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);
147 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
150 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
153 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
156 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
159 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
162 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
165 mono_delegate_to_ftnptr (MonoDelegate *delegate);
168 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
171 mono_array_to_savearray (MonoArray *array);
174 mono_array_to_lparray (MonoArray *array);
177 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
180 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
183 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
186 mono_array_to_savearray (MonoArray *array);
189 mono_array_to_lparray (MonoArray *array);
192 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
194 /* Lazy class loading functions */
195 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
196 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
197 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
198 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
200 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
201 static MonoMethod *sh_dangerous_add_ref;
202 static MonoMethod *sh_dangerous_release;
207 sh_dangerous_add_ref = mono_class_get_method_from_name (
208 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
209 sh_dangerous_release = mono_class_get_method_from_name (
210 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
214 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
216 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
218 mono_register_jit_icall (func, name, sig, save);
222 mono_signature_no_pinvoke (MonoMethod *method)
224 MonoMethodSignature *sig = mono_method_signature (method);
226 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
227 sig->pinvoke = FALSE;
234 mono_marshal_init_tls (void)
236 mono_native_tls_alloc (&last_error_tls_id, NULL);
237 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
241 mono_marshal_init (void)
243 static gboolean module_initialized = FALSE;
245 if (!module_initialized) {
246 module_initialized = TRUE;
247 mono_os_mutex_init_recursive (&marshal_mutex);
248 marshal_mutex_initialized = TRUE;
250 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
251 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
252 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
253 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
254 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
255 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
256 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
257 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
258 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
259 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
260 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
261 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
262 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
263 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
264 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
265 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
266 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
267 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
268 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
269 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
270 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
271 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
272 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
273 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
274 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
275 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
276 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
277 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
278 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
279 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
280 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
281 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
282 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
283 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
284 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
285 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
286 register_icall (g_free, "g_free", "void ptr", FALSE);
287 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
288 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
289 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
290 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
291 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
292 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
293 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
294 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
295 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
296 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
298 mono_cominterop_init ();
299 mono_remoting_init ();
301 if (mono_threads_is_coop_enabled ()) {
302 register_icall (mono_threads_prepare_blocking, "mono_threads_prepare_blocking", "ptr ptr", FALSE);
303 register_icall (mono_threads_finish_blocking, "mono_threads_finish_blocking", "void ptr ptr", FALSE);
304 register_icall (mono_threads_reset_blocking_start, "mono_threads_reset_blocking_start","ptr ptr", TRUE);
305 register_icall (mono_threads_reset_blocking_end, "mono_threads_reset_blocking_end","void ptr ptr", TRUE);
311 mono_marshal_cleanup (void)
313 mono_cominterop_cleanup ();
315 mono_native_tls_free (load_type_info_tls_id);
316 mono_native_tls_free (last_error_tls_id);
317 mono_os_mutex_destroy (&marshal_mutex);
318 marshal_mutex_initialized = FALSE;
322 mono_marshal_lock_internal (void)
324 mono_marshal_lock ();
328 mono_marshal_unlock_internal (void)
330 mono_marshal_unlock ();
333 /* This is a JIT icall, it sets the pending exception and return NULL on error */
335 mono_delegate_to_ftnptr (MonoDelegate *delegate)
338 MonoMethod *method, *wrapper;
340 uint32_t target_handle = 0;
345 if (delegate->delegate_trampoline)
346 return delegate->delegate_trampoline;
348 klass = ((MonoObject *)delegate)->vtable->klass;
349 g_assert (klass->delegate);
351 method = delegate->method;
352 if (delegate->method_is_virtual)
353 method = mono_object_get_virtual_method (delegate->target, method);
355 if (mono_method_signature (method)->pinvoke) {
356 const char *exc_class, *exc_arg;
359 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
361 g_assert (exc_class);
362 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
368 if (delegate->target) {
369 /* Produce a location which can be embedded in JITted code */
370 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
373 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
375 delegate->delegate_trampoline = mono_compile_method (wrapper);
377 // Add the delegate to the delegate hash table
378 delegate_hash_table_add (delegate);
380 /* when the object is collected, collect the dynamic method, too */
381 mono_object_register_finalizer ((MonoObject*)delegate, &error);
382 if (!mono_error_ok (&error)) {
383 mono_error_set_pending_exception (&error);
387 return delegate->delegate_trampoline;
391 * this hash table maps from a delegate trampoline object to a weak reference
392 * of the delegate. As an optimizations with a non-moving GC we store the
393 * object pointer itself, otherwise we use a GC handle.
395 static GHashTable *delegate_hash_table;
398 delegate_hash_table_new (void) {
399 return g_hash_table_new (NULL, NULL);
403 delegate_hash_table_remove (MonoDelegate *d)
405 guint32 gchandle = 0;
407 mono_marshal_lock ();
408 if (delegate_hash_table == NULL)
409 delegate_hash_table = delegate_hash_table_new ();
410 if (mono_gc_is_moving ())
411 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
412 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
413 mono_marshal_unlock ();
414 if (gchandle && mono_gc_is_moving ())
415 mono_gchandle_free (gchandle);
419 delegate_hash_table_add (MonoDelegate *d)
422 guint32 old_gchandle;
424 mono_marshal_lock ();
425 if (delegate_hash_table == NULL)
426 delegate_hash_table = delegate_hash_table_new ();
427 if (mono_gc_is_moving ()) {
428 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
429 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
430 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
432 mono_gchandle_free (old_gchandle);
434 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
436 mono_marshal_unlock ();
440 * mono_marshal_use_aot_wrappers:
442 * Instructs this module to use AOT compatible wrappers.
445 mono_marshal_use_aot_wrappers (gboolean use)
447 use_aot_wrappers = use;
451 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
453 MonoCustomAttrInfo *cinfo;
454 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
456 /* The attribute is only available in Net 2.0 */
457 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
459 * The pinvoke attributes are stored in a real custom attribute so we have to
462 cinfo = mono_custom_attrs_from_class (klass);
463 if (cinfo && !mono_runtime_get_no_exec ()) {
465 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
467 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
469 if (!mono_error_ok (&error)) {
470 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
471 mono_error_cleanup (&error);
475 mono_custom_attrs_free (cinfo);
480 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
482 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
491 mono_marshal_lock ();
492 if (delegate_hash_table == NULL)
493 delegate_hash_table = delegate_hash_table_new ();
495 if (mono_gc_is_moving ()) {
496 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
497 mono_marshal_unlock ();
499 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
503 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
504 mono_marshal_unlock ();
507 /* This is a native function, so construct a delegate for it */
508 MonoMethodSignature *sig;
510 MonoMarshalSpec **mspecs;
511 MonoMethod *invoke = mono_get_delegate_invoke (klass);
512 MonoMethodPInvoke piinfo;
513 MonoObject *this_obj;
516 if (use_aot_wrappers) {
517 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
518 this_obj = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
520 memset (&piinfo, 0, sizeof (piinfo));
521 parse_unmanaged_function_pointer_attr (klass, &piinfo);
523 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
524 mono_method_get_marshal_info (invoke, mspecs);
525 /* Freed below so don't alloc from mempool */
526 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
529 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
532 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
534 mono_metadata_free_marshal_spec (mspecs [i]);
539 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
540 if (!mono_error_ok (&error)) {
541 mono_error_set_pending_exception (&error);
544 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, mono_compile_method (wrapper), wrapper);
547 if (d->object.vtable->domain != mono_domain_get ()) {
548 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
556 mono_delegate_free_ftnptr (MonoDelegate *delegate)
561 delegate_hash_table_remove (delegate);
563 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
565 if (!delegate->target) {
566 /* The wrapper method is shared between delegates -> no need to free it */
575 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
578 method = mono_jit_info_get_method (ji);
579 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
581 /*the target gchandle is the first entry after size and the wrapper itself.*/
582 gchandle = GPOINTER_TO_UINT (method_data [2]);
585 mono_gchandle_free (gchandle);
587 mono_runtime_free_method (mono_object_domain (delegate), method);
592 mono_string_from_byvalstr (const char *data, int max_len)
594 MonoDomain *domain = mono_domain_get ();
600 while (len < max_len - 1 && data [len])
603 return mono_string_new_len (domain, data, len);
606 /* This is a JIT icall, it sets the pending exception and return NULL on error */
608 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
611 MonoString *res = NULL;
612 MonoDomain *domain = mono_domain_get ();
618 while (data [len]) len++;
620 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
621 if (!mono_error_ok (&error)) {
622 mono_error_set_pending_exception (&error);
629 mono_array_to_savearray (MonoArray *array)
634 g_assert_not_reached ();
639 mono_array_to_lparray (MonoArray *array)
642 gpointer *nativeArray = NULL;
643 int nativeArraySize = 0;
653 klass = array->obj.vtable->klass;
655 switch (klass->element_class->byval_arg.type) {
657 g_assert_not_reached ();
659 case MONO_TYPE_CLASS:
660 nativeArraySize = array->max_length;
661 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
662 for(i = 0; i < nativeArraySize; ++i)
663 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
666 case MONO_TYPE_BOOLEAN:
679 case MONO_TYPE_VALUETYPE:
683 case MONO_TYPE_GENERICINST:
684 case MONO_TYPE_OBJECT:
685 case MONO_TYPE_ARRAY:
686 case MONO_TYPE_SZARRAY:
687 case MONO_TYPE_STRING:
689 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
690 g_assert_not_reached ();
693 return array->vector;
697 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
708 klass = array->obj.vtable->klass;
710 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
711 for(i = 0; i < array->max_length; ++i)
712 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
719 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
721 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
723 if (elclass == mono_defaults.byte_class) {
724 GError *error = NULL;
728 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
731 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
735 g_error_free (error);
738 g_assert_not_reached ();
742 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
744 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
747 /* This is a JIT icall, it sets the pending exception and returns on error */
749 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
751 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
753 if (elclass == mono_defaults.byte_class) {
755 GError *error = NULL;
757 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
759 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
760 g_error_free (error);
764 memcpy (native_arr, as, MIN (strlen (as), elnum));
767 g_assert_not_reached ();
772 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
774 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
777 static MonoStringBuilder *
778 mono_string_builder_new (int starting_string_length)
780 static MonoClass *string_builder_class;
781 static MonoMethod *sb_ctor;
782 static void *args [1];
785 int initial_len = starting_string_length;
791 MonoMethodDesc *desc;
794 string_builder_class = mono_class_get_string_builder_class ();
795 g_assert (string_builder_class);
796 desc = mono_method_desc_new (":.ctor(int)", FALSE);
797 m = mono_method_desc_search_in_class (desc, string_builder_class);
799 mono_method_desc_free (desc);
800 mono_memory_barrier ();
804 // We make a new array in the _to_builder function, so this
805 // array will always be garbage collected.
806 args [0] = &initial_len;
808 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
809 mono_error_assert_ok (&error);
812 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
813 g_assert (exc == NULL);
814 mono_error_assert_ok (&error);
816 g_assert (sb->chunkChars->max_length >= initial_len);
822 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
824 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
825 gunichar2 *charSrc = (gunichar2 *)text;
826 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
828 sb->chunkLength = string_len;
834 mono_string_utf16_to_builder2 (gunichar2 *text)
840 for (len = 0; text [len] != 0; ++len);
842 MonoStringBuilder *sb = mono_string_builder_new (len);
843 mono_string_utf16_to_builder (sb, text);
849 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
854 int len = strlen (text);
855 if (len > mono_string_builder_capacity (sb))
856 len = mono_string_builder_capacity (sb);
858 GError *error = NULL;
860 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
863 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
864 mono_string_utf16_to_builder_copy (sb, ut, copied);
866 g_error_free (error);
872 mono_string_utf8_to_builder2 (char *text)
877 int len = strlen (text);
878 MonoStringBuilder *sb = mono_string_builder_new (len);
879 mono_string_utf8_to_builder (sb, text);
886 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
892 for (len = 0; text [len] != 0; ++len);
894 if (len > mono_string_builder_capacity (sb))
895 len = mono_string_builder_capacity (sb);
897 mono_string_utf16_to_builder_copy (sb, text, len);
901 * mono_string_builder_to_utf8:
902 * @sb: the string builder
904 * Converts to utf8 the contents of the MonoStringBuilder.
906 * Returns: a utf8 string with the contents of the StringBuilder.
908 * The return value must be released with g_free.
910 * This is a JIT icall, it sets the pending exception and returns NULL on error.
913 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
916 GError *gerror = NULL;
921 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
923 guint str_len = mono_string_builder_string_length (sb);
925 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
928 g_error_free (gerror);
930 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
933 guint len = mono_string_builder_capacity (sb) + 1;
934 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
935 if (!mono_error_ok (&error)) {
938 mono_error_set_pending_exception (&error);
942 g_assert (str_len < len);
943 memcpy (res, tmp, str_len * sizeof (gchar));
953 * mono_string_builder_to_utf16:
954 * @sb: the string builder
956 * Converts to utf16 the contents of the MonoStringBuilder.
958 * Returns: a utf16 string with the contents of the StringBuilder.
960 * The return value must not be freed.
961 * This is a JIT icall, it sets the pending exception and returns NULL on error.
964 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
971 g_assert (sb->chunkChars);
973 guint len = mono_string_builder_capacity (sb);
978 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
979 if (!mono_error_ok (&error)) {
980 mono_error_set_pending_exception (&error);
989 MonoStringBuilder* chunk = sb;
991 if (chunk->chunkLength > 0) {
992 // Check that we will not overrun our boundaries.
993 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
995 if (chunk->chunkLength <= len) {
996 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
998 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1001 len -= chunk->chunkLength;
1003 chunk = chunk->chunkPrevious;
1004 } while (chunk != NULL);
1009 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1011 mono_string_to_lpstr (MonoString *s)
1016 GError *error = NULL;
1022 as = CoTaskMemAlloc (1);
1027 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1029 MonoException *exc = mono_get_exception_argument ("string", error->message);
1030 g_error_free (error);
1031 mono_set_pending_exception (exc);
1034 as = CoTaskMemAlloc (len + 1);
1035 memcpy (as, tmp, len + 1);
1040 return mono_string_to_utf8 (s);
1045 mono_string_to_ansibstr (MonoString *string_obj)
1047 g_error ("UnmanagedMarshal.BStr is not implemented.");
1052 * mono_string_to_byvalstr:
1053 * @dst: Where to store the null-terminated utf8 decoded string.
1054 * @src: the MonoString to copy.
1055 * @size: the maximum number of bytes to copy.
1057 * Copies the MonoString pointed to by @src as a utf8 string
1058 * into @dst, it copies at most @size bytes into the destination.
1061 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1066 g_assert (dst != NULL);
1067 g_assert (size > 0);
1069 memset (dst, 0, size);
1073 s = mono_string_to_utf8 (src);
1074 len = MIN (size, strlen (s));
1077 memcpy (dst, s, len);
1082 * mono_string_to_byvalwstr:
1083 * @dst: Where to store the null-terminated utf16 decoded string.
1084 * @src: the MonoString to copy.
1085 * @size: the maximum number of bytes to copy.
1087 * Copies the MonoString pointed to by @src as a utf16 string into
1088 * @dst, it copies at most @size bytes into the destination (including
1089 * a terminating 16-bit zero terminator).
1092 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1096 g_assert (dst != NULL);
1097 g_assert (size > 1);
1100 memset (dst, 0, size * 2);
1104 len = MIN (size, (mono_string_length (src)));
1105 memcpy (dst, mono_string_chars (src), size * 2);
1106 if (size <= mono_string_length (src))
1108 *((gunichar2 *) dst + len) = 0;
1112 mono_string_new_len_wrapper (const char *text, guint length)
1114 return mono_string_new_len (mono_domain_get (), text, length);
1120 * mono_mb_emit_exception_marshal_directive:
1122 * This function assumes ownership of MSG, which should be malloc-ed.
1125 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1130 s = mono_image_strdup (mb->method->klass->image, msg);
1135 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1138 #endif /* !DISABLE_JIT */
1141 mono_type_to_ldind (MonoType *type)
1147 switch (type->type) {
1149 return CEE_LDIND_I1;
1151 case MONO_TYPE_BOOLEAN:
1152 return CEE_LDIND_U1;
1154 return CEE_LDIND_I2;
1156 case MONO_TYPE_CHAR:
1157 return CEE_LDIND_U2;
1159 return CEE_LDIND_I4;
1161 return CEE_LDIND_U4;
1165 case MONO_TYPE_FNPTR:
1167 case MONO_TYPE_CLASS:
1168 case MONO_TYPE_STRING:
1169 case MONO_TYPE_OBJECT:
1170 case MONO_TYPE_SZARRAY:
1171 case MONO_TYPE_ARRAY:
1172 return CEE_LDIND_REF;
1175 return CEE_LDIND_I8;
1177 return CEE_LDIND_R4;
1179 return CEE_LDIND_R8;
1180 case MONO_TYPE_VALUETYPE:
1181 if (type->data.klass->enumtype) {
1182 type = mono_class_enum_basetype (type->data.klass);
1186 case MONO_TYPE_TYPEDBYREF:
1188 case MONO_TYPE_GENERICINST:
1189 type = &type->data.generic_class->container_class->byval_arg;
1192 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1198 mono_type_to_stind (MonoType *type)
1204 switch (type->type) {
1207 case MONO_TYPE_BOOLEAN:
1208 return CEE_STIND_I1;
1211 case MONO_TYPE_CHAR:
1212 return CEE_STIND_I2;
1215 return CEE_STIND_I4;
1219 case MONO_TYPE_FNPTR:
1221 case MONO_TYPE_CLASS:
1222 case MONO_TYPE_STRING:
1223 case MONO_TYPE_OBJECT:
1224 case MONO_TYPE_SZARRAY:
1225 case MONO_TYPE_ARRAY:
1226 return CEE_STIND_REF;
1229 return CEE_STIND_I8;
1231 return CEE_STIND_R4;
1233 return CEE_STIND_R8;
1234 case MONO_TYPE_VALUETYPE:
1235 if (type->data.klass->enumtype) {
1236 type = mono_class_enum_basetype (type->data.klass);
1240 case MONO_TYPE_TYPEDBYREF:
1242 case MONO_TYPE_GENERICINST:
1243 type = &type->data.generic_class->container_class->byval_arg;
1246 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1254 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1257 case MONO_MARSHAL_CONV_BOOL_I4:
1258 mono_mb_emit_ldloc (mb, 1);
1259 mono_mb_emit_ldloc (mb, 0);
1260 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1261 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1262 mono_mb_emit_byte (mb, 3);
1263 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1264 mono_mb_emit_byte (mb, CEE_BR_S);
1265 mono_mb_emit_byte (mb, 1);
1266 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1267 mono_mb_emit_byte (mb, CEE_STIND_I1);
1269 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1270 mono_mb_emit_ldloc (mb, 1);
1271 mono_mb_emit_ldloc (mb, 0);
1272 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1273 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1274 mono_mb_emit_byte (mb, 3);
1275 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1276 mono_mb_emit_byte (mb, CEE_BR_S);
1277 mono_mb_emit_byte (mb, 1);
1278 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1279 mono_mb_emit_byte (mb, CEE_STIND_I1);
1281 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1282 MonoClass *eklass = NULL;
1285 if (type->type == MONO_TYPE_SZARRAY) {
1286 eklass = type->data.klass;
1288 g_assert_not_reached ();
1291 esize = mono_class_native_size (eklass, NULL);
1293 /* create a new array */
1294 mono_mb_emit_ldloc (mb, 1);
1295 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1296 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1297 mono_mb_emit_byte (mb, CEE_STIND_I);
1299 if (eklass->blittable) {
1300 /* copy the elements */
1301 mono_mb_emit_ldloc (mb, 1);
1302 mono_mb_emit_byte (mb, CEE_LDIND_I);
1303 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1304 mono_mb_emit_byte (mb, CEE_ADD);
1305 mono_mb_emit_ldloc (mb, 0);
1306 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1307 mono_mb_emit_byte (mb, CEE_PREFIX1);
1308 mono_mb_emit_byte (mb, CEE_CPBLK);
1311 int array_var, src_var, dst_var, index_var;
1312 guint32 label2, label3;
1314 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1315 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1316 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1319 mono_mb_emit_ldloc (mb, 1);
1320 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1321 mono_mb_emit_stloc (mb, array_var);
1323 /* save the old src pointer */
1324 mono_mb_emit_ldloc (mb, 0);
1325 mono_mb_emit_stloc (mb, src_var);
1326 /* save the old dst pointer */
1327 mono_mb_emit_ldloc (mb, 1);
1328 mono_mb_emit_stloc (mb, dst_var);
1330 /* Emit marshalling loop */
1331 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1332 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1333 mono_mb_emit_stloc (mb, index_var);
1336 label2 = mono_mb_get_label (mb);
1337 mono_mb_emit_ldloc (mb, index_var);
1338 mono_mb_emit_ldloc (mb, array_var);
1339 mono_mb_emit_byte (mb, CEE_LDLEN);
1340 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1342 /* src is already set */
1345 mono_mb_emit_ldloc (mb, array_var);
1346 mono_mb_emit_ldloc (mb, index_var);
1347 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1348 mono_mb_emit_stloc (mb, 1);
1350 /* Do the conversion */
1351 emit_struct_conv (mb, eklass, TRUE);
1354 mono_mb_emit_add_to_local (mb, index_var, 1);
1356 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1358 mono_mb_patch_branch (mb, label3);
1360 /* restore the old src pointer */
1361 mono_mb_emit_ldloc (mb, src_var);
1362 mono_mb_emit_stloc (mb, 0);
1363 /* restore the old dst pointer */
1364 mono_mb_emit_ldloc (mb, dst_var);
1365 mono_mb_emit_stloc (mb, 1);
1369 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1370 MonoClass *eclass = mono_defaults.char_class;
1372 /* create a new array */
1373 mono_mb_emit_ldloc (mb, 1);
1374 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1375 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1376 mono_mb_emit_byte (mb, CEE_STIND_REF);
1378 mono_mb_emit_ldloc (mb, 1);
1379 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1380 mono_mb_emit_ldloc (mb, 0);
1381 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1382 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1385 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1386 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1387 mono_mb_emit_ldloc (mb, 1);
1388 mono_mb_emit_ldloc (mb, 0);
1389 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1390 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1392 mono_mb_emit_ldloc (mb, 1);
1393 mono_mb_emit_ldloc (mb, 0);
1394 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1396 mono_mb_emit_byte (mb, CEE_STIND_REF);
1398 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1399 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1400 mono_mb_emit_ldloc (mb, 1);
1401 mono_mb_emit_ldloc (mb, 0);
1402 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1403 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1405 mono_mb_emit_ldloc (mb, 1);
1406 mono_mb_emit_ldloc (mb, 0);
1407 mono_mb_emit_icall (mb, mono_string_from_utf16);
1409 mono_mb_emit_byte (mb, CEE_STIND_REF);
1411 case MONO_MARSHAL_CONV_STR_LPTSTR:
1412 mono_mb_emit_ldloc (mb, 1);
1413 mono_mb_emit_ldloc (mb, 0);
1414 mono_mb_emit_byte (mb, CEE_LDIND_I);
1416 mono_mb_emit_icall (mb, mono_string_from_utf16);
1418 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1420 mono_mb_emit_byte (mb, CEE_STIND_REF);
1422 case MONO_MARSHAL_CONV_STR_LPSTR:
1423 mono_mb_emit_ldloc (mb, 1);
1424 mono_mb_emit_ldloc (mb, 0);
1425 mono_mb_emit_byte (mb, CEE_LDIND_I);
1426 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1427 mono_mb_emit_byte (mb, CEE_STIND_REF);
1429 case MONO_MARSHAL_CONV_STR_LPWSTR:
1430 mono_mb_emit_ldloc (mb, 1);
1431 mono_mb_emit_ldloc (mb, 0);
1432 mono_mb_emit_byte (mb, CEE_LDIND_I);
1433 mono_mb_emit_icall (mb, mono_string_from_utf16);
1434 mono_mb_emit_byte (mb, CEE_STIND_REF);
1436 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1437 MonoClass *klass = mono_class_from_mono_type (type);
1438 int src_var, dst_var;
1440 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1441 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1443 /* *dst = new object */
1444 mono_mb_emit_ldloc (mb, 1);
1445 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1446 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1447 mono_mb_emit_byte (mb, CEE_STIND_REF);
1449 /* save the old src pointer */
1450 mono_mb_emit_ldloc (mb, 0);
1451 mono_mb_emit_stloc (mb, src_var);
1452 /* save the old dst pointer */
1453 mono_mb_emit_ldloc (mb, 1);
1454 mono_mb_emit_stloc (mb, dst_var);
1456 /* dst = pointer to newly created object data */
1457 mono_mb_emit_ldloc (mb, 1);
1458 mono_mb_emit_byte (mb, CEE_LDIND_I);
1459 mono_mb_emit_icon (mb, sizeof (MonoObject));
1460 mono_mb_emit_byte (mb, CEE_ADD);
1461 mono_mb_emit_stloc (mb, 1);
1463 emit_struct_conv (mb, klass, TRUE);
1465 /* restore the old src pointer */
1466 mono_mb_emit_ldloc (mb, src_var);
1467 mono_mb_emit_stloc (mb, 0);
1468 /* restore the old dst pointer */
1469 mono_mb_emit_ldloc (mb, dst_var);
1470 mono_mb_emit_stloc (mb, 1);
1473 case MONO_MARSHAL_CONV_DEL_FTN: {
1474 MonoClass *klass = mono_class_from_mono_type (type);
1476 mono_mb_emit_ldloc (mb, 1);
1477 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1478 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1479 mono_mb_emit_ldloc (mb, 0);
1480 mono_mb_emit_byte (mb, CEE_LDIND_I);
1481 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1482 mono_mb_emit_byte (mb, CEE_STIND_REF);
1485 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1486 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1490 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1491 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1492 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1493 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1495 #endif /* DISABLE_COM */
1497 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1499 * Passing SafeHandles as ref does not allow the unmanaged code
1500 * to change the SafeHandle value. If the value is changed,
1501 * we should issue a diagnostic exception (NotSupportedException)
1502 * that informs the user that changes to handles in unmanaged code
1505 * Since we currently have no access to the original
1506 * SafeHandle that was used during the marshalling,
1507 * for now we just ignore this, and ignore/discard any
1508 * changes that might have happened to the handle.
1513 case MONO_MARSHAL_CONV_HANDLEREF: {
1515 * Passing HandleRefs in a struct that is ref()ed does not
1516 * copy the values back to the HandleRef
1521 case MONO_MARSHAL_CONV_STR_BSTR:
1522 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1523 case MONO_MARSHAL_CONV_STR_TBSTR:
1524 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1526 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1528 mono_mb_emit_exception_marshal_directive (mb, msg);
1535 conv_to_icall (MonoMarshalConv conv)
1538 case MONO_MARSHAL_CONV_STR_LPWSTR:
1539 return mono_marshal_string_to_utf16;
1540 case MONO_MARSHAL_CONV_LPWSTR_STR:
1541 return mono_string_from_utf16;
1542 case MONO_MARSHAL_CONV_LPTSTR_STR:
1543 return mono_string_new_wrapper;
1544 case MONO_MARSHAL_CONV_LPSTR_STR:
1545 return mono_string_new_wrapper;
1546 case MONO_MARSHAL_CONV_STR_LPTSTR:
1548 return mono_marshal_string_to_utf16;
1550 return mono_string_to_lpstr;
1552 case MONO_MARSHAL_CONV_STR_LPSTR:
1553 return mono_string_to_lpstr;
1554 case MONO_MARSHAL_CONV_STR_BSTR:
1555 return mono_string_to_bstr;
1556 case MONO_MARSHAL_CONV_BSTR_STR:
1557 return mono_string_from_bstr;
1558 case MONO_MARSHAL_CONV_STR_TBSTR:
1559 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1560 return mono_string_to_ansibstr;
1561 case MONO_MARSHAL_CONV_SB_LPSTR:
1562 return mono_string_builder_to_utf8;
1563 case MONO_MARSHAL_CONV_SB_LPTSTR:
1565 return mono_string_builder_to_utf16;
1567 return mono_string_builder_to_utf8;
1569 case MONO_MARSHAL_CONV_SB_LPWSTR:
1570 return mono_string_builder_to_utf16;
1571 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1572 return mono_array_to_savearray;
1573 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1574 return mono_array_to_lparray;
1575 case MONO_MARSHAL_FREE_LPARRAY:
1576 return mono_free_lparray;
1577 case MONO_MARSHAL_CONV_DEL_FTN:
1578 return mono_delegate_to_ftnptr;
1579 case MONO_MARSHAL_CONV_FTN_DEL:
1580 return mono_ftnptr_to_delegate;
1581 case MONO_MARSHAL_CONV_LPSTR_SB:
1582 return mono_string_utf8_to_builder;
1583 case MONO_MARSHAL_CONV_LPTSTR_SB:
1585 return mono_string_utf16_to_builder;
1587 return mono_string_utf8_to_builder;
1589 case MONO_MARSHAL_CONV_LPWSTR_SB:
1590 return mono_string_utf16_to_builder;
1591 case MONO_MARSHAL_FREE_ARRAY:
1592 return mono_marshal_free_array;
1593 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1594 return mono_string_to_byvalstr;
1595 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1596 return mono_string_to_byvalwstr;
1598 g_assert_not_reached ();
1605 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1610 case MONO_MARSHAL_CONV_BOOL_I4:
1611 mono_mb_emit_ldloc (mb, 1);
1612 mono_mb_emit_ldloc (mb, 0);
1613 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1614 mono_mb_emit_byte (mb, CEE_STIND_I4);
1616 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1617 mono_mb_emit_ldloc (mb, 1);
1618 mono_mb_emit_ldloc (mb, 0);
1619 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1620 mono_mb_emit_byte (mb, CEE_NEG);
1621 mono_mb_emit_byte (mb, CEE_STIND_I2);
1623 case MONO_MARSHAL_CONV_STR_LPWSTR:
1624 case MONO_MARSHAL_CONV_STR_LPSTR:
1625 case MONO_MARSHAL_CONV_STR_LPTSTR:
1626 case MONO_MARSHAL_CONV_STR_BSTR:
1627 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1628 case MONO_MARSHAL_CONV_STR_TBSTR: {
1631 /* free space if free == true */
1632 mono_mb_emit_ldloc (mb, 2);
1633 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1634 mono_mb_emit_ldloc (mb, 1);
1635 mono_mb_emit_byte (mb, CEE_LDIND_I);
1636 mono_mb_emit_icall (mb, g_free);
1637 mono_mb_patch_short_branch (mb, pos);
1639 mono_mb_emit_ldloc (mb, 1);
1640 mono_mb_emit_ldloc (mb, 0);
1641 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1642 mono_mb_emit_icall (mb, conv_to_icall (conv));
1643 mono_mb_emit_byte (mb, CEE_STIND_I);
1646 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1647 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1648 case MONO_MARSHAL_CONV_DEL_FTN:
1649 mono_mb_emit_ldloc (mb, 1);
1650 mono_mb_emit_ldloc (mb, 0);
1651 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1652 mono_mb_emit_icall (mb, conv_to_icall (conv));
1653 mono_mb_emit_byte (mb, CEE_STIND_I);
1655 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1656 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1659 mono_mb_emit_ldloc (mb, 1); /* dst */
1660 mono_mb_emit_ldloc (mb, 0);
1661 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1662 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1663 mono_mb_emit_icall (mb, conv_to_icall (conv));
1666 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1667 MonoClass *eklass = NULL;
1670 if (type->type == MONO_TYPE_SZARRAY) {
1671 eklass = type->data.klass;
1673 g_assert_not_reached ();
1676 if (eklass->valuetype)
1677 esize = mono_class_native_size (eklass, NULL);
1679 esize = sizeof (gpointer);
1681 mono_mb_emit_ldloc (mb, 0);
1682 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1683 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1685 if (eklass->blittable) {
1686 mono_mb_emit_ldloc (mb, 1);
1687 mono_mb_emit_ldloc (mb, 0);
1688 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1689 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1690 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1691 mono_mb_emit_byte (mb, CEE_PREFIX1);
1692 mono_mb_emit_byte (mb, CEE_CPBLK);
1694 int array_var, src_var, dst_var, index_var;
1695 guint32 label2, label3;
1697 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1698 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1699 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1702 mono_mb_emit_ldloc (mb, 0);
1703 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1704 mono_mb_emit_stloc (mb, array_var);
1706 /* save the old src pointer */
1707 mono_mb_emit_ldloc (mb, 0);
1708 mono_mb_emit_stloc (mb, src_var);
1709 /* save the old dst pointer */
1710 mono_mb_emit_ldloc (mb, 1);
1711 mono_mb_emit_stloc (mb, dst_var);
1713 /* Emit marshalling loop */
1714 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1715 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1716 mono_mb_emit_stloc (mb, index_var);
1719 label2 = mono_mb_get_label (mb);
1720 mono_mb_emit_ldloc (mb, index_var);
1721 mono_mb_emit_ldloc (mb, array_var);
1722 mono_mb_emit_byte (mb, CEE_LDLEN);
1723 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1726 mono_mb_emit_ldloc (mb, array_var);
1727 mono_mb_emit_ldloc (mb, index_var);
1728 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1729 mono_mb_emit_stloc (mb, 0);
1731 /* dst is already set */
1733 /* Do the conversion */
1734 emit_struct_conv (mb, eklass, FALSE);
1737 mono_mb_emit_add_to_local (mb, index_var, 1);
1739 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1741 mono_mb_patch_branch (mb, label3);
1743 /* restore the old src pointer */
1744 mono_mb_emit_ldloc (mb, src_var);
1745 mono_mb_emit_stloc (mb, 0);
1746 /* restore the old dst pointer */
1747 mono_mb_emit_ldloc (mb, dst_var);
1748 mono_mb_emit_stloc (mb, 1);
1751 mono_mb_patch_branch (mb, pos);
1754 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1755 mono_mb_emit_ldloc (mb, 0);
1756 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1757 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1759 mono_mb_emit_ldloc (mb, 1);
1760 mono_mb_emit_ldloc (mb, 0);
1761 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1762 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1763 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1764 mono_mb_patch_short_branch (mb, pos);
1767 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1768 int src_var, dst_var;
1770 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1771 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1773 mono_mb_emit_ldloc (mb, 0);
1774 mono_mb_emit_byte (mb, CEE_LDIND_I);
1775 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1777 /* save the old src pointer */
1778 mono_mb_emit_ldloc (mb, 0);
1779 mono_mb_emit_stloc (mb, src_var);
1780 /* save the old dst pointer */
1781 mono_mb_emit_ldloc (mb, 1);
1782 mono_mb_emit_stloc (mb, dst_var);
1784 /* src = pointer to object data */
1785 mono_mb_emit_ldloc (mb, 0);
1786 mono_mb_emit_byte (mb, CEE_LDIND_I);
1787 mono_mb_emit_icon (mb, sizeof (MonoObject));
1788 mono_mb_emit_byte (mb, CEE_ADD);
1789 mono_mb_emit_stloc (mb, 0);
1791 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1793 /* restore the old src pointer */
1794 mono_mb_emit_ldloc (mb, src_var);
1795 mono_mb_emit_stloc (mb, 0);
1796 /* restore the old dst pointer */
1797 mono_mb_emit_ldloc (mb, dst_var);
1798 mono_mb_emit_stloc (mb, 1);
1800 mono_mb_patch_branch (mb, pos);
1805 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1806 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1807 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1808 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1810 #endif /* DISABLE_COM */
1812 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1815 mono_mb_emit_ldloc (mb, 0);
1816 mono_mb_emit_byte (mb, CEE_LDIND_I);
1817 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1818 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1819 mono_mb_patch_branch (mb, pos);
1821 /* Pull the handle field from SafeHandle */
1822 mono_mb_emit_ldloc (mb, 1);
1823 mono_mb_emit_ldloc (mb, 0);
1824 mono_mb_emit_byte (mb, CEE_LDIND_I);
1825 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1826 mono_mb_emit_byte (mb, CEE_LDIND_I);
1827 mono_mb_emit_byte (mb, CEE_STIND_I);
1831 case MONO_MARSHAL_CONV_HANDLEREF: {
1832 mono_mb_emit_ldloc (mb, 1);
1833 mono_mb_emit_ldloc (mb, 0);
1834 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1835 mono_mb_emit_byte (mb, CEE_ADD);
1836 mono_mb_emit_byte (mb, CEE_LDIND_I);
1837 mono_mb_emit_byte (mb, CEE_STIND_I);
1842 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1843 MonoException *exc = mono_get_exception_not_implemented (msg);
1844 g_warning ("%s", msg);
1846 mono_raise_exception (exc);
1852 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1853 MonoMarshalNative string_encoding)
1855 MonoMarshalType *info;
1859 emit_struct_conv(mb, klass->parent, to_object);
1861 info = mono_marshal_load_type_info (klass);
1863 if (info->native_size == 0)
1866 if (klass->blittable) {
1867 int msize = mono_class_value_size (klass, NULL);
1868 g_assert (msize == info->native_size);
1869 mono_mb_emit_ldloc (mb, 1);
1870 mono_mb_emit_ldloc (mb, 0);
1871 mono_mb_emit_icon (mb, msize);
1872 mono_mb_emit_byte (mb, CEE_PREFIX1);
1873 mono_mb_emit_byte (mb, CEE_CPBLK);
1875 mono_mb_emit_add_to_local (mb, 0, msize);
1876 mono_mb_emit_add_to_local (mb, 1, msize);
1880 if (klass != mono_class_try_get_safehandle_class ()) {
1881 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1882 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1883 mono_type_full_name (&klass->byval_arg));
1884 mono_mb_emit_exception_marshal_directive (mb, msg);
1889 for (i = 0; i < info->num_fields; i++) {
1890 MonoMarshalNative ntype;
1891 MonoMarshalConv conv;
1892 MonoType *ftype = info->fields [i].field->type;
1895 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1897 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1900 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1903 msize = klass->instance_size - info->fields [i].field->offset;
1904 usize = info->native_size - info->fields [i].offset;
1906 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1907 usize = info->fields [i + 1].offset - info->fields [i].offset;
1910 if (klass != mono_class_try_get_safehandle_class ()){
1912 * FIXME: Should really check for usize==0 and msize>0, but we apply
1913 * the layout to the managed structure as well.
1916 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1917 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1918 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1919 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1920 "reference field at the same offset as another field.",
1921 mono_type_full_name (&klass->byval_arg));
1926 case MONO_MARSHAL_CONV_NONE: {
1929 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1930 ftype->type == MONO_TYPE_U) {
1931 mono_mb_emit_ldloc (mb, 1);
1932 mono_mb_emit_ldloc (mb, 0);
1933 mono_mb_emit_byte (mb, CEE_LDIND_I);
1934 mono_mb_emit_byte (mb, CEE_STIND_I);
1945 case MONO_TYPE_BOOLEAN:
1948 case MONO_TYPE_CHAR:
1954 mono_mb_emit_ldloc (mb, 1);
1955 mono_mb_emit_ldloc (mb, 0);
1956 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1958 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1959 mono_mb_emit_byte (mb, CEE_STIND_I2);
1961 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1962 mono_mb_emit_byte (mb, CEE_STIND_I1);
1965 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1966 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1969 case MONO_TYPE_VALUETYPE: {
1970 int src_var, dst_var;
1972 if (ftype->data.klass->enumtype) {
1973 ftype = mono_class_enum_basetype (ftype->data.klass);
1977 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1978 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1980 /* save the old src pointer */
1981 mono_mb_emit_ldloc (mb, 0);
1982 mono_mb_emit_stloc (mb, src_var);
1983 /* save the old dst pointer */
1984 mono_mb_emit_ldloc (mb, 1);
1985 mono_mb_emit_stloc (mb, dst_var);
1987 emit_struct_conv (mb, ftype->data.klass, to_object);
1989 /* restore the old src pointer */
1990 mono_mb_emit_ldloc (mb, src_var);
1991 mono_mb_emit_stloc (mb, 0);
1992 /* restore the old dst pointer */
1993 mono_mb_emit_ldloc (mb, dst_var);
1994 mono_mb_emit_stloc (mb, 1);
1997 case MONO_TYPE_OBJECT: {
2000 static MonoMethod *variant_clear = NULL;
2001 static MonoMethod *get_object_for_native_variant = NULL;
2004 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2005 if (!get_object_for_native_variant)
2006 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2007 mono_mb_emit_ldloc (mb, 1);
2008 mono_mb_emit_ldloc (mb, 0);
2009 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2010 mono_mb_emit_byte (mb, CEE_STIND_REF);
2012 mono_mb_emit_ldloc (mb, 0);
2013 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2016 static MonoMethod *get_native_variant_for_object = NULL;
2018 if (!get_native_variant_for_object)
2019 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2021 mono_mb_emit_ldloc (mb, 0);
2022 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2023 mono_mb_emit_ldloc (mb, 1);
2024 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2027 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2028 mono_mb_emit_exception_marshal_directive (mb, msg);
2034 g_warning ("marshaling type %02x not implemented", ftype->type);
2035 g_assert_not_reached ();
2040 int src_var, dst_var;
2042 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2043 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2045 /* save the old src pointer */
2046 mono_mb_emit_ldloc (mb, 0);
2047 mono_mb_emit_stloc (mb, src_var);
2048 /* save the old dst pointer */
2049 mono_mb_emit_ldloc (mb, 1);
2050 mono_mb_emit_stloc (mb, dst_var);
2053 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2055 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2057 /* restore the old src pointer */
2058 mono_mb_emit_ldloc (mb, src_var);
2059 mono_mb_emit_stloc (mb, 0);
2060 /* restore the old dst pointer */
2061 mono_mb_emit_ldloc (mb, dst_var);
2062 mono_mb_emit_stloc (mb, 1);
2067 mono_mb_emit_add_to_local (mb, 0, usize);
2068 mono_mb_emit_add_to_local (mb, 1, msize);
2070 mono_mb_emit_add_to_local (mb, 0, msize);
2071 mono_mb_emit_add_to_local (mb, 1, usize);
2077 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2079 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2083 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2085 /* Call DestroyStructure */
2086 /* FIXME: Only do this if needed */
2087 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2088 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2089 mono_mb_emit_ldloc (mb, struct_var);
2090 mono_mb_emit_icall (mb, mono_struct_delete_old);
2094 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2096 int pos_noabort, pos_noex;
2098 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2099 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2100 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2101 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2103 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2104 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2106 mono_mb_emit_icall (mb, checkpoint_func);
2107 /* Throw the exception returned by the checkpoint function, if any */
2108 mono_mb_emit_byte (mb, CEE_DUP);
2109 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2110 mono_mb_emit_byte (mb, CEE_THROW);
2111 mono_mb_patch_branch (mb, pos_noex);
2112 mono_mb_emit_byte (mb, CEE_POP);
2114 mono_mb_patch_branch (mb, pos_noabort);
2118 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2120 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2123 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2127 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2129 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2133 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2135 emit_thread_interrupt_checkpoint (mb);
2139 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2141 emit_thread_force_interrupt_checkpoint (mb);
2144 #endif /* DISABLE_JIT */
2146 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2147 static MonoAsyncResult *
2148 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2150 MonoMulticastDelegate *mcast_delegate;
2154 g_assert (delegate);
2155 mcast_delegate = (MonoMulticastDelegate *) delegate;
2156 if (mcast_delegate->delegates != NULL) {
2157 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2161 #ifndef DISABLE_REMOTING
2162 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2163 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2164 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2165 /* If the target is a proxy, make a direct call. Is proxy's work
2166 // to make the call asynchronous.
2168 MonoMethodMessage *msg;
2169 MonoDelegate *async_callback;
2171 MonoAsyncResult *ares;
2173 MonoArray *out_args;
2174 method = delegate->method;
2176 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2177 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2178 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2179 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2180 MONO_OBJECT_SETREF (msg, async_result, ares);
2181 msg->call_type = CallType_BeginInvoke;
2184 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2186 mono_set_pending_exception ((MonoException *) exc);
2192 klass = delegate->object.vtable->klass;
2194 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2196 method = mono_get_delegate_invoke (klass);
2199 return mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params);
2205 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2207 int i, params_var, tmp_var;
2209 /* allocate local (pointer) *params[] */
2210 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2211 /* allocate local (pointer) tmp */
2212 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2214 /* alloate space on stack to store an array of pointers to the arguments */
2215 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2216 mono_mb_emit_byte (mb, CEE_PREFIX1);
2217 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2218 mono_mb_emit_stloc (mb, params_var);
2221 mono_mb_emit_ldloc (mb, params_var);
2222 mono_mb_emit_stloc (mb, tmp_var);
2224 if (save_this && sig->hasthis) {
2225 mono_mb_emit_ldloc (mb, tmp_var);
2226 mono_mb_emit_ldarg_addr (mb, 0);
2227 mono_mb_emit_byte (mb, CEE_STIND_I);
2228 /* tmp = tmp + sizeof (gpointer) */
2229 if (sig->param_count)
2230 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2234 for (i = 0; i < sig->param_count; i++) {
2235 mono_mb_emit_ldloc (mb, tmp_var);
2236 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2237 mono_mb_emit_byte (mb, CEE_STIND_I);
2238 /* tmp = tmp + sizeof (gpointer) */
2239 if (i < (sig->param_count - 1))
2240 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2246 #endif /* DISABLE_JIT */
2249 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2253 GString *res = g_string_new ("");
2256 g_string_append (res, prefix);
2257 g_string_append_c (res, '_');
2260 mono_type_get_desc (res, sig->ret, FALSE);
2263 g_string_append (res, "__this__");
2265 for (i = 0; i < sig->param_count; ++i) {
2266 g_string_append_c (res, '_');
2267 mono_type_get_desc (res, sig->params [i], FALSE);
2270 g_string_free (res, FALSE);
2275 * mono_marshal_get_string_encoding:
2277 * Return the string encoding which should be used for a given parameter.
2279 static MonoMarshalNative
2280 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2282 /* First try the parameter marshal info */
2284 if (spec->native == MONO_NATIVE_LPARRAY) {
2285 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2286 return spec->data.array_data.elem_type;
2289 return spec->native;
2293 return MONO_NATIVE_LPSTR;
2295 /* Then try the method level marshal info */
2296 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2297 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2298 return MONO_NATIVE_LPSTR;
2299 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2300 return MONO_NATIVE_LPWSTR;
2301 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2303 return MONO_NATIVE_LPWSTR;
2305 return MONO_NATIVE_LPSTR;
2308 return MONO_NATIVE_LPSTR;
2312 static MonoMarshalConv
2313 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2315 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2318 case MONO_NATIVE_LPWSTR:
2319 return MONO_MARSHAL_CONV_STR_LPWSTR;
2320 case MONO_NATIVE_LPSTR:
2321 case MONO_NATIVE_VBBYREFSTR:
2322 return MONO_MARSHAL_CONV_STR_LPSTR;
2323 case MONO_NATIVE_LPTSTR:
2324 return MONO_MARSHAL_CONV_STR_LPTSTR;
2325 case MONO_NATIVE_BSTR:
2326 return MONO_MARSHAL_CONV_STR_BSTR;
2328 return (MonoMarshalConv)-1;
2332 static MonoMarshalConv
2333 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2335 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2338 case MONO_NATIVE_LPWSTR:
2339 return MONO_MARSHAL_CONV_SB_LPWSTR;
2341 case MONO_NATIVE_LPSTR:
2342 return MONO_MARSHAL_CONV_SB_LPSTR;
2344 case MONO_NATIVE_LPTSTR:
2345 return MONO_MARSHAL_CONV_SB_LPTSTR;
2348 return (MonoMarshalConv)-1;
2352 static MonoMarshalConv
2353 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2355 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2360 case MONO_NATIVE_LPWSTR:
2362 return MONO_MARSHAL_CONV_LPWSTR_STR;
2363 case MONO_NATIVE_LPSTR:
2364 case MONO_NATIVE_VBBYREFSTR:
2365 return MONO_MARSHAL_CONV_LPSTR_STR;
2366 case MONO_NATIVE_LPTSTR:
2367 return MONO_MARSHAL_CONV_LPTSTR_STR;
2368 case MONO_NATIVE_BSTR:
2369 return MONO_MARSHAL_CONV_BSTR_STR;
2371 return (MonoMarshalConv)-1;
2375 static MonoMarshalConv
2376 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2378 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2383 case MONO_NATIVE_LPWSTR:
2385 * mono_string_builder_to_utf16 does not allocate a
2386 * new buffer, so no need to free it.
2389 return MONO_MARSHAL_CONV_LPWSTR_SB;
2390 case MONO_NATIVE_LPSTR:
2391 return MONO_MARSHAL_CONV_LPSTR_SB;
2393 case MONO_NATIVE_LPTSTR:
2394 return MONO_MARSHAL_CONV_LPTSTR_SB;
2397 return (MonoMarshalConv)-1;
2402 * Return whenever a field of a native structure or an array member needs to
2406 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2408 MonoMarshalNative encoding;
2411 case MONO_TYPE_VALUETYPE:
2412 /* FIXME: Optimize this */
2414 case MONO_TYPE_OBJECT:
2415 case MONO_TYPE_CLASS:
2416 if (t->data.klass == mono_defaults.stringbuilder_class) {
2418 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2422 case MONO_TYPE_STRING:
2423 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2424 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2431 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2434 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2437 mono_marshal_lock ();
2440 g_hash_table_new (hash_func, equal_func);
2441 mono_memory_barrier ();
2444 mono_marshal_unlock ();
2450 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2452 return get_cache (var, hash_func, equal_func);
2456 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2460 mono_marshal_lock ();
2461 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2462 mono_marshal_unlock ();
2469 * Create a MonoMethod from MB, set INFO as wrapper info.
2472 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2473 int max_stack, WrapperInfo *info)
2477 res = mono_mb_create_method (mb, sig, max_stack);
2479 mono_marshal_set_wrapper_info (res, info);
2483 /* Create the method from the builder and place it in the cache */
2485 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2486 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2487 int max_stack, WrapperInfo *info, gboolean *out_found)
2494 mono_marshal_lock ();
2495 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2496 mono_marshal_unlock ();
2499 newm = mono_mb_create_method (mb, sig, max_stack);
2500 mono_marshal_lock ();
2501 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2504 g_hash_table_insert (cache, key, res);
2505 mono_marshal_set_wrapper_info (res, info);
2506 mono_marshal_unlock ();
2510 mono_marshal_unlock ();
2511 mono_free_method (newm);
2519 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2520 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2523 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2527 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2530 int wrapper_type = wrapper->wrapper_type;
2533 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2536 info = mono_marshal_get_wrapper_info (wrapper);
2538 switch (wrapper_type) {
2539 case MONO_WRAPPER_REMOTING_INVOKE:
2540 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2541 case MONO_WRAPPER_XDOMAIN_INVOKE:
2542 m = info->d.remoting.method;
2543 if (wrapper->is_inflated) {
2547 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2548 * contains an uninflated method.
2550 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2551 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2555 case MONO_WRAPPER_SYNCHRONIZED:
2556 m = info->d.synchronized.method;
2557 if (wrapper->is_inflated) {
2560 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2561 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2565 case MONO_WRAPPER_UNBOX:
2566 return info->d.unbox.method;
2567 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2568 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2569 return info->d.managed_to_native.method;
2572 case MONO_WRAPPER_RUNTIME_INVOKE:
2573 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2574 return info->d.runtime_invoke.method;
2583 * mono_marshal_get_wrapper_info:
2585 * Retrieve the WrapperInfo structure associated with WRAPPER.
2588 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2590 g_assert (wrapper->wrapper_type);
2592 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2596 * mono_marshal_set_wrapper_info:
2598 * Set the WrapperInfo structure associated with the wrapper
2599 * method METHOD to INFO.
2602 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2606 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2609 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2614 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2618 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2619 info->subtype = subtype;
2624 * get_wrapper_target_class:
2626 * Return the class where a wrapper method should be placed.
2629 get_wrapper_target_class (MonoImage *image)
2636 * - can't put all wrappers into an mscorlib class, because they reference
2637 * metadata (signature) so they should be put into the same image as the
2638 * method they wrap, so they are unloaded together.
2639 * - putting them into a class with a type initalizer could cause the
2640 * initializer to be executed which can be a problem if the wrappers are
2642 * - putting them into an inflated class can cause problems if the the
2643 * class is deleted because it references an image which is unloaded.
2644 * To avoid these problems, we put the wrappers into the <Module> class of
2647 if (image_is_dynamic (image)) {
2648 klass = ((MonoDynamicImage*)image)->wrappers_type;
2650 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2651 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2659 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2660 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2664 * check_generic_wrapper_cache:
2666 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2667 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2668 * generic method definition.
2671 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2674 MonoMethod *inst, *def;
2675 MonoGenericContext *ctx;
2677 g_assert (orig_method->is_inflated);
2678 ctx = mono_method_get_context (orig_method);
2681 * Look for the instance
2683 res = mono_marshal_find_in_cache (cache, key);
2688 * Look for the definition
2690 def = mono_marshal_find_in_cache (cache, def_key);
2693 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2694 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2696 mono_memory_barrier ();
2697 mono_marshal_lock ();
2698 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2700 g_hash_table_insert (cache, key, inst);
2703 mono_marshal_unlock ();
2710 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2713 MonoMethod *inst, *res;
2716 * We use the same cache for the generic definition and the instances.
2718 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2719 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2720 mono_memory_barrier ();
2721 mono_marshal_lock ();
2722 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2724 g_hash_table_insert (cache, key, inst);
2727 mono_marshal_unlock ();
2732 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2736 MonoMethod *inst, *def;
2739 * Look for the instance
2741 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2746 * Look for the definition
2748 def = mono_marshal_find_in_cache (cache, def_method->klass);
2750 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2751 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2754 mono_memory_barrier ();
2755 mono_marshal_lock ();
2756 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2758 g_hash_table_insert (cache, orig_method->klass, inst);
2761 mono_marshal_unlock ();
2768 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2771 MonoMethod *inst, *res;
2774 * We use the same cache for the generic definition and the instances.
2776 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2777 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2779 mono_memory_barrier ();
2780 mono_marshal_lock ();
2781 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2783 g_hash_table_insert (cache, orig_method->klass, inst);
2786 mono_marshal_unlock ();
2791 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2793 MonoMethodSignature *sig;
2794 MonoMethodBuilder *mb;
2799 MonoGenericContext *ctx = NULL;
2800 MonoMethod *orig_method = NULL;
2802 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2803 !strcmp (method->name, "BeginInvoke"));
2806 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2808 if (method->is_inflated) {
2809 orig_method = method;
2810 ctx = &((MonoMethodInflated*)method)->context;
2811 method = ((MonoMethodInflated*)method)->declaring;
2814 sig = mono_signature_no_pinvoke (method);
2820 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2821 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2825 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2826 (GHashFunc)mono_signature_hash,
2827 (GCompareFunc)mono_metadata_signature_equal);
2828 if ((res = mono_marshal_find_in_cache (cache, sig)))
2832 g_assert (sig->hasthis);
2834 name = mono_signature_to_name (sig, "begin_invoke");
2836 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2838 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2842 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2844 mono_mb_emit_ldarg (mb, 0);
2845 mono_mb_emit_ldloc (mb, params_var);
2846 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2847 mono_mb_emit_byte (mb, CEE_RET);
2852 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2853 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2855 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2862 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2864 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2867 MonoDomain *domain = mono_domain_get ();
2868 MonoAsyncResult *ares;
2869 MonoMethod *method = NULL;
2870 MonoMethodSignature *sig;
2871 MonoMethodMessage *msg;
2872 MonoObject *res, *exc;
2873 MonoArray *out_args;
2876 g_assert (delegate);
2878 if (!delegate->method_info) {
2879 g_assert (delegate->method);
2880 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2881 if (!mono_error_ok (&error)) {
2882 mono_error_set_pending_exception (&error);
2885 MONO_OBJECT_SETREF (delegate, method_info, rm);
2888 if (!delegate->method_info || !delegate->method_info->method)
2889 g_assert_not_reached ();
2891 klass = delegate->object.vtable->klass;
2893 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2894 g_assert (method != NULL);
2896 sig = mono_signature_no_pinvoke (method);
2898 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2900 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2902 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingException", "The async result object is null or of an unexpected type."));
2906 if (ares->async_delegate != (MonoObject*)delegate) {
2907 mono_set_pending_exception (mono_get_exception_invalid_operation (
2908 "The IAsyncResult object provided does not match this delegate."));
2912 #ifndef DISABLE_REMOTING
2913 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2914 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2915 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2916 if (!mono_error_ok (&error)) {
2917 mono_error_set_pending_exception (&error);
2920 mono_message_init (domain, msg, delegate->method_info, NULL);
2921 msg->call_type = CallType_EndInvoke;
2922 MONO_OBJECT_SETREF (msg, async_result, ares);
2923 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2927 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2931 if (((MonoException*)exc)->stack_trace) {
2932 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2934 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2936 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2939 mono_set_pending_exception ((MonoException*)exc);
2942 mono_method_return_message_restore (method, params, out_args);
2949 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2951 MonoType *t = mono_type_get_underlying_type (return_type);
2953 if (return_type->byref)
2954 return_type = &mono_defaults.int_class->byval_arg;
2957 case MONO_TYPE_VOID:
2958 g_assert_not_reached ();
2961 case MONO_TYPE_STRING:
2962 case MONO_TYPE_CLASS:
2963 case MONO_TYPE_OBJECT:
2964 case MONO_TYPE_ARRAY:
2965 case MONO_TYPE_SZARRAY:
2969 case MONO_TYPE_BOOLEAN:
2972 case MONO_TYPE_CHAR:
2982 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2983 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2985 case MONO_TYPE_GENERICINST:
2986 if (!mono_type_generic_inst_is_valuetype (t))
2989 case MONO_TYPE_VALUETYPE: {
2990 MonoClass *klass = mono_class_from_mono_type (return_type);
2991 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2992 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2996 case MONO_TYPE_MVAR: {
2997 MonoClass *klass = mono_class_from_mono_type (return_type);
2998 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3002 g_warning ("type 0x%x not handled", return_type->type);
3003 g_assert_not_reached ();
3006 mono_mb_emit_byte (mb, CEE_RET);
3009 #endif /* DISABLE_JIT */
3012 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3014 MonoMethodSignature *sig;
3015 MonoMethodBuilder *mb;
3020 MonoGenericContext *ctx = NULL;
3021 MonoMethod *orig_method = NULL;
3023 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3024 !strcmp (method->name, "EndInvoke"));
3027 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3029 if (method->is_inflated) {
3030 orig_method = method;
3031 ctx = &((MonoMethodInflated*)method)->context;
3032 method = ((MonoMethodInflated*)method)->declaring;
3035 sig = mono_signature_no_pinvoke (method);
3041 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3042 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3046 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3047 (GHashFunc)mono_signature_hash,
3048 (GCompareFunc)mono_metadata_signature_equal);
3049 if ((res = mono_marshal_find_in_cache (cache, sig)))
3053 g_assert (sig->hasthis);
3055 name = mono_signature_to_name (sig, "end_invoke");
3057 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3059 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3063 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3065 mono_mb_emit_ldarg (mb, 0);
3066 mono_mb_emit_ldloc (mb, params_var);
3067 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3069 if (sig->ret->type == MONO_TYPE_VOID) {
3070 mono_mb_emit_byte (mb, CEE_POP);
3071 mono_mb_emit_byte (mb, CEE_RET);
3073 mono_mb_emit_restore_result (mb, sig->ret);
3078 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3079 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3081 res = mono_mb_create_and_cache (cache, sig,
3082 mb, sig, sig->param_count + 16);
3091 MonoMethodSignature *sig;
3093 } SignaturePointerPair;
3096 signature_pointer_pair_hash (gconstpointer data)
3098 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3100 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3104 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3106 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3107 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3111 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3113 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3115 return pair->pointer == user_data;
3119 free_signature_pointer_pair (SignaturePointerPair *pair)
3125 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3127 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3129 MonoMethodBuilder *mb;
3132 gpointer cache_key = NULL;
3133 SignaturePointerPair key;
3134 SignaturePointerPair *new_key;
3135 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3136 int pos0, pos1, pos2;
3138 MonoClass *target_class = NULL;
3139 gboolean closed_over_null = FALSE;
3140 MonoGenericContext *ctx = NULL;
3141 MonoGenericContainer *container = NULL;
3142 MonoMethod *orig_method = NULL;
3144 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3148 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3149 !strcmp (method->name, "Invoke"));
3151 invoke_sig = sig = mono_signature_no_pinvoke (method);
3154 * If the delegate target is null, and the target method is not static, a virtual
3155 * call is made to that method with the first delegate argument as this. This is
3156 * a non-documented .NET feature.
3159 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3160 if (target_method->is_inflated) {
3161 MonoType *target_type;
3163 g_assert (method->signature->hasthis);
3164 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3165 mono_method_get_context (method));
3166 target_class = mono_class_from_mono_type (target_type);
3168 target_class = target_method->klass;
3171 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3174 if (static_method_with_first_arg_bound) {
3175 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3176 g_assert (!callvirt);
3177 invoke_sig = mono_method_signature (target_method);
3181 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3183 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3184 orig_method = method;
3185 ctx = &((MonoMethodInflated*)method)->context;
3186 method = ((MonoMethodInflated*)method)->declaring;
3188 container = mono_method_get_generic_container (method);
3190 container = method->klass->generic_container;
3191 g_assert (container);
3193 invoke_sig = sig = mono_signature_no_pinvoke (method);
3200 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3201 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3204 cache_key = method->klass;
3205 } else if (static_method_with_first_arg_bound) {
3206 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3207 (GHashFunc)mono_signature_hash,
3208 (GCompareFunc)mono_metadata_signature_equal);
3210 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3212 res = mono_marshal_find_in_cache (cache, invoke_sig);
3215 cache_key = invoke_sig;
3216 } else if (callvirt) {
3217 GHashTable **cache_ptr;
3219 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3221 /* We need to cache the signature+method pair */
3222 mono_marshal_lock ();
3224 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3226 key.sig = invoke_sig;
3227 key.pointer = target_method;
3228 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3229 mono_marshal_unlock ();
3233 // Inflated methods should not be in this cache because it's not stored on the imageset.
3234 g_assert (!method->is_inflated);
3235 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3236 (GHashFunc)mono_signature_hash,
3237 (GCompareFunc)mono_metadata_signature_equal);
3238 res = mono_marshal_find_in_cache (cache, sig);
3244 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3245 static_sig->hasthis = 0;
3246 if (!static_method_with_first_arg_bound)
3247 invoke_sig = static_sig;
3249 if (static_method_with_first_arg_bound)
3250 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3251 else if (closed_over_null)
3252 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3254 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3256 name = mono_signature_to_name (invoke_sig, "invoke");
3258 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3260 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3264 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3266 /* allocate local 0 (object) */
3267 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3268 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3269 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3270 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3271 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3274 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3276 g_assert (sig->hasthis);
3279 * {type: sig->ret} res;
3280 * if (delegates == null) {
3281 * return this.<target> ( args .. );
3283 * int i = 0, len = this.delegates.Length;
3285 * res = this.delegates [i].Invoke ( args .. );
3286 * } while (++i < len);
3291 /* this wrapper can be used in unmanaged-managed transitions */
3292 emit_thread_interrupt_checkpoint (mb);
3294 /* delegates = this.delegates */
3295 mono_mb_emit_ldarg (mb, 0);
3296 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3297 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3298 mono_mb_emit_stloc (mb, local_delegates);
3301 /* if (delegates == null) */
3302 mono_mb_emit_ldloc (mb, local_delegates);
3303 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3305 /* return target.<target_method|method_ptr> ( args .. ); */
3307 /* target = d.target; */
3308 mono_mb_emit_ldarg (mb, 0);
3309 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3310 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3311 mono_mb_emit_stloc (mb, local_target);
3313 /*static methods with bound first arg can have null target and still be bound*/
3314 if (!static_method_with_first_arg_bound) {
3315 /* if target != null */
3316 mono_mb_emit_ldloc (mb, local_target);
3317 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3319 /* then call this->method_ptr nonstatic */
3322 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3324 mono_mb_emit_ldloc (mb, local_target);
3325 for (i = 0; i < sig->param_count; ++i)
3326 mono_mb_emit_ldarg (mb, i + 1);
3327 mono_mb_emit_ldarg (mb, 0);
3328 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3329 mono_mb_emit_byte (mb, CEE_LDIND_I);
3330 mono_mb_emit_ldarg (mb, 0);
3331 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3332 mono_mb_emit_byte (mb, CEE_LDIND_I);
3333 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3334 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3335 mono_mb_emit_byte (mb, CEE_RET);
3338 /* else [target == null] call this->method_ptr static */
3339 mono_mb_patch_branch (mb, pos0);
3343 if (!closed_over_null) {
3344 if (target_class->valuetype) {
3345 mono_mb_emit_ldarg (mb, 1);
3346 for (i = 1; i < sig->param_count; ++i)
3347 mono_mb_emit_ldarg (mb, i + 1);
3348 mono_mb_emit_op (mb, CEE_CALL, target_method);
3350 mono_mb_emit_ldarg (mb, 1);
3351 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3352 for (i = 1; i < sig->param_count; ++i)
3353 mono_mb_emit_ldarg (mb, i + 1);
3354 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3357 mono_mb_emit_byte (mb, CEE_LDNULL);
3358 for (i = 0; i < sig->param_count; ++i)
3359 mono_mb_emit_ldarg (mb, i + 1);
3360 mono_mb_emit_op (mb, CEE_CALL, target_method);
3363 if (static_method_with_first_arg_bound) {
3364 mono_mb_emit_ldloc (mb, local_target);
3365 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3366 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3368 for (i = 0; i < sig->param_count; ++i)
3369 mono_mb_emit_ldarg (mb, i + 1);
3370 mono_mb_emit_ldarg (mb, 0);
3371 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3372 mono_mb_emit_byte (mb, CEE_LDIND_I);
3373 mono_mb_emit_ldarg (mb, 0);
3374 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3375 mono_mb_emit_byte (mb, CEE_LDIND_I);
3376 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3377 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3380 mono_mb_emit_byte (mb, CEE_RET);
3382 /* else [delegates != null] */
3383 mono_mb_patch_branch (mb, pos2);
3385 /* len = delegates.Length; */
3386 mono_mb_emit_ldloc (mb, local_delegates);
3387 mono_mb_emit_byte (mb, CEE_LDLEN);
3388 mono_mb_emit_byte (mb, CEE_CONV_I4);
3389 mono_mb_emit_stloc (mb, local_len);
3392 mono_mb_emit_icon (mb, 0);
3393 mono_mb_emit_stloc (mb, local_i);
3395 pos1 = mono_mb_get_label (mb);
3397 /* d = delegates [i]; */
3398 mono_mb_emit_ldloc (mb, local_delegates);
3399 mono_mb_emit_ldloc (mb, local_i);
3400 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3401 mono_mb_emit_stloc (mb, local_d);
3403 /* res = d.Invoke ( args .. ); */
3404 mono_mb_emit_ldloc (mb, local_d);
3405 for (i = 0; i < sig->param_count; i++)
3406 mono_mb_emit_ldarg (mb, i + 1);
3408 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3411 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3412 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3415 mono_mb_emit_stloc (mb, local_res);
3418 mono_mb_emit_add_to_local (mb, local_i, 1);
3421 mono_mb_emit_ldloc (mb, local_i);
3422 mono_mb_emit_ldloc (mb, local_len);
3423 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3427 mono_mb_emit_ldloc (mb, local_res);
3428 mono_mb_emit_byte (mb, CEE_RET);
3430 mb->skip_visibility = 1;
3431 #endif /* DISABLE_JIT */
3433 info = mono_wrapper_info_create (mb, subtype);
3438 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3439 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3440 } else if (callvirt) {
3441 new_key = g_new0 (SignaturePointerPair, 1);
3444 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3448 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3452 /* mono_method_print_code (res); */
3458 * the returned method invokes all methods in a multicast delegate.
3461 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3463 gboolean callvirt = FALSE;
3464 gboolean static_method_with_first_arg_bound = FALSE;
3465 MonoMethod *target_method = NULL;
3466 MonoMethodSignature *sig;
3468 sig = mono_signature_no_pinvoke (method);
3470 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3472 target_method = del->method;
3475 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3476 static_method_with_first_arg_bound = TRUE;
3477 target_method = del->method;
3480 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3484 MonoMethodSignature *ctor_sig;
3485 MonoMethodSignature *sig;
3488 /* protected by the marshal lock, contains CtorSigPair pointers */
3489 static GSList *strsig_list = NULL;
3491 static MonoMethodSignature *
3492 lookup_string_ctor_signature (MonoMethodSignature *sig)
3494 MonoMethodSignature *callsig;
3498 mono_marshal_lock ();
3500 for (item = strsig_list; item; item = item->next) {
3501 cs = (CtorSigPair *)item->data;
3502 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3503 * because it is lock-free.
3505 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3510 mono_marshal_unlock ();
3514 static MonoMethodSignature *
3515 add_string_ctor_signature (MonoMethod *method)
3517 MonoMethodSignature *callsig;
3520 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3521 callsig->ret = &mono_defaults.string_class->byval_arg;
3522 cs = g_new (CtorSigPair, 1);
3524 cs->ctor_sig = mono_method_signature (method);
3526 mono_marshal_lock ();
3527 strsig_list = g_slist_prepend (strsig_list, cs);
3528 mono_marshal_unlock ();
3533 * mono_marshal_get_string_ctor_signature:
3535 * Return the modified signature used by string ctors (they return the newly created
3538 MonoMethodSignature*
3539 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3541 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3543 sig = add_string_ctor_signature (method);
3549 get_runtime_invoke_type (MonoType *t, gboolean ret)
3552 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3554 /* Can't share this with 'I' as that needs another indirection */
3555 return &mono_defaults.int_class->this_arg;
3558 if (MONO_TYPE_IS_REFERENCE (t))
3559 return &mono_defaults.object_class->byval_arg;
3562 /* The result needs to be boxed */
3567 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3570 return &mono_defaults.sbyte_class->byval_arg;
3572 return &mono_defaults.int16_class->byval_arg;
3574 return &mono_defaults.int32_class->byval_arg;
3577 return &mono_defaults.int64_class->byval_arg;
3578 case MONO_TYPE_BOOLEAN:
3579 return &mono_defaults.byte_class->byval_arg;
3580 case MONO_TYPE_CHAR:
3581 return &mono_defaults.uint16_class->byval_arg;
3583 return &mono_defaults.int_class->byval_arg;
3584 case MONO_TYPE_VALUETYPE:
3585 if (t->data.klass->enumtype) {
3586 t = mono_class_enum_basetype (t->data.klass);
3596 * mono_marshal_get_runtime_invoke_sig:
3598 * Return a common signature used for sharing runtime invoke wrappers.
3600 static MonoMethodSignature*
3601 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3603 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3606 res->generic_param_count = 0;
3607 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3608 for (i = 0; i < res->param_count; ++i)
3609 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3615 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3617 /* Can't share wrappers which return a vtype since it needs to be boxed */
3618 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))
3621 return mono_metadata_signature_equal (sig1, sig2);
3629 * Emit the call to the wrapper method from a runtime invoke wrapper.
3632 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3633 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3635 gboolean virtual_, gboolean need_direct_wrapper)
3637 static MonoString *string_dummy = NULL;
3639 int *tmp_nullable_locals;
3640 gboolean void_ret = FALSE;
3641 gboolean string_ctor = method && method->string_ctor;
3643 /* to make it work with our special string constructors */
3644 if (!string_dummy) {
3645 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3646 string_dummy = mono_string_new_wrapper ("dummy");
3650 g_assert (sig->hasthis);
3651 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3656 if (mono_gc_is_moving ()) {
3657 mono_mb_emit_ptr (mb, &string_dummy);
3658 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3660 mono_mb_emit_ptr (mb, string_dummy);
3663 mono_mb_emit_ldarg (mb, 0);
3667 tmp_nullable_locals = g_new0 (int, sig->param_count);
3669 for (i = 0; i < sig->param_count; i++) {
3670 MonoType *t = sig->params [i];
3673 mono_mb_emit_ldarg (mb, 1);
3675 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3676 mono_mb_emit_byte (mb, CEE_ADD);
3680 mono_mb_emit_byte (mb, CEE_LDIND_I);
3681 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3682 * So to make this work we unbox it to a local variablee and push a reference to that.
3684 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3685 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3687 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3688 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3689 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3694 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3695 type = sig->params [i]->type;
3699 case MONO_TYPE_BOOLEAN:
3703 case MONO_TYPE_CHAR:
3712 mono_mb_emit_byte (mb, CEE_LDIND_I);
3713 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3715 case MONO_TYPE_STRING:
3716 case MONO_TYPE_CLASS:
3717 case MONO_TYPE_ARRAY:
3719 case MONO_TYPE_SZARRAY:
3720 case MONO_TYPE_OBJECT:
3721 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3723 case MONO_TYPE_GENERICINST:
3724 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3725 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3730 case MONO_TYPE_VALUETYPE:
3731 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3732 type = mono_class_enum_basetype (t->data.klass)->type;
3735 mono_mb_emit_byte (mb, CEE_LDIND_I);
3736 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3737 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3738 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3739 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3741 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3745 g_assert_not_reached ();
3750 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3751 } else if (need_direct_wrapper) {
3752 mono_mb_emit_op (mb, CEE_CALL, method);
3754 mono_mb_emit_ldarg (mb, 3);
3755 mono_mb_emit_calli (mb, callsig);
3758 if (sig->ret->byref) {
3760 g_assert_not_reached ();
3763 switch (sig->ret->type) {
3764 case MONO_TYPE_VOID:
3768 case MONO_TYPE_BOOLEAN:
3769 case MONO_TYPE_CHAR:
3782 case MONO_TYPE_VALUETYPE:
3783 case MONO_TYPE_TYPEDBYREF:
3784 case MONO_TYPE_GENERICINST:
3785 /* box value types */
3786 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3788 case MONO_TYPE_STRING:
3789 case MONO_TYPE_CLASS:
3790 case MONO_TYPE_ARRAY:
3791 case MONO_TYPE_SZARRAY:
3792 case MONO_TYPE_OBJECT:
3796 /* The result is an IntPtr */
3797 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3800 g_assert_not_reached ();
3804 mono_mb_emit_stloc (mb, loc_res);
3806 /* Convert back nullable-byref arguments */
3807 for (i = 0; i < sig->param_count; i++) {
3808 MonoType *t = sig->params [i];
3811 * Box the result and put it back into the array, the caller will have
3812 * to obtain it from there.
3814 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3815 mono_mb_emit_ldarg (mb, 1);
3816 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3817 mono_mb_emit_byte (mb, CEE_ADD);
3819 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3820 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3822 mono_mb_emit_byte (mb, CEE_STIND_REF);
3826 g_free (tmp_nullable_locals);
3830 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3831 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3832 gboolean virtual_, gboolean need_direct_wrapper)
3835 MonoExceptionClause *clause;
3836 int loc_res, loc_exc;
3838 /* The wrapper looks like this:
3844 * } catch (Exception e) {
3852 /* allocate local 0 (object) tmp */
3853 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3854 /* allocate local 1 (object) exc */
3855 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3857 /* *exc is assumed to be initialized to NULL by the caller */
3859 mono_mb_emit_byte (mb, CEE_LDARG_2);
3860 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3865 labels [1] = mono_mb_get_label (mb);
3866 emit_thread_force_interrupt_checkpoint (mb);
3867 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3869 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3871 /* Add a try clause around the call */
3872 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3873 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3874 clause->data.catch_class = mono_defaults.exception_class;
3875 clause->try_offset = labels [1];
3876 clause->try_len = mono_mb_get_label (mb) - labels [1];
3878 clause->handler_offset = mono_mb_get_label (mb);
3881 mono_mb_emit_stloc (mb, loc_exc);
3882 mono_mb_emit_byte (mb, CEE_LDARG_2);
3883 mono_mb_emit_ldloc (mb, loc_exc);
3884 mono_mb_emit_byte (mb, CEE_STIND_REF);
3886 mono_mb_emit_branch (mb, CEE_LEAVE);
3888 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3890 mono_mb_set_clauses (mb, 1, clause);
3892 mono_mb_patch_branch (mb, labels [2]);
3893 mono_mb_emit_ldloc (mb, loc_res);
3894 mono_mb_emit_byte (mb, CEE_RET);
3899 mono_mb_patch_branch (mb, labels [0]);
3900 emit_thread_force_interrupt_checkpoint (mb);
3901 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3903 mono_mb_emit_ldloc (mb, 0);
3904 mono_mb_emit_byte (mb, CEE_RET);
3909 * generates IL code for the runtime invoke function
3910 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3912 * we also catch exceptions if exc != null
3913 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3914 * it means that the compiled code for METHOD does not have to be looked up
3915 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3916 * its METHOD argument.
3919 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3921 MonoMethodSignature *sig, *csig, *callsig;
3922 MonoMethodBuilder *mb;
3923 GHashTable *cache = NULL;
3924 MonoClass *target_klass;
3925 MonoMethod *res = NULL;
3926 static MonoMethodSignature *cctor_signature = NULL;
3927 static MonoMethodSignature *finalize_signature = NULL;
3929 const char *param_names [16];
3930 gboolean need_direct_wrapper = FALSE;
3935 if (!cctor_signature) {
3936 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3937 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3939 if (!finalize_signature) {
3940 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3941 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3942 finalize_signature->hasthis = 1;
3946 need_direct_wrapper = TRUE;
3949 * Use a separate cache indexed by methods to speed things up and to avoid the
3950 * boundless mempool growth caused by the signature_dup stuff below.
3953 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3955 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3957 res = mono_marshal_find_in_cache (cache, method);
3961 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3962 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3964 * Array Get/Set/Address methods. The JIT implements them using inline code
3965 * so we need to create an invoke wrapper which calls the method directly.
3967 need_direct_wrapper = TRUE;
3970 if (method->string_ctor) {
3971 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3973 callsig = add_string_ctor_signature (method);
3974 /* Can't share this as we push a string as this */
3975 need_direct_wrapper = TRUE;
3977 if (method_is_dynamic (method))
3978 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3980 callsig = mono_method_signature (method);
3983 sig = mono_method_signature (method);
3985 target_klass = get_wrapper_target_class (method->klass->image);
3987 /* Try to share wrappers for non-corlib methods with simple signatures */
3988 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3989 callsig = cctor_signature;
3990 target_klass = mono_defaults.object_class;
3991 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3992 callsig = finalize_signature;
3993 target_klass = mono_defaults.object_class;
3996 if (need_direct_wrapper) {
3997 /* Already searched at the start */
3999 MonoMethodSignature *tmp_sig;
4001 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4002 GHashTable **cache_table = NULL;
4004 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4005 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4007 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4009 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4010 (GCompareFunc)runtime_invoke_signature_equal);
4012 /* from mono_marshal_find_in_cache */
4013 mono_marshal_lock ();
4014 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4015 mono_marshal_unlock ();
4022 /* Make a copy of the signature from the image mempool */
4024 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4028 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4030 csig->ret = &mono_defaults.object_class->byval_arg;
4031 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4032 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4034 csig->params [0] = &mono_defaults.object_class->byval_arg;
4035 csig->params [1] = &mono_defaults.int_class->byval_arg;
4036 csig->params [2] = &mono_defaults.int_class->byval_arg;
4037 csig->params [3] = &mono_defaults.int_class->byval_arg;
4040 /* This is called from runtime code so it has to be cdecl */
4041 csig->call_convention = MONO_CALL_C;
4044 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4045 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4049 param_names [0] = "this";
4050 param_names [1] = "params";
4051 param_names [2] = "exc";
4052 param_names [3] = "method";
4053 mono_mb_set_param_names (mb, param_names);
4055 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4058 if (need_direct_wrapper) {
4060 mb->skip_visibility = 1;
4062 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4063 info->d.runtime_invoke.method = method;
4064 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4066 /* taken from mono_mb_create_and_cache */
4067 mono_marshal_lock ();
4068 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4069 mono_marshal_unlock ();
4071 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4072 info->d.runtime_invoke.sig = callsig;
4074 /* Somebody may have created it before us */
4077 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4079 mono_marshal_lock ();
4080 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4082 GHashTable *direct_cache;
4084 g_hash_table_insert (cache, callsig, res);
4085 /* Can't insert it into wrapper_hash since the key is a signature */
4086 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4088 g_hash_table_insert (direct_cache, method, res);
4090 mono_free_method (newm);
4092 mono_marshal_unlock ();
4095 /* end mono_mb_create_and_cache */
4104 * mono_marshal_get_runtime_invoke_dynamic:
4106 * Return a method which can be used to invoke managed methods from native code
4108 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4109 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4110 * ARGS should point to an architecture specific structure containing
4111 * the arguments and space for the return value.
4112 * The other arguments are the same as for runtime_invoke (), except that
4113 * ARGS should contain the this argument too.
4114 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4115 * is only one copy of it, which is useful in full-aot.
4116 * The wrapper info for the wrapper is a WrapperInfo structure.
4119 mono_marshal_get_runtime_invoke_dynamic (void)
4121 static MonoMethod *method;
4122 MonoMethodSignature *csig;
4123 MonoExceptionClause *clause;
4124 MonoMethodBuilder *mb;
4132 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4134 csig->ret = &mono_defaults.void_class->byval_arg;
4135 csig->params [0] = &mono_defaults.int_class->byval_arg;
4136 csig->params [1] = &mono_defaults.int_class->byval_arg;
4137 csig->params [2] = &mono_defaults.int_class->byval_arg;
4138 csig->params [3] = &mono_defaults.int_class->byval_arg;
4140 name = g_strdup ("runtime_invoke_dynamic");
4141 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4145 /* allocate local 0 (object) tmp */
4146 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4147 /* allocate local 1 (object) exc */
4148 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4150 /* cond set *exc to null */
4151 mono_mb_emit_byte (mb, CEE_LDARG_1);
4152 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4153 mono_mb_emit_byte (mb, 3);
4154 mono_mb_emit_byte (mb, CEE_LDARG_1);
4155 mono_mb_emit_byte (mb, CEE_LDNULL);
4156 mono_mb_emit_byte (mb, CEE_STIND_REF);
4158 emit_thread_force_interrupt_checkpoint (mb);
4160 mono_mb_emit_byte (mb, CEE_LDARG_0);
4161 mono_mb_emit_byte (mb, CEE_LDARG_2);
4162 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4163 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4165 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4167 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4168 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4169 clause->try_len = mono_mb_get_label (mb);
4172 clause->data.filter_offset = mono_mb_get_label (mb);
4174 mono_mb_emit_byte (mb, CEE_POP);
4175 mono_mb_emit_byte (mb, CEE_LDARG_1);
4176 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4177 mono_mb_emit_byte (mb, CEE_PREFIX1);
4178 mono_mb_emit_byte (mb, CEE_CGT_UN);
4179 mono_mb_emit_byte (mb, CEE_PREFIX1);
4180 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4182 clause->handler_offset = mono_mb_get_label (mb);
4185 /* store exception */
4186 mono_mb_emit_stloc (mb, 1);
4188 mono_mb_emit_byte (mb, CEE_LDARG_1);
4189 mono_mb_emit_ldloc (mb, 1);
4190 mono_mb_emit_byte (mb, CEE_STIND_REF);
4192 mono_mb_emit_byte (mb, CEE_LDNULL);
4193 mono_mb_emit_stloc (mb, 0);
4195 /* Check for the abort exception */
4196 mono_mb_emit_ldloc (mb, 1);
4197 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4198 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4200 /* Delay the abort exception */
4201 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4203 mono_mb_patch_short_branch (mb, posna);
4204 mono_mb_emit_branch (mb, CEE_LEAVE);
4206 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4208 mono_mb_set_clauses (mb, 1, clause);
4211 mono_mb_patch_branch (mb, pos);
4212 //mono_mb_emit_ldloc (mb, 0);
4213 mono_mb_emit_byte (mb, CEE_RET);
4214 #endif /* DISABLE_JIT */
4216 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4218 mono_marshal_lock ();
4219 /* double-checked locking */
4221 method = mono_mb_create (mb, csig, 16, info);
4223 mono_marshal_unlock ();
4231 * mono_marshal_get_runtime_invoke_for_sig:
4233 * Return a runtime invoke wrapper for a given signature.
4236 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4238 MonoMethodSignature *csig, *callsig;
4239 MonoMethodBuilder *mb;
4241 GHashTable *cache = NULL;
4242 GHashTable **cache_table = NULL;
4243 MonoMethod *res = NULL;
4245 const char *param_names [16];
4248 /* A simplified version of mono_marshal_get_runtime_invoke */
4250 image = mono_defaults.corlib;
4252 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4254 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4256 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4257 (GCompareFunc)runtime_invoke_signature_equal);
4259 /* from mono_marshal_find_in_cache */
4260 mono_marshal_lock ();
4261 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4262 mono_marshal_unlock ();
4269 /* Make a copy of the signature from the image mempool */
4270 callsig = mono_metadata_signature_dup_full (image, callsig);
4272 csig = mono_metadata_signature_alloc (image, 4);
4273 csig->ret = &mono_defaults.object_class->byval_arg;
4274 csig->params [0] = &mono_defaults.object_class->byval_arg;
4275 csig->params [1] = &mono_defaults.int_class->byval_arg;
4276 csig->params [2] = &mono_defaults.int_class->byval_arg;
4277 csig->params [3] = &mono_defaults.int_class->byval_arg;
4280 /* This is called from runtime code so it has to be cdecl */
4281 csig->call_convention = MONO_CALL_C;
4284 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4285 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4289 param_names [0] = "this";
4290 param_names [1] = "params";
4291 param_names [2] = "exc";
4292 param_names [3] = "method";
4293 mono_mb_set_param_names (mb, param_names);
4295 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4298 /* taken from mono_mb_create_and_cache */
4299 mono_marshal_lock ();
4300 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4301 mono_marshal_unlock ();
4303 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4304 info->d.runtime_invoke.sig = callsig;
4306 /* Somebody may have created it before us */
4309 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4311 mono_marshal_lock ();
4312 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4315 g_hash_table_insert (cache, callsig, res);
4317 mono_free_method (newm);
4319 mono_marshal_unlock ();
4322 /* end mono_mb_create_and_cache */
4331 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4333 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4334 klass->name_space, klass->name);
4336 mono_mb_emit_exception_marshal_directive (mb, msg);
4341 * generates IL code for the icall wrapper (the generated method
4342 * calls the unmanaged code in func)
4343 * The wrapper info for the wrapper is a WrapperInfo structure.
4346 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4348 MonoMethodSignature *csig, *csig2;
4349 MonoMethodBuilder *mb;
4354 g_assert (sig->pinvoke);
4356 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4358 mb->method->save_lmf = 1;
4360 /* Add an explicit this argument */
4362 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4364 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4368 mono_mb_emit_byte (mb, CEE_LDARG_0);
4370 for (i = 0; i < sig->param_count; i++)
4371 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4373 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4374 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4375 mono_mb_emit_calli (mb, csig2);
4376 if (check_exceptions)
4377 emit_thread_interrupt_checkpoint (mb);
4378 mono_mb_emit_byte (mb, CEE_RET);
4381 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4383 if (csig->call_convention == MONO_CALL_VARARG)
4384 csig->call_convention = 0;
4386 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4387 info->d.icall.func = (gpointer)func;
4388 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4395 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4396 MonoMarshalSpec *spec,
4397 int conv_arg, MonoType **conv_arg_type,
4398 MarshalAction action)
4401 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4402 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4407 static MonoClass *ICustomMarshaler = NULL;
4408 static MonoMethod *cleanup_native, *cleanup_managed;
4409 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4410 MonoMethod *get_instance = NULL;
4411 MonoMethodBuilder *mb = m->mb;
4412 char *exception_msg = NULL;
4416 if (!ICustomMarshaler) {
4417 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4419 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4420 goto handle_exception;
4423 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4424 g_assert (cleanup_native);
4425 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4426 g_assert (cleanup_managed);
4427 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4428 g_assert (marshal_managed_to_native);
4429 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4430 g_assert (marshal_native_to_managed);
4432 mono_memory_barrier ();
4433 ICustomMarshaler = klass;
4436 if (spec->data.custom_data.image)
4437 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4439 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4440 g_assert (mtype != NULL);
4441 mklass = mono_class_from_mono_type (mtype);
4442 g_assert (mklass != NULL);
4444 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4445 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4447 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4449 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4450 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4451 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4452 (get_sig->params [0]->type != MONO_TYPE_STRING))
4453 get_instance = NULL;
4457 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);
4460 /* Throw exception and emit compensation code if neccesary */
4461 if (exception_msg) {
4463 case MARSHAL_ACTION_CONV_IN:
4464 case MARSHAL_ACTION_CONV_RESULT:
4465 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4466 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4467 mono_mb_emit_byte (mb, CEE_POP);
4469 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4470 g_free (exception_msg);
4473 case MARSHAL_ACTION_PUSH:
4474 mono_mb_emit_byte (mb, CEE_LDNULL);
4482 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4483 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4486 case MARSHAL_ACTION_CONV_IN:
4488 case MONO_TYPE_CLASS:
4489 case MONO_TYPE_OBJECT:
4490 case MONO_TYPE_STRING:
4491 case MONO_TYPE_ARRAY:
4492 case MONO_TYPE_SZARRAY:
4493 case MONO_TYPE_VALUETYPE:
4497 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4498 g_assert_not_reached ();
4502 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4504 mono_mb_emit_byte (mb, CEE_LDNULL);
4505 mono_mb_emit_stloc (mb, conv_arg);
4507 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4510 /* Minic MS.NET behavior */
4511 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4514 /* Check for null */
4515 mono_mb_emit_ldarg (mb, argnum);
4517 mono_mb_emit_byte (mb, CEE_LDIND_I);
4518 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4520 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4522 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4524 mono_mb_emit_ldarg (mb, argnum);
4526 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4528 if (t->type == MONO_TYPE_VALUETYPE) {
4530 * Since we can't determine the type of the argument, we
4531 * will assume the unmanaged function takes a pointer.
4533 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4535 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4538 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4539 mono_mb_emit_stloc (mb, conv_arg);
4541 mono_mb_patch_branch (mb, pos2);
4544 case MARSHAL_ACTION_CONV_OUT:
4545 /* Check for null */
4546 mono_mb_emit_ldloc (mb, conv_arg);
4547 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4550 mono_mb_emit_ldarg (mb, argnum);
4552 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4554 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4556 mono_mb_emit_ldloc (mb, conv_arg);
4557 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4558 mono_mb_emit_byte (mb, CEE_STIND_REF);
4559 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4560 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4562 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4564 mono_mb_emit_ldloc (mb, conv_arg);
4565 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4567 /* We have nowhere to store the result */
4568 mono_mb_emit_byte (mb, CEE_POP);
4571 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4573 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4575 mono_mb_emit_ldloc (mb, conv_arg);
4577 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4579 mono_mb_patch_branch (mb, pos2);
4582 case MARSHAL_ACTION_PUSH:
4584 mono_mb_emit_ldloc_addr (mb, conv_arg);
4586 mono_mb_emit_ldloc (mb, conv_arg);
4589 case MARSHAL_ACTION_CONV_RESULT:
4590 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4592 mono_mb_emit_stloc (mb, 3);
4594 mono_mb_emit_ldloc (mb, 3);
4595 mono_mb_emit_stloc (mb, loc1);
4597 /* Check for null */
4598 mono_mb_emit_ldloc (mb, 3);
4599 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4601 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4603 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4604 mono_mb_emit_byte (mb, CEE_DUP);
4606 mono_mb_emit_ldloc (mb, 3);
4607 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4608 mono_mb_emit_stloc (mb, 3);
4610 mono_mb_emit_ldloc (mb, loc1);
4611 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4613 mono_mb_patch_branch (mb, pos2);
4616 case MARSHAL_ACTION_MANAGED_CONV_IN:
4617 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4619 mono_mb_emit_byte (mb, CEE_LDNULL);
4620 mono_mb_emit_stloc (mb, conv_arg);
4622 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4625 /* Check for null */
4626 mono_mb_emit_ldarg (mb, argnum);
4628 mono_mb_emit_byte (mb, CEE_LDIND_I);
4629 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4631 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4632 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4634 mono_mb_emit_ldarg (mb, argnum);
4636 mono_mb_emit_byte (mb, CEE_LDIND_I);
4638 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4639 mono_mb_emit_stloc (mb, conv_arg);
4641 mono_mb_patch_branch (mb, pos2);
4644 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4645 g_assert (!t->byref);
4647 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4649 mono_mb_emit_stloc (mb, 3);
4651 mono_mb_emit_ldloc (mb, 3);
4652 mono_mb_emit_stloc (mb, loc1);
4654 /* Check for null */
4655 mono_mb_emit_ldloc (mb, 3);
4656 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4658 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4659 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4660 mono_mb_emit_byte (mb, CEE_DUP);
4662 mono_mb_emit_ldloc (mb, 3);
4663 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4664 mono_mb_emit_stloc (mb, 3);
4666 mono_mb_emit_ldloc (mb, loc1);
4667 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4669 mono_mb_patch_branch (mb, pos2);
4672 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4674 /* Check for null */
4675 mono_mb_emit_ldloc (mb, conv_arg);
4676 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4679 mono_mb_emit_ldarg (mb, argnum);
4681 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4683 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4685 mono_mb_emit_ldloc (mb, conv_arg);
4686 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4687 mono_mb_emit_byte (mb, CEE_STIND_I);
4690 /* Call CleanUpManagedData */
4691 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4693 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4695 mono_mb_emit_ldloc (mb, conv_arg);
4696 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4698 mono_mb_patch_branch (mb, pos2);
4702 g_assert_not_reached ();
4710 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4711 MonoMarshalSpec *spec,
4712 int conv_arg, MonoType **conv_arg_type,
4713 MarshalAction action)
4716 MonoMethodBuilder *mb = m->mb;
4719 case MARSHAL_ACTION_CONV_IN: {
4720 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4722 g_assert (t->type == MONO_TYPE_OBJECT);
4723 g_assert (!t->byref);
4725 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4726 mono_mb_emit_ldarg (mb, argnum);
4727 mono_mb_emit_icon (mb, encoding);
4728 mono_mb_emit_icon (mb, t->attrs);
4729 mono_mb_emit_icall (mb, mono_marshal_asany);
4730 mono_mb_emit_stloc (mb, conv_arg);
4734 case MARSHAL_ACTION_PUSH:
4735 mono_mb_emit_ldloc (mb, conv_arg);
4738 case MARSHAL_ACTION_CONV_OUT: {
4739 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4741 mono_mb_emit_ldarg (mb, argnum);
4742 mono_mb_emit_ldloc (mb, conv_arg);
4743 mono_mb_emit_icon (mb, encoding);
4744 mono_mb_emit_icon (mb, t->attrs);
4745 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4750 g_assert_not_reached ();
4757 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4758 MonoMarshalSpec *spec,
4759 int conv_arg, MonoType **conv_arg_type,
4760 MarshalAction action)
4763 MonoMethodBuilder *mb = m->mb;
4764 MonoClass *klass, *date_time_class;
4767 klass = mono_class_from_mono_type (t);
4769 date_time_class = mono_class_get_date_time_class ();
4772 case MARSHAL_ACTION_CONV_IN:
4773 if (klass == date_time_class) {
4774 /* Convert it to an OLE DATE type */
4775 static MonoMethod *to_oadate;
4778 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4779 g_assert (to_oadate);
4781 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4784 mono_mb_emit_ldarg (mb, argnum);
4785 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4788 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4790 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4792 mono_mb_emit_ldarg_addr (mb, argnum);
4793 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4794 mono_mb_emit_stloc (mb, conv_arg);
4798 mono_mb_patch_branch (mb, pos);
4802 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4803 klass->blittable || klass->enumtype)
4806 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4808 /* store the address of the source into local variable 0 */
4810 mono_mb_emit_ldarg (mb, argnum);
4812 mono_mb_emit_ldarg_addr (mb, argnum);
4814 mono_mb_emit_stloc (mb, 0);
4816 /* allocate space for the native struct and
4817 * store the address into local variable 1 (dest) */
4818 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4819 mono_mb_emit_byte (mb, CEE_PREFIX1);
4820 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4821 mono_mb_emit_stloc (mb, conv_arg);
4824 mono_mb_emit_ldloc (mb, 0);
4825 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4828 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4830 mono_mb_emit_ldloc (mb, conv_arg);
4831 mono_mb_emit_stloc (mb, 1);
4833 /* emit valuetype conversion code */
4834 emit_struct_conv (mb, klass, FALSE);
4838 mono_mb_patch_branch (mb, pos);
4841 case MARSHAL_ACTION_PUSH:
4842 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4844 g_assert (!t->byref);
4846 /* Have to change the signature since the vtype is passed byref */
4847 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4849 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4850 klass->blittable || klass->enumtype)
4851 mono_mb_emit_ldarg_addr (mb, argnum);
4853 mono_mb_emit_ldloc (mb, conv_arg);
4857 if (klass == date_time_class) {
4859 mono_mb_emit_ldloc_addr (mb, conv_arg);
4861 mono_mb_emit_ldloc (mb, conv_arg);
4865 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4866 klass->blittable || klass->enumtype) {
4867 mono_mb_emit_ldarg (mb, argnum);
4870 mono_mb_emit_ldloc (mb, conv_arg);
4872 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4873 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4877 case MARSHAL_ACTION_CONV_OUT:
4878 if (klass == date_time_class) {
4879 /* Convert from an OLE DATE type */
4880 static MonoMethod *from_oadate;
4885 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4887 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4888 g_assert (from_oadate);
4890 mono_mb_emit_ldarg (mb, argnum);
4891 mono_mb_emit_ldloc (mb, conv_arg);
4892 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4893 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4898 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4899 klass->blittable || klass->enumtype)
4903 /* dst = argument */
4904 mono_mb_emit_ldarg (mb, argnum);
4905 mono_mb_emit_stloc (mb, 1);
4907 mono_mb_emit_ldloc (mb, 1);
4908 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4910 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4911 /* src = tmp_locals [i] */
4912 mono_mb_emit_ldloc (mb, conv_arg);
4913 mono_mb_emit_stloc (mb, 0);
4915 /* emit valuetype conversion code */
4916 emit_struct_conv (mb, klass, TRUE);
4920 emit_struct_free (mb, klass, conv_arg);
4923 mono_mb_patch_branch (mb, pos);
4926 case MARSHAL_ACTION_CONV_RESULT:
4927 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4929 mono_mb_emit_stloc (mb, 3);
4933 /* load pointer to returned value type */
4934 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4935 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4936 /* store the address of the source into local variable 0 */
4937 mono_mb_emit_stloc (mb, 0);
4939 mono_mb_emit_ldloc_addr (mb, 3);
4940 mono_mb_emit_stloc (mb, 1);
4942 /* emit valuetype conversion code */
4943 emit_struct_conv (mb, klass, TRUE);
4946 case MARSHAL_ACTION_MANAGED_CONV_IN:
4947 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4948 klass->blittable || klass->enumtype) {
4953 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4955 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4959 mono_mb_emit_ldarg (mb, argnum);
4961 mono_mb_emit_ldarg_addr (mb, argnum);
4962 mono_mb_emit_stloc (mb, 0);
4965 mono_mb_emit_ldloc (mb, 0);
4966 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4969 mono_mb_emit_ldloc_addr (mb, conv_arg);
4970 mono_mb_emit_stloc (mb, 1);
4972 /* emit valuetype conversion code */
4973 emit_struct_conv (mb, klass, TRUE);
4976 mono_mb_patch_branch (mb, pos);
4979 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4980 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4981 klass->blittable || klass->enumtype) {
4985 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4988 /* Check for null */
4989 mono_mb_emit_ldarg (mb, argnum);
4990 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4993 mono_mb_emit_ldloc_addr (mb, conv_arg);
4994 mono_mb_emit_stloc (mb, 0);
4997 mono_mb_emit_ldarg (mb, argnum);
4998 mono_mb_emit_stloc (mb, 1);
5000 /* emit valuetype conversion code */
5001 emit_struct_conv (mb, klass, FALSE);
5003 mono_mb_patch_branch (mb, pos2);
5006 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5007 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5008 klass->blittable || klass->enumtype) {
5009 mono_mb_emit_stloc (mb, 3);
5014 /* load pointer to returned value type */
5015 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5016 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5018 /* store the address of the source into local variable 0 */
5019 mono_mb_emit_stloc (mb, 0);
5020 /* allocate space for the native struct and
5021 * store the address into dst_ptr */
5022 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5023 m->retobj_class = klass;
5024 g_assert (m->retobj_var);
5025 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5026 mono_mb_emit_byte (mb, CEE_CONV_I);
5027 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5028 mono_mb_emit_stloc (mb, 1);
5029 mono_mb_emit_ldloc (mb, 1);
5030 mono_mb_emit_stloc (mb, m->retobj_var);
5032 /* emit valuetype conversion code */
5033 emit_struct_conv (mb, klass, FALSE);
5037 g_assert_not_reached ();
5044 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5045 MonoMarshalSpec *spec,
5046 int conv_arg, MonoType **conv_arg_type,
5047 MarshalAction action)
5051 case MARSHAL_ACTION_CONV_IN:
5052 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5054 case MARSHAL_ACTION_MANAGED_CONV_IN:
5055 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5059 MonoMethodBuilder *mb = m->mb;
5060 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5061 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5065 case MARSHAL_ACTION_CONV_IN:
5066 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5067 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5070 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5073 mono_mb_emit_ldarg (mb, argnum);
5074 mono_mb_emit_byte (mb, CEE_LDIND_I);
5076 mono_mb_emit_ldarg (mb, argnum);
5080 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5081 mono_mb_emit_exception_marshal_directive (mb, msg);
5083 mono_mb_emit_icall (mb, conv_to_icall (conv));
5085 mono_mb_emit_stloc (mb, conv_arg);
5089 case MARSHAL_ACTION_CONV_OUT:
5090 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5092 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5093 mono_mb_emit_exception_marshal_directive (mb, msg);
5097 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5098 static MonoMethod *m;
5101 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5106 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5107 mono_mb_emit_exception_marshal_directive (mb, msg);
5112 * Have to allocate a new string with the same length as the original, and
5113 * copy the contents of the buffer pointed to by CONV_ARG into it.
5115 g_assert (t->byref);
5116 mono_mb_emit_ldarg (mb, argnum);
5117 mono_mb_emit_ldloc (mb, conv_arg);
5118 mono_mb_emit_ldarg (mb, argnum);
5119 mono_mb_emit_byte (mb, CEE_LDIND_I);
5120 mono_mb_emit_managed_call (mb, m, NULL);
5121 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5122 mono_mb_emit_byte (mb, CEE_STIND_REF);
5123 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5124 mono_mb_emit_ldarg (mb, argnum);
5125 mono_mb_emit_ldloc (mb, conv_arg);
5126 mono_mb_emit_icall (mb, conv_to_icall (conv));
5127 mono_mb_emit_byte (mb, CEE_STIND_REF);
5132 mono_mb_emit_ldloc (mb, conv_arg);
5133 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5134 mono_mb_emit_icall (mb, mono_free_bstr);
5136 mono_mb_emit_icall (mb, mono_marshal_free);
5140 case MARSHAL_ACTION_PUSH:
5141 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5142 mono_mb_emit_ldloc_addr (mb, conv_arg);
5144 mono_mb_emit_ldloc (mb, conv_arg);
5147 case MARSHAL_ACTION_CONV_RESULT:
5148 mono_mb_emit_stloc (mb, 0);
5150 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5152 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5153 mono_mb_emit_exception_marshal_directive (mb, msg);
5157 mono_mb_emit_ldloc (mb, 0);
5158 mono_mb_emit_icall (mb, conv_to_icall (conv));
5159 mono_mb_emit_stloc (mb, 3);
5161 /* free the string */
5162 mono_mb_emit_ldloc (mb, 0);
5163 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5164 mono_mb_emit_icall (mb, mono_free_bstr);
5166 mono_mb_emit_icall (mb, mono_marshal_free);
5169 case MARSHAL_ACTION_MANAGED_CONV_IN:
5170 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5172 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5175 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5179 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5181 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5182 mono_mb_emit_exception_marshal_directive (mb, msg);
5186 mono_mb_emit_ldarg (mb, argnum);
5188 mono_mb_emit_byte (mb, CEE_LDIND_I);
5189 mono_mb_emit_icall (mb, conv_to_icall (conv));
5190 mono_mb_emit_stloc (mb, conv_arg);
5193 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5196 mono_mb_emit_ldarg (mb, argnum);
5197 mono_mb_emit_ldloc (mb, conv_arg);
5198 mono_mb_emit_icall (mb, conv_to_icall (conv));
5199 mono_mb_emit_byte (mb, CEE_STIND_I);
5204 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5205 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5206 /* We need to make a copy so the caller is able to free it */
5207 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5209 mono_mb_emit_icall (mb, conv_to_icall (conv));
5210 mono_mb_emit_stloc (mb, 3);
5214 g_assert_not_reached ();
5222 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5223 MonoMarshalSpec *spec, int conv_arg,
5224 MonoType **conv_arg_type, MarshalAction action)
5227 if (action == MARSHAL_ACTION_CONV_IN)
5228 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5230 MonoMethodBuilder *mb = m->mb;
5233 case MARSHAL_ACTION_CONV_IN: {
5234 MonoType *intptr_type;
5235 int dar_release_slot, pos;
5237 intptr_type = &mono_defaults.int_class->byval_arg;
5238 conv_arg = mono_mb_add_local (mb, intptr_type);
5239 *conv_arg_type = intptr_type;
5241 if (!sh_dangerous_add_ref)
5242 init_safe_handle ();
5244 mono_mb_emit_ldarg (mb, argnum);
5245 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5246 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5248 mono_mb_patch_branch (mb, pos);
5251 * My tests in show that ref SafeHandles are not really
5252 * passed as ref objects. Instead a NULL is passed as the
5255 mono_mb_emit_icon (mb, 0);
5256 mono_mb_emit_stloc (mb, conv_arg);
5260 /* Create local to hold the ref parameter to DangerousAddRef */
5261 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5263 /* set release = false; */
5264 mono_mb_emit_icon (mb, 0);
5265 mono_mb_emit_stloc (mb, dar_release_slot);
5267 /* safehandle.DangerousAddRef (ref release) */
5268 mono_mb_emit_ldarg (mb, argnum);
5269 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5270 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5272 /* Pull the handle field from SafeHandle */
5273 mono_mb_emit_ldarg (mb, argnum);
5274 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5275 mono_mb_emit_byte (mb, CEE_LDIND_I);
5276 mono_mb_emit_stloc (mb, conv_arg);
5281 case MARSHAL_ACTION_PUSH:
5283 mono_mb_emit_ldloc_addr (mb, conv_arg);
5285 mono_mb_emit_ldloc (mb, conv_arg);
5288 case MARSHAL_ACTION_CONV_OUT: {
5289 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5290 int dar_release_slot = conv_arg + 1;
5293 if (!sh_dangerous_release)
5294 init_safe_handle ();
5300 * My tests indicate that ref SafeHandles parameters are not actually
5301 * passed by ref, but instead a new Handle is created regardless of
5302 * whether a change happens in the unmanaged side.
5304 * Also, the Handle is created before calling into unmanaged code,
5305 * but we do not support that mechanism (getting to the original
5306 * handle) and it makes no difference where we create this
5308 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5310 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5313 /* refval = new SafeHandleDerived ()*/
5314 mono_mb_emit_ldarg (mb, argnum);
5315 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5316 mono_mb_emit_byte (mb, CEE_STIND_REF);
5318 /* refval.handle = returned_handle */
5319 mono_mb_emit_ldarg (mb, argnum);
5320 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5321 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5322 mono_mb_emit_ldloc (mb, conv_arg);
5323 mono_mb_emit_byte (mb, CEE_STIND_I);
5325 mono_mb_emit_ldloc (mb, dar_release_slot);
5326 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5327 mono_mb_emit_ldarg (mb, argnum);
5328 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5329 mono_mb_patch_branch (mb, label_next);
5334 case MARSHAL_ACTION_CONV_RESULT: {
5335 MonoMethod *ctor = NULL;
5336 int intptr_handle_slot;
5338 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5339 mono_mb_emit_byte (mb, CEE_POP);
5340 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5344 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5346 mono_mb_emit_byte (mb, CEE_POP);
5347 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5350 /* Store the IntPtr results into a local */
5351 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5352 mono_mb_emit_stloc (mb, intptr_handle_slot);
5354 /* Create return value */
5355 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5356 mono_mb_emit_stloc (mb, 3);
5358 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5359 mono_mb_emit_ldloc (mb, 3);
5360 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5361 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5362 mono_mb_emit_byte (mb, CEE_STIND_I);
5366 case MARSHAL_ACTION_MANAGED_CONV_IN:
5367 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5370 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5371 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5374 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5375 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5378 printf ("Unhandled case for MarshalAction: %d\n", action);
5386 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5387 MonoMarshalSpec *spec, int conv_arg,
5388 MonoType **conv_arg_type, MarshalAction action)
5391 if (action == MARSHAL_ACTION_CONV_IN)
5392 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5394 MonoMethodBuilder *mb = m->mb;
5397 case MARSHAL_ACTION_CONV_IN: {
5398 MonoType *intptr_type;
5400 intptr_type = &mono_defaults.int_class->byval_arg;
5401 conv_arg = mono_mb_add_local (mb, intptr_type);
5402 *conv_arg_type = intptr_type;
5405 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5406 mono_mb_emit_exception_marshal_directive (mb, msg);
5409 mono_mb_emit_ldarg_addr (mb, argnum);
5410 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5411 mono_mb_emit_byte (mb, CEE_ADD);
5412 mono_mb_emit_byte (mb, CEE_LDIND_I);
5413 mono_mb_emit_stloc (mb, conv_arg);
5417 case MARSHAL_ACTION_PUSH:
5418 mono_mb_emit_ldloc (mb, conv_arg);
5421 case MARSHAL_ACTION_CONV_OUT: {
5422 /* no resource release required */
5426 case MARSHAL_ACTION_CONV_RESULT: {
5427 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5428 mono_mb_emit_exception_marshal_directive (mb, msg);
5432 case MARSHAL_ACTION_MANAGED_CONV_IN:
5433 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5436 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5437 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5440 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5441 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5444 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5452 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5453 MonoMarshalSpec *spec,
5454 int conv_arg, MonoType **conv_arg_type,
5455 MarshalAction action)
5458 if (action == MARSHAL_ACTION_CONV_IN)
5459 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5461 MonoMethodBuilder *mb = m->mb;
5462 MonoClass *klass = mono_class_from_mono_type (t);
5466 case MARSHAL_ACTION_CONV_IN:
5467 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5468 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5470 m->orig_conv_args [argnum] = 0;
5472 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5473 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5474 mono_mb_emit_exception_marshal_directive (mb, msg);
5478 if (klass->delegate) {
5480 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5481 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5482 mono_mb_emit_exception_marshal_directive (mb, msg);
5484 mono_mb_emit_byte (mb, CEE_LDNULL);
5485 mono_mb_emit_stloc (mb, conv_arg);
5487 mono_mb_emit_ldarg (mb, argnum);
5488 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5489 mono_mb_emit_stloc (mb, conv_arg);
5491 } else if (klass == mono_defaults.stringbuilder_class) {
5492 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5493 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5497 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5498 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5499 mono_mb_emit_exception_marshal_directive (mb, msg);
5505 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5509 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5510 mono_mb_emit_exception_marshal_directive (mb, msg);
5514 mono_mb_emit_ldarg (mb, argnum);
5516 mono_mb_emit_byte (mb, CEE_LDIND_I);
5518 mono_mb_emit_icall (mb, conv_to_icall (conv));
5519 mono_mb_emit_stloc (mb, conv_arg);
5520 } else if (klass->blittable) {
5521 mono_mb_emit_byte (mb, CEE_LDNULL);
5522 mono_mb_emit_stloc (mb, conv_arg);
5524 mono_mb_emit_ldarg (mb, argnum);
5525 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5527 mono_mb_emit_ldarg (mb, argnum);
5528 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5529 mono_mb_emit_stloc (mb, conv_arg);
5531 mono_mb_patch_branch (mb, pos);
5534 mono_mb_emit_byte (mb, CEE_LDNULL);
5535 mono_mb_emit_stloc (mb, conv_arg);
5538 /* we dont need any conversions for out parameters */
5539 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5542 mono_mb_emit_ldarg (mb, argnum);
5543 mono_mb_emit_byte (mb, CEE_LDIND_I);
5546 mono_mb_emit_ldarg (mb, argnum);
5547 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5548 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5551 /* store the address of the source into local variable 0 */
5552 mono_mb_emit_stloc (mb, 0);
5553 mono_mb_emit_ldloc (mb, 0);
5554 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5556 /* allocate space for the native struct and store the address */
5557 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5558 mono_mb_emit_byte (mb, CEE_PREFIX1);
5559 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5560 mono_mb_emit_stloc (mb, conv_arg);
5563 /* Need to store the original buffer so we can free it later */
5564 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5565 mono_mb_emit_ldloc (mb, conv_arg);
5566 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5569 /* set the src_ptr */
5570 mono_mb_emit_ldloc (mb, 0);
5571 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5572 mono_mb_emit_stloc (mb, 0);
5575 mono_mb_emit_ldloc (mb, conv_arg);
5576 mono_mb_emit_stloc (mb, 1);
5578 /* emit valuetype conversion code */
5579 emit_struct_conv (mb, klass, FALSE);
5581 mono_mb_patch_branch (mb, pos);
5585 case MARSHAL_ACTION_CONV_OUT:
5586 if (klass == mono_defaults.stringbuilder_class) {
5588 MonoMarshalNative encoding;
5589 MonoMarshalConv conv;
5591 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5592 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5594 g_assert (encoding != -1);
5597 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5601 mono_mb_emit_ldarg (mb, argnum);
5602 mono_mb_emit_ldloc (mb, conv_arg);
5605 case MONO_NATIVE_LPWSTR:
5606 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5608 case MONO_NATIVE_LPSTR:
5609 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5612 g_assert_not_reached ();
5615 mono_mb_emit_byte (mb, CEE_STIND_REF);
5617 mono_mb_emit_ldarg (mb, argnum);
5618 mono_mb_emit_ldloc (mb, conv_arg);
5620 mono_mb_emit_icall (mb, conv_to_icall (conv));
5624 mono_mb_emit_ldloc (mb, conv_arg);
5625 mono_mb_emit_icall (mb, mono_marshal_free);
5630 if (klass->delegate) {
5632 mono_mb_emit_ldarg (mb, argnum);
5633 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5634 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5635 mono_mb_emit_ldloc (mb, conv_arg);
5636 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5637 mono_mb_emit_byte (mb, CEE_STIND_REF);
5642 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5643 /* allocate a new object */
5644 mono_mb_emit_ldarg (mb, argnum);
5645 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5646 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5647 mono_mb_emit_byte (mb, CEE_STIND_REF);
5650 /* dst = *argument */
5651 mono_mb_emit_ldarg (mb, argnum);
5654 mono_mb_emit_byte (mb, CEE_LDIND_I);
5656 mono_mb_emit_stloc (mb, 1);
5658 mono_mb_emit_ldloc (mb, 1);
5659 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5661 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5662 mono_mb_emit_ldloc (mb, 1);
5663 mono_mb_emit_icon (mb, sizeof (MonoObject));
5664 mono_mb_emit_byte (mb, CEE_ADD);
5665 mono_mb_emit_stloc (mb, 1);
5667 /* src = tmp_locals [i] */
5668 mono_mb_emit_ldloc (mb, conv_arg);
5669 mono_mb_emit_stloc (mb, 0);
5671 /* emit valuetype conversion code */
5672 emit_struct_conv (mb, klass, TRUE);
5674 /* Free the structure returned by the native code */
5675 emit_struct_free (mb, klass, conv_arg);
5677 if (m->orig_conv_args [argnum]) {
5679 * If the native function changed the pointer, then free
5680 * the original structure plus the new pointer.
5682 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5683 mono_mb_emit_ldloc (mb, conv_arg);
5684 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5686 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5687 g_assert (m->orig_conv_args [argnum]);
5689 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5692 mono_mb_emit_ldloc (mb, conv_arg);
5693 mono_mb_emit_icall (mb, mono_marshal_free);
5695 mono_mb_patch_branch (mb, pos2);
5699 /* Free the original structure passed to native code */
5700 emit_struct_free (mb, klass, conv_arg);
5702 mono_mb_patch_branch (mb, pos);
5705 case MARSHAL_ACTION_PUSH:
5707 mono_mb_emit_ldloc_addr (mb, conv_arg);
5709 mono_mb_emit_ldloc (mb, conv_arg);
5712 case MARSHAL_ACTION_CONV_RESULT:
5713 if (klass->delegate) {
5714 g_assert (!t->byref);
5715 mono_mb_emit_stloc (mb, 0);
5716 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5717 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5718 mono_mb_emit_ldloc (mb, 0);
5719 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5720 mono_mb_emit_stloc (mb, 3);
5723 mono_mb_emit_stloc (mb, 0);
5725 /* Make a copy since emit_conv modifies local 0 */
5726 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5727 mono_mb_emit_ldloc (mb, 0);
5728 mono_mb_emit_stloc (mb, loc);
5730 mono_mb_emit_byte (mb, CEE_LDNULL);
5731 mono_mb_emit_stloc (mb, 3);
5733 mono_mb_emit_ldloc (mb, 0);
5734 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5736 /* allocate result object */
5738 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5739 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5740 mono_mb_emit_stloc (mb, 3);
5744 mono_mb_emit_ldloc (mb, 3);
5745 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5746 mono_mb_emit_stloc (mb, 1);
5748 /* emit conversion code */
5749 emit_struct_conv (mb, klass, TRUE);
5751 emit_struct_free (mb, klass, loc);
5753 /* Free the pointer allocated by unmanaged code */
5754 mono_mb_emit_ldloc (mb, loc);
5755 mono_mb_emit_icall (mb, mono_marshal_free);
5756 mono_mb_patch_branch (mb, pos);
5760 case MARSHAL_ACTION_MANAGED_CONV_IN:
5761 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5763 if (klass->delegate) {
5764 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5765 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5766 mono_mb_emit_ldarg (mb, argnum);
5768 mono_mb_emit_byte (mb, CEE_LDIND_I);
5769 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5770 mono_mb_emit_stloc (mb, conv_arg);
5774 if (klass == mono_defaults.stringbuilder_class) {
5775 MonoMarshalNative encoding;
5777 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5780 g_assert (encoding == MONO_NATIVE_LPSTR);
5782 g_assert (!t->byref);
5783 g_assert (encoding != -1);
5785 mono_mb_emit_ldarg (mb, argnum);
5786 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5787 mono_mb_emit_stloc (mb, conv_arg);
5791 /* The class can not have an automatic layout */
5792 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5793 mono_mb_emit_auto_layout_exception (mb, klass);
5797 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5798 mono_mb_emit_byte (mb, CEE_LDNULL);
5799 mono_mb_emit_stloc (mb, conv_arg);
5804 mono_mb_emit_ldarg (mb, argnum);
5808 /* Check for NULL and raise an exception */
5809 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5811 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5813 mono_mb_patch_branch (mb, pos2);
5814 mono_mb_emit_ldarg (mb, argnum);
5815 mono_mb_emit_byte (mb, CEE_LDIND_I);
5818 mono_mb_emit_stloc (mb, 0);
5820 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5821 mono_mb_emit_stloc (mb, conv_arg);
5823 mono_mb_emit_ldloc (mb, 0);
5824 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5826 /* Create and set dst */
5827 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5828 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5829 mono_mb_emit_stloc (mb, conv_arg);
5830 mono_mb_emit_ldloc (mb, conv_arg);
5831 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5832 mono_mb_emit_stloc (mb, 1);
5834 /* emit valuetype conversion code */
5835 emit_struct_conv (mb, klass, TRUE);
5837 mono_mb_patch_branch (mb, pos);
5840 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5841 if (klass->delegate) {
5843 mono_mb_emit_ldarg (mb, argnum);
5844 mono_mb_emit_ldloc (mb, conv_arg);
5845 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5846 mono_mb_emit_byte (mb, CEE_STIND_I);
5852 /* Check for null */
5853 mono_mb_emit_ldloc (mb, conv_arg);
5854 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5855 mono_mb_emit_ldarg (mb, argnum);
5856 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5857 mono_mb_emit_byte (mb, CEE_STIND_REF);
5858 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5860 mono_mb_patch_branch (mb, pos);
5863 mono_mb_emit_ldloc (mb, conv_arg);
5864 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5865 mono_mb_emit_stloc (mb, 0);
5867 /* Allocate and set dest */
5868 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5869 mono_mb_emit_byte (mb, CEE_CONV_I);
5870 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5871 mono_mb_emit_stloc (mb, 1);
5873 /* Update argument pointer */
5874 mono_mb_emit_ldarg (mb, argnum);
5875 mono_mb_emit_ldloc (mb, 1);
5876 mono_mb_emit_byte (mb, CEE_STIND_I);
5878 /* emit valuetype conversion code */
5879 emit_struct_conv (mb, klass, FALSE);
5881 mono_mb_patch_branch (mb, pos2);
5882 } else if (klass == mono_defaults.stringbuilder_class) {
5883 // FIXME: What to do here ?
5885 /* byval [Out] marshalling */
5887 /* FIXME: Handle null */
5890 mono_mb_emit_ldloc (mb, conv_arg);
5891 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5892 mono_mb_emit_stloc (mb, 0);
5895 mono_mb_emit_ldarg (mb, argnum);
5896 mono_mb_emit_stloc (mb, 1);
5898 /* emit valuetype conversion code */
5899 emit_struct_conv (mb, klass, FALSE);
5903 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5904 if (klass->delegate) {
5905 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5906 mono_mb_emit_stloc (mb, 3);
5910 /* The class can not have an automatic layout */
5911 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5912 mono_mb_emit_auto_layout_exception (mb, klass);
5916 mono_mb_emit_stloc (mb, 0);
5917 /* Check for null */
5918 mono_mb_emit_ldloc (mb, 0);
5919 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5920 mono_mb_emit_byte (mb, CEE_LDNULL);
5921 mono_mb_emit_stloc (mb, 3);
5922 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5924 mono_mb_patch_branch (mb, pos);
5927 mono_mb_emit_ldloc (mb, 0);
5928 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5929 mono_mb_emit_stloc (mb, 0);
5931 /* Allocate and set dest */
5932 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5933 mono_mb_emit_byte (mb, CEE_CONV_I);
5934 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5935 mono_mb_emit_byte (mb, CEE_DUP);
5936 mono_mb_emit_stloc (mb, 1);
5937 mono_mb_emit_stloc (mb, 3);
5939 emit_struct_conv (mb, klass, FALSE);
5941 mono_mb_patch_branch (mb, pos2);
5945 g_assert_not_reached ();
5956 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5957 MonoMarshalSpec *spec,
5958 int conv_arg, MonoType **conv_arg_type,
5959 MarshalAction action)
5961 MonoMethodBuilder *mb = m->mb;
5962 static MonoMethod *get_object_for_native_variant = NULL;
5963 static MonoMethod *get_native_variant_for_object = NULL;
5965 if (!get_object_for_native_variant)
5966 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5967 g_assert (get_object_for_native_variant);
5969 if (!get_native_variant_for_object)
5970 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5971 g_assert (get_native_variant_for_object);
5974 case MARSHAL_ACTION_CONV_IN: {
5975 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5978 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5980 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5982 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5985 mono_mb_emit_ldarg (mb, argnum);
5987 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5988 mono_mb_emit_ldloc_addr (mb, conv_arg);
5989 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5993 case MARSHAL_ACTION_CONV_OUT: {
5994 static MonoMethod *variant_clear = NULL;
5997 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5998 g_assert (variant_clear);
6001 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6002 mono_mb_emit_ldarg (mb, argnum);
6003 mono_mb_emit_ldloc_addr (mb, conv_arg);
6004 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6005 mono_mb_emit_byte (mb, CEE_STIND_REF);
6008 mono_mb_emit_ldloc_addr (mb, conv_arg);
6009 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6013 case MARSHAL_ACTION_PUSH:
6015 mono_mb_emit_ldloc_addr (mb, conv_arg);
6017 mono_mb_emit_ldloc (mb, conv_arg);
6020 case MARSHAL_ACTION_CONV_RESULT: {
6021 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6022 mono_mb_emit_exception_marshal_directive (mb, msg);
6026 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6027 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6030 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6032 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6034 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6038 mono_mb_emit_ldarg (mb, argnum);
6040 mono_mb_emit_ldarg_addr (mb, argnum);
6041 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6042 mono_mb_emit_stloc (mb, conv_arg);
6046 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6047 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6048 mono_mb_emit_ldloc (mb, conv_arg);
6049 mono_mb_emit_ldarg (mb, argnum);
6050 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6055 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6056 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6057 mono_mb_emit_exception_marshal_directive (mb, msg);
6062 g_assert_not_reached ();
6068 #endif /* DISABLE_COM */
6069 #endif /* DISABLE_JIT */
6072 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6074 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6075 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6077 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6079 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6091 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6092 MonoMarshalSpec *spec,
6093 int conv_arg, MonoType **conv_arg_type,
6094 MarshalAction action)
6098 case MARSHAL_ACTION_CONV_IN:
6099 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6101 case MARSHAL_ACTION_MANAGED_CONV_IN:
6102 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6106 MonoMethodBuilder *mb = m->mb;
6107 MonoClass *klass = mono_class_from_mono_type (t);
6108 gboolean need_convert, need_free;
6109 MonoMarshalNative encoding;
6111 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6114 case MARSHAL_ACTION_CONV_IN:
6115 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6116 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6118 if (klass->element_class->blittable) {
6119 mono_mb_emit_ldarg (mb, argnum);
6121 mono_mb_emit_byte (mb, CEE_LDIND_I);
6122 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6123 mono_mb_emit_stloc (mb, conv_arg);
6126 guint32 label1, label2, label3;
6127 int index_var, src_var, dest_ptr, esize;
6128 MonoMarshalConv conv;
6129 gboolean is_string = FALSE;
6131 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6133 eklass = klass->element_class;
6135 if (eklass == mono_defaults.string_class) {
6137 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6139 else if (eklass == mono_defaults.stringbuilder_class) {
6141 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6144 conv = (MonoMarshalConv)-1;
6146 if (is_string && conv == -1) {
6147 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6148 mono_mb_emit_exception_marshal_directive (mb, msg);
6152 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6153 mono_mb_emit_ldarg (mb, argnum);
6155 mono_mb_emit_byte (mb, CEE_LDIND_I);
6156 mono_mb_emit_stloc (mb, src_var);
6159 mono_mb_emit_ldloc (mb, src_var);
6160 mono_mb_emit_stloc (mb, conv_arg);
6161 mono_mb_emit_ldloc (mb, src_var);
6162 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6165 esize = sizeof (gpointer);
6166 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6167 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6169 esize = mono_class_native_size (eklass, NULL);
6171 /* allocate space for the native struct and store the address */
6172 mono_mb_emit_icon (mb, esize);
6173 mono_mb_emit_ldloc (mb, src_var);
6174 mono_mb_emit_byte (mb, CEE_LDLEN);
6176 if (eklass == mono_defaults.string_class) {
6177 /* Make the array bigger for the terminating null */
6178 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6179 mono_mb_emit_byte (mb, CEE_ADD);
6181 mono_mb_emit_byte (mb, CEE_MUL);
6182 mono_mb_emit_byte (mb, CEE_PREFIX1);
6183 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6184 mono_mb_emit_stloc (mb, conv_arg);
6186 mono_mb_emit_ldloc (mb, conv_arg);
6187 mono_mb_emit_stloc (mb, dest_ptr);
6189 /* Emit marshalling loop */
6190 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6191 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6192 mono_mb_emit_stloc (mb, index_var);
6193 label2 = mono_mb_get_label (mb);
6194 mono_mb_emit_ldloc (mb, index_var);
6195 mono_mb_emit_ldloc (mb, src_var);
6196 mono_mb_emit_byte (mb, CEE_LDLEN);
6197 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6199 /* Emit marshalling code */
6202 mono_mb_emit_ldloc (mb, dest_ptr);
6203 mono_mb_emit_ldloc (mb, src_var);
6204 mono_mb_emit_ldloc (mb, index_var);
6205 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6206 mono_mb_emit_icall (mb, conv_to_icall (conv));
6207 mono_mb_emit_byte (mb, CEE_STIND_I);
6209 /* set the src_ptr */
6210 mono_mb_emit_ldloc (mb, src_var);
6211 mono_mb_emit_ldloc (mb, index_var);
6212 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6213 mono_mb_emit_stloc (mb, 0);
6216 mono_mb_emit_ldloc (mb, dest_ptr);
6217 mono_mb_emit_stloc (mb, 1);
6219 /* emit valuetype conversion code */
6220 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6223 mono_mb_emit_add_to_local (mb, index_var, 1);
6224 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6226 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6228 mono_mb_patch_branch (mb, label3);
6230 if (eklass == mono_defaults.string_class) {
6231 /* Null terminate */
6232 mono_mb_emit_ldloc (mb, dest_ptr);
6233 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6234 mono_mb_emit_byte (mb, CEE_STIND_REF);
6237 mono_mb_patch_branch (mb, label1);
6242 case MARSHAL_ACTION_CONV_OUT:
6243 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6244 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);
6245 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6248 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6249 int param_num = spec->data.array_data.param_num;
6250 MonoType *param_type;
6252 param_type = m->sig->params [param_num];
6254 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6255 char *msg = g_strdup ("Not implemented.");
6256 mono_mb_emit_exception_marshal_directive (mb, msg);
6261 mono_mb_emit_ldarg (mb, argnum);
6263 /* Create the managed array */
6264 mono_mb_emit_ldarg (mb, param_num);
6265 if (m->sig->params [param_num]->byref)
6266 // FIXME: Support other types
6267 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6268 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6269 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6270 /* Store into argument */
6271 mono_mb_emit_byte (mb, CEE_STIND_I);
6275 if (need_convert || need_free) {
6276 /* FIXME: Optimize blittable case */
6278 guint32 label1, label2, label3;
6279 int index_var, src_ptr, loc, esize;
6281 eklass = klass->element_class;
6282 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6283 esize = sizeof (gpointer);
6284 else if (eklass == mono_defaults.char_class)
6285 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6287 esize = mono_class_native_size (eklass, NULL);
6288 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6289 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6292 mono_mb_emit_ldarg (mb, argnum);
6294 mono_mb_emit_byte (mb, CEE_LDIND_I);
6295 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6297 mono_mb_emit_ldloc (mb, conv_arg);
6298 mono_mb_emit_stloc (mb, src_ptr);
6300 /* Emit marshalling loop */
6301 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6302 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6303 mono_mb_emit_stloc (mb, index_var);
6304 label2 = mono_mb_get_label (mb);
6305 mono_mb_emit_ldloc (mb, index_var);
6306 mono_mb_emit_ldarg (mb, argnum);
6308 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6309 mono_mb_emit_byte (mb, CEE_LDLEN);
6310 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6312 /* Emit marshalling code */
6314 if (eklass == mono_defaults.stringbuilder_class) {
6315 gboolean need_free2;
6316 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6318 g_assert (conv != -1);
6321 mono_mb_emit_ldarg (mb, argnum);
6323 mono_mb_emit_byte (mb, CEE_LDIND_I);
6324 mono_mb_emit_ldloc (mb, index_var);
6325 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6328 mono_mb_emit_ldloc (mb, src_ptr);
6329 mono_mb_emit_byte (mb, CEE_LDIND_I);
6331 mono_mb_emit_icall (mb, conv_to_icall (conv));
6335 mono_mb_emit_ldloc (mb, src_ptr);
6336 mono_mb_emit_byte (mb, CEE_LDIND_I);
6338 mono_mb_emit_icall (mb, mono_marshal_free);
6341 else if (eklass == mono_defaults.string_class) {
6344 mono_mb_emit_ldloc (mb, src_ptr);
6345 mono_mb_emit_byte (mb, CEE_LDIND_I);
6347 mono_mb_emit_icall (mb, mono_marshal_free);
6352 /* set the src_ptr */
6353 mono_mb_emit_ldloc (mb, src_ptr);
6354 mono_mb_emit_stloc (mb, 0);
6357 mono_mb_emit_ldarg (mb, argnum);
6359 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6360 mono_mb_emit_ldloc (mb, index_var);
6361 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6362 mono_mb_emit_stloc (mb, 1);
6364 /* emit valuetype conversion code */
6365 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6369 mono_mb_emit_ldloc (mb, src_ptr);
6370 mono_mb_emit_stloc (mb, loc);
6371 mono_mb_emit_ldloc (mb, loc);
6373 emit_struct_free (mb, eklass, loc);
6377 mono_mb_emit_add_to_local (mb, index_var, 1);
6378 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6380 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6382 mono_mb_patch_branch (mb, label1);
6383 mono_mb_patch_branch (mb, label3);
6386 if (klass->element_class->blittable) {
6387 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6389 mono_mb_emit_ldarg (mb, argnum);
6391 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6392 mono_mb_emit_ldloc (mb, conv_arg);
6393 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6398 case MARSHAL_ACTION_PUSH:
6400 mono_mb_emit_ldloc_addr (mb, conv_arg);
6402 mono_mb_emit_ldloc (mb, conv_arg);
6405 case MARSHAL_ACTION_CONV_RESULT:
6406 /* fixme: we need conversions here */
6407 mono_mb_emit_stloc (mb, 3);
6410 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6412 guint32 label1, label2, label3;
6413 int index_var, src_ptr, esize, param_num, num_elem;
6414 MonoMarshalConv conv;
6415 gboolean is_string = FALSE;
6417 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6418 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6421 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6422 mono_mb_emit_exception_marshal_directive (mb, msg);
6426 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6427 mono_mb_emit_exception_marshal_directive (mb, msg);
6430 if (spec->native != MONO_NATIVE_LPARRAY) {
6431 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6432 mono_mb_emit_exception_marshal_directive (mb, msg);
6436 /* FIXME: t is from the method which is wrapped, not the delegate type */
6437 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6439 param_num = spec->data.array_data.param_num;
6440 num_elem = spec->data.array_data.num_elem;
6441 if (spec->data.array_data.elem_mult == 0)
6442 /* param_num is not specified */
6445 if (param_num == -1) {
6446 if (num_elem <= 0) {
6447 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6448 mono_mb_emit_exception_marshal_directive (mb, msg);
6453 /* FIXME: Optimize blittable case */
6455 eklass = klass->element_class;
6456 if (eklass == mono_defaults.string_class) {
6458 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6460 else if (eklass == mono_defaults.stringbuilder_class) {
6462 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6465 conv = (MonoMarshalConv)-1;
6467 mono_marshal_load_type_info (eklass);
6470 esize = sizeof (gpointer);
6472 esize = mono_class_native_size (eklass, NULL);
6473 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6475 mono_mb_emit_byte (mb, CEE_LDNULL);
6476 mono_mb_emit_stloc (mb, conv_arg);
6478 /* Check param index */
6479 if (param_num != -1) {
6480 if (param_num >= m->sig->param_count) {
6481 char *msg = g_strdup ("Array size control parameter index is out of range.");
6482 mono_mb_emit_exception_marshal_directive (mb, msg);
6485 switch (m->sig->params [param_num]->type) {
6498 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6499 mono_mb_emit_exception_marshal_directive (mb, msg);
6506 mono_mb_emit_ldarg (mb, argnum);
6507 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6509 mono_mb_emit_ldarg (mb, argnum);
6510 mono_mb_emit_stloc (mb, src_ptr);
6512 /* Create managed array */
6514 * The LPArray marshalling spec says that sometimes param_num starts
6515 * from 1, sometimes it starts from 0. But MS seems to allways start
6519 if (param_num == -1) {
6520 mono_mb_emit_icon (mb, num_elem);
6522 mono_mb_emit_ldarg (mb, param_num);
6524 mono_mb_emit_icon (mb, num_elem);
6525 mono_mb_emit_byte (mb, CEE_ADD);
6527 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6530 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6531 mono_mb_emit_stloc (mb, conv_arg);
6533 if (eklass->blittable) {
6534 mono_mb_emit_ldloc (mb, conv_arg);
6535 mono_mb_emit_byte (mb, CEE_CONV_I);
6536 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6537 mono_mb_emit_byte (mb, CEE_ADD);
6538 mono_mb_emit_ldarg (mb, argnum);
6539 mono_mb_emit_ldloc (mb, conv_arg);
6540 mono_mb_emit_byte (mb, CEE_LDLEN);
6541 mono_mb_emit_icon (mb, esize);
6542 mono_mb_emit_byte (mb, CEE_MUL);
6543 mono_mb_emit_byte (mb, CEE_PREFIX1);
6544 mono_mb_emit_byte (mb, CEE_CPBLK);
6548 /* Emit marshalling loop */
6549 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6550 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6551 mono_mb_emit_stloc (mb, index_var);
6552 label2 = mono_mb_get_label (mb);
6553 mono_mb_emit_ldloc (mb, index_var);
6554 mono_mb_emit_ldloc (mb, conv_arg);
6555 mono_mb_emit_byte (mb, CEE_LDLEN);
6556 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6558 /* Emit marshalling code */
6560 g_assert (conv != -1);
6562 mono_mb_emit_ldloc (mb, conv_arg);
6563 mono_mb_emit_ldloc (mb, index_var);
6565 mono_mb_emit_ldloc (mb, src_ptr);
6566 mono_mb_emit_byte (mb, CEE_LDIND_I);
6568 mono_mb_emit_icall (mb, conv_to_icall (conv));
6569 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6572 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6573 mono_mb_emit_exception_marshal_directive (mb, msg);
6577 mono_mb_emit_add_to_local (mb, index_var, 1);
6578 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6580 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6582 mono_mb_patch_branch (mb, label1);
6583 mono_mb_patch_branch (mb, label3);
6587 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6589 guint32 label1, label2, label3;
6590 int index_var, dest_ptr, esize, param_num, num_elem;
6591 MonoMarshalConv conv;
6592 gboolean is_string = FALSE;
6595 /* Already handled in CONV_IN */
6598 /* These are already checked in CONV_IN */
6599 g_assert (!t->byref);
6600 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6601 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6603 param_num = spec->data.array_data.param_num;
6604 num_elem = spec->data.array_data.num_elem;
6606 if (spec->data.array_data.elem_mult == 0)
6607 /* param_num is not specified */
6610 if (param_num == -1) {
6611 if (num_elem <= 0) {
6612 g_assert_not_reached ();
6616 /* FIXME: Optimize blittable case */
6618 eklass = klass->element_class;
6619 if (eklass == mono_defaults.string_class) {
6621 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6623 else if (eklass == mono_defaults.stringbuilder_class) {
6625 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6628 conv = (MonoMarshalConv)-1;
6630 mono_marshal_load_type_info (eklass);
6633 esize = sizeof (gpointer);
6635 esize = mono_class_native_size (eklass, NULL);
6637 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6640 mono_mb_emit_ldloc (mb, conv_arg);
6641 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6643 mono_mb_emit_ldarg (mb, argnum);
6644 mono_mb_emit_stloc (mb, dest_ptr);
6646 if (eklass->blittable) {
6648 mono_mb_emit_ldarg (mb, argnum);
6650 mono_mb_emit_ldloc (mb, conv_arg);
6651 mono_mb_emit_byte (mb, CEE_CONV_I);
6652 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6653 mono_mb_emit_byte (mb, CEE_ADD);
6655 mono_mb_emit_ldloc (mb, conv_arg);
6656 mono_mb_emit_byte (mb, CEE_LDLEN);
6657 mono_mb_emit_icon (mb, esize);
6658 mono_mb_emit_byte (mb, CEE_MUL);
6659 mono_mb_emit_byte (mb, CEE_PREFIX1);
6660 mono_mb_emit_byte (mb, CEE_CPBLK);
6664 /* Emit marshalling loop */
6665 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6666 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6667 mono_mb_emit_stloc (mb, index_var);
6668 label2 = mono_mb_get_label (mb);
6669 mono_mb_emit_ldloc (mb, index_var);
6670 mono_mb_emit_ldloc (mb, conv_arg);
6671 mono_mb_emit_byte (mb, CEE_LDLEN);
6672 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6674 /* Emit marshalling code */
6676 g_assert (conv != -1);
6679 mono_mb_emit_ldloc (mb, dest_ptr);
6682 mono_mb_emit_ldloc (mb, conv_arg);
6683 mono_mb_emit_ldloc (mb, index_var);
6685 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6687 mono_mb_emit_icall (mb, conv_to_icall (conv));
6688 mono_mb_emit_byte (mb, CEE_STIND_I);
6691 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6692 mono_mb_emit_exception_marshal_directive (mb, msg);
6696 mono_mb_emit_add_to_local (mb, index_var, 1);
6697 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6699 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6701 mono_mb_patch_branch (mb, label1);
6702 mono_mb_patch_branch (mb, label3);
6706 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6708 guint32 label1, label2, label3;
6709 int index_var, src, dest, esize;
6710 MonoMarshalConv conv = (MonoMarshalConv)-1;
6711 gboolean is_string = FALSE;
6713 g_assert (!t->byref);
6715 eklass = klass->element_class;
6717 mono_marshal_load_type_info (eklass);
6719 if (eklass == mono_defaults.string_class) {
6721 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6724 g_assert_not_reached ();
6728 esize = sizeof (gpointer);
6729 else if (eklass == mono_defaults.char_class)
6730 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6732 esize = mono_class_native_size (eklass, NULL);
6734 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6735 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6737 mono_mb_emit_stloc (mb, src);
6738 mono_mb_emit_ldloc (mb, src);
6739 mono_mb_emit_stloc (mb, 3);
6741 /* Check for null */
6742 mono_mb_emit_ldloc (mb, src);
6743 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6745 /* Allocate native array */
6746 mono_mb_emit_icon (mb, esize);
6747 mono_mb_emit_ldloc (mb, src);
6748 mono_mb_emit_byte (mb, CEE_LDLEN);
6750 if (eklass == mono_defaults.string_class) {
6751 /* Make the array bigger for the terminating null */
6752 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6753 mono_mb_emit_byte (mb, CEE_ADD);
6755 mono_mb_emit_byte (mb, CEE_MUL);
6756 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6757 mono_mb_emit_stloc (mb, dest);
6758 mono_mb_emit_ldloc (mb, dest);
6759 mono_mb_emit_stloc (mb, 3);
6761 /* Emit marshalling loop */
6762 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6763 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6764 mono_mb_emit_stloc (mb, index_var);
6765 label2 = mono_mb_get_label (mb);
6766 mono_mb_emit_ldloc (mb, index_var);
6767 mono_mb_emit_ldloc (mb, src);
6768 mono_mb_emit_byte (mb, CEE_LDLEN);
6769 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6771 /* Emit marshalling code */
6773 g_assert (conv != -1);
6776 mono_mb_emit_ldloc (mb, dest);
6779 mono_mb_emit_ldloc (mb, src);
6780 mono_mb_emit_ldloc (mb, index_var);
6782 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6784 mono_mb_emit_icall (mb, conv_to_icall (conv));
6785 mono_mb_emit_byte (mb, CEE_STIND_I);
6788 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6789 mono_mb_emit_exception_marshal_directive (mb, msg);
6793 mono_mb_emit_add_to_local (mb, index_var, 1);
6794 mono_mb_emit_add_to_local (mb, dest, esize);
6796 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6798 mono_mb_patch_branch (mb, label3);
6799 mono_mb_patch_branch (mb, label1);
6803 g_assert_not_reached ();
6810 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6813 return &mono_defaults.int32_class->byval_arg;
6815 switch (spec->native) {
6816 case MONO_NATIVE_I1:
6817 case MONO_NATIVE_U1:
6818 return &mono_defaults.byte_class->byval_arg;
6819 case MONO_NATIVE_VARIANTBOOL:
6820 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6821 return &mono_defaults.int16_class->byval_arg;
6822 case MONO_NATIVE_BOOLEAN:
6823 return &mono_defaults.int32_class->byval_arg;
6825 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6826 return &mono_defaults.int32_class->byval_arg;
6832 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6834 MonoClass* conv_arg_class = mono_defaults.int32_class;
6836 switch (spec->native) {
6837 case MONO_NATIVE_I1:
6838 case MONO_NATIVE_U1:
6839 conv_arg_class = mono_defaults.byte_class;
6840 if (ldop) *ldop = CEE_LDIND_I1;
6842 case MONO_NATIVE_VARIANTBOOL:
6843 conv_arg_class = mono_defaults.int16_class;
6844 if (ldop) *ldop = CEE_LDIND_I2;
6846 case MONO_NATIVE_BOOLEAN:
6849 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6852 return conv_arg_class;
6856 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6857 MonoMarshalSpec *spec,
6858 int conv_arg, MonoType **conv_arg_type,
6859 MarshalAction action)
6863 case MARSHAL_ACTION_CONV_IN:
6865 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6867 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6870 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6871 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6873 *conv_arg_type = &conv_arg_class->this_arg;
6875 *conv_arg_type = &conv_arg_class->byval_arg;
6881 MonoMethodBuilder *mb = m->mb;
6884 case MARSHAL_ACTION_CONV_IN: {
6885 MonoType *local_type;
6887 guint8 ldc_op = CEE_LDC_I4_1;
6889 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6891 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6893 *conv_arg_type = local_type;
6894 conv_arg = mono_mb_add_local (mb, local_type);
6896 mono_mb_emit_ldarg (mb, argnum);
6898 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6899 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6900 mono_mb_emit_byte (mb, ldc_op);
6901 mono_mb_emit_stloc (mb, conv_arg);
6902 mono_mb_patch_branch (mb, label_false);
6907 case MARSHAL_ACTION_CONV_OUT:
6909 int label_false, label_end;
6913 mono_mb_emit_ldarg (mb, argnum);
6914 mono_mb_emit_ldloc (mb, conv_arg);
6916 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6917 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6919 label_end = mono_mb_emit_branch (mb, CEE_BR);
6920 mono_mb_patch_branch (mb, label_false);
6921 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6922 mono_mb_patch_branch (mb, label_end);
6924 mono_mb_emit_byte (mb, CEE_STIND_I1);
6928 case MARSHAL_ACTION_PUSH:
6930 mono_mb_emit_ldloc_addr (mb, conv_arg);
6932 mono_mb_emit_ldloc (mb, conv_arg);
6934 mono_mb_emit_ldarg (mb, argnum);
6937 case MARSHAL_ACTION_CONV_RESULT:
6938 /* maybe we need to make sure that it fits within 8 bits */
6939 mono_mb_emit_stloc (mb, 3);
6942 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6943 MonoClass* conv_arg_class = mono_defaults.int32_class;
6944 guint8 ldop = CEE_LDIND_I4;
6945 int label_null, label_false;
6947 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6948 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6951 *conv_arg_type = &conv_arg_class->this_arg;
6953 *conv_arg_type = &conv_arg_class->byval_arg;
6956 mono_mb_emit_ldarg (mb, argnum);
6960 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6961 mono_mb_emit_ldarg (mb, argnum);
6962 mono_mb_emit_byte (mb, ldop);
6966 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6967 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6968 mono_mb_emit_stloc (mb, conv_arg);
6969 mono_mb_patch_branch (mb, label_false);
6972 mono_mb_patch_branch (mb, label_null);
6976 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6977 guint8 stop = CEE_STIND_I4;
6978 guint8 ldc_op = CEE_LDC_I4_1;
6979 int label_null,label_false, label_end;;
6984 switch (spec->native) {
6985 case MONO_NATIVE_I1:
6986 case MONO_NATIVE_U1:
6987 stop = CEE_STIND_I1;
6989 case MONO_NATIVE_VARIANTBOOL:
6990 stop = CEE_STIND_I2;
6991 ldc_op = CEE_LDC_I4_M1;
6999 mono_mb_emit_ldarg (mb, argnum);
7000 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7002 mono_mb_emit_ldarg (mb, argnum);
7003 mono_mb_emit_ldloc (mb, conv_arg);
7005 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7006 mono_mb_emit_byte (mb, ldc_op);
7007 label_end = mono_mb_emit_branch (mb, CEE_BR);
7009 mono_mb_patch_branch (mb, label_false);
7010 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7011 mono_mb_patch_branch (mb, label_end);
7013 mono_mb_emit_byte (mb, stop);
7014 mono_mb_patch_branch (mb, label_null);
7019 g_assert_not_reached ();
7026 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7027 MonoMarshalSpec *spec, int conv_arg,
7028 MonoType **conv_arg_type, MarshalAction action)
7031 MonoMethodBuilder *mb = m->mb;
7034 case MARSHAL_ACTION_CONV_IN:
7035 /* MS seems to allow this in some cases, ie. bxc #158 */
7037 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7038 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7039 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7044 case MARSHAL_ACTION_PUSH:
7045 mono_mb_emit_ldarg (mb, argnum);
7048 case MARSHAL_ACTION_CONV_RESULT:
7049 /* no conversions necessary */
7050 mono_mb_emit_stloc (mb, 3);
7061 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7062 MonoMarshalSpec *spec, int conv_arg,
7063 MonoType **conv_arg_type, MarshalAction action)
7066 MonoMethodBuilder *mb = m->mb;
7069 case MARSHAL_ACTION_PUSH:
7070 /* fixme: dont know how to marshal that. We cant simply
7071 * convert it to a one byte UTF8 character, because an
7072 * unicode character may need more that one byte in UTF8 */
7073 mono_mb_emit_ldarg (mb, argnum);
7076 case MARSHAL_ACTION_CONV_RESULT:
7077 /* fixme: we need conversions here */
7078 mono_mb_emit_stloc (mb, 3);
7089 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7090 MonoMarshalSpec *spec, int conv_arg,
7091 MonoType **conv_arg_type, MarshalAction action)
7094 MonoMethodBuilder *mb = m->mb;
7097 case MARSHAL_ACTION_PUSH:
7098 mono_mb_emit_ldarg (mb, argnum);
7101 case MARSHAL_ACTION_CONV_RESULT:
7102 /* no conversions necessary */
7103 mono_mb_emit_stloc (mb, 3);
7114 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7115 MonoMarshalSpec *spec, int conv_arg,
7116 MonoType **conv_arg_type, MarshalAction action)
7118 /* Ensure that we have marshalling info for this param */
7119 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7121 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7122 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7124 if (spec && spec->native == MONO_NATIVE_ASANY)
7125 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7128 case MONO_TYPE_VALUETYPE:
7129 if (t->data.klass == mono_defaults.handleref_class)
7130 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7132 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7133 case MONO_TYPE_STRING:
7134 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7135 case MONO_TYPE_CLASS:
7136 case MONO_TYPE_OBJECT:
7138 if (spec && spec->native == MONO_NATIVE_STRUCT)
7139 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7141 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7142 spec->native == MONO_NATIVE_IDISPATCH ||
7143 spec->native == MONO_NATIVE_INTERFACE))
7144 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7145 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7146 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7147 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7148 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7151 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7152 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7153 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7155 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7156 case MONO_TYPE_ARRAY:
7157 case MONO_TYPE_SZARRAY:
7158 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7159 case MONO_TYPE_BOOLEAN:
7160 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7162 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7163 case MONO_TYPE_CHAR:
7164 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7177 case MONO_TYPE_FNPTR:
7178 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7179 case MONO_TYPE_GENERICINST:
7180 if (mono_type_generic_inst_is_valuetype (t))
7181 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7183 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7191 * mono_marshal_emit_native_wrapper:
7192 * @image: the image to use for looking up custom marshallers
7193 * @sig: The signature of the native function
7194 * @piinfo: Marshalling information
7195 * @mspecs: Marshalling information
7196 * @aot: whenever the created method will be compiled by the AOT compiler
7197 * @method: if non-NULL, the pinvoke method to call
7198 * @check_exceptions: Whenever to check for pending exceptions after the native call
7199 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7201 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7204 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)
7206 EmitMarshalContext m;
7207 MonoMethodSignature *csig;
7209 int i, argnum, *tmp_locals;
7210 int type, param_shift = 0;
7211 static MonoMethodSignature *get_last_error_sig = NULL;
7212 int coop_gc_stack_dummy, coop_gc_var;
7214 memset (&m, 0, sizeof (m));
7219 /* we copy the signature, so that we can set pinvoke to 0 */
7221 /* The function address is passed as the first argument */
7222 g_assert (!sig->hasthis);
7225 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7233 /* we allocate local for use with emit_struct_conv() */
7234 /* allocate local 0 (pointer) src_ptr */
7235 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7236 /* allocate local 1 (pointer) dst_ptr */
7237 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7238 /* allocate local 2 (boolean) delete_old */
7239 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7241 /* delete_old = FALSE */
7242 mono_mb_emit_icon (mb, 0);
7243 mono_mb_emit_stloc (mb, 2);
7245 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7246 /* allocate local 3 to store the return value */
7247 mono_mb_add_local (mb, sig->ret);
7250 if (mono_threads_is_coop_enabled ()) {
7251 /* local 4, dummy local used to get a stack address for suspend funcs */
7252 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7253 /* local 5, the local to be used when calling the suspend funcs */
7254 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7257 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7258 /* Return type custom marshaling */
7260 * Since we can't determine the return type of the unmanaged function,
7261 * we assume it returns a pointer, and pass that pointer to
7262 * MarshalNativeToManaged.
7264 csig->ret = &mono_defaults.int_class->byval_arg;
7267 /* we first do all conversions */
7268 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7269 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7271 for (i = 0; i < sig->param_count; i ++) {
7272 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7275 /* push all arguments */
7278 mono_mb_emit_byte (mb, CEE_LDARG_0);
7280 for (i = 0; i < sig->param_count; i++) {
7281 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7284 if (mono_threads_is_coop_enabled ()) {
7285 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7286 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7287 mono_mb_emit_stloc (mb, coop_gc_var);
7290 /* call the native method */
7292 mono_mb_emit_byte (mb, CEE_LDARG_0);
7293 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7294 mono_mb_emit_byte (mb, CEE_LDIND_I);
7295 mono_mb_emit_calli (mb, csig);
7296 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7298 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7300 g_assert_not_reached ();
7305 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7306 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7307 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7308 mono_mb_emit_calli (mb, csig);
7310 mono_mb_emit_native_call (mb, csig, func);
7314 /* Set LastError if needed */
7315 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7316 if (!get_last_error_sig) {
7317 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7318 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7319 get_last_error_sig->pinvoke = 1;
7324 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7325 * clobber its value.
7327 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7328 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7330 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7334 if (mono_threads_is_coop_enabled ()) {
7335 mono_mb_emit_ldloc (mb, coop_gc_var);
7336 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7337 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7340 /* convert the result */
7341 if (!sig->ret->byref) {
7342 MonoMarshalSpec *spec = mspecs [0];
7343 type = sig->ret->type;
7345 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7346 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7351 case MONO_TYPE_VOID:
7353 case MONO_TYPE_VALUETYPE:
7354 klass = sig->ret->data.klass;
7355 if (klass->enumtype) {
7356 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7359 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7373 case MONO_TYPE_FNPTR:
7374 case MONO_TYPE_STRING:
7375 case MONO_TYPE_CLASS:
7376 case MONO_TYPE_OBJECT:
7377 case MONO_TYPE_BOOLEAN:
7378 case MONO_TYPE_ARRAY:
7379 case MONO_TYPE_SZARRAY:
7380 case MONO_TYPE_CHAR:
7382 case MONO_TYPE_GENERICINST:
7383 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7385 case MONO_TYPE_TYPEDBYREF:
7387 g_warning ("return type 0x%02x unknown", sig->ret->type);
7388 g_assert_not_reached ();
7392 mono_mb_emit_stloc (mb, 3);
7396 * Need to call this after converting the result since MONO_VTADDR needs
7397 * to be adjacent to the call instruction.
7399 if (check_exceptions)
7400 emit_thread_interrupt_checkpoint (mb);
7402 /* we need to convert byref arguments back and free string arrays */
7403 for (i = 0; i < sig->param_count; i++) {
7404 MonoType *t = sig->params [i];
7405 MonoMarshalSpec *spec = mspecs [i + 1];
7407 argnum = i + param_shift;
7409 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7410 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7415 case MONO_TYPE_STRING:
7416 case MONO_TYPE_VALUETYPE:
7417 case MONO_TYPE_CLASS:
7418 case MONO_TYPE_OBJECT:
7419 case MONO_TYPE_SZARRAY:
7420 case MONO_TYPE_BOOLEAN:
7421 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7428 if (!MONO_TYPE_IS_VOID(sig->ret))
7429 mono_mb_emit_ldloc (mb, 3);
7431 mono_mb_emit_byte (mb, CEE_RET);
7433 #endif /* DISABLE_JIT */
7436 * mono_marshal_get_native_wrapper:
7437 * @method: The MonoMethod to wrap.
7438 * @check_exceptions: Whenever to check for pending exceptions
7440 * generates IL code for the pinvoke wrapper (the generated method
7441 * calls the unmanaged code in piinfo->addr)
7442 * The wrapper info for the wrapper is a WrapperInfo structure.
7445 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7447 MonoMethodSignature *sig, *csig;
7448 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7449 MonoMethodBuilder *mb;
7450 MonoMarshalSpec **mspecs;
7453 gboolean pinvoke = FALSE;
7456 const char *exc_class = "MissingMethodException";
7457 const char *exc_arg = NULL;
7460 g_assert (method != NULL);
7461 g_assert (mono_method_signature (method)->pinvoke);
7463 GHashTable **cache_ptr;
7466 if (check_exceptions)
7467 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7469 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7471 if (check_exceptions)
7472 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7474 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7477 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7479 if ((res = mono_marshal_find_in_cache (cache, method)))
7482 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7483 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7487 return mono_cominterop_get_native_wrapper (method);
7489 g_assert_not_reached ();
7493 sig = mono_method_signature (method);
7495 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7496 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7499 if (!piinfo->addr) {
7501 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7502 exc_arg = "Method contains unsupported native code";
7504 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7506 piinfo->addr = mono_lookup_internal_call (method);
7510 /* hack - redirect certain string constructors to CreateString */
7511 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7512 g_assert (!pinvoke);
7513 g_assert (method->string_ctor);
7514 g_assert (sig->hasthis);
7516 /* CreateString returns a value */
7517 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7518 csig->ret = &mono_defaults.string_class->byval_arg;
7522 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7523 if (!strcmp ("CreateString", res->name) &&
7524 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7527 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7528 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7530 /* create a wrapper to preserve .ctor in stack trace */
7531 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7534 mono_mb_emit_byte (mb, CEE_LDARG_0);
7535 for (i = 1; i <= csig->param_count; i++)
7536 mono_mb_emit_ldarg (mb, i);
7537 mono_mb_emit_managed_call (mb, res, NULL);
7538 mono_mb_emit_byte (mb, CEE_RET);
7541 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7542 info->d.string_ctor.method = method;
7544 /* use native_wrapper_cache because internal calls are looked up there */
7545 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7546 csig->param_count + 1, info, NULL);
7553 /* exception will be thrown */
7554 piinfo->addr = NULL;
7555 g_warning ("cannot find CreateString for .ctor");
7558 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7560 mb->method->save_lmf = 1;
7563 * In AOT mode and embedding scenarios, it is possible that the icall is not
7564 * registered in the runtime doing the AOT compilation.
7566 if (!piinfo->addr && !aot) {
7568 mono_mb_emit_exception (mb, exc_class, exc_arg);
7570 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7571 info->d.managed_to_native.method = method;
7573 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7575 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7576 csig->param_count + 16, info, NULL);
7582 /* internal calls: we simply push all arguments and call the method (no conversions) */
7583 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7585 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7587 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7589 /* hack - string constructors returns a value */
7590 if (method->string_ctor)
7591 csig->ret = &mono_defaults.string_class->byval_arg;
7598 * Add a null check since public icalls can be called with 'call' which
7599 * does no such check.
7601 mono_mb_emit_byte (mb, CEE_LDARG_0);
7602 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7603 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7604 mono_mb_patch_branch (mb, pos);
7606 mono_mb_emit_byte (mb, CEE_LDARG_0);
7609 for (i = 0; i < sig->param_count; i++)
7610 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7613 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7614 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7615 mono_mb_emit_calli (mb, csig);
7617 g_assert (piinfo->addr);
7618 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7620 if (check_exceptions)
7621 emit_thread_interrupt_checkpoint (mb);
7622 mono_mb_emit_byte (mb, CEE_RET);
7624 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7625 info->d.managed_to_native.method = method;
7627 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7629 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7638 g_assert (piinfo->addr);
7641 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7642 mono_method_get_marshal_info (method, mspecs);
7644 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7646 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7647 info->d.managed_to_native.method = method;
7649 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7651 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7656 for (i = sig->param_count; i >= 0; i--)
7658 mono_metadata_free_marshal_spec (mspecs [i]);
7662 /* mono_method_print_code (res); */
7668 * mono_marshal_get_native_func_wrapper:
7669 * @image: The image to use for memory allocation and for looking up custom marshallers.
7670 * @sig: The signature of the function
7671 * @func: The native function to wrap
7673 * Returns a wrapper method around native functions, similar to the pinvoke
7677 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7678 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7680 MonoMethodSignature *csig;
7682 SignaturePointerPair key, *new_key;
7683 MonoMethodBuilder *mb;
7692 // Generic types are not safe to place in MonoImage caches.
7693 g_assert (!sig->is_inflated);
7695 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7696 if ((res = mono_marshal_find_in_cache (cache, &key)))
7699 name = g_strdup_printf ("wrapper_native_%p", func);
7700 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7701 mb->method->save_lmf = 1;
7704 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7707 csig = mono_metadata_signature_dup_full (image, sig);
7710 new_key = g_new (SignaturePointerPair,1);
7711 new_key->sig = csig;
7712 new_key->pointer = func;
7714 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7720 mono_marshal_set_wrapper_info (res, NULL);
7726 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7730 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7732 MonoMethodSignature *sig, *csig;
7733 MonoMethodBuilder *mb;
7738 MonoMethodPInvoke mpiinfo;
7739 MonoMethodPInvoke *piinfo = &mpiinfo;
7740 MonoMarshalSpec **mspecs;
7741 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7742 MonoImage *image = invoke->klass->image;
7745 // FIXME: include UnmanagedFunctionPointerAttribute info
7748 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7750 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7752 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7755 memset (&mpiinfo, 0, sizeof (mpiinfo));
7756 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7758 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7759 mono_method_get_marshal_info (invoke, mspecs);
7760 /* Freed below so don't alloc from mempool */
7761 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7764 name = g_strdup_printf ("wrapper_aot_native");
7765 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7766 mb->method->save_lmf = 1;
7769 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7772 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7773 info->d.managed_to_native.method = invoke;
7775 g_assert (!sig->hasthis);
7776 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7778 res = mono_mb_create_and_cache_full (cache, invoke,
7779 mb, csig, csig->param_count + 16,
7783 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7785 mono_metadata_free_marshal_spec (mspecs [i]);
7793 * mono_marshal_emit_managed_wrapper:
7795 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7796 * the delegate which wraps the managed method to be called. For closed delegates,
7797 * it could have fewer parameters than the method it wraps.
7798 * THIS_LOC is the memory location where the target of the delegate is stored.
7801 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7804 MonoMethodSignature *sig, *csig;
7810 /* we first do all conversions */
7811 for (i = 0; i < sig->param_count; i ++) {
7812 MonoType *t = sig->params [i];
7815 case MONO_TYPE_OBJECT:
7816 case MONO_TYPE_CLASS:
7817 case MONO_TYPE_VALUETYPE:
7818 case MONO_TYPE_ARRAY:
7819 case MONO_TYPE_SZARRAY:
7820 case MONO_TYPE_STRING:
7821 case MONO_TYPE_BOOLEAN:
7822 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7826 if (!sig->ret->byref) {
7827 switch (sig->ret->type) {
7828 case MONO_TYPE_STRING:
7829 csig->ret = &mono_defaults.int_class->byval_arg;
7836 MonoMethodSignature *sig, *csig;
7837 MonoExceptionClause *clause;
7840 gboolean closed = FALSE;
7845 /* allocate local 0 (pointer) src_ptr */
7846 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7847 /* allocate local 1 (pointer) dst_ptr */
7848 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7849 /* allocate local 2 (boolean) delete_old */
7850 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7852 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7853 /* Closed delegate */
7854 g_assert (sig->param_count == invoke_sig->param_count + 1);
7856 /* Use a new signature without the first argument */
7857 sig = mono_metadata_signature_dup (sig);
7858 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7859 sig->param_count --;
7862 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7863 /* allocate local 3 to store the return value */
7864 mono_mb_add_local (mb, sig->ret);
7869 * mono_jit_attach ();
7873 * ret = method (...);
7875 * mono_jit_detach ();
7881 if (mono_threads_is_coop_enabled ()) {
7882 clause = g_new0 (MonoExceptionClause, 1);
7883 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7886 mono_mb_emit_icon (mb, 0);
7887 mono_mb_emit_stloc (mb, 2);
7889 if (mono_threads_is_coop_enabled ()) {
7891 clause->try_offset = mono_mb_get_label (mb);
7895 * Might need to attach the thread to the JIT or change the
7896 * domain for the callback.
7898 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
7900 * mono_jit_attach ();
7902 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7903 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7905 /* <interrupt check> */
7906 emit_thread_interrupt_checkpoint (mb);
7908 /* we first do all conversions */
7909 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7910 for (i = 0; i < sig->param_count; i ++) {
7911 MonoType *t = sig->params [i];
7914 case MONO_TYPE_OBJECT:
7915 case MONO_TYPE_CLASS:
7916 case MONO_TYPE_VALUETYPE:
7917 case MONO_TYPE_ARRAY:
7918 case MONO_TYPE_SZARRAY:
7919 case MONO_TYPE_STRING:
7920 case MONO_TYPE_BOOLEAN:
7921 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7931 if (target_handle) {
7932 mono_mb_emit_icon (mb, (gint32)target_handle);
7933 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7936 g_assert_not_reached ();
7938 } else if (closed) {
7939 mono_mb_emit_icon (mb, (gint32)target_handle);
7940 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7943 for (i = 0; i < sig->param_count; i++) {
7944 MonoType *t = sig->params [i];
7946 if (tmp_locals [i]) {
7948 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7950 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7953 mono_mb_emit_ldarg (mb, i);
7956 /* ret = method (...) */
7957 mono_mb_emit_managed_call (mb, method, NULL);
7959 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7960 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7961 } else if (!sig->ret->byref) {
7962 switch (sig->ret->type) {
7963 case MONO_TYPE_VOID:
7965 case MONO_TYPE_BOOLEAN:
7968 case MONO_TYPE_CHAR:
7980 case MONO_TYPE_OBJECT:
7981 mono_mb_emit_stloc (mb, 3);
7983 case MONO_TYPE_STRING:
7984 csig->ret = &mono_defaults.int_class->byval_arg;
7985 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7987 case MONO_TYPE_VALUETYPE:
7988 case MONO_TYPE_CLASS:
7989 case MONO_TYPE_SZARRAY:
7990 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7993 g_warning ("return type 0x%02x unknown", sig->ret->type);
7994 g_assert_not_reached ();
7997 mono_mb_emit_stloc (mb, 3);
8000 /* Convert byref arguments back */
8001 for (i = 0; i < sig->param_count; i ++) {
8002 MonoType *t = sig->params [i];
8003 MonoMarshalSpec *spec = mspecs [i + 1];
8005 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8006 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8008 else if (t->byref) {
8010 case MONO_TYPE_CLASS:
8011 case MONO_TYPE_VALUETYPE:
8012 case MONO_TYPE_OBJECT:
8013 case MONO_TYPE_STRING:
8014 case MONO_TYPE_BOOLEAN:
8015 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8021 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8022 /* The [Out] information is encoded in the delegate signature */
8024 case MONO_TYPE_SZARRAY:
8025 case MONO_TYPE_CLASS:
8026 case MONO_TYPE_VALUETYPE:
8027 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8030 g_assert_not_reached ();
8035 if (mono_threads_is_coop_enabled ()) {
8036 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8039 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
8040 clause->handler_offset = mono_mb_get_label (mb);
8044 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
8046 * mono_jit_detach ();
8048 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8049 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8051 if (mono_threads_is_coop_enabled ()) {
8052 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8054 /* } [endfinally] */
8055 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8057 mono_mb_patch_branch (mb, leave_pos);
8061 if (m->retobj_var) {
8062 mono_mb_emit_ldloc (mb, m->retobj_var);
8063 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8064 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8067 if (!MONO_TYPE_IS_VOID(sig->ret))
8068 mono_mb_emit_ldloc (mb, 3);
8069 mono_mb_emit_byte (mb, CEE_RET);
8072 if (mono_threads_is_coop_enabled ()) {
8073 mono_mb_set_clauses (mb, 1, clause);
8082 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8084 MonoMethodSignature *sig;
8089 * Under windows, delegates passed to native code must use the STDCALL
8090 * calling convention.
8092 csig->call_convention = MONO_CALL_STDCALL;
8095 sig = mono_method_signature (method);
8097 /* Change default calling convention if needed */
8098 /* Why is this a modopt ? */
8099 if (sig->ret && sig->ret->num_mods) {
8100 for (i = 0; i < sig->ret->num_mods; ++i) {
8102 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8103 g_assert (mono_error_ok (&error));
8104 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8105 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8106 csig->call_convention = MONO_CALL_C;
8107 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8108 csig->call_convention = MONO_CALL_STDCALL;
8109 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8110 csig->call_convention = MONO_CALL_FASTCALL;
8111 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8112 csig->call_convention = MONO_CALL_THISCALL;
8119 * generates IL code to call managed methods from unmanaged code
8120 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8123 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8125 MonoMethodSignature *sig, *csig, *invoke_sig;
8126 MonoMethodBuilder *mb;
8127 MonoMethod *res, *invoke;
8128 MonoMarshalSpec **mspecs;
8129 MonoMethodPInvoke piinfo;
8132 EmitMarshalContext m;
8134 g_assert (method != NULL);
8135 g_assert (!mono_method_signature (method)->pinvoke);
8138 * FIXME: Should cache the method+delegate type pair, since the same method
8139 * could be called with different delegates, thus different marshalling
8142 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8144 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8147 invoke = mono_get_delegate_invoke (delegate_klass);
8148 invoke_sig = mono_method_signature (invoke);
8150 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8151 mono_method_get_marshal_info (invoke, mspecs);
8153 sig = mono_method_signature (method);
8155 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8157 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8158 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8160 /* we copy the signature, so that we can modify it */
8162 /* Need to free this later */
8163 csig = mono_metadata_signature_dup (invoke_sig);
8165 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8169 memset (&m, 0, sizeof (m));
8175 m.image = method->klass->image;
8177 mono_marshal_set_callconv_from_modopt (invoke, csig);
8179 /* The attribute is only available in Net 2.0 */
8180 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8181 MonoCustomAttrInfo *cinfo;
8182 MonoCustomAttrEntry *attr;
8185 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8186 * contents of the attribute without constructing it, as that might not be
8187 * possible when running in cross-compiling mode.
8189 cinfo = mono_custom_attrs_from_class (delegate_klass);
8192 for (i = 0; i < cinfo->num_attrs; ++i) {
8193 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8194 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8195 attr = &cinfo->attrs [i];
8201 MonoArray *typed_args, *named_args;
8202 CattrNamedArg *arginfo;
8206 MonoBoolean set_last_error = 0;
8209 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8210 g_assert (mono_error_ok (&error));
8211 g_assert (mono_array_length (typed_args) == 1);
8214 o = mono_array_get (typed_args, MonoObject*, 0);
8215 call_conv = *(gint32*)mono_object_unbox (o);
8218 for (i = 0; i < mono_array_length (named_args); ++i) {
8219 CattrNamedArg *narg = &arginfo [i];
8221 o = mono_array_get (named_args, MonoObject*, i);
8223 g_assert (narg->field);
8224 if (!strcmp (narg->field->name, "CharSet")) {
8225 charset = *(gint32*)mono_object_unbox (o);
8226 } else if (!strcmp (narg->field->name, "SetLastError")) {
8227 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8228 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8229 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8230 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8231 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8233 g_assert_not_reached ();
8239 memset (&piinfo, 0, sizeof (piinfo));
8241 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8243 csig->call_convention = call_conv - 1;
8246 if (cinfo && !cinfo->cached)
8247 mono_custom_attrs_free (cinfo);
8250 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8252 if (!target_handle) {
8255 // FIXME: Associate it with the method+delegate_klass pair
8256 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8257 info->d.native_to_managed.method = method;
8258 info->d.native_to_managed.klass = delegate_klass;
8260 res = mono_mb_create_and_cache_full (cache, method,
8261 mb, csig, sig->param_count + 16,
8267 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8271 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8273 mono_metadata_free_marshal_spec (mspecs [i]);
8276 /* mono_method_print_code (res); */
8282 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8286 MonoMethodSignature *sig;
8287 MonoMethodBuilder *mb;
8292 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8294 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8297 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8298 MonoMethodSignature *csig;
8299 MonoMarshalSpec **mspecs;
8300 EmitMarshalContext m;
8302 sig = mono_method_signature (method);
8303 g_assert (!sig->hasthis);
8305 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8306 mono_method_get_marshal_info (method, mspecs);
8308 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8309 csig = mono_metadata_signature_dup_full (image, sig);
8313 memset (&m, 0, sizeof (m));
8321 mono_marshal_set_callconv_from_modopt (method, csig);
8323 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8325 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8330 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8333 for (i = sig->param_count; i >= 0; i--)
8335 mono_metadata_free_marshal_spec (mspecs [i]);
8338 return mono_compile_method (method);
8341 sig = mono_method_signature (method);
8342 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8344 param_count = sig->param_count + sig->hasthis;
8346 for (i = 0; i < param_count; i++)
8347 mono_mb_emit_ldarg (mb, i);
8349 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8350 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8352 mono_mb_emit_op (mb, CEE_CALL, method);
8353 mono_mb_emit_byte (mb, CEE_RET);
8358 method = mono_mb_create (mb, sig, param_count, NULL);
8361 return mono_compile_method (method);
8367 * The code directly following this is the cache hit, value positive branch
8369 * This function takes a new method builder with 0 locals and adds two locals
8370 * to create multiple out-branches and the fall through state of having the object
8371 * on the stack after a cache miss
8374 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8375 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8376 MonoMethodBuilder *mb)
8380 /* allocate local 0 (pointer) obj_vtable */
8381 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8382 /* allocate local 1 (pointer) cached_vtable */
8383 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8386 mono_mb_emit_ldarg (mb, obj_arg_position);
8387 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8389 /*obj_vtable = obj->vtable;*/
8390 mono_mb_emit_ldarg (mb, obj_arg_position);
8391 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8392 mono_mb_emit_byte (mb, CEE_LDIND_I);
8393 mono_mb_emit_stloc (mb, 0);
8395 /* cached_vtable = *cache*/
8396 mono_mb_emit_ldarg (mb, cache_arg_position);
8397 mono_mb_emit_byte (mb, CEE_LDIND_I);
8398 mono_mb_emit_stloc (mb, 1);
8400 mono_mb_emit_ldloc (mb, 1);
8401 mono_mb_emit_byte (mb, CEE_LDC_I4);
8402 mono_mb_emit_i4 (mb, ~0x1);
8403 mono_mb_emit_byte (mb, CEE_CONV_I);
8404 mono_mb_emit_byte (mb, CEE_AND);
8405 mono_mb_emit_ldloc (mb, 0);
8406 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8407 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8409 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8410 mono_mb_emit_ldloc (mb, 1);
8411 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8412 mono_mb_emit_byte (mb, CEE_CONV_U);
8413 mono_mb_emit_byte (mb, CEE_AND);
8414 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8415 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8418 mono_mb_patch_branch (mb, cache_miss_pos);
8421 mono_mb_emit_ldarg (mb, obj_arg_position);
8422 mono_mb_emit_ldarg (mb, class_arg_position);
8423 mono_mb_emit_ldarg (mb, cache_arg_position);
8424 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8427 #endif /* DISABLE_JIT */
8430 * This does the equivalent of mono_object_castclass_with_cache.
8431 * The wrapper info for the wrapper is a WrapperInfo structure.
8434 mono_marshal_get_castclass_with_cache (void)
8436 static MonoMethod *cached;
8438 MonoMethodBuilder *mb;
8439 MonoMethodSignature *sig;
8440 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8443 const int obj_arg_position = 0;
8444 const int class_arg_position = 1;
8445 const int cache_arg_position = 2;
8450 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8451 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8452 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8453 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8454 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8455 sig->ret = &mono_defaults.object_class->byval_arg;
8459 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8460 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8461 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8464 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8465 mono_mb_emit_ldarg (mb, obj_arg_position);
8466 mono_mb_emit_byte (mb, CEE_RET);
8469 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8470 mono_mb_patch_branch (mb, invalid_cast_pos);
8471 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8474 mono_mb_patch_branch (mb, return_null_pos);
8475 mono_mb_emit_byte (mb, CEE_LDNULL);
8476 mono_mb_emit_byte (mb, CEE_RET);
8477 #endif /* DISABLE_JIT */
8479 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8480 res = mono_mb_create (mb, sig, 8, info);
8483 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8484 mono_free_method (res);
8485 mono_metadata_free_method_signature (sig);
8493 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8495 MonoObject *isinst = mono_object_isinst (obj, klass);
8497 #ifndef DISABLE_REMOTING
8498 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8502 uintptr_t cache_update = (uintptr_t)obj->vtable;
8504 cache_update = cache_update | 0x1;
8506 *cache = cache_update;
8512 * This does the equivalent of mono_object_isinst_with_cache.
8513 * The wrapper info for the wrapper is a WrapperInfo structure.
8516 mono_marshal_get_isinst_with_cache (void)
8518 static MonoMethod *cached;
8520 MonoMethodBuilder *mb;
8521 MonoMethodSignature *sig;
8522 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8525 const int obj_arg_position = 0;
8526 const int class_arg_position = 1;
8527 const int cache_arg_position = 2;
8532 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8533 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8535 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8537 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8539 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8540 sig->ret = &mono_defaults.object_class->byval_arg;
8544 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8545 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8546 // Return the object gotten via the slow path.
8547 mono_mb_emit_byte (mb, CEE_RET);
8550 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8551 mono_mb_patch_branch (mb, return_null_pos);
8552 mono_mb_emit_byte (mb, CEE_LDNULL);
8553 mono_mb_emit_byte (mb, CEE_RET);
8556 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8557 mono_mb_emit_ldarg (mb, 0);
8558 mono_mb_emit_byte (mb, CEE_RET);
8561 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8562 res = mono_mb_create (mb, sig, 8, info);
8565 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8566 mono_free_method (res);
8567 mono_metadata_free_method_signature (sig);
8575 * mono_marshal_get_isinst:
8576 * @klass: the type of the field
8578 * This method generates a function which can be used to check if an object is
8579 * an instance of the given type, icluding the case where the object is a proxy.
8580 * The generated function has the following signature:
8581 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8584 mono_marshal_get_isinst (MonoClass *klass)
8586 static MonoMethodSignature *isint_sig = NULL;
8590 int pos_was_ok, pos_end;
8591 #ifndef DISABLE_REMOTING
8592 int pos_end2, pos_failed;
8595 MonoMethodBuilder *mb;
8597 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8598 if ((res = mono_marshal_find_in_cache (cache, klass)))
8602 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8603 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8604 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8605 isint_sig->pinvoke = 0;
8608 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8609 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8612 mb->method->save_lmf = 1;
8615 /* check if the object is a proxy that needs special cast */
8616 mono_mb_emit_ldarg (mb, 0);
8617 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8618 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8620 /* The result of MONO_CISINST can be:
8621 0) the type check succeeded
8622 1) the type check did not succeed
8623 2) a CanCastTo call is needed */
8624 #ifndef DISABLE_REMOTING
8625 mono_mb_emit_byte (mb, CEE_DUP);
8626 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8628 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8629 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8631 /* get the real proxy from the transparent proxy*/
8633 mono_mb_emit_ldarg (mb, 0);
8634 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8635 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8639 mono_mb_patch_branch (mb, pos_failed);
8640 mono_mb_emit_byte (mb, CEE_LDNULL);
8641 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8645 mono_mb_patch_branch (mb, pos_was_ok);
8646 mono_mb_emit_byte (mb, CEE_POP);
8647 mono_mb_emit_ldarg (mb, 0);
8651 mono_mb_patch_branch (mb, pos_end);
8652 mono_mb_patch_branch (mb, pos_end2);
8653 mono_mb_emit_byte (mb, CEE_RET);
8655 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8659 mono_mb_emit_byte (mb, CEE_LDNULL);
8660 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8664 mono_mb_patch_branch (mb, pos_was_ok);
8665 mono_mb_emit_ldarg (mb, 0);
8669 mono_mb_patch_branch (mb, pos_end);
8670 mono_mb_emit_byte (mb, CEE_RET);
8671 #endif /* DISABLE_REMOTING */
8672 #endif /* DISABLE_JIT */
8674 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8675 info->d.proxy.klass = klass;
8676 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8683 * mono_marshal_get_castclass:
8684 * @klass: the type of the field
8686 * This method generates a function which can be used to cast an object to
8687 * an instance of the given type, icluding the case where the object is a proxy.
8688 * The generated function has the following signature:
8689 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8690 * The wrapper info for the wrapper is a WrapperInfo structure.
8693 mono_marshal_get_castclass (MonoClass *klass)
8695 static MonoMethodSignature *castclass_sig = NULL;
8698 #ifndef DISABLE_REMOTING
8699 int pos_was_ok, pos_was_ok2;
8702 MonoMethodBuilder *mb;
8705 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8706 if ((res = mono_marshal_find_in_cache (cache, klass)))
8709 if (!castclass_sig) {
8710 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8711 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8712 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8713 castclass_sig->pinvoke = 0;
8716 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8717 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8720 mb->method->save_lmf = 1;
8723 /* check if the object is a proxy that needs special cast */
8724 mono_mb_emit_ldarg (mb, 0);
8725 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8726 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8728 /* The result of MONO_CCASTCLASS can be:
8729 0) the cast is valid
8730 1) cast of unknown proxy type
8731 or an exception if the cast is is invalid
8733 #ifndef DISABLE_REMOTING
8734 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8736 /* get the real proxy from the transparent proxy*/
8738 mono_mb_emit_ldarg (mb, 0);
8739 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8740 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8743 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8746 mono_mb_patch_branch (mb, pos_was_ok);
8747 mono_mb_patch_branch (mb, pos_was_ok2);
8749 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8750 mono_mb_emit_byte (mb, CEE_POP);
8751 #endif /* DISABLE_REMOTING */
8753 mono_mb_emit_ldarg (mb, 0);
8756 mono_mb_emit_byte (mb, CEE_RET);
8757 #endif /* DISABLE_JIT */
8759 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8761 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8769 * mono_marshal_get_struct_to_ptr:
8772 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8773 * The wrapper info for the wrapper is a WrapperInfo structure.
8776 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8778 MonoMethodBuilder *mb;
8779 static MonoMethod *stoptr = NULL;
8783 g_assert (klass != NULL);
8785 mono_marshal_load_type_info (klass);
8787 if (klass->marshal_info->str_to_ptr)
8788 return klass->marshal_info->str_to_ptr;
8791 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8794 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8797 if (klass->blittable) {
8798 mono_mb_emit_byte (mb, CEE_LDARG_1);
8799 mono_mb_emit_byte (mb, CEE_LDARG_0);
8800 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8801 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8802 mono_mb_emit_byte (mb, CEE_PREFIX1);
8803 mono_mb_emit_byte (mb, CEE_CPBLK);
8806 /* allocate local 0 (pointer) src_ptr */
8807 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8808 /* allocate local 1 (pointer) dst_ptr */
8809 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8810 /* allocate local 2 (boolean) delete_old */
8811 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8812 mono_mb_emit_byte (mb, CEE_LDARG_2);
8813 mono_mb_emit_stloc (mb, 2);
8815 /* initialize src_ptr to point to the start of object data */
8816 mono_mb_emit_byte (mb, CEE_LDARG_0);
8817 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8818 mono_mb_emit_stloc (mb, 0);
8820 /* initialize dst_ptr */
8821 mono_mb_emit_byte (mb, CEE_LDARG_1);
8822 mono_mb_emit_stloc (mb, 1);
8824 emit_struct_conv (mb, klass, FALSE);
8827 mono_mb_emit_byte (mb, CEE_RET);
8829 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8830 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8833 mono_marshal_lock ();
8834 if (!klass->marshal_info->str_to_ptr)
8835 klass->marshal_info->str_to_ptr = res;
8837 res = klass->marshal_info->str_to_ptr;
8838 mono_marshal_unlock ();
8843 * mono_marshal_get_ptr_to_struct:
8846 * generates IL code for PtrToStructure (IntPtr src, object structure)
8847 * The wrapper info for the wrapper is a WrapperInfo structure.
8850 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8852 MonoMethodBuilder *mb;
8853 static MonoMethodSignature *ptostr = NULL;
8857 g_assert (klass != NULL);
8859 mono_marshal_load_type_info (klass);
8861 if (klass->marshal_info->ptr_to_str)
8862 return klass->marshal_info->ptr_to_str;
8865 MonoMethodSignature *sig;
8867 /* Create the signature corresponding to
8868 static void PtrToStructure (IntPtr ptr, object structure);
8869 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8870 sig = mono_create_icall_signature ("void ptr object");
8871 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8873 mono_memory_barrier ();
8877 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8880 if (klass->blittable) {
8881 mono_mb_emit_byte (mb, CEE_LDARG_1);
8882 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8883 mono_mb_emit_byte (mb, CEE_LDARG_0);
8884 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8885 mono_mb_emit_byte (mb, CEE_PREFIX1);
8886 mono_mb_emit_byte (mb, CEE_CPBLK);
8889 /* allocate local 0 (pointer) src_ptr */
8890 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8891 /* allocate local 1 (pointer) dst_ptr */
8892 mono_mb_add_local (mb, &klass->this_arg);
8894 /* initialize src_ptr to point to the start of object data */
8895 mono_mb_emit_byte (mb, CEE_LDARG_0);
8896 mono_mb_emit_stloc (mb, 0);
8898 /* initialize dst_ptr */
8899 mono_mb_emit_byte (mb, CEE_LDARG_1);
8900 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8901 mono_mb_emit_stloc (mb, 1);
8903 emit_struct_conv (mb, klass, TRUE);
8906 mono_mb_emit_byte (mb, CEE_RET);
8908 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8909 res = mono_mb_create (mb, ptostr, 0, info);
8912 mono_marshal_lock ();
8913 if (!klass->marshal_info->ptr_to_str)
8914 klass->marshal_info->ptr_to_str = res;
8916 res = klass->marshal_info->ptr_to_str;
8917 mono_marshal_unlock ();
8922 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8923 * This is used to avoid infinite recursion since it is hard to determine where to
8924 * replace a method with its synchronized wrapper, and where not.
8925 * The runtime should execute METHOD instead of the wrapper.
8926 * The wrapper info for the wrapper is a WrapperInfo structure.
8929 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8931 MonoMethodBuilder *mb;
8933 MonoMethodSignature *sig;
8935 MonoGenericContext *ctx = NULL;
8936 MonoGenericContainer *container = NULL;
8938 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8939 ctx = &((MonoMethodInflated*)method)->context;
8940 method = ((MonoMethodInflated*)method)->declaring;
8941 container = mono_method_get_generic_container (method);
8943 container = method->klass->generic_container;
8944 g_assert (container);
8947 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8949 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8950 mono_mb_emit_byte (mb, CEE_RET);
8952 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8954 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8955 info->d.synchronized_inner.method = method;
8956 res = mono_mb_create (mb, sig, 0, info);
8960 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8961 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8967 * generates IL code for the synchronized wrapper: the generated method
8968 * calls METHOD while locking 'this' or the parent type.
8971 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8973 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8974 MonoMethodSignature *sig;
8975 MonoExceptionClause *clause;
8976 MonoMethodBuilder *mb;
8980 int i, pos, pos2, this_local, taken_local, ret_local = 0;
8981 MonoGenericContext *ctx = NULL;
8982 MonoMethod *orig_method = NULL;
8983 MonoGenericContainer *container = NULL;
8987 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8990 /* FIXME: Support generic methods too */
8991 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8992 orig_method = method;
8993 ctx = &((MonoMethodInflated*)method)->context;
8994 method = ((MonoMethodInflated*)method)->declaring;
8995 container = mono_method_get_generic_container (method);
8997 container = method->klass->generic_container;
8998 g_assert (container);
9005 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9006 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9010 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9011 if ((res = mono_marshal_find_in_cache (cache, method)))
9015 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9018 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9020 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9021 info->d.synchronized.method = method;
9024 mb->skip_visibility = 1;
9026 if (!MONO_TYPE_IS_VOID (sig->ret))
9027 ret_local = mono_mb_add_local (mb, sig->ret);
9030 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9031 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9033 /* This will throw the type load exception when the wrapper is compiled */
9034 mono_mb_emit_byte (mb, CEE_LDNULL);
9035 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9036 mono_mb_emit_byte (mb, CEE_POP);
9038 if (!MONO_TYPE_IS_VOID (sig->ret))
9039 mono_mb_emit_ldloc (mb, ret_local);
9040 mono_mb_emit_byte (mb, CEE_RET);
9043 res = mono_mb_create_and_cache_full (cache, method,
9044 mb, sig, sig->param_count + 16, info, NULL);
9052 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9053 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9055 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9056 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9059 mono_marshal_lock ();
9061 if (!enter_method) {
9062 MonoMethodDesc *desc;
9064 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
9065 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9066 g_assert (enter_method);
9067 mono_method_desc_free (desc);
9069 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9070 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9071 g_assert (exit_method);
9072 mono_method_desc_free (desc);
9074 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9075 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9076 g_assert (gettypefromhandle_method);
9077 mono_method_desc_free (desc);
9080 mono_marshal_unlock ();
9083 /* Push this or the type object */
9084 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9085 /* We have special handling for this in the JIT */
9086 int index = mono_mb_add_data (mb, method->klass);
9087 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9088 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9089 mono_mb_emit_i4 (mb, index);
9091 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9094 mono_mb_emit_ldarg (mb, 0);
9095 mono_mb_emit_stloc (mb, this_local);
9097 /* Call Monitor::Enter() */
9098 mono_mb_emit_ldloc (mb, this_local);
9099 mono_mb_emit_ldloc_addr (mb, taken_local);
9100 mono_mb_emit_managed_call (mb, enter_method, NULL);
9102 clause->try_offset = mono_mb_get_label (mb);
9104 /* Call the method */
9106 mono_mb_emit_ldarg (mb, 0);
9107 for (i = 0; i < sig->param_count; i++)
9108 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9112 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9113 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9115 mono_mb_emit_managed_call (mb, method, NULL);
9118 if (!MONO_TYPE_IS_VOID (sig->ret))
9119 mono_mb_emit_stloc (mb, ret_local);
9121 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9123 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9124 clause->handler_offset = mono_mb_get_label (mb);
9126 /* Call Monitor::Exit() if needed */
9127 mono_mb_emit_ldloc (mb, taken_local);
9128 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9129 mono_mb_emit_ldloc (mb, this_local);
9130 mono_mb_emit_managed_call (mb, exit_method, NULL);
9131 mono_mb_patch_branch (mb, pos2);
9132 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9134 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9136 mono_mb_patch_branch (mb, pos);
9137 if (!MONO_TYPE_IS_VOID (sig->ret))
9138 mono_mb_emit_ldloc (mb, ret_local);
9139 mono_mb_emit_byte (mb, CEE_RET);
9141 mono_mb_set_clauses (mb, 1, clause);
9146 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9147 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9149 res = mono_mb_create_and_cache_full (cache, method,
9150 mb, sig, sig->param_count + 16, info, NULL);
9159 * the returned method calls 'method' unboxing the this argument
9162 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9164 MonoMethodSignature *sig = mono_method_signature (method);
9166 MonoMethodBuilder *mb;
9171 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9173 if ((res = mono_marshal_find_in_cache (cache, method)))
9176 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9178 g_assert (sig->hasthis);
9181 mono_mb_emit_ldarg (mb, 0);
9182 mono_mb_emit_icon (mb, sizeof (MonoObject));
9183 mono_mb_emit_byte (mb, CEE_ADD);
9184 for (i = 0; i < sig->param_count; ++i)
9185 mono_mb_emit_ldarg (mb, i + 1);
9186 mono_mb_emit_managed_call (mb, method, NULL);
9187 mono_mb_emit_byte (mb, CEE_RET);
9190 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9191 info->d.unbox.method = method;
9193 res = mono_mb_create_and_cache_full (cache, method,
9194 mb, sig, sig->param_count + 16, info, NULL);
9197 /* mono_method_print_code (res); */
9203 STELEMREF_OBJECT, /*no check at all*/
9204 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9205 STELEMREF_CLASS, /*only the klass->parents check*/
9206 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9207 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9208 STELEMREF_KIND_COUNT
9211 static const char *strelemref_wrapper_name[] = {
9212 "object", "sealed_class", "class", "interface", "complex"
9216 is_monomorphic_array (MonoClass *klass)
9218 MonoClass *element_class;
9219 if (klass->rank != 1)
9222 element_class = klass->element_class;
9223 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9227 get_virtual_stelemref_kind (MonoClass *element_class)
9229 if (element_class == mono_defaults.object_class)
9230 return STELEMREF_OBJECT;
9231 if (is_monomorphic_array (element_class))
9232 return STELEMREF_SEALED_CLASS;
9233 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9234 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9235 #ifdef COMPRESSED_INTERFACE_BITMAP
9236 return STELEMREF_COMPLEX;
9238 return STELEMREF_INTERFACE;
9240 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9241 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9242 return STELEMREF_COMPLEX;
9243 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9244 return STELEMREF_SEALED_CLASS;
9245 return STELEMREF_CLASS;
9251 load_array_element_address (MonoMethodBuilder *mb)
9253 mono_mb_emit_ldarg (mb, 0);
9254 mono_mb_emit_ldarg (mb, 1);
9255 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9259 load_array_class (MonoMethodBuilder *mb, int aklass)
9261 mono_mb_emit_ldarg (mb, 0);
9262 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9263 mono_mb_emit_byte (mb, CEE_LDIND_I);
9264 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9265 mono_mb_emit_byte (mb, CEE_LDIND_I);
9266 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9267 mono_mb_emit_byte (mb, CEE_LDIND_I);
9268 mono_mb_emit_stloc (mb, aklass);
9272 load_value_class (MonoMethodBuilder *mb, int vklass)
9274 mono_mb_emit_ldarg (mb, 2);
9275 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9276 mono_mb_emit_byte (mb, CEE_LDIND_I);
9277 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9278 mono_mb_emit_byte (mb, CEE_LDIND_I);
9279 mono_mb_emit_stloc (mb, vklass);
9285 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9287 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9288 printf ("slow vstore of %s\n", name);
9294 * The wrapper info for the wrapper is a WrapperInfo structure.
9297 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9298 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9299 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9300 * - Add a case for arrays of arrays.
9303 get_virtual_stelemref_wrapper (int kind)
9305 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9306 static MonoMethodSignature *signature;
9307 MonoMethodBuilder *mb;
9310 const char *param_names [16];
9312 int aklass, vklass, vtable, uiid;
9313 int array_slot_addr;
9316 if (cached_methods [kind])
9317 return cached_methods [kind];
9319 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9320 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9324 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9326 /* void this::stelemref (size_t idx, void* value) */
9327 sig->ret = &mono_defaults.void_class->byval_arg;
9328 sig->hasthis = TRUE;
9329 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9330 sig->params [1] = &mono_defaults.object_class->byval_arg;
9335 param_names [0] = "index";
9336 param_names [1] = "value";
9337 mono_mb_set_param_names (mb, param_names);
9339 /*For now simply call plain old stelemref*/
9341 case STELEMREF_OBJECT:
9342 /* ldelema (implicit bound check) */
9343 load_array_element_address (mb);
9345 mono_mb_emit_ldarg (mb, 2);
9346 mono_mb_emit_byte (mb, CEE_STIND_REF);
9347 mono_mb_emit_byte (mb, CEE_RET);
9350 case STELEMREF_COMPLEX:
9352 <ldelema (bound check)>
9355 if (!mono_object_isinst (value, aklass))
9359 *array_slot_addr = value;
9362 throw new ArrayTypeMismatchException ();
9365 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9366 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9370 /*Use this to debug/record stores that are going thru the slow path*/
9371 MonoMethodSignature *csig;
9372 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9373 csig->ret = &mono_defaults.void_class->byval_arg;
9374 csig->params [0] = &mono_defaults.object_class->byval_arg;
9375 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9376 csig->params [2] = &mono_defaults.object_class->byval_arg;
9377 mono_mb_emit_ldarg (mb, 0);
9378 mono_mb_emit_ldarg (mb, 1);
9379 mono_mb_emit_ldarg (mb, 2);
9380 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9384 /* ldelema (implicit bound check) */
9385 load_array_element_address (mb);
9386 mono_mb_emit_stloc (mb, array_slot_addr);
9388 /* if (!value) goto do_store */
9389 mono_mb_emit_ldarg (mb, 2);
9390 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9392 /* aklass = array->vtable->klass->element_class */
9393 load_array_class (mb, aklass);
9395 /*if (mono_object_isinst (value, aklass)) */
9396 mono_mb_emit_ldarg (mb, 2);
9397 mono_mb_emit_ldloc (mb, aklass);
9398 mono_mb_emit_icall (mb, mono_object_isinst);
9399 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9402 mono_mb_patch_branch (mb, b1);
9403 mono_mb_emit_ldloc (mb, array_slot_addr);
9404 mono_mb_emit_ldarg (mb, 2);
9405 mono_mb_emit_byte (mb, CEE_STIND_REF);
9406 mono_mb_emit_byte (mb, CEE_RET);
9409 mono_mb_patch_branch (mb, b2);
9411 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9414 case STELEMREF_SEALED_CLASS:
9416 <ldelema (bound check)>
9420 aklass = array->vtable->klass->element_class;
9421 vklass = value->vtable->klass;
9423 if (vklass != aklass)
9427 *array_slot_addr = value;
9430 throw new ArrayTypeMismatchException ();
9432 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9433 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9434 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9437 /* ldelema (implicit bound check) */
9438 load_array_element_address (mb);
9439 mono_mb_emit_stloc (mb, array_slot_addr);
9441 /* if (!value) goto do_store */
9442 mono_mb_emit_ldarg (mb, 2);
9443 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9445 /* aklass = array->vtable->klass->element_class */
9446 load_array_class (mb, aklass);
9448 /* vklass = value->vtable->klass */
9449 load_value_class (mb, vklass);
9451 /*if (vklass != aklass) goto do_exception; */
9452 mono_mb_emit_ldloc (mb, aklass);
9453 mono_mb_emit_ldloc (mb, vklass);
9454 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9457 mono_mb_patch_branch (mb, b1);
9458 mono_mb_emit_ldloc (mb, array_slot_addr);
9459 mono_mb_emit_ldarg (mb, 2);
9460 mono_mb_emit_byte (mb, CEE_STIND_REF);
9461 mono_mb_emit_byte (mb, CEE_RET);
9464 mono_mb_patch_branch (mb, b2);
9465 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9468 case STELEMREF_CLASS:
9471 <ldelema (bound check)>
9475 aklass = array->vtable->klass->element_class;
9476 vklass = value->vtable->klass;
9478 if (vklass->idepth < aklass->idepth)
9481 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9485 *array_slot_addr = value;
9489 throw new ArrayTypeMismatchException ();
9491 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9492 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9493 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9495 /* ldelema (implicit bound check) */
9496 load_array_element_address (mb);
9497 mono_mb_emit_stloc (mb, array_slot_addr);
9499 /* if (!value) goto do_store */
9500 mono_mb_emit_ldarg (mb, 2);
9501 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9503 /* aklass = array->vtable->klass->element_class */
9504 load_array_class (mb, aklass);
9506 /* vklass = value->vtable->klass */
9507 load_value_class (mb, vklass);
9509 /*if (mono_object_isinst (value, aklass)) */
9510 mono_mb_emit_ldarg (mb, 2);
9511 mono_mb_emit_ldloc (mb, aklass);
9512 mono_mb_emit_icall (mb, mono_object_isinst);
9513 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9515 /* if (vklass->idepth < aklass->idepth) goto failue */
9516 mono_mb_emit_ldloc (mb, vklass);
9517 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9518 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9520 mono_mb_emit_ldloc (mb, aklass);
9521 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9522 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9524 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9526 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9527 mono_mb_emit_ldloc (mb, vklass);
9528 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9529 mono_mb_emit_byte (mb, CEE_LDIND_I);
9531 mono_mb_emit_ldloc (mb, aklass);
9532 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9533 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9534 mono_mb_emit_icon (mb, 1);
9535 mono_mb_emit_byte (mb, CEE_SUB);
9536 mono_mb_emit_icon (mb, sizeof (void*));
9537 mono_mb_emit_byte (mb, CEE_MUL);
9538 mono_mb_emit_byte (mb, CEE_ADD);
9539 mono_mb_emit_byte (mb, CEE_LDIND_I);
9541 mono_mb_emit_ldloc (mb, aklass);
9542 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9545 mono_mb_patch_branch (mb, b1);
9546 mono_mb_emit_ldloc (mb, array_slot_addr);
9547 mono_mb_emit_ldarg (mb, 2);
9548 mono_mb_emit_byte (mb, CEE_STIND_REF);
9549 mono_mb_emit_byte (mb, CEE_RET);
9552 mono_mb_patch_branch (mb, b2);
9553 mono_mb_patch_branch (mb, b3);
9555 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9558 case STELEMREF_INTERFACE:
9565 klass = array->obj.vtable->klass->element_class;
9567 uiid = klass->interface_id;
9568 if (uiid > vt->max_interface_id)
9570 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9573 mono_array_setref (array, index, value);
9576 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9578 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9579 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9580 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9581 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9583 /* ldelema (implicit bound check) */
9584 load_array_element_address (mb);
9585 mono_mb_emit_stloc (mb, array_slot_addr);
9587 /* if (!value) goto do_store */
9588 mono_mb_emit_ldarg (mb, 2);
9589 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9591 /* klass = array->vtable->klass->element_class */
9592 load_array_class (mb, aklass);
9594 /* vt = value->vtable */
9595 mono_mb_emit_ldarg (mb, 2);
9596 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9597 mono_mb_emit_byte (mb, CEE_LDIND_I);
9598 mono_mb_emit_stloc (mb, vtable);
9600 /* uiid = klass->interface_id; */
9601 mono_mb_emit_ldloc (mb, aklass);
9602 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9603 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9604 mono_mb_emit_stloc (mb, uiid);
9606 /*if (uiid > vt->max_interface_id)*/
9607 mono_mb_emit_ldloc (mb, uiid);
9608 mono_mb_emit_ldloc (mb, vtable);
9609 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9610 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9611 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9613 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9615 /*vt->interface_bitmap*/
9616 mono_mb_emit_ldloc (mb, vtable);
9617 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9618 mono_mb_emit_byte (mb, CEE_LDIND_I);
9621 mono_mb_emit_ldloc (mb, uiid);
9622 mono_mb_emit_icon (mb, 3);
9623 mono_mb_emit_byte (mb, CEE_SHR_UN);
9625 /*vt->interface_bitmap [(uiid) >> 3]*/
9626 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9627 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9629 /*(1 << ((uiid)&7)))*/
9630 mono_mb_emit_icon (mb, 1);
9631 mono_mb_emit_ldloc (mb, uiid);
9632 mono_mb_emit_icon (mb, 7);
9633 mono_mb_emit_byte (mb, CEE_AND);
9634 mono_mb_emit_byte (mb, CEE_SHL);
9636 /*bitwise and the whole thing*/
9637 mono_mb_emit_byte (mb, CEE_AND);
9638 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9641 mono_mb_patch_branch (mb, b1);
9642 mono_mb_emit_ldloc (mb, array_slot_addr);
9643 mono_mb_emit_ldarg (mb, 2);
9644 mono_mb_emit_byte (mb, CEE_STIND_REF);
9645 mono_mb_emit_byte (mb, CEE_RET);
9648 mono_mb_patch_branch (mb, b2);
9649 mono_mb_patch_branch (mb, b3);
9650 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9654 mono_mb_emit_ldarg (mb, 0);
9655 mono_mb_emit_ldarg (mb, 1);
9656 mono_mb_emit_ldarg (mb, 2);
9657 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9658 mono_mb_emit_byte (mb, CEE_RET);
9661 #endif /* DISABLE_JIT */
9662 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9663 info->d.virtual_stelemref.kind = kind;
9664 res = mono_mb_create (mb, signature, 4, info);
9665 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9667 mono_marshal_lock ();
9668 if (!cached_methods [kind]) {
9669 cached_methods [kind] = res;
9670 mono_marshal_unlock ();
9672 mono_marshal_unlock ();
9673 mono_free_method (res);
9677 return cached_methods [kind];
9681 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9685 g_assert (array_class->rank == 1);
9686 kind = get_virtual_stelemref_kind (array_class->element_class);
9688 return get_virtual_stelemref_wrapper (kind);
9692 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9697 *nwrappers = STELEMREF_KIND_COUNT;
9698 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9699 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9700 res [i] = get_virtual_stelemref_wrapper (i);
9705 * The wrapper info for the wrapper is a WrapperInfo structure.
9708 mono_marshal_get_stelemref (void)
9710 static MonoMethod* ret = NULL;
9711 MonoMethodSignature *sig;
9712 MonoMethodBuilder *mb;
9715 guint32 b1, b2, b3, b4;
9718 int array_slot_addr;
9723 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9726 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9728 /* void stelemref (void* array, int idx, void* value) */
9729 sig->ret = &mono_defaults.void_class->byval_arg;
9730 sig->params [0] = &mono_defaults.object_class->byval_arg;
9731 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9732 sig->params [2] = &mono_defaults.object_class->byval_arg;
9735 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9736 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9737 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9741 <ldelema (bound check)>
9745 aklass = array->vtable->klass->element_class;
9746 vklass = value->vtable->klass;
9748 if (vklass->idepth < aklass->idepth)
9751 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9755 *array_slot_addr = value;
9759 if (mono_object_isinst (value, aklass))
9762 throw new ArrayTypeMismatchException ();
9765 /* ldelema (implicit bound check) */
9766 mono_mb_emit_ldarg (mb, 0);
9767 mono_mb_emit_ldarg (mb, 1);
9768 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9769 mono_mb_emit_stloc (mb, array_slot_addr);
9771 /* if (!value) goto do_store */
9772 mono_mb_emit_ldarg (mb, 2);
9773 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9775 /* aklass = array->vtable->klass->element_class */
9776 mono_mb_emit_ldarg (mb, 0);
9777 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9778 mono_mb_emit_byte (mb, CEE_LDIND_I);
9779 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9780 mono_mb_emit_byte (mb, CEE_LDIND_I);
9781 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9782 mono_mb_emit_byte (mb, CEE_LDIND_I);
9783 mono_mb_emit_stloc (mb, aklass);
9785 /* vklass = value->vtable->klass */
9786 mono_mb_emit_ldarg (mb, 2);
9787 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9788 mono_mb_emit_byte (mb, CEE_LDIND_I);
9789 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9790 mono_mb_emit_byte (mb, CEE_LDIND_I);
9791 mono_mb_emit_stloc (mb, vklass);
9793 /* if (vklass->idepth < aklass->idepth) goto failue */
9794 mono_mb_emit_ldloc (mb, vklass);
9795 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9796 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9798 mono_mb_emit_ldloc (mb, aklass);
9799 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9800 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9802 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9804 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9805 mono_mb_emit_ldloc (mb, vklass);
9806 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9807 mono_mb_emit_byte (mb, CEE_LDIND_I);
9809 mono_mb_emit_ldloc (mb, aklass);
9810 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9811 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9812 mono_mb_emit_icon (mb, 1);
9813 mono_mb_emit_byte (mb, CEE_SUB);
9814 mono_mb_emit_icon (mb, sizeof (void*));
9815 mono_mb_emit_byte (mb, CEE_MUL);
9816 mono_mb_emit_byte (mb, CEE_ADD);
9817 mono_mb_emit_byte (mb, CEE_LDIND_I);
9819 mono_mb_emit_ldloc (mb, aklass);
9821 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9823 copy_pos = mono_mb_get_label (mb);
9825 mono_mb_patch_branch (mb, b1);
9826 mono_mb_emit_ldloc (mb, array_slot_addr);
9827 mono_mb_emit_ldarg (mb, 2);
9828 mono_mb_emit_byte (mb, CEE_STIND_REF);
9830 mono_mb_emit_byte (mb, CEE_RET);
9833 mono_mb_patch_branch (mb, b2);
9834 mono_mb_patch_branch (mb, b3);
9836 mono_mb_emit_ldarg (mb, 2);
9837 mono_mb_emit_ldloc (mb, aklass);
9838 mono_mb_emit_icall (mb, mono_object_isinst);
9840 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9841 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9842 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9844 mono_mb_emit_byte (mb, CEE_RET);
9846 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9847 ret = mono_mb_create (mb, sig, 4, info);
9854 * mono_marshal_get_gsharedvt_in_wrapper:
9856 * This wrapper handles calls from normal code to gsharedvt code.
9858 * The wrapper info for the wrapper is a WrapperInfo structure.
9861 mono_marshal_get_gsharedvt_in_wrapper (void)
9863 static MonoMethod* ret = NULL;
9864 MonoMethodSignature *sig;
9865 MonoMethodBuilder *mb;
9871 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9873 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9874 sig->ret = &mono_defaults.void_class->byval_arg;
9878 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9880 mono_mb_emit_byte (mb, CEE_RET);
9882 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9883 ret = mono_mb_create (mb, sig, 4, info);
9890 * mono_marshal_get_gsharedvt_out_wrapper:
9892 * This wrapper handles calls from gsharedvt code to normal code.
9894 * The wrapper info for the wrapper is a WrapperInfo structure.
9897 mono_marshal_get_gsharedvt_out_wrapper (void)
9899 static MonoMethod* ret = NULL;
9900 MonoMethodSignature *sig;
9901 MonoMethodBuilder *mb;
9907 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9909 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9910 sig->ret = &mono_defaults.void_class->byval_arg;
9914 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9916 mono_mb_emit_byte (mb, CEE_RET);
9918 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9919 ret = mono_mb_create (mb, sig, 4, info);
9931 /* LOCKING: vars accessed under the marshal lock */
9932 static ArrayElemAddr *elem_addr_cache = NULL;
9933 static int elem_addr_cache_size = 0;
9934 static int elem_addr_cache_next = 0;
9937 * mono_marshal_get_array_address:
9938 * @rank: rank of the array type
9939 * @elem_size: size in bytes of an element of an array.
9941 * Returns a MonoMethod that implements the code to get the address
9942 * of an element in a multi-dimenasional array of @rank dimensions.
9943 * The returned method takes an array as the first argument and then
9944 * @rank indexes for the @rank dimensions.
9945 * If ELEM_SIZE is 0, read the array size from the array object.
9948 mono_marshal_get_array_address (int rank, int elem_size)
9951 MonoMethodBuilder *mb;
9952 MonoMethodSignature *sig;
9955 int i, bounds, ind, realidx;
9956 int branch_pos, *branch_positions;
9960 mono_marshal_lock ();
9961 for (i = 0; i < elem_addr_cache_next; ++i) {
9962 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9963 ret = elem_addr_cache [i].method;
9967 mono_marshal_unlock ();
9971 branch_positions = g_new0 (int, rank);
9973 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9975 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9976 sig->ret = &mono_defaults.int_class->byval_arg;
9977 sig->params [0] = &mono_defaults.object_class->byval_arg;
9978 for (i = 0; i < rank; ++i) {
9979 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9982 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9983 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9987 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9988 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9989 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9991 /* bounds = array->bounds; */
9992 mono_mb_emit_ldarg (mb, 0);
9993 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9994 mono_mb_emit_byte (mb, CEE_LDIND_I);
9995 mono_mb_emit_stloc (mb, bounds);
9997 /* ind is the overall element index, realidx is the partial index in a single dimension */
9998 /* ind = idx0 - bounds [0].lower_bound */
9999 mono_mb_emit_ldarg (mb, 1);
10000 mono_mb_emit_ldloc (mb, bounds);
10001 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10002 mono_mb_emit_byte (mb, CEE_ADD);
10003 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10004 mono_mb_emit_byte (mb, CEE_SUB);
10005 mono_mb_emit_stloc (mb, ind);
10006 /* if (ind >= bounds [0].length) goto exeception; */
10007 mono_mb_emit_ldloc (mb, ind);
10008 mono_mb_emit_ldloc (mb, bounds);
10009 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10010 mono_mb_emit_byte (mb, CEE_ADD);
10011 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10012 /* note that we use unsigned comparison */
10013 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10015 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10016 * We could also decide to ignore the passed elem_size and get it
10017 * from the array object, to reduce the number of methods we generate:
10018 * the additional cost is 3 memory loads and a non-immediate mul.
10020 for (i = 1; i < rank; ++i) {
10021 /* realidx = idxi - bounds [i].lower_bound */
10022 mono_mb_emit_ldarg (mb, 1 + i);
10023 mono_mb_emit_ldloc (mb, bounds);
10024 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10025 mono_mb_emit_byte (mb, CEE_ADD);
10026 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10027 mono_mb_emit_byte (mb, CEE_SUB);
10028 mono_mb_emit_stloc (mb, realidx);
10029 /* if (realidx >= bounds [i].length) goto exeception; */
10030 mono_mb_emit_ldloc (mb, realidx);
10031 mono_mb_emit_ldloc (mb, bounds);
10032 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10033 mono_mb_emit_byte (mb, CEE_ADD);
10034 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10035 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10036 /* ind = ind * bounds [i].length + realidx */
10037 mono_mb_emit_ldloc (mb, ind);
10038 mono_mb_emit_ldloc (mb, bounds);
10039 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10040 mono_mb_emit_byte (mb, CEE_ADD);
10041 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10042 mono_mb_emit_byte (mb, CEE_MUL);
10043 mono_mb_emit_ldloc (mb, realidx);
10044 mono_mb_emit_byte (mb, CEE_ADD);
10045 mono_mb_emit_stloc (mb, ind);
10048 /* return array->vector + ind * element_size */
10049 mono_mb_emit_ldarg (mb, 0);
10050 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10051 mono_mb_emit_ldloc (mb, ind);
10053 mono_mb_emit_icon (mb, elem_size);
10055 /* Load arr->vtable->klass->sizes.element_class */
10056 mono_mb_emit_ldarg (mb, 0);
10057 mono_mb_emit_byte (mb, CEE_CONV_I);
10058 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10059 mono_mb_emit_byte (mb, CEE_ADD);
10060 mono_mb_emit_byte (mb, CEE_LDIND_I);
10061 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10062 mono_mb_emit_byte (mb, CEE_ADD);
10063 mono_mb_emit_byte (mb, CEE_LDIND_I);
10064 /* sizes is an union, so this reads sizes.element_size */
10065 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10066 mono_mb_emit_byte (mb, CEE_ADD);
10067 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10069 mono_mb_emit_byte (mb, CEE_MUL);
10070 mono_mb_emit_byte (mb, CEE_ADD);
10071 mono_mb_emit_byte (mb, CEE_RET);
10073 /* patch the branches to get here and throw */
10074 for (i = 1; i < rank; ++i) {
10075 mono_mb_patch_branch (mb, branch_positions [i]);
10077 mono_mb_patch_branch (mb, branch_pos);
10078 /* throw exception */
10079 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10081 g_free (branch_positions);
10082 #endif /* DISABLE_JIT */
10084 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10085 info->d.element_addr.rank = rank;
10086 info->d.element_addr.elem_size = elem_size;
10087 ret = mono_mb_create (mb, sig, 4, info);
10090 /* cache the result */
10092 mono_marshal_lock ();
10093 for (i = 0; i < elem_addr_cache_next; ++i) {
10094 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10095 /* FIXME: free ret */
10096 ret = elem_addr_cache [i].method;
10102 if (elem_addr_cache_next >= elem_addr_cache_size) {
10103 int new_size = elem_addr_cache_size + 4;
10104 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10105 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10106 g_free (elem_addr_cache);
10107 elem_addr_cache = new_array;
10108 elem_addr_cache_size = new_size;
10110 elem_addr_cache [elem_addr_cache_next].rank = rank;
10111 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10112 elem_addr_cache [elem_addr_cache_next].method = ret;
10113 elem_addr_cache_next ++;
10115 mono_marshal_unlock ();
10120 * mono_marshal_get_array_accessor_wrapper:
10122 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10125 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10127 MonoMethodSignature *sig;
10128 MonoMethodBuilder *mb;
10132 MonoGenericContext *ctx = NULL;
10133 MonoMethod *orig_method = NULL;
10134 MonoGenericContainer *container = NULL;
10138 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10139 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10140 * FIXME: Use generic methods.
10147 g_assert_not_reached ();
10149 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10150 if ((res = mono_marshal_find_in_cache (cache, method)))
10154 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10157 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10159 #ifndef DISABLE_JIT
10160 /* Call the method */
10162 mono_mb_emit_ldarg (mb, 0);
10163 for (i = 0; i < sig->param_count; i++)
10164 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10168 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10169 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10171 mono_mb_emit_managed_call (mb, method, NULL);
10173 mono_mb_emit_byte (mb, CEE_RET);
10176 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10177 info->d.array_accessor.method = method;
10181 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10182 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10184 res = mono_mb_create_and_cache_full (cache, method,
10185 mb, sig, sig->param_count + 16,
10194 mono_marshal_alloc (gulong size, MonoError *error)
10198 mono_error_init (error);
10201 res = CoTaskMemAlloc (size);
10203 res = g_try_malloc ((gulong)size);
10205 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10210 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10212 ves_icall_marshal_alloc (gulong size)
10215 void *ret = mono_marshal_alloc (size, &error);
10216 if (!mono_error_ok (&error)) {
10217 mono_error_set_pending_exception (&error);
10225 mono_marshal_free (gpointer ptr)
10228 CoTaskMemFree (ptr);
10235 mono_marshal_free_array (gpointer *ptr, int size)
10242 for (i = 0; i < size; i++)
10248 mono_marshal_string_to_utf16 (MonoString *s)
10250 return s ? mono_string_chars (s) : NULL;
10253 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10255 mono_marshal_string_to_utf16_copy (MonoString *s)
10261 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10262 if (!mono_error_ok (&error)) {
10263 mono_error_set_pending_exception (&error);
10266 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10267 res [mono_string_length (s)] = 0;
10273 * mono_marshal_set_last_error:
10275 * This function is invoked to set the last error value from a P/Invoke call
10276 * which has SetLastError set.
10279 mono_marshal_set_last_error (void)
10282 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10284 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10289 mono_marshal_set_last_error_windows (int error)
10292 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10297 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10298 gpointer dest, gint32 length)
10303 MONO_CHECK_ARG_NULL (src,);
10304 MONO_CHECK_ARG_NULL (dest,);
10306 if (src->obj.vtable->klass->rank != 1) {
10307 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10310 if (start_index < 0) {
10311 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10315 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10318 if (start_index + length > mono_array_length (src)) {
10319 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10323 element_size = mono_array_element_size (src->obj.vtable->klass);
10325 /* no references should be involved */
10326 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10328 memcpy (dest, source_addr, length * element_size);
10332 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10333 MonoArray *dest, gint32 length)
10338 MONO_CHECK_ARG_NULL (src,);
10339 MONO_CHECK_ARG_NULL (dest,);
10341 if (dest->obj.vtable->klass->rank != 1) {
10342 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10345 if (start_index < 0) {
10346 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10350 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10353 if (start_index + length > mono_array_length (dest)) {
10354 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10357 element_size = mono_array_element_size (dest->obj.vtable->klass);
10359 /* no references should be involved */
10360 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10362 memcpy (dest_addr, src, length * element_size);
10366 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10371 return mono_string_new (mono_domain_get (), ptr);
10375 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10378 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10381 return mono_string_new_len (mono_domain_get (), ptr, len);
10386 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10389 MonoString *res = NULL;
10390 MonoDomain *domain = mono_domain_get ();
10400 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10401 if (!mono_error_ok (&error)) {
10402 mono_error_set_pending_exception (&error);
10409 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10412 MonoString *res = NULL;
10413 MonoDomain *domain = mono_domain_get ();
10415 mono_error_init (&error);
10419 mono_error_set_argument_null (&error, "ptr", "");
10421 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10424 if (!mono_error_ok (&error))
10425 mono_error_set_pending_exception (&error);
10430 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10432 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10436 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10442 MONO_CHECK_ARG_NULL (rtype, 0);
10444 type = rtype->type;
10445 klass = mono_class_from_mono_type (type);
10446 if (!mono_class_init (klass)) {
10447 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10451 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10453 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10454 return sizeof (gpointer);
10455 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10457 MonoException *exc;
10459 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10460 exc = mono_get_exception_argument ("t", msg);
10462 mono_set_pending_exception (exc);
10466 return mono_class_native_size (klass, NULL);
10470 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10473 MonoMethod *method;
10476 MONO_CHECK_ARG_NULL (obj,);
10477 MONO_CHECK_ARG_NULL (dst,);
10479 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10483 pa [2] = &delete_old;
10485 mono_runtime_invoke_checked (method, NULL, pa, &error);
10486 if (!mono_error_ok (&error))
10487 mono_error_set_pending_exception (&error);
10491 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10493 MonoMethod *method;
10496 mono_error_init (error);
10498 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10503 mono_runtime_invoke_checked (method, NULL, pa, error);
10507 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10512 MONO_CHECK_ARG_NULL (src,);
10513 MONO_CHECK_ARG_NULL (dst,);
10515 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10517 if (t->type == MONO_TYPE_VALUETYPE) {
10518 MonoException *exc;
10521 tmp = g_strdup_printf ("Destination is a boxed value type.");
10522 exc = mono_get_exception_argument ("dst", tmp);
10525 mono_set_pending_exception (exc);
10529 ptr_to_structure (src, dst, &error);
10530 if (!mono_error_ok (&error))
10531 mono_error_set_pending_exception (&error);
10535 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10539 MonoDomain *domain = mono_domain_get ();
10544 MONO_CHECK_ARG_NULL (type, NULL);
10546 klass = mono_class_from_mono_type (type->type);
10547 if (!mono_class_init (klass)) {
10548 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10552 res = mono_object_new_checked (domain, klass, &error);
10553 if (!mono_error_ok (&error)) {
10554 mono_error_set_pending_exception (&error);
10558 ptr_to_structure (src, res, &error);
10559 if (!mono_error_ok (&error)) {
10560 mono_error_set_pending_exception (&error);
10568 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10570 MonoMarshalType *info;
10573 int match_index = -1;
10575 MONO_CHECK_ARG_NULL (type, 0);
10576 MONO_CHECK_ARG_NULL (field_name, 0);
10578 fname = mono_string_to_utf8 (field_name);
10579 klass = mono_class_from_mono_type (type->type);
10580 if (!mono_class_init (klass)) {
10581 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10585 while (klass && match_index == -1) {
10586 MonoClassField* field;
10588 gpointer iter = NULL;
10589 while ((field = mono_class_get_fields (klass, &iter))) {
10590 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10592 if (!strcmp (fname, mono_field_get_name (field))) {
10599 if (match_index == -1)
10600 klass = klass->parent;
10605 if(match_index == -1) {
10606 MonoException* exc;
10609 /* Get back original class instance */
10610 klass = mono_class_from_mono_type (type->type);
10612 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10613 exc = mono_get_exception_argument ("fieldName", tmp);
10616 mono_set_pending_exception ((MonoException*)exc);
10620 info = mono_marshal_load_type_info (klass);
10621 return info->fields [match_index].offset;
10625 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10630 tres = mono_string_to_utf8 (string);
10634 len = strlen (tres) + 1;
10635 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10636 memcpy (ret, tres, len);
10641 return mono_string_to_utf8 (string);
10646 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10648 if (string == NULL)
10651 #ifdef TARGET_WIN32
10652 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10653 ((mono_string_length (string) + 1) * 2);
10655 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10657 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10658 res [mono_string_length (string)] = 0;
10664 mono_struct_delete_old (MonoClass *klass, char *ptr)
10666 MonoMarshalType *info;
10669 info = mono_marshal_load_type_info (klass);
10671 for (i = 0; i < info->num_fields; i++) {
10672 MonoMarshalConv conv;
10673 MonoType *ftype = info->fields [i].field->type;
10676 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10679 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10680 klass->unicode, &conv);
10682 cpos = ptr + info->fields [i].offset;
10685 case MONO_MARSHAL_CONV_NONE:
10686 if (MONO_TYPE_ISSTRUCT (ftype)) {
10687 mono_struct_delete_old (ftype->data.klass, cpos);
10691 case MONO_MARSHAL_CONV_STR_LPWSTR:
10692 /* We assume this field points inside a MonoString */
10694 case MONO_MARSHAL_CONV_STR_LPTSTR:
10695 #ifdef TARGET_WIN32
10696 /* We assume this field points inside a MonoString
10700 case MONO_MARSHAL_CONV_STR_LPSTR:
10701 case MONO_MARSHAL_CONV_STR_BSTR:
10702 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10703 case MONO_MARSHAL_CONV_STR_TBSTR:
10704 mono_marshal_free (*(gpointer *)cpos);
10714 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10718 MONO_CHECK_ARG_NULL (src,);
10719 MONO_CHECK_ARG_NULL (type,);
10721 klass = mono_class_from_mono_type (type->type);
10722 if (!mono_class_init (klass)) {
10723 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10727 mono_struct_delete_old (klass, (char *)src);
10731 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10734 size_t s = (size_t)size;
10737 /* This returns a valid pointer for size 0 on MS.NET */
10741 res = GlobalAlloc (GMEM_FIXED, s);
10743 res = g_try_malloc (s);
10746 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10754 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10757 size_t s = (size_t)size;
10760 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10765 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10767 res = g_try_realloc (ptr, s);
10770 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10778 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10788 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10793 res = CoTaskMemAlloc (size);
10795 if ((gulong)size == 0)
10796 /* This returns a valid pointer for size 0 on MS.NET */
10799 res = g_try_malloc ((gulong)size);
10802 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10809 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10812 CoTaskMemFree (ptr);
10819 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10824 res = CoTaskMemRealloc (ptr, size);
10826 res = g_try_realloc (ptr, (gulong)size);
10829 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10836 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10838 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10842 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10844 MonoClass *klass = mono_type_get_class (type->type);
10845 if (!mono_class_init (klass)) {
10846 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10850 return mono_ftnptr_to_delegate (klass, ftn);
10854 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
10856 return mono_delegate_to_ftnptr (delegate);
10860 * mono_marshal_is_loading_type_info:
10862 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10866 mono_marshal_is_loading_type_info (MonoClass *klass)
10868 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10870 return g_slist_find (loads_list, klass) != NULL;
10874 * mono_marshal_load_type_info:
10876 * Initialize klass->marshal_info using information from metadata. This function can
10877 * recursively call itself, and the caller is responsible to avoid that by calling
10878 * mono_marshal_is_loading_type_info () beforehand.
10880 * LOCKING: Acquires the loader lock.
10883 mono_marshal_load_type_info (MonoClass* klass)
10886 guint32 native_size = 0, min_align = 1, packing;
10887 MonoMarshalType *info;
10888 MonoClassField* field;
10891 GSList *loads_list;
10893 g_assert (klass != NULL);
10895 if (klass->marshal_info)
10896 return klass->marshal_info;
10898 if (!klass->inited)
10899 mono_class_init (klass);
10901 if (klass->marshal_info)
10902 return klass->marshal_info;
10905 * This function can recursively call itself, so we keep the list of classes which are
10906 * under initialization in a TLS list.
10908 g_assert (!mono_marshal_is_loading_type_info (klass));
10909 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10910 loads_list = g_slist_prepend (loads_list, klass);
10911 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10914 while ((field = mono_class_get_fields (klass, &iter))) {
10915 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10917 if (mono_field_is_deleted (field))
10922 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10924 /* The mempool is protected by the loader lock */
10925 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10926 info->num_fields = count;
10928 /* Try to find a size for this type in metadata */
10929 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10931 if (klass->parent) {
10932 int parent_size = mono_class_native_size (klass->parent, NULL);
10934 /* Add parent size to real size */
10935 native_size += parent_size;
10936 info->native_size = parent_size;
10939 packing = klass->packing_size ? klass->packing_size : 8;
10942 while ((field = mono_class_get_fields (klass, &iter))) {
10946 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10949 if (mono_field_is_deleted (field))
10951 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10952 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10953 NULL, NULL, &info->fields [j].mspec);
10955 info->fields [j].field = field;
10957 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10958 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10959 /* This field is a hack inserted by MCS to empty structures */
10964 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10965 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10966 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10967 &align, TRUE, klass->unicode);
10968 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10969 min_align = MAX (align, min_align);
10970 info->fields [j].offset = info->native_size;
10971 info->fields [j].offset += align - 1;
10972 info->fields [j].offset &= ~(align - 1);
10973 info->native_size = info->fields [j].offset + size;
10975 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10976 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10977 &align, TRUE, klass->unicode);
10978 min_align = MAX (align, min_align);
10979 info->fields [j].offset = field->offset - sizeof (MonoObject);
10980 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10986 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10987 info->native_size = MAX (native_size, info->native_size);
10989 * If the provided Size is equal or larger than the calculated size, and there
10990 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10992 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10993 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10996 min_align = MIN (min_align, packing);
11000 if (info->native_size & (min_align - 1)) {
11001 info->native_size += min_align - 1;
11002 info->native_size &= ~(min_align - 1);
11005 info->min_align = min_align;
11007 /* Update the class's blittable info, if the layouts don't match */
11008 if (info->native_size != mono_class_value_size (klass, NULL))
11009 klass->blittable = FALSE;
11011 /* If this is an array type, ensure that we have element info */
11012 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11013 mono_marshal_load_type_info (klass->element_class);
11016 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11017 loads_list = g_slist_remove (loads_list, klass);
11018 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11020 mono_marshal_lock ();
11021 if (!klass->marshal_info) {
11022 /*We do double-checking locking on marshal_info */
11023 mono_memory_barrier ();
11024 klass->marshal_info = info;
11026 mono_marshal_unlock ();
11028 return klass->marshal_info;
11032 * mono_class_native_size:
11035 * Returns: the native size of an object instance (when marshaled
11036 * to unmanaged code)
11039 mono_class_native_size (MonoClass *klass, guint32 *align)
11041 if (!klass->marshal_info) {
11042 if (mono_marshal_is_loading_type_info (klass)) {
11047 mono_marshal_load_type_info (klass);
11052 *align = klass->marshal_info->min_align;
11054 return klass->marshal_info->native_size;
11058 * mono_type_native_stack_size:
11059 * @t: the type to return the size it uses on the stack
11061 * Returns: the number of bytes required to hold an instance of this
11062 * type on the native stack
11065 mono_type_native_stack_size (MonoType *t, guint32 *align)
11069 g_assert (t != NULL);
11075 *align = sizeof (gpointer);
11076 return sizeof (gpointer);
11080 case MONO_TYPE_BOOLEAN:
11081 case MONO_TYPE_CHAR:
11092 case MONO_TYPE_STRING:
11093 case MONO_TYPE_OBJECT:
11094 case MONO_TYPE_CLASS:
11095 case MONO_TYPE_SZARRAY:
11096 case MONO_TYPE_PTR:
11097 case MONO_TYPE_FNPTR:
11098 case MONO_TYPE_ARRAY:
11099 *align = sizeof (gpointer);
11100 return sizeof (gpointer);
11105 *align = MONO_ABI_ALIGNOF (double);
11109 *align = MONO_ABI_ALIGNOF (gint64);
11111 case MONO_TYPE_GENERICINST:
11112 if (!mono_type_generic_inst_is_valuetype (t)) {
11113 *align = sizeof (gpointer);
11114 return sizeof (gpointer);
11117 case MONO_TYPE_TYPEDBYREF:
11118 case MONO_TYPE_VALUETYPE: {
11120 MonoClass *klass = mono_class_from_mono_type (t);
11122 if (klass->enumtype)
11123 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11125 size = mono_class_native_size (klass, align);
11126 *align = *align + 3;
11136 g_error ("type 0x%02x unknown", t->type);
11142 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11143 gboolean as_field, gboolean unicode)
11145 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11148 switch (native_type) {
11149 case MONO_NATIVE_BOOLEAN:
11152 case MONO_NATIVE_I1:
11153 case MONO_NATIVE_U1:
11156 case MONO_NATIVE_I2:
11157 case MONO_NATIVE_U2:
11158 case MONO_NATIVE_VARIANTBOOL:
11161 case MONO_NATIVE_I4:
11162 case MONO_NATIVE_U4:
11163 case MONO_NATIVE_ERROR:
11166 case MONO_NATIVE_I8:
11167 case MONO_NATIVE_U8:
11168 *align = MONO_ABI_ALIGNOF (gint64);
11170 case MONO_NATIVE_R4:
11173 case MONO_NATIVE_R8:
11174 *align = MONO_ABI_ALIGNOF (double);
11176 case MONO_NATIVE_INT:
11177 case MONO_NATIVE_UINT:
11178 case MONO_NATIVE_LPSTR:
11179 case MONO_NATIVE_LPWSTR:
11180 case MONO_NATIVE_LPTSTR:
11181 case MONO_NATIVE_BSTR:
11182 case MONO_NATIVE_ANSIBSTR:
11183 case MONO_NATIVE_TBSTR:
11184 case MONO_NATIVE_LPARRAY:
11185 case MONO_NATIVE_SAFEARRAY:
11186 case MONO_NATIVE_IUNKNOWN:
11187 case MONO_NATIVE_IDISPATCH:
11188 case MONO_NATIVE_INTERFACE:
11189 case MONO_NATIVE_ASANY:
11190 case MONO_NATIVE_FUNC:
11191 case MONO_NATIVE_LPSTRUCT:
11192 *align = MONO_ABI_ALIGNOF (gpointer);
11193 return sizeof (gpointer);
11194 case MONO_NATIVE_STRUCT:
11195 klass = mono_class_from_mono_type (type);
11196 if (klass == mono_defaults.object_class &&
11197 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11201 return mono_class_native_size (klass, align);
11202 case MONO_NATIVE_BYVALTSTR: {
11203 int esize = unicode ? 2: 1;
11206 return mspec->data.array_data.num_elem * esize;
11208 case MONO_NATIVE_BYVALARRAY: {
11209 // FIXME: Have to consider ArraySubType
11211 klass = mono_class_from_mono_type (type);
11212 if (klass->element_class == mono_defaults.char_class) {
11213 esize = unicode ? 2 : 1;
11216 esize = mono_class_native_size (klass->element_class, align);
11219 return mspec->data.array_data.num_elem * esize;
11221 case MONO_NATIVE_CUSTOM:
11222 *align = sizeof (gpointer);
11223 return sizeof (gpointer);
11225 case MONO_NATIVE_CURRENCY:
11226 case MONO_NATIVE_VBBYREFSTR:
11228 g_error ("native type %02x not implemented", native_type);
11231 g_assert_not_reached ();
11235 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11237 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11246 t = &o->vtable->klass->byval_arg;
11250 case MONO_TYPE_PTR:
11253 case MONO_TYPE_BOOLEAN:
11256 case MONO_TYPE_CHAR:
11261 return mono_object_unbox (o);
11263 case MONO_TYPE_STRING:
11264 switch (string_encoding) {
11265 case MONO_NATIVE_LPWSTR:
11266 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11268 case MONO_NATIVE_LPSTR:
11269 return mono_string_to_lpstr ((MonoString*)o);
11272 g_warning ("marshaling conversion %d not implemented", string_encoding);
11273 g_assert_not_reached ();
11276 case MONO_TYPE_CLASS:
11277 case MONO_TYPE_VALUETYPE: {
11278 MonoMethod *method;
11281 MonoBoolean delete_old = FALSE;
11283 klass = t->data.klass;
11285 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11288 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11289 klass->blittable || klass->enumtype))
11290 return mono_object_unbox (o);
11292 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11293 if (!mono_error_ok (&error)) {
11294 mono_error_set_pending_exception (&error);
11298 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11299 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11303 pa [2] = &delete_old;
11305 mono_runtime_invoke_checked (method, NULL, pa, &error);
11306 if (!mono_error_ok (&error)) {
11307 mono_error_set_pending_exception (&error);
11317 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11321 /* This is a JIT icall, it sets the pending exception */
11323 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11332 t = &o->vtable->klass->byval_arg;
11334 case MONO_TYPE_STRING:
11335 switch (string_encoding) {
11336 case MONO_NATIVE_LPWSTR:
11337 case MONO_NATIVE_LPSTR:
11338 mono_marshal_free (ptr);
11341 g_warning ("marshaling conversion %d not implemented", string_encoding);
11342 g_assert_not_reached ();
11345 case MONO_TYPE_CLASS:
11346 case MONO_TYPE_VALUETYPE: {
11347 klass = t->data.klass;
11349 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11350 klass->blittable || klass->enumtype))
11353 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11354 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11360 mono_runtime_invoke_checked (method, NULL, pa, &error);
11361 if (!mono_error_ok (&error)) {
11362 mono_error_set_pending_exception (&error);
11367 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11368 mono_struct_delete_old (klass, (char *)ptr);
11371 mono_marshal_free (ptr);
11380 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11382 MonoMethodSignature *sig, *csig;
11383 MonoMethodBuilder *mb;
11388 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11389 mb->method->slot = -1;
11391 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11392 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11394 sig = mono_method_signature (method);
11395 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11396 csig->generic_param_count = 0;
11398 #ifndef DISABLE_JIT
11399 mono_mb_emit_ldarg (mb, 0);
11400 for (i = 0; i < csig->param_count; i++)
11401 mono_mb_emit_ldarg (mb, i + 1);
11402 mono_mb_emit_managed_call (mb, method, NULL);
11403 mono_mb_emit_byte (mb, CEE_RET);
11405 /* We can corlib internal methods */
11406 mb->skip_visibility = TRUE;
11408 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11409 info->d.generic_array_helper.method = method;
11410 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11418 * The mono_win32_compat_* functions are implementations of inline
11419 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11420 * although not exported by kernel32.
11422 * We map the appropiate kernel32 entries to these functions using
11423 * dllmaps declared in the global etc/mono/config.
11427 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11429 if (!dest || !source)
11432 memcpy (dest, source, length);
11436 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11438 memset (dest, fill, length);
11442 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11444 if (!dest || !source)
11447 memmove (dest, source, length);
11451 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11453 memset (dest, 0, length);
11457 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11462 for (i = 0; i < len; ++i)
11466 g_assert (i < len);
11469 while (byte && !(byte & 1))
11471 g_assert (byte == 1);
11474 *bitmask = buf [i];
11478 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11480 MonoMethodBuilder *mb;
11481 MonoMethodSignature *sig, *csig;
11482 MonoExceptionClause *clause;
11487 int i, param_count, sig_size, pos_leave;
11488 int coop_gc_var, coop_gc_dummy_local;
11492 klass = method->klass;
11493 image = method->klass->image;
11495 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11497 if ((res = mono_marshal_find_in_cache (cache, method)))
11500 sig = mono_method_signature (method);
11501 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11503 /* add "this" and exception param */
11504 param_count = sig->param_count + sig->hasthis + 1;
11506 /* dup & extend signature */
11507 csig = mono_metadata_signature_alloc (image, param_count);
11508 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11509 memcpy (csig, sig, sig_size);
11510 csig->param_count = param_count;
11513 csig->call_convention = MONO_CALL_DEFAULT;
11515 if (sig->hasthis) {
11517 csig->params [0] = &klass->byval_arg;
11518 /* move params up by one */
11519 for (i = 0; i < sig->param_count; i++)
11520 csig->params [i + 1] = sig->params [i];
11523 /* setup exception param as byref+[out] */
11524 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11525 &mono_defaults.exception_class->byval_arg);
11526 csig->params [param_count - 1]->byref = 1;
11527 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11529 /* convert struct return to object */
11530 if (MONO_TYPE_ISSTRUCT (sig->ret))
11531 csig->ret = &mono_defaults.object_class->byval_arg;
11533 #ifndef DISABLE_JIT
11534 /* local 0 (temp for exception object) */
11535 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11537 /* local 1 (temp for result) */
11538 if (!MONO_TYPE_IS_VOID (sig->ret))
11539 mono_mb_add_local (mb, sig->ret);
11541 if (mono_threads_is_coop_enabled ()) {
11542 /* local 4, the local to be used when calling the reset_blocking funcs */
11543 /* tons of code hardcode 3 to be the return var */
11544 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11545 /* local 5, the local used to get a stack address for suspend funcs */
11546 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11549 /* clear exception arg */
11550 mono_mb_emit_ldarg (mb, param_count - 1);
11551 mono_mb_emit_byte (mb, CEE_LDNULL);
11552 mono_mb_emit_byte (mb, CEE_STIND_REF);
11554 if (mono_threads_is_coop_enabled ()) {
11555 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11556 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11557 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11558 mono_mb_emit_stloc (mb, coop_gc_var);
11562 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11563 clause->try_offset = mono_mb_get_label (mb);
11565 /* push method's args */
11566 for (i = 0; i < param_count - 1; i++) {
11570 mono_mb_emit_ldarg (mb, i);
11572 /* get the byval type of the param */
11573 klass = mono_class_from_mono_type (csig->params [i]);
11574 type = &klass->byval_arg;
11576 /* unbox struct args */
11577 if (MONO_TYPE_ISSTRUCT (type)) {
11578 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11580 /* byref args & and the "this" arg must remain a ptr.
11581 Otherwise make a copy of the value type */
11582 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11583 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11585 csig->params [i] = &mono_defaults.object_class->byval_arg;
11590 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11591 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11593 mono_mb_emit_op (mb, CEE_CALL, method);
11595 /* save result at local 1 */
11596 if (!MONO_TYPE_IS_VOID (sig->ret))
11597 mono_mb_emit_stloc (mb, 1);
11599 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11602 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11603 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11604 clause->data.catch_class = mono_defaults.object_class;
11606 clause->handler_offset = mono_mb_get_label (mb);
11608 /* store exception at local 0 */
11609 mono_mb_emit_stloc (mb, 0);
11610 mono_mb_emit_ldarg (mb, param_count - 1);
11611 mono_mb_emit_ldloc (mb, 0);
11612 mono_mb_emit_byte (mb, CEE_STIND_REF);
11613 mono_mb_emit_branch (mb, CEE_LEAVE);
11615 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11617 mono_mb_set_clauses (mb, 1, clause);
11619 mono_mb_patch_branch (mb, pos_leave);
11622 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11623 mono_mb_emit_ldloc (mb, 1);
11625 /* box the return value */
11626 if (MONO_TYPE_ISSTRUCT (sig->ret))
11627 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11630 if (mono_threads_is_coop_enabled ()) {
11631 /* XXX merge reset_blocking_end with detach */
11632 mono_mb_emit_ldloc (mb, coop_gc_var);
11633 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11634 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11637 mono_mb_emit_byte (mb, CEE_RET);
11640 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11647 * mono_marshal_free_dynamic_wrappers:
11649 * Free wrappers of the dynamic method METHOD.
11652 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11654 MonoImage *image = method->klass->image;
11656 g_assert (method_is_dynamic (method));
11658 /* This could be called during shutdown */
11659 if (marshal_mutex_initialized)
11660 mono_marshal_lock ();
11662 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11663 * they could be shared with other methods ?
11665 if (image->wrapper_caches.runtime_invoke_direct_cache)
11666 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11667 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11668 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11669 // FIXME: Need to clear the caches in other images as well
11670 if (image->delegate_bound_static_invoke_cache)
11671 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11673 if (marshal_mutex_initialized)
11674 mono_marshal_unlock ();