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, 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));
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);
1941 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1942 MonoMarshalNative string_encoding)
1944 MonoMarshalType *info;
1948 emit_struct_conv(mb, klass->parent, to_object);
1950 info = mono_marshal_load_type_info (klass);
1952 if (info->native_size == 0)
1955 if (klass->blittable) {
1956 int msize = mono_class_value_size (klass, NULL);
1957 g_assert (msize == info->native_size);
1958 mono_mb_emit_ldloc (mb, 1);
1959 mono_mb_emit_ldloc (mb, 0);
1960 mono_mb_emit_icon (mb, msize);
1961 mono_mb_emit_byte (mb, CEE_PREFIX1);
1962 mono_mb_emit_byte (mb, CEE_CPBLK);
1964 mono_mb_emit_add_to_local (mb, 0, msize);
1965 mono_mb_emit_add_to_local (mb, 1, msize);
1969 if (klass != mono_class_try_get_safehandle_class ()) {
1970 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1971 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1972 mono_type_full_name (&klass->byval_arg));
1973 mono_mb_emit_exception_marshal_directive (mb, msg);
1978 for (i = 0; i < info->num_fields; i++) {
1979 MonoMarshalNative ntype;
1980 MonoMarshalConv conv;
1981 MonoType *ftype = info->fields [i].field->type;
1984 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1986 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1989 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1992 msize = klass->instance_size - info->fields [i].field->offset;
1993 usize = info->native_size - info->fields [i].offset;
1995 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1996 usize = info->fields [i + 1].offset - info->fields [i].offset;
1999 if (klass != mono_class_try_get_safehandle_class ()){
2001 * FIXME: Should really check for usize==0 and msize>0, but we apply
2002 * the layout to the managed structure as well.
2005 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
2006 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2007 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2008 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2009 "reference field at the same offset as another field.",
2010 mono_type_full_name (&klass->byval_arg));
2015 case MONO_MARSHAL_CONV_NONE: {
2018 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2019 g_assert (!ftype->byref);
2020 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2021 mono_mb_emit_ldloc (mb, 1);
2022 mono_mb_emit_ldloc (mb, 0);
2023 mono_mb_emit_byte (mb, CEE_LDIND_I);
2024 mono_mb_emit_byte (mb, CEE_STIND_I);
2035 case MONO_TYPE_BOOLEAN:
2038 case MONO_TYPE_CHAR:
2044 mono_mb_emit_ldloc (mb, 1);
2045 mono_mb_emit_ldloc (mb, 0);
2046 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2048 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2049 mono_mb_emit_byte (mb, CEE_STIND_I2);
2051 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2052 mono_mb_emit_byte (mb, CEE_STIND_I1);
2055 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2056 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2059 case MONO_TYPE_VALUETYPE: {
2060 int src_var, dst_var;
2062 if (ftype->data.klass->enumtype) {
2063 ftype = mono_class_enum_basetype (ftype->data.klass);
2067 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2068 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2070 /* save the old src pointer */
2071 mono_mb_emit_ldloc (mb, 0);
2072 mono_mb_emit_stloc (mb, src_var);
2073 /* save the old dst pointer */
2074 mono_mb_emit_ldloc (mb, 1);
2075 mono_mb_emit_stloc (mb, dst_var);
2077 emit_struct_conv (mb, ftype->data.klass, to_object);
2079 /* restore the old src pointer */
2080 mono_mb_emit_ldloc (mb, src_var);
2081 mono_mb_emit_stloc (mb, 0);
2082 /* restore the old dst pointer */
2083 mono_mb_emit_ldloc (mb, dst_var);
2084 mono_mb_emit_stloc (mb, 1);
2087 case MONO_TYPE_OBJECT: {
2090 static MonoMethod *variant_clear = NULL;
2091 static MonoMethod *get_object_for_native_variant = NULL;
2094 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2095 if (!get_object_for_native_variant)
2096 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2097 mono_mb_emit_ldloc (mb, 1);
2098 mono_mb_emit_ldloc (mb, 0);
2099 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2100 mono_mb_emit_byte (mb, CEE_STIND_REF);
2102 mono_mb_emit_ldloc (mb, 0);
2103 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2106 static MonoMethod *get_native_variant_for_object = NULL;
2108 if (!get_native_variant_for_object)
2109 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2111 mono_mb_emit_ldloc (mb, 0);
2112 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2113 mono_mb_emit_ldloc (mb, 1);
2114 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2117 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2118 mono_mb_emit_exception_marshal_directive (mb, msg);
2124 g_warning ("marshaling type %02x not implemented", ftype->type);
2125 g_assert_not_reached ();
2130 int src_var, dst_var;
2132 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2133 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2135 /* save the old src pointer */
2136 mono_mb_emit_ldloc (mb, 0);
2137 mono_mb_emit_stloc (mb, src_var);
2138 /* save the old dst pointer */
2139 mono_mb_emit_ldloc (mb, 1);
2140 mono_mb_emit_stloc (mb, dst_var);
2143 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2145 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2147 /* restore the old src pointer */
2148 mono_mb_emit_ldloc (mb, src_var);
2149 mono_mb_emit_stloc (mb, 0);
2150 /* restore the old dst pointer */
2151 mono_mb_emit_ldloc (mb, dst_var);
2152 mono_mb_emit_stloc (mb, 1);
2157 mono_mb_emit_add_to_local (mb, 0, usize);
2158 mono_mb_emit_add_to_local (mb, 1, msize);
2160 mono_mb_emit_add_to_local (mb, 0, msize);
2161 mono_mb_emit_add_to_local (mb, 1, usize);
2167 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2169 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2173 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2175 /* Call DestroyStructure */
2176 /* FIXME: Only do this if needed */
2177 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2178 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2179 mono_mb_emit_ldloc (mb, struct_var);
2180 mono_mb_emit_icall (mb, mono_struct_delete_old);
2184 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2186 int pos_noabort, pos_noex;
2188 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2189 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2190 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2191 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2193 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2194 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2196 mono_mb_emit_icall (mb, checkpoint_func);
2197 /* Throw the exception returned by the checkpoint function, if any */
2198 mono_mb_emit_byte (mb, CEE_DUP);
2199 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2200 mono_mb_emit_byte (mb, CEE_THROW);
2201 mono_mb_patch_branch (mb, pos_noex);
2202 mono_mb_emit_byte (mb, CEE_POP);
2204 mono_mb_patch_branch (mb, pos_noabort);
2208 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2210 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2213 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2217 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2219 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2223 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2225 emit_thread_interrupt_checkpoint (mb);
2229 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2231 emit_thread_force_interrupt_checkpoint (mb);
2234 #endif /* DISABLE_JIT */
2236 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2237 static MonoAsyncResult *
2238 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2241 MonoMulticastDelegate *mcast_delegate;
2245 g_assert (delegate);
2246 mcast_delegate = (MonoMulticastDelegate *) delegate;
2247 if (mcast_delegate->delegates != NULL) {
2248 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2252 #ifndef DISABLE_REMOTING
2253 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2254 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2255 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2256 /* If the target is a proxy, make a direct call. Is proxy's work
2257 // to make the call asynchronous.
2259 MonoMethodMessage *msg;
2260 MonoDelegate *async_callback;
2262 MonoAsyncResult *ares;
2264 MonoArray *out_args;
2265 method = delegate->method;
2267 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2268 if (mono_error_set_pending_exception (&error))
2270 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2271 if (mono_error_set_pending_exception (&error))
2273 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2274 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2275 MONO_OBJECT_SETREF (msg, async_result, ares);
2276 msg->call_type = CallType_BeginInvoke;
2279 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2280 if (!mono_error_ok (&error)) {
2281 mono_error_set_pending_exception (&error);
2285 mono_set_pending_exception ((MonoException *) exc);
2291 klass = delegate->object.vtable->klass;
2293 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2295 method = mono_get_delegate_invoke (klass);
2298 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2299 mono_error_set_pending_exception (&error);
2306 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2308 int i, params_var, tmp_var;
2310 /* allocate local (pointer) *params[] */
2311 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2312 /* allocate local (pointer) tmp */
2313 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2315 /* alloate space on stack to store an array of pointers to the arguments */
2316 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2317 mono_mb_emit_byte (mb, CEE_PREFIX1);
2318 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2319 mono_mb_emit_stloc (mb, params_var);
2322 mono_mb_emit_ldloc (mb, params_var);
2323 mono_mb_emit_stloc (mb, tmp_var);
2325 if (save_this && sig->hasthis) {
2326 mono_mb_emit_ldloc (mb, tmp_var);
2327 mono_mb_emit_ldarg_addr (mb, 0);
2328 mono_mb_emit_byte (mb, CEE_STIND_I);
2329 /* tmp = tmp + sizeof (gpointer) */
2330 if (sig->param_count)
2331 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2335 for (i = 0; i < sig->param_count; i++) {
2336 mono_mb_emit_ldloc (mb, tmp_var);
2337 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2338 mono_mb_emit_byte (mb, CEE_STIND_I);
2339 /* tmp = tmp + sizeof (gpointer) */
2340 if (i < (sig->param_count - 1))
2341 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2347 #endif /* DISABLE_JIT */
2350 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2354 GString *res = g_string_new ("");
2357 g_string_append (res, prefix);
2358 g_string_append_c (res, '_');
2361 mono_type_get_desc (res, sig->ret, FALSE);
2364 g_string_append (res, "__this__");
2366 for (i = 0; i < sig->param_count; ++i) {
2367 g_string_append_c (res, '_');
2368 mono_type_get_desc (res, sig->params [i], FALSE);
2371 g_string_free (res, FALSE);
2376 * mono_marshal_get_string_encoding:
2378 * Return the string encoding which should be used for a given parameter.
2380 static MonoMarshalNative
2381 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2383 /* First try the parameter marshal info */
2385 if (spec->native == MONO_NATIVE_LPARRAY) {
2386 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2387 return spec->data.array_data.elem_type;
2390 return spec->native;
2394 return MONO_NATIVE_LPSTR;
2396 /* Then try the method level marshal info */
2397 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2398 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2399 return MONO_NATIVE_LPSTR;
2400 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2401 return MONO_NATIVE_LPWSTR;
2402 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2404 return MONO_NATIVE_LPWSTR;
2406 return MONO_NATIVE_LPSTR;
2409 return MONO_NATIVE_LPSTR;
2413 static MonoMarshalConv
2414 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2416 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2419 case MONO_NATIVE_LPWSTR:
2420 return MONO_MARSHAL_CONV_STR_LPWSTR;
2421 case MONO_NATIVE_LPSTR:
2422 case MONO_NATIVE_VBBYREFSTR:
2423 return MONO_MARSHAL_CONV_STR_LPSTR;
2424 case MONO_NATIVE_LPTSTR:
2425 return MONO_MARSHAL_CONV_STR_LPTSTR;
2426 case MONO_NATIVE_BSTR:
2427 return MONO_MARSHAL_CONV_STR_BSTR;
2429 return MONO_MARSHAL_CONV_INVALID;
2433 static MonoMarshalConv
2434 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2436 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2439 case MONO_NATIVE_LPWSTR:
2440 return MONO_MARSHAL_CONV_SB_LPWSTR;
2442 case MONO_NATIVE_LPSTR:
2443 return MONO_MARSHAL_CONV_SB_LPSTR;
2445 case MONO_NATIVE_LPTSTR:
2446 return MONO_MARSHAL_CONV_SB_LPTSTR;
2449 return MONO_MARSHAL_CONV_INVALID;
2453 static MonoMarshalConv
2454 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2456 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2461 case MONO_NATIVE_LPWSTR:
2463 return MONO_MARSHAL_CONV_LPWSTR_STR;
2464 case MONO_NATIVE_LPSTR:
2465 case MONO_NATIVE_VBBYREFSTR:
2466 return MONO_MARSHAL_CONV_LPSTR_STR;
2467 case MONO_NATIVE_LPTSTR:
2468 return MONO_MARSHAL_CONV_LPTSTR_STR;
2469 case MONO_NATIVE_BSTR:
2470 return MONO_MARSHAL_CONV_BSTR_STR;
2472 return MONO_MARSHAL_CONV_INVALID;
2476 static MonoMarshalConv
2477 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2479 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2484 case MONO_NATIVE_LPWSTR:
2486 * mono_string_builder_to_utf16 does not allocate a
2487 * new buffer, so no need to free it.
2490 return MONO_MARSHAL_CONV_LPWSTR_SB;
2491 case MONO_NATIVE_LPSTR:
2492 return MONO_MARSHAL_CONV_LPSTR_SB;
2494 case MONO_NATIVE_LPTSTR:
2495 return MONO_MARSHAL_CONV_LPTSTR_SB;
2498 return MONO_MARSHAL_CONV_INVALID;
2503 * Return whenever a field of a native structure or an array member needs to
2507 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2509 MonoMarshalNative encoding;
2512 case MONO_TYPE_VALUETYPE:
2513 /* FIXME: Optimize this */
2515 case MONO_TYPE_OBJECT:
2516 case MONO_TYPE_CLASS:
2517 if (t->data.klass == mono_defaults.stringbuilder_class) {
2519 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2523 case MONO_TYPE_STRING:
2524 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2525 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2532 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2535 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2538 mono_marshal_lock ();
2541 g_hash_table_new (hash_func, equal_func);
2542 mono_memory_barrier ();
2545 mono_marshal_unlock ();
2551 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2553 return get_cache (var, hash_func, equal_func);
2557 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2561 mono_marshal_lock ();
2562 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2563 mono_marshal_unlock ();
2570 * Create a MonoMethod from MB, set INFO as wrapper info.
2573 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2574 int max_stack, WrapperInfo *info)
2578 res = mono_mb_create_method (mb, sig, max_stack);
2580 mono_marshal_set_wrapper_info (res, info);
2584 /* Create the method from the builder and place it in the cache */
2586 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2587 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2588 int max_stack, WrapperInfo *info, gboolean *out_found)
2595 mono_marshal_lock ();
2596 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2597 mono_marshal_unlock ();
2600 newm = mono_mb_create_method (mb, sig, max_stack);
2601 mono_marshal_lock ();
2602 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2605 g_hash_table_insert (cache, key, res);
2606 mono_marshal_set_wrapper_info (res, info);
2607 mono_marshal_unlock ();
2611 mono_marshal_unlock ();
2612 mono_free_method (newm);
2620 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2621 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2624 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2628 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2631 int wrapper_type = wrapper->wrapper_type;
2634 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2637 info = mono_marshal_get_wrapper_info (wrapper);
2639 switch (wrapper_type) {
2640 case MONO_WRAPPER_REMOTING_INVOKE:
2641 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2642 case MONO_WRAPPER_XDOMAIN_INVOKE:
2643 m = info->d.remoting.method;
2644 if (wrapper->is_inflated) {
2648 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2649 * contains an uninflated method.
2651 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2652 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2656 case MONO_WRAPPER_SYNCHRONIZED:
2657 m = info->d.synchronized.method;
2658 if (wrapper->is_inflated) {
2661 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2662 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2666 case MONO_WRAPPER_UNBOX:
2667 return info->d.unbox.method;
2668 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2669 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2670 return info->d.managed_to_native.method;
2673 case MONO_WRAPPER_RUNTIME_INVOKE:
2674 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2675 return info->d.runtime_invoke.method;
2684 * mono_marshal_get_wrapper_info:
2686 * Retrieve the WrapperInfo structure associated with WRAPPER.
2689 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2691 g_assert (wrapper->wrapper_type);
2693 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2697 * mono_marshal_set_wrapper_info:
2699 * Set the WrapperInfo structure associated with the wrapper
2700 * method METHOD to INFO.
2703 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2707 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2710 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2715 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2719 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2720 info->subtype = subtype;
2725 * get_wrapper_target_class:
2727 * Return the class where a wrapper method should be placed.
2730 get_wrapper_target_class (MonoImage *image)
2737 * - can't put all wrappers into an mscorlib class, because they reference
2738 * metadata (signature) so they should be put into the same image as the
2739 * method they wrap, so they are unloaded together.
2740 * - putting them into a class with a type initalizer could cause the
2741 * initializer to be executed which can be a problem if the wrappers are
2743 * - putting them into an inflated class can cause problems if the the
2744 * class is deleted because it references an image which is unloaded.
2745 * To avoid these problems, we put the wrappers into the <Module> class of
2748 if (image_is_dynamic (image)) {
2749 klass = ((MonoDynamicImage*)image)->wrappers_type;
2751 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2752 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2760 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2761 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2765 * check_generic_wrapper_cache:
2767 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2768 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2769 * generic method definition.
2772 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2775 MonoMethod *inst, *def;
2776 MonoGenericContext *ctx;
2778 g_assert (orig_method->is_inflated);
2779 ctx = mono_method_get_context (orig_method);
2782 * Look for the instance
2784 res = mono_marshal_find_in_cache (cache, key);
2789 * Look for the definition
2791 def = mono_marshal_find_in_cache (cache, def_key);
2794 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2795 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2797 mono_memory_barrier ();
2798 mono_marshal_lock ();
2799 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2801 g_hash_table_insert (cache, key, inst);
2804 mono_marshal_unlock ();
2811 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2814 MonoMethod *inst, *res;
2817 * We use the same cache for the generic definition and the instances.
2819 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2820 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2821 mono_memory_barrier ();
2822 mono_marshal_lock ();
2823 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2825 g_hash_table_insert (cache, key, inst);
2828 mono_marshal_unlock ();
2833 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2837 MonoMethod *inst, *def;
2840 * Look for the instance
2842 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2847 * Look for the definition
2849 def = mono_marshal_find_in_cache (cache, def_method->klass);
2851 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2852 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2855 mono_memory_barrier ();
2856 mono_marshal_lock ();
2857 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2859 g_hash_table_insert (cache, orig_method->klass, inst);
2862 mono_marshal_unlock ();
2869 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2872 MonoMethod *inst, *res;
2875 * We use the same cache for the generic definition and the instances.
2877 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2878 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2880 mono_memory_barrier ();
2881 mono_marshal_lock ();
2882 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2884 g_hash_table_insert (cache, orig_method->klass, inst);
2887 mono_marshal_unlock ();
2892 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2894 MonoMethodSignature *sig;
2895 MonoMethodBuilder *mb;
2900 MonoGenericContext *ctx = NULL;
2901 MonoMethod *orig_method = NULL;
2903 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2904 !strcmp (method->name, "BeginInvoke"));
2907 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2909 if (method->is_inflated) {
2910 orig_method = method;
2911 ctx = &((MonoMethodInflated*)method)->context;
2912 method = ((MonoMethodInflated*)method)->declaring;
2915 sig = mono_signature_no_pinvoke (method);
2921 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2922 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2926 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2927 (GHashFunc)mono_signature_hash,
2928 (GCompareFunc)mono_metadata_signature_equal);
2929 if ((res = mono_marshal_find_in_cache (cache, sig)))
2933 g_assert (sig->hasthis);
2935 name = mono_signature_to_name (sig, "begin_invoke");
2937 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2939 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2943 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2945 mono_mb_emit_ldarg (mb, 0);
2946 mono_mb_emit_ldloc (mb, params_var);
2947 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2948 mono_mb_emit_byte (mb, CEE_RET);
2953 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2954 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2956 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2963 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2965 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2968 MonoDomain *domain = mono_domain_get ();
2969 MonoAsyncResult *ares;
2970 MonoMethod *method = NULL;
2971 MonoMethodSignature *sig;
2972 MonoMethodMessage *msg;
2973 MonoObject *res, *exc;
2974 MonoArray *out_args;
2977 g_assert (delegate);
2979 if (!delegate->method_info) {
2980 g_assert (delegate->method);
2981 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2982 if (!mono_error_ok (&error)) {
2983 mono_error_set_pending_exception (&error);
2986 MONO_OBJECT_SETREF (delegate, method_info, rm);
2989 if (!delegate->method_info || !delegate->method_info->method)
2990 g_assert_not_reached ();
2992 klass = delegate->object.vtable->klass;
2994 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2995 g_assert (method != NULL);
2997 sig = mono_signature_no_pinvoke (method);
2999 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
3000 if (mono_error_set_pending_exception (&error))
3003 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
3005 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."));
3009 if (ares->async_delegate != (MonoObject*)delegate) {
3010 mono_set_pending_exception (mono_get_exception_invalid_operation (
3011 "The IAsyncResult object provided does not match this delegate."));
3015 #ifndef DISABLE_REMOTING
3016 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3017 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3018 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3019 if (!mono_error_ok (&error)) {
3020 mono_error_set_pending_exception (&error);
3023 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3024 if (mono_error_set_pending_exception (&error))
3026 msg->call_type = CallType_EndInvoke;
3027 MONO_OBJECT_SETREF (msg, async_result, ares);
3028 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3029 if (!mono_error_ok (&error)) {
3030 mono_error_set_pending_exception (&error);
3036 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc, &error);
3037 if (mono_error_set_pending_exception (&error))
3042 if (((MonoException*)exc)->stack_trace) {
3043 MonoError inner_error;
3044 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3045 if (is_ok (&inner_error)) {
3047 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3049 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3052 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3054 mono_set_pending_exception ((MonoException*)exc);
3057 mono_method_return_message_restore (method, params, out_args, &error);
3058 mono_error_set_pending_exception (&error);
3065 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3067 MonoType *t = mono_type_get_underlying_type (return_type);
3069 if (return_type->byref)
3070 return_type = &mono_defaults.int_class->byval_arg;
3073 case MONO_TYPE_VOID:
3074 g_assert_not_reached ();
3077 case MONO_TYPE_STRING:
3078 case MONO_TYPE_CLASS:
3079 case MONO_TYPE_OBJECT:
3080 case MONO_TYPE_ARRAY:
3081 case MONO_TYPE_SZARRAY:
3085 case MONO_TYPE_BOOLEAN:
3088 case MONO_TYPE_CHAR:
3098 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3099 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3101 case MONO_TYPE_GENERICINST:
3102 if (!mono_type_generic_inst_is_valuetype (t))
3105 case MONO_TYPE_VALUETYPE: {
3106 MonoClass *klass = mono_class_from_mono_type (return_type);
3107 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3108 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3112 case MONO_TYPE_MVAR: {
3113 MonoClass *klass = mono_class_from_mono_type (return_type);
3114 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3118 g_warning ("type 0x%x not handled", return_type->type);
3119 g_assert_not_reached ();
3122 mono_mb_emit_byte (mb, CEE_RET);
3125 #endif /* DISABLE_JIT */
3128 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3130 MonoMethodSignature *sig;
3131 MonoMethodBuilder *mb;
3136 MonoGenericContext *ctx = NULL;
3137 MonoMethod *orig_method = NULL;
3139 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3140 !strcmp (method->name, "EndInvoke"));
3143 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3145 if (method->is_inflated) {
3146 orig_method = method;
3147 ctx = &((MonoMethodInflated*)method)->context;
3148 method = ((MonoMethodInflated*)method)->declaring;
3151 sig = mono_signature_no_pinvoke (method);
3157 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3158 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3162 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3163 (GHashFunc)mono_signature_hash,
3164 (GCompareFunc)mono_metadata_signature_equal);
3165 if ((res = mono_marshal_find_in_cache (cache, sig)))
3169 g_assert (sig->hasthis);
3171 name = mono_signature_to_name (sig, "end_invoke");
3173 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3175 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3179 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3181 mono_mb_emit_ldarg (mb, 0);
3182 mono_mb_emit_ldloc (mb, params_var);
3183 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3185 if (sig->ret->type == MONO_TYPE_VOID) {
3186 mono_mb_emit_byte (mb, CEE_POP);
3187 mono_mb_emit_byte (mb, CEE_RET);
3189 mono_mb_emit_restore_result (mb, sig->ret);
3194 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3195 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3197 res = mono_mb_create_and_cache (cache, sig,
3198 mb, sig, sig->param_count + 16);
3207 MonoMethodSignature *sig;
3209 } SignaturePointerPair;
3212 signature_pointer_pair_hash (gconstpointer data)
3214 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3216 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3220 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3222 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3223 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3227 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3229 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3231 return pair->pointer == user_data;
3235 free_signature_pointer_pair (SignaturePointerPair *pair)
3241 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3243 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3245 MonoMethodBuilder *mb;
3248 gpointer cache_key = NULL;
3249 SignaturePointerPair key;
3250 SignaturePointerPair *new_key;
3251 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3252 int pos0, pos1, pos2;
3254 MonoClass *target_class = NULL;
3255 gboolean closed_over_null = FALSE;
3256 MonoGenericContext *ctx = NULL;
3257 MonoGenericContainer *container = NULL;
3258 MonoMethod *orig_method = NULL;
3260 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3264 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3265 !strcmp (method->name, "Invoke"));
3267 invoke_sig = sig = mono_signature_no_pinvoke (method);
3270 * If the delegate target is null, and the target method is not static, a virtual
3271 * call is made to that method with the first delegate argument as this. This is
3272 * a non-documented .NET feature.
3275 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3276 if (target_method->is_inflated) {
3278 MonoType *target_type;
3280 g_assert (method->signature->hasthis);
3281 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3282 mono_method_get_context (method), &error);
3283 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3284 target_class = mono_class_from_mono_type (target_type);
3286 target_class = target_method->klass;
3289 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3292 if (static_method_with_first_arg_bound) {
3293 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3294 g_assert (!callvirt);
3295 invoke_sig = mono_method_signature (target_method);
3299 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3301 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3302 orig_method = method;
3303 ctx = &((MonoMethodInflated*)method)->context;
3304 method = ((MonoMethodInflated*)method)->declaring;
3306 container = mono_method_get_generic_container (method);
3308 container = method->klass->generic_container;
3309 g_assert (container);
3311 invoke_sig = sig = mono_signature_no_pinvoke (method);
3318 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3319 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3322 cache_key = method->klass;
3323 } else if (static_method_with_first_arg_bound) {
3324 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3325 (GHashFunc)mono_signature_hash,
3326 (GCompareFunc)mono_metadata_signature_equal);
3328 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3330 res = mono_marshal_find_in_cache (cache, invoke_sig);
3333 cache_key = invoke_sig;
3334 } else if (callvirt) {
3335 GHashTable **cache_ptr;
3337 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3339 /* We need to cache the signature+method pair */
3340 mono_marshal_lock ();
3342 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3344 key.sig = invoke_sig;
3345 key.pointer = target_method;
3346 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3347 mono_marshal_unlock ();
3351 // Inflated methods should not be in this cache because it's not stored on the imageset.
3352 g_assert (!method->is_inflated);
3353 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3354 (GHashFunc)mono_signature_hash,
3355 (GCompareFunc)mono_metadata_signature_equal);
3356 res = mono_marshal_find_in_cache (cache, sig);
3362 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3363 static_sig->hasthis = 0;
3364 if (!static_method_with_first_arg_bound)
3365 invoke_sig = static_sig;
3367 if (static_method_with_first_arg_bound)
3368 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3369 else if (closed_over_null)
3370 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3372 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3374 name = mono_signature_to_name (invoke_sig, "invoke");
3376 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3378 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3382 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3384 /* allocate local 0 (object) */
3385 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3386 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3387 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3388 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3389 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3392 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3394 g_assert (sig->hasthis);
3397 * {type: sig->ret} res;
3398 * if (delegates == null) {
3399 * return this.<target> ( args .. );
3401 * int i = 0, len = this.delegates.Length;
3403 * res = this.delegates [i].Invoke ( args .. );
3404 * } while (++i < len);
3409 /* this wrapper can be used in unmanaged-managed transitions */
3410 emit_thread_interrupt_checkpoint (mb);
3412 /* delegates = this.delegates */
3413 mono_mb_emit_ldarg (mb, 0);
3414 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3415 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3416 mono_mb_emit_stloc (mb, local_delegates);
3418 /* if (delegates == null) */
3419 mono_mb_emit_ldloc (mb, local_delegates);
3420 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3422 /* return target.<target_method|method_ptr> ( args .. ); */
3424 /* target = d.target; */
3425 mono_mb_emit_ldarg (mb, 0);
3426 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3427 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3428 mono_mb_emit_stloc (mb, local_target);
3430 /*static methods with bound first arg can have null target and still be bound*/
3431 if (!static_method_with_first_arg_bound) {
3432 /* if target != null */
3433 mono_mb_emit_ldloc (mb, local_target);
3434 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3436 /* then call this->method_ptr nonstatic */
3439 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3441 mono_mb_emit_ldloc (mb, local_target);
3442 for (i = 0; i < sig->param_count; ++i)
3443 mono_mb_emit_ldarg (mb, i + 1);
3444 mono_mb_emit_ldarg (mb, 0);
3445 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3446 mono_mb_emit_byte (mb, CEE_LDIND_I);
3447 mono_mb_emit_ldarg (mb, 0);
3448 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3449 mono_mb_emit_byte (mb, CEE_LDIND_I);
3450 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3451 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3452 mono_mb_emit_byte (mb, CEE_RET);
3455 /* else [target == null] call this->method_ptr static */
3456 mono_mb_patch_branch (mb, pos0);
3460 if (!closed_over_null) {
3461 if (target_class->valuetype) {
3462 mono_mb_emit_ldarg (mb, 1);
3463 for (i = 1; i < sig->param_count; ++i)
3464 mono_mb_emit_ldarg (mb, i + 1);
3465 mono_mb_emit_op (mb, CEE_CALL, target_method);
3467 mono_mb_emit_ldarg (mb, 1);
3468 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3469 for (i = 1; i < sig->param_count; ++i)
3470 mono_mb_emit_ldarg (mb, i + 1);
3471 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3474 mono_mb_emit_byte (mb, CEE_LDNULL);
3475 for (i = 0; i < sig->param_count; ++i)
3476 mono_mb_emit_ldarg (mb, i + 1);
3477 mono_mb_emit_op (mb, CEE_CALL, target_method);
3480 if (static_method_with_first_arg_bound) {
3481 mono_mb_emit_ldloc (mb, local_target);
3482 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3483 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3485 for (i = 0; i < sig->param_count; ++i)
3486 mono_mb_emit_ldarg (mb, i + 1);
3487 mono_mb_emit_ldarg (mb, 0);
3488 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3489 mono_mb_emit_byte (mb, CEE_LDIND_I);
3490 mono_mb_emit_ldarg (mb, 0);
3491 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3492 mono_mb_emit_byte (mb, CEE_LDIND_I);
3493 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3494 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3497 mono_mb_emit_byte (mb, CEE_RET);
3499 /* else [delegates != null] */
3500 mono_mb_patch_branch (mb, pos2);
3502 /* len = delegates.Length; */
3503 mono_mb_emit_ldloc (mb, local_delegates);
3504 mono_mb_emit_byte (mb, CEE_LDLEN);
3505 mono_mb_emit_byte (mb, CEE_CONV_I4);
3506 mono_mb_emit_stloc (mb, local_len);
3509 mono_mb_emit_icon (mb, 0);
3510 mono_mb_emit_stloc (mb, local_i);
3512 pos1 = mono_mb_get_label (mb);
3514 /* d = delegates [i]; */
3515 mono_mb_emit_ldloc (mb, local_delegates);
3516 mono_mb_emit_ldloc (mb, local_i);
3517 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3518 mono_mb_emit_stloc (mb, local_d);
3520 /* res = d.Invoke ( args .. ); */
3521 mono_mb_emit_ldloc (mb, local_d);
3522 for (i = 0; i < sig->param_count; i++)
3523 mono_mb_emit_ldarg (mb, i + 1);
3525 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3528 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3529 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3532 mono_mb_emit_stloc (mb, local_res);
3535 mono_mb_emit_add_to_local (mb, local_i, 1);
3538 mono_mb_emit_ldloc (mb, local_i);
3539 mono_mb_emit_ldloc (mb, local_len);
3540 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3544 mono_mb_emit_ldloc (mb, local_res);
3545 mono_mb_emit_byte (mb, CEE_RET);
3547 mb->skip_visibility = 1;
3548 #endif /* DISABLE_JIT */
3550 info = mono_wrapper_info_create (mb, subtype);
3551 info->d.delegate_invoke.method = method;
3556 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3557 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3558 } else if (callvirt) {
3559 new_key = g_new0 (SignaturePointerPair, 1);
3562 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3566 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3570 /* mono_method_print_code (res); */
3576 * the returned method invokes all methods in a multicast delegate.
3579 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3581 gboolean callvirt = FALSE;
3582 gboolean static_method_with_first_arg_bound = FALSE;
3583 MonoMethod *target_method = NULL;
3584 MonoMethodSignature *sig;
3586 sig = mono_signature_no_pinvoke (method);
3588 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3590 target_method = del->method;
3593 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3594 static_method_with_first_arg_bound = TRUE;
3595 target_method = del->method;
3598 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3602 MonoMethodSignature *ctor_sig;
3603 MonoMethodSignature *sig;
3606 /* protected by the marshal lock, contains CtorSigPair pointers */
3607 static GSList *strsig_list = NULL;
3609 static MonoMethodSignature *
3610 lookup_string_ctor_signature (MonoMethodSignature *sig)
3612 MonoMethodSignature *callsig;
3616 mono_marshal_lock ();
3618 for (item = strsig_list; item; item = item->next) {
3619 cs = (CtorSigPair *)item->data;
3620 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3621 * because it is lock-free.
3623 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3628 mono_marshal_unlock ();
3632 static MonoMethodSignature *
3633 add_string_ctor_signature (MonoMethod *method)
3635 MonoMethodSignature *callsig;
3638 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3639 callsig->ret = &mono_defaults.string_class->byval_arg;
3640 cs = g_new (CtorSigPair, 1);
3642 cs->ctor_sig = mono_method_signature (method);
3644 mono_marshal_lock ();
3645 strsig_list = g_slist_prepend (strsig_list, cs);
3646 mono_marshal_unlock ();
3651 * mono_marshal_get_string_ctor_signature:
3653 * Return the modified signature used by string ctors (they return the newly created
3656 MonoMethodSignature*
3657 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3659 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3661 sig = add_string_ctor_signature (method);
3667 get_runtime_invoke_type (MonoType *t, gboolean ret)
3670 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3672 /* Can't share this with 'I' as that needs another indirection */
3673 return &mono_defaults.int_class->this_arg;
3676 if (MONO_TYPE_IS_REFERENCE (t))
3677 return &mono_defaults.object_class->byval_arg;
3680 /* The result needs to be boxed */
3685 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3688 return &mono_defaults.sbyte_class->byval_arg;
3690 return &mono_defaults.int16_class->byval_arg;
3692 return &mono_defaults.int32_class->byval_arg;
3695 return &mono_defaults.int64_class->byval_arg;
3696 case MONO_TYPE_BOOLEAN:
3697 return &mono_defaults.byte_class->byval_arg;
3698 case MONO_TYPE_CHAR:
3699 return &mono_defaults.uint16_class->byval_arg;
3701 return &mono_defaults.int_class->byval_arg;
3702 case MONO_TYPE_VALUETYPE:
3703 if (t->data.klass->enumtype) {
3704 t = mono_class_enum_basetype (t->data.klass);
3714 * mono_marshal_get_runtime_invoke_sig:
3716 * Return a common signature used for sharing runtime invoke wrappers.
3718 static MonoMethodSignature*
3719 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3721 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3724 res->generic_param_count = 0;
3725 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3726 for (i = 0; i < res->param_count; ++i)
3727 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3733 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3735 /* Can't share wrappers which return a vtype since it needs to be boxed */
3736 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))
3739 return mono_metadata_signature_equal (sig1, sig2);
3747 * Emit the call to the wrapper method from a runtime invoke wrapper.
3750 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3751 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3753 gboolean virtual_, gboolean need_direct_wrapper)
3755 static MonoString *string_dummy = NULL;
3757 int *tmp_nullable_locals;
3758 gboolean void_ret = FALSE;
3759 gboolean string_ctor = method && method->string_ctor;
3761 /* to make it work with our special string constructors */
3762 if (!string_dummy) {
3763 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3764 string_dummy = mono_string_new_wrapper ("dummy");
3768 g_assert (sig->hasthis);
3769 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3774 if (mono_gc_is_moving ()) {
3775 mono_mb_emit_ptr (mb, &string_dummy);
3776 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3778 mono_mb_emit_ptr (mb, string_dummy);
3781 mono_mb_emit_ldarg (mb, 0);
3785 tmp_nullable_locals = g_new0 (int, sig->param_count);
3787 for (i = 0; i < sig->param_count; i++) {
3788 MonoType *t = sig->params [i];
3791 mono_mb_emit_ldarg (mb, 1);
3793 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3794 mono_mb_emit_byte (mb, CEE_ADD);
3798 mono_mb_emit_byte (mb, CEE_LDIND_I);
3799 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3800 * So to make this work we unbox it to a local variablee and push a reference to that.
3802 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3803 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3805 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3806 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3807 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3812 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3813 type = sig->params [i]->type;
3817 case MONO_TYPE_BOOLEAN:
3821 case MONO_TYPE_CHAR:
3830 mono_mb_emit_byte (mb, CEE_LDIND_I);
3831 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3833 case MONO_TYPE_STRING:
3834 case MONO_TYPE_CLASS:
3835 case MONO_TYPE_ARRAY:
3837 case MONO_TYPE_SZARRAY:
3838 case MONO_TYPE_OBJECT:
3839 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3841 case MONO_TYPE_GENERICINST:
3842 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3843 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3848 case MONO_TYPE_VALUETYPE:
3849 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3850 type = mono_class_enum_basetype (t->data.klass)->type;
3853 mono_mb_emit_byte (mb, CEE_LDIND_I);
3854 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3855 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3856 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3857 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3859 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3863 g_assert_not_reached ();
3868 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3869 } else if (need_direct_wrapper) {
3870 mono_mb_emit_op (mb, CEE_CALL, method);
3872 mono_mb_emit_ldarg (mb, 3);
3873 mono_mb_emit_calli (mb, callsig);
3876 if (sig->ret->byref) {
3878 g_assert_not_reached ();
3881 switch (sig->ret->type) {
3882 case MONO_TYPE_VOID:
3886 case MONO_TYPE_BOOLEAN:
3887 case MONO_TYPE_CHAR:
3900 case MONO_TYPE_VALUETYPE:
3901 case MONO_TYPE_TYPEDBYREF:
3902 case MONO_TYPE_GENERICINST:
3903 /* box value types */
3904 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3906 case MONO_TYPE_STRING:
3907 case MONO_TYPE_CLASS:
3908 case MONO_TYPE_ARRAY:
3909 case MONO_TYPE_SZARRAY:
3910 case MONO_TYPE_OBJECT:
3914 /* The result is an IntPtr */
3915 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3918 g_assert_not_reached ();
3922 mono_mb_emit_stloc (mb, loc_res);
3924 /* Convert back nullable-byref arguments */
3925 for (i = 0; i < sig->param_count; i++) {
3926 MonoType *t = sig->params [i];
3929 * Box the result and put it back into the array, the caller will have
3930 * to obtain it from there.
3932 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3933 mono_mb_emit_ldarg (mb, 1);
3934 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3935 mono_mb_emit_byte (mb, CEE_ADD);
3937 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3938 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3940 mono_mb_emit_byte (mb, CEE_STIND_REF);
3944 g_free (tmp_nullable_locals);
3948 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3949 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3950 gboolean virtual_, gboolean need_direct_wrapper)
3953 MonoExceptionClause *clause;
3954 int loc_res, loc_exc;
3956 /* The wrapper looks like this:
3962 * } catch (Exception e) {
3970 /* allocate local 0 (object) tmp */
3971 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3972 /* allocate local 1 (object) exc */
3973 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3975 /* *exc is assumed to be initialized to NULL by the caller */
3977 mono_mb_emit_byte (mb, CEE_LDARG_2);
3978 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3983 labels [1] = mono_mb_get_label (mb);
3984 emit_thread_force_interrupt_checkpoint (mb);
3985 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3987 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3989 /* Add a try clause around the call */
3990 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3991 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3992 clause->data.catch_class = mono_defaults.exception_class;
3993 clause->try_offset = labels [1];
3994 clause->try_len = mono_mb_get_label (mb) - labels [1];
3996 clause->handler_offset = mono_mb_get_label (mb);
3999 mono_mb_emit_stloc (mb, loc_exc);
4000 mono_mb_emit_byte (mb, CEE_LDARG_2);
4001 mono_mb_emit_ldloc (mb, loc_exc);
4002 mono_mb_emit_byte (mb, CEE_STIND_REF);
4004 mono_mb_emit_branch (mb, CEE_LEAVE);
4006 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4008 mono_mb_set_clauses (mb, 1, clause);
4010 mono_mb_patch_branch (mb, labels [2]);
4011 mono_mb_emit_ldloc (mb, loc_res);
4012 mono_mb_emit_byte (mb, CEE_RET);
4017 mono_mb_patch_branch (mb, labels [0]);
4018 emit_thread_force_interrupt_checkpoint (mb);
4019 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4021 mono_mb_emit_ldloc (mb, 0);
4022 mono_mb_emit_byte (mb, CEE_RET);
4027 * generates IL code for the runtime invoke function
4028 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
4030 * we also catch exceptions if exc != null
4031 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4032 * it means that the compiled code for METHOD does not have to be looked up
4033 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4034 * its METHOD argument.
4037 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4039 MonoMethodSignature *sig, *csig, *callsig;
4040 MonoMethodBuilder *mb;
4041 GHashTable *cache = NULL;
4042 MonoClass *target_klass;
4043 MonoMethod *res = NULL;
4044 static MonoMethodSignature *cctor_signature = NULL;
4045 static MonoMethodSignature *finalize_signature = NULL;
4047 const char *param_names [16];
4048 gboolean need_direct_wrapper = FALSE;
4053 if (!cctor_signature) {
4054 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4055 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4057 if (!finalize_signature) {
4058 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4059 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4060 finalize_signature->hasthis = 1;
4064 need_direct_wrapper = TRUE;
4067 * Use a separate cache indexed by methods to speed things up and to avoid the
4068 * boundless mempool growth caused by the signature_dup stuff below.
4071 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4073 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4075 res = mono_marshal_find_in_cache (cache, method);
4079 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4080 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4082 * Array Get/Set/Address methods. The JIT implements them using inline code
4083 * so we need to create an invoke wrapper which calls the method directly.
4085 need_direct_wrapper = TRUE;
4088 if (method->string_ctor) {
4089 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4091 callsig = add_string_ctor_signature (method);
4092 /* Can't share this as we push a string as this */
4093 need_direct_wrapper = TRUE;
4095 if (method_is_dynamic (method))
4096 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4098 callsig = mono_method_signature (method);
4101 sig = mono_method_signature (method);
4103 target_klass = get_wrapper_target_class (method->klass->image);
4105 /* Try to share wrappers for non-corlib methods with simple signatures */
4106 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4107 callsig = cctor_signature;
4108 target_klass = mono_defaults.object_class;
4109 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4110 callsig = finalize_signature;
4111 target_klass = mono_defaults.object_class;
4114 if (need_direct_wrapper) {
4115 /* Already searched at the start */
4117 MonoMethodSignature *tmp_sig;
4119 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4120 GHashTable **cache_table = NULL;
4122 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4123 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4125 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4127 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4128 (GCompareFunc)runtime_invoke_signature_equal);
4130 /* from mono_marshal_find_in_cache */
4131 mono_marshal_lock ();
4132 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4133 mono_marshal_unlock ();
4140 /* Make a copy of the signature from the image mempool */
4142 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4146 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4148 csig->ret = &mono_defaults.object_class->byval_arg;
4149 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4150 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4152 csig->params [0] = &mono_defaults.object_class->byval_arg;
4153 csig->params [1] = &mono_defaults.int_class->byval_arg;
4154 csig->params [2] = &mono_defaults.int_class->byval_arg;
4155 csig->params [3] = &mono_defaults.int_class->byval_arg;
4158 /* This is called from runtime code so it has to be cdecl */
4159 csig->call_convention = MONO_CALL_C;
4162 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4163 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4167 param_names [0] = "this";
4168 param_names [1] = "params";
4169 param_names [2] = "exc";
4170 param_names [3] = "method";
4171 mono_mb_set_param_names (mb, param_names);
4173 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4176 if (need_direct_wrapper) {
4178 mb->skip_visibility = 1;
4180 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4181 info->d.runtime_invoke.method = method;
4182 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4184 /* taken from mono_mb_create_and_cache */
4185 mono_marshal_lock ();
4186 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4187 mono_marshal_unlock ();
4189 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4190 info->d.runtime_invoke.sig = callsig;
4192 /* Somebody may have created it before us */
4195 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4197 mono_marshal_lock ();
4198 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4200 GHashTable *direct_cache;
4202 g_hash_table_insert (cache, callsig, res);
4203 /* Can't insert it into wrapper_hash since the key is a signature */
4204 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4206 g_hash_table_insert (direct_cache, method, res);
4208 mono_free_method (newm);
4210 mono_marshal_unlock ();
4213 /* end mono_mb_create_and_cache */
4222 * mono_marshal_get_runtime_invoke_dynamic:
4224 * Return a method which can be used to invoke managed methods from native code
4226 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4227 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4228 * ARGS should point to an architecture specific structure containing
4229 * the arguments and space for the return value.
4230 * The other arguments are the same as for runtime_invoke (), except that
4231 * ARGS should contain the this argument too.
4232 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4233 * is only one copy of it, which is useful in full-aot.
4236 mono_marshal_get_runtime_invoke_dynamic (void)
4238 static MonoMethod *method;
4239 MonoMethodSignature *csig;
4240 MonoExceptionClause *clause;
4241 MonoMethodBuilder *mb;
4249 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4251 csig->ret = &mono_defaults.void_class->byval_arg;
4252 csig->params [0] = &mono_defaults.int_class->byval_arg;
4253 csig->params [1] = &mono_defaults.int_class->byval_arg;
4254 csig->params [2] = &mono_defaults.int_class->byval_arg;
4255 csig->params [3] = &mono_defaults.int_class->byval_arg;
4257 name = g_strdup ("runtime_invoke_dynamic");
4258 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4262 /* allocate local 0 (object) tmp */
4263 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4264 /* allocate local 1 (object) exc */
4265 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4267 /* cond set *exc to null */
4268 mono_mb_emit_byte (mb, CEE_LDARG_1);
4269 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4270 mono_mb_emit_byte (mb, 3);
4271 mono_mb_emit_byte (mb, CEE_LDARG_1);
4272 mono_mb_emit_byte (mb, CEE_LDNULL);
4273 mono_mb_emit_byte (mb, CEE_STIND_REF);
4275 emit_thread_force_interrupt_checkpoint (mb);
4277 mono_mb_emit_byte (mb, CEE_LDARG_0);
4278 mono_mb_emit_byte (mb, CEE_LDARG_2);
4279 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4280 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4282 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4284 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4285 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4286 clause->try_len = mono_mb_get_label (mb);
4289 clause->data.filter_offset = mono_mb_get_label (mb);
4291 mono_mb_emit_byte (mb, CEE_POP);
4292 mono_mb_emit_byte (mb, CEE_LDARG_1);
4293 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4294 mono_mb_emit_byte (mb, CEE_PREFIX1);
4295 mono_mb_emit_byte (mb, CEE_CGT_UN);
4296 mono_mb_emit_byte (mb, CEE_PREFIX1);
4297 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4299 clause->handler_offset = mono_mb_get_label (mb);
4302 /* store exception */
4303 mono_mb_emit_stloc (mb, 1);
4305 mono_mb_emit_byte (mb, CEE_LDARG_1);
4306 mono_mb_emit_ldloc (mb, 1);
4307 mono_mb_emit_byte (mb, CEE_STIND_REF);
4309 mono_mb_emit_byte (mb, CEE_LDNULL);
4310 mono_mb_emit_stloc (mb, 0);
4312 /* Check for the abort exception */
4313 mono_mb_emit_ldloc (mb, 1);
4314 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4315 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4317 /* Delay the abort exception */
4318 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4320 mono_mb_patch_short_branch (mb, posna);
4321 mono_mb_emit_branch (mb, CEE_LEAVE);
4323 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4325 mono_mb_set_clauses (mb, 1, clause);
4328 mono_mb_patch_branch (mb, pos);
4329 //mono_mb_emit_ldloc (mb, 0);
4330 mono_mb_emit_byte (mb, CEE_RET);
4331 #endif /* DISABLE_JIT */
4333 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4335 mono_marshal_lock ();
4336 /* double-checked locking */
4338 method = mono_mb_create (mb, csig, 16, info);
4340 mono_marshal_unlock ();
4348 * mono_marshal_get_runtime_invoke_for_sig:
4350 * Return a runtime invoke wrapper for a given signature.
4353 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4355 MonoMethodSignature *csig, *callsig;
4356 MonoMethodBuilder *mb;
4358 GHashTable *cache = NULL;
4359 GHashTable **cache_table = NULL;
4360 MonoMethod *res = NULL;
4362 const char *param_names [16];
4365 /* A simplified version of mono_marshal_get_runtime_invoke */
4367 image = mono_defaults.corlib;
4369 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4371 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4373 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4374 (GCompareFunc)runtime_invoke_signature_equal);
4376 /* from mono_marshal_find_in_cache */
4377 mono_marshal_lock ();
4378 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4379 mono_marshal_unlock ();
4386 /* Make a copy of the signature from the image mempool */
4387 callsig = mono_metadata_signature_dup_full (image, callsig);
4389 csig = mono_metadata_signature_alloc (image, 4);
4390 csig->ret = &mono_defaults.object_class->byval_arg;
4391 csig->params [0] = &mono_defaults.object_class->byval_arg;
4392 csig->params [1] = &mono_defaults.int_class->byval_arg;
4393 csig->params [2] = &mono_defaults.int_class->byval_arg;
4394 csig->params [3] = &mono_defaults.int_class->byval_arg;
4397 /* This is called from runtime code so it has to be cdecl */
4398 csig->call_convention = MONO_CALL_C;
4401 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4402 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4406 param_names [0] = "this";
4407 param_names [1] = "params";
4408 param_names [2] = "exc";
4409 param_names [3] = "method";
4410 mono_mb_set_param_names (mb, param_names);
4412 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4415 /* taken from mono_mb_create_and_cache */
4416 mono_marshal_lock ();
4417 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4418 mono_marshal_unlock ();
4420 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4421 info->d.runtime_invoke.sig = callsig;
4423 /* Somebody may have created it before us */
4426 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4428 mono_marshal_lock ();
4429 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4432 g_hash_table_insert (cache, callsig, res);
4434 mono_free_method (newm);
4436 mono_marshal_unlock ();
4439 /* end mono_mb_create_and_cache */
4448 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4450 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4451 klass->name_space, klass->name);
4453 mono_mb_emit_exception_marshal_directive (mb, msg);
4458 * generates IL code for the icall wrapper (the generated method
4459 * calls the unmanaged code in func)
4462 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4464 MonoMethodSignature *csig, *csig2;
4465 MonoMethodBuilder *mb;
4470 GHashTable *cache = get_cache (&mono_defaults.object_class->image->icall_wrapper_cache, mono_aligned_addr_hash, NULL);
4471 if ((res = mono_marshal_find_in_cache (cache, (gpointer) func)))
4474 g_assert (sig->pinvoke);
4476 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4478 mb->method->save_lmf = 1;
4480 /* Add an explicit this argument */
4482 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4484 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4488 mono_mb_emit_byte (mb, CEE_LDARG_0);
4490 for (i = 0; i < sig->param_count; i++)
4491 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4493 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4494 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4495 mono_mb_emit_calli (mb, csig2);
4496 if (check_exceptions)
4497 emit_thread_interrupt_checkpoint (mb);
4498 mono_mb_emit_byte (mb, CEE_RET);
4501 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4503 if (csig->call_convention == MONO_CALL_VARARG)
4504 csig->call_convention = 0;
4506 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4507 info->d.icall.func = (gpointer)func;
4508 res = mono_mb_create_and_cache_full (cache, (gpointer) func, mb, csig, csig->param_count + 16, info, NULL);
4515 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4516 MonoMarshalSpec *spec,
4517 int conv_arg, MonoType **conv_arg_type,
4518 MarshalAction action)
4521 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4522 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4528 static MonoClass *ICustomMarshaler = NULL;
4529 static MonoMethod *cleanup_native, *cleanup_managed;
4530 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4531 MonoMethod *get_instance = NULL;
4532 MonoMethodBuilder *mb = m->mb;
4533 char *exception_msg = NULL;
4537 if (!ICustomMarshaler) {
4538 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4540 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4541 goto handle_exception;
4544 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4545 g_assert (cleanup_native);
4546 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4547 g_assert (cleanup_managed);
4548 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4549 g_assert (marshal_managed_to_native);
4550 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4551 g_assert (marshal_native_to_managed);
4553 mono_memory_barrier ();
4554 ICustomMarshaler = klass;
4557 if (spec->data.custom_data.image)
4558 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4560 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4561 g_assert (mtype != NULL);
4562 mono_error_assert_ok (&error);
4563 mklass = mono_class_from_mono_type (mtype);
4564 g_assert (mklass != NULL);
4566 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4567 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4569 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4571 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4572 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4573 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4574 (get_sig->params [0]->type != MONO_TYPE_STRING))
4575 get_instance = NULL;
4579 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);
4582 /* Throw exception and emit compensation code if neccesary */
4583 if (exception_msg) {
4585 case MARSHAL_ACTION_CONV_IN:
4586 case MARSHAL_ACTION_CONV_RESULT:
4587 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4588 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4589 mono_mb_emit_byte (mb, CEE_POP);
4591 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4592 g_free (exception_msg);
4595 case MARSHAL_ACTION_PUSH:
4596 mono_mb_emit_byte (mb, CEE_LDNULL);
4604 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4605 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4608 case MARSHAL_ACTION_CONV_IN:
4610 case MONO_TYPE_CLASS:
4611 case MONO_TYPE_OBJECT:
4612 case MONO_TYPE_STRING:
4613 case MONO_TYPE_ARRAY:
4614 case MONO_TYPE_SZARRAY:
4615 case MONO_TYPE_VALUETYPE:
4619 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4620 g_assert_not_reached ();
4624 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4626 mono_mb_emit_byte (mb, CEE_LDNULL);
4627 mono_mb_emit_stloc (mb, conv_arg);
4629 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4632 /* Minic MS.NET behavior */
4633 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4636 /* Check for null */
4637 mono_mb_emit_ldarg (mb, argnum);
4639 mono_mb_emit_byte (mb, CEE_LDIND_I);
4640 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4642 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4644 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4646 mono_mb_emit_ldarg (mb, argnum);
4648 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4650 if (t->type == MONO_TYPE_VALUETYPE) {
4652 * Since we can't determine the type of the argument, we
4653 * will assume the unmanaged function takes a pointer.
4655 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4657 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4660 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4661 mono_mb_emit_stloc (mb, conv_arg);
4663 mono_mb_patch_branch (mb, pos2);
4666 case MARSHAL_ACTION_CONV_OUT:
4667 /* Check for null */
4668 mono_mb_emit_ldloc (mb, conv_arg);
4669 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4672 mono_mb_emit_ldarg (mb, argnum);
4674 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4676 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4678 mono_mb_emit_ldloc (mb, conv_arg);
4679 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4680 mono_mb_emit_byte (mb, CEE_STIND_REF);
4681 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4682 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4684 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4686 mono_mb_emit_ldloc (mb, conv_arg);
4687 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4689 /* We have nowhere to store the result */
4690 mono_mb_emit_byte (mb, CEE_POP);
4693 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4695 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4697 mono_mb_emit_ldloc (mb, conv_arg);
4699 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4701 mono_mb_patch_branch (mb, pos2);
4704 case MARSHAL_ACTION_PUSH:
4706 mono_mb_emit_ldloc_addr (mb, conv_arg);
4708 mono_mb_emit_ldloc (mb, conv_arg);
4711 case MARSHAL_ACTION_CONV_RESULT:
4712 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4714 mono_mb_emit_stloc (mb, 3);
4716 mono_mb_emit_ldloc (mb, 3);
4717 mono_mb_emit_stloc (mb, loc1);
4719 /* Check for null */
4720 mono_mb_emit_ldloc (mb, 3);
4721 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4723 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4725 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4726 mono_mb_emit_byte (mb, CEE_DUP);
4728 mono_mb_emit_ldloc (mb, 3);
4729 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4730 mono_mb_emit_stloc (mb, 3);
4732 mono_mb_emit_ldloc (mb, loc1);
4733 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4735 mono_mb_patch_branch (mb, pos2);
4738 case MARSHAL_ACTION_MANAGED_CONV_IN:
4739 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4741 mono_mb_emit_byte (mb, CEE_LDNULL);
4742 mono_mb_emit_stloc (mb, conv_arg);
4744 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4747 /* Check for null */
4748 mono_mb_emit_ldarg (mb, argnum);
4750 mono_mb_emit_byte (mb, CEE_LDIND_I);
4751 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4753 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4754 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4756 mono_mb_emit_ldarg (mb, argnum);
4758 mono_mb_emit_byte (mb, CEE_LDIND_I);
4760 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4761 mono_mb_emit_stloc (mb, conv_arg);
4763 mono_mb_patch_branch (mb, pos2);
4766 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4767 g_assert (!t->byref);
4769 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4771 mono_mb_emit_stloc (mb, 3);
4773 mono_mb_emit_ldloc (mb, 3);
4774 mono_mb_emit_stloc (mb, loc1);
4776 /* Check for null */
4777 mono_mb_emit_ldloc (mb, 3);
4778 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4780 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4781 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4782 mono_mb_emit_byte (mb, CEE_DUP);
4784 mono_mb_emit_ldloc (mb, 3);
4785 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4786 mono_mb_emit_stloc (mb, 3);
4788 mono_mb_emit_ldloc (mb, loc1);
4789 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4791 mono_mb_patch_branch (mb, pos2);
4794 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4796 /* Check for null */
4797 mono_mb_emit_ldloc (mb, conv_arg);
4798 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4801 mono_mb_emit_ldarg (mb, argnum);
4803 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4805 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4807 mono_mb_emit_ldloc (mb, conv_arg);
4808 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4809 mono_mb_emit_byte (mb, CEE_STIND_I);
4812 /* Call CleanUpManagedData */
4813 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4815 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4817 mono_mb_emit_ldloc (mb, conv_arg);
4818 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4820 mono_mb_patch_branch (mb, pos2);
4824 g_assert_not_reached ();
4832 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4833 MonoMarshalSpec *spec,
4834 int conv_arg, MonoType **conv_arg_type,
4835 MarshalAction action)
4838 MonoMethodBuilder *mb = m->mb;
4841 case MARSHAL_ACTION_CONV_IN: {
4842 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4844 g_assert (t->type == MONO_TYPE_OBJECT);
4845 g_assert (!t->byref);
4847 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4848 mono_mb_emit_ldarg (mb, argnum);
4849 mono_mb_emit_icon (mb, encoding);
4850 mono_mb_emit_icon (mb, t->attrs);
4851 mono_mb_emit_icall (mb, mono_marshal_asany);
4852 mono_mb_emit_stloc (mb, conv_arg);
4856 case MARSHAL_ACTION_PUSH:
4857 mono_mb_emit_ldloc (mb, conv_arg);
4860 case MARSHAL_ACTION_CONV_OUT: {
4861 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4863 mono_mb_emit_ldarg (mb, argnum);
4864 mono_mb_emit_ldloc (mb, conv_arg);
4865 mono_mb_emit_icon (mb, encoding);
4866 mono_mb_emit_icon (mb, t->attrs);
4867 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4872 g_assert_not_reached ();
4879 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4880 MonoMarshalSpec *spec,
4881 int conv_arg, MonoType **conv_arg_type,
4882 MarshalAction action)
4885 MonoMethodBuilder *mb = m->mb;
4886 MonoClass *klass, *date_time_class;
4889 klass = mono_class_from_mono_type (t);
4891 date_time_class = mono_class_get_date_time_class ();
4894 case MARSHAL_ACTION_CONV_IN:
4895 if (klass == date_time_class) {
4896 /* Convert it to an OLE DATE type */
4897 static MonoMethod *to_oadate;
4900 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4901 g_assert (to_oadate);
4903 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4906 mono_mb_emit_ldarg (mb, argnum);
4907 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4910 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4912 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4914 mono_mb_emit_ldarg_addr (mb, argnum);
4915 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4916 mono_mb_emit_stloc (mb, conv_arg);
4920 mono_mb_patch_branch (mb, pos);
4924 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4925 klass->blittable || klass->enumtype)
4928 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4930 /* store the address of the source into local variable 0 */
4932 mono_mb_emit_ldarg (mb, argnum);
4934 mono_mb_emit_ldarg_addr (mb, argnum);
4936 mono_mb_emit_stloc (mb, 0);
4938 /* allocate space for the native struct and
4939 * store the address into local variable 1 (dest) */
4940 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4941 mono_mb_emit_byte (mb, CEE_PREFIX1);
4942 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4943 mono_mb_emit_stloc (mb, conv_arg);
4946 mono_mb_emit_ldloc (mb, 0);
4947 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4950 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4952 mono_mb_emit_ldloc (mb, conv_arg);
4953 mono_mb_emit_stloc (mb, 1);
4955 /* emit valuetype conversion code */
4956 emit_struct_conv (mb, klass, FALSE);
4960 mono_mb_patch_branch (mb, pos);
4963 case MARSHAL_ACTION_PUSH:
4964 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4966 g_assert (!t->byref);
4968 /* Have to change the signature since the vtype is passed byref */
4969 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4971 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4972 klass->blittable || klass->enumtype)
4973 mono_mb_emit_ldarg_addr (mb, argnum);
4975 mono_mb_emit_ldloc (mb, conv_arg);
4979 if (klass == date_time_class) {
4981 mono_mb_emit_ldloc_addr (mb, conv_arg);
4983 mono_mb_emit_ldloc (mb, conv_arg);
4987 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4988 klass->blittable || klass->enumtype) {
4989 mono_mb_emit_ldarg (mb, argnum);
4992 mono_mb_emit_ldloc (mb, conv_arg);
4994 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4995 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4999 case MARSHAL_ACTION_CONV_OUT:
5000 if (klass == date_time_class) {
5001 /* Convert from an OLE DATE type */
5002 static MonoMethod *from_oadate;
5007 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5009 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5010 g_assert (from_oadate);
5012 mono_mb_emit_ldarg (mb, argnum);
5013 mono_mb_emit_ldloc (mb, conv_arg);
5014 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5015 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5020 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5021 klass->blittable || klass->enumtype)
5025 /* dst = argument */
5026 mono_mb_emit_ldarg (mb, argnum);
5027 mono_mb_emit_stloc (mb, 1);
5029 mono_mb_emit_ldloc (mb, 1);
5030 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5032 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5033 /* src = tmp_locals [i] */
5034 mono_mb_emit_ldloc (mb, conv_arg);
5035 mono_mb_emit_stloc (mb, 0);
5037 /* emit valuetype conversion code */
5038 emit_struct_conv (mb, klass, TRUE);
5042 emit_struct_free (mb, klass, conv_arg);
5045 mono_mb_patch_branch (mb, pos);
5048 case MARSHAL_ACTION_CONV_RESULT:
5049 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5051 mono_mb_emit_stloc (mb, 3);
5055 /* load pointer to returned value type */
5056 g_assert (m->vtaddr_var);
5057 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5058 /* store the address of the source into local variable 0 */
5059 mono_mb_emit_stloc (mb, 0);
5061 mono_mb_emit_ldloc_addr (mb, 3);
5062 mono_mb_emit_stloc (mb, 1);
5064 /* emit valuetype conversion code */
5065 emit_struct_conv (mb, klass, TRUE);
5068 case MARSHAL_ACTION_MANAGED_CONV_IN:
5069 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5070 klass->blittable || klass->enumtype) {
5075 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5077 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5081 mono_mb_emit_ldarg (mb, argnum);
5083 mono_mb_emit_ldarg_addr (mb, argnum);
5084 mono_mb_emit_stloc (mb, 0);
5087 mono_mb_emit_ldloc (mb, 0);
5088 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5091 mono_mb_emit_ldloc_addr (mb, conv_arg);
5092 mono_mb_emit_stloc (mb, 1);
5094 /* emit valuetype conversion code */
5095 emit_struct_conv (mb, klass, TRUE);
5098 mono_mb_patch_branch (mb, pos);
5101 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5102 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5103 klass->blittable || klass->enumtype) {
5107 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5110 /* Check for null */
5111 mono_mb_emit_ldarg (mb, argnum);
5112 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5115 mono_mb_emit_ldloc_addr (mb, conv_arg);
5116 mono_mb_emit_stloc (mb, 0);
5119 mono_mb_emit_ldarg (mb, argnum);
5120 mono_mb_emit_stloc (mb, 1);
5122 /* emit valuetype conversion code */
5123 emit_struct_conv (mb, klass, FALSE);
5125 mono_mb_patch_branch (mb, pos2);
5128 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5129 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5130 klass->blittable || klass->enumtype) {
5131 mono_mb_emit_stloc (mb, 3);
5136 /* load pointer to returned value type */
5137 g_assert (m->vtaddr_var);
5138 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5140 /* store the address of the source into local variable 0 */
5141 mono_mb_emit_stloc (mb, 0);
5142 /* allocate space for the native struct and
5143 * store the address into dst_ptr */
5144 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5145 m->retobj_class = klass;
5146 g_assert (m->retobj_var);
5147 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5148 mono_mb_emit_byte (mb, CEE_CONV_I);
5149 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5150 mono_mb_emit_stloc (mb, 1);
5151 mono_mb_emit_ldloc (mb, 1);
5152 mono_mb_emit_stloc (mb, m->retobj_var);
5154 /* emit valuetype conversion code */
5155 emit_struct_conv (mb, klass, FALSE);
5159 g_assert_not_reached ();
5166 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5167 MonoMarshalSpec *spec,
5168 int conv_arg, MonoType **conv_arg_type,
5169 MarshalAction action)
5173 case MARSHAL_ACTION_CONV_IN:
5174 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5176 case MARSHAL_ACTION_MANAGED_CONV_IN:
5177 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5181 MonoMethodBuilder *mb = m->mb;
5182 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5183 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5187 case MARSHAL_ACTION_CONV_IN:
5188 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5189 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5192 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5195 mono_mb_emit_ldarg (mb, argnum);
5196 mono_mb_emit_byte (mb, CEE_LDIND_I);
5198 mono_mb_emit_ldarg (mb, argnum);
5201 if (conv == MONO_MARSHAL_CONV_INVALID) {
5202 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5203 mono_mb_emit_exception_marshal_directive (mb, msg);
5205 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5207 mono_mb_emit_stloc (mb, conv_arg);
5211 case MARSHAL_ACTION_CONV_OUT:
5212 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5213 if (conv == MONO_MARSHAL_CONV_INVALID) {
5214 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5215 mono_mb_emit_exception_marshal_directive (mb, msg);
5219 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5220 static MonoMethod *m;
5223 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5228 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5229 mono_mb_emit_exception_marshal_directive (mb, msg);
5234 * Have to allocate a new string with the same length as the original, and
5235 * copy the contents of the buffer pointed to by CONV_ARG into it.
5237 g_assert (t->byref);
5238 mono_mb_emit_ldarg (mb, argnum);
5239 mono_mb_emit_ldloc (mb, conv_arg);
5240 mono_mb_emit_ldarg (mb, argnum);
5241 mono_mb_emit_byte (mb, CEE_LDIND_I);
5242 mono_mb_emit_managed_call (mb, m, NULL);
5243 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5244 mono_mb_emit_byte (mb, CEE_STIND_REF);
5245 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5247 mono_mb_emit_ldarg (mb, argnum);
5248 mono_mb_emit_ldloc (mb, conv_arg);
5249 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5250 mono_mb_emit_byte (mb, stind_op);
5255 mono_mb_emit_ldloc (mb, conv_arg);
5256 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5257 mono_mb_emit_icall (mb, mono_free_bstr);
5259 mono_mb_emit_icall (mb, mono_marshal_free);
5263 case MARSHAL_ACTION_PUSH:
5264 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5265 mono_mb_emit_ldloc_addr (mb, conv_arg);
5267 mono_mb_emit_ldloc (mb, conv_arg);
5270 case MARSHAL_ACTION_CONV_RESULT:
5271 mono_mb_emit_stloc (mb, 0);
5273 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5274 if (conv == MONO_MARSHAL_CONV_INVALID) {
5275 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5276 mono_mb_emit_exception_marshal_directive (mb, msg);
5280 mono_mb_emit_ldloc (mb, 0);
5281 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5282 mono_mb_emit_stloc (mb, 3);
5284 /* free the string */
5285 mono_mb_emit_ldloc (mb, 0);
5286 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5287 mono_mb_emit_icall (mb, mono_free_bstr);
5289 mono_mb_emit_icall (mb, mono_marshal_free);
5292 case MARSHAL_ACTION_MANAGED_CONV_IN:
5293 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5295 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5298 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5302 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5303 if (conv == MONO_MARSHAL_CONV_INVALID) {
5304 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5305 mono_mb_emit_exception_marshal_directive (mb, msg);
5309 mono_mb_emit_ldarg (mb, argnum);
5311 mono_mb_emit_byte (mb, CEE_LDIND_I);
5312 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5313 mono_mb_emit_stloc (mb, conv_arg);
5316 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5320 mono_mb_emit_ldarg (mb, argnum);
5321 mono_mb_emit_ldloc (mb, conv_arg);
5322 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5323 mono_mb_emit_byte (mb, stind_op);
5328 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5329 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5330 /* We need to make a copy so the caller is able to free it */
5331 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5333 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5334 mono_mb_emit_stloc (mb, 3);
5338 g_assert_not_reached ();
5346 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5347 MonoMarshalSpec *spec, int conv_arg,
5348 MonoType **conv_arg_type, MarshalAction action)
5351 if (action == MARSHAL_ACTION_CONV_IN)
5352 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5354 MonoMethodBuilder *mb = m->mb;
5357 case MARSHAL_ACTION_CONV_IN: {
5358 MonoType *intptr_type;
5359 int dar_release_slot, pos;
5361 intptr_type = &mono_defaults.int_class->byval_arg;
5362 conv_arg = mono_mb_add_local (mb, intptr_type);
5363 *conv_arg_type = intptr_type;
5365 if (!sh_dangerous_add_ref)
5366 init_safe_handle ();
5368 mono_mb_emit_ldarg (mb, argnum);
5369 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5370 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5372 mono_mb_patch_branch (mb, pos);
5375 * My tests in show that ref SafeHandles are not really
5376 * passed as ref objects. Instead a NULL is passed as the
5379 mono_mb_emit_icon (mb, 0);
5380 mono_mb_emit_stloc (mb, conv_arg);
5384 /* Create local to hold the ref parameter to DangerousAddRef */
5385 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5387 /* set release = false; */
5388 mono_mb_emit_icon (mb, 0);
5389 mono_mb_emit_stloc (mb, dar_release_slot);
5391 /* safehandle.DangerousAddRef (ref release) */
5392 mono_mb_emit_ldarg (mb, argnum);
5393 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5394 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5396 /* Pull the handle field from SafeHandle */
5397 mono_mb_emit_ldarg (mb, argnum);
5398 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5399 mono_mb_emit_byte (mb, CEE_LDIND_I);
5400 mono_mb_emit_stloc (mb, conv_arg);
5405 case MARSHAL_ACTION_PUSH:
5407 mono_mb_emit_ldloc_addr (mb, conv_arg);
5409 mono_mb_emit_ldloc (mb, conv_arg);
5412 case MARSHAL_ACTION_CONV_OUT: {
5413 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5414 int dar_release_slot = conv_arg + 1;
5417 if (!sh_dangerous_release)
5418 init_safe_handle ();
5424 * My tests indicate that ref SafeHandles parameters are not actually
5425 * passed by ref, but instead a new Handle is created regardless of
5426 * whether a change happens in the unmanaged side.
5428 * Also, the Handle is created before calling into unmanaged code,
5429 * but we do not support that mechanism (getting to the original
5430 * handle) and it makes no difference where we create this
5432 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5434 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5437 /* refval = new SafeHandleDerived ()*/
5438 mono_mb_emit_ldarg (mb, argnum);
5439 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5440 mono_mb_emit_byte (mb, CEE_STIND_REF);
5442 /* refval.handle = returned_handle */
5443 mono_mb_emit_ldarg (mb, argnum);
5444 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5445 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5446 mono_mb_emit_ldloc (mb, conv_arg);
5447 mono_mb_emit_byte (mb, CEE_STIND_I);
5449 mono_mb_emit_ldloc (mb, dar_release_slot);
5450 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5451 mono_mb_emit_ldarg (mb, argnum);
5452 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5453 mono_mb_patch_branch (mb, label_next);
5458 case MARSHAL_ACTION_CONV_RESULT: {
5459 MonoMethod *ctor = NULL;
5460 int intptr_handle_slot;
5462 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5463 mono_mb_emit_byte (mb, CEE_POP);
5464 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5468 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5470 mono_mb_emit_byte (mb, CEE_POP);
5471 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5474 /* Store the IntPtr results into a local */
5475 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5476 mono_mb_emit_stloc (mb, intptr_handle_slot);
5478 /* Create return value */
5479 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5480 mono_mb_emit_stloc (mb, 3);
5482 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5483 mono_mb_emit_ldloc (mb, 3);
5484 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5485 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5486 mono_mb_emit_byte (mb, CEE_STIND_I);
5490 case MARSHAL_ACTION_MANAGED_CONV_IN:
5491 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5494 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5495 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5498 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5499 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5502 printf ("Unhandled case for MarshalAction: %d\n", action);
5510 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5511 MonoMarshalSpec *spec, int conv_arg,
5512 MonoType **conv_arg_type, MarshalAction action)
5515 if (action == MARSHAL_ACTION_CONV_IN)
5516 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5518 MonoMethodBuilder *mb = m->mb;
5521 case MARSHAL_ACTION_CONV_IN: {
5522 MonoType *intptr_type;
5524 intptr_type = &mono_defaults.int_class->byval_arg;
5525 conv_arg = mono_mb_add_local (mb, intptr_type);
5526 *conv_arg_type = intptr_type;
5529 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5530 mono_mb_emit_exception_marshal_directive (mb, msg);
5533 mono_mb_emit_ldarg_addr (mb, argnum);
5534 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5535 mono_mb_emit_byte (mb, CEE_ADD);
5536 mono_mb_emit_byte (mb, CEE_LDIND_I);
5537 mono_mb_emit_stloc (mb, conv_arg);
5541 case MARSHAL_ACTION_PUSH:
5542 mono_mb_emit_ldloc (mb, conv_arg);
5545 case MARSHAL_ACTION_CONV_OUT: {
5546 /* no resource release required */
5550 case MARSHAL_ACTION_CONV_RESULT: {
5551 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5552 mono_mb_emit_exception_marshal_directive (mb, msg);
5556 case MARSHAL_ACTION_MANAGED_CONV_IN:
5557 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5560 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5561 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5564 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5565 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5568 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5576 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5577 MonoMarshalSpec *spec,
5578 int conv_arg, MonoType **conv_arg_type,
5579 MarshalAction action)
5582 if (action == MARSHAL_ACTION_CONV_IN)
5583 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5585 MonoMethodBuilder *mb = m->mb;
5586 MonoClass *klass = mono_class_from_mono_type (t);
5590 case MARSHAL_ACTION_CONV_IN:
5591 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5592 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5594 m->orig_conv_args [argnum] = 0;
5596 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5597 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5598 mono_mb_emit_exception_marshal_directive (mb, msg);
5602 if (klass->delegate) {
5604 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5605 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5606 mono_mb_emit_exception_marshal_directive (mb, msg);
5608 mono_mb_emit_byte (mb, CEE_LDNULL);
5609 mono_mb_emit_stloc (mb, conv_arg);
5611 mono_mb_emit_ldarg (mb, argnum);
5612 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5613 mono_mb_emit_stloc (mb, conv_arg);
5615 } else if (klass == mono_defaults.stringbuilder_class) {
5616 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5617 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5621 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5622 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5623 mono_mb_emit_exception_marshal_directive (mb, msg);
5629 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5632 if (conv == MONO_MARSHAL_CONV_INVALID) {
5633 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5634 mono_mb_emit_exception_marshal_directive (mb, msg);
5638 mono_mb_emit_ldarg (mb, argnum);
5640 mono_mb_emit_byte (mb, CEE_LDIND_I);
5642 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5643 mono_mb_emit_stloc (mb, conv_arg);
5644 } else if (klass->blittable) {
5645 mono_mb_emit_byte (mb, CEE_LDNULL);
5646 mono_mb_emit_stloc (mb, conv_arg);
5648 mono_mb_emit_ldarg (mb, argnum);
5649 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5651 mono_mb_emit_ldarg (mb, argnum);
5652 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5653 mono_mb_emit_stloc (mb, conv_arg);
5655 mono_mb_patch_branch (mb, pos);
5658 mono_mb_emit_byte (mb, CEE_LDNULL);
5659 mono_mb_emit_stloc (mb, conv_arg);
5662 /* we dont need any conversions for out parameters */
5663 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5666 mono_mb_emit_ldarg (mb, argnum);
5667 mono_mb_emit_byte (mb, CEE_LDIND_I);
5670 mono_mb_emit_ldarg (mb, argnum);
5671 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5672 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5675 /* store the address of the source into local variable 0 */
5676 mono_mb_emit_stloc (mb, 0);
5677 mono_mb_emit_ldloc (mb, 0);
5678 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5680 /* allocate space for the native struct and store the address */
5681 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5682 mono_mb_emit_byte (mb, CEE_PREFIX1);
5683 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5684 mono_mb_emit_stloc (mb, conv_arg);
5687 /* Need to store the original buffer so we can free it later */
5688 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5689 mono_mb_emit_ldloc (mb, conv_arg);
5690 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5693 /* set the src_ptr */
5694 mono_mb_emit_ldloc (mb, 0);
5695 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5696 mono_mb_emit_stloc (mb, 0);
5699 mono_mb_emit_ldloc (mb, conv_arg);
5700 mono_mb_emit_stloc (mb, 1);
5702 /* emit valuetype conversion code */
5703 emit_struct_conv (mb, klass, FALSE);
5705 mono_mb_patch_branch (mb, pos);
5709 case MARSHAL_ACTION_CONV_OUT:
5710 if (klass == mono_defaults.stringbuilder_class) {
5712 MonoMarshalNative encoding;
5713 MonoMarshalConv conv;
5715 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5716 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5718 g_assert (encoding != -1);
5721 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5725 mono_mb_emit_ldarg (mb, argnum);
5726 mono_mb_emit_ldloc (mb, conv_arg);
5729 case MONO_NATIVE_LPWSTR:
5730 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5732 case MONO_NATIVE_LPSTR:
5733 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5736 g_assert_not_reached ();
5739 mono_mb_emit_byte (mb, CEE_STIND_REF);
5741 mono_mb_emit_ldarg (mb, argnum);
5742 mono_mb_emit_ldloc (mb, conv_arg);
5744 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5748 mono_mb_emit_ldloc (mb, conv_arg);
5749 mono_mb_emit_icall (mb, mono_marshal_free);
5754 if (klass->delegate) {
5756 mono_mb_emit_ldarg (mb, argnum);
5757 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5758 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5759 mono_mb_emit_ldloc (mb, conv_arg);
5760 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5761 mono_mb_emit_byte (mb, CEE_STIND_REF);
5766 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5767 /* allocate a new object */
5768 mono_mb_emit_ldarg (mb, argnum);
5769 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5770 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5771 mono_mb_emit_byte (mb, CEE_STIND_REF);
5774 /* dst = *argument */
5775 mono_mb_emit_ldarg (mb, argnum);
5778 mono_mb_emit_byte (mb, CEE_LDIND_I);
5780 mono_mb_emit_stloc (mb, 1);
5782 mono_mb_emit_ldloc (mb, 1);
5783 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5785 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5786 mono_mb_emit_ldloc (mb, 1);
5787 mono_mb_emit_icon (mb, sizeof (MonoObject));
5788 mono_mb_emit_byte (mb, CEE_ADD);
5789 mono_mb_emit_stloc (mb, 1);
5791 /* src = tmp_locals [i] */
5792 mono_mb_emit_ldloc (mb, conv_arg);
5793 mono_mb_emit_stloc (mb, 0);
5795 /* emit valuetype conversion code */
5796 emit_struct_conv (mb, klass, TRUE);
5798 /* Free the structure returned by the native code */
5799 emit_struct_free (mb, klass, conv_arg);
5801 if (m->orig_conv_args [argnum]) {
5803 * If the native function changed the pointer, then free
5804 * the original structure plus the new pointer.
5806 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5807 mono_mb_emit_ldloc (mb, conv_arg);
5808 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5810 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5811 g_assert (m->orig_conv_args [argnum]);
5813 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5816 mono_mb_emit_ldloc (mb, conv_arg);
5817 mono_mb_emit_icall (mb, mono_marshal_free);
5819 mono_mb_patch_branch (mb, pos2);
5823 /* Free the original structure passed to native code */
5824 emit_struct_free (mb, klass, conv_arg);
5826 mono_mb_patch_branch (mb, pos);
5829 case MARSHAL_ACTION_PUSH:
5831 mono_mb_emit_ldloc_addr (mb, conv_arg);
5833 mono_mb_emit_ldloc (mb, conv_arg);
5836 case MARSHAL_ACTION_CONV_RESULT:
5837 if (klass->delegate) {
5838 g_assert (!t->byref);
5839 mono_mb_emit_stloc (mb, 0);
5840 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5841 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5842 mono_mb_emit_ldloc (mb, 0);
5843 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5844 mono_mb_emit_stloc (mb, 3);
5847 mono_mb_emit_stloc (mb, 0);
5849 /* Make a copy since emit_conv modifies local 0 */
5850 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5851 mono_mb_emit_ldloc (mb, 0);
5852 mono_mb_emit_stloc (mb, loc);
5854 mono_mb_emit_byte (mb, CEE_LDNULL);
5855 mono_mb_emit_stloc (mb, 3);
5857 mono_mb_emit_ldloc (mb, 0);
5858 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5860 /* allocate result object */
5862 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5863 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5864 mono_mb_emit_stloc (mb, 3);
5868 mono_mb_emit_ldloc (mb, 3);
5869 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5870 mono_mb_emit_stloc (mb, 1);
5872 /* emit conversion code */
5873 emit_struct_conv (mb, klass, TRUE);
5875 emit_struct_free (mb, klass, loc);
5877 /* Free the pointer allocated by unmanaged code */
5878 mono_mb_emit_ldloc (mb, loc);
5879 mono_mb_emit_icall (mb, mono_marshal_free);
5880 mono_mb_patch_branch (mb, pos);
5884 case MARSHAL_ACTION_MANAGED_CONV_IN:
5885 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5887 if (klass->delegate) {
5888 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5889 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5890 mono_mb_emit_ldarg (mb, argnum);
5892 mono_mb_emit_byte (mb, CEE_LDIND_I);
5893 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5894 mono_mb_emit_stloc (mb, conv_arg);
5898 if (klass == mono_defaults.stringbuilder_class) {
5899 MonoMarshalNative encoding;
5901 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5904 g_assert (encoding == MONO_NATIVE_LPSTR);
5906 g_assert (!t->byref);
5907 g_assert (encoding != -1);
5909 mono_mb_emit_ldarg (mb, argnum);
5910 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5911 mono_mb_emit_stloc (mb, conv_arg);
5915 /* The class can not have an automatic layout */
5916 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5917 mono_mb_emit_auto_layout_exception (mb, klass);
5921 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5922 mono_mb_emit_byte (mb, CEE_LDNULL);
5923 mono_mb_emit_stloc (mb, conv_arg);
5928 mono_mb_emit_ldarg (mb, argnum);
5932 /* Check for NULL and raise an exception */
5933 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5935 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5937 mono_mb_patch_branch (mb, pos2);
5938 mono_mb_emit_ldarg (mb, argnum);
5939 mono_mb_emit_byte (mb, CEE_LDIND_I);
5942 mono_mb_emit_stloc (mb, 0);
5944 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5945 mono_mb_emit_stloc (mb, conv_arg);
5947 mono_mb_emit_ldloc (mb, 0);
5948 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5950 /* Create and set dst */
5951 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5952 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5953 mono_mb_emit_stloc (mb, conv_arg);
5954 mono_mb_emit_ldloc (mb, conv_arg);
5955 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5956 mono_mb_emit_stloc (mb, 1);
5958 /* emit valuetype conversion code */
5959 emit_struct_conv (mb, klass, TRUE);
5961 mono_mb_patch_branch (mb, pos);
5964 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5965 if (klass->delegate) {
5968 mono_mb_emit_ldarg (mb, argnum);
5969 mono_mb_emit_ldloc (mb, conv_arg);
5970 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5971 mono_mb_emit_byte (mb, stind_op);
5977 /* Check for null */
5978 mono_mb_emit_ldloc (mb, conv_arg);
5979 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5980 mono_mb_emit_ldarg (mb, argnum);
5981 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5982 mono_mb_emit_byte (mb, CEE_STIND_REF);
5983 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5985 mono_mb_patch_branch (mb, pos);
5988 mono_mb_emit_ldloc (mb, conv_arg);
5989 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5990 mono_mb_emit_stloc (mb, 0);
5992 /* Allocate and set dest */
5993 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5994 mono_mb_emit_byte (mb, CEE_CONV_I);
5995 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5996 mono_mb_emit_stloc (mb, 1);
5998 /* Update argument pointer */
5999 mono_mb_emit_ldarg (mb, argnum);
6000 mono_mb_emit_ldloc (mb, 1);
6001 mono_mb_emit_byte (mb, CEE_STIND_I);
6003 /* emit valuetype conversion code */
6004 emit_struct_conv (mb, klass, FALSE);
6006 mono_mb_patch_branch (mb, pos2);
6007 } else if (klass == mono_defaults.stringbuilder_class) {
6008 // FIXME: What to do here ?
6010 /* byval [Out] marshalling */
6012 /* FIXME: Handle null */
6015 mono_mb_emit_ldloc (mb, conv_arg);
6016 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6017 mono_mb_emit_stloc (mb, 0);
6020 mono_mb_emit_ldarg (mb, argnum);
6021 mono_mb_emit_stloc (mb, 1);
6023 /* emit valuetype conversion code */
6024 emit_struct_conv (mb, klass, FALSE);
6028 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6029 if (klass->delegate) {
6030 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6031 mono_mb_emit_stloc (mb, 3);
6035 /* The class can not have an automatic layout */
6036 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6037 mono_mb_emit_auto_layout_exception (mb, klass);
6041 mono_mb_emit_stloc (mb, 0);
6042 /* Check for null */
6043 mono_mb_emit_ldloc (mb, 0);
6044 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6045 mono_mb_emit_byte (mb, CEE_LDNULL);
6046 mono_mb_emit_stloc (mb, 3);
6047 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6049 mono_mb_patch_branch (mb, pos);
6052 mono_mb_emit_ldloc (mb, 0);
6053 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6054 mono_mb_emit_stloc (mb, 0);
6056 /* Allocate and set dest */
6057 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6058 mono_mb_emit_byte (mb, CEE_CONV_I);
6059 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6060 mono_mb_emit_byte (mb, CEE_DUP);
6061 mono_mb_emit_stloc (mb, 1);
6062 mono_mb_emit_stloc (mb, 3);
6064 emit_struct_conv (mb, klass, FALSE);
6066 mono_mb_patch_branch (mb, pos2);
6070 g_assert_not_reached ();
6081 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6082 MonoMarshalSpec *spec,
6083 int conv_arg, MonoType **conv_arg_type,
6084 MarshalAction action)
6086 MonoMethodBuilder *mb = m->mb;
6087 static MonoMethod *get_object_for_native_variant = NULL;
6088 static MonoMethod *get_native_variant_for_object = NULL;
6090 if (!get_object_for_native_variant)
6091 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6092 g_assert (get_object_for_native_variant);
6094 if (!get_native_variant_for_object)
6095 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6096 g_assert (get_native_variant_for_object);
6099 case MARSHAL_ACTION_CONV_IN: {
6100 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6103 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6105 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6107 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6110 mono_mb_emit_ldarg (mb, argnum);
6112 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6113 mono_mb_emit_ldloc_addr (mb, conv_arg);
6114 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6118 case MARSHAL_ACTION_CONV_OUT: {
6119 static MonoMethod *variant_clear = NULL;
6122 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6123 g_assert (variant_clear);
6126 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6127 mono_mb_emit_ldarg (mb, argnum);
6128 mono_mb_emit_ldloc_addr (mb, conv_arg);
6129 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6130 mono_mb_emit_byte (mb, CEE_STIND_REF);
6133 mono_mb_emit_ldloc_addr (mb, conv_arg);
6134 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6138 case MARSHAL_ACTION_PUSH:
6140 mono_mb_emit_ldloc_addr (mb, conv_arg);
6142 mono_mb_emit_ldloc (mb, conv_arg);
6145 case MARSHAL_ACTION_CONV_RESULT: {
6146 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6147 mono_mb_emit_exception_marshal_directive (mb, msg);
6151 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6152 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6155 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6157 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6159 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6163 mono_mb_emit_ldarg (mb, argnum);
6165 mono_mb_emit_ldarg_addr (mb, argnum);
6166 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6167 mono_mb_emit_stloc (mb, conv_arg);
6171 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6172 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6173 mono_mb_emit_ldloc (mb, conv_arg);
6174 mono_mb_emit_ldarg (mb, argnum);
6175 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6180 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6181 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6182 mono_mb_emit_exception_marshal_directive (mb, msg);
6187 g_assert_not_reached ();
6193 #endif /* DISABLE_COM */
6194 #endif /* DISABLE_JIT */
6197 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6199 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6200 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6202 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6204 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6216 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6217 MonoMarshalSpec *spec,
6218 int conv_arg, MonoType **conv_arg_type,
6219 MarshalAction action)
6223 case MARSHAL_ACTION_CONV_IN:
6224 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6226 case MARSHAL_ACTION_MANAGED_CONV_IN:
6227 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6231 MonoMethodBuilder *mb = m->mb;
6232 MonoClass *klass = mono_class_from_mono_type (t);
6233 gboolean need_convert, need_free;
6234 MonoMarshalNative encoding;
6236 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6239 case MARSHAL_ACTION_CONV_IN:
6240 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6241 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6243 if (klass->element_class->blittable) {
6244 mono_mb_emit_ldarg (mb, argnum);
6246 mono_mb_emit_byte (mb, CEE_LDIND_I);
6247 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6248 mono_mb_emit_stloc (mb, conv_arg);
6251 guint32 label1, label2, label3;
6252 int index_var, src_var, dest_ptr, esize;
6253 MonoMarshalConv conv;
6254 gboolean is_string = FALSE;
6256 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6258 eklass = klass->element_class;
6260 if (eklass == mono_defaults.string_class) {
6262 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6264 else if (eklass == mono_defaults.stringbuilder_class) {
6266 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6269 conv = MONO_MARSHAL_CONV_INVALID;
6271 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6272 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6273 mono_mb_emit_exception_marshal_directive (mb, msg);
6277 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6278 mono_mb_emit_ldarg (mb, argnum);
6280 mono_mb_emit_byte (mb, CEE_LDIND_I);
6281 mono_mb_emit_stloc (mb, src_var);
6284 mono_mb_emit_ldloc (mb, src_var);
6285 mono_mb_emit_stloc (mb, conv_arg);
6286 mono_mb_emit_ldloc (mb, src_var);
6287 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6290 esize = sizeof (gpointer);
6291 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6292 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6294 esize = mono_class_native_size (eklass, NULL);
6296 /* allocate space for the native struct and store the address */
6297 mono_mb_emit_icon (mb, esize);
6298 mono_mb_emit_ldloc (mb, src_var);
6299 mono_mb_emit_byte (mb, CEE_LDLEN);
6301 if (eklass == mono_defaults.string_class) {
6302 /* Make the array bigger for the terminating null */
6303 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6304 mono_mb_emit_byte (mb, CEE_ADD);
6306 mono_mb_emit_byte (mb, CEE_MUL);
6307 mono_mb_emit_byte (mb, CEE_PREFIX1);
6308 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6309 mono_mb_emit_stloc (mb, conv_arg);
6311 mono_mb_emit_ldloc (mb, conv_arg);
6312 mono_mb_emit_stloc (mb, dest_ptr);
6314 /* Emit marshalling loop */
6315 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6316 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6317 mono_mb_emit_stloc (mb, index_var);
6318 label2 = mono_mb_get_label (mb);
6319 mono_mb_emit_ldloc (mb, index_var);
6320 mono_mb_emit_ldloc (mb, src_var);
6321 mono_mb_emit_byte (mb, CEE_LDLEN);
6322 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6324 /* Emit marshalling code */
6328 mono_mb_emit_ldloc (mb, dest_ptr);
6329 mono_mb_emit_ldloc (mb, src_var);
6330 mono_mb_emit_ldloc (mb, index_var);
6331 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6332 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6333 mono_mb_emit_byte (mb, stind_op);
6335 /* set the src_ptr */
6336 mono_mb_emit_ldloc (mb, src_var);
6337 mono_mb_emit_ldloc (mb, index_var);
6338 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6339 mono_mb_emit_stloc (mb, 0);
6342 mono_mb_emit_ldloc (mb, dest_ptr);
6343 mono_mb_emit_stloc (mb, 1);
6345 /* emit valuetype conversion code */
6346 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6349 mono_mb_emit_add_to_local (mb, index_var, 1);
6350 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6352 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6354 mono_mb_patch_branch (mb, label3);
6356 if (eklass == mono_defaults.string_class) {
6357 /* Null terminate */
6358 mono_mb_emit_ldloc (mb, dest_ptr);
6359 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6360 mono_mb_emit_byte (mb, CEE_STIND_REF);
6363 mono_mb_patch_branch (mb, label1);
6368 case MARSHAL_ACTION_CONV_OUT:
6369 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6370 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);
6371 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6374 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6375 int param_num = spec->data.array_data.param_num;
6376 MonoType *param_type;
6378 param_type = m->sig->params [param_num];
6380 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6381 char *msg = g_strdup ("Not implemented.");
6382 mono_mb_emit_exception_marshal_directive (mb, msg);
6387 mono_mb_emit_ldarg (mb, argnum);
6389 /* Create the managed array */
6390 mono_mb_emit_ldarg (mb, param_num);
6391 if (m->sig->params [param_num]->byref)
6392 // FIXME: Support other types
6393 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6394 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6395 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6396 /* Store into argument */
6397 mono_mb_emit_byte (mb, CEE_STIND_REF);
6401 if (need_convert || need_free) {
6402 /* FIXME: Optimize blittable case */
6404 guint32 label1, label2, label3;
6405 int index_var, src_ptr, loc, esize;
6407 eklass = klass->element_class;
6408 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6409 esize = sizeof (gpointer);
6410 else if (eklass == mono_defaults.char_class)
6411 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6413 esize = mono_class_native_size (eklass, NULL);
6414 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6415 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6418 mono_mb_emit_ldarg (mb, argnum);
6420 mono_mb_emit_byte (mb, CEE_LDIND_I);
6421 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6423 mono_mb_emit_ldloc (mb, conv_arg);
6424 mono_mb_emit_stloc (mb, src_ptr);
6426 /* Emit marshalling loop */
6427 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6428 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6429 mono_mb_emit_stloc (mb, index_var);
6430 label2 = mono_mb_get_label (mb);
6431 mono_mb_emit_ldloc (mb, index_var);
6432 mono_mb_emit_ldarg (mb, argnum);
6434 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6435 mono_mb_emit_byte (mb, CEE_LDLEN);
6436 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6438 /* Emit marshalling code */
6440 if (eklass == mono_defaults.stringbuilder_class) {
6441 gboolean need_free2;
6442 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6444 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6447 mono_mb_emit_ldarg (mb, argnum);
6449 mono_mb_emit_byte (mb, CEE_LDIND_I);
6450 mono_mb_emit_ldloc (mb, index_var);
6451 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6454 mono_mb_emit_ldloc (mb, src_ptr);
6455 mono_mb_emit_byte (mb, CEE_LDIND_I);
6457 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6461 mono_mb_emit_ldloc (mb, src_ptr);
6462 mono_mb_emit_byte (mb, CEE_LDIND_I);
6464 mono_mb_emit_icall (mb, mono_marshal_free);
6467 else if (eklass == mono_defaults.string_class) {
6470 mono_mb_emit_ldloc (mb, src_ptr);
6471 mono_mb_emit_byte (mb, CEE_LDIND_I);
6473 mono_mb_emit_icall (mb, mono_marshal_free);
6478 /* set the src_ptr */
6479 mono_mb_emit_ldloc (mb, src_ptr);
6480 mono_mb_emit_stloc (mb, 0);
6483 mono_mb_emit_ldarg (mb, argnum);
6485 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6486 mono_mb_emit_ldloc (mb, index_var);
6487 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6488 mono_mb_emit_stloc (mb, 1);
6490 /* emit valuetype conversion code */
6491 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6495 mono_mb_emit_ldloc (mb, src_ptr);
6496 mono_mb_emit_stloc (mb, loc);
6497 mono_mb_emit_ldloc (mb, loc);
6499 emit_struct_free (mb, eklass, loc);
6503 mono_mb_emit_add_to_local (mb, index_var, 1);
6504 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6506 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6508 mono_mb_patch_branch (mb, label1);
6509 mono_mb_patch_branch (mb, label3);
6512 if (klass->element_class->blittable) {
6513 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6515 mono_mb_emit_ldarg (mb, argnum);
6517 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6518 mono_mb_emit_ldloc (mb, conv_arg);
6519 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6524 case MARSHAL_ACTION_PUSH:
6526 mono_mb_emit_ldloc_addr (mb, conv_arg);
6528 mono_mb_emit_ldloc (mb, conv_arg);
6531 case MARSHAL_ACTION_CONV_RESULT:
6532 /* fixme: we need conversions here */
6533 mono_mb_emit_stloc (mb, 3);
6536 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6538 guint32 label1, label2, label3;
6539 int index_var, src_ptr, esize, param_num, num_elem;
6540 MonoMarshalConv conv;
6541 gboolean is_string = FALSE;
6543 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6544 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6547 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6548 mono_mb_emit_exception_marshal_directive (mb, msg);
6552 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6553 mono_mb_emit_exception_marshal_directive (mb, msg);
6556 if (spec->native != MONO_NATIVE_LPARRAY) {
6557 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6558 mono_mb_emit_exception_marshal_directive (mb, msg);
6562 /* FIXME: t is from the method which is wrapped, not the delegate type */
6563 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6565 param_num = spec->data.array_data.param_num;
6566 num_elem = spec->data.array_data.num_elem;
6567 if (spec->data.array_data.elem_mult == 0)
6568 /* param_num is not specified */
6571 if (param_num == -1) {
6572 if (num_elem <= 0) {
6573 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6574 mono_mb_emit_exception_marshal_directive (mb, msg);
6579 /* FIXME: Optimize blittable case */
6581 eklass = klass->element_class;
6582 if (eklass == mono_defaults.string_class) {
6584 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6586 else if (eklass == mono_defaults.stringbuilder_class) {
6588 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6591 conv = MONO_MARSHAL_CONV_INVALID;
6593 mono_marshal_load_type_info (eklass);
6596 esize = sizeof (gpointer);
6598 esize = mono_class_native_size (eklass, NULL);
6599 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6601 mono_mb_emit_byte (mb, CEE_LDNULL);
6602 mono_mb_emit_stloc (mb, conv_arg);
6604 /* Check param index */
6605 if (param_num != -1) {
6606 if (param_num >= m->sig->param_count) {
6607 char *msg = g_strdup ("Array size control parameter index is out of range.");
6608 mono_mb_emit_exception_marshal_directive (mb, msg);
6611 switch (m->sig->params [param_num]->type) {
6624 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6625 mono_mb_emit_exception_marshal_directive (mb, msg);
6632 mono_mb_emit_ldarg (mb, argnum);
6633 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6635 mono_mb_emit_ldarg (mb, argnum);
6636 mono_mb_emit_stloc (mb, src_ptr);
6638 /* Create managed array */
6640 * The LPArray marshalling spec says that sometimes param_num starts
6641 * from 1, sometimes it starts from 0. But MS seems to allways start
6645 if (param_num == -1) {
6646 mono_mb_emit_icon (mb, num_elem);
6648 mono_mb_emit_ldarg (mb, param_num);
6650 mono_mb_emit_icon (mb, num_elem);
6651 mono_mb_emit_byte (mb, CEE_ADD);
6653 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6656 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6657 mono_mb_emit_stloc (mb, conv_arg);
6659 if (eklass->blittable) {
6660 mono_mb_emit_ldloc (mb, conv_arg);
6661 mono_mb_emit_byte (mb, CEE_CONV_I);
6662 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6663 mono_mb_emit_byte (mb, CEE_ADD);
6664 mono_mb_emit_ldarg (mb, argnum);
6665 mono_mb_emit_ldloc (mb, conv_arg);
6666 mono_mb_emit_byte (mb, CEE_LDLEN);
6667 mono_mb_emit_icon (mb, esize);
6668 mono_mb_emit_byte (mb, CEE_MUL);
6669 mono_mb_emit_byte (mb, CEE_PREFIX1);
6670 mono_mb_emit_byte (mb, CEE_CPBLK);
6674 /* Emit marshalling loop */
6675 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6676 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6677 mono_mb_emit_stloc (mb, index_var);
6678 label2 = mono_mb_get_label (mb);
6679 mono_mb_emit_ldloc (mb, index_var);
6680 mono_mb_emit_ldloc (mb, conv_arg);
6681 mono_mb_emit_byte (mb, CEE_LDLEN);
6682 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6684 /* Emit marshalling code */
6686 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6688 mono_mb_emit_ldloc (mb, conv_arg);
6689 mono_mb_emit_ldloc (mb, index_var);
6691 mono_mb_emit_ldloc (mb, src_ptr);
6692 mono_mb_emit_byte (mb, CEE_LDIND_I);
6694 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6695 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6698 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6699 mono_mb_emit_exception_marshal_directive (mb, msg);
6703 mono_mb_emit_add_to_local (mb, index_var, 1);
6704 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6706 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6708 mono_mb_patch_branch (mb, label1);
6709 mono_mb_patch_branch (mb, label3);
6713 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6715 guint32 label1, label2, label3;
6716 int index_var, dest_ptr, esize, param_num, num_elem;
6717 MonoMarshalConv conv;
6718 gboolean is_string = FALSE;
6721 /* Already handled in CONV_IN */
6724 /* These are already checked in CONV_IN */
6725 g_assert (!t->byref);
6726 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6727 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6729 param_num = spec->data.array_data.param_num;
6730 num_elem = spec->data.array_data.num_elem;
6732 if (spec->data.array_data.elem_mult == 0)
6733 /* param_num is not specified */
6736 if (param_num == -1) {
6737 if (num_elem <= 0) {
6738 g_assert_not_reached ();
6742 /* FIXME: Optimize blittable case */
6744 eklass = klass->element_class;
6745 if (eklass == mono_defaults.string_class) {
6747 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6749 else if (eklass == mono_defaults.stringbuilder_class) {
6751 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6754 conv = MONO_MARSHAL_CONV_INVALID;
6756 mono_marshal_load_type_info (eklass);
6759 esize = sizeof (gpointer);
6761 esize = mono_class_native_size (eklass, NULL);
6763 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6766 mono_mb_emit_ldloc (mb, conv_arg);
6767 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6769 mono_mb_emit_ldarg (mb, argnum);
6770 mono_mb_emit_stloc (mb, dest_ptr);
6772 if (eklass->blittable) {
6774 mono_mb_emit_ldarg (mb, argnum);
6776 mono_mb_emit_ldloc (mb, conv_arg);
6777 mono_mb_emit_byte (mb, CEE_CONV_I);
6778 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6779 mono_mb_emit_byte (mb, CEE_ADD);
6781 mono_mb_emit_ldloc (mb, conv_arg);
6782 mono_mb_emit_byte (mb, CEE_LDLEN);
6783 mono_mb_emit_icon (mb, esize);
6784 mono_mb_emit_byte (mb, CEE_MUL);
6785 mono_mb_emit_byte (mb, CEE_PREFIX1);
6786 mono_mb_emit_byte (mb, CEE_CPBLK);
6790 /* Emit marshalling loop */
6791 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6792 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6793 mono_mb_emit_stloc (mb, index_var);
6794 label2 = mono_mb_get_label (mb);
6795 mono_mb_emit_ldloc (mb, index_var);
6796 mono_mb_emit_ldloc (mb, conv_arg);
6797 mono_mb_emit_byte (mb, CEE_LDLEN);
6798 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6800 /* Emit marshalling code */
6803 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6806 mono_mb_emit_ldloc (mb, dest_ptr);
6809 mono_mb_emit_ldloc (mb, conv_arg);
6810 mono_mb_emit_ldloc (mb, index_var);
6812 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6814 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6815 mono_mb_emit_byte (mb, stind_op);
6818 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6819 mono_mb_emit_exception_marshal_directive (mb, msg);
6823 mono_mb_emit_add_to_local (mb, index_var, 1);
6824 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6826 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6828 mono_mb_patch_branch (mb, label1);
6829 mono_mb_patch_branch (mb, label3);
6833 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6835 guint32 label1, label2, label3;
6836 int index_var, src, dest, esize;
6837 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6838 gboolean is_string = FALSE;
6840 g_assert (!t->byref);
6842 eklass = klass->element_class;
6844 mono_marshal_load_type_info (eklass);
6846 if (eklass == mono_defaults.string_class) {
6848 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6851 g_assert_not_reached ();
6855 esize = sizeof (gpointer);
6856 else if (eklass == mono_defaults.char_class)
6857 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6859 esize = mono_class_native_size (eklass, NULL);
6861 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6862 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6864 mono_mb_emit_stloc (mb, src);
6865 mono_mb_emit_ldloc (mb, src);
6866 mono_mb_emit_stloc (mb, 3);
6868 /* Check for null */
6869 mono_mb_emit_ldloc (mb, src);
6870 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6872 /* Allocate native array */
6873 mono_mb_emit_icon (mb, esize);
6874 mono_mb_emit_ldloc (mb, src);
6875 mono_mb_emit_byte (mb, CEE_LDLEN);
6877 if (eklass == mono_defaults.string_class) {
6878 /* Make the array bigger for the terminating null */
6879 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6880 mono_mb_emit_byte (mb, CEE_ADD);
6882 mono_mb_emit_byte (mb, CEE_MUL);
6883 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6884 mono_mb_emit_stloc (mb, dest);
6885 mono_mb_emit_ldloc (mb, dest);
6886 mono_mb_emit_stloc (mb, 3);
6888 /* Emit marshalling loop */
6889 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6890 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6891 mono_mb_emit_stloc (mb, index_var);
6892 label2 = mono_mb_get_label (mb);
6893 mono_mb_emit_ldloc (mb, index_var);
6894 mono_mb_emit_ldloc (mb, src);
6895 mono_mb_emit_byte (mb, CEE_LDLEN);
6896 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6898 /* Emit marshalling code */
6901 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6904 mono_mb_emit_ldloc (mb, dest);
6907 mono_mb_emit_ldloc (mb, src);
6908 mono_mb_emit_ldloc (mb, index_var);
6910 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6912 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6913 mono_mb_emit_byte (mb, stind_op);
6916 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6917 mono_mb_emit_exception_marshal_directive (mb, msg);
6921 mono_mb_emit_add_to_local (mb, index_var, 1);
6922 mono_mb_emit_add_to_local (mb, dest, esize);
6924 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6926 mono_mb_patch_branch (mb, label3);
6927 mono_mb_patch_branch (mb, label1);
6931 g_assert_not_reached ();
6938 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6941 return &mono_defaults.int32_class->byval_arg;
6943 switch (spec->native) {
6944 case MONO_NATIVE_I1:
6945 case MONO_NATIVE_U1:
6946 return &mono_defaults.byte_class->byval_arg;
6947 case MONO_NATIVE_VARIANTBOOL:
6948 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6949 return &mono_defaults.int16_class->byval_arg;
6950 case MONO_NATIVE_BOOLEAN:
6951 return &mono_defaults.int32_class->byval_arg;
6953 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6954 return &mono_defaults.int32_class->byval_arg;
6960 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6962 MonoClass* conv_arg_class = mono_defaults.int32_class;
6964 switch (spec->native) {
6965 case MONO_NATIVE_I1:
6966 case MONO_NATIVE_U1:
6967 conv_arg_class = mono_defaults.byte_class;
6968 if (ldop) *ldop = CEE_LDIND_I1;
6970 case MONO_NATIVE_VARIANTBOOL:
6971 conv_arg_class = mono_defaults.int16_class;
6972 if (ldop) *ldop = CEE_LDIND_I2;
6974 case MONO_NATIVE_BOOLEAN:
6977 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6980 return conv_arg_class;
6984 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6985 MonoMarshalSpec *spec,
6986 int conv_arg, MonoType **conv_arg_type,
6987 MarshalAction action)
6991 case MARSHAL_ACTION_CONV_IN:
6993 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6995 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6998 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6999 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
7001 *conv_arg_type = &conv_arg_class->this_arg;
7003 *conv_arg_type = &conv_arg_class->byval_arg;
7009 MonoMethodBuilder *mb = m->mb;
7012 case MARSHAL_ACTION_CONV_IN: {
7013 MonoType *local_type;
7015 guint8 ldc_op = CEE_LDC_I4_1;
7017 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7019 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7021 *conv_arg_type = local_type;
7022 conv_arg = mono_mb_add_local (mb, local_type);
7024 mono_mb_emit_ldarg (mb, argnum);
7026 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7027 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7028 mono_mb_emit_byte (mb, ldc_op);
7029 mono_mb_emit_stloc (mb, conv_arg);
7030 mono_mb_patch_branch (mb, label_false);
7035 case MARSHAL_ACTION_CONV_OUT:
7037 int label_false, label_end;
7041 mono_mb_emit_ldarg (mb, argnum);
7042 mono_mb_emit_ldloc (mb, conv_arg);
7044 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7045 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7047 label_end = mono_mb_emit_branch (mb, CEE_BR);
7048 mono_mb_patch_branch (mb, label_false);
7049 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7050 mono_mb_patch_branch (mb, label_end);
7052 mono_mb_emit_byte (mb, CEE_STIND_I1);
7056 case MARSHAL_ACTION_PUSH:
7058 mono_mb_emit_ldloc_addr (mb, conv_arg);
7060 mono_mb_emit_ldloc (mb, conv_arg);
7062 mono_mb_emit_ldarg (mb, argnum);
7065 case MARSHAL_ACTION_CONV_RESULT:
7066 /* maybe we need to make sure that it fits within 8 bits */
7067 mono_mb_emit_stloc (mb, 3);
7070 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7071 MonoClass* conv_arg_class = mono_defaults.int32_class;
7072 guint8 ldop = CEE_LDIND_I4;
7073 int label_null, label_false;
7075 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7076 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7079 *conv_arg_type = &conv_arg_class->this_arg;
7081 *conv_arg_type = &conv_arg_class->byval_arg;
7084 mono_mb_emit_ldarg (mb, argnum);
7088 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7089 mono_mb_emit_ldarg (mb, argnum);
7090 mono_mb_emit_byte (mb, ldop);
7094 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7095 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7096 mono_mb_emit_stloc (mb, conv_arg);
7097 mono_mb_patch_branch (mb, label_false);
7100 mono_mb_patch_branch (mb, label_null);
7104 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7105 guint8 stop = CEE_STIND_I4;
7106 guint8 ldc_op = CEE_LDC_I4_1;
7107 int label_null,label_false, label_end;;
7112 switch (spec->native) {
7113 case MONO_NATIVE_I1:
7114 case MONO_NATIVE_U1:
7115 stop = CEE_STIND_I1;
7117 case MONO_NATIVE_VARIANTBOOL:
7118 stop = CEE_STIND_I2;
7119 ldc_op = CEE_LDC_I4_M1;
7127 mono_mb_emit_ldarg (mb, argnum);
7128 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7130 mono_mb_emit_ldarg (mb, argnum);
7131 mono_mb_emit_ldloc (mb, conv_arg);
7133 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7134 mono_mb_emit_byte (mb, ldc_op);
7135 label_end = mono_mb_emit_branch (mb, CEE_BR);
7137 mono_mb_patch_branch (mb, label_false);
7138 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7139 mono_mb_patch_branch (mb, label_end);
7141 mono_mb_emit_byte (mb, stop);
7142 mono_mb_patch_branch (mb, label_null);
7147 g_assert_not_reached ();
7154 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7155 MonoMarshalSpec *spec, int conv_arg,
7156 MonoType **conv_arg_type, MarshalAction action)
7159 MonoMethodBuilder *mb = m->mb;
7162 case MARSHAL_ACTION_CONV_IN:
7163 /* MS seems to allow this in some cases, ie. bxc #158 */
7165 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7166 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7167 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7172 case MARSHAL_ACTION_PUSH:
7173 mono_mb_emit_ldarg (mb, argnum);
7176 case MARSHAL_ACTION_CONV_RESULT:
7177 /* no conversions necessary */
7178 mono_mb_emit_stloc (mb, 3);
7189 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7190 MonoMarshalSpec *spec, int conv_arg,
7191 MonoType **conv_arg_type, MarshalAction action)
7194 MonoMethodBuilder *mb = m->mb;
7197 case MARSHAL_ACTION_PUSH:
7198 /* fixme: dont know how to marshal that. We cant simply
7199 * convert it to a one byte UTF8 character, because an
7200 * unicode character may need more that one byte in UTF8 */
7201 mono_mb_emit_ldarg (mb, argnum);
7204 case MARSHAL_ACTION_CONV_RESULT:
7205 /* fixme: we need conversions here */
7206 mono_mb_emit_stloc (mb, 3);
7217 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7218 MonoMarshalSpec *spec, int conv_arg,
7219 MonoType **conv_arg_type, MarshalAction action)
7222 MonoMethodBuilder *mb = m->mb;
7225 case MARSHAL_ACTION_PUSH:
7226 mono_mb_emit_ldarg (mb, argnum);
7229 case MARSHAL_ACTION_CONV_RESULT:
7230 /* no conversions necessary */
7231 mono_mb_emit_stloc (mb, 3);
7242 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7243 MonoMarshalSpec *spec, int conv_arg,
7244 MonoType **conv_arg_type, MarshalAction action)
7246 /* Ensure that we have marshalling info for this param */
7247 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7249 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7250 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7252 if (spec && spec->native == MONO_NATIVE_ASANY)
7253 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7256 case MONO_TYPE_VALUETYPE:
7257 if (t->data.klass == mono_defaults.handleref_class)
7258 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7260 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7261 case MONO_TYPE_STRING:
7262 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7263 case MONO_TYPE_CLASS:
7264 case MONO_TYPE_OBJECT:
7265 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7266 if (spec && spec->native == MONO_NATIVE_STRUCT)
7267 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7270 #if !defined(DISABLE_COM)
7271 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7272 spec->native == MONO_NATIVE_IDISPATCH ||
7273 spec->native == MONO_NATIVE_INTERFACE))
7274 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7275 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7276 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7277 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7278 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7281 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7282 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7283 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7285 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7286 case MONO_TYPE_ARRAY:
7287 case MONO_TYPE_SZARRAY:
7288 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7289 case MONO_TYPE_BOOLEAN:
7290 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7292 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7293 case MONO_TYPE_CHAR:
7294 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7307 case MONO_TYPE_FNPTR:
7308 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7309 case MONO_TYPE_GENERICINST:
7310 if (mono_type_generic_inst_is_valuetype (t))
7311 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7313 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7321 * mono_marshal_emit_native_wrapper:
7322 * @image: the image to use for looking up custom marshallers
7323 * @sig: The signature of the native function
7324 * @piinfo: Marshalling information
7325 * @mspecs: Marshalling information
7326 * @aot: whenever the created method will be compiled by the AOT compiler
7327 * @method: if non-NULL, the pinvoke method to call
7328 * @check_exceptions: Whenever to check for pending exceptions after the native call
7329 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7331 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7334 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)
7336 EmitMarshalContext m;
7337 MonoMethodSignature *csig;
7339 int i, argnum, *tmp_locals;
7340 int type, param_shift = 0;
7341 int coop_gc_stack_dummy, coop_gc_var;
7343 memset (&m, 0, sizeof (m));
7348 /* we copy the signature, so that we can set pinvoke to 0 */
7350 /* The function address is passed as the first argument */
7351 g_assert (!sig->hasthis);
7354 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7362 /* we allocate local for use with emit_struct_conv() */
7363 /* allocate local 0 (pointer) src_ptr */
7364 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7365 /* allocate local 1 (pointer) dst_ptr */
7366 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7367 /* allocate local 2 (boolean) delete_old */
7368 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7370 /* delete_old = FALSE */
7371 mono_mb_emit_icon (mb, 0);
7372 mono_mb_emit_stloc (mb, 2);
7374 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7375 /* allocate local 3 to store the return value */
7376 mono_mb_add_local (mb, sig->ret);
7379 if (mono_threads_is_coop_enabled ()) {
7380 /* local 4, dummy local used to get a stack address for suspend funcs */
7381 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7382 /* local 5, the local to be used when calling the suspend funcs */
7383 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7387 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7389 * ret = method (...);
7391 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7398 if (MONO_TYPE_ISSTRUCT (sig->ret))
7399 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7401 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7402 /* Return type custom marshaling */
7404 * Since we can't determine the return type of the unmanaged function,
7405 * we assume it returns a pointer, and pass that pointer to
7406 * MarshalNativeToManaged.
7408 csig->ret = &mono_defaults.int_class->byval_arg;
7411 /* we first do all conversions */
7412 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7413 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7415 for (i = 0; i < sig->param_count; i ++) {
7416 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7419 // In coop mode need to register blocking state during native call
7420 if (mono_threads_is_coop_enabled ()) {
7421 // Perform an extra, early lookup of the function address, so any exceptions
7422 // potentially resulting from the lookup occur before entering blocking mode.
7423 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7424 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7425 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7426 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7429 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7430 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7431 mono_mb_emit_stloc (mb, coop_gc_var);
7434 /* push all arguments */
7437 mono_mb_emit_byte (mb, CEE_LDARG_0);
7439 for (i = 0; i < sig->param_count; i++) {
7440 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7443 /* call the native method */
7445 mono_mb_emit_byte (mb, CEE_LDARG_0);
7446 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7447 mono_mb_emit_byte (mb, CEE_LDIND_I);
7448 mono_mb_emit_calli (mb, csig);
7449 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7451 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7453 g_assert_not_reached ();
7457 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7458 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7459 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7460 mono_mb_emit_calli (mb, csig);
7462 mono_mb_emit_native_call (mb, csig, func);
7466 /* Set LastError if needed */
7467 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7470 static MonoMethodSignature *get_last_error_sig = NULL;
7471 if (!get_last_error_sig) {
7472 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7473 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7474 get_last_error_sig->pinvoke = 1;
7478 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7479 * clobber its value.
7481 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7482 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7484 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7485 mono_mb_emit_byte (mb, CEE_MONO_GET_LAST_ERROR);
7486 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7489 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7493 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7494 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7495 mono_class_init (klass);
7496 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7497 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7498 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7499 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7500 mono_mb_emit_stloc (mb, m.vtaddr_var);
7504 /* Unblock before converting the result, since that can involve calls into the runtime */
7505 if (mono_threads_is_coop_enabled ()) {
7506 mono_mb_emit_ldloc (mb, coop_gc_var);
7507 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7508 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7511 /* convert the result */
7512 if (!sig->ret->byref) {
7513 MonoMarshalSpec *spec = mspecs [0];
7514 type = sig->ret->type;
7516 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7517 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7521 case MONO_TYPE_VOID:
7523 case MONO_TYPE_VALUETYPE:
7524 klass = sig->ret->data.klass;
7525 if (klass->enumtype) {
7526 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7529 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7543 case MONO_TYPE_FNPTR:
7544 case MONO_TYPE_STRING:
7545 case MONO_TYPE_CLASS:
7546 case MONO_TYPE_OBJECT:
7547 case MONO_TYPE_BOOLEAN:
7548 case MONO_TYPE_ARRAY:
7549 case MONO_TYPE_SZARRAY:
7550 case MONO_TYPE_CHAR:
7552 case MONO_TYPE_GENERICINST:
7553 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7555 case MONO_TYPE_TYPEDBYREF:
7557 g_warning ("return type 0x%02x unknown", sig->ret->type);
7558 g_assert_not_reached ();
7562 mono_mb_emit_stloc (mb, 3);
7566 * Need to call this after converting the result since MONO_VTADDR needs
7567 * to be adjacent to the call instruction.
7569 if (check_exceptions)
7570 emit_thread_interrupt_checkpoint (mb);
7572 /* we need to convert byref arguments back and free string arrays */
7573 for (i = 0; i < sig->param_count; i++) {
7574 MonoType *t = sig->params [i];
7575 MonoMarshalSpec *spec = mspecs [i + 1];
7577 argnum = i + param_shift;
7579 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7580 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7585 case MONO_TYPE_STRING:
7586 case MONO_TYPE_VALUETYPE:
7587 case MONO_TYPE_CLASS:
7588 case MONO_TYPE_OBJECT:
7589 case MONO_TYPE_SZARRAY:
7590 case MONO_TYPE_BOOLEAN:
7591 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7598 if (!MONO_TYPE_IS_VOID(sig->ret))
7599 mono_mb_emit_ldloc (mb, 3);
7601 mono_mb_emit_byte (mb, CEE_RET);
7603 #endif /* DISABLE_JIT */
7606 * mono_marshal_get_native_wrapper:
7607 * @method: The MonoMethod to wrap.
7608 * @check_exceptions: Whenever to check for pending exceptions
7610 * generates IL code for the pinvoke wrapper (the generated method
7611 * calls the unmanaged code in piinfo->addr)
7614 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7616 MonoMethodSignature *sig, *csig;
7617 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7618 MonoMethodBuilder *mb;
7619 MonoMarshalSpec **mspecs;
7622 gboolean pinvoke = FALSE;
7625 const char *exc_class = "MissingMethodException";
7626 const char *exc_arg = NULL;
7629 g_assert (method != NULL);
7630 g_assert (mono_method_signature (method)->pinvoke);
7632 GHashTable **cache_ptr;
7635 if (check_exceptions)
7636 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7638 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7640 if (check_exceptions)
7641 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7643 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7646 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7648 if ((res = mono_marshal_find_in_cache (cache, method)))
7651 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7652 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7656 return mono_cominterop_get_native_wrapper (method);
7658 g_assert_not_reached ();
7662 sig = mono_method_signature (method);
7664 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7665 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7668 if (!piinfo->addr) {
7670 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7671 exc_arg = "Method contains unsupported native code";
7673 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7675 piinfo->addr = mono_lookup_internal_call (method);
7679 /* hack - redirect certain string constructors to CreateString */
7680 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7681 g_assert (!pinvoke);
7682 g_assert (method->string_ctor);
7683 g_assert (sig->hasthis);
7685 /* CreateString returns a value */
7686 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7687 csig->ret = &mono_defaults.string_class->byval_arg;
7691 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7692 if (!strcmp ("CreateString", res->name) &&
7693 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7696 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7697 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7699 /* create a wrapper to preserve .ctor in stack trace */
7700 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7703 mono_mb_emit_byte (mb, CEE_LDARG_0);
7704 for (i = 1; i <= csig->param_count; i++)
7705 mono_mb_emit_ldarg (mb, i);
7706 mono_mb_emit_managed_call (mb, res, NULL);
7707 mono_mb_emit_byte (mb, CEE_RET);
7710 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7711 info->d.string_ctor.method = method;
7713 /* use native_wrapper_cache because internal calls are looked up there */
7714 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7715 csig->param_count + 1, info, NULL);
7722 /* exception will be thrown */
7723 piinfo->addr = NULL;
7724 g_warning ("cannot find CreateString for .ctor");
7727 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7729 mb->method->save_lmf = 1;
7732 * In AOT mode and embedding scenarios, it is possible that the icall is not
7733 * registered in the runtime doing the AOT compilation.
7735 if (!piinfo->addr && !aot) {
7737 mono_mb_emit_exception (mb, exc_class, exc_arg);
7739 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7740 info->d.managed_to_native.method = method;
7742 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7744 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7745 csig->param_count + 16, info, NULL);
7751 /* internal calls: we simply push all arguments and call the method (no conversions) */
7752 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7754 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7756 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7758 //printf ("%s\n", mono_method_full_name (method, 1));
7760 /* hack - string constructors returns a value */
7761 if (method->string_ctor)
7762 csig->ret = &mono_defaults.string_class->byval_arg;
7766 MonoClass *handle_stack_mark_class;
7767 MonoClass *error_class;
7768 int thread_info_var = -1, stack_mark_var = -1, error_var = -1;
7769 MonoMethodSignature *call_sig = csig;
7770 gboolean uses_handles;
7771 (void) mono_lookup_internal_call_full (method, &uses_handles);
7774 /* If it uses handles and MonoError, it had better check exceptions */
7775 g_assert (!uses_handles || check_exceptions);
7778 MonoMethodSignature *ret;
7780 /* Add a MonoError argument */
7781 // FIXME: The stuff from mono_metadata_signature_dup_internal_with_padding ()
7782 ret = mono_metadata_signature_alloc (method->klass->image, csig->param_count + 1);
7784 ret->param_count = csig->param_count + 1;
7785 ret->ret = csig->ret;
7786 for (int i = 0; i < csig->param_count; ++i) {
7787 // FIXME: TODO implement handle wrapping for out and inout params.
7788 g_assert (!mono_signature_param_is_out (csig, i));
7789 ret->params [i] = csig->params [i];
7791 ret->params [csig->param_count] = &mono_get_intptr_class ()->byval_arg;
7796 handle_stack_mark_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/HandleStackMark");
7797 error_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/MonoError");
7799 thread_info_var = mono_mb_add_local (mb, &mono_get_intptr_class ()->byval_arg);
7800 stack_mark_var = mono_mb_add_local (mb, &handle_stack_mark_class->byval_arg);
7801 error_var = mono_mb_add_local (mb, &error_class->byval_arg);
7803 // FIXME: Change csig so it passes a handle not an objref
7810 * Add a null check since public icalls can be called with 'call' which
7811 * does no such check.
7813 mono_mb_emit_byte (mb, CEE_LDARG_0);
7814 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7815 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7816 mono_mb_patch_branch (mb, pos);
7820 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
7821 mono_mb_emit_ldloc_addr (mb, error_var);
7822 mono_mb_emit_icall (mb, mono_icall_start);
7823 mono_mb_emit_stloc (mb, thread_info_var);
7826 mono_mb_emit_byte (mb, CEE_LDARG_0);
7827 mono_mb_emit_icall (mb, mono_handle_new);
7829 for (i = 0; i < sig->param_count; i++) {
7830 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7831 if (MONO_TYPE_IS_REFERENCE (sig->params [i])) {
7832 mono_mb_emit_icall (mb, mono_handle_new);
7835 mono_mb_emit_ldloc_addr (mb, error_var);
7838 mono_mb_emit_byte (mb, CEE_LDARG_0);
7839 for (i = 0; i < sig->param_count; i++)
7840 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7844 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7845 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7846 mono_mb_emit_calli (mb, call_sig);
7848 g_assert (piinfo->addr);
7849 mono_mb_emit_native_call (mb, call_sig, piinfo->addr);
7853 if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
7854 // if (ret != NULL_HANDLE) {
7855 // ret = MONO_HANDLE_RAW(ret)
7857 mono_mb_emit_byte (mb, CEE_DUP);
7858 int pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7859 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
7860 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7861 mono_mb_patch_branch (mb, pos);
7863 mono_mb_emit_ldloc (mb, thread_info_var);
7864 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
7865 mono_mb_emit_ldloc_addr (mb, error_var);
7866 mono_mb_emit_icall (mb, mono_icall_end);
7869 if (check_exceptions)
7870 emit_thread_interrupt_checkpoint (mb);
7871 mono_mb_emit_byte (mb, CEE_RET);
7873 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7874 info->d.managed_to_native.method = method;
7876 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7878 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7887 g_assert (piinfo->addr);
7890 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7891 mono_method_get_marshal_info (method, mspecs);
7893 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7895 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7896 info->d.managed_to_native.method = method;
7898 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7900 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7905 for (i = sig->param_count; i >= 0; i--)
7907 mono_metadata_free_marshal_spec (mspecs [i]);
7911 /* mono_method_print_code (res); */
7917 * mono_marshal_get_native_func_wrapper:
7918 * @image: The image to use for memory allocation and for looking up custom marshallers.
7919 * @sig: The signature of the function
7920 * @func: The native function to wrap
7922 * Returns a wrapper method around native functions, similar to the pinvoke
7926 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7927 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7929 MonoMethodSignature *csig;
7931 SignaturePointerPair key, *new_key;
7932 MonoMethodBuilder *mb;
7941 // Generic types are not safe to place in MonoImage caches.
7942 g_assert (!sig->is_inflated);
7944 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7945 if ((res = mono_marshal_find_in_cache (cache, &key)))
7948 name = g_strdup_printf ("wrapper_native_%p", func);
7949 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7950 mb->method->save_lmf = 1;
7953 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7956 csig = mono_metadata_signature_dup_full (image, sig);
7959 new_key = g_new (SignaturePointerPair,1);
7960 new_key->sig = csig;
7961 new_key->pointer = func;
7963 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7969 mono_marshal_set_wrapper_info (res, NULL);
7975 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7979 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7981 MonoMethodSignature *sig, *csig;
7982 MonoMethodBuilder *mb;
7987 MonoMethodPInvoke mpiinfo;
7988 MonoMethodPInvoke *piinfo = &mpiinfo;
7989 MonoMarshalSpec **mspecs;
7990 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7991 MonoImage *image = invoke->klass->image;
7994 // FIXME: include UnmanagedFunctionPointerAttribute info
7997 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7999 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8001 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8004 memset (&mpiinfo, 0, sizeof (mpiinfo));
8005 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8007 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8008 mono_method_get_marshal_info (invoke, mspecs);
8009 /* Freed below so don't alloc from mempool */
8010 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8013 name = g_strdup_printf ("wrapper_aot_native");
8014 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8015 mb->method->save_lmf = 1;
8018 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8021 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8022 info->d.managed_to_native.method = invoke;
8024 g_assert (!sig->hasthis);
8025 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
8027 res = mono_mb_create_and_cache_full (cache, invoke,
8028 mb, csig, csig->param_count + 16,
8032 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8034 mono_metadata_free_marshal_spec (mspecs [i]);
8042 * mono_marshal_emit_managed_wrapper:
8044 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8045 * the delegate which wraps the managed method to be called. For closed delegates,
8046 * it could have fewer parameters than the method it wraps.
8047 * THIS_LOC is the memory location where the target of the delegate is stored.
8050 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8053 MonoMethodSignature *sig, *csig;
8059 /* we first do all conversions */
8060 for (i = 0; i < sig->param_count; i ++) {
8061 MonoType *t = sig->params [i];
8064 case MONO_TYPE_OBJECT:
8065 case MONO_TYPE_CLASS:
8066 case MONO_TYPE_VALUETYPE:
8067 case MONO_TYPE_ARRAY:
8068 case MONO_TYPE_SZARRAY:
8069 case MONO_TYPE_STRING:
8070 case MONO_TYPE_BOOLEAN:
8071 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8075 if (!sig->ret->byref) {
8076 switch (sig->ret->type) {
8077 case MONO_TYPE_STRING:
8078 csig->ret = &mono_defaults.int_class->byval_arg;
8085 MonoMethodSignature *sig, *csig;
8086 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
8087 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
8088 int leave_try_pos, leave_catch_pos, ex_m1_pos;
8089 gboolean closed = FALSE;
8094 /* allocate local 0 (pointer) src_ptr */
8095 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8096 /* allocate local 1 (pointer) dst_ptr */
8097 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8098 /* allocate local 2 (boolean) delete_old */
8099 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8101 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8102 /* Closed delegate */
8103 g_assert (sig->param_count == invoke_sig->param_count + 1);
8105 /* Use a new signature without the first argument */
8106 sig = mono_metadata_signature_dup (sig);
8107 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8108 sig->param_count --;
8111 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8112 /* allocate local 3 to store the return value */
8113 mono_mb_add_local (mb, sig->ret);
8116 if (MONO_TYPE_ISSTRUCT (sig->ret))
8117 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8119 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8120 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8122 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8123 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8128 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8129 * mono_threads_attach_coop ();
8133 * ret = method (...);
8134 * } catch (Exception e) {
8135 * ex = mono_gchandle_new (e, false);
8137 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8138 * mono_threads_detach_coop ();
8141 * mono_marshal_ftnptr_eh_callback (ex);
8147 clauses = g_new0 (MonoExceptionClause, 2);
8149 clause_catch = &clauses [0];
8150 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8151 clause_catch->data.catch_class = mono_defaults.exception_class;
8153 clause_finally = &clauses [1];
8154 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8156 mono_mb_emit_icon (mb, 0);
8157 mono_mb_emit_stloc (mb, 2);
8159 mono_mb_emit_icon (mb, -1);
8160 mono_mb_emit_byte (mb, CEE_CONV_U4);
8161 mono_mb_emit_stloc (mb, ex_local);
8164 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8166 if (!mono_threads_is_coop_enabled ()) {
8167 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8168 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8170 /* mono_threads_attach_coop (); */
8171 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8172 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8173 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8174 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8175 mono_mb_emit_stloc (mb, attach_cookie_local);
8178 /* <interrupt check> */
8179 emit_thread_interrupt_checkpoint (mb);
8181 /* we first do all conversions */
8182 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8183 for (i = 0; i < sig->param_count; i ++) {
8184 MonoType *t = sig->params [i];
8187 case MONO_TYPE_OBJECT:
8188 case MONO_TYPE_CLASS:
8189 case MONO_TYPE_VALUETYPE:
8190 case MONO_TYPE_ARRAY:
8191 case MONO_TYPE_SZARRAY:
8192 case MONO_TYPE_STRING:
8193 case MONO_TYPE_BOOLEAN:
8194 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8204 if (target_handle) {
8205 mono_mb_emit_icon (mb, (gint32)target_handle);
8206 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8209 g_assert_not_reached ();
8211 } else if (closed) {
8212 mono_mb_emit_icon (mb, (gint32)target_handle);
8213 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8216 for (i = 0; i < sig->param_count; i++) {
8217 MonoType *t = sig->params [i];
8219 if (tmp_locals [i]) {
8221 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8223 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8226 mono_mb_emit_ldarg (mb, i);
8229 /* ret = method (...) */
8230 mono_mb_emit_managed_call (mb, method, NULL);
8232 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8233 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8234 mono_class_init (klass);
8235 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8236 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8237 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8238 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8239 mono_mb_emit_stloc (mb, m->vtaddr_var);
8243 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8244 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8245 } else if (!sig->ret->byref) {
8246 switch (sig->ret->type) {
8247 case MONO_TYPE_VOID:
8249 case MONO_TYPE_BOOLEAN:
8252 case MONO_TYPE_CHAR:
8264 case MONO_TYPE_OBJECT:
8265 mono_mb_emit_stloc (mb, 3);
8267 case MONO_TYPE_STRING:
8268 csig->ret = &mono_defaults.int_class->byval_arg;
8269 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8271 case MONO_TYPE_VALUETYPE:
8272 case MONO_TYPE_CLASS:
8273 case MONO_TYPE_SZARRAY:
8274 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8277 g_warning ("return type 0x%02x unknown", sig->ret->type);
8278 g_assert_not_reached ();
8281 mono_mb_emit_stloc (mb, 3);
8284 /* Convert byref arguments back */
8285 for (i = 0; i < sig->param_count; i ++) {
8286 MonoType *t = sig->params [i];
8287 MonoMarshalSpec *spec = mspecs [i + 1];
8289 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8290 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8292 else if (t->byref) {
8294 case MONO_TYPE_CLASS:
8295 case MONO_TYPE_VALUETYPE:
8296 case MONO_TYPE_OBJECT:
8297 case MONO_TYPE_STRING:
8298 case MONO_TYPE_BOOLEAN:
8299 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8305 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8306 /* The [Out] information is encoded in the delegate signature */
8308 case MONO_TYPE_SZARRAY:
8309 case MONO_TYPE_CLASS:
8310 case MONO_TYPE_VALUETYPE:
8311 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8314 g_assert_not_reached ();
8319 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8323 /* catch (Exception e) { */
8324 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8325 clause_catch->handler_offset = mono_mb_get_label (mb);
8327 mono_mb_emit_stloc (mb, e_local);
8329 /* ex = mono_gchandle_new (e, false); */
8330 mono_mb_emit_ldloc (mb, e_local);
8331 mono_mb_emit_icon (mb, 0);
8332 mono_mb_emit_icall (mb, mono_gchandle_new);
8333 mono_mb_emit_stloc (mb, ex_local);
8335 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8338 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8341 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8342 clause_finally->handler_offset = mono_mb_get_label (mb);
8344 if (!mono_threads_is_coop_enabled ()) {
8345 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8346 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8348 /* mono_threads_detach_coop (); */
8349 mono_mb_emit_ldloc (mb, attach_cookie_local);
8350 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8351 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8355 mono_mb_emit_ldloc (mb, ex_local);
8356 mono_mb_emit_icon (mb, -1);
8357 mono_mb_emit_byte (mb, CEE_CONV_U4);
8358 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8360 /* mono_marshal_ftnptr_eh_callback (ex) */
8361 mono_mb_emit_ldloc (mb, ex_local);
8362 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8365 mono_mb_patch_branch (mb, ex_m1_pos);
8367 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8369 /* } [endfinally] */
8370 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8372 mono_mb_patch_branch (mb, leave_try_pos);
8373 mono_mb_patch_branch (mb, leave_catch_pos);
8376 if (m->retobj_var) {
8377 mono_mb_emit_ldloc (mb, m->retobj_var);
8378 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8379 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8382 if (!MONO_TYPE_IS_VOID(sig->ret))
8383 mono_mb_emit_ldloc (mb, 3);
8384 mono_mb_emit_byte (mb, CEE_RET);
8387 mono_mb_set_clauses (mb, 2, clauses);
8395 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8397 MonoMethodSignature *sig;
8402 * Under windows, delegates passed to native code must use the STDCALL
8403 * calling convention.
8405 csig->call_convention = MONO_CALL_STDCALL;
8408 sig = mono_method_signature (method);
8410 /* Change default calling convention if needed */
8411 /* Why is this a modopt ? */
8412 if (sig->ret && sig->ret->num_mods) {
8413 for (i = 0; i < sig->ret->num_mods; ++i) {
8415 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8416 g_assert (mono_error_ok (&error));
8417 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8418 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8419 csig->call_convention = MONO_CALL_C;
8420 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8421 csig->call_convention = MONO_CALL_STDCALL;
8422 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8423 csig->call_convention = MONO_CALL_FASTCALL;
8424 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8425 csig->call_convention = MONO_CALL_THISCALL;
8432 * generates IL code to call managed methods from unmanaged code
8433 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8436 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8439 MonoMethodSignature *sig, *csig, *invoke_sig;
8440 MonoMethodBuilder *mb;
8441 MonoMethod *res, *invoke;
8442 MonoMarshalSpec **mspecs;
8443 MonoMethodPInvoke piinfo;
8446 EmitMarshalContext m;
8448 g_assert (method != NULL);
8449 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8452 * FIXME: Should cache the method+delegate type pair, since the same method
8453 * could be called with different delegates, thus different marshalling
8456 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8458 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8461 invoke = mono_get_delegate_invoke (delegate_klass);
8462 invoke_sig = mono_method_signature (invoke);
8464 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8465 mono_method_get_marshal_info (invoke, mspecs);
8467 sig = mono_method_signature (method);
8469 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8471 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8472 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8474 /* we copy the signature, so that we can modify it */
8476 /* Need to free this later */
8477 csig = mono_metadata_signature_dup (invoke_sig);
8479 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8483 memset (&m, 0, sizeof (m));
8489 m.image = method->klass->image;
8491 mono_marshal_set_callconv_from_modopt (invoke, csig);
8493 /* The attribute is only available in Net 2.0 */
8494 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8495 MonoCustomAttrInfo *cinfo;
8496 MonoCustomAttrEntry *attr;
8499 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8500 * contents of the attribute without constructing it, as that might not be
8501 * possible when running in cross-compiling mode.
8503 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8504 mono_error_assert_ok (&error);
8507 for (i = 0; i < cinfo->num_attrs; ++i) {
8508 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8509 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8510 attr = &cinfo->attrs [i];
8516 MonoArray *typed_args, *named_args;
8517 CattrNamedArg *arginfo;
8521 MonoBoolean set_last_error = 0;
8524 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8525 g_assert (mono_error_ok (&error));
8526 g_assert (mono_array_length (typed_args) == 1);
8529 o = mono_array_get (typed_args, MonoObject*, 0);
8530 call_conv = *(gint32*)mono_object_unbox (o);
8533 for (i = 0; i < mono_array_length (named_args); ++i) {
8534 CattrNamedArg *narg = &arginfo [i];
8536 o = mono_array_get (named_args, MonoObject*, i);
8538 g_assert (narg->field);
8539 if (!strcmp (narg->field->name, "CharSet")) {
8540 charset = *(gint32*)mono_object_unbox (o);
8541 } else if (!strcmp (narg->field->name, "SetLastError")) {
8542 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8543 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8544 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8545 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8546 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8548 g_assert_not_reached ();
8554 memset (&piinfo, 0, sizeof (piinfo));
8556 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8558 csig->call_convention = call_conv - 1;
8561 if (cinfo && !cinfo->cached)
8562 mono_custom_attrs_free (cinfo);
8565 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8567 if (!target_handle) {
8570 // FIXME: Associate it with the method+delegate_klass pair
8571 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8572 info->d.native_to_managed.method = method;
8573 info->d.native_to_managed.klass = delegate_klass;
8575 res = mono_mb_create_and_cache_full (cache, method,
8576 mb, csig, sig->param_count + 16,
8582 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8586 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8588 mono_metadata_free_marshal_spec (mspecs [i]);
8591 /* mono_method_print_code (res); */
8597 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8601 MonoMethodSignature *sig;
8602 MonoMethodBuilder *mb;
8607 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8609 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8612 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8613 MonoMethodSignature *csig;
8614 MonoMarshalSpec **mspecs;
8615 EmitMarshalContext m;
8617 sig = mono_method_signature (method);
8618 g_assert (!sig->hasthis);
8620 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8621 mono_method_get_marshal_info (method, mspecs);
8623 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8624 csig = mono_metadata_signature_dup_full (image, sig);
8628 memset (&m, 0, sizeof (m));
8636 mono_marshal_set_callconv_from_modopt (method, csig);
8638 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8640 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8645 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8648 for (i = sig->param_count; i >= 0; i--)
8650 mono_metadata_free_marshal_spec (mspecs [i]);
8653 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8654 mono_error_assert_ok (&error);
8655 return compiled_ptr;
8658 sig = mono_method_signature (method);
8659 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8661 param_count = sig->param_count + sig->hasthis;
8663 for (i = 0; i < param_count; i++)
8664 mono_mb_emit_ldarg (mb, i);
8666 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8667 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8669 mono_mb_emit_op (mb, CEE_CALL, method);
8670 mono_mb_emit_byte (mb, CEE_RET);
8675 method = mono_mb_create (mb, sig, param_count, NULL);
8678 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8679 mono_error_assert_ok (&error);
8680 return compiled_ptr;
8686 * The code directly following this is the cache hit, value positive branch
8688 * This function takes a new method builder with 0 locals and adds two locals
8689 * to create multiple out-branches and the fall through state of having the object
8690 * on the stack after a cache miss
8693 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8694 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8695 MonoMethodBuilder *mb)
8699 /* allocate local 0 (pointer) obj_vtable */
8700 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8701 /* allocate local 1 (pointer) cached_vtable */
8702 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8705 mono_mb_emit_ldarg (mb, obj_arg_position);
8706 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8708 /*obj_vtable = obj->vtable;*/
8709 mono_mb_emit_ldarg (mb, obj_arg_position);
8710 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8711 mono_mb_emit_byte (mb, CEE_LDIND_I);
8712 mono_mb_emit_stloc (mb, 0);
8714 /* cached_vtable = *cache*/
8715 mono_mb_emit_ldarg (mb, cache_arg_position);
8716 mono_mb_emit_byte (mb, CEE_LDIND_I);
8717 mono_mb_emit_stloc (mb, 1);
8719 mono_mb_emit_ldloc (mb, 1);
8720 mono_mb_emit_byte (mb, CEE_LDC_I4);
8721 mono_mb_emit_i4 (mb, ~0x1);
8722 mono_mb_emit_byte (mb, CEE_CONV_I);
8723 mono_mb_emit_byte (mb, CEE_AND);
8724 mono_mb_emit_ldloc (mb, 0);
8725 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8726 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8728 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8729 mono_mb_emit_ldloc (mb, 1);
8730 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8731 mono_mb_emit_byte (mb, CEE_CONV_U);
8732 mono_mb_emit_byte (mb, CEE_AND);
8733 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8734 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8737 mono_mb_patch_branch (mb, cache_miss_pos);
8740 mono_mb_emit_ldarg (mb, obj_arg_position);
8741 mono_mb_emit_ldarg (mb, class_arg_position);
8742 mono_mb_emit_ldarg (mb, cache_arg_position);
8743 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8746 #endif /* DISABLE_JIT */
8749 * This does the equivalent of mono_object_castclass_with_cache.
8752 mono_marshal_get_castclass_with_cache (void)
8754 static MonoMethod *cached;
8756 MonoMethodBuilder *mb;
8757 MonoMethodSignature *sig;
8758 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8761 const int obj_arg_position = 0;
8762 const int class_arg_position = 1;
8763 const int cache_arg_position = 2;
8768 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8769 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8770 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8771 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8772 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8773 sig->ret = &mono_defaults.object_class->byval_arg;
8777 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8778 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8779 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8782 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8783 mono_mb_emit_ldarg (mb, obj_arg_position);
8784 mono_mb_emit_byte (mb, CEE_RET);
8787 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8788 mono_mb_patch_branch (mb, invalid_cast_pos);
8789 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8792 mono_mb_patch_branch (mb, return_null_pos);
8793 mono_mb_emit_byte (mb, CEE_LDNULL);
8794 mono_mb_emit_byte (mb, CEE_RET);
8795 #endif /* DISABLE_JIT */
8797 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8798 res = mono_mb_create (mb, sig, 8, info);
8801 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8802 mono_free_method (res);
8803 mono_metadata_free_method_signature (sig);
8810 /* this is an icall */
8812 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8815 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8816 if (mono_error_set_pending_exception (&error))
8819 #ifndef DISABLE_REMOTING
8820 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8824 uintptr_t cache_update = (uintptr_t)obj->vtable;
8826 cache_update = cache_update | 0x1;
8828 *cache = cache_update;
8834 * This does the equivalent of mono_object_isinst_with_cache.
8837 mono_marshal_get_isinst_with_cache (void)
8839 static MonoMethod *cached;
8841 MonoMethodBuilder *mb;
8842 MonoMethodSignature *sig;
8843 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8846 const int obj_arg_position = 0;
8847 const int class_arg_position = 1;
8848 const int cache_arg_position = 2;
8853 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8854 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8856 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8858 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8860 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8861 sig->ret = &mono_defaults.object_class->byval_arg;
8865 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8866 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8867 // Return the object gotten via the slow path.
8868 mono_mb_emit_byte (mb, CEE_RET);
8871 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8872 mono_mb_patch_branch (mb, return_null_pos);
8873 mono_mb_emit_byte (mb, CEE_LDNULL);
8874 mono_mb_emit_byte (mb, CEE_RET);
8877 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8878 mono_mb_emit_ldarg (mb, obj_arg_position);
8879 mono_mb_emit_byte (mb, CEE_RET);
8882 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8883 res = mono_mb_create (mb, sig, 8, info);
8886 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8887 mono_free_method (res);
8888 mono_metadata_free_method_signature (sig);
8896 * mono_marshal_get_isinst:
8897 * @klass: the type of the field
8899 * This method generates a function which can be used to check if an object is
8900 * an instance of the given type, icluding the case where the object is a proxy.
8901 * The generated function has the following signature:
8902 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8905 mono_marshal_get_isinst (MonoClass *klass)
8907 static MonoMethodSignature *isint_sig = NULL;
8911 int pos_was_ok, pos_end;
8912 #ifndef DISABLE_REMOTING
8913 int pos_end2, pos_failed;
8916 MonoMethodBuilder *mb;
8918 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8919 if ((res = mono_marshal_find_in_cache (cache, klass)))
8923 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8924 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8925 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8926 isint_sig->pinvoke = 0;
8929 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8930 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8933 mb->method->save_lmf = 1;
8936 /* check if the object is a proxy that needs special cast */
8937 mono_mb_emit_ldarg (mb, 0);
8938 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8939 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8941 /* The result of MONO_CISINST can be:
8942 0) the type check succeeded
8943 1) the type check did not succeed
8944 2) a CanCastTo call is needed */
8945 #ifndef DISABLE_REMOTING
8946 mono_mb_emit_byte (mb, CEE_DUP);
8947 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8949 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8950 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8952 /* get the real proxy from the transparent proxy*/
8954 mono_mb_emit_ldarg (mb, 0);
8955 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8956 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8960 mono_mb_patch_branch (mb, pos_failed);
8961 mono_mb_emit_byte (mb, CEE_LDNULL);
8962 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8966 mono_mb_patch_branch (mb, pos_was_ok);
8967 mono_mb_emit_byte (mb, CEE_POP);
8968 mono_mb_emit_ldarg (mb, 0);
8972 mono_mb_patch_branch (mb, pos_end);
8973 mono_mb_patch_branch (mb, pos_end2);
8974 mono_mb_emit_byte (mb, CEE_RET);
8976 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8980 mono_mb_emit_byte (mb, CEE_LDNULL);
8981 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8985 mono_mb_patch_branch (mb, pos_was_ok);
8986 mono_mb_emit_ldarg (mb, 0);
8990 mono_mb_patch_branch (mb, pos_end);
8991 mono_mb_emit_byte (mb, CEE_RET);
8992 #endif /* DISABLE_REMOTING */
8993 #endif /* DISABLE_JIT */
8995 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8996 info->d.proxy.klass = klass;
8997 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
9004 * mono_marshal_get_castclass:
9005 * @klass: the type of the field
9007 * This method generates a function which can be used to cast an object to
9008 * an instance of the given type, icluding the case where the object is a proxy.
9009 * The generated function has the following signature:
9010 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9013 mono_marshal_get_castclass (MonoClass *klass)
9015 static MonoMethodSignature *castclass_sig = NULL;
9018 #ifndef DISABLE_REMOTING
9019 int pos_was_ok, pos_was_ok2;
9022 MonoMethodBuilder *mb;
9025 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9026 if ((res = mono_marshal_find_in_cache (cache, klass)))
9029 if (!castclass_sig) {
9030 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9031 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9032 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9033 castclass_sig->pinvoke = 0;
9036 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9037 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9040 mb->method->save_lmf = 1;
9043 /* check if the object is a proxy that needs special cast */
9044 mono_mb_emit_ldarg (mb, 0);
9045 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9046 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9048 /* The result of MONO_CCASTCLASS can be:
9049 0) the cast is valid
9050 1) cast of unknown proxy type
9051 or an exception if the cast is is invalid
9053 #ifndef DISABLE_REMOTING
9054 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9056 /* get the real proxy from the transparent proxy*/
9058 mono_mb_emit_ldarg (mb, 0);
9059 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9060 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9063 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9066 mono_mb_patch_branch (mb, pos_was_ok);
9067 mono_mb_patch_branch (mb, pos_was_ok2);
9069 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
9070 mono_mb_emit_byte (mb, CEE_POP);
9071 #endif /* DISABLE_REMOTING */
9073 mono_mb_emit_ldarg (mb, 0);
9076 mono_mb_emit_byte (mb, CEE_RET);
9077 #endif /* DISABLE_JIT */
9079 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9081 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
9089 * mono_marshal_get_struct_to_ptr:
9092 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9095 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9097 MonoMethodBuilder *mb;
9098 static MonoMethod *stoptr = NULL;
9102 g_assert (klass != NULL);
9104 mono_marshal_load_type_info (klass);
9106 if (klass->marshal_info->str_to_ptr)
9107 return klass->marshal_info->str_to_ptr;
9110 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9113 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9116 if (klass->blittable) {
9117 mono_mb_emit_byte (mb, CEE_LDARG_1);
9118 mono_mb_emit_byte (mb, CEE_LDARG_0);
9119 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9120 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9121 mono_mb_emit_byte (mb, CEE_PREFIX1);
9122 mono_mb_emit_byte (mb, CEE_CPBLK);
9125 /* allocate local 0 (pointer) src_ptr */
9126 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9127 /* allocate local 1 (pointer) dst_ptr */
9128 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9129 /* allocate local 2 (boolean) delete_old */
9130 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9131 mono_mb_emit_byte (mb, CEE_LDARG_2);
9132 mono_mb_emit_stloc (mb, 2);
9134 /* initialize src_ptr to point to the start of object data */
9135 mono_mb_emit_byte (mb, CEE_LDARG_0);
9136 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9137 mono_mb_emit_stloc (mb, 0);
9139 /* initialize dst_ptr */
9140 mono_mb_emit_byte (mb, CEE_LDARG_1);
9141 mono_mb_emit_stloc (mb, 1);
9143 emit_struct_conv (mb, klass, FALSE);
9146 mono_mb_emit_byte (mb, CEE_RET);
9148 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9149 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9152 mono_marshal_lock ();
9153 if (!klass->marshal_info->str_to_ptr)
9154 klass->marshal_info->str_to_ptr = res;
9156 res = klass->marshal_info->str_to_ptr;
9157 mono_marshal_unlock ();
9162 * mono_marshal_get_ptr_to_struct:
9165 * generates IL code for PtrToStructure (IntPtr src, object structure)
9168 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9170 MonoMethodBuilder *mb;
9171 static MonoMethodSignature *ptostr = NULL;
9175 g_assert (klass != NULL);
9177 mono_marshal_load_type_info (klass);
9179 if (klass->marshal_info->ptr_to_str)
9180 return klass->marshal_info->ptr_to_str;
9183 MonoMethodSignature *sig;
9185 /* Create the signature corresponding to
9186 static void PtrToStructure (IntPtr ptr, object structure);
9187 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9188 sig = mono_create_icall_signature ("void ptr object");
9189 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9191 mono_memory_barrier ();
9195 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9198 if (klass->blittable) {
9199 mono_mb_emit_byte (mb, CEE_LDARG_1);
9200 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9201 mono_mb_emit_byte (mb, CEE_LDARG_0);
9202 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9203 mono_mb_emit_byte (mb, CEE_PREFIX1);
9204 mono_mb_emit_byte (mb, CEE_CPBLK);
9207 /* allocate local 0 (pointer) src_ptr */
9208 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9209 /* allocate local 1 (pointer) dst_ptr */
9210 mono_mb_add_local (mb, &klass->this_arg);
9212 /* initialize src_ptr to point to the start of object data */
9213 mono_mb_emit_byte (mb, CEE_LDARG_0);
9214 mono_mb_emit_stloc (mb, 0);
9216 /* initialize dst_ptr */
9217 mono_mb_emit_byte (mb, CEE_LDARG_1);
9218 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9219 mono_mb_emit_stloc (mb, 1);
9221 emit_struct_conv (mb, klass, TRUE);
9224 mono_mb_emit_byte (mb, CEE_RET);
9226 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9227 res = mono_mb_create (mb, ptostr, 0, info);
9230 mono_marshal_lock ();
9231 if (!klass->marshal_info->ptr_to_str)
9232 klass->marshal_info->ptr_to_str = res;
9234 res = klass->marshal_info->ptr_to_str;
9235 mono_marshal_unlock ();
9240 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9241 * This is used to avoid infinite recursion since it is hard to determine where to
9242 * replace a method with its synchronized wrapper, and where not.
9243 * The runtime should execute METHOD instead of the wrapper.
9246 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9248 MonoMethodBuilder *mb;
9250 MonoMethodSignature *sig;
9252 MonoGenericContext *ctx = NULL;
9253 MonoGenericContainer *container = NULL;
9255 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9256 ctx = &((MonoMethodInflated*)method)->context;
9257 method = ((MonoMethodInflated*)method)->declaring;
9258 container = mono_method_get_generic_container (method);
9260 container = method->klass->generic_container;
9261 g_assert (container);
9264 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9266 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9267 mono_mb_emit_byte (mb, CEE_RET);
9269 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9271 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9272 info->d.synchronized_inner.method = method;
9273 res = mono_mb_create (mb, sig, 0, info);
9277 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9278 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9284 * generates IL code for the synchronized wrapper: the generated method
9285 * calls METHOD while locking 'this' or the parent type.
9288 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9290 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9291 MonoMethodSignature *sig;
9292 MonoExceptionClause *clause;
9293 MonoMethodBuilder *mb;
9297 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9298 MonoGenericContext *ctx = NULL;
9299 MonoMethod *orig_method = NULL;
9300 MonoGenericContainer *container = NULL;
9304 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9307 /* FIXME: Support generic methods too */
9308 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9309 orig_method = method;
9310 ctx = &((MonoMethodInflated*)method)->context;
9311 method = ((MonoMethodInflated*)method)->declaring;
9312 container = mono_method_get_generic_container (method);
9314 container = method->klass->generic_container;
9315 g_assert (container);
9322 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9323 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9327 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9328 if ((res = mono_marshal_find_in_cache (cache, method)))
9332 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9335 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9337 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9338 info->d.synchronized.method = method;
9341 mb->skip_visibility = 1;
9343 if (!MONO_TYPE_IS_VOID (sig->ret))
9344 ret_local = mono_mb_add_local (mb, sig->ret);
9347 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9348 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9350 /* This will throw the type load exception when the wrapper is compiled */
9351 mono_mb_emit_byte (mb, CEE_LDNULL);
9352 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9353 mono_mb_emit_byte (mb, CEE_POP);
9355 if (!MONO_TYPE_IS_VOID (sig->ret))
9356 mono_mb_emit_ldloc (mb, ret_local);
9357 mono_mb_emit_byte (mb, CEE_RET);
9360 res = mono_mb_create_and_cache_full (cache, method,
9361 mb, sig, sig->param_count + 16, info, NULL);
9369 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9370 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9372 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9373 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9376 mono_marshal_lock ();
9378 if (!enter_method) {
9379 MonoMethodDesc *desc;
9381 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9382 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9383 g_assert (enter_method);
9384 mono_method_desc_free (desc);
9386 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9387 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9388 g_assert (exit_method);
9389 mono_method_desc_free (desc);
9391 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9392 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9393 g_assert (gettypefromhandle_method);
9394 mono_method_desc_free (desc);
9397 mono_marshal_unlock ();
9400 /* Push this or the type object */
9401 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9402 /* We have special handling for this in the JIT */
9403 int index = mono_mb_add_data (mb, method->klass);
9404 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9405 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9406 mono_mb_emit_i4 (mb, index);
9408 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9411 mono_mb_emit_ldarg (mb, 0);
9412 mono_mb_emit_stloc (mb, this_local);
9414 /* Call Monitor::Enter() */
9415 mono_mb_emit_ldloc (mb, this_local);
9416 mono_mb_emit_ldloc_addr (mb, taken_local);
9417 mono_mb_emit_managed_call (mb, enter_method, NULL);
9419 clause->try_offset = mono_mb_get_label (mb);
9421 /* Call the method */
9423 mono_mb_emit_ldarg (mb, 0);
9424 for (i = 0; i < sig->param_count; i++)
9425 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9429 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9430 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9432 mono_mb_emit_managed_call (mb, method, NULL);
9435 if (!MONO_TYPE_IS_VOID (sig->ret))
9436 mono_mb_emit_stloc (mb, ret_local);
9438 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9440 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9441 clause->handler_offset = mono_mb_get_label (mb);
9443 /* Call Monitor::Exit() if needed */
9444 mono_mb_emit_ldloc (mb, taken_local);
9445 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9446 mono_mb_emit_ldloc (mb, this_local);
9447 mono_mb_emit_managed_call (mb, exit_method, NULL);
9448 mono_mb_patch_branch (mb, pos2);
9449 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9451 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9453 mono_mb_patch_branch (mb, pos);
9454 if (!MONO_TYPE_IS_VOID (sig->ret))
9455 mono_mb_emit_ldloc (mb, ret_local);
9456 mono_mb_emit_byte (mb, CEE_RET);
9458 mono_mb_set_clauses (mb, 1, clause);
9463 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9464 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9466 res = mono_mb_create_and_cache_full (cache, method,
9467 mb, sig, sig->param_count + 16, info, NULL);
9476 * the returned method calls 'method' unboxing the this argument
9479 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9481 MonoMethodSignature *sig = mono_method_signature (method);
9483 MonoMethodBuilder *mb;
9488 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9490 if ((res = mono_marshal_find_in_cache (cache, method)))
9493 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9495 g_assert (sig->hasthis);
9498 mono_mb_emit_ldarg (mb, 0);
9499 mono_mb_emit_icon (mb, sizeof (MonoObject));
9500 mono_mb_emit_byte (mb, CEE_ADD);
9501 for (i = 0; i < sig->param_count; ++i)
9502 mono_mb_emit_ldarg (mb, i + 1);
9503 mono_mb_emit_managed_call (mb, method, NULL);
9504 mono_mb_emit_byte (mb, CEE_RET);
9507 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9508 info->d.unbox.method = method;
9510 res = mono_mb_create_and_cache_full (cache, method,
9511 mb, sig, sig->param_count + 16, info, NULL);
9514 /* mono_method_print_code (res); */
9520 STELEMREF_OBJECT, /*no check at all*/
9521 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9522 STELEMREF_CLASS, /*only the klass->parents check*/
9523 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9524 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9525 STELEMREF_KIND_COUNT
9528 static const char *strelemref_wrapper_name[] = {
9529 "object", "sealed_class", "class", "interface", "complex"
9533 is_monomorphic_array (MonoClass *klass)
9535 MonoClass *element_class;
9536 if (klass->rank != 1)
9539 element_class = klass->element_class;
9540 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9544 get_virtual_stelemref_kind (MonoClass *element_class)
9546 if (element_class == mono_defaults.object_class)
9547 return STELEMREF_OBJECT;
9548 if (is_monomorphic_array (element_class))
9549 return STELEMREF_SEALED_CLASS;
9550 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9551 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9552 #ifdef COMPRESSED_INTERFACE_BITMAP
9553 return STELEMREF_COMPLEX;
9555 return STELEMREF_INTERFACE;
9557 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9558 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9559 return STELEMREF_COMPLEX;
9560 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9561 return STELEMREF_SEALED_CLASS;
9562 return STELEMREF_CLASS;
9568 load_array_element_address (MonoMethodBuilder *mb)
9570 mono_mb_emit_ldarg (mb, 0);
9571 mono_mb_emit_ldarg (mb, 1);
9572 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9576 load_array_class (MonoMethodBuilder *mb, int aklass)
9578 mono_mb_emit_ldarg (mb, 0);
9579 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9580 mono_mb_emit_byte (mb, CEE_LDIND_I);
9581 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9582 mono_mb_emit_byte (mb, CEE_LDIND_I);
9583 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9584 mono_mb_emit_byte (mb, CEE_LDIND_I);
9585 mono_mb_emit_stloc (mb, aklass);
9589 load_value_class (MonoMethodBuilder *mb, int vklass)
9591 mono_mb_emit_ldarg (mb, 2);
9592 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9593 mono_mb_emit_byte (mb, CEE_LDIND_I);
9594 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9595 mono_mb_emit_byte (mb, CEE_LDIND_I);
9596 mono_mb_emit_stloc (mb, vklass);
9602 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9604 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9605 printf ("slow vstore of %s\n", name);
9612 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9613 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9614 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9615 * - Add a case for arrays of arrays.
9618 get_virtual_stelemref_wrapper (int kind)
9620 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9621 static MonoMethodSignature *signature;
9622 MonoMethodBuilder *mb;
9625 const char *param_names [16];
9626 guint32 b1, b2, b3, b4;
9627 int aklass, vklass, vtable, uiid;
9628 int array_slot_addr;
9631 if (cached_methods [kind])
9632 return cached_methods [kind];
9634 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9635 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9639 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9641 /* void this::stelemref (size_t idx, void* value) */
9642 sig->ret = &mono_defaults.void_class->byval_arg;
9643 sig->hasthis = TRUE;
9644 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9645 sig->params [1] = &mono_defaults.object_class->byval_arg;
9650 param_names [0] = "index";
9651 param_names [1] = "value";
9652 mono_mb_set_param_names (mb, param_names);
9654 /*For now simply call plain old stelemref*/
9656 case STELEMREF_OBJECT:
9657 /* ldelema (implicit bound check) */
9658 load_array_element_address (mb);
9660 mono_mb_emit_ldarg (mb, 2);
9661 mono_mb_emit_byte (mb, CEE_STIND_REF);
9662 mono_mb_emit_byte (mb, CEE_RET);
9665 case STELEMREF_COMPLEX:
9667 <ldelema (bound check)>
9670 if (!mono_object_isinst (value, aklass))
9674 *array_slot_addr = value;
9677 throw new ArrayTypeMismatchException ();
9680 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9681 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9685 /*Use this to debug/record stores that are going thru the slow path*/
9686 MonoMethodSignature *csig;
9687 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9688 csig->ret = &mono_defaults.void_class->byval_arg;
9689 csig->params [0] = &mono_defaults.object_class->byval_arg;
9690 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9691 csig->params [2] = &mono_defaults.object_class->byval_arg;
9692 mono_mb_emit_ldarg (mb, 0);
9693 mono_mb_emit_ldarg (mb, 1);
9694 mono_mb_emit_ldarg (mb, 2);
9695 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9699 /* ldelema (implicit bound check) */
9700 load_array_element_address (mb);
9701 mono_mb_emit_stloc (mb, array_slot_addr);
9703 /* if (!value) goto do_store */
9704 mono_mb_emit_ldarg (mb, 2);
9705 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9707 /* aklass = array->vtable->klass->element_class */
9708 load_array_class (mb, aklass);
9710 /*if (mono_object_isinst (value, aklass)) */
9711 mono_mb_emit_ldarg (mb, 2);
9712 mono_mb_emit_ldloc (mb, aklass);
9713 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9714 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9717 mono_mb_patch_branch (mb, b1);
9718 mono_mb_emit_ldloc (mb, array_slot_addr);
9719 mono_mb_emit_ldarg (mb, 2);
9720 mono_mb_emit_byte (mb, CEE_STIND_REF);
9721 mono_mb_emit_byte (mb, CEE_RET);
9724 mono_mb_patch_branch (mb, b2);
9726 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9729 case STELEMREF_SEALED_CLASS:
9731 <ldelema (bound check)>
9735 aklass = array->vtable->klass->element_class;
9736 vklass = value->vtable->klass;
9738 if (vklass != aklass)
9742 *array_slot_addr = value;
9745 throw new ArrayTypeMismatchException ();
9747 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9748 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9749 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9752 /* ldelema (implicit bound check) */
9753 load_array_element_address (mb);
9754 mono_mb_emit_stloc (mb, array_slot_addr);
9756 /* if (!value) goto do_store */
9757 mono_mb_emit_ldarg (mb, 2);
9758 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9760 /* aklass = array->vtable->klass->element_class */
9761 load_array_class (mb, aklass);
9763 /* vklass = value->vtable->klass */
9764 load_value_class (mb, vklass);
9766 /*if (vklass != aklass) goto do_exception; */
9767 mono_mb_emit_ldloc (mb, aklass);
9768 mono_mb_emit_ldloc (mb, vklass);
9769 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9772 mono_mb_patch_branch (mb, b1);
9773 mono_mb_emit_ldloc (mb, array_slot_addr);
9774 mono_mb_emit_ldarg (mb, 2);
9775 mono_mb_emit_byte (mb, CEE_STIND_REF);
9776 mono_mb_emit_byte (mb, CEE_RET);
9779 mono_mb_patch_branch (mb, b2);
9780 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9783 case STELEMREF_CLASS:
9786 <ldelema (bound check)>
9790 aklass = array->vtable->klass->element_class;
9791 vklass = value->vtable->klass;
9793 if (vklass->idepth < aklass->idepth)
9796 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9800 *array_slot_addr = value;
9804 throw new ArrayTypeMismatchException ();
9806 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9807 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9808 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9810 /* ldelema (implicit bound check) */
9811 load_array_element_address (mb);
9812 mono_mb_emit_stloc (mb, array_slot_addr);
9814 /* if (!value) goto do_store */
9815 mono_mb_emit_ldarg (mb, 2);
9816 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9818 /* aklass = array->vtable->klass->element_class */
9819 load_array_class (mb, aklass);
9821 /* vklass = value->vtable->klass */
9822 load_value_class (mb, vklass);
9824 /*if (mono_object_isinst (value, aklass)) */
9825 mono_mb_emit_ldarg (mb, 2);
9826 mono_mb_emit_ldloc (mb, aklass);
9827 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9828 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9830 /* if (vklass->idepth < aklass->idepth) goto failue */
9831 mono_mb_emit_ldloc (mb, vklass);
9832 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9833 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9835 mono_mb_emit_ldloc (mb, aklass);
9836 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9837 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9839 b3 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9841 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9842 mono_mb_emit_ldloc (mb, vklass);
9843 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9844 mono_mb_emit_byte (mb, CEE_LDIND_I);
9846 mono_mb_emit_ldloc (mb, aklass);
9847 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9848 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9849 mono_mb_emit_icon (mb, 1);
9850 mono_mb_emit_byte (mb, CEE_SUB);
9851 mono_mb_emit_icon (mb, sizeof (void*));
9852 mono_mb_emit_byte (mb, CEE_MUL);
9853 mono_mb_emit_byte (mb, CEE_ADD);
9854 mono_mb_emit_byte (mb, CEE_LDIND_I);
9856 mono_mb_emit_ldloc (mb, aklass);
9857 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9860 mono_mb_patch_branch (mb, b1);
9861 mono_mb_emit_ldloc (mb, array_slot_addr);
9862 mono_mb_emit_ldarg (mb, 2);
9863 mono_mb_emit_byte (mb, CEE_STIND_REF);
9864 mono_mb_emit_byte (mb, CEE_RET);
9867 mono_mb_patch_branch (mb, b2);
9868 mono_mb_patch_branch (mb, b3);
9869 mono_mb_patch_branch (mb, b4);
9871 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9874 case STELEMREF_INTERFACE:
9881 klass = array->obj.vtable->klass->element_class;
9883 uiid = klass->interface_id;
9884 if (uiid > vt->max_interface_id)
9886 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9889 mono_array_setref (array, index, value);
9892 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9894 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9895 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9896 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9897 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9899 /* ldelema (implicit bound check) */
9900 load_array_element_address (mb);
9901 mono_mb_emit_stloc (mb, array_slot_addr);
9903 /* if (!value) goto do_store */
9904 mono_mb_emit_ldarg (mb, 2);
9905 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9907 /* klass = array->vtable->klass->element_class */
9908 load_array_class (mb, aklass);
9910 /* vt = value->vtable */
9911 mono_mb_emit_ldarg (mb, 2);
9912 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9913 mono_mb_emit_byte (mb, CEE_LDIND_I);
9914 mono_mb_emit_stloc (mb, vtable);
9916 /* uiid = klass->interface_id; */
9917 mono_mb_emit_ldloc (mb, aklass);
9918 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9919 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9920 mono_mb_emit_stloc (mb, uiid);
9922 /*if (uiid > vt->max_interface_id)*/
9923 mono_mb_emit_ldloc (mb, uiid);
9924 mono_mb_emit_ldloc (mb, vtable);
9925 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9926 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9927 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9929 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9931 /*vt->interface_bitmap*/
9932 mono_mb_emit_ldloc (mb, vtable);
9933 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9934 mono_mb_emit_byte (mb, CEE_LDIND_I);
9937 mono_mb_emit_ldloc (mb, uiid);
9938 mono_mb_emit_icon (mb, 3);
9939 mono_mb_emit_byte (mb, CEE_SHR_UN);
9941 /*vt->interface_bitmap [(uiid) >> 3]*/
9942 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9943 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9945 /*(1 << ((uiid)&7)))*/
9946 mono_mb_emit_icon (mb, 1);
9947 mono_mb_emit_ldloc (mb, uiid);
9948 mono_mb_emit_icon (mb, 7);
9949 mono_mb_emit_byte (mb, CEE_AND);
9950 mono_mb_emit_byte (mb, CEE_SHL);
9952 /*bitwise and the whole thing*/
9953 mono_mb_emit_byte (mb, CEE_AND);
9954 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9957 mono_mb_patch_branch (mb, b1);
9958 mono_mb_emit_ldloc (mb, array_slot_addr);
9959 mono_mb_emit_ldarg (mb, 2);
9960 mono_mb_emit_byte (mb, CEE_STIND_REF);
9961 mono_mb_emit_byte (mb, CEE_RET);
9964 mono_mb_patch_branch (mb, b2);
9965 mono_mb_patch_branch (mb, b3);
9966 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9970 mono_mb_emit_ldarg (mb, 0);
9971 mono_mb_emit_ldarg (mb, 1);
9972 mono_mb_emit_ldarg (mb, 2);
9973 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9974 mono_mb_emit_byte (mb, CEE_RET);
9977 #endif /* DISABLE_JIT */
9978 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9979 info->d.virtual_stelemref.kind = kind;
9980 res = mono_mb_create (mb, signature, 4, info);
9981 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9983 mono_marshal_lock ();
9984 if (!cached_methods [kind]) {
9985 cached_methods [kind] = res;
9986 mono_marshal_unlock ();
9988 mono_marshal_unlock ();
9989 mono_free_method (res);
9993 return cached_methods [kind];
9997 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10001 g_assert (array_class->rank == 1);
10002 kind = get_virtual_stelemref_kind (array_class->element_class);
10004 return get_virtual_stelemref_wrapper (kind);
10008 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
10013 *nwrappers = STELEMREF_KIND_COUNT;
10014 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
10015 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
10016 res [i] = get_virtual_stelemref_wrapper (i);
10021 mono_marshal_get_stelemref (void)
10023 static MonoMethod* ret = NULL;
10024 MonoMethodSignature *sig;
10025 MonoMethodBuilder *mb;
10028 guint32 b1, b2, b3, b4;
10030 int aklass, vklass;
10031 int array_slot_addr;
10036 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10039 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10041 /* void stelemref (void* array, int idx, void* value) */
10042 sig->ret = &mono_defaults.void_class->byval_arg;
10043 sig->params [0] = &mono_defaults.object_class->byval_arg;
10044 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10045 sig->params [2] = &mono_defaults.object_class->byval_arg;
10047 #ifndef DISABLE_JIT
10048 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10049 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10050 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10054 <ldelema (bound check)>
10058 aklass = array->vtable->klass->element_class;
10059 vklass = value->vtable->klass;
10061 if (vklass->idepth < aklass->idepth)
10064 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10068 *array_slot_addr = value;
10072 if (mono_object_isinst (value, aklass))
10075 throw new ArrayTypeMismatchException ();
10078 /* ldelema (implicit bound check) */
10079 mono_mb_emit_ldarg (mb, 0);
10080 mono_mb_emit_ldarg (mb, 1);
10081 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10082 mono_mb_emit_stloc (mb, array_slot_addr);
10084 /* if (!value) goto do_store */
10085 mono_mb_emit_ldarg (mb, 2);
10086 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10088 /* aklass = array->vtable->klass->element_class */
10089 mono_mb_emit_ldarg (mb, 0);
10090 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10091 mono_mb_emit_byte (mb, CEE_LDIND_I);
10092 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10093 mono_mb_emit_byte (mb, CEE_LDIND_I);
10094 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10095 mono_mb_emit_byte (mb, CEE_LDIND_I);
10096 mono_mb_emit_stloc (mb, aklass);
10098 /* vklass = value->vtable->klass */
10099 mono_mb_emit_ldarg (mb, 2);
10100 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10101 mono_mb_emit_byte (mb, CEE_LDIND_I);
10102 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10103 mono_mb_emit_byte (mb, CEE_LDIND_I);
10104 mono_mb_emit_stloc (mb, vklass);
10106 /* if (vklass->idepth < aklass->idepth) goto failue */
10107 mono_mb_emit_ldloc (mb, vklass);
10108 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10109 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10111 mono_mb_emit_ldloc (mb, aklass);
10112 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10113 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10115 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10117 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10118 mono_mb_emit_ldloc (mb, vklass);
10119 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10120 mono_mb_emit_byte (mb, CEE_LDIND_I);
10122 mono_mb_emit_ldloc (mb, aklass);
10123 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10124 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10125 mono_mb_emit_icon (mb, 1);
10126 mono_mb_emit_byte (mb, CEE_SUB);
10127 mono_mb_emit_icon (mb, sizeof (void*));
10128 mono_mb_emit_byte (mb, CEE_MUL);
10129 mono_mb_emit_byte (mb, CEE_ADD);
10130 mono_mb_emit_byte (mb, CEE_LDIND_I);
10132 mono_mb_emit_ldloc (mb, aklass);
10134 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10136 copy_pos = mono_mb_get_label (mb);
10138 mono_mb_patch_branch (mb, b1);
10139 mono_mb_emit_ldloc (mb, array_slot_addr);
10140 mono_mb_emit_ldarg (mb, 2);
10141 mono_mb_emit_byte (mb, CEE_STIND_REF);
10143 mono_mb_emit_byte (mb, CEE_RET);
10146 mono_mb_patch_branch (mb, b2);
10147 mono_mb_patch_branch (mb, b3);
10149 mono_mb_emit_ldarg (mb, 2);
10150 mono_mb_emit_ldloc (mb, aklass);
10151 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10153 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10154 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10155 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10157 mono_mb_emit_byte (mb, CEE_RET);
10159 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10160 ret = mono_mb_create (mb, sig, 4, info);
10167 * mono_marshal_get_gsharedvt_in_wrapper:
10169 * This wrapper handles calls from normal code to gsharedvt code.
10172 mono_marshal_get_gsharedvt_in_wrapper (void)
10174 static MonoMethod* ret = NULL;
10175 MonoMethodSignature *sig;
10176 MonoMethodBuilder *mb;
10182 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10184 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10185 sig->ret = &mono_defaults.void_class->byval_arg;
10187 #ifndef DISABLE_JIT
10189 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10191 mono_mb_emit_byte (mb, CEE_RET);
10193 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10194 ret = mono_mb_create (mb, sig, 4, info);
10201 * mono_marshal_get_gsharedvt_out_wrapper:
10203 * This wrapper handles calls from gsharedvt code to normal code.
10206 mono_marshal_get_gsharedvt_out_wrapper (void)
10208 static MonoMethod* ret = NULL;
10209 MonoMethodSignature *sig;
10210 MonoMethodBuilder *mb;
10216 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10218 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10219 sig->ret = &mono_defaults.void_class->byval_arg;
10221 #ifndef DISABLE_JIT
10223 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10225 mono_mb_emit_byte (mb, CEE_RET);
10227 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10228 ret = mono_mb_create (mb, sig, 4, info);
10237 MonoMethod *method;
10240 /* LOCKING: vars accessed under the marshal lock */
10241 static ArrayElemAddr *elem_addr_cache = NULL;
10242 static int elem_addr_cache_size = 0;
10243 static int elem_addr_cache_next = 0;
10246 * mono_marshal_get_array_address:
10247 * @rank: rank of the array type
10248 * @elem_size: size in bytes of an element of an array.
10250 * Returns a MonoMethod that implements the code to get the address
10251 * of an element in a multi-dimenasional array of @rank dimensions.
10252 * The returned method takes an array as the first argument and then
10253 * @rank indexes for the @rank dimensions.
10254 * If ELEM_SIZE is 0, read the array size from the array object.
10257 mono_marshal_get_array_address (int rank, int elem_size)
10260 MonoMethodBuilder *mb;
10261 MonoMethodSignature *sig;
10264 int i, bounds, ind, realidx;
10265 int branch_pos, *branch_positions;
10269 mono_marshal_lock ();
10270 for (i = 0; i < elem_addr_cache_next; ++i) {
10271 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10272 ret = elem_addr_cache [i].method;
10276 mono_marshal_unlock ();
10280 branch_positions = g_new0 (int, rank);
10282 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10284 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10285 sig->ret = &mono_defaults.int_class->byval_arg;
10286 sig->params [0] = &mono_defaults.object_class->byval_arg;
10287 for (i = 0; i < rank; ++i) {
10288 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10291 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10292 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10295 #ifndef DISABLE_JIT
10296 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10297 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10298 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10300 /* bounds = array->bounds; */
10301 mono_mb_emit_ldarg (mb, 0);
10302 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10303 mono_mb_emit_byte (mb, CEE_LDIND_I);
10304 mono_mb_emit_stloc (mb, bounds);
10306 /* ind is the overall element index, realidx is the partial index in a single dimension */
10307 /* ind = idx0 - bounds [0].lower_bound */
10308 mono_mb_emit_ldarg (mb, 1);
10309 mono_mb_emit_ldloc (mb, bounds);
10310 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10311 mono_mb_emit_byte (mb, CEE_ADD);
10312 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10313 mono_mb_emit_byte (mb, CEE_SUB);
10314 mono_mb_emit_stloc (mb, ind);
10315 /* if (ind >= bounds [0].length) goto exeception; */
10316 mono_mb_emit_ldloc (mb, ind);
10317 mono_mb_emit_ldloc (mb, bounds);
10318 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10319 mono_mb_emit_byte (mb, CEE_ADD);
10320 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10321 /* note that we use unsigned comparison */
10322 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10324 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10325 * We could also decide to ignore the passed elem_size and get it
10326 * from the array object, to reduce the number of methods we generate:
10327 * the additional cost is 3 memory loads and a non-immediate mul.
10329 for (i = 1; i < rank; ++i) {
10330 /* realidx = idxi - bounds [i].lower_bound */
10331 mono_mb_emit_ldarg (mb, 1 + i);
10332 mono_mb_emit_ldloc (mb, bounds);
10333 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10334 mono_mb_emit_byte (mb, CEE_ADD);
10335 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10336 mono_mb_emit_byte (mb, CEE_SUB);
10337 mono_mb_emit_stloc (mb, realidx);
10338 /* if (realidx >= bounds [i].length) goto exeception; */
10339 mono_mb_emit_ldloc (mb, realidx);
10340 mono_mb_emit_ldloc (mb, bounds);
10341 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10342 mono_mb_emit_byte (mb, CEE_ADD);
10343 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10344 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10345 /* ind = ind * bounds [i].length + realidx */
10346 mono_mb_emit_ldloc (mb, ind);
10347 mono_mb_emit_ldloc (mb, bounds);
10348 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10349 mono_mb_emit_byte (mb, CEE_ADD);
10350 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10351 mono_mb_emit_byte (mb, CEE_MUL);
10352 mono_mb_emit_ldloc (mb, realidx);
10353 mono_mb_emit_byte (mb, CEE_ADD);
10354 mono_mb_emit_stloc (mb, ind);
10357 /* return array->vector + ind * element_size */
10358 mono_mb_emit_ldarg (mb, 0);
10359 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10360 mono_mb_emit_ldloc (mb, ind);
10362 mono_mb_emit_icon (mb, elem_size);
10364 /* Load arr->vtable->klass->sizes.element_class */
10365 mono_mb_emit_ldarg (mb, 0);
10366 mono_mb_emit_byte (mb, CEE_CONV_I);
10367 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10368 mono_mb_emit_byte (mb, CEE_ADD);
10369 mono_mb_emit_byte (mb, CEE_LDIND_I);
10370 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10371 mono_mb_emit_byte (mb, CEE_ADD);
10372 mono_mb_emit_byte (mb, CEE_LDIND_I);
10373 /* sizes is an union, so this reads sizes.element_size */
10374 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10375 mono_mb_emit_byte (mb, CEE_ADD);
10376 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10378 mono_mb_emit_byte (mb, CEE_MUL);
10379 mono_mb_emit_byte (mb, CEE_ADD);
10380 mono_mb_emit_byte (mb, CEE_RET);
10382 /* patch the branches to get here and throw */
10383 for (i = 1; i < rank; ++i) {
10384 mono_mb_patch_branch (mb, branch_positions [i]);
10386 mono_mb_patch_branch (mb, branch_pos);
10387 /* throw exception */
10388 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10390 g_free (branch_positions);
10391 #endif /* DISABLE_JIT */
10393 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10394 info->d.element_addr.rank = rank;
10395 info->d.element_addr.elem_size = elem_size;
10396 ret = mono_mb_create (mb, sig, 4, info);
10399 /* cache the result */
10401 mono_marshal_lock ();
10402 for (i = 0; i < elem_addr_cache_next; ++i) {
10403 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10404 /* FIXME: free ret */
10405 ret = elem_addr_cache [i].method;
10411 if (elem_addr_cache_next >= elem_addr_cache_size) {
10412 int new_size = elem_addr_cache_size + 4;
10413 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10414 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10415 g_free (elem_addr_cache);
10416 elem_addr_cache = new_array;
10417 elem_addr_cache_size = new_size;
10419 elem_addr_cache [elem_addr_cache_next].rank = rank;
10420 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10421 elem_addr_cache [elem_addr_cache_next].method = ret;
10422 elem_addr_cache_next ++;
10424 mono_marshal_unlock ();
10429 * mono_marshal_get_array_accessor_wrapper:
10431 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10434 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10436 MonoMethodSignature *sig;
10437 MonoMethodBuilder *mb;
10441 MonoGenericContext *ctx = NULL;
10442 MonoMethod *orig_method = NULL;
10443 MonoGenericContainer *container = NULL;
10447 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10448 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10449 * FIXME: Use generic methods.
10456 g_assert_not_reached ();
10458 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10459 if ((res = mono_marshal_find_in_cache (cache, method)))
10463 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10466 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10468 #ifndef DISABLE_JIT
10469 /* Call the method */
10471 mono_mb_emit_ldarg (mb, 0);
10472 for (i = 0; i < sig->param_count; i++)
10473 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10477 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10478 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10480 mono_mb_emit_managed_call (mb, method, NULL);
10482 mono_mb_emit_byte (mb, CEE_RET);
10485 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10486 info->d.array_accessor.method = method;
10490 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10491 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10493 res = mono_mb_create_and_cache_full (cache, method,
10494 mb, sig, sig->param_count + 16,
10503 mono_marshal_alloc (gulong size, MonoError *error)
10507 mono_error_init (error);
10510 res = CoTaskMemAlloc (size);
10512 res = g_try_malloc ((gulong)size);
10514 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10519 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10521 ves_icall_marshal_alloc (gulong size)
10524 void *ret = mono_marshal_alloc (size, &error);
10525 if (!mono_error_ok (&error)) {
10526 mono_error_set_pending_exception (&error);
10534 mono_marshal_free (gpointer ptr)
10537 CoTaskMemFree (ptr);
10544 mono_marshal_free_array (gpointer *ptr, int size)
10551 for (i = 0; i < size; i++)
10557 mono_marshal_string_to_utf16 (MonoString *s)
10559 return s ? mono_string_chars (s) : NULL;
10562 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10564 mono_marshal_string_to_utf16_copy (MonoString *s)
10570 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10571 if (!mono_error_ok (&error)) {
10572 mono_error_set_pending_exception (&error);
10575 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10576 res [mono_string_length (s)] = 0;
10582 * mono_marshal_set_last_error:
10584 * This function is invoked to set the last error value from a P/Invoke call
10585 * which has SetLastError set.
10588 mono_marshal_set_last_error (void)
10591 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10593 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10598 mono_marshal_set_last_error_windows (int error)
10601 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10606 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10607 gpointer dest, gint32 length)
10612 MONO_CHECK_ARG_NULL (src,);
10613 MONO_CHECK_ARG_NULL (dest,);
10615 if (src->obj.vtable->klass->rank != 1) {
10616 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10619 if (start_index < 0) {
10620 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10624 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10627 if (start_index + length > mono_array_length (src)) {
10628 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10632 element_size = mono_array_element_size (src->obj.vtable->klass);
10634 /* no references should be involved */
10635 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10637 memcpy (dest, source_addr, length * element_size);
10641 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10642 MonoArray *dest, gint32 length)
10647 MONO_CHECK_ARG_NULL (src,);
10648 MONO_CHECK_ARG_NULL (dest,);
10650 if (dest->obj.vtable->klass->rank != 1) {
10651 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10654 if (start_index < 0) {
10655 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10659 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10662 if (start_index + length > mono_array_length (dest)) {
10663 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10666 element_size = mono_array_element_size (dest->obj.vtable->klass);
10668 /* no references should be involved */
10669 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10671 memcpy (dest_addr, src, length * element_size);
10675 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10680 return mono_string_new (mono_domain_get (), ptr);
10684 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10687 MonoString *result = NULL;
10688 mono_error_init (&error);
10690 mono_error_set_argument_null (&error, "ptr", "");
10692 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10693 mono_error_set_pending_exception (&error);
10698 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10701 MonoString *res = NULL;
10702 MonoDomain *domain = mono_domain_get ();
10712 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10713 if (!mono_error_ok (&error)) {
10714 mono_error_set_pending_exception (&error);
10721 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10724 MonoString *res = NULL;
10725 MonoDomain *domain = mono_domain_get ();
10727 mono_error_init (&error);
10731 mono_error_set_argument_null (&error, "ptr", "");
10733 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10736 if (!mono_error_ok (&error))
10737 mono_error_set_pending_exception (&error);
10742 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10744 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10748 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10754 MONO_CHECK_ARG_NULL (rtype, 0);
10756 type = rtype->type;
10757 klass = mono_class_from_mono_type (type);
10758 if (!mono_class_init (klass)) {
10759 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10763 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10765 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10766 return sizeof (gpointer);
10767 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10769 MonoException *exc;
10771 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10772 exc = mono_get_exception_argument ("t", msg);
10774 mono_set_pending_exception (exc);
10778 return mono_class_native_size (klass, NULL);
10782 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10785 MonoMethod *method;
10788 MONO_CHECK_ARG_NULL (obj,);
10789 MONO_CHECK_ARG_NULL (dst,);
10791 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10795 pa [2] = &delete_old;
10797 mono_runtime_invoke_checked (method, NULL, pa, &error);
10798 if (!mono_error_ok (&error))
10799 mono_error_set_pending_exception (&error);
10803 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10805 MonoMethod *method;
10808 mono_error_init (error);
10810 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10815 mono_runtime_invoke_checked (method, NULL, pa, error);
10819 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10824 MONO_CHECK_ARG_NULL (src,);
10825 MONO_CHECK_ARG_NULL (dst,);
10827 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10829 if (t->type == MONO_TYPE_VALUETYPE) {
10830 MonoException *exc;
10833 tmp = g_strdup_printf ("Destination is a boxed value type.");
10834 exc = mono_get_exception_argument ("dst", tmp);
10837 mono_set_pending_exception (exc);
10841 ptr_to_structure (src, dst, &error);
10842 if (!mono_error_ok (&error))
10843 mono_error_set_pending_exception (&error);
10847 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10851 MonoDomain *domain = mono_domain_get ();
10856 MONO_CHECK_ARG_NULL (type, NULL);
10858 klass = mono_class_from_mono_type (type->type);
10859 if (!mono_class_init (klass)) {
10860 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10864 res = mono_object_new_checked (domain, klass, &error);
10865 if (!mono_error_ok (&error)) {
10866 mono_error_set_pending_exception (&error);
10870 ptr_to_structure (src, res, &error);
10871 if (!mono_error_ok (&error)) {
10872 mono_error_set_pending_exception (&error);
10880 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10883 MonoMarshalType *info;
10886 int match_index = -1;
10888 MONO_CHECK_ARG_NULL (type, 0);
10889 MONO_CHECK_ARG_NULL (field_name, 0);
10891 fname = mono_string_to_utf8_checked (field_name, &error);
10892 if (mono_error_set_pending_exception (&error))
10894 klass = mono_class_from_mono_type (type->type);
10895 if (!mono_class_init (klass)) {
10896 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10900 while (klass && match_index == -1) {
10901 MonoClassField* field;
10903 gpointer iter = NULL;
10904 while ((field = mono_class_get_fields (klass, &iter))) {
10905 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10907 if (!strcmp (fname, mono_field_get_name (field))) {
10914 if (match_index == -1)
10915 klass = klass->parent;
10920 if(match_index == -1) {
10921 MonoException* exc;
10924 /* Get back original class instance */
10925 klass = mono_class_from_mono_type (type->type);
10927 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10928 exc = mono_get_exception_argument ("fieldName", tmp);
10931 mono_set_pending_exception ((MonoException*)exc);
10935 info = mono_marshal_load_type_info (klass);
10936 return info->fields [match_index].offset;
10940 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10946 tres = mono_string_to_utf8_checked (string, &error);
10947 if (mono_error_set_pending_exception (&error))
10952 len = strlen (tres) + 1;
10953 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10954 memcpy (ret, tres, len);
10959 char *ret = mono_string_to_utf8_checked (string, &error);
10960 mono_error_set_pending_exception (&error);
10966 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10968 if (string == NULL)
10971 #ifdef TARGET_WIN32
10972 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10973 ((mono_string_length (string) + 1) * 2);
10975 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10977 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10978 res [mono_string_length (string)] = 0;
10984 mono_struct_delete_old (MonoClass *klass, char *ptr)
10986 MonoMarshalType *info;
10989 info = mono_marshal_load_type_info (klass);
10991 for (i = 0; i < info->num_fields; i++) {
10992 MonoMarshalConv conv;
10993 MonoType *ftype = info->fields [i].field->type;
10996 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10999 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11000 klass->unicode, &conv);
11002 cpos = ptr + info->fields [i].offset;
11005 case MONO_MARSHAL_CONV_NONE:
11006 if (MONO_TYPE_ISSTRUCT (ftype)) {
11007 mono_struct_delete_old (ftype->data.klass, cpos);
11011 case MONO_MARSHAL_CONV_STR_LPWSTR:
11012 /* We assume this field points inside a MonoString */
11014 case MONO_MARSHAL_CONV_STR_LPTSTR:
11015 #ifdef TARGET_WIN32
11016 /* We assume this field points inside a MonoString
11020 case MONO_MARSHAL_CONV_STR_LPSTR:
11021 case MONO_MARSHAL_CONV_STR_BSTR:
11022 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11023 case MONO_MARSHAL_CONV_STR_TBSTR:
11024 mono_marshal_free (*(gpointer *)cpos);
11034 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11038 MONO_CHECK_ARG_NULL (src,);
11039 MONO_CHECK_ARG_NULL (type,);
11041 klass = mono_class_from_mono_type (type->type);
11042 if (!mono_class_init (klass)) {
11043 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11047 mono_struct_delete_old (klass, (char *)src);
11051 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
11054 size_t s = (size_t)size;
11057 /* This returns a valid pointer for size 0 on MS.NET */
11061 res = GlobalAlloc (GMEM_FIXED, s);
11063 res = g_try_malloc (s);
11066 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11074 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
11077 size_t s = (size_t)size;
11080 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11085 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
11087 res = g_try_realloc (ptr, s);
11090 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11098 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11108 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11113 res = CoTaskMemAlloc (size);
11115 if ((gulong)size == 0)
11116 /* This returns a valid pointer for size 0 on MS.NET */
11119 res = g_try_malloc ((gulong)size);
11122 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11129 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11132 CoTaskMemFree (ptr);
11139 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11144 res = CoTaskMemRealloc (ptr, size);
11146 res = g_try_realloc (ptr, (gulong)size);
11149 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11156 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11158 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11162 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11164 MonoClass *klass = mono_type_get_class (type->type);
11165 if (!mono_class_init (klass)) {
11166 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11170 return mono_ftnptr_to_delegate (klass, ftn);
11174 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11176 return mono_delegate_to_ftnptr (delegate);
11180 * mono_marshal_is_loading_type_info:
11182 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11186 mono_marshal_is_loading_type_info (MonoClass *klass)
11188 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11190 return g_slist_find (loads_list, klass) != NULL;
11194 * mono_marshal_load_type_info:
11196 * Initialize klass->marshal_info using information from metadata. This function can
11197 * recursively call itself, and the caller is responsible to avoid that by calling
11198 * mono_marshal_is_loading_type_info () beforehand.
11200 * LOCKING: Acquires the loader lock.
11203 mono_marshal_load_type_info (MonoClass* klass)
11206 guint32 native_size = 0, min_align = 1, packing;
11207 MonoMarshalType *info;
11208 MonoClassField* field;
11211 GSList *loads_list;
11213 g_assert (klass != NULL);
11215 if (klass->marshal_info)
11216 return klass->marshal_info;
11218 if (!klass->inited)
11219 mono_class_init (klass);
11221 if (klass->marshal_info)
11222 return klass->marshal_info;
11225 * This function can recursively call itself, so we keep the list of classes which are
11226 * under initialization in a TLS list.
11228 g_assert (!mono_marshal_is_loading_type_info (klass));
11229 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11230 loads_list = g_slist_prepend (loads_list, klass);
11231 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11234 while ((field = mono_class_get_fields (klass, &iter))) {
11235 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11237 if (mono_field_is_deleted (field))
11242 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11244 /* The mempool is protected by the loader lock */
11245 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11246 info->num_fields = count;
11248 /* Try to find a size for this type in metadata */
11249 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11251 if (klass->parent) {
11252 int parent_size = mono_class_native_size (klass->parent, NULL);
11254 /* Add parent size to real size */
11255 native_size += parent_size;
11256 info->native_size = parent_size;
11259 packing = klass->packing_size ? klass->packing_size : 8;
11262 while ((field = mono_class_get_fields (klass, &iter))) {
11266 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11269 if (mono_field_is_deleted (field))
11271 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11272 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11273 NULL, NULL, &info->fields [j].mspec);
11275 info->fields [j].field = field;
11277 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11278 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11279 /* This field is a hack inserted by MCS to empty structures */
11284 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11285 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11286 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11287 &align, TRUE, klass->unicode);
11288 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11289 min_align = MAX (align, min_align);
11290 info->fields [j].offset = info->native_size;
11291 info->fields [j].offset += align - 1;
11292 info->fields [j].offset &= ~(align - 1);
11293 info->native_size = info->fields [j].offset + size;
11295 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11296 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11297 &align, TRUE, klass->unicode);
11298 min_align = MAX (align, min_align);
11299 info->fields [j].offset = field->offset - sizeof (MonoObject);
11300 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11306 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11307 info->native_size = MAX (native_size, info->native_size);
11309 * If the provided Size is equal or larger than the calculated size, and there
11310 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11312 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11313 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11316 min_align = MIN (min_align, packing);
11320 if (info->native_size & (min_align - 1)) {
11321 info->native_size += min_align - 1;
11322 info->native_size &= ~(min_align - 1);
11325 info->min_align = min_align;
11327 /* Update the class's blittable info, if the layouts don't match */
11328 if (info->native_size != mono_class_value_size (klass, NULL))
11329 klass->blittable = FALSE;
11331 /* If this is an array type, ensure that we have element info */
11332 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11333 mono_marshal_load_type_info (klass->element_class);
11336 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11337 loads_list = g_slist_remove (loads_list, klass);
11338 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11340 mono_marshal_lock ();
11341 if (!klass->marshal_info) {
11342 /*We do double-checking locking on marshal_info */
11343 mono_memory_barrier ();
11344 klass->marshal_info = info;
11346 mono_marshal_unlock ();
11348 return klass->marshal_info;
11352 * mono_class_native_size:
11355 * Returns: the native size of an object instance (when marshaled
11356 * to unmanaged code)
11359 mono_class_native_size (MonoClass *klass, guint32 *align)
11361 if (!klass->marshal_info) {
11362 if (mono_marshal_is_loading_type_info (klass)) {
11367 mono_marshal_load_type_info (klass);
11372 *align = klass->marshal_info->min_align;
11374 return klass->marshal_info->native_size;
11378 * mono_type_native_stack_size:
11379 * @t: the type to return the size it uses on the stack
11381 * Returns: the number of bytes required to hold an instance of this
11382 * type on the native stack
11385 mono_type_native_stack_size (MonoType *t, guint32 *align)
11389 g_assert (t != NULL);
11395 *align = sizeof (gpointer);
11396 return sizeof (gpointer);
11400 case MONO_TYPE_BOOLEAN:
11401 case MONO_TYPE_CHAR:
11412 case MONO_TYPE_STRING:
11413 case MONO_TYPE_OBJECT:
11414 case MONO_TYPE_CLASS:
11415 case MONO_TYPE_SZARRAY:
11416 case MONO_TYPE_PTR:
11417 case MONO_TYPE_FNPTR:
11418 case MONO_TYPE_ARRAY:
11419 *align = sizeof (gpointer);
11420 return sizeof (gpointer);
11425 *align = MONO_ABI_ALIGNOF (double);
11429 *align = MONO_ABI_ALIGNOF (gint64);
11431 case MONO_TYPE_GENERICINST:
11432 if (!mono_type_generic_inst_is_valuetype (t)) {
11433 *align = sizeof (gpointer);
11434 return sizeof (gpointer);
11437 case MONO_TYPE_TYPEDBYREF:
11438 case MONO_TYPE_VALUETYPE: {
11440 MonoClass *klass = mono_class_from_mono_type (t);
11442 if (klass->enumtype)
11443 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11445 size = mono_class_native_size (klass, align);
11446 *align = *align + 3;
11456 g_error ("type 0x%02x unknown", t->type);
11462 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11463 gboolean as_field, gboolean unicode)
11465 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11468 switch (native_type) {
11469 case MONO_NATIVE_BOOLEAN:
11472 case MONO_NATIVE_I1:
11473 case MONO_NATIVE_U1:
11476 case MONO_NATIVE_I2:
11477 case MONO_NATIVE_U2:
11478 case MONO_NATIVE_VARIANTBOOL:
11481 case MONO_NATIVE_I4:
11482 case MONO_NATIVE_U4:
11483 case MONO_NATIVE_ERROR:
11486 case MONO_NATIVE_I8:
11487 case MONO_NATIVE_U8:
11488 *align = MONO_ABI_ALIGNOF (gint64);
11490 case MONO_NATIVE_R4:
11493 case MONO_NATIVE_R8:
11494 *align = MONO_ABI_ALIGNOF (double);
11496 case MONO_NATIVE_INT:
11497 case MONO_NATIVE_UINT:
11498 case MONO_NATIVE_LPSTR:
11499 case MONO_NATIVE_LPWSTR:
11500 case MONO_NATIVE_LPTSTR:
11501 case MONO_NATIVE_BSTR:
11502 case MONO_NATIVE_ANSIBSTR:
11503 case MONO_NATIVE_TBSTR:
11504 case MONO_NATIVE_LPARRAY:
11505 case MONO_NATIVE_SAFEARRAY:
11506 case MONO_NATIVE_IUNKNOWN:
11507 case MONO_NATIVE_IDISPATCH:
11508 case MONO_NATIVE_INTERFACE:
11509 case MONO_NATIVE_ASANY:
11510 case MONO_NATIVE_FUNC:
11511 case MONO_NATIVE_LPSTRUCT:
11512 *align = MONO_ABI_ALIGNOF (gpointer);
11513 return sizeof (gpointer);
11514 case MONO_NATIVE_STRUCT:
11515 klass = mono_class_from_mono_type (type);
11516 if (klass == mono_defaults.object_class &&
11517 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11521 return mono_class_native_size (klass, align);
11522 case MONO_NATIVE_BYVALTSTR: {
11523 int esize = unicode ? 2: 1;
11526 return mspec->data.array_data.num_elem * esize;
11528 case MONO_NATIVE_BYVALARRAY: {
11529 // FIXME: Have to consider ArraySubType
11531 klass = mono_class_from_mono_type (type);
11532 if (klass->element_class == mono_defaults.char_class) {
11533 esize = unicode ? 2 : 1;
11536 esize = mono_class_native_size (klass->element_class, align);
11539 return mspec->data.array_data.num_elem * esize;
11541 case MONO_NATIVE_CUSTOM:
11542 *align = sizeof (gpointer);
11543 return sizeof (gpointer);
11545 case MONO_NATIVE_CURRENCY:
11546 case MONO_NATIVE_VBBYREFSTR:
11548 g_error ("native type %02x not implemented", native_type);
11551 g_assert_not_reached ();
11555 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11557 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11566 t = &o->vtable->klass->byval_arg;
11570 case MONO_TYPE_PTR:
11573 case MONO_TYPE_BOOLEAN:
11576 case MONO_TYPE_CHAR:
11581 return mono_object_unbox (o);
11583 case MONO_TYPE_STRING:
11584 switch (string_encoding) {
11585 case MONO_NATIVE_LPWSTR:
11586 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11588 case MONO_NATIVE_LPSTR:
11589 return mono_string_to_lpstr ((MonoString*)o);
11592 g_warning ("marshaling conversion %d not implemented", string_encoding);
11593 g_assert_not_reached ();
11596 case MONO_TYPE_CLASS:
11597 case MONO_TYPE_VALUETYPE: {
11598 MonoMethod *method;
11601 MonoBoolean delete_old = FALSE;
11603 klass = t->data.klass;
11605 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11608 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11609 klass->blittable || klass->enumtype))
11610 return mono_object_unbox (o);
11612 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11613 if (!mono_error_ok (&error)) {
11614 mono_error_set_pending_exception (&error);
11618 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11619 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11623 pa [2] = &delete_old;
11625 mono_runtime_invoke_checked (method, NULL, pa, &error);
11626 if (!mono_error_ok (&error)) {
11627 mono_error_set_pending_exception (&error);
11637 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11641 /* This is a JIT icall, it sets the pending exception */
11643 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11652 t = &o->vtable->klass->byval_arg;
11654 case MONO_TYPE_STRING:
11655 switch (string_encoding) {
11656 case MONO_NATIVE_LPWSTR:
11657 case MONO_NATIVE_LPSTR:
11658 mono_marshal_free (ptr);
11661 g_warning ("marshaling conversion %d not implemented", string_encoding);
11662 g_assert_not_reached ();
11665 case MONO_TYPE_CLASS:
11666 case MONO_TYPE_VALUETYPE: {
11667 klass = t->data.klass;
11669 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11670 klass->blittable || klass->enumtype))
11673 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11674 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11680 mono_runtime_invoke_checked (method, NULL, pa, &error);
11681 if (!mono_error_ok (&error)) {
11682 mono_error_set_pending_exception (&error);
11687 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11688 mono_struct_delete_old (klass, (char *)ptr);
11691 mono_marshal_free (ptr);
11700 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11702 MonoMethodSignature *sig, *csig;
11703 MonoMethodBuilder *mb;
11708 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11709 mb->method->slot = -1;
11711 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11712 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11714 sig = mono_method_signature (method);
11715 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11716 csig->generic_param_count = 0;
11718 #ifndef DISABLE_JIT
11719 mono_mb_emit_ldarg (mb, 0);
11720 for (i = 0; i < csig->param_count; i++)
11721 mono_mb_emit_ldarg (mb, i + 1);
11722 mono_mb_emit_managed_call (mb, method, NULL);
11723 mono_mb_emit_byte (mb, CEE_RET);
11725 /* We can corlib internal methods */
11726 mb->skip_visibility = TRUE;
11728 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11729 info->d.generic_array_helper.method = method;
11730 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11738 * The mono_win32_compat_* functions are implementations of inline
11739 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11740 * although not exported by kernel32.
11742 * We map the appropiate kernel32 entries to these functions using
11743 * dllmaps declared in the global etc/mono/config.
11747 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11749 if (!dest || !source)
11752 memcpy (dest, source, length);
11756 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11758 memset (dest, fill, length);
11762 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11764 if (!dest || !source)
11767 memmove (dest, source, length);
11771 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11773 memset (dest, 0, length);
11777 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11782 for (i = 0; i < len; ++i)
11786 g_assert (i < len);
11789 while (byte && !(byte & 1))
11791 g_assert (byte == 1);
11794 *bitmask = buf [i];
11798 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11800 MonoMethodBuilder *mb;
11801 MonoMethodSignature *sig, *csig;
11802 MonoExceptionClause *clause;
11807 int i, param_count, sig_size, pos_leave;
11811 // FIXME: we need to store the exception into a MonoHandle
11812 g_assert (!mono_threads_is_coop_enabled ());
11814 klass = method->klass;
11815 image = method->klass->image;
11817 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11819 if ((res = mono_marshal_find_in_cache (cache, method)))
11822 sig = mono_method_signature (method);
11823 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11825 /* add "this" and exception param */
11826 param_count = sig->param_count + sig->hasthis + 1;
11828 /* dup & extend signature */
11829 csig = mono_metadata_signature_alloc (image, param_count);
11830 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11831 memcpy (csig, sig, sig_size);
11832 csig->param_count = param_count;
11835 csig->call_convention = MONO_CALL_DEFAULT;
11837 if (sig->hasthis) {
11839 csig->params [0] = &klass->byval_arg;
11840 /* move params up by one */
11841 for (i = 0; i < sig->param_count; i++)
11842 csig->params [i + 1] = sig->params [i];
11845 /* setup exception param as byref+[out] */
11846 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11847 &mono_defaults.exception_class->byval_arg);
11848 csig->params [param_count - 1]->byref = 1;
11849 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11851 /* convert struct return to object */
11852 if (MONO_TYPE_ISSTRUCT (sig->ret))
11853 csig->ret = &mono_defaults.object_class->byval_arg;
11855 #ifndef DISABLE_JIT
11856 /* local 0 (temp for exception object) */
11857 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11859 /* local 1 (temp for result) */
11860 if (!MONO_TYPE_IS_VOID (sig->ret))
11861 mono_mb_add_local (mb, sig->ret);
11863 /* clear exception arg */
11864 mono_mb_emit_ldarg (mb, param_count - 1);
11865 mono_mb_emit_byte (mb, CEE_LDNULL);
11866 mono_mb_emit_byte (mb, CEE_STIND_REF);
11869 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11870 clause->try_offset = mono_mb_get_label (mb);
11872 /* push method's args */
11873 for (i = 0; i < param_count - 1; i++) {
11877 mono_mb_emit_ldarg (mb, i);
11879 /* get the byval type of the param */
11880 klass = mono_class_from_mono_type (csig->params [i]);
11881 type = &klass->byval_arg;
11883 /* unbox struct args */
11884 if (MONO_TYPE_ISSTRUCT (type)) {
11885 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11887 /* byref args & and the "this" arg must remain a ptr.
11888 Otherwise make a copy of the value type */
11889 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11890 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11892 csig->params [i] = &mono_defaults.object_class->byval_arg;
11897 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11898 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11900 mono_mb_emit_op (mb, CEE_CALL, method);
11902 /* save result at local 1 */
11903 if (!MONO_TYPE_IS_VOID (sig->ret))
11904 mono_mb_emit_stloc (mb, 1);
11906 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11909 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11910 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11911 clause->data.catch_class = mono_defaults.object_class;
11913 clause->handler_offset = mono_mb_get_label (mb);
11915 /* store exception at local 0 */
11916 mono_mb_emit_stloc (mb, 0);
11917 mono_mb_emit_ldarg (mb, param_count - 1);
11918 mono_mb_emit_ldloc (mb, 0);
11919 mono_mb_emit_byte (mb, CEE_STIND_REF);
11920 mono_mb_emit_branch (mb, CEE_LEAVE);
11922 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11924 mono_mb_set_clauses (mb, 1, clause);
11926 mono_mb_patch_branch (mb, pos_leave);
11929 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11930 mono_mb_emit_ldloc (mb, 1);
11932 /* box the return value */
11933 if (MONO_TYPE_ISSTRUCT (sig->ret))
11934 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11937 mono_mb_emit_byte (mb, CEE_RET);
11940 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11947 * mono_marshal_free_dynamic_wrappers:
11949 * Free wrappers of the dynamic method METHOD.
11952 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11954 MonoImage *image = method->klass->image;
11956 g_assert (method_is_dynamic (method));
11958 /* This could be called during shutdown */
11959 if (marshal_mutex_initialized)
11960 mono_marshal_lock ();
11962 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11963 * they could be shared with other methods ?
11965 if (image->wrapper_caches.runtime_invoke_direct_cache)
11966 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11967 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11968 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11969 // FIXME: Need to clear the caches in other images as well
11970 if (image->delegate_bound_static_invoke_cache)
11971 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11973 if (marshal_mutex_initialized)
11974 mono_marshal_unlock ();
11978 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
11980 g_assert (ftnptr_eh_callback);
11981 ftnptr_eh_callback (gchandle);
11985 ftnptr_eh_callback_default (guint32 gchandle)
11987 MonoException *exc;
11988 gpointer stackdata;
11990 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
11992 exc = (MonoException*) mono_gchandle_get_target (gchandle);
11994 mono_gchandle_free (gchandle);
11996 mono_raise_exception (exc);
12000 * mono_install_ftnptr_eh_callback:
12002 * Install a callback that should be called when there is a managed exception
12003 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
12004 * managed exception to a native exception, to properly unwind the native
12005 * stack; this native exception will then be converted back to a managed
12006 * exception in their managed-to-native wrapper.
12009 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
12011 ftnptr_eh_callback = callback;
12014 static MonoThreadInfo*
12015 mono_icall_start (HandleStackMark *stackmark, MonoError *error)
12017 MonoThreadInfo *info = mono_thread_info_current ();
12019 mono_stack_mark_init (info, stackmark);
12020 mono_error_init (error);
12025 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error)
12027 mono_stack_mark_pop (info, stackmark);
12028 mono_error_set_pending_exception (error);