149 return CEE_STIND_I8;
1151 return CEE_STIND_R4;
1153 return CEE_STIND_R8;
1154 case MONO_TYPE_VALUETYPE:
1155 if (type->data.klass->enumtype) {
1156 type = mono_class_enum_basetype (type->data.klass);
1160 case MONO_TYPE_TYPEDBYREF:
1162 case MONO_TYPE_GENERICINST:
1163 type = &type->data.generic_class->container_class->byval_arg;
1166 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1174 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1177 case MONO_MARSHAL_CONV_BOOL_I4:
1178 mono_mb_emit_ldloc (mb, 1);
1179 mono_mb_emit_ldloc (mb, 0);
1180 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1181 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1182 mono_mb_emit_byte (mb, 3);
1183 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1184 mono_mb_emit_byte (mb, CEE_BR_S);
1185 mono_mb_emit_byte (mb, 1);
1186 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1187 mono_mb_emit_byte (mb, CEE_STIND_I1);
1189 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1190 mono_mb_emit_ldloc (mb, 1);
1191 mono_mb_emit_ldloc (mb, 0);
1192 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1193 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1194 mono_mb_emit_byte (mb, 3);
1195 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1196 mono_mb_emit_byte (mb, CEE_BR_S);
1197 mono_mb_emit_byte (mb, 1);
1198 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1199 mono_mb_emit_byte (mb, CEE_STIND_I1);
1201 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1202 MonoClass *eklass = NULL;
1205 if (type->type == MONO_TYPE_SZARRAY) {
1206 eklass = type->data.klass;
1208 g_assert_not_reached ();
1211 esize = mono_class_native_size (eklass, NULL);
1213 /* create a new array */
1214 mono_mb_emit_ldloc (mb, 1);
1215 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1216 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1217 mono_mb_emit_byte (mb, CEE_STIND_I);
1219 if (eklass->blittable) {
1220 /* copy the elements */
1221 mono_mb_emit_ldloc (mb, 1);
1222 mono_mb_emit_byte (mb, CEE_LDIND_I);
1223 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1224 mono_mb_emit_byte (mb, CEE_ADD);
1225 mono_mb_emit_ldloc (mb, 0);
1226 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1227 mono_mb_emit_byte (mb, CEE_PREFIX1);
1228 mono_mb_emit_byte (mb, CEE_CPBLK);
1231 int array_var, src_var, dst_var, index_var;
1232 guint32 label2, label3;
1234 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1235 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1236 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1239 mono_mb_emit_ldloc (mb, 1);
1240 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1241 mono_mb_emit_stloc (mb, array_var);
1243 /* save the old src pointer */
1244 mono_mb_emit_ldloc (mb, 0);
1245 mono_mb_emit_stloc (mb, src_var);
1246 /* save the old dst pointer */
1247 mono_mb_emit_ldloc (mb, 1);
1248 mono_mb_emit_stloc (mb, dst_var);
1250 /* Emit marshalling loop */
1251 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1252 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1253 mono_mb_emit_stloc (mb, index_var);
1256 label2 = mono_mb_get_label (mb);
1257 mono_mb_emit_ldloc (mb, index_var);
1258 mono_mb_emit_ldloc (mb, array_var);
1259 mono_mb_emit_byte (mb, CEE_LDLEN);
1260 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1262 /* src is already set */
1265 mono_mb_emit_ldloc (mb, array_var);
1266 mono_mb_emit_ldloc (mb, index_var);
1267 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1268 mono_mb_emit_stloc (mb, 1);
1270 /* Do the conversion */
1271 emit_struct_conv (mb, eklass, TRUE);
1274 mono_mb_emit_add_to_local (mb, index_var, 1);
1276 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1278 mono_mb_patch_branch (mb, label3);
1280 /* restore the old src pointer */
1281 mono_mb_emit_ldloc (mb, src_var);
1282 mono_mb_emit_stloc (mb, 0);
1283 /* restore the old dst pointer */
1284 mono_mb_emit_ldloc (mb, dst_var);
1285 mono_mb_emit_stloc (mb, 1);
1289 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1290 MonoClass *eclass = mono_defaults.char_class;
1292 /* create a new array */
1293 mono_mb_emit_ldloc (mb, 1);
1294 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1295 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1296 mono_mb_emit_byte (mb, CEE_STIND_REF);
1298 mono_mb_emit_ldloc (mb, 1);
1299 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1300 mono_mb_emit_ldloc (mb, 0);
1301 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1302 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1305 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1306 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1307 mono_mb_emit_ldloc (mb, 1);
1308 mono_mb_emit_ldloc (mb, 0);
1309 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1310 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1312 mono_mb_emit_ldloc (mb, 1);
1313 mono_mb_emit_ldloc (mb, 0);
1314 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1316 mono_mb_emit_byte (mb, CEE_STIND_REF);
1318 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1319 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1320 mono_mb_emit_ldloc (mb, 1);
1321 mono_mb_emit_ldloc (mb, 0);
1322 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1323 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1325 mono_mb_emit_ldloc (mb, 1);
1326 mono_mb_emit_ldloc (mb, 0);
1327 mono_mb_emit_icall (mb, mono_string_from_utf16);
1329 mono_mb_emit_byte (mb, CEE_STIND_REF);
1331 case MONO_MARSHAL_CONV_STR_LPTSTR:
1332 mono_mb_emit_ldloc (mb, 1);
1333 mono_mb_emit_ldloc (mb, 0);
1334 mono_mb_emit_byte (mb, CEE_LDIND_I);
1336 mono_mb_emit_icall (mb, mono_string_from_utf16);
1338 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1340 mono_mb_emit_byte (mb, CEE_STIND_REF);
1342 case MONO_MARSHAL_CONV_STR_LPSTR:
1343 mono_mb_emit_ldloc (mb, 1);
1344 mono_mb_emit_ldloc (mb, 0);
1345 mono_mb_emit_byte (mb, CEE_LDIND_I);
1346 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1347 mono_mb_emit_byte (mb, CEE_STIND_REF);
1349 case MONO_MARSHAL_CONV_STR_LPWSTR:
1350 mono_mb_emit_ldloc (mb, 1);
1351 mono_mb_emit_ldloc (mb, 0);
1352 mono_mb_emit_byte (mb, CEE_LDIND_I);
1353 mono_mb_emit_icall (mb, mono_string_from_utf16);
1354 mono_mb_emit_byte (mb, CEE_STIND_REF);
1356 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1357 MonoClass *klass = mono_class_from_mono_type (type);
1358 int src_var, dst_var;
1360 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1361 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1363 /* *dst = new object */
1364 mono_mb_emit_ldloc (mb, 1);
1365 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1366 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1367 mono_mb_emit_byte (mb, CEE_STIND_REF);
1369 /* save the old src pointer */
1370 mono_mb_emit_ldloc (mb, 0);
1371 mono_mb_emit_stloc (mb, src_var);
1372 /* save the old dst pointer */
1373 mono_mb_emit_ldloc (mb, 1);
1374 mono_mb_emit_stloc (mb, dst_var);
1376 /* dst = pointer to newly created object data */
1377 mono_mb_emit_ldloc (mb, 1);
1378 mono_mb_emit_byte (mb, CEE_LDIND_I);
1379 mono_mb_emit_icon (mb, sizeof (MonoObject));
1380 mono_mb_emit_byte (mb, CEE_ADD);
1381 mono_mb_emit_stloc (mb, 1);
1383 emit_struct_conv (mb, klass, TRUE);
1385 /* restore the old src pointer */
1386 mono_mb_emit_ldloc (mb, src_var);
1387 mono_mb_emit_stloc (mb, 0);
1388 /* restore the old dst pointer */
1389 mono_mb_emit_ldloc (mb, dst_var);
1390 mono_mb_emit_stloc (mb, 1);
1393 case MONO_MARSHAL_CONV_DEL_FTN: {
1394 MonoClass *klass = mono_class_from_mono_type (type);
1396 mono_mb_emit_ldloc (mb, 1);
1397 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1398 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1399 mono_mb_emit_ldloc (mb, 0);
1400 mono_mb_emit_byte (mb, CEE_LDIND_I);
1401 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1402 mono_mb_emit_byte (mb, CEE_STIND_REF);
1405 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1406 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1410 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1411 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1412 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1413 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1415 #endif /* DISABLE_COM */
1417 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1419 * Passing SafeHandles as ref does not allow the unmanaged code
1420 * to change the SafeHandle value. If the value is changed,
1421 * we should issue a diagnostic exception (NotSupportedException)
1422 * that informs the user that changes to handles in unmanaged code
1425 * Since we currently have no access to the original
1426 * SafeHandle that was used during the marshalling,
1427 * for now we just ignore this, and ignore/discard any
1428 * changes that might have happened to the handle.
1433 case MONO_MARSHAL_CONV_HANDLEREF: {
1435 * Passing HandleRefs in a struct that is ref()ed does not
1436 * copy the values back to the HandleRef
1441 case MONO_MARSHAL_CONV_STR_BSTR:
1442 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1443 case MONO_MARSHAL_CONV_STR_TBSTR:
1444 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1446 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1448 mono_mb_emit_exception_marshal_directive (mb, msg);
1455 conv_to_icall (MonoMarshalConv conv)
1458 case MONO_MARSHAL_CONV_STR_LPWSTR:
1459 return mono_marshal_string_to_utf16;
1460 case MONO_MARSHAL_CONV_LPWSTR_STR:
1461 return mono_string_from_utf16;
1462 case MONO_MARSHAL_CONV_LPTSTR_STR:
1463 return mono_string_new_wrapper;
1464 case MONO_MARSHAL_CONV_LPSTR_STR:
1465 return mono_string_new_wrapper;
1466 case MONO_MARSHAL_CONV_STR_LPTSTR:
1468 return mono_marshal_string_to_utf16;
1470 return mono_string_to_lpstr;
1472 case MONO_MARSHAL_CONV_STR_LPSTR:
1473 return mono_string_to_lpstr;
1474 case MONO_MARSHAL_CONV_STR_BSTR:
1475 return mono_string_to_bstr;
1476 case MONO_MARSHAL_CONV_BSTR_STR:
1477 return mono_string_from_bstr;
1478 case MONO_MARSHAL_CONV_STR_TBSTR:
1479 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1480 return mono_string_to_ansibstr;
1481 case MONO_MARSHAL_CONV_SB_LPSTR:
1482 return mono_string_builder_to_utf8;
1483 case MONO_MARSHAL_CONV_SB_LPTSTR:
1485 return mono_string_builder_to_utf16;
1487 return mono_string_builder_to_utf8;
1489 case MONO_MARSHAL_CONV_SB_LPWSTR:
1490 return mono_string_builder_to_utf16;
1491 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1492 return mono_array_to_savearray;
1493 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1494 return mono_array_to_lparray;
1495 case MONO_MARSHAL_FREE_LPARRAY:
1496 return mono_free_lparray;
1497 case MONO_MARSHAL_CONV_DEL_FTN:
1498 return mono_delegate_to_ftnptr;
1499 case MONO_MARSHAL_CONV_FTN_DEL:
1500 return mono_ftnptr_to_delegate;
1501 case MONO_MARSHAL_CONV_LPSTR_SB:
1502 return mono_string_utf8_to_builder;
1503 case MONO_MARSHAL_CONV_LPTSTR_SB:
1505 return mono_string_utf16_to_builder;
1507 return mono_string_utf8_to_builder;
1509 case MONO_MARSHAL_CONV_LPWSTR_SB:
1510 return mono_string_utf16_to_builder;
1511 case MONO_MARSHAL_FREE_ARRAY:
1512 return mono_marshal_free_array;
1513 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1514 return mono_string_to_byvalstr;
1515 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1516 return mono_string_to_byvalwstr;
1518 g_assert_not_reached ();
1525 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1530 case MONO_MARSHAL_CONV_BOOL_I4:
1531 mono_mb_emit_ldloc (mb, 1);
1532 mono_mb_emit_ldloc (mb, 0);
1533 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1534 mono_mb_emit_byte (mb, CEE_STIND_I4);
1536 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1537 mono_mb_emit_ldloc (mb, 1);
1538 mono_mb_emit_ldloc (mb, 0);
1539 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1540 mono_mb_emit_byte (mb, CEE_NEG);
1541 mono_mb_emit_byte (mb, CEE_STIND_I2);
1543 case MONO_MARSHAL_CONV_STR_LPWSTR:
1544 case MONO_MARSHAL_CONV_STR_LPSTR:
1545 case MONO_MARSHAL_CONV_STR_LPTSTR:
1546 case MONO_MARSHAL_CONV_STR_BSTR:
1547 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1548 case MONO_MARSHAL_CONV_STR_TBSTR: {
1551 /* free space if free == true */
1552 mono_mb_emit_ldloc (mb, 2);
1553 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1554 mono_mb_emit_ldloc (mb, 1);
1555 mono_mb_emit_byte (mb, CEE_LDIND_I);
1556 mono_mb_emit_icall (mb, g_free);
1557 mono_mb_patch_short_branch (mb, pos);
1559 mono_mb_emit_ldloc (mb, 1);
1560 mono_mb_emit_ldloc (mb, 0);
1561 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1562 mono_mb_emit_icall (mb, conv_to_icall (conv));
1563 mono_mb_emit_byte (mb, CEE_STIND_I);
1566 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1567 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1568 case MONO_MARSHAL_CONV_DEL_FTN:
1569 mono_mb_emit_ldloc (mb, 1);
1570 mono_mb_emit_ldloc (mb, 0);
1571 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1572 mono_mb_emit_icall (mb, conv_to_icall (conv));
1573 mono_mb_emit_byte (mb, CEE_STIND_I);
1575 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1576 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1579 mono_mb_emit_ldloc (mb, 1); /* dst */
1580 mono_mb_emit_ldloc (mb, 0);
1581 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1582 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1583 mono_mb_emit_icall (mb, conv_to_icall (conv));
1586 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1587 MonoClass *eklass = NULL;
1590 if (type->type == MONO_TYPE_SZARRAY) {
1591 eklass = type->data.klass;
1593 g_assert_not_reached ();
1596 if (eklass->valuetype)
1597 esize = mono_class_native_size (eklass, NULL);
1599 esize = sizeof (gpointer);
1601 mono_mb_emit_ldloc (mb, 0);
1602 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1603 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1605 if (eklass->blittable) {
1606 mono_mb_emit_ldloc (mb, 1);
1607 mono_mb_emit_ldloc (mb, 0);
1608 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1609 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1610 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1611 mono_mb_emit_byte (mb, CEE_PREFIX1);
1612 mono_mb_emit_byte (mb, CEE_CPBLK);
1614 int array_var, src_var, dst_var, index_var;
1615 guint32 label2, label3;
1617 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1618 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1619 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1622 mono_mb_emit_ldloc (mb, 0);
1623 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1624 mono_mb_emit_stloc (mb, array_var);
1626 /* save the old src pointer */
1627 mono_mb_emit_ldloc (mb, 0);
1628 mono_mb_emit_stloc (mb, src_var);
1629 /* save the old dst pointer */
1630 mono_mb_emit_ldloc (mb, 1);
1631 mono_mb_emit_stloc (mb, dst_var);
1633 /* Emit marshalling loop */
1634 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1635 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1636 mono_mb_emit_stloc (mb, index_var);
1639 label2 = mono_mb_get_label (mb);
1640 mono_mb_emit_ldloc (mb, index_var);
1641 mono_mb_emit_ldloc (mb, array_var);
1642 mono_mb_emit_byte (mb, CEE_LDLEN);
1643 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1646 mono_mb_emit_ldloc (mb, array_var);
1647 mono_mb_emit_ldloc (mb, index_var);
1648 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1649 mono_mb_emit_stloc (mb, 0);
1651 /* dst is already set */
1653 /* Do the conversion */
1654 emit_struct_conv (mb, eklass, FALSE);
1657 mono_mb_emit_add_to_local (mb, index_var, 1);
1659 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1661 mono_mb_patch_branch (mb, label3);
1663 /* restore the old src pointer */
1664 mono_mb_emit_ldloc (mb, src_var);
1665 mono_mb_emit_stloc (mb, 0);
1666 /* restore the old dst pointer */
1667 mono_mb_emit_ldloc (mb, dst_var);
1668 mono_mb_emit_stloc (mb, 1);
1671 mono_mb_patch_branch (mb, pos);
1674 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1675 mono_mb_emit_ldloc (mb, 0);
1676 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1677 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1679 mono_mb_emit_ldloc (mb, 1);
1680 mono_mb_emit_ldloc (mb, 0);
1681 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1682 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1683 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1684 mono_mb_patch_short_branch (mb, pos);
1687 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1688 int src_var, dst_var;
1690 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1691 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1693 mono_mb_emit_ldloc (mb, 0);
1694 mono_mb_emit_byte (mb, CEE_LDIND_I);
1695 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1697 /* save the old src pointer */
1698 mono_mb_emit_ldloc (mb, 0);
1699 mono_mb_emit_stloc (mb, src_var);
1700 /* save the old dst pointer */
1701 mono_mb_emit_ldloc (mb, 1);
1702 mono_mb_emit_stloc (mb, dst_var);
1704 /* src = pointer to object data */
1705 mono_mb_emit_ldloc (mb, 0);
1706 mono_mb_emit_byte (mb, CEE_LDIND_I);
1707 mono_mb_emit_icon (mb, sizeof (MonoObject));
1708 mono_mb_emit_byte (mb, CEE_ADD);
1709 mono_mb_emit_stloc (mb, 0);
1711 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1713 /* restore the old src pointer */
1714 mono_mb_emit_ldloc (mb, src_var);
1715 mono_mb_emit_stloc (mb, 0);
1716 /* restore the old dst pointer */
1717 mono_mb_emit_ldloc (mb, dst_var);
1718 mono_mb_emit_stloc (mb, 1);
1720 mono_mb_patch_branch (mb, pos);
1725 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1726 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1727 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1728 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1730 #endif /* DISABLE_COM */
1732 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1735 mono_mb_emit_ldloc (mb, 0);
1736 mono_mb_emit_byte (mb, CEE_LDIND_I);
1737 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1738 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1739 mono_mb_patch_branch (mb, pos);
1741 /* Pull the handle field from SafeHandle */
1742 mono_mb_emit_ldloc (mb, 1);
1743 mono_mb_emit_ldloc (mb, 0);
1744 mono_mb_emit_byte (mb, CEE_LDIND_I);
1745 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1746 mono_mb_emit_byte (mb, CEE_LDIND_I);
1747 mono_mb_emit_byte (mb, CEE_STIND_I);
1751 case MONO_MARSHAL_CONV_HANDLEREF: {
1752 mono_mb_emit_ldloc (mb, 1);
1753 mono_mb_emit_ldloc (mb, 0);
1754 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1755 mono_mb_emit_byte (mb, CEE_ADD);
1756 mono_mb_emit_byte (mb, CEE_LDIND_I);
1757 mono_mb_emit_byte (mb, CEE_STIND_I);
1762 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1763 MonoException *exc = mono_get_exception_not_implemented (msg);
1764 g_warning ("%s", msg);
1766 mono_raise_exception (exc);
1772 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1773 MonoMarshalNative string_encoding)
1775 MonoMarshalType *info;
1779 emit_struct_conv(mb, klass->parent, to_object);
1781 info = mono_marshal_load_type_info (klass);
1783 if (info->native_size == 0)
1786 if (klass->blittable) {
1787 int msize = mono_class_value_size (klass, NULL);
1788 g_assert (msize == info->native_size);
1789 mono_mb_emit_ldloc (mb, 1);
1790 mono_mb_emit_ldloc (mb, 0);
1791 mono_mb_emit_icon (mb, msize);
1792 mono_mb_emit_byte (mb, CEE_PREFIX1);
1793 mono_mb_emit_byte (mb, CEE_CPBLK);
1795 mono_mb_emit_add_to_local (mb, 0, msize);
1796 mono_mb_emit_add_to_local (mb, 1, msize);
1800 if (klass != mono_defaults.safehandle_class) {
1801 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1802 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1803 mono_type_full_name (&klass->byval_arg));
1804 mono_mb_emit_exception_marshal_directive (mb, msg);
1809 for (i = 0; i < info->num_fields; i++) {
1810 MonoMarshalNative ntype;
1811 MonoMarshalConv conv;
1812 MonoType *ftype = info->fields [i].field->type;
1815 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1817 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1820 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1823 msize = klass->instance_size - info->fields [i].field->offset;
1824 usize = info->native_size - info->fields [i].offset;
1826 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1827 usize = info->fields [i + 1].offset - info->fields [i].offset;
1830 if (klass != mono_defaults.safehandle_class){
1832 * FIXME: Should really check for usize==0 and msize>0, but we apply
1833 * the layout to the managed structure as well.
1836 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1837 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1838 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1839 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1840 "reference field at the same offset as another field.",
1841 mono_type_full_name (&klass->byval_arg));
1846 case MONO_MARSHAL_CONV_NONE: {
1849 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1850 ftype->type == MONO_TYPE_U) {
1851 mono_mb_emit_ldloc (mb, 1);
1852 mono_mb_emit_ldloc (mb, 0);
1853 mono_mb_emit_byte (mb, CEE_LDIND_I);
1854 mono_mb_emit_byte (mb, CEE_STIND_I);
1865 case MONO_TYPE_BOOLEAN:
1868 case MONO_TYPE_CHAR:
1874 mono_mb_emit_ldloc (mb, 1);
1875 mono_mb_emit_ldloc (mb, 0);
1876 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1878 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1879 mono_mb_emit_byte (mb, CEE_STIND_I2);
1881 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1882 mono_mb_emit_byte (mb, CEE_STIND_I1);
1885 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1886 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1889 case MONO_TYPE_VALUETYPE: {
1890 int src_var, dst_var;
1892 if (ftype->data.klass->enumtype) {
1893 ftype = mono_class_enum_basetype (ftype->data.klass);
1897 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1898 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1900 /* save the old src pointer */
1901 mono_mb_emit_ldloc (mb, 0);
1902 mono_mb_emit_stloc (mb, src_var);
1903 /* save the old dst pointer */
1904 mono_mb_emit_ldloc (mb, 1);
1905 mono_mb_emit_stloc (mb, dst_var);
1907 emit_struct_conv (mb, ftype->data.klass, to_object);
1909 /* restore the old src pointer */
1910 mono_mb_emit_ldloc (mb, src_var);
1911 mono_mb_emit_stloc (mb, 0);
1912 /* restore the old dst pointer */
1913 mono_mb_emit_ldloc (mb, dst_var);
1914 mono_mb_emit_stloc (mb, 1);
1917 case MONO_TYPE_OBJECT: {
1920 static MonoMethod *variant_clear = NULL;
1921 static MonoMethod *get_object_for_native_variant = NULL;
1924 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
1925 if (!get_object_for_native_variant)
1926 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1927 mono_mb_emit_ldloc (mb, 1);
1928 mono_mb_emit_ldloc (mb, 0);
1929 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1930 mono_mb_emit_byte (mb, CEE_STIND_REF);
1932 mono_mb_emit_ldloc (mb, 0);
1933 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1936 static MonoMethod *get_native_variant_for_object = NULL;
1938 if (!get_native_variant_for_object)
1939 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1941 mono_mb_emit_ldloc (mb, 0);
1942 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1943 mono_mb_emit_ldloc (mb, 1);
1944 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1947 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
1948 mono_mb_emit_exception_marshal_directive (mb, msg);
1954 g_warning ("marshaling type %02x not implemented", ftype->type);
1955 g_assert_not_reached ();
1960 int src_var, dst_var;
1962 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1963 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1965 /* save the old src pointer */
1966 mono_mb_emit_ldloc (mb, 0);
1967 mono_mb_emit_stloc (mb, src_var);
1968 /* save the old dst pointer */
1969 mono_mb_emit_ldloc (mb, 1);
1970 mono_mb_emit_stloc (mb, dst_var);
1973 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1975 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1977 /* restore the old src pointer */
1978 mono_mb_emit_ldloc (mb, src_var);
1979 mono_mb_emit_stloc (mb, 0);
1980 /* restore the old dst pointer */
1981 mono_mb_emit_ldloc (mb, dst_var);
1982 mono_mb_emit_stloc (mb, 1);
1987 mono_mb_emit_add_to_local (mb, 0, usize);
1988 mono_mb_emit_add_to_local (mb, 1, msize);
1990 mono_mb_emit_add_to_local (mb, 0, msize);
1991 mono_mb_emit_add_to_local (mb, 1, usize);
1997 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1999 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2003 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2005 /* Call DestroyStructure */
2006 /* FIXME: Only do this if needed */
2007 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2008 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2009 mono_mb_emit_ldloc (mb, struct_var);
2010 mono_mb_emit_icall (mb, mono_struct_delete_old);
2014 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2016 int pos_noabort, pos_noex;
2018 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2019 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2020 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2021 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2023 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2024 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2026 mono_mb_emit_icall (mb, checkpoint_func);
2027 /* Throw the exception returned by the checkpoint function, if any */
2028 mono_mb_emit_byte (mb, CEE_DUP);
2029 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2030 mono_mb_emit_byte (mb, CEE_THROW);
2031 mono_mb_patch_branch (mb, pos_noex);
2032 mono_mb_emit_byte (mb, CEE_POP);
2034 mono_mb_patch_branch (mb, pos_noabort);
2038 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2040 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2043 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2047 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2049 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2053 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2055 emit_thread_interrupt_checkpoint (mb);
2059 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2061 emit_thread_force_interrupt_checkpoint (mb);
2064 #endif /* DISABLE_JIT */
2066 static MonoAsyncResult *
2067 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2069 MonoMulticastDelegate *mcast_delegate;
2073 g_assert (delegate);
2074 mcast_delegate = (MonoMulticastDelegate *) delegate;
2075 if (mcast_delegate->delegates != NULL)
2076 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2078 #ifndef DISABLE_REMOTING
2079 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2081 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2082 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2084 /* If the target is a proxy, make a direct call. Is proxy's work
2085 // to make the call asynchronous.
2087 MonoMethodMessage *msg;
2088 MonoDelegate *async_callback;
2090 MonoAsyncResult *ares;
2092 MonoArray *out_args;
2093 method = delegate->method;
2095 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2096 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2097 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2098 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2099 MONO_OBJECT_SETREF (msg, async_result, ares);
2100 msg->call_type = CallType_BeginInvoke;
2103 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2105 mono_raise_exception ((MonoException *) exc);
2111 klass = delegate->object.vtable->klass;
2113 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2115 method = mono_get_delegate_invoke (klass);
2118 return mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params);
2124 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2126 int i, params_var, tmp_var;
2128 /* allocate local (pointer) *params[] */
2129 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2130 /* allocate local (pointer) tmp */
2131 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2133 /* alloate space on stack to store an array of pointers to the arguments */
2134 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2135 mono_mb_emit_byte (mb, CEE_PREFIX1);
2136 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2137 mono_mb_emit_stloc (mb, params_var);
2140 mono_mb_emit_ldloc (mb, params_var);
2141 mono_mb_emit_stloc (mb, tmp_var);
2143 if (save_this && sig->hasthis) {
2144 mono_mb_emit_ldloc (mb, tmp_var);
2145 mono_mb_emit_ldarg_addr (mb, 0);
2146 mono_mb_emit_byte (mb, CEE_STIND_I);
2147 /* tmp = tmp + sizeof (gpointer) */
2148 if (sig->param_count)
2149 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2153 for (i = 0; i < sig->param_count; i++) {
2154 mono_mb_emit_ldloc (mb, tmp_var);
2155 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2156 mono_mb_emit_byte (mb, CEE_STIND_I);
2157 /* tmp = tmp + sizeof (gpointer) */
2158 if (i < (sig->param_count - 1))
2159 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2165 #endif /* DISABLE_JIT */
2168 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2172 GString *res = g_string_new ("");
2175 g_string_append (res, prefix);
2176 g_string_append_c (res, '_');
2179 mono_type_get_desc (res, sig->ret, FALSE);
2182 g_string_append (res, "__this__");
2184 for (i = 0; i < sig->param_count; ++i) {
2185 g_string_append_c (res, '_');
2186 mono_type_get_desc (res, sig->params [i], FALSE);
2189 g_string_free (res, FALSE);
2194 * mono_marshal_get_string_encoding:
2196 * Return the string encoding which should be used for a given parameter.
2198 static MonoMarshalNative
2199 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2201 /* First try the parameter marshal info */
2203 if (spec->native == MONO_NATIVE_LPARRAY) {
2204 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2205 return spec->data.array_data.elem_type;
2208 return spec->native;
2212 return MONO_NATIVE_LPSTR;
2214 /* Then try the method level marshal info */
2215 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2216 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2217 return MONO_NATIVE_LPSTR;
2218 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2219 return MONO_NATIVE_LPWSTR;
2220 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2222 return MONO_NATIVE_LPWSTR;
2224 return MONO_NATIVE_LPSTR;
2227 return MONO_NATIVE_LPSTR;
2231 static MonoMarshalConv
2232 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2234 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2237 case MONO_NATIVE_LPWSTR:
2238 return MONO_MARSHAL_CONV_STR_LPWSTR;
2239 case MONO_NATIVE_LPSTR:
2240 case MONO_NATIVE_VBBYREFSTR:
2241 return MONO_MARSHAL_CONV_STR_LPSTR;
2242 case MONO_NATIVE_LPTSTR:
2243 return MONO_MARSHAL_CONV_STR_LPTSTR;
2244 case MONO_NATIVE_BSTR:
2245 return MONO_MARSHAL_CONV_STR_BSTR;
2247 return (MonoMarshalConv)-1;
2251 static MonoMarshalConv
2252 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2254 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2257 case MONO_NATIVE_LPWSTR:
2258 return MONO_MARSHAL_CONV_SB_LPWSTR;
2260 case MONO_NATIVE_LPSTR:
2261 return MONO_MARSHAL_CONV_SB_LPSTR;
2263 case MONO_NATIVE_LPTSTR:
2264 return MONO_MARSHAL_CONV_SB_LPTSTR;
2267 return (MonoMarshalConv)-1;
2271 static MonoMarshalConv
2272 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2274 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2279 case MONO_NATIVE_LPWSTR:
2281 return MONO_MARSHAL_CONV_LPWSTR_STR;
2282 case MONO_NATIVE_LPSTR:
2283 case MONO_NATIVE_VBBYREFSTR:
2284 return MONO_MARSHAL_CONV_LPSTR_STR;
2285 case MONO_NATIVE_LPTSTR:
2286 return MONO_MARSHAL_CONV_LPTSTR_STR;
2287 case MONO_NATIVE_BSTR:
2288 return MONO_MARSHAL_CONV_BSTR_STR;
2290 return (MonoMarshalConv)-1;
2294 static MonoMarshalConv
2295 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2297 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2302 case MONO_NATIVE_LPWSTR:
2304 * mono_string_builder_to_utf16 does not allocate a
2305 * new buffer, so no need to free it.
2308 return MONO_MARSHAL_CONV_LPWSTR_SB;
2309 case MONO_NATIVE_LPSTR:
2310 return MONO_MARSHAL_CONV_LPSTR_SB;
2312 case MONO_NATIVE_LPTSTR:
2313 return MONO_MARSHAL_CONV_LPTSTR_SB;
2316 return (MonoMarshalConv)-1;
2321 * Return whenever a field of a native structure or an array member needs to
2325 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2327 MonoMarshalNative encoding;
2330 case MONO_TYPE_VALUETYPE:
2331 /* FIXME: Optimize this */
2333 case MONO_TYPE_OBJECT:
2334 case MONO_TYPE_CLASS:
2335 if (t->data.klass == mono_defaults.stringbuilder_class) {
2337 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2341 case MONO_TYPE_STRING:
2342 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2343 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2350 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2353 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2356 mono_marshal_lock ();
2359 g_hash_table_new (hash_func, equal_func);
2360 mono_memory_barrier ();
2363 mono_marshal_unlock ();
2369 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2371 return get_cache (var, hash_func, equal_func);
2375 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2379 mono_marshal_lock ();
2380 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2381 mono_marshal_unlock ();
2388 * Create a MonoMethod from MB, set INFO as wrapper info.
2391 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2392 int max_stack, WrapperInfo *info)
2396 res = mono_mb_create_method (mb, sig, max_stack);
2398 mono_marshal_set_wrapper_info (res, info);
2402 /* Create the method from the builder and place it in the cache */
2404 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2405 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2406 int max_stack, WrapperInfo *info, gboolean *out_found)
2413 mono_marshal_lock ();
2414 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2415 mono_marshal_unlock ();
2418 newm = mono_mb_create_method (mb, sig, max_stack);
2419 mono_marshal_lock ();
2420 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2423 g_hash_table_insert (cache, key, res);
2424 mono_marshal_set_wrapper_info (res, info);
2425 mono_marshal_unlock ();
2429 mono_marshal_unlock ();
2430 mono_free_method (newm);
2438 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2439 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2442 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2446 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2449 int wrapper_type = wrapper->wrapper_type;
2452 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2455 info = mono_marshal_get_wrapper_info (wrapper);
2457 switch (wrapper_type) {
2458 case MONO_WRAPPER_REMOTING_INVOKE:
2459 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2460 case MONO_WRAPPER_XDOMAIN_INVOKE:
2461 m = info->d.remoting.method;
2462 if (wrapper->is_inflated) {
2466 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2467 * contains an uninflated method.
2469 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2470 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2474 case MONO_WRAPPER_SYNCHRONIZED:
2475 m = info->d.synchronized.method;
2476 if (wrapper->is_inflated) {
2479 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2480 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2484 case MONO_WRAPPER_UNBOX:
2485 return info->d.unbox.method;
2486 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2487 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2488 return info->d.managed_to_native.method;
2491 case MONO_WRAPPER_RUNTIME_INVOKE:
2492 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2493 return info->d.runtime_invoke.method;
2502 * mono_marshal_get_wrapper_info:
2504 * Retrieve the WrapperInfo structure associated with WRAPPER.
2507 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2509 g_assert (wrapper->wrapper_type);
2511 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2515 * mono_marshal_set_wrapper_info:
2517 * Set the WrapperInfo structure associated with the wrapper
2518 * method METHOD to INFO.
2521 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2525 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2528 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2533 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2537 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2538 info->subtype = subtype;
2543 * get_wrapper_target_class:
2545 * Return the class where a wrapper method should be placed.
2548 get_wrapper_target_class (MonoImage *image)
2555 * - can't put all wrappers into an mscorlib class, because they reference
2556 * metadata (signature) so they should be put into the same image as the
2557 * method they wrap, so they are unloaded together.
2558 * - putting them into a class with a type initalizer could cause the
2559 * initializer to be executed which can be a problem if the wrappers are
2561 * - putting them into an inflated class can cause problems if the the
2562 * class is deleted because it references an image which is unloaded.
2563 * To avoid these problems, we put the wrappers into the <Module> class of
2566 if (image_is_dynamic (image)) {
2567 klass = ((MonoDynamicImage*)image)->wrappers_type;
2569 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2570 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2578 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2579 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2583 * check_generic_wrapper_cache:
2585 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2586 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2587 * generic method definition.
2590 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2593 MonoMethod *inst, *def;
2594 MonoGenericContext *ctx;
2596 g_assert (orig_method->is_inflated);
2597 ctx = mono_method_get_context (orig_method);
2600 * Look for the instance
2602 res = mono_marshal_find_in_cache (cache, key);
2607 * Look for the definition
2609 def = mono_marshal_find_in_cache (cache, def_key);
2612 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2613 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2615 mono_memory_barrier ();
2616 mono_marshal_lock ();
2617 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2619 g_hash_table_insert (cache, key, inst);
2622 mono_marshal_unlock ();
2629 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2632 MonoMethod *inst, *res;
2635 * We use the same cache for the generic definition and the instances.
2637 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2638 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2639 mono_memory_barrier ();
2640 mono_marshal_lock ();
2641 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2643 g_hash_table_insert (cache, key, inst);
2646 mono_marshal_unlock ();
2651 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2655 MonoMethod *inst, *def;
2658 * Look for the instance
2660 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2665 * Look for the definition
2667 def = mono_marshal_find_in_cache (cache, def_method->klass);
2669 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2670 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2673 mono_memory_barrier ();
2674 mono_marshal_lock ();
2675 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2677 g_hash_table_insert (cache, orig_method->klass, inst);
2680 mono_marshal_unlock ();
2687 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2690 MonoMethod *inst, *res;
2693 * We use the same cache for the generic definition and the instances.
2695 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2696 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2698 mono_memory_barrier ();
2699 mono_marshal_lock ();
2700 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2702 g_hash_table_insert (cache, orig_method->klass, inst);
2705 mono_marshal_unlock ();
2710 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2712 MonoMethodSignature *sig;
2713 MonoMethodBuilder *mb;
2718 MonoGenericContext *ctx = NULL;
2719 MonoMethod *orig_method = NULL;
2721 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2722 !strcmp (method->name, "BeginInvoke"));
2725 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2727 if (method->is_inflated) {
2728 orig_method = method;
2729 ctx = &((MonoMethodInflated*)method)->context;
2730 method = ((MonoMethodInflated*)method)->declaring;
2733 sig = mono_signature_no_pinvoke (method);
2739 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2740 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2744 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2745 (GHashFunc)mono_signature_hash,
2746 (GCompareFunc)mono_metadata_signature_equal);
2747 if ((res = mono_marshal_find_in_cache (cache, sig)))
2751 g_assert (sig->hasthis);
2753 name = mono_signature_to_name (sig, "begin_invoke");
2755 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2757 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2761 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2763 mono_mb_emit_ldarg (mb, 0);
2764 mono_mb_emit_ldloc (mb, params_var);
2765 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2766 mono_mb_emit_byte (mb, CEE_RET);
2771 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2772 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2774 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2782 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2785 MonoDomain *domain = mono_domain_get ();
2786 MonoAsyncResult *ares;
2787 MonoMethod *method = NULL;
2788 MonoMethodSignature *sig;
2789 MonoMethodMessage *msg;
2790 MonoObject *res, *exc;
2791 MonoArray *out_args;
2794 g_assert (delegate);
2796 if (!delegate->method_info) {
2797 g_assert (delegate->method);
2798 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2799 mono_error_raise_exception (&error); /* FIXME don't raise here */
2800 MONO_OBJECT_SETREF (delegate, method_info, rm);
2803 if (!delegate->method_info || !delegate->method_info->method)
2804 g_assert_not_reached ();
2806 klass = delegate->object.vtable->klass;
2808 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2809 g_assert (method != NULL);
2811 sig = mono_signature_no_pinvoke (method);
2813 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2815 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2817 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."));
2821 if (ares->async_delegate != (MonoObject*)delegate) {
2822 mono_raise_exception (mono_get_exception_invalid_operation (
2823 "The IAsyncResult object provided does not match this delegate."));
2827 #ifndef DISABLE_REMOTING
2828 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2829 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2830 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2831 mono_error_raise_exception (&error); /* FIXME don't raise here */
2832 mono_message_init (domain, msg, delegate->method_info, NULL);
2833 msg->call_type = CallType_EndInvoke;
2834 MONO_OBJECT_SETREF (msg, async_result, ares);
2835 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2839 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2843 if (((MonoException*)exc)->stack_trace) {
2844 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2846 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2848 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2851 mono_raise_exception ((MonoException*)exc);
2854 mono_method_return_message_restore (method, params, out_args);
2861 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2863 MonoType *t = mono_type_get_underlying_type (return_type);
2865 if (return_type->byref)
2866 return_type = &mono_defaults.int_class->byval_arg;
2869 case MONO_TYPE_VOID:
2870 g_assert_not_reached ();
2873 case MONO_TYPE_STRING:
2874 case MONO_TYPE_CLASS:
2875 case MONO_TYPE_OBJECT:
2876 case MONO_TYPE_ARRAY:
2877 case MONO_TYPE_SZARRAY:
2881 case MONO_TYPE_BOOLEAN:
2884 case MONO_TYPE_CHAR:
2894 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2895 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2897 case MONO_TYPE_GENERICINST:
2898 if (!mono_type_generic_inst_is_valuetype (t))
2901 case MONO_TYPE_VALUETYPE: {
2902 MonoClass *klass = mono_class_from_mono_type (return_type);
2903 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2904 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2908 case MONO_TYPE_MVAR: {
2909 MonoClass *klass = mono_class_from_mono_type (return_type);
2910 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2914 g_warning ("type 0x%x not handled", return_type->type);
2915 g_assert_not_reached ();
2918 mono_mb_emit_byte (mb, CEE_RET);
2921 #endif /* DISABLE_JIT */
2924 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2926 MonoMethodSignature *sig;
2927 MonoMethodBuilder *mb;
2932 MonoGenericContext *ctx = NULL;
2933 MonoMethod *orig_method = NULL;
2935 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2936 !strcmp (method->name, "EndInvoke"));
2939 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2941 if (method->is_inflated) {
2942 orig_method = method;
2943 ctx = &((MonoMethodInflated*)method)->context;
2944 method = ((MonoMethodInflated*)method)->declaring;
2947 sig = mono_signature_no_pinvoke (method);
2953 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
2954 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2958 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
2959 (GHashFunc)mono_signature_hash,
2960 (GCompareFunc)mono_metadata_signature_equal);
2961 if ((res = mono_marshal_find_in_cache (cache, sig)))
2965 g_assert (sig->hasthis);
2967 name = mono_signature_to_name (sig, "end_invoke");
2969 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2971 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2975 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2977 mono_mb_emit_ldarg (mb, 0);
2978 mono_mb_emit_ldloc (mb, params_var);
2979 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2981 if (sig->ret->type == MONO_TYPE_VOID) {
2982 mono_mb_emit_byte (mb, CEE_POP);
2983 mono_mb_emit_byte (mb, CEE_RET);
2985 mono_mb_emit_restore_result (mb, sig->ret);
2990 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2991 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2993 res = mono_mb_create_and_cache (cache, sig,
2994 mb, sig, sig->param_count + 16);
3003 MonoMethodSignature *sig;
3005 } SignaturePointerPair;
3008 signature_pointer_pair_hash (gconstpointer data)
3010 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3012 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3016 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3018 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3019 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3023 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3025 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3027 return pair->pointer == user_data;
3031 free_signature_pointer_pair (SignaturePointerPair *pair)
3037 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3039 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3041 MonoMethodBuilder *mb;
3044 gpointer cache_key = NULL;
3045 SignaturePointerPair key;
3046 SignaturePointerPair *new_key;
3047 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3048 int pos0, pos1, pos2;
3050 MonoClass *target_class = NULL;
3051 gboolean closed_over_null = FALSE;
3052 MonoGenericContext *ctx = NULL;
3053 MonoGenericContainer *container = NULL;
3054 MonoMethod *orig_method = NULL;
3056 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3060 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3061 !strcmp (method->name, "Invoke"));
3063 invoke_sig = sig = mono_signature_no_pinvoke (method);
3066 * If the delegate target is null, and the target method is not static, a virtual
3067 * call is made to that method with the first delegate argument as this. This is
3068 * a non-documented .NET feature.
3071 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3072 if (target_method->is_inflated) {
3073 MonoType *target_type;
3075 g_assert (method->signature->hasthis);
3076 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3077 mono_method_get_context (method));
3078 target_class = mono_class_from_mono_type (target_type);
3080 target_class = target_method->klass;
3083 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3086 if (static_method_with_first_arg_bound) {
3087 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3088 g_assert (!callvirt);
3089 invoke_sig = mono_method_signature (target_method);
3093 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3095 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3096 orig_method = method;
3097 ctx = &((MonoMethodInflated*)method)->context;
3098 method = ((MonoMethodInflated*)method)->declaring;
3100 container = mono_method_get_generic_container (method);
3102 container = method->klass->generic_container;
3103 g_assert (container);
3105 invoke_sig = sig = mono_signature_no_pinvoke (method);
3112 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3113 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3116 cache_key = method->klass;
3117 } else if (static_method_with_first_arg_bound) {
3118 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3119 (GHashFunc)mono_signature_hash,
3120 (GCompareFunc)mono_metadata_signature_equal);
3122 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3124 res = mono_marshal_find_in_cache (cache, invoke_sig);
3127 cache_key = invoke_sig;
3128 } else if (callvirt) {
3129 GHashTable **cache_ptr;
3131 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3133 /* We need to cache the signature+method pair */
3134 mono_marshal_lock ();
3136 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3138 key.sig = invoke_sig;
3139 key.pointer = target_method;
3140 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3141 mono_marshal_unlock ();
3145 // Inflated methods should not be in this cache because it's not stored on the imageset.
3146 g_assert (!method->is_inflated);
3147 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3148 (GHashFunc)mono_signature_hash,
3149 (GCompareFunc)mono_metadata_signature_equal);
3150 res = mono_marshal_find_in_cache (cache, sig);
3156 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3157 static_sig->hasthis = 0;
3158 if (!static_method_with_first_arg_bound)
3159 invoke_sig = static_sig;
3161 if (static_method_with_first_arg_bound)
3162 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3163 else if (closed_over_null)
3164 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3166 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3168 name = mono_signature_to_name (invoke_sig, "invoke");
3170 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3172 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3176 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3178 /* allocate local 0 (object) */
3179 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3180 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3181 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3182 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3183 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3186 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3188 g_assert (sig->hasthis);
3191 * {type: sig->ret} res;
3192 * if (delegates == null) {
3193 * return this.<target> ( args .. );
3195 * int i = 0, len = this.delegates.Length;
3197 * res = this.delegates [i].Invoke ( args .. );
3198 * } while (++i < len);
3203 /* this wrapper can be used in unmanaged-managed transitions */
3204 emit_thread_interrupt_checkpoint (mb);
3206 /* delegates = this.delegates */
3207 mono_mb_emit_ldarg (mb, 0);
3208 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3209 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3210 mono_mb_emit_stloc (mb, local_delegates);
3213 /* if (delegates == null) */
3214 mono_mb_emit_ldloc (mb, local_delegates);
3215 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3217 /* return target.<target_method|method_ptr> ( args .. ); */
3219 /* target = d.target; */
3220 mono_mb_emit_ldarg (mb, 0);
3221 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3222 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3223 mono_mb_emit_stloc (mb, local_target);
3225 /*static methods with bound first arg can have null target and still be bound*/
3226 if (!static_method_with_first_arg_bound) {
3227 /* if target != null */
3228 mono_mb_emit_ldloc (mb, local_target);
3229 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3231 /* then call this->method_ptr nonstatic */
3234 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3236 mono_mb_emit_ldloc (mb, local_target);
3237 for (i = 0; i < sig->param_count; ++i)
3238 mono_mb_emit_ldarg (mb, i + 1);
3239 mono_mb_emit_ldarg (mb, 0);
3240 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3241 mono_mb_emit_byte (mb, CEE_LDIND_I);
3242 mono_mb_emit_ldarg (mb, 0);
3243 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3244 mono_mb_emit_byte (mb, CEE_LDIND_I);
3245 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3246 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3247 mono_mb_emit_byte (mb, CEE_RET);
3250 /* else [target == null] call this->method_ptr static */
3251 mono_mb_patch_branch (mb, pos0);
3255 if (!closed_over_null) {
3256 if (target_class->valuetype) {
3257 mono_mb_emit_ldarg (mb, 1);
3258 for (i = 1; i < sig->param_count; ++i)
3259 mono_mb_emit_ldarg (mb, i + 1);
3260 mono_mb_emit_op (mb, CEE_CALL, target_method);
3262 mono_mb_emit_ldarg (mb, 1);
3263 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3264 for (i = 1; i < sig->param_count; ++i)
3265 mono_mb_emit_ldarg (mb, i + 1);
3266 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3269 mono_mb_emit_byte (mb, CEE_LDNULL);
3270 for (i = 0; i < sig->param_count; ++i)
3271 mono_mb_emit_ldarg (mb, i + 1);
3272 mono_mb_emit_op (mb, CEE_CALL, target_method);
3275 if (static_method_with_first_arg_bound) {
3276 mono_mb_emit_ldloc (mb, local_target);
3277 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3278 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3280 for (i = 0; i < sig->param_count; ++i)
3281 mono_mb_emit_ldarg (mb, i + 1);
3282 mono_mb_emit_ldarg (mb, 0);
3283 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3284 mono_mb_emit_byte (mb, CEE_LDIND_I);
3285 mono_mb_emit_ldarg (mb, 0);
3286 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3287 mono_mb_emit_byte (mb, CEE_LDIND_I);
3288 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3289 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3292 mono_mb_emit_byte (mb, CEE_RET);
3294 /* else [delegates != null] */
3295 mono_mb_patch_branch (mb, pos2);
3297 /* len = delegates.Length; */
3298 mono_mb_emit_ldloc (mb, local_delegates);
3299 mono_mb_emit_byte (mb, CEE_LDLEN);
3300 mono_mb_emit_byte (mb, CEE_CONV_I4);
3301 mono_mb_emit_stloc (mb, local_len);
3304 mono_mb_emit_icon (mb, 0);
3305 mono_mb_emit_stloc (mb, local_i);
3307 pos1 = mono_mb_get_label (mb);
3309 /* d = delegates [i]; */
3310 mono_mb_emit_ldloc (mb, local_delegates);
3311 mono_mb_emit_ldloc (mb, local_i);
3312 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3313 mono_mb_emit_stloc (mb, local_d);
3315 /* res = d.Invoke ( args .. ); */
3316 mono_mb_emit_ldloc (mb, local_d);
3317 for (i = 0; i < sig->param_count; i++)
3318 mono_mb_emit_ldarg (mb, i + 1);
3320 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3323 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3324 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3327 mono_mb_emit_stloc (mb, local_res);
3330 mono_mb_emit_add_to_local (mb, local_i, 1);
3333 mono_mb_emit_ldloc (mb, local_i);
3334 mono_mb_emit_ldloc (mb, local_len);
3335 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3339 mono_mb_emit_ldloc (mb, local_res);
3340 mono_mb_emit_byte (mb, CEE_RET);
3342 mb->skip_visibility = 1;
3343 #endif /* DISABLE_JIT */
3345 info = mono_wrapper_info_create (mb, subtype);
3350 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3351 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3352 } else if (callvirt) {
3353 new_key = g_new0 (SignaturePointerPair, 1);
3356 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3360 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3364 /* mono_method_print_code (res); */
3370 * the returned method invokes all methods in a multicast delegate.
3373 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3375 gboolean callvirt = FALSE;
3376 gboolean static_method_with_first_arg_bound = FALSE;
3377 MonoMethod *target_method = NULL;
3378 MonoMethodSignature *sig;
3380 sig = mono_signature_no_pinvoke (method);
3382 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3384 target_method = del->method;
3387 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3388 static_method_with_first_arg_bound = TRUE;
3389 target_method = del->method;
3392 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3396 MonoMethodSignature *ctor_sig;
3397 MonoMethodSignature *sig;
3400 /* protected by the marshal lock, contains CtorSigPair pointers */
3401 static GSList *strsig_list = NULL;
3403 static MonoMethodSignature *
3404 lookup_string_ctor_signature (MonoMethodSignature *sig)
3406 MonoMethodSignature *callsig;
3410 mono_marshal_lock ();
3412 for (item = strsig_list; item; item = item->next) {
3413 cs = (CtorSigPair *)item->data;
3414 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3415 * because it is lock-free.
3417 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3422 mono_marshal_unlock ();
3426 static MonoMethodSignature *
3427 add_string_ctor_signature (MonoMethod *method)
3429 MonoMethodSignature *callsig;
3432 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3433 callsig->ret = &mono_defaults.string_class->byval_arg;
3434 cs = g_new (CtorSigPair, 1);
3436 cs->ctor_sig = mono_method_signature (method);
3438 mono_marshal_lock ();
3439 strsig_list = g_slist_prepend (strsig_list, cs);
3440 mono_marshal_unlock ();
3445 * mono_marshal_get_string_ctor_signature:
3447 * Return the modified signature used by string ctors (they return the newly created
3450 MonoMethodSignature*
3451 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3453 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3455 sig = add_string_ctor_signature (method);
3461 get_runtime_invoke_type (MonoType *t, gboolean ret)
3464 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3466 /* Can't share this with 'I' as that needs another indirection */
3467 return &mono_defaults.int_class->this_arg;
3470 if (MONO_TYPE_IS_REFERENCE (t))
3471 return &mono_defaults.object_class->byval_arg;
3474 /* The result needs to be boxed */
3479 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3482 return &mono_defaults.sbyte_class->byval_arg;
3484 return &mono_defaults.int16_class->byval_arg;
3486 return &mono_defaults.int32_class->byval_arg;
3489 return &mono_defaults.int64_class->byval_arg;
3490 case MONO_TYPE_BOOLEAN:
3491 return &mono_defaults.byte_class->byval_arg;
3492 case MONO_TYPE_CHAR:
3493 return &mono_defaults.uint16_class->byval_arg;
3495 return &mono_defaults.int_class->byval_arg;
3496 case MONO_TYPE_VALUETYPE:
3497 if (t->data.klass->enumtype) {
3498 t = mono_class_enum_basetype (t->data.klass);
3508 * mono_marshal_get_runtime_invoke_sig:
3510 * Return a common signature used for sharing runtime invoke wrappers.
3512 static MonoMethodSignature*
3513 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3515 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3518 res->generic_param_count = 0;
3519 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3520 for (i = 0; i < res->param_count; ++i)
3521 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3527 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3529 /* Can't share wrappers which return a vtype since it needs to be boxed */
3530 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))
3533 return mono_metadata_signature_equal (sig1, sig2);
3541 * Emit the call to the wrapper method from a runtime invoke wrapper.
3544 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3545 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3547 gboolean virtual_, gboolean need_direct_wrapper)
3549 static MonoString *string_dummy = NULL;
3551 int *tmp_nullable_locals;
3552 gboolean void_ret = FALSE;
3553 gboolean string_ctor = method && method->string_ctor;
3555 /* to make it work with our special string constructors */
3556 if (!string_dummy) {
3557 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3558 string_dummy = mono_string_new_wrapper ("dummy");
3562 g_assert (sig->hasthis);
3563 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3568 if (mono_gc_is_moving ()) {
3569 mono_mb_emit_ptr (mb, &string_dummy);
3570 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3572 mono_mb_emit_ptr (mb, string_dummy);
3575 mono_mb_emit_ldarg (mb, 0);
3579 tmp_nullable_locals = g_new0 (int, sig->param_count);
3581 for (i = 0; i < sig->param_count; i++) {
3582 MonoType *t = sig->params [i];
3585 mono_mb_emit_ldarg (mb, 1);
3587 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3588 mono_mb_emit_byte (mb, CEE_ADD);
3592 mono_mb_emit_byte (mb, CEE_LDIND_I);
3593 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3594 * So to make this work we unbox it to a local variablee and push a reference to that.
3596 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3597 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3599 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3600 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3601 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3606 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3607 type = sig->params [i]->type;
3611 case MONO_TYPE_BOOLEAN:
3615 case MONO_TYPE_CHAR:
3624 mono_mb_emit_byte (mb, CEE_LDIND_I);
3625 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3627 case MONO_TYPE_STRING:
3628 case MONO_TYPE_CLASS:
3629 case MONO_TYPE_ARRAY:
3631 case MONO_TYPE_SZARRAY:
3632 case MONO_TYPE_OBJECT:
3633 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3635 case MONO_TYPE_GENERICINST:
3636 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3637 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3642 case MONO_TYPE_VALUETYPE:
3643 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3644 type = mono_class_enum_basetype (t->data.klass)->type;
3647 mono_mb_emit_byte (mb, CEE_LDIND_I);
3648 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3649 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3650 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3651 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3653 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3657 g_assert_not_reached ();
3662 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3663 } else if (need_direct_wrapper) {
3664 mono_mb_emit_op (mb, CEE_CALL, method);
3666 mono_mb_emit_ldarg (mb, 3);
3667 mono_mb_emit_calli (mb, callsig);
3670 if (sig->ret->byref) {
3672 g_assert_not_reached ();
3675 switch (sig->ret->type) {
3676 case MONO_TYPE_VOID:
3680 case MONO_TYPE_BOOLEAN:
3681 case MONO_TYPE_CHAR:
3694 case MONO_TYPE_VALUETYPE:
3695 case MONO_TYPE_TYPEDBYREF:
3696 case MONO_TYPE_GENERICINST:
3697 /* box value types */
3698 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3700 case MONO_TYPE_STRING:
3701 case MONO_TYPE_CLASS:
3702 case MONO_TYPE_ARRAY:
3703 case MONO_TYPE_SZARRAY:
3704 case MONO_TYPE_OBJECT:
3708 /* The result is an IntPtr */
3709 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3712 g_assert_not_reached ();
3716 mono_mb_emit_stloc (mb, loc_res);
3718 /* Convert back nullable-byref arguments */
3719 for (i = 0; i < sig->param_count; i++) {
3720 MonoType *t = sig->params [i];
3723 * Box the result and put it back into the array, the caller will have
3724 * to obtain it from there.
3726 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3727 mono_mb_emit_ldarg (mb, 1);
3728 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3729 mono_mb_emit_byte (mb, CEE_ADD);
3731 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3732 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3734 mono_mb_emit_byte (mb, CEE_STIND_REF);
3738 g_free (tmp_nullable_locals);
3742 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3743 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3744 gboolean virtual_, gboolean need_direct_wrapper)
3747 MonoExceptionClause *clause;
3748 int loc_res, loc_exc;
3750 /* The wrapper looks like this:
3756 * } catch (Exception e) {
3764 /* allocate local 0 (object) tmp */
3765 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3766 /* allocate local 1 (object) exc */
3767 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3769 /* *exc is assumed to be initialized to NULL by the caller */
3771 mono_mb_emit_byte (mb, CEE_LDARG_2);
3772 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3777 labels [1] = mono_mb_get_label (mb);
3778 emit_thread_force_interrupt_checkpoint (mb);
3779 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3781 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3783 /* Add a try clause around the call */
3784 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3785 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3786 clause->data.catch_class = mono_defaults.exception_class;
3787 clause->try_offset = labels [1];
3788 clause->try_len = mono_mb_get_label (mb) - labels [1];
3790 clause->handler_offset = mono_mb_get_label (mb);
3793 mono_mb_emit_stloc (mb, loc_exc);
3794 mono_mb_emit_byte (mb, CEE_LDARG_2);
3795 mono_mb_emit_ldloc (mb, loc_exc);
3796 mono_mb_emit_byte (mb, CEE_STIND_REF);
3798 mono_mb_emit_branch (mb, CEE_LEAVE);
3800 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3802 mono_mb_set_clauses (mb, 1, clause);
3804 mono_mb_patch_branch (mb, labels [2]);
3805 mono_mb_emit_ldloc (mb, loc_res);
3806 mono_mb_emit_byte (mb, CEE_RET);
3811 mono_mb_patch_branch (mb, labels [0]);
3812 emit_thread_force_interrupt_checkpoint (mb);
3813 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3815 mono_mb_emit_ldloc (mb, 0);
3816 mono_mb_emit_byte (mb, CEE_RET);
3821 * generates IL code for the runtime invoke function
3822 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3824 * we also catch exceptions if exc != null
3825 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3826 * it means that the compiled code for METHOD does not have to be looked up
3827 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3828 * its METHOD argument.
3831 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3833 MonoMethodSignature *sig, *csig, *callsig;
3834 MonoMethodBuilder *mb;
3835 GHashTable *cache = NULL;
3836 MonoClass *target_klass;
3837 MonoMethod *res = NULL;
3838 static MonoMethodSignature *cctor_signature = NULL;
3839 static MonoMethodSignature *finalize_signature = NULL;
3841 const char *param_names [16];
3842 gboolean need_direct_wrapper = FALSE;
3847 if (!cctor_signature) {
3848 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3849 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3851 if (!finalize_signature) {
3852 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3853 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3854 finalize_signature->hasthis = 1;
3858 need_direct_wrapper = TRUE;
3861 * Use a separate cache indexed by methods to speed things up and to avoid the
3862 * boundless mempool growth caused by the signature_dup stuff below.
3865 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3867 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3869 res = mono_marshal_find_in_cache (cache, method);
3873 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3874 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3876 * Array Get/Set/Address methods. The JIT implements them using inline code
3877 * so we need to create an invoke wrapper which calls the method directly.
3879 need_direct_wrapper = TRUE;
3882 if (method->string_ctor) {
3883 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3885 callsig = add_string_ctor_signature (method);
3886 /* Can't share this as we push a string as this */
3887 need_direct_wrapper = TRUE;
3889 if (method_is_dynamic (method))
3890 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3892 callsig = mono_method_signature (method);
3895 sig = mono_method_signature (method);
3897 target_klass = get_wrapper_target_class (method->klass->image);
3899 /* Try to share wrappers for non-corlib methods with simple signatures */
3900 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3901 callsig = cctor_signature;
3902 target_klass = mono_defaults.object_class;
3903 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3904 callsig = finalize_signature;
3905 target_klass = mono_defaults.object_class;
3908 if (need_direct_wrapper) {
3909 /* Already searched at the start */
3911 MonoMethodSignature *tmp_sig;
3913 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3914 GHashTable **cache_table = NULL;
3916 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3917 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
3919 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
3921 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
3922 (GCompareFunc)runtime_invoke_signature_equal);
3924 /* from mono_marshal_find_in_cache */
3925 mono_marshal_lock ();
3926 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
3927 mono_marshal_unlock ();
3934 /* Make a copy of the signature from the image mempool */
3936 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3940 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3942 csig->ret = &mono_defaults.object_class->byval_arg;
3943 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3944 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3946 csig->params [0] = &mono_defaults.object_class->byval_arg;
3947 csig->params [1] = &mono_defaults.int_class->byval_arg;
3948 csig->params [2] = &mono_defaults.int_class->byval_arg;
3949 csig->params [3] = &mono_defaults.int_class->byval_arg;
3952 /* This is called from runtime code so it has to be cdecl */
3953 csig->call_convention = MONO_CALL_C;
3956 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
3957 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3961 param_names [0] = "this";
3962 param_names [1] = "params";
3963 param_names [2] = "exc";
3964 param_names [3] = "method";
3965 mono_mb_set_param_names (mb, param_names);
3967 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
3970 if (need_direct_wrapper) {
3972 mb->skip_visibility = 1;
3974 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
3975 info->d.runtime_invoke.method = method;
3976 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
3978 /* taken from mono_mb_create_and_cache */
3979 mono_marshal_lock ();
3980 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
3981 mono_marshal_unlock ();
3983 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
3984 info->d.runtime_invoke.sig = callsig;
3986 /* Somebody may have created it before us */
3989 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
3991 mono_marshal_lock ();
3992 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
3994 GHashTable *direct_cache;
3996 g_hash_table_insert (cache, callsig, res);
3997 /* Can't insert it into wrapper_hash since the key is a signature */
3998 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4000 g_hash_table_insert (direct_cache, method, res);
4002 mono_free_method (newm);
4004 mono_marshal_unlock ();
4007 /* end mono_mb_create_and_cache */
4016 * mono_marshal_get_runtime_invoke_dynamic:
4018 * Return a method which can be used to invoke managed methods from native code
4020 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4021 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4022 * ARGS should point to an architecture specific structure containing
4023 * the arguments and space for the return value.
4024 * The other arguments are the same as for runtime_invoke (), except that
4025 * ARGS should contain the this argument too.
4026 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4027 * is only one copy of it, which is useful in full-aot.
4028 * The wrapper info for the wrapper is a WrapperInfo structure.
4031 mono_marshal_get_runtime_invoke_dynamic (void)
4033 static MonoMethod *method;
4034 MonoMethodSignature *csig;
4035 MonoExceptionClause *clause;
4036 MonoMethodBuilder *mb;
4044 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4046 csig->ret = &mono_defaults.void_class->byval_arg;
4047 csig->params [0] = &mono_defaults.int_class->byval_arg;
4048 csig->params [1] = &mono_defaults.int_class->byval_arg;
4049 csig->params [2] = &mono_defaults.int_class->byval_arg;
4050 csig->params [3] = &mono_defaults.int_class->byval_arg;
4052 name = g_strdup ("runtime_invoke_dynamic");
4053 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4057 /* allocate local 0 (object) tmp */
4058 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4059 /* allocate local 1 (object) exc */
4060 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4062 /* cond set *exc to null */
4063 mono_mb_emit_byte (mb, CEE_LDARG_1);
4064 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4065 mono_mb_emit_byte (mb, 3);
4066 mono_mb_emit_byte (mb, CEE_LDARG_1);
4067 mono_mb_emit_byte (mb, CEE_LDNULL);
4068 mono_mb_emit_byte (mb, CEE_STIND_REF);
4070 emit_thread_force_interrupt_checkpoint (mb);
4072 mono_mb_emit_byte (mb, CEE_LDARG_0);
4073 mono_mb_emit_byte (mb, CEE_LDARG_2);
4074 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4075 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4077 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4079 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4080 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4081 clause->try_len = mono_mb_get_label (mb);
4084 clause->data.filter_offset = mono_mb_get_label (mb);
4086 mono_mb_emit_byte (mb, CEE_POP);
4087 mono_mb_emit_byte (mb, CEE_LDARG_1);
4088 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4089 mono_mb_emit_byte (mb, CEE_PREFIX1);
4090 mono_mb_emit_byte (mb, CEE_CGT_UN);
4091 mono_mb_emit_byte (mb, CEE_PREFIX1);
4092 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4094 clause->handler_offset = mono_mb_get_label (mb);
4097 /* store exception */
4098 mono_mb_emit_stloc (mb, 1);
4100 mono_mb_emit_byte (mb, CEE_LDARG_1);
4101 mono_mb_emit_ldloc (mb, 1);
4102 mono_mb_emit_byte (mb, CEE_STIND_REF);
4104 mono_mb_emit_byte (mb, CEE_LDNULL);
4105 mono_mb_emit_stloc (mb, 0);
4107 /* Check for the abort exception */
4108 mono_mb_emit_ldloc (mb, 1);
4109 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4110 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4112 /* Delay the abort exception */
4113 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4115 mono_mb_patch_short_branch (mb, posna);
4116 mono_mb_emit_branch (mb, CEE_LEAVE);
4118 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4120 mono_mb_set_clauses (mb, 1, clause);
4123 mono_mb_patch_branch (mb, pos);
4124 //mono_mb_emit_ldloc (mb, 0);
4125 mono_mb_emit_byte (mb, CEE_RET);
4126 #endif /* DISABLE_JIT */
4128 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4130 mono_marshal_lock ();
4131 /* double-checked locking */
4133 method = mono_mb_create (mb, csig, 16, info);
4135 mono_marshal_unlock ();
4143 * mono_marshal_get_runtime_invoke_for_sig:
4145 * Return a runtime invoke wrapper for a given signature.
4148 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4150 MonoMethodSignature *csig, *callsig;
4151 MonoMethodBuilder *mb;
4153 GHashTable *cache = NULL;
4154 GHashTable **cache_table = NULL;
4155 MonoMethod *res = NULL;
4157 const char *param_names [16];
4160 /* A simplified version of mono_marshal_get_runtime_invoke */
4162 image = mono_defaults.corlib;
4164 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4166 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4168 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4169 (GCompareFunc)runtime_invoke_signature_equal);
4171 /* from mono_marshal_find_in_cache */
4172 mono_marshal_lock ();
4173 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4174 mono_marshal_unlock ();
4181 /* Make a copy of the signature from the image mempool */
4182 callsig = mono_metadata_signature_dup_full (image, callsig);
4184 csig = mono_metadata_signature_alloc (image, 4);
4185 csig->ret = &mono_defaults.object_class->byval_arg;
4186 csig->params [0] = &mono_defaults.object_class->byval_arg;
4187 csig->params [1] = &mono_defaults.int_class->byval_arg;
4188 csig->params [2] = &mono_defaults.int_class->byval_arg;
4189 csig->params [3] = &mono_defaults.int_class->byval_arg;
4192 /* This is called from runtime code so it has to be cdecl */
4193 csig->call_convention = MONO_CALL_C;
4196 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4197 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4201 param_names [0] = "this";
4202 param_names [1] = "params";
4203 param_names [2] = "exc";
4204 param_names [3] = "method";
4205 mono_mb_set_param_names (mb, param_names);
4207 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4210 /* taken from mono_mb_create_and_cache */
4211 mono_marshal_lock ();
4212 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4213 mono_marshal_unlock ();
4215 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4216 info->d.runtime_invoke.sig = callsig;
4218 /* Somebody may have created it before us */
4221 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4223 mono_marshal_lock ();
4224 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4227 g_hash_table_insert (cache, callsig, res);
4229 mono_free_method (newm);
4231 mono_marshal_unlock ();
4234 /* end mono_mb_create_and_cache */
4243 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4245 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4246 klass->name_space, klass->name);
4248 mono_mb_emit_exception_marshal_directive (mb, msg);
4253 * generates IL code for the icall wrapper (the generated method
4254 * calls the unmanaged code in func)
4255 * The wrapper info for the wrapper is a WrapperInfo structure.
4258 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4260 MonoMethodSignature *csig, *csig2;
4261 MonoMethodBuilder *mb;
4266 g_assert (sig->pinvoke);
4268 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4270 mb->method->save_lmf = 1;
4272 /* Add an explicit this argument */
4274 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4276 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4280 mono_mb_emit_byte (mb, CEE_LDARG_0);
4282 for (i = 0; i < sig->param_count; i++)
4283 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4285 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4286 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4287 mono_mb_emit_calli (mb, csig2);
4288 if (check_exceptions)
4289 emit_thread_interrupt_checkpoint (mb);
4290 mono_mb_emit_byte (mb, CEE_RET);
4293 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4295 if (csig->call_convention == MONO_CALL_VARARG)
4296 csig->call_convention = 0;
4298 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4299 info->d.icall.func = (gpointer)func;
4300 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4307 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4308 MonoMarshalSpec *spec,
4309 int conv_arg, MonoType **conv_arg_type,
4310 MarshalAction action)
4313 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4314 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4319 static MonoClass *ICustomMarshaler = NULL;
4320 static MonoMethod *cleanup_native, *cleanup_managed;
4321 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4322 MonoMethod *get_instance = NULL;
4323 MonoMethodBuilder *mb = m->mb;
4324 char *exception_msg = NULL;
4328 if (!ICustomMarshaler) {
4329 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4331 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4332 goto handle_exception;
4335 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4336 g_assert (cleanup_native);
4337 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4338 g_assert (cleanup_managed);
4339 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4340 g_assert (marshal_managed_to_native);
4341 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4342 g_assert (marshal_native_to_managed);
4344 mono_memory_barrier ();
4345 ICustomMarshaler = klass;
4348 if (spec->data.custom_data.image)
4349 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4351 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4352 g_assert (mtype != NULL);
4353 mklass = mono_class_from_mono_type (mtype);
4354 g_assert (mklass != NULL);
4356 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4357 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4359 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4361 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4362 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4363 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4364 (get_sig->params [0]->type != MONO_TYPE_STRING))
4365 get_instance = NULL;
4369 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);
4372 /* Throw exception and emit compensation code if neccesary */
4373 if (exception_msg) {
4375 case MARSHAL_ACTION_CONV_IN:
4376 case MARSHAL_ACTION_CONV_RESULT:
4377 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4378 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4379 mono_mb_emit_byte (mb, CEE_POP);
4381 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4382 g_free (exception_msg);
4385 case MARSHAL_ACTION_PUSH:
4386 mono_mb_emit_byte (mb, CEE_LDNULL);
4394 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4395 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4398 case MARSHAL_ACTION_CONV_IN:
4400 case MONO_TYPE_CLASS:
4401 case MONO_TYPE_OBJECT:
4402 case MONO_TYPE_STRING:
4403 case MONO_TYPE_ARRAY:
4404 case MONO_TYPE_SZARRAY:
4405 case MONO_TYPE_VALUETYPE:
4409 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4410 g_assert_not_reached ();
4414 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4416 mono_mb_emit_byte (mb, CEE_LDNULL);
4417 mono_mb_emit_stloc (mb, conv_arg);
4419 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4422 /* Minic MS.NET behavior */
4423 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4426 /* Check for null */
4427 mono_mb_emit_ldarg (mb, argnum);
4429 mono_mb_emit_byte (mb, CEE_LDIND_I);
4430 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4432 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4434 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4436 mono_mb_emit_ldarg (mb, argnum);
4438 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4440 if (t->type == MONO_TYPE_VALUETYPE) {
4442 * Since we can't determine the type of the argument, we
4443 * will assume the unmanaged function takes a pointer.
4445 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4447 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4450 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4451 mono_mb_emit_stloc (mb, conv_arg);
4453 mono_mb_patch_branch (mb, pos2);
4456 case MARSHAL_ACTION_CONV_OUT:
4457 /* Check for null */
4458 mono_mb_emit_ldloc (mb, conv_arg);
4459 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4462 mono_mb_emit_ldarg (mb, argnum);
4464 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4466 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4468 mono_mb_emit_ldloc (mb, conv_arg);
4469 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4470 mono_mb_emit_byte (mb, CEE_STIND_REF);
4471 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4472 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4474 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4476 mono_mb_emit_ldloc (mb, conv_arg);
4477 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4479 /* We have nowhere to store the result */
4480 mono_mb_emit_byte (mb, CEE_POP);
4483 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4485 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4487 mono_mb_emit_ldloc (mb, conv_arg);
4489 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4491 mono_mb_patch_branch (mb, pos2);
4494 case MARSHAL_ACTION_PUSH:
4496 mono_mb_emit_ldloc_addr (mb, conv_arg);
4498 mono_mb_emit_ldloc (mb, conv_arg);
4501 case MARSHAL_ACTION_CONV_RESULT:
4502 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4504 mono_mb_emit_stloc (mb, 3);
4506 mono_mb_emit_ldloc (mb, 3);
4507 mono_mb_emit_stloc (mb, loc1);
4509 /* Check for null */
4510 mono_mb_emit_ldloc (mb, 3);
4511 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4513 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4515 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4516 mono_mb_emit_byte (mb, CEE_DUP);
4518 mono_mb_emit_ldloc (mb, 3);
4519 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4520 mono_mb_emit_stloc (mb, 3);
4522 mono_mb_emit_ldloc (mb, loc1);
4523 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4525 mono_mb_patch_branch (mb, pos2);
4528 case MARSHAL_ACTION_MANAGED_CONV_IN:
4529 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4531 mono_mb_emit_byte (mb, CEE_LDNULL);
4532 mono_mb_emit_stloc (mb, conv_arg);
4534 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4537 /* Check for null */
4538 mono_mb_emit_ldarg (mb, argnum);
4540 mono_mb_emit_byte (mb, CEE_LDIND_I);
4541 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4543 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4544 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4546 mono_mb_emit_ldarg (mb, argnum);
4548 mono_mb_emit_byte (mb, CEE_LDIND_I);
4550 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4551 mono_mb_emit_stloc (mb, conv_arg);
4553 mono_mb_patch_branch (mb, pos2);
4556 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4557 g_assert (!t->byref);
4559 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4561 mono_mb_emit_stloc (mb, 3);
4563 mono_mb_emit_ldloc (mb, 3);
4564 mono_mb_emit_stloc (mb, loc1);
4566 /* Check for null */
4567 mono_mb_emit_ldloc (mb, 3);
4568 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4570 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4571 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4572 mono_mb_emit_byte (mb, CEE_DUP);
4574 mono_mb_emit_ldloc (mb, 3);
4575 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4576 mono_mb_emit_stloc (mb, 3);
4578 mono_mb_emit_ldloc (mb, loc1);
4579 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4581 mono_mb_patch_branch (mb, pos2);
4584 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4586 /* Check for null */
4587 mono_mb_emit_ldloc (mb, conv_arg);
4588 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4591 mono_mb_emit_ldarg (mb, argnum);
4593 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4595 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4597 mono_mb_emit_ldloc (mb, conv_arg);
4598 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4599 mono_mb_emit_byte (mb, CEE_STIND_I);
4602 /* Call CleanUpManagedData */
4603 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4605 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4607 mono_mb_emit_ldloc (mb, conv_arg);
4608 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4610 mono_mb_patch_branch (mb, pos2);
4614 g_assert_not_reached ();
4622 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4623 MonoMarshalSpec *spec,
4624 int conv_arg, MonoType **conv_arg_type,
4625 MarshalAction action)
4628 MonoMethodBuilder *mb = m->mb;
4631 case MARSHAL_ACTION_CONV_IN: {
4632 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4634 g_assert (t->type == MONO_TYPE_OBJECT);
4635 g_assert (!t->byref);
4637 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4638 mono_mb_emit_ldarg (mb, argnum);
4639 mono_mb_emit_icon (mb, encoding);
4640 mono_mb_emit_icon (mb, t->attrs);
4641 mono_mb_emit_icall (mb, mono_marshal_asany);
4642 mono_mb_emit_stloc (mb, conv_arg);
4646 case MARSHAL_ACTION_PUSH:
4647 mono_mb_emit_ldloc (mb, conv_arg);
4650 case MARSHAL_ACTION_CONV_OUT: {
4651 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4653 mono_mb_emit_ldarg (mb, argnum);
4654 mono_mb_emit_ldloc (mb, conv_arg);
4655 mono_mb_emit_icon (mb, encoding);
4656 mono_mb_emit_icon (mb, t->attrs);
4657 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4662 g_assert_not_reached ();
4669 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4670 MonoMarshalSpec *spec,
4671 int conv_arg, MonoType **conv_arg_type,
4672 MarshalAction action)
4675 MonoMethodBuilder *mb = m->mb;
4676 MonoClass *klass, *date_time_class;
4679 klass = mono_class_from_mono_type (t);
4681 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
4684 case MARSHAL_ACTION_CONV_IN:
4685 if (klass == date_time_class) {
4686 /* Convert it to an OLE DATE type */
4687 static MonoMethod *to_oadate;
4690 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4691 g_assert (to_oadate);
4693 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4696 mono_mb_emit_ldarg (mb, argnum);
4697 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4700 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4702 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4704 mono_mb_emit_ldarg_addr (mb, argnum);
4705 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4706 mono_mb_emit_stloc (mb, conv_arg);
4710 mono_mb_patch_branch (mb, pos);
4714 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4715 klass->blittable || klass->enumtype)
4718 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4720 /* store the address of the source into local variable 0 */
4722 mono_mb_emit_ldarg (mb, argnum);
4724 mono_mb_emit_ldarg_addr (mb, argnum);
4726 mono_mb_emit_stloc (mb, 0);
4728 /* allocate space for the native struct and
4729 * store the address into local variable 1 (dest) */
4730 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4731 mono_mb_emit_byte (mb, CEE_PREFIX1);
4732 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4733 mono_mb_emit_stloc (mb, conv_arg);
4736 mono_mb_emit_ldloc (mb, 0);
4737 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4740 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4742 mono_mb_emit_ldloc (mb, conv_arg);
4743 mono_mb_emit_stloc (mb, 1);
4745 /* emit valuetype conversion code */
4746 emit_struct_conv (mb, klass, FALSE);
4750 mono_mb_patch_branch (mb, pos);
4753 case MARSHAL_ACTION_PUSH:
4754 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4756 g_assert (!t->byref);
4758 /* Have to change the signature since the vtype is passed byref */
4759 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4761 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4762 klass->blittable || klass->enumtype)
4763 mono_mb_emit_ldarg_addr (mb, argnum);
4765 mono_mb_emit_ldloc (mb, conv_arg);
4769 if (klass == date_time_class) {
4771 mono_mb_emit_ldloc_addr (mb, conv_arg);
4773 mono_mb_emit_ldloc (mb, conv_arg);
4777 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4778 klass->blittable || klass->enumtype) {
4779 mono_mb_emit_ldarg (mb, argnum);
4782 mono_mb_emit_ldloc (mb, conv_arg);
4784 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4785 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4789 case MARSHAL_ACTION_CONV_OUT:
4790 if (klass == date_time_class) {
4791 /* Convert from an OLE DATE type */
4792 static MonoMethod *from_oadate;
4797 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4799 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4800 g_assert (from_oadate);
4802 mono_mb_emit_ldarg (mb, argnum);
4803 mono_mb_emit_ldloc (mb, conv_arg);
4804 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4805 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4810 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4811 klass->blittable || klass->enumtype)
4815 /* dst = argument */
4816 mono_mb_emit_ldarg (mb, argnum);
4817 mono_mb_emit_stloc (mb, 1);
4819 mono_mb_emit_ldloc (mb, 1);
4820 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4822 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4823 /* src = tmp_locals [i] */
4824 mono_mb_emit_ldloc (mb, conv_arg);
4825 mono_mb_emit_stloc (mb, 0);
4827 /* emit valuetype conversion code */
4828 emit_struct_conv (mb, klass, TRUE);
4832 emit_struct_free (mb, klass, conv_arg);
4835 mono_mb_patch_branch (mb, pos);
4838 case MARSHAL_ACTION_CONV_RESULT:
4839 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4841 mono_mb_emit_stloc (mb, 3);
4845 /* load pointer to returned value type */
4846 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4847 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4848 /* store the address of the source into local variable 0 */
4849 mono_mb_emit_stloc (mb, 0);
4851 mono_mb_emit_ldloc_addr (mb, 3);
4852 mono_mb_emit_stloc (mb, 1);
4854 /* emit valuetype conversion code */
4855 emit_struct_conv (mb, klass, TRUE);
4858 case MARSHAL_ACTION_MANAGED_CONV_IN:
4859 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4860 klass->blittable || klass->enumtype) {
4865 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4867 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4871 mono_mb_emit_ldarg (mb, argnum);
4873 mono_mb_emit_ldarg_addr (mb, argnum);
4874 mono_mb_emit_stloc (mb, 0);
4877 mono_mb_emit_ldloc (mb, 0);
4878 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4881 mono_mb_emit_ldloc_addr (mb, conv_arg);
4882 mono_mb_emit_stloc (mb, 1);
4884 /* emit valuetype conversion code */
4885 emit_struct_conv (mb, klass, TRUE);
4888 mono_mb_patch_branch (mb, pos);
4891 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4892 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4893 klass->blittable || klass->enumtype) {
4897 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4900 /* Check for null */
4901 mono_mb_emit_ldarg (mb, argnum);
4902 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4905 mono_mb_emit_ldloc_addr (mb, conv_arg);
4906 mono_mb_emit_stloc (mb, 0);
4909 mono_mb_emit_ldarg (mb, argnum);
4910 mono_mb_emit_stloc (mb, 1);
4912 /* emit valuetype conversion code */
4913 emit_struct_conv (mb, klass, FALSE);
4915 mono_mb_patch_branch (mb, pos2);
4918 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4919 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4920 klass->blittable || klass->enumtype) {
4921 mono_mb_emit_stloc (mb, 3);
4926 /* load pointer to returned value type */
4927 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4928 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4930 /* store the address of the source into local variable 0 */
4931 mono_mb_emit_stloc (mb, 0);
4932 /* allocate space for the native struct and
4933 * store the address into dst_ptr */
4934 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4935 m->retobj_class = klass;
4936 g_assert (m->retobj_var);
4937 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4938 mono_mb_emit_byte (mb, CEE_CONV_I);
4939 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
4940 mono_mb_emit_stloc (mb, 1);
4941 mono_mb_emit_ldloc (mb, 1);
4942 mono_mb_emit_stloc (mb, m->retobj_var);
4944 /* emit valuetype conversion code */
4945 emit_struct_conv (mb, klass, FALSE);
4949 g_assert_not_reached ();
4956 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4957 MonoMarshalSpec *spec,
4958 int conv_arg, MonoType **conv_arg_type,
4959 MarshalAction action)
4963 case MARSHAL_ACTION_CONV_IN:
4964 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4966 case MARSHAL_ACTION_MANAGED_CONV_IN:
4967 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4971 MonoMethodBuilder *mb = m->mb;
4972 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4973 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4977 case MARSHAL_ACTION_CONV_IN:
4978 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4979 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4982 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4985 mono_mb_emit_ldarg (mb, argnum);
4986 mono_mb_emit_byte (mb, CEE_LDIND_I);
4988 mono_mb_emit_ldarg (mb, argnum);
4992 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4993 mono_mb_emit_exception_marshal_directive (mb, msg);
4995 mono_mb_emit_icall (mb, conv_to_icall (conv));
4997 mono_mb_emit_stloc (mb, conv_arg);
5001 case MARSHAL_ACTION_CONV_OUT:
5002 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5004 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5005 mono_mb_emit_exception_marshal_directive (mb, msg);
5009 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5010 static MonoMethod *m;
5013 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5018 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5019 mono_mb_emit_exception_marshal_directive (mb, msg);
5024 * Have to allocate a new string with the same length as the original, and
5025 * copy the contents of the buffer pointed to by CONV_ARG into it.
5027 g_assert (t->byref);
5028 mono_mb_emit_ldarg (mb, argnum);
5029 mono_mb_emit_ldloc (mb, conv_arg);
5030 mono_mb_emit_ldarg (mb, argnum);
5031 mono_mb_emit_byte (mb, CEE_LDIND_I);
5032 mono_mb_emit_managed_call (mb, m, NULL);
5033 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5034 mono_mb_emit_byte (mb, CEE_STIND_REF);
5035 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5036 mono_mb_emit_ldarg (mb, argnum);
5037 mono_mb_emit_ldloc (mb, conv_arg);
5038 mono_mb_emit_icall (mb, conv_to_icall (conv));
5039 mono_mb_emit_byte (mb, CEE_STIND_REF);
5044 mono_mb_emit_ldloc (mb, conv_arg);
5045 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5046 mono_mb_emit_icall (mb, mono_free_bstr);
5048 mono_mb_emit_icall (mb, mono_marshal_free);
5052 case MARSHAL_ACTION_PUSH:
5053 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5054 mono_mb_emit_ldloc_addr (mb, conv_arg);
5056 mono_mb_emit_ldloc (mb, conv_arg);
5059 case MARSHAL_ACTION_CONV_RESULT:
5060 mono_mb_emit_stloc (mb, 0);
5062 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5064 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5065 mono_mb_emit_exception_marshal_directive (mb, msg);
5069 mono_mb_emit_ldloc (mb, 0);
5070 mono_mb_emit_icall (mb, conv_to_icall (conv));
5071 mono_mb_emit_stloc (mb, 3);
5073 /* free the string */
5074 mono_mb_emit_ldloc (mb, 0);
5075 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5076 mono_mb_emit_icall (mb, mono_free_bstr);
5078 mono_mb_emit_icall (mb, mono_marshal_free);
5081 case MARSHAL_ACTION_MANAGED_CONV_IN:
5082 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5084 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5087 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5091 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5093 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5094 mono_mb_emit_exception_marshal_directive (mb, msg);
5098 mono_mb_emit_ldarg (mb, argnum);
5100 mono_mb_emit_byte (mb, CEE_LDIND_I);
5101 mono_mb_emit_icall (mb, conv_to_icall (conv));
5102 mono_mb_emit_stloc (mb, conv_arg);
5105 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5108 mono_mb_emit_ldarg (mb, argnum);
5109 mono_mb_emit_ldloc (mb, conv_arg);
5110 mono_mb_emit_icall (mb, conv_to_icall (conv));
5111 mono_mb_emit_byte (mb, CEE_STIND_I);
5116 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5117 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5118 /* We need to make a copy so the caller is able to free it */
5119 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5121 mono_mb_emit_icall (mb, conv_to_icall (conv));
5122 mono_mb_emit_stloc (mb, 3);
5126 g_assert_not_reached ();
5134 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5135 MonoMarshalSpec *spec, int conv_arg,
5136 MonoType **conv_arg_type, MarshalAction action)
5139 if (action == MARSHAL_ACTION_CONV_IN)
5140 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5142 MonoMethodBuilder *mb = m->mb;
5145 case MARSHAL_ACTION_CONV_IN: {
5146 MonoType *intptr_type;
5147 int dar_release_slot, pos;
5149 intptr_type = &mono_defaults.int_class->byval_arg;
5150 conv_arg = mono_mb_add_local (mb, intptr_type);
5151 *conv_arg_type = intptr_type;
5153 if (!sh_dangerous_add_ref)
5154 init_safe_handle ();
5156 mono_mb_emit_ldarg (mb, argnum);
5157 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5158 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5160 mono_mb_patch_branch (mb, pos);
5163 * My tests in show that ref SafeHandles are not really
5164 * passed as ref objects. Instead a NULL is passed as the
5167 mono_mb_emit_icon (mb, 0);
5168 mono_mb_emit_stloc (mb, conv_arg);
5172 /* Create local to hold the ref parameter to DangerousAddRef */
5173 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5175 /* set release = false; */
5176 mono_mb_emit_icon (mb, 0);
5177 mono_mb_emit_stloc (mb, dar_release_slot);
5179 /* safehandle.DangerousAddRef (ref release) */
5180 mono_mb_emit_ldarg (mb, argnum);
5181 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5182 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5184 /* Pull the handle field from SafeHandle */
5185 mono_mb_emit_ldarg (mb, argnum);
5186 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5187 mono_mb_emit_byte (mb, CEE_LDIND_I);
5188 mono_mb_emit_stloc (mb, conv_arg);
5193 case MARSHAL_ACTION_PUSH:
5195 mono_mb_emit_ldloc_addr (mb, conv_arg);
5197 mono_mb_emit_ldloc (mb, conv_arg);
5200 case MARSHAL_ACTION_CONV_OUT: {
5201 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5202 int dar_release_slot = conv_arg + 1;
5205 if (!sh_dangerous_release)
5206 init_safe_handle ();
5212 * My tests indicate that ref SafeHandles parameters are not actually
5213 * passed by ref, but instead a new Handle is created regardless of
5214 * whether a change happens in the unmanaged side.
5216 * Also, the Handle is created before calling into unmanaged code,
5217 * but we do not support that mechanism (getting to the original
5218 * handle) and it makes no difference where we create this
5220 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5222 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5225 /* refval = new SafeHandleDerived ()*/
5226 mono_mb_emit_ldarg (mb, argnum);
5227 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5228 mono_mb_emit_byte (mb, CEE_STIND_REF);
5230 /* refval.handle = returned_handle */
5231 mono_mb_emit_ldarg (mb, argnum);
5232 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5233 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5234 mono_mb_emit_ldloc (mb, conv_arg);
5235 mono_mb_emit_byte (mb, CEE_STIND_I);
5237 mono_mb_emit_ldloc (mb, dar_release_slot);
5238 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5239 mono_mb_emit_ldarg (mb, argnum);
5240 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5241 mono_mb_patch_branch (mb, label_next);
5246 case MARSHAL_ACTION_CONV_RESULT: {
5247 MonoMethod *ctor = NULL;
5248 int intptr_handle_slot;
5250 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5251 mono_mb_emit_byte (mb, CEE_POP);
5252 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5256 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5258 mono_mb_emit_byte (mb, CEE_POP);
5259 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5262 /* Store the IntPtr results into a local */
5263 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5264 mono_mb_emit_stloc (mb, intptr_handle_slot);
5266 /* Create return value */
5267 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5268 mono_mb_emit_stloc (mb, 3);
5270 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5271 mono_mb_emit_ldloc (mb, 3);
5272 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5273 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5274 mono_mb_emit_byte (mb, CEE_STIND_I);
5278 case MARSHAL_ACTION_MANAGED_CONV_IN:
5279 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5282 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5283 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5286 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5287 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5290 printf ("Unhandled case for MarshalAction: %d\n", action);
5298 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5299 MonoMarshalSpec *spec, int conv_arg,
5300 MonoType **conv_arg_type, MarshalAction action)
5303 if (action == MARSHAL_ACTION_CONV_IN)
5304 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5306 MonoMethodBuilder *mb = m->mb;
5309 case MARSHAL_ACTION_CONV_IN: {
5310 MonoType *intptr_type;
5312 intptr_type = &mono_defaults.int_class->byval_arg;
5313 conv_arg = mono_mb_add_local (mb, intptr_type);
5314 *conv_arg_type = intptr_type;
5317 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5318 mono_mb_emit_exception_marshal_directive (mb, msg);
5321 mono_mb_emit_ldarg_addr (mb, argnum);
5322 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5323 mono_mb_emit_byte (mb, CEE_ADD);
5324 mono_mb_emit_byte (mb, CEE_LDIND_I);
5325 mono_mb_emit_stloc (mb, conv_arg);
5329 case MARSHAL_ACTION_PUSH:
5330 mono_mb_emit_ldloc (mb, conv_arg);
5333 case MARSHAL_ACTION_CONV_OUT: {
5334 /* no resource release required */
5338 case MARSHAL_ACTION_CONV_RESULT: {
5339 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5340 mono_mb_emit_exception_marshal_directive (mb, msg);
5344 case MARSHAL_ACTION_MANAGED_CONV_IN:
5345 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5348 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5349 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5352 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5353 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5356 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5364 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5365 MonoMarshalSpec *spec,
5366 int conv_arg, MonoType **conv_arg_type,
5367 MarshalAction action)
5370 if (action == MARSHAL_ACTION_CONV_IN)
5371 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5373 MonoMethodBuilder *mb = m->mb;
5374 MonoClass *klass = mono_class_from_mono_type (t);
5378 case MARSHAL_ACTION_CONV_IN:
5379 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5380 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5382 m->orig_conv_args [argnum] = 0;
5384 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5385 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5386 mono_mb_emit_exception_marshal_directive (mb, msg);
5390 if (klass->delegate) {
5392 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5393 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5394 mono_mb_emit_exception_marshal_directive (mb, msg);
5396 mono_mb_emit_byte (mb, CEE_LDNULL);
5397 mono_mb_emit_stloc (mb, conv_arg);
5399 mono_mb_emit_ldarg (mb, argnum);
5400 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5401 mono_mb_emit_stloc (mb, conv_arg);
5403 } else if (klass == mono_defaults.stringbuilder_class) {
5404 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5405 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5409 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5410 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5411 mono_mb_emit_exception_marshal_directive (mb, msg);
5417 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5421 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5422 mono_mb_emit_exception_marshal_directive (mb, msg);
5426 mono_mb_emit_ldarg (mb, argnum);
5428 mono_mb_emit_byte (mb, CEE_LDIND_I);
5430 mono_mb_emit_icall (mb, conv_to_icall (conv));
5431 mono_mb_emit_stloc (mb, conv_arg);
5432 } else if (klass->blittable) {
5433 mono_mb_emit_byte (mb, CEE_LDNULL);
5434 mono_mb_emit_stloc (mb, conv_arg);
5436 mono_mb_emit_ldarg (mb, argnum);
5437 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5439 mono_mb_emit_ldarg (mb, argnum);
5440 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5441 mono_mb_emit_stloc (mb, conv_arg);
5443 mono_mb_patch_branch (mb, pos);
5446 mono_mb_emit_byte (mb, CEE_LDNULL);
5447 mono_mb_emit_stloc (mb, conv_arg);
5450 /* we dont need any conversions for out parameters */
5451 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5454 mono_mb_emit_ldarg (mb, argnum);
5455 mono_mb_emit_byte (mb, CEE_LDIND_I);
5458 mono_mb_emit_ldarg (mb, argnum);
5459 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5460 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5463 /* store the address of the source into local variable 0 */
5464 mono_mb_emit_stloc (mb, 0);
5465 mono_mb_emit_ldloc (mb, 0);
5466 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5468 /* allocate space for the native struct and store the address */
5469 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5470 mono_mb_emit_byte (mb, CEE_PREFIX1);
5471 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5472 mono_mb_emit_stloc (mb, conv_arg);
5475 /* Need to store the original buffer so we can free it later */
5476 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5477 mono_mb_emit_ldloc (mb, conv_arg);
5478 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5481 /* set the src_ptr */
5482 mono_mb_emit_ldloc (mb, 0);
5483 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5484 mono_mb_emit_stloc (mb, 0);
5487 mono_mb_emit_ldloc (mb, conv_arg);
5488 mono_mb_emit_stloc (mb, 1);
5490 /* emit valuetype conversion code */
5491 emit_struct_conv (mb, klass, FALSE);
5493 mono_mb_patch_branch (mb, pos);
5497 case MARSHAL_ACTION_CONV_OUT:
5498 if (klass == mono_defaults.stringbuilder_class) {
5500 MonoMarshalNative encoding;
5501 MonoMarshalConv conv;
5503 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5504 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5506 g_assert (encoding != -1);
5509 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5513 mono_mb_emit_ldarg (mb, argnum);
5514 mono_mb_emit_ldloc (mb, conv_arg);
5517 case MONO_NATIVE_LPWSTR:
5518 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5520 case MONO_NATIVE_LPSTR:
5521 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5524 g_assert_not_reached ();
5527 mono_mb_emit_byte (mb, CEE_STIND_REF);
5529 mono_mb_emit_ldarg (mb, argnum);
5530 mono_mb_emit_ldloc (mb, conv_arg);
5532 mono_mb_emit_icall (mb, conv_to_icall (conv));
5536 mono_mb_emit_ldloc (mb, conv_arg);
5537 mono_mb_emit_icall (mb, mono_marshal_free);
5542 if (klass->delegate) {
5544 mono_mb_emit_ldarg (mb, argnum);
5545 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5546 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5547 mono_mb_emit_ldloc (mb, conv_arg);
5548 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5549 mono_mb_emit_byte (mb, CEE_STIND_REF);
5554 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5555 /* allocate a new object */
5556 mono_mb_emit_ldarg (mb, argnum);
5557 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5558 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5559 mono_mb_emit_byte (mb, CEE_STIND_REF);
5562 /* dst = *argument */
5563 mono_mb_emit_ldarg (mb, argnum);
5566 mono_mb_emit_byte (mb, CEE_LDIND_I);
5568 mono_mb_emit_stloc (mb, 1);
5570 mono_mb_emit_ldloc (mb, 1);
5571 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5573 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5574 mono_mb_emit_ldloc (mb, 1);
5575 mono_mb_emit_icon (mb, sizeof (MonoObject));
5576 mono_mb_emit_byte (mb, CEE_ADD);
5577 mono_mb_emit_stloc (mb, 1);
5579 /* src = tmp_locals [i] */
5580 mono_mb_emit_ldloc (mb, conv_arg);
5581 mono_mb_emit_stloc (mb, 0);
5583 /* emit valuetype conversion code */
5584 emit_struct_conv (mb, klass, TRUE);
5586 /* Free the structure returned by the native code */
5587 emit_struct_free (mb, klass, conv_arg);
5589 if (m->orig_conv_args [argnum]) {
5591 * If the native function changed the pointer, then free
5592 * the original structure plus the new pointer.
5594 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5595 mono_mb_emit_ldloc (mb, conv_arg);
5596 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5598 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5599 g_assert (m->orig_conv_args [argnum]);
5601 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5604 mono_mb_emit_ldloc (mb, conv_arg);
5605 mono_mb_emit_icall (mb, mono_marshal_free);
5607 mono_mb_patch_branch (mb, pos2);
5611 /* Free the original structure passed to native code */
5612 emit_struct_free (mb, klass, conv_arg);
5614 mono_mb_patch_branch (mb, pos);
5617 case MARSHAL_ACTION_PUSH:
5619 mono_mb_emit_ldloc_addr (mb, conv_arg);
5621 mono_mb_emit_ldloc (mb, conv_arg);
5624 case MARSHAL_ACTION_CONV_RESULT:
5625 if (klass->delegate) {
5626 g_assert (!t->byref);
5627 mono_mb_emit_stloc (mb, 0);
5628 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5629 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5630 mono_mb_emit_ldloc (mb, 0);
5631 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5632 mono_mb_emit_stloc (mb, 3);
5635 mono_mb_emit_stloc (mb, 0);
5637 /* Make a copy since emit_conv modifies local 0 */
5638 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5639 mono_mb_emit_ldloc (mb, 0);
5640 mono_mb_emit_stloc (mb, loc);
5642 mono_mb_emit_byte (mb, CEE_LDNULL);
5643 mono_mb_emit_stloc (mb, 3);
5645 mono_mb_emit_ldloc (mb, 0);
5646 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5648 /* allocate result object */
5650 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5651 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5652 mono_mb_emit_stloc (mb, 3);
5656 mono_mb_emit_ldloc (mb, 3);
5657 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5658 mono_mb_emit_stloc (mb, 1);
5660 /* emit conversion code */
5661 emit_struct_conv (mb, klass, TRUE);
5663 emit_struct_free (mb, klass, loc);
5665 /* Free the pointer allocated by unmanaged code */
5666 mono_mb_emit_ldloc (mb, loc);
5667 mono_mb_emit_icall (mb, mono_marshal_free);
5668 mono_mb_patch_branch (mb, pos);
5672 case MARSHAL_ACTION_MANAGED_CONV_IN:
5673 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5675 if (klass->delegate) {
5676 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5677 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5678 mono_mb_emit_ldarg (mb, argnum);
5680 mono_mb_emit_byte (mb, CEE_LDIND_I);
5681 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5682 mono_mb_emit_stloc (mb, conv_arg);
5686 if (klass == mono_defaults.stringbuilder_class) {
5687 MonoMarshalNative encoding;
5689 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5692 g_assert (encoding == MONO_NATIVE_LPSTR);
5694 g_assert (!t->byref);
5695 g_assert (encoding != -1);
5697 mono_mb_emit_ldarg (mb, argnum);
5698 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5699 mono_mb_emit_stloc (mb, conv_arg);
5703 /* The class can not have an automatic layout */
5704 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5705 mono_mb_emit_auto_layout_exception (mb, klass);
5709 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5710 mono_mb_emit_byte (mb, CEE_LDNULL);
5711 mono_mb_emit_stloc (mb, conv_arg);
5716 mono_mb_emit_ldarg (mb, argnum);
5720 /* Check for NULL and raise an exception */
5721 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5723 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5725 mono_mb_patch_branch (mb, pos2);
5726 mono_mb_emit_ldarg (mb, argnum);
5727 mono_mb_emit_byte (mb, CEE_LDIND_I);
5730 mono_mb_emit_stloc (mb, 0);
5732 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5733 mono_mb_emit_stloc (mb, conv_arg);
5735 mono_mb_emit_ldloc (mb, 0);
5736 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5738 /* Create and set dst */
5739 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5740 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5741 mono_mb_emit_stloc (mb, conv_arg);
5742 mono_mb_emit_ldloc (mb, conv_arg);
5743 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5744 mono_mb_emit_stloc (mb, 1);
5746 /* emit valuetype conversion code */
5747 emit_struct_conv (mb, klass, TRUE);
5749 mono_mb_patch_branch (mb, pos);
5752 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5753 if (klass->delegate) {
5755 mono_mb_emit_ldarg (mb, argnum);
5756 mono_mb_emit_ldloc (mb, conv_arg);
5757 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5758 mono_mb_emit_byte (mb, CEE_STIND_I);
5764 /* Check for null */
5765 mono_mb_emit_ldloc (mb, conv_arg);
5766 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5767 mono_mb_emit_ldarg (mb, argnum);
5768 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5769 mono_mb_emit_byte (mb, CEE_STIND_REF);
5770 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5772 mono_mb_patch_branch (mb, pos);
5775 mono_mb_emit_ldloc (mb, conv_arg);
5776 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5777 mono_mb_emit_stloc (mb, 0);
5779 /* Allocate and set dest */
5780 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5781 mono_mb_emit_byte (mb, CEE_CONV_I);
5782 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5783 mono_mb_emit_stloc (mb, 1);
5785 /* Update argument pointer */
5786 mono_mb_emit_ldarg (mb, argnum);
5787 mono_mb_emit_ldloc (mb, 1);
5788 mono_mb_emit_byte (mb, CEE_STIND_I);
5790 /* emit valuetype conversion code */
5791 emit_struct_conv (mb, klass, FALSE);
5793 mono_mb_patch_branch (mb, pos2);
5794 } else if (klass == mono_defaults.stringbuilder_class) {
5795 // FIXME: What to do here ?
5797 /* byval [Out] marshalling */
5799 /* FIXME: Handle null */
5802 mono_mb_emit_ldloc (mb, conv_arg);
5803 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5804 mono_mb_emit_stloc (mb, 0);
5807 mono_mb_emit_ldarg (mb, argnum);
5808 mono_mb_emit_stloc (mb, 1);
5810 /* emit valuetype conversion code */
5811 emit_struct_conv (mb, klass, FALSE);
5815 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5816 if (klass->delegate) {
5817 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5818 mono_mb_emit_stloc (mb, 3);
5822 /* The class can not have an automatic layout */
5823 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5824 mono_mb_emit_auto_layout_exception (mb, klass);
5828 mono_mb_emit_stloc (mb, 0);
5829 /* Check for null */
5830 mono_mb_emit_ldloc (mb, 0);
5831 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5832 mono_mb_emit_byte (mb, CEE_LDNULL);
5833 mono_mb_emit_stloc (mb, 3);
5834 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5836 mono_mb_patch_branch (mb, pos);
5839 mono_mb_emit_ldloc (mb, 0);
5840 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5841 mono_mb_emit_stloc (mb, 0);
5843 /* Allocate and set dest */
5844 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5845 mono_mb_emit_byte (mb, CEE_CONV_I);
5846 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5847 mono_mb_emit_byte (mb, CEE_DUP);
5848 mono_mb_emit_stloc (mb, 1);
5849 mono_mb_emit_stloc (mb, 3);
5851 emit_struct_conv (mb, klass, FALSE);
5853 mono_mb_patch_branch (mb, pos2);
5857 g_assert_not_reached ();
5868 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5869 MonoMarshalSpec *spec,
5870 int conv_arg, MonoType **conv_arg_type,
5871 MarshalAction action)
5873 MonoMethodBuilder *mb = m->mb;
5874 static MonoMethod *get_object_for_native_variant = NULL;
5875 static MonoMethod *get_native_variant_for_object = NULL;
5877 if (!get_object_for_native_variant)
5878 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5879 g_assert (get_object_for_native_variant);
5881 if (!get_native_variant_for_object)
5882 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5883 g_assert (get_native_variant_for_object);
5886 case MARSHAL_ACTION_CONV_IN: {
5887 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5890 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5892 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5894 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5897 mono_mb_emit_ldarg (mb, argnum);
5899 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5900 mono_mb_emit_ldloc_addr (mb, conv_arg);
5901 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5905 case MARSHAL_ACTION_CONV_OUT: {
5906 static MonoMethod *variant_clear = NULL;
5909 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5910 g_assert (variant_clear);
5913 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5914 mono_mb_emit_ldarg (mb, argnum);
5915 mono_mb_emit_ldloc_addr (mb, conv_arg);
5916 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5917 mono_mb_emit_byte (mb, CEE_STIND_REF);
5920 mono_mb_emit_ldloc_addr (mb, conv_arg);
5921 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5925 case MARSHAL_ACTION_PUSH:
5927 mono_mb_emit_ldloc_addr (mb, conv_arg);
5929 mono_mb_emit_ldloc (mb, conv_arg);
5932 case MARSHAL_ACTION_CONV_RESULT: {
5933 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5934 mono_mb_emit_exception_marshal_directive (mb, msg);
5938 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5939 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5942 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5944 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5946 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5950 mono_mb_emit_ldarg (mb, argnum);
5952 mono_mb_emit_ldarg_addr (mb, argnum);
5953 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5954 mono_mb_emit_stloc (mb, conv_arg);
5958 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5959 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5960 mono_mb_emit_ldloc (mb, conv_arg);
5961 mono_mb_emit_ldarg (mb, argnum);
5962 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5967 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5968 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5969 mono_mb_emit_exception_marshal_directive (mb, msg);
5974 g_assert_not_reached ();
5980 #endif /* DISABLE_COM */
5981 #endif /* DISABLE_JIT */
5984 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5986 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5987 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5989 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5991 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6003 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6004 MonoMarshalSpec *spec,
6005 int conv_arg, MonoType **conv_arg_type,
6006 MarshalAction action)
6010 case MARSHAL_ACTION_CONV_IN:
6011 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6013 case MARSHAL_ACTION_MANAGED_CONV_IN:
6014 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6018 MonoMethodBuilder *mb = m->mb;
6019 MonoClass *klass = mono_class_from_mono_type (t);
6020 gboolean need_convert, need_free;
6021 MonoMarshalNative encoding;
6023 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6026 case MARSHAL_ACTION_CONV_IN:
6027 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6028 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6030 if (klass->element_class->blittable) {
6031 mono_mb_emit_ldarg (mb, argnum);
6033 mono_mb_emit_byte (mb, CEE_LDIND_I);
6034 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6035 mono_mb_emit_stloc (mb, conv_arg);
6038 guint32 label1, label2, label3;
6039 int index_var, src_var, dest_ptr, esize;
6040 MonoMarshalConv conv;
6041 gboolean is_string = FALSE;
6043 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6045 eklass = klass->element_class;
6047 if (eklass == mono_defaults.string_class) {
6049 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6051 else if (eklass == mono_defaults.stringbuilder_class) {
6053 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6056 conv = (MonoMarshalConv)-1;
6058 if (is_string && conv == -1) {
6059 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6060 mono_mb_emit_exception_marshal_directive (mb, msg);
6064 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6065 mono_mb_emit_ldarg (mb, argnum);
6067 mono_mb_emit_byte (mb, CEE_LDIND_I);
6068 mono_mb_emit_stloc (mb, src_var);
6071 mono_mb_emit_ldloc (mb, src_var);
6072 mono_mb_emit_stloc (mb, conv_arg);
6073 mono_mb_emit_ldloc (mb, src_var);
6074 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6077 esize = sizeof (gpointer);
6078 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6079 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6081 esize = mono_class_native_size (eklass, NULL);
6083 /* allocate space for the native struct and store the address */
6084 mono_mb_emit_icon (mb, esize);
6085 mono_mb_emit_ldloc (mb, src_var);
6086 mono_mb_emit_byte (mb, CEE_LDLEN);
6088 if (eklass == mono_defaults.string_class) {
6089 /* Make the array bigger for the terminating null */
6090 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6091 mono_mb_emit_byte (mb, CEE_ADD);
6093 mono_mb_emit_byte (mb, CEE_MUL);
6094 mono_mb_emit_byte (mb, CEE_PREFIX1);
6095 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6096 mono_mb_emit_stloc (mb, conv_arg);
6098 mono_mb_emit_ldloc (mb, conv_arg);
6099 mono_mb_emit_stloc (mb, dest_ptr);
6101 /* Emit marshalling loop */
6102 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6103 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6104 mono_mb_emit_stloc (mb, index_var);
6105 label2 = mono_mb_get_label (mb);
6106 mono_mb_emit_ldloc (mb, index_var);
6107 mono_mb_emit_ldloc (mb, src_var);
6108 mono_mb_emit_byte (mb, CEE_LDLEN);
6109 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6111 /* Emit marshalling code */
6114 mono_mb_emit_ldloc (mb, dest_ptr);
6115 mono_mb_emit_ldloc (mb, src_var);
6116 mono_mb_emit_ldloc (mb, index_var);
6117 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6118 mono_mb_emit_icall (mb, conv_to_icall (conv));
6119 mono_mb_emit_byte (mb, CEE_STIND_I);
6121 /* set the src_ptr */
6122 mono_mb_emit_ldloc (mb, src_var);
6123 mono_mb_emit_ldloc (mb, index_var);
6124 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6125 mono_mb_emit_stloc (mb, 0);
6128 mono_mb_emit_ldloc (mb, dest_ptr);
6129 mono_mb_emit_stloc (mb, 1);
6131 /* emit valuetype conversion code */
6132 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6135 mono_mb_emit_add_to_local (mb, index_var, 1);
6136 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6138 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6140 mono_mb_patch_branch (mb, label3);
6142 if (eklass == mono_defaults.string_class) {
6143 /* Null terminate */
6144 mono_mb_emit_ldloc (mb, dest_ptr);
6145 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6146 mono_mb_emit_byte (mb, CEE_STIND_REF);
6149 mono_mb_patch_branch (mb, label1);
6154 case MARSHAL_ACTION_CONV_OUT:
6155 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6156 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);
6157 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6160 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6161 int param_num = spec->data.array_data.param_num;
6162 MonoType *param_type;
6164 param_type = m->sig->params [param_num];
6166 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6167 char *msg = g_strdup ("Not implemented.");
6168 mono_mb_emit_exception_marshal_directive (mb, msg);
6173 mono_mb_emit_ldarg (mb, argnum);
6175 /* Create the managed array */
6176 mono_mb_emit_ldarg (mb, param_num);
6177 if (m->sig->params [param_num]->byref)
6178 // FIXME: Support other types
6179 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6180 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6181 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6182 /* Store into argument */
6183 mono_mb_emit_byte (mb, CEE_STIND_I);
6187 if (need_convert || need_free) {
6188 /* FIXME: Optimize blittable case */
6190 guint32 label1, label2, label3;
6191 int index_var, src_ptr, loc, esize;
6193 eklass = klass->element_class;
6194 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6195 esize = sizeof (gpointer);
6196 else if (eklass == mono_defaults.char_class)
6197 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6199 esize = mono_class_native_size (eklass, NULL);
6200 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6201 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6204 mono_mb_emit_ldarg (mb, argnum);
6206 mono_mb_emit_byte (mb, CEE_LDIND_I);
6207 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6209 mono_mb_emit_ldloc (mb, conv_arg);
6210 mono_mb_emit_stloc (mb, src_ptr);
6212 /* Emit marshalling loop */
6213 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6214 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6215 mono_mb_emit_stloc (mb, index_var);
6216 label2 = mono_mb_get_label (mb);
6217 mono_mb_emit_ldloc (mb, index_var);
6218 mono_mb_emit_ldarg (mb, argnum);
6220 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6221 mono_mb_emit_byte (mb, CEE_LDLEN);
6222 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6224 /* Emit marshalling code */
6226 if (eklass == mono_defaults.stringbuilder_class) {
6227 gboolean need_free2;
6228 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6230 g_assert (conv != -1);
6233 mono_mb_emit_ldarg (mb, argnum);
6235 mono_mb_emit_byte (mb, CEE_LDIND_I);
6236 mono_mb_emit_ldloc (mb, index_var);
6237 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6240 mono_mb_emit_ldloc (mb, src_ptr);
6241 mono_mb_emit_byte (mb, CEE_LDIND_I);
6243 mono_mb_emit_icall (mb, conv_to_icall (conv));
6247 mono_mb_emit_ldloc (mb, src_ptr);
6248 mono_mb_emit_byte (mb, CEE_LDIND_I);
6250 mono_mb_emit_icall (mb, mono_marshal_free);
6253 else if (eklass == mono_defaults.string_class) {
6256 mono_mb_emit_ldloc (mb, src_ptr);
6257 mono_mb_emit_byte (mb, CEE_LDIND_I);
6259 mono_mb_emit_icall (mb, mono_marshal_free);
6264 /* set the src_ptr */
6265 mono_mb_emit_ldloc (mb, src_ptr);
6266 mono_mb_emit_stloc (mb, 0);
6269 mono_mb_emit_ldarg (mb, argnum);
6271 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6272 mono_mb_emit_ldloc (mb, index_var);
6273 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6274 mono_mb_emit_stloc (mb, 1);
6276 /* emit valuetype conversion code */
6277 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6281 mono_mb_emit_ldloc (mb, src_ptr);
6282 mono_mb_emit_stloc (mb, loc);
6283 mono_mb_emit_ldloc (mb, loc);
6285 emit_struct_free (mb, eklass, loc);
6289 mono_mb_emit_add_to_local (mb, index_var, 1);
6290 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6292 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6294 mono_mb_patch_branch (mb, label1);
6295 mono_mb_patch_branch (mb, label3);
6298 if (klass->element_class->blittable) {
6299 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6301 mono_mb_emit_ldarg (mb, argnum);
6303 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6304 mono_mb_emit_ldloc (mb, conv_arg);
6305 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6310 case MARSHAL_ACTION_PUSH:
6312 mono_mb_emit_ldloc_addr (mb, conv_arg);
6314 mono_mb_emit_ldloc (mb, conv_arg);
6317 case MARSHAL_ACTION_CONV_RESULT:
6318 /* fixme: we need conversions here */
6319 mono_mb_emit_stloc (mb, 3);
6322 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6324 guint32 label1, label2, label3;
6325 int index_var, src_ptr, esize, param_num, num_elem;
6326 MonoMarshalConv conv;
6327 gboolean is_string = FALSE;
6329 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6330 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6333 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6334 mono_mb_emit_exception_marshal_directive (mb, msg);
6338 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6339 mono_mb_emit_exception_marshal_directive (mb, msg);
6342 if (spec->native != MONO_NATIVE_LPARRAY) {
6343 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6344 mono_mb_emit_exception_marshal_directive (mb, msg);
6348 /* FIXME: t is from the method which is wrapped, not the delegate type */
6349 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6351 param_num = spec->data.array_data.param_num;
6352 num_elem = spec->data.array_data.num_elem;
6353 if (spec->data.array_data.elem_mult == 0)
6354 /* param_num is not specified */
6357 if (param_num == -1) {
6358 if (num_elem <= 0) {
6359 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6360 mono_mb_emit_exception_marshal_directive (mb, msg);
6365 /* FIXME: Optimize blittable case */
6367 eklass = klass->element_class;
6368 if (eklass == mono_defaults.string_class) {
6370 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6372 else if (eklass == mono_defaults.stringbuilder_class) {
6374 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6377 conv = (MonoMarshalConv)-1;
6379 mono_marshal_load_type_info (eklass);
6382 esize = sizeof (gpointer);
6384 esize = mono_class_native_size (eklass, NULL);
6385 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6387 mono_mb_emit_byte (mb, CEE_LDNULL);
6388 mono_mb_emit_stloc (mb, conv_arg);
6390 /* Check param index */
6391 if (param_num != -1) {
6392 if (param_num >= m->sig->param_count) {
6393 char *msg = g_strdup ("Array size control parameter index is out of range.");
6394 mono_mb_emit_exception_marshal_directive (mb, msg);
6397 switch (m->sig->params [param_num]->type) {
6410 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6411 mono_mb_emit_exception_marshal_directive (mb, msg);
6418 mono_mb_emit_ldarg (mb, argnum);
6419 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6421 mono_mb_emit_ldarg (mb, argnum);
6422 mono_mb_emit_stloc (mb, src_ptr);
6424 /* Create managed array */
6426 * The LPArray marshalling spec says that sometimes param_num starts
6427 * from 1, sometimes it starts from 0. But MS seems to allways start
6431 if (param_num == -1) {
6432 mono_mb_emit_icon (mb, num_elem);
6434 mono_mb_emit_ldarg (mb, param_num);
6436 mono_mb_emit_icon (mb, num_elem);
6437 mono_mb_emit_byte (mb, CEE_ADD);
6439 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6442 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6443 mono_mb_emit_stloc (mb, conv_arg);
6445 if (eklass->blittable) {
6446 mono_mb_emit_ldloc (mb, conv_arg);
6447 mono_mb_emit_byte (mb, CEE_CONV_I);
6448 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6449 mono_mb_emit_byte (mb, CEE_ADD);
6450 mono_mb_emit_ldarg (mb, argnum);
6451 mono_mb_emit_ldloc (mb, conv_arg);
6452 mono_mb_emit_byte (mb, CEE_LDLEN);
6453 mono_mb_emit_icon (mb, esize);
6454 mono_mb_emit_byte (mb, CEE_MUL);
6455 mono_mb_emit_byte (mb, CEE_PREFIX1);
6456 mono_mb_emit_byte (mb, CEE_CPBLK);
6460 /* Emit marshalling loop */
6461 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6462 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6463 mono_mb_emit_stloc (mb, index_var);
6464 label2 = mono_mb_get_label (mb);
6465 mono_mb_emit_ldloc (mb, index_var);
6466 mono_mb_emit_ldloc (mb, conv_arg);
6467 mono_mb_emit_byte (mb, CEE_LDLEN);
6468 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6470 /* Emit marshalling code */
6472 g_assert (conv != -1);
6474 mono_mb_emit_ldloc (mb, conv_arg);
6475 mono_mb_emit_ldloc (mb, index_var);
6477 mono_mb_emit_ldloc (mb, src_ptr);
6478 mono_mb_emit_byte (mb, CEE_LDIND_I);
6480 mono_mb_emit_icall (mb, conv_to_icall (conv));
6481 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6484 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6485 mono_mb_emit_exception_marshal_directive (mb, msg);
6489 mono_mb_emit_add_to_local (mb, index_var, 1);
6490 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6492 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6494 mono_mb_patch_branch (mb, label1);
6495 mono_mb_patch_branch (mb, label3);
6499 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6501 guint32 label1, label2, label3;
6502 int index_var, dest_ptr, esize, param_num, num_elem;
6503 MonoMarshalConv conv;
6504 gboolean is_string = FALSE;
6507 /* Already handled in CONV_IN */
6510 /* These are already checked in CONV_IN */
6511 g_assert (!t->byref);
6512 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6513 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6515 param_num = spec->data.array_data.param_num;
6516 num_elem = spec->data.array_data.num_elem;
6518 if (spec->data.array_data.elem_mult == 0)
6519 /* param_num is not specified */
6522 if (param_num == -1) {
6523 if (num_elem <= 0) {
6524 g_assert_not_reached ();
6528 /* FIXME: Optimize blittable case */
6530 eklass = klass->element_class;
6531 if (eklass == mono_defaults.string_class) {
6533 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6535 else if (eklass == mono_defaults.stringbuilder_class) {
6537 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6540 conv = (MonoMarshalConv)-1;
6542 mono_marshal_load_type_info (eklass);
6545 esize = sizeof (gpointer);
6547 esize = mono_class_native_size (eklass, NULL);
6549 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6552 mono_mb_emit_ldloc (mb, conv_arg);
6553 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6555 mono_mb_emit_ldarg (mb, argnum);
6556 mono_mb_emit_stloc (mb, dest_ptr);
6558 if (eklass->blittable) {
6560 mono_mb_emit_ldarg (mb, argnum);
6562 mono_mb_emit_ldloc (mb, conv_arg);
6563 mono_mb_emit_byte (mb, CEE_CONV_I);
6564 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6565 mono_mb_emit_byte (mb, CEE_ADD);
6567 mono_mb_emit_ldloc (mb, conv_arg);
6568 mono_mb_emit_byte (mb, CEE_LDLEN);
6569 mono_mb_emit_icon (mb, esize);
6570 mono_mb_emit_byte (mb, CEE_MUL);
6571 mono_mb_emit_byte (mb, CEE_PREFIX1);
6572 mono_mb_emit_byte (mb, CEE_CPBLK);
6576 /* Emit marshalling loop */
6577 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6578 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6579 mono_mb_emit_stloc (mb, index_var);
6580 label2 = mono_mb_get_label (mb);
6581 mono_mb_emit_ldloc (mb, index_var);
6582 mono_mb_emit_ldloc (mb, conv_arg);
6583 mono_mb_emit_byte (mb, CEE_LDLEN);
6584 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6586 /* Emit marshalling code */
6588 g_assert (conv != -1);
6591 mono_mb_emit_ldloc (mb, dest_ptr);
6594 mono_mb_emit_ldloc (mb, conv_arg);
6595 mono_mb_emit_ldloc (mb, index_var);
6597 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6599 mono_mb_emit_icall (mb, conv_to_icall (conv));
6600 mono_mb_emit_byte (mb, CEE_STIND_I);
6603 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6604 mono_mb_emit_exception_marshal_directive (mb, msg);
6608 mono_mb_emit_add_to_local (mb, index_var, 1);
6609 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6611 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6613 mono_mb_patch_branch (mb, label1);
6614 mono_mb_patch_branch (mb, label3);
6618 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6620 guint32 label1, label2, label3;
6621 int index_var, src, dest, esize;
6622 MonoMarshalConv conv = (MonoMarshalConv)-1;
6623 gboolean is_string = FALSE;
6625 g_assert (!t->byref);
6627 eklass = klass->element_class;
6629 mono_marshal_load_type_info (eklass);
6631 if (eklass == mono_defaults.string_class) {
6633 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6636 g_assert_not_reached ();
6640 esize = sizeof (gpointer);
6641 else if (eklass == mono_defaults.char_class)
6642 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6644 esize = mono_class_native_size (eklass, NULL);
6646 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6647 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6649 mono_mb_emit_stloc (mb, src);
6650 mono_mb_emit_ldloc (mb, src);
6651 mono_mb_emit_stloc (mb, 3);
6653 /* Check for null */
6654 mono_mb_emit_ldloc (mb, src);
6655 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6657 /* Allocate native array */
6658 mono_mb_emit_icon (mb, esize);
6659 mono_mb_emit_ldloc (mb, src);
6660 mono_mb_emit_byte (mb, CEE_LDLEN);
6662 if (eklass == mono_defaults.string_class) {
6663 /* Make the array bigger for the terminating null */
6664 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6665 mono_mb_emit_byte (mb, CEE_ADD);
6667 mono_mb_emit_byte (mb, CEE_MUL);
6668 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6669 mono_mb_emit_stloc (mb, dest);
6670 mono_mb_emit_ldloc (mb, dest);
6671 mono_mb_emit_stloc (mb, 3);
6673 /* Emit marshalling loop */
6674 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6675 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6676 mono_mb_emit_stloc (mb, index_var);
6677 label2 = mono_mb_get_label (mb);
6678 mono_mb_emit_ldloc (mb, index_var);
6679 mono_mb_emit_ldloc (mb, src);
6680 mono_mb_emit_byte (mb, CEE_LDLEN);
6681 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6683 /* Emit marshalling code */
6685 g_assert (conv != -1);
6688 mono_mb_emit_ldloc (mb, dest);
6691 mono_mb_emit_ldloc (mb, src);
6692 mono_mb_emit_ldloc (mb, index_var);
6694 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6696 mono_mb_emit_icall (mb, conv_to_icall (conv));
6697 mono_mb_emit_byte (mb, CEE_STIND_I);
6700 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6701 mono_mb_emit_exception_marshal_directive (mb, msg);
6705 mono_mb_emit_add_to_local (mb, index_var, 1);
6706 mono_mb_emit_add_to_local (mb, dest, esize);
6708 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6710 mono_mb_patch_branch (mb, label3);
6711 mono_mb_patch_branch (mb, label1);
6715 g_assert_not_reached ();
6722 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6725 return &mono_defaults.int32_class->byval_arg;
6727 switch (spec->native) {
6728 case MONO_NATIVE_I1:
6729 case MONO_NATIVE_U1:
6730 return &mono_defaults.byte_class->byval_arg;
6731 case MONO_NATIVE_VARIANTBOOL:
6732 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6733 return &mono_defaults.int16_class->byval_arg;
6734 case MONO_NATIVE_BOOLEAN:
6735 return &mono_defaults.int32_class->byval_arg;
6737 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6738 return &mono_defaults.int32_class->byval_arg;
6744 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6746 MonoClass* conv_arg_class = mono_defaults.int32_class;
6748 switch (spec->native) {
6749 case MONO_NATIVE_I1:
6750 case MONO_NATIVE_U1:
6751 conv_arg_class = mono_defaults.byte_class;
6752 if (ldop) *ldop = CEE_LDIND_I1;
6754 case MONO_NATIVE_VARIANTBOOL:
6755 conv_arg_class = mono_defaults.int16_class;
6756 if (ldop) *ldop = CEE_LDIND_I2;
6758 case MONO_NATIVE_BOOLEAN:
6761 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6764 return conv_arg_class;
6768 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6769 MonoMarshalSpec *spec,
6770 int conv_arg, MonoType **conv_arg_type,
6771 MarshalAction action)
6775 case MARSHAL_ACTION_CONV_IN:
6777 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6779 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6782 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6783 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6785 *conv_arg_type = &conv_arg_class->this_arg;
6787 *conv_arg_type = &conv_arg_class->byval_arg;
6793 MonoMethodBuilder *mb = m->mb;
6796 case MARSHAL_ACTION_CONV_IN: {
6797 MonoType *local_type;
6799 guint8 ldc_op = CEE_LDC_I4_1;
6801 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6803 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6805 *conv_arg_type = local_type;
6806 conv_arg = mono_mb_add_local (mb, local_type);
6808 mono_mb_emit_ldarg (mb, argnum);
6810 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6811 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6812 mono_mb_emit_byte (mb, ldc_op);
6813 mono_mb_emit_stloc (mb, conv_arg);
6814 mono_mb_patch_branch (mb, label_false);
6819 case MARSHAL_ACTION_CONV_OUT:
6821 int label_false, label_end;
6825 mono_mb_emit_ldarg (mb, argnum);
6826 mono_mb_emit_ldloc (mb, conv_arg);
6828 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6829 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6831 label_end = mono_mb_emit_branch (mb, CEE_BR);
6832 mono_mb_patch_branch (mb, label_false);
6833 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6834 mono_mb_patch_branch (mb, label_end);
6836 mono_mb_emit_byte (mb, CEE_STIND_I1);
6840 case MARSHAL_ACTION_PUSH:
6842 mono_mb_emit_ldloc_addr (mb, conv_arg);
6844 mono_mb_emit_ldloc (mb, conv_arg);
6846 mono_mb_emit_ldarg (mb, argnum);
6849 case MARSHAL_ACTION_CONV_RESULT:
6850 /* maybe we need to make sure that it fits within 8 bits */
6851 mono_mb_emit_stloc (mb, 3);
6854 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6855 MonoClass* conv_arg_class = mono_defaults.int32_class;
6856 guint8 ldop = CEE_LDIND_I4;
6857 int label_null, label_false;
6859 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6860 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6863 *conv_arg_type = &conv_arg_class->this_arg;
6865 *conv_arg_type = &conv_arg_class->byval_arg;
6868 mono_mb_emit_ldarg (mb, argnum);
6872 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6873 mono_mb_emit_ldarg (mb, argnum);
6874 mono_mb_emit_byte (mb, ldop);
6878 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6879 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6880 mono_mb_emit_stloc (mb, conv_arg);
6881 mono_mb_patch_branch (mb, label_false);
6884 mono_mb_patch_branch (mb, label_null);
6888 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6889 guint8 stop = CEE_STIND_I4;
6890 guint8 ldc_op = CEE_LDC_I4_1;
6891 int label_null,label_false, label_end;;
6896 switch (spec->native) {
6897 case MONO_NATIVE_I1:
6898 case MONO_NATIVE_U1:
6899 stop = CEE_STIND_I1;
6901 case MONO_NATIVE_VARIANTBOOL:
6902 stop = CEE_STIND_I2;
6903 ldc_op = CEE_LDC_I4_M1;
6911 mono_mb_emit_ldarg (mb, argnum);
6912 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6914 mono_mb_emit_ldarg (mb, argnum);
6915 mono_mb_emit_ldloc (mb, conv_arg);
6917 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6918 mono_mb_emit_byte (mb, ldc_op);
6919 label_end = mono_mb_emit_branch (mb, CEE_BR);
6921 mono_mb_patch_branch (mb, label_false);
6922 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6923 mono_mb_patch_branch (mb, label_end);
6925 mono_mb_emit_byte (mb, stop);
6926 mono_mb_patch_branch (mb, label_null);
6931 g_assert_not_reached ();
6938 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6939 MonoMarshalSpec *spec, int conv_arg,
6940 MonoType **conv_arg_type, MarshalAction action)
6943 MonoMethodBuilder *mb = m->mb;
6946 case MARSHAL_ACTION_CONV_IN:
6947 /* MS seems to allow this in some cases, ie. bxc #158 */
6949 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6950 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6951 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6956 case MARSHAL_ACTION_PUSH:
6957 mono_mb_emit_ldarg (mb, argnum);
6960 case MARSHAL_ACTION_CONV_RESULT:
6961 /* no conversions necessary */
6962 mono_mb_emit_stloc (mb, 3);
6973 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6974 MonoMarshalSpec *spec, int conv_arg,
6975 MonoType **conv_arg_type, MarshalAction action)
6978 MonoMethodBuilder *mb = m->mb;
6981 case MARSHAL_ACTION_PUSH:
6982 /* fixme: dont know how to marshal that. We cant simply
6983 * convert it to a one byte UTF8 character, because an
6984 * unicode character may need more that one byte in UTF8 */
6985 mono_mb_emit_ldarg (mb, argnum);
6988 case MARSHAL_ACTION_CONV_RESULT:
6989 /* fixme: we need conversions here */
6990 mono_mb_emit_stloc (mb, 3);
7001 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7002 MonoMarshalSpec *spec, int conv_arg,
7003 MonoType **conv_arg_type, MarshalAction action)
7006 MonoMethodBuilder *mb = m->mb;
7009 case MARSHAL_ACTION_PUSH:
7010 mono_mb_emit_ldarg (mb, argnum);
7013 case MARSHAL_ACTION_CONV_RESULT:
7014 /* no conversions necessary */
7015 mono_mb_emit_stloc (mb, 3);
7026 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7027 MonoMarshalSpec *spec, int conv_arg,
7028 MonoType **conv_arg_type, MarshalAction action)
7030 /* Ensure that we have marshalling info for this param */
7031 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7033 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7034 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7036 if (spec && spec->native == MONO_NATIVE_ASANY)
7037 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7040 case MONO_TYPE_VALUETYPE:
7041 if (t->data.klass == mono_defaults.handleref_class)
7042 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7044 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7045 case MONO_TYPE_STRING:
7046 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7047 case MONO_TYPE_CLASS:
7048 case MONO_TYPE_OBJECT:
7050 if (spec && spec->native == MONO_NATIVE_STRUCT)
7051 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7053 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7054 spec->native == MONO_NATIVE_IDISPATCH ||
7055 spec->native == MONO_NATIVE_INTERFACE))
7056 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7057 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7058 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7059 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7060 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7063 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
7064 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7065 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7067 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7068 case MONO_TYPE_ARRAY:
7069 case MONO_TYPE_SZARRAY:
7070 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7071 case MONO_TYPE_BOOLEAN:
7072 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7074 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7075 case MONO_TYPE_CHAR:
7076 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7089 case MONO_TYPE_FNPTR:
7090 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7091 case MONO_TYPE_GENERICINST:
7092 if (mono_type_generic_inst_is_valuetype (t))
7093 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7095 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7103 * mono_marshal_emit_native_wrapper:
7104 * @image: the image to use for looking up custom marshallers
7105 * @sig: The signature of the native function
7106 * @piinfo: Marshalling information
7107 * @mspecs: Marshalling information
7108 * @aot: whenever the created method will be compiled by the AOT compiler
7109 * @method: if non-NULL, the pinvoke method to call
7110 * @check_exceptions: Whenever to check for pending exceptions after the native call
7111 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7113 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7116 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)
7118 EmitMarshalContext m;
7119 MonoMethodSignature *csig;
7121 int i, argnum, *tmp_locals;
7122 int type, param_shift = 0;
7123 static MonoMethodSignature *get_last_error_sig = NULL;
7124 int coop_gc_stack_dummy, coop_gc_var;
7126 memset (&m, 0, sizeof (m));
7131 /* we copy the signature, so that we can set pinvoke to 0 */
7133 /* The function address is passed as the first argument */
7134 g_assert (!sig->hasthis);
7137 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7145 /* we allocate local for use with emit_struct_conv() */
7146 /* allocate local 0 (pointer) src_ptr */
7147 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7148 /* allocate local 1 (pointer) dst_ptr */
7149 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7150 /* allocate local 2 (boolean) delete_old */
7151 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7153 /* delete_old = FALSE */
7154 mono_mb_emit_icon (mb, 0);
7155 mono_mb_emit_stloc (mb, 2);
7157 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7158 /* allocate local 3 to store the return value */
7159 mono_mb_add_local (mb, sig->ret);
7162 if (mono_threads_is_coop_enabled ()) {
7163 /* local 4, dummy local used to get a stack address for suspend funcs */
7164 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7165 /* local 5, the local to be used when calling the suspend funcs */
7166 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7169 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7170 /* Return type custom marshaling */
7172 * Since we can't determine the return type of the unmanaged function,
7173 * we assume it returns a pointer, and pass that pointer to
7174 * MarshalNativeToManaged.
7176 csig->ret = &mono_defaults.int_class->byval_arg;
7179 /* we first do all conversions */
7180 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7181 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7183 for (i = 0; i < sig->param_count; i ++) {
7184 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7187 /* push all arguments */
7190 mono_mb_emit_byte (mb, CEE_LDARG_0);
7192 for (i = 0; i < sig->param_count; i++) {
7193 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7196 if (mono_threads_is_coop_enabled ()) {
7197 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7198 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7199 mono_mb_emit_stloc (mb, coop_gc_var);
7202 /* call the native method */
7204 mono_mb_emit_byte (mb, CEE_LDARG_0);
7205 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7206 mono_mb_emit_byte (mb, CEE_LDIND_I);
7207 mono_mb_emit_calli (mb, csig);
7208 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7210 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7212 g_assert_not_reached ();
7217 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7218 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7219 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7220 mono_mb_emit_calli (mb, csig);
7222 mono_mb_emit_native_call (mb, csig, func);
7226 /* Set LastError if needed */
7227 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7228 if (!get_last_error_sig) {
7229 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7230 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7231 get_last_error_sig->pinvoke = 1;
7236 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7237 * clobber its value.
7239 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7240 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7242 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7246 if (mono_threads_is_coop_enabled ()) {
7247 mono_mb_emit_ldloc (mb, coop_gc_var);
7248 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7249 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7252 /* convert the result */
7253 if (!sig->ret->byref) {
7254 MonoMarshalSpec *spec = mspecs [0];
7255 type = sig->ret->type;
7257 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7258 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7263 case MONO_TYPE_VOID:
7265 case MONO_TYPE_VALUETYPE:
7266 klass = sig->ret->data.klass;
7267 if (klass->enumtype) {
7268 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7271 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7285 case MONO_TYPE_FNPTR:
7286 case MONO_TYPE_STRING:
7287 case MONO_TYPE_CLASS:
7288 case MONO_TYPE_OBJECT:
7289 case MONO_TYPE_BOOLEAN:
7290 case MONO_TYPE_ARRAY:
7291 case MONO_TYPE_SZARRAY:
7292 case MONO_TYPE_CHAR:
7294 case MONO_TYPE_GENERICINST:
7295 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7297 case MONO_TYPE_TYPEDBYREF:
7299 g_warning ("return type 0x%02x unknown", sig->ret->type);
7300 g_assert_not_reached ();
7304 mono_mb_emit_stloc (mb, 3);
7308 * Need to call this after converting the result since MONO_VTADDR needs
7309 * to be adjacent to the call instruction.
7311 if (check_exceptions)
7312 emit_thread_interrupt_checkpoint (mb);
7314 /* we need to convert byref arguments back and free string arrays */
7315 for (i = 0; i < sig->param_count; i++) {
7316 MonoType *t = sig->params [i];
7317 MonoMarshalSpec *spec = mspecs [i + 1];
7319 argnum = i + param_shift;
7321 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7322 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7327 case MONO_TYPE_STRING:
7328 case MONO_TYPE_VALUETYPE:
7329 case MONO_TYPE_CLASS:
7330 case MONO_TYPE_OBJECT:
7331 case MONO_TYPE_SZARRAY:
7332 case MONO_TYPE_BOOLEAN:
7333 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7340 if (!MONO_TYPE_IS_VOID(sig->ret))
7341 mono_mb_emit_ldloc (mb, 3);
7343 mono_mb_emit_byte (mb, CEE_RET);
7345 #endif /* DISABLE_JIT */
7348 * mono_marshal_get_native_wrapper:
7349 * @method: The MonoMethod to wrap.
7350 * @check_exceptions: Whenever to check for pending exceptions
7352 * generates IL code for the pinvoke wrapper (the generated method
7353 * calls the unmanaged code in piinfo->addr)
7354 * The wrapper info for the wrapper is a WrapperInfo structure.
7357 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7359 MonoMethodSignature *sig, *csig;
7360 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7361 MonoMethodBuilder *mb;
7362 MonoMarshalSpec **mspecs;
7365 gboolean pinvoke = FALSE;
7368 const char *exc_class = "MissingMethodException";
7369 const char *exc_arg = NULL;
7372 g_assert (method != NULL);
7373 g_assert (mono_method_signature (method)->pinvoke);
7375 GHashTable **cache_ptr;
7378 if (check_exceptions)
7379 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7381 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7383 if (check_exceptions)
7384 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7386 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7389 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7391 if ((res = mono_marshal_find_in_cache (cache, method)))
7394 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7395 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7399 return mono_cominterop_get_native_wrapper (method);
7401 g_assert_not_reached ();
7405 sig = mono_method_signature (method);
7407 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7408 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7411 if (!piinfo->addr) {
7413 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7414 exc_arg = "Method contains unsupported native code";
7416 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7418 piinfo->addr = mono_lookup_internal_call (method);
7422 /* hack - redirect certain string constructors to CreateString */
7423 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7424 g_assert (!pinvoke);
7425 g_assert (method->string_ctor);
7426 g_assert (sig->hasthis);
7428 /* CreateString returns a value */
7429 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7430 csig->ret = &mono_defaults.string_class->byval_arg;
7434 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7435 if (!strcmp ("CreateString", res->name) &&
7436 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7439 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7440 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7442 /* create a wrapper to preserve .ctor in stack trace */
7443 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7446 mono_mb_emit_byte (mb, CEE_LDARG_0);
7447 for (i = 1; i <= csig->param_count; i++)
7448 mono_mb_emit_ldarg (mb, i);
7449 mono_mb_emit_managed_call (mb, res, NULL);
7450 mono_mb_emit_byte (mb, CEE_RET);
7453 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7454 info->d.string_ctor.method = method;
7456 /* use native_wrapper_cache because internal calls are looked up there */
7457 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7458 csig->param_count + 1, info, NULL);
7465 /* exception will be thrown */
7466 piinfo->addr = NULL;
7467 g_warning ("cannot find CreateString for .ctor");
7470 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7472 mb->method->save_lmf = 1;
7475 * In AOT mode and embedding scenarios, it is possible that the icall is not
7476 * registered in the runtime doing the AOT compilation.
7478 if (!piinfo->addr && !aot) {
7480 mono_mb_emit_exception (mb, exc_class, exc_arg);
7482 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7483 info->d.managed_to_native.method = method;
7485 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7487 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7488 csig->param_count + 16, info, NULL);
7494 /* internal calls: we simply push all arguments and call the method (no conversions) */
7495 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7497 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7499 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7501 /* hack - string constructors returns a value */
7502 if (method->string_ctor)
7503 csig->ret = &mono_defaults.string_class->byval_arg;
7510 * Add a null check since public icalls can be called with 'call' which
7511 * does no such check.
7513 mono_mb_emit_byte (mb, CEE_LDARG_0);
7514 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7515 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7516 mono_mb_patch_branch (mb, pos);
7518 mono_mb_emit_byte (mb, CEE_LDARG_0);
7521 for (i = 0; i < sig->param_count; i++)
7522 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7525 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7526 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7527 mono_mb_emit_calli (mb, csig);
7529 g_assert (piinfo->addr);
7530 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7532 if (check_exceptions)
7533 emit_thread_interrupt_checkpoint (mb);
7534 mono_mb_emit_byte (mb, CEE_RET);
7536 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7537 info->d.managed_to_native.method = method;
7539 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7541 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7550 g_assert (piinfo->addr);
7553 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7554 mono_method_get_marshal_info (method, mspecs);
7556 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7558 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7559 info->d.managed_to_native.method = method;
7561 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7563 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7568 for (i = sig->param_count; i >= 0; i--)
7570 mono_metadata_free_marshal_spec (mspecs [i]);
7574 /* mono_method_print_code (res); */
7580 * mono_marshal_get_native_func_wrapper:
7581 * @image: The image to use for memory allocation and for looking up custom marshallers.
7582 * @sig: The signature of the function
7583 * @func: The native function to wrap
7585 * Returns a wrapper method around native functions, similar to the pinvoke
7589 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7590 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7592 MonoMethodSignature *csig;
7594 SignaturePointerPair key, *new_key;
7595 MonoMethodBuilder *mb;
7604 // Generic types are not safe to place in MonoImage caches.
7605 g_assert (!sig->is_inflated);
7607 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7608 if ((res = mono_marshal_find_in_cache (cache, &key)))
7611 name = g_strdup_printf ("wrapper_native_%p", func);
7612 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7613 mb->method->save_lmf = 1;
7616 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7619 csig = mono_metadata_signature_dup_full (image, sig);
7622 new_key = g_new (SignaturePointerPair,1);
7623 new_key->sig = csig;
7624 new_key->pointer = func;
7626 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7632 mono_marshal_set_wrapper_info (res, NULL);
7638 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7642 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7644 MonoMethodSignature *sig, *csig;
7645 MonoMethodBuilder *mb;
7650 MonoMethodPInvoke mpiinfo;
7651 MonoMethodPInvoke *piinfo = &mpiinfo;
7652 MonoMarshalSpec **mspecs;
7653 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7654 MonoImage *image = invoke->klass->image;
7657 // FIXME: include UnmanagedFunctionPointerAttribute info
7660 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7662 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7664 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7667 memset (&mpiinfo, 0, sizeof (mpiinfo));
7668 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7670 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7671 mono_method_get_marshal_info (invoke, mspecs);
7672 /* Freed below so don't alloc from mempool */
7673 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7676 name = g_strdup_printf ("wrapper_aot_native");
7677 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7678 mb->method->save_lmf = 1;
7681 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7684 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7685 info->d.managed_to_native.method = invoke;
7687 g_assert (!sig->hasthis);
7688 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7690 res = mono_mb_create_and_cache_full (cache, invoke,
7691 mb, csig, csig->param_count + 16,
7695 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7697 mono_metadata_free_marshal_spec (mspecs [i]);
7705 * mono_marshal_emit_managed_wrapper:
7707 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7708 * the delegate which wraps the managed method to be called. For closed delegates,
7709 * it could have fewer parameters than the method it wraps.
7710 * THIS_LOC is the memory location where the target of the delegate is stored.
7713 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7716 MonoMethodSignature *sig, *csig;
7722 /* we first do all conversions */
7723 for (i = 0; i < sig->param_count; i ++) {
7724 MonoType *t = sig->params [i];
7727 case MONO_TYPE_OBJECT:
7728 case MONO_TYPE_CLASS:
7729 case MONO_TYPE_VALUETYPE:
7730 case MONO_TYPE_ARRAY:
7731 case MONO_TYPE_SZARRAY:
7732 case MONO_TYPE_STRING:
7733 case MONO_TYPE_BOOLEAN:
7734 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7738 if (!sig->ret->byref) {
7739 switch (sig->ret->type) {
7740 case MONO_TYPE_STRING:
7741 csig->ret = &mono_defaults.int_class->byval_arg;
7748 MonoMethodSignature *sig, *csig;
7750 gboolean closed = FALSE;
7751 int coop_gc_var, coop_gc_dummy_local;
7756 /* allocate local 0 (pointer) src_ptr */
7757 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7758 /* allocate local 1 (pointer) dst_ptr */
7759 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7760 /* allocate local 2 (boolean) delete_old */
7761 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7763 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7764 /* Closed delegate */
7765 g_assert (sig->param_count == invoke_sig->param_count + 1);
7767 /* Use a new signature without the first argument */
7768 sig = mono_metadata_signature_dup (sig);
7769 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7770 sig->param_count --;
7773 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7774 /* allocate local 3 to store the return value */
7775 mono_mb_add_local (mb, sig->ret);
7778 if (mono_threads_is_coop_enabled ()) {
7779 /* local 4, the local to be used when calling the reset_blocking funcs */
7780 /* tons of code hardcode 3 to be the return var */
7781 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7782 /* local 5, the local used to get a stack address for suspend funcs */
7783 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7786 mono_mb_emit_icon (mb, 0);
7787 mono_mb_emit_stloc (mb, 2);
7790 * Might need to attach the thread to the JIT or change the
7791 * domain for the callback.
7793 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7794 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7796 if (mono_threads_is_coop_enabled ()) {
7797 /* XXX can we merge reset_blocking_start with JIT_ATTACH above and save one call? */
7798 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
7799 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
7800 mono_mb_emit_stloc (mb, coop_gc_var);
7803 /* we first do all conversions */
7804 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7805 for (i = 0; i < sig->param_count; i ++) {
7806 MonoType *t = sig->params [i];
7809 case MONO_TYPE_OBJECT:
7810 case MONO_TYPE_CLASS:
7811 case MONO_TYPE_VALUETYPE:
7812 case MONO_TYPE_ARRAY:
7813 case MONO_TYPE_SZARRAY:
7814 case MONO_TYPE_STRING:
7815 case MONO_TYPE_BOOLEAN:
7816 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7825 emit_thread_interrupt_checkpoint (mb);
7828 if (target_handle) {
7829 mono_mb_emit_icon (mb, (gint32)target_handle);
7830 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7833 g_assert_not_reached ();
7835 } else if (closed) {
7836 mono_mb_emit_icon (mb, (gint32)target_handle);
7837 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7840 for (i = 0; i < sig->param_count; i++) {
7841 MonoType *t = sig->params [i];
7843 if (tmp_locals [i]) {
7845 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7847 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7850 mono_mb_emit_ldarg (mb, i);
7853 mono_mb_emit_managed_call (mb, method, NULL);
7855 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7856 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7857 } else if (!sig->ret->byref) {
7858 switch (sig->ret->type) {
7859 case MONO_TYPE_VOID:
7861 case MONO_TYPE_BOOLEAN:
7864 case MONO_TYPE_CHAR:
7876 case MONO_TYPE_OBJECT:
7877 mono_mb_emit_stloc (mb, 3);
7879 case MONO_TYPE_STRING:
7880 csig->ret = &mono_defaults.int_class->byval_arg;
7881 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7883 case MONO_TYPE_VALUETYPE:
7884 case MONO_TYPE_CLASS:
7885 case MONO_TYPE_SZARRAY:
7886 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7889 g_warning ("return type 0x%02x unknown", sig->ret->type);
7890 g_assert_not_reached ();
7893 mono_mb_emit_stloc (mb, 3);
7896 /* Convert byref arguments back */
7897 for (i = 0; i < sig->param_count; i ++) {
7898 MonoType *t = sig->params [i];
7899 MonoMarshalSpec *spec = mspecs [i + 1];
7901 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7902 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7904 else if (t->byref) {
7906 case MONO_TYPE_CLASS:
7907 case MONO_TYPE_VALUETYPE:
7908 case MONO_TYPE_OBJECT:
7909 case MONO_TYPE_STRING:
7910 case MONO_TYPE_BOOLEAN:
7911 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7917 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7918 /* The [Out] information is encoded in the delegate signature */
7920 case MONO_TYPE_SZARRAY:
7921 case MONO_TYPE_CLASS:
7922 case MONO_TYPE_VALUETYPE:
7923 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7926 g_assert_not_reached ();
7931 if (mono_threads_is_coop_enabled ()) {
7932 /* XXX merge reset_blocking_end with detach */
7933 mono_mb_emit_ldloc (mb, coop_gc_var);
7934 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
7935 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
7938 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7939 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7941 if (m->retobj_var) {
7942 mono_mb_emit_ldloc (mb, m->retobj_var);
7943 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7944 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7947 if (!MONO_TYPE_IS_VOID(sig->ret))
7948 mono_mb_emit_ldloc (mb, 3);
7949 mono_mb_emit_byte (mb, CEE_RET);
7958 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7960 MonoMethodSignature *sig;
7965 * Under windows, delegates passed to native code must use the STDCALL
7966 * calling convention.
7968 csig->call_convention = MONO_CALL_STDCALL;
7971 sig = mono_method_signature (method);
7973 /* Change default calling convention if needed */
7974 /* Why is this a modopt ? */
7975 if (sig->ret && sig->ret->num_mods) {
7976 for (i = 0; i < sig->ret->num_mods; ++i) {
7978 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7979 g_assert (mono_error_ok (&error));
7980 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7981 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7982 csig->call_convention = MONO_CALL_C;
7983 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7984 csig->call_convention = MONO_CALL_STDCALL;
7985 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7986 csig->call_convention = MONO_CALL_FASTCALL;
7987 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7988 csig->call_convention = MONO_CALL_THISCALL;
7995 * generates IL code to call managed methods from unmanaged code
7996 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7999 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8001 static MonoClass *UnmanagedFunctionPointerAttribute;
8002 MonoMethodSignature *sig, *csig, *invoke_sig;
8003 MonoMethodBuilder *mb;
8004 MonoMethod *res, *invoke;
8005 MonoMarshalSpec **mspecs;
8006 MonoMethodPInvoke piinfo;
8009 EmitMarshalContext m;
8011 g_assert (method != NULL);
8012 g_assert (!mono_method_signature (method)->pinvoke);
8015 * FIXME: Should cache the method+delegate type pair, since the same method
8016 * could be called with different delegates, thus different marshalling
8019 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8021 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8024 invoke = mono_get_delegate_invoke (delegate_klass);
8025 invoke_sig = mono_method_signature (invoke);
8027 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8028 mono_method_get_marshal_info (invoke, mspecs);
8030 sig = mono_method_signature (method);
8032 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8034 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8035 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8037 /* we copy the signature, so that we can modify it */
8039 /* Need to free this later */
8040 csig = mono_metadata_signature_dup (invoke_sig);
8042 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8046 memset (&m, 0, sizeof (m));
8052 m.image = method->klass->image;
8054 mono_marshal_set_callconv_from_modopt (invoke, csig);
8056 /* Handle the UnmanagedFunctionPointerAttribute */
8057 if (!UnmanagedFunctionPointerAttribute)
8058 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8060 /* The attribute is only available in Net 2.0 */
8061 if (UnmanagedFunctionPointerAttribute) {
8062 MonoCustomAttrInfo *cinfo;
8063 MonoCustomAttrEntry *attr;
8066 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8067 * contents of the attribute without constructing it, as that might not be
8068 * possible when running in cross-compiling mode.
8070 cinfo = mono_custom_attrs_from_class (delegate_klass);
8073 for (i = 0; i < cinfo->num_attrs; ++i) {
8074 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8075 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
8076 attr = &cinfo->attrs [i];
8082 MonoArray *typed_args, *named_args;
8083 CattrNamedArg *arginfo;
8087 MonoBoolean set_last_error = 0;
8090 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8091 g_assert (mono_error_ok (&error));
8092 g_assert (mono_array_length (typed_args) == 1);
8095 o = mono_array_get (typed_args, MonoObject*, 0);
8096 call_conv = *(gint32*)mono_object_unbox (o);
8099 for (i = 0; i < mono_array_length (named_args); ++i) {
8100 CattrNamedArg *narg = &arginfo [i];
8102 o = mono_array_get (named_args, MonoObject*, i);
8104 g_assert (narg->field);
8105 if (!strcmp (narg->field->name, "CharSet")) {
8106 charset = *(gint32*)mono_object_unbox (o);
8107 } else if (!strcmp (narg->field->name, "SetLastError")) {
8108 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8109 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8110 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8111 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8112 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8114 g_assert_not_reached ();
8120 memset (&piinfo, 0, sizeof (piinfo));
8122 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8124 csig->call_convention = call_conv - 1;
8127 if (cinfo && !cinfo->cached)
8128 mono_custom_attrs_free (cinfo);
8131 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8133 if (!target_handle) {
8136 // FIXME: Associate it with the method+delegate_klass pair
8137 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8138 info->d.native_to_managed.method = method;
8139 info->d.native_to_managed.klass = delegate_klass;
8141 res = mono_mb_create_and_cache_full (cache, method,
8142 mb, csig, sig->param_count + 16,
8148 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8152 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8154 mono_metadata_free_marshal_spec (mspecs [i]);
8157 /* mono_method_print_code (res); */
8163 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8167 MonoMethodSignature *sig;
8168 MonoMethodBuilder *mb;
8173 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8175 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8178 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8179 MonoMethodSignature *csig;
8180 MonoMarshalSpec **mspecs;
8181 EmitMarshalContext m;
8183 sig = mono_method_signature (method);
8184 g_assert (!sig->hasthis);
8186 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8187 mono_method_get_marshal_info (method, mspecs);
8189 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8190 csig = mono_metadata_signature_dup_full (image, sig);
8194 memset (&m, 0, sizeof (m));
8202 mono_marshal_set_callconv_from_modopt (method, csig);
8204 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8206 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8211 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8214 for (i = sig->param_count; i >= 0; i--)
8216 mono_metadata_free_marshal_spec (mspecs [i]);
8219 return mono_compile_method (method);
8222 sig = mono_method_signature (method);
8223 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8225 param_count = sig->param_count + sig->hasthis;
8227 for (i = 0; i < param_count; i++)
8228 mono_mb_emit_ldarg (mb, i);
8230 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8231 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8233 mono_mb_emit_op (mb, CEE_CALL, method);
8234 mono_mb_emit_byte (mb, CEE_RET);
8239 method = mono_mb_create (mb, sig, param_count, NULL);
8242 return mono_compile_method (method);
8248 * The code directly following this is the cache hit, value positive branch
8250 * This function takes a new method builder with 0 locals and adds two locals
8251 * to create multiple out-branches and the fall through state of having the object
8252 * on the stack after a cache miss
8255 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8256 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8257 MonoMethodBuilder *mb)
8261 /* allocate local 0 (pointer) obj_vtable */
8262 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8263 /* allocate local 1 (pointer) cached_vtable */
8264 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8267 mono_mb_emit_ldarg (mb, obj_arg_position);
8268 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8270 /*obj_vtable = obj->vtable;*/
8271 mono_mb_emit_ldarg (mb, obj_arg_position);
8272 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8273 mono_mb_emit_byte (mb, CEE_LDIND_I);
8274 mono_mb_emit_stloc (mb, 0);
8276 /* cached_vtable = *cache*/
8277 mono_mb_emit_ldarg (mb, cache_arg_position);
8278 mono_mb_emit_byte (mb, CEE_LDIND_I);
8279 mono_mb_emit_stloc (mb, 1);
8281 mono_mb_emit_ldloc (mb, 1);
8282 mono_mb_emit_byte (mb, CEE_LDC_I4);
8283 mono_mb_emit_i4 (mb, ~0x1);
8284 mono_mb_emit_byte (mb, CEE_CONV_I);
8285 mono_mb_emit_byte (mb, CEE_AND);
8286 mono_mb_emit_ldloc (mb, 0);
8287 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8288 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8290 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8291 mono_mb_emit_ldloc (mb, 1);
8292 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8293 mono_mb_emit_byte (mb, CEE_CONV_U);
8294 mono_mb_emit_byte (mb, CEE_AND);
8295 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8296 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8299 mono_mb_patch_branch (mb, cache_miss_pos);
8302 mono_mb_emit_ldarg (mb, obj_arg_position);
8303 mono_mb_emit_ldarg (mb, class_arg_position);
8304 mono_mb_emit_ldarg (mb, cache_arg_position);
8305 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8308 #endif /* DISABLE_JIT */
8311 * This does the equivalent of mono_object_castclass_with_cache.
8312 * The wrapper info for the wrapper is a WrapperInfo structure.
8315 mono_marshal_get_castclass_with_cache (void)
8317 static MonoMethod *cached;
8319 MonoMethodBuilder *mb;
8320 MonoMethodSignature *sig;
8321 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8324 const int obj_arg_position = 0;
8325 const int class_arg_position = 1;
8326 const int cache_arg_position = 2;
8331 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8332 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8333 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8334 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8335 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8336 sig->ret = &mono_defaults.object_class->byval_arg;
8340 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8341 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8342 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8345 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8346 mono_mb_emit_ldarg (mb, obj_arg_position);
8347 mono_mb_emit_byte (mb, CEE_RET);
8350 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8351 mono_mb_patch_branch (mb, invalid_cast_pos);
8352 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8355 mono_mb_patch_branch (mb, return_null_pos);
8356 mono_mb_emit_byte (mb, CEE_LDNULL);
8357 mono_mb_emit_byte (mb, CEE_RET);
8358 #endif /* DISABLE_JIT */
8360 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8361 res = mono_mb_create (mb, sig, 8, info);
8364 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8365 mono_free_method (res);
8366 mono_metadata_free_method_signature (sig);
8374 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8376 MonoObject *isinst = mono_object_isinst (obj, klass);
8378 #ifndef DISABLE_REMOTING
8379 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8383 uintptr_t cache_update = (uintptr_t)obj->vtable;
8385 cache_update = cache_update | 0x1;
8387 *cache = cache_update;
8393 * This does the equivalent of mono_object_isinst_with_cache.
8394 * The wrapper info for the wrapper is a WrapperInfo structure.
8397 mono_marshal_get_isinst_with_cache (void)
8399 static MonoMethod *cached;
8401 MonoMethodBuilder *mb;
8402 MonoMethodSignature *sig;
8403 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8406 const int obj_arg_position = 0;
8407 const int class_arg_position = 1;
8408 const int cache_arg_position = 2;
8413 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8414 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8416 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8418 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8420 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8421 sig->ret = &mono_defaults.object_class->byval_arg;
8425 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8426 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8427 // Return the object gotten via the slow path.
8428 mono_mb_emit_byte (mb, CEE_RET);
8431 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8432 mono_mb_patch_branch (mb, return_null_pos);
8433 mono_mb_emit_byte (mb, CEE_LDNULL);
8434 mono_mb_emit_byte (mb, CEE_RET);
8437 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8438 mono_mb_emit_ldarg (mb, 0);
8439 mono_mb_emit_byte (mb, CEE_RET);
8442 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8443 res = mono_mb_create (mb, sig, 8, info);
8446 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8447 mono_free_method (res);
8448 mono_metadata_free_method_signature (sig);
8456 * mono_marshal_get_isinst:
8457 * @klass: the type of the field
8459 * This method generates a function which can be used to check if an object is
8460 * an instance of the given type, icluding the case where the object is a proxy.
8461 * The generated function has the following signature:
8462 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8465 mono_marshal_get_isinst (MonoClass *klass)
8467 static MonoMethodSignature *isint_sig = NULL;
8471 int pos_was_ok, pos_end;
8472 #ifndef DISABLE_REMOTING
8473 int pos_end2, pos_failed;
8476 MonoMethodBuilder *mb;
8478 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8479 if ((res = mono_marshal_find_in_cache (cache, klass)))
8483 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8484 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8485 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8486 isint_sig->pinvoke = 0;
8489 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8490 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8493 mb->method->save_lmf = 1;
8496 /* check if the object is a proxy that needs special cast */
8497 mono_mb_emit_ldarg (mb, 0);
8498 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8499 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8501 /* The result of MONO_CISINST can be:
8502 0) the type check succeeded
8503 1) the type check did not succeed
8504 2) a CanCastTo call is needed */
8505 #ifndef DISABLE_REMOTING
8506 mono_mb_emit_byte (mb, CEE_DUP);
8507 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8509 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8510 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8512 /* get the real proxy from the transparent proxy*/
8514 mono_mb_emit_ldarg (mb, 0);
8515 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8516 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8520 mono_mb_patch_branch (mb, pos_failed);
8521 mono_mb_emit_byte (mb, CEE_LDNULL);
8522 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8526 mono_mb_patch_branch (mb, pos_was_ok);
8527 mono_mb_emit_byte (mb, CEE_POP);
8528 mono_mb_emit_ldarg (mb, 0);
8532 mono_mb_patch_branch (mb, pos_end);
8533 mono_mb_patch_branch (mb, pos_end2);
8534 mono_mb_emit_byte (mb, CEE_RET);
8536 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8540 mono_mb_emit_byte (mb, CEE_LDNULL);
8541 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8545 mono_mb_patch_branch (mb, pos_was_ok);
8546 mono_mb_emit_ldarg (mb, 0);
8550 mono_mb_patch_branch (mb, pos_end);
8551 mono_mb_emit_byte (mb, CEE_RET);
8552 #endif /* DISABLE_REMOTING */
8553 #endif /* DISABLE_JIT */
8555 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8556 info->d.proxy.klass = klass;
8557 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8564 * mono_marshal_get_castclass:
8565 * @klass: the type of the field
8567 * This method generates a function which can be used to cast an object to
8568 * an instance of the given type, icluding the case where the object is a proxy.
8569 * The generated function has the following signature:
8570 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8571 * The wrapper info for the wrapper is a WrapperInfo structure.
8574 mono_marshal_get_castclass (MonoClass *klass)
8576 static MonoMethodSignature *castclass_sig = NULL;
8579 #ifndef DISABLE_REMOTING
8580 int pos_was_ok, pos_was_ok2;
8583 MonoMethodBuilder *mb;
8586 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8587 if ((res = mono_marshal_find_in_cache (cache, klass)))
8590 if (!castclass_sig) {
8591 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8592 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8593 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8594 castclass_sig->pinvoke = 0;
8597 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8598 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8601 mb->method->save_lmf = 1;
8604 /* check if the object is a proxy that needs special cast */
8605 mono_mb_emit_ldarg (mb, 0);
8606 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8607 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8609 /* The result of MONO_CCASTCLASS can be:
8610 0) the cast is valid
8611 1) cast of unknown proxy type
8612 or an exception if the cast is is invalid
8614 #ifndef DISABLE_REMOTING
8615 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8617 /* get the real proxy from the transparent proxy*/
8619 mono_mb_emit_ldarg (mb, 0);
8620 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8621 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8624 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8627 mono_mb_patch_branch (mb, pos_was_ok);
8628 mono_mb_patch_branch (mb, pos_was_ok2);
8630 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8631 mono_mb_emit_byte (mb, CEE_POP);
8632 #endif /* DISABLE_REMOTING */
8634 mono_mb_emit_ldarg (mb, 0);
8637 mono_mb_emit_byte (mb, CEE_RET);
8638 #endif /* DISABLE_JIT */
8640 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8642 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8650 * mono_marshal_get_struct_to_ptr:
8653 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8654 * The wrapper info for the wrapper is a WrapperInfo structure.
8657 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8659 MonoMethodBuilder *mb;
8660 static MonoMethod *stoptr = NULL;
8664 g_assert (klass != NULL);
8666 mono_marshal_load_type_info (klass);
8668 if (klass->marshal_info->str_to_ptr)
8669 return klass->marshal_info->str_to_ptr;
8672 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8675 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8678 if (klass->blittable) {
8679 mono_mb_emit_byte (mb, CEE_LDARG_1);
8680 mono_mb_emit_byte (mb, CEE_LDARG_0);
8681 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8682 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8683 mono_mb_emit_byte (mb, CEE_PREFIX1);
8684 mono_mb_emit_byte (mb, CEE_CPBLK);
8687 /* allocate local 0 (pointer) src_ptr */
8688 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8689 /* allocate local 1 (pointer) dst_ptr */
8690 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8691 /* allocate local 2 (boolean) delete_old */
8692 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8693 mono_mb_emit_byte (mb, CEE_LDARG_2);
8694 mono_mb_emit_stloc (mb, 2);
8696 /* initialize src_ptr to point to the start of object data */
8697 mono_mb_emit_byte (mb, CEE_LDARG_0);
8698 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8699 mono_mb_emit_stloc (mb, 0);
8701 /* initialize dst_ptr */
8702 mono_mb_emit_byte (mb, CEE_LDARG_1);
8703 mono_mb_emit_stloc (mb, 1);
8705 emit_struct_conv (mb, klass, FALSE);
8708 mono_mb_emit_byte (mb, CEE_RET);
8710 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8711 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8714 mono_marshal_lock ();
8715 if (!klass->marshal_info->str_to_ptr)
8716 klass->marshal_info->str_to_ptr = res;
8718 res = klass->marshal_info->str_to_ptr;
8719 mono_marshal_unlock ();
8724 * mono_marshal_get_ptr_to_struct:
8727 * generates IL code for PtrToStructure (IntPtr src, object structure)
8728 * The wrapper info for the wrapper is a WrapperInfo structure.
8731 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8733 MonoMethodBuilder *mb;
8734 static MonoMethodSignature *ptostr = NULL;
8738 g_assert (klass != NULL);
8740 mono_marshal_load_type_info (klass);
8742 if (klass->marshal_info->ptr_to_str)
8743 return klass->marshal_info->ptr_to_str;
8746 MonoMethodSignature *sig;
8748 /* Create the signature corresponding to
8749 static void PtrToStructure (IntPtr ptr, object structure);
8750 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8751 sig = mono_create_icall_signature ("void ptr object");
8752 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8754 mono_memory_barrier ();
8758 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8761 if (klass->blittable) {
8762 mono_mb_emit_byte (mb, CEE_LDARG_1);
8763 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8764 mono_mb_emit_byte (mb, CEE_LDARG_0);
8765 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8766 mono_mb_emit_byte (mb, CEE_PREFIX1);
8767 mono_mb_emit_byte (mb, CEE_CPBLK);
8770 /* allocate local 0 (pointer) src_ptr */
8771 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8772 /* allocate local 1 (pointer) dst_ptr */
8773 mono_mb_add_local (mb, &klass->this_arg);
8775 /* initialize src_ptr to point to the start of object data */
8776 mono_mb_emit_byte (mb, CEE_LDARG_0);
8777 mono_mb_emit_stloc (mb, 0);
8779 /* initialize dst_ptr */
8780 mono_mb_emit_byte (mb, CEE_LDARG_1);
8781 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8782 mono_mb_emit_stloc (mb, 1);
8784 emit_struct_conv (mb, klass, TRUE);
8787 mono_mb_emit_byte (mb, CEE_RET);
8789 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8790 res = mono_mb_create (mb, ptostr, 0, info);
8793 mono_marshal_lock ();
8794 if (!klass->marshal_info->ptr_to_str)
8795 klass->marshal_info->ptr_to_str = res;
8797 res = klass->marshal_info->ptr_to_str;
8798 mono_marshal_unlock ();
8803 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8804 * This is used to avoid infinite recursion since it is hard to determine where to
8805 * replace a method with its synchronized wrapper, and where not.
8806 * The runtime should execute METHOD instead of the wrapper.
8807 * The wrapper info for the wrapper is a WrapperInfo structure.
8810 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8812 MonoMethodBuilder *mb;
8814 MonoMethodSignature *sig;
8816 MonoGenericContext *ctx = NULL;
8817 MonoGenericContainer *container = NULL;
8819 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8820 ctx = &((MonoMethodInflated*)method)->context;
8821 method = ((MonoMethodInflated*)method)->declaring;
8822 container = mono_method_get_generic_container (method);
8824 container = method->klass->generic_container;
8825 g_assert (container);
8828 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8830 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8831 mono_mb_emit_byte (mb, CEE_RET);
8833 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8835 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8836 info->d.synchronized_inner.method = method;
8837 res = mono_mb_create (mb, sig, 0, info);
8841 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8842 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8848 * generates IL code for the synchronized wrapper: the generated method
8849 * calls METHOD while locking 'this' or the parent type.
8852 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8854 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8855 MonoMethodSignature *sig;
8856 MonoExceptionClause *clause;
8857 MonoMethodBuilder *mb;
8861 int i, pos, pos2, this_local, taken_local, ret_local = 0;
8862 MonoGenericContext *ctx = NULL;
8863 MonoMethod *orig_method = NULL;
8864 MonoGenericContainer *container = NULL;
8868 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8871 /* FIXME: Support generic methods too */
8872 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8873 orig_method = method;
8874 ctx = &((MonoMethodInflated*)method)->context;
8875 method = ((MonoMethodInflated*)method)->declaring;
8876 container = mono_method_get_generic_container (method);
8878 container = method->klass->generic_container;
8879 g_assert (container);
8886 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
8887 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8891 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
8892 if ((res = mono_marshal_find_in_cache (cache, method)))
8896 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8899 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8901 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8902 info->d.synchronized.method = method;
8905 mb->skip_visibility = 1;
8907 if (!MONO_TYPE_IS_VOID (sig->ret))
8908 ret_local = mono_mb_add_local (mb, sig->ret);
8911 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8912 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8914 /* This will throw the type load exception when the wrapper is compiled */
8915 mono_mb_emit_byte (mb, CEE_LDNULL);
8916 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8917 mono_mb_emit_byte (mb, CEE_POP);
8919 if (!MONO_TYPE_IS_VOID (sig->ret))
8920 mono_mb_emit_ldloc (mb, ret_local);
8921 mono_mb_emit_byte (mb, CEE_RET);
8924 res = mono_mb_create_and_cache_full (cache, method,
8925 mb, sig, sig->param_count + 16, info, NULL);
8933 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8934 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8936 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8937 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8940 mono_marshal_lock ();
8942 if (!enter_method) {
8943 MonoMethodDesc *desc;
8945 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
8946 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8947 g_assert (enter_method);
8948 mono_method_desc_free (desc);
8950 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8951 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8952 g_assert (exit_method);
8953 mono_method_desc_free (desc);
8955 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8956 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8957 g_assert (gettypefromhandle_method);
8958 mono_method_desc_free (desc);
8961 mono_marshal_unlock ();
8964 /* Push this or the type object */
8965 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8966 /* We have special handling for this in the JIT */
8967 int index = mono_mb_add_data (mb, method->klass);
8968 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8969 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8970 mono_mb_emit_i4 (mb, index);
8972 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8975 mono_mb_emit_ldarg (mb, 0);
8976 mono_mb_emit_stloc (mb, this_local);
8978 /* Call Monitor::Enter() */
8979 mono_mb_emit_ldloc (mb, this_local);
8980 mono_mb_emit_ldloc_addr (mb, taken_local);
8981 mono_mb_emit_managed_call (mb, enter_method, NULL);
8983 clause->try_offset = mono_mb_get_label (mb);
8985 /* Call the method */
8987 mono_mb_emit_ldarg (mb, 0);
8988 for (i = 0; i < sig->param_count; i++)
8989 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8993 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
8994 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8996 mono_mb_emit_managed_call (mb, method, NULL);
8999 if (!MONO_TYPE_IS_VOID (sig->ret))
9000 mono_mb_emit_stloc (mb, ret_local);
9002 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9004 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9005 clause->handler_offset = mono_mb_get_label (mb);
9007 /* Call Monitor::Exit() if needed */
9008 mono_mb_emit_ldloc (mb, taken_local);
9009 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9010 mono_mb_emit_ldloc (mb, this_local);
9011 mono_mb_emit_managed_call (mb, exit_method, NULL);
9012 mono_mb_patch_branch (mb, pos2);
9013 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9015 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9017 mono_mb_patch_branch (mb, pos);
9018 if (!MONO_TYPE_IS_VOID (sig->ret))
9019 mono_mb_emit_ldloc (mb, ret_local);
9020 mono_mb_emit_byte (mb, CEE_RET);
9022 mono_mb_set_clauses (mb, 1, clause);
9027 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9028 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9030 res = mono_mb_create_and_cache_full (cache, method,
9031 mb, sig, sig->param_count + 16, info, NULL);
9040 * the returned method calls 'method' unboxing the this argument
9043 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9045 MonoMethodSignature *sig = mono_method_signature (method);
9047 MonoMethodBuilder *mb;
9052 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9054 if ((res = mono_marshal_find_in_cache (cache, method)))
9057 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9059 g_assert (sig->hasthis);
9062 mono_mb_emit_ldarg (mb, 0);
9063 mono_mb_emit_icon (mb, sizeof (MonoObject));
9064 mono_mb_emit_byte (mb, CEE_ADD);
9065 for (i = 0; i < sig->param_count; ++i)
9066 mono_mb_emit_ldarg (mb, i + 1);
9067 mono_mb_emit_managed_call (mb, method, NULL);
9068 mono_mb_emit_byte (mb, CEE_RET);
9071 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9072 info->d.unbox.method = method;
9074 res = mono_mb_create_and_cache_full (cache, method,
9075 mb, sig, sig->param_count + 16, info, NULL);
9078 /* mono_method_print_code (res); */
9084 STELEMREF_OBJECT, /*no check at all*/
9085 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9086 STELEMREF_CLASS, /*only the klass->parents check*/
9087 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9088 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9089 STELEMREF_KIND_COUNT
9092 static const char *strelemref_wrapper_name[] = {
9093 "object", "sealed_class", "class", "interface", "complex"
9097 is_monomorphic_array (MonoClass *klass)
9099 MonoClass *element_class;
9100 if (klass->rank != 1)
9103 element_class = klass->element_class;
9104 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9108 get_virtual_stelemref_kind (MonoClass *element_class)
9110 if (element_class == mono_defaults.object_class)
9111 return STELEMREF_OBJECT;
9112 if (is_monomorphic_array (element_class))
9113 return STELEMREF_SEALED_CLASS;
9114 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9115 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9116 #ifdef COMPRESSED_INTERFACE_BITMAP
9117 return STELEMREF_COMPLEX;
9119 return STELEMREF_INTERFACE;
9121 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9122 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9123 return STELEMREF_COMPLEX;
9124 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9125 return STELEMREF_SEALED_CLASS;
9126 return STELEMREF_CLASS;
9132 load_array_element_address (MonoMethodBuilder *mb)
9134 mono_mb_emit_ldarg (mb, 0);
9135 mono_mb_emit_ldarg (mb, 1);
9136 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9140 load_array_class (MonoMethodBuilder *mb, int aklass)
9142 mono_mb_emit_ldarg (mb, 0);
9143 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9144 mono_mb_emit_byte (mb, CEE_LDIND_I);
9145 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9146 mono_mb_emit_byte (mb, CEE_LDIND_I);
9147 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9148 mono_mb_emit_byte (mb, CEE_LDIND_I);
9149 mono_mb_emit_stloc (mb, aklass);
9153 load_value_class (MonoMethodBuilder *mb, int vklass)
9155 mono_mb_emit_ldarg (mb, 2);
9156 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9157 mono_mb_emit_byte (mb, CEE_LDIND_I);
9158 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9159 mono_mb_emit_byte (mb, CEE_LDIND_I);
9160 mono_mb_emit_stloc (mb, vklass);
9166 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9168 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9169 printf ("slow vstore of %s\n", name);
9175 * The wrapper info for the wrapper is a WrapperInfo structure.
9178 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9179 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9180 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9181 * - Add a case for arrays of arrays.
9184 get_virtual_stelemref_wrapper (int kind)
9186 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9187 static MonoMethodSignature *signature;
9188 MonoMethodBuilder *mb;
9191 const char *param_names [16];
9193 int aklass, vklass, vtable, uiid;
9194 int array_slot_addr;
9197 if (cached_methods [kind])
9198 return cached_methods [kind];
9200 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9201 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9205 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9207 /* void this::stelemref (size_t idx, void* value) */
9208 sig->ret = &mono_defaults.void_class->byval_arg;
9209 sig->hasthis = TRUE;
9210 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9211 sig->params [1] = &mono_defaults.object_class->byval_arg;
9216 param_names [0] = "index";
9217 param_names [1] = "value";
9218 mono_mb_set_param_names (mb, param_names);
9220 /*For now simply call plain old stelemref*/
9222 case STELEMREF_OBJECT:
9223 /* ldelema (implicit bound check) */
9224 load_array_element_address (mb);
9226 mono_mb_emit_ldarg (mb, 2);
9227 mono_mb_emit_byte (mb, CEE_STIND_REF);
9228 mono_mb_emit_byte (mb, CEE_RET);
9231 case STELEMREF_COMPLEX:
9233 <ldelema (bound check)>
9236 if (!mono_object_isinst (value, aklass))
9240 *array_slot_addr = value;
9243 throw new ArrayTypeMismatchException ();
9246 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9247 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9251 /*Use this to debug/record stores that are going thru the slow path*/
9252 MonoMethodSignature *csig;
9253 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9254 csig->ret = &mono_defaults.void_class->byval_arg;
9255 csig->params [0] = &mono_defaults.object_class->byval_arg;
9256 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9257 csig->params [2] = &mono_defaults.object_class->byval_arg;
9258 mono_mb_emit_ldarg (mb, 0);
9259 mono_mb_emit_ldarg (mb, 1);
9260 mono_mb_emit_ldarg (mb, 2);
9261 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9265 /* ldelema (implicit bound check) */
9266 load_array_element_address (mb);
9267 mono_mb_emit_stloc (mb, array_slot_addr);
9269 /* if (!value) goto do_store */
9270 mono_mb_emit_ldarg (mb, 2);
9271 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9273 /* aklass = array->vtable->klass->element_class */
9274 load_array_class (mb, aklass);
9276 /*if (mono_object_isinst (value, aklass)) */
9277 mono_mb_emit_ldarg (mb, 2);
9278 mono_mb_emit_ldloc (mb, aklass);
9279 mono_mb_emit_icall (mb, mono_object_isinst);
9280 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9283 mono_mb_patch_branch (mb, b1);
9284 mono_mb_emit_ldloc (mb, array_slot_addr);
9285 mono_mb_emit_ldarg (mb, 2);
9286 mono_mb_emit_byte (mb, CEE_STIND_REF);
9287 mono_mb_emit_byte (mb, CEE_RET);
9290 mono_mb_patch_branch (mb, b2);
9292 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9295 case STELEMREF_SEALED_CLASS:
9297 <ldelema (bound check)>
9301 aklass = array->vtable->klass->element_class;
9302 vklass = value->vtable->klass;
9304 if (vklass != aklass)
9308 *array_slot_addr = value;
9311 throw new ArrayTypeMismatchException ();
9313 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9314 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9315 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9318 /* ldelema (implicit bound check) */
9319 load_array_element_address (mb);
9320 mono_mb_emit_stloc (mb, array_slot_addr);
9322 /* if (!value) goto do_store */
9323 mono_mb_emit_ldarg (mb, 2);
9324 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9326 /* aklass = array->vtable->klass->element_class */
9327 load_array_class (mb, aklass);
9329 /* vklass = value->vtable->klass */
9330 load_value_class (mb, vklass);
9332 /*if (vklass != aklass) goto do_exception; */
9333 mono_mb_emit_ldloc (mb, aklass);
9334 mono_mb_emit_ldloc (mb, vklass);
9335 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9338 mono_mb_patch_branch (mb, b1);
9339 mono_mb_emit_ldloc (mb, array_slot_addr);
9340 mono_mb_emit_ldarg (mb, 2);
9341 mono_mb_emit_byte (mb, CEE_STIND_REF);
9342 mono_mb_emit_byte (mb, CEE_RET);
9345 mono_mb_patch_branch (mb, b2);
9346 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9349 case STELEMREF_CLASS:
9352 <ldelema (bound check)>
9356 aklass = array->vtable->klass->element_class;
9357 vklass = value->vtable->klass;
9359 if (vklass->idepth < aklass->idepth)
9362 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9366 *array_slot_addr = value;
9370 throw new ArrayTypeMismatchException ();
9372 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9373 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9374 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9376 /* ldelema (implicit bound check) */
9377 load_array_element_address (mb);
9378 mono_mb_emit_stloc (mb, array_slot_addr);
9380 /* if (!value) goto do_store */
9381 mono_mb_emit_ldarg (mb, 2);
9382 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9384 /* aklass = array->vtable->klass->element_class */
9385 load_array_class (mb, aklass);
9387 /* vklass = value->vtable->klass */
9388 load_value_class (mb, vklass);
9390 /*if (mono_object_isinst (value, aklass)) */
9391 mono_mb_emit_ldarg (mb, 2);
9392 mono_mb_emit_ldloc (mb, aklass);
9393 mono_mb_emit_icall (mb, mono_object_isinst);
9394 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9396 /* if (vklass->idepth < aklass->idepth) goto failue */
9397 mono_mb_emit_ldloc (mb, vklass);
9398 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9399 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9401 mono_mb_emit_ldloc (mb, aklass);
9402 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9403 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9405 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9407 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9408 mono_mb_emit_ldloc (mb, vklass);
9409 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9410 mono_mb_emit_byte (mb, CEE_LDIND_I);
9412 mono_mb_emit_ldloc (mb, aklass);
9413 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9414 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9415 mono_mb_emit_icon (mb, 1);
9416 mono_mb_emit_byte (mb, CEE_SUB);
9417 mono_mb_emit_icon (mb, sizeof (void*));
9418 mono_mb_emit_byte (mb, CEE_MUL);
9419 mono_mb_emit_byte (mb, CEE_ADD);
9420 mono_mb_emit_byte (mb, CEE_LDIND_I);
9422 mono_mb_emit_ldloc (mb, aklass);
9423 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9426 mono_mb_patch_branch (mb, b1);
9427 mono_mb_emit_ldloc (mb, array_slot_addr);
9428 mono_mb_emit_ldarg (mb, 2);
9429 mono_mb_emit_byte (mb, CEE_STIND_REF);
9430 mono_mb_emit_byte (mb, CEE_RET);
9433 mono_mb_patch_branch (mb, b2);
9434 mono_mb_patch_branch (mb, b3);
9436 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9439 case STELEMREF_INTERFACE:
9446 klass = array->obj.vtable->klass->element_class;
9448 uiid = klass->interface_id;
9449 if (uiid > vt->max_interface_id)
9451 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9454 mono_array_setref (array, index, value);
9457 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9459 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9460 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9461 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9462 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9464 /* ldelema (implicit bound check) */
9465 load_array_element_address (mb);
9466 mono_mb_emit_stloc (mb, array_slot_addr);
9468 /* if (!value) goto do_store */
9469 mono_mb_emit_ldarg (mb, 2);
9470 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9472 /* klass = array->vtable->klass->element_class */
9473 load_array_class (mb, aklass);
9475 /* vt = value->vtable */
9476 mono_mb_emit_ldarg (mb, 2);
9477 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9478 mono_mb_emit_byte (mb, CEE_LDIND_I);
9479 mono_mb_emit_stloc (mb, vtable);
9481 /* uiid = klass->interface_id; */
9482 mono_mb_emit_ldloc (mb, aklass);
9483 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9484 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9485 mono_mb_emit_stloc (mb, uiid);
9487 /*if (uiid > vt->max_interface_id)*/
9488 mono_mb_emit_ldloc (mb, uiid);
9489 mono_mb_emit_ldloc (mb, vtable);
9490 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9491 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9492 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9494 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9496 /*vt->interface_bitmap*/
9497 mono_mb_emit_ldloc (mb, vtable);
9498 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9499 mono_mb_emit_byte (mb, CEE_LDIND_I);
9502 mono_mb_emit_ldloc (mb, uiid);
9503 mono_mb_emit_icon (mb, 3);
9504 mono_mb_emit_byte (mb, CEE_SHR_UN);
9506 /*vt->interface_bitmap [(uiid) >> 3]*/
9507 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9508 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9510 /*(1 << ((uiid)&7)))*/
9511 mono_mb_emit_icon (mb, 1);
9512 mono_mb_emit_ldloc (mb, uiid);
9513 mono_mb_emit_icon (mb, 7);
9514 mono_mb_emit_byte (mb, CEE_AND);
9515 mono_mb_emit_byte (mb, CEE_SHL);
9517 /*bitwise and the whole thing*/
9518 mono_mb_emit_byte (mb, CEE_AND);
9519 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9522 mono_mb_patch_branch (mb, b1);
9523 mono_mb_emit_ldloc (mb, array_slot_addr);
9524 mono_mb_emit_ldarg (mb, 2);
9525 mono_mb_emit_byte (mb, CEE_STIND_REF);
9526 mono_mb_emit_byte (mb, CEE_RET);
9529 mono_mb_patch_branch (mb, b2);
9530 mono_mb_patch_branch (mb, b3);
9531 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9535 mono_mb_emit_ldarg (mb, 0);
9536 mono_mb_emit_ldarg (mb, 1);
9537 mono_mb_emit_ldarg (mb, 2);
9538 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9539 mono_mb_emit_byte (mb, CEE_RET);
9542 #endif /* DISABLE_JIT */
9543 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9544 info->d.virtual_stelemref.kind = kind;
9545 res = mono_mb_create (mb, signature, 4, info);
9546 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9548 mono_marshal_lock ();
9549 if (!cached_methods [kind]) {
9550 cached_methods [kind] = res;
9551 mono_marshal_unlock ();
9553 mono_marshal_unlock ();
9554 mono_free_method (res);
9558 return cached_methods [kind];
9562 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9566 g_assert (array_class->rank == 1);
9567 kind = get_virtual_stelemref_kind (array_class->element_class);
9569 return get_virtual_stelemref_wrapper (kind);
9573 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9578 *nwrappers = STELEMREF_KIND_COUNT;
9579 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9580 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9581 res [i] = get_virtual_stelemref_wrapper (i);
9586 * The wrapper info for the wrapper is a WrapperInfo structure.
9589 mono_marshal_get_stelemref (void)
9591 static MonoMethod* ret = NULL;
9592 MonoMethodSignature *sig;
9593 MonoMethodBuilder *mb;
9596 guint32 b1, b2, b3, b4;
9599 int array_slot_addr;
9604 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9607 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9609 /* void stelemref (void* array, int idx, void* value) */
9610 sig->ret = &mono_defaults.void_class->byval_arg;
9611 sig->params [0] = &mono_defaults.object_class->byval_arg;
9612 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9613 sig->params [2] = &mono_defaults.object_class->byval_arg;
9616 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9617 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9618 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9622 <ldelema (bound check)>
9626 aklass = array->vtable->klass->element_class;
9627 vklass = value->vtable->klass;
9629 if (vklass->idepth < aklass->idepth)
9632 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9636 *array_slot_addr = value;
9640 if (mono_object_isinst (value, aklass))
9643 throw new ArrayTypeMismatchException ();
9646 /* ldelema (implicit bound check) */
9647 mono_mb_emit_ldarg (mb, 0);
9648 mono_mb_emit_ldarg (mb, 1);
9649 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9650 mono_mb_emit_stloc (mb, array_slot_addr);
9652 /* if (!value) goto do_store */
9653 mono_mb_emit_ldarg (mb, 2);
9654 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9656 /* aklass = array->vtable->klass->element_class */
9657 mono_mb_emit_ldarg (mb, 0);
9658 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9659 mono_mb_emit_byte (mb, CEE_LDIND_I);
9660 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9661 mono_mb_emit_byte (mb, CEE_LDIND_I);
9662 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9663 mono_mb_emit_byte (mb, CEE_LDIND_I);
9664 mono_mb_emit_stloc (mb, aklass);
9666 /* vklass = value->vtable->klass */
9667 mono_mb_emit_ldarg (mb, 2);
9668 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9669 mono_mb_emit_byte (mb, CEE_LDIND_I);
9670 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9671 mono_mb_emit_byte (mb, CEE_LDIND_I);
9672 mono_mb_emit_stloc (mb, vklass);
9674 /* if (vklass->idepth < aklass->idepth) goto failue */
9675 mono_mb_emit_ldloc (mb, vklass);
9676 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9677 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9679 mono_mb_emit_ldloc (mb, aklass);
9680 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9681 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9683 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9685 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9686 mono_mb_emit_ldloc (mb, vklass);
9687 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9688 mono_mb_emit_byte (mb, CEE_LDIND_I);
9690 mono_mb_emit_ldloc (mb, aklass);
9691 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9692 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9693 mono_mb_emit_icon (mb, 1);
9694 mono_mb_emit_byte (mb, CEE_SUB);
9695 mono_mb_emit_icon (mb, sizeof (void*));
9696 mono_mb_emit_byte (mb, CEE_MUL);
9697 mono_mb_emit_byte (mb, CEE_ADD);
9698 mono_mb_emit_byte (mb, CEE_LDIND_I);
9700 mono_mb_emit_ldloc (mb, aklass);
9702 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9704 copy_pos = mono_mb_get_label (mb);
9706 mono_mb_patch_branch (mb, b1);
9707 mono_mb_emit_ldloc (mb, array_slot_addr);
9708 mono_mb_emit_ldarg (mb, 2);
9709 mono_mb_emit_byte (mb, CEE_STIND_REF);
9711 mono_mb_emit_byte (mb, CEE_RET);
9714 mono_mb_patch_branch (mb, b2);
9715 mono_mb_patch_branch (mb, b3);
9717 mono_mb_emit_ldarg (mb, 2);
9718 mono_mb_emit_ldloc (mb, aklass);
9719 mono_mb_emit_icall (mb, mono_object_isinst);
9721 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9722 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9723 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9725 mono_mb_emit_byte (mb, CEE_RET);
9727 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9728 ret = mono_mb_create (mb, sig, 4, info);
9735 * mono_marshal_get_gsharedvt_in_wrapper:
9737 * This wrapper handles calls from normal code to gsharedvt code.
9739 * The wrapper info for the wrapper is a WrapperInfo structure.
9742 mono_marshal_get_gsharedvt_in_wrapper (void)
9744 static MonoMethod* ret = NULL;
9745 MonoMethodSignature *sig;
9746 MonoMethodBuilder *mb;
9752 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9754 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9755 sig->ret = &mono_defaults.void_class->byval_arg;
9759 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9761 mono_mb_emit_byte (mb, CEE_RET);
9763 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9764 ret = mono_mb_create (mb, sig, 4, info);
9771 * mono_marshal_get_gsharedvt_out_wrapper:
9773 * This wrapper handles calls from gsharedvt code to normal code.
9775 * The wrapper info for the wrapper is a WrapperInfo structure.
9778 mono_marshal_get_gsharedvt_out_wrapper (void)
9780 static MonoMethod* ret = NULL;
9781 MonoMethodSignature *sig;
9782 MonoMethodBuilder *mb;
9788 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9790 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9791 sig->ret = &mono_defaults.void_class->byval_arg;
9795 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9797 mono_mb_emit_byte (mb, CEE_RET);
9799 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9800 ret = mono_mb_create (mb, sig, 4, info);
9812 /* LOCKING: vars accessed under the marshal lock */
9813 static ArrayElemAddr *elem_addr_cache = NULL;
9814 static int elem_addr_cache_size = 0;
9815 static int elem_addr_cache_next = 0;
9818 * mono_marshal_get_array_address:
9819 * @rank: rank of the array type
9820 * @elem_size: size in bytes of an element of an array.
9822 * Returns a MonoMethod that implements the code to get the address
9823 * of an element in a multi-dimenasional array of @rank dimensions.
9824 * The returned method takes an array as the first argument and then
9825 * @rank indexes for the @rank dimensions.
9826 * If ELEM_SIZE is 0, read the array size from the array object.
9829 mono_marshal_get_array_address (int rank, int elem_size)
9832 MonoMethodBuilder *mb;
9833 MonoMethodSignature *sig;
9836 int i, bounds, ind, realidx;
9837 int branch_pos, *branch_positions;
9841 mono_marshal_lock ();
9842 for (i = 0; i < elem_addr_cache_next; ++i) {
9843 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9844 ret = elem_addr_cache [i].method;
9848 mono_marshal_unlock ();
9852 branch_positions = g_new0 (int, rank);
9854 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9856 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9857 sig->ret = &mono_defaults.int_class->byval_arg;
9858 sig->params [0] = &mono_defaults.object_class->byval_arg;
9859 for (i = 0; i < rank; ++i) {
9860 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9863 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9864 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9868 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9869 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9870 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9872 /* bounds = array->bounds; */
9873 mono_mb_emit_ldarg (mb, 0);
9874 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9875 mono_mb_emit_byte (mb, CEE_LDIND_I);
9876 mono_mb_emit_stloc (mb, bounds);
9878 /* ind is the overall element index, realidx is the partial index in a single dimension */
9879 /* ind = idx0 - bounds [0].lower_bound */
9880 mono_mb_emit_ldarg (mb, 1);
9881 mono_mb_emit_ldloc (mb, bounds);
9882 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9883 mono_mb_emit_byte (mb, CEE_ADD);
9884 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9885 mono_mb_emit_byte (mb, CEE_SUB);
9886 mono_mb_emit_stloc (mb, ind);
9887 /* if (ind >= bounds [0].length) goto exeception; */
9888 mono_mb_emit_ldloc (mb, ind);
9889 mono_mb_emit_ldloc (mb, bounds);
9890 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9891 mono_mb_emit_byte (mb, CEE_ADD);
9892 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9893 /* note that we use unsigned comparison */
9894 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9896 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9897 * We could also decide to ignore the passed elem_size and get it
9898 * from the array object, to reduce the number of methods we generate:
9899 * the additional cost is 3 memory loads and a non-immediate mul.
9901 for (i = 1; i < rank; ++i) {
9902 /* realidx = idxi - bounds [i].lower_bound */
9903 mono_mb_emit_ldarg (mb, 1 + i);
9904 mono_mb_emit_ldloc (mb, bounds);
9905 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9906 mono_mb_emit_byte (mb, CEE_ADD);
9907 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9908 mono_mb_emit_byte (mb, CEE_SUB);
9909 mono_mb_emit_stloc (mb, realidx);
9910 /* if (realidx >= bounds [i].length) goto exeception; */
9911 mono_mb_emit_ldloc (mb, realidx);
9912 mono_mb_emit_ldloc (mb, bounds);
9913 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9914 mono_mb_emit_byte (mb, CEE_ADD);
9915 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9916 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9917 /* ind = ind * bounds [i].length + realidx */
9918 mono_mb_emit_ldloc (mb, ind);
9919 mono_mb_emit_ldloc (mb, bounds);
9920 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9921 mono_mb_emit_byte (mb, CEE_ADD);
9922 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9923 mono_mb_emit_byte (mb, CEE_MUL);
9924 mono_mb_emit_ldloc (mb, realidx);
9925 mono_mb_emit_byte (mb, CEE_ADD);
9926 mono_mb_emit_stloc (mb, ind);
9929 /* return array->vector + ind * element_size */
9930 mono_mb_emit_ldarg (mb, 0);
9931 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9932 mono_mb_emit_ldloc (mb, ind);
9934 mono_mb_emit_icon (mb, elem_size);
9936 /* Load arr->vtable->klass->sizes.element_class */
9937 mono_mb_emit_ldarg (mb, 0);
9938 mono_mb_emit_byte (mb, CEE_CONV_I);
9939 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9940 mono_mb_emit_byte (mb, CEE_ADD);
9941 mono_mb_emit_byte (mb, CEE_LDIND_I);
9942 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9943 mono_mb_emit_byte (mb, CEE_ADD);
9944 mono_mb_emit_byte (mb, CEE_LDIND_I);
9945 /* sizes is an union, so this reads sizes.element_size */
9946 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9947 mono_mb_emit_byte (mb, CEE_ADD);
9948 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9950 mono_mb_emit_byte (mb, CEE_MUL);
9951 mono_mb_emit_byte (mb, CEE_ADD);
9952 mono_mb_emit_byte (mb, CEE_RET);
9954 /* patch the branches to get here and throw */
9955 for (i = 1; i < rank; ++i) {
9956 mono_mb_patch_branch (mb, branch_positions [i]);
9958 mono_mb_patch_branch (mb, branch_pos);
9959 /* throw exception */
9960 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9962 g_free (branch_positions);
9963 #endif /* DISABLE_JIT */
9965 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9966 info->d.element_addr.rank = rank;
9967 info->d.element_addr.elem_size = elem_size;
9968 ret = mono_mb_create (mb, sig, 4, info);
9971 /* cache the result */
9973 mono_marshal_lock ();
9974 for (i = 0; i < elem_addr_cache_next; ++i) {
9975 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9976 /* FIXME: free ret */
9977 ret = elem_addr_cache [i].method;
9983 if (elem_addr_cache_next >= elem_addr_cache_size) {
9984 int new_size = elem_addr_cache_size + 4;
9985 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9986 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9987 g_free (elem_addr_cache);
9988 elem_addr_cache = new_array;
9989 elem_addr_cache_size = new_size;
9991 elem_addr_cache [elem_addr_cache_next].rank = rank;
9992 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9993 elem_addr_cache [elem_addr_cache_next].method = ret;
9994 elem_addr_cache_next ++;
9996 mono_marshal_unlock ();
10001 * mono_marshal_get_array_accessor_wrapper:
10003 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10006 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10008 MonoMethodSignature *sig;
10009 MonoMethodBuilder *mb;
10013 MonoGenericContext *ctx = NULL;
10014 MonoMethod *orig_method = NULL;
10015 MonoGenericContainer *container = NULL;
10019 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10020 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10021 * FIXME: Use generic methods.
10028 g_assert_not_reached ();
10030 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10031 if ((res = mono_marshal_find_in_cache (cache, method)))
10035 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10038 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10040 #ifndef DISABLE_JIT
10041 /* Call the method */
10043 mono_mb_emit_ldarg (mb, 0);
10044 for (i = 0; i < sig->param_count; i++)
10045 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10049 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10050 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10052 mono_mb_emit_managed_call (mb, method, NULL);
10054 mono_mb_emit_byte (mb, CEE_RET);
10057 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10058 info->d.array_accessor.method = method;
10062 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10063 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10065 res = mono_mb_create_and_cache_full (cache, method,
10066 mb, sig, sig->param_count + 16,
10075 mono_marshal_alloc (gulong size, MonoError *error)
10079 mono_error_init (error);
10082 res = CoTaskMemAlloc (size);
10084 res = g_try_malloc ((gulong)size);
10086 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10092 ves_icall_marshal_alloc (gulong size)
10095 void *ret = mono_marshal_alloc (size, &error);
10096 mono_error_raise_exception (&error);
10102 mono_marshal_free (gpointer ptr)
10105 CoTaskMemFree (ptr);
10112 mono_marshal_free_array (gpointer *ptr, int size)
10119 for (i = 0; i < size; i++)
10125 mono_marshal_string_to_utf16 (MonoString *s)
10127 return s ? mono_string_chars (s) : NULL;
10131 mono_marshal_string_to_utf16_copy (MonoString *s)
10137 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10138 mono_error_raise_exception (&error); /* FIXME don't raise here */
10139 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10140 res [mono_string_length (s)] = 0;
10146 * mono_marshal_set_last_error:
10148 * This function is invoked to set the last error value from a P/Invoke call
10149 * which has SetLastError set.
10152 mono_marshal_set_last_error (void)
10155 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10157 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10162 mono_marshal_set_last_error_windows (int error)
10165 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10170 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10171 gpointer dest, gint32 length)
10176 MONO_CHECK_ARG_NULL (src,);
10177 MONO_CHECK_ARG_NULL (dest,);
10179 if (src->obj.vtable->klass->rank != 1) {
10180 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10183 if (start_index < 0) {
10184 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10188 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10191 if (start_index + length > mono_array_length (src)) {
10192 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10196 element_size = mono_array_element_size (src->obj.vtable->klass);
10198 /* no references should be involved */
10199 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10201 memcpy (dest, source_addr, length * element_size);
10205 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10206 MonoArray *dest, gint32 length)
10211 MONO_CHECK_ARG_NULL (src,);
10212 MONO_CHECK_ARG_NULL (dest,);
10214 if (dest->obj.vtable->klass->rank != 1) {
10215 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10218 if (start_index < 0) {
10219 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10223 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10226 if (start_index + length > mono_array_length (dest)) {
10227 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10230 element_size = mono_array_element_size (dest->obj.vtable->klass);
10232 /* no references should be involved */
10233 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10235 memcpy (dest_addr, src, length * element_size);
10239 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10244 return mono_string_new (mono_domain_get (), ptr);
10248 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10251 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10254 return mono_string_new_len (mono_domain_get (), ptr, len);
10259 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10261 MonoDomain *domain = mono_domain_get ();
10271 return mono_string_new_utf16 (domain, ptr, len);
10275 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10277 MonoDomain *domain = mono_domain_get ();
10280 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10283 return mono_string_new_utf16 (domain, ptr, len);
10288 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10290 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10294 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10300 MONO_CHECK_ARG_NULL (rtype, 0);
10302 type = rtype->type;
10303 klass = mono_class_from_mono_type (type);
10304 if (!mono_class_init (klass)) {
10305 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10309 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10311 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10312 return sizeof (gpointer);
10313 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10315 MonoException *exc;
10317 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10318 exc = mono_get_exception_argument ("t", msg);
10320 mono_set_pending_exception (exc);
10324 return mono_class_native_size (klass, NULL);
10328 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10330 MonoMethod *method;
10333 MONO_CHECK_ARG_NULL (obj,);
10334 MONO_CHECK_ARG_NULL (dst,);
10336 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10340 pa [2] = &delete_old;
10342 mono_runtime_invoke (method, NULL, pa, NULL);
10346 ptr_to_structure (gpointer src, MonoObject *dst)
10348 MonoMethod *method;
10351 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10356 mono_runtime_invoke (method, NULL, pa, NULL);
10360 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10364 MONO_CHECK_ARG_NULL (src,);
10365 MONO_CHECK_ARG_NULL (dst,);
10367 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10369 if (t->type == MONO_TYPE_VALUETYPE) {
10370 MonoException *exc;
10373 tmp = g_strdup_printf ("Destination is a boxed value type.");
10374 exc = mono_get_exception_argument ("dst", tmp);
10377 mono_set_pending_exception (exc);
10381 ptr_to_structure (src, dst);
10385 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10389 MonoDomain *domain = mono_domain_get ();
10394 MONO_CHECK_ARG_NULL (type, NULL);
10396 klass = mono_class_from_mono_type (type->type);
10397 if (!mono_class_init (klass)) {
10398 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10402 res = mono_object_new_checked (domain, klass, &error);
10403 mono_error_raise_exception (&error);
10405 ptr_to_structure (src, res);
10411 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10413 MonoMarshalType *info;
10416 int match_index = -1;
10418 MONO_CHECK_ARG_NULL (type, 0);
10419 MONO_CHECK_ARG_NULL (field_name, 0);
10421 fname = mono_string_to_utf8 (field_name);
10422 klass = mono_class_from_mono_type (type->type);
10423 if (!mono_class_init (klass)) {
10424 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10428 while (klass && match_index == -1) {
10429 MonoClassField* field;
10431 gpointer iter = NULL;
10432 while ((field = mono_class_get_fields (klass, &iter))) {
10433 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10435 if (!strcmp (fname, mono_field_get_name (field))) {
10442 if (match_index == -1)
10443 klass = klass->parent;
10448 if(match_index == -1) {
10449 MonoException* exc;
10452 /* Get back original class instance */
10453 klass = mono_class_from_mono_type (type->type);
10455 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10456 exc = mono_get_exception_argument ("fieldName", tmp);
10459 mono_set_pending_exception ((MonoException*)exc);
10463 info = mono_marshal_load_type_info (klass);
10464 return info->fields [match_index].offset;
10468 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10473 tres = mono_string_to_utf8 (string);
10477 len = strlen (tres) + 1;
10478 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10479 memcpy (ret, tres, len);
10484 return mono_string_to_utf8 (string);
10489 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10491 if (string == NULL)
10494 #ifdef TARGET_WIN32
10495 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10496 ((mono_string_length (string) + 1) * 2);
10498 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10500 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10501 res [mono_string_length (string)] = 0;
10507 mono_struct_delete_old (MonoClass *klass, char *ptr)
10509 MonoMarshalType *info;
10512 info = mono_marshal_load_type_info (klass);
10514 for (i = 0; i < info->num_fields; i++) {
10515 MonoMarshalConv conv;
10516 MonoType *ftype = info->fields [i].field->type;
10519 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10522 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10523 klass->unicode, &conv);
10525 cpos = ptr + info->fields [i].offset;
10528 case MONO_MARSHAL_CONV_NONE:
10529 if (MONO_TYPE_ISSTRUCT (ftype)) {
10530 mono_struct_delete_old (ftype->data.klass, cpos);
10534 case MONO_MARSHAL_CONV_STR_LPWSTR:
10535 /* We assume this field points inside a MonoString */
10537 case MONO_MARSHAL_CONV_STR_LPTSTR:
10538 #ifdef TARGET_WIN32
10539 /* We assume this field points inside a MonoString
10543 case MONO_MARSHAL_CONV_STR_LPSTR:
10544 case MONO_MARSHAL_CONV_STR_BSTR:
10545 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10546 case MONO_MARSHAL_CONV_STR_TBSTR:
10547 mono_marshal_free (*(gpointer *)cpos);
10557 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10561 MONO_CHECK_ARG_NULL (src,);
10562 MONO_CHECK_ARG_NULL (type,);
10564 klass = mono_class_from_mono_type (type->type);
10565 if (!mono_class_init (klass)) {
10566 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10570 mono_struct_delete_old (klass, (char *)src);
10574 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10577 size_t s = (size_t)size;
10580 /* This returns a valid pointer for size 0 on MS.NET */
10584 res = GlobalAlloc (GMEM_FIXED, s);
10586 res = g_try_malloc (s);
10589 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10595 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10598 size_t s = (size_t)size;
10601 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10606 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10608 res = g_try_realloc (ptr, s);
10611 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10617 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10627 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10632 res = CoTaskMemAlloc (size);
10634 if ((gulong)size == 0)
10635 /* This returns a valid pointer for size 0 on MS.NET */
10638 res = g_try_malloc ((gulong)size);
10641 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10646 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10649 CoTaskMemFree (ptr);
10656 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10661 res = CoTaskMemRealloc (ptr, size);
10663 res = g_try_realloc (ptr, (gulong)size);
10666 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10671 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10673 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10677 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10679 MonoClass *klass = mono_type_get_class (type->type);
10680 if (!mono_class_init (klass)) {
10681 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10685 return mono_ftnptr_to_delegate (klass, ftn);
10689 * mono_marshal_is_loading_type_info:
10691 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10695 mono_marshal_is_loading_type_info (MonoClass *klass)
10697 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10699 return g_slist_find (loads_list, klass) != NULL;
10703 * mono_marshal_load_type_info:
10705 * Initialize klass->marshal_info using information from metadata. This function can
10706 * recursively call itself, and the caller is responsible to avoid that by calling
10707 * mono_marshal_is_loading_type_info () beforehand.
10709 * LOCKING: Acquires the loader lock.
10712 mono_marshal_load_type_info (MonoClass* klass)
10715 guint32 native_size = 0, min_align = 1, packing;
10716 MonoMarshalType *info;
10717 MonoClassField* field;
10720 GSList *loads_list;
10722 g_assert (klass != NULL);
10724 if (klass->marshal_info)
10725 return klass->marshal_info;
10727 if (!klass->inited)
10728 mono_class_init (klass);
10730 if (klass->marshal_info)
10731 return klass->marshal_info;
10734 * This function can recursively call itself, so we keep the list of classes which are
10735 * under initialization in a TLS list.
10737 g_assert (!mono_marshal_is_loading_type_info (klass));
10738 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10739 loads_list = g_slist_prepend (loads_list, klass);
10740 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10743 while ((field = mono_class_get_fields (klass, &iter))) {
10744 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10746 if (mono_field_is_deleted (field))
10751 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10753 /* The mempool is protected by the loader lock */
10754 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10755 info->num_fields = count;
10757 /* Try to find a size for this type in metadata */
10758 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10760 if (klass->parent) {
10761 int parent_size = mono_class_native_size (klass->parent, NULL);
10763 /* Add parent size to real size */
10764 native_size += parent_size;
10765 info->native_size = parent_size;
10768 packing = klass->packing_size ? klass->packing_size : 8;
10771 while ((field = mono_class_get_fields (klass, &iter))) {
10775 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10778 if (mono_field_is_deleted (field))
10780 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10781 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10782 NULL, NULL, &info->fields [j].mspec);
10784 info->fields [j].field = field;
10786 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10787 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10788 /* This field is a hack inserted by MCS to empty structures */
10793 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10794 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10795 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10796 &align, TRUE, klass->unicode);
10797 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10798 min_align = MAX (align, min_align);
10799 info->fields [j].offset = info->native_size;
10800 info->fields [j].offset += align - 1;
10801 info->fields [j].offset &= ~(align - 1);
10802 info->native_size = info->fields [j].offset + size;
10804 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10805 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10806 &align, TRUE, klass->unicode);
10807 min_align = MAX (align, min_align);
10808 info->fields [j].offset = field->offset - sizeof (MonoObject);
10809 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10815 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10816 info->native_size = MAX (native_size, info->native_size);
10818 * If the provided Size is equal or larger than the calculated size, and there
10819 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10821 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10822 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10825 min_align = MIN (min_align, packing);
10829 if (info->native_size & (min_align - 1)) {
10830 info->native_size += min_align - 1;
10831 info->native_size &= ~(min_align - 1);
10834 info->min_align = min_align;
10836 /* Update the class's blittable info, if the layouts don't match */
10837 if (info->native_size != mono_class_value_size (klass, NULL))
10838 klass->blittable = FALSE;
10840 /* If this is an array type, ensure that we have element info */
10841 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10842 mono_marshal_load_type_info (klass->element_class);
10845 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10846 loads_list = g_slist_remove (loads_list, klass);
10847 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10849 mono_marshal_lock ();
10850 if (!klass->marshal_info) {
10851 /*We do double-checking locking on marshal_info */
10852 mono_memory_barrier ();
10853 klass->marshal_info = info;
10855 mono_marshal_unlock ();
10857 return klass->marshal_info;
10861 * mono_class_native_size:
10864 * Returns: the native size of an object instance (when marshaled
10865 * to unmanaged code)
10868 mono_class_native_size (MonoClass *klass, guint32 *align)
10870 if (!klass->marshal_info) {
10871 if (mono_marshal_is_loading_type_info (klass)) {
10876 mono_marshal_load_type_info (klass);
10881 *align = klass->marshal_info->min_align;
10883 return klass->marshal_info->native_size;
10887 * mono_type_native_stack_size:
10888 * @t: the type to return the size it uses on the stack
10890 * Returns: the number of bytes required to hold an instance of this
10891 * type on the native stack
10894 mono_type_native_stack_size (MonoType *t, guint32 *align)
10898 g_assert (t != NULL);
10904 *align = sizeof (gpointer);
10905 return sizeof (gpointer);
10909 case MONO_TYPE_BOOLEAN:
10910 case MONO_TYPE_CHAR:
10921 case MONO_TYPE_STRING:
10922 case MONO_TYPE_OBJECT:
10923 case MONO_TYPE_CLASS:
10924 case MONO_TYPE_SZARRAY:
10925 case MONO_TYPE_PTR:
10926 case MONO_TYPE_FNPTR:
10927 case MONO_TYPE_ARRAY:
10928 *align = sizeof (gpointer);
10929 return sizeof (gpointer);
10934 *align = MONO_ABI_ALIGNOF (double);
10938 *align = MONO_ABI_ALIGNOF (gint64);
10940 case MONO_TYPE_GENERICINST:
10941 if (!mono_type_generic_inst_is_valuetype (t)) {
10942 *align = sizeof (gpointer);
10943 return sizeof (gpointer);
10946 case MONO_TYPE_TYPEDBYREF:
10947 case MONO_TYPE_VALUETYPE: {
10949 MonoClass *klass = mono_class_from_mono_type (t);
10951 if (klass->enumtype)
10952 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10954 size = mono_class_native_size (klass, align);
10955 *align = *align + 3;
10965 g_error ("type 0x%02x unknown", t->type);
10971 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10972 gboolean as_field, gboolean unicode)
10974 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10977 switch (native_type) {
10978 case MONO_NATIVE_BOOLEAN:
10981 case MONO_NATIVE_I1:
10982 case MONO_NATIVE_U1:
10985 case MONO_NATIVE_I2:
10986 case MONO_NATIVE_U2:
10987 case MONO_NATIVE_VARIANTBOOL:
10990 case MONO_NATIVE_I4:
10991 case MONO_NATIVE_U4:
10992 case MONO_NATIVE_ERROR:
10995 case MONO_NATIVE_I8:
10996 case MONO_NATIVE_U8:
10997 *align = MONO_ABI_ALIGNOF (gint64);
10999 case MONO_NATIVE_R4:
11002 case MONO_NATIVE_R8:
11003 *align = MONO_ABI_ALIGNOF (double);
11005 case MONO_NATIVE_INT:
11006 case MONO_NATIVE_UINT:
11007 case MONO_NATIVE_LPSTR:
11008 case MONO_NATIVE_LPWSTR:
11009 case MONO_NATIVE_LPTSTR:
11010 case MONO_NATIVE_BSTR:
11011 case MONO_NATIVE_ANSIBSTR:
11012 case MONO_NATIVE_TBSTR:
11013 case MONO_NATIVE_LPARRAY:
11014 case MONO_NATIVE_SAFEARRAY:
11015 case MONO_NATIVE_IUNKNOWN:
11016 case MONO_NATIVE_IDISPATCH:
11017 case MONO_NATIVE_INTERFACE:
11018 case MONO_NATIVE_ASANY:
11019 case MONO_NATIVE_FUNC:
11020 case MONO_NATIVE_LPSTRUCT:
11021 *align = MONO_ABI_ALIGNOF (gpointer);
11022 return sizeof (gpointer);
11023 case MONO_NATIVE_STRUCT:
11024 klass = mono_class_from_mono_type (type);
11025 if (klass == mono_defaults.object_class &&
11026 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11030 return mono_class_native_size (klass, align);
11031 case MONO_NATIVE_BYVALTSTR: {
11032 int esize = unicode ? 2: 1;
11035 return mspec->data.array_data.num_elem * esize;
11037 case MONO_NATIVE_BYVALARRAY: {
11038 // FIXME: Have to consider ArraySubType
11040 klass = mono_class_from_mono_type (type);
11041 if (klass->element_class == mono_defaults.char_class) {
11042 esize = unicode ? 2 : 1;
11045 esize = mono_class_native_size (klass->element_class, align);
11048 return mspec->data.array_data.num_elem * esize;
11050 case MONO_NATIVE_CUSTOM:
11051 *align = sizeof (gpointer);
11052 return sizeof (gpointer);
11054 case MONO_NATIVE_CURRENCY:
11055 case MONO_NATIVE_VBBYREFSTR:
11057 g_error ("native type %02x not implemented", native_type);
11060 g_assert_not_reached ();
11065 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11074 t = &o->vtable->klass->byval_arg;
11078 case MONO_TYPE_PTR:
11081 case MONO_TYPE_BOOLEAN:
11084 case MONO_TYPE_CHAR:
11089 return mono_object_unbox (o);
11091 case MONO_TYPE_STRING:
11092 switch (string_encoding) {
11093 case MONO_NATIVE_LPWSTR:
11094 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11096 case MONO_NATIVE_LPSTR:
11097 return mono_string_to_lpstr ((MonoString*)o);
11100 g_warning ("marshaling conversion %d not implemented", string_encoding);
11101 g_assert_not_reached ();
11104 case MONO_TYPE_CLASS:
11105 case MONO_TYPE_VALUETYPE: {
11106 MonoMethod *method;
11109 MonoBoolean delete_old = FALSE;
11111 klass = t->data.klass;
11113 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11116 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11117 klass->blittable || klass->enumtype))
11118 return mono_object_unbox (o);
11120 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11121 mono_error_raise_exception (&error); /* FIXME don't raise here */
11123 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11124 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11128 pa [2] = &delete_old;
11130 mono_runtime_invoke (method, NULL, pa, NULL);
11138 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11143 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11151 t = &o->vtable->klass->byval_arg;
11153 case MONO_TYPE_STRING:
11154 switch (string_encoding) {
11155 case MONO_NATIVE_LPWSTR:
11156 case MONO_NATIVE_LPSTR:
11157 mono_marshal_free (ptr);
11160 g_warning ("marshaling conversion %d not implemented", string_encoding);
11161 g_assert_not_reached ();
11164 case MONO_TYPE_CLASS:
11165 case MONO_TYPE_VALUETYPE: {
11166 klass = t->data.klass;
11168 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11169 klass->blittable || klass->enumtype))
11172 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11173 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11179 mono_runtime_invoke (method, NULL, pa, NULL);
11182 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11183 mono_struct_delete_old (klass, (char *)ptr);
11186 mono_marshal_free (ptr);
11195 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11197 MonoMethodSignature *sig, *csig;
11198 MonoMethodBuilder *mb;
11203 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11204 mb->method->slot = -1;
11206 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11207 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11209 sig = mono_method_signature (method);
11210 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11211 csig->generic_param_count = 0;
11213 #ifndef DISABLE_JIT
11214 mono_mb_emit_ldarg (mb, 0);
11215 for (i = 0; i < csig->param_count; i++)
11216 mono_mb_emit_ldarg (mb, i + 1);
11217 mono_mb_emit_managed_call (mb, method, NULL);
11218 mono_mb_emit_byte (mb, CEE_RET);
11220 /* We can corlib internal methods */
11221 mb->skip_visibility = TRUE;
11223 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11224 info->d.generic_array_helper.method = method;
11225 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11233 * The mono_win32_compat_* functions are implementations of inline
11234 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11235 * although not exported by kernel32.
11237 * We map the appropiate kernel32 entries to these functions using
11238 * dllmaps declared in the global etc/mono/config.
11242 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11244 if (!dest || !source)
11247 memcpy (dest, source, length);
11251 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11253 memset (dest, fill, length);
11257 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11259 if (!dest || !source)
11262 memmove (dest, source, length);
11266 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11268 memset (dest, 0, length);
11272 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11277 for (i = 0; i < len; ++i)
11281 g_assert (i < len);
11284 while (byte && !(byte & 1))
11286 g_assert (byte == 1);
11289 *bitmask = buf [i];
11293 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11295 MonoMethodBuilder *mb;
11296 MonoMethodSignature *sig, *csig;
11297 MonoExceptionClause *clause;
11302 int i, param_count, sig_size, pos_leave;
11303 int coop_gc_var, coop_gc_dummy_local;
11307 klass = method->klass;
11308 image = method->klass->image;
11310 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11312 if ((res = mono_marshal_find_in_cache (cache, method)))
11315 sig = mono_method_signature (method);
11316 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11318 /* add "this" and exception param */
11319 param_count = sig->param_count + sig->hasthis + 1;
11321 /* dup & extend signature */
11322 csig = mono_metadata_signature_alloc (image, param_count);
11323 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11324 memcpy (csig, sig, sig_size);
11325 csig->param_count = param_count;
11328 csig->call_convention = MONO_CALL_DEFAULT;
11330 if (sig->hasthis) {
11332 csig->params [0] = &klass->byval_arg;
11333 /* move params up by one */
11334 for (i = 0; i < sig->param_count; i++)
11335 csig->params [i + 1] = sig->params [i];
11338 /* setup exception param as byref+[out] */
11339 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11340 &mono_defaults.exception_class->byval_arg);
11341 csig->params [param_count - 1]->byref = 1;
11342 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11344 /* convert struct return to object */
11345 if (MONO_TYPE_ISSTRUCT (sig->ret))
11346 csig->ret = &mono_defaults.object_class->byval_arg;
11348 #ifndef DISABLE_JIT
11349 /* local 0 (temp for exception object) */
11350 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11352 /* local 1 (temp for result) */
11353 if (!MONO_TYPE_IS_VOID (sig->ret))
11354 mono_mb_add_local (mb, sig->ret);
11356 if (mono_threads_is_coop_enabled ()) {
11357 /* local 4, the local to be used when calling the reset_blocking funcs */
11358 /* tons of code hardcode 3 to be the return var */
11359 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11360 /* local 5, the local used to get a stack address for suspend funcs */
11361 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11364 /* clear exception arg */
11365 mono_mb_emit_ldarg (mb, param_count - 1);
11366 mono_mb_emit_byte (mb, CEE_LDNULL);
11367 mono_mb_emit_byte (mb, CEE_STIND_REF);
11369 if (mono_threads_is_coop_enabled ()) {
11370 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11371 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11372 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11373 mono_mb_emit_stloc (mb, coop_gc_var);
11377 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11378 clause->try_offset = mono_mb_get_label (mb);
11380 /* push method's args */
11381 for (i = 0; i < param_count - 1; i++) {
11385 mono_mb_emit_ldarg (mb, i);
11387 /* get the byval type of the param */
11388 klass = mono_class_from_mono_type (csig->params [i]);
11389 type = &klass->byval_arg;
11391 /* unbox struct args */
11392 if (MONO_TYPE_ISSTRUCT (type)) {
11393 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11395 /* byref args & and the "this" arg must remain a ptr.
11396 Otherwise make a copy of the value type */
11397 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11398 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11400 csig->params [i] = &mono_defaults.object_class->byval_arg;
11405 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11406 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11408 mono_mb_emit_op (mb, CEE_CALL, method);
11410 /* save result at local 1 */
11411 if (!MONO_TYPE_IS_VOID (sig->ret))
11412 mono_mb_emit_stloc (mb, 1);
11414 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11417 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11418 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11419 clause->data.catch_class = mono_defaults.object_class;
11421 clause->handler_offset = mono_mb_get_label (mb);
11423 /* store exception at local 0 */
11424 mono_mb_emit_stloc (mb, 0);
11425 mono_mb_emit_ldarg (mb, param_count - 1);
11426 mono_mb_emit_ldloc (mb, 0);
11427 mono_mb_emit_byte (mb, CEE_STIND_REF);
11428 mono_mb_emit_branch (mb, CEE_LEAVE);
11430 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11432 mono_mb_set_clauses (mb, 1, clause);
11434 mono_mb_patch_branch (mb, pos_leave);
11437 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11438 mono_mb_emit_ldloc (mb, 1);
11440 /* box the return value */
11441 if (MONO_TYPE_ISSTRUCT (sig->ret))
11442 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11445 if (mono_threads_is_coop_enabled ()) {
11446 /* XXX merge reset_blocking_end with detach */
11447 mono_mb_emit_ldloc (mb, coop_gc_var);
11448 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11449 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11452 mono_mb_emit_byte (mb, CEE_RET);
11455 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11462 * mono_marshal_free_dynamic_wrappers:
11464 * Free wrappers of the dynamic method METHOD.
11467 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11469 MonoImage *image = method->klass->image;
11471 g_assert (method_is_dynamic (method));
11473 /* This could be called during shutdown */
11474 if (marshal_mutex_initialized)
11475 mono_marshal_lock ();
11477 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11478 * they could be shared with other methods ?
11480 if (image->wrapper_caches.runtime_invoke_direct_cache)
11481 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11482 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11483 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11484 // FIXME: Need to clear the caches in other images as well
11485 if (image->delegate_bound_static_invoke_cache)
11486 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11488 if (marshal_mutex_initialized)
11489 mono_marshal_unlock ();