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)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
22 #include "metadata/marshal.h"
23 #include "metadata/method-builder.h"
24 #include "metadata/tabledefs.h"
25 #include "metadata/exception.h"
26 #include "metadata/appdomain.h"
27 #include "mono/metadata/abi-details.h"
28 #include "mono/metadata/debug-helpers.h"
29 #include "mono/metadata/threads.h"
30 #include "mono/metadata/monitor.h"
31 #include "mono/metadata/class-internals.h"
32 #include "mono/metadata/metadata-internals.h"
33 #include "mono/metadata/domain-internals.h"
34 #include "mono/metadata/gc-internals.h"
35 #include "mono/metadata/threads-types.h"
36 #include "mono/metadata/string-icalls.h"
37 #include "mono/metadata/attrdefs.h"
38 #include "mono/metadata/gc-internals.h"
39 #include "mono/metadata/cominterop.h"
40 #include "mono/metadata/remoting.h"
41 #include "mono/metadata/reflection-internals.h"
42 #include "mono/metadata/threadpool-ms.h"
43 #include "mono/metadata/handle.h"
44 #include "mono/utils/mono-counters.h"
45 #include "mono/utils/mono-tls.h"
46 #include "mono/utils/mono-memory-model.h"
47 #include "mono/utils/atomic.h"
48 #include <mono/utils/mono-threads.h>
49 #include <mono/utils/mono-threads-coop.h>
50 #include <mono/utils/mono-error-internals.h>
55 /* #define DEBUG_RUNTIME_CODE */
57 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
61 #include "mono/cil/opcode.def"
67 * This mutex protects the various marshalling related caches in MonoImage
68 * and a few other data structures static to this file.
70 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
71 * runtime locking latice. Which means it can take simple locks suck as the image lock.
73 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
74 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
75 static mono_mutex_t marshal_mutex;
76 static gboolean marshal_mutex_initialized;
78 static MonoNativeTlsKey last_error_tls_id;
80 static MonoNativeTlsKey load_type_info_tls_id;
82 static gboolean use_aot_wrappers;
84 static void ftnptr_eh_callback_default (guint32 gchandle);
86 static MonoFtnPtrEHCallback ftnptr_eh_callback = ftnptr_eh_callback_default;
89 delegate_hash_table_add (MonoDelegate *d);
92 delegate_hash_table_remove (MonoDelegate *d);
95 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
98 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, int offset_of_first_child_field, MonoMarshalNative string_encoding);
101 mono_struct_delete_old (MonoClass *klass, char *ptr);
104 mono_marshal_string_to_utf16 (MonoString *s);
107 mono_marshal_string_to_utf16_copy (MonoString *s);
110 mono_string_to_lpstr (MonoString *string_obj);
112 static MonoStringBuilder *
113 mono_string_utf8_to_builder2 (char *text);
115 static MonoStringBuilder *
116 mono_string_utf16_to_builder2 (gunichar2 *text);
119 mono_string_new_len_wrapper (const char *text, guint length);
122 mono_string_from_byvalstr (const char *data, int len);
125 mono_string_from_byvalwstr (gunichar2 *data, int len);
128 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
131 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
134 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
137 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
139 static MonoAsyncResult *
140 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
143 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
146 mono_marshal_set_last_error_windows (int error);
149 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
151 static void init_safe_handle (void);
154 ves_icall_marshal_alloc (gulong size);
157 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
160 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
163 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
166 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
169 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
172 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
175 mono_delegate_to_ftnptr (MonoDelegate *delegate);
178 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
181 mono_array_to_savearray (MonoArray *array);
184 mono_array_to_lparray (MonoArray *array);
187 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
190 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
193 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
196 mono_array_to_savearray (MonoArray *array);
199 mono_array_to_lparray (MonoArray *array);
202 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
205 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
207 static MonoThreadInfo*
208 mono_icall_start (HandleStackMark *stackmark, MonoError *error);
211 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error);
213 /* Lazy class loading functions */
214 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
215 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
216 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
217 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
219 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
220 static MonoMethod *sh_dangerous_add_ref;
221 static MonoMethod *sh_dangerous_release;
226 sh_dangerous_add_ref = mono_class_get_method_from_name (
227 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
228 sh_dangerous_release = mono_class_get_method_from_name (
229 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
233 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
235 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
237 mono_register_jit_icall (func, name, sig, no_wrapper);
241 mono_signature_no_pinvoke (MonoMethod *method)
243 MonoMethodSignature *sig = mono_method_signature (method);
245 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
246 sig->pinvoke = FALSE;
253 mono_marshal_init_tls (void)
255 mono_native_tls_alloc (&last_error_tls_id, NULL);
256 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
260 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
263 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
264 mono_error_set_pending_exception (&error);
269 ves_icall_mono_string_from_utf16 (gunichar2 *data)
272 MonoString *result = mono_string_from_utf16_checked (data, &error);
273 mono_error_set_pending_exception (&error);
278 ves_icall_mono_string_to_utf8 (MonoString *str)
281 char *result = mono_string_to_utf8_checked (str, &error);
282 mono_error_set_pending_exception (&error);
287 mono_marshal_init (void)
289 static gboolean module_initialized = FALSE;
291 if (!module_initialized) {
292 module_initialized = TRUE;
293 mono_os_mutex_init_recursive (&marshal_mutex);
294 marshal_mutex_initialized = TRUE;
296 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
297 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
298 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
299 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
300 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
301 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
302 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
303 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
304 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
305 register_icall (ves_icall_mono_string_to_utf8, "ves_icall_mono_string_to_utf8", "ptr obj", FALSE);
306 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
307 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
308 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
309 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
310 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
311 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
312 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
313 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
314 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
315 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
316 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
317 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
318 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
319 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
320 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
321 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
322 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
323 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
324 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
325 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
326 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
327 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
328 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
329 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
330 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
331 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
332 register_icall (g_free, "g_free", "void ptr", FALSE);
333 register_icall (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr", FALSE);
334 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
335 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
336 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
337 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
338 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
339 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
340 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
341 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
342 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
343 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
344 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
345 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
346 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
347 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
348 register_icall (mono_icall_start, "mono_icall_start", "ptr ptr ptr", TRUE);
349 register_icall (mono_icall_end, "mono_icall_end", "void ptr ptr ptr", TRUE);
350 register_icall (mono_handle_new, "mono_handle_new", "ptr ptr", TRUE);
352 mono_cominterop_init ();
353 mono_remoting_init ();
358 mono_marshal_cleanup (void)
360 mono_cominterop_cleanup ();
362 mono_native_tls_free (load_type_info_tls_id);
363 mono_native_tls_free (last_error_tls_id);
364 mono_os_mutex_destroy (&marshal_mutex);
365 marshal_mutex_initialized = FALSE;
369 mono_marshal_lock_internal (void)
371 mono_marshal_lock ();
375 mono_marshal_unlock_internal (void)
377 mono_marshal_unlock ();
380 /* This is a JIT icall, it sets the pending exception and return NULL on error */
382 mono_delegate_to_ftnptr (MonoDelegate *delegate)
385 MonoMethod *method, *wrapper;
387 uint32_t target_handle = 0;
392 if (delegate->delegate_trampoline)
393 return delegate->delegate_trampoline;
395 klass = ((MonoObject *)delegate)->vtable->klass;
396 g_assert (klass->delegate);
398 method = delegate->method;
399 if (delegate->method_is_virtual)
400 method = mono_object_get_virtual_method (delegate->target, method);
402 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
403 const char *exc_class, *exc_arg;
406 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
408 g_assert (exc_class);
409 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
415 if (delegate->target) {
416 /* Produce a location which can be embedded in JITted code */
417 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
420 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
422 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
426 // Add the delegate to the delegate hash table
427 delegate_hash_table_add (delegate);
429 /* when the object is collected, collect the dynamic method, too */
430 mono_object_register_finalizer ((MonoObject*)delegate);
432 return delegate->delegate_trampoline;
435 if (target_handle != 0)
436 mono_gchandle_free (target_handle);
437 mono_error_set_pending_exception (&error);
442 * this hash table maps from a delegate trampoline object to a weak reference
443 * of the delegate. As an optimizations with a non-moving GC we store the
444 * object pointer itself, otherwise we use a GC handle.
446 static GHashTable *delegate_hash_table;
449 delegate_hash_table_new (void) {
450 return g_hash_table_new (NULL, NULL);
454 delegate_hash_table_remove (MonoDelegate *d)
456 guint32 gchandle = 0;
458 mono_marshal_lock ();
459 if (delegate_hash_table == NULL)
460 delegate_hash_table = delegate_hash_table_new ();
461 if (mono_gc_is_moving ())
462 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
463 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
464 mono_marshal_unlock ();
465 if (gchandle && mono_gc_is_moving ())
466 mono_gchandle_free (gchandle);
470 delegate_hash_table_add (MonoDelegate *d)
473 guint32 old_gchandle;
475 mono_marshal_lock ();
476 if (delegate_hash_table == NULL)
477 delegate_hash_table = delegate_hash_table_new ();
478 if (mono_gc_is_moving ()) {
479 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
480 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
481 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
483 mono_gchandle_free (old_gchandle);
485 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
487 mono_marshal_unlock ();
491 * mono_marshal_use_aot_wrappers:
493 * Instructs this module to use AOT compatible wrappers.
496 mono_marshal_use_aot_wrappers (gboolean use)
498 use_aot_wrappers = use;
502 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
505 MonoCustomAttrInfo *cinfo;
506 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
508 /* The attribute is only available in Net 2.0 */
509 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
511 * The pinvoke attributes are stored in a real custom attribute so we have to
514 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
515 if (!mono_error_ok (&error)) {
516 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
517 mono_error_cleanup (&error);
519 if (cinfo && !mono_runtime_get_no_exec ()) {
520 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
522 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
524 if (!mono_error_ok (&error)) {
525 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
526 mono_error_cleanup (&error);
530 mono_custom_attrs_free (cinfo);
535 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
537 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
546 mono_marshal_lock ();
547 if (delegate_hash_table == NULL)
548 delegate_hash_table = delegate_hash_table_new ();
550 if (mono_gc_is_moving ()) {
551 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
552 mono_marshal_unlock ();
554 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
558 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
559 mono_marshal_unlock ();
562 /* This is a native function, so construct a delegate for it */
563 MonoMethodSignature *sig;
565 MonoMarshalSpec **mspecs;
566 MonoMethod *invoke = mono_get_delegate_invoke (klass);
567 MonoMethodPInvoke piinfo;
568 MonoObject *this_obj;
571 if (use_aot_wrappers) {
572 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
573 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
574 if (!is_ok (&error)) {
575 mono_error_set_pending_exception (&error);
579 memset (&piinfo, 0, sizeof (piinfo));
580 parse_unmanaged_function_pointer_attr (klass, &piinfo);
582 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
583 mono_method_get_marshal_info (invoke, mspecs);
584 /* Freed below so don't alloc from mempool */
585 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
588 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
591 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
593 mono_metadata_free_marshal_spec (mspecs [i]);
598 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
599 if (!mono_error_ok (&error)) {
600 mono_error_set_pending_exception (&error);
603 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
604 if (mono_error_set_pending_exception (&error))
606 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper, &error);
607 if (mono_error_set_pending_exception (&error))
611 if (d->object.vtable->domain != mono_domain_get ()) {
612 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
620 mono_delegate_free_ftnptr (MonoDelegate *delegate)
625 delegate_hash_table_remove (delegate);
627 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
629 if (!delegate->target) {
630 /* The wrapper method is shared between delegates -> no need to free it */
639 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
642 method = mono_jit_info_get_method (ji);
643 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
645 /*the target gchandle is the first entry after size and the wrapper itself.*/
646 gchandle = GPOINTER_TO_UINT (method_data [2]);
649 mono_gchandle_free (gchandle);
651 mono_runtime_free_method (mono_object_domain (delegate), method);
655 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
657 mono_string_from_byvalstr (const char *data, int max_len)
660 MonoDomain *domain = mono_domain_get ();
666 while (len < max_len - 1 && data [len])
669 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
670 mono_error_set_pending_exception (&error);
674 /* This is a JIT icall, it sets the pending exception and return NULL on error */
676 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
679 MonoString *res = NULL;
680 MonoDomain *domain = mono_domain_get ();
686 while (data [len]) len++;
688 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
689 if (!mono_error_ok (&error)) {
690 mono_error_set_pending_exception (&error);
697 mono_array_to_savearray (MonoArray *array)
702 g_assert_not_reached ();
707 mono_array_to_lparray (MonoArray *array)
710 gpointer *nativeArray = NULL;
711 int nativeArraySize = 0;
721 klass = array->obj.vtable->klass;
723 switch (klass->element_class->byval_arg.type) {
725 g_assert_not_reached ();
727 case MONO_TYPE_CLASS:
728 nativeArraySize = array->max_length;
729 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
730 for(i = 0; i < nativeArraySize; ++i)
731 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
734 case MONO_TYPE_BOOLEAN:
747 case MONO_TYPE_VALUETYPE:
751 case MONO_TYPE_GENERICINST:
752 case MONO_TYPE_OBJECT:
753 case MONO_TYPE_ARRAY:
754 case MONO_TYPE_SZARRAY:
755 case MONO_TYPE_STRING:
757 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
758 g_assert_not_reached ();
761 return array->vector;
765 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
776 klass = array->obj.vtable->klass;
778 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
779 for(i = 0; i < array->max_length; ++i)
780 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
781 g_free (nativeArray);
787 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
789 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
791 if (elclass == mono_defaults.byte_class) {
792 GError *error = NULL;
796 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
799 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
803 g_error_free (error);
806 g_assert_not_reached ();
810 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
812 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
815 /* This is a JIT icall, it sets the pending exception and returns on error */
817 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
819 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
821 if (elclass == mono_defaults.byte_class) {
823 GError *error = NULL;
825 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
827 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
828 g_error_free (error);
832 memcpy (native_arr, as, MIN (strlen (as), elnum));
835 g_assert_not_reached ();
840 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
842 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
845 static MonoStringBuilder *
846 mono_string_builder_new (int starting_string_length)
848 static MonoClass *string_builder_class;
849 static MonoMethod *sb_ctor;
850 static void *args [1];
853 int initial_len = starting_string_length;
859 MonoMethodDesc *desc;
862 string_builder_class = mono_class_get_string_builder_class ();
863 g_assert (string_builder_class);
864 desc = mono_method_desc_new (":.ctor(int)", FALSE);
865 m = mono_method_desc_search_in_class (desc, string_builder_class);
867 mono_method_desc_free (desc);
868 mono_memory_barrier ();
872 // We make a new array in the _to_builder function, so this
873 // array will always be garbage collected.
874 args [0] = &initial_len;
876 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
877 mono_error_assert_ok (&error);
880 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
881 g_assert (exc == NULL);
882 mono_error_assert_ok (&error);
884 g_assert (sb->chunkChars->max_length >= initial_len);
890 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
892 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
893 gunichar2 *charSrc = (gunichar2 *)text;
894 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
896 sb->chunkLength = string_len;
902 mono_string_utf16_to_builder2 (gunichar2 *text)
908 for (len = 0; text [len] != 0; ++len);
910 MonoStringBuilder *sb = mono_string_builder_new (len);
911 mono_string_utf16_to_builder (sb, text);
917 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
922 int len = strlen (text);
923 if (len > mono_string_builder_capacity (sb))
924 len = mono_string_builder_capacity (sb);
926 GError *error = NULL;
928 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
931 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
932 mono_string_utf16_to_builder_copy (sb, ut, copied);
934 g_error_free (error);
940 mono_string_utf8_to_builder2 (char *text)
945 int len = strlen (text);
946 MonoStringBuilder *sb = mono_string_builder_new (len);
947 mono_string_utf8_to_builder (sb, text);
954 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
960 for (len = 0; text [len] != 0; ++len);
962 if (len > mono_string_builder_capacity (sb))
963 len = mono_string_builder_capacity (sb);
965 mono_string_utf16_to_builder_copy (sb, text, len);
969 * mono_string_builder_to_utf8:
970 * @sb: the string builder
972 * Converts to utf8 the contents of the MonoStringBuilder.
974 * Returns: a utf8 string with the contents of the StringBuilder.
976 * The return value must be released with mono_marshal_free.
978 * This is a JIT icall, it sets the pending exception and returns NULL on error.
981 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
984 GError *gerror = NULL;
989 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
991 guint str_len = mono_string_builder_string_length (sb);
993 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
996 g_error_free (gerror);
997 mono_marshal_free (str_utf16);
998 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1001 guint len = mono_string_builder_capacity (sb) + 1;
1002 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
1003 if (!mono_error_ok (&error)) {
1004 mono_marshal_free (str_utf16);
1006 mono_error_set_pending_exception (&error);
1010 g_assert (str_len < len);
1011 memcpy (res, tmp, str_len * sizeof (gchar));
1012 res[str_len] = '\0';
1014 mono_marshal_free (str_utf16);
1021 * mono_string_builder_to_utf16:
1022 * @sb: the string builder
1024 * Converts to utf16 the contents of the MonoStringBuilder.
1026 * Returns: a utf16 string with the contents of the StringBuilder.
1028 * The return value must be released with mono_marshal_free.
1030 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1033 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1040 g_assert (sb->chunkChars);
1042 guint len = mono_string_builder_capacity (sb);
1047 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1048 if (!mono_error_ok (&error)) {
1049 mono_error_set_pending_exception (&error);
1058 MonoStringBuilder* chunk = sb;
1060 if (chunk->chunkLength > 0) {
1061 // Check that we will not overrun our boundaries.
1062 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1064 if (chunk->chunkLength <= len) {
1065 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1067 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1070 len -= chunk->chunkLength;
1072 chunk = chunk->chunkPrevious;
1073 } while (chunk != NULL);
1078 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1080 mono_string_to_lpstr (MonoString *s)
1085 GError *error = NULL;
1091 as = CoTaskMemAlloc (1);
1096 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1098 MonoException *exc = mono_get_exception_argument ("string", error->message);
1099 g_error_free (error);
1100 mono_set_pending_exception (exc);
1103 as = CoTaskMemAlloc (len + 1);
1104 memcpy (as, tmp, len + 1);
1110 char *result = mono_string_to_utf8_checked (s, &error);
1111 mono_error_set_pending_exception (&error);
1117 mono_string_to_ansibstr (MonoString *string_obj)
1119 g_error ("UnmanagedMarshal.BStr is not implemented.");
1124 * mono_string_to_byvalstr:
1125 * @dst: Where to store the null-terminated utf8 decoded string.
1126 * @src: the MonoString to copy.
1127 * @size: the maximum number of bytes to copy.
1129 * Copies the MonoString pointed to by @src as a utf8 string
1130 * into @dst, it copies at most @size bytes into the destination.
1133 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1139 g_assert (dst != NULL);
1140 g_assert (size > 0);
1142 memset (dst, 0, size);
1146 s = mono_string_to_utf8_checked (src, &error);
1147 if (mono_error_set_pending_exception (&error))
1149 len = MIN (size, strlen (s));
1152 memcpy (dst, s, len);
1157 * mono_string_to_byvalwstr:
1158 * @dst: Where to store the null-terminated utf16 decoded string.
1159 * @src: the MonoString to copy.
1160 * @size: the maximum number of bytes to copy.
1162 * Copies the MonoString pointed to by @src as a utf16 string into
1163 * @dst, it copies at most @size bytes into the destination (including
1164 * a terminating 16-bit zero terminator).
1167 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1171 g_assert (dst != NULL);
1172 g_assert (size > 1);
1175 memset (dst, 0, size * 2);
1179 len = MIN (size, (mono_string_length (src)));
1180 memcpy (dst, mono_string_chars (src), size * 2);
1181 if (size <= mono_string_length (src))
1183 *((gunichar2 *) dst + len) = 0;
1186 /* this is an icall, it sets the pending exception and returns NULL on error */
1188 mono_string_new_len_wrapper (const char *text, guint length)
1191 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1192 mono_error_set_pending_exception (&error);
1199 * mono_mb_emit_exception_marshal_directive:
1201 * This function assumes ownership of MSG, which should be malloc-ed.
1204 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1209 s = mono_image_strdup (mb->method->klass->image, msg);
1214 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1217 #endif /* !DISABLE_JIT */
1220 mono_type_to_ldind (MonoType *type)
1226 switch (type->type) {
1228 return CEE_LDIND_I1;
1230 case MONO_TYPE_BOOLEAN:
1231 return CEE_LDIND_U1;
1233 return CEE_LDIND_I2;
1235 case MONO_TYPE_CHAR:
1236 return CEE_LDIND_U2;
1238 return CEE_LDIND_I4;
1240 return CEE_LDIND_U4;
1244 case MONO_TYPE_FNPTR:
1246 case MONO_TYPE_CLASS:
1247 case MONO_TYPE_STRING:
1248 case MONO_TYPE_OBJECT:
1249 case MONO_TYPE_SZARRAY:
1250 case MONO_TYPE_ARRAY:
1251 return CEE_LDIND_REF;
1254 return CEE_LDIND_I8;
1256 return CEE_LDIND_R4;
1258 return CEE_LDIND_R8;
1259 case MONO_TYPE_VALUETYPE:
1260 if (type->data.klass->enumtype) {
1261 type = mono_class_enum_basetype (type->data.klass);
1265 case MONO_TYPE_TYPEDBYREF:
1267 case MONO_TYPE_GENERICINST:
1268 type = &type->data.generic_class->container_class->byval_arg;
1271 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1277 mono_type_to_stind (MonoType *type)
1280 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1284 switch (type->type) {
1287 case MONO_TYPE_BOOLEAN:
1288 return CEE_STIND_I1;
1291 case MONO_TYPE_CHAR:
1292 return CEE_STIND_I2;
1295 return CEE_STIND_I4;
1299 case MONO_TYPE_FNPTR:
1301 case MONO_TYPE_CLASS:
1302 case MONO_TYPE_STRING:
1303 case MONO_TYPE_OBJECT:
1304 case MONO_TYPE_SZARRAY:
1305 case MONO_TYPE_ARRAY:
1306 return CEE_STIND_REF;
1309 return CEE_STIND_I8;
1311 return CEE_STIND_R4;
1313 return CEE_STIND_R8;
1314 case MONO_TYPE_VALUETYPE:
1315 if (type->data.klass->enumtype) {
1316 type = mono_class_enum_basetype (type->data.klass);
1320 case MONO_TYPE_TYPEDBYREF:
1322 case MONO_TYPE_GENERICINST:
1323 type = &type->data.generic_class->container_class->byval_arg;
1326 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1334 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1337 case MONO_MARSHAL_CONV_BOOL_I4:
1338 mono_mb_emit_ldloc (mb, 1);
1339 mono_mb_emit_ldloc (mb, 0);
1340 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1341 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1342 mono_mb_emit_byte (mb, 3);
1343 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1344 mono_mb_emit_byte (mb, CEE_BR_S);
1345 mono_mb_emit_byte (mb, 1);
1346 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1347 mono_mb_emit_byte (mb, CEE_STIND_I1);
1349 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1350 mono_mb_emit_ldloc (mb, 1);
1351 mono_mb_emit_ldloc (mb, 0);
1352 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1353 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1354 mono_mb_emit_byte (mb, 3);
1355 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1356 mono_mb_emit_byte (mb, CEE_BR_S);
1357 mono_mb_emit_byte (mb, 1);
1358 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1359 mono_mb_emit_byte (mb, CEE_STIND_I1);
1361 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1362 MonoClass *eklass = NULL;
1365 if (type->type == MONO_TYPE_SZARRAY) {
1366 eklass = type->data.klass;
1368 g_assert_not_reached ();
1371 esize = mono_class_native_size (eklass, NULL);
1373 /* create a new array */
1374 mono_mb_emit_ldloc (mb, 1);
1375 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1376 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1377 mono_mb_emit_byte (mb, CEE_STIND_REF);
1379 if (eklass->blittable) {
1380 /* copy the elements */
1381 mono_mb_emit_ldloc (mb, 1);
1382 mono_mb_emit_byte (mb, CEE_LDIND_I);
1383 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1384 mono_mb_emit_byte (mb, CEE_ADD);
1385 mono_mb_emit_ldloc (mb, 0);
1386 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1387 mono_mb_emit_byte (mb, CEE_PREFIX1);
1388 mono_mb_emit_byte (mb, CEE_CPBLK);
1391 int array_var, src_var, dst_var, index_var;
1392 guint32 label2, label3;
1394 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1395 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1396 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1399 mono_mb_emit_ldloc (mb, 1);
1400 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1401 mono_mb_emit_stloc (mb, array_var);
1403 /* save the old src pointer */
1404 mono_mb_emit_ldloc (mb, 0);
1405 mono_mb_emit_stloc (mb, src_var);
1406 /* save the old dst pointer */
1407 mono_mb_emit_ldloc (mb, 1);
1408 mono_mb_emit_stloc (mb, dst_var);
1410 /* Emit marshalling loop */
1411 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1412 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1413 mono_mb_emit_stloc (mb, index_var);
1416 label2 = mono_mb_get_label (mb);
1417 mono_mb_emit_ldloc (mb, index_var);
1418 mono_mb_emit_ldloc (mb, array_var);
1419 mono_mb_emit_byte (mb, CEE_LDLEN);
1420 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1422 /* src is already set */
1425 mono_mb_emit_ldloc (mb, array_var);
1426 mono_mb_emit_ldloc (mb, index_var);
1427 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1428 mono_mb_emit_stloc (mb, 1);
1430 /* Do the conversion */
1431 emit_struct_conv (mb, eklass, TRUE);
1434 mono_mb_emit_add_to_local (mb, index_var, 1);
1436 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1438 mono_mb_patch_branch (mb, label3);
1440 /* restore the old src pointer */
1441 mono_mb_emit_ldloc (mb, src_var);
1442 mono_mb_emit_stloc (mb, 0);
1443 /* restore the old dst pointer */
1444 mono_mb_emit_ldloc (mb, dst_var);
1445 mono_mb_emit_stloc (mb, 1);
1449 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1450 MonoClass *eclass = mono_defaults.char_class;
1452 /* create a new array */
1453 mono_mb_emit_ldloc (mb, 1);
1454 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1455 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1456 mono_mb_emit_byte (mb, CEE_STIND_REF);
1458 mono_mb_emit_ldloc (mb, 1);
1459 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1460 mono_mb_emit_ldloc (mb, 0);
1461 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1462 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1465 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1466 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1467 mono_mb_emit_ldloc (mb, 1);
1468 mono_mb_emit_ldloc (mb, 0);
1469 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1470 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1472 mono_mb_emit_ldloc (mb, 1);
1473 mono_mb_emit_ldloc (mb, 0);
1474 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1476 mono_mb_emit_byte (mb, CEE_STIND_REF);
1478 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1479 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1480 mono_mb_emit_ldloc (mb, 1);
1481 mono_mb_emit_ldloc (mb, 0);
1482 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1483 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1485 mono_mb_emit_ldloc (mb, 1);
1486 mono_mb_emit_ldloc (mb, 0);
1487 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1489 mono_mb_emit_byte (mb, CEE_STIND_REF);
1491 case MONO_MARSHAL_CONV_STR_LPTSTR:
1492 mono_mb_emit_ldloc (mb, 1);
1493 mono_mb_emit_ldloc (mb, 0);
1494 mono_mb_emit_byte (mb, CEE_LDIND_I);
1496 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1498 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1500 mono_mb_emit_byte (mb, CEE_STIND_REF);
1502 case MONO_MARSHAL_CONV_STR_LPSTR:
1503 mono_mb_emit_ldloc (mb, 1);
1504 mono_mb_emit_ldloc (mb, 0);
1505 mono_mb_emit_byte (mb, CEE_LDIND_I);
1506 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1507 mono_mb_emit_byte (mb, CEE_STIND_REF);
1509 case MONO_MARSHAL_CONV_STR_LPWSTR:
1510 mono_mb_emit_ldloc (mb, 1);
1511 mono_mb_emit_ldloc (mb, 0);
1512 mono_mb_emit_byte (mb, CEE_LDIND_I);
1513 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1514 mono_mb_emit_byte (mb, CEE_STIND_REF);
1516 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1517 MonoClass *klass = mono_class_from_mono_type (type);
1518 int src_var, dst_var;
1520 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1521 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1523 /* *dst = new object */
1524 mono_mb_emit_ldloc (mb, 1);
1525 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1526 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1527 mono_mb_emit_byte (mb, CEE_STIND_REF);
1529 /* save the old src pointer */
1530 mono_mb_emit_ldloc (mb, 0);
1531 mono_mb_emit_stloc (mb, src_var);
1532 /* save the old dst pointer */
1533 mono_mb_emit_ldloc (mb, 1);
1534 mono_mb_emit_stloc (mb, dst_var);
1536 /* dst = pointer to newly created object data */
1537 mono_mb_emit_ldloc (mb, 1);
1538 mono_mb_emit_byte (mb, CEE_LDIND_I);
1539 mono_mb_emit_icon (mb, sizeof (MonoObject));
1540 mono_mb_emit_byte (mb, CEE_ADD);
1541 mono_mb_emit_stloc (mb, 1);
1543 emit_struct_conv (mb, klass, TRUE);
1545 /* restore the old src pointer */
1546 mono_mb_emit_ldloc (mb, src_var);
1547 mono_mb_emit_stloc (mb, 0);
1548 /* restore the old dst pointer */
1549 mono_mb_emit_ldloc (mb, dst_var);
1550 mono_mb_emit_stloc (mb, 1);
1553 case MONO_MARSHAL_CONV_DEL_FTN: {
1554 MonoClass *klass = mono_class_from_mono_type (type);
1556 mono_mb_emit_ldloc (mb, 1);
1557 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1558 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1559 mono_mb_emit_ldloc (mb, 0);
1560 mono_mb_emit_byte (mb, CEE_LDIND_I);
1561 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1562 mono_mb_emit_byte (mb, CEE_STIND_REF);
1565 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1566 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1570 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1571 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1572 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1573 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1575 #endif /* DISABLE_COM */
1577 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1579 * Passing SafeHandles as ref does not allow the unmanaged code
1580 * to change the SafeHandle value. If the value is changed,
1581 * we should issue a diagnostic exception (NotSupportedException)
1582 * that informs the user that changes to handles in unmanaged code
1585 * Since we currently have no access to the original
1586 * SafeHandle that was used during the marshalling,
1587 * for now we just ignore this, and ignore/discard any
1588 * changes that might have happened to the handle.
1593 case MONO_MARSHAL_CONV_HANDLEREF: {
1595 * Passing HandleRefs in a struct that is ref()ed does not
1596 * copy the values back to the HandleRef
1601 case MONO_MARSHAL_CONV_STR_BSTR:
1602 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1603 case MONO_MARSHAL_CONV_STR_TBSTR:
1604 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1606 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1608 mono_mb_emit_exception_marshal_directive (mb, msg);
1615 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1618 if (!ind_store_type)
1619 ind_store_type = &dummy;
1620 *ind_store_type = CEE_STIND_I;
1622 case MONO_MARSHAL_CONV_STR_LPWSTR:
1623 return mono_marshal_string_to_utf16;
1624 case MONO_MARSHAL_CONV_LPWSTR_STR:
1625 *ind_store_type = CEE_STIND_REF;
1626 return ves_icall_mono_string_from_utf16;
1627 case MONO_MARSHAL_CONV_LPTSTR_STR:
1628 *ind_store_type = CEE_STIND_REF;
1629 return mono_string_new_wrapper;
1630 case MONO_MARSHAL_CONV_LPSTR_STR:
1631 *ind_store_type = CEE_STIND_REF;
1632 return mono_string_new_wrapper;
1633 case MONO_MARSHAL_CONV_STR_LPTSTR:
1635 return mono_marshal_string_to_utf16;
1637 return mono_string_to_lpstr;
1639 case MONO_MARSHAL_CONV_STR_LPSTR:
1640 return mono_string_to_lpstr;
1641 case MONO_MARSHAL_CONV_STR_BSTR:
1642 return mono_string_to_bstr;
1643 case MONO_MARSHAL_CONV_BSTR_STR:
1644 *ind_store_type = CEE_STIND_REF;
1645 return mono_string_from_bstr_icall;
1646 case MONO_MARSHAL_CONV_STR_TBSTR:
1647 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1648 return mono_string_to_ansibstr;
1649 case MONO_MARSHAL_CONV_SB_LPSTR:
1650 return mono_string_builder_to_utf8;
1651 case MONO_MARSHAL_CONV_SB_LPTSTR:
1653 return mono_string_builder_to_utf16;
1655 return mono_string_builder_to_utf8;
1657 case MONO_MARSHAL_CONV_SB_LPWSTR:
1658 return mono_string_builder_to_utf16;
1659 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1660 return mono_array_to_savearray;
1661 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1662 return mono_array_to_lparray;
1663 case MONO_MARSHAL_FREE_LPARRAY:
1664 return mono_free_lparray;
1665 case MONO_MARSHAL_CONV_DEL_FTN:
1666 return mono_delegate_to_ftnptr;
1667 case MONO_MARSHAL_CONV_FTN_DEL:
1668 *ind_store_type = CEE_STIND_REF;
1669 return mono_ftnptr_to_delegate;
1670 case MONO_MARSHAL_CONV_LPSTR_SB:
1671 *ind_store_type = CEE_STIND_REF;
1672 return mono_string_utf8_to_builder;
1673 case MONO_MARSHAL_CONV_LPTSTR_SB:
1674 *ind_store_type = CEE_STIND_REF;
1676 return mono_string_utf16_to_builder;
1678 return mono_string_utf8_to_builder;
1680 case MONO_MARSHAL_CONV_LPWSTR_SB:
1681 *ind_store_type = CEE_STIND_REF;
1682 return mono_string_utf16_to_builder;
1683 case MONO_MARSHAL_FREE_ARRAY:
1684 return mono_marshal_free_array;
1685 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1686 return mono_string_to_byvalstr;
1687 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1688 return mono_string_to_byvalwstr;
1690 g_assert_not_reached ();
1697 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1703 case MONO_MARSHAL_CONV_BOOL_I4:
1704 mono_mb_emit_ldloc (mb, 1);
1705 mono_mb_emit_ldloc (mb, 0);
1706 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1707 mono_mb_emit_byte (mb, CEE_STIND_I4);
1709 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1710 mono_mb_emit_ldloc (mb, 1);
1711 mono_mb_emit_ldloc (mb, 0);
1712 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1713 mono_mb_emit_byte (mb, CEE_NEG);
1714 mono_mb_emit_byte (mb, CEE_STIND_I2);
1716 case MONO_MARSHAL_CONV_STR_LPWSTR:
1717 case MONO_MARSHAL_CONV_STR_LPSTR:
1718 case MONO_MARSHAL_CONV_STR_LPTSTR:
1719 case MONO_MARSHAL_CONV_STR_BSTR:
1720 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1721 case MONO_MARSHAL_CONV_STR_TBSTR: {
1724 /* free space if free == true */
1725 mono_mb_emit_ldloc (mb, 2);
1726 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1727 mono_mb_emit_ldloc (mb, 1);
1728 mono_mb_emit_byte (mb, CEE_LDIND_I);
1729 mono_mb_emit_icall (mb, g_free);
1730 mono_mb_patch_short_branch (mb, pos);
1732 mono_mb_emit_ldloc (mb, 1);
1733 mono_mb_emit_ldloc (mb, 0);
1734 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1735 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1736 mono_mb_emit_byte (mb, stind_op);
1739 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1740 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1741 case MONO_MARSHAL_CONV_DEL_FTN:
1742 mono_mb_emit_ldloc (mb, 1);
1743 mono_mb_emit_ldloc (mb, 0);
1744 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1745 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1746 mono_mb_emit_byte (mb, stind_op);
1748 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1749 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1752 mono_mb_emit_ldloc (mb, 1); /* dst */
1753 mono_mb_emit_ldloc (mb, 0);
1754 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1755 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1756 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1759 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1760 MonoClass *eklass = NULL;
1763 if (type->type == MONO_TYPE_SZARRAY) {
1764 eklass = type->data.klass;
1766 g_assert_not_reached ();
1769 if (eklass->valuetype)
1770 esize = mono_class_native_size (eklass, NULL);
1772 esize = sizeof (gpointer);
1774 mono_mb_emit_ldloc (mb, 0);
1775 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1776 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1778 if (eklass->blittable) {
1779 mono_mb_emit_ldloc (mb, 1);
1780 mono_mb_emit_ldloc (mb, 0);
1781 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1782 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1783 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1784 mono_mb_emit_byte (mb, CEE_PREFIX1);
1785 mono_mb_emit_byte (mb, CEE_CPBLK);
1787 int array_var, src_var, dst_var, index_var;
1788 guint32 label2, label3;
1790 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1791 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1792 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1795 mono_mb_emit_ldloc (mb, 0);
1796 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1797 mono_mb_emit_stloc (mb, array_var);
1799 /* save the old src pointer */
1800 mono_mb_emit_ldloc (mb, 0);
1801 mono_mb_emit_stloc (mb, src_var);
1802 /* save the old dst pointer */
1803 mono_mb_emit_ldloc (mb, 1);
1804 mono_mb_emit_stloc (mb, dst_var);
1806 /* Emit marshalling loop */
1807 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1808 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1809 mono_mb_emit_stloc (mb, index_var);
1812 label2 = mono_mb_get_label (mb);
1813 mono_mb_emit_ldloc (mb, index_var);
1814 mono_mb_emit_ldloc (mb, array_var);
1815 mono_mb_emit_byte (mb, CEE_LDLEN);
1816 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1819 mono_mb_emit_ldloc (mb, array_var);
1820 mono_mb_emit_ldloc (mb, index_var);
1821 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1822 mono_mb_emit_stloc (mb, 0);
1824 /* dst is already set */
1826 /* Do the conversion */
1827 emit_struct_conv (mb, eklass, FALSE);
1830 mono_mb_emit_add_to_local (mb, index_var, 1);
1832 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1834 mono_mb_patch_branch (mb, label3);
1836 /* restore the old src pointer */
1837 mono_mb_emit_ldloc (mb, src_var);
1838 mono_mb_emit_stloc (mb, 0);
1839 /* restore the old dst pointer */
1840 mono_mb_emit_ldloc (mb, dst_var);
1841 mono_mb_emit_stloc (mb, 1);
1844 mono_mb_patch_branch (mb, pos);
1847 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1848 mono_mb_emit_ldloc (mb, 0);
1849 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1850 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1852 mono_mb_emit_ldloc (mb, 1);
1853 mono_mb_emit_ldloc (mb, 0);
1854 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1855 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1856 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1857 mono_mb_patch_short_branch (mb, pos);
1860 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1861 int src_var, dst_var;
1863 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1864 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1866 mono_mb_emit_ldloc (mb, 0);
1867 mono_mb_emit_byte (mb, CEE_LDIND_I);
1868 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1870 /* save the old src pointer */
1871 mono_mb_emit_ldloc (mb, 0);
1872 mono_mb_emit_stloc (mb, src_var);
1873 /* save the old dst pointer */
1874 mono_mb_emit_ldloc (mb, 1);
1875 mono_mb_emit_stloc (mb, dst_var);
1877 /* src = pointer to object data */
1878 mono_mb_emit_ldloc (mb, 0);
1879 mono_mb_emit_byte (mb, CEE_LDIND_I);
1880 mono_mb_emit_icon (mb, sizeof (MonoObject));
1881 mono_mb_emit_byte (mb, CEE_ADD);
1882 mono_mb_emit_stloc (mb, 0);
1884 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1886 /* restore the old src pointer */
1887 mono_mb_emit_ldloc (mb, src_var);
1888 mono_mb_emit_stloc (mb, 0);
1889 /* restore the old dst pointer */
1890 mono_mb_emit_ldloc (mb, dst_var);
1891 mono_mb_emit_stloc (mb, 1);
1893 mono_mb_patch_branch (mb, pos);
1898 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1899 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1900 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1901 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1903 #endif /* DISABLE_COM */
1905 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1908 mono_mb_emit_ldloc (mb, 0);
1909 mono_mb_emit_byte (mb, CEE_LDIND_I);
1910 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1911 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1912 mono_mb_patch_branch (mb, pos);
1914 /* Pull the handle field from SafeHandle */
1915 mono_mb_emit_ldloc (mb, 1);
1916 mono_mb_emit_ldloc (mb, 0);
1917 mono_mb_emit_byte (mb, CEE_LDIND_I);
1918 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1919 mono_mb_emit_byte (mb, CEE_LDIND_I);
1920 mono_mb_emit_byte (mb, CEE_STIND_I);
1924 case MONO_MARSHAL_CONV_HANDLEREF: {
1925 mono_mb_emit_ldloc (mb, 1);
1926 mono_mb_emit_ldloc (mb, 0);
1927 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1928 mono_mb_emit_byte (mb, CEE_ADD);
1929 mono_mb_emit_byte (mb, CEE_LDIND_I);
1930 mono_mb_emit_byte (mb, CEE_STIND_I);
1935 g_error ("marshalling conversion %d not implemented", conv);
1940 static int offset_of_first_nonstatic_field(MonoClass *klass)
1943 for (i = 0; i < klass->field.count; i++) {
1944 if (!(klass->fields[i].type->attrs & FIELD_ATTRIBUTE_STATIC) && !mono_field_is_deleted (&klass->fields[i]))
1945 return klass->fields[i].offset - sizeof (MonoObject);
1952 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1953 int offset_of_first_child_field, MonoMarshalNative string_encoding)
1955 MonoMarshalType *info;
1959 emit_struct_conv_full (mb, klass->parent, to_object, offset_of_first_nonstatic_field (klass), string_encoding);
1961 info = mono_marshal_load_type_info (klass);
1963 if (info->native_size == 0)
1966 if (klass->blittable) {
1967 int usize = mono_class_value_size (klass, NULL);
1968 g_assert (usize == info->native_size);
1969 mono_mb_emit_ldloc (mb, 1);
1970 mono_mb_emit_ldloc (mb, 0);
1971 mono_mb_emit_icon (mb, usize);
1972 mono_mb_emit_byte (mb, CEE_PREFIX1);
1973 mono_mb_emit_byte (mb, CEE_CPBLK);
1976 mono_mb_emit_add_to_local (mb, 0, usize);
1977 mono_mb_emit_add_to_local (mb, 1, offset_of_first_child_field);
1979 mono_mb_emit_add_to_local (mb, 0, offset_of_first_child_field);
1980 mono_mb_emit_add_to_local (mb, 1, usize);
1985 if (klass != mono_class_try_get_safehandle_class ()) {
1986 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1987 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1988 mono_type_full_name (&klass->byval_arg));
1989 mono_mb_emit_exception_marshal_directive (mb, msg);
1994 for (i = 0; i < info->num_fields; i++) {
1995 MonoMarshalNative ntype;
1996 MonoMarshalConv conv;
1997 MonoType *ftype = info->fields [i].field->type;
2000 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2002 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2005 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2008 msize = klass->instance_size - info->fields [i].field->offset;
2009 usize = info->native_size - info->fields [i].offset;
2011 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2012 usize = info->fields [i + 1].offset - info->fields [i].offset;
2015 if (klass != mono_class_try_get_safehandle_class ()){
2017 * FIXME: Should really check for usize==0 and msize>0, but we apply
2018 * the layout to the managed structure as well.
2021 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
2022 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2023 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2024 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2025 "reference field at the same offset as another field.",
2026 mono_type_full_name (&klass->byval_arg));
2031 case MONO_MARSHAL_CONV_NONE: {
2034 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2035 g_assert (!ftype->byref);
2036 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2037 mono_mb_emit_ldloc (mb, 1);
2038 mono_mb_emit_ldloc (mb, 0);
2039 mono_mb_emit_byte (mb, CEE_LDIND_I);
2040 mono_mb_emit_byte (mb, CEE_STIND_I);
2051 case MONO_TYPE_BOOLEAN:
2054 case MONO_TYPE_CHAR:
2060 mono_mb_emit_ldloc (mb, 1);
2061 mono_mb_emit_ldloc (mb, 0);
2062 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2064 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2065 mono_mb_emit_byte (mb, CEE_STIND_I2);
2067 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2068 mono_mb_emit_byte (mb, CEE_STIND_I1);
2071 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2072 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2075 case MONO_TYPE_VALUETYPE: {
2076 int src_var, dst_var;
2078 if (ftype->data.klass->enumtype) {
2079 ftype = mono_class_enum_basetype (ftype->data.klass);
2083 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2084 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2086 /* save the old src pointer */
2087 mono_mb_emit_ldloc (mb, 0);
2088 mono_mb_emit_stloc (mb, src_var);
2089 /* save the old dst pointer */
2090 mono_mb_emit_ldloc (mb, 1);
2091 mono_mb_emit_stloc (mb, dst_var);
2093 emit_struct_conv (mb, ftype->data.klass, to_object);
2095 /* restore the old src pointer */
2096 mono_mb_emit_ldloc (mb, src_var);
2097 mono_mb_emit_stloc (mb, 0);
2098 /* restore the old dst pointer */
2099 mono_mb_emit_ldloc (mb, dst_var);
2100 mono_mb_emit_stloc (mb, 1);
2103 case MONO_TYPE_OBJECT: {
2106 static MonoMethod *variant_clear = NULL;
2107 static MonoMethod *get_object_for_native_variant = NULL;
2110 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2111 if (!get_object_for_native_variant)
2112 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2113 mono_mb_emit_ldloc (mb, 1);
2114 mono_mb_emit_ldloc (mb, 0);
2115 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2116 mono_mb_emit_byte (mb, CEE_STIND_REF);
2118 mono_mb_emit_ldloc (mb, 0);
2119 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2122 static MonoMethod *get_native_variant_for_object = NULL;
2124 if (!get_native_variant_for_object)
2125 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2127 mono_mb_emit_ldloc (mb, 0);
2128 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2129 mono_mb_emit_ldloc (mb, 1);
2130 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2133 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2134 mono_mb_emit_exception_marshal_directive (mb, msg);
2140 g_warning ("marshaling type %02x not implemented", ftype->type);
2141 g_assert_not_reached ();
2146 int src_var, dst_var;
2148 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2149 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2151 /* save the old src pointer */
2152 mono_mb_emit_ldloc (mb, 0);
2153 mono_mb_emit_stloc (mb, src_var);
2154 /* save the old dst pointer */
2155 mono_mb_emit_ldloc (mb, 1);
2156 mono_mb_emit_stloc (mb, dst_var);
2159 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2161 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2163 /* restore the old src pointer */
2164 mono_mb_emit_ldloc (mb, src_var);
2165 mono_mb_emit_stloc (mb, 0);
2166 /* restore the old dst pointer */
2167 mono_mb_emit_ldloc (mb, dst_var);
2168 mono_mb_emit_stloc (mb, 1);
2173 mono_mb_emit_add_to_local (mb, 0, usize);
2174 mono_mb_emit_add_to_local (mb, 1, msize);
2176 mono_mb_emit_add_to_local (mb, 0, msize);
2177 mono_mb_emit_add_to_local (mb, 1, usize);
2183 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2185 emit_struct_conv_full (mb, klass, to_object, 0, (MonoMarshalNative)-1);
2189 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2191 /* Call DestroyStructure */
2192 /* FIXME: Only do this if needed */
2193 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2194 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2195 mono_mb_emit_ldloc (mb, struct_var);
2196 mono_mb_emit_icall (mb, mono_struct_delete_old);
2200 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2202 int pos_noabort, pos_noex;
2204 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2205 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2206 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2207 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2209 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2210 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2212 mono_mb_emit_icall (mb, checkpoint_func);
2213 /* Throw the exception returned by the checkpoint function, if any */
2214 mono_mb_emit_byte (mb, CEE_DUP);
2215 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2216 mono_mb_emit_byte (mb, CEE_THROW);
2217 mono_mb_patch_branch (mb, pos_noex);
2218 mono_mb_emit_byte (mb, CEE_POP);
2220 mono_mb_patch_branch (mb, pos_noabort);
2224 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2226 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2229 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2233 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2235 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2239 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2241 emit_thread_interrupt_checkpoint (mb);
2245 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2247 emit_thread_force_interrupt_checkpoint (mb);
2250 #endif /* DISABLE_JIT */
2252 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2253 static MonoAsyncResult *
2254 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2257 MonoMulticastDelegate *mcast_delegate;
2261 g_assert (delegate);
2262 mcast_delegate = (MonoMulticastDelegate *) delegate;
2263 if (mcast_delegate->delegates != NULL) {
2264 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2268 #ifndef DISABLE_REMOTING
2269 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2270 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2271 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2272 /* If the target is a proxy, make a direct call. Is proxy's work
2273 // to make the call asynchronous.
2275 MonoMethodMessage *msg;
2276 MonoDelegate *async_callback;
2278 MonoAsyncResult *ares;
2280 MonoArray *out_args;
2281 method = delegate->method;
2283 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2284 if (mono_error_set_pending_exception (&error))
2286 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2287 if (mono_error_set_pending_exception (&error))
2289 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2290 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2291 MONO_OBJECT_SETREF (msg, async_result, ares);
2292 msg->call_type = CallType_BeginInvoke;
2295 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2296 if (!mono_error_ok (&error)) {
2297 mono_error_set_pending_exception (&error);
2301 mono_set_pending_exception ((MonoException *) exc);
2307 klass = delegate->object.vtable->klass;
2309 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2311 method = mono_get_delegate_invoke (klass);
2314 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2315 mono_error_set_pending_exception (&error);
2322 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2324 int i, params_var, tmp_var;
2326 /* allocate local (pointer) *params[] */
2327 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2328 /* allocate local (pointer) tmp */
2329 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2331 /* alloate space on stack to store an array of pointers to the arguments */
2332 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2333 mono_mb_emit_byte (mb, CEE_PREFIX1);
2334 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2335 mono_mb_emit_stloc (mb, params_var);
2338 mono_mb_emit_ldloc (mb, params_var);
2339 mono_mb_emit_stloc (mb, tmp_var);
2341 if (save_this && sig->hasthis) {
2342 mono_mb_emit_ldloc (mb, tmp_var);
2343 mono_mb_emit_ldarg_addr (mb, 0);
2344 mono_mb_emit_byte (mb, CEE_STIND_I);
2345 /* tmp = tmp + sizeof (gpointer) */
2346 if (sig->param_count)
2347 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2351 for (i = 0; i < sig->param_count; i++) {
2352 mono_mb_emit_ldloc (mb, tmp_var);
2353 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2354 mono_mb_emit_byte (mb, CEE_STIND_I);
2355 /* tmp = tmp + sizeof (gpointer) */
2356 if (i < (sig->param_count - 1))
2357 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2363 #endif /* DISABLE_JIT */
2366 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2370 GString *res = g_string_new ("");
2373 g_string_append (res, prefix);
2374 g_string_append_c (res, '_');
2377 mono_type_get_desc (res, sig->ret, FALSE);
2380 g_string_append (res, "__this__");
2382 for (i = 0; i < sig->param_count; ++i) {
2383 g_string_append_c (res, '_');
2384 mono_type_get_desc (res, sig->params [i], FALSE);
2387 g_string_free (res, FALSE);
2392 * mono_marshal_get_string_encoding:
2394 * Return the string encoding which should be used for a given parameter.
2396 static MonoMarshalNative
2397 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2399 /* First try the parameter marshal info */
2401 if (spec->native == MONO_NATIVE_LPARRAY) {
2402 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2403 return spec->data.array_data.elem_type;
2406 return spec->native;
2410 return MONO_NATIVE_LPSTR;
2412 /* Then try the method level marshal info */
2413 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2414 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2415 return MONO_NATIVE_LPSTR;
2416 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2417 return MONO_NATIVE_LPWSTR;
2418 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2420 return MONO_NATIVE_LPWSTR;
2422 return MONO_NATIVE_LPSTR;
2425 return MONO_NATIVE_LPSTR;
2429 static MonoMarshalConv
2430 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2432 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2435 case MONO_NATIVE_LPWSTR:
2436 return MONO_MARSHAL_CONV_STR_LPWSTR;
2437 case MONO_NATIVE_LPSTR:
2438 case MONO_NATIVE_VBBYREFSTR:
2439 return MONO_MARSHAL_CONV_STR_LPSTR;
2440 case MONO_NATIVE_LPTSTR:
2441 return MONO_MARSHAL_CONV_STR_LPTSTR;
2442 case MONO_NATIVE_BSTR:
2443 return MONO_MARSHAL_CONV_STR_BSTR;
2445 return MONO_MARSHAL_CONV_INVALID;
2449 static MonoMarshalConv
2450 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2452 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2455 case MONO_NATIVE_LPWSTR:
2456 return MONO_MARSHAL_CONV_SB_LPWSTR;
2458 case MONO_NATIVE_LPSTR:
2459 return MONO_MARSHAL_CONV_SB_LPSTR;
2461 case MONO_NATIVE_LPTSTR:
2462 return MONO_MARSHAL_CONV_SB_LPTSTR;
2465 return MONO_MARSHAL_CONV_INVALID;
2469 static MonoMarshalConv
2470 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2472 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2477 case MONO_NATIVE_LPWSTR:
2479 return MONO_MARSHAL_CONV_LPWSTR_STR;
2480 case MONO_NATIVE_LPSTR:
2481 case MONO_NATIVE_VBBYREFSTR:
2482 return MONO_MARSHAL_CONV_LPSTR_STR;
2483 case MONO_NATIVE_LPTSTR:
2484 return MONO_MARSHAL_CONV_LPTSTR_STR;
2485 case MONO_NATIVE_BSTR:
2486 return MONO_MARSHAL_CONV_BSTR_STR;
2488 return MONO_MARSHAL_CONV_INVALID;
2492 static MonoMarshalConv
2493 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2495 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2500 case MONO_NATIVE_LPWSTR:
2502 * mono_string_builder_to_utf16 does not allocate a
2503 * new buffer, so no need to free it.
2506 return MONO_MARSHAL_CONV_LPWSTR_SB;
2507 case MONO_NATIVE_LPSTR:
2508 return MONO_MARSHAL_CONV_LPSTR_SB;
2510 case MONO_NATIVE_LPTSTR:
2511 return MONO_MARSHAL_CONV_LPTSTR_SB;
2514 return MONO_MARSHAL_CONV_INVALID;
2519 * Return whenever a field of a native structure or an array member needs to
2523 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2525 MonoMarshalNative encoding;
2528 case MONO_TYPE_VALUETYPE:
2529 /* FIXME: Optimize this */
2531 case MONO_TYPE_OBJECT:
2532 case MONO_TYPE_CLASS:
2533 if (t->data.klass == mono_defaults.stringbuilder_class) {
2535 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2539 case MONO_TYPE_STRING:
2540 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2541 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2548 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2551 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2554 mono_marshal_lock ();
2557 g_hash_table_new (hash_func, equal_func);
2558 mono_memory_barrier ();
2561 mono_marshal_unlock ();
2567 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2569 return get_cache (var, hash_func, equal_func);
2573 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2577 mono_marshal_lock ();
2578 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2579 mono_marshal_unlock ();
2586 * Create a MonoMethod from MB, set INFO as wrapper info.
2589 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2590 int max_stack, WrapperInfo *info)
2594 res = mono_mb_create_method (mb, sig, max_stack);
2596 mono_marshal_set_wrapper_info (res, info);
2600 /* Create the method from the builder and place it in the cache */
2602 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2603 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2604 int max_stack, WrapperInfo *info, gboolean *out_found)
2611 mono_marshal_lock ();
2612 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2613 mono_marshal_unlock ();
2616 newm = mono_mb_create_method (mb, sig, max_stack);
2617 mono_marshal_lock ();
2618 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2621 g_hash_table_insert (cache, key, res);
2622 mono_marshal_set_wrapper_info (res, info);
2623 mono_marshal_unlock ();
2627 mono_marshal_unlock ();
2628 mono_free_method (newm);
2636 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2637 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2640 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2644 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2647 int wrapper_type = wrapper->wrapper_type;
2650 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2653 info = mono_marshal_get_wrapper_info (wrapper);
2655 switch (wrapper_type) {
2656 case MONO_WRAPPER_REMOTING_INVOKE:
2657 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2658 case MONO_WRAPPER_XDOMAIN_INVOKE:
2659 m = info->d.remoting.method;
2660 if (wrapper->is_inflated) {
2664 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2665 * contains an uninflated method.
2667 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2668 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2672 case MONO_WRAPPER_SYNCHRONIZED:
2673 m = info->d.synchronized.method;
2674 if (wrapper->is_inflated) {
2677 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2678 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2682 case MONO_WRAPPER_UNBOX:
2683 return info->d.unbox.method;
2684 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2685 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2686 return info->d.managed_to_native.method;
2689 case MONO_WRAPPER_RUNTIME_INVOKE:
2690 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2691 return info->d.runtime_invoke.method;
2694 case MONO_WRAPPER_DELEGATE_INVOKE:
2696 return info->d.delegate_invoke.method;
2705 * mono_marshal_get_wrapper_info:
2707 * Retrieve the WrapperInfo structure associated with WRAPPER.
2710 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2712 g_assert (wrapper->wrapper_type);
2714 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2718 * mono_marshal_set_wrapper_info:
2720 * Set the WrapperInfo structure associated with the wrapper
2721 * method METHOD to INFO.
2724 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2728 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2731 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2736 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2740 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2741 info->subtype = subtype;
2746 * get_wrapper_target_class:
2748 * Return the class where a wrapper method should be placed.
2751 get_wrapper_target_class (MonoImage *image)
2758 * - can't put all wrappers into an mscorlib class, because they reference
2759 * metadata (signature) so they should be put into the same image as the
2760 * method they wrap, so they are unloaded together.
2761 * - putting them into a class with a type initalizer could cause the
2762 * initializer to be executed which can be a problem if the wrappers are
2764 * - putting them into an inflated class can cause problems if the the
2765 * class is deleted because it references an image which is unloaded.
2766 * To avoid these problems, we put the wrappers into the <Module> class of
2769 if (image_is_dynamic (image)) {
2770 klass = ((MonoDynamicImage*)image)->wrappers_type;
2772 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2773 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2781 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2782 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2786 * check_generic_wrapper_cache:
2788 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2789 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2790 * generic method definition.
2793 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2796 MonoMethod *inst, *def;
2797 MonoGenericContext *ctx;
2799 g_assert (orig_method->is_inflated);
2800 ctx = mono_method_get_context (orig_method);
2803 * Look for the instance
2805 res = mono_marshal_find_in_cache (cache, key);
2810 * Look for the definition
2812 def = mono_marshal_find_in_cache (cache, def_key);
2815 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2816 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2818 mono_memory_barrier ();
2819 mono_marshal_lock ();
2820 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2822 g_hash_table_insert (cache, key, inst);
2825 mono_marshal_unlock ();
2832 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2835 MonoMethod *inst, *res;
2838 * We use the same cache for the generic definition and the instances.
2840 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2841 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2842 mono_memory_barrier ();
2843 mono_marshal_lock ();
2844 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2846 g_hash_table_insert (cache, key, inst);
2849 mono_marshal_unlock ();
2854 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2858 MonoMethod *inst, *def;
2861 * Look for the instance
2863 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2868 * Look for the definition
2870 def = mono_marshal_find_in_cache (cache, def_method->klass);
2872 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2873 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2876 mono_memory_barrier ();
2877 mono_marshal_lock ();
2878 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2880 g_hash_table_insert (cache, orig_method->klass, inst);
2883 mono_marshal_unlock ();
2890 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2893 MonoMethod *inst, *res;
2896 * We use the same cache for the generic definition and the instances.
2898 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2899 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2901 mono_memory_barrier ();
2902 mono_marshal_lock ();
2903 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2905 g_hash_table_insert (cache, orig_method->klass, inst);
2908 mono_marshal_unlock ();
2913 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2915 MonoMethodSignature *sig;
2916 MonoMethodBuilder *mb;
2921 MonoGenericContext *ctx = NULL;
2922 MonoMethod *orig_method = NULL;
2924 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2925 !strcmp (method->name, "BeginInvoke"));
2928 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2930 if (method->is_inflated) {
2931 orig_method = method;
2932 ctx = &((MonoMethodInflated*)method)->context;
2933 method = ((MonoMethodInflated*)method)->declaring;
2936 sig = mono_signature_no_pinvoke (method);
2942 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2943 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2947 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2948 (GHashFunc)mono_signature_hash,
2949 (GCompareFunc)mono_metadata_signature_equal);
2950 if ((res = mono_marshal_find_in_cache (cache, sig)))
2954 g_assert (sig->hasthis);
2956 name = mono_signature_to_name (sig, "begin_invoke");
2958 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2960 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2964 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2966 mono_mb_emit_ldarg (mb, 0);
2967 mono_mb_emit_ldloc (mb, params_var);
2968 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2969 mono_mb_emit_byte (mb, CEE_RET);
2974 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2975 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2977 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2984 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2986 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2989 MonoDomain *domain = mono_domain_get ();
2990 MonoAsyncResult *ares;
2991 MonoMethod *method = NULL;
2992 MonoMethodSignature *sig;
2993 MonoMethodMessage *msg;
2994 MonoObject *res, *exc;
2995 MonoArray *out_args;
2998 g_assert (delegate);
3000 if (!delegate->method_info) {
3001 g_assert (delegate->method);
3002 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
3003 if (!mono_error_ok (&error)) {
3004 mono_error_set_pending_exception (&error);
3007 MONO_OBJECT_SETREF (delegate, method_info, rm);
3010 if (!delegate->method_info || !delegate->method_info->method)
3011 g_assert_not_reached ();
3013 klass = delegate->object.vtable->klass;
3015 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3016 g_assert (method != NULL);
3018 sig = mono_signature_no_pinvoke (method);
3020 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
3021 if (mono_error_set_pending_exception (&error))
3024 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
3026 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."));
3030 if (ares->async_delegate != (MonoObject*)delegate) {
3031 mono_set_pending_exception (mono_get_exception_invalid_operation (
3032 "The IAsyncResult object provided does not match this delegate."));
3036 #ifndef DISABLE_REMOTING
3037 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3038 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3039 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3040 if (!mono_error_ok (&error)) {
3041 mono_error_set_pending_exception (&error);
3044 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3045 if (mono_error_set_pending_exception (&error))
3047 msg->call_type = CallType_EndInvoke;
3048 MONO_OBJECT_SETREF (msg, async_result, ares);
3049 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3050 if (!mono_error_ok (&error)) {
3051 mono_error_set_pending_exception (&error);
3057 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc, &error);
3058 if (mono_error_set_pending_exception (&error))
3063 if (((MonoException*)exc)->stack_trace) {
3064 MonoError inner_error;
3065 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3066 if (is_ok (&inner_error)) {
3068 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3070 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3073 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3075 mono_set_pending_exception ((MonoException*)exc);
3078 mono_method_return_message_restore (method, params, out_args, &error);
3079 mono_error_set_pending_exception (&error);
3086 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3088 MonoType *t = mono_type_get_underlying_type (return_type);
3090 if (return_type->byref)
3091 return_type = &mono_defaults.int_class->byval_arg;
3094 case MONO_TYPE_VOID:
3095 g_assert_not_reached ();
3098 case MONO_TYPE_STRING:
3099 case MONO_TYPE_CLASS:
3100 case MONO_TYPE_OBJECT:
3101 case MONO_TYPE_ARRAY:
3102 case MONO_TYPE_SZARRAY:
3106 case MONO_TYPE_BOOLEAN:
3109 case MONO_TYPE_CHAR:
3119 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3120 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3122 case MONO_TYPE_GENERICINST:
3123 if (!mono_type_generic_inst_is_valuetype (t))
3126 case MONO_TYPE_VALUETYPE: {
3127 MonoClass *klass = mono_class_from_mono_type (return_type);
3128 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3129 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3133 case MONO_TYPE_MVAR: {
3134 MonoClass *klass = mono_class_from_mono_type (return_type);
3135 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3139 g_warning ("type 0x%x not handled", return_type->type);
3140 g_assert_not_reached ();
3143 mono_mb_emit_byte (mb, CEE_RET);
3146 #endif /* DISABLE_JIT */
3149 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3151 MonoMethodSignature *sig;
3152 MonoMethodBuilder *mb;
3157 MonoGenericContext *ctx = NULL;
3158 MonoMethod *orig_method = NULL;
3160 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3161 !strcmp (method->name, "EndInvoke"));
3164 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3166 if (method->is_inflated) {
3167 orig_method = method;
3168 ctx = &((MonoMethodInflated*)method)->context;
3169 method = ((MonoMethodInflated*)method)->declaring;
3172 sig = mono_signature_no_pinvoke (method);
3178 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3179 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3183 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3184 (GHashFunc)mono_signature_hash,
3185 (GCompareFunc)mono_metadata_signature_equal);
3186 if ((res = mono_marshal_find_in_cache (cache, sig)))
3190 g_assert (sig->hasthis);
3192 name = mono_signature_to_name (sig, "end_invoke");
3194 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3196 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3200 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3202 mono_mb_emit_ldarg (mb, 0);
3203 mono_mb_emit_ldloc (mb, params_var);
3204 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3206 if (sig->ret->type == MONO_TYPE_VOID) {
3207 mono_mb_emit_byte (mb, CEE_POP);
3208 mono_mb_emit_byte (mb, CEE_RET);
3210 mono_mb_emit_restore_result (mb, sig->ret);
3215 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3216 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3218 res = mono_mb_create_and_cache (cache, sig,
3219 mb, sig, sig->param_count + 16);
3228 MonoMethodSignature *sig;
3230 } SignaturePointerPair;
3233 signature_pointer_pair_hash (gconstpointer data)
3235 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3237 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3241 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3243 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3244 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3248 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3250 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3252 return pair->pointer == user_data;
3256 free_signature_pointer_pair (SignaturePointerPair *pair)
3262 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3264 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3266 MonoMethodBuilder *mb;
3269 gpointer cache_key = NULL;
3270 SignaturePointerPair key;
3271 SignaturePointerPair *new_key;
3272 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3273 int pos0, pos1, pos2;
3275 MonoClass *target_class = NULL;
3276 gboolean closed_over_null = FALSE;
3277 MonoGenericContext *ctx = NULL;
3278 MonoGenericContainer *container = NULL;
3279 MonoMethod *orig_method = method;
3281 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3285 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3286 !strcmp (method->name, "Invoke"));
3288 invoke_sig = sig = mono_signature_no_pinvoke (method);
3291 * If the delegate target is null, and the target method is not static, a virtual
3292 * call is made to that method with the first delegate argument as this. This is
3293 * a non-documented .NET feature.
3296 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3297 if (target_method->is_inflated) {
3299 MonoType *target_type;
3301 g_assert (method->signature->hasthis);
3302 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3303 mono_method_get_context (method), &error);
3304 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3305 target_class = mono_class_from_mono_type (target_type);
3307 target_class = target_method->klass;
3310 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3313 if (static_method_with_first_arg_bound) {
3314 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3315 g_assert (!callvirt);
3316 invoke_sig = mono_method_signature (target_method);
3320 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3322 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3323 ctx = &((MonoMethodInflated*)method)->context;
3324 method = ((MonoMethodInflated*)method)->declaring;
3326 container = mono_method_get_generic_container (method);
3328 container = method->klass->generic_container;
3329 g_assert (container);
3331 invoke_sig = sig = mono_signature_no_pinvoke (method);
3338 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3339 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3342 cache_key = method->klass;
3343 } else if (static_method_with_first_arg_bound) {
3344 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3345 (GHashFunc)mono_signature_hash,
3346 (GCompareFunc)mono_metadata_signature_equal);
3348 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3350 res = mono_marshal_find_in_cache (cache, invoke_sig);
3353 cache_key = invoke_sig;
3354 } else if (callvirt) {
3355 GHashTable **cache_ptr;
3357 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3359 /* We need to cache the signature+method pair */
3360 mono_marshal_lock ();
3362 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3364 key.sig = invoke_sig;
3365 key.pointer = target_method;
3366 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3367 mono_marshal_unlock ();
3371 // Inflated methods should not be in this cache because it's not stored on the imageset.
3372 g_assert (!method->is_inflated);
3373 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3374 (GHashFunc)mono_signature_hash,
3375 (GCompareFunc)mono_metadata_signature_equal);
3376 res = mono_marshal_find_in_cache (cache, sig);
3382 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3383 static_sig->hasthis = 0;
3384 if (!static_method_with_first_arg_bound)
3385 invoke_sig = static_sig;
3387 if (static_method_with_first_arg_bound)
3388 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3389 else if (closed_over_null)
3390 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3392 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3394 name = mono_signature_to_name (invoke_sig, "invoke");
3396 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3398 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3402 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3404 /* allocate local 0 (object) */
3405 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3406 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3407 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3408 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3409 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3412 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3414 g_assert (sig->hasthis);
3417 * {type: sig->ret} res;
3418 * if (delegates == null) {
3419 * return this.<target> ( args .. );
3421 * int i = 0, len = this.delegates.Length;
3423 * res = this.delegates [i].Invoke ( args .. );
3424 * } while (++i < len);
3429 /* this wrapper can be used in unmanaged-managed transitions */
3430 emit_thread_interrupt_checkpoint (mb);
3432 /* delegates = this.delegates */
3433 mono_mb_emit_ldarg (mb, 0);
3434 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3435 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3436 mono_mb_emit_stloc (mb, local_delegates);
3438 /* if (delegates == null) */
3439 mono_mb_emit_ldloc (mb, local_delegates);
3440 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3442 /* return target.<target_method|method_ptr> ( args .. ); */
3444 /* target = d.target; */
3445 mono_mb_emit_ldarg (mb, 0);
3446 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3447 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3448 mono_mb_emit_stloc (mb, local_target);
3450 /*static methods with bound first arg can have null target and still be bound*/
3451 if (!static_method_with_first_arg_bound) {
3452 /* if target != null */
3453 mono_mb_emit_ldloc (mb, local_target);
3454 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3456 /* then call this->method_ptr nonstatic */
3459 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3461 mono_mb_emit_ldloc (mb, local_target);
3462 for (i = 0; i < sig->param_count; ++i)
3463 mono_mb_emit_ldarg (mb, i + 1);
3464 mono_mb_emit_ldarg (mb, 0);
3465 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3466 mono_mb_emit_byte (mb, CEE_LDIND_I);
3467 mono_mb_emit_ldarg (mb, 0);
3468 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3469 mono_mb_emit_byte (mb, CEE_LDIND_I);
3470 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3471 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3472 mono_mb_emit_byte (mb, CEE_RET);
3475 /* else [target == null] call this->method_ptr static */
3476 mono_mb_patch_branch (mb, pos0);
3480 if (!closed_over_null) {
3481 if (target_class->valuetype) {
3482 mono_mb_emit_ldarg (mb, 1);
3483 for (i = 1; i < sig->param_count; ++i)
3484 mono_mb_emit_ldarg (mb, i + 1);
3485 mono_mb_emit_op (mb, CEE_CALL, target_method);
3487 mono_mb_emit_ldarg (mb, 1);
3488 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3489 for (i = 1; i < sig->param_count; ++i)
3490 mono_mb_emit_ldarg (mb, i + 1);
3491 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3494 mono_mb_emit_byte (mb, CEE_LDNULL);
3495 for (i = 0; i < sig->param_count; ++i)
3496 mono_mb_emit_ldarg (mb, i + 1);
3497 mono_mb_emit_op (mb, CEE_CALL, target_method);
3500 if (static_method_with_first_arg_bound) {
3501 mono_mb_emit_ldloc (mb, local_target);
3502 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3503 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3505 for (i = 0; i < sig->param_count; ++i)
3506 mono_mb_emit_ldarg (mb, i + 1);
3507 mono_mb_emit_ldarg (mb, 0);
3508 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3509 mono_mb_emit_byte (mb, CEE_LDIND_I);
3510 mono_mb_emit_ldarg (mb, 0);
3511 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3512 mono_mb_emit_byte (mb, CEE_LDIND_I);
3513 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3514 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3517 mono_mb_emit_byte (mb, CEE_RET);
3519 /* else [delegates != null] */
3520 mono_mb_patch_branch (mb, pos2);
3522 /* len = delegates.Length; */
3523 mono_mb_emit_ldloc (mb, local_delegates);
3524 mono_mb_emit_byte (mb, CEE_LDLEN);
3525 mono_mb_emit_byte (mb, CEE_CONV_I4);
3526 mono_mb_emit_stloc (mb, local_len);
3529 mono_mb_emit_icon (mb, 0);
3530 mono_mb_emit_stloc (mb, local_i);
3532 pos1 = mono_mb_get_label (mb);
3534 /* d = delegates [i]; */
3535 mono_mb_emit_ldloc (mb, local_delegates);
3536 mono_mb_emit_ldloc (mb, local_i);
3537 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3538 mono_mb_emit_stloc (mb, local_d);
3540 /* res = d.Invoke ( args .. ); */
3541 mono_mb_emit_ldloc (mb, local_d);
3542 for (i = 0; i < sig->param_count; i++)
3543 mono_mb_emit_ldarg (mb, i + 1);
3545 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3548 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3549 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3552 mono_mb_emit_stloc (mb, local_res);
3555 mono_mb_emit_add_to_local (mb, local_i, 1);
3558 mono_mb_emit_ldloc (mb, local_i);
3559 mono_mb_emit_ldloc (mb, local_len);
3560 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3564 mono_mb_emit_ldloc (mb, local_res);
3565 mono_mb_emit_byte (mb, CEE_RET);
3567 mb->skip_visibility = 1;
3568 #endif /* DISABLE_JIT */
3570 info = mono_wrapper_info_create (mb, subtype);
3571 info->d.delegate_invoke.method = orig_method;
3576 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3577 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3578 } else if (callvirt) {
3579 new_key = g_new0 (SignaturePointerPair, 1);
3582 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3586 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3590 /* mono_method_print_code (res); */
3596 * the returned method invokes all methods in a multicast delegate.
3599 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3601 gboolean callvirt = FALSE;
3602 gboolean static_method_with_first_arg_bound = FALSE;
3603 MonoMethod *target_method = NULL;
3604 MonoMethodSignature *sig;
3606 sig = mono_signature_no_pinvoke (method);
3608 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3610 target_method = del->method;
3613 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3614 static_method_with_first_arg_bound = TRUE;
3615 target_method = del->method;
3618 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3622 MonoMethodSignature *ctor_sig;
3623 MonoMethodSignature *sig;
3626 /* protected by the marshal lock, contains CtorSigPair pointers */
3627 static GSList *strsig_list = NULL;
3629 static MonoMethodSignature *
3630 lookup_string_ctor_signature (MonoMethodSignature *sig)
3632 MonoMethodSignature *callsig;
3636 mono_marshal_lock ();
3638 for (item = strsig_list; item; item = item->next) {
3639 cs = (CtorSigPair *)item->data;
3640 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3641 * because it is lock-free.
3643 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3648 mono_marshal_unlock ();
3652 static MonoMethodSignature *
3653 add_string_ctor_signature (MonoMethod *method)
3655 MonoMethodSignature *callsig;
3658 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3659 callsig->ret = &mono_defaults.string_class->byval_arg;
3660 cs = g_new (CtorSigPair, 1);
3662 cs->ctor_sig = mono_method_signature (method);
3664 mono_marshal_lock ();
3665 strsig_list = g_slist_prepend (strsig_list, cs);
3666 mono_marshal_unlock ();
3671 * mono_marshal_get_string_ctor_signature:
3673 * Return the modified signature used by string ctors (they return the newly created
3676 MonoMethodSignature*
3677 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3679 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3681 sig = add_string_ctor_signature (method);
3687 get_runtime_invoke_type (MonoType *t, gboolean ret)
3690 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3692 /* Can't share this with 'I' as that needs another indirection */
3693 return &mono_defaults.int_class->this_arg;
3696 if (MONO_TYPE_IS_REFERENCE (t))
3697 return &mono_defaults.object_class->byval_arg;
3700 /* The result needs to be boxed */
3705 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3708 return &mono_defaults.sbyte_class->byval_arg;
3710 return &mono_defaults.int16_class->byval_arg;
3712 return &mono_defaults.int32_class->byval_arg;
3715 return &mono_defaults.int64_class->byval_arg;
3716 case MONO_TYPE_BOOLEAN:
3717 return &mono_defaults.byte_class->byval_arg;
3718 case MONO_TYPE_CHAR:
3719 return &mono_defaults.uint16_class->byval_arg;
3721 return &mono_defaults.int_class->byval_arg;
3722 case MONO_TYPE_VALUETYPE:
3723 if (t->data.klass->enumtype) {
3724 t = mono_class_enum_basetype (t->data.klass);
3734 * mono_marshal_get_runtime_invoke_sig:
3736 * Return a common signature used for sharing runtime invoke wrappers.
3738 static MonoMethodSignature*
3739 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3741 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3744 res->generic_param_count = 0;
3745 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3746 for (i = 0; i < res->param_count; ++i)
3747 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3753 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3755 /* Can't share wrappers which return a vtype since it needs to be boxed */
3756 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))
3759 return mono_metadata_signature_equal (sig1, sig2);
3767 * Emit the call to the wrapper method from a runtime invoke wrapper.
3770 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3771 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3773 gboolean virtual_, gboolean need_direct_wrapper)
3775 static MonoString *string_dummy = NULL;
3777 int *tmp_nullable_locals;
3778 gboolean void_ret = FALSE;
3779 gboolean string_ctor = method && method->string_ctor;
3781 /* to make it work with our special string constructors */
3782 if (!string_dummy) {
3783 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3784 string_dummy = mono_string_new_wrapper ("dummy");
3788 g_assert (sig->hasthis);
3789 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3794 if (mono_gc_is_moving ()) {
3795 mono_mb_emit_ptr (mb, &string_dummy);
3796 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3798 mono_mb_emit_ptr (mb, string_dummy);
3801 mono_mb_emit_ldarg (mb, 0);
3805 tmp_nullable_locals = g_new0 (int, sig->param_count);
3807 for (i = 0; i < sig->param_count; i++) {
3808 MonoType *t = sig->params [i];
3811 mono_mb_emit_ldarg (mb, 1);
3813 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3814 mono_mb_emit_byte (mb, CEE_ADD);
3818 mono_mb_emit_byte (mb, CEE_LDIND_I);
3819 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3820 * So to make this work we unbox it to a local variablee and push a reference to that.
3822 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3823 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3825 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3826 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3827 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3832 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3833 type = sig->params [i]->type;
3837 case MONO_TYPE_BOOLEAN:
3841 case MONO_TYPE_CHAR:
3850 mono_mb_emit_byte (mb, CEE_LDIND_I);
3851 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3853 case MONO_TYPE_STRING:
3854 case MONO_TYPE_CLASS:
3855 case MONO_TYPE_ARRAY:
3857 case MONO_TYPE_SZARRAY:
3858 case MONO_TYPE_OBJECT:
3859 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3861 case MONO_TYPE_GENERICINST:
3862 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3863 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3868 case MONO_TYPE_VALUETYPE:
3869 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3870 type = mono_class_enum_basetype (t->data.klass)->type;
3873 mono_mb_emit_byte (mb, CEE_LDIND_I);
3874 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3875 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3876 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3877 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3879 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3883 g_assert_not_reached ();
3888 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3889 } else if (need_direct_wrapper) {
3890 mono_mb_emit_op (mb, CEE_CALL, method);
3892 mono_mb_emit_ldarg (mb, 3);
3893 mono_mb_emit_calli (mb, callsig);
3896 if (sig->ret->byref) {
3898 g_assert_not_reached ();
3901 switch (sig->ret->type) {
3902 case MONO_TYPE_VOID:
3906 case MONO_TYPE_BOOLEAN:
3907 case MONO_TYPE_CHAR:
3920 case MONO_TYPE_VALUETYPE:
3921 case MONO_TYPE_TYPEDBYREF:
3922 case MONO_TYPE_GENERICINST:
3923 /* box value types */
3924 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3926 case MONO_TYPE_STRING:
3927 case MONO_TYPE_CLASS:
3928 case MONO_TYPE_ARRAY:
3929 case MONO_TYPE_SZARRAY:
3930 case MONO_TYPE_OBJECT:
3934 /* The result is an IntPtr */
3935 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3938 g_assert_not_reached ();
3942 mono_mb_emit_stloc (mb, loc_res);
3944 /* Convert back nullable-byref arguments */
3945 for (i = 0; i < sig->param_count; i++) {
3946 MonoType *t = sig->params [i];
3949 * Box the result and put it back into the array, the caller will have
3950 * to obtain it from there.
3952 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3953 mono_mb_emit_ldarg (mb, 1);
3954 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3955 mono_mb_emit_byte (mb, CEE_ADD);
3957 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3958 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3960 mono_mb_emit_byte (mb, CEE_STIND_REF);
3964 g_free (tmp_nullable_locals);
3968 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3969 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3970 gboolean virtual_, gboolean need_direct_wrapper)
3973 MonoExceptionClause *clause;
3974 int loc_res, loc_exc;
3976 /* The wrapper looks like this:
3982 * } catch (Exception e) {
3990 /* allocate local 0 (object) tmp */
3991 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3992 /* allocate local 1 (object) exc */
3993 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3995 /* *exc is assumed to be initialized to NULL by the caller */
3997 mono_mb_emit_byte (mb, CEE_LDARG_2);
3998 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4003 labels [1] = mono_mb_get_label (mb);
4004 emit_thread_force_interrupt_checkpoint (mb);
4005 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4007 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4009 /* Add a try clause around the call */
4010 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
4011 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4012 clause->data.catch_class = mono_defaults.exception_class;
4013 clause->try_offset = labels [1];
4014 clause->try_len = mono_mb_get_label (mb) - labels [1];
4016 clause->handler_offset = mono_mb_get_label (mb);
4019 mono_mb_emit_stloc (mb, loc_exc);
4020 mono_mb_emit_byte (mb, CEE_LDARG_2);
4021 mono_mb_emit_ldloc (mb, loc_exc);
4022 mono_mb_emit_byte (mb, CEE_STIND_REF);
4024 mono_mb_emit_branch (mb, CEE_LEAVE);
4026 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4028 mono_mb_set_clauses (mb, 1, clause);
4030 mono_mb_patch_branch (mb, labels [2]);
4031 mono_mb_emit_ldloc (mb, loc_res);
4032 mono_mb_emit_byte (mb, CEE_RET);
4037 mono_mb_patch_branch (mb, labels [0]);
4038 emit_thread_force_interrupt_checkpoint (mb);
4039 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4041 mono_mb_emit_ldloc (mb, 0);
4042 mono_mb_emit_byte (mb, CEE_RET);
4047 * generates IL code for the runtime invoke function
4048 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
4050 * we also catch exceptions if exc != null
4051 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4052 * it means that the compiled code for METHOD does not have to be looked up
4053 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4054 * its METHOD argument.
4057 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4059 MonoMethodSignature *sig, *csig, *callsig;
4060 MonoMethodBuilder *mb;
4061 GHashTable *cache = NULL;
4062 MonoClass *target_klass;
4063 MonoMethod *res = NULL;
4064 static MonoMethodSignature *cctor_signature = NULL;
4065 static MonoMethodSignature *finalize_signature = NULL;
4067 const char *param_names [16];
4068 gboolean need_direct_wrapper = FALSE;
4073 if (!cctor_signature) {
4074 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4075 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4077 if (!finalize_signature) {
4078 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4079 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4080 finalize_signature->hasthis = 1;
4084 need_direct_wrapper = TRUE;
4087 * Use a separate cache indexed by methods to speed things up and to avoid the
4088 * boundless mempool growth caused by the signature_dup stuff below.
4091 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4093 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4095 res = mono_marshal_find_in_cache (cache, method);
4099 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4100 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4102 * Array Get/Set/Address methods. The JIT implements them using inline code
4103 * so we need to create an invoke wrapper which calls the method directly.
4105 need_direct_wrapper = TRUE;
4108 if (method->string_ctor) {
4109 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4111 callsig = add_string_ctor_signature (method);
4112 /* Can't share this as we push a string as this */
4113 need_direct_wrapper = TRUE;
4115 if (method_is_dynamic (method))
4116 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4118 callsig = mono_method_signature (method);
4121 sig = mono_method_signature (method);
4123 target_klass = get_wrapper_target_class (method->klass->image);
4125 /* Try to share wrappers for non-corlib methods with simple signatures */
4126 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4127 callsig = cctor_signature;
4128 target_klass = mono_defaults.object_class;
4129 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4130 callsig = finalize_signature;
4131 target_klass = mono_defaults.object_class;
4134 if (need_direct_wrapper) {
4135 /* Already searched at the start */
4137 MonoMethodSignature *tmp_sig;
4139 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4140 GHashTable **cache_table = NULL;
4142 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4143 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4145 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4147 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4148 (GCompareFunc)runtime_invoke_signature_equal);
4150 /* from mono_marshal_find_in_cache */
4151 mono_marshal_lock ();
4152 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4153 mono_marshal_unlock ();
4160 /* Make a copy of the signature from the image mempool */
4162 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4166 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4168 csig->ret = &mono_defaults.object_class->byval_arg;
4169 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4170 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4172 csig->params [0] = &mono_defaults.object_class->byval_arg;
4173 csig->params [1] = &mono_defaults.int_class->byval_arg;
4174 csig->params [2] = &mono_defaults.int_class->byval_arg;
4175 csig->params [3] = &mono_defaults.int_class->byval_arg;
4178 /* This is called from runtime code so it has to be cdecl */
4179 csig->call_convention = MONO_CALL_C;
4182 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4183 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4187 param_names [0] = "this";
4188 param_names [1] = "params";
4189 param_names [2] = "exc";
4190 param_names [3] = "method";
4191 mono_mb_set_param_names (mb, param_names);
4193 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4196 if (need_direct_wrapper) {
4198 mb->skip_visibility = 1;
4200 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4201 info->d.runtime_invoke.method = method;
4202 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4204 /* taken from mono_mb_create_and_cache */
4205 mono_marshal_lock ();
4206 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4207 mono_marshal_unlock ();
4209 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4210 info->d.runtime_invoke.sig = callsig;
4212 /* Somebody may have created it before us */
4215 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4217 mono_marshal_lock ();
4218 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4220 GHashTable *direct_cache;
4222 g_hash_table_insert (cache, callsig, res);
4223 /* Can't insert it into wrapper_hash since the key is a signature */
4224 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4226 g_hash_table_insert (direct_cache, method, res);
4228 mono_free_method (newm);
4230 mono_marshal_unlock ();
4233 /* end mono_mb_create_and_cache */
4242 * mono_marshal_get_runtime_invoke_dynamic:
4244 * Return a method which can be used to invoke managed methods from native code
4246 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4247 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4248 * ARGS should point to an architecture specific structure containing
4249 * the arguments and space for the return value.
4250 * The other arguments are the same as for runtime_invoke (), except that
4251 * ARGS should contain the this argument too.
4252 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4253 * is only one copy of it, which is useful in full-aot.
4256 mono_marshal_get_runtime_invoke_dynamic (void)
4258 static MonoMethod *method;
4259 MonoMethodSignature *csig;
4260 MonoExceptionClause *clause;
4261 MonoMethodBuilder *mb;
4269 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4271 csig->ret = &mono_defaults.void_class->byval_arg;
4272 csig->params [0] = &mono_defaults.int_class->byval_arg;
4273 csig->params [1] = &mono_defaults.int_class->byval_arg;
4274 csig->params [2] = &mono_defaults.int_class->byval_arg;
4275 csig->params [3] = &mono_defaults.int_class->byval_arg;
4277 name = g_strdup ("runtime_invoke_dynamic");
4278 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4282 /* allocate local 0 (object) tmp */
4283 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4284 /* allocate local 1 (object) exc */
4285 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4287 /* cond set *exc to null */
4288 mono_mb_emit_byte (mb, CEE_LDARG_1);
4289 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4290 mono_mb_emit_byte (mb, 3);
4291 mono_mb_emit_byte (mb, CEE_LDARG_1);
4292 mono_mb_emit_byte (mb, CEE_LDNULL);
4293 mono_mb_emit_byte (mb, CEE_STIND_REF);
4295 emit_thread_force_interrupt_checkpoint (mb);
4297 mono_mb_emit_byte (mb, CEE_LDARG_0);
4298 mono_mb_emit_byte (mb, CEE_LDARG_2);
4299 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4300 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4302 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4304 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4305 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4306 clause->try_len = mono_mb_get_label (mb);
4309 clause->data.filter_offset = mono_mb_get_label (mb);
4311 mono_mb_emit_byte (mb, CEE_POP);
4312 mono_mb_emit_byte (mb, CEE_LDARG_1);
4313 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4314 mono_mb_emit_byte (mb, CEE_PREFIX1);
4315 mono_mb_emit_byte (mb, CEE_CGT_UN);
4316 mono_mb_emit_byte (mb, CEE_PREFIX1);
4317 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4319 clause->handler_offset = mono_mb_get_label (mb);
4322 /* store exception */
4323 mono_mb_emit_stloc (mb, 1);
4325 mono_mb_emit_byte (mb, CEE_LDARG_1);
4326 mono_mb_emit_ldloc (mb, 1);
4327 mono_mb_emit_byte (mb, CEE_STIND_REF);
4329 mono_mb_emit_byte (mb, CEE_LDNULL);
4330 mono_mb_emit_stloc (mb, 0);
4332 /* Check for the abort exception */
4333 mono_mb_emit_ldloc (mb, 1);
4334 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4335 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4337 /* Delay the abort exception */
4338 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4340 mono_mb_patch_short_branch (mb, posna);
4341 mono_mb_emit_branch (mb, CEE_LEAVE);
4343 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4345 mono_mb_set_clauses (mb, 1, clause);
4348 mono_mb_patch_branch (mb, pos);
4349 //mono_mb_emit_ldloc (mb, 0);
4350 mono_mb_emit_byte (mb, CEE_RET);
4351 #endif /* DISABLE_JIT */
4353 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4355 mono_marshal_lock ();
4356 /* double-checked locking */
4358 method = mono_mb_create (mb, csig, 16, info);
4360 mono_marshal_unlock ();
4368 * mono_marshal_get_runtime_invoke_for_sig:
4370 * Return a runtime invoke wrapper for a given signature.
4373 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4375 MonoMethodSignature *csig, *callsig;
4376 MonoMethodBuilder *mb;
4378 GHashTable *cache = NULL;
4379 GHashTable **cache_table = NULL;
4380 MonoMethod *res = NULL;
4382 const char *param_names [16];
4385 /* A simplified version of mono_marshal_get_runtime_invoke */
4387 image = mono_defaults.corlib;
4389 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4391 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4393 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4394 (GCompareFunc)runtime_invoke_signature_equal);
4396 /* from mono_marshal_find_in_cache */
4397 mono_marshal_lock ();
4398 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4399 mono_marshal_unlock ();
4406 /* Make a copy of the signature from the image mempool */
4407 callsig = mono_metadata_signature_dup_full (image, callsig);
4409 csig = mono_metadata_signature_alloc (image, 4);
4410 csig->ret = &mono_defaults.object_class->byval_arg;
4411 csig->params [0] = &mono_defaults.object_class->byval_arg;
4412 csig->params [1] = &mono_defaults.int_class->byval_arg;
4413 csig->params [2] = &mono_defaults.int_class->byval_arg;
4414 csig->params [3] = &mono_defaults.int_class->byval_arg;
4417 /* This is called from runtime code so it has to be cdecl */
4418 csig->call_convention = MONO_CALL_C;
4421 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4422 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4426 param_names [0] = "this";
4427 param_names [1] = "params";
4428 param_names [2] = "exc";
4429 param_names [3] = "method";
4430 mono_mb_set_param_names (mb, param_names);
4432 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4435 /* taken from mono_mb_create_and_cache */
4436 mono_marshal_lock ();
4437 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4438 mono_marshal_unlock ();
4440 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4441 info->d.runtime_invoke.sig = callsig;
4443 /* Somebody may have created it before us */
4446 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4448 mono_marshal_lock ();
4449 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4452 g_hash_table_insert (cache, callsig, res);
4454 mono_free_method (newm);
4456 mono_marshal_unlock ();
4459 /* end mono_mb_create_and_cache */
4468 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4470 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4471 klass->name_space, klass->name);
4473 mono_mb_emit_exception_marshal_directive (mb, msg);
4478 * generates IL code for the icall wrapper (the generated method
4479 * calls the unmanaged code in func)
4482 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4484 MonoMethodSignature *csig, *csig2;
4485 MonoMethodBuilder *mb;
4490 GHashTable *cache = get_cache (&mono_defaults.object_class->image->icall_wrapper_cache, mono_aligned_addr_hash, NULL);
4491 if ((res = mono_marshal_find_in_cache (cache, (gpointer) func)))
4494 g_assert (sig->pinvoke);
4496 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4498 mb->method->save_lmf = 1;
4500 /* Add an explicit this argument */
4502 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4504 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4508 mono_mb_emit_byte (mb, CEE_LDARG_0);
4510 for (i = 0; i < sig->param_count; i++)
4511 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4513 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4514 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4515 mono_mb_emit_calli (mb, csig2);
4516 if (check_exceptions)
4517 emit_thread_interrupt_checkpoint (mb);
4518 mono_mb_emit_byte (mb, CEE_RET);
4521 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4523 if (csig->call_convention == MONO_CALL_VARARG)
4524 csig->call_convention = 0;
4526 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4527 info->d.icall.func = (gpointer)func;
4528 res = mono_mb_create_and_cache_full (cache, (gpointer) func, mb, csig, csig->param_count + 16, info, NULL);
4535 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4536 MonoMarshalSpec *spec,
4537 int conv_arg, MonoType **conv_arg_type,
4538 MarshalAction action)
4541 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4542 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4548 static MonoClass *ICustomMarshaler = NULL;
4549 static MonoMethod *cleanup_native, *cleanup_managed;
4550 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4551 MonoMethod *get_instance = NULL;
4552 MonoMethodBuilder *mb = m->mb;
4553 char *exception_msg = NULL;
4557 if (!ICustomMarshaler) {
4558 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4560 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4561 goto handle_exception;
4564 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4565 g_assert (cleanup_native);
4566 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4567 g_assert (cleanup_managed);
4568 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4569 g_assert (marshal_managed_to_native);
4570 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4571 g_assert (marshal_native_to_managed);
4573 mono_memory_barrier ();
4574 ICustomMarshaler = klass;
4577 if (spec->data.custom_data.image)
4578 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4580 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4581 g_assert (mtype != NULL);
4582 mono_error_assert_ok (&error);
4583 mklass = mono_class_from_mono_type (mtype);
4584 g_assert (mklass != NULL);
4586 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4587 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4589 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4591 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4592 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4593 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4594 (get_sig->params [0]->type != MONO_TYPE_STRING))
4595 get_instance = NULL;
4599 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);
4602 /* Throw exception and emit compensation code if neccesary */
4603 if (exception_msg) {
4605 case MARSHAL_ACTION_CONV_IN:
4606 case MARSHAL_ACTION_CONV_RESULT:
4607 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4608 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4609 mono_mb_emit_byte (mb, CEE_POP);
4611 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4612 g_free (exception_msg);
4615 case MARSHAL_ACTION_PUSH:
4616 mono_mb_emit_byte (mb, CEE_LDNULL);
4624 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4625 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4628 case MARSHAL_ACTION_CONV_IN:
4630 case MONO_TYPE_CLASS:
4631 case MONO_TYPE_OBJECT:
4632 case MONO_TYPE_STRING:
4633 case MONO_TYPE_ARRAY:
4634 case MONO_TYPE_SZARRAY:
4635 case MONO_TYPE_VALUETYPE:
4639 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4640 g_assert_not_reached ();
4644 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4646 mono_mb_emit_byte (mb, CEE_LDNULL);
4647 mono_mb_emit_stloc (mb, conv_arg);
4649 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4652 /* Minic MS.NET behavior */
4653 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4656 /* Check for null */
4657 mono_mb_emit_ldarg (mb, argnum);
4659 mono_mb_emit_byte (mb, CEE_LDIND_I);
4660 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4662 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4664 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4666 mono_mb_emit_ldarg (mb, argnum);
4668 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4670 if (t->type == MONO_TYPE_VALUETYPE) {
4672 * Since we can't determine the type of the argument, we
4673 * will assume the unmanaged function takes a pointer.
4675 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4677 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4680 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4681 mono_mb_emit_stloc (mb, conv_arg);
4683 mono_mb_patch_branch (mb, pos2);
4686 case MARSHAL_ACTION_CONV_OUT:
4687 /* Check for null */
4688 mono_mb_emit_ldloc (mb, conv_arg);
4689 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4692 mono_mb_emit_ldarg (mb, argnum);
4694 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4696 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4698 mono_mb_emit_ldloc (mb, conv_arg);
4699 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4700 mono_mb_emit_byte (mb, CEE_STIND_REF);
4701 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4702 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4704 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4706 mono_mb_emit_ldloc (mb, conv_arg);
4707 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4709 /* We have nowhere to store the result */
4710 mono_mb_emit_byte (mb, CEE_POP);
4713 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4715 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4717 mono_mb_emit_ldloc (mb, conv_arg);
4719 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4721 mono_mb_patch_branch (mb, pos2);
4724 case MARSHAL_ACTION_PUSH:
4726 mono_mb_emit_ldloc_addr (mb, conv_arg);
4728 mono_mb_emit_ldloc (mb, conv_arg);
4731 case MARSHAL_ACTION_CONV_RESULT:
4732 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4734 mono_mb_emit_stloc (mb, 3);
4736 mono_mb_emit_ldloc (mb, 3);
4737 mono_mb_emit_stloc (mb, loc1);
4739 /* Check for null */
4740 mono_mb_emit_ldloc (mb, 3);
4741 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4743 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4745 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4746 mono_mb_emit_byte (mb, CEE_DUP);
4748 mono_mb_emit_ldloc (mb, 3);
4749 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4750 mono_mb_emit_stloc (mb, 3);
4752 mono_mb_emit_ldloc (mb, loc1);
4753 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4755 mono_mb_patch_branch (mb, pos2);
4758 case MARSHAL_ACTION_MANAGED_CONV_IN:
4759 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4761 mono_mb_emit_byte (mb, CEE_LDNULL);
4762 mono_mb_emit_stloc (mb, conv_arg);
4764 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4767 /* Check for null */
4768 mono_mb_emit_ldarg (mb, argnum);
4770 mono_mb_emit_byte (mb, CEE_LDIND_I);
4771 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4773 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4774 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4776 mono_mb_emit_ldarg (mb, argnum);
4778 mono_mb_emit_byte (mb, CEE_LDIND_I);
4780 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4781 mono_mb_emit_stloc (mb, conv_arg);
4783 mono_mb_patch_branch (mb, pos2);
4786 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4787 g_assert (!t->byref);
4789 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4791 mono_mb_emit_stloc (mb, 3);
4793 mono_mb_emit_ldloc (mb, 3);
4794 mono_mb_emit_stloc (mb, loc1);
4796 /* Check for null */
4797 mono_mb_emit_ldloc (mb, 3);
4798 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4800 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4801 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4802 mono_mb_emit_byte (mb, CEE_DUP);
4804 mono_mb_emit_ldloc (mb, 3);
4805 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4806 mono_mb_emit_stloc (mb, 3);
4808 mono_mb_emit_ldloc (mb, loc1);
4809 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4811 mono_mb_patch_branch (mb, pos2);
4814 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4816 /* Check for null */
4817 mono_mb_emit_ldloc (mb, conv_arg);
4818 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4821 mono_mb_emit_ldarg (mb, argnum);
4823 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4825 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4827 mono_mb_emit_ldloc (mb, conv_arg);
4828 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4829 mono_mb_emit_byte (mb, CEE_STIND_I);
4832 /* Call CleanUpManagedData */
4833 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4835 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4837 mono_mb_emit_ldloc (mb, conv_arg);
4838 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4840 mono_mb_patch_branch (mb, pos2);
4844 g_assert_not_reached ();
4852 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4853 MonoMarshalSpec *spec,
4854 int conv_arg, MonoType **conv_arg_type,
4855 MarshalAction action)
4858 MonoMethodBuilder *mb = m->mb;
4861 case MARSHAL_ACTION_CONV_IN: {
4862 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4864 g_assert (t->type == MONO_TYPE_OBJECT);
4865 g_assert (!t->byref);
4867 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4868 mono_mb_emit_ldarg (mb, argnum);
4869 mono_mb_emit_icon (mb, encoding);
4870 mono_mb_emit_icon (mb, t->attrs);
4871 mono_mb_emit_icall (mb, mono_marshal_asany);
4872 mono_mb_emit_stloc (mb, conv_arg);
4876 case MARSHAL_ACTION_PUSH:
4877 mono_mb_emit_ldloc (mb, conv_arg);
4880 case MARSHAL_ACTION_CONV_OUT: {
4881 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4883 mono_mb_emit_ldarg (mb, argnum);
4884 mono_mb_emit_ldloc (mb, conv_arg);
4885 mono_mb_emit_icon (mb, encoding);
4886 mono_mb_emit_icon (mb, t->attrs);
4887 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4892 g_assert_not_reached ();
4899 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4900 MonoMarshalSpec *spec,
4901 int conv_arg, MonoType **conv_arg_type,
4902 MarshalAction action)
4905 MonoMethodBuilder *mb = m->mb;
4906 MonoClass *klass, *date_time_class;
4909 klass = mono_class_from_mono_type (t);
4911 date_time_class = mono_class_get_date_time_class ();
4914 case MARSHAL_ACTION_CONV_IN:
4915 if (klass == date_time_class) {
4916 /* Convert it to an OLE DATE type */
4917 static MonoMethod *to_oadate;
4920 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4921 g_assert (to_oadate);
4923 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4926 mono_mb_emit_ldarg (mb, argnum);
4927 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4930 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4932 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4934 mono_mb_emit_ldarg_addr (mb, argnum);
4935 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4936 mono_mb_emit_stloc (mb, conv_arg);
4940 mono_mb_patch_branch (mb, pos);
4944 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4945 klass->blittable || klass->enumtype)
4948 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4950 /* store the address of the source into local variable 0 */
4952 mono_mb_emit_ldarg (mb, argnum);
4954 mono_mb_emit_ldarg_addr (mb, argnum);
4956 mono_mb_emit_stloc (mb, 0);
4958 /* allocate space for the native struct and
4959 * store the address into local variable 1 (dest) */
4960 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4961 mono_mb_emit_byte (mb, CEE_PREFIX1);
4962 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4963 mono_mb_emit_stloc (mb, conv_arg);
4966 mono_mb_emit_ldloc (mb, 0);
4967 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4970 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4972 mono_mb_emit_ldloc (mb, conv_arg);
4973 mono_mb_emit_stloc (mb, 1);
4975 /* emit valuetype conversion code */
4976 emit_struct_conv (mb, klass, FALSE);
4980 mono_mb_patch_branch (mb, pos);
4983 case MARSHAL_ACTION_PUSH:
4984 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4986 g_assert (!t->byref);
4988 /* Have to change the signature since the vtype is passed byref */
4989 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4991 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4992 klass->blittable || klass->enumtype)
4993 mono_mb_emit_ldarg_addr (mb, argnum);
4995 mono_mb_emit_ldloc (mb, conv_arg);
4999 if (klass == date_time_class) {
5001 mono_mb_emit_ldloc_addr (mb, conv_arg);
5003 mono_mb_emit_ldloc (mb, conv_arg);
5007 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5008 klass->blittable || klass->enumtype) {
5009 mono_mb_emit_ldarg (mb, argnum);
5012 mono_mb_emit_ldloc (mb, conv_arg);
5014 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5015 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5019 case MARSHAL_ACTION_CONV_OUT:
5020 if (klass == date_time_class) {
5021 /* Convert from an OLE DATE type */
5022 static MonoMethod *from_oadate;
5027 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5029 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5030 g_assert (from_oadate);
5032 mono_mb_emit_ldarg (mb, argnum);
5033 mono_mb_emit_ldloc (mb, conv_arg);
5034 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5035 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5040 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5041 klass->blittable || klass->enumtype)
5045 /* dst = argument */
5046 mono_mb_emit_ldarg (mb, argnum);
5047 mono_mb_emit_stloc (mb, 1);
5049 mono_mb_emit_ldloc (mb, 1);
5050 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5052 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5053 /* src = tmp_locals [i] */
5054 mono_mb_emit_ldloc (mb, conv_arg);
5055 mono_mb_emit_stloc (mb, 0);
5057 /* emit valuetype conversion code */
5058 emit_struct_conv (mb, klass, TRUE);
5062 emit_struct_free (mb, klass, conv_arg);
5065 mono_mb_patch_branch (mb, pos);
5068 case MARSHAL_ACTION_CONV_RESULT:
5069 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5071 mono_mb_emit_stloc (mb, 3);
5075 /* load pointer to returned value type */
5076 g_assert (m->vtaddr_var);
5077 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5078 /* store the address of the source into local variable 0 */
5079 mono_mb_emit_stloc (mb, 0);
5081 mono_mb_emit_ldloc_addr (mb, 3);
5082 mono_mb_emit_stloc (mb, 1);
5084 /* emit valuetype conversion code */
5085 emit_struct_conv (mb, klass, TRUE);
5088 case MARSHAL_ACTION_MANAGED_CONV_IN:
5089 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5090 klass->blittable || klass->enumtype) {
5095 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5097 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5101 mono_mb_emit_ldarg (mb, argnum);
5103 mono_mb_emit_ldarg_addr (mb, argnum);
5104 mono_mb_emit_stloc (mb, 0);
5107 mono_mb_emit_ldloc (mb, 0);
5108 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5111 mono_mb_emit_ldloc_addr (mb, conv_arg);
5112 mono_mb_emit_stloc (mb, 1);
5114 /* emit valuetype conversion code */
5115 emit_struct_conv (mb, klass, TRUE);
5118 mono_mb_patch_branch (mb, pos);
5121 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5122 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5123 klass->blittable || klass->enumtype) {
5127 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5130 /* Check for null */
5131 mono_mb_emit_ldarg (mb, argnum);
5132 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5135 mono_mb_emit_ldloc_addr (mb, conv_arg);
5136 mono_mb_emit_stloc (mb, 0);
5139 mono_mb_emit_ldarg (mb, argnum);
5140 mono_mb_emit_stloc (mb, 1);
5142 /* emit valuetype conversion code */
5143 emit_struct_conv (mb, klass, FALSE);
5145 mono_mb_patch_branch (mb, pos2);
5148 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5149 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5150 klass->blittable || klass->enumtype) {
5151 mono_mb_emit_stloc (mb, 3);
5156 /* load pointer to returned value type */
5157 g_assert (m->vtaddr_var);
5158 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5160 /* store the address of the source into local variable 0 */
5161 mono_mb_emit_stloc (mb, 0);
5162 /* allocate space for the native struct and
5163 * store the address into dst_ptr */
5164 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5165 m->retobj_class = klass;
5166 g_assert (m->retobj_var);
5167 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5168 mono_mb_emit_byte (mb, CEE_CONV_I);
5169 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5170 mono_mb_emit_stloc (mb, 1);
5171 mono_mb_emit_ldloc (mb, 1);
5172 mono_mb_emit_stloc (mb, m->retobj_var);
5174 /* emit valuetype conversion code */
5175 emit_struct_conv (mb, klass, FALSE);
5179 g_assert_not_reached ();
5186 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5187 MonoMarshalSpec *spec,
5188 int conv_arg, MonoType **conv_arg_type,
5189 MarshalAction action)
5193 case MARSHAL_ACTION_CONV_IN:
5194 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5196 case MARSHAL_ACTION_MANAGED_CONV_IN:
5197 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5201 MonoMethodBuilder *mb = m->mb;
5202 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5203 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5207 case MARSHAL_ACTION_CONV_IN:
5208 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5209 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5212 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5215 mono_mb_emit_ldarg (mb, argnum);
5216 mono_mb_emit_byte (mb, CEE_LDIND_I);
5218 mono_mb_emit_ldarg (mb, argnum);
5221 if (conv == MONO_MARSHAL_CONV_INVALID) {
5222 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5223 mono_mb_emit_exception_marshal_directive (mb, msg);
5225 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5227 mono_mb_emit_stloc (mb, conv_arg);
5231 case MARSHAL_ACTION_CONV_OUT:
5232 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5233 if (conv == MONO_MARSHAL_CONV_INVALID) {
5234 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5235 mono_mb_emit_exception_marshal_directive (mb, msg);
5239 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5240 static MonoMethod *m;
5243 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5248 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5249 mono_mb_emit_exception_marshal_directive (mb, msg);
5254 * Have to allocate a new string with the same length as the original, and
5255 * copy the contents of the buffer pointed to by CONV_ARG into it.
5257 g_assert (t->byref);
5258 mono_mb_emit_ldarg (mb, argnum);
5259 mono_mb_emit_ldloc (mb, conv_arg);
5260 mono_mb_emit_ldarg (mb, argnum);
5261 mono_mb_emit_byte (mb, CEE_LDIND_I);
5262 mono_mb_emit_managed_call (mb, m, NULL);
5263 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5264 mono_mb_emit_byte (mb, CEE_STIND_REF);
5265 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5267 mono_mb_emit_ldarg (mb, argnum);
5268 mono_mb_emit_ldloc (mb, conv_arg);
5269 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5270 mono_mb_emit_byte (mb, stind_op);
5275 mono_mb_emit_ldloc (mb, conv_arg);
5276 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5277 mono_mb_emit_icall (mb, mono_free_bstr);
5279 mono_mb_emit_icall (mb, mono_marshal_free);
5283 case MARSHAL_ACTION_PUSH:
5284 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5285 mono_mb_emit_ldloc_addr (mb, conv_arg);
5287 mono_mb_emit_ldloc (mb, conv_arg);
5290 case MARSHAL_ACTION_CONV_RESULT:
5291 mono_mb_emit_stloc (mb, 0);
5293 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5294 if (conv == MONO_MARSHAL_CONV_INVALID) {
5295 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5296 mono_mb_emit_exception_marshal_directive (mb, msg);
5300 mono_mb_emit_ldloc (mb, 0);
5301 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5302 mono_mb_emit_stloc (mb, 3);
5304 /* free the string */
5305 mono_mb_emit_ldloc (mb, 0);
5306 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5307 mono_mb_emit_icall (mb, mono_free_bstr);
5309 mono_mb_emit_icall (mb, mono_marshal_free);
5312 case MARSHAL_ACTION_MANAGED_CONV_IN:
5313 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5315 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5318 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5322 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5323 if (conv == MONO_MARSHAL_CONV_INVALID) {
5324 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5325 mono_mb_emit_exception_marshal_directive (mb, msg);
5329 mono_mb_emit_ldarg (mb, argnum);
5331 mono_mb_emit_byte (mb, CEE_LDIND_I);
5332 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5333 mono_mb_emit_stloc (mb, conv_arg);
5336 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5340 mono_mb_emit_ldarg (mb, argnum);
5341 mono_mb_emit_ldloc (mb, conv_arg);
5342 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5343 mono_mb_emit_byte (mb, stind_op);
5348 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5349 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5350 /* We need to make a copy so the caller is able to free it */
5351 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5353 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5354 mono_mb_emit_stloc (mb, 3);
5358 g_assert_not_reached ();
5366 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5367 MonoMarshalSpec *spec, int conv_arg,
5368 MonoType **conv_arg_type, MarshalAction action)
5371 if (action == MARSHAL_ACTION_CONV_IN)
5372 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5374 MonoMethodBuilder *mb = m->mb;
5377 case MARSHAL_ACTION_CONV_IN: {
5378 MonoType *intptr_type;
5379 int dar_release_slot, pos;
5381 intptr_type = &mono_defaults.int_class->byval_arg;
5382 conv_arg = mono_mb_add_local (mb, intptr_type);
5383 *conv_arg_type = intptr_type;
5385 if (!sh_dangerous_add_ref)
5386 init_safe_handle ();
5388 mono_mb_emit_ldarg (mb, argnum);
5389 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5390 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5392 mono_mb_patch_branch (mb, pos);
5395 * My tests in show that ref SafeHandles are not really
5396 * passed as ref objects. Instead a NULL is passed as the
5399 mono_mb_emit_icon (mb, 0);
5400 mono_mb_emit_stloc (mb, conv_arg);
5404 /* Create local to hold the ref parameter to DangerousAddRef */
5405 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5407 /* set release = false; */
5408 mono_mb_emit_icon (mb, 0);
5409 mono_mb_emit_stloc (mb, dar_release_slot);
5411 /* safehandle.DangerousAddRef (ref release) */
5412 mono_mb_emit_ldarg (mb, argnum);
5413 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5414 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5416 /* Pull the handle field from SafeHandle */
5417 mono_mb_emit_ldarg (mb, argnum);
5418 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5419 mono_mb_emit_byte (mb, CEE_LDIND_I);
5420 mono_mb_emit_stloc (mb, conv_arg);
5425 case MARSHAL_ACTION_PUSH:
5427 mono_mb_emit_ldloc_addr (mb, conv_arg);
5429 mono_mb_emit_ldloc (mb, conv_arg);
5432 case MARSHAL_ACTION_CONV_OUT: {
5433 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5434 int dar_release_slot = conv_arg + 1;
5437 if (!sh_dangerous_release)
5438 init_safe_handle ();
5444 * My tests indicate that ref SafeHandles parameters are not actually
5445 * passed by ref, but instead a new Handle is created regardless of
5446 * whether a change happens in the unmanaged side.
5448 * Also, the Handle is created before calling into unmanaged code,
5449 * but we do not support that mechanism (getting to the original
5450 * handle) and it makes no difference where we create this
5452 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5454 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5457 /* refval = new SafeHandleDerived ()*/
5458 mono_mb_emit_ldarg (mb, argnum);
5459 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5460 mono_mb_emit_byte (mb, CEE_STIND_REF);
5462 /* refval.handle = returned_handle */
5463 mono_mb_emit_ldarg (mb, argnum);
5464 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5465 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5466 mono_mb_emit_ldloc (mb, conv_arg);
5467 mono_mb_emit_byte (mb, CEE_STIND_I);
5469 mono_mb_emit_ldloc (mb, dar_release_slot);
5470 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5471 mono_mb_emit_ldarg (mb, argnum);
5472 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5473 mono_mb_patch_branch (mb, label_next);
5478 case MARSHAL_ACTION_CONV_RESULT: {
5479 MonoMethod *ctor = NULL;
5480 int intptr_handle_slot;
5482 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5483 mono_mb_emit_byte (mb, CEE_POP);
5484 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5488 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5490 mono_mb_emit_byte (mb, CEE_POP);
5491 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5494 /* Store the IntPtr results into a local */
5495 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5496 mono_mb_emit_stloc (mb, intptr_handle_slot);
5498 /* Create return value */
5499 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5500 mono_mb_emit_stloc (mb, 3);
5502 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5503 mono_mb_emit_ldloc (mb, 3);
5504 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5505 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5506 mono_mb_emit_byte (mb, CEE_STIND_I);
5510 case MARSHAL_ACTION_MANAGED_CONV_IN:
5511 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5514 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5515 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5518 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5519 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5522 printf ("Unhandled case for MarshalAction: %d\n", action);
5530 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5531 MonoMarshalSpec *spec, int conv_arg,
5532 MonoType **conv_arg_type, MarshalAction action)
5535 if (action == MARSHAL_ACTION_CONV_IN)
5536 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5538 MonoMethodBuilder *mb = m->mb;
5541 case MARSHAL_ACTION_CONV_IN: {
5542 MonoType *intptr_type;
5544 intptr_type = &mono_defaults.int_class->byval_arg;
5545 conv_arg = mono_mb_add_local (mb, intptr_type);
5546 *conv_arg_type = intptr_type;
5549 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5550 mono_mb_emit_exception_marshal_directive (mb, msg);
5553 mono_mb_emit_ldarg_addr (mb, argnum);
5554 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5555 mono_mb_emit_byte (mb, CEE_ADD);
5556 mono_mb_emit_byte (mb, CEE_LDIND_I);
5557 mono_mb_emit_stloc (mb, conv_arg);
5561 case MARSHAL_ACTION_PUSH:
5562 mono_mb_emit_ldloc (mb, conv_arg);
5565 case MARSHAL_ACTION_CONV_OUT: {
5566 /* no resource release required */
5570 case MARSHAL_ACTION_CONV_RESULT: {
5571 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5572 mono_mb_emit_exception_marshal_directive (mb, msg);
5576 case MARSHAL_ACTION_MANAGED_CONV_IN:
5577 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5580 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5581 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5584 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5585 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5588 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5596 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5597 MonoMarshalSpec *spec,
5598 int conv_arg, MonoType **conv_arg_type,
5599 MarshalAction action)
5602 if (action == MARSHAL_ACTION_CONV_IN)
5603 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5605 MonoMethodBuilder *mb = m->mb;
5606 MonoClass *klass = mono_class_from_mono_type (t);
5610 case MARSHAL_ACTION_CONV_IN:
5611 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5612 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5614 m->orig_conv_args [argnum] = 0;
5616 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5617 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5618 mono_mb_emit_exception_marshal_directive (mb, msg);
5622 if (klass->delegate) {
5624 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5625 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5626 mono_mb_emit_exception_marshal_directive (mb, msg);
5628 mono_mb_emit_byte (mb, CEE_LDNULL);
5629 mono_mb_emit_stloc (mb, conv_arg);
5631 mono_mb_emit_ldarg (mb, argnum);
5632 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5633 mono_mb_emit_stloc (mb, conv_arg);
5635 } else if (klass == mono_defaults.stringbuilder_class) {
5636 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5637 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5641 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5642 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5643 mono_mb_emit_exception_marshal_directive (mb, msg);
5649 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5652 if (conv == MONO_MARSHAL_CONV_INVALID) {
5653 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5654 mono_mb_emit_exception_marshal_directive (mb, msg);
5658 mono_mb_emit_ldarg (mb, argnum);
5660 mono_mb_emit_byte (mb, CEE_LDIND_I);
5662 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5663 mono_mb_emit_stloc (mb, conv_arg);
5664 } else if (klass->blittable) {
5665 mono_mb_emit_byte (mb, CEE_LDNULL);
5666 mono_mb_emit_stloc (mb, conv_arg);
5668 mono_mb_emit_ldarg (mb, argnum);
5669 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5671 mono_mb_emit_ldarg (mb, argnum);
5672 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5673 mono_mb_emit_stloc (mb, conv_arg);
5675 mono_mb_patch_branch (mb, pos);
5678 mono_mb_emit_byte (mb, CEE_LDNULL);
5679 mono_mb_emit_stloc (mb, conv_arg);
5682 /* we dont need any conversions for out parameters */
5683 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5686 mono_mb_emit_ldarg (mb, argnum);
5687 mono_mb_emit_byte (mb, CEE_LDIND_I);
5690 mono_mb_emit_ldarg (mb, argnum);
5691 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5692 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5695 /* store the address of the source into local variable 0 */
5696 mono_mb_emit_stloc (mb, 0);
5697 mono_mb_emit_ldloc (mb, 0);
5698 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5700 /* allocate space for the native struct and store the address */
5701 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5702 mono_mb_emit_byte (mb, CEE_PREFIX1);
5703 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5704 mono_mb_emit_stloc (mb, conv_arg);
5707 /* Need to store the original buffer so we can free it later */
5708 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5709 mono_mb_emit_ldloc (mb, conv_arg);
5710 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5713 /* set the src_ptr */
5714 mono_mb_emit_ldloc (mb, 0);
5715 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5716 mono_mb_emit_stloc (mb, 0);
5719 mono_mb_emit_ldloc (mb, conv_arg);
5720 mono_mb_emit_stloc (mb, 1);
5722 /* emit valuetype conversion code */
5723 emit_struct_conv (mb, klass, FALSE);
5725 mono_mb_patch_branch (mb, pos);
5729 case MARSHAL_ACTION_CONV_OUT:
5730 if (klass == mono_defaults.stringbuilder_class) {
5732 MonoMarshalNative encoding;
5733 MonoMarshalConv conv;
5735 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5736 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5738 g_assert (encoding != -1);
5741 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5745 mono_mb_emit_ldarg (mb, argnum);
5746 mono_mb_emit_ldloc (mb, conv_arg);
5749 case MONO_NATIVE_LPWSTR:
5750 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5752 case MONO_NATIVE_LPSTR:
5753 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5756 g_assert_not_reached ();
5759 mono_mb_emit_byte (mb, CEE_STIND_REF);
5761 mono_mb_emit_ldarg (mb, argnum);
5762 mono_mb_emit_ldloc (mb, conv_arg);
5764 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5768 mono_mb_emit_ldloc (mb, conv_arg);
5769 mono_mb_emit_icall (mb, mono_marshal_free);
5774 if (klass->delegate) {
5776 mono_mb_emit_ldarg (mb, argnum);
5777 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5778 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5779 mono_mb_emit_ldloc (mb, conv_arg);
5780 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5781 mono_mb_emit_byte (mb, CEE_STIND_REF);
5786 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5787 /* allocate a new object */
5788 mono_mb_emit_ldarg (mb, argnum);
5789 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5790 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5791 mono_mb_emit_byte (mb, CEE_STIND_REF);
5794 /* dst = *argument */
5795 mono_mb_emit_ldarg (mb, argnum);
5798 mono_mb_emit_byte (mb, CEE_LDIND_I);
5800 mono_mb_emit_stloc (mb, 1);
5802 mono_mb_emit_ldloc (mb, 1);
5803 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5805 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5806 mono_mb_emit_ldloc (mb, 1);
5807 mono_mb_emit_icon (mb, sizeof (MonoObject));
5808 mono_mb_emit_byte (mb, CEE_ADD);
5809 mono_mb_emit_stloc (mb, 1);
5811 /* src = tmp_locals [i] */
5812 mono_mb_emit_ldloc (mb, conv_arg);
5813 mono_mb_emit_stloc (mb, 0);
5815 /* emit valuetype conversion code */
5816 emit_struct_conv (mb, klass, TRUE);
5818 /* Free the structure returned by the native code */
5819 emit_struct_free (mb, klass, conv_arg);
5821 if (m->orig_conv_args [argnum]) {
5823 * If the native function changed the pointer, then free
5824 * the original structure plus the new pointer.
5826 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5827 mono_mb_emit_ldloc (mb, conv_arg);
5828 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5830 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5831 g_assert (m->orig_conv_args [argnum]);
5833 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5836 mono_mb_emit_ldloc (mb, conv_arg);
5837 mono_mb_emit_icall (mb, mono_marshal_free);
5839 mono_mb_patch_branch (mb, pos2);
5843 /* Free the original structure passed to native code */
5844 emit_struct_free (mb, klass, conv_arg);
5846 mono_mb_patch_branch (mb, pos);
5849 case MARSHAL_ACTION_PUSH:
5851 mono_mb_emit_ldloc_addr (mb, conv_arg);
5853 mono_mb_emit_ldloc (mb, conv_arg);
5856 case MARSHAL_ACTION_CONV_RESULT:
5857 if (klass->delegate) {
5858 g_assert (!t->byref);
5859 mono_mb_emit_stloc (mb, 0);
5860 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5861 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5862 mono_mb_emit_ldloc (mb, 0);
5863 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5864 mono_mb_emit_stloc (mb, 3);
5867 mono_mb_emit_stloc (mb, 0);
5869 /* Make a copy since emit_conv modifies local 0 */
5870 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5871 mono_mb_emit_ldloc (mb, 0);
5872 mono_mb_emit_stloc (mb, loc);
5874 mono_mb_emit_byte (mb, CEE_LDNULL);
5875 mono_mb_emit_stloc (mb, 3);
5877 mono_mb_emit_ldloc (mb, 0);
5878 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5880 /* allocate result object */
5882 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5883 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5884 mono_mb_emit_stloc (mb, 3);
5888 mono_mb_emit_ldloc (mb, 3);
5889 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5890 mono_mb_emit_stloc (mb, 1);
5892 /* emit conversion code */
5893 emit_struct_conv (mb, klass, TRUE);
5895 emit_struct_free (mb, klass, loc);
5897 /* Free the pointer allocated by unmanaged code */
5898 mono_mb_emit_ldloc (mb, loc);
5899 mono_mb_emit_icall (mb, mono_marshal_free);
5900 mono_mb_patch_branch (mb, pos);
5904 case MARSHAL_ACTION_MANAGED_CONV_IN:
5905 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5907 if (klass->delegate) {
5908 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5909 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5910 mono_mb_emit_ldarg (mb, argnum);
5912 mono_mb_emit_byte (mb, CEE_LDIND_I);
5913 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5914 mono_mb_emit_stloc (mb, conv_arg);
5918 if (klass == mono_defaults.stringbuilder_class) {
5919 MonoMarshalNative encoding;
5921 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5924 g_assert (encoding == MONO_NATIVE_LPSTR);
5926 g_assert (!t->byref);
5927 g_assert (encoding != -1);
5929 mono_mb_emit_ldarg (mb, argnum);
5930 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5931 mono_mb_emit_stloc (mb, conv_arg);
5935 /* The class can not have an automatic layout */
5936 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5937 mono_mb_emit_auto_layout_exception (mb, klass);
5941 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5942 mono_mb_emit_byte (mb, CEE_LDNULL);
5943 mono_mb_emit_stloc (mb, conv_arg);
5948 mono_mb_emit_ldarg (mb, argnum);
5952 /* Check for NULL and raise an exception */
5953 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5955 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5957 mono_mb_patch_branch (mb, pos2);
5958 mono_mb_emit_ldarg (mb, argnum);
5959 mono_mb_emit_byte (mb, CEE_LDIND_I);
5962 mono_mb_emit_stloc (mb, 0);
5964 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5965 mono_mb_emit_stloc (mb, conv_arg);
5967 mono_mb_emit_ldloc (mb, 0);
5968 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5970 /* Create and set dst */
5971 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5972 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5973 mono_mb_emit_stloc (mb, conv_arg);
5974 mono_mb_emit_ldloc (mb, conv_arg);
5975 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5976 mono_mb_emit_stloc (mb, 1);
5978 /* emit valuetype conversion code */
5979 emit_struct_conv (mb, klass, TRUE);
5981 mono_mb_patch_branch (mb, pos);
5984 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5985 if (klass->delegate) {
5988 mono_mb_emit_ldarg (mb, argnum);
5989 mono_mb_emit_ldloc (mb, conv_arg);
5990 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5991 mono_mb_emit_byte (mb, stind_op);
5997 /* Check for null */
5998 mono_mb_emit_ldloc (mb, conv_arg);
5999 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6000 mono_mb_emit_ldarg (mb, argnum);
6001 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6002 mono_mb_emit_byte (mb, CEE_STIND_REF);
6003 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6005 mono_mb_patch_branch (mb, pos);
6008 mono_mb_emit_ldloc (mb, conv_arg);
6009 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6010 mono_mb_emit_stloc (mb, 0);
6012 /* Allocate and set dest */
6013 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6014 mono_mb_emit_byte (mb, CEE_CONV_I);
6015 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6016 mono_mb_emit_stloc (mb, 1);
6018 /* Update argument pointer */
6019 mono_mb_emit_ldarg (mb, argnum);
6020 mono_mb_emit_ldloc (mb, 1);
6021 mono_mb_emit_byte (mb, CEE_STIND_I);
6023 /* emit valuetype conversion code */
6024 emit_struct_conv (mb, klass, FALSE);
6026 mono_mb_patch_branch (mb, pos2);
6027 } else if (klass == mono_defaults.stringbuilder_class) {
6028 // FIXME: What to do here ?
6030 /* byval [Out] marshalling */
6032 /* FIXME: Handle null */
6035 mono_mb_emit_ldloc (mb, conv_arg);
6036 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6037 mono_mb_emit_stloc (mb, 0);
6040 mono_mb_emit_ldarg (mb, argnum);
6041 mono_mb_emit_stloc (mb, 1);
6043 /* emit valuetype conversion code */
6044 emit_struct_conv (mb, klass, FALSE);
6048 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6049 if (klass->delegate) {
6050 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6051 mono_mb_emit_stloc (mb, 3);
6055 /* The class can not have an automatic layout */
6056 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6057 mono_mb_emit_auto_layout_exception (mb, klass);
6061 mono_mb_emit_stloc (mb, 0);
6062 /* Check for null */
6063 mono_mb_emit_ldloc (mb, 0);
6064 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6065 mono_mb_emit_byte (mb, CEE_LDNULL);
6066 mono_mb_emit_stloc (mb, 3);
6067 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6069 mono_mb_patch_branch (mb, pos);
6072 mono_mb_emit_ldloc (mb, 0);
6073 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6074 mono_mb_emit_stloc (mb, 0);
6076 /* Allocate and set dest */
6077 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6078 mono_mb_emit_byte (mb, CEE_CONV_I);
6079 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6080 mono_mb_emit_byte (mb, CEE_DUP);
6081 mono_mb_emit_stloc (mb, 1);
6082 mono_mb_emit_stloc (mb, 3);
6084 emit_struct_conv (mb, klass, FALSE);
6086 mono_mb_patch_branch (mb, pos2);
6090 g_assert_not_reached ();
6101 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6102 MonoMarshalSpec *spec,
6103 int conv_arg, MonoType **conv_arg_type,
6104 MarshalAction action)
6106 MonoMethodBuilder *mb = m->mb;
6107 static MonoMethod *get_object_for_native_variant = NULL;
6108 static MonoMethod *get_native_variant_for_object = NULL;
6110 if (!get_object_for_native_variant)
6111 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6112 g_assert (get_object_for_native_variant);
6114 if (!get_native_variant_for_object)
6115 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6116 g_assert (get_native_variant_for_object);
6119 case MARSHAL_ACTION_CONV_IN: {
6120 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6123 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6125 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6127 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6130 mono_mb_emit_ldarg (mb, argnum);
6132 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6133 mono_mb_emit_ldloc_addr (mb, conv_arg);
6134 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6138 case MARSHAL_ACTION_CONV_OUT: {
6139 static MonoMethod *variant_clear = NULL;
6142 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6143 g_assert (variant_clear);
6146 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6147 mono_mb_emit_ldarg (mb, argnum);
6148 mono_mb_emit_ldloc_addr (mb, conv_arg);
6149 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6150 mono_mb_emit_byte (mb, CEE_STIND_REF);
6153 mono_mb_emit_ldloc_addr (mb, conv_arg);
6154 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6158 case MARSHAL_ACTION_PUSH:
6160 mono_mb_emit_ldloc_addr (mb, conv_arg);
6162 mono_mb_emit_ldloc (mb, conv_arg);
6165 case MARSHAL_ACTION_CONV_RESULT: {
6166 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6167 mono_mb_emit_exception_marshal_directive (mb, msg);
6171 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6172 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6175 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6177 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6179 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6183 mono_mb_emit_ldarg (mb, argnum);
6185 mono_mb_emit_ldarg_addr (mb, argnum);
6186 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6187 mono_mb_emit_stloc (mb, conv_arg);
6191 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6192 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6193 mono_mb_emit_ldloc (mb, conv_arg);
6194 mono_mb_emit_ldarg (mb, argnum);
6195 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6200 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6201 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6202 mono_mb_emit_exception_marshal_directive (mb, msg);
6207 g_assert_not_reached ();
6213 #endif /* DISABLE_COM */
6214 #endif /* DISABLE_JIT */
6217 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6219 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6220 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6222 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6224 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6236 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6237 MonoMarshalSpec *spec,
6238 int conv_arg, MonoType **conv_arg_type,
6239 MarshalAction action)
6243 case MARSHAL_ACTION_CONV_IN:
6244 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6246 case MARSHAL_ACTION_MANAGED_CONV_IN:
6247 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6251 MonoMethodBuilder *mb = m->mb;
6252 MonoClass *klass = mono_class_from_mono_type (t);
6253 gboolean need_convert, need_free;
6254 MonoMarshalNative encoding;
6256 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6259 case MARSHAL_ACTION_CONV_IN:
6260 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6261 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6263 if (klass->element_class->blittable) {
6264 mono_mb_emit_ldarg (mb, argnum);
6266 mono_mb_emit_byte (mb, CEE_LDIND_I);
6267 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6268 mono_mb_emit_stloc (mb, conv_arg);
6271 guint32 label1, label2, label3;
6272 int index_var, src_var, dest_ptr, esize;
6273 MonoMarshalConv conv;
6274 gboolean is_string = FALSE;
6276 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6278 eklass = klass->element_class;
6280 if (eklass == mono_defaults.string_class) {
6282 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6284 else if (eklass == mono_defaults.stringbuilder_class) {
6286 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6289 conv = MONO_MARSHAL_CONV_INVALID;
6291 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6292 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6293 mono_mb_emit_exception_marshal_directive (mb, msg);
6297 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6298 mono_mb_emit_ldarg (mb, argnum);
6300 mono_mb_emit_byte (mb, CEE_LDIND_I);
6301 mono_mb_emit_stloc (mb, src_var);
6304 mono_mb_emit_ldloc (mb, src_var);
6305 mono_mb_emit_stloc (mb, conv_arg);
6306 mono_mb_emit_ldloc (mb, src_var);
6307 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6310 esize = sizeof (gpointer);
6311 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6312 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6314 esize = mono_class_native_size (eklass, NULL);
6316 /* allocate space for the native struct and store the address */
6317 mono_mb_emit_icon (mb, esize);
6318 mono_mb_emit_ldloc (mb, src_var);
6319 mono_mb_emit_byte (mb, CEE_LDLEN);
6321 if (eklass == mono_defaults.string_class) {
6322 /* Make the array bigger for the terminating null */
6323 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6324 mono_mb_emit_byte (mb, CEE_ADD);
6326 mono_mb_emit_byte (mb, CEE_MUL);
6327 mono_mb_emit_byte (mb, CEE_PREFIX1);
6328 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6329 mono_mb_emit_stloc (mb, conv_arg);
6331 mono_mb_emit_ldloc (mb, conv_arg);
6332 mono_mb_emit_stloc (mb, dest_ptr);
6334 /* Emit marshalling loop */
6335 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6336 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6337 mono_mb_emit_stloc (mb, index_var);
6338 label2 = mono_mb_get_label (mb);
6339 mono_mb_emit_ldloc (mb, index_var);
6340 mono_mb_emit_ldloc (mb, src_var);
6341 mono_mb_emit_byte (mb, CEE_LDLEN);
6342 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6344 /* Emit marshalling code */
6348 mono_mb_emit_ldloc (mb, dest_ptr);
6349 mono_mb_emit_ldloc (mb, src_var);
6350 mono_mb_emit_ldloc (mb, index_var);
6351 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6352 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6353 mono_mb_emit_byte (mb, stind_op);
6355 /* set the src_ptr */
6356 mono_mb_emit_ldloc (mb, src_var);
6357 mono_mb_emit_ldloc (mb, index_var);
6358 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6359 mono_mb_emit_stloc (mb, 0);
6362 mono_mb_emit_ldloc (mb, dest_ptr);
6363 mono_mb_emit_stloc (mb, 1);
6365 /* emit valuetype conversion code */
6366 emit_struct_conv_full (mb, eklass, FALSE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6369 mono_mb_emit_add_to_local (mb, index_var, 1);
6370 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6372 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6374 mono_mb_patch_branch (mb, label3);
6376 if (eklass == mono_defaults.string_class) {
6377 /* Null terminate */
6378 mono_mb_emit_ldloc (mb, dest_ptr);
6379 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6380 mono_mb_emit_byte (mb, CEE_STIND_REF);
6383 mono_mb_patch_branch (mb, label1);
6388 case MARSHAL_ACTION_CONV_OUT:
6389 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6390 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);
6391 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6394 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6395 int param_num = spec->data.array_data.param_num;
6396 MonoType *param_type;
6398 param_type = m->sig->params [param_num];
6400 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6401 char *msg = g_strdup ("Not implemented.");
6402 mono_mb_emit_exception_marshal_directive (mb, msg);
6407 mono_mb_emit_ldarg (mb, argnum);
6409 /* Create the managed array */
6410 mono_mb_emit_ldarg (mb, param_num);
6411 if (m->sig->params [param_num]->byref)
6412 // FIXME: Support other types
6413 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6414 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6415 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6416 /* Store into argument */
6417 mono_mb_emit_byte (mb, CEE_STIND_REF);
6421 if (need_convert || need_free) {
6422 /* FIXME: Optimize blittable case */
6424 guint32 label1, label2, label3;
6425 int index_var, src_ptr, loc, esize;
6427 eklass = klass->element_class;
6428 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6429 esize = sizeof (gpointer);
6430 else if (eklass == mono_defaults.char_class)
6431 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6433 esize = mono_class_native_size (eklass, NULL);
6434 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6435 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6438 mono_mb_emit_ldarg (mb, argnum);
6440 mono_mb_emit_byte (mb, CEE_LDIND_I);
6441 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6443 mono_mb_emit_ldloc (mb, conv_arg);
6444 mono_mb_emit_stloc (mb, src_ptr);
6446 /* Emit marshalling loop */
6447 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6448 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6449 mono_mb_emit_stloc (mb, index_var);
6450 label2 = mono_mb_get_label (mb);
6451 mono_mb_emit_ldloc (mb, index_var);
6452 mono_mb_emit_ldarg (mb, argnum);
6454 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6455 mono_mb_emit_byte (mb, CEE_LDLEN);
6456 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6458 /* Emit marshalling code */
6460 if (eklass == mono_defaults.stringbuilder_class) {
6461 gboolean need_free2;
6462 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6464 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6467 mono_mb_emit_ldarg (mb, argnum);
6469 mono_mb_emit_byte (mb, CEE_LDIND_I);
6470 mono_mb_emit_ldloc (mb, index_var);
6471 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6474 mono_mb_emit_ldloc (mb, src_ptr);
6475 mono_mb_emit_byte (mb, CEE_LDIND_I);
6477 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6481 mono_mb_emit_ldloc (mb, src_ptr);
6482 mono_mb_emit_byte (mb, CEE_LDIND_I);
6484 mono_mb_emit_icall (mb, mono_marshal_free);
6487 else if (eklass == mono_defaults.string_class) {
6490 mono_mb_emit_ldloc (mb, src_ptr);
6491 mono_mb_emit_byte (mb, CEE_LDIND_I);
6493 mono_mb_emit_icall (mb, mono_marshal_free);
6498 /* set the src_ptr */
6499 mono_mb_emit_ldloc (mb, src_ptr);
6500 mono_mb_emit_stloc (mb, 0);
6503 mono_mb_emit_ldarg (mb, argnum);
6505 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6506 mono_mb_emit_ldloc (mb, index_var);
6507 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6508 mono_mb_emit_stloc (mb, 1);
6510 /* emit valuetype conversion code */
6511 emit_struct_conv_full (mb, eklass, TRUE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6515 mono_mb_emit_ldloc (mb, src_ptr);
6516 mono_mb_emit_stloc (mb, loc);
6517 mono_mb_emit_ldloc (mb, loc);
6519 emit_struct_free (mb, eklass, loc);
6523 mono_mb_emit_add_to_local (mb, index_var, 1);
6524 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6526 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6528 mono_mb_patch_branch (mb, label1);
6529 mono_mb_patch_branch (mb, label3);
6532 if (klass->element_class->blittable) {
6533 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6535 mono_mb_emit_ldarg (mb, argnum);
6537 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6538 mono_mb_emit_ldloc (mb, conv_arg);
6539 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6544 case MARSHAL_ACTION_PUSH:
6546 mono_mb_emit_ldloc_addr (mb, conv_arg);
6548 mono_mb_emit_ldloc (mb, conv_arg);
6551 case MARSHAL_ACTION_CONV_RESULT:
6552 /* fixme: we need conversions here */
6553 mono_mb_emit_stloc (mb, 3);
6556 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6558 guint32 label1, label2, label3;
6559 int index_var, src_ptr, esize, param_num, num_elem;
6560 MonoMarshalConv conv;
6561 gboolean is_string = FALSE;
6563 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6564 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6567 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6568 mono_mb_emit_exception_marshal_directive (mb, msg);
6572 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6573 mono_mb_emit_exception_marshal_directive (mb, msg);
6576 if (spec->native != MONO_NATIVE_LPARRAY) {
6577 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6578 mono_mb_emit_exception_marshal_directive (mb, msg);
6582 /* FIXME: t is from the method which is wrapped, not the delegate type */
6583 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6585 param_num = spec->data.array_data.param_num;
6586 num_elem = spec->data.array_data.num_elem;
6587 if (spec->data.array_data.elem_mult == 0)
6588 /* param_num is not specified */
6591 if (param_num == -1) {
6592 if (num_elem <= 0) {
6593 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6594 mono_mb_emit_exception_marshal_directive (mb, msg);
6599 /* FIXME: Optimize blittable case */
6601 eklass = klass->element_class;
6602 if (eklass == mono_defaults.string_class) {
6604 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6606 else if (eklass == mono_defaults.stringbuilder_class) {
6608 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6611 conv = MONO_MARSHAL_CONV_INVALID;
6613 mono_marshal_load_type_info (eklass);
6616 esize = sizeof (gpointer);
6618 esize = mono_class_native_size (eklass, NULL);
6619 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6621 mono_mb_emit_byte (mb, CEE_LDNULL);
6622 mono_mb_emit_stloc (mb, conv_arg);
6624 /* Check param index */
6625 if (param_num != -1) {
6626 if (param_num >= m->sig->param_count) {
6627 char *msg = g_strdup ("Array size control parameter index is out of range.");
6628 mono_mb_emit_exception_marshal_directive (mb, msg);
6631 switch (m->sig->params [param_num]->type) {
6644 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6645 mono_mb_emit_exception_marshal_directive (mb, msg);
6652 mono_mb_emit_ldarg (mb, argnum);
6653 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6655 mono_mb_emit_ldarg (mb, argnum);
6656 mono_mb_emit_stloc (mb, src_ptr);
6658 /* Create managed array */
6660 * The LPArray marshalling spec says that sometimes param_num starts
6661 * from 1, sometimes it starts from 0. But MS seems to allways start
6665 if (param_num == -1) {
6666 mono_mb_emit_icon (mb, num_elem);
6668 mono_mb_emit_ldarg (mb, param_num);
6670 mono_mb_emit_icon (mb, num_elem);
6671 mono_mb_emit_byte (mb, CEE_ADD);
6673 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6676 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6677 mono_mb_emit_stloc (mb, conv_arg);
6679 if (eklass->blittable) {
6680 mono_mb_emit_ldloc (mb, conv_arg);
6681 mono_mb_emit_byte (mb, CEE_CONV_I);
6682 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6683 mono_mb_emit_byte (mb, CEE_ADD);
6684 mono_mb_emit_ldarg (mb, argnum);
6685 mono_mb_emit_ldloc (mb, conv_arg);
6686 mono_mb_emit_byte (mb, CEE_LDLEN);
6687 mono_mb_emit_icon (mb, esize);
6688 mono_mb_emit_byte (mb, CEE_MUL);
6689 mono_mb_emit_byte (mb, CEE_PREFIX1);
6690 mono_mb_emit_byte (mb, CEE_CPBLK);
6694 /* Emit marshalling loop */
6695 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6696 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6697 mono_mb_emit_stloc (mb, index_var);
6698 label2 = mono_mb_get_label (mb);
6699 mono_mb_emit_ldloc (mb, index_var);
6700 mono_mb_emit_ldloc (mb, conv_arg);
6701 mono_mb_emit_byte (mb, CEE_LDLEN);
6702 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6704 /* Emit marshalling code */
6706 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6708 mono_mb_emit_ldloc (mb, conv_arg);
6709 mono_mb_emit_ldloc (mb, index_var);
6711 mono_mb_emit_ldloc (mb, src_ptr);
6712 mono_mb_emit_byte (mb, CEE_LDIND_I);
6714 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6715 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6718 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6719 mono_mb_emit_exception_marshal_directive (mb, msg);
6723 mono_mb_emit_add_to_local (mb, index_var, 1);
6724 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6726 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6728 mono_mb_patch_branch (mb, label1);
6729 mono_mb_patch_branch (mb, label3);
6733 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6735 guint32 label1, label2, label3;
6736 int index_var, dest_ptr, esize, param_num, num_elem;
6737 MonoMarshalConv conv;
6738 gboolean is_string = FALSE;
6741 /* Already handled in CONV_IN */
6744 /* These are already checked in CONV_IN */
6745 g_assert (!t->byref);
6746 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6747 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6749 param_num = spec->data.array_data.param_num;
6750 num_elem = spec->data.array_data.num_elem;
6752 if (spec->data.array_data.elem_mult == 0)
6753 /* param_num is not specified */
6756 if (param_num == -1) {
6757 if (num_elem <= 0) {
6758 g_assert_not_reached ();
6762 /* FIXME: Optimize blittable case */
6764 eklass = klass->element_class;
6765 if (eklass == mono_defaults.string_class) {
6767 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6769 else if (eklass == mono_defaults.stringbuilder_class) {
6771 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6774 conv = MONO_MARSHAL_CONV_INVALID;
6776 mono_marshal_load_type_info (eklass);
6779 esize = sizeof (gpointer);
6781 esize = mono_class_native_size (eklass, NULL);
6783 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6786 mono_mb_emit_ldloc (mb, conv_arg);
6787 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6789 mono_mb_emit_ldarg (mb, argnum);
6790 mono_mb_emit_stloc (mb, dest_ptr);
6792 if (eklass->blittable) {
6794 mono_mb_emit_ldarg (mb, argnum);
6796 mono_mb_emit_ldloc (mb, conv_arg);
6797 mono_mb_emit_byte (mb, CEE_CONV_I);
6798 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6799 mono_mb_emit_byte (mb, CEE_ADD);
6801 mono_mb_emit_ldloc (mb, conv_arg);
6802 mono_mb_emit_byte (mb, CEE_LDLEN);
6803 mono_mb_emit_icon (mb, esize);
6804 mono_mb_emit_byte (mb, CEE_MUL);
6805 mono_mb_emit_byte (mb, CEE_PREFIX1);
6806 mono_mb_emit_byte (mb, CEE_CPBLK);
6810 /* Emit marshalling loop */
6811 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6812 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6813 mono_mb_emit_stloc (mb, index_var);
6814 label2 = mono_mb_get_label (mb);
6815 mono_mb_emit_ldloc (mb, index_var);
6816 mono_mb_emit_ldloc (mb, conv_arg);
6817 mono_mb_emit_byte (mb, CEE_LDLEN);
6818 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6820 /* Emit marshalling code */
6823 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6826 mono_mb_emit_ldloc (mb, dest_ptr);
6829 mono_mb_emit_ldloc (mb, conv_arg);
6830 mono_mb_emit_ldloc (mb, index_var);
6832 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6834 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6835 mono_mb_emit_byte (mb, stind_op);
6838 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6839 mono_mb_emit_exception_marshal_directive (mb, msg);
6843 mono_mb_emit_add_to_local (mb, index_var, 1);
6844 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6846 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6848 mono_mb_patch_branch (mb, label1);
6849 mono_mb_patch_branch (mb, label3);
6853 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6855 guint32 label1, label2, label3;
6856 int index_var, src, dest, esize;
6857 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6858 gboolean is_string = FALSE;
6860 g_assert (!t->byref);
6862 eklass = klass->element_class;
6864 mono_marshal_load_type_info (eklass);
6866 if (eklass == mono_defaults.string_class) {
6868 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6871 g_assert_not_reached ();
6875 esize = sizeof (gpointer);
6876 else if (eklass == mono_defaults.char_class)
6877 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6879 esize = mono_class_native_size (eklass, NULL);
6881 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6882 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6884 mono_mb_emit_stloc (mb, src);
6885 mono_mb_emit_ldloc (mb, src);
6886 mono_mb_emit_stloc (mb, 3);
6888 /* Check for null */
6889 mono_mb_emit_ldloc (mb, src);
6890 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6892 /* Allocate native array */
6893 mono_mb_emit_icon (mb, esize);
6894 mono_mb_emit_ldloc (mb, src);
6895 mono_mb_emit_byte (mb, CEE_LDLEN);
6897 if (eklass == mono_defaults.string_class) {
6898 /* Make the array bigger for the terminating null */
6899 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6900 mono_mb_emit_byte (mb, CEE_ADD);
6902 mono_mb_emit_byte (mb, CEE_MUL);
6903 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6904 mono_mb_emit_stloc (mb, dest);
6905 mono_mb_emit_ldloc (mb, dest);
6906 mono_mb_emit_stloc (mb, 3);
6908 /* Emit marshalling loop */
6909 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6910 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6911 mono_mb_emit_stloc (mb, index_var);
6912 label2 = mono_mb_get_label (mb);
6913 mono_mb_emit_ldloc (mb, index_var);
6914 mono_mb_emit_ldloc (mb, src);
6915 mono_mb_emit_byte (mb, CEE_LDLEN);
6916 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6918 /* Emit marshalling code */
6921 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6924 mono_mb_emit_ldloc (mb, dest);
6927 mono_mb_emit_ldloc (mb, src);
6928 mono_mb_emit_ldloc (mb, index_var);
6930 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6932 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6933 mono_mb_emit_byte (mb, stind_op);
6936 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6937 mono_mb_emit_exception_marshal_directive (mb, msg);
6941 mono_mb_emit_add_to_local (mb, index_var, 1);
6942 mono_mb_emit_add_to_local (mb, dest, esize);
6944 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6946 mono_mb_patch_branch (mb, label3);
6947 mono_mb_patch_branch (mb, label1);
6951 g_assert_not_reached ();
6958 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6961 return &mono_defaults.int32_class->byval_arg;
6963 switch (spec->native) {
6964 case MONO_NATIVE_I1:
6965 case MONO_NATIVE_U1:
6966 return &mono_defaults.byte_class->byval_arg;
6967 case MONO_NATIVE_VARIANTBOOL:
6968 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6969 return &mono_defaults.int16_class->byval_arg;
6970 case MONO_NATIVE_BOOLEAN:
6971 return &mono_defaults.int32_class->byval_arg;
6973 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6974 return &mono_defaults.int32_class->byval_arg;
6980 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6982 MonoClass* conv_arg_class = mono_defaults.int32_class;
6984 switch (spec->native) {
6985 case MONO_NATIVE_I1:
6986 case MONO_NATIVE_U1:
6987 conv_arg_class = mono_defaults.byte_class;
6988 if (ldop) *ldop = CEE_LDIND_I1;
6990 case MONO_NATIVE_VARIANTBOOL:
6991 conv_arg_class = mono_defaults.int16_class;
6992 if (ldop) *ldop = CEE_LDIND_I2;
6994 case MONO_NATIVE_BOOLEAN:
6997 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7000 return conv_arg_class;
7004 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7005 MonoMarshalSpec *spec,
7006 int conv_arg, MonoType **conv_arg_type,
7007 MarshalAction action)
7011 case MARSHAL_ACTION_CONV_IN:
7013 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7015 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
7018 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7019 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
7021 *conv_arg_type = &conv_arg_class->this_arg;
7023 *conv_arg_type = &conv_arg_class->byval_arg;
7029 MonoMethodBuilder *mb = m->mb;
7032 case MARSHAL_ACTION_CONV_IN: {
7033 MonoType *local_type;
7035 guint8 ldc_op = CEE_LDC_I4_1;
7037 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7039 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7041 *conv_arg_type = local_type;
7042 conv_arg = mono_mb_add_local (mb, local_type);
7044 mono_mb_emit_ldarg (mb, argnum);
7046 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7047 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7048 mono_mb_emit_byte (mb, ldc_op);
7049 mono_mb_emit_stloc (mb, conv_arg);
7050 mono_mb_patch_branch (mb, label_false);
7055 case MARSHAL_ACTION_CONV_OUT:
7057 int label_false, label_end;
7061 mono_mb_emit_ldarg (mb, argnum);
7062 mono_mb_emit_ldloc (mb, conv_arg);
7064 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7065 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7067 label_end = mono_mb_emit_branch (mb, CEE_BR);
7068 mono_mb_patch_branch (mb, label_false);
7069 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7070 mono_mb_patch_branch (mb, label_end);
7072 mono_mb_emit_byte (mb, CEE_STIND_I1);
7076 case MARSHAL_ACTION_PUSH:
7078 mono_mb_emit_ldloc_addr (mb, conv_arg);
7080 mono_mb_emit_ldloc (mb, conv_arg);
7082 mono_mb_emit_ldarg (mb, argnum);
7085 case MARSHAL_ACTION_CONV_RESULT:
7086 /* maybe we need to make sure that it fits within 8 bits */
7087 mono_mb_emit_stloc (mb, 3);
7090 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7091 MonoClass* conv_arg_class = mono_defaults.int32_class;
7092 guint8 ldop = CEE_LDIND_I4;
7093 int label_null, label_false;
7095 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7096 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7099 *conv_arg_type = &conv_arg_class->this_arg;
7101 *conv_arg_type = &conv_arg_class->byval_arg;
7104 mono_mb_emit_ldarg (mb, argnum);
7108 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7109 mono_mb_emit_ldarg (mb, argnum);
7110 mono_mb_emit_byte (mb, ldop);
7114 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7115 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7116 mono_mb_emit_stloc (mb, conv_arg);
7117 mono_mb_patch_branch (mb, label_false);
7120 mono_mb_patch_branch (mb, label_null);
7124 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7125 guint8 stop = CEE_STIND_I4;
7126 guint8 ldc_op = CEE_LDC_I4_1;
7127 int label_null,label_false, label_end;;
7132 switch (spec->native) {
7133 case MONO_NATIVE_I1:
7134 case MONO_NATIVE_U1:
7135 stop = CEE_STIND_I1;
7137 case MONO_NATIVE_VARIANTBOOL:
7138 stop = CEE_STIND_I2;
7139 ldc_op = CEE_LDC_I4_M1;
7147 mono_mb_emit_ldarg (mb, argnum);
7148 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7150 mono_mb_emit_ldarg (mb, argnum);
7151 mono_mb_emit_ldloc (mb, conv_arg);
7153 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7154 mono_mb_emit_byte (mb, ldc_op);
7155 label_end = mono_mb_emit_branch (mb, CEE_BR);
7157 mono_mb_patch_branch (mb, label_false);
7158 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7159 mono_mb_patch_branch (mb, label_end);
7161 mono_mb_emit_byte (mb, stop);
7162 mono_mb_patch_branch (mb, label_null);
7167 g_assert_not_reached ();
7174 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7175 MonoMarshalSpec *spec, int conv_arg,
7176 MonoType **conv_arg_type, MarshalAction action)
7179 MonoMethodBuilder *mb = m->mb;
7182 case MARSHAL_ACTION_CONV_IN:
7183 /* MS seems to allow this in some cases, ie. bxc #158 */
7185 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7186 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7187 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7192 case MARSHAL_ACTION_PUSH:
7193 mono_mb_emit_ldarg (mb, argnum);
7196 case MARSHAL_ACTION_CONV_RESULT:
7197 /* no conversions necessary */
7198 mono_mb_emit_stloc (mb, 3);
7209 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7210 MonoMarshalSpec *spec, int conv_arg,
7211 MonoType **conv_arg_type, MarshalAction action)
7214 MonoMethodBuilder *mb = m->mb;
7217 case MARSHAL_ACTION_PUSH:
7218 /* fixme: dont know how to marshal that. We cant simply
7219 * convert it to a one byte UTF8 character, because an
7220 * unicode character may need more that one byte in UTF8 */
7221 mono_mb_emit_ldarg (mb, argnum);
7224 case MARSHAL_ACTION_CONV_RESULT:
7225 /* fixme: we need conversions here */
7226 mono_mb_emit_stloc (mb, 3);
7237 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7238 MonoMarshalSpec *spec, int conv_arg,
7239 MonoType **conv_arg_type, MarshalAction action)
7242 MonoMethodBuilder *mb = m->mb;
7245 case MARSHAL_ACTION_PUSH:
7246 mono_mb_emit_ldarg (mb, argnum);
7249 case MARSHAL_ACTION_CONV_RESULT:
7250 /* no conversions necessary */
7251 mono_mb_emit_stloc (mb, 3);
7262 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7263 MonoMarshalSpec *spec, int conv_arg,
7264 MonoType **conv_arg_type, MarshalAction action)
7266 /* Ensure that we have marshalling info for this param */
7267 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7269 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7270 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7272 if (spec && spec->native == MONO_NATIVE_ASANY)
7273 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7276 case MONO_TYPE_VALUETYPE:
7277 if (t->data.klass == mono_defaults.handleref_class)
7278 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7280 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7281 case MONO_TYPE_STRING:
7282 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7283 case MONO_TYPE_CLASS:
7284 case MONO_TYPE_OBJECT:
7285 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7286 if (spec && spec->native == MONO_NATIVE_STRUCT)
7287 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7290 #if !defined(DISABLE_COM)
7291 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7292 spec->native == MONO_NATIVE_IDISPATCH ||
7293 spec->native == MONO_NATIVE_INTERFACE))
7294 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7295 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7296 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7297 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7298 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7301 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7302 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7303 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7305 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7306 case MONO_TYPE_ARRAY:
7307 case MONO_TYPE_SZARRAY:
7308 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7309 case MONO_TYPE_BOOLEAN:
7310 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7312 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7313 case MONO_TYPE_CHAR:
7314 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7327 case MONO_TYPE_FNPTR:
7328 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7329 case MONO_TYPE_GENERICINST:
7330 if (mono_type_generic_inst_is_valuetype (t))
7331 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7333 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7341 * mono_marshal_emit_native_wrapper:
7342 * @image: the image to use for looking up custom marshallers
7343 * @sig: The signature of the native function
7344 * @piinfo: Marshalling information
7345 * @mspecs: Marshalling information
7346 * @aot: whenever the created method will be compiled by the AOT compiler
7347 * @method: if non-NULL, the pinvoke method to call
7348 * @check_exceptions: Whenever to check for pending exceptions after the native call
7349 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7351 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7354 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)
7356 EmitMarshalContext m;
7357 MonoMethodSignature *csig;
7359 int i, argnum, *tmp_locals;
7360 int type, param_shift = 0;
7361 int coop_gc_stack_dummy, coop_gc_var;
7363 memset (&m, 0, sizeof (m));
7368 /* we copy the signature, so that we can set pinvoke to 0 */
7370 /* The function address is passed as the first argument */
7371 g_assert (!sig->hasthis);
7374 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7382 /* we allocate local for use with emit_struct_conv() */
7383 /* allocate local 0 (pointer) src_ptr */
7384 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7385 /* allocate local 1 (pointer) dst_ptr */
7386 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7387 /* allocate local 2 (boolean) delete_old */
7388 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7390 /* delete_old = FALSE */
7391 mono_mb_emit_icon (mb, 0);
7392 mono_mb_emit_stloc (mb, 2);
7394 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7395 /* allocate local 3 to store the return value */
7396 mono_mb_add_local (mb, sig->ret);
7399 if (mono_threads_is_coop_enabled ()) {
7400 /* local 4, dummy local used to get a stack address for suspend funcs */
7401 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7402 /* local 5, the local to be used when calling the suspend funcs */
7403 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7407 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7409 * ret = method (...);
7411 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7418 if (MONO_TYPE_ISSTRUCT (sig->ret))
7419 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7421 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7422 /* Return type custom marshaling */
7424 * Since we can't determine the return type of the unmanaged function,
7425 * we assume it returns a pointer, and pass that pointer to
7426 * MarshalNativeToManaged.
7428 csig->ret = &mono_defaults.int_class->byval_arg;
7431 /* we first do all conversions */
7432 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7433 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7435 for (i = 0; i < sig->param_count; i ++) {
7436 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7439 // In coop mode need to register blocking state during native call
7440 if (mono_threads_is_coop_enabled ()) {
7441 // Perform an extra, early lookup of the function address, so any exceptions
7442 // potentially resulting from the lookup occur before entering blocking mode.
7443 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7444 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7445 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7446 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7449 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7450 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7451 mono_mb_emit_stloc (mb, coop_gc_var);
7454 /* push all arguments */
7457 mono_mb_emit_byte (mb, CEE_LDARG_0);
7459 for (i = 0; i < sig->param_count; i++) {
7460 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7463 /* call the native method */
7465 mono_mb_emit_byte (mb, CEE_LDARG_0);
7466 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7467 mono_mb_emit_byte (mb, CEE_LDIND_I);
7468 mono_mb_emit_calli (mb, csig);
7469 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7471 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7473 g_assert_not_reached ();
7477 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7478 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7479 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7480 mono_mb_emit_calli (mb, csig);
7482 mono_mb_emit_native_call (mb, csig, func);
7486 /* Set LastError if needed */
7487 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7490 static MonoMethodSignature *get_last_error_sig = NULL;
7491 if (!get_last_error_sig) {
7492 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7493 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7494 get_last_error_sig->pinvoke = 1;
7498 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7499 * clobber its value.
7501 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7502 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7504 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7505 mono_mb_emit_byte (mb, CEE_MONO_GET_LAST_ERROR);
7506 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7509 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7513 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7514 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7515 mono_class_init (klass);
7516 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7517 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7518 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7519 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7520 mono_mb_emit_stloc (mb, m.vtaddr_var);
7524 /* Unblock before converting the result, since that can involve calls into the runtime */
7525 if (mono_threads_is_coop_enabled ()) {
7526 mono_mb_emit_ldloc (mb, coop_gc_var);
7527 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7528 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7531 /* convert the result */
7532 if (!sig->ret->byref) {
7533 MonoMarshalSpec *spec = mspecs [0];
7534 type = sig->ret->type;
7536 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7537 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7541 case MONO_TYPE_VOID:
7543 case MONO_TYPE_VALUETYPE:
7544 klass = sig->ret->data.klass;
7545 if (klass->enumtype) {
7546 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7549 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7563 case MONO_TYPE_FNPTR:
7564 case MONO_TYPE_STRING:
7565 case MONO_TYPE_CLASS:
7566 case MONO_TYPE_OBJECT:
7567 case MONO_TYPE_BOOLEAN:
7568 case MONO_TYPE_ARRAY:
7569 case MONO_TYPE_SZARRAY:
7570 case MONO_TYPE_CHAR:
7572 case MONO_TYPE_GENERICINST:
7573 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7575 case MONO_TYPE_TYPEDBYREF:
7577 g_warning ("return type 0x%02x unknown", sig->ret->type);
7578 g_assert_not_reached ();
7582 mono_mb_emit_stloc (mb, 3);
7586 * Need to call this after converting the result since MONO_VTADDR needs
7587 * to be adjacent to the call instruction.
7589 if (check_exceptions)
7590 emit_thread_interrupt_checkpoint (mb);
7592 /* we need to convert byref arguments back and free string arrays */
7593 for (i = 0; i < sig->param_count; i++) {
7594 MonoType *t = sig->params [i];
7595 MonoMarshalSpec *spec = mspecs [i + 1];
7597 argnum = i + param_shift;
7599 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7600 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7605 case MONO_TYPE_STRING:
7606 case MONO_TYPE_VALUETYPE:
7607 case MONO_TYPE_CLASS:
7608 case MONO_TYPE_OBJECT:
7609 case MONO_TYPE_SZARRAY:
7610 case MONO_TYPE_BOOLEAN:
7611 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7618 if (!MONO_TYPE_IS_VOID(sig->ret))
7619 mono_mb_emit_ldloc (mb, 3);
7621 mono_mb_emit_byte (mb, CEE_RET);
7623 #endif /* DISABLE_JIT */
7626 * mono_marshal_get_native_wrapper:
7627 * @method: The MonoMethod to wrap.
7628 * @check_exceptions: Whenever to check for pending exceptions
7630 * generates IL code for the pinvoke wrapper (the generated method
7631 * calls the unmanaged code in piinfo->addr)
7634 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7636 MonoMethodSignature *sig, *csig;
7637 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7638 MonoMethodBuilder *mb;
7639 MonoMarshalSpec **mspecs;
7642 gboolean pinvoke = FALSE;
7645 const char *exc_class = "MissingMethodException";
7646 const char *exc_arg = NULL;
7649 g_assert (method != NULL);
7650 g_assert (mono_method_signature (method)->pinvoke);
7652 GHashTable **cache_ptr;
7655 if (check_exceptions)
7656 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7658 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7660 if (check_exceptions)
7661 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7663 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7666 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7668 if ((res = mono_marshal_find_in_cache (cache, method)))
7671 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7672 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7676 return mono_cominterop_get_native_wrapper (method);
7678 g_assert_not_reached ();
7682 sig = mono_method_signature (method);
7684 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7685 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7688 if (!piinfo->addr) {
7690 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7691 exc_arg = "Method contains unsupported native code";
7693 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7695 piinfo->addr = mono_lookup_internal_call (method);
7699 /* hack - redirect certain string constructors to CreateString */
7700 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7701 g_assert (!pinvoke);
7702 g_assert (method->string_ctor);
7703 g_assert (sig->hasthis);
7705 /* CreateString returns a value */
7706 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7707 csig->ret = &mono_defaults.string_class->byval_arg;
7711 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7712 if (!strcmp ("CreateString", res->name) &&
7713 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7716 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7717 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7719 /* create a wrapper to preserve .ctor in stack trace */
7720 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7723 mono_mb_emit_byte (mb, CEE_LDARG_0);
7724 for (i = 1; i <= csig->param_count; i++)
7725 mono_mb_emit_ldarg (mb, i);
7726 mono_mb_emit_managed_call (mb, res, NULL);
7727 mono_mb_emit_byte (mb, CEE_RET);
7730 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7731 info->d.string_ctor.method = method;
7733 /* use native_wrapper_cache because internal calls are looked up there */
7734 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7735 csig->param_count + 1, info, NULL);
7742 /* exception will be thrown */
7743 piinfo->addr = NULL;
7744 g_warning ("cannot find CreateString for .ctor");
7747 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7749 mb->method->save_lmf = 1;
7752 * In AOT mode and embedding scenarios, it is possible that the icall is not
7753 * registered in the runtime doing the AOT compilation.
7755 if (!piinfo->addr && !aot) {
7757 mono_mb_emit_exception (mb, exc_class, exc_arg);
7759 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7760 info->d.managed_to_native.method = method;
7762 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7764 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7765 csig->param_count + 16, info, NULL);
7771 /* internal calls: we simply push all arguments and call the method (no conversions) */
7772 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7774 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7776 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7778 //printf ("%s\n", mono_method_full_name (method, 1));
7780 /* hack - string constructors returns a value */
7781 if (method->string_ctor)
7782 csig->ret = &mono_defaults.string_class->byval_arg;
7786 MonoClass *handle_stack_mark_class;
7787 MonoClass *error_class;
7788 int thread_info_var = -1, stack_mark_var = -1, error_var = -1;
7789 MonoMethodSignature *call_sig = csig;
7790 gboolean uses_handles = FALSE;
7791 (void) mono_lookup_internal_call_full (method, &uses_handles);
7794 /* If it uses handles and MonoError, it had better check exceptions */
7795 g_assert (!uses_handles || check_exceptions);
7798 MonoMethodSignature *ret;
7800 /* Add a MonoError argument */
7801 // FIXME: The stuff from mono_metadata_signature_dup_internal_with_padding ()
7802 ret = mono_metadata_signature_alloc (method->klass->image, csig->param_count + 1);
7804 ret->param_count = csig->param_count + 1;
7805 ret->ret = csig->ret;
7806 for (int i = 0; i < csig->param_count; ++i) {
7807 // FIXME: TODO implement handle wrapping for out and inout params.
7808 g_assert (!mono_signature_param_is_out (csig, i));
7809 ret->params [i] = csig->params [i];
7811 ret->params [csig->param_count] = &mono_get_intptr_class ()->byval_arg;
7816 handle_stack_mark_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/HandleStackMark");
7817 error_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/MonoError");
7819 thread_info_var = mono_mb_add_local (mb, &mono_get_intptr_class ()->byval_arg);
7820 stack_mark_var = mono_mb_add_local (mb, &handle_stack_mark_class->byval_arg);
7821 error_var = mono_mb_add_local (mb, &error_class->byval_arg);
7823 // FIXME: Change csig so it passes a handle not an objref
7830 * Add a null check since public icalls can be called with 'call' which
7831 * does no such check.
7833 mono_mb_emit_byte (mb, CEE_LDARG_0);
7834 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7835 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7836 mono_mb_patch_branch (mb, pos);
7840 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
7841 mono_mb_emit_ldloc_addr (mb, error_var);
7842 mono_mb_emit_icall (mb, mono_icall_start);
7843 mono_mb_emit_stloc (mb, thread_info_var);
7846 mono_mb_emit_byte (mb, CEE_LDARG_0);
7847 mono_mb_emit_icall (mb, mono_handle_new);
7849 for (i = 0; i < sig->param_count; i++) {
7850 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7851 if (MONO_TYPE_IS_REFERENCE (sig->params [i])) {
7852 mono_mb_emit_icall (mb, mono_handle_new);
7855 mono_mb_emit_ldloc_addr (mb, error_var);
7858 mono_mb_emit_byte (mb, CEE_LDARG_0);
7859 for (i = 0; i < sig->param_count; i++)
7860 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7864 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7865 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7866 mono_mb_emit_calli (mb, call_sig);
7868 g_assert (piinfo->addr);
7869 mono_mb_emit_native_call (mb, call_sig, piinfo->addr);
7873 if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
7874 // if (ret != NULL_HANDLE) {
7875 // ret = MONO_HANDLE_RAW(ret)
7877 mono_mb_emit_byte (mb, CEE_DUP);
7878 int pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7879 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
7880 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7881 mono_mb_patch_branch (mb, pos);
7883 mono_mb_emit_ldloc (mb, thread_info_var);
7884 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
7885 mono_mb_emit_ldloc_addr (mb, error_var);
7886 mono_mb_emit_icall (mb, mono_icall_end);
7889 if (check_exceptions)
7890 emit_thread_interrupt_checkpoint (mb);
7891 mono_mb_emit_byte (mb, CEE_RET);
7893 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7894 info->d.managed_to_native.method = method;
7896 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7898 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7907 g_assert (piinfo->addr);
7910 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7911 mono_method_get_marshal_info (method, mspecs);
7913 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7915 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7916 info->d.managed_to_native.method = method;
7918 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7920 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7925 for (i = sig->param_count; i >= 0; i--)
7927 mono_metadata_free_marshal_spec (mspecs [i]);
7931 /* mono_method_print_code (res); */
7937 * mono_marshal_get_native_func_wrapper:
7938 * @image: The image to use for memory allocation and for looking up custom marshallers.
7939 * @sig: The signature of the function
7940 * @func: The native function to wrap
7942 * Returns a wrapper method around native functions, similar to the pinvoke
7946 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7947 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7949 MonoMethodSignature *csig;
7951 SignaturePointerPair key, *new_key;
7952 MonoMethodBuilder *mb;
7961 // Generic types are not safe to place in MonoImage caches.
7962 g_assert (!sig->is_inflated);
7964 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7965 if ((res = mono_marshal_find_in_cache (cache, &key)))
7968 name = g_strdup_printf ("wrapper_native_%p", func);
7969 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7970 mb->method->save_lmf = 1;
7973 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7976 csig = mono_metadata_signature_dup_full (image, sig);
7979 new_key = g_new (SignaturePointerPair,1);
7980 new_key->sig = csig;
7981 new_key->pointer = func;
7983 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7989 mono_marshal_set_wrapper_info (res, NULL);
7995 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7999 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
8001 MonoMethodSignature *sig, *csig;
8002 MonoMethodBuilder *mb;
8007 MonoMethodPInvoke mpiinfo;
8008 MonoMethodPInvoke *piinfo = &mpiinfo;
8009 MonoMarshalSpec **mspecs;
8010 MonoMethod *invoke = mono_get_delegate_invoke (klass);
8011 MonoImage *image = invoke->klass->image;
8014 // FIXME: include UnmanagedFunctionPointerAttribute info
8017 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
8019 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8021 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8024 memset (&mpiinfo, 0, sizeof (mpiinfo));
8025 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8027 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8028 mono_method_get_marshal_info (invoke, mspecs);
8029 /* Freed below so don't alloc from mempool */
8030 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8033 name = g_strdup_printf ("wrapper_aot_native");
8034 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8035 mb->method->save_lmf = 1;
8038 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8041 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8042 info->d.managed_to_native.method = invoke;
8044 g_assert (!sig->hasthis);
8045 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
8047 res = mono_mb_create_and_cache_full (cache, invoke,
8048 mb, csig, csig->param_count + 16,
8052 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8054 mono_metadata_free_marshal_spec (mspecs [i]);
8062 * mono_marshal_emit_managed_wrapper:
8064 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8065 * the delegate which wraps the managed method to be called. For closed delegates,
8066 * it could have fewer parameters than the method it wraps.
8067 * THIS_LOC is the memory location where the target of the delegate is stored.
8070 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8073 MonoMethodSignature *sig, *csig;
8079 /* we first do all conversions */
8080 for (i = 0; i < sig->param_count; i ++) {
8081 MonoType *t = sig->params [i];
8084 case MONO_TYPE_OBJECT:
8085 case MONO_TYPE_CLASS:
8086 case MONO_TYPE_VALUETYPE:
8087 case MONO_TYPE_ARRAY:
8088 case MONO_TYPE_SZARRAY:
8089 case MONO_TYPE_STRING:
8090 case MONO_TYPE_BOOLEAN:
8091 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8095 if (!sig->ret->byref) {
8096 switch (sig->ret->type) {
8097 case MONO_TYPE_STRING:
8098 csig->ret = &mono_defaults.int_class->byval_arg;
8105 MonoMethodSignature *sig, *csig;
8106 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
8107 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
8108 int leave_try_pos, leave_catch_pos, ex_m1_pos;
8109 gboolean closed = FALSE;
8114 /* allocate local 0 (pointer) src_ptr */
8115 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8116 /* allocate local 1 (pointer) dst_ptr */
8117 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8118 /* allocate local 2 (boolean) delete_old */
8119 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8121 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8122 /* Closed delegate */
8123 g_assert (sig->param_count == invoke_sig->param_count + 1);
8125 /* Use a new signature without the first argument */
8126 sig = mono_metadata_signature_dup (sig);
8127 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8128 sig->param_count --;
8131 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8132 /* allocate local 3 to store the return value */
8133 mono_mb_add_local (mb, sig->ret);
8136 if (MONO_TYPE_ISSTRUCT (sig->ret))
8137 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8139 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8140 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8142 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8143 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8148 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8149 * mono_threads_attach_coop ();
8153 * ret = method (...);
8154 * } catch (Exception e) {
8155 * ex = mono_gchandle_new (e, false);
8157 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8158 * mono_threads_detach_coop ();
8161 * mono_marshal_ftnptr_eh_callback (ex);
8167 clauses = g_new0 (MonoExceptionClause, 2);
8169 clause_catch = &clauses [0];
8170 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8171 clause_catch->data.catch_class = mono_defaults.exception_class;
8173 clause_finally = &clauses [1];
8174 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8176 mono_mb_emit_icon (mb, 0);
8177 mono_mb_emit_stloc (mb, 2);
8179 mono_mb_emit_icon (mb, -1);
8180 mono_mb_emit_byte (mb, CEE_CONV_U4);
8181 mono_mb_emit_stloc (mb, ex_local);
8184 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8186 if (!mono_threads_is_coop_enabled ()) {
8187 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8188 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8190 /* mono_threads_attach_coop (); */
8191 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8192 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8193 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8194 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8195 mono_mb_emit_stloc (mb, attach_cookie_local);
8198 /* <interrupt check> */
8199 emit_thread_interrupt_checkpoint (mb);
8201 /* we first do all conversions */
8202 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8203 for (i = 0; i < sig->param_count; i ++) {
8204 MonoType *t = sig->params [i];
8207 case MONO_TYPE_OBJECT:
8208 case MONO_TYPE_CLASS:
8209 case MONO_TYPE_VALUETYPE:
8210 case MONO_TYPE_ARRAY:
8211 case MONO_TYPE_SZARRAY:
8212 case MONO_TYPE_STRING:
8213 case MONO_TYPE_BOOLEAN:
8214 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8224 if (target_handle) {
8225 mono_mb_emit_icon (mb, (gint32)target_handle);
8226 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8229 g_assert_not_reached ();
8231 } else if (closed) {
8232 mono_mb_emit_icon (mb, (gint32)target_handle);
8233 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8236 for (i = 0; i < sig->param_count; i++) {
8237 MonoType *t = sig->params [i];
8239 if (tmp_locals [i]) {
8241 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8243 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8246 mono_mb_emit_ldarg (mb, i);
8249 /* ret = method (...) */
8250 mono_mb_emit_managed_call (mb, method, NULL);
8252 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8253 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8254 mono_class_init (klass);
8255 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8256 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8257 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8258 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8259 mono_mb_emit_stloc (mb, m->vtaddr_var);
8263 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8264 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8265 } else if (!sig->ret->byref) {
8266 switch (sig->ret->type) {
8267 case MONO_TYPE_VOID:
8269 case MONO_TYPE_BOOLEAN:
8272 case MONO_TYPE_CHAR:
8284 case MONO_TYPE_OBJECT:
8285 mono_mb_emit_stloc (mb, 3);
8287 case MONO_TYPE_STRING:
8288 csig->ret = &mono_defaults.int_class->byval_arg;
8289 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8291 case MONO_TYPE_VALUETYPE:
8292 case MONO_TYPE_CLASS:
8293 case MONO_TYPE_SZARRAY:
8294 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8297 g_warning ("return type 0x%02x unknown", sig->ret->type);
8298 g_assert_not_reached ();
8301 mono_mb_emit_stloc (mb, 3);
8304 /* Convert byref arguments back */
8305 for (i = 0; i < sig->param_count; i ++) {
8306 MonoType *t = sig->params [i];
8307 MonoMarshalSpec *spec = mspecs [i + 1];
8309 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8310 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8312 else if (t->byref) {
8314 case MONO_TYPE_CLASS:
8315 case MONO_TYPE_VALUETYPE:
8316 case MONO_TYPE_OBJECT:
8317 case MONO_TYPE_STRING:
8318 case MONO_TYPE_BOOLEAN:
8319 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8325 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8326 /* The [Out] information is encoded in the delegate signature */
8328 case MONO_TYPE_SZARRAY:
8329 case MONO_TYPE_CLASS:
8330 case MONO_TYPE_VALUETYPE:
8331 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8334 g_assert_not_reached ();
8339 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8343 /* catch (Exception e) { */
8344 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8345 clause_catch->handler_offset = mono_mb_get_label (mb);
8347 mono_mb_emit_stloc (mb, e_local);
8349 /* ex = mono_gchandle_new (e, false); */
8350 mono_mb_emit_ldloc (mb, e_local);
8351 mono_mb_emit_icon (mb, 0);
8352 mono_mb_emit_icall (mb, mono_gchandle_new);
8353 mono_mb_emit_stloc (mb, ex_local);
8355 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8358 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8361 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8362 clause_finally->handler_offset = mono_mb_get_label (mb);
8364 if (!mono_threads_is_coop_enabled ()) {
8365 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8366 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8368 /* mono_threads_detach_coop (); */
8369 mono_mb_emit_ldloc (mb, attach_cookie_local);
8370 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8371 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8375 mono_mb_emit_ldloc (mb, ex_local);
8376 mono_mb_emit_icon (mb, -1);
8377 mono_mb_emit_byte (mb, CEE_CONV_U4);
8378 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8380 /* mono_marshal_ftnptr_eh_callback (ex) */
8381 mono_mb_emit_ldloc (mb, ex_local);
8382 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8385 mono_mb_patch_branch (mb, ex_m1_pos);
8387 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8389 /* } [endfinally] */
8390 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8392 mono_mb_patch_branch (mb, leave_try_pos);
8393 mono_mb_patch_branch (mb, leave_catch_pos);
8396 if (m->retobj_var) {
8397 mono_mb_emit_ldloc (mb, m->retobj_var);
8398 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8399 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8402 if (!MONO_TYPE_IS_VOID(sig->ret))
8403 mono_mb_emit_ldloc (mb, 3);
8404 mono_mb_emit_byte (mb, CEE_RET);
8407 mono_mb_set_clauses (mb, 2, clauses);
8415 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8417 MonoMethodSignature *sig;
8422 * Under windows, delegates passed to native code must use the STDCALL
8423 * calling convention.
8425 csig->call_convention = MONO_CALL_STDCALL;
8428 sig = mono_method_signature (method);
8430 /* Change default calling convention if needed */
8431 /* Why is this a modopt ? */
8432 if (sig->ret && sig->ret->num_mods) {
8433 for (i = 0; i < sig->ret->num_mods; ++i) {
8435 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8436 g_assert (mono_error_ok (&error));
8437 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8438 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8439 csig->call_convention = MONO_CALL_C;
8440 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8441 csig->call_convention = MONO_CALL_STDCALL;
8442 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8443 csig->call_convention = MONO_CALL_FASTCALL;
8444 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8445 csig->call_convention = MONO_CALL_THISCALL;
8452 * generates IL code to call managed methods from unmanaged code
8453 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8456 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8459 MonoMethodSignature *sig, *csig, *invoke_sig;
8460 MonoMethodBuilder *mb;
8461 MonoMethod *res, *invoke;
8462 MonoMarshalSpec **mspecs;
8463 MonoMethodPInvoke piinfo;
8466 EmitMarshalContext m;
8468 g_assert (method != NULL);
8469 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8472 * FIXME: Should cache the method+delegate type pair, since the same method
8473 * could be called with different delegates, thus different marshalling
8476 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8478 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8481 invoke = mono_get_delegate_invoke (delegate_klass);
8482 invoke_sig = mono_method_signature (invoke);
8484 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8485 mono_method_get_marshal_info (invoke, mspecs);
8487 sig = mono_method_signature (method);
8489 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8491 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8492 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8494 /* we copy the signature, so that we can modify it */
8496 /* Need to free this later */
8497 csig = mono_metadata_signature_dup (invoke_sig);
8499 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8503 memset (&m, 0, sizeof (m));
8509 m.image = method->klass->image;
8511 mono_marshal_set_callconv_from_modopt (invoke, csig);
8513 /* The attribute is only available in Net 2.0 */
8514 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8515 MonoCustomAttrInfo *cinfo;
8516 MonoCustomAttrEntry *attr;
8519 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8520 * contents of the attribute without constructing it, as that might not be
8521 * possible when running in cross-compiling mode.
8523 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8524 mono_error_assert_ok (&error);
8527 for (i = 0; i < cinfo->num_attrs; ++i) {
8528 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8529 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8530 attr = &cinfo->attrs [i];
8536 MonoArray *typed_args, *named_args;
8537 CattrNamedArg *arginfo;
8541 MonoBoolean set_last_error = 0;
8544 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8545 g_assert (mono_error_ok (&error));
8546 g_assert (mono_array_length (typed_args) == 1);
8549 o = mono_array_get (typed_args, MonoObject*, 0);
8550 call_conv = *(gint32*)mono_object_unbox (o);
8553 for (i = 0; i < mono_array_length (named_args); ++i) {
8554 CattrNamedArg *narg = &arginfo [i];
8556 o = mono_array_get (named_args, MonoObject*, i);
8558 g_assert (narg->field);
8559 if (!strcmp (narg->field->name, "CharSet")) {
8560 charset = *(gint32*)mono_object_unbox (o);
8561 } else if (!strcmp (narg->field->name, "SetLastError")) {
8562 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8563 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8564 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8565 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8566 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8568 g_assert_not_reached ();
8574 memset (&piinfo, 0, sizeof (piinfo));
8576 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8578 csig->call_convention = call_conv - 1;
8581 if (cinfo && !cinfo->cached)
8582 mono_custom_attrs_free (cinfo);
8585 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8587 if (!target_handle) {
8590 // FIXME: Associate it with the method+delegate_klass pair
8591 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8592 info->d.native_to_managed.method = method;
8593 info->d.native_to_managed.klass = delegate_klass;
8595 res = mono_mb_create_and_cache_full (cache, method,
8596 mb, csig, sig->param_count + 16,
8602 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8606 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8608 mono_metadata_free_marshal_spec (mspecs [i]);
8611 /* mono_method_print_code (res); */
8617 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8621 MonoMethodSignature *sig;
8622 MonoMethodBuilder *mb;
8627 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8629 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8632 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8633 MonoMethodSignature *csig;
8634 MonoMarshalSpec **mspecs;
8635 EmitMarshalContext m;
8637 sig = mono_method_signature (method);
8638 g_assert (!sig->hasthis);
8640 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8641 mono_method_get_marshal_info (method, mspecs);
8643 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8644 csig = mono_metadata_signature_dup_full (image, sig);
8648 memset (&m, 0, sizeof (m));
8656 mono_marshal_set_callconv_from_modopt (method, csig);
8658 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8660 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8665 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8668 for (i = sig->param_count; i >= 0; i--)
8670 mono_metadata_free_marshal_spec (mspecs [i]);
8673 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8674 mono_error_assert_ok (&error);
8675 return compiled_ptr;
8678 sig = mono_method_signature (method);
8679 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8681 param_count = sig->param_count + sig->hasthis;
8683 for (i = 0; i < param_count; i++)
8684 mono_mb_emit_ldarg (mb, i);
8686 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8687 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8689 mono_mb_emit_op (mb, CEE_CALL, method);
8690 mono_mb_emit_byte (mb, CEE_RET);
8695 method = mono_mb_create (mb, sig, param_count, NULL);
8698 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8699 mono_error_assert_ok (&error);
8700 return compiled_ptr;
8706 * The code directly following this is the cache hit, value positive branch
8708 * This function takes a new method builder with 0 locals and adds two locals
8709 * to create multiple out-branches and the fall through state of having the object
8710 * on the stack after a cache miss
8713 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8714 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8715 MonoMethodBuilder *mb)
8719 /* allocate local 0 (pointer) obj_vtable */
8720 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8721 /* allocate local 1 (pointer) cached_vtable */
8722 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8725 mono_mb_emit_ldarg (mb, obj_arg_position);
8726 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8728 /*obj_vtable = obj->vtable;*/
8729 mono_mb_emit_ldarg (mb, obj_arg_position);
8730 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8731 mono_mb_emit_byte (mb, CEE_LDIND_I);
8732 mono_mb_emit_stloc (mb, 0);
8734 /* cached_vtable = *cache*/
8735 mono_mb_emit_ldarg (mb, cache_arg_position);
8736 mono_mb_emit_byte (mb, CEE_LDIND_I);
8737 mono_mb_emit_stloc (mb, 1);
8739 mono_mb_emit_ldloc (mb, 1);
8740 mono_mb_emit_byte (mb, CEE_LDC_I4);
8741 mono_mb_emit_i4 (mb, ~0x1);
8742 mono_mb_emit_byte (mb, CEE_CONV_I);
8743 mono_mb_emit_byte (mb, CEE_AND);
8744 mono_mb_emit_ldloc (mb, 0);
8745 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8746 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8748 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8749 mono_mb_emit_ldloc (mb, 1);
8750 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8751 mono_mb_emit_byte (mb, CEE_CONV_U);
8752 mono_mb_emit_byte (mb, CEE_AND);
8753 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8754 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8757 mono_mb_patch_branch (mb, cache_miss_pos);
8760 mono_mb_emit_ldarg (mb, obj_arg_position);
8761 mono_mb_emit_ldarg (mb, class_arg_position);
8762 mono_mb_emit_ldarg (mb, cache_arg_position);
8763 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8766 #endif /* DISABLE_JIT */
8769 * This does the equivalent of mono_object_castclass_with_cache.
8772 mono_marshal_get_castclass_with_cache (void)
8774 static MonoMethod *cached;
8776 MonoMethodBuilder *mb;
8777 MonoMethodSignature *sig;
8778 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8781 const int obj_arg_position = 0;
8782 const int class_arg_position = 1;
8783 const int cache_arg_position = 2;
8788 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8789 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8790 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8791 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8792 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8793 sig->ret = &mono_defaults.object_class->byval_arg;
8797 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8798 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8799 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8802 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8803 mono_mb_emit_ldarg (mb, obj_arg_position);
8804 mono_mb_emit_byte (mb, CEE_RET);
8807 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8808 mono_mb_patch_branch (mb, invalid_cast_pos);
8809 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8812 mono_mb_patch_branch (mb, return_null_pos);
8813 mono_mb_emit_byte (mb, CEE_LDNULL);
8814 mono_mb_emit_byte (mb, CEE_RET);
8815 #endif /* DISABLE_JIT */
8817 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8818 res = mono_mb_create (mb, sig, 8, info);
8821 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8822 mono_free_method (res);
8823 mono_metadata_free_method_signature (sig);
8830 /* this is an icall */
8832 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8835 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8836 if (mono_error_set_pending_exception (&error))
8839 #ifndef DISABLE_REMOTING
8840 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8844 uintptr_t cache_update = (uintptr_t)obj->vtable;
8846 cache_update = cache_update | 0x1;
8848 *cache = cache_update;
8854 * This does the equivalent of mono_object_isinst_with_cache.
8857 mono_marshal_get_isinst_with_cache (void)
8859 static MonoMethod *cached;
8861 MonoMethodBuilder *mb;
8862 MonoMethodSignature *sig;
8863 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8866 const int obj_arg_position = 0;
8867 const int class_arg_position = 1;
8868 const int cache_arg_position = 2;
8873 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8874 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8876 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8878 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8880 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8881 sig->ret = &mono_defaults.object_class->byval_arg;
8885 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8886 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8887 // Return the object gotten via the slow path.
8888 mono_mb_emit_byte (mb, CEE_RET);
8891 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8892 mono_mb_patch_branch (mb, return_null_pos);
8893 mono_mb_emit_byte (mb, CEE_LDNULL);
8894 mono_mb_emit_byte (mb, CEE_RET);
8897 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8898 mono_mb_emit_ldarg (mb, obj_arg_position);
8899 mono_mb_emit_byte (mb, CEE_RET);
8902 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8903 res = mono_mb_create (mb, sig, 8, info);
8906 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8907 mono_free_method (res);
8908 mono_metadata_free_method_signature (sig);
8916 * mono_marshal_get_isinst:
8917 * @klass: the type of the field
8919 * This method generates a function which can be used to check if an object is
8920 * an instance of the given type, icluding the case where the object is a proxy.
8921 * The generated function has the following signature:
8922 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8925 mono_marshal_get_isinst (MonoClass *klass)
8927 static MonoMethodSignature *isint_sig = NULL;
8931 int pos_was_ok, pos_end;
8932 #ifndef DISABLE_REMOTING
8933 int pos_end2, pos_failed;
8936 MonoMethodBuilder *mb;
8938 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8939 if ((res = mono_marshal_find_in_cache (cache, klass)))
8943 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8944 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8945 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8946 isint_sig->pinvoke = 0;
8949 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8950 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8953 mb->method->save_lmf = 1;
8956 /* check if the object is a proxy that needs special cast */
8957 mono_mb_emit_ldarg (mb, 0);
8958 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8959 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8961 /* The result of MONO_CISINST can be:
8962 0) the type check succeeded
8963 1) the type check did not succeed
8964 2) a CanCastTo call is needed */
8965 #ifndef DISABLE_REMOTING
8966 mono_mb_emit_byte (mb, CEE_DUP);
8967 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8969 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8970 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8972 /* get the real proxy from the transparent proxy*/
8974 mono_mb_emit_ldarg (mb, 0);
8975 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8976 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8980 mono_mb_patch_branch (mb, pos_failed);
8981 mono_mb_emit_byte (mb, CEE_LDNULL);
8982 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8986 mono_mb_patch_branch (mb, pos_was_ok);
8987 mono_mb_emit_byte (mb, CEE_POP);
8988 mono_mb_emit_ldarg (mb, 0);
8992 mono_mb_patch_branch (mb, pos_end);
8993 mono_mb_patch_branch (mb, pos_end2);
8994 mono_mb_emit_byte (mb, CEE_RET);
8996 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9000 mono_mb_emit_byte (mb, CEE_LDNULL);
9001 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9005 mono_mb_patch_branch (mb, pos_was_ok);
9006 mono_mb_emit_ldarg (mb, 0);
9010 mono_mb_patch_branch (mb, pos_end);
9011 mono_mb_emit_byte (mb, CEE_RET);
9012 #endif /* DISABLE_REMOTING */
9013 #endif /* DISABLE_JIT */
9015 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9016 info->d.proxy.klass = klass;
9017 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
9024 * mono_marshal_get_castclass:
9025 * @klass: the type of the field
9027 * This method generates a function which can be used to cast an object to
9028 * an instance of the given type, icluding the case where the object is a proxy.
9029 * The generated function has the following signature:
9030 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9033 mono_marshal_get_castclass (MonoClass *klass)
9035 static MonoMethodSignature *castclass_sig = NULL;
9038 #ifndef DISABLE_REMOTING
9039 int pos_was_ok, pos_was_ok2;
9042 MonoMethodBuilder *mb;
9045 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9046 if ((res = mono_marshal_find_in_cache (cache, klass)))
9049 if (!castclass_sig) {
9050 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9051 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9052 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9053 castclass_sig->pinvoke = 0;
9056 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9057 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9060 mb->method->save_lmf = 1;
9063 /* check if the object is a proxy that needs special cast */
9064 mono_mb_emit_ldarg (mb, 0);
9065 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9066 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9068 /* The result of MONO_CCASTCLASS can be:
9069 0) the cast is valid
9070 1) cast of unknown proxy type
9071 or an exception if the cast is is invalid
9073 #ifndef DISABLE_REMOTING
9074 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9076 /* get the real proxy from the transparent proxy*/
9078 mono_mb_emit_ldarg (mb, 0);
9079 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9080 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9083 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9086 mono_mb_patch_branch (mb, pos_was_ok);
9087 mono_mb_patch_branch (mb, pos_was_ok2);
9089 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
9090 mono_mb_emit_byte (mb, CEE_POP);
9091 #endif /* DISABLE_REMOTING */
9093 mono_mb_emit_ldarg (mb, 0);
9096 mono_mb_emit_byte (mb, CEE_RET);
9097 #endif /* DISABLE_JIT */
9099 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9101 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
9109 * mono_marshal_get_struct_to_ptr:
9112 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9115 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9117 MonoMethodBuilder *mb;
9118 static MonoMethod *stoptr = NULL;
9122 g_assert (klass != NULL);
9124 mono_marshal_load_type_info (klass);
9126 if (klass->marshal_info->str_to_ptr)
9127 return klass->marshal_info->str_to_ptr;
9130 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9133 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9136 if (klass->blittable) {
9137 mono_mb_emit_byte (mb, CEE_LDARG_1);
9138 mono_mb_emit_byte (mb, CEE_LDARG_0);
9139 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9140 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9141 mono_mb_emit_byte (mb, CEE_PREFIX1);
9142 mono_mb_emit_byte (mb, CEE_CPBLK);
9145 /* allocate local 0 (pointer) src_ptr */
9146 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9147 /* allocate local 1 (pointer) dst_ptr */
9148 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9149 /* allocate local 2 (boolean) delete_old */
9150 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9151 mono_mb_emit_byte (mb, CEE_LDARG_2);
9152 mono_mb_emit_stloc (mb, 2);
9154 /* initialize src_ptr to point to the start of object data */
9155 mono_mb_emit_byte (mb, CEE_LDARG_0);
9156 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9157 mono_mb_emit_stloc (mb, 0);
9159 /* initialize dst_ptr */
9160 mono_mb_emit_byte (mb, CEE_LDARG_1);
9161 mono_mb_emit_stloc (mb, 1);
9163 emit_struct_conv (mb, klass, FALSE);
9166 mono_mb_emit_byte (mb, CEE_RET);
9168 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9169 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9172 mono_marshal_lock ();
9173 if (!klass->marshal_info->str_to_ptr)
9174 klass->marshal_info->str_to_ptr = res;
9176 res = klass->marshal_info->str_to_ptr;
9177 mono_marshal_unlock ();
9182 * mono_marshal_get_ptr_to_struct:
9185 * generates IL code for PtrToStructure (IntPtr src, object structure)
9188 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9190 MonoMethodBuilder *mb;
9191 static MonoMethodSignature *ptostr = NULL;
9195 g_assert (klass != NULL);
9197 mono_marshal_load_type_info (klass);
9199 if (klass->marshal_info->ptr_to_str)
9200 return klass->marshal_info->ptr_to_str;
9203 MonoMethodSignature *sig;
9205 /* Create the signature corresponding to
9206 static void PtrToStructure (IntPtr ptr, object structure);
9207 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9208 sig = mono_create_icall_signature ("void ptr object");
9209 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9211 mono_memory_barrier ();
9215 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9218 if (klass->blittable) {
9219 mono_mb_emit_byte (mb, CEE_LDARG_1);
9220 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9221 mono_mb_emit_byte (mb, CEE_LDARG_0);
9222 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9223 mono_mb_emit_byte (mb, CEE_PREFIX1);
9224 mono_mb_emit_byte (mb, CEE_CPBLK);
9227 /* allocate local 0 (pointer) src_ptr */
9228 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9229 /* allocate local 1 (pointer) dst_ptr */
9230 mono_mb_add_local (mb, &klass->this_arg);
9232 /* initialize src_ptr to point to the start of object data */
9233 mono_mb_emit_byte (mb, CEE_LDARG_0);
9234 mono_mb_emit_stloc (mb, 0);
9236 /* initialize dst_ptr */
9237 mono_mb_emit_byte (mb, CEE_LDARG_1);
9238 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9239 mono_mb_emit_stloc (mb, 1);
9241 emit_struct_conv (mb, klass, TRUE);
9244 mono_mb_emit_byte (mb, CEE_RET);
9246 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9247 res = mono_mb_create (mb, ptostr, 0, info);
9250 mono_marshal_lock ();
9251 if (!klass->marshal_info->ptr_to_str)
9252 klass->marshal_info->ptr_to_str = res;
9254 res = klass->marshal_info->ptr_to_str;
9255 mono_marshal_unlock ();
9260 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9261 * This is used to avoid infinite recursion since it is hard to determine where to
9262 * replace a method with its synchronized wrapper, and where not.
9263 * The runtime should execute METHOD instead of the wrapper.
9266 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9268 MonoMethodBuilder *mb;
9270 MonoMethodSignature *sig;
9272 MonoGenericContext *ctx = NULL;
9273 MonoGenericContainer *container = NULL;
9275 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9276 ctx = &((MonoMethodInflated*)method)->context;
9277 method = ((MonoMethodInflated*)method)->declaring;
9278 container = mono_method_get_generic_container (method);
9280 container = method->klass->generic_container;
9281 g_assert (container);
9284 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9286 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9287 mono_mb_emit_byte (mb, CEE_RET);
9289 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9291 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9292 info->d.synchronized_inner.method = method;
9293 res = mono_mb_create (mb, sig, 0, info);
9297 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9298 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9304 * generates IL code for the synchronized wrapper: the generated method
9305 * calls METHOD while locking 'this' or the parent type.
9308 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9310 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9311 MonoMethodSignature *sig;
9312 MonoExceptionClause *clause;
9313 MonoMethodBuilder *mb;
9317 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9318 MonoGenericContext *ctx = NULL;
9319 MonoMethod *orig_method = NULL;
9320 MonoGenericContainer *container = NULL;
9324 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9327 /* FIXME: Support generic methods too */
9328 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9329 orig_method = method;
9330 ctx = &((MonoMethodInflated*)method)->context;
9331 method = ((MonoMethodInflated*)method)->declaring;
9332 container = mono_method_get_generic_container (method);
9334 container = method->klass->generic_container;
9335 g_assert (container);
9342 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9343 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9347 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9348 if ((res = mono_marshal_find_in_cache (cache, method)))
9352 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9355 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9357 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9358 info->d.synchronized.method = method;
9361 mb->skip_visibility = 1;
9363 if (!MONO_TYPE_IS_VOID (sig->ret))
9364 ret_local = mono_mb_add_local (mb, sig->ret);
9367 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9368 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9370 /* This will throw the type load exception when the wrapper is compiled */
9371 mono_mb_emit_byte (mb, CEE_LDNULL);
9372 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9373 mono_mb_emit_byte (mb, CEE_POP);
9375 if (!MONO_TYPE_IS_VOID (sig->ret))
9376 mono_mb_emit_ldloc (mb, ret_local);
9377 mono_mb_emit_byte (mb, CEE_RET);
9380 res = mono_mb_create_and_cache_full (cache, method,
9381 mb, sig, sig->param_count + 16, info, NULL);
9389 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9390 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9392 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9393 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9396 mono_marshal_lock ();
9398 if (!enter_method) {
9399 MonoMethodDesc *desc;
9401 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9402 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9403 g_assert (enter_method);
9404 mono_method_desc_free (desc);
9406 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9407 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9408 g_assert (exit_method);
9409 mono_method_desc_free (desc);
9411 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9412 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9413 g_assert (gettypefromhandle_method);
9414 mono_method_desc_free (desc);
9417 mono_marshal_unlock ();
9420 /* Push this or the type object */
9421 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9422 /* We have special handling for this in the JIT */
9423 int index = mono_mb_add_data (mb, method->klass);
9424 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9425 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9426 mono_mb_emit_i4 (mb, index);
9428 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9431 mono_mb_emit_ldarg (mb, 0);
9432 mono_mb_emit_stloc (mb, this_local);
9434 /* Call Monitor::Enter() */
9435 mono_mb_emit_ldloc (mb, this_local);
9436 mono_mb_emit_ldloc_addr (mb, taken_local);
9437 mono_mb_emit_managed_call (mb, enter_method, NULL);
9439 clause->try_offset = mono_mb_get_label (mb);
9441 /* Call the method */
9443 mono_mb_emit_ldarg (mb, 0);
9444 for (i = 0; i < sig->param_count; i++)
9445 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9449 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9450 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9452 mono_mb_emit_managed_call (mb, method, NULL);
9455 if (!MONO_TYPE_IS_VOID (sig->ret))
9456 mono_mb_emit_stloc (mb, ret_local);
9458 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9460 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9461 clause->handler_offset = mono_mb_get_label (mb);
9463 /* Call Monitor::Exit() if needed */
9464 mono_mb_emit_ldloc (mb, taken_local);
9465 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9466 mono_mb_emit_ldloc (mb, this_local);
9467 mono_mb_emit_managed_call (mb, exit_method, NULL);
9468 mono_mb_patch_branch (mb, pos2);
9469 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9471 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9473 mono_mb_patch_branch (mb, pos);
9474 if (!MONO_TYPE_IS_VOID (sig->ret))
9475 mono_mb_emit_ldloc (mb, ret_local);
9476 mono_mb_emit_byte (mb, CEE_RET);
9478 mono_mb_set_clauses (mb, 1, clause);
9483 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9484 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9486 res = mono_mb_create_and_cache_full (cache, method,
9487 mb, sig, sig->param_count + 16, info, NULL);
9496 * the returned method calls 'method' unboxing the this argument
9499 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9501 MonoMethodSignature *sig = mono_method_signature (method);
9503 MonoMethodBuilder *mb;
9508 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9510 if ((res = mono_marshal_find_in_cache (cache, method)))
9513 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9515 g_assert (sig->hasthis);
9518 mono_mb_emit_ldarg (mb, 0);
9519 mono_mb_emit_icon (mb, sizeof (MonoObject));
9520 mono_mb_emit_byte (mb, CEE_ADD);
9521 for (i = 0; i < sig->param_count; ++i)
9522 mono_mb_emit_ldarg (mb, i + 1);
9523 mono_mb_emit_managed_call (mb, method, NULL);
9524 mono_mb_emit_byte (mb, CEE_RET);
9527 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9528 info->d.unbox.method = method;
9530 res = mono_mb_create_and_cache_full (cache, method,
9531 mb, sig, sig->param_count + 16, info, NULL);
9534 /* mono_method_print_code (res); */
9540 STELEMREF_OBJECT, /*no check at all*/
9541 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9542 STELEMREF_CLASS, /*only the klass->parents check*/
9543 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9544 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9545 STELEMREF_KIND_COUNT
9548 static const char *strelemref_wrapper_name[] = {
9549 "object", "sealed_class", "class", "interface", "complex"
9553 is_monomorphic_array (MonoClass *klass)
9555 MonoClass *element_class;
9556 if (klass->rank != 1)
9559 element_class = klass->element_class;
9560 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9564 get_virtual_stelemref_kind (MonoClass *element_class)
9566 if (element_class == mono_defaults.object_class)
9567 return STELEMREF_OBJECT;
9568 if (is_monomorphic_array (element_class))
9569 return STELEMREF_SEALED_CLASS;
9570 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9571 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9572 #ifdef COMPRESSED_INTERFACE_BITMAP
9573 return STELEMREF_COMPLEX;
9575 return STELEMREF_INTERFACE;
9577 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9578 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9579 return STELEMREF_COMPLEX;
9580 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9581 return STELEMREF_SEALED_CLASS;
9582 return STELEMREF_CLASS;
9588 load_array_element_address (MonoMethodBuilder *mb)
9590 mono_mb_emit_ldarg (mb, 0);
9591 mono_mb_emit_ldarg (mb, 1);
9592 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9596 load_array_class (MonoMethodBuilder *mb, int aklass)
9598 mono_mb_emit_ldarg (mb, 0);
9599 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9600 mono_mb_emit_byte (mb, CEE_LDIND_I);
9601 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9602 mono_mb_emit_byte (mb, CEE_LDIND_I);
9603 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9604 mono_mb_emit_byte (mb, CEE_LDIND_I);
9605 mono_mb_emit_stloc (mb, aklass);
9609 load_value_class (MonoMethodBuilder *mb, int vklass)
9611 mono_mb_emit_ldarg (mb, 2);
9612 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9613 mono_mb_emit_byte (mb, CEE_LDIND_I);
9614 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9615 mono_mb_emit_byte (mb, CEE_LDIND_I);
9616 mono_mb_emit_stloc (mb, vklass);
9622 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9624 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9625 printf ("slow vstore of %s\n", name);
9632 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9633 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9634 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9635 * - Add a case for arrays of arrays.
9638 get_virtual_stelemref_wrapper (int kind)
9640 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9641 static MonoMethodSignature *signature;
9642 MonoMethodBuilder *mb;
9645 const char *param_names [16];
9646 guint32 b1, b2, b3, b4;
9647 int aklass, vklass, vtable, uiid;
9648 int array_slot_addr;
9651 if (cached_methods [kind])
9652 return cached_methods [kind];
9654 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9655 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9659 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9661 /* void this::stelemref (size_t idx, void* value) */
9662 sig->ret = &mono_defaults.void_class->byval_arg;
9663 sig->hasthis = TRUE;
9664 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9665 sig->params [1] = &mono_defaults.object_class->byval_arg;
9670 param_names [0] = "index";
9671 param_names [1] = "value";
9672 mono_mb_set_param_names (mb, param_names);
9674 /*For now simply call plain old stelemref*/
9676 case STELEMREF_OBJECT:
9677 /* ldelema (implicit bound check) */
9678 load_array_element_address (mb);
9680 mono_mb_emit_ldarg (mb, 2);
9681 mono_mb_emit_byte (mb, CEE_STIND_REF);
9682 mono_mb_emit_byte (mb, CEE_RET);
9685 case STELEMREF_COMPLEX:
9687 <ldelema (bound check)>
9690 if (!mono_object_isinst (value, aklass))
9694 *array_slot_addr = value;
9697 throw new ArrayTypeMismatchException ();
9700 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9701 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9705 /*Use this to debug/record stores that are going thru the slow path*/
9706 MonoMethodSignature *csig;
9707 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9708 csig->ret = &mono_defaults.void_class->byval_arg;
9709 csig->params [0] = &mono_defaults.object_class->byval_arg;
9710 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9711 csig->params [2] = &mono_defaults.object_class->byval_arg;
9712 mono_mb_emit_ldarg (mb, 0);
9713 mono_mb_emit_ldarg (mb, 1);
9714 mono_mb_emit_ldarg (mb, 2);
9715 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9719 /* ldelema (implicit bound check) */
9720 load_array_element_address (mb);
9721 mono_mb_emit_stloc (mb, array_slot_addr);
9723 /* if (!value) goto do_store */
9724 mono_mb_emit_ldarg (mb, 2);
9725 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9727 /* aklass = array->vtable->klass->element_class */
9728 load_array_class (mb, aklass);
9730 /*if (mono_object_isinst (value, aklass)) */
9731 mono_mb_emit_ldarg (mb, 2);
9732 mono_mb_emit_ldloc (mb, aklass);
9733 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9734 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9737 mono_mb_patch_branch (mb, b1);
9738 mono_mb_emit_ldloc (mb, array_slot_addr);
9739 mono_mb_emit_ldarg (mb, 2);
9740 mono_mb_emit_byte (mb, CEE_STIND_REF);
9741 mono_mb_emit_byte (mb, CEE_RET);
9744 mono_mb_patch_branch (mb, b2);
9746 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9749 case STELEMREF_SEALED_CLASS:
9751 <ldelema (bound check)>
9755 aklass = array->vtable->klass->element_class;
9756 vklass = value->vtable->klass;
9758 if (vklass != aklass)
9762 *array_slot_addr = value;
9765 throw new ArrayTypeMismatchException ();
9767 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9768 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9769 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9772 /* ldelema (implicit bound check) */
9773 load_array_element_address (mb);
9774 mono_mb_emit_stloc (mb, array_slot_addr);
9776 /* if (!value) goto do_store */
9777 mono_mb_emit_ldarg (mb, 2);
9778 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9780 /* aklass = array->vtable->klass->element_class */
9781 load_array_class (mb, aklass);
9783 /* vklass = value->vtable->klass */
9784 load_value_class (mb, vklass);
9786 /*if (vklass != aklass) goto do_exception; */
9787 mono_mb_emit_ldloc (mb, aklass);
9788 mono_mb_emit_ldloc (mb, vklass);
9789 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9792 mono_mb_patch_branch (mb, b1);
9793 mono_mb_emit_ldloc (mb, array_slot_addr);
9794 mono_mb_emit_ldarg (mb, 2);
9795 mono_mb_emit_byte (mb, CEE_STIND_REF);
9796 mono_mb_emit_byte (mb, CEE_RET);
9799 mono_mb_patch_branch (mb, b2);
9800 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9803 case STELEMREF_CLASS:
9806 <ldelema (bound check)>
9810 aklass = array->vtable->klass->element_class;
9811 vklass = value->vtable->klass;
9813 if (vklass->idepth < aklass->idepth)
9816 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9820 *array_slot_addr = value;
9824 throw new ArrayTypeMismatchException ();
9826 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9827 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9828 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9830 /* ldelema (implicit bound check) */
9831 load_array_element_address (mb);
9832 mono_mb_emit_stloc (mb, array_slot_addr);
9834 /* if (!value) goto do_store */
9835 mono_mb_emit_ldarg (mb, 2);
9836 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9838 /* aklass = array->vtable->klass->element_class */
9839 load_array_class (mb, aklass);
9841 /* vklass = value->vtable->klass */
9842 load_value_class (mb, vklass);
9844 /*if (mono_object_isinst (value, aklass)) */
9845 mono_mb_emit_ldarg (mb, 2);
9846 mono_mb_emit_ldloc (mb, aklass);
9847 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9848 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9850 /* if (vklass->idepth < aklass->idepth) goto failue */
9851 mono_mb_emit_ldloc (mb, vklass);
9852 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9853 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9855 mono_mb_emit_ldloc (mb, aklass);
9856 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9857 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9859 b3 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9861 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9862 mono_mb_emit_ldloc (mb, vklass);
9863 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9864 mono_mb_emit_byte (mb, CEE_LDIND_I);
9866 mono_mb_emit_ldloc (mb, aklass);
9867 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9868 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9869 mono_mb_emit_icon (mb, 1);
9870 mono_mb_emit_byte (mb, CEE_SUB);
9871 mono_mb_emit_icon (mb, sizeof (void*));
9872 mono_mb_emit_byte (mb, CEE_MUL);
9873 mono_mb_emit_byte (mb, CEE_ADD);
9874 mono_mb_emit_byte (mb, CEE_LDIND_I);
9876 mono_mb_emit_ldloc (mb, aklass);
9877 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9880 mono_mb_patch_branch (mb, b1);
9881 mono_mb_emit_ldloc (mb, array_slot_addr);
9882 mono_mb_emit_ldarg (mb, 2);
9883 mono_mb_emit_byte (mb, CEE_STIND_REF);
9884 mono_mb_emit_byte (mb, CEE_RET);
9887 mono_mb_patch_branch (mb, b2);
9888 mono_mb_patch_branch (mb, b3);
9889 mono_mb_patch_branch (mb, b4);
9891 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9894 case STELEMREF_INTERFACE:
9901 klass = array->obj.vtable->klass->element_class;
9903 uiid = klass->interface_id;
9904 if (uiid > vt->max_interface_id)
9906 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9909 mono_array_setref (array, index, value);
9912 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9914 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9915 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9916 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9917 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9919 /* ldelema (implicit bound check) */
9920 load_array_element_address (mb);
9921 mono_mb_emit_stloc (mb, array_slot_addr);
9923 /* if (!value) goto do_store */
9924 mono_mb_emit_ldarg (mb, 2);
9925 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9927 /* klass = array->vtable->klass->element_class */
9928 load_array_class (mb, aklass);
9930 /* vt = value->vtable */
9931 mono_mb_emit_ldarg (mb, 2);
9932 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9933 mono_mb_emit_byte (mb, CEE_LDIND_I);
9934 mono_mb_emit_stloc (mb, vtable);
9936 /* uiid = klass->interface_id; */
9937 mono_mb_emit_ldloc (mb, aklass);
9938 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9939 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9940 mono_mb_emit_stloc (mb, uiid);
9942 /*if (uiid > vt->max_interface_id)*/
9943 mono_mb_emit_ldloc (mb, uiid);
9944 mono_mb_emit_ldloc (mb, vtable);
9945 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9946 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9947 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9949 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9951 /*vt->interface_bitmap*/
9952 mono_mb_emit_ldloc (mb, vtable);
9953 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9954 mono_mb_emit_byte (mb, CEE_LDIND_I);
9957 mono_mb_emit_ldloc (mb, uiid);
9958 mono_mb_emit_icon (mb, 3);
9959 mono_mb_emit_byte (mb, CEE_SHR_UN);
9961 /*vt->interface_bitmap [(uiid) >> 3]*/
9962 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9963 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9965 /*(1 << ((uiid)&7)))*/
9966 mono_mb_emit_icon (mb, 1);
9967 mono_mb_emit_ldloc (mb, uiid);
9968 mono_mb_emit_icon (mb, 7);
9969 mono_mb_emit_byte (mb, CEE_AND);
9970 mono_mb_emit_byte (mb, CEE_SHL);
9972 /*bitwise and the whole thing*/
9973 mono_mb_emit_byte (mb, CEE_AND);
9974 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9977 mono_mb_patch_branch (mb, b1);
9978 mono_mb_emit_ldloc (mb, array_slot_addr);
9979 mono_mb_emit_ldarg (mb, 2);
9980 mono_mb_emit_byte (mb, CEE_STIND_REF);
9981 mono_mb_emit_byte (mb, CEE_RET);
9984 mono_mb_patch_branch (mb, b2);
9985 mono_mb_patch_branch (mb, b3);
9986 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9990 mono_mb_emit_ldarg (mb, 0);
9991 mono_mb_emit_ldarg (mb, 1);
9992 mono_mb_emit_ldarg (mb, 2);
9993 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9994 mono_mb_emit_byte (mb, CEE_RET);
9997 #endif /* DISABLE_JIT */
9998 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9999 info->d.virtual_stelemref.kind = kind;
10000 res = mono_mb_create (mb, signature, 4, info);
10001 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10003 mono_marshal_lock ();
10004 if (!cached_methods [kind]) {
10005 cached_methods [kind] = res;
10006 mono_marshal_unlock ();
10008 mono_marshal_unlock ();
10009 mono_free_method (res);
10013 return cached_methods [kind];
10017 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10021 g_assert (array_class->rank == 1);
10022 kind = get_virtual_stelemref_kind (array_class->element_class);
10024 return get_virtual_stelemref_wrapper (kind);
10028 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
10033 *nwrappers = STELEMREF_KIND_COUNT;
10034 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
10035 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
10036 res [i] = get_virtual_stelemref_wrapper (i);
10041 mono_marshal_get_stelemref (void)
10043 static MonoMethod* ret = NULL;
10044 MonoMethodSignature *sig;
10045 MonoMethodBuilder *mb;
10048 guint32 b1, b2, b3, b4;
10050 int aklass, vklass;
10051 int array_slot_addr;
10056 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10059 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10061 /* void stelemref (void* array, int idx, void* value) */
10062 sig->ret = &mono_defaults.void_class->byval_arg;
10063 sig->params [0] = &mono_defaults.object_class->byval_arg;
10064 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10065 sig->params [2] = &mono_defaults.object_class->byval_arg;
10067 #ifndef DISABLE_JIT
10068 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10069 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10070 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10074 <ldelema (bound check)>
10078 aklass = array->vtable->klass->element_class;
10079 vklass = value->vtable->klass;
10081 if (vklass->idepth < aklass->idepth)
10084 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10088 *array_slot_addr = value;
10092 if (mono_object_isinst (value, aklass))
10095 throw new ArrayTypeMismatchException ();
10098 /* ldelema (implicit bound check) */
10099 mono_mb_emit_ldarg (mb, 0);
10100 mono_mb_emit_ldarg (mb, 1);
10101 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10102 mono_mb_emit_stloc (mb, array_slot_addr);
10104 /* if (!value) goto do_store */
10105 mono_mb_emit_ldarg (mb, 2);
10106 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10108 /* aklass = array->vtable->klass->element_class */
10109 mono_mb_emit_ldarg (mb, 0);
10110 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10111 mono_mb_emit_byte (mb, CEE_LDIND_I);
10112 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10113 mono_mb_emit_byte (mb, CEE_LDIND_I);
10114 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10115 mono_mb_emit_byte (mb, CEE_LDIND_I);
10116 mono_mb_emit_stloc (mb, aklass);
10118 /* vklass = value->vtable->klass */
10119 mono_mb_emit_ldarg (mb, 2);
10120 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10121 mono_mb_emit_byte (mb, CEE_LDIND_I);
10122 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10123 mono_mb_emit_byte (mb, CEE_LDIND_I);
10124 mono_mb_emit_stloc (mb, vklass);
10126 /* if (vklass->idepth < aklass->idepth) goto failue */
10127 mono_mb_emit_ldloc (mb, vklass);
10128 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10129 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10131 mono_mb_emit_ldloc (mb, aklass);
10132 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10133 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10135 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10137 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10138 mono_mb_emit_ldloc (mb, vklass);
10139 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10140 mono_mb_emit_byte (mb, CEE_LDIND_I);
10142 mono_mb_emit_ldloc (mb, aklass);
10143 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10144 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10145 mono_mb_emit_icon (mb, 1);
10146 mono_mb_emit_byte (mb, CEE_SUB);
10147 mono_mb_emit_icon (mb, sizeof (void*));
10148 mono_mb_emit_byte (mb, CEE_MUL);
10149 mono_mb_emit_byte (mb, CEE_ADD);
10150 mono_mb_emit_byte (mb, CEE_LDIND_I);
10152 mono_mb_emit_ldloc (mb, aklass);
10154 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10156 copy_pos = mono_mb_get_label (mb);
10158 mono_mb_patch_branch (mb, b1);
10159 mono_mb_emit_ldloc (mb, array_slot_addr);
10160 mono_mb_emit_ldarg (mb, 2);
10161 mono_mb_emit_byte (mb, CEE_STIND_REF);
10163 mono_mb_emit_byte (mb, CEE_RET);
10166 mono_mb_patch_branch (mb, b2);
10167 mono_mb_patch_branch (mb, b3);
10169 mono_mb_emit_ldarg (mb, 2);
10170 mono_mb_emit_ldloc (mb, aklass);
10171 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10173 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10174 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10175 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10177 mono_mb_emit_byte (mb, CEE_RET);
10179 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10180 ret = mono_mb_create (mb, sig, 4, info);
10187 * mono_marshal_get_gsharedvt_in_wrapper:
10189 * This wrapper handles calls from normal code to gsharedvt code.
10192 mono_marshal_get_gsharedvt_in_wrapper (void)
10194 static MonoMethod* ret = NULL;
10195 MonoMethodSignature *sig;
10196 MonoMethodBuilder *mb;
10202 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10204 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10205 sig->ret = &mono_defaults.void_class->byval_arg;
10207 #ifndef DISABLE_JIT
10209 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10211 mono_mb_emit_byte (mb, CEE_RET);
10213 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10214 ret = mono_mb_create (mb, sig, 4, info);
10221 * mono_marshal_get_gsharedvt_out_wrapper:
10223 * This wrapper handles calls from gsharedvt code to normal code.
10226 mono_marshal_get_gsharedvt_out_wrapper (void)
10228 static MonoMethod* ret = NULL;
10229 MonoMethodSignature *sig;
10230 MonoMethodBuilder *mb;
10236 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10238 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10239 sig->ret = &mono_defaults.void_class->byval_arg;
10241 #ifndef DISABLE_JIT
10243 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10245 mono_mb_emit_byte (mb, CEE_RET);
10247 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10248 ret = mono_mb_create (mb, sig, 4, info);
10257 MonoMethod *method;
10260 /* LOCKING: vars accessed under the marshal lock */
10261 static ArrayElemAddr *elem_addr_cache = NULL;
10262 static int elem_addr_cache_size = 0;
10263 static int elem_addr_cache_next = 0;
10266 * mono_marshal_get_array_address:
10267 * @rank: rank of the array type
10268 * @elem_size: size in bytes of an element of an array.
10270 * Returns a MonoMethod that implements the code to get the address
10271 * of an element in a multi-dimenasional array of @rank dimensions.
10272 * The returned method takes an array as the first argument and then
10273 * @rank indexes for the @rank dimensions.
10274 * If ELEM_SIZE is 0, read the array size from the array object.
10277 mono_marshal_get_array_address (int rank, int elem_size)
10280 MonoMethodBuilder *mb;
10281 MonoMethodSignature *sig;
10284 int i, bounds, ind, realidx;
10285 int branch_pos, *branch_positions;
10289 mono_marshal_lock ();
10290 for (i = 0; i < elem_addr_cache_next; ++i) {
10291 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10292 ret = elem_addr_cache [i].method;
10296 mono_marshal_unlock ();
10300 branch_positions = g_new0 (int, rank);
10302 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10304 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10305 sig->ret = &mono_defaults.int_class->byval_arg;
10306 sig->params [0] = &mono_defaults.object_class->byval_arg;
10307 for (i = 0; i < rank; ++i) {
10308 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10311 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10312 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10315 #ifndef DISABLE_JIT
10316 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10317 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10318 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10320 /* bounds = array->bounds; */
10321 mono_mb_emit_ldarg (mb, 0);
10322 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10323 mono_mb_emit_byte (mb, CEE_LDIND_I);
10324 mono_mb_emit_stloc (mb, bounds);
10326 /* ind is the overall element index, realidx is the partial index in a single dimension */
10327 /* ind = idx0 - bounds [0].lower_bound */
10328 mono_mb_emit_ldarg (mb, 1);
10329 mono_mb_emit_ldloc (mb, bounds);
10330 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10331 mono_mb_emit_byte (mb, CEE_ADD);
10332 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10333 mono_mb_emit_byte (mb, CEE_SUB);
10334 mono_mb_emit_stloc (mb, ind);
10335 /* if (ind >= bounds [0].length) goto exeception; */
10336 mono_mb_emit_ldloc (mb, ind);
10337 mono_mb_emit_ldloc (mb, bounds);
10338 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10339 mono_mb_emit_byte (mb, CEE_ADD);
10340 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10341 /* note that we use unsigned comparison */
10342 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10344 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10345 * We could also decide to ignore the passed elem_size and get it
10346 * from the array object, to reduce the number of methods we generate:
10347 * the additional cost is 3 memory loads and a non-immediate mul.
10349 for (i = 1; i < rank; ++i) {
10350 /* realidx = idxi - bounds [i].lower_bound */
10351 mono_mb_emit_ldarg (mb, 1 + i);
10352 mono_mb_emit_ldloc (mb, bounds);
10353 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10354 mono_mb_emit_byte (mb, CEE_ADD);
10355 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10356 mono_mb_emit_byte (mb, CEE_SUB);
10357 mono_mb_emit_stloc (mb, realidx);
10358 /* if (realidx >= bounds [i].length) goto exeception; */
10359 mono_mb_emit_ldloc (mb, realidx);
10360 mono_mb_emit_ldloc (mb, bounds);
10361 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10362 mono_mb_emit_byte (mb, CEE_ADD);
10363 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10364 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10365 /* ind = ind * bounds [i].length + realidx */
10366 mono_mb_emit_ldloc (mb, ind);
10367 mono_mb_emit_ldloc (mb, bounds);
10368 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10369 mono_mb_emit_byte (mb, CEE_ADD);
10370 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10371 mono_mb_emit_byte (mb, CEE_MUL);
10372 mono_mb_emit_ldloc (mb, realidx);
10373 mono_mb_emit_byte (mb, CEE_ADD);
10374 mono_mb_emit_stloc (mb, ind);
10377 /* return array->vector + ind * element_size */
10378 mono_mb_emit_ldarg (mb, 0);
10379 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10380 mono_mb_emit_ldloc (mb, ind);
10382 mono_mb_emit_icon (mb, elem_size);
10384 /* Load arr->vtable->klass->sizes.element_class */
10385 mono_mb_emit_ldarg (mb, 0);
10386 mono_mb_emit_byte (mb, CEE_CONV_I);
10387 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10388 mono_mb_emit_byte (mb, CEE_ADD);
10389 mono_mb_emit_byte (mb, CEE_LDIND_I);
10390 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10391 mono_mb_emit_byte (mb, CEE_ADD);
10392 mono_mb_emit_byte (mb, CEE_LDIND_I);
10393 /* sizes is an union, so this reads sizes.element_size */
10394 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10395 mono_mb_emit_byte (mb, CEE_ADD);
10396 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10398 mono_mb_emit_byte (mb, CEE_MUL);
10399 mono_mb_emit_byte (mb, CEE_ADD);
10400 mono_mb_emit_byte (mb, CEE_RET);
10402 /* patch the branches to get here and throw */
10403 for (i = 1; i < rank; ++i) {
10404 mono_mb_patch_branch (mb, branch_positions [i]);
10406 mono_mb_patch_branch (mb, branch_pos);
10407 /* throw exception */
10408 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10410 g_free (branch_positions);
10411 #endif /* DISABLE_JIT */
10413 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10414 info->d.element_addr.rank = rank;
10415 info->d.element_addr.elem_size = elem_size;
10416 ret = mono_mb_create (mb, sig, 4, info);
10419 /* cache the result */
10421 mono_marshal_lock ();
10422 for (i = 0; i < elem_addr_cache_next; ++i) {
10423 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10424 /* FIXME: free ret */
10425 ret = elem_addr_cache [i].method;
10431 if (elem_addr_cache_next >= elem_addr_cache_size) {
10432 int new_size = elem_addr_cache_size + 4;
10433 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10434 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10435 g_free (elem_addr_cache);
10436 elem_addr_cache = new_array;
10437 elem_addr_cache_size = new_size;
10439 elem_addr_cache [elem_addr_cache_next].rank = rank;
10440 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10441 elem_addr_cache [elem_addr_cache_next].method = ret;
10442 elem_addr_cache_next ++;
10444 mono_marshal_unlock ();
10449 * mono_marshal_get_array_accessor_wrapper:
10451 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10454 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10456 MonoMethodSignature *sig;
10457 MonoMethodBuilder *mb;
10461 MonoGenericContext *ctx = NULL;
10462 MonoMethod *orig_method = NULL;
10463 MonoGenericContainer *container = NULL;
10467 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10468 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10469 * FIXME: Use generic methods.
10476 g_assert_not_reached ();
10478 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10479 if ((res = mono_marshal_find_in_cache (cache, method)))
10483 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10486 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10488 #ifndef DISABLE_JIT
10489 /* Call the method */
10491 mono_mb_emit_ldarg (mb, 0);
10492 for (i = 0; i < sig->param_count; i++)
10493 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10497 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10498 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10500 mono_mb_emit_managed_call (mb, method, NULL);
10502 mono_mb_emit_byte (mb, CEE_RET);
10505 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10506 info->d.array_accessor.method = method;
10510 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10511 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10513 res = mono_mb_create_and_cache_full (cache, method,
10514 mb, sig, sig->param_count + 16,
10523 mono_marshal_alloc (gulong size, MonoError *error)
10527 mono_error_init (error);
10530 res = CoTaskMemAlloc (size);
10532 res = g_try_malloc ((gulong)size);
10534 mono_error_set_out_of_memory (error, "Could not allocate %lu bytes", size);
10539 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10541 ves_icall_marshal_alloc (gulong size)
10544 void *ret = mono_marshal_alloc (size, &error);
10545 if (!mono_error_ok (&error)) {
10546 mono_error_set_pending_exception (&error);
10554 mono_marshal_free (gpointer ptr)
10557 CoTaskMemFree (ptr);
10564 mono_marshal_free_array (gpointer *ptr, int size)
10571 for (i = 0; i < size; i++)
10577 mono_marshal_string_to_utf16 (MonoString *s)
10579 return s ? mono_string_chars (s) : NULL;
10582 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10584 mono_marshal_string_to_utf16_copy (MonoString *s)
10590 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10591 if (!mono_error_ok (&error)) {
10592 mono_error_set_pending_exception (&error);
10595 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10596 res [mono_string_length (s)] = 0;
10602 * mono_marshal_set_last_error:
10604 * This function is invoked to set the last error value from a P/Invoke call
10605 * which has SetLastError set.
10608 mono_marshal_set_last_error (void)
10611 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10613 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10618 mono_marshal_set_last_error_windows (int error)
10621 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10626 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10627 gpointer dest, gint32 length)
10632 MONO_CHECK_ARG_NULL (src,);
10633 MONO_CHECK_ARG_NULL (dest,);
10635 if (src->obj.vtable->klass->rank != 1) {
10636 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10639 if (start_index < 0) {
10640 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10644 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10647 if (start_index + length > mono_array_length (src)) {
10648 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10652 element_size = mono_array_element_size (src->obj.vtable->klass);
10654 /* no references should be involved */
10655 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10657 memcpy (dest, source_addr, length * element_size);
10661 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10662 MonoArray *dest, gint32 length)
10667 MONO_CHECK_ARG_NULL (src,);
10668 MONO_CHECK_ARG_NULL (dest,);
10670 if (dest->obj.vtable->klass->rank != 1) {
10671 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10674 if (start_index < 0) {
10675 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10679 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10682 if (start_index + length > mono_array_length (dest)) {
10683 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10686 element_size = mono_array_element_size (dest->obj.vtable->klass);
10688 /* no references should be involved */
10689 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10691 memcpy (dest_addr, src, length * element_size);
10695 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10700 return mono_string_new (mono_domain_get (), ptr);
10704 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10707 MonoString *result = NULL;
10708 mono_error_init (&error);
10710 mono_error_set_argument_null (&error, "ptr", "");
10712 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10713 mono_error_set_pending_exception (&error);
10718 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10721 MonoString *res = NULL;
10722 MonoDomain *domain = mono_domain_get ();
10732 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10733 if (!mono_error_ok (&error)) {
10734 mono_error_set_pending_exception (&error);
10741 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10744 MonoString *res = NULL;
10745 MonoDomain *domain = mono_domain_get ();
10747 mono_error_init (&error);
10751 mono_error_set_argument_null (&error, "ptr", "");
10753 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10756 if (!mono_error_ok (&error))
10757 mono_error_set_pending_exception (&error);
10762 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10764 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10768 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10774 MONO_CHECK_ARG_NULL (rtype, 0);
10776 type = rtype->type;
10777 klass = mono_class_from_mono_type (type);
10778 if (!mono_class_init (klass)) {
10779 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10783 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10785 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10786 return sizeof (gpointer);
10787 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10789 MonoException *exc;
10791 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10792 exc = mono_get_exception_argument ("t", msg);
10794 mono_set_pending_exception (exc);
10798 return mono_class_native_size (klass, NULL);
10802 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10805 MonoMethod *method;
10808 MONO_CHECK_ARG_NULL (obj,);
10809 MONO_CHECK_ARG_NULL (dst,);
10811 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10815 pa [2] = &delete_old;
10817 mono_runtime_invoke_checked (method, NULL, pa, &error);
10818 if (!mono_error_ok (&error))
10819 mono_error_set_pending_exception (&error);
10823 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10825 MonoMethod *method;
10828 mono_error_init (error);
10830 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10835 mono_runtime_invoke_checked (method, NULL, pa, error);
10839 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10844 MONO_CHECK_ARG_NULL (src,);
10845 MONO_CHECK_ARG_NULL (dst,);
10847 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10849 if (t->type == MONO_TYPE_VALUETYPE) {
10850 MonoException *exc;
10853 tmp = g_strdup_printf ("Destination is a boxed value type.");
10854 exc = mono_get_exception_argument ("dst", tmp);
10857 mono_set_pending_exception (exc);
10861 ptr_to_structure (src, dst, &error);
10862 if (!mono_error_ok (&error))
10863 mono_error_set_pending_exception (&error);
10867 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10871 MonoDomain *domain = mono_domain_get ();
10876 MONO_CHECK_ARG_NULL (type, NULL);
10878 klass = mono_class_from_mono_type (type->type);
10879 if (!mono_class_init (klass)) {
10880 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10884 res = mono_object_new_checked (domain, klass, &error);
10885 if (!mono_error_ok (&error)) {
10886 mono_error_set_pending_exception (&error);
10890 ptr_to_structure (src, res, &error);
10891 if (!mono_error_ok (&error)) {
10892 mono_error_set_pending_exception (&error);
10900 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10903 MonoMarshalType *info;
10906 int match_index = -1;
10908 MONO_CHECK_ARG_NULL (type, 0);
10909 MONO_CHECK_ARG_NULL (field_name, 0);
10911 fname = mono_string_to_utf8_checked (field_name, &error);
10912 if (mono_error_set_pending_exception (&error))
10914 klass = mono_class_from_mono_type (type->type);
10915 if (!mono_class_init (klass)) {
10916 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10920 while (klass && match_index == -1) {
10921 MonoClassField* field;
10923 gpointer iter = NULL;
10924 while ((field = mono_class_get_fields (klass, &iter))) {
10925 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10927 if (!strcmp (fname, mono_field_get_name (field))) {
10934 if (match_index == -1)
10935 klass = klass->parent;
10940 if(match_index == -1) {
10941 MonoException* exc;
10944 /* Get back original class instance */
10945 klass = mono_class_from_mono_type (type->type);
10947 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10948 exc = mono_get_exception_argument ("fieldName", tmp);
10951 mono_set_pending_exception ((MonoException*)exc);
10955 info = mono_marshal_load_type_info (klass);
10956 return info->fields [match_index].offset;
10960 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10966 tres = mono_string_to_utf8_checked (string, &error);
10967 if (mono_error_set_pending_exception (&error))
10973 * mono_string_to_utf8_checked() returns a memory area at least as large as the size of the
10974 * MonoString, even if it contains NULL characters. The copy we allocate here has to be equally
10977 len = MAX (strlen (tres) + 1, string->length);
10978 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10979 memcpy (ret, tres, len);
10984 char *ret = mono_string_to_utf8_checked (string, &error);
10985 mono_error_set_pending_exception (&error);
10991 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10993 if (string == NULL)
10996 #ifdef TARGET_WIN32
10997 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10998 ((mono_string_length (string) + 1) * 2);
11000 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
11002 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11003 res [mono_string_length (string)] = 0;
11009 mono_struct_delete_old (MonoClass *klass, char *ptr)
11011 MonoMarshalType *info;
11014 info = mono_marshal_load_type_info (klass);
11016 for (i = 0; i < info->num_fields; i++) {
11017 MonoMarshalConv conv;
11018 MonoType *ftype = info->fields [i].field->type;
11021 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11024 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11025 klass->unicode, &conv);
11027 cpos = ptr + info->fields [i].offset;
11030 case MONO_MARSHAL_CONV_NONE:
11031 if (MONO_TYPE_ISSTRUCT (ftype)) {
11032 mono_struct_delete_old (ftype->data.klass, cpos);
11036 case MONO_MARSHAL_CONV_STR_LPWSTR:
11037 /* We assume this field points inside a MonoString */
11039 case MONO_MARSHAL_CONV_STR_LPTSTR:
11040 #ifdef TARGET_WIN32
11041 /* We assume this field points inside a MonoString
11045 case MONO_MARSHAL_CONV_STR_LPSTR:
11046 case MONO_MARSHAL_CONV_STR_BSTR:
11047 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11048 case MONO_MARSHAL_CONV_STR_TBSTR:
11049 mono_marshal_free (*(gpointer *)cpos);
11059 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11063 MONO_CHECK_ARG_NULL (src,);
11064 MONO_CHECK_ARG_NULL (type,);
11066 klass = mono_class_from_mono_type (type->type);
11067 if (!mono_class_init (klass)) {
11068 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11072 mono_struct_delete_old (klass, (char *)src);
11076 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
11079 size_t s = (size_t)size;
11082 /* This returns a valid pointer for size 0 on MS.NET */
11086 res = GlobalAlloc (GMEM_FIXED, s);
11088 res = g_try_malloc (s);
11091 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11099 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
11102 size_t s = (size_t)size;
11105 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11110 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
11112 res = g_try_realloc (ptr, s);
11115 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11123 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11133 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11138 res = CoTaskMemAlloc (size);
11140 if ((gulong)size == 0)
11141 /* This returns a valid pointer for size 0 on MS.NET */
11144 res = g_try_malloc ((gulong)size);
11147 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11154 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11157 CoTaskMemFree (ptr);
11164 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11169 res = CoTaskMemRealloc (ptr, size);
11171 res = g_try_realloc (ptr, (gulong)size);
11174 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11181 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11183 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11187 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11189 MonoClass *klass = mono_type_get_class (type->type);
11190 if (!mono_class_init (klass)) {
11191 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11195 return mono_ftnptr_to_delegate (klass, ftn);
11199 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11201 return mono_delegate_to_ftnptr (delegate);
11205 * mono_marshal_is_loading_type_info:
11207 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11211 mono_marshal_is_loading_type_info (MonoClass *klass)
11213 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11215 return g_slist_find (loads_list, klass) != NULL;
11219 * mono_marshal_load_type_info:
11221 * Initialize klass->marshal_info using information from metadata. This function can
11222 * recursively call itself, and the caller is responsible to avoid that by calling
11223 * mono_marshal_is_loading_type_info () beforehand.
11225 * LOCKING: Acquires the loader lock.
11228 mono_marshal_load_type_info (MonoClass* klass)
11231 guint32 native_size = 0, min_align = 1, packing;
11232 MonoMarshalType *info;
11233 MonoClassField* field;
11236 GSList *loads_list;
11238 g_assert (klass != NULL);
11240 if (klass->marshal_info)
11241 return klass->marshal_info;
11243 if (!klass->inited)
11244 mono_class_init (klass);
11246 if (klass->marshal_info)
11247 return klass->marshal_info;
11250 * This function can recursively call itself, so we keep the list of classes which are
11251 * under initialization in a TLS list.
11253 g_assert (!mono_marshal_is_loading_type_info (klass));
11254 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11255 loads_list = g_slist_prepend (loads_list, klass);
11256 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11259 while ((field = mono_class_get_fields (klass, &iter))) {
11260 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11262 if (mono_field_is_deleted (field))
11267 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11269 /* The mempool is protected by the loader lock */
11270 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11271 info->num_fields = count;
11273 /* Try to find a size for this type in metadata */
11274 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11276 if (klass->parent) {
11277 int parent_size = mono_class_native_size (klass->parent, NULL);
11279 /* Add parent size to real size */
11280 native_size += parent_size;
11281 info->native_size = parent_size;
11284 packing = klass->packing_size ? klass->packing_size : 8;
11287 while ((field = mono_class_get_fields (klass, &iter))) {
11291 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11294 if (mono_field_is_deleted (field))
11296 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11297 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11298 NULL, NULL, &info->fields [j].mspec);
11300 info->fields [j].field = field;
11302 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11303 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11304 /* This field is a hack inserted by MCS to empty structures */
11309 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11310 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11311 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11312 &align, TRUE, klass->unicode);
11313 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11314 min_align = MAX (align, min_align);
11315 info->fields [j].offset = info->native_size;
11316 info->fields [j].offset += align - 1;
11317 info->fields [j].offset &= ~(align - 1);
11318 info->native_size = info->fields [j].offset + size;
11320 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11321 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11322 &align, TRUE, klass->unicode);
11323 min_align = MAX (align, min_align);
11324 info->fields [j].offset = field->offset - sizeof (MonoObject);
11325 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11331 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11332 info->native_size = MAX (native_size, info->native_size);
11334 * If the provided Size is equal or larger than the calculated size, and there
11335 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11337 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11338 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11341 min_align = MIN (min_align, packing);
11345 if (info->native_size & (min_align - 1)) {
11346 info->native_size += min_align - 1;
11347 info->native_size &= ~(min_align - 1);
11350 info->min_align = min_align;
11352 /* Update the class's blittable info, if the layouts don't match */
11353 if (info->native_size != mono_class_value_size (klass, NULL))
11354 klass->blittable = FALSE;
11356 /* If this is an array type, ensure that we have element info */
11357 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11358 mono_marshal_load_type_info (klass->element_class);
11361 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11362 loads_list = g_slist_remove (loads_list, klass);
11363 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11365 mono_marshal_lock ();
11366 if (!klass->marshal_info) {
11367 /*We do double-checking locking on marshal_info */
11368 mono_memory_barrier ();
11369 klass->marshal_info = info;
11371 mono_marshal_unlock ();
11373 return klass->marshal_info;
11377 * mono_class_native_size:
11380 * Returns: the native size of an object instance (when marshaled
11381 * to unmanaged code)
11384 mono_class_native_size (MonoClass *klass, guint32 *align)
11386 if (!klass->marshal_info) {
11387 if (mono_marshal_is_loading_type_info (klass)) {
11392 mono_marshal_load_type_info (klass);
11397 *align = klass->marshal_info->min_align;
11399 return klass->marshal_info->native_size;
11403 * mono_type_native_stack_size:
11404 * @t: the type to return the size it uses on the stack
11406 * Returns: the number of bytes required to hold an instance of this
11407 * type on the native stack
11410 mono_type_native_stack_size (MonoType *t, guint32 *align)
11414 g_assert (t != NULL);
11420 *align = sizeof (gpointer);
11421 return sizeof (gpointer);
11425 case MONO_TYPE_BOOLEAN:
11426 case MONO_TYPE_CHAR:
11437 case MONO_TYPE_STRING:
11438 case MONO_TYPE_OBJECT:
11439 case MONO_TYPE_CLASS:
11440 case MONO_TYPE_SZARRAY:
11441 case MONO_TYPE_PTR:
11442 case MONO_TYPE_FNPTR:
11443 case MONO_TYPE_ARRAY:
11444 *align = sizeof (gpointer);
11445 return sizeof (gpointer);
11450 *align = MONO_ABI_ALIGNOF (double);
11454 *align = MONO_ABI_ALIGNOF (gint64);
11456 case MONO_TYPE_GENERICINST:
11457 if (!mono_type_generic_inst_is_valuetype (t)) {
11458 *align = sizeof (gpointer);
11459 return sizeof (gpointer);
11462 case MONO_TYPE_TYPEDBYREF:
11463 case MONO_TYPE_VALUETYPE: {
11465 MonoClass *klass = mono_class_from_mono_type (t);
11467 if (klass->enumtype)
11468 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11470 size = mono_class_native_size (klass, align);
11471 *align = *align + 3;
11481 g_error ("type 0x%02x unknown", t->type);
11487 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11488 gboolean as_field, gboolean unicode)
11490 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11493 switch (native_type) {
11494 case MONO_NATIVE_BOOLEAN:
11497 case MONO_NATIVE_I1:
11498 case MONO_NATIVE_U1:
11501 case MONO_NATIVE_I2:
11502 case MONO_NATIVE_U2:
11503 case MONO_NATIVE_VARIANTBOOL:
11506 case MONO_NATIVE_I4:
11507 case MONO_NATIVE_U4:
11508 case MONO_NATIVE_ERROR:
11511 case MONO_NATIVE_I8:
11512 case MONO_NATIVE_U8:
11513 *align = MONO_ABI_ALIGNOF (gint64);
11515 case MONO_NATIVE_R4:
11518 case MONO_NATIVE_R8:
11519 *align = MONO_ABI_ALIGNOF (double);
11521 case MONO_NATIVE_INT:
11522 case MONO_NATIVE_UINT:
11523 case MONO_NATIVE_LPSTR:
11524 case MONO_NATIVE_LPWSTR:
11525 case MONO_NATIVE_LPTSTR:
11526 case MONO_NATIVE_BSTR:
11527 case MONO_NATIVE_ANSIBSTR:
11528 case MONO_NATIVE_TBSTR:
11529 case MONO_NATIVE_LPARRAY:
11530 case MONO_NATIVE_SAFEARRAY:
11531 case MONO_NATIVE_IUNKNOWN:
11532 case MONO_NATIVE_IDISPATCH:
11533 case MONO_NATIVE_INTERFACE:
11534 case MONO_NATIVE_ASANY:
11535 case MONO_NATIVE_FUNC:
11536 case MONO_NATIVE_LPSTRUCT:
11537 *align = MONO_ABI_ALIGNOF (gpointer);
11538 return sizeof (gpointer);
11539 case MONO_NATIVE_STRUCT:
11540 klass = mono_class_from_mono_type (type);
11541 if (klass == mono_defaults.object_class &&
11542 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11546 return mono_class_native_size (klass, align);
11547 case MONO_NATIVE_BYVALTSTR: {
11548 int esize = unicode ? 2: 1;
11551 return mspec->data.array_data.num_elem * esize;
11553 case MONO_NATIVE_BYVALARRAY: {
11554 // FIXME: Have to consider ArraySubType
11556 klass = mono_class_from_mono_type (type);
11557 if (klass->element_class == mono_defaults.char_class) {
11558 esize = unicode ? 2 : 1;
11561 esize = mono_class_native_size (klass->element_class, align);
11564 return mspec->data.array_data.num_elem * esize;
11566 case MONO_NATIVE_CUSTOM:
11567 *align = sizeof (gpointer);
11568 return sizeof (gpointer);
11570 case MONO_NATIVE_CURRENCY:
11571 case MONO_NATIVE_VBBYREFSTR:
11573 g_error ("native type %02x not implemented", native_type);
11576 g_assert_not_reached ();
11580 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11582 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11591 t = &o->vtable->klass->byval_arg;
11595 case MONO_TYPE_PTR:
11598 case MONO_TYPE_BOOLEAN:
11601 case MONO_TYPE_CHAR:
11606 return mono_object_unbox (o);
11608 case MONO_TYPE_STRING:
11609 switch (string_encoding) {
11610 case MONO_NATIVE_LPWSTR:
11611 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11613 case MONO_NATIVE_LPSTR:
11614 return mono_string_to_lpstr ((MonoString*)o);
11617 g_warning ("marshaling conversion %d not implemented", string_encoding);
11618 g_assert_not_reached ();
11621 case MONO_TYPE_CLASS:
11622 case MONO_TYPE_VALUETYPE: {
11623 MonoMethod *method;
11626 MonoBoolean delete_old = FALSE;
11628 klass = t->data.klass;
11630 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11633 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11634 klass->blittable || klass->enumtype))
11635 return mono_object_unbox (o);
11637 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11638 if (!mono_error_ok (&error)) {
11639 mono_error_set_pending_exception (&error);
11643 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11644 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11648 pa [2] = &delete_old;
11650 mono_runtime_invoke_checked (method, NULL, pa, &error);
11651 if (!mono_error_ok (&error)) {
11652 mono_error_set_pending_exception (&error);
11662 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11666 /* This is a JIT icall, it sets the pending exception */
11668 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11677 t = &o->vtable->klass->byval_arg;
11679 case MONO_TYPE_STRING:
11680 switch (string_encoding) {
11681 case MONO_NATIVE_LPWSTR:
11682 case MONO_NATIVE_LPSTR:
11683 mono_marshal_free (ptr);
11686 g_warning ("marshaling conversion %d not implemented", string_encoding);
11687 g_assert_not_reached ();
11690 case MONO_TYPE_CLASS:
11691 case MONO_TYPE_VALUETYPE: {
11692 klass = t->data.klass;
11694 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11695 klass->blittable || klass->enumtype))
11698 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11699 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11705 mono_runtime_invoke_checked (method, NULL, pa, &error);
11706 if (!mono_error_ok (&error)) {
11707 mono_error_set_pending_exception (&error);
11712 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11713 mono_struct_delete_old (klass, (char *)ptr);
11716 mono_marshal_free (ptr);
11725 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11727 MonoMethodSignature *sig, *csig;
11728 MonoMethodBuilder *mb;
11733 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11734 mb->method->slot = -1;
11736 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11737 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11739 sig = mono_method_signature (method);
11740 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11741 csig->generic_param_count = 0;
11743 #ifndef DISABLE_JIT
11744 mono_mb_emit_ldarg (mb, 0);
11745 for (i = 0; i < csig->param_count; i++)
11746 mono_mb_emit_ldarg (mb, i + 1);
11747 mono_mb_emit_managed_call (mb, method, NULL);
11748 mono_mb_emit_byte (mb, CEE_RET);
11750 /* We can corlib internal methods */
11751 mb->skip_visibility = TRUE;
11753 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11754 info->d.generic_array_helper.method = method;
11755 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11763 * The mono_win32_compat_* functions are implementations of inline
11764 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11765 * although not exported by kernel32.
11767 * We map the appropiate kernel32 entries to these functions using
11768 * dllmaps declared in the global etc/mono/config.
11772 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11774 if (!dest || !source)
11777 memcpy (dest, source, length);
11781 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11783 memset (dest, fill, length);
11787 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11789 if (!dest || !source)
11792 memmove (dest, source, length);
11796 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11798 memset (dest, 0, length);
11802 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11807 for (i = 0; i < len; ++i)
11811 g_assert (i < len);
11814 while (byte && !(byte & 1))
11816 g_assert (byte == 1);
11819 *bitmask = buf [i];
11823 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11825 MonoMethodBuilder *mb;
11826 MonoMethodSignature *sig, *csig;
11827 MonoExceptionClause *clause;
11832 int i, param_count, sig_size, pos_leave;
11836 // FIXME: we need to store the exception into a MonoHandle
11837 g_assert (!mono_threads_is_coop_enabled ());
11839 klass = method->klass;
11840 image = method->klass->image;
11842 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11844 if ((res = mono_marshal_find_in_cache (cache, method)))
11847 sig = mono_method_signature (method);
11848 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11850 /* add "this" and exception param */
11851 param_count = sig->param_count + sig->hasthis + 1;
11853 /* dup & extend signature */
11854 csig = mono_metadata_signature_alloc (image, param_count);
11855 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11856 memcpy (csig, sig, sig_size);
11857 csig->param_count = param_count;
11860 csig->call_convention = MONO_CALL_DEFAULT;
11862 if (sig->hasthis) {
11864 csig->params [0] = &klass->byval_arg;
11865 /* move params up by one */
11866 for (i = 0; i < sig->param_count; i++)
11867 csig->params [i + 1] = sig->params [i];
11870 /* setup exception param as byref+[out] */
11871 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11872 &mono_defaults.exception_class->byval_arg);
11873 csig->params [param_count - 1]->byref = 1;
11874 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11876 /* convert struct return to object */
11877 if (MONO_TYPE_ISSTRUCT (sig->ret))
11878 csig->ret = &mono_defaults.object_class->byval_arg;
11880 #ifndef DISABLE_JIT
11881 /* local 0 (temp for exception object) */
11882 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11884 /* local 1 (temp for result) */
11885 if (!MONO_TYPE_IS_VOID (sig->ret))
11886 mono_mb_add_local (mb, sig->ret);
11888 /* clear exception arg */
11889 mono_mb_emit_ldarg (mb, param_count - 1);
11890 mono_mb_emit_byte (mb, CEE_LDNULL);
11891 mono_mb_emit_byte (mb, CEE_STIND_REF);
11894 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11895 clause->try_offset = mono_mb_get_label (mb);
11897 /* push method's args */
11898 for (i = 0; i < param_count - 1; i++) {
11902 mono_mb_emit_ldarg (mb, i);
11904 /* get the byval type of the param */
11905 klass = mono_class_from_mono_type (csig->params [i]);
11906 type = &klass->byval_arg;
11908 /* unbox struct args */
11909 if (MONO_TYPE_ISSTRUCT (type)) {
11910 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11912 /* byref args & and the "this" arg must remain a ptr.
11913 Otherwise make a copy of the value type */
11914 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11915 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11917 csig->params [i] = &mono_defaults.object_class->byval_arg;
11922 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11923 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11925 mono_mb_emit_op (mb, CEE_CALL, method);
11927 /* save result at local 1 */
11928 if (!MONO_TYPE_IS_VOID (sig->ret))
11929 mono_mb_emit_stloc (mb, 1);
11931 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11934 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11935 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11936 clause->data.catch_class = mono_defaults.object_class;
11938 clause->handler_offset = mono_mb_get_label (mb);
11940 /* store exception at local 0 */
11941 mono_mb_emit_stloc (mb, 0);
11942 mono_mb_emit_ldarg (mb, param_count - 1);
11943 mono_mb_emit_ldloc (mb, 0);
11944 mono_mb_emit_byte (mb, CEE_STIND_REF);
11945 mono_mb_emit_branch (mb, CEE_LEAVE);
11947 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11949 mono_mb_set_clauses (mb, 1, clause);
11951 mono_mb_patch_branch (mb, pos_leave);
11954 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11955 mono_mb_emit_ldloc (mb, 1);
11957 /* box the return value */
11958 if (MONO_TYPE_ISSTRUCT (sig->ret))
11959 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11962 mono_mb_emit_byte (mb, CEE_RET);
11965 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11972 * mono_marshal_free_dynamic_wrappers:
11974 * Free wrappers of the dynamic method METHOD.
11977 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11979 MonoImage *image = method->klass->image;
11981 g_assert (method_is_dynamic (method));
11983 /* This could be called during shutdown */
11984 if (marshal_mutex_initialized)
11985 mono_marshal_lock ();
11987 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11988 * they could be shared with other methods ?
11990 if (image->wrapper_caches.runtime_invoke_direct_cache)
11991 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11992 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11993 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11994 // FIXME: Need to clear the caches in other images as well
11995 if (image->delegate_bound_static_invoke_cache)
11996 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11998 if (marshal_mutex_initialized)
11999 mono_marshal_unlock ();
12003 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
12005 g_assert (ftnptr_eh_callback);
12006 ftnptr_eh_callback (gchandle);
12010 ftnptr_eh_callback_default (guint32 gchandle)
12012 MonoException *exc;
12013 gpointer stackdata;
12015 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
12017 exc = (MonoException*) mono_gchandle_get_target (gchandle);
12019 mono_gchandle_free (gchandle);
12021 mono_raise_exception (exc);
12025 * mono_install_ftnptr_eh_callback:
12027 * Install a callback that should be called when there is a managed exception
12028 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
12029 * managed exception to a native exception, to properly unwind the native
12030 * stack; this native exception will then be converted back to a managed
12031 * exception in their managed-to-native wrapper.
12034 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
12036 ftnptr_eh_callback = callback;
12039 static MonoThreadInfo*
12040 mono_icall_start (HandleStackMark *stackmark, MonoError *error)
12042 MonoThreadInfo *info = mono_thread_info_current ();
12044 mono_stack_mark_init (info, stackmark);
12045 mono_error_init (error);
12050 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error)
12052 mono_stack_mark_pop (info, stackmark);
12053 mono_error_set_pending_exception (error);